CN108397383A - Pump assembly, compressor and heat transmission equipment - Google Patents
Pump assembly, compressor and heat transmission equipment Download PDFInfo
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- CN108397383A CN108397383A CN201810375208.XA CN201810375208A CN108397383A CN 108397383 A CN108397383 A CN 108397383A CN 201810375208 A CN201810375208 A CN 201810375208A CN 108397383 A CN108397383 A CN 108397383A
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 90
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000009471 action Effects 0.000 claims abstract description 10
- 210000002421 cell wall Anatomy 0.000 claims description 16
- 230000013011 mating Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3446—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
- F04C18/3447—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface the vanes having the form of rollers, slippers or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention provides a kind of pump assembly, compressor and heat transmission equipments.Wherein, pump assembly includes：Shaft, the rotor portions of shaft have the sliding vane groove for accommodating slide plate；Pressure regulating mechanism, one end of pressure regulating mechanism are connected to the back pressure cavity of sliding vane groove, and the other end of pressure regulating mechanism is connected to the inner cavity of cylinder；Regulating part is arranged in pressure regulating mechanism, and when inner cavity and back pressure cavity are there are when pressure difference, regulating part slides under the action of pressure difference in pressure regulating mechanism, so that the head of slide plate is in contact with the inner surface of cylinder always.Present invention efficiently solves the slide plates of pump assembly in the prior art to be easier to be detached from cylinder, influences the problem of pump assembly working performance.
Description
Technical field
The present invention relates to pump assembly technical fields, are set in particular to a kind of pump assembly, compressor and heat exchange
It is standby.
Background technology
In the prior art, the slide plate of pump assembly is slided by the back pressure in sliding vane groove.However, in pump assembly
The exhaust later stage, due to there are overcompression, causing the pressure of discharge chamber to be higher than normal pressure at expulsion, and the back of the body of sliding vane groove at this time
It is still pressure at expulsion to press the pressure of intracavitary, is easy to happen the phenomenon that slide plate is detached from cylinder inner wall, leads to head and the gas of slide plate
Cylinder occurs to hit and generate vibration and noise, influences the working performance and working efficiency of pump assembly.
Invention content
The main purpose of the present invention is to provide a kind of pump assembly, compressor and heat transmission equipments, to solve the prior art
The slide plate of middle pump body component is easier to be detached from cylinder, influences the problem of pump assembly working performance.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of pump assembly, including：Shaft turns
The rotor portions of axis have the sliding vane groove for accommodating slide plate；Pressure regulating mechanism, one end of pressure regulating mechanism and sliding vane groove
Back pressure cavity is connected to, and the other end of pressure regulating mechanism is connected to the inner cavity of cylinder；Regulating part is arranged in pressure regulating mechanism,
When inner cavity and back pressure cavity are there are when pressure difference, regulating part slides under the action of pressure difference in pressure regulating mechanism, so that sliding
The head of piece is in contact with the inner surface of cylinder always.
Further, pressure regulating mechanism is the connectivity slot being arranged in rotor portions.
Further, connectivity slot includes the first slot section, storage tank section and the second slot section being sequentially connected to, the first slot section with it is interior
Chamber is connected to, and the second slot section is connected to back pressure cavity, and regulating part is movably arranged in storage tank section, and when the pressure of inner cavity is less than back pressure
When the pressure of chamber, regulating part slides into the connectivity part of the first slot section and storage tank section, to cut off the first slot section and storage tank section
Connected state.
Further, when the pressure of inner cavity is more than the pressure of back pressure cavity, regulating part slides in storage tank section, so that the
One slot section is connected to the second slot section.
Further, the second slot section is the recess portion being opened on the cell wall of sliding vane groove, and recess portion prolongs to the tail portion of sliding vane groove
It stretches to be connected to back pressure cavity.
Further, regulating part is column structure.
Further, cell wall of the storage tank section close to the second slot section side is step surface, and step surface is along pump assembly
Axial setting, when the pressure of inner cavity is more than the pressure of back pressure cavity, the gas of interior intracavitary by step surface flow through the second slot section with
Into in back pressure cavity.
Further, when the pressure of inner cavity is more than the pressure of back pressure cavity, regulating part moves to storage tank section and the second slot
The connectivity part of section, to cut off the connected state of storage tank section and the second slot section.
Further, regulating part is sliding block, and storage tank section is extended from the first slot section to the direction of the second slot section, so that sliding block
It can slidably reciprocate in storage tank section.
Further, sliding block has one group of sliding mating surface being oppositely arranged, and slides the cell wall of mating surface and storage tank section
Between have preset distance D, preset distance D be more than or equal to 0.01mm and be less than or equal to 0.02mm.
Further, the first slot section includes the first pilot trench section and the second pilot trench section being sequentially connected to, and the two is set in angle
It sets, the first pilot trench section is arranged relative to the second pilot trench section far from storage tank section.
Further, the width of the first pilot trench section is more than the width of the second pilot trench section.
Further, the second slot section includes the third pilot trench section and the 4th pilot trench section being sequentially connected to, and the two is set in angle
It sets, third pilot trench section is arranged relative to the 4th pilot trench section close to storage tank section.
Further, the 4th pilot trench section is the recess portion being opened on the cell wall of sliding vane groove, and recess portion is to the tail portion of sliding vane groove
Extend to be connected to back pressure cavity.
Further, cylinder is rolling bearing type cylinder.
Further, on the axis direction of shaft, the height of rotor portions is H, and the groove depth of connectivity slot is h, is met
According to another aspect of the present invention, a kind of compressor, including above-mentioned pump assembly are provided.
According to another aspect of the present invention, a kind of heat transmission equipment, including above-mentioned compressor are provided.
It applies the technical scheme of the present invention, pump assembly includes shaft, pressure regulating mechanism and regulating part.Wherein, shaft
Rotor portions there is sliding vane groove for accommodating slide plate.One end of pressure regulating mechanism is connected to the back pressure cavity of sliding vane groove, pressure
The other end of adjustment structure is connected to the inner cavity of cylinder.Regulating part is arranged in pressure regulating mechanism, when inner cavity and back pressure cavity are deposited
In pressure difference, regulating part slides under the action of pressure difference in pressure regulating mechanism so that the head of slide plate always with gas
The inner surface of cylinder is in contact.In this way, in pump assembly operational process, regulating part is adjusted in pressure and is tied under the action of pressure difference
Sliding in structure, to adjust the pressure difference between the inner cavity of cylinder and back pressure cavity, it is ensured that the head of slide plate is in contact with cylinder always,
And then prevent pump assembly from causing slide plate to be hit with cylinder on exhaust phase slide plate head and cylinder surfaces disengagement, it solves
The slide plate of pump assembly is easier to be detached from cylinder, influences the problem of pump assembly working performance in the prior art, reduces the pump housing
The power consumption of component promotes the operational reliability of pump assembly.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows the sectional view of the embodiment one of pump assembly according to the present invention；
Fig. 2 shows the decomposition texture schematic diagrams of the pump assembly in Fig. 1；
The cylinder and the vertical view after shaft cooperation that Fig. 3 shows the pump assembly in Fig. 1；
Fig. 4 shows the cylinder in Fig. 3 and enlarged diagram at the A after shaft cooperation；
Fig. 5 shows the cylinder in Fig. 3 and enlarged diagram at the B after shaft cooperation；
Fig. 6 shows the cylinder in Fig. 5 and enlarged diagram at the C after shaft cooperation；
Fig. 7 shows the sectional perspective structural schematic diagram of the rotor portions of the pump assembly in Fig. 2；
Fig. 8 shows the dimensional structure diagram of the regulating part in Fig. 3；
The cylinder and the vertical view after shaft cooperation that Fig. 9 shows the embodiment two of pump assembly according to the present invention；
Figure 10 shows the sectional perspective structural schematic diagram of the rotor portions of the pump assembly in Fig. 9；And
Figure 11 shows the dimensional structure diagram of the regulating part of the pump assembly in Fig. 9.
Wherein, above-mentioned attached drawing includes the following drawings label：
11, upper flange；12, lower flange；20, cylinder；21, inner cavity；30, shaft；31, rotor portions；311, sliding vane groove；
311a, back pressure cavity；312, the first slot section；312a, the first pilot trench section；312b, the second pilot trench section；313, storage tank section；314,
Two slot sections；314a, third pilot trench section；314b, the 4th pilot trench section；32, shaft central hole；33, shaft side opening；40, slide plate；50、
Regulating part；51, mating surface is slid；60, motor；70, oil pump.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used is typically directed to attached drawing as " upper and lower "
Shown in for direction, or on vertical, vertical or gravity direction；Similarly, it for ease of understanding and retouches
It states, " left and right " is typically for shown in the drawings left and right；" inside and outside " refers to the inside and outside of the profile relative to each component itself,
But the above-mentioned noun of locality is not intended to restrict the invention.
Slide plate in order to solve pump assembly in the prior art is easier to be detached from cylinder, influences pump assembly working performance
Problem, this application provides a kind of pump assembly, compressor and heat transmission equipments.
Embodiment one
As shown in Figure 1 to Figure 3, pump assembly includes shaft 30, pressure regulating mechanism and regulating part 50.Wherein, shaft 30
Rotor portions 31 there is sliding vane groove 311 for accommodating slide plate 40.The back pressure cavity of one end and sliding vane groove 311 of pressure regulating mechanism
311a is connected to, and the other end of pressure regulating mechanism is connected to the inner cavity 21 of cylinder 20.Regulating part 50 is arranged in pressure regulating mechanism
Interior, when inner cavity 21 and back pressure cavity 311a is there are when pressure difference, regulating part 50 is under the action of pressure difference in pressure regulating mechanism
Sliding, so that the head of slide plate 40 is in contact with the inner surface of cylinder 20 always.
Using the technical solution of the present embodiment, in pump assembly operational process, the regulating part 50 under the action of pressure difference
It is slided in pressure regulating mechanism, to adjust the pressure difference between the inner cavity 21 of cylinder 20 and back pressure cavity 311a, it is ensured that slide plate 40
Head be in contact always with cylinder 20, and then prevent pump assembly de- in 40 head of exhaust phase slide plate and 20 inner surface of cylinder
It convinces by patient analysis and slide plate 40 is caused to be hit with cylinder 20, the slide plate for solving pump assembly in the prior art is easier to and cylinder disengaging, shadow
The problem of ringing pump assembly working performance, reduces the power consumption of pump assembly, promotes the operational reliability of pump assembly.
In the present embodiment, pressure regulating mechanism is the connectivity slot being arranged in rotor portions 31.In this way, when inner cavity 21 and the back of the body
There are when pressure difference between pressure chamber 311a, regulating part 50 slides in connectivity slot, to adjust pressure difference between the two, ensures to slide
The head of piece 40 is in contact with the inner surface of cylinder 20 always, prevents the gas phenomenon that leaps up between compression chamber and discharge chamber, in turn
Promote the operational reliability of pump assembly.
In the present embodiment, connectivity slot is arranged in the side towards upper flange 11 of rotor portions 31, and cylinder 20 is located at upper method
Between orchid 11 and lower flange 12.
As shown in Figures 4 to 7, connectivity slot includes the first slot section 312, storage tank section 313 and the second slot section being sequentially connected to
314, the first slot section 312 is connected to inner cavity 21, and the second slot section 314 is connected to back pressure cavity 311a, and regulating part 50 is movably arranged on appearance
It sets in slot section 313, and when the pressure of inner cavity 21 is less than the pressure of back pressure cavity 311a, regulating part 50 slides into the first slot section 312
With the connectivity part of storage tank section 313, with cut off the first slot section 312 and storage tank section 313 connected state.The structure of above structure
Simply, it is easily worked, realizes.
Specifically, in the expiratory phase of pump assembly, the pressure of inner cavity 21 is less than the pressure in back pressure cavity 311a, i.e. back pressure
Chamber 311a is supplied to the directed force F 1 of regulating part 50 to be more than inner cavity 21 and is supplied to the directed force F 2 of regulating part 50 (directed force F 2 is pumping
Body component expiratory phase is smaller, and pump assembly exhaust phase is larger, and pressure at expulsion is more than when overcompression), then regulating part 50 is being pressed
It is moved towards the first slot section 312 under force effect, until the connectivity part of the first slot section 312 and storage tank section 313 is moved to, by first
Slot section 312 is connected to the disconnection of storage tank section 313, and then inner cavity 21 is connected to back pressure cavity 311a disconnections.And back pressure cavity at this time
Pressure in 311a is still above the pressure in inner cavity 21, then inner surface of the head of slide plate 40 under back pressure effect with cylinder 20
It abuts, and then ensures the normal operation of pump assembly.
In the present embodiment, when the pressure of inner cavity 21 is more than the pressure of back pressure cavity 311a, regulating part 50 is in storage tank section
Sliding in 313, so that the first slot section 312 is connected to the second slot section 314.In this way, in the exhaust phase of pump assembly, in inner cavity 21
Pressure be more than the pressure in back pressure cavity 311a, then regulating part 50 is moved towards the second slot section 314 under pressure, so that the
Two slot sections 314 are connected to the first slot section 312, until the pressure value in inner cavity 21 is equal with the pressure value of back pressure cavity 311a.In this way,
In 30 rotation process of shaft, above-mentioned setting can reduce the head of slide plate 40 by the active force from inner cavity 21, relatively
Increase the pressure value in back pressure cavity 311a, and then ensure that the head of slide plate 40 is in contact with the inner surface of cylinder 20, and then is promoted
The working performance and operational reliability of pump assembly.
As shown in figure 5 and figure 7, the second slot section 314 is the recess portion being opened on the cell wall of sliding vane groove 311, and recess portion is to cunning
The tail portion of film trap 311 extends to be connected to back pressure cavity 311a.In this way, the second slot section 314 is connected to back pressure cavity 311a, and then pass through
The connected state for controlling the second slot section 314 and the first slot section 312 can control back pressure cavity 311a and the first slot section 312 and inner cavity 21
Connected state.Above-mentioned setting makes the structure of the rotor portions 31 of shaft 30 simple, is easily worked, and reduces adding for pump assembly
Work cost.
As shown in figure 8, regulating part 50 is column structure.Specifically, the connectivity part of the first slot section 312 and storage tank section 313
For arcwall face.Above-mentioned setting ensures that regulating part 50 can block the connectivity part of the first slot section 312 and storage tank section 313, with reality
The now sealing of the connectivity part, the pressure value in pressure value and inner cavity 21 after sealing in back pressure cavity 311a cannot balance, air-breathing
Stage is to ensure that the pressure value that the pressure value in back pressure cavity 311a is more than in inner cavity 21, then the stress of slide plate 40 is directed toward air-breathing
Side ensures that the head of slide plate 40 and the inner surface of cylinder 20 fit closely, realizes the air-breathing of pump assembly.Meanwhile above-mentioned setting
So that sliding of the regulating part 50 in storage tank section 313 is more prone to.The structure of above structure is simple, is easily worked.
Optionally, regulating part 50 is cylinder of the column structure after finishing.
As shown in Figures 5 to 7, cell wall of the storage tank section 313 close to 314 side of the second slot section is step surface, and step surface
Axial direction along pump assembly is arranged, and when the pressure of inner cavity 21 is more than the pressure of back pressure cavity 311a, the gas in inner cavity 21 passes through
Step surface flows through the second slot section 314 to enter in back pressure cavity 311a.Specifically, step surface is longitudinal step surface, by being sequentially connected with
The first cell wall and the second cell wall formed, and the first cell wall close to rotor portions 31 upper surface be arranged.When the pressure of inner cavity 21 is big
When the pressure of back pressure cavity 311a, regulating part 50 is moved and is abutted with the second cell wall, the high pressure gas in inner cavity 21 towards step surface
Body is entered to by step surface in back pressure cavity 311a, so that back pressure cavity 311a is equal with the pressure value in inner cavity 21, increases back pressure
Pressure value in chamber 311a.
Specifically, in the exhaust phase of pump assembly there are overcompression phenomenon, the pressure value in inner cavity 21 is more than exhaust pressure
Power, back pressure cavity 311a are supplied to the directed force F 1 of regulating part 50 to be less than the directed force F 2 that inner cavity 21 is supplied to regulating part 50, adjust
Part 50 moves under the action of pressure difference to the directions back pressure cavity 311a, and regulating part 50 is moved to step surface stopping.At this time due to platform
The presence of terrace, high pressure gas enter to back pressure cavity 311a by the first slot section 312, storage tank section 313 and the second slot section 314
It is interior.Since back pressure cavity 311a and inner cavity 21 are in connected state, then the pressure of the two can reach balanced, finally so that directed force F 1
Equal to directed force F 2, then the active force that slide plate 40 is moved to 311 direction of sliding vane groove disappears, and ensures that the head of slide plate 40 will not be with gas
The inner surface of cylinder 20 is detached from, then not will produce shock, reduce energy consumption, vibration and the noise of pump assembly.
As shown in Figures 5 to 7, the first slot section 312 includes the first pilot trench section 312a being sequentially connected to and the second pilot trench section
312b, and the two is arranged in angle, the first pilot trench section 312a is arranged relative to the second pilot trench section 312b far from storage tank section 313.
Wherein, the width of the first pilot trench section 312a is more than the width of the second pilot trench section 312b.In this way, above-mentioned setting not only makes inner cavity 21
In gas more easily enter to the first slot section 312, and make the pressure for entering to gas in the second pilot trench section 312b
Value increases, and then reduces gas flowing of the pump assembly in expiratory phase between the first slot section 312 and back pressure cavity 311a, increases
Gas flowing of the pump assembly in exhaust phase between the first slot section 312 and back pressure cavity 311a, and then increase back pressure cavity 311a
Interior pressure value so that the head of pump assembly slide plate 40 in the process of running is in contact with the inner surface of cylinder 20 always, prevents
Only pump assembly occurs vibration and generates noise, improves the user experience, promotes the working performance of pump assembly.
In the present embodiment, cylinder 20 is rolling bearing type cylinder.In this way, in 30 rotation process of shaft, cylinder 20
Inner ring can also be rotated, and then reduce the friction force between the inner surface and slide plate 40 of cylinder 20, reduce pump housing group
The friction power loss of part promotes the working efficiency of pump assembly.
As shown in Figure 1 and Figure 7, on the axis direction of shaft 30, the height of rotor portions 31 is H, and the groove depth of connectivity slot is
H meetsIn this way, in pump assembly operational process, above-mentioned setting ensures that regulating part 50 is sliding in connectivity slot
The pressure value in back pressure cavity 311a can be adjusted during dynamic, to ensure the voltage regulation function of regulating part 50.
Present invention also provides a kind of compressor (not shown), including above-mentioned pump assembly.Compressor further includes motor
60 and the oil pump 70 that is connect with the shaft 30 of pump assembly.During the operation of the compressor, motor drives lower rotary shaft 30 to rotate, sliding
Piece 40 is stretched out from sliding vane groove 311 under the influence of centrifugal force, and is contacted with the inner surface of cylinder 20.With the steady fortune of compressor
Row, slide plate 40 start to move reciprocatingly in sliding vane groove 311, and the head of slide plate 40 is contacted with the inner surface of cylinder 20, and is driven
The inner ring of cylinder 20 is rotated.Entire moon teeth cavity is divided into 3 independent chambers by the inner ring of 3 slide plates 40 and cylinder 20,3
Chamber periodically expands, reduces, to realize air-breathing, compression and the exhaust of compressor.Wherein, slide plate 40 and sliding vane groove 311
Enclosure space is formed, we term it back pressure cavity 311a, back pressure cavity 311a also there are 3, and with the operating of compressor week
The amplification and diminution of phase property.
As shown in Figure 1, oil pump 70 is immersed in the oil sump of compression motor spindle, the rotation of shaft 30 drives oil pump 70 to rotate.In oil
Under the action of pump 70, lubricating oil is entered to by the internal oil passages of pump assembly in 3 back pressure cavity 311a, at this time 3 back pressure cavities
Lubricating oil is filled in 311a, and oil pressure is pressure at expulsion (high pressure).Specifically, lubricating oil enters spindle central by oil sump
It is entered in back pressure cavity 311a in hole 32 and via the gap delta of shaft side opening 33 and upper flange 11 and 31 upper surface of rotor portions, into
And the head of slide plate 40 is made to be close to the inner surface of cylinder 20.
Optionally, oil pump 70 is positive displacement pump.
Present invention also provides a kind of heat transmission equipment (not shown), including above-mentioned compressor.Optionally, heat transmission equipment is
Air conditioner.
Embodiment two
The pump assembly of embodiment two and embodiment one difference lies in：The operation principle of regulating part is different.
As shown in Figures 9 to 11, when the pressure of inner cavity 21 is more than the pressure of back pressure cavity 311a, regulating part 50 moves to appearance
The connectivity part for setting slot section 313 and the second slot section 314, to cut off the connected state of storage tank section 313 and the second slot section 314.In this way,
In pump assembly operational process, the pressure size relationship of pressure and back pressure cavity 311a regardless of inner cavity 21 is cut off always
The connected state of first slot section 312 and the second slot section 314, and then ensure that inner cavity 21 will not be connected to back pressure cavity 311a, and
It is the volume of 50 both sides of movement change regulating part by regulating part 50 in storage tank section 313.
Specifically, regulating part 50 be slidably disposed in storage tank section 313 and by its both sides be divided into first area and
Second area, wherein inner cavity 21 is located in first area, and back pressure cavity 311a is located in second area, is slided in regulating part 50
The volume of Cheng Zhong, first area and second area changes, to change the back pressure value in sliding vane groove 311.In pump assembly
Expiratory phase, the pressure of inner cavity 21 are less than the pressure of back pressure cavity 311a, and regulating part 50 slides into the first slot section 312 and storage tank section
313 connectivity part, to cut off the connected state of the first slot section 312 and storage tank section 313, then the volume of second area increases, the
The volume in one region relatively reduces, then the pressure value in second area relatively reduces；It is interior in the exhaust phase of pump assembly
The pressure of chamber 21 is more than the pressure of back pressure cavity 311a, and regulating part 50 moves to the connection of storage tank section 313 and the second slot section 314
Place, to cut off the connected state of storage tank section 313 and the second slot section 314, then the volume of second area reduces, the appearance of first area
Product relatively increases, then the pressure value in second area relatively increases, and the pressure value in back pressure cavity 311a increases, so that
The head of slide plate 40 is in contact with the inner surface of cylinder 20 always.
As shown in figure 9, regulating part 50 is sliding block, storage tank section 313 is from the first slot section 312 to the direction of the second slot section 314
Extend, so that sliding block can slidably reciprocate in storage tank section 313.Above-mentioned setting ensures that regulating part 50 can be in storage tank section
It is swimmingly slided in 313, and then improves the structural reliability of pump assembly.The structure of above structure is simple, is easily worked, is real
It is existing.
As shown in figure 11, sliding block has one group of sliding mating surface 51 being oppositely arranged, sliding mating surface 51 and storage tank section
There is preset distance D, preset distance D to be more than or equal to 0.01mm between 313 cell wall and be less than or equal to 0.02mm.In this way, above-mentioned
Numerical value is arranged so as to seal cooperation between regulating part 50 and sliding mating surface 51, and regulating part 50 can either be ensured in storage tank section
Sliding in 313, and the first slot section 312 is prevented to be connected to and influence the adjusting of regulating part 50 with the gas in the second slot section 314
Performance.
As shown in Figure 10, the second slot section 314 includes the third pilot trench section 314a and the 4th pilot trench section 314b being sequentially connected to, and
The two is arranged in angle, and third pilot trench section 314a is relative to the 4th pilot trench section 314b close to storage tank section 313.Wherein, the 4th son
Slot section 314b is the recess portion being opened on the cell wall of sliding vane groove 311, and recess portion extends to the tail portion of sliding vane groove 311 to be connected to the back of the body
Press chamber 311a.In this way, the 4th pilot trench section 314b is connected to back pressure cavity 311a, and then by controlling the 4th pilot trench section 314b and first
The i.e. controllable back pressure cavity 311a of the connected state of slot section 312 and the connected state of the first slot section 312 and inner cavity 21.Above-mentioned setting makes
The structure for obtaining the rotor portions 31 of shaft 30 is simple, is easily worked, reduces the processing cost of pump assembly.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
In pump assembly operational process, regulating part slides in pressure regulating mechanism under the action of pressure difference, to adjust
Pressure difference between the inner cavity and back pressure cavity of displacements of cylinders, it is ensured that the head of slide plate is in contact with cylinder always, and then prevents the pump housing
Component causes slide plate to be hit with cylinder on exhaust phase slide plate head and cylinder surfaces disengagement, solves in the prior art
The slide plate of pump assembly is easier to be detached from cylinder, influences the problem of pump assembly working performance, reduces the power consumption of pump assembly, carries
Rise the operational reliability of pump assembly.
Obviously, above-mentioned described embodiment only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiment should all belong to the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (18)
1. a kind of pump assembly, which is characterized in that including：
Shaft (30), the rotor portions (31) of the shaft (30) have the sliding vane groove (311) for accommodating slide plate (40)；
Pressure regulating mechanism, one end of the pressure regulating mechanism are connected to the back pressure cavity (311a) of the sliding vane groove (311), institute
The other end for stating pressure regulating mechanism is connected to the inner cavity (21) of cylinder (20)；
Regulating part (50) is arranged in the pressure regulating mechanism, when the inner cavity (21) and the back pressure cavity (311a) exist
When pressure difference, the regulating part (50) is slided under the action of the pressure difference in the pressure regulating mechanism, so that described
The head of slide plate (40) is in contact with the inner surface of the cylinder (20) always.
2. pump assembly according to claim 1, which is characterized in that the pressure regulating mechanism is to be arranged in the rotor
Connectivity slot in portion (31).
3. pump assembly according to claim 2, which is characterized in that the connectivity slot includes the first slot section being sequentially connected to
(312), storage tank section (313) and the second slot section (314), the first slot section (312) are connected to the inner cavity (21), and described
Two slot sections (314) are connected to the back pressure cavity (311a), and the regulating part (50) is movably arranged on the storage tank section (313)
It is interior, and when the pressure of the inner cavity (21) is less than the pressure of the back pressure cavity (311a), the regulating part (50) slides into institute
The connectivity part for stating the first slot section (312) and the storage tank section (313), to cut off the first slot section (312) and described accommodating
The connected state of slot section (313).
4. pump assembly according to claim 3, which is characterized in that when the pressure of the inner cavity (21) is more than the back pressure
When the pressure of chamber (311a), the regulating part (50) sliding in the storage tank section (313), so that the first slot section
(312) it is connected to the second slot section (314).
5. pump assembly according to claim 4, which is characterized in that the second slot section (314) is to be opened in the cunning
Recess portion on the cell wall of film trap (311), and the recess portion extends to the tail portion of the sliding vane groove (311) to be connected to the back pressure
Chamber (311a).
6. pump assembly according to claim 4, which is characterized in that the regulating part (50) is column structure.
7. pump assembly according to claim 4, which is characterized in that the storage tank section (313) is close to second slot
The cell wall of section (314) side is step surface, and the step surface is arranged along the axial direction of the pump assembly, when the inner cavity (21)
Pressure when being more than the pressure of the back pressure cavity (311a), the gas in the inner cavity (21) is flowed through described by the step surface
Second slot section (314) is to enter in the back pressure cavity (311a).
8. pump assembly according to claim 3, which is characterized in that when the pressure of the inner cavity (21) is more than the back pressure
When the pressure of chamber (311a), the regulating part (50) moves to the company of the storage tank section (313) and the second slot section (314)
Logical place, to cut off the connected state of the storage tank section (313) and the second slot section (314).
9. pump assembly according to claim 8, which is characterized in that the regulating part (50) is sliding block, the storage tank
Section (313) is extended from the first slot section (312) to the direction of the second slot section (314), so that the sliding block can be in institute
It states and slidably reciprocates in storage tank section (313).
10. pump assembly according to claim 9, which is characterized in that the sliding block has one group of sliding being oppositely arranged
Mating surface (51), it is described with preset distance D between the sliding mating surface (51) and the cell wall of the storage tank section (313)
Preset distance D is more than or equal to 0.01mm and is less than or equal to 0.02mm.
11. the pump assembly according to any one of claim 3 to 10, which is characterized in that the first slot section (312) packet
The the first pilot trench section (312a) and the second pilot trench section (312b) being sequentially connected to are included, and the two is arranged in angle, first pilot trench
Section (312a) is arranged relative to the second pilot trench section (312b) far from the storage tank section (313).
12. pump assembly according to claim 11, which is characterized in that the width of the first pilot trench section (312a) is more than
The width of the second pilot trench section (312b).
13. pump assembly according to claim 8, which is characterized in that the second slot section (314) includes sequentially being connected to
Third pilot trench section (314a) and the 4th pilot trench section (314b), and the two is arranged in angle, the third pilot trench section (314a) is opposite
It is arranged close to the storage tank section (313) in the 4th pilot trench section (314b).
14. pump assembly according to claim 13, which is characterized in that the 4th pilot trench section (314b) is is opened in
State the recess portion on the cell wall of sliding vane groove (311), and the recess portion extend to the tail portion of the sliding vane groove (311) it is described to be connected to
Back pressure cavity (311a).
15. pump assembly according to claim 1, which is characterized in that the cylinder (20) is rolling bearing type cylinder.
16. pump assembly according to claim 2, which is characterized in that described on the axis direction of the shaft (30)
The height of rotor portions (31) is H, and the groove depth of the connectivity slot is h, is met
17. a kind of compressor, which is characterized in that including the pump assembly described in any one of claim 1 to 16.
18. a kind of heat transmission equipment, which is characterized in that including the compressor described in claim 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375208.XA CN108397383B (en) | 2018-04-24 | 2018-04-24 | Pump body assembly, compressor and heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375208.XA CN108397383B (en) | 2018-04-24 | 2018-04-24 | Pump body assembly, compressor and heat exchange equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN108397383A true CN108397383A (en) | 2018-08-14 |
| CN108397383B CN108397383B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810375208.XA Active CN108397383B (en) | 2018-04-24 | 2018-04-24 | Pump body assembly, compressor and heat exchange equipment |
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| Country | Link |
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| CN (1) | CN108397383B (en) |
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| CN111065824A (en) * | 2018-08-16 | 2020-04-24 | Lg电子株式会社 | Rotary compressor |
| CN112324660A (en) * | 2020-10-09 | 2021-02-05 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| US11898562B2 (en) | 2019-02-27 | 2024-02-13 | Gree Electric Appliances, Inc. Of Zhuhai | Pumping assembly, compressor and air conditioning equipment |
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| CN112324660B (en) * | 2020-10-09 | 2021-10-15 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
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|---|---|
| CN108397383B (en) | 2024-04-16 |
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