Liftable roof protection device of mine carry-scraper

Abstract

The utility model discloses a liftable roof protection device of a mining carry-scraper, and belongs to the technical field of mining mechanical engineering. The device comprises a hydraulic device, a limiting device, a fixing device and a lifting operation device, the hydraulic device comprises a hydraulic pump (1), a hydraulic hose (2) and a hydraulic lifting support column (3); the limiting device comprises an ascending limiting stopper (4) and a descending limiting stopper (5); the fixing device comprises a mechanical fixing bolt (6); and a lifting operation device (7). According to the utility model, the efficiency of shoveling operation is improved, and the potential safety hazard caused by illegal removal of the protective roof is avoided.

Description

Technical Field

[0001] The utility model relates to a liftable top protection device for a mining scraper, belonging to the technical field of mining machinery engineering. Background Art

[0002] With the rapid development of the times and people's yearning for a better life, mineral resources are also in great demand. At present, mining activities are still continuing, and various advanced mining shovel equipment are also dazzling. Mining scrapers, as an efficient and flexible shovel equipment, have been widely used, especially in metal and non-metal mines. Scrapers are a kind of trackless equipment in mines. At present, they are mainly used in the mining and transportation of metal and non-metal underground mines. Trackless mining equipment with scrapers and dump trucks as the core has become the mainstream of mining technology development at home and abroad.

[0003] Famous brands of scrapers at home and abroad include: Caterpillar (CAT), Terex (TEREX), Atlas Copco (Atlas Copco), Ruilong Heavy Industry (RLZG), Yutong Heavy Industry (YUTONG), etc. At present, the scrapers widely used in the market are divided into two types: internal combustion scrapers and electric scrapers. Internal combustion scrapers are suitable for well-ventilated working environments and are flexible and efficient; electric scrapers are more environmentally friendly and pollution-free.

[0004] The structure of the scraper loader includes wheels, traction beams, frames, hydraulic devices, buckets with earth-shoveling mechanisms, bracket mechanisms, and frame lifting and adjustment mechanisms. According to the provisions of 6.3.4.2 of the "Safety Regulations for Metal and Non-metal Mines": "There should be protective plates or protective nets above the operators of trackless equipment." Therefore, the roof guard of the scraper loader cab should be kept intact to prevent production safety accidents. In daily mine production, scrapers also have some disadvantages, especially in old mines that have been built for a long time or in mining veins. The sizes of various tunnels are different, and the width and height are relatively small. The height of the scraper loader is often limited during operation. Therefore, many company operators violate regulations and illegally dismantle the roof guard of the cab, causing serious safety hazards.

[0005] According to market surveys, the existing roof guards of various types of scraper loaders on the market are mainly bolted and welded, and the height of the roof guards cannot be adjusted on site. When working underground, the height of the tunnel and the height of the scraper roof guard are often limited, which greatly reduces the advantages of the scraper loaders in terms of flexibility and efficiency. If scrapers of different specifications and models are purchased, the production cost will be greatly increased.

[0006] Therefore, the utility model is to develop a mine shovel loader liftable top protection device to address the shortcomings of the mine shovel loader top protection. The mine shovel loader liftable top protection device of the utility model can basically realize the automation of the entire top protection lifting process, thereby saving a lot of manpower and material resources, greatly improving the efficiency of shoveling operations and avoiding the safety hazards caused by illegal removal of the top protection. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a liftable top protection device for a mining scraper.

[0008] The utility model is realized through the following technical solutions.

[0009] The utility model discloses a lifting top protection device for a mining scraper, belonging to the technical field of mining machinery engineering. The device described in the utility model comprises a hydraulic device, a limiting device, a fixing device and a lifting operation device; the hydraulic device comprises a hydraulic pump (1), a hydraulic hose (2), and a hydraulic lifting support (3); the limiting device comprises an upward limiter (4) and a downward limiter (5); the fixing device comprises a mechanical fixing bolt (6); and a lifting operation device (7).

[0010] The hydraulic pump (1) connects the hydraulic lifting support (3) to the hydraulic oil tank of the scraper by using a hydraulic hose (2), and its function is to transport the hydraulic oil in the hydraulic oil tank of the scraper to the hydraulic lifting support (3), so as to provide power for the lifting of the hydraulic lifting support (3); the hydraulic hose (2) is a connecting device for various components of the hydraulic system, and the hydraulic hose connected below the hydraulic lifting support (3) can move up and down accordingly; the hydraulic lifting support (3) is a hydraulic cylinder that can be lifted and lowered, and is arranged on one side at a front and rear diagonal angle, and its function is to adjust the upper roof guard to meet the passable height of the scraper in the tunnel by hydraulic lifting, and the other diagonal supports are driven liftable supports.

[0011] The limiting device comprises an ascending limiter (4) which is a limiting device fixed on the lower side of the hydraulic lifting support (3) and has the function of limiting the hydraulic lifting support (3) from ascending excessively and causing the roof guard to fall off; and a descending limiter (5) which is a limiting device fixed on the upper side of the hydraulic lifting support (3) and has the function of limiting the hydraulic lifting support (3) from descending excessively and preventing the roof guard from squeezing and injuring the driver.

[0012] The fixing device comprises a mechanical fixing bolt (6) which is a bolt mechanically fixed to the driven support and has the function of mechanically fixing after being lifted into place, so as to prevent the roof guard from slipping due to hydraulic equipment failure or the like.

[0013] The lifting operation device (7) is a control switch for controlling the hydraulic pump (1), and its function is to control the hydraulic lifting support (3) through the "↑↓" buttons, thereby achieving the purpose of lifting the roof protection.

[0014] The beneficial effect of the utility model is that: by adopting the technical scheme of the utility model, when the scraper loader is limited in the tunnel height underground, the height of the roof guard can be changed at any time according to the operating conditions, thereby greatly improving the adaptability and flexibility of the equipment and meeting the requirements of various transportation sites in the mine; the operation is simple and efficient, and the operational risks caused by illegal removal of the roof guard are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a longitudinal projection diagram of the utility model;

[0017] Figure 3 It is a horizontal projection diagram of the utility model; DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with specific implementation methods, but the protection scope of the present invention is not limited to the described contents.

[0019] With the permission of the inventor and the right holder, the device can be independently modified according to the scraper parameters selected by each mine. The specific production principles are as follows:

[0020] (1) The hydraulic hose (2) installed in the device should be allowed to move up and down within a range equal to the vertical height between the rise limiter (4) and the fall limiter (5);

[0021] (2) The hydraulic pump (1) and hydraulic lifting support (3) of the device should be selected based on the capacity of the hydraulic oil tank of the scraper itself, and should not affect the power output of the bucket. They only need to meet the requirements of lifting and protecting the top;

[0022] (3) The hydraulic lifting support (3) and the driven support of the device should be regularly maintained to ensure the lubrication effect of the lifting support.

[0023] The specific operation is as follows:

[0024] If the scraper cannot pass through the tunnel due to the height limitation during transportation, loosen the mechanical fixing bolts (6), press the "↑↓" control switch on the lifting and lowering operation device (7), raise and lower the roof guard to a passable height, tighten the mechanical fixing bolts (6), and then pass through safely.

Claims

1. A lifting top protection device for a mining scraper, characterized in that: The device comprises a hydraulic device, a limiting device, a fixing device and a lifting operation device; the hydraulic device comprises a hydraulic pump (1), a hydraulic hose (2) and a hydraulic lifting support (3); the limiting device comprises an ascending limiter (4) and a descending limiter (5); the fixing device comprises a mechanical fixing bolt (6); and the lifting operation device (7).

2. The lifting and lowering top protection device for a mining scraper according to claim 1 is characterized in that: The hydraulic pump (1) connects the hydraulic lifting support (3) to the hydraulic oil tank of the scraper by using a hydraulic hose (2), and its function is to transport the hydraulic oil in the hydraulic oil tank of the scraper to the hydraulic lifting support (3), so as to provide power for the lifting of the hydraulic lifting support (3); the hydraulic hose (2) is a connecting device for various components of the hydraulic system, and the hydraulic hose connected below the hydraulic lifting support (3) can move up and down accordingly; the hydraulic lifting support (3) is a hydraulic cylinder that can be lifted and lowered, and is arranged on one side at a front and rear diagonal angle, and its function is to adjust the upper roof guard to meet the passable height of the scraper in the lane by hydraulic lifting, and the other diagonal supports are driven liftable supports.

3. The lifting and lowering top protection device for a mining scraper according to claim 1 is characterized in that: The limiting device comprises an ascending limiter (4) which is a limiting device fixed on the lower side of the hydraulic lifting support (3) and has the function of limiting the hydraulic lifting support (3) from ascending excessively and causing the roof guard to fall off; and a descending limiter (5) which is a limiting device fixed on the upper side of the hydraulic lifting support (3) and has the function of limiting the hydraulic lifting support (3) from descending excessively and preventing the roof guard from squeezing and injuring the driver.

4. The lifting and lowering top protection device for a mining scraper according to claim 1 is characterized in that: The fixing device comprises a mechanical fixing bolt (6) which is a bolt mechanically fixed to the driven support and has the function of mechanically fixing after being lifted into place, so as to prevent the roof guard from sliding off due to a failure of the hydraulic equipment.

5. The liftable top protection device for a mining scraper according to claim 1 is characterized in that: The lifting operation device (7) is a control switch for controlling the hydraulic pump (1), and its function is to control the hydraulic lifting support (3) through the "↑↓" buttons, thereby achieving the purpose of lifting the roof protection.

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