Control device for adjusting hanging height through flow

Abstract

The utility model discloses a control device capable of adjusting hanging height through flow. The control device comprises a posture controller, a hanging control box, a flow meter, a stop valve and a hanging executing mechanism. The suspension actuating mechanism comprises a pneumoelectric valve, an electromagnetic directional valve, a power cylinder and a pressure accumulator, the high-pressure air source is connected with the power cylinder through the pneumoelectric valve, the hydraulic source is connected with the power cylinder after sequentially passing through the electromagnetic directional valve, the stop valve, the flowmeter and the pressure accumulator, and the posture controller is electrically connected with the pneumoelectric valve, the electromagnetic directional valve and the suspension control box. The suspension control box is electrically connected with the stop valve and the flow valve. The suspension device of the special vehicle solves the problem that a driver is inconvenient to operate when the vehicle normally lands ashore or lands a naval vessel due to the fact that the suspension device of the existing special vehicle cannot feed back position information during adjustment, and the use safety is improved; meanwhile, preset height adjustment of the vehicle suspension device is achieved, then preset adjustment of the distance between the vehicle bottom and the ground is achieved, and the operation difficulty of a driver is lowered.

Description

Technical Field

[0001] This utility model relates to a control device for adjusting the suspension height by means of flow rate. Background Technology

[0002] A certain special vehicle employs an adjustable hydropneumatic suspension system, installed on each of the road wheels on both sides of the inner deck. Each hydropneumatic suspension consists of a power cylinder, accumulator, etc., utilizing hydraulic pressure transmission and nitrogen as the elastic medium in the hydropneumatic spring suspension. When the special vehicle is traveling on land, the vehicle body is subjected to impacts and vibrations from the ground. The suspension system's function is to mitigate these impacts and dampen vibrations, thereby improving driving stability and operational reliability. When navigating on water, the suspension system is used to retract the road wheels and tracks, reducing the water resistance of the moving parts and increasing the vehicle's speed. When the special vehicle is landing on land or boarding a ship, the suspension system needs to be adjusted to lower the road wheels and tracks. The position of the road wheels and tracks cannot be directly observed or fed back, which can affect the vehicle's safety on water. In severe cases, it can prevent the vehicle from successfully landing on land or boarding a ship; or, due to restrictions on the height of ship entrances and exits, an unsuitable vehicle height can cause the vehicle to exceed its height limit, ultimately preventing successful landing. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a control device that adjusts the suspension height by means of flow rate, which is simple in structure and reliable in operation.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is: a control device for adjusting suspension height by flow rate, used to control the suspension actuator to realize the preset height adjustment of the vehicle bottom clearance from the ground, including an attitude controller for controlling the suspension actuator, a suspension control box for setting specific logic judgments of the flow meter and determining whether the suspension actuator has been executed in place, a flow meter for recording and feeding back the oil flow in the oil circuit in real time, a shut-off valve for cutting off the oil circuit, and a suspension actuator; the suspension actuator includes a pneumatic-electric valve, a solenoid directional valve, a power cylinder, and an accumulator, a high-pressure air source is connected to the power cylinder through the pneumatic-electric valve, and a hydraulic source is connected to the power cylinder in sequence through the solenoid directional valve, the shut-off valve, the flow meter, and the accumulator, the attitude controller is electrically connected to the pneumatic-electric valve, the solenoid directional valve, and the suspension control box, and the suspension control box is electrically connected to the shut-off valve and the flow meter.

[0005] The aforementioned control device for adjusting suspension height via flow rate has an attitude controller and suspension control box connected via CAN communication.

[0006] The aforementioned control device for adjusting suspension height via flow rate has a suspension control box that sets a preset value for the number of pulses per flow meter. The preset value is adjusted within the flow meter's range to achieve the corresponding suspension height, thus realizing the preset height adjustment of the vehicle's undercarriage height from the ground.

[0007] The aforementioned control device for adjusting the suspension height via flow rate includes a suspension control box equipped with multiple flow meter indicator lights. When the flow meter indicator light is off, it indicates that no pulses have been received. When the flow meter indicator light is on and flashing, it indicates that pulses are being received. When the flow meter indicator light is constantly on, it indicates that the number of pulses received has reached a preset value.

[0008] The aforementioned control device for adjusting suspension height via flow rate includes a display screen for the attitude controller.

[0009] The aforementioned control device for adjusting the suspension height by means of flow rate uses a turbine flow meter or a gear flow meter.

[0010] The aforementioned control device for adjusting suspension height via flow rate includes a shut-off valve that operates in one or more linkages with the suspension control box.

[0011] The beneficial effects of this utility model are as follows: This utility model solves the problem that the existing special vehicle suspension device cannot provide position information during adjustment, which leads to inconvenience for the driver when the vehicle is normally landing on land or boarding a ship, thus improving the safety of use; at the same time, it realizes the preset height adjustment of the vehicle suspension device, thereby realizing the preset adjustment of the vehicle bottom height from the ground, reducing the difficulty of operation for the driver and improving the convenience of operation and use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1 As shown, a control device for adjusting suspension height by flow rate is used to control the suspension actuator to achieve preset height adjustment of the vehicle's undercarriage height from the ground. It includes an attitude controller for controlling the suspension actuator, a suspension control box for setting specific logic judgments for the flow meter and determining whether the suspension actuator has performed its function, a flow meter for real-time recording and feedback of oil flow in the oil circuit, a shut-off valve for cutting off the oil circuit, and the suspension actuator. The suspension actuator includes a pneumatic-electric valve, a solenoid directional valve, a power cylinder, and an accumulator. A high-pressure air source is connected to the power cylinder via the pneumatic-electric valve, and a hydraulic source is connected to the power cylinder sequentially via the solenoid directional valve, the shut-off valve, the flow meter, and the accumulator. The attitude controller is electrically connected to the pneumatic-electric valve, the solenoid directional valve, and the suspension control box, and the suspension control box is electrically connected to the shut-off valve and the flow meter.

[0015] The attitude controller and the suspension control box are connected via CAN communication, and are equipped with communication fault detection and indication.

[0016] The suspension control box sets a preset value for the number of pulses per flow meter. The preset value is adjusted within the flow meter's range to achieve the corresponding suspension height, thus realizing the preset height adjustment of the vehicle's undercarriage height from the ground.

[0017] The suspension control box is equipped with multiple flow meter indicator lights. When the flow meter indicator light is not lit, it means that no pulses have been received. When the flow meter indicator light is lit and flashing, it means that pulses are being received. When the flow meter indicator light is constantly lit, it means that the number of pulses received has reached the preset value.

[0018] The attitude controller is equipped with a display screen, which can intuitively display the entire suspension adjustment control process and provide text prompts for the suspension adjustment results.

[0019] The flow meter used is either a turbine flow meter or a gear flow meter.

[0020] The shut-off valve can be linked in one or more ways according to the suspension control box, and has the characteristics of fast response and easy installation.

[0021] The working principle of this utility model is as follows: Before suspension adjustment, the suspension control box sends a "suspension adjustment" command. After receiving the command, the attitude controller starts to detect the vehicle working condition and suspension status. After determining that the vehicle is in water working condition and the suspension has been in place, it sends a "suspension adjustment ready" command to the suspension control box. At the same time, the suspension control box controls the connection of the power supply of the multi-channel flow meter.

[0022] During suspension adjustment, the attitude controller sends a suspension release action, controlling the suspension actuator to move. At the same time, the suspension control box monitors the cumulative pulse count of the multi-channel flow meters in real time. When the cumulative pulse count reaches a preset value, the corresponding shut-off valve is activated. After specific logic judgment, the multi-channel flow meters send a suspension position command to the attitude controller. The attitude controller controls the suspension actuator to stop moving and sends a "suspension adjustment completed" command to the suspension control box. Simultaneously, the suspension control box disconnects the power supply to the multi-channel flow meters and the corresponding shut-off valve.

Claims

1. A control device for adjusting suspension height via flow rate, used to control the suspension actuator to achieve preset height adjustment of the vehicle's undercarriage height from the ground, characterized in that: The system includes an attitude controller for controlling the suspension actuator, a suspension control box for setting specific logic judgments for the flow meter and determining whether the suspension actuator has performed its function, a flow meter for recording and feeding back the oil flow in the oil circuit in real time, a shut-off valve for cutting off the oil circuit, and the suspension actuator. The suspension actuator includes a pneumatic-electric valve, a solenoid directional valve, a power cylinder, and an accumulator. A high-pressure air source is connected to the power cylinder via the pneumatic-electric valve, and a hydraulic source is connected to the power cylinder via the solenoid directional valve, the shut-off valve, the flow meter, and the accumulator in sequence. The attitude controller is electrically connected to the pneumatic-electric valve, the solenoid directional valve, and the suspension control box, and the suspension control box is electrically connected to the shut-off valve and the flow meter.

2. The control device for adjusting suspension height by flow rate according to claim 1, characterized in that: The attitude controller and the suspension control box are connected via CAN communication.

3. The control device for adjusting suspension height by flow rate according to claim 2, characterized in that: The suspension control box sets a preset value for the number of pulses per flow meter. The preset value is adjusted within the flow meter's range to achieve the corresponding suspension height, thus realizing the preset height adjustment of the vehicle's undercarriage height from the ground.

4. The control device for adjusting suspension height by flow rate according to claim 3, characterized in that: The suspension control box is equipped with multiple flow meter indicator lights. When the flow meter indicator light is not lit, it means that no pulses have been received. When the flow meter indicator light is lit and flashing, it means that pulses are being received. When the flow meter indicator light is constantly lit, it means that the number of pulses received has reached the preset value.

5. The control device for adjusting suspension height by flow rate according to claim 1, characterized in that: The attitude controller is equipped with a display screen.

6. The control device for adjusting suspension height by flow rate according to claim 1, characterized in that: The flow meter used is either a turbine flow meter or a gear flow meter.

7. The control device for adjusting suspension height by flow rate according to claim 1, characterized in that: The shut-off valve is linked in one or more ways according to the suspension control box.

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