CN204866843U - Modular carbide collars - Google Patents

Abstract

The utility model belongs to the technical field of the roll technique and specifically relates to a modular carbide collars, including panel collars, rod collars, the threaded roll ring, key and nut, the panel collars is provided with the hole, the one end of panel collars is provided with the second major axis, and the other end is provided with first major axis, the key is installed to second major axis and first major axis, rod collars and threaded roll ring all are provided with the keyway, the rod collars passes through key fixed mounting on first major axis, the threaded roll ring is installed on the second major axis through the key, the tip of second major axis and first major axis is provided with the screw thread, the nut passes through the screw thread and installs on second major axis and first major axis, the utility model discloses can strengthen the intensity and the wearability of collars, the replacement wearing and tearing of being convenient for lead to condemned collars, improve the machining precision of collars, prolong the life of collars, once only accomplish the rolling of three kinds of steel, and labour saving and time saving improves production efficiency.

Description

A combined cemented carbide roller ring

technical field

The utility model relates to the technical field of rolls, in particular to a combined hard alloy roll ring.

Background technique

The roll is a tool for plastic deformation of 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. Now the rolls are All roller rings are of integral structure, and the wear of the roller ring is very serious during use. Once the wear limit is reached, the entire roller ring is scrapped. At the same time, if the length of the roller ring is long, the roller ring is prone to occur due to its own gravity and centrifugal force during rotation. Bending reduces the processing accuracy of the roll ring, and in the prior art, only one rolling of steel can be completed at one time. When rolling different types of steel, the roll ring needs to be replaced. The labor intensity is high, time-consuming and labor-intensive, and the production efficiency is reduced. , some roller rings use bolt fastening to combine different types of roller rings together, but the bolts with too long length have low strength and short service life, which affects the overall service life of the roller ring, and the replacement and maintenance consume manpower and material resources, which affects the increase in productivity. .

Contents of the invention

In order to overcome the shortcomings of the roll ring technology in the prior art, the utility model provides a combined hard alloy roll ring, which can enhance the strength and wear resistance of the roll ring, facilitate the replacement of the roll ring that is scrapped due to wear and tear, and improve the quality of the roll ring. The processing accuracy is high, the service life of the roller ring is extended, and the rolling of three kinds of steel materials is completed at one time, which saves time and effort and improves production efficiency.

The technical solution adopted by the utility model to solve the technical problem is that a combined cemented carbide roller collar includes a plate roller collar, a bar roller collar, a threaded roller collar, keys and nuts, and the plate roller collar is provided with inner hole, one end of the plate roller ring is provided with a second major axis, and the other end is provided with a first major axis, the second major axis and the first major axis are equipped with keys, and the rod roller ring and threaded roller ring All are provided with key grooves, the rod roller ring is fixedly installed on the first long axis through the key, the threaded roller ring is installed on the second long axis through the key, the end of the second long shaft and the first long axis The end of the shaft is provided with threads, and the nut is threadedly mounted on the second long shaft and the first long shaft.

The positions where the keys are installed on the second major axis and the first major axis are not on the same horizontal line, the positions where the keys are installed on the second major axis are at the bottom, and the positions where the keys are installed on the first major axis are at the top.

The beneficial effect of the utility model is that, a combined cemented carbide roller ring, the rod roller ring and the threaded roller ring are fixedly installed on both ends of the plate roller ring through keys, and at the same time, the two ends of the plate roller ring are fastened and fixed by nuts , can enhance the strength and wear resistance of the roll ring, facilitate the replacement of roll rings that are scrapped due to wear and tear, improve the machining accuracy of the roll ring, prolong the service life of the roll ring, and complete the rolling of three kinds of steel at one time, saving time and effort, improving Productivity.

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 the second view of the utility model.

Fig. 3 is a schematic cross-sectional view of a plate roller ring.

In the figure 1. plate roll ring, 2. bar roll ring, 3. threaded roll ring, 4. key, 5. keyway, 6. nut, 7. thread, 8. inner hole, 9. first major axis, 10 .Second major axis.

Detailed ways

With reference to the accompanying drawings, a combined cemented carbide roll ring includes a plate roll ring 1, a bar roll ring 2, a threaded roll ring 3, a key 4 and a nut 6, and the plate roll ring 1 is provided with an inner hole 8, so One end of the plate roller ring 1 is provided with a second major axis 10, and the other end is provided with a first major axis 9, and the second major axis 10 and the first major axis 9 are equipped with a key 4, and the rod roller ring 2 The threaded roller ring 3 is provided with a keyway 5, the bar roller ring 2 is fixedly installed on the first long axis 9 through the key 4, and the threaded roller ring 3 is installed on the second long axis 10 through the key 4, so The ends of the second major axis 10 and the first major axis 9 are provided with threads 7 , and the nuts 6 are installed on the second major axis 10 and the first major axis respectively through the threads 7 .

The part where the key 4 is installed on the second long axis 10 and the first long axis 9 is not on the same horizontal line, the part where the key 4 is installed on the second long axis 10 is at the bottom, and the part where the key 4 is installed on the first long axis 9 is at the top , It can not only ensure that the bar roll ring 2, the threaded roll ring 3 and the plate roll ring 1 keep synchronous rotation, but also ensure the strength of the plate roll ring 1.

Claims (2)

1. a Combined hard-alloy collars, comprise sheet material collars, bar collars, screw thread collars, key and nut, it is characterized in that, described sheet material collars is provided with endoporus, one end of described sheet material collars is provided with the second major axis, the other end is provided with the first major axis, described second major axis and the first major axis are provided with key, described bar collars and screw thread collars are provided with keyway, described bar collars is fixedly mounted on the first major axis by key, described screw thread collars is arranged on the second major axis by key, the end of described second major axis and the end of the first major axis are provided with screw thread, described nut is arranged on the second major axis and the first major axis by screw thread.

2. Combined hard-alloy collars according to claim 1, it is characterized in that, not in the same horizontal line, the position of the second major axis fitting key is in bottom, and the position of described first major axis fitting key is at top at the position of described second major axis and the first major axis fitting key.