CN219314438U - Lifting device of crane lifting appliance - Google Patents
Lifting device of crane lifting appliance Download PDFInfo
- Publication number
- CN219314438U CN219314438U CN202320303909.9U CN202320303909U CN219314438U CN 219314438 U CN219314438 U CN 219314438U CN 202320303909 U CN202320303909 U CN 202320303909U CN 219314438 U CN219314438 U CN 219314438U
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- rotating
- wire rope
- steel wire
- fixedly connected
- lifting device
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Abstract
The utility model relates to the technical field of lifting devices, in particular to a lifting device of a crane lifting appliance, b comprises two fixed plates, one sides of the two fixed plates are provided with a winch, and a steel wire rope is wound on the winch; according to the utility model, when the broken steel wire rope drives the two guide wheels, the rotating column and the ratchet wheel to rotate, and meanwhile, the broken steel wire rope cannot press the connecting block, so that the torsion spring with elastic deformation drives the connecting block to reset, the connecting block reset clamping block clamps the ratchet wheel, the ratchet wheel slowly rotates to drive the clamping block and the sliding rod to move upwards, the sliding rod moves upwards to drive the reset spring to compress and elastically deform, the ratchet teeth repeatedly squeeze the clamping block to move upwards, so that the downward speed of a heavy object can be delayed, the condition that the lifted heavy object slowly falls down is realized even after the steel wire rope is broken, enough time is provided for workers to take emergency measures, and accidents can be prevented.
Description
Technical Field
The utility model relates to the technical field of lifting devices, in particular to a lifting device of a crane lifting appliance.
Background
A crane is a machine that uses a hook or other object-taking device to hang a heavy object and performs cyclic operations such as lifting and moving in space. There are many classifications of cranes, and the terms "crane", "tower crane", "overhead crane", "crane" and the like refer to one or more types of cranes.
The Chinese patent with the publication number of CN210825143U discloses a crane lifting device, which comprises: the inner cavity of the trolley frame body is provided with a rotating shaft; the winding drum is sleeved on the rotating shaft, a steel wire rope is wound on the outer side of the winding drum, and one end of the steel wire rope is fixedly connected with the winding drum; the lifting plate is triangular and arranged below the winding drum, and lifting holes are respectively formed in three angular positions of the lifting plate; one end of the first lifting rope is fixedly connected with the second lifting hole; and one end of the second lifting rope is fixedly connected with the third lifting hole.
Based on the above search in combination with the prior art findings:
most of the existing lifting devices of the crane lifting appliance adopt steel wire ropes to lift, and because the steel wire ropes are rubbed with the rotating wheels for a long time to generate fracture, the lifted heavy objects fall down rapidly after the steel wire ropes are broken, so that workers do not have enough time to take emergency measures, and accidents are easy to occur.
Disclosure of Invention
The utility model aims to provide a lifting device of a crane lifting appliance, which aims to solve the problems in the prior art.
The technical scheme of the utility model is as follows: the lifting device of the crane sling comprises two fixed plates, wherein one side of each fixed plate is provided with a winch, and a steel wire rope is wound on each winch;
the two rotating columns are fixedly connected to the two fixing plates, guide wheels are fixedly sleeved on the two rotating columns, and a ratchet wheel is connected to one rotating column through a key;
the rotating wheel is rotationally connected to the two fixed plates, and one end of the steel wire rope passes through the space between the two guide wheels by bypassing the rotating wheel;
the rotating mechanism is positioned on the fixed plate;
the rotating mechanism comprises a rotating rod which is connected onto the two fixing plates in a common rotating mode, a fixing frame is fixedly sleeved on the rotating rod, a sliding groove is formed in the bottom end of the fixing frame, a clamping block is connected in the sliding groove in a sliding mode, the clamping block is matched with the ratchet wheel, a connecting block is fixedly sleeved on the rotating rod, the connecting block is attached to the steel wire rope, a torsion spring is sleeved on the rotating rod, and two ends of the torsion spring are fixedly connected with the connecting block and one of the fixing plates respectively.
Preferably, the top fixedly connected with slide bar of fixture block, the slide hole has been seted up to the top inner wall of spout, and the top of slide bar runs through the slide hole, has cup jointed reset spring on the slide bar, reset spring's both ends respectively with mount and slide bar fixed connection.
Preferably, the two fixing plates are fixedly connected with a limiting rod together, and the limiting rod is matched with the connecting block.
Preferably, a plurality of fixing rods are fixedly connected to one sides, close to each other, of the two fixing plates.
Preferably, two one sides of the fixed plates, which are close to each other, are fixedly connected with a fixed block, the top of the fixed block is rotationally connected with two rollers, and the two rollers are attached to the steel wire rope.
Preferably, the bottom end of the steel wire rope is fixedly connected with a hook.
Compared with the prior art, the utility model provides the lifting device of the crane lifting appliance, which has the following improvements and advantages:
according to the utility model, when the wire rope for lifting the weight is broken at the position of the rotating wheel, the wire rope moves downwards to drive the two guide wheels, the rotating column and the ratchet wheel to rotate, and meanwhile, the broken wire rope cannot press the connecting block, so that the torsion spring with elastic deformation drives the connecting block to reset, the connecting block reset fixture block clamps the ratchet wheel, the ratchet wheel slowly rotates to drive the fixture block and the slide bar to move upwards, the slide bar moves upwards to drive the reset spring to compress and elastically deform, so that ratchet teeth repeatedly squeeze the fixture block to move upwards, the downward speed of the weight can be delayed, the situation that the lifted weight slowly falls down is realized, enough time is provided for workers to take emergency measures, and accidents can be prevented.
Drawings
The utility model is further explained below with reference to the drawings and examples:
FIG. 1 is a schematic overall perspective view of the present utility model;
FIG. 2 is a schematic diagram of a three-dimensional structure of the cooperation of the steel wire rope and the connecting block;
FIG. 3 is a schematic view of a latch and ratchet mating structure of the present utility model;
fig. 4 is a schematic view of the cooperation of the fixture block, the sliding rod and the fixing frame in the three-dimensional structure.
Reference numerals illustrate:
1. a fixing plate; 101. a hoist; 102. a wire rope; 103. a rotating wheel; 104. fixing a rod; 105. a fixed block; 106. a roller; 107. a hook; 2. rotating the column; 201. a guide wheel; 202. a ratchet wheel; 203. a clamping block; 204. a fixing frame; 205. a rotating lever; 206. a connecting block; 207. a torsion spring; 208. a limit rod; 209. a slide bar; 210. and a return spring.
Detailed Description
The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a lifting device of a crane lifting appliance through improvement, which comprises the following technical scheme:
as shown in fig. 1-4, a lifting device of a crane lifting appliance comprises two fixing plates 1, wherein one side of each fixing plate 1 is provided with a winch 101, and a steel wire rope 102 is wound on each winch 101, and the lifting device further comprises;
the two rotating columns 2 are fixedly connected to the two fixing plates 1, guide wheels 201 are fixedly sleeved on the two rotating columns 2, and a ratchet 202 is connected to one rotating column 2 through a key;
the rotating wheel 103, the rotating wheel 103 is rotatably connected to the two fixed plates 1, and one end of the wire rope 102 passes through the space between the two guide wheels 201 by bypassing the rotating wheel 103;
the rotating mechanism is positioned on the fixed plate 1;
the rotating mechanism comprises a rotating rod 205 which is connected onto two fixing plates 1 in a rotating way, a fixing frame 204 is fixedly sleeved on the rotating rod 205, a sliding groove is formed in the bottom end of the fixing frame 204, a clamping block 203 is connected in the sliding groove in a sliding way, the clamping block 203 is matched with a ratchet 202, a connecting block 206 is fixedly sleeved on the rotating rod 205, the connecting block 206 is attached to a steel wire rope 102, a torsion spring 207 is sleeved on the rotating rod 205, two ends of the torsion spring 207 are respectively fixedly connected with the connecting block 206 and one of the fixing plates 1, a sliding rod 209 is fixedly connected to the top end of the clamping block 203, a sliding hole is formed in the inner wall of the top of the sliding groove, the top end of the sliding rod 209 penetrates through the sliding hole, a reset spring 210 is sleeved on the sliding rod 209, and two ends of the reset spring 210 are respectively fixedly connected with the fixing frame 204 and the sliding rod 209; by means of the structure, through the arrangement of the rotating mechanism, the suspended weight is in a slowly falling state even after the steel wire rope 102 is broken, enough time is provided for workers to take emergency measures, and accidents can be prevented.
Further, a limit rod 208 is fixedly connected to the two fixing plates 1 together, and the limit rod 208 is matched with the connecting block 206; by means of the structure, the limiting rod 208 is arranged, so that the limiting effect on the connecting block 206 is achieved.
Further, a plurality of fixing rods 104 are fixedly connected to the sides, close to each other, of the two fixing plates 1; by the above structure, the two fixing plates 1 are fixed more firmly by the arrangement of the fixing rods 104.
Further, a fixed block 105 is fixedly connected to one side, close to each other, of the two fixed plates 1, two rollers 106 are rotatably connected to the top of the fixed block 105, and the two rollers 106 are attached to the steel wire rope 102; by virtue of the above structure, the stability of the wire rope 102 is improved by the arrangement of the rollers 106.
Further, the bottom end of the steel wire rope 102 is fixedly connected with a hook 107; by means of the structure, through the arrangement of the hooks 107, the hooks 107 are heavy in weight, and the steel wire rope 102 can be straightened under the action of gravity.
Working principle: when the wire rope 102 for lifting the heavy object breaks at the position of the rotating wheel 103, the heavy object falls to drive the broken wire rope 102 to move downwards, the wire rope 102 moves downwards to drive the two guide wheels 201, the rotating column 2 and the ratchet 202 to rotate, meanwhile, the broken wire rope 102 cannot press the connecting block 206, the torsion spring 207 which is elastically deformed drives the connecting block 206 to reset and is contacted with the limit rod 208, the connecting block 206 resets to drive the rotating rod 205 and the fixing frame 204 to rotate, the fixing frame 204 rotates to drive the clamping block 203 to rotate and contact with the ratchet 202, the clamping block 203 clamps the ratchet 202, at the moment, the heavy object is overturned to drive the clamping block 203 and the slide rod 209 to move upwards, the slide rod 209 moves upwards to drive the reset spring 210 to compress and elastically deform, so that the clamping block 203 is repeatedly extruded upwards, and the downward speed of the heavy object can be delayed, so that even if the wire rope 102 breaks, the lifted heavy object is in a slowly downward falling state, enough time is provided for workers to take emergency measures, and accidents can be prevented.
Claims (6)
1. The utility model provides a hoist plays to rise device, includes two fixed plates (1), its characterized in that: one side of each of the two fixing plates (1) is provided with a winch (101), and a steel wire rope (102) is wound on each winch (101) and further comprises;
the two rotating columns (2), the two rotating columns (2) are fixedly connected to the two fixing plates (1), the two rotating columns (2) are fixedly sleeved with guide wheels (201), and a ratchet wheel (202) is connected to one rotating column (2) through a key;
the rotating wheel (103), the rotating wheel (103) is rotatably connected to the two fixed plates (1), and one end of the steel wire rope (102) bypasses the rotating wheel (103) and passes through the space between the two guide wheels (201);
the rotating mechanism is positioned on the fixed plate (1);
the rotating mechanism comprises rotating rods (205) which are connected onto two fixing plates (1) in a common rotating mode, fixing frames (204) are fixedly sleeved on the rotating rods (205), sliding grooves are formed in the bottom ends of the fixing frames (204), clamping blocks (203) are connected in the sliding grooves in a sliding mode, the clamping blocks (203) are matched with ratchet wheels (202), connecting blocks (206) are fixedly sleeved on the rotating rods (205), the connecting blocks (206) are attached to steel wire ropes (102), torsion springs (207) are sleeved on the rotating rods (205), and two ends of each torsion spring (207) are fixedly connected with the corresponding connecting block (206) and one of the fixing plates (1).
2. The crane sling lifting device as defined in claim 1, wherein: the top fixedly connected with slide bar (209) of fixture block (203), the slide hole has been seted up to the top inner wall of spout, and the top of slide bar (209) runs through the slide hole, has cup jointed reset spring (210) on slide bar (209), and reset spring (210)'s both ends are respectively with mount (204) and slide bar (209) fixed connection.
3. The crane sling lifting device as defined in claim 2, wherein: and the two fixing plates (1) are fixedly connected with a limiting rod (208) together, and the limiting rod (208) is matched with the connecting block (206).
4. The crane sling lifting device as defined in claim 2, wherein: a plurality of fixing rods (104) are fixedly connected to one sides, close to each other, of the two fixing plates (1).
5. The crane sling lifting device as defined in claim 4 wherein: two one side that fixed plate (1) is close to each other is fixedly connected with fixed block (105) jointly, and the top of fixed block (105) rotates and is connected with two gyro wheels (106), and two gyro wheels (106) are all laminated with wire rope (102).
6. The crane sling lifting device as defined in claim 1, wherein: the bottom end of the steel wire rope (102) is fixedly connected with a hook (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303909.9U CN219314438U (en) | 2023-02-23 | 2023-02-23 | Lifting device of crane lifting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303909.9U CN219314438U (en) | 2023-02-23 | 2023-02-23 | Lifting device of crane lifting appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219314438U true CN219314438U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320303909.9U Active CN219314438U (en) | 2023-02-23 | 2023-02-23 | Lifting device of crane lifting appliance |
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| Country | Link |
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| CN (1) | CN219314438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117023428A (en) * | 2023-08-08 | 2023-11-10 | 湖北工业大学 | Tower crane safety device, auxiliary climbing equipment for tower crane and lifting equipment for tower crane |
-
2023
- 2023-02-23 CN CN202320303909.9U patent/CN219314438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117023428A (en) * | 2023-08-08 | 2023-11-10 | 湖北工业大学 | Tower crane safety device, auxiliary climbing equipment for tower crane and lifting equipment for tower crane |
| CN117023428B (en) * | 2023-08-08 | 2024-03-12 | 湖北工业大学 | Tower crane safety device, auxiliary climbing equipment for tower crane and lifting equipment for tower crane |
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