CN210174867U - Cover-pulling mechanism and cover-pulling device - Google Patents

Abstract

The utility model provides a dial lid mechanism and dial lid device dials lid mechanism and includes connecting rod, first otic placode, round pin axle and gyro wheel. The cover-shifting device is arranged on the ground and is matched with a movable top cover arranged at the top of the open wagon for use. The part of the cover shifting mechanism contacting with the movable top cover is additionally provided with the roller, so that sliding friction generated when the cover shifting mechanism contacts with the movable top cover can be converted into rolling friction, the abrasion of the cover shifting mechanism and the movable top cover is reduced, and the service life is prolonged.

Description

Cover-pulling mechanism and cover-pulling device

Technical Field

The utility model relates to a railway vehicle technical field especially relates to a dial lid mechanism and dial lid device.

Background

The bulk goods such as coal and the like are mainly transported by vehicles with open type carriages, the open type carriages refer to boxcars without roofs and open upwards, the number of the boxcars is the largest, about 30 more than ten thousand of the open type carriages are shared by all railways at present, and the number of the open type carriages accounts for more than 50% of the total number of the boxcars. But raise dust can be produced in the course of transporting the bulk cargo, which affects the environment and causes cargo loss to users. The common method is to cover by using tarpaulin, however, the tarpaulin covering is completed by manpower, the labor intensity of workers is high, and the working efficiency is low. For this reason, in the prior art, some movable top covers capable of closing the top of the open wagon are designed, and some parts of the movable top covers are stopped by a cover pulling device arranged on the ground so as to open or close the movable top covers. However, when the open top vehicle runs, impact force is generated when the cover-shifting device is contacted with the movable top cover, and the cover-shifting device is rubbed in the process of disengaging the movable top cover, so that the cover-shifting device and the movable top cover are easily abraded.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a cap-pulling mechanism and a cap-pulling device for solving the problem of easy wear of the existing movable cap and the cap-pulling device.

The above purpose is realized by the following technical scheme:

a lid pulling mechanism comprising: the movable top cover is connected with the movable top cover pushing device, one end of the connecting rod is connected with the movable top cover pushing device, the other end of the connecting rod is fixedly provided with the first lug plate, a first mounting hole is formed in the first lug plate, the pin shaft is arranged in the mounting hole, and the idler wheel is rotatably arranged on the pin shaft.

In one embodiment, a second ear plate is arranged at one end of the connecting rod connected with the movable top cover shifting device, a second mounting hole is formed in the second ear plate, and the connecting rod is rotatably connected with the movable top cover shifting device by arranging a rotating shaft in the second mounting hole.

In one embodiment, a buffer pad is arranged on the side surface of the cover pulling mechanism, the buffer pad is matched with a positioning block in the movable top cover pulling device, and the buffer pad and the positioning block can limit the rotation of the cover pulling mechanism relative to the movable top cover pulling device.

In one embodiment, a third ear plate is arranged on the side surface of the cover pulling mechanism, and a third mounting hole is arranged on the third ear plate.

In one embodiment, the first ear plates are arranged on two sides of the connecting rod in pairs, and the roller is arranged between the two first ear plates.

In one embodiment, a rib plate is arranged between the two first ear plates.

In one embodiment, the connecting rod comprises a square tube and sealing plates, and the sealing plates are arranged at two ends of the square tube.

In one embodiment, the connecting rod and the first ear plate are welded together.

In one embodiment, the roller is made of polyurethane or nylon.

A movable top cover shifting device for a railway vehicle comprises the cover shifting mechanism in any one of the embodiments.

The utility model has the advantages that:

the utility model provides a dial lid mechanism and be equipped with this group lid device of lid mechanism dials the lid device, dial the lid device and set up in ground, use with the movable top cap cooperation that sets up at the gondola car top. The part of the cover shifting mechanism contacting with the movable top cover is additionally provided with the roller, so that sliding friction generated when the cover shifting mechanism contacts with the movable top cover can be converted into rolling friction, the abrasion of the cover shifting mechanism and the movable top cover is reduced, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural view of the cover-pulling device and the movable top cover used in cooperation;

fig. 2 is a schematic structural view of the cover-pulling mechanism provided by the present invention;

fig. 3 is a schematic structural view of another view angle of the cover-pulling mechanism provided by the present invention;

fig. 4 is a perspective view of the cover-pulling device provided by the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4;

fig. 6 is a schematic structural view of a rotating mechanism in the lid-pushing device according to the present invention.

Wherein:

a top cover unit 100; a cover-pulling device 300; a column 310; a rotating mechanism 320; a rotating arm 321; a rotation support 322; a rotating electric machine 323; a drive gear 324; a driven gear 325; a lid-pulling mechanism 330; a connecting bar 331; square tubes 3311; a closure plate 3312; a pin 332; a roller 333; a first ear panel 334; a second ear panel 335; a third ear panel 336; a cushion 337; a lifting mechanism 340; the lifter frame 341; a lifting rail 342; a lift motor 343; a weight mechanism 350; a first fixed sheave 351; a second fixed sheave 352; a third fixed pulley 353; a ladder 380; a guardrail 390; the cargo box 900.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail by the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, the present invention provides a cover-pulling device 300, wherein the cover-pulling device 300 is suitable for a railway open wagon provided with a longitudinally split movable top cover for opening or closing the movable top cover on a cargo compartment 900 of the railway open wagon. The utility model provides a dial lid device 300 includes stand 310, rotary mechanism 320 and dials lid mechanism 330: the upright columns 310 are fixedly arranged on the ground at two sides of the track and serve as installation bases of the whole cover shifting device 300; the rotating mechanism 320 is rotatably arranged at the top of the upright post 310, the rotating mechanism 320 comprises a rotating arm 321, a rotating support 322 and a rotating motor 323, the rotating arm 321 is rotatably connected to the upright post 310 through the rotating support 322, the upright post 310 is vertically arranged, the rotating arm 321 is horizontally arranged, the rotating arm 321 can rotate in a horizontal plane, and the driving motor is used as a power source of the rotating arm 321 and can directly or indirectly drive the rotating arm 321 to rotate through the rotating support 322; the cover-moving mechanism 330 is disposed at one end of the rotating arm 321 far from the upright 310, and the cover-moving mechanism 330 can stop the movable top cover when the open wagon with the movable top cover passes through the tracks with the cover-moving devices 300 on two sides, but does not affect the normal running of the open wagon, so that the movable top cover and the open wagon are displaced relatively to complete the opening or closing of the movable top cover. When the rotating arm 321 rotates to make the tracks parallel, it is called an initial state, and when the rotating arm 321 rotates to above the tracks, it is called an operating state; when the movable top cover does not need to be opened or closed, for example, a vehicle passing through the track is a common truck or other vehicles without the movable top cover, the rotating arm 321 is in an initial state, and as a certain distance is arranged between the upright post 310 and the track and the rotating arm 321 is parallel to the track, the whole cover-pulling device 300 is completely positioned outside the track, and the normal running of the open wagon is not influenced; when the movable top cover needs to be opened and closed, the rotating mechanism 320 drives the rotating arm 321 to rotate 90 degrees to one side of the track, the rotating arm 321 is positioned above the track, and the cover-pulling device 300 can stop the movable top cover so as to finish the opening or closing of the movable top cover.

And, the utility model provides a dial and cover device 300 works as in, dial and cover mechanism 330 and include connecting rod 331, first otic placode 334, round pin axle 332 and gyro wheel 333, connecting rod 331 one end is connected in movable top cap dials the swinging boom 321 that covers device 300 works as in, other end fixed mounting has first otic placode 334 (the otic placode structure is common mechanical structure, it is used for hoist and mount or installation axle class part, comparatively common structure is connected in the principal component through welded mode for a circular steel plate, be equipped with the through-hole on the steel sheet), be equipped with first mounting hole on the first otic placode 334, round pin axle 332 wears to locate in the first mounting hole, gyro wheel 333 rotationally sets up on round pin axle 332. When the movable top cover is shifted by the cover shifting mechanism 330, the cover shifting mechanism 330 is always in contact with the movable top cover, and when the cover shifting mechanism 330 translates or rotates in the whole opening process of the movable top cover, friction is generated between the cover shifting mechanism 330 and the movable top cover. The cover-pulling mechanism 330 without the roller 333 generates dry friction with the movable top cover, and the long-term use can cause the wear and even the failure of the cover-pulling mechanism 330 or the movable top cover. The cover-pulling mechanism 330 utilizes the contact of the roller 333 and the movable top cover, can convert dry friction into rolling friction, reduce abrasion, increase service life, and can continue normal use only by replacing the roller 333 even if the abrasion is too large and the failure occurs after long-term use.

Preferably, referring to fig. 2, one end of the rotating arm 321, which is connected to the movable top cap cover-pulling device 300, of the connecting rod 331 is provided with a second ear plate 335, the second ear plate 335 is provided with a second mounting hole, and a rotating shaft is arranged in the second mounting hole; correspondingly, the rotating arm 321 is provided with an installation ear plate, the rotating shaft penetrates through the second ear plate 335 and the installation ear plate, and the whole cover-pulling mechanism 330 can rotate relative to the rotating arm 321 by using a bearing, a shaft sleeve and other common rotating devices. When the cover-pulling mechanism 330 and the movable top cover are disengaged in a rotating manner, obviously, when the movable top cover is completely opened and continues to advance along with the open wagon, large friction is generated on the cover-pulling mechanism 330, and the roller 333 arranged at the contact position of the cover-pulling mechanism 330 and the movable top cover can well convert the friction into rolling friction, so that the abrasion of the cover-pulling mechanism 330 and the movable top cover is effectively reduced.

Further, referring to fig. 2 and 3, for the lid pulling device 300 capable of rotating and provided with the weight mechanism 350, a cushion 337 is provided on a side of the lid pulling mechanism 330 facing its movement trend, and correspondingly, a positioning block is provided in the rotating mechanism 320, and the cushion 337 and the positioning block are kept in contact when the lid pulling mechanism 330 is not in contact with the movable lid and is in the initial state. Since the cover-pulling mechanism 330 always has a tendency to move in a specific direction under the action of the weight mechanism 350, it always has a tendency to move in the direction to the right in the figure, as in the illustrated embodiment. The rotating mechanism 320 is provided with a positioning block which can stop the cover-pulling mechanism 330 to make it in the best working state and prevent the cover-pulling mechanism 330 from rotating over position. The cover-pulling mechanism 330 is pushed by the movable top cover, after rotating a certain angle, the movable top cover is disengaged from the cover-pulling mechanism 330, and the cover-pulling mechanism 330 is moved by the action of the counterweight mechanism 350 until the cover-pulling mechanism 330 touches the positioning block and then stops. Set up blotter 337 on dialling lid mechanism 330, the rigidity that striking locating piece produced when can effectively reducing dialling lid mechanism 330 motion is strikeed and is strikeed, reduces wearing and tearing. It should be understood that the cushion 337 may be made of a common flexible engineering material such as rubber, nylon, etc.

On the other hand, for the cover pulling device 300 capable of rotating and provided with the counterweight mechanism 350, in order to facilitate the assembly of the counterweight mechanism 350 and the cover pulling device 300, a third ear plate 336 is arranged on one side surface of the cover pulling mechanism 330 facing the movement trend thereof, and a third mounting hole is arranged on the third ear plate 336, and the third mounting hole can be mounted in cooperation with the components in the counterweight mechanism 350. For example, as shown in the illustrated embodiment, the cable of the weight mechanism 350 may be directly inserted into the third mounting hole.

Preferably, referring to fig. 2, the first ear plates 334 are disposed on two sides of the connecting rod 331 in pairs, the pin 332 is disposed between the two first ear plates 334, and the roller 333 is also disposed between the two first ear plates 334. Specifically, the pin 332 is a pin with a hole, and the pin 332 and the roller 333 are rotatably connected through a bearing.

Preferably, a rib plate is arranged between the two first ear plates 334, and the rib plate can improve the strength and rigidity of the two first ear plates 334, so that the two first ear plates 334 are less deformed when the roller 333 is stressed, and further the influence on the rotation of the roller 333 is reduced.

Preferably, referring to fig. 2, the connecting rod 331 includes a square tube 3311 and sealing plates 3312 disposed at both ends of the square tube 3311. The square tube 3311 is a common structural material, and has a low price and a standardized model, and can be flexibly selected according to the requirements of the cap-pulling mechanism 330. Sealing plates 3312 are provided at both ends of the square tube 3311 to seal the through hole in the square tube 3311, thereby reducing the possibility of rain water or foreign materials entering the square tube 3311 to corrode the square tube 3311.

Preferably, the connecting rod 331 is welded to the first ear plate 334, the second ear plate 335, and the third ear plate 336, or may be connected to the first ear plate 334, the second ear plate 335, and the third ear plate 336 by a common fixing connection method such as bolting, riveting, and the like.

Preferably, the roller 333 is made of polyurethane, and the polyurethane wheel has high mechanical strength, good toughness, high tensile strength and compressive strength, strong absorption capacity for impact and stress vibration, and can effectively reduce the impact between the cover-pulling mechanism 330 and the movable top cover.

Preferably, referring to fig. 1, the movable roof of the railway gondola car is a foldable roof which is split longitudinally and comprises two roof units 100, wherein a movable end of each roof unit 100 is provided with a touch head which extends upwards and is higher than other parts of the movable roof. When a railway gondola car with a movable top cover enters a bulk cargo station, the movable top cover is in a closed state, when the railway gondola car passes through the movable top cover shifting device 300, the rotating arm 321 is in a working state, so that the shifting mechanism 330 is positioned above a railway track, the projection parts of the shifting device 300 and a touch head in the running direction of the gondola car are overlapped, the shifting device 300 can stop the touch head, so that the top cover unit 100 is static relative to the ground, and meanwhile, the gondola car body still continues to advance, namely, the movable top cover and the gondola car body are displaced, and the opening of the movable top cover of the railway gondola car is completed by the mode; when the movable top cover is opened to the limit position and cannot move any more, in order to avoid damage to the cover-moving device 300 or the movable top cover caused by the fact that the cover-moving device 300 continues to stop with the contact head, after the movable top cover is completely opened, the rotating mechanism 320 drives the rotating arm 321 to rotate towards one side of the advancing direction of the open wagon, the cover-moving device 300 is driven to be separated from the contact head, and the open wagon and the movable top cover continue to advance. The closing process of the movable top cover is the same.

Preferably, referring to fig. 4, the movable top cap removing device 300 further includes a lifting mechanism 340, and the lifting mechanism 340 is disposed between the rotating mechanism 320 and the cap removing mechanism 330 and can drive the cap removing mechanism 330 to move up and down. Because the railway gondola car is of various types and the types of the movable top covers are different, the touch heads used for touching and forming the backstop on the movable top covers have various heights, in order to adapt to the movable top covers with different heights, the cover-shifting device 300 is also provided with a lifting mechanism 340, and the lifting mechanism 340 can drive the cover-shifting mechanism 330 to move up and down, so that the parts of the cover-shifting device 300 used for stopping the movable top covers are positioned at different heights. Meanwhile, the lifting mechanism 340 can also be lifted at the same time when the movable top cover is completely opened or closed, so that the cover-pulling mechanism 330 is separated from the movable top cover, and the cover-pulling device 300 or the movable top cover is prevented from being damaged.

Specifically, referring to fig. 5, the lifting mechanism 340 includes a lifting frame 341, a lifting rail 342, a lifting motor 343 and a screw rod, the lifting rail 342 is fixedly and vertically disposed at one end of the rotating arm 321 away from the upright post 310, the lifting frame 341 is slidably disposed in the lifting rail 342, the screw rod includes a screw rod shaft and a screw rod nut, the screw rod shaft is connected to the lifting motor 343, the screw rod nut is fixedly connected to the lifting frame 341, the lifting motor 343 drives the screw rod shaft to rotate, and the screw rod nut converts the rotation of the screw rod shaft into a linear motion and drives the lifting frame 341 fixedly connected thereto to slide up and down along the lifting rail 342.

Preferably, the rotary support 322 comprises a bearing, a connecting rack and a gear transmission unit, an inner ring of the bearing is fixedly connected to the upright column 310, an outer ring is sleeved with a driven gear 325, one end of the connecting rack is fixedly connected to one side surface of the driven gear 325 facing upwards, the other end of the connecting rack is fixedly connected to the rotating arm 321, a driving gear 324 is arranged on an output shaft of the rotating motor 323, the driving gear 324 is meshed with the driven gear 325 and forms the gear transmission unit, the rotating motor 323 rotates, the driving gear 324 drives the driven gear 325 to rotate, the driven gear 325 drives the connecting rack to rotate, and the connecting rack.

Preferably, the gear transmission mechanism further comprises one or more transmission gears, the transmission gears are arranged between the driving gear 324 and the driven gear 325, and the driving gear 324, the transmission gears and the driven gear 325 are meshed with each other. The gear transmission unit formed by the multi-stage transmission gear can drive the rotating mechanism 320 to rotate by smaller driving force, the rated output power of the corresponding rotating motor 323 is reduced, and the size and the weight of the rotating motor 323 are reduced, so that the size and the weight of the whole cover pulling device 300 are reduced.

Preferably, the movable top cap pulling device 300 further includes a counterweight mechanism 350, the counterweight mechanism 350 includes a counterweight unit and a transmission unit, the transmission unit is connected to the counterweight unit, meanwhile, the pulling device 300 includes a pulling arm and a positioning block, one end of the pulling arm is rotatably disposed on the rotating mechanism 320, the other end of the pulling arm is connected to the transmission unit, the positioning block is fixedly disposed on the rotating mechanism 320, and the counterweight unit can apply an acting force to the pulling arm through the transmission unit, so that the pulling arm abuts against the positioning block and is in a vertically downward state.

Preferably, the transmission unit comprises a fixed pulley block and a steel wire rope, one end of the steel wire rope is fixedly connected to the counterweight unit, the other end of the steel wire rope is fixedly connected to the cover pulling arm, the steel wire rope is wound on the fixed pulley block, and the vertical force generated by the counterweight unit is converted into the horizontal force acting on the cover pulling arm through the fixed pulley block.

Preferably, the fixed pulley group comprises a first fixed pulley 351, a second fixed pulley 352 and a third fixed pulley 353, the first fixed pulley 351 is arranged at the upper end of the upright post 310, the second fixed pulley 352 is arranged at the top of the end of the rotating mechanism 320 far away from the upright post 310, the third fixed pulley 353 is arranged at the bottom of the end of the rotating mechanism 320 far away from the upright post 310, and the lower end of the third fixed pulley 353 and the lower end of the cover pulling arm are substantially in the same horizontal plane.

Preferably, the counter weight unit is the balancing weight, and the balancing weight passes through the transmission unit and applys certain effort to dialling the lid arm, and this effort remains unchanged throughout the process of dialling the lid arm rotation for dial the lid arm and keep away from the one end of rotating the junction and always have the trend that is close to the locating piece. When the cover shifting arm is not in contact with the movable top cover, the cover shifting arm always abuts against the positioning block and keeps a vertical state. When the movable top cover is opened and the cover pulling arm is contacted with the movable top cover, the cover pulling arm still does not rotate and keeps a state of abutting against the positioning block because the force for driving the movable top cover to move is smaller than the acting force of the counter weight block on the cover pulling arm; when the activity top cap was opened completely, because the unable continuation motion of activity top cap, it is whole that can be regarded as activity top cap and gondola car, then the power of activity top cap to dialling the lid arm is equivalent to whole gondola car motion and the effort to dialling the lid arm that produces, this effort is far greater than the balancing weight and is exerted in the power of dialling the lid arm, dial the lid arm at this moment and rotate under ordering about of activity top cap, dial the motion that the lid arm no longer hinders activity top cap, the activity top cap moves the back and dials the lid arm and get back to the vertical position under the effect of balancing weight, prepare to open next activity top cap. The closing process of the movable top cover is the same as the opening process.

Preferably, the balancing weight is formed by stacking a plurality of balancing weight plates. The balance weight plate positioned at the lowest part is fixedly connected with one end of the transmission unit, and the rest balance weight plates in the balance weight blocks are superposed with the balance weight plate at the lowest part. The weight of the whole balancing weight is adjusted by superposing different numbers of balancing weights so as to adapt to various different types of movable top covers.

Preferably, the counterweight unit is a spring, and the spring applies a certain acting force to the cover pulling arm through the transmission mechanism, so that one end of the cover pulling arm, which is far away from the rotary connection part, always tends to be close to the positioning block; and along with the movement of the cover pulling arm, the displacement of the spring changes, and the acting force also changes correspondingly. When the cover-pulling arm is not in contact with the movable top cover, the spring is already in a stretching state, and a small force is applied to the cover-pulling arm, so that the cover-pulling arm always abuts against the positioning block, and the cover-pulling arm is kept in a vertical state. In the process of opening the movable top cover, when the initial acting force applied to the cover pulling arm by the spring is greater than the force for driving the movable top cover to move, the cover pulling arm abuts against the positioning block and drives the movable top cover to open; when the initial acting force applied to the cover shifting arm by the spring is smaller than the force for driving the movable top cover to move, the cover shifting arm firstly rotates for a certain angle, the cover shifting arm rotates the extension spring, so that the acting force of the spring on the cover shifting arm is increased until the acting force of the spring on the cover shifting arm is larger than the force for driving the movable top cover to move, the cover shifting arm keeps the rotating position or slightly fluctuates nearby the rotating position, and the movable top cover is driven to open; it should be noted that in the process that the cover pulling arm rotates and enables the acting force of the spring on the cover pulling arm to be larger than the force for driving the movable top cover to move, the cover pulling arm is always in contact with the movable top cover and can play a role in stopping. After the movable top cap is completely opened, because the movable top cap can not continue to move, the movable top cap and the open wagon are integrated, the force of the movable top cap on the cover pulling arm is equivalent to the force of the whole open wagon on the cover pulling arm, the acting force is far greater than the force of the spring on the cover pulling arm, the cover pulling arm rotates under the driving of the movable top cap at the moment, the cover pulling arm does not obstruct the movement of the movable top cap any more, the cover pulling arm returns to the vertical position under the action of the spring after the movable top cap moves, and the next movable top cap is ready to be opened. The closing process of the movable top cover is the same as the opening process.

Preferably, please refer to fig. 4, a ladder 380 and a guardrail 390 are arranged on the upright, the ladder 380 can facilitate an operator to climb the top of the upright, the cover-pulling device is maintained, and the guardrail 390 can prevent the operator from accidentally falling off when climbing the ladder 380, so as to reduce the risk of injury of the operator.

The following is to using the utility model provides a dial top cap system of covering device and do the detailed description:

used the utility model provides a dial lid device's spacious railway with activity top cap system, include mounting bracket, top cap unit, slip track and dial the lid device:

the mounting bracket includes mounting panel and landing leg, and landing leg one end fixed mounting is in side wall and headwall, and curb plate fixed mounting is in the other end of landing leg. The size of the side plate can be correspondingly adjusted according to different types of railway open wagons, and the side plate is fixedly connected to the cargo compartment through a plurality of supporting legs and serves as a mounting base of the roof unit in the movable roof system.

The top cover unit can be unfolded or folded and has a corresponding unfolded state and a corresponding folded state, and when the top cover unit is in the unfolded state, the top of the cargo compartment of the open wagon can be closed; when the top cover unit is in a folding state, the top cover unit can be contracted at the end part of the cargo compartment along the length direction, so that the top of the cargo compartment is opened. One end of the top cover unit is provided with an end cross beam, and a stop mechanism is arranged on the end cross beam.

The sliding rail is arranged on the mounting frame and comprises a first rail, and the first rail is arranged at the top of the mounting frame along the horizontal direction; the open wagon cargo compartment comprises side walls and end walls, the sliding rails are arranged on the sides of the cargo compartment along the two sides of the length direction in pairs, and the top cover unit can slide in the sliding rails, so that the whole top cover unit can be unfolded and folded.

The cover shifting device is arranged on the ground, and when the railway open wagon runs, the cover shifting device can block the movement of the stop mechanism, so that the stop mechanism drives the top cover unit and the cargo compartment to move relatively, and the top cover unit is unfolded and folded.

The movable top cover system formed by the top cover unit, the sliding rail and the cover shifting device can utilize the kinetic energy of the railway open wagon to complete the opening and closing of the top cover when the railway open wagon needs to load and unload goods, has a simple structure, is convenient to operate, and can effectively reduce the loss generated by opening the top and the pollution to the environment when the open wagon transports the goods.

Preferably, the top cover unit includes a plurality of shutters and a plurality of connecting shafts. A plurality of shutters is used to cover the open top of the cargo bed. The connecting shafts are parallel to each other and can be arranged at the top opening of the cargo compartment in a sliding mode, and the connecting shafts have a first state and a second state, wherein every two connecting shafts are spaced at a preset distance, and the connecting shafts are in a second state, wherein every two connecting shafts are oppositely abutted. The both sides of every shielding member are connected with two adjacent connecting shafts respectively, and when a plurality of connecting shafts were in first state, a plurality of shielding members covered the open top in goods railway carriage or compartment. The shutter includes a first cover and a second cover hinged together by a hinge structure and having a relatively unfolded state and a relatively folded state. One side of the first cover plate, which is far away from the second cover plate, is hinged with one connecting shaft, one side of the second cover plate, which is far away from the first cover plate, is hinged with the adjacent connecting shaft, and when the plurality of connecting shafts are in a first state, the first cover plate and the second cover plate are in a relatively unfolded state. When the plurality of connecting shafts are in a second state that the connecting shafts abut against each other pairwise oppositely, the first cover plate and the second cover plate are folded oppositely, so that the top of the cargo compartment is opened. And, the connecting axle both ends are provided with slide mechanism, and slide mechanism sets up in the slip track for the connecting axle can slide along the slip track, and then drives top cap unit and expand or fold. Preferably, the length of the first rail is greater than that of the side walls, and when the top cover unit is in the retracted state, the top cover unit can be fully retracted from the protruding section of the first rail protruding out of the top of the cargo compartment of the open wagon, so that the top of the cargo compartment is fully opened.

Preferably, the sliding rail further includes a second rail and a third rail. The first rail is arranged at the top of the mounting frame along the horizontal direction, the second rail is arranged on the side face of the mounting frame along the vertical direction, and the third rail is connected with the first rail and the second rail; the second track and the third track can be obtained by bending downwards a protruding section of the first track protruding out of the open wagon cargo compartment. When the roof unit is in the folded state, the roof unit can be completely retracted in the second track or the second track and the third track, so that the top of the cargo compartment is completely opened. Since the cover unit has a certain thickness even after being contracted, the sliding rail accommodating the cover unit in the folded state should have a certain length. The second rail in the vertical direction is arranged, so that the situation that the distance between two adjacent cargo compartments is shortened or even interfered due to the fact that the first rail protrudes out of the protruding section of the cargo compartment is too long can be avoided.

The roof unit is contracted to the convex section of the first track protruding out of the open wagon cargo compartment or contracted into the second tracks arranged on the side surfaces of the two ends of the cargo compartment in the extension direction, so that the top of the cargo compartment is completely opened. The unloading of the open railway wagon, especially the open railway wagon for transporting bulk goods such as coal, stone and the like, usually includes turning the open wagon carriage 180 ° through a tippler so as to dump the goods out of the carriage. If can not make goods railway carriage or compartment top open completely after the top cover unit shrink, can influence the speed that the goods emptyd on the one hand, also can strike the top cover unit when on the other hand goods are emptyd, have the risk that causes the damage of top cover unit.

Preferably, the number of the top cover units is two, the top cover units comprise a first top cover and a second top cover, and the two top cover units are oppositely arranged on two sides of the cargo compartment to form a side-by-side door structure. Correspondingly, the second track on the cargo compartment also has two sections which are arranged at two ends of the cargo compartment of the open wagon along the length direction. Meanwhile, a linkage mechanism is arranged between the two top cover units, and the linkage mechanism can enable the two top cover units to have relevance in movement and always open or close at the same time.

In some embodiments, the stop mechanism is provided only on one of the cover units for the split movable covers provided with the linkage mechanism, and the stop mechanism provided on the first cover is described as an example below. When the open wagon runs, the top cover unit is in a closed state, one end provided with the second top cover firstly passes through the cover shifting device, and the front half part of the cargo compartment cannot collide with the cover shifting device due to the fact that the second top cover is not provided with the stop mechanism. When the rear half part of the cargo compartment, namely the part sealed by the first top cover passes through the cover shifting device, the cover shifting device collides with the stop mechanism on the movable end of the first top cover to drive the first top cover to fold and move relative to the cargo compartment; meanwhile, the first top cover drives the second top cover to move through the linkage mechanism, the two top covers have the same moving speed and opposite directions. When the first top cover is completely folded and contracted, the second top cover is also synchronously folded and contracted, so that the top of the cargo compartment is completely opened. At this time, the first top cover is used as a driving part to drive the second top cover as a driven part to move. However, it should be noted that, in the active and passive matching type split movable top cover, when the top cover is to be closed, the open wagon needs to turn around, that is, when the top cover is closed, one end provided with the first top cover first passes through the cover-pulling device, so that the closing action of the top cover can be normally completed.

In other embodiments, for the split movable top cover provided with the linkage mechanism, the two top cover units are provided with the stop mechanisms, and the stop mechanisms on the two top cover units are arranged in a staggered manner. For example, when the open wagon runs from south to north, the first top cover is positioned at one end of the cargo compartment near the north, namely, when the open wagon passes through the cover-shifting device, the first top cover firstly passes through the cover-shifting device, the stop mechanism on the first top cover is arranged at the west side of the open wagon, and the stop mechanism on the second top cover is arranged at the east side of the open wagon. When the open wagon enters the unloading place to unload, the top cover unit is in a closed state, the open wagon firstly passes through the cover opening cover-pulling device arranged at the south of the unloading place, and the cover opening cover-pulling device is arranged at the east side of the railway track. When the open wagon passes through, the cover opening device for opening the cover on the east side cannot collide with the stop mechanism on the west side of the first top cover, only collides with the stop mechanism on the east side of the second top cover, drives the second top cover to be folded, and meanwhile, the second top cover drives the first top cover to be folded through the linkage mechanism to complete the opening of the top cover unit. And after the open wagon finishes unloading, the open wagon continues to move from south to north, and passes through a cover closing cover shifting mechanism at the north part of the unloading place, and the cover closing cover shifting mechanism is arranged at the west side of the railway track. When the open wagon passes through, the cover closing device on the west side cannot collide with the stop mechanism on the east side on the second top cover, and only collides with the stop mechanism on the west side on the first top cover, and drives the first top cover to expand, and meanwhile, the first top cover drives the second top cover to expand through the linkage mechanism, so that the top cover unit is closed.

Preferably, the linkage mechanism comprises driving wheels, annular driving parts and end beams, and the two driving wheels are arranged at two ends of the cargo compartment along the length direction; the annular driving medium sets up on two drive wheels to can rotate round the drive wheel, the annular driving medium position is comparatively by half one and is the upside driving medium, the driving medium that the position was comparatively leaned on is the downside driving medium, the tip crossbeam of two top cap units fixed connection respectively in upside driving medium and downside driving medium. For example, the first top cover is connected to the upper side transmission part, the second top cover is connected to the lower side transmission part, and when the first top cover is folded to open the top cover unit, the cross beam at the end part of the first top cover moves leftwards to drive the upper side transmission part to move leftwards, so that the annular transmission part rotates anticlockwise. Simultaneously, the lower side transmission part moves rightwards and drives the cross beam at the end part of the second top cover to move rightwards, so that the second top cover is folded.

Preferably, the linkage mechanism comprises a sprocket and a chain. The sliding mechanism of the upper end cross beam of the first top cover and the second top cover is respectively fixedly connected with the chain through the long connecting plate and the short connecting plate, meanwhile, chain supporting plates are further arranged on the mounting frame in order to prevent the chain from sagging due to self weight, and the chain penetrates through the grooves in the chain supporting plates. The working principle of the chain wheel and chain for controlling the top cover unit to be synchronously opened is the same as that of the driving wheel and the driving part, and the description is omitted.

It should be understood that the sprocket and chain engagement, the sheave and wire rope engagement, and the like are but some of the possible ways, and other common synchronous drives, such as pulleys and belts, may be used in the present invention.

Preferably, for the split movable top cover provided with the linkage mechanism, the linkage mechanism is further connected with a driving mechanism, and the driving mechanism can actively drive the linkage mechanism, so that the linkage mechanism drives the top cover unit to complete opening or closing. For example, for the above-mentioned top cover unit provided with the driving wheel and the annular transmission member, the driving mechanism is a motor, the motor is directly connected to the driving wheel or connected to the driving wheel through a speed reducing mechanism and can drive the driving wheel to rotate, the annular transmission member is tensioned on the driving wheel, and the driving wheel rotates to drive the annular transmission member to rotate, thereby driving the top cover unit to move. For another example, in the case of a movable roof system provided with a chain and a sprocket as a linkage mechanism, the arrangement of the chain and the sprocket and the connection with the roof unit are similar to the arrangement of the transmission wheel and the transmission member. The motor is arranged and can be connected to the chain wheel, the driving chain wheel drives the chain to rotate, or the motor is connected to the chain and directly drives the chain to rotate. It should be understood that the above two forms are just some possible embodiments of the driving mechanism and the linkage mechanism, and other common driving mechanisms and linkage mechanisms in the mechanical field can also be applied to the movable roof system provided by the present invention.

Preferably, the linkage mechanism is provided with an adjusting mechanism. The adjusting mechanism comprises a bolt, the driving wheels are mounted on the top cover unit through the adjusting mechanism, and the distance between the two driving wheels can be adjusted through the adjusting bolt, so that the tension of the annular driving part is adjusted. It should be understood that the bolt is only one type of means that can be used in the present invention, and other common tension adjusting mechanisms can also be used in the present invention.

Preferably, the sliding rail further includes a limiting member, and for the sliding rail having only the first rail, the limiting member is disposed at the ends of the two ends of the first rail. For the sliding rail comprising the second rail and the third rail, the limiting piece is arranged at the tail end of the second rail close to the lower end in the vertical direction. The sliding mechanism in the top cover unit is arranged in the sliding track in a sliding mode, and in order to prevent the sliding mechanism from falling out of the sliding track when the top cover unit contracts, a limiting piece is arranged at the tail end of the second track. When the top cover unit contracts, the sliding mechanism closest to the limiting piece is in contact with the limiting piece and does not move continuously, so that the sliding mechanism cannot be separated from the sliding track.

Preferably, the number of the top cover units is one. For a cargo box provided with a roof unit, the roof unit should be able to completely cover the entire top of the cargo box in an unfolded state and be retracted to one side of the top of the cargo box in a folded state, so that the top of the cargo box is completely opened. When the top of the open wagon is opened, the open wagon is in a certain direction, the stop mechanism at the movable end of the top cover unit is stopped by the cover shifting device to drive the top cover unit to be folded, the top cover unit is folded, and the process of closing the top of the open wagon is opposite to the opening process. Only one top cover unit is arranged, a linkage mechanism is not needed, the structure of the movable top cover system is simplified, and the reliability of the movable top cover system is improved. It should be noted that when the top of the open wagon is opened or closed, the end of the open wagon where the stop mechanism is located should first pass the cover-lifting device, so that the cover-lifting device can open or close the top cover unit.

Preferably, the number of the cover shifting devices is 2, and the 2 cover shifting devices are oppositely arranged on two sides of the railway track. Correspondingly, the stop mechanism is also provided with 2, which respectively correspond to 2 cover-pulling devices when the top cover unit is opened or closed. Because the top cover unit is limited by weight and structure, the force provided by the stop mechanism is limited, and the opening or closing force is insufficient due to the arrangement of only one group of the stop mechanism and the cover shifting device; meanwhile, the cover shifting devices are arranged on two sides of the railway, and when one cover shifting device is arranged, acting force is only applied to the stop mechanism on one side of the top cover unit, so that the sliding of two sliding rails of the movable top cover system is possibly not matched, and the phenomenon of blocking is caused. Set up two and dial the lid device, on the one hand can increase the effort to the top cap unit, and on the other hand can follow top cap unit both sides application of force simultaneously, avoids the motion of two slip track departments to mismatch.

Preferably, the material of the shielding member in the top cover unit is a rigid material. The rigid shielding member is in a cuboid shape, the length of the rigid shielding member is equal to the width of the top of the cargo compartment, the thickness of the rigid shielding member can be determined according to specific requirements, and the thickness of the rigid shielding member is generally in a range of 1mm-20 mm. The rigid shielding piece can cover the top of the cargo compartment when the top cover unit is opened, so that external sundries are prevented from entering the cargo compartment or the cargoes in the cargo compartment are prevented from scattering. Meanwhile, the rigid shielding piece can play a certain connecting role, so that the movement of the sliding mechanisms at the two ends of the connecting shaft keeps synchronous. Furthermore, in order to avoid a gap between two adjacent rigid shielding pieces, flexible materials such as tarpaulin and the like can be filled in the gap between the two rigid shielding pieces, so that the normal extension and retraction of the top cover unit are not influenced, and the cargo scattering or the entry of sundries caused by the gap between the rigid shielding pieces can be prevented.

Preferably, the movable roof system further comprises a locking mechanism. The locking mechanism is arranged on the top cover unit, when the top cover unit is unfolded, and after the top of the cargo compartment is sealed, the locking mechanism can lock the top cover unit, so that the top cover unit is unfolded and cannot be folded, and the cargo compartment is kept sealed. For example, to open movable top cap, locking device includes lock body and the spring bolt that sets up respectively on two top cap units, and when two top cap units expanded, lock body and spring bolt were close to each other, and when the top cap unit expanded completely, the spring bolt was inserted in the lock body, and when not receiving the effect in exceeding certain size, spring bolt and lock body kept the locking state for two top cap units can't fold. Because the open wagon shakes, or some other unexpected factors exert force on the top cover unit during running, the top cover unit can be opened accidentally during running of the open wagon, and the locking mechanism can be arranged to prevent the top cover unit from being opened accidentally.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A lid pulling mechanism, comprising: the movable top cover is provided with a movable top cover, one end of the connecting rod is connected with the movable top cover and is used for pushing the cover, the other end of the connecting rod is fixedly provided with the first lug plate, a first mounting hole is formed in the first lug plate, the pin shaft is arranged in the mounting hole, the roller is rotatably arranged on the pin shaft, and the roller is used for being in rolling contact with the movable top cover.

2. The mechanism of claim 1, wherein the connecting rod is provided with a second ear plate, the second ear plate is provided with a second mounting hole, and the connecting rod is rotatably connected to the removable top cover device by a rotating shaft arranged in the second mounting hole.

3. The mechanism of claim 2, wherein the mechanism is provided with a cushion pad on the side, the cushion pad is engaged with a positioning block in the cover-pulling device, and the cushion pad and the positioning block can limit the rotation of the mechanism relative to the cover-pulling device.

4. The mechanism of claim 1, wherein a third ear plate is disposed on a side surface of the mechanism, and a third mounting hole is disposed on the third ear plate.

5. The mechanism of claim 1, wherein the first ear plates are disposed in pairs on opposite sides of the connecting rod, and the roller is disposed between the first ear plates.

6. The mechanism of claim 5, wherein a rib is disposed between the first ear plates.

7. The mechanism of claim 1, wherein the connecting rod comprises a square tube and sealing plates, and the sealing plates are disposed at two ends of the square tube.

8. The lid pulling mechanism according to claim 1, wherein the connecting rod and the first ear plate are welded together.

9. The mechanism of any one of claims 1 to 8, wherein the rollers are made of polyurethane or nylon.

10. A device for removing lids, characterised in that the device comprises a mechanism for removing lids as claimed in any one of claims 1 to 9.

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