CN204127315U - Drilling mud pump input shaft sealing case - Google Patents

Drilling mud pump input shaft sealing case Download PDF

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Publication number
CN204127315U
CN204127315U CN201420461591.8U CN201420461591U CN204127315U CN 204127315 U CN204127315 U CN 204127315U CN 201420461591 U CN201420461591 U CN 201420461591U CN 204127315 U CN204127315 U CN 204127315U
Authority
CN
China
Prior art keywords
disc
oil
input shaft
drilling mud
pump input
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
Application number
CN201420461591.8U
Other languages
Chinese (zh)
Inventor
潘跃明
张吉平
刘庆
郭星民
刘宗国
翟艳军
李军
毕新忠
刘东章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bohai Sea Drilling Well Parent Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry
China Petrochemical Corp
Original Assignee
Bohai Sea Drilling Well Parent Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry
China Petrochemical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bohai Sea Drilling Well Parent Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry, China Petrochemical Corp filed Critical Bohai Sea Drilling Well Parent Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry
Priority to CN201420461591.8U priority Critical patent/CN204127315U/en
Application granted granted Critical
Publication of CN204127315U publication Critical patent/CN204127315U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of drilling mud pump input shaft sealing case.Its technological scheme is: by the 3rd rubber seal rings for seal between oil baffle disc outer rim and bearing cap, and the gap of reserved 1-2mm between the end of oil baffle disc and disc overlap, blocks the lubricant oil that major part is splashed from bearing extruding; Disc cover is pressed on input shaft by the back-up ring outside input shaft, described disc cover is sealed by the maze trough formative dynamics got rid of in whelk line, the L shape disc at middle part and outboard bearing lid of inner side, jointly the lubricant oil that oil baffle disc does not block is passed through rotary centrifugal force, throw away disc cover, the lubricant oil under getting rid of and the oil leak hole of the lubricant oil in maze trough through bottom, flow back to oil sump.Beneficial effect is: can effectively prevent leaking of slurry pump input shaft gear oil, can prevent from again invading in dust and muddy water, ensure that and the sealing that slurry pump input shaft is good extend the working life of slurry pump.

Description

Drilling mud pump input shaft sealing case
Technical field
The utility model relates to a kind of oil field drilling mud pump input shaft seal device, particularly a kind of drilling mud pump input shaft sealing case.
Background technique
Drilling mud pump is must obligato equipment during drilling well is produced, drilling mud pump relies on external impetus to drive driving shaft (input shaft) to be engaged by double helical spurgear with driven axle, the rotary motion of driving shaft is changed into linear reciprocating motion by 3 cranks be arranged on driven axle, by connecting rod, crosshead, center pull rod, piston rod, piston, the motion of drive fluid end valve body, cleaner for high-pressure drilling fluid is transported in high pressure pipe joint endlessly.Drilling mud pump input shaft carries the power input of slurry pump, input shaft and exterior power transmit conventional belt pulley and cardan shaft is connected, input shaft should bear larger radial load, also to bear the eccentric force that coaxiality deviation produces, cause certain injury to bearing of input shaft and oil sealing, the lubricant oil splashed from bearing extruding during slurry pump running often throws away from input shaft.After oil sealing damages, a large amount of lubricant oil outwards gets rid of oil, because seal break-off easily enters dust, muddy water when pump does not operate, pollutes gear oil, accelerates bearing wear, shorten the working life of slurry pump.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of drilling mud pump input shaft sealing case is provided, can the sealing of effective guarantee slurry pump input shaft, prevent leaking of gear oil, can prevent from again invading in dust and muddy water, ensure that and the sealing that slurry pump input shaft is good extend the working life of slurry pump.
Its technological scheme is: comprise disc cover, oil baffle disc, the 3rd rubber seal, bearing cap, oil leak hole, maze trough, L shape disc, get rid of whelk line, by the 3rd rubber seal rings for seal between described oil baffle disc outer rim and bearing cap, the gap of reserved 1-2mm between the end of oil baffle disc and disc overlap, blocks the lubricant oil that major part is splashed from bearing extruding; Disc cover is pressed on input shaft by the back-up ring outside input shaft, described disc cover is sealed by the maze trough formative dynamics got rid of in whelk line, the L shape disc at middle part and outboard bearing lid of inner side, jointly the lubricant oil that oil baffle disc does not block is passed through rotary centrifugal force, throw away disc cover, the lubricant oil under getting rid of and the oil leak hole of the lubricant oil in maze trough through bottom, flow back to oil sump.
Above-mentioned L shape disc matches with maze trough, and maze trough is communicated with the oil leak hole of bottom.
Adopt wool felt to seal between above-mentioned bearing cap and slurry pump housing, and carry out fit sealing by bolt.
Above-mentioned oil baffle disc is L shape structure, and the end of oil baffle disc is ramp structure, the gap of reserved 1-2mm between the outer wall that ramp structure and disc overlap.
Above-mentioned disc cover is tubular construction, and lateral ends is provided with and gets rid of whelk line, and the end of the other end is provided with screw, and middle part is provided with the L shape disc stretched out.
The beneficial effects of the utility model are: disc cover change in the past rubber framework grease seal directly and input shaft seal, input shaft and disc are overlapped and forms one, disc cover is followed input shaft and is rotated together, oil baffle disc is mainly between bearing cap and disc overlap, prevent that slurry pump input shaft gear from wearing and tearing, bearing wear is sunk, cause disc to overlap and produce and rub between oil baffle disc; Can effectively prevent leaking of slurry pump input shaft gear oil, can prevent from again invading in dust and muddy water, ensure that and the sealing that slurry pump input shaft is good extend the working life of slurry pump.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: the first rubber seal 1, disc cover 2, oil baffle disc 3, second rubber seal 4, the 3rd rubber seal 5, bearing cap 6, oil leak hole 7, wool felt 8, maze trough 9, L shape disc 10, screw 11, get rid of whelk line 12.
Embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises the first rubber seal 1, disc cover 2, oil baffle disc 3, second rubber seal 4, the 3rd rubber seal 5, bearing cap 6, oil leak hole 7, wool felt 8, maze trough 9, L shape disc 10, screw 11, gets rid of whelk line 12, sealed by the 3rd rubber seal 5 between described oil baffle disc 3 outer rim and bearing cap 6, the end of oil baffle disc 3 and disc overlap the gap of reserved 1-2mm between 2, block the lubricant oil that major part is splashed from bearing extruding; Disc cover 2 is pressed on input shaft by the back-up ring outside input shaft, described disc cover 2 by inner side get rid of whelk line 12, the L shape disc 10 at middle part seals with maze trough 9 formative dynamics in outboard bearing lid 6, jointly the lubricant oil that oil baffle disc 3 does not block is passed through rotary centrifugal force, throw away disc cover 2, the lubricant oil under getting rid of and the oil leak hole 7 of the lubricant oil in maze trough through bottom, flow back to oil sump.
Wherein, L shape disc 10 matches with maze trough 9, and maze trough 9 is communicated with the oil leak hole 7 of bottom; Adopt wool felt 8 to seal between bearing cap 6 and slurry pump housing, and carry out fit sealing by bolt.Above-mentioned oil baffle disc 3 is L shape structure, and the end of oil baffle disc 3 is ramp structure, the gap of reserved 1-2mm between the outer wall that ramp structure and disc overlap 2; Disc cover 2 is tubular construction, and lateral ends is provided with and gets rid of whelk line 12, and the end of the other end is provided with screw 11, and middle part is provided with the L shape disc 10 stretched out.
It should be noted that: disc cover change in the past rubber framework grease seal directly and input shaft seal, the leakage of oil that the senile abrasion due to rubber framework grease seal causes.But a disc cover has been installed on input shaft, by the first rubber seal 1 press seal, input shaft and disc are overlapped and forms one, disc cover is followed input shaft and is rotated together, utilize the principle of centrifugal force, the lubricant oil that disc puts is thrown away input shaft, is recovered to oil sump.
Bearing cap mainly contains the effect of three aspects, and one is compress oil baffle disc by the 3rd rubber seal 5, forms first sealing, stops most of lubricant oil, only have a small amount of lubricant oil to pass through between oil baffle disc and disc overlap.Two is that L shape disc 10 matches with maze trough 9, and the remaining oil leak hole joint sebific duct of lubricant oil bottom labyrinth is connected to sewage draining valve threeway place and flows back to oil sump.Three is bearing caps with disc overlap outside by together with wool felt packing ring stops outside dust and with muddy water in invade.
Oil baffle disc is mainly between bearing cap and disc overlap, the outer rim of oil baffle disc and bearing cap inner stopper Spielpassung, by the 3rd rubber seal 5, oil baffle disc is compressed, formation first seals, stop the lubricant oil that major part is splashed from bearing extruding, leave the gap of 1-2mm between oil baffle disc and disc overlap, prevent that slurry pump input shaft gear from wearing and tearing, bearing wear is sunk, cause disc to overlap and produce and rub between oil baffle disc.

Claims (5)

1. a drilling mud pump input shaft sealing case, it is characterized in that: comprise disc cover (2), oil baffle disc (3), the 3rd rubber seal (5), bearing cap (6), oil leak hole (7), maze trough (9), L shape disc (10), get rid of whelk line (12), sealed by the 3rd rubber seal (5) between described oil baffle disc (3) outer rim and bearing cap (6), the gap of reserved 1-2mm between the end of oil baffle disc (3) and disc cover (2), blocks the lubricant oil that major part is splashed from bearing extruding; Disc cover (2) is pressed on input shaft by the back-up ring outside input shaft, described disc cover (2) is sealed by maze trough (9) formative dynamics in the L shape disc (10) and the outboard bearing lid (6) that get rid of whelk line (12), middle part of inner side, jointly the lubricant oil that oil baffle disc (3) does not block is passed through rotary centrifugal force, throw away disc cover (2), the lubricant oil under getting rid of and the oil leak hole (7) of the lubricant oil in maze trough through bottom, flow back to oil sump.
2. drilling mud pump input shaft sealing case according to claim 1, is characterized in that: described L shape disc (10) matches with maze trough (9), and maze trough (9) is communicated with the oil leak hole (7) of bottom.
3. drilling mud pump input shaft sealing case according to claim 1, is characterized in that: adopt wool felt (8) to seal between described bearing cap (6) and slurry pump housing, and carry out fit sealing by bolt.
4. drilling mud pump input shaft sealing case according to claim 1, is characterized in that: described oil baffle disc (3) is L shape structure, and the end of oil baffle disc (3) is ramp structure, the gap of reserved 1-2mm between the outer wall of ramp structure and disc cover (2).
5. drilling mud pump input shaft sealing case according to claim 1, it is characterized in that: described disc cover (2) is tubular construction, lateral ends is provided with and gets rid of whelk line (12), and the end of the other end is provided with screw (11), and middle part is provided with the L shape disc (10) stretched out.
CN201420461591.8U 2014-08-15 2014-08-15 Drilling mud pump input shaft sealing case Expired - Fee Related CN204127315U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420461591.8U CN204127315U (en) 2014-08-15 2014-08-15 Drilling mud pump input shaft sealing case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420461591.8U CN204127315U (en) 2014-08-15 2014-08-15 Drilling mud pump input shaft sealing case

Publications (1)

Publication Number Publication Date
CN204127315U true CN204127315U (en) 2015-01-28

Family

ID=52383673

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420461591.8U Expired - Fee Related CN204127315U (en) 2014-08-15 2014-08-15 Drilling mud pump input shaft sealing case

Country Status (1)

Country Link
CN (1) CN204127315U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108240476A (en) * 2016-12-27 2018-07-03 深圳光启合众科技有限公司 Shaft sealer
CN110822097A (en) * 2019-09-25 2020-02-21 王力凡 Overhead power type slurry sealing device
CN110925428A (en) * 2019-12-18 2020-03-27 咸阳超越离合器有限公司 Combined seal
CN113137370A (en) * 2021-04-27 2021-07-20 浙江真空设备集团有限公司 Sealing structure of vacuum pump
CN113958693A (en) * 2021-12-22 2022-01-21 胜利油田新海兴达实业集团有限责任公司 Oil field horizontal speed reducer splash lubrication's sealing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108240476A (en) * 2016-12-27 2018-07-03 深圳光启合众科技有限公司 Shaft sealer
CN110822097A (en) * 2019-09-25 2020-02-21 王力凡 Overhead power type slurry sealing device
CN110925428A (en) * 2019-12-18 2020-03-27 咸阳超越离合器有限公司 Combined seal
CN113137370A (en) * 2021-04-27 2021-07-20 浙江真空设备集团有限公司 Sealing structure of vacuum pump
CN113958693A (en) * 2021-12-22 2022-01-21 胜利油田新海兴达实业集团有限责任公司 Oil field horizontal speed reducer splash lubrication's sealing device

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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: 20150128

Termination date: 20150815

EXPY Termination of patent right or utility model