Coupling for mechanical transmission

Abstract

The utility model discloses a coupler for mechanical transmission, which comprises a first coupling piece and a second coupling piece, and the first coupling piece is provided with a first circular groove; a turntable is arranged on the inner side of the first circular groove, at least three arc-shaped baffles are arranged on the inner wall edge in the circumferential direction, a center hole is formed in the center of the bottom wall, and a lug boss is arranged on the outer side; the protruding part is provided with a second circular groove and a limiting hole penetrating through the circular groove, and the limiting hole is provided with a limiting screw. One end of the cylinder is connected with the second coupling piece, the other end of the cylinder is circumferentially provided with limiting arc plates which correspond to the arc-shaped baffles and are located on the rear sides of the arc-shaped baffles, and positioning holes are formed in the centers of the limiting arc plates; a rotating column with one end connected with the rotating disc is arranged in the second circular groove, a cross-shaped hole is formed in the other side of the rotating column, and a limiting screw penetrates through the cross-shaped hole; positioning rods sliding in the positioning holes are arranged on the other sides of the turntables; the outer sides of the first coupling piece and the second coupling piece are connected and fixed through a plurality of fasteners. The coupler can effectively avoid potential safety hazards such as bolt loosening and falling after the coupler is used.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the coupling technical field, concretely relates to a coupling for mechanical transmission. BACKGROUND

[0002] Coupling refers to the coupling of two shafts or shafts and rotary parts, which rotates together in the process of transmitting motion and power, and is not disconnected under normal circumstances. Because of its simple structure, it is convenient to assemble, disassemble and maintain, and is widely used in various transmission machines and mechanical equipment. Coupling is sometimes used as a safety device to prevent the connected machine from bearing excessive load, and plays the role of overload protection.

[0003] The existing coupling connection tightness is usually directly installed and combined by two coupling pieces using bolts. After long-term use, the coupling is prone to looseness, which may cause bolt cutting, coupling piece falling off and other safety hazards, affecting the normal production. UTILITY MODEL CONTENTS

[0004] In view of the defects in the background art, the utility model provides a coupling for mechanical transmission, which can effectively avoid the safety hazards such as bolt loosening and coupling piece falling off after long-term use of the coupling.

[0005] The technical scheme for solving the technical problems of the utility model is as follows:

[0006] According to one aspect of the present application, a mechanical transmission coupling is provided, comprising left and right detachable connection first coupling member and second coupling member, the first coupling member center is provided with a first circular groove; the first circular groove is provided with a rotating disc inside, which is provided with at least three arc-shaped baffles on the inner wall near the edge, the bottom wall center is provided with a center hole and a protruding part outside the center hole; the protruding part center is provided with a second circular groove which is through the center hole, and a limiting hole is also provided on the second circular groove, the limiting hole is provided with a limiting screw; each arc-shaped baffle is provided with a cylinder at the center, one end of the cylinder is connected with the center of the second coupling member, the other end is located in the first circular groove and is provided with a limiting arc plate which corresponds to each arc-shaped baffle and is located behind each arc-shaped baffle, the size of each limiting arc plate is not greater than the size of the gap between adjacent arc-shaped baffles, and the center of each limiting arc plate is provided with an axial positioning hole; the second circular groove is provided with a rotating column which is connected with the center of the rotating disc, and the other side of the rotating column is provided with a cross hole which corresponds to the limiting hole; the other side of the rotating disc is provided with a positioning rod which corresponds to each positioning hole and is slidingly arranged inside each positioning hole; the limiting screw is arranged in the cross hole, and the outer side of the first coupling member and the second coupling member is respectively provided with a plurality of pairs of mounting blocks which are respectively connected and fixed by fasteners.

[0007] Further, the first coupling member and the second coupling member are provided with a sealing ring pad between the connecting end faces.

[0008] Further, the number of arc-shaped baffles is four.

[0009] Further, the second circular groove is provided with a ring groove at the position of the center hole, the outer side of the rotating column is provided with a ring plate, and the ring plate is rotatingly arranged in the ring groove.

[0010] Further, the sum of the angle of each arc-shaped baffle and the angle of each limiting arc plate is 360°.

[0011] Further, the angle of the limiting arc plate is the same as the angle of the arc-shaped baffle.

[0012] Further, the arc-shaped cross-sectional dimension of the limiting arc plate is consistent with the arc-shaped cross-sectional dimension of the arc-shaped baffle.

[0013] Further, the diameter of the second circular groove is the same as the diameter of the center hole.

[0014] The utility model provides a kind of coupling for mechanical transmission relative to prior art, its structure is novel, simple, reasonable, by embedding the each limiting arc plate of second coupling piece connection's cylinder from arc baffle between to the inside of first circular groove, simultaneously make each positioning rod on rotating disc respectively embedded in the positioning hole of limiting arc plate, then by rotating limiting arc plate makes it coincide with arc baffle, then by limiting screw penetrates the cross hole on the convex portion inside rotating column, positioning effect to rotating column is played, and then the first coupling piece and second coupling piece can be positioned, the effect that first coupling piece and second coupling piece are prevented from loosening bolt and are separated can be played, and then the effect that the safety of coupling is improved is achieved;The utility model further sets up sealing ring pad between the first coupling piece and second coupling piece, the effect that the first coupling piece and second coupling piece are sealed between is played, and then the sealing performance of entire coupling is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the main body structure schematic diagram of the utility model;

[0016] Figure 2 It is the schematic diagram of the connecting position of rotating column and rotating disc in the utility model;

[0017] Figure 3 It is the cross-sectional schematic diagram of the connecting position of rotating column and rotating disc in the utility model;

[0018] Figure 4 It is the overall schematic diagram of the first coupling piece in the utility model;

[0019] Figure 5 It is the cross-sectional schematic diagram of the first coupling piece in the utility model;

[0020] Figure 6 It is the overall schematic diagram of the second coupling piece in the utility model.

[0021] In the drawing: 1, first coupling piece;2, first circular groove;3, arc baffle;4, cylinder;5, limiting arc plate;6, positioning rod;7, rotating disc;8, second circular groove;9, rotating column;10, ring groove;11, ring plate;12, cross hole;13, limiting screw;14, second coupling piece;15, sealing ring pad;16, mounting block;17, fastener;18, convex portion;19, center hole;20, limiting hole;21, positioning hole. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. Unless otherwise defined, the technical terms or scientific terms used herein should have the usual meaning understood by those of ordinary skill in the art to which the present application belongs. The "upper", "lower", "left", "right", "front", "back", "inner", "outer", "second", "first" and the like used in the patent application specification and claims of the present application are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship also changes accordingly. The unexplained part of the present application is the known technology of those skilled in the art.

[0023] Example 1

[0024] As Figures 1-6As shown, the application provides a mechanical transmission coupling, comprising left and right detachable connection first coupling 1 and second coupling 14, the outer side of the first coupling 1 and the second coupling 14 is used to connect the shaft parts or power components, the first coupling 1 center is provided with a first circular groove 2; the inner side of the first circular groove 2 is provided with a rotating disc 7, the inner wall of the first circular groove 2 near the outer side edge is provided with at least three arc baffles 3, preferably four; the center of the bottom wall of the first circular groove 2 is provided with a center hole 19 and a protruding part 18 is arranged outside the center hole 19; the center of the protruding part 18 is provided with a second circular groove 8 which is through the center hole 19, the diameter of the second circular groove 8 is preferably the same as that of the center hole 19, the protruding part 18 is further provided with a limiting hole 20 which is through the second circular groove 8 radially, and the limiting hole 20 is provided with a limiting screw 13; the center of each arc baffle 3 is provided with a cylinder 4 in the axial direction, one end of the cylinder 4 is connected with the center of the second coupling 14, and the other end is located in the first circular groove 2 and is provided with a limiting arc plate 5 which corresponds to each arc baffle 3 and is located at the back side of each arc baffle 3, the size of each limiting arc plate 5 is not greater than the gap size between adjacent arc baffles 3, that is, each limiting arc plate 5 can enter the inside of the first circular groove 2 from the gap between adjacent arc baffles 3, and the center of each limiting arc plate 5 is provided with an axial positioning hole 21; the inner side of the second circular groove 8 is provided with a rotating column 9 which is connected with the center of the rotating disc 7, and the other side of the rotating column 9 is provided with a cross hole 12 which corresponds to the limiting hole 20; the other side of the rotating disc 7 is provided with a positioning rod 6 which corresponds to each positioning hole 21 and is slidingly arranged in the inner side of each positioning hole 21; the limiting screw 13 is arranged in the cross hole 12; the outer side of the first coupling 1 and the second coupling 14 is respectively provided with a plurality of pairs of mounting blocks 16 which correspond to each other, the mounting blocks 16 are respectively connected and fixed by fasteners 17, and the first coupling 1 and the second coupling 14 are fixed from the outer side.

[0025] When the first coupling 1 and the second coupling 14 are assembled into a coupling, each limiting arc plate 5 on the cylinder 4 of the second coupling 14 is sent into the first circular groove 2 of the first coupling 1 from the gap between adjacent arc baffles 3, and each positioning rod 6 is slid into the positioning hole 21 of the corresponding limiting arc plate 5, then the second coupling 14 is rotated, so that each limiting arc plate 5 is located at the back side of each corresponding arc baffle 3, and one of the holes of the cross hole 12 corresponds to the limiting hole 20, each mounting block 16 corresponds to each other, the limiting screw 13 is arranged in the cross hole 12, the rotating column 9 is prevented from rotating, and the pairs of mounting blocks 16 are connected and fixed by the fasteners 17. The position of the mounting block 16 on the two coupling parts and the position relative to the arc baffle, the limiting arc plate, and the position of the cross hole on the rotating column are set according to the actual situation.

[0026] As a preferred embodiment, the sum of the angle of each arc-shaped baffle 3 and the angle of each limiting arc plate 5 is 360°, the angle of the limiting arc plate 5 is the same as the angle of the arc-shaped baffle 3, and the arc-shaped cross-sectional size of the limiting arc plate 5 is consistent with the arc-shaped cross-sectional size of the arc-shaped baffle 3. Through the above setting, the use effect of the coupling can be further optimized.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, in order to improve the sealing performance of the coupling, a sealing ring pad 15 is arranged between the end faces of the first coupling member 1 and the second coupling member 14, and preferably one sealing ring pad 15 is arranged on each end face of the first coupling member 1 and the second coupling member 14.

[0029] Embodiment 3:

[0030] On the basis of embodiment 1 or 2, the ring groove 10 is arranged at the position of the center hole 19 of the second circular groove 8, and the ring plate 11 is arranged outside the rotating column 9 and is rotatably arranged in the ring groove 10, so that the rotating column 9 can be further prevented from being separated from the second circular groove 8.

Claims

1. A mechanical transmission coupling comprising a left and right detachably connected first coupling member (1) and a second coupling member (14), characterized in that, The first coupling (1) is provided with a first circular groove (2) in the center; a rotating disc (7) is arranged in the first circular groove (2); at least three arc-shaped baffles (3) are arranged on the inner wall of the rotating disc (7) near the edge; a center hole (19) is arranged in the center of the bottom wall of the rotating disc (7), and a protruding part (18) is arranged outside the center hole (19); a second circular groove (8) is arranged in the center of the protruding part (18) and penetrates the center hole (19); a limiting hole (20) is further arranged on the second circular groove (8) and penetrates the second circular groove (8) radially; a limiting screw (13) is arranged in the limiting hole (20); a cylinder (4) is arranged in the center of each arc-shaped baffle (3) axially; one end of the cylinder (4) is connected to the center of the second coupling (14), and the other end of the cylinder (4) is located in the first circular groove (2) and is provided with a limiting arc plate (5) corresponding to each arc-shaped baffle (3) and located behind each arc-shaped baffle (3) circumferentially; the size of each limiting arc plate (5) is not greater than the gap size between adjacent arc-shaped baffles (3); an axial positioning hole (21) is arranged in the center of each limiting arc plate (5); a rotating column (9) is arranged in the second circular groove (8) and connected to the center of the rotating disc (7) on one side; a cross hole (12) corresponding to the limiting hole (20) is arranged on the other side of the rotating column (9) near the end; a positioning rod (6) corresponding to each positioning hole (21) is arranged on the other side of the rotating disc (7) and slidably arranged in each positioning hole (21); the limiting screw (13) is arranged in the cross hole (12); a plurality of pairs of mounting blocks (16) are arranged on the corresponding edges of the first coupling (1) and the second coupling (14) respectively and connected and fixed by fasteners (17).

2. A mechanical transmission coupling according to claim 1, wherein A sealing ring gasket (15) is arranged between the connecting end faces of the first coupling (1) and the second coupling (14).

3. A mechanical transmission coupling according to claim 1, wherein The number of arc-shaped baffles (3) is four.

4. A mechanical transmission coupling according to claim 1, wherein An annular groove (10) is arranged in the position of the center hole (19) of the second circular groove (8); an annular plate (11) is arranged on the outer side of the rotating column (9) and rotatably arranged in the annular groove (10).

5. A mechanical transmission coupling according to claim 1, wherein The sum of the angles of each arc-shaped baffle (3) and each limiting arc plate (5) is 360°.

6. A mechanical transmission coupling according to claim 1, wherein The angle of the limiting arc plate (5) is the same as the angle of the arc-shaped baffle (3).

7. A mechanical transmission coupling according to claim 1, wherein The arc-shaped cross-sectional dimension of the limiting arc plate (5) is consistent with the arc-shaped cross-sectional dimension of the arc-shaped baffle (3).

8. A mechanical transmission coupling according to claim 1, wherein The diameter of the second circular groove (8) is the same as the diameter of the center hole (19).

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