Multi-saw-blade trimmer

Abstract

The utility model discloses a multi-saw-blade trimmer, and belongs to the field of agricultural machinery. The trimmer comprises a support and a plurality of saw blades, the saw blades are arranged at equal intervals in the length direction of the support, each saw blade is rotationally connected with the support through a rotating shaft, each saw blade is fixedly connected with the rotating shaft through a connecting mechanism, the rotating shafts are rotationally connected with the support, and the rotating shafts are in transmission connection through a transmission mechanism. A plurality of saw blades are distributed in the length direction of the support at equal intervals, the length of the support can be utilized to the maximum extent so that the mowing range can be enlarged, the saw blades are fixed to the rotating shafts through the connecting mechanisms, and the rotating shafts can be mutually driven through the transmission mechanisms. All the saw blades can be driven to rotate by driving one rotating shaft to rotate.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a multi-blade saw trimmer. Background Technology

[0002] A lawnmower, also known as a lawn trimmer, is a mechanical tool used for mowing lawns, vegetation, etc. It consists of a cutter head, engine, wheels, a walking mechanism, blades, a handle, and a control unit. The cutter head is mounted on the wheels, and the engine is mounted on the cutter head. The blades are mounted on the engine's output shaft. The high-speed rotation of the blades, powered by the engine, significantly increases the cutting speed, saving workers' time and reducing manpower. However, existing lawnmowers have a relatively small cutting range, thus requiring a new type of lawnmower to address this issue. Utility Model Content

[0003] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a multi-blade trimming machine.

[0005] To achieve the above objectives, the technical solution of this utility model is: a multi-blade trimmer, comprising a support and saw blades, wherein a plurality of saw blades are provided, the saw blades being equidistantly arranged along the length direction of the support, each saw blade being rotatably connected to the support via a rotating shaft, each saw blade being fixedly connected to the rotating shaft via a connecting mechanism, the rotating shaft being rotatably connected to the support, and each rotating shaft being interconnected via a transmission mechanism.

[0006] By adopting the above technical solution, several saw blades are evenly distributed along the length of the support, which can maximize the use of the support length and thus increase the mowing range. The saw blades are fixed on each rotating shaft through a connecting mechanism, and the rotating shafts can drive each other through a transmission mechanism. By driving one rotating shaft to rotate, all the saw blades can be driven to rotate.

[0007] Preferably, the connecting mechanism includes a front pressure plate and a rear pressure plate. The rear pressure plate comprises two halves. An annular groove is formed on the rotating shaft. Both halves are inserted into the annular groove, and the two halves are joined together to form a circular rear pressure plate. The front pressure plate and the saw blade are both sleeved on the rotating shaft. The saw blade is held between the front pressure plate and the rear pressure plate. The front pressure plate, the saw blade, and the rear pressure plate all have several interconnected bolt holes. This invention, by inserting the two halves together into the annular groove and fixing them to the saw blade and the front pressure plate by bolting through threaded holes, ensures that the saw blade does not detach from the rotating shaft through the snap-fit ​​relationship between the halves and the annular groove. The cross-section of the annular groove is non-circular, so no relative rotation occurs when the rear pressure plate engages with the annular groove. Therefore, the rotating shaft can transmit rotation to the saw blade, thereby achieving the connection between the saw blade and the rotating shaft support.

[0008] Preferably, the transmission mechanism includes several pulleys, each pulley being driven and connected to each of the rotating shafts, and adjacent pulleys being interconnected by belts. This invention enables mutual transmission between adjacent pulleys via belts, so when one pulley is rotated, all rotating shafts simultaneously drive the saw blade to rotate.

[0009] Preferably, a coupling is connected to one of the pulleys, and the coupling is fixedly connected to the bracket. This invention utilizes the coupling to transmit rotational power from the outside to the pulley inside the bracket, thus facilitating the application of power to the pulley.

[0010] Preferably, the coupling is connected to the rotating shaft via a splined shaft, and the rotating shaft has an internal splined hole into which the splined shaft is inserted. This invention utilizes the cooperation between the internal splined hole and the splined shaft to achieve a transmission connection between the rotating shaft and the coupling.

[0011] Preferably, the rotating shaft is rotatably connected to the bracket via a support cylinder, and the support cylinder is welded to the bracket. This invention utilizes the support cylinder to increase the contact area between the rotating shaft and the bracket, thereby providing stable support for the rotating shaft.

[0012] Preferably, a bearing is fixedly connected inside the support cylinder, and the rotating shaft is rotatably connected to the support cylinder through the bearing. This invention utilizes the bearing to prevent mutual wear between the rotating shaft and the support cylinder, while also reducing the resistance to rotation of the shaft.

[0013] Preferably, the bracket is fixedly connected to a connecting plate, and a connecting cylinder is provided through the connecting plate, the connecting cylinder being welded to the connecting plate. This invention utilizes the cooperation between the connecting plate and the connecting cylinder to allow the bracket to be connected to the traveling mechanism via bolts.

[0014] Preferably, the bracket is provided with a rear cover for shielding the transmission mechanism, and the rear cover and the bracket are detachably connected to each other by bolts. This invention utilizes the rear cover to protect the entire transmission mechanism, thereby preventing the entry of dust and debris and avoiding wear on the transmission mechanism.

[0015] In summary, the beneficial effects of this utility model are:

[0016] 1. Distributing several saw blades at equal intervals along the length of the support can maximize the use of the support's length and thus increase the mowing area.

[0017] 2. The saw blades are fixed on each rotating shaft by a connecting mechanism. The rotating shafts can drive each other through a transmission mechanism. By driving one rotating shaft to rotate, all the saw blades can be driven to rotate.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0019] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0020] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0022] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall cross-sectional structure;

[0025] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at point A;

[0026] Figure 3 This is a structural schematic diagram of the connecting plate.

[0027] Explanation of main reference numerals: 1. Bracket; 2. Saw blade; 3. Shaft; 4. Front pressure plate; 5. Rear pressure plate; 6. Half plate; 7. Bolt hole; 8. Pulley; 9. Coupling; 10. Splined shaft; 11. Support cylinder; 12. Bearing; 13. Connecting plate; 14. Connecting cylinder; 15. Rear cover. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0029] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] like Figure 1-3 As shown, a multi-blade trimmer includes a support 1 and saw blades 2. Several saw blades 2 are provided and are equidistantly arranged along the length direction of the support 1. Each saw blade 2 is rotatably connected to the support 1 through a rotating shaft 3. Each saw blade 2 is fixedly connected to the rotating shaft 3 through a connecting mechanism. The rotating shaft 3 is rotatably connected to the support 1. Each rotating shaft 3 is interconnected through a transmission mechanism.

[0033] By adopting the above technical solution, several saw blades 2 are evenly distributed along the length of the support 1, which can maximize the use of the length of the support 1 and thus increase the mowing range. The saw blades 2 are fixed on each rotating shaft 3 through a connecting mechanism. The rotating shafts 3 can drive each other through a transmission mechanism. By driving one of the rotating shafts 3 to rotate, all the saw blades 2 can be driven to rotate.

[0034] The connecting mechanism includes a front pressure plate 4 and a rear pressure plate 5. The rear pressure plate 5 consists of two halves 6. An annular groove is provided on the rotating shaft 3. Both halves 6 are inserted into the annular groove, and the two halves 6 are spliced ​​together to form a circular rear pressure plate 5. The front pressure plate 4 and the saw blade 2 are both sleeved on the rotating shaft 3. The saw blade 2 is clamped between the front pressure plate 4 and the rear pressure plate 5. The front pressure plate 4, the saw blade 2, and the rear pressure plate 5 all have several interconnected bolt holes 7. By inserting the two halves 6 together into the annular groove and fixing them to the saw blade 2 and the front pressure plate 4 by bolting through the threaded holes, the saw blade 2 can not be separated from the rotating shaft 3 through the snap-fit ​​relationship between the halves 6 and the annular groove. The cross-section of the annular groove is a non-circular cross-section, so no relative rotation occurs when the rear pressure plate 5 is engaged with the annular groove. Therefore, the rotating shaft 3 can transmit rotation to the saw blade 2, thereby realizing the connection between the saw blade 2 and the rotating shaft 3 support 1.

[0035] The transmission mechanism includes several pulleys 8, each pulley 8 being connected to each rotating shaft 3. Adjacent pulleys 8 are interconnected by belts. The belts between adjacent pulleys 8 enable them to drive each other, so when one pulley 8 is rotated, all rotating shafts 3 can simultaneously drive the saw blade 2 to rotate.

[0036] One of the pulleys 8 is connected to a coupling 9, which is fixedly connected to the bracket 1. The coupling 9 allows rotational power to be transmitted from the outside to the pulley 8 inside the bracket 1, thus facilitating the application of power to the pulley 8.

[0037] The coupling 9 is connected to the rotating shaft 3 via a splined shaft 10. The rotating shaft 3 has an internal splined hole, into which the splined shaft 10 is inserted. The transmission connection between the rotating shaft 3 and the coupling 9 is achieved by the mutual cooperation between the internal splined hole and the splined shaft 10.

[0038] The rotating shaft 3 is rotatably connected to the bracket 1 via a support cylinder 11, which is welded to the bracket 1. The support cylinder 11 increases the contact area between the rotating shaft 3 and the bracket 1, thereby providing stable support for the rotating shaft 3.

[0039] A bearing 12 is fixedly connected inside the support cylinder 11, and the rotating shaft 3 is rotatably connected to the support cylinder 11 through the bearing 12. The bearing 12 can prevent mutual wear between the rotating shaft 3 and the support cylinder 11, and at the same time reduce the resistance when the rotating shaft 3 rotates.

[0040] The bracket 1 is fixedly connected to a connecting plate 13, through which a connecting cylinder 14 is provided, and the connecting cylinder 14 is welded to the connecting plate 13. By utilizing the cooperation between the connecting plate 13 and the connecting cylinder 14, the bracket 1 can be connected to the traveling mechanism by bolt connection.

[0041] The bracket 1 is equipped with a rear cover 15 for shielding the transmission mechanism. The rear cover 15 is detachably connected to the bracket 1 by bolts. The rear cover 15 can protect the entire transmission mechanism, thereby preventing the entry of dust and debris and avoiding wear on the transmission mechanism.

[0042] It should be noted that many specific details have been set forth in the above description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A multi-blade trimmer, comprising a support (1) and saw blades (2), characterized in that: The saw blades (2) are provided in a plurality of manner. The saw blades (2) are equidistantly arranged along the length direction of the bracket (1). Each saw blade (2) is rotatably connected to the bracket (1) through a rotating shaft (3). Each saw blade (2) is fixedly connected to the rotating shaft (3) through a connecting mechanism. The rotating shaft (3) is rotatably connected to the bracket (1). Each rotating shaft (3) is interconnected through a transmission mechanism.

2. The multi-blade trimmer according to claim 1, characterized in that: The connecting mechanism includes a front pressure plate (4) and a rear pressure plate (5). The rear pressure plate (5) includes two halves (6). An annular groove is provided on the rotating shaft (3). Both halves (6) are inserted into the annular groove, and the two halves (6) are spliced ​​together to form a circular rear pressure plate (5). The front pressure plate (4) and the saw blade (2) are both sleeved on the rotating shaft (3). The saw blade (2) is clamped between the front pressure plate (4) and the rear pressure plate (5). The front pressure plate (4), the saw blade (2) and the rear pressure plate (5) are all provided with several interconnected bolt holes (7).

3. The multi-blade trimmer according to claim 2, characterized in that: The transmission mechanism includes a plurality of pulleys (8), each of the pulleys (8) being driven to each of the rotating shafts (3), and adjacent pulleys (8) being driven to each other by belts.

4. The multi-blade trimmer according to claim 3, characterized in that: One of the pulleys (8) is connected to a coupling (9), which is fixedly connected to the bracket (1).

5. The multi-blade trimmer according to claim 4, characterized in that: The coupling (9) is connected to the rotating shaft (3) via a splined shaft (10). The rotating shaft (3) has an inner splined hole, and the splined shaft (10) is inserted into the inner splined hole.

6. The multi-blade trimmer according to claim 1, characterized in that: The rotating shaft (3) is rotatably connected to the bracket (1) through the support cylinder (11), and the support cylinder (11) is welded to the bracket (1).

7. The multi-blade trimmer according to claim 6, characterized in that: A bearing (12) is fixedly connected inside the support cylinder (11), and the rotating shaft (3) is rotatably connected to the support cylinder (11) through the bearing (12).

8. The multi-blade trimmer according to claim 1, characterized in that: The bracket (1) is fixedly connected to a connecting plate (13), and a connecting cylinder (14) is provided through the connecting plate (13). The connecting cylinder (14) is welded to the connecting plate (13).

9. The multi-blade trimmer according to claim 1, characterized in that: The bracket (1) is provided with a rear cover (15) for covering the transmission mechanism, and the rear cover (15) and the bracket (1) are connected to each other by bolts.

Images