CN202609658U

CN202609658U - Pinch roll

Info

Publication number: CN202609658U
Application number: CN 201220286358
Authority: CN
Inventors: 钱文明
Original assignee: Wuxi Baishun Machinery Factory
Current assignee: Wuxi Baishun Machinery Factory
Priority date: 2012-06-19
Filing date: 2012-06-19
Publication date: 2012-12-19
Anticipated expiration: 2022-06-19

Abstract

The utility model discloses a pinch roll which comprises a roll body in a cylinder shape and a roll shaft extending along two ends of lengthwise direction of the roll body, wherein the roll body is treated through a method of quenching and tempering, and the Rockwell hardness range of the surface of the roll body is HRC 60-62. By means of the quenching and tempering treatment of the roll body, the Rockwell hardness of the roll body surface of the pinch roll reaches to HRC 60-62, so that the pinch roll can meet needs of various production occasions, and compared with the method of adding alloy to increase hardness of the roll body, cost is low.

Description

Pinch roll

Technical field

The utility model belongs to field of mechanical technique, is specifically related to a kind of pinch roll.

Background technology

On the strip machining production line of metallurgy, weaving, printing and dyeing and papermaking etc., according to the processing technology needs, when turning to, strip needs various large-scale pinch rolls, sometimes the diameter of pinch roll even need reach more than 100 millimeters.

Pinch roll is owing to bearing bigger application force, so have higher requirement for material usually.But in the prior art, in order to reach the purpose that improves pinch roll hardness, normally add multiple alloy, this can strengthen the cost of manufacture of pinch roll undoubtedly.

The utility model content

The purpose of the utility model is the pinch roll that provides hardness higher.

For realizing above-mentioned utility model purpose, a kind of pinch roll that the utility model provides, this pinch roll comprises:

Roll body, said roll body is cylindrical shape;

Roll shaft, said roll shaft extends along the two ends of said roll body longitudinally;

Wherein, said roll body is through modifier treatment, and the HRc scope on said roll body surface is HRC60 ~ 62.

As the further improvement of the utility model, handle through electro-high-frequency hardening on said roll body surface.

As the further improvement of the utility model, said roll shaft comprises first roll shaft that is arranged at said roll body one end and second roll shaft that is arranged at the said roll body other end, and the length of said second roll shaft is greater than the length of said first roll shaft.

As the further improvement of the utility model, said first roll shaft comprises that the length of said first is 45 millimeters from the first of said roll body one end extension and the second portion that extends from said first, and the length of said second portion is 50 millimeters.

As the further improvement of the utility model, the diameter of said first is greater than the diameter of said second portion.

As the further improvement of the utility model, said second roll shaft comprises from the third part of said roll body other end extension, from the 4th part of said third part extension and the 5th part of extending from said the 4th part.

As the further improvement of the utility model, the diameter of said third part is greater than said tetrameric diameter, and said tetrameric diameter is greater than the diameter of said the 5th part.

As the further improvement of the utility model, the length of said third part is 45 millimeters, and said tetrameric length is 90 millimeters, and the length of said the 5th part is 85 millimeters.

As the further improvement of the utility model, said the 5th part is provided with slug hole.

As the further improvement of the utility model, said roll body is 850 millimeters along the length of longitudinally.

Compared with prior art, the utility model make the HRc scope on roll body surface reach HRC60 ~ 62, and cost is lower through carrying out modifier treatment at the roll body to pinch roll.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing of the relevant the utility model in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of the utility model pinch roll one embodiment.

The specific embodiment

Below will combine the specific embodiment shown in the drawings that the utility model is described in detail.But these embodiments do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these embodiments, method or the function all is included in the protection domain of the utility model.

Referring to Fig. 1, introduce a specific embodiment of the utility model pinch roll 10.This pinch roll 10 comprises roll body 11 and roll shaft.

Roll body 11 roughly is cylindrical shape, and roll shaft extends along the two ends of roll body 11 longitudinallies, is used for being connected with external mechanical part.

In this embodiment, roll body 11 is through modifier treatment, and the HRc scope on roll body 11 surfaces is HRC60 ~ 62.So-called modifier treatment is promptly quenched and the comprehensive Technology for Heating Processing of high temperature tempering, and it can make roll body 11 intensity, plasticity and toughness all be highly improved so that the performance of the material of roll body 11 is adjusted significantly, and, do not increase extra cost.

As preferred embodiment, handle through electro-high-frequency hardening on roll body 11 surfaces, and it can further improve the surface quality of roll body 11, promotes the durability of pinch roll 10.

Roll shaft comprises first roll shaft 12 that is arranged at roll body 11 1 ends and second roll shaft 13 that is arranged at roll body 11 other ends, and wherein, the length of second roll shaft 13 is greater than the length of first roll shaft 12.

Distinguishingly; First roll shaft 12 comprises from first 121 that said roll body 11 1 ends extend and the second portion 122 that extends from said first 121; The length of said first 121 is 45 millimeters; The length of said second portion 122 is 50 millimeters, and the diameter of first 121 is greater than the diameter of second portion 122.

Similarly; Second roll shaft 13 comprises that the length of said third part 131 is 45 millimeters from the third part 131 of roll body 11 other ends extension, from the 4th part 132 of third part 131 extensions and the 5th part 133 of extending from the 4th part 132, and the length of the 4th part 132 is 90 millimeters; The length of the 5th part 133 is 85 millimeters; And the diameter of third part 131 is greater than the diameter of the 4th part 132, and the diameter of the 4th part 132 is greater than the diameter of said the 5th part 133.

This is because roll shaft normally is used for being connected with external mechanics, so need a less dimensional characteristic.But if fruit directly is set to less diameter with roll shaft, then can cause between roll shaft and the roll body 11 bonded assembly unreliable easily, influence production.Through the roll shaft of this diameter that successively decreases one by one is set, can guarantee the Joint strenght of roll shaft and roll body 11 effectively.

As preferred embodiment, the 5th part 133 is provided with slug hole 14, and this slug hole 14 can reduce the weight of pinch roll 10 effectively, and helps the control of enterprise production cost.

Distinguishingly, in above-mentioned embodiment, roll body 11 is 850 millimeters along the length of longitudinally.

The utility model is through above-mentioned embodiment; Have following beneficial effect: the roll body 11 through to pinch roll 10 carries out modifier treatment; Make pinch roll 10 roll bodies 11 surface rockwell hardnesses reach HRC60 ~ 62; Can satisfy the needs of multiple production occasion, and increase the method for roll body 11 hardness with respect to adding alloy, cost is lower.

Be to be understood that; Though this specification sheets is described according to embodiment; But be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets only is for clarity sake, and those skilled in the art should make specification sheets as a whole; Technical scheme in each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.

The listed a series of detailed description of preceding text only is specifying to the feasibility embodiment of the utility model; They are not the protection domain in order to restriction the utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the utility model.

Claims

1. a pinch roll is characterized in that, this pinch roll comprises:

Roll body, said roll body is cylindrical shape;

2. pinch roll according to claim 1 is characterized in that, handle through electro-high-frequency hardening on said roll body surface.

3. pinch roll according to claim 1 is characterized in that, said roll shaft comprises first roll shaft that is arranged at said roll body one end and second roll shaft that is arranged at the said roll body other end, and the length of said second roll shaft is greater than the length of said first roll shaft.

4. pinch roll according to claim 3; It is characterized in that; Said first roll shaft comprises that the length of said first is 45 millimeters from the first of said roll body one end extension and the second portion that extends from said first, and the length of said second portion is 50 millimeters.

5. pinch roll according to claim 4 is characterized in that the diameter of said first is greater than the diameter of said second portion.

6. pinch roll according to claim 3 is characterized in that, said second roll shaft comprises from the third part of said roll body other end extension, from the 4th part of said third part extension and the 5th part of extending from said the 4th part.

7. pinch roll according to claim 6 is characterized in that, the diameter of said third part is greater than said tetrameric diameter, and said tetrameric diameter is greater than the diameter of said the 5th part.

8. pinch roll according to claim 6 is characterized in that, the length of said third part is 45 millimeters, and said tetrameric length is 90 millimeters, and the length of said the 5th part is 85 millimeters.

9. pinch roll according to claim 6 is characterized in that, said the 5th part is provided with slug hole.

10. pinch roll according to claim 1 is characterized in that, said roll body is 850 millimeters along the length of longitudinally.