CN107131061B - Downhill automatic exhaust brake device for vehicle - Google Patents
Downhill automatic exhaust brake device for vehicle Download PDFInfo
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- CN107131061B CN107131061B CN201710528966.6A CN201710528966A CN107131061B CN 107131061 B CN107131061 B CN 107131061B CN 201710528966 A CN201710528966 A CN 201710528966A CN 107131061 B CN107131061 B CN 107131061B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims description 8
- 230000008033 biological extinction Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/08—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the pneumatic type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0242—Variable control of the exhaust valves only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
- F02D9/06—Exhaust brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
A downhill automatic exhaust brake device of a vehicle comprises a manual reversing valve, a gear shifting cylinder, a gear shifting operation valve, a butterfly valve cylinder, an exhaust butterfly valve, an air bag, a first pneumatic control valve, an electromagnetic reversing valve, a second pneumatic control valve, a water pipe assembly, a liquid level switch and a power supply, wherein an execution port A of the electromagnetic reversing valve is respectively communicated with a pneumatic control port K of the first pneumatic control valve, a pneumatic control port K of the second pneumatic control valve and a rodless cavity of the butterfly valve cylinder, the liquid level switch is connected between the electromagnetic reversing valve and the power supply in series, the execution port A of the first pneumatic control valve is communicated with an air inlet P port of the manual reversing valve, an execution port A and an execution port B of the manual reversing valve are respectively communicated with a rodless cavity and a rod cavity of the gear shifting cylinder, and a first piston rod of the gear shifting cylinder is fixedly connected with a valve rod of the gear shifting operation valve; and an execution port A of the second pneumatic control valve is communicated with a rodless cavity of the gear shifting cylinder. The invention can automatically perform exhaust braking when the vehicle descends a heavy slope and can automatically engage a high-speed gear when the vehicle performs exhaust braking.
Description
Technical Field
The invention relates to a vehicle, in particular to an automatic exhaust braking device for a vehicle when going downhill.
Background
When the vehicle runs on a heavy slope or a downhill, the vehicle needs to be braked frequently, so that the temperature of the brake is increased, the braking efficiency is reduced, and the abrasion consumption of the brake is increased. The exhaust brake function is necessary supplement to the existing vehicles, the exhaust brake is generally started by a manual switch, and when the vehicle runs on a heavy slope or a downhill, a transmission selects a high-speed gear, so that the fault that the engine is damaged due to overhigh rotating speed of the engine during the exhaust brake can be prevented. When the exhaust brake is used, the neutral position can not be engaged, otherwise, the exhaust brake is invalid, and a driving accident can also occur. In addition, the vehicle is generally turned off when exhaust braking is performed. Chinese patent document CN106089453A (application No. 201610611056X) discloses an exhaust brake extinction system for a vehicle, which can realize that the vehicle cannot perform exhaust brake when in neutral gear to improve the safety performance of the vehicle, and can also realize that the vehicle can automatically extinguish when in exhaust brake, but the exhaust brake of the exhaust brake extinction system for the vehicle still needs to be performed by manually operating an exhaust butterfly valve switch, i.e. the exhaust brake cannot be performed automatically, and the exhaust brake extinction system for the vehicle can only realize that the exhaust brake cannot be performed when in neutral gear, and at this time, the vehicle still needs to be firstly put into a high-speed gear, and then the exhaust brake can be performed by manually operating the exhaust butterfly valve switch, so the operation is very troublesome.
Disclosure of Invention
The invention aims to provide a downhill automatic exhaust brake device of a vehicle, which can automatically perform exhaust brake when the vehicle descends a heavy slope and can automatically engage a high-speed gear when the vehicle performs exhaust brake.
In order to achieve the purpose, the technical scheme of the invention is as follows: a downhill automatic exhaust braking device of a vehicle comprises a manual reversing valve, a gear shifting cylinder, a gear shifting operation valve, a butterfly valve cylinder, an exhaust butterfly valve and an air bag, and further comprises a first pneumatic control valve, an electromagnetic reversing valve, a second pneumatic control valve, a water pipe assembly, a liquid level switch and a power supply; the water pipe assembly comprises a transverse pipe and a longitudinal pipe, the longitudinal pipe is positioned at one end of the transverse pipe and fixedly connected to the top wall of the transverse pipe, and the inner cavity of the transverse pipe is communicated with the inner cavity of the longitudinal pipe; an air inlet P port of the electromagnetic directional valve is communicated with the air bag, an execution port A port of the electromagnetic directional valve is respectively communicated with an air control port K port of the first air control valve, an air control port K port of the second air control valve and a rodless cavity of the butterfly valve cylinder, an air outlet T port of the electromagnetic directional valve is communicated with the atmosphere, and a wiring terminal K of the electromagnetic directional valve is electrically connected with a power supply; the liquid level switch is arranged on a longitudinal pipe of the water pipe assembly and is connected in series in a connecting circuit between the electromagnetic directional valve and the power supply, and a detection element of the liquid level switch is inserted into the longitudinal pipe; when the water level at the liquid level switch is higher than a set value, the liquid level switch is switched on, and a terminal K of the electromagnetic directional valve is electrified; the second cylinder body of the butterfly valve cylinder is hinged to a frame of the vehicle, and a second piston rod of the butterfly valve cylinder is fixedly connected with a handle of the exhaust butterfly valve; an air inlet port P of the first pneumatic control valve is communicated with the air bag, and an execution port A of the first pneumatic control valve is communicated with an air inlet port P of the manual reversing valve; an execution port A and an execution port B of the manual reversing valve are respectively communicated with a rodless cavity and a rod cavity of the gear shifting cylinder, and a gas outlet T of the manual reversing valve is communicated with the atmosphere; the first cylinder body of the gear shifting cylinder is hinged to a frame of a vehicle, a first piston rod of the gear shifting cylinder is fixedly connected with a valve rod of a gear shifting operation valve, an air inlet P port of the second pneumatic control valve is communicated with an air bag, and an execution port A port of the second pneumatic control valve is communicated with a rodless cavity of the gear shifting cylinder.
The device also comprises a third pneumatic control valve and a flameout cylinder; the port P of the air inlet of the third pneumatic control valve is communicated with the air bag, the port A of the execution port of the third pneumatic control valve is communicated with the rod cavity of the flameout cylinder, and the port K of the control port of the third pneumatic control valve is communicated with the port A of the execution port of the electromagnetic directional valve; and a third piston rod of the flameout cylinder is fixedly connected with a flameout switch of the diesel engine, and a third cylinder body of the flameout cylinder is hinged on a frame of the vehicle.
The invention has the advantages that: (1) the invention also comprises an electromagnetic directional valve, a water pipe component, a liquid level switch and a power supply; an air inlet P port of the electromagnetic directional valve is communicated with the air bag, an execution port A port of the electromagnetic directional valve is communicated with a rodless cavity of the butterfly valve cylinder, and a wiring terminal K of the electromagnetic directional valve is electrically connected with a power supply; the liquid level switch is arranged on the water pipe assembly and is connected in series in a connecting circuit between the electromagnetic reversing valve and the power supply, and when the water level at the liquid level switch is higher than a set value, the liquid level switch is switched on; therefore, when the vehicle runs on a heavy slope or downhill, the water level at the longitudinal pipe rises, when the water level at the liquid level switch in the longitudinal pipe rises to a set value, the liquid level switch is switched on, the terminal K of the electromagnetic directional valve is electrified, the port P of the air inlet of the electromagnetic directional valve is communicated with the port A of the execution port, the pressure gas in the air bag reaches the rodless cavity of the butterfly valve cylinder through the electromagnetic directional valve, the second piston rod of the butterfly valve cylinder drives the handle of the exhaust butterfly valve to rotate, so that the exhaust butterfly valve is in a closed state, namely, exhaust braking is automatically performed when the vehicle runs on the heavy slope. (2) The invention also comprises an electromagnetic directional valve, a water pipe component, a liquid level switch, a power supply, a first air control valve and a second air control valve; an air inlet P port of the electromagnetic directional valve is communicated with an air bag, an execution port A port of the electromagnetic directional valve is respectively communicated with an air control port K port of a first air control valve, an air control port K port of a second air control valve and a rodless cavity of a butterfly valve cylinder, the air inlet P port of the first air control valve is communicated with the air bag, and the execution port A port of the first air control valve is communicated with an air inlet P port of a manual directional valve; an execution port A and an execution port B of the manual reversing valve are respectively communicated with a rodless cavity and a rod cavity of the gear shifting cylinder, a first piston rod of the gear shifting cylinder is fixedly connected with a valve rod of the gear shifting operation valve, an air inlet port P of the second pneumatic control valve is communicated with the air bag, and an execution port A of the second pneumatic control valve is communicated with the rodless cavity of the gear shifting cylinder. Therefore, when the vehicle performs exhaust braking, the pressure gas in the gas bag simultaneously reaches the gas control port K of the first gas control valve and the gas control port K of the second gas control valve through the electromagnetic directional valve, so that the gas inlet P port of the first gas control valve is not communicated with the execution port A, and the gas inlet P port of the second gas control valve is communicated with the execution port A, so that the pressure gas in the gas bag cannot reach the manual directional valve through the first gas control valve and then reach the gear shifting cylinder, but the pressure gas in the gas bag can reach the rodless cavity of the gear shifting cylinder through the second gas control valve, and the vehicle can be automatically hung on the high-speed gear 3 during exhaust braking.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic view of the water tube assembly of the present invention mounted to the frame of a vehicle;
FIG. 3 is a schematic view of the water tube assembly of the present invention on a horizontal road;
fig. 4 is a schematic view of the water pipe assembly of the present invention when driving down a steep or downhill slope.
The reference numbers in the above figures are as follows: the gear shifting device comprises a manual reversing valve 1, a gear shifting cylinder 2, a first piston rod 2-1, a first cylinder body 2-2, a gear shifting operation valve 3, a first pneumatic control valve 4, an electromagnetic reversing valve 5, a second pneumatic control valve 6, a butterfly valve cylinder 7, a second piston rod 7-1, a second cylinder body 7-2, an exhaust butterfly valve 8, an air bag 9, a water pipe assembly 10, a transverse pipe 10-1, a longitudinal pipe 10-2, a liquid level switch 11, a switch detection pipe 11-1, a switch floating ball 11-2, a power supply 12, a third pneumatic control valve 13, a flameout cylinder 14, a third piston rod 14-1 and a third cylinder body 14-2.
Detailed Description
The invention is further described with reference to the following examples given in conjunction with the accompanying drawings:
as shown in fig. 1, the downhill automatic exhaust braking device for the vehicle comprises a manual reversing valve 1, a gear shifting cylinder 2, a gear shifting operation valve 3, a butterfly valve cylinder 7, an exhaust butterfly valve 8 and an air bag 9, and further comprises a first pneumatic control valve 4, an electromagnetic reversing valve 5, a second pneumatic control valve 6, a water pipe assembly 10, a liquid level switch 11 and a power supply 12; the water pipe assembly 10 comprises a transverse pipe 10-1 and a longitudinal pipe 10-2, the longitudinal pipe 10-2 is positioned at one end of the transverse pipe 10-1, the longitudinal pipe 10-2 is fixedly connected to the top wall of the transverse pipe 10-1, and the inner cavity of the transverse pipe 10-1 is communicated with the inner cavity of the longitudinal pipe 10-2; an air inlet P port of the electromagnetic directional valve 5 is communicated with an air bag 9, an execution port A port of the electromagnetic directional valve 5 is respectively communicated with an air control port K port of the first air control valve 4, an air control port K port of the second air control valve 6 and a rodless cavity of the butterfly valve cylinder 7, an air outlet T port of the electromagnetic directional valve 5 is communicated with the atmosphere, and a wiring terminal K of the electromagnetic directional valve 5 is electrically connected with a power supply 12; the liquid level switch 11 is arranged on a longitudinal pipe 10-2 of the water pipe assembly 10 and is connected in series in a connecting circuit between the electromagnetic directional valve 5 and the power supply 12, and a detection element of the liquid level switch 11 is inserted into the longitudinal pipe 10-2; the detection element comprises a switch detection tube 11-1 and a switch floating ball 11-2 which is sleeved on the switch detection tube 11-1 and can move on the switch detection tube 11-1. When the water level at the liquid level switch 11 is higher than a set value, the set value of the water level at the liquid level switch 11 is the water level value at the longitudinal pipe 10-2 when the vehicle runs on an uphill slope of 4 degrees through tests. The liquid level switch 11 is switched on, and a terminal K of the electromagnetic directional valve 5 is electrified; when the water level of a switch floating ball 11-2 of a liquid level switch 11 in the longitudinal pipe 10-2 is higher than a set value, the liquid level switch 11 is in a switch-on state; when the water level at the switch floating ball 11-2 of the liquid level switch 11 in the longitudinal pipe 10-2 is lower than a set value, the liquid level switch 11 is in an off state. Under normal conditions, the electromagnetic directional valve 5 is in a power-off state and is in a normally closed state, that is, the port P of the air inlet of the electromagnetic directional valve 5 is not communicated with the port a of the execution port, and when the terminal K of the electromagnetic directional valve 5 is powered on, the port P of the air inlet of the electromagnetic directional valve 5 is communicated with the port a of the execution port. The second cylinder body 7-2 of the butterfly valve cylinder 7 is hinged to a frame of a vehicle, and a second piston rod 7-1 of the butterfly valve cylinder 7 is fixedly connected with a handle 8-1 of an exhaust butterfly valve 8; when the rodless cavity of the butterfly valve cylinder 7 enters pressure gas, the second piston rod 7-1 of the butterfly valve cylinder 7 pushes the handle 8-1 of the exhaust butterfly valve 8 to rotate, so that the exhaust butterfly valve 8 is in a closed state, and the vehicle is in an exhaust braking state at the moment. An air inlet port P of the first pneumatic control valve 4 is communicated with an air bag 9, and an execution port A of the first pneumatic control valve 4 is communicated with an air inlet port P of the manual reversing valve 1; an execution port A and an execution port B of the manual reversing valve 1 are respectively communicated with a rodless cavity and a rod cavity of the gear shifting cylinder 2, and a gas outlet T port of the manual reversing valve 1 is communicated with the atmosphere; under normal conditions, the first pneumatic control valve 4 is in a normally open state, that is, the port P of the air inlet of the first pneumatic control valve 4 is communicated with the port a of the execution port, and when the port K of the first pneumatic control valve 4 enters pressure gas, the port P of the air inlet of the first pneumatic control valve 4 is not communicated with the port a of the execution port. When no rod cavity and rod cavity of the gear shifting cylinder 2 do not enter pressure gas, the gear of the vehicle is hung on the middle speed gear 2, and when the rod cavity of the gear shifting cylinder 2 enters pressure gas, the gear of the vehicle is hung on the low speed gear 1. And an air inlet port P of the second pneumatic control valve 6 is communicated with an air bag 9, and an execution port A of the second pneumatic control valve 6 is communicated with a rodless cavity of the gear shifting cylinder 2. Under normal conditions, the second pneumatic control valve 6 is in a normally closed state, namely the air inlet port P of the first pneumatic control valve 4 is not communicated with the execution port A, and when pressure gas enters the control port K of the second pneumatic control valve 6, the air inlet port P of the second pneumatic control valve 6 is communicated with the execution port A.
The pneumatic control device also comprises a third pneumatic control valve 13 and a flameout cylinder 14; an air inlet port P of the third pneumatic control valve 13 is communicated with the air bag 9, an execution port A of the third pneumatic control valve 13 is communicated with a rod cavity of the flameout air cylinder 14, and a control port K of the third pneumatic control valve 13 is communicated with an execution port A of the electromagnetic directional valve 5; a third piston rod 14-1 of the flameout cylinder 14 is fixedly connected with a flameout switch of the diesel engine, and a third cylinder body 14-2 of the flameout cylinder 14 is hinged to a frame of the vehicle.
As shown in FIG. 2, in use, the water pipe assembly 10 is mounted on a frame 100 of a vehicle, and one end of the cross pipe 10-1 having the longitudinal pipe 10-2 is mounted on a head side of the vehicle, and one end of the cross pipe 10-1 not having the longitudinal pipe 10-2 is mounted on a tail side of the vehicle.
As shown in fig. 3, water is supplied to water tube assembly 10 to top wall AB of cross tube 10-1 of water tube assembly 10 by placing water tube assembly 10 in a horizontal state, so that cross tube 10-1 of water tube assembly 10 is filled with water.
As shown in figures 1 and 4, when the vehicle runs on a heavy slope or downhill, the water level line in the water pipe assembly 10 is the CD line in figure 4, the water level at the position of the longitudinal pipe 10-2 rises, when the water level at the position of the liquid level switch 11 in the longitudinal pipe 10-2 rises to a set value, the liquid level switch 11 is switched on, the terminal K of the electromagnetic directional valve 5 is electrified, the port P of the air inlet of the electromagnetic directional valve 5 is communicated with the port A of the execution port, the pressure gas in the air bag 9 reaches the rodless cavity of the butterfly valve cylinder 7 through the electromagnetic directional valve 5, the second piston rod 7-1 of the butterfly valve cylinder 7 drives the handle 8-1 of the exhaust butterfly valve 8 to rotate, so that the exhaust butterfly valve 8 is in a closed state, namely, exhaust braking is automatically performed. Meanwhile, the pressure gas in the gas bag 9 reaches a gas control port K of the first gas control valve 4 and a gas control port K of the second gas control valve 6 through the electromagnetic directional valve 5, so that a gas inlet P port of the first gas control valve 4 is not communicated with an execution port A, and a gas inlet P port of the second gas control valve 6 is communicated with the execution port A, so that the pressure gas in the gas bag 9 cannot reach the manual directional valve through the first gas control valve 4 and then reach the gear shifting cylinder 2, but the pressure gas in the gas bag 9 can reach a rodless cavity of the gear shifting cylinder 2 through the second gas control valve 6, and the vehicle is automatically engaged in a high-speed gear 3. The operation is very convenient.
When a vehicle runs on a small downhill road, a flat road or an uphill road, the water level at the position of a longitudinal pipe 10-2 is reduced, when the water level at the position of a liquid level switch 11 in the longitudinal pipe 10-2 is lower than a set value, the liquid level switch 11 is disconnected, a terminal K of an electromagnetic directional valve 5 loses electricity, a port P of an air inlet of the electromagnetic directional valve 5 is not communicated with a port A of an execution port, pressure gas in an air bag 9 cannot reach a rodless cavity of a butterfly valve cylinder 7 through the electromagnetic directional valve 5, the butterfly valve cylinder 7 is reset under the action of a spring, and a second piston rod 7-1 of the butterfly valve cylinder 7 drives a handle 8-1 of an exhaust butterfly valve 8 to rotate to enable the exhaust butterfly valve 8 to be in an open state, namely exhaust brake is; meanwhile, the pressure gas in the gas bag 9 can not reach the pneumatic control port K of the first pneumatic control valve 4 and the pneumatic control port K of the second pneumatic control valve 6 through the electromagnetic directional valve 5, so that the gas inlet P port of the first pneumatic control valve 4 is communicated with the execution port A, and the gas inlet P port of the second pneumatic control valve 6 is not communicated with the execution port A, so that the pressure gas in the gas bag 9 can reach the gas inlet P port of the manual directional valve 1 through the first pneumatic control valve 4, and the manual directional valve 1 is operated, so that the normal gear engaging operation can be carried out. At the same time, the pressure gas in the gas bag 9 cannot reach the rodless cavity of the shift cylinder 2 through the second pneumatic control valve 6.
When the diesel engine also comprises a third pneumatic control valve 13 and a flameout cylinder 14, a terminal K of the electromagnetic directional valve 5 is electrified, when an air inlet P port of the electromagnetic directional valve 5 is communicated with an execution port A port, pressure gas in the air bag 9 can reach a control port K port of the third pneumatic control valve 13 through the electromagnetic directional valve 5, so that the air inlet P port of the third pneumatic control valve 13 is communicated with the execution port A port, the pressure gas enters a rod cavity of the flameout cylinder 14, and a piston rod 14-1 of the flameout cylinder 14 drives a flameout switch of the diesel engine to act, so that the diesel engine is flameout. Therefore, the engine can be automatically turned off when exhaust braking is performed.
Claims (2)
1. The utility model provides a downhill path automatic exhaust arresting gear of vehicle, includes hand-operated direction valve (1), shifts cylinder (2), shifts operating valve (3), butterfly valve cylinder (7), exhaust butterfly valve (8) and gas bag (9), its characterized in that: the device also comprises a first pneumatic control valve (4), an electromagnetic directional valve (5), a second pneumatic control valve (6), a water pipe assembly (10), a liquid level switch (11) and a power supply (12); the water pipe assembly (10) comprises a transverse pipe (10-1) and a longitudinal pipe (10-2), the longitudinal pipe (10-2) is located at one end of the transverse pipe (10-1), the longitudinal pipe (10-2) is fixedly connected to the top wall of the transverse pipe (10-1), and the inner cavity of the transverse pipe (10-1) is communicated with the inner cavity of the longitudinal pipe (10-2); an air inlet P port of the electromagnetic directional valve (5) is communicated with the air bag (9), an execution port A port of the electromagnetic directional valve (5) is respectively communicated with an air control port K port of the first air control valve (4), an air control port K port of the second air control valve (6) and a rodless cavity of the butterfly valve cylinder (7), an air outlet T port of the electromagnetic directional valve (5) is communicated with the atmosphere, and a terminal K of the electromagnetic directional valve (5) is electrically connected with the power supply (12); the liquid level switch (11) is arranged on a longitudinal pipe (10-2) of the water pipe assembly (10) and is connected in series in a connecting circuit between the electromagnetic directional valve (5) and the power supply (12), and a detection element of the liquid level switch (11) is inserted into the longitudinal pipe (10-2); when the water level at the liquid level switch (11) is higher than a set value, the liquid level switch (11) is switched on, and a terminal K of the electromagnetic directional valve (5) is electrified; a second cylinder body (7-2) of the butterfly valve cylinder (7) is hinged to a frame of the vehicle, and a second piston rod (7-1) of the butterfly valve cylinder (7) is fixedly connected with a handle (8-1) of the exhaust butterfly valve (8); an air inlet port P of the first pneumatic control valve (4) is communicated with the air bag (9), and an execution port A of the first pneumatic control valve (4) is communicated with an air inlet port P of the manual reversing valve (1); an execution port A and an execution port B of the manual reversing valve (1) are respectively communicated with a rodless cavity and a rod cavity of the gear shifting cylinder (2), and a gas outlet T of the manual reversing valve (1) is communicated with the atmosphere; a first cylinder body (2-2) of the gear shifting cylinder (2) is hinged to a frame of a vehicle, and a first piston rod (2-1) of the gear shifting cylinder (2) is fixedly connected with a valve rod (3-1) of a gear shifting operation valve (3); an air inlet port P of the second pneumatic control valve (6) is communicated with the air bag (9), and an execution port A of the second pneumatic control valve (6) is communicated with a rodless cavity of the gear shifting cylinder (2); in use, one end of the transverse pipe (10-1) with the longitudinal pipe (10-2) is arranged at the vehicle head side of the vehicle, and the other end of the transverse pipe (10-1) without the longitudinal pipe (10-2) is arranged at the vehicle tail side.
2. A downhill automatic exhaust brake apparatus for a vehicle according to claim 1, characterized in that: the device also comprises a third pneumatic control valve (13) and a flameout cylinder (14); an air inlet P port of the third pneumatic control valve (13) is communicated with the air bag (9), an execution port A port of the third pneumatic control valve (13) is communicated with a rod cavity of the flameout air cylinder (14), and a control port K port of the third pneumatic control valve (13) is communicated with an execution port A port of the electromagnetic directional valve (5); a third piston rod (14-1) of the flameout cylinder (14) is fixedly connected with a flameout switch of the diesel engine, and a third cylinder body (14-2) of the flameout cylinder (14) is hinged to a frame of the vehicle.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911036330.5A CN110700948A (en) | 2017-07-01 | 2017-07-01 | Vehicle braking method |
| CN201911036802.7A CN110700949A (en) | 2017-07-01 | 2017-07-01 | Vehicle and working method thereof |
| CN201710528966.6A CN107131061B (en) | 2017-07-01 | 2017-07-01 | Downhill automatic exhaust brake device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528966.6A CN107131061B (en) | 2017-07-01 | 2017-07-01 | Downhill automatic exhaust brake device for vehicle |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911036802.7A Division CN110700949A (en) | 2017-07-01 | 2017-07-01 | Vehicle and working method thereof |
| CN201911036330.5A Division CN110700948A (en) | 2017-07-01 | 2017-07-01 | Vehicle braking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131061A CN107131061A (en) | 2017-09-05 |
| CN107131061B true CN107131061B (en) | 2020-05-15 |
Family
ID=59737042
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528966.6A Active CN107131061B (en) | 2017-07-01 | 2017-07-01 | Downhill automatic exhaust brake device for vehicle |
| CN201911036330.5A Withdrawn CN110700948A (en) | 2017-07-01 | 2017-07-01 | Vehicle braking method |
| CN201911036802.7A Withdrawn CN110700949A (en) | 2017-07-01 | 2017-07-01 | Vehicle and working method thereof |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
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| CN201911036330.5A Withdrawn CN110700948A (en) | 2017-07-01 | 2017-07-01 | Vehicle braking method |
| CN201911036802.7A Withdrawn CN110700949A (en) | 2017-07-01 | 2017-07-01 | Vehicle and working method thereof |
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| CN107725967B (en) * | 2017-11-06 | 2019-06-11 | 北京讯腾智慧科技股份有限公司 | The driving device of pipe detector |
| CN108253135B (en) * | 2018-01-31 | 2019-08-30 | 浙江翊翔塑模股份有限公司 | Flame-out and the gear linkage of vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102889138A (en) * | 2012-09-21 | 2013-01-23 | 三一重工股份有限公司 | Engine exhaust brake control device and method and engineering vehicle |
| CN106089453A (en) * | 2016-07-29 | 2016-11-09 | 王付民 | The exhaust brake flameout system of vehicle |
| CN106121831A (en) * | 2016-08-02 | 2016-11-16 | 朱明德 | The throttle of a kind of vehicle, gear, exhaust brake combined control system |
| CN106194442A (en) * | 2016-08-02 | 2016-12-07 | 朱明德 | The throttle of a kind of vehicle, gear, exhaust brake combination control method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718543B (en) * | 2009-11-26 | 2011-11-09 | 重庆交通大学 | Device for measuring deflection/ displacement line shape by pressure difference and method thereof |
| CN201778896U (en) * | 2010-09-07 | 2011-03-30 | 宝鸡华山工程车辆有限责任公司 | Novel automobile exhaust braking device |
| CN202648732U (en) * | 2012-05-02 | 2013-01-02 | 安徽理士电源技术有限公司 | Liquid level alarm circuit and acid adding machine |
| CN203449937U (en) * | 2013-08-29 | 2014-02-26 | 华南理工大学 | FSAE (formula SAE) racecar gear shifting system |
| CN103452676B (en) * | 2013-09-11 | 2015-10-28 | 大连理工大学 | A kind of engine exhaust and brake control system and controlling method |
| CN105172077B (en) * | 2015-08-13 | 2017-09-08 | 浙江中财管道科技股份有限公司 | A kind of injection mold internal cooling effect promoting structure |
| CN205517108U (en) * | 2016-01-26 | 2016-08-31 | 河南玻耐特防腐科技有限公司 | Telescopic washs multi -direction spray set of formula for desulfurizing tower |
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- 2017-07-01 CN CN201710528966.6A patent/CN107131061B/en active Active
- 2017-07-01 CN CN201911036330.5A patent/CN110700948A/en not_active Withdrawn
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889138A (en) * | 2012-09-21 | 2013-01-23 | 三一重工股份有限公司 | Engine exhaust brake control device and method and engineering vehicle |
| CN106089453A (en) * | 2016-07-29 | 2016-11-09 | 王付民 | The exhaust brake flameout system of vehicle |
| CN106121831A (en) * | 2016-08-02 | 2016-11-16 | 朱明德 | The throttle of a kind of vehicle, gear, exhaust brake combined control system |
| CN106194442A (en) * | 2016-08-02 | 2016-12-07 | 朱明德 | The throttle of a kind of vehicle, gear, exhaust brake combination control method |
Also Published As
| Publication number | Publication date |
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| CN110700949A (en) | 2020-01-17 |
| CN110700948A (en) | 2020-01-17 |
| CN107131061A (en) | 2017-09-05 |
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Denomination of invention: Downhill automatic exhaust braking device of vehicle Effective date of registration: 20211227 Granted publication date: 20200515 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhuji Binguo Technology Co.,Ltd. Registration number: Y2021980016329 |
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Granted publication date: 20200515 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhuji Binguo Technology Co.,Ltd. Registration number: Y2021980016329 |