CN1427153A - Compressor shaft having volumetric oil pump - Google Patents
Compressor shaft having volumetric oil pump Download PDFInfo
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- CN1427153A CN1427153A CN 01144260 CN01144260A CN1427153A CN 1427153 A CN1427153 A CN 1427153A CN 01144260 CN01144260 CN 01144260 CN 01144260 A CN01144260 A CN 01144260A CN 1427153 A CN1427153 A CN 1427153A
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Abstract
A compressor shaft with displacement-type oil pump features that the hollow cylindrical pump body is positioned in the lower part of machine shaft and the lower part of pump body is inserted in the drilled hole of pump body in upper part of piston. The annual slot and the boss, which are matched with each others, are respectively on the external circumference and the inner hole of pump body and piston. The piston has a sucking inlet of cooling machine oil at its lower end and a valve in its hole. When the oil pump is running at lowspeed, the cooling machine oil can be output.
Description
Technical field:
The invention belongs to compressor, particularly have the compressor shaft of volumetric oil pump.
Background technique:
Refrigerator, refrigerator-freezer etc. all are refrigeration containers.Compressor is arranged in the refrigeration container, and compressor is used to compress compression refrigerant, carries out refrigeration by the heat absorption and the heat release of refrigerant, below, to general refrigeration container compressor, the formation that particularly comes and goes movable compressor is elaborated with reference to accompanying drawing.
At first, Fig. 1 expresses the sectional drawing of general refrigeration container with compressor arrangement.Fig. 2 expresses the front elevation of general compressor shaft.Fig. 3 a and Fig. 3 b express the oil pump casing of arbor among Fig. 2, the front elevation of slurcocks respectively.
As shown in Figure 1, coming and going movable compressor is made of two big parts; A part is to form in the shell space 1 of sealing in lower case 2 and upper body 3, produces the motor of rotating force after the turn-on current.Another part is the press part by the rotating force compression refrigerant of motor.
Motor is made of two parts.A part is the stator 4 that produces electromagnetic force after the motor turn-on current, and another part is the rotor 5 that produces rotating force by the electromagnetic force of stator.
The press part structure is made up of following part: be pressed in the rotor 5 arbors 30 with rotor 5 rotations, convert rotatablely moving of arbor the connecting rod 13 of straight line back and forth movement to, by the piston 12 of connecting rod 13 at the internal compression refrigerant of circle tube cylinder 11.
One end of connecting rod 13 is connected with the eccentric shaft 31 of arbor 30 upper ends, and the other end of connecting rod is connected with piston 12 usefulness bearing pins, rotatablely moving of arbor 30 is converted to the straight line back and forth movement of piston 12.
The long-pending cooling machine oil L that prevents various mechanical part wearing and tearing that appropriate depth is arranged in lower case 2 bottoms, the lower end of arbor 30 is immersed in the cooling machine oil L.The rotation of cooling machine oil L by arbor 30 splashed after the inside of arbor and circumferential surface are transported to eccentric shaft 31.So can lubricate the parts of various friction campaign portion, simultaneously, take away the heat of arbor inside.
Lower case 2 one sides have in order to link the sealing plug 15 and the electrical connector 14 of stator 4 and external power supply.Electrical connector 14 is fixed with a plurality of leads 16 of drawing from stator 4.
Below, be elaborated with reference to the structure of accompanying drawing to arbor.
As shown in Figure 2, arbor 30 is made up of following structure; There is the eccentric shaft 31 with axle center off-centre arbor 30 upper ends, and the equilibrium block 32 of vibration when preventing to rotate is arranged below eccentric shaft 31; The oil pump 27 that is immersed in the cooling machine oil is arranged at the bottom of arbor, and oil pump 27 is exported cooling machine oil when rotated, and axis body 33 has the oil circuit that cooling machine oil is risen.
The inside of axis body 33 has following structure; Oil pump 27 is inserted in axis body 33 lower ends, and oil pump 27 24 upwards flows cooling machine oil by holing, and 24 to axis body 33 circumferential surfaces oilhole 35 is arranged from holing, and oil groove 36 is being arranged 31 from oilhole 35 to eccentric shaft on the circumferential surface of arbor 30.Boring 24 internal diameter approximately is percent 50 of axis body 33 external diameters, the relatively axle center of axis body.
As shown in Figure 3, oil pump 27 is a kind of centrifugal oil pumps that utilize centrifugal force output cooling machine oil.The structure of oil pump 27 is to be made of following structure; Be inserted in arbor axis body lower end the cylinder type shape oil pump casing 27a and be inserted in a little obliquely in the oil pump casing 27a, promote the slurcocks 27b that cooling machine oil rises.
The working condition of arbor 30 is as follows; By applying power supply to motor, arbor 30 is with rotor 5 rotations, is rotated in the rotation along with arbor 30 of the oil pump 27 of arbor 30 lower ends.At this moment, cooling machine oil L moves up under centrifugal action by the slurcocks 27B of oil pump, enters boring 24.Afterwards, cooling machine oil L flow to oil groove 36 by oilhole 35.Then, cooling machine oil L enters into eccentric shaft 31 by after the oil groove 36 lubricated radial bearings, is splashed on interior each parts of compression case.
But compressor is extensive use of two kinds of motors at present; A kind of is variable-frequency motor, and another kind is a brushless direct-current BLDC motor.Use the purpose of above-mentioned two kinds of motors to be: can reduce the electric power that the refrigeration container product consumes effectively, above-mentioned two kinds of motors can high speed rotating also can low speed rotation.
Because the arbor of above-mentioned compressor is mainly used in and runs up (approximately 3600rpm), so, the problem of cooling machine oil fuel feeding deficiency has appearred when low-speed running (approximately 1800rpm).Because cooling machine oil is to move up by the centrifugal force that the arbor rotation produces, arbor centrifugal force when low speed rotation sharply reduces, and can not normally export cooling machine oil.So caused preventing that the greasy property of various component wears from reducing and reduced, reduced the life-span of compressor to the performance that internal heat is distributed in the outside.
Summary of the invention
Technical problem to be solved by this invention is for energy low-speed running and the compressor that runs up, to provide a kind of compressor shaft that has volumetric oil pump.When low-speed running, also can normally export cooling machine oil.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: volumetric oil pump is arranged at the bottom of arbor, volumetric oil pump is by pump body, the piston of moving element, the bump groove and the bump of movement conversion parts, the valve of switch part, piston guide rail and chock are formed, the pump body of hollow cylindrical is positioned at the axis body bottom, boring is arranged in the middle of the pump body, the outer peripheral surface of pump body bottom inserts in the hole on piston top, bump groove and bump lay respectively on the outer peripheral surface and endoporus of pump body and piston, bump inserts in the bump groove, the bump groove is the annular recess that tilts with shaft axis, there is the cooling machine oil suction port lower end of piston, in the hole of piston bottom valve is arranged, hollow cylindrical piston guide rail is positioned at the outside of piston, the Kong Zhongyou of piston guide rail and the V-shaped groove of axis parallel, on the outer peripheral surface of piston chock is arranged, chock inserts in the V-shaped groove.
The bottom of described cylindrical shape axis body is a pump body, in the middle of the axis body bottom as pump body boring is arranged, and holes to be communicated with the oilhole that is positioned at the axis body middle part.
The lower end of described axis body is pressed into the hole to the height of oilhole; The bottom that is pressed into the hole is inserted on the top of the plug-in type pump body of hollow cylindrical, and the bottom of plug-in type pump body is in the outside that is pressed into the hole.
Described bump groove is positioned on the outer peripheral surface face of pump body, and bump is arranged in the endoporus on piston top.
Described bump groove is arranged in the endoporus on piston top, and bump is positioned on the outer peripheral surface of pump body.
Described switch part is arranged on the inside of piston, is made of valve, and valve is discoid, when piston moves, and valve opening or close suction port.
A plurality of inlet holes are arranged on the described valve, and when suction port was open, a plurality of inlet holes sucked cooling machine oil.Inlet hole is arranged on than on the big housing parts of piston intet diameter.
Described movement conversion parts also comprise the piston guide rail of restriction piston rotation, and the piston guide rail is the open hollow cylindricals in both sides, is installed on the outer peripheral surface of piston.
V-shaped groove with axis parallel is arranged on the inner peripheral surface of described piston guide rail, and the quantity of V-shaped groove is one or more, and evenly distributes on inner peripheral surface, and the outer peripheral surface of piston has the chock of the insertion V-shaped groove of same number.
On the endoporus of described piston bottom the valve baffle ring is arranged, when suction port is open, the height that valve baffle ring limiter valve rises.
Described valve baffle ring be shaped as annular boss, be arranged on the endoporus of piston.
The round lip that certain-length is arranged on the described insertion pump body, lip is formed by the interior week circle prolongation of boring, to prevent the adverse current of cooling machine oil.
The beneficial effect that has the compressor shaft of volumetric oil pump of the present invention is: possessed the volumetric oil pump by the output of the motion up and down cooling machine oil of axis body lower end piston, so compressor is not subjected to the overslaugh of centrifugal force when low-speed running, cooling machine oil is fed to fully the eccentric shaft of axis body upper end.So, prevent the wearing and tearing of the inner various parts of compressor, the heat of compressor inside is distributed easily, improve reliability.
Description of drawings
Fig. 1 expresses the sectional drawing of general refrigeration container with compressor arrangement.
Fig. 2 expresses the front elevation of general compressor shaft.
Fig. 3 a and Fig. 3 b express the oil pump casing of arbor among Fig. 2, the front elevation of slurcocks respectively.
Fig. 4 expresses the sectional drawing that first embodiment of the invention has the compressor shaft of volumetric oil pump.
Fig. 5 expresses the front elevation of first embodiment of the invention arbor axis body lower end.
Fig. 6 a and Fig. 6 b express the sectional drawing and the planimetric map of piston in the oil pump of first embodiment of the invention arbor respectively.
Fig. 7 a and Fig. 7 b express the sectional drawing and the planimetric map of valve in the first embodiment of the invention arbor oil pump respectively.
Fig. 8 a and Fig. 8 b express the sectional drawing and the planimetric map of piston guide rail in the first embodiment of the invention arbor oil pump respectively.
Fig. 9 a and 9b express the compressor shaft working procedure sectional drawing that other first embodiment of the present invention has volumetric oil pump respectively.
Figure 10 expresses the front elevation of plug-in type pump body in other second embodiment's arbor oil pump of the present invention.
In the drawings
1. shell space 2. lower case 3. upper body
4. stator 5. rotors 11. cylinder bodies
12. piston 13. connecting rods 14. electrical connectors
15. sealing plug 16. leads 24. borings
27. the centrifugal barrel 27b. of oil pump 27a. slurcocks
30. arbor 31. eccentric shafts 32. equilibrium blocks
33. axis body 34. borings 35. oilholes
36. oil groove 37. grooves 40. pistons
41. bump 43. valves are filled in 45. piston base
47. suction port 49. chocks 50. valves
51. inlet hole 60. piston guide rail 37a. peaks
37b. minimum point 53. cylindrical 61.V shape grooves
63. oil pump pump 71. bump grooves are inserted at piston guide rail two ends 70.
75. lips, 100. axis bodies 73. hole
110. be pressed into the hole
Embodiment
Below in conjunction with accompanying drawing and embodiment the compressor shaft that the present invention has volumetric oil pump is elaborated:
Fig. 4 expresses the sectional drawing that first embodiment of the invention has the compressor shaft of volumetric oil pump.Fig. 5 expresses the front elevation of first embodiment of the invention arbor axis body lower end.Fig. 6 a and Fig. 6 b express the sectional drawing and the planimetric map of piston in the oil pump of first embodiment of the invention arbor respectively.Fig. 7 a and Fig. 7 b express the sectional drawing and the planimetric map of valve in the first embodiment of the invention arbor oil pump respectively.Fig. 8 a and Fig. 8 b express the sectional drawing and the planimetric map of piston guide rail in the first embodiment of the invention arbor oil pump respectively.
Volumetric oil pump of the present invention by having certain space pump body and and pump body is external or in the volume-variation output liquid of the confined space that forms between the moving element that connects.Volumetric oil pump is the oil pump that changes confined space by the back and forth movement of moving element.
Being divided into two kinds of situations below describes: a kind of situation is and moving element forms the pump body of confined space and the situation that arbor forms one; Another kind of situation is and the pump body of moving element formation confined space is a situation about being made of the other insertion pump body that is pressed in the arbor.
At first, as shown in Figure 4, arbor 30 comprises following structure: cylindric axis body 33 is pressed in the rotor of motor and with rotor and rotates; In the upper end of axis body the relatively hollow eccentric shaft 31 at the center of axis body is arranged, the outer peripheral surface of eccentric shaft is connected with connecting rod; The volumetric oil pump that is immersed in the cooling machine oil is arranged at the bottom of axis body 33, and volumetric oil pump is by the rotation output cooling machine oil of axis body; To reduce vibrations in order rotating, between axis body 33 and the eccentric shaft 31 equilibrium block 32 to be arranged.Oilhole 35 with the axis body internal communication is arranged on the middle outer peripheral surface of axis body 33; 31 lower end forms the oil groove 36 of screw type cooling machine oil path along the outer peripheral surface of axis body from oilhole 35 to eccentric shaft; The upper end of oil groove 36 is connected with eccentric shaft 31.
There is boring 34 axis body 33 lower ends to the height of oilhole 35 positions, and pump body is formed with boring in the axis body bottom; Be inserted into the outer peripheral surface of axis body 33 bottoms as the upper end of the piston 40 of moveable element, the other end is immersed in the cooling machine oil.The outer peripheral surface of axis body 33 bottoms has bump groove 37; Piston 40 top endoporus have the bump 41 that inserts in the bump groove 37, constitute the parts of movement conversion.As switch part the valve 50 that can move up and down is arranged in the inside of piston 40.
Also can make the bump groove be arranged in the endoporus on piston top, bump is positioned on the outer peripheral surface of pump body.
In addition, as the part of movement conversion parts, piston guide rail 60 is installed in the outside of piston 40, and when axis body 33 rotations, piston guide rail 60 limited piston 40 are with axis body 33 rotations.Valve baffle ring 43 is arranged on the inwall at piston 40, limiter valve 50 lifting heights.
Structural element to volumetric oil pump is described in detail one by one below.
At first, as shown in Figure 5, the inside that boring 34 is arranged on the axis body lower end forms path along the direction of axle, and is connected with oilhole.The outer peripheral surface of axis body lower end has bump groove 37, and the bump groove is to intersect with the direction of axle, a closed curve that tilts a little with horizontal line.That is, bump groove 37 is the oval grooves that tilt at axis body 33 outer peripheral surfaces.So bump groove 37 positions have produced height difference along with variable height between peak 37a and the minimum point 37b, height difference is identical with piston stroke.
As above shown in Fig. 6 a and Fig. 6 b, in order to insert the outer peripheral surface of axis body lower end, the shape of piston 40 is the porose hollow cylindricals in two ends.The upper end of the piston 40 of insertion axis body is unlimited fully, and lower end 45 parts of piston 40 are bent, and forms the suction port 47 of certain diameter in the bending part.
In addition, the endoporus on piston 40 tops has bump 41.Bump 41 is inserted on the bump groove that the outer peripheral surface of axis body forms.Bump 41 relatively moves with the bump groove by the axis body rotation.So, not rotating of bump itself, be the bump groove is in rotation.In order to prevent that bump 41 from rotating with the bump groove, piston 40 does not rotate.
So bump 41 is along with the motion repeatedly of the highs and lows position of bump groove, piston 40 carries out back and forth movement up and down in the height difference scope of peak and minimum point.
As above shown in Fig. 7 a and Fig. 7 b, valve 50 is the disks that are inserted in internal piston.Endoporus contacts in the cylindrical 53 of valve 50 and the piston, the cylindrical 53 of valve 50 have certain altitude bending part, on the endoporus of piston, can move up and down.When valve contacts with suction port 47, in order to seal suction port 47, form airtight space with piston, the disk area of valve 50 is bigger than the area of the suction port of piston.
A plurality of inlet holes 51 are arranged on the valve 50.The effect of inlet hole 51 is, valve 50 makes the cooling machine oil that flows into by suction port flow in the boring by valve during away from the suction port of piston.So, inlet hole 51 is arranged in uniform distances on the card of valve 50, implement the inlet hole that embodiment has 8 same distance as first.
In addition, as above shown in Fig. 6 a and Fig. 6 b, be equipped with valve baffle ring 43 in the endoporus interposition of piston 40.Valve baffle ring 43 works to stop valve.
That is, when piston descended, valve baffle ring 43 was in order to limit the valve lifting height of relative rising, keep valve and axis body lower end between the certain Coolers oil mass of inflow.If, do not possess valve baffle ring 43 situations, when descending, piston 40 rises to the lower end of axis body along with valve, and cooling machine oil flows out to the outside by suction port 47, can not normally export cooling machine oil.
So valve baffle ring 43 has following two kinds of situations.A kind of is that valve baffle ring 43 protrudes certain length along the inwall of piston 40, becomes the part of piston.Another kind is, the valve baffle ring is pressed into the inwall of piston with round ring-type, is fixed on the suitable position of the inwall of piston with other parts.
As above shown in Fig. 8 a and Fig. 8 b, piston guide rail 60 is as a part in the movement conversion means of the motion up and down that ensures pistons, and when contacting with the outer peripheral surface of piston, itself is fixed on the parts such as stator of motor (omitting among the figure).
In addition, as above shown in Fig. 6 a and Fig. 6 b, on the outer peripheral surface of the bottom of piston 40, form the chock 49 that inserts piston guide rail V-type groove.At this moment, chock 49 is identical with the number of V-type groove, as a chock 49 respectively is set about an embodiment.
Because chock 49 is inserted in the V-type groove of piston guide rail, even produce rotating force by the rotation of axis body, piston 40 is straight line motion up and down still.
As mentioned above, the effect that constitutes the compressor shaft 30 have volumetric oil pump is; Along with axis body 33 rotates with rotor, make piston 40 carry out back and forth movement up and down.The interior cooling machine oil of confined space that flow into valve 50, axis body 33 and piston 40 formation rises to oilhole 35 and oil groove 36 by boring 34, finally disperses to the various piece of compressor inside by eccentric shaft 31.
Below, with reference to accompanying drawing second embodiment of the invention is elaborated.
At first, Fig. 9 a and 9b express the compressor shaft working procedure sectional drawing that second embodiment of the invention has volumetric oil pump respectively, and Figure 10 expresses the front elevation that inserts pump body in the second embodiment of the invention arbor oil pump.
Shown in Fig. 9 a and Fig. 9 b, the compressor shaft that second embodiment of the invention has a volumetric oil pump is that the lower end by cylindric axis body 100 is pressed into hole 110 to the oilhole height, is pressed in the hole 110 volumetric oil pump can be set.Though do not express among the figure, it is natural being pressed into that hole 110 is connected with oilhole.
The structure of volumetric oil pump is made up of following structure; Be pressed into the insertion pump body 70 that is pressed in the hole 110; Be inserted into and insert the piston 40 that pump body 70 bottoms can be moved up and down; Valve 50 is arranged in the piston, and forms confined spaces with insertion pump body 70 and piston 40.To insert the movement conversion parts of motion up and down that rotatablely moving of pump body 70 converts piston 40 in addition in addition.
Below each key element that constitutes volumetric oil pump is elaborated.
At first, shown in Figure 10, to insert pump body 70 and be arranged on being pressed in the hole 110 of axis body 100 lower ends, boring 73 forms path in the inside of inserting pump body 70.At this moment, the upper end of inserting pump body 70 be pressed into axis body the lower end be pressed into hole 110, the lower end of inserting pump body 70 simultaneously is exposed at the outside of axis body 100, inserts piston at the outer peripheral surface that inserts pump body 70.
In addition, the outer peripheral surface that inserts pump body 70 lower ends has bump groove 71, and bump groove 71 will insert the motion up and down that rotatablely moving of pump body 70 converts piston 40 to.Bump groove 71 is identical with first embodiment annular recess that tilt with shaft axis, and the length that piston moves up and down is identical with the height difference of peak 71a and minimum point 71b formation.
In addition, there is the round lip 75 of boring of forming 73 upper end of inserting pump body 70, and round lip 75 prolongs into certain-length along the endoporus of boring 73 and forms.The effect of lip 75 is, 73 spills cooling machine oil by holing when preventing that piston from descending.That is, by holing 73 to being pressed into the cooling machine oil that hole 110 flows into, rise along inwall by centrifugal force, lip is arranged on the formation dividing plate that is pressed between hole and the boring, prevents that cooling machine oil is to the boring adverse current.
Below, be inserted in the piston that inserts pump body the other end outer peripheral surface as being applicable to, identical with first embodiment, as above shown in Fig. 6 a and Fig. 6 b.
In addition, be arranged on the valve of internal piston, identical with first embodiment's valve, as above shown in Fig. 7 a and Fig. 7 b.
Also have, be combined in the piston guide rail of outside piston side face, same identical with first embodiment, as above shown in Fig. 8 a and Fig. 8 b.
With reference to the accompanying drawings, the effect to the compressor shaft that has volumetric oil pump with structure is elaborated.
As above shown in Fig. 9 a and the 9b, the operation process of arbor is as follows; At first make the rotor rotation after the motor energising, the rotation by rotor makes axis body 100 rotations.Meanwhile, the insertion pump body 70 that is pressed into axis body 100 lower ends is to be rotated with the same speed of axis body.Piston 40 moves up and down by bump 41 and the relative movement of inserting bump groove 71.At this moment, the rotating force of the piston 40 that produces by the rotation of inserting pump body 70, restrained fully by the piston guide rail.That is, the chock 49 of piston is inserted in and carries out straight line motion up and down in the V-type groove 61 of piston guide rail, so piston 40 carries out straight line motion up and down equally.
The figure that Fig. 9 a is a bump 41 when reaching the peak of bump groove 71 with 71 relative movement of bump groove.At this moment, piston 40 is through the same peak that arrives that moves upward.In this case, the valve 50 that is arranged on piston 40 inside joins the sealing suction port with the face of the suction port 47 that forms piston.At this moment, inserting pump body 70, the cooling machine oil L in the confined space that forms between piston 40 and the valve 50 flows in the boring 73 of inserting pump body.
Then, by the continuous rotation of axis body 100, insert pump body 70 and rotate continuously with axis body 100 equally, at this moment, bump 41 descends along bump groove 71.So piston 40 moves down equally.
Fig. 9 b be bump 41 by with 71 relative movement of bump groove, reach the minimum point of bump groove 71, at this moment, piston 40 is through the same minimum point that arrives that moves upward.In this case, when descending, piston 40 forms the vacuum of short time, so valve 50 arrives the height of valve baffle ring 43 by the boost in pressure of cooling machine oil in the inside of piston.Meanwhile, the suction port 47 of the piston cooling machine oil L that has been opened flows into.Afterwards, cooling machine oil L flows into to boring 73 when rising by piston 40 by inlet hole 51 flow valves 50 of valve and the space between the insertion pump body again.
So whenever axis body 100 rotates a circle, the bump 41 of volumetric oil pump has been finished a back and forth movement of piston 40 through the highs and lows of a bump groove 71.
Flow into the cooling machine oils of boring in 73 flow to axis body be pressed into hole 110 after, the centrifugal force that the rotation by axis body 100 produces is rising to eccentric shaft through oil-through hole and oil groove.At this moment, insert the pump body upper end and be pressed into the parabolic shape that the cooling machine oil L in the hole 110 bloats by centrifugal force formation downwards.So, even piston 40 descends, because cooling machine oil is in the lip 75 that inserts the pump body upper end and is pressed between the hole 110, so prevented that cooling machine oil is to 73 adverse currents of holing.
As mentioned above, second embodiment of the invention arbor purpose is; Climbing power and centrifugal force by utilizing volumetric oil pump make cooling machine oil be fed to oilhole.
In addition, as above the effect of the first embodiment of the invention arbor of omission explanation is identical with the effect of second embodiment of the invention arbor.
Just, the second embodiment of the present invention has been because arbor has possessed insertion pump body 70 in addition, more how long locates and advantage having than first embodiment of the invention arbor aspect the efficiency of supply of cooling machine oil.That is, the climbing power internal diameter of volumetric oil pump is more little favourable more, and is on the contrary, big more favourable more by climbing power internal diameter on characteristic that centrifugal force produces.Because, the big path that is pressed into hole 110 formation cooling machine oils of little boring of internal diameter 73 and the top internal diameter that is arranged on boring 73 is arranged, on the arbor of second embodiment of the invention so can satisfy condition.
Claims (12)
1. compressor shaft that has volumetric oil pump, comprise eccentric shaft (31), equilibrium block (32), axis body (33), oilhole (35), oil groove (36), it is characterized in that: volumetric oil pump is arranged at the bottom of arbor (30), volumetric oil pump is by pump body, the piston of moving element (40), the bump groove (37) of movement conversion portion and bump (41), the valve of switch part (50), piston guide rail (60) and chock (49) are formed, the pump body of hollow cylindrical is positioned at axis body (33) bottom, boring (34) is arranged in the middle of the pump body, the outer peripheral surface of pump body bottom inserts in the hole on piston (40) top, bump groove (37) and bump (41) lay respectively on the outer peripheral surface and endoporus of pump body and piston (40), bump (41) inserts in the bump groove (37), bump groove (37) is the annular recess that tilts with shaft axis, there is cooling machine oil suction port (47) lower end of piston (40), in the hole of piston (40) bottom valve (50) is arranged, hollow cylindrical piston guide rail (60) is positioned at the outside of piston (40), the V-shaped groove (61) of the Kong Zhongyou of piston guide rail (60) and axis parallel, chock (49) is arranged on the outer peripheral surface of piston (40), and chock (49) inserts in the V-shaped groove (61).
2. according to the said compressor shaft that has volumetric oil pump of claim 1, it is characterized in that: the bottom of cylindrical shape axis body (33) is a pump body, boring (34) is arranged in the middle of axis body (33) bottom as pump body, and boring (34) is communicated with the oilhole (35) that is positioned at axis body (33) middle part.
3. according to the said compressor shaft that has volumetric oil pump of claim 1, it is characterized in that: the lower end of axis body (33) is pressed into hole (110) to the height of oilhole (35); The bottom that is pressed into hole (110) is inserted on the top of the plug-in type pump body (70) of hollow cylindrical, and the bottom of plug-in type pump body (70) are in the outside that is pressed into hole (110).
4. according to the said compressor shaft that has volumetric oil pump of claim 1, it is characterized in that: bump groove (37) is positioned on the outer peripheral surface face of pump body, and bump is arranged in the endoporus on piston (40) top.
5. according to the said compressor shaft that has volumetric oil pump of claim 1, it is characterized in that: bump groove (37) is arranged in the endoporus on piston (40) top, and bump is positioned on the outer peripheral surface of pump body.
6. according to the said compressor shaft that has volumetric oil pump of claim 1, it is characterized in that: switch part is arranged on the inside of piston (40), is made of valve (50), and valve (50) is discoid, when piston (40) was mobile, suction port (47) is opened or closed to valve (50).
7. according to the said compressor shaft that has volumetric oil pump of claim 6, it is characterized in that: a plurality of inlet holes (51) are arranged on the valve (50), and when suction port (47) was open, a plurality of inlet holes (51) sucked cooling machine oil.Inlet hole (51) is arranged on than on the big housing parts of piston (40) suction port (47) diameter.
8. according to the said compressor shaft that has volumetric oil pump of claim 1, it is characterized in that: the movement conversion parts also comprise the piston guide rail (60) of restriction piston (40) rotation, piston guide rail (60) is the open hollow cylindricals in both sides, is installed on the outer peripheral surface of piston (40).
9. the said according to Claim 8 compressor shaft that has volumetric oil pump, it is characterized in that: the V-shaped groove (61) with axis parallel is arranged on the inner peripheral surface of piston guide rail (60), the quantity of V-shaped groove (61) is one or more, and on inner peripheral surface, evenly distribute, the outer peripheral surface of piston (40) has the chock (49) of the insertion V-shaped groove (61) of same number.
10. according to the said compressor shaft that has volumetric oil pump of claim 1, it is characterized in that: on the endoporus of piston (40) bottom valve baffle ring (43) is arranged, when suction port (47) is open, the height that valve baffle ring (43) limiter valve (50) rises.
11., it is characterized in that according to the said compressor shaft that has volumetric oil pump of claim 10: valve baffle ring (43) be shaped as annular boss, be arranged on the endoporus of piston (40).
12. according to the said compressor shaft that has volumetric oil pump of claim 3, it is characterized in that: insert the round lip (75) that certain-length is arranged on the pump body, lip (75) is formed by the interior week circle prolongation of boring (73), to prevent the adverse current of cooling machine oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144260 CN1427153A (en) | 2001-12-17 | 2001-12-17 | Compressor shaft having volumetric oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144260 CN1427153A (en) | 2001-12-17 | 2001-12-17 | Compressor shaft having volumetric oil pump |
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| CN1427153A true CN1427153A (en) | 2003-07-02 |
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| CN 01144260 Pending CN1427153A (en) | 2001-12-17 | 2001-12-17 | Compressor shaft having volumetric oil pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100357595C (en) * | 2005-11-19 | 2007-12-26 | 无锡压缩机股份有限公司 | Oil cooling structure for piston rod of piston compressor |
| CN1982714B (en) * | 2005-12-12 | 2010-08-25 | Lg电子株式会社 | Oil pump for scroll compressor |
| WO2011023069A1 (en) * | 2009-08-24 | 2011-03-03 | 浙江鸿友压缩机制造有限公司 | Rotary type reciprocating piston compressor |
| WO2021109087A1 (en) * | 2019-12-04 | 2021-06-10 | 惠州海卓科赛医疗有限公司 | Pumping system |
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2001
- 2001-12-17 CN CN 01144260 patent/CN1427153A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357595C (en) * | 2005-11-19 | 2007-12-26 | 无锡压缩机股份有限公司 | Oil cooling structure for piston rod of piston compressor |
| CN1982714B (en) * | 2005-12-12 | 2010-08-25 | Lg电子株式会社 | Oil pump for scroll compressor |
| WO2011023069A1 (en) * | 2009-08-24 | 2011-03-03 | 浙江鸿友压缩机制造有限公司 | Rotary type reciprocating piston compressor |
| WO2021109087A1 (en) * | 2019-12-04 | 2021-06-10 | 惠州海卓科赛医疗有限公司 | Pumping system |
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