Cutting roller tooth holder of miner-bolter

Abstract

The utility model discloses a cutting roller tooth holder of a digging and anchoring machine, which relates to the technical field of digging machinery and comprises a roller body. The roller tooth holder is spirally distributed on the roller body, and an inner hole is formed in the roller tooth holder; the cutting teeth are mounted on the roller tooth holder, and the orientation of the tooth tips of the cutting teeth is the same as the rotation direction of the roller body; the wear-resistant layer is welded on the outer wall of the roller tooth holder, and the wear-resistant layer is arranged along the appearance of the roller tooth holder in a grid form. According to the utility model, the grid type wear-resistant layer is welded on the outer wall of the tooth holder along the appearance, so that the wear resistance of the tooth holder is improved, the phenomena of welding deformation and thermal hardening of the tooth sleeve are reduced, and the appearance quality and uniformity of products are greatly improved by adopting a robot welding mode.

Description

Technical Field

[0001] This utility model relates to the field of excavating machinery technology, and in particular to a cutting roller tooth seat for a tunneling and anchoring machine. Background Technology

[0002] The way the drum cutting system cuts into the coal wall is by cutting directly into the coal wall from the front. The wear pattern of the tooth holder without tilt angle is basically the same. Under normal replacement of the failed cutting tooth, the wear of the tooth holder is small.

[0003] Due to changes in geological conditions, the fast excavation face where the roadheader is located has gradually encountered cutting and interbedded rock, as well as white sandstone and faults. As more and more highly abrasive material is dropped, the wear on the tooth seats has gradually increased, which has affected the normal service life of the roadheader's drum.

[0004] To improve the wear resistance of gear seats, some manufacturers currently use a process of fully welding a wear-resistant layer onto the outer wall of the gear seat. However, after the wear-resistant layer is fully welded, deformation of the inner hole of the gear sleeve and heat hardening of the gear sleeve often occur. Deformation of the inner hole of the gear sleeve can prevent the cutting teeth from being installed properly, and heat hardening of the gear sleeve can cause the mushroom head to break or crack during use. Utility Model Content

[0005] The main objective of this invention is to provide a cutting drum tooth seat for a tunneling and anchoring machine. By welding a mesh-like wear-resistant layer along the outer shape of the tooth seat and using robotic welding, the problems in the prior art can be effectively solved.

[0006] To achieve the above objectives, this utility model provides a cutting drum tooth seat for a tunneling and anchoring machine, comprising a drum body, a drum tooth seat, cutting teeth, and a wear-resistant layer;

[0007] The roller tooth seats are spirally distributed on the roller body, and the roller tooth seats are provided with inner holes;

[0008] The cutting teeth are mounted on the roller tooth holder, and the tooth tips of the cutting teeth face the same direction as the rotation of the roller body;

[0009] The wear-resistant layer is welded to the outer wall of the roller tooth holder, and the wear-resistant layer is arranged in a grid pattern along the outer shape of the roller tooth holder.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the arrangement structure of the drum body is a horizontal axis type.

[0012] Furthermore, the wear-resistant layer is welded using robotic welding.

[0013] Furthermore, the thickness of the wear-resistant layer is between 3 and 5 mm.

[0014] Furthermore, the width of the wear-resistant layer is between 8 and 10 mm.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a cutting roller tooth seat for a roadheader, which has the following advantages:

[0016] 1. This utility model improves the wear resistance of the roller tooth holder by welding a mesh-like wear-resistant layer along the outer wall of the roller tooth holder, while reducing welding deformation and heat-hardening of the tooth sleeve. This does not affect the installation of the cutting teeth and solves the problem of the existing process of fully welding the wear-resistant layer on the outer wall of the roller tooth holder, which often results in inner hole deformation and heat hardening of the tooth sleeve after the full welding of the wear-resistant layer.

[0017] 2. This utility model uses robotic welding to weld the wear-resistant layer, which greatly improves the appearance quality and uniformity of the product.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the cutting roller tooth seat in a tunneling and anchoring machine according to the present invention.

[0021] Figure 2 This is a schematic diagram showing the distribution of the roller tooth holders on the roller body in a cutting roller tooth holder of a tunneling and anchoring machine, as proposed in this utility model.

[0022] In the diagram: 1. Roller body; 2. Roller tooth seat; 3. Cutting tooth; 4. Inner hole; 5. Wear-resistant layer. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-2 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is described as "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1-2 As shown, this utility model provides a cutting drum tooth seat for a tunneling and anchoring machine, including a drum body 1, a drum tooth seat 2, cutting teeth 3, and a wear-resistant layer 5;

[0027] The arrangement structure of the drum body 1 is a horizontal axis type;

[0028] The roller tooth holder 2 is spirally distributed on the roller body 1, and the roller tooth holder 2 is provided with an inner hole 4 for installing the cutting tooth 3;

[0029] The cutting tooth 3 is mounted on the roller tooth seat 2, and the tooth tip of the cutting tooth 3 faces the same direction as the rotation direction of the roller body 1.

[0030] The wear-resistant layer 5 is welded to the outer wall of the roller tooth seat 2. The wear-resistant layer 5 is arranged in a grid pattern along the outer shape of the roller tooth seat 2. The thickness of the wear-resistant layer 5 is between 3-5mm and the width is between 8-10mm. The wear-resistant layer 5 is welded by robotic welding, which greatly improves the appearance quality and uniformity of the product.

[0031] By welding a mesh-like wear-resistant layer 5 along the outer shape of the outer wall of the roller tooth holder 2, the wear resistance of the roller tooth holder 2 is improved, while the phenomenon of welding deformation and heat-hardening of the tooth sleeve is reduced. This does not affect the installation of the cutting tooth 3. It solves the problem that the existing process of fully welding the wear-resistant layer 5 on the outer wall of the roller tooth holder 2 often results in deformation of the inner hole 4 and heat hardening of the tooth sleeve after the full welding of the wear-resistant layer.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A cutting roller toothed seat for a roadheader, characterized in that, include: Drum body (1); The roller tooth seat (2) is spirally distributed on the roller body (1), and the roller tooth seat (2) is provided with an inner hole (4); Cutting teeth (3) are mounted on the roller tooth seat (2), and the tooth tips of the cutting teeth (3) face the same direction as the rotation of the roller body (1). Wear-resistant layer (5) is welded to the outer wall of the roller tooth seat (2) and the wear-resistant layer (5) is arranged in a grid pattern along the outer shape of the roller tooth seat (2).

2. The cutting roller toothed seat of a roadheader according to claim 1, characterized in that, The arrangement structure of the drum body (1) is a horizontal axis type.

3. The cutting roller toothed seat of a roadheader according to claim 1, characterized in that, The wear-resistant layer (5) is welded using robotic welding.

4. The cutting roller toothed seat of a roadheader according to claim 1, characterized in that, The thickness of the wear-resistant layer (5) is between 3 and 5 mm.

5. The cutting roller toothed seat of a roadheader according to claim 1, characterized in that, The width of the wear-resistant layer (5) is between 8 and 10 mm.

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