Excavator movable arm cutting and positioning device

Abstract

The utility model discloses an excavator boom cutting and positioning device, which relates to the technical field of excavator equipment and comprises a base, a positioning component, a fixing component, a supporting component and cutting components, the positioning component is mounted on the left side of the base, the fixing component and the supporting component are arranged at the top of the base, and the cutting components are movably mounted on the front side and the rear side of the base. According to the scheme, the positioning pin and the lifting seat are additionally arranged, the movable arm can be rapidly and stably positioned before the movable arm is fixed through the device, then the tail of the movable arm is driven by the lifting seat to ascend and descend, and the movable arm can be fixed through the lifting seat. The movable arm can be integrally adjusted to the optimal angle where the cutter can conduct effective cutting, the angle range needing to be cut is enlarged, cutting operation is convenient, the cutting efficiency of the device is improved, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of excavator equipment technology, specifically to an excavator boom cutting and positioning device. Background Technology

[0002] The excavator boom is a crucial component of the excavator's working device. It typically has a box-shaped structure with internal reinforcing ribs, providing high strength and rigidity to withstand the various complex loads during excavation operations. It connects the excavator body and the boom, and its main function is to drive the boom and bucket via a hydraulic system to lift, lower, and swing.

[0003] Because excavator booms are large and rigid, they need to be fixed in multiple positions before cutting. However, existing cutting devices are difficult to position accurately before fixing the boom, and the angle of the boom after fixing is not easy to adjust. When cutting the boom at a certain angle, the position of the cutting device needs to be manually adjusted to make the boom and the cutting device form an angle. The operation is cumbersome, inefficient, and labor-intensive. Therefore, to solve the above problems, an excavator boom cutting positioning device is proposed. Utility Model Content

[0004] To solve the above-mentioned technical problems, an excavator boom cutting and positioning device is provided. This technical solution solves the problem mentioned in the background art that the existing excavator boom cutting device is difficult to accurately position before fixing the boom, which leads to the inability to accurately adjust the cutting angle.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A cutting and positioning device for an excavator boom includes a base, a positioning component, a fixing component, a support component, and a cutting component. The positioning component is installed on the left side of the base, the fixing component and the support component are disposed on the top of the base, and the cutting component is movably installed on the front and rear sides of the base.

[0007] The positioning component includes a positioning seat, which is fixedly connected to the left side of the base. A fixed seat is fixedly connected to the top of the positioning seat. A connecting groove is opened on the top of the fixed seat. A bidirectional threaded rod is rotatably connected in the connecting groove. Two symmetrically distributed sliding blocks are threadedly connected to the outer surface of the bidirectional threaded rod. A positioning block is fixedly connected to the top of the sliding block. A positioning pin is threadedly connected to the opposite side of the two positioning blocks.

[0008] The fixing assembly includes a first middle support and a second middle support symmetrically arranged about the center of the base, and two symmetrically distributed lifting platforms are fixedly connected to the top of each of the first middle support and the second middle support;

[0009] The support assembly includes a tail support base, and a lifting base is fixedly connected to the top of the tail support base.

[0010] Preferably, a drive motor is fixedly installed on one side of the fixed base, and the output end of the drive motor is fixedly connected to one end of the bidirectional threaded rod.

[0011] Preferably, the top of the base is fixedly connected with two symmetrically distributed first dovetail tenons, and the front and rear sides of the base are fixedly connected with second dovetail tenons.

[0012] Preferably, the bottom of the first middle support, the second middle support, and the tail support are provided with dovetail grooves, and the first middle support, the second middle support, and the tail support are all slidably connected to the outer surface of the first dovetail tenon through the dovetail grooves.

[0013] Preferably, the bottom of the first middle support, the second middle support, and the tail support are provided with first fastening bolts on opposite sides for positioning in conjunction with the first dovetail tenon.

[0014] Preferably, a mounting block is fixedly connected to the top of the lifting platform, a hydraulic cylinder is fixedly installed on the outside of the mounting block, and the output end of the hydraulic cylinder passes through the outside of the mounting block and is fixedly connected to a pressure block.

[0015] Preferably, the cutting assembly includes a mounting frame, a lifting drive component is fixedly mounted on the top of the mounting frame, a connecting plate is fixedly connected to the output end of the lifting drive component, a cutting motor is welded to the bottom of the connecting plate, and a cutting blade is fixedly connected to the output end of the cutting motor.

[0016] Preferably, the front inner wall and the rear inner wall of the mounting bracket are both fixedly connected with buckles, and the buckles are slidably connected to the second dovetail tenon.

[0017] Preferably, a second fastening bolt is provided on one side of the buckle, penetrating the inner wall of the mounting bracket, for engaging with the second dovetail tenon to fix the mounting bracket.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model solution, by adding a positioning pin and a lifting seat, can achieve rapid and stable positioning of the boom before the device fixes the boom. Then, the lifting seat drives the tail of the boom to rise and fall, which can adjust the entire boom to the optimal angle for the cutter to make effective cuts. This expands the range of angles that need to be cut, facilitates the cutting operation, improves the cutting efficiency of the device, and reduces labor costs.

[0020] This utility model solution, by setting dovetail tenons on the top and sides of the base, which cooperate with dovetail grooves and buckles, can adjust the position of the fixing component and the support component according to the length of the boom of different specifications; it can also adjust the position of the cutting component according to the cutting position on the boom, thereby improving the flexibility of the device and thus improving the working efficiency of the device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0023] Figure 3 This is a front view of the present invention.

[0024] The numbers on the map are:

[0025] 1. Base; 11. First dovetail tenon; 12. Second dovetail tenon;

[0026] 2. Positioning assembly; 21. Positioning seat; 22. Fixing seat; 23. Connecting groove; 24. Bidirectional threaded rod; 25. Drive motor; 26. Sliding block; 27. Positioning block; 28. Positioning pin;

[0027] 3. Fixing components; 31. First intermediate support; 32. Second intermediate support; 33. Lifting platform; 34. Mounting block; 35. Hydraulic cylinder; 36. Pressure block;

[0028] 4. Support components; 41. Tail support base; 42. Lifting base;

[0029] 5. Cutting assembly; 51. Mounting bracket; 52. Buckle; 53. Lifting drive component; 54. Connecting plate; 55. Cutting motor; 56. Cutting blade;

[0030] 6. First fastening bolt; 7. Second fastening bolt. Detailed Implementation

[0031] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0032] Please see Figures 1 to 3 As shown, an excavator boom cutting and positioning device includes a base 1, a positioning component 2, a fixing component 3, a support component 4, and a cutting component 5. The positioning component 2 is installed on the left side of the base 1, the fixing component 3 and the support component 4 are disposed on the top of the base 1, and the cutting component 5 is movably installed on the front and rear sides of the base 1.

[0033] Specifically, the top of the base 1 is fixedly connected to two symmetrically distributed first dovetail tenons 11, and the front and rear sides of the base 1 are fixedly connected to second dovetail tenons 12. The fixing component 3 includes a first middle support 31 and a second middle support 32 symmetrically arranged about the center of the base 1. The support component 4 includes a tail support 41. The bottoms of the first middle support 31, the second middle support 32, and the tail support 41 are provided with dovetail grooves. The first middle support 31, the second middle support 32, and the tail support 41 are all slidably connected to the outer surface of the first dovetail tenons 11 through the dovetail grooves. The bottoms of the first middle support 31, the second middle support 32, and the tail support 41 are provided with first fastening bolts 6 on opposite sides. According to the length of the boom to be cut, the distance between the tail support 41 and the positioning seat 21 can be adjusted by using the first dovetail tenons 11 and the dovetail grooves. Then, the positions of the first middle support 31, the second middle support 32, and the tail support 41 are fixed by the first fastening bolts 6 to prevent them from sliding during the cutting operation.

[0034] Furthermore, two symmetrically distributed lifting platforms 33 are fixedly connected to the top of both the first and second intermediate support seats 31 and 32. The lifting platforms 33 and lifting seats 42 contain power systems, which are existing technologies, and their principles and specific structures will not be described in detail here. A mounting block 34 is fixedly connected to the top of the lifting platform 33. A hydraulic cylinder 35 is fixedly mounted on the outside of the mounting block 34. The output end of the hydraulic cylinder 35 passes through the outside of the mounting block 34 and is fixedly connected to a pressure block 36. The lifting platforms 33 on the first and second intermediate support seats 31 and 32 are activated sequentially, causing the mounting block 34 to rise and fall until the pressure block 36 aligns with the center of the boom's side wall. Then, the hydraulic cylinder 35 is activated simultaneously, causing the pressure block 36 to firmly press the boom, thus achieving a stable fixation of the boom. A lifting seat 42 is fixedly connected to the top of the tail support seat 41. Activating the lifting seat 42 causes the tail of the boom to rise slowly, allowing the entire boom to be adjusted to the optimal angle for effective cutting by the cutter 56.

[0035] Furthermore, the positioning component 2 includes a positioning seat 21, which is fixedly connected to the left side of the base 1. A fixing seat 22 is fixedly connected to the top of the positioning seat 21. A connecting groove 23 is provided on the top of the fixing seat 22. A bidirectional threaded rod 24 is rotatably connected in the connecting groove 23. A drive motor 25 is fixedly installed on one side of the fixing seat 22. The output end of the drive motor 25 is fixedly connected to one end of the bidirectional threaded rod 24. Two symmetrically distributed sliding blocks 26 are threadedly connected to the outer surface of the bidirectional threaded rod 24. A positioning block 27 is fixedly connected to the top of the sliding block 26. A positioning pin 28 is threadedly connected to the opposite side of each of the two positioning blocks 27. After the tail of the boom is placed smoothly on the lifting seat 42 with the help of the lifting device, the head of the boom is suspended and adjusted to the position where its hole aligns with the positioning pin 28. Then, the drive motor 25 is started to drive the bidirectional threaded rod 24 to rotate, which in turn drives the sliding block 26 to move, causing the positioning block 27 to move in opposite directions until the positioning pin 28 is aligned with the hole and inserted. At this time, the boom can be supported, which makes it convenient for the lifting seat 42 to raise and lower to adjust the boom cutting angle. After the boom cutting angle is determined, the drive motor 25 is started again to make the positioning block 27 firmly clamp the head of the boom.

[0036] Furthermore, the cutting assembly 5 includes a mounting bracket 51. Both the front and rear inner walls of the mounting bracket 51 are fixedly connected to clips 52, which are slidably connected to the second dovetail tenon 12. The clips 52 have dovetail grooves. A second fastening bolt 7 is provided on one side of the clip 52, penetrating the inner wall of the mounting bracket 51, for engaging with the second dovetail tenon 12 to fix the mounting bracket 51. Depending on the cutting position of the boom, the second dovetail tenon 12 and the dovetail groove in the clip 52 can be used to adjust the position of the mounting bracket 51, which is then fixed by the second fastening bolt 7. A lifting drive component 53 is fixedly mounted on the top of the mounting bracket 51. In this embodiment, the lifting drive component 53 is either a pneumatic cylinder or a hydraulic cylinder. A connecting plate 54 is fixedly connected to the output end of the lifting drive component 53, and a cutting motor 55 is welded to the bottom of the connecting plate 54. The lifting drive component 53 may generate a large impact force when starting and stopping. By using the cutting motor 55 in conjunction with the lifting drive component 53, this impact force can be buffered by controlling the rotation speed during start-up and stopping. A cutter 56 is fixedly connected to the output end of the cutting motor 55. When the lifting drive component 53 and the cutting motor 55 are started, the lifting drive component 53 moves the connecting plate 54 downward, which in turn causes the cutting motor 55 to move the cutter 56 downward, allowing the cutter 56 to smoothly cut the fixed boom and achieve a good cutting effect.

[0037] Working Principle: First, connect the device to an external power source to provide electrical energy and ensure normal operation. Next, adjust the distance between the tail support 41 and the positioning seat 21 using the first dovetail tenon 11 according to the length of the boom to be cut. Then, fix the positions of the first middle support 31, the second middle support 32, and the tail support 41 with the first fastening bolt 6 to prevent slippage during the cutting operation. Then, using the lifting device, place the tail of the boom stably on the lifting seat 42, and then suspend the boom head and adjust it until its hole aligns with the positioning pin 28. Next, start the drive motor 25 to drive the bidirectional threaded rod 24 to rotate, which in turn moves the two sliding blocks 26, causing the two positioning blocks 27 to move towards each other until the positioning pin 28 is aligned with the hole and inserted. At this point, the boom is supported, facilitating subsequent adjustment of the boom cutting angle by raising and lowering the lifting seat 42. Finally, remove the lifting device. Based on the position of the boom to be cut, the second dovetail tenon 12 and the dovetail groove in the buckle 52 cooperate to allow the mounting bracket 51 to slide and adjust its position, and then fix it with the second fastening bolt 7. Then, the lifting seat 42 is activated to slowly raise the tail of the boom, adjusting the entire boom to the optimal angle for effective cutting by the cutter 56. The drive motor 25 is activated again to firmly clamp the head of the boom with the positioning block 27. The lifting platform 33 on the first middle support 31 and the second middle support 32 are activated in sequence to drive the mounting block 34 to rise and fall, so that the pressure block 36 is aligned with the side wall of the boom. Then, the hydraulic cylinder 35 is activated at the same time to make the pressure block 36 press the boom tightly, thereby achieving a stable fixation of the boom. Finally, the lifting drive component 53 and the cutting motor 55 are activated respectively. The lifting drive component 53 drives the connecting plate 54 to move downward, which in turn causes the cutting motor 55 to drive the cutter 56 to move downward, so that the cutter 56 can smoothly cut the fixed boom.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting and positioning device for an excavator boom, characterized in that: It includes a base (1), a positioning component (2), a fixing component (3), a support component (4), and a cutting component (5). The positioning component (2) is installed on the left side of the base (1), the fixing component (3) and the support component (4) are located on the top of the base (1), and the cutting component (5) is movably installed on the front and rear sides of the base (1). The positioning component (2) includes a positioning seat (21), which is fixedly connected to the left side of the base (1). A fixing seat (22) is fixedly connected to the top of the positioning seat (21). A connecting groove (23) is provided on the top of the fixing seat (22). A bidirectional threaded rod (24) is rotatably connected in the connecting groove (23). Two symmetrically distributed sliding blocks (26) are threadedly connected to the outer surface of the bidirectional threaded rod (24). A positioning block (27) is fixedly connected to the top of the sliding block (26). A positioning pin (28) is threadedly connected to the opposite side of the two positioning blocks (27). The fixing component (3) includes a first middle support (31) and a second middle support (32) symmetrically arranged about the center of the base (1). The top of the first middle support (31) and the second middle support (32) are both fixedly connected to two symmetrically distributed lifting platforms (33). The support assembly (4) includes a tail support base (41), and a lifting base (42) is fixedly connected to the top of the tail support base (41).

2. The excavator boom cutting and positioning device according to claim 1, characterized in that: A drive motor (25) is fixedly installed on one side of the fixed base (22), and the output end of the drive motor (25) is fixedly connected to one end of the bidirectional threaded rod (24).

3. The excavator boom cutting and positioning device according to claim 1, characterized in that: The top of the base (1) is fixedly connected with two symmetrically distributed first dovetail tenons (11), and the front and rear sides of the base (1) are fixedly connected with second dovetail tenons (12).

4. The excavator boom cutting and positioning device according to claim 3, characterized in that: The bottom of the first middle support (31), the second middle support (32) and the tail support (41) are provided with dovetail grooves. The first middle support (31), the second middle support (32) and the tail support (41) are all slidably connected to the outer surface of the first dovetail tenon (11) through the dovetail grooves.

5. The excavator boom cutting and positioning device according to claim 4, characterized in that: The bottom of the first middle support (31), the second middle support (32) and the tail support (41) are provided with first fastening bolts (6) on opposite sides, which are used to cooperate with the first dovetail tenon (11) for position fixation.

6. The excavator boom cutting and positioning device according to claim 1, characterized in that: The top of the lifting platform (33) is fixedly connected to an installation block (34), and a hydraulic cylinder (35) is fixedly installed on the outside of the installation block (34). The output end of the hydraulic cylinder (35) passes through the outside of the installation block (34) and is fixedly connected to a pressure block (36).

7. The excavator boom cutting and positioning device according to claim 1, characterized in that: The cutting assembly (5) includes a mounting bracket (51), a lifting drive component (53) is fixedly mounted on the top of the mounting bracket (51), a connecting plate (54) is fixedly connected to the output end of the lifting drive component (53), a cutting motor (55) is welded to the bottom of the connecting plate (54), and a cutter (56) is fixedly connected to the output end of the cutting motor (55).

8. The excavator boom cutting and positioning device according to claim 7, characterized in that: The front inner wall and the rear inner wall of the mounting bracket (51) are both fixedly connected with buckles (52), and the buckles (52) are slidably connected to the second dovetail tenon (12).

9. The excavator boom cutting and positioning device according to claim 8, characterized in that: A second fastening bolt (7) is provided on one side of the buckle (52) through the inner wall of the mounting bracket (51) for cooperating with the second dovetail tenon (12) to fix the mounting bracket (51).

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