CN208651076U - Air compressor host assembly drive mechanism - Google Patents

Abstract

A kind of air compressor host assembly drive mechanism, including shell (1) and the movable piston (3) of opposite shell (1) energy, it is characterized in that the drive mechanism further includes eccentric shaft (2) and sliding block, eccentric shaft (2) one end, which has, forms power output end；The other end is equipped with a bearing (21) that can be rolled；Sliding block (4) is connect with piston above-mentioned (3) and the ground that can move linearly is set in shell (1) and then piston (3) is driven to move together, which forms track hole (41) or the track groove that cooperation is rolled with aforementioned bearings (21).Compared with prior art, the utility model has the advantage of rolling friction is used between the bearing and sliding block on eccentric shaft, coefficient of friction is small, wears small requirement reduction without lubricating oil supply, to axis.

Description

Air compressor host assembly drive mechanism

Technical field

The utility model relates to a kind of air compressor more particularly to the drive mechanisms of air compressor.

Background technique

Existing piston type air compressor working principle is as follows: band dynamic crankshaft rotates after motor start-up, passes through connecting rod Transmission, piston move reciprocatingly, and the swept volume being made of cylinder inner wall, cylinder cover and piston-top surface then can generating period Variation.Piston type air compressor mainly by body, crankshaft, connecting rod, piston group, valve, axle envelope, oil pump, energy conditioner, The components such as oil circulating system composition.

It can be that ZL201520215844.8 China utility model " a kind of piston type air compressor " (authorization is public with referenced patent number Announcement number is CN204663798U), application No. is 201610045255.9 Chinese invention patent applications to disclose " piston type electric vapour Vehicle air compressor " (Publication No. CN105508196A).

It is driven using link assembly, 360 ° of rotations are waved when work, can cause judder.Piston is equipped with bearing shell and song Axis transmission connection, crankshaft and bearing shell are planar friction, and need that lubricating oil constantly lubricates just can be to ask once lubricating oil is supplied out Topic, locking.

Utility model content

Technical problem to be solved in the utility model be for the above-mentioned state of the art and provide one kind run smoothly and Wear small air compressor host assembly drive mechanism.

Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of air compressor host assembly transmission knot Structure, including shell and opposite shell can movable pistons, it is characterised in that the drive mechanism further includes

Eccentric shaft, one end, which has, forms power output end；The other end is equipped with a bearing that can be rolled；And

Sliding block connects with piston above-mentioned and can be set in the housing with moving linearly and then drive and moves together with piston Dynamic, which forms track hole or the track groove that cooperation is rolled with aforementioned bearings.

Further, the power output end of the eccentric shaft is belt pulley, gear or sprocket wheel.

Preferably, the shell includes the first shell and assembles the second housing being integrated with the first shell, it is described Piston can then move linearly be set to first shell in, the sliding block can then be equipped with second housing with moving linearly Interior, second housing above-mentioned has the elongated portion crossed out, the length direction of the length direction of the elongated portion and the first shell Perpendicular, the eccentric shaft by being then able to rotate is set in the elongated portion.

To realize the guiding of sliding block and the convenience of assembly, the second housing includes ontology and is assemblied in ontology port End cap, the opposite two sides of aforementioned inner body wall have the first limited block, and the end cap side forms the elongated portion, separately There are two spaced apart extension, each extensions to have extended radially inwardly the second limited block for side axial direction projection, the end With after ontology assembly, extension above-mentioned offsets lid with corresponding first limited block, also, aforementioned first limited block and the second limit The guide groove with slider guide cooperation is formed between the block of position.

Preferably, the track hole is in kidney slot in kidney slot or the track groove.

Compared with the prior art, the advantages of the utility model are: sliding block moves straight up and down, and it is with small vibration, it runs smoothly, Rolling friction is used between bearing and sliding block on eccentric shaft, coefficient of friction is small, and abrasion is small, supplies without lubricating oil, to axis It is required that reducing.

Detailed description of the invention

Fig. 1 is example structure schematic diagram.

Fig. 2 is embodiment exploded view.

Fig. 3 is another viewing angle constructions schematic diagram of end cap in Fig. 2.

Fig. 4 is embodiment original state figure.

State diagram when Fig. 5 moves up for piston.

Fig. 6 is state diagram when piston is moved upwards up to extreme position.

Specific embodiment

The present invention will be described in further detail below with reference to the embodiments of the drawings.

As depicted in figs. 1 and 2, the air compressor host assembly in the present embodiment include shell 1, fixed piston 5, piston 3 and Power input mechanism, shell 1 is with content space and one end has the first one-way air inlet mouth 13.

Fixed piston 5 is set in shell 1 and inside has compressed gas channel 54, and the inlet end in the compressed gas channel 54 is set There is the second one-way air inlet mouth 53, outlet side draws shell 1 and forms compressed gas outlet 55.

Piston 3 is sheathed on 5 outside of fixed piston and can be located in shell 1 with moving linearly, the outer wall and shell of the piston 3 1 inner wall of body forms the first compression chamber 71, and the inner wall of piston 3 and the outer wall of fixed piston 5 form the second compression chamber 72, also, dynamic Piston 3 is equipped with the third one-way air inlet mouth 31 that air-flow can be moved from the first compression chamber 71 to the second compression chamber 72, the first compression The maximum volume of chamber 71 is greater than the maximum volume of the second compression chamber 72.

Power input mechanism and piston 3 are sequentially connected and piston 3 can be driven mobile.Power input in the present embodiment Mechanism includes eccentric shaft 2 and sliding block 4, and 2 one end of eccentric shaft has belt pulley 23, can obtain power output；The other end is equipped with one The bearing 21 that can be rolled；Sliding block 4 connect with piston 3 and can be set to moving linearly in shell 1 and then drive piston 3 together Mobile, which forms the track hole 41 that cooperation is rolled with bearing 21, and track hole 41 uses kidney slot.In the present embodiment Piston 3 is sheathed on after fixed piston 5 and is welded as a whole again with sliding block 4.It can certainly be fixed with bolts.

Shell 1 includes the first shell 11 and assembles the second housing 12 being integrated with the first shell 11, and piston 3 then can be straight Line is mobile to be set in first shell 11, and sliding block 4 can be then equipped in second housing 12 with moving linearly, and second housing 12 has The elongated portion 123 crossed out, the length direction of the elongated portion 123 and the length direction of the first shell 11 are perpendicular, eccentric shaft 2 It is set in the elongated portion 123 with being able to rotate by rolling bearing 22.

As shown in connection with fig. 3, second housing 12 includes ontology 121 and the end cap 122 for being assemblied in 121 port of ontology, ontology 121 The opposite two sides of inner wall have the first limited block 120, and 122 side of end cap forms elongated portion 123, and there are two other side axial direction projections Spaced apart extension 124, each extension 124 have extended radially inwardly the second limited block 125, the end cap 122 and sheet After body 121 assembles, extension 124 offsets with corresponding first limited block 120, also, the first limited block 120 and the second limited block The guide groove with the guiding cooperation of sliding block 4 is formed between 125.

First one-way air inlet mouth 13 of shell 1 is equipped with the first check valve, sets on the second one-way air inlet mouth 53 of fixed piston 5 There is second one-way valve, the third one-way air inlet mouth 31 of piston 3 is equipped with third check valve.First in the present embodiment is unidirectional Valve block 61, valve block 62 and valve block 63 is respectively adopted in valve, second one-way valve and third check valve.

As shown in connection with fig. 4, under original state, piston is bonded with fixed piston, and as shown in connection with fig. 5, belt pulley obtains power After input, the bearing on eccentric shaft is run in the track hole of sliding block, and sliding block moves up, and piston is driven to move up, and is moved The air of first compression chamber is pressed onto the second compression chamber by piston, as shown in connection with fig. 6, until piston is bonded with inner walls, The air of first compression chamber is pressed into completely in the second compression chamber, while the air in the second compression chamber is logical by compressed air Road is exported from compressed gas and is discharged.

Belt pulley continues to rotate, and piston moves down, and air enters in the first compression chamber from the first one-way air inlet mouth, simultaneously The compressed air of second compression chamber is constantly exported from compressed gas and is discharged, until piston is bonded with fixed piston, the second compression Intracavitary air is completely exhausted out, while the air in the first compression chamber reaches maximum volume, and successively back and forth, compressed air is constantly arranged Out.

Piston in the present embodiment is all making air compression processing back and forth straight up and down, and compressed air pressure value is higher, Working efficiency improves.When returning due to piston again, also making air compression, piston is buffered, greatly to whole impulse force Reduce, service life greatly improves, while vibrating reduction, reduces noise.

Rolling friction is used between bearing and sliding block on eccentric shaft, coefficient of friction is small, and abrasion is small, supplies without lubricating oil It answers, the requirement to axis reduces.Crankshaft and bearing shell are planar friction in common piston type air compressor, need lubricating oil not Disconnected lubrication just can be locking once lubricating oil supply is gone wrong.

Claims (5)

1. a kind of air compressor host assembly drive mechanism, including shell (1) and the movable piston (3) of opposite shell (1) energy, It is characterized in that the drive mechanism further includes

Eccentric shaft (2), one end, which has, forms power output end；The other end is equipped with a bearing (21) that can be rolled；And

Sliding block (4), connect with piston above-mentioned (3) and the ground that can move linearly is set in shell (1) and then drives piston (3) It moves together, which forms track hole (41) or the track groove that cooperation is rolled with aforementioned bearings (21).

2. air compressor host assembly drive mechanism according to claim 1, it is characterised in that the power of the eccentric shaft (2) Output end is belt pulley (23), gear or sprocket wheel.

3. air compressor host assembly drive mechanism according to claim 1, it is characterised in that the shell (1) includes the One shell (11) and the second housing (12) being integrated with the first shell (11) assembly, the piston (3) then can straight line shiftings Dynamic is set in first shell (11), and the sliding block (4) can be then equipped in second housing (12) with moving linearly, above-mentioned Second housing (12) has the elongated portion (123) that crosses out, the length direction of the elongated portion (123) and the first shell (11) Length direction is perpendicular, and the eccentric shaft (2) by being then able to rotate is set in the elongated portion (123).

4. air compressor host assembly drive mechanism according to claim 3, it is characterised in that the second housing (12) Including ontology (121) and it is assemblied in the end cap (122) of ontology (121) port, the opposite two sides of aforementioned ontology (121) inner wall have First limited block (120), the end cap (122) side form the elongated portion (123), and there are two other side axial direction projections Spaced apart extension (124), each extension (124) have extended radially inwardly the second limited block (125), the end cap (122) and after ontology (121) assembly, extension (124) above-mentioned offsets with corresponding first limited block (120), also, aforementioned The guide groove with the cooperation of sliding block (4) guiding is formed between first limited block (120) and the second limited block (125).

5. air compressor host assembly drive mechanism according to claim 1, it is characterised in that the track hole (41) is in Kidney slot or the track groove are in kidney slot.