DE486097C - Travel and safety brakes, especially for conveyors - Google Patents
Travel and safety brakes, especially for conveyorsInfo
- Publication number
- DE486097C DE486097C DES87554D DES0087554D DE486097C DE 486097 C DE486097 C DE 486097C DE S87554 D DES87554 D DE S87554D DE S0087554 D DES0087554 D DE S0087554D DE 486097 C DE486097 C DE 486097C
- Authority
- DE
- Germany
- Prior art keywords
- brake
- lever
- differential
- travel
- brakes
- 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
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
- B66D2700/035—Fluid operated braking devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
Fahr- und Sicherheitsbremse, insbesondere für Fördermaschinen Fahr- und Sicherheitsbremsen, insbeson-Jere für Fördermaschinen, wurden bisher fast immer so ausgeführt, daß 'am Haupthebel des Bremsbackengestänges sowohl die Fahrbremse wie auch die Sicherheitsbremse (Fal1-gewichtsbremse) angreifen. Damit nun jede Bremse unabhängig von der anderen wirken kann, müssen in den Angriffsgestängen Langlöcher vorgesehen sein.Travel and safety brakes, especially for hoisting machines and safety brakes, in particular for hoisting machines, have almost always been used designed so that 'both the driving brake on the main lever of the brake shoe linkage as well as attack the safety brake (Fal1 weight brake). So now every brake can act independently of the other, must have elongated holes in the attack rods be provided.
Die gebräuchliche Anordnung hat erhebliche Nachteile. Wenn beispielsweise die Fahrbremse angezogen ist, und die Sicherheitsbremse wird aus irgendwelchen Gründen am Fahrtende unverzögert ausgelöst, so schlägt diese Bremse mit großer Gewalt nach Rücklegung des Leerweges im Langloch auf das Bremsgestänge, wodurch leicht unzulässig hohe Beanspruchungen auftreten. Ferner hat die alte Anordnung den Nachteil, daß sich die beiden Bremskräfte in ihrer Wirkung summieren. Da jede Kraft für sich für den vollen Bremsdruck bemessen sein muß, so wird die Maschine beim Auflegen beider Bremsen zu stark verzögert.The conventional arrangement has significant disadvantages. For example, if the travel brake is on and the safety brake is on for some reason Triggered immediately at the end of the journey, this brake strikes with great force Relocation of the free travel in the elongated hole on the brake linkage, which is slightly impermissible high stresses occur. Furthermore, the old arrangement has the disadvantage that the two braking forces add up in their effect. As every power for itself for the full brake pressure must be measured, so the machine is when both Braking too much delayed.
Zur Behebung dieser Nachteile wurde bereits die Verwendung eines Differentialhebels vorgeschlagen, an dem beide Bremsen angreifen. Bei den bisherigen Ausführungen dieser Differentialbremsen wurde der Differentialhebel mit der Fahrt- und Sicherheitsbremse zu einer geschlossenen Einrichtung zusammengebaut; der Differentialhebel war dabei als einarmiger Hebel ausgeführt. Sollten vorhandene Bremsen der alten Bauart mit einer Differentialbremse ausgerüstet werden, so mußten die bisherigen Einrichtungen entfernt werden.The use of a differential lever has already been used to remedy these disadvantages suggested on which both brakes attack. In the previous versions of this Differential brakes became the differential lever with the travel and safety brake assembled into a closed device; the differential lever was there designed as a one-armed lever. Should existing brakes of the old type with be equipped with a differential brake, the previous facilities had to be removed.
Die Erfindung bezweckt nun den Umbau alter Bremsen in Differentialbremsen unter Verwendung der bereits vorhandenen Bremseinrichtungen mit möglichst geringen .Änderungen und Kosten. Zu diesem Zweck wird der Differentialhebel als zweiarmiger Hebel ausgebildet, an dessen beiden Schenkeln die vorhandene Fahrbremse und die vorhandene Sicherheitsbremse angreifen, während der Drehpunkt mit dem Kraftangriffspunkt am Haupthebel des Bremsbackengestänges verbunden wird. Es erscheint nach der Erfindung dabei besonders zweckmäßig; den zweiarmigen Differentialhebel unmittelbar am Haupthebel des Bremsbackengestänges anzulenken.The invention now aims to convert old brakes into differential brakes using the existing braking devices with the lowest possible Changes and costs. For this purpose, the differential lever is called two-armed Lever formed on the two legs of the existing brake and the Attack existing safety brake, while the pivot point with the force application point is connected to the main lever of the brake shoe linkage. It appears according to the invention particularly useful; the two-armed differential lever directly on the main lever of the brake shoe linkage.
Die Abbildung gibt ein Ausführungsbeispiel für die Erfindung.The figure shows an exemplary embodiment for the invention.
Am bekannten Haupthebel i des' Bremsbackengestänges einer Bremse a ist im Punkt 3 ein zweiarmiger Differentialhebel q. angelenkt, an dessen einem Arm im Punkt 5 die Fahrbremse 6 und an dessen anderem Arm im Punkt 7 die Sicherheitsbremse 8 angreifen. Die bisherigen Bremseinrichtungen können fast unverändert beibehalten werden. Es ist nur erforderlich, am Haupthebel des Bremsbackengestänges einen Differentialhebel anzulenken, mit dem die Kraftangriffsgestänge ohne Langloch verbunden werden.On the known main lever i of the 'brake shoe linkage of a brake a is at point 3 a two-armed differential lever q. hinged on one arm in point 5 the driving brake 6 and on its other arm in point 7 the safety brake 8 attack. The previous braking devices can be kept almost unchanged will. It is only necessary to have a differential lever on the main lever of the brake shoe linkage to be linked, with which the force application rods are connected without an elongated hole.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES87554D DE486097C (en) | Travel and safety brakes, especially for conveyors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES87554D DE486097C (en) | Travel and safety brakes, especially for conveyors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE486097C true DE486097C (en) | 1929-11-12 |
Family
ID=7513850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES87554D Expired DE486097C (en) | Travel and safety brakes, especially for conveyors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE486097C (en) |
-
0
- DE DES87554D patent/DE486097C/en not_active Expired
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