CN106643389A - Method for detecting grouping location degree of multistage segmented gear pump shells - Google Patents
Method for detecting grouping location degree of multistage segmented gear pump shells Download PDFInfo
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- CN106643389A CN106643389A CN201611170924.1A CN201611170924A CN106643389A CN 106643389 A CN106643389 A CN 106643389A CN 201611170924 A CN201611170924 A CN 201611170924A CN 106643389 A CN106643389 A CN 106643389A
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- pump case
- mandrel
- driven
- epimere
- position degree
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- General Physics & Mathematics (AREA)
- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of mechanical processing, and particularly relates to a method for detecting the grouping location degree of multistage segmented gear pump shells. The method comprises the steps of respectively inserting a driving process core shaft and a driven process core shaft into a driving shaft hole and a driven shaft hole from top to bottom, detecting the grouping location degree of the driving shaft hole and the driven shaft hole in each stage of pump shell at the lower segment, wherein the location degree of each stage of pump shell of the lower segment is detected to be qualified when the driving process core shaft and the driven process core shaft can be inserted to the bottom parts of the driving shaft hole and the driven shaft hole respectively; enabling a lower-stage pump shell at an upper segment to sleeve the driving process core shaft and the driven process core shaft, wherein the location degree of the lower-stage pump shell at the upper segment is qualified if the lower-stage pump shell at the upper segment can sleeve the driving process core shaft and the driven process core shaft; and enabling an upper-stage pump shell at the upper segment to sleeve the driving process core shaft and the driven process core shaft, and fixedly installing the upper-stage pump shell at the upper segment and the lower-stage pump shell at the upper segment on a pump set shell, wherein if the upper-stage pump shell at the upper segment and the lower-stage pump shell at the upper segment can be installed in place, the location degree of the upper-stage pump shell at the upper segment is qualified. The detection method provided by the invention does not increase original processing procedures and the manufacturing difficulty of each stage of pump shell and has wide application values in the technical field of multistage pump set processing and manufacturing.
Description
【Technical field】
The invention belongs to mechanical processing technique field, and in particular to one kind detection multistage subsection formula gear pump case block position
The method of degree.
【Background technology】
According to multistage subsection formula gear pump working service situation, the state of wear using rear pump gears at different levels and housing is found
There is larger difference, or even part pump occurs in that the abnormal damage for affecting normal work using in.Analyze this heavy wear or
The reason for abnormal damage, it is believed that the relative position between multistage pump group housing affects very big to the working condition of pump, needs to improve
The block position degree of all pump cases of a whole set of pump group.Pump case body processing technologies at different levels and precision improvement are difficult, need to find effectively
Solution.
Jing inquiries, retrieval China national intellectual property board web, GOOGLE patent search systems and other related web sites, still
It was found that the pertinent literature similar to present invention and report.
【The content of the invention】
In order to solve the problems of the prior art, control reduces pump case gear mounting shaft holes at different levels in free state and work
State difference after loading, it is an object of the invention to provide a kind of determination multistage subsection formula gear pump case block position degree
Method, solves in the case of pump case body processing technologies at different levels and precision improvement difficulty, multistage subsection formula gear pump case work
The high-precision block position degree difficult problem that work needs, it is ensured that the job security of pump group.
The purpose of the present invention is by following technical solution realizing：
A kind of method of detection multistage subsection formula gear pump case block position degree, comprises the steps：
Step 1, first by hypomere pump case at different levels by step stay bolt location and installation in pump group housing；
Step 2, then the active process mandrel and driven technique mandrel that coordinate with active axis hole and driven-shaft hole respectively are divided
Do not insert from top to bottom in active axis hole and driven-shaft hole, the active axis hole and driven-shaft hole in detection hypomere pump case at different levels
Block position degree；
When active process mandrel and driven technique mandrel can respectively insert the bottom of active axis hole and driven-shaft hole, then
Hypomere pump case position degree at different levels is qualified；
When active process mandrel and driven technique mandrel run into impenetrable pump case when lower slotting, then hypomere is disassembled
Pump cases at different levels simultaneously change impenetrable pump case, then hypomere pump case at different levels is passed through into bucket step bolt location and installation in pump
In group housing, then detected by active process mandrel and driven technique mandrel, until active process mandrel and driven technique mandrel
The bottom of active axis hole and driven-shaft hole can respectively be inserted；
Step 3, then epimere subordinate pump case is respectively fitted over into active process by active axis hole thereon and driven-shaft hole
On mandrel and driven technique mandrel, if it is possible to put, then epimere subordinate pump case position degree is qualified, if can not put,
Epimere subordinate pump case is changed, until can be enclosed within active process mandrel and driven technique mandrel, driven technique mandrel of dismantling
The handle at top；
Step 4, then by epimere higher level pump case by active shaft hole sleeve thereon on active process mandrel, then by epimere
Higher level's pump case and epimere subordinate pump case are fixedly mounted on the upper end of pump group housing, if epimere higher level pump case can be installed
In place, then the position degree of epimere higher level pump case is qualified, if cannot be attached to position, changes epimere higher level pump case and continues to pacify
Dress, until being mountable to position.
In the step 1, the moment of torsion that 19.9-20.1Nm is applied on the step stay bolt is fastened.
In the step 2, when active process mandrel and driven technique mandrel insert respectively active axis hole and driven-shaft hole
Behind bottom, then active process mandrel and driven technique mandrel are rotated respectively, when rotating fluent, then hypomere pump case position at different levels
Degree of putting is qualified；When rotation has retardance, then to change active axis hole and/or driven-shaft hole abrasion mark in hypomere pump case most obvious
Pump case, detect the position degree of the hypomere pump case of replacing again according still further to step 2, until rotation it is fluent.
In the step 4, after epimere higher level's pump case is mountable to position, then active process mandrel is rotated, work as rotation
When fluent, then the position degree of epimere higher level pump case is qualified；When rotation has retardance, then change epimere subordinate pump case and upper
Section higher level's pump case, the epimere subordinate pump case of replacing and the position degree of epimere higher level's pump case are detected according still further to step 4 again,
Until rotation is fluent.
In the step 4, the driven technique mandrel is buried and is mounted in inside pump case, and the upper end of driven technique mandrel is stretched into
In section higher level's pump case from the location hole of moving mandrel.
In the step 2- step 4, the active axis hole and driven-shaft hole of the gear pump cases at different levels and long with step
The position degree of the dowel hole that bolt coordinates is no more than 0.02mm.
In the step 2- step 4, the nominal value active axis hole more each than pump cases at different levels of the active process axle diameter
The little 0.001～0.002mm of minimum diameter, tolerance be -0.003mm；The nominal value of driven technique axle diameter is than pump cases at different levels
Little 0.001～the 0.002mm of minimum diameter of each driven-shaft hole of body, tolerance is -0.003mm.
In the step 4, the epimere higher level pump case and epimere subordinate pump case are mounted by means of bolts on pump group
The upper end of housing, the tightening torque of bolt is 23.9-24.1Nm.
After detecting that all pump case position degrees are qualified, to be mountable to the hypomere pump cases at different levels of position, pump group housing,
Step stay bolt, epimere subordinate pump case and epimere higher level pump case carry out complete head-stamp.
When complete head-stamp is carried out, it is marked in each pump case outer wall and step stay bolt head.
The present invention has the advantages that：
The present invention is divided by the active process mandrel and driven technique mandrel for coordinating with active axis hole and driven-shaft hole respectively
Do not insert from top to bottom in active axis hole and driven-shaft hole, the active axis hole and driven-shaft hole in detection hypomere pump case at different levels
Block position degree, when active process mandrel and driven technique mandrel can respectively insert the bottom of active axis hole and driven-shaft hole
When, then hypomere pump case position degree at different levels is qualified；By epimere subordinate pump case by active axis hole thereon and driven-shaft hole point
It is not enclosed within active process mandrel and driven technique mandrel, if it is possible to put, then epimere subordinate pump case position degree is qualified；Will
Epimere higher level pump case by active shaft hole sleeve thereon on active process mandrel, then by under epimere higher level pump case and epimere
Level pump case is fixedly mounted on the upper end of pump group housing, if epimere higher level's pump case is mountable to position, epimere higher level's pump
The position degree of housing is qualified；The detection method practical application for many years, have passed through the test in factory's each stage and dispatch from the factory using examination,
Wear-out failure common after multistage subsection formula gear pump work is solved, method simple practical does not increase pump cases at different levels
Original processing technique and manufacture difficulty, have wide using value in multistage pump group processing and manufacturing technical field.
Further, when active process mandrel and driven technique mandrel insert respectively the bottom of active axis hole and driven-shaft hole
Afterwards, then respectively active process mandrel and driven technique mandrel are rotated, when rotating fluent, then hypomere pump case position degree at different levels
It is qualified, therefore by simulating the rotation of driving shaft and driven shaft, further enhance the accuracy of detection of position degree, it is ensured that detection
Hypomere pump case at different levels afterwards is not easy to wear at work.
Further, after epimere higher level's pump case is mountable to position, then active process mandrel is rotated, it is without hindrance when rotating
When stagnant, then the position degree of epimere higher level pump case is qualified, further enhances the accuracy of detection of position degree, it is ensured that after detection
Epimere pump case at different levels is not easy to wear at work.
Further, driven technique mandrel is buried and is mounted in inside pump case, the upper end of driven technique mandrel is stretched on epimere
In level pump case from the location hole of moving mandrel, the accuracy of detection of detection epimere higher level's pump case position degree is further ensured.
Further, after detecting that all pump case position degrees are qualified, to be mountable to position hypomere pump cases at different levels,
Pump group housing, step stay bolt, epimere subordinate pump case and epimere higher level pump case carry out complete head-stamp, therefore, it is possible to basis
The mark of head-stamp is stored to pump case and installed, easy to use, is difficult confusion, and has trackability.
Further, axial pretightening is applied by the fastening requirements during combination adjustment as needed for pump group working condition
Load, it is ensured that the required precision of pump group working condition.
【Description of the drawings】
Fig. 1 is the preliminary assembling schematic diagram of multistage pump group housing；
Fig. 2 is complete pump group housing assembling schematic diagram.
Wherein, 1- active process mandrel, the driven technique mandrels of 2-, 3- hypomere one-level pump cases, 4- hypomere two stage pump housings,
5- hypomere three-level pump cases, 6- hypomere level Four pump cases, 7- hypomere Pyatyi pump cases, six grades of pump cases of 8- hypomeres, 9- pump group shells
Body, 10- step stay bolts, 11- epimeres subordinate pump case, 12- epimere higher level's pump cases, 12-1- location holes, 13- bolts.
【Specific embodiment】
Come that the present invention is further illustrated with reference to the accompanying drawings and examples.
As Figure 1-Figure 2, the method for a kind of detection multistage subsection formula gear pump case block position degree of the invention, bag
Include following steps：
Step 1, first passes through the location and installation of step stay bolt 10 in pump group housing 9 by hypomere pump case at different levels, and step is long
The moment of torsion for applying 19.9-20.1Nm on bolt 10 is fastened；
Step 2, then by the active process mandrel 1 for coordinating with active axis hole and driven-shaft hole respectively and driven technique mandrel 2
Insert from top to bottom in active axis hole and driven-shaft hole respectively, detect the active axis hole and driven-shaft hole in hypomere pump case at different levels
Block position degree；
When active process mandrel 1 and driven technique mandrel 2 can respectively insert the bottom of active axis hole and driven-shaft hole,
Then hypomere pump case position degree at different levels is qualified (as shown in Figure 1)；
When active process mandrel 1 and driven technique mandrel 2 run into impenetrable pump case when lower slotting, then disassemble down
Section pump case at different levels simultaneously changes impenetrable pump case, then hypomere pump case at different levels is passed through into the location and installation of bucket step bolt 10
In pump group housing 9, then detected by active process mandrel 1 and driven technique mandrel 2, until active process mandrel 1 and driven
Technique mandrel 2 can respectively insert the bottom of active axis hole and driven-shaft hole；
Step 3, then epimere subordinate pump case 11 is respectively fitted over into active work by active axis hole thereon and driven-shaft hole
On skill mandrel 1 and driven technique mandrel 2, if it is possible to put, then 11 position degrees of epimere subordinate pump case are qualified, if can not cover
On, then epimere subordinate pump case 11 is changed, until can be enclosed within active process mandrel 1 and driven technique mandrel 2, dismantle driven
The handle (as shown in Figure 2) at the top of technique mandrel 2；
Step 4, then by epimere higher level pump case 12 by active shaft hole sleeve thereon on active process mandrel 1, then will
Epimere higher level pump case 12 and epimere subordinate pump case 11 are fixedly mounted on the upper end of pump group housing 9, bolt 13 by bolt 13
Tightening torque be 23.9-24.1Nm, if epimere higher level pump case 12 is mountable to position, epimere higher level pump case 12
Position degree it is qualified, if cannot be attached to position, change epimere higher level pump case 12 and continue to install, until being mountable to position
(as shown in Figure 2)；
Driven technique mandrel 2 is buried and is mounted in inside pump case, when epimere higher level pump case 12 is installed in place, driven technique
The upper end of mandrel 2 is stretched into epimere higher level pump case 12 from the location hole 12-1 of moving mandrel, and bolt 13 is securable to position.
After detecting that all pump case position degrees are qualified, hypomere pump cases at different levels, the pump group housing to being mountable to position
9th, step stay bolt 10, epimere subordinate pump case 11 and epimere higher level pump case 12 carry out complete head-stamp, are carrying out complete head-stamp
When, it is marked in each pump case outer wall and step stay bolt head.
As shown in figure 1, when active process mandrel 1 and driven technique mandrel 2 insert respectively active axis hole and driven-shaft hole
Behind bottom, then active process mandrel 1 and driven technique mandrel 2 are rotated respectively, when rotating fluent, then hypomere pump case at different levels
Position degree is qualified；When rotation has retardance, then all hypomere pump cases are changed, according still further to step 2 hypomere of replacing is detected again
The position degree of pump case, until rotation is fluent.
As shown in Fig. 2 after epimere higher level pump case 12 is mountable to position, then active process mandrel 1 is rotated, work as rotation
When fluent, then the position degree of epimere higher level pump case 12 is qualified；When rotation has retardance, then change epimere subordinate pump case 11
With epimere higher level pump case 12, the epimere subordinate pump case 11 and epimere higher level's pump case of replacing are detected again according still further to step 4
12 position degree, until rotation is fluent.
As depicted in figs. 1 and 2, the active axis hole and driven-shaft hole of gear pump cases at different levels and match somebody with somebody with step stay bolt 10
The position degree of the dowel hole of conjunction is no more than 0.02mm, the nominal value master more each than pump cases at different levels of the diameter of active process mandrel 1
Little 0.001～the 0.002mm of minimum diameter of shaft hole, tolerance is -0.003mm；The nominal value of the driven diameter of technique mandrel 2 is than each
Little 0.001～the 0.002mm of minimum diameter of each driven-shaft hole of level pump case, tolerance is -0.003mm.
Embodiment
Referring to Fig. 2, with totally 6 grades of pump group housing, 1 grade of fuel feeding pump case, the segmented tooth wheel pump of 5 grades of oil return pump cases
As a example by housing.Fuel feeding pump case and wherein 4 grades oil return pump cases are and another by together with six assembled in series of step stay bolt 10
Outer 1 grade of oil return pump case forms segmented pump group housing.
Apply the method for axial load in the present invention by simulation, reduce free state with pump group housing axis hole position under operating conditions
The difference put, and manufactured and designed the precision process mandrel of detection, piecewise combination adjusts each section of pump case.
This method has following characteristics：
1) on the basis of single-piece work technique and precision are difficult to continue to lift up, combined by the substep to pump cases at different levels
With the method for adjustment, multistage subsection formula high class gear pump case block position degree is improve, it is ensured that the reliability of pump group work
Property.
2) fastening requirements during combination adjustment as needed for pump group working condition apply axial pretightening load, it is ensured that
The required precision of pump group working condition.
3) combining the step of adjusting is：
Step 1：Assembling 5 grades of pump cases of hypomere, respectively hypomere one-level to six grades of pump cases (3 to 8), with pump group housing 9
Together, it is that step stay bolt 10 is located by connecting with precision bolt, hypomere institute is fastened by the imposed load of step stay bolt 10
There is pump case；
Step 2：It is that active process mandrel 1 and driven technique mandrel 2 detect respectively driving and driven axis hole with precision process mandrel
Block position degree；
Step 3：To actually detected undesirable situation, decompose hypomere pump case at different levels, allotment wherein technique mandrel
The respective housings that detection cannot pass through, then assembling detection again, block position degree detection takes out active process after meeting the requirements
Mandrel 1；
Step 4：Assembling epimere two-stage pump case (11,12) in the hypomere pump case for adjusting and combining, will be from starting building
The handle of the upper end of skill mandrel 2 is pulled down and buried and is mounted in inside pump case, and imposed load is fastenedly connected all pump cases of upper-lower section；
Step 5：Pump group active axis hole block position degree is detected with active process mandrel 1；
Step 6：To actually detected undesirable situation in previous step, decompose epimere pump case, allotment wherein technique
The respective housings that mandrel detection cannot pass through, again assembling detection；
Step 7：After detection is qualified, decompose the complete head-stamp of mark.
The nominal value axis hole minimum dimension more each than pump case of described driving and driven technique axle diameter is little by 0.001～
0.002mm, tolerance is -0.003mm, and circular runout is not more than 0.003mm；Active process mandrel is multistage step, from starting building
Skill mandrel axial length controls to guarantee to bury to be mounted in pump group；Driving and driven technique mandrel with rotation handle, wherein leading
Skill of starting building mandrel handle is integrated non-dismountable formula with detection section, and driven technique mandrel rotary handle is screw thread cooperation with detection section
Detachable style.
The technique mandrel of present invention design is divided to driving and driven totally two, while the driving and driven shaft hole matching with 6 grades of pump cases,
Wherein active axis hole mandrel is step axle.Combination as Fig. 1, shown in 2.
Process route：Just load a section pump case (5 grades) and pump group housing 9 --- detection --- allotment hypomere pump case and group
--- --- mark is decomposed in detection --- allotment hypomere pump case simultaneously assembles detection --- to upper and lower section of pump case of assembling for dress detection.
1) just a section pump case (5 grades) is loaded
See Fig. 1, connected by step stay bolt 5 grades of hypomeres pump case at different levels (3～8) are fitted together, together fill
Enter in pump group housing 9；Fastened with step stay bolt 10, apply moment of torsion 20Nm.
2) detect
Driving and driven technique mandrel (1,2) is inserted respectively work step 1) in the driving and driven axis hole of hypomere pump case that installs, inspection
Axis hole block position degree Ф 0.02mm are surveyed, Fig. 1 is seen.Require：Technique mandrel can smoothly insert axis hole, rotate fluent.
3) allocate hypomere pump case and assemble detection
The 2) work step detection is qualified does not perform the work step；
The 2) work step detect that the unqualified time-division solves hypomere pump case, by detection actual conditions changing section pump case and again
Perform the 1), 2) work step, the part pump case is that active axis hole and/or driven-shaft hole abrasion mark are most bright in hypomere pump case
Aobvious pump case.
4) the upper and lower level pump case of epimere is assembled
Active process mandrel 1 and driven technique mandrel 2 are inserted in the housing at different levels of bottom, by remaining 1 grade of epimere subordinate
Pump case 11 is assembled into the upper end of pump group housing 9；Rotation active process mandrel 1 and driven technique mandrel 2, rotate fluent.Tear open
Under driven technique mandrel 2 rotary handle, the upper end of driven technique mandrel 2 is stretched into epimere higher level pump case 12 from moving mandrel
In location hole 12-1；Epimere higher level pump case 12 is assembled into epimere subordinate pump case 11, is fastenedly connected with bolt 13, applied
Moment of torsion 24Nm, is shown in Fig. 2.
5) detect
The mandrel rotation of rotation active process is fluent, detects axis hole block position degree Ф 0.02mm, sees Fig. 2.
6) allocate hypomere pump case and assemble detection
The 5) work step detection is qualified does not perform the work step；
The decomposes epimere higher level pump case 12 and epimere subordinate pump case 11 when 5) work step detection is unqualified, actual by detection
Situation exchange pump case and re-execute the 4), 5) work step.
7) mark is decomposed
Decompose position degree in groups and detect qualified pump case, mark on request in each pump case outer wall, shoulder bolt head
Corresponding complete trace.
Claims (10)
1. it is a kind of detection multistage subsection formula gear pump case block position degree method, it is characterised in that comprise the steps：
Step 1, it is first that hypomere pump case at different levels is interior in pump group housing (9) by step stay bolt (10) location and installation；
Step 2, then by the active process mandrel (1) for coordinating with active axis hole and driven-shaft hole respectively and driven technique mandrel (2)
Insert from top to bottom in active axis hole and driven-shaft hole respectively, detect the active axis hole and driven-shaft hole in hypomere pump case at different levels
Block position degree；
When active process mandrel (1) and driven technique mandrel (2) can respectively insert the bottom of active axis hole and driven-shaft hole,
Then hypomere pump case position degree at different levels is qualified；
When active process mandrel (1) and driven technique mandrel (2) run into impenetrable pump case when lower slotting, then disassemble down
Section pump case at different levels simultaneously changes impenetrable pump case, then by hypomere pump case at different levels by bucket step bolt (10) positioning peace
It is mounted in pump group housing (9), then is detected by active process mandrel (1) and driven technique mandrel (2), until active process mandrel
And driven technique mandrel (2) can respectively insert the bottom of active axis hole and driven-shaft hole (1)；
Step 3, then epimere subordinate pump case (11) is respectively fitted over into active process by active axis hole thereon and driven-shaft hole
On mandrel (1) and driven technique mandrel (2), if it is possible to put, then epimere subordinate pump case (11) position degree is qualified, if not
Can put, then epimere subordinate's pump case (11) be changed, until active process mandrel (1) and driven technique mandrel (2) can be enclosed within
On, the handle at the top of driven technique mandrel (2) of dismantling；
Step 4, then by epimere higher level's pump case (12) by active shaft hole sleeve thereon on active process mandrel (1), then will
Epimere higher level's pump case (12) and epimere subordinate pump case (11) are fixedly mounted on the upper end of pump group housing (9), if on epimere
Level pump case (12) is mountable to position, then the position degree of epimere higher level pump case (12) is qualified, if cannot be attached to position,
Change epimere higher level's pump case (12) to continue to install, until being mountable to position.
2. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
It is that in the step 1, the moment of torsion that 19.9-20.1Nm is applied on the step stay bolt (10) is fastened.
3. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
It is, in the step 2, when active process mandrel (1) and driven technique mandrel (2) insert respectively active axis hole and driven-shaft hole
Bottom after, then rotate active process mandrel (1) and driven technique mandrel (2) respectively, when rotation is fluent, then hypomere is at different levels
Pump case position degree is qualified；When rotation has retardance, then change active axis hole and/or driven-shaft hole Friction mark in hypomere pump case
The most obvious pump case of mark, the position degree of the hypomere pump case of replacing is detected according still further to step 2 again, until rotation is fluent.
4. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
It is in the step 4, after epimere higher level's pump case (12) is mountable to position, then to rotate active process mandrel (1), when
When rotating fluent, then the position degree of epimere higher level pump case (12) is qualified；When rotation has retardance, then change epimere subordinate pump
Housing (11) and epimere higher level's pump case (12), according still further to step 4 epimere subordinate pump case (11) of replacing and upper is detected again
The position degree of section higher level's pump case (12), until rotation is fluent.
5. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
It is that in the step 4, the driven technique mandrel (2) is buried and is mounted in inside pump case, and the upper end of driven technique mandrel (2) is stretched
The location hole (12-1) entered on epimere higher level's pump case (12) from moving mandrel is interior.
6. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
Be, in the step 2- step 4, the active axis hole and driven-shaft hole of the gear pump cases at different levels and with step stay bolt
(10) position degree of the dowel hole for coordinating is no more than 0.02mm.
7. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
It is, in the step 2- step 4, the nominal value active axis hole more each than pump cases at different levels of active process mandrel (1) diameter
The little 0.001～0.002mm of minimum diameter, tolerance be -0.003mm；The nominal value of driven technique mandrel (2) diameter is than pumps at different levels
Little 0.001～the 0.002mm of minimum diameter of each driven-shaft hole of housing, tolerance is -0.003mm.
8. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
It is that in the step 4, the epimere higher level pump case (12) and epimere subordinate pump case (11) are pacified by the way that bolt (13) is fixed
The upper end of pump group housing (9) is mounted in, the tightening torque of bolt (13) is 23.9-24.1Nm.
9. it is according to claim 1 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
Be, after detecting that all pump case position degrees are qualified, to be mountable to the hypomere pump cases at different levels of position, pump group housing (9),
Step stay bolt (10), epimere subordinate pump case (11) and epimere higher level's pump case (12) carry out complete head-stamp.
10. it is according to claim 9 it is a kind of detection multistage subsection formula gear pump case block position degree method, its feature
It is, when complete head-stamp is carried out, to be marked in each pump case outer wall and step stay bolt head.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110081791A (en) * | 2019-04-30 | 2019-08-02 | 江苏神力齿轮冷挤有限公司 | A kind of output gear position degree detecting tool with internal tooth |
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| CN205561699U (en) * | 2016-02-02 | 2016-09-07 | 西安法士特汽车传动有限公司 | Utensil is examined to blind hole locations degree |
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| SU1551963A1 (en) * | 1988-01-05 | 1990-03-23 | Восточно-Сибирский Филиал Государственного Научно-Исследовательского Института Автомобильного Транспорта | Method of determining misalignment of successive row of holes in a part |
| CN102288083A (en) * | 2011-05-13 | 2011-12-21 | 无锡小天鹅精密铸造有限公司 | Method and gauge for detecting true position of pump shell |
| CN102322825A (en) * | 2011-06-02 | 2012-01-18 | 南京航空航天大学 | Optical measuring system and method for coaxiality of extra-long-hole part |
| CN202562400U (en) * | 2012-05-18 | 2012-11-28 | 河南省中原内配股份有限公司 | Special gauge for measuring excircle position of cast-in cylinder sleeve |
| CN202719963U (en) * | 2012-06-06 | 2013-02-06 | 沈阳飞机工业（集团）有限公司 | Self-centering integrated measuring head device of hole series part coaxiality measurement |
| CN204228094U (en) * | 2014-11-26 | 2015-03-25 | 厦门跨世机械制造有限公司 | A kind of driving shaft concentricity detection frock |
| CN205332953U (en) * | 2015-12-29 | 2016-06-22 | 天津宝涞精工集团股份有限公司 | Cylinder body position degree detection device |
| CN205561699U (en) * | 2016-02-02 | 2016-09-07 | 西安法士特汽车传动有限公司 | Utensil is examined to blind hole locations degree |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110081791A (en) * | 2019-04-30 | 2019-08-02 | 江苏神力齿轮冷挤有限公司 | A kind of output gear position degree detecting tool with internal tooth |
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| Publication number | Publication date |
|---|---|
| CN106643389B (en) | 2018-11-30 |
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