CN201874797U - Center pull rod sealing device of drill pump - Google Patents
Center pull rod sealing device of drill pump Download PDFInfo
- Publication number
- CN201874797U CN201874797U CN2010205709948U CN201020570994U CN201874797U CN 201874797 U CN201874797 U CN 201874797U CN 2010205709948 U CN2010205709948 U CN 2010205709948U CN 201020570994 U CN201020570994 U CN 201020570994U CN 201874797 U CN201874797 U CN 201874797U
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- China
- Prior art keywords
- pull rod
- center pull
- drilling pump
- oil
- oil seal
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of center pull rod sealing devices, and provides a center pull rod sealing device of a drill pump. The center pull rod sealing device of the drill pump comprises a center pull rod of the drill pump, an oil baffle plate, a corrugated sleeve, an oil seal box and an oil seal, wherein the left end of the corrugated sleeve is fixedly mounted on the center pull rod of the drill pump, and the right end of the corrugated sleeve is fixedly mounted with the oil seal box; the oil seal box is sleeved on the center pull rod of the drill pump; the outer end of the oil seal box is fixedly mounted with the oil baffle plate; a clearance is reserved between the inner end of the oil seal box and the center pull rod of the drill pump; the oil seal is mounted in the oil seal box; a baffle plate capable of retaining the oil seal is installed at the right end of the oil seal box; and the oil seal is sleeved on and seals the center pull rod of the drill pump. The sealing device provided by the utility model has the advantages of reasonable and compact structure and convenience in use; and by the adoption of a combined sealing structure formed by the corrugated sleeve and the dual-lip oil seal, the combined seal on the center pull rod is realized, and the sealing effect is good, thereby improving the operational reliability of the drill pump, and effectively preventing the waste and the environmental pollution caused by the ineffectiveness of a lubricant.
Description
Technical field
The utility model relates to center pull rod seal arrangement technical field, is a kind of drilling pump center pull rod seal arrangement.
Background technique
Drilling pump is widely used in the oil and gas well drilling scene, often runs into the leakage of oil of drilling pump center pull rod in actual use, or cooling water, mud enter the drilling pump power end and cause faults such as lubricant oil inefficacy, has had a strong impact on carrying out smoothly that drilling well is produced.In the known technology, sealing improves to original drilling pump center pull rod though also take radiation fins, also only relies on radiation fins to play single sealing effect, and radiation fins is installed in the power end outside is damaged easily.
Summary of the invention
The utility model provides a kind of drilling pump center pull rod seal arrangement, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the poorly sealed problem of drilling pump center pull rod.
The technical solution of the utility model realizes by following measure: a kind of drilling pump center pull rod seal arrangement, comprise the drilling pump center pull rod, oil baffle, radiation fins, oil sealing box and oil sealing, the left end of radiation fins is fixedly mounted on the drilling pump center pull rod, the right-hand member of radiation fins and oil sealing box are fixedly installed togather, the oil sealing box is sleeved on the drilling pump center pull rod, the outer end and the oil baffle of oil sealing box are fixedly installed togather, gapped between the inner of oil sealing box and the drilling pump center pull rod, in the oil sealing box, oil sealing is installed, right-hand member at the oil sealing box is equipped with the baffle plate that can block oil sealing, and oil-sealing sleeve is contained on the drilling pump center pull rod and can seals up the drilling pump center pull rod.
Be further optimization and/or improvements below to above-mentioned model utility technological scheme:
The left end of above-mentioned radiation fins can be fixedly mounted on the drilling pump center pull rod by the monkey hoop.
The right-hand member of above-mentioned radiation fins can be fixed with flange, and flange and oil sealing box are fixedly installed togather.
Above-mentioned flange, oil sealing box and oil baffle can be installed together by bolt.
Above-mentioned oil sealing can adopt two-lip seal.
The utility model reasonable and compact in structure, easy to use, form combined sealing structure by radiation fins and two-lip seal, center pull rod is realized compound seal, good sealing effect, improve the reliability of drilling pump work, also effectively prevented simultaneously lubricant oil to lose efficacy and the waste and the environmental pollution that cause.
Description of drawings
Accompanying drawing 1 is looked the broken section structural representation for the master of the utility model most preferred embodiment.
Coding in the accompanying drawing is respectively: 1 is the drilling pump center pull rod, and 2 is oil baffle, and 3 is radiation fins, and 4 is the oil sealing box, and 5 is baffle plate, and 6 are the monkey hoop.
Embodiment
The utility model is not subjected to following embodiment's restriction, can determine concrete mode of execution according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this drilling pump center pull rod seal arrangement comprises drilling pump center pull rod 1, oil baffle 2, radiation fins 3, oil sealing box 4 and oil sealing, the left end of radiation fins 3 is fixedly mounted on the drilling pump center pull rod 1, the right-hand member of radiation fins 3 and oil sealing box 4 are fixedly installed togather, oil sealing box 4 is sleeved on the drilling pump center pull rod 1, the outer end of oil sealing box 4 and oil baffle 2 are fixedly installed togather, gapped between the inner of oil sealing box 4 and the drilling pump center pull rod 1, in oil sealing box 4, oil sealing is installed, right-hand member at oil sealing box 4 is equipped with the baffle plate 5 that can block oil sealing, and oil-sealing sleeve is contained on the drilling pump center pull rod 1 and can seals up drilling pump center pull rod 1.
Can according to actual needs above-mentioned drilling pump center pull rod seal arrangement be made further optimization and/or improvements:
As shown in Figure 1, as required, the left end of radiation fins 3 is fixedly mounted on the drilling pump center pull rod 1 by monkey hoop 6.
As shown in Figure 1, for the ease of installing, the right-hand member of radiation fins 3 is fixed with flange, and flange and oil sealing box 4 are fixedly installed togather.
As shown in Figure 1, for the ease of installing, flange, oil sealing box 4 and oil baffle 2 are installed together by bolt.
As shown in Figure 1, oil sealing adopts two-lip seal, and two-lip seal is existing known seal arrangement.
Above technical characteristics has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristics according to actual needs, satisfies the demand of different situations.
The installation of the utility model most preferred embodiment and using process: earlier radiation fins 3 is inserted on the drilling pump center pull rod 1, the oil sealing box 4 that two-lip seal will be housed again is installed on the oil baffle 2, use bolt, fixedly radiation fins 3 small ends are on drilling pump center pull rod 1 with monkey hoop 6 according to two limits of drilling pump crosshead stroke, and the flange of radiation fins 3 right-hand members is fixedly installed togather by bolt and oil sealing box 4 and oil baffle 2.When drilling pump is worked, radiation fins 3 is upheld with the to-and-fro motion of drilling pump center pull rod or is shunk, reliable sealing drilling pump power end machine oil, two-lip seal auxiliary seal cooling water or mud in the oil sealing box 4, even radiation fins 3 lost efficacy, two-lip seal can play the secondary seal effect.Like this, 3 of radiation finss are upheld with 1 to-and-fro motion of drilling pump center pull rod or are shunk, can radial floating, the phase mutual friction does not take place, even drilling pump center pull rod 1 and oil sealing concentricity generation deviation, drilling pump center pull rod 1 surface finishment reduces does not influence sealing effect yet, simultaneously two-lip seal auxiliary seal external refrigeration water or mud.The utility model is converted into relative standstill seal with the reciprocating movement sealing mode, and reliable sealing drilling pump power end machine oil is not revealed, and cooling water or mud do not enter in the drilling pump power end lubricant oil.Oil sealing box 4 installation dimensions are corresponding with oil baffle 2 installation dimensions of drilling pump.Even in use two-lip seal lost efficacy, radiation fins 3 can play the secondary seal effect, guarantees that fluid end water or mud do not enter in the lubricant oil.
Claims (7)
1. drilling pump center pull rod seal arrangement, it is characterized in that comprising the drilling pump center pull rod, oil baffle, radiation fins, oil sealing box and oil sealing, the left end of radiation fins is fixedly mounted on the drilling pump center pull rod, the right-hand member of radiation fins and oil sealing box are fixedly installed togather, the oil sealing box is sleeved on the drilling pump center pull rod, the outer end and the oil baffle of oil sealing box are fixedly installed togather, gapped between the inner of oil sealing box and the drilling pump center pull rod, in the oil sealing box, oil sealing is installed, right-hand member at the oil sealing box is equipped with the baffle plate that can block oil sealing, and oil-sealing sleeve is contained on the drilling pump center pull rod and can seals up the drilling pump center pull rod.
2. drilling pump center pull rod seal arrangement according to claim 1 is characterized in that the left end of radiation fins is fixedly mounted on the drilling pump center pull rod by the monkey hoop.
3. drilling pump center pull rod seal arrangement according to claim 1 and 2 is characterized in that the right-hand member of radiation fins is fixed with flange, and flange and oil sealing box are fixedly installed togather.
4. drilling pump center pull rod seal arrangement according to claim 3 is characterized in that flange, oil sealing box and oil baffle are installed together by bolt.
5. drilling pump center pull rod seal arrangement according to claim 1 and 2 is characterized in that oil sealing adopts two-lip seal.
6. drilling pump center pull rod seal arrangement according to claim 3 is characterized in that oil sealing adopts two-lip seal.
7. drilling pump center pull rod seal arrangement according to claim 4 is characterized in that oil sealing adopts two-lip seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205709948U CN201874797U (en) | 2010-10-21 | 2010-10-21 | Center pull rod sealing device of drill pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205709948U CN201874797U (en) | 2010-10-21 | 2010-10-21 | Center pull rod sealing device of drill pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874797U true CN201874797U (en) | 2011-06-22 |
Family
ID=44162715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205709948U Expired - Fee Related CN201874797U (en) | 2010-10-21 | 2010-10-21 | Center pull rod sealing device of drill pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996100A (en) * | 2011-09-08 | 2013-03-27 | 四川宏华石油设备有限公司 | Drilling pump pull rod sealing piece fixing method and fixing device thereof |
-
2010
- 2010-10-21 CN CN2010205709948U patent/CN201874797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996100A (en) * | 2011-09-08 | 2013-03-27 | 四川宏华石油设备有限公司 | Drilling pump pull rod sealing piece fixing method and fixing device thereof |
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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: 20110622 Termination date: 20161021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |