Maintenance and disassembly equipment for valve of power plant

Abstract

The invention relates to the technical field of valve overhaul and disassembly, in particular to power plant valve overhaul and disassembly equipment. Comprising a bearing plate, a one-way telescopic rod, a bending rod, a dismounting device, a semicircular plate, a bending rod, a torsional spring, a sliding groove, a hexagonal sleeve and an adjusting assembly. The bolt dismounting device can solve the following problems in the process in the prior art that a plurality of bolts cannot be dismounted at the same time, and the dismounting efficiency is low; after overhauling is completed, the nut cannot be installed and reset, and manual reset is needed; bolts at different intervals can be dismantled when a valve is dismantled, and the application range of the equipment is greatly widened; according to the device, a plurality of hexagonal sleeves are driven to rotate by driving a movable chain and a transmission gear at the same time, so that a bolt is disassembled, quick disassembly of a valve is realized, and the disassembly efficiency is greatly improved; the nut is locked through the hexagonal hole in the dismounting plate, and the situation that the nut and the bolt rotate synchronously, and dismounting of the bolt is affected can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of valve maintenance and disassembly, and in particular to a valve maintenance and disassembly device for a power plant. Background Art

[0002] In large industrial facilities such as power plants, valves are an important part of the pipeline system. The operating environment of the pipeline system of a power plant is usually harsh. The valves are under high load for a long time and are prone to problems such as wear, corrosion, and sealing failure. Therefore, the valves need to be inspected and disassembled regularly. The valves are usually connected to the pipeline through flanges and bolts.

[0003] However, the existing valve maintenance and disassembly equipment usually has some problems in daily use. With the development of science and technology, technical personnel in related fields have also optimized the valve maintenance and disassembly equipment in a large number of ways to solve some problems that different consumer groups are concerned about. In order to make a more accurate comparison, a Chinese patent with publication number CN219054277U discloses a multifunctional tool for valve maintenance and disassembly; including: a motor box, the motor box is provided with a box door, a detachable servo motor is arranged in the motor box, the servo motor is connected to a transmission rod, the transmission rod is connected to a cross bar, the cross bar is connected to a connecting rod, the connecting rod is connected to a ferrule, the ferrule is connected to a threaded pipe, the threaded pipe is threadedly connected to a threaded rod, and the threaded rod is connected to a clamping assembly; when it is used, through the setting of the clamping assembly, the clip is attached to the connecting nut of the valve, the knob is turned, the threaded rod is translated inside the threaded pipe, the clip is driven to contract, and the clip is tightly attached to the connecting nut of the valve, so as to achieve the effect of clamping nuts of different sizes, facilitate disassembly, and increase the scope of use. After the servo motor is powered on, the connecting rod rotates, the threaded pipe rotates, and the clamping assembly rotates, thereby loosening and disassembling the connecting nut of the valve, and taking out the gate, making it convenient for personnel to inspect the internal structure of the valve body, saving manpower and time, and improving the inspection efficiency of the valve.

[0004] However, the above-mentioned prior art has some shortcomings in the actual use of valve maintenance and disassembly methods: 1. Although the above-mentioned prior art achieves the purpose of loosening and disassembling the connecting nut of the valve by rotating the clamping assembly, it is unable to disassemble multiple bolts at the same time, and the disassembly efficiency is low.

[0005] 2. Although the above-mentioned prior art can disassemble the connecting nut of the valve, it is impossible to reinstall the nut after the inspection is completed, and manual resetting is required.

[0006] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing valve maintenance and disassembly technologies. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a power plant valve maintenance and disassembly device, comprising a bearing plate, a plurality of driving wheels distributed in a rectangular shape are installed at the bottom of the bearing plate, two symmetrically distributed one-way telescopic rods are installed at the upper end of the bearing plate, a bending rod is connected to the telescopic end of the one-way telescopic rod, and a disassembly device is connected to the bottom of the bending rod;

[0008] The disassembly device includes a clamping piece installed at the bottom of the bending rod, the clamping piece includes two semicircular plates, the two semicircular plates are hinged to the bending rod, a torsion spring is installed at the hinge between the semicircular plates and the bending rod, a plurality of sliding grooves distributed along the circumference of the axis are opened on the semicircular plate, a hexagonal sleeve is slidably connected in the sliding groove, and adjustment components are installed on the back sides of the two clamping pieces, and the adjustment components are movably connected to the semicircular plates.

[0009] Preferably, a sliding groove is provided on the upper end of the bearing plate, two one-way telescopic rods slide in the sliding groove, two-way telescopic rods are installed on opposite sides of the two one-way telescopic rods, and two telescopic ends of the two-way telescopic rods are connected to the one-way telescopic rod.

[0010] Preferably, the adjustment assembly includes an adjustment plate movably connected to the semicircular plate, the adjustment plate is located on the side away from the center of the supporting plate, and both the adjustment plate and the middle of the semicircular plate are provided with clearance holes. The side of the adjustment plate away from the semicircular plate is provided with multiple adjustment grooves corresponding to the sliding grooves, and the hexagonal sleeve is located on the side of the adjustment groove away from the axis of the adjustment plate, and the adjustment groove is gradually inclined in a clockwise direction away from the end of the hexagonal sleeve.

[0011] Preferably, a pull rod is hinged on one side of the semicircular plate away from the adjustment plate, two pull rods are hinged on one side of the semicircular plate away from the semicircular plate, and the upper end of the cross rod is connected to a T-shaped rod.

[0012] Preferably, a plurality of tensioning grooves are provided between two adjacent hexagonal sleeves on the same adjusting plate, and the plurality of tensioning grooves are distributed circumferentially along the axis of the adjusting plate. A sliding block is slidably connected in the tensioning groove, and a supporting spring is installed between the sliding block and the tensioning groove. A linkage shaft is installed on the side of the sliding block away from the semicircular plate, and transmission gears are both sleeved on the linkage shaft and the outer wall of the hexagonal sleeve. The transmission gears on the two adjacent hexagonal sleeves are jointly sleeved on a transmission chain, and the rotating gear on the linkage shaft is located in the middle of the transmission chain.

[0013] Preferably, the two one-way telescopic rods are installed with bending plates on the back sides, the two bending plates are provided with giveway grooves on the opposite sides, and slide rail grooves are provided on the opposite sides of the bending plates. A placement block is slidably connected in the slide rail groove. Two driving motors are installed on the side of the placement block away from the bending plate through a motor seat, and any one of the linkage shafts on the adjustment plate is connected to the output shaft of the driving motor.

[0014] Preferably, a plurality of connecting plates are installed on the side of the semicircular plate away from the adjusting plate, the connecting plates are sleeved on the outer wall of the hexagonal sleeve, a spring rod is installed on the side of the connecting plate away from the semicircular plate, a disassembly plate is installed on the side of the spring rod away from the connecting plate, and a hexagonal hole corresponding to the hexagonal sleeve is opened on the disassembly plate.

[0015] Preferably, a guide plate is installed on the side of the disassembly plate away from the connecting plate, and the guide plate is gradually inclined from the side away from the disassembly plate to the side close to the axis of the semicircular plate.

[0016] Preferably, a blocking plate is installed on one side of the hexagonal sleeve close to the bending plate, a sliding plate is slidably connected inside the hexagonal sleeve, and a compression spring is connected between the sliding plate and the blocking plate.

[0017] Preferably, a receiving groove is provided on the inner wall of the hexagonal sleeve away from the blocking plate, a semicircular block is slidably connected in the receiving groove, and a supporting spring is connected between the semicircular block and the receiving groove.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. The present invention rotates the adjusting plate so that the adjusting groove drives the hexagonal sleeve to move along the sliding groove toward the side close to the axis of the semicircular plate, so that the spacing between the multiple hexagonal sleeves is equidistantly contracted, so that the hexagonal sleeves are aligned with the bolts on the valve, and the bolts with different spacings can be removed when the valve is removed, which greatly improves the application scope of the present device.

[0020] 2. The present invention drives multiple hexagonal sleeves to rotate simultaneously through the transmission chain and the transmission gear. During the rotation of the multiple hexagonal sleeves, the bolts are driven to rotate so as to be disassembled, thereby separating the valve and the pipeline, realizing rapid disassembly of the valve, and greatly improving the disassembly efficiency.

[0021] 3. The present invention locks the nut through the hexagonal hole on the disassembly plate, so that the hexagonal sleeve can prevent the nut and the bolt from rotating synchronously during the disassembly of the bolt, thereby greatly improving the disassembly effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure between the one-way telescopic rod and the two-way telescopic rod of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of the regulating component of the present invention.

[0026] Figure 4It is a schematic diagram of the structure between the hexagonal sleeve and the linkage shaft of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the bent plate of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure between the driving motor and the placement block of the present invention.

[0029] Figure 7 It is a schematic diagram of the structure between the T-shaped rod and the semicircular plate of the present invention.

[0030] Figure 8 It is a structural schematic diagram of the hexagonal sleeve of the present invention.

[0031] Fig. 9 The present invention Figure 8 A partial enlarged view of point A.

[0032] In the figure, 1, bearing plate; 11, driving wheel; 12, one-way telescopic rod; 13, bending rod; 2, disassembly device; 21, clamping member; 211, semicircular plate; 22, sliding groove; 23, hexagonal sleeve; 231, blocking plate; 232, sliding plate; 233, extrusion spring; 234, receiving groove; 235, semicircular block; 236, supporting spring; 24, connecting plate; 25, spring rod; 26, disassembly plate; 27, hexagonal hole; 28, Guide plate; 3. Adjustment assembly; 31. Slide groove; 32. Two-way telescopic rod; 33. Adjustment plate; 34. Clearance hole; 35. Adjustment groove; 36. Pull rod; 37. Cross bar; 38. T-bar; 41. Tensioning groove; 42. Sliding block; 43. Support spring; 44. Linkage shaft; 45. Transmission gear; 46. Transmission chain; 47. Bending plate; 471. Slide rail groove; 472. Placement block; 48. Clearance groove; 49. Drive motor. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 9 Embodiments of the present invention are described in detail.

[0034] The embodiment of the present application discloses a valve maintenance and disassembly equipment for a power plant. It should be noted that the valve maintenance and disassembly equipment of the present application is mainly used in the process of valve maintenance and disassembly. In terms of technical effect, it can simultaneously drive multiple hexagonal sleeves 23 to rotate through the transmission chain and the transmission gear 45. During the rotation of the multiple hexagonal sleeves 23, the bolts are driven to rotate to be disassembled, thereby separating the valve and the pipeline and realizing the rapid disassembly of the valve; in particular, when disassembling the valve, bolts with different spacings can be removed, which greatly improves the application scope of the equipment; further, the valve maintenance and disassembly equipment can also lock the nut through the hexagonal hole 27 on the disassembly plate 26, so that the hexagonal sleeve 23 can prevent the nut and the bolt from rotating synchronously and affecting the disassembly of the bolt during the disassembly of the bolt, thereby greatly improving the disassembly effect.

[0035] Embodiment 1:

[0036] Reference Figure 1 As shown, a power plant valve maintenance and disassembly equipment comprises a bearing plate 1, a plurality of driving wheels 11 distributed in a rectangular shape are installed at the bottom of the bearing plate 1, two symmetrically distributed one-way telescopic rods 12 are installed at the upper end of the bearing plate 1, the telescopic end of the one-way telescopic rod 12 is connected to a bending rod 13, the bottom of the bending rod 13 is connected to a disassembly device 2, the disassembly device 2 comprises a clamping member 21 installed at the bottom of the bending rod 13, the clamping member 21 comprises two semicircular plates 211, the two semicircular plates 211 are hinged to the bending rod 13, a torsion spring (not shown in the figure) is installed at the hinge between the semicircular plates 211 and the bending rod 13, a plurality of sliding grooves 22 distributed along the circumference of the axis thereof are opened on the semicircular plate 211, a hexagonal sleeve 23 is slidably connected in the sliding groove 22, and an adjusting assembly 3 is installed on the opposite sides of the two clamping members 21, and the adjusting assembly 3 is movably connected to the semicircular plate 211.

[0037] It should be noted that the torsion spring always applies opposite torsional forces to the two semicircular plates 211, so that the two semicircular plates 211 can automatically close after losing the limit; in the initial state, the two semicircular plates 211 are in a closed state under the action of the torsion spring, and the hexagonal sleeve 23 is located on the side of the sliding groove 22 away from the center of the semicircular plate 211.

[0038] In the specific implementation process, first push the supporting plate 1, and push the supporting plate 1 to the bottom of the valve pipe that needs to be disassembled through the driving wheel 11, so that the disassembly device 2 is located at the upper end of the valve; then open the two semicircular plates 211, pull the one-way telescopic rod 12, and the telescopic end of the one-way telescopic rod 12 drives the bending rod 13 and the two semicircular plates 211 to descend, and close the two semicircular plates 211, so that the semicircular plates 211 are sleeved on the outer wall of the pipe; rotate the adjusting component 3, and the adjusting component 3 drives the multiple hexagonal sleeves 23 to slide along the sliding groove 22, so that the multiple hexagonal sleeves 23 are aligned with the bolts, and then rotate the multiple hexagonal sleeves 23 to disassemble the multiple bolts at the same time, thereby realizing the disassembly of bolts with different spacings. Furthermore, by disassembling multiple bolts at the same time, the disassembly speed is greatly improved.

[0039] Reference Figure 2 and Figure 3 As shown, in order to be able to disassemble bolts with different spacings, an adjustment component 3 is provided in this embodiment; specifically, a sliding groove 31 is opened at the upper end of the load-bearing plate 1, and two one-way telescopic rods 12 are located in the sliding groove 31 for sliding, and two-way telescopic rods 32 are installed on the opposite sides of the two one-way telescopic rods 12. The two telescopic ends of the two-way telescopic rods 32 are connected to the one-way telescopic rod 12, and the adjustment component 3 includes an adjustment plate 33 movably connected to the semicircular plate 211, and the adjustment plate 33 is located on the side away from the center of the load-bearing plate 1. A clearance hole 34 is provided in the middle of the plate 33 and the semicircular plate 211. A plurality of adjustment grooves 35 corresponding to the sliding grooves 22 are provided on the side of the adjustment plate 33 away from the semicircular plate 211. The hexagonal sleeve 23 is located on the side of the adjustment groove 35 away from the axis of the adjustment plate 33. The adjustment groove 35 is gradually inclined in a clockwise direction at one end away from the hexagonal sleeve 23. A pull rod 36 is hinged on the side of the semicircular plate 211 away from the adjustment plate 33. A cross bar 37 is hinged on the two pull rods 36 away from the side of the semicircular plate 211. A T-shaped rod 38 is connected to the upper end of the cross bar 37.

[0040] In the specific implementation process, the T-bar 38 is pulled upward, and the T-bar 38 drives the cross bar 37 to move upward. During the upward movement of the cross bar 37, the two pull rods 36 pull the semicircular plate 211 to move synchronously. The semicircular plate 211 cannot move upward under the limit of the bending rod 13, so that the semicircular plate 211 rotates away from the hinge with the bending rod 13 under the pulling of the pull rod 36, so that the semicircular plate 211 is opened, and then the one-way telescopic rod 12 is pressed downward, so that the semicircular plate 211 moves to the outer wall of the valve pipe to be disassembled, and then the T-bar 38 is released, and the semicircular plate 211 is opened. Under the action of the torsion spring, the hexagonal sleeve 23 moves toward each other, so that the giving way groove 48 is sleeved on the outer wall of the valve pipe to be disassembled, and then the adjusting plate 33 is rotated. The hexagonal sleeve 23 cannot move circumferentially under the limitation of the sliding groove 22, so that the adjusting groove 35 on the adjusting plate 33 drives the hexagonal sleeve 23 to move along the sliding groove 22 to the side close to the axis of the semicircular plate 211, so that the spacing between the multiple hexagonal sleeves 23 is equidistantly contracted, so that the hexagonal sleeve 23 is aligned with the bolts on the valve, and the bolts with different spacings can be removed when the valve is removed, which greatly improves the application range of the device.

[0041] Then, the two-way telescopic rod 32 is pulled, and the two telescopic ends of the two-way telescopic rod 32 are contracted, and the two telescopic ends of the two-way telescopic rod 32 drive the two unidirectional telescopic rods 12 to move toward each other, and the unidirectional telescopic rod 12 slides along the sliding groove 31. The unidirectional telescopic rod 12 drives the semicircular plate 211, the adjustment plate 33 and the hexagonal sleeve 23 to move synchronously toward the side close to the bolt through the bending rod 13, so that the hexagonal sleeve 23 is sleeved on the end of the bolt, and then multiple hexagonal sleeves 23 are rotated at the same time, and the hexagonal sleeves 23 drive the bolts to rotate, thereby rotating the bolts out, thereby realizing the rapid disassembly of the valve.

[0042] Reference Figure 4 , Figure 5 and Figure 6 As shown, in order to be able to remove all the bolts at the same time, based on this, in the present embodiment, a plurality of tensioning grooves 41 are opened between two adjacent hexagonal sleeves 23 on the same adjusting plate 33, and the plurality of tensioning grooves 41 are distributed along the circumference of the axis of the adjusting plate 33. A sliding block 42 is slidably connected in the tensioning groove 41, and a supporting spring 43 is installed between the sliding block 42 and the tensioning groove 41. A linkage shaft 44 is installed on the side of the sliding block 42 away from the semicircular plate 211, and a transmission gear 45 is sleeved on the outer wall of the linkage shaft 44 and the hexagonal sleeve 23. The transmission gears 45 on the two adjacent hexagonal sleeves 23 are jointly sleeved with a transmission chain 46, and the rotating gear on the linkage shaft 44 is located in the middle of the transmission chain 46.

[0043] Furthermore, in the present embodiment, bending plates 47 are installed on the opposite sides of the two one-way telescopic rods 12, and yield grooves 48 are opened on the opposite sides of the two bending plates 47, and slide rail grooves 471 are opened on the opposite sides of the bending plates 47. A placement block 472 is slidably connected in the slide rail groove 471. Two drive motors 49 are installed on the side of the placement block 472 away from the bending plate 47 through a motor seat, and any one of the linkage shafts 44 on the adjustment plate 33 is connected to the output shaft of the drive motor 49.

[0044] It should be noted that when the spacing of the hexagonal sleeves 23 is adjusted, the support spring 43 always applies an elastic force to the sliding block 42 toward the side away from the axis of the adjustment plate 33, so that when the spacing of the hexagonal sleeves 23 is reduced, the transmission gear 45 on the linkage shaft 44 always tensions the transmission chain 46 to avoid the transmission chain 46 being loosened due to the adjustment of the spacing of the hexagonal sleeves 23, thereby affecting the transmission of the hexagonal sleeves 23.

[0045] During the specific implementation process, the drive motor 49 is started, and the output shaft of the drive motor 49 drives the linkage shaft 44 and the transmission gear 45 connected thereto to rotate. The transmission gear 45 drives the transmission gear 45 and the hexagonal sleeve 23 connected thereto to rotate through the transmission chain. During the rotation of the transmission gear 45 at the upper end of the hexagonal sleeve 23, the linkage shaft 44 and the hexagonal sleeve 23 adjacent thereto are driven to rotate through the transmission chain 46, thereby driving multiple hexagonal sleeves 23 to rotate at the same time. During the rotation of multiple hexagonal sleeves 23, the bolts are driven to rotate to disassemble them, thereby separating the valve and the pipeline, thereby achieving rapid disassembly of the valve.

[0046] When the spacing between the hexagonal sleeves 23 is reduced, the support spring 43 pushes the sliding block 42, and the sliding block 42 slides along the tensioning groove 41. The sliding block 42 drives the linkage shaft 44 to move to the side away from the axis of the semicircular plate 211. The movement of the linkage shaft 44 drives the drive motor 49 and the placement block 472 to slide synchronously along the slide rail groove 471, thereby preventing the linkage shaft 44 from being unable to move.

[0047] Reference Figure 7 As shown, in order to fix the nut during the removal of the bolt, based on this, in the present embodiment, a plurality of connecting plates 24 are installed on the side of the semicircular plate 211 away from the adjusting plate 33, the connecting plate 24 is sleeved on the outer wall of the hexagonal sleeve 23, a spring rod 25 is installed on the side of the connecting plate 24 away from the semicircular plate 211, a disassembly plate 26 is installed on the side of the spring rod 25 away from the connecting plate 24, a hexagonal hole 27 corresponding to the hexagonal sleeve 23 is provided on the disassembly plate 26, a guide plate 28 is installed on the side of the disassembly plate 26 away from the connecting plate 24, and the guide plate 28 is gradually inclined toward the side close to the axis of the semicircular plate 211 away from the disassembly plate 26.

[0048] In the specific implementation process, when the one-way rod is pulled downward, the semicircular plate 211 drives multiple connecting plates 24 to descend synchronously. During the descent, when the guide plate 28 contacts the flange, the guide plate 28 drives the disassembly plate 26 to move to the side away from the semicircular plate 211 under the action of the downward pressure of the one-way rod, and the spring rod 25 adaptively retracts and contracts, and then the hexagonal hole 27 on the disassembly plate 26 is clamped on the outer wall of the nut, thereby realizing adaptive adjustment of the distance between the disassembly plate 26 and the hexagonal sleeve 23, which can be suitable for flanges of different thicknesses, further improving the scope of application of the device; in addition, the nut is locked by the hexagonal hole 27 on the disassembly plate 26, so that the hexagonal sleeve 23 can prevent the nut and the bolt from rotating synchronously during the disassembly of the bolt, affecting the disassembly of the bolt, thereby greatly improving the disassembly effect.

[0049] Reference Figure 8 and Fig. 9 As shown, in order to enable the valve to be installed after being disassembled, based on this, in the present embodiment, a blocking plate 231 is installed on the side of the hexagonal sleeve 23 close to the bending plate 47, a sliding plate 232 is slidably connected inside the hexagonal sleeve 23, an extrusion spring 233 is connected between the sliding plate 232 and the blocking plate 231, and a receiving groove 234 is provided on the inner wall of the hexagonal sleeve 23 away from the blocking plate 231, a semicircular block 235 is slidably connected inside the receiving groove 234, and a supporting spring 236 is connected between the semicircular block 235 and the receiving groove 234.

[0050] It should be noted that the extrusion spring 233 always applies an elastic force to the sliding plate 232 away from the blocking plate 231, so that the bolt can pop out after entering the hexagonal sleeve 23, which is convenient for the subsequent installation of the valve; the support spring 236 always applies an elastic force to the semicircular block 235 away from the bottom wall of the accommodating groove 234, thereby preventing the bolt from slipping out of the hexagonal sleeve 23.

[0051] In the specific implementation process, during the disassembly of the bolt by the hexagonal sleeve 23, the nut cannot rotate due to the limitation of the hexagonal hole 27 during the rotation of the bolt and the nut, so the bolt gradually moves into the hexagonal sleeve 23 under the cooperation with the thread of the nut; when the bolt contacts the semicircular block 235 during the movement into the hexagonal sleeve 23, the semicircular block 235 slides into the accommodating groove 234 under the extrusion direction of the bolt, the supporting spring 236 shrinks adaptively, and the bolt continues to move into the hexagonal sleeve 23, and then the semicircular block 235 is in the hexagonal sleeve 23. After the bolt's extrusion is lost, it is reset under the elastic force of the supporting spring 236, and the bolt pushes the sliding plate 232 to gradually move toward the side close to the blocking plate 231, and the extrusion spring 233 shrinks adaptively; when the bolt is completely separated from the nut, the two-way telescopic rod 32 is pulled, and the telescopic end of the two-way telescopic rod 32 drives the two unidirectional telescopic rods 12 to move oppositely, and the unidirectional telescopic rod 12 drives the semicircular plate 211, the adjusting plate 33 and the hexagonal sleeve 23 to move synchronously, and then the disassembled valve is removed, thereby realizing the rapid disassembly of the valve.

[0052] While the hexagonal sleeve 23 moves, the bolt gradually moves away from the blocking plate 231 under the elastic force of the supporting spring 236, so that one end of the screw rod of the bolt extends out of the hexagonal sleeve 23. After the staff completes the valve maintenance, the valve and the pipeline are aligned, and the two-way telescopic rod 32 is pulled again. The telescopic end of the two-way telescopic rod 32 drives the semicircular plate 211 and the hexagonal sleeve 23 to move toward the side close to the valve, so that one end of the bolt extending out of the hexagonal sleeve 23 is inserted into the bolt hole on the valve. Then the drive motor 49 is started, and the output shaft of the drive motor 49 is reversed. The output shaft of the drive motor 49 drives multiple hexagonal sleeves 23 to rotate synchronously through the linkage shaft 44 and the transmission chain 46, so that the bolt gradually moves toward the nut until the bolt and the nut are locked by threaded cooperation, thereby realizing the rapid installation of the valve after the maintenance is completed, thereby improving work efficiency.

[0053] During operation: Step 1: First, push the carrying plate 1, and push the carrying plate 1 to the bottom of the valve pipeline to be disassembled through the driving wheel 11, so that the disassembly device 2 is located at the upper end of the valve.

[0054] Step 2: Pull the T-bar 38 upward, and the T-bar 38 drives the cross bar 37 to move upward. During the upward movement of the cross bar 37, the two pull rods 36 pull the semicircular plate 211 to move synchronously. The semicircular plate 211 cannot move upward under the limit of the bending rod 13, so that the semicircular plate 211 rotates away from the hinge with the bending rod 13 under the pulling of the pull rod 36, so that the semicircular plate 211 is opened, and then the one-way telescopic rod 12 is pressed down, so that the semicircular plate 211 moves to the outer wall of the valve pipe to be disassembled, and then the T-bar 38 is released. The semicircular plate 211 is twisted and the semicircular plate 211 is opened. The hexagonal sleeve 23 is moved toward each other under the action of the spring, so that the make way groove 48 is sleeved on the outer wall of the valve pipe that needs to be disassembled, and then the adjusting plate 33 is rotated. The hexagonal sleeve 23 cannot move circumferentially under the limitation of the sliding groove 22, so that the adjusting groove 35 on the adjusting plate 33 drives the hexagonal sleeve 23 to move along the sliding groove 22 to the side close to the axis of the semicircular plate 211, so that the spacing between the multiple hexagonal sleeves 23 is equidistantly contracted, so that the hexagonal sleeve 23 is aligned with the bolts on the valve, and the bolts with different spacings can be removed when the valve is removed, which greatly improves the application range of the device.

[0055] Then, the two-way telescopic rod 32 is pulled, and the two telescopic ends of the two-way telescopic rod 32 are contracted, and the two telescopic ends of the two-way telescopic rod 32 drive the two unidirectional telescopic rods 12 to move toward each other, and the unidirectional telescopic rod 12 slides along the sliding groove 31. The unidirectional telescopic rod 12 drives the semicircular plate 211, the adjustment plate 33 and the hexagonal sleeve 23 to move synchronously toward the side close to the bolt through the bending rod 13, so that the hexagonal sleeve 23 is sleeved on the end of the bolt, and then multiple hexagonal sleeves 23 are rotated at the same time, and the hexagonal sleeves 23 drive the bolts to rotate, thereby rotating the bolts out, thereby realizing the rapid disassembly of the valve.

[0056] Step 3: Start the driving motor 49. The output shaft of the driving motor 49 drives the linkage shaft 44 and the transmission gear 45 connected thereto to rotate. The transmission gear 45 drives the transmission gear 45 and the hexagonal sleeve 23 connected thereto to rotate through the transmission chain. During the rotation of the transmission gear 45 at the upper end of the hexagonal sleeve 23, the linkage shaft 44 and the hexagonal sleeve 23 adjacent thereto are driven to rotate through the transmission chain 46, thereby driving multiple hexagonal sleeves 23 to rotate at the same time. During the rotation of multiple hexagonal sleeves 23, the bolts are driven to rotate to disassemble them, thereby separating the valve from the pipeline and realizing rapid disassembly of the valve.

[0057] When the spacing between the hexagonal sleeves 23 is reduced, the support spring 43 pushes the sliding block 42, and the sliding block 42 slides along the tensioning groove 41. The sliding block 42 drives the linkage shaft 44 to move to the side away from the axis of the semicircular plate 211. The movement of the linkage shaft 44 drives the drive motor 49 and the placement block 472 to slide synchronously along the slide rail groove 471, thereby preventing the linkage shaft 44 from being unable to move.

[0058] Step 4: When the one-way rod is pulled downward, the semicircular plate 211 drives multiple connecting plates 24 to descend synchronously. During the descent, when the guide plate 28 contacts the flange, the guide plate 28 drives the disassembly plate 26 to move to the side away from the semicircular plate 211 under the action of the one-way rod pressing down, and the spring rod 25 adaptively retracts and contracts, and then the hexagonal hole 27 on the disassembly plate 26 is clamped on the outer wall of the nut, thereby realizing adaptive adjustment of the distance between the disassembly plate 26 and the hexagonal sleeve 23, which can be used for flanges of different thicknesses, further improving the scope of application of the device; in addition, the nut is locked by the hexagonal hole 27 on the disassembly plate 26, so that the hexagonal sleeve 23 can prevent the nut and the bolt from rotating synchronously during the disassembly of the bolt, affecting the disassembly of the bolt, thereby greatly improving the disassembly effect.

[0059] Step 5: During the disassembly of the bolt by the hexagonal sleeve 23, the nut cannot rotate due to the limitation of the hexagonal hole 27 during the rotation of the bolt and the nut, so the bolt gradually moves into the hexagonal sleeve 23 under the thread cooperation with the nut; when the bolt contacts the semicircular block 235 during the movement into the hexagonal sleeve 23, the semicircular block 235 slides into the receiving groove 234 under the extrusion direction of the bolt, the supporting spring 236 shrinks adaptively, and the bolt continues to move into the hexagonal sleeve 23, and then the semicircular block 235 loses the After the bolt is squeezed, it resets under the elastic force of the supporting spring 236, and the bolt pushes the sliding plate 232 to gradually move toward the side close to the blocking plate 231, and the squeezing spring 233 shrinks adaptively; when the bolt is completely separated from the nut, the two-way telescopic rod 32 is pulled, and the telescopic end of the two-way telescopic rod 32 drives the two unidirectional telescopic rods 12 to move oppositely, and the unidirectional telescopic rod 12 drives the semicircular plate 211, the adjusting plate 33 and the hexagonal sleeve 23 to move synchronously, and then the disassembled valve is removed, thereby realizing the rapid disassembly of the valve.

[0060] Step 6: While the hexagonal sleeve 23 is moving, the bolt gradually moves away from the blocking plate 231 under the elastic force of the supporting spring 236, so that one end of the screw rod of the bolt extends out of the hexagonal sleeve 23. After the staff completes the valve maintenance, the valve and the pipeline are aligned, and the two-way telescopic rod 32 is pulled again. The telescopic end of the two-way telescopic rod 32 drives the semicircular plate 211 and the hexagonal sleeve 23 to move toward the side close to the valve, so that one end of the bolt extending out of the hexagonal sleeve 23 is inserted into the bolt hole on the valve. Then the drive motor 49 is started, and the output shaft of the drive motor 49 is reversed. The output shaft of the drive motor 49 drives multiple hexagonal sleeves 23 to rotate synchronously through the linkage shaft 44 and the transmission chain 46, so that the bolt gradually moves toward the nut until the bolt and the nut are locked by threaded cooperation, thereby realizing the rapid installation of the valve after the maintenance is completed, thereby improving work efficiency.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A valve maintenance and disassembly device for a power plant, comprising a bearing plate (1), a plurality of driving wheels (11) arranged in a rectangular pattern are mounted on the bottom of the bearing plate (1), and the characteristics are: The upper end of the bearing plate (1) is provided with two symmetrically distributed one-way telescopic rods (12), the telescopic ends of the one-way telescopic rods (12) are connected with bending rods (13), and the bottom of the bending rods (13) is connected with a disassembly device (2); The disassembly device (2) comprises a clamping member (21) installed at the bottom of the bending rod (13), the clamping member (21) comprises two semicircular plates (211), the two semicircular plates (211) are hinged to the bending rod (13), a torsion spring is installed at the hinge between the semicircular plates (211) and the bending rod (13), a plurality of sliding grooves (22) distributed along the circumference of the axis of the semicircular plates (211) are provided, a hexagonal sleeve (23) is slidably connected in the sliding groove (22), and an adjustment assembly (3) is installed on the opposite sides of the two clamping members (21), and the adjustment assembly (3) is movably connected to the semicircular plates (211).

2. A power plant valve maintenance and disassembly equipment according to claim 1, characterized in that: The upper end of the bearing plate (1) is provided with a sliding groove (31), and two one-way telescopic rods (12) are located in the sliding groove (31) and slide. Two-way telescopic rods (32) are installed on opposite sides of the two one-way telescopic rods (12), and two telescopic ends of the two-way telescopic rods (32) are connected to the one-way telescopic rod (12).

3. The power plant valve maintenance and disassembly equipment according to claim 1 is characterized by: The adjustment assembly (3) comprises an adjustment plate (33) movably connected to the semicircular plate (211); the adjustment plate (33) is located at a side away from the center of the bearing plate (1); a clearance hole (34) is provided in the middle of the adjustment plate (33) and the semicircular plate (211); a plurality of adjustment grooves (35) corresponding to the sliding grooves (22) are provided at a side of the adjustment plate (33) away from the semicircular plate (211); the hexagonal sleeve (23) is located at a side of the adjustment groove (35) away from the axis of the adjustment plate (33); and the end of the adjustment groove (35) away from the hexagonal sleeve (23) is gradually inclined in a clockwise direction.

4. The power plant valve maintenance and disassembly equipment according to claim 1 is characterized by: A pull rod (36) is hingedly connected to one side of the semicircular plate (211) away from the adjustment plate (33), and two pull rods (36) are hingedly connected to a cross bar (37) on one side away from the semicircular plate (211), and the upper end of the cross bar (37) is connected to a T-shaped rod (38).

5. The power plant valve maintenance and disassembly equipment according to claim 3 is characterized by: A plurality of tensioning grooves (41) are provided between two adjacent hexagonal sleeves (23) on the same adjusting plate (33), and the plurality of tensioning grooves (41) are distributed along the circumference of the axis of the adjusting plate (33). A sliding block (42) is slidably connected in the tensioning groove (41), and a supporting spring (43) is installed between the sliding block (42) and the tensioning groove (41). A linkage shaft (44) is installed on the side of the sliding block (42) away from the semicircular plate (211), and a transmission gear (45) is sleeved on the outer wall of the linkage shaft (44) and the hexagonal sleeve (23). The transmission gears (45) on the two adjacent hexagonal sleeves (23) are jointly sleeved with a transmission chain (46), and the rotating gear on the linkage shaft (44) is located in the middle of the transmission chain (46).

6. The power plant valve maintenance and disassembly equipment according to claim 1, characterized in that: The two one-way telescopic rods (12) are both installed with bending plates (47) on the opposite sides thereof, and the two bending plates (47) are both provided with a clearance groove (48) on the opposite sides thereof, and the bending plates (47) are provided with a slide rail groove (471) on the opposite sides thereof, and a placement block (472) is slidably connected in the slide rail groove (471), and two driving motors (49) are installed on the side of the placement block (472) away from the bending plate (47) through a motor seat, and any one of the linkage shafts (44) on the adjustment plate (33) is connected to the output shaft of the driving motor (49).

7. The power plant valve maintenance and disassembly equipment according to claim 1 is characterized by: A plurality of connecting plates (24) are installed on the side of the semicircular plate (211) away from the adjusting plate (33), the connecting plates (24) are sleeved on the outer wall of the hexagonal sleeve (23), a spring rod (25) is installed on the side of the connecting plate (24) away from the semicircular plate (211), a disassembly plate (26) is installed on the side of the spring rod (25) away from the connecting plate (24), and a hexagonal hole (27) corresponding to the hexagonal sleeve (23) is opened on the disassembly plate (26).

8. The power plant valve maintenance and disassembly equipment according to claim 7 is characterized by: A guide plate (28) is installed on the side of the disassembly plate (26) away from the connection plate (24), and the side of the guide plate (28) away from the disassembly plate (26) gradually inclines toward the side close to the axis of the semicircular plate (211).

9. The power plant valve maintenance and disassembly equipment according to claim 1, characterized in that: A blocking plate (231) is installed on one side of the hexagonal sleeve (23) close to the bending plate (47), a sliding plate (232) is slidably connected inside the hexagonal sleeve (23), and a compression spring (233) is connected between the sliding plate (232) and the blocking plate (231).

10. The power plant valve maintenance and disassembly equipment according to claim 1, characterized in that: A receiving groove (234) is provided on the inner wall of the hexagonal sleeve (23) at a side away from the blocking plate (231), a semicircular block (235) is slidably connected in the receiving groove (234), and a supporting spring (236) is connected between the semicircular block (235) and the receiving groove (234).

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