Connecting disc combination of brush cutter

Abstract

The invention discloses a brush cutter connecting disc combination, and relates to the technical field of connecting discs, in particular to a connecting disc combination for a brush cutter, which comprises a connecting disc main body, a bearing seat combination is mounted at the lower part in the connecting disc main body, screws are mounted on two sides of the bearing seat combination, and a cooling fan is mounted below the bearing seat combination. A driven disc transmission shaft is arranged in the cooling fan in a penetrating mode, a driven disc is integrally and fixedly installed below the driven disc transmission shaft, and a driven disc circular opening is formed in the end face of the driven disc. According to the connecting disc combination for the brush cutter, the bearing seat combination is fixedly installed at the rear end of the connecting disc body through screws to form a cavity, lubricating grease is injected into the cavity, and the problem that a transmission shaft spline and a driven disc spline hole are prone to abrasion is solved; and meanwhile, a high-speed rotating cooling fan is arranged, and cooling air sequentially flows from the opening of the driven disc, the cooling fan and the strip-shaped opening of the connecting disc body to dissipate heat of the connecting disc body.

Description

Technical Field

[0001] The invention relates to the technical field of brush cutters, in particular to a brush cutter connection plate assembly. Background Art

[0002] Brush cutters are divided into electric and internal combustion engine power according to the power, and internal combustion engine power is divided into two-stroke and four-stroke gasoline engines; according to the transmission method, they are divided into flexible shaft transmission and straight rod transmission; according to the engine's fuel supply method, they are divided into float type and pump membrane type; there are two types of working heads of brush cutters: blades and nylon heads. Use blades when the working environment is good and there are no stones or other debris. Otherwise, it is safer to use nylon heads.

[0003] The Chinese utility model patent document with the authorization announcement number CN218897580U discloses a connecting disc for a brush cutter, including a front half connecting disc body, a first rear half connecting disc body and a second rear half connecting disc body, a clamping sleeve is installed at the front end of the front half connecting disc body, a rubber shock-absorbing pad is arranged between the front half connecting disc body and the clamping sleeve, a first passive disc is installed at the tail end of the first rear half connecting disc body, a second passive disc is installed at the tail end of the second rear half connecting disc body, and inner holes are arranged inside the first passive disc and the second passive disc; a support sleeve, a first passive disc retaining ring, a first bearing and a first bearing retaining ring are installed inside the first rear half connecting disc body in sequence, the front end of the first passive disc passes through the support sleeve, the first bearing and the first bearing retaining ring and is fixed by the first passive disc retaining ring, when the working intensity is low, the first rear half connecting disc body can be selected, and the use cost is relatively low under the condition of meeting the use requirements. When the working environment is relatively harsh and the working intensity is high, the second rear half connecting disc body is selected.

[0004] The existing connecting disc assembly of the brush cutter is prone to wear of the transmission shaft spline and the passive disc spline hole, and the sliding contact between the clutch friction plate and the passive disc generates high heat, which causes damage to the clutch friction plate and the passive disc as well as bearings inside the connecting disc body. Therefore, we propose a connecting disc assembly for a brush cutter. Summary of the invention

[0005] In order to solve the above problems, the object of the present invention is to provide a brush cutter connecting plate assembly, including a connecting plate body, a bearing seat assembly, a cooling fan, a passive plate, a passive plate transmission shaft, a rubber shock-absorbing sleeve, a clamping sleeve, and an oil seal, characterized in that: a bearing seat assembly is installed at the lower part of the interior of the connecting plate body, screws are installed on both sides of the bearing seat assembly, a cooling fan is installed at the lower part of the bearing seat assembly, a passive plate transmission shaft is penetrated inside the cooling fan, a passive plate is fixedly installed at the lower part of the passive plate transmission shaft in an integrated manner, a passive plate circular opening is provided on the end face of the passive plate, a connecting plate body strip opening is provided on the inner wall of the connecting plate body, and a passive plate internal spline is provided inside the passive plate transmission shaft; the rubber shock-absorbing sleeve is installed at the upper part of the interior of the connecting plate body, a clamping sleeve is installed inside the rubber shock-absorbing sleeve, an oil seal is installed at the lower part of the clamping sleeve, and a chamber is provided between the oil seal and the bearing seat assembly.

[0006] Optionally, the bearing seat assembly is bolted to the connecting plate body by screws, and the shape and size of a part of the bearing seat assembly match those of the interior of the connecting plate body.

[0007] Optionally, the strip-shaped openings of the connection disk body are evenly distributed along the outer surface of the connection disk body.

[0008] Optionally, grease is injected into the interior of the chamber.

[0009] Optionally, the cooling fan is fixedly connected to the passive disk transmission shaft, and the cooling fan is rotated inside the connecting disk body through the passive disk transmission shaft.

[0010] Optionally, the bearing seat assembly is further provided with: a passive disk retaining ring, which is installed inside the bearing seat assembly, a second bearing is installed below the passive disk retaining ring, a first bearing is installed below the second bearing, and a bearing retaining ring is installed below the first bearing.

[0011] Optionally, the passive disk transmission shaft passes through the bearing retaining ring, the first bearing, the second bearing and the passive disk retaining ring in sequence, and the passive disk transmission shaft is movably connected to the bearing seat assembly through the first bearing and the second bearing.

[0012] Optionally, the clamping sleeve is further provided with: a transmission shaft assembly, which is passed through the interior of the clamping sleeve, and the transmission shaft assembly is connected with the passive disk transmission shaft key through the internal spline of the passive disk.

[0013] Optionally, the connecting disc body is further provided with: a clutch, which is installed below the connecting disc body, and an engine is installed below the clutch.

[0014] Optionally, the connecting disc body is threadedly connected to the engine, and the clutch is located inside the passive disc, and the friction plate of the clutch is tightly fitted to the passive disc.

[0015] The present invention provides a connecting disc assembly for a brush cutter, which has the following beneficial effects: the connecting disc assembly for the brush cutter is provided with a bearing seat assembly which is fixedly installed at the rear end of a connecting disc body by screws to form a chamber, and grease is injected into the chamber, aiming to solve the problem of easy wear of the transmission shaft spline and the passive disc spline hole; at the same time, a high-speed rotating cooling fan is provided, and cooling wind flows from the passive disc opening, the cooling fan, and the strip opening of the connecting disc body in sequence, so as to dissipate heat to the connecting disc body and improve the bearing life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the connecting disk body of the present invention; Figure 3 It is a schematic diagram of the cooling fan structure of the present invention.

[0017] The following are the descriptions of the reference numerals: 1. Connecting disc body; 2. Drive shaft assembly; 3. Clutch; 4. Engine; 5. Rubber shock-absorbing sleeve; 6. Clamping sleeve; 7. Oil seal; 8. Chamber; 9. Passive disc retaining ring; 10. Spline in passive disc; 11. First bearing; 12. Bearing retaining ring; 13. Second bearing; 14. Cooling fan; 15. Passive disc; 16. Circular opening of passive disc; 17. Strip opening of connecting disc body; 18. Screw; 19. Bearing seat assembly; 20. Passive disc drive shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] This embodiment refers to Figure 1 and Figure 3 A connecting plate assembly for a brush cutter includes a connecting plate body 1, a bearing seat assembly 19 is installed at the lower part of the connecting plate body 1, and screws 18 are installed on both sides of the bearing seat assembly 19; the bearing seat assembly 19 is bolted to the connecting plate body 1 through the screws 18, and the shape and size of the bearing seat assembly 19 are partially consistent with the shape and size of the inside of the connecting plate body 1, a cooling fan 14 is installed below the bearing seat assembly 19, and a passive disk transmission shaft 20 is penetrated inside the cooling fan 14; the cooling fan 14 is fixedly connected to the passive disk transmission shaft 20, and the cooling fan 14 is realized in The internal rotation of the connecting disk body 1, the passive disk 15 is integrally fixedly installed below the passive disk transmission shaft 20, the end surface of the passive disk 15 is provided with a passive disk circular opening 16, and the inner wall of the connecting disk body 1 is provided with a connecting disk body strip opening 17; the connecting disk body strip opening 17 is evenly distributed along the outer surface of the connecting disk body 1; by providing a high-speed rotating cooling fan 14, the cooling wind flows from the passive disk opening, the cooling fan 14, and the connecting disk body strip opening 17 in sequence, the connecting disk body 1 is cooled, and the bearing life is improved. The passive disk transmission shaft 20 is provided with a passive disk inner spline 10; The passive disk retaining ring 9 is installed inside the bearing seat assembly 19, the second bearing 13 is installed below the passive disk retaining ring 9, the first bearing 11 is installed below the second bearing 13, and the bearing retaining ring 12 is installed below the first bearing 11; the passive disk transmission shaft 20 passes through the bearing retaining ring 12, the first bearing 11, the second bearing 13 and the passive disk retaining ring 9 in sequence, and the passive disk transmission shaft 20 is movably connected with the bearing seat assembly 19 through the first bearing 11 and the second bearing 13; the arrangement of the passive disk retaining ring 9 and the bearing retaining ring 12 effectively prevents the grease from leaking through the bearing; The clutch 3 is installed below the connecting disc body 1, and the engine 4 is installed below the clutch 3; the connecting disc body 1 is threadedly connected to the engine 4, and the clutch 3 is located inside the passive disc 15, and the friction plate of the clutch 3 is tightly fitted with the passive disc 15.

[0022] This embodiment refers to Figure 1 and Figure 2A connecting plate assembly for a brush cutter comprises a rubber shock-absorbing sleeve 5, which is installed on the upper part of the interior of a connecting plate body 1, and a clamping sleeve 6 is installed inside the rubber shock-absorbing sleeve 5; a transmission shaft assembly 2 is inserted into the interior of the clamping sleeve 6, and the transmission shaft assembly 2 is key-connected with a passive disk transmission shaft 20 through a spline 10 in a passive disk, an oil seal 7 is installed below the clamping sleeve 6, and a chamber 8 is arranged between the oil seal 7 and a bearing seat assembly 19; grease is injected into the interior of the chamber 8; a bearing seat assembly 19 is fixedly installed at the rear end of the connecting plate body by screws 18 to form a chamber 8, and grease is injected into the chamber 8, aiming to solve the problem that the transmission shaft spline and the passive disk spline hole are easy to wear, and the setting of the oil seal 7 forms a closed space inside to prevent the grease from entering the rubber shock-absorbing sleeve 5 and the clamping sleeve 6 and leaking.

[0023] In summary, when the connecting disc assembly for a brush cutter is used, first, the engine 4 works to drive the passive disc 15 through the dry clutch friction plate, and the passive disc 15 drives the passive disc drive shaft 20 to rotate through the first bearing 11 and the second bearing 13, and the rotating passive disc drive shaft 20 drives the drive shaft assembly 2 to rotate through the spline 10 in the passive disc, so as to output and transmit torque by relying on the drive shaft assembly 2, and then the passive disc drive shaft 20 rotates while driving the cooling fan 14 to rotate, and the cooling fan 14 rotates to guide the gas from the passive disc 15 through the circular opening 16 of the passive disc to the strip opening 17 of the connecting disc body and then discharged to the outside of the connecting disc body 1, so as to take away the heat generated by the friction between the clutch 3 and the passive disc 15, play a role of fanning heat, and prevent the heat from affecting the clutch 3 and the passive disc 15 and the bearings inside the connecting disc body 1, and then inject grease into the chamber 8 to solve the problem that the drive shaft spline and the passive disc spline hole are easy to wear, and the setting of the oil seal 7 makes the chamber 8 form a sealed environment to prevent grease leakage.

[0024] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A brush cutter connecting plate assembly, comprising a connecting plate body (1), a bearing seat assembly (19), a cooling fan (14), a passive plate (15), a passive plate transmission shaft (20), a rubber shock absorbing sleeve (5), a clamping sleeve (6), and an oil seal (7), characterized in that: A bearing seat assembly (19) is installed at the lower part of the interior of the connecting disk body (1), screws (18) are installed on both sides of the bearing seat assembly (19), a cooling fan (14) is installed at the lower part of the bearing seat assembly (19), a passive disk transmission shaft (20) is passed through the interior of the cooling fan (14), a passive disk (15) is integrally fixedly installed at the lower part of the passive disk transmission shaft (20), a passive disk circular opening (16) is provided at the end surface of the passive disk (15), a connecting disk body strip opening (17) is provided on the inner wall of the connecting disk body (1), and a passive disk internal spline (10) is provided inside the passive disk transmission shaft (20); the rubber shock-absorbing sleeve (5) is installed at the upper part of the interior of the connecting disk body (1), a clamping sleeve (6) is installed inside the rubber shock-absorbing sleeve (5), an oil seal (7) is installed at the lower part of the clamping sleeve (6), and a chamber (8) is provided between the oil seal (7) and the bearing seat assembly (19).

2. The brush cutter connection plate assembly according to claim 1, characterized in that: The bearing seat assembly (19) is bolted to the connecting plate body (1) via screws (18); the shape and size of a part of the bearing seat assembly (19) match those of the interior of the connecting plate body (1).

3. The brush cutter connection plate assembly according to claim 1, characterized in that: The connecting disk body strip openings (17) are evenly distributed along the outer surface of the connecting disk body (1).

4. The brush cutter connection plate assembly according to claim 1, characterized in that: The interior of the chamber (8) is injected with lubricating grease.

5. The brush cutter connection plate assembly according to claim 1, characterized in that: The cooling fan (14) is fixedly connected to the passive disk drive shaft (20), and the cooling fan (14) is rotated inside the connecting disk body (1) via the passive disk drive shaft (20).

6. The brush cutter connection plate assembly according to claim 1, characterized in that: The clamping sleeve (6) is further provided with a transmission shaft assembly (2), wherein the transmission shaft assembly (2) is inserted into the interior of the clamping sleeve (6) and is key-connected to the passive disk transmission shaft (20) via the splines (10) inside the passive disk.

7. The brush cutter connection plate assembly according to claim 1, characterized in that: The bearing seat assembly (19) is further provided with a passive disk retaining ring (9), the passive disk retaining ring (9) being mounted inside the bearing seat assembly (19), a second bearing (13) being mounted below the passive disk retaining ring (9), a first bearing (11) being mounted below the second bearing (13), and a bearing retaining ring (12) being mounted below the first bearing (11).

8. The brush cutter connection plate assembly according to claim 7, characterized in that: The passive disk transmission shaft (20) passes through the interior of the bearing retaining ring (12), the first bearing (11), the second bearing (13) and the passive disk retaining ring (9) in sequence, and the passive disk transmission shaft (20) is movably connected to the bearing seat assembly (19) via the first bearing (11) and the second bearing (13).

9. The brush cutter connection plate assembly according to claim 1, characterized in that: The connecting disc body (1) is further provided with a clutch (3), the clutch (3) being mounted below the connecting disc body (1), and an engine (4) being mounted below the clutch (3).

10. The brush cutter connection plate assembly according to claim 9, characterized in that: The connecting disc body (1) is connected to the engine (4) via threads, the clutch (3) is located inside the passive disc (15), and the friction plate of the clutch (3) is tightly fitted to the passive disc (15).

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