A straw returning plow

Abstract

The present invention relates to the technical field of agricultural machinery, and in particular to a straw returning plow; the straw returning plow comprises: a suspension frame connected to a tractor; a plowshare component connected to the suspension frame, and the plowshare component is located on a side of the suspension frame away from the tractor; a crushing device located below the suspension frame; a driving device connected to an output shaft of the tractor and to the crushing device; a height adjustment mechanism fixedly arranged on the crushing device, and the height adjustment mechanism is respectively connected to the driving device and the suspension frame; the straw returning plow provided by the present invention can improve the efficiency of people returning straw to the field.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a straw returning plow. Background Art

[0002] Returning straw to the field is a method of applying straw that is not suitable for direct feed directly to the soil directly or after it has been piled up and decomposed. The process of agricultural production is also a process of energy conversion. Crops need to continuously consume energy during their growth, and they also need to continuously replenish energy and continuously adjust the content of water, fertilizer, gas, and heat in the soil. Straw contains a large amount of fresh organic materials. After being returned to the farmland, it can be converted into organic matter and fast-acting nutrients after a period of decomposition. It not only improves the physical and chemical properties of the soil, but also supplies certain nutrients such as potassium. Returning straw to the field can promote agricultural water conservation, cost savings, increased production, and increased efficiency, and should also be given full attention in environmental protection and sustainable agricultural development.

[0003] Most of the plows in the prior art do not have the function of returning straw to the field. If the straw is to be returned to the field before plowing, most of them need to adopt two steps of crushing first and then plowing or rotary tillage. Plowing and rotary tillage are carried out separately, which affects people's efficiency of returning straw to the field. Summary of the invention

[0004] The purpose of the present invention is to provide a straw returning plow, which can improve the efficiency of returning straw to the field.

[0005] The present invention provides a straw returning plow, comprising:

[0006] A suspension frame connected to the tractor;

[0007] A plowshare component is connected to the suspension frame, and the plowshare component is located on a side of the suspension frame away from the tractor;

[0008] A crushing device, located below the suspension frame;

[0009] A driving device connected to the output shaft of the tractor and connected to the pulverizing device;

[0010] The height adjustment mechanism is fixedly arranged on the pulverizing device, and the height adjustment mechanism is respectively connected with the driving device and the suspension frame.

[0011] As another embodiment, the suspension bracket includes:

[0012] The frame is connected to the suspension device of the tractor, the side of the frame away from the tractor is connected to the plowshare component, and the crushing device is located below the frame;

[0013] A height limiting ear is used to enable the height adjustment mechanism to perform linear motion and prevent the height adjustment mechanism from being separated from the suspension frame, and is arranged on the side of the frame body.

[0014] As another embodiment, the pulverizing device comprises:

[0015] a frame connected to the driving device;

[0016] The knife shaft component is inserted into the frame and rotatably connected with the frame, and the knife shaft component is connected with the driving device.

[0017] As another embodiment, the driving device includes:

[0018] A gear transmission is disposed on the frame and connected to the output shaft of the tractor;

[0019] The transmission component is arranged on the frame, the transmission component is connected with the gear transmission through a transmission shaft, and the transmission component is connected with the height adjustment mechanism.

[0020] As another embodiment, the height adjustment mechanism includes:

[0021] A skid plate component connected to the frame;

[0022] The slide device is sleeved on the height limiting ear and slidably connected with the height limiting ear, and the slide device is fixedly connected with the frame.

[0023] As another embodiment, the shoe plate component includes:

[0024] A sliding shoe portion connected to the frame;

[0025] The linear motion mechanism is arranged between the suspension frame and the frame and connected with the transmission component.

[0026] As another embodiment, the sliding shoe portion includes:

[0027] A contact piece, one end of which is rotatably connected to the frame;

[0028] A slide rail is arranged on the other end of the contact piece;

[0029] A sensitive device is arranged on the frame and is slidably connected to the slide rail;

[0030] The valve body is located above the sensitive device, and the valve body is connected to the linear motion mechanism.

[0031] As another embodiment, the sensitive device includes:

[0032] A fixing part is arranged on the frame;

[0033] A hollow sleeve fixedly arranged on the fixing member;

[0034] The sensitive part penetrates through the hollow sleeve and is slidably connected with the hollow sleeve;

[0035] One end of the sensitive part is slidably connected to the slide rail, and the other end is located below the valve body.

[0036] As another embodiment, the sensitive part includes:

[0037] A slider, slidably connected to the slide rail;

[0038] The vertical rod is slidably connected with the hollow sleeve, and after one end of the vertical rod close to the slide rail is rotatably connected with the slider, the other end of the vertical rod passes through the hollow sleeve;

[0039] The bending part has one end connected to the end of the vertical rod away from the slider, and the other end is located below the valve body.

[0040] As another embodiment, the linear motion mechanism includes:

[0041] a fuel tank, disposed on the frame;

[0042] A hydraulic pump is connected to the transmission component and the valve body respectively, and the hydraulic pump is connected to the oil tank;

[0043] The hydraulic cylinder is arranged between the suspension frame and the frame, and the hydraulic cylinder is communicated with the hydraulic pump and the hydraulic cylinder respectively.

[0044] Beneficial Effects

[0045] The straw returning plow provided by the present invention comprises a suspension frame, a plowshare component, a crushing device, a driving device and a height adjustment mechanism. Compared with the prior art:

[0046] By providing a suspension frame to play a connecting role, the tractor can achieve the overall pulling of the straw returning plow provided by the present invention;

[0047] By providing the plowshare component, people can complete plowing (turning the soil) under the traction of the tractor, avoiding people plowing (turning the soil) manually;

[0048] By setting up a crushing device, people can crush the straw under the action of the driving device later;

[0049] By providing a driving device to transmit the power of the tractor output shaft to the crushing device and the subsequent height adjustment mechanism;

[0050] By setting the height adjustment mechanism, the height of the crushing device can be adjusted to prevent the crushing device from encountering obstacles (such as stones) on the soil and being damaged during the process of crushing the straw;

[0051] Furthermore, the present invention can change the traditional separate plowing and rotary tillage operation mode by integrating the suspension frame, the plowshare component, the crushing device, the driving device and the height adjustment mechanism into a whole, thereby improving the efficiency of returning straw to the field. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 A schematic diagram of the three-dimensional structure of a straw returning plow provided by the present invention;

[0054] Figure 2 A schematic diagram of the structure of a straw returning plow provided by the present invention in a side view;

[0055] Figure 3 A schematic diagram of the structure of a straw returning plow in a front view provided by the present invention;

[0056] Figure 4 A schematic diagram of the structure of a straw returning plow in a top view provided by the present invention;

[0057] Figure 5 It is a schematic diagram of the three-dimensional structure of the suspension frame in the present invention;

[0058] Figure 6 It is a schematic diagram of the structure of the suspension bracket in the present invention in the front view direction;

[0059] Figure 7 It is a schematic diagram of the three-dimensional structure of the frame in the present invention;

[0060] Figure 8 It is a three-dimensional structural schematic diagram of the knife shaft component in the present invention;

[0061] Fig. 9 A schematic diagram of the three-dimensional structure of the driving device, the sliding shoe portion and the hydraulic pump in the present invention from one angle;

[0062] Fig.10 It is a three-dimensional structural schematic diagram of the driving device, the sliding shoe part and the hydraulic pump in the present invention from another angle;

[0063] Fig.11 It is a schematic diagram of the three-dimensional structure of the slideway device in the present invention;

[0064] Fig.12 It is a schematic diagram of the three-dimensional structure of the sensitive component in the present invention;

[0065] Fig.13 It is a schematic diagram of the three-dimensional structure of the sliding shoe part of the present invention;

[0066] Fig.14 It is a three-dimensional structural schematic diagram of the sensitive device and the valve body in the present invention;

[0067] Fig.15 It is a schematic diagram of the three-dimensional structure of the fixing member, the hollow sleeve, the sliding block and the vertical rod in the present invention.

[0068] Description of reference numerals:

[0069] 1. Suspension frame; 11. Frame body; 12. Height limiting ears;

[0070] 2. Ploughshare parts;

[0071] 3. Crushing device; 31. Frame; 32. Cutter shaft component;

[0072] 4. driving device; 41. gear transmission; 42. transmission shaft; 43. transmission parts;

[0073] 5. Height adjustment mechanism; 51. Sliding shoe plate component; 511. Sliding shoe part; 5111. Contact piece; 5112. Slide rail; 5113. Sensitive device; 51131. Fixing piece; 51132. Hollow sleeve; 51133. Sensitive piece; 511331. Sliding block; 511332. Vertical rod; 511333. Bending piece; 5114. Valve body; 512. Linear motion mechanism; 5121. Oil tank; 5122. Hydraulic pump; 5123. Hydraulic cylinder; 52. Slide device. DETAILED DESCRIPTION

[0074] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0076] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] like Figure 1-Figure 15 The straw returning plow provided by the present invention comprises a suspension frame 1, a plowshare component 2, a crushing device 3, a driving device 4 and a height adjustment mechanism 5, wherein the suspension frame 1 is connected to a tractor; the plowshare component 2 is connected to the suspension frame 1, and the plowshare component 2 is located on a side of the suspension frame 1 away from the tractor; the crushing device 3 is located below the suspension frame 1; the driving device 4 is connected to an output shaft of the tractor and is connected to the crushing device 3; the height adjustment mechanism 5 is fixedly arranged on the crushing device 3, and the height adjustment mechanism 5 is respectively connected to the driving device 4 and the suspension frame 1;

[0078] In actual use, by setting the suspension frame 1 to play a connecting role, the tractor can achieve the traction of the straw returning plow provided by the present invention; by setting the plowshare component 2, people can complete the plowing (turning the soil) under the traction of the tractor, avoiding people to plow the land (turning the soil) manually; by setting the crushing device 3, people can subsequently crush the straw under the action of the driving device 4; by setting the driving device 4, the power of the tractor output shaft can be transmitted to the crushing device 3 and the subsequent height adjustment mechanism 5; by setting the height adjustment mechanism 5, the height of the crushing device 3 can be adjusted to prevent the crushing device 3 from encountering obstacles (such as stones) on the soil during the process of crushing the straw and being damaged;

[0079] Furthermore, the present invention can change the traditional working mode of separate plowing and rotary tillage by arranging the suspension frame 1, the plowshare component 2, the crushing device 3, the driving device 4, and the height adjustment mechanism 5 as a whole, thereby saving people's working time and improving people's efficiency of returning straw to the field;

[0080] As another embodiment, the plowshare component 2 includes a frame 21, a tillage plow 22 and a depth-limiting wheel 23. The frame 21 is rotatably connected to the side of the suspension frame 1 away from the tractor; the tillage plow 22 is arranged on one side of the frame 21; the depth-limiting wheel 23 is arranged opposite to the tillage plow 22; the side of the frame 21 close to the tractor is rotatably connected to the suspension frame 1, and the top of the end of the frame away from the tractor is connected to the top of the suspension frame 1 through a pull rod mechanism 6, and the pull rod mechanism 6 is used to realize the rotation of the frame 21. Since the tillage plow 22 is arranged on the frame 21, when the frame 21 rotates, the tillage plow 22 also rotates accordingly, so that people can adjust the angle of the tillage plow 22 through the pull rod mechanism 6, which is convenient for people to plow the land (turn the soil); wherein,

[0081] The suspension frame 1 includes a frame body 11 and a height limiting ear 12, wherein the frame body 11 is connected to the suspension device of the tractor, and the side of the frame body 11 away from the tractor is connected to the plowshare component 2, and the crushing device 3 is located below the frame body 11; the height limiting ear 12 is arranged on the side of the frame body 11, and is used to enable the height adjustment mechanism 5 to perform linear motion and prevent the height adjustment mechanism 5 from being separated from the suspension frame 1; in actual use, the role of the frame body 11 is mainly to connect, so as to facilitate the subsequent installation of other parts; the specific role of the height limiting ear 12 is: first, to facilitate the subsequent installation of the height adjustment mechanism 5; second, to prevent the height adjustment mechanism 5 from being separated from the height limiting ear 12 under the action of the driving device 4; it should be understood that the frame body 11 and the height limiting ear 12 are only preferred. In one embodiment, those skilled in the art can also set the suspension frame 1 to other suitable shapes and structures according to actual needs, as long as the corresponding role, function or effect can be achieved;

[0082] Specifically, the crushing device 3 includes a frame 31 and a knife shaft component 32, and the frame 31 is connected to the driving device 4; the knife shaft component 32 is inserted into the frame 31 and is rotatably connected to the frame 31, and the knife shaft component 32 is connected to the driving device 4; in actual use, the frame 31 can play two roles. First, it is convenient for the installation of the subsequent oil tank 5121; second, it can play a role in blocking the objects on the ground (such as dust or gravel, etc.) from rising; it should be understood that the frame 31 and the knife shaft component 32 are only preferred. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding role, function or effect can be achieved; wherein,

[0083] The driving device 4 includes a gear transmission 41 and a transmission component 43. The gear transmission 41 is arranged on the frame 31 and connected to the output shaft of the tractor; the transmission component 43 is arranged on the frame 31, and the transmission component 43 is connected to the gear transmission 41 through the transmission shaft 42, and the transmission component 43 is connected to the height adjustment mechanism 5; in actual use, the gear transmission 41 is used to increase the rotation speed of the tractor output shaft to provide sufficient power for the subsequent driving device 4; since the transmission component 43 is connected to the gear transmission 41 through the transmission shaft 42, and the transmission component 43 is connected to the height adjustment mechanism 5, the tractor pulls the present invention. When the straw returning plow provided by Ming moves, the rotation of the tractor output shaft drives the gearbox 41 to rotate, and the transmission shaft 42 connected to the gearbox 41 also rotates, thereby driving the transmission component 43 to rotate accordingly, and because the transmission component 43 is connected to the height adjustment mechanism 5, when the transmission component 43 rotates, the height adjustment mechanism 5 can move; it should be understood that the gearbox 41 and the transmission component 43 are only preferred. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding role, function or effect can be achieved;

[0084] It should be noted that, in actual use, the transmission component 43 may be a pulley transmission, a gear transmission or other suitable settings;

[0085] Specifically, the height adjustment mechanism 5 includes a sliding shoe plate component 51 and a slide device 52, wherein the sliding shoe plate component 51 is connected to the frame 31; the slide device 52 is sleeved on the height limiting ear 12 and slidably connected to the height limiting ear 12, and the slide device 52 is fixedly connected to the frame 31; in actual use, the sliding shoe plate component 51 mainly plays the role of detecting obstacles on the ground (such as stones) and lifting. Specifically, when a straw returning plow provided by the present invention is moving, if an obstacle on the ground (such as a stone) touches the sliding shoe plate component 51, the sliding shoe plate will drive the crushing device 3, the driving device 4 and the slide device 52 to move in the vertical direction together (i.e., lifting); it should be understood that the sliding shoe plate component 51 and the slide device 52 are only preferred. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding function or effect can be achieved;

[0086] Furthermore, the sliding shoe plate component 51 includes a sliding shoe portion 511 and a linear motion mechanism 512, wherein the sliding shoe portion 511 is connected to the frame 31; the linear motion mechanism 512 is arranged between the suspension frame 1 and the frame 31, and is connected to the transmission component 43; in actual use, the sliding shoe portion 511 plays a detection role, and the role is the same as above. In order to save space, it will not be described in detail here; the role of the linear motion mechanism 512 is to drive the crushing device 3, the driving device 4 and the slide device 52 connected to the frame 31 to move in the vertical direction, thereby preventing the crushing device 3 from encountering obstacles (such as stones) on the soil during the process of crushing the straw and being damaged; it should be understood that the sliding shoe portion 511 and the linear motion mechanism 512 are only preferred. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding role, function or effect can be achieved; wherein,

[0087] The sliding shoe portion 511 includes a contact piece 5111, a slide rail 5112, a sensitive device 5113 and a valve body 5114; one end of the contact piece 5111 is rotatably connected to the frame 31; the slide rail 5112 is arranged on the other end of the contact piece 5111; the sensitive device 5113 is arranged on the frame 31 and is slidably connected to the slide rail 5112; the valve body 5114 is located above the sensitive device 5113, and the valve body 5114 is connected to the linear motion mechanism 512; in actual use, when the contact piece 5111 contacts an obstacle on the ground (such as a stone), the sensitive device 5113 will move in the vertical direction, thereby causing The sensitive device 5113 is in contact with the valve body 5114. 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 activated through the valve body 5114 to drive the crushing device 3, the driving device 4 and the slide device 52 to move in the vertical direction together; it should be understood that the contact member 5111, the slide rail 5112, the sensitive device 5113 and the valve body 5114 are only preferred. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding role, function or effect can be achieved;

[0088] Then, the sensitive device 5113 includes a fixing member 51131, a hollow sleeve 51132 and a sensitive member 51133; the fixing member 51131 is arranged on the frame 31; the hollow sleeve 51132 is fixedly arranged on the fixing member 51131; the sensitive member 51133 penetrates the hollow sleeve 51132 and is slidably connected with the hollow sleeve 51132; wherein one end of the sensitive member 51133 is slidably connected with the slide rail 5112, and the other end is located at the valve body 51 14; in actual use, the fixing member 51131 serves to fix the hollow sleeve 51132, so as to facilitate the subsequent operation of other parts of the sensitive device 5113; the hollow sleeve 51132 serves to control the axial movement of the sensitive member 51133 in the hollow sleeve 51132; the sensitive member 51133 serves to start the valve body 5114. Specifically, when the contact member 5111 is in contact with an obstacle on the ground (such as When the contact member 5111 contacts the valve body 5114, the contact member 5111 will rotate with the end of the contact member 5111 close to the tractor as the center. When the contact member 5111 rotates, the contact member 5111 can drive the slide rail 5112 thereon to move, thereby driving the sensitive member 51133 connected to the slide rail 5112 to move, and through the setting of the slide rail 5112 and the hollow sleeve 51132, the sensitive member 51133 is driven to move in the vertical direction, so that the sensitive member 51133 contacts the valve body 5114 during the vertical movement, thereby facilitating the sensitive member 51133 to start the linear motion 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. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding role, function or effect can be achieved; wherein,

[0089] The sensitive part 51133 includes a slider 511331, a vertical rod 511332 and a bending part 511333. The slider 511331 is slidably connected to the slide rail 5112; the vertical rod 511332 is slidably connected to the hollow sleeve 51132, and after one end of the vertical rod 511332 close to the slide rail 5112 is rotatably connected to the slider 511331, the other end passes through the hollow sleeve 51132; one end of the bending part 511333 is connected to the end of the vertical rod 511332 away from the slider 511331, and the other end is located at the valve body 511 4; in actual use, by setting the slider 511331, the vertical rod 511332 and the bending piece 511333, when the obstacle on the ground (such as a stone) touches the contact piece 5111, the sensitive piece 51133 can move in the vertical direction; it should be understood that the slider 511331, the vertical rod 511332 and the bending piece 511333 are only preferred. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding role, function or effect can be achieved;

[0090] 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 is arranged on the frame 31; the hydraulic pump 5122 is connected to the transmission component 43 and the valve body 5114, respectively, and the hydraulic pump 5122 is communicated with the oil tank 5121; the hydraulic cylinder 5123 is arranged between the suspension frame 1 and the frame 31, and the hydraulic cylinder 5123 is communicated with the hydraulic pump 5122 and the hydraulic cylinder 5123, respectively; in actual use, when the contact member 5111 contacts an obstacle on the ground (such as a stone), it will drive the sensitive device 5113 to move in the vertical direction. The contact member 5111 contacts the obstacle on the ground (such as a stone), and the hydraulic cylinder 5123 is activated to drive the crushing device 3, the driving device 4 and the slide device 52 to move 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. In one embodiment, those skilled in the art can also adopt other suitable settings according to actual needs, as long as the corresponding role, function or effect can be achieved.

[0091] Of course, in order to facilitate people to install the straw returning plow provided by the present invention on a tractor, a distance adjustment mechanism 7 is also included. As another embodiment, the distance adjustment mechanism 7 is used to adjust the position relationship of the suspension frame 1 (such as the height of the suspension frame 1 and / or the distance between the suspension frame 1 and the tractor, etc.);

[0092] It should be noted that the distance adjustment mechanism 7 can be a hydraulic cylinder, a pneumatic cylinder or other suitable settings, as long as the corresponding role, function or effect can be achieved. However, those skilled in the art should understand that if the distance adjustment mechanism 7 is provided, both ends of the hydraulic cylinder 5123 must be rotatably connected to the suspension bracket 1 and the frame 31;

[0093] The specific principle is that in actual use, when a tractor is pulling the straw-returning plow provided by the present invention, the driving device 4 is connected to the output shaft of the tractor and is connected to the crushing device 3; therefore, under the action of the driving device, the crushing device can crush the straw, and since the plowshare component 2 is arranged on the side of the suspension frame 1 away from the tractor, after the straw is crushed, the plowshare component can plow the land (turn the soil); when the contact piece 5111 of the height adjustment mechanism 5 contacts an obstacle on the ground (such as a stone), the contact piece 5111 will drive the sensitive device 5113 to move upward. It moves in the vertical direction, so that the sensitive device 5113 contacts the valve body 5114. Since the valve body 5114 is connected to the hydraulic pump 5122, when the contact piece 5111 contacts the obstacle on the ground (such as stone), the hydraulic cylinder 5123 can be started to drive the crushing device 3, the driving device 4 and the slide device 52 to move in the vertical direction; when the obstacle on the ground (such as stone) does not contact the contact piece 5111 of the height adjustment mechanism 5, the crushing device 3, the driving device 4 and the slide device 52 return to normal under the action of gravity.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A straw returning plow, characterized in that: include: A suspension frame (1) connected to the tractor; A ploughshare component (2) connected to the suspension frame (1), and the ploughshare component (2) is located on a side of the suspension frame (1) away from the tractor; A crushing device (3) is located below the suspension frame (1); The pulverizing device (3) comprises: a frame (31) connected to a driving device (4); A driving device (4) connected to the output shaft of the tractor and connected to the crushing device (3); A height adjustment mechanism (5) is fixedly arranged on the pulverizing device (3), and the height adjustment mechanism (5) is respectively connected to the driving device (4) and the suspension frame (1); A height limiting ear (12) for enabling the height adjustment mechanism (5) to perform linear motion and preventing the height adjustment mechanism (5) from being separated from the suspension frame (1), and arranged on a side of the frame body (11); The height adjustment mechanism (5) comprises: A sliding shoe plate component (51) connected to the frame (31); A slide device (52) is sleeved on the height limiting ear (12) and is slidably connected to the height limiting ear (12), and the slide device (52) is fixedly connected to the frame (31); The sliding shoe plate component (51) comprises: A sliding shoe portion (511) connected to the frame (31); A linear motion mechanism (512) is arranged between the suspension frame (1) and the frame (31) and is connected to a transmission component (43); The sliding shoe portion (511) comprises: A contact piece (5111), one end of which is rotatably connected to the frame (31); A slide rail (5112) is arranged on the other end of the contact member (5111); A sensitive device (5113) is arranged on the frame (31) and is slidably connected to the slide rail (5112); The sensitive device (5113) comprises: A fixing member (51131) is arranged on the frame (31); A hollow sleeve (51132) is fixedly disposed on the fixing member (51131); A valve body (5114) is located above the sensitive device (5113), and the valve body (5114) is connected to the linear motion mechanism (512); The linear motion mechanism (512) comprises: An oil tank (5121) is arranged on the frame (31); A hydraulic pump (5122) is connected to the transmission component (43) and the valve body (5114) respectively, and the hydraulic pump (5122) is in communication with the oil tank (5121); A hydraulic cylinder (5123) is arranged between the suspension frame (1) and the frame (31), and the hydraulic cylinder (5123) is respectively connected to the hydraulic pump (5122) and the hydraulic cylinder (5123); When the contact member (5111) contacts an obstacle on the ground, the hydraulic cylinder (5123) is activated to drive the crushing device (3), the driving device (4) and the slide device (52) to move in the vertical direction; When the obstacle on the ground does not contact the contact piece (5111) of the height adjustment mechanism (5), the crushing device (3), the driving device (4) and the slide device (52) return to normal under the action of gravity.

2. A straw returning plow according to claim 1, characterized in that: The suspension frame (1) comprises: A frame (11) is connected to the suspension device of the tractor, a side of the frame (11) away from the tractor is connected to the ploughshare component (2), and the crushing device (3) is located below the frame (11).

3. A straw returning plow according to claim 2, characterized in that: The pulverizing device (3) comprises: The knife shaft component (32) is inserted into the frame (31) and is rotatably connected to the frame (31), and the knife shaft component (32) is connected to the driving device (4).

4. A straw returning plow according to claim 3, characterized in that: The driving device (4) comprises: A gear transmission (41) is arranged on the frame (31) and connected to the output shaft of the tractor; A transmission component (43) is arranged on the frame (31); the transmission component (43) is connected to the gear transmission (41) via a transmission shaft (42); and the transmission component (43) is connected to the height adjustment mechanism (5).

5. The straw returning plow according to claim 1, characterized in that: The sensitive device (5113) further comprises: A sensitive member (51133) passes through the hollow sleeve (51132) and is slidably connected to the hollow sleeve (51132); One end of the sensitive component (51133) is slidably connected to the slide rail (5112), and the other end is located below the valve body (5114).

6. A straw returning plow according to claim 5, characterized in that: The sensitive part (51133) comprises: A slider (511331) is slidably connected to the slide rail (5112); A vertical rod is slidably connected to the hollow sleeve (51132), and after one end of the vertical rod close to the slide rail (5112) is rotatably connected to the slider (511331), the other end of the vertical rod passes through the hollow sleeve (51132); The bending piece (511333) has one end connected to the end of the vertical rod away from the sliding block (511331), and the other end is located below the valve body (5114).

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