A three-roller centering device
A technology of centering device and centering roller, applied in the direction of guide/positioning/alignment device, etc., can solve the problems of accurate centering accuracy, large centering error, large bearing loss at the connecting rod connection, etc., to achieve accurate centering The effect of high durability, low wear, extended service life and work rate
Active Publication Date: 2018-06-19
天津君晟科技发展有限公司
View PDF9 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The conventional three-roller centering device is a four-bar linkage mechanism. Due to the limitation of the four-bar linkage mechanism, the centering accuracy is difficult to be accurate enough, especially when the diameter of the steel pipe changes, the centering error will be greater; in addition, the connecting rod connection The bearing loss at the location is relatively large, which affects the service life and operating rate of the three-roller centering device
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] In order to further understand the content of the invention, characteristics and effects of the present invention, the following examples are described in detail as follows:
[0017] See figure 1 and image 3 , the present invention comprises a frame 8, on which an upper rotating shaft 16, a lower rotating shaft 9 and an intermediate rotating shaft 3 are horizontally arranged; the front fixed sleeve of the upper rotating shaft 16 is provided with an upper swing arm 15, and the rear fixed sleeve is provided with an upper gear 18; The front fixed sleeve of the lower shaft 9 is provided with a lower swing arm 10, and the back fixed sleeve is provided with a lower gear 20; the front fixed sleeve of the intermediate shaft is provided with a "Z"-shaped transmission frame 4, and the back fixed sleeve is provided with an intermediate gear 19; the upper gear 18 And lower gear 20 all meshes with intermediate gear 19, and the number of teeth of above-mentioned three gears and mod...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of centering equipment for producing seamless steel pipes, and particularly relates to a three-roller centering device. The three-roller centering device comprises a machine frame, wherein an upper rotating shaft, a lower rotating shaft and an intermediate rotating shaft are arranged on the machine frame; an upper swinging arm is arranged on the front surface of the upper rotating shaft in a sleeving manner, and an upper gear is arranged on the back surface in the sleeving manner; a lower swinging arm is arranged on the front surface of the lower rotating shaft in the sleeving manner, and a lower gear is arranged on the back surface in the sleeving manner; a transmission frame is arranged on the front surface of the intermediate rotating shaft in the sleeving manner, and an intermediate gear is arranged on the back surface; the upper and lower gears are meshed with the intermediate gear, and the three gears have the same tooth number and modulus. The three-roller centering device further comprises an intermediate swinging arm, wherein corresponding centering rollers are arranged at the outer ends of the three swinging arms; one end of the transmission frame is fixedly connected with the front end of the intermediate swinging arm, a large-opening hydraulic cylinder is arranged at the other end of the transmission frame in a hinging manner, and a piston rod of the large-opening hydraulic cylinder is hinged to the middle part of the intermediate swinging arm; a telescopic hydraulic cylinder is further arranged on the machine frame, and a piston rod of the telescopic hydraulic cylinder is hinged to the front end of the intermediate swinging arm.
Description
technical field [0001] The invention belongs to the technical field of centering equipment for seamless steel pipe production, and in particular relates to a three-roller centering device. Background technique [0002] In the seamless steel pipe production process, piercing is an indispensable process, in which a three-roller centering device for centering the steel pipe and the ejector rod is required. In some rolling mills, a three-roll centering device is also required to complete the centering operation of the steel pipe and the mandrel. [0003] The conventional three-roller centering device is a four-bar linkage mechanism. Due to the limitation of the four-bar linkage mechanism, the centering accuracy is difficult to be accurate enough, especially when the diameter of the steel pipe changes, the centering error will be greater; in addition, the connecting rod connection The bearing loss at the position is relatively large, which affects the service life and operating ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B21B39/16
CPCB21B39/16
Inventor 靳祖福李永刚
Owner 天津君晟科技发展有限公司