CA2077366A1 - Spiderless conical gyratory crusher - Google Patents
Spiderless conical gyratory crusherInfo
- Publication number
- CA2077366A1 CA2077366A1 CA002077366A CA2077366A CA2077366A1 CA 2077366 A1 CA2077366 A1 CA 2077366A1 CA 002077366 A CA002077366 A CA 002077366A CA 2077366 A CA2077366 A CA 2077366A CA 2077366 A1 CA2077366 A1 CA 2077366A1
- Authority
- CA
- Canada
- Prior art keywords
- head cap
- spiderless
- disk
- gyratory crusher
- main shaft
- 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.)
- Abandoned
Links
- 238000005299 abrasion Methods 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000007790 scraping Methods 0.000 description 3
- 241001163743 Perlodes Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/005—Lining
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A spiderless conical gyratory crusher wherein the life of a head cap is comparatively long. The spiderless conical gyratory crusher comprises a main shaft, a head cap mounted at the top of the main shaft for protecting the top end portion of the main shaft from raw ores thrown into the crusher, and a disk-shaped liner made of an abrasion resisting resin such as an abrasion resisting rubber and securely mounted at the top of the head cap, for example. by means of a bolt.
The disk-shaped liner has an outer diameter greater than the outer diameter of the top of the head cap and is chamfered in an inverted truncated conical shape at a bottom portion thereof.
A spiderless conical gyratory crusher wherein the life of a head cap is comparatively long. The spiderless conical gyratory crusher comprises a main shaft, a head cap mounted at the top of the main shaft for protecting the top end portion of the main shaft from raw ores thrown into the crusher, and a disk-shaped liner made of an abrasion resisting resin such as an abrasion resisting rubber and securely mounted at the top of the head cap, for example. by means of a bolt.
The disk-shaped liner has an outer diameter greater than the outer diameter of the top of the head cap and is chamfered in an inverted truncated conical shape at a bottom portion thereof.
Description
~07736~
TITLE OF THE INVENTION
Splderless Conical Gyratory Crusher BACKGROUND OF THE INVENTION
1. Fleld of the Invention ~ his invention relates to a spiderless conical gyratory crusher which reduces abrasion of a head cap by raw ores thrown therein upon crushlns of ores and ls long ln llfe.
TITLE OF THE INVENTION
Splderless Conical Gyratory Crusher BACKGROUND OF THE INVENTION
1. Fleld of the Invention ~ his invention relates to a spiderless conical gyratory crusher which reduces abrasion of a head cap by raw ores thrown therein upon crushlns of ores and ls long ln llfe.
2. Descriptlon of the Related Art Various types of crushers for crushlng objects for crushing are already known, and one of popular crushers is a crusher of *he type called.spiderless conlcal gyratory crusher. An exemplary one of.
.
conventional spiderless conlcal gyratory crushers is shown in Fig. 2. Referring to Fig. 2, the crusher shown is constructed such that raw ores are thrown from above :: ~
into the crusher by means of a conveyor of a chute. The raw ores thus thrown in are crushed between a mantle 22 mounted on a rotating main shaft 21 and a cone cabling 23 ~
ince raw ores are thrown in from abo~e the main shaft 21, an upper portion of the main shaft 21 is protected~by a head cap 24. The hea~d cap 24 is abraded ~ , .. .~ . . . . .
~. . ' ' ' ' -- . :
- .:; -.
- -. . . . . . . .
., ~ ~, . . . . .
.
2~3773~
very fast by abrasion by scraping of raw ores thrown in and the life of the head cap 24 has a signlflcant influence on the productivity of the spiderless conlcal gyratory crusher. AccordirlBly~ various invention has been made ln order to prevent abraslon of a head cap.
According to a countermeasure for the prevention of abrasion of a head cap, a liner made of steel is mounted at an upper portion of a head cap and is replaced at a point of time when it ls abraded.
According to another countermeasure, as shown in Fig. 2, a raw ore recelver 25 made of steel is provlded at the top of the head cap 24 so as to prevent abrasion of the head cap 24 making use of raw ores 26 in the raw ore receiver 25.
However. with the spiderIess conical gyratory crusher of the~construction described above, there is no problem~ partlcularly in operation of the crusher for a short~period of~time, but the follo~ing problem takes place in operation of the crusher for a long period of tlme. ~In partl~cular. the llner made of s~teel Is abraded at~a surface~:thereof by operation of the or;usher for a long period~of tlme, and also the ra~w ore receiver made of~steel l~s~a~brad~ed at a side~face thersof~by~operatlon o~f the~crushe~r~for a long~p~e~r~iod;of~t~i~m~e.~and~i~n ord0r ...
-: ,~: -. ` . ' ~ :
~, . . .
2~77366 to replace elther of the liner and the raw ore receiver, a crushing operation must be stopped, which ls one of causes of deterloration of the productivity.
Incidentally, the life of a head cap ls 2 to 6 months or so where a steel liner is employed, but is about 3 months where an ore receiver is provided, SUMMARY OF THE~INVENTION
It ls an ob~ect of the present invention to provide a spiderless conical gyratorY crusher wherein the life of a head cap is comparatively long.
According to the present invention, there is provided a spiderless conical gyratory crusher which comprlses a main shaft, a head cap mounted at the top of the main shaft for protecting the top end portion of the main shaft from raw ores thrown lnto the crusher, and a disk-shaped liner made of an abrasion resisting resin and~securely mounted at the top of the head cap, the disk-shaped liner having an outer diameter greater than the outer ùiameter of the top of the head cap, the disk-shaped liner being chamfered in an inverted truncated . :
conical shape at a bottom portion thereof. Preferably.
the abrasion res~isting resin of the disk-shaped liner is an~abrasi~on reslsting rubber. The the disk-shaped liner ; 3 : ~ , : :
.
:~ ~ ' , .
: ` ` ~ ' ~ ' . :
2n77366 may be secured to the head cap by means of a bolt.
Since the disk-shaped liner made of an abrasion resisting resin is securely mounted at the top of the head cap. abrasion of the head cap by scraplng of raw ores can be reduced. In particular, the llner made of an abrasion reslsting resin absorbs.lmpact energy of raw ores due to the reslliency of the resin raterial, and accordingly. the abrasion by scraping can be reduced as different from a steel liner and an ore recelver.
Accordlngly, the lnterval tlll replacement of the llner ls increased.
.Further, since the outer diameter of the disk-shaped liner is greater than the outer diameter of the top portlon of the head cap. the head cap ls prevented, when raw ores are thrown in. from being hit directly by :~ the raw ores, and abrasion of the head cap by scraping can be reduced.
, ~ :
;: In addition, since the disk-shaped liner is chamfered in an inverted truncated conical shape at the botto~m~portlon~thereof,~when~raw:ores are thrown in to a hel~ght exceeding:th;e top portLon of th~e head cap, a force~acting~from below upon the disk-shaped liner escapes fr~om~the disk-shaped liner thereby to prevent h:~ d~lsk-shap~;d~ el~from belng let off:from the top of - : . : : . . .
:
. .
::
: ~ ~ , , 3 ~ ~
the head cap.
Wlth the spiderless conlcal gyratory crusher according to the present invention, the life of the head cap is elongated, and a crushing operation of the crusher for a long period of time is assured and the ~ . .
productivity of the crusher is high.
The above and other objects, features and advantages of the present invention will become apparent from the following descriptlon and the appended claims, taken in conJunction with the accompanying drawings ln which like parts or elements are denoted by like reference characters.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. lta) is a vertical sectional view of part of a spiderless conical gyratory crusher showing a preferred embodiment of the present invention;
. . ~ : , Fig. 1(b) is an enlarged exploded sectional view . showing detall~s~o:~ the spiderless conical gyratory crusher~of Fig. l(a): and F1g.~2~1s~a vertical~secti~onal vie~ showing a ~on~ent~ nal~ ~PId~crless con~cal ~yra l~r~ ;c ~I-h-r 2077~
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referrlng to Flgs. l(a) and 1(b). there ls shown a spiderless conlcal gyratory crusher to whlch the present invention is applied. The splderless conical gyratory crusher shown lncludes a liner 1 having a generally dlsk-shaped proflle and havlng an outer dlameter greater than the outer diameter of the top of a head cap 24 on which the liner 1 is to be securely mounted. The liner 1 includes a steel plate 3 and an abrasion resistlng rubber body 2 formed by baking on a surface of the steel plate 3. The abrasion resisting rubber body 2 of the liner 1 is chamfered at a bottom portion thereof as at 4.
The liner 1 is securely mounted at the top of the head cap 24 by means of a bolt 6 with a hexagonal hole~on whlch a spring washer 7 is fitted and which is inserted in a through-hole 5 formed in the liner 1 and screwed tightly in a bolt hole 8 formed at the top of the head cap 24 to secure the steel plate 3 of the liner 1 to the top of the head cap~24. After the liner 1 is securely mounted. a rubber plug 9 i~s fitted into the throùgh-hole 5. Preferably. an anaerobic sealing material for the~preventlon.of~loosenlng is applied~to the bolt 6 be~fore tlghtening. ~ ~
: ~: : : : ~
: ` : .
:: , :. : , .
2~7736~
Crushlng of raw ores was actually performed for a long perlod of time with a spiderless conical gyratory crusher constructed in accordance wlth the present invention wherein the llner 1 described above is securely mounted at the top of the head cap 24 in such a manner as descrlbed above. As a result, since the outer diameter of the liner is greater than the outer diameter of the head cap, little abrasion took place with the head cap upon throwing in of raw materials, and since the liner is chamfered at the bottom portion thereof, a force applied from beloYI upon the liner escaped from the liner, and no loosening nor break of the bolt with a hexagonal hole took place and also no letting off of the liner from the top of the head cap took place. The abrasion of th:e llner was less than that of a steel liner and a raw ore receiver, and the llfe was one year or so and elongated In contrast with 2 to 6 months of a conventional spiderless con~ical gyratory crusher.
Having now fully described the invention, it wlll be apparent to one of ordlnary skill in the art that many~ch~ange~s an~d~modificat~lons~can be made thereto without:depart:~ing from:the spirit and scope of the invention as:se~t~forth herein. :
:::~: : .
~: :: :
:~: :
.
conventional spiderless conlcal gyratory crushers is shown in Fig. 2. Referring to Fig. 2, the crusher shown is constructed such that raw ores are thrown from above :: ~
into the crusher by means of a conveyor of a chute. The raw ores thus thrown in are crushed between a mantle 22 mounted on a rotating main shaft 21 and a cone cabling 23 ~
ince raw ores are thrown in from abo~e the main shaft 21, an upper portion of the main shaft 21 is protected~by a head cap 24. The hea~d cap 24 is abraded ~ , .. .~ . . . . .
~. . ' ' ' ' -- . :
- .:; -.
- -. . . . . . . .
., ~ ~, . . . . .
.
2~3773~
very fast by abrasion by scraping of raw ores thrown in and the life of the head cap 24 has a signlflcant influence on the productivity of the spiderless conlcal gyratory crusher. AccordirlBly~ various invention has been made ln order to prevent abraslon of a head cap.
According to a countermeasure for the prevention of abrasion of a head cap, a liner made of steel is mounted at an upper portion of a head cap and is replaced at a point of time when it ls abraded.
According to another countermeasure, as shown in Fig. 2, a raw ore recelver 25 made of steel is provlded at the top of the head cap 24 so as to prevent abrasion of the head cap 24 making use of raw ores 26 in the raw ore receiver 25.
However. with the spiderIess conical gyratory crusher of the~construction described above, there is no problem~ partlcularly in operation of the crusher for a short~period of~time, but the follo~ing problem takes place in operation of the crusher for a long period of tlme. ~In partl~cular. the llner made of s~teel Is abraded at~a surface~:thereof by operation of the or;usher for a long period~of tlme, and also the ra~w ore receiver made of~steel l~s~a~brad~ed at a side~face thersof~by~operatlon o~f the~crushe~r~for a long~p~e~r~iod;of~t~i~m~e.~and~i~n ord0r ...
-: ,~: -. ` . ' ~ :
~, . . .
2~77366 to replace elther of the liner and the raw ore receiver, a crushing operation must be stopped, which ls one of causes of deterloration of the productivity.
Incidentally, the life of a head cap ls 2 to 6 months or so where a steel liner is employed, but is about 3 months where an ore receiver is provided, SUMMARY OF THE~INVENTION
It ls an ob~ect of the present invention to provide a spiderless conical gyratorY crusher wherein the life of a head cap is comparatively long.
According to the present invention, there is provided a spiderless conical gyratory crusher which comprlses a main shaft, a head cap mounted at the top of the main shaft for protecting the top end portion of the main shaft from raw ores thrown lnto the crusher, and a disk-shaped liner made of an abrasion resisting resin and~securely mounted at the top of the head cap, the disk-shaped liner having an outer diameter greater than the outer ùiameter of the top of the head cap, the disk-shaped liner being chamfered in an inverted truncated . :
conical shape at a bottom portion thereof. Preferably.
the abrasion res~isting resin of the disk-shaped liner is an~abrasi~on reslsting rubber. The the disk-shaped liner ; 3 : ~ , : :
.
:~ ~ ' , .
: ` ` ~ ' ~ ' . :
2n77366 may be secured to the head cap by means of a bolt.
Since the disk-shaped liner made of an abrasion resisting resin is securely mounted at the top of the head cap. abrasion of the head cap by scraplng of raw ores can be reduced. In particular, the llner made of an abrasion reslsting resin absorbs.lmpact energy of raw ores due to the reslliency of the resin raterial, and accordingly. the abrasion by scraping can be reduced as different from a steel liner and an ore recelver.
Accordlngly, the lnterval tlll replacement of the llner ls increased.
.Further, since the outer diameter of the disk-shaped liner is greater than the outer diameter of the top portlon of the head cap. the head cap ls prevented, when raw ores are thrown in. from being hit directly by :~ the raw ores, and abrasion of the head cap by scraping can be reduced.
, ~ :
;: In addition, since the disk-shaped liner is chamfered in an inverted truncated conical shape at the botto~m~portlon~thereof,~when~raw:ores are thrown in to a hel~ght exceeding:th;e top portLon of th~e head cap, a force~acting~from below upon the disk-shaped liner escapes fr~om~the disk-shaped liner thereby to prevent h:~ d~lsk-shap~;d~ el~from belng let off:from the top of - : . : : . . .
:
. .
::
: ~ ~ , , 3 ~ ~
the head cap.
Wlth the spiderless conlcal gyratory crusher according to the present invention, the life of the head cap is elongated, and a crushing operation of the crusher for a long period of time is assured and the ~ . .
productivity of the crusher is high.
The above and other objects, features and advantages of the present invention will become apparent from the following descriptlon and the appended claims, taken in conJunction with the accompanying drawings ln which like parts or elements are denoted by like reference characters.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. lta) is a vertical sectional view of part of a spiderless conical gyratory crusher showing a preferred embodiment of the present invention;
. . ~ : , Fig. 1(b) is an enlarged exploded sectional view . showing detall~s~o:~ the spiderless conical gyratory crusher~of Fig. l(a): and F1g.~2~1s~a vertical~secti~onal vie~ showing a ~on~ent~ nal~ ~PId~crless con~cal ~yra l~r~ ;c ~I-h-r 2077~
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referrlng to Flgs. l(a) and 1(b). there ls shown a spiderless conlcal gyratory crusher to whlch the present invention is applied. The splderless conical gyratory crusher shown lncludes a liner 1 having a generally dlsk-shaped proflle and havlng an outer dlameter greater than the outer diameter of the top of a head cap 24 on which the liner 1 is to be securely mounted. The liner 1 includes a steel plate 3 and an abrasion resistlng rubber body 2 formed by baking on a surface of the steel plate 3. The abrasion resisting rubber body 2 of the liner 1 is chamfered at a bottom portion thereof as at 4.
The liner 1 is securely mounted at the top of the head cap 24 by means of a bolt 6 with a hexagonal hole~on whlch a spring washer 7 is fitted and which is inserted in a through-hole 5 formed in the liner 1 and screwed tightly in a bolt hole 8 formed at the top of the head cap 24 to secure the steel plate 3 of the liner 1 to the top of the head cap~24. After the liner 1 is securely mounted. a rubber plug 9 i~s fitted into the throùgh-hole 5. Preferably. an anaerobic sealing material for the~preventlon.of~loosenlng is applied~to the bolt 6 be~fore tlghtening. ~ ~
: ~: : : : ~
: ` : .
:: , :. : , .
2~7736~
Crushlng of raw ores was actually performed for a long perlod of time with a spiderless conical gyratory crusher constructed in accordance wlth the present invention wherein the llner 1 described above is securely mounted at the top of the head cap 24 in such a manner as descrlbed above. As a result, since the outer diameter of the liner is greater than the outer diameter of the head cap, little abrasion took place with the head cap upon throwing in of raw materials, and since the liner is chamfered at the bottom portion thereof, a force applied from beloYI upon the liner escaped from the liner, and no loosening nor break of the bolt with a hexagonal hole took place and also no letting off of the liner from the top of the head cap took place. The abrasion of th:e llner was less than that of a steel liner and a raw ore receiver, and the llfe was one year or so and elongated In contrast with 2 to 6 months of a conventional spiderless con~ical gyratory crusher.
Having now fully described the invention, it wlll be apparent to one of ordlnary skill in the art that many~ch~ange~s an~d~modificat~lons~can be made thereto without:depart:~ing from:the spirit and scope of the invention as:se~t~forth herein. :
:::~: : .
~: :: :
:~: :
Claims (3)
1. A splderless conical gyratory crusher, comprising:
a main shaft;
a head cap mounted at the top of said main shaft for protecting the top end portion of said main shaft from raw ores thrown into said crusher: and a disk-shaped liner made of an abrasion resisting resin and securely mounted at the top of said head cap, said disk-shaped liner having an outer diameter greater than the outer diameter of the top of said head cap, said disk-shaped liner being chamfered in an Inverted truncated conical shape at a bottom portion thereof.
a main shaft;
a head cap mounted at the top of said main shaft for protecting the top end portion of said main shaft from raw ores thrown into said crusher: and a disk-shaped liner made of an abrasion resisting resin and securely mounted at the top of said head cap, said disk-shaped liner having an outer diameter greater than the outer diameter of the top of said head cap, said disk-shaped liner being chamfered in an Inverted truncated conical shape at a bottom portion thereof.
2. A spiderless conical gyratory crusher according to: claim l, wherein the abrasion resisting resin of said disk-shaped liner is an abrasion resisting rubber.
3. A spiderless conical gyratory crusher according to claim 1 or 2, wherein said disk-shaped liner is secured to said head cap by means of a bolt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7001391U JPH0522038U (en) | 1991-09-02 | 1991-09-02 | Spiderless conical rotary crusher |
| JP3-70013 | 1991-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2077366A1 true CA2077366A1 (en) | 1993-03-05 |
Family
ID=13419298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002077366A Abandoned CA2077366A1 (en) | 1991-09-02 | 1992-09-02 | Spiderless conical gyratory crusher |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0522038U (en) |
| CA (1) | CA2077366A1 (en) |
| GB (1) | GB2259028A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2765122B1 (en) * | 1997-06-30 | 1999-08-27 | Fcb | SUPPLY DEVICE FOR MATERIAL PROCESSING PLANT AND VIBRATING CRUSHER WITH VERTICAL CONE EQUIPPED WITH SUCH A DEVICE |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB675690A (en) * | 1950-02-23 | 1952-07-16 | Frederick John Edwin China | Improvements in and relating to colloid mills |
| US3750967A (en) * | 1971-12-27 | 1973-08-07 | Barker Greene Co | Gyratory crusher having interchangeable head mantles |
| GB1419791A (en) * | 1973-03-13 | 1975-12-31 | Rovere V | Grinding mills |
| US4192472A (en) * | 1978-04-17 | 1980-03-11 | Johnson Louis W | Cone crusher |
| US4198003A (en) * | 1979-03-19 | 1980-04-15 | Barber-Greene Company | Quick release for gyratory crusher concave |
| JPS5639934A (en) * | 1979-09-04 | 1981-04-15 | Kyokuto Kaihatsu Kogyo Co Ltd | Rear gate opening and closing device |
| JPH02258072A (en) * | 1989-03-30 | 1990-10-18 | Kurimoto Ltd | Revolving crusher |
-
1991
- 1991-09-02 JP JP7001391U patent/JPH0522038U/en active Pending
-
1992
- 1992-08-19 GB GB9217634A patent/GB2259028A/en not_active Withdrawn
- 1992-09-02 CA CA002077366A patent/CA2077366A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| GB2259028A (en) | 1993-03-03 |
| GB9217634D0 (en) | 1992-09-30 |
| JPH0522038U (en) | 1993-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |