Stable-operation hoisting device for boiler installation

Abstract

The utility model relates to the technical field of boiler installation, and discloses a stable-operation hoisting device for boiler installation, which comprises U-shaped frames, hydraulic lifting rods are arranged in the front end and the rear end of the U-shaped frames on the left side and the right side, and the top end of the hydraulic lifting rod on the left side is fixedly connected with a first telescopic arm. A second telescopic arm is fixedly connected to the top end of the hydraulic lifting rod on the right side, the left end of the second telescopic arm is movably connected into the right end of a first telescopic arm, and first screws are rotationally connected into the front side and the rear side of the first telescopic arm correspondingly. According to the boiler hoisting device, up-down and left-right telescoping of the boiler hoisting device is achieved through the hydraulic lifting rod, the telescopic arm, the screw rod, the bevel teeth and other wheels, the overall size of the device is reduced, storage and transportation are convenient, a boiler is fixed through the liftable clamping plates, the shaking amplitude of the boiler in the lifting or transferring process is reduced, and the boiler hoisting device is convenient to use. And the stability and the safety of hoisting and mounting of the boiler are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler installation, in particular to a boiler installation hoisting device with stable operation. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy in the fuel, electrical energy, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. Boilers are generally large box-type or tank-type structures. When installing, a lifting device is required to lift the entire boiler.

[0003] At present, in actual use of boiler installation lifting devices, the lifting work of the boiler is extremely difficult to transport due to its large size, and the boiler may sway or even fall off during the lifting process, which poses a hidden danger to the safety of users during the lifting work and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a stable-operation lifting device for boiler installation. The extension and retraction of the lifting device are achieved through the provision of a hydraulic lifting rod, a first telescopic arm, a second telescopic arm, etc., thereby reducing the size of the device and facilitating the transportation of the lifting device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A boiler installation lifting device with stable operation comprises a U-shaped frame, and hydraulic lifting rods are arranged inside the front and rear ends of the U-shaped frame on the left and right sides, the top end of the hydraulic lifting rod on the left side is fixedly connected to the first telescopic arm, and the top end of the hydraulic lifting rod on the right side is fixedly connected to the second telescopic arm, the left end of the second telescopic arm is movably connected to the right end of the first telescopic arm, the front and rear sides of the first telescopic arm are rotatably connected to the first screw, the right end of the first screw is threadedly connected to the left end of the second telescopic arm, the left end of the first screw is fixedly connected to the first bevel gear, the left side of the first telescopic arm is rotatably connected to the rotating rod, the left and right sides of the rotating rod are fixedly connected to the second bevel gear, the outer wall of the second bevel gear is meshedly connected to the outer wall of the first bevel gear, and the front end left side of the first telescopic arm is fixedly connected to the first motor, and the front end of the rotating rod passes through the front end of the first telescopic arm and is fixedly connected to the driving shaft of the first motor.

[0007] Furthermore, the right ends of both front and rear sides of the upper surface of the first telescopic arm are fixedly connected with fixed blocks, the middle part of the fixed block is rotatably connected with a rotating shaft, the front and rear sides of the rotating shaft are fixedly connected with a winding wheel, and a hook is provided at the bottom end of the suspension rope inside the winding wheel.

[0008] Furthermore, a support plate is fixedly connected to the right side of the rear end of the first telescopic arm, a second motor is fixedly connected to the upper end of the support plate, and the rear end of the rotating shaft passes through the fixed block and is fixedly connected to the front end of the driving shaft of the second motor.

[0009] Furthermore, a fixing plate is fixedly connected to the inner middle part of the U-shaped frame, and fixing rods are fixedly connected to the front and rear ends of the upper surface of the fixing plate, and the top ends of the fixing rods respectively pass through the left end of the first telescopic arm and the right end of the second telescopic arm.

[0010] Furthermore, the outer walls of the fixing rods on the same side are movably connected with a lifting plate, the front and rear sides of the lifting plate are movably connected with limit rods, and the opposite ends of the limit rods are fixedly connected with clamping plates.

[0011] Furthermore, a second screw rod is threadedly connected to the middle portion of the lifting plate, and opposite ends of the second screw rod are respectively fixedly connected to opposite ends of the clamping plate.

[0012] Furthermore, the inner bottom end of the U-shaped frame is fixedly connected to an electric push rod, and the output end of the electric push rod passes through the bottom end of the U-shaped frame and is fixedly connected to a bottom plate.

[0013] Furthermore, movable wheels are provided on both the front and rear sides of the bottom end of the U-shaped frame.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the boiler lifting device can be extended up and down, left and right by means of the hydraulic lifting rod, the first telescopic arm, the second telescopic arm, the first screw rod, the first and second bevel gears, etc., thereby reducing the overall volume of the device and facilitating storage and transportation.

[0016] 2. In the utility model, the boiler is fixed by means of a liftable clamping plate, which reduces the shaking amplitude of the boiler during lifting or transportation, and improves the stability and safety of the boiler lifting installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a boiler installation lifting device with stable operation proposed by the utility model;

[0018] Figure 2 A schematic diagram of a winding wheel of a boiler installation lifting device with stable operation proposed by the utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of a first telescopic arm of a boiler installation lifting device with stable operation proposed by the utility model;

[0020] Figure 4The utility model is a schematic diagram of a clamping plate of a boiler installation lifting device with stable operation.

[0021] Legend:

[0022] 1. U-shaped frame; 2. Hydraulic lifting rod; 3. First telescopic arm; 4. Second telescopic arm; 5. First screw; 6. First bevel gear; 7. First motor; 8. Rotating rod; 9. Second bevel gear; 10. Support plate; 11. Second motor; 12. Fixed block; 13. Rotating shaft; 14. Winding wheel; 15. Hook; 16. Fixed plate; 17. Fixed rod; 18. Lifting plate; 19. Limit rod; 20. Second screw; 21. Clamp; 22. Electric push rod; 23. Bottom plate; 24. Moving wheel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a boiler installation lifting device with stable operation, comprising a U-shaped frame 1, hydraulic lifting rods 2 are arranged inside the front and rear ends of the left and right U-shaped frames 1, the top of the left hydraulic lifting rod 2 is fixedly connected with a first telescopic arm 3, the top of the right hydraulic lifting rod 2 is fixedly connected with a second telescopic arm 4, the left end of the second telescopic arm 4 is movably connected to the right end of the first telescopic arm 3, the front and rear sides of the first telescopic arm 3 are rotatably connected with a first screw rod 5, the right end of the first screw rod 5 is threadedly connected to the left end of the second telescopic arm 4, the left end of the first screw rod 5 is fixedly connected with a first bevel gear 6, the left side of the first telescopic arm 3 is rotatably connected with a rotating rod 8, the left and right sides of the rotating rod 8 are fixedly connected with a second bevel gear 9, the outer wall of the second bevel gear 9 is meshedly connected to the outer wall of the first bevel gear 6, the front end of the first telescopic arm 3 is fixedly connected with a first motor 7, the front end of the rotating rod 8 passes through the front end of the first telescopic arm 3 and is fixedly connected to the driving shaft of the first motor 7.

[0025] Specifically, start the first motor 7, which drives the rotating rod 8 and the second bevel gear 9 to rotate. The second bevel gear 9 drives the first bevel gear 6 and the first screw 5 to rotate, thereby driving the second telescopic arm 4 to perform telescopic movement inside the first telescopic arm 3. Start the hydraulic lifting rod 2 to drive the first telescopic arm 3 and the second telescopic arm 4 to be lifted to a preset height as needed to complete the deployment of the lifting device.

[0026] Reference Figure 1 and Figure 4 The right ends of the front and rear sides of the upper surface of the first telescopic arm 3 are fixedly connected with fixed blocks 12, and the middle part of the fixed block 12 is connected to the rotating shaft 13 for common rotation. The front and rear sides of the rotating shaft 13 are fixedly connected with a winding wheel 14, and a hook 15 is provided at the bottom end of the hanging rope inside the winding wheel 14. The right side of the rear end of the first telescopic arm 3 is fixedly connected with a support plate 10, and the upper end of the support plate 10 is fixedly connected with a second motor 11. The rear end of the rotating shaft 13 passes through the fixed block 12 and is fixedly connected to the front end of the driving shaft of the second motor 11. The inner middle part of the U-shaped frame 1 is fixed A fixing plate 16 is connected, and fixing rods 17 are fixedly connected to the front and rear ends of the upper surface of the fixing plate 16. The top ends of the fixing rods 17 respectively penetrate the left end of the first telescopic arm 3 and the right end of the second telescopic arm 4. The outer walls of the fixing rods 17 on the same side are movably connected to a lifting plate 18. The front and rear sides of the lifting plate 18 are movably connected to limit rods 19. The opposite ends of the limit rods 19 are fixedly connected to clamps 21. The middle part of the lifting plate 18 is threadedly connected to a second screw 20, and the opposite ends of the second screw 20 are respectively fixedly connected to the opposite ends of the clamps 21.

[0027] Specifically, the second motor 11 is started to drive the rotating shaft 13 and the winding wheel 14 to rotate, the winding wheel 14 rotates to drop the lifting rope hook 15 to the top of the boiler, the hook 15 is hung on the top of the boiler, the second screw 20 is rotated to drive the clamping plate 21 to move toward the middle, and the left and right ends of the boiler are firmly fixed, the second motor 11 is reversed to drive the winding wheel 14 to rotate in the opposite direction to tighten the lifting rope and thus lift the boiler, and when the boiler is lifted or lowered, the clamping plate 21, the second screw 20, and the lifting plate 18 are driven to move up and down along the fixing rod 17, and the clamping plate 21 fixes the boiler to prevent the boiler from shaking during transportation and lifting, thereby improving the stability and safety of the boiler installation.

[0028] Reference Figure 1 The inner bottom end of the U-shaped frame 1 is fixedly connected with an electric push rod 22, the output end of the electric push rod 22 passes through the bottom end of the U-shaped frame 1 and is fixedly connected with a bottom plate 23, and moving wheels 24 are arranged on both sides of the bottom end of the U-shaped frame 1.

[0029] Specifically, the moving wheels 24 facilitate the movement of the device, and the electric push rod 22 is started to drive the bottom plate 23 to descend and contact the ground to fix the device, which is beneficial to improve the stability of the device during operation.

[0030] Working principle: the lifting device is in a retracted state before use. When in use, the first motor 7 is started, and the first motor 7 drives the rotating rod 8 and the second bevel gear 9 to rotate. The second bevel gear 9 cooperates with the first bevel gear 6 to drive the first screw 5 to rotate. Under the action of the first screw 5, the second telescopic arm 4 moves to the right and unfolds, and the hydraulic lifting rod 2 is started to lift the first telescopic arm 3 and the second telescopic arm 4 to a preset height, and the device is moved to the upper end of the boiler. The second motor 11 is started to drive the rotating shaft 13 and the winding wheel 14 to rotate, and the winding wheel 14 rotates to lower the lifting rope and the hook 15, and the hook 15 is hung on the top of the boiler. At the same time, the second screw 20 is rotated, and the second screw 20 drives the splint 21 to move toward the middle to fix the left and right ends of the boiler to avoid shaking during the lifting and transportation of the boiler. The second motor 11 is reversed to drive the winding wheel 14 to rotate in the opposite direction to tighten the lifting rope and thereby lift the boiler. When the boiler is lifted or lowered, the splint 21, the second screw 20, and the lifting plate 18 are driven to move up and down along the fixed rod 17.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler installation lifting device with stable operation, comprising a U-shaped frame (1), characterized in that: Hydraulic lifting rods (2) are arranged inside the front and rear ends of the U-shaped frames (1) on the left and right sides. The top end of the hydraulic lifting rod (2) on the left side is fixedly connected to a first telescopic arm (3). The top end of the hydraulic lifting rod (2) on the right side is fixedly connected to a second telescopic arm (4). The left end of the second telescopic arm (4) is movably connected to the right end of the first telescopic arm (3). The front and rear sides of the first telescopic arm (3) are rotatably connected to a first screw rod (5). The right end of the first screw rod (5) is threadedly connected to the left end of the second telescopic arm (4). The left end of the first screw rod (5) is fixedly connected to a first bevel gear (6). The left side of the first telescopic arm (3) is rotatably connected to a rotating rod (8). The left and right sides of the rotating rod (8) are fixedly connected to a second bevel gear (9). The outer wall of the second bevel gear (9) is meshedly connected to the outer wall of the first bevel gear (6). The left side of the front end of the first telescopic arm (3) is fixedly connected to a first motor (7). The front end of the rotating rod (8) passes through the front end of the first telescopic arm (3) and is fixedly connected to the drive shaft of the first motor (7).

2. A boiler installation lifting device with stable operation according to claim 1, characterized in that: The upper surface of the first telescopic arm (3) is fixedly connected to a fixing block (12) at both the front and rear right ends, the middle of the fixing block (12) is rotatably connected to a rotating shaft (13), the front and rear sides of the rotating shaft (13) are fixedly connected to a winding wheel (14), and a hook (15) is provided at the bottom end of the hanging rope inside the winding wheel (14).

3. A boiler installation lifting device with stable operation according to claim 2, characterized in that: A support plate (10) is fixedly connected to the right side of the rear end of the first telescopic arm (3), a second motor (11) is fixedly connected to the upper end of the support plate (10), and a rear end of the rotating shaft (13) passes through the fixed block (12) and is fixedly connected to the front end of the drive shaft of the second motor (11).

4. A boiler installation lifting device with stable operation according to claim 1, characterized in that: A fixing plate (16) is fixedly connected to the middle of the inner side of the U-shaped frame (1), and fixing rods (17) are fixedly connected to the front and rear ends of the upper surface of the fixing plate (16), and the top ends of the fixing rods (17) respectively penetrate the left end of the first telescopic arm (3) and the right end of the second telescopic arm (4).

5. A boiler installation lifting device with stable operation according to claim 4, characterized in that: The outer wall of the fixing rod (17) on the same side is movably connected to a lifting plate (18), the front and rear sides of the lifting plate (18) are movably connected to a limiting rod (19), and the opposite ends of the limiting rod (19) are fixedly connected to a clamping plate (21).

6. A boiler installation lifting device with stable operation according to claim 5, characterized in that: The middle part of the lifting plate (18) is threadedly connected to a second screw rod (20), and the opposite ends of the second screw rod (20) are respectively fixedly connected to the opposite ends of the clamping plate (21).

7. The boiler installation lifting device with stable operation according to claim 1, characterized in that: The inner bottom end of the U-shaped frame (1) is fixedly connected to an electric push rod (22), and the output end of the electric push rod (22) passes through the bottom end of the U-shaped frame (1) and is fixedly connected to a bottom plate (23).

8. The boiler installation lifting device with stable operation according to claim 1, characterized in that: Moving wheels (24) are provided on both the front and rear sides of the bottom end of the U-shaped frame (1).

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