CN103253279B - Bottom door opening and closing system - Google Patents
Bottom door opening and closing system Download PDFInfo
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- CN103253279B CN103253279B CN201310189889.8A CN201310189889A CN103253279B CN 103253279 B CN103253279 B CN 103253279B CN 201310189889 A CN201310189889 A CN 201310189889A CN 103253279 B CN103253279 B CN 103253279B
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Abstract
The present invention discloses a kind of bottom door opening and closing system, comprises bottom door opening and closing mechanism, touching platform is opened the door on ground and close the door touching platform in ground; Bottom door opening and closing system provided by the invention, opened the door by the first switch gate arm or second switch gate arm and ground and touch platform and ground and to close the door touching platform, thus control hopper wagon bottom door opening and closing, turn arbitrarily when vehicle can be made to use, avoid a single side wheel to abrasion serious problems, thus can wheel life be improved, reduce vehicle maintenance cost, reduce maintenance time, and substantially increase comformability and the alerting ability of the railway hopper car of employing " mechanical collision self lighting type " bottom door opening and closing system.
Description
Technical field
The present invention relates to hopper car technical field, particularly a kind of bottom door opening and closing system.
Background technology
Railway hopper car is mainly used in the transport of the loose shape goods such as bulk grain, rock ballast, coal, the shape goods that falls apart during unloading relies on self gravitation effect automatically to flow out from the bottom door of hopper car, and its shipping mass is higher, can shorten duration of handling, accelerating vehicle turnover, improve handling labor condition, reduce traffic cost.Bottom door opening and closing mechanism is the critical component ensureing that railway hopper car is normally unloaded, should opening and closing operations power just, stable performance, there is corresponding auto-lock function again, avoid in transportation because the reason generation bottom doors such as vibration are opened from the bottom door mal opened or cause due to other factors.
Existing " mechanical collision self lighting type " bottom door opening and closing mechanism just possesses above feature, and dresses a large amount of on railway hopper car at home and abroad is at present used.Adopt and must to ensure during the unloading of the hopper car of " mechanical collision self lighting type " bottom door opening and closing mechanism that a direction running coordinates with surface facility and open and close the end and open the door, vehicle can not be turned (if turned, vehicle can not enter unloading apron unloading, because bottom door opening and closing mechanism cannot with surface facility compounding practice, open bottom door), like this along with the increase of operate time and frequency continues to increase generation eccentric wear phenomenon a single side wheel, wheel life is reduced greatly, not only adds cost to vehicle maintenance and also reduce vehicle service efficiency.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of bottom door opening and closing system.
For solving the problems of the technologies described above, the invention provides bottom door opening and closing system, it comprises
Open the door touching platform for bottom door opening and closing mechanism and ground;
Described bottom door opening and closing mechanism, comprises transmission shaft, toggle linkage, first connecting rod, second connecting rod, the first switch gate arm, second switch gate arm and bottom door; Described transmission shaft is fixedly connected with vehicle frame; Described toggle linkage is arranged on described transmission shaft; One end of described first connecting rod and second connecting rod is hinged with described toggle linkage respectively, and the other end is hinged with the outside of corresponding bottom door respectively; Described bottom door side is hinged on bottom hopper car; Described first switch gate arm, second switch gate arm are arranged on described transmission shaft two ends respectively; Described bottom door, first connecting rod, second connecting rod and toggle linkage form four-bar linkage;
Touching platform is opened the door for when hopper car travels in described ground, touch with the enabling handle of described first switch gate arm or second switch gate arm, make enabling handle generation cw or the left-hand revolution of the first switch gate arm or second switch gate arm, thus make described four-bar linkage cross dead point, cause the bottom door of hopper car to be opened;
Bottom door opening and closing system provided by the invention, opened the door by the first switch gate arm or second switch gate arm and ground and touch platform, thus control hopper wagon bottom door is opened, turn arbitrarily when vehicle can be made to use, avoid a single side wheel to abrasion serious problems, thus can wheel life be improved, reduce vehicle maintenance cost, reduce maintenance time, and substantially increase comformability and the alerting ability of the railway hopper car of employing " mechanical collision self lighting type " bottom door opening and closing system.Accompanying drawing explanation
The structural representation of the bottom door opening and closing mechanism that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the bearing composition that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the preloading spring composition that Fig. 3 provides for the embodiment of the present invention;
The structural representation for carrying out spacing inhibiting device to pass door handle that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the ground enabling touching platform that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is for ground that the embodiment of the present invention provides closing the door the structural representation of touching platform;
The structural representation of the first switch gate arm that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the second switch gate arm that Fig. 8 provides for the embodiment of the present invention.
Detailed description of the invention
A kind of bottom door opening and closing system that the embodiment of the present invention provides, comprises bottom door opening and closing mechanism, touching platform is opened the door on ground and close the door touching platform in ground.Wherein, see Fig. 1, the bottom door opening and closing mechanism that the embodiment of the present invention provides, comprises transmission shaft 1, toggle linkage 2, first connecting rod 5, second connecting rod 6, first switch gate arm 7, second switch gate arm 8 and bottom door 9; Transmission shaft 1 is fixedly connected with vehicle frame; Toggle linkage 2 is welded on transmission shaft 1; One end of first connecting rod 5 and second connecting rod 6 is hinged with toggle linkage 2 respectively, and the other end is hinged with the outside folding of corresponding bottom door 9 respectively; Bottom door 9 side to be hinged on bottom hopper car on bottom door folding seat; First switch gate arm 7, second switch gate arm 8 are arranged on transmission shaft 1 two ends respectively; Bottom door 9, first connecting rod 5, second connecting rod 6 and toggle linkage 2 form four-bar linkage.Toggle linkage 2 can be " S " type.First switch gate arm 7 comprises enabling handle 7a and closes door handle 7b.Enabling handle 7a and pass door handle 7b is respectively arranged with roller.Enabling handle 7a and pass door handle 7b is fixedly connected with transmission shaft 1 respectively.Second switch gate arm 8 comprises enabling handle 8a and closes door handle 8b.Enabling handle 8a and pass door handle 8b is respectively arranged with roller.Enabling handle 8a and pass door handle 8b is fixedly connected with transmission shaft 1 respectively.See Fig. 8, the enabling handle 8a of the second enabling arm and the angle β closed between door handle 8b is greater than 100 ° and is less than 160 °.See Fig. 7, the enabling handle 8a that the enabling handle 7a of the first enabling arm and the angle α closed between door handle 7b is greater than the second enabling arm and the angle β closed between door handle 8b, and be less than 160 °.The height of enabling handle 7a and the transversion malposition between pass door handle 7b, enabling handle 8a and pass door handle 8b is 60mm ~ 100mm.Such parameter designing, ensure that opens the door with ground touches platform, close the door in ground touch platform coordinate requirement, actv. is avoided when bottom door opens the door, and closes door handle and ground and opens the door and touch the contact of platform, avoiding at bottom door at closing time, closes the door and touches the contact of platform in enabling handle and ground.
Bottom door opening and closing mechanism also comprises the bearing composition of the end being separately positioned on hopper car.See Fig. 2, bearing composition comprises: boatswain chair 10 and bearing 11; Boatswain chair 10 is fixedly connected with bearing 11; Boatswain chair 10 is connected with the end winding support of hopper car; Transmission shaft 1 one end through bearing 11 and the first switch gate arm enabling handle 7a and close door handle 7b and be connected, the other end passes the enabling handle 8a of bearing 11 and second switch gate arm and closes door handle 8b and be connected.Bearing composition also comprises: the first strut member 16, second strut member 17, the 3rd strut member 18, first adjust backing plate 12 and the second adjustment backing plate 13; First adjustment backing plate 12 and the second adjustment backing plate 13 are arranged on boatswain chair 10; First adjustment backing plate 12 and the second adjustment backing plate 13 comprise bearing 15 and rubber stop 14 respectively, and bearing 15 is fixedly installed on boatswain chair 10, and rubber shelves 14 are fixedly connected with bearing 15.First strut member 16 is connected to bottom hopper car and between the rubber stop 14 of the first adjustment backing plate 12; Second strut member 17 is connected to bottom hopper car and between the rubber stop 14 of the second adjustment backing plate 13; 3rd strut member 18 is connected to bottom hopper car and between boatswain chair 10.The door shield that bottom door opening and closing mechanism also comprises boatswain chair 10 side being separately positioned on bearing composition supports 3b, and this door shield supports 3b and is used for, when bottom door unlatching puts in place, contacting, support bottom door with bottom door.
Bottom door opening and closing mechanism also comprises the preloading spring composition of the predetermincd tension for realizing bottom door locking, and preloading spring composition is arranged on the lower side panel of car body.See Fig. 3, preloading spring composition comprises U-shaped frame 22, preloading spring 23 and push rod 24.Early warning spring is arranged in U-shaped frame 22, and is connected with push rod 24 by pad 26.Early warning spring 23 one end is connected with a frame of U-shaped frame 22, and another side is connected with pad 26.Push rod 24 through pad 26 and U-shaped frame 22, and is fixed by nut.When bottom door is closed completely, push rod 24 contacts with the door-plate block 25 of bottom door, realizes the predetermincd tension of bottom door locking.
Bottom door opening and closing mechanism also comprises for carrying out spacing inhibiting device to pass door handle 7b and carrying out spacing inhibiting device to pass door handle 8b.Wherein, close door handle 7b to carry out spacing inhibiting device and comprise: limiting block 7c and adjustment bolt 3a; Limiting block 7c is arranged on and closes on door handle 7b.Adjustment bolt 3a is arranged on boatswain chair 10 by a block.Close door handle 8 and also comprise limiting block 8c and adjustment bolt; Limiting block 8c is arranged on and closes on door handle 8b.Adjustment bolt 3a is arranged on boatswain chair 10 by a block 19.
See Fig. 5, opening the door and touch platform in ground is can be " 7 " type structure.The section angle δ of ground enabling touching platform 20 is less than 20 °, notch length h=150mm ~ 300mm for being greater than 15 °.See Fig. 6, close the door and touch the parallel misalignment design of platform employing inclined-plane, rectangular triangle or ladder structure of right angle in ground, and end is provided with elastomeric element.Elastomeric element is hydraulic actuating cylinder or spring 22.Ground close the door touching platform 21 section angle γ be less than 18 ° for being greater than 11 °, horizontal parallel misalignment h '=50mm ~ 100mm.Such parameter designing, for guarantee with the first switch gate arm 7, second switch gate arm 8 coordinate requirement, actv. ensure that the particularity that bottom door opens and closes.Ground open the door touching platform 20 can one or more be set, and ground close the door touching platform 21 can be set to 1.
Touching platform is opened the door for when hopper car travels in ground, touch with the enabling handle of the first switch gate arm 7 or second switch gate arm 8, make enabling handle generation cw or the left-hand revolution of the first switch gate arm 7 or second switch gate arm 8, transmission shaft, toggle linkage, first connecting rod and second connecting rod are moved thereupon, thus opens the bottom door of hopper car.Touching platform is closed the door for when hopper car travels in ground, touch with the pass door handle of the first switch gate arm or second switch gate arm, make pass door handle generation cw or the left-hand revolution of the first switch gate arm or second switch gate arm, transmission shaft, toggle linkage, first connecting rod and second connecting rod are moved thereupon, thus the bottom door of hopper car is closed.When bottom door is closed completely, first connecting rod and second connecting rod and bottom door form hinged center and center transmission shaft at same level on, first connecting rod and second connecting rod and toggle linkage hinged in be formed centrally eccentric throw, cross dead point and goods and bottom door deadweight by four-bar linkage and realize bottom door one-level auto-lock function.
Embodiment one
Be arranged on the left side of car body below in conjunction with the first switch gate arm 7, second switch gate arm 8 is arranged on the right side of car body.The enabling handle of the first switch gate arm 7 and second switch gate arm 8 is described in front, the principle of work of the pass posterior embodiment of door handle to bottom door opening and closing system provided by the invention.
When vehicle end drives in the front, ground enabling touching platform is arranged on the left of track, and namely ground enabling touching platform and the first switch gate arm 7 are positioned at homonymy.Bottom door opens implementation: the enabling handle 7a of the first switch gate arm 7 touches platform with enabling and collides, the enabling handle 7a of the first switch gate arm 7 rotates clockwise, and drive transmission shaft 1, toggle linkage 2, first connecting rod 5 and second connecting rod 6 to rotate clockwise, realize that bottom door is instantaneous to be opened.Open the door due to ground and touch platform " 7 " type structure, the pass door handle 7a cw of instantaneous opening procedure breaker in middle gate arm 7 is smooth in enabling touching platform 20 after rotating the collision position 20a circumventing the touching platform 20 that opens the door.Bottom door closes implementation: the pass door handle 7b of the first switch gate arm 7 touches platform collide with the closing the door of ground, left side being arranged in vehicle direct of travel track, the pass door handle 7b of the first switch gate arm 7 rotates counterclockwise, and drive transmission shaft 1, toggle linkage 2, first connecting rod 5 and second connecting rod 6 to rotate counterclockwise, realize bottom door slowly closing.In slow door closing procedure the enabling handle 7a conter clockwise of the first switch gate arm 7 upwards rotate dislocation circumventing close the door touching platform 21 position, side afterwards smooth by close the door touching platform 21.
If vehicle “A” end of car drives in the front, ground enabling touching platform is arranged on the right side of track, and namely ground enabling touching platform and second switch gate arm 8 are positioned at homonymy.Bottom door opens implementation: the enabling handle 8a of second switch gate arm 8 touches platform with enabling and collides, there is left-hand revolution in the enabling handle 8a of second switch gate arm 8, and drive transmission shaft 1, toggle linkage 2, first connecting rod 5 and second connecting rod 6 to rotate counterclockwise, realize that bottom door is instantaneous to be opened.Open the door due to ground and touch platform " 7 " type structure, the pass door handle 7a conter clockwise of instantaneous opening procedure breaker in middle gate arm 8 is smooth in enabling touching platform 20 after rotating the collision position 20a circumventing the touching platform 20 that opens the door.Bottom door closes implementation: the pass door handle 8b of second switch gate arm 8 touches platform collide with the closing the door of ground, left side being arranged in vehicle direct of travel track, there is clickwise in the enabling handle 8a of second switch gate arm 8, and drive transmission shaft, toggle linkage, first connecting rod 5 and second connecting rod 6 to rotate clockwise, realize bottom door slowly closing.In slow door closing procedure second switch gate arm 8 enabling handle 8a clockwise direction on rotate dislocation circumventing close the door touching platform 21 position, side afterwards smooth by close the door touching platform 21.
Embodiment two
Be arranged on the left side of car body below in conjunction with the first switch gate arm 7, second switch gate arm 8 is arranged on the right side of car body.The pass door handle of the first switch gate arm 7 and the first switch gate arm 8 is described in front, the principle of work of the posterior embodiment of enabling handle to bottom door opening and closing system provided by the invention.The present embodiment is relative to embodiment one, the direction of embodiment one toggle linkage can be done the adjustment of 180 degree, so cross direction, dead point relative to embodiment one double leval jib can do and change, and then have influence on the direction that the first switch gate arm 7 and the first switch gate arm 8 switch door handle rotate.
When vehicle end drives in the front, ground enabling touching platform is arranged on the left of track, and namely ground enabling touching platform and the first switch gate arm 7 are positioned at homonymy.Bottom door opens implementation: the enabling handle 7a of the first switch gate arm 7 touches platform with enabling and collides, the enabling handle 7a of the first switch gate arm 7 rotates counterclockwise, and drive transmission shaft 1, toggle linkage 2, first connecting rod 5 and second connecting rod 6 to rotate counterclockwise, realize that bottom door is instantaneous to be opened.Open the door due to ground and touch platform " 7 " type structure, the pass door handle 7a conter clockwise of instantaneous opening procedure breaker in middle gate arm 7 is smooth in enabling touching platform 20 after rotating the collision position 20a circumventing the touching platform 20 that opens the door.Bottom door closes implementation: the pass door handle 7b of the first switch gate arm 7 touches platform collide with the closing the door of ground, left side being arranged in vehicle direct of travel track, the pass door handle 7b of the first switch gate arm 7 rotates clockwise, and drive transmission shaft 1, toggle linkage 2, first connecting rod 5 and second connecting rod 6 to rotate clockwise, realize bottom door slowly closing.In slow door closing procedure the first switch gate arm 7 enabling handle 7a clockwise direction on rotate dislocation circumventing close the door touching platform 21 position, side afterwards smooth by close the door touching platform 21.
If vehicle “A” end of car drives in the front, ground enabling touching platform is arranged on the right side of track, and namely ground enabling touching platform and second switch gate arm 8 are positioned at homonymy.Bottom door opens implementation: the enabling handle 8a of second switch gate arm 8 touches platform with enabling and collides, there is clickwise in the enabling handle 8a of second switch gate arm 8, and drive transmission shaft 1, toggle linkage 2, first connecting rod 5 and second connecting rod 6 to rotate clockwise, realize that bottom door is instantaneous to be opened.Open the door due to ground and touch platform " 7 " type structure, the pass door handle 7a cw of instantaneous opening procedure breaker in middle gate arm 8 is smooth in enabling touching platform 20 after rotating the collision position 20a circumventing the touching platform 20 that opens the door.Bottom door closes implementation: the pass door handle 8b of second switch gate arm 8 touches platform collide with the closing the door of ground, left side being arranged in vehicle direct of travel track, there is left-hand revolution in the enabling handle 8a of second switch gate arm 8, and drive transmission shaft, toggle linkage, first connecting rod 5 and second connecting rod 6 to rotate counterclockwise, realize bottom door slowly closing.In slow door closing procedure the enabling handle 8a conter clockwise of second switch gate arm 8 upwards rotate dislocation circumventing close the door touching platform 21 position, side afterwards smooth by close the door touching platform 21.
Hopper wagon bottom door open and close system structure provided by the invention is simple, operation, easy to maintenance, conduct oneself with dignity little, cost is low; Shipping mass is high, shortening duration of handling, accelerating vehicle have enough to meet the need, improve handling labor condition, reduce traffic cost; The enforcement of " mechanical collision self lighting type " bottom door opening and closing system of bidirectional switch, turns arbitrarily when vehicle can be made to use, and a single side wheel can be avoided abrasion serious problems, thus improve wheel life, reduce vehicle maintenance cost, reduce maintenance time.And substantially increase comformability and the alerting ability of the railway hopper car of employing " mechanical collision self lighting type " bottom door opening and closing system.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (9)
1. a bottom door opening and closing system, is characterized in that, comprises bottom door opening and closing mechanism and ground enabling touching platform;
Described bottom door opening and closing mechanism, comprise transmission shaft, toggle linkage, first connecting rod, second connecting rod,
First switch gate arm, second switch gate arm and bottom door; Described transmission shaft is fixedly connected with vehicle frame; Described toggle linkage is arranged on described transmission shaft; One end of described first connecting rod and second connecting rod is hinged with described toggle linkage respectively, and the other end is hinged with the outside of corresponding bottom door respectively; Described bottom door side is hinged on bottom hopper car; Described first switch gate arm, second switch gate arm are arranged on described transmission shaft two ends respectively; Described bottom door, first connecting rod, second connecting rod and toggle linkage form four-bar linkage;
Touching platform is opened the door for when hopper car travels in described ground, touch with the enabling handle of described first switch gate arm or second switch gate arm, make enabling handle generation cw or the left-hand revolution of the first switch gate arm or second switch gate arm, thus make described four-bar linkage cross dead point, cause the bottom door of hopper car to be opened; Described first switch gate arm and second switch gate arm comprise respectively:
Enabling handle and pass door handle;
Described pass door handle and enabling handle are respectively arranged with roller;
Described enabling handle and pass door handle are fixedly connected with described transmission shaft respectively;
Angle between the enabling handle of described second enabling arm and described pass door handle is greater than 100 ° and is less than 160 °; Also comprise the bearing composition of the end being separately positioned on hopper car, described bearing composition comprises:
Boatswain chair, bearing;
Described boatswain chair is fixedly connected with described bearing; Described boatswain chair is connected with the end winding support of hopper car;
Described transmission shaft one end through described bearing and described first switch gate arm enabling handle and close door handle and be connected, the other end passes the enabling handle of described bearing and described second switch gate arm and closes door handle and be connected.
2. bottom door opening and closing system according to claim 1, is characterized in that:
Angle between the enabling handle of described first enabling arm and described pass door handle is greater than the angle between the enabling handle of described second enabling arm and described pass door handle, and is less than 160 °.
3. bottom door opening and closing system according to claim 1, is characterized in that:
Described enabling handle and the height of transversion malposition closed between door handle are 60mm-100mm.
4. bottom door opening and closing system according to claim 1, is characterized in that, also comprise inhibiting device; Described inhibiting device comprises:
Limiting block and adjustment bolt;
Described limiting block is separately positioned on the pass door handle of described first switch gate arm and second switch gate arm;
Described adjustment bolt is arranged on described boatswain chair by a block.
5. bottom door opening and closing system according to claim 1, is characterized in that, opening the door and touch platform in described ground is in " 7 " type structure.
6. bottom door opening and closing system according to claim 1, is characterized in that, the section angle of described ground enabling touching platform is less than 20 °, notch length h=150mm-300mm for being greater than 15 °.
7. bottom door opening and closing system according to claim 1, is characterized in that, also comprise, and closes the door touching platform in ground, and described ground touching platform of closing the door is rectangular triangle or ladder structure of right angle, and is provided with elastomeric element.
8. bottom door opening and closing system according to claim 7, is characterized in that, described ground close the door touching platform section angle be less than 18 ° for being greater than 11 °, horizontal parallel misalignment h '=50mm-100mm.
9. according to the arbitrary described bottom door opening and closing system of claim 1-8, it is characterized in that, also comprise: close the door touching platform in ground, touching platform is closed the door for when hopper car travels in described ground, touch with the pass door handle of described first switch gate arm or second switch gate arm, make pass door handle generation cw or the left-hand revolution of the first switch gate arm or second switch gate arm, thus make described four-bar linkage cross dead point, cause the bottom door of hopper car to be closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189889.8A CN103253279B (en) | 2013-05-20 | 2013-05-20 | Bottom door opening and closing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189889.8A CN103253279B (en) | 2013-05-20 | 2013-05-20 | Bottom door opening and closing system |
Publications (2)
| Publication Number | Publication Date |
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| CN103253279A CN103253279A (en) | 2013-08-21 |
| CN103253279B true CN103253279B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310189889.8A Active CN103253279B (en) | 2013-05-20 | 2013-05-20 | Bottom door opening and closing system |
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| CN (1) | CN103253279B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264706B (en) * | 2013-05-20 | 2016-08-10 | 中车长江车辆有限公司 | Bottom door opening and closing mechanism |
| CN103786735B (en) * | 2014-02-27 | 2017-01-18 | 中车齐齐哈尔车辆有限公司 | Opening and closing drive device of wagon unloading door, wagon and ground unloading device |
| CN104309614A (en) * | 2014-10-15 | 2015-01-28 | 南车眉山车辆有限公司 | One-way automatic-discharging hopper wagon |
| CN104773180B (en) * | 2015-03-17 | 2017-06-16 | 中车齐齐哈尔车辆有限公司 | A kind of funnel vehicle and its bottom door opening and closing mechanism, control method |
| CN105197028A (en) * | 2015-10-10 | 2015-12-30 | 齐齐哈尔轨道交通装备有限责任公司 | Hopper car and end bottom door opening/closing mechanism thereof |
| CN105216807B (en) * | 2015-11-12 | 2018-05-25 | 中车资阳机车有限公司 | A kind of non-maintaining collision system of ore hopper car shedding mechanism |
| CN105460029B (en) * | 2015-12-25 | 2018-03-02 | 中车长江车辆有限公司 | A kind of hopper wagon |
| CN108466626B (en) * | 2018-05-31 | 2020-05-05 | 中车长江车辆有限公司 | Bottom door device and railway hopper car |
| CN116691744B (en) * | 2023-05-09 | 2025-10-24 | 国能铁路装备有限责任公司 | Bottom door opening and closing mechanism |
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| US3459316A (en) * | 1967-10-31 | 1969-08-05 | Acf Ind Inc | Means for automatically operating bottom hopper discharge doors during travel of railway cars |
| US4829908A (en) * | 1987-06-03 | 1989-05-16 | Thrall Car Manufacturing Co. | Hopper car automatic discharge door mechanism with operating lever adjustable support |
| CN201923138U (en) * | 2011-01-01 | 2011-08-10 | 齐齐哈尔轨道交通装备有限责任公司 | Hopper car |
| CN102765399A (en) * | 2012-08-07 | 2012-11-07 | 南车长江车辆有限公司 | Opening-closing device for bottom door of vehicle |
| CN203511653U (en) * | 2013-05-20 | 2014-04-02 | 南车长江车辆有限公司 | Bottom door opening and closing system |
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- 2013-05-20 CN CN201310189889.8A patent/CN103253279B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3459316A (en) * | 1967-10-31 | 1969-08-05 | Acf Ind Inc | Means for automatically operating bottom hopper discharge doors during travel of railway cars |
| US4829908A (en) * | 1987-06-03 | 1989-05-16 | Thrall Car Manufacturing Co. | Hopper car automatic discharge door mechanism with operating lever adjustable support |
| CN201923138U (en) * | 2011-01-01 | 2011-08-10 | 齐齐哈尔轨道交通装备有限责任公司 | Hopper car |
| CN102765399A (en) * | 2012-08-07 | 2012-11-07 | 南车长江车辆有限公司 | Opening-closing device for bottom door of vehicle |
| CN203511653U (en) * | 2013-05-20 | 2014-04-02 | 南车长江车辆有限公司 | Bottom door opening and closing system |
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| Publication number | Publication date |
|---|---|
| CN103253279A (en) | 2013-08-21 |
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