CN201800730U - Empty and load valve for rolling stock - Google Patents
Empty and load valve for rolling stock Download PDFInfo
- Publication number
- CN201800730U CN201800730U CN2010205528162U CN201020552816U CN201800730U CN 201800730 U CN201800730 U CN 201800730U CN 2010205528162 U CN2010205528162 U CN 2010205528162U CN 201020552816 U CN201020552816 U CN 201020552816U CN 201800730 U CN201800730 U CN 201800730U
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- 238000005096 rolling process Methods 0.000 title abstract 4
- 230000000694 effects Effects 0.000 claims description 9
- 238000013461 design Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model provides an empty and load valve for rolling stock, which comprises a weight sensing device with an indicating protuberance capable of moving with different weight, and a pressure regulation device comprising a first piston, a second piston, and a lever, wherein one end of the first piston connects to the lever, the other end of the first piston is provided with a pressure cylinder which can push the first piston along axial direction; one end of the second piston connects to the lever, and the other end of the second piston is provided with a brake cylinder which is opened and closed under the influence of the second piston; the lever contacts with the indicating protuberance to form a contacting point; and the lever swings under the influence of the first piston and the second piston, with the contacting point serving as a fulcrum. The empty and load valve for rolling stock can realize steeples adjustment and prevent great longitudinal impulse generated by a rolling stock during adjustment.
Description
Technical field
The utility model relates to a kind of brake equipment, relates in particular to a kind of railway vehicle bare weight valve.
Background technology
Increasing load-carrying, reducing deadweight is to improve one of effective way of railway transport capacity.Along with the reduction of railway vehicle deadweight and the increasing of load-carrying, the vehicle bare weight is than further strengthening, if will guarantee that under the situation of high-speed overload loaded vehicle has enough braking forces, car can stop in the distance of regulation; It is too big that the empty wagons braking force is unlikely to, and prevents wheel lockup, causes wheel tread flat, and then empty and load brake equipment is essential.Simultaneously, the raising of speed is accompanied by the increasing of Vehicular vibration, and the empty and load brake equipment performance demands is also improved thereupon.
Railway vehicle mainly is made up of car body, traveling portion, brake equipment, coupler and draft gear and vehicle interior.Fig. 1 is a railway vehicle braking systematic schematic diagram in the prior art.As shown in Figure 1, the bare weight valve is the vitals of brake equipment, mainly be the restriction brake-cylinder pressure of vehicle under complete vehicle curb condition, can be according to the variation of vehicle weight, the pressure air that control cock is come, by shunting or form such as dam, provide different brake-cylinder pressures, obtain different empty and load brake shoe pressures by lever system again, to satisfy the needs that stop, and can prevent wheel lockup, the flat wheel tread.
According to the different load-carryings of vehicle, brake-cylinder pressure can be adjusted to different progression, then the bare weight valve can be divided into single-stage (not adjusting) according to this, two-stage (adjust once), three grades or multistage (adjust twice or repeatedly) are until stepless adjustment.Fig. 2 is that the brake percentage of bare weight valve not at the same level is than scheme drawing.In Fig. 2, braking ratio is the brake shoe pressure of vehicle unit weight, and the brake shoe pressure that equals gross vehicle is divided by vehicle weight.Various as seen from Figure 2 empty and load braking ratio it can also be seen that with the variation of vehicle weight along with the increase of adjusting progression, the car brakeing rate changes more and more steady.The car brakeing rate changes steadily, can effectively reduce the longitudinal impulse between vehicle.
The bare weight valve of railway vehicle use mainly adopts two-stage, shunting adjustment mode in the world at present, it is exactly that the bare weight valve has only two states that so-called two-stage is adjusted the bare weight valve, be complete vehicle curb condition and loaded vehicle state, this type bare weight valve can not be according to the stepless adjustment brake-cylinder pressure of the variation of vehicle loading weight, the brake shoe pressure (braking ratio) that will cause vehicle unit weight to be obtained like this differs bigger, thereby causes bigger train longitudinal impulse.
The utility model content
At above-mentioned defective, the utility model provides a kind of railway vehicle bare weight valve, comprising:
Weight sensing device is provided with an indication projection, and described indication projection is moved because of the difference of weight;
Regulator comprises first piston, second piston and lever, and an end of described first piston is connected with described lever, and the other end is provided with and can promotes the pressure cylinder that described first piston moves vertically; One end of described second piston is connected with described lever, and the other end is provided with the brake cylinder that can open or close under the effect of described second piston; Described lever contacts with described indication projection, forms a contact point, and described lever can be a spot wobble with described contact point under the effect of described first piston, second piston.
Aforesaid railway vehicle bare weight valve, wherein, described weight sensing device comprises that also one is used to eliminate because of Vehicular vibration and causes the air damper that described indication projection moves.
Aforesaid railway vehicle bare weight valve, wherein, described regulator comprises that also one is used for the storage reservoir of pressure store gas.
The railway vehicle that the utility model provides bare weight valve, owing to comprise the regulator that adopts lever-type structure and be provided with the weight sensing device that can change balance pivot according to the variation of railway vehicle load-carrying, can realize stepless adjustment to brake cylinder, guarantee railway vehicle energy emergency under the loaded vehicle operating mode, wheel can be by locking under the empty wagons operating mode, flat wheel is not even can cause the bigger longitudinal impulse of railway vehicle simultaneously yet under the situation of empty wagons loaded vehicle shuffling.In addition,, effectively saved installing space, be very easy to design and maintenance because this bare weight valve integrates the check weighing voltage regulation function.
Description of drawings
Fig. 1 is a railway vehicle braking systematic schematic diagram in the prior art.
Fig. 2 is that the brake percentage of bare weight valve not at the same level is than scheme drawing.
Fig. 3 is the structural representation of the utility model railway vehicle with the bare weight valve.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer,, the technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing.
Fig. 3 is the structural representation of the utility model railway vehicle with the bare weight valve.As shown in Figure 3, railway vehicle comprises weight sensing device 100 and regulator 200 with the bare weight valve.Weight sensing device 100 is provided with an indication projection 110, and indication projection 110 differences because of weight are moved.Regulator 200 comprises first piston 210, second piston 220 and lever 230.An end that is specially first piston 210 is connected with lever 230, and the other end is provided with and can promotes the pressure cylinder 240 that first piston 210 moves vertically; One end of second piston 220 is connected with lever 230, and the other end is provided with the brake cylinder 250 that can open or close under the effect of second piston 220; Lever 230 contacts with indication projection 110, forms a contact point, and lever 230 can be a spot wobble with contact point under the effect of first piston 210, second piston 220.
When car brakeing, the pressure air that is come by control cock at first enters the pressure cylinder 240 that is arranged on first piston 210 right sides, under the pressure air effect in pressure cylinder 240, first piston 210 is moved to the left, the lever 230 that contacts with first piston 210 left ends under the impetus of first piston 210 with indication projection 110 be the fulcrum run-off the straight, thereby lever 230 applies to the right a thrust to second piston 220, promotes second piston 220 and moves right.Second piston 220 moves right, and opens control cock and leads to the valve port that is communicated with or turn-offs between the brake cylinder 250, and the pressure air of control cock charges into brake cylinder 250; Along with the rising of brake cylinder 250 inner air pressures, second piston 220 will be moved to the left under the effect of brake cylinder 250 pressure, restore balance until lever 230, and the valve port on second piston, 220 right sides is closed, and brake cylinder 250 enters packing state, and the pressure adjustment finishes.
When vehicle was alleviated, the pressure air in the pressure cylinder 240 on first piston 210 right sides reduced rapidly, has broken the state of equilibrium of lever 230.The end that lever 230 contacts with first piston 210 will be that fulcrum moves right with the contact point with indication projection 110, the balance of lever 230 both sides is broken, second piston 220 is moved to the left under the pressure effect of brake cylinder 250, the valve port on second piston, 220 right sides is open, and brake cylinder 250 internal pressure air are arranged to atmosphere.
According to the railway vehicle of the foregoing description bare weight valve, owing to comprise the regulator 200 that adopts lever-type structure and be provided with the weight sensing device 100 that can change lever 230 fulcrums according to the variation of railway vehicle load-carrying, can rest the head on the variation of spring height by bogie truck, the reflection vehicle weight, and change the position of lever 230 fulcrums according to the variation of this spring height, thereby realize stepless adjustment to brake cylinder 250, guarantee vehicle energy emergency under the loaded vehicle operating mode, wheel can be by locking under the empty wagons operating mode, flat wheel is not even can cause the bigger longitudinal impulse of train simultaneously yet under the situation of empty wagons loaded vehicle shuffling.In addition,, effectively saved installing space, be very easy to design and maintenance because this bare weight valve integrates the check weighing voltage regulation function.
Further, above-mentioned railway vehicle with the bare weight valve in, weight sensing device 100 comprises that also one is used to eliminate because of Vehicular vibration and causes indication projection 110 air dampers that move.As shown in Figure 3, air damper adopts the air damping principle design, comprises a piston, reverse flow hole and cavity.
According to the railway vehicle of the foregoing description bare weight valve, owing to be provided with air damper, can effectively reduce the influence that vehicle vibrates in operational process, effectively eliminate Vehicular vibration to of the influence of this railway vehicle, make that this railway vehicle is more reliable with bare weight valve, the pressure regulation precision is higher with bare weight valve pressure regulation precision.
Further, use in the bare weight valve at above-mentioned railway vehicle, regulator 200 comprises that also one is used for the storage reservoir of pressure store gas.
According to the railway vehicle of the foregoing description bare weight valve, adopt the shutoff type principle of design, by being provided for the storage reservoir of pressure store gas, unnecessary pressure air is dammed in the storage reservoir, can effectively save pressure air, avoided the waste of following pressure air: the bare weight valve is shunting adjustment mode in the prior art, promptly under complete vehicle curb condition, unnecessary pressure air in the brake cylinder is diverted in another step-down reservoir, thereby the air pressure of reduction brake cylinder reduces braking force; Pressure air unnecessary in the step-down reservoir finally can be drained, thus the waste of build-up of pressure air.This railway vehicle reduces the workload of railway vehicle air compressor with the bare weight valve, and in the railway vehicle of marshalling of growing up, this advantage is more obvious, has saved the energy effectively.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (3)
1. a railway vehicle bare weight valve is characterized in that, comprising:
Weight sensing device is provided with an indication projection, and described indication projection is moved because of the difference of weight;
Regulator comprises first piston, second piston and lever, and an end of described first piston is connected with described lever, and the other end is provided with and can promotes the pressure cylinder that described first piston moves vertically; One end of described second piston is connected with described lever, and the other end is provided with the brake cylinder that can open or close under the effect of described second piston; Described lever contacts with described indication projection, forms a contact point, and described lever can be a spot wobble with described contact point under the effect of described first piston, second piston.
2. railway vehicle bare weight valve according to claim 1 is characterized in that, described weight sensing device comprises that also one is used to eliminate because of the railway vehicle vibration and causes the air damper that described indication projection moves.
3. railway vehicle bare weight valve according to claim 1 and 2 is characterized in that, described regulator comprises that also one is used for the storage reservoir of pressure store gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205528162U CN201800730U (en) | 2010-09-29 | 2010-09-29 | Empty and load valve for rolling stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205528162U CN201800730U (en) | 2010-09-29 | 2010-09-29 | Empty and load valve for rolling stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201800730U true CN201800730U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205528162U Expired - Lifetime CN201800730U (en) | 2010-09-29 | 2010-09-29 | Empty and load valve for rolling stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201800730U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963767A (en) * | 2014-05-13 | 2014-08-06 | 四川制动科技股份有限公司 | Railway vehicle empty and load automatic adjusting valve of balance fulcrum type lever structure |
| CN104648370A (en) * | 2014-12-16 | 2015-05-27 | 齐齐哈尔轨道交通装备有限责任公司 | Empty and heavy vehicle adjustment valve for vehicle air braking system |
| CN106740773A (en) * | 2016-11-29 | 2017-05-31 | 中车齐齐哈尔车辆有限公司 | A kind of rolling stock and its weighing valve |
| CN114394071A (en) * | 2021-12-30 | 2022-04-26 | 国能铁路装备有限责任公司 | Railway train, empty and heavy vehicle adjusting device and method for electric braking system |
| CN115179915A (en) * | 2022-07-15 | 2022-10-14 | 眉山中车制动科技股份有限公司 | Railway vehicle braking empty-load two-stage weight measuring mechanism |
| CN117508261A (en) * | 2023-12-19 | 2024-02-06 | 沈阳西屋制动科技有限公司 | Controllable pressure regulating truck empty and heavy truck sensing valve |
-
2010
- 2010-09-29 CN CN2010205528162U patent/CN201800730U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963767A (en) * | 2014-05-13 | 2014-08-06 | 四川制动科技股份有限公司 | Railway vehicle empty and load automatic adjusting valve of balance fulcrum type lever structure |
| CN104648370A (en) * | 2014-12-16 | 2015-05-27 | 齐齐哈尔轨道交通装备有限责任公司 | Empty and heavy vehicle adjustment valve for vehicle air braking system |
| CN104648370B (en) * | 2014-12-16 | 2017-06-06 | 中车齐齐哈尔车辆有限公司 | The empty and load brake equipment of vehicle air brake systems |
| CN106740773A (en) * | 2016-11-29 | 2017-05-31 | 中车齐齐哈尔车辆有限公司 | A kind of rolling stock and its weighing valve |
| CN106740773B (en) * | 2016-11-29 | 2019-09-27 | 中车齐齐哈尔车辆有限公司 | A kind of rolling stock and its weighing valve |
| CN114394071A (en) * | 2021-12-30 | 2022-04-26 | 国能铁路装备有限责任公司 | Railway train, empty and heavy vehicle adjusting device and method for electric braking system |
| CN115179915A (en) * | 2022-07-15 | 2022-10-14 | 眉山中车制动科技股份有限公司 | Railway vehicle braking empty-load two-stage weight measuring mechanism |
| CN117508261A (en) * | 2023-12-19 | 2024-02-06 | 沈阳西屋制动科技有限公司 | Controllable pressure regulating truck empty and heavy truck sensing valve |
| CN117508261B (en) * | 2023-12-19 | 2025-08-26 | 沈阳西屋制动科技有限公司 | Controllable pressure regulating truck empty and load sensing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee after: CRRC QIQIHAR VEHICLE CO., LTD. Address before: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee before: Qiqihar Railway Rolling Stock Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
|
| CX01 | Expiry of patent term |