Counterfeit roof experiment device of automatic hydraulic cutting coal roadway tunneling trolley

Abstract

The utility model discloses an automatic hydraulic cutting coal roadway tunneling trolley counterfeit top experiment device which comprises a hydraulic stand column unit and a foldable top beam unit, the hydraulic stand column unit and the foldable top beam unit are fixedly connected, and a supporting structure is arranged outside a foldable top beam. According to the experimental device for the counterfeit roof of the dynamic hydraulic cutting coal roadway tunneling trolley, the coal roadway supporting personnel can support in time when tunneling a coal roadway, the stability of the roadway which is just tunneled is guaranteed, the working efficiency is improved, and the working efficiency is improved. Safety of operators and the trolley in the coal roadway operation process is protected, and supporting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of underground coal mine tunnel excavation, in particular to an experimental device for simulating the top of an automatic hydraulic block cutting coal tunnel excavation trolley. Background Art

[0002] At present, the geological conditions of coal seams are complex. Various geological structural problems such as faults, folds, karst, etc. often exist in coal seams. After mining, stress concentration, instability and fracture are easy to occur. The trolley will be hit by unstable and fractured coal blocks during the mining process, thereby causing damage to the trolley. At the same time, the support of coal roadways always lags behind the mining progress and cannot be supported in time, which poses a great safety hazard to the coal roadway support workers. Therefore, it is urgent to develop a simple equipment that can ensure that the trolley is not damaged during the excavation process and can ensure the safety and timely support of the support personnel. Utility Model Content

[0003] The utility model aims to provide an automated hydraulic block coal tunnel excavation trolley simulated roof experimental device, so that coal tunnel support personnel can carry out support in time when excavating the coal tunnel, ensure the stability of the tunnel that has just been excavated, protect the safety of the operating personnel and the trolley during the coal tunnel operation process, and improve the support efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides an automated hydraulic block coal tunnel excavation trolley imitation roof experimental device, the hydraulic column unit includes a hydraulic column cylinder, a hydraulic column telescopic rod assembly and a mounting base, the foldable top beam unit includes a hydraulic jack, a top beam, an anchor rod through hole, a top beam support, a top beam hinge and a hydraulic jack, and the hydraulic column unit and the foldable top beam unit are connected by bolts.

[0005] Preferably, the top of the hydraulic column unit is fixedly connected to the foldable top beam unit, and the entire device is installed on the automated hydraulic block cutting coal lane excavation trolley through a mounting base.

[0006] Preferably, the hydraulic jack and the top beam in the foldable top beam unit are connected via a hinge pin.

[0007] Preferably, the top beam at the upper part of the foldable top beam unit is provided with a top beam hinge for folding.

[0008] Preferably, the upper top beam of the foldable top beam unit is provided with a through hole for support personnel to drive anchor rods.

[0009] An experimental method for a hydraulic block coal tunneling trolley imitating top experimental device comprises the following steps:

[0010] S1. Install the hydraulic column cylinder body on both sides of the chassis of the automated hydraulic block coal tunneling trolley through the mounting base;

[0011] S2. Place the foldable top beam unit on the upper part of the hydraulic column and fix it;

[0012] S3, the hydraulic column cylinder raises the hydraulic column telescopic rod assembly, so that the foldable top beam unit rises;

[0013] S4. The hydraulic jacks on both sides of the foldable support extend to lift the top beam to form a 90° angle with the support, thus achieving a protective effect;

[0014] Preferably, in S1, the height to which the hydraulic prop is raised should be sufficient for the foldable top beam to fit the roof of the coal roadway and for operators to complete support operations under the top beam.

[0015] Preferably, in S4, the through hole design on the folding top beam is adapted to support various types of anchor rods.

[0016] The advantages and positive effects of the automated hydraulic cutting coal tunnel excavation trolley imitating roof experimental device described in the utility model are: through the action of hydraulic columns and folding top beams, the top beams are made to fit the roof plate, ensuring that the roof plate is not damaged by stress concentration, instability and breakage causing damage to the trolley, and at the same time, anchor support is carried out in time through the through holes on the top beam to ensure the stability of the tunnel and the safety of subsequent operators, thereby achieving safe and efficient trolley operation.

[0017] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of an automatic hydraulic block cutting coal roadway excavation trolley counterfeit roof experimental device of the utility model;

[0019] Figure 2 It is a side view of an experimental device for simulating the top of an automated hydraulic block cutting coal roadway excavation trolley of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of a hydraulic column unit of an embodiment of an automated hydraulic block cutting coal roadway excavation trolley imitation experimental device of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of a foldable top beam unit of an embodiment of an automated hydraulic block cutting coal roadway excavation trolley counterfeit top experimental device of the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the application structure of an embodiment of an automated hydraulic block cutting coal tunnel excavation trolley roof simulation experimental device.

[0023] Reference numerals

[0024] 1. Hydraulic column cylinder; 2. Hydraulic column telescopic rod assembly; 3. Hydraulic jack; 4. Top beam; 5. Anchor rod through hole; 6. Top beam support; 7. Top beam hinge; 8. Mounting base; 9. Automated hydraulic block coal tunneling trolley DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0026] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] Embodiment A hydraulic block cutting coal roadway excavation trolley simulated roof experimental device.

[0028] like Figure 1 As shown, an automated hydraulic block coal tunnel excavation trolley imitation top experimental device includes a hydraulic column unit and a foldable top beam unit. The hydraulic column unit includes a hydraulic cylinder body 1, a hydraulic column telescopic rod assembly 2 and a mounting base 8. The foldable unit includes a hydraulic jack 3, a top beam 4, an anchor rod through hole 5, a top beam support 6 and a top beam hinge 7. The hydraulic column cylinder body 1 is sealed and connected to the hydraulic telescopic rod assembly 2. The hydraulic jack 3 and the top beam 4 are connected by a hinge pin and can rotate relative to each other, and are connected to the top beam support 6 by a hinge pin. A top beam hinge 7 is provided on the top beam 4, and the top beam 4 can be raised at the same time when the hydraulic jack 3 is raised through the top beam hinge 7. The upper part of the hydraulic column telescopic rod assembly 2 and the lower part of the top beam support 6 are fixedly connected. Thereby, the automated hydraulic block coal tunnel excavation trolley can operate safely under complex coal seam geological conditions.

[0029] A method for using a hydraulic block coal tunneling trolley imitating top experimental device comprises the following steps:

[0030] S1. Design the diameter of the hydraulic column cylinder 1 according to the width left on both sides of the trolley, design the length of the hydraulic column telescopic rod assembly 2 according to the working height, and install the hydraulic column unit on both sides of the automated hydraulic block coal lane excavation trolley; the diameter of the hydraulic column cylinder 1 is not larger than the width left on both sides of the automated hydraulic block coal lane excavation trolley 9, and the height of the hydraulic column telescopic rod assembly 2 is not higher than the working height of the automated hydraulic block coal lane excavation trolley 9.

[0031] S2. The hydraulic column cylinder 1 lifts the hydraulic column telescopic rod assembly 2, so that the folding top beam unit is lifted, and the opening of the top beam 4 is not hindered.

[0032] S3, the top beam 4 reaches the predetermined position, the hydraulic jacks 3 on both sides of the top beam are extended, and the top beam 4 is lifted through the top beam hinge 7 to play a supporting function, thereby protecting the safety of the trolley and the support personnel.

[0033] Therefore, the utility model adopts the above-mentioned hydraulic cutting coal roadway excavation trolley simulated roof experimental device, so that the automated hydraulic cutting coal roadway excavation trolley and support workers can perform safe operations under the simulated roof experimental device, and ensure the efficient operation of the trolley and timely support of the support personnel, thereby ensuring the stability of the roadway and improving safety.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. An automated hydraulic block coal tunnel excavation trolley imitation roof experimental device, characterized in that: It includes a hydraulic column unit and a foldable top beam unit. The hydraulic column unit includes a hydraulic column cylinder, a hydraulic column telescopic rod assembly and a mounting base. The foldable top beam unit includes a hydraulic jack, a top beam, an anchor rod through hole, a top beam support, a top beam hinge and a hydraulic jack. The hydraulic column unit and the foldable top beam unit are connected by bolts.

2. The automatic hydraulic block coal tunneling trolley counterfeiting top experimental device according to claim 1 is characterized by: The top of the hydraulic column unit is fixedly connected to the foldable top beam unit.

3. The automatic hydraulic block coal tunneling trolley counterfeiting top experimental device according to claim 1 is characterized by: The foldable top beam unit is provided with a hydraulic jack, which is connected to the top beam via a hinge pin.

4. The automatic hydraulic block coal tunneling trolley counterfeiting top experimental device according to claim 1 is characterized by: The upper top beam of the foldable top beam unit is provided with a top beam hinge for folding.

5. The automatic hydraulic block coal tunneling trolley counterfeiting top experimental device according to claim 1 is characterized by: The top beam of the foldable top beam unit is provided with anchor rod through holes for support personnel to drive anchor rods.

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