Multifunctional excavator mechanical arm device

Abstract

The utility model discloses a multifunctional excavator mechanical arm device which comprises an excavator bucket rod, one end of the excavator bucket rod is connected with an excavator large arm in an assembling mode, the other end of the excavator bucket rod is connected with an electromagnetic chuck and a thumb clamp in a rotating mode, and a thumb clamp is arranged between the excavator bucket rod and the electromagnetic chuck. And driving mechanisms are arranged between the excavator bucket rod and the thumb clamp. When construction is carried out, the electromagnetic chuck can be selected to carry out magnetic attraction movement on magnetic materials, clamping movement of the materials can be achieved through clamping cooperation of the electromagnetic chuck and the thumb clamp, the electromagnetic chuck cannot stably attract steel wire ropes or reinforcing steel bars under the condition that the steel wire ropes or the reinforcing steel bars are clustered, and therefore the materials can not be damaged. The thumb clamp can be adopted to form a clamping mechanism for clamping, tearing and shearing, the electromagnetic chuck plays a great role in screening mixed steel scraps, if many impurities exist in the steel scraps, the electromagnetic chuck is used for sucking all the steel scraps, the impurities are left in situ, and rapid screening of the mixed steel scraps is achieved.

Description

Technical Field

[0001] This utility model relates to the field of excavator robotic arm technology, and in particular to a multi-functional excavator robotic arm device. Background Technology

[0002] The excavator boom, also known as the excavator arm or excavator robotic arm, is a key component of an excavator for digging, loading, and other operations. Its working principle is driven by a series of hydraulic cylinders and a hydraulic power system. The boom consists of multiple articulated arms connected together, each segment controlled by hydraulic cylinders for its extension, retraction, and rotation. These hydraulic cylinders are divided into extension cylinders and rotation cylinders. By controlling the direction and speed of oil flow in different cylinders, the excavator boom can achieve precise movements, thereby completing various digging, loading, and leveling tasks. The functionality of the excavator boom is closely related to its bucket structure and shape.

[0003] Existing excavator robotic arms can grip materials or magnetically attract magnetic materials, but cannot achieve both gripping and magnetic attraction on the same robotic arm as needed.

[0004] Chinese patent document CN202064379U discloses a double grab bucket for excavators. This double grab bucket has a drawbar hinged at its upper end to the excavator's forearm, with lugs on its side hinged to a swing drive device on the forearm. Two grab buckets with opposing openings are hinged to the lower end of the drawbar. A sliding sleeve is fitted onto the drawbar, and a vertical groove is located in the middle of the drawbar. A push-pull cylinder is installed in this groove, connecting the drawbar and the sliding sleeve. Connecting plates are hinged between the sliding sleeve and each grab bucket. This invention has digging, grabbing, and shoveling functions, allowing the excavator to operate at high, medium, and low positions. The double buckets provide stable material grabbing, a large loading capacity, and flexible operation, making it suitable for loading materials such as earth, coal, sand, gravel, and silt. It not only enhances the excavator's functionality but is also superior to existing loaders. However, this excavator's double grab bucket uses a clamping method to move materials, and it cannot screen materials based on whether they are magnetic.

[0005] To address the shortcomings of the existing technology, providing a multi-functional excavator robotic arm device is a problem worthy of research. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing excavator robotic arms, which can clamp materials or magnetically attract magnetic materials, but cannot achieve clamping or magnetic attraction on the same robotic arm as needed. This invention provides a multi-functional excavator robotic arm device that achieves the technical effect of clamping and magnetic attraction simultaneously.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A multifunctional excavator mechanical arm device, comprising an excavator dipper rod, one end of the excavator dipper rod is assembled with an excavator boom, the other end of the excavator dipper rod is rotatably connected with an electromagnetic suction disc and a thumb clamp, and a driving mechanism is arranged between the excavator dipper rod and the electromagnetic suction disc and between the excavator dipper rod and the thumb clamp.

[0009] The electromagnetic suction disc and the thumb clamp are rotatably connected on the same rotating shaft at the end of the excavator dipper rod, and the end of the electromagnetic suction disc is fixedly connected with a plurality of dipper teeth.

[0010] The edge of the electromagnetic suction disc extends outward to form a rectangular structure, which increases the clamping area when the electromagnetic suction disc and the thumb clamp cooperate to clamp, and increases the total amount of clamped materials in a single clamping.

[0011] The electromagnetic suction disc is disc-shaped.

[0012] A knife groove is formed on one side of the bottom of the electromagnetic suction disc, and a cutting blade is fixedly connected to one side of the thumb clamp, the positions of the knife groove and the cutting blade correspond to each other, and the knife groove and the cutting blade are located at one end close to the excavator dipper rod.

[0013] A first oil cylinder is rotatably connected to the top of the excavator dipper rod, a swing rod is rotatably connected to the front end of the excavator dipper rod on both sides, and a connecting rod is rotatably connected to the top of the electromagnetic suction disc.

[0014] The output end of the first oil cylinder, one end of the swing rod, and one end of the connecting rod are rotatably connected to the same rotating shaft, the driving mechanism is driven by the first oil cylinder, the swing rod, and the connecting rod, and the electromagnetic suction disc is driven to rotate at the end of the excavator dipper rod, thereby realizing the movement of the magnetically attracted materials or clamping with the thumb clamp.

[0015] A second oil cylinder is rotatably connected to the bottom of the excavator dipper rod, and the output end of the second oil cylinder is rotatably connected to the back of the thumb clamp.

[0016] Positive beneficial effects:

[0017] 1. The multifunctional excavator mechanical arm device, when performing construction, can select to use the electromagnetic suction disc to magnetically attract and move the magnetic material, can also use the electromagnetic suction disc and the thumb clamp to realize the clamping and moving of the material, so that the excavator mechanical arm can change the construction mode at any time to realize the movement of the material, and for the case that the steel wire rope or steel bar is in a lump, the electromagnetic suction disc cannot realize stable adsorption, and the thumb clamp can be used to form a clamping mechanism to clamp, tear and shear.

[0018] 2. The multifunctional excavator mechanical arm device, the electromagnetic suction disc has great effect in screening mixed scrap steel, if there are many impurities in the scrap steel, the scrap steel is all attracted by the electromagnetic suction disc, and the impurities are left in place, realizing rapid screening of mixed steel, and the remaining scrap steel can be directly used for construction by using the clamping structure, avoiding the case that the remaining impurities need to be replaced by construction equipment, and improving the construction efficiency.

[0019] 3. The multifunctional excavator mechanical arm device, when the steel bar is loaded, unloaded or moved, there is a case that the steel bar cannot be pulled apart, which is not convenient for construction, so that the electromagnetic suction disc and the thumb clamp are clamped together, the cutting blade cuts the steel bar and enters the knife groove, realizing shearing of the steel bar. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the clamping state of the utility model;

[0021] Figure 2 It is a structure schematic view of the clamping state of the utility model from the bottom;

[0022] Figure 3 It is an enlarged structure schematic view of position A in the utility model; Figure 2

[0023] Figure 4 It is a sectional structure schematic view of the clamping state of the utility model;

[0024] Figure 5 It is an enlarged structure schematic view of position B in the utility model; Figure 4

[0025] Figure 6 It is a structure schematic view of the magnetic attraction state of the utility model;

[0026] Figure 7 It is an enlarged structure schematic view of position C in the utility model; Figure 6

[0027] Figure 8 It is a structure schematic view of the magnetic attraction state of the utility model from the bottom;

[0028] Figure 9 ​​​Structure schematic view of the embodiment 2 of the utility model.

[0029] In the figure: 1-excavator boom, 2-electromagnetic chuck, 3-thumb clamp, 4-bucket tooth, 5-cutter groove, 6-truncation blade, 7-first oil cylinder, 8-swinging lever, 9-connecting rod, 10-second oil cylinder. DETAILED DESCRIPTION

[0030] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Embodiment 1

[0031] As Figures 1 to 9 shown, a multifunctional excavator mechanical arm device, including excavator boom 1, one end of excavator boom 1 is assembled and connected with excavator boom, the other end of excavator boom 1 is rotatably connected with electromagnetic chuck 2 and thumb clamp 3, and drive mechanisms are arranged between excavator boom 1 and electromagnetic chuck 2 and between excavator boom 1 and thumb clamp 3.

[0032] As Figures 1 to 2 shown, electromagnetic chuck 2 and thumb clamp 3 are rotatably connected on the same rotating shaft at the end of excavator boom 1, and the end of electromagnetic chuck 2 is fixedly connected with a plurality of bucket teeth 4, by arranging electromagnetic chuck 2 and thumb clamp 3 on the same rotating shaft, the two can be relatively rotated to complete clamping work at various angles, so that the two can fully cooperate to complete stable clamping of the material at different angles, and the device can select the construction mode as needed, when construction, electromagnetic chuck 2 can be selected to be used to magnetically attract and move the material with magnetism, or the clamping cooperation of electromagnetic chuck 2 and thumb clamp 3 can be used to realize clamping and moving of the material, so that the excavator mechanical arm can change the construction mode at any time to realize the movement of the material, especially for the steel wire rope or steel bar in a group or the steel plate corner material that has been in a group, when the electromagnetic chuck is magnetically attracted, it will fall off, or it cannot be magnetically attracted or separated, at this time, the thumb clamp can be used to form a clamping mechanism with the electromagnetic chuck to clamp, tear and cut, tear and move them, if there are still a small amount of steel wire rope or steel bar or scrap steel strip that have not been completely torn apart, at this time, the cutting function can be used to cut them;

[0033] Further, the electromagnetic suction disc 2 has great effect in screening mixed scrap steel. If there are many impurities in the scrap steel, the scrap steel can be completely sucked up by the electromagnetic suction disc 2, and the impurities remain in place, realizing rapid screening of mixed steel. The remaining scrap steel can be directly used for construction by the clamping structure, avoiding the need to replace the construction equipment to process the remaining impurities, and improving the construction efficiency.

[0034] As shown in Figures 1 to 8 , the edges of the electromagnetic suction disc 2 extend outward to form a rectangular structure. By extending the edges of the electromagnetic suction disc 2 to form a rectangular structure, the clamping area when the electromagnetic suction disc 2 cooperates with the thumb clamp 3 is increased, thereby increasing the total amount of material clamped at a time. Embodiment 2

[0035] As shown in Figure 9 , the electromagnetic suction disc 2 is disc-shaped. By setting the disc-shaped electromagnetic suction disc 2, the weight of the electromagnetic suction disc 2 is minimized, and the flexibility of the device is improved. Embodiment 3

[0036] As shown in Figures 2 to 3 , the bottom of the electromagnetic suction disc 2 is provided with a knife groove 5 on one side, and the thumb clamp 3 is fixedly connected with a cutting blade 6 on one side. The positions of the knife groove 5 and the cutting blade 6 correspond to each other, and both are located near one end of the excavator arm 1. By setting the knife groove 5 and the cutting blade 6 on the electromagnetic suction disc 2 and the thumb clamp 3 respectively, when the steel bar cannot be pulled apart during loading, unloading or moving, it is not convenient for construction. The electromagnetic suction disc 2 and the thumb clamp 3 are clamped and cooperated, and the cutting blade 6 cuts the steel bar and enters the knife groove 5, realizing shearing of the steel bar, and making the device more convenient for processing long steel bars.

[0037] Further, the cutting blade 6 is provided on the electromagnetic suction disc 2 and the thumb clamp 3, and the cutting blade 6 is arranged in the middle of the electromagnetic suction disc 2 and the thumb clamp 3. The cooperation of the two cutting blades 6 realizes shearing of the steel bar, and the cutting of the steel bar is more rapid and smooth. The cutting blade 6 arranged in the middle can avoid the inconvenience of arranging the cutting structure on both sides of the disc-shaped electromagnetic suction disc 2. Embodiment 4

[0038] As shown in Figures 1 to 8 , the top of the excavator arm 1 is rotatably connected with a first oil cylinder 7, the two sides of the front end of the excavator arm 1 are rotatably connected with a swing rod 8, and the top of the connecting mechanism of the electromagnetic suction disc 2 is rotatably connected with a connecting rod 9.

[0039] The output end of the first oil cylinder 7, one end of the swing rod 8 and one end of the connecting rod 9 are rotationally connected to the same rotating shaft, the driving mechanism of the swing rod 8 and the connecting rod 9 is driven by the first oil cylinder 7 arranged on the excavator arm 1, the electromagnetic chuck 2 is driven to rotate at the end of the excavator arm 1, so that the magnetic material is moved or clamped by cooperation with the thumb clamp 3.

[0040] As shown in Figures 1 to 8 The bottom of the excavator arm 1 is rotationally connected with the second oil cylinder 10, the output end of the second oil cylinder 10 is rotationally connected with the back of the thumb clamp 3, the rotation of the thumb clamp 3 is controlled by the extension and contraction of the second oil cylinder 10 arranged between the excavator arm 1 and the thumb clamp 3, when the electromagnetic chuck 2 is needed to move the magnetic material by magnetic attraction, the second oil cylinder 10 is completely retracted, the thumb clamp 3 is rotated to the lower side of the excavator arm 1 to avoid affecting the adsorption of the electromagnetic chuck 2 to the magnetic material, when the material needs to be clamped for construction, the second oil cylinder 10 is elongated, and the thumb clamp 3 is rotated to the direction of the electromagnetic chuck 2 to complete the clamping.

[0041] The working principle of the utility model is as follows:

[0042] S1, during construction, the electromagnetic chuck 2 can be selected to move the magnetic material by magnetic attraction, or the electromagnetic chuck 2 and the thumb clamp 3 can be used to clamp the material, so that the excavator mechanical arm can change the construction mode at any time to move the material;

[0043] S2, if there are many impurities in the scrap steel, the scrap steel is completely attracted by the electromagnetic chuck 2, and the impurities are left in place, realizing rapid screening of mixed steel, and the remaining scrap steel can be directly used for construction by the clamping structure, avoiding the situation that the remaining impurities need to be replaced by construction equipment, and improving the construction efficiency;

[0044] S3, when the steel bar is loaded, unloaded or moved, it is difficult to tear off, which is not convenient for construction, so that the electromagnetic chuck 2 and the thumb clamp 3 are clamped together, the cutting blade 6 cuts the steel bar and enters the knife groove 5, realizing shearing of the steel bar.

[0045] The above is only used to explain the technical scheme of the utility model, not to limit it, other modifications or equivalent replacements of the technical scheme of the utility model made by those skilled in the art should be covered in the scope of the claims of the utility model.

Claims

1. A multi-functional excavator robotic arm device, comprising an excavator boom (1), characterized in that: One end of the excavator stick (1) is assembled and connected to the excavator boom, and the other end of the excavator stick (1) is rotatably connected to an electromagnetic chuck (2) and a thumb clamp (3). A drive mechanism is provided between the excavator stick (1) and the electromagnetic chuck (2), and between the excavator stick (1) and the thumb clamp (3).

2. The multi-functional excavator robotic arm device according to claim 1, characterized in that: The electromagnetic chuck (2) and the thumb clamp (3) are rotatably connected to the same shaft at the end of the excavator boom (1), and several bucket teeth (4) are fixedly connected to the end of the electromagnetic chuck (2).

3. The multi-functional excavator robotic arm device according to claim 1, characterized in that: The edge of the electromagnetic chuck (2) extends outward to form a rectangular structure.

4. The multi-functional excavator robotic arm device according to claim 1, characterized in that: The electromagnetic chuck (2) is disc-shaped.

5. A multi-functional excavator robotic arm device according to claim 1, characterized in that: The electromagnetic chuck (2) has a cutter groove (5) on one side of its bottom, and a cutting blade (6) is fixedly connected to one side of the thumb clamp (3). The cutter groove (5) and the cutting blade (6) are positioned correspondingly, and both the cutter groove (5) and the cutting blade (6) are located at one end close to the excavator boom (1).

6. The multi-functional excavator robotic arm device according to claim 1, characterized in that: The top of the excavator boom (1) is rotatably connected to a first hydraulic cylinder (7), and both sides of the front end of the excavator boom (1) are rotatably connected to swing arms (8). The top of the connecting mechanism of the electromagnetic chuck (2) is rotatably connected to a connecting rod (9). The output end of the first oil cylinder (7), one end of the rocker arm (8) and one end of the connecting rod (9) are rotatably connected to the same rotating shaft.

7. The multi-functional excavator robotic arm device according to claim 1, characterized in that: The bottom of the excavator boom (1) is rotatably connected to a second hydraulic cylinder (10), and the output end of the second hydraulic cylinder (10) is rotatably connected to the back of the thumb clamp (3).

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