CN202764956U - Wheel type engineering machinery integrated control system - Google Patents
Wheel type engineering machinery integrated control system Download PDFInfo
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- CN202764956U CN202764956U CN 201220409433 CN201220409433U CN202764956U CN 202764956 U CN202764956 U CN 202764956U CN 201220409433 CN201220409433 CN 201220409433 CN 201220409433 U CN201220409433 U CN 201220409433U CN 202764956 U CN202764956 U CN 202764956U
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Abstract
The utility model discloses a wheel type engineering machinery integrated control system. A travel brake system and a parking brake system of the wheel type engineering machinery integrated control system are independent to each other without influencing each other. When a travel braking is needed, a series travel pedal valve is pushed by a foot, and a front and a rear wet disc brakes are under synchronous braking by the series travel pedal being controlled. When a parking or an emergent braking is needed, a parking and emergent braking valve block is controlled to open an actuator port by a parking and emergent braking valve being pressed and therefore the parking brake is achieved. The wheel type engineering machinery integrated control system has the advantages of increasing control ability, reliability, and stability of braking of a whole vehicle.
Description
Technical field
The utility model relates to a kind of control system, specifically a kind of industrial wheeled equipment complex control system.
Background technology
Industrial wheeled equipment generally has two kinds of brake system: air-operated hydraulic brake and Full-hydraulic braking apparatus.The air-operated hydraulic brake system uses more, does not go out booster pump, air pipe and oil pipe line etc. but this system need to configure Air compressor, oil water separator, storage tank, pressure controller, air brake valve, pneumatic jack; Structure is too complicated and be difficult for layout, and power consumption is large, noise is large, and at work, frequent braking can produce amount of heat makes the brake system seal failure, causes braking effect unreliable.
The Full-hydraulic braking apparatus form is compared with the air-operated hydraulic brake form and had the following advantages: hydraulic tubing is totally-enclosed loop, can avoid the dust pollution fluid in the atmosphere and reduce the reliability of brake system, drg is the fully enclosed, and friction lining is immersed in the gear oil, good heat dissipation effect; Front-rear axle divides the two-way braking, is independent of each other, and the reliability of brake system is high.Therefore, full power hydraulic brake system uses in construction machinery and equipment more and more.But its major defect of full power hydraulic brake system on the market is: the directional balance when 1, not considering the car load braking, and the maneuverability of vehicle is not high; 2, there is not the reasonable Arrangement scheme between steering swivel system, brake system and the actr three; 3, there is not complete full pipeline real-time monitoring system.
Summary of the invention
For the problem that above-mentioned prior art exists, the utility model provides the industrial wheeled equipment complex control system of a kind of energy Effective Raise car load brake operation, reliability and directional balance.
To achieve these goals, the technical solution adopted in the utility model is: a kind of industrial wheeled equipment complex control system comprises two-way prefill valve, the first energy storage, series connection treadle valve, braking taillight pressure switch, reducing valve, rear axle brake vi, parking brake, propons drg, Parking alarm switch, the second energy storage, emergency braking step switch, low pressure warning switch, parking and emergency brake valve piece, by pass valve, duplex gear pump, steering pump and steering cylinder; Described propons drg and rear axle brake vi adopt respectively two wet plate disc brakies; Described parking brake is the disc type parking brake that normally closed brake application by spring hydraulic pressure discharges; Duplex gear pump is connected respectively the two-way prefill valve with steering pump, the oil outlet of duplex gear pump links to each other with the P mouth of two-way prefill valve, the A1 mouth of two-way prefill valve and A2 mouth are connected in respectively P1 mouth and the P2 mouth of series connection treadle valve by pipeline, be connected with the first energy storage on two-way prefill valve and the pipeline of connecting between the treadle valve, braking taillight pressure switch is connected between the P mouth of the working hole A1 of series connection treadle valve and reducing valve, reducing valve is connected between the series connection A1 mouth of treadle valve and the rear axle brake vi and the P mouth of reducing valve is connected in rear axle brake vi, and the working hole A2 of series connection treadle valve is connected with the propons drg; Parking alarm switch, the second energy storage, emergency braking step switch and low pressure warning switch link to each other with SW3 mouth, A mouth, SW2 mouth and the SW1 mouth of parking emergency brake valve piece respectively, the pressure B mouth of emergency brake valve piece is connected in the disc type parking brake, by pass valve is connected in parallel between the oil outlet and system circuit of duplex gear pump, and steering cylinder links to each other with the working hole of steering pump.
Preferably, described the first energy storage parameter is 2.5L, 50Bar; Described the second energy storage parameter is 1.0L, 50Bar.
The beneficial effects of the utility model are: adopt hydraulic efficiency pressure system as propulsion source, system pressure is high, and the lock torque of generation is large, and the element requisite space is little, and response time is short, and is sluggish little; Adopt energy storage and double-circuit system, guaranteed the car brakeing safety and reliability.Adopt oil-immersed multi-disk brake and plate disc brake to combine, solved preferably and relied on fully that the HM Hydraulic Motor radiating effect that hydraulic braking causes is relatively poor, friction lining shorter problem in service life.Car load brake operation, reliability and directional balance have effectively been improved; Pedal force is directly proportional with brake-pressure, is swift in response, and pedal is experienced nature.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, two-way prefill valve, the 2, first energy storage, 3, the series connection treadle valve, 4, braking taillight pressure switch, 5, reducing valve, 6, rear axle brake vi, 7, parking brake, 8, the propons drg, 9, the Parking alarm switch, 10, the second energy storage, 11, the emergency braking step switch, 12, low pressure warning switch, 13, parking and emergency brake valve piece, 14, by pass valve, 15, duplex gear pump, 16, steering pump, 17, steering cylinder.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1: the utility model comprises two-way prefill valve 1, the first energy storage 2, series connection treadle valve 3, braking taillight pressure switch 4, reducing valve 5, rear axle brake vi 6, parking brake 7, propons drg 8, Parking alarm switch 9, the second energy storage 10, emergency braking step switch 11, low pressure warning switch 12, parking and emergency brake valve piece 13, by pass valve 14, duplex gear pump 15, steering pump 16 and steering cylinder 17; Duplex gear pump 15 is connected respectively two-way prefill valve 1 with steering pump 16, the oil outlet of duplex gear pump 15 links to each other with the P mouth of two-way prefill valve 1, the A1 mouth of two-way prefill valve 1 and A2 mouth are connected in respectively P1 mouth and the P2 mouth of series connection treadle valve 3 by pipeline, be connected with the first energy storage 2 on two-way prefill valve 1 and the pipeline of connecting between the treadle valve 3, braking taillight pressure switch 4 is connected between the P mouth of the working hole A1 of series connection treadle valve 3 and reducing valve 5, reducing valve 5 is connected between A1 mouth and the rear axle brake vi 6 of series connection treadle valve 3 and the P mouth of reducing valve 5 is connected in rear axle brake vi 6, and the working hole A2 of the treadle valve 3 of connecting is connected with propons drg 8; Parking alarm switch 9, the second energy storage 10, emergency braking step switch 11 and low pressure warning switch 12 link to each other with SW3 mouth, A mouth, SW2 mouth and the SW1 mouth of parking emergency brake valve piece 13 respectively, the pressure B mouth of emergency brake valve piece 13 is connected in disc type parking brake 7, by pass valve 14 is connected in parallel between the oil outlet and system circuit of duplex gear pump 15, and steering cylinder 17 links to each other with the working hole of steering pump 16.
Duplex gear pump 15 oil outlets link to each other with the P mouth of two-way prefill valve 1, flow to respectively P1 mouth and the P2 mouth of series connection treadle valve 3 from the A1 mouth of two-way prefill valve 1 and A2 mouth pressure oil out, when stepping on series connection treadle valve 3, the two-way braking liquid flows to respectively front-rear axle and makes the bridge braking, wherein flow to rear axle brake vi behind the P mouth of one tunnel working hole A1 through series connection treadle valve 3, reducing valve 5, another road directly flows to the propons drg from the working hole A2 of series connection treadle valve 3; In addition, through the pressure P mouth of SW mouth, parking and the emergency brake valve piece 13 of two-way prefill valve 1, flow to the emergency brake system that disc type parking brake 7 that the brake application by spring hydraulic pressure of back axle discharges forms from the pressure B mouth of emergency brake valve piece 13 again.
Native system is by duplex gear pump 15 independent fuel feeding, each alarm switch connects respectively warning indicator lamp, open the machine power switch, if brake-pressure is lower than 100bar, braking low pressure alarming lamp is bright, after the engine operation, duplex gear pump 15 is given the first energy storage 2 and the second energy storage 10 topping ups by two-way prefill valve 1, when energy storage pressure reaches 100bar when above, the braking low pressure alarming removes and indicator lamp goes out, and stops topping up when energy storage pressure reaches 120bar-165bar, should make the electromagnetic valve energising in parking and the emergency brake valve piece 13 before the machine walking, hydraulic oil enters the parking brake 7 of back axle by electromagnetic valve, braking during standstill is removed.When stepping on series connection treadle valve 3, the two-way braking liquid flows to respectively front-rear axle and makes the bridge braking; Energy storage continues topping up again when being lower than 120bar through energy storage pressure behind the brake action.If because system breaks down, energy storage pressure is lower than 100bar all the time, the parking checking fault, otherwise when pressure is lower than 85bar, emergency braking step switch 11 is opened automatically, machine is in the stopping brake state at once, pressing hand brake switch during parking makes the electromagnetic valve in parking and the emergency brake valve piece 13 be in off-position, the disc type parking brake spring reset that the interior hydraulic oil resilience spring brake fluid pressure of back axle this moment discharges holds out against, the back axle braking is to realize the mechanical locking to whole driving system.The utility model is realized the front-rear axle synchronous braking under the effect of series connection treadle valve 3; Stop and emergency brake valve piece 13 realization braking during standstills by controlling.
In the braking in a turn major loop, in the vehicle launch stage, two-way prefill valve 1 is to the first energy storage 2 and the second energy storage 10 feed flows.After the fluid of working in the accumulator reaches set pressure, two-way prefill valve 1 connection steering pump 16 is that the O mouth of two-way prefill valve 1 is communicated with steering pump P mouth, the fluid that this moment, duplex gear pump 15 provided can directly enter and turn to the loop, namely realizes the intensive fuel feeding of skid steer by the O mouth to steering pump 16 fuel feeding; Owing to equating from series connection treadle valve 3 working oil hydraulic coupling out, if two oil-immersed multi-disk brake maximum brake pressure of back axle and two oil-immersed multi-disk brake maximum brake pressure of propons are unequal, in order to satisfy the two-way difference of pressure, in the back axle pipeline, increase reducing valve 5, reached the reasonable distribution of front-rear axle lock torque.
Native system is opened 11 by braking taillight pressure switch 4 and emergency braking action and respectively Real Time Monitoring is carried out in industrial wheeled equipment service brake action and braking during standstill action, and the use of Parking alarm switch 9 and low pressure warning switch 12, can realize the Parking state is carried out all the period of time monitoring, guarantee vehicle Parking safety; Bear the parking brake 7 of braking during standstill in the native system for the disc type parking brake that normally closed brake application by spring hydraulic pressure discharges, be positioned at the back axle power intake; Its axially and radial dimension little, braking liquid is heated that the chance of vaporization is less, good, the braking effect of resistance to elevated temperatures is stablized during high load capacity.
Claims (2)
1. an industrial wheeled equipment complex control system is characterized in that comprising two-way prefill valve (1), the first energy storage (2), series connection treadle valve (3), braking taillight pressure switch (4), reducing valve (5), rear axle brake vi (6), parking brake (7), propons drg (8), Parking alarm switch (9), the second energy storage (10), emergency braking step switch (11), low pressure warning switch (12), stop and emergency brake valve piece (13), by pass valve (14), duplex gear pump (15), steering pump (16) and steering cylinder (17); Described propons drg (8) and rear axle brake vi (6) adopt respectively two wet plate disc brakies; Described parking brake (7) is the disc type parking brake that normally closed brake application by spring hydraulic pressure discharges; Duplex gear pump (15) is connected respectively two-way prefill valve (1) with steering pump (16), the oil outlet of duplex gear pump (15) links to each other with the P mouth of two-way prefill valve (1), the A1 mouth of two-way prefill valve (1) and A2 mouth are connected in respectively P1 mouth and the P2 mouth of series connection treadle valve (3) by pipeline, be connected with the first energy storage (2) on the pipeline between two-way prefill valve (1) and the treadle valve of connecting (3), braking taillight pressure switch (4) is connected between the working hole A1 and the P mouth of reducing valve (5) of series connection treadle valve (3), reducing valve (5) is connected between A1 mouth and the rear axle brake vi (6) of series connection treadle valve (3) and the P mouth of reducing valve (5) is connected in rear axle brake vi (6), and the working hole A2 of the treadle valve (3) of connecting is connected with propons drg (8); Parking alarm switch (9), the second energy storage (10), emergency braking step switch (11) and low pressure warning switch (12) link to each other with SW3 mouth, A mouth, SW2 mouth and the SW1 mouth of parking emergency brake valve piece (13) respectively, the pressure B mouth of emergency brake valve piece (13) is connected in disc type parking brake (7), by pass valve (14) is connected in parallel between the oil outlet and system circuit of duplex gear pump (15), and steering cylinder (17) links to each other with the working hole of steering pump (16).
2. a kind of industrial wheeled equipment complex control system according to claim 1 is characterized in that described the first energy storage (2) parameter is 2.5L, 50Bar; Described the second energy storage (10) parameter is 1.0L, 50Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409433 CN202764956U (en) | 2012-08-17 | 2012-08-17 | Wheel type engineering machinery integrated control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409433 CN202764956U (en) | 2012-08-17 | 2012-08-17 | Wheel type engineering machinery integrated control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202764956U true CN202764956U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220409433 Withdrawn - After Issue CN202764956U (en) | 2012-08-17 | 2012-08-17 | Wheel type engineering machinery integrated control system |
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| Country | Link |
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| CN (1) | CN202764956U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785652A (en) * | 2012-08-17 | 2012-11-21 | 徐州徐工铁路装备有限公司 | Integrated control system of wheel type engineering machine |
| CN104015718A (en) * | 2014-01-23 | 2014-09-03 | 广西柳工机械股份有限公司 | Displacement compensator |
| CN105774784A (en) * | 2014-12-22 | 2016-07-20 | 中冶宝钢技术服务有限公司 | Full-hydraulic braking system used for tank truck and tank truck |
| CN107285242A (en) * | 2016-03-31 | 2017-10-24 | 比亚迪股份有限公司 | Truck hydraulic integrated system and the fork truck with it |
| CN111469825A (en) * | 2020-04-07 | 2020-07-31 | 中国煤炭科工集团太原研究院有限公司 | Full-hydraulic braking efficiency sequential distribution system of mining rubber-tyred vehicle |
| WO2021244375A1 (en) * | 2020-06-04 | 2021-12-09 | 安徽合力股份有限公司 | Brake integrated valve block and double-circuit wet braking system applying same |
-
2012
- 2012-08-17 CN CN 201220409433 patent/CN202764956U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785652A (en) * | 2012-08-17 | 2012-11-21 | 徐州徐工铁路装备有限公司 | Integrated control system of wheel type engineering machine |
| CN102785652B (en) * | 2012-08-17 | 2014-07-16 | 徐州徐工铁路装备有限公司 | Integrated control system of wheel type engineering machine |
| CN104015718A (en) * | 2014-01-23 | 2014-09-03 | 广西柳工机械股份有限公司 | Displacement compensator |
| CN104015718B (en) * | 2014-01-23 | 2016-04-20 | 广西柳工机械股份有限公司 | Discharge capacity compensator |
| CN105774784A (en) * | 2014-12-22 | 2016-07-20 | 中冶宝钢技术服务有限公司 | Full-hydraulic braking system used for tank truck and tank truck |
| CN107285242A (en) * | 2016-03-31 | 2017-10-24 | 比亚迪股份有限公司 | Truck hydraulic integrated system and the fork truck with it |
| CN107285242B (en) * | 2016-03-31 | 2019-06-25 | 比亚迪股份有限公司 | Truck hydraulic integrated system and fork truck with it |
| CN111469825A (en) * | 2020-04-07 | 2020-07-31 | 中国煤炭科工集团太原研究院有限公司 | Full-hydraulic braking efficiency sequential distribution system of mining rubber-tyred vehicle |
| WO2021244375A1 (en) * | 2020-06-04 | 2021-12-09 | 安徽合力股份有限公司 | Brake integrated valve block and double-circuit wet braking system applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20140716 |
|
| RGAV | Abandon patent right to avoid regrant |