Lifting device
By introducing a reciprocating screw structure with moving blocks and gears into the lifting device, the problem of rope tangling and knotting was solved, enabling the untangling of the lifting ropes and flexible adjustment of the equipment, thus improving lifting safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WANGZHUANG COAL MINE SHANXI LUAN ENVIRONMENT PROTECTION ENERGY SOURCE SWITCH
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-21
AI Technical Summary
Existing lifting devices are prone to rope tangling and knotting during the winding and unwinding process, which affects lifting efficiency and poses safety hazards.
A lifting device comprising a support section, an adjustment section, and a lifting section was designed. The lifting section employs a reciprocating screw structure with a moving block and gears to manage the lifting rope. Combined with the adjustment of the rotating arm and the telescopic arm, the flexibility and safety of the lifting are improved.
The rope straightening function avoids tangled ropes, ensures stable hoisting, improves safety and hoisting efficiency, and enhances the ease of operation and flexibility of the equipment.
Smart Images
Figure CN224147605U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lifting device, belonging to the technical field of mining lifting equipment. Background Technology
[0002] Coal mine electromechanical equipment mainly refers to some electromechanical equipment used in coal mines. At the same time, coal mines are areas where humans mine coal resources in coal-rich areas. They are generally divided into underground coal mines and open-pit coal mines. During the coal mining process, it is often necessary to use lifting devices to lift coal mine electromechanical equipment to assist in the transportation of such equipment.
[0003] In the process of lifting coal mine electromechanical equipment, existing lifting devices typically use rope winding and unwinding mechanisms to raise the equipment to the designated position. However, the winding and unwinding mechanisms in existing lifting devices cannot straighten the ropes, which may cause the ropes to become tangled and knotted during winding and unwinding. This greatly affects lifting efficiency and, in severe cases, may even cause safety hazards such as rope breakage or electromechanical equipment falling. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lifting device that is small in size, easy to adjust, and can sort out the lifting rope during winding and unwinding to avoid the lifting rope from crossing and knotting.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lifting device, comprising a support part, an adjustment part, and a lifting part, wherein the support part includes a support platform and four casters installed at the bottom of the support platform;
[0006] The adjusting part is mounted on the supporting part, and the hoisting part is mounted on the adjusting part;
[0007] The hoisting unit includes a fixed frame, a take-up roller, a motor, a first gear, a reciprocating screw, a sliding rod, a second gear, a moving block, a hoisting rope, and a hook. The fixed frame is fixed to the top surface of the adjusting unit. Both ends of the take-up roller are rotatably mounted on the fixed frame. The motor is mounted on the fixed frame, and the output shaft of the motor is connected to one end of the take-up roller's rotating shaft. The other end of the take-up roller's rotating shaft is fixed with a first gear. The reciprocating screw and the sliding rod are both arranged parallel to the take-up roller. The reciprocating screw is rotatably mounted on the fixed frame, and the sliding rod is fixedly connected to the fixed frame. One end of the reciprocating screw is fixed with a second gear, which meshes with the first gear. The moving block is fitted onto the reciprocating screw and the sliding rod and is threadedly engaged with the reciprocating screw. One end of the hoisting rope is fixed and wound around the take-up roller. The other end of the hoisting rope is wound around the take-up roller and supported by the moving block. After passing over the end of the adjusting unit, it is connected downwards to the hook.
[0008] Furthermore, the adjustment unit includes a rotating arm and a telescopic arm. The bottom of the rotating arm is mounted on the support platform via a turntable, and the top of the rotating arm is hinged to the fixed body of the telescopic arm. A connecting frame is fixed to the end of the telescopic body in the telescopic arm, and a rotating rod is rotatably mounted on the connecting frame. One end of the first electric push rod is hinged to the middle of the rotating arm, and the other end is hinged to the middle of the telescopic arm.
[0009] The fixed frame is fixed to the top surface of the fixed body in the telescopic arm, and the rotating rod is used to support the suspension rope that passes around the end of the adjustment part.
[0010] Furthermore, a pulley is rotatably mounted on the top of the moving block, and the suspension rope is supported by the pulley after it passes through the winding roller.
[0011] Furthermore, two support rods are fixed parallel to each other at the bottom of the support platform, and four casters are respectively installed at both ends of the two support rods.
[0012] Furthermore, a fixing plate is fixed to one side of the fixed body in the telescopic arm, the second electric push rod is fixed to the fixing plate, and the output end of the second electric push rod is connected to the connecting frame at the end of the telescopic body.
[0013] Furthermore, a second electric push rod is installed on each side of the fixed body in the telescopic arm.
[0014] Furthermore, the first electric push rod and the second electric push rod are replaced by the first hydraulic cylinder and the second hydraulic cylinder, respectively.
[0015] Compared with the prior art, the present invention has the following beneficial effects.
[0016] 1. The hoisting part of this utility model is designed with a movable block. With the cooperation of gear one and gear two, the reciprocating screw rotates together with the rotation of the winding roller, driving the movable block to move axially, thereby driving the hoisting rope in contact with its top pulley to move axially as well. This realizes the function of sorting the hoisting rope during the winding process, avoiding the hoisting rope from getting tangled together and causing the winding to become messy, as well as the hoisting rope from becoming taut and swaying during hoisting caused by the winding to become mixed. This ensures stable hoisting and improves the safety of hoisting.
[0017] 2. This utility model is designed with an adjustment section. Angle adjustment is achieved through the rotating arm, distance adjustment through the telescopic arm, and height adjustment through the first electric push rod. In addition, the universal wheels installed under the support platform can easily adjust the position of this utility model. The overall adjustment range is large, the operation is simple, and the hoisting efficiency and flexibility of the hoisting device are improved. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.
[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0021] Figure 3 This is a schematic diagram of the telescopic arm in this utility model.
[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0023] Figure 5 for Figure 2 Enlarged view of point B in the middle.
[0024] Figure 6 for Figure 3 Enlarged view of point C in the middle.
[0025] In the diagram: 1 is the support unit, 11 is the support platform, 12 is the caster wheel, 13 is the support rod, 2 is the adjustment unit, 21 is the rotating arm, 22 is the telescopic arm, 221 is the fixed body, 222 is the telescopic body, 223 is the fixed plate, 224 is the second electric push rod, 23 is the connecting frame, 24 is the rotating rod, 25 is the first electric push rod, 3 is the hoisting unit, 30 is the fixed frame, 31 is the winding roller, 32 is the motor, 33 is the first gear, 34 is the reciprocating screw, 35 is the slide rod, 36 is the second gear, 37 is the moving block, 371 is the pulley, 38 is the hoisting rope, and 39 is the hook. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0027] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model, provided that it does not affect the effects and purposes that this utility model can produce. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0028] The present invention provides the following embodiments.
[0029] like Figure 1 , Figure 2 As shown, the present invention provides a lifting device, which includes a support part 1, an adjustment part 2 and a lifting part 3. The support part 1 includes a support platform 11 and four casters 12 installed at the bottom of the support platform 11.
[0030] The support part 1 serves to support the upper structure, and the casters 12 therein are used for the overall movement of this utility model.
[0031] The adjustment part 2 is mounted on the support part 1, and the hoisting part 3 is mounted on the adjustment part 2;
[0032] like Figure 5 , Figure 6 As shown, the hoisting unit 3 includes a fixed frame 30, a take-up roller 31, a motor 32, a first gear 33, a reciprocating screw 34, a slide bar 35, a second gear 36, a moving block 37, a hoisting rope 38, and a hook 39. The fixed frame 30 is fixed to the top surface of the adjusting unit 2. Both ends of the take-up roller 31 are rotatably mounted on the fixed frame 30. The motor 32 is mounted on the fixed frame 30, and the output shaft of the motor 32 is connected to one end of the rotating shaft of the take-up roller 31. The first gear 33 is fixed to the other end of the rotating shaft of the take-up roller 31. The reciprocating screw 34 and the slide bar 35 are both connected to the fixed frame 30. The take-up roller 31 is arranged in parallel, the reciprocating screw 34 is rotatably mounted on the fixed frame 30, the slide bar 35 is fixedly connected to the fixed frame 30, one end of the reciprocating screw 34 is fixed with a second gear 36, the second gear 36 meshes with the first gear 33, the moving block 37 is fitted on the reciprocating screw 34 and the slide bar 35, and is threadedly engaged with the reciprocating screw 34, one end of the suspension rope 38 is fixed and wound around the take-up roller 31, the other end of the suspension rope 38 is wound out of the take-up roller 31 and supported by the moving block 37, passes over the end of the adjusting part 2 and is connected downward to the hook 39.
[0033] The adjustment unit 2 includes a rotating arm 21 and a telescopic arm 22. The bottom of the rotating arm 21 is mounted on the support platform 11 via a turntable, and the top of the rotating arm 21 is hinged to the fixed body 221 of the telescopic arm 22. Figure 3 , Figure 4 As shown, a connecting frame 23 is fixed to the end of the telescopic body 222 in the telescopic arm 22, and the rotating rod 24 is rotatably mounted on the connecting frame 23. One end of the first electric push rod 25 is hinged to the middle of the rotating arm 21, and the other end is hinged to the middle of the telescopic arm 22.
[0034] The fixed frame 30 is fixed on the top surface of the fixed body 221 in the telescopic arm 22, and the rotating rod 24 is used to support the suspension rope 38 that passes around the end of the adjustment part 2.
[0035] The fixed frame 30 has a U-shaped cross-section, with the central plane fixed to the top surface of the fixing body 221 in the adjustment part 2, and the two planes on both sides serving as mounting surfaces.
[0036] When the take-up roller 31 takes up the lifting rope 38, the moving block 37, with the cooperation of gear 1 33 and gear 2 36, is driven by the reciprocating screw 34 and moves axially under the guidance of the slide rod 35. This plays a role in sorting the lifting rope 38, avoiding the rope from becoming tangled during the take-up process, ensuring stable lifting and improving the safety of the lifting.
[0037] In the adjustment unit 2, the rotating arm 21 can drive the telescopic arm 22, the lifting unit 2, and the lifting equipment to adjust the lifting angle together. The telescopic arm 22 can drive the hook 39 and the lifting equipment to adjust the lifting distance together through the first electric push rod 25. The first electric push rod 25 can drive the telescopic arm 22 to swing in the vertical direction, thereby driving the hook 39 and the lifting equipment to adjust the lifting height together. The rotating arm 21, the telescopic arm 22, and the first electric push rod 25 work together to achieve all-round adjustment within a certain range, improving the flexibility and efficiency of lifting.
[0038] A pulley 371 is rotatably mounted on the top of the movable block 37, and the suspension rope 38 is supported by the pulley 371 after winding out of the take-up roller 31. The pulley 371 reduces the friction between the suspension rope 38 and the movable block 37, thereby increasing the service life of the suspension rope 38.
[0039] Two support rods 13 are fixed parallel to each other at the bottom of the support platform 11, and four casters 12 are respectively installed at both ends of the two support rods 13. The support rods 13 increase the support area of the support part 1 and increase the overall stability of this utility model.
[0040] A fixing plate 223 is fixed on one side of the fixing body 221 in the telescopic arm 22, and the second electric push rod 224 is fixed on the fixing plate 223. The output end of the second electric push rod 224 is connected to the connecting frame 23 at the end of the telescopic body 222.
[0041] A second electric push rod 224 is installed on each side of the fixed body 221 in the telescopic arm 22. The two second electric push rods 224 make the extension and retraction of the telescopic arm 22 smoother.
[0042] The first electric push rod 25 and the second electric push rod 224 are replaced by the first hydraulic cylinder and the second hydraulic cylinder, respectively.
[0043] The method of using this utility model is as follows.
[0044] In use, first move this utility model to the side of the equipment to be lifted using the casters. Then, adjust the angle of the rotating arm 21 and the length of the telescopic arm 22 using the turntable so that the hook 39 is aligned with the equipment to be lifted. Start the motor 32, which drives the take-up roller 31 to release the lifting rope 38. The hook 39 descends and hooks the equipment. The motor 32 rotates in the opposite direction, driving the take-up roller 31 to wind up the lifting rope 38. The hook 39 lifts the equipment. Then, by rotating the rotating arm 21 or adjusting the length of the telescopic arm 22 (if necessary, simultaneously rotate the take-up roller 31 to adjust the length of the lifting rope 38), move the equipment above the designated position. If a height requirement is required, the first electric push rod 25 can be used to support the telescopic arm 22 so that the equipment reaches a certain height. Then, the motor 32 drives the take-up roller 31 to release the lifting rope 38, so that the equipment is placed stably in the designated position, and the lifting is complete. If other equipment needs to be lifted, repeat the above steps. If there is no equipment to be lifted, move this utility model to a designated location for safekeeping.
[0045] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A hoisting device, characterized by: It includes a support part (1), an adjustment part (2) and a hoisting part (3). The support part (1) includes a support platform (11) and four casters (12) installed at the bottom of the support platform (11). The adjustment part (2) is installed on the support part (1), and the hoisting part (3) is installed on the adjustment part (2); The hoisting unit (3) includes a fixed frame (30), a take-up roller (31), a motor (32), a gear one (33), a reciprocating screw (34), a slide bar (35), a gear two (36), a moving block (37), a hoisting rope (38), and a hook (39). The fixed frame (30) is fixed on the top surface of the adjusting unit (2). Both ends of the take-up roller (31) are rotatably mounted on the fixed frame (30). The motor (32) is mounted on the fixed frame (30), and the output shaft of the motor (32) is connected to one end of the shaft of the take-up roller (31). Gear one (33) is fixed on the other end of the shaft of the take-up roller (31). The reciprocating screw (34) and the slide bar (35) are both... Parallel to the take-up roller (31), the reciprocating screw (34) is rotatably mounted on the fixed frame (30), and the slide rod (35) is fixedly connected to the fixed frame (30). One end of the reciprocating screw (34) is fixed with a gear two (36), which meshes with the gear one (33). The moving block (37) is fitted on the reciprocating screw (34) and the slide rod (35) and is threadedly engaged with the reciprocating screw (34). One end of the lifting rope (38) is fixed and wound around the take-up roller (31), and the other end of the lifting rope (38) is wound out of the take-up roller (31) and supported by the moving block (37). After passing over the end of the adjusting part (2), it is connected downward to the hook (39).
2. A hoisting device according to claim 1, characterised in that: The adjustment unit (2) includes a rotating arm (21) and a telescopic arm (22). The bottom of the rotating arm (21) is mounted on the support platform (11) via a turntable. The top of the rotating arm (21) is hinged to the fixed body (221) of the telescopic arm (22). A connecting frame (23) is fixed to the end of the telescopic body (222) in the telescopic arm (22). The rotating rod (24) is rotatably mounted on the connecting frame (23). One end of the first electric push rod (25) is hinged to the middle of the rotating arm (21), and the other end is hinged to the middle of the telescopic arm (22). The fixed frame 30 is fixed on the top surface of the fixed body (221) in the telescopic arm (22), and the rotating rod (24) is used to support the suspension rope (38) that passes around the end of the adjustment part (2).
3. A hoisting device according to claim 1 or 2, characterised in that: The top of the movable block (37) is rotatably mounted with a pulley (371), and the suspension rope (38) is supported by the pulley (371) after passing through the winding roller (31).
4. A hoisting device according to claim 1 or 2, characterised in that: The bottom of the support platform (11) is fixed with two support rods (13) in parallel, and four casters (12) are respectively installed at both ends of the two support rods (13).
5. A hoisting device according to claim 2, characterised in that: A fixing plate (223) is fixed on one side of the fixing body (221) in the telescopic arm (22), and the second electric push rod (224) is fixed on the fixing plate (223). The output end of the second electric push rod (224) is connected to the connecting frame (23) at the end of the telescopic body (222).
6. A hoisting device according to claim 5, characterised in that: Two second electric push rods (224) are respectively arranged on two sides of the fixed body (221) in the telescopic arm (22).
7. A hoisting device according to claim 5 or 6, characterised in that: The first electric push rod (25) and the second electric push rod (224) are respectively replaced by a first oil cylinder and a second oil cylinder.