CN201896739U - Seal sleeve of piston rod of differential pressure type plunger pump - Google Patents
Seal sleeve of piston rod of differential pressure type plunger pump Download PDFInfo
- Publication number
- CN201896739U CN201896739U CN2010206433136U CN201020643313U CN201896739U CN 201896739 U CN201896739 U CN 201896739U CN 2010206433136 U CN2010206433136 U CN 2010206433136U CN 201020643313 U CN201020643313 U CN 201020643313U CN 201896739 U CN201896739 U CN 201896739U
- Authority
- CN
- China
- Prior art keywords
- seal sleeve
- ring
- differential pressure
- pressure type
- plunger pump
- 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
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a seal sleeve of a piston rod of a differential pressure type plunger pump which belongs to a seal element, and aims to provide an improved seal sleeve of the piston rod of the differential pressure type plunger pump, which has a good sealing effect and a long operation cycle. The seal sleeve comprises a seal sleeve body, two internal sealing rings arranged at the inner ring of the seal sleeve body, and an external sealing ring arranged at the external ring of the seal sleeve body, wherein the intersection point of the outer ring and the end surface of the seal sleeve body (6) is provided with a ring slot, and an axial sealing ring (4) is arranged in the ring slot. The utility model completely overcomes the defects of poor sealing effect and easy leakage of the original seal sleeve, the maintenance frequency is reduced, the maintenance cost is saved, and long-term normal operation of equipment is ensured. The seal sleeve is an ideal element used for sealing the piston rod of the differential pressure type plunger pump.
Description
Technical field: the utility model relates to a kind of seal element, relates in particular to a kind of differential pressure type plunger pump piston rod modified model stuffing box gland.
Background technique: the differential pressure type plunger pump is the differential pump that chemical industry is used to carry various liquid mediums.At present, the exterior seal ring that mainly between the piston rod of differential pressure type plunger pump and the hydraulic cylinder relies on the stuffing box gland that is enclosed within on the piston rod and compressed by cylinder cap, is located at two inner seal rings of sealing cover inner ring and is located at sealing cover outer ring is realized sealing.Because exterior seal ring mainly is to radially the sealing of stuffing box gland, and piston rod mainly bears axial pressure, so sealing effect is unsatisfactory, usually because of the maintenance of leakage frequent shutdown, can not guarantee equipment operation continuously for a long time.
Summary of the invention: at the above-mentioned defective that exists in the prior art, the utility model aims to provide a kind of good sealing effect, long differential pressure type plunger pump rod seal cover of operation period.
To achieve these goals, the utility model by the following technical solutions: it comprises the stuffing box gland body, is located at two inner seal rings of sealing cover body inner ring and is located at the exterior seal ring that sealing is overlapped the body outer ring; Outer ring and end face intersection at the stuffing box gland body are provided with annular groove, are provided with axial sealing ring in this annular groove.
Compared with the prior art, the utility model is owing to adopted technique scheme, on the basis of conventional construction, increased an axial sealing ring, therefore thoroughly overcome original stuffing box gland sealing effect defective poor, that leak easily, both reduced frequency of maintenance, saved maintenance cost, guaranteed again that the equipment long-time continuous normally moved.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure: dust-proof seal ring 1 inner seal ring 2 exterior seal rings 3 axial sealing rings 4 hydraulic cylinders 5 stuffing box gland bodies 6 piston rods 7
Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
As shown in Figure 1: the stuffing box gland body 6 that is enclosed within on the piston rod 7 is pressed on the cylinder body by hydraulic cylinder 5, inner ring at stuffing box gland body 6 is provided with two inner seal rings 2, is provided with an exterior seal ring 3 that plays the radial seal effect in the stage casing, outer ring of sealing cover body, be provided with dust-proof seal ring 1 in the upper-end surface of stuffing box gland body 6, intersection in sealing cover body outer ring and lower end surface is provided with annular groove, is provided with axial sealing ring 4 in this annular groove.
Claims (1)
1. a differential pressure type plunger pump rod seal cover comprises the stuffing box gland body, is located at two inner seal rings of sealing cover body inner ring and is located at the exterior seal ring that sealing is overlapped the body outer ring; It is characterized in that: outer ring and end face intersection at stuffing box gland body (6) are provided with annular groove, are provided with axial sealing ring (4) in this annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206433136U CN201896739U (en) | 2010-12-06 | 2010-12-06 | Seal sleeve of piston rod of differential pressure type plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206433136U CN201896739U (en) | 2010-12-06 | 2010-12-06 | Seal sleeve of piston rod of differential pressure type plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201896739U true CN201896739U (en) | 2011-07-13 |
Family
ID=44254647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206433136U Expired - Fee Related CN201896739U (en) | 2010-12-06 | 2010-12-06 | Seal sleeve of piston rod of differential pressure type plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201896739U (en) |
-
2010
- 2010-12-06 CN CN2010206433136U patent/CN201896739U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204164550U (en) | A kind of pipeline extension device of triple seal structure | |
| CN103016741A (en) | Mixing machine shaft end sealing device | |
| CN204164340U (en) | Built-up piston seal arrangement | |
| CN204647315U (en) | A kind of high voltage-resistant bi-directional rotating seal ring peculiar to vessel | |
| CN201896739U (en) | Seal sleeve of piston rod of differential pressure type plunger pump | |
| CN102278468A (en) | Sealed hydraulic cylinder | |
| CN202833993U (en) | Sealing device used on output shaft of reducer | |
| CN206257275U (en) | A kind of piston rod sealing system | |
| CN205277971U (en) | Novel roller hydro -cylinder of cold rolling unit | |
| CN201836152U (en) | Guide sleeve of hydraulic oil cylinder | |
| CN103851200A (en) | Hydraulic sealing part | |
| CN205479352U (en) | A oil blanket for rotary shaft seal | |
| CN201934780U (en) | Modified filler pressing sleeve device | |
| CN203847474U (en) | High-pressure single-acting self-compensating and thin-wall hydraulic cylinder | |
| CN203796609U (en) | Sealing component for pump | |
| CN203847467U (en) | Sealing structure of narrow piston hydraulic cylinder | |
| CN203686338U (en) | Novel anti-torsion structure of corrugated pipe | |
| CN203472985U (en) | Positioning and sealing structure for upper end of gear and rack type steering engine valve | |
| CN202883546U (en) | Compound sealing structure for air cylinder end face | |
| CN202040324U (en) | Sealing ring with grooves | |
| CN201916181U (en) | Long-acting non-leakage plunger piston sealed structure of plunger piston metering pump | |
| CN205533539U (en) | Hydraulic cylinder's leak protection structure | |
| CN203822743U (en) | High-speed high-pressure long-stroke double-acting hydraulic cylinder | |
| CN204357824U (en) | A kind of band X sealing configuration oil cylinder | |
| CN204573307U (en) | A kind of butterfly buffer valve damping hydraulic cylinder side valve axle stuffing seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20111206 |