CN202290728U - Rolling device of hot-rolled pipe machine - Google Patents
Rolling device of hot-rolled pipe machine Download PDFInfo
- Publication number
- CN202290728U CN202290728U CN2011203494359U CN201120349435U CN202290728U CN 202290728 U CN202290728 U CN 202290728U CN 2011203494359 U CN2011203494359 U CN 2011203494359U CN 201120349435 U CN201120349435 U CN 201120349435U CN 202290728 U CN202290728 U CN 202290728U
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- driving shaft
- driven shafts
- frame
- hot
- rolling device
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Abstract
The utility model relates to a rolling device of a hot-rolled pipe machine. The rolling device mainly solves the problems of low bearing capacity, huge structure and large occupied space of the conventional sizing rolling device. The rolling device is characterized in that: three rollers (4) are fixed on a driving shaft (2) and two driven shafts (3) respectively; bearings (5) are arranged between the driving shaft (2) and a machine frame (1) and between the two driven shafts (3) and the machine frame (1); bevel gears (6) are arranged on the driving shaft (2) and the two driven shafts (3) respectively; two ends of the driving shaft (2) transfer torque in a ratio of 1:1 between the two driven shafts (3) through two pairs of same bevel gears (6); and the driving shaft (2) rotates to drive the two driven shafts (3) to synchronously rotate, so that the three rollers (4) rotate towards rolling holes simultaneously. The rolling device of the hot-rolled pipe machine increases the outer diameters of the driving shaft and the driven shafts without increasing the appearance size and has the characteristics of compact structure, high bearing capacity and small occupied space.
Description
Technical field
The utility model relates to a kind of precision rolling device of seamless steel pipe, is specifically related to a kind of roll device of hot-rolled pipe machine.
Background technology
Existing sizing roll device mainly is made up of frame, driving shaft, two driven shafts and roll; Driving shaft and two driven shafts of fixing distribution triangular in shape on the frame, driving shaft and two driven shafts are installed bearing outward, and bearing is installed axle sleeve outward; Stationary roll on axle sleeve; The outer wall of roll is provided with arc groove, forms after the groove correspondence on three rolls and rolls the hole, and the axle sleeve two ends on the driving shaft are respectively through 1:1 transmission moment of torsion between the axle sleeve on two pairs of identical bevel gears and two driven shafts; Axle sleeve on the driving shaft rotates the axle sleeve that drives on two driven shafts and rotates synchronously, and three rolls are rotated in rolling the hole simultaneously.Because roll-force is bigger, can carry the required moment of torsion of rolling seamless steel pipe in order to make axle sleeve, just must increase the diameter of axle sleeve, become huge with regard to the structure that makes the sizing roll device like this, it is big to take up room, and is unfavorable for the seamless steel pipe precision rolling.
The utility model content
Existing sizing roll device bearing capacity is low, structure is huge and take up room big deficiency in order to overcome; The utility model provides a kind of roll device of hot-rolled pipe machine; The roll device of this hot-rolled pipe machine has increased the external diameter of driving shaft and two driven shafts when not increasing appearance and size; Improve bearing capacity, had compact conformation, bearing capacity height and the little characteristics that take up room.
The technical scheme of the utility model is: the roll device of this hot-rolled pipe machine comprises that frame, driving shaft, two driven shafts and roll form; Driving shaft and two driven shaft distributions triangular in shape; The outer wall of roll is provided with arc groove; Form after the groove correspondence on three rolls and roll the hole, three rolls are separately fixed on driving shaft and two driven shafts, between driving shaft and the frame and between two driven shafts and the frame bearing are installed all; Described each bevel gear is installed in respectively on driving shaft and two driven shafts; Moment of torsion is transmitted through 1:1 between the two pairs of identical bevel gears and two driven shafts respectively in the two ends of driving shaft, and two driven shafts of drive shaft turns drive rotate synchronously, and three rolls are rotated in rolling the hole simultaneously.
One end of described driving shaft stretches out outside the frame and coupling sleeve is installed, and described coupling sleeve is provided with external splines, and described external splines is circular arc along its length.
Symmetrical along the center of frame on the described frame with two end faces of shaft center line parallel.
The utlity model has following beneficial effect: owing to take such scheme, removed the axle sleeve in traditional sizing roll device, bearing is directly installed on the frame; Bevel gear and roll directly are fixed on driving shaft and two driven shafts; When not increasing appearance and size, increased the external diameter of driving shaft and two driven shafts, improved bearing capacity, whole assembling back compact conformation; It is little to take up room, and is beneficial to the precision rolling of seamless steel pipe.
Description of drawings
Accompanying drawing 1 is the structure cutaway view of the utility model.
1-frame among the figure, 2-driving shaft, 3-driven shaft, 4-roll, 5-bearing, 6-bevel gear, 7-groove, 8-coupling sleeve, 9-external splines.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1; The roll device of this hot-rolled pipe machine comprises that frame 1, driving shaft 2, two driven shafts 3 and roll 4 form; The hole is rolled in the groove 7 corresponding back formation that driving shaft 2 and two driven shaft 3 distributions triangular in shape, the outer wall of roll 4 are provided with on 7, three rolls 4 of arc groove; Three rolls 4 are separately fixed on driving shaft 2 and two driven shafts 3; Between driving shaft 3 and the frame 1 and between two driven shafts 3 and the frame 1 bearing 5 is installed all, described each bevel gear 6 is installed in respectively on driving shaft 2 and two driven shafts 3, and the two ends of driving shaft 2 are respectively through 1:1 transmission moment of torsion between two pairs of identical bevel gears 6 and two driven shafts 3; Driving shaft 2 rotates two driven shafts 3 of drive and rotates synchronously, and three rolls 4 are rotated in rolling the hole simultaneously.The utility model is compared with traditional sizing roll device, has removed axle sleeve, and bearing 5 is directly installed on the frame 1; Bevel gear 6 and roll 4 directly are fixed on driving shaft 2 and two driven shafts 3; When not increasing appearance and size, increased the external diameter of driving shaft 2 and two driven shafts 3, improved bearing capacity, whole assembling back compact conformation; It is little to take up room, and is beneficial to the precision rolling of seamless steel pipe.
One end of described driving shaft 2 stretches out outside the frame 1 and coupling sleeve 8 is installed, and described coupling sleeve 8 is provided with external splines 9, and described external splines 9 is circular arc along its length.Be provided with an internal spline floating bushing between coupling sleeve 8 and the power set, coupling sleeve 8 swings relatively of internal spline floating bushing can avoid the vibration of power set to be delivered on the driving shaft 2.
Two parallel with driving shaft 2 center lines on the described frame 1 end faces are symmetrical along the center of frame 1.Frame 1 is overturn in facade after 180 °, the upper surface of frame 1 down, it is constant that roll the center, hole this moment; And driving shaft 2 staggers, and it is little when being connected with power set, to take up room, and has dwindled this device spacing each other; The time interval at the continuous rolling seamless steel pipe is shorter, and the hollow billet thermal loss is little, and energy consumption is low; Rolling efficiency is high, has guaranteed the quality of production tube simultaneously effectively.
Claims (3)
1. the roll device of a hot-rolled pipe machine; Comprise frame (1), driving shaft (2), two driven shafts (3) and roll (4) composition; Driving shaft (2) and two driven shafts (3) distribution triangular in shape; The outer wall of roll (4) is provided with arc groove (7); The corresponding back of groove (7) on three rolls (4) forms rolls the hole, and it is characterized in that: three rolls (4) are separately fixed on driving shaft (2) and two driven shafts (3), between driving shaft (3) and the frame (1) and between two driven shafts (3) and the frame (1) bearing (5) are installed all; Described each bevel gear (6) is installed in respectively on driving shaft (2) and two driven shafts (3); Moment of torsion is transmitted through 1:1 between two pairs of identical bevel gears (6) and two driven shafts (3) respectively in the two ends of driving shaft (2), and driving shaft (2) rotates two driven shafts of drive (3) and rotates synchronously, and three rolls (4) are rotated in rolling the hole simultaneously.
2. the roll device of hot-rolled pipe machine according to claim 1; It is characterized in that: an end of described driving shaft (2) stretches out outside the frame (1) and coupling sleeve (8) is installed; Described coupling sleeve (8) is provided with external splines (9), and described external splines (9) is circular arc along its length.
3. the roll device of hot-rolled pipe machine according to claim 2 is characterized in that: frame (1) goes up the center symmetry of two end faces parallel with driving shaft (2) center line along frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203494359U CN202290728U (en) | 2011-09-17 | 2011-09-17 | Rolling device of hot-rolled pipe machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203494359U CN202290728U (en) | 2011-09-17 | 2011-09-17 | Rolling device of hot-rolled pipe machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202290728U true CN202290728U (en) | 2012-07-04 |
Family
ID=46359709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203494359U Expired - Fee Related CN202290728U (en) | 2011-09-17 | 2011-09-17 | Rolling device of hot-rolled pipe machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202290728U (en) |
-
2011
- 2011-09-17 CN CN2011203494359U patent/CN202290728U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |