A lower roll angle adjustment device for tube and bar straightening machine
An angle adjustment device and straightening machine technology, which is applied in the field of tube and bar straightening machines, can solve the problems that affect the straightening accuracy of tubes and bars, large matching clearance, and difficulty in obtaining the adjustment accuracy of straightening rollers, etc., and achieve cost Low, overcome the effect of large fit gap and simple mechanism
Inactive Publication Date: 2015-10-28
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
[0002] At present, the angle adjustment device of the lower roll of the tube and bar straightening machine at home and abroad generally adopts a worm gear mechanism, which is locked with a nut after adjustment. The disadvantage of this mechanism that uses worm gear transmission for angle adjustment is that the matching clearance is often large , it is difficult to obtain the ideal adjustment accuracy of straightening rollers, which ultimately affects the requirements for straightening accuracy of tubes and bars
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[0007] Specific implementation methods: such as figure 1 As shown, the motor 1 shaft has an encoder EAM58C, and the straightening angle of the lower straightening roller that needs to be adjusted can be accurately positioned in advance through the encoder. When the straightening angle needs to be adjusted, start the motor 1 to drive the bevel gear drive 3, Drive the first and second cylindrical gears 5,6 to rotate, drive the sector gear 8 installed on the roller seat 12 to rotate, and drive the roller disc 9 and the lower straightening roller 11 to rotate together to achieve the purpose of adjusting the angle of the lower straightening roller. After adjusting the angle of the lower straightening roller, the roller seat 12 is locked by the hydraulic plunger type locking cylinder 15, which ensures the stability of the angle adjustment position. When the straightening angle needs to be readjusted, first adjust the hydraulic plunger type locking cylinder 15 in reverse to unlock th...
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The invention discloses a lower roller angle adjustment device of a pipe / bar straightening machine and belongs to the technical field of pipe / bar straightening machines. The lower roller angle adjustment device comprises a power transmission mechanism, a lower straightening roller angle adjustment mechanism and a locking mechanism and is characterized in that a motor (1) with an encoder drives a first cylindrical gear (5) and a second cylindrical gear (6) which are arranged on a support (2) through a bevel gear transmission (3) arranged on the support (2); the second cylindrical gear (6) is meshed with a fan-shaped gear (8) arranged on a roller seat (12); the roller seat (12) is arranged on a machine seat (18) through a thrust bearing (14); a roller disk (9) is connected to the roller seat (12) through a bolt (13); a lower straightening roller (11) is arranged on the roller disk (9) through a left bearing pedestal (10) and a right bearing pedestal (10'); and the arc surface of the top of a piston rod (16) of a hydraulic locking cylinder (15) arranged on the machine seat (18) abuts against the circumferential surface of the roller seat (12). The lower roller angle adjustment device has the advantages of quickness, high angle adjustment precision, large angle adjustment range and convenience in equipment mounting.
Description
technical field [0001] The invention belongs to the technical field of pipe and rod straightening machines, and in particular relates to a lower roll angle adjustment device of a pipe and rod straightening machine. technical background [0002] At present, the angle adjustment device of the lower roll of the tube and bar straightening machine at home and abroad generally adopts a worm gear mechanism, which is locked with a nut after adjustment. The disadvantage of this mechanism that uses worm gear transmission for angle adjustment is that the matching clearance is often large , it is difficult to obtain the ideal adjustment accuracy of straightening rollers, which ultimately affects the requirements for straightening accuracy of tubes and bars. Contents of the invention [0003] The purpose of the present invention is to provide a new structure of the angle adjustment device for the lower roll of the tube and bar straightening machine, which can effectively overcome the s...
Claims
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IPC IPC(8): B21D3/02
Inventor 范沁红楚志兵李丹任志峰马立峰黄庆学
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY