Auxiliary installation tool for anti-roll torsion bar of subway passenger car
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南京地铁运营有限责任公司
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-14
Smart Images

Figure CN224488900U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of auxiliary tooling technology, specifically relating to an auxiliary installation tooling for a subway passenger car anti-roll torsion bar. Background Technology
[0002] Anti-roll torsion bars are installed on subway bogies to limit the rollover of the car. They are supported by bearing housings located under the bogies and fixed to the car by connecting rods. If the car rolls over, the anti-roll torsion bar will twist, but at the same time, this bar counteracts the rollover motion, thus mitigating the rollover effect.
[0003] During all maintenance and overhaul processes of subway cars, the anti-roll torsion bar device must be inspected and then reinstalled. The installation process of the anti-roll torsion bar requires the torsion arm to be horizontal. However, in actual installation, due to the lack of tooling to ensure this, it can only be observed visually, which can easily cause the torsion arm to tilt. As a result, when the car is lowered at four points, the connecting rod joint bearing cannot fit against the torsion arm in a free state, and the connecting rod joint bearing is subjected to abnormal force, which poses a great safety hazard.
[0004] The applicant discovered that the lower plane of the side beam of the frame is a horizontal plane, and the mounting surface of the anti-roll torsion bar is also a machined horizontal plane. It is only necessary to embed a tooling block of the appropriate size in the space between the two to ensure that they fit closely together, so that the horizontality of the torsion bar can be guaranteed after installation. Utility Model Content
[0005] Purpose of the utility model: To provide an auxiliary installation fixture for anti-roll torsion bars in subway cars, which solves the above-mentioned problems existing in the prior art.
[0006] Technical Solution: A subway passenger car anti-roll torsion bar auxiliary installation fixture includes an anti-roll torsion bar and a frame. The anti-roll torsion bar is installed on the frame via a mounting base. The fixture body includes a fixture body with at least two sets of mounting holes along its height direction. The mounting holes are arranged in a linear array through the fixture body. A level is installed on the side of the fixture body, and the level and the mounting holes are located on adjacent sides. Mounting components are installed at both ends of the fixture body. The mounting components are used to insert into the mounting holes to connect the fixture body to the anti-roll torsion bar.
[0007] Preferably, the mounting assembly includes a mounting ring, which is mounted on one end of the tooling body. A hanging rope is installed inside the mounting ring, and a connector is installed at the end of the hanging rope away from the mounting ring. The connector is used to connect the tooling body and the anti-roll torsion bar.
[0008] Preferably, the height of the tooling body is 32mm, and the height of the tooling body is the same as the clearance distance between the frame and the anti-roll torsion bar.
[0009] Preferably, the tooling body is made of stainless steel.
[0010] Preferably, the tooling body is coated with a bright paint layer, which allows for quick identification of the tooling body's position.
[0011] Preferably, a lifting handle is installed on the end face of the tooling body, and the lifting handle is covered with a silicone sleeve.
[0012] Preferably, the mounting hole is an M16 threaded hole.
[0013] Preferably, the connector uses M16*80 bolts and nuts.
[0014] Beneficial effects: This utility model relates to an auxiliary installation fixture for a subway passenger car anti-roll torsion bar. The installation fixture body is installed on the anti-roll torsion bar through the connector in the installation assembly. The installation fixture is leveled on the anti-roll torsion bar by the level on the side of the installation fixture. After the installation fixture is installed, it is abutted against the bottom of the frame. After the installation fixture is tightly fitted to the bottom of the frame, the anti-roll torsion bar is firmly installed on the frame by the mounting seat, which can ensure that the anti-roll torsion bar and the frame are installed parallel to each other.
[0015] Secondly, when the anti-roll torsion bar is installed on the frame, with the help of installation tools, two operators can quickly install the anti-roll torsion bar on the frame, which not only improves work efficiency and work quality, but also reduces human error in installation. Attached Figure Description
[0016] Figure 1 This is a diagram showing the installation state of the anti-roll torsion bar of this utility model;
[0017] Figure 2 This is the main view of the anti-roll torsion bar of this utility model.
[0018] Figure 3 This is a schematic diagram of the tooling of this utility model.
[0019] Figures 1 to 3 The reference numerals in the attached diagram are as follows: 1. Anti-roll torsion bar; 2. Frame; 3. Tooling body; 4. Mounting hole; 5. Level; 6. Mounting assembly; 7. Lifting handle;
[0020] 61. Install hanging rings; 62. Hanging rope; 63. Connecting parts. Detailed Implementation
[0021] like Figures 1 to 3As shown, this utility model provides a technical solution: an auxiliary installation fixture for a subway passenger car anti-roll torsion bar, including a fixture body made of stainless steel. The fixture body is coated with a bright paint layer, which allows for quick identification of the fixture body's position. The fixture body is mounted on the bottom surface of a frame via a mounting base. Figure 3 As shown, the tooling body has at least two sets of mounting holes along its height direction. These mounting holes are M16 threaded holes and are arranged in a linear array through the tooling body. A level is mounted on the side of the tooling body, with the level and the mounting holes located on adjacent sides. Mounting assemblies are mounted at both ends of the tooling body. Each mounting assembly includes a mounting ring, which is installed on one end of the tooling body. A hanging rope is installed inside the mounting ring, and a connector is installed at the end of the hanging rope away from the mounting ring. The connector uses M16*80 bolts and nuts and is used to connect the tooling body and the anti-roll torsion bar. The height of the tooling body is 32mm. The clearance between the anti-roll torsion bar and the frame is the same, ensuring that the fixture body is located within the clearance between the anti-roll torsion bar and the frame when the anti-roll torsion bar is installed on the frame. This ensures that the anti-roll torsion bar and the frame are installed parallel to each other. The fixture is leveled on the anti-roll torsion bar using a level on the side of the fixture. After the fixture is installed, it is placed against the bottom of the frame. Once the fixture is tightly fitted against the bottom of the frame, the anti-roll torsion bar is securely installed on the frame using the mounting base. This ensures that the anti-roll torsion bar and the frame are installed parallel to each other. Furthermore, when the anti-roll torsion bar is installed on the frame, two operators can quickly install the anti-roll torsion bar using the fixture, which not only improves work efficiency and quality but also reduces human error in installation.
[0022] In a further embodiment, a lifting handle is installed on the end face of the tooling body, and the lifting handle is covered with a silicone sleeve. After the anti-roll torsion bar and the frame are installed, the connecting parts are disassembled to separate the installation tooling body from the anti-roll torsion bar. Then, by pulling the lifting handle, the installation tooling body is disengaged from the gap between the anti-roll torsion bar and the frame.
[0023] Through the above technical solution, the present invention can achieve the following working process:
[0024] First, install the anti-roll torsion bar on the bottom surface of the frame using the mounting base. At this time, the anti-roll torsion bar is in a loose and rotatable state, that is, the mounting base is not fully tightened to the frame. Install the fixture body onto the anti-roll torsion bar using the mounting assembly. After completing the installation of the fixture body, rotate the anti-roll torsion bar to make the fixture body fit tightly against the frame. Observe the fixture body again through the level on the fixture body to confirm that the fixture body is level. After the anti-roll torsion bar and the frame are in a parallel state with the assistance of the fixture body, tighten the mounting base onto the frame, so that the anti-roll torsion bar is installed parallel to the frame.
[0025] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.
Claims
1. An auxiliary installation fixture for an anti-roll torsion bar in a subway car, comprising an anti-roll torsion bar and a frame, wherein the anti-roll torsion bar is mounted on the frame via a mounting base, characterized in that, The fixture includes a tooling body, which has at least two sets of mounting holes along its height direction. The mounting holes are arranged in a linear array and pass through the tooling body. A level is mounted on the side of the tooling body, and the level and the mounting holes are located on two adjacent sides. Mounting components are mounted at both ends of the tooling body. The mounting components are used to insert into the mounting holes to connect the tooling body to the anti-roll torsion bar.
2. The auxiliary installation fixture for a subway passenger car anti-roll torsion bar according to claim 1, characterized in that, The mounting assembly includes a mounting ring, which is mounted on one end of the tooling body. A hanging rope is installed inside the mounting ring, and a connector is installed at the end of the hanging rope away from the mounting ring. The connector is used to connect the tooling body and the anti-roll torsion bar.
3. The auxiliary installation fixture for a subway passenger car anti-roll torsion bar according to claim 1, characterized in that, The height of the tooling body is 32mm, and the height of the tooling body is the same as the clearance distance between the frame and the anti-roll torsion bar.
4. The auxiliary installation fixture for a subway passenger car anti-roll torsion bar according to claim 1, characterized in that, The tooling body is made of stainless steel.
5. The auxiliary installation fixture for a subway passenger car anti-roll torsion bar according to claim 1, characterized in that, The tooling body is coated with a bright paint layer, which allows for quick identification of the tooling body's position.
6. The auxiliary installation fixture for a subway passenger car anti-roll torsion bar according to claim 1, characterized in that, The tooling body is equipped with a lifting handle on its end face, and the lifting handle is covered with a silicone sleeve.
7. The auxiliary installation fixture for a subway passenger car anti-roll torsion bar according to claim 1, characterized in that, The mounting hole is an M16 threaded hole.
8. The auxiliary installation fixture for a subway passenger car anti-roll torsion bar according to claim 2, characterized in that, The connector uses M16*80 bolts and nuts.