CN105937608A - Single-screw expansion machine - Google Patents

Single-screw expansion machine Download PDF

Info

Publication number
CN105937608A
CN105937608A CN201610404328.9A CN201610404328A CN105937608A CN 105937608 A CN105937608 A CN 105937608A CN 201610404328 A CN201610404328 A CN 201610404328A CN 105937608 A CN105937608 A CN 105937608A
Authority
CN
China
Prior art keywords
screw
star
wheel
gear teeth
tooth
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.)
Granted
Application number
CN201610404328.9A
Other languages
Chinese (zh)
Other versions
CN105937608B (en
Inventor
白纯波
王小兵
卢茂庚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Again Compressor Co Ltd
Original Assignee
Zhongshan Again Compressor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhongshan Again Compressor Co Ltd filed Critical Zhongshan Again Compressor Co Ltd
Priority to CN201610404328.9A priority Critical patent/CN105937608B/en
Publication of CN105937608A publication Critical patent/CN105937608A/en
Application granted granted Critical
Publication of CN105937608B publication Critical patent/CN105937608B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/101—Moineau-type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/107—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • 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
    • F16H55/08—Profiling
    • F16H55/0846—Intersecting-shaft arrangement of the toothed members
    • 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
    • F16H55/08—Profiling
    • F16H55/0873—Profiling for improving axial engagement, e.g. a chamfer at the end of the tooth flank
    • 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
    • F16H55/08—Profiling
    • F16H55/0886—Profiling with corrections along the width, e.g. flank width crowning for better load distribution
    • 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
    • F16H55/08—Profiling
    • F16H2055/0866—Profiles for improving radial engagement of gears, e.g. chamfers on the tips of the teeth

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

The invention discloses a single-screw expansion machine. A distance H1 of tooth front side generatrixes of gear teeth of star wheels of the single-screw expansion machine from an upper tooth surface is less than a distance H2 of tooth back side generatrixes of the gear teeth of the star wheels of the single-screw expansion machine from the upper tooth surface, and the product of the H1 and an L1 is less than the product of the H2 and an L2, wherein the L1 is the contact length of the tooth front side generatrixes of the gear teeth of the star wheels and the screw groove of a screw, and the L2 is the contact length of the tooth back side generatrixes of the gear teeth of the star wheels and the screw groove of the screw, so that the kinetic moment of gas of the two sides of the gear teeth of the star wheels is a positive value. The star wheels can rotate under the action of the kinetic moment of the gas without the pushing of the screw, so that the mechanical loss of the screw movement can be reduced, the working efficiency of the single-screw expansion machine can be improved and the energy consumption can be reduced. Meanwhile the wear of the gear teeth of the star wheels can be reduced, so that the service life of the star wheels can be improved.

Description

A kind of single-screw expander
Technical field
The present invention relates to a kind of single-screw expander, a kind of energy-efficient single-screw expander.
Background technology
nullOn front side of the tooth of the star-wheel of existing single-screw expander, bus is to bus on rear side of tooth equal to star-wheel of the distance of the addendum flank of star-wheel to the distance of the addendum flank of star-wheel，Phase before inflation，On front side of star-wheel tooth, bus length in screw channel is more than bus length in screw channel on rear side of star-wheel tooth，So that the gas moment on this star-wheel two flank is negative value，Phase upon inflation，On front side of star-wheel tooth, bus length in screw channel is less than bus length in screw channel on rear side of star-wheel tooth，Make gas moment on this star-wheel two flank on the occasion of，But it is much greater owing to expanding the gas moment of gas force moment ratio expansion later stage star-wheel two flank of two flanks of early stage star-wheel，The gas resultant moment making the gear teeth of multiple star-wheels that the screw channel with screw rod engages becomes the moment of resistance of decompressor motion，Therefore the mechanical loss of screw rod is increased，Affect the efficiency of decompressor，Also can aggravate the abrasion of the gear teeth of star-wheel simultaneously.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of work efficiency high, the single-screw expander of life-span length.
The present invention solves that its technical problem the technical scheme is that
A kind of single-screw expander, including body, a main shaft it is provided with in described body, the outer surface of described main shaft is provided with a screw rod, the axial of described screw rod is respectively provided on two sides with the star-wheel engaged, the addendum flank of the star-wheel of the axial side of described screw rod is upward, the addendum flank of the star-wheel of the axial opposite side of described screw rod is down, it is characterized in that: on front side of the tooth of the gear teeth of described star-wheel, bus is H1 to the distance of described addendum flank, on rear side of the tooth of the gear teeth of described star-wheel, bus is H2 to the distance of described addendum flank, on front side of described tooth, bus is L1 with the contact length of the screw channel of described screw rod, on rear side of described tooth, bus is L2 with the contact length of the screw channel of described screw rod, wherein, and H1 × L1 ＜ H2 × L2, the screw channel of described screw rod matches with the profile of tooth of the gear teeth of described star-wheel.
As the further improvement of the present invention, described screw rod is six screw rods, and described star-wheel comprises 11 gear teeth.
The invention has the beneficial effects as follows: on front side of the tooth of the gear teeth of the star-wheel of a kind of single-screw expander of the present invention, bus is less than distance H2 of bus extremely described addendum flank on rear side of the tooth of described star-wheel to distance H1 of described addendum flank, and on front side of described H1 and the tooth of the gear teeth of star-wheel the product of bus and the contact length L1 of the screw channel of described screw rod less than the product of bus on rear side of described H2 and the tooth of the gear teeth of star-wheel to distance H2 of described addendum flank, make the aerodynamic force square of star-wheel gear teeth both sides on the occasion of, decrease the mechanical loss of screw motion, reduce the energy consumption of single-screw expander, the abrasion of the gear teeth of star-wheel can be reduced simultaneously, improve the life-span of star-wheel.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of single-screw expander of the present invention；
Fig. 2 is the sectional view that the gear teeth of the star-wheel of the present invention engage with the screw channel of screw rod；
Fig. 3 is the Local map that the star-wheel gear teeth of the present invention engage with screw channel.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings, however, it is desirable to explanation, the explanation to implementation below is schematic, is not intended that the concrete restriction to the present invention.
With reference to Fig. 1, a kind of single-screw expander of the present invention includes body 2, one main shaft 3 is installed in body 2, the outer surface of main shaft 3 is provided with a screw rod 1, screw rod 1 is six screw rods, and the axial both sides of described screw rod 1 are respectively arranged with the star-wheel 5 engaged, star-wheel 5 comprise 11 teeth, upward, the addendum flank 10 of the star-wheel 5 of opposite side is down for the addendum flank 10 of the star-wheel 5 of the axial side of screw rod 1.Being only the preferred embodiments of the present invention, screw rod 1 is not limited to six screw rods and the combination of 11 dental stars wheel with the combination of star-wheel 5, it is also possible to combination of the combination taken turns for four-head screw rod and six dental stars or six screw rods and nine dental stars wheel etc..
With reference to Fig. 2 and Fig. 3, on front side of the tooth of the gear teeth of described star-wheel 5, bus 8 is H1 to the distance of described addendum flank 10, on rear side of the tooth of described star-wheel 5, bus 9 is H2 to the distance of described addendum flank 10, on front side of described tooth, bus (8) is L1 with the contact length of the screw channel of described screw rod (1), on rear side of described tooth, bus (9) is L2 with the contact length of the screw channel of described screw rod (1), wherein, and H1 × L1 ＜ H2 × L2, due to screw channel and the gear teeth meshing of star-wheel 5 of screw rod 1, the screw channel of screw rod 1 matches with the profile of tooth of the gear teeth of described star-wheel 5.In the operation process of a kind of single-screw expander of the present invention, due to each gear teeth of star-wheel 5 in the overall process of gas expansion, and H1 × L1 ＜ H2 × L2, on rear side of the tooth of the gear teeth of star-wheel 5, the gas force of 12 is more than the gas force of 11 on front side of the tooth of the star-wheel gear teeth, so that the gas moment of two flanks on the gear teeth of this star-wheel be on the occasion of, and the gas moment of two flanks of all gear teeth engaged with screw channel be all on the occasion of, the resultant moment of two flank gas forces of the gear teeth of the most multiple star-wheels 5 becomes the kinetic moment of star-wheel 5, so star-wheel 5 rotates under the effect of gas force kinetic moment, and promote without screw rod 1, on the one hand the mechanical loss of screw rod is reduced, improve the work efficiency of single-screw expander, on the other hand the life-span of star-wheel is also improved.
The foregoing is only the preferred embodiments of the present invention, as long as realizing within the technical scheme of the object of the invention broadly falls into protection scope of the present invention with essentially identical means.

Claims (2)

  1. null1. a single-screw expander，Including body (2)，A main shaft (3) it is provided with in described body (2)，The outer surface of described main shaft (3) is provided with a screw rod (1)，The axial of described screw rod (1) is respectively provided on two sides with the star-wheel (5) engaged，The addendum flank (10) of the star-wheel (5) of the axial side of described screw rod (1) is upward，The addendum flank (10) of the star-wheel (5) of the axial opposite side of described screw rod (1) is down，It is characterized in that: on front side of the tooth of the gear teeth of described star-wheel (5), bus (8) is H1 to the distance of described addendum flank (10)，On rear side of the tooth of the gear teeth of described star-wheel (5), bus (9) is H2 to the distance of described addendum flank (10)，On front side of described tooth, bus (8) is L1 with the contact length of the screw channel of described screw rod (1)，On rear side of described tooth, bus (9) is L2 with the contact length of the screw channel of described screw rod (1)，Wherein，And H1 × L1 ＜ H2 × L2，The screw channel of described screw rod (1) matches with the profile of tooth of the gear teeth of described star-wheel (5).
  2. 2. a kind of single-screw expander as claimed in claim 1, it is characterised in that: described screw rod (1) is six screw rods, and described star-wheel (5) comprises 11 gear teeth.
CN201610404328.9A 2016-06-07 2016-06-07 A kind of single-screw expander Active CN105937608B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610404328.9A CN105937608B (en) 2016-06-07 2016-06-07 A kind of single-screw expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610404328.9A CN105937608B (en) 2016-06-07 2016-06-07 A kind of single-screw expander

Publications (2)

Publication Number Publication Date
CN105937608A true CN105937608A (en) 2016-09-14
CN105937608B CN105937608B (en) 2018-04-24

Family

ID=57152473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610404328.9A Active CN105937608B (en) 2016-06-07 2016-06-07 A kind of single-screw expander

Country Status (1)

Country Link
CN (1) CN105937608B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001153074A (en) * 1999-10-26 2001-06-05 Shiliang Cha Single screw compressor with tooth of non-equal width
CN101424266A (en) * 2008-12-22 2009-05-06 李锦上 Oblique star wheel single screw compressor
CN201284741Y (en) * 2008-11-07 2009-08-05 徐道敏 Meshing structure of single-screw meshing pair
CN201461864U (en) * 2009-06-25 2010-05-12 上海孚创螺杆技术有限公司 Single-worm engaging mechanism with reducing generatrix secondary envelope single-worm molded line
CN102094811A (en) * 2011-02-15 2011-06-15 李锦上 Non-linear shovel surface secondary enveloping molded line single screw rod meshing pair
CN205841672U (en) * 2016-06-07 2016-12-28 中山爱耕压缩机有限公司 A kind of single-screw expander

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001153074A (en) * 1999-10-26 2001-06-05 Shiliang Cha Single screw compressor with tooth of non-equal width
CN201284741Y (en) * 2008-11-07 2009-08-05 徐道敏 Meshing structure of single-screw meshing pair
CN101424266A (en) * 2008-12-22 2009-05-06 李锦上 Oblique star wheel single screw compressor
CN201461864U (en) * 2009-06-25 2010-05-12 上海孚创螺杆技术有限公司 Single-worm engaging mechanism with reducing generatrix secondary envelope single-worm molded line
CN102094811A (en) * 2011-02-15 2011-06-15 李锦上 Non-linear shovel surface secondary enveloping molded line single screw rod meshing pair
CN205841672U (en) * 2016-06-07 2016-12-28 中山爱耕压缩机有限公司 A kind of single-screw expander

Also Published As

Publication number Publication date
CN105937608B (en) 2018-04-24

Similar Documents

Publication Publication Date Title
CN202629000U (en) Duplicate gear of electric forklift reducer
CN205841672U (en) A kind of single-screw expander
CN105041647B (en) A kind of double-screw compressor rotor flute profile
CN204267633U (en) A kind of energy recycle device
CN105937608A (en) Single-screw expansion machine
CN202900668U (en) Novel double screw compressor rotor
CN201284741Y (en) Meshing structure of single-screw meshing pair
CN103982425A (en) Tooth type of dry double-screw compressor rotor
CN103495617B (en) A kind of change wall thickness cylinder part Roll-extrusion forming device
CN205858690U (en) Oil free screw rotor with synchromesh gear
CN203453432U (en) Double-reduction duplicate gear assembly of automobile drive axle
CN201826898U (en) Double-screw expansion machine
CN201900193U (en) Roll-in device for drawing part of seamless steel tube
CN204113553U (en) A kind of rise-fall type generator set
CN204641075U (en) Forme electric locking device
CN201209556Y (en) Screw of screw compressor
CN202418491U (en) Cubic parabola circular tooth gear
CN201884565U (en) Improved single-edge double-transmission speed reducer
CN101082339A (en) Screw rod line of screw air compressor
CN202326245U (en) Rotor device driving male rotor by female rotor of screw compressor
CN201141420Y (en) Speed reducer of electric machine for roller
CN201568533U (en) Pumping unit speed reducer with high transmission ratio
CN103075482B (en) Dual-meshing needle finger cam indexing mechanism
CN203580173U (en) Pressing cage of oil press
CN204408101U (en) A kind of direct connection step-up drive generating set

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 528434, Jinxiu Road, 113, Fu town, Guangdong, Zhongshan

Applicant after: GUANGDONG ALINK ENERGY EQUIPMENT CO.,LTD.

Address before: 528434, Jinxiu Road, 113, Fu town, Guangdong, Zhongshan

Applicant before: ZHONGSHAN AGAIN COMPRESSOR Co.,Ltd.

CB02 Change of applicant information
CB02 Change of applicant information

Address after: 528427 101 unit 101, No. 23, Tongji West Road, Nantou Town, Nantou, Guangdong

Applicant after: GUANGDONG ALINK ENERGY EQUIPMENT CO.,LTD.

Address before: 528434, Jinxiu Road, 113, Fu town, Guangdong, Zhongshan

Applicant before: GUANGDONG ALINK ENERGY EQUIPMENT CO.,LTD.

CB02 Change of applicant information
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A single screw expander

Granted publication date: 20180424

Pledgee: Zhongshan branch of Dongguan Bank Co.,Ltd.

Pledgor: GUANGDONG ALINK ENERGY EQUIPMENT CO.,LTD.

Registration number: Y2024980009844

PE01 Entry into force of the registration of the contract for pledge of patent right