Crane suspension arm maintenance platform

Abstract

The utility model discloses a crane jib maintenance platform, and relates to the technical field of crane equipment. The maintenance platform comprises a maintenance platform body and connecting plates, a safety fence is welded and fixed to the edge of the top of the maintenance platform body, winding assemblies are clamped and fixed to the periphery of the top of the safety fence, a steel wire rope is inserted into the top of each winding assembly in a penetrating mode, a connecting plate is clamped and fixed to the top of each steel wire rope, and connecting frames are arranged on the periphery of the top of each connecting plate; a conveying roller is inserted into one side of the top of each connecting frame in a penetrating mode. By arranging the overhaul platform main body and the connecting plate, the problems that the overhaul platform with a smaller size is difficult to overhaul each position of the crane quickly and conveniently, the overhaul platform with the same length as the crane needs to be produced and processed by being matched with the size of the crane, and the overhaul platform is difficult to maintain by climbing into the overhaul platform are solved. Or the maintenance platform is lifted through a lifting structure, so that certain potential safety hazards exist.

Description

Technical Field

[0001] The utility model belongs to the technical field of crane equipment, and particularly relates to a maintenance platform for a crane boom. Background Technique

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally transports heavy objects within a certain range. Generally, it can be divided into four categories: light and small lifting equipment, bridge-type lifting machinery, boom-type cranes, and cable-type cranes. Among them, the suspended boom crane has a unique structure, is safe and reliable, and has the characteristics of high efficiency, energy saving, time and labor saving, and flexibility. Therefore, it is usually used for short-distance, frequent, and intensive lifting operations. To ensure the normal operation and use safety of the suspended boom crane, it usually needs to be regularly maintained. Among them, the suspended boom is the main maintenance structure of the crane. Since the boom is located at a high altitude and is not easy to disassemble, a maintenance platform is usually used to assist workers to move to high places for operation during maintenance. However, it still has the following disadvantages in actual use:

[0003] The utility model with the publication number of CN220393126U discloses a movable maintenance device for a mine bridge double-beam crane. A double-beam crane and a maintenance platform are arranged on the double-beam crane track. The maintenance platform is located on one side of the double-beam crane and can move with the double-beam crane. A guardrail is arranged on the side of the maintenance platform away from the double-beam crane. An entrance is arranged on the guardrail, and a climbing ladder is detachably arranged at the entrance. The length of the maintenance platform and the crane is the same, and the working space is large, which is convenient for workers to maintain various positions of the crane. However, the maintenance device needs to be produced and processed according to the size of the crane, resulting in low flexibility in the use of the maintenance device;

[0004] During the maintenance operation of the crane suspended boom, workers need to climb into the maintenance platform through a climbing ladder or be lifted by a lifting structure together with the maintenance platform. However, there are certain safety hazards during the process of climbing up and down through the climbing ladder. After the maintenance platform is lifted by the lifting structure, the center of gravity of the maintenance platform is relatively high, and the workers are often moving at high altitudes, which may drive the maintenance platform to shake slightly, and there are also certain safety hazards. Content of the Utility Model

[0005] The purpose of the utility model is to provide a maintenance platform for a crane boom. Through the maintenance platform main body and the connecting plate, the problem that it is difficult for a maintenance platform with a small size to quickly and conveniently maintain various positions of the crane, and the maintenance platform with the same length as the crane needs to be produced and processed according to the size of the crane, and there are certain safety hazards when workers climb into the high-altitude maintenance platform or the maintenance platform is lifted to a high place by a lifting structure is solved.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model relates to a maintenance platform for a crane boom, which includes a maintenance platform main body and a connecting plate. A safety guardrail is welded and fixed to the top edge of the maintenance platform main body. Reel components are clamped and fixed around the top of the safety guardrail. A steel wire rope is inserted through the top of each reel component. The top of the steel wire rope is clamped and fixed with a connecting plate. Connecting frames are arranged around the top of the connecting plate. A conveying roller is inserted through one side of the top of each connecting frame. An operation opening is formed through the center of the top of the connecting plate.

[0008] The safety guardrail can protect the periphery of the maintenance platform main body, reducing potential safety hazards during maintenance operations. A reel roller is provided in the reel component. After the boom and the connecting plate are connected, the boom can drive the connecting plate to a high position. Through the movement of the connecting frame, the connecting frame is stably clamped on both sides of the cross beam of the crane. Then, by rotating the reel roller, the steel wire rope can be wound, driving the maintenance platform main body to move upward to an appropriate height, facilitating the staff to perform maintenance on the boom and the crane through the operation opening without climbing. Moreover, due to the stable clamping of the connecting frame and the cross beam, it can avoid the problem that after the maintenance platform is lifted by a hoist or the like and is connected to the ground through a hoist or the like, the overall center of gravity is relatively high and there are safety hazards. At the same time, the maintenance platform can be applied to cranes of various sizes and different heights, greatly improving the flexibility of use. And by the rotation of the conveying roller that fits the cross beam, the maintenance platform can be driven to move along the cross beam, facilitating the maintenance of various positions of the crane, further improving the convenience and flexibility of the use of the maintenance platform.

[0009] Further, universal wheels are rotatably clamped around the bottom of the maintenance platform main body, and a protective door is rotatably clamped on one side of the top of the maintenance platform main body. Both sides of the protective door are attached to both ends of the safety guardrail.

[0010] The universal wheels can drive the maintenance platform to move, improving the convenience of using the maintenance platform, and facilitating the storage of the maintenance platform when it is not needed. The safety guardrail and the protective door can protect the periphery of the maintenance platform main body, reducing potential safety hazards during maintenance operations.

[0011] Further, a first transmission component is clamped and fixed on both sides of the safety guardrail. One first transmission component is inserted through and clamped at one end of two reel components. A reel motor is clamped on one side of each first transmission component.

[0012] The rewinding motor is drivingly connected to the rewinding roller through the first transmission assembly. By driving the rotation of the rewinding roller with the rewinding motor, the wire rope can be further wound and unwound. When the connecting plate is connected to the boom and the boom drives the connecting plate to move to a high position and the connecting plate and the cross beam are stably clamped, by winding the wire rope, the main body of the maintenance platform and the staff can be driven to quickly move to a high position without climbing. At the same time, the maintenance platform can be applied to cranes of various sizes and different heights, greatly improving the flexibility of use.

[0013] Further, a clamping block is welded and fixed on one side of the top of the connecting plate. A connecting rod is rotatably clamped on the top of the connecting plate. A connecting lifting ring is welded and fixed at the center of the top of the connecting rod. A clamping groove is opened at one end of one side of the connecting rod. The clamping block is clamped on one side of the clamping groove. The connecting rod is attached to the top of the operation port.

[0014] When connecting the connecting plate and the boom, control the boom to move to a low position, rotate the connecting rod to make the clamping block clamped in the clamping groove, and connect the boom and the connecting lifting ring to ensure the stability of the connecting plate when the boom drives the connecting plate to move upward.

[0015] Further, sliding grooves are opened around the top of the connecting plate. Second transmission assemblies are clamped and fixed on both sides of the connecting plate. A stepping motor is clamped on one side of each second transmission assembly. Two threaded rods are rotatably clamped on the other side of each second transmission assembly. The threaded rods are drivingly connected to the stepping motor through the second transmission assembly. One ends of the two threaded rods are respectively inserted through and clamped in the two sliding grooves. A slider is welded and fixed at the bottom of each connecting frame. A threaded tube is inserted through and clamped on one side of the slider. The slider of one connecting frame is slidably clamped in one sliding groove. One threaded rod is inserted through and screwed onto one end of the threaded tube of the slider.

[0016] After the connecting plate is moved to an appropriate height, by driving the rotation of the threaded rod with the stepping motor, the connecting frame is further driven to slide along the sliding groove, so that the conveying roller can be attached to both sides of the cross beam, and one side of the top of the connecting frame can be attached to the top of the cross beam to perform clamping and positioning on the cross beam, which can avoid the problem that after the maintenance platform is lifted by a hoist or the like, the maintenance platform is connected to the ground through a hoist or the like, and the overall center of gravity is relatively high, resulting in potential safety hazards.

[0017] Further, a third transmission assembly is clamped and fixed on one side of the top of each connecting frame. The conveying roller is clamped at the bottom of the third transmission assembly. A conveying motor is clamped at the top of the third transmission assembly. The conveying motor is drivingly connected to the conveying roller through the third transmission assembly. The conveying roller is located on the other side of the connecting frame relative to the second transmission assembly.

[0018] The conveying motor can drive the conveying roller to rotate, further driving the maintenance platform to move along the crossbeam, facilitating the maintenance of various positions of the crane and further improving the convenience and flexibility of using the maintenance platform.

[0019] The utility model has the following beneficial effects:

[0020] By setting the maintenance platform main body and the connecting plate, the utility model solves the problem that the length of the maintenance platform is the same as that of the crane, the operation space is large, which is convenient for the staff to maintain various positions of the crane. However, the maintenance device needs to be produced and processed according to the size of the crane, resulting in low flexibility in the use of the maintenance device. After the connecting plate and the crane crossbeam are clamped and positioned, the winding and unwinding of the steel wire rope can drive the maintenance platform main body to move to different heights, and the conveying roller that fits the crossbeam rotates, which can drive the maintenance platform to move along the crossbeam, facilitating the maintenance of various positions of the crane. The maintenance platform can be applied to cranes of various sizes and different heights, greatly improving the convenience and flexibility of use.

[0021] By setting the maintenance platform main body and the connecting plate, the utility model solves the problem that when performing maintenance operations on the suspension arm of the crane, the staff needs to climb into the maintenance platform through a ladder or drive the staff and the maintenance platform to be lifted through a lifting structure. However, there are certain safety hazards during the process of climbing up and down through the ladder. After the maintenance platform is lifted by the lifting structure, the center of gravity of the maintenance platform is relatively high, and the staff often moves at high altitudes, which may drive the maintenance platform to shake slightly, also posing certain safety hazards. When the boom is connected to the connecting plate, the boom drives the connecting plate to a high position, and through the movement of the connecting frame, the two sides of the crane crossbeam are clamped to ensure the stability of the connecting plate during maintenance. Then, by rotating the winding roller to wind the steel wire rope, the maintenance platform main body is driven to move upward to an appropriate height, facilitating the staff to maintain the boom and the crane through the operation port without climbing. Moreover, through the stable clamping of the connecting frame and the crossbeam, it can avoid the problem that after the maintenance platform is lifted by a hoist or the like, the maintenance platform is connected to the ground through a hoist or the like, and the overall center of gravity is relatively high, posing a safety hazard. Description of the Drawings

[0022] Figure 1 is the structural effect diagram of the utility model;

[0023] Figure 2 is the structural diagram of the maintenance platform main body of the utility model;

[0024] Figure 3 is the structural diagram of the steel wire rope and the winding assembly of the utility model;

[0025] Figure 4This is the structural diagram of the connecting plate and the connecting frame of the present utility model;

[0026] Figure 5 This is the structural diagram of the connecting frame of the present utility model.

[0027] Reference numerals:

[0028] 1. Main body of the maintenance platform; 101. Safety guardrail; 102. Reeling assembly; 103. Steel wire rope; 104. Universal wheel; 105. Protection door; 106. First transmission assembly; 107. Reeling motor; 2. Connecting plate; 201. Connecting frame; 202. Chute; 203. Operation port; 204. Connecting rod; 205. Connecting hanging ring; 206. Card slot; 207. Card block; 208. Second transmission assembly; 209. Stepping motor; 210. Threaded rod; 211. Slide block; 212. Threaded tube; 213. Third transmission assembly; 214. Conveyor motor; 215. Conveyor roller. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0030] Please refer to Figures 1-5 As shown, the present utility model is a crane boom maintenance platform, including a main body 1 of the maintenance platform and a connecting plate 2. A safety guardrail 101 is welded and fixed to the top edge of the main body 1 of the maintenance platform. Reeling assemblies 102 are clamped and fixed around the top of the safety guardrail 101. A steel wire rope 103 is inserted through the top of each reeling assembly 102. The top of the steel wire rope 103 is clamped and fixed to the connecting plate 2. Connecting frames 201 are provided around the top of the connecting plate 2. A conveyor roller 215 is inserted through one side of the top of each connecting frame 201. An operation port 203 is formed through the center of the top of the connecting plate 2;

[0031] Move the maintenance platform to the bottom of the crane through the universal wheels 104. After controlling the boom to move down to an appropriate height, connect the boom and the connecting plate 2. Then control the boom to drive the connecting plate 2 to move up. At the same time, control the winding assembly 102 to unwind the steel wire rope 103 to prevent the main body 1 of the maintenance platform from moving with the connecting plate 2. When the connecting plate 2 moves to an appropriate height, control the movement of the connecting frame 201 to clamp and position both sides of the cross beam. The staff takes the maintenance tools and stands inside the main body 1 of the maintenance platform. Control the winding assembly 102 to wind the steel wire rope 103, further driving the main body 1 of the maintenance platform and the staff to lift. Protect the periphery of the main body 1 of the maintenance platform through the safety guardrail 101. After the main body 1 of the maintenance platform moves to an appropriate height, disconnect the connection between the connecting plate 2 and the boom, and perform maintenance on the boom and the crane through the operation port 203. Drive the maintenance platform to move along the cross beam by rotating the conveying roller 215 that fits the cross beam to perform maintenance on various positions of the crane.

[0032] Among them, as Figures 1-3 shown, universal wheels 104 are rotatably clamped around the bottom of the main body 1 of the maintenance platform. A protective door 105 is rotatably clamped on one side of the top of the main body 1 of the maintenance platform. Both sides of the protective door 105 are attached to both ends of the safety guardrail 101. A first transmission assembly 106 is clamped and fixed on both sides of the safety guardrail 101. One first transmission assembly 106 penetrates and is clamped at one end of the two winding assemblies 102. A winding motor 107 is clamped on one side of each first transmission assembly 106;

[0033] Drive the maintenance platform to move to an appropriate position at the bottom of the crane through the universal wheels 104. After controlling the boom to move down to an appropriate height, connect the connecting plate 2 and the boom, and drive the connecting plate 2 to move up through the boom. When the connecting plate 2 moves up, the winding motor 107 controls the winding assembly 102 to unwind the steel wire rope 103 through the first transmission assembly 106 to prevent the main body 1 of the maintenance platform from moving with the connecting plate 2. When the connecting plate 2 moves to an appropriate height and is clamped outside the cross beam, the staff opens the protective door 105 and stands inside the main body 1 of the maintenance platform with tools. Close the protective door 105, control the winding assembly 102 to wind the steel wire rope 103, further driving the main body 1 of the maintenance platform and the staff to lift. Protect the periphery of the main body 1 of the maintenance platform through the safety guardrail 101 and the protective door 105.

[0034] Among them, as Figure 1 、 4 shown in Figure 5, a clamping block 207 is welded and fixed on one side of the top of the connecting plate 2. A connecting rod 204 is rotatably clamped on the top of the connecting plate 2. A connecting lifting ring 205 is welded and fixed at the center of the top of the connecting rod 204. A clamping groove 206 is opened at one end of one side of the connecting rod 204. The clamping block 207 is clamped on one side of the clamping groove 206. The connecting rod 204 is attached to the top of the operation port 203;

[0035] Slide grooves 202 are provided around the top of the connecting plate 2, and second transmission components 208 are clamped and fixed on both sides of the connecting plate 2. A stepper motor 209 is clamped on one side of each second transmission component 208, and two threaded rods 210 are rotatably clamped on the other side of each second transmission component 208. The threaded rods 210 are connected by the second transmission component 208 and the stepper motor 209. The two threaded rods 210 are respectively inserted into one end of the two slide grooves 202. A slider 211 is welded and fixed at the bottom of each connecting frame 201, and a threaded tube 212 is clamped on one side of the slider 211. A slider 211 of a connecting frame 201 is slidably engaged in a slide groove 202, a threaded rod 210 penetrates through one end of a threaded tube 212 screwed to a slider 211, a third transmission assembly 213 is fixedly engaged on one side of the top of each connecting frame 201, a conveying roller 215 is engaged at the bottom of the third transmission assembly 213, a conveying motor 214 is engaged at the top of the third transmission assembly 213, the conveying motor 214 is connected to the conveying roller 215 through the third transmission assembly 213, and the conveying roller 215 is located on the other side of the connecting frame 201 relative to the second transmission assembly 208;

[0036] When connecting the connecting plate 2 and the boom, the boom is controlled to move to a lower position, the connecting rod 204 is rotated to make the block 207 engage in the slot 206, and the boom and the connecting ring 205 are connected, and then the boom is controlled to drive the connecting plate 2 to move up. When the connecting plate 2 moves to an appropriate height, the stepping motor 209 is controlled to drive the threaded rod 210 to rotate through the second transmission assembly 208, and further drives the connecting frame 201 to slide along the slide groove 202, so that the conveying rollers 215 are attached to both sides of the beam, and the top side of the connecting frame 201 is attached to the top of the beam, and the beam is clamped and positioned. When the maintenance platform body 1 moves to an appropriate height, the connection between the connecting plate 2 and the boom is released, and the boom and the crane are inspected through the operation port 203. The conveying motor 214 drives the conveying roller 215 to rotate through the third transmission assembly 213, and further drives the maintenance platform to move along the beam, so as to facilitate the inspection of various positions of the crane.

[0037] The specific working principle of the present utility model is as follows: The maintenance platform is driven by the universal wheels 104 to move to a suitable position under the crane. After controlling the boom to move downward to a suitable height, rotate the connecting rod 204 to make the clamping block 207 engage with the clamping groove 206, and connect the boom and the connecting sling 205. Then control the boom to drive the connecting plate 2 to move upward. The winding motor 107 controls the winding assembly 102 to unwind the steel wire rope 103 through the first transmission assembly 106, so as to prevent the main body 1 of the maintenance platform from moving with the connecting plate 2. When the connecting plate 2 moves to a suitable height, control the stepping motor 209 to drive the threaded rod 210 to rotate through the second transmission assembly 208, further drive the connecting frame 201 to slide along the chute 202, make the conveying roller 215 fit on both sides of the cross beam, and make one side of the top of the connecting frame 201 fit on the top of the cross beam to clamp and position the cross beam. The staff opens the protective door 105 and stands in the main body 1 of the maintenance platform with tools, closes the protective door 105, controls the winding assembly 102 to wind the steel wire rope 103, and further drives the main body 1 of the maintenance platform and the staff to lift. When the main body 1 of the maintenance platform moves to a suitable height, disconnect the connection between the connecting plate 2 and the boom, and perform maintenance on the boom and the crane through the operation port 203. The conveying motor 214 drives the conveying roller 215 to rotate through the third transmission assembly 213, and further drives the maintenance platform to move along the cross beam, facilitating the maintenance of various positions of the crane.

[0038] The above are only the preferred embodiments of the present utility model and do not limit the present utility model. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made shall fall within the protection scope of the present utility model.

Claims

1. A crane boom maintenance platform, comprising a maintenance platform body (1) and a connecting plate (2), characterized in that: A safety guardrail (101) is welded and fixed to the top edge of the maintenance platform body (1), and winding components (102) are clamped and fixed to the top of the safety guardrail (101) on all sides, and a steel wire rope (103) is inserted through the top of each winding component (102), and a connecting plate (2) is clamped and fixed to the top of the steel wire rope (103), and connecting frames (201) are arranged on all sides of the top of the connecting plate (2), and a conveying roller (215) is inserted through one side of the top of each connecting frame (201), and an operation port (203) is opened through the center of the top of the connecting plate (2).

2. A crane boom maintenance platform according to claim 1, characterized in that: Universal wheels (104) are rotatably connected to the bottom of the maintenance platform body (1), and a protective door (105) is rotatably connected to one side of the top of the maintenance platform body (1). Both sides of the protective door (105) are attached to the two ends of the safety guardrail (101).

3. The crane boom maintenance platform according to claim 1, characterized in that: A first transmission assembly (106) is clamped and fixed on both sides of the safety guardrail (101); one of the first transmission assemblies (106) penetrates and is clamped on one end of two winding assemblies (102); and a winding motor (107) is clamped on one side of each of the first transmission assemblies (106).

4. The crane boom maintenance platform according to claim 1, characterized in that: A clamping block (207) is welded and fixed on one side of the top of the connecting plate (2), a connecting rod (204) is rotatably clamped on the top of the connecting plate (2), a connecting ring (205) is welded and fixed at the center of the top of the connecting rod (204), a clamping groove (206) is opened at one end of one side of the connecting rod (204), the clamping block (207) is clamped on one side of the clamping groove (206), and the connecting rod (204) is attached to the top of the operating port (203).

5. The crane boom maintenance platform according to claim 1, characterized in that: The top of the connecting plate (2) is provided with sliding grooves (202) on all sides, and the second transmission components (208) are clamped and fixed on both sides of the connecting plate (2). A stepper motor (209) is clamped on one side of each of the second transmission components (208), and two threaded rods (210) are rotatably clamped on the other side of each of the second transmission components (208). The threaded rods (210) are connected by transmission through the second transmission component (208) and the stepper motor (209). The two threaded rods (210) are respectively inserted into one end of the two sliding grooves (202). A slider (211) is welded and fixed on the bottom of each of the connecting frames (201), and a threaded tube (212) is clamped through one side of the slider (211). The slider (211) of one of the connecting frames (201) is slidably clamped in one of the sliding grooves (202), and one of the threaded rods (210) is inserted into one end of the threaded tube (212) of one of the sliders (211).

6. A crane boom maintenance platform according to claim 5, characterized in that: A third transmission assembly (213) is clamped and fixed on one side of the top of each connecting frame (201); the conveying roller (215) is clamped on the bottom of the third transmission assembly (213); a conveying motor (214) is clamped on the top of the third transmission assembly (213); the conveying motor (214) is connected to the conveying roller (215) through transmission via the third transmission assembly (213); and the conveying roller (215) is located on the other side of the connecting frame (201) relative to the second transmission assembly (208).

Images