The oil rig of hermetic type compressor
Technical field
The oil rig of hermetic type compressor of the present invention relates to compressor field.
Background technique
The invention relates to the invention of the oil rig aspect of hermetic type compressor.In hermetic type compressor,, lubricant oil is circulated in order to dispel the heat and the heating component and the slide member of lubricated hermetic type compressor inside.For this reason, used oil rig.Oil rig roughly is divided into the oil rig of the viscous force of the oil rig that utilizes the centrifugal force that crankshaft rotation produces and lubricant oil.
Fig. 1 expresses the sectional drawing of the oil rig of prior art hermetic type compressor.As shown in the figure, there is confined space the inside of airtight casing 1.Airtight casing 1 is made up of upper housing and lower casing, and there is confined space inside.
There are compression member and motor in airtight casing 1 inside.Compression member is carried out the compression to refrigerant; Motor provides the driving force of drive compression parts, and is supported on the framework (drawing omits explanation).Frame supported is in airtight casing 1 inside.In pressing chamber, by the driving force of motor, compression member makes piston carry out the straight line back and forth movement, and refrigerant enters pressing chamber or discharged by valve control by pressing chamber simultaneously, finally finishes compression work.
Below electric machine structure is described.Rotor 5 is arranged on airtight casing 1 inside, and the electromagnetic interaction by rotor 5 and stator 3 is rotated, and rotor 5 rotates on framework.Guide plate 4 is arranged on the lower end of stator 3, the U font carriage 13 that will describe below supporting.
In addition, the central authorities of perforation rotor 5 are provided with crankshaft 7.The upper end of crankshaft 7 and the piston of compression member are connected, and transmit the power that produces on the motor.The circular motion of crankshaft 7 is converted to the straight line back and forth movement of piston.
To the bottom that the heating component in the compressor dispels the heat and the lubricant oil 15 of performance lubrication is stored at airtight casing 1 in slide member.In order to send lubricant oil 15 to heating component and slide member, the oil circuit 8 of perforation is arranged in crankshaft 7 inside.Oil circuit 8 is communicated to the top of crankshaft 7 always, and lubricant oil 15 is sent to the top of airtight casing 1.
In addition, the oil circuit by crankshaft 7 inside 8 structure that transmits lubricant oil 15 is formed on the lower end of crankshaft 7.That is to say that oil supply component 9 is arranged on the lower end of crankshaft 7.Oil supply component 9 is a drum, inner up/down perforation.The upper end of oil supply component 9 is pressed into the lower end of crankshaft 7, and the lower end of oil supply component 9 is immersed in the inside of lubricant oil 15.
Oil suction parts 11 are arranged on oil supply component 9 inside.The spiral slot that guiding lubricant oil 15 is arranged along oil suction parts 11 outer peripheral surfaces.Oil suction parts 11 are supported in the oil supply component 9 by U font carriage 13, and oil suction parts 11 do not rotate.
In the central authorities of U font carriage 13, have certain flexible U font carriage 13 and be connected with oil suction parts 11, supporting oil suction parts 11, U font carriage 13 prolongs the side plate 14 that forms with the U font to two ends, and side plate 14 hangs on the guide plate 4.
Oil rig working condition to prior art hermetic type compressor with said structure describes below.
During Driven Compressor to the compression member supply with compressed refrigerant.In addition, drive motor, by the electromagnetic interaction between stator 3 and the rotor 5, rotor 5, rotation simultaneously is pressed into the crankshaft 7 on the rotor 5, gives compression member with transmission of power, finally finishes compression work.
Below, to the rotation by crankshaft 7, the process that lubricant oil 15 is made progress pumping describes.That is to say that the oil supply component 9 that the lower end is immersed in lubricant oil 15 inside is rotated with crankshaft 7.At this moment, oil suction parts 11 do not rotate.This be because, oil suction parts 11 are supported on the U font carriage 13, U font carriage 13 is fixed on the stator 3.
Oil suction parts 11 are fixed, and oil supply component 9 is rotated, and by the viscous force of lubricant oil 15, along the spiral chute that the is formed on oil suction parts 11 outsides pumping lubricant oil 15 that makes progress, and are sent to oil circuit 8.Dispersing in the top that the lubricant oil 15 that is sent to oil circuit 8 upwards is pumped into crankshaft 7, sends slide member and heating component to, carries out lubricated and thermolysis.
But the oil rig with prior art hermetic type compressor of said structure but has following shortcoming.
That is to say, when using elastic U font carriage 13 owing to be arranged on the oil suction parts 11 of oil supply component 9 inside and the inaccuracy that install in the gap between the oil supply component 9, make lubricant oil 15 upwards pumping is not smooth.This be because, the very long and shortcoming that causes of side plate 14 sizes at U font carriage 13 two ends.
In addition, because oil suction parts 11 non-rotary fixing, so oil suction parts 11 and oil supply component 9 can not be constituted an integral body.That is to say, at first oil supply component 9 is pressed into the lower end that is arranged on crankshaft 7, will be inserted in after oil supply component 9 inside, U font carriage 13 could be fixed on the guide plate 4, make troubles to assembling operation with the oil suction parts 11 that U font carriage 13 links
Summary of the invention
Technical problem to be solved by this invention is: a kind of oil rig of hermetic type compressor is provided, can have made the lubricated oil supplying of heat radiation and lubrication more unimpeded, and improve the assembling operation efficient of oil rig.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: oil rig comprises crankshaft, oil supply component, the cylindric oil suction parts of spiral fluted are arranged on the outer peripheral surface, be arranged between the inner peripheral surface of non-rotary oil suction parts in the oil supply component through hole and oil supply component and keep certain interval; The supporting portion of oil rig is made of stationary platen and supported spring; Stationary platen is fixed on the bottom surface of airtight casing; Supported spring is supported on the stationary platen; Be provided with supporting and space from the lower to the upper in the inside of oil suction parts, the inside of oil suction parts is inserted in the upper end of supporting portion, by elastic force with the oil suction member supporting in the inner peripheral surface of oil supply component.
Described fixedly holder is arranged on the inner upper end of supporting and space, prevents the rotation of oil suction parts.
The invention has the beneficial effects as follows, by the oil suction parts in the elastic force support oil supply component of supported spring, can correctly keep the assembled state between oil supply component and the oil suction parts all the time, can make the lubricated oil supplying of heat radiation and lubrication more unimpeded, improve the functional reliability of oil rig.And oil rig integral body can be put into Assembly line as an assembly body, the efficient of assembling operation is improved.
Description of drawings
Fig. 1 expresses the sectional drawing of the oil rig of prior art hermetic type compressor.
Fig. 2 expresses the sectional drawing of oil rig of the hermetic type compressor of the embodiment of the invention.
Fig. 3 expresses the sectional drawing of A-A ' section of Fig. 2 of embodiment of the invention major component structure.
In the drawings
1. airtight casing 3. stators
5. rotor 7. crankshafts
8. oil circuit 9. oil supply components
11. oil suction parts 13.U font carriage
14,14 '. sidewall 15. lubricant oil
30. crankshaft 32. oil circuits
40. oil supply component 42. through holes
50. oil suction parts 52. spiral chutes
54. supporting and space 55. fixing holders
60. supported spring 62. stationary platens
Embodiment
Be described in further detail below in conjunction with the oil rig of the drawings and specific embodiments to hermetic type compressor of the present invention: as shown in Figures 2 and 3, the outward appearance of compressor is made of airtight casing 1.Airtight casing 1 generally is made up of upper housing and lower casing.Airtight casing 1 inside is provided with the various parts that constitute compressor.That is to say, be provided with to compressor the motor of power and the compression member that refrigerant is compressed are provided.
Crankshaft 30 is arranged on the rotor of motor and rotates with the rotor of motor, gives compression member with transmission of power.In crankshaft 30 inside oil circuit 32 is arranged.By oil circuit 32 lubricant oil 15 of airtight casing 1 bottom is pumped into top, compression member and motor are dispelled the heat and lubricate.
Below oil circuit 32 is described the structure that lubricant oil 15 carries out pumping.Oil supply component 40 is pressed into the lower end of crankshaft 30.There is through hole 42 inside of oil supply component 40, through hole up/down perforation oil supply component 40.
Oil suction parts 50 are positioned at oil supply component 40 inside.The inner peripheral surface of the outer peripheral surface of oil suction parts 50 and oil supply component 40 keeps certain interval.Along outer peripheral surface spiral chute 52 is arranged on the oil suction parts 50, spiral chute 52 is paths of guiding lubricant oil 15.Spiral chute 52 forms spirality along oil suction parts outer peripheral surface.There is supporting and space 54 inside of oil suction parts 50, and supporting and space 54 is positioned at oil suction parts 50 inside, and the supported spring 60 that will describe below is positioned at supporting and space 54.The upper inside that is preferably in supporting and space 54 is provided with fixing holder (55), and fixing holder (55) prevents that oil suction parts 50 relative supported springs 60 are rotated.
The supporting and space 54 inner supported springs 60 that insert to oil suction parts 50 are supporting oil suction parts 50, and the bottom of supported spring 60 is attached on the stationary platen 62, and stationary platen 62 is fixed on the bottom surface of airtight casing 1.Supported spring 60 imposes on oil suction parts 50 with certain elastic force, makes oil suction parts 50 how much be close to the inner peripheral surface of oil supply component 40, and can keep certain clearance.
Effect to the oil rig of hermetic type compressor of the present invention with said structure describes below.
At first, the assembling to oil rig of the present invention describes.Oil supply component 40 is pressed in the crankshaft 30.In addition, the lower end of supported spring 60 is supported on the stationary platen 62.
Supported spring 60 is inserted in the supporting and space 54, oil suction parts 50 are arranged on the supported spring 60.At this moment, oil suction parts 50 insert under the state of supported spring 60, rotate to an angle, because the front end of supported spring 60 hangs in the fixing holder 55, oil suction parts 50 relative supported springs 60 are not rotated.
Oil suction parts 50 are inserted in the through hole 42 of oil supply component 40, the through hole 42 of oil supply component 40 is pressed into again on the crankshaft 30, has just finished the assembling of oil rig.Certainly, the state that also oil suction parts 50 can be inserted oil supply component 40 is assembled supported spring 60 down.
Working procedure to the oil rig of hermetic type compressor of the present invention with above-mentioned package assembly describes below.Driven Compressor, the rotary crank axle 30 by motor is rotated; In compression member, carry out the compression of refrigerant; Oil circuit 32 by crankshaft 30 is pumped into top with lubricant oil 15.
That is to say that because oil supply component 40 and the rotation of crankshaft 30 one, oil suction parts 50 are arranged in the through hole 42 of oil supply component 40 with rotation status not, make lubricant oil be pumped into top along the spiral chute 52 of oil suction parts 50.
Lubricant oil 15 along the spiral chute pumping flows out from oil supply component 40, rises along oil circuit 32 continuation of crankshaft 30, sends heating component and slide member to, carries out heat radiation and lubrication.
The elastic force of oil suction parts 50 by supported spring 60 that is arranged in the through hole 42 of oil supply component 40 supporting, and remains certain interval between oil supply component 40 inner peripheral surfaces.So, can guarantee that at the driving initial stage lubricant oil accurately supplies especially.Even compressor body rocks, the resiliently deformable by supported spring 60 absorbs the impact that passes over, and can not change the location status of the oil supply component 40 that is arranged on the crankshaft 30.