Sliding coupling

Abstract

The utility model relates to the field of couplings, in particular to a sliding coupling which comprises a first connecting piece and a second connecting piece, a plurality of protruding teeth are arranged on the end faces, close to each other, of the first connecting piece and the second connecting piece, and the protruding teeth of the first connecting piece and the protruding teeth of the second connecting piece are distributed alternately. A middle piece is arranged between the first connecting piece and the second connecting piece, and a plurality of convex teeth are inserted into the middle piece; a limiting rod is detachably and movably arranged between the first connecting piece and the second connecting piece, and the limiting rod is connected with the middle piece; according to the utility model, the first connecting piece, the second connecting piece and the middle piece are arranged, and the convex teeth of the first connecting piece and the second connecting piece are inserted into the grooves of the middle piece, so that the first connecting piece and the second connecting piece are relatively stably connected, and support is provided for transmission of adjacent shaft bodies; and meanwhile, convenience is provided for adjusting the size of the coupler according to requirements so that the coupler can adapt to adjacent shaft bodies with different distances.

Description

Technical Field

[0001] The utility model relates to the field of couplings, in particular to a sliding coupling. Background Art

[0002] Couplings are used in various equipment such as machine tools, conveyors, and hoists used in machinery manufacturing, generators and steam turbines used in the power industry, and oil drilling rigs and chemical reactors used in the petrochemical industry. These couplings connect two shafts in different devices or components to achieve power transmission. For example, couplings connect motors and reducers, and reducers and working machines, enabling the motor's rotational motion to be transmitted to subsequent equipment, driving the working machine.

[0003] Currently available couplings include flexible coupling-type slip couplings, which, through their inherent structure, allow a certain degree of axial relative displacement between the two connected shafts. For example, a slip coupling disclosed in Chinese Patent No. CN213628551U includes a driving flange, the right end of which is threadedly connected to four bolts, the left ends of which are collectively threadedly connected to a driving half-shaft, the left end of which is movably connected to a propulsion device, the left end of which is movably connected to a shaft groove device, the left end of which is movably connected to a driven half-shaft, the left end of which is threadedly connected to a driven flange, and the left end of which is interlaced with a driven rod. By providing a driving half-shaft and a driven half-shaft, the teeth of the two half-shafts can be matched and engaged with each other, thereby smoothing the transmission of torque and reducing mechanical wear during rotation. Furthermore, by providing a connecting pin to flexibly connect the shaft groove device and the propulsion device, the internal parts of the coupling can be quickly disassembled for repair and replacement if damaged.

[0004] However, the sliding coupling provided by the above patent is not provided with a limiting structure for the driven half-shaft and the driving half-shaft. Therefore, when it can compensate for the displacement of the two shafts, it is very likely that due to unexpected factors such as vibration, the displacement of the two shafts will be large, causing the coupling to disengage, affecting the operation of the working machine. Utility Model Content

[0005] The purpose of the utility model is to provide a sliding coupling, aiming to improve the problem that the sliding coupling is not provided with a limiting structure and is very easy to separate from each other.

[0006] The utility model is implemented as follows: a sliding coupling includes a first connecting member and a second connecting member, wherein the end surfaces of the first connecting member and the second connecting member adjacent to each other are both provided with a plurality of protruding teeth, and the plurality of protruding teeth of the first connecting member and the second connecting member are alternately distributed, and an intermediate member is provided between the first connecting member and the second connecting member, and the plurality of protruding teeth are inserted into the intermediate member;

[0007] A limiting rod is detachably and movably provided between the first connecting piece and the second connecting piece, and the limiting rod is connected to the middle piece.

[0008] Preferably, the convex teeth of the first connecting member and the second connecting member are of equal length and are equal to the thickness of the middle member. The outer side of the middle member is provided with a plurality of evenly distributed grooves, the central angle of the grooves is equal to the central angle of the convex teeth, and the convex teeth extend into the grooves.

[0009] Preferably, the first connecting member includes a first clamping plate and a second clamping plate distributed up and down, and the ends of the first clamping plate and the second clamping plate are connected by bolts. The second connecting member includes a first clamping plate and a second clamping plate distributed up and down, and the ends of the first clamping plate and the second clamping plate are connected by bolts.

[0010] Preferably, the limiting rod is configured as a first screw, countersunk holes are provided on the first clamping plate and the second clamping plate, threaded holes are provided on the first clamping plate and the second clamping plate, the head of the first screw is located in the countersunk hole, and the threaded end is threadedly inserted into the threaded hole.

[0011] Preferably, a through hole is provided on the intermediate piece, and the first screw is provided through the through hole; the length of the countersunk hole is greater than the length of the first screw head, and the length of the threaded hole is greater than the thread length of the first screw.

[0012] Preferably, the limiting rod is configured as a connecting rod, the connecting rod is configured as a T-shaped structure, and is installed on the middle piece, the inner side surfaces of the splint and the clamping plate are provided with slots, and the upper ends and the ends close to each other of the slots of the splint and the clamping plate are configured as openings, and the slots are adapted to the limiting rod, and the end of the limiting rod is located in the slot.

[0013] Preferably, the length of the slot is greater than the length of the head of the limiting rod, and the head of the limiting rod is immersed in the slot.

[0014] Preferably, a threaded connecting hole is provided on the middle piece, a threaded structure is provided on the end of the connecting rod, and the thread is inserted into the threaded connecting hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention provides a first connecting member, a second connecting member, and an intermediate member, and the protruding teeth of the first and second connecting members are inserted into the grooves of the intermediate member. Thus, a relatively stable connection between the first and second connecting members is achieved, providing support for the transmission of adjacent shafts and facilitating the adjustment of the size of the coupling according to needs to accommodate adjacent shafts with different spacings.

[0017] 2. The present invention provides a limiting rod connected to the intermediate member and the connecting member, thereby facilitating the relative movement of the first and second connecting members and compensating for the axial displacement of adjacent shafts while limiting the first and second connecting members. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0020] Figure 3 It is an assembly diagram of the overall structure of the utility model;

[0021] Figure 4 This is a structural diagram of the first connecting member of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the second connecting member of the utility model;

[0023] Figure 6 It is a schematic diagram of the middleware structure of the utility model;

[0024] Figure 7 This is a schematic structural diagram of the first screw of the utility model;

[0025] Figure 8 It is a structural schematic diagram of the second splint of the utility model;

[0026] Figure 9 This is a schematic structural diagram of the intermediate piece and the limiting rod of the utility model;

[0027] Figure 10 This is a second schematic diagram of the middleware structure of the present utility model;

[0028] In the figure: first connecting member 1; first clamping plate 11; second clamping plate 12; countersunk hole 13; slot 14; second connecting member 2; first clamping plate 21; second clamping plate 22; threaded hole 23; intermediate member 3; through hole 31; threaded connecting hole 32; limiting rod 4; screw rod 41; connecting rod 42. DETAILED DESCRIPTION

[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0031] Example 1

[0032] To limit the relative position of coupling components and adjust the coupling length as needed to accommodate shafts with different spacings, this embodiment provides a new sliding coupling. This coupling limits the relative movement of its components while achieving displacement compensation. It also allows for adjustment of the relative positions of the components, allowing the coupling's ends to be respectively sleeved on two shafts. The specific technical solution for this coupling is described below.

[0033] like Figure 1 、 Figure 2 As shown, the coupling comprises a first connecting member 1, a second connecting member 2 and an intermediate member 3. The end faces of the first connecting member 1 and the second connecting member 2 that are close to each other are provided with a plurality of convex teeth. A plurality of evenly distributed grooves are provided on the outer side surface of the intermediate member 3. The grooves and the convex teeth of the first connecting member 1 and the second connecting member 2 are regularly alternately distributed. The length of the convex teeth of the first connecting member 1 and the second connecting member 2 is equal to the thickness of the intermediate member 3. At the same time, the central angle of the groove is equal to the central angle of the convex teeth. Therefore, the convex teeth of the first connecting member 1 and the second connecting member 2 are respectively inserted into adjacent grooves.

[0034] Therefore, with the cooperation of the grooves and the protruding teeth, the intermediate member 3, the first connecting member 1, and the second connecting member 2 can rotate synchronously. With the first connecting member 1 and the second connecting member 2 respectively mounted on the two shafts, transmission of the two shafts is achieved. Because the protruding teeth fit into the grooves, when the two shafts move relative to each other in the axial direction, the first connecting member 1 and the second connecting member 2 also move relative to each other. With the cooperation of the intermediate member 3 and the protruding teeth, displacement is compensated, thereby keeping the first connecting member 1 and the second connecting member 2 relatively stationary.

[0035] like Figure 4 、 Figure 5As shown, in order to be able to quickly disassemble and assemble the first connecting member 1 or the second connecting member 2 as needed and to repair or replace the coupling, the first connecting member 1 includes a first clamping plate 11 and a second clamping plate 12 distributed up and down, and the ends of the first clamping plate 11 and the second clamping plate 12 are connected by bolts. Therefore, by rotating the bolts, the first clamping plate 11 and the second clamping plate 12 can be brought close to each other and tightened to clamp the shaft body.

[0036] At the same time, the second connecting member 2 includes a first clamping plate 21 and a second clamping plate 22 distributed up and down. The ends of the first clamping plate 21 and the second clamping plate 22 are connected by bolts. Similarly, by rotating the bolts, the first clamping plate 21 and the second clamping plate 22 can be brought close to each other and tightened to clamp the shaft.

[0037] like Figure 3 As shown, in order to limit the relative position of the first link 1 and the second link 2 and prevent the first link 1 and the second link 2 from being separated from each other due to unexpected factors such as vibration, a limiting rod 4 is provided between the first link 1 and the second link 2, and the limiting rod 4 is connected to the intermediate member 3. At the same time, the end of the limiting rod 4 is inserted into the first link 1 and the second link 2 and can move relative to the links. Therefore, under the action of the limiting rod 4, the relative movement distance of the first link 1 and the second link 2 can be limited.

[0038] like Figure 4-7 As shown, specifically, the limiting rod 4 is configured as a first screw rod 41 , and countersunk holes 13 are provided on both the first clamping plate 11 and the second clamping plate 12 . The length of the countersunk hole 13 is greater than the length of the head of the first screw rod 41 .

[0039] Therefore, the head of the first screw 41 is movably installed in the countersunk hole 13, and the first clamping plate 21 and the second clamping plate 22 are both provided with threaded holes 23. The length of the threaded hole 23 is greater than the thread length of the first screw 41. The threaded end of the first screw 41 is threadedly inserted into the threaded hole 23. Therefore, the first screw 41 passes through the first connecting member 1 while its end is threadedly inserted into the second connecting member 2. Since the head of the first screw 41 is movably located in the countersunk hole 13, space is provided for the first connecting member 1 and the second connecting member 2 to be relative, and the movement range of the first connecting member 1 and the second connecting member 2 is limited at the same time.

[0040] In addition, a through hole 31 is provided on the middle piece 3, and the first screw 41 is provided through the through hole 31. In order to enable the middle piece 3 to be installed more stably relative to the first screw 41, a rubber layer can be provided on the contact surface of the through hole 31 and the first screw 41 to increase the resistance to their relative movement through the rubber layer, or the middle piece 3 and a screw 41 are connected by bolts. On the premise of achieving a stable connection between the middle piece 3 and the first screw 41, it is convenient to rotate the first screw 41 so that its end is threadedly inserted into the threaded hole 23.

[0041] To limit the relative position of coupling components and adjust the coupling length as needed to accommodate shafts with different spacings, this embodiment provides a new sliding coupling. This coupling limits the relative movement of its components while achieving displacement compensation. It also allows for adjustment of the relative positions of the components, allowing the coupling's ends to be respectively sleeved on two shafts. The specific technical solution for this coupling is described below.

[0042] like Figure 1 、 Figure 2 As shown, the coupling comprises a first connecting member 1, a second connecting member 2 and an intermediate member 3. The end faces of the first connecting member 1 and the second connecting member 2 that are close to each other are provided with a plurality of convex teeth. A plurality of evenly distributed grooves are provided on the outer side surface of the intermediate member 3. The grooves and the convex teeth of the first connecting member 1 and the second connecting member 2 are regularly alternately distributed. The length of the convex teeth of the first connecting member 1 and the second connecting member 2 is equal to the thickness of the intermediate member 3. At the same time, the central angle of the groove is equal to the central angle of the convex teeth. Therefore, the convex teeth of the first connecting member 1 and the second connecting member 2 are respectively inserted into adjacent grooves.

[0043] Therefore, with the cooperation of the grooves and the protruding teeth, the intermediate member 3, the first connecting member 1, and the second connecting member 2 can rotate synchronously. With the first connecting member 1 and the second connecting member 2 respectively mounted on the two shafts, transmission of the two shafts is achieved. Because the protruding teeth fit into the grooves, when the two shafts move relative to each other in the axial direction, the first connecting member 1 and the second connecting member 2 also move relative to each other. With the cooperation of the intermediate member 3 and the protruding teeth, displacement is compensated, thereby keeping the first connecting member 1 and the second connecting member 2 relatively stationary.

[0044] like Figure 4 、 Figure 5 As shown, in order to enable quick disassembly and assembly of the first connecting member 1 or the second connecting member 2 as needed to repair or replace the coupling, the first connecting member 1 includes a first clamping plate 11 and a second clamping plate 12, which are arranged vertically. The ends of the first clamping plate 11 and the second clamping plate 12 are connected by bolts. Therefore, by turning the bolts, the first clamping plate 11 and the second clamping plate 12 can be brought closer to each other and tightened to clamp the shaft. At the same time, the second connecting member 2 includes a first clamping plate 21 and a second clamping plate 22, which are arranged vertically. The ends of the first clamping plate 21 and the second clamping plate 22 are connected by bolts. Similarly, by turning the bolts, the first clamping plate 21 and the second clamping plate 22 can be brought closer to each other and tightened to clamp the shaft.

[0045] like Figure 3As shown, in order to limit the relative position of the first link 1 and the second link 2 and prevent the first link 1 and the second link 2 from being separated from each other due to unexpected factors such as vibration, a limiting rod 4 is provided between the first link 1 and the second link 2, and the limiting rod 4 is connected to the intermediate member 3. At the same time, the end of the limiting rod 4 is inserted into the first link 1 and the second link 2 and can move relative to the links. Therefore, under the action of the limiting rod 4, the relative movement distance of the first link 1 and the second link 2 can be limited.

[0046] like Figure 8-10 As shown, specifically, the limiting rod 4 is set as a connecting rod 42, the connecting rod 42 is set as a T-shaped structure, and is installed on the middle piece 3, the inner side surfaces of the splint and the clamping plate are provided with a card slot 14, and the upper end and the end close to each other of the card slot 14 of the splint and the clamping plate are set to be openings, and the card slot 14 is adapted to the limiting rod 4, and the end of the limiting rod 4 is located in the card slot 14, the length of the card slot 14 is greater than the length of the head of the limiting rod 4, and the head of the limiting rod 4 is immersed in the card slot 14, therefore, under the action of the connecting rod 42, the first connecting piece 1 and the second connecting piece 2 are stably and movably installed relative to the middle piece 3, that is, the relative movement of the first connecting piece 1 and the second connecting piece 2 is limited.

[0047] In order to be able to disassemble the connecting rod 42 according to needs, a threaded connecting hole 32 is provided on the middle piece 3 , and a threaded structure is provided at the end of the connecting rod 42 , and the thread is inserted into the threaded connecting hole 32 .

[0048] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A slip coupling, characterized in that: The invention comprises a first connecting member (1) and a second connecting member (2), wherein the end surfaces of the first connecting member (1) and the second connecting member (2) close to each other are both provided with a plurality of convex teeth, and the plurality of convex teeth of the first connecting member (1) and the second connecting member (2) are alternately distributed, and an intermediate member (3) is provided between the first connecting member (1) and the second connecting member (2), and the plurality of convex teeth are inserted into the intermediate member (3); A limiting rod (4) is detachably and movably provided between the first connecting member (1) and the second connecting member (2), and the limiting rod (4) is connected to the middle member (3).

2. The sliding coupling according to claim 1, characterized in that: The convex teeth of the first connecting member (1) and the second connecting member (2) are of equal length and are equal in thickness to the middle member (3). The outer side surface of the middle member (3) is provided with a plurality of evenly distributed grooves, the central angles of the grooves are equal to the central angles of the convex teeth, and the convex teeth extend into the grooves.

3. The sliding coupling according to claim 2, characterized in that: The first connecting member (1) comprises a first clamping plate (11) and a second clamping plate (12) distributed up and down, and the ends of the first clamping plate (11) and the second clamping plate (12) are connected by bolts. The second connecting member (2) comprises a first clamping plate (21) and a second clamping plate (22) distributed up and down, and the ends of the first clamping plate (21) and the second clamping plate (22) are connected by bolts.

4. The sliding coupling according to claim 3, characterized in that: The limiting rod (4) is configured as a first screw rod (41), a countersunk hole (13) is provided on both the first clamping plate (11) and the second clamping plate (12), a threaded hole (23) is provided on both the first clamping plate (21) and the second clamping plate (22), the head of the first screw rod (41) is located in the countersunk hole (13), and the end portion provided with a thread is threadedly inserted into the threaded hole (23).

5. The sliding coupling according to claim 4, characterized in that: A through hole (31) is provided on the middle piece (3), and the first screw (41) is provided through the through hole (31); the length of the counterbore (13) is greater than the length of the head of the first screw (41), and the length of the threaded hole (23) is greater than the thread length of the first screw (41).

6. The sliding coupling according to claim 3, characterized in that: The limiting rod (4) is configured as a connecting rod (42), the connecting rod (42) is configured as a T-shaped structure and is mounted on the middle piece (3), the inner side surfaces of the clamping plate and the clamping plate are both provided with a card slot (14), and the upper ends and mutually adjacent ends of the card slots (14) of the clamping plate and the clamping plate are both configured as openings, and the card slot (14) is adapted to the limiting rod (4), and the end of the limiting rod (4) is located in the card slot (14).

7. The sliding coupling according to claim 6, characterized in that: The length of the card slot (14) is greater than the length of the head of the limiting rod (4), and the head of the limiting rod (4) is immersed in the card slot (14).

8. The sliding coupling according to claim 7, characterized in that: The middle piece (3) is provided with a threaded connecting hole (32), and the end of the connecting rod (42) is provided with a threaded structure, and the thread is inserted into the threaded connecting hole (32).

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