CN206487619U - A kind of complete smooth straight pawl claw rotor - Google Patents

A kind of complete smooth straight pawl claw rotor Download PDF

Info

Publication number
CN206487619U
CN206487619U CN201621106230.7U CN201621106230U CN206487619U CN 206487619 U CN206487619 U CN 206487619U CN 201621106230 U CN201621106230 U CN 201621106230U CN 206487619 U CN206487619 U CN 206487619U
Authority
CN
China
Prior art keywords
pawl
cycloid
claw
circular arc
circle
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.)
Withdrawn - After Issue
Application number
CN201621106230.7U
Other languages
Chinese (zh)
Inventor
崔冬
张凌宏
王君
刘瑞青
崔锋
赵峰
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.)
China University of Petroleum UPC East China
Original Assignee
China University of Petroleum UPC East China
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 China University of Petroleum UPC East China filed Critical China University of Petroleum UPC East China
Priority to CN201621106230.7U priority Critical patent/CN206487619U/en
Application granted granted Critical
Publication of CN206487619U publication Critical patent/CN206487619U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of complete smooth straight pawl claw rotor, it is made up of 11 sections of curves:6 sections of circular arcs, the equidistant curve of 3 sections of cycloids, the envelope of 1 section of line segment and 1 section of line segment, be sequentially connected counterclockwise since pitch circle for:The sharp circular arc IJ of pitch circle circular arc GH, the envelope HI of line segment, third claw, the equidistant curve JK of cycloid, pawl bottom circular arc KA, the equidistant curve AB of cycloid, the sharp circular arc BC of the first pawl, pawl tip circle arc CD, the sharp circular arc DE of the second pawl, the equidistant curve EF and line segment FG of cycloid, adjacent curve is all smoothly connected, in the absence of rough cusp;Intermeshing 2 claw rotors are identical, and the whole correct engagements of molded line of claw rotor can be realized at work and are smoothly connected, the problem of pawl dorsal segment curve not exclusively participates in engagement is solved, improves the operating efficiency and service behaviour of claw fluid machinery.

Description

A kind of complete smooth straight pawl claw rotor
Technical field
The utility model is related to a kind of complete smooth straight pawl claw rotor.
Background technology
Claw fluid machinery is a kind of novel dry fluid machinery widely used in production, and its key designed is pawl The Profile Design of formula rotor;Claw rotor by a pair of shapes it is identical and can realize conjugation engagement rotor constitute, pass through synchronization Gear realizes the incorgruous dual AC power motion of the synchronization of rotor, changes working chamber volume generating period, completes suction, the pressure of gas Contracting and discharge.
The meshing characteristic of claw-type rotor profile directly decides the service behaviour of claw rotor, existing straight pawl molded lines of rotor Including:3 sections of circular arcs, 2 sections of cycloids, 1 section of line segment, the envelope of 1 section of line segment.Chinese patent (the patent No.: ZL201510400518.9 a kind of straight pawl rotor) is proposed, by 5 sections of circular arcs, the equidistant curve of 2 sections of cycloids, 1 section of line segment and 1 section The straight pawl rotor of the envelope composition of line segment, realizes the engagement of rotor curve, but the claw-type rotor profile has following lack Point:1. there is the part for being not involved in engagement completely in left rotor pawl back of the body EF and right rotor pawl back of the body ef, cause the engagement of rotor It can be deteriorated, sealing reduction can produce compared with gross leak and noise, reduce the operating efficiency of claw fluid machinery;2. line segment There is 1 cusp H in the equidistant curve HI of envelope GH and cycloid junction, and this cusp is not involved in curve engagement, point again Leakage abrasion, stress concentration and stress deformation are easily caused at point, the service life and stability of claw rotor is reduced.It is Chinese special Sharp (the patent No.:ZL201610321238.3 a koji pawl rotor) is proposed, by the equidistant curve group of 6 sections of circular arcs and 3 sections of cycloids Into, realize the complete of molded lines of rotor and be smoothly connected, but the claw-type rotor profile has the following disadvantages:1. stress performance turns than straight pawl Son is poor, and stress concentration phenomenon is higher than straight pawl rotor at the pawl back of the body;2. the straight pawl rotor of ratio of clearance volume of bent pawl rotor is big, larger Clearance volume can cause larger noise, vibration and energy consumption, reduce the practical performance and reliability of claw rotor.
Utility model content
The utility model is in order to solve the above problems, it is proposed that a kind of complete smooth straight pawl claw rotor and construction method, Using one section of circular arc IJ at pawl point, the envelope HI of line segment and cycloid equidistant curve JK are smoothly connected, adopted at the pawl back of the body With the equidistant curve EF of 1 section of cycloid, it is smoothly connected with the second pawl point circular arc DE and line segment FG, realizes the complete smooth of claw rotor Connection, eliminates existing claw rotor and there is cusp and the not only defect of slip, solve line segment at the pawl back of the body and not exclusively engage The problem of;The claw-type rotor profile is not only able to realize being smoothly connected for whole molded line, and can be effectively prevented from stress collection In, stress deformation and wear and leakage, improve the mechanical characteristic and engagement sealing of claw rotor so that the molded lines of rotor can Suitable for the use occasion of higher rotating speed, higher pressure and higher temperature, the performance and used life of rotor is improved;For rich Rich claw-type rotor profile type and promotion claw vavuum pump, the development of claw compressor and claw expanding machine all have important meaning Justice.
To achieve these goals, the utility model is adopted the following technical scheme that:
A kind of complete smooth straight pawl claw rotor, it, which constitutes molded line, includes:6 sections of circular arcs, the equidistant curve of 3 sections of cycloids, 1 section The envelope of line segment and 1 section of line segment, it is characterized in that:It is followed successively by counterclockwise since pitch circle:Pitch circle circular arc GH, line segment The sharp circular arc IJ of envelope HI, third claw, the equidistant curve JK of cycloid, pawl bottom circular arc KA, the equidistant curve AB of cycloid, the first pawl point The sharp circular arc DE of circular arc BC, pawl tip circle arc CD, the second pawl, the equidistant curve EF and line segment FG of cycloid, adjacent curve are smoothly connected, Rough tie point is not present in a kind of composition molded line of complete smooth straight pawl claw rotor.
Two complete smooth straight pawl claw rotors are identical and are intermeshed, and left side claw rotor (rotor 1) and the right side Side claw rotor (rotor 2) is identical, the sharp circular arc of equidistant curve AB, the first pawl of the cycloid of left side claw rotor (rotor 1) The sharp circular arc DE of BC, pawl tip circle arc CD, the second pawl, the equidistant curve EF of cycloid, line segment FG, pitch circle circular arc GH, the envelope of line segment The sharp circular arc IJ of HI, third claw, the equidistant curve JK of cycloid, pawl bottom circular arc KA, respectively with the first of right side claw rotor (rotor 2) Pawl point circular arc bc, the equidistant curve ab of cycloid, pawl bottom circular arc ka, the equidistant curve jk of cycloid, third claw sharp circular arc ij, line segment It is meshed including line hi, pitch circle circular arc gh, line segment fg, the equidistant curve ef of cycloid, the sharp circular arc de of the second pawl, pawl tip circle arc cd, Realize the correct engagement of the whole molded line of claw rotor.
A kind of complete smooth straight pawl claw rotor, pawl tip circle arc CD and the corresponding central angles of pawl bottom circular arc KA are equal, are α;
The envelope HI of line segment, is the envelope H of initial segment1I1Using origin O as pivot, turn clockwise alpha+beta angle Obtained after degree, the envelope H of initial segment1I1Equation be:
Angle beta is determined by below equation:
Wherein, R1For pawl tip circle arc radius, R2For pitch radius, R5For the sharp arc radius of the second pawl;
The equidistant curve AB of cycloid equation is:
Wherein, matrixR4For the sharp arc radius of the first pawl;
The equidistant curve JK of cycloid, is the equidistant curve J of initial cycloid1K1Using origin O as pivot, turn clockwise α Obtained after angle, the equidistant curve J of initial cycloid1K1Equation be:
Wherein, matrix
The equidistant curve EF of cycloid, is the equidistant curve E of initial cycloid1F1Using origin O as pivot, rotate counterclockwise Obtained after γ+ζ angles, the equidistant curve E of initial cycloid1F1Equation be:
Wherein, matrixR6For the sharp arc radius of third claw;
Angle γ is determined by below equation:
Wherein coordinate (x0,y0) be following two curves intersection point:
Angle ζ is determined by below equation:
Wherein coordinate (x1,y1) be following two curves intersection point:
By the outside pair-wise offset R of the equidistant curve AB of cycloid4, obtained equidistant curve is O with the center of circle, and radius is R1-R4's Round intersection point, is exactly the sharp circular arc BC of the first pawl center of circle (XBC,YBC), using the point as the center of circle, make radius for R4Circle, while with pendulum The equidistant curve AB and pawl tip circle arc CD of line are tangent, and point of contact is respectively:B points and C points, obtain the sharp circular arc BC of the first pawl;Second pawl The sharp circular arc DE center of circle (XDE,YDE) it is located at the center of circle for O, radius is R1-R5Circle on, and the center of circle (XDE,YDE) with center of circle O company Line, the angle with x positive axis is α+γ, using the point as the center of circle, makees radius for R5Circle, while with pawl tip circle arc CD and cycloid Equidistant curve EF is tangent, and point of contact is respectively:D points and E points, obtain the sharp circular arc DE of the second pawl;The equidistant curve JK of cycloid is outside Pair-wise offset R6, then by the inside pair-wise offset R of the envelope HI of line segment6, the intersection point of two obtained curves is exactly third claw point The circular arc IJ center of circle (XIJ,YIJ), using the point as the center of circle, make radius for R6Circle, it is equidistant with the envelope HI of line segment and cycloid Curve JK is tangent, and point of contact is respectively:I points and J points, obtain the sharp circular arc IJ of third claw;
More than:T-angle parameter, rad;R2- pitch radius, mm;R1- pawl tip circle arc radius, mm;R3- pawl bottom circular arc Radius, mm;And 2R2=R1+R3;R4,R5,R6- pawl point arc radius, mm;And R4=R5=R6;α, β, γ, ζ-angle, rad.
The building process of complete smooth straight pawl claw-type rotor profile:1. using O as origin, according to above equation, pitch circle is obtained Circular arc GH, initial segment envelope H1I1, the sharp circular arc IJ of third claw, the equidistant curve J of initial cycloid1K1, pawl bottom circular arc KA, The sharp circular arc BC of equidistant curve AB, the first pawl of cycloid, pawl tip circle arc CD, the sharp circular arc DE of the second pawl, the equidistant curve of initial cycloid E1F1With initial segment F2G2;2. by the equidistant curve J of initial cycloid1K1Using origin O as pivot, turn clockwise α angles Afterwards, the equidistant curve JK of cycloid is obtained;3. by the envelope H of initial segment1I1Using origin O as pivot, the α that turns clockwise+ After β angles, the envelope HI of line segment is obtained;4. by the equidistant curve E of initial cycloid1F1Using origin O as pivot, counterclockwise Rotate after γ+ζ angles, obtain cycloid EF;5. by initial segment F2G2Using origin O as pivot, rotate counterclockwise alpha+beta+γ angles After degree, line segment FG is obtained.
A kind of complete smooth straight pawl claw rotor, a kind of type of its molded lines of rotor as described in complete smooth straight pawl claw rotor Line is consistent.
A kind of claw vavuum pump, uses a kind of above-mentioned complete smooth straight pawl claw rotor.
A kind of claw compressor, uses a kind of above-mentioned complete smooth straight pawl claw rotor.
A kind of claw expanding machine, uses a kind of above-mentioned complete smooth straight pawl claw rotor.
The beneficial effects of the utility model are:
1. the claw rotor realizes the full engagement of pawl dorsal segment curve, except the equidistant curve AB of cycloid and the sharp circular arc of the first pawl Outside BC, all points are involved in engagement on remaining curve, solve the problem of claw rotor middle conductor not exclusively participates in engagement, keep away Exempt from the leakage caused by engagement not exclusively at the pawl back of the body, optimize the composition of claw molded line;
2. the claw rotor realize composition molded line it is entirely smooth, in the absence of rough point, improve the stress of claw rotor Characteristic and engagement sealing, improve performance and the life-span of claw rotor;
3. clearance volume during claw rotor work is reduced, reduces and uses power consumption, improve claw fluid machinery Operating efficiency.
Brief description of the drawings
Fig. 1 is the complete smooth straight initial molded lines of pawl claw rotor proposed.
Fig. 2 is the complete smooth straight pawl claw-type rotor profile figure proposed.
Fig. 3 is the meshing relation figure of 2 complete smooth straight pawl claw rotors proposed.
Fig. 4 is the engagement figure of 2 complete smooth straight pawl claw rotors proposed each curve at work.
In figure:AB is the equidistant curve of cycloid;BC is the sharp circular arc of the first pawl;CD is pawl tip circle arc;DE is the second pawl point circle Arc;EF is the equidistant curve of cycloid;FG is line segment;GH is pitch circle circular arc;HI is the envelope of line segment;IJ is third claw point circle Arc;JK is the equidistant curve of cycloid;KA is pawl bottom circular arc;1-left side of rotor claw rotor;2-right side of rotor claw rotor.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, be a kind of generating process of the molded line of complete smooth straight pawl claw rotor, it is straight according to each curved dies Deliver a child into each molded line:Pitch circle circular arc GH, initial segment envelope H1I1, the sharp circular arc IJ of third claw, the equidistant curve of initial cycloid J1K1, it is pawl bottom circular arc KA, the equidistant curve AB of cycloid, the sharp circular arc BC of the first pawl, pawl tip circle arc CD, the sharp circular arc DE of the second pawl, initial The equidistant curve E of cycloid1F1, initial segment F2G2
As shown in Fig. 2 be a kind of complete smooth straight pawl claw rotor, by 6 sections of circular arcs (BC, CD, DE, GH, IJ, KA), 3 sections The envelope (HI) of the equidistant curve (AB, EF, JK) of cycloid, 1 section of line segment (FG) and 1 section of line segment is formed by connecting, the pawl constituted Whole molded line of formula rotor are all smoothly connected.
By the equidistant curve J of the initial cycloid in Fig. 11K1Using origin O as pivot, turn clockwise after α angles, obtain The equidistant curve JK of cycloid into Fig. 2;By the envelope H of initial segment1I1Using origin O as pivot, the α that turns clockwise+ After β angles, the envelope HI of line segment is obtained;By initial segment F2G2Using origin O as pivot, rotate counterclockwise alpha+beta+γ angles After degree, line segment FG is obtained;By the equidistant curve E of initial cycloid1F1Using origin O as pivot, rotate counterclockwise γ+ζ angles Afterwards, the equidistant curve EF of cycloid is obtained.
The characteristics of claw-type rotor profile proposed is:The claw-type rotor profile is by circular arc, the equidistant curve of cycloid, line segment Constitute, rough tie point is not present in the claw-type rotor profile, i.e., connected in the absence of cusp, except cycloid with the envelope of line segment Outside equidistant curve AB and the sharp circular arc bc of the first pawl engagement, whole curves can be at a fully engaged.The claw thus proposed turns Son has higher sealing, improves performance, it is adaptable to the use field of higher rotation speed, elevated pressures and higher temperature Close, expand the application of claw compressor and claw vavuum pump.
The utility model solves the technical scheme that its technical problem used:According to the synchronization of claw rotor at work The incorgruous dual AC power characteristics of motion, according to the conjugation theory of engagement of molded line, determines the song engaged under the motion mode with circular arc conjugation Line is the equidistant curve of cycloid, obtains its curved dies, determines the relative position of the equidistant curve of circular arc and cycloid, is allowed to smooth Connection, obtains whole claw-type rotor profile.
As shown in figure 3, by the meshing relation figure of 2 complete smooth straight pawl claw-type rotor profiles proposed, intermeshing 2 claw-type rotor profiles it is identical, when working engagement, 2 claw rotors synchronize the motion of incorgruous dual AC power;Left side claw The sharp circular arc BC of the equidistant curve AB of the cycloid of rotor (rotor 1), the first pawl, pawl tip circle arc CD, the second pawl sharp circular arc DE, cycloid The sharp circular arc IJ of equidistant curve EF, line segment FG, pitch circle circular arc GH, the envelope HI of line segment, third claw, the equidistant curve JK of cycloid and Pawl bottom circular arc KA, respectively with the sharp circular arc bc of the first pawl, the equidistant curve ab of cycloid, the pawl bottom circle of right side claw rotor (rotor 2) Arc ka, the equidistant curve jk of cycloid, third claw sharp circular arc ij, line segment include line hi, pitch circle circular arc gh, line segment fg, cycloid Equidistant curve ef, the second pawl point circular arc de and pawl tip circle arc cd are meshed.
As shown in figure 4, by the engagement figure between 2 complete smooth straight pawl claw rotors proposed at work each curve, (a)~(i) angle of eccentricity in figure corresponding to each neighbor map is staggered 10 °;I.e. (a) figure is clockwise to claw rotor on the left of (b) figure 10 ° of rotation, 10 ° of right side claw rotor rotate counterclockwise;(b) figure turns clockwise 10 °, right side to claw rotor on the left of (c) figure 10 ° of claw rotor rotate counterclockwise;By that analogy.In (a) figure, envelope HI and the right side pawl of the line segment of left side claw rotor The line segment fg intermeshings of formula rotor;In (b), (c) and (d) figure, equidistant curve AB and the right side of the cycloid of left side claw rotor The sharp circular arc bc intermeshings of first pawl of side claw rotor, third claw point circular arc IJ and the right side claw rotor of left side claw rotor The equidistant curve ef of cycloid be meshed;In (c) and (d) figure, the equidistant curve JK of the cycloid of left side claw rotor and right side The second pawl point circular arc de of claw rotor is meshed;In (e) figure, the first pawl point circular arc BC and the right side pawl of left side claw rotor The equidistant curve ab of the cycloid of formula rotor is meshed;In (f) and (g) figure, the equidistant curve EF of the cycloid of left side claw rotor It is meshed with the third claw point circular arc ij of right side claw rotor;In (h) and (i) figure, line segment FG and the right side of left side claw rotor The envelope hi of the line segment of side claw rotor is meshed.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model Within enclosing.

Claims (5)

1. a kind of complete smooth straight pawl claw rotor, it, which constitutes molded line, includes:6 sections of circular arcs, the equidistant curve of 3 sections of cycloids, 1 section of line The envelope of section and 1 section of line segment, it is characterized in that:It is followed successively by counterclockwise since pitch circle:Pitch circle circular arc GH, the bag of line segment The sharp circular arc IJ of winding thread HI, third claw, the equidistant curve JK of cycloid, pawl bottom circular arc KA, the equidistant curve AB of cycloid, the first pawl point circle The sharp circular arc DE of arc BC, pawl tip circle arc CD, the second pawl, the equidistant curve EF of cycloid, line segment FG;Adjacent curve is smoothly connected, and one Rough tie point is not present in the composition molded line for planting complete smooth straight pawl claw rotor;Except the equidistant curve AB of cycloid and first Outside pawl point circular arc BC, all points are involved in engagement on remaining curve;Intermeshing two claw rotors:Left side claw rotor (rotor 1) is identical with right side claw rotor (rotor 2), and the equidistant curve AB of the cycloid of left side claw rotor (rotor 1), First pawl point circular arc BC, pawl tip circle arc CD, the sharp circular arc DE of the second pawl, the equidistant curve EF of cycloid, line segment FG, pitch circle circular arc GH, The sharp circular arc IJ of the envelope HI of line segment, third claw, the equidistant curve JK of cycloid, pawl bottom circular arc KA, respectively with right side claw rotor The sharp circular arc bc of first pawl of (rotor 2), the equidistant curve ab of cycloid, pawl bottom circular arc ka, the equidistant curve jk of cycloid, third claw point Circular arc ij, line segment include the sharp circular arc de of line hi, pitch circle circular arc gh, line segment fg, the equidistant curve ef of cycloid, the second pawl, pawl top Circular arc cd is meshed.
2. a kind of complete smooth straight pawl claw rotor according to claim 1, it is characterized in that:
1. pawl tip circle arc CD and the corresponding central angles of pawl bottom circular arc KA are equal, are α;
2. the envelope HI of line segment, is the envelope H of initial segment1I1Using origin O as pivot, turn clockwise alpha+beta angle After obtain, the envelope H of initial segment1I1Equation be:
Angle beta is determined by below equation:
Wherein, R1For pawl tip circle arc radius, R2For pitch radius, R5For the sharp arc radius of the second pawl;
3. the equidistant curve AB of cycloid equation is:
Wherein, matrixR4For the sharp arc radius of the first pawl;
4. the equidistant curve JK of cycloid, is the equidistant curve J of initial cycloid1K1Using origin O as pivot, turn clockwise α angles Obtained after degree, the equidistant curve J of initial cycloid1K1Equation be:
Wherein, matrix
5. the equidistant curve EF of cycloid, is the equidistant curve E of initial cycloid1F1Using origin O as pivot, rotate counterclockwise γ+ Obtained after ζ angles, the equidistant curve E of initial cycloid1F1Equation be:
Wherein, matrixR6For the sharp arc radius of third claw;
Angle γ is determined by below equation:
Wherein, coordinate (x0,y0) be following two curves intersection point:
Angle ζ is determined by below equation:
Wherein, coordinate (x1,y1) be following two curves intersection point:
6. by the outside pair-wise offset R of the equidistant curve AB of cycloid4, obtained equidistant curve is O with the center of circle, and radius is R1-R4Circle Intersection point, be exactly the sharp circular arc BC of the first pawl center of circle (XBC,YBC), using the point as the center of circle, make radius for R4Circle, while and cycloid Equidistant curve AB and pawl tip circle arc CD it is tangent, point of contact is respectively:B points and C points, obtain the sharp circular arc BC of the first pawl;Second pawl point The circular arc DE center of circle (XDE,YDE) it is located at the center of circle for O, radius is R1-R5Circle on, and the center of circle (XDE,YDE) with center of circle O line, Angle with x positive axis is α+γ, using the point as the center of circle, makees radius for R5Circle, while with pawl tip circle arc CD and cycloid etc. Tangent away from curve EF, point of contact is respectively:D points and E points, obtain the sharp circular arc DE of the second pawl;The equidistant curve JK of cycloid is outside etc. Away from skew R6, then by the inside pair-wise offset R of the envelope HI of line segment6, the intersection point of two obtained curves is exactly third claw point circle The arc IJ center of circle (XIJ,YIJ), using the point as the center of circle, make radius for R6Circle, envelope HI and the equidistant song of cycloid with line segment Line JK is tangent, and point of contact is respectively:I points and J points, obtain the sharp circular arc IJ of third claw;
More than:T-angle parameter, rad;R2- pitch radius, mm;R1- pawl tip circle arc radius, mm;R3- pawl bottom arc radius, mm;And 2R2=R1+R3;R4,R5,R6- pawl point arc radius, mm;And R4=R5=R6;α, β, γ, ζ-angle, rad.
3. a kind of claw vavuum pump, it is characterized in that:Use a kind of complete smooth straight pawl claw rotor as claimed in claim 1.
4. a kind of claw compressor, it is characterized in that:Use a kind of complete smooth straight pawl claw rotor as claimed in claim 1.
5. a kind of claw expanding machine, it is characterized in that:Use a kind of complete smooth straight pawl claw rotor as claimed in claim 1.
CN201621106230.7U 2016-10-09 2016-10-09 A kind of complete smooth straight pawl claw rotor Withdrawn - After Issue CN206487619U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621106230.7U CN206487619U (en) 2016-10-09 2016-10-09 A kind of complete smooth straight pawl claw rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621106230.7U CN206487619U (en) 2016-10-09 2016-10-09 A kind of complete smooth straight pawl claw rotor

Publications (1)

Publication Number Publication Date
CN206487619U true CN206487619U (en) 2017-09-12

Family

ID=59769064

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621106230.7U Withdrawn - After Issue CN206487619U (en) 2016-10-09 2016-10-09 A kind of complete smooth straight pawl claw rotor

Country Status (1)

Country Link
CN (1) CN206487619U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194728A (en) * 2016-10-09 2016-12-07 中国石油大学(华东) The most smooth a kind of straight pawl claw rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194728A (en) * 2016-10-09 2016-12-07 中国石油大学(华东) The most smooth a kind of straight pawl claw rotor

Similar Documents

Publication Publication Date Title
CN105240277B (en) Fully-smooth screw rotor of twin-screw vacuum pump
CN205388011U (en) Screw rotor of no acute angle cusp and twin screw vacuum pump thereof
CN205388015U (en) Twin screw vacuum pump's complete glossy screw rotor and vacuum pump thereof
CN203189267U (en) Conjugated internal-external cycloid involute-type rotor of roots vacuum pump
CN105317677B (en) A kind of screw rotor without acute angle cusp
CN105822548B (en) A kind of complete smooth claw rotor
CN104929942B (en) A kind of claw-type rotor profile of full engagement
CN206957921U (en) A kind of complete smooth screw rotor based on eccentric circle involute
CN102330688B (en) Claw-type rotor profile
CN106194728B (en) A kind of complete smooth straight pawl claw rotor
CN105332914B (en) A kind of complete smooth screw rotor
CN206487619U (en) A kind of complete smooth straight pawl claw rotor
CN106401958B (en) A kind of rotor molded line of screw vacuum pump
CN107023480B (en) A kind of complete smooth twin-screw liquid pump screw rotor
CN108757438A (en) A kind of complete smooth screw rotor and its design method of small enclosed volume
CN206017138U (en) A kind of oval arc-shaped roots rotor
CN206071869U (en) A kind of straight pawl claw rotor
CN106246539B (en) A kind of straight pawl claw rotor
CN106948863B (en) Full-smooth asymmetric double-claw rotor
CN106949053B (en) A kind of claw rotor including elliptic arc
CN206329493U (en) A kind of rotor molded line of screw vacuum pump
CN205638919U (en) Complete glossy claw formula rotor
CN206738155U (en) A kind of claw rotor for including elliptic arc
CN206860234U (en) A kind of complete double pawl rotors of smooth asymmetry
CN203867895U (en) Tooth profile of rotor of dry twin-screw compressor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20170912

Effective date of abandoning: 20180619