Combination transmission device of brush cutter gearbox

Abstract

The utility model relates to the technical field of gear boxes of brush cutters, and discloses a combined transmission device of a gear box of a brush cutter, which comprises a main cavity and an inclined cavity, a main rotating rod is rotatably arranged in the main cavity, an inclined rotating rod is rotatably arranged in the inclined cavity, the main rotating rod and the inclined rotating rod are meshed and linked through a bevel gear, and an umbrella-shaped cavity is connected below the main cavity. A rotating disc is connected to the lower portion of the main rotating rod, the rotating disc and the umbrella-shaped cavity are arranged in a sliding mode, a rotating brush cutting structure is connected to the lower portion of the rotating disc, a protective shell is connected to the lower portion of the rotating brush cutting structure in a threaded mode, and a rotation limiting structure which is inserted into the main cavity and clamps the bevel gear is arranged on one side of the main cavity. The bottom protection device has the advantages that the bottom protection effect is good, and the rotation stopping effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of brush cutter gear boxes, in particular to a brush cutter gear box combined transmission device. Background Art

[0002] The gearbox of a brush cutter is a device used to transmit power and adjust the speed. It usually contains a series of gears and shafts to transmit power from the engine to the cutter or other working parts. They are usually designed to be durable and able to withstand high-speed rotation and heavy-load working environments.

[0003] The current brush cutter gearbox has some problems during the use of the machine. First, bottom wear is a common phenomenon, which may be caused by long-term friction and heavy load, which will affect the stability and life of the gearbox. Secondly, it is also common for bolts to get rusted in mud, especially in complex operating environments and high humidity. Failure to clean and maintain them in time may cause more serious damage. In addition, the lack of certain limiting structures inside the gearbox may cause the gears or other components to fall off or misalign, thereby affecting the normal operation of the machine. Finally, the lack of internal limiting structures also increases the risk of accidentally touching the switch, which may cause safety accidents and cause harm to the operator if operated incorrectly. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a brush cutter gear box combined transmission device which has good bottom protection effect and rotation cut-off function.

[0005] In order to solve the above technical problems, the technical solution proposed by the utility model is: a brush cutter gear box combined transmission device, including a main cavity and an oblique cavity, a main rotating rod is rotatably provided in the main cavity, an oblique rotating rod is rotatably provided in the oblique cavity, the main rotating rod and the oblique rotating rod are linked by bevel gear meshing, an umbrella-shaped cavity is connected below the main cavity, a turntable is connected below the main rotating rod, a sliding arrangement is made between the turntable and the umbrella-shaped cavity, a rotary brush cutting structure is connected below the turntable, a protective shell is threadedly provided below the rotary brush cutting structure, and a rotation limiting structure is provided on one side of the main cavity that is inserted therein and clamps the bevel gear.

[0006] Furthermore, the main rotating rod and the top of the main cavity are rotatably connected via a bearing 1, a bearing 2 is connected between the main rotating rod and the main cavity, and a bearing 3 is connected between the oblique rotating rod and the oblique cavity.

[0007] Furthermore, the main rotating rod is connected to a bevel gear 1, and the oblique rotating rod is connected to a bevel gear 2 meshing with the bevel gear 1.

[0008] Furthermore, a circular groove is provided in the umbrella-shaped cavity, and a circular ring matching the circular groove is connected around the turntable.

[0009] Furthermore, the rotary brush cutting structure includes a docking column connected to the bottom of the turntable, the docking column is connected with side edges all around, a brush cutting disc is inserted into the docking column, a top ring is inserted into the docking column and is limited by the side edges, a four-claw support is fixed by screws under the docking column, the four-claw support presses the top ring tightly, a thread is provided at the lower end of the top ring, and the protective shell is threadedly connected to the bottom of the top ring.

[0010] Furthermore, the rotation limiting structure includes an insert plate that is slidably inserted into the main cavity, the insert plate can be inserted into the tooth gap of the bevel gear, an insert button is connected to the outer side of the insert plate, an outer plate is connected to the insert plate, and a bolt that is screwed into the main cavity is connected to the outer plate.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] Good bottom protection effect: The bottom of the brush cutter gearbox combined transmission device is equipped with an umbrella-shaped cavity, which is connected to a turntable and a threaded connection of a protective shell. This design effectively protects the internal mechanical components from external collisions or foreign objects, and improves the stability and service life of the device.

[0013] It has a rotation cut-off function: when not in use, the plug plate can be inserted into the main cavity and the plug plate can be inserted into the tooth gap of bevel gear 1, preventing the main rotating rod from rotating, thereby achieving the rotation cut-off function. This design allows the device to stop rotating safely when not in use, avoiding accidental injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional Figure 1 ;

[0015] Figure 2 The utility model is a three-dimensional Figure 2 ;

[0016] Figure 3 It is the front view of the utility model;

[0017] Figure 4 It is a cross-sectional view of the utility model;

[0018] Figure 5 It is a structural diagram inside the protective shell of the utility model;

[0019] Figure 6 It is a schematic diagram of the A area of ​​the utility model.

[0020] As shown in the figure: 1. Main cavity; 2. Oblique cavity; 3. Main rotating rod; 4. Oblique rotating rod; 5. Umbrella-shaped cavity; 6. Turntable; 7. Protective shell; 8. Bearing 1; 9. Bearing 2; 10. Bearing 3; 11. Bevel gear 1; 12. Bevel gear 2; 13. Circular slide; 14. Circular ring; 15. Docking column; 16. Side edge; 17. Brush cutter disc; 18. Top ring; 19. Four-claw support; 20. Insert plate; 21. Plug and unplug button; 22. Outer plate. DETAILED DESCRIPTION

[0021] The brush cutter gearbox combined transmission device with bottom protection effect and rotation cut-off effect brings advantages such as improved safety, stable mechanical performance, more convenient operation, improved efficiency and cost-effectiveness, which can effectively reduce the probability of accidents, extend service life, improve work efficiency, and reduce maintenance costs in the long run. The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Combined with Figure 4 The main rotating rod 3 and the top of the main cavity 1 are rotatably connected via a bearing 8, a bearing 2 9 is connected between the main rotating rod 3 and the main cavity 1, a bearing 3 10 is connected between the oblique rotating rod 4 and the oblique cavity 2, a bevel gear 11 is connected to the main rotating rod 3, and a bevel gear 2 12 meshing with the bevel gear 11 is connected to the oblique rotating rod 4.

[0023] Combined with Figure 5 An umbrella-shaped cavity 5 is connected to the bottom of the main cavity 1, and a circular groove 13 is provided in the umbrella-shaped cavity 5. A circular ring 14 matching the circular groove 13 is connected to the circumference of the turntable 6. A turntable 6 is connected to the bottom of the main rotating rod 3, and a sliding arrangement is arranged between the turntable 6 and the umbrella-shaped cavity 5. A rotary brush cutting structure is connected to the bottom of the turntable 6, and the rotary brush cutting structure includes a docking column 15 connected to the bottom of the turntable 6, and side edges 16 are connected to the docking column 15 around it. A brush cutting disc 17 is inserted into the docking column 15, and a top ring 18 is inserted into the docking column 15 and is limited by the side edges 16. A four-claw support 19 is fixed to the bottom of the docking column 15 by screws, and the four-claw support 19 presses against the top ring 18. A thread is provided at the lower end of the top ring 18, and the protective shell 7 is threadedly connected to the bottom of the top ring 18.

[0024] Combined with Figure 6 A limiting rotation structure is provided on one side of the main cavity 1, which is inserted into the main cavity 1 and clamps the bevel gear. The limiting rotation structure includes a plug plate 20 that is slidably inserted into the main cavity 1. The plug plate 20 can be inserted into the tooth gap of the bevel gear 11. A plug-in button 21 is connected to the outer side of the plug plate 20. An outer plate 22 is connected to the plug plate 20. A bolt that is screwed into the main cavity 1 is connected to the outer plate 22.

[0025] Specific implementation of the utility model: When the utility model is in use, the oblique rotating rod 4 in the oblique cavity 2 is connected to the driving device, and the oblique rotating rod 4 drives the bevel gear 2 12 to mesh with the bevel gear 1 11, so that the main rotating rod 3 in the main cavity 1 rotates, and the bearing 1 8, the bearing 2 9, and the bearing 3 10 make the main rotating rod 3 and the oblique rotating rod 4 rotate stably. During the rotation process, the ring 14 slides in the circular slide groove 13 to assist the rotation, and the brush cutter disc 17 is used to rotate quickly. When it is necessary to replace the brush cutter disc 17, the protective shell 7 is screwed off, the screws on the four-claw support 19 are removed, the four-claw support 19 is removed, and then the top ring 18 is removed from the side edge 16 on the docking column 15, and then the old brush cutter disc 17 is removed and replaced with a new brush cutter disc 17, and then the above components are reset. When not in use, pinch the plug-in button 21 to insert the plug-in plate 20 into the main cavity 1, so that the plug-in plate 20 is inserted into the tooth gap of the bevel gear 11, and then the outer plate 22 and the main cavity 1 are connected together using bolts.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A brush cutter gearbox combined transmission device, comprising a main cavity (1) and an oblique cavity (2), characterized in that: A main rotating rod (3) is rotatably provided in the main cavity (1), and an oblique rotating rod (4) is rotatably provided in the oblique cavity (2). The main rotating rod (3) and the oblique rotating rod (4) are linked by bevel gear meshing. An umbrella-shaped cavity (5) is connected below the main cavity (1), and a rotating disk (6) is connected below the main rotating rod (3). The rotating disk (6) and the umbrella-shaped cavity (5) are slidably arranged. A rotary brush cutting structure is connected below the rotating disk (6), and a protective shell (7) is threadedly connected below the rotary brush cutting structure. A rotation limiting structure is inserted into one side of the main cavity (1) and clamps the bevel gear.

2. A brush cutter gearbox combined transmission device according to claim 1, characterized in that: The main rotating rod (3) and the top of the main cavity (1) are rotatably connected via a bearing 1 (8); a bearing 2 (9) is provided between the main rotating rod (3) and the main cavity (1); and a bearing 3 (10) is provided between the oblique rotating rod (4) and the oblique cavity (2).

3. A brush cutter gearbox combined transmission device according to claim 1, characterized in that: The main rotating rod (3) is connected to a bevel gear 1 (11), and the oblique rotating rod (4) is connected to a bevel gear 2 (12) meshing with the bevel gear 1 (11).

4. A brush cutter gearbox combined transmission device according to claim 1, characterized in that: A circular slide groove (13) is provided in the umbrella-shaped cavity (5), and a circular ring (14) adapted to the circular slide groove (13) is connected to the circumference of the rotating disk (6).

5. The brush cutter gearbox combined transmission device according to claim 1, characterized in that: The rotary brush cutting structure comprises a docking column (15) connected to the bottom of the rotating disk (6), the docking column (15) is connected with side edges (16) on all sides, a brush cutting disc (17) is inserted into the docking column (15), a top ring (18) is inserted into the docking column (15) and is limited by the side edges (16), a four-claw support (19) is fixed by screws under the docking column (15), the four-claw support (19) presses against the top ring (18), a thread is provided at the lower end of the top ring (18), and the protective shell (7) is threadedly connected to the bottom of the top ring (18).

6. A brush cutter gearbox combined transmission device according to claim 3, characterized in that: The rotation limiting structure comprises an insert plate (20) which is slidably inserted into the main cavity (1), the insert plate (20) can be inserted into the tooth gap of the bevel gear (11), an insert button (21) is connected to the outer side of the insert plate (20), an outer plate (22) is connected to the insert plate (20), and a bolt which is screwed into the main cavity (1) is connected to the outer plate (22).

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