CN210949024U

CN210949024U - Energy-saving novel oil-free self-lubricating piston type air compressor

Info

Publication number: CN210949024U
Application number: CN201921941789.5U
Authority: CN
Inventors: 黄定川
Original assignee: Hangzhou Hengyue Mechanical And Electrical Manufacturing Co ltd
Current assignee: ZHEJIANG DINGCHUAN MECHANICAL & ELECTRICAL MANUFACTURE CO.,LTD.
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-07
Anticipated expiration: 2029-11-12

Abstract

The utility model provides an energy-conserving novel do not have oily self-lubricating piston air compressor entirely, including motor and crankcase, the crankcase sets up epaxial at the motor, the protecgulum sets up anterior at the crankcase, the cylinder subassembly sets up on the crankcase, still include piston assembly, piston assembly includes piston assembly, bearing and piston, the connecting rod head end is provided with the shaft hole, the round block cover is established in the bearing, the bearing housing is established in the shaft hole of connecting rod, the edge of round block is passed to the axle of motor, be provided with the piston bore on the piston, be provided with the piston tip in the piston bore, the connecting rod tail end is articulated with the piston tip in stretching into the piston bore, the piston stretches into in the cylinder subassembly. The utility model discloses energy-conserving novel no oil self-lubricating piston air compressor three jar equipartitions entirely, no oil design, air 100% does not contain oil, can adapt to heavy dust environment, does not pick operational environment.

Description

Energy-saving novel oil-free self-lubricating piston type air compressor

Technical Field

The utility model relates to an air compressor, concretely relates to energy-conserving novel complete no oil self-lubricating piston air compressor.

Background

The inside oil lubrication that has of ordinary piston air compressor machine, the inside oiliness of the gas that provides, the prior art can't be clear away completely, and needs increase aftertreatment equipment to need to change the filter core of deoiling equipment in certain period, the consumption of oil and use maintenance cost are great, and the gas that provides can make the system original paper pollution produce the trouble, has hydrocarbon, exists the explosion risk. With the enhancement of the current environmental awareness, industrial departments such as textile, food, medicine, chemical industry, military industry and the like have higher and higher requirements on a generated pneumatic element air source, have higher and higher requirements on clean and oil-free compressed air, and have come into force with the full-oil-free piston type air compressor.

Accordingly, there is a need for improvements in the art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an energy-conserving novel complete no oil self-lubricating piston air compressor of efficient.

In order to solve the technical problem, the utility model provides an energy-saving novel full oil-free self-lubricating piston type air compressor, which comprises a motor and a crankcase, wherein the crankcase is arranged on the shaft of the motor, a front cover is arranged at the front part of the crankcase, a cylinder assembly is arranged on the crankcase, and the energy-saving novel full oil-free self-lubricating piston type air compressor also comprises a piston assembly;

the piston assembly comprises a piston assembly and a piston, wherein the piston assembly comprises a connecting rod, a bearing and a piston;

the head end of the connecting rod is provided with a shaft hole, the round sliding block is sleeved in the bearing, and the bearing is sleeved in the shaft hole of the connecting rod;

the shaft of the motor penetrates through the edge of the round sliding block;

the piston is provided with a piston hole, a piston tip is arranged in the piston hole, and the tail end of the connecting rod extends into the piston hole and is hinged with the piston tip; the piston extends into the cylinder assembly.

As right the utility model discloses energy-conserving novel oil free self-lubricating piston air compressor's improvement entirely:

the air cylinder component sequentially comprises a cylinder cover, a first sealing ring, a valve plate assembly, a second sealing ring, a sealing ring and an air cylinder;

the piston extends into the cylinder.

As right the utility model discloses energy-conserving novel oil free self-lubricating piston air compressor's further improvement:

the cylinder comprises a cylinder body, a copper sleeve and an exhaust joint;

the copper sleeve is arranged on the inner side of the cylinder body, and the exhaust joint is connected with the outer surface of the cylinder body;

the piston extends into the copper sleeve.

a circumferential hollow structure is arranged on the outer side of the joint of the cylinder body and the copper sleeve to form a gap; and the exhaust joint is connected with the cylinder body and the gap of the copper sleeve.

the number of the cylinder assemblies and the number of the piston assemblies are three and are circumferentially and uniformly arranged.

the cylinder cover is covered on the valve plate assembly, and the cylinder cover and the valve plate assembly form an exhaust cavity and an air inlet cavity which are separated;

the valve plate assembly comprises an air inlet valve plate, a valve plate, an air outlet valve plate and a pressure plate,

the valve plate is provided with an exhaust channel and an air inlet channel, and the exhaust channel comprises an exhaust channel I and an exhaust channel II; one end cover of the exhaust channel is provided with an exhaust valve plate; an end cover of the air inlet channel is provided with an air inlet valve plate;

two ends of the air inlet channel are respectively communicated with the cylinder body and the air inlet cavity, and the air inlet cavity is communicated with an air inlet on the cylinder cover; and two ends of the first exhaust channel are respectively communicated with the cylinder body and the exhaust cavity, and the exhaust cavity is communicated with the exhaust channel of the cylinder body through the second exhaust channel.

The utility model discloses energy-conserving novel full oilless self-lubricating piston air compressor's technical advantage does:

1. the design is completely oilless, and the air contains 100% of no oil;

2. the three jars are uniformly distributed, and the appearance is scientific and attractive;

3. the dust remover can adapt to a heavy dust environment, and does not select a working environment;

4. the efficiency is stable, and the gas production rate is stable;

5. the special air cylinder and the oil-free piston ring are used, so that the relative friction coefficient is small, and the service life is long;

6. the air compressor can normally work at the natural environment temperature of minus 40-60 ℃;

7. the structure is simple, the operation cost is low, the daily maintenance amount is small, the maintenance process is simple, and the small repair and the major repair can be carried out on site;

8. the energy consumption is superior to the first-level energy consumption, and the electric energy saving effect is obvious;

9. the whole air compressor is an oversized heat exchanger, so that the stability in a high-temperature environment is ensured;

10. the air compressor is directly connected, so that the minimum loss of transmission efficiency is ensured;

11. the whole machine base is provided with the insulating soft rubber shock pad, so that the influence of vibration on the air compressor is reduced, and the high voltage of the air compressor cannot be conducted to other metal parts.

Drawings

The following describes the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the novel energy-saving oil-free self-lubricating piston type air compressor of the present invention;

FIG. 2 is a schematic structural view of the valve plate assembly 6 of FIG. 1;

FIG. 3 is a schematic structural view of the cylinder 9 of FIG. 1;

fig. 4 is a schematic structural diagram of the circular slider 12, the bearing 11.2 and the connecting rod 11.1 in fig. 1;

fig. 5 is a schematic structural diagram of the circular slider 12, the bearing 11.2, the connecting rod 11.1 and the piston 11.3 in fig. 1;

fig. 6 is a schematic structural diagram of the circular slider 12, the bearing 11.2, the connecting rod 11.1, the piston 11.3 and the cylinder 9 in fig. 1.

1. A motor; 2. a vibration damping block; 3. a base plate; 4. a cylinder cover; 5. a first sealing ring; 6. a valve plate assembly; 7. a second sealing ring; 8. a third sealing ring; 9. a cylinder; 10. a cylinder assembly; 11. a piston assembly; 11.1 connecting rod; 11.2 bearings; 11.3 a piston; 12. a circular slider; 13. a crankcase; 14. a front cover; 15. a fan housing support; 16. a fan; 17. an annular exhaust pipe; 18. a fan cover.

61. A bolt; 62. an air inlet valve plate; 63. a valve plate; 64. an exhaust valve plate 64; 65 pressing plates (valve plate lift limiters); 66. self-locking nut

91. An aluminum cylinder body; 92. a copper sleeve; 93. an exhaust joint.

Detailed Description

The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.

Embodiment 1, energy-saving novel oil-free self-lubricating piston type air compressor, as shown in fig. 1-3, comprises a motor 1 and a crankcase 13.

The crankcase 13 is fixedly connected to the shaft of the motor 1 through bolts, the three piston assemblies 11 are sleeved on the shaft of the motor 1 through flat wire holes of the three round sliders 12, the front cover 14 is fixed at the front part of the crankcase 13 and is locked and fixed with assemblies inside the crankcase 13 through the shaft of the fan 16, and the air cylinder assembly 10 is fixed on the crankcase 13 through bolts. The three cylinder assemblies 10 are uniformly distributed along the circumferential direction at an included angle of 120 degrees in an axial displacement manner.

The edge (non-circle center) position of the round sliding block 12 is provided with a flat wire hole for the shaft of the motor 1 to pass through, namely the edge of the round sliding block 12 for the shaft of the motor 1 to pass through, and the round sliding block 12 can be driven to rotate.

The piston assembly 11 comprises a connecting rod 11.1, a bearing 11.2 and a piston 11.3.

The head end of the connecting rod 11.1 is provided with a shaft hole 11.11, the round sliding block 12 is sleeved in the bearing 11.2, the bearing 11.2 is sleeved in the shaft hole 11.11 of the connecting rod 11.1, and the tail end of the connecting rod 11.1 extends into the piston 11.3.

The piston 11.3 extends into the cylinder 9, a piston hole 11.4 is arranged on the piston 11.3, a piston tip 11.5 is transversely arranged in the piston hole 11.4, and the tail end of the connecting rod 11.1 extends into the piston hole 11.4 and is hinged with the piston tip 11.5.

When the shaft of the motor 1 rotates, the flat wire of the shaft of the motor 1 drives the circular slider 12 to eccentrically and circumferentially rotate, the circular slider 12 drives the bearing 11.2 to rotate in the inner hole of the bearing 11.2 of the connecting rod 11.1 (the inner holes of the circular slider 12 and the bearing 11.2 are in interference fit and do not move relatively to each other), and the bearing 11.2 drives the piston 11.3 to reciprocate in the cylinder 9 through the connecting rod 11.1 (the bearing 11.2 is movably connected with the shaft hole 11.11 of the connecting rod 11.1, and the bearing 11.2 can rotate in the shaft hole 11.11).

The air cylinder component 10 comprises a cylinder cover 4, a first sealing ring 5, a valve plate assembly 6, a second sealing ring 7, a third sealing ring 8 and an air cylinder 9. The valve plate assembly 6 is installed between the cylinder cover 4 and the cylinder 9, a second sealing ring 7 and a second sealing ring 8 are arranged between the valve plate assembly 6 and the cylinder 9, the cylinder cover 4 covers the valve plate assembly 6 to form a separated exhaust cavity and an air inlet cavity, and a first sealing ring 5 is arranged on the periphery of the exhaust cavity and used for sealing.

The valve plate assembly 6 comprises an air inlet valve plate 62, a valve plate 63, an air outlet valve plate 64 and a pressure plate 65 which are sequentially overlapped through a bolt 61, and a nut 66 for aligning the center is locked and fixed.

The valve plate 63 is made of aluminum, the surface roughness reaches 0.2 by adopting a turning and milling process, the existing high-heat-conductivity aluminum material is used, the good heat dissipation performance and the good roughness and flatness are realized, and the good sealing performance is ensured by the good matching of the valve plates (the air inlet valve plate 62 and the air outlet valve plate 64). The pressure plate 65 is provided with arc angles around, so that the service life of the valve plate is prolonged, more energy is saved, and noise is reduced. The valve plate 63 is provided with an exhaust passage and an intake passage 68, the exhaust passage comprises a first exhaust passage 67 and a second exhaust passage 69, one end of the first exhaust passage 67 is provided with an exhaust valve plate 64, and one end of the intake passage 68 is provided with an intake valve plate 62. The two ends of the air inlet channel 68 are respectively communicated with the cylinder body 91 and the air inlet cavity, the air inlet cavity is communicated with an air inlet on the cylinder cover 4, and the two ends of the first air outlet channel 67 are respectively communicated with the cylinder body 91 and the air outlet cavity. The exhaust cavity is communicated with an exhaust channel of the cylinder 91 through the second exhaust channel 69.

The first sealing ring 5 is positioned on an outer ring groove of the exhaust valve plate 64 on the upper surface of the valve plate 63, and the first sealing ring 5 is contacted with the upper cylinder cover 4 to press the sealed exhaust cavity.

The second sealing ring 7 is positioned on an outer ring groove of the air inlet valve plate 62 on the lower surface of the valve plate 63, and the second sealing ring 7 is contacted with the upper surface of the lower air cylinder 9 and is pressed to seal a cavity between a cylinder sleeve of the air cylinder 9 and the valve plate 63.

And a third sealing ring 8 is positioned in a ring groove on the upper part of the cylinder 9 close to the exhaust pipe side, and the third sealing ring 8 is in contact with the outer ring of the first exhaust channel 67 of the valve plate 63 to seal the second exhaust channel 69 of the valve plate 63.

The annular exhaust pipe 17 is connected to an exhaust joint 93 for connecting exhaust gases of the three cylinders 9 together and exhausting them (corresponding to an exhaust manifold), and a fan cover 18 is provided over the fan 16.

The cylinder 9 includes a cylinder block 91, a copper bush 92, and an exhaust joint 93.

Copper sheathing 92 directly casts inside aluminium system's cylinder body 91, and cylinder body 91 and copper sheathing 92 cast back integral processing together, are provided with circumference hollow out construction between copper sheathing 92 and the cylinder body 91, form the space, the heat dissipation of being convenient for, noise reduction. The gap between the copper bush 92 and the cylinder block 91 serves as an exhaust passage of the cylinder block 91. The cylinder body 91 is communicated with the exhaust cavity through the first exhaust channel 67, and a gap between the copper sleeve 92 and the cylinder body 91 is communicated with the exhaust cavity through the second exhaust channel 69. An exhaust joint 93 is screwed to the left side of the cylinder 91 and communicates with the gap between the copper bush 92 and the cylinder 91 for exhausting.

The piston 11.3 extends into the copper sleeve 92 to reciprocate up and down, and the inner wall of the copper sleeve 92 is matched with an oil-free piston ring (the piston 11.3) to ensure good air tightness and wear resistance and prolong the service life.

Motor 1 passes through damping piece 2 and sets up on bottom plate 3, and bottom plate 3 is insulating soft rubber shock pad, both reduces the influence of vibrations to the air compressor machine and makes the high-tension electricity of air compressor machine (voltage is 380V in the embodiment) can not conduct to other metal parts again.

The utility model discloses a working process does:

and (6) circulating. The motor 1 is electrified to operate, the flat wire long shaft of the motor 1 drives the flat wire hole close to the outer side of the eccentric circular sliding block 12, so that the eccentric circular sliding block 12 rotates, the circular sliding block 12 drives the connecting rod 11.1 to rotate, the upper part of the connecting rod 11.1 is connected with the piston 11.3, and at the moment, the circular motion of the rotating motor shaft is converted into the reciprocating motion of the piston 11.3 by the circular sliding block 12. When the piston 11.3 moves downwards, the size and the volume of the cavity in the cylinder 91 are increased, and the pressure is reduced; when the pressure is reduced to be less than the pressure of the air inlet cavity (namely less than the atmospheric pressure), the pressure in the air inlet cavity jacks an air inlet valve plate 62 of the valve plate assembly 6, air enters the cylinder body 91 from an air inlet on the cylinder cover 4 through the air inlet cavity via the air inlet channel 68, and along with the continuous downward movement of the piston 11.3, the air continues to enter the cylinder body 91 until the piston 11.3 moves downward to the bottom dead center (the air suction process is finished). When the piston moves to the bottom dead center, the air inlet valve plate 62 is closed, then the piston 11.3 starts to move upwards, the size of the cavity in the cylinder body 91 starts to be gradually reduced, air is compressed, pressure starts to rise, when the pressure is larger than the pressure at the rear part of the air outlet valve plate 64 of the valve plate assembly 6, the air outlet valve plate 64 is pushed open, and the air passes through the first air outlet channel 67, the second air outlet channel 69 and the first air outlet channel 67 in sequence from the cylinder body 91 and then is exhausted from the air outlet joint 93 through the gap between the copper sleeve 92 and the cylinder body 91; the piston 11.3 continues to move upwards, the air is continuously discharged out of the cylinder 91 until the piston 11.3 moves upwards to the upper dead point, the exhaust valve plate 64 is closed, the piston 11.3 starts to move downwards, the volume of the compressed air remained in the clearance volume of the cylinder 91 gradually expands and increases, the pressure starts to decrease, and when the pressure is slightly lower than the atmospheric pressure, the air starts to be sucked, and the next reciprocating operation is continuously carried out.

Finally, it is also noted that the above-mentioned list is only a few specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims

1. Energy-conserving novel oil-free self-lubricating piston air compressor entirely, including motor (1) and crankcase (13), crankcase (13) set up epaxial at motor (1), and protecgulum (14) set up in crankcase (13) front portion, and cylinder assembly (10) set up on crankcase (13), its characterized in that: further comprising a piston assembly (11);

the piston assembly (11) comprises a piston assembly (11) comprising a connecting rod (11.1), a bearing (11.2) and a piston (11.3);

the head end of the connecting rod (11.1) is provided with a shaft hole (11.11), the round sliding block (12) is sleeved in the bearing (11.2), and the bearing (11.2) is sleeved in the shaft hole (11.11) of the connecting rod (11.1);

the shaft of the motor (1) penetrates through the edge of the round sliding block (12);

a piston hole (11.4) is formed in the piston (11.3), a piston tip (11.5) is arranged in the piston hole (11.4), and the tail end of the connecting rod (11.1) extends into the piston hole (11.4) and is hinged with the piston tip (11.5); the piston (11.3) protrudes into the cylinder assembly (10).

2. The energy-saving novel oil-free self-lubricating piston type air compressor as claimed in claim 1, characterized in that:

the air cylinder assembly (10) sequentially comprises a cylinder cover (4), a first sealing ring (5), a valve plate assembly (6), a second sealing ring (7), a sealing ring (8) and an air cylinder (9);

the piston (11.3) extends into the cylinder (9).

3. The energy-saving novel oil-free self-lubricating piston type air compressor as claimed in claim 2, wherein:

the air cylinder (9) comprises a cylinder body (91), a copper sleeve (92) and an exhaust joint (93);

the copper sleeve (92) is arranged on the inner side of the cylinder body (91), and the exhaust joint (93) is connected with the outer surface of the cylinder body (91);

the piston (11.3) extends into the copper sleeve (92).

4. The energy-saving novel oil-free self-lubricating piston type air compressor as claimed in claim 3, characterized in that:

a circumferential hollow structure is arranged on the outer side of the joint of the cylinder body (91) and the copper sleeve (92) to form a gap; and the exhaust joint (93) is connected with the cylinder body (91) and a gap between the copper sleeve (92).

5. The energy-saving novel oil-free self-lubricating piston type air compressor as claimed in claim 4, wherein:

the number of the cylinder assemblies (10) and the number of the piston assemblies (11) are three and are uniformly arranged in the circumferential direction.

6. The energy-saving novel oil-free self-lubricating piston type air compressor as claimed in claim 5, wherein:

the cylinder cover (4) is covered on the valve plate assembly (6), and the cylinder cover (4) and the valve plate assembly (6) form an exhaust cavity and an air inlet cavity which are separated;

the valve plate assembly (6) comprises an air inlet valve plate (62), a valve plate (63), an air outlet valve plate (64) and a pressure plate (65),

the valve plate (63) is provided with an exhaust channel and an air inlet channel (68), and the exhaust channel comprises a first exhaust channel (67) and a second exhaust channel (69); one end of the first exhaust channel (67) is covered with an exhaust valve plate (64); one end cover of the air inlet channel (68) is provided with an air inlet valve plate (62);

two ends of the air inlet channel (68) are respectively communicated with the cylinder body (91) and the air inlet cavity, and the air inlet cavity is communicated with an air inlet on the cylinder cover (4); two ends of the first exhaust channel (67) are respectively communicated with the cylinder body (91) and the exhaust cavity, and the exhaust cavity is communicated with the exhaust channel of the cylinder body (91) through the second exhaust channel (69).