Auxiliary device for material stacking of bucket wheel machine

Abstract

The utility model provides an auxiliary device for bucket wheel machine stacking, and relates to the technical field of bucket wheel machine stacking, the auxiliary device comprises a mounting frame used for being fixed on a bucket wheel machine cantilever, the mounting frame is rotatably connected with a folding rod, and the end, away from the mounting frame, of the folding rod is provided with a material height sensor; the folding rod is controlled to be folded or unfolded through the driving assembly, and the position of the material height sensor can be flexibly adjusted, so that the material height sensor can meet the requirement for detecting the height of the surface material on the lower right sliding surface of a material pile when materials are stacked, and the material height sensor can also be used for detecting the height of the surface material on the lower right sliding surface of the material pile when the materials are stacked. And the requirement for detecting the height of the surface material position in the right front of a material pile can be met during material pouring, so that the bucket wheel machine can better adapt to different material stacking modes, the adaptability and the flexibility of the material stacking operation of the bucket wheel machine are improved, the low material stacking efficiency caused by relying on artificial experience or fixed operation procedures is avoided, and the material pile is more regular and stable.

Description

Technical Field

[0001] This application relates to the field of bucket wheel excavator stacking technology, and more specifically, to an auxiliary device for bucket wheel excavator stacking. Background Technology

[0002] In traditional fully automated stacking operations using bucket wheel excavators, the stacking path depends on the installation location of the material height sensor, which is typically located at the front right of the cantilever head to detect the material level on the right-side ramp surface. During stacking operations, a rotary method is generally used. After completing one round of stacking from left to right, the trolley reverses, and this cycle is repeated to carry out the stacking operation.

[0003] However, in the existing technology, most material height sensors adopt a fixed structure, and their position on the cantilever head cannot be flexibly adjusted. When the operation mode changes to the stacking operation that requires the large vehicle to move forward, it mostly relies on manual experience or fixed operation procedures for control, which makes it difficult to adapt to changes in the shape of the material pile in real time and dynamically, resulting in low stacking efficiency and poor stability of the resulting material pile. Summary of the Invention

[0004] The purpose of this application is to provide an auxiliary device for stacking materials in a bucket wheel excavator. This device can solve the technical problems in the prior art where the material height sensor is often directly fixed on the cantilever of the bucket wheel excavator, and its position cannot be flexibly adjusted. During the stacking operation, it relies on manual experience or fixed operating procedures, which makes it difficult to adapt to changes in the shape of the material pile, resulting in low stacking efficiency and poor material pile stability.

[0005] This application provides an auxiliary device for stacking materials in a bucket wheel excavator, including a mounting frame for fixing to the cantilever of the bucket wheel excavator. A folding rod is rotatably connected to the mounting frame. A material height sensor is provided at one end of the folding rod away from the mounting frame. The mounting frame is provided with a drive assembly for driving the folding rod to fold or unfold relative to the mounting frame.

[0006] Furthermore, the drive assembly includes a drive motor, a drum, and a wire rope. The drive motor is fixed on the mounting frame, and the drum is fixed on the output shaft of the drive motor. A guide upper pulley and a guide lower pulley are rotatably disposed on the mounting frame. The guide upper pulley is located above the guide lower pulley. One end of the wire rope is connected to the drum, and the other end of the wire rope passes between the guide upper pulley and the guide lower pulley and is connected to the end of the folding rod away from the mounting frame.

[0007] Furthermore, a limiting fork is fixed on the mounting bracket, and the limiting fork is located below the guide pulley. When the drive assembly drives the folding rod to retract, the folding rod abuts against the limiting fork.

[0008] Furthermore, a connecting rod is fixedly provided at one end of the folding rod, and bearing seats are provided at both ends of the connecting rod. The connecting rod is rotatably connected to the mounting frame through the bearing seats.

[0009] Furthermore, the end of the folding rod away from the mounting bracket is bent downwards, and the material height sensor is rotatably disposed on the side of the bent section of the folding rod close to the mounting bracket.

[0010] Furthermore, a connector is fixedly provided on the side of the bent section of the folding rod near the mounting frame. The connector is provided with an annular connecting part. A connecting seat is fixedly provided on the top of the material height sensor. The connecting seat is provided with a connecting groove. A connecting shaft is fixedly provided on the connecting seat. The annular connecting part is located in the connecting groove and the connecting shaft passes through the annular connecting part.

[0011] The beneficial effects of this utility model are:

[0012] This invention controls the folding or unfolding of the folding rod through a drive component, which can flexibly adjust the position of the material height sensor. This allows it to meet the requirements of detecting the material level of the right-sloping material pile during upright stacking and also to meet the requirements of detecting the material level of the right front of the material pile during reverse stacking. This better adapts to different stacking modes, improves the adaptability and flexibility of the bucket wheel excavator's stacking operation, avoids low stacking efficiency due to reliance on manual experience or fixed operating procedures, and makes the material pile more regular and stable. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying 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 based on these drawings without creative effort.

[0014] Figure 1 These are schematic diagrams of structures in some embodiments of this application;

[0015] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0016] Figure 3 This is a schematic diagram showing the position of the auxiliary device of this application fixed on the cantilever of the bucket wheel excavator;

[0017] The reference numerals in the attached figures are as follows:

[0018] 1. Mounting frame; 2. Folding rod; 3. Material height sensor; 4. Drive assembly; 41. Drive motor; 42. Drum; 43. Wire rope; 5. Upper guide pulley; 6. Lower guide pulley; 7. Limiting fork; 8. Connecting rod; 9. Bearing seat; 10. Connecting piece; 101. Annular connecting part; 11. Connecting seat; 111. Connecting groove; 112. Connecting shaft; 12. Bucket wheel excavator cantilever. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of 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. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 application based on the specific circumstances. Specific implementation examples:

[0026] This application provides an auxiliary device for stacking materials using a bucket wheel excavator, including a mounting frame 1 for fixing to the cantilever 12 of the bucket wheel excavator. A folding rod 2 is rotatably connected to the mounting frame 1. A material height sensor 3 is provided at the end of the folding rod 2 away from the mounting frame 1. The mounting frame 1 is provided with a drive assembly 4 for driving the folding rod 2 to fold or unfold relative to the mounting frame 1. By controlling the folding or unfolding of the folding rod 2 through the drive assembly 4, the position of the material height sensor 3 can be flexibly adjusted so that it can meet the requirements of detecting the material level height of the right-sloping material pile during upright stacking and the requirements of detecting the material level height of the right front of the material pile during reverse stacking. This better adapts to different stacking modes, improves the adaptability and flexibility of the bucket wheel excavator stacking operation, avoids low stacking efficiency due to reliance on manual experience or fixed operating procedures, and makes the material pile more regular and stable.

[0027] Drive assembly 4 includes a drive motor 41, a drum 42, and a wire rope 43. The drive motor 41 is fixed on the mounting frame 1, and the drum 42 is fixed on the output shaft of the drive motor 41. A guide pulley 5 and a guide pulley 6 are rotatably mounted on the mounting frame 1, with the guide pulley 5 located above the guide pulley 6. One end of the wire rope 43 is connected to the drum 42, and the other end of the wire rope 43 passes between the guide pulley 5 and the guide pulley 6 and is connected to the end of the folding rod 2 away from the mounting frame 1. The drive motor 41 drives the drum 42 to rotate, causing the wire rope 43 to wind around the drum 42. The wire rope 43 on the drum 42 is wound up and down as the drum 42 rotates. Specifically, when the drum 42 winds up the wire rope 43, the wire rope 43 pulls the folding rod 2 to rotate towards the mounting frame 1, realizing the folding action. When the drum 42 unwinds the wire rope 43, the folding rod 2 rotates away from the mounting frame 1 under its own weight, realizing the unfolding action. This achieves the purpose of adjusting the position of the material height sensor 3, which helps to place the material height sensor 3 more accurately at the required detection position in different material stacking operation scenarios, thereby improving the accuracy of material level detection.

[0028] A limiting fork 7 is fixed on the mounting bracket 1. The limiting fork 7 is located below the guide pulley 6. When the drive assembly 4 drives the folding rod 2 to retract, the folding rod 2 abuts against the limiting fork 7. When the drive assembly 4 drives the folding rod 2 to retract, the folding rod 2 rotates around the rotation connection point with the mounting bracket 1 and moves towards the mounting bracket 1. When the folding rod 2 retracts to a certain position, the folding rod 2 abuts against the limiting fork 7. At this time, the limiting fork 7 prevents the folding rod 2 from continuing to rotate towards the mounting bracket 1, thereby limiting the retraction position of the folding rod 2 and ensuring that the folding rod 2 can accurately stop at the preset position when retracting, avoiding excessive retraction that may damage the equipment or affect its normal operation.

[0029] A connecting rod 8 is fixed at one end of the folding rod 2. Both ends of the connecting rod 8 are provided with bearing seats 9. The connecting rod 8 is rotatably connected to the mounting frame 1 through the bearing seats 9. Specifically, bearing seats 9 are installed at both ends of the connecting rod 8. The bearing seats 9 connect the connecting rod 8 to the mounting frame 1. Utilizing the characteristics of the bearing, the connecting rod 8 can rotate smoothly within the bearing seats 9. The bearings within the bearing seats 9 can greatly reduce the rotational friction between the connecting rod 8 and the mounting frame 1, making the folding rod 2 rotate more smoothly and reducing energy loss.

[0030] The end of the folding rod 2 away from the mounting frame 1 is bent downwards. The material height sensor 3 is rotatably set on the side of the bent section of the folding rod 2 that is close to the mounting frame 1. When the folding rod 2 is folded close to the mounting frame 1, the bent section of the folding rod 2 is set to provide a certain clearance for the material height sensor 3, so as to avoid the material height sensor 3 touching the folding rod 2 when the folding rod 2 is folded and causing damage to the material height sensor 3.

[0031] A connector 10 is fixedly provided on the side of the bent section of the folding rod 2 near the mounting frame 1. The connector 10 is provided with an annular connecting part 101. A connecting seat 11 is fixedly provided on the top of the material height sensor 3. A connecting groove 111 is provided on the connecting seat 11. A connecting shaft 112 is fixedly provided on the connecting seat 11. The annular connecting part 101 is located in the connecting groove 111 and the connecting shaft 112 passes through the annular connecting part 101. Through the cooperation between the annular connecting part 101, the connecting groove 111 and the connecting shaft 112, the material height sensor 3 can rotate around the connecting shaft 112 within a certain range. When the folding rod 2 is folded or unfolded, the material height sensor 3 remains hanging down under its own weight, ensuring the accuracy of detection.

[0032] Working principle:

[0033] like Figure 3As shown, in use, the mounting bracket 1 is welded to the cantilever of the bucket wheel excavator, and the material height sensor 3 is electrically connected to the controller. The controller is used to receive the signal transmitted by the material height sensor 3. Based on the feedback signal from the material height sensor 3, the controller controls the rotation of the cantilever and the direction of movement of the trolley of the bucket wheel excavator. The device of this application replicates the process of forward and reverse material stacking of the bucket wheel excavator as follows:

[0034] 1. Positive stack process:

[0035] Driven by the drive assembly 4, the folding rod 2 retracts the material height detection sensor to the front of the bucket wheel excavator cantilever 12. At this time, the material height sensor 3 is perpendicular to the ground and detects the distance to the lower right of the material pile cone. When the detected distance is less than the set value, the cantilever turns to the right, so that the subsequent material can be piled up at a place slightly away from the current position, thereby preventing the material pile at this position from continuing to increase in height. This process continues until the detection distance returns to the set value. The above detection and adjustment process is repeated until the material pile is detected to reach the right boundary. At this time, the trolley reverses, and the bucket wheel excavator cantilever 12 rotates to the left boundary to start a new round of material stacking operation.

[0036] 2. Reverse stacking process:

[0037] Driven by the drive assembly 4, the folding rod 2 extends the material height detection sensor to a position away from the front of the bucket wheel excavator cantilever 12. At this time, the material height sensor 3 is perpendicular to the ground and detects the distance to the right front of the material pile cone. When the detected right front distance is less than the set value, the cantilever turns to the left (in the stacking process, the material needs to be stacked in the opposite direction to the upright stack), so that the material is stacked on the left side to avoid the material pile on the right side being too high. This process continues until the detection distance returns to the set value. The above detection and adjustment process is repeated until the material pile is detected to reach the left boundary. At this time, the trolley moves forward, and the bucket wheel excavator cantilever 12 rotates back to the right boundary to start a new round of stacking operations.

[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An auxiliary device for stacking materials in a bucket wheel excavator, characterized in that: It includes a mounting bracket for fixing to the cantilever of a bucket wheel excavator, a folding rod rotatably connected to the mounting bracket, a material height sensor being provided at the end of the folding rod away from the mounting bracket, and a drive assembly for driving the folding rod to fold or unfold relative to the mounting bracket.

2. The auxiliary device for stacking materials in a bucket wheel excavator according to claim 1, characterized in that: The drive assembly includes a drive motor, a drum, and a wire rope. The drive motor is fixed on the mounting frame, and the drum is fixed on the output shaft of the drive motor. A guide upper pulley and a guide lower pulley are rotatably mounted on the mounting frame. The guide upper pulley is located above the guide lower pulley. One end of the wire rope is connected to the drum, and the other end of the wire rope passes between the guide upper pulley and the guide lower pulley and is connected to the end of the folding rod away from the mounting frame.

3. An auxiliary device for stacking materials in a bucket wheel excavator according to claim 2, characterized in that: A limiting fork is fixed on the mounting bracket. The limiting fork is located below the guide pulley. When the drive assembly drives the folding rod to retract, the folding rod abuts against the limiting fork.

4. The auxiliary device for stacking materials in a bucket wheel excavator according to claim 1, characterized in that: One end of the folding rod is fixed with a connecting rod, and both ends of the connecting rod are provided with bearing seats. The connecting rod is rotatably connected to the mounting frame through the bearing seats.

5. An auxiliary device for stacking materials in a bucket wheel excavator according to claim 1, characterized in that: The end of the folding rod away from the mounting frame is bent downwards, and the material height sensor is rotatably mounted on the side of the bent section of the folding rod close to the mounting frame.

6. An auxiliary device for stacking materials in a bucket wheel excavator according to claim 5, characterized in that: A connector is fixedly provided on the side of the bent section of the folding rod near the mounting frame. The connector is provided with an annular connecting part. A connecting seat is fixedly provided on the top of the material height sensor. The connecting seat is provided with a connecting groove. A connecting shaft is fixedly provided on the connecting seat. The annular connecting part is located in the connecting groove and the connecting shaft passes through the annular connecting part.

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