Novel oil-throwing lubrication type bevel gear box and transmission device

Abstract

The utility model provides a novel oil flinging lubrication type bevel gear box and a transmission device, and relates to the field of gear boxes, and the novel oil flinging lubrication type bevel gear box comprises a box body, a horizontal shaft, a vertical shaft, a first bevel gear, a second bevel gear and an oil flinger. The horizontal shaft and the vertical shaft are rotatably mounted on the box body through corresponding bearings respectively, the first bevel gear is mounted on the horizontal shaft, the second bevel gear is mounted on the vertical shaft, and the first bevel gear is meshed with the second bevel gear; the oil flinger is mounted on the horizontal shaft and is used for synchronously rotating along with the horizontal shaft, so that the lubricating oil is thrown to the bearing corresponding to the vertical shaft. The bevel gear box is simple and reasonable in structure, low in operation cost, low in energy consumption and stable and reliable in operation.

Description

Technical Field

[0001] The utility model relates to the field of gear boxes, in particular to a novel oil-swinging lubrication type bevel gear box and a transmission device. Background Art

[0002] A bevel gearbox is a gearbox with an internal bevel gear transmission. Its primary function is to change the transmission speed and torque, as well as the spatial direction of the output. The spatial direction of the output is generally changed by 90°, for example, changing a horizontal transmission to a vertical one, or vice versa. Bevel gearboxes have bearings located at the top of the gearbox, where lubricating oil typically cannot reach, making lubrication difficult. Therefore, lubrication of these upper bearings is critical to the proper and reliable operation of bevel gearboxes. To address this technical issue, these gearboxes often use forced lubrication via an external motor-driven lubrication pump, spraying lubricating oil onto the upper bearings.

[0003] The inventors discovered during their research that the existing bevel gear upper bearing lubrication structure has at least the following disadvantages:

[0004] The use of an external motor lubrication pump for forced lubrication makes the overall structure of the gearbox complex, increases costs, increases energy consumption, and reduces operational stability. Utility Model Content

[0005] The objectives of the present invention include, for example, providing a novel oil-swing lubricating bevel gearbox and transmission device, which can simplify the structure, reduce costs, reduce energy consumption, and improve operational stability.

[0006] The embodiment of the present utility model can be implemented as follows:

[0007] In a first aspect, the utility model provides a novel oil-swing lubrication bevel gearbox, comprising:

[0008] A housing, a horizontal shaft, a vertical shaft, a first bevel gear, a second bevel gear and an oil-slinging pan; the horizontal shaft and the vertical shaft are rotatably mounted on the housing through corresponding bearings, the first bevel gear is mounted on the horizontal shaft, the second bevel gear is mounted on the vertical shaft, and the first bevel gear and the second bevel gear are meshed; the oil-slinging pan is mounted on the horizontal shaft, and the oil-slinging pan is used to rotate synchronously with the horizontal shaft so that the lubricating oil is thrown to the bearing corresponding to the vertical shaft.

[0009] In an alternative embodiment, the novel oil-slinging lubricating bevel gearbox further includes an oil baffle cover, which is installed on the top of the box body, and the vertical shaft passes through the oil baffle cover with a clearance fit therebetween; a first oil outlet hole and an assembly hole are provided on the top of the box body, and there is a distance between the outer hole opening of the first oil outlet hole and the oil baffle cover, and the first oil outlet hole is blocked by the oil baffle cover; the first oil outlet hole is used for the lubricating oil thrown out by the oil-slinging disc to pass through; the vertical shaft is installed in the assembly hole through a bearing.

[0010] Based on the above solution, under the centrifugal force of the oil-slinging disc, the lubricating oil is thrown towards the first oil outlet hole, then leaves the first oil outlet hole and contacts the oil baffle cover, and is blocked by the oil baffle cover. The lubricating oil can fall between the oil baffle cover and the box body, and then enter the assembly hole to contact the bearing installed in the assembly hole, so as to lubricate the upper bearing.

[0011] In an alternative embodiment, the novel oil-slinging lubricating bevel gearbox further includes a through cover, which is installed on the top of the box body, and the vertical shaft passes through the through cover; a second oil outlet hole and a return oil hole are provided on the through cover, the first oil outlet hole communicates with the second oil outlet hole, and the return oil hole communicates with the assembly hole.

[0012] Based on the above solution, the lubricating oil is thrown into the first oil outlet hole, then enters the second oil outlet hole, falls on the through cover under the block of the oil baffle cover, and smoothly enters the assembly hole under the guidance of the return oil hole, and can effectively lubricate the bearing in the assembly hole. It should be understood that the top surface of the through cover can be a conical surface, and the return oil hole is located at the lower part of the conical surface. In this way, the lubricating oil falling on the through cover can be guided to the return oil hole under the action of the conical surface, and the lubricating oil can centrally flow back into the assembly hole from the return oil hole, increasing the amount of lubricating oil contacting the bearing and improving the lubrication effect.

[0013] In an alternative embodiment, the number of the return oil holes is multiple and they are arranged at intervals around the assembly hole.

[0014] Based on the above solution, multiple return oil holes are arranged at intervals around the assembly hole, and the multiple return oil holes can cooperate to introduce the lubricating oil into the assembly hole from different positions, and the lubricating oil can reach different positions of the bearing, improving the lubrication efficiency.

[0015] In an alternative embodiment, both the first oil outlet hole and the second oil outlet hole are set as rectangular holes, and the long sides of the first oil outlet hole and the second oil outlet hole are both perpendicular to the horizontal shaft.

[0016] Based on the above solution, the first oil outlet hole and the second oil outlet hole can receive the lubricating oil liquid thrown out by the oil-slinging disc to the maximum extent, so as to ensure that more lubricating oil liquid can reach the top of the box body and improve the lubrication effect on the upper bearing.

[0017] In an alternative embodiment, the novel splash lubrication type bevel gearbox further includes an oil baffle ring, which is installed on the cover plate, surrounds the second oil outlet hole, and has a spacing between the end away from the cover plate and the oil baffle cover.

[0018] Based on the above solution, after the lubricating oil comes out of the second oil outlet hole, it falls under the block of the oil baffle cover. The lubricating oil is located at the top of the cover plate. Since the second oil outlet hole is surrounded by the oil baffle ring, the lubricating oil is not likely to flow back into the box body from the second oil outlet hole, ensuring that the lubricating oil can enter the assembly hole from the oil return hole, lubricate the bearing and then return to the box body, and the lubrication effect of the bearing is good.

[0019] In an alternative embodiment, the oil baffle ring is welded to the top of the cover plate.

[0020] Based on the above solution, the connection method between the oil baffle ring and the cover plate is simple, the structure is stable and reliable, and the sealing performance is good.

[0021] In an alternative embodiment, the oil baffle cover includes a top plate, a surrounding plate and an annular folded edge. The top plate is provided with a through hole, and the vertical shaft passes through the through hole; the surrounding plate is connected to the top plate, the inner side edge of the annular folded edge is connected to the surrounding plate, and the outer side edge of the annular folded edge extends outward; the annular folded edge is fixedly connected to the box body.

[0022] Based on the above solution, the structure of the oil baffle cover is simple, and the distance between the top plate and the cover plate can be increased through the surrounding plate, thereby increasing the oil storage space and being able to store more lubricating oil. And the annular folded edge is connected to the box body, and the contact area between the annular folded edge and the box body is large, and the connection between the two is firm and reliable.

[0023] In an alternative embodiment, the annular folded edge is fixedly connected to the box body by bolts.

[0024] Based on the above solution, the connection method between the annular folded edge and the box body is simple, and a sealing ring can be provided between the annular folded edge and the box body to improve the sealing performance.

[0025] In a second aspect, the present invention provides a transmission device, which includes:

[0026] The novel splash lubrication type bevel gearbox according to any one of the foregoing embodiments.

[0027] The beneficial effects of the embodiments of the present invention include, for example:

[0028] In summary, for the novel oil-slinging lubrication type bevel gearbox provided in this embodiment, during operation, the horizontal shaft rotates to drive the oil-slinging disc to rotate. The oil-slinging disc drives the lubricating oil to move, changing the movement direction of the lubricating oil so that the lubricating oil moves towards the position where the bearing for installing the vertical shaft is located, which can increase the lubricating oil reaching the upper bearing. Thus, the bearing can be effectively lubricated by the lubricating oil. Utilizing the torque generated by the rotation of the horizontal shaft to drive the oil-slinging disc to move eliminates the need for an additional power device, reducing energy consumption, saving operating costs, and also reducing the operating failure rate and improving the reliability of the gearbox operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0030] Figure 1 Schematic diagram of the novel oil-slinging lubrication type bevel gearbox according to the embodiment of the present application;

[0031] Figure 2 Schematic diagram of the oil-slinging disc slinging oil according to the embodiment of the present application;

[0032] Figure 3 Schematic diagram of the cooperation between the through cover and the oil baffle ring according to the embodiment of the present application;

[0033] Figure 4 Schematic diagram of the oil baffle according to the embodiment of the present application.

[0034] Reference numerals:

[0035] 100 - housing; 101 - first oil outlet hole; 102 - assembly hole; 200 - horizontal shaft; 210 - first bearing; 300 - vertical shaft; 310 - second bearing; 400 - first bevel gear; 500 - second bevel gear; 600 - oil-slinging disc; 700 - oil baffle; 710 - top plate; 720 - surrounding plate; 730 - annular flange; 800 - through cover; 801 - second oil outlet hole; 802 - oil return hole; 900 - oil baffle ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0037] Accordingly, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0038] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is customarily placed during use. It is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation of the present utility model.

[0040] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0041] It should be noted that, without conflict, the features in the embodiments of the present utility model can be combined with each other.

[0042] In the prior art, the position of the bearing between the vertical shaft 300 of the bevel gearbox and the housing 100 is relatively high, and it is not easy for the lubricating oil to directly reach the position where the bearing is located, and the lubrication effect of the bearing at this position is poor. In order to ensure the reliability of the bearing operation, generally an external lubricating pump is adopted, and the lubricating oil is forcibly conveyed to the position where the upper bearing is located through an oil delivery pipe. In this way, additional power is increased, the structure is complex, and the operation cost is high.

[0043] In view of this, the designer provides a new type of oil-slinging lubrication bevel gearbox, which has a simple and reasonable structure, stable and reliable operation, and low operation cost.

[0044] Please combine Figures 1-4, in this embodiment, the novel oil-slinging lubrication type bevel gearbox includes a box body 100, a horizontal shaft 200, a vertical shaft 300, a first bevel gear 400, a second bevel gear 500, and an oil-slinging disc 600. The horizontal shaft 200 and the vertical shaft 300 are respectively rotatably installed in the box body 100 through corresponding bearings. The first bevel gear 400 is installed on the horizontal shaft 200, the second bevel gear 500 is installed on the vertical shaft 300, and the first bevel gear 400 and the second bevel gear 500 are meshed; the oil-slinging disc 600 is installed on the horizontal shaft 200, and the oil-slinging disc 600 is used to rotate synchronously with the horizontal shaft 200, so that the lubricating oil liquid is slung towards the bearing corresponding to the vertical shaft 300.

[0045] As described above, the working process of the novel oil-slinging lubrication type bevel gearbox provided in this embodiment is as follows:

[0046] For example, taking the vertical shaft 300 as the driving shaft, torque is input to the vertical shaft 300, the first bevel gear 400 is driven to rotate through the second bevel gear 500, thereby driving the horizontal shaft 200 to rotate. The horizontal shaft 200 outputs torque. At the same time, the rotation of the horizontal shaft 200 drives the oil-slinging disc 600 to rotate together. When the oil-slinging disc 600 rotates together with the horizontal shaft 200, the oil-slinging disc 600 drives the lubricating oil liquid to move, which can change the movement direction of the lubricating oil liquid, so that the lubricating oil liquid moves towards the position of the bearing where the vertical shaft 300 is installed, and the lubricating oil liquid reaching the upper bearing can be increased, thereby effectively lubricating the bearing through the lubricating oil liquid. Utilizing the torque generated by the rotation of the horizontal shaft 200 to drive the oil-slinging disc 600 to move does not require an additional power device, reduces energy consumption, saves operation costs, and also reduces the operation failure rate, improving the reliability of the gearbox operation.

[0047] It should be understood that in other scenarios, the horizontal shaft 200 can also be the driving shaft, that is, torque is input from the horizontal shaft 200. Correspondingly, the vertical shaft 300 is the output shaft and outputs torque.

[0048] The following embodiments will illustrate the detailed structure of the novel oil-slinging lubrication type bevel gearbox of the present application by way of examples.

[0049] Please combine Figure 1 , in this embodiment, optionally, the novel oil-slinging lubrication type bevel gearbox includes a box body 100, a horizontal shaft 200, a vertical shaft 300, a first bevel gear 400, a second bevel gear 500, an oil-slinging disc 600, an oil baffle 700, a gland 800, and an oil retaining ring 900.

[0050] The horizontal shaft 200 is rotatably coupled to the housing 100 via a first bearing 210 and is arranged horizontally. The vertical shaft 300 is rotatably mounted to the housing 100 via a second bearing 310 and is arranged vertically. The horizontal shaft 200 and the vertical shaft 300 are arranged perpendicularly. The first bevel gear 400 can be fixedly connected to the horizontal shaft 200 via a spline or the like, and the second bevel gear 500 can be fixedly connected to the vertical shaft 300 via a spline or the like. The first bevel gear 400 and the second bevel gear 500 mesh together to transmit torque between the horizontal shaft 200 and the vertical shaft 300. The oil slinger 600 is sleeved onto the exterior of the horizontal shaft 200. The two can be connected via a spline or other structure, or they can have an interference fit, so that the oil slinger 600 rotates with the horizontal shaft 200.

[0051] At the same time, the oil shield 700 and the transparent cover 800 are both installed on the top of the box body 100 , and the oil shield ring 900 is installed on the transparent cover 800 .

[0052] Optionally, a first oil outlet hole 101 and an assembly hole 102 are provided on the top of the housing 100. The first oil outlet hole 101 is a rectangular hole, with its long side perpendicular to the horizontal axis 200. The assembly hole 102 is a circular hole, the outer ring of the second bearing 310 is fixed in the assembly hole 102, and the vertical shaft 300 is disposed in the inner ring of the second bearing 310. The vertical shaft 300 also passes through the transparent cover 800 and the oil shield 700.

[0053] Correspondingly, the transparent cover 800 is provided with a second oil outlet hole 801 and an oil return hole 802. The second oil outlet hole 801 is a rectangular hole, and the second oil outlet hole 801 is connected to the first oil outlet hole 101. The oil return hole 802 is connected to the assembly hole 102. The transparent cover 800 is installed on the top of the box body 100. The height of the transparent cover 800 is higher than the height of the assembly hole 102. The transparent cover 800 is provided with a vertically extending oil return hole 802. The lubricating oil thrown to the first oil outlet hole 101 by the oil-slinging plate 600 enters between the transparent cover 800 and the oil shield 700 from the second oil outlet hole 801, and then flows from the oil return hole 802 to the assembly hole 102 under the action of gravity, and lubricates the second bearing 310 in the assembly hole 102. Since the first oil outlet hole 101 and the second oil outlet hole 801 are rectangular holes, the amount of lubricating oil entering the first oil outlet hole 101 can be increased, thereby improving the lubrication effect of the second bearing 310.

[0054] It should be understood that there can be multiple oil return holes 802, and multiple oil return holes 802 can be arranged around the assembly hole 102. The lubricating oil can flow back to the bearing position from different oil return holes 802 to lubricate different positions of the bearing and improve lubrication efficiency.

[0055] Optionally, the oil baffle ring 900 is installed at one end of the second oil outlet hole 801 away from the first oil outlet hole 101, and the oil baffle ring 900 surrounds the orifice of the second oil outlet hole 801. In this way, after the lubricating oil comes out of the second oil outlet hole 801, the lubricating oil falls under the blockage of the oil baffle cover 700, and the lubricating oil is located at the top of the through cover 800. Since the second oil outlet hole 801 is surrounded by the oil baffle ring 900, the lubricating oil is not likely to flow back into the box body 100 from the second oil outlet hole 801, ensuring that the lubricating oil can enter the assembly hole 102 from the oil return hole 802, lubricate the bearing and then return to the box body 100, and the lubrication effect of the bearing is good.

[0056] It should be noted that the oil baffle ring 900 can be welded to the top of the through cover 800, and the combination of the oil baffle ring 900 and the through cover 800 is firm and reliable.

[0057] Optionally, the oil baffle cover 700 includes a top plate 710, a surrounding plate 720 and an annular flange 730. The top plate 710 is a circular plate, and a through hole is provided in the middle of the top plate 710. The vertical shaft 300 passes through the through hole, and the two are in clearance fit. The rotating shaft of the vertical shaft 300 will not contact the top plate 710 and is not likely to cause interference. The surrounding plate 720 is a cylindrical structure with both ends open. One end of the surrounding plate 720 is fixedly connected to the outer edge of the top plate 710, and the two define a circular groove. The annular flange 730 is a circular ring plate. The inner circular edge of the annular flange 730 is connected to the side of the surrounding plate 720 away from the top plate 710, and the outer circular edge of the annular flange 730 extends outward, that is, the annular flange 730 is folded outward relative to the surrounding plate 720. The annular flange 730 and the box body 100 can be fixedly connected by structural parts such as bolts. The oil baffle cover 700 is installed on the top of the box body 100, covering the through cover 800 and the oil baffle ring 900 together. When the lubricating oil discharged from the second oil outlet hole 801 moves upward, it can contact the top plate 710, thereby changing the movement direction, falling on the through cover 800 under gravity, entering the assembly hole 102 from the oil return hole 802, and lubricating the second bearing 310 in the assembly hole 102.

[0058] In order to improve the sealing performance of the connection position between the annular flange 730 and the box body 100, a sealing ring can be provided between the annular flange 730 and the box body 100.

[0059] In the novel oil slinging lubrication type bevel gearbox provided in this embodiment, the oil slinging disc 600 can rotate together with the horizontal shaft 200, so that the lubricating oil has a certain speed. The lubricating oil enters the first oil outlet hole 101 and the second oil outlet hole 801, and then flows back between the through cover 800 and the oil baffle cover 700 under the blockage of the oil baffle cover 700, enters the assembly hole 102 from the oil return hole 802 on the through cover 800, and lubricates the second bearing 310 in the assembly hole 102, thus realizing the lubrication of the upper bearing, with good lubrication effect, no need to add additional power equipment, saving energy consumption and reducing costs.

[0060] This embodiment also provides a transmission device, which includes a new type of splash lubrication bevel gearbox and has the advantages of low operating energy consumption and low cost.

[0061] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A novel oil-slinging lubrication type bevel gearbox, characterized in that, Comprising: A box body (100), a horizontal shaft (200), a vertical shaft (300), a first bevel gear (400), a second bevel gear (500) and an oil slinger (600); the horizontal shaft (200) and the vertical shaft (300) are respectively rotatably mounted on the box body (100) through corresponding bearings, the first bevel gear (400) is mounted on the horizontal shaft (200), the second bevel gear (500) is mounted on the vertical shaft (300), and the first bevel gear (400) and the second bevel gear (500) are meshed; the oil slinger (600) is mounted on the horizontal shaft (200), and the oil slinger (600) is used to rotate synchronously with the horizontal shaft (200) so that the lubricating oil is slung towards the bearing corresponding to the vertical shaft (300).

2. The novel oil-slinging lubricated bevel gearbox according to claim 1, characterized in that: The novel oil-slinging lubricated bevel gearbox further comprises an oil baffle (700), the oil baffle (700) is mounted on the top of the box body (100), the vertical shaft (300) penetrates through the oil baffle (700) and they are in clearance fit; a first oil outlet hole (101) and an assembly hole (102) are provided on the top of the box body (100), and the outer orifice of the first oil outlet hole (101) has a spacing from the oil baffle (700) and is blocked by the oil baffle (700); The first oil outlet hole (101) is used for the lubricating oil slung by the oil slinger (600) to pass through; the vertical shaft (300) is mounted in the assembly hole (102) through a bearing.

3. The novel oil-slinging lubricated bevel gearbox according to claim 2, characterized in that: The novel oil-slinging lubricated bevel gearbox further comprises a through cover (800), the through cover (800) is mounted on the top of the box body (100), and the vertical shaft (300) penetrates through the through cover (800); a second oil outlet hole (801) and an oil return hole (802) are provided on the through cover (800), the first oil outlet hole (101) communicates with the second oil outlet hole (801), and the oil return hole (802) communicates with the assembly hole (102).

4. The novel oil-slinging lubricated bevel gearbox according to claim 3, characterized in that: The number of the oil return holes (802) is multiple and they are arranged at intervals around the assembly hole (102).

5. The novel oil-slinging lubricated bevel gearbox according to claim 3, characterized in that: Both the first oil outlet hole (101) and the second oil outlet hole (801) are set as rectangular holes, and the long sides of the first oil outlet hole (101) and the second oil outlet hole (801) are both perpendicular to the horizontal shaft (200).

6. The novel oil-slinging lubricated bevel gearbox according to claim 3, characterized in that: The novel oil slinging lubrication type bevel gearbox further includes an oil baffle ring (900). The oil baffle ring (900) is installed on the through cover (800). The oil baffle ring (900) is arranged around the second oil outlet hole (801). There is a spacing between the end of the oil baffle ring (900) away from the through cover (800) and the oil baffle cover (700).

7. The novel oil slinging lubrication type bevel gearbox according to claim 6, characterized in that: The oil baffle ring (900) is welded to the top of the through cover (800).

8. The novel oil slinging lubrication type bevel gearbox according to any one of claims 2-7, characterized in that: The oil baffle cover (700) includes a top plate (710), a surrounding plate (720) and an annular flange (730). The top plate (710) is provided with a through hole, and the vertical shaft (300) passes through the through hole. The surrounding plate (720) is connected to the top plate (710). The inner side of the annular flange (730) is connected to the surrounding plate (720), and the outer side of the annular flange (730) extends outwards. The annular flange (730) is fixedly connected to the box body (100).

9. The novel oil slinging lubrication type bevel gearbox according to claim 8, characterized in that: The annular flange (730) is fixedly connected to the box body (100) by bolts.

10. A transmission device, characterized in that, The transmission device includes: The novel oil slinging lubrication type bevel gearbox according to any one of claims 1-9.

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