Suspension arm assembling device

Abstract

The utility model relates to the technical field of lazy arm assembling, and discloses a lazy arm assembling device which is used for assembling a first lazy arm and a second lazy arm and comprises a fixing mechanism used for supporting one side of the first lazy arm; the lifting mechanism is used for adjusting the height of the first lifting arm; the adjusting mechanism is arranged on the fixing mechanism and used for adjusting the axial deflection angle of the first lifting arm and the deflection distance of the first lifting arm in the horizontal direction; and the RGV assembly trolley is used for driving the second suspension arm to be assembled with the first suspension arm. According to the suspension arm assembly device, high-precision and high-efficiency assembly of the first suspension arm and the second suspension arm is achieved, various postures of suspension arm assembly are comprehensively covered, the suspension arm assembly device can be widely suitable for assembly requirements of various suspension arms, assistance of extra power equipment such as a travelling crane is not needed in the assembly process, and the assembly efficiency is improved. Therefore, the labor intensity of operators is effectively reduced, and the risk of safe operation is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of boom assembly, and particularly relates to a boom assembly device. BACKGROUND

[0002] The boom system of the crane adopts a multi-stage boom design and is connected through precise transition sliding blocks. The gap value between the sliding blocks has an important influence on the overall performance and assembly difficulty of the boom system. In theory, the smaller the gap value between the sliding blocks, the higher the stability of the boom system during operation, which can significantly improve the precision and safety of the lifting operation.

[0003] Although a smaller gap value between the sliding blocks can significantly improve the stability of the boom system, it greatly increases the assembly difficulty. In the prior art, in order to cope with this challenge, it is often necessary to adopt methods such as adjusting the height of the boom, manually adjusting multiple times, or using other power-assisted devices such as a traveling crane for auxiliary adjustment. However, these methods are not only cumbersome to operate, but also often difficult to ensure the precision and efficiency of assembly, are prone to errors, affect the overall performance of the boom system, and have the defects of low assembly precision and low efficiency. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the application is to provide a boom assembly device, which solves the defects of low precision and low efficiency in the prior art by adopting methods such as adjusting the height of the boom, manually adjusting multiple times, or using other power-assisted devices such as a traveling crane for auxiliary adjustment.

[0005] In order to achieve the above-mentioned purpose, the application provides a boom assembly device for assembling a first boom and a second boom, which comprises:

[0006] A fixing mechanism for supporting one side of the first boom;

[0007] A lifting mechanism for adjusting the height of the first boom;

[0008] An adjusting mechanism arranged in the fixing mechanism for adjusting the axial deflection angle of the first boom and the deflection distance of the first boom in the horizontal direction;

[0009] An RGV assembly trolley for driving the second boom to be assembled with the first boom.

[0010] In some embodiments, the lifting mechanism comprises at least two lifting pieces.

[0011] In some embodiments, the lifting pieces and the adjusting mechanism are both telescopic oil cylinders, or the lifting pieces and the adjusting mechanism are both air cylinders.

[0012] In some embodiments, the lifting member away from the fixing mechanism further comprises a self-resetting slewing bearing for adjusting the deflection distance of the first lifting arm in the horizontal direction away from one side of the fixing mechanism.

[0013] In some embodiments, the adjusting mechanism comprises a moving member and a connecting member, and the lifting mechanism further comprises a base provided on one side of the lifting member for connecting with the first lifting arm, and the base is provided with a V-shaped opening.

[0014] In some embodiments, the adjusting mechanism comprises a moving member and a connecting member, and the moving member is provided on the fixing mechanism, and the connecting member is connected with the moving member at both ends, and the connecting member is used for lifting the first lifting arm, and the height difference of the moving member is adjusted to drive the connecting member to adjust the axial deflection angle of the first lifting arm.

[0015] In some embodiments, the adjusting mechanism further comprises a track provided on the fixing mechanism, and the moving member is provided on the track and moves along the track to drive the first lifting arm to adjust the deflection distance in the horizontal direction.

[0016] In some embodiments, the number of moving members comprises at least two.

[0017] In some embodiments, the RGV assembly trolley is provided with an RGV track at the bottom, and the RGV assembly trolley moves along the RGV track to drive the second lifting arm to move and assemble with the first lifting arm.

[0018] In some embodiments, the RGV assembly trolley is provided with a V-shaped opening seat for embedding the second lifting arm.

[0019] Through the above technical solutions, the lifting mechanism adjusts the height of the first lifting arm, the adjusting mechanism adjusts the axial deflection angle and the deflection distance in the horizontal direction of the first lifting arm, ensures that the posture and position of the first lifting arm meet the assembly requirements, and the RGV assembly trolley drives the second lifting arm to move and assemble with the first lifting arm, realizing high-precision and high-efficiency assembly of the first lifting arm and the second lifting arm.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope, and other related drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0022] Figure 1Fig. 1 schematically shows a front view of a boom assembly device according to an embodiment of the present application;

[0023] Figure 2 Fig. 3 schematically shows a structure diagram of a lifting mechanism according to an embodiment of the present application;

[0024] Figure 3 Fig. 4 schematically shows a structure diagram of an adjusting mechanism according to an embodiment of the present application;

[0025] Figure 4 Fig. 5 schematically shows a top view of a boom assembly device according to an embodiment of the present application.

[0026] Legend of Signs:

[0027] Reference Name Reference Name 101 First jib 102 Second jib 200 Fixing mechanism 300 Lifting mechanism 301 Lifting piece 302 Base 303 Reset slewing bearing 400 Adjusting mechanism 401 Moving piece 402 Connecting piece 403 Track 500 RGV assembly trolley 501 RGV track DETAILED DESCRIPTION

[0028] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory and are not intended to limit the present application.

[0029] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.

[0030] In the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] In this application, unless specifically defined otherwise, the terms "mounting", "connected", "connection", "fixed", and the like should be construed broadly and do not necessarily mean fixed connection, but can also mean removable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0033] The boom assembly device provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.

[0034] Figure 1 The front view of the boom assembly device according to the embodiment of the present application is schematically shown. As shown in the figure, Figure 1 The boom assembly device of the embodiment of the present application is used for assembling the first boom 101 and the second boom 102, and comprises:

[0035] The fixing mechanism 200 is used for supporting one side of the first boom 101;

[0036] The lifting mechanism 300 is used for adjusting the height of the first boom 101;

[0037] The adjusting mechanism 400 is arranged on the fixing mechanism 200 and is used for adjusting the axial deflection angle of the first boom 101 and the deflection distance of the first boom 101 in the horizontal direction;

[0038] The RGV assembly trolley 500 is used for driving the second boom 102 to assemble with the first boom 101.

[0039] The fixing mechanism 200 is a headstock, and the fixing mechanism 200 can be fixed on the assembly operation table. The fixing mechanism 200 is arranged in close contact with the first boom 101 during use and is used for supporting one side of the first boom 101. The adjusting mechanism 400 is arranged above the fixing mechanism 200. The fixing mechanism 200 provides a reliable fulcrum for the first boom 101 through a solid structure and stable support. At the same time, the fixing mechanism 200 can also effectively absorb and disperse various forces generated during assembly, thereby ensuring the assembly precision and stability of the first boom 101 and the second boom 102.

[0040] The jib assembly device provided by the embodiment of the present application ensures the stability of the jib during the assembly process through the fixing mechanism 200, the lifting mechanism 300 allows the height of the first jib 101 in the vertical direction to be adjusted according to actual needs, and the adjusting mechanism 400 further fine-tunes the axial deflection angle and the deflection distance in the horizontal direction of the first jib 101, so that the jib assembly efficiency is greatly improved under the joint action of these functions. The introduction of the RGV assembly trolley 500 enables the second jib 102 to be flexibly and accurately moved to the predetermined assembly position with the first jib 101. The jib assembly device provided by the embodiment of the present application covers all postures of the jib assembly process and can basically adapt to the assembly of all types of jibs, and the assembly process does not require the assistance of a crane or other power equipment, thereby reducing the operation intensity and the safety operation risk.

[0041] In an embodiment of the present application, please refer to Figure 2 , Figure 2 The structure of the lifting mechanism according to the embodiment of the present application is schematically shown. As Figure 2 shown, the lifting mechanism 300 includes at least two lifting pieces 301, and the height of the first jib 101 is adjusted through the lifting pieces 301. Among them, considering that the length of the first jib 101 is relatively long, it is necessary to ensure that the first jib 101 can be stably lifted under the action of the lifting mechanism 300, so the lifting mechanism 300 includes at least two lifting pieces 301 distributed at the bottom of both ends of the first jib 101. Through the cooperative work of the at least two lifting pieces 301, the height of the first jib 101 is accurately adjusted, and stable and efficient support is provided for the assembly process of the jib.

[0042] In an embodiment of the present application, the lifting piece 301 and the adjusting mechanism 400 are both telescopic oil cylinders, or the lifting piece 301 and the adjusting mechanism 400 are both air cylinders. The telescopic oil cylinder or air cylinder usually has high-precision and high-stability lifting capacity. The telescopic oil cylinder or air cylinder realizes smooth telescopic movement through the internal hydraulic or pneumatic system, so as to ensure that the first jib 101 can maintain a stable posture and accurate height during lifting. The lifting piece 301 can also be a pulley block or a double-column lifting mechanism.

[0043] In an embodiment of the present application, the lifting piece 301 away from the fixing mechanism 200 further includes a self-resetting slewing bearing 303, and the self-resetting slewing bearing 303 is used for adjusting the deflection distance in the horizontal direction of the side of the first jib 101 away from the fixing mechanism 200.

[0044] When external force acts on the side of the first boom 101 close to the fixing mechanism 200, the side of the first boom 101 close to the fixing mechanism 200 is twisted, the self-resetting slewing bearing 303 can bear and transmit the torque, and the self-resetting slewing bearing 303 is used as a fulcrum to twist the first boom 101 in the horizontal direction, so as to maintain the stability and reliability of the overall structure of the first boom 101. When the external force disappears or weakens to a certain extent, the self-resetting slewing bearing 303 can automatically return to the original initial position without twisting by using the restoring force of the elastic material. The boom assembly device according to the embodiment of the application adjusts the deflection distance of the first boom 101 in the horizontal direction according to the deflection distance adjustment formula of the first boom 101 in the horizontal direction, and the deflection distance adjustment formula of the first boom 101 in the horizontal direction includes:

[0045]

[0046] In the above formula, D2 represents the horizontal deflection distance of the side of the first boom 101 adjacent to the second boom 102, L w represents the distance from the side of the first boom 101 adjacent to the second boom 102 to the center point of the self-resetting slewing bearing 201, L represents the length of the first boom 101, and D1 represents the horizontal deflection distance of the side of the first boom 101 away from the fixing mechanism 200.

[0047] In an embodiment of the application, the lifting mechanism 300 further includes a base 302 provided on the side of the lifting piece 301 connected with the first boom 101, and the base 302 is provided with a V-shaped opening. The base 302 is provided on the top of the lifting piece 301, and the V-shaped opening is designed to enable the bottom of the first boom 101 to be closely embedded in the base 302, so that there is no relative displacement between the cylinder of the first boom 101 and the base 302 provided with the V-shaped opening, and the design of the V-shaped opening seat reduces the contact area between the first boom 101 and the base 302 provided with the V-shaped opening, so as to prevent the paint film on the surface of the first boom 101 from being damaged due to the existence of relative displacement or excessive contact area.

[0048] In an embodiment of the application, please refer to Figure 3 , Figure 3 a structural schematic view of the adjusting mechanism according to the embodiment of the application is shown schematically. As Figure 3 shown, the adjusting mechanism 400 includes a moving piece 401 and a connecting piece 402, the moving piece 401 is provided on the fixing mechanism 200, the connecting piece 402 is connected with the moving piece 401 at both ends, and the connecting piece 402 is used for lifting the first boom 101, so as to adjust the axial deflection angle of the first boom 101 by adjusting the height difference of the moving piece 401.

[0049] As Figure 3As shown in the left figure, the two moving parts 401 are at the same vertical height, meaning there is no height difference between them, and correspondingly, there is no axial deflection angle on the first boom 101. Figure 3 As shown in the right figure, the two moving parts 401 are not at the same vertical height, that is, when there is a height difference between the two moving parts 401, in this case, the first boom 101 tilts towards the side with less force. Under the action of the gravity of the first boom 101 and the friction between the first boom 101 and the connecting part 402, and because the first boom 101 is a rigid connection structure, the first boom 101 can achieve synchronous axial rotation of the entire structure. The connecting part 402 is a sling. To ensure that the sling is fully stressed to increase the friction of the first boom 101 rotation, the vertical height of the lifting mechanism 300 needs to be slightly reduced. The boom assembly device of this application adjusts the axial deflection angle of the first boom 101 according to the adjustment formula of the axial deflection angle of the first boom 101. The adjustment formula of the axial deflection angle of the first boom 101 includes:

[0050] α = arc tan(h / 2r)

[0051] In the above formula, α represents the axial deflection angle of the first boom 101, h represents the height difference between the two moving parts 401, and r represents the radius of the first boom 101. The adjustment range of the axial deflection angle is set to 0° to 5°.

[0052] In one embodiment of this application, please refer to the following: Figure 4 , Figure 4 A schematic top view of a boom assembly device according to an embodiment of this application is shown. Figure 4 As shown, the adjustment mechanism 400 also includes a track 403, which is located on the fixed mechanism 200. The moving part 401 is located on the track 403 and moves along the track 403 to drive the first boom 101 to adjust the deflection distance in the horizontal direction.

[0053] The track 403 is horizontally positioned above the side of the fixed mechanism 200 that is close to the first boom 101. When the moving part 401 moves horizontally along the track 403, the connecting part 402 will correspondingly drag the side of the first boom 101 that is close to the fixed mechanism 200, thereby realizing the adjustment of the deflection distance of the first boom 101 in the horizontal direction.

[0054] In an embodiment of the present application, the number of the moving pieces 401 is at least two. It is worth noting that the at least two moving pieces 401 are distributed equidistantly and equihorizontally on the fixing mechanism 200 on one side of the first boom 101, so as to ensure that the two or more moving pieces 401 can provide more uniform support and tension distribution, thereby enhancing the stability of the first boom 101 during the adjustment process. It is worth noting that, in order to ensure the stability during the adjustment process, the number of the moving pieces 401 needs to be even, and the moving pieces 401 are equally divided on the fixing mechanism 200.

[0055] In an embodiment of the present application, the RGV assembly trolley 500 is provided with an RGV track 501 at the bottom, and the RGV assembly trolley 500 moves along the RGV track 501 to drive the second boom 102 to move and combine with the first boom 101.

[0056] In an embodiment of the present application, the RGV assembly trolley 500 is provided with an RGV track 501 at the bottom, and the RGV assembly trolley 500 moves along the RGV track 501 to drive the second boom 102 to move and combine with the first boom 101.

[0057] In an embodiment of the present application, the RGV assembly trolley 500 is provided with a V-shaped opening seat for embedding the second boom 102. The V-shaped opening seat is designed to reduce the contact area between the second boom 102 and the V-shaped opening seat, so as to prevent the paint film on the surface of the second boom 102 from being damaged due to relative displacement or excessive contact area.

[0058] In addition, it is worth noting that all the elements described as at least two in the embodiments of the present application are only schematically shown as two in the drawings, and the specific number can be set according to actual needs to better achieve the corresponding technical effects, which are not limited in the present application.

[0059] In order to further explain the boom assembly device provided in the embodiments of the present application, the use method of the boom assembly device provided in the embodiments of the present application is described below.

[0060] The first boom 101 is a small arm, and the second boom 102 is a large arm, i.e., the diameter of the second boom 102 is greater than that of the first boom 101. Both the first boom 101 and the second boom 102 are transversely arranged along the length direction, and the second boom 102 is arranged on one side of the first boom 101.

[0061] Step one, according to the height difference of the first boom 101 and the second boom 102 in the vertical direction, the two lifting mechanisms 301 are synchronously adjusted to rise or fall by the driving motor until the first boom 101 and the second boom 102 are at the same vertical height.

[0062] Step two, according to the deflection distance of the first boom 101 and the second boom 102 in the horizontal direction and the deflection distance adjustment formula of the first boom 101 in the horizontal direction, the position of the moving part 401 on the track 403 is adjusted by the driving motor, so that the connecting part 402 and the self-resetting slewing bearing 303 drive the first boom 101 to adjust the axial deflection angle, until the central axis of the first boom 101 along the length direction and the central axis of the second boom 102 along the length direction are on the same straight line.

[0063] Step three, after the above adjustment of the height difference in the vertical direction and the deflection distance in the horizontal direction, the axial deflection angle between the first boom 101 and the second boom 102 is adjusted. The driving motor synchronously drives at least two lifting mechanisms 300 to slightly lower in the vertical direction, so that the connecting part 402 is fully stressed to increase the friction of the first boom 101 rotating. The driving motor drives the two moving parts 401 to move in the vertical direction to adjust the height difference between the two moving parts 401. When the two moving parts 401 have a certain height difference, the first boom 101 is subjected to unbalanced force during operation, and the first boom 101 is subjected to the action of its own gravity and the friction between the connecting part 402, which tends to tilt to the side with relatively small stress. The axial deflection angle of the first boom 101 is adjusted by the axial deflection angle adjustment formula of the first boom 101.

[0064] Step four, when the axial deflection angle of the first boom 101 is accurately adjusted and the axial deflection angle of the first boom 101 is consistent with the axial deflection angle of the second boom 102, the first boom 101 and the second boom 102 enter the key stage of assembly. At this time, the RGV assembly trolley 500 moves towards the first boom 101 at a stable and accurate speed under the command of the control system. The second boom 102 advances towards the first boom 101 under the action of strong mechanical force and accurate control, realizing seamless and firm assembly of the first boom 101 and the second boom 102.

[0065] The above describes the optional embodiments of the application in detail in combination with the drawings, but the application is not limited to the specific details in the above embodiments. Within the technical concept range of the application, the technical solutions of the application can be subjected to various simple modifications, and these simple modifications all belong to the protection range of the application.

[0066] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0067] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

[0068] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the embodiments of the present application.

[0069] In addition, various different embodiments of the embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the embodiments of the present application, it should also be considered as disclosed by the embodiments of the present application.

Claims

1. A boom assembly apparatus, characterized by, The application discloses a first boom (101) and a second boom (102) are assembled by a boom assembling device. A fixing mechanism (200) is arranged on one side of the first boom (101) to support the first boom (101). A lifting mechanism (300) is arranged on the fixing mechanism (200) to adjust the height of the first boom (101). An adjusting mechanism (400) is arranged on the fixing mechanism (200) to adjust the axial deflection angle of the first boom (101) and the deflection distance of the first boom (101) in the horizontal direction. An RGV assembling trolley (500) is arranged to drive the second boom (102) to assemble with the first boom (101).

2. The boom assembly of claim 1, wherein, The lifting mechanism (300) comprises at least two lifting members (301).

3. The boom assembly of claim 2, wherein, The lifting member (301) and the adjusting mechanism (400) are telescopic oil cylinders, or the lifting member (301) and the adjusting mechanism (400) are air cylinders.

4. The boom assembly of claim 2, wherein, The lifting member (301) away from the fixing mechanism (200) further comprises a self-resetting slewing bearing (303) arranged to adjust the deflection distance of the first boom (101) away from the fixing mechanism (200) in the horizontal direction.

5. The boom assembly of claim 2, wherein, The lifting mechanism (300) further comprises a base (302) arranged on the side of the lifting member (301) connected with the first boom (101), and the base (302) is provided with a V-shaped opening.

6. The boom assembly of claim 1, wherein, The adjusting mechanism (400) comprises a moving member (401) arranged on the fixing mechanism (200) and a connecting member (402) connected with the moving member (401) at both ends, the connecting member (402) is arranged to hoist the first boom (101), the height difference of the moving member (401) is adjusted to drive the connecting member (402) to adjust the axial deflection angle of the first boom (101).

7. The boom assembly of claim 6, wherein, The adjusting mechanism (400) further comprises a track (403) arranged on the fixing mechanism (200), and the moving member (401) is arranged on the track (403) and moves along the track (403) to drive the first boom (101) to adjust the deflection distance in the horizontal direction.

8. The boom assembly of claim 6, wherein, The number of the moving member (401) is at least two.

9. The boom assembly of claim 1, wherein, The RGV assembling trolley (500) is provided with an RGV track (501) at the bottom, and the RGV assembling trolley (500) moves along the RGV track (501) to drive the second boom (102) to move and assemble with the first boom (101).

10. The boom assembly of claim 1, wherein, The RGV assembling trolley (500) is provided with a V-shaped opening seat arranged to embed the second boom (102).

Images