CN2436680Y

CN2436680Y - Air compressor without lubricant

Info

Publication number: CN2436680Y
Application number: CN 00224874
Authority: CN
Inventors: 陈建宗
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-24
Filing date: 2000-05-24
Publication date: 2001-06-27
Anticipated expiration: 2010-05-24

Abstract

The utility model relates to a complete oil-free air compressor, which uses the motive power positioned in the middle to achieve using one to drag three; the large and small heads of a connecting rod all use oil sealed bearings; a piston is a straight flow piston and adopt a semi-open type support ring; a ring-shaped air suction valve is installed on the piston and moves with the piston; an air exhaust valve adopts a plurality of single special-shaped tubular straight flow valves. Compared with the existing complete oil-free lubricating air compressor, the utility model has the advantages of low machine body temperature, compressed air produced which is in conformity with requirement, convenient assembly and maintenance, large air displacement, low specific power, etc.

Description

The full-oil-free lubrication air compressor

The utility model relates to a kind of full-oil-free lubrication air compressor, and it belongs to the reciprocation piston engine class that the opposed arrangement of relative main shaft is arranged and be in a cylinder on the plane.

Owing to need with pure compressed-air actuated industry more and more, the domestic and international also corresponding exploitation dynamics that strengthens the full-oil-free lubrication air compressor, and air displacement emerging completely without oily air compressor below 2 cubic metres/minute arranged, but still exist problems such as organism temperature height, wrist pin leakage of oil and assembling maintenance difficult, and can't obtain important breakthrough aspect the increase air displacement.

The purpose of this utility model just is being to overcome above-mentioned defective comprehensively, for society provides a kind of novel full-oil-free lubrication air compressor.

The full-oil-free lubrication air compressor contains fuselage 1, crankshaft 2, belt pulley 3, pair of links 4, pair of pistons 5, a pair of cylinder 6, also has corresponding ring-type Aspirating valves 7 and outlet valve 8, described belt pulley 3 is installed in the stage casing of crankshaft 2, and the symmetry center in the symmetry center in its longitudinal section and above-mentioned fuselage 1 longitudinal section coincides; Described connecting rod 4 its CONCENTRIC REDUCER all are equipped with the stuffing box bearing that contains high-temperature grease; Described piston 5 its supporting rings 52 are the semi-open type structure, and dispose ring-type Aspirating valves 7 on the cross framework 53 at piston 5 tops; Described outlet valve has even number, all is the tubular valves that include valve body 81, valve seat 82, valve block 83, retaining washer 84 and packing ring 85, and described valve body 81 is the cone-shaped structure of band screw in nearly exhaust end place.

Because the utility model aerodynamic force imports from the centre, and adopted with one and dragged last two fuselage split-type structural scheme, so the assembling of full machine and keep in repair all very convenient; The oil-containing stuffing box bearing that the connecting rod CONCENTRIC REDUCER is used both had been beneficial to clean compressed air, also possessed assembling simultaneously and keeped in repair advantage easily; Because adopted the scheme (promptly from the crankcase air inlet) of direct current type piston intake, added the supporting ring of piston and get semi-open type antifriction structure, thereby the temperature of full machine moving element is greatly reduced; The benefit that the ring-type Aspirating valves is installed on the piston is to increase flow area, improves air inflow; The purpose that outlet valve is designed to a plurality of special type monomer tubular valves is both can increase area of passage to improve air displacement, can reduce clearance volume again, reduces the specific power index.

In sum, the utility model not only preferably resolves the problems such as type temperature height, wrist pin leakage of oil and assembling maintenance difficult that existing full-oil-free lubrication air compressor exists, and has an advantage that increases air displacement, reduces the specific power index, really be that a new generation is low-cost, energy-saving new machine.

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is used structure of piston schematic representation of the utility model that the ring-type Aspirating valves is installed.

Accompanying drawing 3 is A-A sectional views of accompanying drawing 2.

Accompanying drawing 4 is structural representations of the used monomer outlet valve of the utility model.

Accompanying drawing 5 is B-B sectional views of accompanying drawing 4.

Among the figure, 1. fuselage, 2. crankshaft, 3. belt pulley, 4. connecting rod, 5. piston, 6. cylinder, 7. ring-type Aspirating valves, 8. outlet valve, 9. locating stud, 10.85. packing ring, 11. baffle plates, 12. right-angle baffles, 13. valve plates, 51. piston rings, 52. semi-open type supporting rings, the cross framework of 53. piston head, 81. valve bodies, 82. valve seats, 83. valve blocks, 84. retaining washers.

Claims

1, the full-oil-free lubrication air compressor contains fuselage (1), crankshaft (2), belt pulley (3), pair of links (4), pair of pistons (5), a pair of cylinder (6), also has corresponding ring-type Aspirating valves (7) and outlet valve (8), it is characterized in that:

A, described belt pulley (3) are installed in the stage casing of crankshaft (2), and the symmetry center in the symmetry center in its longitudinal section and above-mentioned fuselage (1) longitudinal section coincides;

B, its CONCENTRIC REDUCER of described connecting rod (4) all are equipped with the stuffing box bearing that contains high-temperature grease;

C, described piston (5), its supporting ring (52) is the semi-open type structure, and disposes ring-type Aspirating valves (7) on the cross framework (53) at piston (5) top;

D, described outlet valve (8) have even number, all are the tubular valves that include valve body (81), valve seat (82), valve block (83), retaining washer (84) and packing ring (85), and described valve body (81) is the cone-shaped structure of band screw in nearly exhaust end place.