CN112460012A - Drilling BW-850 type slurry pump pull rod sealing device - Google Patents
Drilling BW-850 type slurry pump pull rod sealing device Download PDFInfo
- Publication number
- CN112460012A CN112460012A CN202011455593.2A CN202011455593A CN112460012A CN 112460012 A CN112460012 A CN 112460012A CN 202011455593 A CN202011455593 A CN 202011455593A CN 112460012 A CN112460012 A CN 112460012A
- Authority
- CN
- China
- Prior art keywords
- pull rod
- crankcase
- sealing
- drilling
- guide sleeve
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 239000002002 slurry Substances 0.000 title description 9
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/02—Packing the free space between cylinders and pistons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
Abstract
The invention discloses a pull rod sealing device of a BW-850 type drilling mud pump, which comprises a pull rod shaft, a crankcase, a guide sleeve and a pump head shell, wherein the guide sleeve is sleeved outside the pull rod shaft, the crankcase is sleeved outside the guide sleeve, the crankcase is connected with the pump head shell, a sealing seat and a sealing cover are arranged between the crankcase and the pump head shell, the sealing cover is connected with the sealing seat, a combined sealing gasket and a felt are arranged in a hole groove in the sealing cover, and an inner clamp spring axially fixes the combined sealing gasket. The CRS11 composite framework oil seal has good leak resistance and wear resistance, and can effectively prevent the CRS11 composite framework oil seal from axially moving.
Description
Technical Field
The invention belongs to the technical field of sealing, and particularly relates to a pull rod sealing device of a drilling BW-850 type slurry pump.
Background
A drilling machine can generate a large amount of mud in drilling operation, the mud needs to be cleaned in time on site, a BW-850 type mud pump is a main device for pollution discharge of the drilling site, the mud pump is frequently broken down in use for many years, drilling operation is affected, and mainly mud sand enters the inside of the mud pump to cause mechanical damage to transmission parts, so that the device is broken down and stopped.
The BW-850 type slurry pump original installation tie rod seal cover is felt seal and Y type skeleton oil seal, Y type skeleton oil seal is sealed by inner circle lip, but the lip is apt to abrade, the skeleton seal abrades and can lead to the felt seal to abrade and aggravate; failure of these two seals causes mud and sand to enter the mud pump.
When the slurry pump works, the pull rod moves in the axial direction in a two-way mode, the pull rod rubs with the sealing ring, the sealing ring falls off, only felt is left for sealing, sealing failure is caused quickly, and the pump head of the slurry pump is damaged.
Through long-term use, lead to crankcase fluid to leak by foretell two defects, mud gets into through the gap between pull rod and the sealing washer, mixes with fluid and has damaged other parts in the incasement, leads to the repair volume to increase, and the cost increase leads to equipment duty cycle short, overhauls frequently, and the problem is long-term relapse, influences the drilling operation.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a pull rod sealing device for drilling BW-850 type slurry pump.
The invention is realized by the following technical scheme.
The utility model provides a drilling BW-850 type slush pump pull rod sealing device, includes pull rod axle (1), crankcase (2), guide sleeve (3), pump head casing (5), outside guide sleeve (3) cover was located pull rod axle (1), outside guide sleeve (3) were located to crankcase (2) cover, crankcase (2) met with pump head casing (5), was equipped with seal receptacle (4) and sealed lid (6) between crankcase (2) and pump head casing (5), sealed lid (6) are connected with seal receptacle (4), and install in the hole groove in sealed lid (6) combined seal pad (8) and felt (7), interior jump ring (9) axial fixity combined seal pad (8).
In the invention, the combined sealing ring (8) adopts a CRS11 combined type framework oil seal.
In the invention, a groove for accommodating the inner snap spring (9) is arranged in the sealing cover (6), one end of the inner snap spring (9) is arranged in the groove, the other end of the inner snap spring is contacted with the combined sealing gasket (8), and the combined sealing gasket (8) is axially fixed.
The invention has the beneficial technical effects that:
1. the CRS11 composite framework oil seal, namely the combined seal ring, has good leak resistance and wear resistance, is widely used in engineering machinery such as excavators and agricultural machinery, and is suitable for various complex environments and industrial and mining conditions. The CRS11 composite framework oil seal can effectively prolong the service life of a BW-850 type slurry pump pull rod sealing system.
2. An inner clamp spring is additionally arranged on the CRS11 composite framework oil seal, namely an outer end shaft hole of a composite sealing ring, so that the CRS11 composite framework oil seal can be effectively prevented from axially moving, and reliable guarantee is provided for fixing the CRS11 composite framework oil seal.
3. The device is simple to install, durable and wide in applicability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of the structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
As shown in fig. 1-2, the invention claims a sealing device for a pull rod of a drilling BW-850 type slurry pump, which comprises a pull rod shaft 1, a crankcase 2, a guide sleeve 3 and a pump head housing 5, wherein the guide sleeve 3 is sleeved outside the pull rod shaft 1, the crankcase 2 is sleeved outside the guide sleeve 3, the crankcase 2 is connected with the pump head housing 5, a sealing seat 4 and a sealing cover 6 are arranged between the crankcase 2 and the pump head housing 5, the sealing cover 6 is connected with the sealing seat 4, a combined sealing gasket 8 and a felt 7 are arranged in a hole groove in the sealing cover 6, and an inner clamp spring 9 axially fixes the combined sealing gasket 8; the combined sealing ring 8 adopts a CRS11 combined type framework oil seal; a groove for accommodating the inner clamp spring 9 is formed in the sealing cover 6, one end of the inner clamp spring 9 is arranged in the groove, the other end of the inner clamp spring is in contact with the combined sealing gasket 8, and the combined sealing gasket 8 is axially fixed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. It should be noted that other equivalent modifications can be made by those skilled in the art in light of the teachings of the present invention, and all such modifications can be made as are within the scope of the present invention.
Claims (3)
1. The utility model provides a drilling BW-850 type slush pump pull rod sealing device, includes pull rod axle (1), crankcase (2), guide sleeve (3), pump head casing (5), outside guide sleeve (3) cover was located pull rod axle (1), outside guide sleeve (3) were located to crankcase (2) cover, crankcase (2) met with pump head casing (5), its characterized in that is equipped with seal receptacle (4) and sealed lid (6) between crankcase (2) and pump head casing (5), sealed lid (6) are connected with seal receptacle (4), and built-up seal pad (8) and felt (7) are installed in the hole groove in sealed lid (6), and interior jump ring (9) axial fixity built-up seal pad (8).
2. The drilling BW-850 type mud pump drawbar sealing arrangement according to claim 1, characterized in that the combined seal ring (8) employs a CRS11 composite framework oil seal.
3. The sealing device for the draw rod of drilling BW-850 type mud pump according to claim 1 or 2, characterized in that the sealing cover (6) is provided with a groove for accommodating an inner snap spring (9), one end of the inner snap spring (9) is arranged in the groove, the other end of the inner snap spring is contacted with the combined sealing gasket (8), and the combined sealing gasket (8) is axially fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455593.2A CN112460012A (en) | 2020-12-10 | 2020-12-10 | Drilling BW-850 type slurry pump pull rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455593.2A CN112460012A (en) | 2020-12-10 | 2020-12-10 | Drilling BW-850 type slurry pump pull rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112460012A true CN112460012A (en) | 2021-03-09 |
Family
ID=74800750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011455593.2A Pending CN112460012A (en) | 2020-12-10 | 2020-12-10 | Drilling BW-850 type slurry pump pull rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112460012A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA712828A (en) * | 1965-07-06 | H. Carson Brian | Unitized radial shaft seals | |
| JPH0388064U (en) * | 1989-12-26 | 1991-09-09 | ||
| CN2538981Y (en) * | 2002-03-28 | 2003-03-05 | 梁伯顺 | Improved structure of motive seal for Roots pump |
| CN2758518Y (en) * | 2004-12-29 | 2006-02-15 | 王占杰 | Multi-stage change speed plunger mud pump |
| CN204371656U (en) * | 2014-12-16 | 2015-06-03 | 四机赛瓦石油钻采设备有限公司 | A kind of sealer with assembled |
| CN205605412U (en) * | 2016-04-15 | 2016-09-28 | 宝鸡石油机械有限责任公司 | Intermediate draw bar sealing device for reciprocating pump |
| CN107588001A (en) * | 2017-10-20 | 2018-01-16 | 南京蒙福液压机械有限公司 | A kind of hydraulic pressure crescent gear pump |
| CN209324643U (en) * | 2018-11-03 | 2019-08-30 | 山东恒利矿场设备有限公司 | It is a kind of improve crankcase structure pass through pump |
-
2020
- 2020-12-10 CN CN202011455593.2A patent/CN112460012A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA712828A (en) * | 1965-07-06 | H. Carson Brian | Unitized radial shaft seals | |
| JPH0388064U (en) * | 1989-12-26 | 1991-09-09 | ||
| CN2538981Y (en) * | 2002-03-28 | 2003-03-05 | 梁伯顺 | Improved structure of motive seal for Roots pump |
| CN2758518Y (en) * | 2004-12-29 | 2006-02-15 | 王占杰 | Multi-stage change speed plunger mud pump |
| CN204371656U (en) * | 2014-12-16 | 2015-06-03 | 四机赛瓦石油钻采设备有限公司 | A kind of sealer with assembled |
| CN205605412U (en) * | 2016-04-15 | 2016-09-28 | 宝鸡石油机械有限责任公司 | Intermediate draw bar sealing device for reciprocating pump |
| CN107588001A (en) * | 2017-10-20 | 2018-01-16 | 南京蒙福液压机械有限公司 | A kind of hydraulic pressure crescent gear pump |
| CN209324643U (en) * | 2018-11-03 | 2019-08-30 | 山东恒利矿场设备有限公司 | It is a kind of improve crankcase structure pass through pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210309 |
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| RJ01 | Rejection of invention patent application after publication |