Operating mechanism high-pressure cylinder piston dismounting device

Abstract

The operating mechanism high-pressure cylinder piston dismounting device comprises a base, a limiting structure used for fixing a piston body is installed on the base, a supporting seat is further arranged on the base, a cantilever is installed on the supporting seat, a lifting device is installed on the cantilever, and a clamping device is installed at the end, close to the base, of the lifting device. The base is used for stabilizing the whole dismounting device, the limiting structure is used for fixing a steel structure part of a piston body, the supporting seat is used for supporting a cantilever to a certain height, the lifting device is used for lifting the clamping device, and the clamping device is used for clamping an annular groove part of a copper structure part. By means of the structure, the copper structure part and the steel structure part of the piston body can be detached and separated conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of operating mechanism maintenance tools, in particular to a disassembly device for a high-pressure cylinder piston of an operating mechanism. Background Art

[0002] During the maintenance of the operating mechanism of a hydropower station, when the sealing ring of the piston body of the high-pressure cylinder of the operating mechanism needs to be replaced as a whole, the copper structure part and the steel structure part of the piston body need to be separated. Since one end of the copper structure part is inserted into the steel structure part, and a sealing ring is installed between the copper structure part and the steel structure part, the copper structure part and the steel structure part are tightly combined. When disassembling the copper structure part, the copper structure part cannot be damaged, so conventional knocking, prying and other methods cannot be used. Therefore, a device for disassembling and separating the copper structure part and the steel structure part of the piston body is designed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to solve the problems existing in the above-mentioned background technology and provide a disassembly device for a high-pressure cylinder piston of an operating mechanism, which can conveniently disassemble and separate the copper structure part and the steel structure part of the piston body.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a high-pressure cylinder piston disassembly device of an operating mechanism, including a base, on which is installed a limiting structure for fixing the piston body, a support seat is also provided on the base, a cantilever is installed on the support seat, a lifting device is installed on the cantilever, and a clamping device is installed on one end of the lifting device close to the base.

[0005] At least two of the limiting structures are provided, and the limiting structures include a rod body and a limiting member. The rod body is fixedly connected to the base, and the limiting member cooperates with the rod body to limit the position.

[0006] The rod body is provided with a hole, and the limiting member is a pin. After the pin is inserted into the hole on the rod body, the piston body is limited. Alternatively, the rod body is a screw rod, and the limiting member is a nut. The nut is screwed onto the screw rod to limit the piston body.

[0007] The rod body is also sleeved with a support ring, and the limiting piece is located above the support ring.

[0008] The cantilever is rotatably connected to the support seat.

[0009] The upper end of the support seat is provided with a notch, a connecting seat is fixedly connected in the notch, a rotating shaft is provided at the lower side of the cantilever, the rotating shaft is movably inserted into the connecting seat, and a limiting block is installed at the lower end of the rotating shaft located at the connecting seat.

[0010] The lifting device comprises a lifting rod, which is connected with the clamping device and is a screw rod. The lifting rod is connected with the cantilever in a sliding manner, and a hand wheel is screwed and installed on the lifting rod at the upper side of the cantilever.

[0011] The clamping device comprises a cross bar, on which two clamping claws are slidably mounted, a hook plate is mounted on one end of the lifting device connected to the clamping device, the cross bar is hooked on the hook plate, and the two clamping claws are respectively located on both sides of the hook plate.

[0012] The utility model has the following beneficial effects:

[0013] The base of the utility model is used to stabilize the entire disassembly device, the limit structure is used to fix the steel structure part of the piston body, the support seat is used to support the cantilever at a certain height, and the lifting device is used to lift the clamping device, and the clamping device is used to clamp the annular groove part of the copper structure part. After the clamping device clamps the annular groove part of the copper structure part, the lifting device lifts the clamping device upward and drives the clamping device to move upward, so that the copper structure part of the piston body can be easily disassembled and separated from the steel structure part. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 3 This is a state diagram used in the present utility model.

[0018] Reference numerals:

[0019] Base 10, support base 11, notch 12, connecting base 13;

[0020] Limiting structure 20, rod body 21, limiting member 22, supporting ring 23;

[0021] Cantilever 30, limit block 31;

[0022] Lifting device 40, lifting rod 41, hand wheel 42, hook plate 43;

[0023] Clamping device 50, cross bar 51, clamping claw 52;

[0024] Piston body 60 , steel structure part 61 , copper structure part 62 , annular groove part 63 . DETAILED DESCRIPTION

[0025] See also Figure 1-3A disassembly device for a piston of a high-pressure cylinder of an operating mechanism, comprising a base 10, a limiting structure 20 for fixing a piston body 60 is installed on the base 10, a support seat 11 is also provided on the base 10, a cantilever 30 is installed on the support seat 11, a lifting device 40 is installed on the cantilever 30, and a clamping device 50 is installed at one end of the lifting device 40 close to the base 10. The base 10 is used to stabilize the entire disassembly device, the limiting structure 20 is used to fix the steel structure part 61 of the piston body 60, the support seat 11 is used to support the cantilever 30 at a height, the support seat 11 is welded to the base 10, the lifting device 40 is used to lift the clamping device 50, and the clamping device 50 is used to clamp the annular groove part 63 of the copper structure part 62. When the clamping device 50 clamps the annular groove part 63 of the copper structure part 62, the lifting device 40 lifts the clamping device 50 upward, drives the clamping device 50 to move upward, and thus pulls the copper structure part 62 upward. Through the above structure, the copper structure part and the steel structure part of the piston body can be easily disassembled and separated.

[0026] In one embodiment, at least two limiting structures 20 are provided, and the limiting structures 20 include a rod body 21 and a limiting member 22. The rod body 21 is fixedly connected to the base 10, and the limiting member 22 cooperates with the rod body 21 to limit. Specifically, the rod body 21 is symmetrically arranged, and the rod body 21 corresponds to the hole on the steel structure part 61.

[0027] When in use, the two rods 21 are respectively passed through the holes on the steel structure part 61, and then the limiting member 22 is installed on the rod 21, so as to limit the steel structure part 61 to prevent the steel structure part 61 from moving when the copper structure part 62 is pulled up.

[0028] In one of the solutions, a hole is provided on the rod body 21 , and the limiting member 22 is a latch pin. After the latch pin is inserted into the hole on the rod body 21 , the piston body 60 is limited.

[0029] In another embodiment, see Figure 1 The rod body 21 is a screw rod, and the limiting member 22 is a nut. The nut is screwed onto the screw rod to limit the piston body 60.

[0030] Furthermore, a support ring 23 is mounted on the rod body 21, and the stopper 22 is located above the support ring 23. When in use, the steel structure 61 is supported on the support ring 23 to prevent the lower end surface of the steel structure 61 from contacting the base 10 and causing wear. Preferably, the support ring 23 is made of nylon or rubber.

[0031] See also Figure 1 , 2 In order to conveniently install and fix the piston body 60 , the cantilever 30 is rotatably connected to the support seat 11 .

[0032] When in use, during the stage of installing and fixing the piston body 60, the cantilever 30 is rotated to one side to facilitate the insertion of the piston body 60. Figure 3 When connected with the copper structure 62 , the cantilever 30 is reset so that the clamping device 50 is aligned with the copper structure 62 .

[0033] In one embodiment, see Figure 1 , 2 The upper end of the support seat 11 is provided with a notch 12, a connection seat 13 is fixedly connected in the notch 12, a rotating shaft is provided at the lower side of the cantilever 30, the rotating shaft is not shown in the figure, a through hole is longitudinally provided on the connection seat 13, the rotating shaft is movably inserted into the connection seat 13, and a limit block 31 is installed at the lower end of the connection seat 13. Specifically, the limit block 31 is installed at the lower end of the rotating shaft by bolts.

[0034] In one embodiment, see 1 and 2, the lifting device 40 includes a lifting rod 41, the lifting rod 41 is connected to the clamping device 50, the lifting rod 41 is a screw rod, the lifting rod 41 is slidably connected to the cantilever 30, and a hand wheel 42 is screwed and installed on the lifting rod 41 at the upper side of the cantilever 30. By rotating the hand wheel 42, the hand wheel 42 and the lifting rod 41 are threadedly engaged, so that the lifting rod 41 moves up and down. When in use, the clamping device 50 is controlled by an operator to limit the rotation of the lifting rod 41.

[0035] In one embodiment, see Figure 1 , 2 The clamping device 50 includes a cross bar 51, on which two clamping claws 52 are slidably mounted, and a hook plate 43 is mounted on one end of the lifting device 40 connected to the clamping device 50. The cross bar 51 is hooked on the hook plate 43, and the two clamping claws 52 are respectively located on both sides of the hook plate 43. The hook plate 43 can be hinged to the lower end of the lifting rod 41, or can be fixed to the lower end of the lifting rod 41. When the two clamping claws 52 move relative to each other, they clamp the annular groove portion 63 of the copper structure portion 62.

[0036] In addition to the above structure, the clamping device 50 may also adopt a clamping device disclosed in CN215445662U. When applied to the present application, the lifting rod 41 is connected to the connecting seat in the document.

[0037] The working principle or action process of the utility model is as follows:

[0038] See also Figure 3 When in use, first rotate the cantilever 30 away, lift the piston body 60, make the two rod bodies 21 pass through the holes on the steel structure part 61 respectively, and then install the limiting member 22 on the rod body 21 to limit the steel structure part 61.

[0039] The cantilever 30 is reset to the normal position, the clamping device 50 is aligned with the copper structure part 62, the two clamping jaws 52 are moved to opposite squares, the hand wheel 42 is turned, and the clamping device 50 is controlled to limit the rotation of the lifting rod 41 at the same time, the clamping device 50 is lowered, and the two clamping jaws 52 of the clamping device 50 are aligned with the annular groove part 63 of the copper structure part 62, and then the two clamping jaws 52 are moved relative to each other to clamp the annular groove part 63 of the copper structure part 62.

[0040] Then, the hand wheel 42 is rotated in the opposite direction, and at the same time, the clamping device 50 is controlled to limit the rotation of the lifting rod 41, and the clamping device 50 gradually rises, thereby pulling out the copper structure part 62.

Claims

1. A device for disassembling a piston of a high-pressure cylinder of an operating mechanism, characterized in that: The invention comprises a base (10), a limiting structure (20) for fixing a piston body (60) being installed on the base (10), a supporting seat (11) being further provided on the base (10), a cantilever (30) being installed on the supporting seat (11), a lifting device (40) being installed on the cantilever (30), and a clamping device (50) being installed on one end of the lifting device (40) close to the base (10).

2. The operating mechanism high pressure cylinder piston disassembly device according to claim 1, characterized in that: At least two of the limiting structures (20) are provided, and the limiting structures (20) comprise a rod body (21) and a limiting member (22); the rod body (21) is fixedly connected to the base (10), and the limiting member (22) cooperates with the rod body (21) to limit the position.

3. The operating mechanism high pressure cylinder piston disassembly device according to claim 2, characterized in that: The rod body (21) is provided with a hole, and the limiting member (22) is a latch pin, which, after being inserted into the hole on the rod body (21), limits the position of the piston body (60); or the rod body (21) is a screw rod, and the limiting member (22) is a nut, which is screwed onto the screw rod to limit the position of the piston body (60).

4. The operating mechanism high pressure cylinder piston disassembly device according to claim 2 or 3, characterized in that: A support ring (23) is also sleeved on the rod body (21), and the limiting member (22) is located above the support ring (23).

5. The operating mechanism high pressure cylinder piston disassembly device according to claim 1, characterized in that: The cantilever (30) is rotatably connected to the support seat (11).

6. The operating mechanism high pressure cylinder piston disassembly device according to claim 5, characterized in that: The upper end of the support seat (11) is provided with a notch (12), a connecting seat (13) is fixedly connected in the notch (12), a rotating shaft is provided on the lower side of the cantilever (30), the rotating shaft is movably inserted into the connecting seat (13), and a limiting block (31) is installed at the lower end of the rotating shaft located at the connecting seat (13).

7. The operating mechanism high pressure cylinder piston disassembly device according to claim 1, characterized in that: The lifting device (40) comprises a lifting rod (41), the lifting rod (41) being connected to the clamping device (50), the lifting rod (41) being a screw rod, the lifting rod (41) being connected to the cantilever (30) in a sliding manner, and a hand wheel (42) being screwedly mounted on the lifting rod (41) at the upper side of the cantilever (30).

8. The operating mechanism high pressure cylinder piston disassembly device according to claim 1 or 7, characterized in that: The clamping device (50) comprises a cross bar (51), on which two clamping claws (52) are slidably mounted, and one end of the lifting device (40) connected to the clamping device (50) is mounted with a hook plate (43), the cross bar (51) is hooked on the hook plate (43), and the two clamping claws (52) are respectively located on both sides of the hook plate (43).

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