Bucket tooth mounting structure

Abstract

The utility model discloses a bucket tooth installation structure which comprises a tooth tip and a tooth holder, the lower end of the tooth holder is fixedly connected with the tooth tip through a connecting structure, the upper end of the tooth holder is provided with an installation groove connected with a tooth bucket, and the connecting structure comprises a tooth tip meshing block arranged at the tooth tip connecting end and a tooth holder meshing block arranged at the tooth holder connecting end. The tooth top meshing blocks are of two rectangular block structures distributed at the tooth top connecting end and on the opposite angles, the tooth holder meshing blocks and the tooth top meshing blocks are of the same structure and are arranged in a staggered mode, the tooth top meshing blocks and the tooth holder meshing blocks are provided with through installation holes corresponding in position, the outer ends of the installation holes are provided with tooth holder counter bores and tooth top counter bores respectively, and the tooth top counter bores and the tooth top counter bores are arranged in a staggered mode. A connecting rod is inserted into the mounting hole, the end, provided with a limiting block, of the connecting rod is located in the tooth holder counter bore, the end, provided with a positioning groove, of the connecting rod is located in the tooth tip counter bore, and an expansion sleeve is sleeved with the positioning groove; the bucket tooth installation structure has the advantages of being convenient and reliable to install, simple in structure and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to bucket tooth structure technical field, especially bucket tooth mounting structure. BACKGROUND

[0002] The excavator is a kind of earth-moving machinery, which uses a shovel to excavate materials above or below the ground surface and load them into transport vehicles or unload them into a stockpile site. The excavated materials are mainly soil, coal, sand, and soil and rock after pre-loosening. From the development of engineering machinery in recent years, the development of excavators is relatively fast, and excavators have become one of the most important engineering machinery in engineering construction. The bucket tooth of the excavator is an important part of the excavator, similar to the human pressure tooth, and is also a consumable part. After damage, it needs to be replaced immediately, otherwise it will affect the excavation effect. For the bucket tooth structure that needs to be replaced and maintained frequently, a reliable and convenient mounting structure needs to be designed. The existing bucket tooth structure is improved, and a new safe and reliable bucket tooth mounting structure is provided. SUMMARY

[0003] The utility model provides a kind of bucket tooth mounting structure.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A bucket tooth mounting structure includes a tooth tip and a tooth seat, the lower end of the tooth seat is fixedly connected with the tooth tip through a connecting structure, the upper end of the tooth seat is provided with a mounting groove connected with a tooth bucket, the connecting structure includes a tooth tip engaging block provided at the connecting end of the tooth tip and a tooth seat engaging block provided at the connecting end of the tooth seat, the tooth tip engaging block is two rectangular block structures distributed on the opposite corners of the connecting end of the tooth tip, the tooth seat engaging block is the same structure as the tooth tip engaging block and is arranged in a staggered position, corresponding mounting holes are provided in the tooth tip engaging block and the tooth seat engaging block, the outer ends of the mounting holes are respectively provided with a tooth seat counterbore and a tooth tip counterbore, the number of the tooth seat counterbores and the tooth tip counterbores is two, a connecting rod is inserted into the mounting holes, one end of the connecting rod provided with a limiting block is located in the tooth seat counterbore, and one end of the connecting rod provided with a positioning groove is located in the tooth tip counterbore, an expansion sleeve is sleeved in the positioning groove, and the expansion sleeve is sleeved in the positioning groove to prevent the connecting rod from being pulled out of the mounting hole.

[0006] Further, the positioning groove is a circular arc groove, the inner ring of the expansion sleeve is arranged in the same circular arc structure as the positioning groove, the expansion sleeve is deformed and expanded under the extrusion of the connecting rod during installation, reaches the positioning groove position, and naturally shrinks tightly.

[0007] Further, chamfers for welding fixation are provided on the mounting blocks on both sides of the mounting groove, the chamfers are arranged at the welding position to increase the connection area of the weld and improve the welding strength.

[0008] Further, the connecting inner sides on the tooth tip engaging blocks and the tooth seat engaging blocks are provided with round corners, so that the wear between the tooth tip engaging blocks and the tooth seat engaging blocks is reduced.

[0009] In conclusion, the bucket tooth mounting structure has the advantages of convenient and reliable installation and simple structure. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a front view of the bucket tooth;

[0011] Figure 2 is a side view of the bucket tooth;

[0012] Figure 3 is a schematic view of the connecting structure of the bucket tooth and the tooth seat;

[0013] Figure 4 is a schematic view of the connecting end of the bucket tooth.

[0014] In the figure, 1 is a tooth tip; 2 is a tooth seat; 3 is a tooth tip engaging block; 4 is a tooth seat engaging block; 5 is a mounting groove; 6 is a tooth seat counterbore; 7 is a tooth tip counterbore; 8 is a connecting rod; 9 is an expansion sleeve; 10 is a positioning groove; and 11 is a limiting block. DETAILED DESCRIPTION

[0015] The utility model will be further described in detail below in combination with the drawings, and the technical scheme of the utility model embodiment is clearly and completely described. Obviously, the described embodiment is only a part of the embodiments of the utility model, but not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0016] As shown in Figures 1-4 A bucket tooth mounting structure includes a tooth tip 1 and a tooth seat 2. The lower end of the tooth seat 2 is fixedly connected with the tooth tip 1 through a connecting structure. The upper end of the tooth seat 2 is provided with a mounting groove 5 connected with a tooth bucket. The connecting structure includes a tooth tip engaging block 3 provided at the connecting end of the tooth tip 1 and a tooth seat engaging block 4 provided at the connecting end of the tooth seat 2. The tooth tip engaging block 3 is a two-rectangular-block structure distributed on the opposite corners of the connecting end of the tooth tip 1. Figure 4 As shown in Figure 2As shown, the number of the tooth base counterbore 6 and the tooth tip counterbore 7 is two, the connecting rod 8 is inserted into the mounting hole, one end of the connecting rod 8 provided with the limiting block 11 is located in the tooth base counterbore 6, one end of the connecting rod 8 provided with the positioning groove 10 is located in the tooth tip counterbore 7, the expansion sleeve 9 is sleeved in the positioning groove 10, the expansion sleeve 9 is sleeved in the positioning groove 10, and the connecting rod 8 is limited to be pulled out of the mounting hole.

[0017] Further, the positioning groove 10 is a circular arc groove, the inner ring of the expansion sleeve 9 is provided with the same circular arc structure as the positioning groove 10, and the expansion sleeve 9 is deformed and expanded under the extrusion of the connecting rod 8 when being installed, reaches the position of the positioning groove 10, and is naturally contracted and clamped.

[0018] Further, as shown, Figure 2 The mounting block on the two sides of the mounting groove 5 is provided with a chamfer for welding fixation, and the chamfer is arranged at the welding position to increase the connection area of the welding seam and improve the welding strength.

[0019] Further, the connecting inner side edges of the tooth tip engagement block 3 and the tooth base engagement block 4 are each provided with a round corner, and the round corner is arranged to reduce the wear between the tooth tip engagement block 3 and the tooth base engagement block 4.

[0020] Working principle: when being installed, the tooth base 2 is welded on the bucket seat in advance through the mounting groove 5, the tooth tip 1 and the tooth base 2 are aligned and engaged well through the tooth tip engagement block 3 and the tooth base engagement block 4, the tooth tip 1 and the tooth base 2 have multiple direction position limitations after being engaged well, and the two can only be pulled out in the opposite direction of the installation direction, then the connecting rod 8 is aligned with the expansion sleeve 9 in the mounting hole, the expansion sleeve 9 is pressed into the positioning groove 10 of the connecting rod 8 through a sleeve and other auxiliary tools, the expansion sleeve 9 is made of a material with high strength and good elasticity, such as spring steel, and the fixation is completed, and when being disassembled, the connecting rod 8 is pulled out by a reverse machine with a pin.

[0021] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A tooth mounting structure comprising a tooth tip (1) and a tooth holder (2), the lower end of the tooth holder (2) being fixedly connected to the tooth tip (1) by a connecting structure, the upper end of the tooth holder (2) being provided with a mounting groove (5) connected to a tooth bucket, characterized in that: The connecting structure comprises tooth tip engaging blocks (3) arranged at the connecting end of the tooth tip (1) and tooth seat engaging blocks (4) arranged at the connecting end of the tooth seat (2), the tooth tip engaging blocks (3) are two rectangular block structures distributed on the connecting end and opposite corners of the tooth tip (1), the tooth seat engaging blocks (4) are arranged in a position staggered manner and have the same structure as the tooth tip engaging blocks (3), corresponding through mounting holes are arranged on the tooth tip engaging blocks (3) and the tooth seat engaging blocks (4), outer ends of the mounting holes are respectively provided with tooth seat counterbores (6) and tooth tip counterbores (7), a connecting rod (8) is inserted into the mounting holes, one end of the connecting rod (8) provided with a limiting block (11) is located in the tooth seat counterbore (6), one end of the connecting rod (8) provided with a positioning groove (10) is located in the tooth tip counterbore (7), an expansion sleeve (9) is sleeved in the positioning groove (10), the expansion sleeve (9) is sleeved in the positioning groove (10) to limit the connecting rod (8) from being pulled out of the mounting hole.

2. A tooth mounting structure according to claim 1, wherein: The positioning groove (10) is a circular arc groove, and the inner ring of the expansion sleeve (9) is arranged in the same circular arc structure as the positioning groove (10).

3. A tooth mounting structure according to claim 1, wherein: The mounting blocks on both sides of the mounting groove (5) are provided with chamfers for welding fixation.

4. A tooth mounting structure according to claim 1, wherein: The connecting inner side edges of the tooth tip engaging blocks (3) and the tooth seat engaging blocks (4) are all provided with round corners.

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