CN202073941U - Expansion coupling sleeve - Google Patents

Expansion coupling sleeve Download PDF

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Publication number
CN202073941U
CN202073941U CN201020689722XU CN201020689722U CN202073941U CN 202073941 U CN202073941 U CN 202073941U CN 201020689722X U CN201020689722X U CN 201020689722XU CN 201020689722 U CN201020689722 U CN 201020689722U CN 202073941 U CN202073941 U CN 202073941U
Authority
CN
China
Prior art keywords
ring
tapering
expansion
sides
coupling sleeve
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.)
Expired - Fee Related
Application number
CN201020689722XU
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Chinese (zh)
Inventor
叶笃孟
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 fine base industry Co., Ltd.
Original Assignee
ZHEJIANG JINGJI ELECTROMECHANICAL 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 ZHEJIANG JINGJI ELECTROMECHANICAL CO Ltd filed Critical ZHEJIANG JINGJI ELECTROMECHANICAL CO Ltd
Priority to CN201020689722XU priority Critical patent/CN202073941U/en
Application granted granted Critical
Publication of CN202073941U publication Critical patent/CN202073941U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an expansion coupling sleeve; a structure of the expansion coupling sleeve comprises a middle body, a front side ring and a rear side ring which are arranged at both sides of the middle body, wherein the front side ring and the rear side ring are respectively sheathed at both sides of the middle body; screw holes are arranged on the front side ring and the rear side ring; the front side ring, the rear side ring and the middle body are connected into a whole body by hexagonal screws in a cylindrical head which pass through the screw holes; the surfaces of inner holes of the front side ring and the back side ring, which are sheathed on the external surface of both sides of the middle body, are matched by adopting a circular conical surface; the taper surfaces of the inner holes of the front side ring and the back side ring are different in taper; the front taper surface is slightly smaller than the back taper surface in taper; the design structure is simple, reliable in working and convenient to dismantle; a solid through which coupling screws of the two side rings pass is milled on the middle body to form a plum-blossom shape; the coupling screws of the two side rings are not in contact with the middle body and are convenient to install and dismantle. The novel expansion coupling sleeve has relative small difference value between the pressure intensity of the unit area of the shaft and the pressure intensity of the unit area of a hub; the performance of the shaft to be coupled can be reduced; and the materials of the shaft are more economical.

Description

A kind of expansion coupling sleeve
Technical field
The utility model relates to expansion coupling sleeve, and specifically a kind of connection that is applicable to axle and parts on shaft is with the expansion coupling sleeve of transmitting torque, axial force or both combined stresses.
Background technique
Expansion coupling sleeve is called for short expansion set, and expansion set is linked with following several types: Z1, Z2, Z3, Z4, Z5, Z6, Z9, Z12 type expansion set.Expansion set is a pair of or several annular elements to fitting with the inside and outside conical surface of packing between axle and hub bore, produce the power that axially is pressed into by tighting a bolt, under the effect of axial force, inner conical drogue dwindles, external conical sleeve swells, make set of books form the interference combination with axis hole respectively, transmit the load of axial force, torque or the two compound action by the frictional force of interference generation.Be characterized in simple in structure, easily manufactured, cost is lower, and reliable operation, is safeguarded all easylier at mounting or dismounting, and transmitting torque is bigger.Expansion set is used more and more widely as a kind of new propeller boss Placement, wherein Z1, Z2, Z3, Z4, the standardization of Z5 type expansion set, and standard No. is GB5867-86.Z3, Z6, Z9, Z12 type expansion set are widely used in the basic driving component of a kind of advanced person of mechanical connection under the heavy load, and its standard No. is JB/T7934-1999.
The expansion set connection is connected with spline than interference fit, key to be compared, and mainly contain following characteristics: centering precision is good; Make and install simply, the axle of expansion set and the processing in hole are installed unlike interference fit, require high-precision manufacturing tolerances.Expansion set is installed is also need not heating, cooling or pressurized equipment, need only screw moment in accordance with regulations tighten and get final product, and easy to adjust, wheel hub can be adjusted to desired location easily on axle; Has good interchangeability, the easy disassembly of available standards instrument, convenient disassembly; Expansion set connects can bear heavy load, can be used for the not steady occasion of transmission, as quickening and braking; An expansion set is not enough, can also a plurality of series connection use; It is by friction driving that expansion set connects, and does not have the weakening of keyway to being coupled part, does not have relative movement, and expansion set is after tensioner, and the kinematic error of no clockwise and anticlockwise is applicable to accurate kinematic chain transmission; Expansion set connects insensitive to dirt; And the safety protection effect is arranged, and connection meetings such as keyway, pin damage axle and axle sleeve because of shearing stress, and expansion set relative slippage in postpartum can not damage connected piece when expansion set was bound up on overload, and mechanical part is shielded.
Z12 type expansion set is an expansion set commonly used in the heavy machinery standard, and each conical ring tapering is identical, and accuracy of alignment is higher, can transmit big load, also has foregoing advantage simultaneously.Z12 type expansion set basic structure (see figure 1), form with outer shroud and a plurality of socket cap screw (performance rate is 12.9 grades) of the identical internal taper hole in band both sides by two two identical interior rings of physical dimension, in ring outer conical surface and outer shroud internal conical surface the tapering face such as be, attachment screw connects ring in two by interior ring unthreaded hole, shortcoming is when the ring screw is worked in the binding two, stressed outer the expanding of outer annular conical surface part, intermediate portion shrinks, since machining error have a very easily unthreaded hole place of scratch outer ring body of screw, cause and install and dismounting inconvenience.It is φ 35-φ 500mm that Z12 type expansion set is coupled the shaft diameter scope, expansion set is 158-212MPa with axle junction plane upward pressure scope, with pressure range on the junction plane on the hub be 106-128MPa, pressure large percentage on the unit area on pressure and the hub on the unit area on the axle, be connected the axle performance than the hub superior performance many, the relative hub material of shaft material will be got well, and this is just higher relatively to the performance requirement of coupled axle, and shortcoming is to have improved user's manufacturing user cost.
The model utility content
(1) technical problem that will solve
The purpose of this utility model is the defective that exists at prior art, a kind of expansion coupling sleeve is provided, what solved that prior art exists because machining error exists the screw very easily unthreaded hole place of scratch outer ring body, causes and installs and dismounting inconvenience, poor performance, the high problem of cost.
(2) technological scheme
The technological scheme that its technical problem that solves the utility model adopts is: a kind of expansion coupling sleeve, its structure comprise the forward and backward side ring of intermediate and intermediate both sides; Described forward and backward side ring is enclosed within the both sides of intermediate respectively, and all offers screw hole on the forward and backward side ring and by the socket cap screw that passes wherein forward and backward side ring and intermediate are linked into an integrated entity; The outer surface that described forward and backward side ring bore area is enclosed within the intermediate both sides is that conical surface cooperates.
The tapering of the described preceding side ring bore area that is enclosed within the intermediate front side is less than the tapering of the back side ring bore area that is enclosed within the intermediate rear side; The conicity of the outer surface of described intermediate both sides matches with cover forward and backward side ring bore area tapering thereon respectively.
The tapering of side ring bore area is 1: 7 tapering before described; The tapering of back side ring bore area is 1: 6 tapering; The outer surface tapering that described intermediate front side cooperates with preceding side ring is 1: 7 tapering, and the intermediate rear side is 1: 6 tapering with the outer surface tapering that the back side ring cooperates.
The intermediate portion integral body of described intermediate excircle is open gear type or plum-shaped structure, does not contact mutually with intermediate with intermediate retention gap socket cap screw when the described socket cap screw that passes forward and backward side ring screw hole passes through gear type or quincunx intermediate excircle intermediate portion.
(3) beneficial effect
A kind of expansion coupling sleeve of the present utility model is compared with prior art, has following beneficial effect:
The utility model is by two side ring, intermediates that the identical hole taper of structural type is different, and a plurality of socket cap screws (performance rate is 12.9 grades) are formed.The inner conical surface of preceding side ring is 1: 7 tapering, the inner conical surface of back side ring is 1: 6 tapering, intermediate is that a side circumference is 1: 7 tapering face, the opposite side circumference is 1: 6 tapering face, side ring two conical surfaces respectively with the intermediate circumference on 1: 7 male cone (strobilus masculinus) and 1: 6 male cone (strobilus masculinus) of both sides cooperate the location, the front side is installed together with the direct and back side ring of a plurality of 12.9 grades of socket cap screws, 12.9 the level socket cap screw produces axial force when tightening, under responsive to axial force, make and produce swelling pressure between the inside and outside ring conical surface, axle and hub fit tightly and produce enough frictional force, with transmitting torque.Biconical surface structure can guarantee coupled diaxon accuracy of alignment when using, and can bear heavy load, can be used for the not steady occasion of transmission, as quickening and braking.The hole taper face cone degree of front and back two side rings is inequality, and the front side is slightly littler than rear side tapering, and this kind project organization is simple, and reliable operation is dismantled more convenient; Mill the entity of two side ring attachment screws by the place on the intermediate, become blossom type, two side ring attachment screws do not contact with intermediate, can not make the intermediate portion of bolt scratching scratch intermediate owing to the position error of processing, easy accessibility.During dismounting, dismounting socket head screw in preceding side ring top is uniform to withstand on the side ring of back, pulls down the back side ring, and preceding side ring top dismounting socket head screw is uniform to withstand on the plum blossom profile of intermediate, and preceding side ring separates with intermediate, dismantles more convenient.The novel expansion set of this kind is 128-170MPa with axle junction plane upward pressure scope, with pressure range on the junction plane on the hub be 120-161MPa, on the axle on the unit area on pressure and the hub on the unit area pressure ratio relative less, the performance that is coupled axle can reduce, shaft material is selected less expensive for use, has reduced user's manufacturing user cost.
The utility model has plurality of specifications for selecting for use, and transferable nominal torque is 1.3-1240KN.m, and shaft hole diameter is φ 35-φ 500mm.
The utility model maximum breakthrough in design is that the inner conical surface of preceding side ring is 1: 7 tapering, the inner conical surface of back side ring is 1: 6 tapering, intermediate is that a side circumference is 1: 7 tapering face, the opposite side circumference is 1: 6 tapering face, side ring two conical surfaces respectively with the intermediate circumference on 1: 7 male cone (strobilus masculinus) and 1: 6 male cone (strobilus masculinus) of both sides cooperate the location, the hole taper face cone degree of front and back two side rings is inequality, the front side is slightly littler than rear side tapering, this kind project organization is simple, and reliable operation is dismantled more convenient; Mill the entity of two side ring attachment screws by the place on the intermediate, become blossom type, two side ring attachment screws contacts with intermediate, and connecting when the ring screws are worked in two not can the scratch intermediate, easy accessibility.The novel expansion set of this kind, on the axle on the unit area on pressure and the hub on the unit area pressure ratio relative less, the performance that is coupled axle can reduce, shaft material is selected less expensive for use.In sum, the utility model expansion set has reduced user's manufacturing user cost, can be the user and brings great economic benefit.
Description of drawings
Fig. 1 is the structure scheme of erection of the heavy machinery standard expansion set Z12 basic model of prior art;
Fig. 2 is the structural representation of expansion coupling sleeve of the present utility model;
Structural representation when Fig. 3 is enclosed within dismounting for expansion coupling of the present utility model;
Fig. 4 is the assembling 3 dimensional drawing of expansion coupling sleeve of the present utility model.
Among the figure: 1, socket cap screw; 2, preceding side ring; 3, back side ring; 4, intermediate.
Embodiment
Next with reference to Figure of description to explaining below a kind of expansion coupling interplanting of the present utility model.
A kind of expansion coupling sleeve, its structure comprise the forward and backward side ring of intermediate and intermediate both sides; Described forward and backward side ring is enclosed within the both sides of intermediate respectively, and all offers screw hole on the forward and backward side ring and by the socket cap screw that passes wherein forward and backward side ring and intermediate are linked into an integrated entity; The outer surface that described forward and backward side ring bore area is enclosed within the intermediate both sides is that conical surface cooperates.The tapering of the described preceding side ring bore area that is enclosed within the intermediate front side is less than the tapering of the back side ring bore area that is enclosed within the intermediate rear side; The conicity of the outer surface of described intermediate both sides matches with cover forward and backward side ring bore area tapering thereon respectively.The tapering of side ring bore area is 1: 7 tapering before described; The tapering of back side ring bore area is 1: 6 tapering; The outer surface tapering that described intermediate front side cooperates with preceding side ring is 1: 7 tapering, and the intermediate rear side is 1: 6 tapering with the outer surface tapering that the back side ring cooperates.The intermediate portion integral body of described intermediate excircle is open gear type or plum-shaped structure, does not contact mutually with intermediate with intermediate retention gap socket cap screw when the described socket cap screw that passes forward and backward side ring screw hole passes through gear type or quincunx intermediate excircle intermediate portion.
(seeing Fig. 2, Fig. 3, Fig. 4), expansion coupling sleeve of the present utility model is made up of socket cap screw 1, preceding side ring 2 and back side ring 3, intermediate 4.The inner conical surface of preceding side ring 2 is 1: 7 tapering, the inner conical surface of back side ring 3 is 1: 6 tapering, intermediate 4 is to be 1: 7 tapering face on the circumference of front side, it on the rear side circumference 1: 6 tapering face, two side ring inner conical surfaces respectively with the intermediate circumference on 1: 7 male cone (strobilus masculinus) and 1: 6 male cone (strobilus masculinus) of both sides cooperate the location, play self-centering action.In the screw after the preceding a plurality of 12.9 grades of socket cap screws 1 of side ring 2 usefulness are screwed on side ring 3 circumference, the symmetry of intersecting about the use torque wrench during installation is tightened socket cap screw 1 successively, guarantee to reach the rated moment value, preceding side ring 2 back side rings 3 and intermediate 4 produce between magnitude of interference and installation shaft and hole by the conical surface and produce tension, finish propeller boss and connect, realized the effect of transmitting torque.During dismounting, earlier whole socket cap screws 1 are loosened several circles, being screwed into 12.9 grades of socket cap hexagon socket head cap screws 1 then after the dismounting on preceding side ring 2 sides in the screw of side ring 3 across directly withstands on the side entity of back side ring 3, pine back, top side ring 3, being screwed into 12.9 grades of socket cap hexagon socket head cap screws 1 again in the screw of the dismounting intermediate 4 on preceding side ring 2 sides across directly withstands on 4 the blossom type entity of intermediate, push up loose intermediate 4, make expansion set loosening and split out.Bilateral symmetry center with intermediate is the center, and preceding side ring, back side ring are contained in both sides respectively, and the swelling screw-driving is formed a whole set of expansion set.
The above embodiment is a kind of of the more preferably concrete mode of execution of the utility model, and common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in the protection domain of the present utility model.

Claims (3)

1. expansion coupling sleeve, its structure comprises the forward and backward side ring of intermediate and intermediate both sides; It is characterized in that: described forward and backward side ring is enclosed within the both sides of intermediate respectively, and all offers screw hole on the forward and backward side ring, and forward and backward side ring links into an integrated entity by socket cap screw and the intermediate that passes screw hole; The outer surface that described forward and backward side ring bore area is enclosed within the intermediate both sides is that conical surface cooperates.
2. a kind of expansion coupling sleeve according to claim 1 is characterized in that: the tapering of the described preceding side ring bore area that is enclosed within the intermediate front side is less than the tapering of the back side ring bore area that is enclosed within the intermediate rear side; The conicity of the outer surface of described intermediate both sides matches with cover forward and backward side ring bore area tapering thereon respectively.
3. a kind of expansion coupling sleeve according to claim 1 and 2 is characterized in that: the tapering of side ring bore area is 1: 7 tapering before described; The tapering of back side ring bore area is 1: 6 tapering; The outer surface tapering that described intermediate front side cooperates with preceding side ring is 1: 7 tapering, and the intermediate rear side is 1: 6 tapering with the outer surface tapering that the back side ring cooperates.
CN201020689722XU 2010-12-30 2010-12-30 Expansion coupling sleeve Expired - Fee Related CN202073941U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020689722XU CN202073941U (en) 2010-12-30 2010-12-30 Expansion coupling sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020689722XU CN202073941U (en) 2010-12-30 2010-12-30 Expansion coupling sleeve

Publications (1)

Publication Number Publication Date
CN202073941U true CN202073941U (en) 2011-12-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201020689722XU Expired - Fee Related CN202073941U (en) 2010-12-30 2010-12-30 Expansion coupling sleeve

Country Status (1)

Country Link
CN (1) CN202073941U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562833A (en) * 2010-12-30 2012-07-11 浙江精基机电有限公司 Expansion connecting sleeve
CN102996660A (en) * 2012-12-13 2013-03-27 宁夏天地西北煤机有限公司 Dual-pressing-ring expansion sleeve
CN105565050A (en) * 2016-02-19 2016-05-11 任超 Transmission roller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562833A (en) * 2010-12-30 2012-07-11 浙江精基机电有限公司 Expansion connecting sleeve
CN102996660A (en) * 2012-12-13 2013-03-27 宁夏天地西北煤机有限公司 Dual-pressing-ring expansion sleeve
CN105565050A (en) * 2016-02-19 2016-05-11 任超 Transmission roller

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SHANGHAI JINGJI INDUSTRY CO., LTD.

Free format text: FORMER OWNER: ZHEJIANG JINGJI ELECTROMECHANICAL CO., LTD.

Effective date: 20130606

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 325000 WENZHOU, ZHEJIANG PROVINCE TO: 200333 PUTUO, SHANGHAI

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20130606

Address after: 200333, No. 1628 Jinsha River Road, Putuo District, oasis 1, building 26, central, Shanghai

Patentee after: Shanghai fine base industry Co., Ltd.

Address before: 325000 C602 block, Binhai Park, Wenzhou economic and Technological Development Zone, Zhejiang

Patentee before: Zhejiang Jingji Electromechanical Co.,Ltd.

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: 20111214

Termination date: 20151230