Multi-group cutting knife device for mowing machine

Abstract

The invention discloses a multi-group cutting knife device for a mower, which realizes efficient transmission of power and improvement of mowing efficiency by integrating a plurality of cutterhead seat assemblies, a transition gear set and a power input assembly. The power input assembly is responsible for receiving power of an output shaft of a gearbox and transmitting the power to the multiple cutter head seat assemblies through the transition gear set. The cutterhead seat assembly is responsible for installing a cutting disc to complete mowing operation. In order to improve the stability and durability of the structure, each component is supported and fixed by adopting a bearing and a bearing seat. And meanwhile, the mounting box adopts a sealing design, so that dust, water and other impurities are effectively prevented from invading. The device has the advantages of being efficient in transmission, stable in structure, convenient to maintain, high in adaptability, safe, reliable and the like, and powerful support is provided for garden and agricultural mechanization.

Description

Technical Field

[0001] The invention relates to a multi-group cutting blade device for a lawn mower. Background Art

[0002] With the rapid development of agricultural modernization and landscaping, the demand for lawn mowers is growing. In order to meet the mowing needs of different sites and crops, it is particularly important to design a multi-group cutting blade device that is efficient, stable, and easy to maintain. Traditional lawn mowers have deficiencies in transmission efficiency, structural stability, and sealing, and it is difficult to meet the requirements of large-scale, high-efficiency mowing operations. In some large places such as farms and golf courses, general lawn machines can no longer meet the operational needs, and some large-surface mowing machines are urgently needed to complete lawn cutting and trimming. Summary of the invention

[0003] The purpose of the present invention is to solve the above deficiencies in the prior art and provide a multi-group cutting blade device for a lawn mower.

[0004] A multi-group cutting blade device for a lawn mower comprises an installation box, wherein a plurality of cutter disc seat assemblies, a plurality of transition gear sets and a power input assembly are arranged in the installation box, wherein the transition gear sets, the cutter disc seat assemblies and the power input assemblies are arranged side by side at intervals, and transition gear sets are arranged between the plurality of cutter disc assemblies and between the cutter disc assemblies and the power input assemblies.

[0005] Furthermore, the power input assembly includes an input gear, a protruding first connecting shaft is provided at the center of the input gear, a through hole is provided at the center of the first connecting shaft, the through hole is used to pass the output shaft of the gearbox, a bearing is sleeved on the outer side of the first connecting shaft, a bearing seat is provided on the outer side of the bearing, the inner side surface of the bearing is connected to the outer side surface of the first connecting shaft, and the outer side surface of the bearing is connected to the inner side surface of the bearing seat.

[0006] Furthermore, the cutter disc seat assembly includes a driving gear, a protruding second connecting shaft is provided at the center of the driving gear, a bearing is provided on the outside of the second connecting shaft, a bearing seat is provided on the outside of the bearing, and a connecting disk is provided on the top of the connecting shaft for installing the cutting disc.

[0007] Furthermore, two bearings are arranged on the outer side of the second connecting shaft, a spacer sleeve is arranged between the two bearings, and the spacer sleeve is arranged on the outer side of the second connecting shaft.

[0008] Furthermore, a skeleton sealing ring is provided between the outer wall of the spacer sleeve and the inner wall of the bearing seat, and an O-type sealing ring is provided between the inner side surface of the spacer sleeve and the outer side surface of the second connecting shaft.

[0009] Furthermore, the transition gear group includes a first transition gear and a second transition gear, the first transition gear and the second transition gear are meshed with each other, the transition gear group located between the power input component and the cutter disc seat component, its first transition gear is meshed with the input gear, and its second transition gear is meshed with the drive gear, and the transition gear group located between the two cutter disc seat assemblies, its first transition gear and the second transition gear are respectively meshed with adjacent drive gears.

[0010] Furthermore, the installation box includes a box cover and a box body, the box body and the cover are fixedly connected by bolts, and the edges of the box body and the box cover are provided with a plurality of corresponding connection holes, and the bolts pass through the connection holes on the box cover and the box body at one time to achieve fixation.

[0011] Furthermore, an open chamber is provided in the box body, which cooperates with the box cover to form a sealed installation chamber, and a first installation position, multiple second installation positions, and multiple third installation positions are provided in the installation chamber at intervals. The first installation position is used to install the power input component, which is located at the left end of the installation chamber, and the second installation position and the third installation position are used to install the transition gear set and the cutter head seat assembly, respectively. The second installation position and the third installation position are staggered, and the second installation position is penetrated by a screw and fixed by a nut. A bushing is provided on the outer side of the screw, and a bearing is provided on the outer side of the bushing. The first transition gear or the second transition gear is provided on the outer side of the bearing, and the first connecting shaft and the second connecting shaft extend out of the box cover.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0013] Efficient power transmission: Through the well-designed transition gear set, efficient and smooth power transmission from the power input assembly to multiple cutter seat assemblies is achieved, ensuring the stable operation and mowing efficiency of the mower.

[0014] Stable structure: The cutter head assembly and power input assembly are fixed by bearings and bearing seats, which enhances the stability of the structure, reduces vibration and noise during operation, and prolongs the service life.

[0015] Good sealing: The installation box adopts a box body and a box cover, which are fixed and connected by bolts to form a sealed installation cavity, which effectively prevents the invasion of dust and impurities and protects the normal operation of internal gears and bearings.

[0016] Easy maintenance: Each component in the installation box adopts a modular design, which is easy to disassemble and replace, reducing maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a multiple-set cutting blade device for a lawn mower;

[0018] Figure 2 is a cross-sectional view of the power input assembly;

[0019] Figure 3 is a schematic diagram of a cutterhead assembly;

[0020] Figure 4 yes Figure 1 A partial enlarged view of point A;

[0021] In the figure, the box cover 1, the box body 2, the first installation position 3, the power input assembly 4, the second installation position 5, the transition gear set 6, the third installation position 7, the cutter head seat assembly 8, the input gear 9, the first connecting shaft 10, the bearing 11, the bearing seat 12, the driving gear 13, the second connecting shaft 14, the connecting plate 15, the spacer 16, the skeleton sealing ring 17, the O-ring 18, the screw 19, the nut 20, and the bushing 21. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0023] like Figure 1-4 As shown, box cover, 2, box body, 3, first installation position, 4, power input assembly, 5, second installation position, 6, transition gear set, 7, third installation position, 8, cutter head assembly, 9, input gear, 10, first connecting shaft, 11, bearing, 12, bearing seat, 13, drive gear, 14, second connecting shaft, 15, connecting plate, 16, spacer, 17, skeleton sealing ring, 18, O-ring, 19, screw, 20, nut, 21, bushing

[0024] A multi-group cutting blade device for a lawn mower includes an installation box, in which a plurality of cutter disc seat assemblies 8, a plurality of transition gear sets 6, and a power input assembly 4 are arranged. The transition gear sets 6, the cutter disc seat assemblies 8, and the power input assembly 4 are arranged side by side at intervals, and transition gear sets 6 are arranged between the plurality of cutter disc assemblies and between the cutter disc assemblies and the power input assembly 4.

[0025] In the present example, the power input assembly 4 includes an input gear 9, a protruding first connecting shaft 10 is provided at the center of the input gear 9, a through hole is provided at the center of the first connecting shaft 10, and the through hole is used to pass the output shaft of the gearbox, a bearing 11 is sleeved on the outer side of the first connecting shaft 10, a bearing seat 12 is provided on the outer side of the bearing 11, the inner side surface of the bearing 11 is connected to the outer side surface of the first connecting shaft 10, and the outer side surface of the bearing 11 is connected to the inner side surface of the bearing seat 12.

[0026] In this example, the cutter disc seat assembly 8 includes a driving gear 13, a protruding second connecting shaft 14 is provided at the center of the driving gear 13, a bearing 11 is provided on the outer side of the second connecting shaft 14, a bearing seat 12 is provided on the outer side of the bearing 11, and a connecting disk 15 is provided on the top of the connecting shaft, and the connecting disk 15 is used to install the cutting disc.

[0027] In this example, two bearings 11 are disposed on the outer side of the second connecting shaft 14 , a spacer sleeve 16 is disposed between the two bearings 11 , and the spacer sleeve 16 is sleeved on the outer side of the second connecting shaft 14 .

[0028] In this example, a skeleton sealing ring 17 is provided between the outer wall of the spacer sleeve 16 and the inner wall of the bearing seat 12 , and an O-type sealing ring 18 is provided between the inner side surface of the spacer sleeve 16 and the outer side surface of the second connecting shaft 14 .

[0029] In the present example, the transition gear set 6 includes a first transition gear and a second transition gear. The first transition gear and the second transition gear are meshed with each other. The transition gear set 6 located between the power input assembly 4 and the cutter disc seat assembly 8 has its first transition gear meshed with the input gear 9 and its second transition gear meshed with the drive gear 13. The transition gear set 6 located between the two cutter disc seat assemblies 8 has its first transition gear and the second transition gear meshed with the adjacent drive gear 13 respectively.

[0030] In this example, the installation box includes a box cover 1 and a box body 2. The box body 2 and the cover plate are fixedly connected by bolts. The edges of the box body 2 and the box cover 1 are provided with a plurality of corresponding connection holes. The bolts pass through the connection holes on the box cover 1 and the box body 2 at one time to achieve fixation.

[0031] In the present example, an open chamber is provided in the box body 2, which cooperates with the box cover 1 to form a sealed installation cavity, and a first installation position 3, multiple second installation positions 5, and multiple third installation positions 7 are provided in the installation cavity at intervals. The first installation position 3 is used to install the power input component 4, which is located at the left end of the installation cavity. The second installation position 5 and the third installation position 7 are respectively used to install the transition gear set 6 and the cutter head seat component 8. The second installation position 5 and the third installation position 7 are staggered. The second installation position 5 is penetrated by a screw 19 and fixed by a nut 20. The outer side of the screw 19 is sleeved with a bushing 21, and the outer side of the bushing 21 is sleeved with a bearing 11. The outer side of the bearing 11 is sleeved with a first transition gear or a second transition gear, and the first connecting shaft 10 and the second connecting shaft 14 extend out of the box cover 1.

[0032] Instructions for use: First, pass the output shaft of the gearbox through the central through hole of the first connecting shaft of the input gear in the power input assembly, and fix it with the bearing and the bearing seat. Next, install the bearing and the bearing seat on the second connecting shaft of the cutter seat assembly, and connect the connecting plate on the top to install the cutting disc. The power transmission is achieved by the mutual meshing of the first transition gear and the second transition gear in the transition gear set, and their meshing relationship with the input gear and the driving gear. The installation box is divided into a box body and a box cover, and fixed by bolts through the connecting holes to form a sealed installation cavity. Install the power input assembly in the cavity according to the first installation position, the transition gear set in the second installation position, and the cutter seat assembly in the third installation position, and the second and third installation positions are staggered. Finally, ensure that the first connecting shaft and the second connecting shaft extend out of the box cover. After the overall assembly is completed, start the gearbox to drive multiple cutting discs for mowing.

[0033] This structure is mainly mounted on a tractor with matching power, and uses the tractor's output power to transmit to the gearbox, the cutter device and the cutter to complete the operation requirements; the multi-component cutter device is connected to each cutter component one by one through transition gears to complete the operation, and on the basis of the original cutting width, the combined gear can be added according to this method to achieve the purpose of increasing the cutting width.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multiple-group cutting blade device for a lawn mower, characterized in that: It comprises an installation box, in which a plurality of cutter disc seat assemblies, a plurality of transition gear sets and a power input assembly are arranged. The transition gear sets, the cutter disc seat assemblies and the power input assemblies are arranged side by side at intervals, and a transition gear set is arranged between the plurality of cutter disc assemblies and between the cutter disc assemblies and the power input assemblies.

2. A multiple-group cutting blade device for a lawn mower according to claim 1, characterized in that: The power input assembly includes an input gear, a protruding first connecting shaft is provided at the center of the input gear, a through hole is provided at the center of the first connecting shaft, the through hole is used to pass the output shaft of the gearbox, a bearing is sleeved on the outer side of the first connecting shaft, a bearing seat is provided on the outer side of the bearing, the inner side surface of the bearing is connected to the outer side surface of the first connecting shaft, and the outer side surface of the bearing is connected to the inner side surface of the bearing seat.

3. A multiple-group cutting blade device for a lawn mower according to claim 2, characterized in that: The cutter disc seat assembly includes a driving gear, a protruding second connecting shaft is provided at the center of the driving gear, a bearing is provided on the outside of the second connecting shaft, a bearing seat is provided on the outside of the bearing, and a connecting disk is provided on the top of the connecting shaft for installing the cutting disc.

4. A multiple-group cutting blade device for a lawn mower according to claim 3, characterized in that: Two bearings are arranged on the outer side of the second connecting shaft, a spacer sleeve is arranged between the two bearings, and the spacer sleeve is sleeved on the outer side of the second connecting shaft.

5. A multiple-group cutting blade device for a lawn mower according to claim 4, characterized in that: A skeleton sealing ring is arranged between the outer wall of the spacer sleeve and the inner wall of the bearing seat, and an O-type sealing ring is arranged between the inner side surface of the spacer sleeve and the outer side surface of the second connecting shaft.

6. A multiple-group cutting blade device for a lawn mower according to claim 3, characterized in that: The transition gear set includes a first transition gear and a second transition gear. The first transition gear and the second transition gear are meshed with each other. The transition gear set is located between the power input component and the cutter disc seat component, and its first transition gear is meshed with the input gear, and its second transition gear is meshed with the drive gear. The transition gear set is located between the two cutter disc seat assemblies, and its first transition gear and the second transition gear are respectively meshed with adjacent drive gears.

7. A multiple-group cutting blade device for a lawn mower according to claim 6, characterized in that: The installation box comprises a box cover and a box body, the box body and the cover are fixedly connected by bolts, the box body and the box cover are provided with a plurality of corresponding connection holes at the edges, and the bolts pass through the connection holes on the box cover and the box body at one time to achieve fixation.

8. A multiple-group cutting blade device for a lawn mower according to claim 7, characterized in that: An open chamber is provided in the box body, which cooperates with the box cover to form a sealed installation chamber. A first installation position, multiple second installation positions, and multiple third installation positions are provided in the installation chamber. The first installation position is used to install a power input component, which is located at the left end of the installation chamber. The second installation position and the third installation position are respectively used to install a transition gear set and a cutter head seat assembly. The second installation position and the third installation position are staggered. The second installation position is penetrated by a screw and fixed by a nut. A bushing is provided on the outer side of the screw, a bearing is provided on the outer side of the bushing, and a first transition gear or a second transition gear is provided on the outer side of the bearing. The first connecting shaft and the second connecting shaft extend out of the box cover.

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