Shift actuator damper, shift actuator and vehicle

Abstract

The utility model relates to the field of gear shifting actuator, especially relates to a gear shifting actuator buffer, gear shifting actuator and car. Gear shifting actuator buffer, including coaxial arrangement and can revolve about the axis relative rotation's driving disc and driven disc, the disc surface of driving disc and the disc surface of driven disc are mutually parallel arrangement, wherein, the driving disc is provided with the mounting groove, still include first spring and second spring, first spring and second spring coaxial arrangement in the mounting groove, wherein, the one end of first spring is away from second spring and first inner wall abuts, the one end of second spring is away from first spring and second inner wall abuts, still include spring baffle, the one end of spring baffle is connected with the disc surface of driven disc to driving disc one side, and the other end is located between first spring and second spring. The utility model solves the technical problem existing in the prior art, how to improve the service life of the spring of gear shifting actuator buffer, wherein, the spring is used to absorb the energy of the impact and vibration generated by gear shifting.

Description

Technical Field

[0001] This utility model relates to the field of gear shifting actuators, and in particular to a gear shifting actuator buffer, a gear shifting actuator, and an automobile. Background Technology

[0002] The shift actuator damper is a core component of an automotive automatic transmission shifting system, used to achieve smooth, fast, and accurate gear shifting. During gear shifting, especially at the moment of clutch engagement or gear meshing, a sudden torque change and shock occur. The shift actuator damper typically absorbs this shock energy through the elastic deformation of its components, allowing the sudden change and shock to be released smoothly. Using a shift actuator damper improves the quality of gear shifting, making the driver and passengers feel no jerking or shock, thus enhancing comfort. It also reduces the instantaneous load on transmission gears, synchronizers, drive shafts, and other hardware, extending their service life.

[0003] Patent CN207583932U discloses one of the prior art shift actuator buffers, whose working principle is as follows: When the shift mechanism starts or the shift reaches the synchronization position, the shift load suddenly increases, and the speed of the power output buffer bracket changes instantaneously. When the impact energy is greater than the stored energy of the spring, the outer spring is compressed first. When the relative angle between the buffer bracket and the upper and lower pressure plates exceeds 5°, the outer spring and the inner spring work together to achieve the buffer function.

[0004] It can be noted that in the existing technology, the shift actuator damper requires both the outer and inner springs to work together to achieve the damping function each time. That is, the shift actuator damper requires both the outer and inner springs to be compressed at the same time each time it achieves the damping function. After the damping function is achieved, the outer and inner springs are released to restore their deformation. Over time, the service life of the outer and inner springs will be shortened, increasing the later maintenance costs.

[0005] Therefore, the technical problem of the existing technology is how to improve the service life of the spring in the shift actuator buffer, where the spring is used to absorb the energy of the impact and vibration generated during shifting. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned deficiencies in the prior art by providing a shift actuator buffer, a shift actuator, and an automobile.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] A shift actuator buffer includes a driving disc and a driven disc coaxially arranged and rotatable relative to each other about an axis, wherein the disc surfaces of the driving disc and the driven disc are arranged parallel to each other.

[0009] The active disk is provided with a mounting groove, which is formed by the surface of the active disk facing the driven disk and recessed in the direction away from the driven disk. The mounting groove is elongated and located on one side of the axis of the active disk. Along the extension direction of the mounting groove, the inner walls of the two ends of the mounting groove are the first inner wall and the second inner wall, respectively.

[0010] It also includes a first spring and a second spring, which are coaxially arranged in the mounting groove. The end of the first spring away from the second spring abuts against the first inner wall, and the end of the second spring away from the first spring abuts against the second inner wall.

[0011] It also includes a spring stop, one end of which is connected to the side of the driven disc facing the driving disc, and the other end is located between the first spring and the second spring.

[0012] Furthermore, the mounting groove sidewall located between the first inner wall and the second inner wall includes a first sidewall and a second sidewall, both of which extend along the extension direction of the mounting groove and are parallel to each other; the first sidewall is provided with a first protrusion, and the second sidewall is provided with a second protrusion, the first protrusion and the second protrusion are symmetrically mirrored, and a first gap is provided between the first protrusion and the second protrusion in the direction from the first sidewall to the second sidewall; the first spring and the second spring are respectively restricted by the first protrusion and the second protrusion, and a first gap is left along the extension direction of the mounting groove; the position where the first gap and the first gap intersect is the first position, and the end of the spring stop away from the driven plate is inserted into the first position.

[0013] Furthermore, the drive disc is provided with mounting holes that extend along the axial direction of the drive disc;

[0014] The driven plate is provided with a strip-shaped hole, and the two ends of the strip-shaped hole along the extension direction are equidistant from the center of the driven plate;

[0015] It also includes a connector, one end of which is fixedly connected to the mounting hole, and the other end of which is movable and inseparable through the strip hole.

[0016] Furthermore, the connector includes a hollow stud, a screw, and a washer. The head of the hollow stud is threaded to the mounting hole, the shank of the hollow stud is threaded to the shank of the screw, the shank of the screw also passes through a slotted hole, and the head of the screw is restricted outside the slotted hole by the washer. The slotted hole is located between the head of the screw and the head of the hollow stud.

[0017] Furthermore, the number of mounting slots is a first predetermined number, and the first predetermined number of mounting slots are equidistantly spaced around the center of the active disk;

[0018] The number of the first spring and the second spring are also a first predetermined number, and each mounting slot is provided with one first spring and one second spring.

[0019] The number of spring stoppers is also a first predetermined number, and one of the spring stoppers is inserted between the first spring and the second spring in any mounting slot.

[0020] Furthermore, the direction of rotation of the first spring is the same as or opposite to that of the second spring.

[0021] Furthermore, a shift actuator is proposed, which includes the aforementioned shift actuator buffer.

[0022] Furthermore, an automobile is proposed that includes the aforementioned shift actuator buffer; or includes the aforementioned shift actuator.

[0023] Compared with existing technologies, the advantages of this utility model are:

[0024] I. In existing technology, when the instantaneous speed of the buffer bracket changes abruptly clockwise or counterclockwise, both the large and small springs are compressed. This means that both the outer and inner springs work together to achieve the buffering function. Consequently, regardless of the instantaneous speed change of the buffer bracket, both the outer and inner springs must operate, significantly shortening their lifespan. Therefore, a technical problem in existing technology is how to improve the lifespan of the springs in the buffer of the gear shifting actuator, where the springs absorb the energy of the impact and vibration generated during gear shifting.

[0025] In this invention, regardless of whether the instantaneous speed of the drive disc changes clockwise or counterclockwise, only one of the first and second springs is compressed by the spring stop; that is, either the first spring or the second spring is compressed. In other words, when the first spring is working, the second spring is not working, and vice versa. Compared to existing technologies, under the same operating conditions, only one of the first and second springs works. With the same number of shift speed changes, the first and second springs of this invention have a longer service life. Therefore, this invention solves the technical problem of how to improve the service life of the springs in the shift actuator buffer, where the springs are used to absorb the energy of the impact and vibration generated during shifting.

[0026] Second, in the prior art, the shift buffer requires three disc-shaped structures to realize the shift buffer function, namely the buffer bracket, the upper pressure plate, and the lower pressure plate; in this utility model, the shift actuator buffer only needs two disc-shaped structures, namely the driven disc and the driving disc, to realize the shift buffer function. Compared with the prior art, this utility model has fewer disc-shaped structural parts and saves more costs.

[0027] Third, the shift actuator buffer of this utility model can absorb the energy of the generated impact and vibration through the first spring and the second spring, thereby achieving the functions of buffering and anti-resonance, and also improving the comfort of riding. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of the shift actuator in the field of this utility model;

[0029] Figure 2 yes Figure 1 A sectional view of section AA in the middle;

[0030] Figure 3 yes Figure 1 A sectional view of section BB in the middle;

[0031] Figure 4 This is a schematic diagram of the active disk in Example 1;

[0032] Figure 5 This is a schematic diagram of the driven disk in Example 1.

[0033] The markings in the figure are: driven plate (1), driving plate (2), mounting groove (3), first inner wall (4), second inner wall (5), first spring (6), second spring (7), spring stop (8), first side wall (9), second side wall (10), first protrusion (11), second protrusion (12), mounting hole (13), strip hole (14), connector (15), hollow stud (16), screw (17), washer (18). Detailed Implementation

[0034] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length h," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] Example 1

[0036] like Figures 1-3 As shown in this embodiment, a shift actuator buffer is proposed, including a driving disk 2 and a driven disk 1 coaxially arranged and rotatable relative to each other about an axis. The disk surfaces of the driving disk 2 and the driven disk 1 are arranged parallel to each other. The driving disk 2 is provided with a mounting groove 3, which is formed by a recess on the side surface of the driving disk 2 facing the driven disk 1 in the direction away from the driven disk 1. The mounting groove 3 is elongated and located on one side of the axis of the driving disk 2. Along the extension direction of the mounting groove 3, the inner walls at both ends of the mounting groove 3 are a first inner wall 4 and a second inner wall 5, respectively. It also includes a first spring 6 and a second spring 7, which are coaxially arranged in the mounting groove 3. The end of the first spring 6 away from the second spring 7 abuts against the first inner wall 4, and the end of the second spring 7 away from the first spring 6 abuts against the second inner wall 5. It also includes a spring baffle 8, one end of which is connected to the side surface of the driven disk 1 facing the driving disk 2, and the other end is located between the first spring 6 and the second spring 7.

[0037] Both the driven disk 1 and the driving disk 2 are annular disc structures. The disk surface of the driven disk 1 is parallel to the disk surface of the driving disk 2, and one side of the disk surface of the driven disk 1 can be rotatably attached to one side of the disk surface of the driving disk 2.

[0038] The connection between the driven disk 1 and the driving disk 2 is as follows: the driving disk 2 is provided with a mounting hole 13, which extends along the axial direction of the driving disk 2; the driven disk 1 is provided with a strip hole 14, the two ends of the strip hole 14 along the extension direction are equidistant from the center of the driven disk 1; it also includes a connector 15, one end of which is fixedly connected to the mounting hole 13, and the other end is movable and inseparable through the strip hole 14.

[0039] The length of the strip hole 14 is configured according to the specific application and is not limited here. Preferably, in this embodiment, the length of the strip hole 14 should ensure that the driven disk 1 and the driving disk 2 can rotate at least 5° relative to each other.

[0040] One end of the connector 15 is fixedly connected to the mounting hole 13 of the drive disc 2, and the other end is movable and inseparable through the strip hole 14 of the driven disc 1. This ensures that the drive disc 2 and the driven disc 1 cannot be separated from each other through the connector 15, and also limits the relative rotation angle between the drive disc 2 and the driven disc 1.

[0041] The specific structure of the connector 15 is as follows: the connector 15 includes a hollow stud 16, a screw 17, and a washer 18. The head of the hollow stud 16 is threadedly connected to the mounting hole 13, the shank of the hollow stud 16 is threadedly connected to the shank of the screw 17, the shank of the screw 17 also passes through the slotted hole 14, and the head of the screw 17 is restricted outside the slotted hole 14 by the washer 18. The slotted hole 14 is located between the head of the screw 17 and the head of the hollow stud 16.

[0042] Furthermore, a connecting keyway is provided at the center of the driven plate 1 for fixed connection with other parts of the vehicle. This part is prior art and will not be described in detail here.

[0043] Furthermore, the active disk 2 is provided with a mounting groove 3, the opening of the mounting groove 3 is facing the driven disk 1, and the mounting groove 3 is long and narrow, approximately rectangular.

[0044] Furthermore, the first spring 6 and the second spring 7 are preferably identical springs with the same stiffness, length, and diameter; the direction of rotation of the first spring 6 and the second spring 7 may be the same or opposite, which is not limited here.

[0045] Furthermore, the number of mounting slots 3 is a first predetermined number, and the first predetermined number of mounting slots 3 are equidistantly spaced around the center of the drive disc 2; the number of first springs 6 and second springs 7 is also a first predetermined number, and each mounting slot 3 is provided with one first spring 6 and one second spring 7; the number of spring baffles 8 is also a first predetermined number, and each mounting slot 3 is between the first spring 6 and the second spring 7 by one spring baffle 8. Preferably, the first predetermined number is 3.

[0046] like Figure 4 , Figure 5 As shown, further, the sidewall of the mounting groove 3 located between the first inner wall 4 and the second inner wall 5 includes a first sidewall 9 and a second sidewall 10. The first sidewall 9 and the second sidewall 10 extend along the extension direction of the mounting groove 3 and are parallel to each other. The first sidewall 9 is provided with a first protrusion 11, and the second sidewall 10 is provided with a second protrusion 12. The first protrusion 11 and the second protrusion 12 are symmetrically mirrored. In the direction from the first sidewall 9 to the second sidewall 10, a first gap is provided between the first protrusion 11 and the second protrusion 12. The first spring 6 and the second spring 7 are respectively restricted by the first protrusion 11 and the second protrusion 12, and a first gap is left along the extension direction of the mounting groove 3. The position where the first gap and the first gap intersect is the first position. The spring baffle 8 is inserted into the first position at the end away from the driven plate 1.

[0047] In this embodiment, in the initial position, i.e., when the relative rotation angle between the driven disk 1 and the driving disk 2 is 0°, one end of the first spring 6 abuts against the first inner wall 4, and the other end abuts against the side surface of the first protrusion 11 facing the first inner wall 4 and the side surface of the second protrusion 12 facing the first inner wall 4. One end of the second spring 7 abuts against the second inner wall 5, and the other end abuts against the side surface of the first protrusion 11 facing the second inner wall 5 and the side surface of the second protrusion 12 facing the second inner wall 5. When the driving disk 2 rotates, the first spring 6 or the second spring 7 acts on the spring stop 8, thereby driving the driven disk 1 to rotate. During this process, the compression or release of the first spring 6 or the second spring 7 provides corresponding buffering.

[0048] The following example illustrates how the shift actuator buffer in this embodiment is used, with the compression of the first spring 6 absorbing the energy of the impact and vibration generated during gear shifting. In use, when the shift mechanism starts or the shift reaches the synchronization position, the shift load suddenly increases, and the instantaneous speed of the driving disc 2 changes abruptly clockwise. The driving disc 2 has a tendency to rotate relative to the driven disc 1. When the impact energy exceeds the stored energy of the first spring 6, the spring baffle 8 pushes the first spring 6 to compress, and the second spring 7 relaxes, thereby causing the driven disc 1 to rotate clockwise. During this process, the driven disc 1 rotates slower than the driving disc 2; that is, the driving disc 2 rotates first, and after the first spring 6 is compressed, it pushes the driven disc 1 to rotate. Simultaneously, during this process, the first spring 6 absorbs the energy of the impact and vibration generated during gear shifting.

[0049] When the instantaneous speed of the driving disc 2, which outputs power, suddenly changes counterclockwise, the spring baffle 8 pushes the second spring 7 to compress, and the first spring 6 to relax, thereby causing the driven disc 1 to rotate counterclockwise. The process and principle are the same as described above, and will not be repeated here.

[0050] As the background technology shows, in existing technologies, when the instantaneous speed of the buffer bracket changes abruptly clockwise or counterclockwise, both the large and small springs are compressed. This means that both the outer and inner springs work together to achieve the buffering function. However, this means that regardless of the instantaneous speed change of the buffer bracket, both the outer and inner springs must operate, significantly shortening their lifespan. Therefore, a technical problem in existing technologies is how to improve the lifespan of the springs in the buffer of the gear shifting actuator, where the springs absorb the energy of the impact and vibration generated during gear shifting.

[0051] In this embodiment, regardless of whether the instantaneous speed of the drive disc 2 changes clockwise or counterclockwise, only one of the first spring 6 and the second spring 7 is compressed by the spring stop 8; that is, either the first spring 6 or the second spring 7 is compressed. In other words, when the first spring 6 is working, the second spring 7 is not working, and when the second spring 7 is working, the first spring 6 is not working. Compared with the prior art, under the same working conditions, only one of the first spring 6 and the second spring 7 is working. Under the same number of shift speed changes, the service life of the first spring 6 and the second spring 7 in this embodiment is longer. Therefore, this embodiment solves the technical problem existing in the prior art: how to improve the service life of the springs of the shift actuator buffer, wherein the springs are used to absorb the energy of the impact and vibration generated by shifting.

[0052] Furthermore, in the prior art, the shift buffer requires three disc-shaped structures to realize the shift buffer function, namely the buffer bracket, the upper pressure plate, and the lower pressure plate; in this embodiment, the shift actuator buffer only requires two disc-shaped structures, namely the driven disc 1 and the driving disc 2, to realize the shift buffer function. Compared with the prior art, this embodiment has fewer disc-shaped structural parts and saves more costs.

[0053] Furthermore, the shift actuator damper in this embodiment can absorb the energy of the generated impact and vibration through the first spring 6 and the second spring 7, thereby achieving the functions of buffering and anti-resonance, and also improving the comfort of riding.

[0054] Example 2

[0055] This embodiment proposes a shift actuator, which includes the shift actuator buffer proposed in Embodiment 1.

[0056] Example 3

[0057] This embodiment proposes a vehicle that includes the shift actuator buffer proposed in Embodiment 1; or includes the shift actuator proposed in Embodiment 2.

[0058] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A shift actuator buffer, comprising a driving disc (2) and a driven disc (1) coaxially arranged and rotatable relative to each other about an axis, wherein the disc surface of the driving disc (2) and the disc surface of the driven disc (1) are arranged parallel to each other; characterized in that: in, The active disk (2) is provided with a mounting groove (3). The mounting groove (3) is formed by the recess of the active disk (2) on the side surface facing the driven disk (1) in the direction away from the driven disk (1). The mounting groove (3) is long and narrow. The mounting groove (3) is located on one side of the axis of the active disk (2). Along the extension direction of the mounting groove (3), the inner walls of the two ends of the mounting groove (3) are the first inner wall (4) and the second inner wall (5), respectively. It also includes a first spring (6) and a second spring (7), which are coaxially arranged in the mounting groove (3). The end of the first spring (6) away from the second spring (7) abuts against the first inner wall (4), and the end of the second spring (7) away from the first spring (6) abuts against the second inner wall (5). It also includes a spring stop (8), one end of which is connected to the side of the driven disk (1) facing the driving disk (2), and the other end is located between the first spring (6) and the second spring (7).

2. The shift actuator buffer according to claim 1, characterized in that, The mounting groove (3) sidewall located between the first inner wall (4) and the second inner wall (5) includes a first sidewall (9) and a second sidewall (10). The first sidewall (9) and the second sidewall (10) extend along the extension direction of the mounting groove (3) and are parallel to each other. The first sidewall (9) is provided with a first protrusion (11), and the second sidewall (10) is provided with a second protrusion (12). The first protrusion (11) and the second protrusion (12) are symmetrically mirrored. A first gap is provided between the first protrusion (11) and the second protrusion (12) in the direction from the first sidewall (9) to the second sidewall (10). The first spring (6) and the second spring (7) are respectively restricted by the first protrusion (11) and the second protrusion (12), and a first gap is left along the extension direction of the mounting groove (3). The position where the first gap and the first gap intersect is the first position. The end of the spring baffle (8) away from the driven plate (1) is inserted into the first position.

3. The shift actuator buffer according to claim 1, characterized in that, The drive disc (2) is provided with a mounting hole (13), which extends along the axial direction of the drive disc (2); The driven disk (1) is provided with a strip hole (14), and the two ends of the strip hole (14) along the extension direction are equidistant from the center of the driven disk (1); It also includes a connector (15), one end of which is fixedly connected to the mounting hole (13), and the other end is movable and inseparable through the strip hole (14).

4. The shift actuator buffer according to claim 3, characterized in that, The connector (15) includes a hollow stud (16), a screw (17), and a washer (18). The head of the hollow stud (16) is threaded to the mounting hole (13), the shank of the hollow stud (16) is threaded to the shank of the screw (17), the shank of the screw (17) is also inserted through the slotted hole (14), and the head of the screw (17) is restricted outside the slotted hole (14) by the washer (18). The slotted hole (14) is located between the head of the screw (17) and the head of the hollow stud (16).

5. The shift actuator buffer according to claim 1, characterized in that, The number of mounting slots (3) is a first predetermined number, and the first predetermined number of mounting slots (3) are equidistantly spaced around the center of the active disk (2); The number of the first spring (6) and the second spring (7) are also the first predetermined number, and each mounting slot (3) is provided with a first spring (6) and a second spring (7). The number of spring baffles (8) is also a first predetermined number, and one of the spring baffles (8) is inserted between the first spring (6) and the second spring (7) in any mounting slot (3).

6. The shift actuator buffer according to claim 1, characterized in that, The direction of rotation of the first spring (6) is the same as or opposite to that of the second spring (7).

7. A gear shifting actuator, characterized in that, Includes the shift actuator buffer as described in any one of claims 1-6.

8. A car, characterized in that, Includes the shift actuator buffer as described in any one of claims 1-6.

9. A car, characterized in that, Includes the gear shifting actuator as described in claim 7.

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