Hinged type hydraulic heightening and pushing device

Abstract

The utility model discloses a hinged type hydraulic height-adjusting pushing device, which is particularly provided for fully mechanized coal mining faces with dinting in partial roadways, the whole pushing device is fixedly connected with a machine head and a tail frame through a fixing pin and a bolt, and the stability of the machine head and the tail of a conveyor is ensured by adjusting through stretching and retracting of an oil cylinder and rotation of a hinged seat. The device is mainly composed of a support, a hinged frame, a hydraulic control system, a fixing pin, a height adjusting oil cylinder, a pushing base and related connecting pieces. The utility model provides a reasonable pushing and supporting mode of the head and tail pushing points of the fully mechanized coal mining face with the laneway dinting and the laneway and the working face ground fluctuating, so that the use safety and reliability of the fully mechanized coal mining face are improved, and the work task of mine mining workers is simplified.

Description

Technical Field

[0001] This utility model relates to a pushing device, and more particularly to a hinged hydraulic height-adjusting pushing device. Background Technology

[0002] In thin coal seam working faces underground, to ensure sufficient usable height in the roadways, some mines choose to lay the roadways at the bottom, creating a certain height difference with the working face surface. This results in the head and tail of the scraper conveyor being suspended in mid-air, requiring a scraper conveyor head and tail moving device to provide support in this area. Furthermore, due to the varying elevations of the coal seam and roadways in underground coal mines, the moving device needs to be height-adjustable. However, traditional moving devices use a multi-layered, bolted frame structure. Because each layer requires space for the connecting bolts, each layer needs to reach a certain height. This limits the height difference adjustable by traditional moving devices, and adjustments require manual removal or installation of the corresponding bolts. Additionally, existing hydraulic height-adjusting moving devices cannot handle situations where the working face surface is tilted due to elevation changes; they can only adjust the installation angle of the moving part, posing certain safety hazards.

[0003] In view of the above, the designer has continuously studied the knowledge in related fields, continuously researched and improved, and verified through a large number of practices, and proposed the present invention: a technical solution of a hinged hydraulic height adjustment and pushing device. In addition to improving the cumbersome and unsafe operation of the traditional multi-layer pad pushing device, the present invention also effectively solves the problem of readjusting the installation angle of the pushing part due to the inclination of the working surface. Summary of the Invention

[0004] The purpose of this invention is to provide a scraper conveyor with a sliding device equipped with a hinged seat and hydraulically adjustable height. Its height can be freely adjusted according to the underground mining conditions, improving the safety factor when adjusting the height of the sliding device and adapting to the often-occurring tilt of the working face. This invention features a simple design principle, easy implementation, and good economic applicability.

[0005] To achieve the above objectives, this utility model provides an articulated hydraulic height-adjusting and pushing device. The overall structure includes: a support 1, an articulated frame 2, a hydraulic control system 3, a fixing pin 4, a height-adjusting cylinder 5, and a pushing base 6. The support 1 is connected to the pushing base 6 via the fixing pin 4; the hydraulic control system 3 is fixedly connected to the pushing base 6 via bolt assemblies; the height-adjusting cylinder 5 is fixedly connected to the pushing base 6 via bolt assemblies; the height-adjusting cylinder 5 is fixedly connected to the support 1 via bolt assemblies; the articulated frame 2 is connected to the support 1 via round pins; and the entire pushing part is connected to the head or tail frame of the scraper conveyor via positioning pins and specific bolt assemblies. Furthermore, the articulated hydraulic height-adjusting and pushing device is entirely connected to the head or tail frame of the scraper conveyor via positioning pins and specific bolt assemblies.

[0006] Furthermore, the articulated hydraulic height adjustment and pushing device, as the ground under the roadway undulates, when the height space of the roadway is too large or too small, controls the height adjustment cylinder 5 through the hydraulic control system 3 to make it extend or retract, so that the bracket 1 can be installed on the corresponding position of the pushing base 6 through the fixing pin 4.

[0007] Furthermore, the articulated hydraulic height adjustment and pushing device can adaptively rotate the articulated frame 2 when the coal mining face is tilted due to the undulation of the ground.

[0008] As can be seen from the above, the articulated hydraulic height adjustment and pushing device of this utility model has the following advantages and features:

[0009] 1. This utility model discloses a hinged hydraulic height adjustment and pushing device, which can control the height adjustment cylinder 5 through the hydraulic control system 3 to realize the free adjustment of the height of the pushing device within the range formed by the height adjustment cylinder, thereby reducing the labor intensity of mine workers when adjusting the height of the pushing device and saving time and effort.

[0010] 2. This utility model provides an articulated hydraulic height adjustment and pushing device, which has low operational risk during height adjustment and avoids safety accidents during underground mining operations in coal mines.

[0011] 3. This utility model provides a hinged hydraulic height adjustment and pushing device. When the working surface is tilted due to the undulation of the ground, the hinged seat is adjusted in a timely manner, eliminating the need for workers to readjust the installation angle of the pushing part and improving production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a hinged hydraulic height adjustment and pushing device when the height adjustment cylinder retracts.

[0013] Figure 2 This is a schematic diagram of the support structure;

[0014] Figure 3 This is a schematic diagram of the hinged frame structure;

[0015] Figure 4 Diagram showing the adjustment of the hydraulic cylinder;

[0016] Figure 5 This is a schematic diagram of the sliding base structure;

[0017] In the diagram: 1. Bracket, 2. Hinge bracket, 3. Hydraulic control system, 4. Fixing pin, 5. Height adjustment cylinder, 6. Push base. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other. The technical solutions of the embodiments of this utility model will be described completely and clearly below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them.

[0019] Specific application process: Figure 1 The diagram shows an extreme state of the articulated hydraulic height-adjusting and pushing device of this utility model. In underground coal mine working faces, the coal seams and roadways have varying elevations. The position of the support 1 on the pushing base 6 can be adjusted according to the actual situation. Figure 1 The diagram shows the lifting cylinder 5 fully retracted and the hinge seat 2 in a parallel position. As the surface conditions of the underground working face change, the lifting cylinder 5 extends to the appropriate position and is fixed by the fixing pin 4. The hinge seat 2 automatically rotates to adapt to changes in the inclination angle of the working face, requiring no manual operation. In actual underground production, only the hydraulic control system 3 needs to be operated to meet practical needs.

[0020] It should be understood that the above description is only a preferred embodiment of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hinged hydraulic height-adjusting and pushing device, characterized in that, The overall structure includes: bracket (1), hinge frame (2), hydraulic control system (3), fixing pin (4), height adjustment cylinder (5), and push base (6). The bracket (1) is connected to the push base (6) through the fixing pin (4); the hydraulic control system (3) is fixedly connected to the push base (6) through the bolt assembly; the height adjustment cylinder (5) is fixedly connected to the push base (6) through the bolt assembly; the height adjustment cylinder (5) is fixedly connected to the bracket (1) through the bolt assembly; the hinge frame (2) is connected to the bracket (1) through the round pin; and the entire push part is connected to the head frame or tail frame of the scraper conveyor through the positioning pin and bolt assembly.

2. The articulated hydraulic height adjustment and pushing device according to claim 1, characterized in that, As the ground beneath the tunnel rises and falls, when the tunnel height space is too large or too small, the hydraulic control system (3) controls the height adjustment cylinder (5) to make it extend or retract so that the bracket (1) can be installed on the corresponding position of the push base (6) through the fixing pin (4).

3. The articulated hydraulic height adjustment and pushing device according to claim 1, characterized in that, As the coal mining face tilts with the undulations of the ground, the articulated frame (2) can rotate adaptively.

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