CN206212582U - A kind of contour plantation hillside fields mini-tiller of use leading screw and nut mechanism regulation driving wheel - Google Patents

Abstract

The utility model provides a micro-cultivator for contour planting and sloping land using a screw nut mechanism to adjust the driving wheel, which includes a frame and a pair of wheels arranged below the frame. The wheels are driven by a driving device arranged on the frame. The driving device includes a transmission bridge and a gear transmission box. There are output shafts at both ends of the gear transmission box, and an output helical gear is arranged on the output shaft. A screw sleeve is hinged in the middle of the rocker arm of the driving wheel. The threaded threaded screw of the sleeve, the screw and the screw sleeve constitute the screw nut mechanism, and the helical gear is used to realize the screw nut mechanism to drive the driving wheel rocker to rotate relative to the transmission bridge to realize the adjustment of the wheel height, and the frame There is a rotary tiller on the rear side. When cultivating on the contour line of the micro tillage machine in this design, the left and right driving wheels are adjusted according to the slope of the mountain to keep the machine body level and prevent the machine from turning over. At the same time, the rotary tiller that can rotate with the slope angle is used for rotary tillage, which not only improves the work efficiency but also ensures the quality of the cultivated land.

Description

A Contour Planting Slope Tiller Using a Screw Nut Mechanism to Adjust the Driving Wheel

technical field

The utility model relates to a micro-tillage machine for contour planting and sloping land which adopts a screw nut mechanism to adjust a driving wheel.

Background technique

my country is a large agricultural country. With the continuous development of agricultural science and technology, the agricultural production in plain areas has basically realized mechanization. However, the overall terrain of our country is relatively complex, and a lot of agricultural production has to be carried out in mountainous and hilly areas. Because the ground slope of mountains and hills is very steep, it is easy to lose water and soil when carrying out agricultural production along the direction of the slope, and it is more dangerous for people to work along the direction of the slope. Ordinary machinery is prone to rollover when working on contour lines on slopes and cannot work normally. Therefore, agricultural production on hillsides has hardly been mechanized. Taking sowing as an example, most of the existing methods of sowing on sloping fields are manually digging pits, sowing seeds, and covering with soil, which is not only inefficient, but also time-consuming and labor-intensive. The sloping field sowing scheme proposed by some existing patents borrows from the leveling planter scheme, which can realize the function of sowing but often requires manpower as the driving force, and does not liberate people from heavy labor in essence. In order to realize the mechanization of sowing on sloping fields, a contour seeder for sloping fields was developed.

Contents of the invention

The utility model improves the above-mentioned problems, namely the technical problem to be solved by the utility model is that the existing micro tillage machines cannot adapt to the environment with large slopes in mountains, hills and hills.

The specific embodiment of the present utility model is: a kind of contour planting sloping tillage machine adopting the screw nut mechanism to adjust the driving wheel, which is characterized in that it includes a frame and a pair of wheels arranged below the frame, and the wheels Driven by the driving device installed on the frame, the driving device includes a transmission bridge, the wheels are connected to the transmission bridge through the rocker arm of the driving wheel, a gear transmission box is arranged above the frame, and the two ends of the gear transmission box have output shaft, the output shaft is provided with an output helical gear, the middle part of the rocker arm of the driving wheel is hinged with a screw sleeve, and the screw sleeve is provided with a screw threaded with the screw sleeve. The upper end of the rod is placed in the screw fixing seat on the frame, and the lower end extends into the screw sleeve. The screw and the screw sleeve form a screw nut mechanism, and the screw is coaxially provided with an input helical gear. , the output helical gear cooperates with the input helical gear to realize that the screw nut mechanism drives the rocker arm of the driving wheel to rotate relative to the transmission bridge so as to realize the adjustment of the wheels, and the rear side of the frame is provided with a rotary tiller.

Further, the drive device also includes an engine and a gearbox connected to the output end of the engine, the transmission bridge is connected to the output end of the gearbox, the transmission bridge is connected to the transmission shaft provided in the rocker arm of the driving wheel through a bevel gear and The rocking arm can rotate relative to the transmission bridge, and the transmission shaft in the rocking arm of the driving wheel is coordinated with the wheel side reversing reducer arranged on the inner side of the wheel to realize the rotation of the driving wheel.

Further, the gear transmission box is provided with a reversing gear and a transmission gear, and the output shafts at both ends of the gear transmission box have opposite output directions, and the gear transmission box is also provided with a driving handle extending out of the gear transmission box. The crank is positioned at one end of the gear transmission box and has a transmission gear, and the transmission gear realizes the rotation of the output shafts at both ends through the reversing gear.

Further, a differential is arranged inside the transmission axle.

Further, the rear side of the frame is provided with a sleeve, and the two ends of the sleeve are provided with a suspension shaft that can move axially along the sleeve, the rotary tiller is provided under the suspension shaft, and the gearbox is provided with a There is a reversing transmission box driven by the output end of the gearbox, and the output end of the reversing transmission box is transmitted to the rotary tiller transmission box arranged under the rear side of the frame through two universal joint-connected tiller drive shafts. There are a plurality of rotary tiller blades arranged on the rotary tiller shaft, and the rotary tiller shaft is driven to rotate freely by the power of the rotary tiller transmission box.

Further, a mudguard is provided below the suspension shaft, and a spring telescopic rod is provided between the mudguard and the suspension shaft. The spring telescopic rod is composed of two relatively movable sleeves and a The two ends of the spring telescopic rod are respectively hinged on the mudguard frame and the suspension shaft. The two ends of the mudguard frame have support rods extending downward, and the support rods have bearings. The rotary tiller Both ends of the shaft are inserted into bearings inside the fender support frame.

Further, the frame is also provided with handrails.

Compared with the prior art, the utility model has the following beneficial effects: the design is novel, and when the contour line is cultivated, the left and right drive wheels are differentially heightened according to the slope of the mountain to keep the machine body level and prevent the machine from turning over . At the same time, the rotary tiller that can rotate with the slope angle is used for rotary tillage, which not only improves the work efficiency but also ensures the quality of the cultivated land.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the transmission schematic diagram of transmission bridge in the utility model embodiment;

Fig. 3 is a schematic diagram of the movement of the rocker arm in the embodiment of the utility model;

Fig. 4 is a schematic diagram of the internal structure of the gear box in the embodiment of the utility model.

In the figure: 1-wheel 2, reversing reducer 3, frame 4, engine 5, gearbox 6, gear transmission box 7, screw fixing seat 8, crank 9, handrail 10, output helical gear 11, screw 12. Transmission bridge 13, bushing 14, suspension shaft 15, fixed hinge support 16, spring telescopic rod 17, mudguard frame 18, rotary tiller transmission box 19, rotary tiller shaft 20, rotary tiller 21, universal Section 22, driving wheel rocker arm 23, screw sleeve 24, sliding hinge support 25, reversing transmission box, 26-differential, 27-gearbox output shaft, 28-transmission shaft.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in Figures 1 to 4, a contour planting sloping tillage machine that uses a screw nut mechanism to adjust the driving wheel includes a frame 4 and a pair of wheels arranged below the frame 4. The wheels are arranged on the The driving device on the frame 4 is driven, and the driving device includes a motor 4, a gearbox 5 connected to the output end of the motor 4, and a drive bridge 12, and the drive bridge 12 is provided with a differential, and the drive bridge 12 is connected to the drive bridge 12. The transmission box 5 output end is connected, and described wheel is connected with transmission bridge 12 through driving wheel rocking arm 22, and described transmission bridge 12 is connected with the power transmission shaft that is provided with in driving wheel rocking arm 22 by bevel gear and rocking arm can be relatively transmission bridge 12 Rotate, the drive shaft in the rocker arm 22 of the driving wheel cooperates with the wheel side reversing reducer 2 arranged on the inner side of the wheel to realize driving the wheel to rotate.

In this embodiment, a differential 26 is arranged in the middle of the transmission bridge 12, and the differential 26 is connected to the gearbox 5 through a transmission output shaft 27; a differential 26 is provided in the middle of the transmission bridge 12. When turning on a hill, the left and right wheels can achieve a differential speed, making turning easier.

At the same time, the differential 26 also has an auxiliary adjustment effect on the rotation of the rocker arm, as shown in Figure 3, in the figure " "with" "Indicates the direction of motion," "Indicates downward movement," "Indicates upward movement. When the rocker arm on the right side is controlled to move upward through the rocker handle 6, the steering of each gear in the transmission system is shown in the figure. On the contrary, it is beneficial to the height difference adjustment; the adjustment of the driving wheel rocker arm 22 is mainly adjusted by turning the handle 8, and the differential 26 does not play the role of active adjustment, but only helps to adjust the height difference. The main function of 26 is to form a speed difference between the driving wheels on both sides when the machine is turning, so that it is easier to turn.

In this embodiment, a gear transmission box 6 is provided above the frame 4, and an output shaft is provided at both ends of the gear transmission box 6, and an output helical gear 10 is arranged on the output shaft, and the middle part of the driving wheel rocker arm 22 is hinged with a A screw sleeve 23, in the present embodiment, the screw sleeve 23 utilizes the sliding hinge support 24 to realize hinge connection with the rocker arm 22 of the driving wheel. Rod 11, the upper end of the screw mandrel 11 is placed in the screw mandrel holder 7 on the frame 4, the screw mandrel 11 holder 7 can be a ball screw holder in the present embodiment, and the lower end of the screw mandrel 11 extends into the screw mandrel In the sleeve 23, the screw 11 and the screw sleeve 23 form a screw nut mechanism, the screw is coaxially provided with an input helical gear, and the output helical gear cooperates with the input helical gear to realize that the screw nut mechanism drives the driving wheel The rocker arm 22 rotates relative to the transmission axle 12 so as to realize the adjustment of the wheels, and the rear side of the frame 4 is provided with a rotary tiller 20 .

The gear transmission box 6 is provided with a reversing gear and a transmission gear, and the output shaft output directions at both ends of the gear transmission box 6 are opposite, and the gear transmission box 6 is also provided with a driving handle 8 extending out of the gear transmission box. The drive crank is located at one end of the gear transmission box with a transmission gear, and the transmission gear realizes the rotation of the output shafts at both ends through the reversing gear. The cooperating setting of transmission gear and reversing gear can be increased or deleted as required, and its quantity and the mode of setting can be various as long as the output shaft output direction of rotation at both ends of the gear transmission box 6 is guaranteed to be opposite.

In this embodiment, the gear transmission box 6 has a worm driven by the handle 8 and a worm gear matched with the worm, wherein the rocker on one side is driven to swing by the worm gear, and the gear transmission box 6 is also provided with a gear The first bevel gear of the gearbox, the second bevel gear of the gearbox meshing with the first bevel gear of the gearbox, and the third bevel gear of the gearbox meshing with the second bevel gear of the gearbox, the first bevel gear of the gearbox and the worm wheel Coaxial setting, the first bevel gear of the gearbox and the third bevel gear of the gearbox are symmetrically distributed on both sides of the second bevel gear of the gearbox, the third bevel gear of the gearbox drives the output shaft on the other side to swing, and by turning the handle 8 Just can realize the swing action that the output shafts on both sides do the swing direction opposite.

During work, because the direction of rotation of the gears at the two ends of the gear transmission box 6 is opposite, by shaking the handle 8, the rocking arms on both sides can rotate in different directions around the transmission bridge, and finally the wheels on both sides can move up and down. When the machine is on a slope, you can adjust the height difference of the driving wheels on both sides by shaking the handle, and finally adjust the machine body to a horizontal position to prevent the center of gravity from shifting, thereby preventing rollover. There is a differential gear in the middle of the transmission axle. The advantage of this design is that the left and right wheels can achieve a differential speed when turning on a hillside, making turning easier. At the same time, when it is necessary to adjust the height difference of the drive wheels on both sides, the rotation of the rocker arm on one side is transmitted to the differential through the bevel gear, and after being transmitted by a series of gears in the differential, the opposite rotation can be output to the other rocker. The arm is conducive to the adjustment of the height difference of the driving wheel.

In this embodiment, the rear side of the frame 4 is provided with a sleeve 13, and the two ends of the sleeve 13 are provided with a suspension shaft 14 that can move axially along the sleeve 13, and the rotary tiller 20 is arranged on the suspension shaft. Below the 14, the below of the gearbox 5 is provided with a reversing transmission box 25 driven by the output end of the gearbox 5, and the output end of the reversing transmission box is transmitted to the setting through the tiller transmission shaft connected by two universal joints 21. The rotary tiller 20 transmission box below the rear side of the frame 4, the rotary tiller 20 is provided with a plurality and is arranged on the rotary tiller shaft 19, and the rotary tiller shaft 19 is driven by the power of the rotary tiller transmission box 18 Turn freely. Because the power transmission shaft between the reversing transmission box 25 and the rotary tiller transmission box 18 uses two universal joints to connect, the relative height of the two universal joints can vary, and the distance of the rotary tiller shaft with respect to the frame can be Variety.

The bottom of the suspension shaft 14 is provided with a mudguard, and a spring telescopic rod 16 is arranged between the mudguard 17 and the suspension shaft 14. The spring telescopic rod 16 consists of two relatively movable sleeves and is arranged between the sleeves. The two ends of the spring telescopic rod are respectively hinged on the mudguard frame and the suspension shaft 14, the two ends of the mudguard frame have support rods extending downward, and the support rods have bearings. Rotary tiller shaft 19 two ends are inserted in the bearing in the mudguard support frame.

Because the frame has been adjusted to the level by means of the above-mentioned screw mechanism, the suspension shaft is also horizontal. Since the rotary tiller shaft 19 is mounted on the suspension shaft 14 by the spring telescopic rod 16, when carrying out contour work on slopes, The spring telescopic link 16 at the upper end of the slope is shortened, and the spring telescopic link 16 at the lower end of the slope is elongated, so the rotary tiller shaft 19 can be adjusted to the parallel position work on the slope. Because the center of gravity of the rotary cultivator is biased towards the lower end of the slope at this time, it will cause the lower end of the slope to be plowed deeply and the lower end to be plowed shallower, so the effect of the spring in the spring telescopic rod 16 is that the spring at the elongated end will generate contraction force, and the spring at the shortened end will generate tension. , so that the impact of the center of gravity shift of the rotary tiller can be balanced to ensure the quality of the cultivated land.

The utility model has a novel design. During contour farming, the left and right driving wheels are height-differentiated according to the slope of the mountain, so that the machine body remains horizontal and the machine is prevented from turning over. At the same time, the rotary tiller that can rotate with the slope angle is used for rotary tillage, which not only improves the work efficiency but also ensures the quality of the cultivated land.

In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in the present utility model to indicate positional relationships or shapes include states or shapes that are similar, similar or close to them.

Any component provided by the utility model can be assembled from a plurality of individual components, and can also be a single component manufactured by an integral forming process.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that: still The specific implementation of the utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the utility model, all of them should be included in the scope of the technical solution claimed by the utility model.

Claims (7)

1. A contour line planting sloping tillage machine that adopts a screw nut mechanism to adjust drive wheels, is characterized in that it comprises a frame and a pair of wheels arranged below the frame, and the wheels are arranged on the frame by Driven by a driving device, the driving device includes a transmission bridge, and the wheels are connected to the transmission bridge through the rocker arm of the driving wheel. A gear transmission box is arranged above the frame, and an output shaft is provided at both ends of the gear transmission box. An output helical gear is provided, and a screw sleeve is hinged in the middle of the rocker arm of the driving wheel, and a screw threaded with the screw sleeve is provided in the screw sleeve, and the upper end of the screw rod is placed on the frame In the upper screw fixing seat, the lower end extends into the screw sleeve. The screw and the screw sleeve form a screw nut mechanism. The screw is coaxially provided with an input helical gear, an output helical gear and an input helical gear The gears cooperate to realize that the screw nut mechanism drives the rocker arm of the driving wheel to rotate relative to the transmission bridge so as to realize the adjustment of the wheels, and the rear side of the frame is provided with a rotary tiller. 2. A kind of contour planting sloping tillage machine that adopts screw nut mechanism to adjust drive wheel according to claim 1, it is characterized in that, described driving device also comprises engine, the gearbox that is connected with engine output end, The transmission bridge is connected with the output end of the gearbox, the transmission bridge is connected with the transmission shaft provided in the rocking arm of the driving wheel through a bevel gear and the rocking arm can rotate relative to the transmission bridge, and the transmission shaft in the rocking arm of the driving wheel is set Cooperate with the wheel side reversing reducer on the inner side of the wheel to drive the wheel to rotate. 3. according to claim 1 or 2, a kind of contour line planting sloping tillage machine adopting a screw nut mechanism to adjust the drive wheel is characterized in that, a reversing gear and a transmission gear are arranged in the gear transmission box, and the said The output directions of the output shafts at both ends of the gear transmission box are opposite. The gear transmission box is also provided with a driving crank that extends out of the gear transmission box. The drive crank is located at one end of the gear transmission box and has a transmission gear. Realize the rotation of the output shaft at both ends. 4 . A micro-cultivator for contour planting and sloping land using a screw nut mechanism to adjust the drive wheel according to claim 3 , wherein a differential is arranged inside the transmission bridge. 5 . 5. The micro-cultivator for contour planting and sloping land that adopts a screw nut mechanism to adjust the driving wheel according to claim 3, wherein a casing is provided on the rear side of the frame, and the two ends of the casing are A suspension shaft that can move axially along the casing is provided, the rotary cultivator is arranged below the suspension shaft, and a reversing transmission box driven by the output end of the transmission is provided below the gearbox, and the reversing transmission box The output end is transmitted to the rotary tiller transmission box arranged under the rear side of the frame through two universal joint-connected tiller drive shafts. The cutter shaft is driven to rotate freely by the power of the rotary tiller transmission box. 6. A kind of contour planting sloping tillage machine adopting a screw nut mechanism to adjust the drive wheel according to claim 5, characterized in that, a mudguard is provided below the suspension shaft, and the mudguard and the suspension shaft There is a spring telescopic rod between them, the spring telescopic rod is composed of two relatively movable sleeves and a spring arranged between the sleeves, and the two ends of the spring telescopic rod are respectively hinged on the mudguard frame and the suspension shaft The two ends of the mudguard frame have support rods extending downward, the support rods have bearings, and the two ends of the rotary blade shaft are inserted into the bearings in the mudguard support frame. 7 . The micro-cultivator for contour planting slopes using a screw nut mechanism to adjust the driving wheel according to claim 5 , wherein the frame is further provided with handrails. 8 .