FOUR BRAKES SYSTEM FOR THE DOORS OF EXCAVATOR BUCKETS

• US 20170009423A1
• Filed: 03/02/2016
• Published: 01/12/2017
• Est. Priority Date: 07/07/2015
• Status: Active Grant

• Current Assignee: Minetec SA
• Original Assignee: Minetec SA
• Inventors: CHOCOBAR CHVEZ, Rubn Felipe, ZAMORANO JONES, Claudio, VERA TORRES, Bernardo
• Granted Patent: US 9,988,785 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E02F 3/4075 Dump doors; Control thereof
• CPC Class Codes: E02F 9/2203 Arrangements for controlling the attitude of actuators, e.g. speed, floating function
• CPC Class Codes: F16F 13/00 Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs F16F5/00, F16F6/00, F16F9/003 take precedence

Abstract

A brake system for the doors of excavator buckets which increases the braking force of said doors, allowing the use of heavier caps with more shield, increasing the durability and reliability, cushioning the blows of the door against the frame of the bucket and decreasing the likelihood that the whole system is deregulated at the same time, since they suffer an outdated deregulation in time; where the brake system is comprised of a first and a second pair of brakes, being each pair conformed by two identical brakes either hydraulic or mechanical, aligned with each other and forming either a) a first arrangement in which the first and second pairs of brakes have the same range, or exclusionary the first and second pairs of brakes have different range, where the first pair of brakes is misaligned with respect to the second pair of brakes; or b) a second arrangement in which the first and second pairs of brakes have the same range, or exclusionary the first and second pairs of brakes have different range, where the first pair of brakes is aligned with respect to the second pair of brakes. Brakes are linked by a linking arm which is pivotally coupled to the retarder in one of its ends and is also pivotally coupled to the door in the other end, being the brakes attached to the structure of the bucket.

Claims

1. A brake system for the doors of an excavator bucket that increases the braking force of said door, allowing a use of heavier covers with more shielding, increasing the durability and reliability, by buffering the hits of the door against the bucket'"'"'s frame and therefore decreasing the probability of a system complete deregulation, because they suffer a mismatched deregulation, at different times, WHEREIN:

the brake system comprises a first and a second pair of brakes, in which each pair of brakes is composed by two substantially identical brakes that can be hydraulic or mechanical, aligned between them that are composed by either;

a first disposition in which the first and second pairs of brakes have the same trajectory between them, or as excluding the first and second pair of brakes have a different trajectory between them wherein the first pair of brakes is non-aligned with respect to the second pair of brakes;

or

a second disposition in which the first and second pairs of brakes have the same trajectory between them, or as excluding the first and second pair of brakes have a different trajectory between them wherein the first pair of brakes is aligned with respect to the second pair of brakes, and WHEREIN;

The brakes are connected by a linking arm that in one of its ends is pivotally connected to the retarding device and in its other end is also pivotally connected to the door;

or

The brakes are connected to the structure of the door.

2. The braking system for doors according to claim 1 WHEREIN the first pair of brakes is connected by the linking arm to an extension arm of the door.

3. The braking system for doors according to claim 1 WHEREIN the second pairs of brakes are connected by the linking arm to an upper part of the door.