Opening-closing device for bottom door of vehicle

A bottom door opening and closing, vehicle technology, applied in the direction of hopper cars, transport passenger cars, transportation and packaging, etc., can solve the problems of slow speed, complex structure, low efficiency, etc., and achieve the effect of fast unloading speed and high unloading efficiency

Inactive Publication Date: 2012-11-07
CRRC YANGTZE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a vehicle bottom door opening and closing device, which can sol

Method used

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  • Opening-closing device for bottom door of vehicle
  • Opening-closing device for bottom door of vehicle
  • Opening-closing device for bottom door of vehicle

Examples

Experimental program
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Embodiment Construction

[0026] see figure 1 , a structural schematic diagram of a vehicle bottom door opening and closing mechanism provided by an embodiment of the present invention. The device includes a vehicle bottom door opening and closing mechanism and a bottom surface facility structure; wherein, the vehicle bottom door opening and closing mechanism includes a double screw rod 7 and a door opening arm 8 , a door closing arm 5, a main shaft 6, a long connecting rod 4, a short connecting rod 9, two preload springs 1 and two bottom door panels 2, wherein the door opening arm 8 is fixedly connected with 6 ends of the main shaft, and the door closing arm 5 is connected with The other end of the main shaft 6 is fixedly connected, the middle part of the main shaft 6 is fixedly connected with the double screw rod 7, one end of the double screw rod 7 is flexibly connected with one end of the long connecting rod 4, and the other end of the double screw rod 7 is connected with one end of the short connec...

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PUM

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Abstract

The invention discloses an opening-closing device for a bottom door of a vehicle and belongs to vehicular door mounting and demounting techniques. The device comprises a vehicular bottom door opening-closing mechanism and a bottom face facility structure. The vehicular bottom door opening-closing mechanism comprises a pair of duplex screws, a door opening arm, a door closing arm, a spindle, a long connecting rod, a short connecting rod, two elastic devices and two bottom door sheets. The bottom face facility structure comprises a door opening contact plate and a door closing contact plate which are positioned on two sides of the vehicle respectively, the door opening arm contacts with the door opening contact plate, and the door closing arm contacts with the door closing contact plate. Self-locking of the bottom door is completed under intrinsic locking force of the vehicular bottom door opening-closing mechanism, automatic unloading during low-speed running of the vehicle is realized, and unloading is quick while unloading efficiency is high.

Description

technical field [0001] The invention belongs to vehicle door loading and unloading technology, and relates to a vehicle bottom door opening and closing device. Background technique [0002] At present, the bottom door opening and closing device of railway freight cars generally needs to rely on pneumatic, hydraulic or electric components to open and close the bottom door. Therefore, the general bottom door opening and closing mechanism has disadvantages such as complex mechanism, low transmission efficiency, large self-weight, and poor unloading effect. . [0003] The opening and closing device of the bottom door of the railway freight car generally adopts a "big knife" opening and closing mechanism and a top lock opening and closing mechanism. [0004] The working principle of the "big knife type" opening and closing mechanism is: when the wind is blown, the gear rack installed in front of the two-way air cylinder drives the gear to rotate, and the rotation of the gear mak...

Claims

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Application Information

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IPC IPC(8): B61D7/26
Inventor 李晓军陶德强张仙花林量才刘凤伟崔红汤楚强姜强俊
Owner CRRC YANGTZE CO LTD
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