CN208294953U - Modified oil sealing bushing - Google Patents
Modified oil sealing bushing Download PDFInfo
- Publication number
- CN208294953U CN208294953U CN201820960735.2U CN201820960735U CN208294953U CN 208294953 U CN208294953 U CN 208294953U CN 201820960735 U CN201820960735 U CN 201820960735U CN 208294953 U CN208294953 U CN 208294953U
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- Prior art keywords
- bushing
- oil sealing
- external
- modified oil
- neck bush
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Abstract
The utility model discloses a kind of modified oil sealing bushings.The modified oil sealing bushing includes neck bush and external bushing, and neck bush inner wall is bonded with shaft outer circumference surface, and outer wall is provided with external screw thread, and be threadedly coupled with external bushing formation；External bushing top periphery is evenly equipped with multiple internal thread holes, and is locked by screw.Using the utility model by the fixed form of improvement oil sealing, keep the locking of oil sealing more firm, without the trend relative to sliding, rotation between bushing and axis.
Description
Technical field
The utility model relates to sealing device fields, more particularly to a kind of modified oil sealing bushing.
Background technique
In the prior art, oil sealing is that (oil is the most common liquid substance in transmission system, is also referred to general for oil sealing
Liquid substance meaning) mechanical organ, it by the component for needing to lubricate in transmission parts with power output component be isolated, be unlikely to allow
Oil seepage generally includes static seal and dynamic sealing.There is lubricating oil in all operating body casees and be communicated with the outside and connects
Position require oil sealing.Some are rubber, some are metals, and majority is reinforcing bar rubber, such as crankshaft rear oil seal, speed change
Case front and rear oil seals, left and right axle-shaft oil seal, main reducing gear Front oil seal, air compressor crank oil sealing etc..
In industrial design, the design to oil sealing bushing is originally to play to protect axis as the victim in rotatable parts, hair
When raw abrasion, replacement can be convenient.If not having to bushing, after abrasion, replacement is part, and what is replaced now is bushing (design
When, just bushing hardness is reduced, becomes it in friction pair and holds mill part), because its is easy to process, replacement cost is low, also easily changes.
But in the case where designing or assembling jejune situation, probably due to self-defect and deficiency lead to equipment, there are security risks.Simultaneously
Be also possible to can have following technical problem: often there is oil leak, has the phenomenon that abnormal sound in operating status in unit.By to unit
Disintegration overhaul discovery, oil sealing bushing and oil sealing have polishing scratch, and through judging, hidden trouble of equipment is too loose from oil sealing bushing and axis cooperation,
Cause oil sealing bushing on axis relative to sliding or rotating, oil sealing bushing radially collides with axis, oil sealing and generated.This phenomenon is tight
The safe operation for influencing equipment again directly results in the possibility of unplanned parking, it will causes certain economic loss, while right
Environmental protection also has serious harm.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of modified oil sealing bushing, by improving consolidating for oil sealing
Determine mode, keeps the locking of oil sealing more firm, without the trend relative to sliding, rotation between bushing and axis.
To solve above-mentioned technical purpose, the technical solution adopted in the utility model is as follows:
Modified oil sealing bushing, it is characterised in that: including neck bush and external bushing, neck bush inner wall and shaft outer circumference surface
Fitting, and outer wall is provided with external screw thread, and be threadedly coupled with external bushing formation；External bushing top periphery is evenly equipped with more
A internal thread hole, and locked by screw.
Further, the screw is the soket head cap screw by modifier treatment.
Further, the internal thread hole is three, it is each between be separated by 120 °.
Further, the neck bush and external bushing junction are additionally provided with sealing plain cushion.
Further, the sealing plain cushion is polyvinyl chloride washer.
Further, the external bushing and neck bush select 304 stainless steels.
The beneficial effects of the utility model are: be in contrast to the prior art, firstly, the utility model structure is simple,
It is very easy to promote, after oil sealing bushing is locked in shaft, bushing and axis are without the trend relative to sliding, rotation；Fixed oil
Envelope bushing will not cause the harm such as friction, abrasion, fever to shaft.
Detailed description of the invention
Fig. 1 is modified oil sealing bush structure schematic diagram provided by the utility model.
Fig. 2 is modified oil sealing bushing schematic top plan view provided by the utility model.
Marked in the figure: 1 being external bushing, 2 being neck bush, 3 be internal thread hole, 4 being soket head cap screw.
Specific embodiment
The utility model is described further with specific embodiment with reference to the accompanying drawing.
As Figure 1-Figure 2, modified oil sealing bushing, including neck bush 2 and external bushing 1, the external bushing 1 and neck bush
2 select 304 stainless steels.
2 inner wall of neck bush is bonded with shaft outer circumference surface, and outer wall is provided with external screw thread, and form spiral shell with external bushing 1
Line connection；The neck bush 2 is additionally provided with sealing plain cushion with 1 junction of external bushing.The sealing plain cushion is polyvinyl chloride washer.
The 1 top periphery of external bushing is evenly equipped with multiple internal thread holes 3, and is fixed by screws in shaft.It is described
Screw is the soket head cap screw 4 by modifier treatment.The internal thread hole 3 is preferably three, it is each between be separated by 120 °.When
So, it is also not limited to be also possible to four or even more internal thread holes 3 according to actual needs using three internal thread holes 3,
These internal thread holes 3 are all made of equally spaced angle, and equally spaced angle keeps the clamping force between external bushing 1 and shaft equal
Weighing apparatus, avoids certain face unbalance stress from causing a hidden trouble.
In actual use, the application first places polyvinyl chloride washer in the corresponding slot of external bushing 1, then accesses from port
Neck bush 2, and by rotation neck bush 2, it engages the screw thread between interior external bushing 1 and forms firm connection type.Exist again
Lubricating grease is smeared on the inner wall of neck bush 2, and entire bushing is connect with shaft.Finally, tighten soket head cap screw 4 respectively again,
In rundown process, needs to accomplish equilibrium treatment, i.e., each soket head cap screw 4 is first screwed into 2/3rds, finally twisted respectively again
To fastening.
After oil sealing bushing is locked in shaft, bushing and axis are without the trend relative to sliding, rotation；Fixed oil sealing bushing
The harm such as friction, abrasion, fever will not be caused to shaft；Because hidden trouble of equipment caused by problems is by since driving after improved
Primary no longer generations till now in every 3 months；Potential substantial equipment hidden danger is completely eliminated, it is unplanned to prevent unit generation
Parking and Environmental Safety accident, the long-term operation of equipment efficiently provide powerful guarantee to production.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by utility model specification and accompanying drawing content, it is applied directly or indirectly in it
His relevant technical field, is also included in the patent protection scope of the utility model.
Claims (6)
1. modified oil sealing bushing, it is characterised in that: including neck bush and external bushing, neck bush inner wall and shaft excircle face paste
It closes, and outer wall is provided with external screw thread, and be threadedly coupled with external bushing formation；External bushing top periphery is evenly equipped with multiple
Internal thread hole, and locked by screw.
2. modified oil sealing bushing according to claim 1, it is characterised in that: the screw is by the interior of modifier treatment
Hex screw.
3. modified oil sealing bushing according to claim 1, it is characterised in that: the internal thread hole is three, it is each it
Between be separated by 120 °.
4. modified oil sealing bushing according to claim 1, it is characterised in that: the neck bush and external bushing junction are also
It is provided with sealing plain cushion.
5. modified oil sealing bushing according to claim 4, it is characterised in that: the sealing plain cushion is polyvinyl chloride pad
Circle.
6. modified oil sealing bushing according to claim 1, it is characterised in that: the external bushing and neck bush are selected
304 stainless steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820960735.2U CN208294953U (en) | 2018-06-21 | 2018-06-21 | Modified oil sealing bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820960735.2U CN208294953U (en) | 2018-06-21 | 2018-06-21 | Modified oil sealing bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294953U true CN208294953U (en) | 2018-12-28 |
Family
ID=64700691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820960735.2U Active CN208294953U (en) | 2018-06-21 | 2018-06-21 | Modified oil sealing bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124069A (en) * | 2020-09-22 | 2020-12-25 | 东风汽车底盘系统有限公司 | Intermediate support aluminum alloy transmission shaft for medium and heavy commercial vehicle |
-
2018
- 2018-06-21 CN CN201820960735.2U patent/CN208294953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124069A (en) * | 2020-09-22 | 2020-12-25 | 东风汽车底盘系统有限公司 | Intermediate support aluminum alloy transmission shaft for medium and heavy commercial vehicle |
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