CN214274486U - Reinforced polyether type polyester shaft seal part - Google Patents
Reinforced polyether type polyester shaft seal part Download PDFInfo
- Publication number
- CN214274486U CN214274486U CN202023020509.2U CN202023020509U CN214274486U CN 214274486 U CN214274486 U CN 214274486U CN 202023020509 U CN202023020509 U CN 202023020509U CN 214274486 U CN214274486 U CN 214274486U
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- rubber block
- shaft seal
- type polyester
- polyether type
- radial
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Abstract
The utility model relates to a strenghthened type polyether type polyester shaft seal spare, including axial rubber block and radial rubber block, axial rubber block and radial rubber block an organic whole make seamless structure, it has polyether type polyester sealing rubber lip to make in the outside of radial rubber block, make at the top of axial rubber block an organic whole has T type lug, in the lower part of T type lug, polyether type polyester overcoat is made to the periphery of radial rubber block. The utility model discloses improve a strenghthened type polyether type polyester shaft seal spare, the bearing seal structure elastic property reinforcing after the improvement can resume former shape after receiving tensile or extrusion deformation, has high resistance to abrasion, and it is better to use pump (the pump that row presses high) effect in the storehouse through the practice, and life can improve 3 ~ 4 times.
Description
Technical Field
The utility model belongs to the technical field of it is sealed, relate to bearing seal subassembly processing, especially a strenghthened type polyether type polyester shaft seal spare.
Background
The mud pump shaft seal is lip seal, the second shaft seal of its three shaft seals is on the white steel bush of pump shaft, have the spiral and move on the groove that advances gradually, high pressure seal water is through the sealed circumference rotation on white steel bush helicla flute of lip, discharge water from the helicla flute, in this process, the pressure of the pump body can be balanced to water pressure when establishing the hydrodynamic force lubricant film, partly rivers go out the helicla flute simultaneously, to another shaft seal room, so the second shaft seal resists high, the wearing and tearing volume is the biggest, thereby it influences work efficiency and increases change and cost of maintenance very easily to damage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's weak point, to present mud pump pressure higher than 15 kg/square meter and the operating mode that contains the abrasive material granule more than in the processing water and be greater than 100 microns, provide a strenghthened type polyether type polyester shaft seal spare, have excellent wear resistance, still have the high elasticity moreover under the high rigidity, resistant grease performance is superior, through many years' practice application result, life can improve 3 ~ 4 times.
The utility model provides a its technical problem take following technical scheme to realize:
the utility model provides a strenghthened type polyether type polyester shaft seal spare, includes axial rubber block and radial rubber block, axial rubber block and radial rubber block an organic whole make seamless structure, it has polyether type polyester sealing rubber lip to make in the outside of radial rubber block, makes at the top of axial rubber block an organic whole has T type lug, in the lower part of T type lug, the periphery of radial rubber block is made has polyether type polyester overcoat.
And a polyether type polyester inner supporting column is coaxially arranged in the axial rubber block.
And a supporting steel ring is coaxially arranged in the polyether type polyester inner supporting column.
And a groove is formed on the inner side of the tail end of the radial rubber block, and a reinforced rubber column is inserted in the groove.
The utility model has the advantages that:
the utility model discloses improve a strenghthened type polyether type polyester shaft seal spare, the bearing seal structure elastic property reinforcing after the improvement can resume former shape after receiving tensile or extrusion deformation, has high resistance to abrasion, and it is better to use pump (the pump that row presses high) effect in the storehouse through the practice, and life can improve 3 ~ 4 times.
Drawings
Fig. 1 is a structural sectional view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
A reinforced polyether polyester shaft seal part is shown in figure 1 and comprises an axial rubber block 5 and a radial rubber block 8, wherein the axial rubber block and the radial rubber block are integrally made into a seamless structure, a polyether polyester sealing rubber lip 7 is manufactured on the outer side of the radial rubber block, a T-shaped convex block 4 is integrally manufactured at the top of the axial rubber block, a polyether polyester outer sleeve 6 is manufactured on the periphery of the radial rubber block at the lower part of the T-shaped convex block, and a polyether polyester inner support column 2 is coaxially arranged in the axial rubber block.
A supporting steel ring 3 is coaxially arranged in the polyether type polyester inner supporting column.
A groove 9 is formed on the inner side of the tail end of the radial rubber block, and a reinforced rubber column 1 is inserted in the groove.
The utility model discloses improve a strenghthened type polyether type polyester shaft seal spare, the bearing seal structure elastic property reinforcing after the improvement can resume former shape after receiving tensile or extrusion deformation, has high resistance to abrasion, and it is better to use pump (the pump that row presses high) effect in the storehouse through the practice, and life can improve 3 ~ 4 times.
The reinforced polyether type polyester is a high polymer between rubber and plastic, and the quality requirements and parameters of the polyether type polyester shaft seal are as follows:
1. density of 1.08 mg/square meter
2. Hardness 95 + - (Shore A)
3. Tensile strength 39MPa
4. Elongation at break of 610%
5.100% stress at definite elongation of 5.9MPa
6.300% stress at definite elongation of 11.0MPa
7. Tear strength 36 KN/square meter
8. Compression set
15(70C*24h*15％)
9. Allowable pressure (P)60Kg/cm
10. The rebound resilience is more than or equal to 67 percent
11. Peel strength 23.6N/mm
The wear resistance is 5-10 times of that of natural rubber, 3 times higher than that of styrene butadiene rubber, the mechanical strength is 2-3 times of that of the natural rubber, and the mechanical properties such as tensile strength, elongation at break, tear strength and the like of the rubber are greatly superior to those of common rubber materials; the elastic rubber has a wide hardness adaptation range, and can keep high elasticity in a wide hardness range (Shore A10-Shore D98); the high-hardness high-elasticity high-toughness high-surface-smoothness high-toughness high; secondly, the rubber has a wider modulus (the ratio of stress to strain of the material under a stress state) range, and the modulus of the rubber is between that of common rubber and plastic; the oil and grease resistance is excellent (the oil resistance is 3-5 times of that of nitrile-butadiene rubber), and the chemical resistance is good.
The oil resistance is better than that of nitrile rubber; the ageing resistance is superior to that of natural rubber and other synthetic rubber; hydrolysis resistance, acid and alkali resistance. Moreover, the polyether polyester product has excellent radiation resistance and ozone resistance; the low temperature resistance is better. The temperature range of the product for long-time continuous work is generally 80-90 ℃, and the temperature for short-time use can reach 100 ℃.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (4)
1. A strenghthened type polyether type polyester shaft seal spare which characterized in that: the sealing rubber lip is characterized by comprising an axial rubber block and a radial rubber block, wherein the axial rubber block and the radial rubber block are integrally made into a seamless structure, a polyether type polyester sealing rubber lip is manufactured on the outer side of the radial rubber block, a T-shaped convex block is integrally manufactured at the top of the axial rubber block, and a polyether type polyester outer sleeve is manufactured on the periphery of the radial rubber block at the lower part of the T-shaped convex block.
2. The reinforced polyether polyester shaft seal of claim 1, wherein: and a polyether type polyester inner support column is coaxially arranged in the axial rubber block.
3. The reinforced polyether polyester shaft seal of claim 2, wherein: and a support steel ring is coaxially arranged in the polyether type polyester inner support column.
4. The reinforced polyether polyester shaft seal of claim 1, wherein: the inner side of the tail end of the radial rubber block is provided with a groove, and a reinforced rubber column is inserted in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023020509.2U CN214274486U (en) | 2020-12-16 | 2020-12-16 | Reinforced polyether type polyester shaft seal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023020509.2U CN214274486U (en) | 2020-12-16 | 2020-12-16 | Reinforced polyether type polyester shaft seal part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274486U true CN214274486U (en) | 2021-09-24 |
Family
ID=77781664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023020509.2U Active CN214274486U (en) | 2020-12-16 | 2020-12-16 | Reinforced polyether type polyester shaft seal part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214274486U (en) |
-
2020
- 2020-12-16 CN CN202023020509.2U patent/CN214274486U/en active Active
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