Combined protective plate of heading machine

Abstract

The utility model belongs to the technical field of tunneling equipment support, and provides a combined protective plate of a tunneling machine, which comprises a protective plate assembly, a connecting piece and a sensor, the protective plate assembly comprises a first protective plate and a second protective plate, the second protective plate is fixedly connected with the tunneling machine, the first protective plate and the second protective plate are hinged through the connecting piece, and the connecting piece comprises a base plate, a hinge and a hinge shaft. The base plate is fixedly connected with the second protection plate, the hinge shaft is fixedly connected with the base plate, the hinge is fixedly connected with the first protection plate, and a sensor is arranged on the base plate and used for sensing the relative position of the first protection plate and the second protection plate. The protective plate assemblies are connected through the hinges, rapid bending and laying are achieved, operation of workers during overhauling is facilitated, and the safety risk that protective plates fall off is avoided; through the structural design between the protective plate assembly and the connecting piece, the protective plate assembly can be naturally supported and positioned when opened or flatly laid, whether the protective plate is opened or not can be judged through detection signals of the sensor, and the safety of the heading machine during working is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of support for tunneling equipment, and relates to a shield for a roadheader, in particular to a combined shield for a roadheader. Background Art

[0002] When a roadheader is tunneling in a roadway, due to limited reinforcement and support for the roof, coal blocks and gangue often fall. The shield is mainly used to protect components such as hydraulic valve blocks, circuits, and hydraulic hoses on the roadheader. At present, the size of the installed shield is often large, which is not convenient for transportation, assembly, and maintenance. Especially in the narrow underground space with few auxiliary instruments, it is inconvenient to disassemble the shield during maintenance. Moreover, the disassembled shield is freely placed on the machine body, which has certain safety hazards. In addition, if the shield is opened during non-maintenance work, it may also damage the hydraulic components and the roadheader, or cause personal safety accidents. Content of the Utility Model

[0003] The purpose of the utility model is to provide a combined shield for a roadheader, which has a simple structure, a small size, is suitable for single-person operation, and has an on-line monitoring function.

[0004] The technical solution adopted by the utility model to achieve the above purpose is as follows:

[0005] A combined shield for a roadheader includes a shield assembly, a connecting piece, and a sensor. The shield assembly includes a first shield and a second shield. The second shield is fixedly connected to the roadheader. The first shield and the second shield are hinged through the connecting piece. A sensor is arranged on the connecting piece, and the sensor is used to sense the relative position of the first shield and the second shield.

[0006] Further, the connecting piece includes a backing plate, a hinge, and a hinge shaft. The backing plate is fixedly connected to the second shield. The hinge shaft is fixedly connected to the backing plate. The hinge is fixedly connected to the first shield. The first shield can be rotated above the backing plate through the cooperation of the hinge and the hinge shaft.

[0007] Further, the sensor is fixed above the backing plate, and a flat groove cooperating with the sensor is processed on the first shield. When the first shield is opened, the sensor can sense the position of the flat groove.

[0008] Further, the sensor is a flat optical fiber sensor.

[0009] Further, when the first shield is closed and lies flat on the second shield, the backing plate forms support and positioning for the first shield.

[0010] The beneficial effects of the present utility model are as follows: The guard plate is in a hinged form, which is convenient for maintenance workers to open and close. During maintenance, the guard plate does not need to be completely disassembled and can be opened by rotation, avoiding fixing the guard plate assembly with bolts or completely disassembling it, and avoiding the potential safety hazards when the guard plate assembly is in a completely free state;

[0011] Meanwhile, an optical fiber sensor is installed on the backing plate. The roadheader control box can judge whether the guard plate is opened according to the detection signal of the optical fiber sensor. When the guard plate is opened in a non-maintenance state, it can be detected in time through sound and light alarm methods, improving the safety during the operation of the roadheader and reducing the safety risks caused by human factors;

[0012] The structural design between the guard plate assembly and the connecting piece enables the guard plate to be naturally supported and positioned when it is opened or laid flat, ensuring that the combined guard plate is neat, beautiful and convenient to operate. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model when it is opened;

[0014] Figure 2 is a schematic structural diagram of the present utility model when it is laid flat;

[0015] In the figure: 1. First guard plate; 2. Sensor; 3. Hinge; 4. Hinge shaft; 5. Backing plate; 6. Second guard plate; 7. Flat groove. Specific Embodiments

[0016] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] A combined guard plate for a roadheader, as Figure 1 and Figure 2As shown in the figure, it includes a guard plate assembly, a connecting piece, and a sensor. The guard plate assembly includes a first guard plate 1 and a second guard plate 6. The second guard plate 6 is fixedly connected to the roadheader. The first guard plate 1 and the second guard plate 6 are hinged through a connecting piece. The connecting piece includes a backing plate 5, a hinge 3, and a hinge shaft 4. The backing plate 5 is fixedly connected to the side of the second guard plate 6 away from the roadheader. The hinge shaft 4 is fixedly connected to the backing plate 5. The hinge 3 is fixedly connected to the first guard plate 1. The first guard plate 1 can be rotated above the backing plate 5 through the cooperation of the hinge 3 and the hinge shaft 4 on the backing plate 5. When the first guard plate 1 is closed and lies flat with the second guard plate 6, the backing plate 5 forms a support and positioning for the first guard plate 1. A sensor 2 is also provided above the backing plate 5. The sensor 2 is used to sense the relative position of the first guard plate 1 and the second guard plate 6. A flat groove 7 cooperating with the sensor 2 is machined on the first guard plate 1. When the first guard plate 1 is opened, the sensor 2 can sense the position of the flat groove 7.

[0018] The sensor 2 adopts a flat optical fiber sensor, which is convenient to be fixed on the backing plate 5 through bolts. It can judge whether the guard plate is opened according to the detection signal of the optical fiber sensor. When the guard plate is opened in a non-maintenance state, it can be timely detected through sound and light alarm methods, improving the safety during the operation of the roadheader and reducing the safety risks caused by human factors.

[0019] In the guard plate assembly of the present utility model, the connection between the guard plates is through hinges, which can achieve rapid bending and lying flat, facilitating the operation of workers during maintenance and avoiding the safety risks existing in the easy dropping of the guard plates in a free state after being completely disassembled.

[0020] The structural design between the guard plate assembly and the connecting piece enables the guard plate assembly to be naturally positioned when opened or lying flat, ensuring that the combined guard plate is neat, beautiful, and convenient to operate.

[0021] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A combined guard plate for a roadheader, characterized in that: It includes a guard plate assembly, a connecting piece and a sensor. The guard plate assembly includes a first guard plate and a second guard plate. The second guard plate is fixedly connected to the tunnel boring machine. The first guard plate and the second guard plate are hinged by a connecting piece. A sensor is arranged on the connecting piece. The sensor is used to sense the relative position of the first guard plate and the second guard plate.

2. A combined guard plate for a roadheader according to claim 1, characterized in that: The connecting member includes a pad, a hinge, and a hinge shaft. The pad is fixedly connected to the second guard plate, the hinge shaft is fixedly connected to the pad, and the hinge is fixedly connected to the first guard plate. The first guard plate can be rotated above the pad by the hinge and the hinge shaft.

3. A combined guard plate for a roadheader according to claim 2, characterized in that: The sensor is fixed above the pad, and a flat groove matching the sensor is processed on the first guard plate. When the first guard plate is opened, the sensor can sense the position of the flat groove.

4. The combined guard plate for a roadheader according to claim 2, characterized in that: When the first guard plate is closed and laid flat with the second guard plate, the pad provides support and positioning for the first guard plate.

5. The combined guard plate for a roadheader according to claim 1, characterized in that: The sensor is a flat optical fiber sensor.

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