CN212535970U

CN212535970U - Coaxial oil-free ultrahigh pressure compressor

Info

Publication number: CN212535970U
Application number: CN202020558853.8U
Authority: CN
Inventors: 张志飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-02-12
Anticipated expiration: 2030-04-16

Abstract

A coaxial oil-free ultrahigh pressure compressor comprises a motor, wherein an eccentric wheel is connected to a shaft of the motor, a second pin shaft is connected to the eccentric position of the eccentric wheel, a connecting rod is connected to the second pin, a first pin shaft is connected to the other end of the connecting rod, a concentric piston is connected to the first pin shaft, a second support ring and the concentric piston are arranged in a concentric cylinder sleeve, concentric cylinder glands are arranged at the tops of the concentric cylinder sleeve and the concentric piston, a high pressure cylinder sleeve is connected to the upper portion of the concentric cylinder gland, and a second one-way valve is arranged at the lower portion; a high-pressure push rod is arranged in the high-pressure cylinder sleeve, a high-pressure piston is connected below the high-pressure push rod, a low-pressure piston is connected above the high-pressure push rod, and low-pressure cylinder covers are arranged at the tops of the low-pressure piston and the low-pressure cylinder sleeve; and a valve plate is arranged in the low-pressure cylinder cover. The utility model discloses compact structure has reduced the compressor volume greatly, and installation, dismantlement, maintenance are very convenient, low in manufacturing cost, long service life, aerify efficiently moreover.

Description

Coaxial oil-free ultrahigh pressure compressor

Technical Field

The utility model relates to an air compressor technical field especially relates to a coaxial no oil superhigh pressure compressor.

Background

The ultrahigh pressure compressor belongs to air compressor for dive, fire control and outdoor exercises, and the ultrahigh pressure compressor motor among the prior art is two play axle constructions, has all installed the eccentric wheel on two axles, is connected with the cylinder on the eccentric wheel, is connected with low pressure cylinder on one side, and high pressure cylinder is connected to the another side, and the eccentric wheel drives low pressure cylinder and high pressure cylinder work, compresses the inspiratory low pressure air body and produces high-pressure gas. The technical structure is complex, the volume is large, the manufacturing cost is high, the maintenance difficulty is large, the service life is short, and the inflation efficiency is low.

Disclosure of Invention

The utility model aims at solving the technical problem and providing a coaxial oil-free ultrahigh pressure compressor which has compact and reasonable structure, low manufacturing cost, convenient maintenance, long service life and high inflation efficiency.

In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a coaxial no oil superhigh pressure compressor, includes motor cabinet, motor, its characterized in that: the shaft of the motor is connected with an eccentric wheel through a bearing, the eccentric part of the eccentric wheel is connected with a second pin shaft through a bearing, the second pin shaft is connected with a connecting rod through a bearing, the other end of the connecting rod is connected with a first pin shaft through a bearing, the first pin shaft is connected with a concentric piston through a bearing, the outer ring of the concentric piston is provided with two third support rings, and the third support rings and the concentric piston are arranged in a concentric cylinder sleeve; the top parts of the concentric cylinder sleeve and the concentric piston are provided with concentric cylinder glands; a low-pressure cylinder sleeve is arranged on the concentric cylinder gland, and a low-pressure cylinder cover is arranged at the top of the low-pressure cylinder sleeve; the top of the concentric piston is connected with a plurality of connecting rods through threads, and the connecting rods penetrate through the concentric cylinder gland and are connected with the low-pressure piston; a choke plug is arranged at the gland part of the concentric cylinder, a second one-way valve is arranged above the choke plug, the upper part of the gland of the concentric cylinder is connected with a high-pressure cylinder sleeve through threads, and an O-shaped ring is arranged at the joint of the outer ring at the bottom of the high-pressure cylinder sleeve and the gland of the concentric cylinder; the low-pressure piston is connected with a high-pressure push rod through threads, the outer ring of the high-pressure push rod is arranged in a high-pressure cylinder sleeve, a second support ring is clamped between the high-pressure push rod and the high-pressure cylinder sleeve, a first check valve is arranged in a lower end hole of the high-pressure push rod, the lower end of the high-pressure push rod is connected with a piston copper head through threads, the high-pressure piston is sleeved on the high-pressure push rod above the piston copper head, and a first support ring is clamped in a groove in the. And a valve block is arranged in the low-pressure cylinder cover, and a separation blade is arranged between the valve block and the low-pressure cylinder cover.

Preferably: the high-pressure piston comprises a high-pressure piston ring and a plurality of first O-shaped rings, and the plurality of first O-shaped rings are tightly arranged between the high-pressure push rod and the high-pressure piston ring.

Preferably: and the low-pressure cylinder cover is provided with an air inlet.

Preferably: and a high-pressure air outlet is arranged on the concentric cylinder gland.

Preferably: the concentric cylinder gland, the concentric cylinder sleeve and the motor base are fastened together through connecting screws.

Preferably: the low-pressure cylinder cover, the low-pressure cylinder sleeve and the concentric cylinder gland are connected through screws.

Preferably: the second one-way valve is made of the following materials: polyether ether ketone; the first one-way valve is made of the following materials: silicon nitride ceramic balls.

Preferably: the high-pressure piston ring is made of the following materials: polytetrafluoroethylene.

The utility model discloses compare with traditional structure: the motor is a single output shaft, only one eccentric wheel is needed, the low-pressure cylinder and the high-pressure cylinder are combined into a whole, coaxial compression is realized by low-pressure compression and high-pressure compression above the eccentric wheel, the structure is compact and reasonable, the size of the compressor is greatly reduced, the installation, the disassembly and the maintenance are very convenient, the low-pressure piston and the high-pressure piston can be replaced by only disassembling four screws on the low-pressure cylinder cover, the manufacturing cost is low, the service life is long, and the inflation efficiency is high.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of B of FIG. 3;

FIG. 5 is an enlarged view taken at C of FIG. 3;

in the figure: 1. the novel hydraulic cylinder comprises a motor base, 2. a motor, 3. a concentric cylinder sleeve, 4. a concentric cylinder gland, 4-1. a high-pressure air outlet, 5. a connecting screw, 6. a low-pressure cylinder sleeve, 7. a low-pressure cylinder cover, 9. a connecting rod, 10. a first pin shaft, 11. a choke plug, 12. a connecting rod, 14. a first support ring, 15. a first O-shaped ring, 16. a high-pressure piston ring, 17. a second support ring, 18. a low-pressure piston lower cover, 19. a second O-shaped ring, 20. a valve plate, 21, a baffle plate, 22. a low-pressure piston upper cover, 23. a third O-shaped ring, 24. a low-pressure piston ring, 25. a high-pressure push rod, 26. a first check valve, 27. a piston copper head, 28. a screw, 29. a high-pressure cylinder sleeve, 30. a second check valve, 31. a third support ring, 32.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

In the figure: the utility model provides a coaxial no oil superhigh pressure compressor, includes motor cabinet 1, motor 2, its characterized in that: an eccentric wheel 34 is connected to a shaft of the motor 2 through a bearing, a second pin shaft 33 is connected to an eccentric position of the eccentric wheel 34 through a bearing, a connecting rod 9 is connected to the second pin shaft 33 through a bearing, the other end of the connecting rod 9 is connected with a first pin shaft 10 through a bearing, a concentric piston 32 is connected to the first pin shaft 10 through a bearing, two third supporting rings 31 are arranged on the outer ring of the concentric piston 32, and the third supporting rings 31 and the concentric piston 32 are arranged in the concentric cylinder sleeve 3; the top parts of the concentric cylinder sleeve 3 and the concentric piston 32 are provided with a concentric cylinder gland 4; a low-pressure cylinder sleeve 6 is arranged on the concentric cylinder gland 4, and a low-pressure cylinder cover 7 is arranged at the top of the low-pressure cylinder sleeve 6; the top of the concentric piston 32 is connected with a plurality of connecting rods 12 through threads, and the connecting rods 12 penetrate through the concentric cylinder gland 4 to be connected with the low-pressure piston; a choke plug 11 is arranged at the lower part of the concentric cylinder gland 4, a second one-way valve 30 is arranged above the choke plug 11, a high-pressure cylinder sleeve 29 is connected to the upper part of the concentric cylinder gland 4 through threads, and an O-shaped ring is arranged at the joint of the outer ring at the bottom of the high-pressure cylinder sleeve 29 and the concentric cylinder gland 4; the low-pressure piston is connected with a high-pressure push rod 25 through threads, the outer ring of the high-pressure push rod 25 is arranged in a high-pressure cylinder sleeve 29, a second support ring 17 is clamped between the high-pressure push rod 25 and the high-pressure cylinder sleeve 29, a first check valve 26 is arranged in a lower end hole of the high-pressure push rod 25, the lower end of the high-pressure push rod 25 is connected with a piston copper head 27 through threads, the high-pressure piston is sleeved on the high-pressure push rod 25 above the piston copper head 27, and a first support ring 14 is clamped in a groove in the lower. And a valve plate 20 is arranged in the low-pressure cylinder cover 7, and a baffle 21 is arranged between the valve plate 20 and the low-pressure cylinder cover 7. The high-pressure piston comprises a high-pressure piston ring 16 and a plurality of first O-shaped rings 15, and the plurality of first O-shaped rings 15 are tightly arranged between the high-pressure push rod 25 and the high-pressure piston ring 16. And an air inlet is formed in the low-pressure cylinder cover 7. The concentric cylinder gland 4 is provided with a high-pressure air outlet 4-1. The concentric cylinder gland 4, the concentric cylinder sleeve 3 and the motor base 1 are fastened together through a connecting screw 5. And the low-pressure cylinder cover 7 and the low-pressure cylinder sleeve 6 are connected with the concentric cylinder gland 4 through screws. The second check valve 30 is made of the following materials: polyether ether ketone; the first check valve 26 is made of the following materials: silicon nitride ceramic balls. The high-pressure piston ring 16 is made of the following materials: polytetrafluoroethylene.

According to the working principle, the motor drives an eccentric wheel 34, the eccentric wheel drives a concentric cylinder 32 to do vertical linear motion through a connecting rod 9, and the concentric cylinder drives a low-pressure piston and a high-pressure piston to do vertical linear motion through a plurality of connecting columns. When the low-pressure piston moves downwards, the inner valve plate 20 of the low-pressure cylinder cover 7 is opened to admit air, meanwhile, the inner valve plate 20 of the low-pressure piston is closed, the first one-way valve in the high-pressure piston is closed, and air is compressed in the high-pressure chamber; when the low-pressure piston moves upwards, the inner valve plate 20 of the low-pressure cylinder cover 7 is closed, the inner valve plate 20 of the low-pressure piston and the first one-way valve in the high-pressure piston are opened simultaneously, so that gas which originally enters the low-pressure gas chamber is compressed to the high-pressure gas chamber, and when the pressure of the gas reaches, the second one-way valve 30 is opened. The compressed gas circularly and repeatedly enters the gas storage cylinder from the high-pressure gas outlet 4-1.

In specific implementation, the first O-rings 15 are tightly arranged between the high-pressure push rod 25 and the high-pressure piston ring 16. When the high-pressure piston ring is worn, the first O-shaped ring inside supports the high-pressure piston ring outwards through elasticity, so that the high-pressure piston ring is in close contact with the high-pressure cylinder sleeve 29, the service life of the high-pressure piston is prolonged, and the service life of the high-pressure cylinder sleeve 29 is prolonged because the high-pressure piston ring is made of some materials. The valve plate 20 is arranged in the low-pressure cylinder cover 7, the blocking piece 21 is arranged between the valve plate 20 and the low-pressure cylinder cover 7, and the service life of the valve plate in the low-pressure cylinder cover is prolonged. The utility model discloses a second grade pressure boost, the high-pressure gas pressure of cyclic compression output is 0~40Mpa, effectively promotes the inflation speed for dive, fire control and outdoor exercises need not fixed power supply, use the car on the 12V power can carry out small-size gas cylinder and aerify, and is particularly portable, especially suitable diver, the outdoor use of fireman.

The above embodiments of the present invention are only examples for clearly illustrating the present invention, but not for limiting the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a coaxial no oil superhigh pressure compressor, includes motor cabinet (1), motor (2), its characterized in that: an eccentric wheel (34) is connected to a shaft of the motor (2) through a bearing, a second pin shaft (33) is connected to the eccentric position of the eccentric wheel (34) through a bearing, a connecting rod (9) is connected to the second pin shaft (33) through a bearing, the other end of the connecting rod (9) is connected with a first pin shaft (10) through a bearing, a concentric piston (32) is connected to the first pin shaft (10) through a bearing, two third supporting rings (31) are arranged on the outer ring of the concentric piston (32), and the third supporting rings (31) and the concentric piston (32) are arranged in the concentric cylinder sleeve (3); the top parts of the concentric cylinder sleeve (3) and the concentric piston (32) are provided with a concentric cylinder gland (4); a low-pressure cylinder sleeve (6) is arranged on the concentric cylinder gland (4), and a low-pressure cylinder cover (7) is arranged at the top of the low-pressure cylinder sleeve (6); the top of the concentric piston (32) is connected with a plurality of connecting rods (12) through threads, and the connecting rods (12) penetrate through the concentric cylinder gland (4) to be connected with the low-pressure piston; a choke plug (11) is arranged at the lower part of the concentric cylinder gland (4), a second one-way valve (30) is arranged above the choke plug (11), the upper part of the concentric cylinder gland (4) is connected with a high-pressure cylinder sleeve (29) through threads, and an O-shaped ring is arranged at the joint of the outer ring at the bottom of the high-pressure cylinder sleeve (29) and the concentric cylinder gland (4); the high-pressure piston is characterized in that a high-pressure push rod (25) is connected with the low-pressure piston through threads, the outer ring of the high-pressure push rod (25) is arranged in a high-pressure cylinder sleeve (29), a second support ring (17) is clamped between the upper portion of the high-pressure push rod (25) and the high-pressure cylinder sleeve (29), a first check valve (26) is arranged in a lower end hole of the high-pressure push rod (25), the lower end of the high-pressure push rod (25) is connected with a piston copper head (27) through threads, the high-pressure piston is sleeved on the high-pressure push rod (25) above the piston copper head (27), a first support ring (14) is clamped in a groove in the lower portion of the outer ring of the piston copper head (27), a valve block.

2. The coaxial oil-free ultrahigh pressure compressor according to claim 1, characterized in that: the high-pressure piston comprises a high-pressure piston ring (16) and a plurality of first O-shaped rings (15), and the plurality of first O-shaped rings (15) are tightly arranged between the high-pressure push rod (25) and the high-pressure piston ring (16).

3. The coaxial oil-free ultrahigh pressure compressor according to claim 1, characterized in that: and the low-pressure cylinder cover (7) is provided with an air inlet.

4. The coaxial oil-free ultrahigh pressure compressor according to claim 1, characterized in that: and a high-pressure air outlet (4-1) is arranged on the concentric cylinder gland (4).

5. A coaxial oil-free ultra high pressure compressor according to claim 1 or 4, characterized in that: the concentric cylinder gland (4), the concentric cylinder sleeve (3) and the motor base (1) are fastened together through connecting screws (5).

6. The coaxial oil-free ultrahigh pressure compressor according to claim 1, characterized in that: the low-pressure cylinder cover (7) and the low-pressure cylinder sleeve (6) are connected with the concentric cylinder gland (4) through screws.

7. The coaxial oil-free ultrahigh pressure compressor according to claim 1, characterized in that: the second one-way valve (30) is made of the following materials: polyether ether ketone; the first one-way valve (26) is made of the following materials: silicon nitride ceramic balls.

8. A coaxial oil-free ultra high pressure compressor as claimed in claim 2, wherein: the high-pressure piston ring (16) is made of the following materials: polytetrafluoroethylene.