CN108894982B - Variable displacement vane pump with seal compensation function - Google Patents

Variable displacement vane pump with seal compensation function Download PDF

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Publication number
CN108894982B
CN108894982B CN201810953072.6A CN201810953072A CN108894982B CN 108894982 B CN108894982 B CN 108894982B CN 201810953072 A CN201810953072 A CN 201810953072A CN 108894982 B CN108894982 B CN 108894982B
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CN
China
Prior art keywords
variable
mounting groove
sealing
sealing strip
spring
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Active
Application number
CN201810953072.6A
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Chinese (zh)
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CN108894982A (en
Inventor
许仲秋
杨福柱
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Hunan Meihu Intelligent Manufacturing Co ltd
Original Assignee
Hunan Oil Pump Co Ltd
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Application filed by Hunan Oil Pump Co Ltd filed Critical Hunan Oil Pump Co Ltd
Priority to CN201810953072.6A priority Critical patent/CN108894982B/en
Publication of CN108894982A publication Critical patent/CN108894982A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/356—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C2/3562—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
    • F01M2001/0238—Rotary pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

The application provides a variable displacement vane pump with a sealing compensation function, which comprises a pump body, a rotating pin, a rotor, a variable sliding block, a variable spring and a rectangular sealing strip, wherein a variable feedback oil cavity is arranged between the pump body and the variable sliding block, the variable sliding block is provided with a spring pressing block and a sealing piece mounting groove, the variable spring is arranged on one side of the spring pressing block, the rectangular sealing strip is arranged in the sealing piece mounting groove, a gap is arranged between the rectangular sealing strip and the bottom of the sealing piece mounting groove, and a compensation oil duct which is used for communicating the sealing piece mounting groove with the variable feedback oil cavity is arranged on the variable sliding block. The application cancels the traditional sealing support piece, utilizes the compensation oil duct to introduce pressure oil to support the rectangular sealing piece, and makes the rectangular sealing strip cling to the pump body to play a role in sealing; when the rectangular sealing strip is worn, the rectangular sealing strip can be automatically compensated under the action of pressure oil, so that the defect that the rectangular sealing strip cannot be sealed due to aging or wear is overcome.

Description

Variable displacement vane pump with seal compensation function
Technical Field
The application relates to the technical field of lubricating systems of internal combustion engines, in particular to a vane type oil pump with variable displacement.
Background
For variable displacement vane pumps, a variable feedback oil chamber is arranged between a pump body and the variable displacement slide block, a seal member mounting groove is usually arranged on the outer surface of the variable displacement slide block for sealing the variable feedback oil chamber, a seal support member and a rectangular seal member are arranged in the groove, and the seal support member is arranged at the bottom in the seal member mounting groove and is used for supporting the rectangular seal member. In the prior art, a circular rubber rod is generally adopted for sealing support, when the circular rubber rod is used for supporting the rectangular sealing element, the phenomenon that the circular rubber rod deflects or slides towards the left end and the right end in the groove easily occurs in the use process, the installation position of the rectangular sealing element is further changed, the rectangular sealing element is easy to age and wear, and the factors influence the stability and the sealing effect of the variable sliding block.
Disclosure of Invention
The present application aims to overcome the above-mentioned disadvantages of the prior art and to provide a variable displacement vane pump with a seal compensation function.
The technical scheme of the application is as follows: the utility model provides a variable displacement impeller pump with sealed compensation function, it includes the pump body, rotatory round pin, rotor, variable slider, variable spring, rectangle sealing strip, is equipped with variable feedback oil pocket between the pump body and variable slider, the variable slider is equipped with spring briquetting and sealing member mounting groove, variable spring installs one side of spring briquetting, the rectangle sealing strip is installed in the sealing member mounting groove, the rectangle sealing strip with be equipped with the clearance between the sealing member mounting groove bottom, be equipped with the compensation oil duct that is linked together sealing member mounting groove and variable feedback oil pocket on the variable slider.
Preferably, the bottom of the sealing element mounting groove is an arc bottom.
In one embodiment, the seal mounting groove and the make-up oil passage are both provided on the spring press block.
The beneficial effects of the application are as follows: 1) According to the application, the traditional sealing support piece is eliminated, the pressure oil in the variable feedback oil cavity is led into the sealing piece mounting groove by arranging the compensation oil duct on the variable sliding block, and the rectangular sealing piece is supported by the pressure oil, so that the rectangular sealing strip is tightly attached to the pump body to play a sealing role; 2) When the rectangular sealing strip is worn, the rectangular sealing strip can be automatically compensated under the action of pressure oil, the defect that the rectangular sealing strip cannot be sealed due to aging or abrasion is overcome, and the rotating friction force between the variable sliding block and the pump body can be reduced, so that the variable sliding block rotates more flexibly.
Drawings
FIG. 1 is a schematic view of a vane pump according to an embodiment of the present application;
the reference numerals are:
1-pump body 2-rotating pin 3-rotor
4-variable sliding block 5-variable spring 6-rectangular sealing strip
7-variable feedback oil cavity 8-compensation oil duct 41-spring pressing block.
Detailed Description
The application will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. In the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other between two elements, may be directly connected, or may be indirectly connected through an intermediate medium, and the specific meaning of the terms may be understood by those skilled in the art according to circumstances.
As shown in fig. 1, the preferred embodiment of the present application is: the utility model provides a variable displacement impeller pump with sealed compensation function, it includes pump body 1, rotatory round pin 2, rotor 3, variable slider 4, variable spring 5, rectangle sealing strip 6, is equipped with variable feedback oil pocket 7 between the pump body and variable slider, variable slider 4 is equipped with spring briquetting 41 and sealing member mounting groove, variable spring 5 installs in one side of spring briquetting 41, rectangle sealing strip 6 installs in the sealing member mounting groove, is equipped with the clearance between rectangle sealing strip 6 and the sealing member mounting groove bottom, and the bottom of sealing member mounting groove is the circular arc end, be equipped with on the variable slider 4 with the compensating oil duct 8 that is linked together sealing member mounting groove and variable feedback oil pocket 7, sealing member mounting groove with compensating oil duct 8 all sets up on the spring briquetting 41.
The traditional sealing support piece is omitted, the pressure oil in the variable feedback oil cavity 7 is led into the sealing piece mounting groove by arranging the compensation oil duct 8 on the variable sliding block 4, and the rectangular sealing piece 6 is supported by the pressure oil, so that the rectangular sealing strip 6 is tightly attached to the pump body 1 to play a sealing role; when the rectangular sealing strip 6 is worn, the rectangular sealing strip can be automatically compensated under the action of pressure oil, the defect that the rectangular sealing strip 6 cannot be sealed due to aging or wear is overcome, and the rotating friction force between the variable sliding block 4 and the pump body 1 can be reduced, so that the variable sliding block 4 rotates more flexibly.
The foregoing embodiments are preferred embodiments of the present application, and in addition, the present application may be implemented in other ways, and any obvious substitution is within the scope of the present application without departing from the concept of the present application.
In order to facilitate understanding of the improvements of the present application over the prior art, some of the figures and descriptions of the present application have been simplified and some other elements have been omitted for clarity, as will be appreciated by those of ordinary skill in the art.

Claims (1)

1. The utility model provides a variable displacement impeller pump with sealed compensation function, it includes pump body (1), rotatory round pin (2), rotor (3), variable slider (4), variable spring (5), rectangle sealing strip (6), is equipped with variable feedback oil pocket (7) between pump body (1) and variable slider (4), variable slider (4) are equipped with spring briquetting (41) and sealing member mounting groove, variable spring (5) are installed one side of spring briquetting (41), rectangle sealing strip (6) are installed in the sealing member mounting groove, its characterized in that: a gap is arranged between the rectangular sealing strip (6) and the bottom of the sealing element mounting groove, and the bottom of the sealing element mounting groove is an arc bottom; the variable sliding block (4) is provided with a compensation oil duct (8) which is used for communicating the sealing element mounting groove with the variable feedback oil cavity (7), and the sealing element mounting groove and the compensation oil duct (8) are both arranged on the spring pressing block (41).
CN201810953072.6A 2018-08-21 2018-08-21 Variable displacement vane pump with seal compensation function Active CN108894982B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810953072.6A CN108894982B (en) 2018-08-21 2018-08-21 Variable displacement vane pump with seal compensation function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810953072.6A CN108894982B (en) 2018-08-21 2018-08-21 Variable displacement vane pump with seal compensation function

Publications (2)

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CN108894982A CN108894982A (en) 2018-11-27
CN108894982B true CN108894982B (en) 2023-12-05

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173427A (en) * 2019-06-20 2019-08-27 湖南机油泵股份有限公司 A kind of vane pump reducing sliding block seal friction force
CN111322509A (en) * 2020-04-24 2020-06-23 湖南机油泵股份有限公司 Variable displacement pump capable of reducing variable fluctuation
CN114215745A (en) * 2021-12-28 2022-03-22 湖南机油泵股份有限公司 Variable displacement oil pump capable of avoiding temperature rise and pressure drop

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410214A (en) * 2011-11-03 2012-04-11 湖南机油泵股份有限公司 Middle-section variable high-speed pressure limiting three-section pressure feedback variable-displacement vane pump and variable-displacement method
CN202468308U (en) * 2011-11-03 2012-10-03 湖南机油泵股份有限公司 Three-section pressure feedback variable displacement vane pump with variable high-speed pressure-limiting middle section
CN202707477U (en) * 2012-05-31 2013-01-30 阜新北鑫星液压有限公司 High-pressure spiral arc gear pump
CN104047665A (en) * 2014-06-06 2014-09-17 湖南机油泵股份有限公司 Control system for controlling single-action-cavity feedback variable-displacement vane pump by electromagnetic valve
CN104100522A (en) * 2014-07-08 2014-10-15 湖南机油泵股份有限公司 Displacement-variable blade pump with simplified structure
CN204126892U (en) * 2014-10-15 2015-01-28 湖南机油泵股份有限公司 A kind of secondary variable displacement vane pump
CN204312320U (en) * 2014-09-20 2015-05-06 湖南省嘉力机械有限公司 A kind of Novel two-stage variable displacement vane pump
CN104912619A (en) * 2015-06-15 2015-09-16 湖南机油泵股份有限公司 System for controlling oil drainage type single-cavity two-stage variable displacement blade pump
CN105074217A (en) * 2013-03-13 2015-11-18 麦格纳动力系有限公司 Vane pump with multiple control chambers
CN105840571A (en) * 2015-01-16 2016-08-10 徐工集团工程机械股份有限公司 Valve body of load-sensitive multi-way valve reversing link and load-sensitive multi-way valve reversing link
CN206817135U (en) * 2017-06-09 2017-12-29 湖南机油泵股份有限公司 A kind of variable displacement impeller pump
CN107605720A (en) * 2017-10-27 2018-01-19 湖南机油泵股份有限公司 A kind of three-level or level Four displacement-variable oil pump based on biswitch magnetic valve
CN208595056U (en) * 2018-08-21 2019-03-12 湖南机油泵股份有限公司 A kind of variable displacement vane pump with sealing compensation function

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410214A (en) * 2011-11-03 2012-04-11 湖南机油泵股份有限公司 Middle-section variable high-speed pressure limiting three-section pressure feedback variable-displacement vane pump and variable-displacement method
CN202468308U (en) * 2011-11-03 2012-10-03 湖南机油泵股份有限公司 Three-section pressure feedback variable displacement vane pump with variable high-speed pressure-limiting middle section
CN202707477U (en) * 2012-05-31 2013-01-30 阜新北鑫星液压有限公司 High-pressure spiral arc gear pump
CN105074217A (en) * 2013-03-13 2015-11-18 麦格纳动力系有限公司 Vane pump with multiple control chambers
CN104047665A (en) * 2014-06-06 2014-09-17 湖南机油泵股份有限公司 Control system for controlling single-action-cavity feedback variable-displacement vane pump by electromagnetic valve
CN104100522A (en) * 2014-07-08 2014-10-15 湖南机油泵股份有限公司 Displacement-variable blade pump with simplified structure
CN204312320U (en) * 2014-09-20 2015-05-06 湖南省嘉力机械有限公司 A kind of Novel two-stage variable displacement vane pump
CN204126892U (en) * 2014-10-15 2015-01-28 湖南机油泵股份有限公司 A kind of secondary variable displacement vane pump
CN105840571A (en) * 2015-01-16 2016-08-10 徐工集团工程机械股份有限公司 Valve body of load-sensitive multi-way valve reversing link and load-sensitive multi-way valve reversing link
CN104912619A (en) * 2015-06-15 2015-09-16 湖南机油泵股份有限公司 System for controlling oil drainage type single-cavity two-stage variable displacement blade pump
CN206817135U (en) * 2017-06-09 2017-12-29 湖南机油泵股份有限公司 A kind of variable displacement impeller pump
CN107605720A (en) * 2017-10-27 2018-01-19 湖南机油泵股份有限公司 A kind of three-level or level Four displacement-variable oil pump based on biswitch magnetic valve
CN208595056U (en) * 2018-08-21 2019-03-12 湖南机油泵股份有限公司 A kind of variable displacement vane pump with sealing compensation function

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Address after: No.69 Beizheng street, Chengguan Town, Hengdong County, Hengyang City, Hunan Province

Patentee after: Hunan Meihu Intelligent Manufacturing Co.,Ltd.

Country or region after: China

Address before: No.69 Beizheng street, Chengguan Town, Hengdong County, Hengyang City, Hunan Province

Patentee before: Hunan Oil Pump Co.,Ltd.

Country or region before: China