CN222575585U

CN222575585U - A connecting device for an excavator bucket

Info

Publication number: CN222575585U
Application number: CN202421316602.3U
Authority: CN
Inventors: 张江涛
Original assignee: Shaanxi Western Heavy Industry Co ltd
Current assignee: Shaanxi Western Heavy Industry Co ltd
Priority date: 2024-06-11
Filing date: 2024-06-11
Publication date: 2025-03-07
Anticipated expiration: 2034-06-11

Abstract

The utility model belongs to the technical field of excavator connection, and specifically relates to a connection device for an excavator bucket, comprising a connection plate, a U-shaped groove is provided in the middle of one end of the connection plate, annular sleeves are fixedly connected on both sides of the U-shaped groove of the connection plate, sleeves are provided at both ends of the connection plate, one sleeve is slidably connected with the annular sleeve, and the other sleeve is also fixedly connected with the other end of the connection plate, threads are provided in both sleeves, pins are threadedly connected in each sleeve, the inner end of the pin is fixedly assembled and connected with a threaded sleeve, the threaded sleeve is threadedly connected with the sleeve, and a positioning ring is fixedly connected at the outer end of the pin; the utility model has a simple structure, and the extension length of the pin can be adjusted, so that excavators and buckets of different models can be connected, and at the same time, the various components of the connection device are easy to disassemble, and at the same time, it is easy to install the bucket and the connection device, and the structure is stable.

Description

Connecting device for excavator bucket

Technical Field

The utility model belongs to the technical field of excavator connection, and particularly relates to a connecting device for an excavator bucket.

Background

An excavator, also called an excavating machine, 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. In recent years, development of engineering machinery is relatively fast, and the excavator has become one of the most important engineering machinery in engineering construction;

The bucket connecting device of the excavator is a device for connecting a bucket and a force arm, in the prior art, the bucket and the force arm are usually connected in a hinged mode, but the length of a hinged shaft is usually fixed, and when the bucket is replaced, an adaptive pin shaft is also required to be found, so that the bucket can be replaced, and the length of the connecting device cannot be changed to adapt to the replacement of the bucket.

Disclosure of utility model

The utility model aims to provide a connecting device for an excavator bucket, which aims to solve the problems in the background technology.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

The utility model provides a connecting device for excavator bucket, includes the connecting plate, U type groove has been seted up at the one end middle part of connecting plate, the equal fixedly connected with ring cover in U type groove both sides of connecting plate, the connecting plate both ends all are equipped with the sleeve, one sleeve and ring cover sliding connection, another the sleeve with the other end of connecting plate is fixed connection also, be equipped with the screw thread in the sleeve, two equal threaded connection has the pin rod in the sleeve, the inner fixedly connected with thread bush of pin rod, thread bush and sleeve threaded connection, pin rod outer end fixedly connected with holding ring.

Preferably, the middle parts of two sides of the connecting plate are vertically provided with arc grooves.

Preferably, the sleeve both ends can be dismantled and be connected with the end cap that the middle part offered the round pin pole hole.

Preferably, the end cap is threadably connected to the sleeve end.

Preferably, a locking mechanism is arranged between the lower side of the sleeve fixedly connected with the connecting plate and the end part of the pin rod.

Preferably, the locking mechanism comprises a sliding rod and a sliding sleeve, the end part of the sliding rod slides in the sliding sleeve, a U-shaped block is fixedly connected to the lower side of the middle part of the sleeve and the lower side of the positioning ring, the sliding sleeve slides in a hole formed in the U-shaped block, and a positioning piece is arranged between the U-shaped block fixed to the lower side of the positioning ring and the sliding rod and the sliding sleeve which are in sliding connection with the U-shaped block.

Preferably, the positioning piece comprises a screw, the screw slides in a through hole formed in the sliding rod and the U-shaped block, and a nut is connected to the end part of the screw in a threaded manner.

Compared with the prior art, the utility model has the following advantages:

The connecting device is simple in structure, the extension length of the pin rod can be adjusted, so that different types of excavators and the bucket can be connected, meanwhile, all parts of the connecting device are convenient to detach, meanwhile, the bucket and the connecting device are convenient to install, and the structure is stable.

According to the utility model, the locking mechanism is arranged at the sleeve below, when the positioning piece is fixed with the sliding rod and the sleeve, the three U-shaped blocks are positioned on the same straight line, so that the positioning ring fixedly connected with the U-shaped blocks cannot rotate, the pin rod cannot rotate relative to the sleeve, and the extension length of the pin rod is fixed.

Drawings

The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic view of an embodiment of a connecting device for an excavator bucket according to the present utility model;

FIG. 2 is a front view of a connecting device for an excavator bucket according to the present utility model;

FIG. 3 is a cross-sectional view of a connecting device for an excavator bucket according to the present utility model;

FIG. 4 is a schematic view of the pin of the present utility model in an extended state;

FIG. 5 is a schematic view of the pin structure of the present utility model;

The main reference numerals are as follows:

The anti-loosening device comprises a connecting plate 1, a circular sleeve 2, a sleeve 3, an end cap 31, a pin rod 4, a threaded sleeve 41, a positioning ring 42, an anti-loosening mechanism 5, a sliding rod 51, a sliding sleeve 52, a U-shaped block 53, a positioning piece 54, a screw 541 and a nut 542.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1-5, a connecting device for an excavator bucket comprises a connecting plate 1, wherein a U-shaped groove is formed in the middle of one end of the connecting plate 1, annular sleeves 2 are fixedly connected to two sides of the U-shaped groove of the connecting plate 1, sleeves 3 are arranged at two ends of the connecting plate 1, one sleeve 3 is in sliding connection with the annular sleeve 2, the other sleeve 3 is fixedly connected with the other end of the connecting plate 1, threads are arranged in the sleeves 3, a pin rod 4 is fixedly connected in the two sleeves 3, a thread sleeve 41 is fixedly connected with the inner end of the pin rod 4 in an assembling manner, the thread sleeve 41 is in threaded connection with the sleeves 3, and a positioning ring 42 is fixedly connected to the outer end of the pin rod 4.

According to the technical scheme, the connecting plate 1 is used for connecting a bucket with a connecting arm of an excavator, a pin 4 of a sleeve 3 at the upper end of the connecting plate 1 is hinged with the connecting arm, the middle part of the sleeve 3 at the upper part is hinged with a telescopic part of the connecting arm, the sleeve 3 at the upper part can be taken out of the connecting plate 1, after the telescopic part of the connecting arm is hinged with the sleeve 3, the sleeve 3 at the upper part can be installed in the annular sleeve 2, a U-shaped groove is used for giving way to the telescopic part, the telescopic part can rotate relative to the sleeve 3, the pin 4 at the upper part is used for connecting rods at two sides of the connecting arm, after the pin 4 at the upper part is connected with connecting rods at two sides of the connecting arm, a threaded sleeve 41 of the pin 4 is screwed into the sleeve 3, so that a positioning ring 42 is abutted against the outer side of the connecting arm, the distance between the two pins 4 can be adjusted through the distance of the threaded sleeve 41 screwed into the sleeve 3, and thus the excavator bucket can be matched with different excavator buckets, the pin 4 at the lower part can rotate relative to the sleeve 3, the upper pin 4 is used for connecting the telescopic part, the connecting rod 4 is located in a pin hole at the inner side of the positioning ring, and the pin hole of the positioning ring is abutted against the outer side of the bucket.

Referring to fig. 1, arc grooves are vertically formed in the middle parts of two sides of a connecting plate 1.

In this embodiment, the circular arc groove is used to reduce the weight to which the connection board 1 is subjected, and at the same time, the stress to which the circular arc connection board 1 is subjected can be reduced.

Referring to fig. 1, end caps 31 having pin holes in the middle are detachably coupled to both ends of the socket 3.

In this embodiment, the end caps 31 are used to locate the two ends of the sleeve 3, so as to avoid the sleeve 3 sliding in the annular sleeve 2, and the pin 4 can be removed from the end caps 31, so that the end caps 31 can reduce dust entering the sleeve 3.

The end cap 31 is screwed to the end of the socket 3.

In this embodiment, the end cap is removed by screwing the nut 31.

Referring to fig. 1, a locking mechanism 5 is provided between the lower side of a sleeve 3 fixedly connected with a connecting plate 1 and the end of a pin 4.

In this embodiment, the locking mechanism 5 is used to prevent relative rotation between the sleeve 3 and the set screw 41 that is assembled with the pin 4.

Referring to fig. 2-4, the anti-loosening mechanism 5 comprises a sliding rod 51 and a sliding sleeve 52, wherein the end part of the sliding rod 51 slides in the sliding sleeve 52, a U-shaped block 53 is fixedly connected to the lower side of the middle part of the sleeve 3 and the lower side of the positioning ring 42, the sliding sleeve 52 slides in a hole formed in the U-shaped block 53, and a positioning piece 54 is arranged between the U-shaped block 53 fixed to the lower side of the positioning ring 42 and the sliding rod 51 and the sliding sleeve 52 which are in sliding connection with the U-shaped block 53.

In this embodiment, the sliding rod 51 can slide in the sliding sleeve 52, so as to move along with the pin 4 according to the distance between the pin 4, when the sliding rod 51 or the sliding sleeve 52 moves out of the U-shaped block 53, the corresponding pin 4 connected with the U-shaped block 53 can rotate relative to the sleeve 3, and the positioning member 54 is used for fixing the relative positions of the sliding rod 51 and the sliding sleeve 52 and the pin 4.

Referring to fig. 4, the positioning member 54 includes a screw 541, the screw 541 slides in a through hole formed in the slide rod 51 and the U-shaped block 53, and a nut 542 is screwed to an end of the screw 541.

In this embodiment, the screw 541 is used to connect the U-shaped block 53 with the slide rod 51 and the slide sleeve 52, so that the U-shaped block 53 moves along with the slide rod 51 and the slide sleeve 52 simultaneously.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims of this utility model, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the utility model disclosed herein.

Claims

1. The connecting device for the excavator bucket is characterized by comprising a connecting plate (1), wherein a U-shaped groove is formed in the middle of one end of the connecting plate (1), circular ring sleeves (2) are fixedly connected to two sides of the U-shaped groove of the connecting plate (1), sleeves (3) are arranged at two ends of the connecting plate (1), one sleeve (3) is in sliding connection with the circular ring sleeves (2), the other sleeve (3) is fixedly connected with the other end of the connecting plate (1), threads are arranged in the sleeve (3), two pins (4) are fixedly connected in the sleeve (3), threaded sleeves (41) are fixedly assembled and connected to the inner ends of the pins (4), and positioning rings (42) are fixedly connected to the outer ends of the pins (4) in a threaded connection mode.

2. The connecting device for the excavator bucket according to claim 1, wherein the middle parts of the two sides of the connecting plate (1) are vertically provided with arc grooves.

3. The connecting device for the excavator bucket according to claim 2, wherein the end caps (31) with pin holes in the middle are detachably connected to the two ends of the sleeve (3).

4. A connecting device for an excavator bucket according to claim 3 wherein said end cap (31) is threadably connected to the end of the socket (3).

5. The connecting device for an excavator bucket according to claim 4, wherein a locking mechanism (5) is arranged between the lower side of a sleeve (3) fixedly connected with the connecting plate (1) and the end part of the pin (4).

6. The connecting device for the excavator bucket according to claim 5, wherein the anti-loosening mechanism (5) comprises a sliding rod (51) and a sliding sleeve (52), the end part of the sliding rod (51) slides in the sliding sleeve (52), a U-shaped block (53) is fixedly connected to the lower side of the middle part of the sleeve (3) and the lower side of the positioning ring (42), the sliding sleeve (52) slides in a hole formed in the U-shaped block (53), and a positioning piece (54) is arranged between the U-shaped block (53) fixed to the lower side of the positioning ring (42) and the sliding rod (51) and the sliding sleeve (52) which are in sliding connection with the U-shaped block (53).

7. The connecting device for an excavator bucket according to claim 6, wherein the positioning member (54) comprises a screw (541), the screw (541) slides in a through hole formed in the slide bar (51) and the U-shaped block (53), and a nut (542) is screwed to an end portion of the screw (541).