JPH0524467Y2 - - Google Patents

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Publication number
JPH0524467Y2
JPH0524467Y2 JP1982177330U JP17733082U JPH0524467Y2 JP H0524467 Y2 JPH0524467 Y2 JP H0524467Y2 JP 1982177330 U JP1982177330 U JP 1982177330U JP 17733082 U JP17733082 U JP 17733082U JP H0524467 Y2 JPH0524467 Y2 JP H0524467Y2
Authority
JP
Japan
Prior art keywords
chamber
piston
cap
compressed air
valve
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 - Lifetime
Application number
JP1982177330U
Other languages
Japanese (ja)
Other versions
JPS5982681U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP17733082U priority Critical patent/JPS5982681U/en
Publication of JPS5982681U publication Critical patent/JPS5982681U/en
Application granted granted Critical
Publication of JPH0524467Y2 publication Critical patent/JPH0524467Y2/ja
Granted legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は供給する圧縮空気の圧力の調整をする
ことにより衝撃力を無段階かつ広範囲に設定でき
るエアハンマに関する。
[Detailed Description of the Invention] The present invention relates to an air hammer in which the impact force can be set steplessly over a wide range by adjusting the pressure of compressed air to be supplied.

粉体を収納したホツパ内に生ずるブリツジ現象
やホツパ内壁面への粉体の付着等を防止するため
にホツパ壁を槌打するエアハンマが用いられてい
る。
An air hammer is used to hammer the hopper wall in order to prevent the bridging phenomenon that occurs in the hopper containing the powder and the adhesion of the powder to the inner wall surface of the hopper.

まず、従来用いられていたエアハンマの構成を
説明し、併せてその問題点に言及する。
First, the configuration of a conventionally used air hammer will be explained, and its problems will also be mentioned.

第1図はエアハンマの従来例を示す構成図であ
る。シリンダ20内にはシール21が設けられた
マグネツトピストン22が気密を保つて挿入され
ており、シリンダ20のヘツド側からエアタンク
23に蓄圧された圧縮空気がコツク24を介して
接続されている。マグネツトピストン22は鉄板
25を吸着しており、ロツド側に挿入されたばね
17でヘツド側に付勢されている。コツク24を
開いてエアタンク22内の圧縮空気がシリンダ2
0のヘツド側の空間に流入し、マグネツトピスト
ン22の吸着力よりも圧縮空気の圧力が大きくな
つた時点で、マグネツトピストン22が鉄板25
から離れ、圧縮空気の膨張力によりマグネツトピ
ストン22が下降し、槌打部26が槌打面Aに槌
打する。槌打した後はばね27に付勢されマグネ
ツトピストン22が上昇し、鉄板25に吸着し保
持される。
FIG. 1 is a configuration diagram showing a conventional example of an air hammer. A magnetic piston 22 provided with a seal 21 is inserted into the cylinder 20 in an airtight manner, and compressed air stored in an air tank 23 is connected from the head side of the cylinder 20 via a cock 24. The magnetic piston 22 attracts an iron plate 25, and is biased toward the head side by a spring 17 inserted into the rod side. When the cock 24 is opened, the compressed air in the air tank 22 flows into the cylinder 2.
When compressed air flows into the space on the head side of the compressed air and the pressure of the compressed air becomes greater than the adsorption force of the magnetic piston 22, the magnetic piston 22 touches the iron plate 25.
The magnetic piston 22 moves downward due to the expansion force of the compressed air, and the hammering portion 26 hits the hammering surface A with a hammer. After hammering, the magnetic piston 22 is raised by the force of the spring 27, and is attracted to and held by the iron plate 25.

粉体ホツパにこのようなエアハンマを取付る場
合にはホツパの形状、板厚、取付位置されに収納
される粉体の性状により最も適当な槌打効果の得
られる衝撃力がある。しかし、前述のようなエア
ハンマでは衝撃力の大きさはマグネツトピストン
22の吸着力によつて定まつてしまい調節ができ
なかつた。このため、一定の衝撃力しか得られず
衝撃力が大き過ぎてホツパを損傷させたり、逆に
衝撃力が小さ過ぎて槌打効果が得られないことも
あつた。また、ピストンにシール機構が設けられ
ているのでシリンダの加工に高精度が要求された
り、マグネツトピストンにも特殊加工を必要とす
るので、製造コストも高くなるという問題があつ
た。
When such an air hammer is attached to a powder hopper, there is an impact force that will produce the most appropriate hammering effect depending on the shape of the hopper, its plate thickness, the attachment position, and the properties of the powder stored therein. However, in the air hammer described above, the magnitude of the impact force is determined by the attraction force of the magnetic piston 22 and cannot be adjusted. For this reason, only a constant impact force can be obtained, and the impact force may be too large and damage the hopper, or conversely, the impact force may be too small and the hammering effect cannot be obtained. In addition, since the piston is provided with a sealing mechanism, high accuracy is required in the machining of the cylinder, and the magnetic piston also requires special machining, resulting in an increase in manufacturing costs.

そこで、本考案の目的は小形かつ廉価であつて
衝撃力を無段階で広範囲に設定できるエアハンマ
を提供することにある。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an air hammer that is small, inexpensive, and allows the impact force to be set over a wide range in a stepless manner.

前記目的を達成するために、本考案によるエア
ハンマは、円筒部とキヤツプ部からなるシリンダ
部材と、前記シリンダ部材内に配置される筒状の
連通パイプ部材と、前記連通パイプ部材の下端側
の開口の外周と前記円筒部の内壁間に取付けられ
た仕切部材と、前記パイプ部材の回りに形成され
る蓄圧室とキヤツプ室を仕切るとともに前記蓄圧
室と前記キヤツプ室を連通する小孔が穿設され前
記連通パイプ部材の上端側の開口を閉鎖する習性
が与えられている弁部材と、ヘツド部と槌打ち部
を形成するロツドを有し前記ヘツド部の頂面が前
記蓄圧室の外側から前記仕切部材に対面しその外
周が前記円筒部の内壁に遊嵌するピストン部材
と、前記ピストン部材を前記仕切部材方向に付勢
する付勢部材と、前記キヤツプ室を大気空間に接
続する排気弁と、前記蓄圧室に圧縮空気を接続す
る弁と、前記排気弁を閉じた状態で前記蓄圧室に
圧縮空気を供給し次いで前記排気弁を開き前記キ
ヤツプ室内の圧縮空気を排気し前記弁部材を移動
させて前記連通パイプ部材の上端側の開口を開
き、前記蓄圧室内の圧縮空気を前記連通パイプ部
材の内部空間を介して前記ピストン部材のヘツド
側に流入させ、前記ピストン部材を瞬時に移動さ
せて槌打ちするように構成されている。
In order to achieve the above object, the air hammer according to the present invention includes a cylinder member consisting of a cylindrical part and a cap part, a cylindrical communicating pipe member disposed within the cylinder member, and an opening on the lower end side of the communicating pipe member. a partition member attached between the outer periphery of the pipe member and the inner wall of the cylindrical portion, and a small hole that partitions the pressure accumulation chamber and the cap chamber formed around the pipe member and communicates the pressure accumulation chamber and the cap chamber. A valve member having a habit of closing an opening on the upper end side of the communicating pipe member, and a rod forming a head portion and a hammering portion, the top surface of the head portion being connected to the partition from the outside of the pressure accumulating chamber. a piston member that faces the member and whose outer periphery fits loosely into the inner wall of the cylindrical portion; a biasing member that biases the piston member toward the partition member; and an exhaust valve that connects the cap chamber to atmospheric space; a valve for connecting compressed air to the pressure accumulation chamber; and supplying compressed air to the pressure accumulation chamber with the exhaust valve closed, and then opening the exhaust valve to exhaust the compressed air in the cap chamber and moving the valve member. The opening on the upper end side of the communicating pipe member is opened, the compressed air in the pressure accumulating chamber is allowed to flow into the head side of the piston member through the internal space of the communicating pipe member, and the piston member is instantly moved to release the hammer. It is configured to hit.

前記構成によれば本考案の目的は完全に達成で
きる。
According to the above structure, the object of the present invention can be completely achieved.

以下、図面等を参照して本考案をさらに詳しく
説明する。
Hereinafter, the present invention will be explained in more detail with reference to the drawings and the like.

第2図は本考案によるエアハンマの実施例を示
す構成図である。円筒1の内部は連通パイプ2を
有する仕切板3で蓄圧室4とピストン室5に仕切
られている。蓄圧室4の側面には供給ノズル6が
設けられており、供給ノズル6には圧力源からの
圧縮空気が調整弁16を介して接続されている。
円筒1のフランジ面には薄い可撓性のダイヤフラ
ムシート8がキヤツプ11のフランジ面とに挟持
されている。ダイヤフラムシート8には蓄圧室4
とキヤツプ室9を連通するための小孔7が設けら
れており、キヤツプ11にはキヤツプ9内の圧縮
空気を大気に接続する排出孔10が設けられてい
る。排出孔10にはパイプ18を介して電磁弁1
7が設けられ電磁弁17を開くことによりキヤツ
プ室9内の圧縮空気を大気に放出している。ピス
トン室5には上下に移動可能なピストン12が挿
入されており、ロツド側には戻し用のばね13が
挿入され、ヘツド側に付勢されている。円筒1の
下方にはボトムプレート14が取付けられてお
り、ボトムプレート14の中央部にはピストン1
2のロツドが移動する孔が穿設され、貫通孔の外
周には取付用の短管15が設けられている。
FIG. 2 is a configuration diagram showing an embodiment of the air hammer according to the present invention. The inside of the cylinder 1 is partitioned into a pressure accumulation chamber 4 and a piston chamber 5 by a partition plate 3 having a communication pipe 2. A supply nozzle 6 is provided on the side surface of the pressure accumulation chamber 4 , and compressed air from a pressure source is connected to the supply nozzle 6 via a regulating valve 16 .
A thin flexible diaphragm sheet 8 is held between the flange surface of the cylinder 1 and the flange surface of the cap 11. The diaphragm sheet 8 has a pressure accumulation chamber 4
A small hole 7 is provided for communicating between the cap chamber 9 and the cap chamber 9, and the cap 11 is provided with an exhaust hole 10 for connecting the compressed air in the cap 9 to the atmosphere. A solenoid valve 1 is connected to the discharge hole 10 via a pipe 18.
7 is provided, and by opening a solenoid valve 17, the compressed air in the cap chamber 9 is released to the atmosphere. A vertically movable piston 12 is inserted into the piston chamber 5, and a return spring 13 is inserted into the rod side and biased toward the head side. A bottom plate 14 is attached below the cylinder 1, and a piston 1 is mounted in the center of the bottom plate 14.
A hole is drilled through which the rod No. 2 moves, and a short pipe 15 for attachment is provided on the outer periphery of the through hole.

次に、本考案のエアハンマの動作を説明する。
調整弁16で圧力源からの圧縮空気を設定したい
槌打力に対応する空気流量に調整したのちに、供
給ノズル6を介して蓄圧室4内に流入する。蓄圧
室4内に圧縮空気が流入すると、ダイヤフラムシ
ート8の小孔7からキヤツプ室9に流れ込み、電
磁弁17が閉じている状態では蓄圧室4とキヤツ
プ室9の圧力は等しくなる。ダイヤフラムシート
8と接している連通パイプ3の上部の開口部はキ
ヤツプ9の空気圧により押圧されているため、蓄
圧室4内の圧縮空気はピストン12側に洩れるこ
となく蓄えられる。この状態では、ピストン12
はばね13により上部位置に保持されている。槌
打操作は電磁弁17を約0.1秒間だけ開くことに
より行う。電磁弁17を開くと、電磁弁17を介
して大気に放出される圧縮空気は、小孔7から供
給される圧縮空気の量よりも!?かに多いために、
キヤツプ室9の空気圧が蓄圧室4の圧力よりも低
くなり、ダイヤフラムシート8は瞬時に上方に押
し上げられる。ダイヤフラムシート8が押し上げ
られると、連通パイプ2の開口部が開かれ、蓄圧
室4の圧縮空気は連通パイプ2を通りピストン室
5へ爆発的に噴射して、ピストン12を急速に下
降させ、ピストン12のロツド部が槌打面Aに達
して衝撃を与える。ピストン室5内の空気は孔1
9を介して大気に放出されるため、ピストン12
に対する抵抗は少ない。槌打操作が終了すると、
ピストン12はばね13に付勢されて上方に移動
し、仕切板3に当接してもとの位置に戻る。
Next, the operation of the air hammer of the present invention will be explained.
After the compressed air from the pressure source is adjusted by the regulating valve 16 to an air flow rate corresponding to the desired hammering force, it flows into the pressure accumulating chamber 4 through the supply nozzle 6. When compressed air flows into the pressure accumulation chamber 4, it flows into the cap chamber 9 through the small hole 7 of the diaphragm sheet 8, and when the electromagnetic valve 17 is closed, the pressures in the pressure accumulation chamber 4 and the cap chamber 9 become equal. Since the upper opening of the communication pipe 3 in contact with the diaphragm sheet 8 is pressed by the air pressure of the cap 9, the compressed air in the pressure storage chamber 4 is stored without leaking to the piston 12 side. In this state, the piston 12
is held in the upper position by a spring 13. The hammering operation is performed by opening the solenoid valve 17 for only about 0.1 seconds. When the solenoid valve 17 is opened, the amount of compressed air released to the atmosphere via the solenoid valve 17 is much larger than the amount of compressed air supplied from the small hole 7.
The air pressure in the cap chamber 9 becomes lower than the pressure in the pressure accumulation chamber 4, and the diaphragm sheet 8 is instantly pushed upward. When the diaphragm sheet 8 is pushed up, the opening of the communication pipe 2 is opened, and the compressed air in the pressure accumulation chamber 4 is explosively injected into the piston chamber 5 through the communication pipe 2, causing the piston 12 to rapidly descend, causing the piston to The rod part 12 reaches the hammer surface A and applies an impact. The air in the piston chamber 5 flows through the hole 1
9 to the atmosphere, the piston 12
There is little resistance to this. When the hammering operation is completed,
The piston 12 is urged by the spring 13 to move upward, comes into contact with the partition plate 3, and returns to its original position.

以上詳しく説明したように本考案によれば、供
給圧力を調整することにより衝撃力を自由に設定
でき、しかもダイヤフラムシートの質量が小さく
瞬時に動作するので、従来装置に比較して同じ圧
縮空気でも大きな衝撃を得ることができるため小
形化が可能になつた。また、連通管も直管で簡単
に製造でき装置が簡易になつたので、製造コスト
を軽減できる等の効果がある。
As explained in detail above, according to the present invention, the impact force can be set freely by adjusting the supply pressure, and the mass of the diaphragm sheet is small and it operates instantly, so compared to conventional devices, even the same compressed air can be used. The ability to generate large impacts has made it possible to downsize. In addition, the communicating pipe can be easily manufactured as a straight pipe, and the apparatus is simplified, which has the effect of reducing manufacturing costs.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はエアハンマの従来例を示す構成図、第
2図は本考案によるエアハンマの実施例を示す構
成図である。 1……円筒、2……連通パイプ、3……仕切
板、4……蓄圧室、5……ピストン室、6……供
給ノズル、7……小孔、8……ダイヤフラムシー
ト、9……キヤツプ室、10……排出孔、11…
…キヤツプ、12……ピストン、13……戻しば
ね、14……ボトムプレート、15……短筒、1
6……調整弁、17……電磁弁、18……パイ
プ、19……排気孔、20……シリンダ、21…
…シール、22……マグネツトピストン、23…
…空気タンク、24……バルブ、25……鉄板、
26……ロツド、27……戻しばね。
FIG. 1 is a block diagram showing a conventional example of an air hammer, and FIG. 2 is a block diagram showing an embodiment of the air hammer according to the present invention. 1... Cylinder, 2... Communication pipe, 3... Partition plate, 4... Pressure accumulation chamber, 5... Piston chamber, 6... Supply nozzle, 7... Small hole, 8... Diaphragm sheet, 9... Cap chamber, 10... Discharge hole, 11...
... Cap, 12 ... Piston, 13 ... Return spring, 14 ... Bottom plate, 15 ... Short tube, 1
6...Adjustment valve, 17...Solenoid valve, 18...Pipe, 19...Exhaust hole, 20...Cylinder, 21...
...Seal, 22...Magnetic piston, 23...
...air tank, 24...valve, 25...iron plate,
26...rod, 27...return spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 円筒部とキヤツプ部からなるシリンダ部材と、
前記シリンダ部材内に配置される筒状の連通パイ
プ部材と、前記連通パイプ部材の下端側の開口の
外周と前記円筒部の内壁間に取付けられた仕切部
材と、前記パイプ部材の回りに形成される蓄圧室
とキヤツプ室を仕切るとともに前記蓄圧室と前記
キヤツプ室を連通する小孔が穿設され前記連通パ
イプ部材の上端側の開口を閉鎖する習性が与えら
れている弁部材と、ヘツド部と槌打ち部を形成す
るロツドを有し前記ヘツド部の頂面が前記蓄圧室
の外側から前記仕切部材に対面しその外周が前記
円筒部の内壁に遊嵌するピストン部材と、前記ピ
ストン部材を前記仕切部材方向に付勢する付勢部
材と、前記キヤツプ室を大気空間に接続する排気
弁と、前記蓄圧室に圧縮空気を接続する弁と、前
記排気弁を閉じた状態で前記蓄圧室に圧縮空気を
供給し次いで前記排気弁を開き前記キヤツプ室内
の圧縮空気を排気し前記弁部材を移動させて前記
連通パイプ部材の上端側の開口を開き、前記蓄圧
室内の圧縮空気を前記連通パイプ部材の内部空間
を介して前記ピストン部材のヘツド側に流入さ
せ、前記ピストン部材を瞬時に移動させて槌打ち
するように構成したエアハンマ。
A cylinder member consisting of a cylindrical part and a cap part,
a cylindrical communication pipe member disposed within the cylinder member; a partition member attached between the outer periphery of the opening on the lower end side of the communication pipe member and the inner wall of the cylindrical portion; and a partition member formed around the pipe member. a valve member having a small hole for partitioning a pressure accumulating chamber and a cap chamber and communicating the pressure accumulating chamber and the cap chamber, and having a habit of closing an opening on an upper end side of the communicating pipe member; a piston member having a rod forming a hammering portion, the top surface of the head portion facing the partition member from the outside of the pressure accumulating chamber, and the outer periphery of the piston member loosely fitting into the inner wall of the cylindrical portion; a biasing member that biases toward the partition member; an exhaust valve that connects the cap chamber to the atmospheric space; a valve that connects compressed air to the pressure accumulation chamber; After supplying air, the exhaust valve is opened to exhaust the compressed air in the cap chamber, the valve member is moved to open the opening at the upper end of the communication pipe member, and the compressed air in the pressure accumulator is discharged from the communication pipe member. An air hammer configured to allow air to flow into the head side of the piston member through an internal space to instantly move and hammer the piston member.
JP17733082U 1982-11-24 1982-11-24 air hammer Granted JPS5982681U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17733082U JPS5982681U (en) 1982-11-24 1982-11-24 air hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17733082U JPS5982681U (en) 1982-11-24 1982-11-24 air hammer

Publications (2)

Publication Number Publication Date
JPS5982681U JPS5982681U (en) 1984-06-04
JPH0524467Y2 true JPH0524467Y2 (en) 1993-06-22

Family

ID=30385282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17733082U Granted JPS5982681U (en) 1982-11-24 1982-11-24 air hammer

Country Status (1)

Country Link
JP (1) JPS5982681U (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0630735B2 (en) * 1985-05-24 1994-04-27 日本ニユ−マチツク工業株式会社 Air-vibrator
KR200443555Y1 (en) * 2008-06-02 2009-02-24 김경대 The air knocker
JP5112272B2 (en) * 2008-12-12 2013-01-09 日本ニューマチック工業株式会社 Air hammer device
JP6826373B2 (en) * 2016-03-02 2021-02-03 古河機械金属株式会社 Inspection equipment
JP7411995B2 (en) * 2020-03-24 2024-01-12 アピュアン株式会社 hammer striking device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525152A (en) * 1975-07-01 1977-01-14 Nisshin Flour Milling Co Ltd Method and apparatus to break bridge of powder
JPS5634638U (en) * 1979-08-22 1981-04-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525152A (en) * 1975-07-01 1977-01-14 Nisshin Flour Milling Co Ltd Method and apparatus to break bridge of powder
JPS5634638U (en) * 1979-08-22 1981-04-04

Also Published As

Publication number Publication date
JPS5982681U (en) 1984-06-04

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