JPS643490Y2 - - Google Patents
Info
- Publication number
- JPS643490Y2 JPS643490Y2 JP16090283U JP16090283U JPS643490Y2 JP S643490 Y2 JPS643490 Y2 JP S643490Y2 JP 16090283 U JP16090283 U JP 16090283U JP 16090283 U JP16090283 U JP 16090283U JP S643490 Y2 JPS643490 Y2 JP S643490Y2
- Authority
- JP
- Japan
- Prior art keywords
- hollow ball
- pipe
- casting
- iron
- grinding mill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 238000005266 casting Methods 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
Description
【考案の詳細な説明】
本考案は石炭等を粉砕する粉砕ミル用中空ボー
ルに関する。[Detailed Description of the Invention] The present invention relates to a hollow ball for use in a grinding mill for grinding coal and the like.
従来の粉砕ミル用中空ボール１′は第１図に示
す様に鋳鉄又は鋳鋼からなり、その球面に中子砂
支持と鋳造中の発生するガス抜きのための鋳造用
孔２′，２′が開口したままであつた。この鋳造用
孔２′，２′は径が大きく孔あきの状態で使用すれ
ば孔周辺部から著しい摩耗欠損が生じるという欠
点があつた。又これを解消すべく鋳造用孔２′，
２′にプラグ（図示せず）を螺着又は熔接して塞
ぐようにすればよいが、孔周辺部をネジ切り又は
熔接するにしても素材が鋳鉄、鋳鋼であるためそ
の加工、熔接が難しく、又クラツク等の有害欠陥
が発生しやすいといつた問題があつた。本考案は
かかる欠点、問題点を解消した粉砕ミル用中空ボ
ールを提供せんとするものである。 As shown in Fig. 1, a conventional hollow ball 1' for a grinding mill is made of cast iron or cast steel, and its spherical surface has casting holes 2', 2' for supporting core sand and venting gas generated during casting. It remained open. These casting holes 2', 2' have a large diameter, and if used in a perforated state, there is a drawback that significant wear and tear occurs from the periphery of the holes. In order to solve this problem, the casting hole 2',
It is possible to close it by screwing or welding a plug (not shown) to 2', but even if the area around the hole is threaded or welded, processing and welding are difficult because the material is cast iron or cast steel. There was also the problem that harmful defects such as cracks were likely to occur. The present invention aims to provide a hollow ball for a grinding mill that eliminates such drawbacks and problems.
この考案は耐摩耗合金鋳鉄又は鋳鋼からなる中
空ボール本体１の対向した二つの鋳造用孔２，２
に鉄パイプ又は共地金パイプ３を横架状態に鋳ぐ
るんで一体化してなる粉砕ミル用中空ボールに係
るものである。尚図中４は鉄パイプ又は共地金パ
イプ３の係止用突起、５は中子ガス抜き用孔、６
は中空ボール本体１の中空部である。又第３図は
本考案の粉砕ミル用中空ボールの製造方法を示す
説明図であり、図中７は上型、８は下型、９は鉄
パイプ又は共地金パイプ３に取付けた中子、１０
は湯口、１１は押し湯であり、鉄パイプ又は共地
金パイプ３は長くしていて鋳造中は上型７、下型
８に架設して中子９を強固に支持し、鋳造後中空
ボール本体１から突出部分を切除して本考案粉砕
ミル用中空ボールとするものである。 This invention consists of two opposing casting holes 2, 2 in a hollow ball body 1 made of wear-resistant alloy cast iron or cast steel.
This relates to a hollow ball for a grinding mill, which is formed by integrally casting an iron pipe or a common metal pipe 3 in a horizontally suspended state. In addition, 4 in the figure is a protrusion for locking the iron pipe or common metal pipe 3, 5 is a core gas vent hole, and 6
is the hollow part of the hollow ball body 1. FIG. 3 is an explanatory diagram showing the manufacturing method of the hollow ball for a grinding mill according to the present invention. In the figure, 7 is an upper mold, 8 is a lower mold, and 9 is a core attached to an iron pipe or a common metal pipe 3. , 10
1 is a sprue, 11 is a riser, and the iron pipe or common metal pipe 3 is long and is installed over the upper mold 7 and lower mold 8 during casting to firmly support the core 9, and after casting, the hollow ball is The protruding portion is cut off from the main body 1 to obtain a hollow ball for the grinding mill of the present invention.
この考案では鉄パイプ又は共地金パイプ３は中
空ボール本体１の鋳造における中子の支持部材と
なり、砂中子で支持するものに比べ溶湯に対する
浮力に対する強度が大巾に大きくなりパイプ外径
即ち鋳造用孔２，２の径を小さく出来る。従つて
孔径が小さくできるだけ孔周辺部の摩耗、欠損は
少くできる。しかも鉄パイプ又は共地金パイプ３
のパイプ孔をプラグ等で塞ぐためにパイプ内径を
ネジ切り又は熔接することがその素材が鉄又は共
地金であるため容易に出来、しかもクラツク等の
有害欠陥も防止できるものである。 In this invention, the iron pipe or co-metallic pipe 3 serves as a support member for the core in casting the hollow ball body 1, and the strength against buoyancy against the molten metal is significantly greater than that supported by a sand core. The diameter of the casting holes 2, 2 can be made smaller. Therefore, by making the hole diameter small, wear and damage around the hole can be minimized as much as possible. Moreover, iron pipe or common metal pipe 3
Threading or welding the inner diameter of the pipe to plug the pipe hole with a plug or the like can be easily done because the material is iron or common metal, and harmful defects such as cracks can be prevented.
以上の様に本考案によれば鋳造用孔２，２の孔
径、パイプ径を小さくできるため孔周辺部の摩
耗、欠損は大巾に小さくでき、粉砕ミル用中空ボ
ールの性能を高め、又パイプ孔を塞ぐこともネジ
切り、熔接が容易に出来るため加工上の困難さも
なく又クラツク等の有害欠陥を少くでき、更に鉄
パイプ又は共地金パイプ３が中子支持部材を兼ね
るので製作も簡単に行えるという優れた効果があ
る。 As described above, according to the present invention, the hole diameters of the casting holes 2, 2 and the pipe diameter can be reduced, so the wear and damage around the holes can be greatly reduced, the performance of the hollow balls for crushing mills is improved, and the pipe diameter can be reduced. Since the holes can be easily plugged, threaded, and welded, there is no difficulty in processing, and harmful defects such as cracks can be reduced.Furthermore, since the iron pipe or common metal pipe 3 also serves as the core support member, manufacturing is easy. It has the excellent effect of being able to be used for
第１図は従来の粉砕ミル用中空ボールを示す断
面図、第２図は本考案の粉砕ミル用中空ボールを
示す断面図、第３図は本考案の製造方法を示す説
明図である。
１，１′：中空ボール本体、２，２′：鋳造用
孔、３：鉄パイプ又は共地金パイプ。
FIG. 1 is a sectional view showing a conventional hollow ball for a grinding mill, FIG. 2 is a sectional view showing a hollow ball for a grinding mill according to the present invention, and FIG. 3 is an explanatory view showing the manufacturing method of the present invention. 1, 1': hollow ball body, 2, 2': casting hole, 3: iron pipe or common metal pipe.
Claims (1)
体１の対向した二つの鋳造用孔２，２に鉄パイプ
又は共地金パイプ３を横架状態に鋳ぐるんで一体
化してなる粉砕ミル用中空ボール。 A hollow ball for a grinding mill is formed by integrally casting an iron pipe or a metal pipe 3 horizontally in two opposing casting holes 2, 2 of a hollow ball body 1 made of wear-resistant alloy cast iron or cast steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16090283U JPS6071352U (en) | 1983-10-18 | 1983-10-18 | Hollow ball for grinding mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16090283U JPS6071352U (en) | 1983-10-18 | 1983-10-18 | Hollow ball for grinding mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6071352U JPS6071352U (en) | 1985-05-20 |
| JPS643490Y2 true JPS643490Y2 (en) | 1989-01-30 |
Family
ID=30353773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16090283U Granted JPS6071352U (en) | 1983-10-18 | 1983-10-18 | Hollow ball for grinding mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6071352U (en) |
-
1983
- 1983-10-18 JP JP16090283U patent/JPS6071352U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6071352U (en) | 1985-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101293273A (en) | A kind of manufacturing method of low segregation large hollow steel ingot | |
| CN101134227A (en) | Grinder shell cover casting method | |
| JP2001129653A (en) | Method of manufacturing female screw part and cast part | |
| JPH0679402A (en) | Hollow sphere casting method | |
| JP4325527B2 (en) | Belt wheel type continuous casting machine, ring mold for belt wheel type continuous casting machine, rough drawing wire manufacturing apparatus and manufacturing method | |
| US2107513A (en) | Centrifugal cast | |
| US2867871A (en) | Hot-top for ingot mold | |
| JPS5937322Y2 (en) | Socket structure for gas introduction used in pouring nozzle | |
| JP2882448B2 (en) | Centrifugal casting metal frame | |
| JPH02299744A (en) | Manufacture of arm for thin casting-made suspension | |
| JPS5857262B2 (en) | Spheroidal graphite cast iron centrifugal casting casting | |
| US3786855A (en) | Rotary casting method of killed steel | |
| JPH084186Y2 (en) | Partition plate for casting | |
| JPH0126787B2 (en) | ||
| JPS61172652A (en) | Casting mold for production of rolling roll | |
| JPH0137807Y2 (en) | ||
| JPS6048227B2 (en) | Ball for grinding mill | |
| CN119304131A (en) | A steel ingot and its casting method, heat-insulating chassis | |
| JPS6323513Y2 (en) | ||
| JPH0415404Y2 (en) | ||
| US3358359A (en) | Method of making a socket mold | |
| JPH0515561B2 (en) | ||
| JPS6121747A (en) | Casting of mill ball | |
| JPH0327299B2 (en) | ||
| Sokolov | The Quality of Carbon and Alloy Tube Steel Billets |