CN1676936A - Rotor tooth-profile for screw pump - Google Patents

Rotor tooth-profile for screw pump Download PDF

Info

Publication number
CN1676936A
CN1676936A CN 200410071580 CN200410071580A CN1676936A CN 1676936 A CN1676936 A CN 1676936A CN 200410071580 CN200410071580 CN 200410071580 CN 200410071580 A CN200410071580 A CN 200410071580A CN 1676936 A CN1676936 A CN 1676936A
Authority
CN
China
Prior art keywords
rotor
tooth
arc
circular arc
section
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
CN 200410071580
Other languages
Chinese (zh)
Other versions
CN100365284C (en
Inventor
肖文伟
李汗强
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.)
SHANGHAI GLOBE SCREW TECHNOLOGY CO LTD
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CNB200410071580XA priority Critical patent/CN100365284C/en
Publication of CN1676936A publication Critical patent/CN1676936A/en
Application granted granted Critical
Publication of CN100365284C publication Critical patent/CN100365284C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

A rotor tooth-profile for screw pump relates to male rotors and female rotors meshed to them, both of whom are meshed to have a rotary movement to compress and transmit fluid, and the rotor end face tooth profile is composed of various natures of wires and parameters. The technical characteristics of the invention is that: the rotor end face tooth profile contains four, five or six sections of tooth curves with the circular nature; when it has five sections, addendum circular arcs and dedendum circles are added to the addendum or the dedendum of the rotor; when it has six sections, both the addendum circular arcs and the dedendum circles are added to the addendum and the dedendum of the rotor at the same time, to form four different combination schemes; there are common tangents at the connection points of the two adjacent teeth forming curves, which has a smooth tooth-profile without cusp, a high-wearing feature, a long life of the rotor, a small leakage triangle, and a good sealing property. It is particularly suitable for manufacturing the double screw pump and three screw pump.

Description

A kind of rotor tooth-profile for screw pump
One. technical field
The present invention relates to the rotor end-face flute profile of the screw pump that the conjugation engagement is rotated in the machine chamber, particularly relate to the screw rotor end face flute profile of two screw pump and three screw pump.
Two. technical background
The sealing surface and the power transmission face of existing closed type screw pump rotor end face flute profile generally are made up of the point gearing cycloid, and by adopting point gearing cycloid and involute to form, forming between the tooth curve is not smooth connection, exists cusp yet.Also have and use radial alignment that cusp is revised, but also just the acute angle cusp is improved to the obtuse angle cusp, cusp still exists, adopt little circular arc that cusp is revised in addition, though improved wear resistance, but the conjugation meshing relation of this time point and cycloid is destroyed, causes volumetric efficiency to reduce, and in fact the seal of rotor is destroyed.
Three. summary of the invention
The objective of the invention is: develop a kind of not with the closed type screw pump rotor end face flute profile of cusp, can improve the wear resistance of rotor, prolong the working life of rotor, the conjugation meshing relation that can keep molded lines of rotor again, make the leakage triangle of rotor little simultaneously, with the sealing of assurance screw pump, thus the volumetric efficiency of raising pump.
Screw pump end face flute profile of the present invention comprises the tooth curve of four arcs character, and two neighboring sections tooth curve has common tangent at the tie point place.
When the rotor end-face flute profile only was made up of the curve of this four arcs character, it is as follows that each section formed the tooth curve: the composition tooth curve of (1) driven rotor was followed successively by roundlet arc 1, arc envelope line 2, arc envelope line 3, roundlet arc 4; (2) the composition tooth curve of power rotor is followed successively by arc envelope line 5, roundlet arc 6, roundlet arc 7, arc envelope line 8.Wherein, arc envelope line 5 is conjugation tooth curves of roundlet arc 1, and arc envelope line 8 is conjugation tooth curves of roundlet arc 4, and arc envelope line 2 is conjugation tooth curves of roundlet arc 6, and arc envelope line 3 is conjugation tooth curves of roundlet arc 7.
Can add the tooth top circular arc at the male rotor tooth top again, add the tooth root circular arc at the female rotor tooth root.This moment, the composition tooth curve of screw rotor was five sections.
Can add the tooth top circular arc at the female rotor tooth top again, add the tooth root circular arc at the male rotor tooth root.This moment, the composition tooth curve of screw rotor was five sections.
Can add tooth top circular arc and tooth root circular arc simultaneously at the tooth top and the tooth root of female rotor again, add tooth top circular arc and root circle curved tooth root circular arc simultaneously at the tooth top and the tooth root of male rotor.This moment, the composition tooth curve of screw rotor was six sections.At this moment, be suitable for two screw pump and three screw pump rotor most.
Adopt the end face flute profile of the molded lines composition rotor of six sections circular arc character, with Pitch radius R 2jDifferent size constitute the flute profile series of power rotor and driven rotor, there is common tangent at the tie point place of adjacent molded lines.
The molded lines of driven rotor (F) and power rotor (M) is composed as follows:
The molded lines of driven rotor (F) is formed:
c 2d 2Section: circular arc, by on driven rotor (F), the center of circle is at O 2Point, radius are R 2gCircular arc form.
d 2e 2Section: arc envelope line is as power rotor (M) pitch circle M jAlong driven rotor (F) pitch circle F jWhen making pure rolling, by, the center of circle upper at power rotor (M) at O 1O 2O on the line 4Point, radius are R 4The envelope of track that circular motion forms.
e 2f 2Section: circular arc, by on driven rotor (F), the center of circle is at O 3Point, radius are R 3Circular arc form.
f 2a 2Section: circular arc, by on driven rotor (F), the center of circle is at O 2Point, radius are R 2Circular arc form.
a 2b 2Section: circular arc, by on driven rotor (F), with circular arc e 2f 2About angle φ 1Angular bisector be symmetrically formed.
b 2c 2Section: arc envelope line, by on driven rotor (F), with arc envelope line d 2e 2About angle φ 1Angular bisector be symmetrically formed.
The molded lines of power rotor (M) is formed:
c 1d 1Section: circular arc, by on power rotor (M), the center of circle is at O 1Point, radius are R 1Circular arc form.
d 1e 1Section: circular arc, by going up the center of circle at O at power rotor (M) 1O 2O on the line 4The point radius is R 4Circular arc form.
e 1f 1Section: arc envelope line is as driven rotor (F) pitch circle F jAlong power rotor (M) pitch circle M jWhen making pure rolling, by, the center of circle upper at driven rotor (F) at O 3Point, radius are R 3The envelope of track that circular motion forms.
f 1a 1Section: circular arc, by on power rotor (M), the center of circle is at O 1Point, radius are R 1gCircular arc form.
a 1b 1Section: arc envelope line is as driven rotor (F) pitch circle F jAlong power rotor (M) pitch circle M jWhen making pure rolling, by the circular arc a on driven rotor (F) 2b 2The envelope of track that Duan Yundong forms, it and arc envelope line e 1f 1Section is about angle φ 2Symmetrical.
b 1c 1Section: circular arc, by the circular arc d on power rotor (M) 1e 1Section is about angle c 1O 1d 1Angular bisector be symmetrically formed.
D on the driven rotor (F) 2e 2Section and e 2f 2The tie point e of section 2The point place, two curves have common tangent.D on the power rotor (M) 1e 1Section and e 1f 1The tie point e of section 1The point place, two curves have common tangent.
E on the driven rotor (F) 2f 2Section and f 2a 2The tie point f of section 2The point place, two curves have common tangent.E on the power rotor (M) 1f 1Section and f 1a 1The tie point f of section 1The point place, two curves have common tangent.
C on the driven rotor (F) 2d 2Section and d 2e 2The tie point d of section 2The point place, two curves have common tangent.C on the power rotor (M) 1d 1Section and d 1e 1The tie point d of section 1The point place, two curves have common tangent.
A on driven rotor (F) and the power rotor (M) 2, b 2, c 2, a 1, b 1, c 1The tie point place, adjacent curve all has common tangent.
The upper f of driven rotor (F) 2a 2Section central angle φ 2Satisfy: (i 2/ i 1) φ 2=80 °～100 °, establishing the driven rotor number of teeth here is i 2, the power rotor number of teeth is i 1
The upper circular arc e of driven rotor (F) 2f 2The center of circle O of section 3Point is at driven rotor pitch circle (F j) in.
Driven rotor (F) pitch circle (F j) interior some e 2Apart from pitch circle (F j) distance be 0～0.12R 2j
The upper circular arc d of power rotor (M) 1e 1The radius R of section 4Be 0～0.14R 2j
When being used for screw pump, the number of teeth of power rotor (M) and driven rotor (F) and be not less than 3, the number of teeth difference that driven rotor (F) number of teeth subtracts power rotor (M) number of teeth is 0 or 1.
Driven rotor (F) can be monolateral symmetric form with the flute profile of power rotor (M), also can be the bilateral symmetry type.When flute profile is monolateral symmetry, driven rotor (F) Outside radius R 2Be not more than driven rotor pitch circle (F j) radius R 2jWhen flute profile is the bilateral symmetry type, driven rotor (F) Outside radius R 2With driven rotor pitch circle (F j) radius R 2jSatisfy following relation: R 2-R 2j=0～0.12R 2j
The centre distance A of driven rotor and power rotor is (R2 j+ R 1j).
The Root radius R of power rotor (M) 1gBe (A-R 2), the Root radius R of driven rotor (F) 2gBe (A-R 1).
Screw pump rotor flute profile of the present invention is made up of six sections circular arcs, and its advantage is that molded lines does not have cusp and smooth, and wear resistance is good, the long service life of rotor, and leakage triangle is little, good airproof performance.
Four. description of drawings
Following accompanying drawing elaborates to the creation of driven rotor (F) and power rotor (M) end face flute profile:
Fig. 1 is when the rotor end-face flute profile only is made up of the curve of this four arcs character, the composition schematic representation of screw pump rotor end face flute profile.
Fig. 2 is the monolateral symmetric rotor end face of a two screw pump flute profile example.
Fig. 3 is a two screw pump double-sided rotor symmetry end face flute profile example.
According to Fig. 2, screw pump rotor end face tooth type shown in Figure 3, driven rotor (F) flute profile is by a 2b 2, b 2c 2, c 2d 2, d 2e 2, e 2f 2, f 2a 2Six sections compositions, power rotor (M) flute profile is by a 1b 1, b 1c 1, c 1d 1, d 1e 1, e 1f 1, f 1a 1Six sections compositions.
At first determine Pitch radius R 2jCan determine R according to gear ratio again 1jThen according to condition: A=R 1j+ R 2j, can determine centre distance A.According to condition: R 2-R 2j=0～0.12R 2j, at selected 0～0.12R 2jIn behind numerical value, can determine driven rotor (F) Outside radius R 2According to condition: R 1/ R 2=1～2, in selected 1～2, behind numerical value, can determine R 1According to condition: A=R 2g+ R 1, can determine R 2gAccording to condition: A=R 2+ R 1g, can determine power rotor (M) Root radius R 1g
According to condition: R 4=0～0.14R 2j, at selected 0～0.14R 2jIn after the number, can determine R 4At O 1O 2On the line, d on power rotor (M) outside circle 1Point R 4The place can determine O 4The point position is on power rotor (M), with O 4Point is for the center of circle, with R 4Be radius, can determine circular arc d 1e 1Section.
On driven rotor (F), can make d 1e 1The arc envelope line d of section 2e 2Section is according to e 2Point is apart from pitch circle (F j) distance be 0～0.12R 2j, can determine e 2The point position.
According to e 2f 2Section circular arc and d 2e 2Section is tangential on e 2Point is tangential on f with driven rotor (F) outside circle 2Point can be determined e 2f 2The home position O of section circular arc 3Point, radius R 3, straight line O 2O 3f 2Position angle φ O3, with O 3Point is for the center of circle, with R 3Be radius, on driven rotor (F), can make e 2f 2Section.
On power rotor (M), can make e 2f 2The arc envelope line e of section 1f 1Section.
According to φ 2Satisfy: (i 2/ i 1) φ 2=80 °～100 °, in selected 80 °～100 °, after angle, can determine φ 2Value.On driven rotor (F), with O 2Point is for the center of circle, with R 2Be radius, can make f 2a 2Section is according to φ 2Can determine a 2The point position.
On power rotor (M), with O 1Point is for the center of circle, with R 1gBe radius, can make circular arc f 1a 1Section is according to central angle (i 2/ i 1) φ 2Can determine a 1The point position.
According to: φ 2+ φ 1+ 2 φ O3=360 °/i 2(the driven rotor number of teeth) can determine φ 1Value.On driven rotor (F), with O 2Point is for the center of circle, with R 2gBe radius, can make c 2d 2Section.
On power rotor (M), with O 1Be the center of circle, with R 1Be radius, can make c 1d 1The section circular arc is according to central angle (i 2/ i 1) φ 1Can determine c 1The point position.
On driven rotor (F), with angle c 2O 2d 2Bisector O 2L 2Be symmetry axis, can make d 2e 2Section, e 2f 2The symmetrical molded lines b of section 2c 2Section, a 2b 2Section.
On power rotor (M), with angle c 1O 1d 1Bisector O 1L 1Be symmetry axis, can make d 1e 1Section, e 1f 1The symmetrical molded lines b of section 1c 1Section, a 1b 1Section.
So far, the end face flute profile of two screw pump active and driven rotor is made fully.
Need to prove: the above accompanying drawing and explanation only are several more satisfactory exemplifying embodiment of the present invention, and unrestricted protection scope of the present invention.For example, flute profile of the present invention also can be used to make rotor of helical lobe compressor, at this moment, the number of teeth of power rotor (M) and driven rotor (F) and be not less than 5, the number of teeth difference that driven rotor (F) number of teeth subtracts power rotor (M) number of teeth is not more than 2.

Claims (12)

1. screw pump rotor end face flute profile, it is characterized in that: screw rod end face flute profile comprises the tooth curve of four arcs character, and two neighboring sections tooth curve has common tangent at the tie point place.When the rotor end-face flute profile only was made up of the curve of this four arcs character, it is as follows that each section formed the tooth curve: the composition tooth curve of (1) driven rotor was followed successively by roundlet arc 1, arc envelope line 2, arc envelope line 3, roundlet arc 4; (2) the composition tooth curve of power rotor is followed successively by arc envelope line 5, roundlet arc 6, roundlet arc 7, arc envelope line 8.Wherein, arc envelope line 5 is conjugation tooth curves of roundlet arc 1, and arc envelope line 8 is conjugation tooth curves of roundlet arc 4, and arc envelope line 2 is conjugation tooth curves of roundlet arc 6, and arc envelope line 3 is conjugation tooth curves of roundlet arc 7.
2. according to screw pump rotor end face flute profile according to claim 1, it is characterized in that: can add the tooth top circular arc at the male rotor tooth top again, add the tooth root circular arc at the female rotor tooth root.This moment, the composition tooth curve of screw rotor was five sections.
3. according to screw pump rotor end face flute profile according to claim 1, it is characterized in that: can add the tooth top circular arc at the female rotor tooth top again, add the tooth root circular arc at the male rotor tooth root.This moment, the composition tooth curve of screw rotor was five sections.
4. according to screw pump rotor end face flute profile according to claim 1, it is characterized in that: can add tooth top circular arc and tooth root circular arc simultaneously at the tooth top and the tooth root of female rotor again, add tooth top circular arc and root circle curved tooth root circular arc simultaneously at the tooth top and the tooth root of male rotor.This moment, the composition tooth curve of screw rotor was six sections.At this moment, be suitable for two screw pump and three screw pump rotor most.At this moment, it is as follows that each section forms the tooth curve:
(1) molded lines of driven rotor (F) is formed:
c 2d 2Section: circular arc, by on driven rotor (F), the center of circle is at O 2Point, radius are R 2gCircular arc form.
d 2e 2Section: arc envelope line is as power rotor (M) pitch circle M jAlong driven rotor (F) pitch circle F jWhen making pure rolling, by, the center of circle upper at power rotor (M) at O 1O 2O on the line 4Point, radius are R 4The envelope of track that circular motion forms.
e 2f 2Section: circular arc, by on driven rotor (F), the center of circle is at O 3Point, radius are R 3Circular arc form.
f 2a 2Section: circular arc, by on driven rotor (F), the center of circle is at O 2Point, radius are R 2Circular arc form.
a 2b 2Section: circular arc, by on driven rotor (F), with circular arc e 2f 2About angle φ 1Angular bisector be symmetrically formed.
b 2c 2Section: arc envelope line, by on driven rotor (F), with arc envelope line d 2e 2About angle φ 1Angular bisector be symmetrically formed, with power rotor.
(2) molded lines of power rotor (M) is formed:
c 1d 1Section: circular arc, by on power rotor (M), the center of circle is at O 1Point, radius are R 1Circular arc form.
d 1e 1Section: circular arc, by going up the center of circle at O at power rotor (M) 1O 2O on the line 4The point radius is R 4Circular arc form.
e 1f 1Section: arc envelope line is as driven rotor (F) pitch circle F jAlong power rotor (M) pitch circle M jWhen making pure rolling, by, the center of circle upper at driven rotor (F) at O 3Point, radius are R 3The envelope of track that circular motion forms.
f 1a 1Section: circular arc, by on power rotor (M), the center of circle is at O 1Point, radius are R 1gCircular arc form.
a 1b 1Section: arc envelope line is as driven rotor (F) pitch circle F jAlong power rotor (M) pitch circle M jWhen making pure rolling, by the circular arc a on driven rotor (F) 2b 2The envelope of track that Duan Yundong forms, it and arc envelope line e 1f 1Section is about angle φ 2Symmetrical.
b 1c 1Section: circular arc, by the circular arc d on power rotor (M) 1e 1Section is about angle c 1O 1d 1Angular bisector be symmetrically formed.
5. according to the described screw pump rotor end face of one of claim 1 to 4 flute profile, it is characterized in that: the tie point place smooth transition of the adjacent two tooth curves on driven rotor (F) and the power rotor (M) has common tangent.
6. screw pump rotor end face tooth type according to claim 4 is characterized in that: the upper f of driven rotor (F) 2a 2Section central angle φ 2Satisfy: (i 2/ i 1) φ 2=80 °～100 °, establishing the driven rotor number of teeth here is i 2, the power rotor number of teeth is i 1
7. according to the described screw pump rotor end face tooth type of one of claim 1 to 4, it is characterized in that: the upper e of driven rotor (F) 2f 2The center of circle O of section 3Point is at driven rotor pitch circle (F j) in.
8. according to the described screw pump rotor end face of one of claim 1 to 4 flute profile, it is characterized in that: driven rotor (F) pitch circle (F j) interior some e 2Apart from pitch circle (F j) distance be 0～0.12R 2j
9. according to the described screw pump rotor end face tooth type of one of claim 1 to 4, it is characterized in that: the upper circular arc d of power rotor (M) 1e 1The radius R of section 4Be 0～0.14R 2j
10. according to the described screw pump rotor end face of one of claim 1 to 4 flute profile, it is characterized in that: the number of teeth of power rotor (M) and driven rotor (F) and be not less than 3, the number of teeth difference that driven rotor (F) number of teeth subtracts power rotor (M) number of teeth is 0 or 1.
11. according to the described screw pump rotor end face of one of claim 1 to 4 flute profile, it is characterized in that: driven rotor (F) can be monolateral symmetric form with the flute profile of power rotor (M), also can be the bilateral symmetry type.When flute profile is monolateral symmetry, driven rotor (F) Outside radius R 2Be not more than driven rotor pitch circle (F j) radius R 2jWhen flute profile is the bilateral symmetry type, driven rotor (F) Outside radius R 2With driven rotor pitch circle (F j) radius R 2jSatisfy following relation: R 2-R 2j=0～0.12R 2j
12. screw pump rotor end face flute profile according to claim 1, it is characterized in that: also can be used to make rotor of helical lobe compressor, at this moment, the number of teeth of power rotor (M) and driven rotor (F) and be not less than 5, the number of teeth difference that driven rotor (F) number of teeth subtracts power rotor (M) number of teeth is not more than 2.
CNB200410071580XA 2004-03-30 2004-07-12 Rotor tooth-profile for screw pump Expired - Fee Related CN100365284C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200410071580XA CN100365284C (en) 2004-03-30 2004-07-12 Rotor tooth-profile for screw pump

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN200410032062.7 2004-03-30
CN200410032062 2004-03-30
CNB200410071580XA CN100365284C (en) 2004-03-30 2004-07-12 Rotor tooth-profile for screw pump

Publications (2)

Publication Number Publication Date
CN1676936A true CN1676936A (en) 2005-10-05
CN100365284C CN100365284C (en) 2008-01-30

Family

ID=35049623

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200410071580XA Expired - Fee Related CN100365284C (en) 2004-03-30 2004-07-12 Rotor tooth-profile for screw pump

Country Status (1)

Country Link
CN (1) CN100365284C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1328513C (en) * 2005-11-21 2007-07-25 西安交通大学 Method for designing molded lines of rotor of helical lobe compressor
CN102003394A (en) * 2010-12-24 2011-04-06 上海耐浦流体机械科技有限公司 Screw vacuum pump rotor profile
CN102022334A (en) * 2010-12-24 2011-04-20 上海耐浦流体机械科技有限公司 Rotor molded line of screw vacuum pump
CN102287374A (en) * 2011-09-07 2011-12-21 中国船舶重工集团公司第七一一研究所 Tooth form of twin-screw compressor rotor
CN102828954A (en) * 2012-09-14 2012-12-19 上海齐耀螺杆机械有限公司 Novel rotor profile of twin-screw compressor
CN105370575A (en) * 2015-11-26 2016-03-02 珠海格力电器股份有限公司 Rotor structure and compressor comprising same
CN108869272A (en) * 2018-08-20 2018-11-23 天津泵业机械集团有限公司 Screw pump engages driven screw flute profile sharp corner chamfered edge molded line structure in flute profile
CN114320921A (en) * 2021-12-30 2022-04-12 中船重工(重庆)西南装备研究院有限公司 Double-end claw type pump rotor molded lines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2234777C3 (en) * 1972-07-14 1980-10-30 Linde Ag, 6200 Wiesbaden compressor
SE429783B (en) * 1981-12-22 1983-09-26 Sullair Tech Ab ROTORS FOR A SCREW ROTATOR
US4695233A (en) * 1986-07-10 1987-09-22 Kabushiki Kaisha Kobe Seiko Sho Screw rotor mechanism
CN1006178B (en) * 1986-12-17 1989-12-20 武汉冷冻机厂 Circular-arc teeth shape of screw type compressor rotor
JPS6463688A (en) * 1987-09-01 1989-03-09 Kobe Steel Ltd Screw rotor for screw compressor
CN2397284Y (en) * 1999-07-16 2000-09-20 大连理工大学 Screw rotor new tooth form for double screw compressor
US6193491B1 (en) * 1999-12-22 2001-02-27 Hong-Yih Cheng Rotors for screw compressor
KR100425414B1 (en) * 2002-01-25 2004-04-08 이 재 영 rotor profile for a screw compressor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1328513C (en) * 2005-11-21 2007-07-25 西安交通大学 Method for designing molded lines of rotor of helical lobe compressor
CN102022334B (en) * 2010-12-24 2013-08-07 上海戈里流体机械有限公司 Rotor molded line of screw vacuum pump
CN102003394A (en) * 2010-12-24 2011-04-06 上海耐浦流体机械科技有限公司 Screw vacuum pump rotor profile
CN102022334A (en) * 2010-12-24 2011-04-20 上海耐浦流体机械科技有限公司 Rotor molded line of screw vacuum pump
CN102287374B (en) * 2011-09-07 2013-10-16 中国船舶重工集团公司第七一一研究所 Tooth form of twin-screw compressor rotor
CN102287374A (en) * 2011-09-07 2011-12-21 中国船舶重工集团公司第七一一研究所 Tooth form of twin-screw compressor rotor
CN102828954A (en) * 2012-09-14 2012-12-19 上海齐耀螺杆机械有限公司 Novel rotor profile of twin-screw compressor
CN102828954B (en) * 2012-09-14 2015-06-17 上海齐耀螺杆机械有限公司 Novel rotor profile of twin-screw compressor
CN105370575A (en) * 2015-11-26 2016-03-02 珠海格力电器股份有限公司 Rotor structure and compressor comprising same
CN105370575B (en) * 2015-11-26 2017-06-30 珠海格力电器股份有限公司 Rotor structure and compressor comprising same
CN108869272A (en) * 2018-08-20 2018-11-23 天津泵业机械集团有限公司 Screw pump engages driven screw flute profile sharp corner chamfered edge molded line structure in flute profile
CN114320921A (en) * 2021-12-30 2022-04-12 中船重工(重庆)西南装备研究院有限公司 Double-end claw type pump rotor molded lines
CN114320921B (en) * 2021-12-30 2023-08-25 中船重工(重庆)西南装备研究院有限公司 Design method of double-head claw pump rotor molded line

Also Published As

Publication number Publication date
CN100365284C (en) 2008-01-30

Similar Documents

Publication Publication Date Title
KR101664512B1 (en) Tooth profile for rotors of positive displacement external gear pumps
CN1816694A (en) Internal gear pump and inner rotor of the pump
CN1676936A (en) Rotor tooth-profile for screw pump
CN203189267U (en) Conjugated internal-external cycloid involute-type rotor of roots vacuum pump
CN108757464B (en) Straight claw rotor of claw type vacuum pump and molded line design method thereof
CN107023480B (en) A kind of complete smooth twin-screw liquid pump screw rotor
CN1764769A (en) Gerotor mechanism for a screw hydraulic machine
CN105332914A (en) Totally-smooth screw rotor
CN1676935A (en) Rotor tooth profile for helical-lobe compressor
CN1544814A (en) Medium-high pressure gear pump having asymmetric double-circular-arc gear shape
CN1651766A (en) Arc screw tooth shape of large flow double screw pump
CN108757438B (en) Full-smooth screw rotor with small enclosed volume and design method thereof
CN1140712C (en) Toothed screw bolt
CN1648456A (en) Involute line screw tooth shape of large flow double screw pump
CN1246594C (en) Approximate sealed dual head screw
CN1140711C (en) Toothed screw bolt
CN109737055A (en) A kind of oil Pump rotor component
CN1304757C (en) Dentiform screw with short seal line
CN1140710C (en) Screw bolt with new type of profile
CN110242561A (en) A kind of the big flow screw rotor and its design method of Quimby pump
CN108757439B (en) Double-head full-smooth screw rotor of double-screw liquid pump and design method thereof
CN1064437C (en) Tooth screw stem
CN206159001U (en) Poor cycloid oil pump rotor of bidentate
CN206694248U (en) A kind of complete smooth twin-screw liquid pump screw rotor
CN1072339C (en) Combined gear teeth mechanism

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SHANGHAI GLOBE SCREW TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: XIAO WENWEI

Effective date: 20101116

Free format text: FORMER OWNER: LI HANQIANG

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 200065 ROOM 301, NO.13, LANE 451, YICHUAN ROAD, SHANGHAI TO: 201504 NO.169, SONGXUAN ROAD, INDUSTRIAL ZONE, SONGYIN, TINGLIN TOWN, JINSHAN DISTRICT, SHANGHAI

TR01 Transfer of patent right

Effective date of registration: 20101116

Address after: 201504 Shanghai Jinshan District City Industrial Zone, Zhen song ting Lin Xuan hidden pine road No. 169

Patentee after: SHANGHAI GLOBE SCREW TECHNOLOGY Co.,Ltd.

Address before: 200065 Shanghai Yichuan road 451 Lane 13, Room 301

Co-patentee before: Li Hanqiang

Patentee before: Xiao Wenwei

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080130

Termination date: 20210712