CN-117189701-B - Hydraulic system of vehicle-mounted gun supporting device based on diesel engine and driving method thereof

Abstract

The invention relates to a hydraulic system of a vehicle-mounted gun supporting device based on a diesel engine and a driving method thereof, wherein the diesel engine is used as a power source of the vehicle-mounted gun hydraulic system, the diesel engine drives the hydraulic pump to work, provides hydraulic oil with required pressure and flow for the executing mechanism, and realizes automatic control of the action of the hydraulic oil. Continuous fuel supply is provided for the diesel engine through the vehicle-mounted fuel tank so as to ensure long-time continuous operation of the diesel engine. The diesel engine and the gear pump are integrated into a whole, and the vehicle-mounted fuel tank has the advantages of high power, compact structure, quick start, low maintenance cost, excellent controllability and stability, can provide fuel for the chassis engine during working, can provide continuous fuel supply for the diesel engine in the power source, greatly improves the endurance of the diesel engine as the power source, and can be well adapted to the overall arrangement, use requirements, reliability and guarantee of the vehicle-mounted gun.

Inventors

• SUN JIA
• WANG WEI
• MENG QINGWEI

Assignees

• 南京理工军邦特种智能装备研究院有限公司

Dates

Publication Date

20260508

Application Date

20221226

Claims (7)

1. 1. A hydraulic system for a diesel-based on-board artillery support device, comprising: A chassis frame; The power source is connected with the chassis frame through a bell-shaped shock absorber; The hydraulic oil tank is arranged on the chassis frame; the gear pump oil suction filter element, the temperature sensor, the liquid level relay, the oil return filter and the oil tank oil drain ball valve are respectively communicated with the hydraulic oil tank; the gear pump is communicated with the gear pump oil suction filter element; the diesel engine is connected with the input end of the gear pump; The high-pressure filter is connected with the output end of the gear pump; The check valve is communicated with the high-pressure filter and the jack cylinder loop and the large frame cylinder loop; The jack cylinder loop is used for controlling the lifting actions of N jack cylinders so as to realize the automatic lifting of the vehicle-mounted artillery, wherein N is more than or equal to 1; The large frame oil cylinder loop is used for controlling the retraction and extension actions of N large frame oil cylinders so as to realize the automatic support of the vehicle-mounted artillery, wherein N is more than or equal to 1; the electromagnetic reversing valve group is communicated with the one-way valve and consists of 2N electromagnetic reversing valves, wherein N electromagnetic reversing valves are used for controlling the jack cylinder, and the rest N electromagnetic reversing valves are used for controlling the large frame cylinder; The N electromagnetic reversing valves are used for controlling the jack cylinders to be communicated with the N jack hydraulic locks; the N electromagnetic directional valves are used for controlling the large frame oil cylinders to be communicated with N large frame hydraulic locks; The electromagnetic reversing valve group consists of four electromagnetic reversing valves, namely a left jack electromagnetic reversing valve, a right jack electromagnetic reversing valve, a left big frame electromagnetic reversing valve and a right big frame electromagnetic reversing valve which are communicated with the one-way valve; The hydraulic system further includes: A left jack hydraulic lock communicated with the left jack electromagnetic directional valve, a left jack hydraulic lock communicated with the left jack hydraulic lock, a right jack hydraulic lock communicated with the right jack electromagnetic directional valve, a right jack hydraulic lock communicated with the right jack hydraulic lock, a left big frame hydraulic lock communicated with the left big frame electromagnetic directional valve, a left big frame hydraulic lock communicated with the left big frame hydraulic lock, a right big frame hydraulic lock communicated with the right big frame electromagnetic directional valve, and a right big frame hydraulic lock communicated with the right big frame hydraulic lock; the power source comprises a gear pump communicated with the hydraulic oil tank and a diesel engine connected with the gear pump; The oil pumping port end through pipe joint is arranged at an oil pumping port of the gear pump, the oil pumping port end through pipe joint is connected with the hydraulic oil tank through an oil pumping hose, the oil pumping port end through pipe joint is arranged at an oil outlet of the gear pump, and the oil pumping port end through pipe joint is connected with a pressure oil way of a hydraulic driving system through an oil pumping hose; The vehicle-mounted fuel tank is used for providing continuous fuel supply for the diesel engine, the gear pump is driven to absorb hydraulic oil from the hydraulic oil tank after the ignition and the starting of the diesel engine, the hydraulic oil is conveyed to the hydraulic driving system at preset pressure and flow, and the actuating mechanism of the vehicle-mounted gun is controlled to finish the action.
2. 2. The hydraulic system of the diesel-engine-based on-vehicle artillery support device of claim 1, further comprising an oil return air cooler in communication with the left jack electromagnetic directional valve, the right jack electromagnetic directional valve, the left large frame electromagnetic directional valve, and the right large frame electromagnetic directional valve, an oil inlet path pressure sensor in communication with an oil outlet end of the check valve, an oil return path pressure sensor in communication with an oil inlet end of the oil return air cooler, and an electromagnetic spill valve in communication with the oil outlet end of the check valve and the oil inlet end of the oil return air cooler; the oil outlet end of the oil return air cooler is communicated with the oil inlet end of the oil return filter.
3. 3. The hydraulic system of the diesel engine-based vehicle-mounted gun supporting device is characterized in that when the left jack electromagnetic directional valve, the right jack electromagnetic directional valve, the left large frame electromagnetic directional valve or the right large frame electromagnetic directional valve are in an intermediate station, a rod cavity and a rodless cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder are in an open circuit state with the check valve, the left jack hydraulic lock, the right jack hydraulic lock, the left large frame hydraulic lock or the right large frame hydraulic lock are in a conducting state with the oil return air cooler, and hydraulic oil output by the gear pump directly returns to the hydraulic oil tank through the high-pressure filter, the check valve, the electromagnetic overflow valve and the oil return air cooler.
4. 4. The hydraulic system of the diesel engine-based vehicle-mounted gun supporting device is characterized in that when the left jack electromagnetic directional valve, the right jack electromagnetic directional valve, the left large frame electromagnetic directional valve or the right large frame electromagnetic directional valve are in a station a, a rod cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder is in a conducting state with a one-way valve, a rodless cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder is in a conducting state with an oil return air cooler, the gear pump conveys hydraulic oil into the rod cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder, a piston rod of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder is retracted into the oil cylinder, and the oil in the rodless cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder returns to the hydraulic oil tank through the oil return air cooler.
5. 5. The hydraulic system of the diesel engine-based vehicle-mounted gun supporting device is characterized in that when the left jack electromagnetic directional valve, the right jack electromagnetic directional valve, the left large frame electromagnetic directional valve or the right large frame electromagnetic directional valve is at a station b, a rodless cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder is in a conducting state with a one-way valve, a rod cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder is in a conducting state with an oil return air cooler, the gear pump conveys hydraulic oil into the rodless cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder, a piston rod of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder extends out of the oil cylinder, and the oil in the rod cavity of the left jack oil cylinder, the right jack oil cylinder, the left large frame oil cylinder or the right large frame oil cylinder returns to the hydraulic oil tank through the oil return air cooler.
6. 6. A hydraulic driving method of a vehicle-mounted gun supporting device, which is realized based on the hydraulic system of the vehicle-mounted gun supporting device based on the diesel engine according to claim 2, and is characterized in that continuous fuel oil supply is provided for the diesel engine through a vehicle-mounted fuel tank, and a gear pump is driven to suck hydraulic oil from the hydraulic oil tank after the ignition and the starting of the diesel engine, and then the hydraulic oil is conveyed into the hydraulic driving system at a preset pressure and flow rate.
7. 7. The hydraulic drive method according to claim 6, comprising the steps of: When the electromagnet c of the electromagnetic overflow valve is powered on, the electromagnetic overflow valve is in a pressure building working state, and when the load of an actuating mechanism exceeds the set pressure of the electromagnetic overflow valve, the electromagnetic overflow valve is opened to overflow for overload protection, so that the pressure of the hydraulic system is kept at a constant value or a constant range; The jack cylinder loop realizes the extending and retracting actions of the left jack cylinder and the right jack cylinder through the directional control of the left jack electromagnetic directional valve and the right jack electromagnetic directional valve, and realizes the locking of the positions of the left jack cylinder and the right jack cylinder after the left jack cylinder and the right jack cylinder move in place through the pressure maintaining function of the left jack hydraulic lock and the right jack hydraulic lock; The large frame oil cylinder loop realizes the extending and retracting actions of the left large frame oil cylinder and the right large frame oil cylinder through the directional control of the left large frame electromagnetic directional valve and the right large frame electromagnetic directional valve, and realizes the locking of the positions of the left large frame oil cylinder and the right large frame oil cylinder after the left large frame oil cylinder and the right large frame oil cylinder move in place through the pressure maintaining function of the left large frame hydraulic lock and the right large frame hydraulic lock.

Description

Hydraulic system of vehicle-mounted gun supporting device based on diesel engine and driving method thereof Technical Field The invention relates to the technical field of artillery, in particular to a hydraulic system of a vehicle-mounted artillery supporting device based on a diesel engine and a driving method thereof. Background The supporting device is an important component of the vehicle-mounted gun system and is mainly used for bearing recoil force during gun firing, so that the support stability of a vehicle body is ensured. The supporting device adopts a hydraulic transmission system and mainly comprises a jack oil cylinder loop and a large frame oil cylinder loop, wherein the two oil cylinder loops respectively and automatically control the lifting of the left jack oil cylinder and the right jack oil cylinder and the retraction of the left large frame oil cylinder and the right large frame oil cylinder, so that the automatic support of a vehicle body is realized. In addition, hydraulic locks are arranged in the oil cylinder loops so as to realize reliable locking of the oil cylinder in place. The hydraulic system of the vehicle-mounted gun supporting device based on the diesel engine mostly adopts a chassis engine or a direct current motor as a power source to drive a hydraulic pump to work, so as to provide hydraulic oil with required pressure and flow for the supporting device and realize automatic control of the action of an executing mechanism of the supporting device. When the chassis engine is used as a power source, a mechanical mounting interface of the hydraulic pump is required to be manufactured on the chassis engine in a non-calibrated mode, which increases the size of the engine and also increases the power of the chassis engine. When the hydraulic pump is in failure to cause locking during operation, the chassis engine may be severely overloaded to cause mechanical damage, so that the vehicle cannot normally run. In addition, if the shaft end seal of the hydraulic pump fails, hydraulic oil inside the pump can enter the engine, resulting in damage to the chassis engine. Therefore, the scheme of acquiring power from the chassis engine by the hydraulic pump has great technical risk, and is easy to generate permanent irreversible damage to the chassis engine, thereby causing great economic loss. When the direct current motor is used as a power source, the vehicle-mounted storage battery is required to provide continuous power supply, but the capacity of the vehicle-mounted storage battery is limited generally, so that the direct current motor is poor in cruising ability as the power source and can be used for emergency in a short time. In addition, when the electric quantity of the vehicle-mounted storage battery is used excessively, the phenomenon that the vehicle cannot be ignited and started possibly occurs, and finally the vehicle is paralyzed. Diesel engines are engines that burn diesel fuel to obtain energy release. The diesel engine is an internal combustion engine which takes diesel oil as fuel, utilizes high temperature and high pressure generated by air compressed in a cylinder to lead the diesel oil injected into the cylinder to self-ignite and expand to do work. The diesel engine has the characteristics of high power, compact structure, reliable use, excellent technical indexes such as dynamic property and economy, quick start, simple operation, convenient maintenance and the like. In addition, the main parts in the diesel engine are made of aluminum alloy materials in a large quantity, and the diesel engine has the characteristic of light weight. At present, the diesel engine is widely applied to industrial automation and national defense weapon industry, but the diesel engine is not widely applied to the industry as a power source of an artillery hydraulic system. Disclosure of Invention The invention aims to provide a hydraulic system of a vehicle-mounted gun supporting device based on a diesel engine, and further provides a driving method based on the hydraulic system. The continuous fuel supply is provided for the diesel engine through the vehicle-mounted fuel tank so as to ensure the continuous operation of the diesel engine for a long time, thereby solving the problems in the prior art. According to the technical scheme, in the first aspect, a hydraulic system of a vehicle-mounted gun supporting device based on a diesel engine is provided, and comprises a chassis frame, a power source, a hydraulic oil tank and a hydraulic control valve group. The power source is connected with the chassis frame through a bell-shaped shock absorber. The hydraulic oil tank is arranged on the chassis frame, and the power source is communicated with the hydraulic oil tank. The power source comprises a gear pump communicated with the hydraulic oil tank and a diesel engine connected with the gear pump. The oil pumping port end through pipe joint is arranged at an oil pumping port of the gear