CN211398526U - Oil distribution structure of gear box - Google Patents
Oil distribution structure of gear box Download PDFInfo
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- CN211398526U CN211398526U CN201922326194.5U CN201922326194U CN211398526U CN 211398526 U CN211398526 U CN 211398526U CN 201922326194 U CN201922326194 U CN 201922326194U CN 211398526 U CN211398526 U CN 211398526U
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Abstract
The application discloses oil distribution structure of gear box relates to gear drive's technical field. The oil distribution structure of the gear box comprises a box shell, an oil distribution ring, a first bearing and a second bearing, wherein the box shell is provided with a bearing hole and an oil inlet hole communicated with the bearing hole; the oil distribution ring is provided with an oil way which communicates the oil inlet with the oil cavity. So this application can give two bearings, lubricated two bearings simultaneously with the leading-in lubricating oil dispersion through the inlet port.
Description
Technical Field
The application relates to the technical field of gear transmission equipment, in particular to an oil distribution structure of a gear box.
Background
In the gear box, especially in track traffic subway gear box, the lubricated mode of adoption generally is the lubrication by splashing, and lubricating oil lubricates the bearing on the input shaft through the oil feed hole on the case shell.
In the prior art, one end part of an input shaft of the gearbox is often sleeved with two bearings, and the introduced lubricating oil through an oil inlet hole can only lubricate the bearing on one side of the input shaft, so that the bearing on one side is not lubricated enough, the bearing is dried and grinded to generate heat, and the service life of the bearing is shortened.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a branch oil structure of gear box, it can be with giving two bearings through the leading-in lubricating oil dispersion of inlet port, lubricated two bearings simultaneously.
The embodiment of the application is realized as follows:
the oil distribution structure of the gearbox comprises a gearbox shell, an oil distribution ring, a first bearing and a second bearing, wherein the gearbox shell is provided with a bearing hole and an oil inlet hole communicated with the bearing hole, the first bearing and the second bearing are arranged in the bearing hole, the first bearing and the second bearing are arranged at intervals to form an oil cavity, and the oil distribution ring is clamped between the first bearing and the second bearing and is abutted against an outer ring of the first bearing and an outer ring of the second bearing; and the oil distribution ring is provided with an oil way which communicates the oil inlet with the oil cavity.
In an embodiment, an oil guiding ring groove is formed in an outer ring wall of the oil distribution ring, the oil guiding ring groove is disposed around the oil distribution ring by one circle, a plurality of oil guiding openings are formed in the outer ring wall of the oil distribution ring, and the oil guiding openings penetrate through an inner ring wall of the oil distribution ring, wherein the oil guiding ring groove and the oil guiding openings form the oil path.
In one embodiment, the oil guiding opening penetrates through an end face of the oil distribution ring.
In one embodiment, the oil guiding ring groove penetrates through an end face of the oil separating ring.
In an embodiment, the aperture of the oil guiding opening is greater than or equal to the groove width of the oil guiding ring groove.
In one embodiment, the oil guide openings are distributed in a circumferential array around the axis of the oil distribution ring.
In one embodiment, the oil distribution ring has a ring width smaller than an outer ring width of the first bearing, and the oil distribution ring has a ring width smaller than an outer ring width of the second bearing.
In one embodiment, the groove width of the oil guide ring groove is smaller than the axial width of the oil distribution ring.
In one embodiment, an outer ring wall of the oil distribution ring is in contact with an inner wall of the bearing hole.
In one embodiment, the oil distribution structure of the gearbox comprises a distance ring, wherein the distance ring is clamped between the first bearing and the second bearing and is abutted against an inner ring of the first bearing and an inner ring of the second bearing; wherein the distance ring, the oil-separating ring, the first bearing and the second bearing enclose the oil chamber.
In one embodiment, the oil distribution structure of the gearbox comprises a rotating shaft and a blank cap, and the first bearing and the second bearing are sleeved on the rotating shaft; the blank cap cover is arranged in the bearing hole and is abutted to the outer ring of the first bearing.
Compared with the prior art, the beneficial effect of this application is: this application can be through dividing the oil ring to establish branch oil route in the middle of two bearings to can give two bearings by the leading-in oil circuit dispersion of oil inlet through dividing the oil ring, lubricated two bearings simultaneously, make the lubricated effect of bearing better, avoid the bearing dry grinding to generate heat, prolong the life of bearing, reduce the maintenance cost.
In addition, the oil distribution ring can be an independent accessory, a ring groove does not need to be processed in a bearing hole of the box shell, the problem of local stress concentration of the box body is avoided, the bearing capacity of the box body is improved, the oil distribution ring is simple in structure, easy to manufacture and low in production and manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a cross-sectional view of an oil distribution structure of a gearbox according to an embodiment of the present application;
FIG. 2 is an enlarged view of section A of FIG. 1 of the present application;
fig. 3 is a sectional view of an oil control ring according to an embodiment of the present application;
FIG. 4 is a right side view of the oil control ring according to one embodiment of the present application;
fig. 5 is a sectional view of an oil control ring according to an embodiment of the present application;
FIG. 6 is a right side view of the oil control ring according to an embodiment of the present application;
fig. 7 is a sectional view of an oil control ring according to an embodiment of the present application;
FIG. 8 is a right side view of the oil control ring according to one embodiment of the present application;
FIG. 9 is a cross-sectional view of an oil distribution structure of a gearbox according to an embodiment of the present application;
FIG. 10 is a cross-sectional view of an oil distribution structure of a gearbox according to an embodiment of the present application.
Icon: 100-oil separation structure of gearbox; 200-a box shell; 210-a bearing bore; 220-oil inlet hole; 310-a first bearing; 320-a second bearing; 330-a third bearing; 400-distance rings; 500-oil separating ring; 500 a-left end face; 500 b-right end face; 500 c-outer ring wall; 500 d-inner ring wall; 510-oil path; 511-oil guide ring groove; 512-oil guide hole opening; 600-a rotating shaft; 610-a gear; 620-shaft press plate; 700-an oil protection ring; 800-blank cap; 900-oil chamber.
Detailed Description
The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.
In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1, a sectional view of an oil distribution structure 100 of a gearbox according to an embodiment of the present application is shown. Please refer to fig. 2, which is an enlarged view of a portion a of fig. 1. The oil distribution structure 100 of the gearbox comprises a box shell 200, a rotating shaft 600, an oil distribution ring 500, a distance ring 400, a first bearing 310 and a second bearing 320, wherein the box shell 200 is provided with a bearing hole 210 and an oil inlet hole 220 communicated with the bearing hole 210, the rotating shaft 600 is sleeved with the first bearing 310 and the second bearing 320, the first bearing 310 and the second bearing 320 are installed in the bearing hole 210, and the first bearing 310 and the second bearing 320 are arranged at intervals. The distance ring 400 is interposed between the first bearing 310 and the second bearing 320, and abuts against the inner race of the first bearing 310 and the inner race of the second bearing 320.
The oil control ring 500 is interposed between the first bearing 310 and the second bearing 320, and abuts against the outer ring of the first bearing 310 and the outer ring of the second bearing 320. The oil cavity 900 is defined by the distance ring 400, the oil distribution ring 500, the first bearing 310 and the second bearing 320, the oil path 510 is arranged on the oil distribution ring 500, and the oil inlet 220 is communicated with the oil cavity 900 through the oil path 510.
In this embodiment, the first bearing 310 is located on the left side of the second bearing 320. The first bearing 310 is a four-point ball bearing and the second bearing 320 is a cylindrical roller bearing. The axial width of the oil distribution ring 500 is equal to the axial width of the distance ring 400. The outer ring wall 500c of the oil distribution ring 500 is in contact with the inner wall of the bearing hole 210, and in this embodiment, the oil distribution ring 500 is in clearance fit with the bearing hole 210.
In the present embodiment, the oil distribution ring 500 establishes the oil distribution path between the first bearing 310 and the second bearing 320, so that the lubricating oil introduced from the oil inlet 220 can be distributed to the first bearing 310 and the second bearing 320 through the oil path 510 of the oil distribution ring 500, and the first bearing 310 and the second bearing 320 are lubricated at the same time, so that the first bearing 310 and the second bearing 320 have a better lubricating effect, the service lives of the first bearing 310 and the second bearing 320 are prolonged, and the maintenance cost is reduced.
In another embodiment, the oil-separating ring 500 is integrally formed with the housing 200. In this embodiment, oil distribution ring 500 is split type structure with case shell 200, and oil distribution ring 500 is independent accessory promptly, need not to process the annular in the dead eye 210 of case shell 200, avoids arousing the problem of box local stress concentration, improves box bearing capacity, and oil distribution ring 500 simple structure, easily makes, and production manufacturing cost is lower.
In an embodiment, the rotating shaft 600 may be an input shaft, an output shaft or an intermediate transmission shaft of a gearbox. The oil distribution structure 100 of the gearbox can be applied to a gearbox such as a track traffic gearbox, a speed reducer, or a gearbox for a machine tool. In one embodiment, the oil distribution structure 100 of the gearbox is applied to a gearbox of a rail transit subway and adopts splash lubrication.
Referring to fig. 3, a cross-sectional view of an oil distribution ring 500 according to an embodiment of the present application is shown. Referring to fig. 4, a right side view of an oil control ring 500 according to an embodiment of the present application is shown.
The oil-separating ring 500, the outer ring of the first bearing 310 and the outer ring of the second bearing 320 are all circular ring structures. In the circular ring structure, the ring width is equal to the value of the outer circle radius minus the inner circle radius. In the present embodiment, the ring width of the oil distribution ring 500 is smaller than the outer ring width of the first bearing 310, and the ring width of the oil distribution ring 500 is smaller than the outer ring width of the second bearing 320.
The oil-separating ring 500 has an outer ring wall 500c, an inner ring wall 500d, a left end face 500a, and a right end face 500 b. An oil guiding ring groove 511 is formed in the outer ring wall 500c of the oil separating ring 500, the oil guiding ring groove 511 is of a circular ring structure and surrounds the oil separating ring 500 for a circle, a plurality of oil guiding holes 512 are uniformly formed in the outer ring wall 500c of the oil separating ring 500, the oil guiding holes 512 penetrate through the inner ring wall 500d of the oil separating ring 500, and the oil guiding ring groove 511 and the oil guiding holes 512 form an oil path 510. In this embodiment, there are 5 oil guide openings 512 and the openings are arranged in a circumferential array about the axis of the oil distribution ring 500.
The oil guide ring groove 511 is a blind groove and is located at a middle position of the oil distribution ring 500 in the axial direction of the oil distribution ring 500. The oil guide ring groove 511 has a groove width smaller than the axial width of the oil distribution ring 500. Therefore, the oil guide ring groove 511 does not penetrate the left and right end faces 500a and 500b of the oil control ring 500 and the inner ring wall 500d, but penetrates only the outer ring wall 500c of the oil control ring 500. The width of the oil guide ring groove 511 is the width of the oil guide ring groove 511 along the axial direction of the oil distribution ring 500.
The oil guiding opening 512 is a through hole, the depth of the oil guiding opening 512 is equal to the ring width of the oil distribution ring 500, and the aperture of the oil guiding opening 512 is smaller than the axial width of the oil distribution ring 500. The oil guide aperture 512 is located on the right side of the oil control ring 500 in the axial direction of the oil control ring 500, and penetrates the right end surface 500b of the oil control ring 500 and penetrates both the outer ring wall 500c and the inner ring wall 500d of the oil control ring 500.
In an operation process, the lubricant oil first flows into the oil guiding ring groove 511 of the oil separating ring 500 through the oil inlet hole 220 (see fig. 2) of the housing 200, then enters the oil chamber 900 through the oil guiding opening 512, and finally the lubricant oil in the oil chamber 900 flows into the first bearing 310 and the second bearing 320 respectively, so that the first bearing 310 and the second bearing 320 can be lubricated simultaneously.
Referring to fig. 5, a cross-sectional view of an oil distribution ring 500 according to an embodiment of the present application is shown. Referring to fig. 6, a right side view of the oil control ring 500 according to an embodiment of the present application is shown.
The oil guide ring groove 511 is a blind groove and is located at a middle position of the oil distribution ring 500 in the axial direction of the oil distribution ring 500. The oil guide ring groove 511 has a groove width smaller than the axial width of the oil distribution ring 500. Therefore, the oil guide ring groove 511 does not penetrate the left and right end faces 500a and 500b of the oil control ring 500 and the inner ring wall 500d, but penetrates only the outer ring wall 500c of the oil control ring 500.
The oil guiding apertures 512 are through holes, the depth of the oil guiding apertures 512 is equal to the width of the oil separating ring 500, the diameter of the oil guiding apertures 512 is smaller than the axial width of the oil separating ring 500, and the oil guiding apertures 512 are located at the middle position of the oil separating ring 500 along the axial direction of the oil separating ring 500, so that the oil guiding apertures 512 do not penetrate through the left end face 500a and the right end face 500b of the oil separating ring 500, and penetrate through the outer ring wall 500c and the inner ring wall 500d of the oil separating ring 500. The aperture of the oil guiding opening 512 is greater than or equal to the groove width of the oil guiding ring groove 511.
In an operation process, the lubricant oil first flows into the oil guiding ring groove 511 of the oil separating ring 500 through the oil inlet hole 220 (see fig. 2) of the housing 200, then enters the oil chamber 900 through the oil guiding opening 512, and finally the lubricant oil in the oil chamber 900 flows into the first bearing 310 and the second bearing 320 respectively, so that the first bearing 310 and the second bearing 320 can be lubricated simultaneously.
Referring to fig. 7, a cross-sectional view of an oil distribution ring 500 according to an embodiment of the present application is shown. Referring to fig. 8, a right side view of an oil control ring 500 according to an embodiment of the present application is shown.
The oil guide ring groove 511 is a blind groove, is located on the right side of the oil distribution ring 500 in the axial direction of the oil distribution ring 500, and penetrates the right end surface 500b of the oil distribution ring 500. The oil guide ring groove 511 has a groove width smaller than the axial width of the oil distribution ring 500. The oil guide ring groove 511 does not penetrate the left end surface 500a and the inner ring wall 500d of the oil control ring 500, but penetrates the right end surface 500b and the outer ring wall 500c of the oil control ring 500.
The oil guiding opening 512 is a through hole, the depth of the oil guiding opening 512 is equal to the ring width of the oil distribution ring 500, and the aperture of the oil guiding opening 512 is smaller than the axial width of the oil distribution ring 500. The oil deflection aperture 512 is located at a right side position of the oil control ring 500 in the axial direction of the oil control ring 500, and the oil deflection aperture 512 penetrates the right end face 500b of the oil control ring 500 and penetrates both the outer ring wall 500c and the inner ring wall 500d of the oil control ring 500.
In an operation process, the lubricant oil first flows into the oil guiding ring groove 511 of the oil separating ring 500 through the oil inlet hole 220 (see fig. 2) of the housing 200, then enters the oil chamber 900 through the oil guiding opening 512, and finally the lubricant oil in the oil chamber 900 flows into the first bearing 310 and the second bearing 320 respectively, so that the first bearing 310 and the second bearing 320 can be lubricated simultaneously.
Referring to fig. 9, a sectional view of an oil distributing structure 100 of a gearbox according to an embodiment of the present application is shown. The oil distribution structure 100 of the gearbox comprises a gear 610, a shaft pressing plate 620 and a blank cap 800, wherein the blank cap 800 is covered on the bearing hole 210 and abuts against the outer ring of the first bearing 310 for axially positioning the first bearing 310. The shaft pressing plate 620 is disposed at an end of the rotating shaft 600 and is located inside the blank cap 800. The gear 610 is disposed on the rotating shaft 600, and the gear 610 may be integrally formed with the rotating shaft 600 or may be fixed by a key connection or the like.
Referring to fig. 10, a sectional view of an oil distributing structure 100 of a gearbox according to an embodiment of the present application is shown. The oil distribution structure 100 of the gearbox comprises an oil protection ring 700 and a third bearing 330, wherein the third bearing 330 is installed on the housing 200 and sleeved outside the rotating shaft 600. Two oil protection rings 700 are provided, and are respectively sleeved on the rotating shaft 600, wherein one oil protection ring 700 is located between the gear 610 and the second bearing 320, and the other oil protection ring 700 is located between the gear 610 and the third bearing 330. The third bearing 330 may be a cylindrical roller bearing.
The two oil protection rings 700 installed at both sides of the gear 610 can prevent the high-temperature lubricant oil agitated and engaged by the gear 610 from directly entering the first bearing 310, the second bearing 320 or the third bearing 330, and affecting the service life of the first bearing 310, the second bearing 320 or the third bearing 330.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An oil distributing structure of a gear box, comprising:
the box shell is provided with a bearing hole and an oil inlet hole communicated with the bearing hole;
the first bearing and the second bearing are arranged in the bearing hole, and the first bearing and the second bearing are arranged at intervals to form an oil cavity; and
the oil separating ring is clamped between the first bearing and the second bearing and is abutted against the outer ring of the first bearing and the outer ring of the second bearing;
and the oil distribution ring is provided with an oil way which communicates the oil inlet with the oil cavity.
2. The oil distribution structure of the gearbox according to claim 1, wherein an oil guide ring groove is formed in the outer ring wall of the oil distribution ring, and the oil guide ring groove is arranged around the oil distribution ring for one circle;
the outer ring wall of the oil distribution ring is provided with a plurality of oil guide openings, and the oil guide openings penetrate through the inner ring wall of the oil distribution ring;
wherein, lead the oil ring groove with lead the oil trompil and form the oil circuit.
3. The oil distribution structure of a gear case according to claim 2, wherein said oil guide opening penetrates an end face of said oil distribution ring.
4. The oil distribution structure of a gear case according to claim 2, wherein said oil guide ring groove penetrates an end face of said oil distribution ring.
5. The oil distribution structure of the gear box according to claim 2, wherein the hole diameter of the oil guide opening is greater than or equal to the groove width of the oil guide ring groove.
6. The oil distribution structure of a gearbox according to claim 2, wherein a plurality of said oil guide apertures are distributed in a circumferential array around the axis of said oil distribution ring.
7. The oil distributing structure of a gearbox according to any one of claims 1 to 6, wherein a ring width of the oil distributing ring is smaller than an outer ring width of the first bearing, and a ring width of the oil distributing ring is smaller than an outer ring width of the second bearing.
8. The oil distribution structure of a gearbox according to claim 7, wherein an outer ring wall of said oil distribution ring is in contact with an inner wall of said bearing hole.
9. The oil distributing structure of a gear box according to claim 1, comprising:
the distance ring is clamped between the first bearing and the second bearing and is abutted against the inner ring of the first bearing and the inner ring of the second bearing;
wherein the distance ring, the oil-separating ring, the first bearing and the second bearing enclose the oil chamber.
10. The oil distributing structure of the gear box according to claim 8, comprising:
the first bearing and the second bearing are sleeved on the rotating shaft; and
and the blank cap is arranged in the bearing hole and is abutted against the outer ring of the first bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922326194.5U CN211398526U (en) | 2019-12-20 | 2019-12-20 | Oil distribution structure of gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922326194.5U CN211398526U (en) | 2019-12-20 | 2019-12-20 | Oil distribution structure of gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398526U true CN211398526U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922326194.5U Active CN211398526U (en) | 2019-12-20 | 2019-12-20 | Oil distribution structure of gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398526U (en) |
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2019
- 2019-12-20 CN CN201922326194.5U patent/CN211398526U/en active Active
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