CN216519544U - Gear selecting and shifting mechanism and transmission - Google Patents
Gear selecting and shifting mechanism and transmission Download PDFInfo
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- CN216519544U CN216519544U CN202220027213.3U CN202220027213U CN216519544U CN 216519544 U CN216519544 U CN 216519544U CN 202220027213 U CN202220027213 U CN 202220027213U CN 216519544 U CN216519544 U CN 216519544U
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Abstract
The application discloses a gear selecting and shifting mechanism which comprises an upper gear shifting finger, a lower gear shifting finger, a connecting shaft, a shell, a first driving mechanism and a second driving mechanism; the connecting shaft is fixedly connected with the upper gear shifting finger and the lower gear shifting finger respectively, and the connecting shaft is arranged in the shell in a sliding mode and can move along the axial direction of the connecting shaft; the first driving mechanism is connected with the upper shifting finger and used for driving the upper shifting finger to rotate around the axis of the connecting shaft; the second driving mechanism is connected with the lower shifting finger and used for driving the lower shifting finger and the connecting shaft to move together along the axial direction of the connecting shaft; when the gear is selected, the second driving mechanism drives the lower gear shifting finger and the connecting shaft to move together along the axial direction of the connecting shaft; when the gear is shifted, the first driving mechanism drives the upper gear shifting finger to rotate and drives the lower gear shifting finger to rotate through the connecting shaft. The application also discloses a transmission. This application compact structure, transmission efficiency is high, can conveniently shift and select to keep off.
Description
Technical Field
The application relates to the technical field of automobile parts, in particular to a gear selecting and shifting mechanism and a transmission.
Background
Along with the development and progress of society, the automotive industry develops rapidly, and people's requirement to the car constantly improves, and travelling comfort and convenience are more and more taken into account, and current manual gearbox needs the manual work to trample the separation and reunion footboard, and manual selection through the gear level is shifted gears, and complex operation is especially in the city operating mode that blocks up, and frequent shift gears, loose and trample the separation and reunion and change and bring tired sense. The existing automatic gearbox structure has the problems of complex structure and high manufacturing cost.
Therefore, a gear selecting and shifting mechanism and a transmission which have compact structure and high transmission efficiency and can conveniently shift gears and select gears are needed to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a shift gear selection gearshift, compact structure, high transmission efficiency can conveniently shift and select to keep off.
The technical scheme of the application provides a gear selecting and shifting mechanism which comprises an upper gear shifting finger, a lower gear shifting finger, a connecting shaft, a shell, a first driving mechanism and a second driving mechanism;
the connecting shaft is fixedly connected with the upper gear shifting finger and the lower gear shifting finger respectively, and is arranged in the shell in a sliding manner and can move along the axial direction of the connecting shaft;
the first driving mechanism is connected with the upper shifting finger and is used for driving the upper shifting finger to rotate around the axis of the connecting shaft;
the second driving mechanism is connected with the lower shifting finger and is used for driving the lower shifting finger and the connecting shaft to move together along the axial direction of the connecting shaft;
when the gear is selected, the second driving mechanism drives the lower gear shifting finger and the connecting shaft to move together along the axial direction of the connecting shaft;
when the gear is shifted, the first driving mechanism drives the upper gear shifting finger to rotate and drives the lower gear shifting finger to rotate through the connecting shaft.
Preferably, the first driving mechanism comprises a first linear reciprocating mechanism comprising a first push rod connected with the upper shift finger.
Preferably, go up to shift and indicate to be equipped with the edge the control lever of connecting axle radial extension, the tip of first push rod is equipped with the bayonet socket, the tip of control lever is equipped with the connector, the connector card go into extremely in the bayonet socket, the connector can in the bayonet socket along being on a parallel with the axial direction of connecting axle slides.
Preferably, the width of the connector is increased along the radial direction of the connecting shaft, the width of the bayonet is larger than the maximum width of the connector, and the connector can rotate in the bayonet.
Preferably, the upper gear shifting finger is provided with an operating rod extending outwards along the radial direction of the connecting shaft, a clamping ring is arranged at the end part of the operating rod, and a sliding rod arranged along the axial direction parallel to the connecting shaft is arranged at the end part of the first push rod;
or the end part of the control rod is provided with a sliding rod arranged in the axial direction parallel to the connecting shaft, and the end part of the first push rod is provided with a clamping ring;
the slide bar inserts in the snap ring, the snap ring can follow the axial of slide bar slides and can wind the central axis of slide bar is rotatory.
Preferably, the second driving mechanism comprises a second linear driving mechanism which is connected with the lower shifting finger and is used for driving the lower shifting finger to move, and an elastic reset mechanism which is connected between the upper shifting finger and the lower shifting finger and is used for driving the lower shifting finger to reset;
when the acting force of the second driving mechanism acting on the lower gear shifting finger is larger than the acting force of the elastic reset mechanism acting on the lower gear shifting finger, the lower gear shifting finger and the connecting shaft move together along the axial direction of the connecting shaft;
when the acting force of the second linear driving mechanism acting on the lower gear shifting finger is smaller than the acting force of the elastic reset mechanism acting on the lower gear shifting finger, the elastic reset mechanism drives the lower gear shifting finger to reset.
Preferably, the elastic return mechanism comprises a spring and a fixed seat;
the fixing base with casing fixed connection, the connecting axle with fixing base sliding connection, the spring housing is established on the connecting axle, the spring coupling go up shift indicate with between the fixing base.
Preferably, the second driving mechanism comprises a second linear reciprocating driving mechanism which drives the lower shifting finger and the connecting shaft to reciprocate together along the axial direction of the connecting shaft.
Preferably, the second driving mechanism comprises a second push rod and a second cylinder, a second piston is arranged on the second push rod and is arranged in the second cylinder in a sliding mode, a third oil inlet is formed in the second cylinder, and the second push rod is connected with the lower gear shifting finger.
Preferably, the lateral wall of the upper gear shifting finger is provided with a limiting groove, the gear shifting device further comprises a limiting pin which is used for being matched with the limiting groove to limit the rotating angle of the upper gear shifting finger, and the limiting pin is connected with the shell.
The utility model also discloses a transmission which comprises the gear selecting and shifting mechanism.
After adopting above-mentioned technical scheme, have following beneficial effect:
thereby this application shifts through on the drive of first actuating mechanism and indicates the action to drive down to shift and indicate to rotate around the central axis of connecting axle to the realization is shifted, shifts through the drive of second actuating mechanism and indicates and the connecting axle axial displacement along the connecting axle together, thereby realizes selecting the fender, and this application can control down to shift and indicate the action to realize selecting the fender and shifting through actuating mechanism, compact structure, and transmission efficiency is high.
Drawings
The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic diagram of the overall configuration of a gear selecting shifter in one embodiment of the present invention;
FIG. 2 is a schematic structural view of the gear selecting shifter with the housing removed in one embodiment of the present invention;
FIG. 3 is a schematic diagram of the internal structure of the gear selecting and shifting machine according to one embodiment of the present invention;
FIG. 4 is a top view of FIG. 2;
FIG. 5 is a schematic view of the internal structure of the first driving mechanism in one embodiment of the present invention;
FIG. 6 is a partial schematic view of the gear selection shifter in one embodiment of the present invention.
Reference symbol comparison table:
upper shift finger 1: the device comprises a control rod 11, a connector 12, a limiting groove 13 and a first pin shaft 14;
lower shift finger 2: a second pin 21;
the shell 4: a stopper pin 41;
first linear reciprocating mechanism 5: the first push rod 51, the bayonet 511, the first cylinder 52, the first oil inlet 521, the second oil inlet 522, the first chamber 523, the second chamber 524, the first piston 53, the first sealing ring 531 and the end cover 54;
second linear drive mechanism 6: a second push rod 61, a second cylinder 62, a third oil inlet 621, a second piston 63 and a second sealing ring 631;
elastic reset mechanism 7: spring 71, fixing base 72, mounting hole 721.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The foregoing is to be understood as belonging to the specific meanings in the present application as appropriate to the person of ordinary skill in the art.
The utility model discloses a gear selecting and shifting mechanism in some embodiments, which comprises an upper shifting finger 1, a lower shifting finger 2, a connecting shaft 3, a shell 4, a first driving mechanism and a second driving mechanism, as shown in fig. 1 and 2;
the connecting shaft 3 is fixedly connected with the upper gear shifting finger 1 and the lower gear shifting finger 2 respectively, and the connecting shaft 3 is arranged in the shell 4 in a sliding mode and can move in the direction parallel to the axial direction of the connecting shaft 3;
the first driving mechanism is connected with the upper gear shifting finger 1 and is used for driving the upper gear shifting finger 1 to rotate around the axis of the connecting shaft 3;
the second driving mechanism is connected with the lower gear shifting finger 2 and is used for driving the lower gear shifting finger 2 and the connecting shaft 3 to move together along the axial direction of the connecting shaft 3;
when the gear is selected, the second driving mechanism drives the lower gear shifting finger 2 and the connecting shaft 3 to move together along the axial direction of the connecting shaft 3;
when shifting gears, the first driving mechanism drives the upper gear shifting finger 1 to rotate and drives the lower gear shifting finger 2 to rotate through the connecting shaft 3.
In this application, when selecting the shelves, it indicates 2 and connecting axle 3 to shift down to move about from top to bottom along the axial of connecting axle 3 together through the drive of second actuating mechanism, when selecting the shelves and accomplish the back, shifts to indicate 1 rotation and to shift 2 rotations through connecting axle 3 drives down through the drive of first actuating mechanism drive to the realization is shifted. This application compact structure, transmission efficiency is high, and simple structure can reduce manufacturing cost.
Further, as shown in fig. 2, the upper shift finger 1 is fixedly connected with the upper portion of the connecting shaft 3 through a first pin 14, and the lower shift finger 2 is fixedly connected with the lower portion of the connecting shaft 3 through a second pin 21.
In some embodiments of the present invention, the first driving mechanism includes a first linear reciprocating motion mechanism 5, the first linear reciprocating motion mechanism 5 includes a first push rod 51 connected to the upper shift finger 1, and the first push rod 51 of the first linear reciprocating motion mechanism 5 drives the upper shift finger 1 to rotate around the axis of the connecting shaft 3 during gear selection.
Specifically, as shown in fig. 5, the first linear reciprocating mechanism 5 further includes a first cylinder 52, a first piston 53 is disposed on the first push rod 51, the first piston 53 is slidably disposed in the first cylinder 52 and divides the interior of the first cylinder 52 into a first chamber 523 and a second chamber 524, a first oil inlet 521 communicating with the first chamber 523 and a second oil inlet 522 communicating with the second chamber 524 are disposed on the first cylinder 52, and the first push rod 51 is connected to the upper shift finger 1.
As shown in fig. 5, the first push rod 51 is arranged perpendicular to the connecting shaft 3, one end of the first cylinder 52 is a closed end, the other end is an open end, the open end is provided with an end cover 54, and one end of the first push rod 51 penetrates through the end cover 54 and extends out of the first cylinder 52 and is connected with the upper shift finger 1. The first piston 53 is provided at the other end of the first push rod 51, the first piston 53 is provided inside the first cylinder 52, and the first piston 53 is provided with the first seal 531, thereby improving the sealing between the first piston 53 and the inner wall of the first cylinder 52.
The first oil inlet 521 and the second oil inlet 522 can be connected with an external electric control hydraulic system, oil is injected into the first oil inlet 521 and the second oil inlet 522 through the electric control hydraulic system, wherein the first oil inlet 521 is arranged on one side close to an open end, the second oil inlet 522 is arranged on one side close to a closed end, when the first oil inlet 521 is injected with oil, hydraulic oil is injected into the first cavity 523 and drives the first piston 53 to move to the left side shown in fig. 5, so that the first push rod 51 drives the upper shifting finger 1 to rotate counterclockwise, and the lower shifting finger 2 is driven to rotate counterclockwise. Similarly, when the oil is injected to the second oil inlet 522, the hydraulic oil is injected into the second chamber 524 and drives the first piston 53 to move to the right side shown in fig. 5, so that the upper shift finger 1 is driven to rotate clockwise by the first push rod 51, and the lower shift finger 2 is driven to rotate clockwise.
In some embodiments of the present invention, as shown in fig. 4 and 5, the upper shift finger 1 is provided with an operating lever 11 extending radially outward along the connecting shaft 3, the end of the first push rod 51 is provided with a bayonet 511, the end of the operating lever 11 is provided with a connector 12, the connector 12 is snapped into the bayonet 511, and the connector 12 can slide in the bayonet 511 along a direction parallel to the axial direction of the connecting shaft 3.
When the first push rod 51 stretches, the first push rod can drive the connecting head 12 to swing, and drive the operating rod 11 to rotate around the central point of the connecting shaft 3, so that the upper gear shifting finger 1 is driven to rotate through the operating rod 11. When the upper shifting finger 1 and the connecting shaft 3 move up and down along the axial direction of the connecting shaft 3, the control rod 11 moves up and down along with the upper shifting finger 1, and at the moment, the connector 12 can slide up and down along the axial direction parallel to the connecting shaft 3 in the bayonet 511, so that the movement of the upper shifting finger 1 along the axial direction parallel to the connecting shaft 3 is not limited.
In some embodiments of the present invention, the width of the connector 12 increases outward in the radial direction of the connecting shaft 3, the width of the bayonet 511 is greater than the maximum width of the connector 12, and the connector 12 can rotate in the bayonet 511.
Further, as shown in fig. 4, the circumferential surface of the connector 12 is a circular arc surface, which can prevent the connector 12 from being locked when rotating in the bayonet 511.
Optionally, the upper shift finger 1 is provided with an operating rod 11 extending along the radial direction of the connecting shaft 3, an end of the operating rod 11 is provided with a snap ring, and an end of the first push rod 51 is provided with a slide rod arranged along a direction parallel to the axial direction of the connecting shaft 3;
or the end part of the control rod 11 is provided with a sliding rod arranged along the direction parallel to the axial direction of the connecting shaft 3, and the end part of the first push rod 51 is provided with a clamping ring;
the slide bar inserts in the snap ring, and the snap ring can be followed the axial of slide bar and can be rotated around the central axis of slide bar.
When shifting, when first push rod 51 activity, the snap ring can be rotatory around the slide bar to it indicates 1 rotatory to shift gears through control lever 11 drive, and when selecting gears, control lever 11 slides from top to bottom along the axial of connecting axle 3, and the snap ring can slide from top to bottom along the axial of slide bar this moment, thereby can not interfere the activity that the last finger 1 that shifts gears.
In some embodiments of the present invention, as shown in fig. 2, the second driving mechanism includes a second linear driving mechanism 6 connected to the lower shift finger 2 and used for driving the lower shift finger 2 to move, and an elastic return mechanism 7 connected between the upper shift finger 1 and the lower shift finger 2 and used for driving the lower shift finger 2 to return;
when the acting force of the second linear driving mechanism 6 on the lower shifting finger 2 is larger than the acting force of the elastic reset mechanism 7 on the lower shifting finger 2, the lower shifting finger 2 and the connecting shaft 3 move together along the axial direction of the connecting shaft 3; when the acting force of the second linear driving mechanism 6 on the lower shifting finger 2 is smaller than the acting force of the elastic resetting mechanism 7 on the lower shifting finger 2, the elastic resetting mechanism 7 drives the lower shifting finger 2 to reset.
When the acting force applied by the downward gear shifting finger 2 of the second linear driving mechanism 6 is greater than the elastic force of the elastic reset mechanism 7, the downward gear shifting finger 2 is driven by the second linear driving mechanism 6 to move downwards, and when the acting force applied by the downward gear shifting finger 2 of the second linear driving mechanism 6 is less than the elastic force of the elastic reset mechanism 7, the upward movable reset of the downward gear shifting finger 2 is driven by the elastic reset mechanism 7, the whole structure can be simplified by arranging the elastic reset mechanism 7, so that the second linear driving mechanism 6 only needs to apply a unidirectional downward acting force to the downward gear shifting finger 2, and the change of the position of the downward gear shifting finger 2 and the connecting shaft 3 which slide together along the axial direction of the connecting shaft 3 is realized by adjusting the acting force applied by the downward gear shifting finger 2 of the second linear driving mechanism 6, and different gears are selected.
Gear selection in some embodiments of the present invention, as shown in fig. 2, the elastic return mechanism 7 comprises a spring 71 and a fixed seat 72;
fixing base 72 and casing 4 fixed connection, connecting axle 3 and fixing base 72 sliding connection, spring 71 cover is established on connecting axle 3, and spring 71 is connected between last shift finger 1 and fixing base 72.
Specifically, as shown in fig. 3, a mounting hole 721 is formed in the fixing seat 72, the connecting shaft 3 penetrates through the mounting hole 721 and enables the connecting shaft 3 to slide up and down along the axial direction of the mounting hole 721, the fixing seat 72 is arranged on one side close to the lower gear shifting finger 2, the fixing seat 72 is arranged above the lower gear shifting finger 2, the spring 71 is sleeved on the connecting shaft 3, the lower end of the spring 71 is abutted to the upper end face of the fixing seat 72, the upper end of the spring 71 is abutted to the bottom of the upper gear shifting finger 1, a connecting portion is formed in the fixing seat 72, and the connecting portion is fixedly connected with the housing 4 through a bolt. When the acting force exerted by the downward shift finger 2 of the second linear driving mechanism 6 is smaller than the elastic force of the spring 71, the spring 71 exerts an upward pushing force on the upper shift finger 1, so that the upper shift finger 1 drives the lower shift finger 2 to move upward through the connecting shaft 3 to a position where the upper end surface of the lower shift finger 2 contacts with the bottom surface of the fixed seat 72.
When the acting force applied by the downward gear shifting finger 2 of the second linear driving mechanism 6 is greater than the elastic force of the spring 71, the second linear driving mechanism 6 pushes the downward gear shifting finger 2 to move downward, the downward gear shifting finger 2 drives the upward gear shifting finger 1 to move downward through the connecting shaft 3, the spring 71 is compressed, so that gear selection is realized, after gear selection is completed, the driving acting force of the second linear driving mechanism 6 is cancelled, and the spring 71 pushes the upward gear shifting finger 1 upward under the action of the own elastic force, so that the downward gear shifting finger 2 is driven to reset. By adopting the spring 71 to reset the lower gear shifting finger 2, the axial size of the gear selecting and shifting mechanism can be reduced, the spatial arrangement is facilitated, and the response time of gear selecting can be prolonged.
Optionally, the second driving mechanism includes a second linear reciprocating driving mechanism for driving the lower shifting finger 2 and the connecting shaft 3 to reciprocate along the axial direction of the connecting shaft 3, specifically, the second linear reciprocating driving mechanism is a hydraulic telescopic rod, the hydraulic telescopic rod is connected with the lower shifting finger 2 through a universal joint, and the lower shifting finger 2 is driven by the hydraulic telescopic rod to move up and down.
Optionally, the connecting shaft 3 includes a first shaft body and a second shaft body, the second shaft body is sleeved on the outer wall of the first shaft body and can slide up and down along the axial direction of the first shaft body, a long hole/long groove arranged along the axial direction is formed in the side wall of the second shaft body, a limiting block inserted into the long hole/long groove is formed in the outer wall of the first shaft body, the limiting block can slide along the long hole/long groove along with the relative movement of the first shaft body and the second shaft body, the first shaft body is fixedly connected with the upper shift finger 1, the second shaft body is fixedly connected with the lower shift finger 2, when the upper shift finger 1 is driven by the first driving mechanism to rotate to drive the first shaft body to rotate, and meanwhile, the second shaft body rotates with the first shaft body under the action of the limiting block, so as to drive the lower shift finger 2 to rotate and shift gears. When the second linear driving mechanism drives the lower gear shifting finger 2 to move, the second shaft body slides along the axial direction of the first shaft body, and at the moment, the limiting block slides along the long hole/long groove.
Alternatively, the spring 71 is connected between the first shaft body and the second shaft body, specifically, an opening is formed in the second shaft body in the axial direction, the first shaft body is inserted into the opening, the spring 71 is arranged in the opening, one end of the spring 71 is connected with the end portion of the first shaft body, the other end of the spring 71 is connected with the bottom of the opening, and when the second linear driving mechanism 6 drives the shift finger 2 to move downward, the spring 71 stretches. When the second linear driving mechanism 6 cancels the driving force, the spring 71 is reset and pulls the lower shifting finger 2 to move and reset upwards.
In some embodiments of the present invention, as shown in fig. 3, the second linear driving mechanism 6 includes a second push rod 61 and a second cylinder 62, the second push rod 61 is provided with a second piston 63, the second piston 63 is slidably disposed in the second cylinder 62, the second cylinder 62 is provided with a third oil inlet 621, and the second push rod 61 is connected to the lower shift finger 2.
Further, as shown in fig. 3, the second push rod 61 is disposed parallel to the connecting shaft 3, and the second piston 63 is provided with a second sealing ring 631, so that the sealing performance between the second piston 63 and the inner wall of the second cylinder 62 is improved. One end of the second cylinder 62 is a closed end, the other end is an open end, one end of the second push rod 61 extends out of the second cylinder 62 from the open end and contacts with the upper end face of the lower shift finger 2, the second piston 63 is arranged at the other end of the second push rod 61 and is arranged in the second cylinder 62, the third oil inlet 621 is arranged on one side, close to the closed end, of the second cylinder 62, the third oil inlet 621 can be connected with an external electric control hydraulic system, oil is injected into the third oil inlet 621 through the electric control hydraulic system, the second piston 63 is driven to move downwards, the second push rod 61 is driven to move downwards, downward acting force is applied to the lower shift finger 2, the lower shift finger 2 is driven to move downwards, and after the oil injection pressure of the third oil inlet 621 is reduced, the lower shift finger 2 moves upwards and resets under the acting force of the spring 71.
In some embodiments of the present invention, as shown in fig. 1 and 6, the side wall of the upper shift finger 1 is provided with a limit groove 13, and further includes a limit pin 41 for cooperating with the limit groove 13 to limit the rotation angle of the upper shift finger 1, and the limit pin 41 is connected to the housing 4. Can restrict through spacing groove 13 and shift the biggest rotation angle that indicates 1 to the rotation angle that the finger 2 of shifting down when preventing to shift is too big to lead to shifting unclear, improves the precision of shifting.
In this application, when shifting gears, oil is injected to the first oil inlet 521 or the second oil inlet 522 through the electric control hydraulic system, so that the first push rod 51 is controlled to move and drive the upper shifting finger 1 to rotate around the axis of the connecting shaft 3, and the lower shifting finger 2 is driven by the connecting shaft 3 to rotate, thereby realizing shifting. When gear selection is performed, oil is injected into the third oil inlet 621 through the electric control hydraulic system, so that the second push rod 61 is driven to move downwards, the second push rod 61 pushes the lower gear shifting finger 2 to move downwards, and after the oil injection pressure of the third oil inlet 621 is reduced, the lower gear shifting finger 2 moves upwards and returns under the action of the elastic force of the spring 71. This application can control down through actuating mechanism and shift and indicate 2 actions to realize selecting gears and shifting gears, compact structure, and transmission efficiency is high.
The utility model also discloses a transmission which comprises the gear selecting and shifting mechanism.
Wherein, lower gear shifting indicates 2 and fork assembly is connected to through the rotation of lower gear shifting indicate 2 and the activity of going up and down drive fork assembly activity, thereby accomplish to select to keep off and shift gears.
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, several other modifications can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.
Claims (10)
1. A gear selecting and shifting mechanism is characterized by comprising an upper gear shifting finger (1), a lower gear shifting finger (2), a connecting shaft (3), a shell (4), a first driving mechanism and a second driving mechanism;
the connecting shaft (3) is fixedly connected with the upper gear shifting finger (1) and the lower gear shifting finger (2) respectively, and the connecting shaft (3) is arranged in the shell (4) in a sliding mode and can move along the axial direction of the connecting shaft (3);
the first driving mechanism is connected with the upper gear shifting finger (1) and is used for driving the upper gear shifting finger (1) to rotate around the axis of the connecting shaft (3);
the second driving mechanism is connected with the lower shifting finger (2) and is used for driving the lower shifting finger (2) and the connecting shaft (3) to move together along the axial direction of the connecting shaft (3);
when the gear is selected, the second driving mechanism drives the lower gear shifting finger (2) and the connecting shaft (3) to move together along the axial direction of the connecting shaft (3);
when the gear is shifted, the first driving mechanism drives the upper gear shifting finger (1) to rotate and drives the lower gear shifting finger (2) to rotate through the connecting shaft (3).
2. The gear selection shift mechanism according to claim 1, characterized in that the first drive mechanism comprises a first linear reciprocating mechanism (5), the first linear reciprocating mechanism (5) comprising a first push rod (51) connected with the upper shift finger (1).
3. The gear selecting and shifting mechanism according to claim 2, wherein the upper shifting finger (1) is provided with an operating rod (11) extending along the radial direction of the connecting shaft (3), the end of the first push rod (51) is provided with a bayonet (511), the end of the operating rod (11) is provided with a connector (12), the connector (12) is clamped into the bayonet (511), and the connector (12) can slide in the bayonet (511) along the axial direction parallel to the connecting shaft.
4. The gear selection and shift mechanism according to claim 3, wherein the width of the connecting head (12) increases radially outward of the connecting shaft (3), the width of the bayonet (511) is greater than the maximum width of the connecting head (12), and the connecting head (12) is rotatable in the bayonet (511).
5. The gear selecting and shifting mechanism according to claim 2, wherein the upper shift finger (1) is provided with an operating rod (11) extending radially outward along the connecting shaft (3), a snap ring is provided at an end of the operating rod (11), and a sliding rod is provided at an end of the first push rod (51) in a direction parallel to the axial direction of the connecting shaft (3);
or the end part of the control rod (11) is provided with a sliding rod arranged along the direction parallel to the axial direction of the connecting shaft (3), and the end part of the first push rod (51) is provided with a clamping ring;
the slide bar inserts in the snap ring, the snap ring can follow the axial of slide bar slides and can wind the central axis of slide bar is rotatory.
6. The gear selecting and shifting mechanism according to claim 1, wherein the second driving mechanism comprises a second linear driving mechanism (6) connected with the lower shifting finger (2) and used for driving the lower shifting finger (2) to move and an elastic resetting mechanism (7) connected between the upper shifting finger (1) and the lower shifting finger (2) and used for driving the lower shifting finger (2) to reset;
when the acting force of the second linear driving mechanism (6) acting on the lower shifting finger (2) is larger than the acting force of the elastic reset mechanism (7) acting on the lower shifting finger (2), the lower shifting finger (2) and the connecting shaft (3) move together along the axial direction of the connecting shaft (3);
when the acting force of the second linear driving mechanism (6) acting on the lower gear shifting finger (2) is smaller than the acting force of the elastic resetting mechanism (7) acting on the lower gear shifting finger (2), the elastic resetting mechanism (7) drives the lower gear shifting finger (2) to reset.
7. The gear selection shift mechanism according to claim 6, characterized in that the elastic return mechanism (7) comprises a spring (71) and a fixed seat (72);
fixing base (72) with casing (4) fixed connection, connecting axle (3) with fixing base (72) sliding connection, spring (71) cover is established on connecting axle (3), spring (71) are connected go up shift indicate (1) with between fixing base (72).
8. The gear selection shift mechanism according to claim 1, characterized in that the second drive mechanism comprises a second linear reciprocating drive mechanism that drives the lower shift finger (2) and the connecting shaft (3) to reciprocate together in the axial direction of the connecting shaft (3).
9. The gear selecting and shifting mechanism according to any one of claims 1 to 8, wherein a limiting groove (13) is formed in a side wall of the upper shifting finger (1), and a limiting pin (41) for limiting a rotation angle of the upper shifting finger (1) by matching with the limiting groove (13) is further included, and the limiting pin (41) is connected with the housing (4).
10. A transmission comprising a gear selection shift mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220027213.3U CN216519544U (en) | 2022-01-06 | 2022-01-06 | Gear selecting and shifting mechanism and transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220027213.3U CN216519544U (en) | 2022-01-06 | 2022-01-06 | Gear selecting and shifting mechanism and transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519544U true CN216519544U (en) | 2022-05-13 |
Family
ID=81517420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220027213.3U Active CN216519544U (en) | 2022-01-06 | 2022-01-06 | Gear selecting and shifting mechanism and transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519544U (en) |
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2022
- 2022-01-06 CN CN202220027213.3U patent/CN216519544U/en active Active
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