阅读说明：本技术 一种可以在发动机运行时自动换刀的割草机 (Mower capable of automatically changing cutter during engine running ) 是由 叶英 于 2020-07-24 设计创作，主要内容包括：本发明公开了一种可以在发动机运行时自动换刀的割草机,包括连接杆,所述连接杆固定连接上壳体和下壳体,所述上壳体和下壳体之间设有刀库转向机构,所述刀库转向机构包括有和内传动轴固定连接的内转动轮盘,所述内传动轴与所述连接杆转动连接,所述内转动轮盘设有六个开口向下的内连接腔,本发明分为直刀和甩刀,没有障碍物时直刀切割平整,切割速度快,但当碰到有障碍物的环境时容易受到损伤,这时可以更换为甩刀工作,甩刀可以遇到障碍物及时回缩,保护刀片和曲轴,减低损害,本发明可以实现在发动机不停止工作的条件下,通过改变刀轴的旋转方向,来完成直刀和甩刀的转换来适应不同的工作环境,节约人为换刀的时间,提高工作效率。(The invention discloses a mower capable of automatically changing knives when an engine runs, which comprises a connecting rod, wherein the connecting rod is fixedly connected with an upper shell and a lower shell, a tool magazine steering mechanism is arranged between the upper shell and the lower shell, the tool magazine steering mechanism comprises an inner rotating wheel disc fixedly connected with an inner transmission shaft, the inner transmission shaft is rotatably connected with the connecting rod, and the inner rotating wheel disc is provided with six inner connecting cavities with downward openings. The time for manual tool changing is saved, and the working efficiency is improved.)

1. The utility model provides a can be when the lawn mower of engine operation automatic tool changing, includes the connecting rod, its characterized in that: the connecting rod is fixedly connected with the upper shell and the lower shell, a tool magazine steering mechanism is arranged between the upper shell and the lower shell, the tool magazine steering mechanism comprises an inner rotating wheel disc fixedly connected with an inner transmission shaft, the inner transmission shaft is rotatably connected with the connecting rod, the internal rotating wheel disc is provided with six internal connecting cavities with downward openings, two steering rolling balls which are symmetrical by taking the connecting rod as a center are arranged in the internal connecting cavities, each steering rolling ball is fixedly connected with a steering connecting rod at one end far away from the internal rotating wheel disc, the steering connecting rod is fixed on a steering wheel disc, the steering wheel disc is arranged on the inner transmission shaft through a sliding bearing, an outer transmission shaft which is rotatably connected with the lower shell is arranged on the lower side of the inner steering wheel disc, an outer steering wheel disc is fixed on the outer transmission shaft, and six outer connecting cavities with upward openings are formed in the outer end of the outer steering wheel disc; a steering mechanism is arranged on the lower side of the inner transmission shaft, the steering mechanism comprises a gear fixedly connected with the inner transmission shaft, the gear is meshed with a turning gear, the turning gear is fixedly connected to a fixed connecting rod, and the turning gear is meshed with an inner gear fixed on the inner side of the outer transmission shaft; the upper casing is internally provided with a cavity with a downward opening, the lower side of the cavity is provided with a tool changing mechanism, the tool changing mechanism comprises a tool magazine casing, the tool magazine casing is internally provided with the cavity, the cavity is internally provided with two straight tools which are bilaterally symmetrical by taking a connecting rod as a center, the straight tools are fixedly connected with a pull rope, the pull rope is fixedly wound on a steering wheel disc, the straight tools are also fixedly connected with a telescopic spring, the telescopic spring is fixed on a straight tool steering wheel disc, the inner side of the straight tool steering wheel disc is provided with two annular grooves, each annular groove is embedded with a rolling ball, the rolling ball is rotatably connected on a straight tool transmission rod, the straight tool transmission rod is fixedly connected with the steering wheel disc, each lower side is provided with a flail tool, the flail tool is fixedly connected on the flail tool wheel disc, the lower end of the flail tool wheel disc is provided with two rolling grooves, the flail knife transmission rod is fixedly connected with the inner wall of the lower side of the cavity.

2. A lawnmower with automatic tool changing during engine operation according to claim 1, wherein: the transmission mechanism is characterized in that a bevel gear is fixedly arranged at the upper end of the inner transmission shaft, the bevel gear is meshed with the transmission bevel gear, the transmission gear is fixedly connected with a transmission rod, the transmission rod is rotatably connected with the upper shell, the transmission rod transmits the torque of an engine, the bevel gear is fixedly connected with the inner transmission shaft, the inside of the bevel gear is fixedly connected with a bearing, the bearing is fixedly connected onto a connecting rod, the inner transmission shaft is slidably connected with a sliding bearing, and the sliding bearing is fixed onto a transmission wheel disc.

3. A lawnmower with automatic tool changing during engine operation according to claim 1, wherein: the utility model discloses a cavity, including cavity, bracing piece, electromagnet center, first magnet of slide bar lower extreme fixed connection, first magnet lower extreme fixed connection decelerator, two electro-magnets of casing up end right side fixed connection down, casing up end right side fixedly connected with deceleration electromagnet down, be equipped with the sliding connection pole in the deceleration electromagnet, sliding connection pole upper end fixedly connected with second magnet, the second magnet upper end is fixed with the reduction gear.

4. A lawnmower with automatic tool changing during engine operation according to claim 1, wherein: the utility model discloses a quick-witted tool magazine, including tool magazine, flail knife, casing up end right side down is fixed with time relay, the tool magazine lower extreme is equipped with annular magnet, the flail knife is the rubber material, and the variability is bent, casing up end right side down is fixed with time relay.

Technical Field

The invention relates to the related field of greening, in particular to a mower capable of automatically changing a cutter when an engine runs.

Background

The mower is used for cutting weeds, trimming lawns, vegetations and other mechanical tools, and the output shaft of the engine is provided with the blade, and the blade is greatly improved in speed by utilizing the high-speed rotation of the engine, so that the operation time of weeders is saved, and a large amount of manpower resources are reduced. Because the working environment of lawn mower is different, so need under different environment, carry out the tool changing and reduce all ring edge borders just harm to mowing, and current lawn mower all needs the people for the tool changing, and the dismouting is troublesome, reduces work efficiency.

Disclosure of Invention

The invention aims to solve the technical problem of providing a mower capable of automatically changing the cutter when an engine runs, and overcoming the problems of inconvenience in manual cutter changing and the like.

The invention is realized by the following technical scheme.

The invention relates to a mower capable of automatically changing tools when an engine runs, which comprises a connecting rod, wherein the connecting rod is fixedly connected with an upper shell and a lower shell, a tool magazine steering mechanism is arranged between the upper shell and the lower shell, the tool magazine steering mechanism comprises an inner rotating wheel disc fixedly connected with an inner transmission shaft, the inner transmission shaft is rotatably connected with the connecting rod, the inner rotating wheel disc is provided with six inner connecting cavities with downward openings, two steering rolling balls which are symmetrical by taking the connecting rod as a center are arranged in the inner connecting cavities, each steering rolling ball is fixedly connected with a steering connecting rod at one end far away from the inner rotating wheel disc, the steering connecting rod is fixed on the steering wheel disc, the steering wheel disc is arranged on the inner transmission shaft through a sliding bearing, the lower side of the inner steering wheel disc is provided with an outer transmission shaft rotatably connected with the lower shell, and an outer steering wheel disc is fixed on the outer, the outer end of the outer turning wheel disc is provided with six outer connecting cavities with upward openings; a steering mechanism is arranged on the lower side of the inner transmission shaft, the steering mechanism comprises a gear fixedly connected with the inner transmission shaft, the gear is meshed with a turning gear, the turning gear is fixedly connected to a fixed connecting rod, and the turning gear is meshed with an inner gear fixed on the inner side of the outer transmission shaft; the upper casing is internally provided with a cavity with a downward opening, the lower side of the cavity is provided with a tool changing mechanism, the tool changing mechanism comprises a tool magazine casing, the tool magazine casing is internally provided with the cavity, the cavity is internally provided with two straight tools which are bilaterally symmetrical by taking a connecting rod as a center, the straight tools are fixedly connected with a pull rope, the pull rope is fixedly wound on a steering wheel disc, the straight tools are also fixedly connected with a telescopic spring, the telescopic spring is fixed on a straight tool steering wheel disc, the inner side of the straight tool steering wheel disc is provided with two annular grooves, each annular groove is embedded with a rolling ball, the rolling ball is rotatably connected on a straight tool transmission rod, the straight tool transmission rod is fixedly connected with the steering wheel disc, each lower side is provided with a flail tool, the flail tool is fixedly connected on the flail tool wheel disc, the lower end of the flail tool wheel disc is provided with two rolling grooves, the flail knife transmission rod is fixedly connected with the inner wall of the lower side of the cavity.

Preferably, a bevel gear is fixedly arranged at the upper end of the inner transmission shaft, the bevel gear is meshed with the transmission bevel gear, the transmission gear is fixedly connected with the transmission rod, the transmission rod is rotatably connected with the upper shell, the transmission rod transmits the torque of the engine, the bevel gear is fixedly connected with the inner transmission shaft, the inner part of the bevel gear is fixedly connected with a bearing, the bearing is fixedly connected to a connecting rod, the inner transmission shaft is slidably connected with a sliding bearing, and the sliding bearing is fixed on a transmission wheel disc.

Preferably, cavity left side inner wall fixed connection bracing piece, bracing piece right-hand member fixed connection electro-magnet, there is the slide bar at the electro-magnet center, the first magnet of slide bar lower extreme fixed connection, first magnet lower extreme fixed connection decelerator, two electro-magnets of casing up end right side fixed connection down, casing up end right side fixedly connected with speed reduction electro-magnet down, be equipped with the sliding connection pole in the speed reduction electro-magnet, sliding connection pole upper end fixedly connected with second magnet, the second magnet upper end is fixed with the reduction gear.

Preferably, the lower end of the tool magazine is provided with an annular magnet, the flail knife is made of rubber, the flail knife is bent in a variable mode, and the right side of the upper end face of the lower shell is fixed with a time relay.

The invention has the beneficial effects that: the invention is divided into straight knives and flail knives, the straight knives cut smoothly when there is no obstacle, the cutting speed is fast, but the straight knives are easy to be damaged when meeting the environment with obstacle, at this time, the flail knives can be changed into flail knives to work, the flail knives can retract in time when meeting the obstacle, the blades and the crankshafts are protected, the damage is reduced, the invention can realize that under the condition that the engine does not stop working, the conversion of the straight knives and the flail knives is completed by changing the rotating direction of the cutter shaft to adapt to different working environments, the time for artificially changing knives is saved, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of section A-A of FIG. 1 in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of section B-B of FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic view of section C-C in FIG. 1 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The mower capable of automatically changing knives during engine operation, which is described with reference to fig. 1-4, comprises a connecting rod 12, wherein the connecting rod 12 is fixedly connected with an upper shell 11 and a lower shell 17, a tool magazine steering mechanism 82 is arranged between the upper shell 11 and the lower shell 17, the tool magazine steering mechanism 82 comprises an internal rotating wheel disc 37 fixedly connected with an internal transmission shaft 31, the internal transmission shaft 31 is rotatably connected with the connecting rod 12, the internal rotating wheel disc 37 is provided with six internal connection cavities 42 with downward openings, two steering rolling balls 41 which are symmetrical by taking the connecting rod 12 as a center are arranged in the internal connection cavities 42, each steering rolling ball 41 is fixedly connected with a steering connecting rod 38 at one end far away from the internal rotating wheel disc 37, the steering connecting rod 38 is fixed on the steering wheel disc 32, and the steering wheel disc 32 is arranged on the internal transmission shaft 31 through a sliding bearing 36, an outer transmission shaft 45 rotatably connected with the lower shell 17 is arranged on the lower side of the inner steering wheel disc 37, an outer steering wheel disc 44 is fixed on the outer transmission shaft 45, and six outer connecting cavities 43 with upward openings are formed in the outer end of the outer steering wheel disc 44; a steering mechanism 81 is arranged on the lower side of the inner transmission shaft 31, the steering mechanism 81 comprises a gear 47 fixedly connected with the inner transmission shaft 31, the gear 47 is meshed with a direction-changing gear 49, the direction-changing gear 49 is fixedly connected to a fixed connecting rod 48, and the direction-changing gear 49 is meshed with an inner gear 46 fixed on the inner side of the outer transmission shaft 45; go up to be equipped with cavity 10 that the opening is down in the casing 11, cavity 10 downside has tool changing mechanism 80, tool changing mechanism 80 is including tool magazine casing 59, there is cavity 51 in the tool magazine casing 59, it is equipped with two straight sword 23 to use connecting rod 12 as central bilateral symmetry in the cavity 51, straight sword 23 and stay cord 33 fixed connection, stay cord 33 fixed winding is in turn to on the rim plate 32, straight sword 23 still with expanding spring 54 fixed connection, expanding spring 54 is fixed on straight sword turns to rim plate 34, straight sword turns to rim plate inboard has two ring channels 61, every the roll ball 62 has been inlayed in the ring channel 61, roll ball 62 rotates to be connected on straight sword transfer line 35, straight sword transfer line 35 and turn to rim plate 32 fixed connection, every the 23 downside is equipped with a flail 56, flail 56 fixed connection is on flail rim plate 52, the lower end of the flail wheel disc 52 is provided with two rolling grooves 55, rolling balls 39 are embedded in the rolling grooves 55, the rolling balls 39 are rotatably connected with a flail transmission rod 40, and the flail transmission rod 40 is fixedly connected with the inner wall of the lower side of the cavity 51.

Advantageously, a bevel gear 29 is fixedly arranged at the upper end of the inner transmission shaft 31, the bevel gear 29 is meshed with the transmission bevel gear 13, the transmission gear 13 is fixedly connected with the transmission rod 15, the transmission rod 15 is rotatably connected with the upper shell 11, the transmission rod 15 transmits the torque of the engine, the bevel gear 29 is fixedly connected with the inner transmission shaft 31, the bevel gear 29 is fixedly connected with a bearing 30 inside, the bearing 30 is fixedly connected with the connecting rod 12, the inner transmission shaft 31 is slidably connected with a sliding bearing 36, and the sliding bearing 36 is fixed on the transmission wheel disc 32.

Beneficially, the inner wall of the left side of the cavity 10 is fixedly connected with a supporting rod 18, the right end of the supporting rod 18 is fixedly connected with an electromagnet 63, the center of the electromagnet 63 is provided with a sliding rod 20, the lower end of the sliding rod 20 is fixedly connected with a first magnet 22, the lower end of the first magnet 22 is fixedly connected with a speed reducer 21, the right side of the upper end face of the lower shell 17 is fixedly connected with two electromagnets 28, the right side of the upper end face of the lower shell 17 is fixedly connected with a speed reducing electromagnet 64, a sliding connecting rod 26 is arranged in the speed reducing electromagnet 64, the upper end of the sliding connecting rod 26 is fixedly connected with a second magnet 27, and the upper end of the.

Advantageously, the lower end of the tool magazine 59 is provided with a ring magnet 53, the flail knife 56 is made of rubber and is bent in a variable manner, and a time relay 58 is fixed to the right side of the upper end face of the lower shell 17.

The using method comprises the following steps: in the initial state, the spring 54 is in a compressed state, the pull rope 33 is wound on the steering wheel disc 32, and the electromagnet 28 is electrified to repel the annular magnet 53 to drive the tool magazine to move upwards; when a barrier is encountered in the mowing process, the transmission shaft 15 drives the transmission bevel gear 13 to rotate clockwise; the transmission bevel gear 13 drives the bevel gear 29 to rotate clockwise, the bevel gear 29 drives the inner transmission shaft 31 to rotate clockwise, the inner transmission shaft 31 is fixedly connected with the lower end gear 47, the gear 47 is meshed with the steering gear 49, the steering gear 49 is meshed with the inner gear 46, the inner gear 46 is fixedly connected to the outer transmission shaft 45 so as to drive the outer steering shaft to rotate anticlockwise, the inner transmission shaft 31 drives the inner transmission wheel disc 37 to rotate clockwise, at the moment, the inner transmission wheel disc 37 is connected with the rolling ball 36 of the transmission wheel disc 32 and the steering connecting rod 38 so as to drive the transmission wheel disc 32 to rotate clockwise, the steering wheel disc 38 drives the straight knife connecting rod 35 to rotate clockwise so as to drive the straight knife transmission wheel disc 34 to rotate clockwise, the straight knife storage 59 is driven to rotate clockwise by the straight knife disc 34, at the moment, the pull rope 33 is wound on the transmission wheel disc 32, the straight, the tool magazine 59 rotates clockwise to drive the flail knife transmission rod 40 and the rolling ball 39 to rotate clockwise so as to drive the flail knife wheel disc 52 and the flail knife 56 to rotate clockwise; when the grass cutting field is flat and needs to be changed and the efficiency is improved, the magnetic pole of the electromagnet 28 is changed by pressing the switch, the annular magnet 53 is attracted to drive the tool magazine 59 to move downwards, the time relay 58 is started, the electromagnet 64 works, the speed reducer 65 is pushed to move upwards to decelerate the tool magazine 59 by repulsive force, the time relay 58 is powered off after a period of time, the electromagnet 64 stops working, the tool magazine 59 continues to descend until the rolling ball 41 falls on the upper end surface of the outer transmission wheel disc 44, when the rolling ball 41 rolls on the cavity 43 of the outer transmission wheel disc 44, the rolling ball 41 falls into the cavity 43, the outer transmission wheel disc 45 drives the rolling ball 41 and the transmission rod 38 to rotate anticlockwise, the transmission wheel disc 32 rotates anticlockwise, the pull rope 33 loses the acting force for pulling the straight knife 23, the spring 54 restores to drive the straight knife 23 to extend, when the straight knife connecting rod slides to the limit position of the, thereby driving the tool magazine 59 to rotate anticlockwise, the tool magazine 59 drives the flail connecting rod 40 and the rolling ball 39 to roll in the groove 55, at the moment, the speed of the tool magazine 59 is far higher than that of the flail 56, the flail 56 is clamped by the tool magazine 59, and the flail 56 deforms and bends and is retracted into the tool magazine to complete the tool changing action.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.