CN107472230A - A kind of hydraulic driven road roller brakes - Google Patents
A kind of hydraulic driven road roller brakes Download PDFInfo
- Publication number
- CN107472230A CN107472230A CN201710728981.5A CN201710728981A CN107472230A CN 107472230 A CN107472230 A CN 107472230A CN 201710728981 A CN201710728981 A CN 201710728981A CN 107472230 A CN107472230 A CN 107472230A
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- CN
- China
- Prior art keywords
- brake
- switch
- relay
- road roller
- trailing wheel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Control Of Fluid Gearings (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of hydraulic driven road roller brakes, including emergency stop switch（1）, front-wheel become gear switch（2）, handle middle position detection switch（3）, trailing wheel become gear switch（4）, brake detection switch（5）, park brake switch（6）, Engine ECU（7）, front-wheel shift relay（8）, trailing wheel shift relay（9）, foot brake relay（10）, front-wheel shift valve（11）, trailing wheel shift valve（12）, pump swash plate return in valve（13）, brake valve（14）.A kind of hydraulic driven road roller brakes provided by the invention, two level service brake is equipped with, reduces service brake distance；Parking braking, brake hard independently separate, and functional definition is clearly demarcated；Emergency stop switch cuts off all output control signals of complete machine.
Description
Technical field
The present invention relates to a kind of brakes, and in particular to a kind of hydraulic driven road roller brakes.
Background technology
Road roller belongs to the category of compacting equipment in engineering machinery, can be divided into Mechanical Driven by driving principle, hydraulic pressure drives
The type such as dynamic.After hydraulic driven road roller brake apparatus middle rolling car braking at present mainly passes through during handle returns, transfer tube aneroid
Force feed output, road roller slow down until stopping, and when road roller travels in fair speed, braking distance length, security reliability is poor,
Generally existing brake hard shares a switch with parking braking in hydraulic driven road roller brake apparatus at present, and functional definition mixes
Disorderly, it is easy to maloperation is caused, causes the damage of drive axle and reductor, and emergency stop switch power-off is not thorough, easily
Road roller parts are caused to damage.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of hydraulic driven road roller brakes, can effectively reduce
Road roller service brake distance, improve travel safety；Further, parking braking, brake hard independently separate, functional definition
Clearly, maloperation is prevented；Further, emergency stop switch power-off is thorough, can cut off all output control signals of complete machine.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of hydraulic driven road roller brakes, including emergency stop switch, the emergency stop switch respectively with it is preceding
Wheel becomes gear switch, handle middle position detection switch, trailing wheel change gear switch, brake detection switch and is connected with Engine ECU, the front-wheel
Become gear switch and trailing wheel becomes 30 ends of the gear switch respectively with front-wheel shift relay and trailing wheel shift relay and is connected, the front-wheel
Shift relay and trailing wheel shift relay are connected with front-wheel shift valve and trailing wheel shift valve respectively, and the handle middle position detection is opened
Close 85 ends respectively with the front-wheel shift relay and trailing wheel shift relay to be connected, the handle middle position detection switch and institute
75 ends for stating Engine ECU are connected, the brake detection switch respectively with 85 ends of foot brake relay and it is described be connected start
Machine ECU 55 ends are connected, and 87a ends and the pump swash plate of the foot brake relay return middle valve and be connected, the foot brake relay
30 ends are connected with the emergency stop switch.
The emergency stop switch and park brake switch are normally closed switch.
Front-wheel shift relay, trailing wheel shift relay and the foot brake relay are closed type relay.
The front-wheel becomes gear switch, handle middle position detection switch, trailing wheel and becomes gear switch and brake detection switch as open type
Switch.
The external 24V power supplys of emergency stop switch, powered for whole system.
The emergency stop switch is connected with park brake switch, and the park brake switch is connected with brake valve.
The beneficial effects of the invention are as follows：
Firstth, two level service brake is equipped with, braking distance is all substantially reduced per one-level service brake, substantially increases pressure
The service brake security of road machine.
Secondth, parking braking, brake hard independently separate, functional definition is clearly demarcated, prevents maloperation, cause drive axle and
The damage of reductor.
3rd, it after brake hard, can realize that engine emergency stops working, cut off all output control signals of complete machine, effectively
The parts of road roller are protected, greatly improve the brake safe reliability of road roller.
Brief description of the drawings
Fig. 1 is a kind of connection relationship diagram of hydraulic driven road roller brakes of the present invention.
The mark meaning of accompanying drawing is as follows：1st, emergency stop switch, 2, front-wheel become gear switch, 3, handle middle position detection switch,
4th, trailing wheel becomes gear switch, 5, brake detection switch, 6, park brake switch, 7, Engine ECU, 8, front-wheel shift relay, 9,
Trailing wheel shift relay, 10, foot brake relay, 11, front-wheel shift valve, 12, trailing wheel shift valve, 13, pump swash plate return in valve,
14th, brake valve.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings, and following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in figure 1, a kind of hydraulic driven road roller brakes, becomes gear switch 2, hand by emergency stop switch 1, front-wheel
Handle middle position detection switch 3, trailing wheel become gear switch 4, brake detection switch 5, the park brake switch 6, (ECU of Engine ECU 7
Electronic Control Unit：Electronic control unit), front-wheel shift relay 8, trailing wheel shift relay 9, foot brake
Valve 13, brake valve 14 form during relay 10, front-wheel shift valve 11, trailing wheel shift valve 12, pump swash plate return.
Wherein, emergency stop switch 1 becomes gear switch 2, handle middle position detection switch 3, trailing wheel with front-wheel and becomes gear switch respectively
4th, brake detection switch 5, park brake switch 6 are connected with Engine ECU 7, and front-wheel becomes gear switch 2 and trailing wheel becomes gear switch 4 and divided
30 ends not with front-wheel shift relay 8 and trailing wheel shift relay 9 are connected.Front-wheel shift relay 8 and trailing wheel shift relay
Device 9 is connected with front-wheel shift valve 11 and trailing wheel shift valve 12 respectively, handle middle position detection switch 3 respectively with front-wheel shift relay
8 are connected with 85 ends of trailing wheel shift relay 9, and handle middle position detection switch 3 is connected with 75 ends of Engine ECU 7.Brake detection
Switch 5 is connected with 85 ends of foot brake relay 10 and 55 ends of Engine ECU 7 respectively, the 87a ends of foot brake relay 10 with
Valve 13 is connected during pump swash plate returns.30 ends of foot brake relay 10 are connected with emergency stop switch 1.Park brake switch 6 and system
Dynamic valve 14 is connected.
When during control crank returns, road roller realizes first order service brake, and handle middle position detection switch 3 closes no matter
Front-wheel becomes gear switch 2, and trailing wheel becomes gear switch 4 and closes or disconnect, front-wheel shift relay 8 and the 85 of trailing wheel shift relay 9
End obtains the electric signal of handle middle position detection switch 3, before the 87a ends cut-out of front-wheel shift relay 8 and trailing wheel shift relay 9
The power supply of shift valve 11 and trailing wheel shift valve 12 is taken turns, front and rear wheel drive motor is changed into huge discharge from small displacement, at the same time started
Machine ECU 7 75 ends obtain the closure signal of handle middle position detection switch 3, and control engine speed is reduced to the idle speed value of setting, pressure
Road machine is because engine speed is reduced to setting idle speed value in first order service braking operation, and front and rear wheel motor is by small displacement
It is changed into huge discharge, road roller deceleration ramp in stopping process is become big, reduce road roller service brake distance.
When stepping on foot brake, road roller realizes second level service brake, and brake detection switch 5 closes, foot brake relay
10 85 ends obtain the electric signal that detection switch 5 closes that brakes, and the 87a ends cut-out pump swash plate of foot brake relay 10 returns middle valve 13
Power supply, during pump swash plate returns, cut off hydraulic power supply, at the same time 55 ends of Engine ECU 7 detection switch 5 that obtains braking is closed
Close signal, control engine speed is reduced to the idle speed value of setting, during both first and second grade of service brakes cooperating, Ke Yi great
It is big to reduce service brake distance, the service brake security reliability of road roller is improved, second level service brake can also be grasped individually
Make, after service brake, control crank will return middle position in time.
When the static stop of road roller is on the slope or during smooth-riding surface, park brake switch 6 is pressed, cut-out brake valve 14
Power supply, vehicle braking are locked, it is possible to achieve parking braking.
When road roller meets with emergency situations in the process of moving, emergency stop switch 1 can be pressed, due to brake hard
The general supply of the control brakes of switch 1, now whole brakes power-off, can be achieved the brake hard of vehicle, press urgent
Brake switch 1 can control engine emergency to stop working, and cut off all output control signals of whole system, preferably protect complete machine
The security of each parts, greatly improve the brake safe reliability of road roller.
The present invention is equipped with two level service brake, is greatly reduced service brake distance, two level service brake can both cooperate with
Operation, but it is independently operable, improve the service brake security of road roller.Parking braking, brake hard independently separate, function
Define clearly, prevent maloperation, cause the damage of drive axle and reductor.After emergency brake operations, engine can be realized
It is urgent flame-out, all output control signals of whole system are cut off, effectively protect the parts of road roller, greatly improve pressure road
The brake safe reliability of machine.
A kind of hydraulic driven road roller brakes of the present invention, compact-sized, easy for installation, dependable performance, is greatly carried
High road roller brake safe reliability.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure that bright specification and accompanying drawing content are made either equivalent flow conversion or to be directly or indirectly used in other related
Technical field, be included within the scope of the present invention.
Claims (6)
- A kind of 1. hydraulic driven road roller brakes, it is characterised in that：Including emergency stop switch（1）, the brake hard Switch（1）Become gear switch with front-wheel respectively（2）, handle middle position detection switch（3）, trailing wheel become gear switch（4）, brake detection switch （5）And Engine ECU（7）It is connected, the front-wheel becomes gear switch（2）Become gear switch with trailing wheel（4）Respectively with front-wheel shift relay Device（8）With trailing wheel shift relay（9）30 ends be connected, the front-wheel shift relay（8）With trailing wheel shift relay（9）Point Not with front-wheel shift valve（11）With trailing wheel shift valve（12）It is connected, the handle middle position detection switch（3）Respectively with the front-wheel Shift relay（8）With trailing wheel shift relay（9）85 ends be connected, the handle middle position detection switch（3）Start with described Machine ECU（7）75 ends be connected, the brake detection switch（5）Respectively with foot brake relay（10）85 ends be connected with described Engine ECU（7）55 ends be connected, the foot brake relay（10）87a ends returned with pump swash plate in valve（13）It is connected, it is described Foot brake relay（10）30 ends and the emergency stop switch（1）It is connected.
- A kind of 2. hydraulic driven road roller brakes according to claim 1, it is characterised in that：The brake hard is opened Close（1）And park brake switch（6）For normally closed switch.
- A kind of 3. hydraulic driven road roller brakes according to claim 1, it is characterised in that：The front-wheel shift after Electrical equipment（8）, trailing wheel shift relay（9）With foot brake relay（10）For closed type relay.
- A kind of 4. hydraulic driven road roller brakes according to claim 1, it is characterised in that：The front-wheel shift is opened Close（2）, handle middle position detection switch（3）, trailing wheel become gear switch（4）With brake detection switch（5）Switched for open type.
- A kind of 5. hydraulic driven road roller brakes according to claim 1, it is characterised in that：The brake hard is opened Close（1）External 24V power supplys, powered for whole system.
- A kind of 6. hydraulic driven road roller brakes according to claim 1, it is characterised in that：The brake hard is opened Close（1）With park brake switch（6）It is connected, the park brake switch（6）With brake valve（14）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710728981.5A CN107472230B (en) | 2017-08-23 | 2017-08-23 | Hydraulic drive road roller braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710728981.5A CN107472230B (en) | 2017-08-23 | 2017-08-23 | Hydraulic drive road roller braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107472230A true CN107472230A (en) | 2017-12-15 |
| CN107472230B CN107472230B (en) | 2023-07-07 |
Family
ID=60601171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710728981.5A Active CN107472230B (en) | 2017-08-23 | 2017-08-23 | Hydraulic drive road roller braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107472230B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425759A (en) * | 2018-03-30 | 2018-08-21 | 徐工集团工程机械股份有限公司 | A kind of engineering machinery control device and working method |
| CN114872670A (en) * | 2022-07-11 | 2022-08-09 | 徐工集团工程机械股份有限公司道路机械分公司 | Control method for self-adaptive adjustment of braking force of hydraulic braking road roller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1152853A (en) * | 1965-12-25 | 1969-05-21 | Sumitomo Electric Ind Ltd 62 1 | Improvements in or relating to Emergency Braking Systems for Vehicles |
| US4641892A (en) * | 1984-12-12 | 1987-02-10 | Dsl Dynamic Sciences Limited | Railway emergency brake system |
| US6193326B1 (en) * | 1998-01-12 | 2001-02-27 | Messier-Bugatti | Apparatus for braking a set of aircraft wheels |
| CN103661320A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Three-level interlocking brake system of pneumatic tyre roller |
| CN204124120U (en) * | 2014-07-17 | 2015-01-28 | 山东临工工程机械有限公司 | The emergency brake system of full hydraulic drive roller |
| CN204279400U (en) * | 2014-11-18 | 2015-04-22 | 郑州日产汽车有限公司 | Automotive electronic parking system |
| CN207360300U (en) * | 2017-08-23 | 2018-05-15 | 徐工集团工程机械股份有限公司 | A kind of hydraulic driven road roller braking system |
-
2017
- 2017-08-23 CN CN201710728981.5A patent/CN107472230B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1152853A (en) * | 1965-12-25 | 1969-05-21 | Sumitomo Electric Ind Ltd 62 1 | Improvements in or relating to Emergency Braking Systems for Vehicles |
| US4641892A (en) * | 1984-12-12 | 1987-02-10 | Dsl Dynamic Sciences Limited | Railway emergency brake system |
| US6193326B1 (en) * | 1998-01-12 | 2001-02-27 | Messier-Bugatti | Apparatus for braking a set of aircraft wheels |
| CN103661320A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Three-level interlocking brake system of pneumatic tyre roller |
| CN204124120U (en) * | 2014-07-17 | 2015-01-28 | 山东临工工程机械有限公司 | The emergency brake system of full hydraulic drive roller |
| CN204279400U (en) * | 2014-11-18 | 2015-04-22 | 郑州日产汽车有限公司 | Automotive electronic parking system |
| CN207360300U (en) * | 2017-08-23 | 2018-05-15 | 徐工集团工程机械股份有限公司 | A kind of hydraulic driven road roller braking system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425759A (en) * | 2018-03-30 | 2018-08-21 | 徐工集团工程机械股份有限公司 | A kind of engineering machinery control device and working method |
| CN108425759B (en) * | 2018-03-30 | 2024-03-12 | 徐工集团工程机械股份有限公司 | Electric control device for engineering machinery and working method |
| CN114872670A (en) * | 2022-07-11 | 2022-08-09 | 徐工集团工程机械股份有限公司道路机械分公司 | Control method for self-adaptive adjustment of braking force of hydraulic braking road roller |
| CN114872670B (en) * | 2022-07-11 | 2022-11-04 | 东南大学 | Control method for self-adaptive adjustment of braking force of hydraulic braking road roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107472230B (en) | 2023-07-07 |
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