CN113844480B - Touch type railway wagon top cover control device - Google Patents
Touch type railway wagon top cover control device Download PDFInfo
- Publication number
- CN113844480B CN113844480B CN202111107587.2A CN202111107587A CN113844480B CN 113844480 B CN113844480 B CN 113844480B CN 202111107587 A CN202111107587 A CN 202111107587A CN 113844480 B CN113844480 B CN 113844480B
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- Prior art keywords
- top cover
- control device
- contact
- railway wagon
- push rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000005484 gravity Effects 0.000 claims abstract description 27
- 230000009471 action Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 210000000003 hoof Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D39/00—Wagon or like covers; Tarpaulins; Movable or foldable roofs
- B61D39/006—Opening and closing means
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention provides a touching type railway wagon top cover control device, which comprises: the front end of the contact is provided with a roller which is used for contacting with a stop block of the top cover of the railway wagon; the push rod mechanism is movably connected with the middle part of the rear end of the contact, and can push the contact to move forwards and backwards; the pulley mechanism comprises two ropes and a plurality of fixed pulleys, one ends of the two ropes are respectively connected to two sides of the rear end of the contact, the other ends of the two ropes bypass the fixed pulleys and are connected with a gravity adjusting structure, and a buffer mechanism is arranged below the gravity adjusting structure. The technical scheme of the invention has the beneficial effects that the control device drives the movable top cover of the railway wagon to be opened and closed by utilizing the action force of the running of the vehicle, and the air cylinder is adopted to drive the contact to stretch and contract, so that the pneumatic element acts more rapidly compared with the electric control element.
Description
Technical Field
The invention belongs to the technical field of railway wagons, and particularly relates to a touch type railway wagon top cover control device.
Background
In recent years, a movable top cover is additionally arranged on a carriage in order to avoid environmental pollution such as throwing, dust raising and the like caused by cargoes carried in the running process of the railway wagon. The opening and closing control of the movable top cover has two forms: firstly, the control is carried out through a driving mechanism carried by a truck, and a driving mechanism and a transmission mechanism which are required by opening and closing of a movable top cover are required to be installed on each carriage, so that the weight and the cost of the truck body are increased, and the transportation economy is reduced; secondly, set up controlling means on ground, current controlling means generally need set up two sets of mechanisms, control the top cap respectively and open or close, and is comparatively complicated, and its accessory that plays the effect of blockking is mostly elastic component such as spring in addition, and its resistance can produce the change along with the compression volume difference of spring, is unfavorable for the adjustment.
Accordingly, improvements in the art are needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention designs the touch type railway wagon top cover control device which can touch the stop block arranged on the movable top cover through the contact with the roller and drive the movable top cover of the railway wagon to open and close by utilizing the action force of the running of the vehicle; the pulley mechanisms of the two ropes are arranged on two sides of the contact, and the switching of opening and closing of the movable top cover can be realized only by changing the running direction of the vehicle; the balancing weight is designed to provide a blocking force for the control device, and the driving force required by opening and closing of the top cover can be adjusted by adjusting the number of the balancing weight.
In order to achieve the above object, the technical scheme of the present invention is as follows:
a touch railway wagon roof control device comprising:
The front end of the contact is provided with a roller which is used for contacting with a stop block of the top cover of the railway wagon;
the push rod mechanism is movably connected with the middle part of the rear end of the contact, and can push the contact to move forwards and backwards;
The pulley mechanism comprises two ropes and a plurality of fixed pulleys, one ends of the two ropes are respectively connected to two sides of the rear end of the contact, and the other ends of the two ropes bypass the fixed pulleys and are connected with a gravity adjusting structure.
Preferably, the contact comprises a transverse plate part and a protruding part arranged at the front end of the transverse plate part, the roller is arranged at the front end of the protruding part, the push rod mechanism is hinged with the middle part of the rear end of the transverse plate part, and one ends of the two ropes are respectively connected with two sides of the rear end of the transverse plate part.
Preferably, the lengths of both said ropes are equal.
Preferably, the push rod mechanism includes:
the device comprises a bracket, a push rod and a cylinder, wherein the cylinder is fixed on the bracket, one end of the cylinder is connected with the push rod, and one end of the push rod is hinged with the contact.
Preferably, a plurality of rollers are arranged between the lower part of the push rod and the bracket.
Preferably, the device further comprises a limiting mechanism, wherein the limiting mechanism comprises:
The device comprises a support, a transverse limiting plate and a longitudinal limiting plate, wherein the transverse limiting plate and the longitudinal limiting plate are respectively connected with the support, the transverse limiting plate is arranged on two sides of the push rod, and the longitudinal limiting plate is arranged on the upper portion of the push rod.
Preferably, the gravity adjusting structure comprises:
The chain shoe ring is connected with the rope, the other end of the chain shoe ring is connected with the screw rod,
The balancing weight middle part is equipped with the round hole, the screw rod wears to establish in the balancing weight, fixation nut sets up the both sides of balancing weight.
Preferably, limiting plates are arranged on two sides of the balancing weight.
Preferably, the touch type railway wagon top cover control device is arranged on two sides or one side of a railway wagon running track.
The technical proposal of the invention has the beneficial effects that,
1. The touch type railway wagon top cover control device pushes the contact to touch the baffle plate arranged on the movable top cover of the railway wagon through the push rod mechanism, the movable top cover of the railway wagon is driven to open and close by utilizing the action force of the running of the vehicle, and the cylinder is adopted to drive the contact to stretch and retract, so that the action of the pneumatic element is quicker compared with that of the electric control element.
2. The two lateral sides of the push rod of the touch type wagon top cover control device are provided with the limiting plates, so that the acting force of the movable top cover of the vehicle on the control device is born, and the touch type wagon top cover control device is more stable and reliable; the push rod is longitudinally provided with a limiting plate, so that the lap joint amount of the contact and the movable top cover baffle can be accurately controlled.
3. The contact type railway wagon top cover control device is characterized in that the balancing weight is used for providing the rotation resistance of the contact, the driving force required by opening and closing of the top cover is matched by adjusting the number of the balancing weight, and the rotation resistance of the contact is convenient to adjust.
4. Limiting plates are arranged on two sides of the balancing weight, the balancing weight can only do vertical linear motion under the constraint of the limiting plates, and dangers can not occur due to swing.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
FIG. 1 shows a schematic structural view of a touch railway wagon roof control device of the present invention;
FIG. 2 is a schematic view showing the structure of a gravity adjusting structure of a touch type railway wagon roof control device according to the present invention;
FIG. 3a is a schematic view showing the effect of a touch railway wagon roof control device according to the present invention before a contact is overlapped with a stopper in the direction of travel of the wagon;
FIG. 3b is a schematic view showing the effect of the touch rail wagon roof control device of the present invention in the overlap of the contact and the stop block in the direction of travel of the vehicle;
fig. 3c shows a schematic view of the effect of the touch railway wagon roof control device according to the invention after the contact has been overlapped with the stop block in the direction of travel of the vehicle.
Reference numerals illustrate:
1. A contact; 11. a cross plate portion; 12. a boss; 2. a roller; 3. a rope; 4. a fixed pulley; 5. a buffer mechanism; 6. a push rod mechanism; 61. a bracket; 62. a push rod; 63. a cylinder; 64. a roller; 65. a transverse limiting plate; 66. a longitudinal limiting plate; 7. a gravity adjusting structure; 71 balancing weight; 72. a fixing nut; 73. a screw; 74. chain hoof rings; 8. and a stop block.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring to fig. 1 and 3a-3c, a touch railway wagon roof control device comprises:
the contact 1, the front end of the contact 1 has gyro wheel 2, gyro wheel 2 is used for contacting with stop block 8 of the top cover of the goods train;
The push rod mechanism 6 is movably connected with the middle part of the rear end of the contact 1, and the push rod mechanism 6 can push the contact 1 to move forwards and backwards;
The pulley mechanism comprises two ropes 3 and a plurality of fixed pulleys 4, one ends of the two ropes 3 are respectively connected to two sides of the rear end of the contact 1, and the other ends of the two ropes 3 bypass the fixed pulleys 4 and are connected with a gravity adjusting structure 7.
Specifically, the touch type railway wagon top cover control device touches a stop block 8 arranged on a movable top cover of a railway wagon through a roller 2 at the front end of a contact 1, and drives the movable top cover to open and close by utilizing the action force of vehicle travelling. The device adopts two sets of rope pulley mechanisms to be arranged on two sides of the device, two ends of a rope 3 are respectively and independently connected with a contact 1 and a gravity adjusting structure 7, when the device acts with a stop block 8 on a movable top cover, the control requirement of opening and closing of a top cover of a vehicle can be met only by pulling the contact 1 through the rope pulley mechanism on one side, and the switching of opening and closing of the movable top cover can be realized only by changing the travelling direction of the vehicle. The gravity adjusting structure 7 provides the rotation resistance of the contact 1 for the control device, and the driving force required by opening and closing of the movable top cover is matched by adjusting the quantity of balancing weights of the gravity adjusting structure 7 and adjusting the rotation resistance.
The rubber buffer mechanism 5 is arranged below the gravity adjusting structure 7, and can play a role in buffering when falling, so that the stress of the rope 3 is reduced and the noise is reduced.
In a preferred example, the contact 1 includes a cross plate 11 and a boss 12 provided at a front end of the cross plate 11, the roller 2 is provided at a front end of the boss 12, the push rod mechanism 6 is hinged to a middle portion of a rear end of the cross plate 11, and one ends of the two ropes 3 are respectively connected to both sides of the rear end of the cross plate 11.
Specifically, the front end of bellying 12 of contact 1 is equipped with gyro wheel 2, the rear end middle part of the diaphragm portion 11 of contact 1 is articulated with push rod 62 of push rod mechanism 6, the both sides of diaphragm portion 11 rear end are equipped with chain hoof ring and connect pulley mechanism's rope 3, rope 3 extends to push rod mechanism 6's cylinder 63 direction level along push rod mechanism 6's both sides, accomplish the back downwardly extending that changes directions on locating the fixed pulley 4 of support 61 on the middle part of the device respectively, pull gravity adjusting structure 7 in the vertical direction of gravity through the guide way that sets up on support 61, be equipped with the wall in the guide way, can avoid two strands of rope 3 winding, guarantee the transmission performance of rope 3.
In a preferred example, the lengths of the two ropes 3 are equal.
In particular, the ropes 3 are steel wire ropes, the two steel wire ropes being of equal length, so that the contact 1 is in a balanced position.
In a preferred example, the push rod mechanism 6 includes:
the device comprises a bracket 61, a push rod 62 and an air cylinder 63, wherein the air cylinder is fixed on the bracket 61, one end of the air cylinder 63 is connected with the push rod 62, and one end of the push rod 62 is hinged with the contact 1.
Specifically, the cylinder 63 is used to drive the expansion and contraction of the contact 1, and the pneumatic element acts more rapidly than the electric control element.
In a preferred embodiment, a plurality of rollers 64 are provided between the lower portion of the push rod 62 and the bracket 61.
Specifically, the roller 64 is installed below the push rod 62, so that friction force when the push rod 62 moves forward and backward can be reduced.
A preferred example further includes a limiting mechanism, the limiting mechanism including:
The transverse limiting plate 65 and the longitudinal limiting plate 66 are respectively connected with the support 61, the transverse limiting plate 65 is arranged on two sides of the push rod 62, and the longitudinal limiting plate 66 is arranged on the upper portion of the push rod 62.
Specifically, the push rod 62 can only move linearly back and forth under the drive of the cylinder 63 under the restraint of the lateral limiting plates 65 on the left and right sides of the push rod 62 and the upper longitudinal limiting plate 66.
Further, the transverse limiting plates 65 on the two transverse sides of the push rod 62 can bear the acting force of the movable top cover of the vehicle on the control device, so that the control device is more stable and reliable; the longitudinal limiting plate 66 above the push rod 62 can precisely control the overlap joint amount of the contact 1 and the stop block 8 on the movable top cover.
Referring to fig. 2, a preferred example of the gravity adjusting structure 7 includes:
The chain shoe ring 74 is connected to the chain shoe ring 74 through the rope 3, the screw 73 is connected to the other end of the chain shoe ring 74, a round hole is formed in the middle of the balancing weight 71, the screw 73 penetrates through the balancing weight 71, and the fixing nuts 72 are arranged on two sides of the balancing weight 71.
Specifically, a round hole is formed in the middle of the balancing weight 71, a screw 73 penetrates through the round hole, a fixing nut 72 is respectively installed on the upper portion and the lower portion of the balancing weight 71 to fix the round hole, and the total weight of the gravity adjusting structure 7 can be determined by adjusting the number of the balancing weights 71 so as to adjust the rotation resistance of the contact 1.
In a preferred example, the two sides of the weight 71 are provided with limiting plates.
Specifically, limiting plates are arranged on two sides of the balancing weight 71, and the balancing weight 71 can only do vertical linear motion under the constraint of the limiting plates, so that dangers can not occur due to swinging.
In a preferred example, the touch railway wagon roof control device is arranged on both sides or on one side of the railway wagon running track.
Specifically, the main components of the control device are made of metal plates, the production process is simple, round pins or bolts are adopted to connect the components, and the control device can be arranged on two sides of a rail of a railway wagon or on one side of the rail independently according to the transmission mechanism of the movable top cover.
Examples
Referring to fig. 1-2 and 3a-3c, the present embodiment provides a touch type wagon top cover control device, including:
the contact 1, the front end of the contact 1 has gyro wheel 2, gyro wheel 2 is used for contacting with stop block 8 of the top cover of the goods train;
The push rod mechanism 6 is movably connected with the middle part of the rear end of the contact 1, and the push rod mechanism 6 can push the contact 1 to move forwards and backwards;
the pulley mechanism comprises two ropes 3 and a plurality of fixed pulleys 4, one ends of the two ropes 3 are respectively connected to two sides of the rear end of the contact 1, the other ends of the two ropes 3 bypass the fixed pulleys 4 and are connected with a gravity adjusting structure 7, a buffer mechanism 5 is arranged below the gravity adjusting structure 7, and the lengths of the two ropes 3 are equal;
The contact 1 comprises a transverse plate part 11 and a protruding part 12 arranged at the front end of the transverse plate part 11, the roller 2 is arranged at the front end of the protruding part 12, the push rod mechanism 6 is hinged with the middle part of the rear end of the transverse plate part 11, and one ends of two ropes 3 are respectively connected with two sides of the rear end of the transverse plate part 11;
The push rod mechanism 6 includes:
The device comprises a bracket 61, a push rod 62 and an air cylinder 63, wherein the air cylinder is fixed on the bracket 61, one end of the air cylinder 63 is connected with the push rod 62, one end of the push rod 62 is hinged with the contact 1, and a plurality of rollers 64 are arranged between the lower part of the push rod 62 and the bracket 61;
still include stop gear, stop gear includes:
the transverse limiting plate 65 and the longitudinal limiting plate 66 are respectively connected with the bracket 61, the transverse limiting plate 65 is arranged on two sides of the push rod 62, and the longitudinal limiting plate 66 is arranged on the upper part of the push rod 62;
the gravity adjusting structure 7 includes:
The chain shoe ring 74 is connected with the rope 3, the other end of the chain shoe ring 74 is connected with the screw 73, a round hole is formed in the middle of the balancing weight 71, the screw 73 penetrates through the balancing weight 71, the fixing nuts 72 are arranged on two sides of the balancing weight 71, and limiting plates are arranged on two sides of the balancing weight 71;
The control device is arranged at two sides or one side of a rail for a railway wagon, when the control device is in an initial position, the air cylinder 63 does not extend, the contact 1 is positioned outside the limit of the railway vehicle, the normal passing of the railway vehicle is not influenced, the balancing weight 71 falls on the buffer mechanism 5 at the moment, and other parts are not stressed; when in the working position, the air cylinder 63 pushes the push rod 62 forward to push the contact 1 to extend, the counterweight 71 is connected with the contact 1 by the pulley mechanism and pulled up simultaneously to be separated from the buffer mechanism 5, and as the two sides of the rear end of the contact 1 are respectively provided with the steel wire ropes 3 connected with the counterweight 71, the lengths of the two steel wire ropes are equal, and the contact 1 is in the balance position, as shown in fig. 3 a. When the vehicle passes through, the contact 1 is overlapped with the stop block 8 on the movable top cover, the gravity of the balancing weight 71 is larger than the resistance required for opening the movable top cover, the vehicle continues to advance, the movable top cover is blocked, then the movable top cover is opened, when the movable top cover is opened to a limited opening degree, the movable top cover cannot be opened continuously, at the moment, the resistance of the movable top cover is larger than the gravity of the balancing weight 71, and the contact 1 is pushed to rotate around the hinge point, as shown in fig. 3 b. The vehicle continues to advance again, the contact 1 is disengaged from the stop 8 of the mobile roof, and the equilibrium position is restored, as shown in figure 3 c. The roof can be closed by changing the advancing direction of the vehicle, and the principle is the same as that of opening the roof, and is not repeated here.
In summary, the control device is used for controlling the opening and closing of the movable top cover of the railway wagon, and can be arranged at two sides or one side of a track according to the transmission mechanism of the movable top cover, when the control device is in a working position, the cylinder 63 pushes the push rod 62 forward to push the contact 1 to extend, and the roller 2 at the front end of the contact 1 contacts the stop block 8 arranged on the movable top cover of the railway wagon, so that the movable top cover is driven to be opened and closed by utilizing the action force of the running of the vehicle. Two sets of rope pulley mechanisms are arranged on two sides of the device, two ends of a rope 3 are respectively and independently connected with a contact 1 and a gravity adjusting structure 7, when the gravity adjusting structure acts with a stop block 8 on the movable top cover, the control requirement of opening and closing of the top cover of a vehicle can be met by only pulling the contact 1 through the rope pulley mechanism on one side, and the switching of opening and closing of the movable top cover can be realized by changing the travelling direction of the vehicle. The gravity adjusting structure 7 provides the rotation resistance of the contact 1 for the control device, and the driving force required by opening and closing of the movable top cover is matched by adjusting the quantity of balancing weights of the gravity adjusting structure 7 and adjusting the rotation resistance.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (9)
1. A touch railway wagon roof control device, comprising:
The front end of the contact is provided with a roller which is used for contacting with a stop block of the top cover of the railway wagon;
the push rod mechanism is movably connected with the middle part of the rear end of the contact, and can push the contact to move forwards and backwards;
The pulley mechanism comprises two ropes and a plurality of fixed pulleys, one ends of the two ropes are respectively connected to two sides of the rear end of the contact, the other ends of the two ropes bypass the fixed pulleys and are connected with a gravity adjusting structure, and a rubber buffer mechanism is arranged below the gravity adjusting structure.
2. The touch railway wagon top cover control device according to claim 1, wherein the contact comprises a transverse plate portion and a protruding portion arranged at the front end of the transverse plate portion, the roller is arranged at the front end of the protruding portion, the push rod mechanism is hinged with the middle of the rear end of the transverse plate portion, and one ends of two ropes are respectively connected to two sides of the rear end of the transverse plate portion.
3. The touch railway wagon top cover control device of claim 1, wherein the lengths of two of the ropes are equal.
4. The touch railway wagon top cover control device of claim 1, wherein the push rod mechanism comprises:
the device comprises a bracket, a push rod and a cylinder, wherein the cylinder is fixed on the bracket, one end of the cylinder is connected with the push rod, and one end of the push rod is hinged with the contact.
5. The touch railway wagon top cover control device according to claim 4, wherein a plurality of rollers are arranged between the lower part of the push rod and the bracket.
6. The touch railway wagon top cover control device of claim 4, further comprising a limit mechanism, the limit mechanism comprising:
The device comprises a support, a transverse limiting plate and a longitudinal limiting plate, wherein the transverse limiting plate and the longitudinal limiting plate are respectively connected with the support, the transverse limiting plate is arranged on two sides of the push rod, and the longitudinal limiting plate is arranged on the upper portion of the push rod.
7. The touch railway wagon top cover control device of claim 1, wherein the gravity adjustment structure comprises:
The chain shoe ring is connected with the rope, the other end of the chain shoe ring is connected with the screw rod,
The balancing weight middle part is equipped with the round hole, the screw rod wears to establish in the balancing weight, fixation nut sets up the both sides of balancing weight.
8. The touch railway wagon top cover control device according to claim 7, wherein limiting plates are arranged on two sides of the balancing weight.
9. The touch railway wagon top cover control device according to claim 1, wherein the touch railway wagon top cover control device is arranged on two sides or one side of a railway wagon running track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111107587.2A CN113844480B (en) | 2021-09-22 | 2021-09-22 | Touch type railway wagon top cover control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111107587.2A CN113844480B (en) | 2021-09-22 | 2021-09-22 | Touch type railway wagon top cover control device |
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| Publication Number | Publication Date |
|---|---|
| CN113844480A CN113844480A (en) | 2021-12-28 |
| CN113844480B true CN113844480B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111107587.2A Active CN113844480B (en) | 2021-09-22 | 2021-09-22 | Touch type railway wagon top cover control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107628047A (en) * | 2017-09-27 | 2018-01-26 | 株洲华盛实业有限公司 | A kind of method for opening and closing and switching mechanism of railway freight gondola car folding type movable top cover |
| CN108263414A (en) * | 2018-01-17 | 2018-07-10 | 中车齐齐哈尔车辆有限公司 | Railway freight-car head cover opening/closing system and its ground collision head device |
| CN109435997A (en) * | 2018-10-24 | 2019-03-08 | 中车太原机车车辆有限公司 | The collapsible railway freight-car removable top cover of big aperture |
| CN110203227A (en) * | 2019-06-25 | 2019-09-06 | 神华铁路货车运输有限责任公司 | Opposite opened removable top cover and truck |
| CN110203228A (en) * | 2019-06-25 | 2019-09-06 | 神华铁路货车运输有限责任公司 | The control method of movable cover device and movable cover device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051779B2 (en) * | 2008-03-21 | 2011-11-08 | Structural Composites of Indiana, Inc. | Railcar cover |
-
2021
- 2021-09-22 CN CN202111107587.2A patent/CN113844480B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628047A (en) * | 2017-09-27 | 2018-01-26 | 株洲华盛实业有限公司 | A kind of method for opening and closing and switching mechanism of railway freight gondola car folding type movable top cover |
| CN108263414A (en) * | 2018-01-17 | 2018-07-10 | 中车齐齐哈尔车辆有限公司 | Railway freight-car head cover opening/closing system and its ground collision head device |
| CN109435997A (en) * | 2018-10-24 | 2019-03-08 | 中车太原机车车辆有限公司 | The collapsible railway freight-car removable top cover of big aperture |
| CN110203227A (en) * | 2019-06-25 | 2019-09-06 | 神华铁路货车运输有限责任公司 | Opposite opened removable top cover and truck |
| CN110203228A (en) * | 2019-06-25 | 2019-09-06 | 神华铁路货车运输有限责任公司 | The control method of movable cover device and movable cover device |
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| CN113844480A (en) | 2021-12-28 |
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