CN106385807A - Rotary tillage soil loosening device - Google Patents

Abstract

The invention discloses a rotary tillage loosening device, which comprises a fixed-axis gear box and a bevel gear box. Gear shaft and several driven gear shafts with driven gears; several driven gears surround the driving gear and mesh with the driving gear respectively. The input shaft of the bevel gearbox is provided with a driving bevel gear, and the driving bevel gear is installed on the The driven bevel gears on the driving gear shaft are meshed, and each driven gear shaft is respectively connected with a set of rotary tiller assemblies, and each set of rotary tiller assemblies is respectively provided with a set of auxiliary supporting devices. The invention has simple structure, stable tillage depth, effectively reduces the height of the fuselage, can realize the independent self-adjustment function of the tillage depth of the tiller blade, and ensures uniform tillage depth on the ground of the orchard.

Description

A rotary tillage loosening device

technical field

The invention relates to an agricultural mechanical device, relates to a soil loosening device, in particular to a rotary tillage and soil loosening operation device for hilly and mountainous areas.

Background technique

Loose soil and fertilization in orchards is the most effective measure to ensure high, stable and high-quality fruit trees. The mechanized operation of orchard loosening can greatly reduce the labor intensity of orchard farmers, improve production efficiency, save labor costs, and improve economic benefits.

However, for hilly and mountain orchards, due to the complex terrain, mountain operations are more difficult than plain operations. Specifically, firstly, due to the high altitude of mountain orchards, the weight of soil loosening machinery is too heavy for fruit farmers to carry up the mountain operation; secondly, Due to the ruggedness of the mountains, it is difficult for ordinary soil loosening machines to guarantee the consistency of operation depth; finally, due to the characteristics of low tree-type orchard crops with high fruit tree planting density and low tree shape, it will be difficult for traditional micro-tillers to enter work area. In addition, the Chinese patent [201310453385.2] discloses a small garden soil loosening and fertilizing micro-tillage machine, although it solves the problem of light weight, but because the counterweight above the cutter is too light, there is insufficient soil loosening depth in mountainous areas and it is difficult to guarantee the consistency of tillage depth The problem. Therefore, it is necessary to design a rotary tillage loosening device with low structure, light weight and stable plowing depth.

Contents of the invention

In view of the above-mentioned technical problems, the object of the present invention is to propose a rotary tillage and loose soil device for mountain orchards with simple and compact structure, low structure and stable plowing depth.

Technical solution of the present invention is realized like this:

A rotary tillage loosening device, comprising a fixed-axis gear box and a bevel gear box, the bevel gear box is arranged below the fixed-axis gear box, and a driving gear shaft with a driving gear and several A driven gear shaft with a driven gear; several driven gears surround the driving gear and mesh with the driving gear respectively. The input shaft of the bevel gearbox is provided with a driving bevel gear, and the driving bevel gear is installed on the driving gear shaft. The driven bevel gears are meshed, and each driven gear shaft is respectively connected to a set of rotary tiller assemblies, and each set of rotary tiller assemblies is respectively provided with a set of auxiliary supporting devices.

Further, the rotary tiller assembly includes a rotary tiller shaft, two soil-piercing blades and two soil-breaking blades. The rotary cultivator is wound around the shaft to form a double helix structure. The upper parts of the two soil-breaking blades are connected by the tool holder, and the lower parts of the two soil-breaking blades are respectively connected with the ends of the two soil-entry blades in a smooth transition.

Further, a blind hole with an opening downward is provided in the middle of the shaft of the driven gear, and the lower end of the driven gear shaft is provided with a mounting flange and an end cover connected with the mounting flange, and the upper shaft of the rotary blade shaft is provided with a Concave ring, the concave ring on the shaft of the rotary cultivator is rollingly connected with the side wall of the blind hole of the driven gear shaft through the ball, and the ball passes through the lower limit of the end cover, between the top of the rotary cultivator shaft and the top wall of the blind hole A pressure spring is provided, and the rotary tiller shaft can slide up and down in the blind hole of the driven gear shaft when the auxiliary supporting device is under pressure.

Further, the auxiliary support device includes a support plate and two universal wheels; the shaft of the rotary tiller passes through the middle through hole of the support plate and is welded to the shaft body of the shaft of the rotary tiller, and the support plate is located between the end cover and the tool holder disc. In between, two universal wheels are respectively arranged on both sides of the bottom of the support plate.

Further, there are three driven gear shafts.

Further, the cutting edges of the two soil breaking blades are triangular sawtooth structures.

The beneficial effects of the present invention are:

(1) The present invention adopts vertical rotary tillage, and the tiller has the effect of automatically drilling down during operation, and the required plowing depth can be achieved by using a power machine with a small power, which can effectively reduce the weight of the rotary tiller and facilitate the machine to go uphill Operation.

(2) There are three driven gear shafts in the present invention, that is, three sets of cultivating knives are arranged in an equilateral triangle, and the driving gear of the fixed-axis gearbox is relatively evenly stressed, and there will be no missing tillage phenomenon; the fixed-axis gearbox is installed on the frame Below, the height of the fuselage is effectively reduced, which is very suitable for the operation of low tree orchards in mountainous areas.

(3) In view of the unevenness of the mountainous ground, the present invention utilizes the support plate equipped with two universal wheels to sense the unevenness of the ground and realize the limitation of the tillage depth, so that the rotary tiller shaft can slide up and down inside the driven gear shaft , to realize the independent self-adjustment function of the tillage depth of each group of cultivating knives, thereby ensuring the uniformity of the tillage depth on the ground of the orchard.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Figure 2 is an enlarged view of A in Figure 1;

Fig. 3 is the driving schematic diagram of the rotary tiller assembly;

Fig. 4 is the top view of rotary tiller assembly;

Among them: fixed axis gearbox 1, driven gear shaft 2, ball 3, mounting flange 4, end cover 5, universal wheel 6, soil breaking blade 7, soil inserting blade 8, rotary tiller shaft 9, support plate 10, driving Gear shaft 11, bevel gear box 12, input shaft 13, pressure spring 14, driven gear 15, driven bevel gear 16, driving gear 17, driving bevel gear 18, knife rest disc 19.

detailed description

As shown in Figure 1-Figure 4,

A rotary tillage loosening device, comprising a fixed-axis gearbox 1 and a bevel gearbox 12, the fixed-axis gearbox 1 is arranged under the frame of the rotary tiller, the bevel gearbox 12 is arranged under the fixed-axis gearbox 1, and the fixed-axis gearbox 1 is arranged under the fixed-axis gearbox 1. A drive gear shaft 11 with a drive gear 17 and several driven gear shafts 2 with a drive gear 15 are provided in the casing of the shaft gearbox 1; The gear 17 meshes, and the input shaft 13 of the bevel gearbox 12 is provided with a driving bevel gear 18. The driving bevel gear 18 meshes with the driven bevel gear 16 installed on the driving gear shaft 11, and the lower part of each driven gear shaft 2 corresponds to A set of rotary tiller assemblies are connected, and each set of rotary tiller assemblies is respectively provided with a set of auxiliary supporting devices.

The rotary tiller assembly includes a rotary tiller shaft 9, two soil-entry blades 8 and two soil-breaking blades 7, and the two soil-entry blades 8 are installed on both sides of the lower end of the rotary tiller shaft 9 in reverse, and the blades face downward, and the two The soil-crushing blades 7 are coiled around the rotary tiller shaft 9 to form a double helix structure. The upper parts of the two soil-breaking blades 7 are connected through the tool holder disc 19, and the lower parts of the two soil-breaking blades 7 are smooth with the ends of the two soil-entrying blades 8 respectively. Transition connection.

The middle of the driven gear shaft 2 is provided with a blind hole with an opening downward. The lower end of the driven gear shaft 2 is provided with a mounting flange 4 and an end cover 5 connected with the mounting flange 4. The upper part of the rotary blade shaft 9 is The shaft body is provided with a concave ring, and the concave ring on the shaft body of the rotary blade shaft 9 is rollingly connected with the side wall of the blind hole of the driven gear shaft 2 through the ball 3, and the ball 3 is limited by the end cover 5, and the rotary blade shaft 9 A pressure spring 14 is arranged between the top of the top and the top wall of the blind hole, and the rotary cultivator shaft 9 can slide up and down in the blind hole of the driven gear shaft 2 when the auxiliary supporting device is pressed.

The auxiliary supporting device includes a support plate 10 and two universal wheels 6; the rotary blade shaft 9 is welded to the shaft body of the rotary blade shaft 9 after passing through the middle through hole of the support plate 10, and the support plate 10 is located at the end cover 5 Two universal wheels 6 are respectively arranged on both sides of the bottom of the support plate 10 between the knife holder disc 19 .

In order to further improve the stability of the rotary tillage loosening device of the present invention, there are three driven gear shafts 2, that is, three driven gears 17 mesh with the driving gear 15, and the centers of the driven gears 17 are arranged in an equilateral triangle, and the three driven gears 17 are arranged in an equilateral triangle. The size of the gear shaft 2 and the driven gear 17 is the same; thus, the three sets of cultivating knives are arranged in an equilateral triangle, and the driving gear 17 of the fixed-axis gearbox 1 is more evenly stressed, and the phenomenon of missing tillage will not occur; the fixed-axis gearbox 1. It is installed under the rack, which effectively reduces the height of the fuselage, which is very suitable for the operation of low tree orchards in mountainous areas.

In order to further reduce the working resistance of the soil-breaking blade 7, a triangular sawtooth structure is adopted on the cutting edge of the soil-breaking blade 7.

In the static state of the present invention, the rotary tiller assembly is under the action of its own gravity and the elastic force of the pressure spring 14, the rotary tiller shaft 9 moves to the bottom end in the blind hole of the driven gear shaft 2, and is limited by the end cover 5.

When starting to work, the power is input by the power input shaft 13, and the power is turned vertically to the driving gear shaft 11 in the fixed-axis gearbox 1 through the bevel gear box 12, so that the horizontal transmission is changed to the vertical transmission, and the driving gear shaft 11 rotates to drive The driving gear 17 rotates, and power is transmitted to several driven gear shafts 2 by the driven gear 15 meshed with it, and each driven gear shaft 2 is rotated synchronously to realize the rotation of the rotary tiller assembly. Simultaneously, under the gravitational action of the fixed axis gear box 1 and the bevel gear box 12, through the pressure spring 14, the active force is transmitted to the rotary tiller shaft 9, and the rotary tiller assembly is pressed, so that the soil inserting blade 8 cuts into the soil downward, Moving downward, at the same time, due to the elasticity of the spring, the pressure spring 14 is compressed by the reaction force of the rotary blade shaft 9. When the rotary blade assembly moves down until the universal wheel 6 contacts the ground, the universal wheel 6 begins to bear The pressure transmitted by the spring lasts until the universal wheel 6 fully bears the support force. At this time, the spring is compressed by force, and the compressed arrival position is half of the vertical stroke of the rotary blade shaft 9.

Start to move forward to cultivate land, and the soil is broken by the soil-breaking blade 7. When the ground undulates and changes, when the ground where a certain rotary cultivating knife assembly is located rises, the universal wheel 6 on the rotary cultivating knife assembly feels this change , by the upward force of the ground, the universal wheel 6 gives an upward force to the rotary blade shaft 9, so that the rotary blade shaft 9 compresses the spring, and the force acting on the rotary blade shaft 9 increases, so that the universal wheel 6 Keep it compacted with the ground at all times, so as to keep the plowing depth constant. When the height of the ground where a certain rotary tiller assembly is located decreases, the supporting effect of the universal wheel 6 decreases, and the rotary tiller assembly moves downward under the action of the spring until the universal wheel 6 fully bears the supporting force, thereby maintaining the The plowing depth is stable.

In the present invention, the support plate 10 equipped with two universal wheels 6 is used to sense the unevenness of the ground and realize the limitation of the tillage depth, so that the rotary tiller shaft 9 can slide up and down inside the driven gear shaft 2, and realize the tillage of each group. The independent self-adjustment function of the tillage depth of the knife ensures that the tillage depth of the orchard is uniform.

Finally, it should also be noted that what is disclosed above are only specific embodiments of the present invention. All deformations that can be directly derived or associated by those skilled in the art from the content disclosed in the present invention should be considered as the protection scope of the present invention.

Claims (6)

1. a kind of rotary tillage loosening device, including fixed axis gear case and bevel gear box, bevel gear box located at the lower section of fixed axis gear case, It is characterized in that, it is provided with a driving gear shaft with driving gear in the casing of fixed axis gear case and several carry driven gear Passive tooth wheel shaft；Several driven gears are looped around around driving gear, and engage with driving gear respectively, bevel gear box Input shaft be provided with active conical gear, active conical gear is nibbled with the driven bevel gear being arranged on driving gear shaft Close, each passive tooth wheel shaft is connected respectively a set of rotary tillage knife assembly, be often respectively equipped with a set of auxiliary on set rotary tillage knife assembly Supporting arrangement.

2. a kind of rotary tillage loosening device according to claim 1 it is characterised in that rotary tillage knife assembly include rotary tillage cutter shaft, Two bury blade and two hack blades, two blades that bury are reversibly mounted on the both sides of rotary tillage cutter shaft lower end, and blade court Under, around rotary blade reel around in double-spiral structure, the top of two hack blades connects through knife rest plate, two for two hack blades The bottom of hack blade is connected smoothly with the end of two blades that bury respectively.

3. a kind of rotary tillage loosening device according to claim 2 is it is characterised in that be provided with the middle of described passive tooth wheel shaft axle The blind hole that Open Side Down, the lower end of passive tooth wheel shaft is provided with mounting flange and the end cap being connected with mounting flange, described rotary blade It is provided with recessed circle, the recessed circle on rotary tillage cutter shaft axle body is passed through ball and rolled with the side wall of passive tooth wheel shaft blind hole with the upper axis of axle Connect, ball then passes through end cap lower limit, is provided with compression spring between the top of described rotary tillage cutter shaft and the roof of blind hole, auxiliary When supporting arrangement is pressurized, rotary tillage cutter shaft can slide up and down in the blind hole of passive tooth wheel shaft.

4. a kind of rotary tillage loosening device according to claim 3 is it is characterised in that described secondary support means include supporting Plate and two universal wheels；The axle body welding with rotary tillage cutter shaft through after the intermediate throughholes of gripper shoe of rotary tillage cutter shaft, gripper shoe is located at Between end cap and knife rest plate, two universal wheels are separately positioned on the two bottom sides of gripper shoe.

5. a kind of rotary tillage loosening device according to claim 1 is it is characterised in that described passive tooth wheel shaft has three.

6. a kind of rotary tillage loosening device according to claim 2 is it is characterised in that described

The cutting edge of two hack blades is triangular sawtooth structure.