Crusher tooth

Abstract

The utility model relates to a crusher tooth which comprises a working tooth and a mounting handle, the working tooth is connected with the mounting handle through a first arc-shaped transition edge, the end part of one side, far away from the mounting handle, of the working tooth is inwards sunken to form a mounting groove, a hard alloy block is embedded and welded in the mounting groove, and the hard alloy block is partially exposed out of the mounting groove. And the width of the mounting handle is smaller than that of the working teeth, and the mounting handle is used for being inserted into a clamping groove of a tool apron of the loosening machine for limiting and assembling, so that connection and fixation between the mounting handle and the surface soil loosening machine are realized. 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 surface soil loosening machines, and in particular relates to a grinder tooth. Background Art

[0002] The topsoil loosening machine teeth mainly utilize multiple hard machine teeth to directly contact the soil and loosen the topsoil. Although most of the soil is soft soil, there are some hard soil and gravel mixed in the soft soil. Therefore, the loosening machine teeth need a certain hardness, especially the surface contacting the soil; however, since the existing machine head is made of steel material, it is easy to be non-wear-resistant during use, and the machine teeth need to be replaced frequently, which affects the progress of the work and increases the cost of use. In addition, mud and sand will splash when the topsoil is loosened and crushed. For this reason, a crusher tooth is designed to overcome the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and to provide a grinder tooth which has a simple structure, is easy to install and use, has good firmness, a reasonable structure, high hardness and high wear resistance, greatly improves work efficiency, and prevents sand from splashing during work.

[0004] The utility model is realized through the following technical scheme: a crusher tooth, comprising a working tooth and a mounting handle, wherein the working tooth and the mounting handle are connected via a first arc-shaped transition edge, an end portion of the working tooth away from the mounting handle is recessed inward to form a mounting groove, a hard alloy block is embedded and welded in the mounting groove, a portion of the hard alloy block is exposed outside the mounting groove, forming a pointed working head for crushing operations, the width of the mounting handle is smaller than the width of the working tooth, the mounting handle is used to be inserted into a slot of a loosening machine tool holder for limiting and assembly, and realizes the connection and fixation between the mounting handle and the topsoil loosening machine.

[0005] Preferably, the area of ​​the working tooth away from the mounting handle decreases step by step to form a structure that is narrow at the top and wide at the bottom. An arc-shaped slope surface obliquely pointing outward is provided on the working tooth between the limit retaining edge and the mounting groove to buffer and block splashed sewage and gravel after the working head crushing operation.

[0006] Preferably, the working tooth extends outward from one side close to the mounting handle to form at least two symmetrical limiting ribs, and a spacing is left between the two limiting ribs and the mounting handle respectively to form a limiting slot for limiting the tool holder slot.

[0007] Preferably: a protrusion is provided at the end portion of the side of the mounting handle away from the working teeth, the protrusion is connected to the mounting handle through a second arc-shaped transition edge, the protrusion is exposed from the tool holder slot after the mounting handle is inserted into the tool holder slot of the loosening machine, and a thread is provided on the outer surface of the protrusion for installing a nut to ensure the fixed connection between the mounting handle and the topsoil loosening machine.

[0008] Preferably, the installation groove of the working tooth is arranged obliquely, and the cemented carbide block embedded and welded in the installation groove is a polygonal structure.

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

[0010] The crusher teeth designed by the utility model adopt a large-sized hard alloy block with high wear resistance and high impact resistance as the working head to lead the crushing operation, which overcomes the situation that the existing mechanical tooth heads are generally made of steel materials, resulting in the structure being easily damaged and the tooth heads often need to be replaced. The working teeth of the utility model are limited and assembled by inserting the mounting handle into the tool holder slot, and are fixed and locked by the threaded matching nut on the protruding block of the mounting handle, which facilitates the disassembly and installation of the tooth head. The utility model has the advantages of reasonable structure, good firmness, easy use and installation, good firmness of the overall tooth head structure, high impact resistance and high wear 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 2 Schematic diagram of direction B. DETAILED DESCRIPTION

[0014] 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.

[0015] 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.

[0016] The utility model will be described in detail below with reference to the accompanying drawings: Figure 1-2As shown, a grinder tooth comprises a working tooth 1 and a mounting handle 2, wherein the working tooth 1 and the mounting handle 2 are connected by a first arc-shaped transition edge 3, and the end of the working tooth 1 away from the mounting handle 2 is recessed inward to form a mounting groove 4, and a hard alloy block 5 is embedded and welded in the mounting groove 4, and the hard alloy block 5 is partially exposed from the mounting groove to form a pointed working head 6 for crushing operation, and the width of the mounting handle 2 is smaller than the width of the working tooth, and the mounting handle 2 is used to be inserted into the slot of the tool holder of the loosening machine for limiting and assembly, so as to realize the connection and fixation between the mounting handle 2 and the topsoil loosening machine. The working tooth 1 extends outward from the side close to the mounting handle 2 to form at least two mutually symmetrical limiting ribs 7, and the two limiting ribs 7 are spaced apart from the mounting handle to form a limiting slot 8 for limiting the tool holder slot.

[0017] The limiting retaining edge provided in the utility model is used for facilitating the limiting of the installation handle when inserted into the slot of the tool holder of the loosening machine, so as to prevent displacement during operation.

[0018] The area of ​​the working tooth 1 away from the mounting handle 2 decreases step by step, forming a structure that is narrow at the top and wide at the bottom. An arc-shaped slope surface 11 obliquely facing outward is provided on the working tooth 1 between the limiting retaining edge 7 and the mounting groove 4, which is used to buffer and block splashed sewage and gravel after the working head 6 crushing operation.

[0019] The arc-shaped slope surface designed in the utility model can play a certain role in blocking and buffering the splashed sewage and gravel after the working head crushing operation, and the arc-shaped slope surface can also prevent clay from adhering to the working teeth and affecting the working efficiency.

[0020] A protrusion 9 is provided at one end of the mounting handle 2 away from the working tooth 1. The protrusion 9 is connected to the mounting handle 2 through a second arc-shaped transition edge 12. After the mounting handle 2 is inserted into the tool holder slot of the loosening machine, the protrusion 9 is exposed from the tool holder slot. A thread 10 is provided on the outer surface of the protrusion 9 for installing a nut to ensure the fixed connection between the mounting handle 2 and the topsoil loosening machine.

[0021] The utility model can well ensure that the mounting handle is firmly fixed on the surface soil loosening machine through the projection with thread arranged at the end of the mounting handle, and the design of the thread and the nut is more convenient for disassembly, maintenance and replacement than direct welding.

[0022] like Figure 3 As shown, the installation groove 4 of the working tooth 1 is arranged obliquely, and the hard alloy block 5 embedded and welded in the installation groove 4 is a polygonal structure. The utility model has the advantages of reasonable structure, good firmness, convenient use and installation, good firmness of the overall tooth head structure, high impact resistance and high wear 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 pulverizer tooth, comprising a working tooth (1) and a mounting handle (2), characterized in that: The working tooth (1) and the mounting handle (2) are connected via a first arc-shaped transition edge (3); the end of the working tooth (1) away from the mounting handle (2) is recessed inward to form a mounting groove (4); a hard alloy block (5) is embedded and welded in the mounting groove (4); a portion of the hard alloy block (5) is exposed outside the mounting groove to form a pointed working head (6) for crushing operation; the width of the mounting handle (2) is smaller than the width of the working tooth; the mounting handle (2) is used to be inserted into a slot of a cutter seat of a loosening machine for limiting and assembling, thereby realizing the connection and fixation between the mounting handle (2) and the topsoil loosening machine.

2. The pulverizer tooth according to claim 1, characterized in that: The working tooth (1) extends outwards from a side close to the mounting handle (2) to form at least two mutually symmetrical limiting ribs (7), and a spacing is left between the two limiting ribs (7) and the mounting handle respectively, forming a limiting groove (8) for limiting the tool holder groove.

3. The pulverizer tooth according to claim 2, characterized in that: The area of ​​the side of the working tooth (1) away from the mounting handle (2) decreases step by step, forming a structure that is narrow at the top and wide at the bottom. An arc-shaped slope surface (11) obliquely facing outward is provided between the limiting retaining edge (7) and the mounting groove (4) on the working tooth (1), and is used to buffer and block splashed sewage and gravel after the working head (6) performs a crushing operation.

4. The pulverizer tooth according to claim 3, characterized in that: A protrusion (9) is provided at an end portion of the mounting handle (2) away from the working teeth (1); the protrusion (9) is connected to the mounting handle (2) via a second arc-shaped transition edge (12); the protrusion (9) is exposed from the tool holder slot after the mounting handle (2) is inserted into the tool holder slot of the loosening machine; a thread (10) is provided on the outer surface of the protrusion (9) for mounting a nut to ensure a fixed connection between the mounting handle (2) and the topsoil loosening machine.

5. The pulverizer tooth according to claim 4, characterized in that: The mounting groove (4) of the working tooth (1) is arranged obliquely, and the hard alloy block (5) embedded and welded in the mounting groove (4) is a polygonal structure.

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