Large-tonnage slender externally powered curve rail-mounted unloading skip

Patent metadata

Field	Value
Publication number	US-9878882-B2
Application number	US-201414647671-A
Country	US
Kind code	B2
Filing date	Mar 26, 2014
Priority date	Nov 25, 2013
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

The present invention provides a large-tonnage slender externally powered rail-mounted unloading skip, comprising an upper bin body and a lower bin body that are respectively formed by an inner lining plate and an outer plate fixed together via a number of pin shafts, a self-locking gate, and a gate opening device. A loading opening and a coal baffle plate that is used to block coal when the coal is loaded are arranged on the upper part of the upper bin body, a self-locking gate composed of a sector gate plate and unloading rollers is arranged on the lower bin body, a coal chute is arranged on the lower part of the self-locking gate, the upper bin body and the lower bin body are connected together through flanged connection, and channel irons are welded around the walls of the upper bin body and lower bin body respectively; when the skip is at an unloading position, externally powered telescopic push rods push the unloading rollers to move in an unloading rail of the slide block, so that the self-locking gate is opened, and the coal is unloaded along a coal chute. With the reliable connection between the upper bin body and the lower bin body, effective and convenient fixing of the lining plate, and reliable opening of the gate, the skip can meet the production requirements of 10-million tonnage large-size shafts.

First claim

The invention claimed is:

1. A large-tonnage slender externally powered rail-mounted unloading skip, comprising:
a coal chute;
a gate opening device that is located at a shaft mouth and includes telescopic push rods fixed at the two sides of the shaft mouth and a slide block connected to the end of the telescopic push rods;
a skip bin body connected to the upper part of the coal chute;
a head rope hanging and connecting plate positioned on the top of the skip bin body, and a tail rope hanging and connecting plate positioned on the bottom of the coal chute,
wherein the skip bin body comprises an upper bin body and a lower bin body connected together, and channel irons are welded at an interval around the walls of the upper bin body and lower bin body;
wherein a coal baffle plate is located at an upper opening of the upper bin body, and a self-locking gate is located above the coal chute and positioned at a lower opening of the lower bin body;
wherein the self-locking gate comprises sector gate plates and unloading rollers, and the unloading rollers are welded below a symmetrical center line of the sector gate plates,

wherein the skip bin body comprises an inner lining plate and an outer plate, and a plurality of pin shafts are fixed to the inner lining plate and arranged on the outer plate, and each pin shaft has a pin bolt fixed to the outer plate;
wherein the slide block comprises:
a rectangular plate frame and an unloading rail fixedly connected to one side of the plate frame,
four rollers arranged at the four corners of the plate frame respectively,
and upper and lower guide rails arranged at the upper end and lower end of the plate frame respectively,
wherein the upper and lower guide rails constrain movement of the rollers to a horizontal direction thereby allowing movement of the rollers in a horizontal direction and restricting movement of the rollers in a vertical direction;

wherein, when the unloading skip is configured such that when it is on the bottom of a shaft to load coal, the coal is loaded by a coal distributor of a measure hopper and the coal enters into the skip bin through a loading opening of the skip, while the self-locking gate locks up automatically;
wherein, the unloading skip is further configured such that after the skip bin is fully filled with coal, the skip is structurally in a condition to be hoisted up by a steel wire rope to the shaft mouth to unload coal, such that, in the hoisting process of the skip, the self-locking gate remains in a self-locked state under the pressure of the coal, and will not unlock;
wherein, the unloading rollers on the self-locking gate of the skip are configured to enter into the unloading rail when an unloading process starts, and the telescopic push rods are configured to start to push the slide block to move in a horizontal direction;
wherein, the unloading rollers are configured to move upwards and horizontally in the unloading rail, when the skip is hoisted up;
wherein the self-locking gate is configured to unlock, and the sector gate plate is configured to open and facilitate coal unloading through the unloading opening along the coal chute, until all coal is unloaded;
wherein, the telescopic push rods are configured to retract and thereby facilitate downward movement of the skip; and
wherein the self-locking gate is configured to lock up and facilitate a next operating cycle, when the skip is moved to the bottom of the shaft.

Assignees

• Xuzhou Coal Mine Safety Equipment Mft Co Ltd
• Univ China Mining

Inventors

• Zhu Zhencai
• Zhou Gongbo
• Hu Changhua
• Cao Guohua
• Li Wei
• Chen Guoan
• Peng Yuxing
• Du Qingyong
• Wang Miao

Classifications

• B66B17/08 Primary

  Mining skips · CPC title

• B66B17/32

  for skips · CPC title

• B66B17/26

  for loading or unloading mining-hoist skips · CPC title