CN2261894Y - Spring constant force balance quick sizing mill for changing roll - Google Patents

Spring constant force balance quick sizing mill for changing roll Download PDF

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Publication number
CN2261894Y
CN2261894Y CN 96233545 CN96233545U CN2261894Y CN 2261894 Y CN2261894 Y CN 2261894Y CN 96233545 CN96233545 CN 96233545 CN 96233545 U CN96233545 U CN 96233545U CN 2261894 Y CN2261894 Y CN 2261894Y
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CN
China
Prior art keywords
gear
roll
spiro rod
sizing mill
drive shaft
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 96233545
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Chinese (zh)
Inventor
余家庆
李波
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CISDI Engineering Co Ltd
Original Assignee
CHONGQING IRON STEEL DESIGN
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Publication date
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Priority to CN 96233545 priority Critical patent/CN2261894Y/en
Application granted granted Critical
Publication of CN2261894Y publication Critical patent/CN2261894Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a spring constant force balance quick sizing mill for changing a roll. Primarily, a driving gear system which is composed of a pressing screw rod gear, a balance spring nut gear, a balance spring nut driving gear and a pressing screw rod driving gear is arranged in a spring constant force balance device. A pressing screw rod penetrates through a pressing nut and is connected with the pressing screw rod gear through splines. A screw rod of a balance suspender penetrates through the balance spring nut gear with a screw driving mode. The spring constant force balance device causes the balance force not to change in the process of spacing adjustment of the roll. The utility model has the advantages of the reduction of pressing force, labour saving, time saving and the enhancement of labour productivity, and can be widely used for a steel tube sizing mill.

Description

Spring constant force balance fast roll changing sizing mill
The utility model belongs to the rolling technical field of metal, particularly a kind of spring constant force balance fast roll changing sizing mill.
Steel pipe needs to decide the steel pipe of tube reducing after hot rolling, with tube reducing, full circle, sizing, roll into final fished pipe through sizing mill.Sizing mill is when roll change in domestic original Φ 140, Φ 100, Φ 76 seamless steel tubing mills, at first manually each frame hold-down screw is dismantled, support or hang final drive shaft, throw off the shaft coupling of roll and final drive shaft, one by one frame and roll are hung support with crane.Respectively each new frame and roll are hung with crane then and be placed on the support, manually fix each frame, connect roll and final drive shaft, shed the final drive shaft support, adjust, check whether each breast roller center aims at rolling centerline.This type of sizing mill is when adjusting roll centre-to-centre spacing, and spring force reduces with two roll centre-to-centre spacing and increases, and requires electronicly to depress transmission enough big ability must be arranged, during operating cost, effort.Some little sizing mills adopt adjusts roll centre-to-centre spacing manually, and labor strength is huge.
The purpose of this utility model is to provide a kind of spring constant force balance fast roll changing sizing mill, makes roller replacing operation time saving and energy saving, and is quick and convenient, alleviates labor strength, improves operating condition, raises labour productivity.
The purpose of this utility model is achieved through the following technical solutions: spring constant force balance fast roll changing sizing mill is mainly by pressing beam to compress hydraulic means downwards, axial compression frame hydraulic means compresses hanging beam, frame, the final drive shaft bracket lifting device, spring constant force bascule, roll mandrel shaft coupling, final drive shaft reduction device, roll, reduction formula final drive shaft, shaft coupling, the sizing mill support is formed.Roll and spring constant force bascule are installed in each frame, and frame is put on the sizing mill support; Press beam to compress hydraulic means downwards and be installed on sizing mill support two ends, guarantee that compressing hanging beam is pressed in each frame downwards on the sizing mill support; Axial compression frame hydraulic means is installed on an end of sizing mill support, makes between each frame axially to be fixed; Reduction formula final drive shaft one end and shaft coupling link, and the other end and roll mandrel shaft coupling link; Final drive shaft reduction device is installed on sizing mill support side, the roll mandrel shaft coupling is closed or throws off; The final drive shaft bracket lifting device is installed on the sizing mill support, when changing frame, holds up reduction formula final drive shaft; Spring constant force bascule comprises depress spiro rod, the balance suspension rod, balancing spring, balancing spring nut gear and balance spring nut travelling gear, depress spiro rod gear and several parts of depress spiro rod travelling gear, depress spiro rod gear and balancing spring nut gear connect into a transfer gear train engaged transmission by balancing spring nut travelling gear, depress spiro rod travelling gear.The depress spiro rod travelling gear is coaxial with balancing spring nut travelling gear, and is coupled to rigid body with axle respectively.Depress spiro rod one end withstands roll chock, and the other end passes screw box and is connected with the depress spiro rod gear spline, and the relative motion of depress spiro rod and screw box makes roll rotate and vertical lift with the depress spiro rod gear.Screw rod one end and the roll chock of balance suspension rod are fixedly connected, and the other end passes the balancing spring nut gear with the screw thread kind of drive, and rotate and vertical lift with the balancing spring nut gear.
In technique scheme, once load and unload several frames with compressing hanging beam, the employing hydraulic means unclamps each frame simultaneously or is pressed on the support, and reduction formula final drive shaft is thrown off automatically by hydraulic means or closed, when adjusting roll shop building centre-to-centre spacing, equilibrant force is constant, so laborsaving saving time is quick and convenient, has alleviated labor strength, improve operating condition, improved labor productivity.
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is described further.
Fig. 1 is a spring constant force balance device structure schematic diagram
Fig. 2 is that spring constant force balance roll device A is to view
Fig. 3 is a sizing mill general assembly schematic diagram
Fig. 4 is a sizing mill general assembly B-B generalized section
1 is depress spiro rod among the figure, and 2 is the balance suspension rod, and 3 is balancing spring, 4 for pressing beam to compress hydraulic means downwards, 5 is axial compression frame hydraulic means, and 6 for compressing hanging beam, and 7 is frame, 8 is the final drive shaft bracket lifting device, 9 is spring constant force bascule, and 10 is the roll mandrel shaft coupling, and 11 is final drive shaft reduction device, 12 is roll, 13 are reduction formula final drive shaft, and 14 is shaft coupling, and 15 is the balancing spring nut gear, 16 is the depress spiro rod gear, 17 is balancing spring nut travelling gear, and 18 is the depress spiro rod travelling gear, and 19 is the sizing mill support, 20 is roll chock, and 21 is screw box.
Embodiment of the present utility model is five frame spring constant force balance fast roll changing sizing mills, by pressing beam to compress hydraulic means 4 downwards, axial compression frame hydraulic means 5, compress hanging beam 6, frame 7, final drive shaft bracket lifting device 8, spring constant force bascule 9, roll mandrel shaft coupling 10, final drive shaft reduction device 11, roll 12, reduction formula final drive shaft 13, shaft coupling 14, sizing mill support 19 is formed.Roll 12 is installed in each frame 7 with spring constant force bascule 9, and frame 7 is put on the sizing mill support 19; Press beam to compress hydraulic means 4 downwards and be installed on sizing mill support 19 two ends; Axial compression frame hydraulic means 5 is installed on an end of sizing mill support 19; Reduction formula final drive shaft 13 1 ends and shaft coupling 14 link, and the other end and roll mandrel shaft coupling 10 link; Final drive shaft reduction device 11 is installed on sizing mill support 19 sides; Final drive shaft bracket lifting device 8 is installed on sizing mill support 19.Spring constant force bascule 9 comprises depress spiro rod 1, balance suspension rod 2, balancing spring 3, balancing spring nut gear 15 and balance spring nut travelling gear 17, depress spiro rod gear 16 and depress spiro rod travelling gear more than 18 parts, depress spiro rod gear 16 connects into a transfer gear train engaged transmission with balancing spring nut gear 15 by balancing spring nut travelling gear 17, depress spiro rod travelling gear 18, depress spiro rod travelling gear 18 is coaxial with balancing spring nut travelling gear 17, and is coupled to rigid body with axle respectively.Depress spiro rod 1 one ends withstand roll chock 20, and the other end passes screw box 21 and is connected with depress spiro rod gear 16 splines, and depress spiro rod 1 makes roll 12 rotate and vertical lift with depress spiro rod gear 16 with the relative motion of screw box 21.Screw rod one end and the roll chock 20 of balance suspension rod 2 are fixedly connected, and the other end passes balancing spring nut gear 15 with the screw thread kind of drive, and rotate and vertical lift with balancing spring nut gear 15.
When carrying out roll change, hydraulic means 4,5 axially and downward compaction direction unclamp each frame 7 on support 19, hydraulic means rises final drive shaft bracket lifting device 8 and holds up reduction formula final drive shaft 13, final drive shaft reduction device 11 throws off roll mandrel shaft coupling 10 and reduction formula final drive shaft 13 13 withdrawals of reduction formula final drive shaft, again according to the size of workshop hoisting power, with compression beam 6 several frames 7 of once removing stage makeup and costume, change new frame 7 back hydraulic means 4,5 are pressed in each frame 7 on the support 19 in axial and downward compaction direction again simultaneously, final drive shaft reduction device 11 closes reduction formula final drive shaft 13 and roll mandrel shaft coupling 10, hydraulic means is fallen final drive shaft bracket lifting device 8, balancing spring nut travelling gear 17 in the electronic or manual drives spring constant force bascule 9 rotates, its coaxial depress spiro rod travelling gear 18 drives depress spiro rod gear 16 and rotates, make depress spiro rod 1 vertical up-or-down movement, handle roll 12 and move up and down adjustment roll centre-to-centre spacing, balancing spring nut travelling gear 17 rotates also, and 15 rotations of driven equilibrium spring nut gear make 2 vertical up-or-down movements of balance suspension rod, make in whole adjustment process balancing spring 3 length constant, equilibrant force is constant, so reduced the power of depressing greatly, regulate the distance of roll shop building fast and easily, realize fast roll changing.

Claims (1)

  1. A kind of spring constant force balance fast roll changing sizing mill is mainly by pressing beam to compress hydraulic means (4) downwards, axial compression frame hydraulic means (5), compress hanging beam (6), frame (7), final drive shaft bracket lifting device (8), spring constant force bascule (9), roll mandrel shaft coupling (10), final drive shaft reduction device (11), roll (12), reduction formula final drive shaft (13), shaft coupling (14), sizing mill support (19) is formed, and roll (12) is installed in each frame (7) with spring constant force bascule (9), and frame (7) is put on the sizing mill support (19); Press beam to compress hydraulic means (4) downwards and be installed on sizing mill support (19) two ends; Axial compression frame hydraulic means (5) is installed on an end of sizing mill support (19); Reduction formula final drive shaft (13) one ends and shaft coupling (14) link, and the other end and roll mandrel shaft coupling (10) link; Final drive shaft reduction device (11) is installed on sizing mill support (19) side; Final drive shaft bracket lifting device (8) is installed on sizing mill support (19); It is characterized in that spring constant force bascule (9) comprises depress spiro rod (1), balance suspension rod (2), balancing spring (3), balancing spring nut gear (15) and balance spring nut travelling gear (17), depress spiro rod gear (16) and depress spiro rod travelling gear (18), depress several parts of gear (21), depress spiro rod gear (16) passes through balancing spring nut travelling gear (17) with balancing spring nut gear (15), depress spiro rod travelling gear (18) connects into a transfer gear train engaged transmission, depress spiro rod travelling gear (18) is coaxial with balancing spring nut travelling gear (17), and be coupled to rigid body with axle respectively, depress spiro rod (1) one end withstands roll chock (20), the other end passes screw box (21) and is connected with depress spiro rod gear (16) spline, depress spiro rod (1) makes roll (12) rotate and vertical lift with depress spiro rod gear (16) with the relative motion of screw box (21), screw rod one end and the roll chock (20) of balance suspension rod (2) are fixedly connected, the other end passes balancing spring nut gear (15) with the screw thread kind of drive, and rotates and vertical lift with balancing spring nut gear (15).
CN 96233545 1996-08-07 1996-08-07 Spring constant force balance quick sizing mill for changing roll Expired - Lifetime CN2261894Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96233545 CN2261894Y (en) 1996-08-07 1996-08-07 Spring constant force balance quick sizing mill for changing roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96233545 CN2261894Y (en) 1996-08-07 1996-08-07 Spring constant force balance quick sizing mill for changing roll

Publications (1)

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CN2261894Y true CN2261894Y (en) 1997-09-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351024C (en) * 2005-12-06 2007-11-28 太原市通泽成套设备有限公司 Large-diameter seamless steel pipe sizing-reducing mill
CN106975661A (en) * 2017-04-27 2017-07-25 山东钢铁股份有限公司 A kind of three roll shape steel roughing mill upper roller spring equalizing devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351024C (en) * 2005-12-06 2007-11-28 太原市通泽成套设备有限公司 Large-diameter seamless steel pipe sizing-reducing mill
CN106975661A (en) * 2017-04-27 2017-07-25 山东钢铁股份有限公司 A kind of three roll shape steel roughing mill upper roller spring equalizing devices
CN106975661B (en) * 2017-04-27 2019-04-30 山东钢铁股份有限公司 A kind of three roll shape steel roughing mill upper roller spring equalizing devices

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Legal Events

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

Owner name: ZHONGYE SAIDI ENGINEERING TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: CHONGQING IRON AND STEEL DESIGN INST., MINISTRY OF METALLURGICAL INDUSTRY

Effective date: 20030919

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

Effective date of registration: 20030919

Patentee after: Zhongye Saide Engineering Technology Co., Ltd.

Patentee before: Chongqing Iron and Steel Design Inst., Min MI

C17 Cessation of patent right
CX01 Expiry of patent term