CN201093073Y - Water rotary seal assembly - Google Patents
Water rotary seal assembly Download PDFInfo
- Publication number
- CN201093073Y CN201093073Y CNU2007200156104U CN200720015610U CN201093073Y CN 201093073 Y CN201093073 Y CN 201093073Y CN U2007200156104 U CNU2007200156104 U CN U2007200156104U CN 200720015610 U CN200720015610 U CN 200720015610U CN 201093073 Y CN201093073 Y CN 201093073Y
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- annulus
- seal ring
- rubber seal
- ring
- shape rubber
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Abstract
The utility model relates to a water rotary seal assembly, which is provided with a compound circular ring which is constituted by a left, a middle and a right circular rings whose inner diameters are same and is made of rigid material, the inner periphery of the compound circular ring is provided with a groove along the periphery, a radial water through hole is arranged at the bottom of the groove, the inner periphery of the combined circular ring and both sides of the groove are respectively provided with a right and a left F-shaped rubber sealing rings and a left and a right U-shaped rubber sealing rings, the openings of the right and the left F-shaped rubber sealing rings and the left and the right U-shaped rubber sealing rings are opposite, a spring ring of a U-shaped cross section is arranged in the opening of the F-shaped rubber sealing ring, and the outer periphery of the compound circular ring and both sides of the radial water through hole are respectively provided with a left and a right O-shaped rubber sealing rings along the periphery. The utility model is provided with a compound circular ring which is made of rigid material, and the inner periphery of the compound circular ring is provided with an F-shaped rubber dynamic sealing rubber sealing ring which has self sealing property, which has the advantages of reliable sealing, long life span and convenient conversing in maintenance. The utility model is applied in tunnelling machines, water rotary seal of main shafts which are driven by knife discs of coal cutters.
Description
Technical field
The utility model relates to the water rotating seal of a kind of development machine, coal winning machine cutter plate driver main shaft, particularly a kind of combination annulus of water rotating seal of development machine cutter plate driver main shaft.
Background technique
Axial water port is arranged in the drive main spindle of mining excavation machine or coal winning machine cutterhead, axially can feed the higher water of pressure in the water port, the higher water of pressure can be in the ejection of cutterhead place, cutterhead is cooled at work and makes the working surface depositing dust.For the axial water port water flowing in main shaft on frame, the radially water intake that communicates with axial water port is arranged on the drive main spindle, on the frame, the radially water inlet of the axial water port of main shaft is with water swivel, water swivel has the interior circular hole that matches with the excircle of main shaft, the circumference of circular hole has the groove along circumference in the water swivel, radially water port is arranged at the bottom of the groove, groove is to cover on the radially water intake of main shaft, the groove both sides of the interior circular hole of water swivel, lip ring groove along circumference is arranged, the water rotating seal ring is arranged in the lip ring groove, and the water rotating seal ring is used for main shaft at the higher water of rotation sealing load.In the prior art, a kind of compound seal ring of the water rotating seal ring useful being called " Glais ring " in the above-mentioned lip ring groove, " Glais ring " have the interior ring of teflon and the outer shroud of RUBBER O shape ring.Teflon is a rigid material, between the internal diameter of ring and the main shaft external diameter strict matching gap to be arranged in the teflon of this water rotating seal ring, form sealing pair, make main shaft sealed high pressure water in rotation, at development machine, under the more abominable working condition of coal winning machine, using is not that sealing pair can wear and tear behind the long time, after the sealing pair wearing and tearing, the internal diameter of ring and the gap between the main shaft external diameter become big in the teflon, ring can not replenish the gap in the teflon of rigid material, high pressure water is revealed, some water swivel and lubricant oil swivel joint connect together, after revealing, can mix in water water and the performance and the working life that greatly influence lubricant oil after lubricant oil mixes with lubricant oil; Manufacturing has with main shaft that ring is very very difficult in the teflon of strict matching gap, it is higher to manufacture expense, if matching gap is big when manufacturing, short time will reveal, matching gap is little, and ring meeting lock ring is on main shaft in the teflon, and sealing pair changes, cause the friction between the outer shroud of the interior ring of teflon and RUBBER O shape ring, also can cause seal failure very soon; Even internal diameter that encircles in the teflon when manufacturing and main shaft have strict matching gap, also may be different with the thermal expansion coefficient of steel because of teflon, the gap between interior ring of teflon and main shaft is in use changed, the leakage of water takes place; In addition, the both sides of circular hole groove in the water swivel, twice " Glais ring " are arranged respectively, the water rotating seal ring uses under the more abominable working condition of development machine, coal winning machine and often need change in maintenance, pretty troublesome when changing the water rotating seal ring merely in maintenance, this water rotating seal ring is not the sealing that is well suited for as the radially water inlet water swivel of development machine, the axial water port of coal winning machine main shaft.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, propose a kind of manufacture easily, change convenient, the expense of manufacturing is lower, good seal performance, long service life, be suitable as the water rotary sealing assembly of the radially water inlet water swivel sealing of development machine, the axial water port of coal winning machine main shaft.
The utility model is realized with the following method.
It is the combination annulus of rectangle that the water rotary sealing assembly has the cross section of rigid material, the combination annulus has a continuous left side, in, right three annulus that internal diameter is identical, the inner circumference of middle annulus has the groove along circumference, radially water port is arranged at the bottom of the groove, the inner circumference of middle annulus, the mounting groove that a left side " F " shape rubber seal ring along circumference is arranged between the left end of middle annulus and the left annulus, the inner circumference of middle annulus, the mounting groove that the right side " F " shape rubber seal ring along circumference is arranged between the right-hand member of middle annulus and the right annulus, " F " shape rubber seal ring is arranged in the mounting groove of " F " shape rubber seal ring, a left side, the opening of " F " shape rubber seal ring in the mounting groove of right " F " shape rubber seal ring is relative, the spring ring that the U-shaped cross section is arranged in the opening of " F " shape rubber seal ring, a left side, right annulus inner circumference has a left side, right rubber seal ring mounting groove.
The utility model is installed between the inner circumference of the drive main spindle of development machine, coal winning machine cutterhead and water swivel, the radius of water swivel inner circumference matches with the wall thickness of combination annulus of the present utility model with the difference of the radius of drive main spindle, and the water swivel inner circumference, radially there is the mounting groove of " O " shape rubber seal ring the both sides of water inlet.During installation, at the water swivel inner circumference, " O " shape rubber seal ring radially is installed in the mounting groove of " O " shape rubber seal ring of the both sides of water inlet, the excircle of annulus is formed the static seal pair in " O " shape rubber seal ring and the utility model, allow the radially water inlet of water swivel communicate with radially water port of the present utility model, the left side of middle annulus inner circumference, right " F " shape rubber seal ring is respectively in the both sides, radially water inlet of drive main spindle, the left side of middle annulus inner circumference, right " F " shape rubber seal ring and drive main spindle are formed initiatively sealing pair, a left side, in the rubber seal ring mounting groove of right annulus inner circumference rubber seal ring is installed, a left side, the rubber seal ring and the drive main spindle of right annulus inner circumference are formed secondary motive sealing pair, the spring ring that the U-shaped cross section is arranged in the opening of " F " shape rubber seal ring, the opening of " F " shape rubber seal ring is towards the high pressure side, and the spring ring in U-shaped cross section can support the sealing that helps high pressure water to the opening of " F " shape rubber seal ring.During use, on high-tension side pressure can be the opening spreading of " F " shape rubber seal ring, and " F " shape rubber seal ring has the pressure good more selfsealings performance of high sealing more, and sealing is reliable; When the active sealing pair had wearing and tearing to produce the gap, the seal lip that the spring ring in U-shaped cross section can promote " F " shape rubber seal ring was affixed to the excircle of drive main spindle, the gap that compensation produces because of wearing and tearing, and working life is longer; The utlity model has left and right " F " shape rubber seal ring and drive main spindle and form initiatively sealing pair, secondary motive sealing pair has the rubber seal ring of left and right annulus inner circumference, and sealing is reliable, and secondary motive sealing pair also has dustproof effect; The utility model has the combination annulus, and the combination annulus is inlaid with corresponding rubber seal ring, can integral replacing during overhaul, and it is convenient to change when maintenance.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that the master of a kind of water rotary sealing assembly of proposing according to invention scheme of the present utility model looks schematic representation;
Fig. 2 is the side cross-sectional schematic of Fig. 1;
Fig. 3 is the I place enlarged diagram of Fig. 2;
Fig. 4 is the side cross-sectional schematic of the external diameter of annulus in the combination annulus greater than the water rotary sealing assembly of left and right annulus external diameter;
Fig. 5 is the I place enlarged diagram that is separately installed with Fig. 2 of " U " shape rubber seal ring that is embedded with " O " shape rubber seal ring in the rubber seal ring mounting groove of left and right annulus inner circumference of combination annulus;
Fig. 6 is the I place enlarged diagram that is separately installed with Fig. 2 of " U " shape rubber seal ring that is embedded with garter spring in the rubber seal ring mounting groove of left and right annulus inner circumference of combination annulus;
Fig. 7 is the cross section enlarged diagram that the seal lip place of " F " shape rubber seal ring is compounded with high-abrasive material thin slice ring;
Fig. 8 is that the seal lip place of " F " shape rubber seal ring is compounded with " F " shape rubber seal ring cross section enlarged diagram that the cross section is the high-abrasive material ring of O shape;
Fig. 9 is " F " shape rubber seal ring cross section enlarged diagram that the seal lip place of " F " shape rubber seal ring is compounded with the cross section high-abrasive material ring identical with the lip cross section;
Figure 10 is " F " shape rubber seal ring cross section enlarged diagram that the seal lip place of " F " shape rubber seal ring is compounded with the cross section high-abrasive material ring identical with sealing limb cross section.
Figure 11 is the I place enlarged diagram that the Fig. 2 that links to each other with screw between the left, center, right annulus of the boss that matches is arranged.
Figure 12 is the middle annulus excircle of combination annulus, radially the both sides of water port have along the I place enlarged diagram of Fig. 2 of left and right " O " shape rubber seal ring mounting groove of circumference.
Embodiment
Fig. 1, Fig. 2, among Fig. 3, it is the combination annulus 1 of rectangle that the water rotary sealing assembly has the cross section of rigid material, the combination annulus has an internal diameter left side identical with external diameter, in, right three annulus 2,3,4, the boss 5 that matches is arranged between the adjacent annulus, adjacent annulus links to each other with the boss engagement, the inner circumference of middle annulus has the groove 6 along circumference, radially water port 7 is arranged at the bottom of the groove, the inner circumference of middle annulus, the mounting groove 8 that a left side " F " shape rubber seal ring along circumference is arranged between the left end of middle annulus and the left annulus, the inner circumference of middle annulus, the mounting groove 9 that the right side " F " shape rubber seal ring along circumference is arranged between the right-hand member of middle annulus and the right annulus, " F " shape rubber seal ring 10 is arranged in the mounting groove of " F " shape rubber seal ring, a left side, the opening of " F " shape rubber seal ring in the mounting groove of right " F " shape rubber seal ring is relative, the spring ring 11 that the U-shaped cross section is arranged in the opening of " F " shape rubber seal ring, a left side, right annulus inner circumference has a left side, right rubber seal ring mounting groove 12,13.
In the combinations thereof annulus, three annulus in left, center, right have identical internal diameter and external diameter, and the boss that matches is arranged between the adjacent annulus, and adjacent annulus links to each other with the boss engagement.Three annulus in above-mentioned continuous left, center, right also can be that identical internal diameter is arranged, and the external diameter of middle annulus is greater than the external diameter of left and right annulus.
Among Fig. 4, three annulus in left, center, right of combination annulus have identical internal diameter, the external diameter of middle annulus 14 is greater than the external diameter of left and right annulus 15,16, there is boss 17 at the left and right two ends of middle annulus, left side annulus and right annulus are in boss, the left side of left side of annulus, a left side and middle annulus at grade, the right side of right annulus and the right side of middle annulus are at grade.The left side of left side and right side, in two rings and in, can prevent the axially steady in relative rotation nail 26 of left and right at work two rings between right two rings respectively.
Can be separately installed with " U " shape rubber seal ring in the left and right rubber seal ring mounting groove of the left and right annulus inner circumference of combination annulus with selfsealings performance, the opening of " U " shape rubber seal ring is relative, the sealability of left and right in order to improve " U " shape rubber seal ring can have in the opening of " U " shape rubber seal ring to be embedded with shape rubber ring or the garter spring that the cross section is O.
Among Fig. 5, left and right " U " shape rubber seal ring is embedded with the shape rubber ring 18 that the cross section is O.
Among Fig. 6, left and right " U " shape rubber seal ring is embedded with garter spring 19.
Above-mentioned " F " shape rubber seal ring can be the rubber seal ring of single glue kind, it also can be the compounded rubber seal ring that is compounded with the high-abrasive material ring at the seal lip place, the high-abrasive material ring can be the thin slice ring, also can be that the cross section is that the ring of O shape also can be cross section ring identical with the lip cross section or the cross section ring identical with sealing limb cross section.High-abrasive material can be polytetrafluoroethylplastic plastic or fluorine rubber.
Among Fig. 7, the seal lip of " F " shape rubber seal ring is compounded with high-abrasive material thin slice ring 20.
Among Fig. 8, the seal lip of " F " shape rubber seal ring is compounded with the high-abrasive material ring 21 that the cross section is an O shape.
Among Fig. 9, the seal lip place of " F " shape rubber seal ring is compounded with the cross section high-abrasive material ring 22 identical with the lip cross section.
Among Figure 10, the seal lip place of " F " shape rubber seal ring is compounded with cross section and the identical high-abrasive material ring 23 in sealing limb cross section.
The outer peripheral surface of combinations thereof annulus does not have the seal ring mounting groove.The excircle of annulus, the both sides of water port also can have respectively along the mounting groove of the left and right rubber seal ring of circumference in the combination annulus, and the inner circumference of rubber seal ring and water swivel is formed the static seal pair.
Between the left, center, right annulus of combinations thereof annulus the boss that matches is arranged, engagement links to each other the left, center, right annulus by boss.The combination annulus has the also available screw of left, center, right annulus of the boss that matches to link to each other.
Among Figure 11, the combination annulus have between the left side of the boss that matches, the middle annulus and in, be evenly equipped with attachment screw 24 between the right annulus.
If the water swivel inner circumference, radially the both sides of water inlet do not have the mounting groove of " O " shape rubber seal ring, the combination annulus in annulus excircle, radially can there be left and right " O " shape rubber seal ring mounting groove along circumference the both sides of water port, " O " shape rubber seal ring can be installed in the mounting groove, form the static seal pair with the water swivel inner circumference.
Among Figure 12, the combination annulus in annulus excircle, radially there is left and right " O " shape rubber seal ring mounting groove 25 along circumference the both sides of water port.
Claims (10)
1. water rotary sealing assembly, it is characterized in that: the cross section that rigid material is arranged is the combination annulus of rectangle, the combination annulus has a continuous left side, in, right three annulus that internal diameter is identical, the inner circumference of middle annulus has the groove along circumference, radially water port is arranged at the bottom of the groove, the inner circumference of middle annulus, the mounting groove that a left side " F " shape rubber seal ring along circumference is arranged between the left end of middle annulus and the left annulus, the inner circumference of middle annulus, the mounting groove that the right side " F " shape rubber seal ring along circumference is arranged between the right-hand member of middle annulus and the right annulus, " F " shape rubber seal ring is arranged in the mounting groove of " F " shape rubber seal ring, a left side, the opening of " F " shape rubber seal ring in the mounting groove of right " F " shape rubber seal ring is relative, the spring ring that the U-shaped cross section is arranged in the opening of " F " shape rubber seal ring, a left side, right annulus inner circumference has a left side, right rubber seal ring mounting groove.
2. by the described water rotary sealing assembly of claim 1, it is characterized in that: three annulus in described left, center, right have identical external diameter, the boss that has engagement to link to each other between the adjacent annulus.
3. by the described water rotary sealing assembly of claim 1, it is characterized in that: the external diameter of annulus is greater than the external diameter of left and right annulus in described, there is boss at the left and right two ends of middle annulus, left side annulus and right annulus are in boss, the left side of left side of annulus, a left side and middle annulus at grade, the right side of right annulus and the right side of middle annulus are at grade.
4. by claim 1,2 or 3 described water rotary sealing assemblies, it is characterized in that: " U " shape rubber seal ring is arranged in the left and right rubber seal ring mounting groove of described left and right annulus inner circumference.
5. by the described water rotary sealing assembly of claim 4, it is characterized in that: described " U " shape rubber seal ring is embedded with " O " shape rubber seal ring.
6. by the described water rotary sealing assembly of claim 4, it is characterized in that: described " U " shape rubber seal ring is embedded with garter spring.
7. by claim 1,2,3,5 or 6 described water rotary sealing assemblies, it is characterized in that: the excircle of annulus in described, radially there is the left and right rubber seal ring mounting groove along circumference the both sides of water port.
8. by the described water rotary sealing assembly of claim 4, it is characterized in that: the excircle of annulus in described, radially there is the left and right rubber seal ring mounting groove along circumference the both sides of water port.
9. by claim 1,2,3,5,6 or 8 described water rotary sealing assemblies, it is characterized in that: described " F " shape rubber seal ring is the compounded rubber seal ring that is compounded with the high-abrasive material ring at the seal lip place.
10. by the described water rotary sealing assembly of claim 4, it is characterized in that: described " F " shape rubber seal ring is the compounded rubber seal ring that is compounded with the high-abrasive material ring at the seal lip place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200156104U CN201093073Y (en) | 2007-11-02 | 2007-11-02 | Water rotary seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200156104U CN201093073Y (en) | 2007-11-02 | 2007-11-02 | Water rotary seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201093073Y true CN201093073Y (en) | 2008-07-30 |
Family
ID=39901040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200156104U Expired - Fee Related CN201093073Y (en) | 2007-11-02 | 2007-11-02 | Water rotary seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201093073Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761716A (en) * | 2010-03-10 | 2010-06-30 | 无锡市长江液压缸厂 | Seal swivel joint |
| CN101832135A (en) * | 2010-04-27 | 2010-09-15 | 铁岭桦林浮动油封有限公司 | Water seal assembly of cantilever segment of tunneling machine |
| CN102071934A (en) * | 2010-12-27 | 2011-05-25 | 三一重型装备有限公司 | Heading machine and cantilever working mechanism thereof |
| CN103742645A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁德通网络有限公司 | Assembly-type seal ring |
| CN105927578A (en) * | 2016-06-30 | 2016-09-07 | 湘潭电机股份有限公司 | Rotation dynamic sealing device |
| CN112983921A (en) * | 2021-01-05 | 2021-06-18 | 威海中颐液压科技股份有限公司 | Spiral hydraulic swing motor |
-
2007
- 2007-11-02 CN CNU2007200156104U patent/CN201093073Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761716A (en) * | 2010-03-10 | 2010-06-30 | 无锡市长江液压缸厂 | Seal swivel joint |
| CN101832135A (en) * | 2010-04-27 | 2010-09-15 | 铁岭桦林浮动油封有限公司 | Water seal assembly of cantilever segment of tunneling machine |
| CN102071934A (en) * | 2010-12-27 | 2011-05-25 | 三一重型装备有限公司 | Heading machine and cantilever working mechanism thereof |
| CN102071934B (en) * | 2010-12-27 | 2012-10-03 | 三一重型装备有限公司 | Heading machine and cantilever working mechanism thereof |
| CN103742645A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁德通网络有限公司 | Assembly-type seal ring |
| CN105927578A (en) * | 2016-06-30 | 2016-09-07 | 湘潭电机股份有限公司 | Rotation dynamic sealing device |
| CN112983921A (en) * | 2021-01-05 | 2021-06-18 | 威海中颐液压科技股份有限公司 | Spiral hydraulic swing motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |