阅读说明：本技术 一种秸秆还田犁 (Straw returning plough ) 是由 陈海涛 范子铄 孙桂芹 张佳丽 王明 于 2021-03-01 设计创作，主要内容包括：本发明涉及农业机械技术领域,尤其是涉及一种秸秆还田犁；该秸秆还田犁包括：悬挂架,与拖拉机连接；犁铧部件,与悬挂架连接,且犁铧部件位于悬挂架远离拖拉机的一侧；粉碎装置,位于悬挂架的下方；驱动装置,与拖拉机的输出轴连接,并与粉碎装置连接；高度调节机构,固定设置在粉碎装置上,且高度调节机构分别与驱动装置和悬挂架连接；本发明提供的一种秸秆还田犁,该秸秆还田犁能够提高人们秸秆还田的效率。(The invention relates to the technical field of agricultural machinery, in particular to a straw returning plow; this straw returning plough includes: the suspension bracket is connected with the tractor; the ploughshare component is connected with the suspension bracket and is positioned on one side of the suspension bracket, which is far away from the tractor; the crushing device is positioned below the suspension bracket; the driving device is connected with an output shaft of the tractor and is connected with the crushing device; the height adjusting mechanism is fixedly arranged on the crushing device and is respectively connected with the driving device and the suspension bracket; the straw returning plow provided by the invention can improve the efficiency of returning straws to the field of people.)

1. A straw returning plow is characterized by comprising:

the suspension bracket (1) is connected with a tractor;

the plough share component (2) is connected with the suspension bracket (1), and the plough share component (2) is positioned on one side of the suspension bracket (1) far away from the tractor;

the crushing device (3) is positioned below the suspension bracket (1);

the driving device (4) is connected with an output shaft of the tractor and is connected with the crushing device (3);

and the height adjusting mechanism (5) is fixedly arranged on the crushing device (3), and the height adjusting mechanism (5) is respectively connected with the driving device (4) and the suspension bracket (1).

2. The straw returning plow of claim 1, wherein said hanger (1) comprises:

the frame body (11) is connected with a suspension device of the tractor, one side of the frame body (11) far away from the tractor is connected with the ploughshare component (2), and the crushing device (3) is positioned below the frame body (11);

and a height limiting lug (12) used for enabling the height adjusting mechanism (5) to perform linear motion and preventing the height adjusting mechanism (5) from being separated from the suspension bracket (1) is arranged on the side surface of the bracket body (11).

3. The straw returning plow of claim 2, wherein said chopping device (3) comprises:

a frame (31) connected to the drive device (4);

the cutter shaft component (32) penetrates through the frame (31) and is rotatably connected with the frame (31), and the cutter shaft component (32) is connected with the driving device (4).

4. A plough as claimed in claim 3, characterised in that said driving means (4) comprise:

a gear transmission (41) provided on the frame (31) and connected to an output shaft of the tractor;

the transmission component (43) is arranged on the frame (31), the transmission component (43) is connected with the gear transmission (41) through a transmission shaft (42), and the transmission component (43) is connected with the height adjusting mechanism (5).

5. A plough returning stalks to fields as in claim 4, characterized in that said height adjustment mechanism (5) comprises:

a sliding shoe plate member (51) connected to the frame (31);

the slide way device (52) is sleeved on the height limiting lug (12) and is in sliding connection with the height limiting lug (12), and the slide way device (52) is fixedly connected with the frame (31).

6. A plough as set forth in claim 5 wherein said skid shoe plate member (51) comprises:

a sliding shoe part (511) connected with the frame (31);

and the linear motion mechanism (512) is arranged between the suspension bracket (1) and the frame (31) and is connected with the transmission component (43).

7. The straw returning plow of claim 6, wherein the slipper (511) comprises:

a contact member (5111) having one end rotatably connected to the frame (31);

a slide rail (5112) provided on the other end of the contact member (5111);

the sensitive device (5113) is arranged on the frame (31) and is connected with the sliding rail (5112) in a sliding manner;

and the valve body (5114) is positioned above the sensitive device (5113), and the valve body (5114) is connected with the linear motion mechanism (512).

8. A plough as set forth in claim 7 wherein said sensitive means (5113) comprises:

a fixing member (51131) provided on the frame (31);

a hollow sleeve (51132) fixedly arranged on the fixing piece (51131);

a sensitive piece (51133) penetrating through the hollow sleeve (51132) and connected with the hollow sleeve (51132) in a sliding way;

one end of the sensitive piece (51133) is connected with the sliding rail (5112) in a sliding mode, and the other end of the sensitive piece is located below the valve body (5114).

9. The straw returning plow of claim 8, wherein said sensitive member (51133) comprises:

the sliding block (511331) is connected with the sliding rail (5112) in a sliding way;

the vertical rod is connected with the hollow sleeve (51132) in a sliding manner, one end of the vertical rod, which is close to the sliding rail (5112), is rotatably connected with the sliding block (511331), and the other end of the vertical rod penetrates through the hollow sleeve (51132);

one end of the bending piece (511333) is connected with one end of the vertical rod far away from the sliding block (511331), and the other end of the bending piece is positioned below the valve body (5114).

10. The straw returning plow of claim 7, wherein the linear motion mechanism (512) comprises:

an oil tank (5121) provided on the frame (31);

a hydraulic pump (5122) which is respectively connected with the transmission component (43) and the valve body (5114), and the hydraulic pump (5122) is communicated with the oil tank (5121);

and the hydraulic cylinder (5123) is arranged between the suspension frame (1) and the frame (31), and the hydraulic cylinder (5123) is respectively communicated with the hydraulic pump (5122) and the hydraulic cylinder (5123).

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a straw returning plow.

Background

Returning straws to the field is a method for applying straws which are not suitable for being directly used as feed to soil directly or after being piled up and decomposed; the process of agricultural production is also a process of energy conversion; the crops need to consume energy continuously in the growth process, and also need to supplement energy continuously, and continuously adjust the content of water, fertilizer, gas and heat in the soil. The straws contain a large amount of fresh organic materials, and after returning to farmlands, the fresh organic materials can be converted into organic matters and quick-acting nutrients through decomposition for a period of time; not only improves the physical and chemical properties of the soil, but also can supply certain nutrients such as potassium and the like; the straw returning can promote agriculture water conservation, cost saving, yield increase and efficiency increase, and is also fully paid attention to in environmental protection and agricultural sustainable development.

Most of plows in the prior art do not have a function of returning straws to fields, if the straws are returned to the fields before plowing, two links of plowing or rotary tillage after crushing are mostly needed, plowing and rotary tillage are separately carried out, and the efficiency of returning the straws to the fields of people is influenced.

Disclosure of Invention

The invention aims to provide a straw returning plow which can improve the efficiency of returning straws to the field of people;

the invention provides a straw returning plow, which comprises:

the suspension bracket is connected with the tractor;

the ploughshare component is connected with the suspension bracket and is positioned on one side of the suspension bracket, which is far away from the tractor;

the crushing device is positioned below the suspension bracket;

the driving device is connected with an output shaft of the tractor and is connected with the crushing device;

and the height adjusting mechanism is fixedly arranged on the crushing device and is respectively connected with the driving device and the suspension bracket.

As a further embodiment, the hanger comprises:

the frame body is connected with a suspension device of the tractor, one side of the frame body, which is far away from the tractor, is connected with the ploughshare component, and the crushing device is positioned below the frame body;

a limit for height ear for making height adjustment mechanism can carry out linear motion, prevent height adjustment mechanism and mounted frame phase separation sets up the side at the support body.

As another embodiment, a pulverizing apparatus includes:

a frame connected with the driving device;

the cutter shaft component penetrates through the frame and is rotatably connected with the frame, and the cutter shaft component is connected with the driving device.

As another embodiment, the driving device includes:

the gear transmission is arranged on the frame and is connected with an output shaft of the tractor;

and the transmission part is arranged on the frame, is connected with the gear transmission through a transmission shaft, and is connected with the height adjusting mechanism.

As a further embodiment, the height adjustment mechanism comprises:

a skate plate member connected to the frame;

and the slideway device is sleeved on the height limiting lug and is in sliding connection with the height limiting lug, and the slideway device is fixedly connected with the frame.

As a further embodiment, the slipper component comprises:

a slipper connected to the frame;

and the linear motion mechanism is arranged between the suspension bracket and the frame and is connected with the transmission part.

As another embodiment, the shoe portion includes:

the end part of one end of the contact piece is rotationally connected with the frame;

the sliding rail is arranged on the end part of the other end of the contact element;

the sensitive device is arranged on the frame and is connected with the sliding rail in a sliding way;

and the valve body is positioned above the sensitive device and is connected with the linear motion mechanism.

As a further embodiment, the sensitive apparatus comprises:

a fixing member disposed on the frame;

the hollow sleeve is fixedly arranged on the fixing piece;

the sensitive piece penetrates through the hollow sleeve and is connected with the hollow sleeve in a sliding manner;

wherein, the one end and the slide rail sliding connection of sensitive piece, the other end is located the below of valve body.

As a further embodiment, the sensitive part comprises:

the sliding block is connected with the sliding rail in a sliding manner;

the upright rod is connected with the hollow sleeve in a sliding manner, one end of the upright rod, which is close to the slide rail, is rotatably connected with the slide block, and the other end of the upright rod penetrates through the hollow sleeve;

one end of the bending piece is connected with one end of the vertical rod far away from the sliding block, and the other end of the bending piece is located below the valve body.

As another embodiment, the linear motion mechanism includes:

the oil tank is arranged on the frame;

the hydraulic pump is respectively connected with the transmission part and the valve body and is communicated with the oil tank;

and the hydraulic cylinder is arranged between the suspension bracket and the frame and is respectively communicated with the hydraulic pump and the hydraulic cylinder.

Advantageous effects

The invention provides a straw returning plow, which comprises a suspension bracket, a plowshare component, a crushing device, a driving device and a height adjusting mechanism, and compared with the prior art, the straw returning plow comprises the following components:

the suspension bracket is arranged to play a role in connection, so that the tractor can integrally pull the straw returning plow provided by the invention;

the plough share component is arranged, so that people can conveniently plough (dig) under the traction action of the tractor, and the people are prevented from ploughing (digging) manually;

the crushing device is arranged, so that people can crush the straws conveniently under the action of the driving device;

the driving device is arranged to transmit the power of the output shaft of the tractor to the crushing device and the subsequent height adjusting mechanism;

through the arrangement of the height adjusting mechanism, the height of the smashing device can be adjusted, and the smashing device is prevented from being damaged when encountering obstacles (such as stones) on soil in the process of smashing straws;

in addition, the suspension bracket, the ploughshare component, the crushing device, the driving device and the height adjusting mechanism are arranged into a whole, so that the operation mode of separately ploughing and rotary tillage by traditional people can be changed, and the straw returning efficiency of people is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of a plow for returning stalks to fields;

FIG. 2 is a side view schematic structural view of a straw returning plow provided by the present invention;

FIG. 3 is a front view of a straw returning plow;

FIG. 4 is a schematic view of a straw returning plow in a top view;

FIG. 5 is a schematic perspective view of the suspension bracket of the present invention;

FIG. 6 is a front view of the hanger of the present invention;

FIG. 7 is a perspective view of the frame of the present invention;

FIG. 8 is a perspective view of a cutter shaft member according to the present invention;

FIG. 9 is a schematic perspective view of an angle of the drive unit, the slipper and the hydraulic pump of the present invention;

FIG. 10 is a schematic perspective view of another angle of the drive unit, slipper and hydraulic pump of the present invention;

FIG. 11 is a schematic perspective view of the slide apparatus of the present invention;

FIG. 12 is a schematic perspective view of a sensor according to the present invention;

FIG. 13 is a perspective view of the bootie of the present invention;

FIG. 14 is a perspective view of the valve body and the sensing device of the present invention;

fig. 15 is a schematic perspective view of the fixing member, the hollow sleeve, the sliding block and the vertical rod of the present invention.

Description of reference numerals:

1. a suspension bracket; 11. a frame body; 12. a height limiting lug;

2. a ploughshare member;

3. a crushing device; 31. a frame; 32. a cutter shaft member;

4. a drive device; 41. a gear transmission; 42. a drive shaft; 43. a transmission member;

5. a height adjustment mechanism; 51. a skate plate member; 511. a boot slipper; 5111. a contact member; 5112. a slide rail; 5113. a sensitive device; 51131. a fixing member; 51132. a hollow sleeve; 51133. a sensitive piece; 511331, a slider; 511332, a vertical rod; 511333, bending pieces; 5114. a valve body; 512. a linear motion mechanism; 5121. an oil tank; 5122. a hydraulic pump; 5123. a hydraulic cylinder; 52. a slideway device.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-15, the invention provides a straw returning plow, which comprises a suspension bracket 1, a ploughshare component 2, a crushing device 3, a driving device 4 and a height adjusting mechanism 5, wherein the suspension bracket 1 is connected with a tractor; the ploughshare component 2 is connected with the suspension bracket 1, and the ploughshare component 2 is positioned on one side of the suspension bracket 1 far away from the tractor; the crushing device 3 is positioned below the suspension bracket 1; the driving device 4 is connected with an output shaft of the tractor and is connected with the crushing device 3; the height adjusting mechanism 5 is fixedly arranged on the crushing device 3, and the height adjusting mechanism 5 is respectively connected with the driving device 4 and the suspension bracket 1;

in actual use, the suspension bracket 1 is arranged to play a role in connection, so that the tractor can realize traction on the straw returning plow provided by the invention; the plough share component 2 is arranged, so that people can conveniently plough (dig) under the traction action of the tractor, and the people can be prevented from ploughing (digging) manually; the crushing device 3 is arranged, so that people can crush the straws conveniently under the action of the driving device 4; the driving device 4 is arranged to transmit the power of the output shaft of the tractor to the crushing device 3 and the subsequent height adjusting mechanism 5; through the arrangement of the height adjusting mechanism 5, the height of the crushing device 3 can be adjusted, and the crushing device 3 is prevented from being damaged when encountering obstacles (such as stones) on soil in the process of crushing straws;

in addition, the suspension bracket 1, the ploughshare part 2, the crushing device 3, the driving device 4 and the height adjusting mechanism 5 are arranged into a whole, so that the traditional operation mode of separately ploughing and rotary tillage by people can be changed, the operation time of people is saved, and the straw returning efficiency of people is improved;

as a further embodiment, the ploughshare part 2 comprises a frame body 21, a ploughing plow 22 and a depth wheel 23, the frame body 21 is rotatably connected with one side of the suspension frame 1 far away from the tractor; the plough 22 is arranged on one side of the frame body 21; the depth wheel 23 is arranged opposite to the plough 22; one side of the frame body 21 close to the tractor is rotatably connected with the suspension frame 1, the top of one end of the frame body far away from the tractor is connected with the top of the suspension frame 1 through a pull rod mechanism 6, the pull rod mechanism 6 is used for realizing the rotation of the frame body 21, and the plough 22 is arranged on the frame body 21, so that when the frame body 21 rotates, the plough 22 also rotates along with the rotation of the frame body, so that people can realize the angle adjustment of the plough 22 through the pull rod mechanism 6, and the ploughing (soil turning) is facilitated; wherein the content of the first and second substances,

the suspension bracket 1 comprises a bracket body 11 and a height limiting lug 12, the bracket body 11 is connected with a suspension device of a tractor, one side of the bracket body 11 far away from the tractor is connected with the ploughshare component 2, and the crushing device 3 is positioned below the bracket body 11; the height limiting lug 12 is arranged on the side surface of the frame body 11 and is used for enabling the height adjusting mechanism 5 to perform linear motion and preventing the height adjusting mechanism 5 from being separated from the suspension frame 1; in practical use, the frame body 11 mainly plays a role of connection so as to facilitate the installation of other subsequent parts; the height limiting lug 12 has the following specific functions: firstly, the subsequent installation of the height adjusting mechanism 5 is facilitated; secondly, the height adjusting mechanism 5 can be prevented from being separated from the height limiting lug 12 under the action of the driving device 4; it should be understood that the frame body 11 and the height-limiting lug 12 are only preferred, and in one embodiment, the suspension frame 1 can be configured into other suitable shapes and configurations according to actual needs by those skilled in the art as long as the corresponding function, function or effect can be achieved;

specifically, the crushing device 3 comprises a frame 31 and a cutter shaft component 32, wherein the frame 31 is connected with the driving device 4; the cutter shaft component 32 is arranged on the frame 31 in a penetrating way and is connected with the frame 31 in a rotating way, and the cutter shaft component 32 is connected with the driving device 4; in actual use, the frame 31 can serve two functions, firstly, facilitating the installation of the subsequent oil tank 5121; secondly, the device can play a role in shielding objects (such as dust, gravel and the like) on the ground from rising; it should be understood that the frame 31 and the knife shaft member 32 are only preferred, and in one embodiment, a person skilled in the art may also adopt other suitable arrangements according to actual needs, as long as the corresponding function, function or effect can be achieved; wherein the content of the first and second substances,

the driving device 4 comprises a gear transmission 41 and a transmission part 43, wherein the gear transmission 41 is arranged on the frame 31 and is connected with an output shaft of the tractor; the transmission part 43 is arranged on the frame 31, the transmission part 43 is connected with the gear transmission 41 through the transmission shaft 42, and the transmission part 43 is connected with the height adjusting mechanism 5; in actual use, the gearbox 41 acts to increase the speed of rotation of the tractor output shaft to provide sufficient power for the subsequent drive 4; because the transmission part 43 is connected with the gear speed changer 41 through the transmission shaft 42, and the transmission part 43 is connected with the height adjusting mechanism 5, when a tractor pulls the straw returning plow provided by the invention to move, the rotation of the output shaft of the tractor can drive the gear speed changer 41 to rotate, at the moment, the transmission shaft 42 connected with the gear speed changer 41 also rotates along with the rotation, and further drives the transmission part 43 to correspondingly rotate, and because the transmission part 43 is connected with the height adjusting mechanism 5, when the transmission part 43 rotates, the height adjusting mechanism 5 can move; it should be understood that the gear transmission 41 and the transmission component 43 are only preferred, and in one embodiment, those skilled in the art can also adopt other suitable arrangements according to actual needs, as long as the corresponding action, function or effect can be achieved;

it should be noted that, in practical use, the transmission component 43 may be a pulley transmission, a gear transmission or other suitable arrangement;

specifically, the height adjusting mechanism 5 includes a slipper plate member 51 and a runner device 52, the slipper plate member 51 being connected to the frame 31; the slideway device 52 is sleeved on the height limiting lug 12 and is connected with the height limiting lug 12 in a sliding way, and the slideway device 52 is fixedly connected with the frame 31; in practical use, the sliding shoe plate part 51 mainly plays a role in detecting and lifting an obstacle (such as a stone) on the ground, and specifically, when the straw returning plow provided by the invention moves, for example, when the obstacle (such as a stone) on the ground touches the sliding shoe plate part 51, the sliding shoe plate drives the crushing device 3, the driving device 4 and the slideway device 52 to move together in the vertical direction (i.e., the lifting function); it should be understood that the bootboard member 51 and the slideway device 52 are only preferred, and in one embodiment, those skilled in the art can also adopt other suitable arrangements according to actual needs, as long as the corresponding action or effect can be achieved;

further, the slipper plate member 51 includes a slipper 511 and a linear motion mechanism 512, the slipper 511 is connected to the frame 31; the linear motion mechanism 512 is arranged between the suspension bracket 1 and the frame 31 and is connected with the transmission part 43; in practical use, the function of the sliding shoe portion 511 is to perform a detection function, and the function is the same as above, and is not described in detail herein for saving space; the linear motion mechanism 512 is used for driving the crushing device 3, the driving device 4 and the slideway device 52 which are connected with the frame 31 to move together in the vertical direction, so that the crushing device 3 is prevented from being damaged when encountering obstacles (such as stones) on soil in the process of crushing straws; it should be understood that the bootie 511 and the linear motion mechanism 512 are only preferred, and in one embodiment, a person skilled in the art can also adopt other suitable arrangements according to actual needs, as long as the corresponding action, function or effect can be achieved; wherein the content of the first and second substances,

the sliding shoe portion 511 includes a contact member 5111, a sliding rail 5112, a sensitive device 5113, and a valve body 5114; one end of the contact member 5111 is rotatably connected to the frame 31; a slide rail 5112 is provided on the other end of the contact 5111; the sensitive device 5113 is arranged on the frame 31 and is connected with the sliding rail 5112 in a sliding manner; the valve body 5114 is positioned above the sensitive device 5113, and the valve body 5114 is connected with the linear motion mechanism 512; in practical use, when the contact member 5111 contacts an obstacle (such as a stone) on the ground, the sensitive device 5113 moves in a vertical direction, so that the sensitive device 5113 contacts the valve body 5114, and since the valve body 5114 is connected to the linear motion mechanism 512, when the sensitive device 5113 touches the valve body 5114, the linear motion mechanism 512 can be started through the valve body 5114, so as to drive the crushing device 3, the driving device 4 and the slideway device 52 to move together in the vertical direction; it should be understood that the contact member 5111, the sliding rail 5112, the sensitive device 5113 and the valve body 5114 are only preferred, and in one embodiment, a person skilled in the art can adopt other suitable arrangements according to actual needs as long as the corresponding action, function or effect can be achieved;

then, the sensitive device 5113 comprises a fixing member 51131, a hollow sleeve 51132 and a sensitive member 51133; the fixing member 51131 is provided on the frame 31; the hollow sleeve 51132 is fixedly arranged on the fixing member 51131; the sensitive piece 51133 penetrates through the hollow sleeve 51132 and is connected with the hollow sleeve 51132 in a sliding way; one end of the sensitive piece 51133 is slidably connected to the sliding rail 5112, and the other end is located below the valve body 5114; in practical use, the fixing member 51131 plays a role of realizing the fixing of the hollow sleeve 51132 so as to facilitate the subsequent operation of other parts of the sensitive device 5113; the hollow sleeve 51132 functions to control the movement of the sensitive member 51133 in the axial direction of the hollow sleeve 51132; the sensitive piece 51133 plays a role in starting the valve body 5114, specifically, when the contact piece 5111 contacts with an obstacle (such as a stone) on the ground, the contact piece 5111 rotates around the end of the contact piece 5111 close to the tractor, when the contact piece 5111 rotates, the contact piece 5111 can drive the sliding rail 5112 thereon to move, and further drive the sensitive piece 51133 connected with the sliding rail 5112 to move, and through the arrangement of the sliding rail 5112 and the hollow sleeve 51132, the sensitive piece 51133 is driven to move in the vertical direction, so that the sensitive piece 51133 contacts with the valve body 5114 in the vertical movement process, and further the sensitive piece 51133 can start the linear movement mechanism 512 through the valve body 5114; it should be understood that the fixing member 51131, the hollow sleeve 51132 and the sensitive member 51133 are only preferred, and in one embodiment, a person skilled in the art can adopt other suitable arrangements according to actual needs, as long as the corresponding function, function or effect can be achieved; wherein the content of the first and second substances,

the sensitive piece 51133 comprises a sliding block 511331, an upright post 511332 and a bending piece 511333, wherein the sliding block 511331 is connected with the sliding rail 5112 in a sliding manner; the upright 511332 is slidably connected to the hollow sleeve 51132, and after one end of the upright 511332 close to the slide rail 5112 is rotatably connected to the slide block 511331, the other end of the upright is inserted through the hollow sleeve 51132; one end of the bending piece 511333 is connected with one end of the upright rod 511332 far away from the slide block 511331, and the other end is positioned below the valve body 5114; in practical use, by arranging the sliding block 511331, the upright post 511332 and the bending piece 511333, when an obstacle (such as a stone) on the ground touches the contact piece 5111, the sensitive piece 51133 can move in the vertical direction; it should be understood that the sliding block 511331, the upright post 511332 and the bending piece 511333 are only preferred, and in one embodiment, a person skilled in the art can adopt other suitable arrangements according to actual needs, as long as the corresponding function, function or effect can be achieved;

as another embodiment, the linear motion mechanism 512 includes an oil tank 5121, a hydraulic pump 5122, and a hydraulic cylinder 5123, the oil tank 5121 being provided on the frame 31; a hydraulic pump 5122 connected to the transmission member 43 and the valve body 5114, respectively, and the hydraulic pump 5122 communicating with the oil tank 5121; a hydraulic cylinder 5123 is arranged between the suspension bracket 1 and the frame 31, and the hydraulic cylinder 5123 is respectively communicated with a hydraulic pump 5122 and the hydraulic cylinder 5123; in practical use, when the contact member 5111 contacts with an obstacle (such as a stone) on the ground, the contact member 5111 drives the sensitive device 5113 to move in the vertical direction, so that the sensitive device 5113 contacts with the valve body 5114, and since the valve body 5114 is connected with the valve body 5114, when the contact member 5111 contacts with the obstacle (such as a stone) on the ground, the hydraulic cylinder 5123 can be started to drive the crushing device 3, the driving device 4 and the slideway device 52 to move together in the vertical direction; it should be understood that the oil tank 5121, the hydraulic pump 5122 and the hydraulic cylinder 5123 are only preferred, and in one embodiment, a person skilled in the art may also adopt other suitable arrangements according to actual needs, as long as the corresponding action, function or effect can be achieved;

of course, in order to facilitate people to mount the straw returning plow provided by the invention on a tractor, the straw returning plow further comprises a distance adjusting mechanism 7, and as another embodiment, the distance adjusting mechanism 7 is used for adjusting the position relation of the suspension bracket 1 (such as the height of the suspension bracket 1 and/or the distance between the suspension bracket 1 and the tractor);

it should be noted that the distance adjusting mechanism 7 can be a hydraulic cylinder, an air cylinder or other suitable arrangement as long as the corresponding function, function or effect can be achieved, however, it should be understood by those skilled in the art that if the distance adjusting mechanism 7 is provided, both ends of the hydraulic cylinder 5123 must be rotatably connected with the suspension bracket 1 and the frame 31;

according to the specific principle, in the actual use process, when a tractor pulls the straw returning plow provided by the invention, the driving device 4 is connected with the output shaft of the tractor and the crushing device 3; therefore, under the action of the driving device, the crushing device can crush the straws, and the ploughshare component 2 is arranged on one side of the suspension bracket 1 away from the tractor, so that the ploughshare component can plough the ground (dig) after the straws are crushed; when the contact member 5111 of the height adjusting mechanism 5 contacts with an obstacle (such as a stone) on the ground, the contact member 5111 drives the sensitive device 5113 to move in the vertical direction, so that the sensitive device 5113 contacts with the valve body 5114, and since the valve body 5114 is connected with the hydraulic pump 5122, when the contact member 5111 contacts with the obstacle (such as a stone) on the ground, the hydraulic cylinder 5123 can be started to drive the crushing device 3, the driving device 4 and the slideway device 52 to move together in the vertical direction; when an obstacle (e.g., a stone) on the ground does not contact the contact member 5111 of the height adjusting mechanism 5, the crushing apparatus 3, the driving apparatus 4, and the chute apparatus 52 are returned to normal by gravity.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.