CN210580041U - Mowing device - Google Patents

Abstract

The utility model discloses a mowing device, which comprises a connecting frame, a first header assembly and two symmetrically arranged second header assemblies, wherein the first header assembly is arranged between the two second header assemblies, and the first header assembly and the second header assemblies are fixedly connected with the connecting frame; the first header assembly is provided with a plurality of first cutting knife output shafts and first cutting knife discs detachably connected with the first cutting knife output shafts; the second header assembly is provided with a plurality of second cutting knife output shafts and second cutting knife discs detachably connected with the second cutting knife output shafts; one end of the second header assembly, which is far away from the first header assembly, is provided with a grass mowing rope shaft used for installing a grass mowing rope. The utility model can meet the mowing demands of different scenes by replacing different first cutter discs and second cutter discs; one end of the second header assembly far away from the first header assembly is provided with a grass mowing rope shaft used for installing a grass mowing rope, so that turf at special positions such as road shoulders can be trimmed, and the grass mowing effect is improved.

Description

Mowing device

Technical Field

The utility model relates to the technical field of machinery, especially, relate to a grass cutting device.

Background

The mower is also called a weeder, a lawnmower, a lawn trimmer and the like, is a mechanical tool for trimming lawns, vegetations and the like, and is widely applied to occasions such as urban greening, agricultural production and the like. Existing lawn mowers include tractors and lawn mowing devices towed by the tractors.

The grass cutting device on the existing market is of a plurality of types, for example, Chinese patent CN205623225U discloses a novel garden grass cutting device, and the novel garden grass cutting device places the grass cutting device in a place needing to cut grass by hoisting a rigid lantern ring, and is installed on a tractor or other equipment moving ahead by a linking plug, and the connecting bolt is screwed by utilizing a traction arch frame, so that the height of a knife beam is set according to a user, and in the process of moving ahead, a blade of a high-speed rotating cutter head is driven to rotate by a grass cutting transmission device, and grass cutting is carried out. This novel gardens grass cutting device has the cutter singleness, and the operation area covers incompletely, and service environment is single, and can't prune the shortcoming of the turf of special positions such as curb.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present invention are proposed in order to provide a grass cutting device to overcome the above problems or at least partially solve the above problems.

In order to solve the problem, the embodiment of the utility model discloses a grass cutting device includes: the first header assembly is arranged between the two second header assemblies, and the first header assembly and the second header assembly are fixedly connected with the connecting frame; the first header assembly is provided with a plurality of first cutting knife output shafts and first cutting knife discs detachably connected with the first cutting knife output shafts; the second header assembly is provided with a plurality of second cutting knife output shafts and second cutting knife discs detachably connected with the second cutting knife output shafts; one end of the second header assembly, which is far away from the first header assembly, is provided with a grass mowing rope shaft used for installing a grass mowing rope.

Preferably, the connecting frame is provided with two header connecting blocks, wherein one header connecting block is used for fixedly connecting one end of the first header assembly and one end of the second header assembly; the other header connecting block is used for fixedly connecting the other end of the first header assembly and one end of the other second header assembly.

Preferably, the connecting frame is in an arch truss structure.

Preferably, the first header assembly comprises a first header, a first header motor mounting plate, a first header motor and a first transmission device, and the first header motor is fixedly connected with the first header through the first header motor mounting plate; the first transmission device is connected with the first header motor and the first cutting knife output shaft.

Preferably, the second header assembly comprises a second header, a second header motor mounting plate, a second header motor and a second transmission device, and the second header motor is fixedly connected with the second header through the second header motor mounting plate; the second transmission device is connected with the second header motor, the second cutting knife output shaft and the grass mowing rope shaft.

Preferably, the first header motor mounting plate is provided with a plurality of first oblong holes, and the first header motor is in bolted connection with the first oblong holes of the first header motor mounting plate; the second header motor mounting panel all is equipped with a plurality of second slotted holes, the second header motor with the second header motor mounting panel second slotted hole bolted connection.

Preferably, the first transmission device comprises a plurality of first belt wheels and a first transmission belt, the first belt wheels are correspondingly connected with the first cutting knife output shaft, and the first belt wheels are arranged on one side of the first cutting platform, which is far away from the first cutting knife disk; the first transmission belt is connected with the first header motor and the first belt wheels; the second transmission device comprises a plurality of second belt wheels and second transmission belts, the second cutting knife output shaft and the grass mowing rope shaft are respectively connected with the corresponding second belt wheels, and the second belt wheels are arranged on one side of the second header, which is far away from the second cutting head; the second driving belt is connected with the second header motor and the second belt wheels.

Preferably, be equipped with first comb grass separation blade between two adjacent first cutting knife output shafts of first header assembly, be equipped with second comb grass separation blade between two adjacent second cutting knife output shafts of second header assembly.

Preferably, the first header assembly is provided with a first protection cover, and the first protection cover covers the first transmission device; the second header assembly is provided with a second protective cover, and the second protective cover covers the second transmission device.

Preferably, the header further comprises a motor driver electrically connected to the first header motor and the second header motor, the motor driver being configured to control the first header motor and the second header motor.

Compared with the prior art, the utility model discloses beneficial effect lies in: the connecting frame is fixedly connected with the first header assembly and two second header assemblies symmetrically arranged at two ends of the first header assembly, the first header assembly is provided with a plurality of first cutting knife output shafts and first cutting knife discs detachably connected with the first cutting knife output shafts, the second header assembly is provided with second cutting knife output shafts and second cutting knife discs detachably connected with the second cutting knife output shafts, and mowing working requirements of different scenes can be met by replacing different first cutting knife discs and different second cutting knife discs; the one end of keeping away from first header assembly through the second header assembly is equipped with the rope axle of beating the grass that is used for the installation to beat the grass rope, can realize pruning special positions such as curb's turf to improve the effect of mowing, in addition, the utility model provides a grass cutting device is rational in infrastructure, easily maintains, and long service life and cost of maintenance are low.

Drawings

Fig. 1 is a schematic structural view of a mowing device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the first header assembly shown in fig. 1;

fig. 3 is a schematic illustration of a structure of one of the second header assemblies shown in fig. 1;

FIG. 4 is a schematic view of a portion of the structure shown in FIG. 3;

fig. 5 is a schematic illustration of another second header assembly shown in fig. 1.

10. A connecting frame; 11. a header connecting block; 20. a first header assembly; 201. a first header; 21. A first cutter output shaft; 22. a first cutter head; 24. a first header motor mounting plate; 25. a first header motor; 26. a first transmission device; 261. a first pulley; 262. a first drive belt; 27. a first grass combing baffle plate; 28. a first protective cover; 30. a second header assembly; 301. a second header; 31. a second cutter output shaft; 32. a second cutter head; 33. a grass rope shaft; 34. a second header motor mounting plate; 35. a second header motor; 36. a second transmission device; 361. a second pulley; 362. a second belt; 37. a second grass combing baffle plate; 38. a second protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is also changed accordingly, and the connection may be a direct connection or an indirect connection.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention provides a mowing device, including a connecting frame 10, a first header assembly 20 and two symmetrically disposed second header assemblies 30, wherein the first header assembly 20 is disposed between the two second header assemblies 30, and the first header assembly 20 and the second header assemblies 30 are both fixedly connected to the connecting frame 10. In one example, the attachment bracket 10 is attached to the work chassis of a lawnmower, and the mowing device is urged to travel evenly by the attachment bracket 10. Preferably, the connecting frame is an arch truss structure, and the two first header assemblies 20 and the second header assembly 30 are arranged in a shape like a Chinese character pin, so that the structural stability of the connecting frame can be improved by adopting the arch truss structure.

The first header assembly 20 is provided with a plurality of first cutter output shafts 21 and a first cutter head 22 detachably connected with the first cutter output shafts 21; the second header assembly 30 is provided with a plurality of second cutter output shafts 31 and a second cutter head 32 detachably connected with the second cutter output shafts 31. In this embodiment, the number of the first cutter output shafts 21 is three, the number of the second cutter output shafts is three, and the plurality of second cutter output shafts are arranged in a zigzag manner, so that the mowing device is suitable for complex terrains and the service life of the mowing device is prolonged. In one example, the first cutter disc 22 is detachably connected with the first cutter output shaft 21 through a lock nut; the second cutter head 32 is detachably connected with the second cutter output shaft 31 through a locking nut. Aiming at different operation scenes, different cutter heads can be replaced, and the defect of single cutter in the prior art is overcome. Through the cutter head that selects the vegetation adaptation with the operation scene, can improve mowing efficiency and effect.

The end of the second header assembly 30 remote from the first header assembly 20 is provided with a rope shaft 33 for installing a rope, it being understood that the rope shaft 33 is provided at both ends of the connecting frame 10. Specifically, the grass-mowing rope shaft 33 is fixedly provided with a grass-mowing rope head, and the grass-mowing rope shaft can be conveniently connected with a grass-mowing rope. One end of the grass mowing rope is bound with the grass mowing rope head, the grass mowing rope is preferably a nylon grass mowing rope, the nylon grass mowing rope has the advantages of being high in cost performance and convenient to install, the grass mowing operation requirements of special positions such as road shoulders can be met, and the operation efficiency and the effect are effectively improved.

Further, in the present embodiment, in the mowing device, the connecting frame 10 is provided with two header connecting blocks 11, wherein one header connecting block 11 is used for fixedly connecting one end of the first header assembly 20 and one end of one second header assembly 30; the other header connecting block 11 is used for fixedly connecting the other end of the first header assembly 20 and one end of the other second header assembly 30. Specifically, header connecting block 11 is the T font, including first connecting portion and the second connecting portion that mutually perpendicular connects, first connecting portion are kept away from the one end of second connecting portion with link 10 fixed connection, one side of second connecting portion with the one end of first header assembly 20 is passed through bolt fixed connection, relative opposite side with the one end of second header assembly 30 is passed through bolt fixed connection.

Further, referring to fig. 2, in the present embodiment, in the mowing device, the first header assembly 20 includes a first header 201, a first header motor mounting plate 24, a first header motor 25 and a first transmission device 26, and the first header motor 25 is fixedly connected to the first header 201 through the first header motor mounting plate 24; the first transmission device 26 is connected with the first header motor 25 and the first cutting knife output shaft 21. In this embodiment, the first header 201 is a base of the first header assembly 20, and two ends of the first header 201 are respectively bolted to the header connection blocks 11; the first header motor mounting plate 24 is connected to the first header 201 by bolts. First header motor mounting panel 24 is equipped with a plurality of slotted holes, first header motor 25 through the bolt with first header motor mounting panel 24's slotted hole fixed connection. By adjusting the position of the bolt and in the oblong hole, the fixed position of the first header motor 25 can be properly adjusted.

Further, referring to fig. 3 to 5, in the present embodiment, in the mowing device, the second header assembly 30 includes a second header 301, a second header motor mounting plate 34, a second header motor 35, and a second transmission device 36, and the second header motor 35 is fixedly connected to the second header 301 through the second header motor mounting plate 34; the second transmission device 36 is connected with the second header motor 35, the second cutting knife output shaft 31 and the grass cutting rope shaft 33. In this embodiment, the second header 301 is a base of the second header assemblies 30, wherein a left end of the second header 301 of one of the second header assemblies 30 is fixedly connected to one end of the first header 201 through the header connecting block 11, and a right end of the other second header assembly 30 is fixedly connected to the other end of the first header 201 through the header connecting block 11. The second header motor mounting plate 34 is connected to the second header 301 by bolts. Second header motor mounting panel 34 is equipped with a plurality of slotted holes, second header motor 35 through the bolt with the slotted hole fixed connection of second header motor mounting panel 34. By adjusting the position of the bolt and in the oblong hole, the fixing position of the second header motor 35 can be properly adjusted.

Further, in the present embodiment, in the grass cutting device, the first transmission device 26 and the second transmission device 36 both adopt a belt transmission manner. The first transmission device 26 comprises a plurality of first belt wheels 261 and a first transmission belt 262, the first belt wheels 261 are correspondingly connected with the first cutting knife output shaft 21, and the first belt wheels 261 are arranged on one side of the first cutting platform 201, which deviates from the first cutting knife disc 22; the first drive belt 262 connects the first header motor 25 and the first pulleys 261. Specifically, the first cutter output shafts 21 are equal in number and correspond to the first pulleys 261 one by one. The first cutter output shaft 21 and the central shaft of the corresponding first pulley 261 are in the same straight line and fixedly connected, so that when the first pulley 261 rotates, the corresponding first cutter output shaft 21 can be driven to rotate at the same rotating speed as the first pulley 261. The first driving belt 262 is engaged with the plurality of first pulleys 261 and the gear of the rotating shaft of the first header motor 25 to transmit the power of the first header motor 25 to the plurality of first cutter output shafts 21. Preferably, the first belt 262 is a double-toothed belt, which can effectively use space and reduce the length of the belt. In addition, through the fixed position of adjustment first header motor 25, can realize the belt drive function of rising that rises, prevent that the belt from skidding.

The second transmission device 36 comprises a plurality of second belt wheels 361 and a second transmission belt 362, the second cutting knife output shaft 31 and the grass mowing rope shaft 33 are respectively connected with the corresponding second belt wheels 361, and the second belt wheels 361 are arranged on one side of the second cutting platform 301, which is far away from the second cutting disk 32; the second belt 362 connects the second header motor 35 and the second pulleys 361. Specifically, the number of the second cutter output shafts 31 and the mowing cord shafts 33 is the same as that of the second pulleys 361, one second cutter output shaft 31 corresponds to one second pulley 361, and one mowing cord shaft 33 corresponds to one second pulley 361. The second cutting knife output shaft 31 and the mowing rope shaft 33 are respectively and fixedly connected with the central shaft of the corresponding second belt wheel 361 on the same straight line, so that when the second belt wheel 361 rotates, the corresponding second cutting knife output shaft 31 and the mowing rope shaft 33 can be driven to rotate at the same rotating speed as the second belt wheel 361. The second belt 362 is engaged with the plurality of second pulley 361 peripheral gears and the gear of the rotating shaft of the second header motor 35 to transmit the power of the second header motor 35 to the plurality of second cutter output shafts 31. Preferably, the second belt 362 is a double-toothed belt, which can effectively use space and reduce the length of the belt. In addition, through the fixed position of adjustment second header motor 35, can realize the belt drive function that rises, prevent that the belt from skidding.

Further, in the present embodiment, in the mowing device, a first grass combing baffle 27 is disposed between two adjacent first cutter output shafts 21 of the first header assembly 20, and a second grass combing baffle 37 is disposed between two adjacent second cutter output shafts 31 of the second header assembly 30. Specifically, the first cutter discs 22 of two adjacent first cutter output shafts 21 are arranged at two sides of the corresponding first grass combing baffle 27; the second cutter discs 32 of two adjacent second cutter output shafts 31 are arranged at two sides of the corresponding second grass combing baffle 37. When the grass combing baffle plate works, grass in a gap between two adjacent cutter heads is separated to the two sides into the area covered by the cutter heads by the grass combing baffle plate, so that the operation effect is ensured.

Further, in the present embodiment, in the mowing device, the first header assembly 20 is provided with a first protection cover 28, and the first protection cover 28 covers the first transmission 26; the second header assembly 30 is provided with a second protective cover 38, which second protective cover 38 covers the second transmission 36. Specifically, first protection cover 28 include the bottom surface and by the side that a pair of edge homonymy of bottom surface extended the formation, the side with the one end bending type installation department that the bottom surface is relative, first protection cover 28's installation department with first header 201 passes through bolt fixed connection, first protection cover 28's bottom surface with first header 201 deviates from one side of first cutter dish 22 is relative, a plurality of first pulleys 261 and the first drive belt 262 of first transmission 26 accept in first protection cover 28 with between the first header 201. The second protective cover 38 is similar to the first protective cover 28, and the detailed description refers to the description of the first protective cover 28, and therefore, the detailed description thereof is omitted. In this embodiment, the first protective cover 28 and the second protective cover 38 respectively protect the first transmission device 26 and the second transmission device 36, so as to ensure normal operation of the transmission devices, and effectively prolong the service life.

Further, in the present embodiment, in the mowing device, a motor driver is further included, and the motor driver is electrically connected to the first header motor 25 and the second header motor 35, and is configured to control the first header motor 25 and the second header motor 35. Specifically, the first header motor 25 and the second header motor 35 both adopt servo motors, the motor drive is a servo motor driver, and the motors and the motor drivers of corresponding models can be selected according to actual application scenarios. It should be noted that the working principle and connection relationship of the servo motor and the servo motor driver belong to the prior art, and are not described in detail herein. The servo motor driver controls the servo motor in three closed-loop control modes of current, speed and position, and high-precision positioning of a transmission system is achieved. In this embodiment, when the mowing device is in a non-operating (non-mowing) state, the corresponding motor current is small, and when the mowing device is in an operating state, the motor load is increased, and the current is increased. Based on different operation scenes, the motor loads are different, correspondingly, the feedback currents are also different, therefore, different motor control strategies can be set according to different operation scenes, the motor can reach the proper operation rotating speed, and the motor control device is suitable for various mowing operations and improves the operation efficiency.

The embodiment of the utility model provides a grass cutting device, the link span and the first header assembly of the device and two symmetry set up in the second header assembly fixed connection of first header assembly both ends, first header assembly is equipped with a plurality of first cutting knife output shafts and the first cutter dish of being connected with first cutting knife output shaft can dismantle, second header assembly is equipped with the second cutting knife output shaft and the second cutter dish of being connected with second cutting knife output shaft can dismantle, through changing different first cutter dish and second cutter dish, can satisfy the work demand of mowing of different scenes; in addition, a first grass combing baffle is arranged between two adjacent first cutting knife discs, and a second grass combing baffle is arranged between two adjacent second cutting knife discs, so that the existence of a mowing dead angle can be effectively prevented, and the operation effect is ensured; and a motor driver is additionally arranged, the motor driver knows the operation state of the device through the feedback motor state, and the operation efficiency is improved through setting a control strategy of the motor driver. The embodiment of the utility model provides a grass cutting device is rational in infrastructure, easily maintenance, and long service life and cost of maintenance are low.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (10)

1. A mowing device, comprising: the first header assembly is arranged between the two second header assemblies, and the first header assembly and the second header assembly are fixedly connected with the connecting frame; the first header assembly is provided with a plurality of first cutting knife output shafts and first cutting knife discs detachably connected with the first cutting knife output shafts; the second header assembly is provided with a plurality of second cutting knife output shafts and second cutting knife discs detachably connected with the second cutting knife output shafts; one end of the second header assembly, which is far away from the first header assembly, is provided with a grass mowing rope shaft used for installing a grass mowing rope.

2. A mowing apparatus according to claim 1, wherein the link carriage is provided with two header attachment blocks, one of which is adapted to fixedly attach one end of the first header assembly and one of the second header assembly; the other header connecting block is used for fixedly connecting the other end of the first header assembly and one end of the other second header assembly.

3. The mowing device as claimed in claim 1, wherein the connecting frame is of an arched truss structure.

4. The mowing device according to claim 1, wherein the first header assembly comprises a first header, a first header motor mounting plate, a first header motor, and a first transmission, the first header motor being fixedly connected to the first header via the first header motor mounting plate; the first transmission device is connected with the first header motor and the first cutting knife output shaft.

5. The mowing device according to claim 4, wherein the second header assembly comprises a second header, a second header motor mounting plate, a second header motor and a second transmission device, wherein the second header motor is fixedly connected with the second header through the second header motor mounting plate; the second transmission device is connected with the second header motor, the second cutting knife output shaft and the grass mowing rope shaft.

6. The mowing device according to claim 5, wherein the first header motor mounting plate is provided with a plurality of first oblong holes, and the first header motor is bolted to the first oblong holes of the first header motor mounting plate; the second header motor mounting panel all is equipped with a plurality of second slotted holes, the second header motor with the second header motor mounting panel second slotted hole bolted connection.

7. The mowing device according to claim 6, wherein the first transmission device comprises a plurality of first belt pulleys and a first transmission belt, the first belt pulleys are correspondingly connected with the first cutting knife output shaft, and the first belt pulleys are arranged on one side of the first header, which is far away from the first cutting knife disc; the first transmission belt is connected with the first header motor and the first belt wheels; the second transmission device comprises a plurality of second belt wheels and second transmission belts, the second cutting knife output shaft and the grass mowing rope shaft are respectively connected with the corresponding second belt wheels, and the second belt wheels are arranged on one side of the second header, which is far away from the second cutting head; the second driving belt is connected with the second header motor and the second belt wheels.

8. The mowing device according to claim 5, wherein a first grass combing baffle is arranged between two adjacent first cutter output shafts of the first header assembly, and a second grass combing baffle is arranged between two adjacent second cutter output shafts of the second header assembly.

9. A mowing apparatus according to claim 5, wherein the first header assembly is provided with a first guard housing the first transmission; the second header assembly is provided with a second protective cover, and the second protective cover covers the second transmission device.

10. The mowing device of claim 5, further comprising a motor driver electrically connecting the first header motor and the second header motor, the motor driver for controlling the first header motor and the second header motor.

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