TWM624260U - Bucket with sand screening function - Google Patents

Abstract

A digging bucket with sand screening function, including a bucket body with bucket teeth, an opening on the back side, and a pivot part at one end of the opening close to the bucket teeth; a screen with an area not smaller than the opening, the front end of which is pivoted A connecting arm is arranged at the rear end of the pivot portion; and a driving device is provided with a rotating shaft, the rotating shaft is fixedly connected with an eccentric shaft member, and the eccentric shaft member is pivotally connected to the connecting arm. The driving device drives the rotating shaft, the rotating shaft drives the eccentric shaft, and the eccentric shaft pulls the connecting arm, and then drives the screen to swing back and forth, thereby screening out the sand and gravel in the bucket with a particle size smaller than the screen.

Description

Bucket with sand screening function

This creation is related to an excavator, especially a bucket of an excavator.

Excavators play an important role in engineering by using mechanical power to move a large amount of soil and rocks that cannot be loaded by human beings. The excavator has a long arm, and the end is provided with a swingable bucket, which can perform the actions of digging downward and carrying upward. However, the main purpose of the excavator is to dig out large stones, not sand with smaller particle size. Therefore, there is a conventional bucket with sieve holes on the bucket body to make the sand with smaller particle size. It can fall out of the sieve, leaving only large stones.

However, the sand and gravel sometimes get stuck in the gap between the large stones and do not fall out, so the operator of the excavator uses the quick operation lever to make the bucket move quickly and repeatedly, in order to throw out the sand and gravel and automatically. The sieve hole fell out. However, this method requires the operator to operate quickly, consumes a lot of mental and physical strength, and the excavator is usually driven by hydraulic pressure, which cannot accurately reflect the subtler operations, so the effect is limited.

Another conventional excavator bucket, as disclosed in New Patent Publication No. M378247, is that a rotatable sieve drum is arranged inside the shovel, and the sieve drum rotates when the bucket is used to dig up soil and rocks. By turning the soil and stone, the sand and stone with smaller particle size can be loosened and dropped out of the sieve hole. Although the above-mentioned conventional device can reduce the labor and effort of the operator, its structure is complicated and the installation cost is high.

In view of this, how to improve the above problem is the primary issue that this creation intends to solve.

The main purpose of this creation is to provide a bucket with a sand screening function, which uses a simple and low-cost device to achieve the effect of improving the sand screening efficiency of the bucket.

In order to achieve the aforementioned purpose, this creation provides a bucket with a sand screening function, which includes: a bucket body with bucket teeth, an opening is arranged on the back side of the bucket, and an end of the opening close to the bucket tooth is provided with a pivot part; a screen with an area not smaller than the opening, the front end of which is pivoted on the pivot portion, and the rear end is provided with a connecting arm; A driving device is provided with a rotating shaft, the rotating shaft is fixedly connected with an eccentric shaft, the eccentric shaft is pivotally connected to the connecting arm, the driving device drives the rotating shaft, the rotating shaft drives the eccentric shaft, and the eccentric shaft pulls the connection arm, and then drive the screen to swing back and forth.

Preferably, the driving device includes a motor and a gear box, and the rotating shaft protrudes from the gear box.

The above objects and advantages of the present invention can be easily understood from the detailed description and accompanying drawings of the selected embodiments below.

Please refer to Figures 1 to 3, which show the sand-screening bucket provided for this creation, which includes a bucket body 1 , a screen 2 and a driving device 3 . The bucket body 1 is surrounded by a chamber 11 that can hold sand and gravel. One side of the bucket body 1 is provided with bucket teeth 12, and the back side is provided with an opening 13. One end of the opening 13 close to the bucket tooth 12 is provided with a plurality of hollow cylindrical shapes. The first pivot portion 14.

On the other hand, the screen mesh 2 is a net-like structure composed of a plurality of strip-shaped metal rods intersecting, and a screen hole 21 is formed between the rods. The area of the screen 2 is not smaller than the opening 13 . The screen 2 is provided with a plurality of hollow cylindrical second pivot portions 22 at the front end of the rod, which can be coaxially aligned with the first pivot portion 14 and pass through the first pivot portion with a shaft 23 14 and the second pivoting portion 22, according to which the screen mesh 2 and the bucket body 1 are connected, so that the screen mesh 2 can pivot relative to the bucket body 1.

The driving device 3 is disposed on the back side of the bucket body 1, and includes a motor 31 and a gear box 32. Two sides of the gear box 32 respectively protrude a rotating shaft 33, and the rotating shaft 33 is fixedly connected with an eccentric shaft member 34, wherein The end of the eccentric shaft member 34 has an output end 341 located in a different axial direction from the rotating shaft 33 . Each output end 341 is pivotally connected to a connecting arm 35 , and the connecting arm 35 is pivotally connected to the rod at the rear end of the screen 2 . .

With the above structure, as shown in Figures 4 and 5, when the motor 31 starts and drives the rotating shaft 33 to rotate through the gear box 32, the rotating shaft 33 drives the eccentric shaft member 34, so that the output end 341 forms the rotating shaft. 33 is the center of the circular motion, and then pulls the connecting arm 35 to produce displacement, and drives the screen 2 to swing back and forth.

In the actual use of the invention, after the operator manipulates the bucket to dig up the soil and rocks, there is no need to quickly operate the control lever in order to swing the bucket, but only needs to start the motor 31, and the screen 2 can be reciprocated by the aforementioned transmission method. According to this, the soil and stone are turned over, so that the sand and stone with smaller particle size fall out from the screen 2, so as to achieve the purpose of sieving.

The invention can achieve the purpose of screening fine sand and gravel with a simple structure, and the screening effect is good, so it has the advantages of low cost, and at the same time, it can reduce the operator's effort to operate the excavator.

However, the disclosure of the above embodiments is only used to illustrate the present creation, not to limit the present creation, and the replacement of equivalent elements should still belong to the scope of the present creation.

To sum up, those skilled in the art can understand that this creation can indeed achieve the above-mentioned purpose, which is in compliance with the provisions of the Patent Law, and can file an application in accordance with the law.

1: bucket body 11: Room 12: bucket teeth 13: Opening 14: The first pivot part 2: Screen 21: Sieve 22: The second pivot part ２３: Shaft 3: Drive device ３１: Motor ３２: Gearbox 33: Spindle 34: Eccentric shaft 341: output terminal 35: connecting arm

Figures 1 and 2 are three-dimensional schematic diagrams of this creation; Figure 3 is a three-dimensional exploded schematic diagram of the creation; Figures 4 and 5 are schematic diagrams of the action state of the creation.

1: bucket body

2: Screen

3: Drive device

31: Motor

32: Gearbox

34: Eccentric shaft

35: connecting arm

Claims (2)

A bucket with a sand screening function, comprising: a bucket body with bucket teeth, an opening is arranged on the back side of the bucket, and an end of the opening close to the bucket tooth is provided with a pivot part; a screen with an area not smaller than the opening, the front end of which is pivoted on the pivot portion, and the rear end is provided with a connecting arm; A driving device is provided at an end of the opening away from the bucket teeth. The driving device is provided with a rotating shaft. The rotating shaft is fixedly connected to an eccentric shaft, and the eccentric shaft is pivotally connected to the connecting arm, so that the driving device can drive the connecting arm. A rotating shaft, the rotating shaft drives the eccentric shaft, the eccentric shaft pulls the connecting arm, and then drives the screen to swing back and forth. The bucket with sand screening function as claimed in claim 1, wherein the driving device includes a motor and a gear box, and the rotating shaft is protruded from the gear box.

Images