CN104457630B - Mechanical hydraulic displacement measurement device - Google Patents
Mechanical hydraulic displacement measurement device Download PDFInfo
- 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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- Prior art keywords
- measurement
- bushing
- ring
- oil pocket
- mechanical hydraulic
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sliding-Contact Bearings (AREA)
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
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.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104457630A CN104457630A (en) | 2015-03-25 |
| CN104457630B true CN104457630B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410751942.3A Active CN104457630B (en) | 2014-12-08 | 2014-12-08 | Mechanical hydraulic displacement measurement device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104457630B (en) |
Families Citing this family (2)
| 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 |
| CN111380489B (en) * | 2020-03-25 | 2022-07-12 | 宁波名古屋工业有限公司 | Pipe fitting detection equipment with lining core and detection method thereof |
Citations (6)
| 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 |
-
2014
- 2014-12-08 CN CN201410751942.3A patent/CN104457630B/en active Active
Patent Citations (6)
| 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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| Publication number | Publication date |
|---|---|
| CN104457630A (en) | 2015-03-25 |
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