CN106289024B - A kind of method for measuring the actual end clearance of enclosed gear pump - Google Patents
A kind of method for measuring the actual end clearance of enclosed gear pump Download PDFInfo
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- CN106289024B CN106289024B CN201510270634.3A CN201510270634A CN106289024B CN 106289024 B CN106289024 B CN 106289024B CN 201510270634 A CN201510270634 A CN 201510270634A CN 106289024 B CN106289024 B CN 106289024B
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- end clearance
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Abstract
The invention category assembly technology field.Solves the measuring method of enclosed gear pump assembling rear enclosed inside cavity gear face actual gap.A kind of method for measuring enclosed gear pump assembling rear end face gap is provided, for accurately controlling Amount of actual oil supply, takes into account the job security of gear pump.Specifically include step：Measure the end clearance under free state and --- choose pad --- prepackage pump group --- measurement shaft end driving torque.
Description
Technical field：
The invention category assembly technology field.It is real to solve enclosed gear pump assembling rear enclosed inside cavity gear face
The measuring method in border gap.
Background technology：
According to the actual measured results of gear pump discharge, the gear oil pump feed stream of identical end clearance under free state is found
Amount differs greatly, and the end clearance of gear and housing is the principal element for influenceing fuel delivery.Traditional assembly technology is only before dress
The end clearance of free state lower tooth wheel pump is measured, in order to improve the flow of gear pump while ensure its safe and reliable work,
Need to judge the situation of change that gear pump assembles pump housing mated condition after compression, find the alignment measurement side of actual end clearance
Method.
Through inquiring about, retrieving China State Intellectual Property Office website, GOOGLE patent search systems and other related web sites, still
The pertinent literature and report similar to present invention are not found.
The content of the invention
(1) goal of the invention
A kind of method for measuring enclosed gear pump assembling rear end face gap is provided, it is simultaneous for accurately controlling Amount of actual oil supply
Care for the job security of gear pump.
(2) inventive technique scheme
The pump case group of research is made up of 6 grades of gear pumps, 1 grade of oil feed pump, 5 grades of scavenge oil pumps.Wherein oil feed pump and 4 grades of oil returns
By six step stay bolt assembled in series together, 1 grade of scavenge oil pump is separately installed in addition for pump.Referring to accompanying drawing 3, wherein last 1
Level scavenge oil pump is not drawn into.
The operating procedure of the invention：(installation step)
For accurate judgement and the actual end clearance of gear pump is controlled, by fabricating out the profile with pump case intracoelomic cavity
One group of pad of shape identical (is grouped, every group of thickness difference is 0.01mm) by thickness, is loaded in the pump housing and is fastened on request, with pump group
Driving torque size after assembling judges the actual end face mated condition of gear pump.Shown in gasket shape and rigging position as Fig. 2,3.
Step：Measuring the end clearance under free state, --- choosing pad --- prepackage pump group ---, the rotation of measurement shaft end is turned round
Square
1) end clearance under free state is measured
Driving gear shaft 2, driven gear 3 are loaded in the teeth groove of fuel feeding pump case 1；Measured with amesdial under free state
End clearance A, see Fig. 1.Record the average value of multiple measurement results.
2) pad is chosen
According to work step 1) in obtained end clearance A, the pad 4 of respective thickness, thickness H are selected in some pad groups
=(A-0.04) ± 0.005mm.Thickness difference is 0.01mm between pad in pad group.
3) pump group is pre-installed
The pad chosen is assembled to the position of measuring pump end clearance under free state, then by pump cover, pump case at different levels
Body and gear are attached to together successively, the insertion process axle 7 in axis hole, pump group are integrally sent into big housing 6, referring to accompanying drawing 3.With
Torque wrench tightens clamp nut by 20Nm.
4) shaft end driving torque is measured
Moment of torsion input adapter 5 is coupled by external splines with the input of pump group, is turned with the input of torque wrench driving torque
Joint 5 rotates pump group to pump group input torque F, and record pump group starts torque value during smooth rotation.Sentenced according to the torque value
Whether disconnected spacer thickness is suitable：
(1) actual rotation torque value is more than 0.12Nm, changes the small pad of thickness；
(2) actual rotation torque value is less than 0.08Nm, changes the big pad of thickness；
(3) actual rotation torque value is within 0.08~0.12Nm scopes, and spacer thickness accurately reflects selected by explanation
Actual end clearance after assembling.
When actual rotation torque value is above-mentioned (1), (2) situation, chooses pad again in group on request, decompose pump
Group simultaneously re-executes work step 3), 4) meet (3) article situation to actual rotation torque value.
Special suggestion
If changing pad in the range of pad group, shaft end driving torque value control requires after can not meeting assembling, presses
Actual conditions repair pump case.When actual rotation torque value is excessive, pump case bottom land is repaired；Actual rotation torque value is too small
When, repair pump case teeth groove upper surface.
Prepackage pump group is decomposed, removes pad, then formally assembles pump group.Pressure before measurement pump discharge, pump on request.
(3) beneficial effect
Using this method can accurate measurement assembling after enclosed gear pump actual end clearance, and according to this adjustment control close
The fuel delivery of formula gear pump, while compromise between security, and be proven by flow test and installation test.In enclosed gear
Pump manufacturing technology field has good application value.
Brief description of the drawings
Fig. 1：Free state lower surface clearance measurement schematic diagram；
Fig. 2：Gasket shape schematic diagram；
Fig. 3：Pad rigging position schematic diagram；
Fig. 4：Pad is assembled to schematic diagram after enclosed gear pump；
1- fuel feeding pump case, 2- driving gear shafts, 3- driven gears, 4- pads, 5- moments of torsion input adapter, the big shells of 6-
Body, 7- techniques axle, 8- pump cases at different levels and gear, F- input torques.
Embodiment
The present invention is described in further detail below.Equipment adjustment process：
1) end clearance under free state is measured
Driving gear shaft (2), driven gear (3) are loaded in the teeth groove of fuel feeding pump case (1)；Measured freely with amesdial
End clearance (A) under state, measure the size of the end clearance；The average value of measurement result is recorded, measuring point and data are shown in Table
1。
The free state lower surface gap actual value (mm) of table 1
Calculated by data in table 1, the average value in free state lower surface gap is 0.066mm.
2) pad is chosen
With work step 1) in obtained end clearance A calculate the thickness of pad 4, H=(0.066-0.04) ± 0.005.In group
Pad thick middle selection 0.03mm.
3) pump group is pre-installed
The pad chosen is assembled at the end clearance in step 1), then by pump cover, pump case at different levels and gear according to
It is secondary to be attached to together, insertion process axle (7) in axis hole, the pump case group assembled is integrally sent into big housing (6), uses moment of torsion
Spanner tightens clamp nut by 20Nm.
4) shaft end driving torque measures
Moment of torsion input adapter (5) is coupled by external splines with the input of pump case group, described in torque wrench drives
Moment of torsion input adapter (5) rotates pump case group to pump case group input torque (F), and record pump case group can just be smooth
Torque value during rotation, pad is changed according to the torque value or draws actual gap：
(1) torque value is more than 0.12Nm, changes the small pad of thickness, and decomposes pump case group, re-executes work step 3)；
(2) torque value is less than 0.08Nm, changes the big pad of thickness, and decomposes pump case group, re-executes work step 3)；
(3) torque value is within 0.08~0.12Nm scopes, using now selected spacer thickness as the reality after assembling
Border end clearance.
Torque value when surveying pump group smooth rotation is 0.16Nm.
Wherein selected pad is profiled spacer.
Repair (work step does not perform herein) and pump group ... is formally assembled, measure pressure before pump discharge, pump on request.
Claims (2)
- A kind of 1. method for measuring the actual end clearance of enclosed gear pump, it is characterised in that：Comprise the following steps：1) end clearance under free state is measuredDriving gear shaft (2), driven gear (3) are loaded in the teeth groove of fuel feeding pump case (1)；Free state is measured with amesdial Under end clearance (A), i.e. difference in height between driven gear (3) upper surface and oil feed pump housing end face；2) pad is chosenAccording to the end clearance (A) obtained in step 1), the pad (4) of selection respective thickness, described phase in pad group The thickness (H) is answered to be：Thickness (H)=end clearance (A) -0.04 ± 0.005mm, thickness difference is between pad in the shim pack 0.01mm；3) pump group is pre-installedThe pad chosen (4), driving gear shaft (2), driven gear (3) are loaded in the teeth groove of fuel feeding pump case (1) so that choosing Good pad is assembled at the end clearance in step 1), then pump cases at different levels and gear (8), pump cover are assembled into one successively Rise, insertion process axle (7) forms pump case group in axis hole, and the pump case group assembled is integrally sent into big housing (6), uses Torque wrench tightens clamp nut by 20Nm；4) shaft end driving torque is measuredMoment of torsion input adapter (5) is coupled by external splines with the input of pump case group, it is defeated with torque wrench driving torque Enter adapter (5) makes pump case group to rotate to pump case group input torque (F), records torque value now, according to The torque value changes pad or draws actual gap：(1) torque value is more than 0.12Nm, and decomposes pump case group, changes the small pad of thickness, re-executes work step 3)；(2) torque value is less than 0.08Nm, and decomposes pump case group, changes the big pad of thickness, re-executes work step 3)；(3) torque value is within 0.08~0.12Nm scopes, using now selected spacer thickness as the actual end after assembling Face gap.
- A kind of 2. method for measuring the actual end clearance of enclosed gear pump according to claim 1, it is characterised in that：It is described Pad be profiled spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510270634.3A CN106289024B (en) | 2015-05-25 | 2015-05-25 | A kind of method for measuring the actual end clearance of enclosed gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510270634.3A CN106289024B (en) | 2015-05-25 | 2015-05-25 | A kind of method for measuring the actual end clearance of enclosed gear pump |
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| Publication Number | Publication Date |
|---|---|
| CN106289024A CN106289024A (en) | 2017-01-04 |
| CN106289024B true CN106289024B (en) | 2018-03-02 |
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| CN201510270634.3A Active CN106289024B (en) | 2015-05-25 | 2015-05-25 | A kind of method for measuring the actual end clearance of enclosed gear pump |
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| CN107576250B (en) * | 2017-08-23 | 2019-07-19 | 中航飞机起落架有限责任公司 | A kind of the back lash detection device and detection method of aircraft diverter bevel gear pair |
| CN107883842A (en) * | 2017-09-20 | 2018-04-06 | 陕西法士特汽车传动集团有限责任公司 | A kind of power takeoff cone bearing gap adjustment test measuring device and method |
| CN113983169B (en) * | 2021-10-28 | 2023-09-29 | 广州文冲船厂有限责任公司 | Rudder stock sealing tool and rudder stock sealing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004294094A (en) * | 2003-03-25 | 2004-10-21 | Sumitomo Denko Shoketsu Gokin Kk | Method and apparatus for measuring gear combinatorial gap |
| CN101464145A (en) * | 2009-01-09 | 2009-06-24 | 荆州恒盛汽车系统有限公司 | Test method for vehicle direction converter assembly clearance |
| CN102022318A (en) * | 2010-12-16 | 2011-04-20 | 北京航科发动机控制系统科技有限公司 | Method for ensuring gear pump gap by matching jump |
| CN203241003U (en) * | 2013-05-27 | 2013-10-16 | 宁波市镇海金雳机械制造有限公司 | Oil pump end clearance measuring fixture |
| CN203364881U (en) * | 2013-08-14 | 2013-12-25 | 合肥长源液压股份有限公司 | Tool for synchronously detecting coaxiality and pre-tightening torque of gear pump |
| CN103711710A (en) * | 2013-12-10 | 2014-04-09 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Clearance adjustment method for aero DC (Direct Current) electropump |
| CN203550874U (en) * | 2013-11-05 | 2014-04-16 | 三江瓦力特特种车辆有限公司 | Oil pump axial clearance detection device |
-
2015
- 2015-05-25 CN CN201510270634.3A patent/CN106289024B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004294094A (en) * | 2003-03-25 | 2004-10-21 | Sumitomo Denko Shoketsu Gokin Kk | Method and apparatus for measuring gear combinatorial gap |
| CN101464145A (en) * | 2009-01-09 | 2009-06-24 | 荆州恒盛汽车系统有限公司 | Test method for vehicle direction converter assembly clearance |
| CN102022318A (en) * | 2010-12-16 | 2011-04-20 | 北京航科发动机控制系统科技有限公司 | Method for ensuring gear pump gap by matching jump |
| CN203241003U (en) * | 2013-05-27 | 2013-10-16 | 宁波市镇海金雳机械制造有限公司 | Oil pump end clearance measuring fixture |
| CN203364881U (en) * | 2013-08-14 | 2013-12-25 | 合肥长源液压股份有限公司 | Tool for synchronously detecting coaxiality and pre-tightening torque of gear pump |
| CN203550874U (en) * | 2013-11-05 | 2014-04-16 | 三江瓦力特特种车辆有限公司 | Oil pump axial clearance detection device |
| CN103711710A (en) * | 2013-12-10 | 2014-04-09 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Clearance adjustment method for aero DC (Direct Current) electropump |
Non-Patent Citations (1)
| Title |
|---|
| 柴油机齿轮式机油泵的检修;赵立辉;《农机使用与维修》;20140731(第7期);第77页 * |
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| CN106289024A (en) | 2017-01-04 |
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Address after: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO,LTD. Address before: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE Corp.,PLC Address after: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee after: AVIC AVIATION ENGINE Corp.,PLC Address before: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee before: XI'AN AVIATION POWER Co.,Ltd. |