CN215334065U - Speed reducer capable of high-speed clutch braking - Google Patents
Speed reducer capable of high-speed clutch braking Download PDFInfo
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- CN215334065U CN215334065U CN202121029614.4U CN202121029614U CN215334065U CN 215334065 U CN215334065 U CN 215334065U CN 202121029614 U CN202121029614 U CN 202121029614U CN 215334065 U CN215334065 U CN 215334065U
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Abstract
The utility model discloses a speed reducer capable of high-speed clutch braking, wherein the speed reducer comprises a shell, a clutch and a driving wheel. The shell is provided with a through shaft. The clutch comprises a first pushing element, a first impeller and a flange plate which are sleeved on the through shaft in sequence, and mutually matched first transmission components are arranged on the opposite sides of the first impeller and the flange plate. The driving wheel is sleeved on the through shaft and is fixedly connected with one side, far away from the first impeller, of the flange plate, so that in the rotating process of the driving wheel, the first impeller and the flange plate are in transmission connection through the first transmission component, and therefore the through shaft can be driven to rotate through the first impeller. The clutch controls the transmission and separation of the driving wheel and the through shaft of the speed reducer, and controls the input or disconnection of external power to the speed reducer, thereby controlling the output end of the speed reducer.
Description
Technical Field
The utility model relates to the field of mechanical transmission, in particular to a speed reducer capable of high-speed clutch braking.
Background
The reducer is an independent component consisting of gear drive or worm drive enclosed in a rigid shell, and is often used as a reduction transmission device between a prime mover and a working machine. The speed reducer plays a role in matching rotating speed and transmitting torque between the prime mover and the working machine or the actuating mechanism, and is a relatively precise machine. Its purpose is to reduce the speed and increase the torque.
The speed reducer is provided with a through shaft and an output end, an external motor is in transmission connection with the through shaft, the power of the motor is input into the speed reducer, and the power is output through the output end of the speed reducer, so that the purpose of reducing the rotating speed of the motor is achieved. The existing speed reducer does not have the functions of clutch and brake. When the speed reducer has problems and needs to be maintained, the speed reducer can only be maintained in a mode of stopping the motor, and the motor is stopped and started for multiple times, so that the service life of the motor is easily shortened.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a speed reducer capable of high-speed clutch braking, which can control the transmission and separation of a driving wheel and a through shaft of the speed reducer through a clutch, control the input or disconnection of external power to the speed reducer and further control the output end of the speed reducer.
Another object of the present invention is to provide a speed reducer capable of high-speed clutch braking, in which the first transmission member is a friction plate, so that the first impeller and the flange plate are in transmission connection by friction, and the stability of transmission connection between the driving wheel and the through shaft is improved.
Another object of the present invention is to provide a speed reducer capable of high-speed clutch braking, which can quickly reduce the rotation speed of the through shaft of the speed reducer through a brake, so as to quickly brake the output end of the speed reducer, thereby realizing quick braking.
Another object of the present invention is to provide a speed reducer capable of high-speed clutch braking, in which the second transmission member is a gear, and the second pushing element and the second impeller are geared to each other, so that the stability of the connection between the second pushing element and the second impeller is improved, and the output end of the speed reducer can be rapidly braked.
In order to achieve at least one of the above objects, the present invention provides a speed reducer capable of high-speed clutch braking, wherein the speed reducer comprises a housing, a clutch and a driving wheel.
The shell is provided with a through shaft.
The clutch comprises a first pushing element, a first impeller and a flange plate, wherein the first pushing element, the first impeller and the flange plate are sequentially sleeved on the through shaft, the first impeller is directionally and movably arranged on the through shaft along the axial direction of the through shaft, the flange plate is rotatably arranged on the through shaft, and opposite sides of the first impeller and the flange plate are respectively provided with a first transmission component which is matched with each other.
The driving wheel is sleeved on the through shaft and fixedly connected with one side, far away from the first impeller, of the flange plate, so that in the rotating process of the driving wheel, the output end of the first pushing element can push the first impeller to be close to the flange plate, and the first driving member can drive the through shaft to rotate synchronously through the first impeller under the transmission action of the first driving member.
The clutch further comprises an elastic resetting piece, wherein the elastic resetting piece is arranged between the first impeller and the flange plate so as to reset the first impeller after the first impeller is pushed.
The first pushing element comprises a fixing part, an air cylinder and a first piston which are sequentially arranged on the through shaft, the fixing part is fixedly arranged on the through shaft, one side of the air cylinder, which is close to the first piston, is provided with a first accommodating groove, one end of the first piston extends into the first accommodating groove and forms a first pushing cavity with the first accommodating groove, the other end of the first piston is rotatably connected with the fixing part, one side of the air cylinder, which is far away from the first piston, is rotatably connected with the first impeller, the first piston is provided with a first air inlet channel communicated with the first pushing cavity, so that after an air source enters the first pushing cavity through the first air inlet pipeline, the first driving component on the first impeller can be pushed to be in driving connection with the first driving component on the flange plate, thereby enabling the first impeller to drive the through shaft to rotate.
And a sealing ring is embedded on the side surface of the first piston, which is contacted with the first accommodating groove.
The first transmission member is a friction plate transmission member.
The first transmission member is a gear transmission member.
The brake comprises a second pushing element and a second impeller, wherein the second pushing element is rotatably arranged on the through shaft, the second impeller is fixedly arranged on the through shaft, the output end of the second pushing element and the side surface of the second impeller are respectively provided with a second transmission component which is matched with each other, so that when the output end of the second pushing element is close to the second impeller, the second impeller is braked through the transmission action of the two second transmission components, and the rotating friction force of the through shaft is increased.
The second pushing element comprises a cylinder seat and a second piston, the cylinder seat is fixedly arranged on the shell, a second accommodating groove with an opening facing the second impeller is formed in the cylinder seat, the second piston is positioned in the second accommodating groove and forms a second pushing cavity with the second accommodating groove, a second air inlet channel communicated with the second accommodating groove is formed in the cylinder seat, one of the two second transmission members is arranged on the second piston, the other second transmission member is arranged on the second impeller, so that after an air source enters the second pushing cavity through the second air inlet channel, the second piston is close to the second impeller, the two second transmission members can be matched with each other and are in transmission connection with the second impeller through the second piston, thereby increasing the friction force of the rotation of the through shaft.
The second transmission member is a friction plate transmission member.
The second transmission member is a gear transmission member.
Drawings
FIG. 1 is a schematic structural diagram of a high-speed clutch-braking speed reducer of the utility model;
FIG. 2 shows a half-sectional view of the clutch of the present invention;
FIG. 3 shows a half-sectional view of the brake of the present invention;
figure 4 shows a side view of the reducer of the present invention.
Detailed Description
The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 to 4, a reduction gear capable of high-speed clutch braking according to a preferred embodiment of the present invention will be explained in detail below, wherein the reduction gear includes a housing 10, a clutch 20 and a driving wheel 30.
The housing 10 is provided with a through shaft 11.
The clutch 20 includes a first pushing element 21, a first impeller 22 and a flange 23, which are sequentially sleeved on the through shaft 11. The flange 23 is rotatably connected to the through-shaft 11 by a precision bearing 60. The first pushing element 21 is fixedly arranged on the through shaft 11. The first impeller 22 is disposed on the through shaft 11 in an axially movable manner along the through shaft 11 by means of a shaft key and a key groove, so that the first impeller 22 can rotate along with the through shaft 11. The output end of the first pushing element 21 faces the flange 23, and opposite sides of the first impeller 22 and the flange 23 are provided with mutually cooperating first transmission members 24.
The driving wheel 30 is fixedly arranged on one side, far away from the first impeller 22, of the flange plate 23 through bolts, the flange plate 23 is rotatably connected with the through shaft 11 through a precision bearing 60, the driving wheel 30 is rotatably connected with the through shaft 11 through the precision bearing 60, and the driving wheel 30 cannot drive the through shaft 11 to rotate. The driving wheel 30 is in transmission connection with an external motor in a belt transmission manner, when external power needs to be input into the speed reducer, namely in the rotation process of the driving wheel 30, the first pushing element 21 pushes the first transmission member 24 on the first impeller 22 to be close to the first transmission member 24 on the flange 23, so that the two first transmission members 24 are mutually matched, the first impeller 22 is in transmission connection with the flange 23, the through shaft 11 is in transmission connection with the driving wheel 30, and the first impeller 22 can drive the through shaft 11 to rotate, so that whether the external power is input into the speed reducer or not can be controlled, and the output end of the speed reducer is controlled. The external power source that needs to stop to come to maintain the speed reducer in the trouble appears on the speed reducer originally, only need just can realize the control to the speed reducer output through the clutch on the speed reducer now, has brought very big convenience for the industry transmission.
The clutch further comprises an elastic resetting piece 26, the elastic resetting piece 26 is sleeved on the through shaft 11, and the elastic resetting piece 26 is arranged between the first impeller 22 and the flange 23 so as to reset the first impeller 22 after the first impeller 22 is pushed.
The return element 26 may be embodied as a spring. The spring is sleeved on the through shaft 11, one end of the spring abuts against the first impeller 22, and the other end of the spring abuts against the flange plate 23. When the first impeller 22 is pushed by the first pushing element 21, the first impeller 22 compresses the spring during the movement, and the spring stores the thrust force as elastic potential energy. After the thrust force on the first pushing element 21 disappears, the elastic potential energy on the spring restores the first impeller 22. The purpose of the spring to return the first impeller 22 after the first impeller 22 has been pushed is thereby achieved.
The clutch 20 further comprises a shaft tube 27, the shaft tube 27 is fixedly arranged on the through shaft 11, and the first impeller 22 is arranged on the shaft tube 27 in an orientation movable manner through the matching of a shaft key and a key slot, so that the first impeller 22 can slide on the shaft tube 27 and can also rotate along with the shaft tube 27.
The first pushing member 21 includes a fixing member 211, a first piston 212, and a cylinder 213, which are sequentially disposed on the shaft tube 27. The fixing piece 211 comprises a round nut 2111 and a pressing ring 2112, the round nut 2111 is in threaded connection with the shaft tube 27, and the pressing ring 2112 abuts against the first piston 212 through the round nut 2111, so that the pressing ring 2112 is fixed on the shaft tube 27. The cylinder 213 has a first receiving groove 2101 on a side thereof adjacent to the first piston 212. One end of the first piston 212 extends into the first receiving groove 2101 and forms a first pushing cavity 2102 with the first receiving groove 2101. The other end of the first piston 212 is rotatably connected to the pressure ring 2112 via a precision bearing 60. The side of the cylinder 213 remote from the first piston 212 is rotatably connected to the first impeller 22 by a precision bearing 60. The first piston 212 has a first inlet port 2103 communicating with the first push chamber 2102. After the air source enters the first pushing cavity 2102 through the first air inlet pipeline 2103, the volume of the first pushing cavity 2102 can be changed to push the first impeller 22 to contact with the flange 23, so that the two first transmission members are in transmission fit with each other, and under the condition that the driving wheel 30 rotates, the first impeller 22 drives the through shaft 11 to rotate.
After the air source enters the first pushing cavity 2102, the air source increases the internal volume of the first pushing cavity 2102, the distance between the first piston 212 and the inside of the air cylinder 213 is changed, and the first impeller 22 can move on the shaft tube 27 through a shaft key, so that the first impeller 22 can be pushed to move.
A sealing ring 214 is embedded on the side wall of the first piston 212 contacting with the first accommodating groove 2101.
The first piston 212 contacts the inner wall of the first receiving groove 2101 via the sealing ring 214, so that the airtightness of the first push chamber 2102 is improved, and the first piston 212 can stably move in the first receiving groove 2101.
The first transmission member 24 is a friction plate transmission member, and the first impeller 22 and the flange 23 can realize transmission at high speed by adopting a friction plate transmission connection mode.
The first transmission member 24 is a gear transmission member, and the stability of the transmission of the first impeller 22 and the flange 23 can be improved by adopting gear transmission.
The reducer also includes a brake 40. The stopper 40 includes a second pushing member 41, a top plate 42, and a second impeller 43, which are sequentially provided to the through shaft 11. The second impeller 43 is fixed to the through shaft 11. The output end of the second pushing element 41 faces the second impeller 43, the second pushing element 41 is fixedly arranged on the housing 10, and the second pushing element 41 is rotatably connected with the through shaft 11 through a precision bearing 60. The output end of the second pushing element 41 and the side surface of the second impeller 43 are provided with second transmission members 44 which are matched with each other, so that the output end of the second pushing element 41 is close to the second impeller 43, the two second transmission members 44 are used for connecting the second pushing element 41 and the second impeller 43 in a transmission manner, and the second pushing element 41 is connected with the second impeller 43 in a transmission manner, so that the rotating friction force of the through shaft 11 can be increased.
After the external power stops being input into the speed reducer, the output end of the speed reducer still rotates by means of inertia. The top plate 42 is pushed by the second pushing element 41 to contact with the second impeller 43, the second pushing element 41 is fixedly arranged on the housing 10, the second impeller 43 rotates along with the through shaft 11, and two second transmission members 44 are used for connecting the second impeller 43 and the second pushing element 41 in a transmission manner through the output end of the second pushing element 41, so that the rotating friction force of the through shaft 11 can be increased, the through shaft 11 of the speed reducer can be quickly braked, and the output shaft of the speed reducer can be braked. Meanwhile, when the rotating speed of the output end of the speed reducer needs to be reduced, the two second transmission components 44 enable the second impeller 43 and the second pushing element 41 to be in transmission connection to brake the second impeller 43, so that the rotating speed of the through shaft 11 can be reduced, and the rotating speed of the output end of the speed reducer can be reduced.
The second pushing element 41 includes a cylinder block 411 and a second piston 412, wherein the cylinder block 411 is fixedly disposed on the housing 10, the cylinder block 411 is provided with a precision bearing 60 connected to the through shaft 11, and a second receiving groove 4101 with an opening facing the second impeller 43 is disposed inside the cylinder block 411. The second piston 412 is located inside the second receiving groove 4101 and forms a second push chamber 4102 with the second receiving groove 4101, the cylinder block 411 is provided with a second air inlet passage 4103 communicating with the second receiving groove 4101, the top plate 42 is fixedly provided on the second piston 412, one of the two second transmission members 44 is provided on the top plate 42, and the other second transmission member 44 is provided on the second impeller 43, so that after an air source enters the second push chamber 4102 through the second air inlet passage 4103, the second piston 412 approaches the second impeller 43 to enable the two second transmission members 44 to cooperate with each other, and the second piston 412 is in transmission connection with the second impeller 43 to brake the second impeller 43, thereby increasing the friction force of the rotation of the through shaft 11.
After the air source enters the second pushing chamber 4102, the second piston 412 is pushed by the internal air pressure, so that the second transmission member 44 on the top plate 42 is matched with the second transmission member 44 on the second impeller 43, and the top plate 42 is in transmission connection with the second impeller 43, thereby increasing the resistance of the through shaft 11 during rotation, and further reducing the rotation speed of the output end of the speed reducer.
The second transmission member 44 is a friction plate transmission member, and the second impeller 43 and the top plate 42 can realize transmission at high speed by adopting a friction plate transmission connection mode.
The second transmission member 44 is a gear transmission member, and the stability of the transmission between the second impeller 43 and the top plate 42 can be improved by using the gear transmission.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are given by way of example only and are not limiting of the utility model. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. A reduction gear that can high-speed separation and reunion braking, its characterized in that, wherein the reduction gear includes:
the shell is provided with a through shaft;
a clutch including a first pushing member, a first impeller and a flange plate, which are sequentially sleeved on the through shaft, wherein the first impeller is directionally and movably arranged on the through shaft along the axial direction of the through shaft, the flange plate is rotatably arranged on the through shaft, and opposite sides of the first impeller and the flange plate are respectively provided with a first transmission member which is matched with each other; and
the driving wheel is sleeved on the through shaft and is fixedly connected with one side, far away from the first impeller, of the flange plate, so that in the rotating process of the driving wheel, the output end of the first pushing element can push the first impeller to be close to the flange plate, and the first driving member can drive the through shaft to rotate synchronously under the driving action of the first driving member through the first impeller.
2. The reduction gear of claim 1, wherein the clutch further comprises an elastic reset member disposed between the first impeller and the flange to reset the first impeller after the first impeller is pushed.
3. The reduction gear box capable of high-speed clutch braking according to claim 2, wherein the first pushing element comprises a fixing member, a cylinder and a first piston, which are sequentially disposed on the through shaft, the fixing member is fixedly disposed on the through shaft, one side of the cylinder close to the first piston is provided with a first receiving slot, one end of the first piston extends into the first receiving slot and forms a first pushing cavity with the first receiving slot, the other end of the first piston is rotatably connected to the fixing member, one side of the cylinder far away from the first piston is rotatably connected to the first impeller, the first piston is provided with a first air inlet channel communicated with the first pushing cavity so as to push the first transmission member on the first impeller to be in transmission connection with the first transmission member on the flange plate after an air source enters the first pushing cavity through the first air inlet pipeline, thereby enabling the first impeller to drive the through shaft to rotate.
4. The reducer capable of realizing high-speed clutching and braking according to claim 3, wherein a sealing ring is embedded in a side wall of the first piston, which is in contact with the first accommodating groove.
5. A speed reducer capable of high-speed clutching and braking according to any one of claims 1 to 4, wherein the first transmission member is a friction plate transmission member.
6. A reducer with high-speed clutch and brake functions as claimed in any one of claims 1 to 4, wherein the first transmission member is a gear transmission member.
7. The high-speed clutchable-and-brakable reducer according to claim 1, wherein the reducer further comprises:
and the brake comprises a second pushing element and a second impeller, wherein the second pushing element is rotatably arranged on the through shaft, the second impeller is fixedly arranged on the through shaft, the output end of the second pushing element and the side surface of the second impeller are respectively provided with a second transmission component which is matched with each other, so that when the output end of the second pushing element is close to the second impeller, the second impeller is braked through the transmission action of the two second transmission components, and the rotating friction force of the through shaft is increased.
8. The high-speed clutch-brake speed reducer according to claim 7, wherein the second thrust element includes a cylinder block and a second piston, the cylinder block is fixedly disposed in the housing, a second receiving groove is formed in the cylinder block, the second receiving groove is opened toward the second impeller, the second piston is located in the second receiving groove and forms a second thrust cavity with the second receiving groove, a second air inlet passage is formed in the cylinder block and communicates with the second receiving groove, one of the two second transmission members is disposed on the second piston, and the other of the two second transmission members is disposed on the second impeller so that the second piston is close to the second impeller after an air source enters the second thrust cavity through the second air inlet passage to enable the two second transmission members to be in transmission engagement, the second piston is in transmission connection with the second impeller, so that the friction force of the rotation of the through shaft is increased.
9. A speed reducer with high-speed clutching and braking according to claim 7 or 8, wherein the second transmission member is a friction plate transmission member.
10. A speed reducer with high-speed clutching and braking capability as claimed in claim 7 or 8, wherein the second transmission member is a gear transmission member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029614.4U CN215334065U (en) | 2021-05-14 | 2021-05-14 | Speed reducer capable of high-speed clutch braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029614.4U CN215334065U (en) | 2021-05-14 | 2021-05-14 | Speed reducer capable of high-speed clutch braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334065U true CN215334065U (en) | 2021-12-28 |
Family
ID=79546046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121029614.4U Active CN215334065U (en) | 2021-05-14 | 2021-05-14 | Speed reducer capable of high-speed clutch braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334065U (en) |
-
2021
- 2021-05-14 CN CN202121029614.4U patent/CN215334065U/en active Active
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