Lifting device for plastic-coated steel pipe production

Abstract

The utility model discloses a plastic-coated steel pipe production lifting device which comprises a lifting base and a supporting plate, limiting supports are arranged on the inner walls of two limiting sliding grooves in a sliding mode, clamping shafts are fixedly arranged on one sides of the two limiting supports, a double-thread lead screw is rotationally arranged on the inner wall of the supporting plate, a first gear is fixedly arranged in the middle of the outer wall of the double-thread lead screw, and a second gear is fixedly arranged in the middle of the outer wall of the double-thread lead screw. A rotating shaft penetrates through one side of the inner wall of the supporting plate, and a second gear is fixedly arranged at one end of the rotating shaft. According to the steel pipe hoisting device, the supporting plate is lowered, a steel pipe needing to be hoisted is placed between the two limiting supports, the first motor is started to drive the rotating shaft to rotate the second gear, the second gear is meshed with the first gear to enable the double-thread lead screw to rotate, and the two limiting supports are driven to slide and approach in the limiting sliding grooves; therefore, the clamping shaft at the upper end of the steel pipe is clamped into the inner wall of the steel pipe and extrudes the two ends of the steel pipe, the steel pipe can be rapidly fixed, a lifting rope does not need to be bound, during lifting, the steel pipe is not prone to falling off through limiting of the limiting shaft, efficiency is improved, and meanwhile potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of the production of plastic - coated steel pipes, in particular to a lifting device for the production of plastic - coated steel pipes. Background Technique

[0002] The plastic - coated steel pipe, also known as the plastic - coated pipe, the steel - plastic composite pipe, and the plastic - coated composite steel pipe, is a steel - plastic composite steel pipe with a steel pipe as the base body, and a plastic anti - corrosion layer is welded on the inner surface of the steel pipe (bottom pipe) or on the inner and outer surfaces through spraying, rolling, dipping, and suction processes. The plastic - coated steel pipe has excellent corrosion resistance and relatively small frictional resistance. When producing and processing plastic - coated steel pipes, when moving the steel pipe or loading it onto a vehicle, due to its large own weight, manual handling is time - consuming and laborious. Generally, special lifting equipment is required to lift it. With the development of technology, the functions of such lifting devices have also increased, making them more convenient to use.

[0003] In the prior art, when using a hoist for lifting plastic - coated steel pipes, during the process of fixing the steel pipe, it is necessary to bind lifting ropes at both ends of the steel pipe, and then fix the lifting part of the hoist to the lifting rope at the upper end of the steel pipe, and then lift it. This fixing method requires workers to spend energy binding the lifting ropes. At the same time, in the case of a long lifting distance, due to the large self - gravity of the steel pipe, it is easy to fall off, causing harm, reducing the handling efficiency and increasing potential safety hazards. Content of the Utility Model

[0004] In order to solve the above problems, the purpose of the utility model is to provide a lifting device for the production of plastic - coated steel pipes to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides a lifting device for the production of plastic - coated steel pipes, including a lifting base and a support plate, and a lifting support mechanism for quick fixation is arranged at the upper end of the lifting base;

[0006] The lifting support mechanism for quick fixation includes limit sliding grooves opened on both sides of the bottom of the support plate. The inner walls of the two limit sliding grooves are both slidably provided with limit brackets. One side of each of the two limit brackets is fixedly provided with a clamping shaft. A double - threaded lead screw is rotatably arranged inside the support plate, and the outer walls of both ends of the double - threaded lead screw respectively pass through the inner walls of the two limit sliding grooves and are threadedly connected to the inner walls of one side of the two limit brackets. A first gear is fixedly arranged at the middle position of the outer wall of the double - threaded lead screw. A rotating shaft is inserted through one side of the inner wall of the support plate, and a second gear is fixedly arranged at one end of the rotating shaft, and the outer wall of the first gear is meshed with the outer wall of the second gear.

[0007] In one example, a first motor is fixedly provided on one side of the outer wall of the support plate, and the other end of the rotating shaft is fixedly connected to the output end of the first motor. Rubber pads are fixedly provided at the edges of one side of the two limiting brackets.

[0008] In one example, a support frame is rotatably provided at the middle position of the top end of the lifting base. One end of the support frame is fixedly provided with a hydraulic rod, and one end of the hydraulic rod is fixedly provided with an extension bar.

[0009] In one example, two guide wheels are provided at the upper end of the extension bar. A winding wheel is rotatably provided on one side of the top end of the support frame. A steel cable is wound around the outer wall of the winding wheel, and one end of the steel cable is fixedly connected to one side of the support plate.

[0010] In one example, a toothed ring is sleeved on the lower end of the outer wall of the support frame. A third gear is rotatably provided on one side of the inner wall of the lifting base, and the outer wall of the third gear meshes with the outer wall of the toothed ring.

[0011] In one example, a second motor is fixedly provided on one side of the top end of the support frame, and one end of the winding wheel is fixedly connected to the output end of the second motor. A third motor is fixedly provided on one side of the top end of the lifting base, and one end of the third gear passes through the inner wall of the lifting base and is fixedly connected to the output end of the third motor.

[0012] In one example, a switch panel is fixedly provided on one side of the lifting base, and the first motor, the second motor, and the third motor are all electrically connected to an external power source through the switch panel.

[0013] The hoisting device for the production of coated steel pipes proposed by the present utility model can bring the following beneficial effects:

[0014] 1. For the hoisting device for the production of coated steel pipes, lower the support plate, place the steel pipe to be hoisted between the two limiting brackets, start the first motor to drive the rotating shaft to rotate the second gear, and its meshing with the first gear causes the double-threaded lead screw to rotate, driving the two limiting brackets to slide closer in the limiting chute, so that the clamping shafts at their upper ends are clamped into the inner wall of the steel pipe and squeeze its two ends, realizing quick fixation of the steel pipe without binding a lifting rope. When hoisting, it is not easy to fall off due to the limitation of the limiting shaft, improving the efficiency and reducing potential safety hazards at the same time.

[0015] 2. For the hoisting device for the production of coated steel pipes, after hoisting the steel pipe, start the third motor to make the third gear mesh with the toothed ring and then rotate the support frame to change the position of the hoisted movement, and start the hydraulic rod to move the steel pipe to move it to the loading vehicle or the designated placement area, without manual control, improving the convenience of using the device. Description of the Drawings

[0016] The accompanying drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the bottom of the support plate of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the connection point between the first gear and the second gear of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the whole of the support frame of the present utility model.

[0021] In the figure: 1, lifting base; 2, support plate; 3, limit sliding groove; 4, limit bracket; 5, clamping shaft; 6, double-threaded screw rod; 7, first gear; 8, rotating shaft; 9, second gear; 10, first motor; 11, rubber pad; 12, support frame; 13, hydraulic rod; 14, guide wheel; 15, winding wheel; 16, steel cable; 17, tooth ring; 18, third gear; 19, second motor; 20, third motor. Specific embodiments

[0022] In order to more clearly illustrate the overall concept of the present utility model, the following will be described in detail by way of examples in conjunction with the drawings in the specification.

[0023] The embodiments are as follows:

[0024] The present utility model provides a Figures 1-4 shown lifting device for the production of plastic-coated steel pipes, including a lifting base 1 and a support plate 2, and a lifting support mechanism for quick fixation is arranged at the upper end of the lifting base 1;

[0025] The quick-fixed lifting support mechanism includes a limiting slide groove 3 opened on both sides of the bottom of the support plate 2, the inner walls of the two limiting slide grooves 3 are slidably provided with a limiting bracket 4, and one side of the two limiting brackets 4 is fixedly provided with a clamping shaft 5, the inner wall of the support plate 2 is rotatably provided with a double-threaded screw rod 6, and the outer walls at both ends of the double-threaded screw rod 6 respectively pass through the inner walls of the two limiting slide grooves 3 and are threadedly connected with the inner walls of one side of the two limiting brackets 4, a first gear 7 is fixedly provided at the middle position of the outer wall of the double-threaded screw rod 6, a rotating shaft 8 is inserted through one side of the inner wall of the support plate 2, and a second gear 9 is fixedly provided at one end of the rotating shaft 8, and the outer wall of the first gear 7 is meshed with the outer wall of the second gear 9, the two limiting slide grooves 3 limit the two limiting brackets 4, so that the limiting bracket 4 is not easy to fall off when sliding to adjust the distance therein, and the distance between the limiting brackets 4 is adjusted by sliding in the limiting slide groove 3 so that the device can be fixed and hung when lifting steel pipes of different lengths.

[0026] A first motor 10 is fixedly provided on one side of the outer wall of the support plate 2, and the other end of the rotating shaft 8 is fixedly connected to the output end of the first motor 10. Rubber pads 11 are fixedly provided on the edges of one side of the two limit brackets 4. The rubber pads 11 are arranged on one side of the two limit brackets 4 so that the rubber pads 11 are directly in contact with the steel pipe while squeezing and fixing the steel pipe at both ends, thereby protecting the steel pipe from wear.

[0027] Furthermore, a support frame 12 is rotatably provided at the middle position of the top of the lifting base 1, a hydraulic rod 13 is fixedly provided at one end of the support frame 12, and an extension bar is fixedly provided at one end of the hydraulic rod 13.

[0028] Two guide wheels 14 are provided at the upper end of the extension bar, and a winding wheel 15 is rotatably provided on one side of the top of the support frame 12. A steel cable 16 is wound around the outer wall of the winding wheel 15, and one end of the steel cable 16 is fixedly connected to one side of the support plate 2. The two guide wheels 14 are respectively installed at the top of the extension bar and inside the groove area. The groove area is provided with a baffle. When the steel cable 16 is pulled by the guide wheel 14, the steel cable 16 cannot be separated from the groove area to prevent the lifting from deflecting.

[0029] Furthermore, a gear ring 17 is sleeved on the lower end of the outer wall of the support frame 12 , and a third gear 18 is rotatably provided on one side of the inner wall of the lifting base 1 , and the outer wall of the third gear 18 is meshed with the outer wall of the gear ring 17 .

[0030] On one side of the top end of the support frame 12, a second motor 19 is fixedly provided, and one end of the winding wheel 15 is fixedly connected to the output end of the second motor 19. On one side of the top end of the lifting base 1, a third motor 20 is fixedly provided, and one end of the third gear 18 passes through the inner wall of the lifting base 1 and is fixedly connected to the output end of the third motor 20. The third gear 18 meshes with the toothed ring 17 inside the lifting base 1. By rotating the toothed ring 17 through the meshing of the third gear 18, the upper support frame 12 can be rotated, so that the direction can be adjusted when lifting the steel pipe, which is convenient for loading and handling.

[0031] Working principle: When using the lifting device for the production of coated steel pipes in this design scheme, first, the steel cable 16 needs to be wound around the outer wall of the winding wheel 15. Start the second motor 19 to rotate the winding wheel 15 to wind and release the steel cable 16. The steel cable 16 is guided and pulled by the guide wheel 14 in the inner wall of one end of the extension bar. It is stuck inside the extension bar so that it is not easy to break away, preventing the position from shifting during lifting. When lifting the coated steel pipe, lower the support plate 2, place the steel pipe to be lifted between the two limiting brackets 4, start the first motor 10 to drive the rotating shaft 8 to rotate the second gear 9, which meshes with the first gear 7 to make the double-threaded lead screw 6 rotate, driving the two limiting brackets 4 to slide closer in the limiting chute 3, and then making the clamping shafts 5 at their upper ends snap into the inner wall of the steel pipe and squeeze both ends of it, realizing the quick fixation of the steel pipe without binding a lifting rope. When lifting, it is not easy to fall off due to the limitation of the clamping shaft 5, improving the efficiency and reducing the potential safety hazard. After lifting the steel pipe, start the third motor 20 to make the third gear 18 mesh with the toothed ring 17, and then rotate the support frame 12 to change the position of the lifted and moved steel pipe, and start the hydraulic rod 13 to move the steel pipe to the loading vehicle or the designated placement area, without manual control, improving the convenience of using the device.

[0032] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment.

[0033] The above are only the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A lifting device for plastic coated steel pipe production, comprising a lifting base (1) and a support plate (2), characterized in that: The upper end of the lifting base (1) is provided with a quick-fix lifting support mechanism; The quick-fix lifting support mechanism comprises limiting slide grooves (3) provided on both sides of the bottom of the support plate (2), the inner walls of the two limiting slide grooves (3) are slidably provided with limiting brackets (4), one side of the two limiting brackets (4) is fixed with a clamping shaft (5), the inner wall of the support plate (2) is rotatably provided with a double-threaded screw rod (6), and the outer walls at both ends of the double-threaded screw rod (6) respectively pass through the inner walls of the two limiting slide grooves (3) and are threadedly connected with the inner walls of one side of the two limiting brackets (4), a first gear (7) is fixedly provided at the middle position of the outer wall of the double-threaded screw rod (6), a rotating shaft (8) is inserted through one side of the inner wall of the support plate (2), and a second gear (9) is fixedly provided at one end of the rotating shaft (8), and the outer wall of the first gear (7) is meshed with the outer wall of the second gear (9).

2. A lifting device for plastic coated steel pipe production according to claim 1, characterized in that: A first motor (10) is fixedly provided on one side of the outer wall of the support plate (2), and the other end of the rotating shaft (8) is fixedly connected to the output end of the first motor (10), and a rubber pad (11) is fixedly provided on the edge of one side of the two limit brackets (4).

3. The lifting device for plastic coated steel pipe production according to claim 1 is characterized in that: A support frame (12) is rotatably provided at the middle position of the top of the lifting base (1), a hydraulic rod (13) is fixedly provided at one end of the support frame (12), and an extension bar is fixedly provided at one end of the hydraulic rod (13).

4. A lifting device for plastic coated steel pipe production according to claim 3, characterized in that: Two guide wheels (14) are arranged at the upper end of the extension strip, and a winding wheel (15) is rotatably arranged on one side of the top end of the support frame (12). A steel cable (16) is wound around the outer wall of the winding wheel (15), and one end of the steel cable (16) is fixedly connected to one side of the support plate (2).

5. The lifting device for plastic coated steel pipe production according to claim 3 is characterized by: A gear ring (17) is sleeved on the lower end of the outer wall of the support frame (12), and a third gear (18) is rotatably provided on one side of the inner wall of the lifting base (1), and the outer wall of the third gear (18) is meshed with the outer wall of the gear ring (17).

6. A lifting device for plastic coated steel pipe production according to claim 4, characterized in that: A second motor (19) is fixedly provided on one side of the top of the support frame (12), and one end of the winding wheel (15) is fixedly connected to the output end of the second motor (19); a third motor (20) is fixedly provided on one side of the top of the lifting base (1), and one end of the third gear (18) passes through the inner wall of the lifting base (1) and is fixedly connected to the output end of the third motor (20).

7. A lifting device for plastic coated steel pipe production according to claim 6, characterized in that: A switch panel is fixedly provided on one side of the lifting base (1), and the first motor (10), the second motor (19) and the third motor (20) are all electrically connected to an external power supply via the switch panel.

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