Transfer case of silage maize harvester

Abstract

The invention provides a silage maize harvester transfer case which comprises a transfer case and a clutch, the transfer case is provided with an input end and a plurality of output ends, the transfer case comprises a front machine body, a rear machine body, a power input mechanism, a first transmission mechanism, a second transmission mechanism, a first power output mechanism and a second power output mechanism, and the front machine body is fixedly connected with the rear machine body. The clutch is connected with the power input mechanism and installed outside the transfer case. The power input mechanism is provided with an input end, the first transmission mechanism is connected with the output end of the power input mechanism, the second transmission mechanism is connected with the output end of the first transmission mechanism, and the first power output mechanism and the second power output mechanism are both connected with the output end of the second transmission mechanism. The first power output mechanism and the second power output mechanism are each provided with a plurality of output ends. The working requirements of the silage maize harvester are met, and meanwhile the clutch is convenient to maintain and replace.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission, and in particular to a transfer case for a silage machine. Background Art

[0002] A silage machine is an agricultural machine that converts crop straw into livestock feed. The transfer case, as an important transmission component in the silage machine, is responsible for distributing the engine power to actuators such as walking, harvesting and throwing to meet the working needs of the entire machine.

[0003] At present, there is no publicly published patent for the transfer case of silage machine. The research and development of the transfer case of silage machine by domestic enterprises is still in the exploratory stage, and no mature technical solution has been formed. The existing transfer case of cotton pickers adopts a wet hydraulic clutch, and the clutch is placed inside the transfer case, which is not convenient for maintenance and replacement. Therefore, it is necessary to invent a transfer case that can not only meet the working needs of the silage machine, but also solve the problem of difficulty in maintenance and replacement of the clutch. Summary of the invention

[0004] According to the technical problem raised above, a transfer case for a silage machine is provided.

[0005] The technical means adopted by the present invention are as follows: A transfer case for a silage machine, comprising: a transfer case and a clutch, wherein the transfer case has an input end and multiple output ends, and comprises a front body, a rear body, a power input mechanism, a first transmission mechanism, a second transmission mechanism, a first power output mechanism, and a second power output mechanism, wherein the front body and the rear body are fixedly connected together to form a box structure having an accommodating cavity inside, wherein the power input mechanism, the first transmission mechanism, the second transmission mechanism, the first power output mechanism, and the second power output mechanism are all installed in the box structure, and the clutch is connected to the power input mechanism and is installed outside the transfer case; The power input mechanism has an input end, the first transmission mechanism is connected to the output end of the power input mechanism, the second transmission mechanism is connected to the output end of the first transmission mechanism, the first power output mechanism and the second power output mechanism are both connected to the output end of the second transmission mechanism, and the first power output mechanism and the second power output mechanism both have multiple output ends.

[0006] Furthermore, the power input mechanism includes an input shaft and a gear I, the input shaft and the gear I are connected via a spline, and both ends of the gear I are connected to the front body and the rear body via bearings I and bearings II, respectively.

[0007] Furthermore, the first transmission mechanism includes an intermediate shaft I and a gear II, the intermediate shaft I and the gear II are connected in a keyless interference connection, the two ends of the intermediate shaft I are respectively connected to the front body and the rear body through bearings III, and the gear II is meshedly connected with the gear I of the power input mechanism.

[0008] Furthermore, the second transmission mechanism includes a gear III and an intermediate shaft II, the intermediate shaft II is in keyless interference connection with the gear III, the two ends of the intermediate shaft II are respectively connected to the front body and the rear body through bearings IV, and the gear III is meshingly connected with the gear II of the first transmission mechanism.

[0009] Furthermore, the first power output mechanism includes a gear IV, an output shaft I and an output shaft II, the gear IV is meshedly connected with the gear III of the second transmission mechanism, the two ends of the gear IV are respectively connected to the front body and the rear body through bearings V, the output shaft I and the output shaft II are respectively installed in the inner hole of the gear IV through splines, the output shaft I and the output shaft II are coaxially arranged, and have output ends facing opposite directions and the same rotation direction.

[0010] Furthermore, the second power output mechanism includes a gear V, an output shaft III and an output shaft IV, the gear V is meshedly connected with the gear III of the second transmission mechanism, the two ends of the gear V are respectively connected to the front body and the rear body through bearings VI, the output shaft III and the output shaft IV are respectively installed in the inner hole of the gear V through splines, the output shaft III and the output shaft IV are coaxially arranged, and have output ends facing opposite directions and the same rotation direction.

[0011] Furthermore, the input end of the input shaft is connected to an elastic coupling via a spline, a tension sleeve is provided on the elastic coupling, and the elastic coupling is fastened to the input shaft via the tension sleeve.

[0012] Furthermore, a skeleton oil seal I and a skeleton oil seal II are respectively installed on the gear I near the elastic coupling and the clutch, and the sealing lips of the skeleton oil seal I and the skeleton oil seal II are in contact with the outer circle of the gear I to form a seal.

[0013] Furthermore, the clutch adopts a dry hydraulic clutch, the rotor of the clutch is connected to the end face of gear I by bolts, the housing of the clutch is connected to the rear body by bolts, and the clutch has a rotary joint for connecting to the hydraulic system. The pressure oil provided by the hydraulic system enters the clutch through the rotary joint to control the opening and closing of the clutch.

[0014] Furthermore, the intermediate shaft II is connected to a spline sleeve by bolts, the spline sleeve is connected to a gear pump, and the gear pump is connected to the rear body by bolts, wherein the inner hole of the spline sleeve has an internal spline, and the input shaft of the gear pump has an external spline, which is matched with the internal spline.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention realizes the functional requirements of the transfer case, realizes single-axis input and multi-axis output, and these output shafts respectively drive the actuators such as walking, harvesting and throwing. The present invention is significantly different from the existing transfer cases of cotton pickers in structure.

[0016] 2. The present invention realizes the motion control of the ejection mechanism without stopping the machine by using a clutch. The rotor of the clutch is connected to the gear I inside the transfer case by bolts, and the gear I also provides a radial support for the rotor of the clutch. The clutch adopts a dry hydraulic clutch, and the clutch is installed outside the transfer case for easy maintenance and replacement.

[0017] 3. The present invention installs an elastic coupling at the input end of the transfer case. The elastic coupling is connected to the input shaft of the transfer case through a spline and is fastened to the input shaft through a tension sleeve.

[0018] 4. The present invention adopts a gear pump, which rotates together with the intermediate shaft II of the transfer case through a spline sleeve to extract the lubricating oil inside the transfer case so as to cool the lubricating oil.

[0019] 5. The present invention installs a skeleton oil seal on both sides of the gear I to prevent the leakage of lubricating oil.

[0020] 6. In the present invention, keyless interference connection is adopted between gear II and intermediate shaft I, and between gear III and intermediate shaft II, which simplifies the structure of parts.

[0021] 7. The output shafts I, II, III and IV of the present invention are all connected by splines, which is convenient for replacement.

[0022] Based on the above reasons, the present invention can be widely promoted in the fields of agricultural machinery and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1It is the outer shape drawing of the transfer case of the present invention.

[0025] Figure 2 The cross-sectional view of the transfer case of the present invention Figure 1 .

[0026] Figure 3 The cross-sectional view of the transfer case of the present invention Figure 2 .

[0027] In the figure: 1. transfer case; 2. clutch; 3. front body; 4. elastic coupling; 5. bearing Ⅰ; 6. skeleton oil seal Ⅰ; 7. input shaft; 8. tension sleeve; 9. intermediate shaft Ⅰ; 10. gear Ⅱ; 11. gear Ⅲ; 12. intermediate shaft Ⅱ; 13. gear Ⅳ; 14. bearing Ⅴ; 15. output shaft Ⅰ; 16. output shaft Ⅱ; 17. bearing Ⅳ; 18. spline sleeve; 19. gear pump; 20. bearing Ⅲ; 21. skeleton oil seal Ⅱ; 22. rotary joint; 23. housing; 24. rotor; 25. rear body; 26. bearing Ⅱ; 27. gear Ⅰ; 28. gear Ⅴ; 29. ​​bearing Ⅵ; 30. output shaft Ⅲ; 31. output shaft Ⅳ. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0035] Example 1 The invention provides a silage machine transfer case, which is a mechanical transmission device for a silage machine, meets the working requirements of the silage machine and facilitates the maintenance and replacement of a clutch.

[0036] A transfer case for a silage machine of the present invention comprises: a transfer case 1 and a clutch 2, wherein the transfer case 1 has an input end and multiple output ends, and comprises a front body 3, a rear body 25, a power input mechanism, a first transmission mechanism, a second transmission mechanism, a first power output mechanism and a second power output mechanism, wherein the front body 3 and the rear body 25 are fixedly connected together to form a box structure having an accommodating cavity inside, wherein the power input mechanism, the first transmission mechanism, the second transmission mechanism, the first power output mechanism and the second power output mechanism are all installed in the box structure, and the clutch 2 is connected to the power input mechanism and is installed outside the transfer case 1; The power input mechanism has an input end, the first transmission mechanism is connected to the output end of the power input mechanism, the second transmission mechanism is connected to the output end of the first transmission mechanism, the first power output mechanism and the second power output mechanism are both connected to the output end of the second transmission mechanism, and the first power output mechanism and the second power output mechanism both have multiple output ends.

[0037] The transfer case of a silage machine of the present invention is responsible for distributing the power of an engine to actuators such as walking, harvesting and throwing to meet the working requirements of the whole machine.

[0038] According to the number of actuators, one or more second transmission mechanisms may be provided, and more output ends may be provided through the first power output mechanisms and the second power output mechanisms of the plurality of second transmission mechanisms.

[0039] Example 2 like Figure 1-3 As shown, the present invention provides a forage machine transfer case, including a transfer case 1 and a clutch 2. The transfer case 1 mainly includes a front body 3, a rear body 25, an input shaft 7, an intermediate shaft I9, an intermediate shaft II12, a gear I27, a gear II10, a gear III11, a gear IV13, a gear V28, a bearing I5, a bearing II26, a bearing III20, a bearing IV17, a bearing V14, a bearing VI29, an output shaft I15, an output shaft II16, an output shaft III30, an output shaft IV31, an elastic coupling 4, a gear pump 19, a spline sleeve 18, a skeleton oil seal I6, a skeleton oil seal II21 and other parts.

[0040] In this embodiment, the front body 3 and the rear body 25 are assembled together by bolts and positioning pins, and the corresponding bearing holes on the front body 3 and the rear body 25 need to meet the coaxiality requirements.

[0041] In this embodiment, an external spline is processed on the input shaft 7, and an internal spline is processed on the gear I27. The input shaft 7 and the gear I27 are connected together by the spline and rotate synchronously. The gear I27 is connected to the front body 3 and the rear body 25 through the bearing I5 and the bearing II26 respectively. The bearing I5 and the bearing II26 are respectively installed in the bearing holes (in the bearing seat) of the front body 3 and the rear body 25.

[0042] In this embodiment, there is a meshing relationship between gear I27 and gear II10, and gear I27 transmits power to gear II10. Gear II10 and intermediate shaft I9 are connected by keyless interference fit, and intermediate shaft I9 is ​​connected to the front body 3 and the rear body 25 through two bearings III20, and the two bearings III20 are respectively installed in the bearing holes (in the bearing seat) of the front body 3 and the rear body 25.

[0043] In this embodiment, there is a meshing relationship between gear II10 and gear III11, and gear II10 transmits power to gear III11. Gear III11 and intermediate shaft II12 are connected by keyless interference fit, and intermediate shaft II12 is connected to the front body 3 and the rear body 25 respectively through two bearings IV17, and the two bearings IV17 are respectively installed in the bearing holes (in the bearing seat) of the front body 3 and the rear body 25.

[0044] In this embodiment, there is a meshing relationship between gear III11 and gear IV13, and gear III11 transmits power to gear IV13. Gear IV13 is connected to the front body 3 and the rear body 25 through two bearings V14, and the two bearings V14 are respectively installed in the bearing holes (in the bearing seats) of the front body 3 and the rear body 25.

[0045] In this embodiment, there is a meshing relationship between the gear III11 and the gear V28, and the gear III11 transmits power to the gear V28. The gear V28 is connected to the front body 3 and the rear body 25 through two bearings VI29, and the two bearings VI29 are respectively installed in the bearing holes (in the bearing seats) of the front body 3 and the rear body 25.

[0046] In this embodiment, the output shaft I15 is installed in the inner hole of the gear IV13, and the two are connected by a spline to achieve synchronous rotation.

[0047] In this embodiment, the output shaft II 16 is also installed in the inner hole of the gear IV 13, and the two are connected by a spline to achieve synchronous rotation.

[0048] Specifically, the output shaft I15 and the output shaft II16 output power. The output shaft I15 and the output shaft II16 are coaxially arranged, and have output ends facing opposite directions and rotating in the same direction. The outer circles of the output shaft I15 and the output shaft II16 are processed with external splines, and the inner hole of the gear IV13 is processed with internal splines, and the internal splines are matched and connected with the external splines. The output shaft I15 and the output shaft II16 are connected to the gear IV13 through the splines.

[0049] In this embodiment, the output shaft III 30 is installed in the inner hole of the gear V 28, and the two are connected by a spline to achieve synchronous rotation.

[0050] In this embodiment, the output shaft IV31 is also installed in the inner hole of the gear V28, and the two are connected by a spline to achieve synchronous rotation.

[0051] Specifically, the output shaft III30 and the output shaft IV31 output power. The output shaft III30 and the output shaft IV31 are coaxially arranged, and have output ends facing opposite directions and rotating in the same direction. The outer circles of the output shaft III30 and the output shaft IV31 are processed with external splines, and the inner hole of the gear V28 is processed with internal splines, and the internal splines are matched and connected with the external splines. The output shaft III30 and the output shaft IV31 are connected with the gear V28 through the splines.

[0052] In this embodiment, the elastic coupling 4 is installed at the input end of the input shaft 7, and the elastic coupling 4 and the input shaft 7 are fixed together by the tension sleeve 8 to achieve synchronous rotation.

[0053] Specifically, the inner hole of the elastic coupling 4 has an inner spline, which is connected to the outer spline of the input shaft 7. At the same time, the elastic coupling 4 has a tensioning device (tensioning sleeve 8), through which the elastic coupling 4 is fixed to the input shaft 7 of the transfer case.

[0054] In this embodiment, the clutch 2 adopts an external dry hydraulic clutch. The rotor 24 of the clutch 2 is connected to the end face of the gear I 27 by bolts, and is positioned and rotated synchronously with the gear I 27 by the stopper. The housing 23 of the clutch 2 is connected to the rear body 25 by bolts. The clutch 2 has a rotary joint 22 for connecting to the hydraulic system. The pressure oil provided by the hydraulic system enters the clutch 2 through the rotary joint 22, thereby controlling the opening and closing of the clutch 2. The clutch 2 and the elastic coupling 4 are respectively located on the front and rear sides of the transfer case.

[0055] In this embodiment, a skeleton oil seal I6 is installed on the gear I27 near the elastic coupling 4, and the sealing lip of the skeleton oil seal I6 contacts the outer circle of the gear I27 to form a seal.

[0056] In this embodiment, a skeleton oil seal II 21 is installed on the gear I 27 near the clutch 2, and the sealing lip of the skeleton oil seal II 21 contacts the outer circle of the gear I 27 to form a seal.

[0057] The skeleton oil seal Ⅰ6 and skeleton oil seal Ⅱ21 are used to prevent the lubricating oil inside the box from leaking out.

[0058] In this embodiment, the spline sleeve 18 is connected to one end of the intermediate shaft II 12 by bolts. The inner hole of the spline sleeve 18 has an internal spline, which is connected to the external spline of the input shaft of the gear pump 19, thereby driving the gear pump 19 to rotate. At the same time, the housing of the gear pump 19 is connected to the rear body 25 by bolts.

[0059] 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 transfer case for a silage machine, characterized in that: include: A transfer case (1) and a clutch (2), wherein the transfer case (1) has an input end and a plurality of output ends, and comprises a front body (3), a rear body (25), a power input mechanism, a first transmission mechanism, a second transmission mechanism, a first power output mechanism and a second power output mechanism, wherein the front body (3) and the rear body (25) are fixedly connected together to form a box structure having an internal accommodating cavity, wherein the power input mechanism, the first transmission mechanism, the second transmission mechanism, the first power output mechanism and the second power output mechanism are all installed in the box structure, and the clutch (2) is connected to the power input mechanism and is installed outside the transfer case (1); The power input mechanism has an input end, the first transmission mechanism is connected to the output end of the power input mechanism, the second transmission mechanism is connected to the output end of the first transmission mechanism, the first power output mechanism and the second power output mechanism are both connected to the output end of the second transmission mechanism, and the first power output mechanism and the second power output mechanism each have a plurality of output ends; The power input mechanism comprises a gear I (27); the clutch (2) adopts a dry hydraulic clutch; the rotor (24) of the clutch (2) is connected to the end face of the gear I (27) by bolts; the housing (23) of the clutch (2) is connected to the rear body (25) by bolts; the clutch (2) has a rotary joint (22) for connecting to a hydraulic system; the pressure oil provided by the hydraulic system enters the clutch (2) through the rotary joint (22) to control the opening and closing of the clutch (2); The second transmission mechanism comprises an intermediate shaft II (12), the intermediate shaft II (12) is connected to a gear pump (19), and the gear pump (19) is connected to the rear body (25); The first power output mechanism comprises a gear IV (13), an output shaft I (15) and an output shaft II (16); the gear IV (13) is meshingly connected with the gear III (11) of the second transmission mechanism; the two ends of the gear IV (13) are respectively connected to the front body (3) and the rear body (25) via bearings V (14); the output shaft I (15) and the output shaft II (16) are respectively installed in the inner hole of the gear IV (13) via splines; the output shaft I (15) and the output shaft II (16) are coaxially arranged and have output ends facing opposite directions and rotating in the same direction.

2. The silage machine transfer case according to claim 1, characterized in that: The power input mechanism further comprises an input shaft (7), the input shaft (7) being connected to a gear I (27) via a spline, and the two ends of the gear I (27) being connected to the front body (3) and the rear body (25) via bearings I (5) and II (26), respectively.

3. The silage machine transfer case according to claim 1, characterized in that: The first transmission mechanism comprises an intermediate shaft I (9) and a gear II (10), wherein the intermediate shaft I (9) and the gear II (10) are connected in a keyless interference fit manner, wherein both ends of the intermediate shaft I (9) are connected to the front body (3) and the rear body (25) respectively via bearings III (20), and the gear II (10) is meshingly connected to the gear I (27) of the power input mechanism.

4. The silage machine transfer case according to claim 1, characterized in that: The second transmission mechanism further comprises a gear III (11), the intermediate shaft II (12) and the gear III (11) are connected in a keyless interference fit, the two ends of the intermediate shaft II (12) are respectively connected to the front body (3) and the rear body (25) via bearings IV (17), and the gear III (11) is meshingly connected to the gear II (10) of the first transmission mechanism.

5. The silage machine transfer case according to claim 1, characterized in that: The second power output mechanism comprises a gear V (28), an output shaft III (30) and an output shaft IV (31); the gear V (28) is meshedly connected with the gear III (11) of the second transmission mechanism; two ends of the gear V (28) are respectively connected to the front body (3) and the rear body (25) via bearings VI (29); the output shaft III (30) and the output shaft IV (31) are respectively installed in the inner hole of the gear V (28) via splines; the output shaft III (30) and the output shaft IV (31) are coaxially arranged and have output ends facing opposite directions and rotating in the same direction.

6. The silage machine transfer case according to claim 2, characterized in that: The input end of the input shaft (7) is connected to an elastic coupling (4) via a spline, the elastic coupling (4) is provided with a tension sleeve (8), and the elastic coupling (4) is fastened to the input shaft (7) via the tension sleeve (8).

7. The silage machine transfer case according to claim 6, characterized in that: A skeleton oil seal I (6) and a skeleton oil seal II (21) are respectively installed on the gear I (27) at locations close to the elastic coupling (4) and the clutch (2). The sealing lips of the skeleton oil seal I (6) and the skeleton oil seal II (21) are in contact with the outer circle of the gear I (27) to form a seal.

8. The silage machine transfer case according to claim 4, characterized in that: The intermediate shaft II (12) is connected to a spline sleeve (18) via bolts, the spline sleeve (18) is connected to a gear pump (19), and the gear pump (19) is connected to the rear body (25) via bolts, wherein the inner hole of the spline sleeve (18) has an internal spline, and the input shaft of the gear pump (19) has an external spline, and the external spline is matched with the internal spline for connection.

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