Cutting pick for mine mining machine

Abstract

The utility model discloses a cutting pick for a mine mining machine, which comprises a main body, the main body comprises a mounting rod, the lower surface of the mounting rod is fixedly connected with a cutting pick block, and the outer surface of the main body is provided with a protective coating; a mounting groove is formed in the outer surface of the mounting rod, and an electric telescopic rod is fixedly connected to the inner wall of the mounting groove. According to the cutting pick for the mine mining machine, through the arrangement of the main body, the mounting rod, the inclined plate clamping block and the electric telescopic rod, when the main body and equipment need to be installed, the mounting rod is in butt joint with the main shaft, then the main body is inserted into the main shaft, and through the arrangement of the electric telescopic rod, the inclined plate clamping block can be pushed to stretch out and draw back; and the inclined plate clamping blocks can be in butt joint with the clamping grooves in the inner wall of the main shaft, so that the main body can be fixedly mounted, and when the main body needs to be taken out, the electric telescopic rods can drive the inclined plate clamping blocks to retract, so that the main body can be conveniently taken out from the main shaft.

Description

Technical Field

[0001] This utility model relates to the field of mining excavator technology, and in particular to a cutting tooth for a mining excavator. Background Technology

[0002] In modern coal mining, excavators are typically used. An excavator generally consists of an excavating arm and a drum mounted on the excavating arm. The drum is equipped with multiple cutting teeth. When the excavator is working, the drum rotates, and the cutting teeth rotate with the drum. The cutting teeth continuously rub and collide with the coal seam and rock strata, causing them to fracture and thus achieving the cutting effect. During the friction and collision between the cutting teeth and the coal seam and rock strata, the cutting teeth will inevitably be worn. To improve the wear resistance of the cutting teeth, the cutting head is usually made of a material with high hardness. Specifically, the root of the cutting head is inserted into the mounting part on the cutting tooth and welded to the mounting part, while the head of the cutting head extends outward to contact hard objects such as rocks.

[0003] However, when one side of the cut-off point is hit by a hard object, it will cause tilting force, which will make the cutting tooth unstable. At the same time, after long-term use, the surface of the cutting tooth will wear down, resulting in poor corrosion resistance and affecting service life. Therefore, it is necessary to design a cutting tooth for mining excavators. Utility Model Content

[0004] The main purpose of this utility model is to provide a cutting tooth for mining excavators, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A cutting tooth for a mining excavator includes a main body, the main body including a mounting rod, a cutting tooth block fixedly connected to the lower surface of the mounting rod, and a protective coating on the outer surface of the main body; the outer surface of the mounting rod has a mounting groove, an electric telescopic rod fixedly connected to the inner wall of the mounting groove, and a slanted plate block fixedly connected to one end of the electric telescopic rod.

[0007] The present invention is further configured such that: the protective coating includes a hard alloy coating, and a ceramic coating is fixedly connected to the outer surface of the hard alloy coating.

[0008] By adopting the above technical solution and applying a hard alloy coating, excellent wear resistance is provided, and friction between the object and the wear material is reduced.

[0009] The present invention is further configured such that a wear-resistant coating is fixedly connected to the outer surface of the ceramic coating.

[0010] By adopting the above technical solution and applying a wear-resistant coating, the coefficient of friction is reduced, effectively reducing wear and improving corrosion resistance.

[0011] The present invention is further configured such that a zinc coating is fixedly connected to the outer surface of the wear-resistant coating.

[0012] By adopting the above technical solution, good corrosion resistance is provided through the setting of zinc coating, and the steel is protected by sacrificial anode.

[0013] The present invention is further configured such that a fluorinated coating is fixedly connected to the outer surface of the zinc coating.

[0014] By adopting the above technical solution and applying a fluorinated coating, corrosion resistance is enhanced, while low friction characteristics are also achieved.

[0015] The present invention is further configured such that a phosphate coating is fixedly connected to the outer surface of the fluorinated coating.

[0016] By adopting the above technical solution, a phosphate protective layer is formed on the metal surface through the application of a phosphate coating, thereby further enhancing the corrosion resistance.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this utility model, by setting up a main body, a mounting rod, an inclined plate clamping block, and an electric telescopic rod, when it is necessary to install the main body with the equipment, the mounting rod is connected to the main shaft, and then the main body is inserted into the main shaft. By setting up an electric telescopic rod, the inclined plate clamping block can be pushed to extend and retract, and the inclined plate clamping block can be connected to the groove on the inner wall of the main shaft, thereby achieving the purpose of fixing the main body. When it is necessary to remove the main body, the electric telescopic rod can drive the inclined plate clamping block to retract, thereby facilitating the removal of the main body from the main shaft.

[0019] 2. In this utility model, the application of a cemented carbide coating, a ceramic coating, a wear-resistant coating, a zinc plating coating, and a phosphate coating provides excellent wear resistance and reduces friction between the object and the wear material. Spraying or coating the surface of the cutting tooth with cemented carbide material can effectively extend its service life. The ceramic coating provides high hardness and chemical stability, resisting high temperatures and chemical corrosion. The ceramic coating is applied to the surface of the cutting tooth using vapor deposition or plasma spraying technology. The wear-resistant coating reduces the coefficient of friction, effectively reducing wear, while simultaneously improving corrosion resistance and freezing properties. Alternatively, PTFE or other polymer materials can be spray-coated to form a smooth surface, reducing the adhesion of objects. A zinc coating provides excellent corrosion resistance. Sacrificial anodes protect the steel. A zinc layer is formed on the cutting tooth surface through hot-dip galvanizing or spray galvanizing. A fluorinated coating enhances corrosion resistance and provides low-friction properties. A chemical fluorination process applies a fluoride coating to the cutting tooth surface to improve chemical corrosion resistance. A phosphate coating forms a phosphate protective layer on the metal surface, further enhancing corrosion resistance. A phosphate solution is sprayed or impregnated onto the surface to form a protective layer. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present utility model;

[0021] Figure 2 This is a schematic diagram of the mounting rod structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the protective coating structure of this utility model.

[0023] In the diagram: 1. Main body; 2. Mounting rod; 3. Cutting tooth block; 4. Protective coating; 5. Mounting groove; 6. Electric telescopic rod; 7. Inclined plate block; 8. Hard alloy coating; 9. Ceramic coating; 10. Wear-resistant coating; 11. Zinc coating; 12. Fluoride coating; 13. Phosphate coating. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-3 As shown, a cutting tooth for a mining excavator includes a main body 1, the main body 1 includes a mounting rod 2, a cutting tooth block 3 is fixedly connected to the lower surface of the mounting rod 2, and a protective coating 4 is provided on the outer surface of the main body 1.

[0026] In this embodiment, the outer surface of the mounting rod 2 has a mounting groove 5, the inner wall of the mounting groove 5 is fixedly connected to an electric telescopic rod 6, and one end of the electric telescopic rod 6 is fixedly connected to an inclined plate block 7.

[0027] In practical use, when it is necessary to install the main body 1 with the equipment, the mounting rod 2 is connected to the main shaft, and then the main body 1 is inserted into the main shaft. Through the setting of the electric telescopic rod 6, the inclined plate block 7 can be pushed to extend and retract, and the inclined plate block 7 can be connected with the slot on the inner wall of the main shaft, so that the main body 1 can be fixedly installed. When it is necessary to remove the main body 1, the electric telescopic rod 6 can drive the inclined plate block 7 to retract, so that the main body 1 can be easily removed from the main shaft.

[0028] In this embodiment, the protective coating 4 includes a hard alloy coating 8, and a ceramic coating 9 is fixedly connected to the outer surface of the hard alloy coating 8.

[0029] In practical applications, the cemented carbide coating 8 provides excellent wear resistance and reduces friction between the object and the wear material. Spraying or coating cemented carbide on the surface of the cutting tooth can effectively extend its service life. The ceramic coating 9 provides high hardness and chemical stability, resisting high temperature and chemical corrosion. The ceramic coating 9 is applied to the surface of the cutting tooth through vapor deposition or plasma spraying technology.

[0030] In this embodiment, a wear-resistant coating 10 is fixedly connected to the outer surface of the ceramic coating 9.

[0031] In practical applications, the wear-resistant coating 10 reduces the coefficient of friction, effectively minimizing wear, while also improving corrosion resistance. It can be used to freeze or spray-coat polymer materials such as PTFE to form a smooth surface and reduce the adhesion of objects.

[0032] In this embodiment, a zinc coating 11 is fixedly connected to the outer surface of the wear-resistant coating 10.

[0033] In practical use, the zinc coating 11 provides good corrosion resistance, the steel is protected by sacrificial anodes, and a zinc layer is formed on the surface of the cutting teeth by hot-dip galvanizing or spray galvanizing.

[0034] In this embodiment, a fluorinated coating 12 is fixedly connected to the outer surface of the zinc coating 11.

[0035] In practical applications, the fluorinated coating 12 enhances corrosion resistance and provides low friction characteristics. The fluorinated coating is applied to the surface of the cutting teeth through a chemical fluorination process, thereby improving its resistance to chemical corrosion.

[0036] In this embodiment, a phosphate coating 13 is fixedly connected to the outer surface of the fluorinated coating 12.

[0037] In practical applications, the phosphate coating 13 forms a phosphate protective layer on the metal surface, further enhancing corrosion resistance. The phosphate solution is sprayed or impregnated onto the surface to form a protective layer.

[0038] Working Principle: During use, when installing the main body 1 with the equipment, the mounting rod 2 is aligned with the spindle, and then the main body 1 is inserted into the spindle. The electric telescopic rod 6 pushes the inclined plate block 7 to extend and retract, and the inclined plate block 7 aligns with the groove on the inner wall of the spindle, thus securing the main body 1 in place. When it is necessary to remove the main body 1, the electric telescopic rod 6 retracts the inclined plate block 7, allowing for easy removal of the main body 1 from the spindle. The hard alloy coating 8 provides excellent wear resistance, reducing friction between the object and the abrasive material. Spraying or coating the surface of the cutting teeth with hard alloy material effectively extends service life. The ceramic coating 9 provides high hardness and chemical stability, resisting high temperatures and chemical corrosion. Ceramic coating 9 is applied to the surface of the cutting teeth using vapor deposition or plasma spraying technology. The wear-resistant coating 10 reduces the coefficient of friction, effectively reducing wear and improving corrosion resistance. Polymer materials such as PTFE are frozen or spray-coated to form a smooth surface, reducing the adhesion of objects. The zinc coating 11 provides good corrosion resistance. The steel is protected by sacrificial anodes. A zinc layer is formed on the surface of the cutting teeth by hot-dip galvanizing or spray galvanizing. The fluorinated coating 12 enhances corrosion resistance and has low friction characteristics. The fluoride coating is applied to the surface of the cutting teeth through a chemical fluorination process to improve chemical corrosion resistance. The phosphate coating 13 forms a phosphate protective layer on the metal surface, further enhancing corrosion resistance. The phosphate solution is sprayed or impregnated on the surface to form a protective layer.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pick for a mine extraction machine comprising a body (1), characterised in that: The main body (1) comprises a mounting rod (2), the lower surface of the mounting rod (2) is fixedly connected with a cutting tooth block (3), and the outer surface of the main body (1) is provided with a protective coating (4); An installation groove (5) is formed in the outer surface of the mounting rod (2), the inner wall of the installation groove (5) is fixedly connected with an electric telescopic rod (6), and one end of the electric telescopic rod (6) is fixedly connected with an inclined plate clamping block (7).

2. A pick for a mining machine according to claim 1, characterized in that: The protective coating (4) comprises a hard alloy coating (8), and the outer surface of the hard alloy coating (8) is fixedly connected with a ceramic coating (9).

3. A pick for a mining machine according to claim 2, characterized in that: The outer surface of the ceramic coating (9) is fixedly connected with a wear-resistant coating (10).

4. A pick for a mining machine according to claim 3, characterized in that: The outer surface of the wear-resistant coating (10) is fixedly connected with a zinc coating (11).

5. A pick for a mining machine according to claim 4, characterized in that: The outer surface of the zinc coating (11) is fixedly connected with a fluorinated coating (12).

6. A pick for a mining machine according to claim 5, characterized in that: The outer surface of the fluorinated coating (12) is fixedly connected with a phosphate coating (13).

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