A bucket wheel machine
By installing extrusion plates on both sides of the bucket of the bucket wheel excavator, the problems of easy damage to the bucket teeth and coal sticking are solved, enabling the bucket wheel excavator to discharge materials efficiently in the excavation of large, hard materials and in humid environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA YINXING POWER GENERATION CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-31
AI Technical Summary
When excavating large, hard materials, the bucket teeth of existing bucket wheel excavators are easily damaged, and in humid environments, coal ore sticks to the inside of the bucket, reducing the inner wall volume.
The design incorporates extrusion plates on both sides of the bucket. Through a synchronous and extrusion structure, the extrusion plates are brought closer together to extrude and throw out damp coal, thus preventing the coal from occupying the space in the bucket head and improving the output rate.
It effectively prevents damage to the bucket teeth, improves the durability of the bucket wheel excavator in digging large, hard materials, and increases the output rate in humid environments.
Smart Images
Figure CN224578778U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bucket wheel excavators, and more specifically, to a bucket wheel excavator. Background Technology
[0002] Bucket wheel excavators are heavy-duty excavating equipment widely used in open-pit mines and large-scale earthmoving projects. They mainly consist of a traveling mechanism, frame, boom, and bucket wheels. The traveling mechanism is typically tracked, allowing the excavator to move within the mining area. The frame serves as the supporting structure. The boom is a key component, connecting the bucket wheels and allowing it to rotate vertically to accommodate different digging heights. The bucket wheels are the core component of the excavator, equipped with multiple digging buckets for excavating soil or ore from the ground.
[0003] In existing technologies, the bucket and wheel are positioned in a fixed manner, which makes the bucket teeth prone to damage when excavating large, hard materials. This is because the bucket teeth extend a long distance, requiring the bucket to excavate a large amount of material at a time. When encountering large, hard materials (such as large rocks), excessive digging pressure can cause the bucket teeth to endure excessive impact and stress, leading to breakage or deformation. Furthermore, the fixed position design limits the bucket teeth's ability to adapt to different excavation environments, increasing the risk of wear and failure under complex geological conditions.
[0004] Chinese patent application CN221345707U discloses a bucket wheel structure for a bucket wheel excavator, relating to the field of excavating equipment. This structure addresses the problem in existing technologies where the fixed positions of the buckets and wheel limit the working capacity of the bucket teeth in different excavation environments. The bucket wheel structure includes a wheel and multiple buckets evenly arranged along the circumference of the wheel. Each bucket includes a bucket body rotatably connected to the wheel via a shaft, and multiple bucket teeth connected to the edges of the bucket body away from the shaft. The bucket body and wheel form a digging cavity for temporarily storing excavated material. Multiple feed inlets connecting to the digging cavity are provided on the edges of the bucket bodies, each corresponding to one of the bucket bodies. The shaft is rotatably connected to the wheel, and the bucket bodies are fixedly connected to the shaft. Receiving grooves for accommodating the two sides of the bucket bodies are provided on opposite sides of the wheel's edge. A drive unit is connected to the wheel to rotate the shaft, allowing the sides of the bucket bodies to be received within the receiving grooves.
[0005] The above-mentioned solution has the following shortcomings: When the bucket wheel excavator is used to excavate in a coal mine, the coal has a certain stickiness in a humid environment. During excavation, the inner wall volume of the bucket is often reduced because the coal sticks to the inside of the bucket. Utility Model Content
[0006] To overcome the above deficiencies, this application provides a bucket wheel excavator, which aims to improve the practicality of the bucket by reducing the inner wall volume of the bucket due to coal adhering to the inside of the bucket.
[0007] This application provides a bucket wheel excavator, including...
[0008] The bucket wheel excavator body includes two rotating rings and multiple buckets. The multiple buckets are arranged between the two rotating rings and are distributed in a ring at equal intervals around the central axis of the rotating rings. The multiple buckets are fixed to the two rotating rings. A synchronization structure is provided between the two rotating rings to allow them to rotate synchronously. Each bucket has a pressing plate on both sides that matches its side profile.
[0009] The extrusion structure is located on the outside of the two rotating rings, and the extrusion structure enables the extrusion plates on both sides of the bucket to move in a centered manner.
[0010] In the above implementation process, both sides of the bucket wheel body of the bucket wheel excavator are equipped with extrusion plates that are consistent with the outline of the bucket. The outer side of the bucket wheel body is equipped with an extrusion structure that allows the two extrusion plates to approach each other. The extrusion plates extrude the damp coal inside the bucket head, making it easier for the damp coal to be squeezed out and thrown out by the bucket wheel. In this way, only a small part of the damp coal remains in the bucket head, which will not occupy too much space in the bucket head and improve the output rate.
[0011] In one specific implementation, the inner wall of the bucket is fixed with a plurality of guide bars with a cross-section of T, and the extrusion plate is slidably sleeved on each guide bar;
[0012] In the above implementation process, the guide bar is set so that the extrusion plate can only move in a straight line within the bucket.
[0013] In one specific implementation, the synchronization structure includes an intermediate cylinder located between two rotating rings, with both ends of the intermediate cylinder coaxially fixed to the two rotating rings respectively.
[0014] In the above implementation process, the intermediate cylinder is used to ensure that the two rotating slides can rotate synchronously.
[0015] In one specific implementation, the synchronization structure further includes an input shaft, one end of which is inserted into the intermediate cylinder, and the input shaft is coaxially fixed with the intermediate cylinder;
[0016] In the above implementation process, the input shaft and the output shaft of the drive motor inside the bucket wheel machine body, which is used to drive the bucket wheel body to rotate, are coaxially fixed by a coupling. The input shaft drives two rotating rings to rotate through the intermediate cylinder.
[0017] In one specific implementation, the extrusion structure includes a plurality of slide rods, one end of each slide rod being fixed to a plurality of extrusion plates, and the slide rods being slidably inserted into the corresponding buckets.
[0018] In the above implementation process, when the slide bar moves, it can drive the extrusion plate to move.
[0019] In one specific implementation, a sealing plate coaxially arranged with the slide rod is fixed to the outside of the slide rod, and a spring is sleeved on the outside of the slide rod, with the two ends of the spring contacting the bucket and the sealing plate respectively;
[0020] In the above process, without the action of external force, the spring applies a thrust to the sealing plate, and the slide rod drives the extrusion plate to be in constant contact with the side wall of the bucket.
[0021] In one specific implementation, a sleeve coaxially arranged with the slide bar is fixed to the outside of the bucket, and the sealing plate is slidably disposed inside the sleeve.
[0022] In the above implementation process, the sleeve is set to prevent coal blocks from entering the gaps between the springs and affecting the spring's extension and contraction.
[0023] In one specific embodiment, the extrusion structure further includes two fixed rings, which are coaxially arranged, and two rotating rings are located in the middle of the two fixed rings. The fixed rings have an integrally formed protrusion on the annular surface edge facing the rotating rings, and a support structure is provided on the outer side of the fixed rings.
[0024] In the above process, when the slide bar passes the protrusion, the protrusion will push the slide bar towards the bucket, and the slide bar will drive the extrusion plate to move, that is, the two extrusion plates inside the bucket will move closer to each other.
[0025] In one specific implementation, a recess is fixed to the other end of the slide bar, and a contact wheel is rotatably installed in the recess of the recess;
[0026] In the above implementation process, the contact wheel is configured to change the friction mode with the fixed ring to rolling friction, thereby reducing frictional damage.
[0027] In one specific implementation, the support structure includes a fixed cylinder and a bracket, wherein the fixed cylinder is coaxially fixed with a fixed ring and the fixed cylinder is fixed with the bracket;
[0028] In the above process, the bracket is fixed on the frame of the bucket wheel excavator body, which ensures that the fixed ring and the rotating ring can rotate.
[0029] Compared with the prior art, the beneficial effects of this application are as follows: Both sides of the bucket wheel shovel head of the bucket wheel excavator are provided with extrusion plates that are consistent with the outline of the bucket. The outer side of the bucket wheel is provided with an extrusion structure that allows the two extrusion plates to approach each other. The extrusion plates extrude the damp coal inside the shovel head, which makes it easier for the damp coal to be squeezed out and thrown out by the bucket wheel. In this way, only a small part of the damp coal remains in the shovel head, which will not occupy too much space in the shovel head and improve the output rate. Attached Figure Description
[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0031] Figure 1 This is a schematic diagram of an overall bucket wheel excavator provided by this utility model;
[0032] Figure 2 This is a three-dimensional schematic diagram of the bucket wheel body provided by this utility model;
[0033] Figure 3 This is a front view structural diagram of the bucket wheel body provided by this utility model;
[0034] Figure 4 A three-dimensional structural diagram of the fixing ring provided by this utility model;
[0035] Figure 5 A three-dimensional structural diagram of the shovel head provided by this utility model;
[0036] Figure 6 A schematic diagram of the internal structure of the sleeve provided by this utility model.
[0037] In the diagram: 1. Bucket wheel excavator body; 2. Bucket wheel body; 3. Support frame; 4. Fixed cylinder; 5. Input shaft; 6. Fixed ring; 7. Rotating ring; 8. Bucket; 9. Intermediate cylinder; 10. Protrusion; 11. Extrusion plate; 12. Guide bar; 13. Sleeve; 14. Slide rod; 15. Concave block; 16. Contact wheel; 17. Spring; 18. Sealing plate. Detailed Implementation
[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0039] Please see Figure 1-6 This application provides a bucket wheel excavator, including
[0040] The bucket wheel excavator body 1 and the bucket wheel body 2 of the bucket wheel excavator body 1 include two rotating rings 7 and multiple buckets 8. The multiple buckets 8 are arranged between the two rotating rings 7 and are distributed in a ring at equal distances around the central axis of the rotating rings 7. The multiple buckets 8 are fixed to the two rotating rings 7. A synchronization structure is provided between the two rotating rings 7 to allow them to rotate synchronously. Both sides of the buckets 8 are provided with extrusion plates 11 that are adapted to their side profiles.
[0041] The extrusion structure is located on the outside of the two rotating rings 7. The extrusion structure enables the extrusion plates 11 on both sides of the bucket 8 to move in a centered manner.
[0042] In the above implementation process, both sides of the bucket wheel body 2 of the bucket wheel excavator body 1 are provided with extrusion plates 11 that are consistent with the outline of the bucket 8. The outer side of the bucket wheel body 2 is provided with an extrusion structure that allows the two extrusion plates 11 to approach each other. The extrusion plates 11 extrude the damp coal inside the shovel head, which makes it easier for the damp coal to be squeezed out and thrown out by the bucket wheel. In this way, only a small part of the damp coal is left in the shovel head, which will not occupy too much space in the shovel head and improve the output rate.
[0043] In the specific setup, multiple guide bars 12 with T-shaped cross sections are fixed to the inner wall of the bucket 8, and the extrusion plate 11 is slidably sleeved on each guide bar 12. The guide bars 12 are set so that the extrusion plate 11 can only move in a straight line within the bucket 8.
[0044] In a specific configuration, the synchronization structure includes an intermediate cylinder 9, which is located between two rotating rings 7. Both ends of the intermediate cylinder 9 are coaxially fixed to the two rotating rings 7. The intermediate cylinder 9 is designed to ensure that the two rotating rings can rotate synchronously.
[0045] In a specific configuration, the synchronization structure also includes an input shaft 5. One end of the input shaft 5 is inserted into the intermediate cylinder 9. The input shaft 5 and the intermediate cylinder 9 are coaxially fixed. The input shaft 5 and the output shaft of the drive motor inside the bucket wheel machine body 1, which is used to drive the bucket wheel body 2 to rotate, are coaxially fixed through a coupling. The input shaft 5 drives the two rotating rings 7 to rotate through the intermediate cylinder 9.
[0046] In a specific configuration, the extrusion structure includes multiple slide rods 14, one end of each slide rod 14 is fixed to multiple extrusion plates 11, and the slide rod 14 is slidably inserted into the corresponding bucket 8. When the slide rod 14 moves, it can drive the extrusion plate 11 to move.
[0047] In the specific configuration, a sealing plate 18 is fixed on the outer side of the slide rod 14 and is coaxially arranged therewith. A spring 17 is sleeved on the outer side of the slide rod 14. The two ends of the spring 17 are in contact with the bucket 8 and the sealing plate 18 respectively. When there is no external force, the spring 17 applies a pushing force to the sealing plate 18, and the slide rod 14 drives the extrusion plate 11 to be in constant contact with the side wall of the bucket 8.
[0048] In the specific setup, a sleeve 13 coaxially arranged with the slide bar 14 is fixed on the outside of the bucket 8. The sealing plate 18 is slidably arranged inside the sleeve 13. The sleeve 13 is set to prevent coal blocks from entering the gaps of the spring 17 and affecting the extension and contraction of the spring 17.
[0049] In a specific configuration, the extrusion structure also includes two fixed rings 6, which are coaxially arranged. Two rotating rings 7 are located in the middle of the two fixed rings 6, and the fixed rings 6 have an integrally formed protrusion 10 at the edge of the annular surface facing the rotating rings 7. A support structure is provided on the outside of the fixed rings 6. When the slide rod 14 passes the protrusion 10, the protrusion 10 will push the slide rod 14 toward the bucket 8. The slide rod 14 drives the extrusion plate 11 to move, that is, the two extrusion plates 11 inside the bucket 8 move closer to each other.
[0050] In the specific configuration, a recess 15 is fixed to the other end of the slide bar 14. A contact wheel 16 is rotatably installed in the recess of the recess 15. The contact wheel 16 is configured to change the friction mode with the fixed ring 6 to rolling friction, thereby reducing friction damage.
[0051] In the specific setup, the support structure includes a fixed cylinder 4 and a bracket 3. The fixed cylinder 4 is coaxially fixed with the fixed ring 6, and the fixed cylinder 4 is fixed with the bracket 3. The bracket 3 is fixed on the frame of the bucket wheel machine body 1, so that the fixed ring 6 and the rotating ring 7 can maintain rotation.
[0052] It should be noted that the bucket wheel excavator body 1 and its principle are clear to those skilled in the art, and will not be described in detail here. The bucket wheel of the bucket wheel excavator is specifically shown here, which is also part of the bucket wheel excavator.
[0053] It should be further explained that, in order to prevent the fixing ring 6 from contacting the excavation site, the outward tilt of the shovel head is increased.
[0054] The working principle of this bucket wheel excavator is as follows: When the bucket wheel excavator body 1 is in use, the input shaft 5 and the output shaft of the drive motor inside the bucket wheel excavator body 1, which drives the bucket wheel body 2 to rotate, are coaxially fixed through a coupling. The output shaft of the drive motor causes the input shaft 5 to rotate. The input shaft 5 drives the two rotating rings 7 to rotate through the intermediate cylinder 9. Since the bracket 3 is fixed on the frame of the bucket wheel excavator body 1, and the bracket 3 is fixed to the fixed ring 6 through the fixed cylinder 4, the rotating rings 7 and the fixed ring 6 rotate relative to each other. The sliding rod 14 on the fixed shovel head moves in a circular motion on the surface of the fixed ring 6 with the help of the contact wheel 16. When the contact wheel 16 passes the protrusion 10, the protrusion 10 will push the sliding rod 14 towards the bucket 8. The sliding rod 14 drives the extrusion plate 11 to move, that is, the two extrusion plates 11 in the bucket 8 move closer to each other. The extrusion plates 11 extrude the damp coal inside the shovel head, so that the damp coal can be squeezed out and thrown out by the bucket wheel. In this way, only a small part of the damp coal is left in the shovel head, which will not occupy too much space in the shovel head and improve the output rate.
[0055] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A bucket wheel machine, characterized in that include The bucket wheel machine body (1) includes two rotating rings (7) and multiple buckets (8). The multiple buckets (8) are arranged between the two rotating rings (7). The multiple buckets (8) are distributed in a circular pattern with the central axis of the rotating rings (7) as the center. The multiple buckets (8) are fixed to the two rotating rings (7). A synchronous structure is provided between the two rotating rings (7) to allow them to rotate synchronously. Both sides of the buckets (8) are provided with extrusion plates (11) that are adapted to their side profiles. The extrusion structure is located on the outside of the two rotating rings (7), and the extrusion structure enables the extrusion plates (11) on both sides of the bucket (8) to move in a centered manner.
2. A bucket wheel machine according to claim 1, characterized in that The inner wall of the bucket (8) is fixed with multiple guide bars (12) with a cross-section of T, and the extrusion plate (11) is slidably sleeved on each guide bar (12).
3. A bucket wheel machine according to claim 1, characterized in that The synchronization structure includes an intermediate cylinder (9) located between two rotating rings (7), and the two ends of the intermediate cylinder (9) are respectively fixed coaxially with the two rotating rings (7).
4. A bucket wheel machine according to claim 3, characterized in that The synchronization structure also includes an input shaft (5), one end of which is inserted into the intermediate cylinder (9), and the input shaft (5) is fixed coaxially with the intermediate cylinder (9).
5. A bucket wheel machine according to claim 1, characterized in that The extrusion structure includes multiple slide rods (14), one end of each slide rod (14) is fixed on multiple extrusion plates (11), and the slide rods (14) are slidably inserted into the corresponding buckets (8).
6. A bucket wheel machine according to claim 5, characterized in that A sealing plate (18) is fixed on the outside of the slide rod (14) and is coaxially arranged therewith. A spring (17) is sleeved on the outside of the slide rod (14). The two ends of the spring (17) are in contact with the bucket (8) and the sealing plate (18) respectively.
7. A bucket wheel machine according to claim 6, characterized in that A sleeve (13) coaxially arranged with the slide bar (14) is fixed on the outside of the bucket (8), and the sealing plate (18) is slidably arranged inside the sleeve (13).
8. A bucket wheel machine according to claim 7, characterized in that The extrusion structure also includes two fixed rings (6), which are coaxially arranged. Two rotating rings (7) are located in the middle of the two fixed rings (6), and the fixed rings (6) are provided with an integral protrusion (10) at the edge of the annular surface of the rotating rings (7). A support structure is provided on the outside of the fixed rings (6).
9. A bucket wheel machine according to claim 5, characterized in that The other end of the slide bar (14) is fixed with a recess (15), and a contact wheel (16) is rotatably installed in the recess (15).
10. A bucket wheel machine according to claim 8, characterized in that Therefore, the support structure includes a fixed cylinder (4) and a bracket (3). The fixed cylinder (4) is coaxially fixed with the fixed ring (6), and the fixed cylinder (4) is fixed with the bracket (3).