CN-224209847-U - Differential mechanism connecting bolt tightening tool

Abstract

The utility model provides a tightening tool for a connecting bolt of a differential mechanism. The tightening sleeve is sleeved on the axle tube at the axle center of the differential mechanism and is clamped in the circumferential direction. The rotating shaft arranged at the rotating end of the counterforce block penetrates through the shaft hole at the axial center of the tightening sleeve and stretches into the axial center hole of the differential mechanism. The tightening end of the reaction block is connected with a tightening wrench for tightening bolts in the circumferential direction of the differential. Compared with the tightening tool in the prior art, the tightening tool omits an external counter force arm and additional equipment, reduces the fixation in the tightening process of the differential mechanism, and improves the production efficiency. And this tightening tool simple structure, convenient operation, and can control the moment of torsion size and carry out the retrospective of moment of torsion data. In addition, the tightening tool can also realize the installation and tightening of differential gear products of different models by replacing the counterforce blocks, and the production efficiency is greatly improved.

Inventors

• LIU JIANG
• TANG XIAOBING
• WANG MINGMING

Assignees

• 吉客传动科技(苏州)有限公司

Dates

Publication Date

20260508

Application Date

20250214

Claims (7)

1. 1. A differential connecting bolt tightening tool is characterized by comprising a tightening wrench (1), a tightening sleeve (2) and a counterforce block (3), wherein, The tightening sleeve (2) is sleeved on a shaft tube at the axle center of the differential mechanism (4) and is clamped in the circumferential direction; A rotating shaft (31) arranged at the rotating end of the counterforce block (3) passes through the shaft hole at the shaft center of the tightening sleeve (2) and stretches into the shaft center hole of the differential mechanism (4); The tightening end of the reaction block (3) is connected with the tightening wrench (1) for tightening the bolts in the circumferential direction of the differential mechanism (4).
2. 2. The differential connecting bolt tightening tool according to claim 1, wherein the extending direction of the reaction block (3) is perpendicular to the axis of the differential (4).
3. 3. Differential connecting bolt tightening tool according to claim 2, characterized in that the turning end of the counter-force block (3) is provided with at least one turning hole for mounting the turning shaft (31).
4. 4. A differential connecting bolt tightening tool according to claim 2 or 3, characterized in that the tightening end of the reaction block (3) has a wrench hole in which the tightening head (11) of the tightening wrench (1) is clamped; the tightening head (11) has a tightening sleeve (12) thereon for rotationally tightening a bolt on the differential (4).
5. 5. The differential connecting bolt tightening tool according to claim 4, wherein a spline structure (32) is provided between the wrench hole inner wall and the tightening head (11) for circumferential position limitation.
6. 6. The differential connecting bolt tightening tool according to claim 1, characterized in that the tightening wrench (1) has a control module for setting a tightening torque and controlling the work; a communication module electrically connected with the control module is arranged inside the tightening wrench (1); the tightening wrench (1) is also provided with a data interface for transmitting data.
7. 7. The differential connecting bolt tightening tool according to claim 6, wherein the tightening wrench (1) is provided with a power module for supplying power.

Description

Differential mechanism connecting bolt tightening tool Technical Field The utility model relates to the technical field of differentials, in particular to a differential connecting bolt tightening tool. Background With the annual increase in sales of automobiles, the demands for parts of the production line of automobiles have increased greatly, which in turn has led to an extended lead time, as has the demands for differentials. In addition, the installation process of the novel differential mechanism obtained through technical improvement is different from the original speed reduction axle differential mechanism tightening process, the old tightening mechanical arm cannot be used for tightening in the original area, and a new station is required to be added to meet the requirement of a new production beat. According to the new main pre-installation post layout and technological process requirements, the differential is screwed up with 24 bolts in total, the bolts are uniformly distributed on two circumferences of two sides of the differential, the bolts are required to be independently completed at one station, and an electric screwing wrench is used for completing the torque control and the torque information tracing of the screwing process. The original bolt tightening tool is low in efficiency and cannot meet the installation requirement of an existing differential mechanism. Therefore, the tightening tool with the advantages of quick installation, convenient torque control, wide applicability, convenient information collection and simple structure is needed in the art. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provides a differential mechanism connecting bolt tightening tool, so as to solve the problems of small application range, low tightening efficiency and complex structure in the installation process in the prior art. The utility model provides a tightening tool for a connecting bolt of a differential mechanism, which comprises a tightening wrench, a tightening sleeve and a counter-force block, wherein the tightening sleeve is sleeved on a shaft tube at the axis of the differential mechanism and is clamped in the circumferential direction, a rotating shaft arranged at the rotating end of the counter-force block penetrates through a shaft hole at the axis of the tightening sleeve and stretches into an axis hole of the differential mechanism, and the tightening end of the counter-force block is connected with the tightening wrench for tightening a bolt in the circumferential direction of the differential mechanism. Further, the extending direction of the reaction block is perpendicular to the axis of the differential. Further, the rotating end of the reaction block is provided with at least one rotating hole for mounting the rotating shaft. Further, the tightening end of the reaction block is provided with a spanner hole, a tightening head of the tightening spanner is clamped in the spanner hole, and the tightening head is provided with a tightening sleeve for rotationally tightening a bolt on the differential. Further, a spline structure is arranged between the inner wall of the spanner hole and the tightening head and used for limiting the circumferential position. In the embodiment of the utility model, the tightening wrench is provided with a control module for setting the tightening torque and controlling the work, a communication module electrically connected with the control module is arranged in the tightening wrench, and a data interface for transmitting data is also arranged on the tightening wrench. Further, the tightening wrench is provided with a power module for supplying power. According to the embodiment, the tightening tool for the connecting bolt of the differential has the advantages that compared with the tightening tool in the prior art, the tightening tool omits an external counter force arm and additional equipment, reduces fixation in the tightening process of the differential, and improves production efficiency. And this tightening tool simple structure, convenient operation, and can control the moment of torsion size and carry out the retrospective of moment of torsion data. The counter-force block is connected with the tightening wrench through the spline, the fixing is reliable and convenient to detach, the counter-force block is connected with the differential mechanism through the clearance fit of the tightening sleeve, the differential mechanism is convenient to operate in the tightening process, and the movement caused by tightening is avoided, and the support of an external counter-force arm is not needed. In addition, the tightening tool can also realize the installation and tightening of differential gear products of different models by replacing the counterforce blocks, and the production efficiency is greatly improved. It is to be understood that both the foregoing general description and the following detail