CN216421615U - Tool for installing flange locking nut of main speed reducer of heavy truck rear axle - Google Patents
Tool for installing flange locking nut of main speed reducer of heavy truck rear axle Download PDFInfo
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- CN216421615U CN216421615U CN202122813973.5U CN202122813973U CN216421615U CN 216421615 U CN216421615 U CN 216421615U CN 202122813973 U CN202122813973 U CN 202122813973U CN 216421615 U CN216421615 U CN 216421615U
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Abstract
The utility model provides an instrument that is used for main reducer flange lock nut installation of heavily blocking rear axle, its characterized in that: the tool is a rectangular plate-shaped structure, a through hole is formed in the top surface of the middle of the tool, and the diameter of the through hole is larger than the outer diameter of the tightening head; the top surfaces of the two end parts of the tool are respectively provided with a pin hole, the diameter of each pin hole is matched with that of the positioning pin, and the positions of 2 pin holes respectively correspond to the positions of 2 positioning pins; the bottom surface of the tool is provided with 2 limiting pins, the axial direction of each limiting pin is vertical to the bottom surface of the tool, and the 2 limiting pins are uniformly distributed along the circumferential direction of the through hole; when the tool is placed on the upper side face of the flange plate, 2 limiting pins can be respectively inserted into the two grooves. The tool can be used for conveniently carrying out circumferential limiting on the flange of the main speed reducer, and the locking nut is convenient to screw and high in efficiency.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field, especially an instrument that is used for the installation of main reducer flange lock nut of heavily blocking rear axle.
Background
In the assembly process of a main speed reducer of a rear axle of a heavy truck, a flange is required to be sleeved on a driving gear shaft, torque is transmitted by meshing a spline hole of the flange with a spline shaft on the driving gear shaft, and then a locking nut is arranged at the upper end of the driving gear shaft to axially position and fix the flange. However, in the actual installation process, when the tightening machine is used for tightening the lock nut, the driving gear shaft is not circumferentially fixed and can rotate along with the lock nut, so that the lock nut cannot be tightened.
SUMMERY OF THE UTILITY MODEL
To the problem in the background art, the utility model provides an instrument that is used for the installation of the main reducer flange lock nut of heavily blocking the rear axle to the lock nut who installs the main reducer flange among the solution prior art operates inconvenient, wastes time and energy, the problem of inefficiency.
The utility model aims at realizing through the technical scheme, it is including:
a tool for final drive flange lock nut installation of a heavy truck rear axle, the tool for circumferentially limiting the final drive flange when the lock nut is tightened with a tightening machine; the two sides of a tightening head of the tightening machine are respectively provided with a positioning pin, the circumferential surface of the flange plate of the flange of the main speed reducer is provided with two grooves, the upper side surface and the lower side surface of the flange plate are communicated through the grooves, the two grooves are uniformly arranged along the circumferential direction of the flange plate, and the novel point is that: the tool is a rectangular plate-shaped structure, a through hole is formed in the top surface of the middle of the tool, and the diameter of the through hole is larger than the outer diameter of the tightening head; the top surfaces of the two end parts of the tool are respectively provided with a pin hole, the diameter of each pin hole is matched with that of the positioning pin, and the positions of 2 pin holes respectively correspond to the positions of 2 positioning pins; the bottom surface of the tool is provided with 2 limiting pins, the axial direction of each limiting pin is vertical to the bottom surface of the tool, and the 2 limiting pins are uniformly distributed along the circumferential direction of the through hole; when the tool is placed on the upper side face of the flange plate, 2 limiting pins can be respectively inserted into the two grooves.
Preferably, a fastening pin hole is formed in the inner wall of the pin hole, and a fastening pin used for axially limiting the positioning pin is arranged in the fastening pin hole.
Preferably, the two ends of the tool are respectively provided with a handle.
Due to the adoption of the technical scheme, the utility model discloses following advantage has: the tool can be relatively fixed with the tightening machine through the assembly of the pin hole and the positioning pin, then two limiting pins are inserted into two grooves on the flange plate to circumferentially limit the flange of the speed reducer, the flange of the speed reducer is connected with the driving gear shaft through the spline, so that the circumferential freedom degree of the driving gear shaft is limited, at the moment, when the tightening machine is used for tightening the locking nut at the end part of the driving gear, the driving gear shaft cannot rotate along with the locking nut, and the locking nut can be conveniently assembled according to the specified tightening torque through the tightening head of the tightening machine. The whole tightening process does not need manual intervention, the operation is convenient, the efficiency is high, and the tightening torque is easy to guarantee.
Drawings
The drawings of the present invention are described below.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of fig. 1.
In the figure: 1. A tool; 2. a tightening machine; 3. locking the nut; 4. a main reducer flange; 5. a driving gear shaft; 11. a through hole; 12. a pin hole; 13. a spacing pin; 14. a fastening pin; 15. a handle; 21. tightening a head; 22. positioning pins; 41. a flange plate; 42. and (4) a groove.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The tool for installing the flange lock nut of the main reducer of the rear axle of the heavy truck as shown in the attached drawings 1 and 2 is used for circumferentially limiting the flange 4 of the main reducer when the lock nut 3 is screwed by a screwing machine 2; two sides of a tightening head 21 of the tightening machine 2 are respectively provided with a positioning pin 22, the circumferential surface of a flange plate 41 of a flange 4 of the main speed reducer is provided with two grooves 42, the upper side surface and the lower side surface of the flange plate 41 are communicated through the grooves 42, the two grooves 42 are uniformly arranged along the circumferential direction of the flange plate 41, a driving gear shaft 5 is sleeved in a hole of the flange 4 of the main speed reducer, the driving gear shaft 5 is meshed with the flange 4 of the main speed reducer through splines, the upper end part of the driving gear shaft 5 is provided with a threaded section, and a locking nut 3 needs to be sleeved on the threaded section to axially limit the flange 4 of the main speed reducer; the tool 1 is a rectangular plate-shaped structure, a through hole 11 is formed in the top surface of the middle of the tool 1, and the diameter of the through hole 11 is larger than the outer diameter of the tightening head 21; the top surfaces of two end parts of the tool 1 are respectively provided with a pin hole 12, the diameter of the pin hole 12 is matched with that of the positioning pin 22, and the positions of 2 pin holes 12 correspond to the positions of 2 positioning pins 22; the bottom surface of the tool 1 is provided with 2 limiting pins 13, the axial direction of each limiting pin 13 is vertical to the bottom surface of the tool 1, and the 2 limiting pins 13 are uniformly distributed along the circumferential direction of the through hole 11; when the tool 1 is placed on the upper side of the flange 41, 2 stop pins 13 can be inserted into the two grooves 42.
In order to prevent the tool from axial loosening when the tightening machine works, a fastening pin hole is formed in the inner wall of the pin hole 12, and a fastening pin 14 for axially limiting the positioning pin is arranged in the fastening pin hole.
To facilitate access and mounting of the tool, the tool 1 is provided with a handle 15 at each end.
When the tool is used, the tool is firstly placed on the top surface of the flange of the main speed reducer, the two limiting pins are respectively inserted into the two grooves, then the two positioning pins on the tightening machine are respectively inserted into the two pin holes, the tightening pins are tightened, then the tightening head of the tightening machine is sleeved on the locking nut to be tightened until the tightening torque reaches the design requirement, then the tightening pins are loosened, the tightening machine is lifted, the tool is taken down from the flange of the main speed reducer, and the installation of the locking nut is completed.
Claims (3)
1. Tool for final drive flange lock nut mounting of heavy truck rear axles, the tool (1) being intended to circumferentially limit the final drive flange (4) when the lock nut (3) is tightened with a tightening machine (2); two sides of a tightening head (21) of the tightening machine (2) are respectively provided with a positioning pin (22), the circumferential surface of a flange plate (41) of the flange (4) of the main speed reducer is provided with two grooves (42), the upper side surface and the lower side surface of the flange plate (41) are communicated through the grooves (42), and the two grooves (42) are uniformly arranged along the circumferential direction of the flange plate (41), and the tightening machine is characterized in that: the tool (1) is a rectangular plate-shaped structural body, a through hole (11) is formed in the top surface of the middle of the tool (1), and the diameter of the through hole (11) is larger than the outer diameter of the tightening head (21); the top surfaces of two end parts of the tool (1) are respectively provided with a pin hole (12), the diameter of each pin hole (12) is matched with the diameter of each positioning pin (22), and the positions of 2 pin holes (12) respectively correspond to the positions of 2 positioning pins (22); the bottom surface of the tool (1) is provided with 2 limiting pins (13), the axial direction of each limiting pin (13) is vertical to the bottom surface of the tool (1), and the 2 limiting pins (13) are uniformly distributed along the circumferential direction of the through hole (11); when the tool (1) is placed on the upper side surface of the flange plate (41), 2 limiting pins (13) can be respectively inserted into the two grooves (42).
2. The tool for final drive flange lock nut installation for heavy truck rear axles of claim 1, wherein: and a fastening pin hole is formed in the inner wall of the pin hole (12), and a fastening pin (14) for axially limiting the positioning pin is arranged in the fastening pin hole.
3. The tool for final drive flange lock nut installation for heavy truck rear axles of claim 1, wherein: two ends of the tool (1) are respectively provided with a handle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122813973.5U CN216421615U (en) | 2021-11-17 | 2021-11-17 | Tool for installing flange locking nut of main speed reducer of heavy truck rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122813973.5U CN216421615U (en) | 2021-11-17 | 2021-11-17 | Tool for installing flange locking nut of main speed reducer of heavy truck rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216421615U true CN216421615U (en) | 2022-05-03 |
Family
ID=81336985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122813973.5U Active CN216421615U (en) | 2021-11-17 | 2021-11-17 | Tool for installing flange locking nut of main speed reducer of heavy truck rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216421615U (en) |
-
2021
- 2021-11-17 CN CN202122813973.5U patent/CN216421615U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400900 No.1, Nanhuan Avenue, Shuangqiao economic and Technological Development Zone, Dazu District, Chongqing Patentee after: SAIC Hongyan Axle (Chongqing) Co.,Ltd. Address before: 400900 No.1, Nanhuan Avenue, Shuangqiao economic and Technological Development Zone, Dazu District, Chongqing Patentee before: SAIC-IVECO HONGYAN COMMERCIAL VEHICLE CO.,LTD. |