Actuator and vehicle

Abstract

The invention relates to an actuator and a vehicle, and relates to the technical field of vehicles. The actuator includes a housing, a drive mechanism, a transmission mechanism, and an output member. The output piece is provided with a mounting end deviating from the first end in the extending direction of the second axis, and the mounting end is used for being rotationally connected with a braking part of the brake. After the output piece moves, power can be transmitted to the braking part so as to drive the brake to work. The detection piece makes contact with the second end, the output piece can respond to rotation of the first end of the connecting part and move towards the braking part in the extending direction of the second axis so that the brake can be in the working state, in the working state, the brake applies braking force to the output piece, and the detection piece can respond to abutting of the output piece to generate a detection signal. The magnitude of the acting force applied to the detection part can be calculated according to the detection signal, then the magnitude of the braking force of the driver is obtained, the driving state of the vehicle is adjusted in time, and the occurrence of vehicle sliding accidents is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an actuator and a vehicle. Background Art

[0002] Once the current actuator is overheated or fails, it may cause the vehicle to roll down the slope, thereby threatening the safe use of the vehicle. Therefore, how to reduce the risk of vehicle rolling is an issue that needs to be paid attention to. Summary of the invention

[0003] Based on this, the present application provides an actuator and a vehicle to reliably detect the braking force, thereby reducing the risk of the vehicle rolling.

[0004] According to one aspect of the present application, an embodiment of the present application provides an actuator, comprising:

[0005] A housing having a receiving cavity;

[0006] A drive mechanism, comprising an input member at least partially disposed within the accommodating cavity, the input member being configured to rotate about a first axis;

[0007] The transmission mechanism is arranged in the accommodating cavity, the transmission mechanism comprises a wheel body member and a transmission member, the wheel body member is sleeved on the input member, the transmission member is configured to be rotatable around the second axis, the transmission member comprises a connecting portion and a meshing portion connected to each other, the meshing portion is meshed and connected with the wheel body member; the connecting portion has a first end and a second end oppositely arranged along the extension direction of the second axis, the meshing portion is located between the first end and the second end; the first axis and the second axis are parallel to each other;

[0008] an output member, movably connected to the housing along the extension direction of the second axis, the output member being threadedly connected to the first end of the connecting portion, the output member having a mounting end away from the first end along the extension direction of the second axis, the mounting end being used for rotatably connecting to the braking portion of the brake; and

[0009] a detection member in contact with the second end;

[0010] Among them, the output member can move toward the braking part along the extension direction of the second axis in response to the rotation of the first end of the connecting part, so that the brake is in a working state; in the working state, the brake applies a braking force to the output member, and the detection member can generate a detection signal in response to the pressure of the output member.

[0011] In one of the embodiments, a guide portion is provided on the outer surface of the output member, and the guide portion is slidably connected to the inner wall of the accommodating cavity along the extension direction of the second axis.

[0012] In one embodiment, the actuator further includes a first bearing, the connecting portion is mounted on the inner wall of the accommodating cavity through the first bearing, and the first bearing is located on at least one of the two sides of the meshing portion along the extension direction of the second axis.

[0013] In one of the embodiments, a mounting portion is provided on at least one of the two sides of the meshing portion along the extension direction of the second axis, and the first bearing includes an inner ring and an outer ring, the outer ring is fixed to the inner wall of the accommodating cavity, the inner ring is rotatable around the axis of the outer ring, and the inner ring abuts against the mounting portion.

[0014] In one embodiment, the actuator further comprises an adjusting member, which has two side surfaces arranged opposite to each other along the extension direction of the second axis, wherein one side surface contacts the second end, and the other side surface contacts the force-bearing surface of the detecting member.

[0015] In one of the embodiments, the input member further has a protruding end extending out of the accommodating cavity.

[0016] In one embodiment, the actuator also includes a second bearing, the input member is mounted on the housing through the second bearing, the inner ring of the second bearing abuts against the input member, and the outer ring of the second bearing is fixed to the inner wall of the accommodating cavity; along the extension direction of the first axis, the second bearing is located between the wheel body and the protruding end.

[0017] In one of the embodiments, the outer surface of the extended end includes a force-bearing surface, the force-bearing surface is configured as a plane, and the force-bearing surface is parallel to the extension direction of the first axis.

[0018] In one embodiment, the actuator further includes an adjusting member, which is movably connected to the housing along an extension direction of the second axis, and the adjusting member is in contact with the detecting member.

[0019] According to another aspect of the present application, an embodiment of the present application provides a vehicle, comprising the actuator in any of the above embodiments.

[0020] In the above-mentioned actuator and vehicle, the actuator includes a housing, a driving mechanism, a transmission mechanism and an output member. Through the meshing transmission between the meshing part and the wheel body member, the power is transmitted from the wheel body member to the meshing part of the transmission, so that the transmission member can be driven to rotate around the second axis. The overall structure is simple and reliable. In addition, the output member has a mounting end that is away from the first end along the extension direction of the second axis, and the mounting end is used to be rotatably connected to the braking part of the brake. After the output member moves, the power can be transmitted to the braking part and then drive the brake to work. The detection member contacts the second end, and the output member can respond to the rotation of the first end of the connecting part and move toward the braking part along the extension direction of the second axis to put the brake in a working state. In the working state, the brake applies a braking force to the output member, and the detection member can generate a detection signal in response to the pressure of the output member. According to the detection signal, the magnitude of the force applied to the detection member can be calculated, and then the magnitude of the braking force of the driver can be obtained, and the driving state of the vehicle can be adjusted in time to reduce the occurrence of slipping accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure provided for some embodiments of the present application.

[0022] Figure 2 for Figure 1 Front view of the actuator in .

[0023] Figure 3 for Figure 2 Cross-section view at AA in the middle.

[0024] Figure 4 for Figure 1 Left side view of the actuator in

[0025] Figure 5 for Figure 4 Schematic diagram of the cross section at BB in the middle.

[0026] Figure 6 for Figure 4 Cross-section view at CC.

[0027] The reference numerals in the specific implementation manner are as follows:

[0028] 100. Actuator; 1. Shell; K. Accommodating chamber; 2. Driving mechanism; 21. Input member; 211. Extended end; M1. Force-bearing surface; 31. Wheel member; 32. Transmission member; 321. Connecting portion; 322. Engaging portion; D1. First end; D2. Second end; 4. Output member; KD. Mounting end; DX. Guide portion; 5. Detection member; ZC1. First bearing; ZC2. Second bearing; KZ. Mounting portion; 6. Adjustment member; 7. Regulating member; W. Braking portion; L1. First axis; L2. Second axis. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0035] See also Figure 1 , Figure 2 and Figure 3 , Figure 1 A schematic diagram of the structure of an actuator 100 provided in some embodiments of the present application, Figure 2 for Figure 1 A front view of the actuator 100 in FIG. Figure 3 for Figure 2 Cross-section view at AA in the middle.

[0036] An actuator 100 provided in an embodiment of the present application includes a housing 1, a driving mechanism 2, a transmission mechanism and an output member 4. The housing 1 has a housing cavity K for installing the driving mechanism 2, the transmission mechanism and the output member 4. The driving mechanism 2 includes an input member 21 at least partially disposed in the housing cavity K, the input member 21 is configured to be rotatable around a first axis L1, the transmission mechanism is disposed in the housing cavity K, and the transmission mechanism includes a wheel member 31 and a transmission member 32, and the wheel member 31 is sleeved on the input member 21. In this way, when the input member 21 is driven to rotate around the first axis L1, the wheel member 31 connected to the input member 21 can also rotate around the first axis L1 with the input member 21, and transmit power to the wheel member 31.

[0037] Among them, you can refer to Figure 3, the housing 1 can be configured as a detachable structure. For example, the housing 1 can include two sub-housings 1, the two sub-housings 1 are detachably connected, and the two sub-housings 1 jointly define a receiving chamber K, and the drive mechanism 2, the transmission mechanism, and the output member 4 can all be disposed in the receiving chamber K. Thus, the actuator 100 is easy to disassemble and convenient to maintain. In addition, the setting of the receiving chamber K structure can be designed according to the structures of the drive mechanism 2, the transmission mechanism, and the output member 4 so that the arrangement of the various components in the housing 1 is more orderly.

[0038] The transmission member 32 is configured to rotate around the second axis L2, and the transmission member 32 has a connecting portion 321 and a meshing portion 322 connected to each other, the meshing portion 322 is meshed and connected with the wheel body member 31, and the connecting portion 321 has a first end D1 and a second end D2 arranged oppositely along the extension direction of the second axis L2. The meshing portion 322 is located between the first end D1 and the second end D2, and the first axis L1 and the second axis L2 are parallel to each other. In this way, through the meshing transmission between the meshing portion 322 and the wheel body member 31, the power is transmitted from the wheel body member 31 to the meshing portion 322 of the transmission member 32, so that the transmission member 32 can be driven to rotate around the second axis L2. The overall structure is simple and reliable. In addition, the meshing transmission between the meshing portion 322 and the wheel body member 31 can also adjust the transmission ratio by changing the number of teeth of the wheel body member 31 and the meshing portion 322 to meet different application requirements.

[0039] The output member 4 is movably connected to the housing 1 along the extension direction of the second axis L2, and the output member 4 is threadedly connected to the first end D1 of the connecting portion 321. The output member 4 has a mounting end KD away from the first end D1 along the extension direction of the second axis L2, and the mounting end KD is used to be rotatably connected to the braking portion W of the brake.

[0040] The output member 4 is threadedly connected to the first end D1 of the connecting portion 321, so that when the connecting portion 321 is driven to rotate around the second axis L2, the output member 4 threadedly connected to the connecting portion 321 can also be driven. Since the output member 4 is movably connected to the housing 1 along the extension direction of the second axis L2, the output member 4 moves along the extension direction of the second axis L2 after being driven. After the output member 4 moves, it drives the brake part W connected thereto to transmit power to the brake. Among them, the rotatable connection between the brake part W and the mounting end KD can be achieved by a ball bowl structure. The ball bowl structure allows the component to move in multiple directions, including rotation, swinging and tilting, providing a high degree of freedom, and the ball bowl structure can maintain the stability of the connecting portion 321, and can maintain good contact even under load or vibration. The ball bowl structure is simple in structure, easy to install and disassemble, and easy to maintain and clean. In some other embodiments, a V-groove structure or other suitable structures can also be adopted.

[0041] Specifically, the output member 4 can be configured as a screw sleeve, which is provided with an internal thread, and the first end D1 of the connection portion 321 can be provided with an external thread, or the screw sleeve can be provided with an external thread, and the first end D1 of the connection portion 321 can be provided with an internal thread. The threaded connection can utilize the self-locking property of the thread, so that the output member 4 can be locked at any position within the stroke range. The self-locking property of the thread refers to the ability of the thread to generate friction after being subjected to force, thereby reducing the risk of thread loosening.

[0042] The detection member 5 is in contact with the second end D2, and the output member 4 can move toward the braking portion W along the extension direction of the second axis L2 in response to the rotation of the first end D1 of the connecting portion 321, so that the brake is in a working state; in the working state, the brake applies a braking force to the output member 4, and the detection member 5 can generate a detection signal in response to the pressure of the output member 4.

[0043] Among them, "contact" refers to the state where two objects are physically in contact or in contact with each other. The contact state includes the abutment state and the non-abutment state. In the abutment state, it means that the contact force between the two objects is sufficient to overcome other external forces to keep them relatively still or in relative motion.

[0044] When the output member 4 transmits power to the brake part W connected thereto, the brake part W is driven so that the brake is in working state. For example, the brake may be a drum brake. After the brake part W is driven, the contact between the brake drum lining and the brake drum will generate friction. Due to the restriction between the top of the brake shoe and the brake drum lining, the gap between the brake drum and the brake shoe will gradually decrease, thereby generating braking force. After the brake applies braking force to the output member 4, the first end D1 of the connecting part 321 connected to the output member 4 will be subjected to an action force, and the detection member 5 in contact with the second end D2 of the connecting part 321 will give the connecting part 321 a reaction force, so that the connecting part 321 remains in a relatively static state. At this time, the reaction force and the action force are equal in magnitude and opposite in direction. The detection member 5 can generate a detection signal in response to the pressure of the output member 4, detect the magnitude of the reaction force, that is, detect the magnitude of the braking force, and can timely adjust the parking state of the vehicle according to the magnitude of the detected braking force to reduce the occurrence of slipping accidents.

[0045] In some embodiments of the present application, continue to refer to Figure 1 , and combined with reference Figure 4 and Figure 5 , Figure 4 Shows Figure 1 A left side view of the actuator 100 in FIG. Figure 5 Shows Figure 4 The outer surface of the output member 4 is provided with a guide portion DX, and the guide portion DX is slidably connected with the inner wall of the accommodating cavity K along the extending direction of the second axis L2.

[0046] In this way, the setting of the guide portion DX can make the output member 4 move along the extension direction of the second axis L2 in the accommodating cavity K, providing accurate guidance and positioning for the output member 4. And the sliding connection can reduce the friction between the guide portion DX and the inner wall of the accommodating cavity K, thereby reducing energy consumption and wear, and extending the service life of the output member 4. Specifically, the guide portion DX can be the head of the screw, and the accommodating cavity K can be set as a rectangular space to limit the output member 4 to follow the connection portion 321 in the rectangular space. Rotate around the extension direction of the second axis L2, so that the output member 4 can only move in a straight line. Rectangles are easier to process and form than other shapes such as pentagons.

[0047] In some embodiments of the present application, continue to refer to Figure 1 , Figure 4 and Figure 5 The actuator 100 further includes a first bearing ZC1 , through which the connecting portion 321 is mounted on the inner wall of the accommodating cavity K, and the first bearing ZC1 is located on at least one of the two sides of the meshing portion 322 along the extending direction of the second axis L2 .

[0048] Specifically, the first bearing ZC1 may be a roller bearing, an oil-containing bearing or other bearing types. The first bearing ZC1 is used to install and support the connecting portion 321. The first bearing ZC1 is located on at least one side of the two sides of the meshing portion 322 along the extension direction of the second axis L2, including the case where the first bearing ZC1 is located on one side of the two sides of the meshing portion 322 along the extension direction of the second axis L2, and also includes the case where two or more first bearings ZC1 are located on both sides of the meshing portion 322 along the extension direction of the second axis L2. In order to provide a higher support force for the connecting portion 321 and reduce the weight of the entire vehicle, two bearings may be provided.

[0049] In some embodiments of the present application, continue to refer to Figure 1 , Figure 4 and Figure 5 A mounting portion AZ is provided on at least one of the two sides of the meshing portion 322 along the extension direction of the second axis L2. The first bearing ZC1 includes an inner ring and an outer ring. The outer ring is fixed to the inner wall of the accommodating cavity K. The inner ring is rotatable around the axis of the outer ring, and the inner ring abuts against the mounting portion AZ.

[0050] In this way, the installation of the mounting portion AZ can indirectly achieve the fixation of the inner ring and the meshing portion 322, and can effectively reduce the risk of the meshing portion 322 sliding axially relative to the inner ring, thereby having a better axial positioning function. Under the condition that the meshing portion 322 has a better axial positioning, the automobile and its powertrain will have better reliability. In addition, the mounting portion AZ is a protrusion provided on two end surfaces that are relatively arranged in the extension direction of the meshing portion 322 along the second axis L2. Compared with some current designs in which bearings are installed in grooves, it can better enhance the overall strength of the actuator 100 structure.

[0051] In some embodiments of the present application, continue to refer to Figure 1 , Figure 4 and Figure 5 The actuator 100 further includes an adjusting member 6 , which has two side surfaces that are oppositely disposed along the extension direction of the second axis L2 , one of which contacts the second end D2 , and the other of which contacts the force-bearing surface M1 of the detecting member 5 .

[0052] In this way, the force-bearing surface M1 of the detection member 5 can be in contact with the adjustment member 6. Compared with the detection member 5 directly contacting various small components in the actuator 100, the force-bearing surface M1 of the detection member 5 is more uniform after the adjustment member 6 is provided, which reduces local stress concentration, makes the force detected by the detection member 5 more accurate, and can also reduce the direct contact between the detection member 5 and the internal components of the actuator 100, thereby reducing the wear of the components. Specifically, the adjustment member 6 can be set as a pad.

[0053] In some embodiments of the present application, continue to refer to Figure 4 and Figure 5 , and combined with reference Figure 6 , Figure 6 Shows Figure 4 The input member 21 also has an extended end 211 extending out of the accommodating cavity K.

[0054] Most of the current actuators 100 are electrically controlled. In an emergency state such as a power outage, the actuator 100 may not be able to operate normally. In the present application, the input member 21 is provided with an extension end 211 extending out of the accommodating cavity K, so that the operator can operate the extension end 211 to drive the entire input member 21 to move.

[0055] In some embodiments of the present application, continue to refer to Figure 4 , Figure 5 , and combined with reference Figure 6The actuator 100 also includes a second bearing ZC2, and the input member 21 is installed on the housing 1 through the second bearing ZC2. The inner ring of the second bearing ZC2 abuts against the input member 21, and the outer ring of the second bearing ZC2 is fixed to the inner wall of the accommodating cavity K; along the extension direction of the first axis L1, the second bearing ZC2 is located between the wheel body 31 and the protruding end 211.

[0056] It is understandable that the second bearing ZC2 can be used to install and support the input member 21, so that the input member 21 can be stably installed on the housing 1. Specifically, the second bearing ZC2 can be a roller bearing, an oil-containing bearing or other bearing types. The inner ring of the second bearing ZC2 abuts against the input member 21, which can indirectly achieve the fixation of the inner ring and the input member 21.

[0057] Therefore, the input member 21 can be effectively prevented from axially sliding relative to the inner ring, thereby having a better axial positioning function. Under the condition that the input member 21 has a better axial positioning, the automobile and its powertrain will have better reliability. In addition, the second bearing ZC2 is located between the wheel body member 31 and the extension end 211, which helps to achieve force balance. In a static equilibrium state, the forces acting on the extension end 211 and the wheel body member 31 can be balanced by the second bearing ZC2, thereby reducing the vibration and noise of the system. When an external force or torque acts on the extension end 211, the second bearing ZC2 can effectively transfer the force to the wheel body member 31, thereby driving the entire system.

[0058] In some embodiments of the present application, continue to refer to Figure 4 The outer surface of the extended end 211 includes a force-bearing surface M1 , which is configured as a plane and is parallel to the extension direction of the first axis L1 .

[0059] The force-bearing surface M1 refers to the surface on which the operator applies force through a tool. The force-bearing surface M1 is constructed as a plane and is arranged parallel to the extension direction of the first axis L1, which is more convenient for the operator to manually hold or to clamp the actuator with a pliers, further improving the operating speed of the actuator 100 and the ease of use of the actuator 100. The force-bearing surface M1 is constructed as a plane, which is easier to process and produce, and can be adapted to a large number of force-applying tools.

[0060] In some other embodiments, the force-bearing surface M1 may also be constructed as a curved surface, and the force-bearing surface M1 may also be inclined relative to the first axis L1 , and may be designed accordingly according to the tool that applies force to the force-bearing surface M1 .

[0061] In some embodiments of the present application, continue to refer to Figure 1 , Figure 4 and Figure 5The actuator 100 further includes an adjusting member 7 , which is movably connected to the housing 1 along an extending direction of the second axis L2 , and the adjusting member 7 is in contact with the detecting member 5 .

[0062] It is understandable that when the driving member of the actuator 100 is not turned on, the braking part W of the actuator 100 will give a preload to the output member 4 of the brake, and the detection member 5 can generate an initial detection signal in response to the pressure of the output member 4. The size of the initial preload can be adjusted by adjusting the adjustment member 7 to move in the extension direction of the second axis L2. Specifically, the adjustment member 7 can be an adjusting nut, and a threaded through hole is provided on the housing 1. The adjusting nut is threadedly connected to the threaded through hole. The threaded connection can achieve a more accurate and precise change in the distance of the adjusting nut relative to the housing 1 in the extension direction of the second axis L2, so as to quickly make the preload reach the target value. In addition, the adjusting nut has an inner hole, and the above-mentioned adjustment member 6, bearing and detection member 5 can be accommodated in the inner hole. The overall structure is compact and saves installation space.

[0063] To facilitate understanding of the actuator 100 of the present application, the operation of the actuator 100 when the vehicle is parked and released is briefly described as follows:

[0064] When the vehicle is parked, the input member 21 of the driving mechanism 2 can be controlled by the controller to move around the first axis L1, and the input member 21 drives the wheel member 31 sleeved on the input member 21 to rotate around the first axis L1 along with the input member 21. When the wheel member 31 rotates around the first axis L1, the power can be transmitted to the meshing portion 322 meshed therewith, so that the transmission member 32 is driven to move around the second axis L2. When the connecting portion 321 of the transmission member 32 is driven to rotate along the extension direction of the second axis L2, the output member 4 threadedly connected to the connecting portion 321 can also be driven, and because the output member 4 can be movably connected to the housing 1 along the extension direction of the second axis L2, the output member 4 can move toward the brake along the extension direction of the second axis L2 after being driven, and transmit the power to the brake.

[0065] When the vehicle is released from parking, the controller controls the input member 21 of the driving mechanism 2 to move in the opposite direction of the input member 21 when the parking state is implemented. Then, through the same power transmission path as mentioned above, the output member 4 can be driven to move in the direction away from the brake along the extension direction of the second axis L2, thereby releasing the parking state.

[0066] Based on the same inventive concept, an embodiment of the present application provides a vehicle, comprising the actuator 100 in any of the above embodiments and a brake, wherein the brake comprises a braking part W, and the braking part W is rotatably connected to the mounting end KD of the actuator 100 .

[0067] The advantages possessed by the above actuator 100 are also possessed by the vehicle, which will not be elaborated here.

[0068] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An actuator, characterized in that: include: A housing having a receiving cavity; a drive mechanism, comprising an input member at least partially disposed within the accommodating cavity, the input member being configured to rotate about a first axis; A transmission mechanism is arranged in the accommodating cavity, the transmission mechanism comprises a wheel body member and a transmission member, the wheel body member is sleeved on the input member, the transmission member is configured to rotate around a second axis, the transmission member comprises a connecting portion and a meshing portion connected to each other, the meshing portion is meshed and connected with the wheel body member; the connecting portion has a first end and a second end arranged oppositely along the extension direction of the second axis, the meshing portion is located between the first end and the second end; the first axis and the second axis are parallel to each other; an output member, movably connected to the housing along the extension direction of the second axis, the output member being threadedly connected to the first end of the connecting portion, the output member having a mounting end away from the first end along the extension direction of the second axis, the mounting end being used for rotatably connecting to the braking portion of the brake; and a detection member in contact with the second end; Wherein, the output member can move toward the braking portion along the extension direction of the second axis in response to the rotation of the first end of the connecting portion, so that the brake is in a working state; in the working state, the brake applies a braking force to the output member, and the detection member can generate a detection signal in response to the pressure of the output member.

2. The actuator according to claim 1, characterized in that A guide portion is provided on the outer surface of the output member, and the guide portion is slidably connected to the inner wall of the accommodating cavity along the extending direction of the second axis.

3. The actuator according to claim 1, characterized in that The actuator further includes a first bearing, the connecting portion is mounted on the inner wall of the accommodating cavity through the first bearing, and the first bearing is located on at least one of the two sides of the meshing portion along the extending direction of the second axis.

4. The actuator according to claim 3, characterized in that The meshing portion is provided with a mounting portion on at least one of the two sides along the extension direction of the second axis. The first bearing includes an inner ring and an outer ring. The outer ring is fixed to the inner wall of the accommodating cavity. The inner ring is rotatable around the axis of the outer ring. The inner ring abuts against the mounting portion.

5. The actuator according to any one of claims 1 to 4, characterized in that: The actuator further comprises an adjusting member, wherein the adjusting member has two side surfaces which are arranged opposite to each other along the extension direction of the second axis, wherein one side surface contacts the second end, and the other side surface contacts the force-bearing surface of the detecting member.

6. The actuator according to any one of claims 1 to 4, characterized in that: The input member also has a protruding end extending out of the accommodating cavity.

7. The actuator according to claim 6, characterized in that The actuator also includes a second bearing, and the input member is installed on the housing through the second bearing. The inner ring of the second bearing abuts against the input member, and the outer ring of the second bearing is fixed to the inner wall of the accommodating cavity; along the extension direction of the first axis, the second bearing is located between the wheel body and the protruding end.

8. The actuator according to claim 6, characterized in that The outer surface of the extended end includes a force-bearing surface, the force-bearing surface is configured as a plane, and the force-bearing surface is parallel to an extension direction of the first axis.

9. The actuator according to any one of claims 1 to 4, characterized in that: The actuator further includes an adjusting member, which is movably connected to the housing along an extending direction of the second axis, and the adjusting member is in contact with the detecting member.

10. A vehicle, characterized in that: include: An actuator as claimed in any one of claims 1 to 9, and The brake comprises a brake part which is rotatably connected to the mounting end of the actuator.

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