CN201241808Y - Air compressor - Google Patents

Abstract

An air compressor adopts splashed lubricant to lubricate and cool piston sleeve, while the piston sleeve comprises a cylinder and a piston moving reciprocally in the cylinder. In one design, the cooling channel can be combined or formed on the cylinder to guide the lubricant splashed on the cylinder to flow in a required type, such as that the lubricant helically flows around the cylinder, to effectively cool the piston sleeve. Optionally, the cylinder can comprises an annular flange which diameter larger than other parts of the cylinder, the annular flange can be contained in a sink hole of the cylinder base, and a cylinder cover fixed on the cylinder base provides a clamp force for the annular flange to clamp or fix the cylinder cover on the cylinder.

Description

Air compressor

Technical field

In short, the application relates to air compressor system, especially relates to the improvement of air compressor system, and this improvement allows the air compressor system can be with lower cost manufacturing, and improves the steadiness of this air compressor system.

Background technique

The application requires the preference of the U.S. Provisional Patent Application 60/880472 on January 12nd, 2007, its disclosed content as here fully sets forth in detail be hereby incorporated by.

Application according to medium load, air compressor system with one or more reciprocating pistons that the single-stage air compression is provided may not expensive relatively, light weight and durable, and such air compressor system is quite welcome in the user of the specialty of different range and amusement.Along with become ripe more and pneumatically of the user of air compressor system is that the annex quantity of power increases and cost when descending, the interest of the air compressor system of high output pressure has improved people to producing more.The cost of the High-Pressure Compressor system that can access, especially those (for example comprise secondary compression or the compression of other type, scroll compressor) cost is higher relatively than the cost of single-stage air compressor system, and this may constrain the enthusiasm of Consumer to the High-Pressure Compressor system.

Therefore, provide a kind of and use single stage compression but manufacturing, operation, maintenance cost is relatively low and firm relatively air compressor system is favourable.Those skilled in the art will recognize that instruction of the present disclosure has practicability to dissimilar air compressor system etc., the disclosure need not be confined to the compressed-air actuated compressor that Reciprocting piston compressor maybe can be exported relatively high pressure power.

Novel content

In one form, this instruction provides a kind of air compressor of the member that has cylinder seat group, bent axle, piston external member group and be associated with bent axle.The cylinder seat group has cover plate and limits inner chamber.At least a portion of inner chamber forms storage tank, and this storage tank is configured to receive oiling agent, makes this oiling agent be arranged on liquid lubricant and fills with under the liquid level.Bent axle rotatably is arranged in the inner chamber.Piston external member group has cylinder and piston external member.Cylinder receives and limits piston hole by cover plate.Form at least one cooling channel at the cylinder external surface peripheral.The piston external member comprises piston, wrist pin and connecting rod.Piston is received in the piston hole slidably.Wrist pin is connected to first end of connecting rod with piston, and second end of connecting rod is attached on the bent axle.Member moves in storage tank, and at least a portion of member is filled with liquid level across liquid lubricant when making crankshaft rotating.Member is suitable for from the storage tank oiling agent of dishing out outward, make the first portion of the oiling agent dish out accumulate in piston hole and the piston at least one, in order to the interface between lube pistons and the cylinder, and the second portion of the oiling agent of dishing out accumulates at least one cooling channel, and move round the outer surface of cylinder at least in part, thereby absorb heat from cylinder according to the gravity that applies.This air compressor does not comprise and is used for the lubricating pump of pumping oiling agent with lube pistons group and bent axle.

In another form, this instruction provides a kind of air compressor of the member that has cylinder seat group, bent axle, oiling agent, piston external member and be associated with bent axle.The cylinder seat group has cover plate and limits inner chamber.At least a portion of inner chamber forms storage tank.Bent axle rotatably is arranged in the inner chamber, and oiling agent is arranged in the storage tank.Piston external member group has cylinder and piston external member.Cylinder receives and limits piston hole by cover plate.The piston external member comprises piston, wrist pin and connecting rod.Piston is received in the piston hole slidably.Wrist pin is connected to first end of connecting rod with piston, and second end of connecting rod is attached on the bent axle.Member is associated with bent axle and moves by the oiling agent in the storage tank, thereby from the storage tank oiling agent of dishing out outward, make the first portion of the oiling agent dish out accumulate in piston hole and the piston at least one, in order to the interface between lube pistons and the cylinder, and the second portion of the oiling agent of dishing out is from the surface absorption heat except that piston hole of cylinder.Cylinder is configured to collect the second portion of the oiling agent of dishing out, and controls second portion the flowing when being back to storage tank of the oiling agent of dishing out.

In another form, this instruction provides a kind of method from air compressor discharge heat, and this air compressor comprises cylinder seat group, bent axle, oiling agent and piston external member.The cylinder seat group has cover plate and limits inner chamber, and at least a portion of inner chamber forms storage tank.Bent axle rotatably is arranged in the inner chamber.Oiling agent is arranged in the storage tank.Piston external member group has cylinder and piston external member.Cylinder receives and limits piston hole by cover plate.The piston external member comprises piston, wrist pin and connecting rod.Piston is received in the piston hole slidably.Wrist pin is connected to first end of connecting rod with piston, and second end of connecting rod is attached on the bent axle.This method comprises: rotary crankshaft makes piston to-and-fro motion in cylinder, alternately air is sucked cylinder and pressurized air, wherein, the rotation of bent axle makes the component movement related with bent axle by the oiling agent in the storage tank, the oiling agent thereby this member is outwards dished out; Discharge pressurized air from cylinder; On the outer surface of cylinder, collect the oiling agent that part is dished out; The oiling agent that the part of collecting with guide is dished out flows in a predetermined manner on the outer surface, to allow that heat is discharged to the oiling agent that the part collected is dished out from cylinder.

In another form, this instruction provides a kind of air compressor that has crank box, bent axle, oiling agent, compression cylinder, piston external member and cap assemblies.Crank box comprises cover plate and limits inner chamber.At least a portion of inner chamber forms storage tank.Bent axle rotatably is arranged in the inner chamber, and oiling agent is arranged in the storage tank.Compression cylinder comprises substantially by inner chamber outer surface that surrounds and the internal surface that limits piston hole.The piston external member comprises piston, wrist pin and connecting rod.Piston is received in the piston hole slidably.Wrist pin is connected to first end of connecting rod with piston, and second end of connecting rod is attached on the bent axle.Cap assemblies is attached on the crank box and comprises expulsion valve.Piston to-and-fro motion in cylinder is arranged at air between compression cylinder, piston and the cap assemblies with compression, and wherein, when the compressed-air actuated pressure in the compression cylinder surpassed predetermined pressure, valve was opened to discharge the pressurized air in the compression cylinder.

Other field of using will become apparent from the explanation that provides here.Should be understood that description and concrete example only are intended to illustrative purposes rather than restriction the scope of the present disclosure.

Description of drawings

Accompanying drawing described herein only is an illustrative purposes, rather than limits the scope of the present disclosure in any form.

Fig. 1 is the perspective view according to the air compressor system of constructed of the present disclosure;

Fig. 2 is the sectional view of the air compressor system of Fig. 1, and air compressor system is vertically passed in this cross section on the direction perpendicular to the spin axis of bent axle and the reciprocating axis of piston dome;

Fig. 2 A is the sectional view of air compressor system, and graphical illustration has the bonnet that is used to hang the hook of having used oil vessel;

Fig. 3 is the perspective exploded view of the air compressor system of Fig. 1;

Fig. 4 is the front view of the air compressor system part of Fig. 1, graphical illustration bonnet in more detail;

Fig. 5 and 6 is the side view of the air compressor system part of Fig. 1, graphical illustration piston dome in more detail;

Fig. 7 is the bottom view of piston dome;

Fig. 7 A to 7D is the perspective view of cylinder with another kind of structure of the cooling channel that forms with different models;

Fig. 8 is the part enlarged view of Fig. 3, the jointing place of graphical illustration cap assemblies, cylinder and cylinder seat in more detail;

Fig. 8 A is similar to Fig. 8, but explanation has the cylinder with the cylinder flange that separates of cylinder block combination;

Fig. 9 is the perspective exploded view of a cap assemblies part, one of suction valve element that graphical illustration separates from valve plate;

Figure 10 is the bottom view of a cap assemblies part, and graphical illustration is installed to the lid sealing that covers;

Figure 11 is similar to FIG. 10, but explanation is installed to the expulsion valve element that covers;

Figure 12 is similar to Figure 11, but the valve plate that covers is covered in explanation;

Figure 13 is similar to Figure 12, but the suction valve element on the valve plate is covered in explanation;

Figure 13 A is the perspective view according to the bent axle of the single-cylinder air compressor system of constructed of the present disclosure;

Figure 14 is the perspective view according to another air compressor system of constructed of the present disclosure;

Figure 15 be Figure 14 air compressor system pass the sectional view that a piston external member is cutd open the part of getting;

Figure 16 is the side view of the portion of air compressor assembly of Figure 14, graphical illustration cylinder in more detail;

Figure 17 is the sectional view of a part of cylinder;

Figure 18 is an exploded view, and the cylinder that separates from the cylinder upper shield is described; With

Figure 19 is the sectional view of the portion of air compressor assembly of Figure 14, and the graphical illustration motor sub-assembly is installed on the bonnet in more detail.

Embodiment

With reference to figure 1-3, point out by reference character 10 according to the air compressor system integral body of constructed of the present disclosure.This air compressor system 10 can comprise cylinder seat group 12, bent axle group 14, piston external member group 16 and cylinder head group 20, and piston external member group 16 can comprise pair of pistons external member 18.

The cylinder seat group

With reference to figure 2 and 3, cylinder seat group 12 can comprise cylinder seat assembly 30, rear case component 32 and back cap packing 34, and they can be cooperated and be formed for holding liquid lubricant, the storage tank 36 of oil for example.It should be noted that this air compressor system establishes 10 and be built into such operation, make that the liquid lubricant in the storage tank 36 has a upper surface (that is, liquid lubricant is filled with liquid level).

Cylinder seat assembly 30 can comprise cylinder seat 40, a pair of locating stud 42 and axle envelope 44.Cylinder seat 40 can comprise casing or seat 50 and mounting base 52, and this mounting base 52 is can be with seat 50 integrally formed and so that seat 50 is installed to other structural mode disposes, for example the framework (not shown).This 50 can comprise a plurality of sidewall 54a, 54b and 54c and the upper cover plate 56 that is formed with one or more counterbores 58 and a plurality of threaded upper bolt holes 60 therein.In the specific embodiment that provides, sidewall 54a, 54b and 54c and upper cover plate 56 are arranged so that counterbore 58 orientations are to provide axial arrangement, wherein piston external member 18 is set to single along vertically extending axle, but those skilled in the art are to be understood that, this 50 can be configured as the orientation that piston external member 18 provides any requirement in addition, for example V or opposite cylinder configuration.In the specific embodiment that this provides, the shape of seat 50 (the past or back plane figure see) is similar to truncated tear (tear that promptly has flat upper end).

The adpting flange 64 that seat 50 can limit after-opening 60a, inner chamber 62 and extend around after-opening 60a, back cap packing 34 can adjoin hermetically with adpting flange 64.A pair of pin-and-hole 66 and a plurality of threaded shank hole 68 can form in present 50 and substantially perpendicular to adpting flange 64.Locating stud 42 can receive in the pin-and-hole 66, and can be used for back cap packing 34 and rear case component 32 are positioned seat 50. Sidewall 54a, 54b and 54c can be included as a plurality of external refrigeration fins 70 that seat 50 provides the external surface area of increase and/or forms a plurality of runners 72 jointly.In the specific embodiment that provides, relative sidewall 54a and the external refrigeration fin 70 on the 54b be longitudinal extension on the whole surface of sidewall 54a and 54b substantially, and the direction of the cooling fin 70 on the front panel 54c is substantially perpendicular to relative sidewall 54a and the cooling fin 70 on the 54b.Selectively, seat 50 may further include a plurality of inner cooling fin (not shown), and these inner cooling fins can be configured to increase the interior surface area of seat 50 and/or flow with the oiling agent in the mode guide seat 50 that requires.Inner cooling fin can be provided with in the mode of any requirement, for example parallel or across (for example vertical) in external refrigeration fin 70.

Front panel 54c can limit axis hole 80, be arranged on axis hole 80 annular cover 82 and one or more sensor axle sleeve 84 on every side.Axle envelope 44 can be received in the annular cover 82, and is coupled to hermetically on the seat 50.Each sensor axle sleeve 84 can form and be used for receiving sensor, sensor (not shown) or temperature transducer (not shown) for example float, they can distinguish perception lubricant level and lubricant temperature, and produce lubricant level signal and lubricant temperature signal respectively.Lubricant level signal and/or lubricant temperature signal can be applied to the controller (not shown), when being less than the quantity of requirement as the oiling agent quantity in present 50 and/or lubricant temperature in the seat 50 when exceeding the value of requirement, controller stops or preventing the operation of air compressor system 10.It will be appreciated that air compressor system 10 may be a no oil type compressor etc., in this case, can have sensor axle sleeve 84, but not machining or can be sealed.

Rear case component 32 can comprise bonnet 90, filler plug 92 and fuel drain plug assembly 94.With reference to figure 4, this bonnet 90 can be formed by suitable material in addition, and for example die casting aluminium or injection plastic can limit cap 100, lubricant entry 102, lubricant outlet 104, bearing hub 106 and ventilation labyrinth (labyrinth) 108.Cap 100 can be configured to cross over and closed after-opening 60a.Lubricant entry 102 can be conduit or the passage that extends through cap 100.In the specific embodiment that provides, lubricant entry 102 comprises collar portion 110 and the pipe portion 112 that is positioned at cap 100 upper surfaces.First end of pipe portion 112 and collar portion 110 fluid interconnections, and the second opposite end of pipe portion 112 can extend to or enter into the inner chamber 62 of seat 50.Lubricant outlet 104 and fuel drain plug assembly 94 can be configured to be called with U.S. Patent Application Serial Number 11/154020, name similar forms in " the liquid storage tank sealing of band fluid level indicating gage ", the disclosure is hereby incorporated by, just as in this sets forth in detail.Ventilation labyrinth 108 can comprise a pair of tapered sidewalls 114a and 114b, a plurality of baffle plate 116 and aeration vent 118, and this aeration vent 118 can be to run through the hole that cap 100 forms.Tapered sidewalls 114a and 114b can limit ventilation spaces jointly with cap 100 and bearing hub 106, and baffle plate 116 and aeration vent 118 are arranged in this ventilation space.Each baffle plate 116 can be incorporated on cap 100 and one of them tapered sidewalls 114a and the 114b, and with tapered sidewalls 114a and 114b in another separate, thereby limit zigzag fashion passage 120.

Back cap packing 34 can comprise perimeter 124, labyrinth lid 126, lubricant entry hole 128 and oiling agent baffle plate 130.Shown in specific embodiment in, back cap packing 34 is integrally formed by the NBR copolymer of high flexible nitrile, high viscosity, but it will be appreciated by those skilled in the art that the back cap packing 34 can form by the composition of two or more separation.For example, O shape circle or an amount of

RTV can be used to form this perimeter 124.Perimeter 124 can be relatively the adjacent portion of back cap packing 34 protrude and the cap 100 that its size can be put into be formed on bonnet 90 on seal groove 132.Labyrinth lid 126 can extend across and suck labyrinth 108, and can include oral pore 134, and when back cap packing 34 was installed to bonnet 90, bearing hub 106 can be close in this inlet opening 134.Pipe portion 112 can run through hole, lubricating oil inlet 128 and extend.It will be appreciated that the pressure in the inner chamber 62 of seat 50 can enter ventilation labyrinth 108 also outside aeration vent 118 by inlet opening 134.It will be appreciated that also the oiling agent of carrying secretly can be collected and be back in the storage tank 36 on baffle plate 116 in the air in ventilation labyrinth 108 of flowing through.In this, the cross hole (not shown) can be formed on the bearing hub 106, so that the oiling agent of discharging from ventilation labyrinth 108 is arranged into bearing hub 106, and lubricated bent axle group 14.Oiling agent baffle plate 130 allows fluid to be communicated with between inner chamber 62 and lubricant outlet 104, and weaken the fluctuation that arrives or leave the oiling agent of fuel drain plug assembly 94, thereby the lubricant level in the inner chamber 62 can more accurately be determined by the sight glass in the fuel drain plug assembly 94 (not illustrating specially).

Fastening piece 136 can pass axle sleeve 138 location in the bonnet 90 and be threaded into the threaded shank hole 68 of seat 50, thereby with rear case component 32 regularly but be attached to removedly on the cylinder seat 40.

The bent axle group

Bent axle group 14 can comprise bent axle 150, first and second bearings 152 and 154, thrust washer 156 and front sliding wheel or follow-up pulley 158.Bent axle 150 can comprise first and second main bearing journals 162 and 164, first and second pin neck 172 and 174, shaft component 176 and the balancer weights 178 respectively.First and second main bearing journals 162 and 164 are arranged on the relative both sides of bent axle 150, and its size is suitable for being received in separately in first and second bearings 152 and 154.First and second bearings 152 and 154 can be the bearings of any type, for example ball bearing or roller bearing, and size is suitable for being received in separately in bearing hub 106 and the annular cover 82, is used to support bent axle 150, and bent axle 150 is rotated in inner chamber 62.Shaft component 176 can run through that front panel 54c extends and is sealed and matched with axle envelope 44 from second main bearing journal 162.Shaft component 176 can dispose in the mode of any requirement, but in the specific embodiment that provides, shaft component 176 comprises tapering part 180 and tapped hole 182.The first and second pin necks 172 and 174 are arranged on the relative both sides of balancer weight 178 and have similar substantially structure.So, also can satisfy the second pin neck 174 to the discussion of the first pin neck 172.The first pin neck 172 can comprise neck 190 and adjacent neck 190 1 sides and be close to the annular flange flange 192 of balancer weight 178.Neck 190 can limit an axis of setovering mutually with the spin axis of bent axle 150.Neck 190 can have relatively large diameter, thereby has bigger cross-section area than the part of shaft component 176, first main bearing journal 162 or bent axle 150 and first main bearing journal 192 and neck 190 interconnection.Balancer weight 178 can be a cylinder base shape shape, is horizontally installed on the spin axis of bent axle 150, make balancer weight 178 part can with first and second pin necks 172 and 174 the part coaxial extensions.Balancer weight 178 can with respect to about 10 ° to the 30 ° angle of axis tilt perpendicular to the spin axis of bent axle 150, in the specific embodiment that originally provides, this angle is 15 °.Gusset 200 can be used for balance support and weigh 178, and wherein this balancer weight 178 leans in the first and second pin necks 172 and 174.The periphery 204 of balancer weight 178 can dispose by this way, makes it stop, reduce or minimize the atomizing of oiling agent in the inner chamber.In the example that provides, the periphery 204 of balancer weight 178 has " sand mold casting " surface (just, non-machining) also round relatively, thereby periphery some part of 204 always is immersed in the oiling agent of inner chamber 62 (just, some of periphery 204 extends partially into liquid lubricant and fills with under the liquid level), and balancer weight 178 does not have which part and the top surface (liquid lubricant is filled with liquid level) of oiling agent to bump.Thrust washer 156 can be used to limit the play of bent axle 150 with respect to the axial end of seat 50.In the example that provides, thrust washer 156 is an elastic washer, and it can put into bearing hub 106 in order to second bearing 154 and bent axle 150 are biased on the front panel 54c of seat 50.

Follow-up pulley 158 can comprise hub portion 210, rim part 212 and a plurality of with the spoke 214 of hub portion 210 with rim part 212 interconnection.Hub portion 210 can comprise through hole 216, and this through hole 216 can comprise supporting tapered portion 218, and this tapered portion 218 is configured to the tapering part 180 of supporting ground engages axle member 176.Threaded fastening piece 220 can insert the through hole 216 of Bellville spring washer 222 and follow-up pulley 158, and is threaded in the threaded hole 182 of shaft component 176, thereby with follow-up pulley 158 regularly but removably be attached on the bent axle 150.Spoke 214 can form in the mode of any requirement, in the embodiment who provides, spoke 214 forms straight blade, when follow-up pulley 158 with predetermined sense of rotation during around the spin axis rotation of bent axle 150, described blade suck air through follow-up pulley 158 towards front panel 54c.Should be appreciated that spoke 214 can form such as the substitute mode of curved vane.Rim part 212 can form in the mode of any requirement, is used for frictionally engages drive band (not shown).In a kind of mode, follow-up pulley 158 is formed by powdery metal material etc. purely, and the outward edge of rim part 212 and through hole 216 do not need machining.

Piston external member group

Piston external member group 16 can comprise a pair of pistons external member 18 and a countercylinder 250.Each piston external member 18 can comprise connecting rod 252, piston or piston dome 254, wrist pin 256, pair of pin plug 258, oil control ring 260 and a pair of compression ring 262.In the specific embodiment that provides, when air compressor system 10 is arranged on operating position (as illustrated in fig. 1 and 2), piston dome 254 is along vertical axis (for example, axis 1001d) to-and-fro motion.

Each connecting rod 252 can comprise crank pin part 270, wrist pin part 272 and be used to interconnect the beam 274 of crank pin part 270 and wrist pin part 272.Crank pin part 270 can limit crank pin hole 280, and its size is suitable for receiving the neck 190 of corresponding that first and second pin neck 172 and 174.Wrist pin part 272 can limit wrist pin opening 282, and its size is suitable for receiving a corresponding wrist pin 256.Crankpin part 270 and wrist pin part 272 can be integrally formed with beam 274, and can distinguish and arrive bearing surface 284 and 286 continuously or almost continuously.Crankpin part 270 and wrist pin part 272 can be around the center line center symmetries of connecting rod 252 longitudinal extensions.Crank pin part 270 and wrist pin part 272 side 300 and 302 separately can be along with inwardly reducing gradually to the direction near the center line of connecting rod 252 longitudinal extensions to the growth of beam 274 distances.Such structure can make the quality minimum of connecting rod 252 in the intensity of keeping connecting rod 252 and bearing surface 284 and 286 in the surface area at important area.In the embodiment who provides, transverse groove 306 is formed on the bearing surface 284 and 286 of crank pin part 270 and wrist pin part 272.More particularly, a transverse groove 306 is formed on facing to the crank pin part 270 on the end of beam 274, and another one transverse groove 306 is formed on the wrist pin part 272 of the end of contiguous beam 274.Transverse groove 306 is used for oil is remained on interior (bearing) surface of crank pin part 270 and interior (bearing) surface of wrist pin part 272.

With reference to figure 5 to 7, each piston dome 254 can comprise first main body portion 320 and second main body portion 322.First main body portion 320 can limit upper surface 324 and annular sidewall 326, upper surface 324 can configuration to the part of knowing of cylinder head group 20, annular sidewall 326 comprises first, second and the 3rd annular groove 330,332 and 334.The hole 336 that extends radially inwardly can be formed near the periphery of first main body portion 320.The hole 336 that extends radially inwardly can be intersected with the 3rd annular groove 334.Second main body portion 322 can be incorporated into first main body portion 320, and comprises the first and second annular sidewall parts 340 and the 342 and first and second connecting wall parts 344 and 346.The first and second annular sidewall parts 340 and 342 can with a planar alignment, connecting rod 252 (Fig. 2) pivots and to-and-fro motion in this plane.The first and second annular sidewall parts 340 and 342 size can be consistent with the size of annular sidewall 326.The first and second connecting wall parts 344 and 346 can be set to pivot therein and reciprocating planar quadrature with connecting rod 252 (Fig. 2), and interconnect with the first and second annular sidewall parts 340 and 342.The first and second connecting wall parts 344 and 346 can be separated from each other, makes that the distance between the first and second connecting wall parts 344 and 346 is less than the distance on the direction of the first and second annular sidewall parts 340 and 342 in this plane on perpendicular to the direction on plane.In the specific embodiment that provides, the first and second connecting wall parts 344 and 346 comprise outer surface 350, and when piston external member 18 (Fig. 2) was installed to bent axle 150 (Fig. 2), this outer surface 350 was arranged essentially parallel to this plane.Piston pin hole 352 passes the first and second connecting wall parts 344 and 346 and forms being substantially perpendicular on the direction on this plane.Lubrication groove 354 can be formed on the first and second connecting wall parts 344 and 346.Lubrication groove 354 can be set to substantially parallel and crossing piston pin hole 352.The first and second connecting wall parts 344 and 346 lower surface 356 can be arcs.

Further with reference to figure 2 and 3, the wrist pin part 272 of connecting rod 252 is between the first and second connecting wall parts 344 and 346, and wrist pin opening 282 is aimed at piston pin hole 352.Wrist pin 256 can be hollow cylindrical structural, and it can receive and insert in piston pin hole 352 and the wrist pin opening 282, thereby piston dome 254 is attached on the connecting rod 252.Pin plug 258 can be made by suitable flexible and/or flexible material, and plastics for example, pin plug 258 can comprise neck 370 and the diameter cap portion 372 greater than neck 370 and wrist pin 256.Neck 370 can receive wrist pin 256 and frictionally engage with wrist pin 256.The cap portion 372 of pin plug 258 and the contact between first, second connecting wall part 344 and 346 can limited piston pin 256 with respect to the motion of piston dome 254.Compression ring 262 and oil control ring 260 can make up in the mode of knowing in the state of the art, so need not further to discuss these parts.Compression ring 262 can be installed in first and second annular grooves 330 and 332 of piston dome 254, and oil control ring 260 can be installed in the 3rd annular groove 334.

With reference to figure 2 and 3, each cylinder 250 can comprise cylinder block 400 and the cylinder flange 402 that extends around cylinder block 400 peripheries.Cylinder 250 can be integrally formed by the material that requires, cast iron for example, and can be with mode heat treatment, grinding and the optionally honing that requires.It will be appreciated that other material can be used for cylinder 250, aluminium for example, different surface treatments can be used for the performance (for example, hardness, wearability) of surface (for example, internal surface) so that requirement to be provided of cylinder 250.Cylinder block 400 is configured to insert the counterbore 58 of a corresponding cover plate 56, and cylinder flange 402 is configured to the bottom near a corresponding counterbore 58.Those skilled in the art it will be appreciated that, because in the cylinder 250 recessed seats 50, cylinder 250 is direct air cooling unlike traditional Consumer and professional air compressor system.

Cylinder block 400 can limit piston hole 410, can intersect the inside chamfering 412 and the outer surface 414 of piston hole 410 at cylinder flange 402 opposition sides, the profile of this outer surface 414 constitutes, when oiling agent is back to the bottom of inner chamber 62, collect oiling agent and control flow of lubricant from outer surface 414.For example, outer surface 414 can comprise one or more in the mode that requires for example from the runner 420 of cylinder flange 402 downward spiral spiralizations, yet, it will be appreciated that, runner 420 can form in the mode of any requirement, and can comprise one or more helixes, one or more cross recesses (Fig. 7 A), one or more grooves (Fig. 7 B) that are parallel to the 18 reciprocating axis extensions of piston external member, one or more (for example being across, be concentric with) extending flute (Fig. 7 C) of piston external member 18 reciprocating axis, one or more grooves (Fig. 7 D), and their mixing around the axis spiral extension that is across piston external member 18 reciprocating axis.Runner 420 can provide the surface area (with respect to the similar cylinder that constitutes flat outer surface) of increase for cylinder 250.And, when can collecting bent axle 150 rotation, runner 420 upwards thrown the oiling agent of cylinder head group 20 by the balancer weight 178 of bent axle 150, and the oil of collecting is flowed above outer surface 414 in a predetermined manner.The oil that flows in outer surface 414 tops is collected heat from cylinder block 400 before can getting back to (falling from cylinder 250) storage tank 36 at oil.Further with reference to figure 8, cylinder 250 can comprise endless belt 430 and the 430 annular lips 432 that inwardly are provided with in the endless belt on every side.Piston hole 410 can have the size that receives a corresponding piston external member 18, thereby piston dome 254 is received in wherein slidably, and compression ring 262 and oil control ring 260 join on the internal surface 410a of cylinder 250.Should be appreciated that compression ring 262 and oil control ring 260 can expansions around piston dome 254, when piston external member 18 is received in piston hole 410, they by path cylinder to inside compression.The size of inner chamfering 412 can become, and when piston external member 18 was inserted cylinder 250, inner chamfering 412 assist location piston domes 254 were to piston hole 410, and compression compression ring 262 and oil control ring 260.

Though so far countercylinder 250 is described, for example comprise cylinder block 400 with one or more integrally formed runners 420, it will be appreciated that runner 420 can form respectively and be fitted on the remaining part of cylinder block 400.For example, the structure (not shown) that forms runner 420 can be such as helical spring structure, and it is fitted to the outside of cylinder block 400 remaining parts.Can in any suitable manner this structure be fixed in cylinder block 400 remaining parts, for example by friction or stationary fit; One or more fastening pieces, welding, bonding, gluing; This structure directly is locked to cylinder block 400 remaining parts; And/or their combination.

Also it will be appreciated that, although so far described cylinder 250 comprises the cylinder flange 402 integrally formed with cylinder block 400,, this cylinder 250 can be formed by two or more separated components.In the example of Fig. 8 A, cylinder 250 ' comprises main body 400 ' and receives the flange 402 ' that extends among main body 400 ' the groove 402g on every side.Flange 402 ' can be a clasp, and it receives among the groove 402g removedly.Cylinder Sealing 500 can be in abutting connection with flange 402 ' and the annular surface 58b of counterbore 58 in the bottom surface 502a of outer surface 432b, the cap assemblies 502 of engagement annular lip 432 and the cover plate 56 hermetically.Such structure allows before bent axle 14 being installed to seat 50 cylinder block 400 ' and piston external member 18 to be installed on the bent axle 14.Cylinder block 400 ' can be pushed through cover plate 56 and expose groove 402g there.Cylinder flange 402 ' can be installed among the groove 402g, and cylinder 250 ' can press downward in the seat 50, makes cylinder flange 402 ' seating in the bottom surface of counterbore 58.

The cylinder head group

Cylinder head group 20 can comprise a countercylinder Sealing 500, cap assemblies 502, a plurality of bonnet bolt 518 and filtration system 520.Cap assemblies 502 can comprise valve plate 504, a pair of suction valve element 506, a pair of packing ring 508 and a pair of threaded fastening piece 510, lid 512, a pair of expulsion valve element 514 and a cap Sealing 516.

Each cylinder Sealing 500 can be O shape circle or other suitable Sealing, can be engaged in a corresponding cylinder 250, cap assemblies 502 and cylinder seat 40 hermetically.In the specific embodiment that provides, this cylinder Sealing 500 is received in (that is to say, be engaged in the outer surface of annular lip 432 hermetically) around the annular lip 432 and the ring surface 58b of counterbore 58 in the bottom surface 502a of endless belt 430, cap assemblies 502 and the cover plate 56 hermetically.Annular lip 432 can dwindle gradually to form inverted-cone shape (that is to say that the surface of the annular lip 432 of 500 sealing engagement of cylinder Sealing can be inverted cone).The structure that should be understood that this mode from the disclosure can prevent the annular lip 432 of cylinder Sealing 500 in assembling air compressor system 10 (Fig. 1) process " roll from ".

Valve plate 504 can comprise flat basically body portion 530, the first inlet hole group 532, the first tap hole group 534, the first locator protrusions group 536, the second inlet hole group 538, the second tap hole group 540 and the second locator protrusions group 542.Body portion 530 can limit a plurality of cap bolts hole 544 and a pair of fastener hole 546.The second inlet hole group 538, the second tap hole group 540 and the second locator protrusions group 542 can be identical with the first inlet hole group 532, the first tap hole group 534 and the first locator protrusions group 536 respectively.Further can be around a corresponding fastener hole 546 with predetermined patterned arrangement with reference to figure 9, the first inlet hole groups 532 and the first tap hole group 534.The first locator protrusions group 536 can comprise the passage shape projection 550 of extending from first side 552 of body portion 530.This passage shape projection 550 can form in any suitable manner, for example welding, but in the specific embodiment that provides, this passage shape projection 550 is made by the shape of definite body portion 530 and the fine blanking operation of size simultaneously.Form cap bolt hole 544, fastener hole 546, the first inlet hole group 532, the first tap hole group 534, the second inlet hole group 538, the second tap hole group 540 and the second locator protrusions group 542.Be different from formation, need understand tunnel-shaped projection 550 and just partly shear from the body portion 530 of valve plate 504 by the various holes of valve plate 504.If necessary, before assembling air compressor system 10, can carry out trimming to the one or both sides of the first inlet hole group 532, the first tap hole group 534, the second inlet hole group 538 and the second tap hole group 540 and handle.

Each suction valve element 506 can be formed by suitable material, spring steel for example, and can comprise valve component body 560 and a plurality of discrete element member 562 that is attached to valve component body 560.Hole 564 can be by running through valve component body 560 formation that its size is suitable for receiving a corresponding threaded fastening piece 510.

With reference to figure 3 and 10, lid 512 can limit low-pressure cavity 580, hyperbaric chamber 582, a plurality of cap bolt axle sleeve 584, sealing flange 586, can be connected to the suction port 588 of filtration system 520 and can be connected to the exhaust port 590 of storage tank (not shown) with the fluid mode of communicating with the fluid mode of communicating.Low-pressure cavity 580 can be isolated with hyperbaric chamber 582 and is connected to suction port 588 with the fluid mode of communicating, and hyperbaric chamber 582 can be connected to exhaust port 590 with the fluid mode of communicating.A pair of valve pocket 600 can be integrally formed with lid 512, and be positioned in the hyperbaric chamber 582.Each valve pocket 600 can comprise a plurality of legs 602, these legs 602 can require with the first and second tap hole groups 534 and 540 in be used to keep a corresponding expulsion valve element 514 on the direction of an aligning being associated.Cap bolt axle sleeve 584 can be configured to be used to receive cap bolt 518, and can be positioned at cover 512 with the relative position of cap bolt hole 544 on the valve plate 504.Sealing flange 586 can be arranged on around the lid 512 in the cap bolt axle sleeve 584, and extends between low-pressure cavity 580 and hyperbaric chamber 582.In the specific embodiment that provides, form the seal groove 606 that can receive in the cap Sealing 516 in the sealing flange 586.

Cap assemblies 502 can be assembled as follows:

A) as shown in figure 10, place and cover 512, make sealing flange 586 towards the package technique personnel;

B) as shown in figure 10, cap Sealing 516 is installed in the seal groove 606;

C) as shown in figure 11, expulsion valve element 514 is installed in the valve pocket 600;

D) as shown in figure 12, valve plate 504 is covered in covers on 512, make expulsion valve element 514 (Figure 11) align with the first and second tap hole groups 534 and 540, cap bolt axle sleeve 584 (Fig. 3) aligns with cap bolt hole 544, and fastener hole 546 is alignd with the respective threads hole 610 (Figure 11) of lid 512;

E) suction valve element 506 is installed on the valve plate 504, makes valve component body 560 remain in the passage shape projection 550, and alignd with fastener hole 546 (Figure 12) in hole 564;

F) fastening piece 510 (Fig. 3) is assembled on the packing ring 508 (Fig. 3), and with fastening piece 510 by a corresponding hole 564 (Figure 13) and a corresponding fastener hole 546 (Figure 12), fastening piece 510 (Fig. 3) is threaded onto covers 512 threaded hole 610 (Figure 11), suction valve element 506 and valve plate 504 are remained to the clamping force of covering on 512 thereby produce.

Those skilled in the art need to understand, and above-mentioned number of assembling steps of the present disclosure is in fact exemplary, and these steps need not carried out with the order of herein strictness.Except or replace passage shape projection 550, suction valve element 506 can spot weld on the valve plate 504.

Cap assemblies 502 can cover on seat 50 and the cylinder 250, and cap bolt 518 can receive in the cap bolt axle sleeve 584 and be threaded into threaded cap bolt hole 60, so that cylinder Sealing 500 is joined on the valve plate 504 hermetically.

Get back to Fig. 3, filtration system 520 can comprise filtering box 650, filtration liner 652, a plurality of fastening piece 654, filter element 656 and filtering cover 658.Filtering box 650 can be container-like structure, and it has opening front 660, flange 662 and is attached to the outlet 664 of the suction port 588 (Figure 10) that covers in 512.Filtration liner 652 can be arranged between filtering box 650 and the suction port 588 (Figure 10), to seal the interface between them.Fastening piece 654 can allow with filtering box 650 regularly but removably be attached to and cover on 512.Filter element 656 may be received in the filtering box 650, and can have the seal element 670 that flange 662 and filtering cover 658 are engaged hermetically.Filtering cover 658 can be fixed in the filtering box 650 in any mode easily, for example, by can with one or two integrally formed fastening pieces or the resilient snap connector in filtering cover 658 and the filtering box 650.Filtering cover 658 can limit a plurality of openings, and when air compressor system 10 operations, fresh air can suck by these openings.

Operation

With reference to figure 2 and 3, the storage tank 36 of air compressor system 10 can inject the liquid lubricant of suitable liquid level, rotary driving force can offer bent axle 150 (by follow-up pulley 158) with turning crankshaft 150, and makes piston dome 254 to-and-fro motion in piston hole 410.When peripheral part 204 left liquid lubricant in the storage tank 36, liquid lubricant adhered to the balancer weight 178 of rotation.The liquid lubricant of this adhesion can throw away from balancer weight 178 owing to the centrifugal force before the liquid lubricant of those part peripheries 204 in entering storage tank 36 once more of balancer weight 178.As mentioned above, balancer weight 178 is constructed by this way, makes that the impact of liquid lubricant upper surface reduces, minimizes or eliminates in 178 pairs of storage tanks 36 of balancer weight, thereby reduces, minimizes or eliminate the atomizing of oiling agent.Correspondingly, balancer weight 178 is used for liquid lubricant upwards is assigned to the internal surface 410a (Fig. 8) of outer surface 414, piston external member 18 and the piston hole 410 of cylinder 250.As mentioned above, the liquid lubricant on cylinder 250 outer surfaces 414 can flow along the runner 420 on cylinder 250 peripheries and length direction before being back to storage tank 36, thereby absorbed heat from cylinder 250.The heat of liquid lubricant can be sent to seat 50 in the storage tank 36.Cooling fin 70 on seat 50 outsides can promote conduction and radiative heat exchange, thereby ejects the heat from air compressor system 10.In addition, air source motion or compression, the spoke 214 as blade of follow-up pulley 158 for example can be used for air stream is aimed at seat 50, thus by the convection current promotion to discharge from the heat of air compressor system 10.Importantly, air compressor system 10 can tilt one to reach 20 ° angle and not allow piston external member group 16 lack lubricant oil with respect to horizontal axis.

Those skilled in the art will understand from the disclosure, the plate-like balancer weight 178 that tilts has increased running torque along the spin axis of bent axle 150, sells the rotation of necks 172 and 174 and the running torque that to-and-fro motion produced of piston external member 18 in order to balance by first and second.The trimming moment value that needs can be by selecting balancer weight 178 thickness and balancer weight 178 reach with respect to the two the combination of the angle of bent axle 150 spin axiss.The balancer weight 178 of relative thin can be provided with the big relatively angle with respect to bent axle 150 spin axiss, to reach the identical moment that the balancer weight 178 that illustrates is had in respective drawings.Be used to reduce the gross weight (and cost) of bent axle 150 in balancer weight 178 that require to select relative thin in some cases (with the angle of inclination of relative big balancer weight 178), increase simultaneously and can be balanced heavy 178 oil that throw away area in one's power with respect to bent axle 150 spin axiss.

Should be understood that instruction of the present disclosure is applied to and the bent axle with varying number pin neck described above.For example, the bent axle 150 ' of single-cylinder air compressor (not shown) as shown in FIG. 13A.In the illustrated embodiment, bent axle 150 ' comprises the first and second main bearing necks 162 and 164, pin neck 172 ', shaft component 176 and balancer weight 178 ' respectively.

Get back to Fig. 2 and 3, when the piston dome 254 in the cylinder 250 during towards the downward translation of bent axle 150, produce pressure reduction in the piston hole 410, this pressure reduction causes that the element member 562 (Fig. 9) of suction valve element 506 departs from valve plate 504, thereby makes fresh air can pass through a corresponding suction in the first and second suction port groups 532 and 538.Seating valve plate 504 and piston dome 254 are towards valve plate 504 upwards during translation again when element member 562 (Fig. 9), and the air in the piston hole 410 is compressed.When the air in the piston hole 410 is compressed to predetermined pressure, pressurized air can make corresponding expulsion valve element 514 depart from valve plate 504, thus make the air that compressed can by in the first and second tap hole groups 534 and 540 corresponding one be passed in the hyperbaric chamber 582.In the embodiment who provides, the pressurized air that air compressor system 10 is configured to provide elevated pressures with single-stage pump (for example, 200p.s.i.g.).

Safeguard

It will be understood by those skilled in the art that the liquid lubricant in the storage tank 36 needs periodic replacement.This maintenance for convenience can be adopted and use oil vessel 700.This can be formed by the suitable plastic film with oil vessel 700, and can comprise that one and many cohesive material bands 702 are with 704 with unclamping.Can be (for example, the opening) of opening that the opening end 706 with oil vessel 700 can place 90 times adjacent row plug cocks of bonnet assembly, 94 places with first hand of technician with oil vessel 700.Technician's other one, second hand is used for the side pressure with oil vessel 700 is come to fuel drain plug assembly 94, thereby the technician can remove fuel drain plug assembly 94 with second hand from bonnet 90.Should be understood that second hand is not directly to touch fuel drain plug assembly 94, is formed at the plastic film of using oil vessel 700 1 sides but be provided with one deck between second hand of fuel drain plug assembly 94 and technician.Like this, this plastic film forms the barrier that is interspersed between technician and the seat 50, thus when with fuel drain plug assembly 94 when bonnet 90 is removed, the technician can not be exposed to leave 50 use lubricating fluid.When fuel drain plug assembly 94 reinstalled to bonnet 90, this barrier can keep.After this, can remove to unclamp from cohesive material 702 and be with 704, itself can fold up with oil vessel 700 with sealed open end 706.

In some embodiments, can comprise the reinforcer (not shown) that can in interim substrate, be fixed on the bonnet with oil vessel 700, thereby the technician need not use oil vessel 700 in liquid lubricant gripping from the whole interval that air compressor system 10 is discharged.For example, the hole (not shown) can be formed on the reinforcer, and the fastening piece (not shown) may be received in this hole and is threaded on the bonnet 90 in the (not shown) of respective threads hole, thereby will be installed on the bonnet 90 with oil vessel 700.

In the example of Fig. 2 A, bonnet 90c comprises hook 2000, for example is arranged at oiling agent exhaust port 104 truncated cone projection 2002 on every side.Used oil vessel 700 ' can comprise the circular port 2004 that can cooperate around truncated cone projection 2002, thus when liquid lubricant when air compressor system is discharged, permission will be hanging on the hook 2000 with oil vessel 700 '.

Assembling method

Air compressor system can be assembled with following steps:

A) axle envelope 44 is installed on the annular port 82 of seat 50;

B) locating stud 42 is installed in the pin-and-hole 66;

C) the built-up piston external member 18;

D) first and second bearings 152 and 154 are respectively installed on first and second main bearing journals 162 and 164;

E) first of piston external member 18 can be installed on the bent axle 150, make shaft component 176 put into crank pin hole 280, piston external member 18 moves along bent axle 150, navigates to until the crank pin part 270 with connecting rod 252 on the neck 190 of the first pin neck 172;

F) bent axle 150 is inserted in the inner chamber 62 of seat 50, make shaft component 176 extend through and engages axle envelope 44 hermetically;

G) second with piston external member 18 is installed on the bent axle 150, make second main bearing journal 164 receive in the crank pin hole 280, piston external member 18 moves along bent axle 150, navigates to until the crank pin part 270 with connecting rod 252 on the neck 190 of the second pin neck 174;

H) each cylinder 250 is aimed at and inserted wherein with a corresponding counterbore 58 of seat 50, simultaneously a corresponding piston dome 254 is received in the cylinder 250;

I) back cap packing 34 is assembled on the rear case component 32;

J) back cap packing 34 and rear case component 32 are installed and are fixed on the seat by locating stud 42;

K) cylinder Sealing 500 is installed on the annular lip 432 (Fig. 8) of cylinder 250;

1) cap assemblies 502 is installed in cover plate 56 tops, makes cap bolt axle sleeve 584 aim at threaded cap bolt hole 60, then fastening, cap assemblies 502 is fixed on the seat 50;

M) follow-up pulley 158 is installed to shaft component 176 tops, and is installed on the bent axle 150 with threaded fastening piece 220 and Bellville spring washer 222.

Those skilled in the art are understood that from the disclosure above-mentioned number of assembling steps comes down to exemplary, and these steps do not need to carry out as the order of determining of narration herein.For example, first and second bearings 152 and 154 can be installed to bent axle 150 again after piston external member 18 is installed to the first and second pin necks 172 and 174 earlier.And, should be understood that seat 50 first portions at assembling process can be in an orientation, the remaining part at assembling process is in the another one orientation thereafter.For example, seat can have such orientation, and in (h), the spin axis of bent axle 150 is in vertical orientations, thereafter, makes bent axle 150 be in level orientation in step (a).

Though the air compressor system 10 that has illustrated and described is aimed at special coaxial twin cylinder configuration, but, those skilled in the art will notice, air compressor system according to constructed of the present disclosure can be constructed as other form, and can have the number of cylinders of any requirement.For example, air compressor system can be constructed as has two cylinders, they can orientate the direction of any requirement as, for example shown in Figure 14 and 15 with respect to vertical axis (when air compressor system 10a is positioned at operation during the orientation) inclination 45, thereby piston external member 18a to-and-fro motion along an axle 1001e 90 ° of angles that are separated by.Piston external member group 16a also can comprise the piston upper shield 1000 around the outer surface 414a that is coupled to cylinder 250a.In addition referring to figures 16 to 18, runner 420a can be formed on the outer surface 414a with the cutter processing angle 1001a that becomes to require with respect to piston dome 254 reciprocating axis 1001b again.On the contrary, runner 420 shown in Figure 2 is to form with the cutter processing angle 1001C perpendicular to the axis of piston dome 254 translations.In the specific embodiment that provides, runner 420a forms with respect to the angle (for example, being 45 ° in the example that provides) that vertical axis was tilted with cylinder, however, it should be understood that, also can adopt other angle.For example, runner can be orientated the direction along vertical axis as, even cylinder tilts with respect to this vertical axis.Cylinder upper shield 1000 can be formed by suitable plastic or stalloy, and can comprise the annular lip 1002 of abut against cover 56a, flows down from the oil duct 1004 of seat 50a to allow oil.In the specific embodiment that provides, send into by seat 50a from the pressure oil of oil pump (not shown), and enter the chamber 1006 that between annular lip 432 and cover plate 56a, limits from oil duct 1004 discharges.When liquid lubricant when the outer surface 414a of cylinder 250a down discharges, cylinder upper shield 1000 can remain on liquid lubricant among the runner 420a.

Do not adopt in the air compressor system of oil pump at those, annular lip can be spaced apart with cover plate 56a and cylinder flange 402a, and be configured to be used to catch the liquid lubricant that down splashes down from cylinder head group 20a.Selectively, a side that is arranged at the cylinder upper shield 1000 of cylinder 250a vertical direction can be punched, so that can collect the oiling agents that splash down relatively in runner 420a more.

It will be understood by those skilled in the art that runner can and form on the outer surface with the angle that becomes to require with the axis on piston dome to-and-fro motion institute edge, though when the piston dome along the vertical axis to-and-fro motion.The configuration of this mode can keep the cup-shaped cross section of more oiling agents relatively for runner provides.

Get back to Figure 14, the air compressor system 10a of this example can be configured to make the shaft component 176 of bent axle 150 to run through bonnet 90a extension.It will be understood by those skilled in the art that bearing hub 106 (Fig. 2) can form on the front panel 54c ' of present 50a, and axis hole 80a and annular cover 82a can be formed on the bonnet 90a, thereby be convenient to the reverse installation of bent axle 150.Bonnet 90a can extend and be used as the mounting plate of electric motor assembly 1020 a little.In this respect, bonnet 90a can comprise the motor assembly department 1022 with output shaft hole (not specifically illustrating) and a plurality of motor mounting hole (not specifically illustrating).Bonnet 90a can be as with electric motor assembly 1020 and seat 50a directly or be attached to the erecting device of gas holder by the framework that is attached to the gas holder (not shown).

Electric motor assembly 1020 can comprise electric motor 1030, motor pulley 1032, fan 1034, Bellville packing ring 1036 and threaded fastening piece 1038.Should understand, fan 1034 can be used to produce cooling air flow, its be 7131824 to U.S. Patent number, name is called " wheeled portable air compressor " similar mode cooling air compressor, the disclosed content of the document is hereby incorporated by, as describing in detail herein.With reference to Figure 19, electric motor 1030 can dispose traditionally in addition, and can comprise motor casing 1040 and output shaft 1042.Motor casing 1040 can be fixed on the motor assembly department 1022 on bonnet 90a one side, and a seat 50a is attached on the bonnet.A plurality of threaded fastening pieces 1046 can insert in the motor mounting hole 1048 and engage with the respective aperture 1050 that forms on the motor casing 1040, thereby with electric motor 1030 regularly but be attached to removedly on the bonnet 90a.Output shaft 1042 can run through output shaft hole 1052 and extend, and can comprise the tapered end 1054 that wherein is formed with threaded hole 1056.

Motor pulley 1032 can be formed by agglomerated powder powder metallic material, and can comprise hub portion 1060 and the rim part 1062 that can interconnect with the mode and the hub portion 1060 of any requirement.Identical with follow-up pulley 158, the outer surface that motor pulley 1032 can be configured to need not rim part 1062 carries out machining.Hub portion 1060 can comprise through hole 1070, and this through hole 1070 can comprise the coupling tapered portion 1072 that can engage with tapered end 1054 couplings of output shaft 1042.Fan 1034 can be formed by plastic materials, and has the hub 1080 of band mounting hole 1082.The mode that this hub 1080 can navigate to the spin axis with fan 1034 on the spin axis of motor pulley 1032 is installed (for example, interlock) hub portion 1060 tops to motor pulley 1032.The spin axis that the tapered portion 1072 that it will be understood by those skilled in the art that tapered end 1054 and coupling can be cooperated motor pulley 1032 aligns with the spin axis of output shaft 1042.The diameter of the mounting hole 1082 of fan 1034 can be than the through hole 1070 of motor pulley 1032 relatively large.Threaded fastening piece 1038 can be inserted in the Bellville packing ring 1036 and with threaded hole 1056 threaded joint of output shaft 1042; Bellville packing ring 1036 can be oriented and contact with the head of threaded fastening piece 1038 and the hub 1080 of fan 1034 (rather than motor pulley 1032) at first.Threaded fastening piece 1038 can be tightened, and makes the central offset of Bellville packing ring arrive and the head of threaded fastening piece 1038, the hub 1080 of fan 1034 and the hub portion 1060 direct position contacting of motor pulley 1032.Correspondingly, the first portion of understanding the clamping force that is produced by threaded fastening piece 1038 directly is sent on the motor pulley 1032, the second portion of the clamping force that is produced by threaded fastening piece 1038 is sent on the hub 1080 of fan 1034, so that fan 1034 is fixed on the motor pulley 1032.Advantageously, the periphery of Bellville packing ring 1036 is in fact as spring, thereby, although hub 1080 thickness of fan 1034 owing to creep changes, can be kept a desirable clamping force that acts on fan 1034.

Those skilled in the art will understand from the disclosure, the output shaft 1042 of the rotation centerline of bent axle 150 and electric motor 1030 can be kept desired spacing owing to the configuration of bonnet 90a, and the position of the axis of follow-up pulley 158 and motor pulley 1032, because desired relation also can be kept in the size and the position of different conical surfaces on bent axle 150, follow-up pulley 158, output shaft 1042 and the motor pulley 1032.Correspondingly, fan belt 1090 for example " stretches band ", can be used for transmitting rotation electric power to bent axle 150 from electric motor 1030.Fan belt 1090 can be assembled on motor pulley 1032 and the follow-up pulley 158, and motor pulley 1032 and follow-up pulley 158 can be respectively installed on electric motor 1030 and the bent axle 150 simultaneously.When being installed to motor pulley 1032 on the output shaft 1042, tapered end 1054 and coupling tapered portion 1072 can be cooperated with the spin axis with the spin axis alignment output shaft 1042 of motor pulley 1032.Similarly, the tapered portion 218 of tapering part 180 and coupling can be cooperated with the spin axis with the spin axis alignment bent axle 150 of follow-up pulley 158.The synchronous installation of motor pulley 1032 and follow-up pulley 158 and fan belt 1090 are preloaded onto the combination of motor pulley 1032 and follow-up pulley 158 along the coupling tapering between axle (tapered end 1054 and tapering part 180) and the pulley (motor pulley 1032 and follow-up pulley 158), fan belt 1090 is stretched when allowing pulley is installed.

Band guard shield 1100 can be installed to bonnet 90a and go up with Masking strip 1090.Band guard shield 1100 can be further used for the air stream with fan 1034 generations, with be 11/047521 to U.S. Patent number, name is called " the cooling configuration of portable air compressor " similar mode, bonnet 90a and/or seat 50a directly lead, the disclosed content of the document is hereby incorporated by, as describing in detail herein.And band guard shield 1100 can comprise chamber 1102, and lid 1104 can be stung and be fitted on the band guard shield 1100 with closed cavity 1102.The Sealing (not shown) can be arranged at band guard shield 1100 and cover between 1104, enters chamber 1102 to stop dirt and aqueous vapor.The size in chamber 1102 can receive owner's handbook (not shown) and/or be the suite of tools (not shown) of air compressor system 10a service.

In the embodiment who provides, filtration system 520a can comprise that also fluid is connected to the inlet duct 1200 of the low-pressure cavity 580a that covers 512a.Filtration system 520a can be 5137434 to U.S. Patent number, name is called " general motor oil-free air compressor " similar mode and constructs and operate, the disclosed content of the document is hereby incorporated by, as describing in detail herein.The far-end 1204 of inlet duct 1200 is arranged at from the stream of the air of fan 1034 discharges, and its direction is this air flow path laterally.Far-end 1204 can curl or be depressed into the angle of requirement, enters inlet duct 1200 to stop relatively large particle or chip.When air compressor system 10a moves, the airborne dirt that is included in fluid passage and chip can be with the far-end 1204 of relative higher speed by inlet duct 1200, like this, their momentum has reduced them and has been inhaled into the possibility of the far-end 1204 of inlet duct 1200.

Although concrete example is described in explanation and accompanying drawing,, it will be understood to those of skill in the art that do not breaking away under the disclosure such as claims restricted portion, can carry out different distortion and substitute its element with equivalent.And, the mixing of the feature between the different instances, element and/or function and coupling are at this expectability, thereby those skilled in the art will find out obviously from the disclosure that the feature of an example, element and/or function can combine with another example, unless above other description is arranged.And, under the situation of the essential scope that does not break away from instruction of the present disclosure, a plurality of distortion can be arranged to adapt to special situation.Therefore, the disclosure be not limited to adopt in order to launch instruction of the present disclosure as best mode, by the described specific embodiment of the drawings and specific embodiments, the scope of the present disclosure will comprise any embodiment within top description and the following claim book scope.

Claims (30)

1, a kind of air compressor is characterized in that, comprising:

Cylinder seat group with cover plate, this cylinder seat group limits inner chamber, and at least a portion of inner chamber forms storage tank, and storage tank is configured to receive oiling agent, makes oiling agent be arranged on liquid lubricant and fills with under the liquid level;

Can be rotatably set in the bent axle in the inner chamber;

Piston external member group with cylinder and piston external member, cylinder receives and limits piston hole by cover plate, the cylinder external surface peripheral forms at least one cooling channel, the piston external member comprises piston, wrist pin and connecting rod, piston is received in the piston hole slidably, wrist pin is connected to piston on first end of connecting rod, and second end of connecting rod is attached on the bent axle; With

Member with the bent axle associated, this member moves in storage tank, at least a portion of member is filled with liquid level across liquid lubricant when making crankshaft rotating, member is suitable for from the storage tank oiling agent of outwards dishing out, make the first portion of the oiling agent dish out accumulate in piston hole and the piston at least one, with the interface between lube pistons and the cylinder, the second portion of the oiling agent of dishing out accumulates at least one cooling channel, and move around the outer surface of cylinder at least in part, thereby absorb heat from cylinder according to the gravity that applies;

Wherein, air compressor does not comprise and is used for the lubricating pump of pumping oiling agent with lube pistons group and bent axle.

2, air compressor according to claim 1 is characterized in that, described at least one cooling channel forms with spiral fashion.

3, air compressor according to claim 2 is characterized in that, the helix of described at least one cooling channel has the axis that coincides with the piston hole longitudinal axis.

4, air compressor according to claim 2 is characterized in that, the helix of described at least one cooling channel has the axis transverse to the piston hole longitudinal axis.

5, air compressor according to claim 2 is characterized in that, described at least one runner is formed in the outer surface along cutter processing axis, and this cutter processing axis orientation is the axis of the helix of horizontal at least one cooling channel.

6, air compressor according to claim 1 is characterized in that, described at least one runner is formed in the outer surface along cutter processing axis, and this cutter processing axis is substantially perpendicular to the axis of the helix of at least one cooling channel.

7, air compressor according to claim 1 is characterized in that, described cylinder comprises cylinder block and the cylinder flange that extends radially outwardly from cylinder block, and cylinder flange is received in the counterbore that is formed in the cover plate.

8, air compressor according to claim 7 is characterized in that, described chamfering is formed in the end Shanghai Automobile Factory cylinder body facing to the cylinder block of cylinder flange, and this chamfering intersects piston hole.

9, air compressor according to claim 1 is characterized in that, described member comprises the balancer weight part of bent axle.

10, air compressor according to claim 1 is characterized in that, the size of described member become no matter the rotational position of bent axle how, at least a portion of member is arranged in the oiling agent of storage tank.

11, air compressor according to claim 1 is characterized in that, also comprises the cylinder upper shield that joins on the cylinder, and this cylinder upper shield covers at least a portion of this cylinder outside at least in part.

12, air compressor according to claim 1 is characterized in that, described air compressor has operative orientation, and piston is along vertical piston axis to-and-fro motion.

13, air compressor according to claim 1 is characterized in that, described air compressor has operative orientation, and piston is transversely in the axis to-and-fro motion of vertical axis.

14, air compressor according to claim 1, it is characterized in that a plurality of grooves or at least wherein two combination that described at least one cooling channel is formed with a plurality of crossed grooves, be parallel to a plurality of parallel slots that the axis on reciprocating motion of the pistons institute edge extends, extend transverse to the axis on reciprocating motion of the pistons institute edge.

15, a kind of air compressor is characterized in that, comprising:

Cylinder seat group with cover plate, this cylinder seat group limits inner chamber, and at least a portion of inner chamber forms storage tank;

Can be rotatably set in the bent axle in the inner chamber;

Be arranged on the oiling agent in the storage tank;

Piston external member group with cylinder and piston external member, cylinder receives by cover plate and limits piston hole, and the piston external member comprises piston, wrist pin and connecting rod, and piston is received in the piston hole slidably, wrist pin is connected to piston on first end of connecting rod, and second end of connecting rod is attached on the bent axle; With

Member with the bent axle associated, component movement is by the oiling agent in the storage tank, thereby from the storage tank oiling agent of outwards dishing out, make the first portion of the oiling agent dish out accumulate in piston hole and the piston at least one, with the interface between lube pistons and the cylinder, the second portion of the oiling agent of dishing out absorbs heat from the surface of cylinder except that piston hole;

Wherein, cylinder is configured to collect the second portion of the oiling agent of dishing out, and controls second portion the flowing when being back to storage tank of the oiling agent of dishing out.

16, air compressor according to claim 15 is characterized in that, described at least one runner is formed on the outer surface of cylinder.

17, air compressor according to claim 16 is characterized in that, at least a portion of described at least one runner is spiral.

18, air compressor according to claim 17 is characterized in that, the helix of at least a portion of described at least one cooling channel has the axis that coincides with the piston hole longitudinal axis.

19, air compressor according to claim 17 is characterized in that, described at least one runner is formed in the outer surface with the direction transverse to the axis of the helix of at least one cooling channel.

20, air compressor according to claim 16 is characterized in that, described at least one runner is formed in the outer surface perpendicular to the axis of the helix of at least one cooling channel usually.

21, air compressor according to claim 15 is characterized in that, the remaining part of described at least one runner and cylinder is integrally formed.

22, air compressor according to claim 15 is characterized in that, also comprises the cylinder upper shield that joins on the cylinder, and the cylinder upper shield at least partly covers at least a portion of cylinder outside.

23, a kind of air compressor is characterized in that, comprising:

Comprise cover plate and limit the crank box of inner chamber, at least a portion of inner chamber forms storage tank;

Can be rotatably set in the bent axle in the inner chamber;

Be arranged on the oiling agent in the storage tank;

Compression cylinder comprises substantially by inner chamber outer surface that surrounds and the internal surface that limits piston hole;

The piston external member comprises piston, wrist pin and connecting rod, and piston is received in the piston hole slidably, and wrist pin is connected to first end of connecting rod with piston, and second end of connecting rod is attached on the bent axle; With

Be attached to the cap assemblies on the crank box, cap assemblies comprises expulsion valve;

Wherein, piston to-and-fro motion in cylinder is arranged on air between compression cylinder, piston and the cap assemblies with compression, and wherein, when the compressed air pressure in the compression cylinder surpassed predetermined pressure, valve was opened, to discharge the pressurized air in the compression cylinder.

24, air compressor according to claim 23 is characterized in that, described compression cylinder receives by cover plate, and hangs from cover plate in inner chamber.

25, air compressor according to claim 24 is characterized in that, described cylinder comprises cylinder block and the cylinder flange that extends radially outwardly from cylinder block, and cylinder flange is received in the counterbore that is formed in the cover plate.

26, air compressor according to claim 23 is characterized in that, described compression cylinder comprises the cooling channel that surrounds outer surface basically.

27, air compressor according to claim 26 is characterized in that, described cooling channel forms with spirality path on the compression cylinder outer surface.

28, air compressor according to claim 26 is characterized in that, also comprises the sheath and the cooling channel between outer surface and sheath that surround the compression cylinder outer surface basically.

29, air compressor according to claim 23, it is characterized in that, also comprise the oil thrower related with bent axle, oil thrower is thrown in the inner chamber the inside by the motion of the oiling agent in the storage tank and with oiling agent, the first portion of the oiling agent of dishing out accumulates in compression cylinder internal surface and the piston at least one, with the interface between lube pistons and the cylinder, the second portion of the oiling agent of dishing out accumulates in the cooling channel, the second portion of the oiling agent of dishing out moves at the external surface peripheral of cylinder according to the gravity that applies, thereby absorbs heat from cylinder.

30, a kind of air compressor is characterized in that, comprising:

Limit the cylinder seat of axis hole, cylinder and inner chamber;

Be attached to the lid of cylinder seat with closed inner chamber, this lid confining wall member, bearing hub and ventilation labyrinth, bearing hub is attached on the wall member, and the ventilation labyrinth comprises pair of sidewalls, a plurality of baffle plate and outlet, and a plurality of sidewalls and a plurality of baffle plate and wall member cooperation are to form ventilation space;

Be received in the axis hole and be attached to first main bearing on the cylinder seat;

Be received in second main bearing in the bearing hub;

Support by first and second main bearings and to be used for the bent axle that rotates at inner chamber;

Be received in the piston in the cylinder;

Piston is attached to the connecting rod of bent axle;

The valve assembly that is communicated with the cylinder fluid; With

Be arranged on the cap packing between cylinder seat and the lid, the closed side that faces toward the ventilation labyrinth of wall member of cap packing, cap packing comprises the inlet hole that is communicated with inner chamber and ventilation space fluid;

Wherein, piston to-and-fro motion in cylinder is arranged on air in the cylinder with compression, and wherein, when the compressed air pressure in the cylinder surpassed predetermined pressure, valve was opened to discharge the pressurized air in the cylinder.

Images