CN109185130A - A kind of pump head and scroll air compressor for scroll air compressor - Google Patents
A kind of pump head and scroll air compressor for scroll air compressor Download PDFInfo
- Publication number
- CN109185130A CN109185130A CN201811260174.6A CN201811260174A CN109185130A CN 109185130 A CN109185130 A CN 109185130A CN 201811260174 A CN201811260174 A CN 201811260174A CN 109185130 A CN109185130 A CN 109185130A
- Authority
- CN
- China
- Prior art keywords
- scroll
- pump head
- air compressor
- shell
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007906 compression Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 21
- 238000004321 preservation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007667 floating Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
-
- 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
-
- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
Abstract
The present invention relates to new-energy automobile braking technology fields, and in particular to a kind of pump head and scroll air compressor for scroll air compressor.Pump head provided by the present application for scroll air compressor; including shell and the scroll plate component being disposed in the housing, anti-rotation crankshaft and elastic component; flying height is formed in the pump head; when in scroll air compressor stopping process; elastic component provides an elastic force for scroll plate component, so that flying height is immobilized and is maintained at maximum rating, and the gap of scroll plate component internal is minimum at this time; it that is to say pump housing gap minimum, pump head inner sealing is good；When pump head internal pressure increase overcomes the elastic force of elastic component, reduce the flying height inside pump head, pump housing gap increases at this time, the deformation of the pump housing can be absorbed by the increase in pump housing gap, and then cause seal member overcompression to be worn after effectively avoiding pump housing heat preservation deformation, the reliability of sealing element is improved under the premise of guaranteeing sealing.
Description
Technical field
The present invention relates to Compressor Technology fields, and in particular to a kind of pump head and the sky that is vortexed for scroll air compressor
Air compressor.
Background technique
Oil-free turbo-compressor is because it can be realized oil free compression and high-efficient, small in size, light weight, run smoothly
Feature is widely used in new energy vehicle brake field.In general, screw compressor by casing, fixed scroll, orbiter,
Bracket, crankshaft, anti-rotation mechanism, cooling system and motor are constituted.The molded line of dynamic and static scroll plate is spiral shape, orbiter
Opposite fixed scroll is eccentric and differs 180 ° of installations, and multiple crescent-shaped spaces are then formd between dynamic and static scroll plate.In dynamic whirlpool
When capstan makees the revolution translation without rotation using the center of fixed scroll as rotation center and with certain radius of turn, outer ring crescent moon
Shape space will be constantly mobile to center, at this point, air is gradually pushed to central space, volume constantly reduces and pressure is continuous
It increases, until communicating with central exhaust port, pressure-air is discharged the pump housing, completes compression process.
It wherein in oil-free turbo-compressor, is bolted to connection between orbiter and bearing block, anti-rotation eccentric
Crank axle includes two cylinders, and the first cylinder is fixedly connected with a pair of bearings, the second cylinder and second pair of bearing inner race gap
Cooperation, second pair of bearing outer ring interference be fixed on bracket, and the second cylindrical center opens up bolt hole, by screw by eccentric mechanism
Pin is fixed on the inner ring of second pair of bearing, and crank-pin is rotated together with bearing inner race, but it is above-mentioned using bolt by dynamic whirlpool
Capstan and bearing block link together, and dynamic and static scroll plate is axially fixed on bracket, and air compressor machine is in high temperature and pressure operational process
Deflection of pump body causes pump housing gap to reduce (gap namely between the orbiting and fixed scroll), and dynamic and static scroll plate after a deformation can
Lead to sealing part abrasion, and then causes pump housing poor reliability.
Summary of the invention
(1) the technical problems to be solved by the present invention are: existing turbo-compressor is consolidated eccentric crank pin by screw
It is scheduled on the inner ring of second pair of bearing, dynamic and static scroll plate axial restraint, causes to pump in the deformation of high temperature and pressure operational process middle pump body
Body space reduces, and leads to sealing part abrasion.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of pump heads for scroll air compressor, including shell
Body and the scroll plate component being disposed in the housing, anti-rotation crankshaft and elastic component, one end of the anti-rotation crankshaft and shell
Body rotation connection, the other end are rotatedly connected with the scroll plate component, and the anti-rotation crank throw is for preventing the scroll plate group
Part rotation；Flying height is formed in the pump head, the elastic component is used to provide an elastic force, institute for the scroll plate component
State scroll plate component in elastic force and the pump head under the action of pressure along the axial movement of the anti-rotation crankshaft, to increase or
Reduce the flying height.
According to one embodiment of present invention, shape between the anti-rotation crankshaft and the shell or the scroll plate component
At the flying height, one end of the anti-rotation crankshaft is fixedly connected with one in shell and scroll plate component, described anti-
The other end of rotation crankshaft is connect with another in shell and scroll plate component by elastic component, and the elastic component is used for as institute
It states anti-rotation crankshaft and provides one along axial elastic force.
According to one embodiment of present invention, the anti-rotation crankshaft includes shaft body and is eccentrically set on the shaft body
On eccentric shaft, the shaft body connect with the housing into rotation, and the eccentric shaft and the scroll plate component are rotatablely connected.
According to one embodiment of present invention, the shaft body is connect by elastic component with the shell, the eccentric shaft
It is rotatablely connected with the scroll plate component, forms the flying height between the shaft body and the shell.
According to one embodiment of present invention, the elastic component is compressed spring, and one end of the compressed spring is resisted against
On the shell, the other end is resisted against in the shaft body.
According to one embodiment of present invention, the shaft body is equipped with blind hole, and one end of the compressed spring is resisted against
On the shell, the other end is resisted against in the inner bottom wall of the blind hole.
According to one embodiment of present invention, the shell is equipped with step pin, and an end cap of the compressed spring is in institute
It states on step pin, the other end is resisted against in the inner bottom wall of the blind hole.
According to one embodiment of present invention, the shell is equipped with first axle bearing bore, installation in the first axle bearing bore
There is first bearing, the shaft body is rotatably assorted with the first bearing, and the step pin is set in the first axle bearing bore.
According to one embodiment of present invention, the shaft body further includes the shaft shoulder, the shaft shoulder and the first bearing it
Between form the flying height.
According to one embodiment of present invention, the shaft body is connect with the housing into rotation, and the eccentric shaft passes through bullet
Property part is connected with the scroll plate component, forms the flying height between the eccentric shaft and the scroll plate component.
According to one embodiment of present invention, the scroll plate component is equipped with bearing block, and the bearing block is equipped with the
Two bearing holes are equipped with second bearing in the second bearing hole, and the eccentric shaft and the second bearing are rotatablely connected, it is described partially
The flying height is formed between the shaft shoulder and the second bearing in mandrel.
According to one embodiment of present invention, the elastic component is compressed spring, and one end of the compressed spring is fixed on
On the bearing block, the other end is fixed on the eccentric shaft.
According to one embodiment of present invention, the eccentric shaft is equipped with blind hole, and one end of the compressed spring is fixed on
On the bearing block, the other end is fixed in the inner bottom wall of the blind hole.
According to one embodiment of present invention, the scroll plate component includes mutually matched orbiter and quiet vortex
Disk, the fixed scroll is fixed on the housing, and the orbiter is equipped with bearing block, the bearing block and the dynamic whirlpool
The flying height is formed between capstan, the elastic component is set between the bearing block and the orbiter.
According to one embodiment of present invention, the elastic component is compressed spring, and one end of the compressed spring is resisted against
On orbiter, the other end is resisted against on the bearing block.
It according to one embodiment of present invention, further include step pin, one end of the compressed spring is resisted against the dynamic whirlpool
On capstan, the other end is connected by step pin with the bearing block.
According to one embodiment of present invention, the bearing block is equipped with the first pin hole, and the orbiter is equipped with the
Two pin holes, one end of the step pin are fixed in first pin hole, the other end and the second pin hole clearance fit, described
One end of compressed spring is socketed on the step pin, and the other end is resisted against in the inner bottom wall of second pin hole.
The present invention also provides a kind of scroll air compressors, including pump head as described in any one of the above embodiments.
According to one embodiment of present invention, the scroll air compressor further includes driving motor, the driving motor
It is equipped with drive shaft, the scroll plate component in the drive shaft and the pump head is rotatablely connected.
Beneficial effects of the present invention: the pump head provided by the present application for scroll air compressor, including shell and set
In being formed with flying height in the intracorporal scroll plate component of the shell, anti-rotation crankshaft and elastic component, the pump head, when the sky that is vortexed
In air compressor stopping process, elastic component provides an elastic force for scroll plate component, so that flying height is immobilized and is maintained at most
Big state, the gap of scroll plate component internal is minimum at this time, that is to say pump housing gap minimum, and pump head inner sealing is good；When
Pump head internal pressure increase overcomes the elastic force of elastic component, reduces the flying height inside pump head, and pump housing gap increases at this time, can
The deformation of the pump housing is absorbed by the increase in pump housing gap, and then leads to seal member after effectively avoiding pump housing heat preservation deformation
Overcompression abrasion, improves the reliability of sealing element under the premise of guaranteeing sealing.
Detailed description of the invention
The advantages of above-mentioned and/or additional aspect of the invention, is from the description of the embodiment in conjunction with the following figures by the obvious of change
Be readily appreciated that, in which:
Fig. 1 is the perspective view in the application for the pump head of scroll air compressor；
Fig. 2 is the cross-sectional view of pump head described in embodiment one；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is the structural schematic diagram of elastic component；
Fig. 5 is the cross-sectional view of pump head described in embodiment three；
Fig. 6 is the structural schematic diagram of three bottom bracket of embodiment；
Fig. 7 is the portion the C enlarged drawing of Fig. 5.
Wherein corresponding relationship of the Fig. 1 into Fig. 7 between appended drawing reference and component names are as follows:
1, shell, 11, scroll plate component, 111, orbiter, 112, fixed scroll, the 113, second pin hole, 12, anti-rotation
Crankshaft, 121, shaft body, 122, eccentric shaft, 123, the shaft shoulder, 124, blind hole, 13, flying height, 14, compressed spring, 15, first
Bearing hole, 151, first bearing, 16, step pin, the 161, first cylinder, the 162, second cylinder, 17, bearing block, the 171, second axis
Bearing bore, 172, second bearing, the 173, first pin hole, the 18, first cover board, the 19, second cover board.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
As shown in Figures 1 to 6, the present invention provides a kind of pump head for scroll air compressor, including shell 1 and
Scroll plate component 11, anti-rotation crankshaft 12 and elastic component in the shell 1, one end of the anti-rotation crankshaft 12 and shell
Body 1 is rotatablely connected, and the other end is rotatedly connected with the scroll plate component 11, and the anti-rotation crank throw is for preventing the scroll plate
11 rotation of component；Flying height 13 is formed in the pump head, the elastic component is used to provide one for the scroll plate component 11
A elastic force, the scroll plate component 11 is in elastic force and the pump head along the axial direction of the anti-rotation crankshaft 12 under the action of pressure
It is mobile, to increase or reduce the flying height 13.
Whirlpool provided by the present invention for the pump head of scroll air compressor, including shell 1 and in the shell 1
Capstan component 11, anti-rotation crankshaft 12 and elastic component are formed with flying height 13 in the pump head, wherein the flying height 13
Form an amount of floating for 11 mobile cushioning of scroll plate component in shell, the pump housing gap refer to orbiter 111,
The seal clearance of fixed scroll 112 tooth top and bottom of the tooth, i.e. flying height 13 are integrally equal to amount of floating, amount of floating plus this body space
Entirety is constant；In scroll air compressor stopping process, elastic component is that scroll plate component 11 provides an elastic force, makes to float
Dynamic gap 13, which immobilizes, is maintained at maximum rating, and the gap inside scroll plate component 11 is minimum at this time, that is to say pump housing gap
Minimum, pump head inner sealing are good；When pump head internal pressure increase overcomes the elastic force of elastic component, make between the floating inside pump head
Gap 13 reduces, and since whole amount of floating is constant, pump housing gap increases at this time, can absorb the pump housing by the increase in pump housing gap
Deformation, and then the abrasion of orbiter and fixed scroll is avoided, the reliability of sealing element is improved under the premise of guaranteeing sealing.
The setting of elastic component and flying height 13 realizes the floating of scroll plate component 11 in the application, can pass through floating
Gap 13 drives pump body to have variable gap, the deformation of the pump housing is sponged by pump housing gap, with existing vortex
Disk component 11 is compared with the fixation of shell 1 leads to the changeless pump head in pump housing gap, after effectively avoiding pump housing heat preservation deformation
Cause seal member overcompression to be worn, improves the reliability of sealing element under the premise of guaranteeing sealing.
Embodiment one
As shown in Figures 1 to 4, it is formed between the anti-rotation crankshaft 12 and the shell 1 or the scroll plate component 11
One end of the flying height 13, the anti-rotation crankshaft 12 is fixedly connected with one in shell 1 and scroll plate component 11, institute
The other end for stating anti-rotation crankshaft 12 is connect with another in shell 1 and scroll plate component 11 by elastic component, the elasticity
Part is used to provide one for the anti-rotation crankshaft 12 along axial elastic force.The flying height 13 can be scroll plate component 11
Internal gap that is to say that pump housing gap forms the effect of a snubber, when pump head shutdown does not work, flying height 13
Maximum, pump housing gap are minimum；When pump head internal pressure increases, flying height 13 reduces, and pump housing gap increases, and pump housing gap increases
The deformation quantity of pump housing high temperature deformation is sponged greatly, and then leads to seal member overcompression after effectively avoiding pump housing heat preservation deformation
Abrasion improves the reliability of sealing element under the premise of guaranteeing sealing.
As shown in Figures 1 to 4, the anti-rotation crankshaft 12 includes shaft body 121 and is eccentrically set on the shaft body 121
On eccentric shaft 122, the shaft body 121 is rotatablely connected with the shell 1, the eccentric shaft 122 and the scroll plate component
11 rotation connections；The shaft body 121 is connect by elastic component with the shell 1, the eccentric shaft 122 and the scroll plate group
Part 11 is rotatablely connected, and the flying height 13 is formed between the shaft body 121 and the shell 1.In this way when pump head is shut down not
When work, elastic component is that the anti-rotation crankshaft 12 provides an elastic force towards scroll plate component 11, between floating at this time
Gap 13 is maximum, and pump housing gap is minimum；When pump head internal pressure increases, pump body pressure overcomes elastic component elastic force, pushes institute
It is mobile axially towards 1 side of shell to state anti-rotation crankshaft 12, flying height 13 reduces at this time, and pump housing gap increases, between the pump housing
Gap increase sponges the deformation quantity of pump housing high temperature deformation, and then leads to seal member mistake after effectively avoiding pump housing heat preservation deformation
Compression abrasion, improves the reliability of sealing element under the premise of guaranteeing sealing.
As shown in Figure 2 and Figure 4, the elastic component is compressed spring 14, and one end of the compressed spring 14 is resisted against described
On shell 1, the other end is resisted against in the shaft body 121；Compressed spring 14 is in compressive state in the initial state, is described
Anti- rotation crankshaft 12 provides one by shell 1 towards an elastic force of scroll plate component 11, and the elastic force that compressed spring 14 provides makes
The shaft body 121 and the shell 1 between keep a maximum flying height 13, when 11 internal pressure of scroll plate component
Scroll plate component 11 provides the pressure towards shell 1 for anti-rotation crankshaft 12 and opens the bullet for overcoming compressed spring 14 when increase
Power, the flying height 13 formed between the shaft body 121 and the shell 1 at this time become smaller, and pump housing gap increases.
As shown in Figures 2 and 3, the shaft body 121 is equipped with blind hole 124, and one end of the compressed spring 14 is resisted against
On the shell 1, the other end is resisted against in the inner bottom wall of the blind hole 124；Since the shaft body 121 is equipped with blind hole 124,
Therefore the position of compressed spring 14 can be defined, to prevent the dislocation of compressed spring 14 to be detached from installation site, together
When blind hole 124 setting can also reduce 14 the space occupied of compressed spring, and then reduce the volume of ontology, realization device is small-sized
The requirement of change.
Optionally, as shown in Figures 2 to 4, the shell 1 is equipped with step pin 16, an end cap of the compressed spring 14
On the step pin 16, the other end is resisted against in the inner bottom wall of the blind hole 124, wherein the step pin 16 includes coaxially being in
Step-like the first cylinder 161 and the second cylinder 162, the outer diameter of first cylinder 161 are greater than the outer of second cylinder 162
Diameter, the internal diameter of the compressed spring 14 is greater than the outer diameter of second cylinder 162, and the outer diameter of the compressed spring 14 is less than institute
The outer diameter of the first cylinder 161 is stated, such compressed spring 14 can be set in second main body.It is wherein described in this application
The first small cylinder 161 of its street can be with the shell 1 integrated molding be also possible to by welding or snap fit with it is described
The inner wall of shell 1 is fixedly connected.First cylinder 161 and second cylinder 162 are an integral structure, and can be described
One circle of outside cutting of first cylinder 161 forms second cylinder 162, can also use integrated injection molding.
Optionally, the shell 1 is also possible in the present embodiment equipped with blind hole 124, the shaft body 121 be equipped with
The step pin 16 that the blind hole 124 cooperates equally can be realized in the application through blind hole 124 and step pin 16 to compressed spring
14 purposes being fixed.
As shown in Figures 2 to 4, the shell 1 is equipped with first axle bearing bore 15, and the is equipped in the first axle bearing bore 15
One bearing 151, the shaft body 121 are rotatably assorted with the first bearing 151, and the step pin 16 is set to the first bearing
In hole 15；The scroll plate component 11 is equipped with bearing block 17, and the bearing block 17 is equipped with second bearing hole 171, and described the
Second bearing 172 is equipped in two bearing holes 171, the eccentric shaft 122 is rotatablely connected with the second bearing 172, due to described
Bearing body and eccentric shaft 122 are eccentric settings, thus can limit the scroll plate component 11 do plane rotation movement without
Rotation.
As shown in Figures 2 and 3, the scroll plate component 11 includes that the scroll plate component 11 includes mutually matched dynamic
Scroll plate 111 and fixed scroll 112, the fixed scroll 112 are fixed on the shell 1, and the orbiter 111 is equipped with
The bearing block 17, the fixed scroll 112 are fixed by screws on the shell 1, and orbiter 111 is bent by anti-rotation
Axis 12 realizes anti-rotation function, and during compressor operation, the air of low-temp low-pressure enters dynamic and static scroll plate 112 from air entry
It is compressed in the crescent confined space of formation, the gas for forming high temperature and pressure is arranged from exhaust outlet to be discharged, and air is in dynamic vortex
Pressure between disk 111 and fixed scroll 112 between compression process middle pump body increases, i.e., the described orbiter 111 and quiet vortex
Pressure between disk 112 increases, and orbiter 111 and fixed scroll 112 can be deformed, and due to elastic component and flying height
13 setting that is to say 111 He of orbiter so that orbiter 111 can move in the circumferential relative to fixed scroll 112
Pump housing gap between fixed scroll 112 is absorbed the deformation for neutralizing the pump housing by pump housing gap, and then effectively prevents the pump housing
The problem of causing the seal member overcompression between orbiter 111 and fixed scroll 112 to be worn after heat preservation deformation, is guaranteeing to move
The reliability and service life of sealing element are improved under the premise of sealing between scroll plate 111 and fixed scroll 112.While first
Pass through grease lubrication, the available good lubrication of compressed spring 14 in bearing 151 or second bearing 172.
It optionally, is interference fit between the eccentric shaft 122 and the second bearing 172；The second bearing 172 is logical
It crosses the second cover board 19 to be fixed in the second bearing hole 171, second cover board 19 passes through screw and the orbiter 111
It is fixedly connected, further, the outer ring of the second bearing 172 is fixed on the second bearing hole 171 by the second cover board 19
It is interior, while the eccentric shaft 122 of the anti-rotation crankshaft 12 and the inner ring of the second bearing 172 are interference fitted；The shaft body
Clearance fit between 121 and the first bearing 151, the specific first bearing 151 are fixed on institute by the first cover board 18
It states in first axle bearing bore 15, first cover board 18 is fixedly connected by screw with the shell 1；Preferably, the first axle
151 outer ring is held to be fixed in the first axle bearing bore 15 by the first cover board 18, the inner ring of the first bearing 151 with it is described
121 clearance fit of shaft body.In this way when carrying out pump head assembly, first fixed scroll 112 is fixed on the shell 1, then
Orbiter 111 is engaged with the fixed scroll 112, is being to be fixedly connected with bearing block 17 with orbiter 111 with screw,
Then second bearing 172 is fixed in second bearing hole 171 using the second cover board 19, then makes eccentric shaft 122 and the second axis
Hold 172 interference fits, then first axle bearing bore 15 install first bearing 151, and by the first cover board 18 to first bearing 151 into
Row is fixed, and is inserted into first bearing 151 and 151 clearance fit of first bearing, completion assembly by shaft body 121.
As shown in figure 3, the shaft body 121 is equipped with the shaft shoulder 113, the flying height 13 is the shaft shoulder 113 and the
Gap between one bearing 151, original state is since compressed spring 14 gives described 12 1 elastic force of anti-rotation crankshaft, and elastic force is by moving
Scroll plate 111 is towards fixed scroll 112, therefore the gap between the shaft shoulder 113 and the first bearing 151 is maximum, when pump housing work
When making internal pressure increase, pressure overcomes spring force, makes anti-rotation crankshaft 12 by fixed scroll 112 towards fixed scroll 112
Direction it is mobile, therefore flying height 13 becomes smaller, and then the pump housing gap between orbiter 111 and fixed scroll 112 increases.
Embodiment two
The present embodiment and the technical solution of embodiment one are substantially the same, and the main distinction is, are floated described in the present embodiment
Dynamic gap 13 is that the eccentric shaft 122 is formed with the scroll plate component 11, that is to say the eccentric shaft 122 and the bearing
The flying height 13 is formed between seat 17；Specifically, the flying height 13 is the shaft shoulder 113 on the anti-rotation crankshaft 12
With the gap between second bearing 172, the elastic component is compressed spring 14, and one end of the compressed spring 14 is fixed on described
On bearing block 17, the other end is fixed on the eccentric shaft 122；Since compressed spring 14 is needed to the anti-rotation crankshaft 12 1
A elastic force towards 111 direction of orbiter, therefore 14 original state of compressed spring is in tensional state；Preferably, institute
Eccentric shaft 122 is stated equipped with blind hole 124, one end of the compressed spring 14 is fixed on the bearing block 17, and the other end is fixed
In the inner bottom wall of the blind hole 124.
It optionally, is clearance fit between eccentric shaft 122 described in the present embodiment and second bearing 172, with described first
It is interference fit between bearing 151；In this way when carrying out pump head assembly, first bearing 151 is first mounted on first axle bearing bore 15
It is interior, then first bearing 151 is fixed by the first cover board 18, then matches shaft body 121 and 151 interference of first bearing
It closes, then second bearing 172 is fixed in second bearing hole 171, and be fixed by the second cover board 19, by eccentric shaft 122
With 172 clearance fit of second bearing；Then it reuses screw orbiter 111 and bearing block 17 link together, then will
Fixed scroll 112 is fixed on the shell 1, and engages with orbiter 111.
Embodiment three
As shown in Figures 5 to 7, the pump head for scroll air compressor provided in this embodiment include shell 1 with
And scroll plate component 11, anti-rotation crank throw week and elastic component in the shell 1, the scroll plate component 11 includes mutual
The orbiter 111 and fixed scroll 112 of cooperation, the fixed scroll 112 are fixed on the shell 1, the orbiter
111 are equipped with bearing block 17, and the flying height 13, the bullet are formed between the bearing block 17 and the orbiter 111
Property part be set between the bearing block 17 and the orbiter 111.
Elastic component is in compressive state in the initial state, provides one by orbiter 111 for the orbiter 111
Towards the elastic force of fixed scroll 112, the bearing block 17 and the described and orbiter 111 that the elastic force that elastic component provides makes
Between keep a maximum flying height 13, when orbiter 111 and 112 compressed air internal pressure of fixed scroll increase
When, the pressure opposite with elastic component elastic force by one of orbiter 111, the bearing block 17 and the orbiter at this time
The flying height 13 formed between 111 becomes smaller, and the pump housing gap between orbiter 111 and fixed scroll 112 increases, due to dynamic
Scroll plate 111 can between bearing block 17 and fixed scroll 112 axial floating, therefore can absorb and neutralize orbiter
111 and fixed scroll 112 deformation, effectively avoid the pump housing heat preservation deformation after cause seal member overcompression wear, guarantee
The reliability of sealing element is improved under the premise of sealing.
The elastic component is compressed spring 14, and one end of the compressed spring 14 is resisted against on orbiter 111, the other end
It is resisted against on the bearing block 17；It further include step pin 16, one end of the compressed spring 14 is resisted against the orbiter 111
On, the other end is connected by step pin 16 with the bearing block 17；As shown in Figures 5 to 7, the bearing block 17 is equipped with first
Pin hole 173, the orbiter 111 are equipped with the second pin hole 113, and one end of the step pin 16 is fixed on first pin hole
In 173, the other end and 113 clearance fit of the second pin hole, one end of the compressed spring 14 is socketed in the step pin 16
On, the other end is resisted against in the inner bottom wall of second pin hole 113.Preferably, in the bearing block 17 and the orbiter
It is equipped with multiple groups compressed spring 14 between 111, and then sets on the bearing block 17 that there are three the first pin holes 173.
Example IV
A kind of scroll air compressor is present embodiments provided, including pump head described in any of the above-described embodiment, wherein institute
Stating scroll air compressor further includes driving motor, and the driving motor is equipped with drive shaft, the drive shaft and the pump head
Interior scroll plate component 11 is rotatablely connected.
Wherein scroll air compressor includes driving motor, mounting base and pump head, the driving motor and the pump head
It is each attached on the mounting base；Orbiter 111,112 bearing block 17 of fixed scroll and anti-rotation crankshaft are equipped in pump head
12, the driving motor and drive shaft are sequentially connected, and drive shaft includes ontology and is eccentrically set on inclined in the shaft body 121
Heart pin；The pump head includes drive end bearing bracket, shell 1 and rear end cap, and the fixed scroll 112 is fixed by screws on shell 1, institute
It is identical as the eccentricity of the drive shaft to state anti-rotation crankshaft 12, for limiting 111 rotation of orbiter, makes the dynamic whirlpool
Capstan 111 is merely able to do eccentric rotary motion under the drive of drive shaft；Optionally, the anti-rotation crankshaft of multiple groups is equipped in pump head
12, it can guarantee the equilibrium that do not stress in pump head in this way, the rear end cap is equipped with air inlet pipe, the air inlet pipe and the quiet vortex
The compression chamber connection formed between disk 112 and orbiter 111.In the screw compressor course of work, passed through by driving motor
Drive shaft driving orbiter 111 does revolution translation, and orbiter 111 and the intermeshing of fixed scroll 112 are to form crescent moon
Shape compression chamber, as air enters compression chamber by air intake duct, the work of orbiter 111 continues revolution and is translatable and remains good
Meshing state, compression chamber constantly elapses to center, and volume constantly reduces, and cavity internal pressure constantly rises；Make a reservation for when compression reaches
When compression ratio, pressure-air is discharged by the center exhaust outlet of fixed scroll 112 by exhaust valve.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relatively heavy
The property wanted.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " connects
It is logical ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be direct connection, can also be can be by intermediary indirect communication
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (19)
1. a kind of pump head for scroll air compressor, it is characterised in that: including shell (1) and be set to the shell (1)
Interior scroll plate component (11), anti-rotation crankshaft (12) and elastic component, one end and shell (1) of the anti-rotation crankshaft (12) turn
Dynamic connection, the other end are rotatedly connected with the scroll plate component (11), and the anti-rotation crank throw is for preventing the scroll plate group
Part (11) rotation；It is formed in the pump head flying height (13), the elastic component is used to mention for the scroll plate component (11)
For an elastic force, the scroll plate component (11) is in elastic force and the pump head along the anti-rotation crankshaft under the action of pressure
(12) axial movement, to increase or reduce the flying height (13).
2. the pump head according to claim 1 for scroll air compressor, it is characterised in that: the anti-rotation crankshaft
(12) it is formed between the shell (1) or the scroll plate component (11) flying height (13), the anti-rotation crankshaft
(12) one end is fixedly connected with one in shell (1) and scroll plate component (11), the anti-rotation crankshaft (12) it is another
End is connect with another in shell (1) and scroll plate component (11) by elastic component, and the elastic component is used to prevent certainly to be described
Turn crankshaft (12) and provides one along axial elastic force.
3. the pump head according to claim 2 for scroll air compressor, it is characterised in that: the anti-rotation crankshaft
It (12) include shaft body (121) and the eccentric shaft (122) being eccentrically set on the shaft body (121), the shaft body (121)
It is rotatablely connected with the shell (1), the eccentric shaft (122) and the scroll plate component (11) are rotatablely connected.
4. the pump head according to claim 3 for scroll air compressor, it is characterised in that: the shaft body (121)
It is connect by elastic component with the shell (1), the eccentric shaft (122) and the scroll plate component (11) are rotatablely connected, described
The flying height (13) are formed between shaft body (121) and the shell (1).
5. the pump head according to claim 4 for scroll air compressor, it is characterised in that: the elastic component is compression
One end of spring (14), the compressed spring (14) is resisted against on the shell (1), and the other end is resisted against the shaft body
(121) on.
6. the pump head according to claim 5 for scroll air compressor, it is characterised in that: the shaft body (121)
It is equipped with blind hole (124), one end of the compressed spring (14) is resisted against on the shell (1), and the other end is resisted against described blind
In the inner bottom wall in hole (124).
7. the pump head according to claim 6 for scroll air compressor, it is characterised in that: set on the shell (1)
Have step pin (16), for an end cap of the compressed spring (14) on the step pin (16), the other end is resisted against the blind hole
(124) in inner bottom wall.
8. the pump head according to claim 7 for scroll air compressor, it is characterised in that: set on the shell (1)
Have first axle bearing bore (15), is equipped with first bearing (151) in the first axle bearing bore (15), the shaft body (121) and institute
It states first bearing (151) to be rotatably assorted, the step pin (16) is set in the first axle bearing bore (15).
9. the pump head according to claim 8 for scroll air compressor, it is characterised in that: the shaft body (121)
Further include the shaft shoulder (123), forms the flying height (13) between the shaft shoulder (123) and the first bearing (151).
10. the pump head according to claim 3 for scroll air compressor, it is characterised in that: the shaft body (121)
It is rotatablely connected with the shell (1), the eccentric shaft (122) is connected by elastic component with the scroll plate component (11), described
The flying height (13) are formed between eccentric shaft (122) and the scroll plate component (11).
11. the pump head according to claim 10 for scroll air compressor, it is characterised in that: the scroll plate component
(11) bearing block (17) are equipped with, the bearing block (17) is equipped with second bearing hole (171), the second bearing hole (171)
Interior to be equipped with second bearing (172), the eccentric shaft (122) and the second bearing (172) are rotatablely connected, the eccentric shaft
(122) flying height (13) are formed between the shaft shoulder (123) on and the second bearing (172).
12. the pump head according to claim 11 for scroll air compressor, it is characterised in that: the elastic component is pressure
One end of contracting spring (14), the compressed spring (14) is fixed on the bearing block (17), and the other end is fixed on the bias
On axis (122).
13. the pump head according to claim 12 for scroll air compressor, it is characterised in that: the eccentric shaft
(122) blind hole (124) are equipped with, one end of the compressed spring (14) is fixed on the bearing block (17), and the other end is fixed
In the inner bottom wall of the blind hole (124).
14. the pump head according to claim 1 for scroll air compressor, it is characterised in that: the scroll plate component
It (11) include mutually matched orbiter (111) and fixed scroll (112), the fixed scroll (112) is fixed on the shell
On body (1), the orbiter (111) is equipped with bearing block (17), the bearing block (17) and the orbiter (111) it
Between formed the flying height (13), the elastic component be set between the bearing block (17) and the orbiter (111).
15. the pump head according to claim 14 for scroll air compressor, it is characterised in that: the elastic component is pressure
One end of contracting spring (14), the compressed spring (14) is resisted against on orbiter (111), and the other end is resisted against the bearing block
(17) on.
16. the pump head according to claim 15 for scroll air compressor, it is characterised in that: further include step pin
(16), one end of the compressed spring (14) is resisted against on the orbiter (111), and the other end passes through step pin (16) and institute
Bearing block (17) are stated to be connected.
17. the pump head according to claim 15 for scroll air compressor, it is characterised in that: the bearing block (17)
It is equipped with the first pin hole (173), the orbiter (111) is equipped with the second pin hole (113), one end of the step pin (16)
It is fixed in first pin hole (173), the other end and the second pin hole (113) clearance fit, the compressed spring (14)
One end be socketed on the step pin (16), the other end is resisted against in the inner bottom wall of second pin hole (113).
18. a kind of scroll air compressor, it is characterised in that: including the described in any item pump heads of such as claim 1 to 17.
19. scroll air compressor according to claim 18, it is characterised in that: it further include driving motor, the driving
Motor is equipped with drive shaft, and the scroll plate component (11) in the drive shaft and the pump head is rotatablely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260174.6A CN109185130A (en) | 2018-10-26 | 2018-10-26 | A kind of pump head and scroll air compressor for scroll air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260174.6A CN109185130A (en) | 2018-10-26 | 2018-10-26 | A kind of pump head and scroll air compressor for scroll air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185130A true CN109185130A (en) | 2019-01-11 |
Family
ID=64943933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811260174.6A Pending CN109185130A (en) | 2018-10-26 | 2018-10-26 | A kind of pump head and scroll air compressor for scroll air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185130A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213174A (en) * | 1992-11-30 | 1994-08-02 | Kobe Steel Ltd | Scroll compressor |
| US6514059B1 (en) * | 1999-06-08 | 2003-02-04 | Mitsubishi Heavy Industries, Ltd. | Scroll compressor |
| CN203161524U (en) * | 2013-02-22 | 2013-08-28 | 毕晴春 | Internal gear pump |
| JP2014136985A (en) * | 2013-01-16 | 2014-07-28 | Panasonic Corp | Scroll type compressor |
| WO2015122111A1 (en) * | 2014-02-17 | 2015-08-20 | 三菱重工業株式会社 | Scroll compressor |
| CN105604936A (en) * | 2016-03-04 | 2016-05-25 | 广东正力精密机械有限公司 | Oil-free vortex air compressor |
| CN106401952A (en) * | 2016-09-05 | 2017-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and compression cavity sealing structure thereof |
| CN108533487A (en) * | 2018-05-28 | 2018-09-14 | 安徽大富重工机械有限公司 | Screw compressor, refrigeration equipment and automobile |
| CN209414145U (en) * | 2018-10-26 | 2019-09-20 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of pump head and scroll air compressor for scroll air compressor |
-
2018
- 2018-10-26 CN CN201811260174.6A patent/CN109185130A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213174A (en) * | 1992-11-30 | 1994-08-02 | Kobe Steel Ltd | Scroll compressor |
| US6514059B1 (en) * | 1999-06-08 | 2003-02-04 | Mitsubishi Heavy Industries, Ltd. | Scroll compressor |
| JP2014136985A (en) * | 2013-01-16 | 2014-07-28 | Panasonic Corp | Scroll type compressor |
| CN203161524U (en) * | 2013-02-22 | 2013-08-28 | 毕晴春 | Internal gear pump |
| WO2015122111A1 (en) * | 2014-02-17 | 2015-08-20 | 三菱重工業株式会社 | Scroll compressor |
| CN105604936A (en) * | 2016-03-04 | 2016-05-25 | 广东正力精密机械有限公司 | Oil-free vortex air compressor |
| CN106401952A (en) * | 2016-09-05 | 2017-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and compression cavity sealing structure thereof |
| CN108533487A (en) * | 2018-05-28 | 2018-09-14 | 安徽大富重工机械有限公司 | Screw compressor, refrigeration equipment and automobile |
| CN209414145U (en) * | 2018-10-26 | 2019-09-20 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of pump head and scroll air compressor for scroll air compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2295807B1 (en) | Rotary compressor | |
| EP1471258B1 (en) | Electric compressor | |
| US7866961B2 (en) | Compressor with discharge valve arrangement | |
| US8366405B2 (en) | Screw compressor with capacity control slide valve | |
| US9651049B2 (en) | Compressor | |
| CN209414145U (en) | A kind of pump head and scroll air compressor for scroll air compressor | |
| CN111306062A (en) | Rotary compressor for vehicle and vehicle with same | |
| US20050180871A1 (en) | Fluid compressor | |
| CN109681425A (en) | A kind of compressor pump head and the screw compressor using it | |
| CN109185130A (en) | A kind of pump head and scroll air compressor for scroll air compressor | |
| US6183215B1 (en) | Electric motor driven compressor | |
| CN113482932B (en) | Rotary compressor and refrigeration equipment | |
| CN209557236U (en) | A kind of compressor pump head and the screw compressor using it | |
| CN211116581U (en) | Compressor for vehicle | |
| CN111255682B (en) | Scroll compressor having a plurality of scroll members | |
| JP2014136985A (en) | Scroll type compressor | |
| CN113557359B (en) | Vacuum pump and vehicle | |
| CN214036103U (en) | Compressor, air conditioner and vehicle | |
| CN217354757U (en) | Oil supply device for compressor and compressor | |
| CN217381261U (en) | A coupling assembling and compressor for compressor | |
| JPH03210001A (en) | Scroll type fluid device | |
| KR100748140B1 (en) | Structure for supporting thrust bearing for drive shaft supporter of variable displacement swash plate type compressor | |
| JP2007024000A (en) | Swash plate compressor | |
| CN114412777B (en) | Movable scroll, scroll compressor and air conditioner | |
| CN214036004U (en) | Compressor, air conditioner and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |