CN220488138U - Input shaft sealing anti-leakage structure - Google Patents
Input shaft sealing anti-leakage structure Download PDFInfo
- Publication number
- CN220488138U CN220488138U CN202322129201.9U CN202322129201U CN220488138U CN 220488138 U CN220488138 U CN 220488138U CN 202322129201 U CN202322129201 U CN 202322129201U CN 220488138 U CN220488138 U CN 220488138U
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- Prior art keywords
- oil
- input shaft
- end cover
- box body
- welding box
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- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000002265 prevention Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 105
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses an input shaft sealing and leakage preventing structure, which comprises an input shaft body, wherein a connecting flange is arranged at one end of the input shaft body, a shaft end pressing plate is arranged at the right end of the input shaft, and the shaft end pressing plate axially presses the input shaft and the connecting flange; according to the input shaft sealing leakage-proof structure, the oil inlet of the welding box body enters the oil groove to forcedly lubricate the bearing, so that the lubrication and cooling effects of the bearing can be ensured, and the service life of the bearing is ensured; the sealing shaft sleeve is arranged between the oil seal and the input shaft, so that the sealing effect can be ensured, the bearing block is protected, and the replaceable maintenance is realized; according to the connecting flange and the input shaft, the two ends are arranged in a double-centering mode and are tightly pressed, so that the connecting flange can be prevented from shaking during working, spline abrasion is reduced, and the service life is prolonged; through setting up oil collecting groove and oil return opening outside the oil blanket, can avoid lubricating oil to flow outside the box when in case the oil blanket damages.
Description
Technical Field
The utility model relates to the technical field of input shaft sealing leakage prevention, in particular to an input shaft sealing leakage prevention structure.
Background
Currently, leakage of lubricating oil at existing input shafts is prone to occur for the following reasons: 1. the spline of the connecting flange is seriously worn, and the transmission is axially carried out; 2. the input shaft oil seal is worn; 3. the oil leakage at the input shaft is easy to be caused due to the serious oil accumulation at the lip of the oil seal and other problems;
although the prior art adopts the following technology for preventing oil leakage at the input shaft: 1. spraying lubrication, and poor lubrication and cooling effects; 2. forced lubrication is carried out on the oil hole of the outer ring of the bearing, so that oil accumulation at the lip of the oil seal is serious, and oil leakage is easy to cause; 3. the oil seal is directly contacted with the shaft oil seal gear, and the bearing gear is seriously worn after long-time use, so that oil leakage or shaft scrapping is caused; 4. the connecting flange is only in spline connection, and the shaft and the connecting flange are scrapped due to serious abrasion of the spline after long-time use. To this end, we propose an input shaft seal leakage prevention structure.
Disclosure of Invention
The utility model aims to provide an input shaft sealing leakage-proof structure for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the input shaft sealing and leakage preventing structure comprises an input shaft body, wherein a connecting flange is arranged at one end of the input shaft body, a shaft end pressing plate is arranged at the right end of the input shaft, and the shaft end pressing plate axially presses the input shaft and the connecting flange;
the outer side of the input shaft is provided with a sealed oil return mechanism, and the outer side of the sealed oil return mechanism is provided with a first end cover;
the first end cover is fixedly connected with the connecting flange, and the first end cover is provided with an oil collecting mechanism outside the sealed oil return mechanism;
a welding box body is arranged on the left side of the first end cover, and two self-aligning roller bearings with oil holes are rotationally connected between the welding box body and the input shaft;
the left end of the input shaft is provided with a second end cover which is fixed with the welding box body;
an injection mechanism is arranged between the welding box body and the two self-aligning roller bearings with the oil holes.
Preferably, the sealed oil return mechanism comprises an oil seal arranged on the inner side of the end cover, and a sealed shaft sleeve is arranged between the oil seal and the input shaft.
Preferably, the oil collecting mechanism comprises an oil collecting groove arranged on the inner side of the end cover, the oil collecting groove is located on the outer side of one end of the oil seal, and an oil return opening is arranged below the oil collecting groove on the end cover, so that the function of collecting redundant lubricating oil is achieved.
Preferably, the injection mechanism comprises two oil inlet holes arranged on the welding box body, and the positions of the oil inlet holes are communicated to bearing hole oil grooves of the self-aligning roller bearing with the oil holes;
an oil return pipe is arranged at one side of the bottom of the welding box body, and the top of the oil return pipe is communicated with an oil return port;
the bottom of the welding box body is an oil collecting box, and an oil return hole communicated with the first end cover is formed in the welding box body, so that lubricating oil can enter the injection mechanism conveniently.
Preferably, a radial and axial gap is arranged between the first end cover and the connecting flange, so that impurities can be prevented from entering the oil collecting groove when the connecting method works in a rotating mode.
Preferably, the oil collecting tank is made of transparent materials, so that the oil level in the oil collecting tank can be conveniently observed.
The utility model has at least the following beneficial effects:
according to the utility model, the oil inlet of the welding box body enters the oil groove to forcedly lubricate the bearing, so that the lubrication and cooling effects of the bearing can be ensured, and the service life of the bearing is ensured; the sealing shaft sleeve is arranged between the oil seal and the input shaft, so that the sealing effect can be ensured, the bearing block is protected, and the replaceable maintenance is realized; according to the connecting flange and the input shaft, the two ends are arranged in a double-centering mode and are tightly pressed, so that the connecting flange can be prevented from shaking during working, spline abrasion is reduced, and the service life is prolonged; through setting up oil collecting groove and oil return opening outside the oil blanket, can avoid lubricating oil to flow outside the box when in case the oil blanket damages.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is an enlarged view of the area a in fig. 1 according to the present utility model.
In the figure: 1-an input shaft body; 2-shaft end pressing plates; 3-connecting flanges; 4-sealing the shaft sleeve; 5-oil sealing; 6-end cap I; 61-an oil sump; 62-an oil return port; 7-welding the box body; 71-an oil inlet hole; 72-an oil return pipe; 73-an oil collecting tank; 74-oil return holes; 8-end cap II; 9-aligning roller bearing with oil hole; 10-oil return notch.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution:
the utility model provides an input shaft seals leak protection structure, including input shaft body 1, flange 3 is installed to input shaft body 1's one end, and input shaft body 1's right-hand member is provided with axle head clamp plate 2, and axle head clamp plate 2 compresses tightly input shaft body 1 and flange 3 axially, flange 3 passes through middle spline section transmission moment of torsion with input shaft body 1, and the left end sets up cylinder axle section tight fit centering, and the right-hand member compresses tightly axially through axle head clamp plate 2 to realize radial centering;
the sealing oil return mechanism is arranged on the outer side of the input shaft body 1, the end cover I6 is arranged on the outer side of the sealing oil return mechanism, the sealing oil return mechanism comprises an oil seal 5 arranged on the inner side of the end cover I6, and a sealing shaft sleeve 4 is arranged between the oil seal 5 and the input shaft body 1;
the first end cover 6 is fixedly connected with the connecting flange 3, the outer side of the first end cover 6 is provided with an oil collecting mechanism, the oil collecting mechanism comprises an oil collecting groove 61 arranged on the inner side of the first end cover 6, the oil collecting groove 61 is positioned on the outer side of one end of the oil seal 5, and an oil return port 62 is arranged below the oil collecting groove 61 of the first end cover 6;
a welding box body 7 is arranged on the left side of the first end cover 6, and two oil hole aligning roller bearings 9 are rotationally connected between the welding box body 7 and the input shaft body 1;
the left end of the input shaft body 1 is provided with a second end cover 8, and the second end cover 8 is fixed with the welding box body 7;
an injection mechanism is arranged between the welding box body 7 and the two oil hole aligning roller bearings 9, the injection mechanism comprises two oil inlet holes 71 arranged on the welding box body 7, and the oil inlet holes 71 are communicated to bearing hole oil grooves of the oil hole aligning roller bearings 9;
an oil return pipe 72 is arranged on one side of the bottom of the welding box 7, and the top of the oil return pipe 72 is communicated with the oil return port 62;
the bottom of the welding box body 7 is provided with an oil collecting tank 73, the oil collecting tank 73 is made of transparent materials, so that the oil level in the oil collecting tank 73 can be conveniently watched, and the welding box body 7 is provided with an oil return hole 74 communicated with the end cover I6.
A radial and an axial gap are arranged between the first end cover 6 and the connecting flange 3.
Working principle: during operation, forced lubricating oil enters the oil groove through the oil inlet hole 71 of the welding box body 7, then enters through the oil hole on the outer ring of the self-aligning roller bearing 9 with the oil hole, lubricates the bearing, sets up the oil return notch 10 on the end cover I6 aiming at the input end oil seal 5, ensures the right reasonable height of the oil return notch 10, ensures that the notch of the oil seal 5 has sufficient oil lubrication, when the oil seal 5 leaks, the lubricating oil enters the oil collecting groove 61 through the notch of the oil seal 5, and flows into the box body again through the oil return hole 62 below the oil collecting groove 61, and the gap between the oil collecting groove 61 and the connecting flange 3 can ensure that impurities are prevented from entering the oil collecting groove 61 during the work of rotating a connecting method.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a sealed leak protection structure of input shaft, includes input shaft body (1), flange (3), its characterized in that are installed to one end of input shaft body (1): the right end of the input shaft body (1) is provided with a shaft end pressing plate (2), and the shaft end pressing plate (2) axially presses the input shaft body (1) and the connecting flange (3);
the outer side of the input shaft body (1) is provided with a sealed oil return mechanism, and the outer side of the sealed oil return mechanism is provided with an end cover I (6);
the first end cover (6) is fixedly connected with the connecting flange (3), and the first end cover (6) is provided with an oil collecting mechanism outside the sealed oil return mechanism;
a welding box body (7) is arranged on the left side of the first end cover (6), and two oil hole aligning roller bearings (9) are rotationally connected between the welding box body (7) and the input shaft body (1);
the left end of the input shaft body (1) is provided with a second end cover (8), and the second end cover (8) is fixed with the welding box body (7);
an injection mechanism is arranged between the welding box body (7) and the two oil hole aligning roller bearings (9).
2. An input shaft seal leakage prevention structure as defined in claim 1, wherein: the sealing oil return mechanism comprises an oil seal (5) arranged on the inner side of the first end cover (6), and a sealing shaft sleeve (4) is arranged between the oil seal (5) and the input shaft body (1).
3. An input shaft seal leakage prevention structure as defined in claim 1, wherein: the oil collecting mechanism comprises an oil collecting groove (61) arranged on the inner side of the first end cover (6), the oil collecting groove (61) is located on the outer side of one end of the oil seal (5), and an oil return opening (62) is formed in the lower portion of the first end cover (6) located on the oil collecting groove (61).
4. An input shaft seal leakage prevention structure as defined in claim 1, wherein: the injection mechanism comprises two oil inlet holes (71) arranged on the welding box body (7), and the positions of the oil inlet holes (71) are communicated to bearing hole oil grooves of the self-aligning roller bearing (9) with the oil holes;
an oil return pipe (72) is arranged at one side of the bottom of the welding box body (7), and the top of the oil return pipe (72) is communicated with an oil return port (62);
the bottom of the welding box body (7) is provided with an oil collecting tank (73), and the welding box body (7) is provided with an oil return hole (74) communicated with the first end cover (6).
5. An input shaft seal leakage prevention structure as defined in claim 4, wherein: a radial and axial gap is arranged between the first end cover (6) and the connecting flange (3).
6. An input shaft seal leakage prevention structure as defined in claim 4, wherein: the oil collecting tank (73) is made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129201.9U CN220488138U (en) | 2023-08-09 | 2023-08-09 | Input shaft sealing anti-leakage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129201.9U CN220488138U (en) | 2023-08-09 | 2023-08-09 | Input shaft sealing anti-leakage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220488138U true CN220488138U (en) | 2024-02-13 |
Family
ID=89830708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322129201.9U Active CN220488138U (en) | 2023-08-09 | 2023-08-09 | Input shaft sealing anti-leakage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220488138U (en) |
-
2023
- 2023-08-09 CN CN202322129201.9U patent/CN220488138U/en active Active
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