CN115891814A - Anti-vibration system of DC system support for AC and DC emergency power supply repair vehicle - Google Patents

Abstract

The anti-vibration system of the DC system bracket used for the AC/DC emergency power supply repair vehicle includes an anti-vibration device, the anti-vibration device includes an anti-vibration support, and the anti-vibration support is equipped with an anti-vibration buffer/groove, and an anti-vibration buffer/groove There is a center guide block in the center of the center guide block, and a buffer decomposition groove is arranged in the center guide block. The center of the buffer decomposition groove is provided with a support block that slides/rolls in contact with the bottom of the buffer decomposition groove. The cross section of the support block is rectangular, and the four sides of the support block are rectangular. Sliding/rolling contact with the ends of the four decomposed guide rods, the decomposed guide rod protrudes from the side wall of the central guide block and is fixedly connected with one end of the damping air bag, and the other end of the damping air bag is fixedly connected with the side wall of the anti-vibration support. By transforming the vibration of the DC system on the emergency repair vehicle into motion and acceleration in four directions, using shock-absorbing airbags in four directions to provide cushioning, and using the pressure regulating system to deal with normal operating conditions and excessive acceleration conditions respectively, so that The corresponding damping airbag has a corresponding buffer pressure.

Description

Anti-vibration system of DC system support for AC and DC emergency power supply repair vehicle

technical field

The invention relates to the technical field of emergency power supply repair vehicles, in particular to an anti-vibration system for a DC system bracket used in an AC/DC emergency power supply repair vehicle.

Background technique

The AC/DC emergency power supply repair vehicle is equipped with an alternator and a DC power supply system in the vehicle. Its built-in DC system can provide emergency DC repair power when the DC system of the substation breaks down, and provide voltage for the DC load of the substation. Unlike ordinary emergency power repair vehicles that can only use diesel generators to provide AC power, the vehicle is equipped with a full set of DC systems, including charging screens, battery screens, and feeder screens.

The AC/DC emergency power supply repair vehicle has a DC system inside the vehicle, which contains flammable and explosive items such as batteries. During the movement of the vehicle, it is necessary to carry out anti-vibration treatment on the battery part to avoid cable contact caused by vibration caused by the battery. Poor contact, electrolyte offset, avoiding problems such as loosening of the charging screen and feeding screen, while ordinary anti-vibration pads can only cushion to a certain extent, and cannot adjust the anti-vibration according to the vibration of the vehicle, resulting in battery parts The vibration frequency cannot be avoided according to the vibration of the carriage, and it cannot be fully buffered when there is a relatively large acceleration or deceleration in an emergency situation, causing the battery to cause internal damage due to long-term vibration or instantaneous resonance or instantaneous high G value. Increased internal resistance or increased contact resistance will reduce the consistency of the battery pack. Long-term use will lead to reduced service life and reduced charge and discharge performance.

Contents of the invention

The technical problem to be solved by the present invention is to provide a DC system bracket anti-vibration system for the AC-DC emergency power supply repair vehicle, which can provide sufficient vibration reduction and emergency buffer functions for the DC system on the AC-DC emergency power supply repair vehicle. The DC system provides a safe environment for use.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

The anti-vibration system of the DC system support for the AC/DC emergency power supply repair vehicle includes an anti-vibration device. The anti-vibration device includes an anti-vibration support. There is a central guide block in the center of the center guide block, and a buffer decomposition groove is provided in the center guide block. The center of the buffer decomposition groove is provided with a support block that slides/rolls in contact with the bottom of the buffer decomposition groove. The cross section of the support block is rectangular, and the four sides of the support block are rectangular. Sliding/rolling contact with the ends of the four decomposed guide rods, the decomposed guide rod protrudes from the side wall of the central guide block and is fixedly connected with one end of the damping air bag, and the other end of the damping air bag is fixedly connected with the side wall of the anti-vibration support.

The above-mentioned four damping airbags are connected with the air pressure adjustment system, and the air pressure of the four damping airbags corresponding to the movement direction of the support block is adjusted through the air pressure adjustment system to form a buffer and vibration reduction.

The above-mentioned air pressure regulating system includes a booster air pump that has been extruded by reference, the output end of the booster air pump is connected with a first pressure delivery pipeline and a second pressure delivery pipeline, and the first pressure delivery pipeline and the second pressure delivery pipeline are respectively provided with There are a first pipeline proportional pressure-reducing valve and a second pipeline proportional pressure-boosting valve. The first pressure-delivery pipeline is connected to the shock-absorbing airbag through the air bag one-way intake valve, and the second pipeline proportional pressure-boosting valve is connected to the The one-way air outlet valve of the accumulator is connected with the damping air bag.

The above-mentioned pressure maintaining and pressure regulating system includes four accumulator one-way intake valves connected with the second pressure pipeline, the accumulator one-way intake valve is connected with the input end of the accumulator, and the output end of the accumulator A proportional pressure regulating valve of the accumulator is provided, and the output end of the proportional pressure regulating valve of the accumulator is connected with the one-way air outlet valve of the accumulator.

The above-mentioned one-way air outlet valve of the accumulator and the one-way air intake valve of the air bag are all unidirectionally inflated into the shock-absorbing air bag.

The above-mentioned damping airbag is provided with a controllable pressure relief valve.

The above-mentioned support block is provided with limit right-angle blocks, and the limit right-angle blocks are used to limit the four corners of the DC system and conduct vibration reduction.

The above-mentioned anti-vibration support is installed on the support seat in the upper and lower directions and is divided into four corners to limit the position of the DC system support. The upper and lower support seats are respectively fixed with the upper and lower walls of the vehicle. The lower anti-vibration support And the upper anti-vibration bearing is cushioned with a buffer pad.

The top and bottom acceleration sensors are respectively provided on the upper and lower support seats.

An airbag pressure sensor is provided on the connecting pipe between the above-mentioned damping airbag and the one-way air outlet valve of the accumulator or the one-way air intake valve of the airbag.

The anti-vibration system of the DC system bracket used in the AC/DC emergency power supply emergency repair vehicle provided by the present invention converts the vibration of the DC system on the emergency repair vehicle into motion and acceleration in four directions, and uses vibration-damping airbags in four directions to provide Buffering, and through the pressure regulating system to deal with normal operating conditions and excessive acceleration conditions, so that the corresponding shock absorbing airbags have corresponding buffer pressure.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

Fig. 1 is the structural representation of anti-vibration bearing of the present invention;

Fig. 2 is the partially enlarged schematic diagram of place A in Fig. 1;

Fig. 3 is a schematic diagram of the principle of the air pressure regulating system;

Figure 4 is a layout diagram of the anti-vibration system.

Among them: anti-vibration support 1, anti-vibration buffer zone/groove 2, center guide block 3, buffer decomposition groove 31, support block 4, decomposition guide rod 5, T-shaped extension block 51, extrusion roller 52, vibration-damping airbag 6 , limit right angle block 7, booster air pump 8, first pressure delivery pipeline 9, second pressure delivery pipeline 10, first pipeline proportional pressure reducing valve 11, second pipeline proportional pressure boost valve 12, accumulator one-way inlet Air valve 13, accumulator 14, accumulator proportional pressure regulating valve 15, accumulator one-way outlet valve 16, airbag pressure sensor 17, airbag one-way inlet valve 18, controllable pressure relief valve 19, bracket seat 20 , top acceleration sensor 21, bottom acceleration sensor 22, DC system support 23, buffer pad 24, hoop 25.

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

As shown in Figure 1-4, the DC system bracket anti-vibration system used for the AC/DC emergency power supply repair vehicle includes an anti-vibration device. The anti-vibration device includes an anti-vibration support 1, and an anti-vibration Buffer zone/groove 2, the center of anti-vibration buffer zone/groove 2 is provided with a central guide block 3, and the center guide block 3 is provided with a buffer decomposition groove 31, and the center of the buffer decomposition groove 31 is provided with a sliding/ The support block 4 in rolling contact, the cross section of the support block 4 is rectangular, the four sides of the support block 4 are in sliding/rolling contact with the ends of the four decomposed guide rods 5, the decomposed guide rods 5 protrude from the side wall of the central guide block 3 and are connected to the vibration damping One end of the airbag 6 is fixedly connected, and the other end of the damping airbag 6 is fixedly connected to the side wall of the anti-vibration support 1 .

As shown in Figure 4, on the AC/DC emergency power supply repair vehicle, the bottom corners and top corners of each screen cabinet including the battery screen, charging screen, etc. are in contact with the limit right-angle block 7, and the four rectangular sides of the support block 4 are connected to the four corners. The sliding/rolling contact at the ends of the decomposed guide rods 5 decomposes the movement direction of the four corners of the cabinet into the linear motion of the four decomposed guide rods 5 distributed at right angles, and the four decomposed guide rods 5 follow the movement of the support block 4 to move, supporting The movement direction of the block 4 is determined by the acceleration direction of the vehicle, and the movement of the four decomposed guide rods 5 is buffered by the four damping airbags 6, and finally transmitted to the support block 4 to form the vibration reduction of the cabinet.

The above-mentioned four damping airbags 6 are connected with the air pressure adjustment system, and the air pressure of the four damping airbags 6 corresponding to the movement direction of the support block 4 is adjusted by the air pressure adjustment system to form cushioning and vibration reduction.

The above-mentioned air pressure regulating system includes a booster air pump 8 that has been squeezed through the reference, the output end of the booster air pump 8 is connected with a first pressure delivery pipeline 9 and a second pressure delivery pipeline 10, and the first pressure delivery pipeline 9 and the second delivery pressure pipeline The pressure pipeline 10 is provided with a first pipeline proportional decompression valve 11 and a second pipeline proportional pressure boost valve 12 respectively, the first pressure transmission pipeline 9 is connected with the damping airbag 6 through the airbag one-way intake valve 18, and the second pipeline proportional The boost valve 12 is connected with the damping airbag 6 through the pressure maintaining and regulating system and the one-way air outlet valve 16 of the accumulator.

As shown in FIG. 3 , through the first pipeline proportional pressure-reducing valve 11, the four shock-absorbing airbags 6 are provided with shock-absorbing air pressures that can cope with the four directions of the vehicle during normal driving, start-stop and bumping. The pressure regulating system provides the air pressure equal to the output end of the first pipeline proportional pressure-reducing valve 11, and when the vehicle experiences an abnormally increased acceleration such as a collision, loss of control, etc., it can provide the corresponding shock-absorbing airbag 6 according to the direction of the acceleration. The air pressure behind the two-pipeline proportional booster valve 12 is adjusted to a suitable corresponding air pressure, and the shock-absorbing airbag 6 in the corresponding direction is pressurized.

In addition, through the pressure maintaining function of the pressure maintaining and pressure regulating system, the booster air pump 8 does not need to work all the time. When the shock absorbing airbag 6 reaches the set working pressure, there is a one-way valve to maintain the pressure. When the air pressure drops, the pressure maintaining And the pressure regulating system outputs an appropriate amount of pressurization to make the shock absorbing airbag 6 return to the working air pressure. When the pressure maintaining and pressure regulating system cannot maintain the working air pressure, the booster air pump 8 is started for a short time and then stops after returning to the working air pressure. Increased the service life of booster air pump 8.

The above-mentioned pressure maintaining and pressure regulating system includes four accumulator one-way intake valves 13 connected with the second pressure delivery pipeline 10, the accumulator one-way intake valve 13 is connected with the input end of the accumulator 14, and the energy storage The output end of the device 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 outlet valve 16.

As shown in Figure 3, on the one hand, the air pressure of the booster air pump 8 forms the working air pressure after passing through the first pipeline proportional pressure-reducing valve 11, and then enters the four damping airbags 6. At this time, the output air pressure of the accumulator proportional pressure-regulating valve 15 It is equal to the output air pressure of the first pipe proportional pressure-reducing valve 11. On the other hand, the second pipe proportional pressure-boosting valve 12 boosts the air pressure and then enters the accumulator 14, so that the accumulator has a long-term effect on the shock-absorbing airbag 6. The pressure-holding output capability, and the high pressure in the accumulator 14 can be used as a strong G value for the shock-absorbing airbag 6 in the corresponding direction to provide the ability to instantaneously buffer the high pressure when the vehicle loses control, collision and other losses.

The above-mentioned one-way air outlet valve 16 of the accumulator and the one-way air intake valve 18 of the air bag are all unidirectionally inflated into the shock-absorbing air bag 6 .

The above-mentioned damping airbag 6 is provided with a controllable pressure relief valve 19 .

The above-mentioned support block 4 is provided with a limit right-angle block 7, and the limit right-angle block 7 is used to limit the four corners of the DC system and conduct vibration reduction.

The above-mentioned anti-vibration support 1 is installed on the support seat 20 in the up and down directions and is separately arranged on the four corners for limiting the DC system support 23. The upper and lower support seats 20 are respectively fixed with the upper and lower walls of the vehicle, and the lower anti-vibration Cushion pads 24 are padded above the anti-vibration bearing 1 below the vibration bearing 1 and on the top.

As shown in Figure 4, the buffer pad 24 is used to provide the vibration damping effect in the up and down direction. Generally speaking, the AC/DC emergency power supply repair vehicle runs between the substation and the high-speed substation in the urban area. Vibration reduction is enough, and frequent acceleration and deceleration and collision out of control are provided by the anti-vibration system.

The top acceleration sensor 21 and the bottom acceleration sensor 22 are respectively provided on the upper and lower support bases 20 .

When a collision or out-of-control event occurs, the acceleration G values at the top and bottom of the DC system cabinet are different due to the difference in the collision position or the out-of-control attitude, so it is necessary to provide different buffering and damping pressures, and the acceleration is detected by the top acceleration sensor 21 And the bottom acceleration sensor 22 is completed.

An airbag pressure sensor 17 is provided on the connecting pipe between the above-mentioned damping airbag 6 and the accumulator one-way outlet valve 16 or the airbag one-way inlet valve 18 .

Claims (10)

1. The anti-vibration system of the DC system bracket used for the AC/DC emergency power supply repair vehicle is characterized in that it includes an anti-vibration device, the anti-vibration device includes an anti-vibration support (1), and the anti-vibration support (1) is equipped with an The vibration buffer zone/groove (2), the center of the anti-vibration buffer zone/groove (2) is provided with a center guide block (3), and the center guide block (3) is provided with a buffer decomposition groove (31), and the buffer decomposition groove (31 ) is provided with a support block (4) in sliding/rolling contact with the bottom of the buffer decomposition groove (31). The cross section of the support block (4) is rectangular. ) ends in sliding/rolling contact, and the decomposed guide rod (5) protrudes from the side wall of the central guide block (3) and is fixedly connected to one end of the damping airbag (6), and the other end of the damping airbag (6) is connected to the anti-vibration support (1 ) side wall fixed connection. 2. The DC system bracket anti-vibration system for the AC-DC emergency power supply repair vehicle according to claim 1, characterized in that, the four vibration-damping airbags (6) are connected to the air pressure adjustment system, and through the air pressure adjustment system Air pressure adjustment is performed on the four damping airbags (6) corresponding to the movement direction of the support block (4) so as to form cushioning and damping. 3. The DC system bracket anti-vibration system for the AC-DC emergency power supply repair vehicle according to claim 2, characterized in that, the air pressure adjustment system includes a booster air pump (8) that is squeezed over the reference, increasing The output end of the air compressor (8) is connected with a first pressure delivery pipeline (9) and a second pressure delivery pipeline (10), and the first pressure delivery pipeline (9) and the second pressure delivery pipeline (10) are respectively provided with a second A pipe proportional pressure-reducing valve (11) and a second pipe proportional pressure-boosting valve (12), the first pressure pipeline (9) is connected to the damping air bag (6) through the air bag one-way inlet valve (18), the second pipe The pipeline proportional boost valve (12) is connected with the damping air bag (6) through the pressure maintaining and regulating system and the one-way outlet valve (16) of the accumulator. 4. The DC system bracket anti-vibration system for the AC-DC emergency power supply repair vehicle according to claim 3, characterized in that, the pressure maintaining and regulating system includes a second pressure transmission pipeline (10) connected Four accumulator one-way intake valves (13), the accumulator one-way intake valve (13) is connected to the input end of the accumulator (14), and the output end of the accumulator (14) is provided with an accumulator The proportional pressure regulating valve (15), the output end of the accumulator proportional pressure regulating valve (15) is connected with the accumulator one-way air outlet valve (16). 5. The DC system bracket anti-vibration system for AC/DC emergency power supply repair vehicle according to claim 4, characterized in that, the one-way air outlet valve (16) of the accumulator and the one-way air intake valve ( 18) all inflate in the one-way damping airbag (6). 6. The anti-vibration system for the DC system support of the AC-DC emergency power supply repair vehicle according to claim 5, characterized in that, the vibration-damping airbag (6) is provided with a controllable pressure relief valve (19). 7. The DC system bracket anti-vibration system for AC and DC emergency power supply repair vehicles according to claim 6, characterized in that, the support block (4) is provided with a limit right-angle block (7), and the limit right-angle The block (7) is used to limit the four corners of the DC system and conduct vibration reduction. 8. The DC system bracket anti-vibration system for the AC-DC emergency power supply repair vehicle according to claim 7, characterized in that, the anti-vibration support (1) is installed on the support seat ( 20) and set on the four corners to limit the position of the DC system support (23). The upper and lower support seats (20) are respectively fixed to the upper and lower walls of the vehicle. The lower anti-vibration support (1) and the upper anti-vibration A buffer pad (24) is padded above the bearing (1). 9. The DC system bracket anti-vibration system for the AC-DC emergency power supply repair vehicle according to claim 8, characterized in that, the upper and lower bracket seats (20) are respectively provided with top acceleration sensors (21 ) and the bottom acceleration sensor (22). 10. The DC system bracket anti-vibration system for the AC-DC emergency power supply repair vehicle according to claim 9, characterized in that, the vibration-damping airbag (6) and the one-way outlet valve (16) of the accumulator or An airbag pressure sensor (17) is provided on the connecting pipe of the airbag one-way intake valve (18).

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