CN203356192U

CN203356192U - Sizing roller device

Info

Publication number: CN203356192U
Application number: CN 201320464592
Authority: CN
Inventors: 李瑞静
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-31
Filing date: 2013-07-31
Publication date: 2013-12-25
Anticipated expiration: 2023-07-31

Abstract

The utility model relates to a sizing roller device. The sizing roller device mainly solves the problems that an existing sizing roller device has low bearing capacity, large structure and large occupied space. The sizing roller device is characterized in that driving bevel gears (9) are both arranged at two sides of a driving roller (5), a first driven roller (6) and a second driven roller (7) are provided with a first driven bevel gear (10) and a second driven bevel gear (11) respectively, the first driven bevel gear (10) and the second driven bevel gear (11) are meshed with the driving bevel gears (9) at two sides of the driving roller (5) respectively, and the transmission ratios between the driving roller (5) and the first driven roller (6) as well as the driving roller (5) and the second driven roller (7) are 1:1. The sizing roller device changes the torque transmission mode, two driving shafts do not bear torque, and the structure is not limited by the maximum torque of the driven bearing; and the sizing roller device has the characteristics of compact structure, high bearing capacity and small occupied space.

Description

A kind of sizing roll device

Technical field

The utility model relates to a kind of precision rolling device of seamless steel pipe, is specifically related to a kind of sizing roll device.

Background technology

Existing sizing roll device mainly is comprised of frame, driving shaft, two driven shafts and roll, fix driving shaft and two driven shafts of distribution triangular in shape on frame, the outer wall of roll is provided with arc groove, three rolls are separately fixed on driving shaft and two driven shafts and after the groove correspondence of three rolls and form and roll hole, pass through respectively two pairs of bevel gear 1:1 transmitting torques between driving shaft and two driven shafts, drive shaft turns drives two driven shafts and synchronously rotates, and three rolls are rotated to rolling in hole simultaneously.In the course of the work, because roll-force is larger, two driven shafts all bear larger moment of torsion, in order to make two driven shafts can carry the required moment of torsion of rolling seamless steel pipe, just must increase the diameter of two driven shafts, become huge with regard to the structure that makes the sizing roll device like this, take up room large, be unfavorable for the seamless steel pipe precision rolling.

The utility model content

In order to overcome, existing sizing roll device bearing capacity is low, huge structure and the large deficiency that takes up room, the utility model provides a kind of sizing roll device, this sizing roll device has changed the moment of torsion transfer mode, two driven shafts do not bear moment of torsion, structure is not subject to the restriction of driven shaft maximum torque, has compact conformation, bearing capacity is high and take up room little characteristics.

The technical solution of the utility model is: a kind of sizing roll device comprises frame, driving shaft, the first driven shaft, the second driven shaft, drive roll, the first idle roll and the second idle roll form, driving shaft, the first driven shaft and the distribution triangular in shape of the second driven shaft, drive roll, be equipped with arc groove on the outer wall of the first idle roll and the second idle roll, drive roll, form and roll hole after groove correspondence on the first idle roll and the second idle roll, drive roll, the first idle roll and the second idle roll are separately fixed at driving shaft, on the first driven shaft and the second driven shaft, drive the both sides of roll to be equipped with driving cone tooth, be respectively equipped with first on the first idle roll and the second idle roll from mantle tooth and second from the mantle tooth, first is meshed with the driving cone tooth that drives the roll both sides respectively from the mantle tooth from mantle tooth and second, drive between roll and the first idle roll and drive the gearratio between roll and the second idle roll to be 1:1.

Described driving cone tooth, first from mantle tooth and second from the mantle tooth respectively and drive rounding off between the groove the outer wall of roll, the first idle roll and the second idle roll.

The utlity model has following beneficial effect: owing to taking such scheme, when work, driving shaft is by driving roll directly to transfer torque on the first idle roll and the second idle roll, drive roll, the first idle roll and the second idle roll synchronously to rotate to rolling in hole, the first driven shaft and the second driven shaft be bearing torque not, only plays a supporting role.The utility model has changed the moment of torsion transfer mode, structure is not subject to the restriction of the first driven shaft and the second driven shaft maximum torque, two pairs of bevel gears in the background technology have been removed simultaneously, simplify the structure, easy to process, be beneficial to assembling, there is compact conformation, bearing capacity is high and take up room little characteristics.

The accompanying drawing explanation

Accompanying drawing 1 is structure cutaway view of the present utility model.

1-frame in figure, the 2-driving shaft, 3-the first driven shaft, 4-the second driven shaft, 5-drives roll, 6-the first idle roll, 7-the second idle roll, the 8-groove, 9-drives the cone tooth, and 10-first is from the mantle tooth, and 11-second is from the mantle tooth.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figure 1, a kind of sizing roll device comprises frame 1, driving shaft 2, the first driven shaft 3, the second driven shaft 4, drive roll 5, the first idle roll 6 and the second idle roll 7 form, driving shaft 2, the first driven shaft 3 and the distribution triangular in shape of the second driven shaft 4, drive roll 5, be equipped with arc groove 8 on the outer wall of the first idle roll 6 and the second idle roll 7, drive roll 5, form and roll hole after groove 8 on the first idle roll 6 and the second idle roll 7 is corresponding, drive roll 5, the first idle roll 6 and the second idle roll 7 are separately fixed at driving shaft 2, on the first driven shaft 3 and the second driven shaft 4, drive the both sides of roll 5 to be equipped with driving cone tooth 9, be respectively equipped with first from mantle tooth 10 and second from mantle tooth 11 on the first idle roll 6 and the second idle roll 7, first is meshed with the driving cone tooth 9 that drives roll 5 both sides respectively from mantle tooth 11 from mantle tooth 10 and second, drive between roll 5 and the first idle roll 6 and drive the gearratio between roll 5 and the second idle roll 7 to be 1:1.Owing to taking technique scheme, when work, driving shaft 2 is by driving roll 5 directly to transfer torque on the first idle roll 6 and the second idle roll 7, drive roll 5, the first idle roll 6 and the second idle roll 7 synchronously to rotate to rolling in hole, the first driven shaft 3 and the second driven shaft 4 be bearing torque not, only plays a supporting role.The utility model has changed the moment of torsion transfer mode, structure is not subject to the restriction of the first driven shaft 3 and the second driven shaft 4 maximum torques, two pairs of bevel gears in the background technology have been removed simultaneously, driving roll 5, the first idle roll 6 and the second idle roll 7 is the tube rolling executive item, it is again torque transfer member, simplify the structure, easy to process, be beneficial to assembling, there is compact conformation, bearing capacity is high and take up room little characteristics.

Described driving cone tooth 9, first from mantle tooth 10 and second from mantle tooth 11 respectively and drive rounding off between the groove 8 outer wall of roll 5, the first idle roll 6 and the second idle roll 7.Avoid the both sides of groove 8 the stress concentration phenomenon to occur, guarantee repeatedly to use rearward recess 8 not produce distortion, improve the service life that drives roll 5, the first idle roll 6 and the second idle roll 7.

Claims

1. a sizing roll device, comprise frame (1), driving shaft (2), the first driven shaft (3), the second driven shaft (4), drive roll (5), the first idle roll (6) and the second idle roll (7) form, driving shaft (2), the first driven shaft (3) and the second driven shaft (4) distribution triangular in shape, drive roll (5), be equipped with arc groove (8) on the outer wall of the first idle roll (6) and the second idle roll (7), drive roll (5), form and roll hole after groove (8) on the first idle roll (6) and the second idle roll (7) is corresponding, drive roll (5), the first idle roll (6) and the second idle roll (7) are separately fixed at driving shaft (2), on the first driven shaft (3) and the second driven shaft (4), it is characterized in that: drive the both sides of roll (5) to be equipped with driving cone tooth (9), be respectively equipped with first on the first idle roll (6) and the second idle roll (7) from mantle tooth (10) and second from mantle tooth (11), first is meshed with the driving cone tooth (9) that drives roll (5) both sides respectively from mantle tooth (11) from mantle tooth (10) and second, drive between roll (5) and the first idle roll (6) and drive the gearratio between roll (5) and the second idle roll (7) to be 1:1.

2. sizing roll device according to claim 1 is characterized in that: described driving cone tooth (9), first from mantle tooth (10) and second from mantle tooth (11) respectively and drive rounding off between the groove (8) the outer wall of roll (5), the first idle roll (6) and the second idle roll (7).