Special equipment special maintenance fixture

Abstract

The utility model relates to maintenance fixture technical field, concretely discloses a special maintenance fixture of special equipment, including support mechanism, support mechanism includes support, and the inside upper end of support is provided with clamping mechanism, and clamping mechanism includes two limit boards, and the side of two limit boards away from each other is provided with first support plate and second support plate respectively, and the middle part of the side of first support plate and second support plate away from each other is provided with first pivot and second pivot respectively, and one end of first pivot is provided with speed reducer, and one end of speed reducer is provided with motor, and the outside of second pivot is rotatably connected with link plate, and the middle part of one side of link plate is connected with second telescopic link, and the side of two limit boards is all provided with two arc clamps symmetrically, and one end of arc clamp is provided with slide plate, and the inside penetration of slide plate is provided with two -way screw rod, and the device can avoid the influence that support produces to the rotation of two -way screw rod, guarantees the clamping fixed efficiency of pressure vessel.

Description

Technical Field

[0001] This utility model relates to the field of maintenance fixture technology, and specifically discloses a special maintenance fixture for special equipment. Background Technology

[0002] Special equipment refers to specific equipment that involves life safety and poses significant risks. It is subject to special national supervision to ensure safe use. The main categories include boilers, pressure vessels, pressure pipelines, elevators, lifting machinery, and passenger ropeways. Among them, pressure vessels are common special equipment in daily life. To ensure the safe use of pressure vessels, they need to be inspected and maintained regularly. Maintenance fixtures are required during inspection and maintenance.

[0003] Chinese patent CN221495805U discloses a special equipment maintenance fixture, including a clamping frame. A fixed frame is fixedly connected to the left side of the clamping frame, and a sliding frame is slidably connected to the right side of the clamping frame. Fixed rings are fixedly connected to the sides of the fixed frame and clamping frame that are close to each other. Clamping rings are provided on the sides of the two fixed rings that are close to each other. Clamping components are provided inside the two clamping rings. An adjustment mechanism is provided near the fixed ring and clamping ring near the sliding frame. The adjustment mechanism includes a rotating ring fixedly connected to the side of the clamping ring near the fixed ring. The inner wall of the rotating ring is rotatably connected to the fixed ring. A through groove is provided at the top of the fixed ring near the sliding frame. Through the cooperation of the above structure, the pressure vessel can rotate along its own axis, facilitating inspection and maintenance of the pressure vessel's surroundings. However, during use, the clamping frame can easily affect the rotation of the threaded rod located at the lower end, thus affecting the clamping efficiency of the pressure vessel. Therefore, to solve the above problem, this utility model proposes a special equipment maintenance fixture. Utility Model Content

[0004] The present invention aims to provide a special maintenance fixture for special equipment, which can avoid the bracket from affecting the rotation of the bidirectional lead screw and ensure the clamping and fixing efficiency of the pressure vessel.

[0005] This utility model is achieved through the following technical solution: A special equipment maintenance fixture includes a support mechanism, which includes a bracket. A first telescopic rod is provided on the inner side of the bracket, and an arc-shaped support plate is provided at the telescopic end of the first telescopic rod. A clamping mechanism is provided at the upper inner side of the bracket. The clamping mechanism includes two limiting plates, each with two symmetrically arranged limiting holes. A first support plate and a second support plate are respectively provided on the opposite sides of the two limiting plates. A first rotating shaft and a second rotating shaft are respectively provided in the middle of the opposite sides of the first and second support plates. A reducer is provided at one end of the first rotating shaft, and a motor is provided at the other end of the reducer. A connecting plate is rotatably connected to the outer side of the second rotating shaft. A second telescopic rod is connected to the middle of one side of the connecting plate. Two arc-shaped clamping plates are symmetrically arranged on one side of each of the two limiting plates. A sliding plate is provided at one end of each arc-shaped clamping plate. A bidirectional lead screw is threaded through the interior of the sliding plate, and a rotating plate is connected to one end of the bidirectional lead screw.

[0006] As a further feature of the above scheme, the first support plate is symmetrically provided with two slots at one end near the rotating plate. The rotating plate has multiple through holes arranged in a circumferential array inside. A second insert rod is inserted through the through holes. One end of the second insert rod is threaded to the slot. When the bidirectional screw stops rotating, the second insert rod can be inserted into the appropriate insertion hole to limit the position of the rotating plate and fix the bidirectional screw. This ensures that the bidirectional screw remains stable while rotating synchronously with the first and second rotating shafts, thus guaranteeing the clamping effect of the clamping mechanism on the pressure vessel.

[0007] As a further feature of the above solution, the sliding plate passes through the interior of the limiting hole and is slidably connected to the limiting hole. Limiting rods are connected to both sides of the sliding plate. The limiting rods abut against the limiting plate to restrict the movement direction of the arc-shaped clamping plate. An elastic pad is provided on one side of the arc-shaped clamping plate to reduce the rigid contact between the arc-shaped clamping plate and the pressure vessel.

[0008] As a further feature of the above solution, guide rods are provided at both ends of the connecting plate. The guide rods pass through the interior of the bracket and are slidably connected to the bracket. This can further restrict the movement direction of the connecting plate and its connecting components, reduce the downward pulling force exerted by the connecting plate and its connecting components on the telescopic end of the second telescopic rod, and extend the service life of the second telescopic rod. A first insertion hole is provided on the side of the second support plate near the connecting plate, and a second insertion hole is provided in the upper center of one end of the connecting plate. A first pin is provided through the interior of the second insertion hole, and one end of the first pin passes through the interior of the first insertion hole. This can restrict the position of the second support plate and its connecting components and prevent the second support plate and its connecting components from shaking during the clamping of the pressure vessel.

[0009] As a further feature of the above scheme, the first rotating shaft passes through the interior of the bracket and is rotatably connected to the bracket. Two rollers are symmetrically arranged on both sides of the lower part of the bracket, at least one of which is a brake roller, so as to facilitate the adjustment and fixation of the device according to the position of the pressure vessel to be inspected. A controller is provided at one end of the bracket to facilitate the control of the operation of the relevant components in the device.

[0010] In this utility model, both the motor and the steering gear are connected to the bracket via a connecting frame. The steering gear, the first telescopic rod, the second telescopic rod, and their corresponding drive components are all conventional components in the prior art. Therefore, this application only indicates their installation positions, and the specific structure and drive components are not shown in the figures. The control circuit of the controller can be implemented by those skilled in the art through simple programming, which is common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail. The bidirectional lead screw in this application is provided with retractable dust covers at the middle and both ends. The two ends of the retractable dust cover at the middle are respectively connected to two sliding plates, and the two ends of the retractable dust covers at both ends are respectively connected to the sliding plate and the first support plate or the second support plate. The axes of the first rotating shaft and the second rotating shaft in this utility model are on the same straight line, and the two ends of the two bidirectional lead screws are rotatably connected to the two ends of the first support plate and the second support plate, respectively.

[0011] The present invention has the following beneficial effects during use: The combined use of the first telescopic rod and the arc-shaped support plate in the support mechanism can adjust the distance between the arc-shaped support plate and the ground by controlling the extension and retraction of the first telescopic rod according to the diameter of the pressure vessel, so that the arc-shaped support plate provides support for the pressure vessel before it is fixed, and the central axis of the pressure vessel is initially aligned with the first and second rotating axes.

[0012] 2. The combination of the bidirectional lead screw and the arc-shaped clamping plate in the clamping mechanism can drive the two arc-shaped clamping plates to move simultaneously by rotating the bidirectional lead screw, thereby improving the moving efficiency of the arc-shaped clamping plates and the fixing efficiency of the pressure vessel. The combination of the first pin and the two types of holes can limit the position of the second support plate and its connecting parts, preventing the second support plate and its connecting parts from shaking during the clamping of the pressure vessel. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the support mechanism in this utility model; Figure 3 This is an exploded view of the assembly of components such as the limiting plate, the first support plate, and the reducer in this utility model. Figure 4 This is a perspective view of the combination of the arc-shaped clamp and the bidirectional lead screw in this utility model; Figure 5 This is an exploded view of the combination of the arc-shaped clamping plate and the limiting plate in this utility model; Figure 6 This is an exploded view of the assembly of components such as the second support plate and the bidirectional lead screw in this utility model. Figure 7 This is an exploded view of the assembly of components such as the connecting plate and guide rod in this utility model.

[0015] In the diagram: 1. Support mechanism; 2. Clamping mechanism; 3. Controller; 11. Bracket; 12. Roller; 13. First telescopic rod; 14. Arc-shaped support plate; 21. Limiting plate; 211. Limiting hole; 22. Arc-shaped clamping plate; 221. Slide plate; 222. Limiting rod; 23. First support plate; 231. First rotating shaft; 232. Slot; 24. Second support plate; 241. Second rotating shaft; 242. First insertion hole; 243. First pin; 25. Two-way lead screw; 251. Rotating plate; 252. Through hole; 253. Second pin; 26. Reducer; 27. Motor; 28. Connecting plate; 281. Guide rod; 282. Second insertion hole; 29. ​​Second telescopic rod. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-7 This application will be described in detail with reference to the embodiments.

[0018] This embodiment discloses a special equipment maintenance fixture, including a support mechanism 1. The support mechanism 1 includes a bracket 11, and a first telescopic rod 13 is provided on the inner side of the bracket 11. An arc-shaped support plate 14 is provided at the telescopic end of the first telescopic rod 13. A clamping mechanism 2 is provided on the upper inner side of the bracket 11. The clamping mechanism 2 includes two limiting plates 21. Each of the two limiting plates 21 has two symmetrically arranged limiting holes 211 inside. A first support plate 23 and a second support plate 24 are respectively provided on the side of the two limiting plates 21 that are far apart from each other. The first support plate 23 and the second support plate 24 are connected to each other. A first rotating shaft 231 and a second rotating shaft 241 are respectively arranged in the middle of the opposite sides. A reducer 26 is provided at one end of the first rotating shaft 231, and a motor 27 is provided at one end of the reducer 26. A connecting plate 28 is rotatably connected to the outer side of the second rotating shaft 241. A second telescopic rod 29 is connected to the middle of one side of the connecting plate 28. Two arc-shaped clamping plates 22 are symmetrically arranged on one side of each of the two limiting plates 21. A sliding plate 221 is provided at one end of the arc-shaped clamping plate 22. A bidirectional lead screw 25 is passed through the interior of the sliding plate 221. A rotating plate 251 is connected to one end of the bidirectional lead screw 25.

[0019] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, the first support plate 23 has two symmetrical slots 232 near the end of the rotating plate 251. The rotating plate 251 has a plurality of through holes 252 arranged in a circumferential array inside. A second insert rod is inserted through the through hole 252. One end of the second insert rod is threaded to the slot 232. When the bidirectional lead screw 25 stops rotating, the second insert rod can be inserted into the appropriate insertion hole to restrict the position of the rotating plate 251 so as to fix the bidirectional lead screw 25. This ensures that the bidirectional lead screw 25 remains stable while rotating synchronously with the first rotating shaft 231 and the second rotating shaft 241, thus ensuring the clamping effect of the clamping mechanism 2 on the pressure vessel.

[0020] like Figure 1 and Figure 5 As shown, the sliding plate 221 passes through the interior of the limiting hole 211 and is slidably connected to the limiting hole 211. Limiting rods 222 are connected to both sides of the sliding plate 221. The limiting rods 222 are in contact with the limiting plate 21 and can restrict the movement direction of the arc-shaped clamping plate 22. An elastic pad is provided on one side of the arc-shaped clamping plate 22 to reduce the rigid contact between the arc-shaped clamping plate 22 and the pressure vessel.

[0021] like Figure 1 , Figure 6 and Figure 7As shown, guide rods 281 are provided at both ends of the connecting plate 28. The guide rods 281 pass through the interior of the bracket 11 and are slidably connected to the bracket 11. This can further restrict the movement direction of the connecting plate 28 and its connecting components, reduce the downward pulling force exerted by the connecting plate 28 and its connecting components on the telescopic end of the second telescopic rod 29, and extend the service life of the second telescopic rod 29. A first insertion hole 242 is provided on the side of the second support plate 24 near the connecting plate 28. A second insertion hole 282 is provided in the upper middle part of one end of the connecting plate 28. A first pin 243 is provided through the interior of the second insertion hole 282. One end of the first pin 243 passes through the interior of the first insertion hole 242, which can restrict the position of the second support plate 24 and its connecting components and prevent the second support plate 24 and its connecting components from shaking during the clamping of the pressure vessel.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the first rotating shaft 231 passes through the interior of the bracket 11 and is rotatably connected to the bracket 11. Two rollers 12 are symmetrically arranged on both sides of the lower part of the bracket 11. At least one of the rollers 12 is a brake wheel, which facilitates adjusting and fixing the position of the device according to the position of the pressure vessel to be inspected. A controller 3 is provided at one end of the bracket 11 to facilitate the control of the operation of the relevant components in the device.

[0023] The special equipment maintenance fixture disclosed in this embodiment, before use, moves the device to a suitable position, then brakes the brake wheel in roller 12 to fix the device. The first pin 243 is inserted into the first insertion hole 242 and the second insertion hole 282, so that the second support plate 24 and its connecting parts are perpendicular to the ground. At this time, the rotating plate 251 at one end of the second support plate 24 is located on the side of the second support plate 24 away from the bracket 11. The pressure vessel to be repaired is placed on the arc-shaped support plate 14. The controller 3 controls the extension and retraction of the first telescopic rod 13, adjusting the distance between the arc-shaped support plate 14, the pressure vessel, and the ground, so that one end of the pressure vessel is located inside the two arc-shaped clamps 22 on one side of the first support plate 23. The controller 3 controls the extension of the second telescopic rod 29, pushing the connecting plate 28 and the second support plate 24 towards the pressure vessel, so that the other end of the pressure vessel is located inside the two arc-shaped clamps 22 on one side of the second support plate 24. The controller 3 closes the first telescopic rod 13 and the second... The telescopic rod 29 pulls out the four second pins 253 inside the two rotating plates 251, separating the second pins 253 from the slots 232. The two rotating plates 251 are rotated to clamp and fix the pressure vessel with the two sets of two arc-shaped clamping plates 22. The two second pins 253 are then inserted into the through holes 252 corresponding to the two slots 232 in the same rotating plate 251, connecting the second pins 253 to the slots 232. The other two pins are fixed in the same way, and the bidirectional lead screw 25 is then fixed. Once fixed, the pressure vessel can be inspected. When the pressure vessel needs to be rotated, the first pin 243 is pulled out from the first socket 242 and the second socket 282. The controller 3 is used to start the motor 27, which drives the first rotating shaft 231 and the first support plate 23 to rotate through the reducer 26. This causes the pressure vessel and the second support plate 24 to rotate around the first rotating shaft 231 and the second rotating shaft 241 as the rotation axis, so as to adjust the orientation of the pressure vessel and facilitate user inspection.

[0024] The controller 3, bracket 11, roller 12, first telescopic rod 13, arc-shaped support plate 14, limiting plate 21, arc-shaped clamping plate 22, sliding plate 221, limiting rod 222, first support plate 23, first rotating shaft 231, slot 232, second support plate 24, second rotating shaft 241; first pin 243, double-acting screw 25, rotating plate 251, second pin 253, reducer 26, motor 27, connecting plate 28, guide rod 281, and second telescopic rod 29 of the special equipment maintenance fixture disclosed in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special maintenance fixture for special equipment, comprising a support mechanism, characterized in that, The support mechanism includes a bracket, with a first telescopic rod on the inner side of the bracket. An arc-shaped support plate is provided at the telescopic end of the first telescopic rod. A clamping mechanism is provided at the upper inner side of the bracket. The clamping mechanism includes two limiting plates, each with two symmetrically arranged limiting holes. A first support plate and a second support plate are respectively provided on the opposite sides of the two limiting plates. A first rotating shaft and a second rotating shaft are respectively provided in the middle of the opposite sides of the first and second support plates. A reducer is provided at one end of the first rotating shaft, and a motor is provided at the other end of the reducer. A connecting plate is rotatably connected to the outer side of the second rotating shaft. A second telescopic rod is connected to the middle of one side of the connecting plate. Two arc-shaped clamping plates are symmetrically arranged on one side of each of the two limiting plates. A sliding plate is provided at one end of each arc-shaped clamping plate. A bidirectional lead screw is threaded through the interior of the sliding plate, and a rotating plate is connected to one end of the bidirectional lead screw.

2. The special equipment maintenance fixture according to claim 1, characterized in that, The first support plate has two slots symmetrically arranged at one end near the rotating plate. The rotating plate has multiple through holes arranged in a circular array inside. A second insert rod is inserted through the through holes, and one end of the second insert rod is threadedly connected to the slot.

3. A special equipment maintenance fixture according to claim 1, characterized in that, The sliding plate passes through the interior of the limiting hole and is slidably connected to the limiting hole. Limiting rods are connected to both sides of the sliding plate, and the limiting rods abut against the limiting plate.

4. A special equipment maintenance fixture according to claim 1, characterized in that, Guide rods are provided at both ends of the connecting plate. The guide rods pass through the interior of the bracket and are slidably connected to the bracket. A first insertion hole is provided on the side of the second support plate near the connecting plate. A second insertion hole is provided at the upper center of one end of the connecting plate. A first pin is provided through the interior of the second insertion hole. One end of the first pin passes through the interior of the first insertion hole.

5. A special equipment maintenance fixture according to claim 1, characterized in that, The first rotating shaft passes through the interior of the bracket and is rotatably connected to the bracket. Two rollers are symmetrically arranged on both sides of the lower part of the bracket, and a controller is provided at one end of the bracket.

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