CN207151208U - A kind of gardening mower - Google Patents

Abstract

A kind of gardening mower is the utility model is related to, belongs to agricultural test facilities technical field.The machine includes bottom-open, the dish type case of top installation support frame, the foliaceous cutter that vertical rotating shaft in case is radially extended by height-regulating device installation, the side of case is tangentially extending to be gone out to guide the kuppe of air-flow towards side top, and the outlet direction of kuppe can be set in the collecting bag of support frame；The upper end of vertical rotating shaft positioned at case upper gear box and the power input device radially extended by being connected；Side of the top of case away from power input device is by cantilever shalving equipped with support universal wheel.The utility model is compact-sized, compact, function is complete, traction is convenient, therefore application easy to spread.

Description

A garden lawn mower

technical field

The utility model relates to a lawnmower, in particular to a gardening lawnmower, which belongs to the technical field of garden machinery.

Background technique

According to the applicant's knowledge, most of the domestic gardening lawn mowers are imported from abroad. The machines are generally bulky and expensive, not suitable for the national conditions, and difficult to use, maintain and repair. The self-developed horticultural lawn mower has a single operation function and weak adaptability. It mainly has the disadvantages of poor grass quality and lack of grass collection function, and the power platform has a large size and weight, heavy operation, low utilization rate, and average power reserve per mu. Therefore, it is difficult to practically promote and apply.

As a result, farmers and herdsmen seriously lack suitable lawn mowing machinery and equipment, resulting in increased lawn trimming costs, low orchard yields, high yields but poor harvests or high yields and poor harvests.

Contents of the invention

The purpose of this utility model is to propose a garden lawn mower that is small in size, high in grass quality, and can be conveniently equipped with a grass collection device in view of the shortcomings of the above-mentioned prior art, so as to provide a garden lawn mower suitable for national conditions. machine, so that it can be practically promoted and applied.

In order to achieve the above purpose, the basic technical solution of the gardening lawn mower of the present invention is as follows: a disc-shaped casing with an open bottom and a support frame installed above, the vertical shaft in the casing is installed with a radially extending shaft through the height adjustment device. A blade-shaped cutting knife, one side of the casing tangentially extends out of a shroud that guides the airflow upwards, and the outlet of the shroud faces a collection bag that can be set on the support frame; the upper end of the vertical shaft passes through The transmission box located on the casing is in transmission connection with the radially extending power input device; the side of the upper part of the casing away from the power input device is equipped with supporting universal wheels through the cantilever frame.

When working, the power input device of the utility model gardening lawnmower is connected with the power output transmission of power sources such as a small diesel engine with wheels. After starting, the cutting knife can be driven to mow the grass, and the cut grass can be cut before being output. The high-speed cutting knife is cut several times, forming small pieces that meet the quality requirements of the broken grass, and then quickly gathers to the side of the casing under the action of the centrifugal force generated by the high-speed rotation of the cutting knife, and the high-speed rotation of the cutting knife is similar to a fan. The wind force sends the broken grass along the collection hood, which can be directly output and sprinkled from the cover opening to the outward-facing deflector, or adjusted from the cover opening to the inward deflector to guide the collection bag hanging on the collection bag support frame collect. The utility model has the advantages of compact structure, small size, complete functions and convenient traction, so it is easy to popularize and apply.

The further improvement of the utility model is that an indexable guide cover is installed above the outlet of the guide cover.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a schematic perspective view of the three-dimensional structure of the embodiment in Fig. 1 .

FIG. 4 is a schematic perspective view of the three-dimensional structure of the embodiment of FIG. 1 from another perspective.

Fig. 5 is a schematic diagram of the structure of the cutting knife in the embodiment of Fig. 1 .

FIG. 6 is a top view of FIG. 5 .

FIG. 7 is an enlarged side view of FIG. 5 .

Fig. 8 is a schematic perspective view of the three-dimensional structure of the height adjustment device of the embodiment in Fig. 1 .

FIG. 9 is a sectional view of FIG. 10 .

Fig. 10 is a schematic structural view of the height-adjusting device on the casing of the embodiment in Fig. 1 .

Detailed ways

Embodiment one

The gardening lawnmower of this embodiment is shown in Figure 1 to Figure 4, the bottom of disc-shaped casing 6 is open, and the support frame 1 of frame mechanism is installed above, and the vertical frame in the center of casing 6 is supported by support bearing 6-1. The blade-shaped cutting knife 5 that radially extends is installed to rotating shaft 4-1 by height-adjusting device 4. The specific structure of the cutting knife 5 is shown in Figures 5 to 7. The sheet-like main body 5-1 in the middle, the reversely twisted rotor 5-2 at both ends and the hook-shaped cutter head 5-2 fixed at the end of the rotor 5-2 3 composition. When working, the cutting knife rotates at high speed to mow grass, and at the same time generates axial wind force.

The specific structure of the height adjustment device 4 is shown in Figures 8 to 10, including a bearing sleeve 4-2 that forms a vertical movement pair with the vertical shaft 4-1 through a spline, and the bearing sleeve 4-2 is passed through a ball bearing 4. -4 and the shift fork sleeve 4-3 constitute an axially constrained rotary pair, the bottom of which is fixedly connected to the cutting knife 5, and the top of the cutting knife 5 is fixedly connected to the disc-shaped cutting cover 4-7, which can not only block and protect The mechanism of the height adjustment device can cooperate with the casing to form the required annular swirl space. Both sides of the shift fork cover 4-3 respectively extend out the cylindrical boss 4-a of the moving pair with the horizontal chute of the shift fork 4-5, and one end of the shift fork 4-5 is hinged on the In the case 6, the hinged position of the shift fork 4-5 extends obliquely upwards with a height-adjusting handle 4-8 with an elastic pin shifting and limiting structure, and the arc-shaped adjustment seat 8 is fixed on the case 6, and the adjustment seat 8 It has a plurality of gear holes matched with elastic pins. Therefore, the height-adjusting handle can be easily manipulated, and the shift fork sleeve is driven to drive the bearing sleeve and the cutting knife to be raised and lowered as required by leverage, and then fixed at a corresponding gear position. Of course, the height adjustment device can also adopt other structures, such as adopting spiral height adjustment and the like.

One side of the casing 6 radially extends an expanding arc 6-r, and the end of the expanding arc 6-r tangentially extends out a shroud 2 that guides the air flow upwards, and the outlet of the shroud 2 can be placed on the Collection bag for support frame 1. In this way, the broken grass cut by the cutter rotates and gathers towards the edge of the casing under the action of centrifugal force. When the radius of gyration at the end of the expanding arc becomes smaller, and the tangential direction creates a diversion space toward the side and upwards, it is easier to enter the shroud . An indexable guide cover 9 is installed above the outlet of the diversion cover 2. When the collection bag is set on the support frame 1, the guide cover can cooperate with the guide cover to guide the broken grass into the collection bag without the collection bag When running, the guide cover can guide the shredded grass output by the guide cover to one side of the machine and sprinkle it on the field.

The upper end of the vertical rotating shaft 4-1 meshes with the power output end of the transmission box 3 located on the casing 6 through the bevel gear, and the power input end of the transmission box 3 is used for transmission connection with the tractor power input device extending radially. The upper part of the casing 6 is equipped with a pair of supporting universal wheels 7 through a cantilever frame away from the side of the power input device, so the manipulation is flexible and convenient.

The test proves that the gardening mower of the present embodiment has the following characteristics:

1. The quality of grass cutting is good: the cutting knife rotates at a high speed of 2800r/min, and the cut grass is cut several times to form uniform small pieces with a diameter of about 3mm;

2. Good collection effect: the broken grass gathers together under the centrifugal action generated by the high-speed rotation of the cutting knife, and the high-speed rotation of the rotor with an inclination angle of 150° of the cutting knife produces axial flow wind force similar to a fan, so that the broken grass enters the shroud and is collected by the collection bag collect;

3. High utilization rate of the platform: there is only one input shaft, so the traction power platform with small size and weight can be selected, and the matching power can be selected according to the working conditions, so the utilization rate is high.

Claims (7)

1. A gardening lawn mower, characterized in that: comprise a disc-shaped casing with an open bottom and a support frame installed above, the vertical rotating shaft in the casing is installed with a radially extending blade-shaped cutting knife by a height adjustment device, One side of the casing extends tangentially out of a shroud that guides the airflow upwards, and the outlet of the shroud faces a collection bag that can be placed on the support frame; The box is in transmission connection with the radially extending power input device; the side of the upper part of the casing away from the power input device is equipped with supporting universal wheels through a cantilever frame. 2. The gardening lawnmower according to claim 1, characterized in that: the height adjustment device includes a bearing sleeve that forms a vertical movement pair with the vertical rotating shaft, and the bearing sleeve and the shift fork sleeve form an axially constrained joint. As for the rotary pair, the two sides of the shift fork sleeve respectively extend out to form a boss of the moving pair with the horizontal slide groove of the shift fork, and one end of the shift fork is hinged in the casing. 3. The gardening lawnmower according to claim 2, characterized in that: the hinge support of the shift fork extends obliquely upward with a height-adjusting handle with a gear-adjusting and limiting structure, and an arc-shaped handle is fixed on the cover. The adjustment seat has a plurality of gear holes on the adjustment seat. 4. The gardening lawnmower according to claim 1, 2 or 3, characterized in that: one side of the housing radially extends out from an expanding arc, and the end of the expanding arc extends tangentially toward the side A shroud that directs the airflow above. 5 . The gardening lawnmower according to claim 4 , wherein the cutting blade is composed of a sheet-shaped main body in the middle, a rotor with opposite twists at both ends, and a hook-shaped cutter head fixed at the end of the rotor. 6 . 6. The gardening lawn mower according to claim 5, characterized in that: an indexable guide cover is installed above the outlet of the guide cover. 7. The gardening lawnmower according to claim 6, characterized in that: a disk-shaped cutting cover is fixed above the cutting knife.