CN111942413A - Manual opening and closing mechanism of funnel bottom door of stone tiny fragments of stone, coal, etc. car and stone tiny fragments of stone, coal, etc. car - Google Patents

Manual opening and closing mechanism of funnel bottom door of stone tiny fragments of stone, coal, etc. car and stone tiny fragments of stone, coal, etc. car Download PDF

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Publication number
CN111942413A
CN111942413A CN202010812229.0A CN202010812229A CN111942413A CN 111942413 A CN111942413 A CN 111942413A CN 202010812229 A CN202010812229 A CN 202010812229A CN 111942413 A CN111942413 A CN 111942413A
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China
Prior art keywords
closing mechanism
worm
bottom door
manual opening
clutch
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Granted
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CN202010812229.0A
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CN111942413B (en
Inventor
李培
范世良
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CRRC Qiqihar Rolling Stock Co Ltd
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CRRC Qiqihar Rolling Stock Co Ltd
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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
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The invention discloses a manual opening and closing mechanism of a funnel bottom door of a stone ballast vehicle and the stone ballast vehicle. This manual starting and stopping mechanism can open and close the funnel bottom door when automatic starting and stopping mechanism became invalid, owing to do not rely on hydraulic pressure, atmospheric pressure and electrical component completely, so the reliability is than higher, moreover, overall structure is simple compact, the drive ratio is big, have self-locking function to can open and close every run from opposite directions portion of every funnel bottom door alone, thereby can reach the effect of unloading in different positions.

Description

Manual opening and closing mechanism of funnel bottom door of stone tiny fragments of stone, coal, etc. car and stone tiny fragments of stone, coal, etc. car
Technical Field
The invention relates to the technical field of railway operation vehicles, in particular to a stone ballast vehicle and a manual opening and closing mechanism for opening and closing a hopper bottom door of the stone ballast vehicle.
Background
At present, a hopper bottom door of a stone ballast vehicle is generally opened and closed by an automatic opening and closing mechanism, and the automatic opening and closing mechanism realizes the function of opening and closing the bottom door by means of a hydraulic cylinder, a position sensor and an electric control system.
The automatic opening and closing mechanism has certain unreliability, if the automatic opening and closing mechanism fails and the bottom door is in an open state, stone ballast can flow from the bottom door in a large amount, large-area accumulation is caused, and if the vehicle is stopped in time, the vehicle derails or even topples over.
In order to avoid this, it is preferable to provide a set of manual opening and closing mechanism as a spare in addition to the automatic opening and closing mechanism, so that the manual opening and closing mechanism can be used to open or close the bottom door when the automatic opening and closing mechanism fails.
Disclosure of Invention
The invention aims to provide a manual opening and closing mechanism of a funnel bottom door of a ballast vehicle, so that the funnel bottom door can be opened and closed manually under special conditions.
The manual opening and closing mechanism of the funnel bottom door of the stone ballast vehicle is characterized in that the rotatable bottom door is arranged at the bottom of the funnel of the stone ballast vehicle, the manual opening and closing mechanism opens and closes the bottom door through manpower, the manual opening and closing mechanism comprises a transmission shaft, a clutch and a worm and gear assembly, the worm and gear assembly is used for driving the transmission shaft to rotate, and the transmission shaft is in transmission connection with the bottom door through the clutch so as to drive the bottom door to rotate.
Optionally, the clutch includes two clutch portions, which are a first clutch portion and a second clutch portion respectively, the first clutch portion is mounted on the transmission shaft in a synchronous rotation manner, the second clutch portion is mounted on the bottom door in a synchronous rotation manner, and the first clutch portion and/or the second clutch portion can slide along the axial direction of the transmission shaft so as to be engaged with or disengaged from each other.
Optionally, the bottom door is a split door having two split portions, the two split portions adjacently disposed in the longitudinal direction of the vehicle being a set of split portions a, the stone-fry vehicle having a plurality of sets of the split portions a; the manual opening and closing mechanism comprises a plurality of transmission shafts, the number of the transmission shafts is the same as that of the split part group a of the stone frying vehicle, one is respectively installed at two ends of each transmission shaft, one is installed at each split part, the second clutch part is installed at each split part, and the first clutch part and the second clutch part are matched in a one-to-one correspondence mode.
Optionally, all transmission shafts of the manual opening and closing mechanism are parallel to each other, and two first clutch portions on each transmission shaft are respectively matched with two second clutch portions on the same group of the split portion group a.
Optionally, the worm and gear assembly comprises a worm and gear unit, the worm and gear unit comprises a worm and all worm gears meshed with the worm, and the worm gears are sleeved on the transmission shaft in a synchronously rotatable manner; all transmission shafts of the manual opening and closing mechanism are driven to rotate by the same worm and gear unit, or all transmission shafts of the manual opening and closing mechanism are divided into a plurality of groups, and each group is driven to rotate by one worm and gear unit.
Optionally, the manual start-stop mechanism further comprises a hand wheel, the hand wheel is sleeved on the worm in a synchronous rotating mode and used for driving the worm to rotate, and each worm is sleeved with at least one hand wheel.
Optionally, manual starting and stopping mechanism still includes transmission shaft bearing frame and worm bearing frame, the transmission shaft interlude with in the bearing hole of transmission shaft bearing frame, the worm interlude with in the bearing hole of worm bearing frame, the transmission shaft bearing frame with the top of worm bearing frame is equipped with the mounting panel, the mounting panel is used for the frame fixed connection with the stone-fried car.
Optionally, the manual start-stop mechanism further comprises a shifting fork, a shifting fork opening is formed in the clutch portion of the transmission shaft, which slides axially, one end of the shifting fork extends into the shifting fork opening, and the shifting fork portion slides axially along the transmission shaft.
Optionally, the first clutch part is axially slidably mounted on the transmission shaft, and the second clutch part is fixedly mounted on the split part of the bottom door; the split part is provided with a first pin hole, the side wall of the funnel is provided with a second pin hole, and a pin shaft is inserted into the pin holes of the split part and the funnel to connect the split part and the funnel together in a relatively rotatable manner; the second clutch part is fixed at a far-end orifice of the first pin hole of the split part, which is far away from the side wall of the funnel, and blocks the far-end orifice.
The invention also provides a stone ballast vehicle which comprises an automatic opening and closing mechanism and a manual opening and closing mechanism, wherein the automatic opening and closing mechanism and the manual opening and closing mechanism are used for opening and closing the bottom door of the funnel, the manual opening and closing mechanism is any one of the manual opening and closing mechanisms, and the manual opening and closing mechanism is installed at the bottom of the frame of the stone ballast vehicle.
The manual opening and closing mechanism provided by the invention does not rely on hydraulic pressure, air pressure and electric components at all, so that the reliability is higher;
moreover, the manual opening and closing mechanism has a simple and compact integral structure and occupies small arrangement space;
moreover, the manual opening and closing mechanism adopts the worm gear assembly for transmission, so that the transmission ratio is large, labor is saved during operation, and the manual opening and closing mechanism has a self-locking function and can lock the split part at a target position, so that the opening degree is kept on the basis of not additionally arranging a positioning part;
moreover, the manual opening and closing mechanism is arranged at the bottom of the frame, so that an operator can operate the manual opening and closing mechanism by standing on the ground, the operation is more convenient, and the opening condition of the bottom door can be observed in the operation process;
moreover, the manual opening and closing mechanism can independently open and close each split part of each bottom door, so that the effect of discharging at different positions can be achieved;
moreover, the second clutch part of the clutch is specifically fixed at the position, far away from the far-end hole of the side wall of the funnel, of the first pin hole of the split part and blocks the far-end hole of the first pin hole, so that the fixed connection of the second clutch part and the split part is realized, and the pin shaft can be prevented from being separated from the far-end hole of the first pin hole.
Drawings
Fig. 1 is a schematic view of a ballast vehicle provided by the invention;
FIG. 2 is a schematic view of each bottom door and a manual opening and closing mechanism of the ballast vehicle;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of the first clutch part and the second clutch part of the manual opening and closing mechanism in a connected state;
fig. 5 is a sectional view showing a connection position of the second clutch portion of the manual opening and closing mechanism, the half-open portion of the bottom door, and the hopper.
The reference numerals are explained below:
1 bottom door, 11 split part, 11a split part group, 111 first pin hole;
2, a funnel; 3, a pin shaft;
4, a manual opening and closing mechanism, a 41 transmission shaft, a 421 first clutch part, a 422 second clutch part, a 43 worm wheel, a 44 worm, a 45 hand wheel, a 46 transmission shaft bearing seat, a 47 worm bearing seat and a 48 shifting fork;
5, a vehicle frame.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the ballast vehicle is provided with two funnels 2, and the two funnels 2 are arranged at intervals along the longitudinal direction of the vehicle. A manual opening and closing mechanism 4 and an automatic opening and closing mechanism (not shown in the figure) are also arranged, a bottom door 1 is arranged at a discharge port at the bottom of the funnel 2, and the bottom door 1 is rotatably connected on the side wall of the funnel 2. The manual opening and closing mechanism 4 is installed at the bottom of a frame 5 of the ballast vehicle, and can be used for opening and closing a bottom door 1 of the vehicle through manpower. The automatic opening and closing mechanism remotely opens and closes the bottom door 1 of the vehicle through non-manpower such as electric power, hydraulic pressure or air pressure, and the like, is well known by persons skilled in the art, and the structure of the automatic opening and closing mechanism is not described in detail herein. When the bottom door 1 is opened, stone ballast can be discharged through a bottom discharge opening of the funnel 2.
Install manual starting and stopping mechanism 4 in frame 5 bottom, like this, operating personnel stands subaerial and just can operate manual starting and stopping mechanism 4, and need not stand on the car, therefore, it is more convenient to operate, can observe the condition of opening of bottom door 1 in addition in the operation process.
Referring to fig. 2, the bottom of each hopper 2 is provided with two bottom doors 1, the two bottom doors 1 are arranged at intervals along the transverse direction of the vehicle, and in the figure, four bottom doors 1 are provided. The bottom doors 1 are split doors, each bottom door 1 having two split portions 11. Both longitudinal ends of the half-open portion 11 are rotatably attached to the side walls of the hopper 2, and the half-open portion 11 is opened and closed by rotating about the longitudinal direction of the vehicle.
As shown in fig. 5, the split part 11 is rotatably connected to the side wall of the funnel 2 by the following structure: the split part 11 is provided with a first pin hole 111, the side wall of the funnel 2 is provided with a second pin hole, and the pin shaft 3 is inserted into the first pin hole 111 and the second pin hole, so that the split part 11 can rotate relative to the funnel 2 by taking the axis of the pin shaft 3 as a rotation center line. Of course, in practical implementation, the half-portions 11 and the side walls of the hopper 2 may be connected by a rotatable connection, such as a hinge, rivet, or the like.
Referring to fig. 3, the manual opening and closing mechanism 4 includes a transmission shaft 41, a clutch, a worm gear assembly, a transmission shaft bearing seat 46, a worm bearing seat 47, a shift fork 48, a hand wheel 45, and the like.
The transmission shaft 41 is fittingly inserted into a bearing bore of the transmission shaft bearing seat 46, and the transmission shaft 41 is drivingly connected to the half-open portion 11 of the bottom door 1 through a clutch. The drive shaft bearing blocks 46 are mounted to the bottom of the frame 5 by a top mounting plate.
The worm gear and worm assembly comprises a worm 44 and a worm wheel 43 in mesh with each other. The worm 44 is fittingly inserted in a bearing bore of a worm bearing mount 47, the worm bearing mount 47 being mounted to the bottom of the frame 5 by a top mounting plate. The worm wheel 43 can be sleeved on the transmission shaft 41 in a synchronous rotating manner, and the hand wheel 45 can be sleeved on the worm 44 in a synchronous rotating manner. To be noted, in order to mount the two members together so as to be rotatable synchronously, the relative positions of the two members in the rotational direction (i.e., the circumferential direction) are fixed.
As shown in fig. 4, the clutch includes two clutch portions, namely a first clutch portion 421 and a second clutch portion 422. The first clutch portion 421 is installed on the transmission shaft 41 to be synchronously rotatable, and the second clutch portion 422 is installed on the half-open portion 11 of the bottom door 1 to be synchronously rotatable. The first clutch portion 421 and/or the second clutch portion 422 are slidable in the axial direction of the transmission shaft 41, and are slidable to a position where they are engaged with each other or a position where they are disengaged from each other, thereby enabling engagement with or disengagement from each other.
In the figure, the first clutch portion 421 can slide along the axial direction of the transmission shaft 41, and a fork opening is arranged on the periphery of the first clutch portion 421, and one end of the fork 48 extends into the fork opening, so that the first clutch portion 421 can be shifted by the fork 48 to slide axially, and the axial direction of the first clutch portion 421 is more labor-saving than that of directly shifting the first clutch portion 421. The first clutch portion 421 can slide axially, which is relatively convenient to operate.
In the figure, the second clutch portion 422 is fixedly connected to the half-open portion 11 of the bottom door 1, and therefore cannot slide in the axial direction of the transmission shaft 41. As shown in fig. 5, the second clutch part 422 is specifically fixed to the distal end opening of the first pin hole 111 of the split part 11, which is far away from the side wall of the funnel 2, and blocks the distal end opening of the first pin hole 111, so that not only is the fixed connection between the second clutch part 422 and the split part 11 achieved, but also the pin 3 can be prevented from coming out of the distal end opening of the first pin hole 111.
When the bottom door 1 is opened and closed by the automatic opening and closing mechanism, the first clutch part 421 and the second clutch part 422 of the clutch are separated, so that the influence of the manual opening and closing mechanism 4 on the use of the automatic opening and closing mechanism can be avoided.
When the manual opening and closing mechanism 4 is used to open and close the bottom door 1, the first clutch portion 421 is shifted by the manual force through the shifting fork 48, so that the first clutch portion 421 and the second clutch portion 422 are engaged. Then, the hand wheel 45 is driven by manpower to rotate in the forward direction, the hand wheel 45 rotates to drive the worm 44 to rotate so as to drive the worm wheel 43 to rotate so as to drive the transmission shaft 41 to rotate, finally, the split part 11 of the bottom door 1 is driven by the engaged clutch to rotate by taking the axis of the pin shaft 3 as a rotation center line, so that the split part 11 is opened, and on the contrary, the hand wheel 45 is driven by manpower to rotate in the reverse direction so as to close the split part 11.
The manual opening and closing mechanism 4 does not rely on hydraulic pressure, air pressure and electric components at all, so the reliability is higher; moreover, the manual opening and closing mechanism 4 has a simple and compact integral structure and occupies a small arrangement space; moreover, the manual opening and closing mechanism 4 adopts a worm gear assembly for transmission, so that the transmission ratio is large, labor is saved during operation, and the manual opening and closing mechanism has a self-locking function and can lock the split part 11 on a target position, so that the opening degree is kept on the basis of not additionally arranging a positioning part; moreover, the manual opening and closing mechanism 4 is arranged at the bottom of the frame 5, so that an operator can operate the manual opening and closing mechanism 4 when standing on the ground, the operation is more convenient, and the opening condition of the bottom door 1 can be observed in the operation process.
Specifically, referring to fig. 2 and 3, the manual opening and closing mechanism 4 includes a plurality of transmission shafts 41, and the number of the transmission shafts 41 is the same as the number of the corresponding pair of doors of the hopper 2. In the figure, eight split portions 11 are provided in total, and each two split portions 11 adjacent in the vehicle longitudinal direction are a split group 11a in one set, so four split groups 11a are provided in total, and therefore, four propeller shafts 41 are provided in total. In practice, the number of the split groups 11a is not limited to four, and when the number of the split groups 11a is changed, the number of the transmission shafts 41 also needs to be changed.
As shown in fig. 2 and 3, a first clutch portion 421 is respectively installed at both ends of each transmission shaft 41, a second clutch portion 422 is respectively installed on each bisecting portion 11, and the first clutch portions 421 and the second clutch portions 422 are correspondingly engaged with each other. Set up like this, every of vehicle to opening 11 all can be opened and close alone to can reach the effect of unloading in different positions.
In the figure, all the transmission shafts 41 of the manual opening and closing mechanism 4 are parallel to each other, and two first clutch portions 421 on each transmission shaft 41 are respectively matched with two second clutch portions 422 on one group of the split portions 11. The arrangement is convenient for arrangement, and the arrangement space is saved.
With continued reference to fig. 2 and 3, the worm gear assembly includes two worm gear units, each consisting of a worm 44 and two worm wheels 43 meshing with the worm 44. In the figure, four transmission shafts 41 of the manual opening and closing mechanism 4 are divided into two groups, two of one side are one group, two of the other side are the other group along the transverse direction of the vehicle, and the two groups are respectively driven to rotate by the two worm gear units, so that the two worms 44 are not required to be too long, and the strength is easy to ensure. In the figure, the outer ends of the two worms 44 are each fitted with a hand wheel 45 for operating the two worms 44 on either side of the vehicle.
Of course, in practical implementation, it is also possible to make four transmission shafts 41 rotate by the same worm and gear unit, in this case, the number of the worm gears 43 of the worm and gear unit is four, that is, four worm gears 43 are meshed with one worm 44 at the same time.
The manual opening and closing mechanism of the funnel bottom door of the ballast vehicle and the ballast vehicle are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. Manual starting and stopping mechanism of funnel bottom door of stone tiny fragments of stone, coal, etc. car, funnel (2) bottom of stone tiny fragments of stone, coal, etc. car is equipped with rotatable bottom door (1), its characterized in that, manual starting and stopping mechanism (4) are opened and close through the manpower bottom door (1), manual starting and stopping mechanism (4) are including transmission shaft (41), clutch and worm gear subassembly, worm gear subassembly is used for driving transmission shaft (41) rotate, transmission shaft (41) pass through the clutch with bottom door (1) transmission is connected, in order to drive bottom door (1) rotates.
2. The manual opening and closing mechanism of the hopper bottom door of the ballast car according to claim 1, wherein the clutch comprises two clutch portions, namely a first clutch portion (421) and a second clutch portion (422), the first clutch portion (421) is installed on the transmission shaft (41) in a synchronous rotating manner, the second clutch portion (422) is installed on the bottom door (1) in a synchronous rotating manner, and the first clutch portion (421) and/or the second clutch portion (422) can slide along the axial direction of the transmission shaft (41) so as to be engaged with or disengaged from each other.
3. The manual opening and closing mechanism of the hopper bottom door of the ballast car according to claim 2, wherein the bottom door (1) is a split door with two split parts (11), the two split parts (11) adjacently arranged in the longitudinal direction of the car are a group of split part groups (11a), and the ballast car is provided with a plurality of groups of the split part groups (11 a); manual start/stop gear (4) include many transmission shafts (41), the radical of transmission shaft (41) with the fried car the group number of run-to-run portion group (11a) is the same, every one is respectively installed at the both ends of transmission shaft (41) first separation and reunion portion (421), every respectively install one on run-to-run portion (11) second separation and reunion portion (422), first separation and reunion portion (421) with second separation and reunion portion (422) one-to-one cooperation.
4. The manual opening and closing mechanism of the hopper bottom door of the ballast car according to claim 3, wherein all transmission shafts (41) of the manual opening and closing mechanism (4) are parallel to each other, and two first clutch portions (421) on each transmission shaft (41) are respectively matched with two second clutch portions (422) on the same split portion group (11 a).
5. The manual opening and closing mechanism for the hopper bottom door of the ballast car according to claim 3, wherein the worm gear assembly comprises a worm gear unit, the worm gear unit comprises a worm (44) and all worm gears (43) meshed with the worm gear unit, and the worm gears (43) are sleeved on the transmission shaft (41) in a synchronously rotatable manner; all transmission shafts (41) of the manual opening and closing mechanism (4) are driven to rotate by the same worm and gear unit, or all transmission shafts (41) of the manual opening and closing mechanism (4) are divided into a plurality of groups, and each group is driven to rotate by one worm and gear unit.
6. The manual opening and closing mechanism of the hopper bottom door of the ballast vehicle according to any one of claims 1 to 5, wherein the manual opening and closing mechanism (4) further comprises a hand wheel (45), the hand wheel (45) is synchronously rotatably sleeved on a worm (44) of the worm and gear assembly and used for driving the worm (44) to rotate, and each worm (44) is sleeved with at least one hand wheel (45).
7. The manual opening and closing mechanism of the hopper bottom door of the ballast car according to any one of claims 1 to 5, wherein the manual opening and closing mechanism (4) further comprises a transmission shaft bearing seat (46) and a worm bearing seat (47), the transmission shaft (41) is inserted into a bearing inner hole of the transmission shaft bearing seat (46) in a matching manner, the worm (44) of the worm and gear assembly is inserted into a bearing inner hole of the worm bearing seat (47) in a matching manner, and mounting plates are arranged at the tops of the transmission shaft bearing seat (46) and the worm bearing seat (47) and used for being fixedly connected with a frame (5) of the ballast car.
8. The manual opening and closing mechanism of the hopper bottom door of the ballast car according to any one of claims 2 to 5, wherein the manual opening and closing mechanism (4) further comprises a shifting fork (48), a shifting fork opening is formed in the clutch portion capable of sliding along the axial direction of the transmission shaft (41), and one end of the shifting fork (48) extends into the shifting fork opening so as to shift the clutch portion to slide along the axial direction of the transmission shaft (41).
9. The manual opening and closing mechanism of the hopper bottom door of the ballast car according to any one of claims 3 to 5, wherein the first clutch part (421) is axially slidably mounted on the transmission shaft (41), and the second clutch part (422) is fixedly mounted on the split part (11) of the bottom door (1); a first pin hole (121) is formed in the split part (11), a second pin hole is formed in the side wall of the funnel (2), and a pin shaft (3) is inserted into the pin holes of the split part and the funnel to connect the split part and the funnel in a relatively rotatable manner; the second clutch part (422) is fixed at a distal end orifice of the first pin hole (111) of the split part (11) far away from the side wall of the funnel (2) and blocks the distal end orifice.
10. The ballast car is characterized by comprising an automatic opening and closing mechanism and a manual opening and closing mechanism, wherein the automatic opening and closing mechanism and the manual opening and closing mechanism are used for opening and closing a bottom door (1) of a funnel (2), the manual opening and closing mechanism is the manual opening and closing mechanism (4) according to any one of claims 1-9, and the manual opening and closing mechanism (4) is installed at the bottom of a frame (5) of the ballast car.
CN202010812229.0A 2020-08-13 2020-08-13 Manual opening and closing mechanism of hopper bottom door of stone ballast vehicle and stone ballast vehicle Active CN111942413B (en)

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CN202010812229.0A CN111942413B (en) 2020-08-13 2020-08-13 Manual opening and closing mechanism of hopper bottom door of stone ballast vehicle and stone ballast vehicle

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CN111942413B CN111942413B (en) 2023-05-23

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Publication number Priority date Publication date Assignee Title
EP0193497A2 (en) * 1985-02-12 1986-09-03 S.p.A. CASSEFORME METALLICHE E AFFINI S.A.C.M.A. Hopper car with multiple bins having separate discharge drives
CN2165035Y (en) * 1993-06-12 1994-05-18 鞍山钢铁公司 Automotive door self-opening preventing device
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
CN104527672A (en) * 2014-12-29 2015-04-22 江苏瑞铁轨道装备有限公司 Locking device of hopper car bottom door
CN104973081A (en) * 2015-07-29 2015-10-14 南车眉山车辆有限公司 Railway hopper car unloading device
CN206141551U (en) * 2016-11-07 2017-05-03 中车山东机车车辆有限公司 Stone tiny fragments of stone, coal, etc. hopper car bottom door device
CN209274594U (en) * 2018-12-11 2019-08-20 中车眉山车辆有限公司 A kind of hopper wagon side door open and close system
CN110293981A (en) * 2019-05-31 2019-10-01 中车山东机车车辆有限公司 A kind of automobile-used switching mechanism of railway stone tiny fragments of stone, coal, etc. funnel and method
CN110466546A (en) * 2019-07-29 2019-11-19 中车太原机车车辆有限公司 A kind of limiting device for hopper wagon bottom door switching mechanism

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193497A2 (en) * 1985-02-12 1986-09-03 S.p.A. CASSEFORME METALLICHE E AFFINI S.A.C.M.A. Hopper car with multiple bins having separate discharge drives
CN2165035Y (en) * 1993-06-12 1994-05-18 鞍山钢铁公司 Automotive door self-opening preventing device
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
CN104527672A (en) * 2014-12-29 2015-04-22 江苏瑞铁轨道装备有限公司 Locking device of hopper car bottom door
CN104973081A (en) * 2015-07-29 2015-10-14 南车眉山车辆有限公司 Railway hopper car unloading device
CN206141551U (en) * 2016-11-07 2017-05-03 中车山东机车车辆有限公司 Stone tiny fragments of stone, coal, etc. hopper car bottom door device
CN209274594U (en) * 2018-12-11 2019-08-20 中车眉山车辆有限公司 A kind of hopper wagon side door open and close system
CN110293981A (en) * 2019-05-31 2019-10-01 中车山东机车车辆有限公司 A kind of automobile-used switching mechanism of railway stone tiny fragments of stone, coal, etc. funnel and method
CN110466546A (en) * 2019-07-29 2019-11-19 中车太原机车车辆有限公司 A kind of limiting device for hopper wagon bottom door switching mechanism

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