CN204387167U - The hydraulic braking sytem that a kind of moment is controlled - Google Patents
The hydraulic braking sytem that a kind of moment is controlled Download PDFInfo
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- CN204387167U CN204387167U CN201420788511.XU CN201420788511U CN204387167U CN 204387167 U CN204387167 U CN 204387167U CN 201420788511 U CN201420788511 U CN 201420788511U CN 204387167 U CN204387167 U CN 204387167U
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Abstract
The utility model discloses the hydraulic braking sytem that a kind of moment is controlled, comprise motor, oil pump and fuel tank, motor is connected with oil pump, oil pump input end accesses fuel tank by pipeline, oil pump output terminal is divided into two-way, one tunnel is connected with the first relief valve pressure port, another road is connected with one-way valve inlet, one-way valved outlet is divided into four tunnels, the first via is connected with pressure relay by pipeline, second tunnel is connected with accumulator by pipeline, 3rd road and the 4th tunnel are in parallel, 3rd road and the 4th tunnel are distributed with for the controlled multistage solenoid directional control valve of attainment brake hydraulic pressure device braking force, first relief valve unloading port is connected with the second relief valve unloading port and proportional pressure control valve unloading port respectively.It is the most obvious that the utility model is especially used in effect in the hoist main electromotor structures such as ship lift, can replace braking by grades mode conventional at present, elimination braking by grades mode braking force distribution is unbalanced, control accuracy is low, the undesirable potential safety hazard caused of braking effect.
Description
Technical field
The utility model relates to a kind of hydraulic braking sytem, particularly relates to the hydraulic braking sytem that a kind of moment is controlled.
Background technique
During traditional hydraulic brake work, mainly providing enough hydraulic couplings by oil pump, obtaining dead electricity by controlling solenoid directional control valve, thus the opening and braking of control brake.This kind of control mode, when mechanism's emergency braking, the hydraulic coupling of break cannot reed time controll, braking force is disposablely applied on brake disc (or Brake drum), usually because braking force is excessive, huge impact produced to mechanism and rocks, damaging each component on Transmitted chains.
At present in the hoist main electromotor structures such as ship lift; the most frequently used method adopts hydraulic brake braking by grades mode; under emergency shutdown operating mode; by controlling electromagnetic switch Vavle switching two-stage or multistage overflow valve; thus the hydraulic coupling of substep control brake; realize two-stage or the multistage brake of break, alleviate and impact.But since actual use, effect is unsatisfactory, because load when lifting gear is braked and speed are all different at every turn, required braking force is also different, and the pressure of Grading Overflow valve braking pilot process in cannot be in good time adjustment, thus cause the defect that braking force distribution is unbalanced, control accuracy is low, braking effect is undesirable, bring larger potential safety hazard to the safe and reliable operation of the hoists such as ship lift.
Therefore, need to provide a kind of new technological scheme to solve the problems referred to above.
Model utility content
The utility model technical issues that need to address are to provide the controlled hydraulic braking sytem of a kind of moment, and under mechanism's emergency shutdown operating mode, braking force can reed time controll, control accuracy high, fast response time, good braking effect.
For solving technical problem of the present utility model, the hydraulic braking sytem that a kind of moment of the present utility model is controlled, comprise motor, oil pump and fuel tank, described motor is connected with oil pump, described oil pump input end accesses fuel tank by pipeline, described oil pump output terminal is divided into two-way, one tunnel is connected with the first relief valve pressure port, another road is connected with one-way valve inlet, described one-way valved outlet is divided into four tunnels, the first via is connected with pressure relay by pipeline, second tunnel is connected with accumulator by pipeline, 3rd road and the 4th tunnel are in parallel, 3rd road and the 4th tunnel are distributed with for the controlled multistage solenoid directional control valve of attainment brake hydraulic pressure device braking force, described first relief valve unloading port is connected with the second relief valve unloading port and proportional pressure control valve unloading port respectively.
The above-mentioned multistage solenoid directional control valve controlled for attainment brake hydraulic pressure device braking force comprises the first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve and the 5th solenoid directional control valve, 3rd tunnel of described one-way valve is connected with the P2 mouth of the second solenoid directional control valve with the P1 mouth of the first solenoid directional control valve respectively with the 4th tunnel, and the B1 mouth of the first solenoid directional control valve is connected with pressure transducer, pressure gauge, hydraulic brake respectively with after the B2 mouth Parallel opertation of the second solenoid directional control valve, the T1 mouth of described first solenoid directional control valve and the T2 mouth of the second solenoid directional control valve are connected with the B4 mouth of the 4th solenoid directional control valve with the B3 mouth of the 3rd solenoid directional control valve respectively, the T3 mouth of the 3rd solenoid directional control valve is connected with the B5 mouth of the 5th solenoid directional control valve with after the T4 mouth Parallel opertation of the 4th solenoid directional control valve, the P5 mouth of the 5th solenoid directional control valve is divided into two-way, one tunnel is connected with the second relief valve pressure port, another road is connected with proportional pressure control valve pressure port, the T5 mouth of the 5th solenoid directional control valve and the first relief valve unloading port, second relief valve unloading port, proportional pressure control valve unloading port communicates, fuel tank is taken back again by pipeline.
Further, described first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve and the 5th solenoid directional control valve are two four-way electromagnetic reversing valves, and Connecting format is redundant configuration.
Further, described first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve and the 5th solenoid directional control valve are also provided with valve element position feedback limit switch.
Further, described second relief valve is quick relief relief valve.
Further, described proportional pressure control valve input end is connected with control box, is furnished with UPS, PLC module in control box, and control box input end is connected with pressure transducer and mechanism speed encoder, the closed-loop system of composition control.
Compared with prior art, the beneficial effects of the utility model: under mechanism's emergency braking operating mode, hydraulic braking sytem is by the quick relief of the second relief valve, can the quick response of attainment brake hydraulic pressure device, the simultaneously voltage signal that sends of proportional pressure control valve reception control box PLC, the hydraulic coupling required for the braking of hydraulic control break second step that can be in good time and braking moment, and and pressure transducer, the closed-loop system of the speed encoder composition control of mechanism, improve control accuracy, realize steady deceleration and the parking of mechanism, eliminate traditional braking mode braking force uncontrollable, the large potential safety hazard produced is impacted in braking, the safety of support organization is normal to be run, it is the most obvious that the utility model is especially used in effect in the hoist main electromotor structures such as ship lift, can replace braking by grades mode conventional at present, elimination braking by grades mode braking force distribution is unbalanced, control accuracy is low, the undesirable potential safety hazard caused of braking effect.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present utility model.
1, motor, 2, oil pump, the 3, first relief valve, 4, one-way valve, 5, pressure relay, 6, accumulator, 7, the first solenoid directional control valve, the 8, second solenoid directional control valve, the 9, the 3rd solenoid directional control valve, 10, the 4th solenoid directional control valve, the 11, the 5th solenoid directional control valve, the 12, second relief valve, 13, proportional pressure control valve, 14, pressure transducer, 15, pressure gauge, 16, hydraulic brake, 17, fuel tank, 18, valve element position feedback limit switch.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Following examples, only for illustration of the utility model, are not used for limiting protection domain of the present utility model.
With reference to figure 1, the hydraulic braking sytem that a kind of moment of the present utility model is controlled, comprise motor 1, oil pump 2 and fuel tank 17, motor 1 is connected with oil pump 2, oil pump 2 input end is by pipeline access fuel tank 17, hydraulic oil reservoir exists in fuel tank 17, oil pump 2 output terminal is divided into two-way, one tunnel is connected with the first relief valve 3 pressure port, another road is connected with one-way valve 4 entrance, one-way valve 4 outlet is divided into four tunnels, the first via is connected with pressure relay 5 by pipeline, second tunnel is connected with accumulator 6 by pipeline, 3rd road and the 4th tunnel are in parallel, 3rd road and the 4th tunnel are distributed with for the controlled multistage solenoid directional control valve of attainment brake hydraulic pressure device 16 braking force, first relief valve 3 unloading port is connected with the second relief valve 12 unloading port and proportional pressure control valve 13 unloading port respectively.
The above-mentioned multistage solenoid directional control valve controlled for attainment brake hydraulic pressure device braking force comprises the first solenoid directional control valve 7, second solenoid directional control valve 8, the 3rd solenoid directional control valve 9, the 4th solenoid directional control valve 10 and the 5th solenoid directional control valve 11,3rd tunnel of one-way valve 4 is connected with the P2 mouth of the second solenoid directional control valve 8 with the P1 mouth of the first solenoid directional control valve 7 respectively with the 4th tunnel, and the B1 mouth of the first solenoid directional control valve 7 is connected with pressure transducer 14, pressure gauge 15, hydraulic brake 16 respectively with after the B2 mouth Parallel opertation of the second solenoid directional control valve 8, the T1 mouth of the first solenoid directional control valve 7 is connected with the B4 mouth of the 4th solenoid directional control valve 10 with the B3 mouth of the 3rd solenoid directional control valve 9 respectively with the T2 mouth of the second solenoid directional control valve 8, the T3 mouth of the 3rd solenoid directional control valve 9 is connected with the B5 mouth of the 5th solenoid directional control valve 11 with after the T4 mouth Parallel opertation of the 4th solenoid directional control valve 10, the P5 mouth of the 5th solenoid directional control valve 11 is divided into two-way, one tunnel is connected with the second relief valve 12 pressure port, another road is connected with proportional pressure control valve 13 pressure port, the T5 mouth of the 5th solenoid directional control valve 11 and the first relief valve 3 unloading port, second relief valve 12 unloading port, proportional pressure control valve 13 unloading port communicates, fuel tank 17 is taken back again by pipeline.
For avoiding mechanism in running, making hydraulic brake quick relief because arbitrary solenoid directional control valve catastrophic failure resets, the accident of uncontrollable emergency braking occurs.Select the first solenoid directional control valve 7, second solenoid directional control valve 8, the 3rd solenoid directional control valve 9, the 4th solenoid directional control valve 10 and the 5th solenoid directional control valve 11 to be two four-way electromagnetic reversing valves, Connecting format is redundant configuration.
First solenoid directional control valve 7, second solenoid directional control valve 8, the 3rd solenoid directional control valve 9, the 4th solenoid directional control valve 10 and the 5th solenoid directional control valve 11 are also provided with valve element position feedback limit switch 18.Valve element position feedback limit switch 18 makes, when arbitrary solenoid directional control valve breaks down, to send alarm signal in time, reminds operator safety to shut down, and changes the solenoid directional control valve of fault in time, eliminate potential potential safety hazard.
Above-mentioned second relief valve 12 is quick relief relief valve.When mechanism's emergency braking, by the partial pressure oil of the second relief valve 12 quick relief hydraulic brake 16, load corresponding braking moment, realize quick response when braking initial.
Proportional pressure control valve 13 input end is connected with control box, is furnished with UPS, PLC module in control box, and control box input end is connected with pressure transducer 14 and mechanism speed encoder, and the closed-loop system of composition control can improve control accuracy.Under emergency braking, control box provides power supply by UPS for subsequent use, control PLC module exports 0 ~ 10V voltage signal to proportional pressure control valve 13, the signal of PLC module receiving system pressure transducer 14 and mechanism speed encoder simultaneously, by PLC computing, adjustment in good time outputs to the voltage signal of proportional pressure control valve 13, the hydraulic coupling of hydraulic control break 16, thus the braking moment of control brake, make institution secure slow down stably and stop.
Come below to set forth further, the hydraulic braking sytem working principle that a kind of moment of the present utility model is controlled:
When mechanism normally runs, after braking system receives hydraulic brake 16 OPEN that main frame sends, motor 1 starts, drive oil pump 2 build-up pressure, first solenoid directional control valve 7, second solenoid directional control valve 8, the 3rd solenoid directional control valve 9, the 4th solenoid directional control valve 10 are energized, and by pressure relay 5, the pressurize of accumulator 6 control system, now system pressure oil flowing and pass and divide two-way for route: the first via is oil pump 2 → one-way valve 4 → accumulator 6 → the first solenoid directional control valve 7P1 mouth → the first solenoid directional control valve 7B1 mouth → hydraulic brake 16; Second tunnel is oil pump 2 → one-way valve 4 → accumulator 6 → the second solenoid directional control valve 8P2 mouth → the second solenoid directional control valve 8B2 mouth → hydraulic brake 16, and hydraulic brake 16 realizes opening under two-way action of hydraulic force.
When the first solenoid directional control valve 7 break down cannot adhesive time, first the valve element position feedback limit switch 18 of the first solenoid directional control valve 7 sends the first solenoid directional control valve 7 trouble signal, now system pressure oil flow and biography for route are: oil pump 2 → one-way valve 4 → accumulator 6 → the second solenoid directional control valve 8P2 mouth → the second solenoid directional control valve 8B2 mouth → hydraulic brake 16 → the first solenoid directional control valve 7B1 mouth → the first solenoid directional control valve 7T1 mouth → the 3rd solenoid directional control valve 9B3 mouth → the 3rd solenoid directional control valve 9P3 mouth, and the 3rd solenoid directional control valve 9P3 mouth in such a system passage be cut off, hydraulic brake 16 realizes opening under a road action of hydraulic force.
When the second solenoid directional control valve 8 break down cannot adhesive time, first the valve element position feedback of the second solenoid directional control valve 8 is spacing sends the second solenoid directional control valve 8 trouble signal, now system pressure oil flow and biography for route are: oil pump 2 → one-way valve 4 → accumulator 6 → the first solenoid directional control valve 7P1 mouth → the first solenoid directional control valve 7B1 mouth → hydraulic brake 16 → the second solenoid directional control valve 8B2 mouth → the second solenoid directional control valve 8T2 mouth → the 4th solenoid directional control valve 10B4 mouth → the 4th solenoid directional control valve 10P4 mouth, and the 4th solenoid directional control valve 10P4 mouth in such a system passage be cut off, hydraulic brake 16 is opened under a road action of hydraulic force.
When above-mentioned first solenoid directional control valve 7 or the second solenoid directional control valve 8 break down hydraulic oil flowing and pass for route, be suitable for operating mode during the arbitrary solenoid directional control valve fault occurred when hydraulic brake 16 maintains open mode equally, the redundancy of solenoid directional control valve is arranged, and avoids the uncontrollable emergency braking accident that hydraulic brake 16 causes due to solenoid directional control valve fault.
In mechanism's normal course of operation, after braking system receives the emergency shutdown instruction that main frame sends, 5th solenoid directional control valve 11 is energized, first solenoid directional control valve 7, second solenoid directional control valve 8, the 3rd solenoid directional control valve 9, the 4th solenoid directional control valve 10 dead electricity, now hydraulic brake 16 pressure oil flowing and pass and divide two-way for route: the first via is hydraulic brake 16 → the first solenoid directional control valve 7B1 mouth → the first solenoid directional control valve 7T1 mouth → the 3rd solenoid directional control valve 9B3 mouth → the 3rd solenoid directional control valve 9T3 mouth → the 5th solenoid directional control valve 11B5 mouth, second tunnel is hydraulic brake 16 → the second solenoid directional control valve 8B2 mouth → the second solenoid directional control valve 8T2 mouth → the 4th solenoid directional control valve 10B4 mouth → the 4th solenoid directional control valve 10T4 mouth → the 5th solenoid directional control valve 11B5 mouth, after two-way pressure oil communicates to the 5th solenoid directional control valve 11B5 mouth merging, import the 5th solenoid directional control valve 11P5 mouth together again, point two-way after flowing out from the 5th solenoid directional control valve 11P5 mouth, one tunnel enters the second relief valve 12 pressure port, and from the second relief valve 12 unloading port quick relief partial pressure oil, realize the quick laminating of break and brake disc (or Brake drum), loading section braking moment, realize quick response when braking initial, another road enters proportional pressure control valve 13 pressure port, the voltage signal of proportional pressure control valve 13 by sending after reception control box PLC computing simultaneously, the in good time braking moment required for the braking of hydraulic control break 16 second step, and with pressure transducer 14, the closed-loop system of the speed encoder composition control of mechanism, improve control accuracy, realize steady deceleration and the parking of mechanism, the safety of support organization is normal to be run.
Claims (6)
1. the hydraulic braking sytem that a moment is controlled, comprise motor, oil pump and fuel tank, described motor is connected with oil pump, described oil pump input end accesses fuel tank by pipeline, it is characterized in that: described oil pump output terminal is divided into two-way, one tunnel is connected with the first relief valve pressure port, another road is connected with one-way valve inlet, described one-way valved outlet is divided into four tunnels, the first via is connected with pressure relay by pipeline, second tunnel is connected with accumulator by pipeline, 3rd road and the 4th tunnel are in parallel, 3rd road and the 4th tunnel are distributed with for the controlled multistage solenoid directional control valve of attainment brake hydraulic pressure device braking force, described first relief valve unloading port is connected with the second relief valve unloading port and proportional pressure control valve unloading port respectively.
2. the hydraulic braking sytem that a kind of moment according to claim 1 is controlled, it is characterized in that: the multistage solenoid directional control valve controlled for attainment brake hydraulic pressure device braking force comprises the first solenoid directional control valve, second solenoid directional control valve, 3rd solenoid directional control valve, 4th solenoid directional control valve and the 5th solenoid directional control valve, 3rd tunnel of described one-way valve is connected with the P2 mouth of the second solenoid directional control valve with the P1 mouth of the first solenoid directional control valve respectively with the 4th tunnel, after the B1 mouth of the first solenoid directional control valve and the B2 mouth Parallel opertation of the second solenoid directional control valve respectively with pressure transducer, pressure gauge, hydraulic brake connects, the T1 mouth of described first solenoid directional control valve and the T2 mouth of the second solenoid directional control valve are connected with the B4 mouth of the 4th solenoid directional control valve with the B3 mouth of the 3rd solenoid directional control valve respectively, the T3 mouth of the 3rd solenoid directional control valve is connected with the B5 mouth of the 5th solenoid directional control valve with after the T4 mouth Parallel opertation of the 4th solenoid directional control valve, the P5 mouth of the 5th solenoid directional control valve is divided into two-way, one tunnel is connected with the second relief valve pressure port, another road is connected with proportional pressure control valve pressure port, the T5 mouth of the 5th solenoid directional control valve and the first relief valve unloading port, second relief valve unloading port, proportional pressure control valve unloading port communicates, fuel tank is taken back again by pipeline.
3. the hydraulic braking sytem that a kind of moment according to claim 2 is controlled, it is characterized in that: described first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve and the 5th solenoid directional control valve are two four-way electromagnetic reversing valves, and Connecting format is redundant configuration.
4. the hydraulic braking sytem that a kind of moment according to claim 2 is controlled, is characterized in that: described first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, the 4th solenoid directional control valve and the 5th solenoid directional control valve are also provided with valve element position feedback limit switch.
5. the hydraulic braking sytem that a kind of moment according to claim 1 and 2 is controlled, is characterized in that: described second relief valve is quick relief relief valve.
6. the hydraulic braking sytem that a kind of moment according to claim 1 and 2 is controlled, it is characterized in that: described proportional pressure control valve input end is connected with control box, UPS, PLC module is furnished with in control box, control box input end is connected with pressure transducer and mechanism speed encoder, the closed-loop system of composition control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420788511.XU CN204387167U (en) | 2014-12-15 | 2014-12-15 | The hydraulic braking sytem that a kind of moment is controlled |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420788511.XU CN204387167U (en) | 2014-12-15 | 2014-12-15 | The hydraulic braking sytem that a kind of moment is controlled |
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| CN204387167U true CN204387167U (en) | 2015-06-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438780A (en) * | 2016-10-25 | 2017-02-22 | 广东技术师范学院 | Hydraulic emergency braking system |
| CN106740970A (en) * | 2016-12-14 | 2017-05-31 | 中车株洲电力机车有限公司 | Track train brake fluid system and its auxiliary relief device |
| CN111016864A (en) * | 2019-12-31 | 2020-04-17 | 中铁磁浮科技（成都）有限公司 | Hydraulic braking system suitable for suspension type rail vehicle |
| CN113581242A (en) * | 2021-09-03 | 2021-11-02 | 上海外高桥造船有限公司 | Micro-motion device, wheel-rail travelling mechanism and micro-motion control method |
| CN115523247A (en) * | 2022-09-16 | 2022-12-27 | 中国长江电力股份有限公司 | Emergency braking system and method for ship lift ship reception chamber driving device |
-
2014
- 2014-12-15 CN CN201420788511.XU patent/CN204387167U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438780A (en) * | 2016-10-25 | 2017-02-22 | 广东技术师范学院 | Hydraulic emergency braking system |
| CN106740970A (en) * | 2016-12-14 | 2017-05-31 | 中车株洲电力机车有限公司 | Track train brake fluid system and its auxiliary relief device |
| CN106740970B (en) * | 2016-12-14 | 2019-02-26 | 中车株洲电力机车有限公司 | Track train brake fluid system and its auxiliary relief device |
| CN111016864A (en) * | 2019-12-31 | 2020-04-17 | 中铁磁浮科技（成都）有限公司 | Hydraulic braking system suitable for suspension type rail vehicle |
| CN113581242A (en) * | 2021-09-03 | 2021-11-02 | 上海外高桥造船有限公司 | Micro-motion device, wheel-rail travelling mechanism and micro-motion control method |
| CN115523247A (en) * | 2022-09-16 | 2022-12-27 | 中国长江电力股份有限公司 | Emergency braking system and method for ship lift ship reception chamber driving device |
| CN115523247B (en) * | 2022-09-16 | 2024-04-16 | 中国长江电力股份有限公司 | Emergency braking system and method for ship lift ship reception box driving device |
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