CN213173869U

CN213173869U - Bucket pin shaft fixing structure

Info

Publication number: CN213173869U
Application number: CN202021488344.9U
Authority: CN
Inventors: 郭瑞
Original assignee: Jining Tiannuo Construction Machinery Co ltd
Current assignee: Jining Tiannuo Construction Machinery Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-05-11
Anticipated expiration: 2030-07-25

Abstract

A bucket pin shaft fixing structure comprises a pin shaft and an ear plate; a bush penetrates through one side of the lug plate, an inner hole is formed in the middle of the bush, and an oil groove is formed in the circumferential surface of the inner hole; the other side of the lug plate is provided with a fixed disc, and the fixed disc is provided with a grease hole; a pin shaft penetrates through the bushing; the wear-resistant ear plate has the advantages of wear resistance, durability, convenient use and maintenance and effective prevention of abrasion and deformation of the ear plate; by arranging the bushing with the oil groove, on one hand, the lubricating effect is improved, the effective lubricating time is prolonged, on the other hand, the pin shaft and the lug plate are not in direct contact, the mutual abrasion between the lug plate and the pin shaft is avoided, and the service life of the pin shaft and the lug plate is prolonged; if the abrasion happens after long-time work, only the lining needs to be replaced, and other high-cost accessories do not need to be replaced.

Description

Bucket pin shaft fixing structure

The technical field is as follows:

the utility model belongs to the technical field of the excavator bucket technique and specifically relates to a bucket round pin axle fixed knot constructs that says so.

Background art:

the bucket belongs to the structure class product, by the toothholder board, bottom plate, sideboard, wallboard, otic placode, backplate, fill otic placode, fill earmuff, bucket tooth, toothholder, backplate or bucket angle etc. spare and accessory parts constitute, so the welding is the most crucial manufacturing process of bucket, and welding quality directly influences the structural strength and the life of bucket. The excavator bucket is connected with the movable arm through the ear plate and the pin shaft, the excavator bucket needs to rotate in a large amount by taking the pin shaft as the shaft in the long-time working process, the excavator bucket bears very large torque, the torque is completely transmitted to the pin shaft and the ear plate, and the pin shaft cannot be lubricated and maintained frequently and effectively for a long time, so that the pin shaft is seriously worn and loosely matched, and even irregular deformation, reaming and serious abrasion of a pin shaft seat hole occur, and the normal operation of the excavator cannot be guaranteed.

The invention content is as follows:

in order to solve the problems, the utility model overcomes the defects of the prior art, and provides a bucket pin shaft fixing structure which is wear-resistant and durable, is convenient to use and maintain and effectively prevents the ear plate from being deformed due to wear.

In order to achieve the purpose, the bucket pin shaft fixing structure provided by the utility model comprises a pin shaft and an ear plate; a bush penetrates through one side of the lug plate, an inner hole is formed in the middle of the bush, and an oil groove is formed in the circumferential surface of the inner hole; the other side of the lug plate is provided with a fixed disc, and the fixed disc is provided with a grease hole; the pin shaft penetrates through the bushing.

Further, still include the bucket, be provided with two otic placodes on the bucket, the both ends of otic placode all are provided with the round pin axle, and the both ends of two otic placodes all link to each other through the round pin axle.

Further, two otic placodes set up to be parallel to each other, and two round pin axles set up to be parallel to each other.

Furthermore, the bushing is of a two-section structure, the bushing comprises an extending end with a smaller diameter and a baffle end with a larger diameter, a first flange is arranged between the baffle end and the lug plate, and a second flange is arranged between the fixed disc and the lug plate; the extending end sequentially penetrates through the first flange plate, the lug plate and the second flange plate.

Further, the butter hole is provided with two, two butter holes respectively with the oil groove intercommunication.

Furthermore, a grease hole shield is arranged on the grease hole.

Further, the outer diameter of the pin shaft is the same as the inner diameter of the bushing.

Further, the oil groove is filled with grease.

Furthermore, a plurality of bolts are arranged on the fixed disk, and the fixed disk is connected with the lug plate through the bolts.

The utility model has the advantages that:

the utility model provides a bucket round pin axle fixed knot constructs has wear-resisting durable, uses easy maintenance, effectively prevents the advantage that the otic placode wearing and tearing warp.

By arranging the bushing with the oil groove, on one hand, the lubricating effect is improved, the effective lubricating time is prolonged, on the other hand, the pin shaft and the lug plate are not in direct contact, the mutual abrasion between the lug plate and the pin shaft is avoided, and the service life of the pin shaft and the lug plate is prolonged; if the abrasion happens after long-time work, only the lining needs to be replaced, and other high-cost accessories do not need to be replaced.

Grease can be injected at any time through the grease hole on the fixed disc, and unnecessary abrasion caused by lack of lubricating grease is prevented.

The bushing is processed by heat treatment, so that the wear-resisting strength is greatly higher than that of an untreated lug plate, and the wear-resisting property is stronger.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic diagram of the detail enlarged structure of the present invention;

FIG. 3 is an exploded view of the detailed structure of the present invention;

FIG. 4 is a schematic diagram of a detailed enlarged structure of the bushing of the present invention;

in the drawings: 1. bush, 2, fixed disk, 3, round pin axle, 4, butter hole, 5, otic placode, 6, bolt, 7, butter hole guard shield, 8, first ring flange, 9, second ring flange, 10, bucket.

The specific implementation mode is as follows:

in order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the attached

drawings

1, 2, 3 and 4 of the present invention to perform more detailed description of the present invention.

The utility model provides a bucket pin shaft fixing structure, which comprises a pin shaft 3 and an ear plate 5; a bush 1 penetrates through one side of the ear plate 5, an inner hole is formed in the middle of the bush 1, and an oil groove is formed in the circumferential surface of the inner hole; the other side of the ear plate 5 is provided with a fixed disc 2, and the fixed disc 2 is provided with a grease hole 4; a pin shaft 3 penetrates through the bushing 1; the excavator bucket comprises an excavator bucket 10, wherein two ear plates 5 are arranged on the excavator bucket 10, pin shafts 3 are arranged at two ends of the ear plates 5, and two ends of the two ear plates 5 are connected through the pin shafts 3; the two ear plates 5 are arranged in parallel, and the two pin shafts 3 are arranged in parallel; the bushing 1 is of a two-section structure, the bushing 1 comprises an extending end with a smaller diameter and a baffle end with a larger diameter, a first flange 8 is arranged between the baffle end and the lug plate 5, and a second flange 9 is arranged between the fixed disc 2 and the lug plate 5; the extending end sequentially penetrates through the first flange plate 8, the lug plate 5 and the second flange plate 9; two grease holes 4 are formed, and the two grease holes 4 are respectively communicated with the oil groove; the grease hole 4 is provided with a grease hole shield 7; the outer diameter of the pin shaft 3 is the same as the inner diameter of the bush 1; the oil groove is filled with butter; the fixed disc 2 is provided with a plurality of bolts 6, and the fixed disc 2 is connected with the ear plate 5 through the bolts 6.

The utility model discloses a one of them embodiment as follows:

the utility model provides a bucket round pin axle fixed knot constructs mainly includes otic placode 5, bush 1 and round pin axle 3, is provided with two otic placodes 5 that are parallel to each other on the backplate of bucket 10, is provided with two round pin axles 3 that are parallel to each other between two otic placodes 5, and otic placode 5 and round pin axle 3 are then the mutually perpendicular relation. The two pin shafts 3 are respectively arranged at two ends of the ear plate 5.

The both ends of otic placode 5 are provided with the seat hole, run through in the seat hole and set up bush 1, and there is the welding to play wear-resisting first ring flange 8 between bush 1 and otic placode 5, the opposite side of otic placode 5 is provided with fixed disk 2, there is the welding to play wear-resisting second ring flange 9 between fixed disk 2 and the otic placode 5, bush 1 stretches into the end and runs through first ring flange 8 in proper order, otic placode 5 and second ring flange 9, and hug closely on fixed disk 2, fixed disk 2 passes through bolt 6 and otic placode 5 fixed connection.

An oil groove with a spiral structure is arranged on the circumferential surface of an inner hole of the bushing 1 and is used for storing butter and prolonging the lubricating duration; the fixed disc 2 is provided with a grease hole 4, and the grease hole 4 is communicated with an oil groove, so that grease can be conveniently injected from the oil groove with 4 grease holes. The grease holes 4 are provided with two grease holes, and grease hole shields 7 are welded on the grease holes 4 to prevent grease nipples from colliding in work. Grease can be injected at any time through the grease hole 4, and unnecessary abrasion caused by lack of grease is avoided.

The bushing 1 is processed by heat treatment, the wear-resisting strength is greatly higher than that of the untreated lug plate 5, and the wear-resisting property is stronger.

In practical use, firstly, the bushing 1 is installed in the seat hole from the inner side of the lug plate 5, then the lug plate 5 and the movable arm are connected through the pin shaft 3 after the relative positions of the lug plate 5 and the movable arm are fixed; then, fixing discs 2 are sequentially arranged on the outer sides of the lug plates 5, and then the fixing discs and the lug plates 5 are screwed and fixed on the lug plates 5 through bolts 6; and then injecting butter into the oil groove from the butter hole 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bucket pin shaft fixing structure comprises a pin shaft (3) and an ear plate (5); the method is characterized in that: a bushing (1) penetrates through one side of the ear plate (5), an inner hole is formed in the middle of the bushing (1), and an oil groove is formed in the circumferential surface of the inner hole; a fixed disc (2) is arranged on the other side of the lug plate (5), and a grease hole (4) is formed in the fixed disc (2); and a pin shaft (3) penetrates through the bushing (1).

2. The bucket pin fixing structure according to claim 1, wherein: the novel excavator bucket is characterized by further comprising an excavator bucket (10), wherein two ear plates (5) are arranged on the excavator bucket (10), pin shafts (3) are arranged at two ends of each ear plate (5), and two ends of each ear plate (5) are connected through the pin shafts (3).

3. The bucket pin fixing structure according to claim 2, wherein: the two ear plates (5) are parallel to each other, and the two pin shafts (3) are parallel to each other.

4. The bucket pin fixing structure according to claim 1, wherein: the bushing (1) is of a two-section structure, the bushing (1) comprises an extending end with a smaller diameter and a baffle end with a larger diameter, a first flange (8) is arranged between the baffle end and the lug plate (5), and a second flange (9) is arranged between the fixed disc (2) and the lug plate (5); the extending end sequentially penetrates through the first flange plate (8), the ear plate (5) and the second flange plate (9).

5. The bucket pin fixing structure according to claim 1, wherein: the number of the grease holes (4) is two, and the two grease holes (4) are respectively communicated with the oil groove.

6. The bucket pin fixing structure according to claim 1 or 5, wherein: and a grease hole shield (7) is arranged on the grease hole (4).

7. The bucket pin fixing structure according to claim 1, wherein: the outer diameter of the pin shaft (3) is the same as the inner diameter of the bushing (1).

8. The bucket pin fixing structure according to claim 1, wherein: the oil groove is filled with butter.

9. The bucket pin fixing structure according to claim 1, wherein: the fixed disc (2) is provided with a plurality of bolts (6), and the fixed disc (2) is connected with the lug plate (5) through the bolts (6).