A three-head pneumatic spreader
By designing a three-head pneumatic spreader, the synergy between the cylinder and the clamp, combined with the accurate alignment of the laser emitter, the problem of poor stability of I-wheel lifting in the prior art is solved, and the lifting effect with high safety and stability is achieved.
Patent Information
- Application Number
- CN202420664216.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The prior art has poor stability when hoisting steel cord I-wheels, which poses great safety hazards.
A three-headed pneumatic spreader is designed, including crossbeams, electric chain hoists, cylinders, clamps and laser emitters. The crossbar is driven by the electric chain hoist, and the cylinder drives the clamp to clamp the I-wheel, and a laser emitter is used to ensure accurate alignment of the central hole of the I-wheel.
The stable lifting of I-wheels is achieved, the safety and stability of the lifting are improved, and safety hazards caused by unstable lifting are avoided.
Smart Images
Figure CN222714902U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hoisting of spools, in particular to a three-head pneumatic sling. Background Technique
[0002] Steel cord is composed of two or more steel wires, or a structure formed by the combination of strands and strands or the combination of strands and wires. When stored, the steel cord is wound around the outer peripheral side of the spool.
[0003] Currently, when hoisting and packing the steel cord spools, most of them use steel wire ropes for bundling, or fix a U-shaped iron block at the output end of the overhead crane. One side of the U-shaped iron block passes through the center of the spool, and then the U-shaped iron block is lifted to drive the spool to rise. The stability of this kind of sling for hoisting is poor, and there are great potential safety hazards. Content of the Utility Model
[0004] According to the deficiencies of the existing technology, the purpose of the utility model is to provide a three-head pneumatic sling to facilitate solving the technical problems mentioned in the above background technique.
[0005] The above technical purpose of the utility model is achieved through the following technical solutions:
[0006] A three-head pneumatic sling includes a cross beam. The top of the cross beam is connected to an overhead crane through an electric chain hoist. A plurality of bottom plates are fixedly connected to the bottom of the cross beam. A clamping member is arranged below the bottom plates. A pneumatic valve switch is fixedly connected to one side of the cross beam;
[0007] The clamping member includes a cylinder fixedly connected to the bottom of the bottom plate. A plurality of the cylinders are all connected to the pneumatic valve switch through a gas circuit. A pressing plate is fixedly connected to the output end of the cylinder. The pressing plate is horizontally arranged. A fixed column is fixedly connected to the bottom of the bottom plate. A clamping part is arranged between the fixed column and the pressing plate.
[0008] Further, the clamping part includes two rotating plates rotatably connected to opposite side walls of the fixed column through pin shafts. A support plate is fixedly connected to the top of the pressing plate corresponding to the rotating plate. The support plate and the corresponding rotating plate are rotatably connected through a pin shaft. A clamping sleeve is fixedly connected to one end of the rotating plate away from the fixed column. The clamping sleeve is arranged in a U shape.
[0009] Further, a laser emitter is fixedly connected to the bottom of the pressing plate at a position corresponding to the center hole of the spool. When the pressing plate fits with the top surface of the spool, the laser emitter is inserted into the center hole of the spool.
[0010] To sum up, the utility model includes at least the following beneficial technical effects:
[0011] 1. This three-head pneumatic hoist, the electric chain hoist drives the crossbeam to fall, so that the pressure plate contacts the top surface of the I-shaped wheel, and then presses the air valve switch to drive several cylinders to work synchronously. The cylinder drives the rotating plate to rotate, and the clamping sleeve moves toward the I-shaped wheel. Finally, the clamping sleeve is in a horizontal state and the top wall of the I-shaped wheel is partially located in the clamping sleeve. At this time, the electric chain hoist drives the crossbeam to rise, and the clamping sleeve moves upward to contact the bottom surface of the top wall of the I-shaped wheel and lift the I-shaped wheel up, thereby realizing the hoisting of the I-shaped wheel, with high stability and safety;
[0012] 2. This three-head pneumatic hoist, before the I-shaped wheel is hoisted, the laser transmitter works to emit light downward. If the light is not inserted into the center hole of the I-shaped wheel, the position of the I-shaped wheel is not compatible with the position of the clamping part. The staff can move the position of the beam and the clamping part through the overhead crane, and then drive the beam to fall to hoist the I-shaped wheel, which further improves the stability of the hoisting. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0014] Figure 1 is a three-dimensional front view of a three-head pneumatic spreader of the present embodiment;
[0015] Figure 2 is a three-dimensional bottom view of a three-head pneumatic spreader of the present embodiment;
[0016] Figure 3 This embodiment Figure 1 Enlarged view of point A in the middle.
[0017] In the figure, 1, cross beam; 2, bottom plate; 3, clamping part; 31, cylinder; 32, pressure plate; 33, fixed column; 34, clamping part; 35, rotating plate; 36, supporting plate; 37, clamping sleeve; 4, air valve switch; 5, laser transmitter. DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0019] Example:
[0020] Reference Figures 1 to 3 The utility model discloses a three-head pneumatic hoist, comprising a crossbeam 1, the top of which is connected to the overhead crane through an electric chain hoist. Three bottom plates 2 are fixedly connected to the bottom of the crossbeam 1, a clamping member 3 is arranged below the bottom plate 2, and a gas valve switch 4 is fixedly connected to one side of the crossbeam 1.
[0021] The clamping member 3 includes a cylinder 31 fixedly connected to the bottom of the bottom plate 2, and all three cylinders 31 are pneumatically connected to the air valve switch 4. The output end of the cylinder 31 is fixedly connected with a pressing plate 32. The pressing plate 32 is horizontally arranged. A fixed column 33 is fixedly connected to the bottom of the bottom plate 2, and a clamping portion 34 is arranged between the fixed column 33 and the pressing plate 32.
[0022] In this embodiment, when the electric chain hoist works, it can drive the cross beam 1 to move vertically, and when the overhead crane works, it can drive the electric chain hoist and the cross beam 1 to move horizontally together. This is the prior art and will not be elaborated here.
[0023] A plurality of cylinders 31 are all pneumatically connected to the air valve switch 4, and the air valve switch 4 is pneumatically connected to the air compressor. Therefore, when the air valve switch 4 is opened, it can drive the three cylinders 31 to synchronously extend or contract.
[0024] In the initial state, the工字轮 (I-shaped wheel) is placed below the pressing plate 32, and the cylinder 31 is in a compressed state. When it is necessary to hoist the工字轮 (I-shaped wheel), the electric chain hoist drives the cross beam 1 to move downward, and the cross beam 1 drives the clamping member 3 to move downward until the pressing plate 32 contacts the top surface of the工字轮 (I-shaped wheel).
[0025] In a further preferred embodiment of the present invention, as Figure 3 shown, the clamping portion 34 includes two rotating plates 35 rotatably connected to the opposite side walls of the fixed column 33 through a pin shaft. A support plate 36 is fixedly connected to the top of the pressing plate 32 corresponding to the rotating plate 35, and the support plate 36 and the corresponding rotating plate 35 are rotatably connected through a pin shaft. The end of the rotating plate 35 far from the fixed column 33 is fixedly connected with a clamping sleeve 37, and the clamping sleeve 37 is arranged in a shape of "匚".
[0026] In this embodiment, in the initial state, the included angle between the two rotating plates 35 is relatively large, the distance between the two clamping sleeves 37 is relatively far, and the clamping sleeve 37 will not contact the工字轮 (I-shaped wheel) when falling.
[0027] After the pressing plate 32 contacts the top surface of the工字轮 (I-shaped wheel), the worker adjusts the air valve switch 4 to drive the cylinder 31 to extend. Since the pressing plate 32 cannot move downward anymore, the cylinder 31 extends to drive the cross beam 1 to move upward, the cross beam 1 drives the fixed column 33 to move, the fixed column 33 drives the two rotating plates 35 to rotate, the included angle between the two rotating plates 35 decreases, the distance between the two clamping sleeves 37 decreases until the two clamping sleeves 37 are both in a horizontal state (as Figure 1 shown), the cylinder 31 stops moving. At this time, a part of the top wall of the工字轮 (I-shaped wheel) is located inside the clamping sleeve 37.
[0028] It should be noted that the "工字轮" in the text is a specific component name in Chinese, and if there is a more accurate English term, it can be replaced accordingly. Here it is directly transliterated for the purpose of translation.Then the electric chain hoist drives the crossbeam 1 to rise, and the crossbeam 1 drives the three clamping parts 3 to rise, and the clamping sleeve 37 moves upward to contact the bottom surface of the top wall of the I-shaped wheel and lift the I-shaped wheel up. Then the crane drives the I-shaped wheel to move to a suitable position, and then the electric chain hoist drives the crossbeam 1 to descend, so that the I-shaped wheel falls to the ground, and the staff adjusts the air valve switch 4 to drive the cylinder 31 to contract, and the pressure plate 32 moves upward, driving the two rotating plates 35 and the two clamping sleeves 37 to rotate in reverse and return to their original positions, and then the electric chain hoist drives the crossbeam 1 to rise, thereby realizing the hoisting and transportation of the I-shaped wheel.
[0029] In a further preferred embodiment of the present invention, Figure 1 As shown, a laser emitter 5 is fixedly connected to the position of the bottom of the pressure plate 32 corresponding to the center hole of the I-shaped wheel. When the pressure plate 32 is in contact with the top surface of the I-shaped wheel, the laser emitter 5 is inserted into the center hole of the I-shaped wheel.
[0030] In this embodiment, before the I-shaped wheel is hoisted, the laser emitter 5 works to emit light downward. If the light is not inserted into the center hole of the I-shaped wheel, the position of the I-shaped wheel is not compatible with the position of the clamping member 3. The staff can move the position of the beam 1 and the clamping member 3 through the overhead crane, and then drive the beam 1 to fall to hoist the I-shaped wheel, thereby improving the stability of the hoisting.
[0031] The implementation principle of the above embodiment is:
[0032] In the initial state, the spool is placed below the pressure plate 32, and the cylinder 31 is in a compressed state. The laser emitter 5 emits light downward. If the light does not enter the center hole of the spool, the position of the spool does not match the position of the clamp 3. The staff can move the crossbeam 1 and the clamp 3 through the overhead crane until the light enters the center hole of the spool. Then the electric chain hoist drives the crossbeam 1 to move downward, and the crossbeam 1 drives the clamp 3 to move downward until the pressure plate 32 contacts the top surface of the spool.
[0033] Then the staff adjusts the air valve switch 4 to drive the cylinder 31 to extend. Since the pressure plate 32 can no longer move downward, the extension of the cylinder 31 drives the beam 1 to move upward, and the beam 1 drives the fixed column 33 to move. The fixed column 33 drives the two rotating plates 35 and the two clamping sleeves 37 to rotate towards each other until the two clamping sleeves 37 are in a horizontal state.
[0034] Then the electric chain hoist drives the crossbeam 1 to rise, and the clamping sleeve 37 moves upward to contact the bottom surface of the top wall of the spool and lift the spool. The crane drives the spool to move to a suitable position, and then the electric chain hoist drives the crossbeam 1 to descend, so that the spool falls to the ground. Finally, the staff adjusts the air valve switch 4 to drive the cylinder 31 to contract, and the pressure plate 32 moves upward, driving the two rotating plates 35 and the two clamping sleeves 37 to rotate in opposite directions and return to their original positions, no longer clamping the spool, thus completing the lifting operation of the spool.
[0035] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A three-head pneumatic hoist, comprising a crossbeam (1), the top of which is connected to a crane via an electric chain hoist, characterized in that: A number of bottom plates (2) are fixedly connected to the bottom of the cross beam (1), a clamping member (3) is arranged below the bottom plate (2), and an air valve switch (4) is fixedly connected to one side of the cross beam (1); The clamping member (3) includes a cylinder (31) fixedly connected to the bottom of the bottom plate (2). A number of the cylinders (31) are all connected to the air valve switch (4) through an air circuit. A pressing plate (32) is fixedly connected to the output end of the cylinder (31). The pressing plate (32) is horizontally arranged. A fixing column (33) is fixedly connected to the bottom of the bottom plate (2). A clamping part (34) is arranged between the fixing column (33) and the pressing plate (32).
2. A three-head pneumatic spreader according to claim 1, characterized in that: The clamping part (34) includes two rotating plates (35) rotatably connected to opposite side walls of the fixing column (33) through a pin shaft. A support plate (36) is fixedly connected to the top of the pressing plate (32) corresponding to the rotating plate (35). The support plate (36) and the corresponding rotating plate (35) are rotatably connected through a pin shaft. A clamping sleeve (37) is fixedly connected to one end of the rotating plate (35) away from the fixing column (33). The clamping sleeve (37) is arranged in a U shape.
3. A three-head pneumatic spreader according to claim 2, characterized in that: A laser emitter (5) is fixedly connected to the bottom of the pressing plate (32) corresponding to the center hole of the工字轮. When the pressing plate (32) is attached to the top surface of the工字轮, the laser emitter (5) is inserted into the center hole of the工字轮. It should be noted that there is an unclear "工字轮" in the original text. It might be a specific technical term that needs to be accurately defined in the relevant context. Here, it is directly translated as "工字轮" for the time being.