Transmission gear shifting experiment tool

Abstract

The utility model relates to the technical field of transmission tools, in particular to a transmission gear shifting experiment tool which comprises a supporting block, a shifting fork assembly, a locking mechanism and a fastening bolt assembly, a vertically-through shifting fork hole is formed in the supporting block, the shifting fork assembly vertically penetrates through the shifting fork hole, the locking mechanism is rotationally connected with the supporting block, and the fastening bolt assembly is fixedly connected with the supporting block. The locking mechanism is horizontally arranged in the supporting block and horizontally penetrates through the shifting fork hole, the shifting fork assembly is rotationally connected with the locking mechanism, and the fastening bolt assembly vertically penetrates through the supporting block; the shifting fork assembly comprises a plurality of sets of shifting forks, each shifting fork comprises a shifting rod part and a shifting fork part, the shifting rod parts and the shifting fork parts are fixedly connected, and the junctions of the shifting rod parts and the shifting fork parts are rotationally installed on the locking mechanism. The shifting fork assembly is rotationally connected with the locking mechanism to form a lever structure, so that the gear shifting operation is time-saving and labor-saving; the multiple sets of shifting forks correspond to the gear shifting mechanism, gear shifting operation can be accurately completed, and damage to the gear shifting mechanism is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission tooling, in particular to a transmission shifting test tooling. Background Art

[0002] The transmission is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or phased manner. The transmission consists of a speed transmission mechanism and an operating mechanism. Some cars also have a power output mechanism. As an important part of a car, the function and status of the transmission directly affect the performance and safety of the car. During long-term use, due to frequent gear shifting operations, the internal parts of the transmission may wear, deform, and cause problems such as transmission failure.

[0003] The transmission needs to be tested for gear shifting after repair. In the absence of an air source, it can generally only be tested by manual gear shifting. The staff usually uses a screwdriver to pry open the gear shift mechanism to achieve the gear shift operation. This operation method is not only laborious, but also cannot accurately complete the desired gear operation. There is a very high possibility of misoperation and may even cause damage to the gear shift mechanism. Summary of the invention

[0004] In order to overcome the above technical problems, the utility model provides a transmission shifting test tool.

[0005] The utility model provides a transmission shift test tooling that adopts the following technical solutions:

[0006] A transmission shifting test tool comprises a support block, a shift fork assembly, a locking mechanism and a fastening bolt assembly, wherein the support block is provided with a shift fork hole which passes through the upper and lower parts, the shift fork assembly vertically passes through the shift fork hole, the locking mechanism is rotatably connected to the support block, the locking mechanism is horizontally arranged inside the support block, the locking mechanism horizontally passes through the shift fork hole, the shift fork assembly is rotatably connected to the locking mechanism, and the fastening bolt assembly is vertically arranged through the support block; the shift fork assembly comprises a plurality of groups of shift forks, the shift forks comprise a shift rod portion and a shift fork portion, the shift rod portion and the shift fork portion are fixedly connected, and the junction of the shift rod portion and the shift fork portion is rotatably mounted on the locking mechanism.

[0007] By adopting the above technical solution, the shift fork assembly is locked and fixed by a locking mechanism to prevent the shift fork assembly from rotating randomly and thus affecting the smooth insertion of the shift fork assembly into the transmission; the shifting test tooling is installed on the transmission by tightening the bolt assembly, and the shift fork assembly is rotatably connected to the locking mechanism to form a lever structure, and the shifting operation is realized by moving the shift rod part so that the shift fork part pries the shifting mechanism, and the lever structure can save time and effort in the shifting operation; several groups of shift forks correspond to the shifting mechanisms respectively, and can accurately complete the shifting operation to avoid damage to the shifting mechanism.

[0008] Preferably, the locking mechanism includes a screw, a spacer block and a movable block, the shaft of the screw is horizontally arranged in the support block, the end of the screw is threadedly connected to the support block, the screw horizontally passes through the fork hole, the fork is rotatably sleeved outside the screw, the spacer block is spaced from the fork, the spacer block is rotatably sleeved outside the screw, a movable block is arranged between the head of the screw and the fork, the movable block is slidably arranged in the support block, and the movable block is rotatably sleeved outside the screw.

[0009] Preferably, the locking mechanism further comprises a handle, and the handle is fixedly mounted on the head of the screw.

[0010] By adopting the above technical solution, the shift fork, the spacer block and the movable block are clamped or loosened by rotating the screw. When the shift fork assembly needs to be inserted into the transmission, the screw is first tightened so that the head of the screw cooperates with the side wall of the shift fork hole to clamp the shift fork, the spacer block and the movable block, so as to prevent the shift fork from rotating randomly and affecting its smooth insertion into the transmission; when the experimental tooling is successfully installed on the transmission, the screw is loosened so that the shift fork, the spacer block and the movable block can all rotate freely on the screw, and the shifting operation can be completed by shifting the lever part at this time; the setting of the handle can make the rotation of the screw more convenient and labor-saving.

[0011] Preferably, the lever portions of the plurality of groups of the shift forks are bent in the same direction at different angles in sequence, and the bending angles are gradually increased according to the arrangement sequence of the shift forks.

[0012] By adopting the above technical solution, the lever part is bent in the same direction at different angles in sequence, and the bending angle is gradually increased according to the arrangement sequence of the shift forks. The operating end of the shift fork, i.e., the lever part, can be separated by a certain distance, thereby avoiding accidental touching of other lever parts during the gear shifting operation, and making the gear shifting operation more accurate.

[0013] Preferably, the fork assembly also includes a baffle, which is fixedly connected to the support block. The baffle is provided in two groups, and the two groups of baffles are respectively arranged on both sides of a plurality of groups of forks, one group of baffles is sleeved on the outside of the spacer block, and the other group of baffles is sleeved on the outside of the movable block, and the bottom extension of the baffle is longer than that of the fork.

[0014] Preferably, baffle grooves are provided on both side walls of the shift fork hole, the baffle grooves are adapted to the baffles, and the baffles are fixedly arranged inside the baffle grooves.

[0015] By adopting the above technical solution and setting a baffle, the shift fork can be limited to avoid the angular deflection of the shift fork while rotating on the screw rod when the shift fork is moved, thereby further ensuring the accuracy of the shifting operation.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. The utility model provides a transmission shift test fixture, which locks and fixes the shift fork assembly through a locking mechanism to prevent the shift fork assembly from rotating randomly and thus affecting the smooth insertion of the shift fork assembly into the transmission; the shift test fixture is installed on the transmission by tightening the bolt assembly, and the shift fork assembly is rotatably connected to the locking mechanism to form a lever structure, and the shift operation is achieved by shifting the shift rod part so that the shift fork part pries the shift mechanism, and the lever structure can save time and effort in the shift operation; a plurality of groups of shift forks correspond to the shift mechanisms respectively, and can accurately complete the shift operation to avoid damage to the shift mechanism.

[0018] 2. The utility model provides a transmission shift test tool, which achieves the clamping or loosening of the shift fork, the spacer block and the movable block by rotating the screw. When the shift fork assembly needs to be inserted into the transmission, the screw is first tightened so that the head of the screw cooperates with the side wall of the shift fork hole to achieve the clamping of the shift fork, the spacer block and the movable block, so as to prevent the shift fork from rotating randomly and affecting its smooth insertion into the transmission; after the test tool is successfully installed on the transmission, the screw is loosened so that the shift fork, the spacer block and the movable block can all rotate freely on the screw, and the shifting operation can be completed by shifting the lever part at this time; the setting of the handle can make the rotation of the screw more convenient and labor-saving.

[0019] 3. The utility model provides a transmission shift test tool, which can separate the operating end of the shift fork, i.e., the shift lever part, by a certain distance, by bending the shift lever part in the same direction at different angles in sequence, and the bending angle gradually increases according to the arrangement sequence of the shift forks, so as to avoid accidental touching of other shift lever parts during the shift operation, and make the shift operation more accurate.

[0020] 4. The utility model provides a transmission shift test tool, which can play the role of limiting the shift fork by setting a baffle, so as to avoid the angular deflection of the shift fork while rotating on the screw rod when the shift fork is shifted, thereby further ensuring the accuracy of the shift operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a transmission shifting test tooling of the utility model;

[0022] Figure 2 It is a side view of a transmission shifting test tooling of the utility model;

[0023] Figure 3 for Figure 2 AA section view in;

[0024] Figure 4 A schematic diagram of a support block of a transmission shift test fixture;

[0025] Figure 5 A cross-sectional view of a support block of a transmission shift test fixture;

[0026] Figure 6 This is a schematic diagram of the shift fork and locking mechanism of the transmission shift test tooling;

[0027] Figure 7 This is a schematic diagram of the transmission shifting test tooling at work.

[0028] Explanation of the reference numerals: 1. support block; 11. fork hole; 111. baffle groove; 12. threaded hole; 13. cylindrical through hole; 2. fork assembly; 21. fork; 211. lever portion; 212. fork portion; 22. baffle; 3. locking mechanism; 31. screw; 32. spacer block; 33. movable block; 34. handle; 4. fastening bolt assembly. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 7 The utility model is described in further detail.

[0030] This embodiment discloses a transmission shift test tool. Figure 1-Figure 7 , including a support block 1, a fork assembly 2, a locking mechanism 3 and a fastening bolt assembly 4. The support block 1 is set as a rectangular block. The support block 1 is provided with a fork hole 11 which passes through from top to bottom. The fork hole 11 is a rectangular hole. The fork assembly 2 vertically passes through the fork hole 11. The support block 1 is also provided with a connecting hole of the locking mechanism 3 which passes through from left to right. The connecting hole of the locking mechanism 3 is vertically intersected with the fork hole 11, that is, the fork hole 11 divides the connecting hole of the locking mechanism 3 into two parts, one part of which is provided with a threaded hole 12, and the other part is a cylindrical through hole 13. The locking mechanism 3 is connected to the support block 1 through the threaded hole 12, and the locking mechanism 3 can rotate in the cylindrical through hole 13. The fork assembly 2 includes three groups of forks 21, which can realize the six-speed shifting operation. The fork 21 includes a shift rod part 2 11 and the fork portion 212, the lever portion 211 and the fork portion 212 are fixedly connected, and the junction of the lever portion 211 and the fork portion 212 is rotatably installed on the locking mechanism 3, and the shift fork 21 is rotatably connected with the locking mechanism 3. The shift fork 21 is rotatably connected with the locking mechanism 3 to form a lever structure, and the shift fork portion 212 pries the shift mechanism to realize the shifting operation by shifting the lever portion 211. The lever structure can save time and effort in the shifting operation. The lever portions 211 of the three groups of shift forks 21 are bent in the same direction at different angles in sequence, and the bending angles are gradually increased according to the arrangement order of the shift forks 21, that is, the operating ends of the shift forks 21, namely the lever portions 211, are separated by a certain distance to avoid accidental touching of other lever portions 211 during the shifting operation, so that the shifting operation is more accurate; the fastening bolt assembly 4 is vertically penetrated through the support block 1, and the shifting experimental tooling can be installed on the transmission.

[0031] Among them, Figure 2-Figure 7As shown, the locking mechanism 3 includes a screw rod 31, a spacer block 32 and a movable block 33. The screw rod 31 is a semi-threaded screw rod. The screw rod 31 horizontally penetrates the fork hole 11. The threaded portion of the screw rod 31 is connected to the threaded hole 12. The fork 21 is rotatably sleeved on the outside of the screw rod 31. The spacer block 32 is rotatably sleeved on the outside of the screw rod 31. The three groups of spacer blocks 32 are spaced apart from the three groups of forks 21. A movable block 33 is arranged between the head of the screw 31 and the fork 21. The movable block 33 is slidably arranged in the cylindrical through hole 13. The movable block 33 is rotatably sleeved on the outside of the screw 31. The locking mechanism 3 also includes a handle 34, which is fixedly mounted on the screw rod. The head of 31, when it is necessary to insert the shift fork assembly 2 into the transmission, firstly, the screw 31 is screwed into the threaded hole 12 by turning the handle 34, so that the head of the screw 31 cooperates with the side wall of the shift fork hole 11 to clamp the shift fork 21, the spacer block 32 and the movable block 33 to prevent the shift fork 21 from rotating randomly and affecting its smooth insertion into the transmission; when the experimental tooling is successfully installed on the transmission, the screw 31 is loosened so that the shift fork 21, the spacer block 32 and the movable block 33 can all rotate freely on the screw 31. At this time, the shifting operation can be completed by shifting the lever part 211. The setting of the handle 34 can make the rotation of the screw 31 more convenient and labor-saving.

[0032] Among them, Figure 1-Figure 6 As shown, the fork assembly 2 also includes a baffle 22, and the baffle 22 is provided with two groups. The two groups of baffles 22 are respectively closely arranged on both sides of the three groups of forks 21, that is, the two groups of baffles 22 sandwich the three groups of forks 21 in the middle, and baffle grooves 111 are opened on the two side walls of the fork hole 11 perpendicular to the axis of the screw 31. The baffle grooves 111 are adapted to the baffle 22, and the baffle 22 is fixedly arranged inside the baffle grooves 111. The two groups of baffles 22 are both sleeved on the outside of the locking mechanism 3, wherein the baffle grooves 111 near the head of the screw 31 are provided. A group of baffles 22 at the top are sleeved on the outside of the movable block 33, and a group of baffles 22 near the threaded part of the screw 31 are sleeved on the outside of the spacer block 32. The top of the baffle 22 is kept flush with the upper end surface of the support block 1, and the bottom extension of the baffle 22 is longer than the fork part 212. The baffle 22 can play the role of limiting the shift fork 21, so as to avoid the situation where the shift fork 21 rotates on the screw 31 and there is an angular deflection when the shift fork 21 is shifted, thereby accidentally touching other gears, thereby further ensuring the accuracy of the shifting operation.

[0033] The working principle of this embodiment is as follows: when there is no air source, when the transmission needs to perform a gear shift test, first turn the handle 34 to screw the screw 31 into the threaded hole 12, so that the shift fork 21, the spacer block 32 and the movable block 33 are clamped, thereby preventing the shift fork 21 from rotating freely and affecting its smooth insertion into the transmission; then insert the shift fork portion 212 of the shift fork assembly 2 into the transmission, and then fasten the experimental tooling to the transmission by tightening the bolt assembly 4, and then loosen the screw 31, so that the shift fork 21, the spacer block 32 and the movable block 33 can all rotate freely on the screw 31, and at this time, the shifting operation can be completed by shifting the lever portion 211.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A transmission shift test tool, characterized in that: The invention comprises a support block (1), a shift fork assembly (2), a locking mechanism (3) and a fastening bolt assembly (4); the support block (1) is provided with a shift fork hole (11) which passes through the support block (1) vertically; the shift fork assembly (2) vertically passes through the shift fork hole (11); the locking mechanism (3) is rotatably connected to the support block (1); the locking mechanism (3) is horizontally arranged inside the support block (1); the locking mechanism (3) horizontally passes through the shift fork hole (11); the shift fork assembly (2) is rotatably connected to the locking mechanism (3); and the fastening bolt assembly (4) vertically passes through the support block (1); the shift fork assembly (2) comprises a plurality of shift fork groups (21); the shift fork (21) comprises a shift rod portion (211) and a shift fork portion (212); the shift rod portion (211) and the shift fork portion (212) are fixedly connected; and the junction between the shift rod portion (211) and the shift fork portion (212) is rotatably mounted on the locking mechanism (3).

2. The transmission shift test tooling according to claim 1, characterized in that: The locking mechanism (3) comprises a screw rod (31), a spacer block (32) and a movable block (33); the rod body of the screw rod (31) is horizontally arranged in the support block (1); the end of the screw rod (31) is threadedly connected to the support block (1); the screw rod (31) horizontally passes through the shift fork hole (11); the shift fork (21) is rotatably sleeved outside the screw rod (31); the spacer block (32) is spaced from the shift fork (21); the spacer block (32) is rotatably sleeved outside the screw rod (31); a movable block (33) is arranged between the head of the screw rod (31) and the shift fork (21); the movable block (33) is slidably arranged in the support block (1); and the movable block (33) is rotatably sleeved outside the screw rod (31).

3. The transmission shift test tooling according to claim 2, characterized in that: The locking mechanism (3) further comprises a handle (34), wherein the handle (34) is fixedly mounted on the head of the screw rod (31).

4. The transmission shift test tooling according to claim 1, characterized in that: The shifting rod portions (211) of a plurality of groups of the shifting forks (21) are bent in the same direction in sequence at different angles, and the bending angles gradually increase according to the arrangement sequence of the shifting forks (21).

5. The transmission shift test tooling according to claim 2, characterized in that: The shift fork assembly (2) further comprises a baffle (22), wherein the baffle (22) is fixedly connected to the support block (1), and two groups of baffles (22) are provided. The two groups of baffles (22) are respectively provided on both sides of the plurality of groups of shift forks (21), one group of baffles (22) is sleeved on the outside of the spacer block (32), and the other group of baffles (22) is sleeved on the outside of the movable block (33), and the bottom extension of the baffle (22) is longer than that of the shift fork portion (212).

6. The transmission shift test tooling according to claim 1, characterized in that: The two side walls of the shift fork hole (11) are provided with baffle grooves (111), the baffle grooves (111) are adapted to the baffles (22), and the baffles (22) are fixedly arranged inside the baffle grooves (111).

Images