CN206136597U - Rotary tillage device that loosens soil - Google Patents

Abstract

The utility model discloses a rotary tillage loosening device, which comprises a fixed-axis gear box and a bevel gear box. The bevel gear box is arranged under the fixed-axis gear box. The driving gear shaft and several driven gear shafts with passive 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 connected with the installation The driven bevel gears on the driving gear shaft are meshed, and each driven gear shaft is correspondingly 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 utility model 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 utility model relates to an agricultural mechanical device, in particular 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.

Utility model content

In view of the above-mentioned technical problems, the purpose of this utility model is: to propose a simple and compact structure, low structure, and stable plowing depth of mountain orchard rotary tillage loosening device.

The technical solution of the present utility model is realized in this way:

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 utility model are:

(1) The utility model adopts a vertical rotary tiller, 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 is convenient for mechanical Uphill work.

(2) There are three passive gear shafts in the utility model, that is, three sets of cultivating knives are arranged in an equilateral triangle. Under the frame, 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 utility model uses 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 shaft of the rotary cultivator can move up and down inside the shaft of the driven gear Sliding realizes the independent self-adjustment function of the tillage depth of each group of cultivating knives, thus ensuring uniform tillage depth on the ground of the orchard.

Description of drawings

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

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-entry 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 utility model, 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 these three The size of the driven gear shaft 2 and the driven gear 17 is the same; thus, three sets of cultivating knives are arranged in an equilateral triangle, and the driving gear 17 of the fixed-axis gearbox 1 is stressed more evenly, and the phenomenon of missing tillage will not occur; the fixed-axis gear The box 1 is installed under the frame, which effectively reduces the height of the fuselage, and 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.

Under the static state of the utility model, 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.

The utility model uses the support plate 10 equipped with two universal wheels 6 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, realizing the The independent self-adjustment function of the plowing depth of the cultivating knife ensures that the plowing depth of the orchard ground is uniform.

Finally, it should be noted that what is disclosed above are only specific embodiments of the present invention. All deformations that a person of ordinary skill in the art can derive or associate directly from the content disclosed in the utility model shall be considered as the protection scope of the utility model.

Claims (6)

1. A rotary tillage loosening device, comprising a fixed-axis gear box and a bevel gear box, the bevel gear box is arranged under the fixed-axis gear box, and it is characterized in that a driving gear with a driving gear is provided in the box of the fixed-axis gear box The driving gear shaft and several passive gear shafts with passive gears; several passive 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 and The driven conical gears installed 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. 2. A kind of rotary tillage loosening device according to claim 1, characterized in that, the rotary tiller assembly comprises a rotary tiller shaft, two soil-entry blades and two soil-crushing blades, and the two soil-entry blades are reversely installed on the On both sides of the lower end of the rotary tiller shaft, with the blades facing downward, the two soil breaking blades are coiled around the rotary tiller 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 They are respectively connected with smooth transitions at the ends of the two soil-entrying blades. 3. A rotary tillage and soil loosening device according to claim 2, characterized in that a blind hole with an opening downward is provided in the middle of the driven gear shaft, and a mounting flange is provided at the lower end of the driven gear shaft and is connected with the mounting flange. The flange-connected end cover, the upper shaft body of the rotary tiller shaft is provided with a concave ring, the concave ring on the shaft body of the rotary tiller shaft is rollingly connected with the side wall of the blind hole of the driven gear shaft through balls, and the balls pass through the end cover Lower limit, a pressure spring is provided between the top of the rotary blade shaft and the top wall of the blind hole, and the rotary blade shaft can slide up and down in the blind hole of the driven gear shaft when the auxiliary supporting device is pressed. 4. A kind of rotary tillage loosening device according to claim 3, characterized in that, the auxiliary supporting device comprises a support plate and two universal wheels; the rotary tiller shaft passes through the middle through hole of the support plate and The shaft body of the rotary tiller shaft is welded, the support plate is located between the end cover and the tool holder disc, and two universal wheels are respectively arranged on both sides of the bottom of the support plate. 5. A rotary tillage and soil loosening device according to claim 1, characterized in that there are three driven gear shafts. 6. A kind of rotary tillage loosening device according to claim 2, characterized in that, the The cutting edges of the two soil-breaking blades are triangular sawtooth structures.