Excavator working device with fine-adjustable bucket

Abstract

The utility model relates to the technical field of mining equipment, and provides an excavator working device with a fine-adjustable bucket, which comprises a rack, a bucket and a driving assembly unit, the driving assembly unit comprises a lifting mechanism, a bucket adjusting mechanism and a control unit; the lifting mechanism is used for loading and unloading materials through the bucket, and the bucket adjusting mechanism is used for achieving transverse swing of the bucket. The control unit is used for controlling the actions of the lifting mechanism and the bucket adjusting mechanism; the lifting mechanism is arranged on the rack; the bucket adjusting mechanism is arranged on the lifting mechanism, and the bucket is arranged on the bucket adjusting mechanism. According to the utility model, the decoupling with the movement of the vehicle body is realized when materials are loaded, the loading and unloading tasks of the materials can be still completed under the condition that the position of the vehicle body is kept unchanged, the materials are more flexibly shoveled, and the oil consumption is reduced; when meeting uneven road conditions, the bucket can be controlled to be finely adjusted to change the gravity center, and stable driving is achieved; energy consumption is saved, accurate dynamic weighing is achieved, and control precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to an excavator working device with an adjustable bucket. Background Technology

[0002] Excavators, as a major type of engineering machinery, play a vital role in mining machinery. With the construction of smart mines and the increasing level of mechanization, the performance requirements for excavators and other engineering machinery are also becoming more stringent. The performance of their working devices depends on the structure and dimensions of each component, and the performance of the excavator's working devices directly affects the overall working efficiency and quality of the machine. Therefore, research on the working devices is essential. The working device consists of the boom, stick, bucket, and the drive cylinders that control their rotation. They are connected by hinges, and the extension and retraction of the drive cylinders control the bucket to perform the working task.

[0003] The existing excavator working devices have the following defects: 1. The bucket is not flexible enough and consumes a lot of energy when shoveling materials; 2. It needs to move forward with the vehicle body to achieve the function of loading materials, which consumes a lot of fuel; 3. The coupled movement of the vehicle body and the working device will cause a decrease in control accuracy, which is a disadvantage for intelligent and autonomous operation; 4. The dynamic weighing error of materials is large due to the movement of the vehicle body; 5. It is easy to tilt when encountering uneven road conditions. Utility Model Content

[0004] The purpose of this invention is to overcome at least one of the shortcomings of the prior art and provide an excavator working device with an adjustable bucket, which decouples the loading of materials from the movement of the vehicle body. While the position of the vehicle body remains unchanged, the working device can still complete the loading and unloading of materials, and it can scoop materials more flexibly and reduce fuel consumption.

[0005] The present invention adopts the following technical solution:

[0006] An excavator working device with an adjustable bucket includes a frame, a bucket, and a drive assembly unit;

[0007] The drive assembly unit includes a lifting mechanism, a bucket adjustment mechanism, and a control unit; the lifting mechanism is used to load and unload materials by the bucket, the bucket adjustment mechanism is used to enable the bucket to swing laterally, the lateral swing changing the center of gravity of the material in the bucket or changing the bucket's scooping angle; the control unit is used to control the actions of the lifting mechanism and the bucket adjustment mechanism.

[0008] The lifting mechanism is mounted on the frame; the bucket adjustment mechanism is mounted on the lifting mechanism, and the bucket is mounted on the bucket adjustment mechanism.

[0009] In addition to any of the possible implementations described above, another implementation is provided in which the lifting mechanism includes a lifting boom, a lifting boom cylinder, a stick, and a stick cylinder;

[0010] The first end of the lifting boom is hinged to the frame, and the second end is hinged to the stick; there are two lifting boom cylinders, symmetrically arranged on both sides of the lifting boom, one end of each cylinder is hinged to the frame, and the other end is hinged to the lifting boom; the two lifting boom cylinders control the lifting boom to rotate around the first end of the lifting boom as the rotation center;

[0011] One end of the boom cylinder is hinged to the lifting boom, and the other end is hinged to the first end of the boom; the boom cylinder controls the boom to move about the hinge point between the lifting boom and the boom as the rotation center.

[0012] The second end of the boom is connected to the bucket via the bucket adjustment mechanism.

[0013] In addition to any of the possible implementations described above, another implementation is provided in which the bucket adjustment mechanism includes a bucket cylinder and an auxiliary drive mechanism;

[0014] One end of the bucket cylinder is hinged to the stick, and the other end is hinged to the middle of the bucket; the bucket cylinder controls the bucket's large-range movement.

[0015] The auxiliary drive mechanism comprises several components, each disposed on both sides of the bucket cylinder; each auxiliary drive mechanism is hinged at one end to the stick and at the other end to the bucket. The auxiliary drive mechanism fine-tunes the swing and angle of the bucket.

[0016] In addition to any of the possible implementations described above, another implementation is provided in which the bucket cylinder and each of the auxiliary drive mechanisms are composed of one or more of ball joints, rotary joints, prismatic joints, and Hooke joints.

[0017] In addition to any of the possible implementations described above, another implementation is provided in which the boom lifting cylinder and the stick cylinder are respectively one of an electric push rod, a hydraulic cylinder, and a pneumatic cylinder.

[0018] In addition to any of the possible implementations described above, another implementation is provided in which the bucket cylinder and each of the auxiliary drive mechanisms are respectively an electric push rod, a hydraulic cylinder, and a pneumatic cylinder.

[0019] In addition to any of the possible implementations described above, a further implementation is provided in which a pressure sensor is provided in each of the boom cylinder, the stick cylinder, the bucket cylinder, and each of the auxiliary drive mechanisms, and the pressure sensor is signal-connected to the control unit.

[0020] In addition to any of the possible implementations described above, a further implementation is provided in which the number of auxiliary drive mechanisms is two, respectively disposed on both sides of the bucket cylinder.

[0021] In addition to any of the possible implementations described above, another implementation is provided in which the number of auxiliary drive mechanisms is 3, 4 or 5, respectively arranged on both sides of the bucket cylinder.

[0022] In addition to any of the possible implementations described above, another implementation is provided in which the frame is mounted on an excavator.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. By changing the degrees of freedom of the bucket adjustment mechanism assembly and replacing the bucket tools, it can be transformed into the working device of different mining equipment, such as the working device of a loader, the working device of a tunneling machine, and the working device of a coal washing machine, which enhances the versatility of the mining equipment.

[0025] 2. It can automatically perform the tasks of loading, transporting and unloading materials.

[0026] 3. It achieves decoupling from the vehicle body movement during material loading, so that the working device can still load and unload materials while the vehicle body position remains unchanged.

[0027] 4. When encountering uneven road conditions, the working device can control the bucket to make fine adjustments, change the center of gravity, and ensure smooth driving.

[0028] 5. It has achieved functions such as energy saving and precise dynamic weighing, improved control accuracy, and laid the foundation for intelligentization. Attached Figure Description

[0029] Figure 1 The diagram shown is a structural schematic of an excavator working device with an adjustable bucket according to an embodiment of the present invention.

[0030] In the diagram: 1-Frame; 2-Lifting boom cylinder; 3-Lifting boom; 4-Stick cylinder; 5-Stick; 6-Auxiliary drive mechanism; 7-Bucket; 8-Bucket cylinder. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered in isolation, but can be combined with each other to achieve better technical effects.

[0032] like Figure 1As shown in the figure, an excavator working device with an adjustable bucket according to an embodiment of the present invention includes a frame 1, a bucket 7 and a drive assembly unit;

[0033] The drive assembly unit includes a lifting mechanism, a bucket adjustment mechanism, and a control unit; the lifting mechanism is used to load and unload materials from the bucket 7, the bucket adjustment mechanism is used to enable the bucket 7 to swing laterally, the lateral swing changing the center of gravity of the material in the bucket 7 or changing the scooping angle of the bucket 7; the control unit is used to control the actions of the lifting mechanism and the bucket adjustment mechanism.

[0034] The lifting mechanism is mounted on the frame 1; the bucket adjustment mechanism is mounted on the lifting mechanism, and the bucket 7 is mounted on the bucket adjustment mechanism.

[0035] In one specific embodiment, the lifting mechanism includes a lifting boom 3, a lifting boom cylinder 2, a stick 5, and a stick cylinder 4;

[0036] The first end of the lifting boom 3 is hinged to the frame 1, and the second end is hinged to the stick 5; there are two lifting boom cylinders 2, symmetrically arranged on both sides of the lifting boom 3, one end of the lifting boom cylinder 2 is hinged to the frame 1, and the other end is hinged to the lifting boom 3; under the command and control of the control unit, the two lifting boom cylinders 2 control the lifting boom 3 to rotate around the first end of the lifting boom 3 as the rotation center;

[0037] One end of the boom cylinder 4 is hinged to the lifting boom 3, and the other end is hinged to the first end of the boom 5; under the command and control of the control unit, the boom cylinder 4 controls the boom 5 to move around the hinge point between the lifting boom 3 and the boom 5 as the rotation center.

[0038] The second end of the boom 5 is connected to the bucket 7 via the bucket adjustment mechanism.

[0039] In one specific embodiment, the bucket adjustment mechanism includes a bucket cylinder 8 and an auxiliary drive mechanism 6;

[0040] One end of the bucket cylinder 8 is hinged to the stick 5, and the other end is hinged to the middle of the bucket 7;

[0041] The auxiliary drive mechanism 6 includes several units, which are respectively arranged on both sides of the bucket cylinder 8; each auxiliary drive mechanism 6 is hinged to the stick 5 at one end and to the bucket 7 at the other end.

[0042] In one specific embodiment, the bucket cylinder 8 and each of the auxiliary drive mechanisms 6 are composed of one or more of the following: ball joint, rotary joint, prismatic joint, and Hooke's joint.

[0043] In one specific embodiment, the boom lifting cylinder 2 and the stick cylinder 4 are respectively one of an electric push rod, a hydraulic cylinder, and a pneumatic cylinder.

[0044] In one specific embodiment, the bucket cylinder 8 and each of the auxiliary drive mechanisms 6 are respectively one of an electric push rod, a hydraulic cylinder, and a pneumatic cylinder.

[0045] In one specific embodiment, a pressure sensor is installed in each of the boom cylinder 2, the stick cylinder 4, the bucket cylinder 8, and each of the auxiliary drive mechanisms 6. The pressure sensors are signal-connected to the control unit. The installation of pressure sensors allows for the acquisition of pressure on each drive mechanism, enabling multi-cylinder detection and thus achieving the weighing function.

[0046] In one specific embodiment, there are two auxiliary drive mechanisms 6, which are respectively arranged on both sides of the bucket cylinder 8.

[0047] In one specific embodiment, the number of auxiliary drive mechanisms 6 is 3, 4 or 5, respectively arranged on both sides of the bucket cylinder 8.

[0048] The frame 1 is mounted on the excavator and moves as a whole with the excavator.

[0049] Under the control unit, the bucket 7 completes the loading and unloading of materials through the cooperation of the lifting mechanism and the auxiliary drive mechanism 6.

[0050] Under the control unit, the bucket 7 can swing left and right through the auxiliary drive mechanism 6 to change the center of gravity of the material. At the same time, the "sliding" angle of the bucket 7 can be changed according to the specific conditions of the material when loading it, so as to achieve the digging method with the least resistance, improve efficiency and reduce energy consumption.

[0051] The working principle of this utility model is as follows:

[0052] Under the control of the control unit, firstly, the boom cylinder 2 and stick cylinder 4 work together to move the bucket 7 to the material location. Then, the auxiliary drive mechanism 6 fine-tunes the blade of the bucket 7 to achieve "sliding cut" of the material and load it, reducing energy consumption. During this process, the frame 1 remains unchanged, meaning the excavator does not need to move. After loading, the boom cylinder 2 and stick cylinder 4 work together to transport the material to the target location for unloading. Finally, the bucket 7 returns to its original state. During operation, when encountering uneven road conditions, the auxiliary drive mechanism 6 can control the bucket 7 to swing left and right to ensure stable travel. Simultaneously, the pressure on the drive mechanism is obtained from the pressure sensors in the boom cylinder 2, stick cylinder 4, and auxiliary drive mechanism 6, thereby enabling the weighing function of the bucket 7.

[0053] This invention decouples the loading and unloading of materials from the vehicle body movement. While the vehicle body position remains unchanged, the working device can still complete the loading and unloading tasks, and it can scoop materials more flexibly, reducing fuel consumption. When encountering uneven road conditions, the working device can control the bucket 7 to make fine adjustments, change the center of gravity, and ensure stable driving. This working device realizes functions such as energy saving and precise dynamic weighing, improves control accuracy, and lays the foundation for intelligent operation.

[0054] While several embodiments of the present invention have been provided herein, those skilled in the art should understand that modifications can be made to the embodiments without departing from the spirit of the present invention. The above embodiments are merely exemplary and should not be construed as limiting the scope of the present invention.

Claims

1. An excavator working device with an adjustable bucket, characterized in that, The excavator includes a frame, a bucket, and a drive assembly unit; The drive assembly unit includes a lifting mechanism, a bucket adjustment mechanism, and a control unit; the lifting mechanism is used to load and unload materials by the bucket, the bucket adjustment mechanism is used to enable the bucket to swing laterally, the lateral swing changing the center of gravity of the material in the bucket or changing the bucket's scooping angle; the control unit is used to control the actions of the lifting mechanism and the bucket adjustment mechanism. The lifting mechanism is mounted on the frame; the bucket adjustment mechanism is mounted on the lifting mechanism, and the bucket is mounted on the bucket adjustment mechanism.

2. The excavator working device with an adjustable bucket as described in claim 1, characterized in that, The lifting mechanism includes a lifting boom, a lifting boom cylinder, a stick, and a stick cylinder; The first end of the lifting boom is hinged to the frame, and the second end is hinged to the stick; there are two lifting boom cylinders, symmetrically arranged on both sides of the lifting boom, one end of each cylinder is hinged to the frame, and the other end is hinged to the lifting boom; the two lifting boom cylinders control the lifting boom to rotate around the first end of the lifting boom as the rotation center; One end of the boom cylinder is hinged to the lifting boom, and the other end is hinged to the first end of the boom; the boom cylinder controls the boom to move about the hinge point between the lifting boom and the boom as the rotation center. The second end of the boom is connected to the bucket via the bucket adjustment mechanism.

3. The excavator working device with an adjustable bucket as described in claim 2, characterized in that, The bucket adjustment mechanism includes a bucket cylinder and an auxiliary drive mechanism; One end of the bucket cylinder is hinged to the stick, and the other end is hinged to the middle of the bucket; The auxiliary drive mechanism comprises several units, which are respectively arranged on both sides of the bucket cylinder; each auxiliary drive mechanism is hinged to the stick at one end and to the bucket at the other end.

4. The excavator working device with an adjustable bucket as described in claim 3, characterized in that, The bucket cylinder and each of the auxiliary drive mechanisms are composed of one or more of the following: ball joint, rotary joint, prismatic joint, and Hooke's joint.

5. The excavator working device with an adjustable bucket as described in claim 2, characterized in that, The boom lifting cylinder and the stick cylinder are respectively one of an electric push rod, a hydraulic cylinder, and a pneumatic cylinder.

6. The excavator working device with an adjustable bucket as described in claim 3, characterized in that, The bucket cylinder and each of the auxiliary drive mechanisms are respectively one of an electric push rod, a hydraulic cylinder, and a pneumatic cylinder.

7. The excavator working device with an adjustable bucket as described in claim 6, characterized in that, Each of the boom cylinder, stick cylinder, bucket cylinder, and auxiliary drive mechanism is equipped with a pressure sensor, and the pressure sensor is signal-connected to the control unit.

8. The excavator working device with an adjustable bucket as described in claim 3, characterized in that, There are two auxiliary drive mechanisms, which are respectively located on both sides of the bucket cylinder.

9. The excavator working device with an adjustable bucket as described in claim 3, characterized in that, The number of auxiliary drive mechanisms is 3, 4 or 5, respectively located on both sides of the bucket cylinder.

10. The excavator working device with an adjustable bucket as described in claim 1, characterized in that, The frame is mounted on the excavator.

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