CN213511981U - Double-oil-seal oil leakage prevention device of speed reducer - Google Patents
Double-oil-seal oil leakage prevention device of speed reducer Download PDFInfo
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- CN213511981U CN213511981U CN202121001051.8U CN202121001051U CN213511981U CN 213511981 U CN213511981 U CN 213511981U CN 202121001051 U CN202121001051 U CN 202121001051U CN 213511981 U CN213511981 U CN 213511981U
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- adjusting nut
- oil
- bearing
- speed reducer
- oil blanket
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Abstract
The utility model relates to a speed reducer technical field especially relates to a two oil blanket leak protection oil device of speed reducer, including box, bearing and output shaft, pass through and be equipped with adjusting nut between lid and the bearing, adjusting nut threaded connection is on the box, and adjusting nut is close to bearing one side and is equipped with the boss, and the outer lane in close contact with of boss and bearing, adjusting nut and pass through to cover and be equipped with first recess and second recess relatively, are equipped with first oil blanket and second oil blanket in first recess and the second recess, pass through to be gapped between lid and the adjusting nut. The utility model discloses an install first oil blanket and second oil blanket respectively on adjusting nut and pass through the cover, reduced the oil blanket installation degree of difficulty, reduced the defect that the installation produced, in addition, there is the clearance between passing through the cover and the adjusting nut, and adjusting nut bears all radial forces that the bearing produced, and passes through the cover and need not to bear radial force, reduces the vibration influence that the second oil blanket received by a wide margin, makes the difficult inefficacy of second oil blanket, reduces the oil leak risk, has improved sealed effect.
Description
Technical Field
The utility model relates to a speed reducer technical field especially relates to a two oil blanket leak protection oil device of speed reducer.
Background
When the speed reducer is used, the lubricating oil is added too much, and the oil level is too high, so that leakage is caused. Meanwhile, the oil seal at the oil position of the speed reducer is easy to lose efficacy due to factors such as use environment, external force and the like, so that leakage is caused.
In the prior art, as shown in fig. 1, an oil leakage prevention device of a speed reducer generally adopts double-oil-seal sealing, wherein double oil seals are installed on an oil seal seat, and then the oil seal seat is installed on a box body, and oil leakage prevention is realized by virtue of the performance of oil seal sealing.
However, the double oil seals are arranged on the oil seal seat, the oil seal is difficult to install, the oil seal seat is influenced by axial force and vibration in the working process of the speed reducer, the requirement on the concentricity of the oil seal seat is high, and after one oil seal fails, the two oil seals fail together very quickly, so that oil leakage of the speed reducer is caused, and the sealing effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a two oil blanket leak protection oil device of speed reducer reduces the oil blanket installation degree of difficulty, reduces the vibration influence that the oil blanket received, reduces the oil leak risk, improves sealed effect.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a two oil blanket leak protection oil device of speed reducer, includes: the bearing is provided with a transparent cover facing the outer side of the box body, and the transparent cover is sleeved on the outer side of the output shaft and fixedly connected with the box body; pass through the lid with be equipped with adjusting nut between the bearing, adjusting nut threaded connection is in on the box, adjusting nut is close to bearing one side is equipped with the boss, the boss with the outer lane in close contact with of bearing, adjusting nut with pass through the lid and be equipped with first recess and second recess relatively, first recess with be equipped with first oil blanket and second oil blanket in the second recess, pass through the lid with it is gapped between the adjusting nut.
Furthermore, the adjusting nut is close to through cover one side is equipped with 4 screw holes, and 4 the screw hole symmetry sets up.
Furthermore, the threaded part of the adjusting nut and the box body is coated with thread glue.
Furthermore, be equipped with first logical groove and second on the adjusting nut excircle and lead to the groove, first logical groove with second leads to groove parallel arrangement, and perpendicular adjusting nut's axis.
Furthermore, a locking sheet is arranged between the first through groove and the second through groove.
Furthermore, the adjusting nut is provided with a braking hole on the same side of the threaded hole, the braking hole is abutted against the locking sheet through a screwed-in screw, and the locking sheet deforms in the axial direction.
Furthermore, a spigot is arranged on one side, close to the box body, of the transparent cover, a second mounting hole is formed in one end, close to the transparent cover, of the box body, and the spigot is embedded into the second mounting hole.
Further, be equipped with the hole on the tang, adjusting nut is close to pass through lid one end and be equipped with the step axle, step axle diameter is less than hole diameter, just hole step face with there is the clearance step axle terminal surface in the axial.
The utility model has the advantages that: the utility model discloses an install first oil blanket and second oil blanket respectively on adjusting nut and pass through the cover, reduced the oil blanket installation degree of difficulty, reduced the defect that the installation produced, in addition, there is the clearance between passing through the cover and the adjusting nut, and adjusting nut bears all radial forces that the bearing produced, and passes through the cover and need not to bear radial force, reduces the vibration influence that the second oil blanket received by a wide margin, makes the difficult inefficacy of second oil blanket, reduces the oil leak risk, has improved sealed effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oil leakage preventing device of a speed reducer in the background art;
fig. 2 is a schematic structural view of the double-oil-seal oil leakage preventing device of the speed reducer of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic structural view of the adjusting nut of the present invention;
FIG. 5 is a view from the direction B of FIG. 4;
FIG. 6 is a cross-sectional view C-C of FIG. 5;
FIG. 7 is an enlarged view of a portion of FIG. 6 at D;
fig. 8 is a cross-sectional view of the transparent cover of the present invention.
Reference numerals: 1. a box body; 2. a bearing; 3. an output shaft; 4. a transparent cover; 41. a second groove; 42. a second oil seal; 43. stopping the opening; 44. an inner bore; 5. adjusting the nut; 51. a boss; 52. a first groove; 53. a first oil seal; 54. a threaded hole; 55. a first through groove; 56. a second through groove; 57. a locking piece; 58. a brake hole; 59. a step shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 2 to 8, the double-oil-seal oil leakage preventing device of the speed reducer comprises a box body 1, a bearing 2 and an output shaft 3, wherein a first mounting hole is formed in the box body 1, an outer ring of the bearing 2 is embedded into the first mounting hole, the output shaft 3 is rotatably connected with the bearing 2, a transparent cover 4 is arranged on the outer side of the bearing 2 facing the box body 1, and the transparent cover 4 is sleeved on the outer side of the output shaft 3 and is fixedly connected with the box body 1; be equipped with adjusting nut 5 between passing through lid 4 and bearing 2, adjusting nut 5 threaded connection is on box 1, and adjusting nut 5 is close to bearing 2 one side and is equipped with boss 51, boss 51 and bearing 2's outer lane in close contact with, and adjusting nut 5 is equipped with first recess 52 and second recess 41 with passing through lid 4 relatively, is equipped with first oil blanket 53 and second oil blanket 42 in first recess 52 and the second recess 41, passes through and is gapped between lid 4 and the adjusting nut 5. It should be noted that the first mounting hole is divided into two connecting portions, one is a through hole matched with the bearing 2, and the other is an internal thread matched with the adjusting nut 5, and it is required to ensure that the diameter of the through hole is larger than the diameter of the small diameter of the internal thread, that is, the small diameter is the diameter value of the internal thread closest to the axis center. On the basis of screw-thread fit, the arrangement of the boss 51 is added, the bearing 2 is prevented from moving in the axial direction, the transmission reliability is improved, and the openings of the first groove 52 and the second groove 41 are opposite, so that the oil seal installation is facilitated. The first oil seal 53 is arranged on the adjusting nut 5, meets the requirement of concentricity with the box body 1 through threads, and bears all radial forces generated by the bearing 2; second oil blanket 42 installs on passing through lid 4, passes through lid 4 and adjusting nut 5 has the clearance, makes second oil blanket 42 not bear radial force, can not receive the influence of bearing 2 vibration, and two oil blanket are installed on the part of difference, even a part machining precision can not reach the requirement, still another oil blanket plays leak protection oil effect, has improved sealed effect.
The utility model discloses preferred implementation process, at first pack into bearing 2 and output shaft 3 in the mounting hole of box 1, secondly the interior screw-thread fit in 5 external screw threads of adjusting nut and the first mounting hole, in 5 screw in first mounting holes of adjusting nut, when the boss 51 of adjusting nut 5 supported the inner circle of bearing 2, pack first oil blanket 53 into first recess 52 again, before the installation is covered 4 thoroughly, install second oil blanket 42 in second recess 41 earlier, will cover 4 thoroughly at last and pass through the bolt fastening on box 1. The utility model discloses an install first oil blanket 53 and second oil blanket 42 respectively on adjusting nut 5 with pass through to cover 4, the oil blanket installation degree of difficulty has been reduced, the defect that the installation produced has been reduced, in addition, there is the clearance between passing through to cover 4 and adjusting nut 5, adjusting nut 5 bears all radial forces that bearing 2 produced, and pass through to cover 4 and need not to bear radial force, the vibration that reduces second oil blanket 42 by a wide margin and receive influences, make second oil blanket 42 difficult inefficacy, reduce the oil leak risk, sealing effect has been improved.
Because the adjusting nut 5 is screwed into the first mounting hole completely, in order to facilitate the installation and the disassembly of the adjusting nut 5, one side of the adjusting nut 5, which is close to the transparent cover 4, is provided with 4 threaded holes 54, and the 4 threaded holes 54 are symmetrically arranged. 4 threaded holes 54 are mounting process holes, and assembly efficiency is improved.
The utility model discloses in the preferred embodiment, adjusting nut 5 scribbles the screw thread with 1 spiro union department of box and glues, when adjusting nut 5 bears the axial force, avoids adjusting nut 5 to produce smooth silk phenomenon, also plays certain sealed effect when guaranteeing 5 fixed positions of adjusting nut.
The thread gluing is acted on and is lost efficacy easily for a long time, make adjusting nut 5 produce axial displacement, make adjusting nut 5 and pass through lid 4 and produce the contact to make pass through lid 4 also bear axial force and vibration, lead to first oil blanket 53 and second oil blanket 42 to lose efficacy simultaneously, in order to avoid this phenomenon to take place, be equipped with first logical groove 55 and second logical groove 56 on adjusting nut 5 excircle, first logical groove 55 and second logical groove 56 parallel arrangement, and perpendicular adjusting nut 5's axis. A locking piece 57 is arranged between the first through groove 55 and the second through groove 56. Through cutting out first through groove 55 and second through groove 56 on adjusting nut 5, be the stay 57 between first through groove 55 and the second through groove 56, stay 57 produces the deformation in adjusting nut 5 screws up the in-process, and stay 57 after the deformation blocks with the internal thread of first mounting hole, makes adjusting nut 5 difficult smooth silk.
On the basis of the above embodiment, the adjusting nut 5 is provided with the braking hole 58 on the same side as the threaded hole 54, the braking hole 58 abuts against the locking piece 57 by screwing in the screw, and the locking piece 57 is deformed in the axial direction. The reliability of the locking of the adjusting nut 5 is increased by the arrangement of the braking hole 58.
The utility model discloses in the preferred embodiment, through lid 4 is close to box 1 one side and is equipped with tang 43, and box 1 is close to through lid 4 one end and is equipped with the second mounting hole, and tang 43 imbeds the second mounting hole. The second oil seal 42 is arranged on the transparent cover 4, the concentric requirement is realized through the spigot 43 of the transparent cover 4 and the box body 1, the radial force is not born, the second oil seal 42 cannot be influenced by the vibration of the bearing 2, and the sealing effect is improved.
On the basis of the above embodiment, the spigot 43 is provided with the inner hole 44, one end of the adjusting nut 5 close to the through cover 4 is provided with the step shaft 59, the diameter of the step shaft 59 is smaller than that of the inner hole 44, and a gap exists between the step surface of the inner hole 44 and the end surface of the step shaft 59 in the axial direction. The clearance design between adjusting nut 5 and the transparent cover 4, after first oil blanket 53 became invalid, the oil that leaks out from box 1 can fill adjusting nut 5 and the clearance of transparent cover 4 in, just can cause the influence to second oil blanket 42 after filling up the clearance, has prolonged the time that produces the oil leak.
The utility model discloses preferred implementation process, at first pack into bearing 2 and output shaft 3 in the mounting hole of box 1, secondly the interior screw-in fit department of 5 external screw threads of adjusting nut and first mounting hole scribbles the thread glue, then in the first mounting hole of 5 screw in of adjusting nut, when the boss 51 of adjusting nut 5 supported the inner circle of bearing 2, with screw in braking hole 58, it is fixed to make adjusting nut 5, pack into first recess 52 with first oil blanket 53 again, before the lid 4 is passed through in the installation, install second oil blanket 42 in the second recess 41 earlier, will pass through the bolt fastening on box 1 at last, after the installation is accomplished, guarantee that adjusting nut 5 and pass through between the lid 4 all have the clearance in axial and footpath. The utility model discloses an install first oil blanket 53 and second oil blanket 42 respectively on adjusting nut 5 with pass through to cover 4, the oil blanket installation degree of difficulty has been reduced, the defect that the installation produced has been reduced, in addition, there is the clearance between passing through to cover 4 and adjusting nut 5, adjusting nut 5 bears all radial forces that bearing 2 produced, and pass through to cover 4 and need not to bear radial force, the vibration that reduces second oil blanket 42 by a wide margin and receive influences, make second oil blanket 42 difficult inefficacy, reduce the oil leak risk, sealing effect has been improved.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A double-oil-seal oil leakage prevention device of a speed reducer comprises a box body (1), a bearing (2) and an output shaft (3), wherein a first mounting hole is formed in the box body (1), the outer ring of the bearing (2) is embedded into the first mounting hole, the output shaft (3) is rotatably connected with the bearing (2), a transparent cover (4) is arranged on the bearing (2) towards the outer side of the box body (1), and the transparent cover (4) is sleeved on the outer side of the output shaft (3) and is fixedly connected with the box body (1);
pass through lid (4) with be equipped with adjusting nut (5) between bearing (2), adjusting nut (5) threaded connection be in on box (1), adjusting nut (5) are close to bearing (2) one side is equipped with boss (51), boss (51) with the outer lane in close contact with of bearing (2), adjusting nut (5) with pass through lid (4) and be equipped with first recess (52) and second recess (41) relatively, first recess (52) with be equipped with first oil blanket (53) and second oil blanket (42) in second recess (41), pass through lid (4) with it is gapped between adjusting nut (5).
2. The double-oil-seal oil leakage prevention device of the speed reducer according to claim 1, wherein 4 threaded holes (54) are formed in one side, close to the transparent cover (4), of the adjusting nut (5), and the 4 threaded holes (54) are symmetrically arranged.
3. The double-oil-seal oil leakage prevention device of the speed reducer according to claim 2, wherein a threaded glue is coated at a threaded part of the adjusting nut (5) and the box body (1).
4. The double-oil-seal oil leakage prevention device of the speed reducer according to claim 3, wherein a first through groove (55) and a second through groove (56) are formed in an outer circle of the adjusting nut (5), and the first through groove (55) and the second through groove (56) are arranged in parallel and perpendicular to an axis of the adjusting nut (5).
5. The double-oil-seal oil leakage prevention device of the speed reducer according to claim 4, wherein a locking sheet (57) is arranged between the first through groove (55) and the second through groove (56).
6. The double-oil-seal oil leakage prevention device of the speed reducer as claimed in claim 5, wherein the adjusting nut (5) is provided with a braking hole (58) on the same side as the threaded hole (54), the braking hole (58) abuts against the locking sheet (57) by screwing a screw, and the locking sheet (57) is deformed in the axial direction.
7. The double-oil-seal oil leakage prevention device of the speed reducer according to claim 1, wherein a spigot (43) is arranged on one side of the transparent cover (4) close to the box body (1), a second mounting hole is arranged at one end of the box body (1) close to the transparent cover (4), and the spigot (43) is embedded in the second mounting hole.
8. The double-oil-seal oil leakage preventing device of the speed reducer according to claim 7, wherein an inner hole (44) is formed in the spigot (43), a step shaft (59) is arranged at one end, close to the transparent cover (4), of the adjusting nut (5), the diameter of the step shaft (59) is smaller than that of the inner hole (44), and a gap exists between the step surface of the inner hole (44) and the end surface of the step shaft (59) in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121001051.8U CN213511981U (en) | 2021-05-12 | 2021-05-12 | Double-oil-seal oil leakage prevention device of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121001051.8U CN213511981U (en) | 2021-05-12 | 2021-05-12 | Double-oil-seal oil leakage prevention device of speed reducer |
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| CN213511981U true CN213511981U (en) | 2021-06-22 |
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| CN202121001051.8U Active CN213511981U (en) | 2021-05-12 | 2021-05-12 | Double-oil-seal oil leakage prevention device of speed reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856271A (en) * | 2021-11-03 | 2021-12-31 | 华能上海燃机发电有限责任公司 | Speed reducer base sealing structure of secondary filter screen |
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2021
- 2021-05-12 CN CN202121001051.8U patent/CN213511981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856271A (en) * | 2021-11-03 | 2021-12-31 | 华能上海燃机发电有限责任公司 | Speed reducer base sealing structure of secondary filter screen |
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