A co-frequency vibration screening bucket for an excavator

Abstract

The present invention discloses a same-frequency vibration type screening bucket for an excavator, comprising: a screening bucket main body fixedly installed on an excavator working arm; a screening mechanism disposed at the bottom of the screening bucket main body for screening the materials inside the screening bucket main body; a power mechanism fixedly connected to the top of the screening bucket main body; and a transmission mechanism disposed on the left and right sides of the screening bucket main body and rotatably connected thereto, wherein the input end of the transmission mechanism is fixedly connected to the output end of the power mechanism to drive the screening mechanism. The present invention has the advantage of stable operation, and solves the problems that in the process of using the existing vibration type screening bucket of an excavator, it is not convenient to prevent larger waste in the materials from getting stuck on the screening bucket, which increases the failure rate during the working process of the screening bucket and reduces the screening efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery, and specifically relates to a synchronous vibration screening bucket for an excavator. Background Art

[0002] A screening bucket is an attachment for an excavator, used to screen materials such as earth and stone excavated, and can remove waste such as gravel and branches, and collect materials suitable for utilization or backfilling. Now, in sand and gravel separation, soil remediation and backfilling and reuse projects, etc., screening buckets installed on excavators or loaders are often used. Such screening buckets can be divided into two categories: rotary type and vibration type.

[0003] It is very easy for gravel and sundries to get stuck between the support rollers and the screening drum of the rotary screening bucket, thus affecting the rotation of the screening drum. The mesh holes of this type of screening bucket are fixed and are also easily blocked by materials, thus affecting the screening efficiency. The bottom of the vibration screening bucket is provided with a mesh frame that can move up and down driven by a crank-roller linkage. When the mesh frame moves up and down at a high frequency, it has a good vibration effect and achieves the purpose of material separation. Although the vibration screening bucket can improve the deficiency of the drum screening bucket that is easily blocked due to the fixed mesh, small foreign objects are also very easy to get stuck in the gaps between the mesh frames, causing the mesh frames to be stuck and the machine to stop, affecting the production efficiency.

[0004] A screening bucket for an excavator with a patent application number of 202110603143.1 realizes the rapid screening of materials by setting a screening bucket that can rotate reciprocally, but the materials are easily blocked on the screening bucket.

[0005] During the use of the existing vibration screening bucket for an excavator, it is not convenient to prevent larger waste in the materials from getting stuck on the screening bucket, increasing the failure rate during the operation of the screening bucket and reducing the screening efficiency. Summary of the Invention

[0006] The purpose of the present invention is to provide a synchronous vibration screening bucket for an excavator, which has the advantage of stable operation, and solves the problem that during the use of the existing vibration screening bucket for an excavator, it is not convenient to prevent larger waste in the materials from getting stuck on the screening bucket, increasing the failure rate during the operation of the screening bucket and reducing the screening efficiency.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A synchronous vibration screening bucket for an excavator, comprising:

[0008] A screening bucket main body, which is fixedly installed on the working arm of the excavator;

[0009] A screening mechanism, which is arranged at the bottom of the screening bucket main body and screens the materials inside the screening bucket main body;

[0010] A power mechanism, which is fixedly connected to the top of the screening bucket body;

[0011] A transmission mechanism, which is arranged on the left and right sides of the screening bucket body and is rotatably connected thereto. The input end of the transmission mechanism is fixedly connected to the output end of the power mechanism to drive the screening mechanism.

[0012] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, the screening bucket body includes a bucket body. A connecting frame and a protective shell are respectively fixedly connected to the top of the bucket body. A first partition board and a second partition board are respectively fixedly connected to the left and right sides of the bucket body. Working cavities for accommodating the power mechanism are arranged on both the left and right sides of the bucket body.

[0013] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, mounting holes are formed on both the left and right sides of the bucket body.

[0014] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, a shovel plate is fixedly connected to the front side of the bottom of the bucket body, and a clamping plate is fixedly connected to the top of the shovel plate.

[0015] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, the screening mechanism includes a mounting frame, and a plurality of curved rollers are rotatably connected inside the mounting frame.

[0016] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, a rotation hole adapted to the diameter of the curved roller is formed inside the mounting frame, and a clamping head is integrally formed at the front end of the mounting frame.

[0017] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, a first bending portion is arranged at the top of the curved roller, a second bending portion is arranged at the bottom of the curved roller, and the bending directions of the first bending portion and the second bending portion are opposite.

[0018] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, the power mechanism includes a motor. A rotating rod is fixedly connected to the output shaft of the motor. A small gear is fixedly sleeved on the surface of the rotating rod. A first large gear is meshed with the bottom of the small gear, and a second large gear is meshed with the bottom of the first large gear.

[0019] Preferably, as a synchronous vibration type screening bucket for an excavator according to the present invention, the transmission mechanism includes a plurality of driving gears and intermediate gears. The intermediate gears are arranged inside the driving gears and are meshed with two adjacent driving gears.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The present invention drives the curved rollers by arranging multiple rotatable curved rollers and using a power mechanism and a transmission mechanism. The spatial arrangement positions of the curved rollers are the same and they rotate synchronously in the same direction. The spatial gap between the curved rollers always remains unchanged. During the rotation of the curved rollers, the first curved part and the second curved part provided on the surface of the curved rollers can make the material bump up and down in the hopper body to achieve a vibration effect, and the material will not be stuck by the curved rollers. By controlling the rotation speed of the motor, the rotation speed of the curved rollers can be adjusted to achieve different vibration frequencies, meeting the screening requirements of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front axonometric view of the present invention;

[0023] Figure 2 is the right - hand sectional axonometric view of the present invention;

[0024] Figure 3 is the front - view exploded view of the screening hopper main body of the present invention;

[0025] Figure 4 is the front axonometric view of the screening mechanism of the present invention;

[0026] Figure 5 is the front axonometric view of the mounting bracket of the present invention;

[0027] Figure 6 is the front axonometric view of the curved roller of the present invention;

[0028] Figure 7 is the front axonometric view of the power mechanism of the present invention;

[0029] Figure 8 is the front axonometric view of the transmission mechanism of the present invention.

[0030] In the figure: 1. Screening hopper main body; 101. Hopper body; 102. Connecting frame; 103. Protective shell; 104. First partition; 105. Clamping plate; 106. Shoveling plate; 107. Mounting hole; 108. Second partition; 109. Working cavity; 2. Screening mechanism; 201. Mounting bracket; 202. Curved roller; 203. Rotating hole; 204. Clamping head; 205. First curved part; 206. Second curved part; 3. Power mechanism; 301. Motor; 302. Rotating rod; 303. Second large gear; 304. Small gear; 305. First large gear; 4. Transmission mechanism; 401. Intermediate gear; 402. Driving gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Embodiment 1

[0032] Please refer to Figures 1 - 8 , a synchronous vibration type screening bucket for an excavator, including a screening bucket main body 1, and the screening bucket main body 1 is fixedly installed on the working arm of the excavator.

[0033] Further, the screening bucket main body 1 includes a bucket body 101. A connecting frame 102 and a protective shell 103 are respectively and fixedly connected to the top of the bucket body 101. The connecting frame 102 is used to install the bucket body 101. A first partition plate 104 and a second partition plate 108 are respectively and fixedly connected to the left and right sides of the bucket body 101. Working cavities 109 for accommodating the power mechanism 3 are arranged on both the left and right sides of the bucket body 101.

[0034] Further, mounting holes 107 are formed on both the left and right sides of the bucket body 101. The left and right ends of the curved roller 202 are located on the inner wall of the mounting holes 107 and are rotatably connected.

[0035] Further, a shovel plate 106 is fixedly connected to the front side of the bottom of the bucket body 101. A clamping plate 105 is fixedly connected to the top of the shovel plate 106. A clamping head 204 is fixedly connected to the opposite sides of the shovel plate 106 and the clamping plate 105. The top of the mounting frame 201 is fixedly connected to the surface of the bucket body 101.

[0036] Further, a screening mechanism 2 is further included. The screening mechanism 2 is arranged at the bottom of the screening bucket main body 1 and screens the materials inside the screening bucket main body 1.

[0037] Further, the screening mechanism 2 includes a mounting frame 201. A plurality of curved rollers 202 are rotatably connected inside the mounting frame 201. The left and right ends of the curved rollers 202 are rotatably connected to the opposite sides of the first partition plate 104 and the second partition plate 108.

[0038] Further, a rotating hole 203 adapted to the diameter of the curved roller 202 is formed inside the mounting frame 201. A clamping head 204 formed integrally is arranged at the front end of the mounting frame 201.

[0039] Further, a first bending part 205 is arranged at the top of the curved roller 202, and a second bending part 206 is arranged at the bottom of the curved roller 202. The bending directions of the first bending part 205 and the second bending part 206 are opposite.

[0040] Specifically, by arranging a plurality of rotatable curved rollers 202, and using the power mechanism 3 and the transmission mechanism 4 to drive the curved rollers 202, the spatial arrangement positions of the curved rollers 202 are the same and rotate synchronously in the same direction. The spatial gap between the curved rollers 202 always remains unchanged. During the rotation of the curved rollers 202, the first bending part 205 and the second bending part 206 arranged on the surface of the curved rollers 202 can make the materials in the bucket body 101 bump up and down to achieve a vibration effect while the materials will not be stuck by the curved rollers 202.

[0041] Further, a power mechanism 3 is further included. The number of the power mechanisms 3 is two and they are fixedly connected to the top of the screening bucket main body 1.

[0042] Further, the power mechanism 3 includes a motor 301. A rotating rod 302 is fixedly connected to the output shaft of the motor 301. A small gear 304 is fixedly sleeved on the surface of the rotating rod 302. A first large gear 305 is engaged with the bottom of the small gear 304. A second large gear 303 is engaged with the bottom of the first large gear 305. The first large gear 305 and the second large gear 303 are rotatably connected to the inner wall of the working cavity 109. The second large gear 303 is engaged with the topmost driving gear 402.

[0043] Further, the motor 301 is fixedly connected to the inner wall of the protective shell 103. By controlling the rotation speed of the motor 301, the rotation speed of the curved roller 202 can be adjusted to achieve different vibration frequencies, meeting the screening requirements of different materials.

[0044] Further, a transmission mechanism 4 is further included. The number of the transmission mechanisms 4 is two and they are arranged on the left and right sides of the screening hopper main body 1 and rotatably connected thereto. The input end of the transmission mechanism 4 is fixedly connected to the output end of the power mechanism 3 to drive the screening mechanism 2.

[0045] Further, the transmission mechanism 4 includes a plurality of driving gears 402 and intermediate gears 401. The intermediate gears 401 are arranged inside the driving gears 402 and are engaged with two adjacent driving gears 402. The intermediate gears 401 and the driving gears 402 are rotatably connected to the inner wall of the working cavity 109. The driving gears 202 are fixedly sleeved on the left and right ends of the curved roller 202.

[0046] Specifically, through the combined use of the power mechanism 3 and the transmission mechanism 4, multiple curved rollers 202 can be driven simultaneously. The output shaft of the motor 301 drives the rotating rod 302 to rotate. The rotating rod 302 drives the small gear 304 to rotate. The small gear 304 drives the two mutually engaged first large gear 305 and second large gear 303 at the bottom to rotate. The second large gear 303 drives the topmost driving gear 402 to rotate. The power is transmitted between the multiple driving gears 402 through the intermediate gears 401 engaged therewith, enabling the multiple driving gears 402 to work simultaneously. When the multiple driving gears 402 work, they rotate in the same direction due to the transmission of the intermediate gears 401, driving the multiple curved rollers 202 to rotate in the same direction, thereby realizing the vibration screening of materials.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A same-frequency vibration screening bucket for an excavator, characterized in that, Comprising: A screening bucket main body (1), which is fixedly installed on the working arm of an excavator; A screening mechanism (2), which is arranged at the bottom of the screening bucket main body (1) and screens the materials inside the screening bucket main body (1); A power mechanism (3), which is fixedly connected to the top of the screening bucket main body (1); A transmission mechanism (4), which is arranged on the left and right sides of the screening bucket main body (1) and is rotatably connected thereto. The input end of the transmission mechanism (4) is fixedly connected to the output end of the power mechanism (3) to drive the screening mechanism (2); The screening bucket main body (1) includes a bucket body (101). A connecting frame (102) and a protective shell (103) are respectively fixedly connected to the top of the bucket body (101). A first partition plate (104) and a second partition plate (108) are respectively fixedly connected to the left and right sides of the bucket body (101). Working cavities (109) for accommodating the power mechanism (3) are arranged on both the left and right sides of the bucket body (101); Installation holes (107) are formed on both the left and right sides of the bucket body (101); A shovel plate (106) is fixedly connected to the front side of the bottom of the bucket body (101), and a clamping plate (105) is fixedly connected to the top of the shovel plate (106); The screening mechanism (2) includes an installation frame (201), and a plurality of curved rollers (202) are rotatably connected inside the installation frame (201); A rotating hole (203) adapted to the diameter of the curved roller (202) is formed inside the installation frame (201), and a chuck (204) integrally formed is arranged at the front end of the installation frame (201); A first bending portion (205) is arranged at the top of the curved roller (202), and a second bending portion (206) is arranged at the bottom of the curved roller (202). The bending directions of the first bending portion (205) and the second bending portion (206) are opposite; The power mechanism (3) includes a motor (301). A rotating rod (302) is fixedly connected to the output shaft of the motor (301). A small gear (304) is fixedly sleeved on the surface of the rotating rod (302). A first large gear (305) is engaged with the bottom of the small gear (304), and a second large gear (303) is engaged with the bottom of the first large gear (305); The transmission mechanism (4) includes a plurality of driving gears (402) and an intermediate gear (401). The intermediate gear (401) is arranged inside the driving gears (402) and is engaged with two adjacent driving gears (402).

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