High-strength agricultural machinery operation tooth

Abstract

The utility model relates to a high-strength agricultural machinery working tooth which comprises a working tooth body, the working tooth body is composed of a tooth core body and tooth side plates on two sides, the tooth side plates are welded on two sides of the tooth core body, one end of each tooth side plate is arranged obliquely upwards, a working head groove is formed in the end portion of each tooth side plate, and a working head is welded in each groove. A flange which is obliquely arranged downwards is arranged below the working head, an assembly hole is formed in the side body of the end, away from the working head, of the rear portion of the flange and used for being installed on agricultural equipment, and hard alloy layers are further welded to the welding position of the tooth core body and the tooth edge plate and the tooth edge plate. The utility model has the advantages of reasonable structure, stable assembly, good firmness, convenience in installation and disassembly, high hardness and high wear resistance, greatly improved working efficiency, prolonged service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery plowshares and relates to a high-strength 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 installed on the existing agricultural machinery is generally made of pure hardened steel, and the plowshare generally directly contacts the soil and loosens 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 plowshare, it is easy to cause damage and deformation due to long-term use and collision with the hard soil and gravel in the soil. In addition, vibration will be generated when the plowshare is operating, resulting in loose connection between the plowshare and the agricultural machinery and loose connection bolts at the bolt holes, affecting the normal use of the plowshare. In addition, mud, sand and sewage will be generated during the plowing process, which are easy to adhere to the tooth head, affecting work efficiency. It will also cause corrosion for a long time and affect the service life. For this reason, a high-strength 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 a high-strength agricultural machinery working tooth with reasonable structure, stable assembly, good firmness, convenient installation and disassembly, high hardness and high wear resistance, which greatly improves working efficiency and service life.

[0004] The utility model is realized through the following technical scheme: a high-strength agricultural machinery working tooth, which includes a working tooth body, which is composed of a tooth core body and tooth side plates on both sides, the tooth side plates are welded to the two sides of the tooth core body, one end of which is arranged upwardly inclined, a working head groove is provided at the end, a working head is welded in the groove, a rib arranged downwardly inclined is provided below the working head, an assembly hole is opened on the side of one end of the rib away from the working head behind the rib, and is used for installation on agricultural machinery equipment, and a hard alloy layer is also welded on the welding part between the tooth core body and the tooth side plate and on the tooth side plate.

[0005] Preferably: the length and width of the tooth edge plate are larger than the tooth core body, and a circle of grooves is formed after wrapping the tooth core body, and the grooves with the bottom located below and behind the assembly hole are used as assembly grooves, and a cemented carbide layer is embedded and welded in the upper groove, and a first cemented carbide block is welded in the groove below the working head and the groove of the retaining edge, a first hard welding rod wear-resistant layer is arranged around the assembly hole, and a cemented carbide sleeve is welded on the working head to wrap the working head.

[0006] Preferably, the cemented carbide layer in the upper groove is composed of a plurality of welded cemented carbide blocks close to the working head and a second hard welding rod wear-resistant layer at the rear.

[0007] Preferably, the second carbide block in the retaining groove is L-shaped, one side of which is welded in the groove and the other side is welded to the tooth edge plate, and a gap is left in the middle after the second carbide blocks on the opposite sides are welded, and the gap is used as a drainage groove.

[0008] Preferably, a third hard welding rod wear-resistant layer is welded to a position near the top of the tooth edge plate.

[0009] Preferably, the first hard welding rod wear-resistant layer around the assembly hole is in an arc-shaped structure, with the center of the arc facing the assembly hole and the arc edge arranged toward one side of the working head, so as to protect the assembly fasteners.

[0010] The beneficial effects of the utility model are as follows:

[0011] The high-strength agricultural machinery working tooth of the utility model is composed of a tooth core body and a tooth side plate, which are welded by forging technology. Compared with castings, the wear resistance is greatly improved and the assembly size is more refined. The two sides of the working tooth body are inlaid with high-strength and high-wear-resistant carbide blocks and high-wear-resistant and high-hardness hard welding rod wear-resistant layers, which greatly improves the product life and work efficiency, reduces the installation and disassembly of the working tooth / plowshare, and is provided with assembly holes on the working tooth for matching and fixing, so that the assembly is stable and firm. The utility model has a reasonable structure, beautiful design, convenient installation and disassembly, high hardness and high wear resistance, thereby greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 for Figure 1 Schematic diagram of direction A.

[0014] Figure 3 for Figure 1 Schematic diagram of direction B.

[0015] Figure 4 for Figure 1 C-direction schematic diagram. DETAILED DESCRIPTION

[0016] 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.

[0017] 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.

[0018] The utility model will be described in detail below with reference to the accompanying drawings: Figure 1-2 As shown, a high-strength agricultural machinery working tooth comprises a working tooth body 1, which is composed of a tooth core body 2 and tooth side plates 3 on both sides. The tooth side plates 3 are welded to the two side edges of the tooth core body 2, one end of which is arranged upwardly at an angle, and a working head groove 4 is provided at the end, a working head 5 is welded in the working head groove 4, and a rib 6 arranged downwardly at an angle is provided below the working head 5. An assembly hole 7 is opened on the side of the end of the rib 6 away from the working head 5 for installation on agricultural machinery. A hard alloy layer is also welded at the welding place between the tooth core body 2 and the tooth side plate 3 and on the tooth side plate 3.

[0019] The working tooth of the utility model is composed of a tooth core body and a tooth side plate, which can be welded by forging technology. Compared with castings, the wear resistance is greatly improved and the assembly size is more refined. The welding part of the tooth core body and the tooth side plate of the working tooth body is welded with a hard alloy layer, which greatly improves the overall strength and thus improves the overall service life. The assembly hole in the utility model can ensure the stability of the working tooth after installation and prevent it from shifting during work.

[0020] like Figure 3 As shown, the length and width of the tooth edge plate 3 are larger than the tooth core body 2. After wrapping the tooth core body 2, a circle of grooves is formed, and the grooves at the bottom below and behind the assembly hole 7 are used as assembly grooves 16. A cemented carbide layer 11 is embedded in and welded to the upper groove, and a first cemented carbide block 8 is welded in the groove below the working head 5 and the groove of the retaining edge 6. A first hard welding rod wear-resistant layer 9 is arranged around the assembly hole 7, and a cemented carbide sleeve 10 is welded on the working head 5 to wrap the working head 5 inside.

[0021] The utility model can improve the wear resistance of the side of the tooth head by setting the hard welding rod wear-resistant layer, greatly improve the service life and work efficiency of the product, reduce the installation and disassembly of the working teeth / plowshares, and the hard alloy sleeve welded on the working head improves the strength of the working head while also greatly improving the wear resistance, thereby improving the service life.

[0022] The cemented carbide layer 11 in the upper groove is composed of a plurality of welded cemented carbide blocks 12 near the working head 5 and a second hard welding rod wear-resistant layer 13 at the rear. Figure 4As shown, the second carbide block 17 in the groove of the retaining edge 6 is L-shaped, one side is welded in the groove, and the other side is welded on the tooth edge plate 3, and the second carbide blocks 17 on the opposite sides are welded so that a gap 14 is left in the middle, and the gap 14 is used as a drainage groove. A third hard welding rod wear-resistant layer 15 is also welded near the top of the tooth edge plate 3.

[0023] After the second hard alloy blocks on the opposite sides of the utility model are welded, a gap is left in the middle to be used as a drain trough, so that muddy water generated after plowing can flow out from the drain trough.

[0024] The first hard welding rod wear-resistant layer 9 around the assembly hole 7 is in an arc-shaped structure, the arc center is facing the assembly hole 7, and the arc edge is arranged toward the side of the working head 5, which is used to protect the assembly fasteners (not shown in the figure). A plowshare used on agricultural machinery, it includes a plowshare and a working tooth head, and the working tooth head is the above-mentioned high-strength agricultural machinery working tooth.

[0025] The utility model is provided with a first hard welding rod wear-resistant layer around the assembly hole, which can well protect the fastener (the fastener is a bolt, etc.), thereby ensuring the overall stability. The utility model has a reasonable structure, beautiful design, convenient installation and disassembly, high hardness and high wear resistance, thereby greatly improving work 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. A high-strength agricultural machinery working tooth, comprising a working tooth body, which is composed of a tooth core body and tooth side plates on both sides, characterized in that: The tooth edge plate is welded to both sides of the tooth core body, one end of which is arranged upwardly at an angle, a working head groove is provided at the end, a working head is welded in the groove, a rib arranged downwardly at an angle is provided below the working head, and an assembly hole is provided on the side of one end of the rib away from the working head behind the rib for installation on agricultural machinery. A hard alloy layer is also welded at the welding point between the tooth core body and the tooth edge plate and on the tooth edge plate.

2. The high-strength agricultural machinery working tooth according to claim 1, characterized in that: The length and width of the tooth edge plate are larger than the tooth core body, and a circle of grooves is formed after wrapping the tooth core body. The grooves at the bottom below and behind the assembly hole are used as assembly grooves, and a cemented carbide layer is embedded and welded in the upper groove. A first cemented carbide block is welded in the groove below the working head and the groove of the retaining edge. A first hard welding rod wear-resistant layer is arranged around the assembly hole, and a cemented carbide sleeve is welded on the working head to wrap the working head.

3. The high-strength agricultural machinery working tooth according to claim 2, characterized in that: The cemented carbide layer in the upper groove is composed of a plurality of welded cemented carbide blocks close to the working head and a second hard welding rod wear-resistant layer at the rear.

4. The high-strength agricultural machinery working tooth according to claim 2, characterized in that: The second carbide block in the retaining groove is L-shaped, one side is welded in the groove, and the other side is welded on the tooth edge plate. After the second carbide blocks on the opposite sides are welded, a gap is left in the middle, and the gap is used as a water leakage groove.

5. The high-strength agricultural machinery working tooth according to claim 2, characterized in that: A third hard welding rod wear-resistant layer is also welded to a position near the top of the tooth edge plate.

6. The high-strength agricultural machinery working tooth according to claim 2, characterized in that: The first hard welding rod wear-resistant layer around the assembly hole is in an arc-shaped structure, with the center of the arc facing the assembly hole and the arc edge arranged toward one side of the working head, so as to protect the assembly fasteners.

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