CN110816562B - Hopper car bottom door opening mechanism - Google Patents
Hopper car bottom door opening mechanism Download PDFInfo
- Publication number
- CN110816562B CN110816562B CN201911255175.6A CN201911255175A CN110816562B CN 110816562 B CN110816562 B CN 110816562B CN 201911255175 A CN201911255175 A CN 201911255175A CN 110816562 B CN110816562 B CN 110816562B
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- door opening
- transmission shaft
- pair
- pull rod
- shaft
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- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 79
- 230000000712 assembly Effects 0.000 claims abstract description 26
- 238000000429 assembly Methods 0.000 claims abstract description 26
- 230000009467 reduction Effects 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 238000010168 coupling process Methods 0.000 claims description 32
- 238000005859 coupling reaction Methods 0.000 claims description 32
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 230000008878 coupling Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D7/00—Hopper cars
- B61D7/02—Hopper cars with discharge openings in the bottoms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D7/00—Hopper cars
- B61D7/14—Adaptations of hopper elements to railways
- B61D7/16—Closure elements for discharge openings
- B61D7/24—Opening or closing means
- B61D7/28—Opening or closing means hydraulic or pneumatic
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to a hopper car bottom door opening mechanism which comprises a locking device, a hand wheel reduction gearbox, a pull rod device, a first pair of door opening transmission shaft assemblies, a 10-degree-difference coupler and a second pair of door opening transmission shaft assemblies, wherein an output shaft of the hand wheel reduction gearbox is connected with the locking device through the coupler, the locking device is connected with the first pair of door opening transmission shaft assemblies through the pull rod device, and the first pair of door opening transmission shaft assemblies are connected with the second pair of door opening transmission shaft assemblies through the 10-degree-difference coupler. The invention adopts two modes of pneumatic and manual door opening, and adopts a relay door opening mode through a 10 DEG difference coupler, thereby greatly reducing the door opening moment and reducing the door opening moment to below 30 kN.m.
Description
Technical Field
The invention relates to a hopper car, in particular to a hopper car bottom door opening mechanism.
Background
The K18G type hopper car is a wind control self-discharging type special truck. The vehicle can realize whole train unloading, grouping unloading and single unloading. The vehicle can be manually unloaded under the condition of no wind source.
At present, most of the uncovered hopper cars in China adopt a large-cutter type opening and closing mechanism (such as K1 6, K18, K70 and the like). The mechanism has simple structure, fewer parts, convenient manufacture and assembly, reasonable arrangement of the cutter bar and reliable locking function as long as a certain self-locking eccentric distance can be ensured.
The bottom door can be opened and closed only by providing necessary rotation moment for the transmission shaft. Since the bottom door stay is shaped like a large knife, it is called a "large knife" type opening and closing mechanism.
The large knife type opening and closing mechanism realizes self-locking by forming self-locking eccentric distance by passing a dead point through a large knife (namely a bottom door connecting rod).
When the door is opened, the large knife is required to pull the bottom door to a small distance in the vehicle in the process of flushing the dead point to release self-locking. And the goods contained in the car have great resistance to the movement of the bottom door. Therefore, a large enough force is needed to overcome the resistance to release the self-locking mechanism to open the bottom door. The release of the self-locking can be realized only by rotating the transmission shaft by about 6 degrees.
However, the drive shaft must be rotated by about 93 ° to fully open the bottom door. When the door is opened manually, the required moment is more than or equal to 45 kN.m. According to investigation, users use the door most or manually in the using process, and the large moment brings great inconvenience to the users. To reduce the manual door opening moment. Aiming at the characteristics, the lower transmission mechanism of the door opening mechanism is improved, and the door opening moment is greatly reduced by adopting a relay door opening mode.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hopper car bottom door opening mechanism which reduces door opening moment when a user opens a door manually.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a hopper car bottom door mechanism, includes locking device, hand wheel reducing gear box, draw bar device, first to door transmission shaft subassembly that opens the door, 10 poor shaft coupling, second to door transmission shaft subassembly that opens the door, and the output shaft of hand wheel reducing gear box passes through the shaft coupling to be connected with locking device, and locking device passes through draw bar device and is connected with first to door transmission shaft subassembly that opens the door, and first to door transmission shaft subassembly and second to door are opened the door through 10 poor shaft coupling between the transmission shaft subassembly.
The locking device comprises a cylinder, a locking transmission shaft, a pin shaft, a support, a lock iron, a lock head shifting fork, a shifting fork stop block, a gear, a rack and a cylinder stop lever, wherein the pin shaft is arranged on the upper portion of the support, the locking transmission shaft is arranged on the lower portion of the support, the gear is connected with the locking transmission shaft through a bushing, a guide wheel is arranged on the pin shaft, the rack is arranged between the guide wheel and the gear, the rack is connected with the cylinder, the rack is limited by the cylinder stop lever hinged to the support, a top iron is movably connected on the rack, the lock iron is arranged on one side of the guide wheel, the top iron is in top connection with the lock iron, a lock head in sliding connection with the locking transmission shaft is arranged on one side of the gear, the lock head is meshed with a bushing tooth, and the lock head shifting fork is arranged outside the lock head.
The lower end of the lock head shifting fork is hinged with the lock head, the middle part of the lock head shifting fork is hinged with the support, and the upper part of the lock head shifting fork is hinged with a shifting fork stop block fixed on the support.
The pull rod device comprises an upper crank, an adjusting pull rod and a lower crank, wherein the upper crank is connected with the upper part of the adjusting pull rod in a pin joint mode, and the lower crank is connected with the lower part of the adjusting pull rod in a pin joint mode.
The first door opening transmission shaft assembly and the second door opening transmission shaft assembly are symmetrical structures and comprise a transmission shaft, a double-link door opening mechanism and a bearing seat, the double-link door opening mechanism is arranged at two ends of the transmission shaft, and the transmission shaft is supported by the bearing seat.
The 10-degree differential coupler comprises a first half-coupling shaft, a second half-coupling shaft and a jacket, wherein the first half-coupling shaft is connected with a transmission shaft of a first pair of door opening transmission shaft assemblies, the second half-coupling shaft is connected with a transmission shaft of a second pair of door opening transmission shaft assemblies, teeth meshed with each other are respectively arranged on the first half-coupling shaft and the second half-coupling shaft, a fan-shaped gap with a central angle of 10 degrees is arranged between the teeth meshed with the second half-coupling shaft, and the jacket 43 is sleeved outside the meshed teeth.
Compared with the prior art, the invention has the beneficial effects that:
The invention adopts two modes of pneumatic and manual door opening, and adopts a relay door opening mode through a 10 DEG difference coupler, thereby greatly reducing the door opening moment and reducing the door opening moment to below 30 kN.m.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the structure of the locking device.
Fig. 3 is a cross-sectional view of the latch.
Fig. 4 is a schematic view of a drawbar apparatus.
Fig. 5 is a schematic structural view of the first door opening transmission shaft assembly.
Fig. 6 is a schematic structural view of a double link door opening mechanism.
Fig. 7 is a schematic view of a 10 deg. differential coupling.
Fig. 8 is a structural cross-sectional view of a 10 deg. differential coupling.
In the figure: the locking device 1, the pull rod device 2, the hand wheel reduction box 3, the 10 DEG differential coupling 4, the first pair of door opening transmission shaft assemblies 5, the second pair of door opening transmission shaft assemblies 6, the upper crank 21, the adjusting pull rod 22, the lower crank 23, the transmission shaft 31, the double-link door opening mechanism 32, the bearing seat 33, the half-coupling first 41, the half-coupling second 42, the outer sleeve 43, the teeth 44, the fan-shaped gap 45, the cylinder 101, the locking transmission shaft 102, the pin 103, the support 104, the lock iron 105, the lock 106, the lock fork 107, the fork stop 108, the gear 109, the rack 110, the cylinder stop 111, the guide wheel 112, the cylinder stop 113, the top iron 114 and the bushing 115.
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
1-8, a hopper car bottom door opening mechanism comprises a locking device 1, a pull rod device 2, a hand wheel reduction box 3, a first pair of door opening transmission shaft assemblies 5, a 10-degree difference coupler 4, a second pair of door opening transmission shaft assemblies 6, wherein the locking device 1 is connected with the first pair of door opening transmission shaft assemblies 5 through the pull rod device 2, and the first pair of door opening transmission shaft assemblies 5 are connected with the second pair of door opening transmission shaft assemblies 5 through the 10-degree difference coupler 4.
The locking device 1 comprises a cylinder 101, a locking transmission shaft 102, a pin shaft 103, a support 104, a lock iron 105, a lock head 106, a lock head shifting fork 107, a shifting fork stop block 108, a gear 109, a rack 110, a cylinder stop lever 111, a guide wheel 112, a cylinder stop lever 113 and a top iron 114; the upper portion of support 104 is equipped with round pin axle 103, the lower part of support 104 is equipped with the locking transmission shaft 102, be equipped with gear 109 on the locking transmission shaft 102, be equipped with the leading wheel 112 that corresponds with gear 109 on the round pin axle 103, be equipped with rack 110 between leading wheel 112 and the gear 109, rack 110 is connected with cylinder 101, rack 110 is spacing by the cylinder pin 113 that articulates on support 104, connect top iron 114 on the rack 110, leading wheel 112 one side is equipped with lock iron 105, top iron 114 and lock iron 105 top connect, gear 109 one side is equipped with locking head 106 of locking transmission shaft 102 sliding connection, locking head 106 and bush 115 tooth meshing locking head 106 external connection locking head shift fork 107.
The lower end of the lock head shifting fork 107 is hinged with the lock head 106, the middle part of the lock head shifting fork 107 is hinged with the support 104, and the upper part of the lock head shifting fork 107 is hinged with a shifting fork stop block 108 fixed on the support 104.
The pull rod device 2 comprises an upper crank 21, an adjusting pull rod 22 and a lower crank 23, wherein one end of the upper crank 21 is fixedly connected with a locking transmission shaft 102, the other end of the upper crank is in pin joint with the upper part of the adjusting pull rod 22, one end of the lower crank 23 is in pin joint with the lower part of the adjusting pull rod 22, and the other end of the lower crank 23 is in pin joint with a transmission shaft 31 of the first side-by-side door opening transmission shaft assembly 5.
The first door opening transmission shaft assembly 5 and the second door opening transmission shaft assembly 6 are of symmetrical structures and comprise a transmission shaft 31, a double-link door opening mechanism 32 and a bearing seat 33, the double-link door opening mechanism 32 is arranged at two ends of the transmission shaft 31, and the transmission shaft 31 is supported by the bearing seat 33.
The 10-degree differential coupler 4 comprises a first half-coupling shaft 41, a second half-coupling shaft 42 and a jacket 43, wherein the first half-coupling shaft 41 is connected with a transmission shaft 31 of the first door-opening transmission shaft assembly 5, the second half-coupling shaft 42 is connected with a transmission shaft 31 of the second door-opening transmission shaft assembly 6, teeth 44 are respectively arranged on the first half-coupling shaft 41 and the second half-coupling shaft 42, the first half-coupling shaft 41 and the second half-coupling shaft 42 are meshed through teeth, a fan-shaped gap 45 with a central angle of 10 degrees is arranged between the teeth 44 after the two half-coupling shafts are meshed, and the jacket 43 is sleeved outside the meshed teeth.
Pneumatic door opening process: the lock fork 107 is shifted to enable the lock 106 to be meshed with the bushing 115, the piston of the cylinder 101 pushes out the rack 110, the gear 109 idles for 12 degrees, the top iron 114 jacks up the lock iron 105, and the transmission shaft 102 is locked to rotate. The transmission shaft of the first pair of door opening transmission shaft assemblies 5 rotates 7.5 ° by the transmission of the upper bell crank 21, the adjusting lever 22 and the lower bell crank 23. The double-link door opening mechanism on the shaft exceeds the dead point, the corresponding bottom door is opened, when the door is rotated to 10 degrees, the 10-degree differential coupler drives the transmission shaft of the second opposite door opening transmission shaft assembly 6 to rotate, and when the transmission shaft rotates for 7.5 degrees, the double-link door opening mechanism on the shaft also exceeds the dead point, and the corresponding bottom door is opened.
When the door is closed pneumatically, the piston of the cylinder 101 is retracted and the closing process is reversed from the pneumatic opening. The top iron 114 is locked with the lock head 106, and the cylinder stop lever 113 is used for stopping the rack for limiting.
Manual door opening: the lock fork 107 is shifted to disengage the lock 106 from the bushing 115, and the locking transmission shaft 102 is controlled by the hand wheel reduction 3. The hand wheel of the hand wheel reduction box 3 is rotated, the output shaft of the hand wheel reduction box 3 drives the locking transmission shaft 102 to rotate, and the transmission shafts of the first pair of door opening transmission shaft assemblies 5, the 10-degree differential coupling and the second pair of door opening transmission shaft assemblies 6 are driven to rotate through the upper crank 21, the adjusting pull rod 22 and the lower crank 23, so that bottom door opening is realized. Manual closing of the door is operated in opposition to manual opening of the door.
The above description is only of the basic principle of the invention, and is not limited in any way, and all equivalent changes and modifications according to the invention are within the scope of the technical protection scheme of the patent.
Claims (4)
1. The bottom door opening mechanism of the hopper car is characterized by comprising a locking device, a hand wheel reduction gearbox, a pull rod device, a first pair of door opening transmission shaft assemblies, a 10-degree-difference coupler and a second pair of door opening transmission shaft assemblies, wherein an output shaft of the hand wheel reduction gearbox is connected with the locking device through the coupler, the locking device is connected with the first pair of door opening transmission shaft assemblies through the pull rod device, and the first pair of door opening transmission shaft assemblies are connected with the second pair of door opening transmission shaft assemblies through the 10-degree-difference coupler;
The locking device comprises a cylinder, a locking transmission shaft, a pin shaft, a support, a locking iron, a lock head shifting fork, a shifting fork stop block, a gear, a rack and a cylinder stop lever, wherein the pin shaft is arranged at the upper part of the support;
The 10-degree differential coupler comprises a first half-coupling shaft, a second half-coupling shaft and a jacket, wherein the first half-coupling shaft is connected with a transmission shaft of a first pair of door opening transmission shaft assemblies, the second half-coupling shaft is connected with a transmission shaft of a second pair of door opening transmission shaft assemblies, teeth meshed with each other are respectively arranged on the first half-coupling shaft and the second half-coupling shaft, a fan-shaped gap with a central angle of 10 degrees is arranged between the teeth meshed with the second half-coupling shaft, and the jacket is sleeved outside the meshed teeth.
2. The hopper car bottom door opening mechanism according to claim 1, wherein the lower end of the lock fork is hinged with the lock, the middle part of the lock fork is hinged with the support, and the upper part of the lock fork is hinged with a fork stop fixed on the support.
3. The hopper car bottom door opening mechanism according to claim 1, wherein the pull rod device comprises an upper crank, an adjusting pull rod and a lower crank, the upper part of the adjusting pull rod is connected with the upper crank in a pin joint mode, and the lower part of the adjusting pull rod is connected with the lower crank in a pin joint mode.
4. The hopper car bottom door opening mechanism according to claim 1, wherein the first pair of door opening transmission shaft assemblies and the second pair of door opening transmission shaft assemblies are symmetrical structures and comprise a transmission shaft, a double-link door opening mechanism and a bearing seat, the double-link door opening mechanism is arranged at two ends of the transmission shaft, and the transmission shaft is supported by the bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255175.6A CN110816562B (en) | 2019-12-09 | 2019-12-09 | Hopper car bottom door opening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255175.6A CN110816562B (en) | 2019-12-09 | 2019-12-09 | Hopper car bottom door opening mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110816562A CN110816562A (en) | 2020-02-21 |
| CN110816562B true CN110816562B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911255175.6A Active CN110816562B (en) | 2019-12-09 | 2019-12-09 | Hopper car bottom door opening mechanism |
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| Country | Link |
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| CN (1) | CN110816562B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111806474A (en) * | 2020-07-21 | 2020-10-23 | 中车太原机车车辆有限公司 | 30-ton axle weight side-dumping coal hopper car and bottom door opening and closing mechanism thereof |
| CN112477890B (en) * | 2020-12-25 | 2023-04-14 | 铜陵铁科轨道装备股份有限公司 | KM70 pneumatic bottom door opening system convenient to maintain |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211710819U (en) * | 2019-12-09 | 2020-10-20 | 鞍钢集团（鞍山）铁路运输设备制造有限公司 | Hopper car bottom door opening mechanism |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201357832Y (en) * | 2008-12-29 | 2009-12-09 | 南车眉山车辆有限公司 | Grain hopper car |
| CN201427577Y (en) * | 2009-05-08 | 2010-03-24 | 邹城兖物汇金矿山设备制修有限公司 | Bottom-dump tramcar |
| CN201530385U (en) * | 2009-10-27 | 2010-07-21 | 南车长江车辆有限公司 | Two-stage self-locking bottom door opening-closing mechanism for railroad hopper wagon |
| CN102556087B (en) * | 2011-12-30 | 2015-03-18 | 太原轨道交通装备有限责任公司 | Bottom door opening and closing mechanism for railway coal hopper car |
| CN203047267U (en) * | 2012-12-22 | 2013-07-10 | 太原轨道交通装备有限责任公司 | Railway stone frantic jumble funnel vehicle bottom door opening and closing mechanism |
| CN103538592B (en) * | 2013-10-29 | 2017-01-11 | 中车石家庄车辆有限公司 | Limiting device for controlling railway hopper car bottom door opening angle |
| CN104163177A (en) * | 2014-08-05 | 2014-11-26 | 南车眉山车辆有限公司 | Railway funnel vehicle bottom door opening and closing system |
| CN106627609B (en) * | 2016-11-23 | 2018-11-16 | 晋西铁路车辆有限责任公司 | A kind of hopper wagon that locking bottom is opened the door |
| CN106853832B (en) * | 2017-01-17 | 2018-09-14 | 中车山东机车车辆有限公司 | A kind of bottom door opening-closing mechanism for railroad hopper wagon |
-
2019
- 2019-12-09 CN CN201911255175.6A patent/CN110816562B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211710819U (en) * | 2019-12-09 | 2020-10-20 | 鞍钢集团（鞍山）铁路运输设备制造有限公司 | Hopper car bottom door opening mechanism |
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| Publication number | Publication date |
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| CN110816562A (en) | 2020-02-21 |
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