CN108819933B - Double-driving-position parking brake control system of engineering machinery - Google Patents
Double-driving-position parking brake control system of engineering machinery Download PDFInfo
- Publication number
- CN108819933B CN108819933B CN201810668494.9A CN201810668494A CN108819933B CN 108819933 B CN108819933 B CN 108819933B CN 201810668494 A CN201810668494 A CN 201810668494A CN 108819933 B CN108819933 B CN 108819933B
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- Prior art keywords
- relay
- brake
- power supply
- auxiliary
- main
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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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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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
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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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a parking brake control system with double driving positions for engineering machinery, and belongs to the field of engineering machinery. The technical proposal is as follows: the brake system comprises a main starting switch, a main power interlocking relay, a main power relay, a main brake switch, an auxiliary starting switch, an auxiliary power interlocking relay, an auxiliary power relay, an auxiliary brake switch, a brake switching relay, a brake electromagnetic valve and a storage battery, wherein a normally open contact of the main power relay is connected with the main brake switch, a normally open contact of the auxiliary power relay is connected with the auxiliary brake switch, and a normally closed contact of the brake switching relay is connected with the main brake switch; the coil end of the main power supply interlocking relay is connected with the normally open coil end of the auxiliary power supply relay; the coil end of the auxiliary power supply interlocking relay is connected with the normally open coil end of the main power supply relay. The invention realizes the completion of parking braking by two driving positions which are not mutually interfered, and can effectively prevent misoperation.
Description
Technical Field
The invention belongs to an engineering machinery control system, and particularly relates to a double-driving-position parking brake control system of engineering machinery.
Background
As is well known, engineering machinery generally has a large self-weight and a large inertia. If the brake is not effective after parking, the phenomenon of sliding car and the like may be caused, and the consequences are dangerous.
In the current industry, most engineering machinery is operated by a single driving position, and the electronic parking control can rarely realize simultaneous control of double driving positions. And, the double driving position control requirement is realized: 1. any one driving position can control the parking brake and release brake of the whole machine and is not influenced by whether the other driving position is parked currently or not; 2. and after the whole machine is powered off, the whole machine automatically brakes. Therefore, a parking brake system capable of realizing the double-steering-position control is required for the construction machine with the double-steering-position control.
Disclosure of Invention
The invention aims to provide a parking brake control system with double driving positions for engineering machinery, which can realize simultaneous control of the double driving positions, so as to overcome the defect that the parking brake control system for engineering machinery in the prior art can only realize single driving position operation.
The invention is realized by adopting the following technical scheme:
the invention discloses a parking brake control system with double driving positions for engineering machinery, which comprises a main starting switch, a main power supply interlocking relay, a main power supply relay, a main brake switch, an auxiliary starting switch, an auxiliary power supply interlocking relay, an auxiliary power supply relay, an auxiliary brake switch, a brake switching relay, a brake solenoid valve and a storage battery, wherein the main starting switch controls the storage battery to supply power to a coil of the main power supply relay through a normally closed contact of the main power supply interlocking relay, a normally open contact of the main power supply relay is connected with the main brake switch, the auxiliary starting switch controls the storage battery to supply power to the coil of the auxiliary power supply relay through a normally closed contact of the auxiliary power supply interlocking relay, the normally open contact of the auxiliary power supply relay is connected with the auxiliary brake switch, the normally open contact of the brake switching relay is connected with the auxiliary brake switch, and the normally closed contact of the brake switching relay is connected with the main brake switch; the coil end of the main power supply interlocking relay is connected with the normally open coil end of the auxiliary power supply relay; the coil end of the auxiliary power supply interlocking relay is connected with the normally open coil end of the main power supply relay.
And a safety is connected to the output lead of the storage battery.
The brake electromagnetic valve loop is connected with an emergency brake switch, and two ends of the emergency brake switch are respectively connected with a brake electromagnetic valve and a storage battery cathode.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention adopts a power-off braking strategy, meets multiple conditions, can release braking only by the whole machine, and has high safety performance;
(2) The invention realizes the completion of parking braking by two driving positions which are not mutually interfered, and can effectively prevent misoperation;
(3) The invention does not use complex control elements such as a controller, has economic design, good control effect and obvious market competition advantage.
Drawings
FIG. 1 is a schematic circuit diagram of the present invention;
in the figure: 1. a main start switch; 2. a main power supply interlock relay; 3. a main power relay; 4. a main brake switch; 5. safety; 6. a secondary start switch; 7. a secondary power interlock relay; 8. an auxiliary power relay; 9. an auxiliary brake switch; 10. a brake switching relay; 11. a brake solenoid valve; 12. an emergency brake switch; 13. and a storage battery.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the parking brake control system with double driving positions for engineering machinery comprises a main starting switch 1, a main power interlocking relay 2, a main power relay 3, a main brake switch 4, a secondary starting switch 6, a secondary power interlocking relay 7, a secondary power relay 8, a secondary brake switch 9, a brake switching relay 10, a brake solenoid valve 11 and a storage battery 13, wherein the main starting switch 1 controls the storage battery 13 to supply power to a coil of the main power relay 3 through a normally closed contact of the main power interlocking relay 2, a normally open contact of the main power relay 3 is connected with the main brake switch 4, the secondary starting switch 6 controls the storage battery 13 to supply power to a coil of the secondary power relay 8 through a normally closed contact of the secondary power interlocking relay 7, a normally open contact of the secondary power relay 8 is connected with the secondary brake switch 9, a coil end of the brake switching relay 10 is connected with a normally open contact of the secondary power relay 8, a normally open contact of the brake switching relay 10 is connected with the secondary brake switch 9, and a normally closed contact of the brake switching relay 10 is connected with the main brake switch 4; the coil end of the main power supply interlocking relay 2 is connected with the normally open coil end of the auxiliary power supply relay 8; the coil end of the auxiliary power supply interlocking relay 7 is connected with the normally open coil end of the main power supply relay 3.
Further, a safety device 5 is connected to the output wire of the battery 13.
Further, an emergency brake switch 12 is connected to the brake solenoid valve 11 loop, two ends of the emergency brake switch 12 are respectively connected with the brake solenoid valve 11 and the negative electrode of the storage battery 13, and when a brake system fault is detected, the emergency brake switch 12 is disconnected, and the whole machine brakes.
When the main starting switch 1 in the main cab is turned ON, the storage battery 13 supplies power to the coil of the main power supply relay 3 through the normally closed contact of the main power supply interlocking relay 2, the coil of the main power supply relay 3 is electrified, so that the normally open contact of the main power supply relay 3 is switched ON, and the 1 hole of the main braking switch 4 is electrified; when the main brake switch 4 is switched to the ON position, the brake solenoid valve 11 is electrified through the normally closed contact of the brake switching relay 10, and the whole machine releases the brake; if the main brake switch 4 is turned to the OFF position, the brake electromagnetic valve 11 is powered OFF, and the whole machine brakes; at this time, no matter where the auxiliary starting switch 6 and the auxiliary braking switch 9 are located, the operation of the main braking switch 4 is not affected.
When the auxiliary starting switch 6 in the auxiliary cab is switched ON, the storage battery 13 supplies power to the coil of the auxiliary power supply relay 8 through the normally closed contact of the auxiliary power supply interlocking relay 7, the coil of the auxiliary power supply relay 8 is powered ON, the normally open contact of the auxiliary power supply relay 8 is switched ON, the 1 hole of the auxiliary braking switch 9 is powered ON, and meanwhile the coil of the braking switching relay 10 is powered ON; when the auxiliary brake switch 9 is switched to the ON position, the brake solenoid valve 11 is electrified through the normally closed contact of the brake switching relay 10, and the whole machine releases the brake; if the auxiliary brake switch 9 is turned to the OFF position, the brake electromagnetic valve 11 is powered OFF, and the whole machine is braked; at this time, no influence is exerted on the operation of the auxiliary brake switch 9 regardless of the positions of the main start switch 1 and the main brake switch 4.
Claims (2)
1. The utility model provides a two driving position parking braking control system of engineering machine tool which characterized in that: the auxiliary power supply control device comprises a main starting switch (1), a main power supply interlocking relay (2), a main power supply relay (3), a main brake switch (4), an auxiliary starting switch (6), an auxiliary power supply interlocking relay (7), an auxiliary power supply relay (8), an auxiliary brake switch (9), a brake switching relay (10), a brake electromagnetic valve (11) and a storage battery (13), wherein the main starting switch (1) controls the storage battery (13) to supply power to a coil of the main power supply relay (3) through a normally closed contact of the main power supply interlocking relay (2), a normally open contact of the main power supply relay (3) is connected with the main brake switch (4), the auxiliary starting switch (6) controls the storage battery (13) to supply power to a coil of the auxiliary power supply relay (8) through a normally closed contact of the auxiliary power supply interlocking relay (7), a normally open contact of the auxiliary power supply relay (8) is connected with the auxiliary brake switch (9), a normally open contact of the brake switching relay (10) is connected with a normally open contact of the auxiliary power supply relay (8), and the normally closed contact of the brake switching relay (10) is connected with the normally closed contact of the auxiliary brake switch (4); the coil end of the main power supply interlocking relay (2) is connected with the normally open coil end of the auxiliary power supply relay (8); the coil end of the auxiliary power interlocking relay (7) is connected with the normally open coil end of the main power relay (3), the brake electromagnetic valve (11) is connected with the normally closed contact of the brake switching relay (10), an emergency brake switch (12) is connected to the brake electromagnetic valve (11) loop, and two ends of the emergency brake switch (12) are respectively connected with the brake electromagnetic valve (11) and the negative electrode of the storage battery (13).
2. The construction machine dual-operator parking brake control system according to claim 1, wherein: and a safety (5) is connected to the output lead of the storage battery (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668494.9A CN108819933B (en) | 2018-06-26 | 2018-06-26 | Double-driving-position parking brake control system of engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668494.9A CN108819933B (en) | 2018-06-26 | 2018-06-26 | Double-driving-position parking brake control system of engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108819933A CN108819933A (en) | 2018-11-16 |
| CN108819933B true CN108819933B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810668494.9A Active CN108819933B (en) | 2018-06-26 | 2018-06-26 | Double-driving-position parking brake control system of engineering machinery |
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| CN (1) | CN108819933B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561952B (en) * | 2021-08-24 | 2022-04-19 | 浙江吉利控股集团有限公司 | Parking braking system of vehicle and vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06144210A (en) * | 1992-11-13 | 1994-05-24 | Hitachi Constr Mach Co Ltd | Parking brake device for working vehicle |
| US5630489A (en) * | 1995-11-29 | 1997-05-20 | Deere & Company | Electrohydraulic parking brake control system for preventing brake engagement when vehicle is in motion |
| CN201240371Y (en) * | 2008-07-27 | 2009-05-20 | 永济新时速电机电器有限责任公司 | Parking brake control device for locomotive |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181369A (en) * | 1978-12-26 | 1980-01-01 | Westinghouse Air Brake Company | Pneumatic/electro-pneumatic brake control system with interlock circuitry for push/pull train operation |
| JPH08290765A (en) * | 1995-04-20 | 1996-11-05 | Nabco Ltd | Brake control device for rolling stock |
| US5718487A (en) * | 1996-01-23 | 1998-02-17 | Westinghouse Air Brake Company | Brake control system for doubled ended locomotive |
| DE19637484A1 (en) * | 1996-09-14 | 1998-03-19 | Wabco Gmbh | Two-line trailer brake system |
| JP2008179191A (en) * | 2007-01-23 | 2008-08-07 | Advics:Kk | Brake controller for vehicle |
| JP5407996B2 (en) * | 2010-03-31 | 2014-02-05 | 株式会社アドヴィックス | Brake control device for vehicle |
| CN103538572B (en) * | 2013-10-14 | 2015-11-11 | 魏建秋 | Electronic controllable power formula vehicle sub-brake method |
| WO2015154787A1 (en) * | 2014-04-09 | 2015-10-15 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Electro-pneumatic parking brake control device |
| CN107472229A (en) * | 2017-07-27 | 2017-12-15 | 山东临工工程机械有限公司 | Loading machine electric control parking braking control system |
| CN208344209U (en) * | 2018-06-26 | 2019-01-08 | 山东临工工程机械有限公司 | The double operator seat parking braking control systems of engineering machinery |
-
2018
- 2018-06-26 CN CN201810668494.9A patent/CN108819933B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06144210A (en) * | 1992-11-13 | 1994-05-24 | Hitachi Constr Mach Co Ltd | Parking brake device for working vehicle |
| US5630489A (en) * | 1995-11-29 | 1997-05-20 | Deere & Company | Electrohydraulic parking brake control system for preventing brake engagement when vehicle is in motion |
| CN201240371Y (en) * | 2008-07-27 | 2009-05-20 | 永济新时速电机电器有限责任公司 | Parking brake control device for locomotive |
Non-Patent Citations (1)
| Title |
|---|
| 轮式挖掘机智能控制系统设计;郑磊;葛瑞彩;;建筑机械化(02);全文 * |
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| CN108819933A (en) | 2018-11-16 |
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