CN203421169U - Sealing mechanism of stirring shaft of concrete pump - Google Patents
Sealing mechanism of stirring shaft of concrete pump Download PDFInfo
- Publication number
- CN203421169U CN203421169U CN201320392112.7U CN201320392112U CN203421169U CN 203421169 U CN203421169 U CN 203421169U CN 201320392112 U CN201320392112 U CN 201320392112U CN 203421169 U CN203421169 U CN 203421169U
- Authority
- CN
- China
- Prior art keywords
- stirring shaft
- concrete pump
- sealing mechanism
- sealing
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a sealing mechanism of a stirring shaft of a concrete pump. The sealing mechanism of the stirring shaft of the concrete pump comprises the stirring shaft and a bearing block, wherein a J-shaped scraper seal is arranged on the end portion of one side, close to a hopper, of the stirring shaft, an oil filling hole which leads to the stirring shaft is formed in the bearing block, two sealing rings are arranged on the two sides of the oil filling hole respectively, and the one-way sealing ring is arranged on one side close to the J-shaped scraper seal. The sealing mechanism of the stirring shaft of the concrete pump is good in sealing performance, and can effectively prevent concrete grout from entering a shaft end, reliability of a mixer is greatly improved, and the service life of the mixer is greatly prolonged.
Description
Technical field
The utility model relates to a kind of sealing mechanism of concrete pump stirring shaft, belongs to concrete pump stirrer technical field of structures.
Background technique
In the hopper of concrete pump, be all provided with stirring apparatus, wherein, stirring shaft be by bearing block support on hopper side wall, stirring shaft is by fluid motor-driven.In order to prevent that the concrete in hopper from entering between bearing support and stirring shaft, between stirring shaft and bearing support, need to arrange sealing gasket, in actual use, find, after work a period of time, sealing gasket easily causes wearing and tearing, the sealability of sealing gasket declines rapidly, and concrete grout leaks in axle head, causes the wearing and tearing of bearing.Therefore, improving reliability and the working life of concrete pump stirring shaft sealing configuration, is technical problem urgently to be resolved hurrily in stirrer industry.
Summary of the invention
The utility model, for above-mentioned problems of the prior art, provides a kind of sealing mechanism of concrete pump stirring shaft, improves stirrer working life.
The technical solution adopted in the utility model is as follows: a kind of concrete pump stirring shaft sealing mechanism, comprise stirring shaft and bearing support, stirring shaft is provided with J-shaped dust ring by the end of hopper one side, bearing support is provided with the oil hole that leads to stirring shaft, oil hole both sides are respectively provided with a seal ring, by J type dust ring one side, are wherein one-way sealing seal.
Further, described oil hole is bag backbone sealing ring in FB type by the one-way sealing seal of J type dust ring one side.The seal ring of oil hole opposite side is YX RunddichtringO.
The utility model concrete pump stirring shaft sealing mechanism is respectively provided with a seal ring in bearing support oil hole both sides, wherein above one be one-way sealing seal.When oil constantly injects from oilhole, on the one hand lubricated stirring shaft, oil constantly can make oil pressure raise toward injection between two seal rings on the other hand, when pressure is raised to certain value, oil can be by one-way sealing seal, arrive J type dust ring, form the oil pressure film outwards pushing uniformly, when outside concrete produces extruding to J RunddichtringO, oil pressure film pressure forward will produce and contend with it, effectively resist concrete invasion, thereby make concrete cannot enter between axle and bearing support, for the normal operation of axle provides long-term assurance, the life-span of stirring mechanism is significantly extended.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model comprises stirring shaft 1 and bearing support 4, stirring shaft 1 is provided with J-shaped dust ring 7 by the end of hopper 2 one sides, bearing support 4 is provided with the oil hole 3 that leads to stirring shaft 1, oil hole 3 both sides are respectively provided with a seal ring, by J type dust ring 7 one sides, be wherein one-way sealing seal, what in the present embodiment, adopt is bag backbone sealing ring 6 in FB type.The seal ring of oil hole opposite side is YX RunddichtringO 5.YX RunddichtringO 5 stops the oil being input into flow backward, to produce oil pressure film forward, in FB type, bag backbone sealing ring 6 can only flow forward oil, can not reflux, make oil pressure film jointly prevent concrete intrusion together with J type dust ring, guarantee that stirring shaft can run well for a long time.
Claims (3)
1. a concrete pump stirring shaft sealing mechanism, comprise stirring shaft and bearing support, it is characterized in that: stirring shaft is provided with J-shaped dust ring by the end of hopper one side, bearing support is provided with the oil hole that leads to stirring shaft, oil hole both sides are respectively provided with a seal ring, by J type dust ring one side, are wherein one-way sealing seal.
2. concrete pump stirring shaft sealing mechanism as claimed in claim 1, is characterized in that: described oil hole is bag backbone sealing ring in FB type by the one-way sealing seal of J type dust ring one side.
3. concrete pump stirring shaft sealing mechanism as claimed in claim 1, is characterized in that: the seal ring of oil hole opposite side is YX RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320392112.7U CN203421169U (en) | 2013-07-03 | 2013-07-03 | Sealing mechanism of stirring shaft of concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320392112.7U CN203421169U (en) | 2013-07-03 | 2013-07-03 | Sealing mechanism of stirring shaft of concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421169U true CN203421169U (en) | 2014-02-05 |
Family
ID=50020268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320392112.7U Expired - Fee Related CN203421169U (en) | 2013-07-03 | 2013-07-03 | Sealing mechanism of stirring shaft of concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819240A (en) * | 2021-08-30 | 2021-12-21 | 徐州徐工施维英机械有限公司 | Stirring shaft end structure for pumping mechanism of pumping machine |
-
2013
- 2013-07-03 CN CN201320392112.7U patent/CN203421169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819240A (en) * | 2021-08-30 | 2021-12-21 | 徐州徐工施维英机械有限公司 | Stirring shaft end structure for pumping mechanism of pumping machine |
| CN113819240B (en) * | 2021-08-30 | 2024-03-12 | 徐州徐工施维英机械有限公司 | Stirring shaft end structure for pumping mechanism of pumping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20140703 |
|
| EXPY | Termination of patent right or utility model |