CN218353266U

CN218353266U - Double-blade mower

Info

Publication number: CN218353266U
Application number: CN202222359714.4U
Authority: CN
Inventors: 胡金涛; 田伟; 蔡鑫鑫; 唐朝年; 赵彪
Original assignee: Chongqing Dajiang Power Equipment Manufacturing Co ltd
Current assignee: Chongqing Dajiang Power Equipment Manufacturing Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-24
Anticipated expiration: 2032-09-06

Abstract

The utility model relates to a double-blade mower, which comprises a frame, a motor and a blade disc, wherein the blade disc is connected on the frame, two identical blades are arranged on the blade disc, the two blades are positioned on the same plane, the middle part of each blade is rotationally connected with the blade disc, and the motor provides power for the rotation of the blades; the front end of the frame in the length direction is provided with a steering wheel, the rear end of the frame is provided with a supporting wheel, the length of the central connecting line of the two blades is greater than that of the blades, and an included angle between the central connecting line and the length direction of the frame is a complementary angle; the movement tracks of the two blades on the mower are circular, and the tangent line, which is parallel to the length direction of the frame and close to one end of the two circular tracks, is tangent to or intersected with the circular track of the other blade. The utility model discloses simple structure, the grass in the middle of the lawn mower can be cut totally, and two blades can not take place to interfere.

Description

Double-blade mower

Technical Field

The utility model belongs to lawn mower assembly field especially relates to a double knives lawn mower.

Background

The lawn mower is also called as a lawn mower and is used for trimming a lawn, the lawn mower has the types of a single-blade lawn mower and a double-blade lawn mower, two blades of the existing double-blade lawn mower are arranged on a cutter head side by side, the cutter head is transversely arranged on a frame, and the lawn mower always moves along the longitudinal direction of the frame; in order to prevent the two blades from interfering when rotating, a safety distance is reserved between the tips of the two blades, which can cause that a part of grass in the middle of the mower cannot be cut cleanly, and the mowing effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double-blade mower can cut the grass at clean lawn mower middle part under the circumstances of guaranteeing mowing efficiency.

The utility model provides a technical scheme that its technical problem adopted is:

a double-blade mower comprises a frame, a motor and a cutter head, wherein the cutter head is connected to the frame, two identical blades are arranged on the cutter head and are positioned on the same plane, the middle part of each blade is rotatably connected with the cutter head, and the motor provides power for the rotation of the blades; the length direction's of frame front end sets up the directive wheel, and the rear end sets up supporting wheel, its characterized in that: the length of the central connecting line of the two blades is greater than that of the blade, and the included angle between the central connecting line and the length direction of the frame is a complementary angle; the movement tracks of the two blades on the mower are circular, and a tangent line parallel to the length direction of the frame, close to one end of each of the two circular tracks, is tangent to or intersected with the circular track of the other blade.

The utility model provides a theory of operation that its technical problem adopted is: the cutter head is fixed on the frame, the two blades are arranged on the cutter head and are positioned on the same plane, so that the cut is tidy when the mower mows, the length of the connecting line of the center lines of the two blades is greater than that of the blades, namely the connecting line of the centers of the two blades is greater than the diameter of a circular track of the blades running on the cutter head, and the two blades cannot interfere with each other when rotating; in the forward process of the mower, the area between two tangents along the length direction of the vehicle frame of the running track of each blade can be cut, the included angle between the center connecting line of the two cutter discs and the vehicle frame is a complementary angle, the tangents, close to one end, of the two circular tracks and parallel to the length direction of the vehicle frame are tangent or intersected with the track of the other blade, so that the cuttable areas of the two blades are intersected or connected, the circular tracks of the blade in motion are located at positions close to the front and the back in the length direction of the vehicle frame, the mower moves forwards continuously, the cutting area of the back blade is intersected or connected with the cutting area of the front blade continuously, grass at the middle position of the mower is cut, and the middle of the mower cannot be missed to be cut.

1. Grass in the middle of the mower can be cut cleanly, and the two blades cannot interfere.

2. The utility model discloses simple structure, the double knives is mowed the effect area big, and is fast.

Drawings

Fig. 1 is one of the schematic diagrams of the mechanism of the present invention.

Fig. 2 is a second schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the mowing area of the mower.

Fig. 4 is a schematic view of a connection structure of the motor and the blade.

Fig. 5 is a schematic structural view of a limiting protrusion on the connecting block.

Fig. 6 is a schematic view of the structure of the coupling groove on the blade.

In the figure: the mowing machine comprises a frame 1, a motor 2, a cutter disc 3, blades 4, a limiting groove 41, a steering wheel 5, a supporting wheel 6, a connecting block 7, a limiting protrusion 71, a travelling wheel 8, a first travelling track 9, a second travelling track 10, a first cutting area 11, a second cutting area 12 and a repeated mowing area 13.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the double-blade mower comprises a frame 1, a motor 2 and a cutter head 3, wherein the cutter head 3 is connected to the frame 1, two identical blades 4 are arranged on the cutter head 3, and the two blades 4 are positioned on the same plane, so that a lawn is tidy when the mower mows, uneven conditions cannot occur, the middle part of each blade 4 is rotatably connected with the cutter head 3, and the motor 2 provides power for the rotation of the blade 4; the front end of the length direction of the frame 1 is provided with the steering wheel 5, so that the mower can flexibly steer in the mowing process, the rear end of the frame is provided with the supporting wheel 6, and the mower can be completely supported on a lawn by pushing only through the combined action of the steering wheel 5 and the supporting wheel 6. The length of the central connecting line of the two blades 4 is greater than that of the blades 4, and an included angle between the central connecting line and the length direction of the frame 1 is a complementary angle; the movement tracks of the two blades 4 on the mower are circular, and the tangent line parallel to the length direction of the frame 1, close to one end of the two circular tracks, is tangent to or intersected with the circular track of the other blade 4.

The cutter head 3 is fixed on the frame 1, the two blades 4 are arranged on the cutter head 3 and are positioned on the same plane, so that the cut is tidy when mowing, the length of the connecting line of the center lines of the two blades 4 is greater than that of the blades 4, namely the connecting line of the centers of the two blades 4 is greater than the diameter of a circular track of the blades 4 running on the cutter head 3, and the two blades 4 cannot interfere with each other when rotating; in the forward moving process of the mower, the area between two tangent lines of the running track of each blade 4 along the length direction of the frame 1 can be cut, the included angle between the central connecting line of the two cutter heads 3 and the frame 1 is a complementary angle, the tangent line parallel to the length direction of the frame 1, close to one end of the two circular tracks, is tangent to or intersected with the track of the other blade 4, so that the cutting areas of the two blades 4 are intersected or connected, the circular tracks of the movement of the blades 4 are positioned at a position close to the front and the back in the length direction of the frame 1, the mower continuously moves forwards, the cutting area of the back blade 4 is continuously intersected or connected with the cutting area of the front blade 4, grass at the middle position of the mower is cut, and the middle of the mower cannot be missed in cutting.

Furthermore, the included angle between the central connecting line of the two blades 4 and the length direction of the frame 1 is 65-85 degrees, namely the included angle between the central connecting line of the two blades 4 and the transverse connecting line of the frame 1 (namely the included angle theta in fig. 1) is 5-25 degrees, so that the mowing areas of the two blades 4 are intersected in the advancing process of the mower, the grass in the middle of the mowing areas is cut cleanly, the intersected parts are few, and the mowing area of the mower is ensured to be larger as large as possible in the same time. In practical settings, the included angle between the midline connecting line of the two blades 4 and the transverse connecting line of the frame 1 is generally set to 15 degrees, at which the mowing areas of the two blades 4 intersect, as shown in fig. 3, the moving tracks of the two blades 4 on the cutter head 3 are respectively a first moving track 9 and a second moving track 10, the cutting areas of the two blades 4 during the advancing process of the mower are a first cutting area 11 and a second cutting area 12, and the intersection area of the first cutting area 11 and the second cutting area 12 is a repeated mowing area 13.

Further, the number of the motors 2 is two, and each blade 4 is connected with one motor 2. The motor 2 is adopted to drive the blade 4, so that the starting current of the mower can be reduced, and the safety of the motor 2 and a control circuit is protected.

Further, the motor 2 is arranged on one side of the cutter head 3 connected with the frame 1, and a transmission shaft of the motor 2 penetrates through the cutter head 3 and then is connected with the blades 4 through a connecting block 7. The motor 2 can be fixed on the cutter head 3 or the frame 1, when the motor 2 is fixed on the frame 1, the cutter head 3 is firstly fixed on the frame 1 during installation, an output shaft of the motor 2 penetrates through a mounting point of the blade 4 on the cutter head 3, then the end part of the output shaft is fixedly connected with the connecting block 7, and then the connecting block 7 is connected with the blade 4; when the motor 2 is fixed on the cutter disc 3, firstly, an output shaft of the motor 2 penetrates through a mounting point of the blade 4 on the cutter disc 3, then the motor 2 is fixed on the cutter disc 3, then the end part of the output shaft is fixedly connected with the connecting block 7, and then the connecting block 7 is connected with the blade 4, and the cutter disc 3 provided with the blade 4 and the motor 2 is fixedly connected to the frame 1.

Further, be equipped with two at least spacing archs 71 on the connecting block 7, be provided with the spacing groove 41 of spacing protruding 71 adaptation on the blade 4, and when setting up, two spacing archs 71 set up to the shape difference or the shape is the same, and the opposite direction, it is fixed to be connected the direction when will making blade 4 be connected with connecting block 7, can not cause the wrong dress of blade 4 dress.

Further, the walking wheel that the edge of blade disc 3 one side that is close to directive wheel 5 was equipped with, the walking wheel be two and fixed connection on blade disc 3, and when setting up, the rotation direction of walking wheel is in the length direction of frame 1, can only advance or retreat along with the lawn mower, it is more smooth and easy to make like this to mow at the in-process of going forward, and when the place through unevenness, the walking wheel props up a height with blade disc 3 all the time, make the height on blade disc 3 and the ground unchangeable, blade 4 on the blade disc 3 can not cut the ground, play the effect of a protection to blade 4.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only a specific implementation method of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-blade mower comprises a frame (1), a motor (2) and a cutter head (3), wherein the cutter head (3) is connected to the frame (1), two identical blades (4) are arranged on the cutter head (3), the two blades (4) are located on the same plane, the middle of each blade (4) is rotatably connected with the cutter head (3), and the motor (2) provides power for the rotation of the blades (4); the length direction's of frame (1) front end sets up directive wheel (5), and the rear end sets up supporting wheel (6), its characterized in that:

the length of the central connecting line of the two blades (4) is greater than that of the blades (4), and an included angle between the central connecting line and the length direction of the frame (1) is a complementary angle; the movement tracks of the two blades (4) on the mower are circular, and the tangent line, which is close to one end of the two circular tracks and is parallel to the length direction of the frame (1), is tangent to or intersected with the circular track of the other blade (4).

2. A double-bladed mower according to claim 1, characterized in that the line joining the centres of said two blades (4) forms an angle of 65 ° to 85 ° with the length of the frame (1).

3. A double-bladed grass cutter according to claim 2, characterized in that said motors (2) are two, each blade (4) being associated with a respective motor (2).

4. A double-bladed mower according to claim 1, 2 or 3, characterized in that said motor (2) is arranged on the side of the cutterhead (3) connected to the carriage (1), the output shaft of the motor (2) passing through the cutterhead (3) being connected to the blades (4) by means of a connecting block (7).

5. The double-bladed mower according to claim 4, characterized in that said connecting block (7) is provided with at least two limiting projections (71), and said blade (4) is provided with limiting grooves (41) adapted to said limiting projections (71).

6. A double-bladed mower according to claim 1, 2, 3 or 5, characterized in that the edge of the cutterhead (3) on the side close to the steering wheel (5) is provided with travelling wheels.

7. A double-bladed mower according to claim 4, characterized in that the edge of the cutterhead (3) on the side close to the steering wheel (5) is provided with travelling wheels.