Load-carrying drive mechanisms for rail vehicle door systems
A technology for rail vehicles and drive mechanisms, which is applied to power control mechanisms, wing leaf control mechanisms, door devices, etc., can solve the problems of difficult processing, maintenance and replacement of screw nut pairs, and achieve the effect of compact structure
Active Publication Date: 2020-03-24
NINGBO CRRC TIMES TRANSDUCER TECH CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The drive is mostly a rotating motor plus a screw nut pair or a rotating motor plus a belt. The processing accuracy of the screw nut pair is high and it is not easy to process, maintain and replace. Using a belt drive requires a corresponding tensioning device.
Method used
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with accompanying drawings and embodiments.
[0016] like figure 1 , figure 2 , image 3 , Figure 4 As shown, the load-carrying drive mechanism for the rail vehicle door system includes a left rack 31, a right rack 32, a guide rail 5, a linear motor 1, a transmission gear 21, a drive gear 22, a screw rod 4, a nut 11, a left drive Door frame assembly 6, right door frame assembly 7, support guide rail 8.
[0017] The above-mentioned left rack 31 is a long straight rack 311, and the long straight rack 311 meshes with the transmission gear 21 below.
[0018] The head of the above-mentioned long straight rack is provided with a section of left protruding rack 312 corresponding to the plug section, which meshes with the driving gear 22 .
[0019] The above-mentioned right rack 32 is a long straight rack 321, and the long straight rack 321 meshes with the transmission gear 21 above.
[0020] The head ...
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The invention discloses a bearing drive mechanism for a rail vehicle door system. A transmission gear is connected to the middle part of a lead guide rail, a left rack and a right rack are arranged above and below the transmission gear separately and engaged with the transmission gear, lead is carried out between the left rack and the right rack, and the lead guide rail by a left X-directional guide mechanism and a right X-directional guide mechanism separately, and a driver drives the left rack and the right rack to move towards each other or in opposite directions; the two ends of a support guide rail are connected to a left support and a right support through a Y-directional guide mechanism separately; a left door carrying frame assembly and a right door carrying frame assembly comprise a left door carrying frame, a right door carrying frame, a left linkage element and a right linkage element, the left door carrying frame and the right door carrying frame are slidably connected to the left side and the right side of the support guide rail, the left door carrying frame is connected through the left linkage element and capable of moving in the Y direction relative to the left rack, and the right door carrying frame is connected through the right linkage element and capable of moving in the Y direction relative to the right rack; a left projecting rack and a right projecting rack are arranged on the corresponding sliding-plug sections of the head parts of the left rack and the right rack, and are engaged with a drive gear separately; and the drive gear enables the support guide rail to move in the Y direction.
Description
technical field [0001] The invention relates to load-carrying drive mechanisms for rail vehicle door systems. Background technique [0002] Screw transmission mechanisms are widely used in load-bearing drive mechanisms in door systems of urban rail vehicles and public transport vehicles. In the sliding door system, the guiding mechanism is currently used more as a long-short axis guiding system. The long axis realizes the direction of opening and closing the door, and the short axis realizes the movement guidance of the sliding direction. The drive is mostly a rotating motor plus a screw nut pair or a rotating motor plus a belt. The processing accuracy of the screw nut pair is high and the processing, maintenance and replacement are not easy. The use of a belt drive requires a corresponding tensioning device. [0003] With the development of urban rail and bus door systems, there are higher requirements for the functionality and reliability of the components of the sliding ...
Claims
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IPC IPC(8): E05F15/652E05D13/00B61D19/02B61D19/00
CPCB61D19/003B61D19/02E05D13/00E05F15/652
Inventor 黄兵王啸郑华段东梅
Owner NINGBO CRRC TIMES TRANSDUCER TECH CO LTD