Hydraulic device for a vertical lift tailgate

Abstract

The utility model provides a kind of hydraulic device of vertical lifting type tail plate, it is related to hydraulic flow control field.The hydraulic device of vertical lifting type tail plate, including hydraulic control device shell, the inside of hydraulic control device shell is provided with adjusting mechanism, the adjusting mechanism includes oil inlet hole and flow channel, the oil inlet hole and flow channel are communicated, the inner wall of hydraulic control device shell is rotatably connected with two-way adjusting screw rod.The hydraulic device of vertical lifting type tail plate is cooperated with the matching setting of parts in adjusting mechanism, to realize the accurate control of the hydraulic oil flow in the hydraulic control device shell, through the improvement, ensure that two flow limiting balls can move synchronously, effectively avoid the pressure imbalance in the inside of hydraulic control device shell caused by the deviation of response speed or stroke of two flow limiting balls when traditional device is adjusted, further make the device more stable.

Description

Technical Field

[0001] This utility model relates to a hydraulic device, specifically a hydraulic device for a vertically lifting tailgate, belonging to the field of hydraulic flow control technology. Background Technology

[0002] Hydraulic systems utilize incompressible fluids to transmit pressure in sealed pipelines, driving actuators to complete high-force output tasks. They are widely used in engineering machinery and aerospace fields. Flow control is the core of the system. By adjusting the fluid flow rate through valves, it directly determines the movement speed and output force of the actuator. This control is extremely necessary, as it ensures that the equipment responds to load changes, operates smoothly, and avoids vibration, energy waste, or component damage caused by unstable flow rates.

[0003] A search revealed a flow regulating control valve disclosed in Chinese Patent Publication No. CN220956248U, which includes a valve body with mounting seats on both sides. A motor is fixedly connected to the mounting seat on the side closest to the valve body. The flow regulating control valve provided by this utility model starts the motor, and the motor drives the lead screw to rotate. When the lead screw rotates, the slider and the lead screw are in a threaded connection.

[0004] While the above solution can regulate flow, there is still room for improvement in practical applications. In the current device, the closing plates of the flow channels on both sides are driven by independent motors. If there is a deviation in the response speed or stroke of the motors on both sides, it may lead to pressure imbalance inside the valve body, causing hydraulic shock or seal failure, resulting in low stability. To address this issue, we provide a hydraulic device for a vertically lifting tailgate to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic device for a vertically lifting tailgate in order to solve the above-mentioned problems, thereby addressing the issues of deviation in response speed or stroke of the closing plates on both sides and low stability in the prior art.

[0006] This utility model is achieved through the following technical solution: a hydraulic device for a vertical lifting tailgate, including a hydraulic control device housing, wherein an adjustment mechanism is provided inside the hydraulic control device housing, and the adjustment mechanism includes an oil inlet and a flow channel, wherein the oil inlet and the flow channel are connected.

[0007] The inner wall of the housing of the hydraulic control device is rotatably connected to a bidirectional adjusting screw, and the outer surface of the bidirectional adjusting screw is threadedly connected to a driven adjusting arm. The outer surface of the driven adjusting arm is slidably connected to the housing of the hydraulic control device, and a connecting rod is fixedly connected to the end of the driven adjusting arm away from the bidirectional adjusting screw.

[0008] Preferably, a flow-limiting ball is fixedly connected to the end of the connecting rod away from the driven adjusting arm, and a temperature sensor is fixedly connected to the outer surface of the flow-limiting ball. By setting the temperature sensor, the temperature of the hydraulic oil inside the housing of the hydraulic control device can be monitored in real time.

[0009] Preferably, the inner wall of the flow channel is fitted with a sealing plug, and the inner wall of the sealing plug is fixedly connected to the connecting rod. The sealing plug can seal the flow channel and effectively prevent hydraulic oil from overflowing.

[0010] Preferably, a limiting plate is fixedly connected to the outer surface of the connecting rod, and the outer surface of the limiting plate is slidably connected to the flow channel. By driving the driven adjusting arm to slide inside the housing of the hydraulic control device, the limiting plate can be driven to slide synchronously in the flow channel.

[0011] Preferably, a drive motor is fixedly connected to the inner wall of the housing of the hydraulic control device, and the output end of the drive motor is fixedly connected to the bidirectional adjusting screw. By starting the drive motor, the bidirectional adjusting screw can be effectively driven to rotate.

[0012] Preferably, the housing of the hydraulic control device is provided with a cooling mechanism, which includes an oil outlet pipe. The outer surface of the oil outlet pipe is fixedly connected to the housing of the hydraulic control device. A spiral cooling pipe is sleeved on the outer surface of the oil outlet pipe. The outer surface of the spiral cooling pipe is fixedly connected to the housing of the hydraulic control device. The oil outlet pipe is made of a heat-conducting material, so that the heated hydraulic oil can efficiently dissipate heat when flowing in the oil outlet pipe.

[0013] Preferably, a cooling device body is fixedly connected to the bottom surface of the housing of the hydraulic control device. The two ends of the spiral cooling pipe are fixedly connected to the output end and the input end of the cooling device body, respectively. By starting the cooling device body, the spiral cooling pipe can be cooled, so that the cooled spiral cooling pipe can exchange heat with the oil outlet pipe, effectively absorbing the heat of the hydraulic oil in the oil outlet pipe, thereby ensuring the stability of the hydraulic oil viscosity, effectively improving the system response accuracy, reducing component wear and oil oxidation caused by high temperature, reducing the failure rate, and ensuring the long-term reliable operation of the equipment.

[0014] This utility model provides a hydraulic device for a vertically lifting tailgate, which has the following beneficial effects:

[0015] 1. The hydraulic device of this vertical lifting tailgate achieves precise control of the hydraulic oil flow rate inside the hydraulic control device housing through the coordinated arrangement of components in the adjustment mechanism. This improvement ensures that the two flow-limiting balls can move synchronously, effectively avoiding the situation in traditional devices where the response speed or stroke of the two flow-limiting balls deviates during flow regulation, leading to pressure imbalance inside the hydraulic control device housing, and further enhancing the stability of this device.

[0016] 2. The hydraulic device of this vertical lifting tailgate, through the coordinated arrangement of components in the cooling mechanism, can dissipate heat and cool down the hydraulic oil inside the housing of the hydraulic control device. This design can ensure the stability of hydraulic oil viscosity, effectively improve the system response accuracy, reduce component wear and oil oxidation caused by high temperature, reduce the failure rate, and ensure the long-term reliable operation of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the bidirectional adjusting screw of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the adjustment mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the cooling mechanism of this utility model.

[0021] [Explanation of Key Component Symbols]

[0022] 1. Housing of the hydraulic control device;

[0023] 2. Adjustment mechanism; 201. Oil inlet; 202. Flow channel; 203. Bidirectional adjusting screw; 204. Driven adjusting arm; 205. Connecting rod; 206. Flow limiting ball; 207. Temperature sensor; 208. Sealing plug; 209. Limiting plate; 210. Drive motor;

[0024] 3. Cooling mechanism; 301. Oil outlet pipe; 302. Spiral cooling pipe; 303. Cooling equipment body. Detailed Implementation

[0025] This utility model embodiment provides a hydraulic device for a vertically lifting tailgate.

[0026] Please see Figure 1 , Figure 2 and Figure 3The device includes a hydraulic control device housing 1. An adjustment mechanism 2 is provided inside the hydraulic control device housing 1. The adjustment mechanism 2 includes an oil inlet 201 and a flow channel 202. The oil inlet 201 and the flow channel 202 are connected. When hydraulic oil enters the oil inlet 201, it can be effectively diverted to the two flow channels 202. A sealing plate is installed on the top surface of the hydraulic control device housing 1 by bolts. The sealing plate facilitates the disassembly, assembly and maintenance of the internal components of the hydraulic control device housing 1 in the future.

[0027] A bidirectional adjusting screw 203 is rotatably connected to the inner wall of the hydraulic control device housing 1. A driven adjusting arm 204 is threadedly connected to the outer surface of the bidirectional adjusting screw 203. The outer surface of the driven adjusting arm 204 is slidably connected to the hydraulic control device housing 1. A connecting rod 205 is fixedly connected to the end of the driven adjusting arm 204 away from the bidirectional adjusting screw 203. The bidirectional adjusting screw 203 and the driven adjusting arm 204 are made of high-strength, high-temperature resistant materials, so that when the bidirectional adjusting screw 203 is driven to rotate, it can effectively drive the two driven adjusting arms 204 to slide closer to or further away from each other within the hydraulic control device housing 1.

[0028] One end of the connecting rod 205 away from the driven adjusting arm 204 is fixedly connected to a flow limiting ball 206. A temperature sensor 207 is fixedly connected to the outer surface of the flow limiting ball 206. By setting the temperature sensor 207, the temperature of the hydraulic oil inside the housing 1 of the hydraulic control device can be monitored in real time. By driving the flow limiting ball 206 to move within the flow channel 202, the flow rate of the hydraulic oil in the flow channel 202 can be effectively controlled.

[0029] The inner wall of the flow channel 202 is fitted with a sealing plug 208. The inner wall of the sealing plug 208 is fixedly connected to the connecting rod 205. The sealing plug 208 can seal the flow channel 202 and effectively prevent hydraulic oil from overflowing.

[0030] The outer surface of the connecting rod 205 is fixedly connected to the limiting plate 209. The outer surface of the limiting plate 209 is slidably connected to the flow channel 202. By driving the driven adjusting arm 204 to slide inside the hydraulic control device housing 1, the limiting plate 209 can be driven to slide synchronously inside the flow channel 202, making the connecting rod 205 more stable during movement.

[0031] A drive motor 210 is fixedly connected to the inner wall of the housing 1 of the hydraulic control device. The output end of the drive motor 210 is fixedly connected to the bidirectional adjusting screw 203. By starting the drive motor 210, the bidirectional adjusting screw 203 can be effectively driven to rotate. The drive motor 210 is a common electrical device in the prior art. This application will not elaborate on its model and internal structure. It can also be replaced by other power sources.

[0032] Please refer to it again. Figure 1 , Figure 2 and Figure 4 The hydraulic control device housing 1 is equipped with a cooling mechanism 3 inside. The cooling mechanism 3 includes an oil outlet pipe 301. The outer surface of the oil outlet pipe 301 is fixedly connected to the hydraulic control device housing 1. A spiral cooling pipe 302 is sleeved on the outer surface of the oil outlet pipe 301. The outer surface of the spiral cooling pipe 302 is fixedly connected to the hydraulic control device housing 1. The oil outlet pipe 301 is made of a heat-conducting material, so that the heated hydraulic oil can efficiently dissipate heat when flowing in the oil outlet pipe 301. The spiral cooling pipe 302 is spirally wound on the surface of the oil outlet pipe 301, so that the spiral cooling pipe 302 can be heated more comprehensively.

[0033] A cooling device body 303 is fixedly connected to the bottom surface of the housing 1 of the hydraulic control device. The two ends of the spiral cooling pipe 302 are fixedly connected to the output end and the input end of the cooling device body 303, respectively. By starting the cooling device body 303, the spiral cooling pipe 302 can be cooled, so that the cooled spiral cooling pipe 302 can exchange heat with the oil outlet pipe 301, effectively absorbing the heat of the hydraulic oil in the oil outlet pipe 301, thereby ensuring the stability of the hydraulic oil viscosity, effectively improving the system response accuracy, reducing component wear and oil oxidation caused by high temperature, reducing the failure rate, and ensuring the long-term reliable operation of the equipment.

[0034] The structural diagrams of the components shown in the attached figures are exemplary. The specific implementation should be adapted and optimized by considering the functional requirements, assembly conditions and process limitations in the actual application scenario, and adjusting the structural parameters, size specifications and connection methods accordingly.

[0035] Working principle: First, hydraulic oil enters from the inlet 201 and flows into the flow channel 202. The drive motor 210 drives the bidirectional adjusting screw 203 to rotate. The rotation of the bidirectional adjusting screw 203, through meshing force, causes the two driven adjusting arms 204 to slide synchronously within the hydraulic control device housing 1. The synchronous movement of the two driven adjusting arms 204 drives the two connecting rods 205 to move synchronously. During the synchronous movement of the connecting rods 205, the combined action of the flow-limiting ball 206 and the sealing plug 208 effectively stabilizes the flow rate of the hydraulic oil in the flow channel 202. This improvement ensures that the two flow-limiting balls 206 can move synchronously, effectively avoiding the problem of inconsistent response speed or stroke of the two flow-limiting balls 206 in traditional devices when adjusting flow. Deviations can cause pressure imbalance inside the housing 1 of the hydraulic control device. Secondly, after the hydraulic oil flows into the flow channel 202, which is narrower than the inlet hole 201, the oil temperature will rise according to the pressure. When the oil temperature exceeds the threshold set by the temperature sensor 207, the temperature sensor 207 will immediately send an opening and closing command to the cooling device body 303. When the cooling device body 303 is opened, it will cool the spiral cooling pipe 302. The cooled spiral cooling pipe 302 will exchange heat with the oil outlet pipe 301, effectively dissipating heat and cooling the hydraulic oil in the oil outlet pipe 301, thereby ensuring the stability of the hydraulic oil viscosity, effectively improving the system response accuracy, reducing component wear and oil oxidation caused by high temperature, reducing the failure rate, and ensuring the long-term reliable operation of the equipment.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic device for a vertically lifting tailgate, comprising a hydraulic control device housing (1), characterized in that: The hydraulic control device housing (1) is provided with an adjustment mechanism (2) inside. The adjustment mechanism (2) includes an oil inlet (201) and a flow channel (202), and the oil inlet (201) and the flow channel (202) are connected. The inner wall of the housing (1) of the hydraulic control device is rotatably connected to a bidirectional adjusting screw (203). The outer surface of the bidirectional adjusting screw (203) is threadedly connected to a driven adjusting arm (204). The outer surface of the driven adjusting arm (204) is slidably connected to the housing (1) of the hydraulic control device. A connecting rod (205) is fixedly connected to one end of the driven adjusting arm (204) away from the bidirectional adjusting screw (203).

2. The hydraulic device for a vertically lifting tailgate according to claim 1, characterized in that: The end of the connecting rod (205) away from the driven adjusting arm (204) is fixedly connected to a flow-limiting ball (206), and a temperature sensor (207) is fixedly connected to the outer surface of the flow-limiting ball (206).

3. The hydraulic device for a vertically lifting tailgate according to claim 1, characterized in that: The inner wall of the flow channel (202) is fitted with a sealing plug (208), and the inner wall of the sealing plug (208) is fixedly connected to the connecting rod (205).

4. The hydraulic device for a vertically lifting tailgate according to claim 1, characterized in that: The outer surface of the connecting rod (205) is fixedly connected to the limiting disk (209), and the outer surface of the limiting disk (209) is slidably connected to the flow channel (202).

5. The hydraulic device for a vertically lifting tailgate according to claim 1, characterized in that: A drive motor (210) is fixedly connected to the inner wall of the housing (1) of the hydraulic control device, and the output end of the drive motor (210) is fixedly connected to the bidirectional adjusting screw (203).

6. The hydraulic device for a vertically lifting tailgate according to claim 1, characterized in that: The hydraulic control device housing (1) is provided with a cooling mechanism (3) inside. The cooling mechanism (3) includes an oil outlet pipe (301). The outer surface of the oil outlet pipe (301) is fixedly connected to the hydraulic control device housing (1). A spiral cooling pipe (302) is sleeved on the outer surface of the oil outlet pipe (301). The outer surface of the spiral cooling pipe (302) is fixedly connected to the hydraulic control device housing (1).

7. The hydraulic device for a vertically lifting tailgate according to claim 6, characterized in that: The bottom surface of the housing (1) of the hydraulic control device is fixedly connected to the cooling equipment body (303), and the two ends of the spiral cooling pipe (302) are fixedly connected to the output end and the input end of the cooling equipment body (303) respectively.

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