Storage tank top unconventional hoisting structure capable of changing range of suspension arm by moving trolley

Abstract

The utility model discloses a storage tank top unconventional hoisting structure capable of changing the range of a hoisting arm by moving a trolley, which is used for hoisting a tank body side plate jointed plate after the top of a storage tank is mounted, and comprises a hoisting arm which is in rotary pair connection with a central support column of the storage tank, the axis of a rotation pair formed by the suspension arm and the central supporting column is perpendicular to the central supporting column, so that the projection of the suspension arm on the horizontal plane is elongated or shortened when the suspension arm rotates; a trolley is arranged between the suspension arm and the top of the storage tank; the trolley comprises a support connected with the suspension arm in a moving pair mode and wheels arranged at the bottom of the support and driven by a motor. The hoisting arm is provided with a winch for collecting a hoisting steel wire rope and a guide wheel for restraining the trend of the hoisting steel wire rope; one end of the hoisting steel wire rope is connected with the winch, and the other end is connected with a movable pulley with a lifting hook at the suspended end of the suspension arm. According to the utility model, by changing the projection length of the suspension arm on the horizontal plane, the simple lifting device built by adopting small equipment can be suitable for splicing groove body side plates with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to an unconventional lifting structure on the top of a storage tank which can change the range of a lifting arm by moving a trolley. Background Art

[0002] During the construction of various storage tanks, a lot of large-scale machinery and equipment need to be brought on site for installation, and this process usually requires lifting machinery to cooperate with the construction.

[0003] Currently common large-scale lifting machinery includes: bridge cranes, tower cranes, mobile cranes, mast cranes, etc.; small lifting equipment includes: jacks, pulleys, hoists, winches, etc.

[0004] Affected by the influence of existing buildings and sites on site, general lifting equipment is subject to certain limitations in actual use, and the corresponding lifting work is hindered.

[0005] However, during the actual construction process, the following problems were found in the equipment:

[0006] The truck crane planned to be used on site was unable to meet the lifting needs of the steel plates required for the production of part of the cold water tank body due to limited on-site working space, affecting the project schedule and safety goals.

[0007] If a small lifting equipment is used to build Figure 1 The lifting device shown often has the problem that the boom length cannot be changed and cannot be used for trough side panel panels of different sizes. Although lifting construction can be carried out, the boom needs to be reinstalled each time according to the size of the trough side panel panels, or multiple booms of different sizes need to be installed, resulting in increased labor costs and construction period.

[0008] Therefore, how to solve the problem that large equipment in existing tank construction is too large and the application range of simple lifting devices built with small equipment is too small has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0009] In view of the above-mentioned defects of the prior art, the utility model provides an unconventional lifting structure for the top of the tank by changing the range of the boom through a mobile trolley. The purpose is to change the projection length of the boom on the horizontal plane so that the applicable range of the simple lifting device built with small equipment can be suitable for tank side panel panels of different sizes.

[0010] To achieve the above-mentioned purpose, the utility model discloses an unconventional lifting structure for the top of a tank, which changes the range of the lifting arm by moving a trolley, and is used for lifting the side panel of the tank body after the top of the tank is installed. It includes a lifting arm connected to the central pillar of the tank in a swivel joint.

[0011] The axis of the revolving pair formed by the boom and the central support is perpendicular to the central support, so that the projection of the boom on the horizontal plane is extended or shortened during rotation;

[0012] A trolley is provided between the boom and the top of the storage tank;

[0013] The trolley includes a bracket connected to the boom in a moving pair, and a wheel provided at the bottom of the bracket and driven by an electric motor;

[0014] The boom is provided with a winch for collecting the hoisting wire rope and a guide wheel for restricting the direction of the hoisting wire rope;

[0015] One end of the hoisting wire rope is connected to the hoist, and the other end is connected to a movable pulley with a hook at the end of the boom that is suspended in the air.

[0016] Preferably, the boom and the central pillar are connected to each other via a bearing to form a rotary pair.

[0017] Preferably, the hoisting wire rope is connected to the end of the boom suspended in the air after passing through the movable pulley, and a movable pulley limiter linked to the hoist is provided on the rope body close to the end connected to the boom suspended in the air;

[0018] When the movable pulley is lifted to the position of the movable pulley limiter and cannot move upward, the movable pulley limiter sends a signal to stop the winch from taking in the hoisting wire rope.

[0019] Preferably, the top of the storage tank is made of steel plate with a strength of Q345R or above.

[0020] Preferably, the bracket is formed by welding seamless steel pipes with a size of DN219*6 or above.

[0021] Preferably, the diameter of the lifting wire rope is greater than 16 mm.

[0022] Beneficial effects of the utility model:

[0023] The application of the utility model enables the simple lifting device constructed with small equipment to be applicable to the trough side panel assembly of different sizes.

[0024] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A structural diagram of the prior art is shown.

[0026] Figure 2A structural diagram of an embodiment of the present utility model is shown.

[0027] Figure 3 Shown is an enlarged structural schematic diagram of an embodiment of the present utility model.

[0028] Figure 4 Show the utility model Figure 3 A local enlarged schematic diagram of point A in the middle. DETAILED DESCRIPTION

[0029] Example

[0030] like Figures 2 to 4 As shown, the unconventional lifting structure for the top of the tank is used to change the range of the lifting arm by moving the trolley, and is used to lift the side panels of the tank body after the top of the tank is installed. It is characterized by including a lifting arm 3 connected to the central pillar 2 of the tank 1 in a swivel joint.

[0031] The axis of the revolving pair formed by the boom 3 and the central support 2 is perpendicular to the central support 2, so that the projection of the boom 3 on the horizontal plane is extended or shortened during rotation;

[0032] A trolley 4 is provided between the boom 3 and the top of the storage tank 1;

[0033] The trolley 4 includes a bracket 41 connected to the boom 3 in a moving pair, and a wheel 43 provided at the bottom of the bracket 41 and driven by a motor 42;

[0034] The boom 3 is provided with a winch 5 for collecting the hoisting wire rope 6, and a guide wheel 61 for restricting the direction of the hoisting wire rope 6;

[0035] One end of the hoisting wire rope 6 is connected to the winch 5, and the other end is connected to a movable pulley 7 with a hook at the suspended end of the boom 3.

[0036] The utility model changes the projection length of the boom on the horizontal plane, so that the application range of the simple lifting device constructed with small equipment can be adapted to the trough side panel assembly of different sizes.

[0037] In some embodiments, a slewing joint is formed between the boom 3 and the central support 2 via a bearing 9 .

[0038] In some embodiments, the hoisting wire rope 6 is connected to the end of the boom 3 suspended in the air after passing through the movable pulley 7, and a movable pulley limiter 8 linked to the winch 5 is provided on the rope body near the end connected to the boom 3;

[0039] When the movable pulley 7 is lifted to the position of the movable pulley limiter 8 and cannot move upward, the movable pulley limiter 8 sends a signal to stop the winch 5 from taking in the hoisting wire rope 6.

[0040] In practical applications, the provision of the movable pulley limiter 8 can prevent hoisting accidents caused by excessive hoisting during hoisting.

[0041] In some embodiments, the top of the storage tank 1 is made of a steel plate with a strength of Q345R or higher.

[0042] In practical applications, the top of the storage tank 1 is made of steel plates with a strength of Q345R or higher, which can better bear the load during lifting.

[0043] In some embodiments, the bracket 41 is formed by welding seamless steel pipes with a size of DN219*6 or larger.

[0044] In practical applications, the bracket 41 is welded with seamless steel pipes with a size of DN219*6 or above, which can better bear the load during lifting.

[0045] In some embodiments, the diameter of the hoisting wire rope 6 is greater than 16 mm.

[0046] In practical applications, the use of a hoisting wire rope 6 with a diameter of more than 16 mm can better bear the load during hoisting.

[0047] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. The unconventional lifting structure of the tank top is used to lift the tank side panels after the tank top is installed. It is characterized by: It comprises a suspension arm (3) connected to a central support (2) of a storage tank (1) in a swivel joint; The axis of the revolving pair formed by the boom (3) and the central support (2) is perpendicular to the central support (2), so that the projection of the boom (3) on the horizontal plane is extended or shortened during rotation; A trolley (4) is provided between the boom (3) and the top of the storage tank (1); The trolley (4) comprises a bracket (41) connected to the boom (3) in a movable manner, and a wheel (43) arranged at the bottom of the bracket (41) and driven by a motor (42); The boom (3) is provided with a winch (5) for collecting the hoisting wire rope (6), and a guide wheel (61) for restricting the direction of the hoisting wire rope (6); One end of the hoisting wire rope (6) is connected to the hoist (5), and the other end is connected to a movable pulley (7) with a hook at the suspended end of the boom (3).

2. The unconventional lifting structure for the top of a storage tank by changing the range of the lifting arm by moving a trolley according to claim 1 is characterized in that: The boom (3) and the central support (2) are connected via a bearing (9) to form a slewing pair.

3. The unconventional lifting structure for the top of a storage tank by changing the range of the lifting arm by moving a trolley according to claim 1 is characterized in that: The hoisting wire rope (6) is connected to the suspended end of the boom (3) after passing through the movable pulley (7), and a movable pulley stopper (8) linked to the winch (5) is provided on the rope body close to the suspended end of the boom (3); When the movable pulley (7) is lifted to the position of the movable pulley limiter (8), it cannot move upward any further, and at the same time, the movable pulley limiter (8) sends a signal to cause the winch (5) to stop collecting the lifting wire rope (6).

4. The unconventional lifting structure for the top of a storage tank by changing the range of the lifting arm by moving a trolley according to claim 1 is characterized in that: The top of the storage tank (1) is made of a steel plate with a strength of Q345R or higher.

5. The unconventional lifting structure for the top of a storage tank by changing the range of the lifting arm by moving a trolley according to claim 1 is characterized in that: The bracket (41) is welded from seamless steel pipes with a size of DN219*6 or more.

6. The unconventional lifting structure for the top of a storage tank by changing the range of the lifting arm by moving a trolley according to claim 1 is characterized in that: The diameter of the hoisting steel wire rope (6) is greater than 16 mm.

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