Self-locking check ring

Abstract

The utility model belongs to the technical field of high-speed motor accessories, and particularly discloses a self-locking check ring which comprises at least two layers of check ring bodies formed by laterally winding flat steel wires, and fan-shaped grooves are formed in openings in the two ends of each check ring body. A protruding semicircular boss and an elastic piece are punched on the flat filament plane corresponding to the lower portion of the fan-shaped groove, a Z-shaped bend is arranged on the check ring body, and the fan-shaped groove, the semicircular boss and the elastic piece are all machined through a stamping die. When the self-locking check ring is installed, the check ring body is sleeved with the taper guide sleeve firstly, then the elastic multi-claw pressing sleeve is pushed by the air cylinder or the electric cylinder to push the check ring body to slide towards the clamp spring groove shaft along the taper guide sleeve and slide into the clamp spring groove, the check ring is finally installed in place, the whole check ring installation process can be fully automatic, efficiency is improved, and the production cost is reduced. The requirement of an automatic production line is met, and the possibility that the check ring is damaged during manual installation is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of high-speed motor accessories, and in particular to a self-locking retaining ring. Background Art

[0002] With the increase in the speed of motors used in new energy vehicles and new home appliances, there is a need for a self-locking retaining ring that can be used for high speeds to ensure that the retaining ring is reliably locked under high speeds and high centrifugal forces to prevent it from flying off. In addition, with the increasing degree of automation in production lines, there is an urgent need for retaining rings to be quickly installed in place using automated equipment.

[0003] Existing self-locking retaining rings in Chinese patents CN205715159U and CN219041549U both use a single locking structure, which has the following drawbacks: (1) During installation, the locking structure must be manually separated before the retaining ring is manually inserted into the retaining ring groove, which cannot meet the requirements for fast and fully automatic installation of retaining rings on automated production lines. (2) Furthermore, because the locking performance of the single locking structure is limited at higher speeds, the retaining ring is at risk of deformation and flying off under greater centrifugal force, which cannot meet the requirements of higher speeds. Utility Model Content

[0004] In view of this, the purpose of the present invention is to solve the shortcomings of the background technology and to propose a self-locking retaining ring to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides a self-locking retaining ring, including a retaining ring body made by laterally winding a flat steel wire, the retaining ring body having at least two layers, fan-shaped grooves are provided at the openings at both ends of the retaining ring body, and raised semicircular bosses and spring pieces are punched on the corresponding lower flat wire planes of the fan-shaped grooves, and a Z-shaped bend is provided on the retaining ring body.

[0006] Preferably, the fan-shaped groove, the semicircular boss and the spring piece are all processed by a stamping die, and the fan-shaped groove, the raised semicircular boss and the spring piece together constitute a bidirectional locking structure.

[0007] Preferably, the semicircular boss is used to lock the tangential deformation of the retaining ring body.

[0008] Preferably, the spring piece is used to lock the radial deformation of the retaining ring body, so that the retaining ring can be firmly stuck in the retaining spring groove to achieve a self-locking action.

[0009] Preferably, the Z-shaped bend can ensure the flatness of the entire retaining ring and can clamp the retaining ring groove in all directions.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. For the self-locking retaining ring, the retaining ring body is first inserted into the tapered guide sleeve during installation, and then the elastic multi-claw pressing sleeve pushes the retaining ring body along the tapered guide sleeve to slide toward the retaining spring groove axis under the push of the cylinder or electric cylinder, and slides into the retaining spring groove, so that the retaining ring is finally installed in place. The entire retaining ring installation process can be fully automated, which improves efficiency, meets the requirements of the automated production line, and avoids the possibility of damaging the retaining ring during manual installation.

[0012] 2. The self-locking retaining ring, the fan-shaped groove, the raised semicircular boss and the spring piece together constitute a bidirectional locking structure, which locks the deformation of the retaining ring in the tangential direction and the radial direction at the same time, so that the retaining ring has a higher locking ability and can work at a higher speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of this application;

[0014] Figure 2 This is a structural diagram of another perspective of this application;

[0015] Figure 3 Schematic diagram of the elastic multi-claw pressing sleeve used in this application;

[0016] Figure 4 Schematic diagram of the tapered introducer sleeve used in this application;

[0017] Figure 5 This is a schematic diagram of the entire installation process for this application.

[0018] Among them: 1. Retaining ring body; 2. Fan-shaped groove; 3. Spring piece; 4. Semicircular boss; 5. Z-shaped bend; 6. Elastic multi-claw pressing sleeve; 7. Tapered guide sleeve; 8. Circlip groove shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] See also Figure 1-5 A self-locking retaining ring comprises a retaining ring body 1 made by laterally winding a flat steel wire. The retaining ring body 1 has at least two layers. Fan-shaped grooves 2 are provided at the openings at both ends of the retaining ring body 1. A raised semicircular boss 4 and a spring piece 3 are punched on the corresponding flat wire plane below the fan-shaped groove 2. A Z-shaped bend 5 is provided on the retaining ring body 1.

[0021] Through the above technical solution, when installing the retaining ring body 1, the retaining ring body 1 is first inserted into the tapered guide sleeve 7, and then the elastic multi-claw pressing sleeve 6 is pushed by the cylinder or electric cylinder to push the retaining ring body 1 along the tapered guide sleeve 7 to slide toward the retaining spring groove shaft 8 and slide into the retaining spring groove. The retaining ring is finally installed in place. The entire installation process does not require manual intervention, meeting the requirements of automatic production line installation.

[0022] Specifically, the fan-shaped groove 2, the semicircular boss 4 and the spring piece 3 are all processed by a stamping die.

[0023] Through the above technical solution, the semicircular boss 4 and the spring piece 3 formed by punching and pulling the stamping die are of standard design, which makes it easier to align and install during assembly.

[0024] Specifically, the semicircular boss 4 is used to lock the tangential deformation of the retaining ring body 1 .

[0025] Through the above technical solution, the semicircular boss 4 is used to lock the tangential deformation, which can effectively prevent the retaining ring body 1 from being offset or loosened due to external forces during installation or use. This stable performance greatly improves the reliability and stability of the equipment.

[0026] Specifically, the spring piece 3 is used to lock the radial deformation of the retaining ring body 1 .

[0027] Through the above technical solution, the spring piece 3 usually has a certain elasticity and can provide additional support and radial pressure around the retaining ring. This support force not only helps to maintain the position of the retaining ring, but also reduces the instability of the retaining ring caused by vibration or load changes during operation.

[0028] Specifically, the Z-shaped bend 5 can ensure the flatness of the entire retaining ring and can clamp the retaining ring groove in a 360-degree direction.

[0029] Through the above technical solution, the Z-shaped bend 5 structure can keep the shape of the retaining ring consistent in the 360-degree direction. This uniformity ensures that the retaining ring can evenly clamp the slot when installed in the retaining ring slot, and will not cause assembly difficulties or incomplete engagement due to inconsistent shapes.

[0030] When the locking mechanism is in the closed position, the spring 3 is pressed against the locking member 4 and the spring 3 is pressed against the locking member 4, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position, and the locking member 3 is in the closed position The spring clip 3 clamps the lower edge of the fan-shaped groove 2 to prevent the radial deformation of the retaining ring, thus achieving two-way locking, so that the retaining ring has higher and more stable performance. The semicircular boss 4 can effectively lock the deformation of the retaining ring body 1 in the tangential direction through its design, which means that even if it is affected by external forces, the tangential movement of the retaining ring body 1 in its installation position can be stopped by the boss, thereby maintaining its original position unchanged. The design purpose of the spring clip 3 is to lock the radial deformation of the retaining ring body 1. This design ensures that the retaining ring can always maintain the correct radial position of its installation position and will not move or displace unexpectedly due to external pressure or vibration. The two-way locking structure formed by the combined semicircular boss 4 and the spring clip 3 enables the retaining ring body 1 to be firmly stuck in the desired position after installation, realizing self-locking action. Regardless of tangential movement or radial deformation, these specific design elements can effectively prevent the retaining ring from accidentally falling off or moving.

[0031] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-locking retaining ring, comprising a retaining ring body (1) formed by side-winding a flat steel wire, the retaining ring body (1) having at least two layers, characterized in that: The retaining ring body (1) is provided with fan-shaped grooves (2) at both end openings, and a raised semicircular boss (4) and a spring piece (3) are punched on the corresponding flat wire plane below the fan-shaped groove (2). The retaining ring body (1) is provided with a Z-shaped bend (5).

2. A self-locking retaining ring according to claim 1, characterized in that: The fan-shaped groove (2), the semicircular boss (4) and the spring piece (3) are all processed by a stamping die.

3. The self-locking retaining ring according to claim 1, characterized in that: The semicircular boss (4) is used to lock the tangential deformation of the retaining ring body (1).

4. A self-locking retaining ring according to claim 1, characterized in that: The spring piece (3) is used to lock the radial deformation of the retaining ring body (1).

5. The self-locking retaining ring according to claim 1, characterized in that: The Z-shaped bend (5) can ensure the flatness of the entire retaining ring and can clamp the retaining ring groove in 360-degree directions.

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