JP2503485Y2 - Crusher striker - Google Patents

Description

【考案の詳細な説明】 「産業上の利用分野」 本案は原料を直立回転軸の上端の回転ディスクの中央
部に供給し、該ディスクの外周に等間隔に設けた複数の
打撃子とのインパクトによって破砕するクラッシャーの
打撃子に関するものである。[Detailed Description of the Invention] "Industrial field of application" The present invention supplies raw material to the center of a rotating disc at the upper end of an upright rotating shaft, and impacts it with a plurality of impacters provided at equal intervals on the outer periphery of the disc. It relates to the crusher striker that is crushed by.

「従来の技術」 従来、上記クラッシャーの打撃子は原料とのインパク
トによって側面に摩耗凹部が形成されて偏摩耗し、打撃
子の重量が次第に低減する。摩耗の程度は各打撃子にお
いて、それぞれ異るため各打撃子には重量の変動が認め
られるようになる。この状態では破砕機本体に過大な振
動が発生し、偏摩耗した打撃子を更新する必要を生じ寿
命が短いという問題がある。“Prior Art” Conventionally, the impact element of the crusher has a wear recess formed on the side surface due to impact with the raw material and is unevenly worn, and the weight of the impact element is gradually reduced. Since the degree of wear is different for each striker, the weight of each striker can be changed. In this state, excessive vibration is generated in the crusher main body, and it becomes necessary to renew the impacting element that is unevenly worn, resulting in a short life.

又ハンマーに水平方向の同一径の孔を開口し、該孔に
重量調整用おもりを挿入するものがあるが、ハンマーの
高速回転によっておもりが孔から飛び出すという欠陥が
ある。Further, there is a hammer in which a hole having the same diameter in the horizontal direction is opened and a weight adjusting weight is inserted into the hole, but there is a defect that the weight pops out of the hole due to high speed rotation of the hammer.

又打撃子は鋳物によって形成されているため、鋳型内
における冷却速度の相違に基く内外部の硬度に変動があ
り、均一でないため摩耗度が速いという問題があった。Further, since the hitting element is formed by casting, there is a problem that the inner and outer hardnesses vary due to the difference in the cooling rate in the mold, and the wear degree is high because it is not uniform.

「考案が解決しようとする課題」 本案は偏摩耗による打撃子の重量軽減を補充して破砕
機の過大振動を防止し、かつ打撃子の内外硬度を均一化
して偏摩耗を抑制することを目的とするものである。[Problems to be solved by the invention] The purpose of the present invention is to prevent the excessive vibration of the crusher by supplementing the weight reduction of the impactor due to the uneven wear, and to make the inner and outer hardness of the impactor uniform to suppress the uneven wear. It is what

「課題を解決するための手段」 上記の目的を達成するため本案は機枠に設けた直立回
転軸の上端に回転ディスクを設け、該ディスクの中央部
に原料投入放出部を形成し、上記ディスクの外周部に複
数の打撃子の基部を直立軸によって枢支し、上記放出部
から放出される原料を該打撃子の側面で衝撃破砕する破
砕機において、上記打撃子の中程に下端径が上端径より
小さいテーパ内周面を有する上下方向の透孔を穿設し、
該透孔内周面と平行な外周面を有する該打撃子の重量調
整用具を上記透孔内に嵌合保持可能に形成してなる破砕
機の打撃子 によって構成される。[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a rotating disk at the upper end of an upright rotating shaft provided in a machine frame, and forms a raw material charging / discharging part at the center of the disk. In a crusher in which the bases of a plurality of impactors are pivotally supported by an upright shaft on the outer peripheral part of the crusher, and the raw material discharged from the discharge section is impact crushed on the side surface of the impactor, the lower end diameter is in the middle of the impactor. A vertical through hole having a tapered inner peripheral surface smaller than the upper end diameter is bored,
The hitting element of the crusher is configured so that a weight adjusting tool for the hitting element having an outer peripheral surface parallel to the inner peripheral surface of the through hole can be fitted and held in the through hole.

「作用」 従って直立回転軸４を高速回転させると回転ディスク
５が高速回転する。その状態で該ディスク５の中央部に
ある原料投入放出部６に砕石原料を投入すると、該原料
は該ディスク５の高速回転に伴って高速で放出され、該
ディスク５の外周部の上記打撃子１の側面１′に衝撃又
は打撃して破砕される動作を行う。この繰返し動作によ
って打撃子１の側面１′が第２図仮想線で示すように摩
耗して凹部が形成され打撃子１の重量が減少する。上記
摩耗は複数の打撃子１において一律でないため、上記デ
ィスク５に不均等回転荷重が掛り過大な振動を発生す
る。その状態において上記回転を停止し、打撃子１を直
立軸７から取外し、重量を計量して不足重量と当量の重
量調整用具３（鉛塊を用いるが、嵌合容器内に砂、金属
粒を加減収容するようにしても良い）を透孔２内に嵌合
させて全打撃子１の重量を均等に調整し、これを再度上
記直立軸７に枢支し、上述同様の高速回転を行うと上記
過大振動は消滅し、上述同様の原料破砕動作を過大振動
なく行うことができる。"Operation" Therefore, when the upright rotation shaft 4 is rotated at high speed, the rotating disk 5 is rotated at high speed. In this state, when crushed stone raw material is charged into the raw material charging / discharging portion 6 in the central portion of the disk 5, the raw material is discharged at a high speed as the disk 5 rotates at high speed, and the impact element on the outer peripheral portion of the disk 5 is discharged. The side surface 1'of 1 is crushed by impact or impact. By this repeated operation, the side surface 1'of the striker 1 is worn as shown by the phantom line in FIG. 2 to form a recess, and the weight of the striker 1 is reduced. Since the wear is not uniform in the plurality of hitting elements 1, an uneven rotation load is applied to the disk 5 and excessive vibration is generated. In that state, the rotation is stopped, the striker 1 is removed from the upright shaft 7, the weight is weighed, and a weight adjusting tool 3 (a lead lump is used, but sand and metal particles are used in the fitting container) The weight of all the strikers 1 may be adjusted evenly by fitting them into the through hole 2 and then pivotally supported by the upright shaft 7 again to perform the same high-speed rotation as described above. The above-mentioned excessive vibration disappears, and the same material crushing operation as described above can be performed without excessive vibration.

「実施例」 機枠８に直立回転軸４を支持し、その上端に該軸４と
同心円の回転ディスク５を設ける。該ディスク５の中央
部には砕石塊原料受面６′の外周に等間隔に原料放出打
撃面６″を有する側面開口部６を設けて原料投入放出
部６を形成する。又上記ディスク５の外周部には複数
（上記打撃面６″と同数）の直立軸７を等間隔に設け、
該直立軸７に打撃子１の基部に穿設した大径透孔９を嵌
合して該打撃子１を枢支又は遊支する。この打撃子１は
図示するように本体をお扇形となし、その側面１′で上
記打撃面６″によって叩かれて放出す原料を衝撃破砕す
ることができる。このように形成した破砕機において、
上記打撃子１の本体の中央部に上端径より下端径の小さ
いテーパ内周面２′を有する垂直透孔２を穿設し、上記
内周面２′と平行な外周面を有する上記打撃子１の重量
調整用具３を該透孔２内に嵌合して固定することができ
る。尚図中10で示すものは回転ディスク５の外側に列設
した砕石受金である。"Embodiment" The upright rotating shaft 4 is supported by the machine frame 8, and the rotating disk 5 concentric with the shaft 4 is provided at the upper end thereof. In the central portion of the disk 5, side material openings 6 having raw material discharge striking surfaces 6 ″ are provided on the outer periphery of the crushed lump mass raw material receiving surface 6 ′ to form the raw material charging / discharging portion 6. Further, the disk 5 is formed. A plurality of (the same number as the striking surface 6 ″) upright shafts 7 are provided at equal intervals on the outer peripheral portion,
The upright shaft 7 is fitted with a large-diameter through hole 9 formed in the base of the striker 1 to pivotally or loosely support the striker 1. The striker 1 has a fan-shaped main body as shown in the figure, and its side surface 1'can impact-crush the raw material that is hit by the impact surface 6 "and discharged. In the crusher thus formed,
A vertical through hole 2 having a tapered inner peripheral surface 2'having a smaller lower end diameter than the upper end diameter is bored in the center of the main body of the above-mentioned percussion element 1, and the perforation element having an outer peripheral surface parallel to the inner peripheral surface 2 '. The weight adjusting tool 3 of No. 1 can be fitted and fixed in the through hole 2. Reference numeral 10 in the drawing denotes a crushed stone receiver arranged in line on the outside of the rotary disk 5.

「考案の効果」 本案は上述のように構成したので打撃子１の偏摩耗に
よる重量減少を補充し得て複数の打撃子１の重量を均一
化し、過大振動を防止し得るばかりでなく打撃子１の耐
用命数を延長し得るものである。又打撃子１の鋳造に際
し外周部及び中央部の透孔２から同時に冷却し得て冷却
速度による硬度むらを均し、材質の均一化を計り得る効
果がある。[Advantage of the Invention] Since the present invention is configured as described above, it is possible to supplement the weight reduction due to uneven wear of the hitting elements 1 to make the weights of the plurality of hitting elements 1 uniform and prevent excessive vibration. The service life of 1 can be extended. Further, when casting the hitting element 1, it is possible to simultaneously cool through the through holes 2 in the outer peripheral portion and the central portion, so that the hardness unevenness due to the cooling rate can be leveled and the material can be made uniform.

【図面の簡単な説明】[Brief description of drawings]

第１図は本案の打撃子を備えた破砕機を示す平面図、第
２図は上記打撃子の斜視図、第３図は第２図Ａ−Ａ線に
よる縦断面図、第４図は第１図の一部拡大縦断正面図で
ある。 １……打撃子、２……透孔、３……重量調整用具。FIG. 1 is a plan view showing a crusher equipped with a striker according to the present invention, FIG. 2 is a perspective view of the striker, FIG. 3 is a longitudinal sectional view taken along line AA in FIG. 2, and FIG. FIG. 1 is a partially enlarged vertical front view of FIG. 1. 1 ... striker, 2 ... through hole, 3 ... weight adjusting tool.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request] 【請求項１】機枠に設けた直立回転軸の上端に回転ディ
スクを設け、該ディスクの中央部に原料投入放出部を形
成し、上記ディスクの外周部に複数の打撃子の基部を直
立軸によって枢支し、上記放出部から放出される原料を
該打撃子の側面で衝撃破砕する破砕機において、上記打
撃子の中程に下端径が上端径より小さいテーパ内周面を
有する上下方向の透孔を穿設し、該透孔内周面と平行な
外周面を有する該打撃子の重量調整用具を上記透孔内に
嵌合保持可能に形成してなる破砕機の打撃子。1. An upright rotating shaft provided on a machine frame is provided with a rotating disk at the upper end thereof, a raw material charging / discharging portion is formed at a central portion of the disk, and a plurality of bases of impacting elements are provided on an outer peripheral portion of the disk. In a crusher which is pivotally supported by the crusher and impact crushes the raw material discharged from the discharging part on the side surface of the hitting element, a vertical direction having a taper inner peripheral surface with a lower end diameter smaller than the upper end diameter in the middle of the hitting element. A striker for a crusher, which has a through hole and is formed so that a weight adjusting tool for the striker having an outer peripheral surface parallel to the inner peripheral surface of the through hole can be fitted and held in the through hole.