High-strength topsoil loosening machine tooth head

Abstract

The utility model relates to a high-strength topsoil loosening machine tooth head which comprises a blocky loosening machine tooth head body, the front end of the top face of the loosening machine tooth head body is recessed inwards to form an installation groove, a hard alloy layer is embedded and welded in the installation groove to serve as a working head, and the position, located on the top face of the loosening machine tooth head body, behind the working head inclines downwards. The top face and the bottom face of the tail portion are concave inwards to form an upper assembling groove and a lower assembling groove, a limiting protruding block is arranged in the lower assembling groove and located below the tail portion, a bolt hole penetrating through the loosening machine tooth head body is formed in the limiting protruding block, and a topsoil loosening machine is clamped with the limiting clamping block after being inserted into the tail portion of the loosening machine tooth head body. And bolts are inserted into the bolt holes, so that the loosening machine tooth head body and the surface soil loosening machine are connected and fixed. The utility model has the advantages of simple structure, convenience in installation and use, good firmness, reasonable structure, high hardness and high wear resistance, greatly improved working efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of topsoil loosening machines, and in particular relates to a high-strength tooth head of a topsoil loosening machine. Background Art

[0002] The tooth head of the topsoil loosening machine mainly utilizes multiple hard teeth to directly contact the soil and loosen the topsoil. Although most of the soil is soft, there are some hard soil and gravel mixed in the soft soil. Therefore, the teeth of the loosening machine need a certain hardness, especially the surface that contacts the soil; however, since the material used for the existing head is steel material, it is easy to be non-wear-resistant during use, and the teeth need to be replaced frequently, which affects the progress of work and increases the cost of use. In addition, during use, the strong vibration generated during operation will also cause the connection between the tooth head and the topsoil loosening machine knife seat to loosen, which not only affects the work efficiency, but also causes safety hazards to a certain extent. For this reason, a high-strength topsoil loosening machine tooth head is designed to overcome the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a high-strength soil loosening machine tooth head which has a simple and reasonable structure, is easy to install and use, has good firmness, is highly wear-resistant and impact-resistant, and greatly improves work efficiency.

[0004] The utility model is realized through the following technical scheme: a high-strength loosening machine tooth head, comprising a block-shaped loosening machine tooth head body, the front end of the top surface of the loosening machine tooth head body is recessed inward to form a mounting groove, a hard alloy layer is embedded and welded in the mounting groove as a working head, the top surface of the loosening machine tooth head body located behind the working head is inclined downward to form an oblique tail, the top and bottom surfaces of the tail are recessed inward to form two upper and lower assembly grooves, a limiting protrusion is arranged below the tail in the lower assembly groove, a bolt hole penetrating the loosening machine tooth head body is arranged on the limiting protrusion, after the loosening machine is inserted into the tail of the loosening machine tooth head body, it is engaged with the limiting protrusion, and then the bolt is inserted into the bolt hole to realize the connection and fixation between the loosening machine tooth head body and the topsoil loosening machine knife seat.

[0005] Preferably, the limiting protrusion is a semicircular structure, and a bolt hole is arranged in the middle position of the limiting protrusion, and the bolt hole consists of a circular positioning hole and a circular limiting hole opened on the positioning hole, the positioning hole and the limiting hole have the same center point and the diameter of the limiting hole is larger than the diameter of the positioning hole.

[0006] Preferably, the cemented carbide layer is composed of at least two symmetrical cemented carbide blocks, each cemented carbide block is provided with a triangular protrusion on the side away from the mounting groove, and two adjacent cemented carbide blocks are closely attached to each other, and the multiple triangular protrusions form an M-shaped spike head for facilitating breaking the soil.

[0007] Preferably, an arc-shaped slope surface is provided below the cemented carbide layer on the side of the loosening machine tooth head body away from the tail.

[0008] Preferably, the width of the slope surface on the side away from the cemented carbide layer decreases step by step to form an inverted figure-eight working surface.

[0009] The beneficial effects of the utility model are as follows:

[0010] The high-strength tooth head of the surface soil loosening machine designed by the utility model adopts a highly wear-resistant and impact-resistant hard alloy with an M-shaped spike head, thereby improving the cutting effect, and can well overcome the design deficiencies that lead to the frequent replacement of the tooth head due to the crushing of the block alloy, greatly reducing the manufacturing cost and the use cost. The bottom of the tooth head body of the utility model uses a semicircular limiting convex block and a bolt hole to ensure that the tooth head of the utility model is firmly fixed on the knife seat of the surface soil loosening machine. The utility model has the advantages of simple and reasonable structure, easy installation and use, good firmness, high wear resistance and impact resistance, and greatly improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 for Figure 1 Schematic diagram of direction A.

[0013] Figure 3 for Figure 1 Schematic diagram of direction B.

[0014] Figure 4 for Figure 1 C-direction schematic diagram. DETAILED DESCRIPTION

[0015] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments.

[0016] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal" and "vertical" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or component referred to must have a specific direction and therefore should not be understood as a limitation on the present invention.

[0017] The utility model will be described in detail below with reference to the accompanying drawings: Figure 1-3As shown, a high-strength topsoil loosening machine tooth head comprises a block-shaped loosening machine tooth head body 1, the front end of the top surface of the loosening machine tooth head body 1 is recessed inward to form a mounting groove 2, a hard alloy layer 3 is embedded and welded in the mounting groove 2 as a working head 4, and the top surface of the loosening machine tooth head body 1 located behind the working head 4 is inclined downward to form an oblique tail 5, the top and bottom surfaces of the tail 5 are recessed inward to form upper and lower assembly grooves 6, and a limiting protrusion 7 is arranged below the tail in the lower assembly groove, and a bolt hole 8 is arranged on the limiting protrusion 7 which passes through the loosening machine tooth head body. After the topsoil loosening machine is inserted into the tail 5 of the loosening machine tooth head body 1, it is engaged with the limiting protrusion 7, and then the bolt is inserted into the bolt hole 8 to realize the connection and fixation between the loosening machine tooth head body 1 and the topsoil loosening machine tool holder.

[0018] The limiting protrusion 7 is a semicircular structure, and a bolt hole 8 is arranged in the middle position of the limiting protrusion 7. The bolt hole 8 consists of a circular positioning hole 9 and a circular limiting hole 10 opened on the positioning hole 9. The positioning hole 9 and the limiting hole 10 have the same center point and the diameter of the limiting hole 10 is larger than the diameter of the positioning hole 9.

[0019] The bolt hole of the utility model is composed of a positioning hole and a limiting hole, which can play a good role in limiting and positioning. The bolt is inserted into the bolt hole and fixed through a thread, thereby ensuring the connection stability between the tooth head and the topsoil loosening machine tool seat, thereby effectively preventing the studio from shifting and improving work efficiency.

[0020] The cemented carbide layer 3 is composed of at least two symmetrical cemented carbide blocks 11, each cemented carbide block 11 is provided with a triangular protrusion 12 on one side away from the mounting groove, and two adjacent cemented carbide blocks 11 are closely attached to each other, and a plurality of triangular protrusions 12 form an M-shaped spike head 13 for convenient soil breaking. The working head of the utility model adopts a highly wear-resistant and impact-resistant cemented carbide with an M-shaped spike head, thereby improving the cutting effect, and can well overcome the design deficiencies that lead to the block alloy being broken and the frequent replacement of the tooth head, greatly reducing the manufacturing cost and the use cost.

[0021] An arc-shaped slope surface 14 is provided below the cemented carbide layer 3 and on the side of the loosening machine tooth head body 1 away from the tail 5. The width of the slope surface 14 on the side away from the cemented carbide layer 3 decreases step by step to form an inverted eight-shaped working surface 15.

[0022] The utility model has the advantages of simple and reasonable structure, convenient installation and use, good firmness, high wear resistance and impact resistance, and greatly improved work efficiency.

[0023] The specific embodiments described herein are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A high-strength soil loosening machine tooth head, comprising a block-shaped soil loosening machine tooth head body (1), characterized in that: The front end of the top surface of the loosening machine tooth head body (1) is recessed inward to form a mounting groove (2), and a hard alloy layer (3) is embedded and welded in the mounting groove (2) as a working head (4). The top surface of the loosening machine tooth head body (1) is inclined downward to form an oblique tail (5) behind the working head (4). The top surface and bottom surface of the tail (5) are both recessed inward to form two upper and lower assembly grooves (6). A limiting protrusion (7) is provided below the tail in the lower assembly groove. A bolt hole (8) is provided on the limiting protrusion (7) that passes through the loosening machine tooth head body. After the topsoil loosening machine is inserted into the tail (5) of the loosening machine tooth head body (1), it is engaged with the limiting protrusion (7), and then a bolt is inserted into the bolt hole (8) to achieve the connection and fixation between the loosening machine tooth head body (1) and the topsoil loosening machine knife seat.

2. The high-strength soil loosening machine tooth head according to claim 1, characterized in that: The limiting protrusion (7) is a semicircular structure, and a bolt hole (8) is provided in the middle position of the limiting protrusion (7). The bolt hole (8) is composed of a circular positioning hole (9) and a circular limiting hole (10) opened on the positioning hole (9). The positioning hole (9) and the limiting hole (10) have the same center point, and the diameter of the limiting hole (10) is larger than the diameter of the positioning hole (9).

3. The high-strength soil loosening machine tooth head according to claim 1, characterized in that: The hard alloy layer (3) is composed of at least two symmetrical hard alloy blocks (11), each hard alloy block (11) is provided with a triangular protrusion (12) on a side away from the installation groove, and two adjacent hard alloy blocks (11) are closely attached to each other, and the multiple triangular protrusions (12) form an M-shaped spike head (13) for facilitating soil breaking.

4. The high-strength soil loosening machine tooth head according to claim 3, characterized in that: An arc-shaped slope surface (14) is provided below the hard alloy layer (3) and on the side of the loosening machine tooth head body (1) away from the tail portion (5).

5. The high-strength soil loosening machine tooth head according to claim 4, characterized in that: The width of the slope surface (14) on the side away from the hard alloy layer (3) decreases step by step, forming an inverted figure eight-shaped working surface (15).

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