A worm gear speed reducer

Abstract

The utility model discloses a worm and gear speed reducer relates to the technical field of speed reducer, including casing, drive arrangement and be provided with the worm and worm gear in casing, drive arrangement includes motor and drive shaft, motor sets up on casing, one end of drive shaft is connected the output shaft of motor, and the other end is equipped with drive tooth, and the worm is sleeved with main tooth, and drive tooth is engaged with main tooth, and worm is engaged with worm gear, the worm and gear speed reducer provided by the utility model has the advantages of small noise, small vibration.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a worm gear reducer. Background Technology

[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine.

[0003] Existing speed reducers typically suffer from problems such as high noise and vibration. Utility Model Content

[0004] This utility model discloses a worm gear reducer to solve the technical problems of high noise and high vibration.

[0005] To solve the above-mentioned technical problems, the present invention proposes the following optimized technical solution: A worm gear reducer includes a housing, a drive unit, and a worm and a worm wheel disposed within the housing. The drive unit includes a motor and a drive shaft. The motor is mounted on the housing. One end of the drive shaft is connected to the output shaft of the motor, and the other end is provided with drive teeth. The worm is fitted with main teeth. Both the drive teeth and the main teeth are helical bevel gears. The drive teeth mesh with the main teeth, and the worm meshes with the worm wheel.

[0006] Furthermore, the present invention also includes a bearing housing, which is bolted to the housing and covers the drive shaft. The drive shaft is connected to the bearing housing via a bearing, and the motor is connected to the bearing housing.

[0007] Furthermore, the present invention also includes a sealing cover, which is fitted onto the drive shaft and seals the opening of the bearing seat, and the drive shaft is connected to the sealing cover by a lock nut.

[0008] Furthermore, the inner cavity shape of the housing matches the shape of the worm and the worm wheel. The worm wheel is connected to the housing through a bearing. The two ends of the worm are connected to the housing through lock nuts. The inner wall of the worm wheel is connected to the housing through a bearing, and the outer wall is connected to the housing through a skeleton oil seal.

[0009] Furthermore, the end of the drive shaft away from the drive teeth is provided with a groove, the inner wall of the groove is provided with a first limiting protrusion, the output shaft of the motor is provided with a first limiting groove, and the output shaft of the motor is inserted into the groove so that the first limiting protrusion is engaged in the first limiting groove.

[0010] Furthermore, the main tooth is provided with a second limiting groove, and the worm is provided with a second limiting protrusion. When the main tooth is fitted onto the worm, the second limiting protrusion is engaged in the second limiting groove.

[0011] Furthermore, the housing is provided with a first opening, which corresponds to the top position of the worm gear, and a dust cover is detachably connected to the first opening.

[0012] Furthermore, the housing is also provided with a second opening, which corresponds to the bottom position of the worm gear, and a rear cover is detachably connected to the second opening.

[0013] Furthermore, the housing is also provided with a third opening, which corresponds to the position of the main tooth, and a side cover is detachably connected to the third opening.

[0014] The present invention has the following advantages over the prior art: The worm gear reducer provided by this utility model includes a housing, a drive device, and a worm and a worm wheel disposed within the housing. The motor drives the worm to rotate by meshing the drive teeth of the drive shaft with the main teeth. The worm drives the worm wheel to rotate. The worm gear reducer provided by this utility model has the advantages of low noise and low vibration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model.

[0017] Figure 3 This is an exploded view of the drive device of this utility model.

[0018] In the diagram: 1. Housing; 2. Drive unit; 3. Worm; 4. Worm wheel; 5. Motor; 6. Drive shaft; 7. Drive gear; 8. Main gear; 9. Bearing housing; 10. Sealing cover; 11. Locking nut; 12. Bearing; 13. Skeleton oil seal; 14. Dust cover; 15. Rear cover; 16. Side cover. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] See Figures 1-3A worm gear reducer includes a housing 1, a drive unit 2, and a worm 3 and a worm wheel 4 disposed within the housing 1. The drive unit 2 includes a motor 5 and a drive shaft 6. The motor 5 is mounted on the housing 1. One end of the drive shaft 6 is connected to the output shaft of the motor 5, and the other end is provided with a drive tooth 7. The worm 3 is fitted with a main tooth 8. Both the drive tooth 7 and the main tooth 8 are helical bevel gears. The drive tooth 7 meshes with the main tooth 8. The worm 3 meshes with the worm wheel 4, and the worm wheel 4 is used to connect to an external transmission structure.

[0021] When in operation, motor 5 starts to drive drive shaft 6 to rotate. Drive gear 7 of drive shaft 6 meshes with main gear 8, causing drive shaft 6 to drive main gear 8 and worm 3 to rotate. Worm 3 meshes with worm wheel 4, causing worm 3 to drive worm wheel 4 to rotate. Worm wheel 4 drives the external transmission structure to rotate.

[0022] In this embodiment, the present invention also includes a bearing housing 9, which is bolted to the housing 1 and covers the drive shaft 6. The drive shaft 6 is connected to the bearing housing 9 via a bearing 12, and the motor 5 is connected to the bearing housing 9. The bearing housing 9 and the motor 5 are separately configured, allowing adjustment of the installation distance between the drive gear 7 and the main gear 8. Specifically, when the bearing housing 9 and the motor 5 are bolted together, fine position adjustments can be made when the bolts are connected to the threaded holes.

[0023] In this embodiment, the present invention also includes a sealing cover 10, which is sleeved on the drive shaft 6 and seals the opening of the bearing seat 9, thereby playing a sealing role. The drive shaft 6 is connected to the sealing cover 10 by a locking nut 11.

[0024] In this embodiment, the inner cavity shape of the housing 1 matches the shape of the worm 3 and the worm wheel 4. The worm wheel 4 is connected to the housing 1 through a bearing 12. The two ends of the worm 3 are connected to the housing 1 through locking nuts 11. The inner wall of the worm wheel 4 is connected to the housing 1 through the bearing 12, and the outer wall is connected to the housing 1 through a skeleton oil seal 13. The worm 3 and the worm wheel 4 can rotate smoothly in the housing 1.

[0025] In this embodiment, the end of the drive shaft 6 away from the drive tooth 7 is provided with a groove, and the inner wall of the groove is provided with a first limiting protrusion. The output shaft of the motor 5 is provided with a first limiting groove. The output shaft of the motor 5 is inserted into the groove so that the first limiting protrusion is engaged in the first limiting groove. When the output shaft of the motor 5 rotates, since the first limiting protrusion is engaged in the first limiting groove, the output shaft of the motor 5 can drive the drive shaft 6 to rotate.

[0026] In this embodiment, the main tooth 8 is provided with a second limiting groove, and the worm 3 is provided with a second limiting protrusion. When the main tooth 8 is fitted onto the worm 3, the second limiting protrusion is engaged in the second limiting groove. When the main tooth 8 rotates, because the second limiting protrusion is engaged in the second limiting groove, the main tooth 8 can drive the worm 3 to rotate.

[0027] In this embodiment, the housing 1 has a first opening corresponding to the top position of the worm gear 3. A dust cover 14 is detachably connected to the first opening, specifically by bolts. The worm gear 3 can be installed inside the housing 1 through the first opening for assembly.

[0028] In this embodiment, the housing 1 is also provided with a second opening, which corresponds to the bottom position of the worm 3. The second opening is detachably connected to a rear cover 15, specifically by bolts. The second opening is also used for assembling the worm 3 and allows the rotation of the worm 3 to be observed through the second opening.

[0029] In this embodiment, the housing 1 is also provided with a third opening, which corresponds to the position of the main tooth 8. The third opening is detachably connected to a side cover 16, specifically by bolts. The side cover 16 is used to check the rotation of the main tooth 8.

[0030] In this embodiment, the housing 1 is also provided with a second opening, which corresponds to the bottom position of the worm 3. The second opening is detachably connected to a rear cover 15, specifically by bolts. The second opening is also used for assembling the worm 3 and allows the rotation of the worm 3 to be observed through the second opening.

[0031] In this embodiment, the housing 1 is also provided with a third opening, which corresponds to the position of the main tooth 8. The third opening is detachably connected to a side cover 16, specifically by bolts. The side cover 16 is used to check the rotation of the main tooth 8.

[0032] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A worm gear reducer, characterized in that, The device includes a housing, a drive unit, and a worm and a worm wheel disposed within the housing. The drive unit includes a motor and a drive shaft. The motor is disposed on the housing. One end of the drive shaft is connected to the output shaft of the motor, and the other end is provided with drive teeth. The worm is fitted with main teeth. Both the drive teeth and the main teeth are helical bevel gears. The drive teeth mesh with the main teeth, and the worm meshes with the worm wheel.

2. The worm gear reducer according to claim 1, characterized in that, It also includes a bearing housing, which is bolted to the housing and covers the drive shaft. The drive shaft is connected to the bearing housing via a bearing, and the motor is connected to the bearing housing.

3. A worm gear reducer according to claim 2, characterized in that, It also includes a sealing cap, which is fitted onto the drive shaft and seals the opening of the bearing housing, and the drive shaft is connected to the sealing cap by a lock nut.

4. A worm gear reducer according to claim 3, characterized in that, The inner cavity shape of the housing matches the shape of the worm and the worm wheel. The two ends of the worm are connected to the housing by locking nuts. The inner wall of the worm wheel is connected to the housing by bearings, and the outer wall is connected to the housing by a skeleton oil seal.

5. A worm gear reducer according to claim 1, characterized in that, The drive shaft has a groove at one end away from the drive teeth, and the inner wall of the groove has a first limiting protrusion. The output shaft of the motor has a first limiting groove. The output shaft of the motor is inserted into the groove so that the first limiting protrusion is engaged in the first limiting groove.

6. A worm gear reducer according to claim 1, characterized in that, The main tooth is provided with a second limiting groove, and the worm is provided with a second limiting protrusion. When the main tooth is fitted onto the worm, the second limiting protrusion is locked in the second limiting groove.

7. A worm gear reducer according to claim 1, characterized in that, The housing has a first opening, which corresponds to the top position of the worm gear, and a dust cover is detachably connected to the first opening.

8. A worm gear reducer according to claim 1, characterized in that, The housing is also provided with a second opening, which corresponds to the bottom position of the worm gear, and a rear cover is detachably connected to the second opening.

9. A worm gear reducer according to claim 1, characterized in that, The housing is also provided with a third opening, which corresponds to the position of the main tooth, and a side cover is detachably connected to the third opening.

Images