CN217455981U - Pull-type shear type telescopic ceiling covering open carriage - Google Patents
Pull-type shear type telescopic ceiling covering open carriage Download PDFInfo
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- CN217455981U CN217455981U CN202123369541.6U CN202123369541U CN217455981U CN 217455981 U CN217455981 U CN 217455981U CN 202123369541 U CN202123369541 U CN 202123369541U CN 217455981 U CN217455981 U CN 217455981U
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Abstract
The utility model discloses a traction type scissor type telescopic ceiling covering an open carriage, which comprises a scissor type telescopic frame, a tarpaulin covered on the scissor type telescopic frame and capable of stretching along with the scissor type telescopic frame, and guide rails arranged at the top parts of the side walls at the two sides of the open carriage; one end of the scissor type telescopic frame is a fixed end, the other end of the scissor type telescopic frame is a telescopic end, the fixed end is fixed at one end of the carriage, and two sides of the scissor type telescopic frame slide on guide rails at two sides of the open carriage; the telescopic end of the scissor type telescopic frame is provided with a driving mechanism, two sides of the telescopic end are respectively provided with driving wheels which run on the left guide rail and the right guide rail and are driven by the driving mechanism, and the driving wheels on the guide rails on the two sides synchronously rotate to push the scissor type telescopic frame to extend or retract. The scissor type telescopic ceiling has the advantages that one end of the scissor type telescopic ceiling can be extended and contracted in place, and particularly when the front scissor type telescopic ceiling and the rear scissor type telescopic ceiling are oppositely folded, a closed gap caused by the fact that the front scissor type telescopic ceiling and the rear scissor type telescopic ceiling are not folded in place can be avoided.
Description
Technical Field
The utility model relates to a pull-type shear type telescopic ceiling covering an open carriage belongs to the technical field of open carriage covering.
Background
An open wagon of a freight train is a wagon having front and rear end walls, two side walls, a floor and no roof wall. The freight train with the carriage opened upwards is mainly used for conveying bulk goods such as coal, ore, mineral materials, wood, steel and the like, and can also be used for conveying mechanical equipment with small weight. Therefore, the open wagon has great versatility, and the number is the largest in wagon compositions. In order to prevent coal and other objects in the compartment from falling down the line and to prevent the carried objects from getting wet by rain while the freight open wagon is in transit, it is generally necessary to cover the top of the compartment with canvas or other coverings. In the past, covering or disassembling canvas on the top of a carriage is finished manually, but the operation is carried out, so that the labor intensity of workers is high, and the working efficiency is low. For this reason, in recent decades, covering curtains have been designed which can be opened automatically.
The front piece roller shutter and the rear piece roller shutter which are arranged at the top of the carriage in tandem are covered by the covering curtain, the two sides of the two roller shutters slide forwards and backwards by taking the top edges of the left side wall and the right side wall of the carriage as a track respectively, the two sides of the rear end of the front piece roller shutter and the two sides of the front end of the rear piece roller shutter are provided with shifting columns respectively, and the shifting columns are shifted by shifting mechanisms arranged at the two sides of the station track, so that the front piece roller shutter and the rear piece roller shutter can be pushed to slide forwards and backwards. When the folding type front piece rolling curtain is applied, under the action of the toggle mechanism, the rear end of the front piece rolling curtain and the front end of the rear piece rolling curtain are respectively folded towards the middle of the carriage from the rear end of the carriage in opposite directions, namely the carriage is covered; the rear end of the front piece roller shutter and the front end of the rear piece roller shutter are respectively pulled back from the middle of the carriage to the two ends of the carriage respectively, namely the carriage is pushed upwards and opened.
Among the prior art, the end at both ends is equipped with the winding mechanism of front piece roller shutter and the spring coiling mechanism of back piece roller shutter respectively around the carriage, and its defect lies in: firstly, set up the spring coiling mechanism that the curtain was rolled up to the anter and the spring coiling mechanism that the curtain was rolled up to the back part outside the end wall at both ends around the carriage respectively, shortened the length in carriage, actually crowded the content space who has occupied the carriage. And secondly, the spring mechanism has a complex structure, is easy to break down and is not easy to maintain and replace.
In order to solve the above problems, the prior art has started to research and use a scissor type retractable ceiling, which is generally divided into a front retractable ceiling and a rear retractable ceiling, wherein the front end of the front retractable ceiling and the rear end of the rear retractable ceiling are respectively fixed at the front end and the rear end of the open car, and propulsion cylinders (oil cylinder, air cylinder or electric cylinder) are respectively installed at the front end of the front retractable ceiling and the rear end of the rear retractable ceiling, and the front retractable ceiling and the rear retractable ceiling are extended to be in butt joint with each other by using the respective propulsion cylinders, so as to cover the open car. When the open carriage needs to be opened for loading and unloading goods, the front telescopic ceiling and the rear telescopic ceiling retract by utilizing respective pushing cylinders, so that the open carriage is opened.
The scissor type telescopic ceiling is opened by utilizing the principle of the scissor type telescopic frame, namely, the telescopic deformation of one diamond section of the scissor type telescopic frame can make the plurality of diamond sections associated with the diamond section deform in a driven telescopic manner. Due to the fact that the length of a push rod of the push cylinder is limited, pushing on the shear type telescopic ceiling is limited to one or more diamond sections which the push rod reaches, and the rest diamond sections are opened in a driven mode. Because the front telescopic ceiling and the rear telescopic ceiling are too long, the diamond sections are too many, and the diamond sections which need to be driven to synchronously stretch are also many, so that the requirements on the structural strength of the frame body and the smoothness of the sliding track are extremely high. If the sliding track is slightly blocked by sundries, or the track deforms, or the sliding wheel is difficult to rotate, the frame body of the scissor type telescopic ceiling deforms and is difficult to push in place, and especially the diamond section directly applied with acting force by the push rod deforms and is damaged when the resistance is too large.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to solve the problem that the frame body of the scissor type telescopic ceiling is difficult to propel in place due to the fact that the length of a propelling rod of a propelling cylinder used in the open carriage is limited when propelling is not smooth.
The invention contents of the utility model are:
a traction type scissor type telescopic ceiling covering an open carriage comprises a scissor type telescopic frame, a tarpaulin and guide rails, wherein the tarpaulin is covered on the scissor type telescopic frame and can be stretched along with the scissor type telescopic frame; one end of the scissor type telescopic frame is a fixed end, the other end of the scissor type telescopic frame is a telescopic end, the fixed end is fixed at one end of the carriage, and two sides of the scissor type telescopic frame slide on guide rails at two sides of the open carriage; the telescopic end of the scissor type telescopic frame is provided with a driving mechanism, two sides of the telescopic end are respectively provided with driving wheels which run on the guide rails at the left side and the right side and are driven by the driving mechanism, and the driving wheels on the guide rails at the two sides synchronously rotate to push the scissor type telescopic frame to extend or retract.
Further, the driving mechanism comprises a power device and a transmission device, and the power device drives the driving wheel through the transmission device.
Further, the power device is a pneumatic motor or an electric motor.
Furthermore, the power device is arranged in the middle of the telescopic end of the scissor type telescopic frame, and the transmission device comprises transmission shafts which transmit power from the power device to the left driving wheel and the right driving wheel respectively.
Furthermore, the transmission device also comprises a transfer frame which is respectively arranged at the outer end parts of the transmission shafts at the two sides, the transfer frame is provided with two transfer shafts which are arranged in front and at the back, and the transfer shafts are linked with the transmission shafts; two driving wheels are respectively arranged on the guide rails on the two sides, and the two driving wheels on one side are respectively arranged on the two branch shafts of the branch frame.
Furthermore, the two split shafts of the split frame are respectively a first split shaft and a second split shaft; the transmission shaft is provided with a chain wheel, the first split shaft is provided with two chain wheels, the second split shaft is provided with a chain wheel, one chain wheel of the first split shaft and the chain wheel of the transmission shaft are in chain transmission, and the other chain wheel of the first split shaft and the chain wheel of the second split shaft are in chain transmission.
Furthermore, the guide rail is provided with a walking rail surface with the top facing upwards and a limiting rail surface with the outer side facing downwards, and the driving wheels walk on the walking rail surface.
Furthermore, sliding wheels running on the running track surface of the guide rail are arranged below the frame body from the transfer frames on the two sides of the scissor type telescopic frame to the fixed end.
Furthermore, vertical limiting rods which are folded inwards from the outer sides of the guide rails are further arranged on two sides of the scissor type telescopic frame, and vertical limiting wheels which run on the limiting rail surface are arranged on the vertical limiting rods.
Furthermore, the two sides of the scissor type telescopic frame are also provided with transverse limiting rods which are folded inwards from the outer sides of the guide rails, and transverse limiting wheels which run on the outer wall of the side wall of the open carriage are arranged on the transverse limiting rods.
Has the advantages that:
1. one end of the shear type telescopic ceiling can be extended and contracted in place, and particularly when the front shear type telescopic ceiling and the rear shear type telescopic ceiling are oppositely folded, a closed gap caused by the fact that the front shear type telescopic ceiling and the rear shear type telescopic ceiling are not folded in place can be avoided.
2. Compared with the pushing cylinder adopted in the prior art, the end traction has no high requirement on the strength of the diamond structure of the shear type expansion bracket, and the expansion bracket is not easily damaged due to overlarge stress of the local diamond structure.
Drawings
FIG. 1 is a schematic perspective view of an open wagon with an attached pull-type scissor retractable roof;
FIG. 2 is a schematic top view of a scissor jack;
FIG. 3 is a schematic plan view of a portion of a scissor type expansion bracket in the area of the transfer case, showing a drive relationship of the drive shaft with the first transfer shaft and the second transfer shaft driven by the chain;
FIG. 4 is a partial plan view of the area of the transfer case of the scissor jack showing an alternate drive relationship of the drive shaft with the first transfer shaft and the second transfer shaft driven by the chain;
fig. 5 is a perspective view of a sliding limiting structure at one side of the scissor type telescopic frame.
In the figure: 1. a scissor type telescopic frame; 101. a fixed end; 102. a telescopic end; 2. a guide rail; 201. a running track surface; 203. limiting the track surface; 3. a drive wheel; 4. a pneumatic motor; 5. a drive shaft; 6. a dividing frame; 7. a first transfer shaft; 8. a second split shaft; 9. a sprocket; 10. a chain; 11. a sliding wheel; 12. a vertical limiting rod; 13. a vertical limiting wheel; 14. a transverse limiting rod; 15. a transverse limiting wheel; 16. a side wall.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 and 2, a traction type scissor type telescopic ceiling covering an open wagon comprises a scissor type telescopic frame 1, a tarpaulin covered on the scissor type telescopic frame 1 and capable of stretching along with the scissor type telescopic frame 1, and guide rails 2 arranged at the tops of side walls 16 on two sides of the open wagon; one end of the scissor type telescopic frame 1 is a fixed end 101, the other end of the scissor type telescopic frame is a telescopic end 102, the fixed end 101 is fixed at one end of the carriage, two sides of the scissor type telescopic frame 1 slide on the guide rails 2 at two sides of the open carriage, a driving mechanism is arranged at the telescopic end 102 of the scissor type telescopic frame 1, driving wheels 3 driven by the driving mechanism and running on the guide rails 2 at the left side and the right side are respectively arranged at two sides of the telescopic end 102, and the driving wheels 3 on the guide rails 2 at the two sides synchronously rotate to push the scissor type telescopic frame 1 to extend or retract.
Generally, a front scissor type telescopic ceiling and a rear scissor type telescopic ceiling are arranged on a section of an open wagon, a fixed end 101 of a scissor type telescopic frame 1 of the front scissor type telescopic ceiling is fixed at the front end of the open wagon, and a fixed end 101 of a scissor type telescopic frame 1 of the rear scissor type telescopic ceiling is fixed at the rear end of the open wagon. When the open carriage is to be closed, the telescopic ends 102 of the two scissor type telescopic ceilings are drawn to approach each other under the traction force formed by the rotation of the driving wheels 3 driven by the respective driving mechanisms, and the closing of the top of the open carriage is completed. When the open wagon is to be opened, the telescopic ends 102 of the front and rear scissor type telescopic ceilings are pulled away from each other by the traction force generated by the rotation of the driving wheels 3 driven by the respective driving mechanisms, so that the top of the open wagon is opened.
Therefore, the end traction is adopted, so that one end of the shear type telescopic ceiling can be controlled to extend and contract in place, and particularly when the front shear type telescopic ceiling and the rear shear type telescopic ceiling are oppositely folded, a closed gap caused by the fact that the front shear type telescopic ceiling and the rear shear type telescopic ceiling are not folded in place can be avoided. Meanwhile, compared with the pushing cylinder adopted in the prior art, the end traction does not have a high requirement on the strength of the rhombic structure of the scissor type telescopic frame 1, and the telescopic frame is not easy to be damaged due to overlarge stress of the local rhombic structure.
The following is a further improvement.
As shown in fig. 2 and 3, the driving mechanism includes a power unit and a transmission unit, and the power unit drives the driving wheel 3 through the transmission unit.
The power device can be a pneumatic motor 4 or an electric motor.
The pneumatic motor 4 or the electric motor is arranged in the middle of the telescopic end 102 of the scissor type telescopic frame 1, and the transmission device comprises a transmission shaft 5 which transmits power from the power device to the left driving wheel 3 and the right driving wheel 3 respectively.
The transmission device also comprises a transfer case 6 respectively arranged at the outer end parts of the transmission shafts 5 at the two sides, the transfer case 6 is provided with two transfer shafts arranged in front and back, and the transfer shafts are linked with the transmission shafts 5; two driving wheels 3 are respectively arranged on the guide rails 2 at two sides, and the two driving wheels 3 at one side are respectively arranged on two split shafts of the split frame 6.
The two transfer shafts are respectively a first transfer shaft 7 and a second transfer shaft 8; the transmission shaft 5 is provided with a chain wheel 9, the first split shaft 7 is provided with two chain wheels 9, the second split shaft 8 is provided with a chain wheel, one chain wheel 9 of the first split shaft 7 is in transmission with the chain wheel 9 of the transmission shaft 5 through a chain 10, and the other chain wheel 9 of the first split shaft 7 is in transmission with the chain wheel 9 of the second split shaft 8 through the chain 10. And a chain wheel and chain transmission mode is adopted, so that all the driving wheels 3 on two sides can synchronously rotate at a constant speed, and the two sides of the shear type telescopic ceiling can advance and retreat in parallel.
As shown in fig. 4, another chain-sprocket transmission mode is: the transmission shaft 5 is provided with two chain wheels 9, the first split shaft 7 and the second split shaft 8 are respectively provided with one chain wheel, and the two chain wheels 9 of the transmission shaft 5 are respectively in transmission with the chain wheel of the first split shaft 7 and the chain wheel of the second split shaft 8 through a chain 10.
As shown in fig. 1, 3, 4 and 5, the guide rail 2 has a running rail surface 201 whose top portion faces upward and a stopper rail surface 203 whose outer side faces downward, and the drive wheels 3 run on the running rail surface 201.
In order to make the scissor type telescopic ceiling more smooth when telescopic, sliding wheels 11 running on a running track surface 201 of the guide track 2 are arranged below the frame body from the movable frame 6 to the fixed end 101 on both sides of the scissor type telescopic frame 1.
Vertical limiting rods 12 which are folded inwards from the outer side of the guide rail 2 are further arranged on two sides of the scissor type telescopic frame 1, and vertical limiting wheels 13 which run on the limiting rail surface 203 are arranged on the vertical limiting rods 12. Thus, the side edge of the scissor type telescopic ceiling is limited to a vertical height by the upper driving wheel 3 and the sliding wheel 11 and the lower vertical limiting wheel 13.
And the two sides of the scissor type telescopic frame 1 are also provided with transverse limiting rods 14 which are folded inwards from the outer sides of the guide rails 2, and the transverse limiting rods 14 are provided with transverse limiting wheels 15 which run on the outer wall of the side wall 16 of the open carriage. Therefore, the shear type telescopic ceiling can be transversely limited, and deviation and derailment during telescopic operation are avoided.
The above description is given for clearness of description of the invention only and should not be taken as limiting the scope of protection covered by the invention, any modification of the equivalent should be considered as falling within the scope of protection covered by the invention.
Claims (10)
1. A traction type scissor type telescopic ceiling covering an open carriage comprises a scissor type telescopic frame (1), a tarpaulin covered on the scissor type telescopic frame (1) and capable of stretching along with the scissor type telescopic frame (1), and guide rails (2) arranged at the tops of side walls (16) on two sides of the open carriage; the one end of cutting formula expansion bracket (1) is stiff end (101), and the other end is flexible end (102), and stiff end (101) are fixed in the one end in carriage, and the both sides of cutting formula expansion bracket (1) slide on guide rail (2) of uncovered carriage both sides, its characterized in that: a driving mechanism is arranged at the telescopic end (102) of the scissor type telescopic frame (1), driving wheels (3) which run on the guide rails (2) on the left side and the right side and are driven by the driving mechanism are respectively arranged on the two sides of the telescopic end (102), and the driving wheels (3) on the guide rails (2) on the two sides synchronously rotate to push the scissor type telescopic frame (1) to extend or retract.
2. The towed scissor retractable roof covering an open wagon of claim 1, wherein: the driving mechanism comprises a power device and a transmission device, and the power device drives the driving wheel (3) through the transmission device.
3. The towed scissor retractable roof covering an open wagon of claim 2, wherein: the power device is a pneumatic motor (4) or an electric motor.
4. The pull-type scissor retractable roof covering an open vehicle cabin of claim 2, wherein: the power device is arranged in the middle of the telescopic end (102) of the scissor type telescopic frame (1), and the transmission device comprises transmission shafts (5) which respectively transmit power from the power device to the left and right driving wheels (3).
5. The towed scissor retractable roof covering an open wagon of claim 4, wherein: the transmission device also comprises a transfer frame (6) respectively arranged at the outer end parts of the transmission shafts (5) at two sides, the transfer frame (6) is provided with two transfer shafts which are arranged in front and at the back, and the transfer shafts are linked with the transmission shafts (5); two driving wheels (3) are respectively arranged on the guide rails (2) at the two sides, and the two driving wheels (3) at one side are respectively arranged on two branch shafts of the branch frame (6).
6. The towed scissor retractable roof covering an open wagon of claim 5, wherein: two split shafts of the split frame (6) are respectively a first split shaft (7) and a second split shaft (8); the transmission shaft (5) is provided with a chain wheel (9), the first split shaft (7) is provided with two chain wheels (9), the second split shaft (8) is provided with a chain wheel, one chain wheel (9) of the first split shaft (7) is in transmission with the chain wheel (9) of the transmission shaft (5) through a chain (10), and the other chain wheel (9) of the first split shaft (7) is in transmission with the chain wheel (9) of the second split shaft (8) through the chain (10).
7. The retractable, scissor-type retractable roof covering an open wagon of any one of claims 1-6, wherein: the guide rail (2) is provided with a walking rail surface (201) with the top upward and a limiting rail surface (203) with the outer side downward, and the driving wheels (3) walk on the walking rail surface (201).
8. The towed scissor retractable roof covering an open wagon of claim 7, wherein: sliding wheels (11) running on a running track surface (201) of the guide rail (2) are arranged below the frame body from the movable frame (6) to the fixed end (101) at the two sides of the scissors type telescopic frame (1).
9. The pull-type scissor retractable roof covering an open vehicle cabin of claim 8, wherein: vertical limiting rods (12) which are folded inwards from the outer sides of the guide rails (2) are further arranged on the two sides of the shear type telescopic frame (1), and vertical limiting wheels (13) which run on the limiting rail surface (203) are arranged on the vertical limiting rods (12).
10. The retractable, scissor-type retractable roof covering an open wagon of any one of claims 1-6, wherein: and the two sides of the scissor type telescopic frame (1) are also provided with transverse limiting rods (14) which are folded inwards from the outer sides of the guide rails (2), and the transverse limiting rods (14) are provided with transverse limiting wheels (15) which run on the outer wall of the side wall (16) of the open carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123369541.6U CN217455981U (en) | 2021-12-30 | 2021-12-30 | Pull-type shear type telescopic ceiling covering open carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123369541.6U CN217455981U (en) | 2021-12-30 | 2021-12-30 | Pull-type shear type telescopic ceiling covering open carriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217455981U true CN217455981U (en) | 2022-09-20 |
Family
ID=83262597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123369541.6U Active CN217455981U (en) | 2021-12-30 | 2021-12-30 | Pull-type shear type telescopic ceiling covering open carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217455981U (en) |
-
2021
- 2021-12-30 CN CN202123369541.6U patent/CN217455981U/en active Active
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