CN204176198U - Filter-type swivel joint - Google Patents
Filter-type swivel joint Download PDFInfo
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- CN204176198U CN204176198U CN201420571860.6U CN201420571860U CN204176198U CN 204176198 U CN204176198 U CN 204176198U CN 201420571860 U CN201420571860 U CN 201420571860U CN 204176198 U CN204176198 U CN 204176198U
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- filter
- axle sleeve
- rotating shaft
- ring
- impurity
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Abstract
The utility model relates to swivel joint technical field, disclose a kind of filter-type swivel joint, comprise hollow rotating shaft, axle sleeve, one end of axle sleeve is provided with end cap, the other end of axle sleeve is provided with connecting head, bearing is provided with between hollow rotating shaft and axle sleeve, also backbone sealing ring is provided with between described hollow rotating shaft and axle sleeve, the end winding support of hollow rotating shaft has Inner filter net, outer leaching net is provided with outside hollow rotating shaft end and between connecting head, one end of outer leaching net is fixedly connected with hollow rotating shaft by annular connecting base, the periphery of Inner filter net is connected with annular connecting base, the inner of connecting head is provided with connecting groove, the other end of outer leaching net stretches in connecting groove to be formed and is rotationally connected, annular connecting base is also provided with collection filter screen, the impurity that collection its interior is provided with annular stores chamber, impurity stores chamber and is communicated with annular impurity passage.Therefore, the utility model have can filter, store, the impurity of isolating in fluid, prevent impurity from entering sealing surface place, improve the beneficial effect in working life.
Description
Technical field
The utility model relates to swivel joint technical field, particularly relates to a kind of filter-type swivel joint.
Background technique
At present, in industries such as metallurgy, boats and ships lifting, chemical industry, pharmacy, in the rigid conduit of conveying high-pressure fluid, need between two pipelines swivel joint is installed in relative rotation, swivel joint generally comprises hollow shaft, axle sleeve, a connecting head, and connecting head is connected with fixing pipeline, and hollow shaft is connected with the pipeline of rotation, hollow shaft rotates in axle sleeve, thus realizes the connection of rotated pipe and fixing tube.Due to hollow shaft high speed rotating, high-pressure liquid is carried in hollow shaft, leak to prevent fluid between hollow shaft and axle sleeve, between hollow shaft periphery and axle sleeve, seal ring is installed, seal ring to be contacted with sealing surface by seal lip and seals, then fluid is through swivel joint, a small amount of immobilized particles impurity is there is in fluid, these impurity can enter between seal lip and sealing surface, thus the wearing and tearing of seal ring can be aggravated, cause seal lip to coordinate with sealing surface not tight simultaneously, cause oil liquid leakage.
Such as: Chinese patent Authorization Notice No.: CN201288908Y, authorized announcement date on August 12nd, 2009, disclose a kind of rigid rotating joint, comprise the static hollow casing that is connected with nested structure with quill shaft and relatively rotate hollow casing, cover inwall has step, there is lip backbone sealing ring this step end face and quill shaft end face joint, and wherein support frame used is cylindrically coiled spring ring, and cylindrically coiled spring ring is by banded reed coiling.This kind of rigidity is walked around in joint, can aggravate ring wear, cause oil liquid leakage when the solid particulate matter in fluid enters between seal lip and sealing surface, reduces the working life of seal ring.
Model utility content
The utility model easily enters in sealing surface in order to the solid particle polluter overcome in prior art in fluid, accelerate ring wear, cause the deficiency of oil liquid leakage, provide and a kind ofly can effectively prevent the solid particle polluter in fluid from entering in sealing surface, impurity screening, improves the filter-type swivel joint in working life.
To achieve these goals, the utility model adopts following technological scheme:
A kind of filter-type swivel joint, comprise hollow rotating shaft, axle sleeve, one end of axle sleeve is provided with end cap, the other end of axle sleeve is provided with connecting head, bearing is provided with between described hollow rotating shaft and axle sleeve, also backbone sealing ring is provided with between described hollow rotating shaft and axle sleeve, the end winding support of described hollow rotating shaft has Inner filter net, outer leaching net is provided with outside hollow rotating shaft end and between connecting head, one end of described outer leaching net is fixedly connected with hollow rotating shaft by annular connecting base, the periphery of described Inner filter net is connected with annular connecting base, the inner of described connecting head is provided with connecting groove, the other end of outer leaching net stretches in connecting groove to be formed and is rotationally connected, described outer leaching net and the connecting end of Inner filter net surround an annular impurity passage, described annular connecting base is also provided with collection filter screen, described collection filter screen structure ringwise, the impurity that its inside is provided with annular stores chamber, described impurity stores chamber and is communicated with annular impurity passage, be provided with carbon seal ring in described connecting groove, be provided with elastic seal ring outside the outer end of described outer leaching net, fitting with the inner ring of carbon seal ring and contact in the outside of elastic seal ring, is along the circumferential direction evenly fixed with some Heavy balls inside the outer end of described outer leaching net.
When fluid flows into hollow rotating shaft from connecting head, impurity in fluid is filtered by Inner filter net, outer leaching net, because Inner filter net, outer leaching net are all along with hollow rotating shaft rotates, impurity on Inner filter net outwards moves in annular impurity passage under the influence of centrifugal force, then accumulate in impurity and store chamber, such one side realizes the contaminant filter in fluid, can prevent again impurity from blocking Inner filter net and increasing fluid flow resistance on the other hand, outer leaching net can also effectively prevent impurity from entering in backbone sealing ring simultaneously, thus improves the working life of backbone sealing ring; Because the connection between connecting head and axle sleeve exists assembly error, when both coaxiality errors are larger, can cause there is gap between elastic seal ring and carbon seal ring, and in this structure, Heavy ball is along with Inner filter net generation centrifugal force when rotation, this centrifugal force makes elastic seal ring compress carbon seal ring, thus can overcome the gap that assembly error brings when rotational structure rotates.
As preferably, described Inner filter net spherically structure, described outer leaching net is round platform planar, the miner diameter end of outer leaching net is connected with annular connecting base, frustoconic shape connecting passage is provided with in described annular connecting base, the miner diameter end of described frustoconic shape connecting passage is communicated with annular impurity passage, and frustoconic shape connecting passage bigger diameter end stores chamber with impurity and is communicated with.Inner filter net spherically, causing being filtered impurity like this can under the percussion of fluid and in conjunction with centrifugal force, impurity can move quickly into annular impurity passage place, after impurity enters frustoconic shape connecting passage, because truncated cone-shaped channel is positioned at the outer of hollow rotating shaft, its inside does not have fluid to flow substantially, impurity is be dumped into impurity by centrifugal force to store in chamber in frustoconic shape connecting passage, enter impurity store chamber after impurity can not again enter along with fluid has flowed, thus constantly can accumulate in impurity and store in chamber, only need periodic cleaning.
As preferably, described backbone sealing ring comprises skeleton, seal ring body, the inner ring of described seal ring body extends to form the parallel seal lip of twice, the outer side surface inner ring of two seals lip is provided with sealing cone, the outer wall of described hollow rotating shaft is provided with circular groove, two sides of described circular groove are the conical surface of fitting with sealing cone, gap is formed between the inner ring of seal lip and the bottom land of circular groove, the outer ring sleeve of seal lip is provided with spring pressure ring, is evenly provided with some elastic supporting member for supporting optical member between two seals lip inner side surface.The bi-side gluing, sealing of seal lip and hollow rotating shaft circular groove, pass through spring pressure ring, elastic supporting member for supporting optical member to radial direction, the axial compression of sealing cone simultaneously, along with use, sealing cone constantly weares and teares, sealing cone still can keep and circular groove sidewall gluing, sealing, and sealing contact surface also increases along with wearing and tearing, sealing effect is better; Owing to passing through conical surface seal, even if when therefore wear extent is larger, seal lip also can not be wrinkling, even if hollow rotating shaft rotational vibrations, axial runout, seal lip can produce adaptive deformation fine setting according to the axial runout of rotating shaft under spring pressure ring, elastic supporting member for supporting optical member effect, and remain sealing, therefore this kind of swivel joint overall sealing performance is good, energy automatic compensation sealing during seal lip wearing and tearing, long service life.
As preferably, two side roof parts of described circular groove extend to form and form sealing bulge loop.Time backbone sealing ring just loads, the sealing cone in seal lip only with circular groove contacts side surfaces, along with the wearing and tearing of seal lip, sealing cone can increase, now the last branch of sealing cone with seal bulge loop and contact, further enhanced leaktightness.
As preferably, described elastic supporting member for supporting optical member is stage clip or reed.
As preferably, described elastic supporting member for supporting optical member is reed, and two seals lip inner side surface is respectively equipped with support ring, and described reed is V-shaped, and the opening end of reed extends to form junction surface, and described junction surface is connected with bolt between support ring.Support ring can prevent seal lip local compression to be out of shape.
As preferably, the bottom of described reed is provided with pull bar, the outer end of described pull bar is stretched out outside axle sleeve through backbone sealing ring, the outside of described axle sleeve is provided with beacon, the outer end of described pull bar is connected with beacon, when pull bar moves a certain distance to the axle center of axle sleeve, pull bar trigger alert lamp is opened.Along with the wearing and tearing of sealing cone, the opening of reed increases, axially produce displacement towards axle sleeve bottom reed, when displacement reaches a certain amount of time, now think that seal lip has reached inefficacy edge (namely further wearing and tearing can cause seal failure), pull bar synchronously can produce a displacement identical with reed, thus the switch in trigger alert lamp, beacon is opened, thus reminds maintenance man, backbone sealing ring will lose efficacy, and need to change immediately; And common swivel joint only has when occurring just can change or often change at regular intervals when leaking, leakage is changed and is easily caused the accident, and because installation environment is different, wearing-in period is also different, and periodic replacement easily causes waste.
As preferably, described axle sleeve outer side wall is provided with groove, and beacon is arranged in groove by fitting seat, is also provided with lever in fitting seat, and the outer end, long limit of lever is connected with beacon switch, and minor face and the pull bar of lever are hinged.Pull bar be displaced through lever amplification, lever the other end pressure beacon switch.
As preferably, the minor face of described lever is arranged with telescopic cover, and outer end and the pull bar of described telescopic cover are hinged, and the outside of described pull bar is arranged with guide sleeve.Guide sleeve ensures that pull bar pulls resistance little, and telescopic cover prevents lever rotation from causing pull bar and surrounding to be interfered.
Therefore, the utility model has following beneficial effect: (1) seal lip can compensate sealing, long service life automatically along with wearing and tearing; (2) Inner filter net can filter the impurity in fluid, and collect filter screen and can collect, store impurity, outer leaching net can effectively prevent the solid particle polluter in fluid from entering in sealing cone, lowers the wearing and tearing of seal lip, improves working life; (3) along with wearing and tearing, sealing surface increases gradually, further enhanced leaktightness; (4) when the wear extent of seal lip reaches inefficacy edge, warning is sent by beacon, prompting changing.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is A place partial enlargement structural representation in Fig. 1.
Fig. 3 is B place partial enlargement structural representation in Fig. 1.
Fig. 4 is the structural representation of Inner filter net, outer leaching net.
In figure: hollow rotating shaft 1 axle sleeve 2 end cap 3 connecting head 4 bearing 5 backbone sealing ring 6 circular groove 7 seals the annular impurity passage 201 of bulge loop 8 reed 9 pull bar 10 beacon 11 fitting seat 12 lever 13 telescopic cover 14 guide sleeve 15 skeleton 60 seal ring body 61 seal lip 610 sealing cone 611 spring pressure ring 612 support ring 613 junction surface 90 Inner filter net 100 connecting groove 101 annular connecting base 102 carbon seal ring 103 elastic seal ring 104 Heavy ball 105 frustoconic shape connecting passage 106 outer leaching net 200 and collects filter screen 202 impurity and store chamber 203.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of filter-type swivel joint as shown in Figure 1, comprise hollow rotating shaft 1, axle sleeve 2, one end of axle sleeve is provided with end cap 3, the other end of axle sleeve is provided with connecting head 4, connecting head is connected with axle sleeve bolt, the junction surface of connecting head and axle sleeve is provided with seal washer, bearing 5 is provided with between hollow rotating shaft and axle sleeve, backbone sealing ring 6 is also provided with between hollow rotating shaft 1 and axle sleeve 2, backbone sealing ring comprises skeleton 60, seal ring body 61, the inner ring of seal ring body 61 extends to form the parallel seal lip of twice 610, the outer side surface inner ring of two seals lip is provided with sealing cone 611, the outer wall of hollow rotating shaft 1 is provided with circular groove 7, two sides of circular groove are the conical surface of fitting with sealing cone, two side roof parts of circular groove 7 extend to form and form sealing bulge loop 8, gap is formed between the inner ring of seal lip 610 and the bottom land of circular groove, the outer ring sleeve of seal lip 610 is provided with spring pressure ring 612, some elastic supporting member for supporting optical member are evenly provided with between two seals lip inner side surface, elastic supporting member for supporting optical member can be stage clip or reed, in the present embodiment, elastic supporting member for supporting optical member is reed 9
As shown in Figure 2, two seals lip inner side surface is respectively equipped with support ring 613, reed is V-shaped, the opening end of reed extends to form junction surface 90, between junction surface with support ring, bolt is connected, the bottom of reed 9 is provided with pull bar 10, the outer end of pull bar is stretched out outside axle sleeve through backbone sealing ring, axle sleeve 2 outer side wall is provided with groove, beacon 11 is arranged in groove by fitting seat 12, lever 13 is also provided with in fitting seat, the outer end, long limit of lever is connected with beacon switch, the minor face of lever 13 is arranged with telescopic cover 14, outer end and the pull bar of telescopic cover are hinged, the outside of pull bar is arranged with guide sleeve 15.
As shown in Figure 3 and Figure 4, the end winding support of hollow rotating shaft 1 has Inner filter net 100, outside hollow rotating shaft 1 end and be provided with outer leaching net 200 between connecting head, Inner filter net 100 spherically structure, outer leaching net 200 is in round platform planar, the miner diameter end of outer leaching net 200 is fixedly connected with hollow rotating shaft by annular connecting base 102, the periphery of Inner filter net 100 is connected with annular connecting base, the inner of connecting head 4 is provided with connecting groove 101, the bigger diameter end of outer leaching net stretches in connecting groove to be formed and is rotationally connected, carbon seal ring 103 is provided with in connecting groove 101, elastic seal ring 104 is provided with outside the bigger diameter end of Inner filter net, fit with the inner ring of carbon seal ring and contact in the outside of elastic seal ring, some Heavy balls 105 are along the circumferential direction evenly fixed with inside the bigger diameter end of Inner filter net 100, outer leaching net 200 surrounds an annular impurity passage 201 with the connecting end of Inner filter net 100, annular connecting base is also provided with and collects filter screen 202, collect filter screen structure ringwise, the impurity that its inside is provided with annular stores chamber 203, frustoconic shape connecting passage 106 is provided with in annular connecting base, the miner diameter end of frustoconic shape connecting passage 106 is communicated with annular impurity passage, and frustoconic shape connecting passage 106 bigger diameter end and impurity store chamber 203 and is communicated with.When hollow rotating shaft rotates, Inner filter net, outer leaching net also synchronous axial system, thus drive Heavy ball to rotate, the centrifugal force produced when Heavy ball rotates is pressed on elastic seal ring, thus makes elastic seal ring and carbon seal ring gluing, sealing; Fluid flows into hollow rotating shaft from connecting head, and Inner filter net can filter the impurity in fluid and be collected in impurity and store in chamber, and outer leaching net effectively prevents the solid particle polluter in fluid from entering in sealing cone, lowers the wearing and tearing of seal lip, improves working life.
The bi-side gluing, sealing of seal lip 610 and circular groove on hollow rotating shaft 1, simultaneously by spring pressure ring, elastic supporting member for supporting optical member is to the radial direction of sealing cone, axial compression, along with use, sealing cone constantly weares and teares, sealing cone still can keep and circular groove sidewall gluing, sealing, and sealing contact surface also increases along with wearing and tearing, sealing effect is better, owing to passing through conical surface seal, even if when therefore wear extent is larger, seal lip also can not be wrinkling, when hollow rotating shaft rotational vibrations, during axial runout, seal lip can at spring pressure ring, adaptive deformation fine setting is produced according to the axial runout of rotating shaft under elastic supporting member for supporting optical member effect, remain sealing, therefore this kind of swivel joint overall sealing performance is good, energy automatic compensation sealing during seal lip wearing and tearing, long service life, along with the wearing and tearing of sealing cone, the opening of reed increases, axially displacement is produced towards axle sleeve bottom reed, when displacement reaches a certain amount of time, now think that seal lip has reached inefficacy edge (namely further wearing and tearing can cause seal failure), pull bar synchronously can produce a displacement identical with reed, the displacement of pull bar is after the amplification of lever, switch under the side pressure of lever long limit in beacon, beacon is opened, thus remind maintenance man, backbone sealing ring will lose efficacy, and need to change immediately, and common swivel joint only has when occurring just can change or often change at regular intervals when leaking, leakage is changed and is easily caused the accident, and because installation environment is different, wearing-in period is also different, and periodic replacement easily causes waste.Therefore, the utility model has following beneficial effect: (1) seal lip can compensate sealing, long service life automatically along with wearing and tearing; (2) Inner filter net can collect the impurity in fluid, and outer leaching net can effectively prevent the solid particle polluter in fluid from entering in sealing cone, lowers the wearing and tearing of seal lip, improves working life; (3) along with wearing and tearing, sealing surface increases gradually, further enhanced leaktightness; (4) when the wear extent of seal lip reaches inefficacy edge, warning is sent by beacon, prompting changing.
Claims (9)
1. a filter-type swivel joint, comprise hollow rotating shaft (1), axle sleeve (2), one end of axle sleeve is provided with end cap (3), the other end of axle sleeve is provided with connecting head (4), bearing (5) is provided with between described hollow rotating shaft and axle sleeve, it is characterized in that, backbone sealing ring (6) is also provided with between described hollow rotating shaft (1) and axle sleeve (2), the end winding support of described hollow rotating shaft (1) has Inner filter net (100), outside hollow rotating shaft (1) end and be provided with outer leaching net (200) between connecting head, one end of described outer leaching net (200) is fixedly connected with hollow rotating shaft by annular connecting base (102), the periphery of described Inner filter net (100) is connected with annular connecting base, the inner of described connecting head (4) is provided with connecting groove (101), the other end of outer leaching net stretches in connecting groove to be formed and is rotationally connected, described outer leaching net (200) surrounds an annular impurity passage (201) with the connecting end of Inner filter net (100), described annular connecting base is also provided with and collects filter screen (202), described collection filter screen structure ringwise, the impurity that its inside is provided with annular stores chamber (203), described impurity stores chamber (203) and is communicated with annular impurity passage (201), carbon seal ring (103) is provided with in described connecting groove (101), elastic seal ring (104) is provided with outside the outer end of described outer leaching net, fitting with the inner ring of carbon seal ring and contact in the outside of elastic seal ring, is along the circumferential direction evenly fixed with some Heavy balls (105) inside the outer end of described outer leaching net (100).
2. filter-type swivel joint according to claim 1, it is characterized in that, described Inner filter net (100) spherically structure, described outer leaching net (200) is in round platform planar, the miner diameter end of outer leaching net is connected with annular connecting base (102), be provided with frustoconic shape connecting passage (106) in described annular connecting base, the miner diameter end of described frustoconic shape connecting passage (106) is communicated with annular impurity passage, and frustoconic shape connecting passage (106) bigger diameter end and impurity store chamber (203) and is communicated with.
3. filter-type swivel joint according to claim 1 and 2, it is characterized in that, described backbone sealing ring comprises skeleton (60), seal ring body (61), the inner ring of described seal ring body (61) extends to form the parallel seal lip of twice (610), the outer side surface inner ring of two seals lip is provided with sealing cone (611), the outer wall of described hollow rotating shaft (1) is provided with circular groove (7), two sides of described circular groove are the conical surface of fitting with sealing cone, gap is formed between the inner ring of seal lip (610) and the bottom land of circular groove, the outer ring sleeve of seal lip (610) is provided with spring pressure ring (612), some elastic supporting member for supporting optical member are evenly provided with between two seals lip inner side surface.
4. filter-type swivel joint according to claim 3, is characterized in that, two side roof parts of described circular groove (7) extend to form and form sealing bulge loop (8).
5. filter-type swivel joint according to claim 3, is characterized in that, described elastic supporting member for supporting optical member is stage clip or reed.
6. filter-type swivel joint according to claim 3, it is characterized in that, described elastic supporting member for supporting optical member is reed (9), two seals lip inner side surface is respectively equipped with support ring (613), described reed is V-shaped, the opening end of reed extends to form junction surface (90), and described junction surface is connected with bolt between support ring.
7. filter-type swivel joint according to claim 6, it is characterized in that, the bottom of described reed (9) is provided with pull bar (10), the outer end of described pull bar is stretched out outside axle sleeve through backbone sealing ring, the outside of described axle sleeve (2) is provided with beacon (11), the outer end of described pull bar is connected with beacon, and when pull bar moves a certain distance to the axle center of axle sleeve, pull bar trigger alert lamp is opened.
8. filter-type swivel joint according to claim 7, it is characterized in that, described axle sleeve (2) outer side wall is provided with groove, beacon is arranged in groove by fitting seat (12), lever (13) is also provided with in fitting seat, the outer end, long limit of lever is connected with beacon switch, and minor face and the pull bar of lever are hinged.
9. filter-type swivel joint according to claim 8, is characterized in that, the minor face of described lever (13) is arranged with telescopic cover (14), and outer end and the pull bar of described telescopic cover are hinged, and the outside of described pull bar is arranged with guide sleeve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571860.6U CN204176198U (en) | 2014-09-30 | 2014-09-30 | Filter-type swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571860.6U CN204176198U (en) | 2014-09-30 | 2014-09-30 | Filter-type swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204176198U true CN204176198U (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420571860.6U Active CN204176198U (en) | 2014-09-30 | 2014-09-30 | Filter-type swivel joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN204176198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455851A (en) * | 2014-09-30 | 2015-03-25 | 杭州优能特旋转接头制造厂 | Rotating connector capable of filtering impurities |
| CN111928036A (en) * | 2020-09-20 | 2020-11-13 | 滕州市江晟机械制造有限公司 | Filter type rotary joint |
-
2014
- 2014-09-30 CN CN201420571860.6U patent/CN204176198U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455851A (en) * | 2014-09-30 | 2015-03-25 | 杭州优能特旋转接头制造厂 | Rotating connector capable of filtering impurities |
| CN104455851B (en) * | 2014-09-30 | 2016-06-29 | 杭州优能特旋转接头制造厂 | A kind of swivel joint of energy impurity screening |
| CN111928036A (en) * | 2020-09-20 | 2020-11-13 | 滕州市江晟机械制造有限公司 | Filter type rotary joint |
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