Half-coupling disassembling tool

Abstract

The utility model relates to a half-coupling disassembling tool. First connecting holes corresponding to the through holes in number and position are distributed on the base plate; second connecting holes corresponding to the through holes in number and position are distributed in the connecting disc, the chassis can abut against the back face of the flange, and the back face is the face, away from the connecting disc in the axial direction, of the flange; the connecting rods sequentially penetrate through the corresponding second connecting holes, the through holes and the first connecting holes so as to connect the connecting disc, the base disc and the half coupling; the piston driving assembly comprises a cylinder body, a piston and a piston rod, the cylinder body is connected with the connecting disc, the piston is movably connected into the cylinder body, the piston rod comprises a first end and a second end which are axially and oppositely arranged, the first end of the piston rod is connected with the piston, and the second end of the piston rod extends out of the cylinder body and can abut against the end face of the main shaft. According to the utility model, the problem that the flange deforms due to concentrated stress when the half coupling is disassembled is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coupling dismounting technical field especially is half coupling dismounting frock. BACKGROUND

[0002] In the prior art, the laminated flexible coupling is widely used in centrifugal fan. In the conventional daily maintenance and repair process, the half coupling is usually dismounted by three reverse claws hooked on the back surface of the half coupling flange, and a jack is used to lift it out of the main shaft. However, due to the small thickness and high precision requirement of the half coupling flange, the flange is easily deformed or even damaged under the action of concentrated load during dismounting. SUMMARY

[0003] Therefore, the utility model wants to solve the technical problem of overcoming the problem that the flange is easily deformed or even damaged under the action of concentrated load during dismounting of the half coupling in the prior art.

[0004] To solve the above technical problem, the utility model provides a half coupling dismounting frock, the half coupling is installed on the main shaft, and the half coupling comprises a flange provided with a through hole; the dismounting frock comprises:

[0005] a bottom disc which is distributed with first connecting holes corresponding to the number and position of the through holes;

[0006] a connecting disc which is distributed with second connecting holes corresponding to the number and position of the through holes, wherein the bottom disc can abut against the back surface of the flange, and the back surface is a surface of the flange away from the connecting disc in the axial direction;

[0007] a connecting rod which sequentially passes through the corresponding second connecting hole, the through hole and the first connecting hole to connect the connecting disc, the bottom disc and the half coupling;

[0008] a piston driving assembly which comprises a cylinder body, a piston and a piston rod, the cylinder body is connected with the connecting disc, the piston is movably connected in the cylinder body, the piston rod comprises a first end and a second end which are arranged in the axial direction, the first end of the piston rod is connected with the piston, and the second end of the piston rod extends out of the cylinder body and can abut against the end surface of the main shaft.

[0009] In one embodiment of the utility model, a uniform force pad is arranged between the back surface of the flange and the bottom disc.

[0010] In one embodiment of the utility model, the uniform force pad comprises rubber material and has a split structure.

[0011] In one embodiment of the utility model, the bottom disc has a split structure.

[0012] In an embodiment of the utility model, the main shaft is provided with a spherical pad towards the end face of the second end of the piston rod, the second end of the piston rod is spherical, and the spherical pad is provided with a spherical groove suitable for contact matching with the spherical surface.

[0013] In an embodiment of the utility model, the connecting rod is a screw rod, one end of the connecting rod is threadedly connected with the first connecting hole, and the other end is threadedly connected with a fastening nut abutting against the connecting disc.

[0014] In an embodiment of the utility model, the side wall of the cylinder body is provided with an exhaust hole, the cylinder body is provided with a cylinder cover at an end away from the connecting disc, the cylinder cover is provided with an oil passage hole, the cylinder body is provided with a stepped hole, the stepped hole comprises a first hole section and a second hole section with different diameters, the piston rod is in clearance fit with the first hole section, the piston is slidingly connected in the second hole section and divides the second hole section into a first cavity and a second cavity, the first cavity is in communication with the exhaust hole, and the second cavity is in communication with the oil passage hole. First and second sealing members are further arranged between the piston and the second hole section.

[0015] In an embodiment of the utility model, the oil passage hole is a screw hole and is in communication with the outlet of a hydraulic pump, and the outlet of the hydraulic pump is provided with a pressure gauge.

[0016] In an embodiment of the utility model, the outer periphery of the cylinder body is provided with first and second external threads, and the first external thread and the inner hole of the connecting disc and the second external thread and the cylinder cover are connected through threads.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The utility model discloses a half coupling dismounting tool which replaces the reverse claw of the prior art with the bottom disc, and the back of the flange of the half coupling is subjected to the action of the disc surface of the whole bottom disc, so that the force is uniform, the half coupling is changed from three-point force to plane force, and the problem that the flange is deformed due to concentrated force during dismounting is overcome. In addition, the utility model discloses a uniform force pad and a spherical pad, which can avoid the influence of uneven force on the half coupling and the main shaft due to the inclination of the tool installation. ACCURACY OF DRAWINGS

[0019] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to the specific embodiments of the utility model and in combination with the drawings.

[0020] Figure 1 It is the use structure schematic view of the half coupling dismounting tool of the utility model.

[0021] Explanation of the reference signs in the drawings:

[0022] 1. main shaft; 2. half-coupling; 21. flange; 3. chassis; 4. uniform force pad; 5. connecting rod; 6. fastening nut; 7. connecting disc; 8. spherical pad; 9. piston rod; 91. piston; 10. cylinder body; 11. cylinder cover; 101. exhaust hole; 12. first sealing element; 13. second sealing element; 14. first cavity; 15. second cavity; 111. oil passage hole. DETAILED DESCRIPTION

[0023] The utility model will be further explained in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0024] In the utility model, if the direction (up, down, left, right, front and back) is described, it is only for the convenience of describing the technical scheme of the utility model, and is not indicative or suggestive of the technical features indicated must have a specific orientation, structure and operation in a specific orientation, so it cannot be understood as a limitation of the utility model.

[0025] In the utility model, the meaning of "several" is one or more, and the meaning of "multiple" is two or more, "greater than", "less than", "more than" and the like are not included in the number; "above", "below", "within" and the like are included in the number. In the description of the utility model, if "first" and "second" are described, they are only used for the purpose of distinguishing technical features, and cannot be understood as indicative or suggestive of relative importance or implicit indication of the number of indicated technical features or implicit indication of the sequence of indicated technical features.

[0026] In the utility model, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected, or can be electrically connected or capable of communicating with each other; can be the communication or interaction relationship between two elements inside or two elements. The person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0027] Reference Figure 1 As shown in the utility model discloses a half-coupling dismounting tool, the half-coupling 2 is installed on the main shaft 1, the half-coupling 2 includes the flange 21 that is provided with through hole;The dismounting tool includes:

[0028] Chassis 3, the first connecting hole corresponding with the number and position of the through hole is distributed;

[0029] A connecting disc 7 is provided with second connecting holes corresponding to the number and position of the through holes, wherein the bottom disc 3 can abut against the back surface of the flange 21, which is the surface of the flange 21 axially away from the connecting disc 7;

[0030] A connecting rod 5 sequentially passes through the corresponding second connecting hole, the through hole and the first connecting hole to connect the connecting disc 7, the bottom disc 3 and the half-coupling 2.

[0031] A piston driving assembly includes a cylinder 10, a piston 91 and a piston rod 9, the cylinder 10 is connected with the connecting disc 7, the piston 91 is movably connected in the cylinder 10, the piston rod 9 includes a first end and a second end arranged axially opposite, the first end of the piston rod 9 is connected with the piston 91, and the second end of the piston rod 9 extends out of the cylinder 10 and can abut against the end surface of the main shaft 1.

[0032] By adopting the bottom disc 3 to replace the reverse claw in the prior art, since the back surface of the flange 21 of the half-coupling 2 is subjected to the disc surface of the entire bottom disc 3, the force is uniform, the half-coupling 2 is changed from three-point force to plane force, and the problem that the flange 21 is deformed due to concentrated force when the half-coupling 2 is disassembled is overcome.

[0033] In an embodiment, a uniform force pad 4 is arranged between the back surface of the flange 21 and the bottom disc 3, the uniform force pad 4 is made of rubber material and has a split structure, and is convenient to install.

[0034] In an embodiment, the bottom disc 3 has a split structure to facilitate installation on the back surface of the flange 21 of the half-coupling 2.

[0035] In an embodiment, a spherical pad 8 is arranged on the end surface of the main shaft 1 facing the second end of the piston rod 9, the second end of the piston rod 9 is spherical, and the spherical pad 8 is provided with a spherical groove suitable for contact with the spherical surface. Alternatively, the spherical pad 8 can be directly installed on the second end of the piston rod 9.

[0036] By arranging the uniform force pad 4 and the spherical pad 8, the influence of uneven force on the half-coupling 2 and the main shaft 1 caused by the installation of the tooling at an angle can be avoided.

[0037] In an embodiment, the connecting rod 5 is a screw rod, one end of the connecting rod 5 is threadedly connected with the first connecting hole, and the other end is threadedly connected with a fastening nut 6 abutting against the connecting disc 7.

[0038] In one embodiment, the cylinder 10 side wall is provided with an exhaust hole 101, the cylinder 10 is provided with a cylinder cover 11 away from the connecting disc 7, the cylinder cover 11 is provided with an oil hole 111, the cylinder 10 is provided with a stepped hole, the stepped hole includes a first hole section and a second hole section with different diameters, the piston rod 9 is in clearance fit with the first hole section, the piston 91 is slidingly connected in the second hole section and divides the second hole section into a first cavity 14 and a second cavity 15, the first cavity 14 is communicated with the exhaust hole 101, and the second cavity 15 is communicated with the oil hole 111, and the exhaust hole 101 facilitates exhaust pressure relief of the first cavity 14.

[0039] In one embodiment, the oil hole 111 is a threaded hole and is communicated with the outlet of the hydraulic pump, and the outlet of the hydraulic pump is provided with a pressure gauge.

[0040] In one embodiment, the outer periphery of the cylinder 10 is provided with a first outer thread and a second outer thread, and the first outer thread and the inner hole of the connecting disc 7 and the second outer thread and the cylinder cover 11 are connected by threads.

[0041] The utility model discloses a principle: the connecting disc 7, uniform force pad 4, the flange 21 of half coupling 2 and bottom disc 3 are connected through connecting rod 5, and oil hole 111 is connected with manual hydraulic pump. When the hydraulic pump works, the pressure oil enters the second cavity 15, and pushes the piston rod 9 and the spherical pad 8 on the end face of the column main shaft 1, and at the same time, the cylinder cover 11 is pushed right with the cylinder 10 and the connecting disc 7 under the action of pressure oil, so that the bottom disc 3 is pushed right through connecting rod 5 and drives half coupling 2 to move, until half coupling 2 and main shaft 1 are separated. In addition, when the pressure gauge at the outlet of the hydraulic pump reaches the design pressure, half coupling 2 is not pulled, and operation should be stopped immediately, the reason is checked, and operation can be operated again after removing the fault.

[0042] Finally, it should be explained that the above specific embodiments are only used to illustrate the technical scheme of the utility model and are not limited, although the utility model is described in detail with reference to examples, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical scheme of the utility model, and all should be covered in the claim range of the utility model.

Claims

1. A half-coupling dismounting tool, said half-coupling (2) being mounted on a main shaft (1), said half-coupling (2) comprising a flange (21) provided with a through hole; characterized in that, The dismounting tool comprises: a base plate (3) provided with first connecting holes corresponding to the number and position of the through holes; a connecting plate (7) provided with second connecting holes corresponding to the number and position of the through holes, wherein the base plate (3) is capable of abutting against the back surface of the flange (21), the back surface being the surface of the flange (21) away from the connecting plate (7) in the axial direction; a connecting rod (5) sequentially penetrating through the corresponding second connecting hole, the through hole and the first connecting hole to connect the connecting plate (7), the base plate (3) and the half-coupling (2); a piston driving assembly comprising a cylinder (10), a piston (91) and a piston rod (9), the cylinder (10) being connected to the connecting plate (7), the piston (91) being movably connected in the cylinder (10), the piston rod (9) comprising a first end and a second end arranged in the axial direction, the first end of the piston rod (9) being connected to the piston (91), and the second end of the piston rod (9) extending out of the cylinder (10) and capable of abutting against the end surface of the main shaft (1).

2. The half-coupling dismounting tool according to claim 1, characterized in that, A uniform force pad (4) is arranged between the back surface of the flange (21) and the base plate (3).

3. The half-coupling dismounting tool according to claim 2, characterized in that, The uniform force pad (4) comprises rubber material and is in a split structure.

4. The half-coupling dismounting tool according to claim 1, characterized in that, The base plate (3) is in a split structure.

5. The half-coupling dismounting tool according to claim 1, characterized in that, The main shaft (1) is provided with a spherical pad (8) on the end surface facing the second end of the piston rod (9).

6. A semi-coupling dismounting tool according to claim 5, characterized in that The second end of the piston rod (9) is spherical, and the spherical pad (8) is provided with a spherical groove suitable for contact with the spherical surface.

7. The half-coupling dismounting tool according to claim 1, characterized in that, The connecting rod (5) is a screw rod, one end of the connecting rod (5) is threadedly connected to the first connecting hole, and the other end is threadedly connected with a fastening nut (6) abutting against the connecting plate (7).

8. The half-coupling dismounting tool according to claim 1, characterized in that, The cylinder (10) is provided with an exhaust hole (101) in the side wall, one end of the cylinder (10) away from the connecting plate (7) is provided with a cylinder cover (11), the cylinder cover (11) is provided with an oil passage (111), the cylinder (10) is provided with a stepped hole, the stepped hole comprises a first hole section and a second hole section with different diameters, the piston rod (9) is clearance-fitted with the first hole section, the piston (91) is slidingly connected in the second hole section and divides the second hole section into a first cavity (14) and a second cavity (15), the first cavity (14) is in communication with the exhaust hole (101), and the second cavity (15) is in communication with the oil passage (111).

9. A semi-coupling dismounting tool according to claim 8, characterized in that The oil passage (111) is a threaded hole and is in communication with the outlet of a hydraulic pump, and the outlet of the hydraulic pump is provided with a pressure gauge.

10. The half-coupling dismounting tool according to claim 8, characterized in that, The outer periphery of the cylinder (10) is provided with a first external thread and a second external thread, and the first external thread and the inner hole of the connecting plate (7) and the second external thread and the cylinder cover (11) are connected by threads.

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