CN102588426A - Cold-rolling flying shear synchronous connection shaft device and manufacture method - Google Patents

Cold-rolling flying shear synchronous connection shaft device and manufacture method Download PDF

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Publication number
CN102588426A
CN102588426A CN2012100737790A CN201210073779A CN102588426A CN 102588426 A CN102588426 A CN 102588426A CN 2012100737790 A CN2012100737790 A CN 2012100737790A CN 201210073779 A CN201210073779 A CN 201210073779A CN 102588426 A CN102588426 A CN 102588426A
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China
Prior art keywords
flange
axle
cushion block
boss
cold rolling
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CN2012100737790A
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Chinese (zh)
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CN102588426B (en
Inventor
胡立华
严国平
况群意
周玉倩
吕敏建
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Wisdri Engineering and Research Incorporation Ltd
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Wisdri Engineering and Research Incorporation Ltd
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Publication of CN102588426B publication Critical patent/CN102588426B/en
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Abstract

The invention relates to a cold-rolling flying shear synchronous connection shaft device and a manufacture method, and the device is fixed between frames on two sides of a cold-rolling flying shear. The device is characterized by comprising three sections of shafts which are connected in linear mode, and a second section of shaft is located in the middle of a first section of shaft and a second section of shaft and is connected with the shafts at two ends of the second section of shaft through flanges. By means of a synchronous connection method, the cold-rolling flying shear synchronous connection shaft device and the manufacture method change a single long shaft connection method into a mutual connection method among three sections of independent shafts, well solve the problem of maintenance difficulties caused by the single long shaft connection method under the condition of ensuring coaxiality and shearing strength and precision, and has good practical operability.

Description

Synchronous coupling shaft device of a kind of cold rolling flying shear and production method
Technical field
The present invention relates to a kind of synchronous connecting device and production method, especially a kind ofly be applicable to synchronous coupling shaft device of flying shear and production method in the metallurgical cold-rolling process.
Background technique
Cold rolling flying shear is one of equipment important on the rolling mill production line, be arranged in pinch roller after, be used for band the cutting off end to end of steel.It possesses fragmentation feature, and the quality of its service behaviour directly has influence on the manufacturing efficiency and the incision of product quality of rolling line.Along with the development of continuous rolling mill, flying shear has obtained application more and more widely.
When shearing broad specification band steel, in the traditional design, in order to guarantee the upper and lower knife rest ability synchronous operation of the frame left and right sides, the lazy-tongs that generally adopt a complete major axis to form are realized the synchronism of frame left and right sides mechanism.The major axis that this root is complete passes through bearing fixing on frame.In the engineering actual mechanical process, thisly realize that through single major axis there are following two tangible drawbacks in the mentality of designing of the synchronism of frame both sides mechanism: (1) major axis is long, is unfavorable for processing.In the actual engineering, because band steel specification possibly widely reach 2.5 meters, this moment, the length of major axis possibly reach 4 meters.Single major axis difficulty of processing is bigger, and precision is difficult to guarantee.(2) on-the-spot dismounting difficulty is unfavorable for regular maintenance.Because a major axis runs through whole frame; And on this major axis, be distributed with parts such as bearing, Sealing; In case be damaged in the course of the work or will be when changing to certain part of frame one side (even a Sealing); Must left and right sides frame be opened simultaneously, and then the part of appointment is changed, the dismantlement work amount is bigger.And each change accomplish install again major axis and on part the time, must carry out a centering again and detect.Therefore, the Placement of this single major axis form is unfavorable for the regular maintenance of cold rolling flying shear, and has seriously influenced the proper functioning of flying shear, has reduced the throughput of cold rolling processing line.
Summary of the invention
The technical problem that the present invention will solve is, remedies the deficiency of existing cold rolling flying shear lazy-tongs design, and synchronous coupling shaft device of a kind of cold rolling flying shear and production method are provided, and realizes the quick service of cold rolling flying shear lazy-tongs, quick change and proof strength and precision.
The present invention adopts following technological scheme for solving the problems of the technologies described above:
The synchronous coupling shaft device of cold rolling flying shear is fixed between the cold rolling flying shear machine frame at two sides; It is characterized in that: mainly comprise three sections axles that are in line and connect and be synchronized with the movement; Second section axle is positioned at the centre of first section axle and the 3rd section axle and spool being connected through flange and two ends.
By technique scheme, the inner of first section axle and the 3rd section axle all is connected an outer end boss; Second section axle two ends all is connected with an inner boss; Described outer end boss fits with inner boss and is connected fixingly, and on the faying surface of outer end boss and inner boss, positioning device is set; The tubular cushion block land of the outside sheathed tape spool shoulder in the outer end of outer end boss; The shaft shoulder end face of cushion block land is concordant with the end face of flange; Place flat cushion block between the interior edge face of the end face of flange and first section axle or the 3rd section axle, flat cushion block is connected with the cushion block land to be fixed and the shaft shoulder formation gap of the inner of the exterior edge face of cushion block and first section axle or the 3rd section axle.
By technique scheme, cushion block integral body is flat circular, by constituting at interval between two semicircular ring parts up and down; Cushion block up and down two semicircular ring partly links together with the shaft shoulder of corresponding cushion block land separately.
By technique scheme, the outer end of outer end boss is outside through welding or the sheathed described cushion block land of degree of depth interference fit.
By technique scheme, described outer end boss is connected through second bolt assembly with inner boss to be fixed, and second bolt assembly is an articulation cellular type bolt group.
By technique scheme, first section axle and the 3rd section axle are connected with separately boss through the key Placement; Second section axle is connected with the boss at two ends through welding manner or key Placement; When key connected, each key all was arranged on the end that flange has the shaft shoulder.
By technique scheme, described positioning device is that the faying surface upper edge of a plurality of locating studs boss and inner boss in the outer end circumferentially is uniformly distributed with.
By technique scheme, cushion block links together through many groups first bolt assemblies and cushion block land.
Make the method for the synchronous coupling shaft device of above-mentioned cold rolling flying shear, it is characterized in that specifically may further comprise the steps:
The first step is processed each and flange attachment portion; And flange and cushion block land assembled;
(1) at first, first section axle, second section axle and the 3rd section axle are processed into blank shape;
(2) will carry out fine finishing by predefined processing request with the end that first flange, second flange, the 3rd flange and the 4th flange are connected with keyway;
(3) first flanges and second flange, the 3rd flange and the 4th flange match in twos and carry out fine finishing, and through second bolt assembly first flange are connected with second flange, the 3rd flange and the 4th flange;
(4) processing cushion block land;
(5) with the cushion block land through the welding or degree of depth interference fit closely links together with first flange and the 4th flange respectively;
In second step, carry out fine finishing, the fine finishing cushion block to assembling integral body;
With first section axle, second section axle and the 3rd section axle respectively with each flange link together constitute whole; After this integral body carried out fine finishing by the preset processing request of integral body, measure the distance of the first section axle left end shaft shoulder and the first flange right side, the 3rd section axle right-hand member shaft shoulder the 4th flange left side;
Machining accuracy by setting is carried out fine finishing to cushion block, and guarantees to have micro-gap between cushion block end face and each shaft shoulder; One side this gap can make cushion block put into like a cork between the first section axle and first flange and reach between the 3rd section axle and the 4th flange, plays the effect of spacer ring, can play the effect of transferring the crack to compensate to bearing on the other hand;
The 3rd step was respectively charged into two-part about the cushion block in the space, with first bolt assembly cushion block and cushion block land was closely linked together then; Again to needing accurately machined position to specify requirement to carry out fine finishing on first section axle, second section axle and the 3rd section axle, till the processing request that reaches appointment by preset;
At last, after inspection reaches processing request, on the faying surface of first flange and second flange, the 3rd flange and the 4th flange, bore positioning hole, and squeeze into locating stud; Respectively locating stud and second bolt assembly are numbered guaranteeing after for convenience detach that former state installs, thereby guarantee the precision of installing again.
With respect to existing technology, the present invention has following beneficial effect:
(1) the present invention is through synchronous Placement, the Placement of single major axis become body become three sections independently interconnective modes of axle, and processing and manufacturing difficulty is little, installs easy to assemblyly, and the scene is workable.
(2) relative traditional design, the present invention can effectively solve the requirement of the local part of field replacement quickly, can be issued to the working environment requirement of quick service quick change in the requirement that guarantees installation precision.
(3) three sections little axles through splitting, one-sided dismounting construction has greatly reduced the labor intensity of operation element easily, and has improved the efficiency of work conscientiously, and safe and reliable.
(4) the present invention has versatility well, for similar structure, can prolong by this method and use and promote, and has good universality and operability.
Description of drawings:
Fig. 1 is the synchronous coupling shaft equipments overall structure of the cold rolling flying shear schematic representation of implementing according to the present invention;
Fig. 2 is the enlarged view of overlooking of cushion block.
Fig. 3 is the A-A cut-away enlarged view of cushion block among Fig. 2.
Among the figure: first section axle of 1-; The 2-cushion block; 3-cushion block land; 4-first bolt assembly; 5-first flange; 6-second bolt assembly; 7-second flange; Second section axle of 8-; 9-the 3rd flange; 10-the 4th flange; The 3rd section axle of 11-; 12-first key; 13-second key; The 14-triple bond; The 15-locating stud; The 16-quadruple linkage.
Embodiment:
Below in conjunction with embodiment and accompanying drawing the present invention is described further, but does not limit the present invention.
Accompanying drawing 1 is depicted as the synchronous coupling shaft device of implementing according to the present invention of cold rolling flying shear, is fixed between the cold rolling flying shear machine frame at two sides; Mainly comprise component such as first section axle 1, cushion block 2, cushion block land 3, first flange 5, second flange 7, second section axle 8, the 3rd flange 9, the 4th flange 10, the 3rd section axle 11 and locating stud 15.
First section axle 1 links to each other with first flange 5 through first key 12; Second section axle 8 links to each other with the 3rd flange 9 with second flange 7 respectively with triple bond 14 through second key 13, and certain second section axle 8 also can be connected as a single entity with second flange 7 and the 3rd flange 9 respectively through welding manner.The 3rd section axle 11 links to each other with the 4th flange 10 through quadruple linkage 16.Each key all is arranged on the end that flange has the shaft shoulder.First flange 5 and second flange 7 link together through second bolt assembly 6, and the 3rd flange 9 and the 4th flange 10 link together through second bolt assembly 6.Second bolt assembly 6 is articulation cellular type bolt group, can bear certain tangential shearing stress on the one hand, mainly is on the other hand to guarantee that the major axis of being made up of three sections minor axises has good coaxality, so that coupling shaft can accurately be located synchronously.First flange 5 and second flange, 7 applying end faces and the 3rd flange 9 and the 4th flange 10 applying end faces are joined respectively and are drilled with three locating studs 15, mainly play positioning action, guarantee the connection precision of this synchronous coupling shaft.Further, said three locating studs 15 circumferentially are uniformly distributed with in each faying surface upper edge.
Cushion block land 3 is for having the tubular of the shaft shoulder; The barrel of two cushion block lands 3 is placed in the outside of first flange 5 and the 4th flange 10 respectively; Its Connecting format can be Type of Welding or degree of depth interference fit, guarantees that cushion block land 3 does not separate with the 4th flange 10 with first flange 5 to get final product in movement process.
Cushion block 2 is processed into flat circular, and along the diameter of annulus it is partly dissectd and to cut processing, makes between upper and lower two semicircular ring part of cushion block and leaves certain clearance t, and clearance t is 1mm-3mm, shown in Fig. 2 and 3.The purpose that cushion block 2 is processed into semicircular ring mainly is the convenient dismounting of on axle, carrying out.Cushion block 2 upper and lower two semicircular ring partly link together through the shaft shoulder of 5 group of first bolt assembly 4 with cushion block land 3 separately; The end face of end face of cushion block 2 and the shaft shoulder of cushion block land 3 part is fitted; The outside, other end of cushion block 2 is the shaft shoulder of axle (1,11), and has micro-gap between this end face of assurance cushion block 2 and each shaft shoulder; One side this gap can make cushion block 2 put into like a cork between the first section axle 1 and first flange 5 and reach between the 3rd section axle 11 and the 4th flange 10, plays the effect of spacer ring, can play the effect of transferring the crack to compensate to bearing on the other hand.First bolt assembly 4 is the bolt Connecting format of common screw, only plays interconnect function, does not bear tangential shearing stress.
On the faying surface of first flange 5 and second flange 7, the 3rd flange 9 and the 4th flange 10, be parallel to shaft centre line and bore positioning hole, squeeze into locating stud 15 in the positioning hole.
In the foregoing description, first section axle 1 can be identical with the 3rd section axle 11; Simultaneously, described first flange 5 is identical with the 4th flange 10, and described second flange 7 is identical with the 3rd flange 9.
During processing and fabricating, can adopt segmentation to carry out:
The first step is processed each and flange attachment portion; And flange and cushion block land assembled.
(1) at first, first section axle 1, second section axle 8 and the 3rd section axle 11 are processed into blank shape.
(2) will carry out fine finishing by given processing request with the end (also promptly containing shaft shoulder part) that first flange 5, second flange 7, the 3rd flange 9 and the 4th flange 10 are connected with keyway;
(3) first flanges 5 and second flange 7, the 3rd flange 9 and the 4th flange 10 match in twos and carry out fine finishing, and through second bolt assembly 6 first flange 5 are connected with the 4th flange 10 with second flange 7, the 3rd flange 9;
(4) processing cushion block land 3;
(5) with cushion block land 3 through the welding or degree of depth interference fit closely links together with first flange 5 and the 4th flange 10 respectively.
In second step, carry out fine finishing, fine finishing cushion block 2 to assembling integral body.
First section axle 1, second section axle 8 and the 3rd section axle 11, first flange 5, second flange 7, the 3rd flange 9 and the 4th flange 10 are interconnected through first key 12, second key 13, triple bond 14, quadruple linkage 16 respectively; After this integral body carried out fine finishing by whole processing request, measure the distance of first section axle 1 left end shaft shoulder and first flange, 5 right sides, the 3rd section axle 11 right-hand member shaft shoulders the 4th flange 10 left sides; Machining accuracy by setting is carried out fine finishing to cushion block 2, and guarantees to have micro-gap between cushion block 2 end faces and each shaft shoulder; One side this gap can make cushion block 2 put into like a cork between the first section axle 1 and first flange 5 and reach between the 3rd section axle 11 and the 4th flange 10, plays the effect of spacer ring, can play the effect of transferring the crack to compensate to bearing on the other hand.
The 3rd step was respectively charged into cushion block 2 upper and lower two-part in the space, with first bolt assembly 4 cushion block 2 and cushion block land 3 was closely linked together then; Carry out fine finishing on request to carrying out accurately machined part (like surface roughness of corresponding bearing mounting point on keyway, the axle etc.) on first section axle 1, second section axle 8 and the 3rd section axle 11 again, till the processing request that reaches appointment.
At last, after inspection reaches processing request, on the faying surface of first flange 5 and second flange 7, the 3rd flange 9 and the 4th flange 10, bore positioning hole vertically, and squeeze into locating stud 15.Respectively locating stud 15 and second bolt assembly 6 are numbered guaranteeing after for convenience detach that former state installs, thereby guarantee the precision of installing again.
When needs are changed the local part (like the lip-type packing on the first section axle 1 in left side) of flying shear one side; The flange attachment portion of this side is taken apart; Detailed process is: cold rolling flying shear frame left side case lid is opened; Earlier first bolt assembly 4 is unclamped in this side then, then cushion block 2 is pounded out, respectively its upper and lower both sides from first section axle 1 are taken out; Again second bolt assembly 6 on first flange 5 and second flange 7 is unclamped; Behind numbering taking-up second bolt assembly 6; With first flange 5 to the pulling of first section axle 1 direction after between first flange 5 and second flange 7 enough gaps being arranged, again with first section axle 1 and on each component from the case lid that open in the frame left side, winch to the replacing stand together.Can first flange 5 be taken out from first section axle, 1 a continuous end in case of necessity again first section axle, 1 relevant component are changed.
Certainly during the local part in the middle of needs are changed flying shear, also can respectively first flange 5 and second flange be opened in 7 minutes, or the 3rd flange 9 and the 4th flange were opened in 10 minutes by above-mentioned method of taking a side flange attachment portion apart; Afterwards, second section axle 8, second flange 7 and the 3rd flange 9 integral body are hung away, again shaft part and the remaining shaft portion of flange or left side or right side that hangs away keeped in repair or change component.
Above embodiment only supplies to explain the present invention's usefulness, but not limitation of the present invention, the technician in relevant technologies field; Under the situation that does not break away from the spirit and scope of the present invention; Can also make various conversion or modification, so all technological schemes that are equal to, all fall into protection scope of the present invention.

Claims (10)

1. the synchronous coupling shaft device of cold rolling flying shear is fixed between the cold rolling flying shear machine frame at two sides; It is characterized in that: mainly comprise three sections axles that are in line and connect and be synchronized with the movement; Second section axle is positioned at the centre of first section axle and the 3rd section axle and spool being connected through flange and two ends.
2. the synchronous coupling shaft device of cold rolling flying shear according to claim 1 is characterized in that: the inner of first section axle and the 3rd section axle all is connected an outer end boss; Second section axle two ends all is connected with an inner boss; Described outer end boss fits with inner boss and is connected fixingly, and on the faying surface of outer end boss and inner boss, positioning device is set; The tubular cushion block land of the outside sheathed tape spool shoulder in the outer end of outer end boss; The shaft shoulder end face of cushion block land is concordant with the end face of flange; Place flat cushion block between the interior edge face of the end face of flange and first section axle or the 3rd section axle, flat cushion block is connected with the cushion block land to be fixed and the shaft shoulder formation gap of the inner of the exterior edge face of cushion block and first section axle or the 3rd section axle.
3. the synchronous coupling shaft device of cold rolling flying shear according to claim 2 is characterized in that: by technique scheme, cushion block integral body be flat circular, by about two semicircular ring keep at a certain distance away between partly and constitute; Cushion block up and down two semicircular ring partly links together with the shaft shoulder of corresponding cushion block land separately.
4. according to claim 2 or the synchronous coupling shaft device of 3 described cold rolling flying shears, it is characterized in that: the outer end of outer end boss is outside through welding or the sheathed described cushion block land of degree of depth interference fit.
5. the synchronous coupling shaft device of cold rolling flying shear according to claim 4 is characterized in that: described outer end boss is connected through second bolt assembly with inner boss to be fixed, and second bolt assembly is an articulation cellular type bolt group.
6. the synchronous coupling shaft device of cold rolling flying shear according to claim 1 is characterized in that: first section axle and the 3rd section axle are connected with separately boss through the key Placement; Second section axle is connected with the boss at two ends through welding manner or key Placement; When key connected, each key all was arranged on the end that flange has the shaft shoulder.
7. according to claim 2 or the synchronous coupling shaft device of 3 or 5 described cold rolling flying shears, it is characterized in that: first section axle and the 3rd section axle are connected with separately boss through the key Placement; Second section axle is connected with the boss at two ends through welding manner or key Placement; When key connected, each key all was arranged on the end that flange has the shaft shoulder.
8. the synchronous coupling shaft device of cold rolling flying shear according to claim 7 is characterized in that: described positioning device is that the faying surface upper edge of a plurality of locating studs boss and inner boss in the outer end circumferentially is uniformly distributed with.
9. according to claim 2 or the synchronous coupling shaft device of 3 or 5 or 8 described cold rolling flying shears, it is characterized in that: cushion block links together through many groups first bolt assemblies and cushion block land.
10. make the method for one of the claim 1-9 synchronous coupling shaft device of said cold rolling flying shear, it is characterized in that specifically may further comprise the steps:
The first step is processed each and flange attachment portion; And flange and cushion block land assembled;
(1) at first, first section axle, second section axle and the 3rd section axle are processed into blank shape;
(2) will carry out fine finishing by predefined processing request with the end that first flange, second flange, the 3rd flange and the 4th flange are connected with keyway;
(3) first flanges and second flange, the 3rd flange and the 4th flange match in twos and carry out fine finishing, and through second bolt assembly first flange are connected with second flange, the 3rd flange and the 4th flange;
(4) processing cushion block land;
(5) with the cushion block land through the welding or degree of depth interference fit closely links together with first flange and the 4th flange respectively;
In second step, carry out fine finishing, the fine finishing cushion block to assembling integral body;
With first section axle, second section axle and the 3rd section axle respectively with each flange link together constitute whole; After this integral body carried out fine finishing by the preset processing request of integral body, measure the distance of the first section axle left end shaft shoulder and the first flange right side, the 3rd section axle right-hand member shaft shoulder the 4th flange left side;
Machining accuracy by setting is carried out fine finishing to cushion block, and guarantees to have micro-gap between cushion block end face and each shaft shoulder; One side this gap can make cushion block put into like a cork between the first section axle and first flange and reach between the 3rd section axle and the 4th flange, plays the effect of spacer ring, can play the effect of transferring the crack to compensate to bearing on the other hand;
The 3rd step was respectively charged into two-part about the cushion block in the space, with first bolt assembly cushion block and cushion block land was closely linked together then; Again to needing accurately machined position to specify requirement to carry out fine finishing on first section axle, second section axle and the 3rd section axle, till the processing request that reaches appointment by preset;
At last, after inspection reaches processing request, on the faying surface of first flange and second flange, the 3rd flange and the 4th flange, bore positioning hole, and squeeze into locating stud; Respectively locating stud and second bolt assembly are numbered guaranteeing after for convenience detach that former state installs, thereby guarantee the precision of installing again.
CN201210073779.0A 2012-03-20 2012-03-20 Cold-rolling flying shear synchronous connection shaft device and manufacture method Active CN102588426B (en)

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Application Number Priority Date Filing Date Title
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CN102588426B CN102588426B (en) 2014-04-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102865289A (en) * 2012-09-26 2013-01-09 合肥波林新材料有限公司 Conveniently-assembled combined shaft
CN102873518A (en) * 2012-10-26 2013-01-16 重庆赛力盟电机有限责任公司 Process of machining reamed holes on flange type coupling
CN105196047A (en) * 2015-09-30 2015-12-30 南车南京浦镇车辆有限公司 Two-workpiece positioning installation method for rail vehicle
CN108799346A (en) * 2018-06-11 2018-11-13 周陈敬 A kind of split-type axial direction attachment device
CN110193703A (en) * 2019-06-19 2019-09-03 哈尔滨汽轮机厂有限责任公司 A kind of high-precision processing method of connecting shaft

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073742A (en) * 1973-11-05 1975-06-18
CN201124556Y (en) * 2007-09-27 2008-10-01 宁波海太机械集团有限公司 Screw rod connecting device of injection molding machine
CN201475182U (en) * 2009-07-31 2010-05-19 良机实业股份有限公司 Rotating shaft coupling device of windmill device of cooling tower
CN202531618U (en) * 2012-03-20 2012-11-14 中冶南方工程技术有限公司 Synchronous connecting shaft device for cold rolling flying shear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073742A (en) * 1973-11-05 1975-06-18
CN201124556Y (en) * 2007-09-27 2008-10-01 宁波海太机械集团有限公司 Screw rod connecting device of injection molding machine
CN201475182U (en) * 2009-07-31 2010-05-19 良机实业股份有限公司 Rotating shaft coupling device of windmill device of cooling tower
CN202531618U (en) * 2012-03-20 2012-11-14 中冶南方工程技术有限公司 Synchronous connecting shaft device for cold rolling flying shear

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102865289A (en) * 2012-09-26 2013-01-09 合肥波林新材料有限公司 Conveniently-assembled combined shaft
CN102873518A (en) * 2012-10-26 2013-01-16 重庆赛力盟电机有限责任公司 Process of machining reamed holes on flange type coupling
CN102873518B (en) * 2012-10-26 2015-07-22 重庆赛力盟电机有限责任公司 Process of machining reamed holes on flange type coupling
CN105196047A (en) * 2015-09-30 2015-12-30 南车南京浦镇车辆有限公司 Two-workpiece positioning installation method for rail vehicle
CN108799346A (en) * 2018-06-11 2018-11-13 周陈敬 A kind of split-type axial direction attachment device
CN108799346B (en) * 2018-06-11 2020-11-03 义乌市鼎莎针织有限公司 Split formula axial connecting device
CN110193703A (en) * 2019-06-19 2019-09-03 哈尔滨汽轮机厂有限责任公司 A kind of high-precision processing method of connecting shaft

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