CN212950577U

CN212950577U - Anti-clamping device for hopper car

Info

Publication number: CN212950577U
Application number: CN202021379937.1U
Authority: CN
Inventors: 魏文超; 李旭英; 赵祖兴; 黄刚强; 袁太红; 张春发; 吴胜财; ***; 谢剑锋
Original assignee: CRRC Taiyuan Co Ltd
Current assignee: CRRC Taiyuan Co Ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-04-13
Anticipated expiration: 2030-07-14

Abstract

The utility model relates to a railway vehicle technical field, concretely relates to material device is prevented pressing from both sides by hopper car, including drive division, first pivot, transmission portion, second pivot, drive assembly, first bottom door and second bottom door, wherein: the driving part drives the first rotating shaft to do axial rotation action; the transmission part is connected with the first rotating shaft and the second rotating shaft so as to transmit the motion of the first rotating shaft to the second rotating shaft; the first bottom door is movably arranged on the second rotating shaft, and the second bottom door is connected with the second rotating shaft; the transmission assembly comprises a ratchet part and a pawl part, the pawl part is connected with the first bottom door, and the ratchet part is fixedly connected with the second rotating shaft and is in meshed transmission with the pawl part. The utility model discloses a close first bottom door and second bottom door to avoid the bottom door to press from both sides tiny fragments of stone, thereby avoid the driving vibration to appear leaking tiny fragments of stone, coal, etc. phenomenon, cause the incident such as vehicle derailment on special devices such as switch with avoiding the tiny fragments of stone, coal, etc. to avoid more tiny fragments of stone, coal, etc. to flow, cause the waste, in addition, can improve work efficiency, energy saving consumes, saves space.

Description

Anti-clamping device for hopper car

Technical Field

The utility model relates to a railway vehicle technical field, more specifically relates to a material device is prevented pressing from both sides by hopper car.

Background

The hopper car is a common car type in railway transport vehicles and is widely applied to transportation of bulk goods such as minerals, grains and chemical raw materials, wherein the stone ballast hopper car is a special railway truck and is mainly used for laying stone ballasts during new construction and maintenance of a railway and discharging the transported stone ballasts by opening a bottom door. When the required quantity of the stone ballasts on some road sections is less, a part of the stone ballasts need to be discharged firstly, then the bottom door needs to be closed, and the bottom door needs to be opened to discharge the stones when the stone ballast hopper car runs to other specified road sections.

When a part of stone ballasts are unloaded by the stone ballast hopper car to close the bottom door, the condition that the bottom door is clamped by the stone ballasts which are not cut off in the car often occurs because the stone ballasts still exist in the car, so that the bottom door cannot be completely closed, the stone ballasts in the car are continuously leaked from the bottom door which is not completely closed along with the running of the car, and if the stone ballasts are leaked on special devices such as turnouts, the car is easy to derail, so that safety accidents are caused.

At present, the mode of repeatedly opening and closing the bottom door for many times is mostly adopted to tightly close the bottom door, however, the mode needs to repeatedly open and close the bottom door for many times, wastes time and energy, has poor reliability, and easily causes more stone ballasts to flow out in the process of repeatedly opening and closing the bottom door, thereby wasting the stone ballasts.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hopper car prevents pressing from both sides material device can effectively solve the double-layered material problem that exists when the bottom door is closed to the hopper car, improves work efficiency to avoid more stone tiny fragments of stone, coal, etc. to flow and cause the waste, and reduce the potential safety hazard.

In order to achieve the above object, the utility model provides a hopper car anti-pinch device, including drive division, first pivot, transmission portion, second pivot, drive assembly, first end door and second end door, wherein:

the driving part drives the first rotating shaft to do axial rotation action;

the transmission part is connected with the first rotating shaft and the second rotating shaft so as to transmit the motion of the first rotating shaft to the second rotating shaft;

the second rotating shaft drives the second bottom door to synchronously move so as to open or close, and the first bottom door is movably arranged on the second rotating shaft;

the transmission assembly comprises a first transmission assembly and a second transmission assembly, the first transmission assembly is connected with the first bottom door, and the second transmission assembly is in transmission connection with the first transmission assembly to drive the first bottom door to be opened or closed.

Further, the first transmission component is a pawl part, the second transmission component is a ratchet part, the pawl part is connected with the first bottom door, the ratchet part is fixedly connected with the second rotating shaft and is in meshing transmission with the pawl part, and the first transmission component and the second transmission component are respectively connected with the first bottom door and the second bottom door, wherein:

pawl portion includes the pawl, the elastic component, guide rail seat and base, and the guide rail seat links to each other with first end door, and the guide rail has been seted up to guide rail seat inside, and the one end of pawl stretches into in the guide rail seat, and the other end stretches out and meshes with ratchet portion from the guide rail seat, and the pawl slides along the guide rail and sets up, and the base links to each other with the guide rail seat is fixed, and the elastic component sets up in the guide rail, and its one end cup joints on stretching into of pawl is served, the other end and base butt, and the elastic component takes place elastic deformation along.

Further, the pawl part also comprises an adjusting bolt, the adjusting bolt is fixedly connected with the base, one end of the adjusting bolt penetrates through the base and extends into the guide rail seat, and the end part of the elastic piece is sleeved on the extending end of the adjusting bolt and is abutted against the base.

Further, the elastic member is a spring.

Furthermore, the ratchet part comprises a ratchet wheel and a ratchet wheel seat, the ratchet wheel seat is sleeved on the second rotating shaft and fixedly connected with the second rotating shaft, the ratchet wheel is sleeved on the ratchet wheel seat and fixedly connected with the ratchet wheel seat, and the ratchet wheel is meshed with the pawl.

Furthermore, the ratchet wheel is of a bidirectional gear structure, a first surface of the ratchet wheel teeth and the radius of the ratchet wheel form a first included angle, a second surface of the ratchet wheel teeth and the radius of the ratchet wheel form a second included angle, the first included angle is larger than the second included angle, and the pawl is in a shape matched with the ratchet wheel teeth.

Further, still include first connecting portion, first connecting portion include first crank throw and first connecting rod, and first crank throw, first connecting rod and first end door rotate in proper order and link to each other, and first crank throw activity sets up in the second pivot, and pawl portion is fixed in on the first crank throw.

Further, the door frame further comprises a second connecting part, the second connecting part comprises a second crank throw and a second connecting rod, the second crank throw, the second connecting rod and the second bottom door are sequentially connected in a rotating mode, and the second crank throw is fixedly connected with the second rotating shaft.

Furthermore, the transmission portion includes the third crank throw, pull rod and the fourth crank throw that rotate the looks continuous in proper order, and the third crank throw overlaps to be located on the first pivot and fixed continuous with first pivot, and the fourth crank throw overlaps to be located on the second pivot and fixed continuous with the second pivot.

Further, the driving part is an air cylinder; or the driving part is a cylinder; alternatively, the driving portion is an electric cylinder.

The beneficial effects of the utility model reside in that:

by arranging the two bottom doors, stone ballasts in the vehicle body can be blocked doubly, so that the problem of material leakage caused by the fact that the bottom doors cannot be closed tightly after unloading is avoided, the working efficiency is improved, potential safety hazards such as vehicle derailment and the like caused by material leakage are avoided, the safety performance of a vehicle is improved, and more stone ballasts can be prevented from flowing out to cause waste; in addition, drive two bottom doors through the drive division and open or close, rethread first transmission assembly and second transmission assembly's transmission setting, avoid the action of opening and shutting of first bottom door to cause the interference to opening and shutting of second bottom door to make first bottom door and second bottom door independently open and shut.

Furthermore, the driving part drives the first rotating shaft to rotate, the transmission part drives the second rotating shaft to rotate, so that the ratchet part is driven to rotate, the pawl part is meshed with the ratchet part to drive the first bottom door to be opened or closed, the second bottom door rotates along with the second rotating shaft to be opened or closed, the first bottom door and the second bottom door are closed, the situation that the bottom doors clamp ballasts is avoided, the phenomenon that the ballasts leak in driving vibration is avoided, further, safety accidents such as vehicle derailment and the like caused by ballast leakage on special devices such as turnouts are avoided, more ballasts are prevented from flowing out to cause waste, in addition, the first bottom door and the second bottom door are controlled to be opened or closed simultaneously, the working efficiency can be improved, the energy consumption is saved, the structure is compact, and the space is saved.

Furthermore, through the setting to pawl and spring, when making the second pivot drive the second bottom door and open or close, the ratchet rotated along with the second pivot, thereby promote the pawl, make the pawl overcome spring force, fall into next and close on the gear from the gear of ratchet, thereby drive first bottom door and rotate in order to open or close, in addition, through the setting to the ratchet teeth of a cogwheel, when the bottom door presss from both sides the tiny fragments of stone, use first bottom door to press from both sides tiny fragments of stone, first bottom door opens before the second bottom door and targets in place or closed the back of targetting in place, according to the difference of the required power of the state of opening the door or closing the door, realize that the pawl jumps the tooth, thereby make the second bottom door can continue to open or close.

Furthermore, the first crank throw, the first connecting rod and the first bottom door are arranged, so that the first bottom door is protected in a buffering mode when being opened or closed, the first bottom door is prevented from directly impacting a vehicle body and being damaged, and the first bottom door can be buffered after the first bottom door clamps the ballast and is kept in a static state when the second bottom door is opened or closed; in a similar way, the second bottom door is convenient to buffer and protect through the arrangement of the second crank throw, the second connecting rod and the second bottom door, and the second bottom door is prevented from being damaged.

Furthermore, through the arrangement of the third crank throw, the connecting rod and the fourth crank throw, the movement of the first rotating shaft is conveniently transmitted to the second rotating shaft, and then the first bottom door and the second bottom door are driven to be opened or closed.

Furthermore, the driving part is selected, so that the structure is simple, the maintenance and the installation are easy, the control precision is high, and the working environment adaptability is strong.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

The apparatus of the present invention has other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention with reference to the attached drawings, in which like reference numerals generally represent like parts.

Fig. 1 is a schematic structural diagram illustrating a material clamping preventing device for a hopper car according to an embodiment of the present invention;

fig. 2 shows a schematic view of the transmission assembly shown in fig. 1.

Description of reference numerals:

1. a drive section; 2. a first rotating shaft; 3. a transmission section; 31. a third crank throw; 32. a pull rod; 33. a fourth crank throw; 4. a second rotating shaft; 5. a transmission assembly; 51. a pawl portion; 511. a pawl; 512. an elastic member; 513. a guide rail seat; 514. a base; 515. adjusting the bolt; 516. a guide rail mounting seat; 52. a ratchet portion; 521. a ratchet wheel; 522. a ratchet seat; 6. a first bottom door; 7. a second bottom door; 8. a first connection portion; 81. a first crank throw; 82. a first link; 9. a second connecting portion; 91. a second crank throw; 92. a second link.

Detailed Description

The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the 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.

The wedge insert mechanism, the punching device and the punching method according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and drawings, it being understood, however, that the inventive concepts may be embodied in many different forms and are not limited to the specific embodiments set forth herein. The drawings are in simplified form and are not to scale, but rather are provided for convenience and clarity in describing the embodiments of the invention.

When the bottom door is closed after ballast is unloaded, the ballast needs to be prevented from being clamped by the bottom door, so that the situations of ballast leakage and safety accidents are avoided. The mode of the bottom door of relapse many times that adopts at present exists and relapses many times, wastes time and energy, reliability subalternation shortcoming, and easily makes more stone tiny fragments of stone, coal, etc. flow at the bottom door in-process of relapse opening and shutting, extravagant stone tiny fragments of stone.

The utility model relates to a solve the double-layered tiny fragments of stone, coal, etc. problem that stone tiny fragments of stone, coal, etc. in-process appears at hopper car transport, provide a hopper car and prevent pressing from both sides material device, press from both sides tiny fragments of stone, coal, etc. when can effectively avoiding the hopper car to close the bottom door, improve work efficiency, avoid leaking tiny fragments of stone, coal, etc. and then avoid causing the incident. The structure of the hopper car anti-material-clamping device is illustrated in the following by combining with figures 1-2.

The hopper wagon material clamping prevention device comprises a driving part 1, a first rotating shaft 2, a transmission part 3, a second rotating shaft 4, a transmission assembly 5, a first bottom door 6 and a second bottom door 7, wherein:

the driving part 1 drives the first rotating shaft 2 to do axial rotation action;

the transmission part 3 is connected with the first rotating shaft 2 and the second rotating shaft 4 so as to transmit the movement of the first rotating shaft 2 to the second rotating shaft 4;

the second rotating shaft 4 drives the second bottom door 7 to synchronously move so as to open or close, and the first bottom door 6 is movably arranged on the second rotating shaft 4;

the transmission assembly 5 comprises a first transmission assembly and a second transmission assembly, the first transmission assembly is connected with the first bottom door 6, and the second transmission assembly is in transmission connection with the first transmission assembly to drive the first bottom door 6 to be opened or closed.

Specifically, the first transmission component is a pawl part 51, the second transmission component is a ratchet part 52, the pawl part 51 is connected with the first bottom door 6, and the ratchet part 52 is fixedly connected with the second rotating shaft 4 and is in meshing transmission with the pawl part 51. In the actual operation process, the driving portion 1 drives the first rotating shaft 2 to perform axial rotation, the transmission portion 3 drives the second rotating shaft 4 to perform synchronous axial rotation along with the first rotating shaft 2, the second bottom door 7 rotates along with the second rotating shaft 4 to be opened or closed, the ratchet portion 52 rotates along with the second rotating shaft 4, the ratchet portion 51 drives the first bottom door 6 to be opened or closed through meshing transmission with the ratchet portion 52, the first bottom door 6 is closed to primarily block leakage of stone ballast, and the second bottom door 7 is closed to further block leakage of stone ballast in the railway car, so that the phenomenon of ballast leakage caused by the fact that the bottom door clamps the stone ballast is effectively avoided, and further potential safety hazards such as derailment of the railway car caused by the fact that the stone ballast is leaked on special devices such as a railway switch and the like are further avoided.

In the present embodiment, the driving part 1 is rotatably connected to the first rotating shaft 2, and the driving part 1 may be an air cylinder. Specifically, still including the pendulum piece, the telescopic link of drive division 1 is equipped with first through-hole respectively for U type structure and U type both sides, and the one end of pendulum piece is equipped with the second through-hole, and the tip of pendulum piece sets up between U type both sides to pass first through-hole and second through-hole through first round pin axle, make the pendulum piece rotate for the reservoir, be equipped with the third through-hole on the other end of pendulum piece so that the cover is located on first pivot 2, the pendulum piece is fixed continuous with first pivot 2. After the driving part 1 starts to work, the telescopic rod of the driving part performs a transverse movement reciprocating action, so that the swinging block is driven to swing, and the first rotating shaft 2 is driven to perform an axial rotation action.

It should be noted that the fixing manner can be a manner known to those skilled in the art, for example, a first key slot is formed on the first rotating shaft 2, a second key slot is formed in the third through hole, and the first key is inserted into the first key slot and the second key slot to fix the first rotating shaft 2 and the swing block. For another example, a first positioning hole is formed in the first rotating shaft 2, a second positioning hole is formed in the swing block, the first positioning hole and the second positioning hole are coaxially arranged, and the first positioning pin is inserted into the second positioning hole and the first positioning hole to fix the first rotating shaft 2 and the swing block.

In other embodiments, the driving part 1 may be a cylinder; alternatively, the driving portion 1 may be an electric cylinder.

After the driving portion 1 drives the first rotating shaft 2 to perform axial rotation, in order to transmit the movement of the first rotating shaft 2 to the second rotating shaft 4, the driving portion 3 is disposed between the first rotating shaft 2 and the second rotating shaft 4, the driving portion 3 includes a third crank throw 31, a pull rod 32 and a fourth crank throw 33, the third crank throw 31 is sleeved on the first rotating shaft 2 and is fixedly connected with the first rotating shaft 2, the fourth crank throw 33 is sleeved on the second rotating shaft 4 and is fixedly connected with the second rotating shaft 4, and the third crank throw 31, the pull rod 32 and the fourth crank throw 33 are sequentially connected in a rotating manner. In the actual operation process, the driving portion 1 drives the first rotating shaft 2 to perform an axial rotation action, so as to drive the third crank throw 31 to rotate by taking the connecting end of the third crank throw and the first rotating shaft 2 as an axis, the pull rod 32 swings along with the third crank throw, so as to drive the fourth crank throw 33 to rotate by taking the connecting end of the fourth crank throw 33 and the second rotating shaft 4 as an axis, and the fourth crank throw 33 and the second rotating shaft 4 are fixed, so that the second rotating shaft 4 performs an axial rotation action under the driving of the fourth crank throw 33, and thus the transmission between the first rotating shaft and the second rotating shaft is realized.

It should be noted that, in the manner that the third crank throw 31 and the pull rod 32 are rotatably connected, a fourth through hole may be respectively disposed at the end of the third crank throw 31 and the end of the pull rod 32, and the third crank throw 31 and the pull rod 32 are fixed by a second pin shaft, so that the third crank throw 31 and the pull rod 32 may rotate relatively; alternatively, the third crank throw 31 and the pull rod 32 are connected in a rotating manner, and may be hinged. The rotational connection between the fourth crank throw 33 and the pull rod 32 can refer to the connection between the third crank throw 31 and the pull rod 32, and will not be described in detail herein. The fixing manner of the third crank throw 31 and the first rotating shaft 2 and the fixing manner of the fourth crank throw 33 and the second rotating shaft 4 can refer to the fixing manner of the swing block and the first rotating shaft 2, and the details are not repeated herein.

The hopper car material clamping prevention device further comprises a first connecting portion 8 and a second connecting portion 9, one end of the first connecting portion 8 is rotatably connected with the first bottom door 6, the other end of the first connecting portion is movably connected with the second rotating shaft 4, one end of the second connecting portion 9 is rotatably connected with the second bottom door 7, and the other end of the second connecting portion is fixedly connected with the second rotating shaft 4. Specifically, the first connecting portion 8 includes a first crank 81 and a first connecting rod 82, the first crank 81, the first connecting rod 82 and the first bottom door 6 are sequentially connected in a rotating manner, the first crank 81 is movably disposed on the second rotating shaft 4, and the pawl portion 51 is fixed on the first crank 81. The second connecting portion 9 includes a second crank throw 91 and a second connecting rod 92, the second crank throw 91, the second connecting rod 92 and the second bottom door 7 are sequentially connected in a rotating manner, and the second crank throw 91 is fixedly connected with the second rotating shaft 4. Through first connecting portion 8 and second connecting portion 9, when first bottom door 6 and second bottom door 7 are opening or are closing, can cushion protection to first bottom door 6 and second bottom door 7 to avoid directly striking and causing the damage on the automobile body, in addition, when first bottom door 6 and second bottom door 7 are opening or are closing, if first bottom door 6 presss from both sides tiny fragments of stone, then first bottom door 6 can open earlier than second bottom door 7 and put in place or close and put in place, in order to avoid first bottom door 6 to continue to rotate this moment, first connecting portion 8 can cushion first bottom door 6, make first bottom door 6 keep static.

It should be noted that the rotational connection manner of the first crank throw 81, the first connecting rod 82 and the first bottom door 6 and the rotational connection manner of the second crank throw 91, the second connecting rod 92 and the second bottom door 7 can refer to the rotational connection manner of the third crank throw 31, the pull rod 32 and the fourth crank throw 33, and the fixing manner of the second crank throw 91 and the second rotating shaft 4 can refer to the fixing manner of the third crank throw 31 and the first rotating shaft 2, which is not described herein again. The first crank throw 81 is sleeved on the second rotating shaft 4 and can rotate relative to the second rotating shaft 4, two sides of the first crank throw 81 are respectively provided with a limiting ring, and the limiting rings are fixedly connected with the second rotating shaft 4.

In other embodiments, the second crank 91 may be fixedly connected to the ratchet portion 52. Specifically, the second crank 91 is sleeved on the second shaft 4 and fixed to the ratchet portion 52 by a first fastener, which may be a bolt, a screw, a second positioning pin, a second key, etc.

In order to facilitate the second rotating shaft 4 to simultaneously drive the first bottom door 6 and the second bottom door 7 to open or close, the pawl portion 51 includes a pawl 511, an elastic member 512, a guide rail seat 513 and a base 514, the guide rail seat 513 is fixedly connected with the first crank 81, the ratchet portion 52 includes a ratchet 521 and a ratchet seat 522, a guide rail is disposed inside the guide rail seat 513, one end of the pawl 511 extends into the guide rail seat 513, the other end of the pawl 511 extends out from the guide rail seat 513 and is engaged with the ratchet 521, the pawl 511 is slidably disposed along the guide rail, the base 514 is fixedly connected with the guide rail seat 513, the elastic member 512 is disposed in the guide rail, one end of the elastic member is sleeved on the extending end of the pawl 511, the other end of the elastic member is abutted against the base 514, the elastic member 512 elastically deforms along the guide rail, the ratchet seat 522 is sleeved on the second rotating shaft 4 and is fixedly connected with the second rotating shaft 4, and the ratchet 521. In this embodiment, the guide rail may be a groove structure, and the shape of the groove is matched with the shape of the pawl, so that the pawl can slide in the groove.

Specifically, the rail mount base 513 is fixed with the rail mount base 516, the rail mount base 516 is fixed to the first crank 81 by a fastening component such as a bolt or a screw, the ratchet base 522 is provided with a third key groove, the second rotating shaft 4 is provided with a fourth key groove, the third key groove and the fourth key groove are inserted into the third key groove and the fourth key groove through a third key to fix the ratchet base 522 and the second rotating shaft 4, and the ratchet 521 and the ratchet base 522 may be an integral structure, or may be fastened to the ratchet base 522 by welding or a bolt, a screw, a limit pin, or the like.

In addition, the pawl part 51 further includes an adjusting bolt 515, the adjusting bolt 515 is fixedly connected to the base 514, one end of the adjusting bolt 515 passes through the base 514 and extends into the guide rail seat 513, and the end of the elastic member 512 is sleeved on the extending end of the adjusting bolt 515 and abuts against the base 514. Specifically, be equipped with the screw hole on the base 514, adjusting bolt 515 passes through the screw hole cooperation with base 514 fixed, is equipped with adjusting nut on adjusting bolt 515, and adjusting nut one side and one side butt of base 514, adjusting nut can set up in the adjusting bolt 515 that is located the inside of guide rail seat 513 and stretch into and hold, also can set up on the adjusting bolt 515 that is located the outside of guide rail seat 513. The length of the adjusting bolt 515 extending through the base 514 is adjusted to adjust the sliding distance of the pawl 511 along the guide rail, so as to ensure that the pawl 511 jumps smoothly relative to the ratchet 521, thereby facilitating the smooth opening and closing of the first bottom door 6. In other embodiments, the base 514 has an optical hole, the adjusting bolt 515 passes through the optical hole and extends into the guide rail seat 513, the adjusting bolt 515 has at least two nuts, at least one nut is located at the extending end of the adjusting bolt 515 in the guide rail seat 513, and at least one nut is located on the adjusting bolt 515 outside the guide rail seat 513.

When the first bottom door 6 and the second bottom door 7 are opened or closed, the second bottom door 7 rotates along with the second rotating shaft 4 to open or close, at the moment, the ratchet wheel 521 rotates along with the second rotating shaft 4 to keep the second bottom door 7 synchronous, the ratchet wheel 521 pushes the pawl 511, so that the pawl 511 overcomes the elastic force of the elastic piece 512, falls into the next adjacent tooth from the current tooth of the ratchet wheel 521, and further drives the first bottom door 6 to open or close, and therefore the first bottom door 6 and the second bottom door 7 are opened or closed synchronously. During the process of tooth jumping, the pawl 511 moves along the guide rail toward the base 514, and cooperates with the base 514 to press the elastic member 512, so that the elastic member 512 elastically deforms in the guide rail, and then moves along the guide rail toward the base 514 in the opposite direction, the elastic member 512 recovers its deformation, and the pawl 511 engages with the next adjacent gear.

In this embodiment, the elastic member 512 may be a spring. In other embodiments, the elastic member 512 may be an elastomer such as rubber.

When the first bottom door 6 is closed and the second bottom door 7 continues to be closed, in order to provide sufficient force to ensure that the first bottom door 6 is stationary at the closed position, the ratchet 521 is of a bidirectional gear structure, a first surface of the gear teeth of the ratchet 521 and the radius of the ratchet 521 enclose a first included angle α, a second surface and the radius of the ratchet 521 enclose a second included angle β, the first included angle α and the second included angle β are different in size, and the shape of the pawl 511 is arranged according to the matching of the gear teeth of the ratchet 521. In the present embodiment, the first included angle α is larger than the second included angle β.

When the first bottom door 6 and the second bottom door 7 are closed, taking the ballast clamping of the first bottom door 6 as an example, at this time, the second bottom door 7 is not completely closed, the second rotating shaft 4 needs to continue to rotate, the relative rotation occurs between the second crank throw 91 and the second connecting rod 92 and between the second connecting rod 92 and the second bottom door 7, so as to buffer and protect the second bottom door 7, thereby preventing the second bottom door 7 from directly impacting the vehicle body, the ratchet wheel 521 continuously rotates along with the second rotating shaft 4, the ratchet wheel 521 pushes the pawl 511, the pawl 511 overcomes the elastic force of the elastic element 512, jumps into the next adjacent tooth from the current tooth of the ratchet wheel 521, the first crank 81 rotates along with the pawl 511, the relative rotation occurs between the first crank 81 and the first connecting rod 82 and between the first connecting rod 82 and the first bottom door 6, thereby forming buffer protection for the first bottom door 6 and avoiding the first bottom door 6 directly impacting the vehicle body and continuing to do closing action. Similarly, when the first bottom door 6 and the second bottom door 7 are opened, the first bottom door 6 is opened before the second bottom door 7 due to the ballast clamping of the first bottom door 6, at this time, the second rotating shaft 4 continuously rotates in the reverse direction to open the second bottom door 7, the relative rotation occurs between the second crank throw 91 and the second connecting rod 92 and between the second connecting rod 92 and the second bottom door 7, so as to buffer and protect the second bottom door 7, thereby preventing the second bottom door 7 from directly striking the vehicle body, the ratchet 521 pushes the pawl 511 to make the pawl 511 overcome the spring force and fall into the next adjacent tooth from the current tooth of the ratchet 521 in the reverse direction, the first crank 81 rotates along with the pawl 511, the first crank 81 rotates with the first link 82 and the first link 82 rotates with the first bottom door 6, therefore, the first bottom door 6 is protected in a buffering mode, and the first bottom door 6 is prevented from directly impacting a vehicle body and being continuously opened to cause damage.

In this embodiment, two ends of the first bottom door 6 are movably connected to the second rotating shaft 4, and two ends of the second bottom door 7 are connected to the second rotating shaft 4, so as to enhance the structural stability and facilitate the smooth opening or closing of the first bottom door 6 and the second bottom door 7. In other embodiments, the first bottom door 6 may be movably connected to the second rotating shaft 4 at only one end, and the second bottom door 7 may be connected to the second rotating shaft 4 at only one end. For the sake of simplifying the description, only the connection structure between one end of the first bottom door 6 and the second rotating shaft 4 and the connection structure between one end of the second bottom door 7 and the second rotating shaft 4 are described above, and the connection structure between the other end of the first bottom door 6 and the second rotating shaft 4 and the connection structure between the other end of the second bottom door 7 and the second rotating shaft 4 may refer to the above description, and are not repeated herein.

In the present embodiment, the second rotating shaft 4, the second bottom door 7 and the first bottom door 6 are arranged in parallel such that the second bottom door 7 is positioned relatively between the second rotating shaft 4 and the first bottom door 6. In other embodiments, the first bottom door 6 and the second bottom door 7 are arranged side by side, and the first bottom door 6 and the second bottom door 7 are respectively parallel to the second rotating shaft 4.

In summary, the anti-pinch device for the hopper car provided by the utility model is provided with the two bottom doors, so that stone ballasts in the car body can be blocked doubly, the problem of material leakage caused by the fact that the bottom doors cannot be closed tightly after unloading is avoided, the working efficiency is improved, potential safety hazards such as vehicle derailment and the like caused by material leakage are avoided, the safety performance of the vehicle is improved, and more stone ballasts can be prevented from flowing out to cause waste; in addition, drive two bottom doors through the drive division and open or close, rethread first transmission assembly and second transmission assembly's transmission setting, avoid the action of opening and shutting of first bottom door to cause the interference to opening and shutting of second bottom door to make first bottom door and second bottom door independently open and shut.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. The utility model provides a material device is prevented pressing from both sides by hopper car which characterized in that, includes drive division, first pivot, transmission portion, second pivot, transmission assembly, first end door and second end door, wherein:

the driving part drives the first rotating shaft to do axial rotation action;

the transmission assembly comprises a first transmission assembly and a second transmission assembly, the first transmission assembly is connected with the first bottom door, and the second transmission assembly is connected with the first transmission assembly in a transmission mode so as to drive the first bottom door to be opened or closed.

2. The hopper car material clamping prevention device as claimed in claim 1, wherein said first transmission component is a pawl portion, said second transmission component is a ratchet portion, said pawl portion is connected with said first bottom door, said ratchet portion is fixedly connected with said second rotating shaft and is in meshed transmission with said pawl portion, wherein:

pawl portion includes pawl, elastic component, guide rail seat and base, the guide rail seat with first end door links to each other, the inside guide rail that is equipped with of guide rail seat, the one end of pawl stretches into in the guide rail seat, the other end is followed the guide rail seat stretch out and with ratchet portion meshes, the pawl is followed the guide rail slides and sets up, the base with the guide rail seat is fixed to be linked to each other, the elastic component set up in the guide rail, and its one end cup joint in the pawl stretch into serve, the other end with the base butt, the elastic component is followed the elastic deformation takes place for the guide rail.

3. The hopper car material clamping prevention device according to claim 2, wherein the pawl part further comprises an adjusting bolt, the adjusting bolt is fixedly connected with the base, one end of the adjusting bolt penetrates through the base and extends into the guide rail seat, and the end part of the elastic part is sleeved on the extending end of the adjusting bolt and is abutted against the base.

4. The hopper car material clamping prevention device as claimed in claim 2, wherein the elastic member is a spring.

5. The hopper car material clamping prevention device according to claim 2, wherein the ratchet part comprises a ratchet wheel and a ratchet wheel seat, the ratchet wheel seat is sleeved on the second rotating shaft and is fixedly connected with the second rotating shaft, the ratchet wheel is sleeved on the ratchet wheel seat and is fixedly connected with the ratchet wheel seat, and the ratchet wheel is meshed with the pawl.

6. The hopper car material clamping prevention device as claimed in claim 5, wherein the ratchet wheel is of a bidirectional gear structure, a first surface of the teeth of the ratchet wheel and the radius of the ratchet wheel enclose a first included angle, a second surface of the teeth of the ratchet wheel and the radius of the ratchet wheel enclose a second included angle, the first included angle is larger than the second included angle, and the pawl is in a shape matched with the teeth of the ratchet wheel.

7. The hopper car material clamping prevention device as claimed in claim 2, further comprising a first connection part, wherein the first connection part comprises a first crank and a first connecting rod, the first crank, the first connecting rod and the first bottom door are sequentially connected in a rotating manner, the first crank is movably arranged on the second rotating shaft, and the pawl part is fixed on the first crank.

8. The hopper car material clamping prevention device as claimed in claim 1, further comprising a second connection part, wherein the second connection part comprises a second crank throw and a second connecting rod, the second crank throw, the second connecting rod and the second bottom door are sequentially connected in a rotating manner, and the second crank throw is fixedly connected with the second rotating shaft.

9. The hopper car material clamping prevention device as claimed in claim 1, wherein the transmission part comprises a third crank throw, a pull rod and a fourth crank throw which are connected in turn in a rotating manner, the third crank throw is sleeved on the first rotating shaft and is fixedly connected with the first rotating shaft, and the fourth crank throw is sleeved on the second rotating shaft and is fixedly connected with the second rotating shaft.

10. The hopper car material clamping prevention device as claimed in claim 1, wherein the driving part is an air cylinder; or, the driving part is a cylinder; alternatively, the driving part is an electric cylinder.