CN210890080U - Follow-up rotary sealing structure for liquid outlet pipe shaft - Google Patents
Follow-up rotary sealing structure for liquid outlet pipe shaft Download PDFInfo
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- CN210890080U CN210890080U CN201920395912.1U CN201920395912U CN210890080U CN 210890080 U CN210890080 U CN 210890080U CN 201920395912 U CN201920395912 U CN 201920395912U CN 210890080 U CN210890080 U CN 210890080U
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- packing box
- outlet pipe
- liquid outlet
- pipe shaft
- bearing bush
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Abstract
The utility model discloses a play liquid hollow shaft follow-up rotary seal structure especially relates to tilting pan vacuum filter's filter disc part. In order to solve the problems that the long-term stable sealing is difficult to realize and the frequent periodical maintenance is needed due to the abrasion of a bearing bush and the influence of a filtrate connecting pipe in the prior art, the utility model provides a follow-up rotary sealing structure of a liquid outlet pipe shaft, which consists of the liquid outlet pipe shaft, the bearing bush, a bearing seat, an integrated packing box, a sealing element, a double-support ring, a gasket and a single-support ring; the bearing bush is arranged in the bearing block, the liquid outlet pipe shaft is arranged in the bearing bush and extends out of one section, the sealing element, the double-support ring, the gasket and the single-support ring are sequentially arranged in an annular channel formed by the liquid outlet pipe shaft and the integrated packing box, and the integrated packing box consists of a connecting pipe, a packing box body, a screw, a pressing plate, a stud, a distance sleeve and a nut, so that the purpose that the liquid pumping pipe shaft and the integrated packing box are not influenced by the abrasion of the bearing bush in a follow-up manner, and the long-term.
Description
Technical Field
The utility model belongs to the solid-liquid separation equipment field especially relates to tilting pan vacuum filter's filter disc part.
Background
The two ends of the filter disc of the tilting disc vacuum filter are provided with tilting shafts which are supported by bearing seats and perform tilting action, filtrate filtered by the filter disc is collected to a bottom flow passage and flows out from the inner tilting shaft, the inner tilting shaft is a liquid outlet pipe shaft, and the filtrate enters a filtrate connecting pipe to a distribution head after passing through the liquid outlet pipe shaft. The filtrate connecting pipe does not rotate along with the liquid outlet pipe shaft, so the filtrate connecting pipe and the liquid outlet pipe shaft need to be sealed in a rotating way. The existing sealing structure is that a filler seal is arranged after a liquid outlet pipe shaft extends out of a bearing seat, and the filler is compressed by a filtrate connecting pipe flange, so that the sealing mechanism needs 3 flanges, namely the flanges at two ends of a stuffing box and the filtrate connecting pipe flange for compression. The bearing bush is worn to cause the liquid outlet pipe shaft to sink in use, the packing box is fixed on the bearing block through the flange, the packing is easy to leak due to different upper and lower pressures, on the other hand, the sealing pressure is provided by the fastening piece of the pressing end connecting flange, the stress of the filtrate connecting pipe is provided by the flange, the sealing pressure changes along with the shaking of the filtrate connecting pipe, the sealing is easy to be unstable, the wear compensation is not easy to realize, and therefore the bearing bush needs to be checked regularly and the sealing packing needs to be replaced. A more sophisticated rotary seal structure is therefore required instead.
SUMMERY OF THE UTILITY MODEL
In order to solve the difficult long-term stable seal of receiving bearing bush wearing and tearing and filtrating takeover influence that prior art exists, need frequently regularly maintain the problem, the utility model provides a go out liquid hollow shaft follow-up rotary seal structure adopts the integrated form gland packing and the drawing liquid hollow shaft follow-up connection structure who takes the takeover to reach and not receive the bearing bush wearing and tearing to influence, can provide long-term stable seal, and the part is light purpose again.
The utility model provides a technical scheme that its technical problem adopted is: a follow-up rotary sealing structure of a liquid outlet pipe shaft comprises the liquid outlet pipe shaft, a bearing bush, a bearing seat, an integrated packing box, a sealing element, a double support ring, a gasket and a single support ring; the integrated stuffing box is arranged on the liquid outlet side of the bearing block, floats on the liquid outlet pipe shaft and limits the axial movement amount of the bearing bush. The sealing element, the double supporting rings, the gasket and the single supporting ring are arranged in a packing cavity formed by the liquid outlet pipe shaft and the integrated packing box.
In the liquid outlet pipe shaft follow-up rotary sealing structure, the integrated packing box consists of a connecting pipe, a packing box main body, a screw, a pressing plate, a stud, a distance sleeve and a nut; the connecting pipe is welded on the liquid outlet side of the filler box main body; the pressure plate is fixed at the front end of the flange of the stuffing box main body by screws.
According to the liquid outlet pipe shaft follow-up rotary sealing structure, the outer diameter D of the distance sleeve is high H, the flange of the packing box main body of the integrated packing box is provided with a plurality of connecting holes with the diameter D, the number of the holes is preferably more than or equal to 3, the requirements that D is more than D +1, H is more than H and clearance fit are met, and the purpose that the integrated packing box can be axially limited on the bearing seat and can float up and down after being installed is achieved.
The liquid outlet pipe shaft follow-up rotary sealing structure is characterized in that the sealing elements are multiple, preferably 3, and are mounted in a face-to-face and back-to-back combination mode to achieve the purpose of bidirectional sealing; the thickness of the gasket delta is adjusted according to the sealing design pressure.
The utility model relates to a play liquid hollow shaft follow-up rotary seal structure realizes not influenced by axle bush wearing and tearing through above-mentioned mode, can provide long-term stable seal, and the part is light purpose again.
Drawings
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of the utility model 04 integrated stuffing box;
fig. 3 is a schematic view of the 16 distance sleeve of the present invention.
In the figure, 01, a liquid outlet pipe shaft, 02, a bearing bush, 03, a bearing seat, 04, an integrated stuffing box, 05, a sealing piece, 06, a double support ring, 07, a gasket, 08, a single support ring, 11, a connecting pipe, 12, a stuffing box body, 13, a screw, 14, a pressure plate, 15, a stud, 16, a distance sleeve and 17, a nut are arranged.
Detailed Description
The rotary sealing structure of the embodiment comprises a liquid outlet pipe shaft 01, a bearing bush 02, a bearing seat 03, an integrated packing box 04, a sealing element 05, a double support ring 06, a gasket 07 and a single support ring 08; the integrated packing box 04 is limited at the liquid outlet side of the bearing seat 03 by a stud 15, a distance sleeve 16 and a nut 17, the bearing bush 02 is blocked and floats on the liquid outlet pipe shaft 01, and the sealing element 05, the double support ring 06, the gasket 07 and the single support ring 07 are arranged in a packing cavity formed by the liquid outlet pipe shaft 01 and the integrated packing box 04; the outer diameter D and the height H of the distance sleeve 16, the flange thickness H of the stuffing box main body 12 and the diameter D of 4 open holes need to satisfy the condition that D is more than D +1, H is more than H and the clearance fit is realized; the sealing member is 3 pieces and is installed in a face-to-face and back-to-back combination mode.
The above description is only the specific embodiment of the present invention, but the device selection of the present invention is not limited thereto, and any changes or modifications within the scope of the present invention are covered by the following claims.
Claims (3)
1. A follow-up rotary sealing structure of a liquid outlet pipe shaft is composed of the liquid outlet pipe shaft (01), a bearing bush (02), a bearing block (03), an integrated packing box (04), a sealing element (05), a double-support ring (06), a gasket (07) and a single-support ring (08); the bearing bush (02) is arranged in a bearing block (03), the liquid outlet pipe shaft (01) is arranged in the bearing bush (02) and extends out of one section, and the sealing element (05), the double-support ring (06), the gasket (07) and the single-support ring (08) are sequentially arranged in a ring channel formed by the liquid outlet pipe shaft (01) and the integrated packing box (04), and the bearing bush integrated packing box is characterized in that the integrated packing box (04) consists of a connecting pipe (11), a packing box main body (12), a screw (13), a pressing plate (14), a stud (15), a distance sleeve (16) and a nut (17).
2. The liquid outlet pipe shaft follow-up rotary sealing structure as claimed in claim 1, wherein a plurality of holes with diameter D are formed in the thickness H of the joint of the front end of the packing box main body (12) of the integrated packing box (04), the number of the holes is more than or equal to 3, and the rear end of the integrated packing box (04) is welded with the connecting pipe (11); the pressure plate (14) is fixed on the front end of the stuffing box main body (12) by a screw (13); the distance sleeve (16) is arranged in a hole with the diameter D of the stuffing box main body (12), and the outer diameter D and the height H of the distance sleeve need to satisfy the condition that D is more than D +1, H is more than H and the distance sleeve is in clearance fit.
3. The outlet pipe shaft follow-up rotary sealing structure as claimed in claim 1, wherein the sealing member (05) is provided with more than or equal to 3 pieces and is installed in a face-to-face and back-to-back combination mode; the thickness of the gasket (07) delta is adjusted according to the sealing design pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395912.1U CN210890080U (en) | 2019-03-27 | 2019-03-27 | Follow-up rotary sealing structure for liquid outlet pipe shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395912.1U CN210890080U (en) | 2019-03-27 | 2019-03-27 | Follow-up rotary sealing structure for liquid outlet pipe shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890080U true CN210890080U (en) | 2020-06-30 |
Family
ID=71311630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920395912.1U Active CN210890080U (en) | 2019-03-27 | 2019-03-27 | Follow-up rotary sealing structure for liquid outlet pipe shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210890080U (en) |
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2019
- 2019-03-27 CN CN201920395912.1U patent/CN210890080U/en active Active
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