Disassembling and assembling tool for chassis protection assembly of special vehicle

Abstract

The invention discloses a special vehicle chassis protection assembly disassembling and assembling tool which is structurally characterized in that four hydraulic oil cylinders serve as lifting oil cylinders, are arranged at the bottom of a special vehicle and serve as four fixing points surrounding the mass center of a protection assembly; the four hydraulic oil cylinders are connected with a standby power socket of the special vehicle through power supply cables respectively, and 24V direct current power supply is achieved. The four hydraulic oil cylinders are connected with the hydraulic power system through the high-pressure oil pipe assemblies respectively, the control panel is connected with the hydraulic power system, the control panel is operated to control the four hydraulic oil cylinders to ascend and descend synchronously, or a single oil cylinder to ascend and descend independently, or the single oil cylinder is manually controlled to ascend and descend, and the armored car landmine protection assembly is disassembled and assembled. The hydraulic power system is driven by direct current of the vehicle to work to supply oil to the lifting oil cylinder, and the lifting function is achieved; meanwhile, oil can be supplied to the lifting oil cylinder through a manual hydraulic pump on the hydraulic power system, and the manual control lifting function is achieved.

Description

Technical Field

[0001] The invention belongs to the field of special vehicle maintenance and support systems, and relates to a special vehicle chassis protection component disassembly and assembly tool. Background Art

[0002] With their high mobility, protection and universal platform characteristics, the number of special vehicles in China and abroad is increasing day by day. With the complexity and diversification of the application environment, there are strict requirements for the preparation cycle and maintenance time of special vehicles under normal working conditions. Based on this, the tools required for the preparation and maintenance of special vehicles need to be convenient and fast, and the operation cycle, the number of operators and other factors must meet the vehicle configuration.

[0003] At present, the chassis protection components of special vehicles are made of full-size (completely fit with the bottom of the special vehicle) composite armor material (self-weight ≥ 1450 kg). Usually, disassembly and installation require the cooperation of multiple people. The vehicle needs to be driven to the designated location and then supported by wooden planks and jacked to complete the disassembly and installation before the vehicle can be driven away. The operation process is very cumbersome, the cycle of disassembly and installation of chassis protection components is long, and there are great safety risks.

[0004] At present, the disassembly and assembly tools of chassis protection components of special vehicles are sleepers and jacks. This primitive method has two shortcomings:

[0005] (1) The operation process is complicated and tedious, requiring the cooperation of multiple people to complete, and the efficiency is extremely low.

[0006] (2) The required size of the sleeper wood is 1200mm×600mm×210mm, plus two sets of 3-ton jacks, which are large in size and have poor carrying capacity. Summary of the invention

[0007] (I) Purpose of the invention

[0008] The purpose of the present invention is to provide a special vehicle chassis protection component disassembly and assembly tool, which is domestically produced, resistant to high and low temperatures, and can utilize the direct current drive hydraulic power system of the special vehicle to supply oil to the lifting cylinder to realize the lifting function; at the same time, the lifting cylinder can also be supplied with oil through the manual hydraulic pump on the hydraulic power system to realize the manual control lifting function, and the disassembly and installation of the special vehicle chassis protection component (self-weight ≥ 1450 kg) can be completed within 120 minutes, and the lifting height (the height of the upper end surface of the chassis protection component from the ground) is ≥ 370 mm.

[0009] (II) Technical solution

[0010] In order to solve the above technical problems, the present invention provides a special vehicle chassis protection component disassembly and assembly tool, which includes: a hydraulic power system, a control panel, a power supply cable, a high-pressure oil pipe assembly and four hydraulic cylinders; the four hydraulic cylinders are used as lifting cylinders and are respectively arranged at the bottom of the special vehicle as four fixed points around the center of mass of the protection component; the four hydraulic cylinders are respectively connected to the backup power socket of the special vehicle through power supply cables to realize 24V DC power supply; the four hydraulic cylinders are respectively connected to the hydraulic power system through the high-pressure oil pipe assembly, and the control panel is connected to the hydraulic power system, and the four hydraulic cylinders are controlled to rise and fall synchronously, or a single cylinder is independently raised and lowered, or a single cylinder is manually controlled to rise and fall, so as to realize the disassembly and assembly of the armored vehicle mine protection component.

[0011] Wherein, the hydraulic power system includes an automatic oil source, a manual oil source, and a drive valve; the automatic oil source and the manual oil source are connected in parallel to the drive valve, and the drive valves drive corresponding lifting cylinders respectively.

[0012] Among them, the automatic oil source includes: an oil tank 01, a filter 02, a gear pump 03, a first one-way valve 06, a relief valve 05 and a three-position four-way solenoid valve 07 connected by pipelines, an electric motor 04 and a gear pump 03 are connected by a mechanical structure, the first one-way valve 06 and the relief valve 05 are arranged in parallel, one end is connected to the gear pump 03, and the other end is connected to the three-position four-way solenoid valve 07, forming an automatic oil source.

[0013] The filter 02 filters out impurities in the oil pumped by the gear pump 03 to the oil inlet P of the three-position four-way solenoid valve 07; the gear pump 03 and the motor 04 are connected by a mechanical structure, and the motor 04 rotates after being energized, driving the gear pump 03 to send the oil from the oil tank 01 to the oil inlet P of the three-position four-way solenoid valve 07; the inlet of the relief valve 05 and the outlet of the gear pump 03 are connected by a pipeline, and the outlet of the relief valve 05 is connected to the oil tank 01; when the difference between the inlet pressure value and the outlet pressure value of the relief valve 05 is small, the pressure When it is at the set value, the inlet and outlet are not connected, and the oil delivered by the gear pump 03 is sent to the oil inlet P of the three-position four-way solenoid valve 07 through the first one-way valve 06; when the difference between the inlet pressure value and the outlet pressure value of the relief valve 05 is greater than or equal to the set value, the inlet and outlet are connected, and the oil delivered by the gear pump 03 is sent to the oil inlet P of the three-position four-way solenoid valve 07 through the first one-way valve 06, and at the same time, the excess oil flows back to the oil tank 01 through the relief valve 05, so that the pressure of the oil inlet P of the three-position four-way solenoid valve 07 remains stable.

[0014] Among them, the inlet of the first one-way valve 06 is connected to the outlet of the gear pump 03, and the outlet is connected to the oil inlet P of the three-position four-way solenoid valve 07. The oil pumped out of the gear pump 03 flows to the oil inlet P of the three-position four-way solenoid valve 07 through the first one-way valve 06, and the oil at the oil inlet P of the three-position four-way solenoid valve 07 will not flow back to the gear pump 03; the three-position four-way solenoid valve 07 has 4 channel ports, which are marked as working port A, working port B, oil inlet P, and oil return port T respectively; the oil inlet P is connected to the first one-way valve 06, the oil return port T is connected to the oil tank 01, the working port A is connected to the inlet I port of the synchronous valve group 08 in the drive valve, and the working port B is connected to the return port O port of the distribution valve 26; the three-position four-way solenoid valve 07 has three combination states, and the switching of the three combination states is realized by the energization and de-energization of the electromagnet above it to push the valve core to move in the valve body. When the three-position four-way solenoid valve 07 is on the left When the two electromagnets on both sides of the three-position four-way solenoid valve 07 are powered, the oil inlet P and the working port A are connected, and the high-pressure oil at the oil inlet P passes through the three-position four-way solenoid valve 07 to the inlet I of the synchronous valve group 08, the oil return port T and the working port B are connected, and the return oil at the return port O of the distribution valve 26 flows back to the oil tank 01 through the three-position four-way solenoid valve 07; when the electromagnets on both sides of the three-position four-way solenoid valve 07 are powered off, the oil inlet P and the working port A are disconnected, the oil return port T and the working port B are disconnected, and the oil inlet The high-pressure oil at P and the return oil at the return port O of the distribution valve 26 are blocked, and the oil cannot flow; when the right-side electromagnet of the three-position four-way solenoid valve 07 is energized, the oil inlet P and the working port B are connected, and the high-pressure oil at the oil inlet P passes through the three-position four-way solenoid valve 07 to the return port O of the distribution valve 26, the return oil port T and the working port A are connected, and the return oil at the inlet I of the synchronization valve group 08 flows back to the oil tank 01 through the three-position four-way solenoid valve 07.

[0015] Among them, the manual oil source includes: an oil tank 01, a second one-way valve 21, a hand pump 22, a third one-way valve 23 and a three-position four-way manual valve 25 connected in sequence through pipelines, and a pressure gauge 24 is arranged on the connecting pipeline between the third one-way valve 23 and the three-position four-way manual valve 25 to form a manual oil source.

[0016] Among them, the inlet of the second one-way valve 21 is connected to the oil tank 01, and the outlet is connected to the inlet of the hand pump 22, so that the oil pumped out by the hand pump 22 will not flow back to the oil tank 01; the hand pump 22 sends the oil from the oil tank 01 to the oil inlet P' of the three-position four-way manual valve 25 through the third one-way valve 23 by manual loading; the inlet of the third one-way valve 23 is connected to the outlet of the hand pump 22, and the outlet is connected to the oil inlet P' of the three-position four-way manual valve 25, ensuring that the oil of the hand pump 22 flows to the oil inlet P' of the three-position four-way manual valve 25 through the first one-way valve 06, and the oil at the oil inlet P' of the three-position four-way manual valve 25 will not flow back to the hand pump 22; the pressure gauge 24 is connected to the oil inlet P' of the three-position four-way manual valve 25 through the throttle port, and displays the pressure at the oil inlet P' of the three-position four-way manual valve 25 in real time.

[0017] Among them, the three-position four-way manual valve 25 has four channel ports, which are marked as working port A', working port B', oil inlet P', and oil return port T'; the oil inlet P' is connected to the third one-way valve 23, the oil return port T' is connected to the oil tank 01, the working port A' is connected to the I port of the synchronous valve group 08, and the working port B' is connected to the O port of the distribution valve 26; the three-position four-way manual valve 25 has three combination states, and the switching of the three combination states is achieved by the manual shift handle on the three-position four-way manual valve 25 pushing the valve core to move in the valve body. When the handle of the three-position four-way manual valve 25 is pushed to the left, the oil inlet P' and the working port A' are connected, and the high-pressure oil at the oil inlet P' passes through the three-position four-way manual valve 25 to the synchronous valve group 08 The I port, the return oil port T' and the working port B' are connected, and the return oil at the O port of the distribution valve 26 flows back to the oil tank 01 through the three-position four-way manual valve 25; when the handle of the three-position four-way manual valve 25 is pushed to the middle position, the oil inlet P' and the working port A' are disconnected, the return oil port T' and the working port B' are disconnected, the high-pressure oil at the oil inlet P' and the return oil at the O port of the distribution valve 26 are blocked, and the oil in the system does not flow; when the handle of the three-position four-way manual valve 25 is pushed to the right side, the oil inlet P' and the working port B' are connected, the high-pressure oil at the oil inlet P' passes through the three-position four-way manual valve 25 to the O port of the distribution valve 26, the return oil port T' and the working port A' are connected, and the return oil at the I port of the synchronization valve group 08 flows back to the oil tank 01 through the three-position four-way manual valve 25.

[0018] Wherein, the driving valve includes a synchronous valve group 08, a manual stop valve 09, a pressure regulating valve 10, and a distribution valve 26 connected by pipelines; the driving valve processes the oil entering from the inlet I port and outputs it from the outlet S port with an equal flow rate of oil; at the same time, the oil entering from the outlet S port enters with an equal flow rate and then is discharged from the inlet I port; the synchronous valve group 08 is connected with the manual oil source and the automatic oil source through the inlet I port, and there are multiple outlets, which are respectively connected to the manual stop valve 09; when the loads of multiple outlets of the synchronous valve 08 change, the amount of oil discharged from multiple outlets is the same; when the loads of multiple inlets of the synchronous valve 08 change, the amount of oil entering at multiple inlets is the same; the manual stop valve 09 has two channels, one channel is connected to the synchronous valve 08, and the other channel is connected to the pressure regulating valve 10; the manual stop valve 09 is provided with a handle, and the handle is rotated by hand to two positions, They are marked as "open" and "closed" respectively; when the handle of the manual stop valve 09 is rotated to the "open" position, the two channels of the manual stop valve 09 are connected, and when the handle is rotated to the "closed" position, the two channels of the manual stop valve 09 are disconnected; the pressure-stabilizing valve 10 has two channels and a control port; one channel is connected to the manual stop valve 09, and the other channel is connected to the outlet S port of the lifting cylinder 31, and the control port is connected to the lifting cylinder 31 and the J port of the distribution valve 26; when the oil entering from the direction of the manual stop valve 09 flows into the pressure-stabilizing valve 10, it is directly connected to the outlet S port; if the pressure of the control port J does not reach the set opening value, the oil flowing in from the outlet S port will not flow out from the other channel of the pressure-stabilizing valve 10; if the pressure of the control port J reaches the set opening value, the oil flowing in from the outlet S port will flow out from the other channel of the pressure-stabilizing valve 10.

[0019] Among them, the distribution valve 26 is connected with the manual oil source and the automatic oil source through the reflux port O, and has multiple outlets, which are respectively connected to the rod chambers of the lifting cylinder 31; when the lifting stage of the rodless chamber of the lifting cylinder 31 is inflowing oil, the oil from multiple outlets J is collected and enters the distribution valve 26 to discharge the oil back to the oil tank 01 through the reflux port O; when the rod chamber of the lifting cylinder 31 is inflowing oil, the oil enters the distribution valve 26 from the reflux port O and is discharged from multiple outlets J. When the pressure at the J port reaches the set value of the control port pressure of the pressure regulating valve 10, the two channels of the pressure regulating valve 10 are connected, and the oil in the rodless chamber of the lifting cylinder 31 is discharged back to the oil tank 01 through the driving valve, and the oil discharged from the outlet J of the distribution valve 26 enters the rod chamber of the lifting cylinder 31.

[0020] (III) Beneficial effects

[0021] The special vehicle chassis protection assembly disassembly and assembly tool provided by the above technical solution has the following beneficial effects:

[0022] (1) The disassembly and assembly tool consists of a hydraulic power system, a control panel and four lifting cylinders. The vehicle's DC power system is used to supply oil to the lifting cylinders to achieve the lifting function. At the same time, the manual hydraulic pump on the hydraulic power system can also be used to supply oil to the lifting cylinders to achieve manual control of the lifting function. The disassembly and installation of the chassis protection components of special vehicles (weight ≥ 1450 kg) can be completed within 120 minutes, and the lifting height (the height of the upper end surface of the chassis protection component from the ground) is ≥ 370 mm.

[0023] (2) The disassembly and assembly tools are domestically produced and resistant to high and low temperatures; the oil cylinder has a split structure and is widely used;

[0024] (3) The disassembly and assembly tool can realize two modes: manual mode and electric mode. The two modes are easy to switch and have no influence on each other. When using the manual mode, you only need to cut off the power of the system. When using the electric mode, you only need to put the three-position four-way manual valve in the "middle position";

[0025] (4) The special vehicle spare socket is used to supply power to realize automatic control of lifting and lowering of the chassis protection components of special vehicles, which is convenient for disassembly and assembly. In the case of no power supply, the lifting cylinder can be manually controlled to lift the chassis protection components of special vehicles to achieve lifting and lowering, which is convenient for disassembly and assembly. In the case of uneven road conditions, a single cylinder can be selected through the manual shut-off valve for height adjustment, which is convenient for the disassembly and installation of the chassis protection components of special vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a special vehicle chassis protection assembly disassembly and assembly tool according to an embodiment of the present invention.

[0027] Figure 2 The figure is a schematic diagram of the layout of the components of the special vehicle chassis protection component disassembly and assembly tool according to an embodiment of the present invention.

[0028] Figure 3 Schematic diagram of a hydraulic power system in an embodiment of the present invention.

[0029] Figure 4 It is a front view of the lifting cylinder in an embodiment of the present invention.

[0030] Figure 5 for Figure 4 Right view of . DETAILED DESCRIPTION

[0031] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0032] like Figure 1 to Figure 2As shown, the special vehicle chassis protection component disassembly and assembly tool of this embodiment includes a hydraulic power system, a control panel, a power supply cable, a high-pressure oil pipe assembly and four hydraulic cylinders; the four hydraulic cylinders are used as lifting cylinders and are respectively arranged at the bottom of the special vehicle as four fixed points around the center of mass of the protection component; the four hydraulic cylinders are respectively connected to the backup power socket of the special vehicle through power supply cables to realize 24V DC power supply; the four hydraulic cylinders are respectively connected to the hydraulic power system through the high-pressure oil pipe assembly, and the control panel is connected to the hydraulic power system, and the control panel is operated to control the synchronous lifting of the four hydraulic cylinders, or the independent lifting of a single cylinder, or the manual control of the lifting of a single cylinder, so as to realize the disassembly and assembly of the armored vehicle mine protection component.

[0033] like Figure 3 As shown, the hydraulic power system of this embodiment includes an oil tank 01, a filter 02, a gear pump 03, an electric motor 04, a relief valve 05, a first non-return valve 06, a three-position four-way solenoid valve 07, a synchronous valve group 08, a manual stop valve 09, a pressure regulating valve 10, a second non-return valve 21, a hand pump 22, a third non-return valve 23, a pressure gauge 24, a three-position four-way manual valve 25, a distribution valve 26 and pipelines.

[0034] The oil tank 01, the filter 02, the gear pump 03, the first one-way valve 06, the relief valve 05 and the three-position four-way solenoid valve 07 are connected through pipelines, the motor 04 and the gear pump 03 are connected through a mechanical structure, the first one-way valve 06 and the relief valve 05 are arranged in parallel, one end is connected to the gear pump 03, and the other end is connected to the three-position four-way solenoid valve 07, forming an automatic oil source for the hydraulic power system.

[0035] Among them, the filter 02 filters out impurities in the oil pumped by the gear pump 03 to the oil inlet P of the three-position four-way solenoid valve 07.

[0036] The gear pump 03 and the motor 04 are connected through a mechanical structure. When the motor 04 is powered, it rotates, driving the gear pump 03 to deliver oil from the oil tank 01 to the oil inlet P of the three-position four-way solenoid valve 07.

[0037] The opening pressure of the relief valve 05 can be set, the inlet of the relief valve 05 and the outlet of the gear pump 03 are connected by a pipeline, and the outlet of the relief valve 05 is connected to the oil tank 01; when the difference between the inlet pressure value and the outlet pressure value of the relief valve 05 is less than the set value, the inlet and outlet are not connected, and the oil sent by the gear pump 03 is sent to the oil inlet P of the three-position four-way solenoid valve 07 through the first one-way valve 06; when the difference between the inlet pressure value and the outlet pressure value of the relief valve 05 is greater than or equal to the set value, the inlet and outlet are connected, and the oil sent by the gear pump 03 is sent to the oil inlet P of the three-position four-way solenoid valve 07 through the first one-way valve 06, and at the same time, the excess oil flows back to the oil tank 01 through the relief valve 05, so that the pressure of the oil inlet P of the three-position four-way solenoid valve 07 remains stable.

[0038] The inlet of the first one-way valve 06 is connected to the outlet of the gear pump 03, and the outlet is connected to the oil inlet P of the three-position four-way solenoid valve 07, ensuring that the oil pumped out of the gear pump 03 can flow to the oil inlet P of the three-position four-way solenoid valve 07 through the first one-way valve 06, while the oil at the oil inlet P of the three-position four-way solenoid valve 07 will not flow back to the gear pump 03.

[0039] The three-position four-way solenoid valve 07 has four channel ports, which are marked as working port A, working port B, oil inlet P, and oil return port T; the oil inlet P is connected to the first one-way valve 06, the oil return port T is connected to the oil tank 01, the working port A is connected to the I port of the synchronous valve group 08, and the working port B is connected to the O port of the distribution valve 26; the three-position four-way solenoid valve 07 has three combination states, and the switching of the three combination states is achieved by energizing and de-energizing the electromagnet above it to push the valve core to move in the valve body. When the electromagnet on the left side of the three-position four-way solenoid valve 07 is energized, the oil inlet P and the working port A are connected, and the high-pressure oil at the oil inlet P passes through the three-position four-way solenoid valve 07 to the inlet I port of the synchronous valve group 08, and the oil return port T is connected to the working port B The reflux oil at the reflux port O of the distribution valve 26 flows back to the oil tank 01 through the three-position four-way solenoid valve 07; when the electromagnets on both sides of the three-position four-way solenoid valve 07 lose power, the oil inlet P and the working port A are disconnected, the oil return port T and the working port B are disconnected, the high-pressure oil at the oil inlet P and the reflux oil at the reflux port O of the distribution valve 26 are blocked, and the oil in the system cannot flow; when the electromagnet on the right side of the three-position four-way solenoid valve 07 is energized, the oil inlet P and the working port B are connected, the high-pressure oil at the oil inlet P passes through the three-position four-way solenoid valve 07 to the reflux port O of the distribution valve 26, the oil return port T and the working port A are connected, and the reflux oil at the inlet I of the synchronization valve group 08 can flow back to the oil tank 01 through the three-position four-way solenoid valve 07.

[0040] Figure 3 The oil tank 01, the second one-way valve 21, the hand pump 22, the third one-way valve 23 and the three-position four-way manual valve 25 shown in the figure are connected in sequence through pipelines, and the pressure gauge 24 is arranged on the connecting pipeline between the third one-way valve 23 and the three-position four-way manual valve 25, forming a manual oil source for the hydraulic power system.

[0041] Among them, the inlet of the second one-way valve 21 is connected to the oil tank 01, and the outlet is connected to the inlet of the hand pump 22, ensuring that the oil pumped out by the hand pump 22 will not flow back to the oil tank 01; the hand pump 22 sends the oil from the oil tank 01 to the oil inlet P' of the three-position four-way manual valve 25 through the third one-way valve 23 by manual loading; the inlet of the third one-way valve 23 is connected to the outlet of the hand pump 22, and the outlet is connected to the oil inlet P' of the three-position four-way manual valve 25, ensuring that the oil of the hand pump 22 can flow to the oil inlet P' of the three-position four-way manual valve 25 through the first one-way valve 06, and the oil at the oil inlet P' of the three-position four-way manual valve 25 will not flow back to the hand pump 22; the pressure gauge 24 is connected to the oil inlet P' of the three-position four-way manual valve 25 through the throttle port, and can display the pressure at the oil inlet P' of the three-position four-way manual valve 25 in real time.

[0042] The three-position four-way manual valve 25 has four channel ports, which are marked as working port A', working port B', oil inlet P', and oil return port T'; the oil inlet P' is connected to the third one-way valve 23, the oil return port T' is connected to the oil tank 01, the working port A' is connected to the I port of the synchronous valve group 08, and the working port B' is connected to the O port of the distribution valve 26; the three-position four-way manual valve 25 has three combination states, and the switching of the three combination states is achieved by the manual shift handle on it pushing the valve core to move in the valve body. When the handle of the three-position four-way manual valve 25 is pushed to the left, the oil inlet P' and the working port A' are connected, and the high-pressure oil at the oil inlet P' can pass through the three-position four-way manual valve 25 to the I port of the synchronous valve group 08, and the oil return port T' ' and working port B' are connected, and the return oil at port O of distribution valve 26 can be returned to oil tank 01 through the three-position four-way manual valve 25; when the handle of the three-position four-way manual valve 25 is pushed to the middle position, the oil inlet P' and working port A' are disconnected, the return oil port T' and working port B' are disconnected, the high-pressure oil at the oil inlet P' and the return oil at port O of distribution valve 26 are blocked, and the oil in the system cannot flow; when the handle of the three-position four-way manual valve 25 is pushed to the right, the oil inlet P' and working port B' are connected, the high-pressure oil at the oil inlet P' can pass through the three-position four-way manual valve 25 to the O port of distribution valve 26, the return oil port T' and working port A' are connected, and the return oil at port I of synchronization valve group 08 can be returned to oil tank 01 through the three-position four-way manual valve 25;

[0043] Figure 3 The synchronous valve group 08, manual stop valve 09, pressure regulating valve 10 and distribution valve 26 shown in the figure are connected through pipelines to form a driving valve of the hydraulic power system; the driving valve can process the oil entering from the inlet I port and output it from the outlet S port (which can be S1, S2, S3...) with equal flow rate; at the same time, it can also allow the oil entering from the outlet S port (which can be S1, S2, S3...) to enter with equal flow rate and then be discharged from the inlet I port.

[0044] Among them, the synchronous valve group 08 is connected with the manual oil source and the automatic oil source through the inlet I port, and there are 4 (or more) outlets, which are respectively connected to 4 (or more) manual stop valves 09; when the load of the 4 (or more) outlets of the synchronous valve 08 changes, the amount of oil discharged from the 4 (or more) outlets is the same; when the load of the 4 (or more) inlet of the synchronous valve 08 changes, the amount of oil entering the 4 (or more) inlet is the same; the manual stop valve 09 has two channels, one channel is connected with the synchronous valve 08, and the other channel is connected with the pressure regulating valve 10; the manual stop valve 09 is provided with a handle, and the provided handle can be rotated by hand to two positions, respectively marked as "open" and "closed"; when the handle of the manual stop valve 09 is rotated to the "open" position, the two channels of the manual stop valve 09 are connected, and when the handle is rotated to the "closed" position, the two channels of the manual stop valve 09 are disconnected.

[0045] Figure 3 The pressure regulating valve 10 shown in the figure has two channels and a control port; one channel is connected to the manual stop valve 09, and one channel is connected to the outlet S port (which can be S1, S2, S3...) of the lifting cylinder 31, and the control port is connected to the J port (which can be J1, J2, J3...) of the lifting cylinder 31 and the distribution valve 26; the pressure regulating valve 10 can be directly connected to the outlet S port (which can be S1, S2, S3...) when the oil entering from the direction of the manual stop valve 09 flows in; if the pressure of the control port J (which can be J1, J2, J3...) does not reach the set opening value, the oil flowing in from the outlet S port (which can be S1, S2, S3...) will not flow out from another channel of the pressure regulating valve 10; if the pressure of the control port J (which can be J1, J2, J3...) reaches the set opening value, the oil flowing in from the outlet S port (which can be S1, S2, S3...) will flow out from another channel of the pressure regulating valve 10;

[0046] Figure 3 The distribution valve 26 shown in the figure is connected with the manual oil source and the automatic oil source through the reflux port O port, and has 4 (or more) outlets, which are respectively connected to the rod chambers of the lifting cylinder 31; the distribution valve 26, in the lifting stage of the lifting cylinder 31 (oil entering the rodless chamber), the oil from the 4 (or more) outlets (J port) is collected and enters the distribution valve 26 to discharge the oil back to the oil tank 01 through the reflux port O port; the distribution valve 26, in the lifting cylinder 31 (oil entering the rod chamber) stage, the oil enters the distribution valve 26 from the reflux port O port, and is discharged from the 4 (or more) outlets (J port), when the pressure at the J port reaches the set value of the control port pressure of the pressure regulating valve 10, the two channels of the pressure regulating valve 10 are connected, the oil in the rodless chamber of the lifting cylinder 31 can be discharged back to the oil tank 01 through the driving valve, and the oil discharged from the outlet (J port) of the distribution valve 26 enters the rod chamber of the lifting cylinder 31.

[0047] like Figure 4 and Figure 5 As shown, the lifting cylinder of the patent of the present invention adopts a large-sized fixed base to ensure that the cylinder remains stable under various complex working conditions. The cylinder and the fixed base adopt a split design, and the base length of the cylinder can be appropriately adjusted.

[0048] The present invention belongs to the field of special vehicle maintenance and support systems, is fully domestically produced, and is resistant to high and low temperatures. It can realize two operating modes, automatic and manual, to disassemble and assemble special vehicle chassis protection components.

[0049] When the system is electrically controlled, after starting the special vehicle, use the spare socket on the vehicle to power the hydraulic power system. After power-on, the motor drives the gear pump to supply oil to the system. The control panel controls the three-position four-way solenoid valve to control the four lifting cylinders to make corresponding lifting / stopping movements. Considering that the mine protection components of armored vehicles need to adapt to various working conditions, a synchronous valve group and a distribution valve are used for pressure regulation to ensure the synchronous lifting of the four lifting cylinders. If you want to control the operation of a certain lifting cylinder, close the manual stop valves corresponding to other cylinders, so that the control of a single lifting cylinder can be achieved.

[0050] When the system is manually controlled, the system is powered off, and a hand pump is used to supply oil to the system. At the same time, the three-position four-way manual valve is operated to realize the reversing control of the four lifting cylinders to make corresponding lifting / stopping actions. Considering that the mine protection components of armored vehicles need to adapt to various working conditions, a synchronous valve group and a distribution valve are used for pressure regulation to ensure the synchronous lifting of the four lifting cylinders. If you want to control the operation of a certain lifting cylinder, close the manual stop valves corresponding to other cylinders, and then you can control a single lifting cylinder.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A special vehicle chassis protection assembly disassembly tool, characterized in that: include: Hydraulic power system, control panel, power supply cable, high-pressure oil pipe assembly and 4 hydraulic cylinders; the 4 hydraulic cylinders are used as lifting cylinders and are arranged at the bottom of the special vehicle as 4 fixed points around the center of mass of the protection component; the 4 hydraulic cylinders are connected to the backup power socket of the special vehicle through power supply cables to realize 24V DC power supply; the 4 hydraulic cylinders are connected to the hydraulic power system through high-pressure oil pipe assemblies, and the control panel is connected to the hydraulic power system. The control panel is operated to control the synchronous lifting of the 4 hydraulic cylinders, or the independent lifting of a single cylinder, or manual control of the lifting of a single cylinder, so as to realize the disassembly and assembly of the armored vehicle mine protection component.

2. The special vehicle chassis protection assembly disassembly and assembly tool according to claim 1, characterized in that: The hydraulic power system comprises an automatic oil source, a manual oil source and a driving valve; the automatic oil source and the manual oil source are connected in parallel to the driving valve, and the driving valves respectively drive corresponding lifting cylinders.

3. The special vehicle chassis protection assembly disassembly tool according to claim 2, characterized in that: The automatic oil source comprises: an oil tank (01), a filter (02), a gear pump (03), a first one-way valve (06), a relief valve (05) and a three-position four-way solenoid valve (07) connected by pipelines, an electric motor (04) and a gear pump (03) connected by a mechanical structure, the first one-way valve (06) and the relief valve (05) are arranged in parallel, one end of which is connected to the gear pump (03) and the other end of which is connected to the three-position four-way solenoid valve (07), thereby forming the automatic oil source.

4. The special vehicle chassis protection assembly disassembly tool as claimed in claim 3, characterized in that: The filter (02) filters out impurities in the oil pumped from the gear pump (03) to the oil inlet P of the three-position four-way solenoid valve (07); the gear pump (03) and the motor (04) are connected via a mechanical structure, and when the motor (04) is energized, it rotates, driving the gear pump (03) to deliver oil from the oil tank (01) to the oil inlet P of the three-position four-way solenoid valve (07); the inlet of the relief valve (05) and the outlet of the gear pump (03) are connected via a pipeline, and the outlet of the relief valve (05) is connected to the oil tank (01); when the inlet pressure value and the outlet pressure value of the relief valve (05) are equal, the pressure at the inlet of the relief valve (05) and the outlet of the relief valve (05) are equal. When the difference is less than the set value, the inlet and outlet are not connected, and the oil delivered by the gear pump (03) is sent to the oil inlet P of the three-position four-way solenoid valve (07) through the first one-way valve (06); when the difference between the inlet pressure value and the outlet pressure value of the relief valve (05) is greater than or equal to the set value, the inlet and outlet are connected, and the oil delivered by the gear pump (03) is sent to the oil inlet P of the three-position four-way solenoid valve (07) through the first one-way valve (06), and at the same time, the excess oil flows back to the oil tank (01) through the relief valve (05), so that the pressure of the oil inlet P of the three-position four-way solenoid valve (07) remains stable.

5. The special vehicle chassis protection assembly disassembly tool as claimed in claim 4, characterized in that: The inlet of the first one-way valve (06) is connected to the outlet of the gear pump (03), and the outlet is connected to the oil inlet P of the three-position four-way solenoid valve (07). The oil pumped out of the gear pump (03) flows to the oil inlet P of the three-position four-way solenoid valve (07) through the first one-way valve (06). The oil at the oil inlet P of the three-position four-way solenoid valve (07) will not flow back to the gear pump (03). The three-position four-way solenoid valve (07) has four channel ports, which are respectively marked as working port A, working port B, inlet The oil inlet P is connected to the first one-way valve (06), the oil return port T is connected to the oil tank (01), the working port A is connected to the inlet port I of the synchronous valve group (08) in the drive valve, and the working port B is connected to the return port O of the distribution valve (26); the three-position four-way solenoid valve (07) has three combination states, and the switching of the three combination states is realized by the power on and power off of the electromagnet on it to push the valve core to move in the valve body. When the three-position four-way solenoid valve (07) When the left electromagnet is energized, the oil inlet P and the working port A are connected, and the high-pressure oil at the oil inlet P flows through the three-position four-way solenoid valve (07) to the inlet I of the synchronous valve group (08), the oil return port T and the working port B are connected, and the return oil at the return port O of the distribution valve (26) flows back to the oil tank (01) through the three-position four-way solenoid valve (07); when the electromagnets on both sides of the three-position four-way solenoid valve (07) lose power, the oil inlet P and the working port A are disconnected, the oil return port T and the working port B are disconnected, and the oil inlet The high-pressure oil of P and the return oil of the return port O of the distribution valve (26) are blocked, and the oil cannot flow; when the right electromagnet of the three-position four-way solenoid valve (07) is energized, the oil inlet P and the working port B are connected, and the high-pressure oil of the oil inlet P passes through the three-position four-way solenoid valve (07) to the return port O of the distribution valve (26), the return oil port T and the working port A are connected, and the return oil of the inlet I of the synchronous valve group (08) flows back to the oil tank (01) through the three-position four-way solenoid valve (07).

6. The special vehicle chassis protection assembly disassembly and assembly tool according to claim 5, characterized in that: The manual oil source comprises: an oil tank (01), a second one-way valve (21), a hand pump (22), a third one-way valve (23) and a three-position four-way manual valve (25) which are connected in sequence through pipelines, and a pressure gauge (24) is arranged on the connecting pipeline between the third one-way valve (23) and the three-position four-way manual valve (25), thereby forming a manual oil source.

7. The special vehicle chassis protection assembly disassembly and assembly tool according to claim 6, characterized in that: The inlet of the second one-way valve (21) is connected to the oil tank (01), and the outlet is connected to the inlet of the hand pump (22). The oil pumped out by the hand pump (22) will not flow back into the oil tank (01). The hand pump (22) manually loads the oil from the oil tank (01) through the third one-way valve (23) and sends it to the oil inlet P' of the three-position four-way manual valve (25). The inlet of the third one-way valve (23) is connected to the outlet of the hand pump (22). The outlet is connected to the three-position four-way manual valve (25). The oil inlet P' of the manual valve (25) is connected to ensure that the oil of the hand pump (22) flows to the oil inlet P' of the three-position four-way manual valve (25) through the first non-return valve (06), while the oil at the oil inlet P' of the three-position four-way manual valve (25) will not flow back to the hand pump (22); the pressure gauge (24) is connected to the oil inlet P' of the three-position four-way manual valve (25) through the throttle port, and displays the pressure at the oil inlet P' of the three-position four-way manual valve (25) in real time.

8. The special vehicle chassis protection assembly disassembly tool according to claim 7, characterized in that: The three-position four-way manual valve (25) has four channel ports, which are marked as working port A', working port B', oil inlet port P', and oil return port T'; the oil inlet port P' is connected to the third one-way valve (23), the oil return port T' is connected to the oil tank (01), the working port A' is connected to the I port of the synchronous valve group (08), and the working port B' is connected to the O port of the distribution valve (26); the three-position four-way manual valve (25) has three combination states, and the switching of the three combination states is achieved by the manual shift handle on the three-position four-way manual valve (25) pushing the valve core to move in the valve body. When the handle of the three-position four-way manual valve (25) is pushed to the left, the oil inlet port P' and the working port A' are connected, and the high-pressure oil at the oil inlet port P' passes through the three-position four-way manual valve (25) to the I port of the synchronous valve group (08). , the oil return port T' and the working port B' are connected, and the return oil at the O port of the distribution valve (26) flows back to the oil tank (01) through the three-position four-way manual valve (25); when the handle of the three-position four-way manual valve (25) is pushed to the middle position, the oil inlet P' and the working port A' are disconnected, the oil return port T' and the working port B' are disconnected, the high-pressure oil at the oil inlet P' and the return oil at the O port of the distribution valve (26) are blocked, and the oil in the system does not flow; when the handle of the three-position four-way manual valve (25) is pushed to the right, the oil inlet P' and the working port B' are connected, the high-pressure oil at the oil inlet P' flows through the three-position four-way manual valve (25) to the O port of the distribution valve (26), the oil return port T' and the working port A' are connected, and the return oil at the I port of the synchronous valve group (08) flows back to the oil tank (01) through the three-position four-way manual valve (25).

9. The special vehicle chassis protection assembly disassembly and assembly tool according to claim 8, characterized in that: The driving valve comprises a synchronous valve group (08), a manual stop valve (09), a pressure regulating valve (10), and a distribution valve (26) which are connected by pipelines; the driving valve processes the oil entering the inlet I port and outputs the oil from the outlet S port in the form of equal flow rate; at the same time, the oil entering the outlet S port enters at an equal flow rate and is then discharged from the inlet I port; the synchronous valve group (08) is connected to the manual oil source and the automatic oil source through the inlet I port, and has multiple outlets, which are respectively connected to the manual stop valve (09); when the loads of multiple outlets of the synchronous valve (08) change, the amount of oil discharged from the multiple outlets is the same; when the loads of multiple inlets of the synchronous valve (08) change, the amount of oil entering the multiple inlets is the same; the manual stop valve (09) has two channels, one channel is connected to the synchronous valve (08), and the other channel is connected to the pressure regulating valve (10); a handle is arranged on the manual stop valve (09), and the handle is manually rotated to two positions to divide the The two channels are marked as "open" and "closed" respectively; when the handle of the manual stop valve (09) is rotated to the "open" position, the two channels of the manual stop valve (09) are connected, and when the handle is rotated to the "closed" position, the two channels of the manual stop valve (09) are disconnected; the pressure regulating valve (10) has two channels and a control port; one channel is connected to the manual stop valve (09), and the other channel is connected to the outlet S port of the lifting cylinder (31); the control port is connected to the lifting cylinder (31) and the J port of the distribution valve (26); when the oil entering from the direction of the manual stop valve (09) flows into the pressure regulating valve (10), it is directly connected to the outlet S port; if the pressure of the control port J does not reach the set opening value, the oil flowing in from the outlet S port does not flow out from the other channel of the pressure regulating valve (10); if the pressure of the control port J reaches the set opening value, the oil flowing in from the outlet S port flows out from the other channel of the pressure regulating valve (10).

10. The special vehicle chassis protection assembly disassembly tool according to claim 9, characterized in that: The distribution valve (26) is connected to the manual oil source and the automatic oil source through the return port O, and has multiple outlets, which are respectively connected to the rod chambers of the lifting cylinder (31); when the lifting cylinder (31) is in the lifting stage when the rodless chamber is filled with oil, the oil from the multiple outlets J is collected and enters the distribution valve (26) and the oil is discharged back to the oil tank (01) through the return port O; when the lifting cylinder (31) is in the stage when the rod chamber is filled with oil, the oil enters the distribution valve (26) from the return port O and is discharged from the multiple outlets J. When the pressure at the J port reaches the set value of the control port pressure of the pressure regulating valve (10), the two channels of the pressure regulating valve (10) are connected, the oil in the rodless chamber of the lifting cylinder (31) is discharged back to the oil tank (01) through the drive valve, and the oil discharged from the outlet J of the distribution valve (26) enters the rod chamber of the lifting cylinder (31).

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