Coupling assembly, damping system and operation machine

Abstract

The utility model relates to the technical field of coupling devices, in particular to a coupling assembly, a damping system and an operation machine. The coupling assembly provided by the utility model is used for transmission connection of a first shaft piece and a second shaft piece, and comprises a first connecting piece provided with a first connecting part used for transmission connection with the first shaft piece, and a second connecting piece provided with a second connecting part used for transmission connection with the second shaft piece; the second connecting piece is provided with a second connecting part used for being in transmission connection with the second shaft piece; wherein the first connecting piece and the second connecting piece are connected in a swinging manner. According to the coupling assembly, the damping system and the operation machine, the problem that vibration borne by the driving mechanism is large can be solved or improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coupling devices, in particular to a coupling assembly, a shock absorption system and a working machine. Background Art

[0002] A road roller includes a vibration drive mechanism and an eccentric shaft. The vibration drive mechanism is connected to the eccentric shaft through a coupling. The working principle of the road roller is that the vibration drive mechanism drives the eccentric shaft to rotate, thereby causing vibration, and the vibration is transmitted to the road surface through the vibration wheel to compact the road. The vibration drive mechanism usually adopts a vibration motor or a vibration motor.

[0003] In the prior art, since the vibration drive mechanism of the road roller is connected to the eccentric shaft through a coupling, the vibration is transmitted to the vibration drive mechanism, resulting in a relatively large vibration acceleration of the vibration drive mechanism, which is likely to cause failures.

[0004] Therefore, how to solve or improve the problem of large vibration of the vibration drive mechanism of the road roller in the prior art has become an important technical problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] In view of this, the utility model provides a coupling assembly, a shock absorption system and a working machine to solve or improve the problem of large vibration of the drive mechanism.

[0006] In a first aspect, the utility model provides a coupling assembly for drivingly connecting a first shaft member and a second shaft member, comprising:

[0007] A first connecting member provided with a first connecting portion for drivingly connecting with the first shaft member;

[0008] A second connecting member provided with a second connecting portion for drivingly connecting with the second shaft member; wherein,

[0009] The first connecting member and the second connecting member are swingably connected.

[0010] Advantageous Effects:

[0011] The coupling assembly provided by the present utility model is used to connect a first shaft member and a second shaft member. For example, the first shaft member can be the output shaft of a vibration driving mechanism of a road roller, and the second shaft member is the eccentric shaft of the road roller. The coupling assembly is connected between the output shaft of the vibration driving mechanism of the road roller and the eccentric shaft. When there is vibration in any radial direction along the output shaft of the vibration driving mechanism, since the first connecting member and the second connecting member of the coupling assembly can swing relative to each other, the first connecting member and the second connecting member can play a role in buffering the radial vibration through relative swinging. It should be noted that during the transmission process between the first shaft member and the second shaft member, the first connecting member and the second connecting member are relatively fixed in the circumferential direction to avoid affecting the normal transmission between the first shaft member and the second shaft member. In addition, the coupling assembly provided by the present utility model can also be applied to the connection between other shaft components to play a role in buffering vibration.

[0012] In an alternative embodiment, it further includes: a first support body connected between the first connecting member and the second connecting member. The first connecting member is swingably connected to the first support body around a first axis, and the second connecting member is swingably connected to the first support body around a second axis.

[0013] Beneficial effects:

[0014] The first support body plays a role in supporting and connecting, and at the same time enables the first connecting member and the second connecting member to swing around different axes respectively to slow down the vibration in any radial direction. Specifically, the first axis and the second axis can be consistent with the radial direction of the first shaft member or the second shaft member, and the first axis and the second axis can be perpendicular to each other, thus forming a "cross shaft" structure. When the first connecting member and the second connecting member generate relative swinging in any direction, they can be decomposed into swinging around the first axis and the second axis to better slow down the vibration in any radial direction.

[0015] In an alternative embodiment, the first support body is provided as an elastic body.

[0016] Beneficial effects:

[0017] The first support body is provided as an elastic body, that is, the first support body is provided as a structure with certain elasticity. When subjected to radial vibration, the elastic body can generate corresponding elastic deformation to better buffer the radial vibration. Moreover, when subjected to circumferential torsional vibration, the elastic body can also play a buffering role through its circumferential elastic deformation.

[0018] In an alternative embodiment, the first connecting member is provided as a first articulated fork, the second connecting member is provided as a second articulated fork, and the fork arms of the first articulated fork and the fork arms of the second articulated fork intersect with each other; the first support is provided as an annular structure and is disposed within the space enclosed by the first articulated fork and the second articulated fork; the first support is respectively connected to each fork arm of the first articulated fork and the second articulated fork by a pin shaft.

[0019] In an alternative embodiment, the first connecting portion and / or the second connecting portion is provided with a connecting hole, and the side wall of the connecting hole is provided with a through slit, the size of the through slit is adjustable so that the aperture size of the connecting hole is adjustable.

[0020] In a second aspect, the present utility model provides a shock absorption system, including a driving mechanism, a transmission shaft, and a first shock absorption assembly, and the output shaft of the driving mechanism and the transmission shaft are drivingly connected through the first shock absorption assembly; wherein,

[0021] The first shock absorption assembly is the coupling assembly described in any one of the above, the output shaft of the driving mechanism is connected to the first connecting portion of the first connecting member, and the second connecting portion of the second connecting member is drivingly connected to the transmission shaft.

[0022] Beneficial effects: The driving mechanism is power-connected to the transmission shaft through the first shock absorption assembly. The first shock absorption assembly is the coupling assembly described above. The vibration of the transmission shaft is conducted to the driving mechanism after being attenuated by the first shock absorption assembly, and the vibration can be effectively attenuated.

[0023] In an alternative embodiment, it further includes:

[0024] A second shock absorption assembly, disposed between the second connecting member and the transmission shaft, the second shock absorption assembly includes a first sliding member and a second sliding member, the first sliding member and the second sliding member are slidably matched along the axial direction of the output shaft, the first sliding member is connected to the second connecting member, and the second sliding member is drivingly connected to the transmission shaft.

[0025] Beneficial effects:

[0026] The driving mechanism is connected to the transmission shaft through the first shock absorbing assembly and the second shock absorbing assembly, thereby driving the transmission shaft to rotate. When there is vibration along any radial direction of the output shaft of the driving mechanism, the first connecting member and the second connecting member of the first shock absorbing assembly can swing relative to each other, thereby playing a role in buffering radial vibration. When there is axial movement along the output shaft of the driving mechanism, the first sliding member and the second sliding member of the second shock absorbing assembly can produce adaptive axial sliding, thereby being able to buffer the axial movement. It should be noted that the relative rotation of the first sliding member and the second sliding member in the circumferential direction is constrained so that the output shaft of the driving mechanism can normally drive the transmission shaft to rotate. With such an arrangement, the shock absorbing system provided by the utility model can buffer vibrations in all directions, so that the vibration borne by the vibration driving mechanism is effectively reduced.

[0027] In an optional embodiment, it also includes: a third shock absorbing assembly, which is arranged between the second shock absorbing assembly and the transmission shaft, and the third shock absorbing assembly includes a third connecting member and a fourth connecting member; the third connecting member is connected to the second sliding member, the third connecting member and the fourth connecting member are swingably connected, and the fourth connecting member is connected to the transmission shaft.

[0028] Beneficial effects:

[0029] The output shaft of the driving mechanism is connected to the transmission shaft through the first shock absorbing assembly, the second shock absorbing assembly, and the third shock absorbing assembly in sequence, and drives the transmission shaft to rotate. The third shock absorbing assembly has a similar structure to the first shock absorbing assembly, and can further buffer radial vibration and torque, thereby further improving the shock absorbing effect of the shock absorbing system.

[0030] In an optional embodiment, the third shock absorbing assembly further includes a second support body, the third connecting member is swingably connected to the second support body around a third axis; the fourth connecting member is swingably connected to the second support body around a fourth axis;

[0031] The second support body is configured as an elastic body;

[0032] The third connecting member is configured as a third yoke, the fourth connecting member is configured as a fourth yoke, and the third yoke and the fourth yoke intersect with each other; the second supporting body is configured as an annular structure, and is disposed in a space enclosed by the third yoke and the fourth yoke; the second supporting body is connected to each fork arm of the third yoke and the fourth yoke through a pin shaft respectively.

[0033] Thirdly, the present utility model further provides a working machine, including the coupling assembly described in any one of the above or the shock absorption system described in any one of the above. The working machine includes a roller. Since the working machine provided in this embodiment includes the coupling assembly described in any one of the above or the shock absorption system described in any one of the above, therefore, the working machine provided in this embodiment can effectively improve the shock absorption effect on the vibration driving mechanism. The derivation process of this beneficial effect is generally similar to that of the above-mentioned coupling assembly or shock absorption system, and will not be elaborated here. Description of the Drawings

[0034] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 Structural schematic diagram of the coupling assembly (first shock absorption assembly) of the embodiment of the present utility model;

[0036] Figure 2 Assembly schematic diagram of the first shock absorption assembly, the second shock absorption assembly, and the third shock absorption assembly of the embodiment of the present utility model;

[0037] Figure 3 Structural schematic diagram of the shock absorption system of the embodiment of the present utility model.

[0038] Description of the reference numerals:

[0039] 1. First shock absorption assembly; 11. First connecting member; 111. Connecting hole; 112. Through slot; 113. Adjusting bolt; 12. Second connecting member; 13. First support body; 14. Pin hole; 15. Pin shaft; 2. Second shock absorption assembly; 21. First sliding member; 22. Second sliding member; 3. Third shock absorption assembly; 31. Third connecting member; 32. Fourth connecting member; 4. Driving mechanism; 5. Transmission shaft; 6. Fixed plate; 7. Fork foot component; 8. First shock absorption pad; 9. Support plate. Detailed Embodiments

[0040] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0041] In the related art, the connection between shafts is usually achieved by a coupling. The coupling is a rigid component and is prone to conducting vibrations. For example, the vibration drive mechanism of a road roller is connected to its eccentric shaft through a coupling to drive the eccentric shaft, thereby meeting the vibration requirements during the operation of the road roller. However, the vibrations generated during the operation of the road roller will be conducted back to the vibration drive mechanism, resulting in the problem that the vibration drive mechanism is prone to failure.

[0042] In view of this, as Figure 1 shown, this embodiment provides a coupling assembly for drivingly connecting a first shaft member and a second shaft member. As an example, the first shaft member can be the output shaft of the vibration drive mechanism of a road roller, and the second shaft member can be the eccentric shaft of the road roller. Of course, in other embodiments, the first shaft member and the second shaft member can also be other shaft components.

[0043] In this embodiment, the coupling assembly includes a first connecting member 11 and a second connecting member 12.

[0044] Among them, the first connecting member 11 is provided with a first connecting portion for drivingly connecting with the first shaft member, and the second connecting member 12 is provided with a second connecting portion for drivingly connecting with the second shaft member. In some embodiments, the first connecting portion and the second connecting portion can be provided with connecting holes 111, and the shaft component is connected to the connecting holes 111 through spline connection. Of course, in other embodiments, the first connecting portion and the second connecting portion can also be connected to the shaft component in other ways, such as by clamping, flange connection, etc.

[0045] Among them, the first connecting member 11 and the second connecting member 12 are swingably connected. When there is vibration in any radial direction along the output shaft of the vibration drive mechanism, due to the relative swingability of the first connecting member 11 and the second connecting member 12 of the coupling assembly, the first connecting member 11 and the second connecting member 12 can play a role in buffering the radial vibration through relative swing. It should be noted that during the transmission process, the first connecting member 11 and the second connecting member 12 are relatively fixed in the circumferential direction to avoid affecting normal transmission. In addition, the coupling assembly provided in this embodiment can also be applied to the connection between other shaft components to play a role in buffering vibrations.

[0046] In an alternative embodiment, the coupling assembly further includes a first support body 13. The first support body 13 is connected between the first connecting member 11 and the second connecting member 12. The first connecting member 11 and the first support body 13 are swingably connected around a first axis, and the second connecting member 12 and the first support body 13 are swingably connected around a second axis.

[0047] The first support body 13 can play a role in supporting and connecting, and at the same time enable the first connecting member 11 and the second connecting member 12 to swing around different axis lines respectively, so as to reduce the vibration in any radial direction. Specifically, the first axis line and the second axis line are non-parallel, and the first axis line and the second axis line can be consistent with the radial direction of the first shaft member or the second shaft member. For example, the first axis line and the second axis line can be specifically perpendicular to each other, thus forming a "cross shaft" connection structure. When the first connecting member 11 and the second connecting member 12 swing relatively in any direction, they can be decomposed into swings around the first axis line and the second axis line, so as to better reduce the vibration in any radial direction.

[0048] In a further embodiment, the first support body 13 is arranged as an elastic structure, that is, the first support body 13 is connected between the first connecting member 11 and the second connecting member 12, and the first support body 13 is adapted to form a radial elastic deformation under the condition of receiving a radial load along the first shaft member or the second shaft member. In this embodiment, the first support body 13 has a certain elasticity in the radial direction, and during the transmission process between the first shaft member and the second shaft member, the first support body 13 plays a role in transmitting torque. Therefore, the first support body 13 has a certain rigidity in the circumferential direction to avoid obvious circumferential torsion during the transmission process and affect the normal transmission.

[0049] The coupling assembly provided in this embodiment can be used to connect the output shaft and the eccentric shaft of the vibration drive mechanism of a roller. With such a setting, the coupling assembly constitutes the first shock-absorbing assembly 1, which can play a role in reducing radial vibration. When there is vibration in any radial direction along the output shaft of the vibration drive mechanism, since the first connecting member 11 and the second connecting member 12 of the first shock-absorbing assembly 1 can swing relatively, and at the same time because the first support body 13 is connected between the two, the first support body 13 can generate a radial elastic deformation, thereby playing a role in buffering the radial vibration.

[0050] In a further embodiment, the first support body 13 is arranged as an annular structure. Along the circumferential direction of the first support body 13, the first connecting member 11 and the second connecting member 12 are respectively connected to the first support body 13 through at least two connection points.

[0051] In this embodiment, the first support body 13 is arranged as an annular structure, which can make it have a certain elasticity in the radial direction and have better rigidity in the circumferential direction, avoiding the problem of obvious circumferential torsion during the transmission process. The first connecting member 11 and the second connecting member 12 are respectively connected to the first support body 13 through at least two connection points, which can make the first support body 13 receive force at multiple points and avoid the problem of connection damage and failure caused by concentrated force during the transmission process. The material of the first support body 13 can be resin, rubber, metal materials with good elasticity, etc.

[0052] In some embodiments, the first connecting member 11 may be configured as a first articulated fork, and the second connecting member 12 may be configured as a second articulated fork. Both the first articulated fork and the second articulated fork are provided with a plurality of fork arms. For example, two, three, etc. may be provided. The fork arms of the first articulated fork and the second articulated fork cross each other, and a certain gap needs to be reserved between the fork arms of the two to enable the first articulated fork and the second articulated fork to rotate relative to each other and avoid mutual interference. The first support 13 is disposed within the space enclosed by the first articulated fork and the second articulated fork, and the first support 13 is respectively connected to each fork arm of the first articulated fork and the second articulated fork.

[0053] In other embodiments, the first connecting member 11 and the second connecting member 12 may also adopt connecting members with other structures. For example, the first connecting member 11 and the second connecting member 12 may also adopt cylindrical members, and both ends of the first support 13 are respectively sleeved and fixed in the inner cavities of the two cylindrical members.

[0054] In some embodiments, the first connecting member 11 may be connected to different positions of the first support 13 through at least two pin shafts 15 respectively. Similarly, the second connecting member 12 may also be connected to the first support 13 through at least two pin shafts 15 respectively.

[0055] Specifically, as Figure 1 shown, the first connecting member 11 and the second connecting member 12 may both be configured as articulated forks with two fork arms. The two fork arms of the first connecting member 11 cross the two fork arms of the second connecting member 12. The first support 13 is configured as an annular structure. The first support 13 is disposed within the space enclosed by the fork arms of the first connecting member 11 and the second connecting member 12. Pin holes 14 are respectively provided on the fork arms of the first connecting member 11 and the second connecting member 12. Pin holes 14 corresponding to the pin holes 14 on the fork arms are also provided on the first support 13. Through the pin shafts 15 inserted into the corresponding pin holes 14, the connection between the first connecting member 11, the second connecting member 12 and the first support 13 is realized, and the four pin shafts 15 are evenly distributed in the circumferential direction. The four pin shafts 15 form a reliable cross-axis connection structure, and the elastic deformation of the first support 13 in any direction will not be interfered.

[0056] To facilitate the connection with the shaft member, as Figure 1 shown, a connection hole 111 may be provided on the first connection portion of the first connecting member 11. A through slit 112 is provided on the side wall of the connection hole 111. The through slit 112 may extend along the axial direction of the first connecting member 11 and penetrate through both axial ends of the first connecting member 11. The size of the through slit 112 is adjustable so that the aperture size of the connection hole 111 is adjustable. To enable the width size of the through slit 112 to be adjustable, an adjusting bolt 113 may be provided on the first connecting member 11. Threaded holes adapted to the adjusting bolt 113 are provided on both sides of the through slit 112. By rotating the adjusting bolt 113, the width size of the through slit 112 can be adjusted.

[0057] The aperture size of the connection hole 111 can be adjusted by the adjusting bolt 113. The shaft member is installed inside the connection hole 111. By adjusting the aperture size of the connection hole 111, shaft members with different diameters can be adapted, and it is convenient to adjust the axial length of the shaft member extending into the connection hole 111.

[0058] With such a setting, the output shaft of the driving mechanism 4 can be conveniently inserted into the connection hole 111 of the first connecting member 11, and the firm connection between the two can be achieved through the adjusting bolt 113. Similarly, the connection hole 111 can also be provided on the second connecting member 12, and the convenient connection between the second connecting member 12 and the first sliding member 21 can be achieved through the adjusting bolt 113. The connection hole 111 can also be provided on the third connecting member 31, and the convenient connection between the third connecting member 31 and the second sliding member 22 can be achieved through the adjusting bolt 113. The connection hole 111 is also provided on the fourth connecting member 32, and the convenient connection between the fourth connecting member 32 and the transmission shaft 5 can be achieved through the adjusting bolt 113.

[0059] The embodiment of the present invention also provides a shock absorption system, including a driving mechanism 4, a transmission shaft 5, and a first shock absorption component 1. The output shaft of the driving mechanism 4 and the transmission shaft 5 are at least connected by the first shock absorption component 1 in a transmission manner; wherein, the first shock absorption component 1 is set as the coupling component described in any one of the above embodiments, and the output shaft of the driving mechanism 4 is connected to the first connection portion of the first connecting member 11.

[0060] In some embodiments, the driving mechanism 4 can be the vibration driving mechanism of a road roller, and the transmission shaft 5 is the eccentric shaft of the road roller. The driving mechanism 4 is power-connected to the transmission shaft 5 through the first shock absorption component 1. The first shock absorption component 1 is the above-mentioned coupling component. The vibration of the transmission shaft 5 is conducted to the driving mechanism 4 after being slowed down by the first shock absorption component 1, and the vibration can be effectively slowed down.

[0061] In a further embodiment, the shock absorption system can include a driving mechanism 4, a first shock absorption component 1, a second shock absorption component 2, and a transmission shaft 5. The driving mechanism 4 is connected to the transmission shaft 5 in a transmission manner through the first shock absorption component 1 and the second shock absorption component 2 in sequence, and the driving mechanism 4 is adapted to drive the transmission shaft 5 to rotate.

[0062] In some embodiments, the drive mechanism 4 is provided as a vibration motor. It should be noted that in the related art, the vibration motor of a fuel roller is connected to a transmission shaft (eccentric shaft) through a coupling. An electric roller borrows the connection structure of the vibration motor and the transmission shaft of a fuel roller and also adopts a structure in which the vibration motor is connected to the transmission shaft through a coupling. However, in this connection structure, vibration is easily transmitted to the vibration motor, which may lead to problems such as damage to components such as electrical components and seals of the vibration motor. The shock absorption system provided in this embodiment is applicable to shock absorption of the vibration motor to avoid problems of damage to the vibration motor caused by vibration. Of course, in other embodiments, the drive mechanism 4 may also adopt a vibration motor, and this shock absorption system is also applicable to fuel rollers.

[0063] As Figure 1 shown, the first shock absorption assembly 1 includes a first connecting member 11, a first support body 13, and a second connecting member 12. The first connecting member 11 is in transmission connection with the output shaft of the drive mechanism 4. Here, "the first connecting member 11 is in transmission connection with the output shaft of the drive mechanism 4" can adopt a structure in which the two are directly connected or an indirectly connected structure. For example, an indirect connection is achieved through a connecting member and a transmission member. The first support body 13 is connected between the first connecting member 11 and the second connecting member 12. The connection structure of the three forms a cross-axis connection structure, so that when any radial vibration is received, the first connecting member 11 and the second connecting member 12 can swing relative to each other, achieving the effect of reducing radial vibration. At the same time, the first support body 13 is adapted to form a radial elastic deformation under the condition of receiving a radial load along the output shaft, that is, when there is vibration along the radial direction of the output shaft of the drive mechanism 4, the first support body 13 can generate corresponding elastic deformation to reduce the vibration in this direction.

[0064] As Figure 2As shown, the second shock absorption assembly 2 includes a first sliding member 21 and a second sliding member 22. The first sliding member 21 and the second sliding member 22 are slidably engaged with each other. The first sliding member 21 is connected to the second connecting member 12, and the second sliding member 22 is drivingly connected to the transmission shaft 5. Among them, the first sliding member 21 and the second sliding member 22 are slidably engaged with each other so that the second connecting member 12 and the transmission shaft 5 can approach or move away from each other relatively. It should be noted that the structure of "the second sliding member 22 is drivingly connected to the transmission shaft 5" can be a structure in which the two are directly connected, or an indirect transmission structure, for example, connected by a transmission member or a connecting member. When there is axial vibration along the output shaft of the drive mechanism 4, the first sliding member 21 and the second sliding member 22 can produce adaptive sliding, thereby reducing the axial vibration transmitted to the drive mechanism 4. In addition, it should be noted that in order to ensure the normal transmission of the second shock absorption assembly 2, the relative rotation of the first sliding member 21 and the second sliding member 22 in the circumferential direction needs to be restricted. Specifically, one of the first sliding member 21 and the second sliding member 22 can be provided with a slide rail extending axially, and the other is provided with a slider cooperating with the slide rail. Under the mutual restraint of the slide rail and the slider, the first sliding member 21 and the second sliding member 22 can only form relative sliding in the axial direction.

[0065] With such a setting, the drive mechanism 4 is drivingly connected to the transmission shaft 5 through the first shock absorption assembly 1 and the second shock absorption assembly 2, and thus can drive the transmission shaft 5 to rotate to achieve the vibration effect of the roller. During the working process of the roller, the vibration will also be transmitted reversely to the drive mechanism 4. When there is vibration in any radial direction along the output shaft of the drive mechanism 4, the first shock absorption assembly 1 plays a role in buffering the radial vibration. When there is torque in the circumferential direction along the output shaft, the first support body 13 can also produce elastic torsional deformation, thereby playing a role in buffering the torque. When there is axial movement along the output shaft of the drive mechanism 4, the first sliding member 21 and the second sliding member 22 of the second shock absorption assembly 2 can produce adaptive axial sliding, thereby being able to buffer the axial movement. With such a setting, the shock absorption system provided by this embodiment can buffer vibrations in all directions, effectively reducing the vibrations borne by the drive mechanism 4.

[0066] In a further embodiment, as Figure 2 shown, the shock absorption system further includes a third shock absorption assembly 3. Among them, the third shock absorption assembly 3 includes a third connecting member 31, a second support body (not shown in the figure), and a fourth connecting member 32. The third connecting member 31 is connected to the second sliding member 22, and the second support body is connected between the third connecting member 31 and the fourth connecting member 32, that is, the second support body is respectively connected to the third connecting member 31 and the fourth connecting member 32, and the fourth connecting member 32 is connected to the transmission shaft 5.

[0067] Among them, the third connecting member 31 is swingably connected to the second support body about a third axis line, and the fourth connecting member 32 is swingably connected to the second support body about a fourth axis line. Specifically, the third axis line and the fourth axis line are non-parallel, and the third axis line and the fourth axis line can be radially consistent with the first shaft member or the second shaft member. For example, the third axis line and the fourth axis line can be specifically perpendicular to each other, thus forming a "cross shaft" connection structure. When the third connecting member 31 and the fourth connecting member 32 swing relative to each other in any direction, they can be decomposed into swings about the third axis line and the fourth axis line, so as to better reduce any radial vibration.

[0068] When the third damping assembly 3 is subjected to a load along the radial direction of the output shaft, the third connecting member 31 and the fourth connecting member 32 swing relative to each other, and at the same time, the second support body can generate radial deformation to reduce radial vibration.

[0069] The output shaft of the driving mechanism 4 is sequentially connected to the transmission shaft 5 through the first damping assembly 1, the second damping assembly 2, and the third damping assembly 3, and drives the transmission shaft 5 to rotate. The third damping assembly 3 is similar in structure to the first damping assembly 1, and can play a role in further buffering radial vibration and buffering torque, thereby further improving the damping effect of the damping system.

[0070] In some embodiments, the setting manner of the third damping assembly 3 can also refer to the structure of the first damping assembly 1 in the above embodiments. Further, the second support body can be set as an elastic body, and its shape structure can also be set as an annular structure. The third connecting member 31 is set as a third fork, the fourth connecting member 32 is set as a fourth fork, the third fork and the fourth fork intersect with each other, the second support body is arranged in the space surrounded by the third fork and the fourth fork, and the second support body is respectively connected to each fork arm of the third fork and the fourth fork. The material of the second support body can be resin, rubber, a metal material with good elasticity, etc.

[0071] In some embodiments, one of the first sliding member 21 and the second sliding member 22 of the second damping assembly 2 is set as a cylindrical structure, and the other is slidably sleeved in the cylindrical structure. For example, the first sliding member 21 is set as a cylindrical structure, the second sliding member 22 is set as a shaft-like structure or a cylindrical structure, the second sliding member 22 is sleeved in the inner cavity of the first sliding member 21, and the two are slidably matched along the axial direction. In some embodiments, the second damping assembly 2 can be specifically a cylinder, an oil cylinder, etc. For example, when the second damping assembly 2 is an oil cylinder, one of the first sliding member 21 and the second sliding member 22 corresponds to the cylinder barrel of the oil cylinder, and the other corresponds to the piston rod of the oil cylinder, and the cylinder barrel and the piston rod are slidably matched.

[0072] The first sliding member 21 of the second shock-absorbing assembly 2 is connected to the second connecting member 12 of the first shock-absorbing assembly 1, which can be specifically achieved by means of spline connection, pin connection, snap connection, etc. The second sliding member 22 of the second shock-absorbing assembly 2 is connected to the third connecting member 31 of the third shock-absorbing assembly 3, which can also be specifically achieved by means of spline connection, pin connection, snap connection, etc.

[0073] In order to realize the connection between the first shock-absorbing assembly 1 and the output shaft of the drive mechanism 4, in some embodiments, the first connecting member 11 may be provided with a connection hole 111, and the output shaft of the drive mechanism 4 extends into and is connected to the connection hole 111, and the connection can be specifically achieved by means of splines.

[0074] A through slot 112 is provided on the side wall of the connection hole 111, and the size of the through slot 112 is adjustable so that the aperture size of the connection hole 111 is adjustable. In order to realize the adjustable width of the through slot 112, an adjusting bolt 113 may be provided on the first connecting member 11, and threaded holes adapted to the adjusting bolt 113 are provided on both sides of the through slot 112. By rotating the adjusting bolt 113, the width of the through slot 112 can be adjusted. With such a setting, the aperture size of the connection hole 111 can be adjusted by the adjusting bolt 113.

[0075] The output shaft of the drive mechanism 4 extends into the connection hole 111 and can be connected to the connection hole 111 by means of splines. When it is necessary to adjust the axial position of the drive mechanism 4, the adjusting bolt 113 can be loosened to enable the connection hole 111 to release the output shaft of the drive mechanism 4. After the adjustment is completed, the adjusting bolt 113 can be tightened again. Similarly, the second connecting member 12 may also be provided with a connection hole 111, and a convenient connection between the second connecting member 12 and the first sliding member 21 can be achieved through the adjusting bolt 113. The third connecting member 31 may also be provided with a connection hole 111, and a convenient connection between the third connecting member 31 and the second sliding member 22 can be achieved through the adjusting bolt 113. The fourth connecting member 32 is also provided with a connection hole 111, and a convenient connection between the fourth connecting member 32 and the transmission shaft 5 can be achieved through the adjusting bolt 113.

[0076] The embodiment of the present utility model further provides a working machine, including the shock-absorbing system described in any of the above embodiments. In this embodiment, the working machine may be a road roller, the drive mechanism 4 is a vibration drive mechanism of the road roller, and the transmission shaft 5 is an eccentric shaft of the road roller.

[0077] In a further embodiment, as Figure 3 shown, the road roller further includes a support plate 9, a first shock pad 8, and a connecting device; wherein, the first shock pad 8 is arranged on the support plate 9, and the drive mechanism 4 is connected to the first shock pad 8 through the connecting device.

[0078] In some embodiments, the first shock pad 8 may be arranged in a columnar structure. The support plate 9 may be evenly distributed with a plurality of first shock pads 8, and the connecting device is connected to each first shock pad 8. A positioning protrusion may be provided on the surface of the first shock pad 8 connected to the connecting device. The connecting device is positioned on the first shock pad 8 through the positioning protrusion, and the positioning protrusion plays a positioning role, that is, the connecting device and the first shock pad 8 can be mutually positioned through the positioning protrusion, and then the two can be tightly connected through a connecting member such as a fastening bolt. The first shock pad 8 may be made of a material with a certain elasticity such as rubber or resin.

[0079] With such an arrangement, the shock absorption effect can be further improved, and the vibration received by the driving mechanism 4 can be reduced.

[0080] The connecting device for connecting the driving mechanism 4 to the first shock pad 8 described above may include a fixing plate 6 and a fork foot component 7; wherein, the driving mechanism 4 is connected to the fixing plate 6, the fixing plate 6 is connected to the fork foot component 7, and the fork foot component 7 is connected to the first shock pad 8.

[0081] In some embodiments, the fixing plate 6 may be arranged in a circular shape. Fixing holes are provided around the driving mechanism 4, and the driving mechanism 4 can be connected to the circular fixing plate 6 through bolts inserted into the fixing holes. The fixing plate 6 is connected to the fork foot component 7, and the fork foot component 7 includes a plurality of fork feet, and each fork foot is respectively connected to the first shock pad 8 in a one-to-one correspondence.

[0082] With such an arrangement, the vibration received by the driving mechanism 4 can be effectively reduced through multiple shock absorption measures. Moreover, through the arrangement of the first shock absorption component 1, the second shock absorption component 2, and the third shock absorption component 3, the driving mechanism 4 can be arranged at the rear side of the first shock pad 8, that is, as shown in Figure 3 the left position shown, and the vibration influence received by the driving mechanism 4 can be effectively reduced.

[0083] Since the working machine provided in this embodiment includes the shock absorption system of any of the above embodiments, therefore, the working machine provided in this embodiment can effectively improve the shock absorption effect on the driving mechanism 4. The derivation process of this beneficial effect is generally similar to that of the beneficial effect brought by the above shock absorption system, and will not be elaborated here.

[0084] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A coupling assembly, characterized in that: Used for transmission connection between the first shaft and the second shaft, comprising: A first connecting member (11) is provided with a first connecting portion for transmission connection with the first shaft member; The second connecting member (12) is provided with a second connecting portion for transmission connection with the second shaft member; wherein: The first connecting member (11) and the second connecting member (12) are connected to each other in a swingable manner; a first support body (13) connected between the first connecting member (11) and the second connecting member (12), wherein the first connecting member (11) and the first support body (13) are connected so as to be swingable around a first axis, and the second connecting member (12) and the first support body (13) are connected so as to be swingable around a second axis; The first connecting member (11) is configured as a first yoke, the second connecting member (12) is configured as a second yoke, and the fork arms of the first yoke and the fork arms of the second yoke intersect with each other; the first supporting body (13) is configured as an annular structure and is disposed in a space enclosed by the first yoke and the second yoke; the first supporting body (13) is connected to each fork arm of the first yoke and the second yoke via a pin shaft (15).

2. The coupling assembly according to claim 1, characterized in that: The first supporting body (13) is configured as an elastic body.

3. The coupling assembly according to any one of claims 1 to 2, characterized in that: The first connecting portion and / or the second connecting portion is provided with a connecting hole (111), and a side wall of the connecting hole (111) is provided with a through slit (112), and the size of the through slit (112) is adjustable, so that the aperture size of the connecting hole (111) is adjustable.

4. A shock absorbing system, characterized in that: It comprises a driving mechanism (4), a transmission shaft (5) and a first shock absorbing assembly (1), wherein the output shaft of the driving mechanism (4) and the transmission shaft (5) are transmission-connected via the first shock absorbing assembly (1); wherein: The first shock absorbing assembly (1) is a coupling assembly according to any one of claims 1 to 3, the output shaft of the driving mechanism (4) is connected to the first connecting portion of the first connecting member (11), and the second connecting portion of the second connecting member (12) is transmission-connected to the transmission shaft (5).

5. The shock absorbing system according to claim 4, characterized in that: Also includes: A second shock absorbing assembly (2) is arranged between the second connecting member (12) and the transmission shaft (5), and the second shock absorbing assembly (2) comprises a first sliding member (21) and a second sliding member (22), the first sliding member (21) and the second sliding member (22) being slidably matched with each other, the first sliding member (21) being connected to the second connecting member (12), and the second sliding member (22) being transmission-connected to the transmission shaft (5).

6. The shock absorption system according to claim 5, characterized in that: Also includes: A third shock absorbing assembly (3) is arranged between the second shock absorbing assembly (2) and the transmission shaft (5), and the third shock absorbing assembly (3) comprises a third connecting member (31) and a fourth connecting member (32); the third connecting member (31) is connected to the second sliding member (22), the third connecting member (31) and the fourth connecting member (32) are swingably connected, and the fourth connecting member (32) is connected to the transmission shaft (5).

7. The shock absorption system according to claim 6, characterized in that: The third shock absorbing assembly (3) further comprises a second support body, the third connecting member (31) is connected to the second support body so as to be swingable around a third axis; the fourth connecting member (32) is connected to the second support body so as to be swingable around a fourth axis; The second support body is configured as an elastic body; The third connecting member (31) is configured as a third yoke, the fourth connecting member (32) is configured as a fourth yoke, the third yoke and the fourth yoke intersect each other; the second supporting body is configured as an annular structure, and is disposed in a space enclosed by the third yoke and the fourth yoke; the second supporting body is connected to each fork arm of the third yoke and the fourth yoke respectively through a pin shaft.

8. A working machine, characterized in that: It comprises the coupling assembly described in any one of claims 1 to 3 or the shock absorbing system described in any one of claims 4 to 7.

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