Brake piston dismounting tool
By designing a brake piston disassembly fixture that connects the tooling block and the lead screw, the problem of the brake piston being difficult to remove during the disassembly of the hydraulic motor was solved, achieving a simple and collision-free disassembly effect, improving disassembly efficiency and reducing work-related damage.
Patent Information
- Application Number
- CN202520282914.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-21
AI Technical Summary
During the maintenance and disassembly of hydraulic motors, existing tooling makes it difficult to accurately, without bumps, and conveniently remove the brake piston, resulting in low disassembly efficiency and potential work-related damage.
A brake piston disassembly fixture was designed, including a fixture block and a lead screw. The fixture block is connected to the housing by screws, and the lead screw is connected to the brake piston. The rotational motion of the lead screw is converted into the linear motion of the brake piston to achieve disassembly.
This technology enables easy disassembly of the brake piston, avoids bumps and knocks, improves disassembly efficiency, and reduces work-related damage.
Smart Images

Figure CN223876945U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering machinery technical field, concretely is a kind of brake piston dismounting tool. BACKGROUND
[0002] Brake piston is a part in brake device assembly in hydraulic motor, after the completion of end cover and shell connection and screw is hit on moment of force, compresses end cover and compresses spring installed above brake piston, while brake piston is also oppressed downlink, so that force is conducted to brake pad below, so that motor can stop rotating, realize parking, brake piston is as the part of brake device assembly, force transmission, the function is very important.
[0003] In the maintenance and disassembly process of hydraulic motor, hydraulic motor itself is a very precise part combination, the cooperation tolerance between parts is relatively small, which leads to the need for various tooling to accurately, bump-free and conveniently remove the parts during disassembly, therefore, various special disassembly tooling becomes necessary items to improve work efficiency and reduce labor loss. SUMMARY
[0004] The utility model solves the technical problem in the prior art, and provides a brake piston dismounting tool which is simple to use and has good effect.
[0005] The utility model is realized by the following technical scheme: a brake piston dismounting tool, which comprises a tool block, one side of the tool block is connected to a disassembled part shell through a screw, the other side of the tool block is provided with a lead screw, a connecting lead screw thread is arranged on the tool block, and the lower end of the lead screw is connected to a brake piston.
[0006] Further, the thickness of the side of the tool block provided with the screw is greater than the thickness of the side of the tool block provided with the lead screw.
[0007] A light hole connected to the screw is arranged on the tool block, and the screw is connected to the shell through the light hole.
[0008] The light hole is a non-closed hole, and one side of the light hole is provided with an opening.
[0009] The lower end of the lead screw is provided with a row of rectangular grooves, and the upper end of the brake piston is provided with a right-angle dovetail groove used in cooperation with the rectangular grooves.
[0010] The brake piston dismounting tool of the utility model is fixedly connected to the shell on one side, and the lead screw on the other side cooperates with the brake piston through the groove at the lower end, so that the rotary motion of the lead screw is converted into the linear motion of the brake piston to dismount the brake piston. BRIEF DESCRIPTION OF DRAWINGS
[0011] The accompanying drawings, which are part of the present application, serve to provide a further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve to explain the present application, but do not constitute improper limitations on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained from these drawings by those of ordinary skill in the art without creative labor.
[0012] In the drawings:
[0013] Figure 1 is a schematic diagram of the overall structure of the present application;
[0014] Figure 2 is a schematic diagram of the connection between the lower end of the lead screw and the brake piston of the present application.
[0015] In the drawings: 1, tool block, 2, screw, 3, lead screw, 4, light hole, 5, brake piston.
[0016] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.
[0018] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0019] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0020] AsFigures 1 to 2 The invention discloses a brake piston disassembly fixture, comprising a fixture block 1. One side of the fixture block 1 is connected to the housing of the part to be disassembled by a screw 2. The other side of the fixture block 1 is provided with a lead screw 3, and the fixture block 1 has a threaded connection to the lead screw 3. The lower end of the lead screw 3 is connected to the brake piston 5. This invention provides a brake piston disassembly fixture comprising a fixture block, screws, and a lead screw. The screws and lead screw are respectively located on both sides of the fixture block. The fixture block is fixed to the housing of the part to be disassembled by the screws. The other side has a threaded hole through which the lead screw passes and connects to the brake piston. When the lead screw rotates within the threaded hole, its height changes, and the brake piston connected to the lead screw is pulled up with the movement of the lead screw, thereby removing the brake piston. This design is not only simple in structure but also convenient to install and use.
[0021] like Figure 1 The invention discloses a brake piston disassembly fixture, wherein the thickness of the fixture block 1 on the side with the screw 2 is greater than the thickness of the side with the lead screw 3. In this brake piston disassembly fixture, the upper surface of the fixture block is stepped, with a height difference. The lead screw is installed on the side with the lower height to connect to the brake piston, and the screw is installed on the side with the higher height to fix it to the housing. This provides sufficient height for the movement of the lead screw and solves the problem of the height difference between the housing and the brake piston.
[0022] like Figure 1 The diagram illustrates a brake piston disassembly fixture. The fixture block 1 has a through-hole 4 for connecting to a screw 2. The screw 2 passes through the through-hole 4 and connects to the housing. The through-hole 4 is a non-closed hole with an opening on one side. This brake piston disassembly fixture, by connecting to the screw through the through-hole, ensures that the position of the disassembly fixture remains unchanged when the screw is connected to the housing, allowing the lead screw and brake piston to maintain accurate alignment. Furthermore, the open design on one side of the through-hole accommodates screws of different sizes, improving the adaptability of the disassembly fixture.
[0023] like Figure 1 The invention relates to a brake piston disassembly fixture. The lower end of the lead screw 3 has a rectangular groove, and the upper end of the brake piston 5 has a right-angled dovetail groove that mates with the rectangular groove. In this fixture, the lead screw is connected via a mating groove, and the upper end of the brake piston has a right-angled dovetail groove. Simultaneously, the lower end of the lead screw has a rectangular groove. During use, the lower end of the lead screw engages in the right-angled dovetail groove at the upper end of the brake piston. Even if the lead screw rotates, the connection between the lead screw and the brake piston will not separate. Furthermore, the brake piston is disassembled quickly and easily as the lead screw moves.
[0024] The utility model discloses a brake piston dismounting tool, and the light hole of one side of the tool block is matched with the shell connecting screw, the tool block and the shell are connected and fixed to each other, enough moment is provided, the threaded hole of the other side is matched with the screw rod, the screw rod tail has a recess and is connected with the brake piston, the rotary motion is converted into the linear motion of the brake piston by the action of the screw rod, thereby the brake piston is dismounted, the problem of easy jamming in the dismounting of the hydraulic motor is solved, and the problem can be solved by providing greater moment by matching with a hexagonal wrench and other tools.
[0025] In the specification provided herein, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the specification.
[0026] In addition, those skilled in the art can understand that although some embodiments described herein include certain features contained in other embodiments rather than other features, the combination of features of different embodiments also means that it is within the protection scope of the utility model and forms different embodiments. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved by the present application.
[0027] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above, however, it is not used to limit the utility model, any skilled person in the art can make some changes or modifications as equivalent embodiments with the above prompt technical content without departing from the technical scheme range of the utility model, as long as it does not depart from the technical scheme of the utility model, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model, still belongs to the range of the utility model scheme.
Claims
1. A brake piston dismounting tool, characterized in that: Including tool block (1), one side of tool block (1) is connected with disassembled shell together through screw (2), the other side of tool block (1) is equipped with lead screw (3), tool block (1) is equipped with connecting lead screw (3) thread, the lower end of lead screw (3) is connected with brake piston (5) together.
2. A brake piston removal tool as claimed in claim 1, characterized in that: The thickness of the side of the tool block (1) provided with the screw (2) is greater than the thickness of the side of the tool block (1) provided with the lead screw (3).
3. A brake piston removal tool as defined in claim 1, wherein: The tool block (1) is provided with a light hole (4) connected with the screw (2), and the screw (2) passes through the light hole (4) and is connected with the shell.
4. A brake piston removal tool as defined in claim 3, wherein: The light hole (4) is a non-closed hole, and one side of the light hole (4) is provided with an opening.
5. A brake piston removal tool as defined in claim 1, wherein: The lower end of the lead screw (3) is provided with a row of rectangular grooves, and the upper end of the brake piston (5) is provided with a right-angle dovetail groove matched with the rectangular grooves.