Clutch lubricating system and agricultural operation machine

Abstract

The clutch lubricating system comprises a first shaft sleeve, a clutch gear, a clutch hub gear and a friction plate, the clutch gear comprises a friction tooth part, a meshing tooth part and a middle part, a first oil hole is formed in the middle part in a penetrating mode, a second oil hole is formed in the friction tooth part in a penetrating mode, and a third oil hole is formed in the first shaft sleeve in a penetrating mode. The clutch hub gear comprises a meshing part and a connecting part connected with the meshing part, and the fourth oil hole penetrates through the connecting part. According to the clutch lubricating system and the agricultural operation machine, the clutch system can be better lubricated, friction of the clutch system is reduced, and meanwhile the clutch system can be better cooled.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a clutch lubrication system and an agricultural working machine. Background Art

[0002] The lubrication system plays a crucial role in the gearboxes of existing agricultural machines. It not only reduces friction and wear on moving parts, but also keeps them cool. However, existing clutch lubrication systems suffer from suboptimal lubrication and cooling performance, leading to significant component wear and reduced service life. Optimizing the entire lubrication system to achieve both lubrication and temperature reduction is a challenge that requires continuous research and improvement.

[0003] Therefore, it is necessary to provide a clutch lubrication system and an agricultural working machine to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a clutch lubrication system and an agricultural working machine, which can better achieve lubrication and cooling of the clutch system through reasonable scheme design, thereby improving the lubrication effect and cooling effect.

[0005] According to one aspect of the present invention, a clutch lubrication system is provided, including a transmission shaft, a first sleeve mounted on the transmission shaft, a clutch gear mounted on the first sleeve, a clutch hub gear mounted on the clutch gear, and a friction plate disposed in the clutch hub gear and mounted on the clutch gear.

[0006] The clutch gear includes a friction tooth portion, an engaging tooth portion, and an intermediate portion connected between the friction tooth portion and the engaging tooth portion. A first oil hole is provided through the intermediate portion for allowing lubricating oil to enter the clutch gear. A second oil hole is provided through the friction tooth portion. The second oil holes include at least two of them and are arranged side by side along the axial direction of the clutch gear to allow lubricating oil to flow to the friction plate. A third oil hole is provided through the first shaft sleeve. The third oil holes include at least two of them and are arranged in a circular array around the central axis of the first shaft sleeve to lubricate the mating position between the first shaft sleeve and the transmission shaft.

[0007] The clutch hub gear includes an engaging portion and a connecting portion connected to the engaging portion. The fourth oil hole is penetrated by the connecting portion. The fourth oil holes include at least two. The fourth oil holes are arranged side by side along the axial direction of the clutch hub gear, and the fourth oil holes are arranged in a circular array with the center of the clutch hub gear as the center. The fourth oil holes are used to allow lubricating oil to flow out of the clutch hub gear.

[0008] This application helps to lubricate the clutch system well, reduce the friction and wear of parts, and also better cool the clutch system.

[0009] Preferably, the connecting portion includes at least two grooves along its inner wall, arranged in a circular array centered on the central axis of the clutch hub gear. The fourth oil hole extends through the grooves. This facilitates better penetration of lubricating oil into and out of the clutch hub gear, thereby enhancing lubrication. Preferably, the clutch lubrication system also includes a first oil groove located on the end surface of the friction plate for lubricating the friction plate. This facilitates the flow of lubricating oil, thereby achieving better lubrication.

[0010] Preferably, the first oil groove is a grid-like groove structure that is staggered horizontally and vertically, which helps the lubricating oil flow and thus achieves a better lubrication effect.

[0011] Preferably, the connecting portion further comprises a protruding portion disposed on an outer wall of the connecting portion and connected to the engaging portion, and the protruding portion comprises a protruding end surface relatively away from the engaging portion.

[0012] Preferably, the clutch lubrication system further comprises a gasket sleeved on the connection portion and at least partially in contact with the raised end surface, a second oil groove is provided on the surface of the gasket at least partially in contact with the raised end surface, and the second oil groove is a grid-shaped groove structure.

[0013] Preferably, the clutch lubrication system further comprises a second sleeve sleeved on the connecting portion, the inner surface of the second sleeve being provided with a third oil groove having a grid-like groove structure, which helps to better achieve the flow of lubricating oil.

[0014] Preferably, the second oil holes include four, which are arranged side by side along the axial direction of the clutch gear, and the second oil holes include four groups, which are arranged in a circular array along the central axis of the clutch gear, to facilitate the flow of lubricating oil and thus achieve a better lubrication effect.

[0015] Preferably, a transmission comprises a housing and the clutch lubrication system of the above-mentioned solution, wherein the housing includes an oil inlet and an oil inspection port. Lubricating oil enters the transmission housing through the oil inlet and approximately soaks into the transmission oil inspection port, and the clutch system is at least partially soaked in the lubricating oil. This helps ensure that the lubricating oil enters the clutch system, thereby better lubricating the clutch system.

[0016] Preferably, an agricultural working machine includes a cab, a crawler track, and the clutch lubrication system of the above solution.

[0017] The utility model provides a clutch lubrication system and an agricultural working machine, which realize lubrication of the clutch system and improve the fluidity of the lubricating oil in the clutch system through the design of multiple key components such as the clutch gear, clutch hub gear, first shaft sleeve, friction plate, etc., as well as the design of oil ports and oil channels, thereby helping to reduce the friction of the clutch system components and also helping to better cool the clutch system, thereby increasing the service life of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1 : The cross-sectional view of the gearbox;

[0020] Figure 2 for Figure 1 Cross-sectional view of the clutch lubrication system in the M position;

[0021] Figure 3 It is a partial exploded view of the clutch;

[0022] Figure 4 Schematic diagram of clutch gear;

[0023] Figure 5 is a schematic diagram of the first sleeve;

[0024] Figure 6 Schematic diagram of friction plate;

[0025] Figure 7 is a schematic diagram of the clutch hub gear;

[0026] Figure 8 Schematic diagram of the gasket;

[0027] Figure 9 is a schematic diagram of the second sleeve;

[0028] Figure 10 Schematic diagram of the gearbox;

[0029] Figure 11 A schematic diagram of an agricultural machine.

[0030] Description of Figure Numbers:

[0031] 101. Clutch gear; 102. First sleeve; 103. Friction plate; 104. Clutch hub gear; 105. Gasket; 106. Second sleeve; 107. Drive shaft; 1011. Friction tooth portion; 1012. Meshing tooth portion; 1013. Intermediate portion; 1041. Meshing portion; 1042. Connecting portion; 1042a. Groove; 1043. Raised portion; 1043a. Raised end face; 201. Housing; 2011. Oil inlet; 2012. Oil inspection port; A1. First oil hole; A2. Second oil hole; B1. Third oil hole; C1. First oil tank; D1. Fourth oil hole; E1. Second oil tank; F1. Third oil tank; 100. Gearbox; 200. Agricultural machine. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0034] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0035] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0038] See also Figure 1 As shown, a gearbox 100 includes a clutch, and the clutch includes a clutch lubrication system.

[0039] See also Figures 2 to 7As shown, this embodiment provides a clutch lubrication system, including a transmission shaft 107, a first sleeve 102 sleeved on the transmission shaft 107, a clutch gear 101 sleeved on the first sleeve 102, a clutch hub gear 104 sleeved on the clutch gear 101, and a friction plate 103 disposed in the clutch hub gear 104 and sleeved on the clutch gear.

[0040] The clutch gear 101 includes a friction tooth portion 1011, an engaging tooth portion 1012, and an intermediate portion 1013 connected between the friction tooth portion and the engaging tooth portion. The first oil hole A1 is provided in the intermediate portion 1013 to allow lubricating oil to enter the clutch gear 101. The second oil hole A2 is provided in the friction tooth portion 1011. The second oil holes A2 include at least two, and the second oil holes A2 are arranged side by side along the axial direction of the clutch gear 101 to allow lubricating oil to flow to the friction plate 103. The third oil hole B1 is provided in the first shaft sleeve 102. The third oil holes B1 include at least two, and the third oil holes B1 are arranged in a circular array around the central axis of the first shaft sleeve 102 to lubricate the mating position between the first shaft sleeve 102 and the transmission shaft 107.

[0041] Furthermore, the first oil hole A1 is formed in the middle portion 1013 to allow lubricating oil to enter the clutch gear 101 . The lubricating oil entering the clutch gear 101 flows to the second oil hole A2 on one side and flows to the third oil hole B1 on the other side.

[0042] The second oil holes A2 are formed in the friction tooth portion 1011 . The second oil holes A2 include at least two arranged side by side along the axial direction of the clutch gear 101 . When the clutch gear 101 rotates, the lubricating oil flows to the friction plate 103 under the action of centrifugal force.

[0043] The third oil hole B1 is used to lubricate the mating position between the first sleeve 102 and the transmission shaft 107. When the first sleeve 102 rotates with the clutch gear 101, the relative movement between the first sleeve 102 and the transmission shaft will increase wear and generate heat. The lubricating oil enters the position between the transmission shaft 107 and the clutch gear 101 through the third oil hole B1, which helps to lubricate and cool this position.

[0044] The clutch hub gear 104 includes a meshing portion 1041 and a connecting portion 1042 connected to the meshing portion 1041. The fourth oil hole D1 is penetrated by the connecting portion 1042. The fourth oil hole D1 includes at least two. The fourth oil holes D1 are arranged side by side along the axial direction of the clutch hub gear 104, and the fourth oil holes are arranged in a circular array with the center of the clutch hub gear as the center. The fourth oil holes are used to allow lubricating oil to flow out of the clutch hub gear.

[0045] This application helps to lubricate the clutch system well, reduce the friction and wear of parts, and also better cool the clutch system.

[0046] The connecting portion 1042 includes grooves 1042a disposed along its inner wall. There are at least two grooves 1042a arranged in a circular array centered about the central axis of the clutch hub gear 104. The fourth oil hole D1 extends through the grooves 1042a. This facilitates better penetration of lubricating oil into and out of the clutch hub gear 104, thereby enhancing lubrication.

[0047] The first oil groove C1 is disposed on the end surface of the friction plate 103 to lubricate the friction plate 103 and facilitate the flow of lubricating oil, thereby achieving a better lubrication effect.

[0048] The first oil groove C1 is a grid-like groove structure that is staggered horizontally and vertically, which helps the lubricating oil flow and thus achieves a better lubrication effect.

[0049] The connecting portion 1042 further includes a protruding portion 1043 disposed on an outer wall of the connecting portion 1042 and connected to the engaging portion 1041 . The protruding portion 1043 includes a protruding end surface 1043 a relatively away from the engaging portion 1041 .

[0050] The second oil holes A2 include four, which are arranged side by side along the axial direction of the clutch gear 101. The second oil holes A2 include four groups, which are arranged in a circular array along the central axis of the clutch gear 101. This helps the lubricating oil flow and achieves a better lubrication effect.

[0051] See also Figure 8 As shown, the clutch lubrication system also includes a gasket 105 which is sleeved on the connecting portion 1042 and at least partially abuts against the raised end surface 1043a. The surface of the gasket 105 which at least partially abuts against the raised end surface 1043a is provided with a second oil groove E1. The second oil groove E1 is a grid-shaped groove structure. The lubricating oil enters the second oil groove E1 through the fourth oil hole D1 to achieve lubrication of this position. The lubrication effect can be improved by the grid-shaped groove.

[0052] See also Figure 9 As shown, the clutch lubrication system also includes a second sleeve 106 sleeved on the connecting portion. The inner surface of the second sleeve 106 is provided with a third oil groove F1, which is a grid-like groove structure. This facilitates better flow of lubricating oil. The second sleeve 106 contacts the housing 201. The provision of the second sleeve 106 prevents direct contact and friction between the clutch hub gear 104 and the housing 201. Lubricating oil enters the mating position between the second sleeve 106 and the clutch hub gear 104 through the fourth oil hole D1. When the clutch hub gear 104 rotates, friction and high temperature are generated. Therefore, the above solution can lubricate and cool the mating position between the second sleeve 106 and the clutch hub gear 104, facilitating the flow of lubricating oil and achieving a better lubrication effect.

[0053] See also Figure 1 and Figure 10 As shown, this embodiment provides a gearbox 100. The gearbox 100 includes a housing 201, an oil inlet 2011, and an oil inspection port 2012. Lubricating oil enters the gearbox through the oil inlet 2011 and approximately reaches the oil inspection port 2012 of the gearbox 100. The clutch system is at least partially immersed in the lubricating oil. This helps ensure that the lubricating oil enters the clutch system, providing better lubrication within the clutch system.

[0054] See also Figure 11 As shown, this embodiment provides an agricultural working machine, including a cab 30, a crawler 40, and the clutch lubrication system of the above solution.

[0055] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments described above without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations of the present invention that fall within the scope of the appended claims and their equivalents.

Claims

1. A clutch lubrication system, characterized in that: include: A transmission shaft, a first shaft sleeve sleeved on the transmission shaft, a clutch gear sleeved on the first shaft sleeve, a clutch hub gear sleeved on the clutch gear, and a friction plate disposed in the clutch hub gear and sleeved on the clutch gear; The clutch gear includes a friction tooth portion, an engagement tooth portion, and an intermediate portion connected between the friction tooth portion and the engagement tooth portion; a first oil hole, the first oil hole being formed through the middle portion and configured to allow lubricating oil to enter the clutch gear; a second oil hole, the second oil hole being formed through the friction tooth portion, the second oil hole including at least two, and the second oil holes being arranged side by side along the axial direction of the clutch gear, for allowing lubricating oil to flow to the friction plate; a third oil hole, the third oil hole being provided through the first sleeve, the third oil hole including at least two, the third oil holes being arranged in a circular array around the central axis of the first sleeve, for lubricating the mating position between the first sleeve and the transmission shaft; The clutch hub gear includes an engaging portion and a connecting portion connected to the engaging portion; The fourth oil hole is penetrated by the connecting portion, and the fourth oil holes include at least two. The fourth oil holes are arranged side by side along the axial direction of the clutch hub gear, and the fourth oil holes are arranged in a circular array with the center of the clutch hub gear as the center. The fourth oil holes are used to allow lubricating oil to flow out of the clutch hub gear.

2. A clutch lubrication system according to claim 1, characterized in that: The connecting portion includes a groove arranged along the inner wall of the connecting portion, the groove includes at least two grooves, and the grooves are arranged in a circular array with the central axis of the clutch hub gear as the center, and the fourth oil hole is penetrated by the groove.

3. A clutch lubrication system according to claim 2, characterized in that It also includes a first oil groove, which is arranged on the end surface of the friction plate to lubricate the friction plate.

4. A clutch lubrication system according to claim 3, characterized in that: The first oil groove is a grid-like groove structure that is staggered horizontally and vertically.

5. A clutch lubrication system according to claim 4, characterized in that: The connecting portion further comprises a protruding portion connected to the outer wall of the connecting portion and the engaging portion, wherein the protruding portion comprises a protruding end surface relatively away from the engaging portion.

6. A clutch lubrication system according to claim 5, characterized in that It also includes a gasket that is sleeved on the connecting portion and at least partially abuts the raised end surface. A second oil groove is provided on the surface of the gasket that at least partially abuts the raised end surface. The second oil groove is a grid-shaped groove structure.

7. A clutch lubrication system according to claim 6, characterized in that: It also includes a second sleeve sleeved on the connecting portion, the inner surface of the second sleeve is provided with a third oil groove, and the third oil groove is a grid-shaped groove structure.

8. A clutch lubrication system according to claim 7, characterized in that: The second oil holes include four, which are arranged side by side along the axial direction of the clutch gear. The second oil holes include four groups, which are arranged in a circular array along the central axis of the clutch gear.

9. An agricultural working machine comprising the clutch lubrication system according to claim 1 or claim 8.

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