Driving shaft and brake connection tightening equipment
By designing a device with a suspended tightening gun and an arc-shaped handle, the problem of high labor intensity at the tightening station connecting the drive shaft and the brake was solved, achieving convenient operation and reduced back torque.
Patent Information
- Application Number
- CN202520442663.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In existing automobile assembly lines, the tightening station connecting the drive shaft and the brake is labor-intensive, and workers have difficulty resisting the reverse torque by holding the tightening gun for a long time.
A device comprising a suspended trolley assembly, a fall arrestor, a spring balancer, and a tightening gun was designed. By suspending the tightening gun and equipping it with symmetrically arranged arc handles, the counter-torque force on the operator is reduced.
It reduces the labor intensity of workers, decreases the need to resist counter-torque, and improves the ease of operation.
Smart Images

Figure CN223863276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of assembly equipment, specifically to a device for tightening the connection between a drive shaft and a brake. Background Technology
[0002] In the automotive assembly line, there is a tightening station for connecting and tightening the drive shaft and brake. This station is used to connect and tighten the drive shaft and brake with bolts. The drive shaft and brake use end face tooth meshing, and only one bolt needs to be tightened. The existing assembly process is to align the end face of the brake with the drive shaft and then have the worker use a tightening gun to tighten the bolt. However, for continuous assembly lines, it is labor-intensive for workers to hold the tightening gun for a long time. In addition, the tightening gun has a large counter-torque when tightening, and the worker's physical strength is required to hold the tightening gun tightly to resist the counter-torque. Summary of the Invention
[0003] In view of the shortcomings of the prior art, the present invention provides a drive shaft and brake connection tightening device, which has a simple structure, is easy to operate and reduces the labor intensity of workers.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A drive shaft and brake connection tightening device, characterized in that it includes a suspension trolley assembly, a fall arrestor, a spring balancer, and a tightening gun. The upper ends of the fall arrestor and the spring balancer are suspended and connected to the suspension trolley assembly. The lower ends of the fall arrestor and the spring balancer are connected to a suspension connecting rod. A vertical connecting rod is connected to the suspension connecting rod. The lower end of the vertical connecting rod is connected to a connecting seat. The connecting seat has a transversely penetrating connecting hole. A sleeve is rotatably connected to the connecting hole. The tightening gun is disposed in the sleeve. A connecting plate is provided on the sleeve. The connecting plate has an internal spline hole that mates with the spline shaft on the tightening gun. A handle connector is also connected to the sleeve. A handle is connected to the handle connector.
[0006] Furthermore, a tightening sleeve is connected to the front end of the tightening gun.
[0007] Furthermore, both ends of the suspension link are provided with lifting rings, and the lower ends of the fall arrester and the spring balancer are respectively provided with hooks that are hung on the lifting rings.
[0008] Furthermore, the handle is a symmetrically arranged arc handle.
[0009] The beneficial effects of this utility model include: the tightening gun is suspended and can be moved horizontally, making it easy to operate; and it is equipped with an arc-shaped handle that is easy to grip, which reduces the counter-torque force on the worker and reduces the worker's labor intensity. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 This utility model relates to a tightening gun connection structure. Detailed Implementation
[0012] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0013] One such Figure 1-2 The drive shaft and brake connection tightening device shown includes a suspension trolley assembly 1, a fall arrestor 2, a spring balancer 4, and a tightening gun 3. The upper ends of the fall arrestor 2 and the spring balancer 4 are both suspended and connected to the suspension trolley assembly 1. The upper end of the suspension trolley assembly 1 has rollers for limiting its position in the suspension rail. The fall arrestor 2 and the spring balancer 4 are arranged in parallel and connected to a suspension link 5 at their lower ends. Both ends of the suspension link 5 are provided with lifting rings 13, and the lower ends of the fall arrestor 2 and the spring balancer 4 are respectively provided with hooks that hang on the lifting rings 13. A vertical link 6 is connected to the suspension link 5, and the lower end of the vertical link 6 is connected to a connecting seat 7. The connecting seat 7 has a horizontally through connecting hole, and a sleeve 8 is rotatably connected to the connecting hole through a bearing. The tightening gun 3 is housed within the sleeve 8, which has a connecting plate 9. The connecting plate 9 has an internal spline hole that mates with the splined shaft of the tightening gun 3. The tightening gun 3 has an axially locking nut, allowing it to rotate freely with the sleeve 8. A handle connector 10 is also connected to the sleeve 8, and a handle 11 is attached to the handle connector 10. The handle 11 is a symmetrically arranged arc-shaped handle, which makes it easier for the operator to grip during tightening, thus counteracting the reverse torque.
[0014] The front end of the tightening gun 3 is connected to a tightening sleeve 12, which is used to fit onto the connecting bolts of the drive shaft and the brake.
[0015] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A tightening device for connecting a drive shaft and a brake, characterized in that: The assembly includes a hanging trolley assembly (1), a fall arrestor (2), a spring balancer (4), and a tightening gun (3). The upper ends of the fall arrestor (2) and the spring balancer (4) are both suspended and connected to the hanging trolley assembly (1). The lower ends of the fall arrestor (2) and the spring balancer (4) are connected to a hanging connecting rod (5). A vertical connecting rod (6) is connected to the hanging connecting rod (5). The lower end of the vertical connecting rod (6) is connected to a connecting seat (7). The connecting seat (7) has a horizontally penetrating connecting hole. A sleeve (8) is rotatably connected inside the connecting hole. The tightening gun (3) is set inside the sleeve (8). A connecting plate (9) is set on the sleeve (8). The connecting plate (9) has an internal spline hole that mates with the spline shaft on the tightening gun (3). A handle connector (10) is also connected to the sleeve (8). A handle (11) is connected to the handle connector (10).
2. The drive shaft and brake connection tightening device according to claim 1, characterized in that: The front end of the tightening gun (3) is connected to a tightening sleeve (12).
3. The drive shaft and brake connection tightening device according to claim 1, characterized in that: Both ends of the suspension link (5) are provided with a lifting ring (13), and the lower ends of the fall arrestor (2) and the spring balancer (4) are respectively provided with hooks hanging on the lifting ring (13).
4. The drive shaft and brake connection tightening device according to claim 1, characterized in that: The handle (11) is a symmetrically arranged arc handle.