Detachable hob cutting structure of miner-bolter

Abstract

The utility model discloses a detachable hob cutting structure of a digging and anchoring machine, which comprises a barrel and a plurality of disc-shaped cutter head structures, and the disc-shaped cutter head structures are spirally and detachably arranged on the outer wall of the barrel. Inclined detachable disc-shaped tool bit structures are arranged at the two ends of the cylinder body respectively; the disc-shaped cutter head structure comprises a mounting frame, a cutter shaft and a hobbing cutter, and the mounting frame is a U-shaped frame; the cutter shaft is arranged on the mounting frame; and the hobbing cutter is rotatably arranged on the cutter shaft. According to the utility model, the hob is used for grinding and breaking the rock wall, so that the safety and the reliability of the miner-bolter are improved, and the risk that the hob is broken due to the fact that the rock cannot be cut is avoided; the mode of cutting the rock wall by the hob is similar to a line surface breaking mode, so that the abrasion loss of the hob caused by the rock wall is reduced, the abrasion resistance of the hob is enhanced, and the service life of the hob is greatly prolonged; by arranging the detachable disc-shaped tool bit structure, only the damaged disc-shaped tool bit structure can be replaced in a targeted manner, so that the subsequent maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anchor machine drilling technology, especially to a detachable disc cutter cutting structure of anchor machine. BACKGROUND

[0002] As indispensable mining equipment in underground engineering such as mine and tunnel, the design and performance of the cutting system, one of the core components of anchor machine, are directly related to the working efficiency and service life of the equipment. The traditional anchor machine cutting system is mainly divided into two types: blade tooth cutting system and pick tooth cutting system.

[0003] Both of the two systems have significant deficiencies when facing complex geological conditions: the blade tooth cutting system contains fixed blade teeth and tooth seats, and the blade teeth are installed on the tooth seats and cannot rotate. This design makes the blade teeth prone to break frequently when encountering hard dirt band or half coal rock, fault and other geological conditions, affecting the working efficiency and safety of the equipment.

[0004] The pick tooth in the pick tooth cutting system can rotate freely, which makes it perform better in dealing with the above complex geological conditions. However, the principle of the pick tooth is to break the surface with a point, which has strong rock breaking ability but also leads to high pick tooth wear rate. For example, under the extreme geological conditions of rock hardness F≥8 and rock content ≥30%, the pick tooth wears faster and the consumption increases sharply.

[0005] In summary, the existing blade tooth and pick tooth cutting systems face different degrees of technical challenges when dealing with high hardness and high content rock working faces in underground mines. For anchor machines, how to improve their cutting ability and wear resistance in high hardness rock environment has become a problem to be solved. SUMMARY

[0006] The utility model aims at solving one of the above technical problems at least to some extent.

[0007] To achieve the above purpose, the utility model discloses a detachable disc cutter cutting structure of anchor machine, which comprises a cylinder and a disc-shaped cutter head structure. The disc-shaped cutter head structures are arranged in a spiral manner on the outer wall of the cylinder. The cylinder is provided with inclined detachable disc-shaped cutter head structures at both ends. The disc-shaped cutter head structure comprises a mounting bracket, a cutter shaft and a disc cutter. The mounting bracket is a U-shaped bracket. The cutter shaft is arranged on the mounting bracket. The disc cutter is rotatably arranged on the cutter shaft.

[0008] In addition, the detachable disc cutter cutting structure of anchor machine according to the utility model can have the following additional technical features:

[0009] As a further description of the above technical solution: the disc-shaped cutter head structure mounted at the end of the barrel body, the hobbing cutter is inclined outwardly away from the barrel body.

[0010] As a further description of the above technical solution: the number of disc-shaped cutter head structures mounted at the end of the barrel body ranges from 10 to 14, and is sequentially spaced.

[0011] As a further description of the above technical solution: the hobbing cutter of the disc-shaped cutter head structure mounted on the outer wall of the barrel body is perpendicular to the axial direction of the barrel body.

[0012] As a further description of the above technical solution: the hobbing cutter surface is coated with a wear-resistant coating.

[0013] As a further description of the above technical solution: the angle between the hobbing cutter mounted at the end of the barrel body and the axial direction of the barrel body is 45 degrees.

[0014] As a further description of the above technical solution: the mounting frame is detachably connected to the outer wall of the barrel body or the end of the barrel body by bolts.

[0015] The excavator and anchor machine detachable hobbing cutter cutting structure of the utility model can grind and break the rock wall by using the hobbing cutter, the hobbing cutter can rotate along the cutter shaft to offset the impact force generated when cutting hard rock, which not only can improve the safety and reliability of the excavator and anchor machine when processing high-hardness rock, but also avoids the risk of breaking the hobbing cutter due to cutting immobile rock; the way of cutting the rock wall by the hobbing cutter is similar to "line breaking surface", which reduces the wear amount of the rock wall to the hobbing cutter, thereby enhancing the wear resistance of the hobbing cutter and greatly prolonging the service life thereof; by arranging the detachable disc-shaped cutter head structure, only the damaged disc-shaped cutter head structure can be replaced, so that the subsequent maintenance cost is reduced.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, some will become apparent from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0018] Fig. 1 is a structure schematic view of the excavator and anchor machine detachable hobbing cutter cutting structure according to one embodiment of the utility model;

[0019] Fig. 2 is a front view structure schematic view of the excavator and anchor machine detachable hobbing cutter cutting structure according to one embodiment of the utility model;

[0020] Fig. 3is a schematic view of the disc-shaped cutter head structure according to an embodiment of the utility model;

[0021] As shown in the figure,

[0022] 100, barrel; 200, disc-shaped cutter head structure; 210, mounting frame; 220, cutter shaft; 230, disc cutter. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0024] The excavating and anchoring machine detachable disc cutter cutting structure of the embodiments of the utility model is described below in combination with the drawings.

[0025] As Figs. 1 to 3 shown, the excavating and anchoring machine detachable disc cutter cutting structure of the embodiments of the utility model comprises a barrel 100 and a disc-shaped cutter head structure 200.

[0026] Among them, a plurality of disc-shaped cutter head structures 200 are detachably arranged in a spiral shape on the outer wall of the barrel 100, and the two ends of the barrel 100 are respectively provided with inclined detachable disc-shaped cutter head structures 200.

[0027] The disc-shaped cutter head structure 200 comprises a mounting frame 210, a cutter shaft 220 and a disc cutter 230.

[0028] Among them, the mounting frame 210 is a U-shaped frame, the cutter shaft 220 is arranged on the mounting frame 210, and the disc cutter 230 is rotatably arranged on the cutter shaft 220.

[0029] In order to further improve the wear resistance of the disc cutter 230, the surface of the disc cutter 230 is coated with a wear-resistant coating.

[0030] Specifically, in actual application, when the excavating and anchoring machine works, power is transmitted to the cutter shaft 220 in each disc-shaped cutter head structure 200 through the barrel 100, and then drives the disc cutter 230 to rotate.

[0031] The disc cutter 230 rolls along the surface of the rock wall and applies appropriate pressure, and uses its own rotary motion to grind and break the rock wall.

[0032] Since the detachable design is adopted, once a disc-shaped cutter head structure 200 appears wear or other faults, it can be conveniently and quickly replaced individually, without replacing the entire cutting system, greatly reducing the maintenance cost and time.

[0033] As a possible case, the mounting frame 210 is detachably connected to the outer wall of the cylinder body 100 or the end of the cylinder body 100 by bolts.

[0034] When it is necessary to install the disc-shaped cutter head structure 200, the operator only needs to align the bolt holes on the mounting frame 210 with the threaded holes on the cylinder body 100, and then insert the bolts and tighten them to complete the installation; conversely, when it is necessary to replace or maintain a certain disc-shaped cutter head structure 200, only the corresponding bolts need to be loosened, and the component can be easily removed for repair or replacement.

[0035] In an embodiment of the present application, the disc-shaped cutter head structure 200 mounted at the end of the cylinder body 100 has the hob 230 inclined outwardly away from the cylinder body 100, and the cutting surface or working surface of the hob 230 is outwardly directed, so that the hob 230 can directly contact and act on the target surface, ensuring that the cutting force can be effectively transmitted to the object to be cut, thereby improving the cutting efficiency, and the inclined design of the hob 230 is to form a more favorable cutting angle during rotation, which helps to reduce the resistance when cutting in, and can produce a certain cutting effect on the cutting surface, further improving the cutting performance. At the same time, the angle of inclination also helps to discharge the debris generated during cutting to prevent clogging and affect cutting efficiency.

[0036] In addition, the number of disc-shaped cutter head structures 200 mounted at the end of the cylinder body 100 ranges from 10 to 14, and they are arranged in sequence and at intervals. By reasonably arranging the position of each disc-shaped cutter head, the force distribution during the entire cutting process can be more balanced, avoiding damage to the equipment or a decrease in work efficiency due to excessive local stress, and the disc-shaped cutter heads arranged at intervals can form a relatively smooth and continuous cutting path during continuous rotation, which is conducive to achieving more precise and efficient cutting operations.

[0037] As a possible case, the hobs 230 mounted at the end of the cylinder body 100 form an angle of 45 degrees with the axial direction of the cylinder body 100.

[0038] In an embodiment of the present application, the hobs 230 of the disc-shaped cutter head structure 200 mounted on the outer wall of the cylinder body 100 are perpendicular to the axial direction of the cylinder body 100.

[0039] It should be noted that since the hobs 230 are arranged perpendicular to the axis of the cylinder body 100, they will form a radial cutting path during rotation, which helps to achieve a more linear cutting action and is suitable for application scenarios that require precise control of cutting depth and width.

[0040] When the cutter 230 is installed perpendicular to the axis direction of the barrel 100, it is helpful to maintain the structural stability of the entire device, because in this layout, all the acting forces are mainly concentrated in the direction along the axis of the barrel 100, rather than generating lateral or torsional load, which is conducive to maintaining the stable operation of the system.

[0041] In summary, the excavator and anchor machine detachable cutter cutting structure according to the embodiment of the utility model, by using the cutter 230 to grind and break the rock wall, the cutter 230 can rotate along the cutter shaft 220 to offset the impact force generated when cutting hard rock, not only can improve the safety and reliability of the excavator and anchor machine when processing high hardness rock, but also avoid the risk of breaking the cutter 230 due to cutting immovable rock; The way of cutting the rock wall by the cutter 230 is similar to “line breaking surface”, which reduces the wear amount of the rock wall on the cutter 230, thereby enhancing the wear resistance of the cutter 230 and greatly prolonging its service life; By setting the detachable disc-shaped cutter head structure 200, only the damaged disc-shaped cutter head structure 200 can be replaced, so as to reduce the subsequent maintenance cost.

[0042] In the description of the present specification, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0043] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0044] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A detachable roller cutter cutting structure for a roadheader, characterized in that, include: The cylindrical body (100) and the disc-shaped cutter head structure (200), wherein, Multiple disc-shaped cutter head structures (200) are arranged in a spiral and detachably on the outer wall of the cylinder (100); The cylindrical body (100) is provided with inclined and detachable disc-shaped cutter head structures (200) at both ends. The disc-shaped cutter head structure (200) includes a mounting bracket (210), a cutter shaft (220), and a hob (230), wherein, The mounting bracket (210) is a U-shaped bracket; The cutter shaft (220) is mounted on the mounting bracket (210); The hobbing cutter (230) is rotatably mounted on the cutter shaft (220); The mounting bracket (210) is detachably connected to the outer wall of the cylinder (100) or the end of the cylinder (100) by bolts.

2. The detachable roller cutter cutting structure for a roadheader as described in claim 1, characterized in that, The disc-shaped cutter head structure (200) installed at the end of the cylinder (100) has its hobbing cutter (230) facing away from the cylinder (100) and tilted outward.

3. The detachable roller cutter cutting structure for a roadheader as described in claim 1, characterized in that, The number of disc-shaped cutter head structures (200) installed at the end of the cylinder (100) ranges from 10 to 14, and they are arranged at intervals.

4. The detachable roller cutter cutting structure for a roadheader as described in claim 1, characterized in that, The hob (230) of the disc-shaped cutter head structure (200) installed on the outer wall of the cylinder (100) is perpendicular to the axial direction of the cylinder (100).

5. The detachable roller cutter cutting structure for a roadheader according to claim 1, characterized in that, The surface of the hob (230) is coated with a wear-resistant coating.

6. The detachable roller cutter cutting structure for a roadheader according to claim 1, characterized in that, The axial angle between the cutter (230) installed at the end of the cylinder (100) and the cylinder (100) is 45 degrees.

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