CN204400520U - Crane hoisting drg sealing member - Google Patents
Crane hoisting drg sealing member Download PDFInfo
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- CN204400520U CN204400520U CN201520034513.4U CN201520034513U CN204400520U CN 204400520 U CN204400520 U CN 204400520U CN 201520034513 U CN201520034513 U CN 201520034513U CN 204400520 U CN204400520 U CN 204400520U
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- seal ring
- elastic body
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- pressure
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Abstract
The utility model relates to crane hoisting drg sealing member, comprise seal ring, elastic body, it is characterized in that the seal is by the flexible body of seal ring inner ring sleeve, seal ring is polyurethane material, elastic body is quality of rubber materials, the arranged outside of seal ring is fluted, the hardness of seal ring is higher, system pressure can not be extruded when increasing, there is less friction coefficient simultaneously, greatly reduce friction drag during system works, elastic body transmission of pressure is responsive, there is good dynamic and static sealing effect, time static, elastomeric pre compressed magnitude produces predetermincd tension, ensure sealing effectiveness, time dynamic, high pressure oil makes elastic body produce linear deformation, pressure is passed to seal ring, ensure sealing effectiveness.The beneficial effects of the utility model are, structure is simple, and in use procedure, friction drag is little, and sealing effectiveness is good.
Description
Technical field
The utility model relates to a kind of hermetically-sealed construction for crane hoisting drg, specifically a kind of crane hoisting drg sealing member solving drg seal failure and extend no-failure life aspect.
Background technology
Crane hoisting drg is one of critical component in crane hoisting mechanism, it acts frequently, reciprocating travel is short, current packing element uses rubber "O"-ring or star-like circle, because rubber hardness is low, often occur the phenomenon that bites, shearing of simultaneously easily rolling in fitting process, finally causes seal failure, cause system leak, accident feedback rates is high causes serious economic loss to main engine plants.
Summary of the invention
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, a kind of crane hoisting drg sealing member is provided, the utility model solves the technical scheme that its technical matters adopts: structure of the present utility model comprises seal ring, elastic body, it is characterized in that the seal is by the flexible body of seal ring inner ring sleeve, seal ring is polyurethane material, elastic body is quality of rubber materials, the arranged outside of seal ring is fluted, the hardness of seal ring is higher, system pressure can not be extruded when increasing, there is less friction coefficient simultaneously, greatly reduce friction drag during system works, elastic body transmission of pressure is responsive, there is good dynamic and static sealing effect, time static, elastomeric pre compressed magnitude produces predetermincd tension, ensure sealing effectiveness, time dynamic, high pressure oil makes elastic body produce linear deformation, pressure is passed to seal ring, ensure sealing effectiveness.
The beneficial effects of the utility model are, structure is simple, and in use procedure, friction drag is little, and sealing effectiveness is good.
Accompanying drawing explanation
Fig. 1: the utility model embodiment cross-sectional view.
Fig. 2: the utility model plan structure schematic diagram.
Fig. 3: the utility model side elevational cross-section structural representation.
In figure: seal ring 1, elastic body 2.
Detailed description of the invention
Illustrate with reference to accompanying drawing and following concrete detailed description is done to the utility model, as shown in drawings, structure of the present utility model comprises seal ring 1, elastic body 2, it is characterized in that the seal is by the flexible body 2 of seal ring 1 inner ring sleeve, seal ring 1 is polyurethane material, elastic body 2 is quality of rubber materials, the arranged outside of seal ring 1 is fluted, the hardness of seal ring 1 is higher, system pressure can not be extruded when increasing, there is less friction coefficient simultaneously, greatly reduce friction drag during system works, elastic body 2 transmission of pressure is responsive, there is good dynamic and static sealing effect, time static, the pre compressed magnitude of elastic body 2 produces predetermincd tension, ensure sealing effectiveness, time dynamic, high pressure oil makes elastic body 2 produce linear deformation, pressure is passed to seal ring 1, ensure sealing effectiveness.
Embodiment recited above is only be described preferred implementation of the present utility model; not design of the present utility model and scope are limited; under the prerequisite not departing from the utility model design concept; the various modification that in this area, common engineering staff make the technical solution of the utility model and improvement; protection domain of the present utility model all should be fallen into; the technology contents of the utility model request protection, all records in detail in the claims.
Claims (1)
1. crane hoisting drg sealing member, comprise seal ring (1), elastic body (2), it is characterized in that the seal is by the flexible body of seal ring (1) inner ring sleeve (2), seal ring (1) is polyurethane material, elastic body (2) is quality of rubber materials, and the arranged outside of seal ring (1) is fluted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034513.4U CN204400520U (en) | 2015-01-19 | 2015-01-19 | Crane hoisting drg sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034513.4U CN204400520U (en) | 2015-01-19 | 2015-01-19 | Crane hoisting drg sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204400520U true CN204400520U (en) | 2015-06-17 |
Family
ID=53424399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520034513.4U Active CN204400520U (en) | 2015-01-19 | 2015-01-19 | Crane hoisting drg sealing member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204400520U (en) |
-
2015
- 2015-01-19 CN CN201520034513.4U patent/CN204400520U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |