CN207261195U

CN207261195U - A kind of direct connection oil-free air compressor

Info

Publication number: CN207261195U
Application number: CN201720839474.4U
Authority: CN
Inventors: 吴仕儒
Original assignee: Taizhou Boshi Compressor Technology Co Ltd
Current assignee: Taizhou Boshi Compressor Technology Co Ltd
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2018-04-20
Anticipated expiration: 2027-07-12

Abstract

The utility model discloses a kind of direct connection oil-free air compressor, including crankcase, motor cylinder, stator component, rotor part, crankshaft component, connecting rod piston component, cylinder, cylinder cap plate member, fan blade, wind scooper, bearing, cylinder cap, screw and terminal box；The technological merit of the utility model is that the direct connection oil-free air compressor structure has great innovation, the advantages of integrating reciprocating swing rod and linear reciprocating structure, more compact structure, using more convenient, volume, weight are greatly reduced relative to traditional directly oil-free air compressor, and capacity is substantially improved, more importantly degree of protection has reached IP67 grades, heat dissipation is good, it is not necessary to which additional supplemental heat rejected facility, noise are lower, smaller is vibrated, service life is longer.

Description

A kind of direct connection oil-free air compressor

Technical field

It the utility model is related to a kind of direct connection oil-free air compressor.

Background technology

As country increasingly payes attention to environmental protection, the development of new-energy automobile is supported energetically, new-energy automobile brake Air compressor machine demand is more and more, at present, this field use air compressor machine be substantially import, mainly have slide-blade air compressor, Screw-rod air compressor, because being all to have oil lubrication, the time is grown, and lubricating oil easily emulsifies, and air compressor machine insufficient lubrication is caused event Barrier, some potential safety problems is brought to driving.A simple, reliable oil-free air compressor will be that new-energy automobile brake helps The desired configuration of power.

At present, direct connection oil-free air compressor, is all to use ventilation hole or Open architecture for the ease of heat dissipation, connecting rod, Enameled wire of the moving components such as piston and motor stator etc. is all directly exposed, and degree of protection is low, when use environment is more severe When, such as：Rainwater, mud, metallic dust, particulate matter etc. enter in motor or transport power friction pair, it will cause kinematic pair stuck, gas Cylinder scuffing of cylinder bore, burn-down of electrical machinery etc., so, current this air compressor may be only available for being air-dried, well-ventilated, without larger powder In the environment of dirt.Meanwhile the capacity of direct connection oil-free air compressor commercialization is smaller, single-head maximum capacity is less than 0.2m3/min, what it is more than above discharge capacity is composed by several, and after more head combinations, the appearance and size of product all compares It is larger, and new-energy automobile keeps for the riding position of air compressor generally all on the chassis of automobile, car running process In, rainwater, mud, metallic dust, particulate matter can all enter, and using current direct connection oil-free air compressor, will give air pressure Contracting machine brings fatal influence, and capacity does not reach requirement yet, is combined using more heads, and appearance and size is again too big, peace Do not put, develop a kind of high-protection level（IP67）, big capacity, simple, reliable direct connection oil-free air compressor become row The expectation of industry.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of direct connection oil-free air compressor, solve current direct connection without Oily air compressor protects the problems such as poor, capacity is small, less efficient.

To solve the above problems, the utility model adopts the following technical solution：

A kind of direct connection oil-free air compressor, including crankcase, motor cylinder, stator component, rotor part, crank part, Connecting rod piston component, cylinder, cylinder cap plate member, fan blade, wind scooper, bearing, cylinder cap, screw and terminal box；

Three screws are combined between the motor cylinder and the crankcase；The bottom of the motor cylinder is provided with motor Foot.

The stator component is arranged on the motor cylinder, and the rotor part is movably arranged on the inner ring of the stator component At position；

The crankcase coordinates seam allowance one end to be equipped with O-ring seals with the motor cylinder, and the crankcase is connected with cylinder Cylinder packing is equipped with position, the bent axle box shape is quadrangle, is equipped with end face of the crankcase away from motor cylinder Baffle, baffle is concordant with the end face of crankcase, and the both ends of the rotor part are all extended in the crankcase, the rotor portions Bearing is combined between part and the crankcase, side of the bearing away from the motor cylinder is equipped with oil sealing, the rotor portions Flat key is combined between part and the crank part；The fan blade is directly driven by rotor part, and fan blade is bigger than baffle, fan blade Air quantity caused by operating, through wind scooper water conservancy diversion from four side position of crankcase by effectively to motor radiating, while again can be effective Prevent rainwater, dust etc. from entering motor internal or entering inside crankcase, this is that the utility model is compressed with existing oil-free air One of maximum difference of machine.

The wind scooper is formed using plastic injection, and the wind scooper is v-shaped structure, on the big disc of the wind scooper Circular vent is provided with, strip reinforcing rib is provided with the circular vent, the wind scooper is fixed by four screws, Two of which screw is fixed on two cylinder caps of side, two other screw is fixed on crankcase；The air quantity that fan blade produces Through wind scooper water conservancy diversion, in addition to motor radiating, can also carry out surface cooling to cylinder, cylinder cap, can finite reduction delivery temperature, This is also one of maximum difference of the utility model and existing oil-free air compressor.

The motor cylinder is molded using aluminium alloy compression casting, and the motor cylinder and terminal box joint face have gasket, described Terminal box lead-out wire is connected with aviation socket, and aviation socket can prevent rainwater from entering motor internal, and wiring is also more pacified just, in institute State side of the terminal box away from the motor cylinder and be fixedly installed connector cover；

The connecting rod piston component includes piston, connecting rod and screw, and the piston-top surface sets leather cup, in the piston top Face is additionally provided with a pressing plate, and the leather cup is pushed down by the pressing plate, and the pressing plate is screwed on piston-top surface, The bottom of the piston is provided with two support rings, and a piston pin is equipped with the outer wall of the piston, the piston pin Circlip is combined between both ends and the piston, the piston is connected with connecting rod by the piston pin locked, described There is needle bearing on piston pin, the needle bearing both sides are equipped with the first oil sealing, are stored between needle bearing and the first oil sealing There is grease；Can ensure needle bearing work up to 10000 it is small when not oil starvation and damage, this is also the utility model and existing oil-free One of maximum difference of air compressor.

The cylinder is drawn by aluminium alloy and stretches shaping, and the both ends of the cylinder are equipped with seam allowance, one end and the song of the cylinder Axle box coordinates, and the other end and the cylinder cap plate member of the cylinder coordinate；Ensure valve plate and the O-ring seals of cylinder seal The piston force that decrement produces during 0.2 ~ 0.3mm, compressor operating is supported with frictional force by the whole step surface of cylinder, Keep away and exert oneself all active forces on O-ring seals, cause O-ring seals fatigue damage, so as to cause compressor fault, this is also One of maximum difference of the utility model and existing oil-free air compressor.

The cylinder cap plate member, including cylinder cap, valve plate, strengthen valve block, metal gasket, the first screw, the second screw and Limiter, the cylinder cap are rectangle, and the cylinder cap has an inlet chamber and two discharge chambers, and the valve plate is circular, institute Valve plate is stated with being provided with the first O-ring seals at cylinder cap mating surface position, there is air-intake valve plate and exhaust valve plate, institute on the valve plate State air-intake valve plate to compress by the reinforcement valve block and metal gasket, the air-intake valve plate is fixed on valve plate by the first screw On, the exhaust valve plate limits lift height by the limiter, and the second spiral shell is combined between the cylinder cap and the cylinder Nail, second screw is embedded in the crankcase after passing through the cylinder cap and the cylinder, since so ensure that work Reliability, and be easily installed, it will not malfunction；

The fan blade is movably arranged in the wind scooper, and fan blade spiral shell is combined between the fan blade and the rotor part Nail, the fan blade is prismatic blade, and totally 9, fan blade is in the outside of baffle.

The beneficial effects of the utility model are：The technological merit of the utility model is the direct connection oil-free air compressor Compact-sized, easy to use, volume, weight are greatly reduced relative to traditional directly oil-free air compressor, and capacity significantly carries Rise, it is often more important that degree of protection has reached IP67 grades, and heat dissipation is good, it is not necessary to which additional supplemental heat rejected facility, noise is lower, shakes Dynamic smaller, service life are longer.

Brief description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other attached drawings can also be obtained according to these attached drawings.

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is the enlarged drawing of connecting rod piston component；

Fig. 3 is the enlarged drawing of cylinder cap plate member；

Fig. 4 is the cooperation schematic diagram of wind scooper and fan blade.

Reference numeral in figure：

1st, wind scooper；2nd, fan blade screw；3rd, fan blade；4th, baffle；5th, flat key；6th, bearing；7th, crank part；8th, the 3rd spiral shell Nail；9th, motor cylinder；10th, stator component；11st, motor foot；12nd, terminal box；13rd, connector cover；14th, the 4th screw；16th, O shapes are close Seal；17th, oil sealing；18th, screw；19th, crankcase；20th, rotor part；21st, cylinder；22nd, cylinder cap；23rd, aviation plug；25th, gas Cylinder gasket；26th, circlip；27th, leather cup；28th, air-intake valve plate；29th, metal gasket；30th, valve plate；31st, the second screw；32、 Cylinder cap sealing ring；33rd, limiter；34th, exhaust valve plate；35th, the first screw；36 pressing plates；37th, screw；38th, piston pin；39th, it is living Plug；40th, support ring；41st, connecting rod；115th, cylinder cap plate member.

Embodiment

The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, so as to make the scope of protection of the utility model apparent clear and definite Define.

Refering to a kind of direct connection oil-free air compressor shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, including crankcase 19, motor cylinder 9th, stator component 10, rotor part 20, crank part 7, connecting rod piston component 114, cylinder 21, cylinder cap plate member 115, fan blade 3rd, wind scooper 1, bearing 6, cylinder cap 22, screw 18 and terminal box 12；

The 3rd screw 8 is combined between the motor cylinder 9 and the crankcase 19；Set in the bottom of the motor cylinder 9 There is motor foot 11；

The stator component 10 is arranged on the motor cylinder 9, and the rotor part 20 is movably arranged on the stator component At 10 inner ring position；

The crankcase 19 coordinates seam allowance one end to be equipped with O-ring seals 16, the crankcase 19 and gas with the motor cylinder 9 Cylinder packing 25 is equipped with 21 link position of cylinder, 19 shape of crankcase is quadrangle, in crankcase 19 away from motor cylinder 9 End face at be equipped with baffle 4, baffle 4 is concordant with the end face of crankcase 19, and the both ends of the rotor part 20 all extend to institute State in crankcase 19, bearing 6 is combined between the rotor part 20 and the crankcase 19, the bearing 6 is away from the electricity The side of machine barrel 9 is equipped with oil sealing 17, and flat key 5 is combined between the rotor part 20 and the crank part 7；The fan blade by Rotor part directly drives, and fan blade is bigger than baffle, air quantity caused by fan blade operating, through wind scooper water conservancy diversion from four side of crankcase Position is by effectively to motor radiating, while can effectively prevent rainwater, dust etc. from entering motor internal or entering in crankcase again Face, this is one of maximum difference of the utility model and existing oil-free air compressor.

The wind scooper 1 is formed using plastic injection, and the wind scooper 1 is v-shaped structure, in the great circle of the wind scooper 1 Circular vent 101 is provided with face, strip reinforcing rib 102, the wind scooper 1 are provided with the circular vent 101 Fixed by four screws 18, two of which screw 18 is fixed on two cylinder caps 22 of side, two other screw 18 is fixed on On crankcase 19；The air quantity that fan blade produces in addition to motor radiating, can also carry out table through wind scooper water conservancy diversion to cylinder, cylinder cap Face cools down, can finite reduction delivery temperature, this one of is also the utility model with the maximum difference of existing oil-free air compressor.

The motor cylinder 9 is molded using aluminium alloy compression casting, and the motor cylinder 9 and 12 joint face of terminal box have gasket, 12 lead-out wire of terminal box is connected with aviation socket 23, and the 4th screw is combined between the aviation socket and the terminal box 14, aviation socket can prevent rainwater from entering motor internal, and wiring is also more pacified just, in the terminal box 12 away from the motor cylinder 9 side is fixedly installed connector cover 13；

The connecting rod piston component 114 includes piston 39, connecting rod 41 and screw 37, and 39 top surface of piston sets leather cup 27, a pressing plate 36 is additionally provided with 39 top surface of piston, the leather cup 27 is pushed down by the pressing plate 36, the pressing plate 36 is logical Cross screw 37 to be fixed on 39 top surface of piston, the bottom of the piston 39 is provided with two support rings 40, in the piston 39 Outer wall at be equipped with a piston pin 38, be combined with circlip 26 between the both ends of the piston pin 38 and the piston 39, The piston 39 is locked by the piston pin 38 with connecting rod 41 and connected, and has needle bearing on the piston pin 38（Do not scheme Show）, the needle bearing both sides are equipped with the first oil sealing（It is not shown）, grease is stored between needle bearing and the first oil sealing； Can ensure needle bearing work up to 10000 it is small when not oil starvation and damage, this is also the utility model and existing oil-free air pressure One of maximum difference of contracting machine.

The cylinder 21 is drawn by aluminium alloy and stretches shaping, and the both ends of the cylinder 21 are equipped with seam allowance（It is not shown）, the gas One end of cylinder 21 coordinates with crankcase 19, and the other end and the cylinder cap plate member 115 of the cylinder 21 coordinate；Ensure valve plate and gas Piston force that the decrement of the O-ring seals of cylinder sealing produces during 0.2 ~ 0.3mm, compressor operating and frictional force by The whole step surface support of cylinder, keeps away and exerts oneself all active forces on O-ring seals, cause O-ring seals fatigue damage, so that Compressor fault is caused, this is also one of maximum difference of the utility model and existing oil-free air compressor.

The cylinder cap plate member 115, including cylinder cap 22, valve plate 30, strengthen valve block, metal gasket 29, the first screw 35, Second screw 31 and limiter 33, the cylinder cap 22 are rectangle, and the cylinder cap 22 has an inlet chamber and two discharge chambers, The valve plate 30 is circle, and the valve plate 30 at 22 mating surface position of cylinder cap with being provided with the first O-ring seals（It is not shown）, institute Stating has air-intake valve plate 28 and exhaust valve plate 34 on valve plate 30, the air-intake valve plate 28 passes through the reinforcement valve block and metal gasket 29 Compress, the air-intake valve plate 28 is fixed on valve plate 30 by the first screw 35, and the exhaust valve plate 34 passes through the limiter 33 limitation lift heights, are combined with the second screw 31, second screw 31 passes through between the cylinder cap 22 and the cylinder 21 After the cylinder cap 22 and the cylinder 21 in the embedded crankcase 19, since so ensure that the reliability of work, and it is easy to Installation, will not malfunction；

The fan blade 3 is movably arranged in the wind scooper 1, is combined between the fan blade 3 and the rotor part 20 Fan blade screw 2, the fan blade are prismatic blade, and totally 9, fan blade is in the outside of baffle.

The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Simply illustrate the utility model principle, on the premise of not departing from the spirit and scope of the utility model the utility model can also There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model will Protection domain is asked to be defined by appended claims and its equivalent.

Claims

A kind of 1. direct connection oil-free air compressor, it is characterised in that：Including crankcase（19）, motor cylinder（9）, stator component （10）, rotor part（20）, crank part（7）, connecting rod piston component（114）, cylinder（21）, cylinder cap plate member（115）, wind Leaf（3）, wind scooper（1）, bearing（6）, cylinder cap（22）, screw（18）And terminal box（12）；

The motor cylinder（9）With the crankcase（19）Between be combined with three screws（8）；In the motor cylinder（9）Bottom It is provided with motor foot（11）；

The stator component（10）It is arranged on the motor cylinder（9）, the rotor part（20）It is movably arranged on the stator department Part（10）Inner ring position at；

The crankcase（19）With the motor cylinder（9）Seam allowance one end is coordinated to be equipped with O-ring seals（16）, the crankcase（19） With cylinder（21）Cylinder packing is equipped with link position（25）, the crankcase（19）Shape is quadrangle, in crankcase （19）Away from motor cylinder（9）End face at be equipped with baffle（4）, baffle（4）With crankcase（19）End face it is concordant, the rotor Component（20）Both ends all extend to the crankcase（19）It is interior, the rotor part（20）With the crankcase（19）Between match somebody with somebody Conjunction has bearing（6）, the bearing（6）Away from the motor cylinder（9）Side be equipped with oil sealing（17）, the rotor part（20）With The crank part（7）Between be combined with flat key（5）；

The wind scooper（1）Formed using plastic injection, the wind scooper（1）For v-shaped structure, in the wind scooper（1）It is big Circular vent is provided with disc（101）, in the circular vent（101）On be provided with strip reinforcing rib（102）, it is described Wind scooper（1）By four screws（18）It is fixed, two of which screw（18）It is fixed on two cylinder caps of side（22）On, in addition two A screw（18）It is fixed on crankcase（19）On；

The motor cylinder（9）It is molded using aluminium alloy compression casting, the motor cylinder（9）With terminal box（12）Joint face has sealing Pad, the terminal box（12）Lead-out wire is connected with aviation socket, in the terminal box（12）Away from the motor cylinder（9）Side It is fixedly installed connector cover（13）；

The connecting rod piston component（114）Including piston（39）, connecting rod（41）And screw（37）, the piston（39）Top surface is set Leather cup（27）, in the piston（39）Top surface is additionally provided with a pressing plate（36）, pass through the pressing plate（36）Push down the leather cup （27）, the pressing plate（36）Pass through screw（37）It is fixed on piston（39）On top surface, in the piston（39）Bottom be provided with Two support rings（40）, in the piston（39）Outer wall at be equipped with a piston pin（38）, the piston pin（38）Both ends With the piston（39）Between be combined with circlip（26）, the piston（39）With connecting rod（41）Pass through the piston pin（38） Locking connection, in the piston pin（38）On have needle bearing, the needle bearing both sides are equipped with the first oil sealing, in needle bearing Grease is stored between the first oil sealing；

The cylinder（21）Drawn by aluminium alloy and stretch shaping, the cylinder（21）Both ends be equipped with seam allowance, the cylinder（21）'s One end and crankcase（19）Coordinate, the cylinder（21）The other end and cylinder cap plate member（115）Coordinate；

The cylinder cap plate member（115）, including cylinder cap（22）, valve plate（30）, strengthen valve block, metal gasket（29）, the first spiral shell Nail（35）, the second screw（31）And limiter（33）, the cylinder cap（22）For rectangle, the cylinder cap（22）With an air inlet Chamber and two discharge chambers, the valve plate（30）For circle, the valve plate（30）With cylinder cap（22）Is provided with mating surface position One O-ring seals, the valve plate（30）On have air-intake valve plate（28）And exhaust valve plate（34）, the air-intake valve plate（28）Pass through institute State and strengthen valve block and metal gasket（29）Compress, the air-intake valve plate（28）Pass through the first screw（35）It is fixed on valve plate（30） On, the exhaust valve plate（34）Pass through the limiter（33）Limit lift height, the cylinder cap（22）With the cylinder（21） Between be combined with the second screw（31）, second screw（31）Through the cylinder cap（22）With the cylinder（21）Institute is embedded in afterwards State crankcase（19）It is interior；

The fan blade（3）It is movably arranged on the wind scooper（1）It is interior, the fan blade（3）With the rotor part（20）Between match somebody with somebody Conjunction has fan blade screw（2）.