CN201316744Y

CN201316744Y - Three-roller forming machine coaxial clearance automatic compensator

Info

Publication number: CN201316744Y
Application number: CNU200820157535XU
Authority: CN
Inventors: 张协
Original assignee: Shanghai Baosteel Equipment Maintenance Co Ltd
Current assignee: Shanghai Baosteel Equipment Maintenance Co Ltd
Priority date: 2008-12-22
Filing date: 2008-12-22
Publication date: 2009-09-30
Anticipated expiration: 2018-12-22

Abstract

The utility model discloses a three-roller forming machine coaxial clearance automatic compensator, which comprises a frame and a copper coat connected with the frame; the three-roller forming machine coaxial clearance automatic compensator also comprises four positioning dowels, four elastomers and two bolts; the connection end surfaces of the frame and the copper coat are respectively and uniformly provided with six round holes along the circumferential direction; two opposite holes on the frame are through holes and the rest are stepped holes; the two opposite holes on the copper coat are screwed holes and the rest are deep holes; one ends of the four positioning dowels are respectively arranged in the four stepped holes and are in interference fit; the other ends of the four positioning dowels are arranged in the four deep holes and are matched in small clearance; the four elastomers are respectively arranged in the four stepped holes and sleeved on the outer circles of the positioning dowels; the two bolts are respectively arranged in the two through holes of the frame and screwed into the two screwed holes of the copper coat; the frame and the copper coat are connected by the bolts, the elastomers and the positioning dowels. The device is used to avoid the abrasion of the frame and the copper coat, reduce the linear friction wastage between matching parts, the frame and the copper coat as well as improve the service life and the central locating precision of the three-roller forming machine.

Description

Three roller centring machine end play autocompensation installations

Technical field

The utility model relates to a kind of three roller centring machine end play autocompensation installations.

Background technology

Three roller centring machines are key equipments that tube rolling is produced, adopt bolting to be connected between its frame and copper sheathing, copper sheathing outside connecting crank copper ring and crank etc., usually in three roller centring machine structures, consider to be convenient to install and the heat clamping of rising when preventing work, leave certain end play between its distributor, crank etc. and the frame copper sheathing, connect because of directly adopting bolt, axial distance and direction all can not be adjusted.After the copper sheathing wearing and tearing, just need change, be the key factor that restricted for three roller centring machine service lifes.In addition, violent in the equipment operation process because of vibrating, need easily to take place between counterpart and copper sheathing the inclination of small scale, cause local contact, produce the line frictional dissipation, influence three roller centring machine centralized positioning precision.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of three roller centring machine end play autocompensation installations, utilize this device to avoid the wearing and tearing of frame copper sheathing, reduce the line frictional dissipation between counterpart and frame copper sheathing, improved the service life and the centralized positioning precision of three roller centring machines.

For solving the problems of the technologies described above, the utility model three roller centring machine end play autocompensation installations comprise frame and copper sheathing, described frame end face connects described copper sheathing end face, also comprise four alignment pins, four elastomers and two bolts, the end face that is connected of described frame and copper sheathing along the circumferential direction all is arranged with six circular holes respectively, relative two in position are through holes in six circular holes on the described frame, all the other four is shoulder hole, relative two in position are screws in six circular holes on the described copper sheathing, all the other four is deep hole, described four alignment pin one ends are located at the interior and interference fit of aperture of four shoulder holes of described frame respectively, the other end of described four alignment pins lays respectively at the interior and little matched in clearance of four deep holes of described copper sheathing, described four elastomers lay respectively in the macropore of four shoulder holes of described frame and are placed in the outer ring of described alignment pin, described four elastomer one ends peak at described copper sheathing end face, described two bolts lay respectively in two through holes of described frame and are screwed in two screws of described copper sheathing, and described frame and copper sheathing pass through two bolts, four elastomers are connected with four alignment pins.

For reaching good clearance automatic compensation effect, above-mentioned elastomer adopts spring.

Because the utility model three roller centring machine end play autocompensation installations have adopted technique scheme, promptly distinguish along the circumferential direction uniform six circular holes at the end face that is connected of three roller centring machine frames and copper sheathing, two relative circular holes of position are through holes on the frame, all the other are shoulder holes, two relative circular holes of position are screwed holes on the copper sheathing, all the other are deep holes, the through hole that two bolts penetrate frame is screwed into the screwed hole of copper sheathing, four alignment pin one ends are positioned at the aperture and the interference fit of four shoulder holes of frame, its other end is positioned at four deep holes and the little matched in clearance of copper sheathing, to guarantee the free play of copper sheathing energy; Four elastomers are positioned at the macropore of four shoulder holes on the frame and are placed in the alignment pin outer ring, and the one end peaks at the copper sheathing end face; Frame is connected with four alignment pins by two bolts with copper sheathing; Utilize this device to avoid the wearing and tearing of frame copper sheathing, reduced the line frictional dissipation between counterpart and frame copper sheathing, improved the service life and the centralized positioning precision of three roller centring machines.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and embodiments:

Fig. 1 is the structural representation of the utility model three roller centring machine end play autocompensation installations,

Fig. 2 is that the A-A of Fig. 1 is to view.

The specific embodiment

As depicted in figs. 1 and 2, three roller centring machines comprise frame 5, copper sheathing 3, crank copper ring 4, axle 6 and crank 8; The utility model three roller centring machine end play autocompensation installations comprise frame 5 and copper sheathing 3, and described frame 5 end faces connect described copper sheathing 3 end faces, also comprise four alignment pins 7, four elastomers 2 and two bolts 1; The end face that is connected of described frame 5 and copper sheathing 3 along the circumferential direction all is arranged with six circular holes respectively, relative two in position are through holes 9 in six circular holes on the described frame, all the other four is shoulder hole 51, relative two in position are screws 31 in six circular holes on the described copper sheathing 3, all the other four is deep hole, described four alignment pin 7 one ends are located at the interior and interference fit of aperture of four shoulder holes 51 of described frame 5 respectively, the other end of described four alignment pins 7 lays respectively at the interior and little matched in clearance of four deep holes of described copper sheathing 3, described four elastomers 2 lay respectively in the macropore of four shoulder holes 51 of described frame 5 and are placed in the outer ring of described alignment pin 7, described four elastomer 2 one ends peak at described copper sheathing 3 end faces, described two bolts 1 lay respectively in two through holes 9 of described frame 5 and are screwed in two screws 31 of described copper sheathing 3, and described frame 5 and copper sheathing 3 are by two bolts 1, four elastomers 2 are connected with four alignment pins 7.

For reaching good clearance automatic compensation effect, above-mentioned elastomer 2 adopts spring.

During the assembling of this device, utilize two bolts, after crank is put into bolt is unscrewed, rely on four springs that copper sheathing is ejected, the copper ring on copper sheathing end face and the crank is tightly touched four spring compressions in the frame.Equipment in use for some time, the copper sheathing end wear under the effect of spring, makes that the copper ring on copper sheathing end face and the crank still keeps fitting, and plays the clearance automatic compensation effect.

The utility model three roller centring machine end play autocompensation installations are distinguished along the circumferential direction uniform six circular holes at the end face that is connected of three roller centring machine frames and copper sheathing, and two relative circular holes of position are through holes on the frame, and all the other are shoulder holes; Two relative circular holes of position are screws on the copper sheathing, and all the other are deep holes; The through hole that two bolts penetrate frame is screwed into the screw of copper sheathing, and four alignment pin one ends are positioned at the aperture and the interference fit of four shoulder holes of frame, and four deep holes that its other end is positioned at copper sheathing are little matched in clearance also; Four elastomers are positioned at the macropore of four shoulder holes on the frame and are placed in the alignment pin outer ring; Frame is connected with four alignment pins by two bolts, four elastomers with copper sheathing; This device discharges the pulling force of two bolts after installing, this moment, copper sheathing was pressed on the crank copper ring by four elastomeric pressure; During the operation of three roller centring machines, the axial location of copper sheathing is subjected to four elastomeric adjustment and is compensated automatically, has avoided former in the rigidly connected defective of bolt; Utilize this device to avoid the wearing and tearing of frame copper sheathing, reduced the line frictional dissipation between counterpart and frame copper sheathing, improved the service life and the centralized positioning precision of three roller centring machines.

Claims

1, a kind of three roller centring machine end play autocompensation installations, comprise frame and copper sheathing, described frame end face connects described copper sheathing end face, it is characterized in that: also comprise four alignment pins, four elastomers and two bolts, the end face that is connected of described frame and copper sheathing along the circumferential direction all is arranged with six circular holes respectively, relative two in position are through holes in six circular holes on the described frame, all the other four is shoulder hole, relative two in position are screws in six circular holes on the described copper sheathing, all the other four is deep hole, described four alignment pin one ends are located at the interior and interference fit of aperture of four shoulder holes of described frame respectively, the other end of described four alignment pins lays respectively at the interior and little matched in clearance of four deep holes of described copper sheathing, described four elastomers lay respectively in the macropore of four shoulder holes of described frame and are placed in the outer ring of described alignment pin, described four elastomer one ends peak at described copper sheathing end face, described two bolts lay respectively in two through holes of described frame and are screwed in two screws of described copper sheathing, and described frame and copper sheathing pass through two bolts, four elastomers are connected with four alignment pins.

2, three roller centring machine end play autocompensation installations according to claim 1, it is characterized in that: described elastomer is a spring.