CN104457630A - Mechanical hydraulic displacement measurement device - Google Patents

Mechanical hydraulic displacement measurement device Download PDF

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Publication number
CN104457630A
CN104457630A CN201410751942.3A CN201410751942A CN104457630A CN 104457630 A CN104457630 A CN 104457630A CN 201410751942 A CN201410751942 A CN 201410751942A CN 104457630 A CN104457630 A CN 104457630A
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CN
China
Prior art keywords
lining
measurement
ring
measuring head
oil pocket
Prior art date
Application number
CN201410751942.3A
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Chinese (zh)
Other versions
CN104457630B (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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Application filed by 西安航空动力控制科技有限公司 filed Critical 西安航空动力控制科技有限公司
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

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/02—Measuring 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
    • G01B21/06—Measuring 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, be specifically related to a kind of mechanical hydraulic-pressure type displacement measurement instrument

Background technology:

Hydraulic machinery series products in working order time usually need the displacement of measurement component under certain condition of work.In measuring process, affect by interiors of products working fluid pressure, cause measuring head can not contact very well with unit under test, easily form space.When adopting spring to reset, due to instability and the working hydraulic pressure fluctuation of spring force, be difficult to ensure that measuring head and tested position are followed, cause followability poor, measured value truly can not reflect actual displacement.

Summary of the invention:

The object of the invention is: propose a kind of special-purpose machinery fluid pressure type displacement measuring device, can the displacement of Measurement accuracy mechanical-hydraulic series products parts under certain condition of work.

Technical scheme of the present invention is: mechanical hydraulic-pressure type displacement measuring device, primarily of measurement mechanism and locking device composition.Wherein measurement mechanism comprises lining 1, bearing 2, sounding rod 3, measuring head 4, guide sleeves A5, guide sleeves B6; Locking device comprises back-up ring 7, half garden ring 8, nut 9.In described measurement mechanism, lining 1 interference fit is in bearing 2 cavity, and guide sleeves A5 and guide sleeves B6 then distinguishes interference fit in lining 1 inwall; Sounding rod 3 and measuring head 4 are placed in lining 1 inner chamber with guide sleeves B6 and guide sleeves A5 clearance fit respectively; Described measuring head 4 stretches out lining 1 to be implemented to measure with bearing 2; Be one section of sliding ring 14 between described measuring head 4 and sounding rod 3, sliding ring 14, can be set to one or multi-channel; Form oil pocket B 11 between sliding ring 14 and lining 1 inwall and sounding rod 3, between sliding ring 14 and lining 1 inwall and measuring head 4, form oil pocket A10; Described oil pocket A10, oil pocket B11 are communicated with the oil pocket of tested environment by oil circuit A12, oil circuit B13 and sliding ring 14 on lining 1; Described measurement mechanism, utilizes oil circuit A12, oil circuit B13 product work environmental pressure and measurement mechanism oil pocket A10, oil pocket B11 to be linked up, realizes operating mode in measuring process consistent.

Described locking device, adopts semicircular ring clamp system, is convenient to different depth and measures.In locking device, semicircular ring 8 is fastened on lining 1 cylindrical, and back-up ring 7 is enclosed within semicircular ring 8 cylindrical, and nut 9 utilizes bearing 2 is threaded through and moves axially back-up ring 7 and hold semicircular ring 8 tightly, then holds lining 1 tightly by semicircular ring 8, realizes being fastenedly connected of bearing 2 and lining 1.

For the lower-grade fuel of pump chamber pressure 0.56MP, when designing the measurement mechanism of three-D cam stroke, when measuring head 4 and sounding rod 3 are 0.012 ~ 0.016 with the clearance requirement in lining 1 hole, both ensure that the dirigibility of sounding rod 3 and measuring head 4, and prevented again measurement mechanism leakage of oil from exceeding standard; Measurement mechanism requires to check sealing by 0.25MP pressure, and leakage of oil amount is not more than 6.5cm 3/ point; The dirigibility of measuring head 4 and sounding rod 3 adopts the power inspection being not more than 40g.

Beneficial effect of the present invention: the actual displacement situation at tested position when the present invention solves mechanical-hydraulic series products duty well.Measuring accuracy is high, and easy to use, reliable, stable, detection efficiency is high, is suitable for batch production.

Accompanying drawing illustrates:

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

In figure, 1-lining, 2-bearing, 3-sounding rod, 4-measuring head, 5-guide sleeves A, 6-guide sleeves B, 7-back-up ring, 8-semicircular ring, 9-nut, 10-oil pocket A, 11-oil pocket B, 12-oil circuit A, 13-oil circuit B, 14-sliding ring.

Embodiment:

Mechanical hydraulic-pressure type displacement measuring device in the present embodiment, primarily of measurement mechanism and locking device composition.Wherein measurement mechanism comprises lining 1, bearing 2, sounding rod 3, measuring head 4, guide sleeves A5, guide sleeves B6; Locking device comprises back-up ring 7, half garden ring 8, nut 9.In described measurement mechanism, lining 1 interference fit is in bearing 2 cavity, and guide sleeves A5 and guide sleeves B6 then distinguishes interference fit in lining 1 inwall; Sounding rod 3 and measuring head 4 are placed in lining 1 inner chamber with guide sleeves B6 and guide sleeves A5 clearance fit respectively; Described measuring head 4 stretches out lining 1 to be implemented to measure with bearing 2; Be one section of sliding ring 14 between described measuring head 4 and sounding rod 3, sliding ring 14, can be set to one or multi-channel; Form oil pocket B 11 between sliding ring 14 and lining 1 inwall and sounding rod 3, between sliding ring 14 and lining 1 inwall and measuring head 4, form oil pocket A10; Described oil pocket A10, oil pocket B11 are communicated with the oil pocket of tested environment by oil circuit A12, oil circuit B13 and sliding ring 14 on lining 1; Described measurement mechanism, utilizes oil circuit A12, oil circuit B13 product work environmental pressure and measurement mechanism oil pocket A10, oil pocket B11 to be linked up, realizes operating mode in measuring process consistent.

Affiliated locking device, adopts semicircular ring clamp system, is convenient to different depth and measures.In locking device, semicircular ring 8 is fastened on lining 1 cylindrical, and back-up ring 7 is enclosed within semicircular ring 8 cylindrical, and nut 9 utilizes bearing 2 is threaded through and moves axially back-up ring 7 and hold semicircular ring 8 tightly, then holds lining 1 tightly by semicircular ring 8, realizes being fastenedly connected of bearing 2 and lining 1.

Claims (5)

1. mechanical hydraulic-pressure type displacement measuring device, primarily of measurement mechanism and locking device composition.Wherein measurement mechanism comprises lining 1, bearing 2, sounding rod 3, measuring head 4, guide sleeves A5, guide sleeves B6; Locking device comprises back-up ring 7, half garden ring 8, nut 9.In described measurement mechanism, lining 1 interference fit is in bearing 2 cavity, and guide sleeves A5 and guide sleeves B6 then distinguishes interference fit in lining 1 inwall; Sounding rod 3 and measuring head 4 are placed in lining 1 inner chamber with guide sleeves B6 and guide sleeves A5 clearance fit respectively; Described measuring head 4 stretches out lining 1 to be implemented to measure with bearing 2; Be one section of sliding ring 14 between described measuring head 4 and sounding rod 3, sliding ring 14, can be set to one or multi-channel; Form oil pocket B11 between sliding ring 14 and lining 1 inwall and sounding rod 3, between sliding ring 14 and lining 1 inwall and measuring head 4, form oil pocket A10; Described oil pocket A10, oil pocket B11 are communicated with the oil pocket of tested environment by oil circuit A12, oil circuit B13 and sliding ring 14 on lining 1; Described measurement mechanism, utilizes oil circuit A12, oil circuit B13 product work environmental pressure and measurement mechanism oil pocket A10, oil pocket B11 to be linked up.
2. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1, its special is that described locking device adopts semicircular ring clamp system; In locking device, semicircular ring 8 is fastened on lining 1 cylindrical, and back-up ring 7 is enclosed within semicircular ring 8 cylindrical, and nut 9 utilizes bearing 2 is threaded through and moves axially back-up ring 7 and hold semicircular ring 8 tightly, then holds lining 1 tightly by semicircular ring 8, realizes being fastenedly connected of bearing 2 and lining 1.
3. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1, its special is, described measuring head 4 and sounding rod 3 are 0.012 ~ 0.016 with the clearance requirement in lining 1 hole.
4. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1, its special is, described measurement mechanism requires to check sealing by 0.25MP pressure, and leakage of oil amount is not more than 6.5cm 3/ point.
5. mechanical hydraulic-pressure type displacement measuring device as claimed in claim 1, its special is, the dirigibility of described measuring head 4 and sounding rod 3 adopts the power inspection being not more than 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 true CN104457630A (en) 2015-03-25
CN104457630B CN104457630B (en) 2017-02-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105910557A (en) * 2016-06-25 2016-08-31 北京工业大学 Visual horizontal large-displacement test method and device for liquefying deforming shaking table test structure of underground structure

Citations (5)

* 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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1442829A1 (en) * 1986-12-26 1988-12-07 Запорожский машиностроительный институт им.В.Я.Чубаря Hydraulic device for measuring linear dimensions and displacements

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
JPS61129518A (en) * 1984-06-08 1986-06-17 Gonji Mario Minute leakage preventive device for avoiding oil leakage, for signal display or for equal use in hydraulic device
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105910557A (en) * 2016-06-25 2016-08-31 北京工业大学 Visual horizontal large-displacement test method and device for liquefying deforming shaking table test structure of underground structure
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

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