Vertical type main distributing valve bush disassembling tool

Abstract

A vertical type main distributing valve bush disassembling tool comprises a plurality of supporting rods, one side of each supporting rod is fixedly connected with a main distributing valve cylinder body, the other side of each supporting rod is fixedly connected with a cross beam, the cross beam is connected with a pit in the surface of a pressing plate through a lead screw, and the main distributing valve bush is connected to the lower portion of the pressing plate. A threaded hole is formed in one end of each supporting rod, and a first through hole is formed in the other end of each supporting rod. By means of the tool, the main distributing valve bush can be effectively prevented from being clamped in the dismounting process, the risk of equipment damage is reduced, and the working efficiency is improved. By means of the tool, the sealing ring can be effectively prevented from being cut in the installation process of the main distributing valve bush, the installation quality is guaranteed, and oil leakage caused by damage of the sealing face between the main distributing valve cylinder body and the main distributing valve bush is avoided.

Description

Technical Field

[0001] The utility model relates to the field of speed regulating systems of hydropower stations, in particular to a vertical main pressure regulating valve bushing disassembly tool. Background Art

[0002] When inspecting a standing main pressure regulating valve at a hydropower station, the staff needs to remove the bushing of the main pressure regulating valve and replace the seal. Since the clearance between the bushing of the main pressure regulating valve and the cylinder of the main pressure regulating valve is very small, the bushing often gets stuck during the disassembly process and needs to be adjusted repeatedly. In particular, the seal is easily cut during the reinstallation of the bushing, so a tooling that can be accurately aligned and saves effort is needed. The operation time for installing or removing the bushing of the main pressure regulating valve is 1 to 2 days. Utility Model Content

[0003] The utility model solves the problem that when the main pressure-distributing valve bushing is installed to the main pressure-distributing valve cylinder, the matching clearance between the main pressure-distributing valve bushing and the main pressure-distributing valve cylinder is very small, and the outer wall of the main pressure-distributing valve bushing is easy to rub against the inner wall of the main pressure-distributing valve cylinder, resulting in damage to the sealing surface of the main pressure-distributing valve cylinder and the main pressure-distributing valve bushing, causing scratches, burrs, etc., leading to oil leakage and other problems, and solves the problem that the main pressure-distributing valve bushing and the main pressure-distributing valve cylinder are difficult to align and the seal is easy to be cut during the disassembly and assembly process. Therefore, a vertical main pressure-distributing valve bushing disassembly tool is designed for disassembling the main pressure-distributing valve bushing to reduce the risk of the main pressure-distributing valve seal being easily cut during disassembly and assembly.

[0004] In order to solve the above problems, the present application is implemented through the following technical solutions:

[0005] A vertical main pressure regulating valve bushing disassembly tool comprises a plurality of support rods, one side of the support rods is fixedly connected to the main pressure regulating valve cylinder body, and the other side of the support rods is fixedly connected to a cross beam, the cross beam is connected to a pit on the surface of a pressure plate through a screw rod, and the main pressure regulating valve bushing is connected below the pressure plate.

[0006] A threaded hole is provided at one end of each support rod, and a first through hole is provided at the other end of each support rod.

[0007] The crossbeam is provided with two second through holes, two third through holes and two first threaded holes, and the second through holes are connected to the threaded holes by bolts.

[0008] There are two support rods.

[0009] Second threaded holes are provided on both sides of the main pressure regulating valve bushing, and the two second threaded holes are respectively located directly below the two third through holes.

[0010] The pressing plate is provided with two pits, and both sides of the pressing plate are semicircular arc structures, and the two pits are respectively located directly below the two first threaded holes.

[0011] The main pressure regulating valve cylinder body is provided with a hollow groove, and the difference between the inner diameter of the hollow groove of the main pressure regulating valve cylinder body and the outer diameter of the bushing is 0.04-0.10 mm.

[0012] The screw rod is provided with a washer and a nut.

[0013] The pressure plate and the main pressure regulating valve bushing have the same outer diameter.

[0014] Preferably, the support rod is connected to the main pressure regulating valve cylinder through a bolt and the first through hole.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The tooling can effectively prevent the main pressure regulating valve bushing from getting stuck during the disassembly process, reduce the risk of equipment damage, and improve work efficiency.

[0017] 2. The tooling can effectively prevent the sealing ring of the main pressure distribution valve bushing from being cut during installation, thereby ensuring the installation quality and preventing the sealing surface between the main pressure distribution valve cylinder body and the main pressure distribution valve bushing from being damaged and causing oil leakage.

[0018] 3. The tooling has the advantages of simple structure and easy operation, which can effectively save labor and shorten the operation time of installing or removing the bushing of the main pressure regulating valve to less than half an hour. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 (a) is the front view of the support rod of the main pressure regulating valve bushing removal tool;

[0020] Figure 1 (b) is a left view of the support rod of the main pressure regulating valve bushing removal tool;

[0021] Figure 2 (a) is the front view of the crossbeam of the main pressure regulating valve bushing removal tool;

[0022] Figure 2 (b) is a top view of the crossbeam of the main pressure regulating valve bushing removal tooling;

[0023] Figure 3 (a) is the front view of the pressure plate of the main pressure regulating valve bushing removal tool;

[0024] Figure 3 (b) is a top view of the pressure plate of the main pressure regulating valve bushing removal tool;

[0025] Figure 4 It is a schematic diagram of the combined structure when disassembling the main pressure regulating valve bushing disassembly tool;

[0026] Figure numerals: support rod 1, threaded hole 2, first through hole 3, cross beam 4, second through hole 5, third through hole 6, first threaded hole 7, pressure plate 8, pit 9, bushing 10, main pressure regulating valve cylinder 11, screw rod 12, second threaded hole 13. DETAILED DESCRIPTION

[0027] It should be understood that the orientation or positional relationship indicated by the terms "surface, directly below, one side, below, one end" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, what is described in the description of the present invention is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. The dotted lines in the drawings of the present application are made for the convenience of clearly describing the internal structure of the device. The gaskets and nuts, bolts, main pressure-distributing valve bushings, and main pressure-distributing valve cylinders provided on the screw rod of the present application can be purchased on the existing market, and the specific internal structure will not be described in detail.

[0029] Example 1

[0030] like Figure 1~Figure 4 As shown, a vertical main pressure regulating valve bushing disassembly tool comprises a plurality of support rods 1, one side of each support rod 1 is fixedly connected to the main pressure regulating valve cylinder 11, the other side of each support rod 1 is fixedly connected to the cross beam 4, the cross beam 4 is connected to the pit 9 on the surface of the pressure plate 8 through the screw rod 12, and the main pressure regulating valve bushing 10 is connected below the pressure plate 8. A threaded hole 2 is provided at one end of each support rod 1, and a first through hole 3 is provided at the other end of each support rod 1.

[0031] The crossbeam 4 is provided with two second through holes 5, two third through holes 6 and two first threaded holes 7, and the second through hole 5 is connected to the threaded hole 2 by bolts. There are two support rods 1. Second threaded holes 13 are provided on both sides of the main pressure-distributing valve bushing 10, and the two second threaded holes 13 are respectively located directly below the two third through holes 6. The pressure plate 8 is provided with two pits 9, and the pressure plate 8 has a semicircular arc structure on both sides, and the two pits 9 are respectively located directly below the two first threaded holes 7. The main pressure-distributing valve cylinder body 11 is provided with a hollow groove, and the difference between the inner diameter of the hollow groove of the main pressure-distributing valve cylinder body 11 and the outer diameter of the bushing 10 is 0.04~0.10mm. The screw rod 12 is provided with a gasket and a nut. The pressure plate 8 and the main pressure-distributing valve bushing 10 have the same outer diameter. The support rod 1 is connected to the main pressure-distributing valve cylinder body 11 with the first through hole 3 by bolts.

[0032] Example 2

[0033] The device consists of three parts: a support rod 1, a crossbeam 4, and a pressure plate 8. Figure 1~Figure 4 As shown. The support rod 1 is used to bear the weight of the bushing 10 and position it, and can be connected to the main pressure regulating valve cylinder 11 by bolts; the crossbeam 4 is mounted on the support rod 1, and the crossbeam 4 is designed with two third through holes 6 concentric with the second threaded hole 13 on the surface of the bushing 10, and two first threaded holes 7 concentric with the pressure plate 8. The two sides of the pressure plate 8 are designed as semicircular arc structures, and the outer diameter is equal to the outer diameter of the bushing 10.

[0034] The main pressure-distributing valve cylinder 11 is hollow inside, and the bushing 10 can be snugly inserted into the hollow groove inside the main pressure-distributing valve cylinder 11. Preferably, the difference between the inner diameter of the hollow groove of the main pressure-distributing valve cylinder 11 and the outer diameter of the bushing 10 is 0.04mm-0.10mm, so as to ensure uniform force and to ensure that the bushing 10 is not easily stuck in the hollow groove of the main pressure-distributing valve cylinder 11. The main pressure-distributing valve bushing 10 is also hollow inside, and when the pressure plate 8 and the main pressure-distributing valve bushing 10 have the same outer diameter, when the pressure plate 8 applies external force to the main pressure-distributing valve bushing 10, the outer edge of the main pressure-distributing valve bushing 10 is uniformly stressed.

[0035] The specific implementation process is as follows:

[0036] See also Figure 4 , the disassembly process of the bushing 10 of the main pressure regulating valve is as follows: symmetrically connect the two support rods 1 to the main pressure regulating valve cylinder body 11 with bolts through the first through holes 3; connect the crossbeam 4 and the support rod 1 with bolts through the threaded holes 2 and the second through holes 5; after passing the two screw rods 12 through the third through holes 6 on the crossbeam 4, insert them into the second threaded holes 13 on the surface of the bushing 10 of the main pressure regulating valve and tighten them; screw the gasket and the nut into the screw rod 12 to contact the upper side of the crossbeam 4; use two wrenches to rotate the nuts in the tightening direction at the same time and keep the angle of each rotation consistent, so that the bushing 10 will rise smoothly; when the bushing 10 is separated from the main pressure regulating valve cylinder body 11, use a hook with a chain to lift it and place it on a flat surface.

[0037] Installation process of main pressure-regulating valve bushing 10: put the main pressure-regulating valve bushing 10 into the main pressure-regulating valve cylinder 11; place the pressure plate 8 on the main pressure-regulating valve bushing 10; pass the two screw rods 12 through the first threaded holes 7 on the crossbeam 4 against the pits 9 on the surface of the pressure plate 8; screw two nuts on each screw rod 12 as back caps; use two wrenches to rotate the nuts in the tightening direction at the same time, and keep the angle of each rotation consistent, so that the force on the pressure plate 8 will be evenly transmitted to the main pressure-regulating valve bushing 10, so that the main pressure-regulating valve bushing 10 will enter the main pressure-regulating valve cylinder 11 smoothly and evenly.

[0038] This tooling saves time, effort and worry, can effectively improve work efficiency and reduce installation risks.

Claims

1. A vertical main pressure regulating valve bushing disassembly tool, comprising a plurality of support rods (1), characterized in that: One side of the support rod (1) is fixedly connected to the main pressure regulating valve cylinder body (11), and the other side of the support rod (1) is fixedly connected to the crossbeam (4); the crossbeam (4) is connected to the pit (9) on the surface of the pressure plate (8) through a screw rod (12); and the main pressure regulating valve bushing (10) is connected below the pressure plate (8).

2. According to claim 1, a vertical main pressure regulating valve bushing disassembly tool is characterized in that: One end of each support rod (1) is provided with a threaded hole (2), and the other end of each support rod (1) is provided with a first through hole (3).

3. According to claim 1, a vertical main pressure regulating valve bushing disassembly tool is characterized in that: The crossbeam (4) is provided with two second through holes (5), two third through holes (6) and two first threaded holes (7), and the second through holes (5) are connected to the threaded holes (2) via bolts.

4. According to claim 1, a vertical main pressure regulating valve bushing disassembly tool is characterized in that: There are two support rods (1).

5. According to claim 1, a vertical main pressure regulating valve bushing disassembly tool is characterized in that: Second threaded holes (13) are provided on both sides of the main pressure regulating valve bushing (10), and the two second threaded holes (13) are respectively located directly below the two third through holes (6).

6. According to claim 1, a vertical main pressure regulating valve bushing disassembly tool is characterized in that: The pressing plate (8) is provided with two recesses (9), and the two sides of the pressing plate (8) are semicircular arc structures. The two recesses (9) are respectively located directly below the two first threaded holes (7).

7. According to claim 1, a vertical main pressure regulating valve bushing disassembly tool is characterized in that: The main pressure regulating valve cylinder body (11) is provided with a hollow groove, and the difference between the inner diameter of the hollow groove of the main pressure regulating valve cylinder body (11) and the outer diameter of the bushing (10) is 0.04-0.10 mm.

8. The vertical main pressure regulating valve bushing disassembly tool according to claim 1, characterized in that: The screw rod (12) is provided with a washer and a nut.

9. The vertical main pressure regulating valve bushing disassembly tool according to claim 1, characterized in that: The pressure plate (8) and the main pressure regulating valve bushing (10) have the same outer diameter.

10. The vertical main pressure regulating valve bushing disassembly tool according to claim 1, characterized in that: The support rod (1) is connected to the main pressure regulating valve cylinder body (11) through a bolt and the first through hole (3).

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