CN202715727U - Rolling barrel lead-changing spiral vane forming mould for coal mining machine - Google Patents
Rolling barrel lead-changing spiral vane forming mould for coal mining machine Download PDFInfo
- Publication number
- CN202715727U CN202715727U CN 201220418880 CN201220418880U CN202715727U CN 202715727 U CN202715727 U CN 202715727U CN 201220418880 CN201220418880 CN 201220418880 CN 201220418880 U CN201220418880 U CN 201220418880U CN 202715727 U CN202715727 U CN 202715727U
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- stud
- placenta
- spiral lines
- vortex
- upright rib
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Abstract
The utility model provides a rolling barrel lead-changing spiral vane forming mould for a coal mining machine, and relates to a vane forming mould. The mould aims at solving the problems that rolling barrel vanes manufactured by a mould in the prior art is small in gap and has no inclined angles, coal is prone to accumulating between the vanes, the coal is inconvenient to throw, coal loading effect is not good, and cutting resistance is increased. Distances between points on inner spiral lines and outer spiral lines of the first upright rib to the seventh upright rib on a lower mould base and the upper end face of the lower mould base are sequentially increased. Springback amount of the points on inner spiral lines and the outer spiral lines of the first upright rib to the seventh upright rib on the lower mould base is sequentially decreased. The distances between the points on inner spiral lines and outer spiral lines of the first upright rib to the seventh upright rib on an upper mould base and the upper end face of the upper mould base are sequentially decreased. The springback amount of the points on inner spiral lines and the outer spiral lines of the first upright rib to the seventh upright rib on the upper mould base is sequentially increased. The module is used for manufacturing the rolling barrel vanes of the coal mining machine.
Description
Technical field
The present invention relates to a kind of blade forming mold.
Background technology
At present, the low seam mining machinery cylinder of colliery down-hole application is owing to be subjected to spatial constraints, diameter of cylinder is little, blade is narrow, effect of loading coal is generally bad, and as shown in Figure 1, the inside and outside helical pitch of traditional cylindrical screw blade is identical, namely equate that to standoff height blade does not have degree of tilt at identical cornerite intra vane internal diameter and outside journal axle.Tradition molding fetal design principle is after determining mold projection cornerite, with projection cornerite seven five equilibriums.Point (exterior point) at grade (namely the interior point of an end highly equals other end exterior point height) in the stud exterior point of mold (interior point) and the stud goes out each point stud height, width and position dimension by this plane computations up and down.Stud 1 reduces successively to stud 7 interior points, and exterior point raises successively.Interior exterior point springback capacity is provided to two ends by middle stud, and an end increases successively, and the other end reduces successively.The drum blade gap of making by above-mentioned blade and matrix design principle is little, does not have the angle of inclination, and coal is deposited between the blade easily, is not easy to coal and dishes out, and effect of loading coal is bad, increases cutting resistance.
Summary of the invention
The purpose of this invention is to provide a kind of coal mining machine roller Variable lead blade forming mold, little to solve the drum blade gap that present mold produces, there is not the angle of inclination, coal is deposited between the blade easily, be not easy to coal and dish out, effect of loading coal is bad, increases the problem of cutting resistance.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: mold comprises placenta and lower placenta, described mold also comprises two groups of studs, respectively be provided with one group of stud on upper placenta and the lower placenta, every group of stud comprises the first stud from left to right successively, the second stud, the 3rd stud, the 4th stud, the 5th stud, the 6th stud and the 7th stud, point on the inner vortex of the first stud to the seven studs on the lower placenta and the point on the outer vortex all increase successively to the distance of the upper surface of lower placenta, putting springback capacity on the inner vortex of the first stud to the seven studs on the lower placenta on some springback capacity and the outer vortex all reduces successively, point on the inner vortex of the first stud to the seven studs on the upper placenta and the point on the outer vortex all reduce successively to the distance of the upper surface of upper placenta, all successively increases of some springback capacity on some springback capacity and the outer vortex on the inner vortex of the first stud to the seven studs on the upper placenta.
The present invention has following beneficial effect: use the blade dimensions of this mold moulding accurate, with the angle of inclination, the blade gap increases at same diameter of cylinder situation bottom roll blade, make coal not be deposited between the blade, be convenient to coal and dish out, reduce cutting resistance, effect of loading coal is better.
Description of drawings
Fig. 1 is traditional cylindrical screw blade part and molding fetal schematic diagram, and Fig. 2 is that the Variable lead blade is pressed the tire structural representation.
The specific embodiment
The specific embodiment one: the mold of present embodiment comprises placenta 9 and lower placenta 8, described mold also comprises two groups of studs, respectively be provided with one group of stud on upper placenta 9 and the lower placenta 8, every group of stud comprises the first stud 1 from left to right successively, the second stud 2, the 3rd stud 3, the 4th stud 4, the 5th stud 5, the 6th stud 6 and the 7th stud 7, point on the inner vortex of the first stud 1 to the 7th stud 7 on the lower placenta 8 and the point on the outer vortex all increase successively to the distance of the upper surface of lower placenta 8, putting springback capacity on the inner vortex of the first stud 1 to the 7th stud 7 on the lower placenta 8 on some springback capacity and the outer vortex all reduces successively, point on the inner vortex of the first stud 1 to the 7th stud 7 on the upper placenta 9 and the point on the outer vortex all reduce successively to the distance of the upper surface of upper placenta 9, all successively increases of some springback capacity on some springback capacity and the outer vortex on the inner vortex of the first stud 1 to the 7th stud 7 on the upper placenta 9.
The specific embodiment two: the projection cornerite of present embodiment is 108 degree, and the inner vortex helical pitch is 240mm, outer vortex helical pitch 275mm, projection internal diameter φ 320mm, projection external diameter φ 720mm, upper placenta 9 and lower placenta 8 shut height 400mm, the above-mentioned most preferably scheme that is of a size of.Other embodiment is identical with the specific embodiment one.
Operation principle: respectively weld seven studs by the left and right direction of revolving on upper placenta and lower placenta, upper placenta and lower placenta put together on the hydraulic press platform, and the mounted blade material is placed between placenta and the lower placenta, utilizes hydraulic press to extrude simultaneously left and right helical blade.Two sections are opposite at the mold placement direction during blade swaging.
Claims (2)
1. coal mining machine roller Variable lead blade forming mold, described mold comprises placenta (9) and lower placenta (8), it is characterized in that described mold also comprises two groups of studs, respectively be provided with one group of stud on upper placenta (9) and the lower placenta (8), every group of stud comprises the first stud (1) from left to right successively, the second stud (2), the 3rd stud (3), the 4th stud (4), the 5th stud (5), the 6th stud (6) and the 7th stud (7), point and some outer vortex on of the first stud (1) on the lower placenta (8) to the inner vortex of the 7th stud (7) all increases successively to the distance of the upper surface of lower placenta (8), the first stud (1) on the lower placenta (8) to the inner vortex of the 7th stud (7) on some springback capacity and the outer vortex point springback capacity all reduce successively, point and some outer vortex on of the first stud (1) on the upper placenta (9) to the inner vortex of the 7th stud (7) all reduces successively to the distance of the upper surface of upper placenta (9), the first stud (1) on the upper placenta (9) to the inner vortex of the 7th stud (7) on some springback capacity and the outer vortex point springback capacity all increase successively.
2. coal mining machine roller Variable lead blade forming mold according to claim 1, it is characterized in that the projection cornerite is 108 degree, the inner vortex helical pitch is 240mm, outer vortex helical pitch 275mm, projection internal diameter φ 320mm, projection external diameter φ 720mm, upper placenta (9) and lower placenta (8) shut height 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220418880 CN202715727U (en) | 2012-08-23 | 2012-08-23 | Rolling barrel lead-changing spiral vane forming mould for coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220418880 CN202715727U (en) | 2012-08-23 | 2012-08-23 | Rolling barrel lead-changing spiral vane forming mould for coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202715727U true CN202715727U (en) | 2013-02-06 |
Family
ID=47617565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220418880 Expired - Fee Related CN202715727U (en) | 2012-08-23 | 2012-08-23 | Rolling barrel lead-changing spiral vane forming mould for coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202715727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900212A (en) * | 2017-11-07 | 2018-04-13 | 中国二冶集团有限公司 | A kind of construction method of 1/4 hemispherical dome of quick compacting |
-
2012
- 2012-08-23 CN CN 201220418880 patent/CN202715727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900212A (en) * | 2017-11-07 | 2018-04-13 | 中国二冶集团有限公司 | A kind of construction method of 1/4 hemispherical dome of quick compacting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20160823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |