CN206582328U - A kind of double dust excluder lips oil sealings of resistance to high-low pressure in rice field - Google Patents
A kind of double dust excluder lips oil sealings of resistance to high-low pressure in rice field Download PDFInfo
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- CN206582328U CN206582328U CN201720260229.8U CN201720260229U CN206582328U CN 206582328 U CN206582328 U CN 206582328U CN 201720260229 U CN201720260229 U CN 201720260229U CN 206582328 U CN206582328 U CN 206582328U
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Abstract
The utility model discloses a kind of double dust excluder lips oil sealings of the resistance to high-low pressure in rice field, including oil sealing outer rim, the L-type oil tight skeleton and main oil-sealing mouth and first of dust-proof lip being embedded in oil sealing outer rim, ring spring is provided with main oil-sealing mouth, the dust-proof lip of second polyurethane high molecule is provided between main oil-sealing mouth and first of dust-proof lip, main oil-sealing mouth diameter is more than first of dust-proof dust-proof lip diameter of lip and second polyurethane high molecule, first of dust-proof lip is identical with the dust-proof lip diameter of second polyurethane high molecule, it is all higher than being driven shaft diameter, first of dust-proof dust-proof lip of lip and second polyurethane high molecule is linear contact lay with the power transmission shaft way of contact.Anti- muddy water ability is improved, the oil leakage phenomenon for preventing the impurity such as dust, sand grain from entering primary seal hydraulic fluid port and causing oil sealing earlier period damage to produce improves the high voltage performance of product, extends the service life of product.
Description
Technical field
The utility model belongs to agricultural machinery technical field of sealing technology, the double dust excluder lips oil sealings of more particularly to a kind of resistance to high-low pressure in rice field.
Background technology
In structure design applied to the oil sealing on the machine equipment of rice field, due to particular job environment of equipment, one is generally set
Individual dust-proof lip, the main function of dust-proof lip is the entrance for preventing other impurity such as dust, silt.But existing product is single secondary
Lip type oil seal, when being worked under rice field and other adverse circumstances, anti-muddy water is limited in one's ability, and dust, silt easily enter oil sealing
Near main oil-sealing mouth, the main oil-sealing mouth of oil sealing can drastically wear and tear because of the presence of impurity, occur oil leakage phenomenon, product too early and lose
Effect, influences the sealing reliability of product, reduces the service life of product.
The content of the invention
In view of the deficienciess of the prior art, the utility model provides a kind of resistance to high-low pressure in rice field double dust excluder lips oil sealings, carry
High anti-muddy water ability, the oil leak for preventing the impurity such as dust, sand grain from entering primary seal hydraulic fluid port and causing oil sealing earlier period damage to produce
Phenomenon, improves the high voltage performance of product, extends the service life of product, is more applicable for rice field equipment.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of resistance to high-low pressure in rice field is double anti-
Dirt lip oil sealing, including oil sealing outer rim, the L-type oil tight skeleton that is embedded in oil sealing outer rim and main oil-sealing mouth and first of dust excluder lips
Mouthful, ring spring is provided with main oil-sealing mouth, it is high provided with second polyurethane between main oil-sealing mouth and first of dust-proof lip
The dust-proof lip of molecule, it is straight that main oil-sealing mouth diameter is more than first of dust-proof dust-proof lip of lip and second polyurethane high molecule
Footpath, first of dust-proof lip is identical with the dust-proof lip diameter of second polyurethane high molecule, is all higher than being driven shaft diameter, first
The dust-proof dust-proof lip of lip and second polyurethane high molecule is linear contact lay with the power transmission shaft way of contact.
Further, be between the main oil-sealing mouth and power transmission shaft 0.5 interference fit, first of dust-proof lip and the
Between the two dust-proof lips of road polyurethane high molecule and power transmission shaft be 0.3 interference fit.
Compared with prior art, the utility model advantage is：
The dust-proof lip of second polyurethane high molecule material is set between main lip and first of dust-proof lip, with anti-mud
Water, dust-proof and support primary seal body double action, can preferably prevent the impurity such as silt from entering primary seal hydraulic fluid port and cause oil sealing
The oil leakage phenomenon that earlier period damage is produced, improves the high voltage performance of product；The dust-proof lip tool of second polyurethane high molecule material
There is high abrasion and certain hardness, effectively reduce the premature abrasion of product, add the service life of product.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is further described to the utility model.
As shown in figure 1, a kind of double dust excluder lips oil sealings of resistance to high-low pressure in rice field, including oil sealing outer rim 1, it is embedded in oil sealing outer rim 1
L-type oil tight skeleton 2 and main oil-sealing mouth 4 and first of dust-proof lip 5, ring spring 3, primary seal are provided with main oil-sealing mouth 4
The dust-proof lip 6 of second polyurethane high molecule is provided between oily lip 4 and first of dust-proof lip 5, the main diameter of oil-sealing mouth 4 is big
In first of dust-proof dust-proof diameter of lip 6 of lip 5 and second polyurethane high molecule, first dust-proof lip 5 and second gather
The dust-proof diameter of lip 6 of urethane macromolecule is identical, is all higher than being driven shaft diameter, first dust-proof lip 5 and second polyurethane are high
The dust-proof lip 6 of molecule is linear contact lay with the power transmission shaft way of contact；Between main oil-sealing mouth 4 and power transmission shaft be 0.5 interference fit,
Between the first dust-proof dust-proof lip 6 of lip 5 and second polyurethane high molecule and power transmission shaft be 0.3 interference fit.
By experiment, oil sealing of the present utility model improves 2-3 times than the existing oil sealing life-span, can meet use requirement.
In summary, the utility model sets second polyurethane high molecule material between main lip and first of dust-proof lip
Expect dust-proof lip, with anti-muddy water, dust-proof and support primary seal body double action, can preferably prevent the impurity such as silt from entering
Primary seal hydraulic fluid port and cause oil sealing earlier period damage produce oil leakage phenomenon, improve product high voltage performance；Second polyurethane is high
The dust-proof lip of molecular material has high abrasion and certain hardness, effectively reduces the premature abrasion of product, adds product
Service life.
Certainly, described above is not that, to limitation of the present utility model, the utility model is also not limited to the example above, this
The those of ordinary skill of technical field, in essential scope of the present utility model, the variations, modifications, additions or substitutions made, all
Protection domain of the present utility model should be belonged to.
Claims (2)
1. a kind of double dust excluder lips oil sealings of resistance to high-low pressure in rice field, including oil sealing outer rim, the L-type oil tight skeleton that is embedded in oil sealing outer rim and
Ring spring is provided with main oil-sealing mouth and first of dust-proof lip, main oil-sealing mouth, it is characterised in that：Main oil-sealing mouth and
The dust-proof lip of second polyurethane high molecule is provided between dust-proof lip together, main oil-sealing mouth diameter is more than first of dust excluder lips
Mouth and the dust-proof lip diameter of second polyurethane high molecule, first of dust-proof dust-proof lip of lip and second polyurethane high molecule
Diameter is identical, is all higher than being driven shaft diameter, the first dust-proof dust-proof lip of lip and second polyurethane high molecule and power transmission shaft
The way of contact is linear contact lay.
2. the double dust excluder lips oil sealings of the resistance to high-low pressure in rice field according to claim 1, it is characterised in that：The main oil-sealing mouth with
Between power transmission shaft be 0.5 interference fit, the first dust-proof dust-proof lip of lip and second polyurethane high molecule and power transmission shaft
Between be 0.3 interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720260229.8U CN206582328U (en) | 2017-03-17 | 2017-03-17 | A kind of double dust excluder lips oil sealings of resistance to high-low pressure in rice field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720260229.8U CN206582328U (en) | 2017-03-17 | 2017-03-17 | A kind of double dust excluder lips oil sealings of resistance to high-low pressure in rice field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582328U true CN206582328U (en) | 2017-10-24 |
Family
ID=60114368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720260229.8U Active CN206582328U (en) | 2017-03-17 | 2017-03-17 | A kind of double dust excluder lips oil sealings of resistance to high-low pressure in rice field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582328U (en) |
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2017
- 2017-03-17 CN CN201720260229.8U patent/CN206582328U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 39 Hua'an Road, Pengjiatai Community, Xiazhuang Street, Chengyang District, Qingdao City, Shandong Province, 266041 Patentee after: Qingdao Baofeng Shengfuhua Sealing Technology Co.,Ltd. Address before: No. 39 Hua'an Road, Pengjiatai Community, Xiazhuang Street, Chengyang District, Qingdao City, Shandong Province, 266041 Patentee before: QINGDAO BAOFENG SHENGFUHUA SEALING PRODUCTS IMPORT & EXPORT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |