CN219432400U

CN219432400U - Low-noise planetary gear reducer

Info

Publication number: CN219432400U
Application number: CN202320843970.2U
Authority: CN
Inventors: 骆健
Original assignee: Changzhou Youlande Transmission Equipment Co ltd
Current assignee: Changzhou Youlande Transmission Equipment Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-07-28
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a low-noise planetary gear reducer which comprises a shell, wherein an input shaft and an output shaft are arranged on the side surface of the shell through bearings. One end of the output shaft, which is positioned in the shell, is clamped with a coupler, and one end of the coupler, which is far away from the output shaft, is clamped with a worm gear planetary gear set. The side of the planetary gear set meshes with an input shaft which is not in the same plane as the output shaft and which perpendicularly intersects. The shell is made of lightweight materials. The input shaft adopts a worm, the side surface of the input shaft is meshed with an outer worm wheel of the worm wheel planetary gear set to achieve first speed reduction, the outer worm wheel drives an inner planetary gear to rotate, and the inner planetary gear drives a shaft to rotate, so that the rotation of an output shaft achieves second speed reduction. The vibration amplitude is indirectly reduced by gradually decreasing the layers, and the noise reduction effect is realized.

Description

Low-noise planetary gear reducer

Technical Field

The utility model relates to the technical field of speed reducer equipment, in particular to a low-noise planetary gear speed reducer.

Background

A reduction gear is often used as a reduction gear between the prime mover and the working machine. The noise of the speed reducer is generated by vibration caused by the action of periodical alternating force generated by meshing of the gears in the machine body on the bearing and the box body in the running process.

The existing patent (201520786813.8) discloses a noise reduction device of a speed reducer, which comprises a noise reduction cover, wherein the noise reduction cover is internally provided with the speed reducer, and the noise reduction cover and the speed reducer are arranged on a pedestal; the noise reduction cover is divided into a cover body outer layer and a cover body inner layer, and the cover body outer layer and the cover body inner layer form the noise reduction cover with a hollow structure. The outer layer of the cover body is a flexible shock absorption layer, and the inner layer of the cover body is a vibrating diaphragm. Loose porous materials are filled between the outer layer of the cover body and the inner layer of the cover body.

In the process of implementing the present utility model, the inventor finds that at least the following problems in the prior art are not solved: because the speed reducer can produce heat at the during operation of making an uproar in the cover of making an uproar, the heat can not in time give off, and the heat is too high can cause the damage to the speed reducer, and occupation area is too big, and the suitability is low.

Disclosure of Invention

The present utility model is directed to a low noise planetary gear reducer, which solves the above-mentioned problems of the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the low-noise planetary gear reducer comprises a shell, wherein an input shaft and an output shaft are arranged on the side face of the shell through bearings. One end of the output shaft, which is positioned in the shell, is clamped with a coupler, and one end of the coupler, which is far away from the output shaft, is clamped with a worm gear planetary gear set. The side surface of the planetary gear set is meshed with the input shaft, and the input shaft and the output shaft are not in the same plane and vertically intersect; one end of the worm gear planetary gear set, which is far away from the output shaft, is installed with the shell through a bearing. The shell is made of lightweight materials. The input shaft adopts the worm, and the side of input shaft meshes with the worm wheel of worm wheel planetary gear set and reaches first speed reduction, and outer worm wheel drives the sun gear rotation, and the sun gear drives the planet wheel rotation, and the planet carrier drives the output shaft rotation to the output shaft rotation reaches the second speed reduction. The vibration amplitude is indirectly reduced by gradually decreasing the layers, and the noise reduction effect is realized.

According to the technical scheme, the noise reduction seat is connected inside the shell through the bolts, and the inner side of the noise reduction seat is connected with the worm gear planetary gear set through the bearings. Wherein, the contact part between the bolt and the gasket adopts a flexible gasket; the noise reduction seat is internally provided with an air layer in which sound absorbing materials are placed. The inner side of the noise reduction seat is connected with the side face of the worm gear planetary gear set through bearings, and the two noise reduction seats are respectively positioned at two ends of a worm gear of the worm gear planetary gear set. The noise reduction seat is used for fixing the worm gear planetary gear set, so that noise of the transmission device is reduced.

According to the technical scheme, the coupler comprises the first connector, the flexible piece and the second connector, and the flexible piece is positioned between the first connector and the second connector to be matched and meshed. The first connector and the second connector transmit torque; the flexible piece can well reduce the vibration between the shafts. Further reduces vibration amplitude generated by transmission and reduces noise during acting.

According to the technical scheme, the damping piece is fixedly arranged in the shell, and one end of the damping piece is fixedly connected with the noise reduction seat. The vibration absorbing piece comprises a threaded rod, a fixing seat, a rotating piece, a cavity and a movable piece, wherein the outer side of the cavity is connected with the shell in a clamping mode, one end of the threaded rod is fixedly connected with the cavity, the inner side of the rotating piece is connected with the threaded rod through threads, the outer side of the rotating piece is connected with the cavity in a sliding mode, one end of the rotating piece, far away from the threaded rod, is connected with the fixing seat through a bearing, and one end of the fixing seat, far away from the rotating piece, is fixedly connected with the noise reducing seat. The noise reduction seat is rocked to push the fixing seat to move, and the rotating piece rotates downwards. And the axial moving force is converted into the rotating force to be eliminated, so that the shock absorption is realized.

According to the technical scheme, the inner wall of the movable piece is in clearance fit with the threaded rod, the outer side of the movable piece is in transition fit with the cavity, and the movable piece is located at one end of the rotary piece, which is close to the threaded rod. The movable part is made of rubber. When the noise reduction seat suddenly vibrates greatly, the movable part rotates and cannot eliminate all force, and when the movable part reaches the bottom of the cavity, gas in the cavity is extruded, so that the downward moving process of the rotary part is slowed down. The gas then pushes the rotating body to move upwards, and the movable piece moves upwards under suction. When the rotating piece is reset, the movable piece slowly moves downwards. The damping effect is enhanced.

Compared with the prior art, the utility model has the following beneficial effects:

(1) Through being provided with casing, input shaft, output shaft, worm wheel planetary gear set, the input shaft adopts the worm, and the side of input shaft meshes with the worm wheel of worm wheel planetary gear set and reaches first speed reduction, and the worm wheel passes through sun gear drive planet wheel to the output shaft rotation reaches the second speed reduction. The vibration amplitude is indirectly reduced by gradually decreasing the layers, and the noise reduction effect is realized;

(2) The first connector and the second connector are provided with the shaft coupling to transmit torque; the flexible piece can well reduce the vibration between the shafts. Further reducing vibration amplitude generated by transmission and reducing noise during acting;

(3) Through being provided with the shock attenuation piece, the seat of making an uproar falls receives to rock, promotes the fixing base and removes, and the rotating member is rotatory to move down. And the axial moving force is converted into the rotating force to be eliminated, so that the shock absorption is realized.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall front internal structure of the present utility model;

FIG. 3 is a schematic perspective view of the coupling structure of the present utility model;

FIG. 4 is a schematic diagram of the overall side internal structure of the present utility model;

fig. 5 is a schematic perspective view of the shock absorbing member of the present utility model.

In the figure: 1. a housing; 2. an input shaft; 3. an output shaft; 4. a shock absorbing member; 41. a threaded rod; 42. a fixing seat; 43. a rotating member; 44. a cavity; 45. a movable member; 5. a coupling; 51. a first connector; 52. a second connector; 53. a flexible member; 6. a worm gear planetary gear set.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides the following technical solutions: the utility model provides a low noise planetary gear reducer, including casing 1, input shaft 2 is installed through the bearing to the side of casing 1, output shaft 3 is located the inside one end joint of casing 1 has shaft coupling 5, the one end joint that shaft coupling 5 kept away from output shaft 3 has worm wheel planetary gear set 6, worm wheel planetary gear set 6 includes the worm wheel, the ring gear, the planet wheel, the planet carrier, the sun gear, wherein one end and the worm wheel fixed connection of sun gear shaft, the one end that the worm wheel kept away from the sun gear passes through the bearing with casing 1 to be connected, the side that the sun gear kept away from the worm wheel meshes with the planet wheel, the side and the ring gear inner wall meshing of planet wheel, the one end that the planet wheel kept away from the worm wheel is fixed connection with the planet carrier, the one end that the planet carrier kept away from the planet wheel is connected with output shaft 3 through shaft coupling 5; the housing 1 is made of a lightweight material. The input shaft 2 adopts a worm, the side surface of the input shaft 2 is meshed with a worm wheel of the worm wheel planetary gear set 6 to achieve first speed reduction, the worm wheel drives a planet wheel through a sun wheel, and therefore the rotation of the output shaft achieves second speed reduction. The vibration amplitude is indirectly reduced by gradually decreasing the layers, and the noise reduction effect is realized.

As shown in fig. 1, 2 and 4, a noise reduction seat 11 is connected inside the shell 1 through bolts, and the inner side of the noise reduction seat 11 is connected with the worm gear planetary gear set 6 through a bearing; the inner side of the noise reduction seat is connected with the outer side of the inner gear ring of the worm gear planetary gear set through bearings, and the two noise reduction seats are respectively positioned at two ends of the worm gear planetary gear set. The noise reduction seat is used for fixing the worm gear planetary gear set, so that noise of the transmission device is reduced.

As shown in fig. 3, the coupling 5 includes a first connector 51, a flexible member 53, and a second connector 52, where the flexible member 53 is located between the first connector 51 and the second connector 52 for mating engagement; the first connector and the second connector transmit torque; the first connector and the second connector transmit torque; the flexible piece can well reduce the vibration between the shafts. Further reduces vibration amplitude generated by transmission and reduces noise during acting.

As shown in fig. 4 and 5, a shock absorbing member 4 is fixedly installed in the shell 1, and one end of the shock absorbing member 4 is fixedly connected with a noise reduction seat 11; the damping piece 4 comprises a threaded rod 41, a fixed seat 42, a rotating piece 43, a cavity 44 and a movable piece 45, wherein the outer side of the cavity 44 is clamped with the shell 1, one end of the threaded rod 41 is fixedly connected with the cavity 44, the inner side of the rotating piece 43 is connected with the threaded rod 41 through threads, the outer side of the rotating piece 43 is slidably connected with the cavity 44, one end of the rotating piece 43, which is far away from the threaded rod 41, is connected with the fixed seat 42 through a bearing, and one end of the fixed seat 42, which is far away from the rotating piece 43, is fixedly connected with the noise reduction seat 11; the noise reduction seat is rocked to push the fixing seat to move, and the rotating piece rotates downwards. And the axial moving force is converted into the rotating force to be eliminated, so that the shock absorption is realized.

The inner wall of the movable member 45 is in clearance fit with the threaded rod 41, the outer side of the movable member 45 is in transition fit with the cavity 44, and the movable member 45 is positioned at one end of the rotary member 43 close to the threaded rod 41. The movable part is made of rubber. When the noise reduction seat suddenly vibrates greatly, the movable part rotates and cannot eliminate all force, and when the movable part reaches the bottom of the cavity, gas in the cavity is extruded, so that the downward moving process of the rotary part is slowed down. The gas then pushes the rotating body to move upwards, and the movable piece moves upwards under suction. When the rotating piece is reset, the movable piece slowly moves downwards. The damping effect is enhanced.

Working principle: the input shaft 2 is rotated through an external motor, the input shaft 2 is meshed with a worm wheel of the worm wheel planetary gear set 6, the first-stage speed reduction is realized, the worm wheel drives the pinion to rotate, and the sun gear rotates along with the pinion, so that the second-stage speed reduction is realized. The sun gear shaft drives the first connector 51 to rotate, the second connector 52 is meshed to drive the output shaft 3 to rotate, and the flexible piece 53 reduces vibration among shafts.

When the noise reduction seat 11 suddenly shakes greatly, the fixed seat 42 is pushed to move, the rotating piece 43 rotates downwards to remove the force, the movable piece 45 rotates and cannot remove all the force, and when the movable piece 45 reaches the bottom of the cavity 44, the air in the cavity 44 is extruded, so that the downwards moving process of the rotating piece 43 is slowed down. After the pressing to the critical value, the gas pushes the rotating member 43 upward, and the movable member 45 is moved upward by suction. When the rotating member 43 is reset, the movable member 45 is slowly moved down; the damping effect is enhanced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A low noise planetary gear reducer, comprising a housing (1), characterized in that: the utility model discloses a motor drive device, including casing (1), input shaft (2), output shaft (3) are installed through the bearing to the side of casing (1), output shaft (3) are located inside one end joint of casing (1) has shaft coupling (5), one end joint that output shaft (3) was kept away from to shaft coupling (5) has worm wheel planetary gear set (6), worm wheel planetary gear set (6) side and input shaft (2) meshing, input shaft (2) and output shaft (3) are not at coplanar and intersect perpendicularly, one end that output shaft (3) was kept away from to worm wheel planetary gear set (6) is installed through the bearing with casing (1).

2. A low noise planetary gear reducer according to claim 1, characterized in that: the inside of the shell (1) is connected with a noise reduction seat (11) through bolts, and the inner side of the noise reduction seat (11) is connected with a worm gear planetary gear set (6) through a bearing.

3. A low noise planetary gear reducer according to claim 2, characterized in that: the coupling (5) comprises a first connector (51), a flexible piece (53) and a second connector (52), wherein the flexible piece (53) is positioned between the first connector (51) and the second connector (52) to be matched and meshed.

4. A low noise planetary gear reducer according to claim 1, characterized in that: the novel noise reduction device is characterized in that a shock absorbing piece (4) is fixedly installed inside the shell (1), and one end of the shock absorbing piece (4) is fixedly connected with a noise reduction seat (11).

5. A low noise planetary gear reducer according to claim 4, characterized in that: the vibration absorbing component (4) comprises a threaded rod (41), a fixed seat (42), a rotating component (43), a cavity (44) and a movable component (45), wherein the outer side of the cavity (44) is clamped with the shell (1), one end of the threaded rod (41) is fixedly connected with the cavity (44), the inner side of the rotating component (43) is connected with the threaded rod (41) through threads, the outer side of the rotating component (43) is connected with the cavity (44) in a sliding mode, one end, far away from the threaded rod (41), of the rotating component (43) is connected with the fixed seat (42) through a bearing, and one end, far away from the rotating component (43), of the fixed seat (42) is fixedly connected with the noise reducing seat (11).

6. A low noise planetary gear reducer according to claim 5, characterized in that: the inner wall of the movable piece (45) is in clearance fit with the threaded rod (41), the outer side of the movable piece (45) is in transition fit with the cavity (44), and the movable piece (45) is located at one end, close to the threaded rod (41), of the rotary piece (43).