Special hoisting device for top of storage tank

Abstract

The utility model provides a special hoisting device for the top of a storage tank, which comprises a truss, one end of the truss is provided with a support rod, the support rod is rotatably arranged at the circle center of the top of the storage tank, and the other end of the truss extends out of the outer wall of the storage tank; the hoisting control box is mounted on the truss; the walking unit is arranged below the truss and comprises bottom wheels and a walking motor for driving the bottom wheels to rotate; the walking unit drives the truss to rotate with the supporting rod as the circle center, hoisting is carried out from different positions, the construction site area is not occupied during use, limitation of the site is avoided, the construction progress can be effectively accelerated, the working efficiency is improved, and the site construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a special hoisting device for the top of a storage tank. Background Art

[0002] In the process of executing large-scale storage tank projects, cranes are usually used to install storage tank steel plates, and the general storage tank construction period is relatively long. Especially in power plants and chemical plants, the construction area is limited, and the working surface is often limited when using cranes for lifting. The installation of storage tank steel plates requires high splicing accuracy. Construction in different areas requires mobile cranes to move back and forth for construction, which consumes a lot of time and the amount of lifting work for storage tank construction is large.

[0003] During construction, a large amount of space needs to be reserved on site for crane use. Usually, the construction road is single, and the area reserved for construction is often restricted by the crane. The crane often occupies the on-site operation area for a long time, which has a negative impact on the construction. If the construction operation area is small and the mobile crane does not have enough support space, it will have a huge impact on the safety and progress of the project, and seriously affect the on-site construction. In addition, the crane shift fee is expensive.

[0004] Currently, there are many inconveniences in using cranes to process storage tanks. It is necessary to provide a new type of lifting equipment to improve the problems existing in the current storage tank lifting operation. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a special hoisting device for the top of a storage tank, comprising:

[0006] A truss, wherein a support rod is provided at one end of the truss, the support rod is rotatably mounted at the center of the top of the storage tank, and the other end of the truss extends out of the outer wall of the storage tank;

[0007] A lifting control box, wherein the lifting control box is installed on the truss;

[0008] A walking unit, which is arranged below the truss and includes a bottom wheel and a walking motor for driving the bottom wheel to rotate;

[0009] The traveling unit drives the truss to rotate around the supporting rod and perform lifting from different positions.

[0010] Specifically, a track is provided below the traveling unit and along the traveling track of the bottom wheel. The track is provided concentrically with the storage tank and is fixedly installed on the top of the storage tank. The bottom wheel is engaged in the track.

[0011] Specifically, a first bracket is provided above the truss, the first bracket is fixedly installed at 1 / 2 of the truss, and the lifting control box is installed on the first bracket.

[0012] Specifically, the hoisting control box is provided with a hoisting winch and a control box, and the hoisting winch is electrically connected to the control box.

[0013] Specifically, the travel unit includes a fixed bracket, a bottom wheel and a travel motor are installed in the fixed bracket, and the travel motor is connected to the bottom wheel through a gear set or a V-belt.

[0014] Specifically, the truss extends out by 0.4m-0.5m.

[0015] Specifically, the support rod is rotatably connected to the center of the storage tank through a sleeve or a bearing group.

[0016] Specifically, a guide roller is provided at the end of the truss extending out of the storage tank.

[0017] Specifically, the fixed bracket is triangular in shape, bottom wheels are respectively arranged on both sides of the fixed bracket, a second bracket is arranged in the fixed bracket, and the travel motor is fixedly mounted on the second bracket.

[0018] Specifically, the travel motor and the control box are respectively connected to the remote control device signal.

[0019] The beneficial effects of the utility model are:

[0020] 1. The hoisting equipment provided by the utility model has a simple structure, is easy to manufacture, has a high repetition rate of the main equipment, is easy to maintain and service, and has a low manufacturing cost compared to the crane shift fee, thus saving a lot of money for the project.

[0021] 2. The hoisting equipment provided by the utility model is easy to operate. The hoisting position is adjusted by the walking unit, and the storage tank can be hoisted from various angles. It does not occupy the construction site area when in use and will not be restricted by the site. It can effectively promote the construction progress, improve work efficiency, and reduce on-site construction costs.

[0022] 3. The lifting equipment provided by the utility model is suitable for arc-top storage tanks and flat-top storage tanks, and the equipment is not affected by fences or other equipment installed on the edge of the storage tank, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of the installation structure of the utility model in use;

[0024] Figure 2 It is a three-dimensional diagram of the overall structure of the utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the walking unit of the utility model.

[0026] Figure numerals: 1. Truss; 11. Support rod; 12. Guide roller; 2. Lifting control box; 3. Track; 4. Travel unit; 41. Fixed bracket; 42. Travel motor; 43. Bottom wheel; 44. Driving gear; 45. Driven gear; 46. Synchronous belt; 5. Storage tank; 6. Wire rope. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solution of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] As shown in the figure, a special lifting device for the top of a storage tank includes a truss 1, a lifting control box 2 installed on the truss 1, a traveling unit 4 installed at the bottom of the truss 1 and a track 3 installed on the top of the storage tank 5. The traveling unit 4 moves along the track 3 to drive the truss 1 to rotate and perform lifting from different positions.

[0029] A support rod 11 is provided at one end of the truss 1. A sleeve or a bearing group is provided at the top center of the storage tank 5 to connect with the support rod 11. The connection method of the support rod 11 can be selected according to the project cycle. The other end of the truss 1 extends out of the outer wall of the storage tank 5, and the extension distance of the truss 1 is preferably 0.4m-0.5m. A guide roller 12 is provided at the end of the truss 1 extending out of the storage tank 5. During hoisting, the wire rope 6 is pressed on the guide roller 12 to prevent the wire rope 6 from deflecting when hoisting materials, thereby improving the stability of the hoisting process and reducing the wear caused by the friction between the wire rope 6 and the truss 1 during the hoisting process.

[0030] A first bracket is provided above the truss 1, and the first bracket is fixedly installed at 1 / 2 of the truss 1 by welding, and a hoisting control box 2 is installed on the first bracket. A hoisting winch and a control box are provided in the hoisting control box 2. The hoisting winch retracts and releases the steel wire rope 6 by rotating, and the steel wire rope 6 is used to hoist the objects to be hoisted. If the load of the tower top support is met, the hoisting winch can be flexibly selected. The hoisting winch is a prior art and will not be described in detail; the hoisting winch is electrically connected to the control box, and the control box controls the hoisting winch to retract and release the steel wire rope 6. The effective hoisting length of the steel wire rope 6 is greater than the net height of the storage tank 5 by more than 5m.

[0031] A walking unit 4 is arranged below the truss 1, and the walking unit 4 includes a walking motor 42 and a bottom wheel 43. The walking unit 4 is arranged near the edge of the storage tank 5. The walking unit 4 takes the support rod 11 as the center of the circle, and the distance from the support rod 11 to the walking unit 4 is the rotation radius. The walking unit 4 goes around the top of the storage tank 5 to adjust the hoisting position. As an embodiment of the utility model, the bottom wheel 43 is fixedly connected to the output shaft of the walking motor 42, and the walking motor drives the bottom wheel to move around the support rod. As another embodiment of the utility model, the walking unit 4 also includes a fixed bracket 41, which is fixedly installed at the bottom of the truss 1, and the walking motor 42 and the bottom wheel 43 are installed in the fixed bracket 41, and the bottom wheel is multiple. As a preferred embodiment of the utility model, the fixed bracket 41 is triangular and has good stability. The bottom wheels 43 are respectively arranged on both sides of the fixed bracket 41, and a second bracket is arranged in the fixed bracket 41, and the walking motor 42 is fixedly installed on the second bracket. The walking motor 42 can be connected to the bottom wheel 43 through a gear set or a V-belt to control the rotation of the bottom wheel 43. The following is an overview of the technical solution using a V-belt for connection. As shown in the figure, a driving gear 44 is provided on the output shaft of the travel motor 42, and is fixedly connected to the output shaft of the travel motor 42 through a convex key; a driven gear 45 is coaxially provided with the bottom wheel 43, and is fixedly connected to the bottom wheel 43 through a convex key. A synchronous belt 46 is provided on the outer sleeve of the driving gear 44, and the gears are engaged in the synchronous belt 46. The travel motor 42 drives the synchronous belt 46 to transmit, and the synchronous belt 46 drives the driven gear 45 to rotate, thereby controlling the movement of the bottom wheel 43. The remote control device is connected to the signal of the travel motor 42 to control the travel unit 4 to move forward, backward, stop, brake, etc.

[0032] Along the walking track of the bottom wheel 43, a track 3 is provided below the walking unit 4. The track 3 is concentrically arranged with the top of the storage tank 5 to limit the moving track of the bottom wheel 43. The track 3 can be connected to the top of the tank by welding or bolting. The track 3 is preferably a single steel rail. A groove is provided in the bottom wheel 43. The bottom wheel 43 is sleeved on the track 3 to limit the movement of the roller. In addition, during hoisting, the load-bearing load mainly acts on the overall track 3, which is evenly distributed on the top of the storage tank 5, and can be used easily and safely within the specified load. When the arc-shaped top storage tank 5 is processed and it is inconvenient to install the track, the track can be installed without installing it, and the bottom wheel abuts against the top of the storage tank 5.

[0033] The device is suitable for large flat-top and curved-top storage tanks 5, and the device is not affected by fences or other equipment installed on the edge of the storage tank 5. The fence can be avoided by raising the height of the support rod 11, and the device has strong applicability.

[0034] During installation, calculate whether the tank top load meets the maximum load requirements for lifting. If not, reinforce the tank top; calculate the center of the tank top by measurement, set the support rod 11, and determine the layout point of the track 3 through the center; set the travel unit 4 and the track 3 according to the rotation radius, and temporarily fix them; fix the truss 1 and the travel unit 4, power on and debug whether the travel unit 4 runs according to the track 3, and after the adjustment, reinforce the travel unit 4, truss 1 and support rod 11; install the lifting control box 2 on the first bracket of the truss 1, and debug the lifting winch; carry out a load test after debugging, and put it into use after passing the test.

[0035] When in use, the remote control device controls the walking unit 4 to rotate the truss 1 around the top of the storage tank 5 with the support rod 11 as the center, which is convenient for adjusting the lifting position. The remote control device controls the lifting winch to lift the wire rope 6 to adjust the height of the material, which is convenient for material transportation and installation.

[0036] The above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A special lifting device for the top of a storage tank, characterized in that: include: A truss (1), wherein one end of the truss (1) is provided with a support rod (11), the support rod (11) is rotatably mounted at the center of the top of the storage tank (5), and the other end of the truss (1) extends out of the outer wall of the storage tank (5); A lifting control box (2), wherein the lifting control box (2) is installed on the truss (1); A walking unit (4), the walking unit (4) being arranged below the truss (1) and comprising a bottom wheel (43) and a walking motor (42) for driving the bottom wheel (43) to rotate; The walking unit (4) drives the truss (1) to rotate with the support rod (11) as the center of the circle, and performs lifting from different positions.

2. The special lifting device for the top of the storage tank according to claim 1 is characterized in that: A track (3) is provided below the walking unit (4) along the walking track of the bottom wheel (43); the track (3) is arranged concentrically with the storage tank (5) and is fixedly mounted on the top of the storage tank (5); the bottom wheel (43) is engaged in the track (3).

3. The special hoisting device for the top of the storage tank according to claim 1 is characterized in that: A first bracket is arranged above the truss (1). The first bracket is fixedly mounted at 1 / 2 of the truss (1), and a lifting control box (2) is mounted on the first bracket.

4. The special hoisting device for the top of the storage tank according to claim 1 is characterized in that: The hoisting control box (2) is provided with a hoisting winch and a control box, and the hoisting winch is electrically connected to the control box.

5. The special hoisting device for the top of the storage tank according to claim 1 is characterized in that: The travel unit (4) comprises a fixed bracket (41), a bottom wheel (43) and a travel motor (42) are mounted in the fixed bracket (41), and the travel motor (42) is connected to the bottom wheel (43) via a gear set or a V-belt.

6. The special hoisting device for the top of a storage tank according to claim 1, characterized in that: The extension distance of the truss (1) is 0.4m-0.5m.

7. The special hoisting device for the top of a storage tank according to claim 1, characterized in that: The support rod (11) is rotatably connected to the center of the storage tank (5) via a sleeve or a bearing group.

8. The special hoisting device for the top of a storage tank according to claim 1, characterized in that: A guide roller (12) is provided at the end of the truss (1) extending out of the storage tank (5).

9. The special hoisting device for the top of a storage tank according to claim 5, characterized in that: The fixed bracket (41) is triangular in shape, bottom wheels (43) are respectively arranged on both sides of the fixed bracket (41), a second bracket is arranged in the fixed bracket (41), and the travel motor (42) is fixedly mounted on the second bracket.

10. The special hoisting device for the top of a storage tank according to claim 4, characterized in that: The travel motor (42) and the control box are respectively connected to the remote control device signal.

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