CN214578402U

CN214578402U - Coupling device

Info

Publication number: CN214578402U
Application number: CN202120780125.6U
Authority: CN
Inventors: 曾求洪
Original assignee: Lysteel Co Ltd
Current assignee: Lysteel Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-02
Anticipated expiration: 2031-04-15

Abstract

An embodiment of the present application provides a coupling including a torque input, a torque output, and a transmission member. The torque input part comprises a first sleeve and a first flange connected to one end of the first sleeve, and a first fixing hole penetrating along the axial direction of the coupler is formed in the first flange; torque output portion connects in the telescopic one side of first ring flange that first ring flange deviates from, and torque output portion includes that the second is telescopic and connects in the telescopic second ring flange of second, and the second ring flange includes two at least flange boards, and two at least flange boards are along the telescopic circumference interval distribution of second in order to form transmission recess, and second ring flange and the butt joint of first ring flange: and the transmission part comprises a pin shaft which is arranged in the first fixing hole and extends into the space between the two adjacent flange plates, so that the first sleeve can drive the flange plates to rotate through the pin shaft. The coupling that this application embodiment provided realizes the moment of torsion transmission of moment of torsion input part and moment of torsion output part through the round pin axle, and simple structure easy maintenance, spare part are changed easily.

Description

Coupling device

Technical Field

The application relates to the technical field of mechanical equipment, in particular to a coupler.

Background

The coupling is generally used for connecting and driving a shaft. In the industrial field, the performance of the coupling has an important influence on industrial accuracy and industrial reliability. The torque input part and the torque output part of the coupling have high requirements on the coaxiality of the roller way where the coupling is located.

The existing coupling corrects the different axial deviation between two shafts through a complex structure or compensates the axial deviation and the radial deviation between the two shafts by using an elastic workpiece. The coupler with the complex compensation structure is easy to damage due to reduced precision after being worn and is not easy to repair and replace accessories. Couplings with a resilient structure cannot transmit large torques.

Disclosure of Invention

The embodiment of the application provides a coupler to solve the difficult problem of maintaining the change accessory of coupler.

A first aspect of an embodiment of the present application provides a coupling comprising a torque input, a torque output and a transmission component. The torque output part comprises a first sleeve and a first flange connected to one end of the first sleeve, and a first fixing hole penetrating along the axial direction of the coupler is formed in the first flange; torque output portion connects in the telescopic one side of first ring flange that first ring flange deviates from, and torque output portion includes that the second is telescopic and connects in the telescopic second ring flange of second, and the second ring flange includes two at least flange boards, and two at least flange boards are along the telescopic circumference interval distribution of second in order to form transmission recess, second ring flange and the butt joint of first ring flange: and the transmission part comprises a pin shaft which is arranged in the first fixing hole and extends into the space between the two adjacent flange plates, so that the first sleeve can drive the flange plates to rotate through the pin shaft.

According to the embodiment of the first aspect of the present application, the transmission component further includes a bearing, the bearing sleeve is disposed on the pin shaft and abuts between the flange plate and the pin shaft, and the bearing is rotatably disposed around the pin shaft.

According to an embodiment of the first aspect of the present application, the transmission component further includes a first nut disposed on the first flange near the first sleeve; and the second nut is arranged on one side of the bearing, which deviates from the first flange plate.

According to an embodiment of the first aspect of the present application, the transmission member further comprises a backing plate detachably fixed between the flange plate and the pin shaft.

According to an embodiment of the first aspect of the present application, the lining plate includes a first plate body located between the pin shaft and the flange plate; the second plate body is connected to the one end of first plate body and extends along the direction that deviates from the round pin axle, and the second plate body is connected in the flange board.

According to the embodiment of the first aspect of the application, the second plate body is provided with at least two second fixing holes which axially penetrate through the second plate body along the coupler, and the connecting line of the two second fixing holes on the same surface of the second plate body is parallel to the plane where the first plate body is located and the two lining plates located on the two sides of the pin shaft are symmetrical about the pin shaft.

According to the embodiment of the first aspect of the present application, the flange plate is provided with a third fixing hole aligned with the second fixing hole, and the second fixing hole and the third fixing hole fix the lining plate to the flange plate through bolts.

According to an embodiment of the first aspect of the present application, the second flange plate comprises a body portion arranged circumferentially around the second sleeve, the two or more flange plates being arranged at the body portion; the flange plate comprises a first end face and a second end face which are arranged along the circumferential direction of the coupler in an opposite mode; the body part comprises a third end surface which is connected with the first end surface and the second end surface, the third end surface is tangent with the outer surface of the second sleeve, and the third end surface is vertical to the first end surface and the second end surface; the first end face, the second end face and the third end face surround a transmission groove.

According to an embodiment of the first aspect of the application, one of the backing plate and the flange plate is provided with a groove and the other is provided with a protrusion, so that the flange plate can provide a stop for the backing plate through the protrusion and the groove.

According to an embodiment of the first aspect of the present application, the maximum coaxiality deviation t of the coupling satisfies the following relation:

t＜2*D2＜D1(1)

wherein D1 represents the minimum spacing of the bearing from the backing plate; d2 represents the minimum separation of the bearing from the third end; t is less than 20 mm.

The coupling of the embodiment of the application has a torque input part, a torque output part and a transmission part which are connected. The torque output portion includes a second flange formed of a plurality of flange plates disposed at intervals in the circumferential direction of the coupling. Through setting up the round pin axle in the clearance between moment of torsion input portion and a plurality of flange boards to make the first sleeve of moment of torsion input portion can drive the flange board through the round pin axle and rotate, realize the moment of torsion transmission to two axis bodies. The size of transmission recess is great in the shaft coupling that this application provided, and the round pin axle can install fast in first fixed orifices and transmission recess, effectively improves the assembly efficiency of shaft coupling. The coupling provided by the embodiment of the application has the advantages of simple overall structure, low processing and assembling difficulty and low production cost.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present application will be described below by referring to the accompanying drawings.

FIG. 1 is a schematic illustration of a coupling construction provided in accordance with an embodiment of the present application;

FIG. 2 is a schematic diagram of a torque input portion according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a torque output portion according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of area A of FIG. 3;

FIG. 5 is a schematic structural view of a transmission member provided in an embodiment of the present application;

FIG. 6 is a schematic view of a liner plate according to an embodiment of the present application;

fig. 7 is a schematic view of another coupling structure provided in the embodiment of the present application.

In the drawings, the drawings are not necessarily to scale.

Description of the labeling:

10. a coupling;

100. a torque input section; 110. a first flange plate; 120. a first sleeve; 130. a first fixing hole;

200. a torque output section; 210. a second flange plate; 211. a flange plate; 212. a third fixing hole; 20. a second sleeve; 230. a transmission groove; 231. a first end face; 232. a second end face; 233. a third end face; 240. a body portion; 250. a protrusion;

300. a transmission member; 310. a pin shaft; 320. a bearing; 330. a liner plate; 331. a first plate body; 332. a second plate body; 333. a second fixing hole; 334. a groove; 340. a first nut; 350. a second nut.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.

The applicant finds that the existing coupler is very easy to damage due to the out-of-concentricity in daily use and limited by a complex structure, and the coupler cannot be repaired and replaced within a short time after being damaged, so that the working efficiency of a conveying roller way where the coupler is located is unfavorable. Therefore, the applicant provides a coupling which can work on roller ways with different axialities. The application provides a round pin axle, bearing and welt in the shaft coupling low in production cost, simple structure, easy maintenance realizes that spare part changes in the short time.

For better understanding of the present application, the technical solutions of the embodiments of the present application are described below with reference to the accompanying drawings.

FIG. 1 is a schematic illustration of a coupling 10 according to an embodiment of the present disclosure; FIG. 2 is a schematic diagram of a torque input portion 100 according to an embodiment of the present application; fig. 3 is a schematic diagram of a torque output portion 200 according to an embodiment of the present disclosure.

As shown in fig. 1 to 3, the present embodiment provides a coupling 10 including a torque input portion 100 and a torque output portion 200, and a transmission member 300 connecting the torque input portion 100 and the torque output portion 200. The torque input portion 100 includes a first sleeve 120 and a first flange 110 connected to one end of the first sleeve 120, and the first flange 110 is provided with a first fixing hole 130 penetrating in the axial direction of the coupling 10. The torque output portion 200 is connected to one side of the first sleeve 120 away from the first flange plate 110, the torque output portion 200 comprises a second sleeve 220 and a second flange plate 210 connected to the second sleeve 220, the second flange plate 210 comprises at least two flange plates 211, the at least two flange plates 211 are distributed at intervals along the circumferential direction of the second sleeve 220 to form a transmission groove 230, and the second flange plate 210 is butted with the first flange plate 110. The driving member 300 includes a pin 310, and the pin 310 is disposed in the first fixing hole 130 and extends between two adjacent flange plates 211, so that the first sleeve 120 can drive the flange plates 211 to rotate via the pin 310.

The coupling 10 of the embodiment of the present application has a torque input portion 100, a torque output portion 200, and a transmission member 300 connected thereto. The torque output portion 300 includes a second flange 210 formed of a plurality of flange plates 211 disposed at intervals in the circumferential direction of the coupling 10. The pin shaft 310 is arranged in the gap between the torque input part 300 and the plurality of flanges 211, so that the first sleeve 120 of the torque input part 100 can drive the flanges 211 to rotate through the pin shaft 310, and torque transmission of two shaft bodies is realized. The size of the transmission groove 230 in the coupler 10 provided by the application is large, the pin shaft 210 can be rapidly installed in the first fixing hole 130 and the transmission groove 230, and the assembling efficiency of the coupler 10 is effectively improved. The coupling 10 provided by the embodiment of the application has the advantages of simple overall structure, low processing and assembling difficulty and low production cost.

In the coupling 10 according to an embodiment of the present application, the torque input portion 100 is connected to a driving shaft of a working device, the first sleeve 120 is configured to be sleeved with the driving shaft of the working device, and the first sleeve 120 is provided with a key groove to improve connection stability between the first sleeve 120 and the driving shaft.

In this embodiment, the first sleeve 120 and the first flange 110 are fixed by welding, but the present application is not limited thereto, and in some other embodiments, the first sleeve 120 and the first flange 110 may be fixed by welding, riveting, or snapping. After the first sleeve 120 and the first flange plate 110 are fixed, the first sleeve 120 transmits torque to the first flange plate 110 when the driving shaft rotates, so that the first flange plate 110 rotates in the same direction as the driving shaft.

The torque output unit 200 is connected to a driven shaft of the working equipment, the second sleeve 220 is adapted to be fitted to the driven shaft of the working equipment, and the second sleeve 220 is provided with a key groove in order to improve the stability of connection between the second sleeve 220 and the driven shaft.

The above-mentioned key groove may be a single key or a plurality of keys. The second sleeve 220 and the second flange 210 may be fixed by welding or other methods.

Fig. 4 is an enlarged schematic view of the area a in fig. 3.

As shown in fig. 4, in some alternative embodiments, the second flange 210 includes a body portion 240 disposed circumferentially around the second sleeve 220, and two or more flange plates 211 are disposed on the body portion 240; the flange plate 211 comprises a first end face 231 and a second end face 232 which are arranged in the circumferential direction of the coupler 10 in an opposite manner; the body part 240 includes a third end surface 233 connecting the first and second end surfaces 231 and 232, the third end surface 233 being tangential to the outer surface of the second sleeve 220, and the third end surface 233 being perpendicular to the first and second end surfaces 231 and 232; the first, second and third end surfaces 231, 232, 233 enclose the transmission groove 230. The driving groove 230 is used for accommodating the pin shaft 310 so that the pin shaft 310 can transmit torque to the first end surface 231 or the second end surface 232. The driving groove 230 of the coupling 10 provided by the present embodiment has a regular shape, which facilitates installation.

Fig. 5 is a schematic structural diagram of a transmission component 300 according to an embodiment of the present application.

As shown in fig. 5, in some alternative embodiments, the transmission member 300 includes a bearing 320, the bearing 320 is sleeved on the pin 310 and abuts between the flange plate 211 and the pin 310, and the bearing 320 is rotatably disposed around the pin 310. The bearing 320 in this embodiment is connected between the flange plate 211 and the pin shaft 310 in a rolling manner, and the sliding friction between the pin shaft 310 and the flange plate 211 is changed into rolling friction, so that the friction force between the pin shaft 310 and the flange plate 211 is reduced, the flange plate 211 is prevented from being excessively worn, and the service lives of the flange plate 211, the bearing 320 and the pin shaft 310 are prolonged.

In some alternative embodiments, the transmission member 300 further includes a backing plate 330, and the backing plate 330 is detachably fixed between the flange plate 211 and the pin shaft 310. The liner 330 serves to protect the flange plate 211 from direct contact between the pin shaft 310 and the flange plate 211 or between the bearing 320 and the flange plate 211. The lining plate 330 is used as a sacrificial part, so that the flange plate 211 is prevented from being worn quickly, the flange plate 211 is protected, the risk of abrasion of the torque input part 100 is reduced, and frequent replacement of the torque input part 100 is avoided.

In some alternative embodiments, the lining plate 330 includes a first plate 331 and a second plate 332 connected to each other, and the first plate 331 and the second plate 332 are perpendicular to each other. The first plate 331 is located between the pin 310 and the flange 211; the second plate 332 is connected to one end of the first plate 331 and extends in a direction away from the pin 310, and the second plate 332 is connected to the flange plate 211. The first plate body 331 serves as a sacrificial member to protect the flange plate 211 from excessive wear of the flange plate 211, and the second plate body 332 serves to fix the backing plate 330 to the flange plate 211.

In other embodiments, the first plate 331 and the second plate 332 may not be perpendicular to each other, as long as the first plate 331 is located between the pin 310 and the flange 211, and the second plate 332 can be connected to the flange 211.

In some alternative embodiments, the second plate 332 is provided with at least two second fixing holes 333 penetrating through the second plate 332 along the axial direction of the coupling 10, and the connecting line of the two second fixing holes 333 on the same surface of the second plate 332 is parallel to the plane of the first plate 331; and the two lining plates 330 positioned at both sides of the pin 310 are symmetrical with respect to the pin 310. The symmetrically arranged second fixing holes 333 facilitate the reuse of the lining plates 330, and since two lining plates 330 are symmetrical with respect to the pin shaft 310, a plurality of lining plates 330 having the same structure can be fixed at a plurality of different positions by simply adjusting directions and angles. The lining plate 330 in this embodiment reduces the number of mold opening times of the lining plate 330 through the symmetrically arranged second fixing holes 333, reduces economic cost, and is easy to maintain and replace.

In some alternative embodiments, the flange plate 211 is provided with a third fixing hole 212 aligned with the second fixing hole 333, and the second fixing hole 333 and the third fixing hole 212 fix the liner plate 330 to the flange plate 211 by bolts. The second fixing hole 333 and the third fixing hole 212 are axially opened in the coupling 10 and are communicated with each other to fix the lining plate 330 to the flange plate 211, so that the second plate body 332 is tightly attached to the flange plate 211, the gap between the second body and the flange plate 211 is reduced, and the vibration of the coupling 10 is reduced.

Fig. 6 is a schematic view of a liner 330 according to an embodiment of the present disclosure.

As shown in fig. 3 and 6, in some alternative embodiments, one of the backing plate 330 and the flange plate 211 has a groove 334 and the other has a protrusion 250, such that the flange plate 211 provides a stop for the backing plate 330 via the protrusion 250 and the groove 334.

In this embodiment, the groove 334 is disposed on the abutting surface of the first plate 331 of the lining plate 330 and the flange plate 211. The protrusion 250 is disposed on the abutting surface of the flange plate 211 and the first plate 331. The groove 334 and the protrusion 250 can cooperate with each other to cope with the shearing force of the pin shaft 310, so that the relative movement between the lining plate 330 and the flange plate 211 is further improved, the abrasion of the lining plate 330 and the flange plate 211 is reduced, and the service life of the coupling 10 is further prolonged. In this embodiment, the lining board 330 is a wear-resistant lining board 330 with a shore hardness of 60.

In some alternative embodiments, the shore hardness of the backing plate 330 is between 50 and 70.

Referring to fig. 1, in some alternative embodiments, the transmission component 300 further includes a first nut 340, the first nut 340 is disposed on the pin 310 and is disposed on a side of the first flange 110 close to the first sleeve 120; and the second nut 350 is arranged on one side of the bearing 320, which is far away from the first flange plate 110. The first nut 340 and the second nut 350 are used to secure the pin 310 to the first flange 110. The second nut 350 is used for limiting the bearing 320 on the pin shaft 310 so that the rolling surface of the bearing 320 is aligned with the end surface of the flange plate 211.

It is understood that, in order to further limit the bearing 320 to a specific position, the pin 310 is further provided with a limiting protrusion 250 or a limiting stopper at a side of the bearing 320 close to the first flange 110.

As shown in fig. 1-4, in some alternative embodiments, the joints between the various components of the present embodiment are provided with spacers for protecting the flange, the pin 310 and the bearing 320. For example, spacers are provided between the first nut 340 and the first flange 110 and between the second nut 350 and the bearing 320 to protect the connections of the various components of the coupling 10.

Fig. 7 is a schematic structural diagram of another coupling 10 according to an embodiment of the present disclosure.

As shown in fig. 7, in some alternative embodiments, the maximum coaxiality deviation t of the coupling 10 satisfies the following relationship:

t＜2*D2＜D1(1)

wherein D1 characterizes the minimum separation of bearing 320 from liner 330; d2 characterizes the minimum separation of bearing 320 from third end face 233; t is less than 20 mm.

In this embodiment, D2 is the gap distance between the bearing 320 and the first and second end surfaces 231 and 232, and D2 is the gap distance between the bearing 320 and the third end surface 344.

In some optional embodiments, the coupling 10 is used for a roller conveyor for conveying workpieces with a weight of 40 tons, and when the maximum different axiality of the shaft bodies on both sides of the coupling 10 is less than 10mm, both the coupling 10 and the roller conveyor operate normally. The present application is not limited to this, and the parameters of D1 and D2 can be adjusted according to actual needs, and the coupling 10 provided in the embodiment of the present application can work in a working environment with the maximum misalignment less than 20mm through the arrangement of the transmission component 300 and the torque output portion 200, and is not easy to damage, and the maintenance and the replacement of parts are simple, quick and convenient. The stable continuous operation under the working conditions of large torque and large different axiality is realized. The production efficiency of the environmental equipment where the coupler is located is improved.

While the present application has been described with reference to preferred embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application, and in particular, features shown in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. A coupling, comprising:

the torque input part comprises a first sleeve and a first flange connected to one end of the first sleeve, and a first fixing hole penetrating through the first flange along the axial direction of the coupler is formed in the first flange;

torque output portion, connect in first ring flange deviate from telescopic one side of first ring flange, torque output portion include the second sleeve with connect in telescopic second ring flange of second, the second ring flange includes two at least flange boards, at least two the flange board is followed telescopic circumference interval distribution of second is in order to form the transmission recess, the second ring flange with the butt joint of first ring flange:

and the transmission part comprises a pin shaft, and the pin shaft is arranged in the first fixing hole and extends into the space between two adjacent flange plates, so that the first sleeve can drive the flange plates to rotate through the pin shaft.

2. The coupling according to claim 1, wherein the transmission member further comprises a bearing, the bearing is sleeved on the pin and abuts between the flange plate and the pin, and the bearing is rotatably disposed around the pin.

3. The coupling of claim 2, wherein the transmission member further comprises a first nut disposed on a side of the pin shaft disposed adjacent to the first sleeve; and the second nut is arranged on one side of the bearing, which deviates from the first flange plate.

4. The coupling of claim 3 wherein said drive member further comprises a backing plate removably secured between said flange plate and said pin.

5. The coupling of claim 4, wherein the backing plate comprises:

the first plate body is positioned between the pin shaft and the flange plate;

the second plate body, connect in the one end of first plate body and along deviating from the direction of round pin axle extends, the second plate body connect in the flange board.

6. The coupling according to claim 5,

the second plate body is provided with at least two second fixing holes which axially penetrate through the second plate body along the shaft coupling,

the connecting line of the two second fixing holes on the same surface of the second plate body is parallel to the plane of the first plate body; and the two lining plates positioned at the two sides of the pin shaft are symmetrical about the pin shaft.

7. The coupling according to claim 6, wherein the flange plate is provided with a third fixing hole aligned with the second fixing hole, and the second fixing hole and the third fixing hole fix the lining plate to the flange plate by bolts.

8. The coupling of claim 7 wherein said second flange includes a body portion disposed circumferentially around said second sleeve, more than two of said flange plates being disposed on said body portion;

the flange plate comprises a first end face and a second end face which are arranged along the circumferential direction of the coupler in an opposite mode;

the body portion includes a third end surface connecting the first end surface and the second end surface;

the third end surface is tangent to the outer surface of the second sleeve, and the third end surface is perpendicular to the first end surface and the second end surface;

the first end face, the second end face and the third end face surround the transmission groove.

9. The coupling of claim 7,

one of the lining plate and the flange plate is provided with a groove, and the other one is provided with a protrusion, so that the flange plate can provide limit for the lining plate through the protrusion and the groove.

10. The coupling of claim 8 wherein the maximum misalignment t of the coupling satisfies the following relationship:

t＜2*D2＜D1 (1)

wherein D1 characterizes the minimum separation of the bearing from the backing plate; d2 characterizing a minimum separation of the bearing from the third end; t is less than 20 mm.