CN217814873U

CN217814873U - Speed reducer and speed reduction motor

Info

Publication number: CN217814873U
Application number: CN202221973809.9U
Authority: CN
Inventors: 高岑晖; 郑秀谦; 龚圆杰; 张涛; 赵保文; 宋华; 詹犇
Original assignee: Chunmi Technology Shanghai Co Ltd; Guangdong Chunmi Electrical Technology Co Ltd
Current assignee: Chunmi Technology Shanghai Co Ltd; Guangdong Chunmi Electrical Technology Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-15
Anticipated expiration: 2032-07-28

Abstract

The utility model provides a speed reducer and a speed reducing motor, wherein the speed reducer comprises a shell, an input gear, a gear ring, a support ring assembly and an output gear; the shell is provided with a first sliding groove; the input gear is disposed within the housing, wherein the first runner is disposed around the input gear; the gear rings are arranged around the input gear at intervals; the support ring assembly comprises a support ring and balls, the support ring is arranged between the input gear and the gear ring, a second sliding groove is formed in the support ring, the first sliding groove and the second sliding groove jointly form a guide channel, and the balls are arranged in the guide channel in a rolling mode; the output gear is rotatably arranged on the support ring, and the output gear is meshed between the input gear and the gear ring. By the technical scheme, the technical problem that the whole size is large after the speed reducer is assembled with the motor due to the large axial size of the speed reducer in the prior art is solved.

Description

Speed reducer and speed reduction motor

Technical Field

The utility model relates to a technical field of reduction gear especially relates to a reduction gear and gear motor.

Background

In the prior art, the speed reducer for the bionic robot is generally a rotation vector speed reducer and a harmonic speed reducer. The axial size of the rotary vector speed reducer and the harmonic speed reducer is larger, the whole size is larger after the rotary vector speed reducer and the harmonic speed reducer are matched with a motor, the rotary vector speed reducer is not suitable for a bionic robot, and the development of the robot technology can be restricted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduction gear and gear motor to solve among the prior art because of the big technical problem who leads to with the motor assembly back whole volume great of the axial dimensions of reduction gear.

In a first aspect, the present invention provides a speed reducer, the speed reducer includes:

a housing formed with a first chute;

an input gear disposed within the housing, wherein the first runner is disposed around the input gear;

gear rings arranged around the input gear at intervals;

the support ring assembly comprises a support ring and a ball, the support ring is arranged between the input gear and the gear ring, a second sliding groove is formed in the support ring, the first sliding groove and the second sliding groove jointly form a guide channel, and the ball is arranged in the guide channel in a rolling mode;

the output gear is rotatably arranged on the support ring and is meshed between the input gear and the gear ring.

As an embodiment of the present invention, the support ring is formed with a first connection hole;

the output gear comprises a gear part and a first connecting column formed by protruding from one side of the gear part, and the first connecting column extends into the first connecting hole;

the speed reducer further comprises a first rolling bearing arranged in the first connecting hole, and the first rolling bearing is sleeved on the first connecting column.

As an embodiment of the present invention, the output gear is provided in plurality;

the reduction gear still includes the output, and is a plurality of the output gear keep away from the one end of support ring all with the output rotates the connection.

As an embodiment of the utility model, the reduction gear still includes the connecting piece, the one end of connecting piece with the support ring is connected, the other end of connecting piece with output spare is connected.

As an embodiment of the present invention, the housing is formed with a relief hole;

the output piece comprises an output part and a connecting part formed by protruding from the outer peripheral side of the output part, wherein the output part is located in the avoiding hole, and the connecting part is connected with the plurality of output gears.

As an embodiment of the utility model, the reduction gear still includes second antifriction bearing, second antifriction bearing presss from both sides and establishes output with between the pore wall in dodge the hole.

As an embodiment of the present invention, the connecting portion is formed with a second connecting hole;

the output gear further comprises a second connecting column formed by protruding from the other side of the gear part, and the second connecting column extends into the second connecting hole;

the speed reducer further comprises a third rolling bearing arranged in the second connecting hole, and the third rolling bearing is sleeved on the second connecting column.

As an embodiment of the present invention, the housing includes a bottom plate and a cover shell disposed on the bottom plate; the bottom plate forms the first runner.

As an embodiment of the utility model, the protruding fixed part that forms of periphery side of ring gear, the fixed part clamp is established the bottom plate with between the lid shell.

In a second aspect, the present invention provides a reduction motor, the reduction motor includes a motor and a speed reducer as in the first aspect, a power output end of the motor and an input gear of the speed reducer are connected.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

in the utility model, the power output end of the motor is connected with the input gear of the reducer, when the motor starts to work, the power output end of the motor drives the input gear to rotate, and the output gear is meshed between the input gear and the gear ring, so that the output gear rotates along the peripheral side of the input gear under the driving of the input gear and outputs the rotating power of the output gear, thereby realizing the speed reduction of the motor; in addition, the shell is provided with a first sliding chute, and the speed reducer further comprises a support ring assembly, wherein the support ring is arranged between the input gear and the gear, so that the output gear can be rotatably arranged on the support ring; and set up the first spout on the casing, set up the second spout on the support ring, make first spout and second spout form jointly and set up the guide way around the input gear, the rollable setting of ball is in the guide way, therefore, the support ring can rotate along the week side of input gear, and then can support the stable rotation of output gear along the week side of input gear. The utility model discloses form a plane thrust bearing structure with the casing that has first spout, the support ring that has the second spout, ball jointly to support output gear stable smooth and easy rotation, guaranteed that the reduction gear atress is steady, avoid the reduction gear to additionally use the bearing standard component that the size is great; by the technical scheme, the technical problem that the whole size is large after the speed reducer is assembled with the motor due to the large axial size of the speed reducer in the prior art is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a speed reduction motor according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a speed reduction motor according to an embodiment of the present invention;

fig. 3 is a cross-section of a reduction motor according to an embodiment of the present invention;

fig. 4 is another cross section of the reduction motor according to an embodiment of the present invention.

Wherein: 100. a reduction motor; 10. a speed reducer; 101. a housing; 1011. a base plate; 10111. a first chute; 1012. a cover shell; 10121. avoiding holes; 102. an input gear; 103. a ring gear; 1031. a fixed part; 104. a support ring assembly; 1041. a support ring; 10412. a first connection hole; 1042. a ball bearing; 105. an output gear; 1051. a gear portion; 1052. a first connecting column; 1053. a second connecting column; 106. a first rolling bearing; 107. an output member; 1071. an output section; 1072. a connecting portion; 10721. a second connection hole; 108. A connecting member; 109. a second rolling bearing; 110. a third rolling bearing; 20. an electric motor.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, the present invention provides a geared motor 100, in which the geared motor 100 includes a motor 20 and a reducer 10, and a power output end of the motor 20 is connected to an input end of the reducer 10, so as to reduce the speed of an output of the motor 20.

Referring to fig. 1-4, the speed reducer 10 includes a housing 101, an input gear 102, a ring gear 103, a support ring assembly 104, and an output gear 105; the housing 101 is formed with a first slide groove 10111; the input gear 102 is disposed in the housing 101, wherein the first sliding groove 10111 is disposed around the input gear 102; the gear rings 103 are arranged around the input gear 102 at intervals; the support ring assembly 104 comprises a support ring 1041 and a ball 1042, the support ring 1041 is disposed between the input gear 102 and the ring gear 103, the support ring 1041 is formed with a second sliding slot, the first sliding slot 10111 and the second sliding slot together form a guide channel, and the ball 1042 is rollably disposed in the guide channel; the output gear 105 is rotatably disposed on the support ring 1041, and the output gear 105 is engaged between the input gear 102 and the ring gear 103.

In the present invention, the power output end of the motor 20 is connected to the input gear 102 of the speed reducer 10, when the motor 20 starts to work, the power output end of the motor 20 drives the input gear 102 to rotate, the output gear 105 is engaged between the input gear 102 and the gear ring 103, therefore, the output gear 105 rotates along the peripheral side of the input gear 102 under the driving of the input gear 102, and outputs the rotation power of itself, thereby realizing the speed reduction of the motor 20; in addition, the housing 101 is formed with a first slide slot 10111, and the reducer 10 further includes a support ring assembly 104, the support ring 1041 is disposed between the input gear 102 and the ring gear 103, so that the output gear 105 can be rotatably disposed on the support ring 1041; the housing 101 is provided with a first sliding slot 10111, the support ring 1041 is provided with a second sliding slot, so that the first sliding slot 10111 and the second sliding slot together form a guide channel surrounding the input gear 102, and the balls 1042 are rollably disposed in the guide channel, therefore, the support ring 1041 can rotate along the circumferential side of the input gear 102, and further can support the output gear 105 to stably rotate along the circumferential side of the input gear 102. The utility model discloses the casing 101 that will have first spout 10111, the support ring 1041 that has the second spout, ball 1042 form a plane thrust bearing structure jointly to support output gear 105 and stabilize smooth and easy rotation, guaranteed that reduction gear 10 atress is steady, avoid reduction gear 10 additionally to use the bearing standard component that the size is great; by applying the technical scheme, the technical problem that the whole size is larger after the speed reducer 10 is assembled with the motor 20 due to the large axial size in the prior art is solved.

In some specific embodiments, referring to fig. 2, the first sliding grooves 10111 may be one or a plurality of ones, and when the first sliding grooves 10111 are one, the first sliding grooves 10111 are annular to be disposed around the input gear 102; when the first sliding grooves 10111 are plural, the first sliding grooves 10111 are arc-shaped, and the plural first sliding grooves 10111 form a circular ring shape together.

In some specific embodiments, one or more second sliding grooves may be provided, and when one second sliding groove is provided, the second sliding groove is annular to correspond to the first sliding groove 10111; when the second sliding grooves are multiple, the second sliding grooves are arc-shaped, and the multiple second sliding grooves jointly form a circular ring shape to correspond to the first sliding groove 10111.

In one embodiment, referring to fig. 2 and 4, the support ring 1041 is formed with a first connection hole 10412; the output gear 105 includes a gear portion 1051 and a first coupling post 1052 formed protruding from one side of the gear portion 1051, the first coupling post 1052 extends into the first coupling hole 10412; the reducer 10 further includes a first rolling bearing 106 disposed in the first connection hole 10412, and the first rolling bearing 106 is sleeved on the first connection column 1052.

In the present embodiment, the first rolling bearing 106 and the support ring 1041 form a rolling pair, and the first rolling bearing 106 and the first connection column 1052 form another rolling pair, so that the first rolling bearing 106 supports the smooth and stable rotation of the output gear 105 on the support ring 1041 by supporting the smooth and stable rotation of the first connection column 1052, so as to ensure the engagement of the output gear 105 with the input gear 102 and the ring gear 103.

In some specific embodiments, the first connection hole 10412 is a stepped hole, wherein when the first rolling bearing 106 is installed in the first connection hole 10412, the first rolling bearing 106 is not assembled in place until the first rolling bearing 106 abuts against a stepped surface of the first connection hole 10412, and the first rolling bearing 106 is supported by the stepped surface of the first connection hole 10412.

In one embodiment, referring to fig. 2-4, the output gear 105 is plural; the reducer 10 further includes an output member 107, and one end of each of the plurality of output gears 105, which is far away from the support ring 1041, is rotatably connected to the output member 107.

In the present embodiment, a plurality of output gears 105 are engaged between the input gear 102 and the ring gear 103, thereby ensuring the smoothness of the reducer 10; based on this, the speed reducer 10 still includes output 107, and the one end that a plurality of output gears 105 kept away from the support all is connected with output 107 rotation, therefore, the rotational power of a plurality of output gears 105 all concentrates output 107 and exports, has guaranteed the smooth output of speed reduction power.

In one embodiment, referring to fig. 2 and 4, the reducer 10 further includes a connector 108, one end of the connector 108 is connected to the support ring 1041, and the other end of the connector 108 is connected to the output member 107.

In this embodiment, a connecting member 108 is added, and the support ring 1041 at both ends of the output gear 105 and the output member 107 are connected together by the connecting member 108, so that the relative stability among the support ring 1041, the output gear 105 and the output member 107 is improved.

Referring to fig. 2 to 4, the housing 101 is formed with an escape hole 10121; the output member 107 includes an output portion 1071 and a connecting portion 1072 formed to protrude from an outer circumferential side of the output portion 1071, wherein the output portion 1071 is located in the relief hole 10121, and the connecting portion 1072 is connected to the plurality of output gears 105.

Specifically, the connection portion 1072 is connected to the output gear 105 to receive the power of the output gear 105, and then transmitted through the output portion 1071 located at the middle portion; in the present embodiment, the output member 107 is provided with the output portion 1071 located at the middle portion and the connection portion 1072 located at the peripheral portion, so that the connection portion 1072 can stably receive the power of the output gear 105 and the output portion 1071 can stably output the decelerated power in accordance with the positional structure between the input gear 102 and the output gear 105.

In one embodiment, referring to fig. 2 to 4, the reducer 10 further includes a second rolling bearing 109, and the second rolling bearing 109 is interposed between the output portion 1071 and the hole wall of the avoiding hole 10121.

In this embodiment, the second rolling bearing 109 forms a rolling pair with the housing 101, and the second rolling bearing 109 forms another rolling pair with the output portion 1071, so that the second rolling bearing 109 supports the output portion 1071 to smoothly and stably rotate, thereby ensuring stable output of power.

In one embodiment, referring to fig. 2 and 4, the connection portion 1072 is formed with a second connection hole 10721; the output gear 105 further includes a second connection post 1053 formed to protrude from the other side of the gear portion 1051, the second connection post 1053 extending into the second connection hole 10721; the speed reducer 10 further includes a third rolling bearing 110 disposed in the second connection hole 10721, and the third rolling bearing 110 is sleeved on the second connection column 1053.

In the present embodiment, the third rolling bearing 110 and the connecting portion 1072 form a rolling pair, and the third rolling bearing 110 and the second connecting column 1053 form another rolling pair, so that the third rolling bearing 110 supports the output gear 105 and the connecting portion 1072 for stable and smooth rotatable connection by supporting the smooth and stable rotation of the second connecting column 1053.

In some specific embodiments, the second connection hole 10721 is a stepped hole, wherein the assembly in place is not indicated until the third rolling bearing 110 abuts against the stepped surface of the second connection hole 10721 when the third rolling bearing 110 is installed into the second connection hole 10721, the third rolling bearing 110 being supported by the stepped surface of the second connection hole 10721.

Referring to fig. 2 to 4, the housing 101 includes a base plate 1011 and a cover 1012 disposed on the base plate 1011; the bottom plate 1011 forms the first slide groove 10111, and the escape hole 10121 is formed by the cover housing 1012. By splitting the housing 101 into the base plate 1011 and the cover 1012, it is convenient to assemble the input gear 102, the ring gear 103, the support ring assembly 104, the output gear 105, the output member 107, and the like into the housing 101 one by one.

In some specific embodiments, referring to fig. 2-4, the outer circumference of the gear ring 103 protrudes to form a fixing portion 1031, and the fixing portion 1031 is sandwiched between the bottom plate 1011 and the cover housing 1012, so as to realize stable arrangement of the gear ring 103 in the housing 101.

In some embodiments, the base plate 1011, the cover housing 1012, and the fixing portion 1031 may be fixed together by screws.

The above embodiments are only used to illustrate the technical solutions of the present invention, and do not limit the protection scope of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from these embodiments without any inventive step, are within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still make no creative work on the condition of conflict, and make mutual combination, addition and deletion, or other adjustments according to the features in the embodiments of the present invention, thereby obtaining other technical solutions which are different and do not depart from the concept of the present invention, and these technical solutions also belong to the scope to be protected by the present invention.

Claims

1. A speed reducer, comprising:

a housing formed with a first chute;

gear rings arranged around the input gear at intervals;

2. The speed reducer of claim 1, wherein the support ring is formed with a first connection hole;

3. The reducer according to claim 2, wherein said output gear is plural;

4. The speed reducer of claim 3, further comprising a connector, one end of the connector being connected to the support ring and the other end of the connector being connected to the output member.

5. A decelerator according to claim 3, wherein the housing is formed with a relief hole;

6. The reducer according to claim 5, further comprising a second rolling bearing interposed between the output portion and a hole wall of the avoiding hole.

7. The decelerator according to claim 5, wherein the connecting portion is formed with a second connecting hole;

8. The speed reducer of claim 1, wherein the housing comprises a base plate and a cover shell disposed on the base plate; the bottom plate forms the first runner.

9. The decelerator according to claim 8, wherein an outer peripheral side projection of the ring gear forms a fixing portion interposed between the bottom plate and the cover shell.

10. A geared motor comprising a motor and a gear reducer according to any one of claims 1-9, the power take-off of the motor being connected to the input gear of the gear reducer.