CN216301082U - Pneumatic control system of toothed rail tractor - Google Patents
Pneumatic control system of toothed rail tractor Download PDFInfo
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- CN216301082U CN216301082U CN202122561840.3U CN202122561840U CN216301082U CN 216301082 U CN216301082 U CN 216301082U CN 202122561840 U CN202122561840 U CN 202122561840U CN 216301082 U CN216301082 U CN 216301082U
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Abstract
The utility model provides a pneumatic control system of a rack tractor, which relates to the technical field of locomotive pneumatic control of the rack tractor in a molten iron combined transportation mode, and is arranged on the rack tractor and comprises a main air pipe, a train pipe, a first valve component and an air source generating device, wherein the main air pipe is suitable for supplying air through the air source generating device; the first valve component comprises a relay valve, an electric control proportional valve, a blocking electromagnetic valve and an emergency electromagnetic valve, a control opening of the relay valve is connected with a main air pipe through the electric control proportional valve, a main air pipe opening of the relay valve is connected with the main air pipe, a main air blocking opening of the relay valve is connected with the main air pipe through the blocking electromagnetic valve, an air outlet of the relay valve is connected with a train pipe, the emergency electromagnetic valve is connected with the train pipe, and the train pipe is suitable for being connected with a braking air circuit of a railway container flat train. The utility model can realize the emergency braking and the normal braking when the rack track tractor controls the flat car of the traction railway container, and has safe use.
Description
Technical Field
The utility model relates to the technical field of locomotive brake control, in particular to a pneumatic control system of a rack track tractor.
Background
In the combined transport system for molten iron, a shunting machine pulls a railway container flat car into a wharf, and then a rack rail tractor needs to be remotely controlled to be connected with the railway container flat car and driven to move in a port loading and unloading area so as to realize loading and unloading of the wharf. The existing railway shunting machine generally adopts a JZ-7 type braking system, when a control handle of the JZ-7 type braking system is switched back and forth between a running position and a braking position, a main air pipe needs to be ensured to be switched between air supply and air supply cut-off for a train pipe, and under a molten iron combined transport system, when a rack track tractor needs to manually, remotely or remotely control to pull a railway container flat car, if the control handle is still in the running position at the moment, the main air pipe continues to supply air for the train pipe, so that the train can not timely implement emergency braking, the safety performance is poor, casualties and property loss are caused, and the dual requirements of emergency braking and normal braking of the train during loading and unloading operation of the rack track tractor can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pneumatic control system of a rack track tractor to solve the technical problem that the rack track tractor under the existing molten iron combined transport system can not meet the dual requirements of emergency braking and normal braking when controlling a railway container flat car.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a pneumatic control system of a rack tractor is arranged on the rack tractor and comprises a main air pipe, a train pipe, a first valve assembly and an air source generating device, wherein the main air pipe is suitable for supplying air through the air source generating device;
the first valve component comprises a relay valve, an electric control proportional valve, a shutoff electromagnetic valve and an emergency electromagnetic valve, wherein a control port of the relay valve is connected with the main air pipe through the electric control proportional valve, a main air pipe port of the relay valve is connected with the main air pipe, a main air shutoff port of the relay valve is connected with the main air pipe through the shutoff electromagnetic valve, an air outlet of the relay valve is connected with the train pipe, the emergency electromagnetic valve is connected with the train pipe, and the train pipe is suitable for being connected with a brake air circuit of a railway container flat train.
According to the pneumatic control system of the rack track tractor, the first valve component is arranged between the main air pipe and the train pipe, when emergency braking is needed, the whole train is powered off, at the moment, the electric control proportional valve, the interruption electromagnetic valve and the emergency electromagnetic valve are all powered off, the electric control proportional valve is not communicated with the control port of the relay valve, the interruption electromagnetic valve is communicated with the main air interruption port of the relay valve, the air source generating device is used for ventilating the main air pipe, air in the main air pipe enters the relay valve through the interruption electromagnetic valve and pushes the main air pipe port of the relay valve and the air outlet of the relay valve to be closed, the ventilation between the main air pipe and the train pipe is cut off, the emergency electromagnetic valve is communicated with the atmosphere to exhaust the air in the train pipe, so that the pressure of a railway container flat train braking air circuit connected with the train pipe is reduced, and braking under emergency conditions is realized;
under the normal driving condition, the electric control proportional valve is communicated with a control port of the relay valve, the shutoff electromagnetic valve is not communicated with a total air shutoff port of the relay valve, the pressure of air entering the control port of the relay valve is controlled to be increased or decreased through the input voltage of the electric control proportional valve, air in a total air pipe enters the control port of the relay valve and the total air pipe port of the relay valve, the air which is increased or decreased is discharged to a train pipe from an air outlet of the relay valve, the pressure in a brake air passage of a railway container flat train connected with the train pipe is increased or decreased, and the braking of the railway container flat train is relieved or braked;
this application the pneumatic control system of rack track tractor can realize emergency braking and the normal braking of railway container flatcar, use safelyr.
Optionally, the air source generating device comprises an air compressor and an air storage cylinder, an air outlet of the air compressor is connected with an air inlet of the air storage cylinder, and an air outlet of the air storage cylinder is communicated with the main air pipe.
Optionally, the air source generating device further comprises an oil-water separator and a dryer which are connected with each other, and the air outlet of the air compressor, the oil-water separator and the dryer are sequentially communicated with the air inlet of the air storage cylinder.
Optionally, the first valve assembly further comprises an emergency bleed valve connected to the train pipe for controlling the gas pressure within the train pipe.
Optionally, this rack tractor pneumatic control system still includes second valve subassembly and tractor brake, the tractor brake is suitable for and installs on the rack tractor, the rack tractor is suitable for the traction railway container flatcar, the second valve subassembly includes parking relay valve and parking solenoid valve, the brake control mouth warp of parking relay valve the parking solenoid valve with the train pipe links to each other, the braking air supply mouth of parking relay valve with the train pipe links to each other, the braking mouth of parking relay valve with the tractor brake is connected, the parking solenoid valve is suitable for through the parking relay valve is with the braking or alleviate the braking tractor brake.
Optionally, the pneumatic control system of the rack tractor further comprises a controller, and the controller is connected with the parking solenoid valve, the emergency solenoid valve and the electronic control proportional valve respectively.
Optionally, this rack tractor pneumatic control system still includes the sweep solenoid valve, the sweep solenoid valve is suitable for installing on the rack tractor, sweep the solenoid valve air inlet with air supply generating device's gas outlet links to each other, the gas outlet of sweep solenoid valve is suitable for the orientation the transmission rack of rack tractor below.
Optionally, the pneumatic control system of the rack tractor further comprises a pressure sensor, wherein the pressure sensor comprises a first pressure sensor and a second pressure sensor, the first pressure sensor is connected with the main air pipe, and the second pressure sensor is connected with the train pipe.
Optionally, the pneumatic control system of the rack track tractor further comprises a double-needle pressure gauge, and the double-needle pressure gauge is respectively connected with the main air pipe and the train pipe;
and/or the dust filter is suitable for being arranged on the main air pipe and other connecting pipes.
Optionally, the pneumatic control system of the rack track tractor further comprises an angle cock, the angle cock is arranged on the train pipe, and the train pipe is suitable for being connected with a braking air path of the railway container flat car through the angle cock.
Drawings
Fig. 1 is a schematic diagram of a pneumatic control system of a rack-track tractor according to an embodiment of the present invention.
Description of reference numerals:
1. a relay valve; 2. a dust filter; 3. intercepting the electromagnetic valve; 4. a double-needle pressure gauge; 5. an air compressor; 6. an oil-water separator; 7. a dryer; 8. an air storage cylinder; 9. a purge solenoid valve; 10. a main air duct; 11. a train pipe; 12. a tractor brake; 13. a parking solenoid valve; 14. a parking relay valve; 15. a pressure sensor; 151. a first pressure sensor; 152. a second pressure sensor; 16. a precision pressure reducing valve; 17. an emergency solenoid valve; 18. a folding angle cock; 19. an emergency release valve; 20. a ball valve; 21. an electrically controlled proportional valve.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", and the like in the embodiments indicate orientation words, which are used for simplifying the description of positional relationships based on the drawings of the specification, and do not represent that elements, devices, and the like which are referred to must operate according to specific orientations and defined operations and methods, configurations in the specification, and such orientation terms do not constitute limitations of the present invention.
As shown in fig. 1, the pneumatic control system of the rack tractor according to the embodiment of the present invention is installed on the rack tractor, and includes a main air duct 10, a train duct 11, a first valve assembly, and an air source generating device, where the main air duct 10 is adapted to supply air through the air source generating device;
the first valve component comprises a relay valve 1, an electric control proportional valve 21, an interruption electromagnetic valve 3 and an emergency electromagnetic valve 17, wherein a control port of the relay valve 1 is connected with the main air pipe 10 through the electric control proportional valve 21, a main air pipe port of the relay valve 1 is connected with the main air pipe 10, a main air interruption port of the relay valve 1 is connected with the main air pipe 10 through the interruption electromagnetic valve 3, an air outlet of the relay valve 1 is connected with the train pipe 11, the emergency electromagnetic valve 17 is connected with the train pipe 11, and the train pipe 11 is suitable for being connected with a brake air path of the railway container flat train;
the first valve component has a first working state and a second working state, in the first working state, the emergency electromagnetic valve 17, the shutoff electromagnetic valve 3 and the electronic control proportional valve 21 are powered off and disconnected, the shutoff electromagnetic valve 3 is communicated with a total air shutoff port of the relay valve 1, the relay valve 1 shuts off the total air pipe 10 to supply air to the train pipe 11, and the emergency electromagnetic valve 17 discharges the air in the train pipe 11; in the second working state, the emergency electromagnetic valve 17, the blocking electromagnetic valve 3 and the electronic control proportional valve 21 are electrically communicated, the blocking electromagnetic valve 3 is not communicated with a main air blocking port of the relay valve 1, and the relay valve 1 is communicated with the main air pipe 10 to supply air to the train pipe 11.
In this embodiment, the combined transportation system for molten iron comprises a railway container flat car and a rack tractor, wherein the rack tractor pulls the railway container flat car to move on a transmission rack, the transmission rack is laid on a railway track at one section of a port, and the rack tractor pulls the railway container flat car to move in a loading and unloading operation area of the port so as to complete loading and unloading operation. The pneumatic control system of this embodiment can be used to control emergency braking, normal braking and brake mitigation of the railway container flatcar.
The air source generating device is mainly used for generating compressed air for the main air pipe 10 to use, so that sufficient air in the main air pipe 10 is ensured, and the braking of the vehicle is conveniently realized. Three connecting pipelines are connected between the main air pipe 10 and the relay valve 1, wherein the first pipeline is connected with a control port of the relay valve 1 through a precision pressure reducing valve 16 and an electric control proportional valve 21; the second path is connected with a main air pipe port of the relay valve 1 through a ball valve 20 and a dust filter 2; the third path is connected with a total wind blocking port of the relay valve 1 through a blocking electromagnetic valve 3; a ball valve 20 and a dust filter 2 are arranged on a connecting pipeline between the relay valve 1 and the train pipe 11, and the train pipe 11 can be controlled to be on or off through an emergency electromagnetic valve 17; a dust filter can also be arranged on the main air duct 10.
Here, the relay valve 1 is controlled by the electrically controlled proportional valve 21 to control the gas pressure in the train pipe 11, so as to realize ventilation or stop ventilation to the train pipe 11; the dust filter 2 filters dust particles which exceed the standard in the process of generating the wind source; the shutoff electromagnetic valve 3 is controlled by an emergency electromagnetic valve 17 and is used for opening or closing the air supply of the main air pipe 10 to the train pipe 11; the precision pressure reducing valve 16 outputs stable compressed gas with reduced pressure for the relay valve 1 to use; the emergency electromagnetic valve 17 is arranged on the gear track tractor and is a two-position two-way valve, whether pressure air in the train pipe 11 connected with the emergency electromagnetic valve is discharged outwards or not is controlled by controlling the on-off state of the emergency electromagnetic valve 17, when the emergency electromagnetic valve 17 is powered off and is communicated with the external atmosphere, the air in the train pipe 11 is controlled to be discharged to the atmosphere, the pressure of the train pipe 11 is reduced to brake a railway container flat train connected with the train pipe 11, and the train pipe 11 and a brake air circuit of a railway train can be connected through a folding angle plug 18; the electrically controlled proportional valve 21 varies the output gas pressure in accordance with the input voltage, and the continuous variation of the output pressure is realized by the continuously varying voltage. The shutoff electromagnetic valve 3 and the electric control proportional valve 21 are controlled to be powered on and powered off through the corresponding electromagnetic valve switches.
Illustratively, when emergency braking is needed when the railway container flat car is in power failure, at the moment, the electric control proportional valve 21, the shutoff electromagnetic valve 3 and the emergency electromagnetic valve 17 are all powered off, the electric control proportional valve 21 is not communicated with the control port of the relay valve 1, the shutoff electromagnetic valve 3 is communicated with the total air shutoff port of the relay valve 1, air in the total air pipe 10 enters the relay valve 1 through the shutoff electromagnetic valve 3 and pushes to close the total air pipe port of the relay valve 1 and the air outlet of the relay valve 1, ventilation between the total air pipe 10 and the train pipe 11 is cut off, the emergency electromagnetic valve 17 is communicated with the atmosphere to quickly discharge the air in the train pipe 11, so that the pressure of a railway container flat car braking air circuit connected with the train pipe 11 is reduced, and braking in emergency is realized.
Illustratively, when the railway container flat car needs to be normally braked, the electrically controlled proportional valve 21 is communicated with the control port of the relay valve 1, the shutoff solenoid valve 3 is not communicated with the total air shutoff port of the relay valve 1, the pressure of air entering the control port of the relay valve 1 is reduced under the control of the reduction of the input voltage of the electrically controlled proportional valve 21, air in the total air pipe 10 enters the control port of the relay valve 1 and the total air pipe port of the relay valve 1, the reduced air is discharged to the train pipe 11 from the air outlet of the relay valve 1, the pressure in a brake air path of the railway container flat car connected with the train pipe 11 is reduced, and the railway container flat car is braked.
Illustratively, when normal braking is needed to relieve the railway container flat car, the electronic control proportional valve 21 is communicated with the control port of the relay valve 1, the shutoff electromagnetic valve 3 is not communicated with the total air shutoff port of the relay valve 1, the pressure of air entering the control port of the relay valve 1 is increased under the control of the increase of the input voltage of the electronic control proportional valve 21, air in the total air pipe 10 enters the control port of the relay valve 1 and the total air pipe port of the relay valve 1, the air is exhausted to the train pipe 11 from the air outlet of the relay valve 1 through the increased air, the pressure in a braking air passage of the railway container flat car connected with the train pipe 11 is increased, and the railway container flat car is braked to relieve;
the pneumatic control system of the toothed rail tractor can realize emergency braking and normal braking of the railway container flat car, and is safer to use.
Optionally, the air source generating device comprises an air compressor 5 and an air storage cylinder 8, an air outlet of the air compressor 5 is connected with an air inlet of the air storage cylinder 8, and an air outlet of the air storage cylinder 8 is connected with the main air pipe 10 and the sweeping and blowing electromagnetic valve 9 respectively.
In this embodiment, the air compressor 5 is configured to generate compressed air, and the reservoir 8 is configured to store the generated compressed air to meet the usage requirement of the braking system, and the number and specification of the air compressor 5 and the reservoir 8 are not limited herein.
Optionally, the air source generating device further comprises an oil-water separator 6 and a dryer 7 which are connected with each other, and the air outlet of the air compressor 5, the oil-water separator 6, the dryer 7 and the air inlet of the air storage tank 8 are sequentially communicated.
In the embodiment, the compressed air output by the air compressor 5 enters the oil-water separator 6, and impurities such as condensed moisture and oil in the compressed air are separated by the oil-water separator 6, so that the compressed air is primarily purified; the dryer 7 is a double-tower dryer, said dryer 7 generally being adapted to dry compressed air by using an adsorbent. The compressed air passing through the oil-water separator 6 and the dryer 7 enters the reservoir 8 and is stored therein.
Optionally, the first valve assembly further comprises an emergency bleed valve 19, the emergency bleed valve 19 being connected to the train pipe 11 for being adapted to control the gas pressure within the train pipe 11.
In this embodiment, the emergency release valve 19 is disposed on the rack-track tractor, the emergency release valve 19 is communicated with the train pipe 11, the gas pressure in the train pipe 11 is controlled by opening and closing the emergency release valve 19, when the emergency electromagnetic valve 17 fails, the emergency release valve 19 can be manually controlled to discharge the compressed air in the train pipe 11, the compressed air in the train pipe 11 drops rapidly, and the brake of the railway container flat car connected with the train pipe 11 performs emergency braking.
Optionally, the pneumatic control system for the rack tractor further comprises a second valve assembly and a tractor brake 12, the tractor brake 12 is suitable for being installed on the rack tractor, the rack tractor is suitable for towing the railway container flat wagon, the second valve assembly comprises a parking relay valve 14 and a parking solenoid valve 13, a brake control port of the parking relay valve 14 is connected with the train pipe 11 through the parking solenoid valve 13, a brake air supply port of the parking relay valve 14 is connected with the train pipe 11, a brake port of the parking relay valve 14 is connected with the tractor brake 12, and the parking solenoid valve 13 is suitable for braking or relieving braking of the tractor brake 12 through the parking relay valve 14.
In this embodiment, in the combined transportation system for molten iron, the rack tractor pulls the railway container flat car to move in the loading and unloading area of the wharf so as to load and unload goods, and in order to ensure that the running states of the rack tractor and the railway train are synchronous, the braking control of the rack tractor can be added into the system, so that the synchronous braking and the braking relief of the rack tractor and the railway container flat car are realized.
Illustratively, parking solenoid valve 13 is two-position three-way valve, including on and off, does not have the intermediate level, parking solenoid valve 13 receives the parking solenoid valve on-off control on the rack tractor, parking solenoid valve 13 controllable parking relay valve 14, parking relay valve 14 control tractor stopper 12, tractor stopper 12 is used for after the rack tractor stabilizes in order to stabilize the rack tractor.
When the gear track tractor needs emergency braking, the whole tractor is powered off, at the moment, the parking electromagnetic valve 13 is powered off, the train pipe 11 is not communicated with the brake control port of the parking relay valve 14, the brake air supply port of the parking relay valve 14 is communicated with the atmosphere, the tractor brake 12 is communicated with the atmosphere through the brake port of the parking relay valve 14, compressed air in the brake cylinder is rapidly exhausted, and the tractor brake 12 performs emergency braking.
When the gear track tractor needs to be normally braked, the parking electromagnetic valve 13 is powered off and closed, the train pipe 11 is not communicated with the brake control port of the parking relay valve 14, the brake air supply port of the parking relay valve 14 is closed under the action of the spring of the brake port of the parking relay valve 14, the brake port of the parking relay valve 14 is opened to the atmosphere, the brake cylinder of the tractor brake 12 is communicated to the atmosphere, compressed air in the brake cylinder is exhausted under the restoring force of the compression spring of the tractor brake 12, and the tractor brake 12 brakes.
When the normal braking is required to be relieved during the rack tractor, parking solenoid valve 13 gets to the electricity and opens, and compressed air gets into through parking solenoid valve 13 in the train pipe 11 the braking control mouth of parking relay valve 14, under compressed air's effect, the braking mouth of parking relay valve 14 is closed, and not the atmosphere, the braking air supply mouth of parking relay valve 14 is opened, the compressed air of the braking air supply mouth of parking relay valve 14 advances tractor brake 12 with the spring of compression tractor brake 12, and the braking of tractor brake 12 is alleviated.
Optionally, the pneumatic control system of the rack tractor further comprises a controller, and the controller is respectively connected with the parking solenoid valve 13, the emergency solenoid valve 17 and the electronic control proportional valve 21.
In this embodiment, the parking solenoid valve 13, the emergency solenoid valve 17 and the electronic control proportional valve 21 are respectively connected to a controller, and the controller is used to remotely or remotely control the rack tractor and the railway container flat car. Of course, the parking solenoid valve 13, the emergency solenoid valve 17, and the parking solenoid valve switch, the emergency solenoid valve switch, and the electric control proportional valve switch corresponding to the electric control proportional valve 21 may also be installed on the rack tractor, so as to conveniently implement manual control.
Optionally, the pneumatic control system of the rack tractor further comprises a sweeping solenoid valve 9, the sweeping solenoid valve 9 is suitable for being installed on the rack tractor, an air inlet of the sweeping solenoid valve 9 is connected with an air outlet of the air source generating device, and an air outlet of the sweeping solenoid valve 9 is suitable for facing a transmission rack below the rack tractor.
In this embodiment, the sweep-blow solenoid valve 9 can be controlled to be powered on to atmosphere by the sweep-blow solenoid valve switch, the sweep-blow solenoid valve 9 is communicated with the air outlet of the air storage cylinder 8 of the air source generating device, the air outlet direction of the sweep-blow solenoid valve 9 faces the direction indicated by the transmission rack, and the compressed air blown out by the sweep-blow solenoid valve 9 is used for sweeping the transmission rack. Of course, in the event of emergency braking, the purge solenoid valve 9 is de-energized, and the purge solenoid valve 9 cannot perform gas purge on the drive rack.
Optionally, the pneumatic control system of the rack tractor further comprises a pressure sensor 15, wherein the pressure sensor 15 comprises a first pressure sensor 151 and a second pressure sensor 152, the first pressure sensor 151 is connected with the main air pipe 10, and the second pressure sensor 152 is connected with the train pipe 11.
In this embodiment, the first pressure sensor 151 is connected to the main air pipe 10 to collect a pressure signal on the main air pipe 10, the second pressure sensor 152 is connected to the train pipe 11 to collect a pressure signal on the train pipe 11, and the collected pressure signal is processed to enter a vehicle control unit to control the warning control device to alarm or send a control signal, so as to implement remote control.
Optionally, the pneumatic control system of the rack track tractor further comprises a double-needle pressure gauge 4, and the double-needle pressure gauge 4 is connected with the main air pipe 10 and the train pipe 11 respectively.
In this embodiment, the double-needle pressure gauge 4 is used for displaying the real-time pressures of the main air pipe 10 and the train pipe 11 so as to take measures in time.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A pneumatic control system of a rack tractor is arranged on the rack tractor and is characterized by comprising a main air pipe (10), a train pipe (11), a first valve assembly and an air source generating device, wherein the main air pipe (10) is suitable for supplying air through the air source generating device;
the first valve component comprises a relay valve (1), an electric control proportional valve (21), a blocking electromagnetic valve (3) and an emergency electromagnetic valve (17), a control port of the relay valve (1) is connected with a main air pipe (10) through the electric control proportional valve (21), a main air pipe port of the relay valve (1) is connected with the main air pipe (10), a main air blocking port of the relay valve (1) is connected with the main air pipe (10) through the blocking electromagnetic valve (3), an air outlet of the relay valve (1) is connected with a train pipe (11), the emergency electromagnetic valve (17) is connected with the train pipe (11), and the train pipe (11) is suitable for being connected with a brake air circuit of a railway container flat train.
2. The pneumatic control system of the rack track tractor according to claim 1, wherein the air source generating device comprises an air compressor (5) and an air storage cylinder (8), an air outlet of the air compressor (5) is connected with an air inlet of the air storage cylinder (8), and an air outlet of the air storage cylinder (8) is communicated with the main air pipe (10).
3. The pneumatic control system of the toothed rail tractor according to claim 2, wherein the gas source generating device further comprises an oil-water separator (6) and a dryer (7) which are connected with each other, and an air outlet of the air compressor (5), the oil-water separator (6), the dryer (7) and an air inlet of the air storage cylinder (8) are sequentially communicated.
4. The pneumatic control system of a rack tractor according to claim 1, characterized in that the first valve assembly further comprises an emergency bleed valve (19), the emergency bleed valve (19) being connected to the train pipe (11) so as to be adapted to control the gas pressure inside the train pipe (11).
5. The gear track tractor pneumatic control system according to claim 1, further comprising a second valve assembly and a tractor brake (12), the tractor brake (12) is adapted to be mounted on a rack-track tractor adapted to tow the railway container flat car, the second valve assembly comprises a parking relay valve (14) and a parking solenoid valve (13), the brake control port of the parking relay valve (14) is connected with the train pipe (11) through the parking electromagnetic valve (13), the braking air supply port of the parking relay valve (14) is connected with the train pipe (11), the brake port of the parking relay valve (14) is connected with the tractor brake (12), the parking solenoid valve (13) is adapted to brake or ease braking of the tractor brake (12) by means of the parking relay valve (14).
6. The pneumatic control system of a toothed track tractor according to claim 5, characterized in that it further comprises a controller connected to the parking solenoid valve (13), the emergency solenoid valve (17) and the electrically controlled proportional valve (21), respectively.
7. The pneumatic control system of the rack tractor according to claim 5, characterized by further comprising a purge solenoid valve (9), wherein the purge solenoid valve (9) is suitable for being installed on the rack tractor, an air inlet of the purge solenoid valve (9) is connected with an air outlet of the air source generating device, and an air outlet of the purge solenoid valve (9) is suitable for facing a transmission rack below the rack tractor.
8. The pneumatic control system of a rack tractor according to claim 1, characterized in that the pneumatic control system further comprises a pressure sensor (15), wherein the pressure sensor (15) comprises a first pressure sensor (151) and a second pressure sensor (152), the first pressure sensor (151) is connected with the main air pipe (10), and the second pressure sensor (152) is connected with the train pipe (11).
9. The pneumatic control system of the rack track tractor according to claim 1, characterized by further comprising a double-needle pressure gauge (4), wherein the double-needle pressure gauge (4) is respectively connected with the main air pipe (10) and the train pipe (11);
and/or the dust filter (2) is further included, and the dust filter (2) is suitable for being arranged on the main air pipe (10) and other connecting pipes.
10. The pneumatic control system of a tooth track tractor according to claim 1, characterized by further comprising a dog-ear plug (18), wherein the dog-ear plug (18) is arranged on the train pipe (11), and the train pipe (11) is suitable for being connected with a brake gas path of the railway container flat train through the dog-ear plug (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122561840.3U CN216301082U (en) | 2021-10-21 | 2021-10-21 | Pneumatic control system of toothed rail tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122561840.3U CN216301082U (en) | 2021-10-21 | 2021-10-21 | Pneumatic control system of toothed rail tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216301082U true CN216301082U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122561840.3U Active CN216301082U (en) | 2021-10-21 | 2021-10-21 | Pneumatic control system of toothed rail tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216301082U (en) |
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2021
- 2021-10-21 CN CN202122561840.3U patent/CN216301082U/en active Active
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