Damping device of folding arm crane

Abstract

The utility model relates to the technical field of folding arm cranes, in particular to a damping device of a folding arm crane, which comprises a first adjusting seat, two threaded holes are arranged on the first adjusting seat, adjusting screws are arranged on the threaded holes, one end of each adjusting screw is provided with a PU (polyurethane) glue stick, and the other end of each adjusting screw is provided with a reinforcing nut. According to the utility model, by rotating the two adjusting screw rods, the two adjusting screw rods are screwed with the two threaded holes in the first adjusting seat, and the two PU glue sticks are driven to move up and down, so that the tightness of the damping device and the folding arm crane can be adjusted according to different requirements, and the PU glue sticks also have certain elasticity and recovery capability, so that the damping device can be conveniently adjusted. Good performance can be kept in repeated movement, and damping effect reduction caused by long-term use is reduced. In the moving process of the folding arm crane, the PU glue stick can absorb impact energy and reduce collision and vibration between parts, so that abrasion is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to a damping device, in particular to a damping device for a folding arm crane, and belongs to the technical field of folding arm cranes. Background Art

[0002] Knuckle boom crane is a kind of lifting machinery with the characteristics of strong flexibility, high efficiency, safety, reliability and wide application. It realizes the lifting, loading and unloading and transportation of objects through the telescopic and adjustment of the folding arm frame and the coordinated action of the lifting mechanism, slewing mechanism and electrical system.

[0003] During operation, existing folding arm cranes often vibrate and shake due to factors such as load changes and external force impacts, which not only affects the operating efficiency but also may pose a threat to the safety of equipment and personnel.

[0004] Therefore, it is urgent to improve the damping device of the folding arm crane to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a damping device for a folding arm crane. By rotating two adjusting screws, the two adjusting screws are threadedly engaged with the two threaded holes on the first adjusting seat, driving the two PU rubber sticks to move up and down, thereby being able to adjust the tightness of the damping device and the folding arm crane according to different needs. The reinforced nut can prevent the connection from loosening, ensuring that the connection between the adjusting screw and the first adjusting seat is still firm and reliable under vibration, impact or dynamic load conditions, and the PU rubber stick also has a certain elasticity and recovery ability, which can maintain good performance in repeated movements and reduce the decline in damping effect caused by long-term use. During the movement of the folding arm crane, the PU rubber stick can absorb impact energy, reduce collisions and vibrations between components, thereby reducing wear and extending the service life of the equipment.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A damping device for a folding arm crane comprises a first adjustment seat, the first adjustment seat is provided with two threaded holes, an adjusting screw is threadedly connected to the threaded hole, the adjusting screw passes through the first adjustment seat and extends to one side of the first adjustment seat, one end of the adjusting screw is rotatably connected to a PU rubber stick, and the other end of the adjusting screw is threadedly connected to a reinforcing nut.

[0008] Preferably, a second adjustment seat is arranged below the first adjustment seat, a connecting plate is fixedly mounted on the second adjustment seat, and one end of the connecting plate away from the second adjustment seat is fixedly connected to the first adjustment seat.

[0009] Preferably, two mounting holes are provided on the second adjustment seat.

[0010] Preferably, two fixing bolts are provided on the mounting hole, and one end of the fixing bolt passes through the mounting hole and extends to one side of the mounting hole.

[0011] Preferably, an open washer is sleeved on the fixing bolt, a gasket is provided below the open washer, and the gasket is sleeved on the fixing bolt.

[0012] Preferably, the open washer and the gasket are both arranged above the second adjustment seat.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. The utility model rotates two adjustment screws, which are threadedly engaged with the two threaded holes on the first adjustment seat, to drive the two PU rubber sticks to move up and down, thereby being able to adjust the tightness of the damping device and the folding arm crane according to different needs. The reinforced nut can prevent the connection from loosening, ensuring that the connection between the adjustment screw and the first adjustment seat is still firm and reliable under vibration, impact or dynamic load conditions, and the PU rubber stick also has a certain elasticity and recovery ability, which can maintain good performance in repeated movements and reduce the decline in damping effect caused by long-term use. During the movement of the folding arm crane, the PU rubber stick can absorb impact energy, reduce collisions and vibrations between components, thereby reducing wear and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 The overall structural diagram provided by the utility model;

[0017] Figure 2 The utility model provides Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 An exploded view of a portion of the structure provided by the utility model;

[0019] Figure 4 The utility model provides a side view of the overall structure.

[0020] In the figure, 1. first adjustment seat; 2. threaded hole; 3. adjustment screw; 4. PU glue stick; 5. reinforcement nut; 6. second adjustment seat; 7. connecting plate; 8. mounting hole; 9. fixing bolt; 10. open washer; 11. gasket. DETAILED DESCRIPTION

[0021] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] like Figure 1-Figure 4 As shown, the damping device of the folding arm crane provided in this embodiment includes a first adjustment seat 1, two threaded holes 2 are provided on the first adjustment seat 1, and an adjusting screw 3 is threadedly connected to the threaded hole 2. The adjusting screw 3 passes through the first adjustment seat 1 and extends to one side of the first adjustment seat 1, and one end of the adjusting screw 3 is rotatably connected to a PU glue stick 4, and the other end of the adjusting screw 3 is threadedly connected to a reinforcing nut 5. By rotating the two adjusting screws 3, the two adjusting screws 3 are threadedly engaged with the two threaded holes 2 on the first adjustment seat 1, driving the two PU glue sticks 4 to move up and down, thereby being able to adjust the tightness of the damping device and the folding arm crane according to different needs, and the reinforcing nut 5 can prevent the connection from loosening, ensuring that the connection between the adjusting screw 3 and the first adjustment seat 1 is still firm and reliable under vibration, impact or dynamic load, and the PU glue stick 4 also has a certain elasticity and recovery ability, and can maintain good performance in repeated movements, reducing the decline in damping effect caused by long-term use. During the movement of the folding arm crane, the PU glue stick 4 can absorb impact energy, reduce collision and vibration between components, thereby reducing wear and extending the service life of the equipment.

[0023] Further, such as Figure 1-Figure 4 As shown, a second adjustment seat 6 is arranged below the first adjustment seat 1, and a connecting plate 7 is fixedly installed on the second adjustment seat 6. The end of the connecting plate 7 away from the second adjustment seat 6 is fixedly connected to the first adjustment seat 1. The first adjustment seat 1 and the second adjustment seat 6 can be firmly connected together through the connecting plate 7, which can enhance the overall rigidity and strength of the damping device and improve its stability.

[0024] Further, such as Figure 1-Figure 4 As shown, two mounting holes 8 are provided on the second adjustment seat 6, and two fixing bolts 9 are arranged on the mounting holes 8. One end of the fixing bolt 9 passes through the mounting hole 8 and extends to one side of the mounting hole 8. The damping device can be fixed on the folding arm crane by the fixing bolt 9 passing through the mounting hole 8 to prevent the damping device from relative displacement during operation.

[0025] Further, such as Figure 1-Figure 4As shown, an open washer 10 is sleeved on the fixing bolt 9, and a gasket 11 is arranged below the open washer 10. The gasket 11 is sleeved on the fixing bolt 9. The open washer 10 and the gasket 11 are both arranged above the second adjusting seat 6. The open washer 10 can be embedded in the surface of the gasket 11 when tightened to increase friction and prevent the fixing bolt 9 from loosening. The gasket 11 can increase the contact area between the fixing bolt 9 and the second adjusting seat 6, so that the connection between the fixing bolt 9 and the second adjusting seat 6 is more stable.

[0026] like Figure 1-Figure 4 As shown, the principle of the damping device of the folding arm crane provided in this embodiment is as follows:

[0027] The damping device is fixed on the folding arm crane by fixing bolts 9. The open washers 10 and gaskets 11 can prevent the fixing bolts 9 from loosening. The two adjusting screws 3 are rotated, and the two adjusting screws 3 are threadedly screwed with the two threaded holes 2 on the first adjusting seat 1, driving the two PU rubber sticks 4 to move up and down, so that the tightness of the damping device and the folding arm crane can be adjusted according to different needs. The reinforcing nut 5 can prevent the connection from loosening, ensuring that the connection between the adjusting screw 3 and the first adjusting seat 1 is still firm and reliable under vibration, impact or dynamic load, and the PU rubber stick 4 also has a certain elasticity and recovery ability, which can maintain good performance in repeated movements and reduce the decline in damping effect caused by long-term use. During the movement of the folding arm crane, the PU rubber stick 4 can absorb impact energy, reduce collisions and vibrations between components, thereby reducing wear and extending the service life of the equipment.

[0028] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0029] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0030] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A damping device for a folding arm crane, comprising a first adjustment seat (1), characterized in that: The first adjustment seat (1) is provided with two threaded holes (2), and an adjustment screw (3) is threadedly connected to the threaded hole (2). The adjustment screw (3) passes through the first adjustment seat (1) and extends to one side of the first adjustment seat (1), and one end of the adjustment screw (3) is rotatably connected to a PU glue stick (4), and the other end of the adjustment screw (3) is threadedly connected to a reinforcement nut (5).

2. The damping device of a folding arm crane according to claim 1, characterized in that: A second adjustment seat (6) is arranged below the first adjustment seat (1), a connecting plate (7) is fixedly mounted on the second adjustment seat (6), and an end of the connecting plate (7) away from the second adjustment seat (6) is fixedly connected to the first adjustment seat (1).

3. The damping device of a folding arm crane according to claim 2, characterized in that: The second adjustment seat (6) is provided with two mounting holes (8).

4. The damping device of a folding arm crane according to claim 3, characterized in that: Two fixing bolts (9) are arranged on the mounting hole (8), and one end of the fixing bolt (9) passes through the mounting hole (8) and extends to one side of the mounting hole (8).

5. The damping device of a folding arm crane according to claim 4, characterized in that: An open washer (10) is sleeved on the fixing bolt (9), a gasket (11) is arranged below the open washer (10), and the gasket (11) is sleeved on the fixing bolt (9).

6. The damping device of a folding arm crane according to claim 5, characterized in that: The open washer (10) and the gasket (11) are both arranged above the second adjustment seat (6).

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