CN105927726B - The disk like spider piece and its moulding process of single screw compressor - Google Patents
The disk like spider piece and its moulding process of single screw compressor Download PDFInfo
- Publication number
- CN105927726B CN105927726B CN201610463210.3A CN201610463210A CN105927726B CN 105927726 B CN105927726 B CN 105927726B CN 201610463210 A CN201610463210 A CN 201610463210A CN 105927726 B CN105927726 B CN 105927726B
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- Prior art keywords
- spider piece
- wheel
- star
- piece
- spider
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
Abstract
The present invention discloses the disk like spider piece and its moulding process of a kind of single screw compressor, and the wheel that the spider piece includes center is slapped, and wheel palm centre is equipped with axis hole, and wheel palm outside is with several star-wheel teeth；The disk like spider piece of single screw compressor is placed in a flat surface in a free state, the outer rounded ends decurvation of all star-wheel teeth；All or part of star-wheel tooth tooth ends contact platform plane.The present invention is handled by advance thermal finalization, so that the gear teeth on spider piece are bent in a free state to star wheel frame in-plane, when near the inner circle that spider piece is compressed with pressing plate, the tooth of spider piece is made to be close to the plane of star wheel frame, just there is reclinate internal stress inside star-wheel tooth, it is this to be bent the phenomenon that internal stress prevent spider piece freely upwardly-deformed, and not generate upward free warpage.To reduce the preset clearance between spider piece and the star-wheel window division surface of cylinder, the dielectric leakage amount of compressor is effectively reduced.
Description
Technical field
The present invention relates to petrochemical industry, refrigeration air-conditioner and air force Compressor Technology field, more particularly to a kind of list
Screw compressor disk like spider piece and its moulding process.
Background technology
Existing single screw compressor spider piece is all wheel flute profile disk on domestic and international market, and spider piece is in a free state
Upper and lower end face is straight.For ease of description, it is spider piece lower surface to define the surface that spider piece is contacted with star wheel frame first,
And spider piece is upper surface with the matched surface of cylinder window division surface.Since spider piece thickness is thin, the length and diameter of tooth
It is relatively large, after straight spider piece is packed into compressor operating for a period of time under this free state, all easily occur different degrees of
Buckling deformation.Some teeth have the tendency that surface direction deformation downward, then are limited, do not deform by star wheel frame plane, have
A little teeth directional upper surface directions warpages, will cause with the collision of casing window and damage.
The reason is that the clearance requirement between star-wheel window on the spider piece upper surface of single screw compressor and cylinder to the greatest extent may be used
Can it is small, opposite at a high speed between the two faces to slide, gap generally requirement within 0.03~0.07mm, otherwise can cause height
Calm the anger leakage from body to star-wheel room it is excessive.If the upwardly-deformed several millimeters of spider piece tooth, institute's preset clearance should be star-wheel tooth
Thus deflection causes gap excessive and its leakage of sealing medium increases plus the reserved gap of requirement.If preset clearance
It is too small, it then can directly be impinged upon on the window division surface of cylinder when star-wheel tooth spiral turns, spider piece is caused to abrade or sever, engineering
In have many compressors spider piece damage in this way.
Invention content
The purpose of the present invention is to provide the disk like spider piece and its moulding process of a kind of single screw compressor, in solution
State technical problem.
To achieve these goals, the present invention adopts the following technical scheme that：
The disk like spider piece of single screw compressor, the wheel palm including center, wheel palm centre are equipped with axis hole, wheel palm outside
With several star-wheel teeth；The disk like spider piece of single screw compressor is placed in a flat surface in a free state, institute
There is the outer rounded ends decurvation of star-wheel tooth；All or part of star-wheel tooth tooth ends contact platform plane.
Further, part star-wheel tooth tooth ends contact platform plane, has between another part tooth top position and flat surface
Gap less than A, A≤0.00015D, D represent spider piece diameter dimension.
Further, the gap for taking turns metacarpus position and flat surface is B, and wherein 0.0003D≤B≤0.001D, D represent spider piece
Diameter dimension.
Further, at different location spider piece difference in thickness in 0.01mm.
The moulding process of the disk like spider piece of single screw compressor, includes the following steps：
(1) working flat plate shape spider piece；
(2) tabular spider piece is installed in heat treatment tooling；The heat treatment tooling includes chassis, thin slice gasket ring),
Spider piece, pressing plate and upper pressure cover；The center of top position on chassis is set there are one the positioning convex platform that thickness is less than spider piece thickness, fixed
The position outer diameter of boss and the axis hole of spider piece are slidably matched；Center chassis has through-hole；Thin slice gasket ring outer diameter is less than or equal to star
The diameter of tooth root is taken turns, the outer diameter of pressing plate is equal with the diameter of thin slice gasket ring, and upper pressure cover is a structure for being buckled to cup-shaped, outside rim of a cup
Diameter is equal to or slightly less than spider piece outer diameter；During installation, fastening bolt is connected in the interstitial hole on chassis, one end is stretched out,
Thin slice gasket ring is placed above in chassis, by the positioning convex platform on chassis to the Internal hole positioning of thin slice gasket ring, then puts spider piece
It puts in the center of thin slice gasket ring, also relies on positioning convex platform positioning, then pressing plate is placed on above spider piece, pass through panel nut
Pressing plate, spider piece and chassis are connected and fastened, the tooth tip position of spider piece is next pressed against with pressure cover outer rim again, is covered with pressure
The tooth tip position that nut makes upper pressure cover compress spider piece by running through bolt；
(3) heat treatment tooling and the spider piece being installed in heat treatment tooling are heat-treated together, obtain single screw rod
The disk like spider piece of compressor.
Further, there are the gaps of 0.01~0.02mm between spider piece tooth top and the transverse plane of chassis outer rim.
Further, the thickness of thin slice gasket ring is 0.0005~0.001 times of spider piece diameter.
Further, the overall thickness of spider piece and thin slice gasket ring is more than the height of positioning convex platform.
Further, the top on chassis, which is located on the outside of positioning convex platform, forms an annular plane；The annular plane
Flatness is not less than 7 class precisions.
Further, heat treatment concrete technology is in step (3)：Tooling equipped with spider piece is placed into heat-treatment furnace
It is interior, it is capable of the minimum temperature of flow according to material first, determines the temperature of thermal finalization processing：The temperature of thermal finalization processing is star-wheel
Sheet material is capable of minimum temperature~(star-wheel sheet stock is capable of+20 DEG C of the minimum temperature of flow) of flow, and processing time is 5 hours；
Spider piece becomes dish-shaped shape in a free state after thermal finalization processing.
Further, star-wheel sheet material is PEEK materials；Thermal finalization processing technique be：Room temperature is at the uniform velocity handled to thermal finalization
180~210 DEG C of temperature, the heating-up time be 3 hours；It keeps 180~210 DEG C of in-furnace temperature 5 hours, then cools down, during cooling
Between control at 4 hours, finally the tooling equipped with spider piece is taken out out of stove, then spider piece unloaded and can obtain dish dress star-wheel
Piece.
Relative to the prior art, the invention has the advantages that：
The present invention is handled by advance thermal finalization so that the gear teeth on spider piece are in a free state to star wheel frame plane side
To bending, when near the inner circle for compressing spider piece with pressing plate, the tooth of spider piece is made to be close to the plane of star wheel frame, inside star-wheel tooth
Just there is reclinate internal stress, this bending internal stress will prevent spider piece freely upwardly-deformed, and not generate and freely stick up upwards
The phenomenon that bent.To reduce the preset clearance between spider piece and the star-wheel window division surface of cylinder, Jie of compressor is effectively reduced
Matter leakage rate.
Description of the drawings
Fig. 1 is the vertical view of Fig. 1 (a) to be molded or cutting spider piece blank drawing, wherein Fig. 1 (b).
Fig. 2 is thermal finalization tool structure figure.
Fig. 3 is disk like spider piece figure, and wherein Fig. 3 (b) is the vertical view of Fig. 3 (a).
Specific embodiment
Shown in please referring to Fig.1 to Fig.3, a kind of moulding process of the disk like spider piece of single screw compressor of the present invention, including
Following steps：
(1) it is molded star-wheel blank or cuts spider piece blank as shown in Figure 1, being carried out to star-wheel blank in fine elimination
Stress is heat-treated or vibration processing；
(2) endoporus, outer circle and the upper and lower end face of spider piece are traditionally processed, and cuts out the left and right of roughing tooth
Side ensures that processed spider piece thickness in the defined size range finally processed, ensures each position of spider piece
Thickness difference no more than 3/1000ths, while ensure that the flatness of spider piece in its natural state is not more than GB/T1184-
7 grades of levels of tolerance grade as defined in 1996；
(3) the both sides mesh tooth face of star-wheel is processed；
(4) make one for heat treatment tooling, tooling by a chassis 3, fastening bolt 4, several thin slice gasket rings 5,
Pressing plate 7, nut 8, upper pressure cover 9 and pressure cover nut 10 are formed, as shown in Fig. 2, they are all by heat treatment well, it is ensured that good
Good shape stability.The outer diameter on chassis 3 is slightly larger than or the outer diameter equal to spider piece 6, and there are one height for the central part on chassis 3
Less than the positioning convex platform 11 of 6 thickness of spider piece, the endoporus of the outer diameter and spider piece 6 of positioning convex platform 11 is slidably matched, 3 center of chassis
There is through-hole, the flatness of the top annular plane 31 on chassis 3 is not less than 7 class precisions.5 outer diameter of thin slice gasket ring is straight in star-wheel tooth root
In the range of the 99%~100% of diameter, it is slightly less than or the diameter dimension equal to star-wheel tooth root, outer diameter and the thin slice gasket ring 5 of pressing plate 7
Diameter it is equal, it is upper pressure cover 9 be one back-off cup-shaped structure, rim of a cup outer diameter is in 99%~100% range of 6 outer diameter of spider piece
Interior, equal to or slightly less than 6 outer diameter of spider piece, the radial thickness of rim of a cup are not more than 10mm, and the depth of rim of a cup must can accommodate star-wheel
The parts general thickness such as piece, pressing plate, pressing plate nut.
(5) fastening bolt 4 is connected in the interstitial hole on chassis 3, one end is stretched out, and thin slice gasket ring is placed above on chassis 3
5, the thickness of thin slice gasket ring 5 is 0.0005~0.001 times of 6 diameter of spider piece, by the positioning convex platform 11 on chassis 3 to thin slice
Then spider piece 6 is placed on the center of thin slice gasket ring 5 by the Internal hole positioning of gasket ring 5, also rely on the boss 11 and position, then
Pressing plate 7 is placed on above spider piece 6, and pressing plate 7, spider piece 6 and chassis 3 are connected fastening by panel nut 8, next used again
9 outer rims of upper pressure cover press against the tooth tip position of spider piece 6, make upper 9 pressure of pressure cover by running through bolt with another pressure cover nut 10
The tooth tip position of tight spider piece 6, and keep between spider piece tooth top and the transverse plane of chassis outer rim that there are 0.01~0.02mm
Gap.Mounted spider piece and its tooling external member are placed on progress thermal finalization processing in heat-treatment furnace, thermal finalization processing
The minimum temperature that temperature is capable of flow according to a variety of materials determines：The temperature of thermal finalization processing is capable of flow for star-wheel sheet material
Minimum temperature~(star-wheel sheet material is capable of+20 DEG C of the minimum temperature of flow), processing time are 5 hours；Star after thermal finalization processing
Wheel piece becomes dish-shaped shape in a free state.Such as the holding temperature for thermal finalization processing PEEK material spider pieces is usually
180~210 DEG C.By the heating, heat preservation and cooling of appropriate time, taking-up can make spider piece become dish in a free state
Shape, as shown in figure 3, the heating-up time, generally at 3 hours or so, soaking time is 5 hours, and temperature fall time is 4 hours.
The material of spider piece can be that metal can also be plastics, for traditional single screw rod spider piece, for disc-shaped and have
Upper and lower two flat surfaces, thickness are generally 6~10mm, and there is axis hole in the centre of disk, around have wheel slap, wheel the palm outside with
Several star-wheel teeth.And the present invention by traditionally shaped spider piece carry out thermal finalization, be processed into dish-shaped spider piece such as Fig. 3 (a) and
Shown in Fig. 3 (b), become an intermediate position and arch upward, surrounding tooth is all by the back-off plate shape of uniform sizes decurvation.This
The disk like spider piece of the prepared single screw compressor of invention, thickness is all identical in each position.Star at different location
The permission difference of piece thickness is taken turns in 0.01mm, spider piece is placed in a flat surface in a free state, spider piece
The outer rounded ends decurvation of tooth, part tooth ends can contact platform plane, can between another part tooth top position and flat surface
There can be the gap less than A, the breast wheel metacarpus position of spider piece and the gap of flat surface are in the range of B.Wherein A≤0.00015D, B
It is worth and is：0.0003D≤B≤0.001D, D represent spider piece diameter dimension.
Claims (10)
1. the moulding process of the disk like spider piece of single screw compressor, which is characterized in that include the following steps：
(1) working flat plate shape spider piece；
(2) tabular spider piece is installed in heat treatment tooling；The heat treatment tooling includes chassis (3), thin slice gasket ring
(5), spider piece (6), pressing plate (7) and upper pressure cover (9)；The center of top position on chassis is set there are one thickness less than spider piece thickness
Positioning convex platform (11), the outer diameter of positioning convex platform and the axis hole of spider piece are slidably matched；Center chassis has through-hole；Outside thin slice gasket ring
Diameter is less than or equal to the diameter of star-wheel tooth root, and the outer diameter of pressing plate is equal with the diameter of thin slice gasket ring, and upper pressure cover is a back-off
The structure of cup-shaped, rim of a cup outer diameter are equal to or slightly less than spider piece outer diameter；During installation, fastening bolt (4) is connected to chassis
In interstitial hole, one end is stretched out, and thin slice gasket ring is placed above on chassis, by the positioning convex platform on chassis to the endoporus of thin slice gasket ring
Then spider piece is placed on the center of thin slice gasket ring by positioning, also rely on positioning convex platform positioning, then pressing plate is placed on star-wheel
Above piece, pressing plate, spider piece and chassis are connected by panel nut (8) and fastened, next press against star with pressure cover outer rim again
The tooth tip position of piece is taken turns, the tooth top end for upper pressure cover (9) being made to compress spider piece (6) by running through bolt with pressure cover nut (10)
Position；
(3) heat treatment tooling and the spider piece being installed in heat treatment tooling are heat-treated together, obtain single screw rod compression
The disk like spider piece of machine.
2. the moulding process of the disk like spider piece of single screw compressor according to claim 1, which is characterized in that spider piece
There are the gaps of 0.01~0.02mm between tooth top and the transverse plane of chassis outer rim.
3. the moulding process of the disk like spider piece of single screw compressor according to claim 1, which is characterized in that thin slice pad
The thickness of ring is 0.0005~0.001 times of spider piece diameter.
4. the moulding process of the disk like spider piece of single screw compressor according to claim 1, which is characterized in that spider piece
It is more than the height of positioning convex platform with the overall thickness of thin slice gasket ring.
5. the moulding process of the disk like spider piece of single screw compressor according to claim 1, which is characterized in that chassis
(3) top, which is located on the outside of positioning convex platform, forms an annular plane (31)；The flatness of the annular plane (31) is not low
In 7 class precisions.
6. the moulding process of the disk like spider piece of single screw compressor according to claim 1, which is characterized in that step
(3) heat treatment concrete technology is in：Tooling equipped with spider piece is placed into heat-treatment furnace, it first being capable of flow according to material
Minimum temperature, determine thermal finalization processing temperature：The temperature of thermal finalization processing is capable of the lowest temperature of flow for star-wheel sheet material
Degree~(star-wheel sheet material is capable of+20 DEG C of the minimum temperature of flow), processing time are 5 hours；Spider piece exists after thermal finalization processing
Become dish-shaped shape under free state.
7. the moulding process of the disk like spider piece of single screw compressor according to claim 1, which is characterized in that preparation
The disk like spider piece of single screw compressor, the wheel palm including center, wheel palm centre are equipped with axis hole, and wheel palm outside is with several
A star-wheel tooth；The disk like spider piece of single screw compressor is placed in a flat surface in a free state, all star-wheel teeth
Outer rounded ends decurvation；All or part of star-wheel tooth tooth ends contact platform plane.
8. the moulding process of the disk like spider piece of single screw compressor according to claim 7, which is characterized in that part star
Gear teeth tooth ends contact platform plane, there is the gap less than A between another part tooth top position and flat surface, A≤0.00015D,
D represents spider piece diameter dimension.
9. the moulding process of the disk like spider piece of single screw compressor according to claim 7, which is characterized in that wheel metacarpus
Position and the gap of flat surface are B, and wherein 0.0003D≤B≤0.001D, D represent spider piece diameter dimension.
10. the moulding process of the disk like spider piece of single screw compressor according to claim 7, which is characterized in that different
Spider piece difference in thickness is in 0.01mm at position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463210.3A CN105927726B (en) | 2016-06-22 | 2016-06-22 | The disk like spider piece and its moulding process of single screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463210.3A CN105927726B (en) | 2016-06-22 | 2016-06-22 | The disk like spider piece and its moulding process of single screw compressor |
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| Publication Number | Publication Date |
|---|---|
| CN105927726A CN105927726A (en) | 2016-09-07 |
| CN105927726B true CN105927726B (en) | 2018-06-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106528974B (en) * | 2016-10-25 | 2019-04-12 | 西安交通大学 | Star-wheel tooth angle and screw slot base angle type face coupling design method |
| CN106738663A (en) * | 2017-02-27 | 2017-05-31 | 奥夫尔科精铸机械（昆山）有限公司 | The shaped device and forming method of a kind of spider piece |
| CN106949224B (en) * | 2017-05-05 | 2019-12-17 | 德耐尔节能科技（上海）股份有限公司 | Water-lubricating oil-free main engine star wheel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660526A (en) * | 2009-09-16 | 2010-03-03 | 北京力通高科技发展有限公司 | Flexible meshing pair of single screw compressor |
| CN102102670A (en) * | 2010-09-13 | 2011-06-22 | 李锦上 | Three-plane concurrent construction method and star wheel of single-screw compressor constructed by same |
| CN202301038U (en) * | 2011-08-20 | 2012-07-04 | 赖建福 | Star wheel and star wheel sheet thereof |
| CN102922015A (en) * | 2012-10-31 | 2013-02-13 | 深圳振华亚普精密机械有限公司 | Star wheel piece processing device and processing method thereof |
| CN202789528U (en) * | 2012-03-07 | 2013-03-13 | 温州市威格尔科技有限公司 | Star wheel sheet |
-
2016
- 2016-06-22 CN CN201610463210.3A patent/CN105927726B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660526A (en) * | 2009-09-16 | 2010-03-03 | 北京力通高科技发展有限公司 | Flexible meshing pair of single screw compressor |
| CN102102670A (en) * | 2010-09-13 | 2011-06-22 | 李锦上 | Three-plane concurrent construction method and star wheel of single-screw compressor constructed by same |
| CN202301038U (en) * | 2011-08-20 | 2012-07-04 | 赖建福 | Star wheel and star wheel sheet thereof |
| CN202789528U (en) * | 2012-03-07 | 2013-03-13 | 温州市威格尔科技有限公司 | Star wheel sheet |
| CN102922015A (en) * | 2012-10-31 | 2013-02-13 | 深圳振华亚普精密机械有限公司 | Star wheel piece processing device and processing method thereof |
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| CN105927726A (en) | 2016-09-07 |
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