CN105172833B - It is a kind of to eliminate the device that lorry pressure is overcharged - Google Patents
It is a kind of to eliminate the device that lorry pressure is overcharged Download PDFInfo
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- CN105172833B CN105172833B CN201510603604.XA CN201510603604A CN105172833B CN 105172833 B CN105172833 B CN 105172833B CN 201510603604 A CN201510603604 A CN 201510603604A CN 105172833 B CN105172833 B CN 105172833B
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Abstract
The invention provides the device that a kind of elimination lorry pressure is overcharged, including：The inside of valve seat is provided with pilot valve；Studs is arranged on one end of the valve seat；The side of valve seat is connected by one end of studs and the control valve support of lorry；The opposite side of valve seat is connected by the other end of studs with the control valve of the lorry, so that the first interface of the valve seat is connected with the control room of the control valve, second interface is connected with the brake pipe of the control valve, 3rd interface is connected with the checking cylinder of the control valve, and the 4th interface is connected with the auxiliary reservoir of the control valve；Wherein, when to the lorry fill character and conduct and make, the Brake pipe pressure of the control valve, which rises, causes the chamber volume of pilot valve to be connected with the control room, and the pressure of the reduction control room, the pressure that the lorry is eliminated automatically is overcharged；In this way, truck vehicle after brakes is changed can automatically, efficiently reach the requirement alleviated automatically.
Description
Technical Field
The invention belongs to the technical field of railway transportation, and particularly relates to a device for eliminating pressure overcharge of a wagon.
Background
At present, a single-tube braking or double-tube braking system is generally adopted in a railway freight car air braking system, and a control valve bracket which meet the International Union of railways (UIC) standard are adopted in the braking system. The braking system is generally referred to as a locomotive.
However, the air supply pressure required by the freight cars running on different railway lines is different, so when the freight cars run on a railway, the locomotive needs to be replaced, and the freight cars are inflated before running. For example, the locomotive air supply pressure running on the first line is 550KPa, the locomotive air supply pressure running on the second line is 500KPa, and when the truck vehicle is transferred from the first line to the second line, after the locomotive is replaced, the truck vehicle needs to be inflated again to relieve the truck vehicle.
In the prior art, before the freight car starts to operate, workers have to relieve the manual exhaust of control valves of all the cars in a car group and then re-aerate the freight car through a locomotive. However, the following problems mainly exist in this method: firstly, manual air exhaust and air inflation of the truck can not immediately and automatically relieve the truck and the vehicle while the labor intensity of workers is increased; second, inadvertent operator override may result in the vehicle slipping without release.
Based on this, there is a need for a device for eliminating the over-charging pressure of a truck, so as to meet the requirement that the truck can automatically and efficiently achieve automatic relief after the brake system is replaced.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a device for eliminating the pressure overcharge of a truck, which is used for solving the technical problem that the truck cannot automatically and efficiently relieve automatically after a brake system of the truck is replaced in the prior art.
The invention provides a device for eliminating the pressure overcharge of a truck, which comprises:
the valve seat is internally provided with a pilot valve;
a stud disposed at one end of the valve seat;
one side of the valve seat is connected with a control valve bracket of the truck through one end of the stud;
the other side of the valve seat is connected with a control valve of the truck through the other end of the stud bolt, so that a first interface of the valve seat is connected with a control chamber of the control valve, a second interface of the valve seat is connected with a brake pipe of the control valve, a third interface of the valve seat is connected with a brake cylinder of the control valve, and a fourth interface of the valve seat is connected with an auxiliary air cylinder of the control valve; wherein,
when the truck is inflated, the pressure of the brake pipe of the control valve rises to enable the volume chamber of the pilot valve to be communicated with the control chamber, the pressure of the control chamber is reduced, the pressure overcharge of the truck is automatically eliminated, and the truck is automatically relieved.
In the scheme, one end of the double-end stud is provided with the spring washer and the nut, and one end of the double-end stud is connected with the control valve bracket of the truck through the nut.
In the above aspect, the pilot valve includes:
the valve body is provided with a diaphragm plate;
one end of the first valve is connected with one end of the valve body, and the other end of the first valve is connected with one end of the volume chamber of the pilot valve;
and one end of the second valve is connected with the other end of the valve body, and the other end of the second valve is connected with the other end of the volume chamber of the pilot valve.
In the scheme, the fastening torque of the nut is 70-75 Nm.
In the above scheme, the fifth port of the valve seat is connected with the control chamber port of the control valve bracket; the sixth interface of the valve seat is connected with the brake pipe interface of the control valve bracket; the seventh port of the valve seat is connected with the brake cylinder port of the control valve bracket; and the eighth interface of the valve seat is connected with the auxiliary reservoir interface of the control valve bracket.
The invention provides a device for eliminating pressure overcharge of a truck, which comprises: the valve seat is internally provided with a pilot valve; a stud disposed at one end of the valve seat; one side of the valve seat is connected with a control valve bracket of the truck through one end of the stud; the other side of the valve seat is connected with a control valve of the truck through the other end of the stud bolt, so that a first interface of the valve seat is connected with a control chamber of the control valve, a second interface of the valve seat is connected with a brake pipe of the control valve, a third interface of the valve seat is connected with a brake cylinder of the control valve, and a fourth interface of the valve seat is connected with an auxiliary air cylinder of the control valve; when the truck is inflated, the pressure of the brake pipe of the control valve rises, so that the volume chamber of the pilot valve is communicated with the control chamber, the pressure of the control chamber is reduced, and the pressure overcharge of the truck is automatically eliminated; therefore, after the truck is replaced with the brake systems with different air supply pressures, the truck can be automatically and efficiently relieved automatically without depending on manual air charging of workers to relieve the truck.
Drawings
FIG. 1 is a front view of a device for relieving truck pressure overcharge according to an embodiment of the present invention;
fig. 2 is a schematic view of an overall structure of a pilot valve according to an embodiment of the present invention when the pilot valve is connected to a valve seat.
Detailed Description
In order to automatically and efficiently relieve the truck after the truck replaces a brake system with different air supply pressures, the invention provides a device for eliminating the pressure overcharge of the truck, which comprises: the valve seat is internally provided with a pilot valve; a stud disposed at one end of the valve seat; one side of the valve seat is connected with a control valve bracket of the truck through one end of the stud; the other side of the valve seat is connected with a control valve of the truck through the other end of the stud bolt, so that a first interface of the valve seat is connected with a control chamber of the control valve, a second interface of the valve seat is connected with a brake pipe of the control valve, a third interface of the valve seat is connected with a brake cylinder of the control valve, and a fourth interface of the valve seat is connected with an auxiliary air cylinder of the control valve; when the truck is inflated, the pressure of the brake pipe of the control valve rises, so that the volume chamber of the pilot valve is communicated with the control chamber, the pressure of the control chamber is reduced, and the pressure overcharge of the truck is automatically eliminated.
The technical solution of the present invention is further described in detail by the accompanying drawings and the specific embodiments.
The embodiment provides a device for eliminating the pressure overcharge of a truck, as shown in fig. 1, the device comprises: the valve comprises a valve seat 1, a pilot valve 2 and a stud 3; wherein,
a pilot valve 2 is arranged in the valve seat 1;
specifically, as shown in fig. 2, the pilot valve 2 includes: a valve body 21, a diaphragm 22, a first valve 23, a volume chamber 24, a second valve 25; wherein,
the valve body 21 is provided with a diaphragm 22; one end of the first valve 23 is connected with one end of the valve body 21, and the other end of the first valve 23 is connected with one end of a volume chamber 24 of the pilot valve 2;
one end of the second valve 25 is connected to the other end of the valve body 21, and the other end of the second valve 25 is connected to the other end of the volume chamber 24 of the pilot valve 2.
Further, the stud 3 is arranged at one end of the valve seat 1; one side of the valve seat 1 is connected with a control valve bracket 4 of the truck through one end of the stud bolt 3; the other side of the valve seat 1 is connected to the control valve 5 of the truck via the other end of the stud bolt 3, such that the first port 11 of the valve seat 1 is connected to the control chamber 51 of the control valve 5, the second port 12 is connected to the brake pipe 52 of the control valve 5, the third port 13 is connected to the brake cylinder 53 of the control valve 5, and the fourth port 14 is connected to the auxiliary reservoir 54 of the control valve 5.
Here, the first port 11 is a control room port, the second port 12 is a brake pipe port, the third port 13 is a brake cylinder port, and the fourth port 14 is an auxiliary reservoir port. When the other side of the valve seat 1 is connected with the control valve 5 of the truck through the other end of the stud bolt 3, the other end of the stud bolt 3 is screwed with the control valve 5, and the screwing depth is 15-20 mm, preferably 15 mm.
Furthermore, one end of the stud bolt 3 is provided with a spring washer 6 and a nut 7, and one end of the stud bolt 3 is connected with the control valve bracket 4 of the truck through the nut 7. Wherein the fastening torque of the nut 7 is 70-75 Nm.
In addition, when one side of the valve seat 1 is connected with the control valve bracket 4 of the truck through one end of the stud bolt 3, the interface of one side of the valve seat 1 must be correspondingly connected with the interface of the control valve bracket 4. That is, the fifth port 15 on the valve seat 1 side is connected to the control chamber port of the control valve holder 4, the sixth port 16 on the valve seat 1 side is connected to the brake pipe port of the control valve holder 4, the seventh port 17 on the valve seat 1 side is connected to the brake cylinder port of the control valve holder 4, and the eighth port 18 on the valve seat 1 side is connected to the auxiliary cylinder port of the control valve holder 4.
In practical application, after a truck vehicle is braked and the truck is inflated, a locomotive cab driver operates an inflation button, the pressure of the brake pipe of the control valve 5 rises to enable the volume chamber 24 of the pilot valve 2 to be communicated with the control chamber 51, the pressure of the control chamber 51 is reduced, the pressure over-inflation of the truck is automatically eliminated, and the truck is automatically relieved.
Specifically, after a truck vehicle is braked, when the truck is inflated, the truck vehicle may be in the following two states;
in the first state, when the pressure in the control chamber 51 is not greater than 300KPa, the pressure in the right control chamber 51 of the diaphragm 22 in the pilot valve 2 corresponds to the pressure in the left brake pipe 52. At this time, the first valve 23 is opened, the second valve 25 is closed, and the volume chamber 24 of the pilot valve 2 communicates with the control chamber 51.
In the second state, when the pressure in the control chamber 51 is greater than 300KPa, the pressure in the right control chamber 51 of the diaphragm 22 in the pilot valve 2 is greater than the pressure in the left brake pipe 52. At this time, the first valve 23 is closed, the second valve 25 is opened, and the volume chamber 24 of the pilot valve 2 is communicated with the atmosphere.
Therefore, when the truck vehicle is in the first state and the truck is inflated, after the locomotive driver operates the inflation button, the pressure of the brake pipe 52 starts to rise, and as the pressure of the brake pipe 52 rises, the pressure on the left side of the diaphragm 22 in the pilot valve 2 increases, so that the diaphragm 22 moves to the right side, the first valve 23 opens, the second valve 25 closes, the volume chamber 24 of the pilot valve 2 is communicated with the control chamber 51, the pressure in the control chamber 51 decreases, so that the truck vehicle is not in the pressure overcharged state, and the truck vehicle achieves automatic relief.
When the truck vehicle is in the second state and the truck is inflated, after the locomotive driver operates the inflation button, the pressure of the brake pipe 52 starts to rise, and along with the pressure rise of the brake pipe 52, the pressure on the left side of the diaphragm 22 in the pilot valve 2 increases, so that the diaphragm 22 moves towards the right side, and finally the first valve 23 is opened, and the second valve 25 is closed; finally, the volume chamber 24 of the pilot valve 2 communicates with the control chamber 51. Due to the increase of the total volume, the pressure in the control chamber 51 is reduced, so that the truck is not in a pressure over-charging state, and automatic relief is achieved.
The device for eliminating the over-charging pressure of the truck can automatically change the volume of the control chamber according to the actual condition, and can automatically reduce the pressure of the control chamber when the pressure of the control chamber is too high, so that the aim of automatic relief is fulfilled.
For example, when a locomotive with the air supply pressure of 550KPa is replaced by a locomotive with the air supply pressure of 500KPa, the volume of the control chamber can be automatically increased through the operation of a locomotive cab driver, so that the pressure in the control chamber is reduced, and the truck vehicle can meet the requirement of automatic release. Therefore, the labor intensity of workers is reduced, the vehicle stopping time is reduced, and the condition that the vehicle slides without being relieved due to negligence of the workers is avoided. Meanwhile, the improvement of the vehicle is easy, and the normal and safe operation of the truck can be ensured.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (5)
1. An apparatus for eliminating the over-inflation of a truck, the apparatus comprising:
the valve seat is internally provided with a pilot valve;
a stud disposed at one end of the valve seat;
one side of the valve seat is connected with a control valve bracket of the truck through one end of the stud;
the other side of the valve seat is connected with a control valve of the truck through the other end of the stud bolt, so that a first interface of the valve seat is connected with a control chamber of the control valve, a second interface of the valve seat is connected with a brake pipe of the control valve, a third interface of the valve seat is connected with a brake cylinder of the control valve, and a fourth interface of the valve seat is connected with an auxiliary air cylinder of the control valve; wherein,
when the truck is inflated, the pressure of the brake pipe of the control valve rises to enable the volume chamber of the pilot valve to be communicated with the control chamber, the pressure of the control chamber is reduced, and the pressure over-inflation of the truck is automatically eliminated.
2. The device of claim 1, wherein one end of the stud is provided with a spring washer and a nut, and the stud is connected with a control valve bracket of the truck through the nut.
3. The apparatus of claim 1, wherein the pilot valve comprises:
the valve body is provided with a diaphragm plate;
one end of the first valve is connected with one end of the valve body, and the other end of the first valve is connected with one end of the volume chamber of the pilot valve;
and one end of the second valve is connected with the other end of the valve body, and the other end of the second valve is connected with the other end of the volume chamber of the pilot valve.
4. The device of claim 2, wherein the tightening torque of the nut is 70-75N m.
5. The apparatus of claim 1, wherein the fifth port of the valve seat is connected to the control chamber port of the control valve carrier; the sixth interface of the valve seat is connected with the brake pipe interface of the control valve bracket; the seventh port of the valve seat is connected with the brake cylinder port of the control valve bracket; and the eighth interface of the valve seat is connected with the auxiliary reservoir interface of the control valve bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510603604.XA CN105172833B (en) | 2015-09-21 | 2015-09-21 | It is a kind of to eliminate the device that lorry pressure is overcharged |
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| CN201510603604.XA CN105172833B (en) | 2015-09-21 | 2015-09-21 | It is a kind of to eliminate the device that lorry pressure is overcharged |
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| Publication Number | Publication Date |
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| CN105172833A CN105172833A (en) | 2015-12-23 |
| CN105172833B true CN105172833B (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510603604.XA Active CN105172833B (en) | 2015-09-21 | 2015-09-21 | It is a kind of to eliminate the device that lorry pressure is overcharged |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824201B (en) * | 2020-07-16 | 2021-07-16 | 中车株洲电力机车有限公司 | Locomotive brake overcharge control method and device |
| CN112078625B (en) * | 2020-09-24 | 2022-04-08 | 中车株洲电力机车有限公司 | Control system and control method for eliminating overcharge of three-pressure mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086773A (en) * | 1993-05-13 | 1994-05-18 | 沈阳铁路局锦州科学技术研究所 | Locomotive braking control device |
| CN201761483U (en) * | 2010-09-03 | 2011-03-16 | 徐晖 | Brake system for railroad locomotive |
| CN201769817U (en) * | 2010-07-07 | 2011-03-23 | 南车株洲电力机车有限公司 | 109-type distributing valve |
| CN102390371A (en) * | 2011-09-28 | 2012-03-28 | 北京二七轨道交通装备有限责任公司 | Braking control device and braking system for railway vehicle and railway vehicle |
| CN104245450A (en) * | 2012-03-09 | 2014-12-24 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Monitor for brake actuator pressure and method for monitoring brake actuator pressure |
| CN204956458U (en) * | 2015-09-21 | 2016-01-13 | 南车长江车辆有限公司 | Eliminate freight train pressure and cross device that fills |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5047107U (en) * | 1973-08-28 | 1975-05-10 |
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- 2015-09-21 CN CN201510603604.XA patent/CN105172833B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086773A (en) * | 1993-05-13 | 1994-05-18 | 沈阳铁路局锦州科学技术研究所 | Locomotive braking control device |
| CN201769817U (en) * | 2010-07-07 | 2011-03-23 | 南车株洲电力机车有限公司 | 109-type distributing valve |
| CN201761483U (en) * | 2010-09-03 | 2011-03-16 | 徐晖 | Brake system for railroad locomotive |
| CN102390371A (en) * | 2011-09-28 | 2012-03-28 | 北京二七轨道交通装备有限责任公司 | Braking control device and braking system for railway vehicle and railway vehicle |
| CN104245450A (en) * | 2012-03-09 | 2014-12-24 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Monitor for brake actuator pressure and method for monitoring brake actuator pressure |
| CN204956458U (en) * | 2015-09-21 | 2016-01-13 | 南车长江车辆有限公司 | Eliminate freight train pressure and cross device that fills |
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| CN105172833A (en) | 2015-12-23 |
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Address after: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Applicant after: CRRC YANGTZE CO., LTD. Address before: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Applicant before: China South Locomotive & Rolling Stock Changjiang Vehicle Company |
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