Bucket wheel mechanism with easy cleaning and discharge

Abstract

This invention relates to the field of bulk material handling equipment, and particularly to a bucket wheel mechanism that facilitates easy cleaning and unloading. It includes a wheel body and multiple buckets circumferentially arranged on the wheel body. Each bucket has multiple circumferentially arranged teeth at its front open end. Each bucket includes an upper bucket body, an upper flapper plate, scrapers, a lower flapper plate, and a tilting drive component. The lower flapper plate is located at the bottom of the upper bucket body and is hinged to the rear end of the upper bucket body via a hinge structure. The top of the upper bucket body has an opening, and the upper flapper plate is hinged to this opening. Scrapers are located on both sides of the upper flapper plate, and these scrapers are in contact with the inner walls of the upper bucket body. The tilting drive component is hinged to the outside of the upper bucket body, and its output end is hinged to the upper flapper plate. The tilting drive component drives the upper flapper plate to open or close. When the upper flapper plate tilts, the scrapers on both sides scrape away any sticky material accumulated on the inner surfaces of the upper bucket body. This invention achieves "instant cleaning of accumulated material and rapid unloading," while reducing the number of idle cycles of the bucket wheel mechanism and lowering equipment energy consumption.

Description

Technical Field

[0001] This invention relates to the field of bulk material handling equipment technology, and in particular to a bucket wheel mechanism that is easy to clean and unload. Background Technology

[0002] Bucket wheel excavators are core equipment in bulk material handling fields such as mining, docks, and metallurgy. The bucket wheel mechanism, as a key component, undertakes the core function of continuous material handling. During operation, the bucket wheel shaft drives the wheel body to rotate, and the material excavated by the bucket teeth enters the bucket under the combined action of digging force and material resistance. However, in actual working conditions, when the material has a high moisture content, the ambient temperature is low, or the humidity is high, the material is very easy to adhere to the inner wall of the bucket and form accumulation. In low-temperature environments, the accumulated material can also freeze on the inner wall of the bucket, making cleaning extremely difficult.

[0003] The problems caused by material accumulation are particularly prominent: First, the effective volume of the bucket is occupied, the material handling capacity per unit time decreases significantly, and the equipment productivity decreases; Second, uneven material accumulation in the bucket leads to weight imbalance of the bucket body, and a large unbalanced force is generated when the bucket wheel mechanism rotates, which aggravates the uneven load on the bucket wheel shaft and greatly shortens the service life of the bucket wheel shaft; Third, when the material accumulation is serious, the machine needs to be stopped for manual cleaning, but the internal space of the bucket is small, the diameter of the bucket wheel mechanism is large and the height above the ground, so manual cleaning is not only inefficient and time-consuming, but also poses a high safety hazard.

[0004] The existing cleaning methods for bucket wheel mechanisms have significant drawbacks: 1. Manual cleaning during machine downtime is time-consuming and difficult, severely impacting the equipment's material handling efficiency and incurring high labor costs; 2. Installing anti-sticking liners inside the bucket not only increases the bucket's weight but also significantly affects the anti-sticking effect due to material characteristics. When materials become severely compacted, the liners need to be removed, greatly increasing maintenance costs; 3. High-pressure water jet washing requires an additional water supply system, which is extremely uneconomical and environmentally unsuitable for bucket wheel excavators operating in large material yards with wide mobility and complex working environments.

[0005] Furthermore, when the cantilever structure of existing bucket wheel excavators switches the bucket wheel mechanism to a new material handling position, the bucket wheel mechanism stops handling material. The residual material inside the bucket increases the rotational load on the cantilever structure, thus increasing the rotational power requirements. To reduce this load, existing technologies require the bucket wheel mechanism to idle for several revolutions to unload the residual material. However, the driving power of the bucket wheel mechanism is much higher than the rotational driving power of the cantilever structure, and frequent idling results in high overall energy consumption of the equipment.

[0006] Therefore, developing a bucket wheel mechanism that can achieve automatic material clearing, rapid unloading, and reduce equipment energy consumption has become a key requirement for ensuring the efficient and stable operation of bucket wheel excavators. Summary of the Invention

[0007] To address the aforementioned problems, the present invention aims to provide a bucket wheel mechanism that facilitates material cleaning and unloading, thereby solving the technical problems of existing bucket wheel mechanisms such as difficulty in cleaning accumulated material, incomplete unloading, high cleaning costs, and high energy consumption. This invention achieves "instant cleaning of accumulated material and rapid unloading," while reducing the number of times the bucket wheel mechanism idles and lowering equipment energy consumption.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] This invention provides a bucket wheel mechanism for easy cleaning and unloading, comprising a wheel body and a plurality of buckets arranged circumferentially on the wheel body. The front opening end of each bucket is provided with a plurality of bucket teeth circumferentially. Each bucket includes an upper bucket body, an upper flapper plate, scrapers, a lower flapper plate, and a tilting drive component. The lower flapper plate is located at the bottom of the upper bucket body and is hinged to the rear end of the upper bucket body via a hinge structure. The top of the upper bucket body has an opening, and the upper flapper plate is hinged to the opening at the top of the upper bucket body. Scrapers are provided on both sides of the upper flapper plate, and the scrapers on both sides are in contact with the inner walls of both sides of the upper bucket body. The tilting drive component is hinged to the outside of the upper bucket body, and its output end is hinged to the upper flapper plate. The tilting drive component is used to drive the upper flapper plate to open or close. When the upper flapper plate tilts, the scrapers on both sides scrape away the sticky accumulated material on the inner surfaces of both sides of the upper bucket body.

[0010] The upper bucket body includes a top plate, a rear plate, and two side plates, wherein the two side plates are arranged in parallel, and the top and rear sides of the two side plates are connected to the top plate and the rear plate respectively, and the rear plate is inclined; the top plate has an arc-shaped structure, and the opening is provided at one end near the rear plate.

[0011] The upper flip plate includes an arc plate, side lugs disposed on both sides of the middle part of the arc plate, and an upper lug disposed on the front side of the arc plate, wherein the two side lugs are used to hinge with the upper bucket body, and the upper lug is used to hinge with the flipping drive component.

[0012] The two scrapers are perpendicularly connected to the rear ends of the arc plate.

[0013] The rear plate is provided with a hinge lug; the flipping drive component is a push rod, the tail of which is hinged to the hinge lug, and the output end of which is hinged to the upper lifting lug on the upper flip plate.

[0014] The lower flap includes a lower arc plate and hanging plates disposed on both sides of the rear end of the lower arc plate, wherein the hanging plates are used to hinge with the upper bucket body.

[0015] The hinge structure includes a locking assembly, a rotating sleeve, a torsion spring, an inner conical shaft, and a conical sleeve. The rotating sleeve is fixed to the bottom rear end of the upper bucket body. One end of the inner conical shaft is inserted into the rotating sleeve and fixed by the locking assembly. The hanging plate is sleeved on the other end of the inner conical shaft and is axially limited by the conical sleeve. The torsion spring is disposed in the rotating sleeve and is axially limited by the rotating sleeve boss on the inner side of the rotating sleeve. One short side of the torsion spring is fixed to the rotating sleeve, and the other long side is led out from the rotating sleeve and connected to the hanging plate.

[0016] The rotating sleeve has a short side groove and a long side movable groove on both sides of one end face near the hanging plate, and a long side fixed groove that communicates with the long side movable groove is provided on the side wall of this end along the circumferential direction. The short side groove is used to fix the short side of the torsion spring, and the long side of the torsion spring is guided into the long side fixed groove through the long side movable groove.

[0017] The other end of the rotating sleeve has symmetrical mounting holes for installing the locking assembly.

[0018] The locking assembly includes a locking release platform, a locking fixing shaft platform, and a spring. Both ends of the locking fixing shaft platform are half-shaft structures, and the two half-shaft structures are respectively positioned and connected to the two locking release platforms. The spring is connected between the locking release platform and the half-shaft structure. The locking release platform moves radially under the elastic force of the spring, thereby restricting the locking fixing shaft platform from coming out of the mounting hole.

[0019] The mounting hole includes a shaft hole and an enlarged hole located at the outer end of the shaft hole, with the bottom of the enlarged hole being a locking platform; the locking fixing platform passes through the shaft hole, and the locking loosening platform is accommodated in the enlarged hole, with its bottom contacting the locking platform.

[0020] The inner side of the half-shaft structure of the locking and fixing shaft platform is provided with a locking and fixing slide groove and a locking guide hole; the locking and loosening platform includes a locking and loosening platform seat and a locking and loosening platform guide post and a locking and loosening platform slide plate disposed on the locking and loosening platform seat, wherein the locking and loosening platform guide post is positioned and engaged with the locking guide hole, the locking and loosening platform slide plate is slidably engaged with the locking and fixing slide groove, and the spring is housed in the locking and fixing slide groove, and its two ends abut against the locking and fixing shaft platform and the locking and loosening platform slide plate respectively.

[0021] The present invention has the following beneficial effects and advantages:

[0022] 1. Automated material cleaning: This invention uses a push rod to drive the upper flap plate and the scraper, which can automatically scrape off the sticky material on the side plate of the bucket. The top plate adopts an integrated welded structure and the rear plate adopts a sloping structure, which avoids the formation of material accumulation from the structure and completely solves the problem of difficult material cleaning in the existing bucket wheel mechanism. There is no need to stop the machine for manual cleaning, which improves the operating efficiency of the equipment and eliminates the safety hazards of manual cleaning.

[0023] 2. High-efficiency unloading: The lower flap of this invention is linked with the torsion spring and locking assembly, which can automatically open under material pressure to achieve rapid unloading. After unloading, it automatically resets. Combined with the anti-spillage design of the unloading trough, it further improves the unloading efficiency, ensures the effective volume of the bucket for material collection, and improves the equipment productivity.

[0024] 3. Significantly reduced energy consumption: When the cantilever structure switches the material picking position, the invention actively removes the remaining material in the bucket by simultaneously opening the upper and lower flaps at the highest position of the bucket, which greatly reduces the number of idle rotations of the bucket wheel mechanism. Since the driving power of the bucket wheel mechanism is much higher than that of the cantilever rotation, the reduction in the number of idle rotations can significantly reduce the overall energy consumption of the equipment, thus achieving energy saving and consumption reduction.

[0025] 4. Stable structure and low maintenance cost: The components of this invention are precisely positioned and firmly connected through locking components, conical sleeves, etc. The rotating boss restricts the axial movement of the torsion spring, improves the smoothness of component movement, and reduces component wear. The overall structure has no additional easily damaged anti-stick lining plates, water supply systems, etc., so there are fewer maintenance links and maintenance costs are greatly reduced.

[0026] 5. Strong environmental adaptability: This invention does not require additional auxiliary systems and can operate stably under complex working conditions such as high moisture content, low temperature, and high humidity. It is suitable for bulk material loading and unloading operations in multiple fields such as mining, docks, and metallurgy, and has excellent economic efficiency and practicality.

[0027] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0028] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is an isometric view of a bucket wheel mechanism for easy material cleaning and unloading according to the present invention;

[0031] Figure 2 This is a schematic diagram showing the composition of the bucket and the open state of the upper flap in this invention;

[0032] Figure 3 This is a schematic diagram of the structure of the upper flap and scraper in this invention;

[0033] Figure 4 This is a schematic diagram of the upper flap structure in this invention;

[0034] Figure 5 This is a schematic diagram of the structure of the lower flap in this invention;

[0035] Figure 6 This is a schematic diagram of the installation of the lower flap in this invention;

[0036] Figure 7 for Figure 6 A partial exploded view;

[0037] Figure 8 This is an isometric view of the rotating sleeve in this invention;

[0038] Figure 9 This is a side view of the rotating sleeve in this invention;

[0039] Figure 10 This is an isometric view of the hinge structure in this invention;

[0040] Figure 11 This is an isometric view of the locking and loosening platform in this invention;

[0041] Figure 12 This is an isometric view of the locking and fixing shaft platform in this invention;

[0042] Figure 13 This is an isometric view of the inner conical shaft in this invention;

[0043] Figure 14 This is an isometric view of the unloading trough in this invention.

[0044] In the diagram: 1. Bucket; 101. Top plate; 102. Upward tilting plate; 1021. Curved plate; 1022. Side lifting lug; 1023. Upward lifting lug; 103. Scraper; 104. Rear plate; 105. Side plate; 106. Hinge lug; 107. Push rod; 108. Locking assembly; 1081. Locking release platform; 10811. Locking release platform base; 10812. Locking release platform guide post; 10813. Locking release platform slide plate; 1082. Locking fixing shaft platform; 10821. Locking fixing groove; 10822. Locking guide hole; 10823. Locking fixing shaft; 1083. Spring; 109. Downward tilting plate Plate; 1091, Hanging plate; 1092, Lower arc plate; 110, Rotating sleeve; 1101, Short side groove; 1102, Long side movable groove; 1103, Long side fixed groove; 1104, Rotating sleeve boss; 1105, Rotating sleeve hollow hole; 1106, Expanded hole; 1107, Shaft hole; 1108, Locking platform; 111, Torsion spring; 112, Inner conical shaft; 1121, Conical surface; 1122, Through diameter; 1123, Positioning hole; 113, Conical sleeve; 2, Bucket teeth; 3, Wheel body; 4, Unloading chute; 401, Left baffle; 402, Front baffle; 403, Right baffle; 404, Rear baffle; 5, Conveyor belt. Detailed Implementation

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0047] See Figures 1 to 14 As shown, the present invention provides a bucket wheel mechanism that is easy to clean and unload, including a wheel body 3 and a plurality of buckets 1 arranged circumferentially on the wheel body 3. The front opening end of the bucket 1 is provided with a plurality of bucket teeth 2 circumferentially. The bucket 1 includes an upper bucket body, an upper flip plate 102, a scraper 103, a lower flip plate 109 and a flipping drive component. The lower flip plate 109 is located at the bottom of the upper bucket body and is hinged to the rear end of the upper bucket body through a hinge structure. The top of the upper bucket body is provided with an opening. The upper flip plate 102 is hinged to the opening at the top of the upper bucket body. Scrapers 103 are provided on both sides of the upper flip plate 102 and are attached to the inner walls of both sides of the upper bucket body. The flipping drive component is hinged to the outside of the upper bucket body and its output end is hinged to the upper flip plate 102. The flipping drive component is used to drive the upper flip plate 102 to open or close. When the upper flip plate 102 flips, the scrapers 103 on both sides scrape off the sticky accumulated material on the inner surface of both sides of the upper bucket body.

[0048] See Figure 2 As shown, in an embodiment of the present invention, the upper bucket body includes a top plate 101, a rear plate 104 and two side plates 105, wherein the two side plates 105 are arranged in parallel, and the top and rear sides of the two side plates 105 are respectively connected to the top plate 101 and the rear plate 104, and the rear plate 104 is inclined. The top plate 101 has an arc-shaped structure and an opening is provided at one end near the rear plate 104.

[0049] When the bucket wheel mechanism is in material handling operation, the top plate 101 is the first part to come into contact with the material. Due to the continuous impact resistance of the material, there is no material accumulation problem on the surface of the top plate 101. Therefore, the top plate 101 and the side plate 105 are welded into an integral structure. The rear plate 104 adopts a sloping structure design. Under the guidance of the sloping angle at its rear corner, the material can slide smoothly down. There is also no material accumulation problem in the area of ​​the rear plate 104.

[0050] See Figures 2 to 4As shown, in an embodiment of the present invention, the upper flip plate 102 includes an arc plate 1021, side lugs 1022 disposed on both sides of the middle portion of the arc plate 1021, and an upper lug 1023 disposed on the front side of the arc plate 1021. The two side lugs 1022 are hinged to the upper bucket body, and the upper lug 1023 is hinged to the flipping drive component. Two scrapers 103 are vertically connected to the rear ends of the arc plate 1021. A hinge lug 106 is provided on the rear plate 104. The flipping drive component is a push rod 107, the tail of which is hinged to the hinge lug 106, and the output end of the push rod 107 is hinged to the upper lug 1023 on the upper flip plate 102.

[0051] See Figure 5 As shown, in an embodiment of the present invention, the lower flap 109 includes a lower arc plate 1092 and hanging plates 1091 disposed on both sides of the rear end of the lower arc plate 1092, wherein the hanging plates 1091 are used to hinge with the upper bucket body.

[0052] See Figure 6 and Figure 7 As shown, in an embodiment of the present invention, the hinge structure includes a locking assembly 108, a rotating sleeve 110, a torsion spring 111, an inner conical shaft 112, and a conical sleeve 113. The rotating sleeve 110 is fixed to the bottom of the rear end of the upper bucket body. One end of the inner conical shaft 112 is inserted into the rotating sleeve 110 and fixed by the locking assembly 108. The hanging plate 1091 is sleeved on the other end of the inner conical shaft 112 and is axially limited by the conical sleeve 113. The torsion spring 111 is disposed in the rotating sleeve 110 and is axially limited by the rotating sleeve boss 1104 on the inner side of the rotating sleeve 110. One short side of the torsion spring 111 is fixed to the rotating sleeve 110, and the other long side is led out from the rotating sleeve 110 and connected to the hanging plate 1091.

[0053] See Figure 8 and Figure 9 As shown in the embodiment of the present invention, the end face of the rotating sleeve 110 near the hanging plate 1091 is provided with a short side groove 1101 and a long side movable groove 1102 on both sides, and a long side fixing groove 1103 communicating with the long side movable groove 1102 is provided on the side wall of the end in the circumferential direction. The short side groove 1101 is used to fix the short side of the torsion spring 111, and the long side of the torsion spring 111 is guided into the long side fixing groove 1103 through the long side movable groove 1102. The other side wall of the rotating sleeve 110 is symmetrically provided with mounting holes for installing the locking assembly 108.

[0054] See Figure 10As shown, in an embodiment of the present invention, the locking assembly 108 includes a locking release platform 1081, a locking fixing shaft platform 1082, and a spring 1083. Both ends of the locking fixing shaft platform 1082 are half-shaft structures, and the two half-shaft structures are respectively positioned and connected to the two locking release platforms 1081. The spring 1083 is connected between the locking release platform 1081 and the half-shaft structure. The locking release platform 1081 moves radially under the elastic force of the spring 1083, thereby restricting the locking fixing shaft platform 1082 from dislodging from the mounting hole.

[0055] See Figure 9 As shown, in an embodiment of the present invention, the mounting hole includes a shaft hole 1107 and an enlarged hole 1106 located at the outer end of the shaft hole 1107. The bottom of the enlarged hole 1106 is a locking platform 1108. The locking and fixing shaft platform 1082 passes through the shaft hole 1107, and the locking loosening platform 1081 is accommodated in the enlarged hole 1106, and its bottom contacts the locking platform 1108.

[0056] See Figures 10 to 12 As shown in the embodiment of the present invention, the inner side of the half-shaft structure of the locking and fixing shaft platform 1082 is provided with a locking and fixing slide groove 10821 and a locking guide hole 10822; the locking and loosening platform 1081 includes a locking and loosening platform seat 10811 and a locking and loosening platform guide post 10812 and a locking and loosening platform slide plate 10813 disposed on the locking and loosening platform seat 10811, wherein the locking and loosening platform guide post 10812 is positioned and engaged with the locking guide hole 10822, the locking and loosening platform slide plate 10813 is slidably engaged with the locking and fixing slide groove 10821, and the spring 1083 is housed in the locking and fixing slide groove 10821, and its two ends abut against the locking and fixing shaft platform 1082 and the locking and loosening platform slide plate 10813 respectively.

[0057] See Figure 13 As shown, in an embodiment of the present invention, the inner conical shaft 112 has a bore diameter 1122 (cylindrical section), one end of the inner conical shaft 112 is provided with a positioning hole 1123 in the radial direction, and the other end is provided with a conical surface 1121 that cooperates with the conical sleeve 113.

[0058] See Figure 1 As shown, in an embodiment of the present invention, a discharge groove 4 is provided on the inner side of the wheel body 3, and the discharge groove 4 is placed on the conveyor belt 5. See also Figure 14 As shown, the unloading chute 4 includes a left baffle 401, a front baffle 402, a right baffle 403 and a rear baffle 404. To prevent material from spilling when the bucket 1 is unloading, the rear baffle 404 is higher than the front baffle 402.

[0059] Furthermore, the bucket wheel mechanism is equipped with an angle detector. When the bucket 1 rotates to the position directly above the bucket wheel mechanism, the angle detector triggers an action command, and the push rod 107 drives the upper flap 102 to open. At the same time, the lower flap 109 opens under the force of the material, so that cleaning and unloading are carried out simultaneously.

[0060] Furthermore, the bucket wheel mechanism is installed on the cantilever structure of the working equipment. When the last rotation of the material-collecting operation is completed, the upper flap 102 and the lower flap 109 of each bucket 1 are opened simultaneously when the bucket 1 rotates to the highest position, which accelerates the unloading of residual material in the bucket and reduces the number of idle rotations of the bucket wheel mechanism.

[0061] This invention provides a bucket wheel mechanism that is easy to clean and unload materials, and its working principle is as follows:

[0062] 1. When the bucket wheel mechanism is in the material-retrieving operation, both the upper flap 102 and the lower flap 109 are in the closed state to ensure the material-retrieving volume of the bucket 1. The material enters the bucket 1 under the digging action of the bucket teeth 2.

[0063] 2. When the bucket 1 rotates with the wheel 3 to the position directly above the bucket wheel mechanism, the angle detector detects the bucket 1 and triggers the action command. The push rod 107 drives the upper flip plate 102 to flip open to the maximum angle. During the opening of the upper flip plate 102, the scraper 103 moves synchronously with the upper flip plate 102 to completely scrape off the sticky accumulated material on the inner surface of the two side plates 105, realizing automatic cleaning of the accumulated material.

[0064] 3. At the same time, when the bucket 1 rotates to the position directly above the bucket wheel mechanism, the lower flap 109 opens under the vertical downward force of the material, and the material in the bucket 1 is quickly discharged into the discharge chute 4, realizing the synchronous operation of cleaning and unloading.

[0065] The working principle of the automatic opening of the lower flap 109:

[0066] The rear plate 104 and the rotating sleeve 110 are fixed together to form a rotating fixed end; the lower flip plate 109, which is composed of the hanging plate 1091 and the lower arc plate 1092 fixed together, is the rotating end, such as Figure 2 As shown.

[0067] The short end of the torsion spring 111 is fixed in the short groove 1101 of the rotating sleeve 110, and the long end of the torsion spring 111 is fixed on the hanging plate 1091. Figure 7 As shown. When the bucket 1 is unloading, the lower flap 109 opens under the pressure of the material vertically downward; after unloading is completed, the bucket wheel mechanism rotates, and under the action of centrifugal force and the rebound force of the torsion spring 111, the lower flap 109 returns to the position flush with the side plate 105, thereby closing the bucket 1 and ensuring the normal material picking structure of the bucket 1.

[0068] The long side of the torsion spring 111 is inserted into the long side movable groove 1102. When the lower flap 109 rotates, the long side of the torsion spring 111 moves in the long side fixed groove 1103. The rotating sleeve boss 1104 restricts the axial movement of the torsion spring 111, thereby reducing the pressure and deformation of the long side of the torsion spring 111 on the long side fixed groove 1103 when it moves, and improving the smoothness of the lower flap 109 when it rotates. The rotating sleeve hollow hole 1105 of the rotating sleeve 110 is matched with the through diameter 1122 of the inner conical shaft 112.

[0069] On the one hand, to ensure the accurate relative position of the lower flap 109 and the bucket 1, a conical sleeve 113 is first fitted onto the conical surface of the inner conical shaft 112 on the outside of the hanging plate 1091. The small diameter surface of the conical sleeve 113 forms a positioning surface with the hanging plate 1091, precisely ensuring the relative position of the lower flap 109 and the bucket 1, and preventing the lower flap 109 from shifting and affecting the unloading and cleaning effect. On the other hand, the inner end of the inner conical shaft 112 is fixed by the locking assembly 108, such as... Figure 7 As shown.

[0070] Working principle of locking component 108:

[0071] See Figure 7 As shown, the installation sequence of the components on the inner tapered shaft 112 is as follows: tapered sleeve 113, hanging plate 1091, torsion spring 111, rotating sleeve 110, and locking assembly 108, which achieves a firm lock between the rotating sleeve 110 and the inner tapered shaft 112. The specific locking process is as follows:

[0072] ① Fix one end of spring 1083 to locking release slide plate 10813, and fix the other end of spring 1083 to the smallest surface of locking fixing slide groove 10821.

[0073] ② Align the locking release guide post 10812 with the locking guide hole 10822. The state at this time is as follows: Figure 10 As shown. It should be noted that the spring 1083 is in its original extended state at this time. Push the locking release plate 10813 into the locking fixing slide groove 10821 until the arc surface of the locking release seat 10811 and the arc surface of the locking fixing shaft 10823 form a complete circle. The diameter of this circle is exactly the diameter of the inner conical shaft 1123, and at the same time, the spring 1083 is in a compressed state.

[0074] ③ Insert the locking and fixing shaft 10823 into the positioning hole 1123 of the inner conical shaft 112. After it is inserted into place, release the locking release plate 10813. At this time, the spring 1083 returns to its original extended state. The side wall of the enlarged hole 1106 abuts against the arc surface of the locking release plate 1081. At this time, the single-sided locking of the rotating sleeve 110 and the inner conical shaft 112 is completed.

[0075] ④ Repeat the above steps to lock the other side of the rotating sleeve 110 and the inner conical shaft 112, ensuring the connection stability between the rotating sleeve 110 and the inner conical shaft 112, thereby ensuring the rotational stability of the lower flap 109.

[0076] Energy-saving principle of bucket wheel mechanism: The bucket wheel mechanism of this invention is installed on the cantilever structure of a bucket wheel excavator. During operation, the cantilever structure drives the bucket wheel mechanism to switch between different material handling positions. Specific energy-saving process:

[0077] The equipment first performs material collection at collection point A. After collection at point A, the cantilever structure needs to drive the bucket wheel mechanism to rotate around the equipment center by a set angle to collection point B to continue material collection. This process is repeated to complete the material collection operations at all stations. During the rotational switching from collection point A to collection point B, the bucket wheel mechanism stops its material collection operation. Because the length of the cantilever structure is usually tens of meters, residual material easily remains in the bucket of the bucket wheel mechanism. This residual material increases the rotational load of the cantilever structure, thereby increasing the power requirements for the rotation of the cantilever structure and the bucket wheel mechanism around the equipment center. In the prior art, to reduce the above-mentioned rotational power requirements, after material collection at collection point A is completed, the bucket wheel mechanism needs to be driven to idle for several revolutions to completely unload the residual material in the bucket. However, the driving power of the bucket wheel mechanism is usually in the tens to hundreds of kilowatts range, while the rotational driving power of the cantilever structure is only in the tens of kilowatts range. If the number of idle revolutions of the bucket wheel mechanism can be reduced, the overall energy consumption of the equipment can be significantly reduced, achieving effective power saving. Compared with the prior art, in the final rotation of the bucket wheel mechanism of the present invention, when each bucket 1 rotates to the highest position, the upper flap 102 and the lower flap 109 on the top of the bucket 1 open simultaneously. By actively opening the upper flap 102 and the lower flap 109, the unloading of residual material in the bucket is accelerated, effectively reducing the number of idle rotations of the bucket wheel mechanism, thereby achieving the effect of energy saving.

[0078] This invention provides a bucket wheel mechanism that facilitates easy material cleaning and unloading, solving the technical problems of existing bucket wheel mechanisms such as easy material accumulation, incomplete unloading, high cleaning costs, and high energy consumption. The upper flapper, in conjunction with a scraper, removes accumulated material, while the lower flapper, through a torsion spring, an inner conical shaft, and a locking assembly, automatically opens and closes for unloading. The unloading chute employs a high and low baffle design to prevent spillage. This invention enables immediate cleaning of accumulated material and rapid unloading, reducing the number of idle rotations of the bucket wheel mechanism, significantly reducing equipment energy consumption, and improving material handling efficiency. Simultaneously, it avoids the safety hazards and maintenance costs of manual cleaning, is suitable for bulk material loading and unloading operations under complex working conditions, and possesses good economic efficiency and environmental adaptability.

[0079] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A bucket wheel mechanism for easy cleaning and unloading, comprising a wheel body (3) and a plurality of buckets (1) arranged circumferentially on the wheel body (3), characterized in that, The bucket (1) has a plurality of bucket teeth (2) arranged circumferentially at the front opening end; the bucket (1) includes an upper bucket body, an upper flip plate (102), a scraper (103), a lower flip plate (109) and a flipping drive component, wherein the lower flip plate (109) is located at the bottom of the upper bucket body and is hinged to the rear end of the upper bucket body by a hinge structure; the top of the upper bucket body has an opening, the upper flip plate (102) is hinged to the opening at the top of the upper bucket body, and scrapers (103) are provided on both sides of the upper flip plate (102), and the scrapers (103) on both sides are attached to the inner walls of both sides of the upper bucket body; the flipping drive component is hinged to the outside of the upper bucket body, and the output end is hinged to the upper flip plate (102), the flipping drive component is used to drive the upper flip plate (102) to open or close, and when the upper flip plate (102) flips, the sticky material on the inner surface of both sides of the upper bucket body is scraped off by the scrapers (103) on both sides.

2. The bucket wheel mechanism for easy cleaning and unloading according to claim 1, characterized in that, The upper bucket body includes a top plate (101), a rear plate (104), and two side plates (105), wherein the two side plates (105) are arranged in parallel, and the top and rear sides of the two side plates (105) are connected to the top plate (101) and the rear plate (104) respectively, and the rear plate (104) is inclined; the top plate (101) has an arc-shaped structure, and the opening is provided at one end near the rear plate (104).

3. The bucket wheel mechanism for easy cleaning and unloading according to claim 2, characterized in that, The upper flip plate (102) includes an arc plate (1021), side lugs (1022) disposed on both sides of the middle part of the arc plate (1021), and an upper lug (1023) disposed on the front side of the arc plate (1021). The two side lugs (1022) are used to hinge with the upper bucket body, and the upper lug (1023) is used to hinge with the flipping drive component. The two scrapers (103) are perpendicularly connected to the rear sides of the arc plate (1021).

4. The bucket wheel mechanism for easy cleaning and unloading according to claim 3, characterized in that, The rear plate (104) is provided with a hinge (106); the flipping drive component is a push rod (107), the tail of the push rod (107) is hinged to the hinge (106), and the output end of the push rod (107) is hinged to the upper lifting lug (1023) on the upper flip plate (102).

5. The bucket wheel mechanism for easy cleaning and unloading according to claim 1, characterized in that, The lower flap (109) includes a lower arc plate (1092) and hanging plates (1091) disposed on both sides of the rear end of the lower arc plate (1092), wherein the hanging plates (1091) are used to hinge with the upper bucket body.

6. The bucket wheel mechanism for easy cleaning and unloading according to claim 5, characterized in that, The hinge structure includes a locking assembly (108), a rotating sleeve (110), a torsion spring (111), an inner conical shaft (112), and a conical sleeve (113). The rotating sleeve (110) is fixed to the bottom of the rear end of the upper bucket body. One end of the inner conical shaft (112) is inserted into the rotating sleeve (110) and fixed by the locking assembly (108). The hanging plate (1091) is sleeved on the other end of the inner conical shaft (112) and is axially limited by the conical sleeve (113). The torsion spring (111) is disposed in the rotating sleeve (110) and is axially limited by the rotating sleeve boss (1104) on the inner side of the rotating sleeve (110). One short side of the torsion spring (111) is fixed to the rotating sleeve (110), and the other long side is led out from the rotating sleeve (110) and connected to the hanging plate (1091).

7. The bucket wheel mechanism for easy cleaning and unloading according to claim 6, characterized in that, The rotating sleeve (110) has a short side groove (1101) and a long side movable groove (1102) on both sides of the end face near the hanging plate (1091), and a long side fixed groove (1103) communicating with the long side movable groove (1102) is provided on the side wall of this end along the circumferential direction. The short side groove (1101) is used to fix the short side of the torsion spring (111), and the long side of the torsion spring (111) is guided into the long side fixed groove (1103) through the long side movable groove (1102). The other end of the rotating sleeve (110) is symmetrically provided with mounting holes for installing the locking assembly (108).

8. The bucket wheel mechanism for easy cleaning and unloading according to claim 7, characterized in that, The locking assembly (108) includes a locking release platform (1081), a locking fixing shaft platform (1082), and a spring (1083). Both ends of the locking fixing shaft platform (1082) are half-shaft structures, and the two half-shaft structures are respectively positioned and connected to the two locking release platforms (1081). The spring (1083) is connected between the locking release platform (1081) and the half-shaft structure. The locking release platform (1081) moves radially under the elastic force of the spring (1083), thereby restricting the locking fixing shaft platform (1082) from being dislodged from the mounting hole.

9. The bucket wheel mechanism for easy cleaning and unloading according to claim 8, characterized in that, The mounting hole includes a shaft hole (1107) and an enlarged hole (1106) located at the outer end of the shaft hole (1107). The bottom of the enlarged hole (1106) is a locking platform (1108). The locking fixing shaft platform (1082) passes through the shaft hole (1107), and the locking loosening platform (1081) is accommodated in the enlarged hole (1106) and its bottom contacts the locking platform (1108).

10. The bucket wheel mechanism for easy cleaning and unloading according to claim 8, characterized in that, The inner side of the half-shaft structure of the locking and fixing shaft platform (1082) is provided with a locking and fixing slide groove (10821) and a locking guide hole (10822); the locking and loosening platform (1081) includes a locking and loosening platform seat (10811) and a locking and loosening platform guide post (10812) and a locking and loosening platform slide plate (10813) disposed on the locking and loosening platform seat (10811), wherein the locking and loosening platform guide post (10812) is positioned and engaged with the locking guide hole (10822), the locking and loosening platform slide plate (10813) is slidably engaged with the locking and fixing slide groove (10821), and the spring (1083) is housed in the locking and fixing slide groove (10821), and its two ends abut against the locking and fixing shaft platform (1082) and the locking and loosening platform slide plate (10813) respectively.

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