Ultra-light protective cover for cutting head of roadheader

Abstract

According to the ultra-light protective cover for the cutting head of the roadheader, materials and space can be saved, the weight of the protective cover is reduced, and the working intensity of workers is reduced; according to the technical scheme, the protective cover is arranged on the outer side of the cutting head and comprises an arc top plate and a front baffle, the arc top plate is cylindrical, a part of the lower portion of the arc top plate is transversely cut off, the front baffle is round, a part of the lower portion of the front baffle is cut off corresponding to the arc top plate, and the arc top plate and the front baffle are made of EVA materials. The front baffle and the arc top plate are welded together, transverse long-strip-shaped supporting strips are arranged on the left side and the right side of the arc top plate, longitudinal supporting legs are arranged in front of the arc top plate, and the arc top plate and the front baffle are formed in a spliced mode.

Description

Technical Field

[0001] The invention relates to the technical field of a device for protecting a cutting head of a fully-mechanized excavator from stopping and falling to the ground, and in particular to a protective cover for the cutting head of an ultra-light fully-mechanized excavator. Background Art

[0002] After the tunnel boring machine is finished cutting, it will land and personnel need to dig ahead to carry out support operations. At this time, if the cutting teeth of the cutting head are exposed to the outside, it will pose a potential risk of injury to the operators. The general practice is to use iron sheets or old belts to make a simple cover to cover the cutting head. This kind of shield is heavy and bulky. It needs to be lifted and transported to the back of the tunnel boring machine when the tunnel boring machine is working, which is very inconvenient. During multiple cycles of operation, personnel are required to carry it back and forth, which consumes the physical strength of the employees. Since the cutting teeth are in direct contact with the shield, the shield made of iron or old belts is very fragile and cannot provide effective protection. And because it is inconvenient to carry, during the construction process, it is often used improperly or even not used, which increases the risk of injury from the cutting teeth of the cutting head. Summary of the invention

[0003] The invention provides an ultra-lightweight cutting head protective cover for a comprehensive excavator, which is used to shield and protect the cutting head when the cutting head of the comprehensive excavator stops operating to support a tunnel, so as to prevent the drill bit from causing harm to operators.

[0004] To achieve the above object, the present invention is implemented by the following technical solutions:

[0005] The present invention proposes a shield for the cutting head of an ultra-light comprehensive excavator. The shield is arranged on the outside of the cutting head and comprises an arc top plate and a front baffle. The arc top plate is cylindrical, and a part of its lower part is cut out transversely. The front baffle is circular, and a part of its lower part is cut out corresponding to the arc top plate. The front baffle blocks the cylindrical arc top plate. The shield completely covers the cutting head of the ultra-light comprehensive excavator. The circular hole at the rear end of the arc top plate is the connecting part of the cutting head of the ultra-light comprehensive excavator. The bottom is also on the ground with the cutting head of the comprehensive excavator. The arc top plate shields the front end of the cutting head of the ultra-light comprehensive excavator.

[0006] The material used for the arc top plate and the front baffle is EVA material.

[0007] According to the ultra-lightweight excavator cutting head guard, the front baffle plate is welded to the arc top plate.

[0008] According to the ultra-lightweight tunnel boring machine cutting head guard, transverse long strip support strips 3 are provided on the left and right sides of the circular arc top plate.

[0009] According to the ultra-lightweight excavator cutting head guard, a longitudinal support leg 4 is provided at the bottom in front of the circular arc top plate to isolate the circular arc top plate from the ground.

[0010] According to the ultra-lightweight excavator cutting head shield, the EVA material is anti-static EVA material.

[0011] According to the ultra-lightweight excavator cutting head guard, the arc top plate and the front baffle are formed by disassembly and splicing.

[0012] According to the ultra-lightweight mining machine cutting head guard, reflective strips fixed at intervals are provided above the circular arc top plate, and the reflective strips are yellow.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The arc design fits the cutting head of the excavator better, saves more space and materials than the square design, and greatly improves the space utilization rate. The arc has high strength and can provide more effective protection for the cutting head than the square design;

[0015] The whole is made of EVA material, which is a new type of environmentally friendly plastic foam material that takes into account both environmental protection and lightness. The weight of the shield is greatly reduced compared with the original one, and the material is softer than before, which can better protect the surrounding workers. Through on-site use, good results have been achieved; the product is light, which reduces the weight during transportation, thereby greatly reducing the work intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] A patent application with the invention name "An ultra-lightweight excavator cutting head guard" includes two drawings in its specification, and the drawings of these drawings are described as follows.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is the front view of the present invention.

[0019] In the figure: 1. Arc top plate, 2. Front baffle, 3. Support strip, 4. Support leg. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] like Figure 1 or Figure 2As shown, the present invention proposes a cutting head shield for an ultra-lightweight comprehensive excavator, which is arranged on the outside of the cutting head and includes an arc top plate 1 and a front baffle plate 2. The arc top plate 1 is cylindrical, and a part of its lower part is cut off horizontally, and the front baffle plate 2 is circular, and a part of its lower part is cut off corresponding to the arc top plate 1.

[0022] The front baffle 2 blocks the cylindrical arc top plate 1, and the shield completely covers the cutting head of the ultra-light multi-purpose excavator. The circular hole at the rear end of the arc top plate 1 is the connecting part of the cutting head of the ultra-light multi-purpose excavator. The bottom is also on the ground with the cutting head of the multi-purpose excavator. The arc top plate 1 blocks the front end of the cutting head of the ultra-light multi-purpose excavator.

[0023] When in use, the cutting head of the ultralight excavator is placed on the ground, and the cutting head of the ultralight excavator is inserted from the hole end of the arc top plate 1 until the cutting head of the ultralight excavator is completely blocked by the top of the arc top plate 1. The front baffle 2 blocks the front end of the cutting head of the ultralight excavator.

[0024] The material used for the arc top plate 1 and the front baffle 2 is EVA material; the front baffle 2 and the arc top plate 1 are fixed together by welding, and horizontal long strip support strips 3 are provided on the left and right sides of the arc top plate 1, and longitudinal support legs 4 are provided in front of the arc top plate.

[0025] The longitudinal support legs 4 and the support strips isolate and raise the device from the ground, and a gap is formed at the bottom to facilitate operation and taking when removing.

[0026] EVA material uses anti-static EVA material to match the working conditions in the alley.

[0027] In order to enhance warning, yellow reflective strips are fixed at intervals above the arc top plate to warn operators against accidentally stepping on or touching them.

[0028] This device is manufactured by measuring the outer dimensions of the cutting head, optimizing the outer design of the protective cover, and adopting a reasonable decomposition and splicing method. It has the advantages of being ultra-light, wear-resistant, well-fitting, and having a good protective effect. The weight of the protective cover is greatly reduced compared to the original one, and the material is softer than before, which can better play a protective effect. Through on-site use, it has achieved good results and received unanimous praise from employees, and has a high promotion value.

[0029] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned implementation cases, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ultra-lightweight excavator cutting head guard, characterized in that: The protective cover is arranged on the outside of the cutting head, and comprises an arc top plate (1) and a front baffle (2); the arc top plate (1) is cylindrical, and a portion of its lower part is cut out transversely; the front baffle (2) is circular, and a portion of its lower part is cut out corresponding to the arc top plate (1); the front baffle (2) blocks the cylindrical arc top plate (1); the protective cover completely covers the cutting head of the ultra-light comprehensive excavator; the circular hole at the rear end of the arc top plate (1) is the connection part of the cutting head of the ultra-light comprehensive excavator; the bottom is on the ground together with the cutting head of the comprehensive excavator; the arc top plate (1) blocks the front end of the cutting head of the ultra-light comprehensive excavator; The material used for the arc top plate (1) and the front baffle plate (2) is EVA material.

2. The ultra-lightweight excavator cutting head guard according to claim 1, characterized in that: The front baffle plate (2) and the arc top plate (1) are welded together.

3. The ultra-lightweight excavator cutting head guard according to claim 1, characterized in that: The left and right sides of the arc top plate (1) are provided with transverse long strip-shaped support strips (3).

4. The ultra-lightweight excavator cutting head guard according to claim 1, characterized in that: The bottom of the front of the arc top plate (1) is provided with longitudinal support legs (4) to isolate the arc top plate (1) from the ground.

5. The ultra-lightweight excavator cutting head guard according to claim 1, characterized in that: EVA material: Anti-static EVA material is used.

6. The ultra-lightweight excavator cutting head guard according to claim 1, characterized in that: The arc top plate (1) and the front baffle plate (2) are formed by being disassembled and spliced.

7. The ultra-lightweight excavator cutting head guard according to claim 1, characterized in that: Reflective strips are arranged at fixed intervals above the arc top plate (1), and the reflective strips are yellow in color.

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