A special guide transmission component for a mower

Abstract

The utility model provides a kind of special guiding transmission component of mower, it is specifically related to mower technical field, including machine body, transmission motor, transmission assembly, it is characterized by: the transmission motor on the machine body upper surface, transmission motor output end is connected with transmission main shaft, transmission main shaft other end is connected with shaft coupling, the shaft coupling vertical through machine body upper surface is connected with transmission assembly;The utility model is through the layout of transmission wheel group and double transmission belt, forms multistage linkage transmission path, compared with traditional single chain transmission efficiency effectively improves, transmission wheel B adopts double power output structure, both sides grass cutter group synchronous rotation are driven by second transmission belt, and it is rotated by first transmission belt Grass cutter group under transmission wheel B carries out rotational motion, power utilization rate is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, specifically to a dedicated guide transmission component for lawnmowers. Background Technology

[0002] With the rapid development of garden machinery, lawnmowers, as core equipment for lawn maintenance, rely heavily on the stability and efficiency of their transmission systems to directly impact overall machine performance. Traditional lawnmowers often use chains or gear sets to drive the blades, resulting in a single transmission path, complex structure, and high maintenance costs. Especially in complex terrain, traditional transmission systems are prone to jamming due to grass clippings, affecting transmission efficiency and even causing component wear.

[0003] The steering mechanisms of existing lawnmowers mostly rely on the overall vehicle body for steering, lacking flexible multi-directional adjustment capabilities. This makes them inconvenient to operate in narrow areas or scenarios with many obstacles, and the blade assembly has a limited coverage area, making it difficult to meet the needs of efficient mowing.

[0004] Therefore, a guide transmission component with high transmission efficiency, compact structure, strong safety and flexible adjustment capability is designed to improve the operational adaptability, ease of operation and safety performance of lawnmowers. Utility Model Content

[0005] The purpose of this invention is to provide a dedicated guide transmission component for lawnmowers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dedicated guide transmission component for a lawnmower, comprising a body, a transmission motor, and a transmission assembly, characterized in that: the transmission motor is located on the upper surface of the body, the output end of the transmission motor is connected to a transmission main shaft, the other end of the transmission main shaft is connected to a coupling, and the coupling vertically penetrates the upper surface of the body and is connected to the transmission assembly;

[0007] The transmission assembly includes a transmission wheel A, a transmission wheel B, a transmission wheel C, a transmission wheel D, a first transmission belt, and a second transmission belt. The bottom of the coupling is fixedly connected to the transmission wheel A, which is located below the machine body. The transmission wheel B is arranged parallel to its rear. The transmission wheels C and D are symmetrically arranged on both sides of the transmission wheel A. The first transmission belt is sleeved on the outside of the transmission wheels A and B. The second transmission belt is sleeved below the transmission wheel B. The two ends of the second transmission belt are respectively sleeved on the transmission wheels C and D.

[0008] A traction frame is fixedly connected to the rear of the machine body, and wheel support frames are fixedly installed on both sides of the upper surface of the machine body. A bushing is fixedly connected to both ends of the wheel support frame, and an adjusting shaft is fitted inside the bushing. The bottom of the adjusting shaft is fixed to the center of the upper surface of the wheel seat, and a universal wheel is connected to the bottom of the wheel seat.

[0009] Preferably, the transmission wheels B, C, and D are respectively fixedly connected to a first rotating shaft, a second rotating shaft, and a third rotating shaft, and a set of lawn mowing blades is fixedly connected below each set of rotating shafts.

[0010] Preferably, a protective cover is provided above the surface of the transmission component to prevent accidental injury to the operator during the grass-cutting transmission operation.

[0011] Preferably, a protective plate is provided behind the three sets of grass-cutting blades at the bottom of the machine body, along the movement trajectory.

[0012] Preferably, the front end of the machine body is provided with a row of conical toothed racks, which facilitates the sharp cutting of weeds taller than the machine body during mowing operations.

[0013] Preferably, the wheel support frame extends from both ends to the two sides of the machine body and is fixedly connected to the bushings, and the bushings have three through holes vertically and evenly opened on their surfaces.

[0014] Preferably, the surface of the adjusting shaft has multiple pin holes vertically formed, and the adjusting shaft sleeve is fixed inside the bushing by means of a fixing pin passing through the through hole and the pin hole.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model forms a multi-stage linkage transmission path through the layout of the transmission wheel set and the double transmission belt, which effectively improves the efficiency compared with the traditional single chain transmission. The transmission wheel B adopts a dual power output structure, which drives the two sides of the grass cutting blade set to rotate synchronously through the second transmission belt, and drives the grass cutting blade set below the transmission wheel B to rotate through the first transmission belt, thus greatly improving the power utilization rate.

[0017] 2. The three independent blade sets form a triangular cutting area under the constant speed drive of the second transmission belt. Combined with the spacing design between the transmission wheels, the effective working width is greatly increased. The rotation direction of the grass cutting blade set is optimized to form a path, which can concentrate grass clippings and guide them to the protective plate area, reduce the energy consumption of secondary cutting by the blades, and improve the grass cutting efficiency.

[0018] 3. The bushings fixedly connected to both ends of the wheel support frame and the multiple sets of pin holes of the adjusting shaft are locked together, which can realize the height of the universal wheel within a suitable range. Combined with the pre-cutting function of the front rack assembly, the equipment can maintain a stable clearance between the blade assembly and the ground during operation. The locking design of the through hole and the adjusting shaft pin hole reduces maintenance and production costs. Attached Figure Description

[0019] Figure 1 This is a diagram of the internal structure of the transmission component of this utility model.

[0020] Figure 2This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the three-dimensional bottom structure of this utility model.

[0022] Figure 4 This is a schematic diagram showing the connection between the bushing and the adjusting shaft of this utility model.

[0023] The components in the attached diagram are labeled as follows: 1: Body, 101: Protective cover, 102: Rack and pinion assembly, 2: Drive motor, 3: Drive shaft, 4: Coupling, 5: Transmission assembly, 51: Drive wheel A, 52: Drive wheel B, 53: Drive wheel C, 54: Drive wheel D, 55: First drive belt, 56: Second drive belt, 6: First rotating shaft, 7: Second rotating shaft, 8: Third rotating shaft, 9: Grass cutter assembly, 10: Traction frame, 11: Wheel support frame, 12: Bushing, 121: Through hole, 13: Adjusting shaft, 131: Pin hole, 14: Wheel seat, 15: Caster wheel, 16: Protective plate Detailed Implementation

[0024] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0025] This embodiment provides a dedicated guide transmission component for lawnmowers, such as... Figures 1 to 4 As shown, the device includes a body 1, a drive motor 2, and a transmission assembly 5. The body 1 adopts a rectangular frame structure, with the drive motor 2 fixedly installed at the top center. The output shaft of the drive motor 2 is connected to the drive spindle 3 via a key. The end of the drive spindle 3 is connected to a coupling 4, which is perpendicularly connected to the transmission assembly 5. The coupling 4 passes through a reserved through hole at the top of the body 1 to ensure that power is transmitted from the top to the transmission assembly 5 below.

[0026] The transmission assembly 5 includes four transmission wheels and two transmission belts: transmission wheel A51 is fixed at the bottom of the coupling 4, and transmission wheel B52 is arranged parallel behind transmission wheel A51. The two are synchronously rotated by the first transmission belt 55. The second transmission belt 56 is coaxially arranged below transmission wheel B52. The two ends of the second transmission belt 56 pass around the symmetrically arranged transmission wheels C53 and D54 respectively to form a double-sided power branch. The centers of transmission wheels B52, C53 and D54 are respectively fixed to the first rotating shaft 6, the second rotating shaft 7 and the third rotating shaft 8. The bottom ends of each rotating shaft are connected to the mowing blade assembly 9 through flanges. The three mowing blade assemblies are arranged in a triangular pattern with two in front and one behind to expand the working coverage area.

[0027] A traction frame 10 is welded to the rear end of the machine body 1 for connecting external drive equipment. Wheel support frames 11 are symmetrically arranged on both sides of the machine body. The two ends of the support frames extend out of the outer wall of the machine body 1 and are welded with bushings 12. Three equidistant through holes 121 are opened on the surface of the bushings 12 in the vertical direction. An adjusting shaft 13 is sleeved inside. Multiple sets of pin holes 131 are opened on the surface of the adjusting shaft 13. The fixing pins are inserted through the through holes 121 and the pin holes 131 to complete the fixing. The end of the adjusting shaft 13 is vertically fixed above the wheel seat 14. The height of the wheel seat 14 can be adjusted by adjusting the insertion position of the fixing pins. Universal wheels 15 are installed at the bottom of the wheel seat 14 to ensure that the lawnmower can turn flexibly.

[0028] The transmission assembly 5 is covered with a protective cover 101, which is fixed to the top of the machine body 1 with bolts to prevent the transmission belt from falling off or grass fragments from flying during operation. A circular cutting path protection plate 16 is installed behind the grass cutting blade assembly 9, with three semicircles on its edge to block grass fragments from flying backward. A row of conical racks 102 is welded to the front of the machine body 1 to pre-cut high-density weeds and reduce the load on the transmission assembly.

[0029] Working principle: After the drive motor 2 starts, the power drives the drive wheel A51 to rotate through the drive shaft 3 and coupling 4 in sequence. The first drive belt 55 drives the drive wheel B52 to rotate synchronously. The drive wheel B52 distributes the power to the drive wheel C53 and drive wheel D54 through the coaxial second drive belt 56. Then, the three sets of rotating shafts drive the mowing blade set 9 to rotate at high speed, forming a multi-blade collaborative cutting to improve weeding efficiency.

[0030] By pulling out the pin and moving the adjusting shaft 13 up and down, the ground clearance of the caster wheel 15 can be changed to adapt to different terrains and grass thicknesses. After the traction frame 10 is connected to the external power equipment, the caster wheel 15 can freely deflect with the steering operation to achieve precise path control. The protective cover 101 prevents the operator from contacting the high-speed transmission belt, the protective plate 16 guides the grass clippings to fall to both sides, and the conical rack assembly 102 pre-cuts tall grass to prevent long grass from getting tangled in the transmission shaft and ensures the stability of power transmission.

[0031] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A guide transmission component for a lawnmower, comprising a body (1), a drive motor (2), and a transmission assembly (5), characterized in that: A drive motor (2) is fixedly installed on the upper surface of the machine body (1). The output end of the drive motor (2) is connected to a drive spindle (3). The other end of the drive spindle (3) is connected to a coupling (4). The coupling (4) passes vertically through the upper surface of the machine body (1) and is connected to the transmission assembly (5). The transmission assembly (5) includes a transmission wheel A (51), a transmission wheel B (52), a transmission wheel C (53), a transmission wheel D (54), a first transmission belt (55), and a second transmission belt (56). The bottom of the coupling (4) is fixedly connected to the transmission wheel A (51). The transmission wheel A (51) is located below the machine body (1), and the transmission wheel B (52) is arranged parallel behind it. The transmission wheel C (53) and the transmission wheel D (54) are symmetrically arranged on both sides of the transmission wheel A (51). The first transmission belt (55) is sleeved on the outside of the transmission wheel A (51) and the transmission wheel B (52). The second transmission belt (56) is sleeved below the transmission wheel B (52). The two ends of the second transmission belt (56) are respectively sleeved on the transmission wheel C (53) and the transmission wheel D (54). A traction frame (10) is fixedly connected to the rear of the body (1). Wheel support frames (11) are fixedly provided on both sides of the upper surface of the body (1). A bushing (12) is fixedly connected to both ends of the wheel support frame (11). An adjusting shaft (13) is fitted inside the bushing (12). The bottom of the adjusting shaft (13) is fixed to the center of the upper surface of the wheel seat (14). A universal wheel (15) is connected to the bottom of the wheel seat (14).

2. The guide transmission component for a lawnmower as described in claim 1, characterized in that: The transmission wheels B (52), C (53) and D (54) are respectively fixedly connected to the first rotating shaft (6), the second rotating shaft (7) and the third rotating shaft (8), and a set of grass-cutting blades (9) are fixedly connected below each set of rotating shafts.

3. The guide transmission component for a lawnmower as described in claim 1, characterized in that: A protective cover (101) is provided above the surface of the transmission component (5) to prevent accidental injury to the operator during grass cutting transmission.

4. The guide transmission component for a lawnmower as described in claim 1, characterized in that: Behind the three sets of grass-cutting blades (9) at the bottom of the machine body (1), there is a protective plate (16) along the movement trajectory.

5. A guide transmission component for a lawnmower as described in claim 1, characterized in that: The front end of the machine body (1) is provided with a row of conical racks (102) to facilitate the sharp cutting of weeds higher than the machine body (1) during grass cutting operations.

6. A guide transmission component for a lawnmower as described in claim 1, characterized in that: The wheel support frame (11) extends from both ends of the machine body (1) and is fixedly connected to the bushings (12) on both sides. The bushings (12) have three through holes (121) vertically and evenly opened on their surface.

7. A guide transmission component for a lawnmower as described in claim 1 or 6, characterized in that: The adjusting shaft (13) has multiple pin holes (131) vertically opened on its surface. The adjusting shaft (13) is sleeved in the bushing (12) and can be fixed by a fixing pin through the through hole (121) and the pin hole (131).

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