Harmony locomotive snap ring assembling and supporting device
By designing a circlip assembly support device for the handle and semi-circular groove frame, the problem of installation difficulties caused by the lack of support for the circlip was solved, and efficient and safe brake assembly was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRRC LUOYANG CO LTD
- Filing Date
- 2025-01-07
- Publication Date
- 2026-04-17
AI Technical Summary
During the assembly of the Harmony locomotive brakes, the lack of support for the 5mm retaining rings made installation difficult, and they were prone to falling off, affecting assembly efficiency.
A retaining ring assembly support device was designed, comprising a handle, a connecting rod, and a semi-circular groove frame. The second retaining ring is fixed by the square groove of the semi-circular groove frame, providing stable support and ensuring that the bolt passes smoothly through the retaining ring.
It improves the efficiency of brake assembly, ensures stable installation of the retaining ring, prevents it from falling off, and reduces the difficulty and cost of operation.
Smart Images

Figure CN224129625U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of Harmony locomotive brake assembly technology, specifically relating to a Harmony locomotive shackle assembly support device. Background Technology
[0002] The brake is a key component of the bogie of the Harmony locomotive. Mounted on the bogie seat, it primarily provides braking force; braking is achieved through friction between the brake and the brake disc. For example... Figure 5 As shown, during the brake assembly process, the brake hanger must first be placed inside the frame brake seat. Then, 5mm and 13mm retaining rings are placed between the brake seat and the brake hanger, respectively. During assembly, the bolt passes through the brake hanger, 13mm retaining ring, frame brake seat, 5mm retaining ring, and brake hanger in sequence. When passing through the 5mm retaining ring, due to the narrow installation space and the small width of the retaining ring, it is difficult to insert a hand and support the 5mm retaining ring during installation, making it difficult for the bolt to pass through. During installation, the 5mm retaining ring is prone to falling off the installation position and into the lower brake hanger due to the lack of support. Utility Model Content
[0003] In view of the problems existing in the background art, this utility model provides a harmonious locomotive retaining ring assembly support device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a shackle assembly support device for a Harmony locomotive, comprising a handle, a connecting rod, a semi-circular groove frame, and a second shackle. The right end face of the handle is connected to the left end face of the connecting rod, and a transverse semi-circular groove frame is provided on the upper end face of the right end of the connecting rod. The second shackle is engaged in the groove of the semi-circular groove frame.
[0005] The semicircular groove frame is an arc-shaped ring with a width of a. The inner wall of the semicircular groove frame is provided with a square slot with a bottom diameter of R, a width of b, and a depth of c.
[0006] The width of the second retaining ring is not greater than the width of the square retaining groove, i.e., e≤b.
[0007] The thickness of one side of the second retaining ring is not less than the groove depth of the square retaining groove, i.e., f≥c.
[0008] The outer diameter of the second retaining ring is equal to the bottom diameter of the square retaining groove, i.e., r=R.
[0009] The width of the semi-circular groove frame is not greater than the width of the second retaining ring installation position, i.e., a≤d.
[0010] The arc angle of the semi-circular slot frame is 180°.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a shackle assembly support device for a harmonious locomotive. The device has a simple design structure, low manufacturing cost, is convenient to use, efficient and safe, and greatly improves the assembly efficiency of the brake. Attached Figure Description
[0012] Figure 1 This is the front view of the present invention.
[0013] Figure 2 This is a cross-sectional view of AA.
[0014] Figure 3 This is a cross-sectional view of the second retaining ring.
[0015] Figure 4 A half-section view showing the second retaining ring placed inside the semi-circular slot.
[0016] Figure 5 This is a schematic diagram showing the installation position of the second retaining ring.
[0017] In the diagram: 1. Handle, 2. Connecting rod, 3. Semicircular groove frame, 4. Brake hanger, 5. Bolt, 6. Brake frame seat, 7. First retaining ring, 8. Second retaining ring. Detailed Implementation
[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] The following is in conjunction with the appendix Figure 1-5The specific embodiments of this utility model are further described in detail: A Harmony locomotive retaining ring assembly support device includes a handle 1, a connecting rod 2, a semi-circular groove frame 3, and a second retaining ring 8. The handle 1 has its right end face connected to the left end face of the connecting rod 2, and a transverse semi-circular groove frame 3 is provided on the upper end face of the right end of the connecting rod 2. The second retaining ring 8 is engaged in the groove of the semi-circular groove frame 3. The semi-circular groove frame 3 is an arc-shaped ring with a width of a. A square groove is provided on the inner wall of the semi-circular groove frame 3, with a bottom diameter of R, a groove width of b, and a groove depth of c. The width of the second retaining ring 8 is not greater than the width of the square groove, i.e., e ≤ b. The width of the second retaining ring 8 is not greater than the width of the square groove, so as to facilitate placing the second retaining ring 8 in the square groove of the semi-circular groove frame 3. The thickness of one side of the second retaining ring 8 is not less than the groove depth of the square groove, i.e., f ≥ c. When the second retaining ring 8 is placed in the semi-circular groove frame 3... When the second retaining ring 5 is placed in the square slot of the circular slot frame 3, the square slot does not affect the bolt 5 passing through the central hole of the second retaining ring 8; the outer diameter of the second retaining ring 8 is equal to the bottom diameter of the square slot, i.e., r=R; when the second retaining ring 8 is placed in the square slot of the semi-circular slot frame 3, the outer diameter of the second retaining ring 8 is equal to the bottom diameter of the square slot, which can prevent the second retaining ring 8 from shaking in the square slot, so as not to affect the operator's installation; the width of the semi-circular slot frame 3 is not greater than the installation position of the second retaining ring 8. The width of the semicircular groove 3 is a≤d; when installing the second retaining ring 8, the width of the semicircular groove 3 is not greater than the width of the installation position of the second retaining ring 8, so that the semicircular groove 3 can move up and down easily to facilitate the installation of the second retaining ring 8; the arc angle of the semicircular groove 3 is 180°; after multiple tests, the arc angle of the semicircular groove 3 should not be greater than 180°, which can effectively prevent the second retaining ring 8 from slipping off at both ends of the square groove. When the arc angle of the semicircular groove 3 is 180°, it is the optimal solution.
[0020] The usage process of this utility model is as follows: First, place the second retaining ring 8 into the square retaining groove of the semi-circular groove frame 3; as follows Figure 5 As shown, during assembly, bolt 5 is inserted into brake hanger 4 from the right end, first through the 13mm first retaining ring 7, and then through the frame brake seat 6. At this time, the operator holds handle 1 and extends the semi-circular slot frame 3 with the 5mm second retaining ring 8 longitudinally from one end of brake hanger 4 to the installation position of the second retaining ring 8. Then, the operator slowly inserts the front end of bolt 5 into the middle hole of the second retaining ring 8. When bolt 5 passes through the second retaining ring 8, the operator moves the semi-circular slot frame 3 downward and then moves the device out. Finally, bolt 5 is passed through the left end of brake hanger 4 and tightened with a nut at the exit end.
[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0022] The parts of this utility model not described in detail are existing technologies.
Claims
1. A kind of harmonic locomotive ring assembly support device, including handle (1), connecting rod (2), semicircular slot frame (3) and second ring (8), it is characterized by: The right end face of the handle (1) is connected to the left end face of the connecting rod (2), and a transverse semi-circular groove frame (3) is provided on the upper end face of the right end of the connecting rod (2); the second retaining ring (8) is engaged in the groove of the semi-circular groove frame (3); The semicircular groove frame (3) is an arc ring with a width of a. A square slot is provided on the inner wall of the semicircular groove frame (3). The bottom diameter of the square slot is R, the width of the square slot is b, and the depth of the square slot is c.
2. The assembly support for a harmonic locomotive collar as defined in claim 1 wherein: The width of the second retaining ring (8) is not greater than the width of the square retaining groove, i.e., e≤b.
3. The assembly support for a harmonic locomotive collar as defined in claim 1 wherein: The thickness of one side of the second retaining ring (8) is not less than the groove depth of the square retaining groove, i.e., f≥c.
4. The assembly support device for a harmonic locomotive collar as defined in claim 1 wherein: The outer diameter of the second retaining ring (8) is equal to the bottom diameter of the square retaining groove, i.e., r=R.
5. The assembly support for a harmonic locomotive collar as defined in claim 1 wherein: The width of the semi-circular groove frame (3) is not greater than the width of the second retaining ring (8) installation position, i.e., a≤d.
6. The assembly support device for a harmonic locomotive collar as defined in claim 1 wherein: The arc angle of the semi-circular slot frame (3) is 180°.