CN202789490U - Piston of concrete transporting cylinder - Google Patents
Piston of concrete transporting cylinder Download PDFInfo
- Publication number
- CN202789490U CN202789490U CN 201220411823 CN201220411823U CN202789490U CN 202789490 U CN202789490 U CN 202789490U CN 201220411823 CN201220411823 CN 201220411823 CN 201220411823 U CN201220411823 U CN 201220411823U CN 202789490 U CN202789490 U CN 202789490U
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- CN
- China
- Prior art keywords
- piston
- sealing
- concrete
- seal ring
- 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 - Lifetime
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Abstract
The utility model relates to a piston of a concrete transporting cylinder. The piston comprises a piston body and a sealing piece, wherein the piston body is in close fit with the sealing piece; the sealing piece is provided with a sealing ring 1 and a sealing ring 2; the outer diameter of the sealing ring 1 is larger than that of the sealing ring 2; the wall thickness of the sealing ring 1 and the sealing ring 2 is 4-6mm; the sealing piece is made from a high polymer material; and the axial length of the piston body is 200-220mm. The piston has the advantages of enabling sealing to be reliable and service life to be long, prolonging the service lives of transported concrete and the concrete transporting cylinder as well as the repair cycle of equipment, enhancing the intact rate and the utilization rate of the equipment, reducing cost and improving economic benefit.
Description
Technical field
The utility model relates to the operation and maintenance that the concrete pump truck concrete is carried cylinder, relates in particular to a kind of concrete conveying cylinder piston.
Background technique
The concrete piston of conveying cylinder of existing concrete pump truck all is to adopt metal piston body and conventional polyurethanes or canvas filler rubber as seal ring.Reach in the concrete pumping procedure of 16Mpa even 20MPa at high pressure, the corrosion of fluidised form concrete and wearing and tearing cause piston to produce gap and linear progressively increasing with carrying the inside wall of cylinder, usually way is exactly the piston seal that more renews, cylinder body can only be scrapped when itself and casing wall wear-out failure chromium coating, more short-period replacing piston not only increases the waste of human and material resources, has also affected the intact utilization ratio of machinery.Cause some wastes and environmental pollution each the replacing in the Piston Process simultaneously, thereby affect the economic benefit of enterprise.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model provides a kind of concrete conveying cylinder piston, makes the more reliable longer service life of sealing, increases concrete and carries concrete working life.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of concrete conveying cylinder piston comprises piston body, Sealing, and piston body and Sealing closely cooperate, and described Sealing is provided with seal ring one and seal ring two; The external diameter of described seal ring one is greater than the external diameter of seal ring two; The wall thickness of described seal ring one and seal ring two is 15mm-20mm; Described Sealing is made by macromolecular material; Described piston body axial length is 200mm-220mm.
Compared with prior art, the beneficial effects of the utility model are:
Make the more reliable longer service life of sealing, increase concrete and carry concrete working life; Also prolonged simultaneously concrete conveying cylinder working life, the extension device repair cycle, improved the intact utilization ratio of equipment, reduce cost and increase economic efficiency.
Description of drawings
Fig. 1 is seal configuration schematic representation of the present utility model.
Fig. 2 is piston body structure schematic representation of the present utility model
Among the figure: 1-seal ring one 2-seal ring two 3-piston bodies.
Embodiment
Below in conjunction with Figure of description the utility model is described in detail, but should be noted that enforcement of the present utility model is not limited to following mode of execution.
See Fig. 1, Fig. 2, a kind of concrete conveying cylinder piston comprises piston body 3, Sealing, and piston body 3 closely cooperates with Sealing, and described Sealing is provided with seal ring 1 and seal ring 22; The external diameter of described seal ring 1 is greater than the external diameter of seal ring 22; The wall thickness of described seal ring 1 and seal ring 22 is 4mm-6mm; Described Sealing is made by macromolecular material; Described piston axial length is 200mm-220mm.
Take 37m concrete pump truck as example, original seal outer diameter is φ 230mm, for guaranteeing the normal operation of equipment, set up the seal ring that the twice external diameter is φ 230mm in the Sealing outside, wherein the external diameter of seal ring 22 is φ 230mm-φ 230+0.25mm, and the external diameter of seal ring 1 is φ 230+0.50mm-φ 230+0.75mm.Improve at the same time piston, piston width increased 9mm-11mm, prolong accordingly bolt length, make between the member connect more solid and reliable.
For the conveying cylinder body of experience wear, cylinder bore is carried in actual mapping, then the piston body and the Sealing that match of processing.
Adopt the enhancement mode polyurethane material to make Sealing, polyurethane elastomer (PUE) is high temperature resistant, the super wear-resisting macromolecular material of a class that is formed by polymer polyatomic alcohol and isonitrile ammonia ester and crosslinking agent addition polymerization.
The utility model makes the more reliable longer service life of sealing, increases concrete and carries concrete working life; Also prolonged simultaneously concrete conveying cylinder working life, the extension device repair cycle, improved the intact utilization ratio of equipment, reduce cost and increase economic efficiency.
Claims (5)
1. a concrete conveying cylinder piston is characterized in that, comprises piston body, Sealing, and piston body and Sealing closely cooperate, and described Sealing is provided with seal ring one and seal ring two.
2. a kind of concrete conveying cylinder piston according to claim 1 is characterized in that the external diameter of described seal ring one is greater than the external diameter of seal ring two.
3. a kind of concrete conveying cylinder piston according to claim 1 is characterized in that, the wall thickness of described seal ring one and seal ring two is 15mm-20mm.
4. a kind of concrete conveying cylinder piston according to claim 1 is characterized in that described Sealing is made by macromolecular material.
5. a kind of concrete conveying cylinder piston according to claim 1 is characterized in that, described piston body axial length is 200mm-220mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411823 CN202789490U (en) | 2012-08-17 | 2012-08-17 | Piston of concrete transporting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411823 CN202789490U (en) | 2012-08-17 | 2012-08-17 | Piston of concrete transporting cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789490U true CN202789490U (en) | 2013-03-13 |
Family
ID=47816761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220411823 Expired - Lifetime CN202789490U (en) | 2012-08-17 | 2012-08-17 | Piston of concrete transporting cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053981A (en) * | 2018-08-02 | 2018-12-21 | 衢州吉成新材料股份有限公司 | A kind of concrete piston material, high abrasion concrete piston for concrete pump and preparation method thereof |
-
2012
- 2012-08-17 CN CN 201220411823 patent/CN202789490U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053981A (en) * | 2018-08-02 | 2018-12-21 | 衢州吉成新材料股份有限公司 | A kind of concrete piston material, high abrasion concrete piston for concrete pump and preparation method thereof |
| CN109053981B (en) * | 2018-08-02 | 2021-03-19 | 浙江吉成新材股份有限公司 | Concrete piston material, concrete piston for high-abrasion-resistance concrete pump and preparation method of concrete piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191122 Address after: 114000 Anshan province Liaoning City Mountain Road No. 105 building materials Patentee after: CHINA THIRD METALLURGICAL GROUP Co.,Ltd. Address before: Bayuquan District of Liaoning city in Yingkou province 115007 big Dong Tun Cun Patentee before: China Third Metallurgical Group (Yingkou) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |