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Oil-free piston type two-stage air compressor for vehicle

An oil piston and air compressor technology, applied in piston pumps, liquid variable capacity machinery, multi-stage pumps, etc., can solve problems such as difficulty in meeting high-pressure gas demand, oil pollution in the gas source, large balance vibration, etc., and achieve weight reduction. , Easy to install and arrange, reduce the effect of vibration

Pending Publication Date: 2019-04-12
ZHEJIANG RUILI AIR COMPRESSOR EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical defects existing in the prior art, the object of the present invention is to provide an oil-free piston type two-stage air compressor for vehicles, which solves the problem that most of the air compressors in the prior art are oil-containing air compressors, and the gas source is polluted by oil, without Oil and air compressors are mostly single-crank structures, which are difficult to balance and have large vibrations, high exhaust temperatures, and high power consumption. With the release of GB7258, it is difficult to meet the demand for high-pressure gas above 1MPa

Method used

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  • Oil-free piston type two-stage air compressor for vehicle

Examples

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Embodiment 1

[0043] Such as Figure 1-Figure 2 Shown, according to the vehicle oil-free piston type two-stage air compressor structural representation of the present invention.

[0044] An oil-free piston type two-stage air compressor for vehicles of the present invention comprises a motor 20, a motor main shaft 201, a crankshaft 13, a crankcase 14, a flywheel 17, a cylinder head 5, a piston cylinder 7 and a mounting bracket 18, and a piston cylinder 7 Located above the crankcase 14, the motor main shaft 201 directly drives the crankshaft 13 to rotate; the left and right opposite cranks of the crankshaft 13 are respectively provided with a high-pressure piston connecting rod assembly 9 and a low-pressure piston connecting rod assembly 10, so that the volume and weight of the whole machine It is greatly reduced, and this structure shortens the axial distance between the two connecting rods and the crankshaft support, so as to reduce the influence and harm of the first-order reciprocating mo...

Embodiment 2

[0073] Such as image 3 , 4 Shown, according to the vehicle oil-free piston type two-stage air compressor of the present invention figure 1 The structural representation of another preferred embodiment shown

[0074] In this embodiment, the high-pressure piston connecting rod assembly 9 includes a high-pressure piston, a high-pressure connecting rod, a high-pressure intake valve plate 3 and a high-pressure exhaust valve plate 4; the low-pressure piston connecting rod assembly 10 includes a low-pressure piston, a low-pressure connecting rod, Low-pressure intake valve slice 8 and low-pressure exhaust valve slice 6.

[0075] In this embodiment, the low-pressure piston connecting rod assembly 10 is arranged outside the high-pressure piston connecting rod assembly 9; when the low-pressure piston connecting rod assembly 10 is arranged outside the high-pressure piston connecting rod assembly 9, the crankshaft 13 adopts an integrated The maintenance-free double-row rolling bearing ...

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Abstract

The invention relates to an oil-free piston type two-stage air compressor for a vehicle. The oil-free piston type two-stage air compressor for the vehicle comprises a motor (20), a motor main shaft (201), a crankshaft (13), a crankshaft box (14), a flywheel (17), a cylinder cover (5), a piston cylinder (7) and an installing supporting frame (18); the piston cylinder (7) is located above the crankshaft box (14), and the motor main shaft (201) drives the crankshaft (13) to rotate in a direct connection mode; a high-pressure piston connecting rod assembly (9) and a low-pressure piston connectingrod assembly (10) are correspondingly arranged on cranks oppositely arranged on the left and right sides of the crankshaft (13), the size and the weight of the whole machine are reduced greatly, the axial distance between two connecting rods and a crankshaft support is reduced through the structure, and thus the influence and the harm of a first order reciprocating inertia moment and a rotating inertia moment are reduced, and meanwhile the risk of crankshaft distortion or fracture is reduced greatly; and the flywheel (17) is fixed to the motor main shaft (201), the rotational inertia of the system is increased, the vibration is reduced, the electric current is reduced, and the load on the motor is reduced.

Description

technical field [0001] The invention relates to air compression equipment for vehicles, in particular to an oil-free piston type two-stage air compressor for vehicles. Background technique [0002] Automotive air compressors are mainly used to provide necessary air sources for automotive braking technology, suspension systems, door opening and closing, and auxiliary pneumatic devices. At present, the commonly used vehicle-mounted air compressors mainly include vane type, scroll type, and piston type air compressors. Most of them are oil-filled air compressors, and the air source is polluted by oil. Difficult to balance Large vibration, high exhaust temperature, high power consumption. With the release of GB7258, it is difficult to meet the demand for high-pressure gas above 1MPa. [0003] For example, the Chinese invention patent with the publication number CN101614200A discloses an oil-free compressor for locomotives, including motors, cylinders, piston rod assemblies, air...

Claims

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Application Information

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IPC IPC(8): F04B25/00F04B35/04F04B39/00
CPCF04B25/005F04B35/04F04B39/0022F04B39/0027
Inventor 朱彬李传武钟周乐周胜博
Owner ZHEJIANG RUILI AIR COMPRESSOR EQUIP CO LTD