Shock absorber, vehicle suspension and vehicle

Abstract

The invention relates to a shock absorber, a vehicle suspension and a vehicle, the shock absorber comprises a first transmission part, a second transmission part and a moving structure, the moving structure is suitable for being connected with a part to be subjected to shock absorption, and the first transmission part and the second transmission part are both suitable for being connected with a driving part; the moving structure can be selectively in transmission connection with the driving part through the first transmission part or the second transmission part, so that the moving structure can move in the first direction under the action of the first transmission part or the second transmission part; the moving range of the moving structure under the action of the first transmission part is different from the moving range of the moving structure under the action of the second transmission part. The rotating part and the moving structure are matched in a mechanical transmission mode, the response speed is higher, and the air tightness requirement, the production and manufacturing difficulty, the manufacturing cost and the maintenance cost are low. By switching the first transmission part and the second transmission part, the shock absorber can have different shock absorption ranges, and the requirement for the control precision of the driving part can be lowered.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicle shock absorption, in particular to a shock absorber, a vehicle suspension and a vehicle. BACKGROUND

[0002] In the related art, the shock absorption range of a shock absorber is fixed, and the shock absorption range cannot be adjusted to adapt to different shock absorption requirements. In addition, the control precision of the shock absorber is required to be high, so as to meet the shock absorption requirements when the vibration amplitude of the part to be damped is small. SUMMARY

[0003] The purpose of the present disclosure is to provide a shock absorber, a vehicle suspension and a vehicle to solve the problems in the related art.

[0004] According to a first aspect of the present disclosure, a shock absorber is provided, comprising a first transmission member, a second transmission member and a moving structure, the moving structure being adapted to be connected with a part to be damped, the first transmission member and the second transmission member each being adapted to be connected with a driving member, the moving structure being selectively transmissionally connected with the driving member through the first transmission member or the second transmission member, so that the moving structure can move in a first direction under the action of the first transmission member or the second transmission member.

[0005] The moving range of the moving structure under the action of the first transmission member is different from the moving range of the moving structure under the action of the second transmission member.

[0006] Optionally, the size and / or shape of the first transmission member is different from that of the second transmission member.

[0007] Optionally, the first transmission member can rotate and drive the moving structure to move in the first direction, and the second transmission member can rotate and drive the moving structure to move in the first direction.

[0008] The maximum distance from the rotation center of the first transmission member to the profile edge of the first transmission member is different from the maximum distance from the rotation center of the second transmission member to the profile edge of the second transmission member, and / or the minimum distance from the rotation center of the first transmission member to the profile edge of the first transmission member is different from the minimum distance from the rotation center of the second transmission member to the profile edge of the second transmission member.

[0009] Optionally, the first transmission member and the second transmission member can each drive the moving structure to reciprocally move in the first direction when rotating in one rotation direction.

[0010] Optionally, the shock absorber further comprises a transmission engagement mechanism adapted to be in transmission connection with the driving member, the transmission engagement mechanism being selectively in transmission connection with the first transmission member or the second transmission member to transmit power of the driving member to the first transmission member or the second transmission member.

[0011] Optionally, the shock absorber further comprises a rotating shaft adapted to be in transmission connection with the driving member, the first transmission member and the second transmission member are both sleeved on the rotating shaft, the transmission engagement mechanism is capable of selectively transmitting the first transmission member or the second transmission member to the rotating shaft to drive the rotating shaft to rotate the first transmission member or the second transmission member.

[0012] Optionally, the transmission engagement mechanism comprises a first engagement member in transmission connection with the rotating shaft, a first engagement portion provided on the first transmission member, and a second engagement portion provided on the second transmission member, and an actuating member for driving the first engagement member to move to be in transmission engagement with the first engagement portion or the second engagement portion.

[0013] Optionally, the first engagement member is a gear provided on the rotating shaft, the first transmission member is formed with a first through hole, the second transmission member is formed with a second through hole, the first through hole and the second through hole are both capable of allowing the rotating shaft to pass through, the first engagement portion is a first tooth portion provided on a hole wall of the first through hole, and the second engagement portion is a second tooth portion provided on a hole wall of the second through hole, the first tooth portion and the second tooth portion are both capable of being engaged with the gear.

[0014] Optionally, the first engagement member is a friction disc provided on the rotating shaft, the first engagement portion is a first friction portion provided on the first transmission member, and the second engagement portion is a second friction portion provided on the second transmission member, the first friction portion and the second friction portion are both capable of being in transmission contact with the friction disc.

[0015] Optionally, the first engagement member is circumferentially locked and axially movably sleeved on the rotating shaft, the actuating member is connected with the first engagement member and is used to drive the first engagement member to move on the rotating shaft; or,

[0016] the first engagement member is fixedly sleeved on the rotating shaft, the actuating member is connected with the rotating shaft and is used to drive the rotating shaft to move to drive the first engagement member to move; or,

[0017] the first engagement member is fixedly sleeved on the rotating shaft, the actuating member is connected with the driving member and is used to drive the driving member to move to drive the rotating shaft and the first engagement member to move.

[0018] Optionally, the moving structure has a contact portion adapted to contact the first transmission member and the second transmission member to enable the first transmission member and the second transmission member to push the moving structure during rotation through the contact portion.

[0019] Optionally, the moving structure comprises a moving frame having the contact portion, the contact portion comprising an upper contact member and a lower contact member, the upper contact member and the lower contact member oppositely arranged along the first direction, the first transmission member and the second transmission member being located between the upper contact member and the lower contact member to enable the first transmission member and the second transmission member to push the upper contact member or the lower contact member during rotation.

[0020] Optionally, the upper contact member comprises a first upper contact portion and a second upper contact portion, and the lower contact member comprises a first lower contact portion and a second lower contact portion.

[0021] The first transmission member is located between the first upper contact portion and the first lower contact portion, and the first transmission member is capable of pushing the first upper contact portion or the first lower contact portion during rotation, and the second transmission member is located between the second upper contact portion and the second lower contact portion, and the second transmission member is capable of pushing the second upper contact portion and the second lower contact portion during rotation.

[0022] In the first direction, a distance from the first upper contact portion to the first lower contact portion is different from a distance from the second upper contact portion to the second lower contact portion.

[0023] Optionally, the upper contact member comprises a first body and a first protrusion arranged on the first body, the first protrusion protruding from the first body.

[0024] The lower contact member comprises a second body and a second protrusion arranged on the second body, the second protrusion protruding from the second body.

[0025] The first protrusion and the second protrusion are oppositely arranged along the first direction and protrude towards each other.

[0026] The first body is the first upper contact portion, the first protrusion is the second upper contact portion, the second body is the first lower contact portion, and the second protrusion is the second lower contact portion.

[0027] Optionally, the first protrusion is detachably mounted on the first body, and the second protrusion is detachably mounted on the second body.

[0028] Optionally, the first transmission member is configured such that an outer circumferential surface of the first transmission member is in contact with the first upper contact portion and the first lower contact portion at all times during rotation, and the second transmission member is configured such that an outer circumferential surface of the second transmission member is in contact with the second upper contact portion and the second lower contact portion at all times during rotation.

[0029] Optionally, in the first direction, the first distance between the first upper contact portion and the first lower contact portion is equal to the second distance between the contact point of the first transmission member with the first upper contact portion and the contact point of the first transmission member with the first lower contact portion.

[0030] In the first direction, the third distance between the second upper contact portion and the second lower contact portion is equal to the fourth distance between the contact point of the second transmission member with the second upper contact portion and the contact point of the first transmission member with the first lower contact portion.

[0031] Optionally, the first transmission member and / or the second transmission member is a cam, and a cross section of the cam is a lemniscate polygon.

[0032] Optionally, the cross section of the cam is formed as a lemniscate triangle.

[0033] Optionally, the moving structure further comprises a moving shaft, a first end of the moving shaft is connected with the moving frame, and a second end of the moving shaft is configured to be connected with the component to be damped.

[0034] Optionally, the damper further comprises a housing, and at least part of the moving structure is arranged in the housing and guided by an inner wall of the housing.

[0035] Optionally, the first transmission member is a first cam or a first disc; and / or,

[0036] the second transmission member is a second cam or a second disc.

[0037] Optionally, the first transmission member is a first cam, and a rotation center of the first cam is arranged eccentrically relative to a center of a base circle of the first cam and / or a geometric center of the first cam; or,

[0038] the first transmission member is a first disc, and a rotation center of the first disc is arranged eccentrically relative to a center of the first disc.

[0039] Optionally, the second transmission member is a second cam, and a rotation center of the second cam is arranged eccentrically relative to a center of a base circle of the second cam and / or a geometric center of the second cam; or,

[0040] The second transmission member is a second disc, and a rotation center of the second disc is arranged eccentrically relative to a center of the second disc.

[0041] Optionally, the shock absorber further comprises the driving member.

[0042] According to a second aspect of the present disclosure, a vehicle suspension is provided, comprising the shock absorber as described above.

[0043] According to a third aspect of the present disclosure, a vehicle is provided, comprising the vehicle suspension as described above.

[0044] Optionally, the vehicle further comprises a vehicle body and a vehicle wheel, the shock absorber comprises a shock absorber mounting seat, the shock absorber mounting seat is mounted to the vehicle body, and the moving structure of the shock absorber is connected to the vehicle wheel.

[0045] According to the above technical solution, since the moving range of the moving structure under the action of the first transmission member is different from the moving range of the moving structure under the action of the second transmission member, in other words, the first transmission member and the second transmission member can drive the moving structure to move different distances in the first direction. In this way, on the one hand, by switching the first transmission member and the second transmission member, the moving structure can be driven to move by different transmission members, so that the moving structure has different displacement ranges in the first direction, thereby enabling the shock absorber to have different shock absorbing capabilities and shock absorbing ranges, for example, one of the first transmission member and the second transmission member can adapt to large low-frequency vibrations, and the other of the first transmission member and the second transmission member can adapt to small high-frequency vibrations. On the other hand, the control accuracy requirement of the driving member can also be simplified. When the vibration is small, the transmission member capable of driving the moving structure to move in a smaller moving range among the first transmission member and the second transmission member can be used to drive the moving structure to move. In this way, even if the driving member does not need to be controlled with high accuracy, by switching the corresponding transmission member, the moving structure can also have a smaller moving range in the first direction, in other words, without improving the control accuracy of the driving member, the shock absorber can also be applied to different shock absorbing requirements, and the control requirement of the driving member is reduced.

[0046] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0047] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0048] Figure 1 is a perspective structural schematic view of a shock absorber provided by a first exemplary embodiment of the present disclosure.

[0049] Figure 2 is a perspective view of the shock absorber according to the first exemplary embodiment of the present disclosure.

[0050] Figure 3 is a cross-sectional view of the shock absorber according to the first exemplary embodiment of the present disclosure.

[0051] Figure 4 is a cross-sectional view of the shock absorber according to the first exemplary embodiment of the present disclosure, and Figure 1 the direction of the cross-section is different.

[0052] Figure 5 is a front view of the shock absorber according to the first exemplary embodiment of the present disclosure, in which a rotating member is installed in a moving frame.

[0053] Figure 6 is a front view of the shock absorber according to the second exemplary embodiment of the present disclosure.

[0054] Figure 7 is a cross-sectional view of the shock absorber according to the second exemplary embodiment of the present disclosure.

[0055] Figure 8 is a cross-sectional view of the shock absorber according to the third exemplary embodiment of the present disclosure.

[0056] Figure 9 is a perspective view of the shock absorber according to the third exemplary embodiment of the present disclosure.

[0057] Figure 10 is a perspective view of the shock absorber according to the third exemplary embodiment of the present disclosure, and Figure 7 the view angle is different.

[0058] Figure 11 is a cross-sectional view of the shock absorber according to the fourth exemplary embodiment of the present disclosure.

[0059] Figure 12 is Figure 11 an enlarged view of A in FIG. 4.

[0060] Figure 13 is Figure 11 an enlarged view of B in FIG. 4.

[0061] Figure 14 is a perspective view of a moving structure of the shock absorber according to the fourth exemplary embodiment of the present disclosure.

[0062] Explanation of Reference Numerals

[0063] 100 - shock absorber; 1 - driving member; 11 - rotary motor; 2 - rotating member; 21 - cam; 3 - moving structure; 31 - moving frame; 311 - upper contact member; 3111 - first upper contact part; 3112 - second upper contact part; 3113 - first body; 3114 - first protrusion; 312 - lower contact member; 3121 - first lower contact part; 3122 - second lower contact part; 3123 - second body; 3124 - second protrusion; 321 - yoke; 33 - moving shaft; 34 - contact part; 4 - elastic member; 5 - guide structure; 51 - guide groove; 6 - rotating shaft; 7 - shock absorber mounting seat; 8 - transmission engagement mechanism; 81 - first engagement member; 82 - gear; 9 - transmission mechanism; 91 - speed reduction transmission mechanism; 911 - first gear; 912 - second gear; 92 - reversing transmission mechanism; 921 - first reversing transmission member; 9211 - first bevel gear; 922 - second reversing transmission member; 9221 - second bevel gear; 93 - gear transmission mechanism; 20 - intermediate transmission shaft; 30 - housing; 40 - first transmission member; 401 - first engagement part; 402 - first through hole; 403 - first tooth part; 404 - first cam; 50 - second transmission member; 501 - second engagement part; 502 - second through hole; 503 - second tooth part; 504 - second cam. DETAILED DESCRIPTION

[0064] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0065] In the present disclosure, the orientation or positional relationship indicated by the orientation words such as "first direction" used without the opposite description is defined based on the drawing surface direction shown in the corresponding drawing, such as Figures 1 to 14 as shown, is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, and a particular orientation configuration and operation, and therefore cannot be understood as a limitation of the present disclosure. It can be understood that the "first direction" can be a direction parallel or approximately parallel to the vibration direction of the part to be damped. For the application scenario of the shock absorber provided by the present disclosure to the vehicle field (i.e., the shock absorber is a vehicle shock absorber), the "first direction" can be the up-down direction in the normal driving state of the vehicle.

[0066] The terms "inner, outer" refer to the inner and outer of the corresponding structure profile. In addition, it should be noted that the terms such as "first", "second" used are for distinguishing one element from another element, and do not have sequential and important meanings. In addition, in the description with reference to the drawings, the same reference signs in different drawings represent the same elements.

[0067] In the description of the present disclosure, it also needs to be explained that, unless explicitly specified and limited, the terms "set", "connect", "connected", "install" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0068] As shown in Figures 1 to 14 The present disclosure provides a shock absorber 100, which comprises a rotating member 2 and a moving structure 3, the moving structure 3 is matched to the rotating member 2, the rotating member 2 can rotate and drive the moving structure 3 to move in a first direction.

[0069] It can be understood that the moving structure 3 is suitable to be connected with a component to be damped to reduce or eliminate the vibration effect of the component to be damped.

[0070] Here, it needs to be explained that the shock absorber 100 provided by the present disclosure can be applied to any appropriate application scenario with damping requirements, for example, the shock absorber 100 can be applied to a vehicle to absorb the impact of bumps and potholes on the road surface; or the shock absorber 100 can also be applied to an aircraft landing gear to absorb the impact of landing; or the shock absorber 100 can also be applied to mining machinery equipment, sports equipment, etc., which is not limited by the present disclosure.

[0071] The above-mentioned component to be damped refers to a component whose vibration effect needs to be reduced or eliminated, for example, for the application scenario of the shock absorber 100 as a vehicle shock absorber, the component to be damped can be the vehicle body or the vehicle wheel, and the moving structure 3 of the shock absorber 100 can be connected to the vehicle body or the vehicle wheel (for example, the moving structure 3 can be connected to the vehicle wheel through the axle, or directly connected to the vehicle wheel).

[0072] Through the above technical solution, since the rotating member 2 can rotate and drive the moving structure 3 to move in the first direction, by reasonably adjusting the rotation direction and / or rotation angle of the rotating member 2, the moving structure 3 can be driven to move in the first direction towards the direction opposite to the vibration direction of the component to be damped, so that the vibration of the component to be damped is reduced or offset by the movement of the moving structure 3 of the shock absorber 100, thereby realizing damping.

[0073] For example, when the above-mentioned shock absorber 100 is applied to a vehicle, if the vehicle is impacted by the road surface and vibrates, by reasonably adjusting the rotation direction and / or rotation angle of the rotating member 2, the moving structure 3 can be driven to move in the first direction towards the direction opposite to the vibration direction of the vehicle, so that the impact of the road surface is reduced or offset by the movement of the moving structure 3 of the shock absorber 100, thereby realizing the damping of the vehicle.

[0074] And, in the shock absorber 100 provided by the present disclosure, the rotating member 2 can drive the moving structure 3 to move in the first direction when the rotating member 2 rotates, that is, the rotating member 2 and the moving structure 3 are matched by mechanical transmission, compared with the hydraulic shock absorber and the air spring shock absorber in the related art, on the one hand, the mechanical transmission type shock absorber 100 provided by the present disclosure has faster response speed, on the other hand, the air tightness requirement can be reduced (the sealing requirement of the medium of the hydraulic shock absorber and the air spring shock absorber is higher), the production and manufacturing difficulty is reduced, and the manufacturing cost and maintenance cost are reduced.

[0075] In addition, since in the shock absorber 100 provided by the present disclosure, the rotating member 2 drives the moving structure 3 to move in the first direction by rotating, the rotating motion of the rotating member 2 is converted into the linear motion of the moving structure 3, and in the case of meeting the movement stroke requirement of the moving structure 3, the space required by the rotating member 2 in the first direction is small, which is beneficial to reduce the size of the overall structure of the shock absorber 100 in the first direction, and facilitates the arrangement of the shock absorber 100.

[0076] The above-mentioned rotating of the rotating member 2 and driving the moving structure 3 to move in the first direction can be driving the moving structure 3 to move in the first direction in one direction, or can be reciprocating movement in the first direction, and the present disclosure does not limit this. In addition, for the case that the rotating member 2 rotates and drives the moving structure 3 to reciprocate in the first direction, the rotating member 2 can drive the moving structure 3 to reciprocate in the first direction when rotating in one direction, or the rotating member 2 can drive the moving structure to reciprocate in the first direction when rotating in different directions, and the present disclosure does not limit this.

[0077] As an embodiment of the present disclosure, the rotating member 2 can drive the moving structure 3 to reciprocate in the first direction when rotating in one rotating direction. In other words, the rotating member 2 does not need to repeatedly change its rotating direction, but only needs to rotate in one direction, so as to drive the moving structure 3 to reciprocate and realize shock absorption, so that the control of the shock absorber 100 is simple.

[0078] Here, it should be noted that the reciprocating movement of the above-mentioned moving structure 3 refers to the movement of the moving structure 3 in the first direction, that is, the moving structure 3 can move from the first position to the second position in the first direction, or can move from the second position to the first position.

[0079] In order to drive the rotating member 2 to rotate, optionally, Figures 1-3 , Figures 7-9 , Figure 11As shown, the shock absorber 100 further comprises a driving member 1, which is connected with the rotating member 2 and drives the rotating member 2 to rotate. In this way, the driving member 1 drives the moving structure 3 to move along the first direction by driving the rotating member 2 to rotate, so as to realize the shock-absorbing effect of the shock absorber 100. It can be understood that the driving member 1 can directly drive the rotating member 2 to rotate, for example, the rotating member 2 is sleeved on the output shaft of the driving member 1; or the driving member 1 can indirectly drive the rotating member 2 to rotate, for example, the driving member 1 drives the rotating member 2 to rotate through the transmission mechanism 9.

[0080] The specific type of the driving member 1 is not limited in the present disclosure, and the driving member 1 can be configured as a rotary motor 11.

[0081] Optionally, the shock absorber 100 can further comprise a rotating shaft 6, the rotating member 2 is in transmission connection with the rotating shaft 6 (for example, the rotating member 2 can be sleeved on the rotating shaft 6), and the driving member 1 is in transmission connection with the rotating shaft 6. In other words, the driving member 1 can be connected with the rotating member 2 through the rotating shaft 6, so as to drive the rotating shaft 6 to rotate, thereby driving the rotating member 2 to rotate.

[0082] As shown in Figure 6 and Figure 7 In an embodiment provided by the present disclosure, the shock absorber 100 comprises the driving member 1, the rotating member 2 and the moving structure 3, the moving structure 3 is fitted on the rotating member 2, the axis of the output shaft of the driving member 1 intersects with the rotation axis of the rotating member 2, and the driving member 1 is in transmission connection with the rotating member 2, so as to drive the rotating member 2 to rotate and drive the moving structure 3 to move along the first direction. The moving structure 3 comprises a moving shaft 33 extending along the first direction, the moving shaft 33 is adapted to be connected with a component to be damped, and the axis of the output shaft of the driving member 1 is arranged in parallel with the axis of the moving shaft 33.

[0083] Moreover, since the axis of the output shaft of the driving member 1 intersects with the rotation axis of the rotating member 2, and the axis of the output shaft of the driving member 1 is arranged in parallel with the axis of the moving shaft 33 (i.e. the output shaft of the driving member 1 extends along the first direction), the above-mentioned shock absorber 100 can be designed by reasonably arranging the positions of the driving member 1, the rotating member 2 and the moving structure 3, so as to arrange the driving member 1 on one side of the moving structure 3 in the first direction, which is beneficial to reduce the space occupied by the driving member 1 in other directions intersecting with the first direction, thereby facilitating the arrangement of the shock absorber 100.

[0084] For example, when the shock absorber 100 is applied to a vehicle, the moving shaft 33 extends along the up-down direction of the vehicle, and the driving member 1 is arranged on one side of the moving structure 3 in the up-down direction. Even if the arrangement space of the vehicle in other directions intersecting with the up-down direction (for example, the horizontal direction) is small, the shock absorber 100 can still be arranged in the vehicle.

[0085] Optionally, the axis of the output shaft of the driving member 1 intersects with the rotation axis of the rotating member 2, which can be that the axis of the output shaft of the driving member 1 is perpendicular to the rotation axis of the rotating member 2. As other embodiments, the above-mentioned axis of the output shaft of the driving member 1 and the rotation axis of the rotating member 2 can also be arranged at an acute angle or an obtuse angle.

[0086] The present disclosure does not limit the specific position between the driving member 1 and the moving structure 3, as an embodiment of the present disclosure, as shown in Figure 6 and Figure 7 , the output shaft of the driving member 1 is coaxially arranged with the moving shaft 33, that is, the axis of the output shaft of the driving member 1 coincides with the axis of the moving shaft 33.

[0087] The present disclosure also does not limit the specific position between the driving member 1 and the moving structure 3, as an embodiment of the present disclosure, in the first direction, the driving member 1 is arranged apart from the moving structure 3. In this way, the driving member 1 and the moving structure 3 have a space for arranging the rotating member 2, and the transmission mechanism 9, such as the reversing transmission mechanism 92, the speed reduction transmission mechanism 91, etc., can also be arranged in the space.

[0088] Optionally, as shown in Figure 6 and Figure 7 , for the case that the shock absorber 100 includes the rotating shaft 6 and the rotating member 2 is sleeved on the rotating shaft 6, the axis of the output shaft of the driving member 1 intersects with the axis of the rotating shaft 6. Specifically, the axis of the output shaft of the driving member 1 is perpendicular to the axis of the rotating shaft 6.

[0089] As shown in Figures 8 to 10 , in an embodiment provided by the present disclosure, the shock absorber 100 includes the driving member 1, the rotating member 2 and the moving structure 3, the moving structure 3 is fitted to the rotating member 2, the axis of the output shaft of the driving member 1 and the rotation axis of the rotating member 2 are parallel to each other, the driving member 1 and the rotating member 2 are transmissionally connected, so that the driving member 1 can drive the rotating member 2 to rotate and drive the moving structure 3 to move in the first direction, the moving structure 3 includes the moving shaft 33, the moving shaft 33 extends in the first direction, the moving shaft 33 is adapted to be connected with the component to be damped, and the axis of the output shaft of the driving member 1 intersects with the axis of the moving shaft 33.

[0090] Since the axis of the output shaft of the driving member 1 and the rotation axis of the rotating member 2 are parallel to each other, and the axis of the output shaft of the driving member 1 intersects with the axis of the moving shaft 33, by reasonably designing the positions of the driving member 1, the rotating member 2 and the moving structure 3, the driving member 1 can be arranged on the side of the moving structure 3 in the other direction intersecting with the first direction, that is, the driving member 1 and the moving structure 3 are not arranged in the first direction, which is conducive to reducing the space occupied by the driving member 1 in the first direction, facilitating the arrangement of the shock absorber 100, and is conducive to increasing the stroke range (i.e. the moving range of the moving structure) of the shock absorber.

[0091] For example, when the damper 100 is applied to a vehicle, the moving shaft 33 extends in the up-down direction of the vehicle, and the damper 100 can be arranged in the vehicle even if the space in the up-down direction of the vehicle is small, and the arrangement space in other directions intersecting the up-down direction (for example, the horizontal direction) is large.

[0092] Optionally, as shown in Figure 8 and Figure 9 , the axis of the output shaft of the driving member 1 can be perpendicular to the axis of the moving shaft 33. In other words, the driving member 1 can be arranged on one side of the moving shaft 33 along the radial direction thereof, so that the damper 100 as a whole occupies a smaller space in the first direction, which is conducive to the arrangement of the damper 100.

[0093] Optionally, in the radial direction of the moving shaft 33, the driving member 1 is arranged spaced apart from the moving shaft 33. In this way, the rotating member 2 can be arranged in the space between the driving member 1 and the moving shaft 33, and the transmission mechanism 9, such as the speed reduction transmission mechanism 91 or the gear transmission mechanism 93, can also be arranged in the space.

[0094] For the embodiment in which the damper 100 includes the rotating shaft 6, optionally, as shown in Figures 8 to 10 , the axis of the output shaft of the driving member 1 is parallel to the axis of the rotating shaft 6, the driving member 1 is in transmission connection with the rotating shaft 6, and the rotating shaft 6 is in transmission connection with the rotating member 2.

[0095] Optionally, as shown in Figures 8 to 10 , the axis of the rotating shaft 6 is perpendicular to the axis of the moving shaft 33.

[0096] Optionally, as shown in Figures 8 to 10 , the axis of the output shaft of the driving member 1 and the axis of the rotating shaft 6 are both perpendicular to the first direction, and the output shaft of the driving member 1 and the rotating shaft 6 are arranged spaced apart along the first direction. The space between the output shaft of the driving member 1 and the rotating shaft 6 can be arranged with the transmission mechanism 9, and the driving member 1 can be connected with the rotating shaft 6 through the transmission mechanism 9. The transmission mechanism 9 can be a speed reduction transmission mechanism 91 or a gear transmission mechanism 93.

[0097] The present disclosure does not limit the specific shape of the rotating member 2 described above, as long as the rotating member 2 can drive the moving structure 3 to move in the first direction when the rotating member 2 rotates. As an embodiment of the present disclosure, as shown in Figures 1 to 11 , the distance between the contour edge of the rotating member 2 and the rotation center of the rotating member 2 in the first direction changes with the rotation of the rotating member 2. In other words, during the rotation of the rotating member 2, the distance between the contour edge of the rotating member 2 and the rotation center of the rotating member 2 in the first direction is constantly changing, so that the rotating member 2 can drive the moving structure 3 to move in the first direction when the rotating member 2 rotates.

[0098] It can be understood that the profile edge of the rotating member 2 has two distances from the rotation center of the rotating member 2 in the first direction, and the distance between the profile edge of the rotating member 2 and the rotation center of the rotating member 2 in the first direction changes with the rotation of the rotating member 2. It can be that at least one of the two distances between the profile edge of the rotating member 2 and the rotation center of the rotating member 2 in the first direction changes.

[0099] The specific type of the rotating member 2 is not limited in the present disclosure, and as an embodiment of the present disclosure, as shown in Figures 1 to 10 , the rotating member 2 can be configured as a cam 21.

[0100] Optionally, the cam 21 can be a disc cam, a cylindrical cam, etc., which is not limited in the present disclosure.

[0101] As another embodiment provided by the present disclosure, the rotating member 2 can be configured as a disc.

[0102] For the embodiment in which the rotating member 2 is configured as a disc, the rotation center of the disc is eccentrically arranged relative to the center of the disc, so that the distance between the profile edge of the disc and the rotation center of the disc in the first direction is constantly changing. In other words, the rotation center of the disc does not coincide with the center of the disc, so that the distance between the rotation center of the disc and the profile edge of the disc in the first direction can constantly change during the rotation of the disc, thereby driving the movement of the movement structure 3 in the first direction.

[0103] For the embodiment in which the rotating member 2 is configured as a cam 21, the rotation center of the cam 21 can coincide with the center of the base circle of the cam 21 and / or the geometric center of the cam 21, or the rotation center of the cam 21 can not coincide with the center of the base circle of the cam 21 and / or the geometric center of the cam 21.

[0104] As an embodiment of the present disclosure, as shown in Figure 4 , Figure 5 , Figure 9 and Figure 10 , the rotation center of the cam 21 is eccentrically arranged relative to the center of the base circle of the cam 21 and / or the geometric center of the cam 21. Since the rotation center of the cam 21 is eccentrically arranged relative to the base circle of the cam 21 and / or the geometric center of the cam 21, the difference between the maximum distance and the minimum distance between the rotation center of the cam 21 and the profile edge of the cam 21 in the first direction increases during the rotation of the cam 21, so that the cam 21 has a larger push stroke and a smaller return stroke. Thus, during the rotation of the cam 21, the cam 21 can drive the movement of the movement structure 3 in the first direction to a larger range, and the shock absorber 100 can have a larger shock absorbing range.

[0105] Optionally, a ratio of the maximum distance L Max from the profile edge of the cam 21 to the rotation center of the cam 21 to the minimum distance L Min from the profile edge of the cam 21 to the rotation center of the cam 21 satisfies 1 < L Max / L Min ≤ 4. Since the difference between the maximum distance and the minimum distance from the rotation center of the cam 21 to the profile edge of the cam 21 in the first direction is large, the cam 21 has a large push stroke and a small return stroke.

[0106] In addition, since the ratio of the maximum distance L Max to the minimum distance L Min from the profile edge of the cam 21 to the rotation center of the cam 21 satisfies L Max / L Min ≤ 4, in other words, the maximum distance L Max from the profile edge of the cam 21 to the rotation center of the cam 21 is less than or equal to 4 times the minimum distance L Min , the cam 21 can improve the damping range of the damper 100 while avoiding the situation that the size of the cam 21 is large due to the damping range of the damper 100 being too large (e.g., far exceeding the required damping range of the vehicle), so that the size of the damper 100 using the cam 21 is large, thereby causing the damper 100 to be inconvenient to arrange.

[0107] The present disclosure does not limit the specific transmission matching relationship between the rotating member 2 and the moving structure 3. As an embodiment provided by the present disclosure, the moving structure 3 has a contact portion 34 adapted to contact the rotating member 2, so that the rotating member 2 can push the moving structure 3 through the contact portion 34 during rotation. In other words, the profile edge of the rotating member 2 can contact the contact portion 34 of the moving structure 3 during rotation, so that the moving structure 3 can move in the first direction under the pushing action of the profile edge of the rotating member 2 during rotation of the rotating member 2.

[0108] Here, it should be noted that the rotating member 2 can always contact the contact portion 34 during rotation, or can contact the contact portion 34 at some moments during rotation, which is not limited by the present disclosure.

[0109] Optionally, as shown in Figures 1 to 14 , the moving structure 3 can include a moving frame 31 having a contact portion 34, the contact portion 34 including an upper contact piece 311 and a lower contact piece 312 connected in series, the upper contact piece 311 and the lower contact piece 312 being oppositely arranged in the first direction, and the rotating member 2 being located between the upper contact piece 311 and the lower contact piece 312, so that the rotating member 2 can push the upper contact piece 311 or the lower contact piece 312 during rotation.

[0110] Since the contact portion 34 comprises the upper contact piece 311 and the lower contact piece 312 oppositely arranged along the first direction, and the rotating member 2 is capable of pushing the upper contact piece 311 or the lower contact piece 312 during the rotation, in other words, during the rotation of the rotating member 2, the profile edge of the rotating member 2 is capable of contacting at least one of the upper contact piece 311 and the lower contact piece 312, thus, even if the rotating member 2 rotates towards one direction all the time, the upper contact piece 311 and / or the lower contact piece 312 is capable of contacting the profile edge of the rotating member 2, thereby realizing the reciprocating movement of the moving structure 3 along the first direction.

[0111] In order to further improve the damping effect of the damper 100, as an embodiment of the present disclosure, the rotating member 2 is configured to enable the profile edge of the rotating member 2 to always contact the upper contact piece 311 and the lower contact piece 312 during the rotation. Since the profile edge of the rotating member 2 is capable of always contacting the upper contact piece 311 and the lower contact piece 312 during the rotation. In this way, on the one hand, the upper contact piece 311, the lower contact piece 312 and the rotating member 2 always contact each other, and the damper 100 itself will not vibrate, on the one hand, it improves the damping effect of the damper 100, on the other hand, it also avoids the mutual collision between the upper contact piece 311, the lower contact piece 312 and the rotating member 2, so as to avoid the situation that one or more of the upper contact piece 311, the lower contact piece 312 and the rotating member 2 are easily damaged.

[0112] In order to enable the rotating member 2 to always contact the upper contact piece 311 and the lower contact piece 312 of the moving structure 3 during the rotation of the rotating member 2, optionally, as shown in Figure 4 、 Figure 5 、 Figure 9 and Figure 10 , the rotating member 2 is a cam 21, and the cross section of the cam 21 is a Leno polygon.

[0113] Here, it should be noted that the Leno polygon refers to an equal-width curve, and the distance between the centroid (i.e. the geometric center of the cross section) of the Leno polygon and any point on the profile edge thereof is equal. That is to say, the Leno polygon has the same width in any direction.

[0114] Since the Leno polygon has the same width in any direction, by reasonably setting the distance between the upper contact piece 311 and the lower contact piece 312 oppositely arranged along the first direction, the cam 21 with the cross section formed as a Leno polygon is capable of always contacting the upper contact piece 311 and the lower contact piece 312 during the rotation.

[0115] The present disclosure does not limit the specific type of Leno polygon, as an embodiment of the present disclosure, as shown in Figure 4 、 Figure 5 、 Figure 9 andFigure 10 As shown in the drawings, the cross section of the cam 21 can be formed as a Reuleaux triangle.

[0116] For the embodiment in which the moving structure 3 comprises a moving frame 31, the moving frame 31 has a contact portion 34 comprising the upper contact piece 311 and the lower contact piece 312 connected thereto, in order to further improve the damping effect of the damper 100, optionally, in the first direction, the upper contact piece 311 and the lower contact piece 312 have a first distance therebetween, in the first direction, the second distance between the contact point of the rotating piece 2 with the upper contact piece 311 and the contact point of the rotating piece 2 with the lower contact piece 312, wherein the first distance is equal to the second distance. In other words, the distance between the two contact points of the rotating piece 2 with the upper contact piece 311 and the lower contact piece 312 is equal to the distance between the upper contact piece 311 and the lower contact piece 312, so that by reasonably designing the shape of the rotating piece 2, the contour edge of the rotating piece 2 can always be in contact with the upper contact piece 311 and the lower contact piece 312 during rotation, and no collision occurs between the upper contact piece 311, the lower contact piece 312 and the rotating piece 2, and the damper 100 itself does not vibrate, on the one hand, the damping effect of the damper 100 is improved, on the other hand, the mutual collision between the upper contact piece 311, the lower contact piece 312 and the rotating piece 2 is also avoided, so that the damage to one or more of the upper contact piece 311, the lower contact piece 312 and the rotating piece 2 is avoided.

[0117] As shown in the drawings, Figures 1-13 , Figure 4 , Figures 6 to 11 and Figure 14 As shown in the drawings, for the embodiment in which the moving structure 3 further comprises a moving shaft 33 connected with the component to be damped, the first end of the moving shaft 33 can be connected with the moving frame 31, and the second end of the moving shaft 33 is used to be connected with the component to be damped. In other embodiments, the lower contact piece 312 can be connected with the component to be damped.

[0118] In order to facilitate the connection of the moving shaft 33 with the component to be damped, as an embodiment of the present disclosure, the lower end of the moving shaft 33 is provided with a connecting portion for connecting with the component to be damped. In other words, through the connecting portion, the moving shaft 33 can be connected with the component to be damped, and the connection between the moving shaft 33 and the component to be damped is relatively simple.

[0119] Optionally, the end of the moving shaft 33 away from the rotating piece 2 is provided with a yoke 321, and the yoke 321 is used to be connected with the component to be damped, and the connecting portion comprises the yoke 321. For the application scenario in which the damper 100 is applied to a vehicle, the yoke 321 can facilitate the connection of the moving shaft 33 with the wheel or axle.

[0120] To further improve the damping effect of the damper 100, optionally, as shown in Figure 3 , Figure 4 and Figures 6 to 11 , the damper 100 further comprises an elastic member 4, which is sleeved on the moving shaft 33. Since the elastic member 4 is sleeved on the moving shaft 33, the elastic member 4 can absorb the impact caused by the vibration, thereby improving the damping effect of the damper 100. For example, when the damper 100 is applied to a vehicle, the elastic member 4 can absorb the impact of the road surface, thereby improving the damping effect of the damper 100.

[0121] It should be noted that the specific type of the elastic member 4 is not limited in the present disclosure. As an embodiment of the present disclosure, the above-mentioned elastic member 4 is configured as a spring, and as another embodiment, the above-mentioned elastic member 4 can also be an elastic sleeve or the like.

[0122] To enable the elastic member 4 to absorb the impact caused by the vibration, thereby improving the damping effect of the damper 100. Optionally, as shown in Figure 3 , Figure 4 and Figures 6 to 11 , one end of the elastic member 4 abuts against the housing 30 or the moving frame 31, and the other end of the elastic member 4 abuts against the connecting part (e.g. the yoke 321). In other words, the elastic member 4 is abutted between the housing 30 (or the moving frame 31) and the connecting part, and when the damper 100 is subjected to vibration so that the connecting part moves towards the direction close to the rotating member 2, the housing 30 (or the moving frame 31) and the connecting part jointly compress the elastic member 4, and the elastic force of the elastic member 4 acts on the housing 30 (or the moving frame 31) and the connecting part, thereby absorbing the impact caused by the vibration to a certain extent.

[0123] And when the damper 100 is subjected to vibration so that the connecting shaft moves towards the direction away from the rotating member 2, the housing 30 and the connecting part jointly stretch the elastic member 4, and the elastic force of the elastic member 4 can also act on the housing 30 and the connecting part, thereby absorbing the impact caused by the vibration to a certain extent.

[0124] Here, it can be understood that for the embodiment in which the yoke 321 is arranged at the end of the moving shaft 33 away from the rotating member 2, and the yoke 321 is used to connect with the part to be damped, one end of the elastic member 4 abuts against the housing 30, and the other end of the elastic member 4 abuts against the yoke 321.

[0125] To guide the movement of the moving structure 3 in the first direction, optionally, as shown in Figure 5 and Figure 14As shown, the shock absorber 100 also includes a guide structure 5, which guides the movement of the movable structure 3 in the first direction. Thus, during the rotation of the rotating member 2, the movable structure 3 does not rotate with the rotating member 2, but is able to move along the first direction under the combined action of the rotating member 2 and the guide structure 5, thereby achieving shock absorption.

[0126] This disclosure does not limit the specific structure of the guide structure 5. As one embodiment of this disclosure, such as Figure 5 and Figure 14 As shown, the movable structure 3 includes a movable frame 31, the rotating member 2 is located inside the movable frame 31 and can push the movable frame 31 to move along the first direction during rotation, the movable frame 31 has a guide groove 51 extending along the first direction, the shock absorber 100 also includes a rotating shaft 6, the rotating member 2 is sleeved on the rotating shaft 6, one end of the rotating shaft 6 passes through the guide groove 51 and is connected to the driving member 1, and the guide structure 5 includes the guide groove 51.

[0127] Since the rotating shaft 6 passes through the guide groove 51, one end of the rotating shaft 6 is connected to the driving member 1, and the other end of the rotating shaft 6 is connected to the rotating member 2. The side wall of the guide groove 51 can cooperate with the rotating shaft 6. During the rotation of the rotating shaft 6, the guide groove 51 of the moving frame 31 moves relative to the rotating shaft 6 in the first direction, thereby ensuring that the moving structure 3 moves in the first direction. This effectively avoids the situation where the moving structure 3 rotates with the rotating member 2 and the shock absorber 100 cannot dampen the vibration.

[0128] As another implementation of this disclosure, such as Figures 9 to 11 As shown, the shock absorber also includes a housing 30, and the guide structure 5 includes the housing 30. A portion of the moving structure 3 (e.g., the upper part of the moving structure 3) contacts two side walls of the housing 30 opposite each other in a second direction. The second direction is perpendicular to the first direction. The two side walls are used to guide the movement of the moving structure 3 in the first direction.

[0129] In other words, the upper part of the movable structure 3 is clamped between the two side walls of the housing 30. The two side walls of the housing 30 can limit the movable structure 3 in the second direction. During the rotation of the rotating shaft 6, the movable structure 3 can only move back and forth in the first direction, effectively preventing the movable structure 3 from rotating with the rotating part 2 and the shock absorber 100 from failing to dampen the vibration.

[0130] Optionally, such as Figures 9 to 11 As shown, in an embodiment where the movable structure 3 includes a movable frame 31, the movable frame 31 can contact two sidewalls of the housing 30 that are opposite each other in the second direction.

[0131] As other embodiments of the present disclosure, the shell 30 can further be provided with a guide groove 51 extending in the first direction, and one end of the rotating shaft 6 is arranged in the guide groove 51. In this way, the guide groove 51 can also guide the movement of the movement structure 3.

[0132] In order to facilitate the installation of the shock absorber 100, the shock absorber 100 can further comprise a shock absorber mounting seat 7, which is adapted to mount the driving member 1, as shown in Figures 1-3 、 Figure 4 、 Figure 6 and Figure 7 . The shock absorber mounting seat 7 can mount and fix the shock absorber 100, effectively preventing the shock absorber 100 from shaking.

[0133] In addition, since the shock absorber mounting seat 7 is adapted to mount the driving member 1, in other words, the shock absorber mounting seat 7 can be used to fix both the shock absorber 100 and the driving member 1, and the fixing structure of the driving member 1 does not need to be separately provided, which is conducive to simplifying the structure of the entire shock absorber 100 and reducing the volume of the shock absorber 100.

[0134] In order to transmit the power of the driving member 1 to the rotating member 2, as an embodiment of the present disclosure, the shock absorber 100 further comprises a transmission mechanism 9 and a rotating shaft 6, the rotating member 2 is sleeved on the rotating shaft 6, and the driving member 1 is in transmission connection with the rotating shaft 6 through the transmission mechanism 9. The transmission mechanism 9 and the rotating shaft 6 can transmit the power of the driving member 1, so that the driving member 1 can drive the rotating member 2 to rotate through the transmission mechanism 9 and the rotating shaft 6, and further drive the movement structure 3 to move, so as to realize the shock absorption of the shock absorber 100.

[0135] In order to improve the torque of the rotating member 2, the transmission mechanism 9 can comprise a speed reduction transmission mechanism 91, as an embodiment of the present disclosure. The speed reduction transmission mechanism 91 can reduce the speed and increase the distance of the driving member 1, so that the driving member 1 with smaller output torque can drive the rotating member 2 to rotate, which is conducive to saving the cost of the driving member 1 and saving the space occupied by the driving member 1 in the shock absorber 100.

[0136] Optionally, for the embodiment in which the shock absorber 100 comprises the shell 30, one or more of the transmission mechanism 9 (such as the speed reduction transmission mechanism 91, the reversing transmission mechanism 92, and the gear transmission mechanism 93) and the driving member 1 can be arranged in the shell 30.

[0137] The speed reduction transmission mechanism 91 can be a worm speed reduction mechanism, a planetary gear speed reduction mechanism, a gear speed reduction mechanism, etc., which is not limited in the present disclosure.

[0138] Optionally, as shown in Figure 7 and Figure 8As shown, the shock absorber 100 can further comprise a gear transmission mechanism 93, and the driving member 1 is in transmission connection with the rotating shaft 6 through the gear transmission mechanism 93. The gear transmission mechanism 93 can connect the driving member 1 and the rotating shaft 6, so as to drive the rotating shaft 6 to rotate.

[0139] Here, it can be understood that for the embodiment in which the shock absorber 100 further comprises the transmission mechanism 9 and the rotating shaft 6, and the rotating member 2 is sleeved on the rotating shaft 6, the transmission mechanism 9 can comprise the gear transmission mechanism 93. The driving member 1 is in transmission connection with the rotating shaft 6 through the gear transmission mechanism 93. The gear transmission mechanism 93 and the rotating shaft 6 can transmit the power of the driving member 1, so that the driving member 1 can drive the rotating member 2 to rotate through the gear transmission mechanism 93 and the rotating shaft 6, and further drive the moving structure 3 to move, so as to realize the shock absorption of the shock absorber 100.

[0140] Optionally, the transmission ratio of the gear transmission mechanism 93 is greater than 1. Since the transmission ratio of the gear transmission mechanism 93 is greater than 1, the output rotation speed of the gear transmission mechanism 93 is less than the input rotation speed of the gear transmission mechanism 93, and the output torque of the gear transmission mechanism 93 is greater than the input torque of the gear transmission mechanism 93. The gear transmission mechanism 93 is formed as a speed reduction transmission mechanism 91, which can play a role of speed reduction and distance increase for the driving member 1. Only the driving member 1 with a smaller output torque can drive the rotating member 2 to rotate, which is beneficial to saving the cost of the driving member 1 and saving the space occupied by the driving member 1 in the shock absorber 100.

[0141] For the embodiment in which the shock absorber 100 comprises the gear transmission mechanism 93 or the speed reduction transmission mechanism 91, optionally, as shown in Figure 7 and Figure 8 The gear transmission mechanism 93 or the speed reduction transmission mechanism 91 comprises first and second gears 911 and 912 that are in mesh with each other, the first gear 911 is sleeved on the output shaft of the driving member 1, the second gear 912 is sleeved on the rotating shaft 6, and the number of teeth of the first gear 911 is less than that of the second gear 912. The first and second gears 911 and 912 are in mesh with each other, and can transmit the power output by the driving member 1 to the rotating shaft 6, so as to drive the moving structure 3 to rotate and realize the shock absorption of the shock absorber 100.

[0142] In addition, since the number of teeth of the first gear 911 is less than the number of teeth of the second gear 912, the first gear 911 is sleeved on the output shaft of the driving member 1, and the second gear 912 is sleeved on the rotating shaft 6, in other words, the first gear 911 and the second gear 912 are formed into a speed reduction transmission mechanism 91, the first gear 911 and the second gear 912 can play a role of speed reduction and distance increase on the driving member 1, and the driving member 1 with a smaller output torque can drive the rotating member 2 to rotate, which is beneficial to saving the cost of the driving member 1 on the one hand, and is beneficial to saving the space occupied by the driving member 1 in the shock absorber 100 on the other hand.

[0143] The present disclosure does not limit the specific installation position of the gear transmission mechanism 93 in the shock absorber 100, and as an embodiment of the present disclosure, as shown in Figure 8 The shock absorber 100 further includes that the housing 30, the driving member 1, the gear transmission mechanism 93, the rotating shaft 6 and the rotating member 2 are located in the housing 30, and the partial moving structure 3 is located in the housing 30, and at least part of the moving shaft 33 penetrates out of the housing 30. The housing 30 can be used to install the gear rotating mechanism on the one hand, and the housing 30 can also play a protective role on the driving member 1, the gear transmission mechanism 93 and the rotating member 2, effectively avoiding the situation that the shock absorber 100 cannot be normally used due to the influence of dust and other impurities during use.

[0144] In order to facilitate the installation of the shock absorber 100 on the equipment to be damped, optionally, as shown in Figure 6 and Figure 7 The top of the housing 30 is provided with a shock absorber mounting seat 7. In other words, the shock absorber 100 is installed on the equipment to be damped through the shock absorber mounting seat 7 provided on the housing 30, so as to damp the equipment to be damped.

[0145] For the embodiment that the axis of the output shaft of the driving member 1 intersects with the axis of the rotating shaft 6, in order to transmit the power of the driving member 1 to the rotating shaft 6, optionally, as shown in Figure 6 and Figure 7 The transmission mechanism 9 includes a reversing transmission mechanism 92. The reversing transmission mechanism 92 can change the transmission direction of the power of the driving member 1, so that the driving member 1 can drive the rotating shaft 6 to rotate.

[0146] Optionally, as shown in Figure 6 and Figure 7 The output shaft of the driving member 1 is in transmission connection with the rotating shaft 6 through the reversing transmission mechanism 92. In this way, the reversing transmission mechanism 92 can transmit the power output by the output shaft of the driving member 1 to the rotating shaft 6, so as to drive the moving structure 3 to move, and realize the damping of the shock absorber 100.

[0147] The present disclosure does not limit the specific composition of the reversing transmission mechanism 92. As an embodiment of the present disclosure, the reversing transmission mechanism 92 includes a first reversing transmission member 921 and a second reversing transmission member 922, the axis of the first reversing transmission member 921 intersects the axis of the second reversing transmission member 922, the first reversing transmission member 921 is in transmission connection with the output shaft of the driving member 1, and the second reversing transmission member 922 is in transmission connection with the rotating shaft 6. Through the first reversing transmission member 921 and the second reversing transmission member 922, the direction of the power transmitted by the output shaft of the driving member 1 can be changed, so that the output shaft of the driving member 1 can drive the rotating shaft 6 to rotate.

[0148] The present disclosure also does not limit the specific types of the first reversing transmission member 921 and the second reversing transmission member 922. As an embodiment of the present disclosure, as shown in Figure 7 , the first reversing transmission member 921 is a first bevel gear 9211, the second reversing transmission member 922 is a second bevel gear 9221, and the first bevel gear 9211 and the second bevel gear 9221 are in meshing engagement. The first bevel gear 9211 and the second bevel gear 9221 in meshing engagement can change the direction of the power transmitted by the output shaft of the driving member 1, so that the output shaft of the driving member 1 can drive the rotating shaft 6 to rotate, thereby driving the moving structure 3 to move and achieving the shock absorption of the shock absorber 100.

[0149] As another embodiment of the present disclosure, one of the first reversing transmission member 921 and the second reversing transmission member 922 is a worm, and the other of the first reversing transmission member 921 and the second reversing transmission member 922 is a worm gear. The worm gear can also change the direction of the power transmitted by the output shaft of the driving member 1, so that the output shaft of the driving member 1 can drive the rotating shaft 6 to rotate.

[0150] For the embodiment in which the shock absorber 100 includes the reversing transmission mechanism 92, the output shaft of the driving member 1 can be directly connected to the rotating shaft 6 through the reversing transmission mechanism 92, and the output shaft of the driving member 1 can also be indirectly connected to the rotating shaft 6 through the reversing transmission mechanism 92, which is not limited by the present disclosure. As an embodiment of the present disclosure, as shown in Figure 7 , the first reversing transmission member 921 is sleeved on the output shaft of the driving member 1, and the second reversing transmission member 922 is sleeved on the rotating shaft 6. In other words, the output shaft of the driving member 1 can be directly connected to the rotating shaft 6 through the reversing transmission mechanism 92, and the reversing transmission mechanism 92 can change the direction of the power transmitted by the output shaft of the driving member 1, and the reversing transmission mechanism 92 can also transmit the power output by the output shaft of the driving member 1.

[0151] As another embodiment of the present disclosure, the shock absorber 100 further comprises an intermediate transmission shaft 20, the intermediate transmission shaft 20 is in transmission connection with the rotating shaft 6, the first reversing transmission member 921 is sleeved on the output shaft of the driving member 1, and the second reversing transmission member 922 is sleeved on the intermediate transmission shaft 20. In other words, the output shaft of the driving member 1 is indirectly connected with the rotating shaft 6 through the reversing transmission mechanism 92 and the intermediate transmission shaft 20.

[0152] For the embodiment provided with the intermediate transmission shaft 20, as shown in Figure 7 the shock absorber 100 can further comprise a speed reduction transmission mechanism 91, the second reversing transmission member 922 is in transmission connection with the intermediate transmission shaft 20, and the intermediate transmission shaft 20 is in transmission connection with the rotating shaft 6 through the speed reduction transmission mechanism 91. In other words, the power output by the output shaft of the driving member 1 is first transmitted to the rotating shaft 6 through the reversing transmission mechanism 92 and the speed reduction transmission mechanism 91. On the one hand, the reversing transmission mechanism 92 can change the direction of the power output by the driving member 1, and on the other hand, the speed reduction transmission mechanism 91 can increase the torque output by the driving member 1, so that the rotating shaft 6 can obtain the power with large torque to drive the rotation.

[0153] Optionally, as shown in Figure 7 the axis of the intermediate transmission shaft 20 is parallel to the axis of the rotating shaft 6, the speed reduction transmission mechanism 91 comprises a first gear 911 and a second gear 912 which are in meshing connection with each other, the first gear 911 is sleeved on the intermediate transmission shaft 20, the second gear 912 is sleeved on the rotating shaft 6, and the number of teeth of the first gear 911 is less than the number of teeth of the second gear 912. Since the number of teeth of the first gear 911 is less than the number of teeth of the second gear 912, the output rotation speed of the speed reduction transmission mechanism 91 is less than the input rotation speed of the speed reduction transmission mechanism 91, and the output torque of the speed reduction transmission mechanism 91 is greater than the input torque of the speed reduction transmission mechanism 91. The speed reduction transmission mechanism 91 can play a role of speed reduction and distance increase for the driving member 1, so that the driving member 1 with small output torque can drive the rotation of the rotating member 2, which is beneficial to saving the cost of the driving member 1 and saving the space occupied by the driving member 1 in the shock absorber 100.

[0154] In order to improve the shock absorption capacity and shock absorption range of the shock absorber 100, optionally, as shown in Figures 9 to 11 the rotating member 2 can be multiple (for example, the multiple rotating members 2 can comprise the first transmission member 40 and the second transmission member 40 mentioned below), the shapes and / or sizes of the multiple rotating members 2 are different, and the shock absorber 100 further comprises a transmission engagement mechanism 8 which is configured to selectively transmit any rotating member 2 to the driving member 1.

[0155] Due to the different shapes and / or sizes of the plurality of rotating members 2 and the transmission engagement mechanism 8 being configured to selectively connect any rotating member 2 to the driving member 1, in other words, the moving structure 3 has different moving ranges under the actions of the plurality of rotating members 2, that is, the plurality of rotating members 2 can respectively drive the moving structure 3 to move different distances in the first direction. In this way, on the one hand, by switching the plurality of rotating members 2, different rotating members 2 drive the moving structure 3 to move, so that the moving structure 3 has different displacements in the first direction, thereby enabling the shock absorber 100 to have different shock absorption capabilities and shock absorption ranges.

[0156] On the other hand, for the embodiment in which the rotating member 2 is driven by the driving member 1, the plurality of rotating members 2 can also simplify the control accuracy requirements of the driving member 1. When the vibration is small, by switching different rotating members 2, the moving structure 3 can have a smaller moving range in the first direction even without high-precision control of the driving member 1, in other words, without improving the control accuracy of the driving member 1, the shock absorber 100 can be adapted to different shock absorption needs, and the control requirements of the driving member 1 are lower.

[0157] As shown in FIG. 1, Figures 9 to 14 The present disclosure also provides a shock absorber 100, which comprises a first transmission member 40, a second transmission member 50, and a moving structure 3 adapted to be connected to a component to be damped, the first transmission member 40 and the second transmission member 50 are both adapted to be connected to a driving member 1, the moving structure 3 can be selectively transmissionally connected to the driving member 1 through the first transmission member 40 or the second transmission member 50, so that the moving structure 3 can move in a first direction under the actions of the first transmission member 40 or the second transmission member 50, wherein the moving range of the moving structure 3 under the actions of the first transmission member 40 is different from the moving range of the moving structure 3 under the actions of the second transmission member 50.

[0158] In the above-mentioned shock absorber 100, since the moving structure 3 can be connected to the component to be damped, the first transmission member 40 and the second transmission member 50 are adapted to be connected to the driving member 1, and the first transmission member 40 and the second transmission member 50 can both drive the moving structure 3 to move in the first direction, so that by driving the first transmission member 40 or the second transmission member 50 to move, the moving structure 3 in the shock absorber 100 can be driven to move in the first direction towards a direction opposite to the vibration direction, in other words, by driving the first transmission member 40 or the second transmission member 50, the moving direction of the moving structure 3 in the shock absorber 100 in the first direction is opposite to the direction of the vibration, so that the vibration of the component to be damped is reduced or offset by the movement of the moving structure 3 of the shock absorber 100, thereby achieving damping.

[0159] In addition, due to the difference between the moving range of the moving structure 3 under the action of the first transmission member 40 and the moving range of the moving structure 3 under the action of the second transmission member 50, in other words, the first transmission member 40 and the second transmission member 50 can drive the moving structure 3 to move different distances in the first direction. In this way, on the one hand, by switching the first transmission member 40 and the second transmission member 50, the moving structure 3 can have different displacement ranges in the first direction by making different transmission members drive the moving structure 3 to move, so that the shock absorber 100 can have different shock absorbing capabilities and shock absorbing ranges, for example, one of the first transmission member 40 and the second transmission member 50 can adapt to large low-frequency vibrations, and the other of the first transmission member 40 and the second transmission member 50 can adapt to small high-frequency vibrations. On the other hand, it is also possible to simplify the control accuracy requirements of the driving member 1. When the vibration is small, the transmission member capable of driving the moving structure 3 to move in a smaller moving range among the first transmission member 40 and the second transmission member 50 can be used to drive the moving structure 3 to move. In this way, even if the driving member 1 does not need to be controlled with high precision, the moving structure 3 can have a smaller moving range in the first direction, in other words, without improving the control accuracy of the driving member 1, the shock absorber 100 can be applied to different shock absorbing requirements, and the control requirements of the driving member 1 are reduced.

[0160] In order to make the moving range of the moving structure 3 under the action of the first transmission member 40 different from the moving range of the moving structure 3 under the action of the second transmission member 50. Optionally, as shown in Figures 9 to 11 the size and / or shape of the first transmission member 40 is different from the second transmission member 50. Due to the difference between the size and / or shape of the first transmission member 40 and the second transmission member 50, the moving structure 3 moves different distances in the first direction under the action of the first transmission member 40 or the second transmission member 50, so that the moving range of the moving structure 3 under the action of the first transmission member 40 is different from the moving range of the moving structure 3 under the action of the second transmission member 50.

[0161] For example, in the case that the first transmission member 40 and the second transmission member 50 both drive the moving structure 3 to move by moving, the length of the first transmission member 40 in the first direction can be different from the length of the second transmission member 50 in the first direction. For example, in the case that the first transmission member 40 and the second transmission member 50 both drive the moving structure 3 to move by rotating, the diameters of the first transmission member 40 and the second transmission member 50 can be different, or the outer contour shapes of the first transmission member 40 and the second transmission member 50 can be different.

[0162] The disclosure does not limit how the first transmission member 40 and the second transmission member 50 drive the moving structure 3 to move in the first direction. The first transmission member 40 and / or the second transmission member 50 can be rotatable and can drive the moving structure 3 to move during rotation.

[0163] The first transmission member 40 and / or the second transmission member 50 can also be movable to drive the moving structure 3 to move.

[0164] As an embodiment of the disclosure, the first transmission member 40 is rotatable and drives the moving structure 3 to move in the first direction, and the second transmission member 50 is rotatable and drives the moving structure 3 to move in the first direction. The maximum distance from the rotation center of the first transmission member 40 to the profile edge of the first transmission member 40 is different from the maximum distance from the rotation center of the second transmission member 50 to the profile edge of the second transmission member 50, and / or the minimum distance from the rotation center of the first transmission member 40 to the profile edge of the first transmission member 40 is different from the minimum distance from the rotation center of the second transmission member 50 to the profile edge of the second transmission member 50. In this way, the first transmission member 40 and the second transmission member 50 can drive the moving structure 3 to move different distances in the first direction.

[0165] For the above-mentioned embodiment, the shapes and / or sizes of the first transmission member 40 and the second transmission member 50 can be the same, but the positions of the rotation centers on the first transmission member 40 and the second transmission member 50 are different. For example, the first transmission member 40 is a first disc, and the second transmission member 50 is a second disc. The diameters of the first disc and the second disc are the same. The rotation center of the first disc is eccentrically arranged relative to the center of the first disc, and the center of the second disc is eccentrically arranged relative to the center of the second disc. The distance between the rotation center of the first disc and the center of the first disc is different from the distance between the rotation center of the second disc and the center of the second disc.

[0166] To facilitate control of the first transmission member 40 or the second transmission member 50 to drive the moving structure 3 to move in the first direction, optionally, the first transmission member 40 and the second transmission member 50 can both drive the moving structure 3 to reciprocate in the first direction when rotating in one rotation direction. In other words, the first transmission member 40 and the second transmission member 50 do not need to repeatedly change their rotation directions, but only need to rotate towards one direction to drive the moving structure 3 to move, thereby achieving shock absorption, and the control requirement of the shock absorber 100 is lower.

[0167] To facilitate switching of the shock absorption capacity and the shock absorption range of the shock absorber 100 during use, as an embodiment of the disclosure, the first transmission member 40 and the second transmission member 50 can be arranged to be rotatable and movable. Figures 9 to 11As shown, the shock absorber 100 further comprises a transmission engagement mechanism 8 adapted to be in transmission connection with the driving member 1, the transmission engagement mechanism 8 being capable of being selectively in transmission connection with the first transmission member 40 or the second transmission member 50 to transmit the power of the driving member 1 to the first transmission member 40 or the second transmission member 50. In this way, by means of the transmission engagement mechanism 8, the moving structure 3 can be driven by different transmission members, so that the shock absorber 100 has different shock absorbing capabilities and shock absorbing ranges, and the switching between different shock absorbing capabilities and shock absorbing ranges of the shock absorber 100 is convenient.

[0168] In order to facilitate the switching of the transmission engagement mechanism 8 between the first transmission member 40 and the second transmission member 50, optionally, as shown in Figures 9 to 11 As shown, the shock absorber 100 further comprises a rotating shaft 6 adapted to be in transmission connection with the driving member 1, the first transmission member 40 and the second transmission member 50 are both sleeved on the rotating shaft 6, and the transmission engagement mechanism 8 is capable of selectively transmitting the first transmission member 40 or the second transmission member 50 to the rotating shaft 6, so that the rotating shaft 6 can drive the first transmission member 40 or the second transmission member 50 to rotate. In this way, by means of the transmission engagement mechanism 8 being in transmission connection with the first transmission member 40 or the transmission engagement mechanism 8 being in transmission connection with the second transmission member 50, the rotating shaft 6 can selectively drive the moving structure 3 to move by means of the first transmission member 40 or by means of the second transmission member 50, so that the shock absorber 100 has different shock absorbing capabilities and shock absorbing ranges.

[0169] Optionally, as shown in Figures 9 to 11 The transmission engagement mechanism 8 comprises an engagement member 81 and an actuating member, the engagement member 81 is in transmission connection with the rotating shaft 6, the first transmission member 40 is provided with a first engagement portion 401, the second transmission member 50 is provided with a second engagement portion 501, and the actuating member is used to drive the engagement member 81 to move, so that the engagement member 81 is in transmission connection with the first engagement portion 401 or the second engagement portion 501. In other words, by adjusting the position of the engagement member 81 by means of the actuating member, the engagement member 81 can be in transmission connection with the first transmission member 40 or the second transmission member 50, so that the moving structure 3 can be driven by different transmission members (i.e. the first transmission member 40 or by the second transmission member 50), so that the shock absorber 100 has different shock absorbing capabilities and shock absorbing ranges.

[0170] For the embodiment in which the transmission engagement mechanism 8 comprises the engagement member 81 and the actuating member, the specific types of the engagement member 81 and the actuating member are not limited in the present disclosure, and as an embodiment of the present disclosure, as shown in Figures 9 to 11As shown, the above-mentioned engaging member 81 is a gear 82 arranged on the rotating shaft 6, the first transmission member 40 is formed with a first through hole 402, the second transmission member 50 is formed with a second through hole 502, the first through hole 402 and the second through hole 502 are both capable of allowing the rotating shaft 6 to pass through, the first engaging portion 401 is a first tooth portion 403 arranged on the hole wall of the first through hole 402, the second engaging portion 501 is a second tooth portion 503 arranged on the hole wall of the second through hole, and the first tooth portion 403 and the second tooth portion 503 are both capable of meshing with the gear. In other words, the engaging member 81 and the first transmission member 40 are both in gear meshing transmission, and the gear meshing transmission between the engaging member 81 and the first transmission member 40 and between the engaging member 81 and the second transmission member 50 is compact in structure and high in transmission efficiency.

[0171] As a second embodiment of the present disclosure, the above-mentioned engaging member 81 can also be a friction disc arranged on the rotating shaft 6, the first engaging portion 401 is a first friction portion arranged on the first transmission member 40, the second engaging portion 501 is a second friction portion arranged on the second transmission member 50, and the first friction portion and the second friction portion are both capable of being in transmission contact with the friction disc. In other words, the friction disc can be in friction contact with the first friction portion or the second friction portion, and the friction contact between the friction disc and the first transmission member 40 or the friction contact between the friction disc and the second transmission member 50 is also capable of transmitting torque, so as to enable the moving structure 3 to be driven by different transmission members (i.e. the first transmission member 40 or by the second transmission member 50), thereby enabling the shock absorber 100 to have different shock absorption capabilities and shock absorption ranges.

[0172] The present disclosure does not limit the specific connection relationship between the engaging member 81 and the rotating shaft 6, as a first embodiment of the present disclosure, the engaging member 81 is circumferentially locked and axially movably sleeved on the rotating shaft 6, the actuating member is connected with the engaging member 81 and is used for driving the engaging member 81 to move on the rotating shaft 6. In other words, the engaging member 81 is capable of moving on the rotating shaft 6 under the action of the actuating member, so as to be in transmission connection with the first transmission member 40 or the second transmission member 50, and the power of the driving member 1 is transmitted to the first transmission member 40 or the second transmission member 50.

[0173] As a second embodiment of the present disclosure, the engaging member 81 is fixedly sleeved on the rotating shaft 6, the actuating member is connected with the rotating shaft 6 and is used for driving the rotating shaft 6 to move, so as to drive the engaging member 81 to move. In other words, the engaging member 81 and the rotating shaft 6 are fixedly connected, the actuating member is capable of driving the engaging member 81 and the rotating shaft 6 to move together, so as to enable the engaging member 81 to be in transmission connection with the first transmission member 40 or the second transmission member 50, and the power of the driving member 1 is transmitted to the first transmission member 40 or the second transmission member 50.

[0174] As a third embodiment of the present disclosure, the engaging member 81 is fixedly sleeved on the rotating shaft 6, the actuating member is connected with the driving member 1 and is used to drive the driving member 1 to move, so as to drive the driving member, the rotating shaft 6 and the engaging member 81 to move together. In other words, the engaging member 81, the rotating shaft 6 and the driving member 1 are fixedly connected, and the actuating member can drive the engaging member 81, the rotating shaft 6 and the driving member 1 to move, so that the engaging member 81 is in driving connection with the first transmission member 40 or the second transmission member 50, and the power of the driving member 1 is transmitted to the first transmission member 40 or the second transmission member 50.

[0175] Optionally, the actuating member can be a linear motor.

[0176] The present disclosure does not limit the specific implementation of how the first transmission member 40 or the second transmission member 50 drives the moving structure 3 to move in the first direction. As an embodiment of the present disclosure, the moving structure 3 has a contact portion 34, which is adapted to contact the first transmission member 40 and the second transmission member 50, so that the first transmission member 40 and the second transmission member 50 can push the moving structure 3 through the contact portion 34 during rotation. In other words, the profile edges of the first transmission member 40 and the second transmission member 50 can contact the contact portion 34 of the moving structure 3, so that the contact portion 34 of the moving structure 3 can be moved under the pushing action of the profile edges of the rotating member 2 during the transmission of the first transmission member 40 and the second transmission member 50, so as to realize the movement of the moving structure 3 in the first direction.

[0177] The present disclosure does not limit the specific structure of the moving structure 3, as long as the moving structure 3 can cooperate with the first transmission member 40 or the second transmission member 50 and can move in the first direction under the action of the first transmission member 40 or the second transmission member 50. As an embodiment of the present disclosure, as shown in Figures 11 to 14 The moving structure 3 includes a moving frame 31, and the moving frame 31 has a contact portion 34, which includes an upper contact member 311 and a lower contact member 312. The upper contact member 311 and the lower contact member 312 are oppositely arranged in the first direction, and the first transmission member 40 and the second transmission member 50 are located between the upper contact member 311 and the lower contact member 312, so that the first transmission member 40 and the second transmission member 50 can push the upper contact member 311 or the lower contact member 312 during rotation.

[0178] Since the contact part 34 arranged on the moving frame 31 comprises the upper contact piece 311 and the lower contact piece 312 arranged oppositely along the first direction, and the first transmission part 40 or the second transmission part 50 can push the upper contact piece 311 or the lower contact piece 312 during rotation, in other words, during rotation of the first transmission part 40 or the second transmission part 50, the profile edge of the first transmission part 40 or the second transmission part 50 can at least contact one of the upper contact piece 311 and the lower contact piece 312, thus even if the first transmission part 40 or the second transmission part 50 rotates towards one direction all the time, the upper contact piece 311 and / or the lower contact piece 312 can contact the profile edge of the first transmission part 40 or the second transmission part 50, thereby realizing the reciprocating movement of the moving structure 3 along the first direction.

[0179] Optionally, as shown in Figures 11 to 14 the upper contact piece 311 comprises the first upper contact part 3111 and the second upper contact part 3112, the lower contact piece 312 comprises the first lower contact part 3121 and the second lower contact part 3122, the first transmission part 40 is located between the first upper contact part 3111 and the first lower contact part 3121, and the first transmission part 40 can push the first upper contact part 3111 or the first lower contact part 3121 during rotation, the second transmission part 50 is located between the second upper contact part 3112 and the second lower contact part 3122, and the second transmission part 50 can push the second upper contact part 3112 and the second lower contact part 3122 during rotation, and the distance from the first upper contact part 3111 to the first lower contact part 3121 is different from the distance from the second upper contact part 3112 to the second lower contact part 3122 in the first direction.

[0180] Since the distance from the first upper contact part 3111 to the first lower contact part 3121 is different from the distance from the second upper contact part 3112 to the second lower contact part 3122 in the first direction, it can be understood that the first upper contact part 3111 and the first lower contact part 3121 are adapted to the first transmission part 40, the second upper contact part 3112 and the second lower contact part 3122 are adapted to the second transmission part 50, the first upper contact part 3111 and the first lower contact part 3121 can cooperate with the first transmission part 40, and the second upper contact part 3112 and the second lower contact part 3122 can cooperate with the second transmission part 50, thereby enabling the moving structure 3 to move along the first direction under the action of the first transmission part 40 or the second transmission part 50.

[0181] The specific structure of the first upper contact part 3111, the first lower contact part 3121, the second upper contact part 3112, and the second lower contact part 3122 is not limited in the present disclosure, and as an embodiment of the present disclosure, the shock absorber 100 is as shown in Figures 11 to 14As shown, the upper contact 311 comprises a first body 3113 and a first protrusion 3114 arranged on the first body 3113, the first protrusion 3114 protrudes from the first body 3113, the lower contact 312 comprises a second body 3123 and a second protrusion 3124 arranged on the second body 3123, the second protrusion 3124 protrudes from the second body 3123, the first protrusion 3114 and the second protrusion 3124 are oppositely arranged along the first direction and protrude towards each other, the first body 3113 is the first upper contact part 3111, the first protrusion 3114 is the second upper contact part 3112, the second body 3123 is the first lower contact part 3121, and the second protrusion 3124 is the second lower contact part 3122.

[0182] Here, it should be noted that the first protrusion 3114 and the second protrusion 3124 protrude towards each other means that the first protrusion 3114 protrudes towards the direction close to the second protrusion 3124, and the second protrusion 3124 protrudes towards the direction close to the first protrusion 3114.

[0183] The first transmission member 40 can push the first body 3113 or the second body 3123 during rotation, and the second transmission member 50 can push the first protrusion 3114 or the second protrusion 3124 during rotation. Thus, the moving frame 31 is pushed to move along the first direction.

[0184] In order to improve the versatility of the moving frame 31, optionally, Figures 11 to 14 As shown, the first protrusion 3114 is detachably mounted on the first body 3113, and the second protrusion 3124 is detachably mounted on the second body 3123. In other words, the first protrusion 3114 and the second protrusion 3124 are both detachably mounted on the moving frame 31. Thus, if the first protrusion 3114 and / or the second protrusion 3124 is damaged, the operator can directly replace the new first protrusion 3114 and / or the second protrusion 3124 without replacing the entire moving frame 31, and the use cost of the moving frame 31 is relatively low. In addition, the operator can replace the first transmission member 40 of different sizes and / or shapes, and replace the first protrusion 3114 and the second protrusion 3124 of different sizes, so that the shock absorber 100 has different damping capacity, and the versatility of the shock absorber 100 is better.

[0185] In order to avoid the mutual collision between the first transmission member 40, the first upper contact portion 3111 and the first lower contact portion 3121 which are always in contact with each other during the rotation, and the mutual collision between the second transmission member 50, the second upper contact portion 3112 and the second lower contact portion 3122 which are always in contact with each other during the rotation, optionally, the first transmission member 40 is configured to enable the profile edge (i.e. the outer circumferential surface) of the first transmission member 40 to always keep in contact with the first body 3113 and the second body 3123 during the rotation, and the second transmission member 50 is configured to enable the profile edge of the second transmission member 50 to always keep in contact with the first protrusion 3114 and the second protrusion 3124 during the rotation.

[0186] In other words, the first transmission member 40 can always keep in contact with the first upper contact portion 3111 and the first lower contact portion 3121, and the second transmission member 50 can always keep in contact with the second upper contact portion 3112 and the second lower contact portion 3122 during the rotation. In this way, the mutual collision between the first transmission member 40, the first upper contact portion 3111 and the first lower contact portion 3121 which are always in contact with each other during the rotation, and the mutual collision between the second transmission member 50, the second upper contact portion 3112 and the second lower contact portion 3122 which are always in contact with each other during the rotation can be avoided, and the shock absorber 100 itself will not vibrate, which on the one hand improves the shock absorption effect of the shock absorber 100, and on the other hand, also avoids the mutual collision between the first transmission member 40, the first upper contact portion 3111 and the first lower contact portion 3121, and / or the mutual collision between the second transmission member 50, the second upper contact portion 3112 and the second lower contact portion 3122, which leads to the situation that one or more of the first transmission member 40, the first body 3113, the second body 3123, the second transmission member 50, the first protrusion 3114 and the second protrusion 3124 are easily damaged.

[0187] Optionally, in the first direction, the first upper contact portion 3111 and the first lower contact portion 3121 have a first distance therebetween, and the contact point of the first transmission member 40 with the first upper contact portion 3111 and the contact point of the first transmission member 40 with the first lower contact portion 3121 have a second distance therebetween, and the first distance is equal to the second distance.

[0188] In other words, the distance between the two contact points where the first transmission member 40 contacts the first upper contact portion 3111 and the first lower contact portion 3121 respectively is equal to the distance between the first upper contact portion 3111 and the first lower contact portion 3121, so that by reasonably designing the shape of the first transmission member 40, the profile edge of the first transmission member 40 can always be in contact with the first upper contact portion 3111 and the first lower contact portion 3121 during rotation, and no collision occurs between the first transmission member 40, the first upper contact portion 3111 and the first lower contact portion 3121, and the shock absorber 100 itself does not vibrate, on the one hand, improving the damping effect of the shock absorber 100, on the other hand, also avoiding the mutual collision between the first transmission member 40, the first upper contact portion 3111 and the first lower contact portion 3121, so that one or more of the first transmission member 40, the first upper contact portion 3111 and the first lower contact portion 3121 are easily damaged.

[0189] Optionally, in the first direction, the second upper contact portion 3112 and the second lower contact portion 3122 have a third distance therebetween, the second transmission member 50 has a fourth distance between the contact point with the second upper contact portion 3112 and the contact point with the first lower contact portion 3121, and the third distance is equal to the fourth distance.

[0190] In other words, the distance between the two contact points where the second transmission member 50 contacts the second upper contact portion 3112 and the second lower contact portion 3122 respectively is equal to the distance between the second upper contact portion 3112 and the second lower contact portion 3122, so that by reasonably designing the shape of the second transmission member 50, the profile edge of the second transmission member 50 can always be in contact with the second upper contact portion 3112 and the second lower contact portion 3122 during rotation, and no collision occurs between the second transmission member 50, the second upper contact portion 3112 and the second lower contact portion 3122, and the shock absorber 100 itself does not vibrate, on the one hand, improving the damping effect of the shock absorber 100, on the other hand, also avoiding the mutual collision between the second transmission member 50, the second upper contact portion 3112 and the second lower contact portion 3122, so that one or more of the second transmission member 50, the second upper contact portion 3112 and the second lower contact portion 3122 are easily damaged.

[0191] Here, the specific type of the first transmission member 40 and the second transmission member 50 is not limited by the present disclosure, and as an embodiment of the present disclosure, the first transmission member 40 and / or the second transmission member 50 is a cam 21, and the cross section of the cam 21 is a Lai Lodo polygon.

[0192] Since the Leno polygon has the same width in any direction, by properly setting the distance between the first body 3113 and the second body 3123 arranged oppositely along the first direction and the distance between the first protrusion 3114 and the second protrusion 3124 arranged oppositely along the first direction, the first transmission member 40 of the cam 21 with the cross section formed as the Leno polygon can always be in contact with the first body 3113 and the second body 3123, and / or the second transmission member 50 of the cam 21 with the cross section formed as the Leno polygon can always be in contact with the first protrusion 3114 and the second protrusion 3124.

[0193] The number of sides of the Leno polygon is not limited in the present disclosure, and optionally, the cross section of the cam 21 is formed as a Leno triangle.

[0194] In order to facilitate the connection of the shock absorber 100 and the component to be damped, as an embodiment of the present disclosure, as shown in Figure 14 The moving structure 3 further includes a moving shaft 33, the first end of the moving shaft 33 is connected with the moving frame 31, and the second end of the moving shaft 33 is used to be connected with the component to be damped. In other words, the moving structure 3 of the shock absorber 100 is connected with the component to be damped through the moving shaft 33, and the shock absorber 100 can have the damping effect on the component to be damped.

[0195] In order to further improve the damping effect of the shock absorber 100, optionally, as shown in Figure 11 The shock absorber 100 further includes an elastic member 4, and the elastic member 4 is sleeved on the moving shaft 33.

[0196] Since the elastic member 4 is sleeved on the moving shaft 33, the elastic member 4 can absorb the impact caused by the vibration, thereby improving the damping effect of the shock absorber 100.

[0197] For example, when the shock absorber 100 is applied to the damping of a vehicle, the elastic member 4 can absorb the impact of the road surface, thereby improving the damping effect of the shock absorber 100.

[0198] It should be noted that the specific type of the elastic member 4 is not limited in the present disclosure, and as an embodiment of the present disclosure, the above-mentioned elastic member 4 is a spring, and as another embodiment, the above-mentioned elastic member 4 can also be an elastic sleeve and the like.

[0199] Optionally, the shock absorber 100 further includes a housing 30, and at least part of the moving structure 3 is arranged in the housing 30 and guided by the inner wall of the housing 30. The inner wall of the housing 30 can guide the movement of at least part of the moving structure 3, so as to avoid the movement of the moving structure 3 with the rotating member 2, and the shock absorber 100 cannot damp the vibration.

[0200] The specific type of the first transmission member 40 is not limited in the present disclosure. As an embodiment of the present disclosure, the first transmission member 40 can be configured as a first cam 404. As another embodiment of the present disclosure, the first transmission member 40 can be configured as a first disc.

[0201] For the embodiment in which the first transmission member 40 is configured as a first disc, in order to make the distance between the profile edge of the first transmission member 40 and the rotation center of the first transmission member 40 in the first direction constantly change during the rotation of the first transmission member 40, the rotation center of the first disc is optionally eccentrically arranged relative to the center of the first disc. In other words, the rotation center of the first disc does not coincide with the center of the first disc, so that the distance between the rotation center of the first disc and the profile edge of the first disc in the first direction constantly changes during the rotation of the first disc, thereby enabling the movement structure 3 to be driven to move in the first direction.

[0202] For the embodiment in which the first transmission member 40 is configured as a first cam 404, in order to improve the shock absorption range of the shock absorber 100, the rotation center of the first cam 404 is optionally eccentrically arranged relative to the center of the base circle of the first cam 404 and / or the geometric center of the first cam 404. Since the rotation center of the first cam 404 is eccentrically arranged relative to the base circle of the first cam 404 and / or the geometric center of the first cam 404, the difference between the maximum value and the minimum value of the distance between the rotation center of the first cam 404 and the profile edge of the first cam 404 in the first direction during the rotation of the first cam 404 increases, in other words, the eccentrically arranged first cam 404 has a larger stroke and a smaller return stroke, so that the first cam 404 can drive the movement structure 3 to move a larger distance in the first direction during the rotation of the first cam 404, and the shock absorber 100 can have a larger shock absorption range.

[0203] The specific type of the second transmission member 50 is not limited in the present disclosure. As an embodiment of the present disclosure, the second transmission member 50 can be configured as a second cam 504. As another embodiment of the present disclosure, the second transmission member 50 can be configured as a second disc.

[0204] For the embodiment in which the second transmission member 50 is configured as a second disc, in order to make the distance between the profile edge of the second transmission member 50 and the rotation center of the second transmission member 50 in the second direction constantly change during the rotation of the second transmission member 50, the rotation center of the second disc is optionally eccentrically arranged relative to the center of the second disc. In other words, the rotation center of the second disc does not coincide with the center of the second disc, so that the distance between the rotation center of the second disc and the profile edge of the second disc in the second direction constantly changes during the rotation of the second disc, thereby enabling the movement structure 3 to be driven to move in the second direction.

[0205] For the embodiment that the second transmission member 50 is configured as the second cam 504, in order to improve the damping range of the shock absorber 100, optionally, the rotation center of the second cam 504 is arranged eccentrically relative to the center of the base circle of the second cam 504 and / or the geometric center of the second cam 504. Since the rotation center of the second cam 504 is arranged eccentrically relative to the base circle of the second cam 504 and / or the geometric center of the second cam 504, during rotation of the second cam 504, the difference between the maximum value and the minimum value of the distance between the rotation center of the second cam 504 and the profile edge of the second cam 504 in the second direction is increased, in other words, the second cam 504 arranged eccentrically has a larger push stroke and a smaller return stroke. In this way, during rotation of the second cam 504, the second cam 504 can drive the moving structure 3 to move in the second direction by a larger distance, and the shock absorber 100 can have a larger damping range.

[0206] In summary, compared with the hydraulic shock absorber in the related art, the shock absorber 100 provided by the present disclosure has a simpler structure, a lower cost, and a smaller overall mass, and does not increase the overall weight of the vehicle.

[0207] Since the shock absorber 100 is a mechanical transmission structure, compared with the electromagnetic valve type shock absorber, the shock absorber 100 of the present disclosure has a faster response speed and higher reliability due to the absence of electromagnetic induction related structures and the induction process of electromagnetic induction.

[0208] In addition, compared with the magnetorheological type shock absorber in the related art, the shock absorber 100 of the present disclosure does not have the problems of durability, weather resistance, and adaptability due to the absence of damping medium, and the shock absorber 100 of the present disclosure can be applied to various complex environments.

[0209] The present disclosure also provides a vehicle suspension comprising the shock absorber 100 as described above.

[0210] The vehicle suspension has all the beneficial effects of the shock absorber 100 described above, which will not be repeated here.

[0211] The present disclosure also provides a vehicle comprising the vehicle suspension as described above.

[0212] The vehicle has all the beneficial effects of the vehicle suspension described above, which will not be repeated here.

[0213] In order to realize the damping of the vehicle, optionally, the vehicle comprises a vehicle body and a wheel, the shock absorber 100 comprises a shock absorber mounting seat 7, the shock absorber mounting seat 7 is mounted on the vehicle body, and the moving structure 3 of the shock absorber 100 is connected with the wheel. In other words, the shock absorber 100 is mounted on the vehicle body of the vehicle through the shock absorber mounting seat 7, so that, in the process of driving the vehicle, if the vehicle is impacted by the road surface.

[0214] It should be noted that the type of the vehicle is not limited in the present disclosure, and it can be any vehicle suitable for adopting the power assembly. For example, the vehicle can be a car, a truck, a van, etc., and can be a pure electric vehicle, a hybrid vehicle (a range extended vehicle), etc., and the present disclosure is not limited thereto.

[0215] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.

[0216] In addition, it should be noted that each specific technical feature described in the above-described specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present disclosure will not further describe various possible combination manners.

[0217] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not deviate from the idea of the present disclosure, and it should also be considered as the disclosed content of the present disclosure.

Claims

1. A shock absorber, characterized in that, The device includes a first transmission component, a second transmission component, and a movable structure. The movable structure is adapted to be connected to the component to be damped. Both the first and second transmission components are adapted to be connected to a driving component. The movable structure can selectively be connected to the driving component via the first or second transmission component, so that the movable structure can move in a first direction under the action of the first or second transmission component. The range of movement of the movable structure under the action of the first transmission member is different from the range of movement of the movable structure under the action of the second transmission member.

2. The shock absorber according to claim 1, characterized in that, The size and / or shape of the first transmission component is different from that of the second transmission component.

3. The shock absorber according to claim 1, characterized in that, The first transmission member is rotatable and drives the moving structure to move in the first direction; the second transmission member is rotatable and drives the moving structure to move in the first direction. The maximum distance from the rotation center of the first transmission member to the outline edge of the first transmission member is different from the maximum distance from the rotation center of the second transmission member to the outline edge of the second transmission member, and / or, the minimum distance from the rotation center of the first transmission member to the outline edge of the first transmission member is different from the minimum distance from the rotation center of the second transmission member to the outline edge of the second transmission member.

4. The shock absorber according to claim 1, characterized in that, Both the first transmission member and the second transmission member are capable of driving the moving structure to reciprocate in the first direction when rotating in a rotational direction.

5. The shock absorber according to claim 1, characterized in that, The shock absorber further includes a transmission engagement mechanism adapted to be connected to the drive member. The transmission engagement mechanism can selectively connect to the first drive member or the second drive member to transmit the power of the drive member to the first drive member or the second drive member.

6. The shock absorber according to claim 5, characterized in that, The shock absorber also includes a rotating shaft adapted to be connected to the driving member. The first and second driving members are both loosely fitted on the rotating shaft. The transmission engagement mechanism can selectively connect the first or the second driving member to the rotating shaft so that the rotating shaft can drive the first or the second driving member to rotate.

7. The shock absorber according to claim 6, characterized in that, The transmission engagement mechanism includes a first engagement member and an actuator. The first engagement member is connected to the rotating shaft. The first engagement member has a first engagement portion, and the second engagement member has a second engagement portion. The actuator is used to drive the first engagement member to move so that the first engagement member engages with the first engagement portion or the second engagement portion.

8. The shock absorber according to claim 7, characterized in that, The first engaging member is a gear disposed on the rotating shaft. The first transmission member has a first through hole, and the second transmission member has a second through hole. Both the first through hole and the second through hole can allow the rotating shaft to pass through. The first engaging part is a first tooth disposed on the hole wall of the first through hole, and the second engaging part is a second tooth disposed on the hole wall of the second through hole. Both the first tooth and the second tooth can mesh with the gear.

9. The shock absorber according to claim 7, characterized in that, The first engaging member is a friction disc disposed on the rotating shaft, the first engaging part is a first friction part disposed on the first transmission member, and the second engaging part is a second friction part disposed on the second transmission member. Both the first friction part and the second friction part can make transmission contact with the friction disc.

10. The shock absorber according to any one of claims 7-9, characterized in that, The first coupling member is circumferentially locked and axially movably sleeved on the rotating shaft; the actuator is connected to the first coupling member and is used to drive the first coupling member to move on the rotating shaft; or... The first coupling is fixedly mounted on the rotating shaft, and the actuator is connected to the rotating shaft and used to drive the rotating shaft to move, thereby moving the first coupling; or, The first coupling is fixedly mounted on the rotating shaft, and the actuator is connected to the drive and is used to drive the drive to move, thereby moving the rotating shaft and the first coupling.

11. The shock absorber according to any one of claims 1-9, characterized in that, The movable structure has a contact portion adapted to contact the first transmission member and the second transmission member, so that the first transmission member and the second transmission member can push the movable structure through the contact portion during rotation.

12. The shock absorber according to claim 11, characterized in that, The movable structure includes a movable frame having the contact portion, which includes an upper contact member and a lower contact member. The upper contact member and the lower contact member are disposed opposite to each other along the first direction. The first transmission member and the second transmission member are both located between the upper contact member and the lower contact member, so that the first transmission member and the second transmission member can push the upper contact member or the lower contact member during rotation.

13. The shock absorber according to claim 12, characterized in that, The upper contact member includes a first upper contact portion and a second upper contact portion, and the lower contact member includes a first lower contact portion and a second lower contact portion; The first transmission member is located between the first upper contact portion and the first lower contact portion, and the first transmission member can push the first upper contact portion or the first lower contact portion during rotation. The second transmission member is located between the second upper contact portion and the second lower contact portion, and the second transmission member can push the second upper contact portion and the second lower contact portion during rotation. In the first direction, the distance from the first upper contact portion to the first lower contact portion is different from the distance from the second upper contact portion to the second lower contact portion.

14. The shock absorber according to claim 13, characterized in that, The upper contact member includes a first body and a first protrusion disposed on the first body, the first protrusion protruding from the first body; The lower contact member includes a second body and a second protrusion disposed on the second body, the second protrusion protruding from the second body; The first protrusion and the second protrusion are disposed opposite to each other along the first direction and protrude towards each other; The first body is the first upper contact portion, the first protrusion is the second upper contact portion, the second body is the first lower contact portion, and the second protrusion is the second lower contact portion.

15. The shock absorber according to claim 14, characterized in that, The first protrusion is detachably mounted on the first body, and the second protrusion is detachably mounted on the second body.

16. The shock absorber according to claim 13, characterized in that, The first transmission member is configured such that its outer peripheral surface remains in contact with the first upper contact portion and the first lower contact portion during rotation, and the second transmission member is configured such that its outer peripheral surface remains in contact with the second upper contact portion and the second lower contact portion during rotation.

17. The shock absorber according to claim 13, characterized in that, In the first direction, there is a first distance between the first upper contact portion and the first lower contact portion, and there is a second distance between the contact point between the first transmission member and the first upper contact portion and the contact point between the first transmission member and the first lower contact portion, wherein the first distance is equal to the second distance; In the first direction, there is a third distance between the second upper contact portion and the second lower contact portion, and a fourth distance between the contact point of the second transmission member and the second upper contact portion and the contact point of the first transmission member and the first lower contact portion, wherein the third distance is equal to the fourth distance.

18. The shock absorber according to claim 16, characterized in that, The first transmission component and / or the second transmission component is a cam, and the cross-section of the cam is a Reichstag polygon.

19. The shock absorber according to claim 18, characterized in that, The cross-section of the cam is formed in the shape of a Reichstag triangle.

20. The shock absorber according to claim 12, characterized in that, The movable structure also includes a movable shaft, the first end of which is connected to the movable frame, and the second end of which is used to connect to the component to be damped.

21. The shock absorber according to any one of claims 1-9, characterized in that, The shock absorber also includes a housing, and at least a portion of the movable structure is disposed within the housing and guides and engages with the inner wall of the housing.

22. The shock absorber according to any one of claims 1-9, characterized in that, The first transmission component is a first cam or a first disk; and / or, The second transmission component is a second cam or a second disc.

23. The shock absorber according to any one of claims 1-9, characterized in that, The first transmission component is a first cam, and the rotation center of the first cam is offset relative to the center of the base circle of the first cam and / or the geometric center of the first cam; or, The first transmission component is a first disc, and the rotation center of the first disc is set off-center from the center of the first disc.

24. The shock absorber according to any one of claims 1-9, characterized in that, The second transmission component is a second cam, the rotation center of which is eccentrically located relative to the center of the base circle of the second cam and / or the geometric center of the second cam; or, The second transmission component is a second disc, and the rotation center of the second disc is set off-center from the center of the second disc.

25. The shock absorber according to any one of claims 1-9, characterized in that, The shock absorber also includes the drive component.

26. A vehicle suspension, characterized in that, The shock absorber includes any one of claims 1-25.

27. A vehicle, characterized in that, Including the vehicle suspension as described in claim 26.

28. The vehicle according to claim 27, characterized in that, The vehicle also includes a body and wheels, the shock absorber includes a shock absorber mounting base, the shock absorber mounting base is mounted on the body, and the moving structure of the shock absorber is connected to the wheels.

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