Welding deformation correcting device for straight extending arm frame of overhead working truck

Abstract

The utility model relates to a welding deformation correcting device for a straight extending arm frame of an overhead working truck, and belongs to the field of overhead working trucks. The adjusting device comprises a first adjusting frame, a base and a second adjusting frame, a guide rail is arranged on the base, and the first adjusting frame and the second adjusting frame are both arranged on the base and are in sliding fit with the guide rail. The pressure applying assembly is used for applying pressure to the inner wall of the straight extending arm support, the expander assembly is used for expanding the inner wall of the straight extending arm support and plays a supporting role, the pressure applying assembly and the expander assembly are both arranged on the base and are in sliding fit with the guide rail, and the pressure applying assembly is matched with the expander assembly and comprises an air cylinder, a pressing plate and a pressure applying frame. The pressing frame is arranged on the base and is in sliding fit with the guide rail, a cylinder barrel of the air cylinder is arranged on the pressing frame, a piston rod of the air cylinder is connected with the pressing plate, and the pressing plate is of a latticed structure.

Description

Technical Field

[0001] The utility model relates to a welding deformation correction device for a straight extension boom of an aerial work vehicle, belonging to the field of aerial work vehicles. Background Art

[0002] With the development of society and the advancement of technology, the application areas of aerial work platforms are also expanding, such as: aerospace, shipbuilding, petroleum, wind power generation, highways, maintenance of viaducts, maintenance of high-rise building facades, traffic lights, urban monitoring, outdoor advertising, etc. Aerial work platforms also come in various forms, including folding, straight-extending, and hybrid types.

[0003] Among many types of vehicle models, straight arm types occupy a large share. The welding deformation of straight arm is large during the production process. At present, the correction method of straight arm is often adopted by simple static pressure correction method or water and fire correction method. The simple static pressure correction method will rebound after the pressure is released, and the correction effect of the simple water and fire correction method is poor in stability. How to better correct its flatness becomes a technical problem that we need to solve. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a welding deformation correction device for a straight extension boom of an aerial work vehicle with a reasonable structural design.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: the welding deformation correction device of the straight extension arm of the aerial work vehicle includes a No. 1 adjustment frame, a base and a No. 2 adjustment frame, the base is provided with a guide rail, the No. 1 adjustment frame and the No. 2 adjustment frame are both arranged on the base and slidingly cooperate with the guide rail, and its structural characteristics are: it also includes a pressure component for applying pressure to the outer wall of the straight extension arm, and an expander component for expanding the inner wall of the straight extension arm and playing a supporting role, the pressure component and the expander component are both arranged on the base and slidingly cooperate with the guide rail, and the pressure component cooperates with the expander component.

[0006] Furthermore, the pressure assembly includes a cylinder, a pressure plate and a pressure frame. The pressure frame is arranged on the base and slidingly cooperates with the guide rail. The cylinder barrel of the cylinder is arranged on the pressure frame, and the piston rod of the cylinder is connected to the pressure plate.

[0007] Furthermore, the pressing plate is arranged in a grid structure.

[0008] Furthermore, the expander assembly includes an expander top plate, a hydraulic cylinder and an expander base. The cylinder barrel of the hydraulic cylinder is arranged on the expander base, and the piston rod of the hydraulic cylinder is connected to the expander top plate.

[0009] Furthermore, the expander assembly is placed on an expander placement rack, and the expander placement rack is arranged on a base and slidably cooperates with the guide rail.

[0010] Furthermore, a fixing frame is fixed at each end of the base, and a pulley No. 1 and a pulley No. 2 are respectively provided on the two fixing frames. The pulley No. 1 and the pulley No. 2 are respectively used to pass around the pull rope No. 1 and the pull rope No. 2, and one end of the pull rope No. 1 and the pull rope No. 2 are respectively connected to the two ends of the expander base.

[0011] Furthermore, it also includes a spray gun for heating the outer wall of the straight extension boom, and a water source for cooling the outer wall of the straight extension boom after being heated.

[0012] Compared with the existing technology, the utility model has the following advantages: the aerial work vehicle straight extension arm welding deformation correction device combines the water and fire correction method on the basis of the static pressure correction method, so that the correction effect of the static pressure correction method is fixed after heating and cooling, and at the same time abandons the shortcomings of the static pressure correction method rebounding after the pressure is released and the water and fire correction method being unstable and easy to over-correct. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the main structure of the aerial work vehicle straight extension arm welding deformation correction device of the embodiment.

[0014] Figure 2 The utility model is a partial structural diagram of a device for correcting welding deformation of a straight extension boom of an aerial work vehicle according to an embodiment of the present invention.

[0015] Figure 3 It is a schematic diagram of the main structure of the straight extension arm of an embodiment of the present utility model.

[0016] In the figure: cylinder 1, pressure plate 2, pulley No. 1 3, adjustment frame No. 1 4, base 5, adjustment frame No. 2 6, expander placement frame 7, pulley No. 2 8, pull rope No. 2 9, expander assembly 10, pull rope No. 1 11, expander top plate 12, hydraulic cylinder 13, expander base 14, pressure frame 15, straight extension arm frame 16, guide rail 17. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0018] Example

[0019] See also Figures 1 to 3As shown, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0020] The welding deformation correction device for the aerial work vehicle straight extension boom in this embodiment includes a static pressure correction mechanism and a water and fire correction mechanism, and the static pressure correction mechanism and the water and fire correction mechanism cooperate with each other.

[0021] The static pressure correction mechanism in this embodiment includes a No. 1 adjustment frame 4, a base 5, a No. 2 adjustment frame 6, a pressure assembly for applying pressure to the outer wall of the straight arm frame 16, and an expander assembly 10 for expanding the inner wall of the straight arm frame 16 and providing support; a guide rail 17 is provided on the base 5, and the No. 1 adjustment frame 4 and the No. 2 adjustment frame 6 are both provided on the base 5 and slidingly cooperate with the guide rail 17, and the pressure assembly and the expander assembly 10 are both provided on the base 5 and slidingly cooperate with the guide rail 17, and the pressure assembly cooperates with the expander assembly 10.

[0022] The pressure assembly in this embodiment includes a cylinder 1, a pressure plate 2 and a pressure frame 15. The pressure frame 15 is arranged on the base 5 and slides with the guide rail 17. The cylinder barrel of the cylinder 1 is arranged on the pressure frame 15, and the piston rod of the cylinder 1 is connected to the pressure plate 2. The pressure plate 2 is arranged in a grid structure.

[0023] The expander assembly 10 in this embodiment is placed on the expander placement frame 7, the expander placement frame 7 is set on the base 5 and slides with the guide rail 17. The expander assembly 10 includes an expander top plate 12, a hydraulic cylinder 13 and an expander base 14. The cylinder barrel of the hydraulic cylinder 13 is set on the expander base 14, and the piston rod of the hydraulic cylinder 13 is connected to the expander top plate 12.

[0024] In this embodiment, a fixing frame is fixed at each end of the base 5, and a pulley No. 1 3 and a pulley No. 2 8 are respectively provided on the two fixing frames. The pulley No. 1 3 and the pulley No. 2 8 are respectively used to pass around the pull rope No. 1 11 and the pull rope No. 2 9. One end of the pull rope No. 1 11 and the pull rope No. 2 9 are respectively connected to the two ends of the expander base 14.

[0025] The water-fire correction mechanism in this embodiment includes a spray gun for heating the outer wall of the straight extension arm 16 and a water source for cooling the outer wall of the straight extension arm 16 after being heated.

[0026] Specifically, the aerial work vehicle straight extension boom welding deformation correction device can be used to implement the aerial work vehicle straight extension boom welding deformation correction method. The aerial work vehicle straight extension boom welding deformation correction method includes a static pressure correction method and a water and fire correction method. The static pressure correction method and the water and fire correction method are respectively composed of a static pressure correction mechanism and a water and fire correction mechanism.

[0027] The static pressure correction mechanism consists of a pressure component and an expander component 10 and a base 5 with a guide rail 17; the water and fire correction mechanism consists of a spray gun and a water source. The spray gun heats and sprays tap water to cool down at the same time, eliminating welding stress and cooperating with the static pressure method to achieve the purpose of flatness correction.

[0028] The welding deformation correction method of the aerial work vehicle straight extension arm combines the respective advantages of the static pressure correction method and the water and fire correction method. The water and fire correction method is used on the basis of the static pressure correction method, so that the correction results of the static pressure correction method are fixed after heating and cooling. At the same time, the shortcomings of the static pressure correction method that rebounds after the pressure is released and the water and fire correction method that is unstable and prone to over-correction are abandoned.

[0029] When the aerial work vehicle straight arm welding deformation correction device is in use: the straight arm 16 to be corrected is placed on the No. 1 adjustment frame 4 and the No. 2 adjustment frame 6, the expander assembly 10 is moved to the position where the flatness needs to be corrected in the straight arm 16 by the No. 1 pull rope 11, the expander's oil pump is started to lift the expander's hydraulic cylinder 13 so that the expander top plate 12 of the straight arm 16 inner wall, the pressure frame 15 is moved to the top of the expander assembly 10, and the cylinder 1 is started to press the pressure plate 2 to the outer wall of the straight arm 16; at this time, a spray gun is used to heat the outer wall of the straight arm 16, and tap water is injected to cool it down; static pressure correction is performed with the cylinder 1 and the pressure plate 2, and the effect of the static pressure correction is fixed by water and fire; after the correction is completed, the hydraulic cylinder 13 and the cylinder 1 are retracted, and the expander assembly 10 is moved back to the expander placement frame 7 by the No. 2 pull rope 9.

[0030] The aerial work vehicle straight arm welding deformation correction device can also move the positions of the movable No. 1 adjustment frame 4 and the No. 2 adjustment frame 6 according to the length of the straight arm 16 to place straight arms 16 of different lengths. The expander assembly 10 is driven by the electric hydraulic pump to drive the hydraulic cylinder 13 to apply static pressure to the inner wall of the straight arm 16, and at the same time can meet the correction requirements of straight arms 16 with different cross-sections.

[0031] It should be noted that the straight arm 16 is a cylindrical structure. After the straight arm 16 is placed on the No. 1 adjustment frame 4 and the No. 2 adjustment frame 6, the No. 1 pull rope 11 is passed through the straight arm 16 and then around the No. 1 pulley 3 and then pulled back; the outer grid structure of the pressure plate 2 is a grid structure. When the pressure plate 2 is pressed on the outer wall of the straight arm 16, it is heated inside the grid structure through a spray gun, and water is injected into the grid structure and then flows out.

[0032] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is merely an example of the structure of the utility model. Any equivalent changes or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the scope of protection of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should fall within the scope of protection of the utility model.

Claims

1. A welding deformation correction device for a vertical extension boom of an aerial work vehicle, comprising a first adjustment frame (4), a base (5) and a second adjustment frame (6), wherein a guide rail (17) is provided on the base (5), and the first adjustment frame (4) and the second adjustment frame (6) are both provided on the base (5) and slidably cooperate with the guide rail (17), characterized in that: It also includes a pressure component for applying pressure to the outer wall of the straight arm (16), and an expander component (10) for expanding the inner wall of the straight arm (16) and providing support. The pressure component and the expander component (10) are both arranged on the base (5) and slidably engaged with the guide rail (17). The pressure component cooperates with the expander component (10).

2. The welding deformation correction device for the vertical extension boom of an aerial work vehicle according to claim 1 is characterized in that: The pressure assembly comprises a cylinder (1), a pressure plate (2) and a pressure frame (15); the pressure frame (15) is arranged on the base (5) and is slidably engaged with the guide rail (17); the cylinder barrel of the cylinder (1) is arranged on the pressure frame (15); and the piston rod of the cylinder (1) is connected to the pressure plate (2).

3. The welding deformation correction device for the vertical extension boom of an aerial work vehicle according to claim 2 is characterized in that: The pressing plate (2) is arranged in a grid-like structure.

4. The welding deformation correction device for the vertical extension boom of an aerial work vehicle according to claim 1 is characterized in that: The expander assembly (10) comprises an expander top plate (12), a hydraulic cylinder (13) and an expander base (14); the cylinder barrel of the hydraulic cylinder (13) is arranged on the expander base (14); and the piston rod of the hydraulic cylinder (13) is connected to the expander top plate (12).

5. The welding deformation correction device for the vertical extension boom of an aerial work vehicle according to claim 1 is characterized in that: The expander assembly (10) is placed on an expander placement frame (7), and the expander placement frame (7) is arranged on a base (5) and is in sliding engagement with a guide rail (17).

6. The welding deformation correction device for the vertical extension boom of an aerial work vehicle according to claim 1 is characterized in that: A fixing frame is fixed to each of the two ends of the base (5), and a first pulley (3) and a second pulley (8) are respectively provided on the two fixing frames. The first pulley (3) and the second pulley (8) are used to pass through the first pull rope (11) and the second pull rope (9), respectively. One end of the first pull rope (11) and the second pull rope (9) are respectively connected to the two ends of the expander base (14).

7. The welding deformation correction device for the vertical extension boom of an aerial work vehicle according to claim 1 is characterized in that: It also includes a spray gun for heating the outer wall of the straight extension arm (16), and a water source for cooling the outer wall of the straight extension arm (16) after heating.

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