CN202951707U - Automatic axial centering, mounting and dismounting device for working roller and bearing pedestal of four-roller mill - Google Patents

Automatic axial centering, mounting and dismounting device for working roller and bearing pedestal of four-roller mill Download PDF

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Publication number
CN202951707U
CN202951707U CN 201220680762 CN201220680762U CN202951707U CN 202951707 U CN202951707 U CN 202951707U CN 201220680762 CN201220680762 CN 201220680762 CN 201220680762 U CN201220680762 U CN 201220680762U CN 202951707 U CN202951707 U CN 202951707U
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CN
China
Prior art keywords
dismounting
roller
lifting
working roll
centering
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Expired - Lifetime
Application number
CN 201220680762
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Chinese (zh)
Inventor
王国生
张明珠
冯兴腾
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Nanjing Iron and Steel Co Ltd
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Nanjing Iron and Steel Co Ltd
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Application filed by Nanjing Iron and Steel Co Ltd filed Critical Nanjing Iron and Steel Co Ltd
Priority to CN 201220680762 priority Critical patent/CN202951707U/en
Application granted granted Critical
Publication of CN202951707U publication Critical patent/CN202951707U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an automatic axial centering, mounting and dismounting device for a working roller and a bearing pedestal of a four-roller mill. The device comprises a lifting table and transversely moving guide rails arranged on two sides of the lifting table, wherein a lifting guide frame is arranged on the lifting table; a lifting oil cylinder is arranged in the lifting guide frame; a V-shaped supporting seat is arranged on the upper part of the lifting oil cylinder; carrying rollers are arranged on two sides of the V-shaped supporting seat and are connected with each other in a driving manner through a hydraulic motor; and a centering and dismounting transversely moving trolley is arranged on each of the transversely moving guide rails on the two sides and is driven by trolley transverse moving oil cylinders at two ends of the transversely moving guide rails. By the device, the working roller and bearing pedestal mounting and dismounting precision of the memorial gateway of the four-roller mill can be guaranteed; the sizes and the geometrical tolerances of the working roller and the bearing pedestal are automatically adjusted; impact to a bearing during mounting and dismounting can be effectively reduced; loss of a sealing ring is reduced; the service life of the bearing is effectively prolonged; the working roller and the bearing pedestal of the four-roller mill can be quickly and automatically mounted and dismounted in an off line manner; and the working roller mounting efficiency is improved.

Description

Four-high mill working roll and bearing block automatic axial centering attaching/detaching apparatus
Technical field
The utility model relates to a kind of working roll and the bearing block of field of metallurgy, specifically a kind of four-high mill working roll and bearing block automatic axial centering attaching/detaching apparatus.
Background technology
Hot-rolled steel finish rolling four-high mill working roll is changed very frequent, and every 8h approximately changes finish rolling four rolling roller working roll 1-5 covers.Working roll bearing block dismounting task is many, and workload is large, and is artificial replacing.Due to artificial replacing, easily cause working roll and bearing block centering improper, and cause the bearing block distortion because driving lifting assembling easily produces very large impact load, sealing ring damages, and causes bearing block easily to intake at work station, and bearing damage is too fast.Simultaneously, security incident also easily occurs in the assembler when lifting coordinates with the driving work, have larger hidden danger.
Every cover working roll has transmission side and two groups of bearing blocks of fore side, and this two side shaft holder and working roll are not the fixed combination application, and the combining and interchanging application is frequent.Therefore, be difficult to guarantee every cover working roll transmission side bearing block and fore side bearing block axial alignment.If centering is improper, easily produce larger axis when end play is not controlled to power, cause working roll to walk steel unstable, easy badly bleeding phenomenon, and then cause the roll bearing scaling loss; When working roll bearing block is installed on mill housing, only has strict control to every working roll bearing block installation accuracy, the every cover working roll of guarantee transmission side bearing block and fore side bearing block end play.
The utility model content
Technical problem to be solved in the utility model is to propose a kind of four-high mill working roll and bearing block automatic axial centering attaching/detaching apparatus.Axial automatic centering problem in the time of both can having solved while changing the mill housing working roll dismounting between working roll and bearing block, can solve again working roll two side shaft holders fast, the difficult problem of safety automation dismounting.
The technical scheme that the utility model solves above technical problem is: a kind of four-high mill working roll and bearing block automatic axial centering attaching/detaching apparatus are provided, comprise lifting platform and the traversing guide rail that is arranged on described lifting platform both sides, described lifting platform is provided with the lifting leading truck, in described lifting leading truck, hoist cylinder is installed, the V-type supporting seat is installed on described hoist cylinder top, described V-type supporting seat both sides are equipped with carrying roller, and described carrying roller connects through fluid motor-driven; A centering dismounting transverse-moving trolley respectively is installed on the traversing guide rail of both sides, and described centering dismounting transverse-moving trolley is driven by the chassis sideslip oil cylinder that is arranged on described traversing guide rail two ends.
Further restriction technical scheme of the present utility model, aforesaid four-high mill working roll and bearing block automatic axial centering attaching/detaching apparatus, by the chain sprocket transmission, guaranteed the smooth operation of carrying roller between described carrying roller and hydraulic motor.
Further, aforesaid four-high mill working roll and bearing block automatic axial centering attaching/detaching apparatus, described traversing guide rail is provided with limit control.
The beneficial effects of the utility model are: device of the present utility model can be guaranteed four-high mill mill housing working roll bearing block dismounting precision, automatically adjust size and the form and position tolerance of working roll and bearing block, while effectively reducing dismounting to the shock of bearing, reduce the damage of sealing ring, effectively extend the service life of bearing; Can realize off-line dismounting four-high mill working roll bearing block fast and automatically, improve the working roll efficiency of assembling; Direct coordinating operation without the assembler with the driving work, can improve the assembly work safety coefficient.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The A-A generalized section that Fig. 2 is Fig. 1.
The B-B generalized section that Fig. 3 is Fig. 1.
The specific embodiment
Embodiment 1
A kind of four-high mill working roll that the present embodiment provides and bearing block automatic axial centering attaching/detaching apparatus, structure as shown in Figure 1 to Figure 3, comprise lifting platform and the traversing guide rail 7 that is arranged on the lifting platform both sides, lifting platform 2 is provided with lifting leading truck 6, hoist cylinder 5 is installed in the lifting leading truck, V-type supporting seat 8 is installed on hoist cylinder top, and V-type supporting seat 8 both sides are equipped with carrying roller 9, and carrying roller drives and connects through hydraulic motor 10; A centering dismounting transverse-moving trolley (1,3) respectively is installed on the traversing guide rail of both sides, and centering dismounting transverse-moving trolley is driven by the chassis sideslip oil cylinder 4 that is arranged on traversing guide rail two ends.
When this practical embodiment device is used for the dismounting of working roll to be repaired: first by traversing guide rail both sides transverse-moving trolley (1, 3) move 4 tractions to two ends by sideslip oil cylinder, working roll to be repaired is hung on V-type supporting seat 8, regulate lifting platform 2 by hydraulic lifting oil cylinder 5, by working roll roll surface partial fixing on the detent mechanism of lifting platform 2, by sideslip oil cylinder 4, drive transverse-moving trolley to work station again, by regulating hoist cylinder, make two side shaft holders coincide and contact with transverse-moving trolley again, by sideslip oil cylinder 4, drive transverse-moving trolley to two ends again, just two side shaft holders are taken apart.Installation process is substantially contrary with unloading process, and difference is, will consider during the installation shaft bearing that the axial alignment of bearing block and roll is regulated.Wherein vertical direction can first move up and down and carry out coarse adjustment by lift cylinders, then uses the angled-lift splits above transverse-moving trolley to finely tune up and down, and horizontal direction can be regulated by the adjusting bolt above transverse-moving trolley, after centering is suitable, continues to install.
Embodiment 2
This practical embodiment device is for the verifying work roller: by the centering attaching/detaching apparatus of the present embodiment in the verification state, the standard station of setting up by hydraulic system, transverse-moving trolley can be used as the reinspection seat of verifying work roller two side shaft holder radial deflection sizes and form and position tolerance.The complete working roll of assembling is put on the reinspection seat of this four-high mill frame working roll attaching/detaching apparatus, with gap everywhere between accurate testing roller two side shaft holders of clearance gauge and check seat, judge whether the two side shaft holder relative dimensions and the form and position tolerance that are installed on this working roll meet the requirements, for the adjustment of should give that exceeds standard.In like manner, for transmission side and the fore side bearing block of adapted again, after the working roll assembling, should check by this.Regularly use four-high mill frame working roll to recheck seat check working roll two side shaft holder radial deflection size and form and position tolerances, can realize same working roll transmission side fixedly adapted relative to the fore side bearing block.
In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims (3)

1. a four-high mill working roll and bearing block automatic axial centering attaching/detaching apparatus, comprise lifting platform and the traversing guide rail that is arranged on described lifting platform both sides, it is characterized in that: described lifting platform is provided with the lifting leading truck, in described lifting leading truck, hoist cylinder is installed, the V-type supporting seat is installed on described hoist cylinder top, described V-type supporting seat both sides are equipped with carrying roller, and described carrying roller connects through fluid motor-driven; A centering dismounting transverse-moving trolley respectively is installed on the traversing guide rail of both sides, and described centering dismounting transverse-moving trolley is driven by the chassis sideslip oil cylinder that is arranged on described traversing guide rail two ends.
2. four-high mill working roll according to claim 1 and bearing block automatic axial centering attaching/detaching apparatus, is characterized in that: pass through the chain sprocket transmission between described carrying roller and hydraulic motor.
3. four-high mill working roll according to claim 1 and bearing block automatic axial centering attaching/detaching apparatus, it is characterized in that: described traversing guide rail is provided with limit control.
CN 201220680762 2012-12-11 2012-12-11 Automatic axial centering, mounting and dismounting device for working roller and bearing pedestal of four-roller mill Expired - Lifetime CN202951707U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220680762 CN202951707U (en) 2012-12-11 2012-12-11 Automatic axial centering, mounting and dismounting device for working roller and bearing pedestal of four-roller mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220680762 CN202951707U (en) 2012-12-11 2012-12-11 Automatic axial centering, mounting and dismounting device for working roller and bearing pedestal of four-roller mill

Publications (1)

Publication Number Publication Date
CN202951707U true CN202951707U (en) 2013-05-29

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CN 201220680762 Expired - Lifetime CN202951707U (en) 2012-12-11 2012-12-11 Automatic axial centering, mounting and dismounting device for working roller and bearing pedestal of four-roller mill

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103752616A (en) * 2014-01-20 2014-04-30 辽阳泰达重型机械厂 Roller bearing block detacher
CN104028558A (en) * 2014-06-19 2014-09-10 马钢(集团)控股有限公司 Center line alignment device for frame and gearbox drive shaft in rolling mill and alignment method employing same
CN105521998A (en) * 2016-01-29 2016-04-27 灵宝金源朝辉铜业有限公司 Disassembling and assembling device for parallel dual-supporting roller shaft bearings
CN106001125A (en) * 2016-07-26 2016-10-12 天津天重中直科技工程有限公司 Double-station universal type hydraulic automatic roller detaching equipment
CN108568651A (en) * 2018-06-26 2018-09-25 中铝瑞闽股份有限公司 The straightening roll attaching/detaching apparatus and application method of multi-roll straightening machine
CN108889782A (en) * 2018-07-18 2018-11-27 北京京诚之星科技开发有限公司 A kind of working roll bearing block attaching/detaching apparatus
CN109013708A (en) * 2018-09-29 2018-12-18 天津天重中直科技工程有限公司 A kind of novel middle width strip steel rider system disassembly robot

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103752616A (en) * 2014-01-20 2014-04-30 辽阳泰达重型机械厂 Roller bearing block detacher
CN103752616B (en) * 2014-01-20 2015-11-25 辽阳泰达重型机械厂 Disassembling and assembling machine for roll bearing block
CN104028558A (en) * 2014-06-19 2014-09-10 马钢(集团)控股有限公司 Center line alignment device for frame and gearbox drive shaft in rolling mill and alignment method employing same
CN104028558B (en) * 2014-06-19 2016-01-20 马钢(集团)控股有限公司 A kind of rolling-mill housing and gearbox drive shaft centre line alignment device and apply the method for described device centering
CN105521998A (en) * 2016-01-29 2016-04-27 灵宝金源朝辉铜业有限公司 Disassembling and assembling device for parallel dual-supporting roller shaft bearings
CN106001125A (en) * 2016-07-26 2016-10-12 天津天重中直科技工程有限公司 Double-station universal type hydraulic automatic roller detaching equipment
CN108568651A (en) * 2018-06-26 2018-09-25 中铝瑞闽股份有限公司 The straightening roll attaching/detaching apparatus and application method of multi-roll straightening machine
CN108889782A (en) * 2018-07-18 2018-11-27 北京京诚之星科技开发有限公司 A kind of working roll bearing block attaching/detaching apparatus
CN108889782B (en) * 2018-07-18 2023-10-13 北京京诚之星科技开发有限公司 Dismounting device for working roll bearing pedestal
CN109013708A (en) * 2018-09-29 2018-12-18 天津天重中直科技工程有限公司 A kind of novel middle width strip steel rider system disassembly robot

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Granted publication date: 20130529