CN220450962U - Easy assembly structure of toothholder and bucket tooth and excavator bucket - Google Patents

Abstract

The utility model relates to the technical field of excavators, in particular to an easy-assembly structure of a tooth holder and a bucket tooth and an excavator bucket, wherein the easy-assembly structure of the tooth holder and the bucket tooth comprises the following components: the pin is cylindrical, a blind hole is formed in the end face of one end of the pin, a positioning column is arranged on the side face of the column body close to the blind hole end, a positioning groove is formed in the gasket, and the positioning groove is matched with the positioning column on the pin in shape. According to the utility model, the pin with the positioning column and the gasket with the positioning groove are adopted, so that the pin and the gasket with the positioning groove can be matched with the tooth holder shell only by rotating the pin and the gasket by a certain angle, and the installation and the disassembly of the bucket tooth and the tooth holder are completed.

Description

Easy assembly structure of toothholder and bucket tooth and excavator bucket

Technical Field

The utility model relates to the technical field of excavators, in particular to an easy-to-assemble structure of a tooth holder and a bucket tooth and an excavator bucket.

Background

An excavator is an earth moving machine that excavates material above or below a deck with a bucket and loads the material into a transport vehicle or unloads the material to a storage yard. The materials excavated by the excavator are mainly soil, coal, silt and soil and rock after pre-loosening. With the development of engineering machines in recent years, an excavator has become one of the most important engineering machines in engineering construction. In the prior art, the connecting modes of the bucket teeth and the tooth holders of the excavator are various.

CN202214757U of the chinese patent publication discloses a cooperation structure of toothholder and bucket tooth, including bucket tooth, toothholder, ring-shaped expansion member, take the protruding pin of twice ring-shaped, the bucket tooth includes bucket tooth cavity, cavity both sides cavity wall has cylindrical pinhole, the toothholder includes the toothholder head, and the toothholder head transversely runs through has cylindrical pinhole, and the pin runs through the pinhole of toothholder head and bucket tooth cavity both sides, realizes fastening through the interference fit of two ring-shaped protruding and ring-shaped expansion member on the pin. However, due to the adoption of interference fit, friction force among the pin, the annular expansion part and the tooth holder is greatly increased, so that the pin can be inserted into the pin hole only by being knocked by a hammer in the process of mounting the bucket tooth and the tooth holder, and the assembly is difficult. Therefore, the prior art has the problem that the bucket teeth and the tooth seats are inconvenient to install and detach.

Disclosure of Invention

The utility model provides an easy-to-assemble structure of a tooth holder and a bucket tooth and an excavator bucket, which aim to overcome the defects in the prior art.

In order to achieve the above object, the embodiment of the present utility model provides an easy assembly structure of a tooth holder and a bucket tooth, wherein the tooth holder is connected with the bucket tooth in a plugging manner, the plugging end of the tooth holder is a quadrangular pyramid, the plugging end of the bucket tooth is provided with a quadrangular pyramid groove matched with the plugging end of the tooth holder, the plugging end of the tooth holder is provided with a pin shaft hole, and two sides of the quadrangular pyramid groove of the bucket tooth are respectively provided with a pin shaft positioning hole matched with the pin shaft hole, and the easy assembly structure of the tooth holder and the bucket tooth is characterized in that the easy assembly structure of the tooth holder and the bucket tooth further comprises: the pin is cylindrical, a blind hole is formed in the end face of one end of the pin, a positioning column protruding outwards is arranged on the side face of the pin, close to the blind hole, of the column body, at least four positioning grooves are formed in the side face of one side of the gasket, and the positioning grooves are matched with the positioning column in shape; the novel bucket tooth positioning device is characterized in that a gasket groove is formed in the bottom of one side of the bucket tooth quadrangular pyramid groove, the gasket is arranged in the gasket groove, a pin shaft positioning hole on one side of the quadrangular pyramid groove penetrates through the gasket groove and is provided with a positioning convex groove matched with a pin positioning column, and the pin sequentially penetrates through a pin shaft positioning hole on one side of the bucket tooth, the positioning convex groove, a tooth seat pin shaft hole and a pin shaft positioning hole on the other side of the bucket tooth.

Preferably, the length of the pin should not be greater than the spacing between the sides of the tooth.

Preferably, the blind hole of the pin is square or hexagonal in shape.

Preferably, the positioning column on the pin is cylindrical.

Preferably, the gasket groove and the gasket are right trapezoid in the thickness direction, the bevel edge of the gasket is close to the surface of the quadrangular pyramid, and the right-angle edge of the gasket is close to the bottom of the bucket tooth gasket groove.

Preferably, the number of the positioning grooves on the gasket is four.

Preferably, the utility model also discloses an excavator bucket with the easily assembled structure of the tooth holder and the bucket tooth.

In summary, the beneficial effects of the utility model are as follows:

1. through the adoption of the pin with the locating column and the washer with the locating slot, the pin locating column and the pin shaft hole can be staggered only by rotating a certain angle, and the fixing of the pin is realized.

2. By adopting the pin with the positioning column and the gasket with the positioning groove, the pin positioning column and the pin shaft hole can be combined by rotating the pin with a certain angle, and the pin can be easily taken out by pushing the pin from the other side.

3. The pin with the positioning column and the washer with the positioning groove are in clearance fit, so that the fastening is realized by adopting interference fit of the pin and the washer compared with the prior art, the requirement on the dimensional accuracy of the pin is not high, and only the washer hole is needed.

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

Fig. 1 is a schematic view of an assembly structure of the present utility model.

FIG. 2 is a schematic view of a tooth construction according to the present utility model.

Fig. 3 is another directional view of fig. 2.

Fig. 4 is a schematic structural view of the tooth holder of the present utility model.

FIG. 5 is a schematic view of a pin according to the present utility model.

Fig. 6 is a schematic view of a gasket of the present utility model.

In the figure: 1. washer 11, positioning groove 2, bucket tooth 21, washer groove 22, quadrangular pyramid groove 23, key groove 24, pin positioning hole 25, positioning convex groove 3, tooth holder 31, quadrangular pyramid 32, convex key 33, pin hole 4, pin 41, positioning column 42, and blind hole.

Detailed Description

The present utility model will be described in further detail with reference to specific examples for the purpose of facilitating understanding to those skilled in the art.

Referring to fig. 1 to 6, in the easy-to-assemble structure of a tooth holder and a bucket tooth disclosed by the utility model, a tooth holder 3 is connected with a bucket tooth 2 in a plugging manner, the plugging end of the tooth holder 3 is a quadrangular pyramid 31, the plugging end of the bucket tooth 2 is provided with a quadrangular pyramid groove 22 matched with the plugging end of the tooth holder 3, the plugging end of the tooth holder 3 is provided with a pin shaft hole, two sides of the quadrangular pyramid groove 22 of the bucket tooth 2 are respectively provided with a pin shaft positioning hole 24 matched with the pin shaft hole, and the assembly structure of the tooth holder 3 and the bucket tooth 2 further comprises: the pin 4 and the gasket 1, the pin 4 is cylindrical, a blind hole 42 is arranged on the end surface of one end of the pin 4, a positioning column 41 protruding outwards is arranged on the side surface of the pin 4 close to the blind hole 42, at least four positioning grooves 11 are arranged on the side surface of one side of the gasket 1, and the positioning grooves 11 are matched with the positioning column 41 in shape; the bottom of one side of the quadrangular pyramid groove 22 of the bucket tooth 2 is provided with a gasket groove 21, the gasket 1 is arranged in the gasket groove 21, a pin shaft positioning hole 24 on one side of the quadrangular pyramid groove 22 penetrates through the gasket groove 21 and is provided with a positioning convex groove 25 matched with a pin 4 positioning column 41, and the pin 4 sequentially penetrates through the pin shaft positioning hole 24 and the positioning convex groove 25 on one side of the bucket tooth 2, the pin shaft hole 33 of the tooth holder 3 and the pin shaft positioning hole 24 on the other side of the bucket tooth 2.

In one embodiment of this embodiment, the pin 4 should have a length not greater than the spacing between the sides of the tooth 2.

In one implementation of this embodiment, the blind hole 42 of the pin 4 is square or hexagonal in shape.

In other embodiments, the blind hole 42 of the pin 4 may be polygonal or patterned in combination other than circular.

In one implementation of this embodiment, referring to fig. 5, the positioning post 41 on the pin 4 is cylindrical.

In other embodiments, the positioning posts 41 on the pin 4 may also be rectangular or spherical.

In one embodiment of this example, referring to fig. 2 and 6, the gasket groove 21 and the gasket 1 are rectangular trapezoids in the thickness direction, the bevel edge of the gasket 1 is close to the surface of the quadrangular pyramid 31 of the tooth holder 3, and the right-angle edge of the gasket 1 is close to the bottom of the gasket groove 21 of the tooth 2.

In one implementation of this embodiment, the number of the positioning grooves 11 on the gasket 1 is four.

In other embodiments, the positioning groove 11 on the gasket 1 may be provided in plural.

In one embodiment of the present embodiment, a swivel pin is provided that matches the shape of the blind hole 42 of the pin 4.

The utility model also provides an excavator bucket with the assembly structure of the tooth holder 3 and the bucket tooth 2.

The implementation process of the utility model comprises the following steps:

referring to fig. 1 to 6, in the installation process of the easy-to-assemble structure of the tooth holder and the tooth, firstly, a gasket 1 is arranged in a gasket groove 21 in the tooth 2, then a quadrangular pyramid 31 of the tooth holder 3 is arranged in a quadrangular pyramid groove 22, one side of a bevel edge in the thickness direction of the gasket 1 is close to the quadrangular pyramid 31, one side of a right-angle edge is close to the bottom of the gasket groove 21 of the tooth 2, a convex key 32 of the tooth holder 3 is inserted into a key groove 23 of the tooth 2, a positioning column 41 of a pin 4 is aligned with a positioning convex groove 25 on a pin positioning hole 24 on the tooth 2, the pin 4 is inserted from the pin positioning hole 24 of the tooth 2, the pin 4 sequentially penetrates through the pin positioning hole 24 and the positioning convex groove 25 on the tooth 2, a pin hole 13 of the tooth holder 3 and the pin positioning hole 24 on the other side of the tooth 2, the pin 4 is clamped in a positioning groove 11 of the gasket 1, then a rotary pin is inserted into a blind hole 42 of the pin 4, the rotary pin is rotated to drive the pin 4 and the pin 1 to rotate by a certain angle, and the pin 4 and the pin 1 are placed in the gasket 1, and the pin positioning hole 4 is prevented from being staggered with the pin positioning hole 1 and the other side of the tooth 2 is firmly from being aligned with the groove 1; the rotating pin is taken out, and at this time, the positioning column 41 of the pin 4 is limited by the housing of the tooth 2 and the positioning groove 11 of the washer 1, and cannot freely move, so that the tooth holder 3 and the tooth 2 are firmly fixed.

Referring to fig. 1 to 6, in the process of disassembling the easy-to-assemble structure of the tooth holder and the bucket tooth disclosed by the utility model, firstly, a rotary pin is inserted into a blind hole 42 of a pin 4, the rotary pin is rotated to drive the pin 4 and a gasket 1 to rotate for a certain angle, a positioning groove 11 of a positioning column 41 in which the pin 4 is placed in the gasket 1 is matched with a pin shaft positioning hole 24 of the bucket tooth 2, then the rotary pin is taken out, the pin 4 is taken out from the pin shaft positioning hole 24, and at the moment, a quadrangular pyramid 31 of the tooth holder 3 can be taken out from a quadrangular pyramid groove 22 of the bucket tooth 2, and the tooth holder 3 and the bucket tooth 2 are disassembled.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (6)

1. The utility model provides an easy assembly structure of toothholder and bucket tooth, toothholder and bucket tooth plug are connected, and the plug end of toothholder is the quadrangular pyramid, and bucket tooth plug end is equipped with the quadrangular pyramid groove with toothholder plug end complex, and the toothholder plug end is equipped with the round pin shaft hole, and the quadrangular pyramid groove both sides of bucket tooth are equipped with respectively with round pin shaft hole complex round pin axle locating hole, its characterized in that, this easy assembly structure of toothholder and bucket tooth still includes: the pin is cylindrical, a blind hole is formed in the end face of one end of the pin, a positioning column protruding outwards is arranged on the side face of the pin, close to the blind hole, of the column body, at least four positioning grooves are formed in the side face of one side of the gasket, and the positioning grooves are matched with the positioning column in shape; the novel bucket tooth four-pyramid positioning device is characterized in that a gasket groove is formed in the bottom of one side of the bucket tooth four-pyramid groove, the gasket is arranged in the gasket groove, a pin shaft positioning hole in one side of the four-pyramid groove penetrates through the gasket groove and is provided with a positioning convex groove matched with a pin positioning column, a pin sequentially penetrates through the pin shaft positioning hole in one side of the bucket tooth and the positioning convex groove, a tooth seat pin shaft hole and a pin shaft positioning hole in the other side of the bucket tooth, the gasket groove and the gasket are in right trapezoid shapes in the thickness direction, the bevel edge of the gasket is close to the surface of the four-pyramid of the tooth seat, and the right-angle edge of the gasket is close to the bottom of the bucket tooth gasket groove.

2. An easy-to-assemble structure for a tooth holder and a tooth as claimed in claim 1, wherein said pin has a length not greater than a spacing between sides of the tooth.

3. An easy-to-assemble structure of tooth holder and tooth as claimed in claim 1, wherein said pin blind hole is square or hexagonal in shape.

4. The easy-to-assemble tooth holder and bucket tooth structure of claim 1 wherein said pin has a cylindrical shape.

5. The easy-to-assemble structure of tooth holder and tooth as claimed in claim 1, wherein the number of positioning grooves on said gasket is four.

6. An excavator bucket having an easy-to-assemble structure of a tooth holder and a bucket tooth as claimed in any one of claims 1 to 5.