CN105173666A - Telescopic ladder for stage loader tail - Google Patents

Abstract

The invention relates to the technical field of stage loaders in fully-mechanized coal mining devices for coal mining under coal mine wells, in particular to a telescopic ladder used in a stage loader tail. The telescopic ladder is characterized in that compared with a traditional ladder, the ladder is mainly composed of a ladder body (1), a supporting frame (2), a support (3), a fixing frame (4), an oil cylinder (5), a sliding frame (6) and the like. In an existing stage loader, an adopted ladder is fixed and nonadjustable; and due to the variability of the underground mining condition, granularity of coal briquettes at a rear conveying machine cannot be guaranteed especially when the ladder is put into a top coal device. By means of the telescopic ladder for the stage loader tail, when large coal briquettes pass, the ladder can be withdrawn timely, collision is avoided, and thus large blocks of coal can pass.

Description

Retractable ladder for the tail of the loader

technical field

The invention relates to the technical field of a loader in fully mechanized mining equipment for underground coal mining in coal mines, in particular to a retractable ladder for the tail of the loader.

Background technique

At present, in the fully-mechanized mining equipment for underground coal mining in coal mines, in order to pass through the transfer machine, the human ladders used in the existing transfer machines are all fixed and non-adjustable. Due to the variability of underground mining conditions, fixed human ladders are common. of impracticality. Especially in the top coal caving equipment, the equipment cannot guarantee the particle size of the coal blocks on the rear conveyor. When a large coal block passes through, if a traditional man ladder is used, it will collide with the coal block, thus causing the man ladder to be damaged.

Contents of the invention

The purpose of the present invention is to provide a kind of retractable people's ladder used in the transfer machine of the top coal caving equipment in the fully mechanized mining equipment of coal mining under the coal mine. The structure adopted is retractable, which not only ensures the safe passage of the staff, but also ensures that the coal can pass through the equipment smoothly when encountering large lumps of coal, avoiding equipment damage.

The technical scheme of the present invention is: the retractable people's ladder at the end of the reloading machine is made of: people's ladder 1, support 2, bearing 3, fixed mount 4, oil cylinder 5, slide frame 6. The fixed frame 4 is fixed with the head transmission part by the support 2 and the bearing 3, the slide frame 6 is connected with the fixed frame 4 by the oil cylinder 5 and the track, and the people's ladder 1 is installed on the fixed frame. The retractable structure is driven by an oil cylinder and controlled by an operating valve group, and can be linked with other parts of the transfer machine.

The beneficial effect of the present invention is: adopting package technology, hydraulic control, modular design, independent assembly. The utility model has the advantages of simple structure, reliability and practicability. Compared with the existing fixed man-ladder in coal mining fully-mechanized mining equipment in coal mines, the applicability of the man-ladder is enhanced, and it can be used in both the traditional loader and the new fully enclosed loader. Under certain circumstances, it can cooperate with other special cover plates to realize linkage opening under the control of the operating valve group, so that the coal flow can pass through smoothly, and it can prevent equipment shutdown and equipment damage caused by coal flow blockage. And the installation position of the personal ladder is conducive to the staff to enter the conveyor part through the transfer machine more conveniently and safely for equipment maintenance.

Description of drawings

Figure 1: Front view of the present invention.

Figure 2: Top view of the present invention.

Figure 3: Schematic diagram of the state of the sliding carriage of the present invention after it is released.

Figure 4: Schematic diagram of the structure of a traditional fixed ladder.

Fig. 5: A schematic view of the present invention installed on the nose frame and stretched out.

Detailed ways:

As shown in Figure 1 and Figure 2, the fully enclosed reloading machine tail is made of a retractable people's ladder, including main structures such as people's ladder 1, support 2, support 3, fixed mount 4, oil cylinder 5, and slide frame 6.

Figure 3 is a schematic diagram of the state of the carriage extended after oil is supplied to the oil cylinder. At this time, the oil cylinder is extended by operating the valve group to supply oil, which drives the carriage to extend across the loader, allowing the staff to pass. After the worker passes through, operate the control valve to retract the oil cylinder and drive the carriage to retract.

Figure 4 shows the traditional ladder structure, one end is fixed to the baffle side of the unloading section of the reloading machine, and the other side has no support, and it freely crosses the coal flow of the reloading machine to connect both sides. The structure is simple and the manufacture is simple, but the practicability is poor. , the safety protection ability is poor, and it is not easy to disassemble and assemble. When the coal block is too large, it must be stopped to remove the man ladder, otherwise it will damage the man ladder, and even damage the unloading chute of the transfer machine.

Apparently, it can be found from the above description that this telescopic man ladder, that is, the retractable man ladder for the tail of the fully enclosed transfer machine, has many advantages compared with the traditional man ladder, and is more suitable for the use of the underground transfer machine.

Claims (2)

1. A retractable people ladder for the tail of a reloading machine, characterized in that: Compared with the traditional people ladder, this people ladder is mainly composed of the following parts: people ladder (1), bracket (2), support (3) , fixed frame (4), oil cylinder (5), sliding frame (6), etc.; the fixed frame (4) is fixed with the transmission part of the machine head through the bracket (2) and the support (3), and the sliding frame (6) is fixed through the oil cylinder ( 5) be connected with track and fixed mount (4), and people's ladder (1) is installed on the fixed mount. 2. The retractable ladder for the tail of the loader as claimed in claim 1, characterized in that: the ladder is retractable, that is, the slide frame can be freely extended and retracted in the fixed frame, and the The valve group is controlled to facilitate the passage of staff without obstructing the passage of coal flow.