Hydraulic wrench lifting device

Abstract

The utility model relates to the technical field of lifting, in particular to a hydraulic wrench lifting device which is characterized in that a lifting module is mounted on a moving carrier, a rotary swing arm is mounted on the lifting module and used for driving the rotary swing arm to move up and down along the lifting module, and a hydraulic wrench is mounted at the working end of the rotary swing arm; adjacent support arms are connected through a rotary joint to form a rotary main arm, a hydraulic wrench connecting base is installed at one end of the rotary main arm, a hydraulic wrench is installed on the hydraulic wrench connecting base, an installation face is arranged at the other end of the rotary main arm, and the installation face is installed on a movable panel in the lifting module through a bolt. The hydraulic wrench does not need to be lifted manually, the multi-joint rotating swing arm is matched with the lifting module, the hydraulic wrench can be carried to flexibly reach different heights and different positions, adjustment is convenient, the reaction of workers is labor-saving, the low-speed and high-speed lifting function is achieved, the moving time is shortened, and the hydraulic wrench can be accurately aligned with each workpiece for operation; and the working efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting technology, and in particular to a hydraulic wrench lifting device. Background Technology

[0002] In modern industrial production, it is often necessary to assemble or disassemble various large parts, and hydraulic wrenches are widely used as a highly efficient tool.

[0003] However, in industries such as wind power, gearboxes are placed vertically, and installation requires workers to continuously lift hydraulic wrenches weighing over 28 kg to tighten nuts at heights ranging from 1.5 to 2.6 meters. The hydraulic wrenches themselves are very heavy, making it difficult for workers to move them flexibly to different working positions and to work continuously, resulting in high physical exertion and low efficiency. The vibrations generated during operation can adversely affect equipment and operators. Precise alignment of parts at different positions and angles is also difficult, leading to low work efficiency and impacting assembly or maintenance quality. Existing technologies have employed designs such as balance cranes, but these suffer from unstable lifting, swaying during horizontal movement, inconvenient installation of the hydraulic wrenches, and an inability to overcome the vibrations caused by the reaction force of the hydraulic wrenches. These technologies either fail to meet requirements or are too heavy to move effectively, hindering their practical application. Therefore, there is an urgent need for a hydraulic wrench lifting system that can solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: in order to solve the problems existing in the prior art in the background art, to provide a hydraulic wrench lifting device that solves the requirement of continuously lifting and aligning the hydraulic wrench with the nut, and continuously pushing the hydraulic wrench up and down for installation, thereby improving efficiency and reducing the labor intensity of workers.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a hydraulic wrench lifting device, including a mobile carrier, an execution unit installed on the mobile carrier, the execution unit including a lifting module and a rotating swing arm, the lifting module is installed on the mobile carrier, the rotating swing arm is installed on the lifting module, and is used to drive the rotating swing arm to move up and down along it, and a hydraulic wrench is installed at the working end of the rotating swing arm.

[0006] The rotating arm includes several arms, which are connected by rotating joints to form a rotating arm. One end of the rotating arm is equipped with a hydraulic wrench connecting base, and the hydraulic wrench is installed on the hydraulic wrench connecting base. The other end of the rotating arm is provided with a mounting surface, which is installed on the moving panel in the lifting module by bolts.

[0007] Furthermore, the hydraulic wrench connecting base includes an upper cover plate and a lower cover plate. The lower cover plate is installed on the support arm. After the upper cover plate and the lower cover plate are assembled, they are connected as one piece by the upper and lower cover plate connectors to form a receiving cavity. Several shock-absorbing springs are installed in the receiving cavity. There is a gap between the bottom of the upper cover plate and the inner bottom plate surface of the lower cover plate. The upper cover plate has a protrusion on its surface, and an opening is provided in the middle of the protrusion. A connecting stud for connecting the hydraulic wrench is installed in the opening.

[0008] Furthermore, adjustment holes are installed on all four sides of the top cover, and support components for holding the hydraulic wrench are installed on the adjustment holes.

[0009] Furthermore, the adjustment hole is an elongated hole or multiple round holes.

[0010] Furthermore, the top support assembly includes an adjusting mounting block, which is installed in an adjusting hole by adjusting bolts. The adjusting mounting block has a screw hole on its plate surface, and a handle bolt is installed in the screw hole, with the bolt end of the handle bolt facing the hydraulic wrench.

[0011] Furthermore, the top support assembly includes an adjusting bolt with a nut mounted on it, and a handle bolt with its bolt end facing the hydraulic wrench.

[0012] Furthermore, a clamp is installed on the top cover plate, through which the hydraulic wrench is mounted.

[0013] Furthermore, the lifting module includes a bracket, which is vertically positioned between the bracket and the movable carrier. A fixed slide rail is mounted on the working plate of the bracket, and a movable panel is mounted on the fixed slide rail via a slider assembly. A servo motor and a rotary swing arm are mounted on the movable panel to drive the movable panel to slide on the fixed slide rail.

[0014] Furthermore, a transmission system is installed on the bracket, and a servo motor is connected to the transmission system to drive the moving panel to rise and fall on the fixed slide rail.

[0015] Furthermore, the mobile carrier is also equipped with a power unit, a control module, and an auxiliary system. The power unit is connected to the hydraulic wrench via pipelines to provide working power to the hydraulic wrench. One end of the auxiliary system is connected to the power unit, and the other end of the auxiliary system is connected to a DC power supply.

[0016] The beneficial effects of this utility model are as follows: This utility model integrates a control module, a power unit, operation buttons, and an auxiliary system. It has a compact structure, is easy to use, occupies a small space, and can quickly disassemble the hydraulic wrench without the need for manual lifting. It adopts a multi-joint rotating swing arm and a lifting module to work together, allowing the hydraulic wrench to be flexibly moved to different heights and positions. It is easy to adjust, and the workers can react with less effort. It has slow and fast lifting functions, reducing movement time and enabling the hydraulic wrench to be accurately aligned with each workpiece for operation, thereby improving work efficiency and quality.

[0017] When the worker is operating the hydraulic wrench, the connecting base has an adjustable shock absorption function. The shock absorption spring can also effectively counteract the vibration generated by the hydraulic wrench during operation, extend the service life of the equipment, reduce the workload of the worker, ensure the safety of the operator, and thus ensure the quality of assembly or maintenance.

[0018] Meanwhile, the auxiliary system has a built-in retractable power cord to provide power to the power unit. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the execution unit of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the rotating swing arm of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the hydraulic wrench connecting base of this utility model;

[0024] Figure 5 This is a partial enlarged view of point A in this utility model;

[0025] Figure 6 This is a utility model Figure 4 Exploded view;

[0026] In the diagram: 1. Mobile carrier, 2. Power unit, 3. Control module, 4. Auxiliary system, 5. Bracket, 6. Fixed slide rail, 7. Moving panel, 8. Servo motor, 9. Support arm, 10. Rotary joint, 11. Hydraulic wrench connecting base, 12. Upper cover plate, 13. Lower cover plate, 14. Upper and lower cover plate connector, 15. Shock-absorbing spring, 16. Adjustment hole, 17. Top support assembly, 18. Adjustment mounting block, 19. Handle bolt, 20. Adjustment bolt, 21. Nut, 22. Protrusion, 23. Connecting stud, 24. Handrail, 25. Lifting control button. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] Example 1:

[0029] like Figures 1-6 The hydraulic wrench lifting device shown includes a mobile carrier 1, on which an execution unit is installed. The execution unit includes a lifting module and a rotating arm. The lifting module is installed on the mobile carrier 1, and the rotating arm is installed on the lifting module to drive the rotating arm to move up and down along it. A hydraulic wrench is installed at the working end of the rotating arm, which can carry the hydraulic wrench to different heights and positions, so that the hydraulic wrench can be accurately aligned with each workpiece for operation.

[0030] like Figure 3 As shown, the rotating arm is responsible for connecting and fixing the hydraulic wrench and moving it in the horizontal direction. With the help of the lifting control button 25, the hydraulic wrench is lifted to the appropriate position to align with the nut. The rotating arm includes several arms 9, and adjacent arms 9 are connected by rotating joints 10 to form a rotating arm. One end of the rotating arm is equipped with a hydraulic wrench connecting base 11, and the hydraulic wrench is installed on the hydraulic wrench connecting base 11. The other end of the rotating arm is provided with a mounting surface, which is installed on the moving panel 7 in the lifting module by bolts.

[0031] The rotating arm is a three-stage rotating arm, with a maximum length of about 1 meter. It has three rotating joints 10. The multiple joints work together to carry the hydraulic wrench to various angles, rotating smoothly without jamming, and facilitating quick and easy alignment. The mounting surface is connected to the movable panel 7, allowing for vertical displacement and covering a larger working area. The hydraulic wrench connecting base 11 is designed with a pre-installed mounting position according to the customer's hydraulic wrench size and mounting hole positions.

[0032] like Figures 4-6As shown, the hydraulic wrench connecting base 11 includes an upper cover plate 12 and a lower cover plate 13. The lower cover plate 13 is mounted on the support arm 9 and serves as the support part of the entire component. The upper cover plate 12 provides an installation position for the hydraulic wrench. After the upper cover plate 12 and the lower cover plate 13 are assembled, they are connected as a whole by the upper and lower cover plate connectors 14 to form a receiving cavity. Several damping springs 15 are installed in the receiving cavity. When the hydraulic wrench is working, the damping springs 15 can greatly reduce the vibration of the workpiece. The damping springs 15 effectively counteract the vibration generated by the hydraulic wrench and extend the service life of the device. There is a gap between the bottom of the upper cover plate 12 and the inner bottom plate surface of the lower cover plate 13. The upper cover plate 12 has a protrusion 22. An opening is provided in the middle of the protrusion 22. A connecting stud 23 for connecting the hydraulic wrench is installed in the opening, which can be used for various types of hydraulic wrenches.

[0033] A handrail 24 is installed below the hydraulic wrench connecting base 11. A lifting control button 25 is installed on the handrail 24. Pressing the button raises / lowers the wrench and releasing it stops the wrench. The control is quick and convenient. When a worker needs to operate on workpieces of different heights after completing the operation of one workpiece, he / she can directly touch the button 25, reducing unnecessary walking.

[0034] like Figure 4 As shown, adjustment holes 16 are installed on all four sides of the upper cover plate 12, and a support assembly 17 for holding the hydraulic wrench is installed on the adjustment holes 16.

[0035] The adjustment hole 16 can be a long strip hole or multiple round holes, depending on the need.

[0036] As shown in Figure 4, the top support assembly 17 includes an adjustment mounting block 18, which is installed in the adjustment hole 16 by an adjustment bolt. The plate surface of the adjustment mounting block 18 is provided with a screw hole, and a handle bolt 19 is installed in the screw hole. The bolt end of the handle bolt 19 faces the hydraulic wrench.

[0037] like Figure 5 As shown, the top support assembly 17 includes an adjusting bolt 20, on which a nut 21 is mounted, and a handle bolt is mounted inside the nut 21, with the bolt end of the handle bolt facing the hydraulic wrench.

[0038] The two support components 17 are selected based on the remaining positions on the upper cover plate 12 after the hydraulic wrench is installed.

[0039] The working end of the handle bolt can also be fitted with a top support cap to increase the support area and further improve the support effect.

[0040] like Figure 2As shown, the lifting module is responsible for lifting the rotating arm, with a lifting range of 1.5 meters to 2.7 meters. The lifting module includes a support 5, which is vertically arranged between the support 5 and the moving carrier 1. A fixed slide rail 6 is installed on the working plate surface of the support 5. A moving panel 7 is installed on the fixed slide rail 6 through a slider assembly. A servo motor 8 and a rotating arm are installed on the moving panel 7 to drive the moving panel 7 to slide on the fixed slide rail 6. The moving panel 7 provides a mounting point for the servo motor and the rotating arm, which are driven by the servo motor 8 to carry the rotating arm to the height of the specified workpiece.

[0041] The bracket 5 is equipped with a transmission system, and the servo motor 8 is connected to the transmission system to drive the moving panel 7 to rise and fall on the fixed slide rail 6. The servo motor 8 has precise positioning and fast response. The transmission system can be a synchronous belt transmission system, a gear and rack transmission system, or a ball screw transmission system. Based on the hydraulic return and torque, the gear and rack transmission system is preferred as the transmission system. In this way, only the fixed slide rail 6 bears the weight and torque of the hydraulic wrench and the hydraulic return, thereby improving the overall service life of the lifting module.

[0042] like Figure 1 As shown, the mobile carrier 1 is also equipped with a power unit 2, a control module 3, and an auxiliary system 4. The power unit 2 is connected to the hydraulic wrench through a pipeline to provide working power to the hydraulic wrench. The auxiliary system 4 is a retractable and spring-loaded cable reel that supplies power to the entire device. One end of the auxiliary system 4 is connected to the power unit 2, and the other end of the auxiliary system 4 is connected to a DC power supply.

[0043] Among them, the mobile carrier 1 is a mobile conveyor trolley, which provides installation positions for the other components of the device and carries the other fixed components to various workstations. The mobile carrier 1 has four universal casters with brakes underneath, which can move freely in any direction. At the same time, after arriving at the designated workstation and starting operation, it can be kept in a stopped state to prevent the trolley from moving under force when the worker is operating.

[0044] The power unit 2 is a small hydraulic station located on the lower layer of the mobile carrier 1, behind the actuator, and hidden inside the vehicle. This ensures an aesthetically pleasing appearance while also adding counterweight to the device to prevent the risk of tipping over due to heavy loads during operation.

[0045] The control module is a PLC control system that inherits the HMI operation panel. The control cabinet has an IP54 protection rating. The control module has a quick-release button for rapid lifting and lowering, reducing the speed of intermediate passes without high installation requirements. The lifting button has a 25-degree slow-speed lifting and lowering button for use in precision positioning.

[0046] Work process:

[0047] Step 1: Move the device to the desired location and connect it to the power supply via auxiliary system 4;

[0048] Step 2: Turn on the power and start the servo motor 8 by using the lifting control button 25. The servo motor 8 drives the rotating arm to adjust the height so that the rotating arm is aligned with the workpiece. The adjusted height allows the hydraulic wrench to be inserted into the nut.

[0049] Step 3: Power unit 2 starts and supplies oil, and the hydraulic wrench starts working, repeating this process.

[0050] Example 2:

[0051] The difference from Embodiment 1 is that a clamp is installed on the upper cover plate 12, and the hydraulic wrench is installed through the clamp, which further improves the versatility of the device to accommodate more hydraulic wrenches of different specifications.

[0052] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A hydraulic wrench lifting device characterized by: The utility model relates to a mobile carrier (1) which is provided with an execution unit, the execution unit comprises a lifting module and a rotating swing arm, the lifting module is installed on the mobile carrier (1), the rotating swing arm is installed on the lifting module, the rotating swing arm is driven to move up and down, and a hydraulic wrench is installed on the working end of the rotating swing arm. The rotating swing arm comprises a plurality of branch arms (9), the adjacent branch arms (9) are connected through a rotating joint (10), forming a rotating master arm, one end of the rotating master arm is provided with a hydraulic wrench connecting base (11), the hydraulic wrench is installed on the hydraulic wrench connecting base (11), and the other end of the rotating master arm is provided with a mounting surface which is bolted on a moving panel (7) in the lifting module.

2. A hydraulic winch lifting device according to claim 1, wherein: The hydraulic wrench connecting base (11) comprises an upper cover plate (12) and a lower cover plate (13), the lower cover plate (13) is installed on the branch arm (9), the upper cover plate (12) and the lower cover plate (13) are connected into an integrated whole through an upper and lower cover plate connecting piece (14) after being spliced, and a containing cavity is formed, a plurality of damping springs (15) are installed in the containing cavity, there is a spacing between the bottom of the upper cover plate (12) and the inner bottom plate surface of the lower cover plate (13), the plate surface of the upper cover plate (12) is provided with a protrusion (22), the protrusion (22) is provided with an opening at the middle position, and a connecting stud (23) for connecting the hydraulic wrench is installed in the opening.

3. A hydraulic winch lifting device according to claim 2, wherein: The upper cover plate (12) is provided with an adjusting hole (16) on each side edge, and a jacking assembly (17) for pressing the hydraulic wrench is installed on the adjusting hole (16).

4. A hydraulic winch lifting device according to claim 3, wherein: The adjusting hole (16) is a long hole or a plurality of round holes.

5. A hydraulic winch lifting device according to claim 3, wherein: The jacking assembly (17) comprises an adjusting mounting block (18), the adjusting mounting block (18) is installed in the adjusting hole (16) through an adjusting bolt, a screw hole is formed in the plate surface of the adjusting mounting block (18), a handle bolt (19) is installed in the screw hole, and the bolt end of the handle bolt (19) faces the hydraulic wrench.

6. A hydraulic jack lifting device according to claim 3, wherein: The jacking assembly (17) comprises an adjusting bolt (20), a nut (21) is installed on the adjusting bolt (20), a handle bolt is installed in the nut (21), and the bolt end of the handle bolt faces the hydraulic wrench.

7. A hydraulic jack lifting device according to claim 2, wherein: The upper cover plate (12) is provided with a clamp, and the hydraulic wrench is installed through the clamp.

8. A hydraulic jack lifting device according to claim 1, wherein: The lifting module comprises a support (5), the support (5) is vertically arranged between the mobile carrier (1), a fixed slide rail (6) is installed on the working plate surface of the support (5), the moving panel (7) is installed on the fixed slide rail (6) through a sliding block assembly, and the servo motor (8) and the rotating swing arm are installed on the moving panel (7) and used for driving the moving panel (7) to slide on the fixed slide rail (6).

9. A hydraulic winch lifting device according to claim 8, wherein: The support (5) is provided with a transmission system, the servo motor (8) is connected with the transmission system, and the moving panel (7) is driven to move up and down on the fixed slide rail (6).

10. The hydraulic jack lifting device of claim 1, wherein: The mobile carrier (1) is further provided with a power unit (2), a control module (3) and an auxiliary system (4), the power unit (2) is connected with the hydraulic wrench through a pipeline to provide working power for the hydraulic wrench, one end of the auxiliary system (4) is connected with the power unit (2), and the other end of the auxiliary system (4) is connected with a direct current power supply.

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