CN218959408U - A kind of rotary cultivator - Google Patents

Abstract

The utility model provides a rotary tillage soil crusher, which is characterized in that: the device mainly comprises a rotary tillage roll shaft assembly, a soil crushing roll shaft assembly, a gearbox, a soil crushing roll shaft transmission box, a transmission shaft, a hanging part, a frame, a carriage and the like; the soil breaking component assembly comprises an L-shaped cutter, a hammer, a soil breaking component fixing seat and a bolt; the soil breaking part fixing seat is fixedly arranged on the soil breaking roll shaft; the bolts are fixedly arranged on the soil breaking part fixing seat and pass through the mounting holes of the L-shaped cutter and the hammer in a clearance fit manner; the L-shaped cutter consists of a cutter head with a bending angle and a cutter body, and the hammer consists of a hammer head and a hammer handle. The rotary tillage cutter is used for preliminary crushing and throwing the soil blocks to the upper part of the rear side, the L cutter and the hammer move oppositely, and the L cutter and the hammer impact the soil blocks at the overlapped opposite speeds and crush the soil blocks secondarily. The L-shaped cutter and the hammer crush the soil after the rotary tillage cutter works for the second time, and throw most of the crushed soil to the upper part of the rear side for three times by a carriage. The utility model provides a rotary tillage soil breaker suitable for dry land soil operation with soil viscosity.

Description

A rotary cultivator

technical field

The utility model relates to the technical field of agricultural equipment, in particular to a rotary cultivator.

Background technique

A rotary tiller is a tillage machine that is matched with a tractor to complete plowing and harrowing operations. The rotary tiller has the functions of restoring the structure of the soil plow layer, improving the ability of soil water storage and moisture conservation, eliminating weeds, reducing pests and diseases, leveling the surface, and improving the standards of agricultural mechanization operations. It has been widely used because of its strong soil breaking ability, flat surface after plowing, etc., and it can chop the root stubble buried below the surface, which is convenient for later crop planting.

When the land is relatively dry and the soil is sticky, the rotary tiller will plow out large hard soil clods, which are easy to get stuck between the rotary tiller knives, and the hard soil will cause great inconvenience to the leveling of the land behind and the planting of crops. Rotary tillage operations will be carried out many times, which increases the operating cost. In order to improve the crushing quality of the soil, at present, the roller shaft of the rotary tiller has been developed from the traditional single-roller shaft to two-roller shafts to three-roller shafts. Soil quality and effects have been greatly improved. During the operation, it was found that the front roller rotary tiller of the multi-roller rotary tiller throws the rotary tilled soil to the rear, and part of the soil will be further crushed by the rear roller rotary tiller. However, for sticky hard soil The pulverizing quality of block still can not be guaranteed, can not meet the operation requirement of fine plowing and land preparation. When the rotation speed of the roller shaft is high, the impact of the hard soil on the rotary tiller is greater, which has a certain impact on the stability of the machine. Long-term operation will cause greater wear and tear on the rotary tiller, which is not easy to repair, and the rotary tiller with more than three rollers The size and weight of the tractor are too large, which increases the driving horsepower of the tractor.

For example, Chinese patent 202022249128.5 "Multi-axis Rotary Tiller" provides a multi-axis rotary tiller, in which the front rotary blade roller shaft assembly and the rear rotary tiller are sequentially installed on the lower side of the frame assembly parallel to each other from front to back. Knife roller shaft assembly, the soil breaking knife roller shaft assembly can be freely rotatably configured and installed at the lower part of the cover plate. During operation, the soil crushed by the front rotary cultivator roller shaft assembly is thrown to the soil crushing knife roller shaft assembly at the upper part of the rear side and the rear rotary cultivator roller shaft assembly at the rear part respectively, and the middle A portion of the soil is crushed again when it hits the crushing knife roller assembly, and another part of the soil is crushed by rotary tillage for the second time when it is thrown to the rear rotary tiller roller assembly to complete the operation of the whole machine. This rotary tiller has a high crushing efficiency, but when rotary tilling sticky dry land soil, large hard soil clods will appear, which cannot guarantee the cultivation quality.

Utility model content

The utility model provides a rotary tillage breaker, the purpose of which is to solve the shortcomings of the prior art, and to provide a rotary tiller breaker suitable for dryland soil operations with sticky soil, which can reduce the existence of relatively large hard soil blocks and form soil The pieces are finely crushed to ensure the quality of farming and meet the requirements of fine farming and land preparation.

The technical scheme that the utility model solves its technical problem adopts is:

A rotary cultivator, characterized in that:

The gearbox is fixed on the frame;

The rotary tillage roller shaft transmission box and the crushing soil roller shaft transmission box are respectively fixedly installed on both sides of the frame;

The transmission shaft is connected to the input end of the rotary tillage roller shaft transmission box through the transmission shaft, the output end of the rotary tillage roller shaft transmission box is connected to one end of the rotary tillage roller shaft, and the other end of the rotary tillage roller shaft is supported on the frame by bearings;

The transmission shaft is connected to the input end of the transmission box of the crushing roller shaft through the transmission shaft, and the output end of the transmission box of the crushing roller shaft is connected to the crushing roller shaft. The other end of the crushing roller shaft is supported on the frame by a bearing. Installed at the rear and upper position of the rotary tiller roller shaft and parallel to each other;

The rotary tillage roller shaft assembly includes a rotary tiller, a rotary tiller roller shaft, and a rotary tiller fixing seat; the rotary tiller is fixedly installed on the rotary tiller roller shaft through the rotary tiller fixing seat;

The crushing roller shaft assembly includes the crushing part assembly and the crushing roller shaft; the crushing part assembly includes the L knife, the hammer, the fixing seat of the crushing part, bolts and spacer sleeves; the fixing seat of the crushing part is fixed on the crushing on the soil roller shaft;

The bolts are fixedly installed on the fixing seat of the crushing parts, and the bolts pass through the mounting holes of the L knife and the hammer with a clearance fit;

The L knife is composed of a knife head and a knife body with a bending angle, and the hammer is composed of a hammer head and a hammer handle.

The way that the crushing component assembly is installed on the crushing roller shaft can be that several crushing component assemblies are installed on the crushing roller shaft along the axial helical direction, and the adjacent L knives of the crushing component assembly do not interfere ;

The way that the crushing parts assembly is installed on the crushing roller shaft can also be that more than two crushing parts assemblies form a group of crushing units, and several crushing parts assemblies of the crushing unit are located on the same surface and The circumference of the crushing roller shaft is evenly distributed; several crushing units are arranged axially along the crushing roller shaft, and the adjacent L knives between the crushing units do not interfere, and the crushing units are symmetrically arranged according to the middle cross section of the crushing roller shaft .

Further, the spline shaft of the gearbox is connected with the universal joint, and the power output shaft of the tractor is connected with the universal joint.

Further, the carriage is hingedly mounted on the rear of the frame, and is located above the rear side of the earth breaking component assembly.

Further, a spacer sleeve is installed between the L-knife of the soil breaking component assembly and the hammer, and the spacer sleeve is installed on the bolt.

Further, a hammer and two L knives arranged symmetrically with respect to the hammer are installed on the bolt.

Further, the height from the bend of the cutter head and blade body of the L knife to the soil-crushing roller shaft is less than the height from the top of the hammer head to the soil-crushing roller shaft, and greater than the height from the lower end of the hammer head to the soil-crushing roller shaft.

Further, the frame includes a front crossbeam, a rear crossbeam, a right side plate, a left side plate, and a transmission support beam; the front end and the rear end of the transmission support beam are fixedly connected to the front crossbeam and the rear crossbeam respectively by welding, and the The gearbox is fixed on the gearbox support beam through bolts; the right side plate and the left side plate are respectively fixed on both sides of the front cross beam, and the right side plate and the left side plate are respectively fixed on both sides of the rear cross beam; The cover plate is fixedly installed on the front beam and the rear beam by bolts or welding.

The utility model is beneficial in that:

The utility model adds a structure of a crushing roller shaft assembly to the traditional single-axis rotary cultivator, and designs a rotary tillage crushing machine that can be used in dryland soil with sticky soil quality. It improves the quality and effect of the crushing operation, and can effectively improve the service life of the working parts, and adapts to and meets the requirements of fine tillage and land preparation. It has a novel, unique, reasonable, simple structure, high efficiency of soil preparation and quality Excellent performance, reliable operation and long service life.

Description of drawings

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

Fig. 1 is the overall front three-dimensional schematic diagram of the utility model;

Fig. 2 is the overall rear three-dimensional schematic diagram of the utility model;

Fig. 3 is a three-dimensional schematic view looking up of the utility model;

Fig. 4 is a schematic diagram of rotation of the rotary tillage roller shaft and the soil crushing roller shaft of the present invention;

Fig. 5 is the crushing roller shaft assembly of the utility model;

Fig. 6 is the broken soil part assembly of the present utility model.

Labels in the figure:

1: Rotary tillage roller shaft transmission box; 2: Left transmission shaft; 3: Bending suspension; 4: Universal joint; 5: Spline shaft; 6: Gearbox; 7: Suspension rod; 8: Right transmission shaft ;9: soil crushing roller transmission box; 10: right side plate; 11: L knife; 12: hammer; 13: rotary tiller; 14: left side plate; 15: front beam; 16: cover plate; Tie rod fixing seat; 18: Rear beam; 19: Drag plate; 20: Right bearing end cover; 21: Gearbox support beam; 22: Crushing roller shaft: 23: Right bearing end cover; 24: Rotary tillage roller shaft; 25 : Rotary cultivator blade fixing seat; 26: Soil crushing component fixing seat; 27: Bolt; 28: Spacer sleeve.

Detailed ways

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model. Ordinary technicians can also obtain other embodiments according to these drawings without paying creative efforts. In order to facilitate the understanding of the utility model, the utility model will be described in more detail below in conjunction with the accompanying drawings and specific embodiments.

It should be noted that when an element is said to be "fixed" to another element, it may be directly on the other element, or there may be one or more intervening elements therebetween. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", and "bottom" used in this specification is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the The utility model and simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

As shown in Figure 1, Figure 2, and Figure 3:

The rotary tillage crusher is mainly composed of rotary tillage roller shaft assembly, soil crushing roller shaft assembly, gearbox, soil crushing roller shaft transmission box, transmission shaft, hanging parts, frame, carriage, etc.

Bending hanging 3, hanging pull rod 7 and pull rod fixing seat 17 form the hanging parts, which are used to connect the suspension system of the tractor. The bending hanger 3 is fixedly mounted on the front beam 15 by welding, one end of the hanging tie rod 7 is connected with the bending hanger 3 through a pin shaft, and the other end is connected with two tie rod fixing seats 17 through a pin shaft, and the two tie rods The fixing seat 17 is symmetrically arranged on the rear beam 18 by welding.

Frame mainly is made of front beam 15, rear beam 18, right side plate 10, left side plate 14, gearbox support beam 21. There are two gearbox support beams 21, the front end and the rear end of the gearbox support beam 21 are fixedly connected with the front beam 15 and the rear beam 18 respectively by welding, and the right side plate 10 and the left side plate 14 are respectively fixed on the front beam 15 on both sides, and the right side plate 10 and the left side plate 14 are fixedly mounted on the rear cross beam 18 both sides respectively. Carrier 19 is hingedly mounted on the right side plate 10 and left side plate 14, and carrier 19 can rotate freely around the hinged installation center. The upper cover plate 16 is fixedly installed on the front beam 15 and the rear beam 18 by means of bolts or welding.

The gearbox 6 is fixed on the gearbox support beam 21 through bolts, the spline shaft 5 of the gearbox 6 is connected to the universal joint 4, and the power output shaft of the tractor is connected to the universal joint 4 and transmits power to the gearbox through the universal joint 4 6.

Rotary tillage roller shaft transmission box 1 is fixedly installed on the left side plate 14, and the broken soil roller shaft transmission box 9 is fixedly installed on the right side plate 10.

The left side of the gearbox 6 is connected to the left transmission shaft 2, the left transmission shaft 2 is connected to the input end (upper end) of the rotary tillage roller shaft transmission box 1, and the output end (lower end) of the rotary tillage roller shaft transmission box 1 is connected to the rotary tillage roller shaft 24. The gear transmission in the rotary tillage roller shaft transmission box 1 transmits the power from the gearbox 6 to the rotary tillage roller shaft 24 for driving the rotary tiller blade to rotate. Gear box 6 right sides connect right transmission shaft 8, and right transmission shaft 8 is connected with 9 input ends (upper end) of crushing soil roller transmission case, and 9 output ends (lower end) of crushing soil roller transmission case are connected with crushing soil roller shaft 22. The gear transmission in the earth-breaking roller shaft transmission box 9 transmits the power from the gearbox 6 to the earth-breaking roller shaft 22 for driving the earth-breaking parts assembly to rotate.

The rotary tiller roller shaft assembly mainly consists of rotary tiller blade 13, rotary tiller roller shaft 24, rotary tiller blade holder 25 and the like. The rotary tiller 13 is fixedly installed on the rotary tiller roller shaft 24 through the rotary tiller holder 25, and is arranged according to certain rules. One end of the rotary tiller roller shaft 24 is connected to the output end of the rotary tiller roller shaft transmission box 1, and the other end is passed through the right bearing The end cover 20 is supported on the right side plate 10 with bearings. The rotation speed of the rotary tillage roller shaft is set at 190-280 r/min, and it turns counterclockwise (as shown by the arrow on the left side of Figure 4). When the rotary tiller blade 13 rotates with the rotary tiller roller shaft 4, the soil is initially pulverized, and the Most of the initially crushed clods are thrown to the upper part of the rear side. The operating depth of the rotary tiller 13 is 10-20 cm.

As shown in FIG. 5 , the crushing roller shaft assembly is mainly composed of the crushing component assembly and the crushing roller shaft 22 .

As shown in Figure 6, the L knife 11, the hammer 12, the soil-crushing component holder 26, the bolt 27, the spacer sleeve 28, etc. constitute the soil-crushing component assembly. The crushing roller shaft 22 is installed in the rear upper position of the rotary tillage roller shaft 24 and is parallel to each other. A hammer 12 and two L knives 11 arranged symmetrically with respect to the hammer 12 are installed on the soil-breaking component fixing seat 26 through bolts 27, and the bolts 27 are fixedly installed on the soil-breaking component fixing seat 26, and the bolts 27 are worn through with clearance fit. Through the mounting holes of the L knife 11 and the hammer 12, the L knife 11 and the hammer 12 can rotate freely around the bolt 27 respectively.

A spacer sleeve 28 is installed between the L knife 11 and the hammer 12, and the spacer sleeve 28 is installed on the bolt 27.

L knife 11 is made of cutter head and blade body, and the bending angle of cutter head and blade body is 90～150 degree, and hammer 12 is made of hammer head and hammer handle. The cutter head of L knife 11 and blade bending place to the height of crushing soil roller shaft 22 are less than the height of hammer head top to crushing soil roller shaft 22, and greater than the height of hammer head low end to crushing soil roller shaft 22.

There are many ways to install the crushing parts assembly on the crushing roller shaft 22, as long as the force on the crushing roller shaft 22 is balanced, two installation methods are given as examples below:

One is that several earth-breaking parts assemblies are installed on the earth-breaking roller shaft 22 along the axial helical direction, and the adjacent L knives 11 of different earth-breaking parts assemblies do not interfere.

The 2nd, 2～5 crushing parts assemblies constitute a group of crushing units, and several crushing parts assemblies of the crushing unit are positioned on the same surface and are evenly distributed with respect to the 22 circumferences of the crushing roller shaft. Several crushing units are axially arranged along the crushing roller shaft 22, the distance between each crushing unit is based on the non-interference of adjacent L knives 11, and all crushing units are symmetrically arranged according to the middle cross section of the crushing roller shaft 22 .

The 22 rotating speeds of the broken soil roller shaft are set to 800～1000 rev/min, and turn to counterclockwise (as shown by the arrow on the right side of Figure 4).

When the earth-breaking component assembly rotates with the earth-breaking roller shaft 22, the L knife 11 and the hammer 12 can freely rotate around the bolt 27. The free rotation around the axis of the L knife 11 and the hammer 12 can increase the crushing capacity and can avoid its hard impact with the harder soil or stones, preventing the damage of the working parts.

During operation, the rotary cultivator shredder is driven by the tractor to move forward as a whole, and the power output shaft of the tractor transmits power to the gearbox 6 through the universal joint 4 .

The gearbox 6 transmits power to the rotary tillage roller shaft transmission box 1 through the left drive shaft 2, and the rotary tillage roller shaft transmission box 1 changes the speed ratio through gear transmission, and then drives the rotary tillage roller shaft assembly.

Gear box 6 transmits power to crushing soil roller shaft transmission box 9 through right transmission shaft 8, and crushing soil roller shaft transmission box 9 changes speed ratio through gear transmission, and then drives the crushing soil roller shaft assembly.

When the rotary tiller 13 rotates with the rotary tiller roller shaft 24, the soil is preliminarily crushed, and most of the preliminarily crushed soil clods are thrown to the upper part of the rear side, and the rotary tiller 13 is initially crushed and thrown to the upper part of the rear side Most of the clods and the L knife 11 and the hammer 12 move towards each other, and the L knife 11 and the hammer 12 hit the clod with superimposed relative speeds and crush it for the second time. When the L-knife 11 and the hammer 12 rotate and contact the ground soil, the soil worked by the rotary tiller 13 is crushed twice to a depth of 5-8 cm, and most of the crushed soil is thrown to the upper part of the rear side. And hit the dragging plate 19 that is positioned at position above the rear side of the crushing parts assembly and pulverize three times. The lower end of the dragging plate 19 can play the role of leveling the ground, and finally the tilled soil is leveled and finely crushed.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A rotary tillage crusher, characterized in that: the gearbox (6) is fixedly mounted on the frame; the two sides of the frame; the transmission shaft (6) is connected with the input end of the rotary tillage roller shaft transmission box (1), and the output end of the rotary tillage roller shaft transmission box (1) is connected with one end of the rotary tillage roller shaft (24), The other end of the rotary tillage roller shaft (24) is supported on the frame by a bearing; the gearbox (6) is connected with the input end of the crushing roller shaft transmission box (9) with a transmission shaft, and the soil crushing roller shaft transmission box (9) outputs The end is connected with the crushing roller shaft (22), and the other end of the crushing roller shaft (22) is supported on the frame with a bearing, and the crushing roller shaft (22) is installed in the rear upper position of the rotary tillage roller shaft (24) and mutually Parallel; the rotary tiller roller shaft assembly includes the rotary tiller (13), the rotary tiller roller shaft (24), and the rotary tiller holder (25); the rotary tiller (13) is fixedly installed through the rotary tiller holder (25) On the rotary tillage roller shaft (24); the broken soil roller shaft assembly includes the broken soil component assembly and the broken soil roller shaft (22); the broken soil component assembly includes L knife (11), hammer (12), broken soil Soil part fixing seat (26), bolt (27), spacer sleeve (28); broken soil part fixing seat (26) is fixedly installed on the broken soil roller shaft (22); bolt (27) is fixedly installed on the broken soil part On the seat (26), the bolt (27) passes through the mounting holes of the L knife (11) and the hammer (12) with clearance fit; the L knife (11) is composed of a knife head and a knife body with a bending angle, and the hammer ( 12) Consists of a hammer head and a hammer handle. 2. A kind of rotary tillage breaker as claimed in claim 1, characterized in that: several broken soil component assemblies are installed on the broken soil roller shaft (22) along the axial helical direction, and the broken soil component assembly Adjacent L knives (11) do not interfere. 3. A kind of rotary tillage crusher as claimed in claim 1, characterized in that: two or more crushing parts assemblies form a group of crushing units, and several crushing parts assemblies of the crushing unit are located in the same surface and with respect to the circumference of the crushing roller shaft (22); several crushing units are arranged axially along the crushing roller shaft (22), and the adjacent L knives (11) between the crushing units do not interfere, and the crushing The soil unit is arranged symmetrically according to the middle cross section of the broken soil roller shaft (22). 4. A kind of rotary tillage crusher as claimed in claim 1, characterized in that: the splined shaft (5) of the gearbox (6) is connected to the universal joint (4), and the tractor power output shaft is connected to the universal joint ( 4). 5. A rotary tillage crusher according to claim 1, characterized in that: the carriage (19) is hingedly mounted on the rear of the frame, and is located above the rear side of the crushing parts assembly. 6. A kind of rotary tillage crusher according to claim 1, characterized in that: a spacer sleeve (28) is installed between the L knife (11) and the hammer (12) of the soil breaking component assembly, Spacer sleeve (28) is installed on the bolt (27). 7. A rotary tillage crusher according to claim 1, characterized in that: a hammer (12) and two L knives arranged symmetrically with respect to the hammer (12) are installed on the bolt (27) (11). 8. A kind of rotary tillage crusher as claimed in claim 1, characterized in that: the height from the bending point of the cutter head and blade body of the L knife (11) to the crushing roller shaft (22) is less than the top of the hammer head To the height of the crushing soil roller shaft (22), and greater than the height of the hammer head low end to the crushing soil roller shaft (22). 9. A kind of rotary tillage crusher as claimed in claim 1, characterized in that: the frame includes a front beam (15), a rear beam (18), a right side plate (10), a left side plate (14), The gearbox support beam (21); the front end and the rear end of the gearbox support beam (21) are fixedly connected with the front beam (15) and the rear beam (18) respectively by welding, and the gearbox (6) is fixed by bolts. Installed on the transmission support beam (21); the right side plate (10) and the left side plate (14) are respectively fixed on both sides of the front beam (15), and the right side plate (10) and the left side plate ( 14) fixedly mounted on both sides of the rear beam (18) respectively; the cover plate (16) positioned above is fixedly installed on the front beam (15) and the rear beam (18) by means of bolts or welding.

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