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Automatic control device

An automatic control, ball screw technology, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve the problems of high control precision, low control precision, low cost, etc., and achieve high control precision , realize closed-loop control, and improve the effect of response speed

Inactive Publication Date: 2016-08-31
SHAANXI FAST GEAR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The automatic control device is divided into electric, pneumatic and other forms. The electric control mechanism is characterized by high control precision, small size and high cost.
Although the pneumatic control mechanism has low control precision and large volume, it is low in cost

Method used

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  • Automatic control device

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Embodiment Construction

[0022] The present invention is described in further detail below in conjunction with accompanying drawing:

[0023] see figure 1 , the present invention is assembled on the automatic transmission, and requires that the external dimensions should be as small as possible to facilitate the layout of the transmission system and the whole vehicle. Therefore, the gear-shifting motor 1 and the gear-selecting cylinder 11 are cross-placed, and a high-torque motor is selected as the gear-shifting motor. Motor 1, small cylinder as gear selection cylinder 11.

[0024] Such as figure 1 As shown, the gear-shifting motor 1 and the ball screw 2 are connected to transmit torque through an inner hexagonal shaft hole, and the shift lever 3 is respectively connected to the nut dial 4 and the shift dial 5 through splines. The thrust bearing 6 is used to limit the maximum displacement of the lead screw nut 7, thereby determining the maximum shift stroke of the mechanism. By setting a mechanical...

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Abstract

The invention discloses an automatic control device. Ball screws are connected through a screw nut, thrust bearings used for limiting the maximum displacement of the screw nut are arranged at the outer ends of the ball screws in a sleeving mode, and an output shaft of a gear shifting motor is connected to one ball screw; a gear shifting lever is connected to a nut shifting block and a gear-shifting shifting block through splines; the nut shifting block is installed on the screw nut, and the gear-shifting shifting block moves under the driving effect of a gear selecting air cylinder. The gear shifting motor and the gear selecting air cylinder can be independently controlled, and therefore the gear selecting and shifting time can be shortened; the ball screws and the gear selecting air cylinder can be arranged in a crossed mode, namely the rotation axes of the ball screws and the rotation axis of the gear selecting air cylinder are two orthometric lines in different planes, and the external dimension of the control device can be reduced to the maximum degree. Because the control device has the control accuracy of an electric system and the low cost and the high reliability of a pneumatic system, the cost of the whole device is lowered, and the reliability is improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of transmissions and relates to an automatic operating device. 【Background technique】 [0002] At present, automatic operating devices are widely used in the field of commercial vehicle transmissions. Since the automatic operating device can communicate with the automatic transmission controller conveniently, the control precision of the pure electric transmission is improved. At the same time, higher requirements are put forward for reliability and control accuracy. Automatic control devices are divided into electric, pneumatic and other forms. The electric control mechanism is characterized by high control precision, small size and high cost. Although the pneumatic control mechanism has low control precision and large volume, it is low in cost. 【Content of invention】 [0003] The object of the present invention is to overcome the above-mentioned shortcoming of prior art, provide an automatic control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/02F16H59/68F16H61/32F16H61/30F16H61/02
CPCF16H59/02F16H59/68F16H61/0204F16H61/30F16H61/32F16H2059/026F16H2061/301F16H2061/326
Inventor 王勐孙文军聂幸福叶欣范珊珊
Owner SHAANXI FAST GEAR CO