CN207921296U - A kind of hub reduction gear breather - Google Patents
A kind of hub reduction gear breather Download PDFInfo
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- CN207921296U CN207921296U CN201820372255.4U CN201820372255U CN207921296U CN 207921296 U CN207921296 U CN 207921296U CN 201820372255 U CN201820372255 U CN 201820372255U CN 207921296 U CN207921296 U CN 207921296U
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- spring
- reduction gear
- hole
- hub reduction
- annular
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Abstract
The utility model discloses a kind of hub reduction gear breathers, hull outside lower part is equipped with annular ligament angle, shell is connect by the bonded washer being sheathed on annular ligament angle with hub reduction gear box sealing, enclosure interior is equipped with axial step through-hole, annular sealing strip is equipped on the step of axial step through-hole successively, valve base, spring and spring base, the both ends of wherein spring are fixedly connected with valve base and spring base respectively, valve base is for compressing annular sealing strip to form the sealing of axial step through-hole, spring base is sealingly fastened in by O-ring seal in axial step through-hole, housing sidewall between O-ring seal and annular sealing strip is equipped with the step gas vent tilted down.The utility model simple structure and reasonable design, pressurize pressure release control is accurate and sealing effect is preferable.
Description
Technical field
The utility model belongs to Micropressure safety valve technical field, and in particular to a kind of hub reduction gear breather.
Background technology
Hub reduction gear is in certain industries, such as the dusty of coal and cement, the height of water conservancy headstock gear and environmentally friendly aerator
In application, its air breather will not only have ventilative decompression function in wet gas environments, also there is dust-proof, moistureproof.And it is current
The either porous plug or ventilating cover generally used on hub reduction gear can only all play ventilative decompression function, maintain wheel side
Pressure and external atmosphere pressure dynamic balance in reduction case, but hub reduction gear cannot be solved when out of service, extraneous is micro-
Small dust and moisture are entered by their gas-permeable channels in hub reduction gear babinet, and lubricating oil in hub reduction gear babinet is caused
The problem of being contaminated and Moisture in Lube Oil ＆ content be exceeded, making the cleannes severe exacerbation of lubricating oil.Uncleanly lubricating oil meeting
Negative effect is played to the fatigue life of gear, the abrasion of oil sealing and the corrosion of inner body, especially to bearing life shadow
Sound is huge.In the service life of bearing calculates, the contamination factor of lubricating oil plays vital work to bearing life correction factor
With with successively decreasing for lubricant pollution coefficient, bearing life correction factor drastically declines.Therefore, hub reduction gear air vent
The function of device influences the actual life of hub reduction gear very big.
Hub reduction gear is discharged because lubricating grease sends out gas thermogenetic by breather, it is desirable that in hub reduction gear internal pressure
For 0.02Mpa when not pressure release, when internal pressure reaches 0.03MPa, breather open pressure release, hub reduction gear is in hydraulic pressure
There cannot be water to enter hub reduction gear by breather when 0.05MPa.Current breather pressurize and pressure release range is small to be difficult to control
System, dwell pressure and vent pressure precision can not also ensure that water enters hub reduction by breather after water under hub reduction gear
Phenomena such as in device, can not effectively avoid.
Invention content
There is provided a kind of simple structure and reasonable design, pressurize pressure release control essences for the technical issues of the utility model solves
The true and preferable hub reduction gear breather of sealing effect.
The utility model adopts the following technical scheme that solve above-mentioned technical problem, a kind of hub reduction gear breather,
It is characterized in that including shell, spring base, O-ring seal, spring, valve base, annular sealing strip and bonded washer, under hull outside
Portion is equipped with annular ligament angle, and shell is connected by the bonded washer being sheathed on annular ligament angle with hub reduction gear box sealing
It connects, enclosure interior is equipped with axial step through-hole, and annular sealing strip, valve base, bullet are equipped with successively on the step of axial step through-hole
The both ends of spring and spring base, wherein spring are fixedly connected with valve base and spring base respectively, and valve base is for compressing ring packing
To form the sealing of axial step through-hole, spring base is sealingly fastened in by O-ring seal in axial step through-hole band, O-shaped close
Housing sidewall between seal and annular sealing strip is equipped with the step gas vent tilted down.
Further preferably, be equipped with successively along airintake direction in the axial step through-hole of the annular sealing strip lower part baffle ring and
Filtering layer, guide ring are made of 304 stainless steel tubes.
The utility model efficiently solve hub reduction gear in particular circumstances in use, breather must to have sealing anti-
The problem of dirt, damp proof and ventilative decompression function；Pollution of the environmental contaminants to hub reduction gear lubricating oil effectively has been cut off, had both been prolonged
The replacement cycle of hub reduction gear lubricating oil has been grown, and has improved the service life of hub reduction gear, has been entirely capable of meeting coal, water
Mud conveyer, environmentally friendly aerator, water conservancy headstock gear hub reduction gear are to the particular/special requirement of breather.In addition, the sealing of shell
Position uses the ligament angle of reasonable design, not only ensures not damage caulking gum, but also can ensure there are enough sealings with caulking gum
Face, sealing effect are preferable；Step gas vent inclined design reaches the gas storage maximum in breather passage, and then preferable shape
At seal cavity, the possibility that water enters breather cavity is reduced to the greatest extent.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1- spring bases, 2-O type sealing rings, 3- shells, 4- springs, 5- valve bases, 6- bonded washers, 7- filtering layers, 8-
Baffle ring, 9- bands, 10- step gas vents.
Specific implementation mode
The specific technical solution of the utility model is described in detail in conjunction with attached drawing.A kind of hub reduction gear breather, including shell
Body 3, spring base 1, O-ring seal 2, spring 4, valve base 5, annular sealing strip 9 and bonded washer 6,3 outer lower portion of shell are equipped with
Annular ligament angle, shell 3 are connect by the bonded washer 6 being sheathed on annular ligament angle with hub reduction gear box sealing, shell
Body 3 is internally provided with axial step through-hole, and annular sealing strip 9, valve base 5, spring 4 are equipped with successively on the step of axial step through-hole
With spring base 1, the wherein both ends of spring 4 are fixedly connected with valve base 5 and spring base 1 respectively, and valve base 5 is close for compressing annular
Band 9 is sealed to form the sealing of axial step through-hole, spring base 1 is sealingly fastened in by O-ring seal 2 in axial step through-hole, O
3 side wall of shell between type sealing ring 2 and annular sealing strip 9 is equipped with the step gas vent 10 tilted down, and the annular is close
It seals in the axial step through-hole of 9 lower part of band and is equipped with baffle ring 8 and filtering layer 7 successively along airintake direction, guide ring 8 is by 304 stainless steels
Pipe is made.
The operation principle of the utility model is：Hub reduction gear is realized by the closing and unlatching of breather sealing position
Pressurize and decompression function, when hub reduction gear internal pressure is less than dwell pressure, breather sealing position is closed to reach sealing
Effect；When hub reduction gear internal pressure reaches vent pressure, breather work, breather sealing position unlatching is let out
Pressure, when hub reduction gear internal pressure power is less than dwell pressure after pressure release, breather sealing position automatic sealing package under the action of the spring
It closes.
The basic principle of the utility model, main feature and advantage has been shown and described above, it is new not departing from this practicality
Under the premise of type spirit and scope, the utility model also has various changes and modifications, these changes and improvements both fall within requirement and protect
The scope of the utility model of shield.
Claims (2)
1. a kind of hub reduction gear breather, it is characterised in that including shell, spring base, O-ring seal, spring, valve base, ring
Shape band and bonded washer, hull outside lower part are equipped with annular ligament angle, and shell passes through the group that is sheathed on annular ligament angle
It closes washer to connect with hub reduction gear box sealing, enclosure interior is equipped with axial step through-hole, on the step of axial step through-hole
It is equipped with annular sealing strip, valve base, spring and spring base successively, the both ends of wherein spring are fixed with valve base and spring base respectively
Connection, for compressing annular sealing strip to form the sealing of axial step through-hole, spring base is sealed valve base by O-ring seal
It is fixed in axial step through-hole, the housing sidewall between O-ring seal and annular sealing strip is equipped with the step tilted down
Gas vent.
2. hub reduction gear breather according to claim 1, it is characterised in that：The axial direction of the annular sealing strip lower part
It is equipped with baffle ring and filtering layer successively along airintake direction in step through-hole, guide ring is made of 304 stainless steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820372255.4U CN207921296U (en) | 2018-03-19 | 2018-03-19 | A kind of hub reduction gear breather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820372255.4U CN207921296U (en) | 2018-03-19 | 2018-03-19 | A kind of hub reduction gear breather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207921296U true CN207921296U (en) | 2018-09-28 |
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ID=63595942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820372255.4U Active CN207921296U (en) | 2018-03-19 | 2018-03-19 | A kind of hub reduction gear breather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207921296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223768A (en) * | 2018-03-19 | 2018-06-29 | 新乡平特滤清器有限公司 | A kind of hub reduction gear breather |
-
2018
- 2018-03-19 CN CN201820372255.4U patent/CN207921296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223768A (en) * | 2018-03-19 | 2018-06-29 | 新乡平特滤清器有限公司 | A kind of hub reduction gear breather |
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