CN104457630B - Mechanical hydraulic displacement measurement device - Google Patents

Mechanical hydraulic displacement measurement device Download PDF

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Publication number
CN104457630B
CN104457630B CN201410751942.3A CN201410751942A CN104457630B CN 104457630 B CN104457630 B CN 104457630B CN 201410751942 A CN201410751942 A CN 201410751942A CN 104457630 B CN104457630 B CN 104457630B
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CN
China
Prior art keywords
measurement
bushing
ring
oil pocket
mechanical hydraulic
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Application number
CN201410751942.3A
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Chinese (zh)
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CN104457630A (en
Inventor
郝彩霞
程润宝
樊竹娟
张凤英
Original Assignee
西安航空动力控制科技有限公司
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Priority to CN201410751942.3A priority Critical patent/CN104457630B/en
Publication of CN104457630A publication Critical patent/CN104457630A/en
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Publication of CN104457630B publication Critical patent/CN104457630B/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/02Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring length, width, or thickness
    • G01B21/06Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving

Abstract

The invention discloses a mechanical hydraulic displacement measurement device and belongs to the field of measurement. The device is mainly composed of a measurement device and a locking device. The measurement device comprises a lining (1), a support (2), a measurement rod (3), a measurement head (4), a guide sleeve A (5) and a guide sleeve B (6). The locking device comprises a check ring (7), a semicircular ring (8) and a nut (9). The mechanical hydraulic displacement measurement device well solves the actual displacement problem of a measured portion when mechanical hydraulic products work, and is high in measurement precision, easy, convenient, reliable and stable to use, high in detection efficiency and applicable to batch production.

Description

Mechanical hydraulic-pressure type displacement measuring device

Technical field:

The invention belongs to fields of measurement is and in particular to a kind of mechanical hydraulic-pressure type displacement measurement instrument

Background technology:

Hydraulic machinery class product in working order when typically require displacement under certain working condition for the measurement part.Measurement During, affected by interiors of products working fluid pressure, cause measurement head can not contact very well with unit under test, easily formed empty Gap.When being resetted using spring, because unstability and the working hydraulic pressure fluctuation of spring force is it is difficult to ensure measurement Head is followed with tested position, causes followability poor, measured value can not truly reflect actual displacement.

Content of the invention:

The purpose of the present invention is:Propose a kind of special-purpose machinery fluid pressure type displacement measuring device, can accurately measure mechanical liquid Pressure displacement under certain working condition for the class product component.

The technical scheme is that:Mechanical hydraulic-pressure type displacement measuring device, mainly by measurement apparatus and locking device group Become.Wherein measurement apparatus include bushing 1, bearing 2, measurement bar 3, measurement head 4, guide sleeves A5, guide sleeves B6;Locking device includes Back-up ring 7, semicircular ring 8, nut 9.In described measurement apparatus, bushing 1 is in interference fit with bearing 2 cavity, guide sleeves A5 and guide sleeves B6 is then respectively in interference fit with bushing 1 inwall;Measurement bar 3 and measurement head 4 are coordinated with guide sleeves B6 and guide sleeves A5 gap respectively It is placed in bushing 1 inner chamber;Described measurement head 4 is stretched out bushing 1 and is implemented measurement with bearing 2;Between described measurement head 4 and measurement bar 3 it is One section of sliding ring 14, sliding ring 14, may be configured as one or multi-channel;Sliding ring 14 and bushing 1 inwall and survey Form oil pocket B 11 between gauge rod 3, between sliding ring 14 and bushing 1 inwall and measurement head 4, form oil pocket A10;Described oil Chamber A10, oil pocket B11 are passed through oil circuit A12, oil circuit B13 and sliding ring 14 on bushing 1 and are connected with the oil pocket of tested environment; Described measurement apparatus, using oil circuit A12, oil circuit B13 by product work ambient pressure and measurement apparatus oil pocket A10, oil pocket B11 ditch Logical, realize operating mode in measurement process consistent.

Described locking device, using semicircular ring clamp system, is easy to different depth measurement.In locking device, semicircular ring 8 is detained Be combined in bushing 1 cylindrical on, back-up ring 7 be enclosed within semicircular ring 8 cylindrical on, nut 9 using be threaded through on bearing 2 axial movement back-up ring 7 Hold semicircular ring 8 tightly, then bushing 1 is held tightly by semicircular ring 8, realize being fastenedly connected of bearing 2 and bushing 1.

For the lower-grade fuel of pump chamber pressure 0.56MP, when designing the measurement apparatus of three-D cam stroke, measurement head 4 He When the clearance requirement in measurement bar 3 and bushing 1 hole is 0.012~0.016mm, both ensure that the flexible of measurement bar 3 and measurement head 4 Property, prevent measurement apparatus oil leak exceeded again;Measurement apparatus require to check sealing by 0.25MP pressure, oil leak amount is not more than 6.5cm3/ point;The motility of measurement head 4 and measurement bar 3 adopts the no more than power inspection of 40g.

Beneficial effects of the present invention:Tested position when the present invention solves mechanical-hydraulic class product working status well Actual displacement situation.Certainty of measurement is high, and easy to use, reliable, stable, detection efficiency is high, is suitable for batch production.

Brief description:

Fig. 1 is mechanical hydraulic-pressure type displacement measuring device structural representation proposed by the present invention

In figure, 1- bushing, 2- bearing, 3- measurement bar, 4- measurement head, 5- guide sleeves A, 6- guide sleeves B, 7- back-up ring, 8- half Annulus, 9- nut, 10- oil pocket A, 11- oil pocket B, 12- oil circuit A, 13- oil circuit B, 14- sliding ring.

Specific embodiment:

Mechanical hydraulic-pressure type displacement measuring device in the present embodiment, is mainly made up of measurement apparatus and locking device.Wherein Measurement apparatus include bushing 1, bearing 2, measurement bar 3, measurement head 4, guide sleeves A5, guide sleeves B6;Locking device include back-up ring 7, Semicircular ring 8, nut 9.In described measurement apparatus, bushing 1 in interference fit with bearing 2 cavity, then divide by guide sleeves A5 and guide sleeves B6 Not in interference fit with bushing 1 inwall;Measurement bar 3 and measurement head 4 are placed in lining with guide sleeves B6 and the cooperation of guide sleeves A5 gap respectively Cover 1 inner chamber;Described measurement head 4 is stretched out bushing 1 and is implemented measurement with bearing 2;It is one section of cunning between described measurement head 4 and measurement bar 3 Rotary packing ring 14, sliding ring 14, may be configured as one or multi-channel;Sliding ring 14 and bushing 1 inwall and measurement bar 3 it Between formed oil pocket B 11, between sliding ring 14 and bushing 1 inwall and measurement head 4 formed oil pocket A10;Described oil pocket A10, oil Chamber B11 is passed through oil circuit A12, oil circuit B13 and sliding ring 14 on bushing 1 and is connected with the oil pocket of tested environment;Described measurement Product work ambient pressure and measurement apparatus oil pocket A10, oil pocket B11 are linked up using oil circuit A12, oil circuit B13, are realized by device In measurement process, operating mode is consistent.

Affiliated locking device, using semicircular ring clamp system, is easy to different depth measurement.In locking device, semicircular ring 8 is detained Be combined in bushing 1 cylindrical on, back-up ring 7 be enclosed within semicircular ring 8 cylindrical on, nut 9 using be threaded through on bearing 2 axial movement back-up ring 7 Hold semicircular ring 8 tightly, then bushing 1 is held tightly by semicircular ring 8, realize being fastenedly connected of bearing 2 and bushing 1.

Claims (5)

1. mechanical hydraulic-pressure type displacement measuring device, including measurement apparatus and locking device it is characterised in that:Measurement apparatus include serving as a contrast Set (1), bearing (2), measurement bar (3), measurement head (4), guide sleeves A (5), guide sleeves B (6);Locking device include back-up ring (7), Semicircular ring (8), nut (9);In described measurement apparatus, bushing (1) is in interference fit with bearing (2) cavity, guide sleeves A (5) and drawing Guide pin bushing B (6) is then respectively in interference fit with bushing (1) inwall;Measurement bar (3) and measurement head (4) respectively with guide sleeves B (6) and drawing The cooperation of guide pin bushing A (5) gap is placed in bushing (1) inner chamber;Described measurement head (4) is stretched out bushing (1) and is implemented measurement with bearing (2);Institute Stating between measurement head (4) and measurement bar (3) is one section of sliding ring (14), and sliding ring (14) may be configured as together or many Road;Form oil pocket B (11), sliding ring (14) and lining between sliding ring (14) and bushing (1) inwall and measurement bar (3) Form oil pocket A (10) between set (1) inwall and measurement head (4);Described oil pocket A (10), oil pocket B (11) are oiled by bushing (1) Road A (12), oil circuit B (13) and sliding ring (14) are connected with the oil pocket of tested environment;Described measurement apparatus, using oil circuit Product work ambient pressure and measurement apparatus oil pocket A (10), oil pocket B (11) are linked up by A (12), oil circuit B (13).
2. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1 it is characterised in that:Described locking device, using half Annulus clamp system;In locking device semicircular ring (8) be fastened on bushing (1) cylindrical on, it is cylindrical that back-up ring (7) is enclosed within semicircular ring (8) On, nut (9) utilizes and is threaded through axial movement back-up ring (7) holding semicircular ring (8) on bearing (2), then is held tightly by semicircular ring (8) Bushing (1), realizes being fastenedly connected of bearing (2) and bushing (1).
3. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1 it is characterised in that:Described measurement head (4) and measurement Bar (3) is 0.012~0.016mm with the clearance requirement in bushing (1) hole.
4. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1 it is characterised in that:Described measurement apparatus require to pass through 0.25MP pressure checks sealing, and oil leak amount is not more than 6.5cm3/ point.
5. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1 it is characterised in that:Described measurement head (4) and measurement The motility of bar (3) adopts the no more than power inspection of 40g.
CN201410751942.3A 2014-12-08 2014-12-08 Mechanical hydraulic displacement measurement device CN104457630B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410751942.3A CN104457630B (en) 2014-12-08 2014-12-08 Mechanical hydraulic displacement measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410751942.3A CN104457630B (en) 2014-12-08 2014-12-08 Mechanical hydraulic displacement measurement device

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CN104457630A CN104457630A (en) 2015-03-25
CN104457630B true CN104457630B (en) 2017-02-22

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105910557B (en) * 2016-06-25 2018-12-18 北京工业大学 One kind being visually applied to underground structure liquefaction large deformation shaketalle test structure level to big displacement test method and device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171363A1 (en) * 1984-06-08 1986-02-12 Mario Gonzi Microleaks intercepting apparatus for avoiding and/or signalling oil leakages in hydraulic plants and for equivalent uses
SU1442829A1 (en) * 1986-12-26 1988-12-07 Запорожский машиностроительный институт им.В.Я.Чубаря Hydraulic device for measuring linear dimensions and displacements
CN202023795U (en) * 2011-04-12 2011-11-02 天津优瑞纳斯液压机械有限公司 Structure for mounting internal displacement sensor in long-stroke hydraulic cylinder
CN102900728A (en) * 2012-09-29 2013-01-30 中国重型机械研究院股份公司 External displacement sensor
CN103016447A (en) * 2013-01-15 2013-04-03 无锡市三信传动控制有限公司 Constant-pressure and constant-force hydraulic servo cylinder with single outlet rod
CN103075955A (en) * 2013-01-09 2013-05-01 太原理工大学 Displacement measuring device mounted in oil cylinder of hydraulic support

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171363A1 (en) * 1984-06-08 1986-02-12 Mario Gonzi Microleaks intercepting apparatus for avoiding and/or signalling oil leakages in hydraulic plants and for equivalent uses
SU1442829A1 (en) * 1986-12-26 1988-12-07 Запорожский машиностроительный институт им.В.Я.Чубаря Hydraulic device for measuring linear dimensions and displacements
CN202023795U (en) * 2011-04-12 2011-11-02 天津优瑞纳斯液压机械有限公司 Structure for mounting internal displacement sensor in long-stroke hydraulic cylinder
CN102900728A (en) * 2012-09-29 2013-01-30 中国重型机械研究院股份公司 External displacement sensor
CN103075955A (en) * 2013-01-09 2013-05-01 太原理工大学 Displacement measuring device mounted in oil cylinder of hydraulic support
CN103016447A (en) * 2013-01-15 2013-04-03 无锡市三信传动控制有限公司 Constant-pressure and constant-force hydraulic servo cylinder with single outlet rod

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