CN202238159U

CN202238159U - Hard alloy stud roll surface

Info

Publication number: CN202238159U
Application number: CN201120334319XU
Authority: CN
Inventors: 何亚民; 魏勇; 徐智平
Original assignee: Chengdu Leejun Industrial Co Ltd
Current assignee: Chengdu Leejun Industrial Co Ltd
Priority date: 2011-09-07
Filing date: 2011-09-07
Publication date: 2012-05-30
Anticipated expiration: 2021-09-07

Abstract

The utility model discloses a hard alloy stud roll surface which comprises a roll surface and a large stud, wherein the large stud is arranged on the roll surface, small studs are further arranged on the roll surface, the small studs are arranged around the large stud, the exposure height of each small stud is lower than that of the large stud, the roll surface is made of high-strength steel, and the large stud and the small studs are made of hard alloy. The hard alloy stud roll surface disclosed by the utility model can be used for reducing the net clearance among the studs, is conductive to enabling materials to generate a solider authigenic material cushion and the protection of a roll substrate, and can be used for prolonging the service life of the roll surface, effectively improving the running rate of equipment and reducing the manufacturing cost of the roll surface.

Description

Hard alloy columnar nail roll surface

Technical field

The utility model relates to a kind of post nail roll surface, relates in particular to the hard alloy columnar nail roll surface in a kind of roll squeezer that is used for industry roll-in milling equipments such as building material cement, metallurgical mine, coal, chemical industry.

Background technology

Roll squeezer is claimed high-pressure roller mill again, and two compression rollers that rotate in opposite directions of roll-in mill produce huge extruding force material is pulverized under the hydraulic system effect, and the roll surface life relations of compression roller is to operation rate and maintenance cost.When roll squeezer roller tribulation grind materials, like slag, iron ore, quartz mine etc., its roll surface adopts the method for tungsten carbide button's post nail to guarantee the wearability of roll surface usually.The post nail is as shown in Figure 1 in roll surface tungsten carbide button, and the mode of employing is to gather on roll surface 1 with a kind of post nail 2 dislocation of diameter.For the big slightly material of roll-in granularity, post nail diameter all more than 16mm, makes that the gap between the post nail is bigger, though also can form backing strap, the backing strap that forms like this is very limited to the protection of matrix.The industry of equipment is both at home and abroad used and shown: the wearing and tearing of matrix are fast far beyond the hard alloy columnar nail, thereby the life-span of having limited whole roll surface increases; And because this large diameter post nail gathers at whole roll surface, the cost of post nail is higher, thereby makes that the cost of roll surface is also very high.

The utility model content

The purpose of the utility model is: a kind of headroom between the post nail that effectively reduces is provided, is beneficial to the hard alloy columnar nail roll surface that material generates more solid spontaneous backing strap and the protection of roller matrix, thereby can effectively solves the problem that exists in the above-mentioned prior art.

The purpose of the utility model is to realize through following technical proposals: a kind of hard alloy columnar nail roll surface; Comprise roll surface and huge pillar nail; Said huge pillar nail is located on the roll surface; On roll surface, also be provided with the pillar nail, said pillar nail is provided with around the huge pillar nail, and appearing of pillar nail highly is lower than the height of appearing of huge pillar nail.

As a kind of optimal way, wherein: the diameter of said pillar nail is followed closely less than huge pillar.

As optimal way further, the diameter of said pillar nail is 3-16mm.

As optimal way further, appearing of said pillar nail highly is lower than the height 1～10mm that appears of huge pillar nail.

As optimal way further, the arrangement that said huge pillar nail adopts dislocation to arrange on roll surface.

Said roll surface is processed by high strength steel, and said huge pillar nail, pillar nail are processed by carbide alloy.

Compared with prior art; The beneficial effect of the utility model: the utility model hard alloy columnar nail roll surface; Headroom between its post nail has reduced, and helps material and generates the more solid spontaneous backing strap and the protection of roller matrix, the service life of having improved roll surface; Effectively improve operation rate, reduced the manufacturing cost of roll surface.

Description of drawings

Fig. 1 is the structural representation of hard alloy columnar nail roll surface in the prior art;

Fig. 2 is the structural representation of the utility model hard alloy columnar nail roll surface;

Fig. 3 is the side structure sketch map of the utility model hard alloy columnar nail roll surface.

Among the figure, 1-roll surface, 2-huge pillar nail, 3-pillar nail.

The specific embodiment

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

Disclosed all characteristics in this specification, or the step in disclosed all methods or the process are except the speciality of mutual repulsion and/or the step; All can make up by any way; Only if special narration all can be replaced by other equivalences or the alternative features with similar purpose, promptly; Only if special narration, an embodiment in a series of equivalences of each characteristic or the similar characteristics.

Like Fig. 2, shown in Figure 3; The utility model hard alloy columnar nail roll surface comprises roll surface 1 and huge pillar nail 2; Said huge pillar nail 2 is located on the roll surface 1, on roll surface 1, also is provided with pillar nail 3, and said pillar nail 3 is provided with around huge pillar nail 2; And appearing of pillar nail 3 highly is lower than the height of appearing of huge pillar nail 2, and the diameter of said pillar nail 3 is less than huge pillar nail 2.

In the present embodiment, the diameter of said pillar nail 3 is 3-16mm, chooses according to the diameter of the huge pillar nail 2 that is provided with on it, and the diameter of general huge pillar nail 2 is chosen as 10-30mm.

Appearing of said pillar nail 3 highly is lower than the height 1～10mm that appears of huge pillar nail 2.

The arrangement that said huge pillar nail 2 adopts dislocation to arrange on roll surface 1; Mainly comprise the arrangement that the dislocation straight burr is arranged and the dislocation ring grain is arranged, help the generation of spontaneous backing strap, storeroom is pulverized each other; And then avoid material contact roll surface, make improve greatly the service life of roll surface.

Said huge pillar nail 2 is all selected than the much higher material of roll surface 1 wearability with pillar nail 3, is convenient to the better of post nail, and said roll surface is processed by high strength steel, and said huge pillar nail, pillar nail are processed by carbide alloy.Adopt the cobalt-based Talide to process in the present embodiment.

In addition, said pillar nail can adopt vacuum-sintering or pressure sintering or HIP sintering to process, and pillar nail and roll surface can adopt the mode of inlaying cooperation to be provided with, and can effectively avoid the post nail to damage.

The principle of the making flow process of present embodiment and realization function thereof is: the huge pillar that the evenly densely covered diameter of dislocation is 20mm on roll surface is earlier followed closely; Be the pillar nail of 8mm on every side around a loop diameter at each huge pillar nail again, appearing of pillar nail highly is lower than the height 5mm that appears of huge pillar nail.Such set-up mode makes the headroom between the post nail reduce; Help material and generate more solid spontaneous backing strap; Also be more conducive to the protection of pair of rollers matrix, improved 30% the service life of roll surface, effectively improves operation rate; The manufacturing cost of roll surface has reduced by 8%, makes roll surface have more competitiveness.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. a hard alloy columnar nail roll surface comprises roll surface and huge pillar nail, and said huge pillar nail is located on the roll surface, it is characterized in that: on roll surface, also be provided with the pillar nail, said pillar nail is provided with around the huge pillar nail, and appearing of pillar nail highly is lower than the height of appearing of huge pillar nail.

2. hard alloy columnar nail roll surface as claimed in claim 1, it is characterized in that: the diameter of said pillar nail is followed closely less than huge pillar.

3. hard alloy columnar nail roll surface as claimed in claim 2, it is characterized in that: the diameter of said pillar nail is 3-16mm.

4. hard alloy columnar nail roll surface as claimed in claim 3 is characterized in that: appearing of said pillar nail highly is lower than the height 1～10mm that appears of huge pillar nail.

5. hard alloy columnar nail roll surface as claimed in claim 4 is characterized in that: the arrangement that said huge pillar nail adopts dislocation to arrange on roll surface.