Oil throwing device for gear box

Abstract

The utility model discloses an oil slinging device for a gear box, which comprises a box body, a first transmission gear shaft, two first bearings, a first gear, a second transmission gear shaft, two second bearings, a second gear, a first oil receiving piece, a first oil slinging piece, a second oil receiving piece and a second oil slinging piece are arranged in the box body, the first transmission gear shaft is meshed with the first gear, and the second transmission gear shaft is meshed with the second gear. The second transmission gear shaft is meshed with the second gear, and the second transmission gear shaft is sleeved with the first gear. Through the application of the oil slinging device for the gear box, the two first bearings are lubricated through the cooperation of the first oil receiving piece, the first oil slinging piece, the second oil receiving piece and the second oil slinging piece, full lubrication and cooling of the two first bearings are guaranteed, the oil level of lubricating oil in the box body is lowered, and the service life of the gear box is prolonged. And therefore, the oil stirring thermal power loss of gear pair transmission is reduced, and the working efficiency of the speed reducer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to an oil throwing device for a gear box. Background Art

[0002] Bearing lubrication in reducers usually adopts lubrication by oil immersion or forced circulation lubrication. However, lubricating bearings by oil immersion will increase the heat power loss of oil stirring in the reducer, and forced oil injection lubrication of bearings will be limited by space and increase product costs. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide an oil throwing device for a gear box, comprising:

[0004] A casing, wherein a first transmission gear shaft, two first bearings, a first gear, a second transmission gear shaft, two second bearings, a second gear, a first oil receiving part, a first oil throwing part, a second oil receiving part and a second oil throwing part are installed in the casing, the two first bearings are installed on the inner walls at both ends of the casing, the two first bearings are sleeved on both ends of the outer wall of the first transmission gear shaft, and one end of the first transmission gear shaft passes through the inner wall of one end of the casing and extends out of the casing, the two second bearings are installed on the inner walls at both ends of the casing, the two second bearings are sleeved on both ends of the outer wall of the second transmission gear shaft, the other end of the first transmission gear shaft is meshed with the first gear, one end of the second transmission gear shaft is meshed with the second gear, the first gear is sleeved on the other end of the outer wall of the second transmission gear shaft, the first oil receiving part is arranged on one side of the first transmission gear shaft, the second oil receiving part is arranged between the first transmission gear shaft and the second transmission gear shaft, the first oil throwing part is sleeved on one end of the second transmission gear shaft, the second oil throwing part is sleeved on the other end of the second transmission gear shaft, and the first oil throwing part and the second oil throwing part are arranged between the two second bearings.

[0005] In another preferred embodiment, the housing includes: a main shell, an end cover and a bottom cover, the end cover and the bottom cover are installed at both ends of the main shell, the two first bearings, the two second bearings, the first oil receiving piece and the second oil receiving piece are all installed in the main shell, and one end of the first transmission gear shaft is arranged through the end cover.

[0006] In another preferred embodiment, a plurality of oil guide grooves and oil guide holes are provided on the inner wall of the main housing, one end of each of the oil guide grooves is connected to the first oil receiving piece, the other end of each of the oil guide grooves is connected to one end of a corresponding oil guide hole, and the other end of each of the oil guide holes is arranged toward a corresponding first bearing.

[0007] In another preferred embodiment, the first oil receiving member and the second oil receiving member are both oil receiving boxes, the upper surface of the oil receiving box is open, and the side wall of the oil receiving box is provided with a plurality of oil outlet holes, wherein each of the oil outlet holes of one of the oil receiving boxes is connected to one end of a corresponding oil guide groove, and each of the oil outlet holes of the other oil receiving box is arranged toward a corresponding first bearing.

[0008] In another preferred embodiment, the first oil-slinging member and the second oil-slinging member both include: a sleeve and a ring edge, the sleeve is sleeved on the outer wall of the second transmission gear shaft, the ring edge is installed on the outer wall of the sleeve, the ring edge is arranged along the circumference of the sleeve, and a plurality of grooves are provided on both surfaces of the ring edge, and the plurality of grooves are arranged in sequence along the circumference of the ring edge, and the length direction of each groove is extended along the radial direction of the ring edge, and each groove is connected to the outer edge of the ring edge.

[0009] In another preferred embodiment, eight grooves are respectively formed on two surfaces of the ring edge.

[0010] In another preferred embodiment, the plurality of grooves on the two surfaces of the ring edge are coaxially arranged.

[0011] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, an oil-slinging device for a gear box is provided, and the two first bearings are lubricated by the cooperation of the first oil receiving member, the first oil-slinging member, the second oil receiving member and the second oil-slinging member, thereby ensuring sufficient lubrication and cooling of the two first bearings, lowering the lubricating oil level in the box body, thereby reducing the oil stirring heat power loss of the gear pair transmission, and improving the working efficiency of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a first partial schematic diagram of an oil-throwing device for a gear box of the utility model;

[0013] Figure 2 It is a first cross-sectional schematic diagram of an oil-throwing device for a gear box of the utility model;

[0014] Figure 3 It is a second cross-sectional schematic diagram of an oil-throwing device for a gear box of the utility model;

[0015] Figure 4 This is a second partial schematic diagram of an oil-throwing device for a gear box of the utility model;

[0016] Figure 5 This is a third cross-sectional schematic diagram of an oil-throwing device for a gear box of the utility model.

[0017] In the accompanying drawings: 1. casing; 2. first transmission gear shaft; 3. first bearing; 4. first gear; 5. second transmission gear shaft; 6. second bearing; 7. second gear; 8. first oil receiving part; 9. first oil throwing part; 10. second oil receiving part; 11. second oil throwing part; 12. main casing; 13. end cover; 14. bottom cover; 15. oil guide groove; 16. oil guide hole; 17. bushing; 18. ring edge; 19. groove. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0019] like Figures 1 to 5 As shown, a preferred embodiment of the gear box oil throwing device is shown, comprising:

[0020] A box body 1 is provided with a first transmission gear shaft 2, two first bearings 3, a first gear 4, a second transmission gear shaft 5, two second bearings 6, a second gear 7, a first oil receiving member 8, a first oil throwing member 9, a second oil receiving member 10 and a second oil throwing member 11. The two first bearings 3 are installed on the inner walls at both ends of the box body 1. The two first bearings 3 are sleeved on both ends of the outer wall of the first transmission gear shaft 2, and one end of the first transmission gear shaft 2 passes through the inner wall of one end of the box body 1 and extends out of the box body 1. The two second bearings 6 are installed on the inner walls at both ends of the box body 1. The two second bearings 6 are sleeved on the second transmission gear shaft 5 The first gear 4 is meshed with the other end of the outer wall of the first transmission gear shaft 2, and one end of the second transmission gear shaft 5 is meshed with the second gear 7. The first gear 4 is sleeved on the other end of the outer wall of the second transmission gear shaft 5. The first oil receiving part 8 is arranged on one side of the first transmission gear shaft 2, and the second oil receiving part 10 is arranged between the first transmission gear shaft 2 and the second transmission gear shaft 5. The first oil throwing part 9 is sleeved on one end of the second transmission gear shaft 5, and the second oil throwing part 11 is sleeved on the other end of the second transmission gear shaft 5, and the first oil throwing part 9 and the second oil throwing part 11 are arranged between the two second bearings 6.

[0021] During actual use, the first gear 4 is driven to rotate by the rotation of the first transmission gear shaft 2. The first gear 4 is sleeved on the outer wall of the second transmission gear shaft 5, thereby driving the second transmission gear shaft 5 to rotate, and the second transmission gear shaft 5 then drives the second gear 7 to rotate. At this time, the first gear 4 throws the lubricating oil in the casing 1 into the first oil receiving piece 8, and the lubricating oil in the first oil receiving piece 8 enters the two first bearings 3 through the oil guide groove 15 and the oil guide hole 16 on the inner wall of the main casing 12, completing the lubrication of the two first bearings 3. At the same time, the second gear 7 drives the first oil throwing piece 9 and the second oil throwing piece 11 to rotate, and the first oil throwing piece 9 and the second oil throwing piece 11 throw the lubricating oil in the casing 1 into the second oil receiving piece 10, and the lubricating oil in the second oil receiving piece 10 also enters the two first bearings 3, ensuring sufficient lubrication of the two first bearings 3.

[0022] Further, as a preferred embodiment, the housing 1 includes: a main shell 12, an end cover 13 and a bottom cover 14, the end cover 13 and the bottom cover 14 are installed at both ends of the main shell 12, the two first bearings 3, the two second bearings 6, the first oil receiving part 8 and the second oil receiving part 10 are all installed in the main shell 12, and one end of the first transmission gear shaft 2 is arranged through the end cover 13.

[0023] Further, as a preferred embodiment, the inner wall of the main housing 12 is provided with a plurality of oil guide grooves 15 and oil guide holes 16, one end of each of the plurality of oil guide grooves 15 is connected to the first oil receiving member 8, the other end of each of the oil guide grooves 15 is connected to one end of a corresponding oil guide hole 16, and the other end of each of the oil guide holes 16 is arranged toward a corresponding first bearing 3. Further, by providing a plurality of oil guide grooves 15 and oil guide holes 16 on the inner wall of the main housing 12, the lubricating oil in the first oil receiving member 8 enters the two first bearings 3, thereby ensuring sufficient lubrication of the two first bearings 3.

[0024] Further, as a preferred embodiment, the first oil receiving member 8 and the second oil receiving member 10 are both oil receiving boxes, the upper surface of the oil receiving box is open, and the side wall of the oil receiving box is provided with a plurality of oil outlet holes, wherein each oil outlet hole of one oil receiving box is connected to one end of a corresponding oil guide groove 15, and each oil outlet hole of the other oil receiving box is arranged toward a corresponding first bearing 3. Further, both ends of the first oil receiving member 8 and both ends of the second oil receiving member 10 are installed on the inner wall of the main housing 12, the oil outlet hole of the first oil receiving member 8 is connected to the oil guide groove 15, so that the lubricating oil flows into the oil guide groove 15, and then lubricates the two first bearings 3, and the oil outlet hole of the second oil receiving member 10 is arranged toward the two first bearings 3, so as to facilitate lubrication of the two second supports. Further, the oil receiving box is a conventional technical means in this field, and will not be described in detail here.

[0025] Further, as a preferred embodiment, the bottom of the first oil receiving member 8 is arranged in an arc shape, and the horizontal heights of the two ends of the first oil receiving member 8 are smaller than the horizontal height of the middle portion. Further, the bottom of the first oil receiving member 8 is arranged in an arc shape, which facilitates the lubricating oil to flow into the oil guide groove 15, and then lubricates the two first bearings 3.

[0026] Further, as a preferred embodiment, the first oil-slinging member 9 and the second oil-slinging member 11 both include: a sleeve 17 and an annular edge 18, the sleeve 17 is sleeved on the outer wall of the second transmission gear shaft 5, the annular edge 18 is installed on the outer wall of the sleeve 17, the annular edge 18 is arranged along the circumference of the sleeve 17, and a plurality of grooves 19 are provided on both surfaces of the annular edge 18, the plurality of grooves 19 are arranged in sequence along the circumference of the annular edge 18, the length direction of each groove 19 is extended along the radial direction of the annular edge 18, and each groove 19 is connected to the outer edge of the annular edge 18. Further, by providing the grooves 19 on the surface of the annular edge 18, it is convenient to collect lubricating oil, and then it is convenient for more lubricating oil to enter the second oil receiving member 10, so as to lubricate the two first bearings 3.

[0027] Furthermore, as a preferred embodiment, eight grooves 19 are respectively formed on the two surfaces of the ring edge 18 .

[0028] Furthermore, as a preferred embodiment, the plurality of grooves 19 on the two surfaces of the ring edge 18 are coaxially arranged.

[0029] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil throwing device for a gear box, characterized in that: include: A casing, wherein a first transmission gear shaft, two first bearings, a first gear, a second transmission gear shaft, two second bearings, a second gear, a first oil receiving part, a first oil throwing part, a second oil receiving part and a second oil throwing part are installed in the casing, the two first bearings are installed on the inner walls at both ends of the casing, the two first bearings are sleeved on both ends of the outer wall of the first transmission gear shaft, and one end of the first transmission gear shaft passes through the inner wall of one end of the casing and extends out of the casing, the two second bearings are installed on the inner walls at both ends of the casing, the two second bearings are sleeved on both ends of the outer wall of the second transmission gear shaft, the other end of the first transmission gear shaft is meshed with the first gear, one end of the second transmission gear shaft is meshed with the second gear, the first gear is sleeved on the other end of the outer wall of the second transmission gear shaft, the first oil receiving part is arranged on one side of the first transmission gear shaft, the second oil receiving part is arranged between the first transmission gear shaft and the second transmission gear shaft, the first oil throwing part is sleeved on one end of the second transmission gear shaft, the second oil throwing part is sleeved on the other end of the second transmission gear shaft, and the first oil throwing part and the second oil throwing part are arranged between the two second bearings.

2. The oil throwing device for a gear box according to claim 1, characterized in that: The box body includes: a main shell, an end cover and a bottom cover, the end cover and the bottom cover are installed at both ends of the main shell, the two first bearings, the two second bearings, the first oil receiving piece and the second oil receiving piece are all installed in the main shell, and one end of the first transmission gear shaft is arranged through the end cover.

3. The oil throwing device for a gear box according to claim 2, characterized in that: The inner wall of the main housing is provided with a plurality of oil guide grooves and oil guide holes, one end of each of the oil guide grooves is connected with the first oil receiving piece, the other end of each of the oil guide grooves is connected with one end of a corresponding oil guide hole, and the other end of each of the oil guide holes is arranged toward a corresponding first bearing.

4. The oil-spinning device for a gearbox according to claim 3, characterized in that: The first oil receiving part and the second oil receiving part are both oil receiving boxes, the upper surface of the oil receiving box is open, and the side wall of the oil receiving box is provided with a plurality of oil outlet holes, wherein each of the oil outlet holes of one of the oil receiving boxes is connected to one end of a corresponding oil guide groove, and each of the oil outlet holes of the other oil receiving box is arranged toward a corresponding first bearing.

5. The oil-spinning device for a gearbox according to claim 1, characterized in that: The first oil-slinging member and the second oil-slinging member both include: a sleeve and an annular edge, the sleeve is sleeved on the outer wall of the second transmission gear shaft, the annular edge is installed on the outer wall of the sleeve, the annular edge is arranged along the circumference of the sleeve, and a plurality of grooves are provided on both surfaces of the annular edge, and the plurality of grooves are arranged in sequence along the circumference of the annular edge, and the length direction of each groove is extended along the radial direction of the annular edge, and each groove is connected to the outer edge of the annular edge.

6. The oil-spinning device for a gearbox according to claim 5, characterized in that: The two surfaces of the ring edge are respectively provided with eight grooves.

7. The oil throwing device for a gear box according to claim 5, characterized in that: The plurality of grooves on the two surfaces of the ring edge are coaxially arranged.

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