阅读说明：本技术 变速箱和车辆 (Gearbox and vehicle ) 是由 徐卫权 刘婉 姜勇俊 赵后华 胡楚金 伊东明 李小建 于 2020-04-27 设计创作，主要内容包括：本发明提供了一种变速箱和车辆,其中,变速箱包括：壳体、驱动轴、选换挡拨头和倒挡定位销组件,驱动轴设于壳体上选换挡拨头被配置为套设于驱动轴以与驱动轴固定连接,选换挡拨头的外周形成有限位部；倒挡定位销组件设置在壳体上,选换挡拨头能够相对倒挡定位销移动,限位部能够与倒挡定位销组件相抵,通过设置选换挡拨头与倒挡定位销组件相抵,倒挡定位销组件对选换挡拨头提供阻挡力,使得一挡挡位、二挡挡位和倒挡挡位的选挡位置和其它挡位的选挡位置进行明确区分,驾驶员在执行换挡过程中能够通过挡把感受到选换挡拨头是否移动至一挡挡位、二挡挡位和倒挡挡位的选挡位置,有效提高驾驶体验和驾驶安全性。(The invention provides a transmission and a vehicle, wherein the transmission comprises: the gear selecting and shifting device comprises a shell, a driving shaft, a gear selecting and shifting head and a reverse gear positioning pin assembly, wherein the driving shaft is arranged on the shell, the gear selecting and shifting head is configured to be sleeved on the driving shaft so as to be fixedly connected with the driving shaft, and a limiting part is formed on the periphery of the gear selecting and shifting head; the reverse gear locating pin component is arranged on the shell, the gear selecting and shifting head can move relative to the reverse gear locating pin, the limiting portion can be abutted to the reverse gear locating pin component, the gear selecting and shifting head is abutted to the reverse gear locating pin component through the setting, the reverse gear locating pin component provides blocking force for the gear selecting and shifting head, one gear is enabled to be located, the gear selecting position of the gear and the reverse gear and the gear selecting position of other gears are clearly distinguished, a driver can feel whether the gear selecting and shifting head moves to the gear of the first gear or not through the gear in the gear shifting process, the gear selecting position of the gear and the reverse gear is enabled to be located, and driving experience and driving safety are effectively improved.)

1. A transmission, comprising:

a housing;

the driving shaft is arranged on the shell;

the gear selecting and shifting head is configured to be sleeved on the driving shaft to be fixedly connected with the driving shaft, and a limiting part is formed on the periphery of the gear selecting and shifting head;

the reverse gear positioning pin assembly is arranged on the shell, the gear selecting and shifting head can move relative to the reverse gear positioning pin, and after the gear selecting and shifting head moves to a preset gear selecting position, the limiting part can abut against the reverse gear positioning pin assembly.

2. The transmission of claim 1, wherein the reverse drive dowel assembly comprises:

the reverse gear positioning pin is arranged on the shell, a first accommodating cavity is formed in the shell, and part of the reverse gear positioning pin is at least partially exposed out of the first accommodating cavity so that the reverse gear positioning pin can abut against the limiting part;

the first elastic piece is arranged in the first accommodating cavity and is configured to push the reverse gear positioning pin.

3. The transmission of claim 2, wherein the limiting portion comprises:

the guide slope platform can push the reverse gear positioning pin to move towards the first accommodating cavity.

4. The transmission of claim 3, further comprising:

the reverse gear switch is arranged in the shell, and the reverse gear positioning pin is constructed to push the reverse gear switch so as to be conducted.

5. The transmission of claim 2, further comprising:

the first fixing block and the second fixing block are arranged on the driving shaft;

the first positioning pin assembly and the second positioning pin assembly are arranged on the shell, the first end of the first positioning pin assembly abuts against the periphery of the first fixing block, and the periphery of the second positioning pin abuts against the periphery of the second fixing block;

the neutral switch is arranged on the shell, the position where the first positioning pin assembly abuts against the first fixing block is switched from a first position to a second position, and the second fixing block pushes the second end of the second positioning pin assembly to abut against the neutral switch so that the neutral switch is conducted.

6. The gearbox according to claim 5, characterized in that positioning grooves are respectively formed in one sides, away from the driving shaft, of the first fixing block and one side, away from the driving shaft, of the second fixing block, the cross section of each positioning groove along the axial direction of the driving shaft is arc-shaped, and at least three positioning grooves are formed in the first fixing block;

the first and second dowel assemblies each include:

the positioning pin is arranged on the shell, a second accommodating cavity is formed in the shell, the positioning pin is at least partially exposed out of the second accommodating cavity, and the positioning pin is configured to push the neutral switch so as to enable the neutral switch to be conducted;

the second elastic piece is positioned in the second accommodating cavity and is configured to push the positioning pin so that the positioning pin can abut against the positioning groove.

7. The transmission of claim 2, further comprising:

and the third elastic piece is arranged in the shell, a third accommodating cavity for accommodating the third elastic piece is formed in the shell, and two ends of the third elastic piece are fixed on the driving shaft.

8. The transmission of claim 2, further comprising:

a vent plug disposed on the housing, the vent plug configured to vent gas within the housing.

9. The transmission of claim 2, further comprising:

the gear selecting driving piece is rotatably connected to the shell;

the connecting arm is arranged on the periphery of the gear selecting driving piece, the driving shaft and the gear selecting and shifting head are provided with gear selecting grooves for containing the connecting arm, and the connecting arm is configured to be suitable for pushing the driving shaft to move along the axis direction.

10. A vehicle, characterized by comprising:

a gearbox according to any one of claims 1 to 9;

a vehicle body;

a mounting portion provided on the vehicle body, the mounting portion adapted to be connected with the transmission.

Technical Field

The invention belongs to the technical field of vehicle equipment, and particularly relates to a gearbox and a vehicle.

Background

In order to improve the dynamic property and the fuel economy of the whole vehicle, the trend of multiple gears of a truck transmission is very obvious, however, the following problems exist in the gear shifting process:

when a driver shifts gears by using a gear handle in a vehicle, the gear selection position of a reverse gear and the gear selection positions of other gears are not clearly distinguished, and the driver needs to determine the gear selection position of the current gearbox in the reverse gear according to the driving experience or the position of the gear handle, so that great inconvenience is brought to the driving process.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

In view of this, a first aspect of the present invention proposes a gearbox.

A second aspect of the invention proposes a vehicle.

A first aspect of the invention provides a gearbox comprising: a housing; the driving shaft is arranged on the shell; the gear selecting and shifting block is arranged to be sleeved on the driving shaft to be fixedly connected with the driving shaft, and a limiting part is formed on the periphery of the gear selecting and shifting block; the reverse gear positioning pin assembly is arranged on the shell, the gear selecting and shifting head can move relative to the reverse gear positioning pin, and after the gear selecting and shifting head moves to a preset gear selecting position, the limiting part can abut against the reverse gear positioning pin assembly.

The present invention provides a transmission comprising: the gear selecting and shifting device comprises a shell, a driving shaft, a gear selecting and shifting block and a reverse gear positioning pin component, wherein the gear selecting and shifting block is sleeved on the driving shaft and is fixedly connected with the driving shaft, so that the gear selecting and shifting block and the driving shaft are axially and circumferentially fixed, the driving shaft can be ensured to stably drive the gear selecting and shifting block to move and rotate, a limiting part is formed at the periphery of the gear selecting and shifting block and protrudes out of a shaft body of the driving shaft, when gear shifting is needed, the driving shaft moves along the axial direction, the driving shaft drives the gear selecting and shifting block to move relative to the reverse gear positioning pin component, after the gear selecting and shifting block moves to a preset gear selecting position, the limiting part can abut against a gear shifting positioning pin, the preset gear selecting position can be understood as a gear position to be selected, for example, the driving shaft moves and drives the gear selecting and shifting block to move to a gear to be selected between a first gear and a second gear, when the driver moves to a gear to be selected of a first gear and a second gear, the limiting part is abutted against the reverse gear positioning pin assembly, the reverse gear positioning pin provides a blocking force for the limiting part at the moment, the blocking force can be fed back to a gear handle of a cab, namely, the driver can feel resistance in the gear shifting process, the resistance indicates that the current gear selecting and shifting dial is the gear to be selected of the first gear and the second gear, the driver can continuously move the driving shaft to switch to the reverse gear, namely, the driver can select to switch to the first gear, the second gear or the reverse gear at the moment, the gear selecting and shifting dial is abutted against the reverse gear positioning pin, so that the gear selecting positions of the first gear, the second gear and the reverse gear are clearly distinguished from the gear selecting positions of other gears, and the driver can feel whether the gear selecting and shifting dial moves to the gear selecting positions of the first gear, the second gear and the reverse gear through the gears in the gear shifting process, effectively improve the driving experience and the driving safety.

In addition, according to the transmission in the above technical solution provided by the present invention, the following additional technical features may also be provided:

in one possible design, the reverse gear detent pin assembly includes: the reverse gear positioning pin is arranged on the shell, a first accommodating cavity is formed in the shell, and at least part of the reverse gear positioning pin is exposed out of the first accommodating cavity so that the reverse gear positioning pin can abut against the limiting part; the first elastic piece is arranged in the first accommodating cavity and is configured to push the reverse gear positioning pin.

In this design, the reverse gear locating pin assembly includes: the reverse gear positioning pin and the first elastic piece are arranged, one part of the reverse gear positioning pin is accommodated in the first accommodating cavity, the other part of the reverse gear positioning pin is exposed out of the first accommodating cavity, the first elastic piece is arranged in the first accommodating cavity, the first elastic piece can push the reverse gear positioning pin, the end part of the reverse gear positioning pin can be abutted to the gear shifting head, the first elastic piece can stably abut against the gear shifting head for selecting the gear shifting head for pushing the reverse gear positioning pin, the limiting part can be abutted to the reverse gear positioning pin for ensuring the limiting part to be abutted to the reverse gear positioning pin, in addition, the reverse gear positioning pin can slide relative to the shell, the limiting part can push the reverse gear positioning pin, the reverse gear positioning pin moves towards the first accommodating cavity, further, the reverse gear can be switched, and the occurrence of the dead blocking condition of the driving shaft is avoided.

Specifically, first elastic component can be compression spring, and the compression spring of compressed can promote the locating pin that reverses gear.

In one possible design, the limiting portion includes: the direction sloping platform, direction sloping platform can promote to reverse gear the locating pin and move towards first holding the intracavity.

In this design, when the drive shaft along axial displacement, the direction sloping platform can with reverse gear locating pin relative movement and promote reverse gear locating pin for reverse gear locating pin moves towards the first intracavity that holds and will compress compression spring, sets up the direction sloping platform and can steadily promote reverse gear locating pin, and the driver can smoothly realize the process of shifting at the in-process of shifting, avoids appearing the condition emergence of shifting and pause in the file.

In addition, the spacing portion still includes: the supporting table, the supporting table is connected with one side of the shaft body of drive shaft is kept away from to the direction sloping platform, the supporting table extends along the axial of drive shaft, the relative reverse gear locating pin of direction sloping platform removes and makes the tip of reverse gear locating pin keep away from the shaft body of drive shaft gradually, after the direction sloping platform, the supporting table offsets with the reverse gear locating pin, the supporting table extends along the axial of drive shaft, make the supporting table can not provide the axial force to the reverse gear locating pin again, thereby make the difficult relative reverse gear locating pin of supporting table slide.

In one possible design, the gearbox further comprises: and a reverse gear switch disposed in the housing, the reverse gear positioning pin being configured to push the reverse gear switch to turn on the reverse gear switch.

In this design, the direction sloping platform promotes the locating pin of reversing gear and makes the locating pin of reversing gear remove towards the first intracavity that holds, the locating pin of reversing gear promotes the switch of reversing gear and makes the switch of reversing gear switch on, the switch on signal can be exported after the switch on of reversing gear, thereby make the vehicle can carry out the warning function of reversing gear, for example, the reverse gear lamp at vehicle rear portion lights, the warning lamp of reversing gear lights and sends the sound warning that the reverse gear was noticed in the vehicle, thereby remind driver and passerby current vehicle to be backing a car, improve the security of vehicle driving process.

In one possible design, the gearbox further comprises: the first fixing block and the second fixing block are arranged on the driving shaft; the first positioning pin assembly and the second positioning pin assembly are arranged on the shell, the first end of the first positioning pin assembly abuts against the periphery of the first fixing block, and the periphery of the second positioning pin abuts against the periphery of the second fixing block; and the neutral switch is arranged on the shell, the position where the first positioning pin component is abutted to the first fixing block is switched to a second position from the first position, and the second fixing block pushes the second end of the second positioning pin component to be abutted to the neutral switch so as to enable the neutral switch to be conducted.

In this design, in the gear selection process, need control the drive shaft and rotate, the drive shaft rotates and can drive first fixed block and second fixed block and rotate, first fixed block rotates first locating pin subassembly relatively, the second fixed block rotates second locating pin subassembly relatively, first fixed block rotates and makes the position that first locating pin subassembly and first fixed block offset change, switch over the in-process to the second position by first position in the position that first locating pin subassembly and first fixed block offset, the second fixed block promotes second locating pin subassembly, make the second locating pin subassembly that is promoted can offset with neutral gear switch, second locating pin subassembly makes neutral gear switch on to the impetus of neutral gear switch.

Specifically, the first position can be set as the position that waits to be shifted for first fixed block, the second position is the position after the first fixed block is in the selection, when not selecting the fender, neutral switch does not switch on, after the selection, neutral switch switches on, through controlling switching on or closing of neutral switch can remind the user that current gearbox is the state of putting into gear or neutral state, be favorable to the driver to judge whether the fender position state of current gearbox is correct, and then be convenient for the driver to carry out further operation, effectively improve the security of driving process.

In one possible design, positioning grooves are respectively formed in one sides, far away from the driving shaft, of the first fixing block and one side, far away from the driving shaft, of the second fixing block, the cross sections of the positioning grooves in the axial direction of the driving shaft are arc-shaped, and at least three positioning grooves are formed in the first fixing block; the first and second dowel assemblies each include: the positioning pin is arranged on the shell, a second accommodating cavity is formed in the shell, at least part of the positioning pin is exposed out of the second accommodating cavity, and the positioning pin is constructed to push the neutral switch so as to enable the neutral switch to be conducted; and the second elastic piece is positioned in the second accommodating cavity and is configured to push the positioning pin so that the positioning pin can abut against the positioning groove.

In this design, partly holding in the second of locating pin holds the intracavity, another part exposes and holds the intracavity outward in the second, the second elastic component makes the second elastic component can offset with the periphery of first fixed block or second fixed block to the thrust of locating pin, the locating pin can the butt in the constant head tank or not set up the position of constant head tank, because the cross-section of constant head tank is the circular arc, make first fixed block and the relative locating pin of second fixed block slide steadily, avoid the rotation process of drive shaft the card to appear and pause, wherein, the second elastic component is compression spring.

Specifically, three positioning pins on the first fixing block may be provided, the three positioning pins are arranged at intervals along the circumferential direction of the first fixing block, wherein when the positioning pins abut against the positioning grooves at the middle positions of the three positioning pins, it is described that the current transmission case is in a neutral state or a gear-selecting state, and when the positioning pins abut against the two positioning grooves at the two sides of the three positioning grooves, gear selection has been completed, i.e. the transmission case has been switched to a predetermined gear, it can be understood that when the positioning grooves at the middle positions are gradually separated from the positioning pins due to rotation of the first fixing block, the inner walls of the positioning grooves push the positioning pins, the positioning pins compress the compression springs, at this time, the elastic force of the compression springs needs to be overcome when the driving shaft is rotated, and when the positioning pins are accommodated in the positioning grooves at the side, the compression springs push the positioning pins, need not overcome compression spring's elasticity this moment, and can rotate the drive shaft lightly fast, and compression spring is when the promotion of locating pin, the locating pin can promote first fixed block, make first fixed block and drive shaft can be promoted and rotate, and then can accomplish the selection fender process lightly, or say, select the fender in-process, driver's drive keeps off behind one end distance, keep off can accelerate suddenly and accomplish the selection fender, the process of shifting is more laborsaving, and the locating pin makes the difficult circumferential direction that appears of drive shaft to the limiting displacement of constant head tank, and then avoids the appearance of empty formation.

When the positioning groove rotates relative to the positioning pin, the positioning pin is pushed, and the positioning pin pushes the neutral switch to enable the neutral switch to be conducted.

When the locating pin holding of first locating pin subassembly was in the constant head tank of first fixed block intermediate position, the locating pin holding of second locating pin subassembly was in the constant head tank of second fixed block, and when the constant head tank of first fixed block intermediate position and the locating pin separation of first locating pin subassembly, the constant head tank of second fixed block separated with the locating pin of second locating pin subassembly.

In one possible design, the gearbox further comprises: and a third accommodating cavity for accommodating the third elastic part is arranged in the shell, and two ends of the third elastic part are fixed on the driving shaft.

In this design, the both ends of third elastic component are fixed in the drive shaft, and the third elastic component can be compression spring, and the drive shaft is located to compression spring cover, and compression spring's both ends and the relative lateral wall in third holding chamber offset moreover, and when drive shaft along axial displacement, the drive shaft can compress compression spring.

Specifically, at compression spring's position that does not take place elastic deformation, explain that current gearbox is in the neutral gear state, when needing to select the fender, the drive shaft is along axial displacement and with compression spring compression, if need switch over to the neutral gear or stop selecting the fender, the compression spring that takes place elastic deformation produces the motive force to meeting the drive shaft, is favorable to the drive shaft to remove to the neutral gear position, fixes a position the drive shaft through the third elastic component, effectively eliminates the idle stroke of shifting.

In one possible design, the gearbox further comprises: a vent plug disposed on the housing, the vent plug configured to vent gas within the housing.

In this design, in the gearbox working process, the internal part of gearbox can produce the heat, and the inside steam of gearbox can be discharged to the breather plug to avoid the unable effluvium of heat and influence the normal use of gearbox, effectively avoid appearing phenomenons such as flatulence swell in the gearbox to take place.

With the breather plug setting in this application on the first casing that holds chamber department, the breather plug setting is here and avoid producing the interference to the normal work of other parts, improves the stability of gearbox working process.

In one possible design, the gearbox further comprises: the gear selecting driving piece is rotatably connected to the shell; the connecting arm is arranged on the periphery of the gear selecting driving piece, the driving shaft and the gear selecting and shifting head are provided with gear selecting grooves for containing the connecting arm, and the connecting arm is configured to be suitable for pushing the driving shaft to move along the axis direction.

In this design, the selection keeps off the driving piece and can rotate and drive the linking arm rotation relatively the casing, and the drive shaft is equipped with the selection shifting block and keeps off the groove, and connecting portion can insert the selection and keep off the inslot, and the linking arm offsets with the inner wall that selects to keep off the groove, and the linking arm rotates and promotes drive shaft and selection shifting block for the axial is followed to the drive shaft, and then drives the selection shifting block and remove to the selection position of difference.

Specifically, the end part, far away from the gear selecting driving piece, of the connecting arm is constructed into a sphere or an ellipsoid, so that the surface of the connecting arm is smooth, the connecting arm can be in smooth contact with the inner wall of the gear selecting groove, and the situation that the gear is blocked in the gear shifting process is avoided.

A second aspect of the invention proposes a vehicle comprising: a gearbox according to any one of the preceding claims and hence the invention provides a vehicle having all the benefits of a gearbox according to any one of the preceding claims.

The vehicle further comprises a vehicle body and an assembling portion, the assembling portion is arranged on the vehicle body and can be assembled with the gearbox, and the assembling portion fixes the gearbox, so that the gearbox is not prone to shaking relative to the vehicle body, and the use stability of the gearbox is improved.

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 diagram of a transmission of one embodiment of the present invention;

FIG. 2 shows a schematic structural diagram of a transmission case of another embodiment of the present invention;

FIG. 3 shows a schematic structural diagram of a transmission case of yet another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a transmission case according to another embodiment of the present invention;

wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

the casing, 2 drive shafts, 3 select the shifting block of shifting, 31 spacing portion, 4 locating pin subassembly that reverses gear, 41 locating pin that reverses gear, 42 first elastic component, 43 first hold the chamber, 5 switch that reverses gear, 6 first fixed block, 7 second fixed blocks, 8 first locating pin subassembly, 9 second locating pin subassembly, 10 neutral gear switch, 11 locating grooves, 12 locating pins, 13 second elastic component, 14 second hold the chamber, 15 third elastic component, 16 third hold the chamber, 17 breather plugs, 18 select to keep off the driving piece, 19 linking arm.

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.

A gearbox provided according to some embodiments of the present invention is described below with reference to fig. 1 to 4.

As shown in fig. 1, a first aspect of the present invention provides a transmission including: a housing 1; the driving shaft 2 is arranged on the shell; the gear selecting and shifting block 3 is configured to be sleeved on the driving shaft 2 to be fixedly connected with the driving shaft 2, and a limiting part 31 is formed on the periphery of the gear selecting and shifting block 3; the reverse gear positioning pin assembly 4 is arranged on the shell 1, the gear selecting and shifting head 3 can move relative to the reverse gear positioning pin 41, and after the gear selecting and shifting head 3 moves to a preset gear selecting position, the limiting portion 31 can abut against the reverse gear positioning pin assembly 4.

The present invention provides a transmission comprising: the gear selecting and shifting device comprises a shell 1, a driving shaft 2, a gear selecting and shifting dial 3 and a reverse gear positioning pin assembly 4, wherein the gear selecting and shifting dial 3 is sleeved on the driving shaft 2, the gear selecting and shifting dial 3 is fixedly connected with the driving shaft 2, the gear selecting and shifting dial 3 and the driving shaft 2 are axially and circumferentially fixed, the driving shaft 2 can stably drive the gear selecting and shifting dial 3 to move and rotate, a limiting part 31 is formed at the periphery of the gear selecting and shifting dial 3, the limiting part 31 protrudes out of the shaft body of the driving shaft 2, when gear shifting is needed, the driving shaft 2 moves along the axial direction, the driving shaft 2 drives the gear selecting and shifting dial 3 to move relative to the reverse gear positioning pin assembly 4, after the gear selecting and shifting dial 3 moves to a preset gear selecting position, the limiting part 31 can abut against a gear shifting positioning pin, it can be understood that the preset gear selecting position is a gear position to be shifted, for example, the driving shaft 2 moves and drives the gear selecting and shifting dial 3 to move to a gear to be selected between a first gear and a second gear, then, the first gear or the second gear can be selected by rotating the driving shaft 2, when the first gear or the second gear to be selected is moved, the limiting part 31 abuts against the reverse gear positioning pin assembly 4, the reverse gear positioning pin 41 provides a blocking force for the limiting part 31 at the moment, the blocking force can be fed back to a gear handle of a cab, namely, a driver can feel resistance in the gear shifting process, the resistance indicates that the current gear selecting and shifting dial 3 is the first gear or the second gear to be selected, the driving shaft 2 is continuously moved to the reverse gear position, namely, the first gear, the second gear or the reverse gear can be selected to be switched, the gear selecting and shifting dial 3 abuts against the reverse gear positioning pin 41, so that the gear selecting positions of the first gear, the second gear and the reverse gear are clearly distinguished from the gear selecting positions of other gears, and the driver can feel whether the gear selecting and shifting dial 3 is moved to the first gear, the second gear or the reverse gear in the gear shifting process, Two keep off the selection that keeps off the position and keep off the position with reversing gear, effectively improve and drive experience and driving safety nature.

In the above embodiment, as shown in fig. 1 and 2, the reverse gear positioning pin assembly 4 includes: the reverse gear positioning pin 41 is arranged on the shell 1, a first accommodating cavity 43 is formed in the shell 1, and at least part of the reverse gear positioning pin 41 is exposed out of the first accommodating cavity 43 so that the reverse gear positioning pin 41 can be abutted against the limiting part 31; and a first elastic member 42 disposed in the first receiving cavity 43, the first elastic member 42 being configured to push the reverse positioning pin 41.

In this embodiment, the reverse gear positioning pin assembly 4 includes: a reverse gear positioning pin 41 and a first elastic member 42, wherein a part of the reverse gear positioning pin 41 is accommodated in the first accommodating cavity 43, the other part is exposed out of the first accommodating cavity 43, the first elastic member 42 is arranged in the first accommodating cavity 43, the first elastic member 42 can push the reverse gear positioning pin 41, the end of the reverse gear positioning pin 41 can abut against the gear selecting and shifting block 3, the pushing action of the first elastic piece 42 on the reverse gear positioning pin 41 can cause the reverse gear positioning pin 41 to stably abut against the gear selecting and shifting block 3, thereby ensuring that the limiting part 31 can abut against the reverse gear positioning pin 41 and, because the reverse gear positioning pin 41 can slide relative to the housing 1, the limiting portion 31 can push the reverse gear positioning pin 41, make reverse gear locating pin 41 remove towards first holding chamber 43, and then can switch over to reverse gear and keep off the position, avoid appearing taking place the dead condition of card of drive shaft 2.

Specifically, the first elastic member 42 may be a compression spring, and the compressed compression spring can push the reverse position fixing pin 41.

In the above embodiment, as shown in fig. 1 and 2, the stopper portion 31 includes: and the guide slope can push the reverse gear positioning pin 41 to move towards the inside of the first accommodating cavity 43.

In this embodiment, when drive shaft 2 along axial displacement, the direction sloping platform can with reverse gear locating pin 41 relative movement and promote reverse gear locating pin 41 for reverse gear locating pin 41 removes and compresses compression spring towards first holding the intracavity 43, sets up the direction sloping platform and can steadily promote reverse gear locating pin 41, and the driver can smoothly realize the process of shifting at the in-process of shifting, avoids appearing the condition emergence of shifting and pause and contuse.

In addition, the stopper portion 31 further includes: a supporting bench, the one side that the axis body of drive shaft 2 was kept away from to the brace table and direction sloping platform is connected, the axial extension of drive shaft 2 is followed to the brace table, the relative axis body that keeps away from drive shaft 2 of direction sloping platform reverse gear locating pin 41 removal and make the tip of reverse gear locating pin 41 gradually, after the direction sloping platform, the brace table offsets with reverse gear locating pin 41, the axial extension of drive shaft 2 is followed to the brace table, make the brace table can not provide the axial force to reverse gear locating pin 41 again, thereby make the difficult relative reverse gear locating pin 41 of brace table slide.

In the above embodiment, as shown in fig. 1 and 2, the transmission further includes: and a reverse switch 5 provided in the housing 1, the reverse positioning pin 41 being configured to push the reverse switch 5 to turn on the reverse switch 5.

In this embodiment, the direction sloping platform promotes reverse gear locating pin 41 and makes reverse gear locating pin 41 move towards first holding chamber 43, reverse gear locating pin 41 promotes reverse gear switch 5 and makes reverse gear switch 5 switch on, reverse gear switch 5 can output the turn-on signal after switching on, thereby make the vehicle can carry out reverse gear warning function, for example, the reverse gear lamp at vehicle rear portion lights, the sound warning that the interior reverse gear warning lamp of vehicle lights and send reverse gear to notice, thereby remind driver and passerby that the vehicle is backing a car at present, improve the security of vehicle driving process.

In the above embodiment, as shown in fig. 1 and 3, the transmission further includes: a first fixing block 6 and a second fixing block 7 which are provided on the driving shaft 2; the first positioning pin assembly 8 and the second positioning pin assembly 9 are arranged on the shell 1, the first end of the first positioning pin assembly 8 abuts against the periphery of the first fixing block 6, and the periphery of the second positioning pin abuts against the periphery of the second fixing block 7; and the neutral switch 10 is arranged on the shell 1, the position where the first positioning pin component 8 abuts against the first fixing block 6 is switched to a second position from the first position, and the second fixing block 7 pushes the second end of the second positioning pin component 9 to abut against the neutral switch 10, so that the neutral switch 10 is switched on.

In this embodiment, in the gear selecting process, the driving shaft 2 needs to be controlled to rotate, the driving shaft 2 rotates to drive the first fixing block 6 and the second fixing block 7 to rotate, the first fixing block 6 rotates relative to the first positioning pin assembly 8, the second fixing block 7 rotates relative to the second positioning pin assembly 9, the first fixing block 6 rotates to enable the position where the first positioning pin assembly 8 abuts against the first fixing block 6 to change, in the process that the position where the first positioning pin assembly 8 abuts against the first fixing block 6 is switched from the first position to the second position, the second fixing block 7 pushes the second positioning pin assembly 9, the pushed second positioning pin assembly 9 can abut against the neutral gear switch 10, and the neutral gear switch 10 is switched on by the second positioning pin assembly 9 under the pushing action of the neutral gear switch 10.

Specifically, the first position can be set as the position that first fixed block 6 is in waiting to select to keep off, the second position is the position after first fixed block 6 is in selecting to keep off, when not selecting to keep off, neutral switch 10 does not switch on, after selecting to keep off, neutral switch 10 switches on, switch on or close through control neutral switch 10 can remind the user that the current gearbox is the state of putting into gear or neutral state, be favorable to the driver to judge whether the gear state of current gearbox is correct, and then be convenient for the driver to carry out further operation, effectively improve the security of driving process.

In the above embodiment, as shown in fig. 1 and 3, the first fixing block 6 and the second fixing block 7 are respectively provided with positioning grooves 11 on sides thereof away from the driving shaft 2, the cross section of each positioning groove 11 along the axial direction of the driving shaft 2 is arc-shaped, wherein there are at least three positioning grooves 11 on the first fixing block 6; the first and second dowel assemblies 8 and 9 each include: the positioning pin 12 is arranged on the shell 1, a second accommodating cavity 14 is formed in the shell 1, the positioning pin 12 is at least partially exposed out of the second accommodating cavity 14, and the positioning pin 12 is configured to push the neutral switch 10 so as to enable the neutral switch 10 to be conducted; and a second elastic member 13 located in the second accommodating cavity 14, wherein the second elastic member 13 is configured to push the positioning pin 12 so that the positioning pin 12 can abut against the positioning slot 11.

In this embodiment, a part of the positioning pin 12 is accommodated in the second accommodating cavity 14, and another part of the positioning pin 12 is exposed outside the second accommodating cavity 14, the second elastic member 13 can abut against the outer periphery of the first fixing block 6 or the second fixing block 7 due to the urging force of the second elastic member 13 against the positioning pin 12, the positioning pin 12 can abut against the inside of the positioning slot 11 or the position where the positioning slot 11 is not disposed, because the cross section of the positioning slot 11 is a circular arc, the first fixing block 6 and the second fixing block 7 stably slide relative to the positioning pin 12, and the rotation process of the driving shaft 2 is prevented from being jammed, wherein the second elastic member 13 is a compression spring.

Specifically, three positioning pins 12 may be disposed on the first fixing block 6, the three positioning pins 12 are disposed at intervals along the circumferential direction of the first fixing block 6, wherein when the positioning pins 12 abut against the positioning grooves 11 at the middle position of the three positioning grooves 11, it is described that the current transmission case is in a neutral state or a gear-to-be-selected state, when the positioning pins 12 abut against the two positioning grooves 11 at the two sides of the three positioning grooves 11, the gear selection is completed, that is, the transmission case is switched to a predetermined gear, it can be understood that when the first fixing block 6 rotates to gradually separate the positioning grooves 11 at the middle position from the positioning pins 12, the inner walls of the positioning grooves 11 push the positioning pins 12, the positioning pins 12 compress the compression spring, at this time, the elastic force of the compression spring needs to be overcome when the driving shaft 2 rotates, and when the positioning pins 12 are disposed in the positioning grooves 11 at the sides by the first fixing block 6 continuing to rotate, compression spring can promote locating pin 12, need not overcome compression spring's elasticity this moment, and can rotate drive shaft 2 light and fast, and compression spring is when promoting locating pin 12, locating pin 12 can promote first fixed block 6, make first fixed block 6 and drive shaft 2 can be promoted and rotate, and then can accomplish the selection process lightly, or, at the selection in-process, the driver drives to keep off one end distance back, keep off can accelerate suddenly and accomplish the selection and keep off, the process of shifting is more laborsaving, and locating pin 12 makes drive shaft 2 be difficult for appearing circumferential direction to the limiting displacement of constant head tank 11, and then avoid empty appearance that forms.

Three constant head tank 11 on the first fixed block 6 is "M type" along the ascending cross-section of drive shaft 2 axial, and the ascending cross-section of drive shaft 2 of a constant head tank 11 on the second fixed block 7 is circular arc type or V type, and first fixed block 6 and second fixed block 7 are equipped with "M type groove" and "V type groove" respectively, and both sides are equipped with locating pin 12 respectively, and the dabber of the locating pin 12 of "V type groove" one side is connected with neutral position switch 10.

When the positioning slot 11 rotates relative to the positioning pin 12, the positioning pin 12 is pushed, and the positioning pin 12 pushes the neutral switch 10 to turn on the neutral switch 10.

When the positioning pin 12 of the first positioning pin assembly 8 is accommodated in the positioning groove 11 at the middle position of the first fixing block 6, the positioning pin 12 of the second positioning pin assembly 9 is accommodated in the positioning groove 11 of the second fixing block 7, and when the positioning groove 11 at the middle position of the first fixing block 6 is separated from the positioning pin 12 of the first positioning pin assembly 8, the positioning groove 11 of the second fixing block 7 is separated from the positioning pin 12 of the second positioning pin assembly 9.

In the above embodiment, as shown in fig. 1 and 4, the transmission further includes: and a third elastic part 15, wherein a third accommodating cavity 16 for accommodating the third elastic part 15 is arranged in the shell 1, and two ends of the third elastic part 15 are fixed on the driving shaft 2.

In this embodiment, the two ends of the third elastic member 15 are fixed to the driving shaft 2, the third elastic member 15 may be a compression spring, the compression spring is sleeved on the driving shaft 2, and the two ends of the compression spring are abutted against the opposite side walls of the third accommodating chamber 16, and when the driving shaft 2 moves in the axial direction, the driving shaft 2 compresses the compression spring.

Specifically, at compression spring not take place elastic deformation's position, explain that current gearbox is in the neutral gear state, when needing to select the fender, drive shaft 2 is along axial displacement and with the compression spring compression, if need switch over to the neutral gear or stop selecting the fender, the compression spring that takes place elastic deformation produces the motive force to meeting drive shaft 2, is favorable to drive shaft 2 to remove to the neutral gear position, fixes a position drive shaft 2 through third elastic component 15, effectively eliminates the idle stroke of shifting.

In the above embodiment, as shown in fig. 1 and 2, the transmission further includes: and a vent plug 17 provided on the housing 1, the vent plug 17 being configured to be adapted to discharge gas inside the housing 1.

In this embodiment, in the gearbox course of operation, the internal part of gearbox can produce the heat, and the inside steam of gearbox can be discharged to breather plug 17 to avoid the unable effluvium of heat and influence the normal use of gearbox, effectively avoid appearing phenomenons such as flatulence swell in the gearbox to take place.

In the application, the vent plug 17 is arranged on the shell 1 at the first accommodating cavity 43, and the vent plug 17 is arranged at the position to avoid interference on normal operation of other components, so that the stability of the operation process of the gearbox is improved.

In the above embodiment, as shown in fig. 1, the transmission case further includes: a gear selecting driving member 18 rotatably connected to the housing 1; and the connecting arm 19 is arranged on the periphery of the gear selecting driving piece 18, the driving shaft 2 and the gear selecting shifting block 3 are provided with gear selecting grooves for containing the connecting arm 19, and the connecting arm 19 is configured to push the driving shaft 2 to move along the axial direction.

In this embodiment, select to keep off driving piece 18 and can rotate and drive linking arm 19 relative to casing 1 and rotate, drive shaft 2 and select the shifting block 3 to be equipped with and select to keep off the groove, and connecting portion can insert and select to keep off the inslot, and linking arm 19 offsets with selecting the inner wall that keeps off the groove, and linking arm 19 rotates and promotes drive shaft 2 and the shifting block of selecting to keep off for axial can be followed to drive shaft 2, and then drives and select shifting block 3 to remove to the different selection position of keeping off.

In particular, the end of the connecting arm 19 remote from the gear selection drive 18 is configured as a sphere or an ellipsoid, so that the surface of the connecting arm 19 is smooth, and the connecting arm 19 can smoothly contact with the inner wall of the gear selection groove, thereby avoiding the occurrence of a stuck condition during the gear shifting process.

The working principle is as follows:

with reference to fig. 1 to 4, in the gear selecting process when the dual flexible shafts are operated, when the three-fourth gear position is initiated, the third elastic member 15 positions the driving shaft 2 together with the gear selecting and shifting head 3 and the gear selecting driving member 18, so as to eliminate the gear selecting neutral stroke; the positioning pin 12 is abutted against the first fixing block 6 and the second fixing block 7, and the gear shifting idle stroke is eliminated.

When the fifth gear and the sixth gear are selected, the gear selecting and shifting head 3, the driving shaft 2, the first fixing block 6 and the second fixing block 7 are driven to axially move by the swinging of the gear selecting driving piece 18, and the third elastic piece 15 is compressed.

When selecting two gears, the swing of the gear selecting driving piece 18 drives the gear shifting block, the driving shaft 2, the first fixing block 6 and the second fixing block 7 to axially move, the third elastic piece 15 is compressed, meanwhile, the reverse gear positioning pin 41 leans against the limiting part 31 on the gear selecting and shifting block 3, and due to the fact that the first elastic piece 42 is arranged on the reverse gear positioning pin 41, an obvious 'wall leaning force' is generated, and the force distinguishes the positions of the two gears and the reverse gear.

When selecting reverse gear, the swing of selecting to keep off driving piece 18 drives shifting block, drive shaft 2, first fixed block 6 and second fixed block 7 axial displacement, and third elastic component 15 receives the compression, and reverse gear locating pin 41 climbs the spacing portion 31 on selecting the shifting block 3 simultaneously, and reverse gear locating pin 41 compresses first elastic component 42.

The process of shifting when two flexible axle are controlled, when shifting and be in neutral gear state, the locating pin 12 in first locating pin subassembly 8 withstands first fixed block 6, and the locating pin 12 in second locating pin subassembly 9 withstands second fixed block 7, fixes a position drive shaft 2 and selects the shifting block 3 of shifting, eliminates the idle stroke of shifting.

When shifting gears, the positioning pin 12 in the first positioning pin assembly 8 climbs over the 'M-shaped groove' of the first fixing block 6 and the positioning pin 12 in the second positioning pin assembly 9 climbs over the 'V-shaped groove' of the second fixing block 7 "

The positioning pin 12 on the "M-groove" side compresses the second elastic element 13, generating a shifting suction force while ensuring self-locking of the shift.

The mandrel of the positioning pin 12 on the V-shaped groove side pushes the mandrel of the neutral switch 10, and the neutral switch 10 works.

The gear selecting process during single-rod operation can be realized by directly driving the driving shaft 2, the gear selecting and shifting head 3, the first fixing block 6 and the second fixing block 7 to axially move and rotate by the operating rod without installing the gear selecting driving piece 18, so that gear selecting and shifting are realized

The present embodiment provides a transmission, comprising: the gear selecting and shifting device comprises a shell 1, a driving shaft 2, a gear selecting and shifting dial 3, a third elastic element 15, a first fixed block 6, a second fixed block 7, a positioning pin 12, a neutral gear switch 10, a vent plug 17, a gear selecting driving element 18, a reverse gear positioning pin 41, a first elastic element 42, a reverse gear switch 5 and the like, wherein the driving shaft 2 is fixedly connected with the first fixed block 6, the second fixed block 7 and the gear selecting and shifting dial 3, the third elastic element 15 is arranged at the tail part of the driving shaft 2, an M-shaped groove is arranged at one side of the first fixed block 6, a V-shaped groove is arranged at one side of the second fixed block 7, positioning pins 12 are respectively arranged at two sides, a core shaft of the positioning pin 12 at one side of the V-shaped groove is connected with the neutral gear switch 10, a gear selecting groove is arranged on the gear selecting and shifting dial 3, a connecting arm 19 of the gear selecting driving element 18 is clamped in the groove, a limiting part 31 is simultaneously arranged on the gear selecting and the gear shifting dial 3, the reverse gear positioning pin 41 is arranged beside the gear, the reverse gear positioning pin 41 is provided with the first elastic element 42, the rear end of the reverse gear positioning pin 41 is connected with the reverse gear switch 5, and a vent plug 17 is arranged on the shell 1 at the second elastic piece 13.

A second aspect of the present embodiment proposes a vehicle including: a gearbox according to any one of the embodiments described above, and therefore the present embodiment provides a vehicle having all the benefits of a gearbox as provided in any one of the embodiments described above.

The vehicle further comprises a vehicle body and an assembling portion, the assembling portion is arranged on the vehicle body and can be assembled with the gearbox, and the assembling portion fixes the gearbox, so that the gearbox is not prone to shaking relative to the vehicle body, and the use stability of the gearbox is improved.

In the present invention, the term "plurality" means two or more unless explicitly defined 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 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 description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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.