Deceleration clutch

Abstract

The utility model belongs to the technical field of clutches, and discloses a speed reduction clutch which comprises an installation frame and a speed reducer, the speed reducer is a planetary speed reducer, a pin hole and a pin assembly are arranged on the installation frame, the pin assembly comprises a pin telescopically arranged in the pin hole, a limiting hole is formed in a shell of the planetary speed reducer, and the pin assembly is arranged in the limiting hole. And the pin penetrates through the pin hole and is inserted into the limiting hole. According to the planetary reducer, the limiting hole is formed in the shell of the planetary reducer and is matched with the pin for use; after the pin is inserted into the limiting hole, the shell of the speed reducer is fixed and is used as a normal speed reducer; when the pin is pulled out of the limiting hole, the shell of the speed reducer is in a floating state, the shell of the speed reducer can rotate, the effect of a clutch is achieved, power connection between the speed reduction box and the output shaft of the motor is disconnected, and resistance brought by the speed reduction ratio is avoided. And a clutch does not need to be additionally mounted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to clutch technical field, especially relate to a speed reducer clutch. BACKGROUND

[0002] The air door is an important structure in the mine ventilation system, which separates the air flow, creates conditions for the air flow distribution according to the needs, and provides convenience for pedestrians and transportation. However, the air door under the mine is heavy, and an automatic opening and closing mechanism needs to be configured to realize the opening and closing, and the opening and closing of the air door is usually realized by a motor through a speed reducer. In the case of power failure or drive mechanism failure, the door cannot be opened or closed manually. Therefore, a speed reducer clutch needs to be designed, which can be used as a speed reducer in normal state, and plays the role of clutch in the case of power failure or drive mechanism failure, so as to realize manual opening or closing of the door. SUMMARY

[0003] The utility model discloses in order to solve above-mentioned technical problem, provide a kind of speed reducer clutch, the technical scheme that the utility model adopts is as follows:

[0004] A speed reducer clutch includes a mounting frame and a speed reducer. The speed reducer is a planetary speed reducer. The mounting frame is provided with a pin hole and a pin assembly. The pin assembly includes a pin that is telescopically arranged in the pin hole. The housing of the planetary speed reducer is provided with a limiting hole. The pin is inserted into the limiting hole through the pin hole.

[0005] The input shaft of the planetary speed reducer of the speed reducer clutch can be drivingly connected to the output shaft of the driving motor. The output shaft of the planetary speed reducer can be drivingly connected to the driven device. When the pin is inserted into the limiting hole, the housing of the speed reducer is fixed, and the speed reducer is used as a normal speed reducer. In the case of power failure or drive mechanism failure, the pin can be pulled out of the limiting hole, and the housing of the speed reducer is in a floating state. The housing of the speed reducer can rotate, and plays the role of clutch. The power connection between the speed reducer box and the output shaft of the motor is disconnected, the resistance caused by the speed reduction ratio is avoided, and manual operation can be realized, such as manually opening or closing the air door in the mine.

[0006] Further, the planetary reducer further comprises a sun gear, a planet gear, a planet carrier, an output shaft and an input shaft, the housing is provided with an inner ring gear, the inner ring gear is arranged in meshing with the planet gear, the sun gear is arranged coaxially with the housing, the sun gear is arranged in meshing with the planet gear, when the sun gear rotates, the planet gear rotates synchronously in the housing; the planet gear is at least three; the planet carrier is connected with the planet gear and arranged coaxially with the sun gear; one end of the output shaft is connected coaxially with the planet carrier, and the other end is used for being connected with an output end; one end of the input shaft is connected coaxially with the sun gear, and the other end is used for being connected with a driving motor.

[0007] When the pin is inserted into the limiting hole, the housing of the planetary reducer is fixed, when in use, the driving motor drives the sun gear to rotate through the input shaft, the sun gear drives the at least three planet gears meshing with the sun gear to rotate in the process of rotating, the planet gears revolve along the circular ring track formed by the inner ring gear of the housing in the process of rotating, that is, the "revolution" motion around the sun gear is formed, the planet gears drive the planet carrier to rotate in the process of revolving, and the planet carrier transmits the power to the output shaft and then to other output ends.

[0008] When the pin is pulled out of the limiting hole, the housing of the reducer is in a floating state, if the output end drives the output shaft of the planet carrier under the action of artificial external force, the output shaft drives the planet carrier to rotate, and the planet carrier drives the planet gear to rotate; since the driving motor cannot rotate due to power failure or failure to start, the sun gear is "locked", and the rotation of the planet gear cannot drive the rotation of the sun gear; at this time, the housing of the reducer is in a floating state, the planet carrier is meshed with the inner ring gear of the housing, and the rotation of the planet gear drives the housing to rotate, thereby playing the role of a clutch.

[0009] Further, the pin assembly further comprises a sleeve, a cylinder end cover and a spring; the sleeve is arranged on the mounting frame, and the sleeve is arranged coaxially with the pin hole; the cylinder end cover is fixed to the sealing end of the sleeve, and the cylinder end cover is provided with a through hole through which the pin can pass; the pin is provided with a limiting table, the limiting table is located in the sleeve, and a spring is arranged between the cylinder end cover and the limiting table.

[0010] Further, the limiting hole is provided with a buffer mechanism.

[0011] According to the application, the buffer mechanism is arranged, the impact of the large torque of the motor at the starting moment on each part can be greatly reduced, and the opening and closing of the door are more smooth.

[0012] Further, the pin is made of metal.

[0013] The utility model provides a kind of reduction clutch, limit hole is equipped on the shell of planetary reducer, and it is used with pin;When pin is inserted into limit hole, the shell of reduction machine is fixed, it is used as normal reduction machine;In the special situation such as power failure or driving mechanism cannot start, after pin is pulled out from limit hole, the shell of reduction machine is in floating state, the shell of reduction machine can rotate, it plays the role similar to clutch, disconnects the power connection between reduction gearbox and motor output shaft, avoids the resistance caused by reduction ratio;It is not necessary to install clutch additionally. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure diagram of the utility model reduction clutch;

[0015] Figure 2 It is the front view of the utility model reduction clutch;

[0016] Figure 3 It is Figure 2 Sectional view of A-A place in;

[0017] Figure 4 It is the structure relationship diagram of sun gear, planetary gear and shell of planetary reduction machine (not draw planetary carrier).

[0018] Marking in the drawing is explained:

[0019] 1, mounting frame;2, shell;3, output shaft;4, input shaft;5, pin;6, sun gear;7, planetary gear;8, sleeve;9, barrel end cover;10, spring;11, limit platform;12, limit hole. DETAILED DESCRIPTION

[0020] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below in conjunction with the drawings.

[0021] Embodiment:

[0022] As Figures 1-4As shown, a kind of speed reduction clutch, including a mounting frame 1, speed reducer, the speed reducer is planetary reducer, the mounting frame 1 is equipped with pin hole and pin assembly, the pin assembly includes sleeve 8, barrel end cover 9, pin 5 and spring 10, the sleeve 8 is equipped on the mounting frame 1, the sleeve 8 is coaxially arranged with the pin hole;The barrel end cover 9 is fixed at the sealing end of the sleeve 8, the barrel end cover 9 is equipped with the through hole that can make pin 5 penetrate;The pin 5 is equipped with limiting table 11, the limiting table 11 is located in the sleeve 8, spring 10 is equipped on the pin 5 between the barrel end cover 9 and the limiting table 11, the pin 5 is telescopically arranged in pin hole.The planetary reducer includes shell 2, sun gear 6, planetary gear 7, planet carrier, output shaft 3 and input shaft 4.The shell 2 of the planetary reducer is equipped with limiting hole 12, the pin 5 is inserted into the limiting hole 12 by the pin hole;The shell 2 is equipped with inner ring gear, the inner ring gear is meshed with the planetary gear 7 and is arranged.The sun gear 6 is coaxially arranged with the shell 2, the sun gear 6 is meshed with the planetary gear 7 and is arranged, when the sun gear 6 rotates, the planetary gear 7 rotates synchronously in the shell 2;The planetary gear 7 is three in the embodiment;The planet carrier is connected with the planetary gear 7, and is coaxially arranged with the sun gear 6;One end of the output shaft 3 is coaxially connected with the planet carrier, and the other end is used to be connected with output end;One end of the input shaft 4 is coaxially connected with the sun gear 6, and the other end is used to be connected with driving motor.

[0023] In addition, the limiting hole 12 is equipped with buffer mechanism, the impact of the torque of motor starting moment to each part can be greatly reduced, and the opening and closing of door are more smooth. In the embodiment, the mounting frame, sleeve 8, barrel end cover 9, pin 5 and spring 10 are metal materials.

[0024] The input shaft 4 of the planetary reducer of the speed reduction clutch can be drivingly connected with the output shaft 3 of the driving motor, and the output shaft 3 of the planetary reducer can be drivingly connected with the driven device. When the pin 5 is inserted into the limiting hole 12 during use, the shell 2 of the planetary reducer is fixed, the driving motor drives the sun gear 6 to rotate through the input shaft 4, the sun gear 6 drives the three planetary gears 7 meshing with the sun gear 6 to rotate during rotation, the planetary gears 7 revolve along the circular track formed by the inner ring gear of the shell 2 during rotation, and the planetary gears 7 revolve around the sun gear 6, the planetary gears 7 drive the planet carrier to rotate during revolution, and the power is transmitted to the output shaft 3 through the planet carrier, and then transmitted to other output ends, and the speed reducer is used normally.

[0025] In the special situation of power failure or drive mechanism failure unable to start, the pin 5 can be pulled out of the limit hole 12, and the shell 2 of the speed reducer is in a floating state, the output shaft 3 of the output end is driven by external force to drive the planetary carrier, the output shaft 3 drives the planetary carrier to rotate, and the planetary carrier drives the planetary gear 7 to rotate; Because the driving motor cannot rotate in the special situation of power failure or failure to start, the sun gear 6 is also locked, and even if it is not locked, due to the speed reduction ratio of the speed reducer, it needs a very large force to drive the input end to rotate in the reverse direction from the output end when used as a speed reducer, so the rotation of the planetary gear 7 is difficult or even impossible to drive the rotation of the sun gear 6; At this time, the shell 2 of the speed reducer is in a floating state, the planetary carrier is engaged with the inner ring gear provided on the shell 2, so the rotation of the planetary gear 7 drives the shell 2 to rotate, that is, the rotation of the output shaft is realized under the condition that the motor rotor is fixed, and the method plays a role similar to the clutch, disconnects the power connection between the speed reducer and the motor output shaft 3, avoids the resistance brought by the speed reduction ratio, and can be operated manually without the need to additionally install a clutch, and the rotation of the output shaft can realize manual opening and closing of the door.

[0026] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A reduction clutch characterized by, The installation frame is provided with a pin hole and a pin assembly, the pin assembly comprises a pin which is telescopically arranged in the pin hole, and the outer shell of the planetary reducer is provided with a limiting hole, and the pin is inserted into the limiting hole through the pin hole.

2. The reduction clutch of claim 1, wherein The planetary reducer further comprises a sun gear, a planet gear, a planet carrier, an output shaft and an input shaft, the outer shell is provided with an inner ring gear, the planet gear is arranged in meshing with the inner ring gear, the sun gear is coaxially arranged with the outer shell, and the sun gear is arranged in meshing with the planet gear, and when the sun gear rotates, the planet gear rotates synchronously in the outer shell. The planet gear is at least three, the planet carrier is connected with the planet gear and coaxially arranged with the sun gear, one end of the output shaft is coaxially connected with the planet carrier, and the other end is used for being connected with an output end, and one end of the input shaft is coaxially connected with the sun gear, and the other end is used for being connected with a driving motor.

3. The reduction clutch of claim 2, wherein, The pin assembly further comprises a sleeve, a cylinder end cover and a spring, the sleeve is arranged on the installation frame, the sleeve is coaxially arranged with the pin hole, the cylinder end cover is fixed on the sealing end of the sleeve, the cylinder end cover is provided with a through hole which can be penetrated by the pin, the pin is provided with a limiting table, the limiting table is located in the sleeve, and the spring is arranged between the cylinder end cover and the limiting table.

4. The reduction clutch of claim 3, wherein The limiting hole is provided with a buffer mechanism.

5. The reduction clutch of claim 4 wherein, The pin is made of metal.

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