CN202326170U - Oil leakage prevention structure at power end - Google Patents

Oil leakage prevention structure at power end Download PDF

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Publication number
CN202326170U
CN202326170U CN 201120469329 CN201120469329U CN202326170U CN 202326170 U CN202326170 U CN 202326170U CN 201120469329 CN201120469329 CN 201120469329 CN 201120469329 U CN201120469329 U CN 201120469329U CN 202326170 U CN202326170 U CN 202326170U
Authority
CN
China
Prior art keywords
oil
power
passage
bearing gland
leakage
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
CN 201120469329
Other languages
Chinese (zh)
Inventor
凌学勤
王小磊
孙彪
武伟
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.)
CNMC Shenyang Pump Co Ltd
Original Assignee
CNMC Shenyang Pump Co Ltd
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 CNMC Shenyang Pump Co Ltd filed Critical CNMC Shenyang Pump Co Ltd
Priority to CN 201120469329 priority Critical patent/CN202326170U/en
Application granted granted Critical
Publication of CN202326170U publication Critical patent/CN202326170U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an oil leakage prevention structure at a power end, belonging to the technical field of sealing structures. The oil leakage prevention structure at the power end comprises a bearing cap and the structural key points of the oil leakage prevention structure are that: drainback passages communicated with a sealing cavity of the bearing cap are arranged on the side wall contacted with a sealing ring at the lower part of the bearing cap; a notch corresponding to one port of an oil conduction channel on the side wall of a bearing sleeve is arranged in the side wall of the bearing cap, contacted with the bearing sleeve, and the other port of the oil conduction channel is communicated with an oil tank at the power end.

Description

Power end prevents the leakage of oil structure
Technical field
the utility model belongs to the sealing configuration technical field, relates in particular to a kind of power end and prevents the leakage of oil structure.
Background technique
diaphragm pump power end bearing gland not only can be regulated bearing play, rigid bearing, protection bearing, and can play the effect of sealing fluid.In power end crankshaft rotating process, excessive when the fluid that enters into the bearing gland enclosed cavity, in the time of can not in time flowing back to the power end fuel tank, fluid will be along the bent axle axial leakage to the power end casing outside, thereby causes power end casing oil leakage phenomenon.
Summary of the invention
the utility model is exactly to the problems referred to above, provides a kind of power end to prevent the leakage of oil structure.
are for realizing above-mentioned purpose; The utility model adopts following technological scheme; The utility model comprises bearing gland, and the sidewall that its structure outline bearing gland bottom contacts with seal ring is provided with the drainback passage that is communicated with the bearing gland enclosed cavity; The sidewall that bearing gland contacts with bearing housing be provided with the bearing housing sidewall on the corresponding breach of Oil Guide passage one port, Oil Guide passage another port is communicated with the power end fuel tank.
as a kind of preferred version, the said seal ring of the utility model is the J RunddichtringO and is two, is the oil return circle between two J RunddichtringOs.
as another kind of preferred version, the said drainback passage of the utility model is L shaped drainback passage, and the upper end of L shaped drainback passage links to each other with said oil return circle, and the lower end of L shaped drainback passage is communicated with the bearing gland enclosed cavity.
as another kind of preferred version, the sidewall that the said bearing gland of the utility model top contacts with seal ring is provided with the oiling passage, and the lower end of oiling passage links to each other with the oil return circle, and the upper end of oiling passage links to each other with lubricating cup.
as another kind of preferred version, the said Oil Guide passage of the utility model is L shaped Oil Guide passage, and the upper end of L shaped Oil Guide passage is connected with said breach, and the lower end of L shaped Oil Guide passage is communicated with the power end fuel tank.
As another kind of preferred version, the said drainback passage of the utility model is arranged on the bearing gland vertical axis ; Said breach is two, is symmetricly set on the both sides of bearing gland vertical axis.
as another kind of preferred version, the angle between said two breach of the utility model is 77 degree.
as another kind of preferred version, the diameter of section of said drainback passage of the utility model and oiling passage is 10mm.
secondly, the said notch size of the utility model is 13 * 25mm.
in addition, the said Oil Guide channel cross-section of the utility model diameter is 20mm.
the utility model beneficial effect: can make fluid flow back to the bearing gland enclosed cavity along the bent axle axial leakage through drainback passage; And finally return the power end fuel tank, thereby prevented that power end fluid from leaking outside from the bearing side through breach and Oil Guide channel flow.
Description of drawings
further specify the utility model below in conjunction with accompanying drawing and embodiment.The utility model protection domain not only is confined to the statement of following content.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model bearing gland front view.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is that the K of Fig. 3 is to view.
During schemed , 1 was that power end fuel tank, 2 is that bearing housing, 3 is that Oil Guide passage, 4 is that bearing gland enclosed cavity, 5 is that drainback passage, 6 is that oil return circle, 7 is that seal ring, 8 is that oiling passage, 9 is that lubricating cup, 10 is that bearing gland, 11 is that bent axle, 12 is a breach.
Embodiment
are as shown in the figure; The utility model comprises bearing gland 10; The sidewall that bearing gland 10 bottoms contact with seal ring 7 is provided with the drainback passage 5 that is communicated with bearing gland enclosed cavity 4; The sidewall that bearing gland 10 contacts with bearing housing 2 be provided with bearing housing 2 sidewalls on the corresponding breach 12 of Oil Guide passage 3 one ports, Oil Guide passage 3 another port are communicated with power end fuel tank 1.
said seal ring 7 is the J RunddichtringO and is two, is oil return circle 6 between two J RunddichtringOs.Adopt two J RunddichtringOs, sealing effect is better.
said drainback passage 5 is L shaped drainback passage, and the upper end of L shaped drainback passage links to each other with said oil return circle 6, and the lower end of L shaped drainback passage is communicated with bearing gland enclosed cavity 4.
The sidewall that said bearing gland 10 tops contact with seal ring 7 is provided with oiling passage 8, and the lower end of oiling passage 8 links to each other with oil return circle 6, and the upper end of oiling passage 8 links to each other with lubricating cup 9.In lubricating cup 9, inject lubricant oil, be lubricated, prolonged the working life of seal ring 7 through oiling passage 8,6 pairs of seal rings 7 of oil return circle.
in addition, oiling passage 8 matches with said drainback passage 5, can be used as the way to cycle oil that injects lubricant oil from lubricating cup 9.
said Oil Guide passage 3 is L shaped Oil Guide passage, and the upper end of L shaped Oil Guide passage is connected with said breach 12, and the lower end of L shaped Oil Guide passage is communicated with power end fuel tank 1.
said drainback passage 5 is arranged on bearing gland 10 vertical axis; Said breach 12 is two, is symmetricly set on the both sides of bearing gland 10 vertical axis.12, two breach of two breach, 12 corresponding two Oil Guide passages 3 are set, have increased the oil return ability of whole device, make oil return smooth more, avoid the too fast rising of oil level.
Angle between said two breach 12 is 77 degree.Certainly bearing gland 10 is generally circle, and two such breach 12 are higher than bearing gland enclosed cavity 4 bottoms, make bearing gland enclosed cavity 4 bottoms keep a part of fluid and come lubricating bearings.
The diameter of section of said drainback passage 5 and oiling passage 8 is 10mm.Said breach 12 is of a size of 13 * 25mm.Said Oil Guide passage 3 diameter of sections are 20mm.Above size is to be provided with according to the existing diaphragm pump power end equipment that generally uses, and also can require to do with adjustment according to distinct device and different oil returns certainly.
are below in conjunction with the oil return process of description of drawings the utility model: after diaphragm pump is driven operation; If it is excessive to enter into the fluid of bearing gland enclosed cavity 4; In the time of can not in time flowing back to casing, the fluid that axially flows out along bent axle 11 can get into oil return circle 6 through the first road J-shaped seal ring on the bearing gland 10, gets into breach 12 places through drainback passage 5, bearing gland enclosed cavity 4 again; At last with bearing housing 2 on Oil Guide passage 3 be communicated with, flow back to power end fuel tank 1.
after diaphragm pump is driven operation, the injecting lubricant oil from lubricating cup 9 and accomplish lubricated to J-shaped seal ring and axle sleeve surface of contact of discontinuity, lubricant oil passes through drainback passage 5 through oil return circle 6, finally flows back to power end fuel tank 1.
it is understandable that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technological scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.

Claims (10)

1. power end prevents the leakage of oil structure; Comprise bearing gland (10); It is characterized in that the sidewall that bearing gland (10) bottom contacts with seal ring (7) is provided with the drainback passage (5) that is communicated with bearing gland enclosed cavity (4); The sidewall that bearing gland (10) contacts with bearing housing (2) be provided with bearing housing (2) sidewall on the Oil Guide passage corresponding breach of (3) one ports (12), Oil Guide passage (3) another port is communicated with power end fuel tank (1).
2. prevent the leakage of oil structure according to the said power end of claim 1, it is characterized in that said seal ring (7) is the J RunddichtringO and is two, is oil return circle (6) between two J RunddichtringOs.
3. prevent the leakage of oil structure according to the said power end of claim 2; It is characterized in that said drainback passage (5) is L shaped drainback passage; The upper end of L shaped drainback passage links to each other with said oil return circle (6), and the lower end of L shaped drainback passage is communicated with bearing gland enclosed cavity (4).
4. prevent the leakage of oil structure according to the said power end of claim 3; It is characterized in that the sidewall that said bearing gland (10) top contacts with seal ring (7) is provided with oiling passage (8); The lower end of oiling passage (8) links to each other with oil return circle (6), and the upper end of oiling passage (8) links to each other with lubricating cup (9).
5. prevent the leakage of oil structure according to the said power end of claim 1, it is characterized in that said Oil Guide passage (3) is L shaped Oil Guide passage, the upper end of L shaped Oil Guide passage is connected with said breach (12), and the lower end of L shaped Oil Guide passage is communicated with power end fuel tank (1).
6. prevent the leakage of oil structure according to the said power end of claim 1, it is characterized in that said drainback passage (5) is arranged on bearing gland (10) vertical axis; Said breach (12) is two, is symmetricly set on the both sides of bearing gland (10) vertical axis.
7. prevent the leakage of oil structure according to the said power end of claim 6, it is characterized in that the angle between said two breach (12) is 77 degree.
8. prevent the leakage of oil structure according to the said power end of claim 1, it is characterized in that the diameter of section of said drainback passage (5) and oiling passage (8) is 10mm.
9. said according to Claim 8 power end prevents the leakage of oil structure, it is characterized in that said breach (12) is of a size of 13 * 25mm.
10. prevent the leakage of oil structure according to the said power end of claim 9, it is characterized in that said Oil Guide passage (3) diameter of section is 20mm.
CN 201120469329 2011-11-23 2011-11-23 Oil leakage prevention structure at power end Expired - Fee Related CN202326170U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120469329 CN202326170U (en) 2011-11-23 2011-11-23 Oil leakage prevention structure at power end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120469329 CN202326170U (en) 2011-11-23 2011-11-23 Oil leakage prevention structure at power end

Publications (1)

Publication Number Publication Date
CN202326170U true CN202326170U (en) 2012-07-11

Family

ID=46438152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120469329 Expired - Fee Related CN202326170U (en) 2011-11-23 2011-11-23 Oil leakage prevention structure at power end

Country Status (1)

Country Link
CN (1) CN202326170U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111156155A (en) * 2019-12-29 2020-05-15 陕西航天动力高科技股份有限公司 Prevent extravagant seal structure of diaphragm pump fluid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111156155A (en) * 2019-12-29 2020-05-15 陕西航天动力高科技股份有限公司 Prevent extravagant seal structure of diaphragm pump fluid
CN111156155B (en) * 2019-12-29 2021-11-12 陕西航天动力高科技股份有限公司 Prevent extravagant seal structure of diaphragm pump fluid

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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: 20120711

Termination date: 20151123