CN107380150B - Pneumatic control wet type explosion-proof pressure-loss braking system - Google Patents
Pneumatic control wet type explosion-proof pressure-loss braking system Download PDFInfo
- Publication number
- CN107380150B CN107380150B CN201710665408.4A CN201710665408A CN107380150B CN 107380150 B CN107380150 B CN 107380150B CN 201710665408 A CN201710665408 A CN 201710665408A CN 107380150 B CN107380150 B CN 107380150B
- Authority
- CN
- China
- Prior art keywords
- oil
- air
- valve
- brake
- pressure
- Prior art date
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 99
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000006837 decompression Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
Images
Classifications
-
- 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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/24—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 fluid assistance, drive, or release the fluid being gaseous
-
- 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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/04—Driver's valves
- B60T15/041—Driver's valves controlling auxiliary pressure brakes, e.g. parking or emergency brakes
-
- 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
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a pneumatic control wet type explosion-proof pressure-loss braking system, which comprises a hand braking valve, a foot braking valve, a pressure-loss pneumatic control valve, a gas-liquid supercharger, an oil storage barrel and a wet type brake, wherein the hand braking valve is connected with the foot braking valve; the hand brake valve, the pressure-loss pneumatic control valve and the gas-liquid supercharger are sequentially communicated through air pipes, and the air outlet of the hand brake valve is also communicated with the oil storage barrel through the air pipes so as to complete the prepressing function; the foot brake valve is communicated with the gas-liquid booster, the foot brake valve and the pressure-losing pneumatic control valve through air pipes respectively, the gas-liquid booster is communicated with the wet brake through oil pipes, the oil storage barrel is communicated with the gas-liquid booster and the wet brake through oil pipes respectively, and oil pressure is released to the wet brake to brake through supplying oil to the wet brake to release braking. The pneumatic control wet type explosion-proof pressure-loss braking system realizes pressure-loss braking through pneumatic control, has small braking inertia, is safer and more reliable to use, can release the braking through the manual oil pump under the condition that the pneumatic braking system is out of action, and is convenient for the consignment maintenance of vehicles.
Description
Technical Field
The invention relates to a braking system, in particular to a pneumatic control wet type explosion-proof pressure-loss braking system for mine transportation vehicles and engineering machinery.
Background
At present, a transport vehicle and machinery for walking operation used in an explosive gas environment under mines and coal mines are controlled by hydraulic pressure, and a pressure-loss brake control system of service brake, emergency brake, parking brake and gradient parking brake can cause large brake inertia and no road feel, and is time-consuming and labor-consuming for old vehicle reconstruction and inconvenient for transportation maintenance of vehicles.
Disclosure of Invention
Therefore, the invention mainly aims to provide the pneumatic control wet type explosion-proof pressure-loss braking system which is small in braking inertia and convenient to consign and maintain.
In order to achieve the above purpose, the invention provides a pneumatic control wet type explosion-proof pressure-loss braking system, which comprises a hand braking valve, a foot braking valve, a pressure-loss pneumatic control valve, a gas-liquid booster, an oil storage barrel and a wet type brake; the hand brake valve, the pressure-loss pneumatic control valve and the gas-liquid supercharger are sequentially communicated through air pipes, and the hand brake valve is also communicated with the oil storage barrel through the air pipes; the foot brake valve is communicated with the gas-liquid booster, the foot brake valve and the pressure-losing pneumatic control valve through air pipes respectively, the gas-liquid booster is communicated with the wet brake through oil pipes, the oil storage barrel is communicated with the gas-liquid booster and the wet brake through oil pipes respectively, and oil pressure is released to the wet brake to brake through supplying oil to the wet brake to release braking.
Preferably, the left side and the right side of the gas-liquid supercharger are respectively provided with a cylinder and an oil cylinder, a cylinder piston is longitudinally arranged in the cylinder, an oil cylinder plunger is transversely arranged in the oil cylinder, two air vents are arranged on the cylinder, and two oil ports are arranged on the oil cylinder.
Preferably, the oil storage barrel is provided with three oil ports, wherein a stop valve is arranged on an oil pipe between the third oil port of the oil storage barrel and the first oil port of the gas-liquid supercharger.
Preferably, the foot brake valve is provided with two air inlets and two air outlets, wherein the two air inlets comprise a first air inlet and a second air inlet, the two air outlets comprise a first air outlet and a second air outlet, the first air inlet of the foot brake valve is communicated with the pressure-loss air control valve through the first air outlet, and the second air inlet of the foot brake valve is communicated with the second air outlet of the gas-liquid supercharger through the second air outlet.
Preferably, the hand brake valve is provided with two air ports, wherein the first air port of the hand brake valve is respectively communicated with the pressure-loss air control valve and the oil storage barrel in two ways through the second air port of the hand brake valve.
Preferably, a manual pump is arranged on an oil pipe between the first oil port of the oil storage barrel and the wet brake, an oil inlet of the manual pump is communicated with the first oil port of the oil storage barrel, and an oil outlet of the manual pump is communicated with an oil inlet of the wet brake.
Preferably, a check valve is arranged on the oil pipe between the second oil port of the oil storage barrel and the second oil port of the gas-liquid supercharger.
The pneumatic control wet type explosion-proof pressure-loss braking system realizes pressure-loss braking through pneumatic control, has small braking inertia, is safer and more reliable to use, can release the braking through the manual oil pump under the condition that the pneumatic braking system is out of action, and is convenient for the consignment maintenance of vehicles.
Drawings
Fig. 1 is a schematic diagram of a pneumatic wet explosion-proof pressure-loss brake system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1, the pneumatic control wet type explosion-proof pressure-loss braking system of the present invention includes a hand brake valve 1 (i.e., parking brake), a foot brake valve 2 (i.e., running brake), a pressure-loss pneumatic control valve 3, a gas-liquid booster 4, an oil storage tank 5, and a wet brake 9. The hand brake valve 1, the pressure-loss pneumatic control valve 3 and the air-liquid booster 4 are sequentially communicated through air pipes, the hand brake valve 1 is also communicated with the oil storage barrel 5 through the air pipes and used for enabling the oil storage barrel 5 to generate prepressing, and the foot brake valve 2 is respectively communicated with the air-liquid booster 4, the foot brake valve 2 and the pressure-loss pneumatic control valve 3 through the air pipes. The gas-liquid booster 4 and the wet brake 9 are communicated through oil pipes, the oil storage tank 5 is respectively communicated with the gas-liquid booster 4 and the wet brake 9 through oil pipes, oil in an oil cylinder 43 of the gas-liquid booster 4 is led to enter and exit the wet brake 9 by controlling the reciprocating motion of an air cylinder piston 42 of the gas-liquid booster 4, oil is supplied to the wet brake 9 to release braking, and oil pressure is released to the wet brake 9 to brake.
The left and right sides of the gas-liquid supercharger 4 are respectively provided with a cylinder 41 and an oil cylinder 43, a cylinder piston 42 is longitudinally arranged in the cylinder 41, an oil cylinder plunger 44 is transversely arranged in the oil cylinder 43, two air vents are arranged on the cylinder 41, and two oil ports are arranged on the oil cylinder 43.
The oil storage barrel 5 is provided with three oil ports, wherein a stop valve 7 is arranged on an oil pipe between a third oil port T5 and a first oil port C of the gas-liquid supercharger 4.
The hand brake valve 1 is provided with two air ports, wherein the first air port P1 of the hand brake valve 1 is respectively communicated with the pressure-losing pneumatic control valve 3 and the oil storage barrel 5 through the second air port S1 in two ways. When the braking is to be released before the vehicle runs, the hand brake valve 1 is arranged in a vehicle running space, namely, a first air port P1 of the hand brake valve 1 is communicated with a second air port S1, compressed air passes through the first air port P1 and the second air port S1, and then enters the cylinder 41 from a path to the first air port A of the gas-liquid supercharger 4 through the decompression pneumatic control valve 3, so that the cylinder piston 42 moves rightwards; the other path enters the oil storage barrel 5 through the air inlet of the oil storage barrel 5, so that the oil storage barrel 5 is preloaded. The stop valve 7 is connected, hydraulic oil enters the oil cylinder 43 through the third oil port T5 of the oil storage barrel 5 and the first oil port C of the gas-liquid booster 4, the oil cylinder 43 is boosted due to rightward movement of the piston 42, the hydraulic oil passes through the second oil port D of the gas-liquid booster 4 to the wet brake 9, and oil pressure release brake is provided for the wet brake 9.
When parking or hill-hold needs to be braked, the hand brake valve 1 is arranged at a parking space, the first air port P1 and the second air port S1 of the hand brake valve 1 are closed, compressed air in the air cylinder 41 is discharged to the atmosphere through the first air port A of the air-liquid booster 4 and the decompression pneumatic control valve 3, the air pressure in the air cylinder 41 is reduced, the air cylinder piston 42 is moved leftwards, the oil cylinder 43 is decompressed, hydraulic oil enters the oil cylinder 43 from the wet brake 9 through the second oil port D of the air-liquid booster 4, and then enters the oil storage barrel 5 through the first oil port C of the air-liquid booster 4 and the third oil port T5 of the oil storage barrel, so that the wet brake 9 releases oil pressure to brake.
The foot brake valve 2 is provided with two air inlets and two air outlets, wherein the two air inlets comprise a first air inlet T2 and a second air inlet P2, the two air outlets comprise a first air outlet Q2 and a second air outlet S2, the first air inlet T2 is communicated with the pressure loss air control valve 3 through the first air outlet Q2, and the second air inlet P2 is communicated with a second air inlet B of the gas-liquid supercharger 4 through the second air outlet S2. When braking or emergency braking is needed during driving, the foot brake valve 2 is stepped down, at the moment, compressed air is conveyed from the second air inlet P2 of the foot brake valve 2 to the second air outlet B of the gas-liquid booster 4 through the second air outlet S2, the cylinder piston 42 moves leftwards, the oil cylinder 43 loses pressure, hydraulic oil enters the oil cylinder 43 from the wet brake 9 through the second oil port D of the gas-liquid booster 4, and then enters the oil storage barrel 5 through the first oil port C of the gas-liquid booster 4 and the third oil port T5 of the oil storage barrel, so that the wet brake 9 releases oil pressure to brake; the other path of compressed air in the air cylinder 41 is discharged to the atmosphere through the pressure-losing pneumatic control valve 3 from the first air inlet T2 of the foot brake valve 2 to the port A of the gas-liquid booster through the first air outlet Q2, and then is matched with the air cylinder piston 42 to continuously move leftwards, so that the oil cylinder 43 continuously loses pressure, and the wet brake 9 continuously releases oil pressure to accelerate braking. The pressure-losing steam control valve 3 is mainly used for losing the pressure of the gas-liquid booster 4, accelerating the movement speed of the cylinder piston 42 of the gas-liquid booster 4 and further improving the braking speed.
In the other 2 oil ports of the oil storage barrel 5, the manual pump 8 is arranged on an oil pipe between the first oil port R5 of the oil storage barrel 5 and the wet brake 9, an oil inlet of the manual pump 8 is communicated with the first oil port R5 of the oil storage barrel 5, an oil outlet of the manual pump 8 is communicated with an oil inlet of the wet brake 9, and under the condition that an electric system is out of action, hydraulic oil in the oil storage barrel 5 enters the wet brake 9 through the manual pump 8, so that oil pressure is provided for the wet brake 9 to release braking, and the vehicle is convenient to consign and maintain. A one-way valve 6 is arranged on the oil pipe between the second oil port S5 of the oil storage barrel 5 and the second oil port D of the gas-liquid supercharger 4. The one-way valve 6 is used for preventing hydraulic oil from returning to the oil storage tank 5 when the manual pump 8 releases the brake of the wet brake 9, so that the hydraulic oil completely enters the wet brake 9, and the release of the brake is quickened; on the other hand, when the hand brake valve 1 is used to release the brake of the wet brake 9, the cylinder 43 is prefilled to prevent the cylinder plunger 44 in the gas-liquid booster 4 from moving too fast and forming a vacuum at the tip thereof.
Therefore, the pneumatic control wet type explosion-proof pressure-losing braking system realizes pressure-losing braking through pneumatic control, has small braking inertia, is safer and more reliable to use, can release the braking through a manual oil pump under the condition that the pneumatic braking system is out of action, and is convenient for the consignment and maintenance of vehicles.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (5)
1. A pneumatic control wet type explosion-proof pressure-loss braking system is characterized in that,
the hydraulic pneumatic braking system comprises a hand braking valve, a foot braking valve, a pressure-losing pneumatic control valve, a gas-liquid booster, an oil storage barrel and a wet brake; the hand brake valve, the pressure-loss pneumatic control valve and the gas-liquid supercharger are sequentially communicated through air pipes, and the hand brake valve is also communicated with the oil storage barrel through the air pipes; the foot brake valve is communicated with the gas-liquid booster and the foot brake valve and the pressure-losing pneumatic control valve through air pipes respectively, the gas-liquid booster is communicated with the wet brake through oil pipes, the oil storage barrel is communicated with the gas-liquid booster and the wet brake through oil pipes respectively, and oil pressure is released to brake the wet brake by supplying oil to the wet brake so as to release braking;
the left side and the right side of the gas-liquid supercharger are respectively provided with a cylinder and an oil cylinder, a cylinder piston is longitudinally arranged in the cylinder, an oil cylinder plunger is transversely arranged in the oil cylinder, two air vents are arranged on the cylinder, and two oil ports are arranged on the oil cylinder; the hand brake valve is provided with two air vents, wherein a first air vent of the hand brake valve is respectively communicated with the pressure-loss air control valve and the oil storage barrel in two ways through a second air vent of the hand brake valve.
2. The pneumatic wet explosion-proof pressure-loss braking system according to claim 1, wherein,
the oil storage barrel is provided with three oil ports, namely a first oil port, a second oil port and a third oil port, wherein a stop valve is arranged on an oil pipe between the third oil port of the oil storage barrel and the first oil port of the gas-liquid supercharger.
3. The pneumatic wet explosion-proof pressure-loss braking system according to claim 1, wherein,
the foot brake valve is provided with two air inlets and two air outlets, wherein the two air inlets comprise a first air inlet and a second air inlet, the two air outlets comprise a first air outlet and a second air outlet, the first air inlet of the foot brake valve is communicated with the pressure-loss air control valve through the first air outlet, and the second air inlet of the foot brake valve is communicated with the second air inlet of the air-liquid supercharger through the second air outlet.
4. A pneumatic wet antiexplosive pressure loss braking system according to claim 2, wherein,
the oil pipe between the first oil port of the oil storage barrel and the wet brake is provided with a manual pump, an oil inlet of the manual pump is communicated with the first oil port of the oil storage barrel, and an oil outlet of the manual pump is communicated with the oil inlet of the wet brake.
5. A pneumatic wet antiexplosive pressure loss braking system according to claim 2, wherein,
and a one-way valve is arranged on the oil pipe between the second oil port of the oil storage barrel and the second oil port of the gas-liquid supercharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665408.4A CN107380150B (en) | 2017-08-07 | 2017-08-07 | Pneumatic control wet type explosion-proof pressure-loss braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665408.4A CN107380150B (en) | 2017-08-07 | 2017-08-07 | Pneumatic control wet type explosion-proof pressure-loss braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107380150A CN107380150A (en) | 2017-11-24 |
| CN107380150B true CN107380150B (en) | 2023-05-30 |
Family
ID=60344748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710665408.4A Active CN107380150B (en) | 2017-08-07 | 2017-08-07 | Pneumatic control wet type explosion-proof pressure-loss braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107380150B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1134031A (en) * | 1964-11-27 | 1968-11-20 | Bosch Gmbh Robert | Improvements in or relating to braking systems for vehicles |
| CN205149841U (en) * | 2015-11-30 | 2016-04-13 | 哈尔滨第一机械集团有限公司 | Two sections tracked vehicle caliper disc type are capable of integrative braking system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10233018A1 (en) * | 2002-07-20 | 2004-01-29 | Iveco Magirus Ag | Method and braking device for parking braking of vehicles, in particular trucks |
| US20090001805A1 (en) * | 2007-06-26 | 2009-01-01 | Troy Eugene Schick | Hydraulic by-wire brake system |
| US8276993B2 (en) * | 2008-03-19 | 2012-10-02 | Bendix Commercial Vehicle Systems Llc | Park system with high/low trip pressure for added failure protection with work brake application |
| CN103754128B (en) * | 2013-11-28 | 2016-06-15 | 包头市北工机械有限公司 | A kind of traction transport car |
| DE102014115206B3 (en) * | 2014-10-20 | 2016-02-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Tilting tank valve for a pressure control module of a vehicle and method for operating a tipping armature valve |
| CN104527628B (en) * | 2014-12-30 | 2017-03-22 | 郑州宇通重工有限公司 | Micro-motion function and hydraulic brake control system of wheeled dozer |
| CN104999924A (en) * | 2015-08-07 | 2015-10-28 | 包头市北工机械有限公司 | Pure electric anti-explosion transport vehicle |
| US20170197599A1 (en) * | 2015-12-18 | 2017-07-13 | Plamen Vladimirov Trifonov | Decentralized air braking system with hydraulic or electrical actuation |
| CN106080564B (en) * | 2016-08-18 | 2019-02-19 | 陕西同力重工股份有限公司 | The wet brake system of engineering dump truck double-loop air braking |
| CN207157192U (en) * | 2017-08-07 | 2018-03-30 | 包头市北工机械有限公司 | A kind of explosion-proof decompression brakes of gas control wet type |
-
2017
- 2017-08-07 CN CN201710665408.4A patent/CN107380150B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1134031A (en) * | 1964-11-27 | 1968-11-20 | Bosch Gmbh Robert | Improvements in or relating to braking systems for vehicles |
| CN205149841U (en) * | 2015-11-30 | 2016-04-13 | 哈尔滨第一机械集团有限公司 | Two sections tracked vehicle caliper disc type are capable of integrative braking system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107380150A (en) | 2017-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201923203U (en) | Hydraulic steering and brake circuit for two-bridge engineering machinery | |
| US9315182B2 (en) | Braking system | |
| CN102371983B (en) | Hydraulic brake system | |
| CN202557520U (en) | Two-way brake control system of beam transportation vehicle | |
| CN201300835Y (en) | Pneumatic control device of arrester | |
| CN204641729U (en) | An a kind of mining engineering truck hydraulic brake system | |
| CN203623654U (en) | Double insurance brake system for small-sized loader | |
| CN110588617B (en) | Control system for realizing driving and emergency parking braking functions of front wheels and rear wheels of explosion-proof vehicle | |
| CN103879394A (en) | Stopping brake system of trailer used under coal mine shaft | |
| CN104169144A (en) | Combined service and parking brake cylinder with diaphragm which can be interlocked with the parking brake piston | |
| CN107650895A (en) | A kind of forward and reverse logic double loop braking control system | |
| CN112026724A (en) | Jointly controllable loader brake system | |
| FR2979089B1 (en) | ELECTRO-HYDRAULIC DYNAMIC BRAKE SYSTEM AND CONTROL METHOD | |
| CN107380150B (en) | Pneumatic control wet type explosion-proof pressure-loss braking system | |
| CN101863270A (en) | Hydraulic brake device of dumper for mining | |
| CN204736841U (en) | Parking braking system | |
| CN103373335A (en) | Initial flow increasing module for reducing delay of brake response | |
| CN106476775B (en) | Locomotive air brake system and locomotive | |
| CN110239502B (en) | Braking system of engineering vehicle | |
| CN108394396B (en) | Loader service braking system | |
| CN207157192U (en) | A kind of explosion-proof decompression brakes of gas control wet type | |
| CN105151027A (en) | Front-and-back pneumatic traveling brake system for agricultural tractor | |
| CN103407442A (en) | Emergency brake control device for electric transmission mining dump truck | |
| CN203739872U (en) | Integrated braking system of fork truck | |
| CN105439045B (en) | Hydraulic control system for double brake structures of stacker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240204 Address after: 014060 No.1 Beizhong Road, Rare Earth Development Zone, Baotou City, Inner Mongolia Autonomous Region (within the premises of Inner Mongolia Beigong Heavy Electromechanical Equipment Manufacturing Co., Ltd.) Patentee after: Inner Mongolia Beigong Automobile Co.,Ltd. Country or region after: China Address before: 014030 Inner Mongolia Autonomous Region Baotou Beigong Machinery Co.,Ltd. Patentee before: BAOTOU BEIGONG MACHINERY CO.,LTD. Country or region before: China |
|
| TR01 | Transfer of patent right |