Disc spring dismounting and mounting device of hydraulic disc spring operating mechanism

Abstract

A disc spring dismounting device of a hydraulic disc spring operating mechanism comprises a supporting frame, a sliding platform and a sliding seat, one end of the sliding platform is installed on the lower side in the supporting frame, the other end of the sliding platform extends out of the supporting frame, the sliding seat is installed on the sliding platform in a directional sliding mode, and a hydraulic oil cylinder is installed on the top of the supporting frame. Piston rods of the hydraulic oil cylinders face one side of the sliding platform, and the hydraulic oil cylinders are connected with the hydraulic pump station through hydraulic pipelines. The auxiliary pressing head comprises a pressing ring and a plurality of supporting blocks arranged on the lower side of the pressing ring, in the using state, the auxiliary pressing head is used for being placed on the upper side of an end flange of the hydraulic disc spring operating mechanism, and a piston rod of the hydraulic oil cylinder pushes the pressing ring. By means of the structure, during operation, the fastening nuts are disassembled and assembled in the supporting frame, people can stand to disassemble and assemble the fastening nuts of the supporting frame, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance tools for operating mechanisms of power stations, in particular to a disc spring disassembly and assembly device for a hydraulic disc spring operating mechanism. Background Art

[0002] The hydraulic disc spring operating mechanism is mainly used to control the on and off of the generator circuit breaker. After a cycle of use, the operating mechanism needs to be maintained, and the disc spring needs to be removed during maintenance.

[0003] Chinese patent document CN117283284A, publication (announcement) date: 2023.12.26, discloses a disc spring fastening nut disassembly and assembly device for a high-voltage circuit breaker operating mechanism, including a support frame unit, a lifting platform unit and a jacking unit, the support frame unit includes a top plate and a bottom plate and a plurality of connecting rods connected between the top plate and the bottom plate, a disc spring limiting hole is provided on the top plate, the lifting platform unit includes a disc spring tray, and a plurality of support wheels are provided on the lower side of the disc spring tray, the jacking unit includes a jack, the jack is installed in the middle of the upper side of the bottom plate, a support rail seat is installed on the bottom plate, and the support rail seat extends out of the bottom plate for a distance, and the disc spring tray can be moved directionally on the support rail seat into the support frame unit through the support wheels. Its feature is that the fastening nut can be easily removed or installed, so that the disc spring can be removed and installed; its disadvantage is that since the operating mechanism is pushed upward, when removing the fastening nut, it can only be removed on the upper side of the top plate. Since this height just exceeds the operating height when a person is standing, it is necessary to set up a stand for standing during operation, which makes it inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a disc spring disassembly and assembly device for a hydraulic disc spring operating mechanism. During operation, by placing an auxiliary pressure head on the upper side of the end flange of the hydraulic disc spring operating mechanism, the piston rod of the hydraulic cylinder pushes the auxiliary pressure head downward, so that the disassembly and installation of the fastening nut are located inside the support frame. A person can perform the disassembly and assembly of the fastening nut of the support frame while standing, which is more convenient to use.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a disc spring disassembly and assembly device of a hydraulic disc spring operating mechanism, comprising a support frame, a sliding platform and a sliding seat, one end of the sliding platform is installed on the inner lower side of the support frame, and the other end extends out of the support frame, the sliding seat is directional and slidably installed on the sliding platform, a hydraulic cylinder is installed on the top of the support frame, the piston rod of the hydraulic cylinder faces one side of the sliding platform, and the hydraulic cylinder is connected to the hydraulic pump station through a hydraulic pipeline;

[0006] It also includes an auxiliary pressure head, which includes a pressure ring and a plurality of support blocks arranged on the lower side of the pressure ring. When in use, the auxiliary pressure head is used to be placed on the upper side of the end flange of the hydraulic disc spring operating mechanism, and the piston rod of the hydraulic cylinder pushes the pressure ring.

[0007] The bottom of the sliding seat is provided with a sliding groove, and the sliding seat is guided to slide on the sliding platform through the sliding groove.

[0008] The bottom of the slide groove is provided with mounting holes at least at four corners, a walking wheel group is installed in the mounting holes, and a spring is installed in the mounting holes and on the upper side of the walking wheel group; the walking wheel group includes a U-shaped frame and a supporting wheel installed in the U-shaped frame, and central shafts are respectively provided at both ends of the axial direction of the supporting wheel, and the central shaft is connected to the U-shaped frame.

[0009] The top surface of the sliding seat is provided with a groove for positioning the hydraulic disc spring operating mechanism.

[0010] Two half rings are installed in the groove.

[0011] The support frame includes a bottom beam, a longitudinal beam, a top beam and a support beam. The two top beams are located above the two bottom beams. The two ends of the top beam and the bottom beam are connected by longitudinal beams respectively. The two support beams are installed on the top of the two top beams. The hydraulic cylinder is installed on the two support beams. The piston rod of the hydraulic cylinder extends downward from between the two support beams. The sliding platform is installed on the two bottom beams.

[0012] The sliding platform is composed of two steel sections, and a support member is installed on the lower side of one end of the two steel sections extending out of the support frame, and baffles are installed on both ends of the upper side of the two steel sections.

[0013] A protective cover is detachably mounted on the outside of the support frame.

[0014] The utility model has the following beneficial effects:

[0015] 1. A hydraulic cylinder is installed on the top of the support frame of the utility model, and the piston rod of the hydraulic cylinder faces one side of the sliding platform. The hydraulic cylinder is connected to the hydraulic pump station through a hydraulic pipeline; it also includes an auxiliary pressure head, which includes a pressure ring and a plurality of support blocks arranged on the lower side of the pressure ring. In the use state, the auxiliary pressure head is used to be placed on the upper side of the end flange of the hydraulic disc spring operating mechanism, and the piston rod of the hydraulic cylinder pushes the pressure ring. During operation, the hydraulic disc spring operating mechanism is first placed on the sliding seat, and the end of the hydraulic disc spring operating mechanism with the disc spring facing upward, and then the hydraulic disc spring operating mechanism is moved to the bottom of the hydraulic cylinder through the sliding seat, and the auxiliary pressure head is placed on the end flange of the hydraulic disc spring operating mechanism. The piston rod of the hydraulic cylinder is driven to extend downward through the hydraulic pump station, and the piston rod abuts against the pressure ring of the auxiliary pressure head, thereby compressing the disc spring. After the disc spring is compressed, the fastening nut can be removed or installed through the gap between the adjacent support blocks. The disassembly and installation of the fastening nuts are located inside the support frame. People can perform the disassembly and installation of the fastening nuts of the support frame while standing, which is more convenient to use.

[0016] 2. The elastic force of the spring in the sliding seat of the utility model can support the weight of the sliding seat and the hydraulic disc spring operating mechanism. When the hydraulic disc spring operating mechanism is placed on the sliding seat, it can move on the sliding platform through the walking wheel group. The sliding seat is easy to move. When the hydraulic cylinder is pressurized and extended, the sliding seat is subjected to greater pressure, the spring contracts, and the slide groove contacts the sliding platform, thereby ensuring the stability of the sliding seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without showing the protective cover.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the sliding seat of the utility model.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of a traveling wheel set installed at the bottom of the sliding seat of the utility model.

[0022] Figure 5 It is a schematic diagram of the main structure of the sliding seat of the utility model.

[0023] Figure 6 for Figure 5 Schematic diagram of the AA section structure.

[0024] Figure 7 This is a schematic diagram of the auxiliary pressure head structure of the utility model.

[0025] In the figure, a support frame 10, a bottom beam 11, a longitudinal beam 12, a top beam 13, a support beam 14, a sliding platform 20, a support member 21, a baffle 22, a sliding seat 30, a slide groove 31, a mounting hole 32, a walking wheel group 33, a U-shaped frame 331 and a support wheel 332, a spring 34, a groove 35, a half ring 36, a hydraulic cylinder 40, a hydraulic pump station 50, a hydraulic pipeline 51, a protective cover 60, a caster 61, an auxiliary pressure head 70, a pressure ring 71, a support block 72, and an end flange 80. DETAILED DESCRIPTION

[0026] See also Figure 1-7 A disc spring disassembly and assembly device of a hydraulic disc spring operating mechanism comprises a support frame 10, a sliding platform 20 and a sliding seat 30. One end of the sliding platform 20 is mounted on the inner lower side of the support frame 10, and the other end extends out of the support frame 10. The sliding seat 30 is mounted on the sliding platform 20 for directional sliding. A hydraulic cylinder 40 is mounted on the top of the support frame 10. The piston rod of the hydraulic cylinder 40 faces one side of the sliding platform 20. The hydraulic cylinder 40 is connected to a hydraulic pump station 50 through a hydraulic pipeline 51.

[0027] It also includes an auxiliary pressure head 70, which includes a pressure ring 71 and a plurality of support blocks 72 arranged on the lower side of the pressure ring 71. When in use, the auxiliary pressure head 70 is used to be placed on the upper side of the end flange 80 of the hydraulic disc spring operating mechanism, and the piston rod of the hydraulic cylinder 40 pushes the pressure ring 71.

[0028] During operation, the hydraulic disc spring operating mechanism is first placed on the sliding seat 30, with one end of the hydraulic disc spring operating mechanism installed with the disc spring facing upwards. Then, the hydraulic disc spring operating mechanism is moved to the bottom of the hydraulic oil cylinder 40 through the sliding seat 30, and an auxiliary pressure head 70 is placed on the end flange 80 of the hydraulic disc spring operating mechanism. The piston rod of the hydraulic oil cylinder 40 is driven to extend downward through the hydraulic pump station 50, and the piston rod abuts against the pressure ring 71 of the auxiliary pressure head 70, thereby compressing the disc spring. Figure 7 After the disc spring is compressed, the fastening nut can be removed or installed through the gap between the adjacent support blocks 72. The removal and installation of the fastening nut are located inside the support frame, and a person can perform the disassembly and assembly of the fastening nut of the support frame while standing, which is more convenient to use.

[0029] Specifically, the hydraulic cylinder 40, the hydraulic pipeline 51 and the hydraulic pump station 50 are all existing technologies.

[0030] See also Figure 3 A slide groove 31 is provided at the bottom of the sliding seat 30, so that the sliding seat 30 is guided to slide on the sliding platform 20 through the slide groove 31. The side walls on both sides of the slide groove 31 are located on both sides of the sliding platform 20, so as to limit the sliding seat 30.

[0031] For further information, see Figure 4The bottom of the slide 31 is provided with mounting holes 32 at least at four corners, and a walking wheel group 33 is installed in the mounting holes 32. A spring 34 is installed in the mounting holes 32 and on the upper side of the walking wheel group 33; the walking wheel group 33 includes a U-shaped frame 331 and a support wheel 332 installed in the U-shaped frame. The two ends of the support wheel 332 are respectively provided with a central axis, and the central axis is connected to the U-shaped frame 331. The elastic force of the spring 34 can support the weight of the sliding seat 30 and the hydraulic disc spring operating mechanism. When the hydraulic disc spring operating mechanism is placed on the sliding seat 30, it can move on the sliding platform 20 through the walking wheel group 33. The sliding seat 30 is easy to move. When the hydraulic oil cylinder 40 is pressurized and extended, the sliding seat 30 is subjected to a large pressure, the spring 34 contracts, and the slide 31 contacts the sliding platform 20, thereby ensuring the stability of the sliding seat 30.

[0032] See also Figure 4 The top surface of the sliding seat 30 is provided with a groove 35 for positioning the hydraulic disc spring operating mechanism, which is used to position the flange ring at the end of the hydraulic disc spring operating mechanism.

[0033] Furthermore, two half rings 36 are installed in the groove 35. By placing half rings 36 with different inner diameters in the groove 35, the flange rings at the ends of hydraulic disc spring operating mechanisms of different models can be positioned.

[0034] See also Figure 2 The support frame 10 includes a bottom beam 11, a longitudinal beam 12, a top beam 13 and a support beam 14. The two top beams 13 are located above the two bottom beams 11. The two ends of the top beam 13 and the bottom beam 11 are connected by the longitudinal beams 12 respectively. The two support beams 14 are installed on the top of the two top beams 13. The hydraulic cylinder 40 is installed on the two support beams 14. The piston rod of the hydraulic cylinder 40 extends downward from between the two support beams 14. The sliding platform 20 is installed on the two bottom beams 11. The support frame 10 is simple to manufacture.

[0035] Furthermore, the sliding platform 20 is two steel sections, and a support member 21 is welded and installed on the lower side of one end of the two steel sections extending out of the support frame 10, and baffles 22 are welded and installed on both ends of the upper side of the two steel sections. The sliding platform 20 is supported by the support member 21, and the moving position of the sliding seat 30 is limited by the baffle 22, which also plays a role in fixing the two steel sections.

[0036] Specifically, the support member 21 and the sliding platform 20 are I-beams.

[0037] See also Figure 1 A protective cover 60 is detachably mounted on the outside of the support frame 10 to prevent the hydraulic disc spring operating mechanism from tipping over or parts from splashing during operation.

[0038] Preferably, the protective cover 60 may be composed of four protective plates, which are detachably mounted on the longitudinal beam 12 by bolts.

[0039] In another preferred implementation, see Figure 1 The protective cover 60 is composed of four protective plates. The protective cover 60 is provided with support frames on the left and right sides of the sliding platform 20, and casters 61 are installed at the lower ends of the support frames. One of the protective plates of the protective cover 60 located in the length direction of the sliding platform 20 can be opened and closed. For example, the protective plate is installed at the ends of the left and right protective plates by bolts, or one side is connected to one of the protective plates on one side by a door shaft, and the other side is connected to the other side protective plate by a lock.

[0040] The working principle or action process of the utility model is as follows:

[0041] During operation, the initial position of the sliding seat 30 is as follows Figure 2 As shown, the hydraulic disc spring operating mechanism is first placed on the sliding seat 30, with one end of the hydraulic disc spring operating mechanism equipped with the disc spring facing upward, and then the hydraulic disc spring operating mechanism is moved to the bottom of the hydraulic cylinder 40 through the sliding seat 30.

[0042] An auxiliary pressure head 70 is placed on the end flange 80 of the hydraulic disc spring operating mechanism, and the piston rod of the hydraulic oil cylinder 40 is driven downward by the hydraulic pump station 50, and the piston rod abuts against the pressure ring 71 of the auxiliary pressure head 70, thereby compressing the disc spring. At this time, the spring 34 in the sliding seat 30 contracts, and the slide groove 31 contacts the sliding platform 20, thereby ensuring the stability of the sliding seat 30.

[0043] See also Figure 7 After the disc spring is compressed, the fastening nut can be removed or installed through the gap between adjacent support blocks 72.

Claims

1. A disc spring disassembly and assembly device for a hydraulic disc spring operating mechanism, comprising a support frame (10), a sliding platform (20) and a sliding seat (30), wherein one end of the sliding platform (20) is mounted on the inner lower side of the support frame (10) and the other end extends out of the support frame (10), and the sliding seat (30) is mounted on the sliding platform (20) in a directionally sliding manner, characterized in that: A hydraulic cylinder (40) is installed on the top of the support frame (10), the piston rod of the hydraulic cylinder (40) faces one side of the sliding platform (20), and the hydraulic cylinder (40) is connected to the hydraulic pump station (50) via a hydraulic pipeline (51); It also includes an auxiliary pressure head (70), which includes a pressure ring (71) and a plurality of support blocks (72) arranged on the lower side of the pressure ring (71). When in use, the auxiliary pressure head (70) is used to be placed on the upper side of the end flange (80) of the hydraulic disc spring operating mechanism, and the piston rod of the hydraulic cylinder (40) pushes the pressure ring (71).

2. A disc spring disassembly and assembly device for a hydraulic disc spring operating mechanism according to claim 1, characterized in that: A sliding groove (31) is provided at the bottom of the sliding seat (30), and the sliding seat (30) is guided to slide on the sliding platform (20) through the sliding groove (31).

3. A disc spring disassembly and assembly device for a hydraulic disc spring operating mechanism according to claim 2, characterized in that: The bottom of the slide groove (31) is provided with mounting holes (32) at least at four corners, a running wheel set (33) is installed in the mounting holes (32), and a spring (34) is installed in the mounting holes (32) and on the upper side of the running wheel set (33); the running wheel set (33) comprises a U-shaped frame (331) and a supporting wheel (332) installed in the U-shaped frame, and the supporting wheel (332) is provided with a central shaft at both ends of the axial direction, and the central shaft is connected to the U-shaped frame (331).

4. The disc spring disassembly and assembly device of the hydraulic disc spring operating mechanism according to claim 1, characterized in that: The top surface of the sliding seat (30) is provided with a groove (35) for positioning the hydraulic disc spring operating mechanism.

5. The disc spring disassembly and assembly device of the hydraulic disc spring operating mechanism according to claim 4, characterized in that: Two half rings (36) are installed in the groove (35).

6. The disc spring disassembly and assembly device of the hydraulic disc spring operating mechanism according to claim 1, characterized in that: The support frame (10) comprises a bottom beam (11), a longitudinal beam (12), a top beam (13) and a support beam (14); the two top beams (13) are located above the two bottom beams (11); the two ends of the top beam (13) and the bottom beam (11) are connected respectively by the longitudinal beam (12); the two support beams (14) are mounted on the top of the two top beams (13); the hydraulic cylinder (40) is mounted on the two support beams (14); the piston rod of the hydraulic cylinder (40) extends downward from between the two support beams (14); and the sliding platform (20) is mounted on the two bottom beams (11).

7. A disc spring disassembly and assembly device for a hydraulic disc spring operating mechanism according to claim 6, characterized in that: The sliding platform (20) is composed of two steel sections, and a support member (21) is installed on the lower side of one end of the two steel sections extending out of the support frame (10), and baffles (22) are installed on both ends of the upper side of the two steel sections.

8. The disc spring disassembly and assembly device of the hydraulic disc spring operating mechanism according to claim 1, characterized in that: A protective cover (60) is detachably mounted on the outside of the support frame (10).

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