CN206028334U - Pipe mill godet - Google Patents

Abstract

The utility model discloses a pipe mill godet, including the godet body, open the side end face of godet body has the oval groove cambered surface, the oval groove cambered surface includes the first trough cambered surface, second groove cambered surface, the first trough cambered surface with second groove cambered surface transitional coupling together, the minimum of the first trough cambered surface with side end face one side edge of godet body is formed with first godet groove depth, the minimum of second groove cambered surface with the side end face opposite side edge of godet body is formed with second godet groove depth. The utility model discloses pipe mill godet changes godet mission profile through improving the technology, makes the groove cambered surface great with the coefficient of joviality that the godet groove depth compares formation, and similar of the deformation of godet pass promptly subtracts quick -witted oval pass series and is out of shape the principle, and the difficult pass that forms is crossed and is full of, stops the metal round pin to flow to the oval groove cambered surface in, prevents that the first trough cambered surface edge from gluing the steel and collapsing the limit, makes the life extension of godet body, also improves production efficiency and body quality.

Description

A kind of pipe mill godet

Technical field

This utility model is related to a kind of pipe mill godet.

Background technology

Hollow billet work in-process will be clamped by roll and godet, so hollow billet is fixed on the ellipse that roll and godet are formed In vestibule, now roll spacing is exactly short axle, and godet is away from being exactly major axis, while short axle is that fixed (diameter of mandrel is fixed, waste thickness of pipe wall Fixed, spring is fixed), in the case where the same relative position of godet is constant, major axis is shorter, less (or the roller of ellipse coefficient In the case of certain, in the case of the fixation, the short axle of local is longer for godet, causes the ellipse coefficient of local less), that The deformation of this pass is similar to stretch reducing machine circular hole series of transformations principle, and Long axis compression lacks, and what short axle was supplemented lack, so Over-filling for pass is relatively easy to form, on the flash that this metallic pin produced in the hollow billet course of processing readily flows into godet Go, the steel bonding and chipping of godet flash can be formed, after steel bonding, need substantial amounts of artificial reconditioning, cause production efficiency low, while The sordid flash steel bonding of reconditioning can cause tube surfaces to form the scuffing of the strip impression or uniform pitch of regularity, body Quality is greatly affected；Chipping can cause the service life of godet to reduce the increase with allowance so that the yield of production Cannot effectively improve.

Utility model content

This utility model is directed to the deficiencies in the prior art, there is provided a kind of to prevent metallic pin from flowing to godet flash up, Prevent the pipe mill godet of the steel bonding of godet flash and chipping.

In order to solve above-mentioned technical problem, this utility model is addressed by following technical proposals：

A kind of pipe mill godet, including godet body, the godet body is rotary structure, and the godet is originally opened in vivo The side for having the first connecting hole, first connecting hole is provided with the second connecting hole, and the side end face of the godet body is provided with ellipse Shape groove cambered surface, the elliptical slot cambered surface include the first groove cambered surface, the second groove cambered surface, the first groove cambered surface and second groove Cambered surface transition links together, and the minimum point of the first groove cambered surface is formed with one lateral edges of side end face of the godet body First godet groove depth, the minimum point of the second groove cambered surface are formed with second with another lateral edges in side end face of the godet body Godet groove depth.

Used as further improvement of the utility model, the radius of the first groove cambered surface is 75.71mm, first godet The depth of groove depth is 36.05mm, and the radius of the second groove cambered surface is 104.44mm, and the depth of the second godet groove depth is 13.7mm。

As further improvement of the utility model, a shoulder hole on the outer surface of second connecting hole, is provided with, it is described It is provided with a screwed hole between two adjacent shoulder holes, the screwed hole is to be symmetric along the axis of rotation of godet body Two, between described two other adjacent shoulder hole, it is provided with a keyway, the keyway is to be in along the axis of rotation of godet body Symmetrical two.

As further improvement of the utility model, the shoulder hole be 12 and equidistantly annular spread described second On the outer surface inside edge of connecting hole, the shoulder hole through second connecting hole inwall and with first connecting hole Connect as one, the keyway is 15 ° with the angle of an adjacent shoulder hole, the angle in the screwed hole and another adjacent steps hole For 15 °.

As further improvement of the utility model, one is formed with the outer surface outer ledge of second connecting hole flat Face.

Beneficial effect：Compared with prior art, which has the advantages that this utility model：

This utility model pipe mill godet changes godet technical parameter, makes groove cambered surface and godet by modified technique technology Groove depth is more larger than the ellipse coefficient for being formed, i.e. the similar stretch reducing machine oval groove series of transformations principle of deformation of godet pass, no Easily form pass to over-fill, prevent metallic pin stream in elliptical slot cambered surface, prevent the first groove cambered surface edge steel bonding and chipping, make The service life of godet body extends, also improve production efficiency and body quality.

Description of the drawings

Fig. 1 is pipe mill godet front view.

Fig. 2 is the right pseudosection of pipe mill godet.

Fig. 3 is elliptical slot globoidal structure enlarged drawing.

Specific embodiment

Refering to Fig. 1 to 3, a kind of pipe mill godet, including godet body 1, godet body 1 is rotary structure, described to lead The first connecting hole 11 is provided with disk body 1, the side of the first connecting hole 11 is provided with the second connecting hole 12, the side of godet body 1 Face is provided with elliptical slot cambered surface 2, and elliptical slot cambered surface 2 includes the first groove cambered surface 21, the second groove cambered surface 22, the first groove cambered surface 21 with Second groove cambered surface, 22 transition links together, the minimum point of the first groove cambered surface 21 and the one lateral edges shape of side end face of godet body 1 Into there is the first godet groove depth 23, the minimum point of the second groove cambered surface 22 and another lateral edges in side end face of godet body 1 are formed with the Two godet groove depths 24, further, the radius of the first groove cambered surface 21 is 75.71mm, and the depth of the first godet groove depth 23 is 36.05mm, the radius of the second groove cambered surface 22 is 104.44mm, and the depth of the second godet groove depth 24 is 13.7mm, and hollow billet is by roll After clamping with godet body 1, roll and godet body 1 form oval vestibule, and now roll spacing is that fixed (diameter of mandrel is solid Fixed, waste thickness of pipe wall is fixed, fixation of bouncing), but in the case that 1 same relative position of godet body is constant, 21 He of the first groove cambered surface The ellipse coefficient formed by the ratio of the ratio of the first godet groove depth 23 and the second groove cambered surface 22 and the second godet groove depth 24 compared with Greatly (i.e. godet is away from longer), the deformation of 1 pass of godet body is similar to stretch reducing machine oval groove series of transformations principle, godet away from Compression it is many, roll spacing supplement it is many, be difficult to form pass and over-fill, that is, prevent metallic pin to flow in elliptical slot cambered surface 2, So as to prevent the 21 edge steel bonding of the first groove cambered surface and chipping, extend the service life of godet body 1, while also improving production effect Rate and body quality.

In the present embodiment preferably, the radius of the first groove cambered surface 21 can also for 86.53mm, 91.93mm, 102.75mm, 113.57mm, the depth of the first godet groove depth 23 are corresponding for 41.2mm, 43.78mm, 48.93mm, 54.08mm, the second groove arc The radius in face 22 is corresponding for 119.36mm, 126.86mm, 141.74mm, 156.66mm, the depth pair of the second godet groove depth 24 Answer for 15.66mm, 16.63mm, 18.59mm, 20.55mm.

Further, a shoulder hole 3 is provided with the outer surface of the second connecting hole 12, specifically, shoulder hole 3 is 12 and between waiting Away from annular spread on the outer surface inside edge of the second connecting hole 12, shoulder hole 3 through the second connecting hole 12 inwall and with First connecting hole 11 is connected as one, and is provided with a screwed hole 4 between two adjacent shoulder holes 3, and screwed hole 4 is along godet body Be symmetric two of 1 axis of rotation, are provided with a keyway 5 between two other adjacent shoulder hole 3, keyway 5 is along leading Be symmetric two of the axis of rotation of disk body 1, keyway 5 is 15 ° with the angle of an adjacent shoulder hole 3, screwed hole 4 with it is another The angle in one adjacent steps hole 3 is 15 °, is formed with a plane 6, shoulder hole 3 on the outer surface outer ledge of the second connecting hole 12 Tolerance grade be must assure that with the Working position of keyway 5 so as to can exchange with godet spoke (not shown) and use cooperatively, plane 6 Upper available paint sign numerical value, shows 1 integral thickness of godet body, and screwed hole 4 is fixed with tube rolling machine part by screw, makes to lead Disk body 1 forms firm entirety with pipe mill.

In sum, this utility model pipe mill godet changes godet technical parameter, makes groove arc by modified technique technology Face is more larger than the ellipse coefficient for being formed with godet groove depth, i.e. the similar stretch reducing machine oval groove series of transformations of deformation of godet pass Principle, is difficult to form pass and over-fills, and prevents metallic pin stream to elliptical slot cambered surface in, prevent the first groove cambered surface edge steel bonding with Chipping, extends the service life of godet body, also improve production efficiency and body quality.

Embodiment described above is only that preferred implementation of the present utility model is described, not to this practicality New spirit and scope are defined.On the premise of without departing from this utility model design concept, this area ordinary person couple Various modifications and improvement that the technical solution of the utility model is made, all should drop into protection domain of the present utility model, this reality With the new technology contents being claimed, all record in detail in the claims.

Claims (5)

1. a kind of pipe mill godet, including godet body (1), described godet body (1) is rotary structure, the godet body (1) the first connecting hole (11) is provided with, the side of the first connecting hole (11) is provided with the second connecting hole (12), and its feature exists In the side end face of godet body (1) is provided with elliptical slot cambered surface (2), and described elliptical slot cambered surface (2) include the first groove arc Face (21), the second groove cambered surface (22), the first groove cambered surface (21) are linked together with the second groove cambered surface (22) transition, institute One lateral edges of side end face of the minimum point and godet body (1) of stating the first groove cambered surface (21) are formed with the first godet groove depth (23), the minimum point of the second groove cambered surface (22) is formed with second with another lateral edges in side end face of godet body (1) Godet groove depth (24).

2. pipe mill godet according to claim 1, it is characterised in that the radius of the first groove cambered surface (21) is 75.71mm, the depth of the first godet groove depth (23) is 36.05mm, and the radius of the second groove cambered surface (22) is 104.44mm, the depth of the second godet groove depth (24) is 13.7mm.

3. pipe mill godet according to claim 1, it is characterised in that open on the outer surface of the second connecting hole (12) There is a shoulder hole (3), between described two adjacent shoulder holes (3), be provided with a screwed hole (4), screwed hole (4) are that edge is led Be symmetric two of the axis of rotation of disk body (1), are provided with a keyway between described two other adjacent shoulder hole (3) (5), keyway (5) are be symmetric two of axis of rotation along godet body (1).

4. pipe mill godet according to claim 3, it is characterised in that described shoulder hole (3) are 12 and equidistant ring Shape is distributed on the outer surface inside edge of the second connecting hole (12), and described shoulder hole (3) run through second connecting hole (12) inwall and connect as one with the first connecting hole (11), the angle of keyway (5) and adjacent a shoulder hole (3) For 15 °, screwed hole (4) are 15 ° with the angle of another adjacent steps hole (3).

5. pipe mill godet according to claim 1, it is characterised in that on the outside of the outer surface of the second connecting hole (12) A plane (6) is formed with edge.