Gear, gear assembly and gearbox

Abstract

The utility model discloses a gear, a gear assembly and a gearbox. The gear comprises a hub, a radial plate and gear teeth arranged on the circumferential side of the radial plate, an oil groove is detachably and fixedly formed in at least one side face of the radial plate, an oil storage cavity with an opening is defined by the oil groove and the corresponding side face of the radial plate, and the opening extends in the circumferential direction of the radial plate and is arranged in the direction, facing the hub, of the radial plate; the opening extends in the radial direction of the radial plate and is arranged in the circumferential direction of the radial plate. When the gear works, oil liquid is stored in the oil storage cavity, vibration energy is absorbed through the oil liquid, vibration of the gear is reduced, when the gear vibrates, the oil liquid absorbs the vibration energy through the damping performance of the oil liquid, and vibration of the gear is reduced. And two different oil groove arrangement modes are adopted, so that the oil grooves can absorb vibration in different directions on the gear.

Description

Technical Field

[0001] The utility model relates to the field of gearboxes, in particular to a gear, a gear assembly and a gearbox. Background Art

[0002] Gears are commonly used parts in the mechanical field and belong to transmission mechanical devices. Gears and gear products are important basic parts of mechanical equipment. The main transmission parts of most mechanical complete sets of equipment are gear transmission. For the gearbox on the vehicle, it mainly works through gears and gear trains. The gearbox often vibrates when working. The vibration in the gearbox is usually generated during the meshing process of the gears. The cause of the vibration of the gear is related to the meshing stiffness of the gear, installation error, gear load, hub vibration and other factors. For example, when the gear rotates, the gear teeth vibrate during the meshing process, the gear hub vibrates, and the bearing vibrates.

[0003] Common gears include hubs, spokes and gear teeth. The vibration generated by the gears during transmission will be transmitted along the spokes of the gears. However, common gear spokes do not have a shock-absorbing structure. A few gears use scissor gears for shock absorption, but this structure is complex and costly. Therefore, the gears in the gearboxes in the prior art have poor shock absorption performance. Utility Model Content

[0004] The utility model aims to solve the problem of poor shock absorption performance of gears in a gearbox in the prior art.

[0005] In order to solve the above technical problems, an embodiment of the utility model discloses a gear, including a hub, a spoke plate and gear teeth arranged on the circumferential side of the spoke plate, at least one side of the spoke plate is detachably fixed with an oil groove, the oil groove and the corresponding side of the spoke plate are surrounded to form an oil storage cavity with an opening, the opening extends along the circumference of the spoke plate and is arranged in the radial direction of the spoke plate toward the hub, or the opening extends along the radial direction of the spoke plate and is arranged in the circumferential direction of the spoke plate.

[0006] By adopting the above technical scheme, an oil groove is provided on the spoke plate, and the oil groove and the side wall of the spoke plate form an oil storage cavity. When the gear is working, oil is stored in the oil storage cavity, that is, oil is provided on the spoke plate of the gear, and the vibration energy is absorbed by the oil to reduce the vibration of the gear. The viscous oil in the oil storage cavity contacts the spoke plate of the gear. At this time, the oil in the oil storage cavity acts as a damping fluid. When the gear vibrates, the oil absorbs the vibration energy through its own damping performance, thereby reducing the vibration of the gear and reducing the transmission of vibration energy out of the gearbox, thereby improving the shock absorbing performance of the gear and further improving the shock absorbing performance of the gearbox.

[0007] Furthermore, in the present scheme, the oil groove can be set according to different needs in two ways: extending along the circumferential direction of the spoke plate or extending along the radial direction of the spoke plate. The use of these two different oil groove setting methods is beneficial for the oil groove to absorb vibrations in different directions on the gear. The oil groove extending along the circumferential direction of the spoke plate can better absorb the vibrations transmitted laterally on the gear, and the oil groove extending along the radial direction of the spoke plate can better absorb the vibrations transmitted longitudinally on the gear, thereby improving the vibration absorption performance of the oil groove.

[0008] The embodiment of the utility model further discloses a gear, wherein the oil groove is arranged to extend along the circumference of the spoke plate and to form an annular oil groove on the spoke plate, and the opening is also arranged to extend along the circumference of the spoke plate and to form an annular opening on the spoke plate;

[0009] Alternatively, the oil groove is extended along the radial direction of the spoke plate, and a spoke-shaped oil groove is formed on the spoke plate, and the opening is a spoke-shaped opening.

[0010] With the above technical solution, the oil groove is extended along the circumference of the spoke plate to form an annular oil groove, which can store oil in the oil groove, thereby absorbing the vibration energy of the gear through the damping performance of the oil, and the annular opening formed can also facilitate the oil to enter the oil groove. After storing oil, the spoke-shaped oil groove can absorb the vibration energy transmitted along the longitudinal direction of the gear.

[0011] The embodiment of the utility model also discloses a gear, wherein the cross-sectional shape of the oil groove is "L"-shaped, one end of the "L"-shaped oil groove is detachably fixedly connected to the corresponding side surface of the spoke plate, and an opening is formed between the other end and the corresponding side surface of the spoke plate.

[0012] By adopting the above technical solution, the cross-sectional shape of the oil groove is "L"-shaped, and one end of the "L"-shaped oil groove is detachably fixedly connected to the corresponding side of the spoke plate. The oil groove can be set on the gear or removed as needed, which is convenient for installation and disassembly, and an oil storage space is formed between the "L"-shaped oil groove and the spoke plate to store the oil.

[0013] The embodiment of the utility model further discloses a gear, wherein the oil groove comprises a first groove portion and a second groove portion which are perpendicular to and connected to each other, the first groove portion and the corresponding side surface of the spoke plate are arranged vertically, and the second groove portion and the corresponding side surface of the spoke plate are arranged oppositely; wherein,

[0014] The second groove portion and the spoke plate form an opening, and a clamping piece is further provided on the first groove portion, through which the oil groove is detachably fixed on the corresponding side surface of the spoke plate.

[0015] With the above technical solution, the first groove portion of the oil groove and the corresponding side of the spoke plate are arranged vertically, the second groove portion and the corresponding side of the spoke plate are arranged oppositely, and an oil storage cavity is formed between the second groove portion and the corresponding side of the spoke plate, and the oil can be stored in the oil storage cavity. A clamping piece is also arranged on the first groove portion, and the oil groove is detachably fixed to the corresponding side of the spoke plate through the clamping piece, and the clamping piece has a simple structure, and it is also simple and convenient to clamp the oil groove.

[0016] The embodiment of the utility model further discloses a gear, wherein a plurality of oil grooves are provided, and the plurality of oil grooves are arranged at intervals along the radial direction or the circumferential direction of the spoke plate, and a gap is provided at the connection position between each oil groove and the corresponding side surface of the spoke plate.

[0017] By adopting the above technical solution, multiple oil grooves are arranged on the gear to improve the shock absorption effect of the gear, and a gap is provided at the connection position between each oil groove and the corresponding side surface of the spoke plate to facilitate the penetration of oil and flow into the next oil groove.

[0018] The embodiment of the utility model further discloses a gear, wherein oil grooves are arranged on two sides of the spoke plate, and the oil grooves on the two sides of the spoke plate are symmetrically distributed or staggeredly distributed.

[0019] By adopting the above technical solution, oil grooves are arranged on both sides of the spoke plate, which can balance the two sides of the gear to prevent offset and improve the shock absorption effect of the gear. The oil grooves on the two sides of the spoke plate can be symmetrically distributed or staggered according to actual needs, and the shock absorption effect of the staggered distribution is better than that of the symmetrical distribution.

[0020] The embodiment of the utility model further discloses a gear, wherein the material of the oil groove is rubber material or plastic material.

[0021] With the above technical solution, the oil tank is made of rubber or plastic, which is light in weight and does not affect the normal rotation of the gears. In addition, the rubber or plastic oil tank itself can absorb vibrations on the gears.

[0022] An embodiment of the utility model also discloses a gear assembly, comprising any one of the gears described above, and also comprising a gear shaft, the gear being arranged on the gear shaft, an oil channel extending along the length direction of the gear shaft being arranged at the axial position of the gear shaft, and a plurality of through holes being opened at the position where the gear is arranged on the gear shaft, the through holes being respectively connected to the oil channel and the oil tank, so that the oil in the oil channel flows into the oil tank through the through holes.

[0023] By adopting the above technical solution, an oil channel extending along the length direction of the gear shaft is set at the axial center position of the gear shaft of the gear assembly. The oil channel contains oil, which can absorb the vibration of the gear shaft and reduce the vibration energy transmitted from the gear shaft to the gear.

[0024] Furthermore, a through hole connected to the oil channel and the oil tank is opened at the position where the gear is set on the gear shaft, so that the oil can flow into the oil tank through the through hole, so that the oil is stored in the oil tank, and then the vibration energy on the gear is absorbed by the oil.

[0025] Further preferably, the through hole is arranged on a side of the gear shaft that is attached to the gear, and the through hole penetrates the gear shaft along a radial direction of the gear shaft.

[0026] The embodiment of the utility model further discloses a gearbox, comprising a case and the above-mentioned gear assembly.

[0027] By adopting the above technical solution, the gear assembly with the oil channel and the oil groove is used in the gearbox, which can absorb the vibration energy on the gear assembly, reduce the transmission of vibration energy, improve the performance of the gearbox, and reduce the transmission of vibration energy out of the gearbox.

[0028] The beneficial effects of the utility model are:

[0029] The utility model provides a gear, a gear assembly and a gearbox. A plurality of oil grooves are detachably fixedly arranged on the side of the spoke plate of the gear, and the oil grooves and the corresponding side of the spoke plate are surrounded to form an oil storage cavity with an opening, and oil is stored in the oil storage cavity, and the vibration energy is absorbed by the damping performance of the oil, thereby reducing the vibration of the gear. Furthermore, the oil groove on the gear can be an opening extending along the circumference of the spoke plate and arranged in the radial direction of the spoke plate toward the wheel hub, or an opening extending along the radial direction of the spoke plate and arranged in the circumferential direction of the spoke plate. The oil groove extending along the circumference of the spoke plate can better absorb the vibration transmitted laterally on the gear, and the oil groove extending along the radial direction of the spoke plate can better absorb the vibration transmitted longitudinally on the gear, thereby improving the vibration absorption performance of the oil groove.

[0030] Furthermore, the gear assembly disclosed in the utility model not only includes the above-mentioned gear, but also provides an oil channel at the axis of the gear shaft, through which the oil in the oil channel absorbs the vibration energy on the gear shaft, and a through hole is provided on the gear shaft to facilitate the oil to flow into the oil tank. The gearbox disclosed in the utility model includes the above-mentioned gear assembly, which can absorb the vibration energy on the gear assembly, reduce the transmission of vibration energy, reduce the transmission of vibration energy out of the gearbox, and improve the performance of the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of the gear and gear assembly provided in the embodiment of the utility model;

[0032] Figure 2 A schematic diagram of the partial structure of a gear and an oil tank provided in an embodiment of the utility model.

[0033] Description of reference numerals:

[0034] 100. Gear;

[0035] 110, wheel hub; 120, gear teeth;

[0036] 130, spoke plate;

[0037] 131, side; 132, oil tank;

[0038] 1321, oil storage cavity; 1322, opening; 1323, first groove portion; 1324, second groove portion;

[0039] 200, gear assembly;

[0040] 210, gear shaft;

[0041] 211. through hole; 212. oil channel. DETAILED DESCRIPTION

[0042] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0043] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0044] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply 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 utility model.

[0045] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0046] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0047] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0048] Example 1

[0049] The embodiment of this embodiment discloses a gear 100, see Figure 1 The gear 100 includes a hub 110, a spoke plate 130, and gear teeth 120 disposed on the circumference of the spoke plate 130. At least one side surface 131 of the spoke plate 130 is detachably fixed with an oil groove 132. The oil groove 132 and the corresponding side surface 131 of the spoke plate 130 surround and form an oil storage cavity 1321 having an opening 1322. The opening 1322 of the oil groove 132 is shown in FIG. Figure 2 , and in Figure 1 In one of the embodiments shown, the opening 1322 extends along the circumference of the spoke plate 130 and is arranged in the radial direction of the spoke plate 130 toward the hub 110, or in another embodiment, the opening 1322 extends along the radial direction of the spoke plate 130 and is arranged in the circumferential direction of the spoke plate 130 (not shown in the figure).

[0050] Specifically, in the present embodiment, the oil groove 132 can be detachably connected by means of snap-on, plug-in, or other detachable connection methods commonly used by those skilled in the art, and the cross-sectional shape of the oil groove 132 can be, for example, an "L" shape, a "V" shape, a "Z" shape, or the like, so that the oil groove 132 can be detachably disposed on the spoke plate 130 and form an oil storage cavity 1321 with the spoke plate 130.

[0051] More specifically, in this embodiment, when the oil groove 132 is extended along the circumferential direction of the spoke plate 130, Figure 1As shown, a partially arc-shaped oil groove 132 may be formed on the side 131 of the spoke 130, or a closed annular oil groove 132 may be formed on the side 131 of the spoke 130. The number of the oil grooves 132 may be 1, 2, 3, 4 or other numbers. In an implementation method disclosed in this embodiment, two annular oil grooves 132 are provided on each side of the spoke 130, and those skilled in the art may also set it according to actual needs, which is not limited to this embodiment.

[0052] More specifically, in another embodiment, when the oil groove 132 is extended along the radial direction of the spoke 130, a section of the oil groove 132 may be formed in the radial direction of the spoke 130, or it may be extended in the length direction of the diameter of the spoke 130. The number of the oil groove 132 of this structure may be 1, 2, 3, 4 or other numbers. Those skilled in the art may set it according to actual needs, and this embodiment does not specifically limit this. Those skilled in the art should understand that Figure 1 Only one implementation of the annular oil groove 132 is shown, and the spoke-shaped or radial oil groove is another implementation that is not shown.

[0053] In summary, an oil groove 132 is provided on the spoke plate 130, and the oil groove 132 and the side wall of the spoke plate 130 form an oil storage cavity 1321. When the gear 100 is working, oil is stored in the oil storage cavity 1321, that is, oil is stored on the spoke plate 130 of the gear 100. The vibration energy generated during gear transmission is absorbed by the oil to reduce the vibration of the gear 100. The viscous oil in the oil storage cavity 1321 contacts the spoke plate 130 of the gear 100. At this time, the oil in the oil storage cavity 1321 acts as a damping fluid. When the gear 100 vibrates, the oil absorbs the vibration energy through its own damping performance, thereby reducing the vibration of the gear box 100 and reducing the transmission of vibration energy out of the gearbox, thereby improving the shock absorbing performance of the gear 100 and further improving the shock absorbing performance of the gearbox.

[0054] Furthermore, the two different ways of setting the oil grooves 132, extending along the circumferential direction of the spoke plate 130 or extending along the radial direction of the spoke plate 130, are advantageous for the oil grooves 132 to absorb vibrations in different directions on the gear 100. The oil grooves 132 extending along the circumferential direction of the spoke plate 130 can better absorb the vibrations transmitted laterally on the gear 100, and the oil grooves 132 extending along the radial direction of the spoke plate 130 can better absorb the vibrations transmitted longitudinally on the gear 100, thereby improving the vibration absorption performance of the oil grooves 132.

[0055] The embodiment of the present invention further discloses a gear 100, wherein the oil groove 132 is arranged to extend along the circumference of the spoke plate 130 and to form an annular oil groove 132 on the spoke plate 130, and the opening 1322 is also arranged to extend along the circumference of the spoke plate 130 and to form an annular opening 1322 on the spoke plate 130;

[0056] Or in another implementation, the oil groove 132 is extended along the radial direction of the spoke plate 130 , and a spoke-shaped oil groove 132 is formed on the spoke plate 130 , and the opening 1322 is a spoke-shaped opening 1322 .

[0057] Specifically, in this embodiment, the oil groove 132 is arranged to extend along the circumference of the spoke 130 and form an annular oil groove 132, which can store more oil in the annular oil groove 132, and then absorb the vibration energy of the gear 100 through the damping performance of the oil. After the oil is stored in the annular oil groove 132, because a complete annular oil groove 132 is formed on the spoke 130, the spoke 130 and the oil groove 132 are relatively balanced as a whole, so that the gear 100 is evenly stressed, which will not affect the rotation of the gear 100, and will not cause a slight deviation of the gear 100. The formed annular opening 1322 can also facilitate the oil to enter the oil groove 132. After storing the oil, the annular oil groove 132 can absorb the vibration energy transmitted along the lateral direction of the gear 100; after storing the oil, the spoke-shaped oil groove 132 can absorb the vibration energy transmitted along the longitudinal direction of the gear 100.

[0058] The implementation method of this embodiment also discloses a gear 100, wherein the cross-sectional shape of the oil groove 132 is “L”-shaped, one end of the “L”-shaped oil groove 132 is detachably fixedly connected to the corresponding side surface 131 of the spoke plate 130 , and an opening 1322 is formed between the other end and the corresponding side surface 131 of the spoke plate 130 .

[0059] Specifically, in this embodiment, the cross-sectional shape of the oil groove 132 is "L"-shaped, and one end of the "L"-shaped oil groove 132 is detachably fixedly connected to the corresponding side surface 131 of the spoke plate 130. The oil groove 132 can be set on the gear 100 or removed as needed to facilitate installation and disassembly, and an oil storage space is formed between the "L"-shaped oil groove 132 and the spoke plate 130 to store oil.

[0060] The embodiment of the present invention also discloses a gear 100, see Figure 2The oil groove 132 includes a first groove portion 1323 and a second groove portion 1324 which are perpendicular to and connected to each other. The first groove portion 1323 and the corresponding side surface 131 of the spoke 130 are vertically arranged, and the second groove portion 1324 and the corresponding side surface 131 of the spoke 130 are oppositely arranged; wherein the second groove portion 1324 and the spoke 130 form an opening 1322, and a clamping piece (not shown in the figure) is further arranged on the first groove portion 1323, and the oil groove 132 is detachably fixed on the corresponding side surface 131 of the spoke 130 through the clamping piece.

[0061] The first groove portion 1323 of the oil groove 132 is vertically arranged with respect to the corresponding side surface 131 of the spoke 130, and the second groove portion 1324 is oppositely arranged with respect to the corresponding side surface 131 of the spoke 130. An oil storage cavity 1321 is formed between the second groove portion 1324 and the corresponding side surface 131 of the spoke 130, and oil can be stored in the oil storage cavity 1321. Specifically, in the oil groove 132, the length of the first groove portion 1323 can be greater than the length of the second groove portion 1324, or the length of the second groove portion 1324 can be greater than the length of the first groove portion 1323. Preferably, in the present embodiment, the length of the second groove portion 1324 is greater than the length of the first groove portion 1323. After the oil is stored in the oil groove 132 of this structure, the contact area between the oil and the spoke 130 is larger, thereby improving the shock absorbing effect of the oil on the gear 100.

[0062] More specifically, in this embodiment, the clamping piece provided on the first groove portion 1323 can be a common barb-shaped clamping piece, or can be provided as a clamping piece of other shapes. Those skilled in the art can design it according to actual conditions and specific requirements, and this embodiment does not specifically limit this. The oil groove 132 is detachably fixed to the corresponding side surface 131 of the spoke 130 by the clamping piece, and the clamping piece has a simple structure, and it is also simple and convenient to clamp the oil groove 132.

[0063] More specifically, the first groove 1323 may be directly connected to the spoke 130, or a flat plate-shaped component may be extended outward from the back of the first groove 1323, and the oil groove 132 may be screwed to the spoke 130 by bolts or screws. As another setting method, those skilled in the art may also set the oil groove 132 on the spoke 130 by welding, integral molding, etc.

[0064] The implementation of this embodiment further discloses a gear 100 , wherein a plurality of oil grooves 132 are provided, and the plurality of oil grooves 132 are spaced apart along the radial or circumferential direction of the spoke plate 130 , and a gap is provided at the connection position between each oil groove 132 and the corresponding side surface 131 of the spoke plate 130 .

[0065] Specifically, in this embodiment, the oil grooves 132 can be provided with 2, 3, 4 or other numbers. The multiple oil grooves 132 can be evenly spaced or randomly spaced. Arranging multiple oil grooves 132 on the gear 100 can improve the shock absorbing effect of the gear 100.

[0066] More specifically, in this embodiment, there is a gap or pore at the connection position between each oil groove 132 and the corresponding side surface 131 of the radial plate 130, so that the oil can penetrate and flow into the next oil groove 132, for example Figure 2 There are fine holes between the oil groove 132 and the side surface 131 near the oil channel 212 for oil to pass through.

[0067] The implementation manner of this embodiment further discloses a gear 100 , wherein both side surfaces 131 of the spoke plate 130 are provided with oil grooves 132 , and the oil grooves 132 on the two side surfaces 131 of the spoke plate 130 are symmetrically distributed or staggeredly distributed.

[0068] Specifically, oil grooves 132 are provided on both side surfaces 131 of the spoke plate 130, which can balance the two sides of the gear 100 to prevent offset and improve the shock absorption effect of the gear 100. The oil grooves 132 on the two side surfaces 131 of the spoke plate 130 can be symmetrically distributed or staggered according to actual needs. The shock absorption effect of the staggered distribution is better than that of the symmetrical distribution. Preferably, in this embodiment, multiple oil grooves 132 on the two side surfaces 131 of the spoke plate 130 are staggered.

[0069] The implementation of this embodiment further discloses a gear 100 , wherein the oil groove 132 is made of rubber or plastic.

[0070] Specifically, in this embodiment, the oil groove 132 can also be made of polyethylene, polypropylene, synthetic rubber, polytetrafluoroethylene, etc., which are common materials for technicians in this field. The oil groove 132 made of these materials itself is light in weight and does not affect the normal rotation of the gear 100. The oil groove 132 made of rubber or plastic material itself can also absorb the vibration on the gear 100.

[0071] More specifically, in this embodiment, while satisfying the rigidity and strength of the gear 100 , a hollow oil storage space may be provided inside the spoke plate 130 of the gear 100 , and oil is stored in the oil storage space inside the spoke plate 130 , and the oil in the oil storage space reduces vibration of the gear 100 .

[0072] More specifically, in this embodiment, the oil grooves 132 provided on the same side of the spoke 130 may be provided with both the oil grooves 132 extending in the circumferential direction of the spoke 130 and the oil grooves 132 provided in the radial direction of the spoke 130. The specific arrangement is that a plurality of radially extending oil grooves 132 are provided between two adjacent annular oil grooves 132, so that the two adjacent annular oil grooves 132 are connected. With this structural design, there are both the oil grooves 132 extending in the circumferential direction of the spoke 130 and the oil grooves 132 extending in the radial direction of the spoke 130. Those skilled in the art may also provide oil grooves 132 with other structures, and this embodiment does not limit this exclusively.

[0073] Example 2

[0074] The embodiment of this embodiment discloses a gear assembly 200, see Figure 1 , including any one of the gears 100 in Embodiment 1, and also including a gear shaft 210, the gear 100 is arranged on the gear shaft 210, the axis position of the gear shaft 210 is provided with an oil channel 212 extending along the length direction of the gear shaft 210, and the position where the gear 100 is arranged on the gear shaft 210 is provided with a plurality of through holes 211, the through holes 211 are respectively connected with the oil channel 212 and the oil groove 132, so that the oil in the oil channel 212 flows into the oil groove 132 through the through holes 211. And see Figure 1 When the oil flows in the oil channel 212 of the gear 100, Figure 1 As shown by the long straight arrow in the oil channel 212, the oil enters the oil groove 132 through the through hole 211. Figure 1 As shown by the two short straight arrows in the figure.

[0075] Further preferably, see Figure 1 In this embodiment, the through hole 211 is arranged on the side of the gear shaft 210 that is attached to the gear 100, and the through hole 211 penetrates the gear shaft 210 along the radial direction of the gear shaft 210. With this structural arrangement, the through hole 211 is arranged in contact with one side of the gear 100. When the gear 100 rotates, after the oil flows out of the through hole 211, it will flow to the oil groove 132 along the surface of the spoke plate 130 of the gear 100 under the action of centrifugal force, which can prevent the oil from being thrown out of the gear 100 and causing oil splashing, and the oil can also absorb the vibration energy of the gear 100. The through hole 211 penetrating the gear shaft 210 along the radial direction of the gear shaft 210 can ensure that the oil can flow out from both sides of the gear shaft 210, and the oil distribution is more uniform, for example, in Figure 1 In the state shown, it is ensured that the gear 100 is provided with oil on both the upper and lower sides of the gear shaft 210. And those skilled in the art should understand that each side of the oil groove 132 is provided with a through hole 211, for example, Figure 1In one implementation shown in FIG. 1 , the gear 100 is provided with oil grooves 132 on both sides thereof, and thus the gear shaft 210 on both sides of the axial direction of the gear 100 is provided with through holes 211. When the gear 100 is provided with an oil groove 132 on one side thereof (such as Figure 2 ), only the side where the oil groove 132 is provided with the through hole 211.

[0076] Specifically, in this embodiment, the oil channel 212 extending along the length direction of the gear shaft 210 is provided at the axis center position of the gear shaft 210 of the gear assembly 200. The oil channel 212 contains oil, and the oil can absorb the vibration of the gear shaft 210 and reduce the vibration energy transmitted from the gear shaft 210 to the gear 100. The flow direction of the oil from the oil channel 212 to the oil groove 132 through the through hole 211 is as follows: Figure 1 The short arrow indicates the direction.

[0077] More specifically, in this embodiment, the through holes 211 on the gear shaft 210 can be provided with 2, 3, 4, 5 or other numbers to facilitate the oil to flow into the oil groove 132 through the through holes 211, so that the oil is stored in the oil groove 132, and then the vibration energy on the gear 100 is absorbed by the oil.

[0078] Example 3

[0079] The implementation of this embodiment discloses a gearbox, including a housing, and also including any one of the gears 100 in Example 1 and the gear assembly 200 in Example 2.

[0080] Specifically, in this embodiment, the gear assembly 200 having the oil channel 212 and the oil groove 132 is used in the gearbox, which can absorb the vibration energy on the gear assembly 200, reduce the transmission of vibration energy, improve the performance of the gearbox, and reduce the transmission of vibration energy out of the gearbox.

[0081] In summary, the utility model provides a gear 100, a gear assembly 200 and a gearbox. A plurality of oil grooves 132 are detachably fixedly provided on the side 131 of the spoke 130 of the gear 100, and the oil grooves 132 and the corresponding side 131 of the spoke 130 surround to form an oil storage cavity 1321 with an opening 1322, and oil is stored in the oil storage cavity 1321, and the vibration energy is absorbed by the damping performance of the oil, thereby reducing the vibration of the gear 100. Furthermore, the oil groove 132 on the gear 100 can be an opening 1322 extending along the circumference of the spoke plate 130 and arranged in the radial direction of the spoke plate 130 toward the hub 110, or the opening 1322 extends along the radial direction of the spoke plate 130 and is arranged in the circumferential direction of the spoke plate 130. The oil groove 132 extending along the circumference of the spoke plate 130 can better absorb the vibration transmitted laterally on the gear 100, and the oil groove 132 extending along the radial direction of the spoke plate 130 can better absorb the vibration transmitted longitudinally on the gear 100, thereby improving the vibration absorption performance of the oil groove 132.

[0082] Furthermore, the gear assembly 200 disclosed in the present invention not only includes the above-mentioned gear 100, but also provides an oil channel 212 at the axis of the gear shaft 210, through which the oil in the oil channel 212 absorbs the vibration energy on the gear shaft 210, and a through hole 211 is provided on the gear shaft 210 to facilitate the oil to flow into the oil tank 132. The gearbox disclosed in the present invention, including the above-mentioned gear assembly 200, can absorb the vibration energy on the gear assembly 200, reduce the transmission of vibration energy, reduce the transmission of vibration energy out of the gearbox, and improve the performance of the gearbox.

[0083] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A gear, comprising a hub, a spoke plate and gear teeth arranged on the circumference of the spoke plate, characterized in that: An oil groove is detachably fixedly provided on at least one side of the spoke plate, and the oil groove and the corresponding side of the spoke plate surround and form an oil storage cavity with an opening, and the opening extends along the circumference of the spoke plate and is arranged in the radial direction of the spoke plate toward the wheel hub, or the opening extends along the radial direction of the spoke plate and is arranged in the circumferential direction of the spoke plate.

2. The gear according to claim 1, characterized in that The oil groove is extended along the circumference of the radial plate and forms an annular oil groove on the radial plate, and the opening is also extended along the circumference of the radial plate and forms an annular opening on the radial plate; Alternatively, the oil groove is extended along the radial direction of the spoke plate and forms a spoke-shaped oil groove on the spoke plate, and the opening is a spoke-shaped opening.

3. The gear according to claim 2, characterized in that The cross-sectional shape of the oil groove is "L"-shaped, one end of the "L"-shaped oil groove is detachably fixedly connected to the corresponding side surface of the spoke plate, and the opening is formed between the other end and the corresponding side surface of the spoke plate.

4. The gear according to claim 3, characterized in that The oil groove comprises a first groove portion and a second groove portion which are perpendicular to and connected to each other, the first groove portion and the corresponding side surface of the spoke plate are arranged vertically, and the second groove portion and the corresponding side surface of the spoke plate are arranged oppositely; wherein, The second groove portion and the spoke plate form the opening, and a clamping piece is further provided on the first groove portion, and the oil groove is detachably fixed on the corresponding side surface of the spoke plate through the clamping piece.

5. The gear according to any one of claims 2 to 4, characterized in that: There are a plurality of oil grooves, which are spaced apart along the radial direction or circumferential direction of the spoke plate, and a gap is provided at a connection position between each oil groove and a corresponding side surface of the spoke plate.

6. The gear according to any one of claims 1 to 4, characterized in that: The oil grooves are arranged on both sides of the spoke plate, and the oil grooves on the two sides of the spoke plate are symmetrically distributed or staggeredly distributed.

7. The gear according to any one of claims 1 to 4, characterized in that: The oil tank is made of rubber or plastic.

8. A gear assembly, characterized in that: The invention comprises a gear as claimed in any one of claims 1 to 7, and further comprises a gear shaft, wherein the gear is arranged on the gear shaft, an oil channel extending along the length direction of the gear shaft is arranged at the axis center of the gear shaft, and A plurality of through holes are provided on the gear shaft at a position where the gear is arranged. The through holes are respectively connected to the oil channel and the oil groove, so that the oil in the oil channel flows into the oil groove through the through holes.

9. The gear assembly according to claim 8, wherein: The through hole is arranged on a side of the gear shaft that is attached to the gear, and the through hole penetrates the gear shaft along a radial direction of the gear shaft.

10. A gearbox, comprising a housing, characterized in that: Also included is the gear assembly as claimed in claim 8 or 9.

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