CN219170113U

CN219170113U - Press-fitting auxiliary shaft assembly paired-tooth tool

Info

Publication number: CN219170113U
Application number: CN202223573983.7U
Authority: CN
Inventors: 马英满; 戴程鹏; 陈钊; 胡俊杨; 孙赛赛
Original assignee: Anhui Hualing Automobile Co Ltd
Current assignee: Anhui Hualing Automobile Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-13
Anticipated expiration: 2032-12-30

Abstract

The application discloses pressure equipment countershaft assembly is tooth frock, include: the auxiliary shaft locking piston, the gear selecting pin and the three-gear guiding piston are transversely arranged on the supporting block, one end of the auxiliary shaft locking piston is used for extending into a tooth groove of a first gear of the auxiliary shaft, a positioning hole corresponding to the gear selecting pin is formed in the auxiliary shaft, one end of the three-gear guiding piston is used for extending into the tooth groove of the three-gear of the auxiliary shaft, and a first step surface is arranged on the supporting block. The gear selecting pin is arranged on the positioning hole and the supporting block arranged on the auxiliary shaft, the auxiliary shaft is conveniently positioned, in addition, the axial position of the third gear installed on the auxiliary shaft is conveniently controlled through the third gear support, and in addition, the gear selecting pin is convenient to align the third gear through the third gear guide piston, so that the installation accuracy of the third gear is improved.

Description

Press-fitting auxiliary shaft assembly paired-tooth tool

Technical Field

The application relates to the technical field of gearboxes, in particular to a press-fit auxiliary shaft assembly pairing-tooth tool.

Background

Compared with the traditional countershaft gearbox, the double countershaft gearbox can arrange more gear pairs in a limited space to transmit larger torque, but the double countershaft gearbox also has higher requirements on countershaft gears and each tooth on the countershaft in terms of tooth-to-tooth.

At present, teeth used for tooth alignment in auxiliary shaft parts are mainly selected in a visual mark mode, and an auxiliary shaft step and a low gear convex table surface are directly positioned axially, and radial positioning is determined by a piston plugged into a tooth slot. However, the axial positioning of the auxiliary shaft gear is affected by a longer dimension chain, errors can cause dislocation of the auxiliary shaft gears of each gear in the axial direction, and for the inclined tooth auxiliary shaft, errors are likely to occur in the mode of selecting teeth for press mounting after visual marking, so that the assembly precision is low.

Disclosure of Invention

The purpose of this application is to provide a pressure equipment countershaft assembly pair tooth frock, can effectively improve gear installation accuracy.

In order to achieve the above purpose, the present application provides the following technical solutions:

a press-fit layshaft assembly tooth pairing tooling, comprising: the auxiliary shaft locking piston, the gear selecting pin, the third gear guiding piston and the third gear supporting seat are arranged on the base, the auxiliary shaft locking piston, the gear selecting pin and the third gear guiding piston are transversely arranged on the supporting base, one end of the auxiliary shaft locking piston is used for extending into a tooth groove of a first gear of the auxiliary shaft, a positioning hole corresponding to the gear selecting pin is formed in the auxiliary shaft, one end of the third gear guiding piston is used for extending into the tooth groove of the third gear of the auxiliary shaft, a first step surface used for bearing the third gear supporting seat is arranged on the supporting block, and the third gear supporting seat is used for supporting the lower end face of the third gear.

Preferably, the base is provided with a bearing hole, and a mounting surface supporting seat for supporting the bottom end of the auxiliary shaft is arranged in the bearing hole.

Preferably, the auxiliary shaft is further provided with a locking fork, one side of the mounting surface supporting seat is provided with an open groove, and the locking fork is used for pressing the bottom end of the auxiliary shaft into the open groove.

Preferably, the base is further provided with a guide block, one end, far away from the mounting surface supporting seat, of the locking fork opening is provided with a guide rod, and the guide rod is horizontally and slidably connected with the guide block.

Preferably, the four-gear guide piston is transversely mounted on the supporting block, a second step surface for bearing the four-gear support is further arranged on the supporting block, and the four-gear support is used for supporting the lower end surface of the four-gear.

Preferably, the third gear support and/or the fourth gear support are/is a fork seat, an open slot is formed in one side, facing the auxiliary shaft, of the fork seat, and the shaft body of the auxiliary shaft is located in the open slot.

Preferably, the outer side surface of the fork seat is arc-shaped, and the opening groove is a U-shaped groove.

Preferably, the auxiliary shaft further comprises an upper center, and the upper center is used for propping against the upper end of the auxiliary shaft.

Compared with the prior art, the technical scheme has the following advantages:

according to the tool for pressing the auxiliary shaft assembly into the teeth, when the auxiliary shaft locking piston and the three-gear guiding piston are in a pressure release state during pressing, the auxiliary shaft is vertically placed on the base, the auxiliary shaft is manually rotated, the tooth selecting pin corresponds to a positioning hole on the auxiliary shaft, at the moment, the auxiliary shaft locking piston stretches out to a designated position, one end of the auxiliary shaft locking piston stretches into a tooth groove of a first-gear of the auxiliary shaft, after positioning of the auxiliary shaft on the base is completed, the three-gear guiding piston stretches out to the designated position, one end of the three-gear guiding piston stretches into the tooth groove of the three-gear of the auxiliary shaft, the press is operated to press the three-gear, and the lower end face of the three-gear can be supported through the three-gear supporting seat, namely, the three-gear and the three-gear supporting seat are contacted and then stop moving downwards. The gear selecting pin is arranged on the positioning hole and the supporting block arranged on the auxiliary shaft, the auxiliary shaft is conveniently positioned, in addition, the axial position of the third gear installed on the auxiliary shaft is conveniently controlled through the third gear support, and in addition, the gear selecting pin is convenient to align the third gear through the third gear guide piston, so that the installation accuracy of the third gear is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.

FIG. 1 is a cross-sectional view of a press-fit layshaft assembly tooth pairing tooling provided in one embodiment of the present application;

fig. 2 is a schematic perspective view of one view direction of a press-fit auxiliary shaft assembly pair-tooth tooling according to an embodiment of the present application;

fig. 3 is a schematic perspective view of another view direction of a press-fit auxiliary shaft assembly pair tooth tooling according to an embodiment of the present application.

The reference numerals are as follows:

1 is a base, 1-1 is a bearing hole, 1-2 is a supporting block, and 1-3 is a guide block;

2 is a countershaft, 2-1 is a first gear, 2-2 is a second gear, 2-3 is a third gear, 2-4 is a fourth gear, and 2-5 is a positioning hole;

3 is a mounting surface supporting seat;

4 is a locking fork opening, and 4-1 is a guide rod;

the auxiliary shaft locking piston is 5, the gear selecting pin is 6, the three-gear support is 7, the three-gear guiding piston is 8, the four-gear support is 9, the four-gear guiding piston is 10, and the upper center is 11.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Please refer to fig. 1-3.

The embodiment of the application provides a pressure equipment countershaft assembly pair tooth frock, include: the auxiliary shaft locking piston 5, the gear selecting pin 6, the three-gear guiding piston 8 and the three-gear supporting seat 7 are arranged on the base 1, the base 1 is used for bearing the auxiliary shaft 2 which is vertically arranged, the base 1 is also provided with a supporting block 1-2, the supporting block 1-2 is arranged on one side above the base 1, the supporting block 1-2 can be integrally formed on the base 1, the auxiliary shaft locking piston 5, the gear selecting pin 6 and the three-gear guiding piston 8 are transversely arranged on the supporting block 1-2, the gear selecting pin 6 is optionally a spring pin, the auxiliary shaft 2 is provided with a positioning hole 2-5, the positioning hole 2-5 is preferably arranged at a position between the first gear 2-1 and the second gear 2-2, the first gear 2-1 and the second gear 2 are gear shafts which are integrally formed with the auxiliary shaft 2, the three-gear 2-3 is of a gear structure with a mounting hole in the middle, and the supporting block 1-2 is provided with a first step surface for bearing the three-gear supporting seat 7. During press fitting, the auxiliary shaft locking piston 5 and the third gear guiding piston 8 are in a pressure release state, the auxiliary shaft 2 is vertically placed on the base 1, the auxiliary shaft 2 is manually rotated, the tooth selecting pin 6 corresponds to the positioning hole 2-5 on the auxiliary shaft 2, at the moment, the auxiliary shaft locking piston 5 stretches out to a designated position, one end of the auxiliary shaft locking piston 5 stretches into a tooth groove of the first gear 2-1 of the auxiliary shaft 2, after the auxiliary shaft 2 is positioned on the base 1, the third gear guiding piston 8 stretches out to the designated position, one end of the third gear guiding piston 8 stretches into the tooth groove of the third gear 2-3 of the auxiliary shaft 2, the press is operated to press the third gear 2-3, and the third gear supporting seat 7 can support the lower end face of the third gear 2-3, namely the third gear 2-3 is contacted with the third gear supporting seat 7, and then downward movement is stopped. The auxiliary shaft 2 is conveniently positioned through a positioning hole 2-5 arranged on the auxiliary shaft 2 and a tooth selecting pin 6 arranged on the supporting block 1-2, in addition, the axial position of the third gear 2-3 mounted on the auxiliary shaft 2 is conveniently controlled through a third gear support 7, and in addition, the third gear 2-3 is conveniently subjected to tooth alignment through a third gear guide piston 8, so that the mounting precision of the third gear 2-3 is improved.

In some embodiments of the present application, the base 1 is provided with a bearing hole 1-1, and a mounting surface supporting seat 3 for supporting the bottom end of the auxiliary shaft 2 is arranged in the bearing hole 1-1. The lower end of the auxiliary shaft 2 is inserted into the mounting surface supporting seat 3, and the lower end surface of the first gear 2-1 is contacted with the upper end surface of the mounting surface supporting seat 3 so as to axially limit the auxiliary shaft 2. Further, the press-fitting auxiliary shaft assembly tooth pairing tool further comprises a locking fork opening 4, an open groove is formed in one side of the mounting surface supporting seat 3, the locking fork opening 4 is used for pressing the bottom end of the auxiliary shaft 2 in the open groove, and convenience in mounting the bottom end of the auxiliary shaft 2 can be improved through the mounting surface supporting seat 3 and the locking fork opening 4. In order to facilitate the movement of the locking fork opening 4, the base 1 is also provided with a guide block 1-3, one end of the locking fork opening 4 far away from the mounting surface supporting seat 3 is provided with a guide rod 4-1, and the guide rod 4-1 is horizontally and slidably connected with the guide block 1-3.

In some embodiments of the present application, the press-fit auxiliary shaft assembly tooth pairing tool further comprises a four-gear guiding piston 10 and a four-gear support 9, wherein the four-gear guiding piston 10 is transversely mounted on the supporting block 1-2, a second step surface for bearing the four-gear support 9 is further arranged on the supporting block 1-2, and the four-gear support 9 is used for supporting the lower end surface of the four-gear 2-4. When the four-gear 2-4 is installed, the four-gear 2-4 is first heated and expanded, when the four-gear 2-4 is sleeved on the auxiliary shaft 2, the tooth grooves of the four-gear 2-4 are required to be aligned with the heads of the pistons of the four-gear 2-4, so that the four-gear guide piston 10 is prevented from being crushed when the four-gear 2-4 is pressed, and when the four-gear 2-4 is contacted with the four-gear support 9, the four-gear 2-4 stops moving downwards, and can be accurately pressed on the auxiliary shaft 2.

In some embodiments of the present application, the third gear support 7 and/or the fourth gear support 9 are/is a fork seat, an open slot is provided on a side of the fork seat facing the auxiliary shaft 2, the shaft body of the auxiliary shaft 2 is located in the open slot, one end of the fork seat far away from the open slot is located on a corresponding step surface, and the corresponding support is placed on the step surface before the third gear 2-3 or the fourth gear 2-4 is placed. The outer side surface of the fork seat is preferably arc-shaped, and the opening groove is preferably a U-shaped groove.

In order to improve stability of the auxiliary shaft 2 when assembling gears, the assembly tooth pairing tool for the auxiliary shaft 2 is pressed and assembled, and further comprises an upper center 11, wherein the upper center 11 is used for tightly propping against the upper end of the auxiliary shaft 2. After the third gear 2-3 and the fourth gear 2-4 are arranged on the auxiliary shaft 2, after the assembly is cooled, the upper center 11 and the locking fork 4 are retracted, the auxiliary shaft locking piston 5, the third gear guide piston 8 and the fourth gear guide piston 10 are decompressed, and finally the assembly is adjusted away from the base 1 by using a lifting appliance.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The above describes in detail a pressure equipment countershaft assembly tooth frock that this application provided. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the methods of the present application and their core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

Claims

1. The utility model provides a pressure equipment countershaft assembly pair tooth frock which characterized in that includes: base (1), countershaft locking piston (5), select tooth round pin (6), third gear guide piston (8) and third gear support (7), base (1) are used for bearing countershaft (2) of vertical placing, still be equipped with supporting shoe (1-2) on base (1), countershaft locking piston (5) select tooth round pin (6) with third gear guide piston (8) transversely install in supporting shoe (1-2), the one end of countershaft locking piston (5) is used for stretching into the tooth inslot of first gear (2-1) of countershaft (2), be equipped with on countershaft (2) with select locating hole (2-5) that tooth round pin (6) correspond, the one end of third gear guide piston (8) is used for stretching into in third gear (2-3) of countershaft (2), be equipped with on supporting shoe (1-2) and be used for bearing the first step face of third gear support (7), third gear support (7) are used for supporting in the tooth groove (2-3) terminal surface under third gear (2).

2. The press-fit auxiliary shaft assembly tooth pairing tool according to claim 1, wherein the base (1) is provided with a bearing hole (1-1), and a mounting surface supporting seat (3) for supporting the bottom end of the auxiliary shaft (2) is arranged in the bearing hole (1-1).

3. The press-fit auxiliary shaft assembly tooth pairing tool according to claim 2, further comprising a locking fork opening (4), wherein an open groove is formed in one side of the mounting surface supporting seat (3), and the locking fork opening (4) is used for pressing the bottom end of the auxiliary shaft (2) into the open groove.

4. A press-fit auxiliary shaft assembly tooth pairing tool according to claim 3, wherein the base (1) is further provided with a guide block (1-3), one end, far away from the mounting surface supporting seat (3), of the locking fork opening (4) is provided with a guide rod (4-1), and the guide rod (4-1) is horizontally and slidably connected with the guide block (1-3).

5. The press-fit auxiliary shaft assembly tooth pairing tool according to claim 1, further comprising a four-gear guide piston (10) and a four-gear support (9), wherein the four-gear guide piston (10) is transversely mounted on the supporting block (1-2), a second step surface for bearing the four-gear support (9) is further arranged on the supporting block (1-2), and the four-gear support (9) is used for being supported on the lower end face of the four-gear (2-4).

6. The press-fit auxiliary shaft assembly tooth pairing tool according to claim 5, wherein the third gear support (7) and/or the fourth gear support (9) are/is a fork seat, an open slot is formed in one side, facing the auxiliary shaft (2), of the fork seat, and a shaft body of the auxiliary shaft (2) is located in the open slot.

7. The press-fit auxiliary shaft assembly tooth pairing tool according to claim 6, wherein the outer side surface of the fork seat is arc-shaped, and the open slot is a U-shaped slot.

8. A press-fit layshaft assembly tooth tooling as claimed in claim 3, further comprising an upper tip (11), said upper tip (11) being adapted to be pressed against the upper end of the layshaft (2).