Agricultural machine operation tooth

Abstract

The utility model relates to an agricultural machine operation tooth which comprises a tooth head body, the tooth head body is composed of a working part and an installation part of a long-strip-shaped structure, the working part is arranged below the installation part of the long-strip-shaped structure, and the working part is composed of a working head at the front end and limiting wrapping edges which are symmetrically arranged on the two sides of the working head. Wherein the working head is of a triangular structure, a first hard alloy layer is welded to the working head, the limiting wrapping edges are used for wrapping the mounting part, it is guaranteed that the mounting part and the working part are attached to each other and firmly fixed, and first hard welding rod abrasion-resistant layers are welded to the side bodies of the sides, away from the working part, of the two limiting wrapping edges correspondingly. At least one positioning through hole is formed in the side body of the mounting part, the side face, away from the working head, of the mounting part is sunken inwards to form an assembling groove, and the mounting part is mounted on the agricultural equipment through cooperation of the assembling groove and the positioning through hole. The utility model has the advantages of reasonable structure, attractive design, high hardness, high wear resistance and the like, and is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery plowshares and relates to an agricultural machinery working tooth. Background Art

[0002] Agricultural machinery refers to a general term for various mechanical equipment used in agricultural production. A plowshare can be installed on the agricultural machinery for operation. The plowshare or working teeth installed on the existing agricultural machinery are generally made of pure hardened steel, and the working teeth generally directly contact the soil and loosen the topsoil. Although most of the soil is soft soil, some hard soil and gravel are mixed in the soft soil. Since there is no protective structure on the working surface of the existing working teeth, it is easy to cause damage and deformation due to collision with the hard soil and gravel in the soil after long-term use, and vibration will be generated when the working teeth are working, resulting in the loosening of the connection between the working teeth and the agricultural machinery after long-term work, affecting the normal use of the working teeth. For this reason, an agricultural machinery working 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 an agricultural machinery working tooth which has a reasonable structure, stable assembly, good firmness, convenient installation and disassembly, high hardness and high wear resistance, and greatly improves the working efficiency and service life.

[0004] The utility model is realized through the following technical scheme: an agricultural machinery working tooth, comprising a tooth head body, the tooth head body consisting of a working part and a mounting part of a long strip structure, the working part is arranged below the mounting part of the long strip structure, the working part consists of a working head at the front end and limiting wrapping edges arranged symmetrically on both sides of the working head, wherein the working head is a triangular structure, a first hard alloy layer is welded on the working head for convenient soil breaking, the limiting wrapping edges are used to partially wrap the mounting part inside to ensure that the mounting part and the working part fit each other and are firmly fixed, a first hard welding rod wear-resistant layer is respectively welded on the side of the two limiting wrapping edges away from the working part, at least one positioning through hole is arranged on the side of the mounting part, and a side surface of the mounting part away from the working head is recessed inward to form an assembly groove, and the mounting part is mounted on the agricultural machinery equipment through the assembly groove and the positioning through hole; a second hard alloy layer and a second hard welding rod wear-resistant layer are also respectively arranged on the mounting part to improve the overall strength and wear resistance.

[0005] Preferably, a reinforcing rib with the same width as the side of the mounting part and protruding outward is provided in the middle position of the side of the mounting part of the elongated structure to improve the overall strength. The protruding reinforcing rib forms two upper and lower limit grooves on the side of the mounting part, and each limit groove is respectively provided with a positioning through hole. The limit groove and the positioning through hole cooperate to prevent the tooth head body from being displaced during operation.

[0006] Preferably, the front end face of the mounting portion of the elongated structure is a sloped surface, and a bend is provided in the middle of the sloped surface, which divides the sloped surface into a first sloped surface and a second sloped surface, and a second hard welding rod wear-resistant layer matching the first sloped surface is welded on the first sloped surface, and a second hard alloy layer matching the second sloped surface is welded on the second sloped surface.

[0007] Preferably: the second hard welding rod wear-resistant layer is composed of three hard welding rod wear-resistant strips of the same size, and the sides of the three hard welding rod wear-resistant strips are in close contact with each other to form a second hard welding rod wear-resistant layer arranged in a figure eight shape, which is used to facilitate a close fit with the first slope surface; the second hard alloy layer is composed of three long strips of hard alloy blocks, and the sides of the three long strips of hard alloy blocks are in close contact with each other to form a second hard alloy layer arranged in a figure eight shape, which is used to facilitate a close fit with the second slope surface to ensure firm fixation.

[0008] Preferably: the height of the limiting wrapping edge close to the working head is lower than the height of the limiting wrapping edge away from the working head, so that the limiting wrapping edge is arranged obliquely as a whole, to ensure that when the tooth head body is working, only the working head is in contact and operation with the ground, to facilitate breaking the ground, and a third hard welding rod wear-resistant layer is also provided on the bottom surface of the working head to increase the overall service life.

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

[0010] The agricultural machinery working teeth designed by the utility model are changed from the original pure alloy steel casting working teeth / plowshares to the current working surface covered with high-strength and high-wear-resistant hard alloy. The working part limit wrapping edge and the side of the installation part adopt high-strength and high-wear-resistant hard welding rod surfacing technology to form a surfacing layer, which enhances the strength and wear resistance of the surface, and protects the tooth tip and the body together with the hard alloy, greatly improving the product life and work efficiency, and reducing the installation and disassembly of the working teeth / plowshares. The design of the concave and convex surface (the first slope surface and the second slope surface) of the installation part surface improves the wear resistance of the product and reduces the production cost, while improving the aesthetics of the product. The handle (installation part) is fixed by a slot assembly and two positioning through holes, so that it is stable in assembly and has good firmness. The agricultural machinery working teeth of the utility model have a reasonable structure, beautiful design, convenient installation and disassembly, high hardness and high wear resistance, thereby greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure 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 1-2 As shown, an agricultural machinery working tooth includes a tooth head body 1, wherein the tooth head body 1 is composed of a working part 2 and a mounting part 3 of a long strip structure, wherein the working part 2 is arranged below the mounting part 3 of the long strip structure, and the working part 2 is composed of a working head 4 at the front end and mutually symmetrical limiting wrapping edges 5 arranged on both sides of the working head 4, wherein the working head 4 is a triangular structure, and a first hard alloy layer 6 is welded on the working head 4 for facilitating breaking the soil, and the limiting wrapping edge 5 is used to partially wrap the mounting part 3 therein to ensure that the mounting part 3 and the working part 2 fit each other and are firmly fixed, and a first hard welding rod wear-resistant layer 7 is respectively welded on the side of the two limiting wrapping edges 5 away from the working part, and at least one positioning through hole 8 is arranged on the side of the mounting part 3, as shown in FIG. Figure 3 As shown, one side of the mounting portion 3 away from the working head is recessed inward to form an assembly groove 9, and the mounting portion 3 is mounted on the agricultural machinery through the assembly groove 9 and the positioning through hole 8; the mounting portion 3 is also provided with a second cemented carbide layer 10 and a second hard welding rod wear-resistant layer 11, respectively, for improving the overall strength and wear resistance.

[0018] The utility model changes the original pure alloy steel casting working teeth / plowshares to the current working surface covered with high-strength and highly wear-resistant hard alloy, and the working part limiting wrapping edge and the installation part side body adopt high-strength and highly wear-resistant hard welding rod surfacing technology to form a surfacing layer, which enhances the surface strength and wear resistance, and protects the tooth tip and body together with the hard alloy, greatly improving the product service life and work efficiency, and reducing the installation and disassembly of the working teeth / plowshares.

[0019] A reinforcing rib 12 which is as wide as the side surface of the mounting portion 3 and protrudes outward is provided in the middle position of the side surface of the mounting portion 3 of the elongated structure for improving the overall strength. The protruding reinforcing rib 12 forms two upper and lower limiting grooves 13 on the side surface of the mounting portion 3. A positioning through hole 8 is provided in each limiting groove 13. The limiting groove 13 and the positioning through hole 8 cooperate with each other to prevent the tooth head body 1 from being displaced during operation.

[0020] The utility model can greatly improve the overall strength by setting the reinforcing ribs, and the setting of the limiting groove 13 and the positioning through hole 8 plays a double limiting role, which can well avoid the displacement of the working teeth due to vibration during work.

[0021] The front end face of the mounting portion 3 of the long strip structure is a slope surface 14, and a bend 15 is provided in the middle position of the slope surface. The bend 15 divides the slope surface 14 into a first slope surface 16 and a second slope surface 17. A second hard welding rod wear-resistant layer 11 matching the first slope surface 16 is welded on the first slope surface 16, and a second hard alloy layer 10 matching the second slope surface 17 is welded on the second slope surface 17.

[0022] The surface of the mounting portion of the utility model is a concave-convex surface (a first slope surface and a second slope surface). This design improves the wear resistance of the product and reduces the production cost, while improving the aesthetics of the product. The mounting portion (handle) is fixed by a card slot assembly and two positioning through holes, so that the assembly is stable and the firmness is good. Of course, the number and shape of the positioning through holes can be adjusted according to actual conditions without limitation. The agricultural machinery working teeth of the utility model have the advantages of reasonable structure, beautiful design, easy installation and disassembly, high hardness and high wear resistance, thereby greatly improving work efficiency.

[0023] like Figure 4 As shown, the second hard welding rod wear-resistant layer 11 is composed of three hard welding rod wear-resistant strips 18 of the same size, and the sides of the three hard welding rod wear-resistant strips 18 are closely attached to each other, forming the second hard welding rod wear-resistant layer 11 arranged in a figure eight shape, which is used to facilitate a close fit with the first slope surface 16. The second hard alloy layer 10 is composed of three long strips of hard alloy blocks 19, and the sides of the three long strips of hard alloy blocks 19 are closely attached to each other, forming the second hard alloy layer 10 arranged in a figure eight shape, which is used to facilitate a close fit with the second slope surface 17 to ensure firm fixation.

[0024] The height of the limiting wrapping edge 5 close to the working head 4 is lower than the height of the limiting wrapping edge 5 away from the working head 4, so that the limiting wrapping edge is arranged obliquely as a whole, which is used to ensure that when the tooth head body 1 is working, only the working head 4 contacts and operates with the ground, which is used to facilitate breaking the ground. A third hard welding rod wear-resistant layer 20 is also provided on the bottom surface of the working head 4 to increase the overall service life.

[0025] The agricultural machinery working tooth of the utility model has reasonable structure, beautiful design, convenient installation and disassembly, high hardness and high wear resistance, thereby greatly improving the working efficiency.

[0026] 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. An agricultural machinery working tooth, comprising a tooth head body (1), characterized in that: The tooth head body (1) is composed of a working portion (2) and a mounting portion (3) of a long strip structure, wherein the working portion (2) is arranged below the mounting portion (3) of the long strip structure, and the working portion (2) is composed of a working head (4) at the front end and mutually symmetrical limiting wrapping edges (5) arranged on both sides of the working head (4), wherein the working head (4) is a triangular structure, and a first hard alloy layer (6) is welded on the working head (4) for facilitating soil breaking, and the limiting wrapping edges (5) are used to partially wrap the mounting portion (3) therein to ensure that the mounting portion (3) and the working portion (2) are in contact with each other. The two limiting wrapping edges (5) are fitted together and firmly fixed, a first hard welding rod wear-resistant layer (7) is respectively welded on the side of the two limiting wrapping edges (5) away from the working part, at least one positioning through hole (8) is provided on the side of the mounting part (3), and the side surface of the mounting part (3) away from the working head is recessed inward to form an assembly groove (9), and the mounting part (3) is mounted on the agricultural machinery through the assembly groove (9) and the positioning through hole (8); the mounting part (3) is also respectively provided with a second hard alloy layer (10) and a second hard welding rod wear-resistant layer (11) for improving the overall strength and wear resistance.

2. The agricultural machine working tooth according to claim 1, characterized in that: A reinforcing rib (12) having the same width as the side of the mounting portion (3) and protruding outwards is provided at the middle position of the side of the mounting portion (3) of the elongated structure, for improving the overall strength; the protruding reinforcing rib (12) forms two upper and lower limiting grooves (13) on the side of the mounting portion (3); each limiting groove (13) is provided with a positioning through hole (8); the limiting groove (13) and the positioning through hole (8) cooperate to prevent the tooth head body (1) from being displaced during operation.

3. The agricultural machine working tooth according to claim 2, characterized in that: The front end surface of the mounting portion (3) of the long strip structure is a slope surface (14), and a bend (15) is provided in the middle of the slope surface. The bend (15) divides the slope surface (14) into a first slope surface (16) and a second slope surface (17). A second hard welding rod wear-resistant layer (11) matching the first slope surface (16) is welded on the first slope surface (16), and a second hard alloy layer (10) matching the second slope surface (17) is welded on the second slope surface (17).

4. The agricultural machine working tooth according to claim 3, characterized in that: The second hard welding rod wear-resistant layer (11) is composed of three hard welding rod wear-resistant strips (18) of the same size, and the sides of the three hard welding rod wear-resistant strips (18) are closely attached to each other, forming a second hard welding rod wear-resistant layer (11) arranged in a figure eight shape, which is used to facilitate close fitting with the first slope surface (16); the second hard alloy layer (10) is composed of three long strips of hard alloy blocks (19), and the sides of the three long strips of hard alloy blocks (19) are closely attached to each other, forming a second hard alloy layer (10) arranged in a figure eight shape, which is used to facilitate close fitting with the second slope surface (17) to ensure firm fixation.

5. The agricultural machine working tooth according to claim 1, characterized in that: The height of the limiting wrapping edge (5) on the side close to the working head (4) is lower than the height of the limiting wrapping edge (5) on the side away from the working head (4), so that the limiting wrapping edge is arranged obliquely as a whole, so as to ensure that when the tooth head body (1) is working, only the working head (4) contacts and operates with the ground, so as to facilitate breaking the ground. A third hard welding rod wear-resistant layer (20) is also provided on the bottom surface of the working head (4) to increase the overall service life.

Images