CN218292067U

CN218292067U - Convenient-to-use connecting rod for excavator bucket

Info

Publication number: CN218292067U
Application number: CN202222040333.XU
Authority: CN
Inventors: 朱玉; 李安康; 陈明; 闫伟
Original assignee: Xuzhou Jie Chuang Machinery Co ltd
Current assignee: Xuzhou Jie Chuang Machinery Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2023-01-13
Anticipated expiration: 2032-08-04

Abstract

The utility model relates to a machine parts manufacturing and designing technical field specifically is a connecting rod for excavator scraper bowl convenient to use, including four link assembly, be connected with the scraper bowl on the four link assembly, four link assembly comprises lower part connecting rod, upper portion connecting rod, rear portion connecting rod and scraper bowl side, and the front end of lower part connecting rod articulates in scraper bowl side lower part, and the front end of upper portion connecting rod articulates on scraper bowl side upper portion, and lower part connecting rod rear end and upper portion connecting rod rear end are connected respectively to the rear portion connecting rod, and the middle part of lower part connecting rod is provided with flexible hydro-cylinder. The utility model discloses a both sides at the inner arm are provided with the outer arm to be provided with the strengthening rib in the outside of outer arm and be used for strengthening the edge of inner arm and handle, make inner arm edge strength higher, be difficult for breaking when using, a plurality of reinforcement pieces that inner arm and outer arm junction set up are used for the further reinforcement of both junctions, make upper portion connecting rod intensity and life obtain promoting when using.

Description

Convenient-to-use connecting rod for excavator bucket

Technical Field

The utility model relates to a machine parts manufacturing and designing technical field specifically is a connecting rod for excavator scraper bowl convenient to use.

Background

An excavator, also known as a digger, is an earth moving machine that excavates material above or below a load bearing surface with a bucket and loads it into a transport vehicle or unloads it to a stockyard. The excavator is composed of a power device, a working device, a swing mechanism, a control mechanism, a transmission mechanism, a traveling mechanism and the like, and is mainly used for excavating materials such as soil, coal, silt and the like. The three most important parameters are the operating weight, the engine power and the bucket capacity. Excavator buckets, also known as buckets, are classified by their mode of operation into backhoe buckets and face buckets, with backhoe buckets being commonly used.

The excavator bucket generally adopts a four-bar linkage structure to stretch and overturn, an upper connecting bar in the four-bar linkage structure is frequently used and is stressed greatly, a stretching effect is achieved, and in the process of long-time use, cracks easily appear at the edge of the upper connecting bar, so that the stability of the whole structure is reduced, and the service life and the use safety of the upper connecting bar are influenced.

To the problem, the utility model provides a connecting rod for excavator scraper bowl convenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an excavator is connecting rod for scraper bowl convenient to use to solve the upper portion connecting rod among the four-bar linkage structure that proposes in the above-mentioned background and use frequently, the atress is great, plays tensile effect, and at the in-process of long-time use, the edge of upper portion connecting rod cracks easily, leads to overall structure's stability to descend, influences upper portion connecting rod life and safe in utilization's problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: a connecting rod for an excavator bucket convenient to use comprises a four-connecting-rod assembly, wherein the four-connecting-rod assembly is connected with a bucket and consists of a lower connecting rod, an upper connecting rod, a rear connecting rod and a bucket side edge, the front end of the lower connecting rod is hinged to the lower part of the bucket side edge, the front end of the upper connecting rod is hinged to the upper part of the bucket side edge, the rear connecting rod is respectively connected with the rear end of the lower connecting rod and the rear end of the upper connecting rod, a telescopic oil cylinder is arranged in the middle of the lower connecting rod, and the telescopic end of the telescopic oil cylinder is connected with the middle of the rear connecting rod and drives the rear connecting rod to swing;

the upper portion connecting rod includes the inner arm, the both ends of inner arm are fixed with first connecting axle and second connecting axle respectively, first connecting axle is articulated with the rear portion connecting rod, the second connecting axle is articulated with scraper bowl side upper portion, the opposite flank of inner arm all is fixed with outer arm, outer arm is fixed respectively with first connecting axle and second connecting axle, inner arm, first connecting axle, second connecting axle and two outer arms are integrated into one piece.

Preferably, the width of the outer arm is twice the thickness of the inner arm, and the inner arm is located at the middle position of the outer arm.

Preferably, shaft holes are formed in the center axes of the first connecting shaft and the second connecting shaft, and wear-resistant steel sleeves are arranged on the inner walls of the shaft holes.

Preferably, a limiting plate is arranged on the first connecting shaft, and the limiting plate is perpendicular to the first connecting shaft.

Preferably, the inner arm is provided with a plurality of through holes, and the cross section of each through hole is of a circular structure.

Preferably, a plurality of reinforcing blocks are arranged at the joint of the inner arm and the outer arm.

Preferably, a plurality of reinforcing ribs are arranged on the outer side of the outer arm, and the reinforcing ribs are arranged in a linear mode.

To sum up, the beneficial effects of the utility model are that:

1. the utility model discloses in, be provided with the outer arm through the both sides at the inner arm to be provided with the strengthening rib in the outside of outer arm and be used for consolidating the edge of inner arm and handle, make inner arm edge strength higher, be difficult for breaking when using, a plurality of reinforcement pieces that inner arm and outer arm junction set up are used for the further reinforcement of both junctions, make upper portion connecting rod intensity and life obtain promoting when using.

2. The utility model discloses in, be used for alleviateing the self weight of upper portion connecting rod through having seted up a plurality of through-holes on the inner arm for the upper portion connecting rod is lighter when using.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of the movement of a bucket of a medium-sized excavator according to the present invention;

FIG. 2 is a schematic view of a part of the structure of the middle-upper connecting rod of the present invention;

fig. 3 is a front view of the middle upper connecting rod of the present invention.

In the figure: 1. a bucket; 2. a lower link; 3. an upper link; 4. a rear link; 5. a telescopic oil cylinder; 301. an inner arm; 302. a first connecting shaft; 303. a second connecting shaft; 304. a limiting plate; 305. an outer arm; 306. a through hole; 307. a reinforcing block; 308. and (5) reinforcing ribs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Example one

Referring to fig. 1-3, a convenient-to-use connecting rod for an excavator bucket comprises a four-bar connecting rod assembly, a bucket 1 is connected to the four-bar connecting rod assembly, the four-bar connecting rod assembly is composed of a lower connecting rod 2, an upper connecting rod 3, a rear connecting rod 4 and a bucket side edge, the front end of the lower connecting rod 2 is hinged to the lower portion of the bucket side edge, the front end of the upper connecting rod 3 is hinged to the upper portion of the bucket side edge, the rear connecting rod 4 is respectively connected to the rear end of the lower connecting rod 2 and the rear end of the upper connecting rod 3, a telescopic cylinder 5 is arranged in the middle of the lower connecting rod 2, and the telescopic end of the telescopic cylinder 5 is connected to the middle of the rear connecting rod 4 and drives the rear connecting rod 4 to swing.

Based on the structure, the telescopic oil cylinder 5 is controlled to operate correspondingly, and the rear connecting rod 4 can be utilized to pull the upper connecting rod 3 to drive the bucket 1 to change the form, so that construction operation is carried out.

Example two

As shown in fig. 1 and fig. 2, the upper link 3 includes an inner arm 301, a first connecting shaft 302 and a second connecting shaft 303 are respectively fixed at two ends of the inner arm 301, shaft holes are respectively formed on central axes of the first connecting shaft 302 and the second connecting shaft 303, an inner wall of each shaft hole is provided with a wear-resistant steel bushing, the first connecting shaft 302 is hinged to the rear link 4, the second connecting shaft 303 is hinged to an upper portion of a side edge of the bucket, outer arms 305 are respectively fixed on opposite sides of the inner arm 301, a width of each outer arm 305 is twice a thickness of the inner arm 301, the inner arm 301 is located at a middle position of the outer arm 305, the outer arm 305 is respectively fixed to the first connecting shaft 302 and the second connecting shaft 303, the inner arm 301, the first connecting shaft 302, the second connecting shaft 303 and the two outer arms 305 are integrally cast, a plurality of reinforcing blocks 307 are arranged at a joint of the inner arm 301 and the outer arms 305, and a plurality of reinforcing ribs 308 are arranged linearly outside the outer arm 305.

Based on the above structure, the outer arms 305 arranged on both sides of the inner arm 301 and the reinforcing ribs 308 arranged outside the outer arms 305 are used for reinforcing the edges of the inner arm 301, so that the edge strength of the inner arm 301 is higher, the inner arm is not easy to break in use, and the plurality of reinforcing blocks 307 arranged at the joint of the inner arm 301 and the outer arm 305 are used for further reinforcing the joint of the inner arm and the outer arm, so that the strength of the upper connecting rod 3 is improved in use.

EXAMPLE III

Referring to fig. 3, a limiting plate 304 is disposed on the first connecting shaft 302, and the limiting plate 304 is perpendicular to the first connecting shaft 302.

Based on the above structure, the limiting plate 304 is provided to prevent the upper link 3 from turning over excessively during the action.

Example four

As shown in fig. 3, the inner arm 301 is provided with a plurality of through holes 306 having a circular cross section.

Based on the above structure, the plurality of through holes 306 opened on the inner arm 301 are used to reduce the self weight of the upper link 3, so that the upper link 3 is more lightweight when in use.

The utility model discloses the theory of operation: the telescopic oil cylinder 5 is controlled to be in an extending state to drive the rear connecting rod 4 to swing backwards, the rear connecting rod 4 drives the upper connecting rod 3 to move backwards, the upper connecting rod 3 pulls the upper portion of the side edge of the bucket, so that the bucket 1 is opened upwards to be in a carrying state, the telescopic oil cylinder 5 is controlled to be in a shortening state to drive the rear connecting rod 4 to swing forwards, the rear connecting rod 4 drives the upper connecting rod 3 to move forwards, and the upper connecting rod 3 pushes the upper portion of the side edge of the bucket to enable the bucket 1 to be opened downwards to be in an unloading state.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. The utility model provides a connecting rod for excavator bucket convenient to use which characterized in that: the bucket is characterized by comprising a four-link assembly, wherein a bucket (1) is connected to the four-link assembly, the four-link assembly is composed of a lower connecting rod (2), an upper connecting rod (3), a rear connecting rod (4) and a bucket side edge, the front end of the lower connecting rod (2) is hinged to the lower portion of the bucket side edge, the front end of the upper connecting rod (3) is hinged to the upper portion of the bucket side edge, the rear connecting rod (4) is respectively connected with the rear end of the lower connecting rod (2) and the rear end of the upper connecting rod (3), a telescopic oil cylinder (5) is arranged in the middle of the lower connecting rod (2), and the telescopic end of the telescopic oil cylinder (5) is connected with the middle of the rear connecting rod (4) and drives the rear connecting rod (4) to swing;

upper portion connecting rod (3) include inner arm (301), the both ends of inner arm (301) are fixed with first connecting axle (302) and second connecting axle (303) respectively, first connecting axle (302) are articulated with rear portion connecting rod (4), second connecting axle (303) are articulated with scraper bowl side upper portion, the opposite flank of inner arm (301) all is fixed with outer arm (305), outer arm (305) are fixed respectively with first connecting axle (302) and second connecting axle (303), inner arm (301), first connecting axle (302), second connecting axle (303) and two outer arms (305) are casting shaping as an organic whole.

2. The convenient link for an excavator bucket of claim 1 wherein: the width of the outer arm (305) is twice of the thickness of the inner arm (301), and the inner arm (301) is located in the middle of the outer arm (305).

3. The conveniently used connecting rod for an excavator bucket according to claim 1, wherein: shaft holes are formed in the central axis of the first connecting shaft (302) and the central axis of the second connecting shaft (303), and wear-resistant steel sleeves are arranged on the inner walls of the shaft holes.

4. The convenient link for an excavator bucket of claim 1 wherein: a limiting plate (304) is arranged on the first connecting shaft (302), and the limiting plate (304) is perpendicular to the first connecting shaft (302).

5. The convenient link for an excavator bucket of claim 1 wherein: a plurality of through holes (306) are formed in the inner arm (301), and the cross section of each through hole (306) is of a circular structure.

6. The convenient link for an excavator bucket of claim 1 wherein: and a plurality of reinforcing blocks (307) are arranged at the joint of the inner arm (301) and the outer arm (305).

7. The convenient link for an excavator bucket of claim 1 wherein: the outer side of the outer arm (305) is provided with a plurality of reinforcing ribs (308), and the reinforcing ribs (308) are arranged in a linear mode.