CN204771430U - A online dismounting device for seamless steel pipe cold rolling mill worm wheel component - Google Patents

A online dismounting device for seamless steel pipe cold rolling mill worm wheel component Download PDF

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Publication number
CN204771430U
CN204771430U CN201520453198.9U CN201520453198U CN204771430U CN 204771430 U CN204771430 U CN 204771430U CN 201520453198 U CN201520453198 U CN 201520453198U CN 204771430 U CN204771430 U CN 204771430U
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worm gear
plate
spreader
gear component
disengagement
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陈涛
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Baosteel Special Steel Co Ltd
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Baosteel Special Steel Co Ltd
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Abstract

The utility model provides an online dismounting device for seamless steel pipe cold rolling mill worm wheel component, including the epaxial worm wheel member of treating the dismantlement that adopts the interference fit suit between antifriction bearing and rotatory sleeve, this worm wheel component is blocked by the online dismounting device's of a worm wheel locating plate, the upper and lower both ends of this locating plate are equipped with the spreader that axial direction set up respectively, this spreader one end is fixed with the locating plate, the other end then is equipped with adjustment picture peg group, and be provided with the hydraulic pump in the spreader space between adjustment picture peg group and locating plate, the just right center of treating the axle of the worm wheel component suit of dismantlement of ejector pin of this hydraulic pump. The utility model discloses on the basis of ensureing operation safety, improved the dismantlement disintegration efficiency of worm wheel component, reduced the supplies consumption, on -the -spot application effect is good, and the effectual equipment trouble down time that has reduced has alleviateed to overhaul and has maintained the operation load, has promoted equipment ride quality, has reduced equipment maintenance cost.

Description

A kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component
Technical field
The utility model relates to a kind of provision for disengagement, particularly relates to and is a kind ofly applied to metallurgy, the online provision for disengagement for dismantling its worm gear component of cold rolling production equipment that machinery industry produces seamless steel pipe.
Background technology
At present, seamless steel pipe is as a kind of common metallurgical product, and by Ge Jia steel pipe's production, enterprise produces, and in seamless steel tube production, and cold deformation processing-cold rolling is main production process.Because cold rolling production is because deflection is large, be easy to advantages such as controlling, rolling accuracy is high, speed is fast, output is large, become the cold deformation processing mode that Ge Jia steel pipe's production enterprise extensively adopts, wherein double-roller type cold pilger mill is the main cold rolling production equipment of current seamless steel pipe.
Double-roller type cold pilger mill under prior art, as LG-220H type cold-rolling mill, can be used for the cold rolling production equipment being rolled into QC external diameter φ 114 ~ φ 219mm seamless steel pipe, be the main rear road rolling process equipment that line is produced in seamless steel pipe hot extrusion, be usually used in the production of the major products such as nuclear power pipe, oil well pipe.Longitudinal total length more than 60 rice of this equipment, is turned round by rolling, main transmission, feeding, awards the unit such as material, discharging, lathe bed, intermediate transmission, plug transmission, equipment lubrication, technological lubrication, hydraulic pressure, pneumatic, electrical control and system forms.Wherein feeding rotary system is made up of shaft componentses such as gear housing, fork governor motion, leading screw floating mechanism, mandrel chuck mechanism, plug micro-adjusting mechanism, quick gearing mechanism, induction testing agency feeding output mechanism, corner output mechanisms, for the power that motor is exported, be converted into meet technical requirement feeding, send to corner, turn round action and export.
Wherein, angular output shaft is the critical piece of this equipment revolving feed device, total length 2062mm, gross weight 970KG, action for being inputted by motor is converted to the parts such as entrance chuck, outlet chuck that chuck mechanism is exported in corner action, by the action of two cover chucks, realize the production tube after clamping blank pipe to be rolled and rolling respectively, do synchronous rotary motion according to the corner action of setting.The using state of angular output shaft, directly has influence on the rolling quality of seamless steel pipe, and corner will cause the asynchronous or disappearance of corner in rolling extremely, finally causes the abnormal and equipment fault shutdown of rolling.
And the major failure point of angular output shaft is exactly worm gear component, in routine use, copper worm gear component can produce wearing and tearing deterioration, and affect larger by lubrication, occur that the worm gear after deterioration wearing and tearing causes mechanical transmission course intermediate gap excessive, mechanical movement amount is caused to be cancelled, the demand that seamless steel pipe feeding and gyration export cannot be met, now just the member integrateds such as the worm gear of wear out failure must be changed, otherwise the exception of corner output action will be caused, affect normal operation and the production of equipment.
But, the material of the cold-rolling mill worm gear component under prior art is brass alloys, maximum outside diameter 376mm, endoporus 145mm, thickness 230mm, modulus m=12, number of teeth z=28, substance 101KG, adopt temperature differential method assembled orientation on corner axle, axle and worm gear adopt interference fit, the magnitude of interference is 0.04 ~ 0.08mm, worm gear both sides also have bearing, positioning sleeve, the actuated element of gear, therefore disintegrate when changing worm gear and need directed dismounting, maintenance craft and assembly precision require higher, usually hydraulic machinery dismounting is adopted at present, install again after heating entity equipment, and traditional repair method is exactly by components such as the worm gears of inefficacy, adopt vehicle transport to service area, use the equipments such as Special purpose pressing machine, dismounting disassembling operation is carried out to it, although the method is reliable and stable, but be through field worker to operate for a long time and on-the-spot feedback, existing dismantling technology and dismounting means or Shortcomings part:
1. cold-rolling mill worm gear element structure is complicated, and its entirety is elongated shaft-like, axle is provided with the components such as bearing, gear, worm gear, transparent cover, and dismantles worm gear and need to dismantle in advance bearing, transparent cover etc., and operation is loaded down with trivial details, and operating efficiency is not high;
2. downstream equipment does not mate, and the Special purpose pressing machine under prior art is 500t wheel shaft type hydraulic equipment, and hydraulic-driven power is higher, but U-shaped opening is bigger than normal, needs to use setting holder top board could meet the demand of tearing open on worm gear top, also affects operating efficiency;
3. take a lot of work consuming time, the axle systems such as worm gear need vehicle transport to leave device context, be transported to the service area outside Production Regional, due to cannot original place dismounting, by plant area's Security Administration, also will handle relevant material during whole operation to dispatch from the factory, enter the formalities such as factory, the non-activity duration consumes more, affects operating efficiency;
4. there is potential safety hazard, because bearing etc. belongs to the element through quenching, top is torn open in operation once stressed appearance is abnormal, easily burst under effect of stress, operating personnel may be injured, therefore in order to ensure job safety, often adopt leading high temperature to cut off the mode of bearing, add supplies consumption for no reason and cut and waste time and energy.
Although also once attempted online disintegration under prior art, but common dismounting Work tool structure is thin, location difficulty, operation inconvenience, especially once force is departed from, push rod and cushion block will be caused to splash, both there is potential safety hazard, and injured again outside rolling bearing, increase follow-up disposal working load on the contrary.
In sum, removing and installing of large-scale cold-rolling mill worm gear component is a difficult point in the large-scale cold rolling unit equipment operation maintenance operation of current Ge Jia steel pipe's production enterprise.Therefore can meet the design feature of cold-rolling mill worm gear component and the online top dismantling device of maintenance needs in the urgent need to a kind of now, on the basis of guaranteeing job safety, improve operating efficiency, reduce supplies consumption.
Utility model content
In order to solve the difficult point removed and installed of large-scale cold-rolling mill worm gear component existing in above-mentioned prior art, the utility model provides a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component, can be used for the online dismounting disassembling operation of the worm gear component with seamless steel pipe cold-rolling mill, achieve the dismounting worm gear component of rapidly and efficiently safety, the utility model is rational in infrastructure, device is compact, accurate positioning, easy to use, safe and reliable, on the basis of guaranteeing job safety, improve the dismounting disintegration efficiency of worm gear component, decrease supplies consumption, concrete structure of the present utility model is as described below:
For an online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component, comprise adopt interference fit to be sleeved between rolling bearing and turnbarrel axle on worm gear component to be removed, it is characterized in that:
Described worm gear component is blocked by the location-plate of the online provision for disengagement of a worm gear, the two ends up and down of this location-plate are respectively fitted with the spreader of axial direction setting, this spreader one end and location-plate are fixed, the other end is then equipped with adjustment plate group, and be provided with hydraulic pump, the center of the axle that the just right worm gear component to be removed of push rod of this hydraulic pump is set with in spreader space between adjustment plate group and location-plate.
According to a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it is characterized in that, described location-plate is the rectangular slab of a single-open, it is specially, the rectangular aperture groove of bottom for semicircle shape is processed with in the side of this cuboid, rectangular aperture groove is all welded with location-plate reinforcement in the surrounding of rectangular slab and the outside of rectangular aperture groove, and this rectangular aperture groove inserts the rear portion of worm gear component to be removed, online for whole worm gear provision for disengagement is fixed.
According to a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it is characterized in that, described spreader its be specially the channel-section steel arranged with axle run-in index, have 2, one end of spreader is assemblied in the two ends up and down of location-plate respectively, and the other end of spreader is processed with rectangular opening on its spreader bottom surface, and the minor face of this rectangular opening is parallel with spreader end face, rectangular opening distance spreader end face has the safe distance avoiding being out of shape, and interior angle four limit of this rectangular opening is round-corner transition.
According to a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it is characterized in that, described adjustment plate group has 8 ~ 10 blocks of adjustment plates, it is specially a rectangle plate to adjust plate, and one square plate is set respectively in the both sides of this adjustment plate minor face, two square board sizes are equal, the center line of square plate overlaps with the center line of adjustment plate, the junction of the square plate of adjustment plate and both sides is round-corner transition, and the length of whole adjustment plate is greater than the spacing of the spreader being arranged on the upper and lower two ends of location-plate.
According to a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it is characterized in that, the square plate of each adjustment plate of described adjustment plate group is all corresponding with the rectangular opening size of spreader, namely, in use, the square plate of adjustment plate both sides can insert the rectangular opening of spreader by the order arrangement in this rectangular opening of each adjustment plate to adjustment plate.
According to a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it is characterized in that, the push rod of described hydraulic pump its be specially the cylinder of its central band manhole in, the center of the axle that the just right worm gear component to be removed of push rod is set with, and the axial line of push rod is parallel with spreader, hydraulic pump withstands axle by the outside jacking of online for whole worm gear provision for disengagement by push rod, that is, outwards ejected by the worm gear component blocked by the online provision for disengagement of worm gear.
Above-mentioned purpose of design is, the central part of push rod is under guarantee top lift and intensity prerequisite, heart portion is processed with manhole wherein, its objective is in order to loss of weight, the end face of push rod is processed with chamfered transition, and it is anti-skidding to be processed with annular knurl at the external peripheral surface of push rod, in use, after push rod outreach reaches the limit of position, closing and return push rod, by increasing the adjustment plate quantity of adjustment plate group, the distance that axial displacement produces being compensated, repeat these steps, until dismantled from axle by worm gear member integrated.
A kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model is used to obtain following beneficial effect:
1. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it is rational in infrastructure, device is compact, accurate positioning, easy to use, safe and reliable, on the basis of guaranteeing job safety, improve the dismounting disintegration efficiency of worm gear component, decrease supplies consumption;
2. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, by the effect of hydraulic pump, worm gear component is removed from axle, the gap that worm gear axial displacement produces, compensate by the mode increasing adjustment plate, realize the object of the dismounting worm gear component of rapidly and efficiently safety, effectively raise the dismounting disassembling operation efficiency of the components such as feeding rotary gear box inside lock output shaft worm gear, effect of field application is good, effectively decrease Stop-Time of Device Failure, alleviate repair and maintenance working load, improve equipment running quality, reduce equipment maintenance cost,
3. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, also adjustable plate is increased before location-plate, the needs of dismounting rolling bearing can also be met, as push rod is replaced by cylinder structure, more can meet the needs installing worm gear component and rolling bearing.
Accompanying drawing explanation
Fig. 1 is the concrete structure schematic diagram of the seamless steel pipe cold-rolling mill worm gear component under prior art;
Fig. 2 is the concrete structure schematic diagram of a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model;
Fig. 3 is the concrete structure schematic diagram of the location-plate of a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model;
Fig. 4 is the concrete structure schematic diagram of the spreader of a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model;
Fig. 5 is the concrete structure schematic diagram of the adjustment plate of a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model;
Fig. 6 is the concrete implementation result figure of a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model.
In figure: 1-rolling bearing, 2-turnbarrel, 3-axle, 4-worm gear component, the online provision for disengagement of A-worm gear, A1-location-plate, A2-spreader, A3-adjusts plate group, A4-hydraulic pump, A5-push rod, A11-rectangular aperture groove, A12-location-plate reinforcement, A21-rectangular opening, A31-square plate.
Detailed description of the invention
Below in conjunction with drawings and Examples, a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model is further described.
Embodiment
As shown in Figures 2 to 6, a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component, comprise adopt interference fit to be sleeved between rolling bearing 1 and turnbarrel 2 axle 3 on worm gear component 4 to be removed, this worm gear component is blocked by the location-plate A1 of the online provision for disengagement A of a worm gear, the two ends up and down of this location-plate are respectively fitted with the spreader A2 of axial direction setting, this spreader one end and location-plate are fixed, the other end is then equipped with adjustment plate group A3, and adjustment plate group and location-plate between spreader space in be provided with hydraulic pump A4, the center of the axle 3 that the just right worm gear component 4 to be removed of push rod A5 of this hydraulic pump is set with.
As shown in Figure 3, location-plate A1 is the rectangular slab of a single-open, it is specially, the rectangular aperture groove A11 of bottom for semicircle shape is processed with in the side of this cuboid, rectangular aperture groove is all welded with location-plate reinforcement A12 in the surrounding of rectangular slab and the outside of rectangular aperture groove, this rectangular aperture groove inserts the rear portion of worm gear component 4 to be removed, is fixed by online for whole worm gear provision for disengagement A.
As shown in Figure 4, spreader A2 its be specially the channel-section steel arranged with axle 3 run-in index, have 2, one end of spreader is assemblied in the two ends up and down of location-plate A1 respectively, the other end of spreader is processed with rectangular opening A21 on its spreader bottom surface, the minor face of this rectangular opening is parallel with spreader end face, and rectangular opening distance spreader end face has the safe distance avoiding being out of shape, and interior angle four limit of this rectangular opening is round-corner transition.
As shown in Figure 5, adjustment plate group A3 has 8 ~ 10 pieces of adjustment plate (in the present embodiment being 8 pieces), it is specially a rectangle plate to adjust plate, and one square plate A31 is set respectively in the both sides of this adjustment plate minor face, two square board sizes are equal, the center line of square plate overlaps with the center line of adjustment plate, the junction of the square plate of adjustment plate and both sides is round-corner transition, and the length of whole adjustment plate is greater than the spacing of the spreader A2 being arranged on the upper and lower two ends of location-plate A1.
The square plate A31 of each adjustment plate of above-mentioned adjustment plate group A3 is all corresponding with the rectangular opening A21 size of spreader A2, namely, in use, the square plate of adjustment plate both sides can insert the rectangular opening of spreader by the order arrangement in this rectangular opening of each adjustment plate to adjustment plate.
Shown in figure 6, the push rod A5 of hydraulic pump A4 its be specially the cylinder of its central band manhole A51 in, the center of the axle 3 that the just right worm gear component 4 to be removed of push rod is set with, and the axial line of push rod is parallel with spreader A2, hydraulic pump withstands axle by the outside jacking of online for whole worm gear provision for disengagement A (Fig. 5 direction of arrow) by push rod, that is, the worm gear component blocked by the online provision for disengagement of worm gear is outwards ejected.
The central part of push rod is under guarantee top lift and intensity prerequisite, heart portion is processed with manhole wherein, its objective is in order to loss of weight, the end face of push rod is processed with chamfered transition, and it is anti-skidding to be processed with annular knurl at the external peripheral surface of push rod, in the present embodiment, hydraulic pump adopts the very heavy hydraulic pump of single-acting of comparatively general RC1010, in use, after push rod outreach reaches the limit of position, close and return push rod, by increasing the adjustment plate quantity of adjustment plate group, the distance that axial displacement produces is compensated, repeat these steps, until worm gear member integrated is dismantled from axle.
A kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it specifically uses step as described below:
1. first angular output shaft is disembarked and be placed on the other room of gear housing machine, after removing rolling bearing 1 in advance, by the rectangular aperture groove A11 of the location-plate A1 of online for worm gear provision for disengagement A down, the overall rear side inserting worm gear component 4, operation to use parallels, cushion block by spreader A2 and ground keeping parallelism state;
2. the square plate A31 of 3 ~ 4 pieces of plate both sides of adjustment plate group A3 is inserted in the rectangular channel A21 of both sides spreader A2, by each adjustment plate order arrangement, hydraulic pump A4 is provided with in spreader A2 space between adjustment plate group and location-plate A1, the push rod A5 of hydraulic pump is just to the center of the axle 3 that worm gear component to be removed is set with, should notice that the axial line of push rod is parallel with spreader, operating personnel's primer fluid pressing system, push rod axial displacement, hydraulic pump withstands axle by the outside jacking of online for whole worm gear provision for disengagement A (Fig. 5 direction of arrow) by push rod, namely, the worm gear component blocked by the online provision for disengagement of worm gear is outwards ejected (dismounting).
3. after push rod A5 outreach reaches the limit of position, close and return push rod, by increasing the adjustment plate quantity of adjustment plate group A3, the distance that axial displacement produces being compensated, repeats these steps, until dismantled from axle by worm gear member integrated.
A kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, it is rational in infrastructure, device is compact, accurate positioning, easy to use, safe and reliable, on the basis of guaranteeing job safety, improve the dismounting disintegration efficiency of worm gear component, decrease supplies consumption; The utility model is by the effect of hydraulic pump, worm gear component is removed from axle, the gap that worm gear axial displacement produces, compensate by the mode increasing adjustment plate, realize the object of the dismounting worm gear component of rapidly and efficiently safety, effectively raise the dismounting disassembling operation efficiency of the components such as feeding rotary gear box inside lock output shaft worm gear, effect of field application is good, effectively decrease Stop-Time of Device Failure, alleviate repair and maintenance working load, improve equipment running quality, reduce equipment maintenance cost; And the utility model also increases adjustable plate before location-plate, the needs of dismounting rolling bearing can also be met, as push rod is replaced by cylinder structure, more can meet the needs installing worm gear component and rolling bearing.
A kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component of the present utility model, is applicable to the online dismounting field of the worm gear component of the cold rolling production equipment of various seamless steel pipe.

Claims (6)

1. the online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component, comprise the axle (3) adopting interference fit to be sleeved between rolling bearing (1) and turnbarrel (2) and go up worm gear component (4) to be removed, it is characterized in that:
Described worm gear component (4) is blocked by the location-plate (A1) of the online provision for disengagement of a worm gear (A), the two ends up and down of this location-plate are respectively fitted with the spreader (A2) of axial direction setting, this spreader one end and location-plate are fixed, the other end is then equipped with adjustment plate group (A3), and be provided with hydraulic pump (A4), the center of the axle (3) that the just right worm gear component (4) to be removed of push rod (A5) of this hydraulic pump is set with in spreader space between adjustment plate group and location-plate.
2. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component as claimed in claim 1, it is characterized in that, described location-plate (A1) is the rectangular slab of a single-open, it is specially, the rectangular aperture groove (A11) of bottom for semicircle shape is processed with in the side of this cuboid, rectangular aperture groove is all welded with location-plate reinforcement (A12) in the surrounding of rectangular slab and the outside of rectangular aperture groove, this rectangular aperture groove inserts the rear portion of worm gear component (4) to be removed, online for whole worm gear provision for disengagement (A) is fixed.
3. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component as claimed in claim 1, it is characterized in that, described spreader (A2) its be specially the channel-section steel arranged with axle (3) run-in index, have 2, one end of spreader is assemblied in the two ends up and down of location-plate (A1) respectively, the other end of spreader is processed with rectangular opening (A21) on its spreader bottom surface, the minor face of this rectangular opening is parallel with spreader end face, rectangular opening distance spreader end face has the safe distance avoiding being out of shape, and interior angle four limit of this rectangular opening is round-corner transition.
4. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component as claimed in claim 1, it is characterized in that, described adjustment plate group (A3) has 8 ~ 10 blocks of adjustment plates, it is specially a rectangle plate to adjust plate, and one square plate (A31) is set respectively in the both sides of this adjustment plate minor face, two square board sizes are equal, the center line of square plate overlaps with the center line of adjustment plate, the junction of the square plate of adjustment plate and both sides is round-corner transition, the length of whole adjustment plate is greater than the spacing of the spreader (A2) being arranged on the upper and lower two ends of location-plate (A1).
5. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component as claimed in claim 4, it is characterized in that, the square plate (A31) of each adjustment plate of described adjustment plate group (A3) is all corresponding with rectangular opening (A21) size of spreader (A2), namely, in use, the square plate of adjustment plate both sides can insert the rectangular opening of spreader by the order arrangement in this rectangular opening of each adjustment plate to adjustment plate.
6. a kind of online provision for disengagement for seamless steel pipe cold-rolling mill worm gear component as claimed in claim 1, it is characterized in that, the push rod (A5) of described hydraulic pump (A4) its be specially the cylinder of its central band manhole in, the center of the axle (3) that the just right worm gear component (4) to be removed of push rod is set with, and the axial line of push rod is parallel with spreader (A2), hydraulic pump withstands axle by the outwards jacking of online for whole worm gear provision for disengagement (A) by push rod, that is, the worm gear component blocked by the online provision for disengagement of worm gear is outwards ejected.
CN201520453198.9U 2015-06-29 2015-06-29 A online dismounting device for seamless steel pipe cold rolling mill worm wheel component Active CN204771430U (en)

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Application Number Priority Date Filing Date Title
CN201520453198.9U CN204771430U (en) 2015-06-29 2015-06-29 A online dismounting device for seamless steel pipe cold rolling mill worm wheel component

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Application Number Priority Date Filing Date Title
CN201520453198.9U CN204771430U (en) 2015-06-29 2015-06-29 A online dismounting device for seamless steel pipe cold rolling mill worm wheel component

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108787755A (en) * 2017-04-26 2018-11-13 宝钢特钢有限公司 A kind of on-bne repair method of seamless steel pipe cold-rolling mill feeding adjusting apparatus
CN111300013A (en) * 2019-12-24 2020-06-19 常州机电职业技术学院 Formula of wandering wheel axle pressure equipment machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108787755A (en) * 2017-04-26 2018-11-13 宝钢特钢有限公司 A kind of on-bne repair method of seamless steel pipe cold-rolling mill feeding adjusting apparatus
CN108787755B (en) * 2017-04-26 2019-08-20 宝钢特钢有限公司 A kind of on-bne repair method of seamless steel pipe cold-rolling mill feeding adjustment device
CN111300013A (en) * 2019-12-24 2020-06-19 常州机电职业技术学院 Formula of wandering wheel axle pressure equipment machine

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