CN204817463U - Carbide makes up roll - Google Patents

Abstract

The utility model relates to the technical field of rolls, in particular to a cemented carbide combined roll, which includes a mandrel, a bar roll ring, a plate roll ring, a threaded roll ring and nuts. Composed of optical shafts, the ends of the optical shafts at both ends of the mandrel are provided with threads, the inner hole of the plate roll ring is designed as a spline hole, and both ends of the plate roll ring are provided with bosses, and the plate roll ring is installed on the core through the spline hole. On the splined shaft of the shaft, the inner hole of the rod roller ring is a light hole, and the inner hole of the threaded roller ring is a smooth hole. The bar roller ring and the threaded roller ring are respectively installed on the optical shaft at both ends of the mandrel through the light hole, and the nuts are respectively installed on the shaft through the thread. On the optical axis at both ends of the mandrel, the utility model is easy to maintain, easy to replace the worn roller rings separately, reduces the production cost, stabilizes the connection, improves the strength of the rollers, prolongs the service life of the rollers, saves time and effort, and improves production efficiency .

Description

A cemented carbide composite roll

technical field

The utility model relates to the technical field of rolls, in particular to a cemented carbide composite roll.

Background technique

The roll is a tool for plastically deforming the steel, and is an important part that determines the efficiency of the rolling mill and the quality of the rolled material. The roll is an important part of the steel rolling equipment. The pressure generated when a pair of rolls roll is used to roll the steel. The existing The roll adopts an integral structure, and the wear of the roll is very serious during use. Once the wear limit is reached, the entire roll will be scrapped, resulting in waste of resources and increasing production costs. At present, there are some combination rolls, but there are unstable interconnections. Insufficient noise is generated in the center, structural design defects lead to accelerated wear, and cracks are prone to appear on the surface. In the prior art, a patent named "combined embedded rolls, application number 201420786005.7" is disclosed. The combined embedded rolls include rolls The inner core and the roll jacket matching the roll inner core. The roll jacket is composed of a plurality of roll sections. The inner wall of the section is evenly provided with three positioning convex lines along its length defense line. The roll section One end of the body is provided with annular protrusions distributed along its end surface and matched with the annular groove, which can replace the worn roll section separately, save production costs, improve the strength of the roll, and facilitate maintenance. Elongated, the matching wear between the positioning convex strip and the inner core of the roll is prone to relative rotation, resulting in the failure of the positioning of the roll section and shortening the life of the roll. There is a shear force between them, and long-term rotation is likely to cause the breakage of the ring bump, resulting in damage to the roll, shortening the life of the roll, and increasing production costs. The strength is reduced, the service life of the roll is shortened, and the production cost is increased. In the prior art, only one type of steel can be rolled at a time. When different types of steel need to be rolled, the roll ring needs to be replaced. The labor intensity is high, time-consuming and laborious. affect the improvement of production efficiency.

Contents of the invention

In order to overcome the shortcomings of the roll technology in the prior art, the utility model provides a cemented carbide combined roll, which is stable in connection, easy to maintain, easy to replace worn roll rings, reduces production costs, improves the strength of the roll, and prolongs the life of the roll. The service life of the roll is extended, saving time and effort, and improving production efficiency.

The technical solution adopted by the utility model to solve the technical problem is that a cemented carbide composite roll includes a mandrel, a bar roll ring, a plate roll ring, a threaded roll ring and a nut, and the mandrel is formed by a It consists of a spline shaft and optical shafts at both ends. The ends of the optical shafts at both ends of the mandrel are provided with threads. The inner hole of the plate roll ring is designed as a spline hole. platform, the plate roll ring is installed on the spline shaft of the mandrel through a spline hole, the bar roll ring is provided with a groove that matches the boss of the plate roll ring, and the threaded roll ring is provided with a The groove of the boss of the roller ring, the inner hole of the rod roller ring is a light hole, the inner hole of the threaded roller ring is a light hole, and the rod roller ring and the threaded roller ring are respectively installed on the light holes at both ends of the mandrel through the light hole. On the shaft, the rod roller ring and the plate roller ring are installed through the boss and the groove, the threaded roller ring and the plate roller ring are installed through the groove and the boss, and the nuts are respectively installed on the mandrel through the thread on the optical axis at both ends.

The mandrel is a stepped shaft with a thick middle and thin ends.

The number of bosses provided on both ends of the plate roller ring is 6 on each side.

The beneficial effect of the utility model is that, a cemented carbide combined roll, by designing the roll ring as segmented, it is easy to maintain, easy to replace the worn roll ring separately, and reduces the production cost. The cooperation of the shaft and the stable connection improve the strength of the roll and prolong the service life of the roll. By setting three different types of roll rings, the rolling of three steel materials can be completed at one time, saving time and effort, and improving production efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a partial cross-sectional view of the assembly of the utility model.

Fig. 2 is a front view of the mandrel of the present invention.

Fig. 3 is a left side view of the mandrel of the present utility model.

Fig. 4 is a front view of the plate roller ring of the present invention.

Fig. 5 is a right view of the threaded roller ring of the present invention.

Fig. 6 is a left view of the rod roller ring of the present invention.

In the figure 1. mandrel, 2. bar roll ring, 3. plate roll ring, 4. thread roll ring, 5. nut, 6. screw thread, 7. spline shaft, 8. boss, 9. light hole, 10. Spline hole, 11. Optical axis, 12. Groove.

Detailed ways

Referring to the accompanying drawings, a cemented carbide composite roll includes a mandrel 1, a bar roll ring 2, a plate roll ring 3, a threaded roll ring 4 and a nut 5, and the mandrel 1 is formed by a spline shaft 7 located in the middle and the optical axis 11 at both ends, the ends of the optical axis 11 at the two ends of the mandrel 1 are provided with threads 6, the inner hole of the plate roll ring 3 is designed as a spline hole 10, the two ends of the plate roll ring 3 Both are provided with a boss 8, and the plate roll ring 3 is installed on the spline shaft 7 of the mandrel 1 through a spline hole 10, and the bar roll ring 2 is provided with a concave hole that matches the boss of the plate roll ring 3. Groove 12, the threaded roller ring 4 is provided with a groove 12 that cooperates with the boss 8 of the plate roller ring 3, the inner hole of the rod roller ring 2 is a light hole 9, and the inner hole of the threaded roller ring 4 is a light hole 9, so The rod roller ring 2 and the threaded roller ring 4 are respectively installed on the optical axis 11 at both ends of the mandrel 1 through the light hole 9, and the rod roller ring 2 and the plate roller ring 3 are installed through the boss 8 and the groove 12. , the threaded roller ring 4 and the plate roller ring 3 are installed through the groove 12 and the boss 8, and the nuts 5 are respectively installed on the optical axis 11 at both ends of the mandrel 1 through the thread 6.

The mandrel 1 is a stepped shaft with a thick middle and thin ends.

The number of bosses 8 provided on both ends of the plate roll ring 3 is six on each side.

Claims (3)

1. A cemented carbide composite roll, comprising a mandrel, a bar roll ring, a sheet metal roll ring, a threaded roll ring and a nut, characterized in that the mandrel consists of a spline shaft at the middle position and optical axes at both ends Composition, the ends of the optical axis at both ends of the mandrel are provided with threads, the inner hole of the plate roll ring is designed as a spline hole, both ends of the plate roll ring are provided with bosses, and the plate roll ring passes through The spline hole is installed on the spline shaft of the mandrel, the bar roll ring is provided with a groove that matches the boss of the plate roll ring, and the threaded roll ring is provided with a groove that matches the boss of the plate roll ring. Groove, the inner hole of the rod roller ring is a light hole, the inner hole of the threaded roller ring is a light hole, the rod roller ring and the threaded roller ring are respectively installed on the optical axis at both ends of the mandrel through the light hole, and the rod roller The ring and the plate roll ring are installed through the cooperation of the boss and the groove, the threaded roll ring and the plate roll ring are installed through the groove and the boss, and the nuts are respectively installed on the optical axis at both ends of the mandrel through threads. 2. The cemented carbide composite roll according to claim 1, characterized in that the mandrel is a stepped shaft with a thick middle and thin ends. 3. The cemented carbide combined roll according to claim 1, characterized in that, the number of bosses provided on both ends of the plate roll ring is 6 on each side.