DE2511042C2 - Hammer or rotary hammer with oil reservoir and metering device - Google Patents
Hammer or rotary hammer with oil reservoir and metering deviceInfo
- Publication number
- DE2511042C2 DE2511042C2 DE19752511042 DE2511042A DE2511042C2 DE 2511042 C2 DE2511042 C2 DE 2511042C2 DE 19752511042 DE19752511042 DE 19752511042 DE 2511042 A DE2511042 A DE 2511042A DE 2511042 C2 DE2511042 C2 DE 2511042C2
- Authority
- DE
- Germany
- Prior art keywords
- hammer
- oil
- housing
- cylinder
- hammer according
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/26—Lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
wältigen Sechskantabschnitt 18' von einem Werkzeuglagerring 14 aufgenommen. Der vom Gehäuse 10 umschlossene Raum mit seinen schmierbedürftigen Teilen und Bereichen wird von einem Ölvorratsraum 97 mit Deckel 85 aus über eine Ölleitung 86,88,96 versorgt, in welche eine Dosiervorrichtung 87,89 eingelugt istoverwhelming hexagonal section 18 'of a tool bearing ring 14 added. The space enclosed by the housing 10 with its parts requiring lubrication and areas is supplied from an oil reservoir 97 with a cover 85 via an oil line 86,88,96, in which a metering device 87,89 is inserted
Die Ölleitung mündet über eine von einer dichtenden Manschette 91 begrenzten Radialbohrung 92 in das Luftkissen 72.The oil line opens into the through a radial bore 92 delimited by a sealing sleeve 91 Air cushion 72.
Die Erfahrung hat gezeigt, daß in einem solchen Luftkissen in aller Regel an bestimmten Stellen die Druck-ninima die Druckmaxima überwiegen, so daß, statistisch gesehen, an der öffnung 92 über einen bestimmten Zeitraum hinweg eine Sogwirkung zu verzeichnen ist Aus diesem Grunde wandert das Öl, sofern die ölleitung frei ist, automatisch in das Luftkissen, wo es unter dem Einfluß der starken Druckschwankungen vernebelt wird. Aus dem Luftkissenraum gelangt der ölnebel durch radiale Lüftungsbohrungen, aber auch in Spuren über die Mantelfläche des Schlagkolbens 12 und des Antriebskolbens des Kurbeltriebes in den übiigen Raum des Zylinders und in den Gehäuseraum, so daß alle schmierbedürftigen Teile des Hammers versorgt sind.Experience has shown that in such an air cushion, as a rule, the pressure minima at certain points the pressure maxima predominate, so that, from a statistical point of view, at the opening 92 over a certain value For this reason, the oil migrates to the extent that the oil pipe is drawn is free, automatically into the air cushion, where it nebulises under the influence of the strong pressure fluctuations will. The oil mist comes from the air cushion space through radial ventilation holes, but also in traces About the outer surface of the percussion piston 12 and the drive piston of the crank mechanism in the usual space of the cylinder and into the housing space, so that all parts of the hammer that require lubrication are supplied.
Die Dosiervorrichtung ist durch ein Verschlußventil mit federbelastetem Ventilkörper 89 gebildet, der mit dem Ventilsitz 87 zusammenarbeitet Die Vorspannung der am Ventilkörper anliegenden Feder 90 ist durch die axiale Bewegungskomponente eines Schraubenbolzens 93 regulierbar. Der Schraubenbolzen steht mit dem Innengewinde eines Gehäuseteils 10" im Abschnitt 10' im Eingriff. Die Stirnkante des Schraubenbolzens bildet das Widerlager für die Schraubenfeder 90. Der als Bedienungsorgan 93' dienende Kopf des Schraubenbolzens liegt an einem am Gehäuseteil 10' widergelagerten elastischen Ring 94 an. Dieser elastische Ring stellt gleichzeitig daü Dichtelement 94 dar, das einen Durchtritt des Öls aus dem Gehäuseraum verhindert Der elastische Ring übt gleichzeitig eine Bremswirkung beim Drehen des Kopfes 93' zur Regulierung der Vorspannung der Feder 90 aus, und arretiert den Schraubenbolzen 93 in seiner jeweiligen Position durch erhöhte Reibungshaftung. The metering device is formed by a closure valve with a spring-loaded valve body 89, which with the valve seat 87 cooperates. The bias of the spring 90 resting on the valve body is achieved by the axial component of movement of a screw bolt 93 adjustable. The screw bolt stands with the internal thread of a housing part 10 "in the section 10 '. The end edge of the screw bolt forms the Abutment for the helical spring 90. The head of the screw bolt serving as an operating element 93 ' rests against an elastic ring 94 abutted on the housing part 10 '. This elastic ring represents at the same time the sealing element 94, which prevents the oil from passing through the housing space. The elastic Ring simultaneously exerts a braking effect when turning the head 93 'to regulate the preload of the Spring 90 off, and locks the screw bolt 93 in its respective position by increased frictional grip.
Die axiale Bewegung des Bedienungsorgans 93' ist in beiden Richtungen dadurch begrenzt, daß es in einer Einformung 95 des Gehäuses angeordnet ist und am elastischen Ring 94 anliegtThe axial movement of the operating member 93 'is limited in both directions by the fact that it is in one Formation 95 of the housing is arranged and rests on the elastic ring 94
Anstatt in den Zylinderraum kann die Ölleitung auch in den Gehäuseraum, z. B. in dem den Kurbeltrieb enthaltenden Bereich münden. In diesem Falle erfolgt der Öltransport durch die Erschütterungen des Hammers und/oder durch die Druckschwankungen im Gehäuseraum, wo sie allerdings wesentlich geringer sind als im Luftkissen.Instead of going into the cylinder space, the oil line can also go into the housing space, e.g. B. open in the area containing the crank mechanism. In this case, the oil is transported through the vibrations of the hammer and / or through the pressure fluctuations in the housing space, where they are, however, much lower than in the air cushion.
Das Dosierorgan kann auch ein durch den Schraubenbolzen 93 zusammenpreßbarer poröser Körper mit Kapillarwirkung sein.The metering element can also be a porous body with capillary action which can be compressed by the screw bolt 93 be.
Ebenso möglich ist es, den Querschnitt der Ölleitung durch das Bedienungsorgan zu verändern und dadurch den Ölnachschub zu steuern.It is also possible to change the cross section of the oil line by means of the operating element and thereby to control the oil supply.
Hierzu J Blatt ZeichnungenFor this purpose J sheet drawings
Claims (12)
Der Bedienende, der den Ölverbrauch ohnehin zu kontrollieren hat, kann nunmehr den Ölnachschub jeweils mit wenigen Handgriffen den Arbeitsbedingungen, d. h. dem Ölverbrauch anpassen.According to the invention, the disadvantages shown are eliminated in a surprisingly simple manner in that, in a hammer of the type mentioned at the beginning, the metering device can be manually controlled with the help of an operating element arranged from the outside on the housing of the hammer Oil consumption are set.
The operator, who has to control the oil consumption anyway, can now adjust the oil supply to the working conditions, ie the oil consumption, in just a few simple steps.
Nachstehend wird die Erfindung anhand der einzigen Figur erläutertFurther refinements of the invention emerge from the subclaims.
The invention is explained below with reference to the single figure
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752511042 DE2511042C2 (en) | 1975-03-13 | 1975-03-13 | Hammer or rotary hammer with oil reservoir and metering device |
CH208476A CH608982A5 (en) | 1975-03-13 | 1976-02-20 | Portable hammer driven by electric motor and having a lubricating device |
NL7602455A NL7602455A (en) | 1975-03-13 | 1976-03-09 | ELECTRIC MOTOR-DRIVEN HAMMER WITH LUBRICATION DEVICE. |
GB1006376A GB1535801A (en) | 1975-03-13 | 1976-03-12 | Portable electrically driven hammer |
FR7607205A FR2303642A1 (en) | 1975-03-13 | 1976-03-12 | HAMMER DRIVEN BY ELECTRIC MOTOR WITH LUBRICATION DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752511042 DE2511042C2 (en) | 1975-03-13 | 1975-03-13 | Hammer or rotary hammer with oil reservoir and metering device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2511042A1 DE2511042A1 (en) | 1976-09-23 |
DE2511042C2 true DE2511042C2 (en) | 1982-12-30 |
Family
ID=5941314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752511042 Expired DE2511042C2 (en) | 1975-03-13 | 1975-03-13 | Hammer or rotary hammer with oil reservoir and metering device |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH608982A5 (en) |
DE (1) | DE2511042C2 (en) |
FR (1) | FR2303642A1 (en) |
GB (1) | GB1535801A (en) |
NL (1) | NL7602455A (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1343104A (en) * | 1919-09-19 | 1920-06-08 | Autorino John | Lubricating device for riveting-hammers |
DE712665C (en) * | 1938-08-14 | 1941-10-23 | Karl Koch | Lubricating device for compressed air tools |
US2640561A (en) * | 1951-01-30 | 1953-06-02 | Mcgushin Joseph Francis | Pneumatic tool lubricator |
US3241635A (en) * | 1963-11-05 | 1966-03-22 | Jerry P Malec | Adjustable automatic oiler for air conduits |
FR1479624A (en) * | 1966-04-29 | 1967-05-05 | Duss Friedrich | Lubricating device for a hammer drill for working stone |
-
1975
- 1975-03-13 DE DE19752511042 patent/DE2511042C2/en not_active Expired
-
1976
- 1976-02-20 CH CH208476A patent/CH608982A5/en not_active IP Right Cessation
- 1976-03-09 NL NL7602455A patent/NL7602455A/en not_active Application Discontinuation
- 1976-03-12 FR FR7607205A patent/FR2303642A1/en active Granted
- 1976-03-12 GB GB1006376A patent/GB1535801A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1535801A (en) | 1978-12-13 |
DE2511042A1 (en) | 1976-09-23 |
CH608982A5 (en) | 1979-02-15 |
FR2303642A1 (en) | 1976-10-08 |
FR2303642B1 (en) | 1982-10-15 |
NL7602455A (en) | 1976-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8339 | Ceased/non-payment of the annual fee |