A quick dismounting and mounting tool for three-machine-one-aircraft maintenance

Abstract

The utility model discloses a quick dismounting and installation frock for three machine one frame maintenance belongs to three machine one frame maintenance technical field, including mobile base, the upper surface fixed connection of mobile base has top support mechanism, the side surface rotationally connected with side surface support mechanism of top support mechanism, top support mechanism includes fixed shell fixed connection on the upper surface of mobile base, through the synergism of top and side surface support mechanism, greatly promote the dismounting and installation efficiency of hydraulic support, top support mechanism gear drive accurate height adjustment, ratchet pawl locking firmness, side surface support mechanism worm gear angle adjustment self -lock, support rod telescopic adaptation distance, universal wheel and adjustable limiting frame realize quick movement and accurate positioning, support pad protects equipment surface, whole process does not need complicated tool, and quick completion supports fixed, avoids component to dump deviation, shortens the dismounting time significantly, and improves operation safety and convenience.

Description

Technical Field

[0001] This utility model relates to the field of three-machine-one-frame maintenance technology, specifically a quick disassembly and installation tool for three-machine-one-frame maintenance. Background Technology

[0002] In large-scale mining operations such as coal mines and mines, hydraulic supports, as supporting components of the three-machine-one-frame equipment system, directly affect production efficiency and operational safety through their stable operation. A hydraulic support is a hydraulic power device that uses liquid pressure to generate supporting force and achieves automatic relocation for roof support and management. It is an auxiliary equipment for fully mechanized coal mining, playing a supporting role in supporting the coal seam and protecting the normal operation of the fully mechanized mining face. Due to long-term exposure to high pressure, impact, and dust erosion, hydraulic supports need to be disassembled and inspected regularly, and damaged key components such as columns, jacks, and valve groups need to be replaced. After inspection, they are then reassembled and reset.

[0003] Currently, the disassembly and installation of hydraulic supports often employ a fixed angle design or rigidly lock the angle with bolts. This not only limits the adjustment range but also makes the angle prone to slight displacement due to stress after locking. When it is necessary to support different positions on the side of the hydraulic support, it is often necessary to replace the support rods with different lengths, which is cumbersome and has poor adaptability. Therefore, there is a problem that it is not convenient to support the hydraulic support.

[0004] To address these issues, this invention provides a quick disassembly and assembly fixture for the maintenance of three machines and one frame. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a quick disassembly and assembly fixture for the maintenance of three machines and one frame, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick disassembly and assembly fixture for the maintenance of three machines and one frame, comprising a movable base, a top support mechanism fixedly connected to the upper surface of the movable base, a side support mechanism rotatably connected to the side surface of the top support mechanism, the top support mechanism including a fixed outer shell fixedly connected to the upper surface of the movable base, a first rotating shaft and a second rotating shaft rotatably connected to the inner wall of the fixed outer shell, a first gear fixedly connected to the outer surface of the first rotating shaft, a second gear and a third gear fixedly connected to the outer surface of the second rotating shaft, and a rack slidably connected to the inner wall of the fixed outer shell, the outer surface of the first gear being connected to the outer surface of the second gear... The surface is engaged, and the outer surface of the third gear is engaged with the outer surface of the rack. One end of the first rotating shaft passes through the outer surface of the fixed housing and is fixedly connected to a ratchet. One end of the ratchet is fixedly connected to a first handle. The side support mechanism includes a connecting sleeve rotatably connected to the outer surface of the fixed housing. The outer surface of the connecting sleeve is fixedly connected to a third rotating shaft. The third rotating shaft is rotatably connected to the inner wall of the fixed housing. The outer surface of the third rotating shaft is fixedly connected to a worm gear. The outer surface of the worm gear is engaged with a worm. One end of the worm gear is rotatably connected to the inner wall of the fixed housing, and the other end of the worm gear passes through the outer surface of the fixed housing and is fixedly connected to a second handle.

[0007] Furthermore, a pawl is rotatably connected to the side surface of the fixed housing, the outer surface of the pawl is in contact with the outer surface of the ratchet, and a retaining spring is fixedly connected to the outer surface of the fixed housing, the outer surface of the retaining spring being in contact with the upper surface of the pawl.

[0008] By adopting the above technical solution, the locking function of the top support mechanism is further enhanced through the cooperation of the pawl and the snap ring. Even when supported for a long time or subjected to vibration, the rack rod position can be kept stable, effectively preventing support failure and improving operational safety.

[0009] Furthermore, a limiting groove is formed on the inner wall of the fixed housing, and a slider is fixedly connected to the outer surface of the rack rod in conjunction with the outer surface of the limiting groove, and a first support pad is fixedly connected to the upper surface of the rack rod.

[0010] By adopting the above technical solution, the guide effect of the slider and the limiting groove avoids the offset or shaking of the rack rod during lifting and lowering, thus improving the stability of the top support; the design of the first support pad protects the surface of the hydraulic support from damage, while also enhancing the support friction.

[0011] Furthermore, the outer surface of the rack rod is slidably connected to the inner side of the fixed housing, and a groove is provided on the side of the rack rod near the third gear, with multiple sets of teeth fixedly connected to the inner side of the groove.

[0012] By adopting the above technical solution, the rack rod is slidably connected to the inner side of the fixed housing through the outer surface of the rack rod, which can guide and constrain the movement of the rack rod, prevent it from shifting or swaying during the lifting process, and ensure the linearity and stability of the lifting action.

[0013] Furthermore, a fixed frame is fixedly connected to the upper surface of the movable base, an adjusting bolt is rotatably connected to the inner wall of the fixed frame, a limit frame is threadedly connected to the outer surface of the adjusting bolt, and the outer surface of the limit frame is slidably connected to the outer surface of the movable base.

[0014] By adopting the above technical solution, the fixed frame, adjusting bolt, and limiting frame work together. By rotating the adjusting bolt, the limiting frame can be driven to slide along the movable base. This allows for easy adjustment of the position of the limiting frame according to the fixing requirements of different working scenarios, enhances the fit between the tooling and the ground or surrounding structure, prevents displacement, and ensures the effectiveness of the fixing effect.

[0015] Furthermore, a support plate is fixedly connected to the lower surface of the fixed frame through the outer surface of the movable base, and universal wheels are fixedly connected to the four corners of the lower surface of the movable base. A fixed handle is fixedly connected to the outer surface of the fixed housing. A support rod is slidably connected to the inner wall of the connecting sleeve. A second support pad is fixedly connected to one end of the support rod, and a fastening bolt is threadedly connected to the outer surface of the connecting sleeve. One end of the fastening bolt is threadedly connected to the outer surface of the support rod.

[0016] Using the above technical solution, the fixed handle can be pushed to move the mobile base flexibly via the casters; rotating the adjusting bolt can drive the limiting frame to slide along the mobile base, and together with the support plate, fix the mobile base in the working position to prevent displacement during operation.

[0017] Beneficial effects

[0018] This utility model provides a quick disassembly and assembly fixture for the maintenance of three machines and one frame. Compared with the prior art, it has the following advantages:

[0019] 1. This quick disassembly and installation fixture for the maintenance of three machines and one frame significantly improves the efficiency of hydraulic support disassembly and installation through the coordinated action of top and side support mechanisms. The top support mechanism features gear transmission for precise height adjustment and ratchet and pawl locking for secure stability. The side support mechanism features worm gear and worm wheel for angle adjustment and self-locking, support rod for telescopic adaptation distance, universal wheels and adjustable limit frame for rapid movement and precise positioning, and support pads to protect the equipment surface. No complicated tools are required throughout the process, quickly completing support and fixation, preventing parts from tipping or shifting, significantly shortening disassembly and assembly time, and improving operational safety and convenience.

[0020] 2. This quick disassembly and assembly fixture for the maintenance of three machines and one frame utilizes a worm gear transmission through a side support mechanism. After angle adjustment, it self-locks, ensuring stable support angle without deviation, eliminating the need for additional locking devices. The support rod can slide along the connecting sleeve, and its length can be quickly fixed with the fastening bolts, flexibly adapting to different side support distances. The second support pad prevents damage to the sides of the hydraulic support while enhancing fit stability. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the external structure of this utility model;

[0023] Figure 2 This is a front sectional view of the structure of this utility model;

[0024] Figure 3 This is a cross-sectional view of the clamping plate in this utility model;

[0025] Figure 4 This is a top sectional view of the structure of this utility model.

[0026] In the diagram: 1. Movable base; 2. Top support mechanism; 201. First handle; 202. Ratchet; 203. First support pad; 204. Pawl; 205. Snap ring; 206. First pivot; 207. Rack and pinion; 208. First gear; 209. Second gear; 210. Third gear; 211. Second pivot; 212. Limiting groove; 213. Fixed outer shell; 3. Side support mechanism; 301. Second handle; 302. Second support pad; 303. Fixed frame; 304. Adjusting bolt; 305. Limiting frame; 306. Third pivot; 307. Support rod; 308. Fastening bolt; 309. Connecting sleeve; 310. Worm gear; 311. Worm; 312. Support plate; 4. Fixed handle. Detailed Implementation

[0027] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 4 This application provides a quick disassembly and assembly fixture for the maintenance of three machines and one frame, including a movable base 1. A top support mechanism 2 is fixedly connected to the upper surface of the movable base 1, and a side support mechanism 3 is rotatably connected to the side surface of the top support mechanism 2. The top support mechanism 2 includes a fixed outer shell 213 fixedly connected to the upper surface of the movable base 1. A first rotating shaft 206 and a second rotating shaft 211 are rotatably connected to the inner wall of the fixed outer shell 213. A first gear 208 is fixedly connected to the outer surface of the first rotating shaft 206, and a second gear 209 and a third gear 210 are fixedly connected to the outer surface of the second rotating shaft 211. A rack 207 is slidably connected to the inner wall of the fixed outer shell 213. The outer surfaces of the first gear 208 and the second gear 209 are meshed together, and the third gear 208... The outer surface of 10 meshes with the outer surface of the rack 207, and one end of the first rotating shaft 206 passes through the outer surface of the fixed housing 213 and is fixedly connected to a ratchet 202. One end of the ratchet 202 is fixedly connected to a first handle 201. The side support mechanism 3 includes a connecting sleeve 309 rotatably connected to the outer surface of the fixed housing 213. The outer surface of the connecting sleeve 309 is fixedly connected to a third rotating shaft 306. The third rotating shaft 306 is rotatably connected to the inner wall of the fixed housing 213, and the outer surface of the third rotating shaft 306 is fixedly connected to a worm gear 310. The outer surface of the worm gear 310 meshes with a worm 311. One end of the worm 311 is rotatably connected to the inner wall of the fixed housing 213, and the other end of the worm 311 passes through the outer surface of the fixed housing 213 and is fixedly connected to a second handle 301.

[0030] Furthermore, a pawl 204 is rotatably connected to the side surface of the fixed housing 213. The outer surface of the pawl 204 is in contact with the outer surface of the ratchet 202. A retaining ring 205 is fixedly connected to the outer surface of the fixed housing 213. The outer surface of the retaining ring 205 is in contact with the upper surface of the pawl 204. A limiting groove 212 is formed in the inner wall of the fixed housing 213. A slider is fixedly connected to the outer surface of the rack 207 in conjunction with the outer surface of the limiting groove 212. A first support pad 203 is fixedly connected to the upper surface of the rack 207. The outer surface of the rack 207 is slidably connected to the inner side of the fixed housing 213. A groove is formed on the side of the rack 207 near the third gear 210. Multiple sets of teeth are fixedly connected to the inner side of the groove.

[0031] In this embodiment, the rack and pinion 207 is raised and lowered efficiently and precisely through gear transmission, easily adapting to different height support requirements. The ratchet 202, pawl 204, and snap ring 205 work together to form a reliable lock, preventing the rack and pinion 207 from sliding down due to external force or vibration, ensuring support stability. The sliding engagement between the slider and the limiting groove 212, and between the rack and pinion 207 and the fixed housing 213, provides double constraint on the lifting trajectory, preventing deviation and swaying. The first support pad 203 protects the surface of the hydraulic support and enhances friction, comprehensively improving the safety and adaptability of the top support.

[0032] Reference Figures 1 to 4 In one aspect of this embodiment, a fixed frame 303 is fixedly connected to the upper surface of the movable base 1, and an adjusting bolt 304 is rotatably connected to the inner wall of the fixed frame 303. A limiting frame 305 is threadedly connected to the outer surface of the adjusting bolt 304, and the outer surface of the limiting frame 305 is slidably connected to the outer surface of the movable base 1.

[0033] Furthermore, a support plate 312 is fixedly connected to the lower surface of the fixed frame 303 through the outer surface of the movable base 1, and universal wheels are fixedly connected to the four corners of the lower surface of the movable base 1. A fixed handle 4 is fixedly connected to the outer surface of the fixed housing 213. A support rod 307 is slidably connected to the inner wall of the connecting sleeve 309. A second support pad 302 is fixedly connected to one end of the support rod 307. A fastening bolt 308 is threadedly connected to the outer surface of the connecting sleeve 309. One end of the fastening bolt 308 is threadedly connected to the outer surface of the support rod 307.

[0034] In this embodiment, the side support mechanism 3 uses a worm gear 310 and worm 311 for transmission. After the angle is adjusted, it can self-lock to ensure that the support angle is stable and without deviation, without the need for an additional locking device. The support rod 307 can slide along the connecting sleeve 309 and quickly fix the length with the fastening bolt 308, flexibly adapting to different side support distances. The second support pad 302 avoids damage to the side of the hydraulic support and enhances the fit stability.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] Working principle: Check the condition of each component of the tooling, confirming that the casters rotate flexibly and the braking function is normal; the fixed handle 4 is not loose; the first gear 208, second gear 209, and third gear 210 of the top support mechanism 2 mesh without jamming, and the rack rod 207 rises and falls smoothly; the worm gear 310 and worm 311 of the side support mechanism 3 drive without abnormal noise, the connecting sleeve 309 slides freely with the support rod 307, and the fastening bolt 308 can be tightened and loosened normally; the pawl 204 and ratchet 202 fit tightly, and the spring 205 has normal elasticity; the surfaces of the first support pad 203 and the second support pad 302 are undamaged, ensuring that the surface of the hydraulic support will not be damaged during support, clean up debris around the hydraulic support, and ensure that the moving base 1 can smoothly approach the position to be inspected, with no obvious protrusions or depressions on the ground to avoid affecting the stability of the tooling. Hold the fixed handle 4 on the outer surface of the fixed housing 213 and push the movable base 1. Use the casters on the lower surface to move the fixture smoothly to the corresponding position where the hydraulic support needs to be disassembled or installed, such as near the top or side support point of the hydraulic support. During the movement, be careful to avoid the protruding parts of the hydraulic support to prevent collision. Then turn the adjusting bolt 304. Since the adjusting bolt 304 is threadedly connected to the limiting frame 305 and the limiting frame 305 is slidably connected to the outer surface of the movable base 1, when the bolt is turned, it will drive the limiting frame 305 to slide along the movable base 1 towards the ground or the surrounding fixed structure until the limiting frame 305 is tightly attached to the ground. At the same time, the support plate 312 on the lower surface of the fixed frame 303 contacts the ground and is subjected to force to form a fixed structure, ensuring that the movable base 1 will not be displaced in subsequent operations.

[0037] To raise the rack 207, simply rotate the first handle 201. The first handle 201 drives the first rotating shaft 206 and the first gear 208 on its outer surface to rotate. The first gear 208 meshes with the second gear 209 on the second rotating shaft 211, driving the second rotating shaft 211 and the third gear 210 to rotate synchronously. The third gear 210 meshes with the teeth in the groove of the rack 207, causing the rack 207 to rise along the limiting groove 212 on the inner wall of the fixed housing 213. When the first support pad 203 on the upper surface of the rack 207 is in close contact with the top of the hydraulic support where support is needed, and the supporting force... When the pressure is moderate, release the first handle 201. The pawl 204 on the side surface of the fixed housing 213, under the elastic force of the retaining spring 205, tightly engages with the ratchet 202, restricting the ratchet 202 from reversing, thereby locking the position of the rack 207 to prevent it from sliding due to the weight or vibration of the hydraulic support. Gently push the top of the hydraulic support to confirm that the first support pad 203 does not slip, the rack 207 does not wobble significantly, and the top support is stable. Turn the second handle 301, and the worm gear 311 drives the worm wheel 310 meshing with it to rotate. The worm wheel 310 is fixedly connected to the third rotating shaft 306, thereby driving the connecting sleeve 309 to rotate. Rotate the outer surface of the fixed housing 213 to adjust the angle of the side support. The self-locking characteristic of the worm gear 310 and worm 311 ensures that the angle of the connecting sleeve 309 is fixed without the need for an additional locking device. Pull the support rod 307 on the inner wall of the connecting sleeve 309 to slide it along the connecting sleeve 309 until the second support pad 302 at the end of the support rod 307 is in contact with the side of the hydraulic support that needs support. Tighten the fastening bolt 308 on the outer surface of the connecting sleeve 309 so that one end of the bolt is in close contact with the outer surface of the support rod 307, fixing the length of the support rod 307 and preventing slippage. Gently push the side of the hydraulic support to confirm the second support. The support pad 302 has no displacement, the connecting sleeve 309 has no rotation, and the side support is stable. The top support mechanism 2 and the side support mechanism 3 stably support the part of the hydraulic support to be disassembled, ensuring that the parts will not tip over or shift due to their own weight during disassembly. Through the gear transmission, worm gear 310 and worm 311 self-locking, pawl 204 and ratchet 202 locking structure of the tooling, the support height and angle can be quickly adjusted and fixed. The universal wheel and the adjustable limit frame 305 cooperate to ensure the tooling can move quickly and be positioned accurately. No complicated tools are required throughout the process, which improves the efficiency and safety of hydraulic support disassembly and installation.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick disassembly and assembly fixture for the maintenance of three machines and one frame, comprising a movable base (1), characterized in that: The upper surface of the movable base (1) is fixedly connected to a top support mechanism (2), and the side surface of the top support mechanism (2) is rotatably connected to a side support mechanism (3). The top support mechanism (2) includes a fixed outer shell (213) fixedly connected to the upper surface of the movable base (1). The inner wall of the fixed outer shell (213) is rotatably connected to a first rotating shaft (206) and a second rotating shaft (211). The outer surface of the first rotating shaft (206) is fixedly connected to a first gear (208). The outer surface of the second rotating shaft (211) is fixedly connected to a second gear (209) and a third gear (210). The inner wall of the fixed outer shell (213) is slidably connected to a rack (207). The outer surface of the first gear (208) meshes with the outer surface of the second gear (209). The outer surface of the third gear (210) meshes with the outer surface of the rack (207). One end of the first rotating shaft (206) passes through the outer surface of the fixed outer shell (213) and is fixedly connected to a ratchet (202). One end of the ratchet (202) is fixedly connected to a first handle (201). The side support mechanism (3) includes a connecting sleeve (309) rotatably connected to the outer surface of the fixed housing (213). A third rotating shaft (306) is fixedly connected to the outer surface of the connecting sleeve (309). The third rotating shaft (306) is rotatably connected to the inner wall of the fixed housing (213). A worm gear (310) is fixedly connected to the outer surface of the third rotating shaft (306). A worm (311) is meshed with the outer surface of the worm gear (310). One end of the worm (311) is rotatably connected to the inner wall of the fixed housing (213). The other end of the worm (311) passes through the outer surface of the fixed housing (213) and is fixedly connected to a second handle (301).

2. The quick disassembly and assembly fixture for maintenance of three machines and one frame as described in claim 1, characterized in that: A pawl (204) is rotatably connected to the side surface of the fixed housing (213). The outer surface of the pawl (204) is in contact with the outer surface of the ratchet (202). A retaining ring (205) is fixedly connected to the outer surface of the fixed housing (213). The outer surface of the retaining ring (205) is in contact with the upper surface of the pawl (204).

3. The quick disassembly and assembly fixture for maintenance of three machines and one frame as described in claim 2, characterized in that: The inner wall of the fixed outer shell (213) is provided with a limiting groove (212), and the outer surface of the rack rod (207) is fixedly connected to the outer surface of the limiting groove (212) with a slider, and the upper surface of the rack rod (207) is fixedly connected to a first support pad (203).

4. The quick disassembly and assembly fixture for maintenance of three machines and one frame as described in claim 3, characterized in that: The outer surface of the rack rod (207) is slidably connected to the inner side of the fixed housing (213), and a groove is provided on the side of the rack rod (207) near the third gear (210), and multiple sets of teeth are fixedly connected to the inner side of the groove.

5. The quick disassembly and assembly fixture for maintenance of three machines and one frame according to claim 1, characterized in that: A fixed frame (303) is fixedly connected to the upper surface of the movable base (1). An adjusting bolt (304) is rotatably connected to the inner wall of the fixed frame (303). A limit frame (305) is threadedly connected to the outer surface of the adjusting bolt (304). The outer surface of the limit frame (305) is slidably connected to the outer surface of the movable base (1).

6. The quick disassembly and assembly fixture for maintenance of three machines and one frame according to claim 5, characterized in that: The lower surface of the fixed frame (303) is fixedly connected to a support plate (312) through the outer surface of the movable base (1), and universal wheels are fixedly connected to the four corners of the lower surface of the movable base (1). The outer surface of the fixed shell (213) is fixedly connected to a fixed handle (4). The inner wall of the connecting sleeve (309) is slidably connected to a support rod (307). One end of the support rod (307) is fixedly connected to a second support pad (302). The outer surface of the connecting sleeve (309) is threadedly connected to a fastening bolt (308). One end of the fastening bolt (308) is threadedly connected to the outer surface of the support rod (307).

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