Movable electric hydraulic power unit

Abstract

The utility model discloses a movable electric hydraulic power unit, and relates to the technical field of hydraulic power units. The device comprises a movable frame, an oil tank is arranged in the movable frame, one side of the oil tank is fixedly connected with a motor, the top of the oil tank is communicated with a pressure oil pipe, one side of the oil tank is communicated with an oil return pipe, one side of the oil tank is provided with a retarding assembly, and the retarding assembly comprises a damping mechanism arranged on one side of the oil tank. Vibration energy generated in the moving process is absorbed through the damping design (the spring and the damper) of the damping mechanism, impact on an oil tank and a motor is reduced, and foaming of oil liquid is avoided; after parking, the connecting block and the fixing block are locked through the fixing inserting rod, a rigid supporting structure is formed, the influence of residual vibration on the system is eliminated, the operation stability of equipment under the complex terrain is remarkably improved, the service life of core elements is prolonged, the maintenance cost is reduced, and the device is particularly suitable for the engineering scene of frequent movement.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic power unit technology, and in particular relates to a mobile electro-hydraulic power unit. Background Technology

[0002] An electro-hydraulic power unit (EHPU) is a power device that converts electrical energy into hydraulic energy by driving a hydraulic pump with an electric motor. Its core function is to provide high-pressure hydraulic fluid to the hydraulic system to drive actuators (such as hydraulic cylinders and hydraulic motors). It is widely used in industrial automation, mobile machinery, and emergency equipment. Compared to traditional internal combustion engine-driven hydraulic power units, EHPUs offer advantages such as low noise, zero emissions, and high control precision, making them particularly suitable for indoor or urban operations with stringent environmental requirements. However, existing mobile EHPUs still have significant design and practical application shortcomings.

[0003] Most existing mobile electro-hydraulic power units lack integrated hose reeling devices, with pressure hoses and return hoses typically loosely placed or simply bundled. During equipment movement or transportation, the pipes are easily subjected to external forces such as pulling, bending, and even friction with surrounding components. The loose hoses are prone to tangling, increasing the difficulty of unfolding them. Repeated bending accelerates pipe aging and increases the risk of leakage. To adapt to the needs of moving in complex environments, mobile electro-hydraulic power units typically incorporate shock-absorbing mechanisms. However, existing shock-absorbing mechanisms lack locking mechanisms, leading to instability in the electro-hydraulic power unit during operation after it has been moved into place.

[0004] To address these issues, we provide a mobile electro-hydraulic power unit. Utility Model Content

[0005] The purpose of this utility model is to provide a mobile electro-hydraulic power unit. By coordinating the damping component and the winding component, it solves the problems in the prior art where scattered oil pipes are easily tangled, increasing the difficulty of operation during unfolding, repeated bending accelerates pipe aging, causing leakage risks, and the shock absorption mechanism does not have a locking mechanism, resulting in instability of the electro-hydraulic power unit during use.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a mobile electro-hydraulic power unit, comprising a mobile frame, an oil tank inside the mobile frame, an electric motor fixedly connected to one side of the oil tank, a pressure oil pipe connected to the top of the oil tank, a return oil pipe connected to one side of the oil tank, and a damping assembly on one side of the oil tank. The damping assembly includes a shock-absorbing mechanism on one side of the oil tank, a support plate fixedly connected to one side of the shock-absorbing mechanism, a connecting rod movably connected to the top of the support plate via a rotating shaft, a connecting block fixedly connected to the other end of the connecting rod, and a fixing block on the outer surface of the connecting block. A winding assembly is provided at the bottom of the support plate, the winding assembly including a horizontal plate fixedly connected to one side of the mobile frame, a rotating through hole inside the horizontal plate, a rotating rod inside the rotating through hole, and a winding roller fixedly connected to one end of the rotating rod.

[0008] The present invention is further configured such that the movable frame includes a vertical plate, a horizontal bar fixedly connected to one side of the vertical plate, a base plate fixedly connected to one side of the vertical plate, and movable wheels movably connected to the bottom of the base plate via bearings.

[0009] The present invention is further configured such that the shock absorption mechanism includes a shock absorption groove, a vertical rod fixedly connected inside the shock absorption groove, a spring sleeved on the surface of the vertical rod, a shock absorption plate slidably connected to the surface of the vertical rod, and a damper fixedly connected to one side of the shock absorption plate, wherein one side of the shock absorption plate is fixedly connected to a support plate.

[0010] The present invention is further configured such that the fixing block has a sleeve groove adapted to the connecting block inside, and both the connecting block and the fixing block have fixing through holes inside, into which a fixing rod is inserted.

[0011] The present invention is further configured such that an anti-rotation gear is fixedly connected to one side of the rotating rod, and an anti-rotation groove adapted to the anti-rotation gear is provided inside the horizontal plate.

[0012] The present invention is further configured such that a first magnet is fixedly connected to one side of the winding roller, a second magnet is magnetically attracted to the surface of the first magnet, and the second magnet is fixedly connected to one side of the horizontal plate.

[0013] The present invention is further configured such that an anti-detachment plate is fixedly connected to the end of the rotating rod away from the take-up roller, and the number of take-up assemblies is two. The anti-detachment plate is used to limit the pull-out of the take-up roller.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model absorbs the vibration energy generated during movement through the shock absorption design (spring + damper) of the shock absorption mechanism, reducing the impact on the oil tank and motor and preventing oil foaming; after stopping, the connecting block and the fixed block are locked by the fixed plug rod to form a rigid support structure, eliminating the impact of residual vibration on the system. This design significantly improves the operating stability of the equipment in complex terrain, extends the service life of core components, and reduces maintenance costs, and is especially suitable for engineering scenarios with frequent movement.

[0016] 2. This utility model achieves automatic winding and longitudinal positioning of oil pipes through anti-rotation gears and magnetic attraction devices (first magnet + second magnet), avoiding tangling, bending and wear caused by manual handling. The double winding rollers manage the pressure oil pipe and return oil pipe respectively, and the anti-detachment plate prevents excessive pulling out, ensuring that the pipeline is neatly stored and quickly deployed. This design greatly shortens the operation preparation time and reduces the risk of oil pipe rupture and leakage.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a mobile electro-hydraulic power unit.

[0020] Figure 2 This is a front view of a deceleration component in a mobile electro-hydraulic power unit.

[0021] Figure 3 This is a front view of the winding assembly in a mobile electro-hydraulic power unit.

[0022] Figure 4 This is a diagram showing the pull-out of a winding assembly in a mobile electro-hydraulic power unit.

[0023] Figure 5 This is a front view of the shock absorption mechanism in a mobile electro-hydraulic power unit.

[0024] In the attached diagram: 1. Moving frame; 101. Vertical plate; 102. Horizontal bar; 103. Base plate; 104. Moving wheel; 2. Oil tank; 3. Motor; 4. Pressure oil pipe; 5. Return oil pipe; 6. Shock absorption mechanism; 601. Vertical bar; 602. Spring; 603. Shock absorption plate; 604. Damper; 7. Support plate; 8. Connecting rod; 9. Connecting block; 10. Fixing block; 11. Horizontal plate; 12. Rotating through hole; 13. Rotating rod; 14. Rewinding roller; 15. Fixing through hole; 16. Fixing insert rod; 17. Anti-rotation gear; 18. First magnet; 19. Second magnet; 20. Anti-detachment plate. Detailed Implementation

[0025] The technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5 This utility model is a mobile electro-hydraulic power unit, including a mobile frame 1, an oil tank 2 inside the mobile frame 1, a motor 3 fixedly connected to one side of the oil tank 2, a pressure oil pipe 4 connected to the top of the oil tank 2, a return oil pipe 5 connected to one side of the oil tank 2, and a damping assembly on one side of the oil tank 2. The damping assembly includes a shock-absorbing mechanism 6 on one side of the oil tank 2, a support plate 7 fixedly connected to one side of the shock-absorbing mechanism 6, a connecting rod 8 movably connected to the top of the support plate 7 via a rotating shaft, a connecting block 9 fixedly connected to the other end of the connecting rod 8, and a fixing block 10 on the outer surface of the connecting block 9. The buffer assembly is designed so that the connecting rod 8 and the fixing block 10 are rigidly connected by the fixing rod 16, forming a stable support structure when the equipment is stopped, eliminating the impact of residual vibration on the system stability. The bottom of the support plate 7 is provided with a winding assembly, which includes a horizontal plate 11 fixedly connected to one side of the moving frame 1, a rotating through hole 12 inside the horizontal plate 11, a rotating rod 13 inside the rotating through hole 12, and a winding roller 14 fixedly connected to one end of the rotating rod 13. Through the setting of the winding assembly, the winding assembly neatly winds up the pressure oil pipe 4 and the return oil pipe 5, which is convenient for handling and use before and after movement.

[0028] Example 2

[0029] Please see Figures 1-5Based on Embodiment 1, the movable frame 1 includes a vertical plate 101, a horizontal bar 102 fixedly connected to one side of the vertical plate 101, a base plate 103 fixedly connected to one side of the vertical plate 101, and movable wheels 104 movably connected to the bottom of the base plate 103 via bearings. A fixing block 10 is fixedly connected to the bottom of the horizontal bar 102. The movable frame 1 is used to drive the electro-hydraulic power unit to move. The shock absorption mechanism 6 includes a shock absorption groove and a vertical bar 601 fixedly connected inside the shock absorption groove. A spring 602 is sleeved on the surface of the vertical rod 601; a damping plate 603 is slidably connected to the surface of the vertical rod 601; a damper 604 is fixedly connected to one side of the damping plate 603; one side of the damping plate 603 is fixedly connected to the support plate 7; a damping groove is located inside the vertical plate 101; through the setting of the damping mechanism 6, it is used for shock absorption and buffering during movement; a sleeve groove adapted to the connecting block 9 is opened inside the fixing block 10; both the connecting block 9 and the fixing block 10 are provided with fixing through holes 15. A fixing rod 16 is inserted inside the 5-hole. The fixing rod 16 is used to fix the connecting block 9 and the fixing block 10 through the fixing through hole 15. An anti-rotation gear 17 is fixedly connected to one side of the rotating rod 13. An anti-rotation groove adapted to the anti-rotation gear 17 is opened inside the horizontal plate 11. The anti-rotation gear 17 is used to limit the winding roller 14 during movement and prevent the winding roller 14 from rotating. A first magnet 18 is fixedly connected to one side of the winding roller 14. The surface of the first magnet 18 is magnetically attracted to a second magnet. Ferromagnetic magnet 19 and second ferromagnetic magnet 19 are fixedly connected to one side of horizontal plate 11. The setting of first ferromagnetic magnet 18 and second ferromagnetic magnet 19 is used to limit the longitudinal movement of take-up roller 14 during movement to prevent take-up roller 14 from swaying back and forth. The end of rotating rod 13 away from take-up roller 14 is fixedly connected to anti-detachment plate 20. There are two take-up assemblies. By setting anti-detachment plate 20, the pull-out length of take-up roller 14 is limited. By setting two sets of take-up assemblies, they are used to take up pressure oil pipe 4 and return oil pipe 5 respectively.

[0030] The working principle of this utility model is as follows: the moving frame 1 is pushed to move to the designated position. The vibration generated during the movement is damped and buffered by the spring 602 and the damper 604 to avoid damage to the equipment by the large impact force during the movement. After moving to the designated position, the connecting rod 8 and the connecting block 9 are raised to make the connecting block 9 enter the sleeve groove of the fixed block 10. Then, the fixed insertion rod 16 is inserted into the corresponding fixed through hole 15 to lock the shock absorption mechanism 6 and ensure the stability of the electric hydraulic power unit during use.

[0031] Then pull the take-up roller 14 to one side to disengage the first magnet 18 and the second magnet 19 on the take-up roller 14. At the same time, the anti-rotation gear 17 disengages from the anti-rotation groove. The take-up roller 14 loses its limit and is pulled outward. At this time, the take-up roller 14 can be rotated to pull out the pressure oil pipe 4 and the return oil pipe 5 wound on the take-up roller 14, so as to connect with external equipment for easy use. After use, reverse the take-up roller 14 to retract the pressure oil pipe 4 and the return oil pipe 5, and reset the take-up roller 14. Finally, pull out the fixed plug rod 16 and lay down the connecting rod 8 and the connecting block 9, so that the moving frame 1 can be pushed to move again.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mobile electro-hydraulic power pack comprising a mobile frame (1), characterized in that: The movable frame (1) is equipped with an oil tank (2), an electric motor (3) is fixedly connected to one side of the oil tank (2), a pressure oil pipe (4) is connected to the top of the oil tank (2), and a return oil pipe (5) is connected to one side of the oil tank (2). A damping assembly is provided on one side of the oil tank (2). The damping assembly includes a shock-absorbing mechanism (6) provided on one side of the oil tank (2), a support plate (7) fixedly connected to one side of the shock-absorbing mechanism (6), a connecting rod (8) movably connected to the top of the support plate (7) via a rotating shaft, a connecting block (9) fixedly connected to the other end of the connecting rod (8), and a fixing block (10) provided on the outer surface of the connecting block (9). The bottom of the support plate (7) is provided with a winding assembly, which includes a horizontal plate (11) fixedly connected to one side of the movable frame (1), a rotating through hole (12) is provided inside the horizontal plate (11), a rotating rod (13) is provided inside the rotating through hole (12), and a winding roller (14) fixedly connected to one end of the rotating rod (13).

2. A mobile electro-hydraulic power pack according to claim 1, characterised in that: The movable frame (1) includes a vertical plate (101), a horizontal bar (102) fixedly connected to one side of the vertical plate (101), a base plate (103) fixedly connected to one side of the vertical plate (101), and movable wheels (104) movably connected to the bottom of the base plate (103) via bearings.

3. A mobile electro-hydraulic power unit according to claim 1, characterized in that: The damping mechanism (6) includes a damping groove, a vertical rod (601) fixedly connected inside the damping groove, a spring (602) sleeved on the surface of the vertical rod (601), a damping plate (603) slidably connected to the surface of the vertical rod (601), and a damper (604) fixedly connected to one side of the damping plate (603). One side of the damping plate (603) is fixedly connected to the support plate (7).

4. A mobile electro-hydraulic power unit according to claim 1, characterized in that: The fixing block (10) has a sleeve groove that matches the connecting block (9) inside. Both the connecting block (9) and the fixing block (10) have fixing through holes (15) inside. A fixing rod (16) is inserted into the fixing through hole (15).

5. A mobile electro-hydraulic power unit according to claim 1, characterized in that: An anti-rotation gear (17) is fixedly connected to one side of the rotating rod (13), and an anti-rotation groove adapted to the anti-rotation gear (17) is provided inside the horizontal plate (11).

6. A mobile electro-hydraulic power unit according to claim 1, characterized in that: A first magnet (18) is fixedly connected to one side of the take-up roller (14), and a second magnet (19) is magnetically attracted to the surface of the first magnet (18). The second magnet (19) is fixedly connected to one side of the horizontal plate (11).

7. A mobile electro-hydraulic power unit according to claim 1, characterized in that: The rotating rod (13) is fixedly connected to an anti-detachment plate (20) at one end away from the winding roller (14). There are two winding assemblies. The anti-detachment plate (20) is used to limit the winding roller (14) when it is pulled out.

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