CN203365126U - An empty-vehicle safety valve test apparatus - Google Patents
An empty-vehicle safety valve test apparatus Download PDFInfo
- Publication number
- CN203365126U CN203365126U CN 201320429338 CN201320429338U CN203365126U CN 203365126 U CN203365126 U CN 203365126U CN 201320429338 CN201320429338 CN 201320429338 CN 201320429338 U CN201320429338 U CN 201320429338U CN 203365126 U CN203365126 U CN 203365126U
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- safety valve
- valve
- hole
- joint
- test unit
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Abstract
The utility model relates to an empty-vehicle safety valve test apparatus. The empty-vehicle safety valve test apparatus is characterized by comprising a bracing frame, a volume air reservoir, a safety valve joint, a pressure-regulating valve, a rotary valve, a pressure gauge, and several pipelines used for connection. A work bench is arranged on the top portion of the bracing frame. A first installation through hole, a second installation through hole, and a third installation through hole are arranged on the work bench at intervals. The safety valve joint is arranged inside the first installation through hole. A first branch pipeline, a second branch pipeline, and a third branch pipeline are in parallel connection on a bottom joint port portion of a joint head of the safety valve joint. An outer end portion of the first branch pipeline is connected with the volume air reservoir. An outer end portion of the second branch pipeline goes through the second installation through hole to be connected with the pressure gauge. An outer end portion of the third branch pipeline is connected with a wind source. The pressure-regulating valve and the rotary valve are sequentially in series connection in the pipeline between the wind source and the safety valve joint. The rotary valve is arranged inside the third installation through hole in a fixed mode. The empty-vehicle safety valve test apparatus of the utility model can be widely applied to tests of railway freight car safety valves.
Description
Technical field
The utility model relates to a kind of braking device test unit, particularly about a kind of empty wagon safety valve test unit that is applicable to railway freight-car.
Background technology
Empty wagon safety valve (hereinafter to be referred as " safety valve ") is for the empty and load brake equipment of railway freight-car automatic braker, be assembled on the connecting pipeline of checking cylinder and step-down reservoir, when the empty wagons brake-cylinder pressure is too high, the pressure air of getting rid of checking cylinder, and then the pressure of control checking cylinder, prevent empty wagons wiping wheel.The safety valve action principle is the level pressure that checking cylinder surpasses regulation, and by the pressure air of checking cylinder, discharged to atmosphere, before cylinder pressure air to be braked is down to 160kPa, safety valve stops exhaust.Good in order to ensure railway freight-car empty wagons braking ability, before the safety valve entrucking, should make a service test.At present, the safety valve test device can be divided into two classes, and a class formation is simple and easy, but its complicated operation can not meet the requirement of safety valve performance test fully; Another kind of safety valve assembling need to being got on the bus just can be tested afterwards, if the safety valve performance is undesirable like this, needs the operator to reprocess, the work efficiency reduction; Also may affect braking ability after the safety valve entrucking, cause railway freight-car empty wagons security of operation hidden danger.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of safety valve test device of simple in structure and easy to operate, pressure stability.
For achieving the above object, the utility model is taked following technical scheme: a kind of empty wagon safety valve test unit is characterized in that: it comprises a bracing frame, a volume reservoir, a safety valve joint, a pressure regulator valve, single-revolution valve, a tensimeter and some connecting pipes road; The support frame as described above top arranges a worktable, is arranged at intervals with first to the 3rd on described worktable through hole is installed, and described safety valve joint is arranged on described first and installs in through hole, and described safety valve joint bottom interface place first to the 3rd bye-pass that is connected in parallel; The outer end of described the first bye-pass connects described volume reservoir; The outer end of described the second bye-pass is installed through hole through described second and is connected described tensimeter; The outer end of described the 3rd bye-pass connects a wind regime, on the pipeline between described wind regime and described safety valve joint, is connected in series successively described pressure regulator valve and revolving valve, and described revolving valve is fixedly installed on the described the 3rd and installs in through hole.
Single-revolution valve operating grip is set on described revolving valve, and is arranged at intervals with on described revolving valve and fills soon wind, trickle charge wind, pressurize and gears are controlled in four of air drafts.
Support frame as described above comprises four spaced supporting legs, and described worktable is fixedly installed on four described supporting leg tops, and four described supporting leg bottoms are welded with base plate, between each adjacent described supporting leg, is provided with horizontal and vertical reinforcement gusset.
Described manometric precision adopts 1.5 grades, and range is 0～400kPa, and described manometric dial plate is that 170kPa and 190kPa reading place are provided with mark line at pressure.
The range of regulation of described pressure regulator valve is 100kPa～400kPa, and the volume of described volume reservoir adopts 17L.
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the utility model comprises bracing frame, volume reservoir, safety valve joint, pressure regulator valve, revolving valve, tensimeter and some connecting pipes road, only be provided with safety valve, revolving valve and tensimeter on worktable, and other parts such as volume reservoir, pressure regulator valve, connecting line all are arranged on below worktable, install simple and convenient, compare with the existing rear process that just can be tested of the safety valve assembling need to being got on the bus, effectively improved work efficiency.2, the utility model, owing on the 3rd bye-pass of wind regime and safety valve joint, being connected a pressure regulator valve, can be adjusted into 200～300kPa by air intake pressure, and can keep pressure stability, so the utility model pressure stability.3, the utility model will fill on wind, trickle charge wind, pressurize and four control gear concentrated setting revolving valves of air draft soon, and suitable while filling wind speed degree and railway wagon brake, therefore can by revolving valve, to the braking ability of safety valve, be tested easily, compact conformation, practicality are good.4, the utility model is provided with tensimeter on worktable, therefore can to the pressure in the safety valve test process, be monitored easily.The utility model can be widely used in the performance test of railway freight-car safety valve.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model test unit;
Fig. 2 is the structural representation of the utility model bracing frame;
Fig. 3 is the schematic top plan view of the utility model bracing frame;
Fig. 4 is the control gear positions schematic diagram of the utility model revolving valve.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figures 1 to 3, empty wagon safety valve test unit of the present utility model comprises a bracing frame 1, a volume reservoir 2, a safety valve joint 3, a pressure regulator valve 4, single-revolution valve 5, a tensimeter 6 and some connecting pipes road.
In a preferred embodiment, as shown in Figure 4, for convenient, revolving valve 5 is rotated to operation, single-revolution valve operating grip is set on revolving valve 5.Suitable in order to make to fill wind speed degree and railway wagon brake, revolving valve 5 is arranged at intervals with and fills soon wind, trickle charge wind, pressurize and four of air drafts and control gears.Four particular locations of controlling gear of revolving valve 5 are not construed as limiting, and can be set according to actual needs, but require easy to operate.In the present embodiment, four of revolving valve 5 control gears are arranged as counterclockwise and fill soon wind 51, trickle charge wind 52, pressurize 53 and air draft 54.Four effects of controlling gear of revolving valve 5 are respectively: control gear when filling soon wind 51 or trickle charge wind 52 when revolving valve 5, the state of the 3rd bye-pass 73 in the charged pressure air, just fill wind speed degree speed difference; Revolving valve 5 is controlled gear when pressurize 53, cuts off the path of revolving valve 5 pressure at both sides air in the 3rd bye-pass, but now all there is pressure air revolving valve 5 both sides; Revolving valve 5 is controlled gear when air draft 54, cut off the path of revolving valve 5 pressure at both sides air in the 3rd bye-pass, the pressure air that now retains revolving valve 5 one sides (between revolving valve and wind regime), discharge the pressure air of revolving valve opposite side, when the empty wagon safety valve test unit is not worked, the control gear of revolving valve 51 is set to air draft 54.
In a preferred embodiment, as shown in Figure 2 and Figure 3, bracing frame 1 comprises four spaced supporting legs 13, worktable 11 is fixedly installed on four supporting leg 13 tops, and four supporting leg 13 bottoms are welded with base plate 14, and base plate 14 is for placing volume reservoir 2, in order to strengthen the intensity of bracing frame, be provided with horizontal and vertical reinforcement gusset between each adjacent support legs 13, also each connecting line can be fixed with strengthening gusset, prevent that each connecting line from rocking.Bracing frame 1 can adopt the structural section assembly welding of different size to form, and to meet the strength and stiffness requirement of test unit, worktable 2 can adopt 4mm, 6mm or 8mm steel plate to make according to actual needs.
In a preferred embodiment, volume reservoir 2 volumes are identical with the step-down reservoir volume of railway freight-car, have when keeping the safety valve air draft a certain amount of pressure air to discharge, and the volume of volume reservoir 2 can adopt 17L.
In a preferred embodiment, the range of regulation of pressure regulator valve 4 is 100kPa～400kPa.
In a preferred embodiment, the precision of tensimeter 6 can adopt 1.5 grades, and range is 0～400kPa, and in order to allow operating personnel can clearly see the indicated value of tensimeter 6, the tensimeter dial plate is that 170kPa and 190kPa reading place are provided with mark line at pressure.
In a preferred embodiment, pipeline can adopt steel pipe, elbow or the threeway of DN20 to be connected.
The using method of empty wagon safety valve test unit of the present utility model comprises the following steps:
1, a safety valve to be detected is fixedly connected on safety valve joint 3, checks that must not there be leakage both junctions.
2, after confirming the sealing of safety valve junction, open wind regime, it is 200～300kPa that adjustment pressure regulator valve 4 makes the initial air intake pressure of the 3rd bye-pass, then enter step 3, the concrete numerical value of initial air intake pressure is not construed as limiting and can be set according to test, but should be less than or equal to 300kPa, if easily make safety valve or tensimeter 6 damage after being greater than 300kPa.
3, rotating the revolving valve handle makes its control gear be placed in and fill soon wind 51 from air draft 54, safety valve is carried out to braking ability test, while by tensimeter 6 monitoring safety valve pressures, reaching 190kPa, safety valve 6 should start air draft, if not carrying out air draft, safety valve thinks that this safety valve is defective, if safety valve air draft enter step 4.
4, rotating the revolving valve handle makes its control gear be placed in pressurize 53 by filling soon wind 51, while by tensimeter 6 monitoring safety valve pressures, being 160kPa or 170kPa, (newly making safety valve is 170kPa, the maintenance safety valve is 160kPa), safety valve should stop air draft, if now safety valve continues air draft, think that this safety valve is defective, if safety valve stops air draft, enter step 5.
5, adopt hairbrush that antirust leak-checking agent is smeared to each position of safety valve safety valve is detected, sew if safety valve is learnt in detection, think that this safety valve is defective, if safety valve is no-leak, enter step 6.
6, rotating the revolving valve handle makes its control gear be placed in trickle charge wind 52 by pressurize 53, while by tensimeter 6, monitoring safety valve pressures to 180kPa, control file location while rotating again the revolving valve handle in pressurize 53, adopting hairbrush that antirust leak-checking agent is smeared to each position of safety valve is detected, if now safety valve is sewed, think that this safety valve is defective, if safety valve is no-leak, enter step 7.
7, after safety valve test, rotate the revolving valve handle and make its control gear be placed in air draft 54, whole empty wagon safety valve test unit is carried out to air draft, after air draft, pull down safety valve.Qualified safety valve is put into to the certified products district, can come into operation, defective safety valve is put into to NonConforming Parts Area, tested again after defective safety valve is returned something for repairs, just can come into operation after stand the test.
Above-described embodiment is only for illustrating the utility model; wherein step of the structure of each parts, connected mode and implementation method etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (7)
1. an empty wagon safety valve test unit, it is characterized in that: it comprises a bracing frame, a volume reservoir, a safety valve joint, a pressure regulator valve, single-revolution valve, a tensimeter and some connecting pipes road; The support frame as described above top arranges a worktable, is arranged at intervals with first to the 3rd on described worktable through hole is installed, and described safety valve joint is arranged on described first and installs in through hole, and described safety valve joint bottom interface place first to the 3rd bye-pass that is connected in parallel; The outer end of described the first bye-pass connects described volume reservoir; The outer end of described the second bye-pass is installed through hole through described second and is connected described tensimeter; The outer end of described the 3rd bye-pass connects a wind regime, on the pipeline between described wind regime and described safety valve joint, is connected in series successively described pressure regulator valve and revolving valve, and described revolving valve is fixedly installed on the described the 3rd and installs in through hole.
2. a kind of empty wagon safety valve test unit as claimed in claim 1 is characterized in that: single-revolution valve operating grip is set on described revolving valve, and is arranged at intervals with on described revolving valve and fills soon wind, trickle charge wind, pressurize and four of air drafts and control gears.
3. a kind of empty wagon safety valve test unit as claimed in claim 1, it is characterized in that: support frame as described above comprises four spaced supporting legs, described worktable is fixedly installed on four described supporting leg tops, four described supporting leg bottoms are welded with base plate, between each adjacent described supporting leg, are provided with horizontal and vertical reinforcement gusset.
4. a kind of empty wagon safety valve test unit as claimed in claim 2, it is characterized in that: support frame as described above comprises four spaced supporting legs, described worktable is fixedly installed on four described supporting leg tops, four described supporting leg bottoms are welded with base plate, between each adjacent described supporting leg, are provided with horizontal and vertical reinforcement gusset.
5. a kind of empty wagon safety valve test unit as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: described manometric precision adopts 1.5 grades, range is 0～400kPa, and described manometric dial plate is that 170kPa and 190kPa reading place are provided with mark line at pressure.
6. a kind of empty wagon safety valve test unit as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: the range of regulation of described pressure regulator valve is 100kPa～400kPa, the volume of described volume reservoir adopts 17L.
7. a kind of empty wagon safety valve test unit as claimed in claim 5, it is characterized in that: the range of regulation of described pressure regulator valve is 100kPa～400kPa, the volume of described volume reservoir adopts 17L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320429338 CN203365126U (en) | 2013-07-18 | 2013-07-18 | An empty-vehicle safety valve test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320429338 CN203365126U (en) | 2013-07-18 | 2013-07-18 | An empty-vehicle safety valve test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365126U true CN203365126U (en) | 2013-12-25 |
Family
ID=49812872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320429338 Expired - Fee Related CN203365126U (en) | 2013-07-18 | 2013-07-18 | An empty-vehicle safety valve test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344428A (en) * | 2013-07-18 | 2013-10-09 | 南车二七车辆有限公司 | Empty wagon safety valve test device and use method thereof |
-
2013
- 2013-07-18 CN CN 201320429338 patent/CN203365126U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344428A (en) * | 2013-07-18 | 2013-10-09 | 南车二七车辆有限公司 | Empty wagon safety valve test device and use method thereof |
| CN103344428B (en) * | 2013-07-18 | 2016-01-20 | 南车二七车辆有限公司 | A kind of using method of empty wagon safety valve test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20180718 |