CN208503012U - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN208503012U CN208503012U CN201820804673.6U CN201820804673U CN208503012U CN 208503012 U CN208503012 U CN 208503012U CN 201820804673 U CN201820804673 U CN 201820804673U CN 208503012 U CN208503012 U CN 208503012U
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- China
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- reed
- wear
- bearing block
- screw compressor
- slot
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Abstract
The utility model discloses a kind of screw compressors, it is related to screw compressor manufacturing technology field, including the movable orbiting scroll being screwed on fixed scroll, the fixed scroll is abutted against by the end face of wear-resistant gasket and bearing block, the movable orbiting scroll is mutually slipped by the working face of wear-resistant gasket and the bearing block, two symmetrical radial grooves are equipped in the operative end surface, the bearing block is connected by the cross slip-ring moved back and forth in the radial groove and movable orbiting scroll movement, the hydrops slot with the connection of radial groove described in every is respectively equipped on the working face of the bearing block, each hydrops slot is equipped with the liquid release groove being connected to back pressure cavity.Compared with the prior art, the utility model can solve existing screw compressor and be also easy to produce the problem of liquid hammer causes cross slip-ring to damage.
Description
Technical field
The utility model relates to compressor manufacturing technical field, especially a kind of screw compressor.
Background technique
Currently, screw compressor on the market includes the discharge chamber formed by shell and fixed scroll, discharge chamber is by setting
It is connected in the oil inlet passage of fixed scroll with the back pressure cavity being enclosed by movable orbiting scroll, wear-resistant gasket, bearing block, back pressure cavity passes through one
Drainback passage is connected to suction chamber；When compressor is run, movable orbiting scroll makes matched cross sliding under the drive of eccentric shaft
The long key of a pair of ring moves reciprocatingly in the sliding slot of bearing block；And movable orbiting scroll and fixed scroll are screwed on and compress the fluid of suction chamber
It drains into and forms high-pressure fluid in discharge chamber；Partial high pressure fluid in discharge chamber can enter in back pressure cavity by oil inlet passage to be become
Lubricating oil, and after the back pressure in back pressure cavity is established, a large amount of lubricating oil can be stored in the sliding slot of bearing block, cross slip-ring is in cunning
Translation, does not have lubricating oil leakage path such as, being also easy to produce liquid hammer causes cross slip-ring to be easily damaged in slot.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of screw compressors, to solve existing scroll compression
Machine is also easy to produce the problem of liquid hammer causes cross slip-ring to damage.
The utility model technical scheme applied to solve the technical problem are as follows: this screw compressor includes revolving with fixed scroll
The movable orbiting scroll connect, the fixed scroll are abutted against by the end face of wear-resistant gasket and bearing block, and the movable orbiting scroll passes through wear-resistant gasket
It is mutually slipped with the working face of the bearing block, two symmetrical radial grooves, the bearing block is equipped in the operative end surface
It is connected by the cross slip-ring moved back and forth in the radial groove and movable orbiting scroll movement, in the work of the bearing block
The hydrops slot with the connection of radial groove described in every is respectively equipped on face, each hydrops slot is equipped with to be connected to back pressure cavity
Liquid release groove.
In above-mentioned screw compressor technical solution, more specific technical solution may also is that the hydrops slot for circumferential arc
The junction of shape slot, the circumferentially arcuate slot and the liquid release groove is located at one end of the circumferentially arcuate slot.
It is further: to be additionally provided with the oil-recovery tank being connected to suction chamber on the working face of the bearing block and be respectively communicated with oil inlet
The oil-feed tank of channel and the back pressure cavity.
It is further: the reed that the wear-resistant gasket includes wear-resisting pad body and is connected on the wear-resisting pad body, institute
Reed lid is stated to close between the exit of the oil-recovery tank, the two sides of the reed and the wear-resisting pad body equipped with slot segmentation；
The fixed scroll is equipped with reed at the position for placing the reed and bounces notch.
Further: the reed is arranged on the wear-resisting pad body, and the width of the reed is greater than the oil-recovery tank
Width；The distance of slot bottom of the top of the reed to the slot segmentation is 1 times~5 times of width of the oil-recovery tank.
Further: the thickness of the wear-resisting pad body and the reed is 0.2 millimeter~0.8 millimeter.
Further: the height that the reed bounces notch is 0.2 millimeter~2 millimeters.
By adopting the above-described technical solution, the utility model have the following beneficial effects: 1 compared with prior art, by
In laterally offering the liquid release groove being connected to back pressure cavity in every hydrops slot, can make in two radial grooves excessive
Lubricating oil flows away rapidly, eliminates and is also easy to produce the hidden danger that liquid hammer causes cross slip-ring to be easily damaged；Simultaneously when lubricating oil pressure is high
When, thrust is greater than reed elastic force, and reed then flicks to fixed scroll side, plays the role of establishing back pressure and safeguard protection；2 and
Reed is connected on wear-resistant gasket, eliminates installation position influence；Reed is opened flexibly, to eliminate because compressor high speed is transported
Back-pressure sealing device vulnerable hidden danger when turning, improves screw compressor reliability of operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the partial enlarged view at the I of Fig. 1.
Fig. 3 is the cross-sectional view at the A-A of Fig. 1.
Fig. 4 is the cross-sectional view at the B-B of Fig. 1.
Fig. 5 is the structural schematic diagram of the cross slip-ring of the utility model embodiment.
Fig. 6 is the structural schematic diagram of the working face of the bearing block of the utility model embodiment.
Fig. 7 is the schematic diagram of the utility model embodiment cross slip-ring and bearing block movement connection.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail:
Embodiment 1:
Screw compressor as shown in Figure 1 includes the movable orbiting scroll 7 being screwed on fixed scroll 5, and fixed scroll 5 passes through wear-resistant gasket 8
It is abutted against with the working face of bearing block 10, movable orbiting scroll 7 is mutually slipped by wear-resistant gasket 8 and the working face of bearing block 10, in the work
Make end face equipped with two symmetrical radial grooves 103, bearing block 10 passes through reciprocal in this two radial grooves 103 respectively
The long key 41 of a pair of the cross slip-ring 4 of movement is connected with the movement of movable orbiting scroll 7, as shown in figure 5 and figure 7；In the working face of bearing block
On be respectively equipped with hydrops slot 104 with the connection of every radial groove, two hydrops slots 104 are circumferentially arcuate slot, Mei Geji
Liquid bath 104 is equipped with the liquid release groove being connected to back pressure cavity 9, wherein a liquid release groove 105 and hydrops slot 104
Junction is located at one end of hydrops slot 104, and the other end of liquid release groove 105 is connected to back pressure cavity 9, in the work of bearing block 10
It is additionally provided with the oil-recovery tank 102 being connected to back pressure cavity 9 on face and is respectively communicated with the oil-feed tank 101 of oil inlet passage 50 and back pressure cavity 9；Separately
One end of one hydrops slot is connected to one end of another liquid release groove 1011, the other end of liquid release groove 1011 by into
Oil groove 101 is connected to back pressure cavity 9；The end of one end end of oil-feed tank 101 and the oilhole 801 of wear-resistant gasket 8 and finishing bathtray 51
51a is corresponding；The width of the oil-recovery tank 102 of the present embodiment is 2 millimeters, and it is logical that oil-recovery tank 102 and wear-resistant gasket 8 are enclosed oil return
Road；Wherein, the discharge chamber 6 that shell and fixed scroll 5 are formed, discharge chamber 6 is by being located at the oil inlet passage 50 of fixed scroll 5 and by moving whirlpool
The back pressure cavity 9 that disk 7, wear-resistant gasket 8, bearing block 10 are enclosed is connected to, and back pressure cavity 9 passes through a drainback passage and suction chamber 1
Connection.When compressor is run, movable orbiting scroll 7 and fixed scroll 5 are screwed on to compress to drain into the fluid of suction chamber 1 and form height in discharge chamber 6
Press fluid；Partial high pressure fluid in discharge chamber 6 can enter in back pressure cavity 9 by oil inlet passage 50 to fixed scroll 5 and balance weight
The bearing 2 of connection and the bearing 11 that eccentric shaft 3 is mounted on bearing block 10 is lubricated；Wear-resistant gasket 8 includes wear-resisting advance capital for
Body and the reed 81 being connected on wear-resisting pad body, the wear-resisting pad body of the present embodiment and the thickness of reed 81 are 0.2 millimeter；
The lid of reed 81 closes on the exit 102a of oil-recovery tank 102, and reed 81 is radially connected on wear-resisting pad body, and the two of reed 81
Slot segmentation is equipped between side and wear-resisting pad body；The width n of the reed 81 of the present embodiment is 4 millimeters, and 4 millimeters of reed width is big
In the width of oil-recovery tank 102；The distance m of the top of reed to slot segmentation slot bottom is 1 times i.e. 2 millimeters of the width of oil-recovery tank；It is quiet
Whirlpool disk 5 is equipped with reed at the position for placing reed 81 and bounces notch 52, and the height s that the reed of the present embodiment bounces notch 52 is
0.2 millimeter, as shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 6.
Embodiment 2:
The thickness of wear-resisting pad body and reed 81 is 0.8 millimeter；The width of oil-recovery tank 102 is 2 millimeters, the width of reed 81
Spending n is 8 millimeters, and 8 millimeters of reed width is greater than the width of oil-recovery tank 102；The distance m of the top of reed to slot segmentation slot bottom is
5 times of the width of oil-recovery tank are 10 millimeters；The height s that reed bounces notch 52 is 2 millimeters；Other features are same as Example 1.
When work, due to, to liquid release groove is offered, making in two radial grooves 103 every 104 side of hydrops slot
Interior excessive lubricating oil flows away rapidly, eliminates and is also easy to produce the hidden danger that liquid hammer causes cross slip-ring to be easily damaged；Simultaneously when lubrication
When oil pressure is high, thrust is greater than 81 elastic force of reed, and reed 91 then flicks to 5 side of fixed scroll, plays and establish back pressure and safety
Protective effect.
Claims (7)
1. a kind of screw compressor, including the movable orbiting scroll being screwed on fixed scroll, the fixed scroll passes through wear-resistant gasket and bearing block
End face abut against, the movable orbiting scroll is mutually slipped by the working face of wear-resistant gasket and the bearing block, in the operative end surface
Equipped with two symmetrical radial grooves, the bearing block passes through the cross slip-ring moved back and forth in the radial groove and institute
Movable orbiting scroll movement connection is stated, the hydrops with the connection of radial groove described in every is respectively equipped on the working face of the bearing block
Slot, it is characterised in that: each hydrops slot is equipped with the liquid release groove being connected to back pressure cavity.
2. screw compressor according to claim 1, it is characterised in that: the hydrops slot is circumferentially arcuate slot, the week
One end of the circumferentially arcuate slot is located to the junction of arc groove and the liquid release groove.
3. screw compressor according to claim 1 or 2, it is characterised in that: be additionally provided on the working face of the bearing block
The oil-recovery tank that is connected to suction chamber and the oil-feed tank for being respectively communicated with oil inlet passage and the back pressure cavity.
4. screw compressor according to claim 3, it is characterised in that: the wear-resistant gasket includes wear-resisting pad body and company
Connect the reed on the wear-resisting pad body, the reed lid closes in the exit of the oil-recovery tank, the two sides of the reed with
Slot segmentation is equipped between the wear-resisting pad body；The fixed scroll bounces at the position for placing the reed equipped with reed scarce
Mouthful.
5. screw compressor according to claim 4, it is characterised in that: the reed is arranged in the wear-resisting pad body
On, the width of the reed is greater than the width of the oil-recovery tank；The top of the reed to the slot segmentation slot bottom distance
It is 1 times~5 times of the width of the oil-recovery tank.
6. screw compressor according to claim 5, it is characterised in that: the thickness of the wear-resisting pad body and the reed
It is 0.2 millimeter~0.8 millimeter.
7. screw compressor according to claim 6, it is characterised in that: the height that the reed bounces notch is 0.2 milli
Rice~2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804673.6U CN208503012U (en) | 2018-05-28 | 2018-05-28 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804673.6U CN208503012U (en) | 2018-05-28 | 2018-05-28 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503012U true CN208503012U (en) | 2019-02-15 |
Family
ID=65293849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820804673.6U Active CN208503012U (en) | 2018-05-28 | 2018-05-28 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228272A1 (en) * | 2019-05-10 | 2020-11-19 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
-
2018
- 2018-05-28 CN CN201820804673.6U patent/CN208503012U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228272A1 (en) * | 2019-05-10 | 2020-11-19 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
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