CN210868784U - A self-propelled stubble collecting lawn mower - Google Patents

Abstract

The utility model discloses a self-propelled stubble collecting lawn mower, which comprises a frame and a gasoline engine (9) located on the frame. An output shaft of the gasoline engine (9) is connected with a first vertically arranged first A transmission shaft (27), the bottom end of the first transmission shaft (27) is provided with a cutter assembly, and the first transmission shaft (27) is connected with the second transmission shaft (26) at the front end of the lawn mower through a pulley to transmit power, and the vertical The straightly arranged second transmission shaft (26) is connected with the horizontally arranged third transmission shaft (25) through the worm gear assembly to transmit power, and the third transmission shaft (25) drives the front wheel (1) of the lawn mower through gear transmission ) to proceed. The lawn mower of the utility model operates in the mode of cooperation of a single power source and a multi-transmission mechanism, and has stable transmission, low energy consumption and lightness and portability; the grass clippings collection bag can fall off by itself when it reaches a certain weight, so as to avoid the influence of excessive grass clippings. The operation of the cutting blade also greatly reduces the labor cost of the subsequent processing of the grass clippings.

Description

A self-propelled stubble collecting lawn mower

technical field

The utility model belongs to the technical field of gardening tools, in particular to a self-propelled stubble collecting lawn mower which adopts a single power source to drive a traveling mechanism and a cutter assembly.

Background technique

The lawn mowers used are mainly divided into two categories: hand-push type and self-propelled type. Among them, walk-behind lawn mowers have high labor consumption and low efficiency, and have been gradually replaced by self-propelled lawn mowers. However, in the current self-propelled lawn mowers on the market, the power required by the walking part and the rotating part of the blade is not a single source of power. At least two motors are required to provide power, and the energy loss is large; at the same time, the collection bag is collecting grass clippings. Afterwards, excess grass clippings clog the cutting blades and tend to reduce mowing efficiency.

Utility model content

The purpose of this utility model is to solve the problems existing in the prior art, to provide a self-propelled flat stubble collecting lawn mower that adopts a single power source to drive the traveling mechanism and the cutter assembly; and the self-propelled flat stubble collecting lawn mower The grass clipping bag can automatically fall off after reaching the maximum collection capacity.

The purpose of this utility model is to be solved by the following technical solutions:

A self-propelled stubble collecting lawn mower, comprising a frame and a gasoline engine on the frame, characterized in that: the output shaft of the gasoline engine is connected with a vertically arranged first transmission shaft, the first transmission shaft The bottom end is provided with a cutter assembly and the first transmission shaft is connected with the second transmission shaft at the front end of the lawn mower through a pulley to transmit power, and the vertically arranged second transmission shaft is connected with the horizontally arranged third transmission shaft through the worm gear and worm assembly. Connected to transmit power, the third transmission shaft drives the front wheel of the lawn mower to travel through gear transmission.

The first transmission shaft passes upward through the top cover of the frame and is connected to the output shaft of the gasoline engine, and the top cover of the vehicle frame is provided with a deep groove ball bearing with a shaft shoulder capable of positioning the first transmission shaft.

The first drive shaft is provided with a small pulley located above the cutter assembly, and the small pulley is connected with the large pulley on the second drive shaft through a belt to transmit power.

Both ends of the second transmission shaft are axially positioned by deep groove ball bearings embedded in the sleeve, and the sleeve is respectively fixed on the frame top cover and the frame bottom cover through corresponding bolts, washers and nuts. , and the outer sides of both ends of the second transmission shaft are respectively provided with corresponding end caps.

The second transmission shaft is provided with a worm with an undercut, and the worm gear corresponding to the worm is located in the middle of the third transmission shaft, and the worm gear and the worm gear are axially positioned on the third transmission shaft through the shaft shoulder and the sleeve. .

The minimum diameter of the first transmission shaft is greater than 10.63 mm, the minimum diameter of the second transmission shaft is greater than 10.35 mm, and the minimum diameter of the third transmission shaft is greater than 18.4 mm.

Both ends of the third transmission shaft are respectively provided with pinions, and the pinions are fixed on both ends of the third transmission shaft through key connections. The outer side of the pinion is provided with a large gear that is connected to its internal meshing transmission, and the third transmission shaft passes through the two ends of the third transmission shaft. The meshing of the pinion and bull gear transfers power to the front wheels of the mower.

The cutter assembly includes a cutter holder and a cutting blade, the cutter holder is mounted on the bottom end of the first transmission shaft, and the cutting blade is fixed on the cutter holder by a nut bolt.

The length of the cutting edge of the cutting blade is greater than 12.5 mm.

Grass clipping collection bags are respectively provided on the two side covers of the frame, and the bag opening of the grass clipping collection bag and the grass clipping opening on the side cover of the frame are connected by a magnetic suction mechanism.

Compared with the prior art, the utility model has the following advantages:

The lawn mower of the utility model operates in the mode of cooperation of a single power source and a multi-transmission mechanism, and has stable transmission, low energy consumption, lightness and portability; two weed collection channels are respectively equipped with magnetic suction mechanisms, and grass clippings collection bags After reaching a certain weight, it can fall off by itself, so as to avoid the overfill of grass clippings and affect the operation of the cutting blade, and also greatly reduce the labor cost of subsequent processing of grass clippings.

Description of drawings

Accompanying drawing 1 is the front view structure schematic diagram of the self-propelled stubble collecting lawn mower of the utility model;

Accompanying drawing 2 is the top-view structure schematic diagram of the self-propelled flat stubble collecting lawn mower of the present utility model;

Accompanying drawing 3 is the side view structure schematic diagram of the self-propelled stubble collecting lawn mower of the utility model;

Accompanying drawing 4 is the pulley transmission and the worm gear transmission part structure schematic diagram of the present invention;

Accompanying drawing 5 is the structure schematic diagram of the gear transmission part of the utility model;

Accompanying drawing 6 is the top view structure schematic diagram of the frame part of the utility model;

Accompanying drawing 7 is the structural representation of the tool holder of the utility model;

8 is a schematic structural diagram of the cutting blade of the present invention.

Among them: 1-front wheel; 2-turbine; 3-worm; 4-large pulley; 5-end cover; 6-nut; 7-bolt; 8-washer; 9-gasoline engine; 10-cutting blade; 11-small Pulley; 12—knife holder; 13—height adjuster; 14—armrest; 15—throttle lever; 16—throttle bolt; 17—grass collection bag; 18—bearing nut; 19—wheel hub bearing; 20—small Gear; 21—large gear; 22—starter handle; 23—switch; 24—belt; 25—third drive shaft; 26—second drive shaft; 27—first drive shaft.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-8: A self-propelled stubble collecting lawn mower, including a frame and a gasoline engine 9 on the frame, a height adjuster 13 for adjusting the cutting height, a handrail 14, a throttle control lever 15, and a throttle The bolt 16, the starter handle 22, the switch 23, the output shaft of the gasoline engine 9 is connected with a vertically arranged first transmission shaft 27, the bottom end of the first transmission shaft 27 is provided with a cutter assembly and the first transmission shaft 27 passes through the pulley It is connected with the second transmission shaft 26 at the front end of the lawn mower to transmit power. The vertically arranged second transmission shaft 26 is connected with the horizontally arranged third transmission shaft 25 through the worm gear assembly to transmit power. The third transmission shaft 25 The front wheel 1 of the lawn mower is driven by gear transmission.

In the transmission part, as shown in Figures 1-5, the first transmission shaft 27 passes upwards through the top cover of the frame and is connected to the output shaft of the gasoline engine 9, and the top cover of the frame is provided with a Positioned deep groove ball bearing with shaft shoulder; on the first drive shaft 27 is provided a small pulley 11 located above the cutter assembly, the small pulley 11 is connected to the large pulley 4 on the second drive shaft 26 through the belt 24 Connect to transmit power. Both ends of the second transmission shaft 26 are axially positioned by deep groove ball bearings embedded in the sleeve, and the sleeve is respectively fixed on the top cover and the bottom of the frame through corresponding bolts 7 , washers 8 and nuts 6 Cover, and the outer sides of both ends of the second transmission shaft 26 are respectively provided with corresponding end covers 5; the second transmission shaft 26 is provided with a worm 3 with an undercut, and the worm wheel 2 corresponding to the worm 3 is located in the third In the middle of the transmission shaft 25, the worm gear 2 is axially positioned on the third transmission shaft 25 through the shaft shoulder and the sleeve. Both ends of the third transmission shaft 25 are respectively provided with pinion gears 20, and the pinion gears 20 are fixed on both ends of the third transmission shaft 25 by key connection. The outer side of the pinion gear 20 is provided with a large gear 21 which is connected to its internal meshing transmission. The three drive shafts 25 transmit power to the front wheel 1 of the lawn mower through the meshing of the pinion 20 and the large gear 21; and the front wheel 1 is provided with a hub bearing 19 and a bearing nut 18 for positioning the hub bearing 19. The hub bearing 19 The shaft provided above can transmit the power of the front wheel 1 to the rear wheel. For the stability of the multi-transmission mechanism, the minimum diameter of the first transmission shaft 27 is larger than 10.63 mm, the minimum diameter of the second transmission shaft 26 is larger than 10.35 mm, and the minimum diameter of the third transmission shaft 25 is larger than 18.4 mm.

As shown in FIG. 6 , grass clippings collection bags 17 are respectively provided on the two side covers of the frame, and the bag opening of the grass clippings collection bag 17 is connected to the grass clipping opening on the side cover of the frame through a magnetic suction mechanism. When connected, the size of the cuttings discharge opening is 117×98mm, the extension length is 44mm, and the angle of the upper surface of the cuttings discharge opening is 8°. Generally, the maximum collection amount of the grass clipping collection bag 17 can be set to 5Kg, and it will fall off automatically after reaching the maximum collection amount.

As shown in Figures 7-8, the cutter assembly includes a cutter holder 12 and a cutting blade 10. The cutter holder 12 is mounted on the bottom end of the first transmission shaft 27, and the cutting blade 10 is fixed on the cutter holder 12 by nut bolts. The length of the cutting edge of the blade 10 is greater than 12.5 mm.

When the self-propelled stubble collecting lawn mower of the present utility model is used, the gasoline engine 9 drives the first drive shaft 27 to rotate, and then the first drive shaft 27 drives the cutter holder 12 and the cutting blade 10 to rotate and cut grass; The shaft 27 is powered by the gasoline engine 9 and is transmitted to the second transmission shaft 26 through the pulley, and the worm gear mechanism on the second transmission shaft 26 transmits the power to the third transmission shaft 25. The third transmission shaft 25 passes through the inner meshing pinion 20 And the big gear 21 transmits power to the front wheel 1, and finally realizes the self-propelling of the lawn mower; at the same time, the grass clippings collection bag 17 for collecting waste grass clippings is installed at the grass clipping opening of the side cover of the frame through the magnetic suction mechanism. The collected waste grass will fall off automatically when it reaches a certain weight.

The lawn mower of the utility model operates in the mode of cooperation of a single power source and a multi-transmission mechanism, and has stable transmission, low energy consumption, lightness and portability; two weed collection channels are respectively equipped with magnetic suction mechanisms, and grass clippings collection bags 17 After reaching a certain weight, it can fall off by itself, so as to avoid the overfilling of grass clippings and affect the operation of the cutting blade, and also greatly reduce the labor cost of subsequent processing of grass clippings.

The above embodiments are only to illustrate the technical idea of the present utility model, and cannot limit the protection scope of the present utility model. Any changes made on the basis of the technical solution according to the technical idea of the present utility model shall fall into the scope of the present utility model. It is within the scope of protection of the new model; the technology not involved in the present invention can be realized by the existing technology.

Claims (10)

1. The utility model provides a self-propelled stubble-cutting collection lawn mower, includes the frame and is located gasoline engine (9) on the frame, its characterized in that: the output shaft of gasoline engine (9) on be connected with first transmission shaft (27) of vertical setting, the bottom of first transmission shaft (27) sets up cutter unit spare and first transmission shaft (27) are connected with the second transmission shaft (26) of lawn mower front end through the band pulley and are in order to transmit power, the second transmission shaft (26) of vertical setting are connected with the third transmission shaft (25) of level setting through worm gear subassembly and are in order to transmit power, third transmission shaft (25) are through gear drive power mower's front wheel (1) march.

2. The self-propelled stubble-cutting harvesting mower of claim 1, characterized in that: the first transmission shaft (27) penetrates out of the frame top cover upwards to be connected with an output shaft of the gasoline engine (9), and the frame top cover is provided with a deep groove ball bearing with a shaft shoulder, and the deep groove ball bearing can be used for positioning the first transmission shaft (27).

3. The self-propelled stubble-cutting harvesting mower of claim 1, characterized in that: the first transmission shaft (27) is provided with a small belt wheel (11) positioned above the cutter assembly, and the small belt wheel (11) is connected with a large belt wheel (4) on the second transmission shaft (26) through a belt (24) to transmit power.

4. The self-propelled stubble-cutting harvesting mower of claim 1 or 3, characterized in that: the two ends of the second transmission shaft (26) are axially positioned through deep groove ball bearings embedded in sleeves respectively, the sleeves are fixed on a frame top cover and a frame bottom cover through corresponding bolts (7), washers (8) and nuts (6), and corresponding end covers (5) are arranged on the outer sides of the two ends of the second transmission shaft (26) respectively.

5. The self-propelled stubble-cutting harvesting mower of claim 1, characterized in that: the second transmission shaft (26) is provided with a worm (3) with a tool withdrawal groove, a worm wheel (2) corresponding to the worm (3) is positioned in the middle of the third transmission shaft (25), and the worm wheel (2) is axially positioned on the third transmission shaft (25) through a shaft shoulder and a sleeve.

6. The self-propelled stubble-cutting harvesting mower of claim 1, characterized in that: the minimum diameter of the first drive shaft (27) is greater than 10.63mm, the minimum diameter of the second drive shaft (26) is greater than 10.35mm and the minimum diameter of the third drive shaft (25) is greater than 18.4 mm.

7. The self-propelled stubble-cutting harvesting mower of claim 1, characterized in that: and the two ends of the third transmission shaft (25) are respectively provided with a pinion (20), the pinions (20) are fixedly connected with the two ends of the third transmission shaft (25) through key connection, the outer side of each pinion (20) is provided with a large gear (21) in transmission connection with the pinion in an inner meshing manner, and the third transmission shaft (25) transmits power to the front wheel (1) of the mower through the meshing of the pinions (20) and the large gears (21).

8. The self-propelled stubble-cutting harvesting mower of claim 1, characterized in that: the cutter assembly comprises a cutter fixer (12) and a cutting blade (10), wherein the cutter fixer (12) is installed at the bottom end of the first transmission shaft (27), and the cutting blade (10) is fixed on the cutter fixer (12) through a nut and a bolt.

9. The self-propelled stubble-cutting harvesting mower of claim 8, wherein: the cutting edge length of the cutting blade (10) is greater than 12.5 mm.

10. The self-propelled stubble-cutting harvesting mower of claim 1, characterized in that: the two side covers of the frame are respectively provided with a grass chip collecting bag (17), and the bag opening of the grass chip collecting bag (17) is connected with a grass chip discharging opening on the side cover of the frame through a magnetic suction mechanism.

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