A hoisting device for plastic coating of steel pipes

Abstract

The utility model discloses a kind of hoisting devices for steel pipe plastic coating, it is related to steel pipe processing equipment technical field, including hoisting frame, the lower end of hoisting frame is connected with annular protective shell, annular protective shell one side is connected with motor, motor one end is connected with clamping assembly;The clamping assembly includes the drive gear connected with the motor output end, the drive gear outside is provided with ring gear, the ring gear outside is provided with rotating gear, the rotating gear outside is provided with rack, the rack one side is connected with mobile clamping block;The utility model adopts annular protective shell, motor and clamping assembly, under the action of multiple movable mobile clamping block, the application range of device is improved, secondly, steel pipe can be clamped from multiple directions, compared with traditional hoisting device, the clamping stability of steel pipe is improved, effectively avoid the situation that steel pipe shakes, falls in hoisting process.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe processing equipment, and in particular to a hoisting device for coating steel pipes with plastic. Background Technology

[0002] Steel pipe is a long strip of steel with a hollow cross-section and no seams around its perimeter. During the processing of steel pipe, plastic coating can improve the corrosion resistance, wear resistance, hygiene and insulation of steel pipe, and it is widely used in water supply and drainage, fire protection, chemical industry and other fields.

[0003] In the process of coating steel pipes with plastic, the hoisting of the steel pipes is an indispensable and important step. Due to the variety of specifications of steel pipes, traditional steel pipe hoisting clamping components are mostly fixed and cannot adapt to the hoisting of steel pipes of different specifications. In order to accommodate the hoisting of steel pipes of different specifications, some hoisting devices often use wire rope binding or simple clamps. However, wire rope binding can easily damage the surface of the steel pipe and affect the coating quality, while simple clamps have poor clamping stability, and the steel pipe is prone to falling off due to gravity during hoisting, which poses a safety hazard.

[0004] Therefore, we provide a hoisting device for plastic coating of steel pipes. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a hoisting device for plastic coating of steel pipes, which can adapt to the hoisting of steel pipes of different specifications and protect the steel pipes.

[0006] In view of this, the present invention provides a hoisting device for plastic coating of steel pipes, including a hoisting frame, an annular protective shell connected to the lower end of the hoisting frame, a motor connected to one side of the annular protective shell, and a clamping assembly connected to one end of the motor;

[0007] The clamping assembly includes a drive gear connected to the output end of the motor, a surrounding gear on the outside of the drive gear, a rotating gear on the outside of the surrounding gear, a rack on the outside of the rotating gear, a movable clamping block connected to one side of the rack, an arc-shaped clamping head connected to one end of the movable clamping block, and a rotating roller inside the arc-shaped clamping head.

[0008] Preferably, at least two annular protective shells are connected to the lower end of the hoisting frame. The annular protective shells have a hollow interior design. The motor is fixedly connected to one side surface of the annular protective shell, and the output end of the motor is inserted into the interior of the annular protective shell.

[0009] Preferably, the clamping assembly includes a drive gear fixedly connected to the output end of the motor, the drive gear rotating inside the annular protective shell, and the side of the drive gear away from the output end of the motor being rotatably connected to the inner wall of the annular protective shell, the drive gear meshing with the surrounding gear, and the surrounding gear being rotatably connected to the arcuate inner wall surface at the inner end of the annular protective shell.

[0010] Preferably, the annular gear is meshed with a plurality of rotating gears, which are equidistantly distributed in a circle. The two ends of the rotating gears are rotatably connected to the inner walls of the two ends of the annular protective shell. The rotating gears are meshed with the rack, and there is a gap between the rack and the annular gear.

[0011] Preferably, the movable clamping block is fixedly connected to one side surface of the rack, and a plurality of insertion slots are evenly provided through the arc-shaped inner wall of the inner end of the annular protective shell. The rack and the movable clamping block are simultaneously inserted into the insertion slots, and the outer ends of the rack and the movable clamping block extend out of the inner side surface of the annular protective shell. The arc-shaped clamping head is fixedly connected to the outer end of the movable clamping block, and the rotating roller is rotatably connected inside the arc-shaped clamping head. Part of the surface of the rotating roller extends out of the outer surface of the arc-shaped end of the annular protective shell.

[0012] Preferably, the inner walls of the insertion slot on both sides are provided with limiting grooves, and a supporting limiting block is inserted into the limiting groove. The two supporting limiting blocks are fixedly connected to the outer surface of the movable clamping block. A limiting post is inserted into the inner end of the movable clamping block. The limiting post moves inside the movable clamping block. The outer end of the limiting post is fixedly connected to the arc-shaped inner wall of the outer end of the annular protective shell. A limiting block is installed on the outer surface of the inner end of the movable clamping block. A supporting limiting groove is provided on the inner wall of the movable clamping block. The limiting block slides inside the supporting limiting groove.

[0013] Preferably, an arc-shaped groove is formed on the arc-shaped inner wall surface at the inner end of the annular protective shell, and a plurality of arc-shaped sliders are uniformly slidably arranged inside the arc-shaped groove. The arc-shaped sliders are fixedly connected to the inner side surface of the surrounding gear.

[0014] Compared with the prior art, this utility model provides a hoisting device for coating steel pipes with plastic, which has the following advantages:

[0015] 1. This utility model adopts a ring-shaped protective shell, a motor, and a clamping assembly. Under the action of multiple movable clamping blocks, it can first clamp and lift steel pipes of different specifications and sizes, thus improving the application range of the device.

[0016] 2. Secondly, this utility model can clamp the steel pipe from multiple directions, which greatly improves the clamping stability of the steel pipe compared with traditional hoisting devices and effectively avoids the steel pipe shaking or falling during hoisting.

[0017] 3. In addition, the annular protective shell can also provide support for the steel pipe, preventing the clamping force of the clamping components from loosening and causing the steel pipe to fall directly to the ground, thus further ensuring safety during the hoisting process.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a hoisting device for plastic coating of steel pipes proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the clamping assembly structure of a hoisting device for plastic coating of steel pipes proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping block connection structure of a hoisting device for plastic coating of steel pipes proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the ring gear connection structure of a hoisting device for plastic coating of steel pipes proposed in this utility model.

[0023] In the diagram: 1. Lifting frame; 2. Annular protective shell; 201. Insertion slot; 202. Limiting slot; 203. Arc-shaped slide groove; 3. Motor; 4. Clamping assembly; 401. Drive gear; 402. Circular gear; 403. Rotating gear; 404. Rack; 405. Moving clamping block; 406. Arc-shaped clamping head; 407. Rotating roller; 408. Limiting post; 409. Limiting block; 410. Support limiting slot; 411. Arc-shaped slider. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example: A hoisting device for plastic coating of steel pipes, such as... Figures 1-4 As shown, it includes a hoisting frame 1, with an annular protective shell 2 connected to the lower end of the hoisting frame 1, a motor 3 connected to one side of the annular protective shell 2, and a clamping assembly 4 connected to one end of the motor 3.

[0027] The clamping assembly 4 includes a drive gear 401 connected to the output end of the motor 3. A surrounding gear 402 is provided on the outside of the drive gear 401. A rotating gear 403 is provided on the outside of the surrounding gear 402. A rack 404 is provided on the outside of the rotating gear 403. A movable clamping block 405 is connected to one side of the rack 404. An arc-shaped clamping head 406 is connected to one end of the movable clamping block 405. A rotating roller 407 is provided inside the arc-shaped clamping head 406.

[0028] At least two annular protective shells 2 are connected to the lower end of the hoisting frame 1. The interior of the annular protective shell 2 is hollow. A motor 3 is fixedly connected to one side surface of the annular protective shell 2. The output end of the motor 3 is inserted into the interior of the annular protective shell 2.

[0029] The clamping assembly 4 includes a drive gear 401 fixedly connected to the output end of the motor 3. The drive gear 401 rotates inside the annular protective shell 2, and the side of the drive gear 401 away from the output end of the motor 3 is rotatably connected to the inner wall of the annular protective shell 2. The drive gear 401 meshes with the surrounding gear 402, and the surrounding gear 402 is rotatably connected to the arc-shaped inner wall surface at the inner end of the annular protective shell 2.

[0030] The annular gear 402 is meshed with several rotating gears 403, which are equidistantly distributed in a circle. The two ends of the rotating gears 403 are rotatably connected to the inner walls of the two ends of the annular protective shell 2. The rotating gears 403 are meshed with racks 404, and there is a gap between the racks 404 and the annular gear 402.

[0031] A movable clamping block 405 is fixedly connected to one side surface of the rack 404. Several insertion slots 201 are evenly opened through the arc-shaped inner wall of the inner end of the annular protective shell 2. The rack 404 and the movable clamping block 405 are simultaneously inserted into the insertion slots 201. The outer ends of the rack 404 and the movable clamping block 405 extend out of the inner side surface of the annular protective shell 2. An arc-shaped clamping head 406 is fixedly connected to the outer end of the movable clamping block 405. A rotating roller 407 is rotatably connected inside the arc-shaped clamping head 406. Part of the surface of the rotating roller 407 extends out of the outer surface of the arc-shaped end of the annular protective shell 2.

[0032] When the steel pipe is not being lifted and coated, the inner surface of the arc-shaped clamping head 406 is in contact with the inner side of the annular protective shell 2. When the steel pipe needs to be lifted, the two annular protective shells 2 are moved to the two ends of the steel pipe respectively, the holes in the center of the annular protective shells 2 are aligned with the two ends of the steel pipe and inserted, and then the motor 3 is started, driving the drive gear 401 to rotate. Based on the meshing connection between the drive gear 401 and the surrounding gear 402, the surrounding gear 402 is driven to rotate in a circle. Based on the meshing of several rotating gears 403 with the surrounding gear 402, the surrounding gear 402 drives several rotating gears 403. 03 Simultaneous rotation, based on the rotating gear 403 meshing with the rack 404, during the rotation of the rotating gear 403, it will drive the rack 404 and the moving clamping block 405 to retract inward simultaneously. When several moving clamping blocks 405 retract inward simultaneously, when the rotating rollers 407 on all the arc-shaped clamping heads 406 are in contact with the outer surface of the steel pipe, the steel pipe is clamped. Through the drive mechanism on the hoisting frame 1, the annular protective shell 2 and the steel pipe are driven to rise to a suitable position for powder coating. Since the rotating rollers 407 are in a rotating state, the steel pipe can be rotated for powder coating during the powder coating process.

[0033] The device employs an annular protective shell 2, a motor 3, and a clamping assembly 4. With the assistance of multiple movable clamping blocks 405, it can firstly clamp and lift steel pipes of different sizes, thus expanding its applicability. Secondly, it can clamp the steel pipes from multiple directions, significantly improving the clamping stability compared to traditional lifting devices and effectively preventing the steel pipes from swaying or falling during lifting. Furthermore, the annular protective shell 2 provides additional support for the steel pipes, preventing the clamping force of the clamping assembly 4 from loosening and causing the steel pipes to fall directly to the ground, further ensuring safety during lifting.

[0034] like Figures 1-4As shown, the insertion groove 201 has limit grooves 202 on both sides of its inner wall. A support limit block is inserted into the limit groove 202. The two support limit blocks are fixedly connected to the outer surface of the movable clamping block 405. A limit post 408 is inserted into the inner end of the movable clamping block 405. The limit post 408 moves inside the movable clamping block 405. The outer end of the limit post 408 is fixedly connected to the arc-shaped inner wall of the outer end of the annular protective shell 2. A limit block 409 is installed on the outer surface of the inner end of the movable clamping block 405. A support limit groove 410 is opened on the inner wall of the movable clamping block 405. The limit block 409 slides inside the support limit groove 410.

[0035] When the movable clamping block 405 moves inward and outward, the support limiting block moves simultaneously with the movable clamping block 405. During the movement of the movable clamping block 405, the contact position between the limiting post 408 and the support limiting groove 410 changes simultaneously. Under the combined limiting of the support limiting block, the limiting groove 202, the limiting post 408, the limiting block 409, and the support limiting groove 410, the angle of the movable clamping block 405 is limited, so that the movable clamping block 405 remains in a horizontal state during the movement, avoiding the problem of the movable clamping block 405 shaking during the clamping process, and further ensuring the stability of the movable clamping block 405 during operation.

[0036] like Figures 1-4 As shown, an arc-shaped groove 203 is provided on the arc-shaped inner wall surface of the inner end of the annular protective shell 2. Several arc-shaped sliders 411 are uniformly slidably arranged inside the arc-shaped groove 203. The arc-shaped sliders 411 are fixedly connected to the inner side surface of the surrounding gear 402.

[0037] When the annular gear 402 rotates in a circle under the drive of the drive gear 401, the annular gear 402 will drive the arc-shaped slider 411 to move simultaneously inside the arc-shaped slide groove 203. With the support and limitation of the arc-shaped slider 411 and the arc-shaped slide groove 203, the angle deviation problem during the rotation of the annular gear 402 is avoided, so that the annular gear 402 always stays in a certain fixed position and rotates in a circle, ensuring the stability of the annular gear 402 during operation.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hoisting device for plastic coating of steel pipes, characterized in that, It includes a hoisting frame (1), the lower end of which is connected to an annular protective shell (2), one side of which is connected to a motor (3), and one end of which is connected to a clamping assembly (4); The clamping assembly (4) includes a drive gear (401) connected to the output end of the motor (3). A surrounding gear (402) is provided on the outside of the drive gear (401). A rotating gear (403) is provided on the outside of the surrounding gear (402). A rack (404) is provided on the outside of the rotating gear (403). A movable clamping block (405) is connected to one side of the rack (404). An arc-shaped clamping head (406) is connected to one end of the movable clamping block (405). A rotating roller (407) is provided inside the arc-shaped clamping head (406).

2. The hoisting device for plastic coating of steel pipes according to claim 1, characterized in that, The lower end of the hoisting frame (1) is connected to at least two of the annular protective shells (2). The annular protective shells (2) are hollow inside. The motor (3) is fixedly connected to one side surface of the annular protective shells (2). The output end of the motor (3) is inserted into the annular protective shells (2).

3. The hoisting device for plastic coating of steel pipes according to claim 1, characterized in that, The clamping assembly (4) includes a drive gear (401) fixedly connected to the output end of the motor (3). The drive gear (401) rotates inside the annular protective shell (2), and the side of the drive gear (401) away from the output end of the motor (3) is rotatably connected to the inner wall of the annular protective shell (2). The drive gear (401) meshes with the surrounding gear (402), and the surrounding gear (402) is rotatably connected to the arc-shaped inner wall surface at the inner end of the annular protective shell (2).

4. A hoisting device for plastic coating of steel pipes according to claim 3, characterized in that, The annular gear (402) is meshed with a plurality of rotating gears (403), which are equidistantly distributed in a circle. The two ends of the rotating gears (403) are rotatably connected to the inner walls of the two ends of the annular protective shell (2). The rotating gears (403) are meshed with the rack (404), and there is a gap between the rack (404) and the annular gear (402).

5. A hoisting device for plastic coating of steel pipes according to claim 4, characterized in that, The movable clamping block (405) is fixedly connected to one side surface of the rack (404). A plurality of insertion slots (201) are uniformly opened through the arc-shaped inner wall of the inner end of the annular protective shell (2). The rack (404) and the movable clamping block (405) are simultaneously inserted into the insertion slots (201). The outer ends of the rack (404) and the movable clamping block (405) extend out of the inner side surface of the annular protective shell (2). The arc-shaped clamping head (406) is fixedly connected to the outer end of the movable clamping block (405). The rotating roller (407) is rotatably connected inside the arc-shaped clamping head (406). Part of the surface of the rotating roller (407) extends out of the outer surface of the arc-shaped end of the annular protective shell (2).

6. A hoisting device for plastic coating of steel pipes according to claim 5, characterized in that, The insertion slot (201) has limit slots (202) on both sides of its inner wall. A support limit block is inserted into the limit slot (202). The two support limit blocks are fixedly connected to the outer surface of the movable clamping block (405). A limit post (408) is inserted into the inner end of the movable clamping block (405). The limit post (408) moves inside the movable clamping block (405). The outer end of the limit post (408) is fixedly connected to the arc-shaped inner wall of the outer end of the annular protective shell (2). A limit block (409) is installed on the outer surface of the inner end of the movable clamping block (405). A support limit slot (410) is opened on the inner wall of the movable clamping block (405). The limit block (409) slides inside the support limit slot (410).

7. A hoisting device for plastic coating of steel pipes according to claim 1, characterized in that, An arc-shaped groove (203) is provided on the inner wall surface of the inner end of the annular protective shell (2). Several arc-shaped sliders (411) are uniformly slidably arranged inside the arc-shaped groove (203). The arc-shaped sliders (411) are fixedly connected to the inner side surface of the surrounding gear (402).

Images