An adjustable counterbalanced boom

By introducing an electric push rod and threaded rod system into the lifting beam, multi-point clamping and balance adjustment of the machine tool can be achieved, solving the problem of the machine tool slipping off the lifting beam during the lifting process and improving the stability and safety of the lifting beam.

CN224493472UActive Publication Date: 2026-07-14SHAN DONG TONGYONG PRECISION MASCH TOOL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAN DONG TONGYONG PRECISION MASCH TOOL CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing adjustable balance beams are prone to swaying when lifting precision machine tools, causing the machine tools to slip off from the front and rear ends, resulting in damage and safety hazards.

Method used

An adjustable balance lifting beam was designed, which achieves multi-point clamping of the machine tool through an electric push rod and threaded rod system. Combined with motor drive to adjust the height and position of the L-shaped support plate, the stability of the machine tool is ensured during lifting, and the balance is maintained by a balance hook.

Benefits of technology

This effectively prevents the machine tool from slipping from both ends during lifting, improving the performance and safety of the lifting beam, and enhancing its functionality and adaptability.

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    Figure CN224493472U_ABST
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Abstract

The utility model discloses a adjustable balance crane beam belongs to crane beam technical field, including fixed plate and mounting plate, fixed plate bottom is equipped with the mounting plate, the mounting plate bottom is equipped with two one -way chutes, one -way chute inside is equipped with one -way sliding block, one -way sliding block bottom fixedly connected with the support, and the support is equipped with two -way chutes inside, two -way chute inside is equipped with two -way sliding block, and two -way sliding block one end fixedly connected with L type support plate, and L type support plate inboard fixedly connected with electric push rod, and electric push rod output end fixedly connected with the clamping plate, adjust the position of two -way sliding block in two -way chute inside, make the height of L type support plate adjust, make one -way sliding block move in one -way chute inside, and L type support plate will lathe left and right two ends clamping, start electric push rod simultaneously, make the clamping plate will lathe front and back two ends clamping, avoid after lifting lathe from front and back two ends and slide down, cause lathe's damage and produce the phenomenon of security hidden danger's occurrence, promote the use effect of crane beam.
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Description

Technical Field

[0001] This utility model belongs to the field of suspension beam technology, specifically relating to an adjustable balance suspension beam. Background Technology

[0002] A lifting beam (including the load-bearing beam and connecting rigging) is a specialized horizontal beam lifting device used for lifting and transporting objects. The lifting beam is designed according to the General Technical Conditions for Machinery Industry of the People's Republic of China JB / T5000.1-5000.15-1998. This horizontal beam lifting device achieves the lifting and transport of objects, featuring a simple and reasonable structure, flexible operation, convenient use, and safe and reliable lifting operation.

[0003] An adjustable balance beam, as disclosed in publication number CN202121242537.0, comprises: a mounting cavity formed on a mounting plate; two pull rings fixedly mounted on the mounting plate; a chain disposed on the pull rings; a hook fixedly mounted on the mounting plate; two first threaded rods rotatably mounted within the mounting cavity, with one end of each first threaded rod extending outside the mounting cavity; two mounting plates threadedly mounted on the first threaded rods; and two support plates disposed on corresponding first threaded rods.

[0004] The aforementioned adjustable balance lifting beam still has certain drawbacks. When lifting precision machine tools, the support plate and mounting plate can clamp the left and right ends of the machine tool. However, after the machine tool is lifted, the lifting beam and the machine tool sway in the air and are prone to slipping off from the front and rear ends, causing damage to the machine tool and creating safety hazards, thus reducing the effectiveness of the lifting beam. Therefore, we propose an adjustable balance lifting beam. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable balance lifting beam to solve the problem mentioned in the background art that after the machine tool is lifted, the lifting beam and the machine tool sway in the air and are prone to slipping off from the front and rear ends, causing damage to the machine tool and creating safety hazards, thus reducing the effectiveness of the lifting beam.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable balance beam, comprising a fixed plate and an mounting plate, wherein a fixed hook is fixedly connected to the top center of the fixed plate, and a lifting lug is fixedly connected to each of the two sides of the top of the fixed plate; the mounting plate is provided at the bottom of the fixed plate, and the mounting plate has two first sliding grooves at the bottom of the mounting plate; a first slider is provided inside the first sliding groove, and the first slider is movably connected inside the first sliding groove; a support rod is fixedly connected to the bottom of the first slider, and a second sliding groove is provided inside the support rod; a second slider is provided inside the second sliding groove, and the second slider is movably connected inside the second sliding groove; an L-shaped support plate is fixedly connected to one end of the second slider, and an electric push rod is fixedly connected to the inner side of the L-shaped support plate; a clamping plate is fixedly connected to the output end of the electric push rod.

[0007] Preferably, a threaded rod is provided inside the first slide groove, the threaded rod is rotatably connected inside the first slide groove, the first slider is connected to the threaded rod by a thread, and a motor is provided at one end of the threaded rod.

[0008] Preferably, the second slide groove is provided with a second threaded rod, which is rotatably connected inside the second slide groove. The second slider and the second threaded rod are connected by threads, and a second motor is provided at one end of the second threaded rod.

[0009] Preferably, the inner side of the support rod, the upper surface of the L-shaped support plate, and the surface of the clamping plate are all provided with anti-slip protrusions, and there are multiple anti-slip protrusions.

[0010] Preferably, a No. 3 motor is fixedly connected inside the fixing plate, and a turntable is fixedly connected to the bottom output end of the No. 3 motor, and the turntable is fixedly connected to the top of the mounting plate.

[0011] Preferably, a top plate is fixedly connected to both ends of the fixing plate, and two balance hooks are fixedly connected to the bottom of the top plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By adjusting the position of the second slider inside the second slide groove, the height of the L-shaped support plate is adjusted, allowing the first slider to move inside the first slide groove. The L-shaped support plate clamps the left and right ends of the machine tool. At the same time, the electric push rod is activated, causing the clamping plate to clamp the front and rear ends of the machine tool. This prevents the machine tool from slipping off from the front and rear ends after being lifted, thus avoiding damage to the machine tool and safety hazards, and improving the performance of the lifting beam.

[0014] 2. By using two motors to drive two threaded rods to rotate, the two sliders can move within two grooves, facilitating the adjustment of the height and position of the L-shaped support plate. Starting motor number three causes the turntable to rotate the mounting plate, enabling the machine tool to rotate. Adjusting the angle can adapt to different placement requirements, thus enhancing the functionality of the lifting beam. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the fixing plate of this utility model.

[0018] In the diagram: 1. Fixed plate; 2. Mounting plate; 3. Fixed hook; 4. Lifting lug; 5. No. 1 slide rail; 6. No. 1 slider; 7. Support rod; 8. No. 2 slide rail; 9. No. 2 slider; 10. L-shaped support plate; 11. Electric push rod; 12. Clamping plate; 13. No. 1 threaded rod; 14. No. 1 motor; 15. No. 2 threaded rod; 16. No. 2 motor; 17. No. 3 motor; 18. Turntable; 19. Top plate; 20. Balance hook. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides an adjustable balance beam technical solution: it includes a fixed plate 1 and an mounting plate 2. A fixed hook 3 is fixedly connected to the top center of the fixed plate 1, and a lifting lug 4 is fixedly connected to each of the top two sides of the fixed plate 1. The mounting plate 2 is provided at the bottom of the fixed plate 1. The bottom of the mounting plate 2 is provided with two first sliding grooves 5. A first slider 6 is provided inside the first sliding groove 5. The first slider 6 is movably connected inside the first sliding groove 5. A support rod 7 is fixedly connected to the bottom of the first slider 6. A second sliding groove 8 is provided inside the support rod 7. A second slider 9 is provided inside the second sliding groove 8. The second slider 9 is movably connected inside the second sliding groove 8. One end of the second slider 9 is fixedly connected to... L-shaped support plate 10, with electric push rod 11 fixedly connected to the inner side of L-shaped support plate 10. Clamping plate 12 is fixedly connected to the output end of electric push rod 11. Adjust the position of the second slider 9 inside the second slide groove 8 to adjust the height of L-shaped support plate 10. After adjustment, by placing the precision machine tool on the two L-shaped support plates 10, the first slider 6 moves inside the first slide groove 5. L-shaped support plate 10 clamps the left and right ends of the machine tool. At the same time, start electric push rod 11 to clamp clamping plate 12 to clamp the front and rear ends of the machine tool. This prevents the machine tool from slipping from the front and rear ends after being lifted, thus avoiding damage to the machine tool and safety hazards, and improving the use effect of the lifting beam.

[0021] Specifically, a threaded rod 13 is provided inside the first slide groove 5. The threaded rod 13 is rotatably connected inside the first slide groove 5. The first slider 6 is connected to the threaded rod 13 by a thread. A motor 14 is provided at one end of the threaded rod 13.

[0022] Specifically, the second slide groove 8 is equipped with a second threaded rod 15, which is rotatably connected inside the second slide groove 8. The second slider 9 is connected to the second threaded rod 15 by a thread, and a second motor 16 is provided at one end of the second threaded rod 15.

[0023] Specifically, the inner side of the support rod 7, the upper surface of the L-shaped support plate 10, and the surface of the clamping plate 12 are all provided with anti-slip protrusions. There are multiple anti-slip protrusions. When in use, the anti-slip protrusions can increase the coefficient of friction with the machine tool and improve the stability during lifting operations.

[0024] Specifically, a No. 3 motor 17 is fixedly connected inside the fixed plate 1, and a turntable 18 is fixedly connected to the bottom output end of the No. 3 motor 17. The turntable 18 is fixedly connected to the top of the mounting plate 2.

[0025] Specifically, a top plate 19 is fixedly connected to both ends of the fixed plate 1, and two balance hooks 20 are fixedly connected to the bottom of the top plate 19. The balance hooks 20 can be used to hang weight blocks to keep the two ends balanced and ensure the balance when lifting.

[0026] In this implementation plan, when using the lifting beam, the position of the second slider 9 inside the second slide groove 8 is adjusted by starting the drive device through the control panel according to the height of the machine tool. This allows the height of the L-shaped support plate 10 to be adjusted. After adjustment, the precision machine tool is placed on the two L-shaped support plates 10, and the first slider 6 moves inside the first slide groove 5. The L-shaped support plate 10 clamps the left and right ends of the machine tool. At the same time, the electric push rod 11 is activated, and the clamping plate 12 clamps the front and rear ends of the machine tool. This prevents the machine tool from slipping from the front and rear ends after being lifted, thus avoiding damage to the machine tool and safety hazards, and improving the effectiveness of the lifting beam.

[0027] By starting motor 14 and motor 16, which drive threaded rod 13 and threaded rod 15 to rotate respectively, slider 9 moves inside slide groove 8 and slider 6 moves inside slide groove 5, facilitating the height and position adjustment of L-shaped support plate 10. Starting motor 17 causes turntable 18 to rotate mounting plate 2, enabling the machine tool to rotate. The angle can be adjusted to meet different placement requirements, enhancing the functionality of the lifting beam. The balance hook 20 can be used to hang weight blocks to ensure balance during lifting.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable balance beam, comprising a fixed plate (1) and a mounting plate (2), characterized in that: A fixed hook (3) is fixedly connected to the top center of the fixed plate (1). A lifting lug (4) is fixedly connected to each side of the top of the fixed plate (1). An installation plate (2) is provided at the bottom of the fixed plate (1). Two first sliding grooves (5) are provided at the bottom of the installation plate (2). A first slider (6) is provided inside the first sliding groove (5). The first slider (6) is movably connected inside the first sliding groove (5). A support rod (7) is fixedly connected to the bottom of the first slider (6). A second sliding groove (8) is provided inside the support rod (7). A second slider (9) is provided inside the second sliding groove (8). The second slider (9) is movably connected inside the second sliding groove (8). An L-shaped support plate (10) is fixedly connected to one end of the second slider (9). An electric push rod (11) is fixedly connected to the inner side of the L-shaped support plate (10). A clamping plate (12) is fixedly connected to the output end of the electric push rod (11).

2. The adjustable balance beam according to claim 1, characterized in that: The first slide groove (5) is provided with a first threaded rod (13), which is rotatably connected inside the first slide groove (5). The first slider (6) is connected to the first threaded rod (13) by a thread. One end of the first threaded rod (13) is provided with a first motor (14).

3. An adjustable balance beam according to claim 1, characterized in that: The second slide groove (8) is provided with a second threaded rod (15), which is rotatably connected inside the second slide groove (8). The second slider (9) is connected to the second threaded rod (15) by a thread. One end of the second threaded rod (15) is provided with a second motor (16).

4. An adjustable balance beam according to claim 1, characterized in that: The inner side of the support rod (7), the upper surface of the L-shaped support plate (10), and the surface of the clamp plate (12) are all provided with anti-slip protrusions, and there are multiple anti-slip protrusions.

5. An adjustable balance beam according to claim 1, characterized in that: The fixing plate (1) is fixedly connected to a No. 3 motor (17), and the bottom output end of the No. 3 motor (17) is fixedly connected to a turntable (18), which is fixedly connected to the top of the mounting plate (2).

6. An adjustable balance beam according to claim 1, characterized in that: The fixed plate (1) is fixedly connected to a top plate (19) at both ends, and the bottom of the top plate (19) is fixedly connected to two balance hooks (20).