CN103722355A - Method for assembling duplicate gear for roller of seamless steel tube cold rolling mill - Google Patents
Method for assembling duplicate gear for roller of seamless steel tube cold rolling mill Download PDFInfo
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- CN103722355A CN103722355A CN201310740329.7A CN201310740329A CN103722355A CN 103722355 A CN103722355 A CN 103722355A CN 201310740329 A CN201310740329 A CN 201310740329A CN 103722355 A CN103722355 A CN 103722355A
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- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
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Abstract
A method for assembling a duplicate gear for a roller of a seamless steel tube cold rolling mill comprises the following steps that firstly, a gear is prepared, an inner hole and a tooth profile of the gear are cleaned and wiped, burrs are grinded, and a key groove is polished, detection is carried out, and the inner hole of the gear, the shaft neck of a long-handle gear, the width of the key groove and tooth profile angle data are respectively measured; secondly, preparation is made for assembling, the gear is heated, the gear with z equal to 26 is placed into an electric furnace to be heated for 30-45 minutes, the bottom of the long-handle gear, namely the end face of the tooth profile, is wiped clean, the long-handle gear is vertically placed on a verifying panel, and the two side faces, namely the tooth outlines, of the involute of the tooth profile of the gear at the starting point are arranged outwards and face an operator; thirdly, the gear is assembled; fourthly, the gear is checked; fifthly, a positioning key is assembled in a matched mode; sixthly, the gear is put in storage. The method is reasonable in technology, easy and convenient to operate, safe, reliable, practical, efficient, high in error correcting precision and capable of effectively improving the assembling precision of the duplicate gear, operation time is shortened, the assembling time is lower than or equal to 3 minutes, the precision can reach to 0.01-0.03mm, and the reworking rate is zero.
Description
Technical field
The present invention relates to the cold rolling production equipment of seamless steel pipe, refer in particular to the assembly method of a kind of seamless steel pipe cold-rolling mill roll duplicate gear, be applicable to the accurate adjustment of roll device duplex spur gear wheel used.
Background technology
Gear is common machine components, by the profile of tooth on wheel rim, engage continuously and realize the function of transmitting motion and power, being generally used for more short-range motion (or power) transmits, common gear has spur gear wheel, cylindric spiral gear, helical gear, straight bevel gear, spiral bevel gear, tooth bar, worm gear etc., gear can make single gear, also can make the gear train of multiple gear compositions, according to different use occasions and needs, select corresponding gear, the duplicate gear that seamless steel pipe cold-rolling mill roll device is used is spur gear wheel.
Seamless steel pipe is common metallurgical metallic article, cold rolling is the major way of seamless steel pipe cold deformation processing, two roller cold-rolling pilger mills are the cold rolling production equipments of widely used seamless steel pipe, unit such as rolling mechanism, main drive gear, feeding slew gear, Shou Liao mechanism, hydraulic mechanism, lubricating structure, intermediate connecting mechanism, plug slew gear, electric control systems, consist of; Wherein rolling mechanism is by installation compositions such as support (containing slideway, tooth bar, slide plate, lathe bed), work housing (containing skate apparatus), rolls, for seamless steel pipe is carried out to cold deformation processing.
The support lathe bed of rolling mechanism is arranged in concrete foundation, and slideway is arranged on lathe bed bottom, and tooth bar is arranged on lathe bed both sides, and the both sides that slide plate is arranged on respectively lathe bed are 90 degree, work housing is arranged on support slideway, by skate apparatus and the laminating of support slideway, and side shirt edge and the laminating of support slide plate under frame, roll device is divided into topping roll, bottom roll two overlaps relatively independent constructional device, wherein topping roll is comprised of elements such as roll shaft, bearing block, gear, rolling bearing, locating ring, adjustment packing ring, positioning keys, and bottom roll is comprised of elements such as roll shaft, bearing block, gear train (duplicate gear), rolling bearing, locating ring, adjustment packing ring, positioning keys, upper and lower roll building block is complete to be arranged in work housing, during rolling, main drive gear transmission outputting power, work housing is under main drive gear driven axle connecting rod drives, do reciprocal horizontal movement, now bottom roll is as drive roll, by engaging of roll shaft two ends gear trains (duplicate gear) outboard gears (long handle gear) and support driving rack, horizontal reciprocating movement is transformed into rotatablely moving of roll, and engaging by roll shaft two ends gear trains (duplicate gear) internal gear and topping roll gear, rotary power is exported, drive topping roll to do synchronous rotary motion, the rolling deformation processing of realization to seamless steel tube blank, therefore, improve the assembly precision of roller gear, to extending the service life of roll device, the rolling quality that improves seamless steel pipe plays a key effect.
Due to structure and the operating characteristic of roll device, determined that the requirement of roll device assembly precision is high; The gear that current two roller cold-rolling pilger mill roll devices are used, is straight spur gear, and wherein according to the difference of drives structure, drive roll has plenty of bottom roll (russian Х П Т series rolling mill), has plenty of topping roll (domestic LG series rolling mill); What driven roll was used is two pinions, and what drive roll device was used is two pinion groups (duplicate gear); Gear and gear train are arranged on respectively the two ends of roll roll shaft, wherein gear train (duplicate gear) plays double action, on the one hand engaging by outside profile of tooth and support tooth bar, the horizontal movement of work housing is converted to rotatablely moving of drive roll, engaging by inner side profile of tooth and driven roll gear on the other hand, drive driven roll to do synchronous rotary motion, therefore the assembly precision of duplex-gear wheels, directly have influence on the kinematic accuracy of a whole set of roll device, and closely related with rolling accuracy, the quality of seamless steel pipe.
Take Х П Т-55 cold pilger mill as example, drive roll is bottom roll, and driven roll is topping roll; The duplicate gear that its bottom roll device is used is by two number of teeth differences, straight spur gear that modulus is identical, wherein outside (long handle gear) modulus m=15, number of teeth z=25, inboard gear modulus m=15, number of teeth z=26, forms by temperature differential method assembled orientation, adopt interference fit, flat key location; Form two gears of duplicate gear, the number of teeth differs 1, therefore reference diameter is all not identical with the outside diameter of gear, and must guarantee to overlap in when assembling in starting point tooth-formation of gear involute two sides (flank profil), so just can guarantee that the Synchronous Transmission precision of the duplicate gear of bottom roll both sides and support tooth bar, topping roll gear meets the technical requirement of equipment; Conventionally the assembly precision of duplicate gear is checked the registration of starting point tooth-formation of gear involute two sides (flank profil) exactly, error amount D is at 0～0.06mm, therefore in roll assembling, the assembling of duplicate gear is a difficult point, is also a crucial operation control point.
The assembling mode of the duplicate gear that bottom roll device is used is at present that temperature differential method assembled orientation and an angle of 90 degrees chi are measured adjustment, that is: utilize firing equipment that the gear of z=26 is heated to certain temperature, after bore expanded by heating, by its assembled orientation on the axle journal of the long handle gear of z=25; Utilize 90 ° of angle squares, by the tooth top plane vertical line of measuring two gears, overlap, and timely rotary fine adjustment, realize the precision assembling of duplicate gear, its operation technique is:
1. assembling is prepared:
Cleaning gear: cleaning, wiping bore and profile of tooth, repair burr, reconditioning keyway etc.; Check: the respectively data such as the axle journal of prototype gear endoporus, long handle gear, width of keyway, profile angle;
2. gear assembling:
A) gear heating: the gear of z=26 is put into electric furnace and heat, the time is about 30～45 minutes;
B) Work tool is prepared: high-ranking officers' surface plate is placed on check job platform, wiped clean, and an angle of 90 degrees chi is standby;
C) holding gears: by long handle gear bottom (profile of tooth end face) wiped clean, be vertically placed on verification flat board, starting point tooth-formation of gear involute two sides (flank profil) are placed outwardly;
D) assembling gear: the gear after heating is transported to verification platform top, after wiping endoporus, by the endoporus assembled orientation of z=26 gear on the long handle gear axle journal of z=25;
E) adjust registration: adopt an angle of 90 degrees chi, by the tooth top plane vertical line of measuring two gears, overlap, and timely rotary fine adjustment, until meet technical requirement;
F) place counterweight: at z=26 gear top, place counterweight (preventing that cooling backgear is to top offset);
3. gear checking: after duplicate gear is cooling, adopt an angle of 90 degrees chi, by measuring the tooth top plane vertical line registration of two gears, check assembly precision, the needs that do not meet precision do over again (duplicate gear is torn on top open, ressembles);
4. manufacture positioning key: according to the actual conditions of duplicate gear positioning spline, manufacture positioning key (generally because of reasons such as mismachining tolerance, rigging errors, keyway can be offset) and install;
5. warehouse-in: according to actual needs, select warehouse-in place or be directly assemblied on roll and use.
There is some problems in above-mentioned assembly technology:
1. assembly precision is not high: due to the reference for assembling (tooth top plane vertical line) of duplicate gear and measure calibration reference (tooth top plane vertical line), use benchmark (flank profil involute engages) disunity, therefore, the assembly precision of duplicate gear is relatively not high, conventionally between 0.08～0.12mm, therefore rework rate is higher, one time assembly yield is few, and because of assembly precision not high, cause during machine installs and uses, the inner side z=26 gear of duplicate gear and the Z=26 gear meshing wear of topping roll are larger, service life lower (general≤4 months);
2. technical ability experience requires high: owing to forming two kinds of outside diameter of gear differences of duplex-gear wheels, respectively 392mm, 378mm, therefore use the miter square face of an angle of 90 degrees chi, measure the comparatively difficulty of tooth top plane vertical line registration of two different-diameter gears, need space to extend, technical ability experience to operating personnel is had relatively high expectations, and common senior work following personnel generally cannot operate;
3. the activity duration is short: owing to adopting temperature differential method assembled orientation, after heating, the gap of duplicate gear contact-making surface is 0.03mm, along with temperature reduces gap, disappearing, (bore cooling is shunk, axle journal expanded by heating), in especially winter, historical facts or anecdotes border stays a time less of adjusting measurement (generally at 3～5 minutes, winter is shorter is generally no more than 3 minutes), once gap disappears just cannot adjustment assembly, can only again push up and tear open, then luggage is joined.
In sum, in the assembly method of existing roll device duplicate gear, exist certain deficiency, if adopt the method for entirety processing duplicate gear, need to revise technical data, selected processor, Gear Processing cost rises, and is difficult for implementing; Therefore in existing assembly method, implement corresponding improvement, on the basis of assembly precision of guaranteeing duplicate gear, the operation fast and efficiently of realization scene, meets the needs of production.
Summary of the invention
The assembly method that the object of the present invention is to provide a kind of seamless steel pipe cold-rolling mill roll duplicate gear, realizes the quick precision assembled orientation of roll device duplicate gear, meets need of production;
For achieving the above object, technical scheme of the present invention is:
The present invention utilizes the flank profil involute surface of duplicate gear as measuring basis, makes measuring basis, reference for assembling, three unifications of use benchmark, eliminates the rigging error problem causing because of benchmark difference; By verification length bar, insert in flank profil involute surface (two gear grooves), according to the perpendicularity deviation of verification length bar, determine gear synchronous difference, by rotation, adjust spur gear correction centering, when verification length bar perpendicularity meets the requirements, the synchronization accuracy of duplicate gear also reaches technical requirement, realizes assembling and the adjustment of quick precision.
The inventive method technique is reasonable, easy and simple to handle, safe and reliable, practicality and high efficiency, and round-off error precision is high, can effectively improve the assembly precision of duplicate gear, reduce the activity duration, cover ETL estimated time of loading (not containing the heat time)≤3 minutes, precision can arrive 0.01-0.03mm, and rework rate is 0.
Particularly, the assembly method of duplicate gear for a kind of seamless steel pipe cold-rolling mill roll of the present invention, comprises following steps:
1) gear is prepared:
Cleaning, wiping bore and profile of tooth are also repaiied burr, reconditioning keyway; Check: axle journal, width of keyway, the profile angle data of measuring respectively spur gear endoporus, long handle gear;
2) assembling is prepared:
Gear heating, puts into electric furnace by spur gear and heats, and the time is about 30～45 minutes;
By long handle gear bottom, being profile of tooth end face wiped clean, being vertically placed on verification flat board, is that place operating personnel flank profil outside by starting point tooth-formation of gear involute two sides;
3) gear assembling:
A) assembled orientation: the gear after heating is transported to verification platform top, after wiping endoporus, by the endoporus assembled orientation of spur gear on long handle gear axle journal, the keyway on bore and keyway corresponding coincidence substantially on long handle gear axle journal;
B) adjust registration: it is in two gear grooves that verification length bar is inserted to flank profil involute surface, length bar bottom and dressing plate laminating, rock length bar, spur gear after heating can be rectified a deviation voluntarily, firmly length bar is advanced in two gear grooves subsequently, and according to offset direction and quantity, by hand hammer, knock rotation and adjust spur gear correction centering, when verification length bar perpendicularity meets the requirements, the synchronization accuracy of duplicate gear now also reaches technical requirement;
C) hot check: adopt 0.02mm patch, insert respectively four lines that verification length bar contacts with duplicate gear, all cannot insert or left and right gap width is equal regards as and meet the requirements;
D) place counterweight: at spur gear top, place counterweight, prevent that cooling backgear is to top offset;
4) gear checking:
A) check is prepared: after duplicate gear is cooling, it is in two gear grooves that verification length bar is pushed to flank profil involute surface, length bar bottom and dressing plate laminating;
B) clearance gauge detects: gap width the record data of four lines that employing clearance gauge measurement verification length bar contacts with duplicate gear, and because z=25 long handle gear is standard, therefore the large footpath of verification length bar size is processed with reference to its teeth groove, therefore two side clearances are generally 0;
C) computational accuracy error: the gap width data of measuring according to clearance gauge, calculate direction and the numerical value of assembly precision error, take spur gear clockwise on the occasion of, counter clockwise direction is negative value, computing formula is: D=│ d1-d2 │/2; D1, d2 are the gap widths of verification length bar circumferential surface profile of tooth involute adjacent with both sides; Error amount D between 0～0.06mm for meeting technical requirement;
D) confirm assembly precision: to giving through measuring with the assembly precision calculating, all needs that do not meet precision are done over again, and duplicate gear is torn on top open, ressembles;
5) manufacture positioning key: according to the actual conditions of duplicate gear positioning spline, manufacture positioning key and install;
6) warehouse-in: according to actual needs, select warehouse-in place or be directly assemblied on roll and use.
Beneficial effect of the present invention:
1. technique is reasonable, safe and reliable, easy to implement, practicality and high efficiency;
2. adopt verification lining bar to detect, adjust, easy and simple to handle, low to the requirement of operation technical ability;
3. measuring basis, reference for assembling, use benchmark three unification, improve installation accuracy;
4. effectively reduced duplicate gear rigging error and rework rate, improve operating efficiency;
5. the assembly precision of duplicate gear is guaranteed, and increases the service life, and reduces production costs;
6. highly versatile, the Standard of the duplicate gear to existing employing temperature differential method assembled orientation has certain reference, using value.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of duplicate gear of the present invention;
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the cutaway view of duplicate gear of the present invention.
Fig. 4 is the part drawing of long handle gear in duplicate gear of the present invention.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is the part drawing of spur gear in duplicate gear of the present invention.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is that the assembling of duplicate gear of the present invention detects schematic diagram.
Fig. 9 is the top view of Fig. 8.
Figure 10 is the A portion enlarged diagram of Fig. 9.
Figure 11～Figure 13 is duplicate gear check schematic diagram of the present invention.
The specific embodiment
The assembly method of duplicate gear for a kind of seamless steel pipe cold-rolling mill roll of the present invention, assembling for domestic LG series with the external roll lower device duplex cylindric straight-tooth gear of introducing XNT series seamless steel pipe cold-rolling mill, by dressing plate, verification length bar, top counterweight, hand hammer etc., form assembling and detect adjustment utensil, wherein dressing plate is as measuring basis platform, verification length bar is assembling testing tool, utilize the flank profil involute surface of duplicate gear as measuring basis, make measuring basis, reference for assembling, use benchmark three unification.
Dressing plate has a pair, is GB 1000*600mm dressing plate; Verification length bar has a pair, is a step-like cylinder, and material is Q235, surfacing processing, and roughness value is 0.02, the two step-like cylindrical coaxiality error≤0.02mm in place; Top counterweight has a pair, is that a material is the cylinder of Q235; Hand hammer has a pair, is the hand "painted-face" character in opera of GB 3P; Clearance gauge has a set of, is GB 100mm clearance gauge.
During on-the-spot use, dressing plate is as measuring basis platform, and verification length bar, for assembling testing tool, utilizes the flank profil involute surface of duplicate gear as measuring basis, makes measuring basis, reference for assembling, three unifications of use benchmark; During assembled orientation, verification length bar is inserted in flank profil involute surface (two gear grooves), according to the perpendicularity deviation of verification length bar, determine gear synchronous difference, by hand hammer, knock rotation and adjust spur gear realization correction centering, by clearance gauge, measure the gap width of verification length bar and upper and lower two gear-profile contact-making surfaces, detect assembly precision data; When verification length bar perpendicularity meets the requirements, the synchronization accuracy of duplicate gear also reaches technical requirement, realizes assembling and the adjustment of quick precision;
Referring to Fig. 1～Figure 13, the assembly method of duplicate gear for a kind of seamless steel pipe cold-rolling mill of the present invention roll, comprises following steps:
1, gear is prepared:
The gear loose mail that duplicate gear forms, cleaning, wiping bore and profile of tooth are also repaiied burr, reconditioning keyway etc.; Measure respectively the data such as the axle journal, width of keyway, profile angle of spur gear 2 endoporus, long handle gear 1;
2, assembling is prepared:
1) Work tool is prepared: dressing plate 3 is placed on check job platform 100, and wiped clean, verification length bar, clearance gauge, hand hammer, top counterweight etc. are placed on job platform, surperficial wiped clean;
2) gear heating: the spur gear of z=26 2 is put into electric furnace and heat, the time is about 30～45 minutes;
3) holding gears: by long handle gear 1 bottom (profile of tooth end face) wiped clean, be vertically placed on verification flat board 3, by starting point tooth-formation of gear involute two sides (flank profil) (in the face of operating personnel) placement outwardly;
3, gear assembling:
1) assembled orientation: close electric furnace, gear after heating is transported to verification platform top, after wiping endoporus, by the endoporus assembled orientation of z=26 spur gear 2 on long handle gear 1 axle journal of z=25 (keyway on bore and the basic corresponding coincidence of keyway on long handle gear axle journal);
2) adjust registration: verification length bar 4 is inserted in flank profil involute surface (two gear grooves), fit with dressing plate 3 in verification length bar bottom, rock verification length bar 4, z=26 gear after heating can be rectified a deviation voluntarily, firmly verification length bar advanced in two gear grooves subsequently, and according to offset direction and quantity, by hand hammer, knock rotation and adjust z=26 spur gear 2 centering of rectifying a deviation, when verification length bar perpendicularity meets the requirements, the synchronization accuracy of duplicate gear now also reaches technical requirement
3) hot check: adopt the 0.02mm patch of clearance gauge, insert respectively four lines that verification length bar contacts with duplicate gear, all cannot insert or left and right gap width is equal regards as and meet the requirements;
4) place counterweight: at z=26 spur gear 2 tops, place counterweight (preventing that cooling backgear is to top offset);
4, gear checking:
1) check is prepared: after duplicate gear is cooling, verification length bar 4 is pushed in flank profil involute surface (two gear grooves) (verification length bar 4 bottoms and dressing plate 3 are fitted);
2) clearance gauge detects: adopt clearance gauge 5 to measure the gap width of four lines that verification length bar 4 contacts with duplicate gear record data (because z=25 long handle gear 1 is standard, therefore verification length bar 4 large footpath sizes are with reference to its teeth groove processing, therefore two side clearances are generally 0);
3) computational accuracy error: the gap width data of measuring according to clearance gauge, calculate direction and the numerical value of assembly precision error, take z=26 spur gear 2 clockwise on the occasion of, counter clockwise direction is negative value, computing formula is: D=│ d1-d2 │/2; D1, d2 are the gap widths of verification length bar circumferential surface profile of tooth involute adjacent with both sides, refer to Figure 11～Figure 13.
4) confirm assembly precision: to adding their confirmation through measuring with the assembly precision calculating, all needs that do not meet precision do over again (duplicate gear is torn on top open, ressembles);
5, manufacture positioning key: according to the actual conditions of duplicate gear positioning spline, manufacture positioning key (generally because of reasons such as mismachining tolerance, rigging errors, keyway can be offset) and install;
6, warehouse-in: according to actual needs, select warehouse-in place or be directly assemblied on roll and use.
According to above-mentioned processing step, the duplicate gear that just can use seamless steel pipe cold-rolling mill bottom roll device carries out the precision assembled orientation such as quick, efficient.
Of the present invention a kind of for the assembly method of duplicate gear for seamless steel pipe cold-rolling mill roll, realize duplicate gear the assembled orientation of quick precision, meet need of production; Adopt verification length bar as testing tool, utilize the flank profil involute surface of duplicate gear as measuring basis, make measuring basis, reference for assembling, three unifications of use benchmark, the rigging error problem that elimination causes because of benchmark difference, realize assembling and the adjustment of quick precision, in the service life of improving roll device, can reduce every year correlative charges more than 150,000 yuan; The method technique is reasonable, easy and simple to handle, safe and reliable, practicality and high efficiency, and round-off error precision is high, can effectively improve the assembly precision of duplicate gear, reduce the activity duration, cover ETL estimated time of loading (not containing the heat time)≤5 minutes, precision can arrive 0.01-0.03mm, and rework rate is 0; Highly versatile, the Standard of the duplicate gear to existing employing temperature differential method assembled orientation has certain reference, using value.
Embodiment
With Х П Т-55 cold pilger mill drive rolls (bottom roll device) duplicate gear (m=15, Z1=25, Z2=26), be example, its assembly technology is as follows:
1, gear is prepared:
1) receive gear: according to job ticket requirement, in storehouse, receive the gear loose mail that duplicate gear forms;
2) cleaning gear: cleaning, wiping bore and profile of tooth, file is repaiied burr, reconditioning keyway, pre-assembled etc.;
3) check: the respectively data such as the axle journal (260mm) of prototype gear endoporus (diameter 260,180mm), long handle gear, width of keyway (45mm), profile angle (top width 21.63mm);
2, assembling is prepared:
1) Work tool is prepared: dressing plate is placed on check job platform, and wiped clean, verification length bar, clearance gauge, hand hammer, top counterweight etc. are placed on job platform, surperficial wiped clean;
2) gear heating: by the spur gear of z=26, after using iron wire to tie up, adopt driving handling, put into electric furnace heating, temperature is at 320～370 degree, and the time is about 30～45 minutes;
3) holding gears: by long handle gear bottom (profile of tooth end face) wiped clean, be vertically placed on verification flat board, by starting point tooth-formation of gear involute two sides (flank profil) (in the face of operating personnel) placement outwardly;
3, gear assembling:
1) assembled orientation: close electric furnace, driving handling is transported to verification platform top by the gear after heating, after wiping endoporus, by the endoporus assembled orientation of z=26 spur gear on the long handle gear axle journal of z=25 (keyway on bore and the basic corresponding coincidence of keyway on long handle gear axle journal);
2) adjust registration: verification length bar is inserted in flank profil involute surface (two gear grooves), length bar bottom and dressing plate laminating, rock length bar, z=26 spur gear after heating can be rectified a deviation voluntarily, firmly length bar advanced in two gear grooves subsequently, and according to offset direction and quantity, by hand hammer, knock rotation and adjust z=26 spur gear correction centering, when verification length bar perpendicularity meets the requirements, the synchronization accuracy of duplicate gear now also reaches technical requirement
3) hot check: the 0.02mm patch that adopts clearance gauge, insert respectively four lines that verification length bar contacts with duplicate gear, wherein under d1() and d2(under) all insert not enter, gap width≤0.02mm is described, on d1() gap is 0.03mm, on d2() gap is 0.04mm, left and right error amount is on │ d1() on-d2() │/2=0.005mm, meet technical requirement, do not adjusting;
4) place counterweight: at z=26 spur gear top, place counterweight (preventing that cooling backgear is to top offset);
4, gear checking:
1) check is prepared: after duplicate gear is cooling, verification length bar is pushed to (length bar bottom and dressing plate laminating) in flank profil involute surface (two gear grooves);
2) clearance gauge detects: the gap width of four lines that employing clearance gauge measurement verification length bar contacts with duplicate gear record data (because z=25 long handle gear is standard, therefore the large footpath of verification length bar size is processed with reference to its teeth groove, therefore two side clearances are generally 0);
3) computational accuracy error: the gap width data of measuring according to clearance gauge, calculate direction and the numerical value of assembly precision error, take z=26 spur gear clockwise as on the occasion of, be counterclockwise negative value, the gap width of actual measurement duplicate gear 4 place's side lines (point) is respectively on d1() on=0.02mm, d2() under=0.03mm, d1()=0.01mm, under d2()=0.00mm, according to computing formula, under error amount D=│ d1-d2 │/2=│ d1() on-d1() under-d2() on-d2() │/2=│ (0.01-0.02)-(0-0.01) │/2=0.01mm;
4) confirm assembly precision: through the error amount that calculates lower gear assembling on the duplicate gear obtaining, be 0.01mm, meet technical requirement;
5, manufacture positioning key: according to the actual conditions of duplicate gear positioning spline, manufacture positioning key.Because rigging error value is 0.01mm, manufacture 45*22.5*80mm positioning key comparatively convenient, and install;
6, warehouse-in: according to actual needs, select warehouse-in place or be directly assemblied on roll and use.
Claims (1)
1. an assembly method for duplicate gear for seamless steel pipe cold-rolling mill roll, comprises following steps:
1) gear is prepared:
Cleaning, wiping bore and profile of tooth are also repaiied burr, reconditioning keyway; Check: axle journal, width of keyway, the profile angle data of measuring respectively spur gear endoporus, long handle gear;
2) assembling is prepared:
Gear heating, puts into electric furnace by spur gear and heats, and the time is about 30～45 minutes;
By long handle gear bottom, being profile of tooth end face wiped clean, being vertically placed on verification flat board, is that place operating personnel flank profil outside by starting point tooth-formation of gear involute two sides;
3) gear assembling:
A) assembled orientation: the gear after heating is transported to verification platform top, after wiping endoporus, by the endoporus assembled orientation of spur gear on long handle gear axle journal, the keyway on bore and keyway corresponding coincidence substantially on long handle gear axle journal;
B) adjust registration: it is in two gear grooves that verification length bar is inserted to flank profil involute surface, verification length bar bottom and dressing plate laminating, rock verification length bar, spur gear after heating can be rectified a deviation voluntarily, firmly verification length bar is advanced in two gear grooves subsequently, and according to offset direction and quantity, by hand hammer, knock rotation and adjust gear correction centering, when verification length bar perpendicularity meets the requirements, the synchronization accuracy of duplicate gear now also reaches technical requirement;
C) hot check: adopt 0.02mm patch, insert respectively four lines that verification length bar contacts with duplicate gear, all cannot insert or left and right gap width is equal regards as and meet the requirements;
D) place counterweight: at spur gear top, place counterweight, prevent that cooling backgear is to top offset;
4) gear checking:
A) check is prepared: after duplicate gear is cooling, it is in two gear grooves that verification length bar is pushed to flank profil involute surface, verification length bar bottom and dressing plate laminating;
B) clearance gauge detects: gap width the record data of four lines that employing clearance gauge measurement verification length bar contacts with duplicate gear, and because long handle gear is standard, therefore the large footpath of verification length bar size is processed with reference to its teeth groove, therefore two side clearances are generally 0;
C) computational accuracy error: the gap width data of measuring according to clearance gauge, calculate direction and the numerical value of assembly precision error, take spur gear clockwise on the occasion of, counter clockwise direction is negative value, computing formula: error amount D=│ d1-d2 │/2; D1, d2 are the gap widths of verification length bar circumferential surface profile of tooth involute adjacent with both sides; Error amount D between 0～0.06mm for meeting technical requirement;
D) confirm assembly precision: to adding their confirmation through measuring with the assembly precision calculating, all needs that do not meet precision are done over again, and duplicate gear is torn on top open, ressembles;
5) manufacture positioning key: according to the actual conditions of duplicate gear positioning spline, manufacture positioning key and install;
6) warehouse-in: according to actual needs, select warehouse-in place or be directly assemblied on roll and use.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740329.7A CN103722355B (en) | 2013-12-27 | 2013-12-27 | A kind of assembly method of seamless steel pipe cold-rolling mill roll duplicate gear |
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| CN201310740329.7A CN103722355B (en) | 2013-12-27 | 2013-12-27 | A kind of assembly method of seamless steel pipe cold-rolling mill roll duplicate gear |
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| CN103722355B CN103722355B (en) | 2016-08-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171335A (en) * | 2014-06-18 | 2015-12-23 | 宝钢特钢有限公司 | Assembling method of seamless steel pipe cold rolling machine base transmission tooth bar |
| CN108857281A (en) * | 2018-07-06 | 2018-11-23 | 中建钢构有限公司 | Large space heavy-duty machinery column and the high-accuracy locating mounting method of construction steel structure |
| CN110039270A (en) * | 2019-04-11 | 2019-07-23 | 苏州科峰英诺传动技术有限公司 | Combined type duplicate gear production method |
| JP2020008371A (en) * | 2018-07-05 | 2020-01-16 | 株式会社Ｓｕｂａｒｕ | Master gear, dent inspection device having master gear, and dent inspection method using master gear |
| CN111515859A (en) * | 2020-06-08 | 2020-08-11 | 贵州航锐航空精密零部件制造有限公司 | Method for quickly adjusting main shaft runout of grinding head |
| CN111940514A (en) * | 2019-05-17 | 2020-11-17 | 宝武特种冶金有限公司 | Online adjusting method for transmission precision of roller of seamless steel tube cold rolling mill |
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| CN102705476A (en) * | 2012-06-13 | 2012-10-03 | 常州奥立思特电子有限公司 | Dual gear and machining process for same |
| CN202780988U (en) * | 2012-07-17 | 2013-03-13 | 泛威（苏州）科技材料有限公司 | Tooth aligning tooling of duplicate gear |
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| EP0548888A2 (en) * | 1991-12-24 | 1993-06-30 | Sumitomo Heavy Industries, Ltd. | Internally meshing planetary gear structure |
| US20080041661A1 (en) * | 2006-08-08 | 2008-02-21 | D B Industries, Inc. | Retractable horizontal lifeline assembly |
| CN102705476A (en) * | 2012-06-13 | 2012-10-03 | 常州奥立思特电子有限公司 | Dual gear and machining process for same |
| CN202780988U (en) * | 2012-07-17 | 2013-03-13 | 泛威（苏州）科技材料有限公司 | Tooth aligning tooling of duplicate gear |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171335A (en) * | 2014-06-18 | 2015-12-23 | 宝钢特钢有限公司 | Assembling method of seamless steel pipe cold rolling machine base transmission tooth bar |
| CN105171335B (en) * | 2014-06-18 | 2017-09-22 | 宝钢特钢有限公司 | The assembly method of seamless steel pipe cold-rolling mill support driving rack |
| JP2020008371A (en) * | 2018-07-05 | 2020-01-16 | 株式会社Ｓｕｂａｒｕ | Master gear, dent inspection device having master gear, and dent inspection method using master gear |
| JP7191457B2 (en) | 2018-07-05 | 2022-12-19 | 株式会社Subaru | Master gear, dent inspection device equipped with the master gear, and dent inspection method using the master gear |
| CN108857281A (en) * | 2018-07-06 | 2018-11-23 | 中建钢构有限公司 | Large space heavy-duty machinery column and the high-accuracy locating mounting method of construction steel structure |
| CN110039270A (en) * | 2019-04-11 | 2019-07-23 | 苏州科峰英诺传动技术有限公司 | Combined type duplicate gear production method |
| CN110039270B (en) * | 2019-04-11 | 2021-02-26 | 苏州科峰英诺传动技术有限公司 | Method for manufacturing combined duplicate gear |
| CN111940514A (en) * | 2019-05-17 | 2020-11-17 | 宝武特种冶金有限公司 | Online adjusting method for transmission precision of roller of seamless steel tube cold rolling mill |
| CN111515859A (en) * | 2020-06-08 | 2020-08-11 | 贵州航锐航空精密零部件制造有限公司 | Method for quickly adjusting main shaft runout of grinding head |
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| CN103722355B (en) | 2016-08-24 |
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