A vehicle transmission box with integrated mechanical vacuum pump
A mechanical vacuum pump and transmission box technology, applied in the field of automobile transmission system, can solve the problems of high cost and low system reliability, and achieve the effects of stable driving, improving working conditions and simplifying installation.
Active Publication Date: 2016-06-22
CHANGFENG GROUP
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Problems solved by technology
The problems of this technology of separately setting the vacuum pump are: 1. The reliability of the system is low; 2. The cost of adding an extra motor to drive the vacuum pump is high
Method used
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Embodiment Construction
[0020] The present invention takes a vane pump as an embodiment. Although the working structure of other vacuum pumps described in this specification is slightly different, it does not affect the principle description of the present invention.
[0021] see figure 1 , the transmission box 6 in the illustration is the transmission device of the electric vehicle, one end of the input shaft 62 of the transmission box is connected with the drive motor 7, and a gear transmission mechanism is set in the cavity 63 of the transmission box to connect with the output shaft 61 of the transmission box to realize power output to Wheels, the wheels are braked through the wheel brake cylinder 1 connected to the brake system master cylinder 2, and the other end of the transmission box input shaft 62 is connected to the vacuum pump 4 to realize the integrated connection of the vacuum pump and realize the power drive of the vacuum pump.
[0022] The pipeline connection of concrete vacuum pump 4 ...
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The invention discloses a transmission box for a vehicle with an integrated mechanical vacuum pump. The vacuum pump is connected with one of the transmission shafts of the transmission box to realize the power drive of the vacuum pump; Provide vacuum boosting for the vehicle braking system; the inner cavity of the vacuum pump introduces lubricating oil from the inner cavity of the transmission box, and its air outlet is connected to the lubricating oil pipe of the transmission box for spraying and lubricating the lubricating oil of the transmission box. The vacuum pump has four one-way valves, so that the vacuum pump will work normally when it rotates forward or reversely, and the gas and lubricating oil in the air storage tank of the brake system will be drawn out from the air inlet at the same time, and they will be pumped from the air outlet. out. The invention simplifies the installation of the vacuum pump, has stable driving, reduces the production cost of the vehicle, provides vacuum boosting for the braking system of the vehicle and at the same time improves the lubrication efficiency of the transmission box through the vacuum pump.
Description
technical field [0001] The invention relates to the technical field of automobile transmission systems, in particular to a vehicle transmission box integrating a mechanical vacuum pump. Background technique [0002] At present, the most commonly used vehicle brake is vacuum booster braking. The technical solution adopted by conventional fuel vehicles is to introduce vacuum from the manifold throttle of the engine, or use a vacuum pump driven externally at the tail of the generator to provide vacuum as brake booster. With the popularization of new energy, electric vehicles have increasingly become the key research direction of various automobile manufacturers, and electric vehicles do not have the intake system of fuel vehicles, so their braking scheme uses an independent motor-driven vacuum pump to provide vacuum source. The problems in the technology of separately setting the vacuum pump are: 1. The reliability of the system is low; 2. The cost of adding an extra motor to ...
Claims
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IPC IPC(8): B60T17/02F16H57/04
Inventor 张华平胡哓岚姜高松黄伟
Owner CHANGFENG GROUP