Excavator forearm grillage assembly

Abstract

The utility model discloses a forearm plate frame assembly of an excavator, which belongs to the technical field of excavators and comprises an arm frame, a reserved groove is arranged on the arm frame, and guide blocks are fixedly connected to two sides of the inner wall of the reserved groove. According to the excavator, the telescopic block and the hydraulic motor are arranged, the hydraulic cylinder can push the telescopic block to move in the direction of the guide block when in use, so that the excavator bucket can extend the excavation range, and the telescopic block can move at a high speed as required when the excavator is used; the obliquely arranged heat-conducting fins can play a role in uniform heat dissipation, the service life of the small arm plate frame assembly of the excavator is prolonged, meanwhile, when the hydraulic motor is started, the gear can rotate, the arm frame is driven to rotate, an excavator bucket of the excavator can rotate according to needs, and the working efficiency of the excavator is improved. Therefore, the excavator can extend the excavation range and rotate the excavator bucket according to excavation requirements, and the excavator can have higher excavation adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to an excavator arm plate frame assembly. Background Art

[0002] An excavator is a heavy-duty engineering machinery used in earthwork and construction projects. It is usually used for digging, loading, transporting and leveling soil, rocks and other materials. An excavator can quickly and effectively carry out earthwork and construction projects, greatly improving work efficiency. It can quickly complete a large amount of earthwork by digging, loading and transporting materials, reducing manpower and time costs. At the same time, an excavator can flexibly perform a variety of tasks, such as digging, leveling, dumping, etc., and can handle various types of soil, rocks and other materials. It can reach narrow or difficult-to-reach places, expanding the scope and possibilities of construction operations. The excavator arm frame assembly is one of the important components of the excavator structure. It is a transverse frame that carries and supports the working device and is connected to the excavator body. Most of the excavator arm frame assemblies in the prior art are fixed in length and cannot be extended or retracted along their extension direction, resulting in a limited excavation range of the excavator and a decrease in its adaptability. Utility Model Content

[0003] The technical problem to be solved by the utility model is that most of the arm frame assemblies of the excavators in the prior art are of fixed length and cannot be extended or retracted along their extension direction, resulting in a limited excavation range of the excavator and reduced adaptability.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an excavator arm plate frame assembly, including an arm, a reserved groove is arranged on the arm, and guide blocks are fixedly connected to both sides of the inner wall of the reserved groove, and the guide blocks on both sides are symmetrically arranged, and heat dissipation grooves are arranged near the guide blocks of the arm, and a plurality of heat conducting plates are fixedly connected to the inside of the heat dissipation grooves, a fixed plate is fixedly connected to the top surface of the arm, and slide grooves are symmetrically arranged on the fixed plate, and a first mounting frame is slidably connected to the fixed plate, and the sliders at the bottom of the first mounting frame are respectively arranged in the slide grooves.

[0005] Through the above technical solution, the guide block can limit the moving direction of the telescopic block to prevent it from deviating from the expected trajectory. At the same time, the guide block can stabilize the movement of the telescopic rod to prevent it from generating unnecessary vibrations during movement. The first mounting frame is used to install the hydraulic cylinder of the excavator bucket so that the hydraulic cylinder can move with the movement of the bucket.

[0006] The utility model is further configured that a plurality of the heat conducting plates are provided with a plurality of heat dissipation openings, a plurality of the heat conducting plates are arranged in an italic shape, and the heat conducting plates on both sides are arranged symmetrically.

[0007] Through the above technical solution, when the excavator is in use, the telescopic block may move at a faster speed as needed, and the heat conductive plate arranged in an oblique shape can play a role in uniform heat dissipation. At the same time, the heat dissipation port can make the airflow movement smoother, so that the airflow can quickly take away the heat, thereby extending the service life of the excavator arm plate frame assembly.

[0008] The utility model is further configured that a telescopic block is arranged inside the reserved groove, the telescopic block is slidably connected to the guide blocks on both sides, and a first connecting block is fixedly connected to the telescopic block.

[0009] Through the above technical solution, the first connecting block is used to connect the bucket of the excavator, so that the bucket can extend the excavation range and the excavator can have stronger adaptability.

[0010] The utility model is further configured such that a second mounting frame is fixedly connected to the bottom of the arm, a hydraulic cylinder is installed on the second mounting frame, a piston rod of the hydraulic cylinder is fixedly connected to the telescopic block, side plates are fixedly connected to both sides of the arm, and the side plates are fixedly connected to the nearby heat conducting plates.

[0011] Through the above technical solution, the hydraulic cylinder will push the telescopic block to move along the direction of the guide block when in use, so that the hydraulic cylinder provides power for the movement of the excavator bucket.

[0012] The utility model is further configured such that a connecting plate is fixedly connected to a side of the arm away from the first connecting block, an annular groove is provided on a side of the connecting plate away from the arm, a gear ring is fixedly connected to a center position of a side of the connecting plate away from the arm, and a gear is meshedly connected to the gear ring.

[0013] Through the above technical solution, when the gear rotates, it will drive the gear ring to rotate, and drive the boom to rotate, so that the bucket of the excavator can be rotated as needed, further improving the adaptability of the excavator.

[0014] The utility model is further configured such that a protective box is rotatably connected to a side of the connecting plate close to the gear ring, a connecting block of the protective box is arranged in an annular groove, a second connecting block is fixedly connected to a side of the protective box away from the connecting plate, a hydraulic motor is installed inside the protective box, and an output shaft of the hydraulic motor is fixedly connected to the gear.

[0015] Through the above technical solution, the hydraulic motor can be controlled using the hydraulic system of the excavator. When the hydraulic motor is started, it will drive the gears to rotate, thereby providing rotational power for the boom.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model arranges a telescopic block and a hydraulic motor. When in use, the hydraulic cylinder pushes the telescopic block to move in the direction of the guide block, so that the bucket can extend the excavation range. When the excavator is in use, the telescopic block may move at a faster speed as needed. The heat conducting plate arranged in an italic shape can play a role in uniform heat dissipation. At the same time, the heat dissipation port can make the air flow move more smoothly, so that the air flow can quickly take away heat, thereby extending the service life of the excavator arm plate frame assembly. At the same time, when the hydraulic motor is started, it drives the gear to rotate. When the gear rotates, it drives the gear ring to rotate, and drives the arm frame to rotate, so that the bucket of the excavator can rotate as needed, so that the excavator can extend the excavation range and rotate the bucket according to the excavation requirements, so that the excavator can have a stronger excavation adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the first perspective of the present utility model;

[0019] Figure 2 It is a schematic diagram of the second viewing angle of the present utility model;

[0020] Figure 3 It is a schematic diagram of the first partial structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the second partial structure of the utility model.

[0022] In the figure: 1. arm; 2. reserved groove; 3. guide block; 4. heat dissipation groove; 5. heat conductive plate; 6. heat dissipation port; 7. telescopic block; 8. first connecting block; 9. fixed plate; 10. slide groove; 11. first mounting bracket; 12. second mounting bracket; 13. hydraulic cylinder; 14. side plate; 15. connecting plate; 16. annular groove; 17. gear ring; 18. gear; 19. hydraulic motor; 20. protective box; 21. second connecting block. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] See also Figures 1 to 4, an excavator arm plate frame assembly, including an arm frame 1, a reserved groove 2 is provided on the arm frame 1, guide blocks 3 are fixedly connected to both sides of the inner wall of the reserved groove 2, the guide blocks 3 on both sides are symmetrically arranged, the arm frame 1 is provided with heat dissipation grooves 4 near the guide blocks 3, a plurality of heat conducting plates 5 are fixedly connected to the inside of the heat dissipation grooves 4, a fixing plate 9 is fixedly connected to the top surface of the arm frame 1, and slide grooves 10 are symmetrically arranged on the fixing plate 9, a first mounting frame 11 is slidably connected to the fixing plate 9, and the sliders at the bottom of the first mounting frame 11 are respectively arranged in the slide grooves 10;

[0025] A connecting plate 15 is fixedly connected to the side of the arm 1 away from the first connecting block 8, an annular groove 16 is arranged on the side of the connecting plate 15 away from the arm 1, a gear ring 17 is fixedly connected to the center position of the side of the connecting plate 15 away from the arm 1, a gear 18 is meshedly connected inside the gear ring 17, a protection box 20 is rotatably connected to the side of the connecting plate 15 close to the gear ring 17, a connecting block of the protection box 20 is arranged in the annular groove 16, a second connecting block 21 is fixedly connected to the side of the protection box 20 away from the connecting plate 15, a hydraulic motor 19 is installed inside the protection box 20, and an output shaft of the hydraulic motor 19 is fixedly connected to the gear 18;

[0026] A second mounting frame 12 is fixedly connected to the bottom of the arm 1, and a hydraulic cylinder 13 is installed on the second mounting frame 12. The piston rod of the hydraulic cylinder 13 is fixedly connected to the telescopic block 7. Side plates 14 are fixedly connected to both sides of the arm 1, and the side plates 14 are fixedly connected to the nearby heat conducting plates 5. Several heat dissipation ports 6 are opened on several heat conducting plates 5, and several heat conducting plates 5 are italicized. The heat conducting plates 5 on both sides are symmetrically arranged, and a telescopic block 7 is arranged inside the reserved groove 2. The telescopic block 7 is slidably connected to the guide blocks 3 on both sides, and the telescopic block 7 is fixedly connected to the first connecting block 8.

[0027] When the utility model is in use, firstly, the bucket of the excavator is installed at the first connecting block 8, and the hydraulic cylinder of the excavator bucket is installed at the first mounting frame 11, and then the arm of the excavator is connected at the second connecting block 21. When the excavator is in use, starting the hydraulic cylinder 13 will push the telescopic block 7 to move along the direction of the guide block 7, so that the bucket can extend the excavation range. When the excavator is in use, the telescopic block 3 may move at a faster speed as needed. The heat conducting plate 5 arranged in an italic shape can play a role in uniform heat dissipation. At the same time, the heat dissipation port 6 can make the air flow move more smoothly, so that the air flow can quickly take away the heat, and the service life of the excavator arm plate frame assembly is extended. At the same time, when the hydraulic motor 19 is started, the gear 18 will be rotated, and when the gear 18 rotates, it will drive the gear ring 17 to rotate, and drive the arm frame 1 to rotate, so that the bucket of the excavator can be rotated as needed, so that the excavator can extend the excavation range and rotate the bucket according to the excavation requirements, so that the excavator can have a stronger excavation adaptability.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An excavator arm frame assembly, comprising an arm frame (1), characterized in that: The arm support (1) is provided with a reserved groove (2), and both sides of the inner wall of the reserved groove (2) are fixedly connected with guide blocks (3), and the guide blocks (3) on both sides are symmetrically arranged. The arm support (1) is provided with a heat dissipation groove (4) at a position close to the guide block (3), and a plurality of heat conducting plates (5) are fixedly connected inside the heat dissipation groove (4). A fixing plate (9) is fixedly connected to the top surface of the arm support (1), and sliding grooves (10) are symmetrically arranged on the fixing plate (9). A first mounting frame (11) is slidably connected to the fixing plate (9), and the sliders at the bottom of the first mounting frame (11) are respectively arranged in the sliding grooves (10).

2. The excavator arm plate frame assembly according to claim 1, characterized in that: A plurality of heat-dissipating openings (6) are provided on the plurality of heat-conducting sheets (5), and the plurality of heat-conducting sheets (5) are all arranged in an italic shape, and the heat-conducting sheets (5) on both sides are arranged symmetrically.

3. The excavator arm plate frame assembly according to claim 1, characterized in that: A telescopic block (7) is arranged inside the reserved groove (2), the telescopic block (7) is slidably connected to the guide blocks (3) on both sides, and a first connecting block (8) is fixedly connected to the telescopic block (7).

4. The excavator arm plate frame assembly according to claim 1, characterized in that: The bottom of the arm (1) is fixedly connected to a second mounting frame (12), a hydraulic cylinder (13) is mounted on the second mounting frame (12), a piston rod of the hydraulic cylinder (13) is fixedly connected to a telescopic block (7), and both sides of the arm (1) are fixedly connected to side plates (14), and the side plates (14) are fixedly connected to adjacent heat conducting plates (5).

5. The excavator arm plate frame assembly according to claim 1, characterized in that: A connecting plate (15) is fixedly connected to the side of the arm (1) away from the first connecting block (8), an annular groove (16) is provided on the side of the connecting plate (15) away from the arm (1), a gear ring (17) is fixedly connected to the center position of the side of the connecting plate (15) away from the arm (1), and a gear (18) is meshedly connected inside the gear ring (17).

6. The excavator arm plate frame assembly according to claim 5, characterized in that: A protective box (20) is rotatably connected to a side of the connecting plate (15) close to the gear ring (17); a connecting block of the protective box (20) is arranged in an annular groove (16); a second connecting block (21) is fixedly connected to a side of the protective box (20) away from the connecting plate (15); a hydraulic motor (19) is installed inside the protective box (20); an output shaft of the hydraulic motor (19) is fixedly connected to the gear (18).

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