CN204037562U - A kind of bottom door of railway hopper car open and close system - Google Patents
A kind of bottom door of railway hopper car open and close system Download PDFInfo
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- CN204037562U CN204037562U CN201420438544.1U CN201420438544U CN204037562U CN 204037562 U CN204037562 U CN 204037562U CN 201420438544 U CN201420438544 U CN 201420438544U CN 204037562 U CN204037562 U CN 204037562U
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Abstract
The utility model discloses a kind of bottom door of railway hopper car open and close system.Comprise and be arranged at bottom door bottom hopper car and bottom door opening and closing transmission mechanism, also comprise the enabling gear that is arranged at ground and close door shield; Bottom door opening and closing transmission mechanism is the double-four link mechanism having movement dead, comprises the bearing, transmission shaft, bottom door connecting rod and the activation lever that are fixed on lower car body, and activation lever adopts bi-directional drive to realize " U " shape integral type lever construction of opening and closing bottom door.The utility model proposes a kind of control system realizing double action opening and closing bottom door for existing bottom door opening and closing mechanism, utilize the cooperation of the positive and negative both direction of the mechanism be arranged on vehicle and the open and close door shield being fixed on ground, no matter vehicle along one, two either direction travel enter unloading apron can switch bottom door voluntarily, without the need to manual operation or by any auxiliary power, not only save train marshalling list and unloading time, vehicle operation efficiency is provided, also reduces the risk of maloperation.
Description
Technical field
The utility model relates to railway freight wagon design and manufacturing technology field, especially belongs to railway truck automatically-controlled door design and manufaction technical field, particularly a kind of bottom door of railway hopper car open and close system.
Background technology
Railway fortune coal lorry bottom door opening and closing mechanism is owing to being subject to the restriction of vehicle structure and vehicle gauge, usually all vehicle bottom or sidepiece can only be arranged on, utilize pneumatic, hydraulic pressure, opening and closing that the mode such as automatically controlled realizes bottom door, in utilization, find that there are the following problems: complex structure, complicated operation, driving efficiency are low, deadweight is comparatively large, rate of discharging is low and manufacture, use the shortcomings such as maintenance cost is high.Therefore, be necessary that designing a kind of novel railway transports the operation efficiency of coal lorry bottom door opening and closing mechanism raising fortune coal lorry and reduce manufacture, utilization maintenance cost.
Current railway fortune coal lorry bottom door open-close device mainly adopts " large blade " switching mechanism, top locking-type switching mechanism, vertical enabling switching mechanism, quick-release type bottom door opening and closing mechanism.
The action principle of " large blade " switching mechanism is: time pneumatic, and two way cylinder drives the tooth bar be contained in before it to make pinion rotation, and the rotation of gear makes again the toggle linkage on transmission shaft rotate, and promotes bottom door pull bar, thus realizes the opening and closing of bottom door.But this mechanism's self-locking property is poor, bottom door in operational process, may be caused from opening.
Top locking-type switching mechanism adds one and crosses the connecting rod composition just can opened at dead point on " large blade " switching mechanism basis, makes lock body be locked in assigned address, defines secondary locking states.All there is the deficiencies such as complex structure, driving efficiency are low, deadweight is comparatively large, efficiency is low in above Liang Zhong mechanism, and adopt above Liang Zhong mechanism time, lower car body space can not get effective utilization, the raising that the every linear meter(lin.m.) of restriction vehicle Specifeca tion speeification is heavy.
It is pneumatic that vertical enabling switching mechanism can realize wind control, also can realize automatically controlled pneumatic.Its action principle: time pneumatic, push rod chuck on double-acting cylinder is released to the right, actuating linkage composition is driven to rotate clockwise around bearing seat composition, rotate counterclockwise around transmission shaft composition by connecting lever drives crank throw, promote to connect lever, hinged because connecting fulcrum block on lever and bottom door, left side bottom door is closed; Meanwhile, the rotation drive crank throw be fixed on transmission shaft of transmission shaft composition also rotates counterclockwise, and pulls connection lever that crank throw is rotated counterclockwise, thus two on the right of being closed by connection lever fans bottom doors.The driving efficiency of this mechanism increases, and lower car body space is utilized effectively, heavy favourable to the every linear meter(lin.m.) of raising.According to automatically controlled pneumatic time, rate of discharging will be greatly improved, but mechanism structure still more complicated.
Self lighting type bottom door opening and closing mechanism is made up of the bottom door opening and closing mechanism on vehicle and surface facility.Its action principle: when vehicle forwards runs, first enabling side runs into wayside equipment, by enabling side wheel, opening lever is rotated along clockwise direction, and drive drive axis, after dead point is crossed by mechanism, dependence gravity is opened by bottom door automatically; Under door opening state, vehicle continues forwards to run pass reveal and runs into wayside equipment, by side wheel of closing the door, pass door lever is rotated along clockwise direction, drive drive axis, after dead point is crossed by mechanism, adjust bearing by enabling side and stop mechanism to be rotated further, realize bottom door and finally locate.This mechanism can realize fixing one direction run switch bottom door, each car of unit train all must by one, two orders are neatly organized into groups, but when transporting coal lorry and installing reverse contrary in marshalling station's marshalling direction with surface facility, unloading can not be realized, therefore, this mechanism is strict with the direction that fortune coal lorry enters unloading apron, be unfavorable for the raising of transporting coal efficiency of wagon utilization, there is considerable influence to the efficiency of rail transportation system simultaneously, on the other hand, because vehicle can only unidirectionally be unloaded, loaded vehicle also can only unidirectional operation, therefore wheel eccentric wear is easily caused, increase car inspection and maintenance work amount.
Chinese patent 03236004.5 discloses a kind of hopper van bottom door open/close mechanism, Chinese patent 201220443892.9 discloses a kind of railway truck bottom door switch apparatus, and Chinese patent application 201310238046.2 discloses a kind of railroad hopper formula lorry bottom door opening and closing mechanism.Above-mentioned each file all discloses different bottom door opening and closing mechanisms, but does not all solve aforementioned " large blade " switching mechanism, top locking-type switching mechanism, vertical enabling switching mechanism, self lighting type bottom door opening and closing mechanism Problems existing completely.
Summary of the invention
The utility model discloses a kind of bottom door of railway hopper car open and close system according to the deficiencies in the prior art.Problem to be solved in the utility model is to provide the two-way bottom door opening and closing control system of unloading voluntarily of railway hopper car that the positive and negative way traffic of a kind of railway hopper car all can realize automatic shutter.
The utility model is achieved through the following technical solutions:
Bottom door of railway hopper car open and close system, comprises and is arranged at bottom door bottom hopper car and bottom door opening and closing transmission mechanism, also comprises the enabling gear that is arranged at ground and closes door shield;
Bottom door opening and closing transmission mechanism is the double-four link mechanism having movement dead, comprise the bearing, transmission shaft, bottom door connecting rod and the activation lever that are fixed on lower car body, bearing is used for supporting shaft, transmission shaft is fixed two cover Double-end crank connecting rods, often overlap Double-end crank connecting rod two ends link by bottom door connecting rod and bottom door, two overlap activation lever is individually fixed in transmission shaft two ends for keeping off or close door shield and contact rotating drive shaft and realize bottom door opening and closing with opening the door;
It is characterized in that: described activation lever is " U " shape integral type lever that bi-directional drive realizes opening and closing bottom door, and be connected and fixed with transmission shaft bottom " U " shape of activation lever, the crank levers of " U " shape is enabling arm, the crank levers of another side is for closing gate arm.
Described two cover activation lever are an activation lever and two activation lever that specular is fixed on transmission shaft two ends, and the motion track of each activation lever enabling arm end and the distance of open the door gear longitudinal centerline and orbit centre are greater than each activation lever and close the motion track of gate arm end and the distance of closing door shield longitudinal centerline and orbit centre.
Described each activation lever enabling arm end has and opens the door and keep off the enabling roller of Structure deformation, and each activation lever closes gate arm end the roller of closing the door contacted with pass door shield; The activation lever at transmission shaft two ends all becomes to be greater than 0 degree of overturning angle and arranges with ground.
The arm configuration of closing the door of above-mentioned transmission shaft two ends activation lever is identical, transmission shaft, closes gate arm and closes the door roller at grade; The enabling arm of two activation lever and transmission shaft, enabling roller are at grade; At grade, enabling roller to be fixed on enabling arm by an elbow and to be positioned at below plane that transmission shaft and enabling arm formed for the enabling arm of an activation lever and transmission shaft.
Described bearing is provided with for limiting the offside lever backstop of activation lever.
Described bottom door length of connecting rod is adjustable.
Described pass door shield has the two-stage gradient, below the gradient be less than the gradient above.
Described enabling gear has two inclined-planes, two inclined-planes cross formed enabling gear vertex.
Bottom door spring bottom door being applied to Self-locking moment is provided with at the bottom of described bottom door and hopper car.
Described bearing is provided with the bottom door backstop for limiting bottom door open position.
The utility model railway hopper car can realize two way automatic shutter bottom door and control, control system makes vehicle enter unloading apron along any one party to traveling can realize automatic shutter bottom door, whole system, without the need to manual operation or by any auxiliary power, can avoid maloperation; System architecture is compact, simple and reliable; The railway hopper car installing this bottom door opening and closing system can exempt train by fixed-direction Arrange in groups, save the turn round time, empty, loaded vehicle all can travel along one, two any direction, avoids vehicle eccentric wear, empty, loaded vehicle all can travel along one, two any direction, avoids vehicle eccentric wear.
Bottom door transmission device is a set of double-four link mechanism, opens, closes bottom door by same drive axis realization interlock; Mechanism's self-locking is the opposing torque that the lever backstop of the bearing relied on vehicle body bottom frame produces, offset both sides bottom door and goods gravity produce and moment, bottom door connecting rod elongated central line has offset relative to center transmission shaft, makes bottom door and goods gravity form self-locking moment to transmission shaft; It is rely on the enabling roller of the U-shaped activation lever of mechanism both sides to open the door to keep off contacting with surface facility and drive transmission shaft to promote bottom door that bottom door is opened, and crosses double-four link mechanism dead point, and opens voluntarily; It is rely on close the door roller and the surface facility of mechanism both sides U-shaped activation lever to close door shield contact zones to move transmission shaft and rotate backward that bottom door is closed, and promotion bottom door crosses mechanism dead point, and closes voluntarily, until touch lever backstop to complete locking; For ensureing the safety of empty wagons mechanism self-locking, mounting spring on hopper car, Self-locking moment being applied to bottom door, guaranteeing that bottom door is not excessively crossed dead point because vibrating in vehicle operating voluntarily and opened.
No matter vehicle is along forward or inverted running for the utility model, and bottom door opening and closing direction and drive axis direction remain constant; Double-end crank connecting rod and bottom door connecting rod can ensure to open the door in the synchronous dead point of crossing of double-four link mechanism, and front and back bottom door open angle is similar to, lural discharge flow rate before and after not affecting.
Two the U-shaped activation lever in left and right, possess an enabling roller and a roller of closing the door respectively, open and close roller path of motion is on different two planes, and two planes are designed with spacing in the horizontal direction, and outside, roller of closing the door is interior for enabling roller; Vehicle forward runs to close the door control roller mechanism switch gate by an activation lever enabling roller and two activation lever respectively, adopts two activation lever enabling rollers and an activation lever to close the door control roller mechanism switch gate during vehicle inverted running; When forward and reverse both direction is run, mechanism runs and is all smoothness and links up, the gear that opens the door on the left of enabling roller contact surface facility could open the door, continue to travel forward, close the door after closing door shield on the right side of roller contact surface facility and just can close the door, one, two activation lever and surface facility coordinate on switch bottom gate logic and do not conflict, the shape of U-shaped activation lever, open and close door roller path of motion staggers, and can ensure, with surface facility, unnecessary contact does not occur and cause door opening/closing sequence disorderly.
Both sides activation lever all becomes to be greater than 0 degree of overturning angle and arranges with ground, with vertical direction angle ψ, and ensure that enabling roller is higher than pass door shield, does not miss slamming door shield after bottom door is closed.Being obliquely installed one is under guaranteeing that switch gate moment direction always meets the prerequisite of rotating and requiring, is conducive to the rotational angle increasing transmission shaft; Two is that suitable diff-H is stayed at vertical direction in guarantee two activation lever open and close roller axle center, and the enabling roller of two activation lever, higher than pass door shield, can ensure that the two can not contact; One, two activation lever close the door roller axle center height unanimously, can ensure that the forward and reverse traveling of vehicle all makes mechanism cross dead point at same pass door shield height and closes the door.
It is identical that both sides U-shaped activation lever closes gate arm shape; Enabling arm can be designed to difformity, namely the enabling arm of an activation lever and transmission shaft are at grade, enabling roller to be fixed on enabling arm by an elbow and to be positioned at below plane that transmission shaft and enabling arm formed, enabling arm due to an activation lever is in the front of enabling roller when opening the door, avoid enabling arm and surface facility to open the door to keep off and contact, mechanism and surface facility produce movement interference.
Two bearing left and right specular on vehicle body bottom frame, two foundation door length of connecting rod need be checked through calculating, and a Shi Shi mechanism double-four link mechanism crosses dead point simultaneously, and bottom door aperture is close, and two is make drive axis angle as far as possible little, and bottom door aperture is as far as possible large; Activation lever enabling rotational angle does not cross vertical position, and θ at an angle, and lever backstop and bottom door backstop are for the rotational angle range ψ-θ of the open and close position and transmission shaft that limit mechanism.Lever backstop bolt length is adjustable, and two foundation door length of connecting rod are adjustable, is used for the eccentric throw of regulating connecting rod center and center transmission shaft and crack between a door and its frame thereof.Surface facility closes door shield and has the two-stage gradient, delay below, above steep, the bottom gradient need be less than enabling position activation lever and vertical direction angle theta, the forward and reverse traveling of vehicle roller of closing the door can being made identical with closing the moment direction of closing the door that produces of door shield, making transmission shaft rotate in the same direction all the time.
One, two U-shaped activation lever installation sites and angle are relative to car body longitudinal plane of symmetry specular; Surface facility opens the door and keeps off distance and orbit centre distance l
1be greater than and close door shield apart from orbit centre distance l
2, open and close door shield respectively only with the open and close roller contact in Different Plane, evade unnecessary contact.
Surface facility opens the door the height of gear vertex U-shaped activation lever enabling roller when must not cross dead point lower than mechanism; Closing door shield vertex height must not higher than after wheel wear, and height of car reduces, and mechanism's complete self-locking position U-shaped activation lever is closed the door the height of roller, and must not higher than two activation lever enabling roller height; Close bottom door shield and install push rod spring, under spring stiffness and amount of compression can meet new wheeled vehicle height, dead point is crossed on roller top of closing the door.
The utility model helpfulness: the utility model is complicated for existing bottom door opening and closing mechanism structure, the problem such as take up room large, unidirectional dead point switching mechanism of crossing is improved, a kind of control system realizing double action opening and closing bottom door is proposed, utilization is arranged on the mechanism on vehicle and is fixed on opening of ground, just close door shield, the cooperation of anti-both direction, no matter vehicle is along one, two either directions travel enter unloading apron can switch bottom door voluntarily, without the need to manual operation or by any auxiliary power, not only save train marshalling list and unloading time, vehicle operation efficiency is provided, also reduce the risk of maloperation.
Accompanying drawing explanation
Fig. 1 is the utility model forward opening and closing bottom door schematic diagram;
Fig. 2 is that the utility model turns around opening and closing bottom door schematic diagram;
Fig. 3 is the self-locking of the utility model double-four link mechanism and opening and closing principle schematic
When Fig. 4 is the vehicle forward travel of the utility model bottom door opening and closing system, an activation lever enabling roller keeps off with enabling and coordinates enabling schematic diagram;
Fig. 5 be the vehicle of the utility model bottom door opening and closing system when turning around to travel two activation lever enabling rollers coordinate enabling schematic diagram with opening the door to keep off;
When Fig. 6 is the vehicle forward travel of the utility model bottom door opening and closing system, two activation lever roller of closing the door coordinates with pass door shield schematic diagram of closing the door;
Fig. 7 be the vehicle of the utility model bottom door opening and closing system when turning around to travel activation lever close the door roller with close door shield and coordinate schematic diagram of closing the door;
Fig. 8 is the installing condition schematic diagram of mechanism from lock-bit activation lever of the utility model bottom door opening and closing system.
In figure: 1 is a U-shaped activation lever, and 2 is bearings, and 3 is bottom doors, 4 is bottom door connecting rods, and 5 is transmission shafts, and 6 is close door shield, 7 is two U-shaped activation lever, and 8 is the gears that open the door, and 9 is bottom door springs, 10 is ground, and A is vehicle operating direction, and B is bottom door opening direction, F is roller stress moment, and R is drive axis direction, and H is the distance on enabling roller and ground, h is the diff-H of enabling roller and roller of closing the door, D
1the eccentric throw of left bottom door connecting rod center and center transmission shaft, D
2the eccentric throw of right bottom door connecting rod center and center transmission shaft, l
1open the door gear longitudinal centerline and orbit centre distance, l
2it is the distance of closing door shield longitudinal centerline and orbit centre, ψ is close the door an activation lever and vertical direction angle, and θ is enabling position activation lever and vertical direction angle, and ψ-θ is drive axis angle, 51 is that an activation lever is closed the door roller, 52 is activation lever enabling rollers, and 53 is bottom door backstop, and 54 is lever backstop, 55 is that two activation lever are closed the door roller, 56 is two activation lever enabling rollers, and 57 is Double-end crank connecting rods, and 58 is springs.
Detailed description of the invention
Below by embodiment, the utility model is specifically described; the present embodiment is only for being further detailed the utility model; but can not be interpreted as the restriction to the utility model protection domain, some nonessential improvement that those skilled in the art makes according to above-mentioned content of the present utility model and adjustment also belong to the scope of the utility model protection.
Composition graphs 1 to Fig. 8.
Bottom door of railway hopper car open and close system, comprises and is arranged at bottom door 3 bottom hopper car and bottom door opening and closing transmission mechanism, also comprises the enabling gear 8 that is arranged at ground and closes door shield 6;
Bottom door opening and closing transmission mechanism is the double-four link mechanism having movement dead, comprise the bearing 2, transmission shaft 5, bottom door connecting rod 4 and the activation lever that are fixed on lower car body, bearing 2 is for supporting shaft 5, transmission shaft 5 is fixed two cover Double-end crank connecting rods 57, often overlap Double-end crank connecting rod 57 two ends to be linked by bottom door connecting rod 4 and bottom door 3, two cover activation lever are individually fixed in transmission shaft 5 two ends for enabling gear 8 or close door shield 6 and contact rotating drive shaft 5 and realize bottom door opening and closing;
Activation lever is " U " shape integral type lever that bi-directional drive realizes opening and closing bottom door, and be connected and fixed with transmission shaft 5 bottom " U " shape of activation lever, the crank levers of " U " shape is enabling arm, and the crank levers of another side is for closing gate arm.
Two cover activation lever are an activation lever 1 and two activation lever 7 that specular is fixed on transmission shaft 5 two ends, each rotary motion trace of activation lever enabling arm end and the distance l of enabling gear 8 longitudinal centerline and orbit centre
1be greater than each activation lever close the rotary motion trace of gate arm end and close the distance l of door shield 6 longitudinal centerline and orbit centre
2.
Each activation lever enabling arm end has the enabling roller 52,56 with enabling gear 8 Structure deformation, and each activation lever closes gate arm end the roller 51,55 of closing the door contacted with pass door shield 6; Each activation lever all becomes to be greater than 0 degree of overturning angle and arranges, with vertical direction angle ψ with ground.
The arm configuration of closing the door of each activation lever is identical, and each activation lever is closed the door roller 51,55 coaxial; Enabling roller 56 axle center of two activation lever 7 is higher than transmission shaft 5 axle center; Enabling roller 52 axle center of an activation lever 1 is lower than transmission shaft 5 axle center, and enabling roller 52 is fixed on enabling arm by a downward elbow.
Bearing 2 is provided with for limiting the offside lever backstop 54 of activation lever.
Bottom door connecting rod 4 adjustable length.
Close door shield 6 and there is the two-stage gradient, below the gradient be less than the gradient above, and be less than θ.
Close door shield 6 afterbody and have downward inclined-plane, roller of closing the door by closing descending after door shield 6 vertex, until spring 58 discharges completely, for the bounce-back of release spring 58.
The bottom door spring 9 bottom door 3 being applied to Self-locking moment is provided with at the bottom of hopper car.
Bearing 2 is provided with the bottom door backstop 53 for limiting bottom door open position.
As depicted in figs. 1 and 2, two the U-shaped activation lever in left and right, all possess 52,56 and one, an enabling roller respectively to close the door roller 51,55, enabling roller 52,56 and roller 51,55 path of motion of closing the door is not at same perpendicular, and enabling roller 52,56 is distal to apart from vehicle center roller 51,55 of closing the door;
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 6, activation lever adopts U-shaped structure, and the enabling arm that U-shaped arm is formed is different from arm lengths of closing the door, activation lever 1 arm that opens the door is designed to hook-shaped and curved downwards, the moment that enabling roller 52,56 pairs of transmission shafts 5 produce makes transmission shaft 5 rotate in the same direction all the time and opens bottom door 3, the moment that roller 51,55 pairs of transmission shafts 5 of closing the door produce makes transmission shaft 5 rotate closedown bottom door 3 in the same direction all the time, turns to or hitch bar without the need to any;
Each activation lever is fixed on transmission shaft 5 two ends, and installs relative to vehicle center specular, and activation lever rotates through transmission shaft 5 and drives Double-end crank 57 and double-four link mechanism thereof to rotate;
Enabling gear 6 is distal to apart from orbit centre and closes door shield 8, and when mechanism can be made to rotate, enabling gear 8 can not roll 51,55 and take turns and contact with closing the door, and pass door shield 6 does not contact with enabling roller 52,56;
Two U-shaped activation lever all becoming to be greater than 0 degree of overturning angle with ground and install on transmission shaft 5, can make the distance on close the door roller 55 and the ground of two activation lever lower than enabling roller 52, and the roller 55 that ensures to close the door leaves diff-H with enabling roller 52 at vertical direction;
The height of the most end of enabling roller 52 when enabling gear 8, the height closing door shield 6 must not cross dead point lower than four-bar linkage all respectively, roller 55 of closing the door; Closing door shield 6 height must not higher than the enabling roller 56 of two activation lever;
Symmetrical bearing 2, the lever backstop 54 of adjustable length and two foundation door connecting rods 4 of different length are used for eccentric throw, the crack between a door and its frame at regulating connecting rod center and transmission shaft 5 center; Bearing 2 is provided with two bottom door backstops 53, for limiting bottom door 3 open angle and activation lever rotational angle;
Closing door shield 6 be the two-stage gradient, and the ratio of slope moment that roller 51,55 and pass door shield 6 produce that can ensure to close the door is prescribed direction; Close spring 58 amount of compression bottom door shield 6 and can adapt to the minimum altitude of wheel wear rear vehicle, spring 58 rigidity can produce enough moment of closing the door under new wheeled vehicle height.
Operation describes:
As Fig. 1 and Fig. 4, vehicle runs unloading by arrow A forward, an activation lever 1 is opened the door, and roller 52 is first to be contacted with enabling gear 8, produce moment F as shown in Figure 4, transmission shaft 5 is driven to rotate, double-four link mechanism crosses dead point, bottom door 3 is opened naturally by self gravitation, bottom door 3 stops by bottom door backstop 53, turn to position shown in Fig. 6, vehicle continues to move forward, two toggle linkages 7 of vehicle opposite side roller 55 of closing the door contacts with pass door shield 6, produce moment F as shown in Figure 6, transmission shaft 5 and double-four link mechanism is driven to rotate, roller 55 of closing the door is climbed, until Ding Guo mechanism dead point, bottom door 3 leans on gravity reversal's rotating mechanism until stopped by lever backstop 54, complete and close the door.
As Fig. 2 and 5, vehicle turns around to run unloading, two toggle linkages 7 open the door, and roller 56 is first to be contacted with enabling gear 8, produce moment F as shown in Figure 5, transmission shaft 5 is driven to rotate, double-four link mechanism crosses dead point, bottom door 3 is opened naturally by self gravitation, bottom door 3 stops by bottom door backstop 53, turn to position shown in Fig. 7, vehicle continues to move forward, a toggle linkage 1 of vehicle opposite side roller 51 of closing the door contacts with pass door shield 6, produce moment F shown in Fig. 7, transmission shaft 5 and double-four link mechanism is driven to rotate, roller 51 of closing the door is climbed, until Ding Guo mechanism dead point, bottom door 3 leans on gravity reversal's rotating mechanism until stopped by lever backstop 54, complete and close the door.
The enabling moment F direction that both direction travels is identical, and moment F direction of closing the door is also identical.Because enabling roller 52,56 is farther apart from vehicle center, corresponding enabling gear 8 is also farther apart from closing door shield 6, and roller 51,55 of closing the door when vehicle operating and activation lever are rotated can avoid enabling gear 8, avoids unnecessary contact.
As shown in Figure 8, two activation lever 7 open the door roller 56 axle center higher than pass door shield vertex, so oppositely at closing time, enabling roller 52 can not contact with vertex vertex.
The above was the optimum way that dead point bottom door open-close device realizes double action opening and closing bottom door; designer for the design field may utilize the utility model principle to do the retouching of the forms such as name modifications, installation site exchange, material improvement, structural Shape Optimization, and any retouching on this basis and optimization are all in the utility model protection domain.
Claims (9)
1. a bottom door of railway hopper car open and close system, comprises and is arranged at bottom door bottom hopper car and bottom door opening and closing transmission mechanism, also comprises the enabling gear that is arranged at ground and closes door shield;
Bottom door opening and closing transmission mechanism is the double-four link mechanism having movement dead, comprise the bearing, transmission shaft, bottom door connecting rod and the activation lever that are fixed on lower car body, bearing is used for supporting shaft, transmission shaft is fixed two cover Double-end crank connecting rods, often overlap Double-end crank connecting rod two ends link by bottom door connecting rod and bottom door, two overlap activation lever is individually fixed in transmission shaft two ends for keeping off or close door shield and contact rotating drive shaft and realize bottom door opening and closing with opening the door;
It is characterized in that: described activation lever is " U " shape integral type lever that bi-directional drive realizes opening and closing bottom door, and be connected and fixed with transmission shaft bottom " U " shape of activation lever, the crank levers of " U " shape is enabling arm, the crank levers of another side is for closing gate arm.
2. bottom door of railway hopper car open and close system according to claim 1, it is characterized in that: described two cover activation lever are an activation lever and two activation lever that specular is fixed on transmission shaft two ends, the motion track of each activation lever enabling arm end and the distance of open the door gear longitudinal centerline and orbit centre are greater than each activation lever and close the motion track of gate arm end and close the distance of door shield longitudinal centerline and orbit centre.
3. bottom door of railway hopper car open and close system according to claim 2, is characterized in that: described each activation lever enabling arm end has and opens the door and keep off the enabling roller of Structure deformation, and each activation lever closes gate arm end the roller of closing the door contacted with pass door shield; Each activation lever all becomes to be greater than 0 degree of overturning angle and arranges with ground.
4. bottom door of railway hopper car open and close system according to claim 3, is characterized in that: the arm configuration of closing the door of each activation lever is identical, roller central coaxial of closing the door; Enabling roller center on the enabling arm of two activation lever is higher than center transmission shaft; The enabling roller of an activation lever is fixed on enabling arm by a downward elbow, and is positioned at below center transmission shaft.
5. bottom door of railway hopper car open and close system according to claim 4, is characterized in that: described bearing is provided with for limiting the offside lever backstop of activation lever.
6. bottom door of railway hopper car open and close system according to claim 4, is characterized in that: described bottom door length of connecting rod is adjustable.
7. bottom door of railway hopper car open and close system according to claim 4, is characterized in that: described pass door shield has the two-stage gradient, below the gradient be less than the gradient above, the two-stage gradient is less than enabling position and closes gate arm and vertical direction angle.
8. bottom door of railway hopper car open and close system according to claim 4, is characterized in that: be provided with bottom door spring bottom door being applied to Self-locking moment at the bottom of described hopper car.
9. bottom door of railway hopper car open and close system according to claim 4, is characterized in that: described bearing is provided with the bottom door backstop for limiting bottom door open position.
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| CN201420438544.1U CN204037562U (en) | 2014-08-05 | 2014-08-05 | A kind of bottom door of railway hopper car open and close system |
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| CN201420438544.1U CN204037562U (en) | 2014-08-05 | 2014-08-05 | A kind of bottom door of railway hopper car open and close system |
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| RU210581U1 (en) * | 2022-01-17 | 2022-04-21 | Общество С Ограниченной Ответственностью "Рейл1520 Ай Пи" (Ооо "Рейл1520 Ай Пи") | OPENING-CLOSING MECHANISM OF UNLOADING HATCHES OF HOPPER CAR |
| CN114802323A (en) * | 2022-04-07 | 2022-07-29 | 中车眉山车辆有限公司 | Particulate matter unloading device of special railway hopper car |
| WO2023207654A1 (en) * | 2022-04-25 | 2023-11-02 | 中车株洲车辆有限公司 | Top cover opening and closing apparatus and railway wagon |
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- 2014-08-05 CN CN201420438544.1U patent/CN204037562U/en active Active
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| US10689011B2 (en) | 2015-10-10 | 2020-06-23 | Crrc Qiqihar Rolling Stock Co., Ltd. | Wagon and vehicle body assembly thereof |
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| CN105216807B (en) * | 2015-11-12 | 2018-05-25 | 中车资阳机车有限公司 | A kind of non-maintaining collision system of ore hopper car shedding mechanism |
| CN108301722A (en) * | 2018-03-12 | 2018-07-20 | 中国恩菲工程技术有限公司 | Door opening and closing mechanism |
| CN108301722B (en) * | 2018-03-12 | 2024-01-12 | 中国恩菲工程技术有限公司 | Door opening and closing mechanism |
| RU204266U1 (en) * | 2020-09-17 | 2021-05-17 | РЕЙЛ 1520 АйПи ЛТД | MECHANISM FOR OPENING AND CLOSING THE COVERS OF THE UNLOADING HORSES OF THE FREIGHT TRANSPORT |
| RU210581U1 (en) * | 2022-01-17 | 2022-04-21 | Общество С Ограниченной Ответственностью "Рейл1520 Ай Пи" (Ооо "Рейл1520 Ай Пи") | OPENING-CLOSING MECHANISM OF UNLOADING HATCHES OF HOPPER CAR |
| CN114802323A (en) * | 2022-04-07 | 2022-07-29 | 中车眉山车辆有限公司 | Particulate matter unloading device of special railway hopper car |
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| WO2023207654A1 (en) * | 2022-04-25 | 2023-11-02 | 中车株洲车辆有限公司 | Top cover opening and closing apparatus and railway wagon |
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