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DE843196C - A band brake that can be released by a pressure medium against the brake closing force, especially for lifts to deep drilling rigs - Google Patents

A band brake that can be released by a pressure medium against the brake closing force, especially for lifts to deep drilling rigs

Info

Publication number
DE843196C
DE843196C DEE3750A DEE0003750A DE843196C DE 843196 C DE843196 C DE 843196C DE E3750 A DEE3750 A DE E3750A DE E0003750 A DEE0003750 A DE E0003750A DE 843196 C DE843196 C DE 843196C
Authority
DE
Germany
Prior art keywords
brake
pressure medium
lifts
closing force
released
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
Application number
DEE3750A
Other languages
German (de)
Inventor
Wilhelm Leipold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to DEE3750A priority Critical patent/DE843196C/en
Application granted granted Critical
Publication of DE843196C publication Critical patent/DE843196C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F16D49/08—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360 degrees
    • F16D49/12—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360 degrees fluid actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

Die Erfindung bezieht sich auf eine durch ein Druckmittel entgegen der Bremsschließkraft lösbare Bandbremse, insbesondere für Hebewerke zu Tiefbohranlagen, und bezweckt die Schaffung einer Sicherheitsvorrichtung, derart, daß die Bremse im Falle des Versagens der die Bremslüftung normalerweise bewirkenden Druckmittelzufuhr zwar geschlossen bleibt, aber aus dieser geschlossenen Stellung jederzeit von Hand lösbar ist.The invention relates to an opposed by a pressure medium the brake closing force releasable band brake, especially for hoists to deep drilling rigs, and aims to provide a safety device, such that the brake in the event of failure of the pressure medium supply normally causing the brake release remains closed, but from this closed position at any time by hand is solvable.

Insbesondere in dem verhältnismäßig rauhen Tiefbohrbetrieb, der eine stets gleichbleibende Druckmittelzufuhr nicht in jedem Falle gewährleisten kann, ist die Anordnung einer Sicherheitsvorrichtung mit der vorstehend gekennzeichneten Wirkungsweise von erheblichem Vorteil. Würde eine solche Vorrichtung fehlen, so könnte je nach Ausgestaltung der verwendeten Bremse entweder der Fall eintreten, daß die am Hebewerksseil angreifende Last nicht abzubremsen oder aber die beim Versagen der Druckmittelzufuhr selbsttätig schließende Bremse nicht wieder zu lüften wäre. Die Erfindung macht sich zur Aufgabe, 'diesen letztgenannten Fall, der erhebliche Betriebsstörungen nach sich ziehen würde, mit Sicherheit zu vermeiden. Sie löst diese Aufgabe dadurch, daß die die Bremse normalerweise schließende Kraft auf einen gleichzeitig sowohl mit der Druckmittelsteuerung als auch mit einer zusätzlichen Handsteuerung verbundenen, am Bremsband angreifenden Hebel einwirkt.Especially in the relatively rough deep drilling operation, the one cannot guarantee constant supply of pressure medium in every case, is the arrangement of a safety device marked with the above Effectiveness of considerable advantage. If such a device were missing, so Depending on the design of the brake used, it could either be the case that that the load acting on the hoist rope cannot be braked or that in the event of failure the pressure medium supply automatically closing brake would not be released again. The invention has as its object, 'this last-mentioned case, the significant Would lead to operational disruptions, to be avoided with certainty. She solves this task in that the brake normally closing force on one at the same time both with the pressure medium control and with an additional one Hand control connected, acting on the brake band lever.

Hierdurch wird gleichzeitig noch der Vorteil erzielt; daß eine äußerst feinfühlige und leicht zu bedienende Handbetätigung der Bremse stets dann ermöglicht wird, wenn die Druckmittelsteuerung konstant unter einer solchen Einwirkung des Druckmittels verbleibt, daß ein erheblicher Teil der Bremsschließkraft von vornherein aufgehoben wird.In this way, the advantage is achieved at the same time; that one extremely sensitive and easy-to-use manual actuation of the brake is then always possible is when the pressure medium control constant under such an action of the Pressure medium remains that a considerable part of the brake closing force from the start will be annulled.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.An exemplary embodiment of the invention is shown in the drawing.

Am Bremsband i einer Bremse greift ein um einen Punkt 2 schwenkbarer Hebel 3 an, der mit einem die Bremse normalerweise geschlossen haltenden Kraftspeicher, etwa einer Feder 4, verbunden ist und auf den ein in einem Zylinder 5 gleitender, von einem Druckmittel beaufschlagbarer Kolben 6 derart einwirken kann, daß die Bremse bei auf den Kolben 6 wirkender Druckmittelzufuhr entgegen der Kraft der Feder 4 lösbar ist. Der Hebel 2 ist gleichzeitig mit einer beispielsweise durch Hebel ? zu betätigenden Handsteuerung 8 verbunden.A pivotable about a point 2 engages on the brake band i of a brake Lever 3, which is connected to an energy storage device that normally keeps the brake closed, about a spring 4, and on which a cylinder 5 sliding, can act on piston 6, which can be acted upon by a pressure medium, in such a way that the brake with pressure medium supply acting on the piston 6 against the force of the spring 4 is solvable. The lever 2 is simultaneously with a lever, for example? to be operated hand control 8 connected.

Sobald die Druckmittelzufuhr zum Kolben 6 ausfällt, die Bremse durch Federwirkung 4 also geschlossen bleibt, wird es möglich, jederzeit ein Lösen derselben durch Betätigen des Handhebels 7 in Pfeilrichtung zu ermöglichen.As soon as the pressure medium supply to the piston 6 fails, the brake applies Spring action 4 remains closed, it is possible to release the same at any time by operating the hand lever 7 in the direction of the arrow.

Claims (1)

PATENTANSPRUCH: Durch ein Druckmittel entgegen der Bremsschließkraft lösbare Bandbremse, insbesondere für Hebewerke zu Tiefbohranlagen, dadurch gekennzeichnet, - daß die die Bremse normalerweise schließende Kraft (4) auf einen gleichzeitig sowohl mit der Druckmittelsteuerung (5, 6) als auch mit einer zusätzlichen Handsteuerung (7, 8) verbundenen, am Bremsband (i) angreifenden Hebel (3) einwirkt. PATENT CLAIM: A band brake that can be released by a pressure medium against the brake closing force, in particular for lifts for deep drilling rigs, characterized in that the force (4) that normally closes the brake acts simultaneously with both the pressure medium control (5, 6) and an additional manual control ( 7, 8) connected to the brake band (i) engaging lever (3) acts.
DEE3750A 1951-05-20 1951-05-20 A band brake that can be released by a pressure medium against the brake closing force, especially for lifts to deep drilling rigs Expired DE843196C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE3750A DE843196C (en) 1951-05-20 1951-05-20 A band brake that can be released by a pressure medium against the brake closing force, especially for lifts to deep drilling rigs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE3750A DE843196C (en) 1951-05-20 1951-05-20 A band brake that can be released by a pressure medium against the brake closing force, especially for lifts to deep drilling rigs

Publications (1)

Publication Number Publication Date
DE843196C true DE843196C (en) 1952-07-07

Family

ID=7065986

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE3750A Expired DE843196C (en) 1951-05-20 1951-05-20 A band brake that can be released by a pressure medium against the brake closing force, especially for lifts to deep drilling rigs

Country Status (1)

Country Link
DE (1) DE843196C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019093972A1 (en) * 2017-11-09 2019-05-16 Tajfun Planina Proizvodnja Strojev D.O.O. Forestry winch belt brake with regulating mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019093972A1 (en) * 2017-11-09 2019-05-16 Tajfun Planina Proizvodnja Strojev D.O.O. Forestry winch belt brake with regulating mechanism

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