阅读说明：本技术 新型换挡变速执行装置及车用变速箱 (Novel gear shifting and speed changing execution device and vehicle gearbox ) 是由 田立树 赵敦洲 于 2019-11-05 设计创作，主要内容包括：本发明提供了一种新型换挡变速执行装置及车用变速箱,属于汽车生产技术领域,包括端盖、多个换挡气缸和多个拨叉；多个拨叉滑动设于端盖的下方；多个换挡气缸固设于端盖的下端面,且轴向平行,与多个拨叉一一对应连接,换挡气缸用于驱动拨叉带动变速轮滑动换挡。车用变速箱采用了该新型换挡变速执行装置。本发明提供的新型换挡变速执行装置通过将换挡气缸的行程的始点位置和终点位置作为档位的切换点,保证了换挡动作执行的准确性；将多个换挡气缸设置在同一个端盖上,形成了整体结构的换挡执行机构,便于该换挡执行机构的安装,相较于传统的换挡变速执行机构技术更先进。本申请提供的车用变速箱结构更为紧凑,安装方便,而且档位切换准确无误。(The invention provides a novel gear shifting and speed changing execution device and a vehicle gearbox, belonging to the technical field of automobile production and comprising an end cover, a plurality of gear shifting cylinders and a plurality of shifting forks; the plurality of shifting forks are arranged below the end covers in a sliding manner; the plurality of gear shifting cylinders are fixedly arranged on the lower end face of the end cover, are axially parallel and are connected with the plurality of shifting forks in a one-to-one correspondence mode, and the gear shifting cylinders are used for driving the shifting forks to drive the speed changing wheels to slide and shift gears. The vehicle gearbox adopts the novel gear shifting and speed changing execution device. The novel gear shifting variable speed execution device provided by the invention ensures the accuracy of gear shifting action execution by taking the starting point position and the end point position of the stroke of the gear shifting cylinder as the switching points of gears; the gear shifting actuating mechanism is convenient to install and is more advanced compared with the traditional gear shifting variable speed actuating mechanism. The application provides a vehicle gearbox structure is more compact, simple to operate, and the gear switches moreover accurately.)

1. Novel shift variable speed execution device, its characterized in that includes:

an end cap;

the plurality of shifting forks are arranged below the end covers in a sliding manner;

the gear shifting cylinders are fixedly arranged on the lower end face of the end cover, are axially parallel and are connected with the plurality of shifting forks in a one-to-one correspondence mode, and the gear shifting cylinders are used for driving the shifting forks to drive the variable speed wheels to shift gears in a sliding mode.

2. The new shift variable speed actuator as set forth in claim 1, wherein: and the fixed cylinder sleeves of the gear shifting cylinders and the end covers are integrally formed.

3. The new gear shift variable speed actuator as set forth in claim 2, wherein: the end part of the gear shifting cylinder is provided with a reinforcing sleeve, and the reinforcing sleeve and the end cover are integrally formed.

4. The novel gear shift variable speed actuator as set forth in claim 1, further comprising:

the supporting seats are fixedly arranged on the lower end face of the end cover;

the plurality of sliding rods are arranged on the supporting seat in an axial sliding mode along the gear shifting cylinder, and the shifting fork is fixedly arranged on the sliding rods;

the connecting pieces are respectively and fixedly connected with the sliding rod and the piston rod of the gear shifting cylinder;

the gear shifting cylinder drives the sliding rod to move by means of the connecting piece so as to drive the shifting fork to slide.

5. The new shift variable speed actuator as set forth in claim 4, wherein said connecting member includes:

a first connecting part connected to an end of the piston rod;

and the second connecting part is arranged on one side of the first connecting part and is connected with the sliding rod.

6. The new shift variable speed actuator as set forth in claim 5, wherein: the supporting seat is provided with a plurality of mounting holes for mounting position sensors, and the position sensors are used for detecting gears.

7. The new shift variable speed actuator as set forth in claim 1, wherein: the circumference of end cover is provided with a plurality of connecting holes.

8. The new shift variable speed actuator as set forth in claim 1, wherein: the end cover is provided with a plurality of air holes used for communicating the gear shifting cylinder.

9. The new shift variable speed actuator as set forth in claim 1, wherein: a plurality of mounting grooves are formed in the lower end face of the end cover, and the gear shifting cylinder is mounted in the mounting grooves.

10. The vehicle gearbox is characterized in that: comprising a new gear change transmission actuator according to any of the preceding claims 1-9.

Technical Field

The invention belongs to the technical field of automobile manufacturing, and particularly relates to a novel gear shifting and speed changing execution device and a vehicle gearbox provided with the novel gear shifting and speed changing execution device.

Background

The automobile is widely applied in modern people production and life, the gear shifting executing mechanism is an executing mechanism for realizing automobile speed change, particularly has the characteristics of high load and high speed of a truck, and has huge momentum in the high-speed driving process, so that higher requirements are provided for realizing the gear shifting executing mechanism, and the gear shifting executing mechanism of the truck mainly realizes gear selection and locking functions by depending on a cylinder for ensuring the accuracy and reliability of gear change during automobile speed change. The gear shifting actuating mechanism often adopts a gear selecting cylinder and a gear locking cylinder which are perpendicular to each other to be matched with each other to achieve the purpose of gear shifting and speed changing, the gear selecting cylinder and the gear locking cylinder adopt a multi-stroke displacement driving shifting fork to drive a variable speed wheel in a gearbox to slide, so that the switching of different gears is realized, correspondingly, when the gear shifting is implemented by the gear selecting cylinder and the gear locking cylinder in different stroke stages, the risk of inaccurate gear shifting exists, particularly, after the gear shifting actuating mechanism is used for a long time, the structural loss exists, the inaccuracy of gear shifting is more prominent, the instability of driving speed changing is caused, and the problem of driving safety is influenced. In addition, the multi-stroke gear selecting cylinder and the gear locking cylinder also have the problems of high manufacturing difficulty and high cost.

Disclosure of Invention

The invention aims to provide a novel gear shifting and speed changing executing device, and aims to solve the problem that driving safety is affected due to inaccurate gear shifting of a traditional gear shifting executing mechanism of a truck.

In order to achieve the purpose, the invention adopts the technical scheme that: provided is a novel gear shifting variable speed execution device, comprising:

an end cap;

the plurality of shifting forks are arranged below the end covers in a sliding manner;

the gear shifting cylinders are fixedly arranged on the lower end face of the end cover, are axially parallel and are connected with the plurality of shifting forks in a one-to-one correspondence mode, and the gear shifting cylinders are used for driving the shifting forks to drive the variable speed wheels to shift gears in a sliding mode.

As another embodiment of this application, a plurality of shift cylinder's fixed cylinder liner with the end cover integrated into one piece.

As another embodiment of this application, shift cylinder tip is provided with the reinforcement cover, the reinforcement cover with end cover integrated into one piece.

As another embodiment of the present application, the method further includes:

the supporting seats are fixedly arranged on the lower end face of the end cover;

the plurality of sliding rods are arranged on the supporting seat in an axial sliding mode along the gear shifting cylinder, and the shifting fork is fixedly arranged on the sliding rods;

the connecting pieces are respectively and fixedly connected with the sliding rod and the piston rod of the gear shifting cylinder;

the gear shifting cylinder drives the sliding rod to move by means of connecting the gear shifting cylinder and is used for driving the shifting fork to slide.

As another embodiment of the present application, the connector includes:

a first connecting part connected to an end of the piston rod;

and the second connecting part is arranged on one side of the first connecting part and is connected with the sliding rod.

As another embodiment of this application, set up a plurality of mounting holes that are used for installing position sensor on the supporting seat, position sensor is used for detecting the gear.

As another embodiment of the application, a plurality of connecting holes are formed in the circumferential direction of the end cover.

As another embodiment of this application, a plurality of gas pockets that are used for the intercommunication shift the cylinder are seted up to the end cover.

As another embodiment of this application, a plurality of mounting grooves have been seted up to the lower terminal surface of end cover, shift the cylinder install in the mounting groove.

The novel gear shifting and speed changing execution device provided by the invention has the beneficial effects that: compared with the prior art, the novel gear shifting and speed changing execution device provided by the invention adopts the plurality of gear shifting cylinders as power elements for driving the shifting forks to implement gear shifting, so that the starting point position and the end point position of the stroke of the gear shifting cylinders are used as the switching points of gears, and the accuracy of executing gear shifting is ensured; secondly, a plurality of gear shifting cylinders are arranged on the same end cover, so that on one hand, a gear shifting actuating mechanism with an integral structure is formed, the gear shifting actuating mechanism is convenient to install, and compared with the traditional gear shifting actuating mechanism, the gear shifting actuating mechanism is more advanced in technology; on the other hand, compare traditional shift technique and be provided with selection shelves and lock shelves function respectively, the multiple stroke through selecting shelves cylinder and lock shelves cylinder is set for realizing the selection of many gears simultaneously, when needs switch between different gears, cause very easily because the stroke of selecting shelves cylinder and lock shelves cylinder is inaccurate and influence the switching of gear, the novel variable speed final controlling element that shifts that this application provided then accomplishes the switching of different gears through a plurality of cylinders of shifting gears, can avoid totally because the unsafe emergence of shifting gears that causes of the stroke of the cylinder of shifting gears.

The invention provides a vehicle gearbox which comprises the novel gear shifting and speed changing execution device.

The gearbox for the vehicle has the beneficial effects that: compared with the prior art, the vehicle gearbox provided by the invention has the advantages that the plurality of gear shifting cylinders and the plurality of shifting forks are integrated on the same end cover together, and the end cover is directly arranged on the gearbox, so that the structure is completely novel, the switching of the output rotating speed of the gearbox is realized, and compared with the gearbox with the traditional pneumatic sliding gear mechanism, the gearbox provided by the invention has the advantages that the structure is more compact, the installation is convenient, and the gear switching is accurate.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a novel gear shifting and speed changing execution device provided by an embodiment of the invention;

FIG. 2 is a schematic structural view of an end cap and a plurality of shift cylinder assemblies according to an embodiment of the present invention;

fig. 3 is a schematic view of an assembly structure of the novel gear shifting and speed changing execution device and the gearbox provided by the embodiment of the invention.

In the figure: 100. an end cap; 200. a supporting seat; 201. mounting holes; 202. a connecting member; 300. a first reinforcement sleeve; 301. a first cylinder liner; 302. a first piston rod; 303. a first slide bar; 304. a first shift fork; 400. a second reinforcement sleeve; 401. a second cylinder liner; 402. a second piston rod; 403. a second slide bar; 404. A second fork; 500. a third reinforcement sleeve; 501. a third cylinder liner; 502. a third piston rod; 503. a third slide bar; 504. a third shift fork; 601. a fourth cylinder liner; 602. a fourth piston rod; 603. a fourth slide bar; 604. a fourth shift fork; 700. a gearbox.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a novel gear shifting and speed changing device provided by the present invention will now be described. The novel gear shifting and speed changing execution device comprises an end cover 100, a plurality of gear shifting cylinders and a plurality of shifting forks; the plurality of shifting forks are arranged below the end cover 100 in a sliding manner; the plurality of shifting cylinders are fixedly arranged on the lower end face of the end cover 100, are axially parallel and are connected with the plurality of shifting forks in a one-to-one correspondence mode, and the shifting cylinders are used for driving the shifting forks to drive the speed change wheels to slide and shift gears.

The novel gear shifting and speed changing execution device provided by the invention has the beneficial effects that: compared with the prior art, the novel gear shifting and speed changing execution device provided by the invention adopts the plurality of gear shifting cylinders as power elements for driving the shifting forks to implement gear shifting, so that the starting point position and the end point position of the stroke of the gear shifting cylinders are used as the switching points of gears, and the accuracy of executing gear shifting is ensured; secondly, a plurality of gear shifting cylinders are arranged on the same end cover 100, so that on one hand, a gear shifting actuating mechanism with an integral structure is formed, the gear shifting actuating mechanism is convenient to install, and compared with the traditional gear shifting actuating mechanism, the gear shifting actuating mechanism is more advanced in technology; on the other hand, compare traditional shift technique and be provided with selection shelves and lock shelves function respectively, the multiple stroke through selecting shelves cylinder and lock shelves cylinder is set for realizing the selection of many gears simultaneously, when needs switch between different gears, cause very easily because the stroke of selecting shelves cylinder and lock shelves cylinder is inaccurate and influence the switching of gear, the novel variable speed final controlling element that shifts that this application provided then accomplishes the switching of different gears through a plurality of cylinders of shifting gears, can avoid totally because the unsafe emergence of shifting gears that causes of the stroke of the cylinder of shifting gears. In this embodiment, the novel gear shifting and speed changing execution device provided by the application adopts a plurality of gear shifting cylinders including a first cylinder, a second cylinder, a third cylinder and a reverse gear cylinder; the first cylinder is connected with a first shifting fork 304 for driving and controlling fifth gear and sixth gear, the second cylinder is connected with a second shifting fork 404 for driving and controlling third gear and fourth gear, the third cylinder is connected with a third shifting fork 504 for controlling first gear and second gear, and the reverse gear cylinder is connected with a fourth shifting fork 604 for driving and controlling reverse gear.

As a specific embodiment of the novel gear shifting and speed changing actuating device provided by the present invention, please refer to fig. 1, the fixed cylinder sleeves of the plurality of gear shifting cylinders are integrally formed with the end cover 100. In this embodiment, a plurality of fixed cylinder liners include first cylinder liner 301, second cylinder liner 401, third cylinder liner 501 and fourth cylinder liner 601 and respectively with end cover 100 integrated into one piece, the novel variable speed final controlling element that shifts that this application provided has made huge technological breakthrough in the aspect of the structure on the one hand, reasonable spatial layout has realized the global design of actuating mechanism that shifts on end cover 100 through first cylinder liner 301, second cylinder liner 401, third cylinder liner 501 and fourth cylinder liner 601, and the accuracy of the operation of can guaranteeing to shift is indecisely moreover. The first cylinder is provided with a first piston rod 302, and the first piston rod 302 is connected in the first cylinder sleeve 301 in a sliding manner; the second cylinder is provided with a second piston rod 402, and the second piston rod 402 is connected in a second cylinder sleeve 401 in a sliding manner; the third cylinder is provided with a third piston rod 502, and the third piston rod 502 is connected in a third cylinder sleeve 501 in a sliding manner; the reverse gear cylinder is provided with a fourth piston rod 602, and the fourth piston rod 602 is slidably connected in a fourth cylinder sleeve 601.

As a specific embodiment of the novel gear shifting and speed changing actuating device provided by the present invention, please refer to fig. 1-2, a reinforcing sleeve is disposed at an end of the gear shifting cylinder, and the reinforcing sleeve and the end cover 100 are integrally formed. In the present embodiment, by providing a first reinforcement sleeve 300 at the first cylinder end; the second cylinder end is provided with a second reinforcing sleeve 400; a third reinforcing sleeve 500 is arranged at the end part of the third cylinder; first reinforcement cover 300, second reinforcement cover 400 and third reinforcement cover 500 and end cover 100 integrated into one piece, rigidity and the durability of each cylinder of shifting greatly help the novel variable speed final controlling element's that shifts that this application provided job stabilization nature, guarantee the accuracy of the operation of shifting.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, in which the open end of the fixed cylinder liner faces to the middle position of the end cover 100. In the embodiment, the first cylinder sleeve 301, the second cylinder sleeve 401, the third cylinder sleeve 501 and the fourth cylinder sleeve 601 are axially arranged in parallel with each other on the lower end surface of the end cover 100; the third cylinder sleeve 501 is positioned at one side of the end cover 100, and the first cylinder sleeve 301, the second cylinder sleeve 401 and the fourth cylinder sleeve 601 are positioned at the other side; the second cylinder sleeve 401 and the third cylinder sleeve 501 protrude out of the upper end face of the end cover 100, and the axes of the second cylinder sleeve 401 and the third cylinder sleeve 501 are in the same first plane parallel to the lower end face of the end cover 100; the first cylinder sleeve 301 and the fourth cylinder sleeve 601 are respectively positioned at the upper side and the lower side of the second cylinder sleeve 401, the axes of the first cylinder sleeve and the fourth cylinder sleeve are positioned in a same second plane parallel to the lower end face of the end cover 100, and the first plane is closer to the lower end face of the end cover 100 than the second plane; the spatial layout of corresponding cylinders of shifting is implemented according to the position of change gear in gearbox 700 to be convenient for, also can increase and decrease the quantity of the cylinder of shifting simultaneously according to actual need, satisfies the adaptability requirement to different gearboxes 700. The end part of each fixed cylinder sleeve is provided with a sealing cover for sealing, the sealing cover is completely embedded in the fixed cylinder sleeve, and the sealing cover is axially and fixedly connected with the fixed cylinder sleeve through a retainer ring, so that the structure simplification design of each gear shifting cylinder is realized, and the space on the end cover 100 is saved; the end cover 100 is provided with the stop blocks for fixing the sealing covers at the ends of the second cylinder sleeve 401 and the third cylinder sleeve 501 respectively, so that the processing of the inner circles of the second cylinder sleeve 401 and the third cylinder sleeve 501 is facilitated on the one hand, and on the other hand, the stop blocks are completely embedded in the end cover 100, so that the novel gear shifting variable speed executing device provided by the application is facilitated to be assembled and connected with the gearbox 700, and good sealing performance is formed.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1-2, the novel gear shifting and speed changing execution device of the present invention further includes: a plurality of support blocks 200, a plurality of slide bars, and a plurality of connectors 202; a plurality of supporting seats 200 are fixedly arranged on the lower end surface of the end cover 100; the sliding rod is arranged on the supporting seat 200 in an axial sliding mode along the gear shifting cylinder, and the shifting fork is fixedly arranged on the sliding rod; the connecting piece 202 is respectively fixedly connected with the sliding rod and the piston rod of the gear shifting cylinder; the shifting cylinder drives the sliding rod to move by means of the connecting piece 202 so as to drive the shifting fork to slide. In this embodiment, the plurality of sliding rods include a first sliding rod 303, a second sliding rod 403, a third sliding rod 503 and a fourth sliding rod 603, and each shifting cylinder in the novel shifting and speed changing execution device provided by the present application does not adopt a corresponding piston rod to directly drive a shift fork to implement a shifting operation, but drives the shifting cylinder through a sliding rod fixed connection shift fork corresponding to each shifting cylinder one to one, that is, the first piston rod 302 of the first cylinder drives the first sliding rod 303, the second piston rod 402 of the second cylinder drives the second sliding rod 403, the third piston rod 502 of the third cylinder drives the third sliding rod 503 and the fourth piston rod 602 of the reverse gear cylinder drives the fourth sliding rod 603 to respectively drive the first shift fork 304, the second shift fork 404, the third shift fork 504 and the fourth shift fork 604 to implement a shifting operation. Specifically, each sliding rod is arranged in parallel and is connected to the supporting base 200 in a sliding manner through two end supports, the piston rod of each shift cylinder is connected with the corresponding sliding rod through connecting pieces 202 with different shapes, and when a certain gear needs to be hung, the piston rod of a certain shift cylinder moves, so that the corresponding sliding rod is driven to slide by the corresponding connecting piece 202; on the one hand, the unstable occurrence of the piston rod motion of the shifting cylinder caused by the transient fluctuation change of the air flow can be completely avoided, and on the other hand, the two end parts of the sliding rod are slidably supported on the plurality of supporting seats 200, so that the stability of the sliding rod motion is enhanced, and the stability and the accuracy of the shifting fork motion are ensured.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1-2, in which the connecting member 202 includes a first connecting portion and a second connecting portion; the first connecting part is connected to the end part of the piston rod; the second connecting portion is arranged on one side of the first connecting portion and connected with the sliding rod. In this embodiment, the first connecting portion and the second connecting portion in the connecting member 202 are distributed side by side, through holes may be respectively formed in the first connecting portion and the second connecting portion, the piston rod is connected to the through hole in the first connecting portion by welding or pin connection or thread connection, and the sliding rod passes through the through hole in the connecting portion and then is connected by welding or pin connection, so that the stability of linkage between the piston rod and the sliding rod of the shift cylinder is achieved; in addition, in order to ensure the accuracy of switching between different gears, the shifting fork needs different motion parameters to be set, the structure design of each connecting piece 202 structure can be optimized according to the space position between different supporting seats 200 and the stroke size of each shifting cylinder, the corresponding shifting cylinder is driven by the connecting piece 202 to move to play a limiting role, and the switching accuracy of different gears is ensured.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 3, the end cap 100 is provided with a base seat 203 respectively connected to the sliding rods in a sliding manner. In this embodiment, the base seat 203, which is slidably connected to each sliding rod, is disposed at the center of the end cap 100, and is matched with each supporting seat 200 to support each sliding rod, so as to ensure the stability of each sliding rod; on the other hand, each slide bar is sliding connection simultaneously on foundatin base 203, under the relatively fixed prerequisite of gearbox 700 inner structure, is convenient for keep the relative position of whole slide bars and drive the uniformity of corresponding shift fork motion separately to guarantee the stability and the accuracy of shifting.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 3, a plurality of mounting holes 201 for mounting a position sensor are disposed on a support base 200, and the position sensor is used for detecting a gear position. In this embodiment, a plurality of mounting holes 201 for mounting a gear position sensor are provided on the support base 200, so that when different gears are switched, the accuracy of detecting the gear position is ensured; in addition, by arranging the mounting holes 201 on the base seats 203 slidably connected to the respective slide rods, and projecting the base seats 203 from the upper end surface and the lower end surface of the end cover 100, respectively, the detection positions of the respective shift position sensors can be easily confirmed and assembled; and machining of each mounting hole 201.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, in which a plurality of connecting through holes are disposed in a circumferential direction of the end cover 100. In this embodiment, with the help of all connect through-holes that end cover 100 circumference set up, can realize the assembly connection of the novel variable speed actuating device of shifting that this application provided and gearbox 700, guarantee simultaneously in the firm stability of each side.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 3, bosses are circumferentially disposed on the lower end surface of the end cover 100, and the connection through holes are disposed along the bosses; in this embodiment, the end cover 100 and the transmission case 700 are well matched by the boss axially arranged on the end cover 100, and the connection stability and sealing performance are ensured.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 3, the end cover 100 is provided with a plurality of air holes for communicating with the shift cylinder. In this embodiment, all the shift cylinders are arranged on the end cover 100, and the fixed cylinder sleeves of the shift cylinders are integrally formed with the end cover 100, so that the structural design is very convenient to simplify, and the processing is convenient; meanwhile, when the novel gear shifting and speed changing execution device provided by the application is installed on the gearbox 700, the pipeline connection is facilitated, and the pipeline connection is facilitated.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and 3, a plurality of mounting grooves are formed on the lower end surface of the end cover 100, and the shift cylinder is mounted in the mounting grooves. In the embodiment, on one hand, the gear shifting cylinder is convenient to position and install, the assembly process is simplified, and the accurate positioning of the shifting fork is facilitated; on the other hand, the spatial arrangement of the individual shift cylinders and the individual slide rods on the lower end face of the end cap 100 is facilitated according to the structural features in the gearbox 700.

As a specific implementation manner of the embodiment of the invention, each gear shifting cylinder is controlled to move through an electromagnetic valve, the novel gear shifting variable speed execution device provided by the application controls each electromagnetic valve through a controller to control the on-off of an air source of each gear shifting cylinder, and the controller is electrically connected with each gear position sensor. In this embodiment, set up the break-make of solitary solenoid valve come the air supply of control shift cylinder for every shift cylinder, can improve the sensitivity and the accuracy that shift cylinder action was carried out greatly, judge the accurate of the motion position of corresponding shift fork with the help of the position sensor of each gear simultaneously, the controller can respond fast to the position of each shift fork, thereby control battery valve break-make electricity realizes shift cylinder's the action of shifting and carries out.

Referring to fig. 3, a transmission for a vehicle according to the present invention will now be described. The vehicle gearbox comprises the novel gear shifting and speed changing execution device.

The gearbox for the vehicle has the beneficial effects that: compared with the prior art, the vehicle gearbox provided by the invention has the advantages that the plurality of gear shifting cylinders and the plurality of shifting forks are integrated on the same end cover 100 together, and are directly installed on the gearbox 700 by means of the end cover 100, the structure is completely novel, the switching of the output rotating speed of the vehicle gearbox 700 is realized, and compared with the gearbox 700 with the traditional pneumatic sliding gear mechanism, the vehicle gearbox provided by the invention has the advantages that the structure is more compact, the installation is convenient, and the gear switching is accurate.

As a specific embodiment of the novel gear shifting and speed changing actuator provided by the present invention, please refer to fig. 1, an end cover 100 is embedded on a housing of a vehicle transmission 700. In this embodiment, because the novel variable speed final controlling element that shifts that this application provided sets up each cylinder of shifting at the lower terminal surface of end cover 100, just can realize the assembly of whole novel variable speed final controlling element that shifts and automobile-used gearbox 700 with the help of end cover 100, also can guarantee the accurate cooperation of each shift fork and automobile-used gearbox 700 internal change wheel simultaneously. In addition, the end cover 100 is embedded in the shell of the gearbox 700, and compared with the traditional vehicle gear shifting actuating mechanism, the vehicle gearbox is more compact in structure, more ingenious in design and more attractive in appearance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.