CN109278878B - Cab turnover control system and cab - Google Patents
Cab turnover control system and cab Download PDFInfo
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- CN109278878B CN109278878B CN201811428428.0A CN201811428428A CN109278878B CN 109278878 B CN109278878 B CN 109278878B CN 201811428428 A CN201811428428 A CN 201811428428A CN 109278878 B CN109278878 B CN 109278878B
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- oil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/073—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other characterised by special adaptations of vehicle control devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention discloses a cab turnover control system and a cab, wherein the control system comprises a hydraulic control valve, a front protective device, a hydraulic jacking module, an oil supply module and a circuit control module; the hydraulic control valve comprises a passage station and a circuit breaking station, and an ejector rod is arranged on the hydraulic control valve; the front protection device is provided with a cam which is abutted with the ejector rod; the hydraulic jacking module is used for jacking the cab; the oil supply module is used for supplying hydraulic oil to the hydraulic jacking module; the circuit control module is used for controlling the oil supply module to start oil supply or stop oil supply, and comprises a first switch which is in contact connection with the cam. According to the cab turnover control system and the cab, the cab cannot be turned over when the front protection device is not turned over and opened through the cooperation of the hydraulic control valve and the cam, and the cab can be turned over when the front protection device is opened, so that the cab is prevented from interfering and colliding with the front protection device in the turnover process.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a cab turnover control system and a cab.
Background
The truck generally needs to be protected on the front wall of the truck by additionally installing a front protection device. For some flathead trucks, the engine is typically disposed under the cab, often requiring the cab to be tipped up for maintenance and service. And most of medium-sized and heavy trucks in the market at present adopt a hydraulic overturning system, and a common hydraulic overturning system has two modes of manual overturning and electric overturning, and a cab can be quickly overturned when the electric hydraulic overturning mode is adopted.
If the hydraulic pressure upset system is adopted to the type truck that can overturn in driver's cabin, preceding protector is equipped with simultaneously, before the driver's cabin is turned up, if operating personnel directly operates driver's cabin hydraulic pressure upset system and makes the driver's cabin lift with not opening preceding protection, can lead to before the driver's cabin enclose with preceding protector bump, lead to the serious damage of driver's cabin even scrap.
Disclosure of Invention
The invention aims to provide a cab turnover control system and a cab, which are used for solving the problems in the prior art and avoiding interference with front protection in the cab turnover process.
The invention provides a cab turnover control system, which comprises:
the hydraulic control valve comprises a passage station and a circuit breaking station, and an ejector rod is arranged on the hydraulic control valve;
the front protection device is provided with a cam, and the cam is abutted to the ejector rod;
the hydraulic jacking module is used for jacking the cab;
the oil supply module is used for supplying hydraulic oil to the hydraulic jacking module;
and the circuit control module is used for controlling the oil supply module to start oil supply or stop oil supply and comprises a first switch, and the first switch is in contact connection with the cam.
The cab-rollover control system as set forth above, wherein preferably the oil supply module includes a directional valve, a first oil passage and a second oil passage;
the reversing valve comprises an oil supply station and an oil return station;
one end of the first oil way is communicated with the reversing valve, and the other end of the first oil way is communicated with the hydraulic control valve;
the hydraulic jacking module is communicated with the first oil way;
one end of the second oil way is communicated with the reversing valve, and the other end of the second oil way is communicated with the hydraulic jacking module.
The cab turnover control system comprises a hydraulic jacking module, a hydraulic control one-way valve and a one-way throttle valve, wherein the hydraulic jacking module comprises a follow-up oil cylinder, the hydraulic control one-way valve and the one-way throttle valve;
the lower oil cavity sequentially passes through the hydraulic control one-way valve and the one-way throttle valve and then is communicated with the first oil way;
the upper oil chamber is communicated with the second oil path.
The cab-rollover control system as described above, wherein preferably, the fuel supply module further includes a fuel tank, a manual pump assembly and an electric pump assembly;
one end of the manual pump assembly is communicated with the oil tank, and the other end of the manual pump assembly is communicated with the reversing valve;
one end of the electric pump assembly is communicated with the oil tank, and the other end of the electric pump assembly is communicated with the second oil way.
The cab-rollover control system as described above, wherein preferably, the circuit control module further includes a second switch and a relay;
two ends of the relay are respectively connected with the first switch and the second switch;
the electric pump assembly comprises an electric pump and a motor, the electric pump supplies oil to the second oil path under the control of the motor, and the motor is connected with the second switch.
The cab-rollover control system as described above, preferably, further includes a hydraulic locking module, and the hydraulic locking module is communicated with the first oil path.
The cab turnover control system as described above, wherein preferably, the hydraulic locking module includes a hydraulic lock cylinder and a return spring, and the return spring is sleeved on a piston rod of the hydraulic lock cylinder.
The invention also provides a cab, wherein the cab turnover control system provided by the invention is included.
According to the cab turnover control system and the cab, the cab cannot be turned over when the front protection device is not turned over and opened through the cooperation of the hydraulic control valve and the cam, and the cab can be turned over when the front protection device is opened, so that the cab is prevented from interfering and colliding with the front protection device in the turnover process.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a system block diagram of a cab rollover control system according to an embodiment of the present invention.
Description of reference numerals:
10-first oil path 20-second oil path 30-first switch
40-second switch 50-relay 100-front guard
110-cam 200-pilot operated valve 210-channel station
220-circuit-breaking station 230-ejector rod 300-hydraulic jacking module
310-servo oil cylinder 320-hydraulic control one-way valve 330-one-way throttle valve
400-reversing valve 410-oil supply station 420-oil return station
500-manual pump assembly 600-electric pump assembly 610-motor
620-electric pump 700-hydraulic locking module 800-oil tank
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 1, an embodiment of the present invention provides a cab rollover control system, which includes a hydraulic control valve 200, a front guard 100, a hydraulic jacking module 300, an oil supply module, and a circuit control module; the hydraulic control valve 200 comprises a passage station 210 and a breaking station 220, and a push rod 230 is arranged on the hydraulic control valve 200; the front guard 100 is provided with a cam 110, and the cam 110 is abutted with the mandril 230; the hydraulic jacking module 300 is used for jacking the cab; the oil supply module is used for supplying hydraulic oil to the hydraulic jacking module 300; the circuit control module is used for controlling the oil supply module to start oil supply or stop oil supply, and comprises a first switch 30, and the first switch 30 is in contact connection with the cam 110.
When the cab needs to be turned over, if the front protection device 100 is not turned over and opened, one side with a smaller diameter on the cam 110 is in contact with the ejector rod 230, at the moment, the ejector rod 230 cannot be pressed by the cam 110, so that the hydraulic control valve 200 is positioned at the passage station 210, hydraulic oil in the system cannot reach the hydraulic jacking module 300, and the hydraulic oil directly flows back to the oil tank 800 through the hydraulic control valve 200; meanwhile, one end of the cam 110, which is far away from the rotation center of the cam 110, cannot contact the first switch 30, and cannot close the first switch 30, that is, the circuit control module is in an open circuit state, and cannot start the oil supply module to provide hydraulic oil. Therefore, the cab can not be turned over under the premise that the front protection device 100 is not opened, and interference collision with the front protection device 100 during turning over of the cab is avoided.
When the cab needs to be turned over, if the front protection device 100 is turned over and opened, one end of the cam 110, which is far away from the rotation center of the cam 110, presses down the push rod 230, so that the hydraulic control valve 200 is positioned at the equal-circuit-breaking station 220, and hydraulic oil in the system cannot flow back to the oil tank 800 through the hydraulic control valve 200; meanwhile, one end of the cam 110, which is far away from the rotation center of the cam 110, may contact the first switch 30, and the first switch 30 is pushed to be closed by the rotation of the cam 110 itself, so that the circuit control module is turned on, and the oil supply module starts oil supply, and hydraulic oil provided by the oil supply module is input into the hydraulic jacking module 300, thereby implementing the turnover of the cab through the hydraulic jacking module 300. Since the front guard 100 has been flipped open, the cab cannot interfere with the front guard 100 during the flipping process.
Compared with the prior art, the cab turnover control system provided by the embodiment of the invention has the advantages that the cab cannot be turned over when the front protection device 100 is not turned over and opened through the cooperation of the hydraulic control valve 200 and the cam 110, and the cab can be turned over when the front protection device 100 is opened, so that the interference collision between the cab and the front protection device 100 in the turnover process is avoided.
Further, the oil supply module includes a direction change valve 400, a first oil passage 10, and a second oil passage 20; the reversing valve 400 includes an oil supply station 410 and an oil return station 420; one end of the first oil passage 10 is communicated with the reversing valve 400, and the other end of the first oil passage 10 is communicated with the hydraulic control valve 200; the hydraulic jacking module 300 is communicated with the first oil way 10; one end of the second oil path 20 is communicated with the direction switching valve 400, and the other end of the second oil path 20 is communicated with the hydraulic jacking module 300.
When the reversing valve 400 is located at the oil supply station 410 and the front protection device 100 is in an open state, oil can be simultaneously supplied to the hydraulic jacking module 300 through the first oil path 10 and the second oil path 20, so that jacking of the hydraulic jacking module 300 is realized; meanwhile, when the front guard 100 is not opened, the oil in the system may be returned to the oil tank 800 through the first oil passage 10. In addition, when the reversing valve 400 is located at the oil return station 420, the second oil path 20 may supply oil to the hydraulic jacking module 300 to enable the hydraulic jacking module 300 to fall back, and meanwhile, the first oil path 10 passes through the reversing valve 400 and then is communicated to the oil tank 800, so that the hydraulic oil output from the hydraulic jacking module 300 flows back to the oil tank 800.
Further, the hydraulic jacking module 300 comprises a follow-up cylinder 310, a hydraulic control one-way valve 320 and a one-way throttle valve 330, wherein the follow-up cylinder 310 comprises an upper oil chamber and a lower oil chamber; the lower oil cavity is communicated with the first oil way 10 after sequentially passing through a hydraulic control one-way valve 320 and a one-way throttle valve 330; the upper oil chamber communicates with the second oil passage 20. When the first oil passage 10 and the second oil passage 20 simultaneously input high-pressure oil into the slave cylinder 310, the slave cylinder 310 obtains power to lift and turn the cab. When the first oil path 10 is communicated with the oil tank 800 through the reversing valve 400, the first oil path 10 does not provide high-pressure oil to the slave cylinder 310 any more, and the second oil path 20 still provides high-pressure oil to the slave cylinder 310 to open the pilot operated check valve 320, so that the hydraulic oil in the slave cylinder 310 can flow into the first oil path 10 through the pilot operated check valve 320 and the check throttle valve 330 in sequence, and further flows back to the oil tank 800 through the first oil path 10, so that the slave cylinder 310 makes a return motion, thereby realizing the return of the cab.
Further, the oil supply module further comprises an oil tank 800, a manual pump assembly 500 and an electric pump 620 assembly 600; one end of the manual pump assembly 500 is communicated with the oil tank 800, and the other end of the manual pump assembly 500 is communicated with the reversing valve 400; one end of electric pump 620 assembly 600 communicates with oil tank 800, and the other end of electric pump 620 assembly 600 communicates with second oil passage 20. It will be appreciated that the oil tank 800 is used to store hydraulic oil and supply oil to the system via the manual pump assembly 500 and the electric pump 620 assembly 600. Wherein, through setting up manual pump assembly 500 and electric pump 620 assembly 600, can realize adopting the upset of two kinds of modes control driver's cabin.
Specifically, when the front guard is not opened, the circuit control module is in an open circuit state, and the electric pump 620 assembly 600 does not work; at this time, for the manual pump assembly 500, the manual pump assembly 500 is started to pump hydraulic oil into the system, and since the hydraulic control valve 200 is in the passage state, the hydraulic oil flows back to the oil tank 800 through the hydraulic control valve 200 along the first oil path 10, and is not input into the hydraulic jacking module 300, so that the jacking and overturning of the cab cannot be realized. When the front protection is opened, the manual pump assembly 500 and the electric pump 620 assembly 600 can independently control the hydraulic jacking module 300 to work, and then the cab can be turned over.
Further, the circuit control module further includes a second switch 40 and a relay 50; two ends of the relay 50 are respectively connected with the first switch 30 and the second switch 40; the electric pump 620 assembly 600 includes an electric pump 620 and a motor 610, the electric pump 620 supplies oil to the second oil passage 20 by the control of the motor 610, and the motor 610 is connected to the second switch 40.
Specifically, when the front protection device 100 is not turned over and opened, the first switch 30 cannot be toggled by the cam 110 to be closed, at this time, the relay 50 cannot be powered, the second switch 40 is closed, the circuit control module cannot be turned on, that is, the motor 610 cannot be started, and the electric pump 620 is driven to operate. When the front protection device 100 is opened, the first switch 30 is switched on by the cam 110, the relay 50 is powered, and when the second switch 40 is switched on, the motor 610 can be started and the electric pump 620 is driven to supply oil to the second oil path 20.
Further, the cab turnover control system further comprises a hydraulic locking module 700, and the hydraulic locking module 700 is communicated with the first oil path 10. When the current protection is not opened, the electric pump 620 assembly 600 does not work, and the hydraulic oil pumped by the manual electric pump 620 assembly 600 flows back to the oil tank 800 through the first oil path 10 and is not input into the hydraulic locking module 700, so that the hydraulic locking module 700 keeps a locking state on the cab; meanwhile, hydraulic oil cannot be input into the hydraulic jacking module 300, the hydraulic jacking module 300 does not work, and a cab does not turn over. When the front protection device 100 is opened, hydraulic oil can be firstly input into the hydraulic locking module 700 through the first oil path 10, so that the hydraulic locking module 700 releases the locking state of the cab, and the cab can be conveniently turned over subsequently; then, hydraulic oil is input into the hydraulic jacking module 300 along with the first oil path 10, so that the cab can be overturned by the hydraulic jacking module 300.
Specifically, the hydraulic locking module 700 includes a hydraulic locking cylinder and a return spring, and the return spring is sleeved on a piston rod of the hydraulic locking cylinder. When the hydraulic oil is input into the hydraulic lock oil cylinder, the hydraulic lock oil cylinder works to release the locking of the cab. When the cab is controlled to reset, as the first oil way 10 is communicated with the oil tank 800 through the reversing valve 400, the first oil way 10 does not provide high-pressure oil for the hydraulic lock oil cylinder any more, the hydraulic lock oil cylinder drives the piston rod to reset through the action of the spring, and when the cab is reset, the hydraulic locking module 700 locks the cab again.
The embodiment of the invention also provides a cab, wherein the cab also comprises the overturning control system provided by any embodiment of the invention.
According to the cab turnover control system and the cab provided by the embodiment of the invention, the cab cannot be turned over when the front protection device is not turned over and opened through the cooperation of the hydraulic control valve and the cam, and can be turned over when the front protection device is opened, so that the cab is prevented from interfering and colliding with the front protection device in the turnover process.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (4)
1. A cab rollover control system, comprising:
the hydraulic control valve comprises a passage station and a circuit breaking station, and an ejector rod is arranged on the hydraulic control valve;
the front protection device is provided with a cam, and the cam is abutted to the ejector rod;
the hydraulic jacking module is used for jacking the cab;
the oil supply module is used for supplying hydraulic oil to the hydraulic jacking module;
the circuit control module is used for controlling the oil supply module to start oil supply or stop oil supply and comprises a first switch, and the first switch is in contact connection with the cam;
the oil supply module comprises a reversing valve, a first oil way and a second oil way;
the reversing valve comprises an oil supply station and an oil return station;
one end of the first oil way is communicated with the reversing valve, and the other end of the first oil way is communicated with the hydraulic control valve;
the hydraulic jacking module is communicated with the first oil way;
one end of the second oil way is communicated with the reversing valve, and the other end of the second oil way is communicated with the hydraulic jacking module;
the circuit control module further comprises a second switch and a relay;
two ends of the relay are respectively connected with the first switch and the second switch;
the electric pump assembly comprises an electric pump and a motor, the electric pump supplies oil to the second oil path under the control of the motor, and the motor is connected with the second switch;
the hydraulic locking module comprises a hydraulic locking oil cylinder and a return spring, and the return spring is sleeved on a piston rod of the hydraulic locking oil cylinder.
2. The cab rollover control system according to claim 1, wherein the hydraulic jacking module includes a slave cylinder, a hydraulically controlled check valve, and a one-way throttle valve, the slave cylinder including an upper oil chamber and a lower oil chamber;
the lower oil cavity sequentially passes through the hydraulic control one-way valve and the one-way throttle valve and then is communicated with the first oil way;
the upper oil chamber is communicated with the second oil path.
3. The cab rollover control system according to claim 1, wherein the fueling module further includes a fuel tank, a manual pump assembly, and an electric pump assembly;
one end of the manual pump assembly is communicated with the oil tank, and the other end of the manual pump assembly is communicated with the reversing valve;
one end of the electric pump assembly is communicated with the oil tank, and the other end of the electric pump assembly is communicated with the second oil way.
4. The cab rollover control system according to claim 1, further comprising a hydraulic lock module in communication with the first oil passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428428.0A CN109278878B (en) | 2018-11-27 | 2018-11-27 | Cab turnover control system and cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811428428.0A CN109278878B (en) | 2018-11-27 | 2018-11-27 | Cab turnover control system and cab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109278878A CN109278878A (en) | 2019-01-29 |
| CN109278878B true CN109278878B (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811428428.0A Active CN109278878B (en) | 2018-11-27 | 2018-11-27 | Cab turnover control system and cab |
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| Country | Link |
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| CN (1) | CN109278878B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111595593A (en) * | 2020-05-29 | 2020-08-28 | 东风商用车有限公司 | Cab turnover test device and test method thereof |
| CN112124438B (en) * | 2020-09-24 | 2022-03-08 | 一汽解放汽车有限公司 | Electric front wall system control method, electric front wall system and vehicle |
| CN118323288A (en) * | 2024-06-12 | 2024-07-12 | 南京金龙客车制造有限公司 | Turnover system, cab and vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2743047B1 (en) * | 1995-12-27 | 1998-02-20 | Renault Vehicules Ind | DEVICE FOR TILTING A CAB SUPPORTED BY A CHASSIS |
| NL1011648C2 (en) * | 1999-03-23 | 2000-09-27 | Applied Power Inc | Tilting mechanism. |
| CN101100200B (en) * | 2007-08-02 | 2010-05-19 | 王树革 | Entirety type electric and manual hydraulic lifter for overturning driving cab |
| CN201089484Y (en) * | 2007-08-10 | 2008-07-23 | 东风汽车有限公司 | Hydraulic turnover device for cab |
| CN202368690U (en) * | 2011-12-06 | 2012-08-08 | 东风汽车公司 | Cab turnover anti-misoperation mechanism |
| CN205527576U (en) * | 2016-03-16 | 2016-08-31 | 徐州重型机械有限公司 | Cab tilting mechanism and fork truck |
| CN106741225A (en) * | 2017-01-11 | 2017-05-31 | 江苏理工学院 | A kind of intelligent cab tilting system |
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2018
- 2018-11-27 CN CN201811428428.0A patent/CN109278878B/en active Active
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| CN109278878A (en) | 2019-01-29 |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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