Transmission system of straw crushing and returning machine

Abstract

The invention discloses a transmission system of a straw crushing and returning machine, including a first cutter disc, a second cutter disc, a crushing and returning machine frame supported by a support wheel, a transmission mechanism and a tractor, wherein the first cutter disc and the second cutter disc smaller than the diameter of the first cutter disc are installed in the internal space of the crushing and returning machine frame, the transmission mechanism is connected to the power output shaft of the tractor to drive the first cutter disc and the second cutter disc to rotate, the transmission mechanism includes a first cutter disc transmission part, a second cutter disc transmission part and a coupling, the first cutter disc transmission part is connected to the first cutter disc, and the second cutter disc transmission part is connected to the second cutter disc; the first cutter disc transmission part and the second cutter disc transmission part are connected to form an integral body through a coupling, and the integral body is L-shaped. The present invention adopts different transmission parts for driving cutter discs of different sizes, and is connected as a whole, and the integral body forms an L-shape, and only one power input provides driving power, which is suitable for the planting mode of one film and six rows of machine-picked cotton, so that the transmission is reliable and stable.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, and more particularly to a transmission system of a straw crushing and returning machine to the field. Background Art

[0002] Straw crushing and returning to the field can improve the soil structure of farmland, increase the content of soil organic matter, and prevent soil compaction. It is an important process in cotton planting. Straw crushing and returning machines have the advantages of high working efficiency and low energy consumption, and have been widely used in the process of straw crushing and returning to the field. The existing straw returning machines have two cutting discs, the purpose of which is to increase the cutting width and improve working efficiency.

[0003] However, the two cutting discs of the existing straw return machine are symmetrically distributed, and the two discs have the same structure and size. This structure cannot meet the straw crushing and returning requirements of the current machine-picked cotton 66+10cm planting pattern, because the two rows in the middle are just in the middle of the two discs and cannot be crushed, while the two rows of straw on both sides are on the outside of the two discs, and the crushing effect is not good. The transmission mechanism of this structure is characterized in that the transmission shaft is separated from the middle to both ends (shaped like a T), driving the two discs to rotate, and the transmission system is symmetrically distributed. Accordingly, the transmission mechanism is not suitable for the machine-picked cotton one-film six-row planting pattern.

[0004] Therefore, providing a transmission system for a straw crushing and returning machine suitable for a one-film six-row planting pattern of machine-picked cotton is an issue that needs to be urgently addressed by technicians in this field. Summary of the invention

[0005] In view of this, the present invention provides a transmission system of a straw crushing and returning machine, aiming to solve one of the above-mentioned technical problems in the prior art at least to a certain extent.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A transmission system of a straw pulverizing and returning machine comprises a first cutter disc, a second cutter disc, a pulverizing and returning machine frame supported by a support wheel, a transmission mechanism and a tractor, wherein the first cutter disc and the second cutter disc having a diameter smaller than that of the first cutter disc are installed in an inner space of the pulverizing and returning machine frame, the transmission mechanism is connected to a power output shaft of the tractor to drive the first cutter disc and the second cutter disc to rotate, and the transmission mechanism comprises a first cutter disc transmission part, a second cutter disc transmission part and a coupling,

[0008] The first cutter disc transmission part is connected to the first cutter disc transmission part, and the second cutter disc transmission part is connected to the second cutter disc transmission part; the first cutter disc transmission part and the second cutter disc transmission part are both fixed on the upper part of the frame of the crushing and returning machine, and the first cutter disc transmission part and the second cutter disc transmission part are connected into a whole through the coupling, and the whole is L-shaped.

[0009] Furthermore, the first cutter disc transmission unit includes a first cutter disc fixing seat, a first bearing seat, a first gear box, a first clutch group and a power input shaft.

[0010] The first cutter disc fixing seat is fixed on the frame of the crushing and returning machine; the first bearing seat is installed on the side of the first cutter disc fixing seat close to the tractor, and the first gear box is installed on the other side of the first cutter disc fixing seat, and the lower part of the first gear box is connected to the first cutter disc by transmission; the first clutch group is installed between the first bearing seat and the first gear box, and the first clutch group is connected to the first gear box by transmission; the power input shaft passes through the first clutch group, and one end of the power input shaft is installed on the first bearing seat and is connected to the power output shaft by a coupling, and the other end is connected to the first gear box by transmission;

[0011] The second cutter disc transmission part comprises a second cutter disc fixing seat, a second bearing seat, a second gear box and a second clutch group. The second cutter disc fixing seat is fixed on the frame of the crushing and returning machine. The second bearing seat is installed on the side of the second cutter disc fixing seat close to the first gear box. The second gear box is installed on the other side of the second cutter disc fixing seat. The lower part of the second gear box is connected to the second cutter disc in a transmission manner. The second clutch group is installed between the second bearing seat and the second gear box, and the second clutch group is connected to the second gear box in a transmission manner.

[0012] One end of the coupling is transmission-connected to the first gear box, and the other end of the coupling is transmission-connected to the second clutch assembly via the second bearing seat.

[0013] Further, the first gearbox includes a first gearbox body, a first spiral bevel gear, a second spiral bevel gear, a third spiral bevel gear, a first output shaft and a second output shaft.

[0014] The first gear case is installed on the first cutter disc fixing seat; the first spiral bevel gear is connected to the power input shaft; the first spiral bevel gear, the second spiral bevel gear and the third spiral bevel gear are all installed inside the first gear case, and the second spiral bevel gear and the third spiral bevel gear are meshed with the first spiral bevel gear; one end of the first output shaft is connected to the second spiral bevel gear, and the other end of the first output shaft is connected to the coupling; one end of the second output shaft is connected to the third spiral bevel gear, and the other end of the second output shaft is connected to the first cutter disc;

[0015] The second gearbox includes a second gearbox body, a first input shaft, a fourth spiral bevel gear, a fifth spiral bevel gear and a third output shaft.

[0016] The second gear housing is installed on the second cutter disc fixing seat; the first input shaft is transmission connected to one end of the coupling; the fourth spiral bevel gear and the fifth spiral bevel gear are both installed inside the second gear housing, and the fourth spiral bevel gear is fixed on the first input shaft, and the fifth spiral bevel gear is meshed with the fourth spiral bevel gear; one end of the third output shaft is transmission connected to the fourth spiral bevel gear, and the other end of the third output shaft is transmission connected to the second cutter disc.

[0017] Furthermore, the first clutch group includes a first overrunning clutch and a diaphragm clutch, the first overrunning clutch is located on the side close to the first gearbox, and the first overrunning clutch and the diaphragm clutch are connected as a whole by bolts; the second clutch group includes a second overrunning clutch and a dog clutch, the second overrunning clutch is located on the side close to the second gearbox, and the second overrunning clutch and the dog clutch are connected as a whole by bolts.

[0018] Furthermore, the first cutter disc and the second cutter disc rotate in the same direction.

[0019] Furthermore, the first cutter disc and the second cutter disc both rotate in a clockwise direction.

[0020] Furthermore, it also includes an elastic pad, which is arranged between the first cutter disc transmission part and the crushing and returning machine frame, and between the second cutter disc transmission part and the crushing and returning machine frame.

[0021] By adopting the above scheme, the beneficial effects of the present invention are:

[0022] 1) Different transmission parts are used to drive the cutter discs of different sizes, and they are connected as a whole to form an L-shape. Only one power input is used to provide driving power, which is suitable for the planting mode of one film and six rows of machine-picked cotton, making the transmission reliable and stable;

[0023] 2) The overrunning clutch is combined with the friction clutch. The overrunning clutch is used to protect the first cutter disc or the second cutter disc from rotating at high speed. If the power output shaft of the tractor suddenly slows down, the first cutter disc or the second cutter disc can be separated from the power output shaft of the tractor to prevent damage to the first gear box or the second gear box. The friction clutch (diaphragm clutch and tooth clutch) plays the role of overload protection for the cutter disc and transmission parts, thereby increasing the safety of the transmission.

[0024] 3) The elastic pad can reduce the vibration of the whole machine, make the transmission more stable, and reduce the complete deformation of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of a transmission system of a straw crushing and returning machine provided by the present invention;

[0027] Figure 2 The accompanying drawing is a schematic structural diagram of the transmission system provided by the present invention applied to a straw crushing and returning machine;

[0028] Figure 3 The accompanying drawing is a cross-sectional view of a first gearbox provided by the present invention;

[0029] Figure 4 The accompanying drawing is a cross-sectional view of the second gear box provided by the present invention. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] like Figure 1-4As shown, an embodiment of the present invention discloses a transmission system of a straw crushing and returning machine, comprising a first cutter disc 1, a second cutter disc 2, a crushing and returning machine frame 4 supported by a support wheel 3, a transmission mechanism and a tractor, wherein the first cutter disc 1 and the second cutter disc 2 having a diameter smaller than that of the first cutter disc 1 are installed in the inner space of the crushing and returning machine frame 4, the transmission mechanism is connected to the power output shaft of the tractor to drive the first cutter disc 1 and the second cutter disc 2 to rotate, the transmission mechanism comprises a first cutter disc transmission part 5, a second cutter disc transmission part 6 and a coupling 7, the first cutter disc transmission part 5 is connected to the first cutter disc 1, and the second cutter disc transmission part 6 is connected to the second cutter disc 2; the first cutter disc transmission part 5 and the second cutter disc transmission part 6 are both fixed on the upper part of the crushing and returning machine frame 4, and the first cutter disc transmission part 5 and the second cutter disc transmission part 6 are connected to form a whole through the coupling 7, and the whole is L-shaped. The present invention adopts different transmission parts to drive the cutter discs of different sizes, and connects them as a whole to form an L-shape. The driving power is provided by only one power input. It is suitable for the planting mode of one film and six rows of machine-picked cotton, so that the transmission is reliable and stable.

[0036] Specifically, the first cutter disc transmission unit 5 includes a first cutter disc fixing seat 51, a first bearing seat 52, a first gear box 53, a first clutch group 54 and a power input shaft 55.

[0037] The first cutter disc fixing seat 51 is fixed on the frame 4 of the crushing and returning machine; the first bearing seat 52 is installed on the side of the first cutter disc fixing seat 51 close to the tractor, and the first gear box 53 is installed on the other side of the first cutter disc fixing seat 51, and the lower part of the first gear box 53 is connected to the first cutter disc 1 by transmission; the first clutch group 54 is installed between the first bearing seat 52 and the first gear box 53, and the first clutch group 54 is connected to the first gear box 53 by transmission; the power input shaft 55 runs through the first clutch group 54, and one end of the power input shaft is installed on the first bearing seat 52 and is connected to the power output shaft by a coupling, and the other end is connected to the first gear box 53 by transmission;

[0038] The second cutter disc transmission part 6 includes a second cutter disc fixing seat 61, a second bearing seat 62, a second gear box 63 and a second clutch group 64. The second cutter disc fixing seat 61 is fixed on the frame 4 of the crushing and returning machine. The second bearing seat 62 is installed on the side of the second cutter disc fixing seat 61 close to the first gear box 53. The second gear box 63 is installed on the other side of the second cutter disc fixing seat 61. The lower part of the second gear box 63 is connected to the second cutter disc 2 in a transmission manner. The second clutch group 64 is installed between the second bearing seat 62 and the second gear box 63, and the second clutch group 64 is connected to the second gear box 63 in a transmission manner.

[0039] One end of the coupling 7 is transmission-connected to the first gear box 53 , and the other end of the coupling 7 is transmission-connected to the second clutch assembly 64 via the second bearing seat 62 .

[0040] Specifically, the first gearbox 53 includes a first gearbox body 531, a first spiral bevel gear 532, a second spiral bevel gear 533, a third spiral bevel gear 534, a first output shaft 535 and a second output shaft 536. The first gearbox body 531 is installed on the first cutter disc fixing seat 51; the first spiral bevel gear 532 is transmission-connected with the power input shaft 55; the first spiral bevel gear 532, the second spiral bevel gear 533 and the third spiral bevel gear 534 are all installed inside the first gearbox body 531, and the second spiral bevel gear 533 and the third spiral bevel gear 534 are all meshed with the first spiral bevel gear 532; one end of the first output shaft 535 is transmission-connected with the second spiral bevel gear 533, and the other end of the first output shaft 535 is transmission-connected with the coupling 7; one end of the second output shaft 536 is transmission-connected with the third spiral bevel gear 534, and the other end of the second output shaft 536 is transmission-connected with the first cutter disc 1;

[0041] The second gearbox 63 includes a second gearbox body 631, a first input shaft 632, a fourth spiral bevel gear 633, a fifth spiral bevel gear 634 and a third output shaft 635.

[0042] The second gear box body 631 is installed on the second cutter disc fixing seat 61; the first input shaft 632 is transmission connected with one end of the coupling 7; the fourth spiral bevel gear 633 and the fifth spiral bevel gear 634 are both installed inside the second gear box body 631, and the fourth spiral bevel gear 633 is fixed on the first input shaft 632, and the fifth spiral bevel gear 634 is meshed with the fourth spiral bevel gear 633; ​​one end of the third output shaft 635 is transmission connected with the fourth spiral bevel gear 633, and the other end of the third output shaft 635 is transmission connected with the second cutter disc 2.

[0043] Specifically, the first clutch group 54 includes a first overrunning clutch and a diaphragm clutch, the first overrunning clutch is located on the side close to the first gear box 53, and the first overrunning clutch and the diaphragm clutch are connected as a whole by bolts; the second clutch group 64 includes a second overrunning clutch and a dog clutch, the second overrunning clutch is located on the side close to the second gear box 63, and the second overrunning clutch and the dog clutch are connected as a whole by bolts.

[0044] Specifically, the first cutter disc 1 and the second cutter disc 2 rotate in the same direction.

[0045] Specifically, the first cutter disc 1 and the second cutter disc 2 both rotate in a clockwise direction.

[0046] Specifically, it also includes an elastic pad, which is arranged between the first cutter disc transmission part 5 and the crushing and returning machine frame 4, and between the second cutter disc transmission part 6 and the crushing and returning machine frame 4.

[0047] The transmission process of the present invention is as follows: first, the power output shaft of the tractor transmits power to the power input shaft 55. Driven by the power input shaft 55, the first spiral bevel gear 532 rotates, and the second spiral bevel gear 533 and the third spiral bevel gear 534 meshed therewith rotate, respectively driving the first output shaft 535 and the second output shaft 536 to rotate. The first output shaft 535 transmits power to the first input shaft 632 under the action of the coupling 7, and the second output shaft 536 drives the first cutter disc to rotate. The first input shaft 632 rotates, driving the fourth spiral bevel gear 633 to rotate, and the fifth spiral bevel gear 634 meshed therewith rotates, thereby driving the third output shaft 635 to rotate, and driving the second cutter disc to rotate. The whole process is continuous and stable, and different transmission parts are used for driving cutters of different sizes, and only one power input provides driving power, which is suitable for the planting mode of one film and six rows of machine-picked cotton, and the transmission is reliable and stable.

[0048] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transmission system of a straw crushing and returning machine, comprising a first cutter disc, a second cutter disc, a crushing and returning machine frame supported by a support wheel, a transmission mechanism and a tractor, wherein the first cutter disc and the second cutter disc having a diameter smaller than that of the first cutter disc are installed in the inner space of the crushing and returning machine frame, and the transmission mechanism is connected to the power output shaft of the tractor to drive the first cutter disc and the second cutter disc to rotate, characterized in that: The transmission mechanism includes a first cutter disc transmission part, a second cutter disc transmission part and a coupling. The first cutter disc transmission part is connected to the first cutter disc in driving connection, and the second cutter disc transmission part is connected to the second cutter disc in driving connection; the first cutter disc transmission part and the second cutter disc transmission part are both fixed to the upper part of the frame of the crushing and returning machine, and the first cutter disc transmission part and the second cutter disc transmission part are connected to form an integral body through the coupling, and the integral body is L-shaped; The first cutter disc transmission part includes a first cutter disc fixing seat, a first bearing seat, a first gear box, a first clutch group and a power input shaft. The first cutter disc fixing seat is fixed on the frame of the crushing and returning machine; the first bearing seat is installed on the side of the first cutter disc fixing seat close to the tractor, and the first gear box is installed on the other side of the first cutter disc fixing seat, and the lower part of the first gear box is connected to the first cutter disc by transmission; the first clutch group is installed between the first bearing seat and the first gear box, and the first clutch group is connected to the first gear box by transmission; the power input shaft passes through the first clutch group, and one end of the power input shaft is installed on the first bearing seat and is connected to the power output shaft by a coupling, and the other end is connected to the first gear box by transmission; The second cutter disc transmission part comprises a second cutter disc fixing seat, a second bearing seat, a second gear box and a second clutch group. The second cutter disc fixing seat is fixed on the frame of the crushing and returning machine. The second bearing seat is installed on the side of the second cutter disc fixing seat close to the first gear box. The second gear box is installed on the other side of the second cutter disc fixing seat. The lower part of the second gear box is connected to the second cutter disc in a transmission manner. The second clutch group is installed between the second bearing seat and the second gear box, and the second clutch group is connected to the second gear box in a transmission manner. One end of the coupling is transmission-connected to the first gear box, and the other end of the coupling is transmission-connected to the second clutch assembly through the second bearing seat; The first clutch group includes a first overrunning clutch and a diaphragm clutch, the first overrunning clutch is located near the first gear box, and the first overrunning clutch and the diaphragm clutch are connected as a whole by bolts; the second clutch group includes a second overrunning clutch and a dog clutch, the second overrunning clutch is located near the second gear box, and the second overrunning clutch and the dog clutch are connected as a whole by bolts; The first gearbox comprises a first gearbox body, a first spiral bevel gear, a second spiral bevel gear, a third spiral bevel gear, a first output shaft and a second output shaft, the first gearbox body is mounted on the first cutter disc fixing seat; the first spiral bevel gear is transmission-connected with the power input shaft; the first spiral bevel gear, the second spiral bevel gear and the third spiral bevel gear are all mounted inside the first gearbox body, and the second spiral bevel gear and the third spiral bevel gear are both meshed with the first spiral bevel gear; one end of the first output shaft is transmission-connected with the second spiral bevel gear, and the other end of the first output shaft is transmission-connected with the coupling; one end of the second output shaft is transmission-connected with the third spiral bevel gear, and the other end of the second output shaft is transmission-connected with the first cutter disc; The second gearbox includes a second gearbox body, a first input shaft, a fourth spiral bevel gear, a fifth spiral bevel gear and a third output shaft. The second gear housing is installed on the second cutter disc fixing seat; the first input shaft is transmission connected to one end of the coupling; the fourth spiral bevel gear and the fifth spiral bevel gear are both installed inside the second gear housing, and the fourth spiral bevel gear is fixed on the first input shaft, and the fifth spiral bevel gear is meshed with the fourth spiral bevel gear; one end of the third output shaft is transmission connected to the fourth spiral bevel gear, and the other end of the third output shaft is transmission connected to the second cutter disc.

2. The transmission system of the straw crushing and returning machine according to claim 1, characterized in that: The first cutter disc and the second cutter disc rotate in the same direction.

3. The transmission system of the straw crushing and returning machine according to claim 2 is characterized in that: The first cutter disc and the second cutter disc both rotate clockwise.

4. The transmission system of the straw crushing and returning machine according to claim 1, characterized in that: It also includes an elastic pad, which is arranged between the first cutter disc transmission part and the crushing and returning machine frame, and between the second cutter disc transmission part and the crushing and returning machine frame.

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