CN107889566B

CN107889566B - Agricultural scarifier

Info

Publication number: CN107889566B
Application number: CN201711202514.5A
Authority: CN
Inventors: 张燕琴
Original assignee: Dongguan Polytechnic
Current assignee: Dongguan Polytechnic
Priority date: 2017-11-27
Filing date: 2017-11-27
Publication date: 2023-04-07
Anticipated expiration: 2037-11-27
Also published as: CN107889566A

Abstract

The invention relates to the technical field of agricultural machinery, in particular to an agricultural scarifier; the guide wheel mechanisms comprise support arms, guide wheels, guide wheel supports, support rods, support connecting pieces and connecting rods, the guide wheels are rotatably mounted on the guide wheel supports, the support rods are fixedly connected with the guide wheel supports, and the support rods are radially and rotatably connected with the connecting rods through the support connecting pieces; the supporting arm is fixedly arranged on the scarifier main body, the lower end of the sleeve is fixedly provided with an annular convex edge, and the sleeve is sleeved with a spring; the initial height of the guide wheel is adjusted by adjusting the connecting rod so as to meet the requirements of different scarification depths; through the spring of establishing on the sleeve, utilize the elastic buffer of spring to solve the loosening tiller through the place of pothole or during the turn, the curb plate leaves the problem of slot on the ground easily.

Description

Agricultural scarifier

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to an agricultural scarifier.

Background

In order to improve the soil cultivation quality and increase the crop yield, soil loosening is required to be carried out on the field regularly or before crop seeding in each season. To improve the efficiency of loosening the soil, agricultural scarifiers are generally used to loosen the soil in fields today.

Present agricultural loosening tiller generally includes the loosening tiller main part, sets up the soil flattening structure behind the loosening tiller main part and sets up the baffle in soil flattening structure both sides.

However, this design is not very reasonable:

1. according to the generation requirements of different crops, the requirements of soil loosening depth are different, for example, the soil loosening machine supported by the invention can realize soil loosening at different depths of 20-60 cm, and if no adjusting structure is designed, the depths of inserting the baffles at two sides into the soil are different, so that huge driving resistance is brought.

2. In the agricultural operation process, the land with different heights is inevitably contacted, and particularly when the vehicle turns, the stress on two sides is unbalanced, and turning grooves are easy to be left.

Disclosure of Invention

The invention provides an agricultural scarifier, which aims to solve the problems of the existing scarifiers.

In order to achieve the functions, the technical scheme provided by the invention is as follows:

an agricultural scarifier comprises a scarifier body,

The agricultural scarifier also comprises two guide wheel mechanisms symmetrically arranged at the left side and the right side of the scarifier main body;

the guide wheel mechanism comprises a supporting arm, a guide wheel bracket, a bracket rod, a bracket connecting piece and a connecting rod, the guide wheel is rotatably arranged on the guide wheel bracket, the bracket rod is fixedly connected with the guide wheel bracket, and the bracket rod is radially and rotatably connected with the connecting rod through the bracket connecting piece;

the supporting arm is fixedly installed on the scarifier main body, an inner hole shaft is arranged at the tail end of the supporting arm, a sleeve is sleeved outside the connecting rod and inserted into the inner hole shaft, a gap is reserved between the sleeve and the inner hole shaft, the sleeve and the inner hole shaft can slide relative to each other, an end cover is fixedly connected to the top end of the sleeve, the cross section of the upper end part of the connecting rod is waist-shaped, and a waist-shaped hole allowing the connecting rod to pass through is formed in the end cover;

the upper end part of the connecting rod is uniformly provided with a plurality of pairs of matching grooves along the axial direction of the connecting rod, and the opening height of each matching groove is equal to the thickness of the end cover;

the lower end of the sleeve is fixedly provided with an annular convex edge, the sleeve is sleeved with a spring, the bottom surface of the spring is in contact with the upper end surface of the convex edge, and the top end surface of the spring is in contact with the lower end surface of the inner hole shaft.

Preferably, the connecting rod is sleeved with a non-return piece, the non-return piece is provided with a waist-shaped hole matched with the upper end of the connecting rod, and two parallel non-return blocks are arranged beside the waist-shaped hole.

Preferably, a knob is mounted at the upper end of the connecting rod.

Preferably, the bottom of the non-return piece is provided with a raised limiting block, and the height of the limiting block is lower than that of the non-return piece.

Preferably, the agricultural scarifier further comprises a leveling mechanism, wherein the leveling mechanism is installed between the two supporting arms;

leveling mechanism includes connecting plate, hack board and flat native board, the upper portion of connecting plate with support arm rotatable coupling, the hack board with flat native board parallel arrangement respectively is in the lower part of connecting plate, wherein:

a plurality of tooth nails are uniformly arranged at the tail part of the soil crushing plate, and a gap is reserved between every two adjacent tooth nails;

the flat soil plate is wavy, the wave troughs of the wavy form correspond to the tooth nails, and the wave crests correspond to the gaps between the two adjacent tooth nails.

The invention has the beneficial effects that:

1. the initial height of the guide wheel is adjusted by adjusting the connecting rod so as to meet the requirements of different soil loosening depths;

2. through the spring of establishing on the sleeve, when the elastic buffer through the spring solved the loosening tiller through the place of pothole or turn, the curb plate left the problem of slot on the ground easily.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a guide wheel mechanism;

FIG. 3 is an exploded schematic view of the idler mechanism;

FIG. 4 is a schematic view of a check;

FIG. 5 is a schematic view of the flattening mechanism;

FIG. 6 is a schematic view of another orientation of the flattening mechanism;

fig. 7 is a schematic structural view of the side dam.

Detailed Description

The invention will be further elucidated with reference to the accompanying figures 1 to 7:

an agricultural ripper as shown in fig. 1 includes a ripper main body 1, a leveling mechanism 2 mounted behind the ripper main body 1, and two guide wheel mechanisms 3 mounted on the left and right sides of the ripper main body 1. The overall structure of the invention is left-right symmetrical, so only one side of the invention will be described, and the same embodiment will be used for the other side.

As shown in fig. 2 and 3, the guide wheel mechanism 3 includes a support arm 31, a guide wheel 32, a guide wheel bracket 33, a bracket rod 34, a bracket link 35, and a connection rod 36. Idler 32 is rotatably mounted on idler bracket 33, and a circular boss is provided at the upper end of bracket rod 34, and the lower end of bracket rod 34 is screw-coupled to idler bracket 33. Threaded hole has been seted up to the upper end of leg joint spare 35, and a round hole has been seted up to the lower extreme of threaded hole, and the diameter ratio boss's of round hole external diameter is slightly bigger, and the height ratio boss of round hole is highly slightly higher, and after the round hole was packed into to the boss, can radially free rotation. The connecting rod 36 is cylindrical, a male thread matched with the threaded hole in the connecting piece is arranged at the lower end part of the connecting rod 36, and the connecting rod 36 is fixedly connected with the connecting piece through the thread matching.

The supporting arm 31 is fixedly installed on the scarifier main body 1, the tail end of the supporting arm 31 is provided with an inner hole shaft 311, the connecting rod 36 is sleeved with the sleeve 37, the sleeve 37 is inserted into the inner hole shaft 311, a gap is reserved between the sleeve 37 and the inner hole shaft 311, the sleeve 37 can slide relative to the inner hole shaft, the top end of the sleeve 37 is welded with the end cover 38, and a waist-shaped hole 381 is formed in the middle of the end cover 38. Two parallel assembling planes 361 are milled on the cylinder of the upper end part of the connecting rod 36, so that the cross section of the upper end part of the connecting rod 36 is in a kidney shape matched with the kidney-shaped hole 381, and the upper end part of the connecting rod 36 just can pass through the kidney-shaped hole 381 of the end cover 38. On the cylindrical surface that the upper end of the tie rod 36 presents 90 degrees with the assembly plane 361, still equip with several pairs of cooperation grooves 362 along the axial direction of the tie rod 36, the height of the opening of the cooperation groove 362 is the same with the thickness of the end cap 38, when using, the upper end of the tie rod 36 is from the lower surface of the end cap 38 up to penetrate into the waist-shaped hole 381, and according to the required height, choose the cooperation groove 362 near this height, after this cooperation groove 362 aligns with the end cap 38, rotate the tie rod 36 90 degrees, make this cooperation groove 362 cooperate and block on the straight edge of the waist-shaped hole 381 with the straight edge of the waist-shaped hole 381, thus prevent in using, the tie rod 36 is fleed in the end cap 38.

The connecting rod 36 and the end cap 38 may rotate relative to each other due to vibration during use, and the engagement groove 362 and the end cap 38 may be disengaged when the connecting rod and the end cap are rotated relative to each other in the same direction by 90 degrees. In order to prevent the connecting rod 36 and the end cover 38 from rotating relatively, the connecting rod 36 is sleeved with a check member 39, as shown in fig. 4, a kidney-shaped hole 391 matched with the connecting rod 36 is also formed in the check member 39, two parallel check blocks 392 are arranged beside the kidney-shaped hole 391, when in use, after the matching groove 362 is matched with the end cover 38, the check member 39 is buckled, and at the moment, the check block 392 on the check member 39 is just plugged into a gap between the connecting rod 36 and the kidney-shaped hole 381, so that the relative rotation between the connecting rod 36 and the end cover 38 is prevented. In order to facilitate the picking up of the check member 39 during use, the bottom of the check member 39 is further provided with a raised stopper 393, and the height of the stopper 393 is lower than that of the check member 392.

A knob 363 is installed at the upper end of the connecting rod 36, and the connecting rod 36 is conveniently rotated by the knob 363 to adjust the initial height of the connecting rod 36.

The lower end of the sleeve 37 is provided with an annular convex edge 371, and the convex edge 371 is in threaded connection with the sleeve 37. The sleeve 37 is externally sleeved with a spring 40, the bottom surface of the spring 40 is contacted with the upper end surface of the convex edge 371, and the top end surface of the spring 40 is contacted with the lower end surface of the inner hole shaft 311.

Two support arm 31 intermediate junction crossbeam 4, leveling mechanism 2 is rotatable to be set up between two support arms 31, and a plurality of mounting hole has been seted up to the arm end level of support arm 31, passes through several mounting holes wherein through the bolt, fixes support arm 31 on ripper main part 1.

As shown in fig. 5, the leveling mechanism 2 includes a connecting plate 21, a soil crushing plate 22 and a soil leveling plate 23, a connecting rod 24 with pin holes at both ends is welded on the top of the connecting plate 21, the connecting rod 24 is rotatably connected with the mounting hole on the supporting arm 31 through a connecting pin, the relative positions of the connecting plate 21 and the supporting arm 31 are adjustable, and the soil crushing plate 22 and the soil leveling plate 23 are respectively arranged in parallel on the lower part of the connecting plate 21.

The tail of the soil breaking plate 22 is uniformly provided with a plurality of tooth nails 221 with the same shape, the tooth nails 221 are long-strip-shaped, the thickness of the tooth nails is the same as that of the soil breaking plate 22, the width of the tooth nails is 2 cm-5 cm, in the embodiment, the width of the tooth nails 221 is 4cm, and the tail of the tooth nails 221 is provided with a chamfer, so that the tail of the tooth nails is relatively sharp. A gap is left between two adjacent pins 221, and the width of the gap is the same as that of the pin 221, and is 4cm in this embodiment.

As shown in fig. 6, the flat soil plate 23 is a corrugated plate having a cross-sectional area of a wave shape, wherein a wave trough of the wave shape corresponds to the tooth pin 221, and a wave crest of the wave shape corresponds to a gap between two adjacent tooth pins 221.

As shown in fig. 1 and 7, the two support arms 31 are externally provided with side baffles 5, each side baffle 5 comprises an upper plate 51 and a lower plate 52 connected to the lower end of the upper plate 51, the whole side baffle 5 is bent, the included angle between the upper plate 51 and the lower plate 52 is 130-160 degrees, and the height of the lower plate 52 is 5-12 cm. The angle between the upper plate 51 and the lower plate 52 is 150 ° in this embodiment, and the height of the lower plate 52 is 8cm.

The use of the agricultural ripper of the present invention is described below:

before the use, according to the condition that the loosening tiller is different to the depth of impressing of soil and unevenness on ground, adjust the initial height of connecting rod 36 earlier, the accommodation process is as follows: firstly, the check piece 39 is pulled up, then the knob 363 on the connecting rod 36 is held by hand, the connecting rod 36 is driven to rotate 90 degrees clockwise or anticlockwise, then the connecting rod 36 is pulled downwards or pushed downwards to adjust the height of the connecting rod 36, so as to adjust the initial ground clearance height of the guide wheel 32, the matching groove 362 near the selected height is selected, after the matching groove 362 is aligned with the end cover 38, the knob 363 is held to rotate the connecting rod 36 90 degrees, so that the matching groove 362 is matched with the straight edge of the waist-shaped hole 381, and then the check piece 39 is buckled.

The during operation, guide pulley 32 reciprocates in order to contact ground at vertical direction, guide pulley support 33 reciprocates at vertical direction along with guide pulley 32, thereby drive connecting rod 36 and reciprocate, connecting rod 36 drives end cover 38 and reciprocates together, end cover 38 drives and reciprocates together with its fixed connection's sleeve 37, the protruding edge 371 compression elasticity in bottom when sleeve 37 reciprocates, spring 40 inserts the degree of depth of support arm 31 inner bore axle 311 through compression control sleeve 37 and adjusts two guide pulley 32's height respectively, avoid whole loosening tiller main part 1 at the in-process of traveling, because the unevenness on ground produces the slope and leads to one side baffle 5 to impress ground and leave the slot.

Soil that splashes after the agricultural loosening tiller loosens the soil receives blockking of side shield 5 can not scatter to the next door, and because side shield 5 is the form of buckling, consequently the soil of collecting can form a width broad, highly lower soil collection area in side shield 5's inboard, pile up on 5 limits of side shield with the whole soil of traditional straight side shield 5 collection and compare, the scheme of this embodiment more is favorable to follow-up soil flattening, makes the flattening effect of soil better.

The soil after loosening is subjected to downward covering pressure of the leveling mechanism 2 and forward pulling force of the loosener, so that larger soil blocks can be raked up by the tooth nails 221 on the soil crushing plate 22, higher soil piles can be also cut down under the dragging of the tooth nails 221 on the soil crushing plate 22 to form first leveling, and uniform shallow trenches can be formed on the ground after the first leveling due to the action of the tooth nails 221 on the soil crushing plate 22; the wavy soil leveling plate 23 continues to level the soil primarily leveled by the soil crushing plate 22 for the second time, the soil leveling plate 23 is a wave plate, in the advancing direction of the agricultural scarifier, the wave crest, namely the raised part of the wave plate, is behind the front wave trough, the wave trough corresponds to the shallow trench, and when the soil leveling plate 23 advances, the soil around the shallow trench is uniformly backfilled into the trench to form a leveled ground, so that the leveling quality is good; in addition, the leveling mechanism 2 can rotate around the positioning pin holes so as to meet the requirement that the scarifier works on the soil with different depths.

The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the claims.

Claims

1. The utility model provides an agricultural loosening tiller, includes the loosening tiller main part, its characterized in that: the agricultural scarifier also comprises two guide wheel mechanisms symmetrically arranged at the left side and the right side of the scarifier main body;

the upper end part of the connecting rod is uniformly provided with a plurality of pairs of matching grooves along the axial direction of the connecting rod, and the height of an opening of each matching groove is the same as the thickness of the end cover;

the lower end of the sleeve is fixedly provided with an annular convex edge, a spring is sleeved outside the sleeve, the bottom surface of the spring is in contact with the upper end surface of the convex edge, and the top end surface of the spring is in contact with the lower end surface of the inner hole shaft.

2. An agricultural ripper as in claim 1 wherein: the connecting rod is sleeved with a non-return piece, a waist-shaped hole matched with the upper end of the connecting rod is formed in the non-return piece, and two parallel non-return blocks are arranged beside the waist-shaped hole.

3. An agricultural ripper as defined in claim 1, wherein: a knob is installed at the upper end of the connecting rod.

4. An agricultural ripper as defined in claim 2, wherein: the bottom of non return spare is provided with bellied stopper, the height of stopper is than the height of non return piece low.

5. An agricultural ripper as claimed in any one of claims 1 to 4, wherein: the agricultural scarifier also comprises a leveling mechanism, and the leveling mechanism is arranged between the two supporting arms;