Anti-locking gear

Abstract

The utility model discloses an anti-locking gear which comprises a gear body and a shaft column, teeth are arranged on the outer wall of the gear body, an installation hole is formed in the center of the surface of the gear body, a driving sleeve and an end sleeve are installed in the two ends of the installation hole respectively, a movable sleeve is arranged at one end of the driving sleeve, and the movable sleeve is sleeved with the shaft column. A spring is arranged between the movable sleeve and the end sleeve, and a synchronous groove is formed in the inner wall of the movable sleeve; through the synchronous block, the synchronous groove, the movable sleeve, the driving sleeve, the spring and the end sleeve, when the gear is stuck, the torque acting force between the adjacent slopes of the driving sleeve and the movable sleeve is increased, and when the generated acting force is larger than the jacking force of the spring, the movable sleeve is pushed to move, and the end face and the driving sleeve are separated; the shaft column is stopped from driving the gear to rotate in time, and gear assembly damage caused by jamming is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of gears, and in particular relates to an anti-jamming gear. Background Art

[0002] A gear refers to a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power, such as the gear with application number 201610882577.9, in which at least one of the two end faces is provided with at least one end face groove in the shape of an involute extending outward from the center of the gear, and the end face groove is connected to the center hole of the gear. The provided gear improves the lubrication between the center hole of the gear and the center shaft. The above gear has the following defects:

[0003] (1) When existing gears are used as mechanical elements for meshing transmission, the gears are prone to gear meshing deviation or the presence of foreign matter during operation, causing the gear parts to become stuck. If the gear operation cannot be stopped in time, the gear will continue to output power due to the jam, resulting in tooth breakage and damage to the gear body. For this reason, we propose an anti-jamming gear. Utility Model Content

[0004] The utility model aims to provide an anti-jamming gear to solve the problem of gear damage caused by the jamming of the gears mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-stuck gear, comprising a gear body and a shaft column, the outer wall of the gear body is provided with teeth, a mounting hole is opened at the center of the surface of the gear body, a drive sleeve and an end sleeve are respectively installed inside the two ends of the mounting hole, a movable sleeve is provided at one end of the drive sleeve, a spring is provided between the movable sleeve and the end sleeve, a synchronization groove is opened on the inner wall of the movable sleeve, the shaft column passes through the drive sleeve, the movable sleeve and the end sleeve, a synchronization block is provided inside the synchronization groove, the synchronization block is fixed on the outer wall of the shaft column, and the adjacent mating surfaces of the drive sleeve and the movable sleeve are inclined structures.

[0006] Preferably, a guide groove is provided on the end surface of the end sleeve, and a guide rod is provided inside the guide groove and the spring.

[0007] Preferably, a rotating groove is formed on the bottom end surface of the movable sleeve, a rotating ring is provided inside the rotating groove, and one end of the guide rod is connected to the rotating ring.

[0008] Preferably, the longitudinal cross-section of the swivel is a circular structure.

[0009] Preferably, a limiting groove with a circular cross-section is provided on the outer wall of the movable sleeve, a limiting block is arranged inside the limiting groove, and the limiting block is fixed on the inner wall of the mounting hole.

[0010] Preferably, the longitudinal sections of the movable sleeve, the driving sleeve and the end sleeve are all circular structures, and the central axes of the movable sleeve, the driving sleeve and the end sleeve coincide with each other.

[0011] Preferably, a spherical groove is formed on the outer wall of the movable sleeve, and a ball is embedded in the spherical groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) Through the designed synchronous block, synchronous groove, movable sleeve, drive sleeve, spring and end sleeve, the shaft column cooperates with the synchronous block and the synchronous groove to ensure that the movable sleeve can slide on its surface while following its rotation. The spring pushes the movable sleeve to be close to the drive sleeve. The shaft column drives the movable sleeve to rotate, and a torque force is generated between the adjacent inclined surfaces of the movable sleeve and the drive sleeve, driving them to rotate synchronously, and then driving the gear to rotate. When the gear is stuck, the torque force between the adjacent inclined surfaces of the drive sleeve and the movable sleeve becomes larger. When the force generated is greater than the top force of the spring, the movable sleeve is pushed to move, and the end sleeve is driven. The surface and the driving sleeve are separated, and the shaft column is stopped in time to drive the gear to rotate, which can effectively avoid the phenomenon of jamming and damage to the gear assembly. The designed guide rod and guide groove can realize the support of spring correction and avoid the spring from bending, tilting, excessive tilting and losing elasticity. The designed rotating groove and swivel can connect the guide rod to the swivel to support it, which can avoid the guide rod from tilting and affecting the spring correction limit. The designed limit block and limit groove can limit and support the movable sleeve. The designed ball can play a lubricating role, so that the movable sleeve can move more smoothly in the mounting hole and reduce wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a top cross-sectional view of the partial assembly of the gear body, movable sleeve and driving sleeve of the utility model;

[0016] Figure 3 It is a three-dimensional diagram of the movable cover of the utility model;

[0017] Figure 4 This is the front view of the assembly of the swivel and guide rod of the utility model;

[0018] In the figure: 1. teeth; 2. gear body; 3. mounting hole; 4. shaft column; 5. end sleeve; 6. drive sleeve; 7. synchronization block; 8. synchronization groove; 9. movable sleeve; 10. ball; 11. limit groove; 12. limit block; 13. guide groove; 14. guide rod; 15. spring; 16. rotating groove; 17. swivel. DETAILED DESCRIPTION

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

[0020] Example

[0021] See also Figures 1 to 4 The utility model provides a technical solution: an anti-stuck gear, including a gear body 2 and a shaft column 4, the outer wall of the gear body 2 is provided with teeth 1, a mounting hole 3 is opened at the center of the surface of the gear body 2, a driving sleeve 6 and an end sleeve 5 are respectively installed inside the two ends of the mounting hole 3, a movable sleeve 9 is arranged at one end of the driving sleeve 6, a spring 15 is arranged between the movable sleeve 9 and the end sleeve 5, a synchronous groove 8 is opened on the inner wall of the movable sleeve 9, the shaft column 4 runs through the driving sleeve 6, the movable sleeve 9 and the end sleeve 5, a synchronous block 7 is arranged inside the synchronous groove 8, through the designed synchronous block 7, synchronous groove 8, movable sleeve 9, driving sleeve 6, spring 15 and end sleeve 5, the shaft column 4 cooperates with the synchronous block 7 and the synchronous groove 8 to ensure the movable The sleeve 9 rotates with it and can also slide on its surface. The spring 15 pushes the movable sleeve 9 to be close to the drive sleeve 6. The shaft column 4 drives the movable sleeve 9 to rotate. A torque force is generated between the adjacent inclined surfaces of the movable sleeve 9 and the drive sleeve 6, driving them to rotate synchronously, and then driving the gear to rotate. When the gear is stuck, the torque force between the adjacent inclined surfaces of the drive sleeve 6 and the movable sleeve 9 becomes larger. When the force generated is greater than the top force of the spring 15, the movable sleeve 9 is pushed to move, and the end face and the drive sleeve 6 are separated, and the shaft column 4 is stopped in time to drive the gear to rotate, effectively avoiding the occurrence of jamming and causing damage to the gear assembly. The synchronization block 7 is fixed on the outer wall of the shaft column 4, and the adjacent matching surfaces of the drive sleeve 6 and the movable sleeve 9 are inclined structures.

[0022] In this embodiment, preferably, a guide groove 13 is provided on the end face of the end sleeve 5, and a guide rod 14 is provided inside the guide groove 13 and the spring 15. Through the designed guide rod 14 and guide groove 13, the spring 15 can be corrected and supported to prevent the spring from bending, tilting, and losing its elasticity. A rotating groove 16 is provided on the bottom end face of the movable sleeve 9, and a swivel 17 is provided inside the rotating groove 16. Through the designed rotating groove 16 and swivel 17, the guide rod 14 can be connected to the swivel 17 to support it, so that the guide rod 14 can be prevented from tilting and affecting the correction and limiting of the spring 15. One end of the guide rod 14 is connected to the swivel 17, and the longitudinal section of the swivel 17 is a circular structure.

[0023] In this embodiment, preferably, a limiting groove 11 with a circular cross-section is provided on the outer wall of the movable sleeve 9, and a limiting block 12 is arranged inside the limiting groove 11. The movable sleeve 9 is limited and supported by the designed limiting block 12 and limiting groove 11. The limiting block 12 is fixed on the inner wall of the mounting hole 3. The longitudinal sections of the movable sleeve 9, the driving sleeve 6 and the end sleeve 5 are all circular structures, and the central axes of the movable sleeve 9, the driving sleeve 6 and the end sleeve 5 coincide with each other. A spherical groove is provided on the outer wall of the movable sleeve 9, and a ball 10 is embedded in the spherical groove. The designed ball 10 plays a lubricating role, so that the movable sleeve 9 can move more smoothly in the mounting hole 3 and reduce wear.

[0024] Working principle and use process of the utility model: the shaft column 4 of the utility model cooperates with the synchronization block 7 and the synchronization groove 8 to ensure that the movable sleeve 9 can slide on its surface while following its rotation, and the movable sleeve 9 is pushed tightly against the drive sleeve 6 by the spring 15. The shaft column 4 drives the movable sleeve 9 to rotate, and a torque force is generated between the adjacent inclined surfaces of the movable sleeve 9 and the drive sleeve 6, driving them to rotate synchronously, and then driving the gears to rotate. When the gears are stuck, the torque force between the adjacent inclined surfaces of the drive sleeve 6 and the movable sleeve 9 becomes larger. When the force generated is greater than the top force of the spring 15, the movable sleeve 9 is pushed to move, and the end face and the drive sleeve 6 are separated, and the shaft column 4 is stopped in time to drive the gears to rotate, effectively avoiding the occurrence of jamming and causing damage to the gear assembly.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-seizure gear, comprising a gear body (2) and a shaft column (4), wherein the outer wall of the gear body (2) is provided with teeth (1), and a mounting hole (3) is provided at the center of the surface of the gear body (2), characterized in that: A driving sleeve (6) and an end sleeve (5) are respectively installed inside the two ends of the mounting hole (3); a movable sleeve (9) is arranged at one end of the driving sleeve (6); a spring (15) is arranged between the movable sleeve (9) and the end sleeve (5); a synchronization groove (8) is opened on the inner wall of the movable sleeve (9); the shaft column (4) passes through the driving sleeve (6), the movable sleeve (9) and the end sleeve (5); a synchronization block (7) is arranged inside the synchronization groove (8); the synchronization block (7) is fixed on the outer wall of the shaft column (4); and the adjacent mating surfaces of the driving sleeve (6) and the movable sleeve (9) are inclined structures.

2. The anti-seizure gear according to claim 1, characterized in that: A guide groove (13) is provided on the end surface of the end sleeve (5), and a guide rod (14) is provided inside the guide groove (13) and the spring (15).

3. The anti-seizure gear according to claim 2, characterized in that: The bottom end surface of the movable sleeve (9) is provided with a rotating groove (16), a rotating ring (17) is arranged inside the rotating groove (16), and one end of the guide rod (14) is connected to the rotating ring (17).

4. The anti-seizure gear according to claim 3, characterized in that: The longitudinal section of the rotating ring (17) is a circular structure.

5. The anti-seizure gear according to claim 3, characterized in that: The outer wall of the movable sleeve (9) is provided with a limiting groove (11) with a circular cross-section, and a limiting block (12) is arranged inside the limiting groove (11), and the limiting block (12) is fixed on the inner wall of the mounting hole (3).

6. The anti-seizure gear according to claim 5, characterized in that: The longitudinal sections of the movable sleeve (9), the driving sleeve (6) and the end sleeve (5) are all circular structures, and the central axes of the movable sleeve (9), the driving sleeve (6) and the end sleeve (5) coincide with each other.

7. The anti-seizure gear according to claim 6, characterized in that: The outer wall of the movable sleeve (9) is provided with a spherical groove, and a ball (10) is embedded in the spherical groove.

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