CN207500118U - Rotary blade type compressor and its pump assembly - Google Patents
Rotary blade type compressor and its pump assembly Download PDFInfo
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- CN207500118U CN207500118U CN201721423203.7U CN201721423203U CN207500118U CN 207500118 U CN207500118 U CN 207500118U CN 201721423203 U CN201721423203 U CN 201721423203U CN 207500118 U CN207500118 U CN 207500118U
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- pressure oil
- pump assembly
- oilhole
- main shaft
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Abstract
The utility model provides a kind of rotary blade type compressor and its pump assembly.The pump assembly of the rotary blade type compressor includes main shaft (1), cylinder (2) and roller (3), the working connection (4) for axially penetrating through main shaft (1) is provided on main shaft (1), roller (3) is rotatably arranged in cylinder (2), the inner cavity of cylinder (2) is divided into inspiratory limb and exhaust section, roller (3) is circumferentially arranged multiple sliding vane grooves (6), it is slided in sliding vane groove (6) and is provided with slide plate (5), slide plate (5) forms back pressure oil pocket (7) with sliding vane groove (6) bottom, throttling oil circuit is connected at the back pressure oil pocket (7) of inspiratory limb.The pump assembly of rotary blade type compressor according to the present utility model, it is possible to reduce rub between inspiratory limb slide plate head and cylinder inner wall, reduce the friction power loss during compressor operating.
Description
Technical field
The utility model belongs to compressor apparatus technical field, and in particular to a kind of rotary blade type compressor and its pump housing group
Part.
Background technology
In the process of running, slide plate tail portion needs larger pressure to rotary blade type compressor, to ensure that slide plate does not depart from cylinder.
Existing sliding blade of rotary vane type compressor tail portion is full of high pressure oil, to ensure that slide plate does not depart from cylinder in exhaust phase.When slide plate slides
During to inspiratory limb, since slide plate head inspiratory limb is low pressure, slide plate tail portion is high pressure, is caused in inspiratory limb slide plate head and cylinder
Wall friction is larger, and friction power loss is larger during compressor operating.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of rotary blade type compressor and its pump assembly,
It can reduce and rub between inspiratory limb slide plate head and cylinder inner wall, reduce the friction power loss during compressor operating.
To solve the above-mentioned problems, the utility model provides a kind of pump assembly of rotary blade type compressor, including main shaft, gas
Cylinder and roller are provided with the working connection for axially penetrating through main shaft on main shaft, and roller is rotatably arranged in cylinder, the inner cavity of cylinder
It is divided into inspiratory limb and exhaust section, roller is circumferentially arranged there are multiple sliding vane grooves, is slided in sliding vane groove and is provided with slide plate, slide plate and cunning
Piece trench bottom forms back pressure oil pocket, and throttling oil circuit is connected at the back pressure oil pocket of inspiratory limb.
Preferably, main shaft is additionally provided with the first side oilhole of the peripheral side that the oil of working connection is delivered to main shaft, the first side
Oilhole and pass through the oil communication that throttles between the back pressure oil pocket of inspiratory limb.
Preferably, pump assembly further includes the upper flange being set in outside main shaft, is formed between oil circuit between upper flange and main shaft
Gap, oil circuit gap form throttling oil circuit.
Preferably, pump assembly further includes the upper flange being set in outside main shaft, and broach knot is formed on the internal face of upper flange
Structure, comb structure form throttling oil circuit.
Preferably, the appearance oil groove connected with the first side oilhole is provided on the inner wall of upper flange, the first side oilhole passes through appearance
Oil groove and throttling oil communication.
Preferably, the back pressure oil pocket of inspiratory limb is provided with the first back pressure oil groove, back pressure oil on the end face of upper flange
It is connected when chamber turns to inspiratory limb with the first back pressure oil groove.
Preferably, the first back pressure oil groove includes the first segmental arc and the second arc that are set gradually along the rotation direction of roller
Section, the first segmental arc and the connection of the second segmental arc, the radial width of the first segmental arc are less than the radial width of the second segmental arc.
Preferably, pump assembly further includes the upper flange being set in outside main shaft, and main shaft is additionally provided with the oil of working connection is defeated
It send to the first side oilhole of the peripheral side of main shaft, the first side oilhole is connected with the back pressure oil pocket of exhaust section, is provided on upper flange
Throttle oil circuit, and the back pressure oil pocket of exhaust section is connected by the oil circuit that throttles with the back pressure oil pocket of inspiratory limb.
Preferably, the back pressure oil pocket company of the first oilhole and the second oilhole, the second oilhole and exhaust section is provided on upper flange
Logical, the first oilhole is connected with the back pressure oil pocket of inspiratory limb, and throttle pipe is connected between the first oilhole and the second oilhole, and throttling is tubular
Into throttling oil circuit.
Preferably, axially through upper flange, throttle pipe is connected to the first oilhole and for the first oilhole and the second oilhole
The one end of two oilholes far from cylinder.
Preferably, throttle pipe is capillary；Or, throttle valve is provided on throttle pipe.
Preferably, the end face upper edge of upper flange towards roller has been provided at circumferentially spaced the first back pressure oil groove and the second back pressure oil
Slot, the back pressure oil pocket that the first back pressure oil groove corresponds to inspiratory limb are set, and the second back pressure oil groove corresponds to the back pressure oil pocket of exhaust section
Setting, the first oilhole are connected to the first back pressure oil groove, and the second oilhole is connected to the second back pressure oil groove.
Preferably, the second back pressure oil groove includes the trapped fuel section set gradually along the rotation direction of roller and suppresses oily section, deposits
The flow section sectional area of oily section is more than the flow section sectional area for suppressing oily section, and the second oilhole, which is connected to, suppresses oily section.
Preferably, pump assembly further includes lower flange, and main shaft is additionally provided with the second side oilhole connected with working connection, and second
Side oilhole is connected to the lateral wall of main shaft, the second side oilhole and passes through the oil circuit that throttles between the back pressure oil pocket of inspiratory limb and connects
It is logical.
Another aspect according to the present utility model provides a kind of rotary blade type compressor, including pump assembly, the pump housing group
Part is above-mentioned pump assembly.
The pump assembly of rotary blade type compressor provided by the utility model including main shaft, cylinder and roller, is set on main shaft
There is the working connection for axially penetrating through main shaft, roller is rotatably arranged in cylinder, and the inner cavity of cylinder is divided into inspiratory limb and exhaust section,
Roller is circumferentially arranged multiple sliding vane grooves, is slided in sliding vane groove and is provided with slide plate, slide plate forms back pressure oil with slide plate trench bottom
Chamber is connected with throttling oil circuit at the back pressure oil pocket of inspiratory limb.The pump assembly is connected at the back pressure oil pocket of inspiratory limb
Throttle oil circuit, therefore, when oil stream enters to turn in the back pressure oil pocket of inspiratory limb, can first flow through throttling oil circuit and carry out throttling drop
Pressure, so as to the oil liquid pressure being lowered into the back pressure oil pocket of inspiratory limb, reduces the fluid pair in the back pressure oil pocket of inspiratory limb
The slide plate tail portion pressure applied of inspiratory limb on the basis of ensureing that slide plate does not depart from cylinder, reduces inspiratory limb slide plate head
With the friction power loss in cylinder inner wall face, so as to promote the performance of compressor.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the pump assembly of the rotary blade type compressor of the utility model embodiment；
Fig. 2 is that the cylinder of the pump assembly of the rotary blade type compressor of the utility model embodiment and roller fit structure are illustrated
Figure；
Fig. 3 is the schematic cross-sectional view of the upper flange of the pump assembly of the utility model first embodiment；
Fig. 4 is the present invention looks up structural representation of the upper flange of the pump assembly of the utility model first embodiment；
Fig. 5 is the dimensional structure diagram of the upper flange of the pump assembly of the utility model first embodiment；
Fig. 6 is the schematic cross-sectional view of the upper flange of the pump assembly of the utility model second embodiment；
Fig. 7 is the present invention looks up structural representation of the upper flange of the pump assembly of the utility model second embodiment；
Fig. 8 is the dimensional structure diagram of the upper flange of the pump assembly of the utility model second embodiment；
Fig. 9 is the schematic cross-sectional view of the upper flange of the pump assembly of the utility model 3rd embodiment；
Figure 10 is the present invention looks up structural representation of the upper flange of the pump assembly of the utility model 3rd embodiment；
Figure 11 is the dimensional structure diagram of the upper flange of the pump assembly of the utility model 3rd embodiment；
The structure diagram of the lower flange of the pump assembly of Figure 12 the utility model embodiments.
Reference numeral is expressed as：
1st, main shaft；2nd, cylinder；3rd, roller；4th, working connection；5th, slide plate；6th, sliding vane groove；7th, back pressure oil pocket；8th, the first side oil
Hole；9th, upper flange；10th, oil circuit gap；11st, comb structure；12nd, hold oil groove；13rd, the first back pressure oil groove；14th, the first segmental arc；
15th, the second segmental arc；16th, the first oilhole；17th, the second oilhole；18th, throttle pipe；19th, the second back pressure oil groove；20th, trapped fuel section；21、
Suppress oily section；22nd, lower flange；23rd, the second side oilhole；24th, third back pressure oil groove；25th, the 4th back pressure oil groove；26th, straight oil groove；27、
Oil pump.
Specific embodiment
With reference to shown in referring to Fig. 1 to 12, embodiment according to the present utility model, the pump assembly of rotary blade type compressor includes master
Axis 1, cylinder 2 and roller 3 are provided with the working connection 4 for axially penetrating through main shaft 1 on main shaft 1, and roller 3 is rotatably arranged in cylinder 2
Interior, the inner cavity of cylinder 2 is divided into inspiratory limb and exhaust section, and roller 3 is circumferentially arranged multiple sliding vane grooves 6, slides and sets in sliding vane groove 6
Slide plate 5 is equipped with, slide plate 5 forms back pressure oil pocket 7 with 6 bottom of sliding vane groove, and throttling oil is connected at the back pressure oil pocket 7 of inspiratory limb
Road.
The pump assembly is connected with throttling oil circuit at the back pressure oil pocket 7 of inspiratory limb, therefore, when oil stream enters to turn to air-breathing
When in the back pressure oil pocket 7 of section, it can first flow through throttling oil circuit and carry out reducing pressure by regulating flow, so as to be lowered into the back pressure oil pocket of inspiratory limb
Oil liquid pressure in 7 reduces slide plate 5 tail portion pressure applied of the fluid in the back pressure oil pocket 7 of inspiratory limb to inspiratory limb, root
Different according to the work fragment position residing for slide plate 5 carry out 5 tail portion of slide plate segmentation pressure control, and 5 tail portion of inspiratory limb slide plate is carried
For relatively low pressure, reduce slide plate 5 in the pressure difference suffered by inspiratory limb, apply power on the cylinder 2 so as to reduce 5 head of slide plate,
On the basis of ensureing that slide plate 5 does not depart from cylinder 2, the friction power loss of 5 head of inspiratory limb slide plate and 2 internal face of cylinder is reduced, from
And promote the performance of compressor.
During compressor operation, with the rotation of main shaft 1, slide plate 5 is stretched under the action of centrifugal force and back pressure from sliding vane groove 6
Go out, and contacted with 2 internal face of cylinder.With the even running of compressor, slide plate 5 starts to move reciprocatingly in sliding vane groove 6.3
Entire moon teeth cavity is divided into 3 independent chambers by a slide plate 5, this 3 chambers periodically expand, reduce, so as to fulfill compression
The air-breathing of machine, exhaust.
In compressor motion process, slide plate 5 forms the space of a closing with sliding vane groove 6, and we term it back pressure oil
Chamber 7, the back pressure oil pocket 7 also there are three, and the amplification and diminution of property service cycle with compressor.As roller 3 rotates
The variation of position, turned position of the back pressure oil pocket 7 in cylinder 2 also change, when back pressure oil pocket 7 is in the suction in cylinder 2
During gas section, which connects with throttling oil circuit realization, carries out reducing pressure by regulating flow, reduces the oil pressure in back pressure oil pocket 7, work as the back of the body
When pumping cavity 7 is in the exhaust section in cylinder 2, which disconnects with throttling oil circuit, and the oil pressure in back pressure oil pocket 7 is higher,
With the pressure match in discharge chamber, slide plate 5 is avoided to be detached under the pressure of the discharge chamber of cylinder 2 and is connect with the internal face of cylinder 2
It touches, ensures the reliable and stable operation of compressor.
Oil pump 27 is housed in the lower part of the main shaft 1 of pump assembly, which is immersed in compression motor spindle oil sump, main shaft 1
Rotation drives oil pump rotation, and oil pump is a kind of positive displacement pump, and under the action of oil pump 27, oil is entered from oil sump on main shaft 1
In working connection 4.
With reference to shown in referring to Fig. 3 to Fig. 5, first embodiment according to the present utility model, main shaft 1 is additionally provided with working connection
4 oil is delivered to the first side oilhole 8 of the peripheral side of main shaft 1, the first side oilhole 8 and between the back pressure oil pocket 7 of inspiratory limb
Pass through the oil communication that throttles.Fluid by working connection 4 when reaching the first side oilhole 8, through the oil circuit that throttles at the first side oilhole 8
Into in the back pressure oil pocket 7 of inspiratory limb, since fluid is by throttling oil circuit reducing pressure by regulating flow, the back of the body of inspiratory limb is entered
Oil liquid pressure in pumping cavity 7 is smaller, also smaller to 5 pressure applied of slide plate, therefore can reduce head and the gas of slide plate 5
Friction between the inner wall of cylinder 2 reduces the frictional dissipation between slide plate 5 and cylinder 2.
In the present embodiment, pump assembly further includes the upper flange 9 being set in outside main shaft 1, between upper flange 9 and main shaft 1
Oil circuit gap 10 is formed, oil circuit gap 10 forms throttling oil circuit.Oil circuit gap 10, the oil circuit are formed between upper flange 9 and main shaft 1
Gap 10 is extended to from the first side oilhole 8 at the back pressure oil pocket 7 of inspiratory limb, so as to which the fluid after oil circuit gap 10 throttles is defeated
It is sent in the back pressure oil pocket 7, carries out fluid supplement.The oil circuit gap 10 can be the uniform strip-shaped groove of thickness, can also
For arc groove or other can play the role of the interstitial structure of reducing pressure by regulating flow.
The oil circuit gap 10 is arranged on upper flange 9, and the side from upper flange 9 towards main shaft 1 extends to 9 direction of upper flange
On the end face of cylinder 2, so as to form continuous oil circuit gap, it is ensured that fluid is smoothly entered in back pressure oil pocket 7.When
So, which can be different towards formation on the end face of cylinder 2 from upper flange 9 towards the side of main shaft 1 in upper flange 9
The groove of depth, it is only necessary to can ensure to forming effective decompression into the fluid in the back pressure oil pocket 7 of inspiratory limb.According to
The degree being depressured can adjust accordingly depth of groove, so that the frictional dissipation of compressor is smaller, together
When compressor operation stability it is also relatively reliable.
Preferably, the appearance oil groove 12 connected with the first side oilhole 8 is provided on the inner wall of upper flange 9, the first side oilhole 8 is logical
Cross appearance oil groove 12 and throttling oil communication.The appearance oil groove 12 can store the fluid in the first side oilhole 8, so as to make oil
Liquid is easily flowed to through the oil circuit that throttles in back pressure oil pocket 7, while when no back pressure oil pocket 7 is with throttling oil communication, can be with
Fluid is made steadily to be stored in hold in oil groove 12, the fluid of working connection 4 will not be supplied and affected greatly.
Preferably, the back pressure oil pocket 7 on the end face of upper flange 9 corresponding to inspiratory limb is provided with the first back pressure oil groove 13, carries on the back
It is connected when pumping cavity 7 turns to inspiratory limb with the first back pressure oil groove 13.The first back pressure oil groove 13 along roller 3 rotation direction
Extension, and with throttle oil communication, therefore can the back pressure oil pocket 7 positioned at inspiratory limb entire inspiratory limb always with throttling oil
Road connects, and ensures to supply fluid of the back pressure oil pocket 7 during the increase of entire inspiratory limb volume, avoid in back pressure oil pocket 7
Fluid is insufficient, improves stability and reliability during compressor operating.
In the present embodiment, the first back pressure oil groove 13 includes the first segmental arc set gradually along the rotation direction of roller 3
14 and second segmental arc 15, the first segmental arc 14 connected with the second segmental arc 15, the radial width of the first segmental arc 14 is less than the
The radial width of two segmental arcs 15.When back pressure oil pocket 7 turns to inspiratory limb, volume gradually increases, since back pressure oil pocket 7 is from row
During gas section turns to inspiratory limb, the oil pressure in back pressure oil pocket 7 is still larger, therefore, will first be contacted with back pressure oil pocket 7
The first segmental arc 14 radial width setting it is smaller, it will be able to reduce back pressure oil pocket 7 with throttle oil circuit connection area, make
The oil circuit that must throttle can be mixed steadily supplied to the oil pressure in the first back pressure oil groove 13 with the oil pressure in back pressure oil pocket 7, Bu Huifa
Raw larger pressure oscillation.When back pressure oil pocket 7 is after inspiratory limb turns an angle, the oil liquid pressure in back pressure oil pocket 7 with
Oil liquid pressure in first back pressure oil groove 13 reaches balance, and since back pressure oil pocket 7 is during inspiratory limb rotates, volume increases
Greatly, therefore the second segmental arc 15 that back pressure oil pocket 7 can be made larger with radial width contacts, so as to increase to back pressure oil pocket 7
Fluid supply ensures full oil in back pressure oil pocket 7, ensures slide plate stable operation.
Upper flange 9 is towards being additionally provided with the second back pressure oil groove 19, the first back pressure oil groove 13 and second back of the body on the end face of roller 3
Pressure oil groove 19 is provided at circumferentially spaced along the end face of upper flange 9, and the back pressure oil pocket 7 that the second back pressure oil groove 19 corresponds to exhaust section is set
It puts, and the second back pressure oil groove 19 either holds oil groove 12 with the first side oilhole 8 and connects, so as to be turned in back pressure oil pocket 7
During exhaust section, the extra fluid in back pressure oil pocket 7 can be emitted by the second back pressure oil groove 19 first side oilhole 8 or
It is to hold in oil groove 12, ensures the smooth circulation of fluid.
Preferably, the second back pressure oil groove 19 includes the trapped fuel section 20 set gradually along the rotation direction of roller 3 and suppresses oil
Section 21, the flow section sectional area of trapped fuel section 20 are more than the flow section sectional area for suppressing oily section 21, are connected to wherein suppressing oily section 21
First side oilhole 8 holds oil groove 12.For the back pressure oil pocket 7 of slide plate 5 when turning to exhaust section, the volume of back pressure oil pocket 7 is gradual
Reduce, the fluid in back pressure oil pocket 7 is forced out, and is entered in the first side oilhole 8 or appearance oil groove 12 from oily section 21 is suppressed, due to suppressing
The radial width of oily section 21 is less than the radial width of trapped fuel section 20, therefore the fluid in back pressure oil pocket 7 can not be expelled to the in time
Side oilhole 8 either holds in oil groove 12, can increase the oil liquid pressure in back pressure oil pocket 7.Due to the head meeting of exhaust phase slide plate
By the pressure at expulsion of slightly above exhaust back pressure, therefore the pressure of slide plate tail portion needs just keep away more than or equal to pressure at expulsion at this time
Exempt from slide plate and be detached from cylinder, and the effect for suppressing oil can be played by suppressing oily section 21, therefore can improve the back pressure in back pressure oil pocket 7, together
When the oil in sliding vane groove 6 is discharged in the appearance oil groove 12 of upper flange 9 by suppressing the oilhole in oily section 21, in the process, due to
Larger oil pressure is maintained in back pressure oil pocket 7, therefore can ensure that the pressure of slide plate tail portion is more than or equal to pressure at expulsion, is effectively kept away
Exempt from slide plate 5 and be detached from cylinder 2.
On the one hand the above-mentioned pump assembly of the utility model can ensure while Discrete control sliding vane groove back pressure is ensured
On the other hand the fuel feeding of back pressure slot can also reduce influence of the compression exhaust section sliding vane groove back pressure to inspiratory limb sliding vane groove back pressure.
With reference to shown in referring to Fig. 6 to Fig. 8, second embodiment according to the present utility model, with the basic phase of first embodiment
Together, the difference lies in, in the present embodiment, pump assembly further includes the upper flange 9 being set in outside main shaft 1, upper flange 9 it is interior
Comb structure 11 is formed on wall surface, comb structure 11 forms throttling oil circuit.Due to pump assembly on the internal face of upper flange 9 shape
Into can be as the comb structure 11 of throttling oil circuit, therefore the oil circuit gap in first embodiment can be saved, pass through broach
The broach of structure 11 carries out reducing pressure by regulating flow to the fluid entered in the first back pressure oil groove 13, ensures to enter the back pressure oil of inspiratory limb
Oil pressure in chamber 7 is less than the oil pressure in the first side oilhole 8.
With reference to shown in referring to Fig. 9 to Figure 11,3rd embodiment according to the present utility model, pump assembly, which further includes, to be set in
Upper flange 9 outside main shaft 1, main shaft 1 are additionally provided with the first side oilhole 8 of the peripheral side that the oil of working connection 4 is delivered to main shaft 1,
First side oilhole 8 is connected with the back pressure oil pocket 7 of exhaust section, and throttling oil circuit, the back pressure oil pocket 7 of exhaust section are provided on upper flange 9
By throttling, oil circuit is connected with the back pressure oil pocket 7 of inspiratory limb.In the present embodiment, it eliminates between the oil circuit in first embodiment
Gap directly utilizes the back pressure that inspiratory limb is drained into after the fluid progress reducing pressure by regulating flow discharged in the back pressure oil pocket 7 of exhaust section
In oil pocket 7, repairing is carried out to the back pressure oil pocket 7 of inspiratory limb, therefore, in the back pressure oil pocket 7 and air-breathing of exhaust section in the present embodiment
Throttling oil circuit is provided between the back pressure oil pocket 7 of section, so as to be depressured to the fluid that inspiratory limb is discharged into through exhaust section so that into
Enter to the oil pressure in the back pressure oil pocket 7 of inspiratory limb to be less than the oil pressure in the back pressure oil pocket 7 of exhaust section, reduce the back pressure oil of inspiratory limb
Oil pressure in chamber 7 so that fluid is more fully utilized to the pressure of slide plate 5.
Preferably, the first oilhole 16 and the second oilhole 17, the back pressure of the second oilhole 17 and exhaust section are provided on upper flange 9
Oil pocket 7 connects, and the first oilhole 16 is connected with the back pressure oil pocket 7 of inspiratory limb, is connected between the first oilhole 16 and the second oilhole 17
Throttle pipe 18, throttle pipe 18 form throttling oil circuit.After fluid is extruded out of exhaust section back pressure oil pocket 7, in the effect of pressure difference
Lower entered through the second oilhole 17 carries out reducing pressure by regulating flow in throttle pipe 18, enter the back of the body of inspiratory limb by the first oilhole 16 later
In pumping cavity 7, repairing is carried out to the back pressure oil pocket 7 of inspiratory limb.
In the present embodiment, axially through upper flange 9, throttle pipe 18 is connected to for the first oilhole 16 and the second oilhole 17
First oilhole 16 and second one end of oilhole 17 far from cylinder 2.The throttle pipe 18 is located in the housing of compressor, due to upper flange
9 upper end is larger cavity, therefore the structure of throttle pipe 18 can be transformed as needed, and space bigger is transformed,
It can realize that more kinds of oil pressure adjust requirement.
Preferably, throttle pipe 18 is capillary；Or, throttle valve is provided on throttle pipe 18, so as to ensure that throttle pipe 18 is right
The antihypertensive effect of fluid.
Preferably, the end face upper edge of upper flange 9 towards roller 3 has been provided at circumferentially spaced the first back pressure oil groove 13 and second back of the body
Pressure oil groove 19, the back pressure oil pocket 7 that the first back pressure oil groove 13 corresponds to inspiratory limb are set, and the second back pressure oil groove 19 corresponds to exhaust section
Back pressure oil pocket 7 set, the first oilhole 16 is connected to the first back pressure oil groove 13, and the second oilhole 17 is connected to the second back pressure oil groove
19。
Preferably, the second back pressure oil groove 19 includes the trapped fuel section 20 set gradually along the rotation direction of roller 3 and suppresses oil
Section 21, the radial width of trapped fuel section 20 are more than the radial width for suppressing oily section 21, and the second oilhole 17, which is connected to, suppresses oily section 21.Work as back pressure
Oil pocket 7 reach exhaust section when, the volume of back pressure oil pocket 7 is gradually reduced, in oil liquid pressure raising, fluid is in the effect of pressure difference
Under enter in the second back pressure oil groove 19 and store, when the fluid discharge in back pressure oil pocket 7 is more, oil liquid pressure further adds
Greatly, the oily section 21 of suppressing of rotation end of the part fluid through the second back pressure oil groove 19 is entered in the second oilhole 17, due to suppressing oily section
Radial width be much smaller than the radial width of trapped fuel section 20, therefore fluid can not be discharged from suppressing oily section 21 in time so that second back of the body
Oil pressure in pressure oil groove 19 may remain in elevated pressures, and slide plate 5 is avoided to be disengaged with cylinder 2, simultaneously as the second back pressure
Oil pressure in oil groove 19 is higher, therefore part fluid enters the second oilhole 17, Ran Houyi from suppressing oily section 21 under pressure
It is secondary to be entered in the first back pressure oil groove 13 through 18 and first oilhole 16 of throttle pipe, when the back pressure oil pocket 7 turns to inspiratory limb, the back of the body
The volume of pumping cavity 7 is gradually reduced, and the smaller fluid of pressure in the first back pressure oil groove 13 is entered in the back pressure oil pocket 7, right
Fluid in back pressure oil pocket 7 is supplemented, and is ensured full oil in the back pressure oil pocket 7 of inspiratory limb, is improved stabilization when slide plate 5 works
Property.
With reference to shown in Figure 12, it is preferable that pump assembly further includes lower flange 22, and main shaft 1 is additionally provided with and working connection 4
The second side oilhole 23 of connection, the second side oilhole 23 are connected to the lateral wall of main shaft 1, and the second side oilhole 23 is with being located at inspiratory limb
Pass through the oil communication that throttles between back pressure oil pocket 7.Pump assembly can also carry out the back pressure oil pocket 7 of inspiratory limb by lower flange 22
The decompression of interior fluid supplements, and the reducing pressure by regulating flow structure on lower flange 22 may be used and first embodiment and second embodiment phase
With structure realize.
Third back pressure oil groove 24 and the 4th back pressure oil groove 25 can be set on the upper surface of lower flange 22, and wherein third is carried on the back
The back pressure oil pocket 7 that pressure oil groove 24 corresponds to inspiratory limb is set, and the back pressure oil pocket 7 that the 4th back pressure oil groove 25 corresponds to exhaust section is set.
The central hole of lower flange is additionally provided with straight oil groove 26, and fluid is entered at the second side oilhole 23 in straight oil groove 26, to laxative remedy
Blue bearing is lubricated.
Embodiment according to the present utility model, rotary blade type compressor include pump assembly, which is above-mentioned pump
Body component.
For those skilled in the art it is easily understood that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.The above is only the preferred embodiment of the utility model, it is noted that for the art
For those of ordinary skill, under the premise of the utility model technical principle is not departed from, several improvement and modification can also be made,
These improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (15)
1. a kind of pump assembly of rotary blade type compressor, which is characterized in that described including main shaft (1), cylinder (2) and roller (3)
The working connection (4) for axially penetrating through the main shaft (1) is provided on main shaft (1), the roller (3) is rotatably arranged in the gas
In cylinder (2), the inner cavity of the cylinder (2) is divided into inspiratory limb and exhaust section, and the roller (3) is circumferentially arranged multiple sliding vane grooves
(6), it is slided in the sliding vane groove (6) and is provided with slide plate (5), the slide plate (5) forms back pressure oil with the sliding vane groove (6) bottom
Chamber (7) is connected with throttling oil circuit at the back pressure oil pocket (7) of inspiratory limb.
2. pump assembly according to claim 1, which is characterized in that the main shaft (1) is additionally provided with the working connection
(4) oil is delivered to the first side oilhole (8) of the peripheral side of the main shaft (1), and first side oilhole (8) is with being located at inspiratory limb
The back pressure oil pocket (7) between pass through the throttling oil communication.
3. pump assembly according to claim 2, which is characterized in that the pump assembly, which further includes, is set in the main shaft
(1) outside upper flange (9) forms oil circuit gap (10), the oil circuit gap between the upper flange (9) and the main shaft (1)
(10) the throttling oil circuit is formed.
4. pump assembly according to claim 2, which is characterized in that the pump assembly, which further includes, is set in the main shaft
(1) outside upper flange (9), forms comb structure (11) on the internal face of the upper flange (9), and the comb structure (11) is formed
The throttling oil circuit.
5. pump assembly according to claim 3 or 4, which is characterized in that be provided on the inner wall of the upper flange (9) with
The appearance oil groove (12) of first side oilhole (8) connection, first side oilhole (8) pass through the appearance oil groove (12) and the section
Flow oil communication.
6. pump assembly according to claim 3 or 4, which is characterized in that correspond on the end face of the upper flange (9) and inhale
The back pressure oil pocket (7) of gas section is provided with the first back pressure oil groove (13), when the back pressure oil pocket (7) turns to inspiratory limb and institute
State the connection of the first back pressure oil groove (13).
7. pump assembly according to claim 6, which is characterized in that the first back pressure oil groove (13) is including along the rolling
The first segmental arc (14) and the second segmental arc (15) that the rotation direction of sub (3) is set gradually, first segmental arc (14) and
Second segmental arc (15) connection, the radial width of first segmental arc (14) are less than the diameter of second segmental arc (15)
To width.
8. pump assembly according to claim 1, which is characterized in that the pump assembly, which further includes, is set in the main shaft
(1) outside upper flange (9), the main shaft (1) is additionally provided with is delivered to the outer of the main shaft (1) by the oil of the working connection (4)
First side oilhole (8) of side, first side oilhole (8) are connected with the back pressure oil pocket (7) of exhaust section, the upper flange
(9) the throttling oil circuit is provided on, the back pressure oil pocket (7) of exhaust section passes through described in the throttling oil circuit and inspiratory limb
Back pressure oil pocket (7) connects.
9. pump assembly according to claim 8, which is characterized in that be provided with the first oilhole on the upper flange (9)
(16) it is connected with the second oilhole (17), second oilhole (17) with the back pressure oil pocket (7) of exhaust section, first oilhole
(16) it connects with the back pressure oil pocket (7) of inspiratory limb, is connected between first oilhole (16) and second oilhole (17)
There is throttle pipe (18), the throttle pipe (18) forms the throttling oil circuit.
10. pump assembly according to claim 9, which is characterized in that first oilhole (16) and second oilhole
(17) axially through the upper flange (9), the throttle pipe (18) is connected to first oilhole (16) and described second
The one end of oilhole (17) far from the cylinder (2).
11. pump assembly according to claim 9, which is characterized in that the throttle pipe (18) is capillary；It is or, described
Throttle pipe is provided with throttle valve on (18).
12. the pump assembly according to any one of claim 9 to 11, which is characterized in that the upper flange (9) is towards institute
The end face upper edge for stating roller (3) has been provided at circumferentially spaced the first back pressure oil groove (13) and the second back pressure oil groove (19), and described first
Back pressure oil groove (13) is set corresponding to the back pressure oil pocket (7) of inspiratory limb, and the second back pressure oil groove (19) is corresponding to exhaust
The back pressure oil pocket (7) setting of section, first oilhole (16) are connected to the first back pressure oil groove (13), second oil
Hole (17) is connected to the second back pressure oil groove (19).
13. pump assembly according to claim 12, which is characterized in that the second back pressure oil groove (19) is including along rolling
The trapped fuel section (20) and suppress oily section (21) that the rotation direction of sub (3) is set gradually, the flow section section of the trapped fuel section (20)
Product is more than the flow section sectional area for suppressing oily section (21), and second oilhole (17), which is connected to, described suppresses oily section (21).
14. according to the pump assembly described in Claims 1-4,7 to 11, any one of 13, which is characterized in that the pump housing group
Part further includes lower flange (22), and the main shaft (1) is additionally provided with the second side oilhole (23) connected with the working connection (4), institute
State the lateral wall that the second side oilhole (23) is connected to the main shaft (1), the second side oilhole (23) and the institute positioned at inspiratory limb
It states between back pressure oil pocket (7) through the throttling oil communication.
15. a kind of rotary blade type compressor, including pump assembly, which is characterized in that the pump assembly is in claim 1 to 14
Any one of them pump assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423203.7U CN207500118U (en) | 2017-10-30 | 2017-10-30 | Rotary blade type compressor and its pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423203.7U CN207500118U (en) | 2017-10-30 | 2017-10-30 | Rotary blade type compressor and its pump assembly |
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| Publication Number | Publication Date |
|---|---|
| CN207500118U true CN207500118U (en) | 2018-06-15 |
Family
ID=62502657
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721423203.7U Active CN207500118U (en) | 2017-10-30 | 2017-10-30 | Rotary blade type compressor and its pump assembly |
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| CN (1) | CN207500118U (en) |
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| CN107882728A (en) * | 2017-10-30 | 2018-04-06 | 珠海格力电器股份有限公司 | Rotary blade type compressor and its pump assembly |
| CN108930651A (en) * | 2018-08-31 | 2018-12-04 | 珠海格力电器股份有限公司 | Pump assembly and compressor |
| CN111794966A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN112610490A (en) * | 2020-12-29 | 2021-04-06 | 珠海格力电器股份有限公司 | Pump body assembly and fluid machine |
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2017
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| CN107882728A (en) * | 2017-10-30 | 2018-04-06 | 珠海格力电器股份有限公司 | Rotary blade type compressor and its pump assembly |
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| CN108930651A (en) * | 2018-08-31 | 2018-12-04 | 珠海格力电器股份有限公司 | Pump assembly and compressor |
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| JP2022516817A (en) * | 2018-08-31 | 2022-03-03 | グリー エレクトリック アプライアンス、インコーポレイテッド オブ チューハイ | Pump body assembly and compressor |
| US11454240B2 (en) | 2018-08-31 | 2022-09-27 | Gree Electric Appliances, Inc. Of Zhuhai | Pump body assembly and compressor |
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| CN108930651B (en) * | 2018-08-31 | 2024-02-27 | 珠海格力电器股份有限公司 | Pump body assembly and compressor |
| CN111794966A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN112610490A (en) * | 2020-12-29 | 2021-04-06 | 珠海格力电器股份有限公司 | Pump body assembly and fluid machine |
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