CN103967529A - Slip sheet expander - Google Patents
Slip sheet expander Download PDFInfo
- Publication number
- CN103967529A CN103967529A CN201410192171.9A CN201410192171A CN103967529A CN 103967529 A CN103967529 A CN 103967529A CN 201410192171 A CN201410192171 A CN 201410192171A CN 103967529 A CN103967529 A CN 103967529A
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- rotor
- stator
- positioning groove
- end cover
- slide plate
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Abstract
The invention discloses a slip sheet expander. The slip sheet expander comprises a stator comprising an air cylinder and a rotor which is eccentrically mounted inside the air cylinder of the stator, wherein an exhaust end cover is arranged on one side of the stator, and an output shaft end cover is mounted on the other side of the stator; a bearing positioning groove is formed in the inner side of the exhaust end cover; a bearing sleeve is mounted inside the bearing positioning groove; one end of a rotor shaft movably sleeves the bearing sleeve, and the other end of the rotor shaft extends out of the output shaft end cover so as to output power; slip sheets sliding in the radial direction are mounted inside rotor grooves; a fluid through hole is formed in the bearing positioning groove of the exhaust end cover; a fluid passage is formed in a rotor shaft end face positioned inside the bearing positioning groove in the axial direction; one or more branch passages are formed in the bottom of each rotor groove in the radial direction; the branch passages are communicated with the fluid passage. The slip sheet expander has the advantages that the slip sheets are controlled by a high pressure fluid under the condition that the rotor is free of initial speed and can automatically stretch out of the rotor grooves at the right moment, so that normal startup of the slip sheet expander is realized, the slip sheet expander is reliable to use, and miniaturization is realized.
Description
Technical field
The invention belongs to a kind of mechanical device that utilizes flowing medium to realize transformation of energy, be specifically related to a kind of slipping sheet expander.
Background technique
Decompressor is the contained pressure energy of pressurized gas, liquid or gas-liquid mixture to be converted into the device of mechanical energy.
The structure of slipping sheet expander as shown in Figure 1, it has the stator 1 that comprises cylinder, and rotor 2 is installed in stator cylinder, the axle center of the axis deviation stator cylinder of rotor 2, on rotor 2 excircles, have a plurality of axial rotor 3, in rotor 3, be placed with the slide plate 4 radially sliding.Due to rotor eccentric configuration in cylinder, the spatial volume that cylinder inner wall and rotor outer circle surface form is asymmetric, and the spatial volume that wherein has a segmental arc is narrow and another segmental arc spatial volume is roomy relatively.Slide plate stretches out and is close to cylinder inner wall in rotor, asymmetric spatial separation is become to a plurality of cells, the cell volume that is positioned at narrow space is less, and the volume of cell that is positioned at wide space is larger, high-pressure medium enters from little volume position, because impelling the direction that rotor increases to volume, the expansion of tightness and high-pressure medium rotates, at volume maximum position, give off medium, when constantly inputting high-pressure medium and giving off medium from volume maximum position from little volume position, just can make not stall of rotor moving, the residing position of slide plate is in continuous variation, the volume of each cell is also in continuous change, the pressure of cell inner fluid changes along with volume-variation.Like this, slipping sheet expander passes into high-pressure liquid and drives rotor, realizes again hydrodynamic pressure simultaneously and reduces.The every rotation of rotor one week, each slide plate slides up and down once in rotor.
Slipping sheet expander is compared with slide vane compressor, the function of slide plate and slip form are all identical, but function is different, enter outlet passageway just in time contrary, compressor is to allow the flowing medium that enters externally under the mechanical energy effect of motor, the large volume chamber that allows medium form from slide plate is changed to little volume chamber, realizes the compression to medium.And decompressor is to allow elevated pressures medium enter from the little volume chamber of slide plate formation, rely on the tightness of chamber and the expansibility of high-pressure medium, medium rotor driven when large volume chamber is discharged is moved and form mechanical energy.Hence one can see that, and the two problem facing in when starting is completely different: during slide vane compressor starting, rotor is subject to external force to drive rotation, and slide plate is thrown away by centrifugal action from groove, and by cylinder interior space, every being divided into cell, slide vane compressor can normal starting; But during slipping sheet expander starting, rotor does not have initial speed, does not exist centrifugal force, slide plate can not stretch out rotor and cause cylinder interior space to communicate on slide plate, and decompressor can not normal starting.For slipping sheet expander can be started, Chinese patent literature CN201100234Y discloses " a kind of slipping sheet expander " on August 13rd, 2008, it is provided with spring in the bottom of slide plate, rely on spring thrust that slide plate is stretched out, slide plate and cylinder inner wall laminating, thereby separate cylinder interior space, become some cells, realized slipping sheet expander normal starting.But there is following problem in this slipping sheet expander:
1, the rotor speed due to slipping sheet expander is 1500-3000r/min, therefore the stretching frequency of spring is similarly 1500-3000 beat/min, conventionally the injury gained in sports that cannot bear such high speed working life of spring, spring very easily lost efficacy or ruptured, and needed the frequent spring of changing.
2, spring is in slide plate bottom because high frequency rubs for a long time and produces high temperature rapidly, and the Young's modulus of all springs all changes, and causes slide plate two ends height unbalanced, thereby damages slide plate, chute, even pulls cylinder body.
3, rotor is when high-speed motion, due to the effect of centrifugal force, slide plate and cylinder body are original just to be existed and rubs and lose useful work, after mounting spring sheet or spring, because spring has pretightening force, slide plate friction power loss is further increased, reduced the mechanical output of slipping sheet expander output.
4, because rotor spring self when moving has vibration, thereby slide plate is ceaselessly beated in motion state, reduced the efficiency of slipping sheet expander.
In addition, this patent also exists the required space of mounting spring in rotor to increase, be difficult to guarantee bubble-tight problem, and spring spring departs from guiding pivot pin and produces stuck problem of slide plate etc.
Chinese patent literature CN101871366A discloses " a kind of sliding vane type expander of pressure-drawing sliding vane groove bottom " on October 27th, 2010, it offers air inlet impulse passage on cylinder and left end cap, from sliding vane type expander suction port shunting pressurized gas, on left end cap, radially offer the impulse communicating passage of, axially offer a bottom land impulse passage again, and scribe end face groove at left end cap madial wall, end face groove extends along decompressor sense of rotation, and end face groove contacts with the rotor space of slide plate bottom.This design concept is: the pressurized gas of suction port are imported to space, rotor bottom from air inlet impulse passage, impulse communicating passage, bottom land impulse passage and end face groove, when the slide plate of rotor rotates in the region that end face groove extends time, under the effect of pressurized gas, slide plate is stretched out with cylinder inner wall and contact, to solve the sealing problem between slide plate top and cylinder inner wall.Because this structure is that space, bottom passes into gas from end cap madial wall to rotor, certainly exist following problem:
1, one side is because of slide plate near suction port, and slide plate is pushed back in rotor, and space, rotor bottom is very little, is no more than 3mm; On the other hand again because rotor high-speed rotation, rotating speed is generally 1500-3000r/min, rotation 25-50 week per second, space, rotor bottom is short through the time compole of end face groove, pressurized gas can not pass into space, rotor bottom, this structure cannot be utilized pressurized gas jack-up slide plate, so the technological scheme that this patent documentation is recorded can not solve the technical problem proposing in specification;
2, due to left end cap madial wall, to scribe end face groove be a little segmental arc, when as motionless in rotor, pass into pressurized gas, the most slide plates bottom that does not rest on end face groove does not have the active force of pressurized gas, slide plate can not skid off from rotor, so it can not realize the starting of sliding vane type expander under initially not turning.
Summary of the invention
For a starting difficult problem for existing slipping sheet expander, technical problem to be solved by this invention is just to provide a kind of slipping sheet expander, and it is not in the situation that rotor has initial speed, all slide plate can stretch out rotor, realize slipping sheet expander starting, and use reliably, can realize miniaturization.
Technical problem to be solved by this invention is to realize by such technological scheme, it comprises the stator that contains cylinder and the rotor that bias is installed in stator cylinder, one side of stator is equipped with exhaust end cover, stator opposite side is equipped with output shaft end cap, exhaust end cover inner side has bearing positioning groove, in bearing positioning groove, bearing housing is installed, rotor shaft one end movable set is on bearing housing, the rotor shaft the other end stretches out output shaft end cap with outputting power, the slide plate radially sliding is housed in rotor, the bearing positioning groove place of exhaust end cover has fluid through-hole, the rotor shaft end face that is positioned at bearing positioning groove has a fluid passage vertically, each rotor bottom radially has at least 1 branched bottom, branched bottom is communicated with fluid passage.
Because the bearing positioning groove place of exhaust end cover has fluid through-hole, the high-pressure liquid that can have energy from the outside introducing of slipping sheet expander enters in bearing positioning groove, bearing positioning groove is by bearing housing and rotor shaft sealing, high-pressure liquid enters each branched bottom along the fluid passage of rotor shaft, accumulate in the gap that slide plate bottom surface and rotor surround, between slide plate and rotor, between rotor and both sides side cover, all there is oil seal, high-pressure liquid can overflow from gap, the slide plate bottom surface of fluid pressure action in rotor, promote whole slide plates protruding.Like this, slide plate stretches out and controlled by the extraneous hydrodynamic pressure of introducing, and in the situation that rotor does not have initial speed, slide plate is controlled by high-pressure liquid, and energy is auto-extending rotor in good time, has realized the normal starting of slipping sheet expander.
In addition, the present invention utilizes hydrodynamic pressure that slide plate is ejected from rotor, and the fault of having avoided utilizing spring thrust to eject spring failure that slide plate causes causing, the slide plate that elastic modulus change causes damage, the spring volume that installing space causes in rotor increases and the stuck problem of slide plate.The present invention uses high-pressure liquid to control slide plate, can not bring new fault, has improved the reliability of slipping sheet expander, and can realize miniaturization.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows:
Fig. 1 is the slipping sheet expander structural representation of background technique;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the left view (partial sectional view) of Fig. 2.
In figure: 1. stator; 2. rotor; 21. fluid passages; 22. branched bottoms; 3. rotor; 4. slide plate; 5. exhaust end cover; 6. output shaft end cap; 7. bearing positioning groove; 8. bearing housing; 9. fluid through-hole; 10. pipe joint.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figures 2 and 3, the present invention includes the stator 1 that contains cylinder and the rotor 2 that bias is installed in stator cylinder, one side of stator 1 is equipped with exhaust end cover 5, stator 1 opposite side is equipped with output shaft end cap 6, exhaust end cover 5 inner sides have bearing positioning groove 7, bearing housing 8 is installed in bearing positioning groove 7, rotor shaft one end movable set is on bearing housing 8, the rotor shaft the other end stretches out output shaft end cap 6 with outputting power, the slide plate 4 radially sliding is housed in rotor 3, bearing positioning groove 7 places of exhaust end cover 5 have fluid through-hole 9, the rotor shaft end face that is positioned at bearing positioning groove 7 has a fluid passage 21 vertically, each rotor 3 bottom radially has at least 1 branched bottom 22, branched bottom 22 is communicated with fluid passage 21.
In the present embodiment, each rotor 3 bottom radially has 2 branched bottoms 22, and branched bottom 22 is communicated with fluid passage 21.Described fluid comprises gas, liquid or gas-liquid mixture.
Because bearing positioning groove 7 places of exhaust end cover 5 have fluid through-hole 9, can enter in bearing positioning groove 7 from the outside high-pressure liquid of introducing of slipping sheet expander, bearing positioning groove 7 is by bearing housing and rotor shaft sealing, high-pressure liquid enters each branched bottom 22 along the fluid passage 21 of rotor shaft, accumulate in the gap that slide plate 4 bottom surfaces and rotor 3 surround, slide plate 4 bottom surfaces of fluid pressure action in rotor 3, promote whole slide plates 4 protruding.
During slipping sheet expander starting, first pass into high-pressure liquid, at slide plate 4, stretch out after rotor 3, from the inlet of slipping sheet expander, pass into working voltage fluid again, make the rotor of slipping sheet expander, at rotor 3, turn to after suitable speed, slide plate 4 contacts with cylinder inner wall under centrifugal action, now can disconnect high-pressure fluid source.Like this, slipping sheet expander can keep normal operation.
For the ease of high-pressure liquid, introduce slipping sheet expander inner, in exhaust end cover 5 outsides, be positioned at fluid through-hole 9 places and be provided with pipe joint 10, in order to connect high-pressure fluid source.This high-pressure fluid source can be additional fluid source, can also be the workflow body source of slipping sheet expander.
Claims (2)
1. a slipping sheet expander, comprise the stator (1) that contains cylinder and the rotor (2) that bias is installed in stator cylinder, one side of stator (1) is equipped with exhaust end cover (5), stator (1) opposite side is equipped with output shaft end cap (6), exhaust end cover (5) inner side has bearing positioning groove (7), bearing housing (8) is installed in bearing positioning groove (7), rotor shaft one end movable set is on bearing housing (8), the rotor shaft the other end stretches out output shaft end cap (6) with outputting power, the slide plate (4) radially sliding is housed in rotor (3), it is characterized in that: the bearing positioning groove (7) of exhaust end cover (5) locates to have fluid through-hole (9), the rotor shaft end face that is positioned at bearing positioning groove (7) has a fluid passage (21) vertically, each rotor (3) bottom radially has at least 1 branched bottom (22), branched bottom (22) is communicated with fluid passage (21).
2. the pneumatic slipping sheet expander of slide plate according to claim 1, is characterized in that: in exhaust end cover (5) outside, be positioned at fluid through-hole (9) and locate to be provided with pipe joint (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192171.9A CN103967529A (en) | 2014-05-08 | 2014-05-08 | Slip sheet expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192171.9A CN103967529A (en) | 2014-05-08 | 2014-05-08 | Slip sheet expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103967529A true CN103967529A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410192171.9A Pending CN103967529A (en) | 2014-05-08 | 2014-05-08 | Slip sheet expander |
Country Status (1)
| Country | Link |
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| CN (1) | CN103967529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642380A (en) * | 2017-09-27 | 2018-01-30 | 重庆华稷新能源科技有限公司 | A kind of slipping sheet expander |
| CN108678810A (en) * | 2018-07-27 | 2018-10-19 | 江苏丰泰流体机械科技有限公司 | Plane rotation formula expanding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3760478A (en) * | 1971-10-04 | 1973-09-25 | Borg Warner | Method for assembling a rotary sliding vane compressor |
| JPS5596301A (en) * | 1979-01-18 | 1980-07-22 | Matsushita Electric Ind Co Ltd | Sliding vane type expansion machine |
| CN86103105A (en) * | 1986-05-13 | 1987-11-25 | 孙占根 | Blade type dual rotor internal combustion engine＜del/ 〉 |
| CN201100234Y (en) * | 2007-10-23 | 2008-08-13 | 西安交通大学 | A sliding slice swelling machine |
| CN101676550A (en) * | 2008-09-21 | 2010-03-24 | 周文珺 | Hydraulic action device |
| CN203867623U (en) * | 2014-05-08 | 2014-10-08 | 重庆大学 | Slip sheet expansion machine |
-
2014
- 2014-05-08 CN CN201410192171.9A patent/CN103967529A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3760478A (en) * | 1971-10-04 | 1973-09-25 | Borg Warner | Method for assembling a rotary sliding vane compressor |
| JPS5596301A (en) * | 1979-01-18 | 1980-07-22 | Matsushita Electric Ind Co Ltd | Sliding vane type expansion machine |
| CN86103105A (en) * | 1986-05-13 | 1987-11-25 | 孙占根 | Blade type dual rotor internal combustion engine＜del/ 〉 |
| CN201100234Y (en) * | 2007-10-23 | 2008-08-13 | 西安交通大学 | A sliding slice swelling machine |
| CN101676550A (en) * | 2008-09-21 | 2010-03-24 | 周文珺 | Hydraulic action device |
| CN203867623U (en) * | 2014-05-08 | 2014-10-08 | 重庆大学 | Slip sheet expansion machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642380A (en) * | 2017-09-27 | 2018-01-30 | 重庆华稷新能源科技有限公司 | A kind of slipping sheet expander |
| CN108678810A (en) * | 2018-07-27 | 2018-10-19 | 江苏丰泰流体机械科技有限公司 | Plane rotation formula expanding machine |
| CN108678810B (en) * | 2018-07-27 | 2023-09-19 | 江苏丰泰流体机械科技有限公司 | Plane rotary expander |
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Application publication date: 20140806 |