DE283695C - - Google Patents
Info
- Publication number
- DE283695C DE283695C DENDAT283695D DE283695DA DE283695C DE 283695 C DE283695 C DE 283695C DE NDAT283695 D DENDAT283695 D DE NDAT283695D DE 283695D A DE283695D A DE 283695DA DE 283695 C DE283695 C DE 283695C
- Authority
- DE
- Germany
- Prior art keywords
- lubricant
- motor shaft
- hammer
- motor
- impact device
- 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.)
- Active
Links
- 239000000314 lubricant Substances 0.000 claims description 8
- 230000001808 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei Schlaggeräten mit schraubenförmiger Hubkurve zum Anheben des Schlagstückes hat man zwischen dem Motor und dem achsial hin und her gehenden Schlagstück eine achsial unverschiebbare Welle eingebaut. Die Kupplung, welche diese Welle mit dem Schlagstück verband, gestattete diesem die notwendige achsiale Verschiebung. Man hat diese Zwischenwelle vermieden, indem man die MotorwelleFor impact devices with a helical lifting curve for lifting the impact piece there is an axially between the motor and the axially reciprocating hammer built-in immovable shaft. The coupling that connects this shaft to the hammer connected, allowed this the necessary axial displacement. You have this intermediate wave avoided by moving the motor shaft
ίο mit dem auch gegen achsiale Verschiebung auf ihr befestigten Anker als Schlagstück benutzte. ίο with the also against axial displacement used anchor attached to it as a hammer.
Nach der Erfindung werden gewisse praktische Mängel beider Bauarten vermieden, indem die Motorwelle selbst als der achsial feststehende Teil dör Kupplung ausgebildet wird, die das Schlagstück drehend mitnimmt, während sich ihre beiden Teile gegenseitig achsial . verschieben.According to the invention, certain practical shortcomings of both types are avoided by the motor shaft itself is designed as the axially fixed part of the coupling, which rotates the hammer while its two parts are mutually axially . move.
Die Zuführung des Schmiermittels zu den gleitenden Flächen dieser Kupplung erfolgt dabei vorteilhaft durch die hohle Motorwelle. Zu dem Zweck kann diese als ein gegen die Außenluft abgesperrter Behälter für das Schmiermittel ausgebildet werden.The lubricant is supplied to the sliding surfaces of this coupling advantageous because of the hollow motor shaft. For this purpose, it can be used as a container for the lubricant that is shut off from the outside air be formed.
Die beiliegende Zeichnung stellt den Längsschnitt einer beispielsweisen Ausführung dar. Das Schlagstück α hat ein zu seiner Drehung dienendes Vierkant b o. dgl. Die Welle c des Elektromotors d, die als Behälter für ein Schmiermittel dient, trägt an ihrem Vorderende das zu b passende Hohlvierkant und enthält eine Bohrung e. Nach Herausnahme der hinteren Verschlußplatte f des Lagerkörpers g kann die Motorwelle c mit dem Schmierstoff gefüllt werden. Die starke achsiale Bewegung des Vierkantes b sichert eine hinreichende Verteilung des Schmiermittels über die aufeinander gleitenden Kupplungsflächen.The accompanying drawing shows the longitudinal section of an exemplary embodiment. The hammer α has a square b or the like serving for its rotation. The shaft c of the electric motor d, which serves as a container for a lubricant, carries the hollow square that matches b at its front end and contains a hole e. After removing the rear closure plate f of the bearing body g , the motor shaft c can be filled with the lubricant. The strong axial movement of the square b ensures adequate distribution of the lubricant over the coupling surfaces that slide on one another.
Die Kupplung c, b kann so ausgebildet werden, daß 0 das Vollvierkant und b das Hohlvierkant o. dgl. bildet. Auch hierbei kann die Welle c als Schmiermittelbehälter dienen.The coupling c, b can be designed so that 0 forms the full square and b the hollow square or the like. Here, too, the shaft c can serve as a lubricant container.
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE283695C true DE283695C (en) |
Family
ID=539250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT283695D Active DE283695C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE283695C (en) |
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0
- DE DENDAT283695D patent/DE283695C/de active Active
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