Lubrication device

Abstract

The present application relates to the technical field of gearbox bearing lubrication, and in particular to a lubrication device, the lubrication device comprising: an oil collecting assembly and an oil throwing component, the oil collecting assembly is formed with an oil guide channel, the oil throwing component is connected to the transmission shaft of the gearbox, the oil throwing component rotates with the transmission shaft and can transport the oil to the oil guide channel after absorbing the oil, and guide the oil to the bearing of the gearbox through the oil guide channel and is used to lubricate the bearing. Due to the addition of the oil throwing component, compared with the previous method of only relying on the rotation of the gear to carry oil, the oil collection amount is larger, the oil collection capacity is stronger, the lubricating oil amount is more abundant, and the lubrication effect is better, especially under low-speed conditions, the reliability of the working lubrication of the gearbox bearing can be greatly improved. In addition, compared with the forced oil supply lubrication to improve the lubrication effect, no additional lubricating oil pump is required, the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of gearbox bearing lubrication, and in particular to a lubrication device. Background Art

[0002] At present, low-speed heavy-load gearboxes use oil bath splash lubrication, which relies on the rotation of low-speed gears immersed in lubricating oil to splash the lubricating oil to the lubrication parts. However, the amount of oil splashed by the low-speed gears during operation and the parts reached are difficult to ensure sufficient lubrication of bearings at all levels. In addition, in order to improve the lubrication effect, forced oil supply lubrication is used, which requires additional components such as oil pumps. The system structure is complex and the manufacturing cost is also high. Summary of the invention

[0003] The purpose of the present application is to provide a lubrication device, which to a certain extent solves the technical problem in the prior art that a low-speed and heavy-load gearbox lacks an effective lubrication device.

[0004] The present application provides a lubrication device, which includes: an oil collecting assembly and an oil throwing component, the oil collecting assembly is formed with an oil guide channel, the oil throwing component is connected to the transmission shaft of the gear box, the oil throwing component rotates with the transmission shaft and can transport the oil to the oil guide channel after absorbing the oil, and the oil is guided to the bearings of the gear box through the oil guide channel and is used to lubricate the bearings.

[0005] In the above technical solution, further, the oil-slinging member is formed with at least one oil-carrying groove group, and the oil-carrying groove group includes a plurality of ratchet-shaped oil-carrying grooves arranged at intervals along the circumference of the oil-slinging member.

[0006] In any of the above technical solutions, further, the oil-slinging component is formed with two oil-carrying groove groups, which are respectively a first oil-carrying groove group and a second oil-carrying groove group;

[0007] The first oil-carrying groove group includes a plurality of first oil-carrying grooves, and the plurality of first oil-carrying grooves are arranged clockwise along the circumference of the oil-slinging member; the second oil-carrying groove group includes a plurality of second oil-carrying grooves, and the plurality of second oil-carrying grooves are arranged counterclockwise along the circumference of the oil-slinging member;

[0008] The first oil-carrying grooves and the second oil-carrying grooves are alternately arranged along a circumferential direction of the oil-slinging member.

[0009] In any of the above technical solutions, further, the oil guide channel extends from the top of the oil collecting assembly to the side wall of the oil collecting assembly.

[0010] In any of the above technical solutions, further, the oil collecting assembly includes an oil guide member, a first oil collecting member and a second oil collecting member; wherein the first oil collecting member is covered outside the transmission structure inside the gear box, and the transmission structure includes the transmission shaft;

[0011] The oil guide member is disposed at the top of the first oil collecting member and extends from the center of the top of the first oil collecting member to the side wall of the first oil collecting member, and the oil guide member is formed with an oil guide slope that faces the side wall of the first oil collecting member and slopes downward;

[0012] An oil inlet window is formed on the side wall of the first oil collecting member, a first oil guide groove is formed on the inner side wall of the first oil collecting member, one end of the first oil guide groove extends to the oil guide member, and the other end opposite to the first oil guide groove extends to the oil inlet window;

[0013] The second oil collecting member is arranged outside the first oil collecting member, and the second oil collecting member is a box body. The interior of the second oil collecting member is connected with the interior of the first oil collecting member through the oil inlet window; the second oil collecting member is formed with an oil outlet hole connected to the bearing of the gear box.

[0014] In any of the above technical solutions, further, the number of second oil collecting members arranged on each side of the first oil collecting member is multiple, and the multiple second oil collecting members arranged on each side of the first oil collecting member are arranged in sequence and spaced apart along the length direction of the first oil collecting member, and any adjacent two second oil collecting members are connected by a second oil guide groove opened on the inner wall of the first oil collecting member.

[0015] In any of the above technical solutions, further, the second oil guiding groove is parallel to the length direction of the first oil collecting member; and / or

[0016] The distance between the oil-slinging member and the inner wall of the first oil-collecting member is 8 mm-15 mm.

[0017] In any of the above technical solutions, further, an edge of the oil inlet window close to the first oil guiding groove and an edge away from the first oil guiding groove are both provided with an oil guiding slope extending toward the second oil guiding member and inclined downward.

[0018] In any of the above technical solutions, further, a V-shaped oil guide groove body is provided at one end of the oil guide member close to the first oil collecting member, and is connected to the first oil guide groove of the first oil collecting member through the oil guide groove body.

[0019] In any of the above technical solutions, further, the cross-section of the first oil guiding groove along the height direction is V-shaped.

[0020] Compared with the prior art, the beneficial effects of this application are:

[0021] The lubrication device provided by the present application includes an oil-slinging component and an oil-collecting component, and its working principle is as follows: as the transmission shaft of the gearbox rotates, in addition to the gears carrying oil and throwing the oil to the oil-collecting component, the oil-slinging component can also pick up the oil and actively throw it to the top of the oil-collecting component, and guide it to the bearing through the oil guide channel. Compared with the previous method of only relying on the rotation of the gears to carry oil, the oil collection amount is larger, the oil collection capacity is stronger, the lubricating oil amount is more abundant, and the lubrication effect is better, especially under low-speed conditions, which can greatly improve the reliability of the working lubrication of the gearbox bearing. In addition, compared with the forced oil supply lubrication to improve the lubrication effect, no additional lubricating oil pump is required, the structure is simple, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of a lubrication device provided in an embodiment of the present application;

[0024] Figure 2 Another structural schematic diagram of the lubrication device provided in the embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a gearbox and an oil-slinging component provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of the oil-slinging component provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a partial structure of a first guide groove provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of the partial structure of the second guide groove provided in an embodiment of the present application.

[0029] Reference numerals:

[0030] 1-oil collecting assembly, 11-oil guiding member, 111-oil guiding slope, 12-oil guiding groove body, 13-first oil collecting member, 131-first oil guiding groove, 132-oil inlet window, 133-second oil guiding groove, 134-oil guiding slope, 14-second oil collecting member, 141-oil outlet hole, 2-oil throwing member, 21-first oil-carrying groove, 22-second oil-carrying groove, 3-transmission shaft, 4-input shaft, 5-output shaft. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0032] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0033] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Refer to the following Figures 1 to 6 A lubrication device according to some embodiments of the present application is described.

[0037] See also Figures 1 to 3As shown, an embodiment of the present application provides a lubrication device, which can be particularly used for a gearbox formed with a transmission shaft 3. The lubrication device includes: an oil collecting assembly 1 and an oil throwing member 2. The oil collecting assembly 1 forms an oil guide channel. The oil throwing member 2 is connected to the transmission shaft 3 of the gearbox (specifically, the gearbox involved in this embodiment belongs to a three-stage transmission, including an input shaft 4, an output shaft 5 and two intermediate transmission shafts 3. The oil throwing member 2 is installed at both ends of the transmission shaft 3 where the second-stage large gear is located. Of course, it is not limited to this. When applied to gearboxes of other stages, the installation position of the oil throwing member 2 is specifically set according to actual needs. For example, for a gearbox with a four-stage transmission, the oil throwing member 2 is installed at both ends of the transmission shaft 3 where the second-stage and fourth-stage large gears are located). The oil throwing member 2 rotates with the transmission shaft 3 and picks up oil, and can throw the oil to the oil guide channel, and guide it to the bearings of the gearbox through the oil guide channel and is used to lubricate the bearings.

[0038] Based on the structure described above, it can be known that as the transmission shaft 3 of the gearbox rotates, in addition to the gear carrying oil and throwing the oil to the oil collecting component 1, the oil throwing component 2 can also pick up the oil and actively throw it to the oil guide channel of the oil collecting component 1, and then guide it to the bearing through the oil guide channel. Compared with the previous method of relying solely on the gear rotation to carry oil, the oil collection amount is larger, the oil collection capacity is stronger, the lubricating oil amount is more abundant, and the lubrication effect is better. Especially under low-speed conditions, the reliability of the working lubrication of the gearbox bearing can be greatly improved. In addition, compared with forced oil supply lubrication to improve the lubrication effect, no additional lubricating oil pump is required, the structure is simple, and the manufacturing cost is low.

[0039] Preferably, the oil guide channel extends from the top of the oil collecting assembly 1 to the side wall of the oil collecting assembly 1, so as to guide the oil in all directions.

[0040] In this embodiment, preferably, the oil-slinging member 2 is a disc member, which is sleeved on the transmission shaft 3 of the gear box.

[0041] In this embodiment, preferably, Figure 4 As shown, the oil-slinging member 2 is formed with two oil-carrying grooves, which are respectively a first oil-carrying groove group and a second oil-carrying groove group;

[0042] The first oil-carrying groove group includes a plurality of first oil-carrying grooves 21, which are ratchet-shaped and can increase the amount of oil carried during operation, while splashing the lubricating oil to a higher and farther place, specifically to the top and side walls of the first oil collecting member 13. Preferably, the plurality of ratchet-shaped first oil-carrying grooves 21 are arranged clockwise along the circumference of the oil-slinging member 2, which is suitable for a gearbox that operates clockwise.

[0043] The second oil-carrying groove group includes a plurality of second oil-carrying grooves 22, which are also ratchet-shaped and play the same role as the first oil-carrying grooves 21. Here, no further description is given. Preferably, the plurality of ratchet-shaped second oil-carrying grooves 22 are arranged counterclockwise along the circumference of the oil-slinging member 2, and are suitable for a gear box that runs counterclockwise.

[0044] The first oil-carrying grooves 21 and the second oil-carrying grooves 22 are alternately arranged along the circumference of the oil-slinging member 2, and are especially symmetrically arranged about a radius passing through the two. It can be seen that the two groups of grooves can be applied to a gearbox operating in both directions, and have a wider range of applications.

[0045] Of course, it is not limited to the above examples, and can also be set according to actual needs. For example, only one oil-carrying groove group is set, and one oil-carrying groove group includes multiple ratchet-shaped oil-carrying grooves arranged at circumferential intervals along the oil-slinging member 2. The oil-carrying effect can also be met, but for the transmission shaft 3 with different rotation directions, the arrangement direction of the multiple ratchet-shaped oil-carrying grooves needs to be set accordingly.

[0046] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the oil collecting assembly 1 includes an oil guiding member 11, a first oil collecting member 13 and a second oil collecting member 14; wherein the first oil collecting member 13 is disposed outside the transmission structure inside the gearbox, and the transmission structure includes a transmission shaft 3 and other shafts and gears, etc.;

[0047] The oil guide member 11 is disposed at the top of the first oil collecting member 13 and extends from the center of the top of the first oil collecting member 13 to the side wall of the first oil collecting member 13. The oil guide member 11 is formed with an oil guide slope 111 which is inclined downward toward the side wall of the first oil collecting member 13.

[0048] An oil inlet window 132 is formed on the side wall of the first oil collecting member 13, and a first oil guide groove 131 is formed on the inner side wall of the first oil collecting member 13, and one end of the first oil guide groove 131 extends to the oil guide member 11, and the other end of the first oil guide groove 131 extends to the oil inlet window 132;

[0049] The second oil collecting component 14 is arranged outside the first oil collecting component 13, and the second oil collecting component 14 is a box body. Preferably, the second oil collecting component 14 is welded to the outer wall of the first oil collecting component 13 above the bearing seat, and it is combined with the reinforcing ribs into one, that is, the second oil collecting component 14 has both oil collecting and reinforcement functions.

[0050] The interior of the second oil collecting member 14 is connected to the interior of the first oil collecting member 13 through the oil inlet window 132 ; the second oil collecting member 14 is formed with an oil outlet hole 141 that is connected to the bearing of the gear box.

[0051] Among them, preferably, the oil guide component 11 is an oil guide plate, which extends from one end of the first oil collecting component 13 to the other end of the first oil collecting component 13, and the oil guide plate is welded to the inner top wall of the first oil collecting component 13. A V-shaped oil guide groove body 12 is welded to the lower end of the oil guide plate, and this oil guide groove body 12 corresponds to the end opening of the first oil guide groove 131 of the first oil collecting component 13, and the oil guide groove body 12 plays a role of receiving and guiding.

[0052] Also note that there are two oil guide plates in this embodiment, and the two guide plates are symmetrically arranged about the midline of the top of the first oil collecting member 13 and parallel to its length direction, that is, the two guide plates are arranged obliquely downward along the center to both sides.

[0053] According to the structure described above, the working principle of the lubrication device is as follows:

[0054] During the operation of the gearbox, under the action of centrifugal force, the oil-slinging component 2 splashes a large amount of lubricating oil onto the side walls and top wall of the first oil collecting component 13. The lubricating oil splashed onto the side walls can directly fly into the interior of the second oil collecting component 14 through the oil inlet window 132, or flow through the second oil guide groove 133, or through the oil guide slope 134 at the edge of the oil inlet window 132 and be collected into the interior of the second oil collecting component 14. The lubricating oil splashed to the top flows back into the interior of the second oil collecting component 14 through the oil guide slope 111 of the oil guide component 11, the oil guide groove body 12, the first oil guide groove 131 of the first oil collecting component 13 and the oil inlet window 132 in turn. Finally, the lubricating oil enters the oil collecting cavity of the bearing through the oil outlet hole 141 at the bottom of the second oil collecting component 14 to achieve lubrication of the bearing.

[0055] From the above working principle, it can be seen that the entire oil collection process is smooth and unobstructed, and oil can be collected at multiple locations such as the top wall and the side wall, with a larger amount of oil collected and a better oil collection effect.

[0056] In this embodiment, preferably, Figure 2 As shown, the number of second oil collecting components 14 is six, three of which are arranged on one side of the first oil collecting component 13, and the other three second oil collecting components 14 are arranged on the other side opposite to the first oil collecting component 13, and the three second oil collecting components 14 on each side are arranged in sequence along the length direction of the first oil collecting component 13, and any two adjacent second oil collecting components 14 are connected through the second oil guiding groove 133 opened on the inner wall of the first oil collecting component 13.

[0057] According to the structure described above, the reason why multiple second oil collecting members 14 are provided is mainly to lubricate bearings at different positions. Specifically, each bearing is provided with a corresponding second oil collecting member 14. The following structure can also be adopted, that is, multiple adjacent bearings share one second oil collecting member 14, which can be provided according to actual needs. Of course, the second oil collecting members 14 are not limited to the above number, and can also be provided according to actual needs.

[0058] Among them, preferably, Figure 2 As shown, the second oil guide groove 133 is parallel to the length direction of the first oil collecting member 13, and uses the shortest path to connect the two adjacent second oil collecting members 14, which accelerates the flow of oil and is easy to manufacture. In addition, the cross section of the second oil guide groove 133 along the vertical direction is a parallelogram, which has a good oil collection effect. For details, see Figure 6 shown.

[0059] In this embodiment, preferably, the distance between the oil-slinging member 2 and the inner wall of the first oil collecting member 13 is 8mm-15mm, which can ensure that the oil-slinging member 2 can throw all the oil to the top wall and side wall of the first oil collecting member 13 to avoid oil waste. At the same time, the oil-slinging member 2 maintains an appropriate distance from the first oil collecting member 13, which also ensures the normal rotation of the oil-slinging member 2 and avoids interference.

[0060] In this embodiment, preferably, Figure 1 As shown, the edge of the oil inlet window 132 close to the first oil guide groove 131 and the edge away from the first oil guide groove 131 are both provided with an inclined oil guide slope 134, and this oil guide slope 134 extends toward the second oil guide member 11 and is inclined downward, playing the role of guiding the oil, that is, it can guide the oil to flow into the second oil collecting member 14, avoiding the oil from flowing to other positions and causing waste.

[0061] In this embodiment, preferably, Figure 5 As shown, the cross section of the first oil guide groove 131 along the height direction is V-shaped, which has a good oil guide effect and helps to increase the flow rate of the oil, so that the oil can lubricate the bearing quickly and continuously.

[0062] In summary, the lubrication device has the following advantages:

[0063] An oil-slinging component 2 is additionally provided with a plurality of first ratchet-shaped oil-carrying grooves 21 and second oil-carrying grooves 22, thereby increasing the amount of oil carried during operation. In addition, the two groups of ratchet-shaped grooves are respectively arranged clockwise and counterclockwise, which can cope with gearboxes with different steering directions.

[0064] The lubricating device includes a first oil collecting member 13, a second oil collecting member 14 and a flow guide member, wherein the flow guide member is arranged on the top wall of the first oil collecting member 13, the side wall of the first oil collecting member 13 is formed with a first flow guide groove and a plurality of oil inlet windows 132, and the first oil collecting member 13 is connected to the second oil collecting member 14 through the oil inlet window 132, and a second flow guide groove is arranged between two adjacent oil inlet windows 132, and the above structure forms an oil collecting network, which can collect the lubricating oil brought by the oil throwing member 2 to the maximum extent in the second collecting member, and finally enter the oil collecting chamber of each level of bearing through the oil outlet hole 141 at the bottom of the second collecting member to achieve lubrication of the bearing. Compared with ordinary splash lubrication, this scheme has stronger oil collection capacity, more abundant lubricating oil, higher working lubrication reliability, and in addition, compared with forced lubrication, its structure is simpler and the manufacturing cost is lower.

[0065] The second oil collecting member 14 is disposed on the outer wall of the first oil collecting member 13 and is integrated with the reinforcing rib plate design to have both oil storage and reinforcement functions.

[0066] The V-shaped first oil guiding groove 131 of the first oil collecting member 13 has a better oil guiding effect.

[0067] The upper and lower edges of the oil inlet window 132 of the first oil collecting member 13 are provided with oil guiding slopes 134, which have a good oil guiding effect.

[0068] Of course, in addition to the above advantages, there are other advantages, which will not be described in detail one by one. For details, please refer to the main text of the embodiment.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application 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 application.

Claims

1. A lubrication device, characterized in that: The lubricating device comprises: an oil collecting assembly and an oil throwing member, wherein the oil collecting assembly is formed with an oil guide channel, the oil throwing member is connected to the transmission shaft of the gear box, and the oil throwing member rotates with the transmission shaft and can transport the oil to the oil guide channel after absorbing the oil, and then guide the oil to the bearing of the gear box through the oil guide channel and is used to lubricate the bearing; The oil-slinging member is formed with at least one oil-carrying groove group, and the oil-carrying groove group includes a plurality of ratchet-shaped oil-carrying grooves arranged at intervals along the circumference of the oil-slinging member; The oil-slinging member is formed with two oil-carrying groove groups, which are respectively a first oil-carrying groove group and a second oil-carrying groove group; The first oil-carrying groove group includes a plurality of first oil-carrying grooves, and the plurality of first oil-carrying grooves are arranged clockwise along the circumference of the oil-slinging member; the second oil-carrying groove group includes a plurality of second oil-carrying grooves, and the plurality of second oil-carrying grooves are arranged counterclockwise along the circumference of the oil-slinging member; The first oil-carrying grooves and the second oil-carrying grooves are alternately arranged along the circumference of the oil-slinging member; The oil guide channel extends from the top of the oil collecting assembly to the side wall of the oil collecting assembly; The oil collecting assembly includes an oil guide member, a first oil collecting member and a second oil collecting member; wherein the first oil collecting member is disposed outside the transmission structure inside the gear box, and the transmission structure includes the transmission shaft; The oil guide member is disposed at the top of the first oil collecting member and extends from the center of the top of the first oil collecting member to the side wall of the first oil collecting member, and the oil guide member is formed with an oil guide slope that faces the side wall of the first oil collecting member and slopes downward; An oil inlet window is formed on the side wall of the first oil collecting member, a first oil guide groove is formed on the inner side wall of the first oil collecting member, one end of the first oil guide groove extends to the oil guide member, and the other end opposite to the first oil guide groove extends to the oil inlet window; The second oil collecting member is arranged outside the first oil collecting member, and the second oil collecting member is a box body. The interior of the second oil collecting member is connected with the interior of the first oil collecting member through the oil inlet window; the second oil collecting member is formed with an oil outlet hole connected to the bearing of the gear box.

2. The lubrication device according to claim 1, characterized in that: There are multiple second oil collecting members arranged on each side of the first oil collecting member, and the multiple second oil collecting members arranged on each side of the first oil collecting member are arranged in sequence and spaced apart along the length direction of the first oil collecting member, and any two adjacent second oil collecting members are connected through a second oil guiding groove opened on the inner wall of the first oil collecting member.

3. The lubrication device according to claim 2, characterized in that: The second oil guiding groove is parallel to the length direction of the first oil collecting member; and / or The distance between the oil-slinging member and the inner wall of the first oil-collecting member is 8 mm-15 mm.

4. The lubrication device according to claim 1, characterized in that: An edge of the oil inlet window close to the first oil guiding groove and an edge away from the first oil guiding groove are both provided with an oil guiding slope extending toward the second oil guiding member and inclined downward.

5. The lubrication device according to claim 1, characterized in that: A V-shaped oil guide groove body is provided at one end of the oil guide member close to the first oil collecting member, and the oil guide groove body is connected with the first oil guide groove of the first oil collecting member.

6. The lubrication device according to any one of claims 1 to 5, characterized in that: The cross section of the first oil guiding groove along the height direction is V-shaped.

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