CN212601637U

CN212601637U - CVT gearbox reverse gear friction plate assembly fixture

Info

Publication number: CN212601637U
Application number: CN202021332688.0U
Authority: CN
Inventors: 王文浩; 殷帅; 许超; 刘顺
Original assignee: Anhui Technical College of Mechanical and Electrical Engineering
Current assignee: Anhui Technical College of Mechanical and Electrical Engineering
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-02-26
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a CVT gearbox speed in reverse friction disc assembly fixture, the utility model designs has first straight line electric jar and second straight line electric jar, drives two straight line electric jars, and the rolling disc can freely move in two support frame scopes for when assembly work, can assemble a plurality of planet carrier assemblies once, improved work efficiency; the utility model discloses a design has cylinder and motor, when using, it makes the stopper all cooperate with the clearance between the T type intertooth space in the upper end friction plate to drive actuating cylinder, rotate arc and the friction disc of upper end, make the stopper be located directly over the clearance between the T type intertooth space in the intermediate position friction disc, it makes the stopper all cooperate with the clearance between the T type intertooth space in the intermediate position friction disc to drive actuating cylinder downstream, so relapse, make the clearance homogeneous phase cooperation between the T type intertooth space in stopper and three friction disc, the straightness that hangs down of three friction disc has been guaranteed, need not artifical rotatory friction disc that makes a round trip, and the work efficiency is improved, and the labor intensity is reduced.

Description

CVT gearbox reverse gear friction plate assembly fixture

Technical Field

The utility model relates to an assembly field of gearbox, specific is a CVT gearbox speed in reverse friction disc assembly fixture.

Background

In the process of assembling the planet carrier assembly of the CVT assembly line gearbox into the gearbox, the problems of difficult assembly, long time and the like exist.

A certain gap exists between a friction plate of a reverse gear brake and a transmission shell, the circle centers of three friction plates and the circle center of a pulley shaft cannot be guaranteed to be on the same center in the assembling process, all T-shaped teeth in the three friction plates must be kept consistent on a vertical line to guarantee that a planet carrier assembly can be smoothly installed, and displacement is easily generated in the assembling process, so that all tooth shapes of the three friction plates cannot be in one-to-one correspondence. In order to combine the spline in the planet carrier assembly with the spline of the input pulley shaft, the friction plate is easy to be dislocated by continuously rotating back and forth in the assembling process, so that the friction plate must be readjusted, and the labor intensity of workers is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects mentioned in the background technology, the utility model aims to provide a CVT gearbox reverse gear friction plate assembly tool, which is provided with a first linear electric cylinder and a second linear electric cylinder for driving the first linear electric cylinder and the second linear electric cylinder, and a rotating disc can freely move in the range of two support frames, so that a plurality of planet carrier assemblies can be assembled at a time during assembly work, thereby improving the work efficiency;

the utility model discloses a design has cylinder and motor, when using, it makes the stopper all cooperate with the clearance between the T type intertooth space in the upper end friction plate to drive actuating cylinder, rotate arc and the friction disc of upper end, make the stopper be located directly over the clearance between the T type intertooth space in the intermediate position friction disc, it makes the stopper all cooperate with the clearance between the T type intertooth space in the intermediate position friction disc to drive actuating cylinder downstream, so relapse, make the clearance homogeneous phase cooperation between the T type intertooth space in stopper and three friction disc, the straightness that hangs down of three friction disc has been guaranteed, need not artifical rotatory friction disc that makes a round trip, and the work efficiency is improved, and the labor intensity is reduced.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a CVT gearbox reverse gear friction disc assembly fixture, includes the support frame of two symmetric distributions, the inner wall of support frame all is fixed with first straight line electric jar, and first straight line electric jar includes first electric jar guide rail, and it is provided with first electric jar slider to slide on the first electric jar guide rail.

And a second linear electric cylinder is arranged between the first linear electric cylinders, the bottoms of the two ends of the second linear electric cylinder are fixed on a second electric cylinder sliding block, the second linear electric cylinder comprises a second electric cylinder guide rail, and a second electric cylinder sliding block is arranged on the second electric cylinder guide rail in a sliding manner.

The bottom of the second electric cylinder sliding block is provided with a connecting plate, the bottom of the connecting plate is fixedly provided with an air cylinder, and the bottom of an air pressure rod on the air cylinder is fixedly provided with a bearing plate.

The bottom of accepting the board is fixed with the motor, and the output of motor is fixed with the pivot through the shaft coupling, and the below of pivot is provided with the rolling disc, and the upper end central point of rolling disc puts and is fixed with the spacing sleeve with pivot matched with.

The side end of the rotating disc is provided with arc-shaped plates distributed in an array mode, the side walls of the arc-shaped plates are provided with limiting blocks, and the limiting blocks are matched with gaps between T-shaped teeth in the friction plate.

Further, the bottom of support frame is provided with the backup pad, and the inside wall that the backup pad is close to the top all opens the spout that is the T type.

Furthermore, connecting blocks are fixed at two ends of the two linear electric cylinders, and T-shaped sliding blocks matched with the sliding grooves are arranged at the end parts of the connecting blocks.

Furthermore, a threaded hole is formed in the side wall of the limiting sleeve, and a screw rod is connected with the threaded hole in an internal thread mode.

The utility model has the advantages that:

1. the utility model is provided with a first linear electric cylinder and a second linear electric cylinder to drive the first linear electric cylinder and the second linear electric cylinder, and the rotating disc can freely move in the range of two support frames, so that a plurality of planet carrier assemblies can be assembled at a time during assembly work, thereby improving the work efficiency;

2. the utility model discloses a design has cylinder and motor, when using, it makes the stopper all cooperate with the clearance between the T type intertooth space in the upper end friction plate to drive actuating cylinder, rotate arc and the friction disc of upper end, make the stopper be located directly over the clearance between the T type intertooth space in the intermediate position friction disc, it makes the stopper all cooperate with the clearance between the T type intertooth space in the intermediate position friction disc to drive actuating cylinder downstream, so relapse, make the clearance homogeneous phase cooperation between the T type intertooth space in stopper and three friction disc, the straightness that hangs down of three friction disc has been guaranteed, need not artifical rotatory friction disc that makes a round trip, and the work efficiency is improved, and the labor intensity is reduced.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection between the support frame and the first linear cylinder;

FIG. 3 is a schematic view of the second linear electric cylinder and air cylinder connection of the present invention;

fig. 4 is a schematic view of the connection structure of the motor of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The utility model provides a CVT gearbox reverse gear friction disc assembly fixture, as shown in fig. 1 and 2, includes two symmetric distribution's support frame 1, and the bottom of support frame 1 is provided with backup pad 11, and backup pad 11 all opens the spout 12 that is the T type near the inside wall on top.

The inner walls of the support frames 1 are fixed with first linear cylinders 2, and the first linear cylinders 2 are arranged below the sliding chutes 12. The first linear cylinder 2 includes a first cylinder rail 21, and a first cylinder slider 22 is slidably disposed on the first cylinder rail 21.

As shown in fig. 1 and 3, a second linear electric cylinder 3 is arranged between the first linear electric cylinders 2, and the bottoms of both ends of the second linear electric cylinder 3 are fixed on the first electric cylinder sliding blocks 22. The second linear electric cylinder 3 comprises a second electric cylinder guide rail 31, and a second electric cylinder slider 32 is slidably arranged on the second electric cylinder guide rail 31. The two ends of the second linear electric cylinder 3 are both fixed with connecting blocks 33, and the end parts of the connecting blocks 33 are both provided with T-shaped sliding blocks 331 matched with the sliding grooves 12. By driving the first linear electric cylinder 2, the second linear electric cylinder 3 can be driven to move in the direction of the chute 12.

The bottom end of the second cylinder slide block 32 is provided with a connecting plate 321, the bottom end of the connecting plate 321 is fixed with the cylinder 4, and the bottom end of the pneumatic rod 41 on the cylinder 4 is fixed with the bearing plate 42.

As shown in fig. 1 and 4, a motor 5 is fixed at the bottom end of the bearing plate 42, a rotating shaft 51 is fixed at the output end of the motor 5 through a coupling, a rotating disc 52 is arranged below the rotating shaft 51, a limiting sleeve 521 matched with the rotating shaft 51 is fixed at the central position of the upper end of the rotating disc 52, a threaded hole 522 is formed in the side wall of the limiting sleeve 521, a screw 523 is connected with the threaded hole 522 in an internal thread manner, and the rotating shaft 51 can be fixed by screwing the screw 523.

The side end of the rotating disc 52 is provided with arc plates 53 distributed in an array manner, the side walls of the arc plates 53 are provided with limit blocks 531, and the limit blocks 531 are matched with gaps between T-shaped teeth in the friction plate.

By driving the second linear electric cylinder 3, the second electric cylinder slider 32 can move the rotary disk 52 in the direction of the second electric cylinder guide rail 31. Therefore, by driving the first and second linear electric cylinders 2 and 3, the rotary disc 52 can be freely moved within the range of the two support frames 1.

The circle centers of three friction plates of a reverse gear brake and the circle center of an input pulley shaft are required to be on the same central point to ensure that a planet carrier assembly can be smoothly installed, and a certain gap exists between the friction plate of the reverse gear brake and a transmission shell, so that the circle centers of the three friction plates and the circle center of the input pulley shaft cannot be guaranteed to be on the same central point in the assembling process. All T-shaped teeth in the three friction plates are required to be kept consistent on a vertical line to ensure that the planet carrier assembly can be smoothly assembled, and displacement is easy to generate in the assembling process, so that all the teeth of the three friction plates cannot be in one-to-one correspondence.

When the device is used, a plurality of planet carrier assemblies are fixed between two support frames 1, the driving cylinder 4 drives the arc-shaped plate 53 and the limiting block 531 to move downwards, the limiting block 531 is matched with the gap between the T-shaped teeth in the upper-end friction plate, the arc-shaped plate 53 and the friction plate at the upper end are rotated, the limiting block 531 is positioned right above the gap between the T-shaped teeth in the middle-position friction plate, the driving cylinder 4 moves downwards, the limiting block 531 is matched with the gap between the T-shaped teeth in the middle-position friction plate, the operation is repeated, the limiting block 531 is matched with the gap between the T-shaped teeth in the three friction plates, and the verticality of the three friction plates is guaranteed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean 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 foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The assembly tool for the reverse gear friction plate of the CVT comprises two support frames (1) which are symmetrically distributed, and is characterized in that a first linear electric cylinder (2) is fixed on the inner wall of each support frame (1), each first linear electric cylinder (2) comprises a first electric cylinder guide rail (21), and a first electric cylinder sliding block (22) is arranged on each first electric cylinder guide rail (21) in a sliding mode;

a second linear electric cylinder (3) is arranged between the first linear electric cylinders (2), the bottoms of two ends of the second linear electric cylinder (3) are fixed on the first electric cylinder sliding blocks (22), the second linear electric cylinder (3) comprises a second electric cylinder guide rail (31), and a second electric cylinder sliding block (32) is arranged on the second electric cylinder guide rail (31) in a sliding manner;

a connecting plate (321) is arranged at the bottom end of the second electric cylinder sliding block (32), an air cylinder (4) is fixed at the bottom end of the connecting plate (321), and a bearing plate (42) is fixed at the bottom end of an air pressure rod (41) on the air cylinder (4);

a motor (5) is fixed at the bottom end of the bearing plate (42), a rotating shaft (51) is fixed at the output end of the motor (5) through a coupler, a rotating disc (52) is arranged below the rotating shaft (51), and a limiting sleeve (521) matched with the rotating shaft (51) is fixed at the central position of the upper end of the rotating disc (52);

arc plates (53) distributed in an array mode are arranged at the side end of the rotating disc (52), limiting blocks (531) are arranged on the side walls of the arc plates (53), and the limiting blocks (531) are matched with gaps between the T-shaped teeth in the friction plate.

2. The assembly tooling for the reverse friction plate of the CVT gearbox is characterized in that a support plate (11) is arranged at the bottom end of the support frame (1), and T-shaped sliding grooves (12) are formed in the inner side wall, close to the top end, of the support plate (11).

3. The assembly tooling for the reverse friction plate of the CVT gearbox is characterized in that two ends of the two linear electric cylinders (3) are respectively fixed with a connecting block (33), and the end parts of the connecting blocks (33) are respectively provided with a T-shaped sliding block (331) matched with the sliding groove (12).

4. The assembly tooling for the reverse friction plate of the CVT gearbox is characterized in that a threaded hole (522) is formed in the side wall of the limiting sleeve (521), and a screw rod (523) is connected to the threaded hole (522) in an internal thread mode.