DC system support anti-vibration system for AC / DC emergency power supply rescue vehicle

Abstract

The DC system support anti-vibration system for AC / DC emergency power repair truck comprises an anti-vibration device, the anti-vibration device comprises an anti-vibration support, the anti-vibration support is internally provided with an anti-vibration buffer area / slot, the center of the anti-vibration buffer area / slot is provided with a center guide block, the center guide block is internally provided with a buffer decomposition slot, the center of the buffer decomposition slot is provided with a support block in sliding / rolling contact with the bottom of the buffer decomposition slot, the support block is rectangular in cross section, the four sides of the support block are in sliding / rolling contact with four decomposition guide rods, the decomposition guide rods extend out of the side wall of the center guide block and are fixedly connected with one end of a damping air bag, the other end of the damping air bag is fixedly connected with the side wall of the anti-vibration support. By converting the vibration of the DC system on the repair truck into four-directional movement and acceleration, the four-directional damping air bags are used to provide buffering, and the pressure regulating system is used to cope with normal operation conditions and excessive acceleration conditions respectively, so that the corresponding damping air bags have corresponding buffer pressures.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of emergency power repair vehicles, in particular to a DC system support anti-vibration system for AC / DC emergency power repair vehicles. BACKGROUND

[0002] The AC / DC emergency power repair vehicle is equipped with an AC generator and a DC power system in the vehicle. The self-provided DC system can provide emergency DC repair power when the DC system of the substation collapses, and provide voltage for the DC load of the substation. Unlike ordinary emergency power repair vehicles that can only provide AC power using a diesel generator, the AC / DC emergency power repair vehicle is equipped with a complete DC system, including a charging screen, a battery screen, and a feeder screen.

[0003] The AC / DC emergency power repair vehicle has a DC system in the vehicle, which contains flammable and explosive materials such as batteries. During vehicle movement, the battery part needs to be treated for vibration to avoid problems such as poor cable contact caused by battery vibration, electrolyte deviation, and loose charging screen and feeder screen. However, ordinary anti-vibration pads can only provide a certain degree of cushioning, and cannot adjust the anti-vibration according to the vibration of the vehicle. As a result, the battery part cannot avoid its vibration frequency according to the vibration of the vehicle compartment, and cannot provide sufficient cushioning when encountering emergency situations with relatively large acceleration or deceleration. This causes the battery to have increased internal resistance or contact resistance due to long-term vibration or instantaneous resonance or high G value, which reduces the consistency of the battery pack, reduces the service life, and reduces the charging and discharging performance. In severe cases, it can even lead to uncontrolled charging and discharging of the battery. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a DC system support anti-vibration system for AC / DC emergency power repair vehicles, which can provide sufficient vibration reduction and emergency cushioning function for the DC system of the AC / DC emergency power repair vehicle, and provide a safe use environment for the DC system.

[0005] To solve the above technical problems, the technical solution adopted by the present application is:

[0006] The DC system support anti-vibration system for AC / DC emergency power repair vehicles comprises an anti-vibration device, the anti-vibration device comprises an anti-vibration support, the anti-vibration support is provided with an anti-vibration buffer area / groove, the center of the anti-vibration buffer area / groove is provided with a center guide block, the center guide block is provided with a buffer decomposition groove, the center of the buffer decomposition groove is provided with a support block in sliding / rolling contact with the bottom of the buffer decomposition groove, the support block is rectangular in cross section, the four faces of the support block are in sliding / rolling contact with four decomposition guide rods, the decomposition guide rods extend out of the side wall of the center guide block and are fixedly connected with one end of a shock absorbing air bag, the other end of the shock absorbing air bag is fixedly connected with the side wall of the anti-vibration support.

[0007] The four shock-absorbing airbags mentioned above are connected to the air pressure regulation system. The air pressure regulation system adjusts the air pressure of the four shock-absorbing airbags corresponding to the movement direction of the support block to form a buffer and shock absorption.

[0008] The aforementioned air pressure regulation system includes a booster air pump that compresses a reference pressure. The output end of the booster air pump is connected to a first pressure transmission pipe and a second pressure transmission pipe. The first pressure transmission pipe and the second pressure transmission pipe are respectively equipped with a first pipe proportional pressure reduction valve and a second pipe proportional pressure increase valve. The first pressure transmission pipe is connected to the shock-absorbing airbag through a one-way air inlet valve of the airbag. The second pipe proportional pressure increase valve is connected to the shock-absorbing airbag through a pressure holding and pressure regulating system and an accumulator one-way air outlet valve.

[0009] The aforementioned pressure holding and regulating system includes four accumulator one-way air inlet valves connected to the second pressure transmission pipeline. The accumulator one-way air inlet valves are connected to the input end of the accumulator, and the output end of the accumulator is equipped with an accumulator proportional pressure regulating valve. The output end of the accumulator proportional pressure regulating valve is connected to the accumulator one-way air outlet valve.

[0010] The aforementioned accumulator one-way outlet valve and airbag one-way inlet valve both inflate the vibration damping airbag in one direction.

[0011] The aforementioned shock-absorbing airbag is equipped with a controllable pressure relief valve.

[0012] The aforementioned support block is equipped with a right-angled limiting block, which is used to limit the four corners of the DC system and reduce vibration transmission.

[0013] The aforementioned vibration damping supports are installed on the brackets in the upper and lower directions and are located at the four corners to limit the DC system brackets. The upper and lower brackets are fixed to the upper and lower walls of the vehicle, respectively. Buffer pads are placed under the lower vibration damping support and on top of the upper vibration damping support.

[0014] The aforementioned upper and lower support bases are respectively equipped with a top acceleration sensor and a bottom acceleration sensor.

[0015] An airbag pressure sensor is installed on the connecting pipe between the aforementioned shock-absorbing airbag and the accumulator one-way air outlet valve or the airbag one-way air inlet valve.

[0016] The present invention provides a DC system support vibration damping system for an AC / DC emergency power supply repair vehicle. By converting the vibration of the DC system on the repair vehicle into motion and acceleration in four directions, the system uses four-directional damping airbags to provide buffering. The system also uses a pressure regulating system to deal with normal operating conditions and conditions with excessive acceleration, so that the corresponding damping airbags have corresponding buffering pressure. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of the vibration damping support of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the air pressure regulation system.

[0021] Figure 4 This is a layout diagram of the vibration damping system.

[0022] The components include: 1. Vibration damping support; 2. Vibration damping buffer / groove; 3. Center guide block; 31. Buffer decomposition groove; 4. Support block; 5. Decomposition guide rod; 51. T-shaped extension block; 52. Extrusion roller; 6. Vibration damping airbag; 7. Limiting right-angle block; 8. Booster pump; 9. First pressure transmission pipeline; 10. Second pressure transmission pipeline; 11. First pipeline proportional pressure reduction valve; 12. Second pipeline proportional pressure increase valve; 13. Accumulator one-way air inlet valve; 14. Accumulator proportional pressure regulating valve; 15. Accumulator one-way air outlet valve; 16. Airbag pressure sensor; 17. Airbag one-way air inlet valve; 18. Controllable pressure relief valve; 19. Support base; 20. Top acceleration sensor; 21. Bottom acceleration sensor; 22. DC system support; 23. Buffer pad; 24. Clamp; 25. Detailed Implementation

[0023] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1-4 As shown, the DC system support vibration damping system for the AC / DC emergency power supply repair vehicle includes a vibration damping device. The vibration damping device includes a vibration damping support 1, a vibration damping buffer / groove 2 inside the vibration damping support 1, a central guide block 3 at the center of the vibration damping buffer / groove 2, a buffer decomposition groove 31 inside the central guide block 3, and a support block 4 at the center of the buffer decomposition groove 31 that slides / rolls in contact with the bottom of the buffer decomposition groove 31. The support block 4 has a rectangular cross-section, and the four rectangular faces of the support block 4 slide / roll in contact with the ends of four decomposition guide rods 5. The decomposition guide rods 5 extend out of the side wall of the central guide block 3 and are fixedly connected to one end of the vibration damping airbag 6. The other end of the vibration damping airbag 6 is fixedly connected to the side wall of the vibration damping support 1.

[0025] like Figure 4As shown, on the AC / DC emergency power supply repair vehicle, the bottom and top corners of each cabinet, including the battery cabinet and the charging cabinet, are in contact with the right-angle limit block 7. The four rectangular faces of the support block 4 slide / roll in contact with the ends of the four decomposition guide rods 5, decomposing the movement direction of the four corners of the cabinet into the linear movement of the four decomposition guide rods 5 distributed at right angles. The four decomposition guide rods 5 move with the movement of the support block 4. The movement direction of the support block 4 is determined by the acceleration direction of the vehicle. The movement of the four decomposition guide rods 5 is buffered by the four shock-absorbing airbags 6 and finally transmitted to the support block 4 to form the vibration reduction of the cabinet.

[0026] The four shock-absorbing airbags 6 mentioned above are connected to the air pressure regulation system. The air pressure regulation system adjusts the air pressure of the four shock-absorbing airbags 6 corresponding to the movement direction of the support block 4, thereby forming a buffer and shock absorption.

[0027] The aforementioned air pressure regulation system includes a booster air pump 8 that compresses a reference pressure. The output end of the booster air pump 8 is connected to a first pressure transmission pipe 9 and a second pressure transmission pipe 10. The first pressure transmission pipe 9 and the second pressure transmission pipe 10 are respectively equipped with a first pipe proportional pressure reduction valve 11 and a second pipe proportional pressure increase valve 12. The first pressure transmission pipe 9 is connected to the shock-absorbing airbag 6 through an airbag one-way inlet valve 18. The second pipe proportional pressure increase valve 12 is connected to the shock-absorbing airbag 6 through a pressure holding and pressure regulating system and an accumulator one-way outlet valve 16.

[0028] like Figure 3 As shown, the first pipeline proportional pressure reduction valve 11 provides the four shock-absorbing airbags 6 with shock-absorbing air pressure in four directions to cope with the vehicle's start-stop and bumpy driving process. At this time, the pressure holding and pressure regulating system provides air pressure equal to the output of the first pipeline proportional pressure reduction valve 11. When the vehicle experiences abnormally increased acceleration, such as collision or loss of control, the system can provide the corresponding shock-absorbing airbag 6 with air pressure after passing through the second pipeline proportional pressure boosting valve 12 according to the direction of acceleration and adjust the air pressure to the appropriate corresponding air pressure to boost the pressure of the shock-absorbing airbag 6 in the corresponding direction.

[0029] In addition, thanks to the pressure holding and regulating system, the booster pump 8 does not need to work continuously. When the shock-absorbing airbag 6 reaches the set working air pressure, a one-way valve holds the pressure. When the air pressure drops, the pressure holding and regulating system outputs an appropriate amount of boost to restore the shock-absorbing airbag 6 to the working air pressure. When the pressure holding and regulating system cannot maintain the working air pressure, the booster pump 8 is briefly started to restore the working air pressure and then stops. This operation increases the service life of the booster pump 8.

[0030] The above-mentioned pressure maintaining and regulating system comprises four accumulator one-way air inlet valves 13 connected with the second pressure conveying pipeline 10, the accumulator one-way air inlet valves 13 are connected with the input end of the accumulator 14, the output end of the accumulator 14 is provided with an accumulator proportional pressure regulating valve 15, and the output end of the accumulator proportional pressure regulating valve 15 is connected with an accumulator one-way air outlet valve 16.

[0031] As shown in Figure 3 The air pressure of the air pressure pump 8 is formed into working air pressure after passing through the first pipeline proportional pressure reducing valve 11 and entering the four shock absorber air bags 6, at this time, the output air pressure of the accumulator proportional pressure regulating valve 15 is equal to the output air pressure of the first pipeline proportional pressure reducing valve 11, on the other hand, the second pipeline proportional pressure increasing valve 12 increases the air pressure and enters the accumulator 14, so that the accumulator has a long-time pressure maintaining output capacity for the shock absorber air bags 6, and the high pressure in the accumulator 14 can provide instantaneous buffer high pressure for the shock absorber air bags 6 in the corresponding direction when the vehicle loses control, collides or other losses.

[0032] The accumulator one-way air outlet valve 16 and the air bag one-way air inlet valve 18 both fill the shock absorber air bags 6 with air in one direction.

[0033] The shock absorber air bags 6 are provided with controllable pressure relief valves 19.

[0034] The support blocks 4 are provided with limiting right-angle blocks 7, which are used for limiting and shock absorbing transmission of the four corners of the direct current system.

[0035] The anti-vibration supports 1 are installed on the upper and lower support seats 20 and are arranged on the four corners to limit the direct current system support 23, the upper and lower support seats 20 are fixed to the upper and lower walls of the vehicle respectively, and the lower surface of the lower anti-vibration support 1 and the upper surface of the upper anti-vibration support 1 are provided with buffer pads 24.

[0036] As shown in Figure 4 The buffer pads 24 are used to provide shock absorption in the up-down direction, generally, the AC / DC emergency power supply rescue vehicle runs between the substations in the city and the high-speed substations, the road condition is good, and the up-down shock absorption through the buffer pads 24 is enough, while the frequent acceleration and deceleration and the collision loss are provided with shock absorption by the anti-vibration system.

[0037] The upper and lower support seats 20 are respectively provided with top acceleration sensors 21 and bottom acceleration sensors 22.

[0038] When the collision and loss of control events occur, the acceleration G values of the top and bottom of the direct current system cabinet body are different due to the different collision positions or loss of control postures, so different buffer shock absorptions are required to be provided respectively, and the acceleration detection is completed by the top acceleration sensor 21 and the bottom acceleration sensor 22.

[0039] The connection pipe of the above-mentioned shock absorber air bag 6 and the accumulator one-way air outlet valve 16 or the air bag one-way air inlet valve 18 is provided with an air bag pressure sensor 17.

Claims

1. A vibration damping system for the DC system bracket of an AC / DC emergency power supply repair vehicle, characterized in that, The device includes a vibration damping device, which includes a vibration damping support (1). The vibration damping support (1) is provided with a vibration damping buffer / groove (2). The vibration damping buffer / groove (2) is provided with a central guide block (3) at the center. The central guide block (3) is provided with a buffer decomposition groove (31). The center of the buffer decomposition groove (31) is provided with a support block (4) that slides / rolls in contact with the bottom of the buffer decomposition groove (31). The support block (4) has a rectangular cross section. The four rectangular sides of the support block (4) slide / roll in contact with the ends of four decomposition guide rods (5). The decomposition guide rods (5) extend out of the side wall of the central guide block (3) and are fixedly connected to one end of the shock-absorbing airbag (6). The other end of the shock-absorbing airbag (6) is fixedly connected to the side wall of the vibration damping support (1). The four shock-absorbing airbags (6) are connected to the air pressure regulation system. The air pressure of the four shock-absorbing airbags (6) corresponding to the movement direction of the support block (4) is adjusted by the air pressure regulation system to form a buffer and shock absorption. The pressure regulation system includes a booster pump (8) that compresses a reference pressure. The output end of the booster pump (8) is connected to a first pressure transmission pipe (9) and a second pressure transmission pipe (10). The first pressure transmission pipe (9) and the second pressure transmission pipe (10) are respectively equipped with a first pipe proportional pressure reduction valve (11) and a second pipe proportional pressure increase valve (12). The first pressure transmission pipe (9) is connected to the shock-absorbing airbag (6) through the airbag one-way air inlet valve (18). The second pipe proportional pressure increase valve (12) is connected to the shock-absorbing airbag (6) through the pressure holding and pressure regulating system and the accumulator one-way air outlet valve (16). The pressure holding and regulating system includes four accumulator one-way air inlet valves (13) connected to the second pressure transmission pipeline (10). The accumulator one-way air inlet valves (13) are connected to the input end of the accumulator (14). The output end of the accumulator (14) is provided with an accumulator proportional pressure regulating valve (15). The output end of the accumulator proportional pressure regulating valve (15) is connected to the accumulator one-way air outlet valve (16).

2. The vibration damping system for the DC system support of the AC / DC emergency power supply repair vehicle according to claim 1, characterized in that, The accumulator one-way air outlet valve (16) and the airbag one-way air inlet valve (18) are both inflated into the vibration damping airbag (6) in one direction.

3. The vibration damping system for the DC system support of the AC / DC emergency power supply repair vehicle according to claim 2, characterized in that, The shock-absorbing airbag (6) is equipped with a controllable pressure relief valve (19).

4. The vibration damping system for the DC system support of the AC / DC emergency power supply repair vehicle according to claim 3, characterized in that, The support block (4) is provided with a right-angled limiting block (7), which is used to limit the four corners of the DC system and reduce vibration transmission.

5. The vibration damping system for the DC system support of the AC / DC emergency power supply repair vehicle according to claim 4, characterized in that, The vibration damping support (1) is installed on the support seats (20) in the upper and lower directions and is set at the four corners to limit the DC system support (23). The upper and lower support seats (20) are fixed to the upper and lower walls of the vehicle respectively. The lower vibration damping support (1) is padded with a buffer pad (24) on the bottom and the upper vibration damping support (1).

6. The vibration damping system for the DC system support of an AC / DC emergency power supply repair vehicle according to claim 5, characterized in that, The upper and lower support bases (20) are respectively equipped with a top acceleration sensor (21) and a bottom acceleration sensor (22).

7. The vibration damping system for the DC system support of an AC / DC emergency power supply repair vehicle according to claim 6, characterized in that, An airbag pressure sensor (17) is provided on the connecting pipe between the shock-absorbing airbag (6) and the accumulator one-way air outlet valve (16) or the airbag one-way air inlet valve (18).

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