CN103982437B - Displacement type compressor - Google Patents
Displacement type compressor Download PDFInfo
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- CN103982437B CN103982437B CN201310388424.5A CN201310388424A CN103982437B CN 103982437 B CN103982437 B CN 103982437B CN 201310388424 A CN201310388424 A CN 201310388424A CN 103982437 B CN103982437 B CN 103982437B
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Abstract
The present invention provides a kind of displacement type compressor, it electrical components (3) including being arranged on closed container (2)；Rotary shaft (6)；Scroll compression component (4)；Rotationally support first bearing support (7) of rotary shaft (6)；Rotationally support second bearing support (10) of the lower end of rotary shaft (6)；Accumulate the oil storage portion (2a) of lubricating oil (8)；The longitudinal oil supplying hole (12) arranged with through rotary shaft (6), second bearing support (10) has the bearing of journals (10a) and thrust bearing (10d), sliding surface at thrust bearing (10d) Yu rotary shaft (6) is provided with thrust fuel feeding path, the lubricating oil (8) of oil storage portion (2a) is supplied to thrust fuel feeding path through the horizontal oil supplying hole (21) of radial direction from longitudinal oil supplying hole (12), is achieved in higher reliability.
Description
Technical field
The present invention relates to such as be loaded in the displacement type compressor of air-conditioning, refrigerator etc., further,
Relate to the greasy property by improving bearing sliding part and improve the displacement type compression of efficiency and reliability
Machine.
Background technology
In the prior art, use displacement type compressor as the system constituting conditioner etc.
The compressor of SAPMAC method.
Fig. 4 is the longitudinal section of existing vortex (scroll) type compressor.Displacement type compressor
The representational Scrawl compressor 1 for example, structure (patent document 1) shown in Fig. 4.?
The closed container 2 of the tubular that two ends are blocked, is built-in with electrical components 3 and scroll compression component 4.
Electrical components 3 includes the stator 3a being fixed on the internal face side of closed container 2 and is being propped up
Hold the rotor 3b and rotor 3b in the inner side of this stator 3a rotatable.Through at rotor 3b
It is fixed with rotary shaft 6.The upper end of this rotary shaft 6 is rotatably configured scroll compression structure
First bearing support 7 of a part for part 4 supports.The lower section of rotary shaft 6 highlights from rotor 3b,
Lower end is rotatably supported by the second bearing support 10.And, in the lower section of rotary shaft 6
End is provided with oil suction line 9.In the inside of rotary shaft 6, it is formed the most through
Longitudinal oil supplying hole 12.Longitudinal oil supplying hole 12 is eccentrically formed from the center of rotary shaft 6.Airtight
The bottom of container 2, is formed with the oil storage portion 2a accumulating lubricating oil 8.Oil suction line 9 is to submerge
The mode of the lubricating oil 8 of oil storage portion 2a is arranged.Lubricating oil 8 is rotated in oil along with rotary shaft 6
Rotate in suction line 9, by the centrifugal force produced by rotation, make oil suction line 9 increase and go forward side by side
One step is risen, to eccentric shaft bearing portion 14 fuel feeding by longitudinal oil supplying hole 12.
At the second bearing support 10, including the countershaft of the radial load (load) of supporting rotating shaft 6
Hold (axle journal (journal) bearing) 10a, jewel 10b and supporting thrust (thrust) load
Thrust bearing 10d.Supplementary bearing (bearing of journals) 10a is fixed on by frame support 10c
Closed container 2.Additionally, along with the lubricating oil 8 of the rotation oil storage portion 2a of rotary shaft 6 is inhaled from oil
The lower end suction inlet entering pipe 9 is inhaled into, through longitudinal oil supplying hole 12 be supplied to supplementary bearing 10a and
Each sliding part of the first bearing support 7 grade, returns via the gap of the inner side of closed container 2 afterwards
Oil storage portion 2a, circulates therefrom.
And, an end of the rotary shaft 6 being supported by through first bearing support 7, shape
The eccentric shaft (crank portion) 13 that the axle center of Cheng Youcong rotary shaft 6 is eccentric.In shake scroll 4a
The central portion of a side (with the face of fixed scroll 5a opposite side described later) be formed
The eccentric shaft bearing portion 14 of protruding (boss) shape.Eccentric shaft 13 is connected in eccentric shaft bearing portion 14.?
The side of the opposing party of shake scroll 4a is (with fixed scroll 5a phase the same side described later
Face) it is integrally formed with clinch (lap) 4b of swirl shape.Additionally, at the first bearing support
7, it is combined with fixed scroll 5a.In this fixed scroll 5a, with shake scroll 4a face
To the clinch 5b being formed in part with swirl shape, be formed with through two sides at central portion
The outlet 17 arranged.And, clinch 4b, 5b the multiple discharge chambes 15 formed, from
Peripheral part sucks the low voltage refrigeration of the low-voltage space 2c being accommodated in closed container 2 from suction line 16
Agent gas, makes smaller volume press by gradually moving to center along with the rotation of rotary shaft 6
Contraction refrigerant gas.The refrigerant gas compressed is expelled to closed container 2 from outlet 17
High-pressure space 2b, discharges from discharge pipe 18.
Fig. 5 is the longitudinal section near the second bearing support of existing Scrawl compressor.Such as Fig. 5
Shown in, jewel 10b it is pressed in the inner surface side of supplementary bearing 10a.The interior table of jewel 10b
The outer peripheral face of face and rotary shaft 6 slides.In rotary shaft 6, exist communicatively with longitudinal oil supplying hole 12
Radial direction penetrates and is provided with horizontal oil supplying hole 21.Further, in the periphery of rotary shaft 6 at axle
The upwardly extending axle journal oil supply tank 22 in side connects with horizontal oil supplying hole 21.From longitudinal oil supplying hole 12
Lubricating oil 8 is supplied to the sliding part of jewel 10b.Axle journal oil supply tank 22 from jewel 10b to
Extend above ground opening.The lower section of axle journal oil supply tank 22 closes in jewel 10b.In this confession
In oil structure, as shown in arrow a, b, c in Fig. 5, lubricating oil 8 is from longitudinal oil supplying hole 12
By lubricating the sliding part of supplementary bearing 10a above the horizontal oil supplying hole 21(arrow b) flow direction, it
After, from top, (arrow c) is discharged.In the lower section of jewel 10b, it is provided with and thrust shaft
Hold the trapped fuel space 23 that the surrounding of 10d communicates, from the bearing clearance of jewel 10b downwards
The lubricating oil that trapped fuel space 23 spills discharge from oil discharge hole 24 oil storage portion 2a downwards so that
Must be not filled with being stuck in trapped fuel space 23(with reference to arrow d) in figure.
But, in the structure shown here, lower section only at the upper opening of figure, is stopped by oil discharge hole 24
Thrust bearing 10d, is only capable of supply and spills from the gap of jewel 10b with the sliding surface of rotary shaft 6
Lubricating oil, need to securely feed the lubricating oil of enough amounts.
Accordingly, it is desirable to provide a kind of displacement type compressor, this displacement type compressor can be by filling
The fuel delivery dividing the sliding surface of the thrust guaranteeing thrust bearing 10d or rotary shaft 6 makes greasy property
Well, thus realized the raising of performance by the minimizing of slippage loss, further, want in lubrication
Ask and also be able to realize wear-resistant and resistance to sintering under higher operating condition (seize, rubbing surface is because rubbing
Wipe and generate heat and cause metal melting and adhesive surface) raising of performance and realize the raising of reliability.
Look-ahead technique document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 11-182473 publication
Summary of the invention
The problem that invention is to be solved
It is an object of the invention to provide a kind of displacement type compressor, this displacement type compressor passes through
Arrange and connect from longitudinal oil supplying hole of rotary shaft, realize at the fuel feeding path of thrust sliding surface opening
Reliable fuel feeding to thrust bearing, thus improve the greasy property of thrust bearing, it is achieved efficiently
Rate and high reliability.
For the method solving problem
That is, in order to solve the problems referred to above, the displacement type compressor of the present invention is characterised by, tool
Have: the electrical components being arranged in closed container；The rotation driven is rotated by above-mentioned electrical components
Axle；It is arranged on the top of above-mentioned electrical components, by the shaft-driven compression element of above-mentioned rotation；If
Put between above-mentioned electrical components and above-mentioned compression element, be fixed on above-mentioned closed container inward turning
Turn the first bearing support supporting above-mentioned rotary shaft；Rotationally support in being fixed on above-mentioned closed container
Second bearing support of the lower end of above-mentioned rotary shaft；Profit is accumulated in the bottom of above-mentioned closed container
The oil storage portion of lubricating oil；It is vertical that above-mentioned rotary shaft through with the lower section end face from above-mentioned rotary shaft is arranged
To oil supplying hole, the most above-mentioned second bearing support has the axle journal bearing above-mentioned power radially of the axis of rotation
Bearing and bear the thrust bearing of thrust of above-mentioned rotary shaft, in above-mentioned thrust bearing and above-mentioned rotation
The sliding surface of rotating shaft is provided with thrust fuel feeding path, by the lubricating oil in above-mentioned oil storage portion from above-mentioned vertical
Supply to the horizontal oil supplying hole of the configured radial direction in above-mentioned rotary shaft of oil supplying hole and stop to above-mentioned
Push away fuel feeding path.
Additionally, in order to solve the problems referred to above, in the displacement type compressor of the present invention, at above-mentioned axle
The sliding surface of journal bearing and above-mentioned rotary shaft is provided with axle journal fuel feeding path, by above-mentioned lubricating oil from
Above-mentioned horizontal oil supplying hole is through above-mentioned axle journal fuel feeding path supply extremely above-mentioned thrust fuel feeding path.
Additionally, in order to solve the problems referred to above, in the displacement type compressor of the present invention, above-mentioned thrust
Bearing is arranged on the lower surface of the above-mentioned bearing of journals, at the sliding surface of above-mentioned thrust bearing, towards
The radial direction of above-mentioned rotary shaft arranges above-mentioned thrust fuel feeding path.
Additionally, in order to solve the problems referred to above, in the displacement type compressor of the present invention, above-mentioned thrust
Bearing is arranged on the upper surface of the above-mentioned bearing of journals, in the above-mentioned rotation of the stage portion of above-mentioned rotary shaft
The thrust sliding surface of rotating shaft side, arranges above-mentioned thrust towards the radial direction of above-mentioned rotary shaft and supplies
Oil path.
Invention effect
Displacement type compressor according to the present invention, it is possible to through connecting with longitudinal oil supplying hole of rotary shaft
Horizontal oil supplying hole, by the confession that arranges of the ground of the sliding surface opening at the bearing of journals and thrust bearing
Oil path reliably supplies lubricating oil to two bearing sliding surfaces, and can be with easy structure
Realize fuel feeding path, it is possible to high productivity and provide high efficiency and reliability at a low price
High displacement type compressor.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the vicinity of the second bearing support of embodiments of the present invention 1.
Fig. 2 is the longitudinal section of the vicinity of the second bearing support of embodiments of the present invention 2.
Fig. 3 is the longitudinal section of the vicinity of the second bearing support of embodiments of the present invention 3.
Fig. 4 is the longitudinal section of existing Scrawl compressor.
Fig. 5 is the longitudinal section of the vicinity of the second bearing support of existing Scrawl compressor.
Reference numeral explanation
1 Scrawl compressor
2 closed containers
2a oil storage portion
2b high-pressure space (discharges pressure)
2c low-voltage space (sucks pressure)
3 electrical components
3a stator
3b rotor
4 scroll compression components
4a shakes scroll
4b clinch
5a fixed scroll
5b clinch
6 rotary shafts
7 first bearing supports
8 lubricating oil
9 oil suction lines
10 second bearing supports
10a supplementary bearing
10b jewel
10c frame support
10d thrust bearing (thrust plate)
12 longitudinal oil supplying holes
13 eccentric shafts
14 eccentric shaft bearing portion
15 discharge chambes
16 suction lines
17 outlets
18 discharge pipes
21 horizontal oil supplying holes
22 axle journal oil supply tanks
23 trapped fuel spaces
24 oil discharge holes
25 horizontal oil supplying holes
26,30 thrust fuel feeding path
28,29 axle journal oil supply tank
27 oil drain passageways
31 stage portion
Detailed description of the invention
First invention is a kind of displacement type compressor, it is characterised in that have: be arranged on airtight
Electrical components in container；The rotary shaft driven is rotated by above-mentioned electrical components；It is arranged on above-mentioned
The top of electrical components, by the shaft-driven compression element of above-mentioned rotation；It is arranged on above-mentioned electronic structure
Between part and above-mentioned compression element, be fixed on above-mentioned closed container in rotationally support above-mentioned rotation
First bearing support of axle；Rotationally support under above-mentioned rotary shaft in being fixed on above-mentioned closed container
Second bearing support in square end portion；The oil storage portion of lubricating oil is accumulated in the bottom of above-mentioned closed container；
Longitudinal oil supplying hole that above-mentioned rotary shaft through with the lower section end face from above-mentioned rotary shaft is arranged, wherein
Above-mentioned second bearing support has and bears the bearing of journals of above-mentioned power radially of the axis of rotation and bear above-mentioned
The thrust bearing of the thrust of rotary shaft, the sliding surface at above-mentioned thrust bearing with above-mentioned rotary shaft sets
It is equipped with thrust fuel feeding path, the lubricating oil in above-mentioned oil storage portion is configured from above-mentioned longitudinal oil supplying hole
Horizontal oil supplying hole supply extremely above-mentioned thrust fuel feeding path at the radial direction of above-mentioned rotary shaft.
According to this structure, lead to by arranging thrust fuel feeding at the sliding surface of thrust bearing Yu rotary shaft
Road, by the lubricating oil in oil storage portion from the horizontal stroke of longitudinal configured radial direction in rotary shaft of oil supplying hole
Supply to thrust fuel feeding path to oil supplying hole such that it is able to the foot of axial thrust bearing supply more reliably
Enough lubricating oil, it is possible to reduce the loss of sliding part, additionally it is possible to prevents abrasion and sintering,
Efficiency and reliability can be improved.
Second invention is especially in the first invention, in the above-mentioned bearing of journals and above-mentioned rotary shaft
Sliding surface is provided with axle journal fuel feeding path, by above-mentioned lubricating oil from above-mentioned horizontal oil supplying hole through above-mentioned
The supply of axle journal fuel feeding path is to above-mentioned thrust fuel feeding path.
According to this structure, by by lubricating oil from horizontal oil supplying hole through the supply of axle journal fuel feeding path to
Thrust fuel feeding path, it is possible to steadily and reliably to two bearing supply lubricating oil, it is possible to
Reduce the loss of sliding part, further, additionally it is possible to prevent abrasion and sintering, it is possible to increase efficiency
And reliability.
3rd invention is in the first or second invention, and above-mentioned thrust bearing is arranged on above-mentioned axle journal
The lower surface of bearing, at the sliding surface of above-mentioned thrust bearing, towards the radius side of above-mentioned rotary shaft
To arranging above-mentioned thrust fuel feeding path.
According to this structure, thrust fuel feeding path is arranged on the second bearing support, so at thrust fuel feeding
In the lubricating oil of flow channels, centrifugal force does not plays a role, it is possible to easily from thrust bearing
Periphery flow to center direction.Therefore, bottom and the flow direction of rotary shaft it is positioned at thrust bearing
The fuel feeding of thrust bearing is in the case of periphery flows to center direction, it is also possible to carry no problemly
For enough fuel feeding, it is possible to simple Stability Analysis of Structures and securely feed lubricating oil, so energy
Enough reduce the loss of sliding part, further, additionally it is possible to prevent abrasion and sintering, it is possible to increase effect
Rate and reliability.
4th invention is in the first or second invention, and above-mentioned thrust bearing is arranged on above-mentioned axle journal
The upper surface of bearing, the thrust in the above-mentioned rotary shaft side of the stage portion of above-mentioned rotary shaft is slided
Face, arranges above-mentioned thrust fuel feeding path towards the radial direction of above-mentioned rotary shaft.
According to this structure, above the bearing of journals, only it is arranged on the stage portion existence of rotary shaft
Thrust bearing, is arranged thrust fuel feeding path to sliding surface opening in rotary shaft side, so
Side, thrust fuel feeding path Nei Cong center flows to be centrifuged in the flowing direction in the lubricating oil of outer circumferential side
Power plays a role, it is possible to preferably supply lubricating oil, so accelerating in the flowing direction, so
The loss of sliding part can be reduced, further, additionally it is possible to prevent abrasion and sintering, it is possible to increase
Efficiency and reliability.
Hereinafter, referring to the drawings embodiments of the present invention are illustrated.It addition, the present invention is also
It is not limited to this embodiment.It addition, it is not shown partially due to the pressure of conventional example with Fig. 4
Contracting machine is identical and omits the description.Additionally, have the portion of the function identical with the compressor of conventional example
The reference that minute mark note is identical with Fig. 4 and Fig. 5, omits the description.
(embodiment 1)
Use Fig. 1 that embodiments of the present invention 1 are illustrated.Fig. 1 is the enforcement of the present invention
The longitudinal section of the vicinity of the second bearing support of mode 1.
Jewel 10b it is pressed in the inner surface side of supplementary bearing (bearing of journals) 10a.Jewel
The inner surface of 10b slides with the outer peripheral face of rotary shaft 6.Penetrate in the radial direction in rotary shaft 6
It is provided with the horizontal oil supplying hole 21 connected with longitudinal oil supplying hole 12.This horizontal oil supplying hole 21 will be vertical
To oil supplying hole 12 with the axle journal oil supply tank 22 extended in axial direction in the periphery of rotary shaft 6 even
Logical.Axle journal oil supply tank 22 extends in low-voltage space 2c opening upward from jewel 10b.Axle
The lower section of neck oil supply tank 22 closes in jewel 10b.
Therefore, as shown in arrow a, b, the c in Fig. 1, due to because of rotary shaft 6
The principle of the centrifugal pump rotated and produce, the lubricating oil of the oil storage portion 2a of the bottom of closed container 2
8 in the operating of Scrawl compressor 1 from oil suction line 9 lower direction longitudinal direction oil supplying hole 12 on
Side is picked up (arrow a).In longitudinal oil supplying hole 12, a part for the lubricating oil 8 of flowing is from vertical
To oil supplying hole 12 by horizontal oil supplying hole 21(arrow b), flow upward at axle journal oil supply tank 22
Dynamic, the sliding part of lubrication jewel 10b, leave above (arrow from axle journal oil supply tank 22 afterwards
Head c), returns the oil storage portion 2a of bottom afterwards.
On the other hand, the lower section of the jewel 10b inside supplementary bearing 10a, it is provided with and stops
The trapped fuel space 23 that the surrounding of thrust bearing 10d communicates.Trapped fuel space 23 is by rotary shaft 6
Radial direction on penetrate the horizontal oil supplying hole 25 of setting and connect with longitudinal oil supplying hole 12.Only
Thrust bearing 10d, at the sliding surface opening of rotary shaft 6 and thrust bearing 10d in the half of rotary shaft 6
The upwardly extending thrust in footpath side fuel feeding path 26, is arranged communicatively with trapped fuel space 23.By only
Push away fuel feeding path 26, oil suction line 9 and thrust bearing 10d between oily drain passageway 27 connect
To low-voltage space 2c.
Therefore, as shown in arrow a, d, the e in Fig. 1, from oil storage portion, 2a flows through vertical
Deposited by horizontal oil supplying hole 25(arrow d) inflow to a part for the lubricating oil 8 of oil supplying hole 12
Oil space 23, flows to the center position of rotary shaft 6 in thrust fuel feeding path 26 and lubricates thrust
The sliding part of bearing 10d, is discharged to oil storage portion 2a(arrow by oil drain passageway 27 afterwards
E).
According to present embodiment, lubricating oil 8 is securely fed the slip to thrust bearing 10d
Face, it is possible to guarantee the good profit of the thrust sliding part of thrust bearing 10d and rotary shaft 6
Sliding state, it is possible to suppression thrust slippage loss.And, additionally it is possible to suppression thrust bearing 10d with
The generation of the abrasion of the thrust sliding part of rotary shaft 6 and sintering etc..Therefore provide and be capable of effect
The raising of rate and the displacement type compressor of the raising of reliability.
Although it addition, the thrust that thrust fuel feeding path 26 can be arranged on the end face of rotary shaft 6 is sliding
Dynamic side, face, but due in the flow direction phase with the lubricating oil 8 in thrust fuel feeding path 26
Anti-direction centrifugal force is had an effect, so being arranged on thrust shaft as the embodiment of Fig. 1
The sliding surface side holding 10d is easier to ensure that fuel delivery, it is possible to more definitely, stably to only
Push away sliding surface fuel feeding.
(embodiment 2)
Then, use Fig. 2 that embodiments of the present invention 2 are illustrated.Fig. 2 is the present invention
The longitudinal section of vicinity of the second bearing support of embodiment 2.
Embodiment 2 is from the different of embodiment 1, in the outer circumferential axis side of rotary shaft 6
Upwardly extending axle journal oil supply tank 28, extends downwards and trapped fuel space 23 from jewel 10b
Connection, the top of axle journal oil supply tank 28 closes in jewel 10b.Additionally, do not possess connection
The horizontal oil supplying hole 25(of trapped fuel space 23 and longitudinal oil supplying hole 12 is with reference to embodiment 1).
In the structure shown here, as shown in arrow a, b, c in Fig. 2, due to because of rotary shaft 6
The principle of the centrifugal pump rotated and produce, the lubricating oil of the oil storage portion 2a of the bottom of closed container 2
8 pass through longitudinal oil supplying hole 12 from the lower section of oil suction line 9 in the operating of Scrawl compressor 1
Picked up (arrow a) upward.One of the lubricating oil 8 flowed in this longitudinal direction oil supplying hole 12
Point from longitudinal oil supplying hole 12 by horizontal oil supplying hole 21(arrow b), axle journal oil supply tank 22 to
Flowing underneath, the sliding part of lubrication jewel 10b, flow into trapped fuel space 23 afterwards, in thrust
Flow to the center position of rotary shaft 6 among fuel feeding path 26 and lubricate thrust bearing 10d's
Sliding part, is discharged (arrow c) by oil drain passageway 27 to oil storage portion 2a afterwards.
According to present embodiment, from longitudinal oil supplying hole 12 to jewel 10b and thrust bearing 10d
Fuel supply path become a path, so from the situation of the embodiment 1 becoming different path
Compare and can guarantee more to flow to jewel 10b and thrust bearing 10d from longitudinal oil supplying hole 12
Fuel delivery.It is additionally, since reliably to the sliding surface of jewel 10b Yu thrust bearing 10d
Supply lubricating oil 8, it is possible at jewel 10b and thrust bearing 10d each and rotary shaft 6
Sliding part guarantee good lubricating status, it is possible to suppression sliding part slippage loss.Further,
Abrasion and the sintering etc. of the thrust sliding part of thrust bearing 10d and rotary shaft 6 can also be suppressed
Occur.Therefore, it is possible to provide can realize further compared with embodiment 1 efficiency raising and
The displacement type compressor of the raising of reliability.
(embodiment 3)
Then, use Fig. 3 that embodiments of the present invention 3 are illustrated.Fig. 3 is the present invention
The longitudinal section of vicinity of the second bearing support of embodiment 3.
Different from embodiment 1,2 are, thrust bearing 10d is positioned at the upper of jewel 10b
Side, utilizes thrust bearing 10d thrust bearing to be slidably arranged in the end of stage portion 31 of rotary shaft 6
Face.
The axle journal oil supply tank 29 extended in axial direction in the periphery of rotary shaft 6, from jewel 10b
Extend upward, connect with thrust fuel feeding path 30.The lower section of axle journal oil supply tank 29 is at bearing
Guan Bi in lining 10b.Additionally, thrust fuel feeding path 30 is in stage portion 31 side of rotary shaft 6
Arrange towards radial direction to thrust sliding surface opening, connect with axle journal oil supply tank 29.
And, as shown in arrow a, b, c in Fig. 3, firstly, since because Scrawl compresses
The rotation of the rotary shaft 6 of machine 1 and the principle of centrifugal pump that produces, the bottom of closed container 2
The lubricating oil 8 of oil storage portion 2a is from the top underneath towards longitudinal oil supplying hole 12 of oil suction line 9
Picked up (arrow a).In this longitudinal direction oil supplying hole 12, a part for the lubricating oil 8 of flowing is from vertical
To oil supplying hole 12 by horizontal oil supplying hole 21(arrow b), flow upward at axle journal oil supply tank 29
Dynamic, the sliding part of lubrication jewel 10b, from rotary shaft 6 among thrust fuel feeding path 30
Flowing to peripheral direction and lubricate the sliding part of thrust bearing 10d in center, supplies from thrust afterwards
The outlet of oil path 30 is discharged (arrow c) to oil storage portion 2a.
According to present embodiment, it is disposed over rotation at thrust bearing 10d at jewel 10b
In the case of the end face of the stage portion 31 of rotating shaft 6, it is also possible to make from longitudinal oil supplying hole 12 to
The fuel supply path of jewel 10b and thrust bearing 10d is configured to a path, thus with become
The situation of the embodiment 1 in different paths is compared and can be guaranteed more to flow from longitudinal oil supplying hole 12
To jewel 10b and the fuel delivery of thrust bearing 10d.Additionally, by by thrust fuel feeding path
The thrust sliding surface side of 30 stage portion 31 being arranged on rotary shaft 6 so that with thrust fuel feeding
The direction centrifugal force that the flow direction of the lubricating oil 8 in path 30 is identical is had an effect, easily profit
The fuel delivery of flowing in thrust fuel feeding path 30 is guaranteed, it is possible to more reliable with the effect of centrifugal pump
And stably to thrust sliding surface fuel feeding.
That is, due to reliably to the sliding surface supply lubrication of jewel 10b and thrust bearing 10d
Oil 8, it is possible at jewel 10b and thrust bearing 10d each and the sliding part of rotary shaft 6
Guarantee good lubricating status, it is possible to the slippage loss of suppression sliding part.And, additionally it is possible to press down
Prevent the generation of abrasion and the sintering etc. of the thrust sliding part of thrust bearing 10d and rotary shaft 6.Cause
This, using the teaching of the invention it is possible to provide the displacement type pressure of the raising of efficiency and the raising of reliability can be realized further
Contracting machine.
It addition, the thrust fuel feeding path 30 extended in the radial direction is not limited to wide certainly
The linearity of degree, radial, helical form, stepped etc. also is able to obtain effect same as described above
Really.Particularly in the case of arranging spiral helicine thrust fuel feeding path 30, by by vortex side
To selecting positive and negative relative to the rotation of rotary shaft 6, it is possible to the profit in thrust fuel feeding path 30
The identical direction of flowing of lubricating oil 8 makes viscous force play a role, and it is possible to more guarantee fuel feeding
Amount.
The most in the context of fig. 3, by the rotation side of vortex during with order in terms of sliding surface side
Direction of rotation to (from the direction of rotation in centrally directed outside) Yu rotary shaft 6 is rightabout
Mode Vorticose thrust fuel feeding path 30 is set, it is possible to make viscous force in peripheral direction,
Play a role to the direction of lubricating oil flow, more guarantee fuel delivery.
On the other hand, in the case of figure 1, by vortex during with order in terms of sliding surface side
Direction of rotation (from the direction of rotation in centrally directed outside) is phase with the direction of rotation of rotary shaft 6
Equidirectional mode arranges Vorticose thrust fuel feeding path 30, it is possible to make viscous force to lubricating oil
The center position of the rotary shaft 6 of flowing plays a role, and more guarantees fuel delivery.
If it addition, the thrust fuel feeding path 30 of Fig. 3 is arranged on the end face of thrust bearing 10d
Thrust sliding surface side, also is able to obtain effect same as described above certainly.
Possibility is utilized in industry
As it has been described above, the displacement type compressor of the present invention is owing to can improve the direction of principal axis of rotary shaft
The greasy property of the thrust bearing of supporting, raising effect and reliability, so being not limited to vortex
Type compressor, additionally it is possible to be widely used in air-conditioning, refrigerator isometric(al) type compressor.
Claims (1)
1. a displacement type compressor, it is characterised in that including:
The electrical components being arranged in closed container；
The rotary shaft driven is rotated by described electrical components；
It is arranged on the top of described electrical components, by the shaft-driven compression element of described rotation；
It is arranged between described electrical components and described compression element, is fixed on described airtight appearance
The first bearing support of described rotary shaft is rotationally supported in device；
Rotationally support in being fixed on described closed container described rotary shaft lower end second
Bearing support；
The oil storage portion of lubricating oil is accumulated in the bottom of described closed container；With
The longitudinal oil supplying hole arranged from the through described rotary shaft of the lower section end face of described rotary shaft, warp
By described longitudinal oil supplying hole, described lubricating oil is delivered to each sliding part, wherein
Described second bearing support have bear described in the bearing of journals of power and bearing radially of the axis of rotation
The thrust bearing of the thrust of described rotary shaft,
The axially extended axle journal fuel feeding in described rotary shaft it is provided with in the periphery of described rotary shaft
Path,
Described rotary shaft radial direction extend thrust fuel feeding path, described rotary shaft with
The sliding surface opening of described thrust bearing, and connect with described oil storage portion via oil drain passageway,
The lubricating oil in described oil storage portion is configured in the half of described rotary shaft from described longitudinal oil supplying hole
The horizontal oil supplying hole in direction, footpath is supplied to the sliding surface of the described bearing of journals, and then is supplied to
The described lubricating oil of the sliding surface of the described bearing of journals is supplied to institute through described axle journal fuel feeding path
State the trapped fuel space of thrust bearing periphery, and then be supplied to the described lubrication in described trapped fuel space
Oil utilizes the described thrust fuel feeding path of the radial direction extension in described rotary shaft to be supplied to institute
State the sliding surface of thrust bearing and described rotary shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013025189A JP6134903B2 (en) | 2013-02-13 | 2013-02-13 | Positive displacement compressor |
| JP2013-025189 | 2013-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103982437A CN103982437A (en) | 2014-08-13 |
| CN103982437B true CN103982437B (en) | 2016-08-31 |
Family
ID=51274547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388424.5A Active CN103982437B (en) | 2013-02-13 | 2013-08-30 | Displacement type compressor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6134903B2 (en) |
| CN (1) | CN103982437B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763631A (en) * | 2015-04-02 | 2015-07-08 | 合肥通用机械研究院 | Vortex refrigeration compressor with sliding and rolling friction pair bent axle supporting structure |
| US10047799B2 (en) | 2015-04-10 | 2018-08-14 | Emerson Climate Technologies, Inc. | Scroll compressor lower bearing |
| CN105485017A (en) * | 2016-01-26 | 2016-04-13 | 广东美的暖通设备有限公司 | Mounting structure of thrust bearing and vortex-compressor |
| JP6748874B2 (en) * | 2017-01-27 | 2020-09-02 | パナソニックＩｐマネジメント株式会社 | Hermetic compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830341A (en) * | 1972-11-24 | 1974-08-20 | Carrier Corp | Lubrication system for a motor compressor unit |
| US4131396A (en) * | 1977-04-07 | 1978-12-26 | Sundstrand Corporation | Hermetic compressor lubrication system with two-stage oil pump |
| JPS62113879A (en) * | 1985-11-11 | 1987-05-25 | Daikin Ind Ltd | Lubricating structure for scroll type fluid machine |
| US5168960A (en) * | 1991-03-19 | 1992-12-08 | Bristol Compressors | Compressor crankshaft bearing cap and assembly |
| JPH11182473A (en) * | 1997-12-17 | 1999-07-06 | Sanyo Electric Co Ltd | Scroll compressor |
| JP2007170540A (en) * | 2005-12-21 | 2007-07-05 | Toyota Industries Corp | Gear meshing portion lubricating structure |
| CN101205922A (en) * | 2006-12-20 | 2008-06-25 | 乐金电子(天津)电器有限公司 | Thrust plate and cyclone compressor with the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767293A (en) * | 1986-08-22 | 1988-08-30 | Copeland Corporation | Scroll-type machine with axially compliant mounting |
| JPH04100088U (en) * | 1991-02-01 | 1992-08-28 |
-
2013
- 2013-02-13 JP JP2013025189A patent/JP6134903B2/en active Active
- 2013-08-30 CN CN201310388424.5A patent/CN103982437B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830341A (en) * | 1972-11-24 | 1974-08-20 | Carrier Corp | Lubrication system for a motor compressor unit |
| US4131396A (en) * | 1977-04-07 | 1978-12-26 | Sundstrand Corporation | Hermetic compressor lubrication system with two-stage oil pump |
| JPS62113879A (en) * | 1985-11-11 | 1987-05-25 | Daikin Ind Ltd | Lubricating structure for scroll type fluid machine |
| US5168960A (en) * | 1991-03-19 | 1992-12-08 | Bristol Compressors | Compressor crankshaft bearing cap and assembly |
| JPH11182473A (en) * | 1997-12-17 | 1999-07-06 | Sanyo Electric Co Ltd | Scroll compressor |
| JP2007170540A (en) * | 2005-12-21 | 2007-07-05 | Toyota Industries Corp | Gear meshing portion lubricating structure |
| CN101205922A (en) * | 2006-12-20 | 2008-06-25 | 乐金电子(天津)电器有限公司 | Thrust plate and cyclone compressor with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103982437A (en) | 2014-08-13 |
| JP6134903B2 (en) | 2017-05-31 |
| JP2014152747A (en) | 2014-08-25 |
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