CN207660828U - A kind of shaft end lubrication assembly and compressor - Google Patents

Abstract

The utility model discloses a kind of shaft ends to lubricate assembly, includes mainly a shaft, shaft includes sequentially connected linkage section, the shaft shoulder, positioning section and eccentric segment.Wherein, shaft further includes a helicla flute, which is arranged in the excircle of the shaft shoulder, positioning section and eccentric segment, and helicla flute extends to the eccentric segment from the side wall of the shaft shoulder, and first sink hole is stretched into the end of the helicla flute.Circumferentially along shaft, in shaft rotation process, lubricating oil flows into cylinder body helicla flute under the influence of centrifugal force in slot.In addition, the invention also discloses a kind of compressors.

Description

A kind of shaft end lubrication assembly and compressor

Technical field

The utility model is related to fluid compressing device more particularly to a kind of shaft end lubrication assemblies and compressor.

Background technology

Within the compressor, the contact surface of rotor high-speed rotation in cylinder body, cylinder body and rotor is easy to wear.Due in cylinder body Lubricating oil inevitably leak, lubricating oil should be filled into time.Reference 201310712168.0, the bent axle packet of that compressor Include long axis, eccentric part and short axle.The through-flow slot extended from long axis end to eccentric part is provided on the peripheral wall of long axis, through-flow slot Cross section semicircular in shape or arc.The inner wall of the rotor of through-flow slot and motor on compressor crank shaft forms the logical of reflux refrigeration oil Discharge orifice.In helicla flute rotation process, fluid can flow under the influence of centrifugal force along predetermined direction in slot.In the case, spiral shell is set Spin slot guides the design scheme of the fluid direction of motion can be as the reference of the application.

Utility model content

The utility model proposes a kind of shaft ends to lubricate assembly, and helicla flute is arranged in shaft, can introduce lubricating oil and press In contracting machine cavity room, cylinder body abrasion is reduced.

What the technical solution of the utility model was realized in：

A kind of shaft end lubrication assembly, including：Cylinder body, end cap, triangle piston, shaft, internal gear and external gear, the end Lid is fixed on the cylinder side wall, which there is a positioning hole, the cylinder body there is a compression chamber, the triangle piston to be located at institute It states in compression chamber, the side of the triangle piston is equipped with first gear mounting groove, and the internal gear is fixed on first gear peace In tankage, the external gear is fixed on the bottom of the cylinder body, which is engaged to the internal gear, which is characterized in that should It is equipped with the first sink hole in first gear mounting groove, a through-hole is equipped in the middle part of first sink hole, the shaft includes connecting successively Linkage section, the shaft shoulder, positioning section and the eccentric segment connect, the positioning section are rotatably inserted into the location hole, the eccentric segment Across the location hole and it is inserted into the through-hole, wherein the shaft further includes a helicla flute, which is arranged in the axis The excircle of shoulder, positioning section and eccentric segment, the helicla flute extend to the eccentric segment from the side wall of the shaft shoulder, the spiral First sink hole is stretched into the end of slot.

In the lubrication assembly of this shaft end of the utility model, the diameter of first sink hole is more than the internal diameter of internal gear.

In the lubrication assembly of this shaft end of the utility model, the end cap is equipped with the close to the side of the compression chamber Two sink holes, the helicla flute are connected to second sink hole at least partly.

In the lubrication assembly of this shaft end of the utility model, the middle part of the external gear is equipped with the first elongated hole, this One elongated hole is connected to first sink hole.

In the lubrication assembly of this shaft end of the utility model, the bottom of the cylinder body is equipped with the second elongated hole, this second Elongated hole is connected to first elongated hole.

In the lubrication assembly of this shaft end of the utility model, the width of the helicla flute is 1.5 to 2mm.

In the lubrication assembly of this shaft end of the utility model, the depth of the helicla flute is 0.5mm.

A kind of compressor, which is characterized in that lubricate assembly including the shaft end.

The lubrication assembly for implementing this compressor of the utility model, has the advantages that：Helicla flute is along shaft Circumferentially, in shaft rotation process, fluid flows into cylinder body under the influence of centrifugal force in slot.Parts of lubricating oil is along spiral The end of slot enters between internal gear and external gear, reduces between cog abrasion.Parts of lubricating oil flows into cylinder base, drop through extension slot The abrasion of low cylinder body and triangle piston.Parts of lubricating oil is flowed into through sink hole between end cap and triangle piston, reduces end cap and three The abrasion of corner pistons.

Description of the drawings

Fig. 1 is the schematic diagram of the lubrication assembly of the compressor of the utility model；

Fig. 2 is the schematic diagram of Fig. 1；

Fig. 3 is the schematic diagram of the cylinder body of Fig. 1；

Fig. 4 is the schematic diagram of the triangle piston of Fig. 1；

Fig. 5 is the schematic diagram of the shaft of Fig. 1；

Fig. 6 is the schematic diagram of the gear set of Fig. 1；

Fig. 7 is the preferred structure schematic diagram of the compressor of the utility model.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.

The shaft end of the utility model as shown in Figures 1 to 6 lubricates assembly, includes mainly cylinder body 20, end cap 30, triangle piston 40, shaft 50 etc..Cylinder body 20 is connected to the end cap 30 through multiple stud bolt holes 23.A diameter of 5mm of stud bolt hole 23.Triangle piston 40 are limited between cylinder body 20 and end cap 30.Shaft 50 drives triangle piston 40 to rotate.Shaft 50 includes sequentially connected company Connect section 51, the shaft shoulder 52, positioning section 53 and eccentric segment 54.Linkage section 51 connects rotor through keyway.Shaft 50 drives three through motor Corner pistons 40 revolve round the sun.End cap 30 has location hole 32.The first sink hole 45, first heavy platform are equipped in first gear mounting groove 44 45 middle part of hole is equipped with a through-hole 46.Positioning section 53 is rotatably inserted into the location hole 32, and eccentric segment 54 passes through location hole 32 simultaneously It is inserted into through-hole 46.

Shaft 50 further includes a helicla flute 55, which is arranged in the shaft shoulder 52, positioning section 53 and eccentric segment 54 excircle, helicla flute 55 extend to the eccentric segment 54 from the side wall of the shaft shoulder 52, and the end of the helicla flute 55 is stretched into described First sink hole 45.The diameter of first sink hole 45 is more than the internal diameter of internal gear 60.Helicla flute 55 along shaft 50 circumferentially, In 50 rotation process of shaft, fluid is flowed under the influence of centrifugal force in cylinder body 20 in slot.Parts of lubricating oil is along helicla flute 55 End enter between internal gear 60 and external gear 70, reduce between cog abrasion.The side of the close compression chamber 24 of end cap 30 Equipped with the second sink hole 33, helicla flute 55 is connected to second sink hole 33 at least partly.Parts of lubricating oil is through sink hole It flows between end cap 30 and triangle piston 40, reduces the abrasion of end cap 30 and triangle piston 40.The middle part of external gear 70 is equipped with the One elongated hole 73, first elongated hole 73 are connected to first sink hole 45.The bottom of cylinder body 20 is equipped with the second elongated hole 29, Second elongated hole 29 is connected to first elongated hole 73.Parts of lubricating oil flows into 20 bottom of cylinder body through extension slot, reduces cylinder The abrasion of body 20 and triangle piston 40.The utility model does not limit the concrete structure of helicla flute 55, preferably, helicla flute 55 Width is 1.5 to 2mm, depth 0.5mm.

Cylinder body 20 has a compression chamber 24, and the madial wall of compression chamber 24 includes symmetrical concave-shaped arc surface 25, and two recessed Shape cambered surface 25 is connected through fillet surface 26.The bottom of the compression chamber 24 is equipped with venthole 27.The bottom of end cap 30 is equipped with air admission hole 31.End cap 30 is fixed on the side of cylinder body 20, and compression chamber 24 is limited to a substantially closed region by end cap 30.The closed area Exterior space is connected through air admission hole 31 and venthole 27.Triangle piston 40 is located in compression chamber 24, which has three A vertex 41 and the convex-shaped arc surface 42 for connecting three vertex 41.Three vertex 41 are pressed in the concave-shaped arc surface 25, part Concave-shaped arc surface 25 forms an operating room 43 with convex-shaped arc surface 42.When triangle piston 40 rotates, three vertex 41 are pressed in compression always The madial wall of chamber 24 avoids the unsupported vibration of piston.Part operating room 43 is connected to air admission hole 31, part operating room 43 with go out Stomata 27 is connected to.Triangle piston 40 closes different stomatas under different conditions.Wherein under a state, operating room 43 with into Stomata 31 is connected to, and gas is full of operating room 43.In the other state, operating room 43 is connected to venthole 27, starts to be vented.

In the present embodiment, compression chamber 24 is the structure of dual recess circular arc, and the side wall of corresponding triangle piston 40 is The structure of raised circular arc.The radius of convex-shaped arc surface 42 is 58.17mm, and the outline diameter of triangle piston 40 is 76.01mm.A pair into Stomata 31 and venthole 27 are arranged symmetrically.Air admission hole 31 is located substantially at 40 exterior contour of triangle piston apart from 20 madial wall of cylinder body The far point of profile.The air admission hole 31 of the position can guarantee that triangle piston 40 can close air admission hole 31 in time.Concave-shaped arc surface 25 and pressure The bottom of contracting chamber 24 intersects at a seamed edge, and venthole 27 is located on the seamed edge and the position of the close fillet surface 26 of concave-shaped arc surface 25 It sets.The venthole 27 of the position can guarantee that most gases can be discharged from venthole 27.Specifically, 31 diameter of air admission hole The distance of 9mm, two air admission holes 31 are 62mm.The distance of 31 diameter 4mm of air admission hole, two ventholes 27 are 70mm.

The side of triangle piston 40 is equipped with first gear mounting groove 44, and the internal gear 60 is fixed through at least one axis pin In the first gear mounting groove 44.The bottom of cylinder body 20 is equipped with second gear mounting groove 28, and it is convex that the external gear 70 is equipped with one Portion 71 is played, which is fixed on through at least one pin shaft hole 72 in the second gear mounting groove 28.External gear 70 engages To the internal gear 60, triangle piston 40 is relative to the revolution of cylinder body 20 simultaneously from the purpose for being conveyed to periodic compression gas chamber.Small tooth Wheel is fixed on 20 bottom of cylinder body, and inside partial insertion cylinder body 20, and gear wheel is mounted in triangle piston 40, reduces component General thickness, portable construction.The gear ratio of external gear 70 and internal gear 60 is 2：3.Triangle piston 40 is while revolution With 1.5 times of speed rotation, periodical air-breathing and exhaust.

There is the shaft end to lubricate assembly, also have for this two chambers piston compressor of the utility model as shown in Figure 7 There are shell 10, electric machine assembly 80 and internal-external gear.Shell 10 is made of the first shell 11 and second housing 12, the first shell 10 are connected to the second shell 10 through a flange arrangement 13.Shell end has admission line 16 and outlet pipe 17, is used for Connect outside condenser component.Electric machine assembly 80 includes stator 81 and rotor 82, and stator 81 is fixed in the accommodating area 14, is turned Son 82 is connected to shaft 50.Electric machine assembly is connected to external power supply through binding post 83, and binding post 83 is located at the mounting hole on shell In 15.Shell 10 has an accommodating area 14, and it is accommodating that the components such as cylinder body 20, triangle piston 40 and electric machine assembly 80 are respectively positioned on this In area 14.There is mounting portion 21, the mounting portion 21 to be connected to 14 madial wall of accommodating area in cylinder body 20 outside.Cylinder body 20 is equipped with catch 22, which is pressed on venthole 27.External gear 70 is fixed in cylinder body 20, and internal gear 60 is connected to through multiple pin holes 61 The triangle piston 40, a diameter of 3mm of pin hole 61.Triangle piston 40 forms three independent operating rooms 43 with cylinder body 20. Shaft 50 drives triangle piston 40 to rotate, and the volume of three operating rooms 43 periodically changes, singly completes gas compression and follow Ring improves work efficiency.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims (8)

1. a kind of shaft end lubricates assembly, including：Cylinder body, end cap, triangle piston, shaft, internal gear and external gear, the end cap It is fixed on the cylinder side wall, which there is a positioning hole, the cylinder body there is a compression chamber, the triangle piston to be located at described In compression chamber, the side of the triangle piston is equipped with first gear mounting groove, and the internal gear is fixed on first gear installation In slot, the external gear is fixed on the bottom of the cylinder body, which is engaged to the internal gear, which is characterized in that this It is equipped with the first sink hole in one gear mounting groove, a through-hole is equipped in the middle part of first sink hole, the shaft includes being sequentially connected Linkage section, the shaft shoulder, positioning section and eccentric segment, the positioning section is rotatably inserted into the location hole, and the eccentric segment is worn It crosses the location hole and is inserted into the through-hole, wherein the shaft further includes a helicla flute, which is arranged in the axis The excircle of shoulder, positioning section and eccentric segment, the helicla flute extend to the eccentric segment from the side wall of the shaft shoulder, the spiral First sink hole is stretched into the end of slot.

2. shaft end according to claim 1 lubricates assembly, which is characterized in that the diameter of first sink hole is more than internal gear Internal diameter.

3. shaft end according to claim 1 lubricates assembly, which is characterized in that the one of the close compression chamber of the end cap Side is equipped with the second sink hole, and the helicla flute is connected to second sink hole at least partly.

4. shaft end according to claim 2 lubricates assembly, which is characterized in that the middle part of the external gear is equipped with first and extends Hole, first elongated hole are connected to first sink hole.

5. shaft end according to claim 4 lubricates assembly, which is characterized in that the bottom of the cylinder body is equipped with second and extends Hole, second elongated hole are connected to first elongated hole.

6. shaft end according to claim 1 lubricates assembly, which is characterized in that the width of the helicla flute is 1.5 to 2mm.

7. shaft end according to claim 1 lubricates assembly, which is characterized in that the depth of the helicla flute is 0.5mm.

8. a kind of compressor, which is characterized in that lubricate assembly including shaft end as described in claim 1.