CN110635616A

CN110635616A - Coupling for motor with protection function

Info

Publication number: CN110635616A
Application number: CN201910898428.5A
Authority: CN
Inventors: 左方倩
Original assignee: Shengzhou Junwei Electrical Machinery Processing Plant
Current assignee: RONGCHENG HUAYU MOTOR Co.,Ltd.
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2019-12-31
Anticipated expiration: 2039-09-23
Also published as: CN110635616B; CN111987851A; CN111987851B

Abstract

The utility model provides a shaft coupling for motor with protect function, relates to electromechanical device technical field, which comprises a housin, evenly distributed's draw-in groove is seted up to the inboard of casing, and the output shaft has been cup jointed at the middle part of casing, and the outside of output shaft is rotated and is connected with evenly distributed's dog. This shaft coupling for motor with protect function, cooperation through dog and fixture block is used, dog initial state down with the casing joint, when the motor blocks, the dog can be by the extrusion shrink in the output shaft, and piston rod two stretches out under the hydraulic pressure principle effect in hydraulic pressure groove, and the top is moved the commentaries on classics piece clockwise, the commentaries on classics piece drives the fixture block and moves to the output shaft inboard through the spacing groove, make the fixture block receive in the indentation output shaft, thereby make and do not have any joint between output shaft and the casing, at this moment, the output shaft can normally rotate at the casing middle part, and the pulley on the dog can play the effect of reducing friction power, thereby the effect of protection motor has been reached, reduce the load of motor, the service life of motor has been prolonged.

Description

Coupling for motor with protection function

Technical Field

The invention relates to the technical field of electromechanical equipment, in particular to a coupler with a protection function for a motor.

Background

The electromechanical equipment refers to automation equipment such as machinery or tools, most of the electromechanical equipment is automated through a motor, for example, a conveying device, and the motor drives a conveying belt to move through a coupler, so that the effect of automatic conveying is achieved.

Present shaft coupling for motor converts the rotation of output shaft into the gear or the bull stick rotation of all directions mostly, and transmission efficiency is higher, but present shaft coupling does not have protection device mostly, when the motor rotates to maximum displacement, the motor can be mostly because the restriction of displacement and unable rotation, but the motor still is in operating condition, this temperature that just leads to the motor risees, and the load increases at double, leads to the life of motor to shorten greatly, increase electromechanical device's cost of maintenance.

Therefore, the coupler with the protection function for the motor is provided for solving the problems, the coupler is used by matching the stop block with the clamping block, the stop block is clamped with the shell in an initial state, when the motor is clamped, the stop block can be extruded and contracted into the output shaft, the piston rod II extends out under the action of the hydraulic principle of the hydraulic groove and pushes the rotating block to rotate, the rotating block drives the clamping block to move towards the inner side of the output shaft through the limiting groove, the clamping block is retracted into the output shaft, the output shaft and the shell are not clamped, the output shaft can normally rotate in the middle of the shell, the effect of protecting the motor is achieved, the load of the motor is reduced, and the service life of the motor is prolonged.

Disclosure of Invention

The invention adopts the following technical scheme for realizing the technical purpose: a shaft coupling for a motor with a protection function comprises a shell, wherein clamping grooves which are uniformly distributed are formed in the inner side of the shell, an output shaft is sleeved in the middle of the shell, stop blocks which are uniformly distributed are rotatably connected to the outer side of the output shaft, pulleys are rotatably connected to the middle of the stop blocks, accommodating grooves which are matched with the stop blocks are formed in the outer side of the output shaft, a first piston rod which is movably connected with the inner wall of the output shaft is fixedly connected to the outer side of the stop blocks, a hydraulic groove which is matched with the first piston rod is formed in the inner wall of the output shaft, a second piston rod which is movably connected with the output shaft is movably connected to the inner wall of the second piston rod, a first spring which is fixedly connected with the inner wall of the output shaft is fixedly connected to the inner wall of the piston rod, a rotating block is rotatably connected to, the middle part of spacing groove is pegged graft and is had spacing post, the back fixedly connected with of spacing post and output shaft inner wall swing joint's fixture block, the inboard fixedly connected with of fixture block and output shaft inner wall fixed connection's spring two, the shrink groove with fixture block looks adaptation is seted up in the outside of output shaft, the constant head tank with fixture block looks adaptation is seted up to the inboard of casing.

The invention has the following beneficial effects:

1. this shaft coupling for motor with protect function, cooperation through dog and fixture block is used, dog initial state down with the casing joint, when the motor blocks, the dog can be by the extrusion shrink in the output shaft, and piston rod two stretches out under the hydraulic pressure principle effect in hydraulic pressure groove, and the top is moved the commentaries on classics piece clockwise, the commentaries on classics piece drives the fixture block and moves to the output shaft inboard through the spacing groove, make the fixture block receive in the indentation output shaft, thereby make and do not have any joint between output shaft and the casing, at this moment, the output shaft can normally rotate at the casing middle part, and the pulley on the dog can play the effect of reducing friction power, thereby the effect of protection motor has been reached, reduce the load of motor, the service life of motor has been prolonged.

2. This shaft coupling for motor with protect function, use through the cooperation of torsional spring with the hydraulic pressure groove, after the motor stop work, the output shaft can continue to rotate under inertial effect, reduce to certain speed within range gradually when slew velocity, the dog rotates when the draw-in groove position, the rotating block can anticlockwise direction rotate under the effect of torsional spring, the fixture block can stretch out the output shaft and with the constant head tank joint under the effect of spacing groove simultaneously, and the rotating block squeezes two piston rod into the hydraulic pressure groove, and the dog can be under the hydraulic principle effect of piston rod one again with the draw-in groove joint, resume to initial condition, thereby automatic re-setting's effect has been reached, the later stage of being convenient for is used, the trouble of artifical reset has been removed from.

Further, the material of casing is steel material and the middle part of casing is seted up with the mounting groove of output shaft looks adaptation, the quantity of draw-in groove is two and the degree of depth of draw-in groove is not more than the thickness of casing.

Furthermore, the middle part of the output shaft is provided with a movable groove matched with the rotating block, the output shaft is made of steel, the stop block is made of steel, and the stop block is arc-shaped.

Furthermore, the first piston rod is arc-shaped, the circle center of the first piston rod is the same as that of the stop block, hydraulic oil is filled in the middle of the hydraulic groove, and the length of the second piston rod is the same as the rotation length of the rotating block.

Further, the torsional spring is extension spring and the external diameter of torsional spring beats in the minimum internal diameter of commentaries on classics piece, the shape of spacing groove is arc and the quantity of spacing groove is two, the material of spacing post is steel material.

Furthermore, the number of the clamping blocks is two, the clamping blocks are made of steel materials, and the second spring is a compression spring and the number of the second spring is two.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a diagram illustrating a pop-up structure of the stopper according to the present invention;

FIG. 3 is a schematic diagram of a clamping structure of the clamping block of the present invention;

FIG. 4 is an enlarged partial view of portion A of FIG. 1;

FIG. 5 is an enlarged partial view of the portion B in FIG. 2 according to the present invention.

In the figure: the hydraulic cylinder comprises a shell 1, a clamping groove 2, an output shaft 3, a stop block 4, a pulley 5, a receiving groove 6, a piston rod I7, a hydraulic groove 8, a piston rod II 9, a spring I10, a rotating block 11, a torsion spring 12, a limiting groove 13, a limiting column 14, a clamping block 15, a spring II 16, a contraction groove 17 and a positioning groove 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a coupler for a motor with a protection function comprises a housing 1, the housing 1 is fixedly connected, the housing 1 is made of steel material, a mounting groove matched with an output shaft 3 is formed in the middle of the housing 1, the number of the clamping grooves 2 is two, the depth of each clamping groove 2 is not larger than the thickness of the housing 1, the clamping grooves 2 are uniformly distributed on the inner side of the housing 1, the clamping grooves 2 are clamped with stop blocks 4, the output shaft 3 and the housing 1 rotate together, the output shaft 3 is sleeved in the middle of the housing 1, the output shaft 3 plays a role of transmission, a movable groove matched with a rotating block 11 is formed in the middle of the output shaft 3, the output shaft 3 is made of steel material, the stop blocks 4 are arc-shaped, the stop blocks 4 are rotatably connected to the outer side of the output shaft 3 and are uniformly distributed, the stop block 4 plays a role in clamping the output shaft 3 and the shell 1 together, the middle part of the stop block 4 is rotatably connected with the pulley 5, and the pulley 5 plays a role in reducing friction force.

The outer side of the output shaft 3 is provided with a containing groove 6 matched with the stop block 4, the containing groove 6 plays a role in containing the stop block 4, the outer side of the stop block 4 is fixedly connected with a first piston rod 7 movably connected with the inner wall of the output shaft 3, the first piston rod 7 plays a role in transmission, the first piston rod 7 is arc-shaped, the circle center of the first piston rod 7 is the same as that of the stop block 4, the middle part of a hydraulic groove 8 is filled with hydraulic oil, the length of a second piston rod 9 is the same as that of a rotating block 11, the inner wall of the output shaft 3 is provided with a hydraulic groove 8 matched with the first piston rod 7, the hydraulic groove 8 plays a role in hydraulic transmission, the inner wall of the hydraulic groove 8 is movably connected with a second piston rod 9 movably connected with the output shaft 3, the second piston rod 9 plays a role in hydraulic transmission, the inner wall of the second piston rod 9 is, the first spring 10 plays a role in contracting the extended piston rod II 9, the middle part of the output shaft 3 is rotatably connected with a rotating block 11, the rotating block 11 plays a role in transmission, the clamping block 15 is contracted into the output shaft 3, the middle part of the rotating block 11 is fixedly connected with a torsion spring 12 fixedly connected with the outer side of the output shaft 3, and the torsion spring 12 plays a role in enabling the rotating block 11 to rotate anticlockwise.

The torsion spring 12 is an extension spring, the outer diameter of the torsion spring 12 is arranged at the minimum inner diameter of the rotating block 11, the limiting grooves 13 are arc-shaped, the number of the limiting grooves 13 is two, the limiting columns 14 are made of steel, the front surface of the rotating block 11 is provided with the uniformly distributed limiting grooves 13, the limiting grooves 13 play a role in driving the limiting columns 14 to move, the middle parts of the limiting grooves 13 are inserted with the limiting columns 14, the back surfaces of the limiting columns 14 are fixedly connected with clamping blocks 15 movably connected with the inner wall of the output shaft 3, the clamping blocks 15 play a role in clamping the output shaft 3 and the shell 1, the number of the clamping blocks 15 is two, the clamping blocks 15 are made of steel, the springs 16 are compression springs and the springs 16 are two, the inner sides of the clamping blocks 15 are fixedly connected with the springs 16 fixedly connected with the inner wall of the output shaft 3, the springs 16 play a role in connection, the outer side of the output shaft 3 is provided with contraction grooves 17 matched, the contraction groove 17 plays a role in facilitating the extension and retraction of the fixture block 15, the positioning groove 18 matched with the fixture block 15 is formed in the inner side of the shell 1, and the positioning groove 18 plays a role in positioning and clamping.

The working principle is as follows: dog 4 initial condition under with 1 joint of casing, when the motor blocks, dog 4 can be by extrusion shrink in the output shaft 3, and piston rod two 9 stretches out under the hydraulic pressure principle effect in hydraulic groove 8, and the top is moved and is changeed 11 clockwise rotations, it drives fixture block 15 through spacing groove 13 and move to the output shaft 3 inboard to change piece 11, make fixture block 15 shrink in advancing output shaft 3, thereby make and do not have any joint between output shaft 3 and the casing 1, at this moment output shaft 3 can be at 1 middle part normal rotations of casing, and pulley 5 on the dog 4 can play the effect of reducing friction power.

After the motor stop work, output shaft 3 can continue to rotate under inertial effect, reduce to certain speed within range gradually as slew velocity, dog 4 rotates when draw-in groove 2 position, it can rotate anticlockwise under torsional spring 12's effect to change piece 11, simultaneously fixture block 15 can stretch out output shaft 3 and with constant head tank 18 joint under spacing groove 13's effect, and change piece 11 and extrude into hydraulic groove 8 with two 9 piston rods, and dog 4 can be under the hydraulic principle effect of piston rod one 7 with draw-in groove 2 joint again, resume to initial condition, thereby automatic re-setting's effect has been reached, the later stage of being convenient for is used.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shaft coupling for motor with protect function, includes casing (1), its characterized in that: the inner side of the shell (1) is provided with clamping grooves (2) which are uniformly distributed, the middle part of the shell (1) is sleeved with an output shaft (3), the outer side of the output shaft (3) is rotatably connected with check blocks (4) which are uniformly distributed, the middle part of the check blocks (4) is rotatably connected with pulleys (5), the outer side of the output shaft (3) is provided with accommodating grooves (6) matched with the check blocks (4), the outer side of the check blocks (4) is fixedly connected with piston rods (7) movably connected with the inner wall of the output shaft (3), the inner wall of the output shaft (3) is provided with hydraulic grooves (8) matched with the piston rods (7), the inner wall of the hydraulic grooves (8) is movably connected with piston rods (9) movably connected with the output shaft (3), the inner wall of the piston rods (9) is fixedly connected with springs (10) fixedly connected with the inner wall of the output shaft (3), the middle part of the, the middle part fixedly connected with of commentaries on classics piece (11) and the outside fixed connection's of output shaft (3) torsional spring (12), evenly distributed's spacing groove (13) have been seted up in the front of commentaries on classics piece (11), the middle part of spacing groove (13) is pegged graft and is had spacing post (14), the back fixedly connected with of spacing post (14) and output shaft (3) inner wall swing joint's fixture block (15), the inboard fixedly connected with of fixture block (15) and output shaft (3) inner wall fixed connection's spring two (16), shrink groove (17) with fixture block (11) looks adaptation are seted up in the outside of output shaft (3), constant head tank (18) with fixture block (15) looks adaptation are seted up to the inboard of casing (1).

2. A coupling for a motor with a protection function according to claim 1, characterized in that: the material of casing (1) is steel material and the middle part of casing (1) is seted up the mounting groove with output shaft (3) looks adaptation.

3. A coupling for a motor with a protection function according to claim 1, characterized in that: the number of the clamping grooves (2) is two, and the depth of the clamping grooves (2) is not larger than the thickness of the shell (1).

4. A coupling for a motor with a protection function according to claim 1, characterized in that: the middle part of the output shaft (3) is provided with a movable groove matched with the rotating block (11), the output shaft (3) is made of steel materials, the stop block (4) is made of steel materials, and the stop block (4) is arc-shaped.

5. A coupling for a motor with a protection function according to claim 1, characterized in that: the shape of the first piston rod (7) is arc-shaped, and the circle center of the first piston rod (7) is the same as that of the stop block (4).

6. A coupling for a motor with a protection function according to claim 1, characterized in that: the middle part of the hydraulic groove (8) is filled with hydraulic oil, and the length of the second piston rod (9) is the same as the rotating length of the rotating block (11).

7. A coupling for a motor with a protection function according to claim 1, characterized in that: the torsion spring (12) is an extension spring, the outer diameter of the torsion spring (12) is beaten to the minimum inner diameter of the rotating block (11), the limiting grooves (13) are arc-shaped, the number of the limiting grooves (13) is two, and the limiting columns (14) are made of steel materials.

8. A coupling for a motor with a protection function according to claim 1, characterized in that: the number of the clamping blocks (15) is two, the clamping blocks (15) are made of steel materials, the second spring (16) is a compression spring, and the number of the second spring (16) is two.