WO2015070721A1 - 一种连杆式二级锁闭装置、漏斗车底门及漏斗车 - Google Patents
一种连杆式二级锁闭装置、漏斗车底门及漏斗车 Download PDFInfo
- Publication number
- WO2015070721A1 WO2015070721A1 PCT/CN2014/090411 CN2014090411W WO2015070721A1 WO 2015070721 A1 WO2015070721 A1 WO 2015070721A1 CN 2014090411 W CN2014090411 W CN 2014090411W WO 2015070721 A1 WO2015070721 A1 WO 2015070721A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arm
- locking device
- type secondary
- secondary locking
- roller
- Prior art date
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Classifications
-
- 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
-
- 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
- B61D7/26—Opening or closing means mechanical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D19/00—Clutches with mechanically-actuated clutching members not otherwise provided for
Definitions
- the invention relates to the technical field of railway freight cars, in particular to a link type secondary locking device, a hopper bottom door and a hopper car.
- the existing railway hopper car adopts a box-type bottom door structure, and the bottom door opening and closing mechanism controls the switch of the bottom door to realize the automatic unloading function.
- the opening and closing of the bottom door is completely dependent on the control of the bottom door opening and closing mechanism.
- the bottom door opening and closing mechanism fails, the bottom door will lose its effective control and is completely in a freely rotating state.
- the bottom door is easily opened by itself, causing cargo leakage or automatic unloading, thereby affecting driving safety.
- the bottom door opening and closing mechanism is a key component to ensure the normal unloading of the railway hopper car. It is easy to open and close and has stable performance.
- the existing "mechanical collision self-unloading" bottom door opening and closing mechanism has the above characteristics and is currently at home and abroad. A large number of loading on the railway hopper car. And has a corresponding self-locking device, to avoid the bottom door self-opening due to vibration or the like during transportation or the bottom door is not normally opened due to other factors.
- the secondary locking scheme currently adopted by the hopper car adopting the "mechanical collision dumping" bottom door opening and closing mechanism is the locking operation handle principle, the adaptability is relatively limited, and the requirements of the bidirectional switch bottom door cannot be met.
- the present invention provides a link type secondary locking device provided on a hopper car bottom door which is opened and closed by a plane four-bar linkage mechanism, and a link type secondary locking device.
- the link type secondary locking device comprises a transmission shaft, an opening arm, a first roller, a second roller, a first positioning pin, a stop dial and a link mechanism
- the opening arm comprises an active arm and a driven arm
- One end of the active arm is provided with an oblong hole, and the other end is fixedly connected to the transmission shaft, the first positioning pin is fixedly connected to the first roller, and the first roller passes through the first positioning pin and the
- the oblong hole constitutes a sliding pair, the second arm is hinged at one end of the slave arm, and the other end is fixedly connected to the transmission shaft;
- the stop disc is fixedly connected to the drive shaft, and the bottom end of the stop disc has a convex tooth;
- the link mechanism includes an unlocking lever having an a end and a b end, the unlocking lever having a c end and a d end, the interlocking pawl having an m end and a n
- the end of the unlocking lever is hinged to the c-end of the unlocking link, and the d-end of the unlocking link is hinged to the m-end of the interlocking pawl;
- the intermediate portion of the unlocking lever is hinged to the active arm, the a end of the unlocking lever is erected on the first roller, and the n-end of the interlocking pawl is hinged to the driven arm;
- the first positioning pin is located at a lower semicircle of the oblong hole, and at this time, the m end of the interlocking pawl abuts against the protruding tooth, and the link type secondary locking device is truss;
- the first roller slides upward in the oblong hole under the driving of the first positioning pin, when the first positioning pin is in the oblong hole
- the m end of the interlocking pawl is disengaged from the protruding tooth, and at this time, the first roller is continuously urged, and the follower arm follows the active arm and the link mechanism Exercise and exercise.
- the link type secondary locking device further comprises a torsion spring, the torsion spring is sleeved on the n-end of the linkage pawl and the hinge point of the slave arm, the torsion spring One end is fixedly connected to the driven arm, and the other end is fixedly connected to the interlocking pawl, and the torsion spring can provide a rotation preventing force for the link mechanism.
- a torsion spring the torsion spring is sleeved on the n-end of the linkage pawl and the hinge point of the slave arm, the torsion spring One end is fixedly connected to the driven arm, and the other end is fixedly connected to the interlocking pawl, and the torsion spring can provide a rotation preventing force for the link mechanism.
- the reserved amount there is a reserved amount between the m end of the interlocking pawl and the convex tooth, and the reserved amount ranges from a maximum over dead point to a maximum dead point of the open arm.
- the reserved amount ranges from a maximum over dead point to a minimum over dead point of the open arm.
- the present invention also provides a hopper car door comprising the link type secondary locking device provided by the present invention.
- the present invention also provides a hopper car comprising the hopper car door provided by the present invention.
- the connecting rod type secondary locking device uses a flat four-bar linkage mechanism to add a stop turntable and a link mechanism on the basis of the hopper car bottom door which is opened and closed by the dead point, usually, the first roller and the unlocking
- the action of the lever's own gravity acts to interlock the m end of the locking pawl against the convex tooth of the stop dial.
- the link type secondary locking device is a truss, even if the first roller is accidentally subjected to an upward force, as long as the first positioning pin does not arrive
- the upper semicircle of the oblong hole provided on the active arm continues to be stressed, and the link mechanism cannot rotate. At this time, the slave arm cannot rotate.
- the hopper car bottom door provided by the invention comprises the link type secondary locking device provided by the invention, even if the first roller accidentally receives an upward force, as long as the first positioning pin does not reach the oblong hole provided on the active arm At the semicircle, the link mechanism cannot be rotated. At this time, the slave arm cannot be rotated, which avoids the accidental opening of the hopper bottom door.
- the hopper car provided by the invention has the hopper car door provided by the invention, which can avoid the accidental opening of the hopper car door and is more reliable in application.
- FIG. 1 is a schematic structural view of a link type secondary locking device (removing a link mechanism) according to an embodiment of the present invention
- FIG. 2 is a schematic structural view of the interlocking claw of the linked type lock device according to the embodiment of the present invention when the m end of the linkage lock claw abuts against the convex tooth of the stop dial;
- FIG. 3 is a schematic structural view of the interlocking claw of the linkage type secondary locking device provided by the embodiment of the present invention when the m end of the interlocking pawl is just released from the protruding tooth of the stop dial;
- FIG. 4 is a schematic structural view of a link type secondary locking device according to an embodiment of the present invention when the boom is moved to a limit;
- FIG. 5 is a schematic structural diagram of a reserved amount between an m-end and a protruding tooth of a linkage type locking device according to an embodiment of the present invention
- FIG. 6 is a structural schematic view of a link type secondary locking device torsion spring and its connection with the follower arm and the interlocking pawl according to the embodiment of the present invention.
- the opening arm includes an active arm 2 and a driven arm 3.
- the end of the active arm 2 is provided with an oblong hole 6 and the other end is fixedly connected to the transmission shaft 1.
- the first positioning pin 7 is fixedly connected to the first roller 8, and the first roller 8
- a sliding pair is formed by the first positioning pin 7 and the oblong hole 6.
- the second roller 10 is hinged at one end 5 of the driven arm 3. The hinge point is 9 and the other end is fixedly connected to the transmission shaft 1.
- the turntable 24 is fixedly coupled to the drive shaft 1, and the bottom end of the stop dial 24 has a convex tooth 25.
- the link mechanism includes an unlocking lever 11, an unlocking link 15 and an interlocking pawl 20, and the unlocking lever 11 has There is a terminal 12 and a b end 13, the unlocking link 15 has a c-end 16 and a d-end 17, the interlocking pawl 20 has an m-end 21 and an n-end 22, and the b-end 13 of the unlocking lever 11 is hinged to the unlocking link 15
- the end 16, the hinge point is numbered 18, and the d-end 17 of the unlocking link 15 is hinged to the m-end 21 of the interlocking pawl 20, the hinge point being numbered 19.
- the intermediate portion of the unlocking lever 11 is hinged to the active arm 2, the hinge point is designated 14, and the a-end 12 of the unlocking lever 11 is erected on the first roller 8, and the n-end of the interlocking pawl 20 is hinged to the driven arm 3.
- the first positioning pin 7 is located at the lower semicircle of the oblong hole 6, at which time the m-end 21 of the interlocking pawl 20 abuts against the convex tooth 25, and the link type secondary locking device is truss.
- the first roller 8 is slid upward in the oblong hole 6 by the first positioning pin 7, when the first positioning pin 7 is in the oblong hole 6.
- the m end 21 of the interlocking pawl 20 is disengaged from the convex tooth 25, and at this time, the first roller 8 is continuously urged, and the follower arm 3 moves along with the movement of the active arm 2 and the link mechanism until the movement reaches The position shown in Figure 4.
- the link type secondary locking device provided by the invention adds a stop turntable 24 and a link mechanism on the basis of the hopper car bottom door which is opened and closed by the plane four-bar linkage mechanism, and usually, the first roller 8 And the action of the gravity of the unlocking lever 11 itself interlocks the m end 21 of the locking pawl 20 against the convex tooth 25 of the stop disk 24, the link type secondary locking device is a truss, even if the first roller 8 is accidentally subjected to an upward force As long as the first positioning pin 7 does not reach the upper semicircle of the oblong hole 6 provided on the active arm 2 and continues to be stressed, the link mechanism cannot rotate, and at this time, the follower arm 3 cannot rotate.
- the transmission shaft 1 has an over-eccentric distance.
- the link type secondary locking device may further include a torsion spring 29 which is sleeved over the n-end 22 of the interlocking pawl 20 and the hinge point 23 of the follower arm 3, and the torsion spring One end 30 of the 29 is fixedly connected to the driven arm 3, and the other end 31 is fixedly connected to the interlocking pawl 20.
- the torsion spring 29 can provide a rotation preventing force for the link mechanism, and the rotation force and the first roller 8 and the unlocking lever 11 Self-gravity collectively stops the rotation of the link mechanism, so that the link type secondary locking device provided by the invention is more reliable.
- the link type secondary locking device can not only realize the secondary locking, but also can improve the reliability and adaptability of the connecting type secondary locking device when using and repairing and repairing, and is convenient for maintenance. ,maintain.
- the locking position of the interlocking pawl 20 takes into account the reserve of the drive shaft less than the dead point, and the reserved amount is The maximum over-dead point 26 to the minimum over-dead point 27 of the open arm.
- the present invention also provides a hopper car door comprising the link type secondary locking device provided by the present invention.
- the present invention also provides a hopper car comprising the hopper car door provided by the present invention.
- the hopper car bottom door provided by the invention comprises the link type secondary locking device provided by the invention, even if the first roller accidentally receives an upward force, as long as the first positioning pin does not reach the oblong hole provided on the active arm At the semicircle, the link mechanism cannot be rotated. At this time, the slave arm cannot be rotated, which avoids the accidental opening of the hopper bottom door.
- the hopper car provided by the invention has the hopper car door provided by the invention, which can avoid the accidental opening of the hopper car door and is more reliable in application.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Lock And Its Accessories (AREA)
- Support Devices For Sliding Doors (AREA)
Abstract
Description
Claims (6)
- 一种连杆式二级锁闭装置,其特征在于,包括传动轴、开门臂、第一滚轮、第二滚轮、第一定位销、止转盘和连杆机构,所述开门臂包括主动臂和从动臂,所述主动臂一端设有长圆孔,另一端固定连接于所述传动轴,所述第一定位销固定连接于所述第一滚轮,所述第一滚轮通过所述第一定位销与所述长圆孔构成滑动副,所述从动臂一端铰接有所述第二滚轮,另一端固定连接于所述传动轴;所述止转盘固定连接于所述传动轴,所述止转盘的底端具有凸齿;所述连杆机构包括开锁杠杆、开锁连杆和联动锁爪,所述开锁杠杆具有a端和b端,所述开锁连杆具有c端和d端,所述联动锁爪具有m端和n端,所述开锁杠杆的b端铰接于所述开锁连杆的c端,所述开锁连杆的d端铰接于所述联动锁爪的m端;所述开锁杠杆的中间部位铰接于所述主动臂,所述开锁杠杆的a端搭设于所述第一滚轮上,所述联动锁爪的n端铰接于所述从动臂;通常情况下,所述第一定位销处于所述长圆孔的下半圆处,此时,所述联动锁爪的m端抵顶住所述凸齿,所述连杆式二级锁闭装置是桁架;当所述第一滚轮受到向上的作用力后,所述第一滚轮在所述第一定位销的带动下,在所述长圆孔中向上滑动,当所述第一定位销处于所述长圆孔的上半圆处时,所述联动锁爪的m端脱离所述凸齿,此时,继续对所述第一滚轮施力,所述从动臂随同所述主动臂及所述连杆机构的运动而运动。
- 根据权利要求1所述的连杆式二级锁闭装置,其特征在于,所述连杆式二级锁闭装置还包括扭簧,所述扭簧交叉套设于所述联动锁爪的n端与所述 从动臂的铰接点上,所述扭簧的一端固定连接于所述从动臂上,另一端固定连接于所述联动锁爪上,所述扭簧能够为所述连杆机构提供止转力。
- 根据权利要求1所述的连杆式二级锁闭装置,其特征在于,所述联动锁爪的m端与所述凸齿之间具有预留量,所述预留量的范围为所述开门臂的最大过死点位~最大欠死点位。
- 根据权利要求3所述的连杆式二级锁闭装置,其特征在于,所述预留量的范围为所述开门臂的最大过死点位~最小过死点位。
- 一种漏斗车底门,其特征在于,包括权利要求1~4中任一所述的连杆式二级锁闭装置。
- 一种漏斗车,其特征在于,包括权利要求5所述的漏斗车底门。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2014350782A AU2014350782B2 (en) | 2013-11-15 | 2014-11-06 | Link type secondary locking device, hopper car bottom door and hopper car |
US14/758,737 US20160031454A1 (en) | 2013-11-15 | 2014-11-06 | Connecting Rod Type Two-Level Locking Device, Hopper Car Bottom Door and Hopper Car |
US15/817,093 US10640133B2 (en) | 2013-11-15 | 2017-11-17 | Connecting rod type two-level locking device, hopper car bottom door and hopper car |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310571352.8 | 2013-11-15 | ||
CN201310571352.8A CN103552565B (zh) | 2013-11-15 | 2013-11-15 | 一种连杆式二级锁闭装置、漏斗车底门及漏斗车 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/758,737 A-371-Of-International US20160031454A1 (en) | 2013-11-15 | 2014-11-06 | Connecting Rod Type Two-Level Locking Device, Hopper Car Bottom Door and Hopper Car |
US15/817,093 Continuation US10640133B2 (en) | 2013-11-15 | 2017-11-17 | Connecting rod type two-level locking device, hopper car bottom door and hopper car |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015070721A1 true WO2015070721A1 (zh) | 2015-05-21 |
Family
ID=50006994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2014/090411 WO2015070721A1 (zh) | 2013-11-15 | 2014-11-06 | 一种连杆式二级锁闭装置、漏斗车底门及漏斗车 |
Country Status (4)
Country | Link |
---|---|
US (2) | US20160031454A1 (zh) |
CN (1) | CN103552565B (zh) |
AU (1) | AU2014350782B2 (zh) |
WO (1) | WO2015070721A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113247026A (zh) * | 2021-06-07 | 2021-08-13 | 中车太原机车车辆有限公司 | 一种铁路石砟漏斗车用底门流量控制装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103552565B (zh) * | 2013-11-15 | 2016-08-17 | 中车长江车辆有限公司 | 一种连杆式二级锁闭装置、漏斗车底门及漏斗车 |
CN104228856B (zh) * | 2014-09-19 | 2016-08-24 | 中车长江车辆有限公司 | 一种锁钩式漏斗车底门二级锁闭装置及漏斗车 |
CN105569488B (zh) * | 2015-12-29 | 2017-09-26 | 中车齐齐哈尔车辆有限公司 | 一种铁路货车及其传动轴止挡装置 |
CN107630618B (zh) * | 2017-09-14 | 2019-05-03 | 乌鲁木齐城市轨道集团有限公司 | 紧急疏散门开门机构和城轨车辆 |
CN109864476B (zh) * | 2019-03-21 | 2022-01-25 | 北京金隅天坛家具股份有限公司 | 一种自动锁紧椅 |
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2013
- 2013-11-15 CN CN201310571352.8A patent/CN103552565B/zh active Active
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2014
- 2014-11-06 AU AU2014350782A patent/AU2014350782B2/en active Active
- 2014-11-06 WO PCT/CN2014/090411 patent/WO2015070721A1/zh active Application Filing
- 2014-11-06 US US14/758,737 patent/US20160031454A1/en not_active Abandoned
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2017
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113247026A (zh) * | 2021-06-07 | 2021-08-13 | 中车太原机车车辆有限公司 | 一种铁路石砟漏斗车用底门流量控制装置 |
CN113247026B (zh) * | 2021-06-07 | 2023-01-17 | 中车太原机车车辆有限公司 | 一种铁路石砟漏斗车用底门流量控制装置 |
Also Published As
Publication number | Publication date |
---|---|
US20180072333A1 (en) | 2018-03-15 |
US10640133B2 (en) | 2020-05-05 |
AU2014350782A1 (en) | 2015-07-16 |
CN103552565A (zh) | 2014-02-05 |
CN103552565B (zh) | 2016-08-17 |
US20160031454A1 (en) | 2016-02-04 |
AU2014350782B2 (en) | 2016-12-22 |
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