An automatic continuous chain hoist

Abstract

The utility model discloses an automatic continuous chain hoist belongs to chain hoist field, including material frame and hoist frame, be provided with the lifting chain on hoist frame, and be provided with the lifting hook on lifting chain, be provided with the first limit switch on material frame, and be provided with the second limit switch on material frame, and the lower extreme of material frame and hoist frame is provided with the supporting leg. Through the multi-lifting hook force lifting and three chain synchronous structure, realize the non -intermittent efficient lifting transportation of cylindrical steel, effectively improve transportation efficiency, coupling linkage three groups of chain, ensure that the lifting hook synchronous operation, effectively prevent the steel inclination or unhook, adopt the first limit switch and the second limit switch, double limit switch cooperative positioning combines the supporting leg of adjustable bottom use, guarantee the precision and attitude stability of steel grabbing, the whole equipment can realize the automatic hook and take the lifting, need not manual participation, can effectively guarantee the safety of work lifting environment, improve the operation safety.

Description

Technical Field

[0001] This utility model relates to the field of chain elevators, and in particular to an automatic continuous chain elevator. Background Technology

[0002] In the fields of iron and steel metallurgy, heavy machinery manufacturing, and large-scale engineering construction, the lifting and transportation of cylindrical steel materials (such as round bars, billets, and rollers) is a critical link in the production process. These materials generally have the characteristics of large individual weight, high surface smoothness, and significant length-to-diameter ratio, making them prone to rolling, slippage, or center of gravity shift during the lifting process.

[0003] Traditional handling methods mainly rely on overhead cranes or intermittent lifting equipment. These devices often use single-chain drive. When lifting cylindrical steel, manual assistance is required to hook the steel. The initial positioning and posture of the steel depend on manual operation. Furthermore, single-chain drive is prone to causing the center of gravity to shift, which affects the stability of the lifting. Manual hooking requires pausing the equipment, which means that the equipment can only lift steel intermittently and cannot achieve continuous operation. At the same time, manual operation results in low automation and mediocre performance. Utility Model Content

[0004] The main objective of this invention is to provide an automatic continuous chain elevator that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automatic continuous chain elevator includes a material rack and an elevator frame. The elevator frame is provided with an elevator chain and an elevator hook. The material rack is provided with a first limit switch and a second limit switch. The lower ends of the material rack and the elevator frame are provided with support legs.

[0006] Preferably, the lifting frame is provided with a rotating wheel, and the rotating wheel is provided with a rotating shaft, and a coupling is provided between the rotating shafts.

[0007] Preferably, a motor is fixed on the lifting frame, and a drive wheel is provided on the output shaft of the motor. A sprocket is provided on the rotating shaft, and a transmission chain is provided on the sprocket and the drive wheel.

[0008] Preferably, the first limit switch includes a mounting base, a first cylinder, a feeding rack, a telescopic rod, and a first control valve. The mounting base is fixed on the material rack, the first cylinder is mounted on the mounting base, the feeding rack is rotatably mounted on the material rack, the telescopic rod is mounted on the first cylinder, and the end of the telescopic rod is rotatably connected to the feeding rack. The first control valve is mounted on the mounting base.

[0009] Preferably, the second limit switch includes a limit block, an inclined block, a fixed base, a second cylinder, a top block, and a second control valve. The limit block and the inclined block are fixed on the material rack, the fixed base is located on the inner side of the material rack, the second cylinder is fixed on the fixed base, and the telescopic shaft of the second cylinder is connected to the top block. The second control valve is fixed on the fixed base.

[0010] Preferably, the support leg consists of a fixed plate, an adjusting screw, a base plate, and a guide rod. The base plate and the guide rod are fixedly connected, and the guide rod passes through the fixed plate. The adjusting screw is mounted on the fixed plate, and the lower end of the adjusting screw abuts against the base plate.

[0011] Compared with existing technologies, this utility model has the following advantages: This automatic continuous chain hoist uses multiple lifting chains with multiple lifting hooks evenly arranged on them. Through the relay lifting of multiple lifting hooks and the three-chain synchronous structure, it achieves uninterrupted and efficient lifting and transportation of cylindrical steel, effectively improving transportation efficiency. The coupling links the three sets of chains to ensure synchronous operation of the lifting hooks, effectively preventing the steel from tilting or disengaging. The use of a first limit switch and a second limit switch, combined with adjustable support feet at the bottom, ensures the accuracy and stability of the steel gripping. The entire device can achieve automated hooking and lifting without manual intervention, effectively ensuring the safety of the working lifting environment and improving operational safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first limit switch of this utility model; Figure 3 This is a schematic diagram of the structure of the second limit switch of this utility model; Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0013] In the diagram: 1. Material rack; 2. Lifting frame; 3. Lifting chain; 4. First limit switch; 401. Mounting base; 402. First cylinder; 403. Discharge rack; 404. Telescopic rod; 405. First control valve; 5. Second limit switch; 501. Limit stop; 502. Inclined stop; 503. Fixed base; 504. Second cylinder; 505. Top block; 506. Second control valve; 6. Lifting hook; 7. Rotating shaft; 8. Coupling; 9. Sprocket; 10. Motor; 11. Transmission chain; 12. Support leg. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figures 1-4 As shown, an automatic continuous chain elevator includes a material rack 1 and an elevator frame 2. The elevator frame 2 is provided with an elevator chain 3 and an elevator hook 6. The material rack 1 is provided with a first limit switch 4 and a second limit switch 5. The lower ends of the material rack 1 and the elevator frame 2 are provided with support legs 12.

[0016] The lifting frame 2 is equipped with rotating wheels, and rotating shafts 7 are mounted on the rotating wheels. A coupling 8 is connected between the rotating shafts 7. A motor 10 is fixed on the lifting frame 2, and a drive wheel is mounted on the output shaft of the motor 10. A sprocket 9 is mounted on the rotating shaft 7, and a transmission chain 11 is mounted on the sprocket 9 and the drive wheel. The support leg 12 consists of a fixed plate, an adjusting screw, a base plate, and a guide rod. The base plate and the guide rod are fixedly connected, and the guide rod passes through the fixed plate. The adjusting screw is mounted on the fixed plate, and the lower end of the adjusting screw abuts against the base plate.

[0017] When using a continuous chain hoist to lift cylindrical steel, the entire machine is placed in a suitable position. The height and tilt angle of the material rack 1 and the lifting rack 2 are adjusted by using the support legs 12. During adjustment, the adjusting screw on the fixed plate is rotated, and the base plate moves relative to the fixed plate via the guide rod, thereby completing the adjustment of the material rack 1 and the lifting rack 2. After adjustment, the machine is put into use.

[0018] During the lifting operation, an automated guided vehicle transports bundles of cylindrical steel to the material rack 1. After manual unpacking, the steel is placed on the material rack 1. A first limit switch 4 limits the steel's movement. When there is no steel at the second limit switch 5, the first limit switch 4 is activated, releasing the steel to the second limit switch 5. As the second limit switch 5 moves, the steel rolls to the end of the material rack 1. Simultaneously, the motor 10 drives the sprocket 9 via the transmission chain 11, which in turn drives the corresponding shaft 7. Under the action of the coupling 8, the other shafts 7 rotate synchronously, thus driving the three lifting chains 3 to move synchronously. The lifting hook 6 moves along with the lifting chains 3. Once the lifting hook 6 picks up a cylindrical steel, it lifts it. After the steel at the second limit switch 5 is lifted, the same process is repeated for subsequent automatic steel lifting. The structure is simple and allows for continuous lifting.

[0019] According to the above implementation scheme, the first limit switch 4 includes a mounting base 401, a first cylinder 402, a feeding rack 403, a telescopic rod 404, and a first control valve 405. The mounting base 401 is fixed on the material rack 1, the first cylinder 402 is mounted on the mounting base 401, the feeding rack 403 is rotatably mounted on the material rack 1, the telescopic rod 404 is mounted on the first cylinder 402, and the end of the telescopic rod 404 is rotatably connected to the feeding rack 403. The first control valve 405 is mounted on the mounting base 401.

[0020] When using the first limit switch 4, initially, one end of the feeding rack 403 is in a protruding state. After the steel bundle is placed on the material rack 1 and disassembled, the cylindrical steel is blocked by the feeding rack 403. When the steel needs to be released, the first control valve 405 controls the first cylinder 402 on the mounting base 401 to run. The telescopic rod 404 carries the feeding rack 403 to flip and make way on the material rack 1, so that the steel can roll to the second limit switch 5 for further processing. After release, the first cylinder 402 runs again, and the telescopic rod 404 carries the feeding rack 403 to flip and reset to continue blocking the steel.

[0021] According to the above implementation scheme, the second limit switch 5 includes a limit block 501, an inclined block 502, a fixed seat 503, a second cylinder 504, a top block 505, and a second control valve 506. The limit block 501 and the inclined block 502 are fixed on the material rack 1. The fixed seat 503 is located on the inner side of the material rack 1. The second cylinder 504 is fixed on the fixed seat 503, and the telescopic shaft of the second cylinder 504 is connected to the top block 505. The second control valve 506 is fixed on the fixed seat 503.

[0022] The steel moves from the first limit switch 4 to the second limit switch 5. It is first blocked by the inclined block 502. After the second control valve 506 on the fixed base 503 is activated, the second cylinder 504 moves and lifts the top block 505 under the control of the second control valve 506. The inclined surface of the top block 505 works with the inclined block 502 to make the cylindrical steel move upward. When the steel moves to the top of the inclined block 502, it rolls along the inclined block 502 and finally stops at the limit block 501. The second cylinder 504 moves and lowers the top block 505 to reset. The lifting chain 3 moves with the lifting hook 6 to hook and lift the steel.

[0023] It should be noted that the relay lifting of multiple lifting hooks 6 and the three-chain synchronous structure enable uninterrupted and efficient lifting and transportation of cylindrical steel, effectively improving transportation efficiency. The coupling 8 links the three sets of chains to ensure the synchronous operation of the lifting hooks 6, effectively preventing the steel from tilting or detaching. The use of the first limit switch 4 and the second limit switch 5, combined with the adjustable support feet 12 at the bottom, ensures the accuracy and stability of the steel gripping. The entire device can achieve automated hooking and lifting without manual intervention, effectively ensuring the safety of the working environment and improving operational safety.

[0024] The foregoing describes the working principle, features, and beneficial effects of this utility model. Those skilled in the art will understand from the foregoing that it does not limit the utility model. The embodiments and description above illustrate the basic principles and features of this utility model. Various changes and improvements can be made to this utility model while remaining consistent with its concept, and all such improvements should fall within the scope of protection claimed by this utility model.

Claims

1. An automatic continuous chain elevator, characterized in that: It includes a material rack (1) and a lifting rack (2). The lifting rack (2) is provided with a lifting chain (3) and a lifting hook (6). The material rack (1) is provided with a first limit switch (4) and a second limit switch (5). The lower ends of the material rack (1) and the lifting rack (2) are provided with support legs (12).

2. The automatic continuous chain elevator according to claim 1, characterized in that: The lifting frame (2) is provided with a rotating wheel, and the rotating wheel is provided with a rotating shaft (7), and a coupling (8) is provided between the rotating shafts (7).

3. An automatic continuous chain elevator according to claim 2, characterized in that: The lifting frame (2) is fixed with a motor (10), and the output shaft of the motor (10) is provided with a drive wheel. The rotating shaft (7) is provided with a sprocket (9), and the sprocket (9) and the drive wheel are provided with a transmission chain (11).

4. An automatic continuous chain elevator according to claim 3, characterized in that: The first limit switch (4) includes a mounting base (401), a first cylinder (402), a feeding rack (403), a telescopic rod (404), and a first control valve (405). The mounting base (401) is fixed on the material rack (1). The first cylinder (402) is mounted on the mounting base (401). The feeding rack (403) is rotatably mounted on the material rack (1). The telescopic rod (404) is mounted on the first cylinder (402), and the end of the telescopic rod (404) is rotatably connected to the feeding rack (403). The first control valve (405) is mounted on the mounting base (401).

5. An automatic continuous chain elevator according to claim 4, characterized in that: The second limit switch (5) includes a limit block (501), an inclined block (502), a fixed seat (503), a second cylinder (504), a top block (505), and a second control valve (506). The limit block (501) and the inclined block (502) are fixed on the material rack (1). The fixed seat (503) is located on the inner side of the material rack (1). The second cylinder (504) is fixed on the fixed seat (503), and the telescopic shaft of the second cylinder (504) is connected to the top block (505). The second control valve (506) is fixed on the fixed seat (503).

6. An automatic continuous chain elevator according to claim 5, characterized in that: The support leg (12) consists of a fixed plate, an adjusting screw, a base plate and a guide rod. The base plate and the guide rod are fixedly connected, and the guide rod passes through the fixed plate. The adjusting screw is set on the fixed plate, and the lower end of the adjusting screw abuts against the base plate.

Images