CN217107918U

CN217107918U - Overload protection coupling

Info

Publication number: CN217107918U
Application number: CN202122581091.0U
Authority: CN
Inventors: 李国宣
Original assignee: Aksu Ruizhe Industry And Trade Co ltd
Current assignee: Aksu Ruizhe Industry And Trade Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-08-02
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses an overload protection coupling, which relates to the technical field of couplings and aims to solve the problems that when some motors are used for transmission, the existing motors are directly connected with a driven shaft through a driving shaft, and the joint of the driving shaft and the driven shaft is not protected, so that potential safety hazards exist when equipment is driven, and the equipment is easily damaged, thereby providing an overload protection coupling; through follower and driving piece, play a switching effect between the driven lever is connected to the motor, avoid its direct contact, cause the potential safety hazard, synchronous driven plate through in the follower, the ball type groove, driven pipe and the driving-disc of driving piece in, the drive tube, the ball, a spring, place mutually supporting between the pipe, when the drive power of motor is greater than the elasticity of spring, under the drive of revolving force, the ball drops from the ball type inslot, play the guard action, when the revolving force of motor is less than the elasticity of spring, the spring pushes up the ball into the ball type inslot once more, accomplish the connection of the two, make it normally work.

Description

Overload protection coupling

Technical Field

The utility model relates to a shaft coupling technical field specifically is an overload protection shaft coupling.

Background

The coupling is also called coupling, and is used for firmly connecting a driving shaft and a driven shaft in different mechanisms to rotate together and transmitting mechanical components of movement and torque.

Sometimes also used for coupling a shaft with other parts (such as gears, belt wheels and the like), the shaft coupling is usually composed of two halves which are respectively coupled by keys or tight fit and the like and fastened at two shaft ends, and then the two halves are coupled together in a certain mode, and the shaft coupling can compensate offset (including axial offset, radial offset, angular offset or comprehensive offset) between the two shafts due to manufacturing and mounting inaccuracy, deformation or thermal expansion in work and the like; and shock mitigation and absorption.

Some motors at present are directly connected with a driven shaft through a driving shaft when transmission is carried out, and the connection part of the driving shaft and the driven shaft is not protected, so that potential safety hazards exist in equipment during driving, the equipment is easily damaged, and the overload protection coupling is provided.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses an overload protection coupling, the technical scheme who adopts is, including driving piece and follower, sliding connection between driving piece and the follower, the driving piece still includes driving-disc, driving tube, ball, spring, place the pipe, the driving-disc is circular, the middle part of driving-disc is equipped with the one number through-hole of intercommunication from top to bottom, be equipped with in the one number through-hole the driving tube, be equipped with the hole by the one number through-hole, the hole is equipped with multiunit and the setting of annular array, be equipped with in the second number through-hole place the pipe, place the pipe top and be equipped with the recess, sliding connection has the ball in the recess, the spring has been pressed between ball and the recess; the driven part also comprises a driven disc, a spherical groove and a driven pipe, wherein a second through hole communicated up and down is formed in the middle of the driven disc, the driven pipe is arranged in the second through hole, the spherical groove is formed beside the second through hole, and the spherical groove and the placing pipe are corresponding in position and matched in size; through the mutual matching among the spring, the placing pipe, the ball and the spherical groove, the connector can be used as a connector when the force of the connector is not larger than the force of the spring, and the connector is disconnected to form protection when the force of the connector is larger than the force of the spring; the driven pipe corresponds to the placing pipe in position and is matched with the placing pipe in size.

As an optimized technical scheme of the utility model, the third of pipe is avoided the overlength to influence the use of itself for placing the length in ball type groove.

As an optimized technical solution of the present invention, the holes are three groups.

As an optimized technical scheme of the utility model, the driven plate with driving-disc size phase-match makes it can mutually support, convenient to use.

As a preferred technical scheme of the utility model, driven pipe with all be equipped with the constant head tank in the driving tube, play the drive shaft through the constant head tank and fix with it the effect.

The utility model has the advantages that: the utility model discloses a follower and driving piece, play a switching effect between the driven lever is connected to the motor, avoid its direct contact, cause the potential safety hazard, synchronous driven plate through in the follower, the spherical groove, driven pipe and driving disc in the driving piece, the drive tube, the ball, a spring, place mutually supporting between the pipe, when the drive power of motor is greater than the elasticity of spring, under the drive of revolving force, the ball drops from the spherical inslot, play the guard action, when the revolving force of motor is less than the elasticity of spring, the spring pushes up the ball once more in the spherical groove, accomplish the connection of the two, make it normally work.

Furthermore, the length of the ball-shaped groove is smaller than that of the placing pipe, so that the situation that the ball stretches into the groove too much to cause separation when the rotating force is too large is avoided.

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 embodiments or the technical solutions in the prior art will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a first diagram of the structure of the present invention;

fig. 2 is a schematic top view of the driving member of the present invention;

fig. 3 is a schematic bottom view of the driving member of the present invention;

FIG. 4 is a second diagram of the structure of the present invention;

fig. 5 is a schematic top view of the driven member of the present invention;

fig. 6 is a schematic bottom view of the driven member of the present invention.

In the figure: 1. a driven plate; 2. a spherical groove; 3. a driven tube; 4. a drive disc; 5. a drive tube; 6. a ball; 7. a spring; 8. the tube is placed.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 to 6, the utility model discloses an overload protection coupling, the technical scheme of adoption is, including driving piece and follower, sliding connection between driving piece and the follower, the driving piece still includes driving-disc 4, driving tube 5, ball 6, spring 7, places pipe 8, driving-disc 4 is circular, the middle part of driving-disc 4 is equipped with one number through-hole of intercommunication from top to bottom, be equipped with in the one number through-hole driving tube 5, be equipped with the hole beside the one number through-hole, the hole is equipped with multiunit and annular array setting, is equipped with in the two number through-hole and places pipe 8, it is equipped with the recess to place pipe 8 top surface, sliding connection has the ball 6 in the recess, press-mounting has the spring 7 between ball 6 and the recess; the driven part also comprises a driven disc 1, a spherical groove 2 and a driven pipe 3, wherein a second through hole communicated with each other up and down is formed in the middle of the driven disc 1, the driven pipe 3 is arranged in the second through hole, the spherical groove 2 is formed beside the second through hole, and the spherical groove 2 corresponds to the placing pipe 8 in position and is matched with the placing pipe in size; the positions of the spherical groove and the placing pipe correspond to each other, so that the ball can partially enter the spherical groove under the action of the spring to complete the connection between the driving disc and the driven disc; the driven pipe 3 corresponds to the placing pipe 8 in position and is matched with the placing pipe in size.

As an optimal technical scheme of the utility model, the length of ball type groove 2 is for placing the third of pipe 8, avoids the ball type groove too deeply, leads to the spring to stretch into for lose protect function.

As an optimized technical scheme of the utility model, driven plate 1 with 4 size phase-matchs of driving-disc make the two closely laminate, contrast completely.

As a preferred technical scheme of the utility model, driven pipe 3 with all be equipped with the constant head tank in the driving tube 5, through the constant head tank plays the limiting displacement, beats when avoiding the equipment connection and changes.

The utility model discloses a theory of operation: when a driving shaft of the motor is connected with a driving pipe 5 on a driving disc 4, a synchronous driven disc 1 is attached to the driving disc 4, a spring 7 in a placing pipe 8 pushes a ball 6 into a spherical groove 2, the driven disc 1 and the driving disc 4 are limited mutually to rotate synchronously, then the driven shaft is connected with a driven pipe 3 and is driven to rotate by the motor, and when the rotating force of the motor is greater than the force of the spring 7, the ball 6 is separated from the spherical groove 2 under the action of the rotating force, so that the limitation of the driven disc 1 and the driving disc 4 is cancelled, a driven rod is protected, and the equipment is prevented from being damaged.

The mechanical connection according to the present invention is a conventional means used by those skilled in the art, and can be suggested by limited tests, which is common knowledge.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims

1. An overload protection shaft coupling, includes driving piece and follower, the driving piece with sliding connection between the follower, its characterized in that: the driving piece further comprises a driving disc (4), a driving tube (5), balls (6), springs (7) and a placing tube (8), wherein the driving disc (4) is circular, a first through hole which is communicated up and down is formed in the middle of the driving disc (4), the driving tube (5) is arranged in the first through hole, holes are formed beside the first through hole, the holes are provided with a plurality of groups and are arranged in an annular array, the placing tube (8) is arranged in the second through hole, a groove is formed in the top surface of the placing tube (8), the balls (6) are connected in the groove in a sliding mode, and the springs (7) are arranged between the balls (6) and the groove in a pressing mode; the driven part also comprises a driven disc (1), a spherical groove (2) and a driven pipe (3), wherein a second through hole communicated up and down is formed in the middle of the driven disc (1), the driven pipe (3) is arranged in the second through hole, the spherical groove (2) is formed beside the second through hole, and the spherical groove (2) corresponds to the placing pipe (8) in position and is matched with the placing pipe in size; the driven pipe (3) corresponds to the placing pipe (8) in position and is matched with the placing pipe in size.

2. An overload protection coupling according to claim 1 wherein: the length of the spherical groove (2) is one third of that of the placing pipe (8).

3. An overload protection coupling according to claim 1 wherein: the wells were in three groups.

4. An overload protection coupling according to claim 1 wherein: the driven disc (1) is matched with the driving disc (4) in size.

5. An overload protection coupling according to claim 1 wherein: positioning grooves are formed in the driven pipe (3) and the driving pipe (5).