CN107323480B - Full-hydraulic braking system for mine car - Google Patents
Full-hydraulic braking system for mine car Download PDFInfo
- Publication number
- CN107323480B CN107323480B CN201710712812.2A CN201710712812A CN107323480B CN 107323480 B CN107323480 B CN 107323480B CN 201710712812 A CN201710712812 A CN 201710712812A CN 107323480 B CN107323480 B CN 107323480B
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- valve
- port
- brake
- service brake
- parking
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 40
- 239000003921 oil Substances 0.000 claims description 55
- 239000007788 liquid Substances 0.000 claims description 48
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
- B61H11/08—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes comprising a pump or the like circulating fluid, braking being effected by throttling of the circulation
Abstract
The full hydraulic braking system for the mine car comprises a braking pump arranged on an engine, a charging valve is arranged on a car frame through a bracket, a parking braking energy accumulator, a front axle service braking energy accumulator and a middle and rear axle service braking energy accumulator are arranged on the car frame through brackets, a service braking valve is arranged on a cab bottom plate, a parking braking valve is arranged on a control box in the cab, a relay valve is arranged on a car frame cross beam through a bracket, a hydraulic control reversing valve is arranged on the car frame through a bracket, a parking braking device is arranged on a gearbox through a bracket, a service braking device is arranged on a front axle, a middle axle and a rear axle, and a hydraulic oil tank is arranged on the car frame through a bracket. The pneumatic braking device adopts the structure, has simple structure, does not need to arrange more air cylinders, occupies small space, solves the problem of high failure rate of the pneumatic braking element, and improves the reliability of a braking system.
Description
Technical field:
the invention relates to a full-hydraulic braking system for a mine car.
The background technology is as follows:
the conventional mining dumper has the defects that the structure is complex, more air cylinders are required to be arranged, the occupied space is large, the air pressure is relatively low, the braking force is limited, and the safety of the dumper is influenced.
The invention comprises the following steps:
the invention provides a full hydraulic braking system for a mine car, which is reasonable in structural design and solves the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the full hydraulic braking system for the mine car comprises a braking pump arranged on an engine, wherein a charging valve is arranged on a car frame through a bracket, a parking brake energy accumulator, a front axle service brake energy accumulator and a middle and rear axle service brake energy accumulator are arranged on the car frame through a bracket, a service brake valve is arranged on a cab bottom plate, a parking brake valve is arranged on a cab control box, a relay valve is arranged on a car frame cross beam through a bracket, a hydraulic control reversing valve is arranged on the car frame through a bracket, a parking brake is arranged on a gearbox through a bracket, a service brake is arranged on a front axle, a middle axle and a rear axle, and a hydraulic oil tank is arranged on the car frame through a bracket;
the brake pump is provided with a brake pump oil suction port and a brake pump oil discharge port, and the charging valve is provided with a charging valve A1 port, a charging valve A2 port, a charging valve O port, a charging valve T port, a charging valve P port and a charging valve SW port; the parking brake accumulator, the front axle service brake accumulator and the middle and rear axle service brake accumulator are provided with a front axle service brake accumulator port, a front axle service brake accumulator port and a middle and rear axle service brake accumulator port; the service brake valve is provided with a service brake valve T1 port, a service brake valve A1 port, a service brake valve T2 port, a service brake valve A2 port, a service brake valve P2 port and a service brake valve P1 port; the parking brake valve is provided with a parking brake valve T port, a parking brake valve P port and a parking brake valve A port; the relay valve is provided with a relay valve T port, a relay valve P port, a relay valve A port and a relay valve PP port; the hydraulic control reversing valve is provided with a hydraulic control reversing valve M port, a hydraulic control reversing valve A port and a hydraulic control reversing valve B port; the parking brake is provided with a parking brake oil port; the hydraulic oil tank is provided with a first hydraulic oil tank oil return port, a second hydraulic oil tank oil return port and a brake pump oil suction port; the service brake is provided with a service brake oil return port and a service brake oil inlet;
the brake pump suction port is connected with the brake pump suction port through a hydraulic pipeline, the brake pump suction port is connected with a liquid filling valve P port of a liquid filling valve, a liquid filling valve A1 port of the liquid filling valve is connected with a liquid filling valve P1 port of a middle and rear axle service brake accumulator through two three-way connectors, a first hydraulic oil tank oil return port of a relay valve, a liquid filling valve A2 port of the liquid filling valve is connected with a service brake valve P2 port on the service brake valve through a three-way connector, a liquid filling valve O port of the liquid filling valve is connected with a second hydraulic oil tank oil return port of the hydraulic oil tank through a three-way connector and a liquid control reversing valve A port of the liquid filling valve, a liquid filling valve SW port of the liquid filling valve is connected with a first hydraulic oil tank oil return port of the hydraulic oil tank, a liquid filling valve SW port of the liquid filling valve is connected with a parking brake accumulator and a parking brake valve P port of the parking brake valve through a three-way connector, a first hydraulic oil tank oil return port of the service brake valve T1 port of the service brake valve and the service brake valve T2 port is connected with a first hydraulic oil tank on the service brake valve, a second hydraulic oil tank oil return port of the liquid filling valve A1 port of the hydraulic oil tank is connected with a liquid filling valve A2 port of the parking brake valve is connected with a liquid control valve A port of the parking brake valve, a liquid filling valve B port of the liquid control valve B is connected with a liquid control valve B of the parking brake valve B, a liquid filling valve B is connected with a liquid control valve B port of the parking valve B is connected with the liquid tank B port of the parking valve B is connected with the parking valve B port of the parking valve B, the parking brake valve A port of the parking brake valve is connected with a parking brake oil port of the parking brake.
The pneumatic braking device adopts the structure, has simple structure, does not need to arrange more air cylinders, occupies small space, solves the problem of high failure rate of the pneumatic braking element, and improves the reliability of a braking system.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is a schematic structural view of the brake pump of the present invention.
FIG. 4 is a schematic view of the structure of the charging valve of the present invention.
Fig. 5 is a schematic structural view of a parking brake accumulator of the present invention.
Fig. 6 is a schematic structural diagram of the pilot operated directional control valve of the present invention.
Fig. 7 is a schematic structural view of the foot brake valve of the present invention.
Fig. 8 is a schematic structural view of the hand brake valve of the present invention.
Fig. 9 is a schematic structural view of a front axle service brake accumulator of the present invention.
Fig. 10 is a schematic structural view of the parking brake of the present invention.
Fig. 11 is a schematic structural view of a rear axle service brake accumulator according to the present invention.
Fig. 12 is a schematic view of the structure of the relay valve of the present invention.
Fig. 13 is a schematic structural view of a hydraulic mailbox according to the present invention.
Fig. 14 is a schematic structural view of a service brake according to the present invention.
Fig. 15 is a rear view of fig. 14.
In the figure, 1, a vehicle frame, 2, a rear axle, 3, a service brake, 4, a middle axle, 5, a hydraulic oil tank, 6, a front axle, 7, a charging valve, 8, a parking brake energy accumulator, 9, a hydraulic control reversing valve, 10, a brake pump, 11, a service brake valve, 12, a pressure measuring block, 13, a parking brake valve, 14, a front axle service brake energy accumulator, 15, a parking brake, 16, a middle rear axle service brake energy accumulator, 17, a relay valve, 18, a brake pump outlet, 19, a brake pump outlet, 20, a charging valve A1 port, 21, a charging valve A2 port, 22, a charging valve O port, 23, a charging valve T port, 24, a charging valve P port, 25, a charging valve SW port, 26, a front axle service brake energy accumulator port, 27, a hydraulic control reversing valve M port, 28, a hydraulic control reversing valve A port, 29, pilot operated directional valve B port, 30, service brake valve T1 port, 31, service brake valve A1 port, 32, service brake valve T2 port, 33, service brake valve A2 port, 34, service brake valve P2 port, 35, service brake valve P1 port, 36, parking brake valve T port, 37, parking brake valve P port, 38, parking brake valve a port, 39, front axle service brake accumulator port, 40, parking brake oil port, 41, mid-rear axle service brake accumulator port, 42, relay valve T port, 43, relay valve P port, 44, relay valve a port, 45, relay valve PP port, 46, hydraulic tank return port, 47, hydraulic tank return port, 48, brake pump suction port, 49, service brake return port, 50, service brake.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1-15, a full hydraulic braking system for a mine car comprises a brake pump 10 mounted on an engine, a charging valve 7 mounted on a frame through a bracket, a parking brake accumulator 8, a front axle service brake accumulator 14 and a middle and rear axle service brake accumulator 16 mounted on the frame through a bracket, a service brake valve 11 mounted on a cab floor, a parking brake valve 13 mounted on a cab console, a relay valve 17 mounted on a frame beam through a bracket, a hydraulic control reversing valve 9 mounted on the frame through a bracket, a parking brake 15 mounted on a gearbox through a bracket, a service brake 3 mounted on a front axle 6, a middle axle 4 and a rear axle 2, and a hydraulic oil tank 5 mounted on the frame through a bracket;
the brake pump 10 is provided with a brake pump suction port 19 and a brake pump suction port 18; the charging valve 7 is provided with a charging valve A1 port 20, a charging valve A2 port 21, a charging valve O port 22, a charging valve T port 23, a charging valve P port 24 and a charging valve SW port 25; the parking brake accumulator 8, the front axle service brake accumulator 14 and the middle and rear axle service brake accumulator 16 are provided with a front axle service brake accumulator oil port 26, a front axle service brake accumulator oil port 39 and a middle and rear axle service brake accumulator oil port 41; the service brake valve 11 is provided with a service brake valve T1 port 30, a service brake valve A1 port 31, a service brake valve T2 port 32, a service brake valve A2 port 33, a service brake valve P2 port 34 and a service brake valve P1 port 35; the parking brake valve 13 is provided with a parking brake valve T port 36, a parking brake valve P port 37 and a parking brake valve A port 38; the relay valve 17 is provided with a relay valve T port 42, a relay valve P port 43, a relay valve A port 44 and a relay valve PP port 45; the hydraulic control reversing valve 9 is provided with a hydraulic control reversing valve M port 27, a hydraulic control reversing valve A port 28 and a hydraulic control reversing valve B port 29; the parking brake 15 is provided with a parking brake oil port 40; the hydraulic oil tank 5 is provided with a first hydraulic oil tank oil return port 46, a second hydraulic oil tank oil return port 47 and a brake pump oil suction port 48; the service brake 3 is provided with a service brake oil return port 49 and a service brake oil inlet 50.
The brake pump suction port 48 is connected with the brake pump suction port 19 through a hydraulic pipeline, the brake pump suction port 18 is connected with the charge valve P port 24 of the charge valve 7, the charge valve A1 port 20 of the charge valve 7 is connected with the intermediate-rear axle service brake accumulator port 41 of the intermediate-rear axle service brake accumulator 16 through two three-way connectors, the service brake valve P1 port 35 of the service brake valve 11 and the first hydraulic oil tank oil return port 46 of the relay valve 17, the charge valve A2 port 21 of the charge valve 7 is connected with the service brake valve P2 port 34 on the service brake valve 11 and the front axle service brake accumulator 14 through three-way connectors, the charge valve O port 22 of the charge valve 7 is connected with the second hydraulic oil tank oil return port 47 of the hydraulic oil tank 5 and the hydraulic control reversing valve A port 28 of the hydraulic reversing valve 9 through three-way connectors, the charge valve T port 23 of the charge valve 7 is connected with the first hydraulic oil tank oil return port 46 of the hydraulic oil tank 5, the filling valve SW port 25 of the filling valve 7 is connected with the front axle service brake accumulator port 26 of the parking brake accumulator 8 and the parking brake valve P port 37 of the parking brake valve 13 through a tee joint, the service brake valve T1 port 30 and the service brake valve T2 port 32 of the service brake valve 11 are connected with the first hydraulic oil tank oil return port 46 of the hydraulic oil tank 5, the service brake valve A1 port 31 of the service brake valve 11 is connected with the relay valve PP port 45 of the relay valve 17 and the pilot control reversing valve M port 27 of the pilot control reversing valve 9, the service brake valve A2 port 33 of the service brake valve 11 is connected with the front axle service brake oil inlet 50, the pilot control reversing valve A port 28 of the pilot control reversing valve 9 is connected with the front axle, the middle axle and the rear axle service brakes 3 service brake oil return port 49, the pilot control reversing valve B port 29 of the pilot control reversing valve 9 is connected with the second hydraulic oil tank oil return port 47, the relay valve A port 44 of the relay valve 17 is connected with the pilot control reversing valve A port 50 of the middle and the rear axle service brakes 3, the relay valve T port 42 of the relay valve 17 is connected to the first hydraulic tank return port 46 of the hydraulic tank 5, the parking brake valve T port 36 of the parking brake valve 13 is connected to the first hydraulic tank return port 46 of the hydraulic tank 3, and the parking brake valve a port 38 of the parking brake valve 13 is connected to the parking brake oil port 40 of the parking brake 15.
When the vehicle is running, the parking brake valve 13 is driven to the parking release position, at the moment, oil reaches the parking brake 15 from the parking brake accumulator 8 through the parking brake valve A opening 38 of the parking brake valve 13, and after the pressure is larger than the spring force of the parking brake, the parking brake is released, and the vehicle can be driven at the moment. In the running process of the vehicle, the service brake valve 11 is trampled, oil reaches the front axle service brake 3 from the front axle service brake energy accumulator 14 through the service brake valve 11, meanwhile, oil reaches the relay valve PP port 45 of the relay valve 17 and the hydraulic control reversing valve M port 27 of the hydraulic control reversing valve 9 from the middle and rear axle service brake energy accumulator 16 through the service brake valve 11, the hydraulic control reversing valve A port 28 and the hydraulic control reversing valve B port 29 of the hydraulic control reversing valve 9 are cut off, the relay valve P port 43 and the relay valve A port 44 of the relay valve 17 are conducted, and oil reaches the middle and rear axle service brakes 3 from the middle and rear axle service brake energy accumulator 16 through the relay valve 17, and the front axle, the middle and rear axles are simultaneously subjected to service braking.
After the vehicle is stopped, the parking brake valve 13 is driven to a parking brake position, and oil reaches an oil tank from the parking brake 15 to a service brake valve T2 port 32 of the parking brake valve 13 through a service brake valve A1 port 31.
The charging valve 7 sets charging pressure, when the pressure of the front axle service brake accumulator 14 and the middle axle service brake accumulator 16 is lower than the set value, the charging valve 7 connects the high-pressure oil output by the brake pump 10 to the accumulator, otherwise, the oil returns to the oil tank from the charging valve O port 22 of the charging valve 7.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (1)
1. The utility model provides a full hydraulic braking system for mine car which characterized in that: the hydraulic control system comprises a brake pump arranged on an engine, a charging valve is arranged on a frame through a bracket, a parking brake energy accumulator, a front axle service brake energy accumulator and a middle and rear axle service brake energy accumulator are arranged on the frame through a bracket, a service brake valve is arranged on a cab bottom plate, a parking brake valve is arranged on a cab control box, a relay valve is arranged on a frame beam through a bracket, a hydraulic control reversing valve is arranged on the frame through a bracket, a parking brake is arranged on a gearbox through a bracket, a service brake is arranged on a front axle, a middle axle and a rear axle, and a hydraulic oil tank is arranged on the frame through a bracket;
the brake pump is provided with a brake pump oil suction port and a brake pump oil discharge port, and the charging valve is provided with a charging valve A1 port, a charging valve A2 port, a charging valve O port, a charging valve T port, a charging valve P port and a charging valve SW port; the parking brake accumulator, the front axle service brake accumulator and the middle and rear axle service brake accumulator are provided with a front axle service brake accumulator port, a front axle service brake accumulator port and a middle and rear axle service brake accumulator port; the service brake valve is provided with a service brake valve T1 port, a service brake valve A1 port, a service brake valve T2 port, a service brake valve A2 port, a service brake valve P2 port and a service brake valve P1 port; the parking brake valve is provided with a parking brake valve T port, a parking brake valve P port and a parking brake valve A port; the relay valve is provided with a relay valve T port, a relay valve P port, a relay valve A port and a relay valve PP port; the hydraulic control reversing valve is provided with a hydraulic control reversing valve M port, a hydraulic control reversing valve A port and a hydraulic control reversing valve B port; the parking brake is provided with a parking brake oil port; the hydraulic oil tank is provided with a first hydraulic oil tank oil return port, a second hydraulic oil tank oil return port and a brake pump oil suction port; the service brake is provided with a service brake oil return port and a service brake oil inlet;
the brake pump suction port is connected with the brake pump suction port through a hydraulic pipeline, the brake pump suction port is connected with a liquid filling valve P port of a liquid filling valve, a liquid filling valve A1 port of the liquid filling valve is connected with a liquid filling valve P1 port of a middle and rear axle service brake accumulator through two three-way connectors, a first hydraulic oil tank oil return port of a relay valve, a liquid filling valve A2 port of the liquid filling valve is connected with a service brake valve P2 port on the service brake valve through a three-way connector, a liquid filling valve O port of the liquid filling valve is connected with a second hydraulic oil tank oil return port of the hydraulic oil tank through a three-way connector and a liquid control reversing valve A port of the liquid filling valve, a liquid filling valve SW port of the liquid filling valve is connected with a first hydraulic oil tank oil return port of the hydraulic oil tank, a liquid filling valve SW port of the liquid filling valve is connected with a parking brake accumulator and a parking brake valve P port of the parking brake valve through a three-way connector, a first hydraulic oil tank oil return port of the service brake valve T1 port of the service brake valve and the service brake valve T2 port is connected with a first hydraulic oil tank on the service brake valve, a second hydraulic oil tank oil return port of the liquid filling valve A1 port of the hydraulic oil tank is connected with a liquid filling valve A2 port of the parking brake valve is connected with a liquid control valve A port of the parking brake valve, a liquid filling valve B port of the liquid control valve B is connected with a liquid control valve B of the parking brake valve B, a liquid filling valve B is connected with a liquid control valve B port of the parking valve B is connected with the liquid tank B port of the parking valve B is connected with the parking valve B port of the parking valve B, the parking brake valve A port of the parking brake valve is connected with a parking brake oil port of the parking brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712812.2A CN107323480B (en) | 2017-08-18 | 2017-08-18 | Full-hydraulic braking system for mine car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712812.2A CN107323480B (en) | 2017-08-18 | 2017-08-18 | Full-hydraulic braking system for mine car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107323480A CN107323480A (en) | 2017-11-07 |
| CN107323480B true CN107323480B (en) | 2023-11-17 |
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ID=60224141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710712812.2A Active CN107323480B (en) | 2017-08-18 | 2017-08-18 | Full-hydraulic braking system for mine car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107323480B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146245B (en) * | 2017-12-29 | 2020-04-21 | 航天重型工程装备有限公司 | Control system for preventing engine from overspeed |
| CN108167246A (en) * | 2018-01-18 | 2018-06-15 | 福建新源重工有限公司 | Frame hydraulic oil circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063765U (en) * | 1992-06-23 | 1994-01-18 | 東洋運搬機株式会社 | Vehicle parking brake release device |
| JP2004217009A (en) * | 2003-01-14 | 2004-08-05 | Kawasaki Heavy Ind Ltd | Negative parking brake canceling device, and brake system |
| CN204641728U (en) * | 2015-04-13 | 2015-09-16 | 徐工集团工程机械股份有限公司 | A kind of mechanical drive articulated truck brake system |
| CN104960513A (en) * | 2015-05-29 | 2015-10-07 | 徐工集团工程机械股份有限公司科技分公司 | Full hydraulic braking and fan driving system |
| 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 |
| CN207191065U (en) * | 2017-08-18 | 2018-04-06 | 临工集团济南重机有限公司 | A kind of mine car full power hydraulic brake system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7976109B2 (en) * | 2003-01-14 | 2011-07-12 | Bwi Company Limited S.A. | Failsafe operation of a hybrid brake system for a vehicle |
-
2017
- 2017-08-18 CN CN201710712812.2A patent/CN107323480B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063765U (en) * | 1992-06-23 | 1994-01-18 | 東洋運搬機株式会社 | Vehicle parking brake release device |
| JP2004217009A (en) * | 2003-01-14 | 2004-08-05 | Kawasaki Heavy Ind Ltd | Negative parking brake canceling device, and brake system |
| 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 |
| CN204641728U (en) * | 2015-04-13 | 2015-09-16 | 徐工集团工程机械股份有限公司 | A kind of mechanical drive articulated truck brake system |
| CN104960513A (en) * | 2015-05-29 | 2015-10-07 | 徐工集团工程机械股份有限公司科技分公司 | Full hydraulic braking and fan driving system |
| CN207191065U (en) * | 2017-08-18 | 2018-04-06 | 临工集团济南重机有限公司 | A kind of mine car full power hydraulic brake system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107323480A (en) | 2017-11-07 |
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Address after: No.2676 Kejia Road, high tech Zone, Jinan City, Shandong Province, 250104 Applicant after: Lingong Heavy Machinery Co.,Ltd. Address before: No.2676 Kejia Road, high tech Zone, Jinan City, Shandong Province, 250104 Applicant before: LINGONG GROUP JINAN HEAVY MACHINERY Co.,Ltd. |
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