CN113969973A - Return mechanism and transmission assembly - Google Patents
Return mechanism and transmission assembly Download PDFInfo
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- CN113969973A CN113969973A CN202010639257.7A CN202010639257A CN113969973A CN 113969973 A CN113969973 A CN 113969973A CN 202010639257 A CN202010639257 A CN 202010639257A CN 113969973 A CN113969973 A CN 113969973A
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- shaft
- return mechanism
- return
- gear
- gear selecting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 83
- 230000005540 biological transmission Effects 0.000 title abstract description 24
- 238000003780 insertion Methods 0.000 claims description 23
- 230000037431 insertion Effects 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 7
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 16
- 239000004519 grease Substances 0.000 description 8
- 230000001050 lubricating effect Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0213—Selector apparatus with sealing means, e.g. against entry of dust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/34—Generation or transmission of movements for final actuating mechanisms comprising two mechanisms, one for the preselection movement, and one for the shifting movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/0295—Selector apparatus with mechanisms to return lever to neutral or datum position, e.g. by return springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention provides a return mechanism and a transmission assembly, the return mechanism comprising: a cap assembly; a shift shaft; shifting a gear and pulling out a head; the connecting plate is arranged in the top cover assembly; the return piece is arranged in the top cover assembly, one end of the return piece is connected with the top cover assembly, and the other end of the return piece is connected with the gear selecting shaft. According to the technical scheme, the gear selecting shaft and the connecting plate rotate reversely through the resilience force generated by the return piece, so that the gear shifting head slides to the initial position. Need not like in the correlation technique, set up a spring respectively at the both ends of selector shaft, the power that resets through the spring production will shift the shifting tap and pull back initial position, and the part processing of return mechanism among the correlation technique is troublesome like this, and the loaded down with trivial details problem of return mechanism equipment has been avoided to reduce return mechanism's manufacturing cost has improved return mechanism's packaging efficiency simultaneously.
Description
Technical Field
The invention relates to the technical field of automobile transmissions, in particular to a return mechanism and a transmission assembly.
Background
At present, the return piece among most automotive transmission return mechanism sets up on the selector shaft, specifically for respectively setting up a spring at selector shaft both ends, warp the restoring force that produces through above-mentioned two springs and carry out the return to the shifting tap, thereby realized automotive transmission's selection and kept off the return function. However, the spring needs to be installed and positioned in the return mechanism, which requires machining and positioning structures on corresponding parts of the return mechanism, which increases the difficulty in machining the parts. In addition, two springs are required to be assembled on the return mechanism, so that the assembly difficulty of the return mechanism is increased.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, it is an object of the present invention to provide a return mechanism.
It is another object of the present invention to provide a transmission assembly.
In order to achieve the above object, an embodiment of the present invention provides a return mechanism, including: a cap assembly having a first mounting hole extending in a first direction and a second mounting hole extending in a second direction; the gear selecting shaft is rotatably arranged in the first mounting hole; the gear shifting shaft is rotatably arranged in the second mounting hole; the gear shifting head is arranged on the gear shifting shaft and can slide on the gear shifting shaft along a second direction; the connecting plate is arranged in the top cover assembly, one end of the connecting plate is connected with the gear selecting shaft, and the other end of the connecting plate is connected with the gear shifting shaft; the return piece is arranged in the top cover assembly, one end of the return piece is connected with the top cover assembly, and the other end of the return piece is connected with the gear selecting shaft; wherein, under the action of external force, the gear selecting shaft rotates to drive the connecting plate to rotate; when the connecting plate rotates, the return piece deforms to generate resilience force, and the connecting plate drives the gear shifting head to slide on the gear shifting shaft, so that the gear shifting head slides to a gear shifting position from an initial position; when external force is not applied to the gear selecting shaft, the gear selecting shaft and the connecting plate rotate reversely under the action of resilience force, so that the gear shifting head slides to the initial position.
In this technical scheme, the one end and the top cap subassembly of return piece are connected, and the other end and the selection fender axle of return piece are connected, and the resilience force that produces through the return piece makes selection fender axle and connecting plate antiport to make the shifting tap-offs slide to initial position. Need not like among the correlation technique, set up a spring respectively at the both ends of selector shaft, the power that resets through the spring production pulls back initial position with the shifting tap, and the part processing of return mechanism among the correlation technique is troublesome like this, and the loaded down with trivial details problem of return mechanism equipment has been avoided to reduce return mechanism's manufacturing cost, improved return mechanism's packaging efficiency simultaneously.
In addition, the return mechanism in the above embodiment provided by the present invention may further have the following additional technical features:
in the above technical scheme, the top cover assembly further has a third mounting hole extending along the first direction, the third mounting hole is communicated with the first mounting hole, and the return member is arranged on the periphery of the gear selecting shaft and located in a cavity formed by the third mounting hole and the gear selecting shaft.
In this technical scheme, with the return spare setting in the cavity that third mounting hole and select the fender axle formed, be convenient for like this with the one end fixed connection top cap subassembly of return spare on to can take place to warp and produce the resilience force when guaranteeing the return spare atress, and then ensure the work that return mechanism can be normal. In addition, the annular cavity can contain lubricating grease, so that the return piece is always soaked in the lubricating grease, the return mechanism is prevented from being failed due to rusting, and the working stability and reliability of the return piece are ensured.
In any one of the above technical solutions, the bottom of the third mounting hole is provided with a first insertion hole, and one end of the return member is inserted into the first insertion hole so as to fix one end of the return member on the top cover assembly.
In the technical scheme, one end of the return piece is fixed on the top cover component through the insertion fit of the return piece and the first insertion hole. The matching mode is simple and reliable, the processing requirement on the first plug hole is low, the assembly requirement on the return member is low, the manufacturing cost of the return mechanism is saved, and the assembly efficiency of the return mechanism is improved.
In any of the above technical solutions, a shoulder is provided on the gear selecting shaft, a second insertion hole is provided on an end surface of the shoulder, and the other end of the return member is inserted into the second insertion hole to fix the other end of the return member on the gear selecting shaft.
In the technical scheme, one end of the return piece is fixed on the gear selecting shaft through the insertion fit of the return piece and the second insertion hole. The matching mode is simple and reliable, the processing requirement on the second plug hole is low, the assembly requirement on the return member is low, the manufacturing cost of the return mechanism is saved, and the assembly efficiency of the return mechanism is improved.
In any of the above solutions, the return member comprises a torsion spring.
In the technical scheme, the gear selecting shaft and the connecting plate are rotated by the torsional force generated by the torsional spring, so that the gear shifting head slides to the initial position. Therefore, the transmission of the automobile can be automatically returned to the neutral position, the driving difficulty of a driver is reduced, the safety accident rate is reduced, and the driving safety of the driver is improved.
In any of the above technical solutions, the return mechanism further includes a first sealing element and a second sealing element, the first sealing element is disposed on an outer periphery of the gear selecting shaft, the first sealing element is located in a first annular cavity formed between the head cover assembly and the gear selecting shaft, or/and the second sealing element is disposed on an outer periphery of the gear shifting shaft, and the second sealing element is located in a second annular cavity formed between the head cover assembly and the gear shifting shaft.
In the technical scheme, the sealing parts (the first sealing part and the second sealing part) can seal annular cavities (the first annular cavity and the second annular cavity) formed between the shafts (the gear selecting shaft and the gear shifting shaft) and the top cover assembly, so that external dust is prevented from entering the annular spaces to cause the rotating shaft to rotate and jam or the rotating efficiency is low, and the rotating shaft can be ensured to rotate normally. In addition, the sealing element can seal grease in the annular cavity, so that enough grease can be ensured to lubricate when the shaft rotates, and the rotating shaft can rotate efficiently.
In any of the above technical solutions, the return mechanism further includes a snap ring, the snap ring is clamped on the gear selecting shaft, and the gear selecting shaft is borne on the top cover assembly through the snap ring.
In this technical scheme, can be with selecting the weight that keeps off the axle through the snap ring, the connecting plate bears on top cap subassembly with the most weight of shifting the pulling head, has reduced the frictional force between shifting the pulling head and the axle that keeps off the gear like this, has improved the epaxial slip efficiency of shifting the pulling head at the gear shifting to ensure return mechanism can normal work.
In any one of the above technical solutions, the return mechanism further includes a retainer ring disposed on an outer periphery of the gear selecting shaft, and the retainer ring is located between the snap ring and the top cover assembly.
In this technical scheme, the retaining ring can bear the weight of snap ring and selection gear axle, the connecting plate with shift the most weight of pulling the head on top cap assembly, has reduced the frictional force between shifting the pulling head and the gear axle like this, has improved the epaxial slip efficiency of shifting the pulling head at the gear shifting to ensure the work that return mechanism can be normal.
In any of the above technical solutions, the return mechanism further includes a shift arm, and the shift arm is connected to the gear selecting shaft and/or the gear shifting shaft.
In this technical scheme, keep off the arm and be connected with outside application of force spare, outside application of force spare utilizes the arm of keeping off to pivot selection gear axle and gear shift shaft application revolving force, ensures the normal work of return mechanism like this.
An aspect of the second aspect of the present invention provides a transmission assembly, including a transmission bottom cover assembly and a return mechanism disposed on the transmission bottom cover assembly, wherein the return mechanism is the return mechanism of any one of the first aspects.
The transmission assembly provided by the second aspect of the present invention includes the return mechanism according to any one of the first aspect of the present invention, so that all the advantages of any one of the above-mentioned technical solutions are achieved, and details are not repeated herein.
In the scheme, the return mechanism in the application enables the transmission assembly to have the functions of gear selection, gear selection return and gear shifting. Simultaneously, select in this application return mechanism to keep off axle, connecting plate and shift the pullout welded connection together, make the precision of shifting of derailleur subassembly in this application higher like this.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic structural view of a return mechanism according to an embodiment of the invention;
fig. 2 shows a cross-sectional view of the return mechanism a-a of fig. 1.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:
10. a cap assembly; 16. a third mounting hole; 162. a first plug hole; 20. selecting a gear shaft; 22. a shoulder; 222. a second plug hole; 30. a shift shaft; 40. shifting a gear and pulling out a head; 50. a connecting plate; 60. a return member; 72. a first seal member; 74. a second seal member; 80. a snap ring; 90. a retainer ring; 100. a catch arm; 110. a gear-in rod; 130. positioning pins; 140. a plug sheet.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
It should be noted that the first direction in this application refers to a vertical direction in fig. 2, and the second direction refers to a horizontal direction in fig. 2. Wherein the first direction and the second direction are perpendicular to each other.
A return mechanism according to some embodiments of the present invention is described below with reference to fig. 1 and 2.
As shown in fig. 1, the present invention and the embodiment of the present invention provide a return mechanism, which includes a cover assembly 10, a gear selecting shaft 20, a gear shifting shaft 30, a gear shifting knob 40, a connecting plate 50 and a return member 60. The top cover assembly 10 has a first mounting hole extending along a first direction and a second mounting hole extending along a second direction. The gear selecting shaft 20 is rotatably arranged in the first mounting hole; and a shift shaft 30 rotatably disposed in the second mounting hole. And a shift knob 40 provided on the shift shaft 30, the shift knob 40 being slidable on the shift shaft 30 in the second direction. And a connecting plate 50 disposed in the head assembly 10, one end of the connecting plate 50 being connected to the gear selecting shaft 20, and the other end of the connecting plate 50 being connected to the gear shifting shaft 30. And the return member 60 is arranged in the top cover assembly 10, one end of the return member 60 is connected with the top cover assembly 10, and the other end of the return member 60 is connected with the gear selecting shaft 20. Under the action of external force, the gear selecting shaft 20 rotates to drive the connecting plate 50 to rotate; when the connecting plate 50 rotates, the return member 60 deforms to generate a resilient force, and the connecting plate 50 drives the shift rod 40 to slide on the shift shaft 30, so that the shift rod 40 slides from the initial position to the shifting position. When no external force is applied to the gear selecting shaft 20, the gear selecting shaft 20 and the connecting plate 50 rotate in opposite directions under the action of the resilient force, so that the gear shifting knob 40 slides to the initial position.
In the above arrangement, one end of the return member 60 is connected to the top cover assembly 10, the other end of the return member 60 is connected to the gear selecting shaft 20, and the gear selecting shaft 20 and the connecting plate 50 are rotated in opposite directions by the resilient force generated when the return member 60 is deformed, so that the gear shifting head 40 slides to the initial position. Need not like in the correlation technique, set up a spring respectively at the both ends of selector shaft 30, pull back initial position through the reset force that the spring produced with shift shifting head 40, avoided the part processing trouble of return mechanism among the correlation technique like this, the loaded down with trivial details problem of return mechanism equipment to reduce return mechanism's manufacturing cost, improved return mechanism's packaging efficiency simultaneously.
Specifically, as shown in fig. 1, in the embodiment of the present invention, the cover assembly 10 further has a third mounting hole 16 extending along the first direction, the third mounting hole 16 is communicated with the first mounting hole, and the return member 60 is disposed on the outer periphery of the gear selecting shaft 20 and is located in a cavity formed by the third mounting hole 16 and the gear selecting shaft 20.
In the above arrangement, the return piece 60 is disposed in the cavity formed by the third mounting hole 16 and the gear selecting shaft 20, so that one end of the return piece 60 is fixedly connected to the top cover assembly 10, and therefore it is ensured that the return piece 60 can deform to generate a resilience force when being stressed, and the return mechanism can work normally. In addition, the annular cavity can contain lubricating grease, so that the return piece 60 is always soaked in the lubricating grease, the return mechanism is prevented from failing due to rusting, and the working stability and reliability of the return piece 60 are ensured.
Specifically, as shown in fig. 1, in the embodiment of the present invention, the bottom of the third mounting hole 16 is provided with a first insertion hole 162, and one end of the return member 60 is inserted into the first insertion hole 162 to fix one end of the return member 60 to the cap assembly 10.
In the above arrangement, one end of the return member 60 is fixed to the top cap assembly 10 by the insertion fit of the return member 60 with the first insertion hole 162. This kind of cooperation mode is simple and reliable, and is low to the processing requirement of first spliced eye 162, and is low to the assembly requirement of return 60, has so not only practiced thrift return mechanism's manufacturing cost, has improved return mechanism's assembly efficiency moreover.
Specifically, as shown in fig. 1, in the embodiment of the present invention, a shoulder 22 is disposed on the gear selecting shaft 20, a second insertion hole 222 is disposed on an end surface of the shoulder 22, and the other end of the return member 60 is inserted into the second insertion hole 222 to fix the other end of the return member 60 on the gear selecting shaft 20.
In the above arrangement, one end of the return member 60 is fixed on the gear selecting shaft 20 by the insertion fit of the return member 60 and the second insertion hole 222. The matching mode is simple and reliable, the processing requirement on the second plug hole 222 is low, and the assembly requirement on the return member 60 is low, so that the manufacturing cost of the return mechanism is saved, and the assembly efficiency of the return mechanism is improved.
Of course, depending on the actual situation, instead of providing the shoulder 22 on the gear selection shaft 20, a stop ring may be provided on the outer circumference of the gear selection shaft 20, and the second insertion hole 222 may be provided on the stop ring.
Specifically, as shown in fig. 1, the return member 60 includes a torsion spring. The torsion spring is sleeved on the gear selecting shaft 20, one end of the torsion spring is inserted into the first insertion hole 162, and the other end of the torsion spring is inserted into the second insertion hole 222.
In the above arrangement, the rotational force generated by the torsion spring rotates the shift shaft 20 and the connecting plate 50, so that the shift knob 40 slides to the initial position. Therefore, the transmission of the automobile can be automatically returned to the neutral position, the driving difficulty of a driver is reduced, the safety accident rate is reduced, and the driving safety of the driver is improved.
Specifically, as shown in fig. 1 and 2, in the embodiment of the present invention, the return mechanism further includes a first seal 72 and a second seal 74, the first seal 72 is disposed at an outer periphery of the shift shaft 20, the first seal 72 is located in a first annular cavity formed between the head cover assembly 10 and the shift shaft 20, the second seal 74 is disposed at an outer periphery of the shift shaft 30, and the second seal 74 is located in a second annular cavity formed between the head cover assembly 10 and the shift shaft 30.
In the above arrangement, the sealing members (the first sealing member 72 and the second sealing member 74) can seal the annular chambers (the first annular chamber and the second annular chamber) formed between the rotating shaft (the shift shaft 20 and the shift shaft 30) and the top cover assembly 10, and prevent external dust from entering the annular spaces, which causes the rotating shaft to be jammed or rotate inefficiently, thereby ensuring that the rotating shaft can rotate normally. In addition, the sealing element can seal grease in the annular cavity, so that enough grease can be ensured to lubricate when the shaft rotates, and the rotating shaft can rotate efficiently.
Specifically, as shown in fig. 1 and 2, the sealing element adopts an oil seal, and the oil seal is a standard component, so that the purchase and later maintenance and replacement are facilitated, and the maintenance cost of the return mechanism can be reduced. Of course, an elastic sealing member, such as an O-ring or a lip-ring, may be used depending on the actual situation.
Specifically, as shown in fig. 1 and 2, in the embodiment of the present invention, the return mechanism further includes a snap ring 80, the snap ring 80 is snapped on the gear selecting shaft 20, and the gear selecting shaft 20 is carried on the cap assembly 10 through the snap ring 80.
In the above arrangement, the weight of the gear selecting shaft 20, the connecting plate 50 and most of the weight of the gear shifting head 40 can be borne on the top cover assembly 10 through the snap ring 80, so that the friction between the gear shifting head 40 and the gear shifting shaft 30 is reduced, the sliding efficiency of the gear shifting head 40 on the gear shifting shaft 30 is improved, and the normal operation of the return mechanism is ensured.
Specifically, as shown in fig. 1, the gear selecting shaft 20, the connecting plate 50 and the shift knob 40 are welded together. In the above arrangement, when the gear selecting shaft 20 rotates, the gear selecting shaft 20, the connecting plate 50 and the gear shifting head 40 do not rotate relative to each other, that is, the gear selecting shaft 20 rotates by a preset angle, and the gear shifting head 40 can accurately slide to a preset position, so that the rotation precision of the return mechanism is ensured, and the transmission can accurately select and return the gear.
Specifically, as shown in fig. 1 and 2, in the embodiment of the present invention, the return mechanism further includes a retainer ring 90, the retainer ring 90 is disposed on the outer periphery of the selector shaft 20, and the retainer ring 90 is located between the retainer ring 80 and the head assembly 10.
In the above arrangement, the retainer ring 90 can bear most of the weight of the snap ring 80 and the gear selecting shaft 20, the weight of the connecting plate 50 and the gear shifting head 40 on the top cover assembly 10, so that the friction force between the gear shifting head 40 and the gear shifting shaft 30 is reduced, the sliding efficiency of the gear shifting head 40 on the gear shifting shaft 30 is improved, and the return mechanism can work normally.
It should be noted that the seal (first seal 72) on the outer periphery of the shift shaft 20 is disposed in a corresponding mounting cavity (second annular cavity) in the head assembly 10, and if the opening diameter of the mounting cavity is larger than the outer diameter of the snap ring 80, a retainer ring 90 is required to be disposed for supporting the snap ring 80 and the shift shaft 30.
Specifically, as shown in fig. 1 and 2, in the embodiment of the present invention, the return mechanism further includes a shift arm 100, the shift arm 100 is connected to the select shaft 20, and the shift arm 100 is connected to the shift shaft 30.
In the above arrangement, the stopper arm 100 is connected to an external urging member for applying a rotational force to the rotary shaft selector shaft 20 and the shift shaft 30 by the stopper arm 100, thereby ensuring a normal operation of the return mechanism.
A second aspect of the present invention provides a transmission assembly including a transmission bottom cover assembly and a return mechanism disposed on the transmission bottom cover assembly.
In the above-mentioned setting, return mechanism in this application makes the derailleur subassembly have the function of selecting a gear, selecting a gear return and shifting. Simultaneously, select in this application return mechanism to keep off axle 20, connecting plate 50 and shift the shifting knob 40 welded connection together, make the precision of shifting of the derailleur subassembly in this application higher like this.
As shown in fig. 1 and 2, the head assembly 10 is provided with an oil seal (first seal 72 and second seal 74) and a plug 140, and the shift shaft 30 is inserted into the head assembly 10 and the shift knob 40 from one side (second direction) and then fixed by inserting the positioning pin 130. The return piece 60 (torsion spring) is installed in the top cover assembly 10, the torsion spring needs to be inserted into a small hole (a first inserting hole 162) of the top cover assembly 10, the gear selecting shaft 20 sequentially penetrates through the torsion spring from the lower part (the first direction), the end part of the torsion spring needs to be aligned with a small hole (a second inserting hole 222) on the gear selecting shaft 20, the top cover assembly 10 is fixed by using a snap ring 80, the gear arm 100 is installed finally, and the gear arm 100 is fixed by using a nut. The arm 100 is forced to rotate clockwise or counterclockwise, so as to drive the gear selecting shaft 20 and the gear shifting head 40 to move, and the force is removed and then automatically returns to the initial position through the torsion spring.
It should be noted that, as shown in fig. 1 and fig. 2, the shift knob 40 is provided with a shift lever 110, a plurality of shift slots are provided below the shift lever 110, the shift arm 100 on the shift shaft 20 is rotated to slide the shift lever 110 of the shift knob 40 to a preselected shift position, so as to implement the shift function of the transmission assembly, and then the shift arm 100 on the shift shaft 30 is rotated to engage the shift lever 110 to the preselected shift position, so as to implement the shift function of the transmission assembly. When the gear-in lever 110 is not engaged in the pre-selected gear, no external force is applied to the arm 100 on the gear-selecting shaft 20, and the gear-shifting tap 40 will return to the initial position under the action of the resilient force, i.e. the gear-in lever 110 returns to the neutral position under the action of the resilient force, thus realizing the gear-selecting return function of the transmission assembly.
The transmission assembly provided by the technical scheme of the second aspect of the present invention includes the return mechanism in any one of the embodiments of the first aspect, so that all the advantages of any one of the embodiments are achieved, and details are not repeated herein.
From the above description, it can be seen that one end of the return member 60 is connected to the cover assembly 10, the other end of the return member 60 is connected to the gear selecting shaft 20, and the gear selecting shaft 20 and the connecting plate 50 are rotated in opposite directions by the resilient force generated by the return member 60, so that the gear shifting knob 40 slides to the initial position. Springs do not need to be arranged at two ends of the gear shifting shaft 30 respectively as in the related art, and the gear shifting head 40 is pulled back to the initial position through the reset force generated by the springs, so that the problems that parts of a return mechanism in the related art are troublesome to process and the return mechanism is complicated to assemble are solved, the manufacturing cost of the return mechanism is reduced, and the assembly efficiency of the return mechanism is improved; the torque force generated by the torsion spring of the return member 60 rotates the shift shaft 20 and the connecting plate 50, thereby sliding the shift knob 40 to the initial position. Therefore, the transmission of the automobile can be automatically returned to the neutral position, the driving difficulty of a driver is reduced, the safety accident rate is reduced, and the driving safety of the driver is improved.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A return mechanism, comprising:
a cap assembly (10) having a first mounting hole extending in a first direction and a second mounting hole extending in a second direction;
the gear selecting shaft (20) is rotatably arranged in the first mounting hole;
a shift shaft (30) rotatably disposed in the second mounting hole;
a shift knob (40) provided on the shift shaft (30), the shift knob (40) being slidable on the shift shaft (30) in the second direction;
a connecting plate (50) arranged in the top cover assembly (10), wherein one end of the connecting plate (50) is connected with the gear selecting shaft (20), and the other end of the connecting plate (50) is connected with the gear shifting shaft (30);
the resetting piece (60) is arranged in the top cover assembly (10), one end of the resetting piece (60) is connected with the top cover assembly (10), and the other end of the resetting piece (60) is connected with the gear selecting shaft (20);
under the action of external force, the gear selecting shaft (20) rotates to drive the connecting plate (50) to rotate; the return piece (60) deforms to generate a resilience force while the connecting plate (50) rotates, and the connecting plate (50) drives the shifting block (40) to slide on the shifting shaft (30) so that the shifting block (40) slides from an initial position to a shifting position; when no external force is applied to the gear selecting shaft (20), under the action of the resilience force, the gear selecting shaft (20) and the connecting plate (50) rotate reversely, so that the gear shifting head (40) slides to the initial position.
2. A return mechanism according to claim 1, wherein the cover assembly (10) further has a third mounting hole (16) extending in the first direction, the third mounting hole (16) communicates with the first mounting hole, and the return member (60) is disposed at an outer periphery of the gear selecting shaft (20) and located in a cavity formed by the third mounting hole (16) and the gear selecting shaft (20).
3. The return mechanism as claimed in claim 2, wherein a first insertion hole (162) is formed at a bottom of the third mounting hole (16), and one end of the return member (60) is inserted into the first insertion hole (162) to fix one end of the return member (60) to the cap assembly (10).
4. The return mechanism according to claim 2, wherein a shoulder (22) is provided on the gear selecting shaft (20), a second insertion hole (222) is provided on an end surface of the shoulder (22), and the other end of the return member (60) is inserted into the second insertion hole (222) to fix the other end of the return member (60) on the gear selecting shaft (20).
5. A return mechanism according to any one of claims 1 to 4, characterized in that the return member (60) comprises a torsion spring.
6. A return mechanism according to any one of claims 1 to 4, further comprising a first seal (72) and a second seal (74), the first seal (72) being provided at the outer periphery of the selector shaft (20), the first seal (72) being located in a first annular cavity formed between the head assembly (10) and the selector shaft (20), or/and the second seal (74) being provided at the outer periphery of the shift shaft (30), the second seal (74) being located in a second annular cavity formed between the head assembly (10) and the shift shaft (30).
7. A return mechanism according to any one of claims 1 to 4, further comprising a snap ring (80), wherein the snap ring (80) is snapped onto the gear selecting shaft (20), and wherein the gear selecting shaft (20) is carried on the head assembly (10) via the snap ring (80).
8. A return mechanism according to claim 7, further comprising a retainer ring (90), the retainer ring (90) being arranged on the outer circumference of the selector shaft (20), the retainer ring (90) being located between the snap ring (80) and the head assembly (10).
9. Return mechanism according to one of the claims 1 to 4, characterized in that the return mechanism further comprises a catch arm (100), wherein the catch arm (100) is connected to the selector shaft (20) and/or wherein the catch arm (100) is connected to the selector shaft (30).
10. A variator assembly comprising a variator bottom cover assembly and a return mechanism provided on the variator bottom cover assembly, the return mechanism being as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010639257.7A CN113969973A (en) | 2020-07-06 | 2020-07-06 | Return mechanism and transmission assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010639257.7A CN113969973A (en) | 2020-07-06 | 2020-07-06 | Return mechanism and transmission assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113969973A true CN113969973A (en) | 2022-01-25 |
Family
ID=79584507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010639257.7A Pending CN113969973A (en) | 2020-07-06 | 2020-07-06 | Return mechanism and transmission assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113969973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893564A (en) * | 2022-04-07 | 2022-08-12 | 浙江万里扬股份有限公司 | Transmission mechanism and vehicle |
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| JPH0842688A (en) * | 1994-07-30 | 1996-02-16 | Suzuki Motor Corp | Shift operation mechanism for transmission |
| JPH1122823A (en) * | 1997-07-02 | 1999-01-26 | Hino Motors Ltd | Gear shift mechanism of transmission |
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| CN114893564A (en) * | 2022-04-07 | 2022-08-12 | 浙江万里扬股份有限公司 | Transmission mechanism and vehicle |
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