Abstract: A test bench to evaluate the operation of a brake or shock absorber for bucket doors of excavators or electric shovels that allows simulating real operating conditions of the bucket doors, which includes a brake support that allows installing and fixing the brake to be evaluated, said brake comprising, a body with an axis that is connected to the end of an arm in a pivotal manner and its other end is used for connection with the bucket door; a pendulum to simulate the loads received by the brake due to the opening and/or closing movement of the bucket door, comprising a pendulum arm comprising an upper end with a lateral edge comprising at least one opening to be fixedly connected to the free end of the brake arm, an inner side pivotally connected to a pendulum support, arranged in front of the brake support, allowing rotational movement of the pendulum, and an outer side comprising a plurality of openings defining a predefined inclination; and a lower end comprising a known mass; a locking device on one side

Abstract: A set of monitoring and prevention of wear of bushings and pins in connections in buckets of electric shovels is disclosed that has the objective of monitoring the condition of bushings to inform the moment of replacement of the component, in addition, to reduce wear by which is subjected to extend its useful life. The assembly comprises devices for locking pins in the bucket connections of electric excavator shovels, such as handles (bail) or padlocks (padlock), restricting the movement of the pins that interact with the bushings during the operation of the electric shovel bucket, preventing that rotate on their own axis so that rotational friction does not occur between said pin and the bushing, reducing wear.

Abstract: Modeling process and structural repair of a railway or metal car to assemble a hopper with a self-supporting body different from the original hopper that is formed from steel plates on the structure of the car.

Abstract: Earth movement machine components including a pivot system with adjustable height to actuate a door latch for an excavator bucket.

Abstract: A method for repairing a bucket of a piece of earthwork equipment is provided, the method being specifically applicable to the repair of electric shovel buckets.

Abstract: Embodiments of the invention relate to hoppers for heavy trucks and, more particularly, to hoppers capable of being moved in parts and methods for assembly thereof. In some embodiments, such hoppers comprise a front part, a hood in two parts, two side front parts, two intermediate side sections, two side floor sections, two central floor sections, base plates being joined by welds and secondary joints joined by bolted flanges.

Abstract: A brake system for the doors of excavator buckets which increases the braking force of the 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.

Abstract: A pyramid-shaped tower apparatus is described that will raise and turn mining hoppers for easy access to the areas or elements that need to be maintained or repaired.

Abstract: A rolled lip for rope shovel machine buckets and for excavator buckets of high hardness and improved weldability is provided. The rolled lip is folded and used in buckets with capacities above 25 m3. The lip is made of rolled steel plates of up to 3,000 mm wide and 12,000 mm long and up to 250 mm thick, wherein the steel has flow characteristics between 600 and 900 MPa. The noses and holes used to build the lip are drilled and the shape of the noses is provided by templates or gauges. A method for manufacturing such a rolled lip is also provided.

Abstract: A hopper for transportation of mineral or aggregates which prevents the material from falling off due to movements or slope, and which improves load performance and facilitates the download. In the joining areas between the front and the floor and between the sides and the floor there are folded or cylindered pieces giving curvature to such joining points, thus adding anti-adherent features to this hopper. The front is folded with a wide radius, also achieving an anti-adherent feature. There are also folds in the front and the shield to avoid beams in those areas of the hopper, thus decreasing the total weight of such hopper and reducing the appearance of cracks and lessening the amount of welding. Additionally, the area of release is wider than the front and shield portions to allow for a better sliding of the material during unloading.

Abstract: A rolled latch for excavator buckets that increases duration and facilitates maintenance work since it is changed instead of requiring weld fill, and includes three primary parts: a core, a top wear plate and a bottom wear plate. The parts are manufactured of rolled steel. The core remains between the top and bottom wear plates, and the top and bottom wear plates are welded to the core.

Abstract: A lip for excavator buckets that is manufactured of rolled steel which gives it better mechanical properties than cast lips, achieving a better weight and decreasing manufacturing times. The lip has a machined slot formed in each nose. The slots allow the deformity and wear of the noses to be verified, facilitating repair operations.

Abstract: A pyramid-shaped tower apparatus is described that will raise and turn mining hoppers for easy access to the areas or elements that need to be maintained or repaired.

Abstract: A hopper for transportation of mineral or aggregates which prevents the material from falling off due to movements or slope, and which improves load performance and facilitates the download. In the joining areas between the front and the floor and between the sides and the floor there are folded or cylindered pieces giving curvature to such joining points, thus adding anti-adherent features to this hopper. The front is folded with a wide radius, also achieving an anti-adherent feature. There are also folds in the front and the shield to avoid beams in those areas of the hopper, thus decreasing the total weight of such hopper and reducing the appearance of cracks and lessening the amount of welding. Additionally, the area of release is wider than the front and shield portions to allow for a better sliding of the material during unloading.

Abstract: A hopper for transportation of mineral or aggregates which prevents the material from falling off due to movements or slope, and which improves load performance and facilitates the download. In the joining areas between the front and the floor and between the sides and the floor there are folded or cylindered pieces giving curvature to such joining points, thus adding anti-adherent features to this hopper. The front is folded with a wide radius, also achieving an anti-adherent feature. There are also folds in the front and the shield to avoid beams in those areas of the hopper, thus decreasing the total weight of such hopper and reducing the appearance of cracks and lessening the amount of welding. Additionally, the area of release is wider than the front and shield portions to allow for a better sliding of the material during unloading.

Abstract: A rolled latch for excavator buckets that increases duration and facilitates maintenance work since it is changed instead of requiring weld fill, and includes three primary parts: a nucleus, a top lid and a bottom lid. The parts are manufactured of rolled steel. The nucleus remains between the top and bottom lids, and the top and bottom lids are welded to the nucleus.

Abstract: A lip for excavator buckets that is manufactured of rolled steel which gives it better mechanical properties than cast lips, achieving a better weight and decreasing manufacturing times. The lip has a machined slot formed in each nose. The slots allow the deformity and wear of the noses to be verified, facilitating repair operations.