Adjusting mechanism of hydraulic power unit
By designing an adjustment mechanism in the hydraulic power unit, the height of the oil pipe inlet is automatically adjusted using a float plate and adjustment components, solving the extraction problem caused by the fixed position of the oil pipe and ensuring the stable operation of the hydraulic system and the continuity of oil supply.
Patent Information
- Application Number
- CN202520594674.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-01
AI Technical Summary
In traditional hydraulic power units, the position of the oil pipe is fixed, making it difficult to flexibly adjust according to changes in the oil level in the tank and the working conditions. This results in the inability to draw hydraulic oil from below when the oil pipe is too high, and the priority to draw sediment when the oil pipe is too low. The sediment can clog the filter or pipeline, affecting the normal operation of the system.
An adjustment mechanism for a hydraulic power unit is designed, including an oil tank body, an oil suction pump, an oil pipe, an adjustment component, and a float plate. The float plate adjusts the inlet height of the oil pipe according to changes in the oil level. Combined with the adjustment component and the pulling component, it ensures that the oil pipe opening always faces downward, avoiding the extraction of sediment and ensuring the supply of oil.
It achieves automatic adjustment of the oil pipe inlet height, avoiding the problems of extracting sediment when the oil pipe is too low and failing to extract hydraulic oil when the pipe is too high, thus maintaining the stable operation of the system and the continuity of oil supply.
Smart Images

Figure CN223794392U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic power unit technology, and in particular to an adjustment mechanism for a hydraulic power unit. Background Technology
[0002] The hydraulic power unit is connected to several hydraulic cylinders through an external piping system to control the operation of multiple valves. During the use of the hydraulic power unit, the adjustment of the position of the oil pipe in the oil tank is crucial to ensuring the oil suction effect and stable operation of the equipment.
[0003] In traditional hydraulic power units, the position of the oil pipes is often fixed, making it difficult to flexibly adjust according to changes in the oil level in the tank and the needs of different working conditions. Furthermore, additives in the hydraulic oil (such as antioxidants, rust inhibitors, impurities, moisture, or metal particles) may separate and form sediment due to prolonged standing. During long-term storage, the hydraulic oil may oxidize or degrade, producing colloids or sludge, which also form sediment.
[0004] This results in the inability to extract hydraulic oil from below when the oil pipe is too high, while when the oil pipe is too low, sediment will be extracted first. The sediment will then clog the filter, valve, or pipeline, affecting the normal operation of the system.
[0005] Therefore, it is necessary to invent an adjustment mechanism for a hydraulic power unit to solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide an adjustment mechanism for a hydraulic power unit to solve the problems mentioned in the background art, such as the inability to draw hydraulic oil from below when the oil pipe is too high, and the priority of drawing sediment when the oil pipe is too low, which will clog the filter, valve or pipeline and affect the normal operation of the system.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustment mechanism for a hydraulic power unit, comprising:
[0008] Fuel tank body;
[0009] The oil suction pump is detachably mounted on the main body of the oil tank;
[0010] The hydraulic power unit body is detachably mounted on the oil tank body and connected to the oil suction pump;
[0011] The oil pipe is installed on the oil suction pump and extends into the interior of the oil tank body;
[0012] The adjustment assembly is located inside the main body of the fuel tank and is used to clamp the fuel line;
[0013] Two float plates are provided and are attached to the bottom of the adjustment assembly, and float on the oil surface of the main body of the oil tank.
[0014] Optionally, the adjustment component includes:
[0015] There are two frames;
[0016] There are two energy storage components, which are installed inside the frame;
[0017] Two tension components are provided and are installed on the outside of the energy storage component, extending to the outside of the frame;
[0018] The mounting plate is detachably and fixedly mounted on the inner bottom wall of the frame and connected to the tension assembly.
[0019] Optionally, the two frames are fixed together by a support plate, the support plate having a through hole in the middle for the oil pipe to pass through.
[0020] Optionally, the energy storage component includes:
[0021] The positioning sleeve is detachably and securely installed on the inner wall of the frame;
[0022] The pivot is rotatably mounted inside the frame and is concentrically set with the positioning sleeve;
[0023] The coil spring is detachably and fixedly connected at both ends to the outer side of the rotating shaft and the inner surface of the positioning sleeve, respectively.
[0024] Optionally, the pulling component includes:
[0025] The winding reel is fixedly mounted on the outside of the shaft;
[0026] The traction rope is wound around the outside of the winding reel and extends to the outside of the frame to be fixedly connected to the mounting plate.
[0027] Optionally, an elastic pull rope is fixedly installed on the outside of the frame, and the end of the elastic pull rope away from the frame is fixedly connected to the inner bottom wall of the fuel tank body.
[0028] Optionally, the inner bottom wall of the fuel tank body is inclined, and the mounting plate is fixedly installed on the fuel tank body at the lowest point of the inner bottom wall.
[0029] Optionally, a threaded sleeve is provided on the outside of the inlet of the oil pipe, and the inlet of the oil pipe is lower than the height of the float plate. A threaded positioning ring that contacts the lower surface of the receiving plate is screwed onto the outside of the threaded sleeve, and a limiting ring that contacts the upper surface of the receiving plate is fixedly installed on the outside of the oil pipe.
[0030] The technical effects and advantages of this utility model are as follows:
[0031] 1. This utility model, through the setting of the float plate, can adjust the height of the oil pipe inlet according to the height of the oil level, so that the oil pipe inlet is adjusted with the oil level, thereby avoiding the oil pipe being too low and drawing out the sediment in the hydraulic oil, and also avoiding the oil pipe being too high and unable to draw out the hydraulic oil in the lower part.
[0032] 2. This utility model positions the oil pipe by adjusting the components, preventing the oil pipe from swinging around under the action of suction, and at the same time keeping the opening of the oil pipe always facing downward. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of the structure of this utility model;
[0034] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0035] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;
[0036] Figure 4 This is a schematic diagram of the threaded sleeve structure of this utility model;
[0037] Figure 5 This is a schematic diagram of the energy storage component structure of this utility model.
[0038] In the picture: 100, fuel tank body;
[0039] 200. Oil suction pump;
[0040] 300. Hydraulic power unit body;
[0041] 400. Oil pipe; 410. Threaded sleeve; 420. Threaded locating ring; 430. Limiting ring;
[0042] 500. Adjustment component; 510. Frame; 511. Receiving plate; 512. Through hole; 513. Elastic pull rope; 520. Power storage component; 521. Positioning sleeve; 522. Rotating shaft; 523. Coil spring; 530. Pulling component; 531. Winding wheel; 532. Traction rope; 540. Mounting plate;
[0043] 600. Floating board. Detailed Implementation
[0044] 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.
[0045] This utility model provides, for example Figure 1-5 The adjustment mechanism of the hydraulic power unit shown includes:
[0046] Fuel tank body 100;
[0047] The oil suction pump 200 is detachably mounted on the oil tank body 100;
[0048] The hydraulic power unit body 300 is detachably mounted on the oil tank body 100 and connected to the oil suction pump 200 to ensure smooth connection of the oil circuit and power transmission.
[0049] The oil pipe 400 is installed on the oil suction pump 200 and extends into the interior of the oil tank body 100, providing a channel for oil transportation and ensuring the stability of the oil pipe's position under different working conditions.
[0050] Adjustment component 500 is placed inside the oil tank body 100 and is used to clamp oil pipe 400;
[0051] Two float plates 600 are provided and are attached to the bottom of the adjustment component 500. They float on the oil surface of the oil tank body 100 and use buoyancy to drive the adjustment component 500 and related components to make adaptive adjustments.
[0052] The working principle of this embodiment is as follows:
[0053] In use, add enough hydraulic oil into the tank body 100, then install the adjusting component 500 inside the tank body 100, extend the oil pipe 400 into the tank body 100, and fix the oil pipe 400 to the adjusting component 500. When the hydraulic oil inside the tank body 100 changes, the float plate 600 will drive the adjusting component 500 to adjust the height according to the change in hydraulic oil.
[0054] The float plate 600 allows the height of the inlet of the oil pipe 400 to be adjusted according to the oil level, so that the inlet of the oil pipe 400 is adjusted according to the oil level. This prevents the oil pipe 400 from being too low and drawing out sediment from the hydraulic oil, and also prevents the oil pipe 400 from being too high and unable to draw out the hydraulic oil from the lower part.
[0055] The oil pipe 400 is positioned by adjusting the settings of component 500 to prevent it from swinging around under the action of suction, while keeping the opening of the oil pipe 400 always facing downwards.
[0056] In some embodiments of this utility model, reference is made to Figure 3 As shown, the adjustment component 500 includes:
[0057] There are two frames 510, and each frame 510 is divided into upper and lower parts. The two frames 510 are detachably sealed and fixed together.
[0058] There are two energy storage components 520, which are installed inside the frame 510;
[0059] Two tension components 530 are provided and are installed on the outside of the energy storage component 520 and extend to the outside of the frame 510;
[0060] Mounting plate 540 is detachably fixed to the inner bottom wall of frame 510 by bolts and connected to tension assembly 530. Mounting plate 540 and tension assembly 530 are connected by bolts and other connection structures to ensure that they can stably transmit force when working together.
[0061] The frame 510 provides space for the installation of the energy storage component 520 and the tension component 530.
[0062] The mounting plate 540 initiates a traction action on the frame 510, preventing the frame 510 from drifting inside the fuel tank body 100 under the action of the float plate 600.
[0063] In some embodiments of this utility model, reference is made to Figure 4 As shown, the two frames 510 are fixed together by the receiving plate 511. The receiving plate 511 has a through hole 512 in the middle for the oil pipe 400 to pass through. The diameter of the through hole 512 is perfectly matched with the outer diameter of the oil pipe 400, which can ensure that the oil pipe 400 passes through smoothly and also ensure a certain degree of sealing between the two.
[0064] The two frames 510 are fixed together by the support plate 511, which ensures the stability of the oil pipe 400 and prevents the two frames 510 from drifting away.
[0065] In some embodiments of this utility model, reference is made to Figure 4 and Figure 5 As shown, the energy storage assembly 520 includes:
[0066] Positioning sleeve 521 is detachably and fixedly installed on the inner wall of frame 510;
[0067] The rotating shaft 522 is rotatably installed inside the frame 510 and is concentrically set with the positioning sleeve 521 to ensure high stability and coaxiality during operation, effectively reducing wear and vibration caused by eccentricity.
[0068] The coil spring 523 is detachably and fixedly connected at both ends to the outer side of the rotating shaft 522 and the inner surface of the positioning sleeve 521 respectively through connecting components. This detachable connection method makes it convenient to operate the coil spring 523 when maintaining, repairing or replacing parts of the equipment, which greatly improves the maintainability of the equipment.
[0069] The rotating shaft 522 can drive the pulling component 530 to adjust during rotation, thereby raising and lowering the adjustment component 500.
[0070] The stress of the coil spring 523 is relatively small, which can only limit the swaying of the adjustment component 500 and drive the pulling component 530 to rewind when the adjustment component 500 descends.
[0071] In some embodiments of this utility model, reference is made to Figure 4 and Figure 5 As shown, the tension assembly 530 includes:
[0072] The winding reel 531 is detachably and fixedly mounted on the outside of the rotating shaft 522, and the winding and unwinding of the traction rope 532 are achieved by rotating clockwise and counterclockwise.
[0073] The traction rope 532 is wound around the outside of the winding reel 531 and extends to the outside of the frame 510 to be fixedly connected to the mounting plate 540. It extends smoothly to the outside of the frame 510 along the pre-planned guide path of the frame 510.
[0074] The traction rope 532 is wound or released by the winding wheel 531, and the length of the released traction rope 532 is adjusted according to the amount of lubricating oil.
[0075] In some embodiments of this utility model, reference is made to Figure 4 As shown, an elastic pull rope 513 is fixedly installed on the outside of the frame 510. The end of the elastic pull rope 513 away from the frame 510 is fixedly connected to the inner bottom wall of the tank body 100. The elastic pull rope 513 is made of high-strength rubber material, which has good elasticity and durability, ensuring that it can stably pull the frame 510 under various working conditions.
[0076] The elastic rope 513 applies a traction force to the frame 510 to prevent the frame 510 from tilting or falling over under the weight of the oil pipe 400. As the frame 510 rises, the integrity of the oil pipe 400 also increases, and the elasticity of the elastic rope 513 also increases, so that the frame 510 remains stable during lifting and lowering.
[0077] In some embodiments of this utility model, reference is made to Figure 2As shown, the inner bottom wall of the oil tank body 100 is inclined to ensure that the hydraulic oil in the oil tank can flow naturally under the action of gravity, and the mounting plate 540 is fixedly installed on the oil tank body 100 at the lowest point of the inner bottom wall. This position can collect the hydraulic oil in the oil tank to the maximum extent, providing sufficient oil supply for the stable operation of the entire hydraulic power unit.
[0078] In some embodiments of this utility model, reference is made to Figure 4 As shown, a threaded sleeve 410 is provided on the outer side of the inlet of the oil pipe 400, which provides convenient conditions for subsequent installation and adjustment. The inlet of the oil pipe 400 is lower than the height of the float plate 600, which can effectively prevent the occurrence of accidents such as liquid backflow, greatly ensuring the stability and safety of the entire system. A threaded positioning ring 420 that contacts the lower surface of the receiving plate 511 is screwed onto the outer side of the threaded sleeve 410, thereby playing a role in accurately positioning the position of the oil pipe 400 in the vertical direction. A limiting ring 430 that contacts the upper surface of the receiving plate 511 is fixedly installed on the outer side of the oil pipe 400, which restricts the position of the oil pipe 400 from above, preventing unnecessary displacement or shaking during operation, and ensuring the reliable operation of the entire hydraulic power unit adjustment mechanism.
[0079] The working method of this utility model:
[0080] When the oil level in the main body 100 of the oil tank changes, the float plate 600 will float up and down with the liquid level. Since the float plate 600 is attached to the bottom of the adjusting component 500, the adjusting component 500 will also move up and down accordingly. During the movement of the adjusting component 500, the mounting plate 540 will drive the winding wheel 531 to rotate via the traction rope 532. The rotation of the winding wheel 531 will in turn drive the rotating shaft 522 to rotate, causing the coil spring 523 to deform and store energy. When the liquid level drops, the coil spring 523 releases energy, pulling the traction rope 532 through the rotating shaft 522 and the winding wheel 531. Since the mounting plate 540 is fixed, the adjusting component 500 will cause the opening of the oil pipe 400 to drop, ensuring that the oil suction port of the oil pipe 400 is always at a suitable liquid level depth. When the liquid level rises, the coil spring 523 stores energy, and the oil pipe 400 rises with the liquid level. The bottom wall of the oil tank body 100 is inclined, and the mounting plate 540 is located at the lowest point of the bottom wall. This ensures that when the oil volume decreases, the oil can gather as much as possible near the mounting plate 540, which is convenient for the oil pipe 400 to draw oil.
[0081] Install the oil pipe 400, pass the oil pipe 400 through the through hole 512, and then screw the threaded positioning ring 420 onto the outside of the threaded sleeve 410 to fix the oil pipe 400.
[0082] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0083] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustment mechanism for a hydraulic power unit, characterized in that, include: Fuel tank body (100); An oil suction pump (200) is detachably mounted on the oil tank body (100); The hydraulic power unit body (300) is detachably mounted on the oil tank body (100) and connected to the oil suction pump (200); An oil pipe (400) is installed on the oil suction pump (200) and extends into the interior of the oil tank body (100); An adjustment assembly (500) is placed inside the tank body (100) and is used to clamp the oil pipe (400); Two float plates (600) are provided and are attached to the bottom of the regulating assembly (500) and float on the oil surface of the oil tank body (100).
2. The adjusting mechanism of a hydraulic power unit according to claim 1, characterized in that: The adjustment component (500) includes: Frame (510), with two settings; Two energy storage components (520) are provided and installed inside the frame (510); Two tension components (530) are provided and are installed on the outside of the energy storage component (520) and extend to the outside of the frame (510); Mounting plate (540) is detachably fixed to the inner bottom wall of frame (510) and connected to tension assembly (530).
3. The adjusting mechanism of a hydraulic power unit according to claim 2, characterized in that: The two frames (510) are fixed together by a support plate (511), and the support plate (511) has a through hole (512) in the middle for the oil pipe (400) to pass through.
4. The adjusting mechanism of a hydraulic power unit according to claim 2, characterized in that: The energy storage component (520) includes: The positioning sleeve (521) is detachably and fixedly installed on the inner wall of the frame (510); A pivot (522) is rotatably mounted inside a frame (510) and is concentrically positioned with a positioning sleeve (521); The coil spring (523) is detachably fixed at both ends to the outer side of the rotating shaft (522) and the inner surface of the positioning sleeve (521).
5. The adjusting mechanism of a hydraulic power unit according to claim 3, characterized in that: The tensioning assembly (530) includes: The winding reel (531) is fixedly installed on the outside of the rotating shaft (522); The traction rope (532) is wound around the outside of the winding reel (531) and extends to the outside of the frame (510) to be fixedly connected to the mounting plate (540).
6. The adjusting mechanism of a hydraulic power unit according to claim 2, characterized in that: An elastic pull rope (513) is fixedly installed on the outside of the frame (510), and the end of the elastic pull rope (513) away from the frame (510) is fixedly connected to the inner bottom wall of the tank body (100).
7. The adjusting mechanism of a hydraulic power unit according to claim 2, characterized in that: The inner bottom wall of the tank body (100) is inclined, and the mounting plate (540) is fixedly installed on the tank body (100) at the lowest point of the inner bottom wall.
8. The adjusting mechanism of a hydraulic power unit according to claim 3, characterized in that: A threaded sleeve (410) is provided on the outside of the inlet of the oil pipe (400), and the inlet of the oil pipe (400) is lower than the height of the float plate (600). A threaded positioning ring (420) that contacts the lower surface of the receiving plate (511) is screwed onto the outside of the threaded sleeve (410). A limiting ring (430) that contacts the upper surface of the receiving plate (511) is fixedly installed on the outside of the oil pipe (400).