Screening bucket of excavator
By designing a detachable screening bucket with a bolt-fixed structure, the problem of unfixed screening frame caused by wear of self-locking straps in the prior art is solved, and the rapid replacement and strength of the screening bucket is achieved. Guarantee, improving the convenience of use.
Patent Information
- Application Number
- CN202421272346.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-05
AI Technical Summary
After screening the earth for the existing excavator screening bucket, the self-locking strap will wear out after screening the earth for multiple times, resulting in no longer being fixed between the screening frame and the screening frame, affecting the use of the bucket.
An excavator screening bucket including a bucket bottom plate, a bucket top plate and a screening barrel structure is designed. The screening barrel structure is separated into block units by a rear plate, a front annular frame, a transverse frame and a vertical frame. Each block unit is equipped with a removable screening plate and is bolted to ensure the connection strength.
Through the removable screening plate and bolt fixing structure, the rapid replacement of the screening bucket and the strength guarantee are achieved, avoiding the screening plate falling off, and allowing the damaged screening plate to be replaced separately, improving the convenience of use.
Smart Images
Figure CN222477571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of excavator buckets, in particular to an excavator screening bucket. Background Art
[0002] In civil engineering, common earthworks include: site leveling, foundation pit and trench excavation, roadbed excavation, civil air defense excavation, ground filling, roadbed filling and foundation pit backfilling. In order to reduce the construction cost of earthwork, the earthwork can be reused. The screening bucket can screen and reuse the earthwork. In the existing earthwork engineering, when transporting materials, the materials are often screened by an excavator bucket. The screening shovel generally has an integrated frame and a screening grid. If the size of the sieve hole needs to be changed, the screening bucket needs to be replaced as a whole, which is not convenient for quick replacement. A Chinese patent discloses a patent called a screening machine for earthwork engineering construction, and its announcement number is CN216757109U. The specification describes that a self-locking strap 4 is connected to the fixed through hole 6. This structure allows the user to install and fix the screening inner net basket 9 and the screening frame 8 through the self-locking strap 4. When the user needs to replace the screening inner net basket 9, it can be easily and quickly disassembled. However, after the bucket has screened the earthwork many times, the self-locking strap will be worn, and the strength of the self-locking strap is limited. Under the gravity of the earthwork, the self-locking strap may break, and then the screening inner net frame and the screening frame are no longer fixed to each other, affecting the use of the bucket. Therefore, those skilled in the art provide an excavator screening bucket to solve the problems raised in the above background technology. Utility Model Content
[0003] The utility model aims to provide an excavator screening bucket to solve the problems raised in the above background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] An excavator screening bucket comprises a bucket bottom plate, a shovel tooth is detachably mounted on the left end of the bucket bottom plate, a bucket rear wall and a bucket front beam are respectively fixedly connected to the left and right sides of the upper surface of the bucket bottom plate, a bucket top plate is fixedly connected to the bucket rear wall and the top of the bucket front beam, a mounting connector is fixedly connected to the upper surface of the bucket top plate, a motor is mounted on the right side of the bucket rear wall, a driving end of the motor extends to the left side of the bucket rear wall, and a screening drum structure is connected to the driving end of the motor;
[0006] The screening cylinder structure includes a rear plate and a front annular frame, the rear plate is fixedly connected to the driving end of the motor, transverse frames are fixedly connected equidistantly between the rear plate and the front annular frame, vertical frames are fixedly connected between two adjacent transverse frames, the vertical frames and the transverse frames divide the cylinder wall of the screening cylinder structure into block units of the same size, and a screening plate is bolted inside each block unit.
[0007] As a further solution of the utility model: the surface of the screening plate is provided with screening holes at equal intervals.
[0008] As a further solution of the utility model: a mounting block is provided at the corner of each block-shaped unit, and the mounting block is respectively fixed to the intersection of the rear plate and the transverse frame, the front annular frame and the transverse frame, and the vertical frame and the transverse frame; the four corners of the screening plate are respectively fixed to the screw holes on the surface of the mounting block by bolts.
[0009] As a further solution of the utility model: the screw hole inside the mounting block is a blind hole, and the opening direction is toward the outside of the screening cylinder structure.
[0010] As a further solution of the utility model: a discharge port is provided on the lower surface of the bucket bottom plate, and the discharge port is located directly below the side of the screening drum structure.
[0011] As a further solution of the utility model: a bottom baffle is fixedly connected to the upper surface of the bucket bottom plate, the bottom baffle is located at the lower side of the front annular frame, an extension plate is fixedly connected to the upper surface of the bottom baffle, and the extension plate extends to the interior of the screening drum structure.
[0012] As a further solution of the utility model: a top baffle is fixedly connected to the lower surface of the bucket top plate, and the top baffle is located above the front annular frame.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] By setting up a detachable screening plate, screening plates with sieve holes of different apertures can be selected for installation according to different needs, so as to screen the soil and stone materials. The use of bolts to fix the screening plate and the mounting block can ensure the connection strength between the screening plate and the mounting block to prevent the screening plate from falling off. At the same time, the damaged screening plate can also be replaced separately, which is more convenient. At the same time, an extension plate is also provided to extend into the screening cylinder structure, which can prevent part of the soil and stone materials from falling from the gap between the bottom of the bucket and the screening cylinder structure when digging soil and stone materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of an excavator screening bucket;
[0016] Figure 2 A schematic diagram of the internal structure of an excavator screening bucket;
[0017] Figure 3 This is a partial enlarged view of the connection between the horizontal and vertical frames of an excavator screening bucket.
[0018] In the figure: 1. bucket bottom plate; 2. bucket top plate; 3. bucket rear wall; 4. mounting connector; 5. bucket front beam; 6. bucket teeth; 7. motor; 8. screening cylinder structure; 81. rear plate; 82. front ring frame; 83. vertical frame; 84. horizontal frame; 85. screening plate; 86. mounting block; 87. block unit; 9. discharge port; 10. bottom baffle; 11. extension plate; 12. top baffle. DETAILED DESCRIPTION
[0019] See also Figures 1 to 3 In an embodiment of the utility model, an excavator screening bucket includes a bucket bottom plate 1, a shovel tooth 6 is detachably installed on the left end of the bucket bottom plate 1, a bucket rear wall 3 and a bucket front beam 5 are respectively fixedly connected to the left and right sides of the upper surface of the bucket bottom plate 1, a bucket top plate 2 is commonly fixedly connected to the top of the bucket rear wall 3 and the bucket front beam 5, a mounting connector 4 is fixedly connected to the upper surface of the bucket top plate 2, a motor 7 is installed on the right side of the bucket rear wall 3, a driving end of the motor 7 extends to the left side of the bucket rear wall 3, and a screening cylinder structure 8 is connected to the driving end of the motor 7.
[0020] The screening cylinder structure 8 includes a rear plate 81 and a front annular frame 82. The rear plate 81 is fixedly connected to the driving end of the motor 7. Transverse frames 84 are fixedly connected equidistantly between the rear plate 81 and the front annular frame 82. Vertical frames 83 are fixedly connected between two adjacent transverse frames 84. The vertical frames 83 and the transverse frames 84 divide the cylinder wall of the screening cylinder structure 8 into block units 87 of the same size, and a screening plate 85 is bolted inside each block unit 87.
[0021] Preferably, the surface of the screening plate 85 is provided with screening holes at equal intervals.
[0022] Preferably, a mounting block 86 is provided at the corner of each block unit 87, and the mounting block 86 is respectively fixed to the intersection of the rear plate 81 and the transverse frame 84, the front annular frame 82 and the transverse frame 84, and the vertical frame 83 and the transverse frame 84, and the four corners of the bottom screening plate 85 are respectively fixed to the screw holes on the surface of the mounting block 86 by bolts.
[0023] Preferably, the screw hole inside the mounting block 86 is a blind hole, and the opening direction faces the outside of the screening cylinder structure 8 .
[0024] Preferably, a discharge port 9 is provided on the lower surface of the bucket bottom plate 1 , and the discharge port 9 is located directly below the side of the screening drum structure 8 .
[0025] Preferably, a bottom baffle 10 is fixedly connected to the upper surface of the bucket bottom plate 1 , and the bottom baffle 10 is located at the lower side of the front annular frame 82 . An extension plate 11 is fixedly connected to the upper surface of the bottom baffle 10 , and the extension plate 11 extends to the interior of the screening drum structure 8 .
[0026] Preferably, a top baffle 12 is fixedly connected to the lower surface of the bucket top plate 2 , and the top baffle 12 is located above the front annular frame 82 .
[0027] The working principle of the utility model is as follows: when the screening bucket is used, the screening bucket is installed on the front arm of the excavator by installing the connecting piece 4. When the screening bucket is used for operation, earth can be excavated into the interior of the screening drum structure 8. The earth and stone materials can be guided by the extension plate 11, and all the excavated materials can be transported to the interior of the screening drum structure 8 to prevent the earth and stone materials from falling from the gap between the screening drum structure 8 and the bucket bottom plate 1. By turning on the motor 7, the screening drum structure 8 is rotated as a whole to screen the earth, and the smaller earth and stone materials can be discharged from the discharge port 9 through the sieve holes on the surface of the screening plate 85, while the larger ones can be discharged from the discharge port 9. The soil and stone materials will stay inside the screening drum structure 8, thereby screening the soil. When fine screening is required, the screening plate 85 can be replaced by removing the bolts, removing the screening plate 85 and reinstalling the screening plate 85 with different aperture sizes to the block unit 87. Then, the motor 7 is turned on to rotate the screening drum structure 8 for screening. The screening plates 85 need to be replaced separately during the replacement process. However, since they are fixed with bolts and the screw holes are blind holes, the soil and stone materials can be prevented from getting stuck in the screw holes. In addition, when a screening plate 85 is damaged, the single screening plate 85 can be disassembled and replaced.
[0028] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. An excavator screening bucket, comprising a bucket bottom plate (1), characterized in that: A shovel tooth (6) is detachably mounted on the left end of the bucket bottom plate (1); a bucket rear wall (3) and a bucket front beam (5) are respectively fixedly connected to the left and right sides of the upper surface of the bucket bottom plate (1); a bucket top plate (2) is fixedly connected to the top of the bucket rear wall (3) and the bucket front beam (5); a mounting connector (4) is fixedly connected to the upper surface of the bucket top plate (2); a motor (7) is mounted on the right side of the bucket rear wall (3); a drive end of the motor (7) extends to the left side of the bucket rear wall (3); and a screening drum structure (8) is connected to the drive end of the motor (7); The screening cylinder structure (8) comprises a rear plate (81) and a front annular frame (82), the rear plate (81) being fixedly connected to the driving end of the motor (7), a transverse frame (84) being fixedly connected equidistantly between the rear plate (81) and the front annular frame (82), a vertical frame (83) being fixedly connected between two adjacent transverse frames (84), the vertical frame (83) and the transverse frame (84) dividing the cylinder wall of the screening cylinder structure (8) into block units (87) of the same size, and a screening plate (85) is bolted inside each of the block units (87).
2. An excavator screening bucket according to claim 1, characterized in that: The surface of the screening plate (85) is provided with screening holes at equal intervals.
3. The excavator screening bucket according to claim 1, characterized in that: A mounting block (86) is provided at a corner of each block-shaped unit (87). The mounting block (86) is respectively fixed to the intersection of the rear plate (81) and the transverse frame (84), the front annular frame (82) and the transverse frame (84), and the vertical frame (83) and the transverse frame (84). The four corners of the screening plate (85) are respectively fixed to the screw holes on the surface of the mounting block (86) by bolts.
4. The excavator screening bucket according to claim 3, characterized in that: The screw hole inside the mounting block (86) is a blind hole, with the opening direction facing the outside of the screening cylinder structure (8).
5. The excavator screening bucket according to claim 1, characterized in that: A discharge port (9) is provided on the lower surface of the bucket bottom plate (1), and the discharge port (9) is located directly below the side of the screening drum structure (8).
6. The excavator screening bucket according to claim 1, characterized in that: A bottom baffle (10) is fixedly connected to the upper surface of the bucket bottom plate (1), the bottom baffle (10) is located at the lower side of the front annular frame (82), and an extension plate (11) is fixedly connected to the upper surface of the bottom baffle (10), the extension plate (11) extends into the interior of the screening drum structure (8).
7. The excavator screening bucket according to claim 1, characterized in that: A top baffle (12) is fixedly connected to the lower surface of the bucket top plate (2), and the top baffle (12) is located above the front annular frame (82).