CN107030644B - It is a kind of applied to long span double interference structures from centering press-loading apparatus - Google Patents
It is a kind of applied to long span double interference structures from centering press-loading apparatus Download PDFInfo
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- CN107030644B CN107030644B CN201710485950.1A CN201710485950A CN107030644B CN 107030644 B CN107030644 B CN 107030644B CN 201710485950 A CN201710485950 A CN 201710485950A CN 107030644 B CN107030644 B CN 107030644B
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- sleeve
- pedestal
- floating drum
- long span
- centering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The present invention relates to a kind of applied to long span double interference structures from centering press-loading apparatus, including pedestal, sleeve and gland.Seam allowance and centre bore in pedestal outer circle is coaxial, and centre hole of base is the benchmark of the device, is for inserting frame machining benchmark cylinder.The internal diameter of the centre bore is matched with the outer diameter of frame machining benchmark cylinder；One sleeve of seam allowance upper end coaxial package in pedestal outer circle, the internal diameter of the sleeve are matched with floating drum outside diameter；One gland of upper end coaxial package of sleeve.The present invention relates to a kind of applied to long span double interference structures from centering press-loading apparatus, the present invention is that a kind of pair of liquid floats design scheme of the double interference of inertia type instrument holding core component long span from centering, effective limiting frame and floating drum are after by axial force, radially play or skew, so that centering press fitting precision is guaranteed, improves the Performance And Reliability that liquid floated gyroscope uses.
Description
Technical field
The present invention relates to liquid floated gyroscope technical field, it is especially a kind of applied to long span double interference structures from centering
Press-loading apparatus.
Background technique
Liquid floated gyroscope core component is moment of momentum generator and damper in gyroscope, while carrying turning for sensor
Son and executive component rotor, are the core components of liquid floated gyroscope.Its structure composition includes frame parts and floating drum etc..In order to
Guarantee design accuracy, the both ends cooperation of frame and floating drum generallys use interference fit joint.
The cooperation of frame and floating drum, since frame and floating drum cooperate span about 60mm, both ends diameter is all larger, about 50mm and
To cross Position Design, both ends are interference fit, call double interference in the following text.Cause centering press fitting centering extremely difficult.When lower end enters,
Upper end easily glances off, and interference press fitting just, is not easy to happen to squeeze and rub, extremely small fifth wheel is generated, in gyroscope core
The small movable mass of component internal all can bring detrimental effects to gyroscopic drift.If fifth wheel is that metal raw-silk waste will cause
Gyroscope apparatus failure, or even influence performance and reliability.
Summary of the invention
In place of making up the deficiencies in the prior art, frame spar structures pressure can be reduced by providing one kind
Because of accidental injury caused by positioning shakiness during dress, press fitting difficulty is reduced, solves centering difficult point, improving gyroscope can
By property be applied to the double interference structures of long span from centering press-loading apparatus.
The purpose of the present invention is what is realized by following technological means:
It is a kind of applied to long span double interference structures from centering press-loading apparatus, it is characterised in that: including pedestal, sleeve and
Gland produces a centre bore on pedestal, and the seam allowance and centre bore in pedestal outer circle are coaxial, and the centre bore of pedestal is the device
Benchmark is for inserting frame machining benchmark cylinder, and the internal diameter of the centre bore and the outer diameter of frame machining benchmark cylinder match
It closes；One sleeve of seam allowance upper end coaxial package of pedestal, the internal diameter of the sleeve are matched with floating drum outside diameter；The upper end of sleeve
One gland of coaxial package.
Moreover, the outer diameter of the frame machining benchmark cylinder is φ 12.5mm, centre hole of base and frame machining benchmark
The fit clearance of cylinder is 0.003~0.006mm, and mating surface is about 10mm.
Moreover, the pedestal and the coaxial mounted mode of sleeve are as follows: pedestal excircle orientation seam allowance is matched with sleeve inner stopper
It closes.
Moreover, the fit clearance of the sleeve diameter and floating drum outside diameter is 0.008~0.010mm.
Moreover, the seam allowance of the gland and floating drum cooperate.
Moreover, the length sleeve is greater than floating drum length, it is respectively about 10mm or so up and down；Floating drum is in sleeve when press fitting
Sliding, unilateral gap are 0.004~0.005mm.
The advantages and positive effects of the present invention are:
1, the present invention designs device from centering because using the double interference of long span, enables frame with floating drum coaxial
Spend it is exigent under the conditions of complete press fitting so that high-precision liquid floated gyroscope core component structure obtains the problem of designing positioning
To solution, inventive structure design seems largely effective.
2, this invention ensures that two part mating surfaces and processing essence will not be destroyed in gyroscope core component assembling process
Degree eliminates the two press fitting centering problem and brings hidden danger, the reliability of gyroscope can be improved.
3, the double interference of gyroscope core component long span of the present invention are pressed from centering designs, greatly reduce assembly difficulty,
Improve assembly efficiency.
4, the present invention relates to a kind of applied to the double interference structures of long span from centering press-loading apparatus, and the present invention is a kind of right
Liquid floats inertia type instrument and keeps the double interference of core component long span from the design scheme of centering, and effective limiting frame and floating drum are by axial direction
Radially play or skew after power make centering press fitting precision be guaranteed, and improve performance that liquid floated gyroscope uses and reliable
Property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of liquid floated gyroscope core component frame, floating drum；
Fig. 2 is core component structural schematic diagram proposed by the present invention；
Fig. 3 is the schematic diagram of pedestal in the present invention；
Fig. 4 is the schematic diagram of middle sleeve of the present invention；
Fig. 5 is the schematic diagram of gland in the present invention.
Specific embodiment
Describe the embodiment of the present invention in detail with reference to the accompanying drawing；It should be noted that the present embodiment be it is narrative, no
It is restrictive, this does not limit the scope of protection of the present invention.
It is a kind of applied to long span double interference structures from centering press-loading apparatus, including pedestal 3, sleeve 4 and gland 5.Bottom
The function of seat is to provide the mounting platform of a benchmark, and the axle center of the mounting platform coaxially processes one and adds for inserting frame 1
The major diameter fit precision of the centre bore of work benchmark cylinder, the internal diameter and frame machining benchmark cylinder of the centre bore is higher.Described
The outer diameter of frame machining benchmark cylinder is φ 12.5mm, between the made centre bore in pedestal axle center and the cooperation of frame machining benchmark cylinder
Gap is (0.003~0.006) mm, and mating surface is about 10mm (length that mating surface refers to frame of reference cylinder insertion hole).
One sleeve of seam allowance upper end coaxial package of pedestal, the internal diameter of the sleeve are matched with 2 outside diameter of floating drum.Sleeve
The fit clearance of internal diameter and floating drum outside diameter is (0.008~0.010) mm,.PedestalFrame is determined in hole and frame cooperation
Frame center, pedestal excircle orientation seam allowance and sleeve inner stopper cooperate, and determine that floating drum is coaxial with frame.
The lower end of sleeve is allowed to coaxial with pedestal with the cooperation of pedestal seam allowance, hub internal bore and floating drum major diameter fit, and plays
The guiding being axially moveable and the effect from centering.Length sleeve is greater than floating drum length, is respectively about 10mm or so up and down；When press fitting
Floating drum slides in sleeve, unilateral gap (0.004~0.005) mm, and the effect of sleeve is guiding and positioning.The upper end of sleeve is same
Axle sleeve fills a gland, and the seam allowance and floating drum of the gland cooperate, the double interference self-aligning devices of entire long span in place after, from right
Middle press fitting.
In the apparatus, pedestal plays the role of forming a connecting link, and frame and floating drum center is same by both sleeve control
Axis degree, floating drum can be oriented to along hub internal bore and smoothly be installed in place, and it is long from centering to well solve floating drum both ends positioning span
The problem of, crossing and positioning the press fitting of (double interference) both ends is by pedestal and frame(frame of reference A), sleeve and floating
It is radially displaceable or crooked that cylinder major diameter fit gap effectively limits the two press fitting process.
Design principle of the invention are as follows:
1, utilize centre bore by frame machining benchmark A cylinder from the pedestal of centering control deviceInsertion, is allowed to
Coaxial with pedestal outer circle, fit clearance is (0.003~0.006) mm, and mating surface is about 10mm, and effective limiting frame is by axial force
Afterwards, radially play.
2, cooperate from centering control device pedestal excircle orientation seam allowance and sleeve inner stopper, keep it concentric with frame.Sleeve
Inner hole and floating drum outer circle fit clearance are (0.008~0.010) mm, and effect is still to limit floating drum edge when having received positioning effects
Radial-play.
3, span length is controlled by sleeve, and floating drum overall length, as being oriented to, guarantees that floating drum and frame are coaxial along sleeve lining
Under the premise of, radial deflection space compression is to minimum when being axially moveable it.Hub internal bore is with floating drum outer circle fit clearance
(0.008~0.010) mm.
4, both ends are interference fitted, and diameter is big, and span is long, and lower end is entering head guiding not just, and upper end can not enter position with regard to deflection.By
The offset of frame, floating drum radially is limited respectively in pedestal and sleeve, is crossed and is located through centralising device design scheme, so that
The press fitting precision of the double interference of long span is effectively ensured.
Claims (4)
1. it is a kind of applied to long span double interference structures from centering press-loading apparatus, it is characterised in that: including pedestal, sleeve and pressure
It covers, produces a centre bore on pedestal, the seam allowance and centre bore in pedestal outer circle are coaxial, and the centre bore of pedestal is the base of the device
Standard is for inserting frame machining benchmark cylinder, and the internal diameter of the centre bore is matched with the outer diameter of frame machining benchmark cylinder；
One sleeve of seam allowance upper end coaxial package of pedestal, the internal diameter of the sleeve are matched with floating drum outside diameter；The upper end of sleeve is same
Axle sleeve fills a gland；
The pedestal and the coaxial mounted mode of sleeve are as follows: pedestal excircle orientation seam allowance and sleeve inner stopper cooperate；The pressure
The seam allowance and floating drum of lid cooperate.
2. it is according to claim 1 it is a kind of applied to the double interference structures of long span from centering press-loading apparatus, feature exists
In: the outer diameter of the frame machining benchmark cylinder is φ 12.5mm, the cooperation of centre hole of base and frame machining benchmark cylinder
Gap is 0.003~0.006mm, and mating surface is about 10mm.
3. it is according to claim 1 it is a kind of applied to the double interference structures of long span from centering press-loading apparatus, feature exists
In: the fit clearance of the sleeve diameter and floating drum outside diameter is 0.008~0.010mm.
4. it is according to claim 1 it is a kind of applied to the double interference structures of long span from centering press-loading apparatus, feature exists
In: the length sleeve is greater than floating drum length, is respectively about 10mm or so up and down；Floating drum slides in sleeve when press fitting, unilateral
Gap is 0.004~0.005mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485950.1A CN107030644B (en) | 2017-06-23 | 2017-06-23 | It is a kind of applied to long span double interference structures from centering press-loading apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710485950.1A CN107030644B (en) | 2017-06-23 | 2017-06-23 | It is a kind of applied to long span double interference structures from centering press-loading apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN107030644A CN107030644A (en) | 2017-08-11 |
| CN107030644B true CN107030644B (en) | 2019-03-12 |
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| CN201710485950.1A Active CN107030644B (en) | 2017-06-23 | 2017-06-23 | It is a kind of applied to long span double interference structures from centering press-loading apparatus |
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Families Citing this family (1)
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| CN110788597A (en) * | 2019-11-19 | 2020-02-14 | 眉山中车制动科技股份有限公司 | Tool and method for interference press fitting of valve cover and copper sleeve of brake valve of railway vehicle |
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| JP5533541B2 (en) * | 2010-10-14 | 2014-06-25 | トヨタ自動車株式会社 | Sensor unit assembly method, manufacturing method, and jig |
| CN104723271A (en) * | 2013-12-19 | 2015-06-24 | 哈尔滨飞机工业集团有限责任公司 | Bushing installation tool |
| CN104942565A (en) * | 2015-06-26 | 2015-09-30 | 中国工程物理研究院机械制造工艺研究所 | Continuous no-impact automatic uniform-load press-fitting device |
| CN204935525U (en) * | 2015-08-31 | 2016-01-06 | 惠州比亚迪电池有限公司 | A kind of sealing strip erecting tools |
| CN204976515U (en) * | 2015-07-17 | 2016-01-20 | 安徽中鼎减震橡胶技术有限公司 | Car torsion roof beam bush assembly fixture |
| CN205465076U (en) * | 2016-03-18 | 2016-08-17 | 西安航天华阳机电装备有限公司 | Thin wall part spinning assembly shaping is equipped |
| CN205684980U (en) * | 2016-06-07 | 2016-11-16 | 上海江南长兴重工有限责任公司 | Hang horse anti-state erecting device |
| CN205703169U (en) * | 2016-06-07 | 2016-11-23 | 杭州自强链条传动有限公司 | Plastics cover piece assembly tooling for escalator chain roller |
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2017
- 2017-06-23 CN CN201710485950.1A patent/CN107030644B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5533541B2 (en) * | 2010-10-14 | 2014-06-25 | トヨタ自動車株式会社 | Sensor unit assembly method, manufacturing method, and jig |
| CN104723271A (en) * | 2013-12-19 | 2015-06-24 | 哈尔滨飞机工业集团有限责任公司 | Bushing installation tool |
| CN104942565A (en) * | 2015-06-26 | 2015-09-30 | 中国工程物理研究院机械制造工艺研究所 | Continuous no-impact automatic uniform-load press-fitting device |
| CN204976515U (en) * | 2015-07-17 | 2016-01-20 | 安徽中鼎减震橡胶技术有限公司 | Car torsion roof beam bush assembly fixture |
| CN204935525U (en) * | 2015-08-31 | 2016-01-06 | 惠州比亚迪电池有限公司 | A kind of sealing strip erecting tools |
| CN205465076U (en) * | 2016-03-18 | 2016-08-17 | 西安航天华阳机电装备有限公司 | Thin wall part spinning assembly shaping is equipped |
| CN205684980U (en) * | 2016-06-07 | 2016-11-16 | 上海江南长兴重工有限责任公司 | Hang horse anti-state erecting device |
| CN205703169U (en) * | 2016-06-07 | 2016-11-23 | 杭州自强链条传动有限公司 | Plastics cover piece assembly tooling for escalator chain roller |
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| CN107030644A (en) | 2017-08-11 |
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