Middle plough body protection device of rotary cultivator

Abstract

The utility model discloses a rotary cultivator middle plow body protection device, which relates to the technical field of agricultural machinery, and comprises a machine body box and a plow body, one side of the machine body box is fixedly connected with a connecting plate, and one side of the connecting plate is vertically and symmetrically connected with supporting plates. The upper supporting plate is fixedly connected with the plow body through the safety catch, the lower supporting plate is rotationally connected with the plow body through the rotating bolt, when the plow body touches a hard object, the safety catch can be broken, the plow body rotates backwards with the rotating bolt as the circle center, the safety catch is made of an easily-broken material, particularly a high-carbon steel material, and the safety catch is connected with the plow body through unique connection design. When the plow body touches a hard object, the safety catch can be broken due to the fact that stress exceeds the strength of the safety catch, the plow body can rotate backwards with the rotating bolt as the circle center, and therefore the plow body is prevented from being seriously damaged due to impact of the hard object, the service life of the plow body is remarkably prolonged, and the equipment maintenance and replacement cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially relates to a middle plough body protection device of rotary cultivator. BACKGROUND

[0002] Rotary cultivator as a kind of common agricultural cultivation machinery, is widely used in land ploughing operation.

[0003] The plough body of existing rotary cultivator needs to be in contact with soil and plough soil constantly in the operation process, however, actual land environment is complex and changeable, hard objects such as stone and root are often mixed in soil, when the plough body of rotary cultivator encounters these hard objects, the great resistance generated instantaneously can cause serious impact on the plough body, which can cause deformation and wear of the plough body, affect land quality and efficiency, or even cause the plough body to break down, and even affect other components of rotary cultivator, causing the failure of the whole equipment, the plough body structure of most rotary cultivators lacks effective protection measures, once impacted by hard objects, maintenance cost is high and farm time is wasted, which cannot meet the needs of modern agricultural efficient and stable operation. SUMMARY

[0004] In view of the above problems, the utility model aims at providing a middle plough body protection device of rotary cultivator, to solve the problem that the middle plough body of rotary cultivator is easily damaged by hard objects.

[0005] The technical scheme of the utility model is as follows:

[0006] A middle plough body protection device of rotary cultivator, including machine body box and plough body, one side of the machine body box is fixedly connected with connecting plate, one side of the connecting plate is symmetrically connected with support plate upwards and downwards, the upper support plate is fixedly connected with the plough body through safety catch, the lower support plate is rotatably connected with the plough body through rotating bolt, when the plough body encounters hard objects, the safety catch will break, and the plough body rotates backwards with the rotating bolt as center.

[0007] Preferably, the safety catch is made of easy-to-break material, specifically high-carbon steel material.

[0008] Preferably, the machine body box and the connecting plate are fixed through bolts.

[0009] Preferably, the outer wall of the rotating bolt is inserted with positioning bolt, and the positioning bolt is located on both sides of the support plate.

[0010] Preferably, the bottom of the machine body box is fixedly connected with protection plate, and the protection plate is made of high-strength material, specifically alloy steel material.

[0011] Preferably, the machine body box and the protection plate are fixed through bolts.

[0012] Preferably, the plow body is directly contacted with the protection plate when rotating backward.

[0013] Compared with the prior art, the utility model has the advantages as follows:

[0014] 1、 the utility model discloses a unique connection design, when the plow body meets hard material, the safety bolt will break because of the stress exceeding its strength, make the plow body can with the rotation bolt as the center of rotation backward, thereby avoid the plow body because of hard material impact and be seriously damaged, significantly prolong the service life of plow body, reduced equipment maintenance and replacement cost.

[0015] 2、 the utility model discloses the plow body backward rotation and the protection plate are contacted, and the protection plate adopts high-strength alloy steel material and is made, can bear the impact force that the plow body rotates brings, prevents the plow body from happening excessive displacement after being impacted, avoids its damage to the other parts of rotary tiller, effectively guarantees the safety and stability of the overall structure of rotary tiller.

[0016] 3、 the utility model discloses the body box and connecting plate, protection plate between all through bolt fixation, this connection makes the device more convenient and fast when installing, disassembling and maintaining, simultaneously, the positioning bolt of rotation bolt outer wall insertion can effectively position rotation bolt, guarantees the stability of plow body rotation, and positioning bolt simple structure, convenient to install and replace, further reduced the maintenance difficulty and cost of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the overall structure schematic view of the utility model;

[0018] Fig. 2 It is the structure schematic view of the connecting plate of the utility model;

[0019] Fig. 3 It is the structure schematic view of the safety bolt of the utility model.

[0020] In the figure mark: 1, body box;2, plow body;3, connecting plate;4, support plate;5, safety bolt;6, rotation bolt;7, positioning bolt;8, protection plate. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figs. 1-3The utility model provides a kind of middle plow body protection device in rotary cultivator, including machine body box 1 and plow body 2, machine body box 1 is as the basic support component of entire protection device, provide installation carrier for other structure, it is simultaneously connected the power system and other key parts of rotary cultivator, is the core structure of guarantee device and rotary cultivator whole collaborative operation, its stability determines the installation stability and operating reliability of entire protection device, protect device can continuously and stably play the protection function under the complex ploughing operation environment, avoid other components loose or damage due to the instability of machine body box 1, then influence normal operation of rotary cultivator, one side of machine body box 1 is fixedly connected with connecting plate 3, connecting plate 3 plays the bridge effect of connecting machine body box 1 and plow body 2, plow body 2 is fixed on machine body box 1, so that plow body 2 can follow the movement of rotary cultivator and carry out ploughing operation, simultaneously, when plow body 2 meets impact, transfer stress information, trigger protection mechanism, realize the effective connection between plow body 2 and machine body box 1, ensure the position fixation and power transmission of plow body 2 when normal operation, and when meeting hard material impact, provide necessary connection basis for the function of safety bolt 5 and rotating bolt 6, so that protection device can normally operate, one side of connecting plate 3 is connected with support plate 4 symmetrically, upper support plate 4 is fixedly connected with plow body 2 by safety bolt 5, lower support plate 4 is rotatably connected with plow body 2 by rotating bolt 6, upper support plate 4 is fixedly connected with plow body 2 by safety bolt 5, and the position of plow body 2 is limited when normal operation;Lower support plate 4 is rotatably connected with plow body 2 by rotating bolt 6, provides rotating fulcrum for plow body 2 after safety bolt 5 breaks, so that plow body 2 can rotate backwards, through different connection modes (fixedly connected and rotatably connected), realize the control of plow body 2 in different states when normal operation and meeting impact, ensure the stability of plow body 2 when normal operation, and provide conditions for protection action when meeting impact, improve the practicability and reliability of device, when plow body 2 meets hard material, safety bolt 5 will break, and plow body 2 rotates backwards with rotating bolt 6 as center.

[0023] Safety bolt 5 is made of easy-to-break material, specifically high-carbon steel material, in normal operation, safety bolt 5 firmly fixes plow body 2 on upper support plate 4;When plow body 2 meets hard material, the resistance exceeds its bearing strength, safety bolt 5 breaks, releases plow body 2, so that it can rotate backwards, plays the role of overload protection, through the breaking characteristic of itself, timely release the fixed constraint to plow body 2, so that plow body 2 can perform self-protection action when impacted, avoid plow body 2 from being seriously damaged due to continuous stress, protect plow body 2 with higher value at smaller cost (replace safety bolt 5).

[0024] The body box 1 is fixed between the connecting plate 3 through bolts, the body box 1 is fixed between the protection plate 8 through bolts, the body box 1 is fixed between the connecting plate 3 and the protection plate 8 through bolts, the connecting mode makes the device more convenient and fast when installing, disassembling and maintaining, simultaneously, the positioning bolt 7 inserted in the outer wall of the rotating bolt 6 can effectively position the rotating bolt 6, guarantees the stability of the plow body 2 rotation, and the positioning bolt 7 is simple in structure, is convenient to install and replace, further reduces the maintenance difficulty and cost of equipment.

[0025] The rotating bolt 6 is inserted with the positioning bolt 7 on the outer wall, the positioning bolt 7 is located on both sides of the supporting plate 4, the rotating bolt 6 is as the axis of the plow body 2 rotation, when the safety bolt 5 breaks, the plow body 2 rotates backward with the rotating bolt 6 as the center, so that the plow body 2 can avoid the impact of hard objects, realizes the protection function, simultaneously, the positioning bolt 7 inserted in the outer wall of the rotating bolt 6 positions the rotating bolt 6, guarantees the stability and accuracy of the plow body 2 rotation, provides a reliable fulcrum for the rotation of the plow body 2, ensures that the plow body 2 can rotate according to the predetermined mode when encountering impact, avoids the rotation out of control or deviation, thereby effectively protecting the plow body 2 and the rotary tiller, and the setting of the positioning bolt 7 further improves the stability and reliability of the rotating process.

[0026] The bottom of the body box 1 is fixedly connected with the protection plate 8, the protection plate 8 is made of high-strength material, specifically alloy steel material, when the plow body 2 rotates backward, and is in contact with the protection plate 8, bears the impact force brought by the plow body 2 rotation, prevents the plow body 2 from continuing to move backward, prevents it from causing damage to other parts of the rotary tiller, provides a final protective barrier for the plow body 2, after the plow body 2 completes the rotation obstacle avoidance action, absorbs and disperses the impact force, protects the overall structure safety of the plow body 2 and the rotary tiller, avoids more serious damage caused by excessive displacement of the plow body 2, reduces equipment maintenance cost and guarantees operation continuity.

[0027] The utility model discloses a working principle:

[0028] In normal working condition: when the rotary tiller works, the plow body 2 is connected with the connecting plate 3 through the safety bolt 5 of the upper supporting plate 4 and the rotating bolt 6 of the lower supporting plate 4, and is further connected on the body box 1, at this moment, the plow body 2 carries out normal ploughing operation with the rotary tiller, and carries out ploughing operation on the soil.

[0029] When hard objects are encountered: once the plow body 2 encounters hard objects, the resistance received instantaneously increases, exceeds the strength that the safety bolt 5 can bear, because the safety bolt 5 is made of high-carbon steel material of easy breaking type, so the safety bolt 5 will break, after the safety bolt 5 breaks, the plow body 2 loses the fixed constraint provided by the upper supporting plate 4 through the safety bolt 5, at this moment, the plow body 2 rotates backward with the rotating bolt 6 on the lower supporting plate 4 as the center.

[0030] The protection effect after the plough body 2 rotates: after the plough body 2 rotates backward, the plough body 2 directly collides with the protection plate 8 fixed at the bottom of the machine body box 1, the protection plate 8 is made of high-strength alloy steel material and can bear the impact force brought by the rotation of the plough body 2, so as to avoid the plough body 2 from being damaged due to the strong impact of hard objects, and also to prevent the plough body 2 from excessively displacing or damaging other parts of the rotary cultivator after being impacted, thereby protecting the plough body 2 and the rotary cultivator.

[0031] After the protection action is completed, when the rotary cultivator leaves the hard object area, the operator can replace the new safety catch 5, so that the plough body 2 returns to the normal working connection state and continues the ploughing operation.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A protection device for the middle body of a rotary cultivator, comprising a body box (1) and a plough body (2), characterised in that: One side of the machine body box (1) is fixedly connected with a connecting plate (3), the connecting plate (3) is symmetrically connected with a support plate (4) on one side, the upper support plate (4) is fixedly connected with the plow body (2) through a safety catch (5), the lower support plate (4) is rotatably connected with the plow body (2) through a rotating bolt (6), when the plow body (2) encounters a hard object, the safety catch (5) will break, and the plow body (2) rotates backward with the rotating bolt (6) as the center.

2. The rotating cultivator mid-body guard of claim 1, wherein: The safety catch (5) is made of a material that is easy to break, specifically high-carbon steel.

3. The rotating cultivator mid-body guard of claim 1, wherein: The machine body box (1) and the connecting plate (3) are fixed by bolts.

4. The rotating cultivator mid-body guard of claim 1, wherein: The outer wall of the rotating bolt (6) is inserted with a positioning bolt (7), and the positioning bolt (7) is located on both sides of the support plate (4).

5. The rotating cultivator mid-body guard of claim 1, wherein: The bottom of the machine body box (1) is fixedly connected with a protective plate (8), and the protective plate (8) is made of high-strength material, specifically alloy steel.

6. The rotating cultivator mid-body guard of claim 5, wherein: The machine body box (1) and the protective plate (8) are fixed by bolts.

7. The rotating cultivator mid-body guard of claim 5, wherein: When the plow body (2) rotates backward, it will directly contact the protective plate (8).

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