CN203614901U - Connecting structure of iron core and valve element of electro-hydraulic servo valve displacement sensor - Google Patents
Connecting structure of iron core and valve element of electro-hydraulic servo valve displacement sensor Download PDFInfo
- Publication number
- CN203614901U CN203614901U CN201320797388.3U CN201320797388U CN203614901U CN 203614901 U CN203614901 U CN 203614901U CN 201320797388 U CN201320797388 U CN 201320797388U CN 203614901 U CN203614901 U CN 203614901U
- Authority
- CN
- China
- Prior art keywords
- iron core
- zeroing
- pad
- spool
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 23
- 239000003292 glue Substances 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 8
- 239000012207 thread-locking agent Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model belongs to the field of electro-hydraulic servo valve design and relates to the improvement of a connecting structure of an iron core and a valve element of an electro-hydraulic servo valve displacement sensor. The connecting structure is characterized in that a zero setting spacer (6) is arranged between the right end face of a sensor coil assembly (2) and the left end face of a valve bush (1) and the thickness of the zero setting spacer (6) is 0.01 mm to 2 mm. According to the improved connecting structure of the iron core and the valve element of the electro-hydraulic servo valve displacement sensor, the zero debugging process of the sensor is greatly simplified and the zero debugging efficiency is improved.
Description
Technical field
The utility model belongs to electrohydraulic control designing technique, relates to the improvement of the linkage structure to servovalve displacement transducer iron core and spool.
Background technique
Current a kind of electrohydraulic control displacement transducer iron core and the linkage structure of spool are referring to Fig. 1, and it is made up of valve pocket 1, pickup wire coil assembly 2, sensor iron core 3 and spool 4.Spool 4 is arranged in the endoporus of valve pocket 1 and keeps Spielpassung, sensor iron core 3 is arranged in the endoporus of pickup wire coil assembly 2, there is external thread section 3a at the right-hand member of sensor iron core 3, there is a tapped blind hole 5 in the left side of spool 4, the external thread section 3a of sensor iron core 3 is screwed in tapped blind hole 5, external thread section 3a and the tapped blind hole 5 of sensor iron core 3 are locked by screw thread glue, and sensor iron core 3 and spool 4 keep coaxial, the left side laminating of the right side of pickup wire coil assembly 2 and valve pocket 1., adpting flange is fixed on the left side of valve pocket 1 by screw with adpting flange at the right-hand member of pickup wire coil assembly 2.Its shortcoming is: transducer zeroing debug difficulties, debugging efficiency is low.So-called transducer zeroing is debugged and is referred to, in the time that the output flow of electrohydraulic control under rated pressure is zero, the output voltage of displacement transducer is also zero.While carrying out transducer zeroing debugging, first splash into screw thread glue at the external thread section 3a place of sensor iron core 3, sensor iron core 3 is screwed into the tapped blind hole 5 of spool 4, then the adpting flange of pickup wire coil assembly 2 is fixed on the left side of valve pocket 1 with screw, again electrohydraulic control is arranged on hydraulic test bench, pressure is risen to working pressure, and the output voltage of test bit displacement sensor, to judge that displacement transducer is whether within the scope of zero-bit.If displacement transducer output voltage is not within the scope of zero-bit, need after closure sensor testing apparatus, hydraulic test bed, the coil block of displacement transducer 2 is pulled down from valve pocket 1, adjusted the relative axial position of sensor iron core 3 and spool 4, then re-start above debugging step.So repeatedly for several times, until displacement transducer output voltage is within the scope of zero-bit.Because the zero-bit required precision to electrohydraulic control displacement transducer is very high, conventionally, need repeated multiple times could debugging successfully, conventionally need more than 1 hour just can complete zero-bit debugging, debugging efficiency is low.Screw thread glue needs the curing time of 24 hours, after screw thread adhesive curing, the external thread section 3a of sensor iron core 3 and tapped blind hole 5 is locked.
Summary of the invention
The purpose of this utility model is: propose the linkage structure of a kind of improved electrohydraulic control displacement transducer iron core and spool, to simplify the process of transducer zeroing debugging, improve the efficiency of zero-bit debugging.
The technical solution of the utility model is: the linkage structure of electrohydraulic control displacement transducer iron core and spool, comprise valve pocket 1, pickup wire coil assembly 2, sensor iron core 3 and spool 4, spool 4 is arranged in the endoporus of valve pocket 1 and keeps Spielpassung, sensor iron core 3 is arranged in the endoporus of pickup wire coil assembly 2, there is external thread section 3a at the right-hand member of sensor iron core 3, there is a tapped blind hole 5 in the left side of spool 4, the external thread section 3a of sensor iron core 3 is screwed in tapped blind hole 5, external thread section 3a and the tapped blind hole 5 of sensor iron core 3 are locked by screw thread glue, sensor iron core 3 and spool 4 keep coaxial, at the right-hand member of pickup wire coil assembly 2 with adpting flange, adpting flange is fixed on the left side of valve pocket 1 by screw, it is characterized in that: between the right side of pickup wire coil assembly 2 and the left side of valve pocket 1, have a zeroing pad 6, zeroing pad 6 is disks, on zeroing pad 6, there is a U-groove bevel 6a, the center line of U-groove bevel 6a width direction is the symmetry axis of zeroing pad 6, the degree of depth of U-groove bevel 6a is greater than the radius of the pad 6 that returns to zero, the width of U-groove bevel 6a is not less than the diameter of sensor iron core 3, and the thickness of zeroing pad 6 is 0.01mm～2mm, the zeroing left surface of pad 6 and the laminating of the right side of pickup wire coil assembly 2, the zeroing right surface of pad 6 and the laminating of the left side of valve pocket 1.
The utility model has the advantages that: proposed the linkage structure of a kind of improved electrohydraulic control displacement transducer iron core and spool, greatly simplified the process of transducer zeroing debugging, improved the efficiency of zero-bit debugging.An embodiment of the present utility model, through evidence, the time of zero-bit debugging only needs 2 minutes, and efficiency has improved more than 30 times.
Accompanying drawing explanation
Fig. 1 is current a kind of electrohydraulic control displacement transducer iron core and the linkage structure schematic diagram of spool.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the plan view of pad 6 of returning to zero in the utility model.
Embodiment
Below the utility model is described in further details.The linkage structure of electrohydraulic control displacement transducer iron core and spool, comprise valve pocket 1, pickup wire coil assembly 2, sensor iron core 3 and spool 4, spool 4 is arranged in the endoporus of valve pocket 1 and keeps Spielpassung, sensor iron core 3 is arranged in the endoporus of pickup wire coil assembly 2, there is external thread section 3a at the right-hand member of sensor iron core 3, there is a tapped blind hole 5 in the left side of spool 4, the external thread section 3a of sensor iron core 3 is screwed in tapped blind hole 5, external thread section 3a and the tapped blind hole 5 of sensor iron core 3 are locked by screw thread glue, sensor iron core 3 and spool 4 keep coaxial, at the right-hand member of pickup wire coil assembly 2 with adpting flange, adpting flange is fixed on the left side of valve pocket 1 by screw, it is characterized in that: between the right side of pickup wire coil assembly 2 and the left side of valve pocket 1, have a zeroing pad 6, zeroing pad 6 is disks, on zeroing pad 6, there is a U-groove bevel 6a, the center line of U-groove bevel 6a width direction is the symmetry axis of zeroing pad 6, the degree of depth of U-groove bevel 6a is greater than the radius of the pad 6 that returns to zero, the width of U-groove bevel 6a is not less than the diameter of sensor iron core 3, and the thickness of zeroing pad 6 is 0.01mm～2mm, the zeroing left surface of pad 6 and the laminating of the right side of pickup wire coil assembly 2, the zeroing right surface of pad 6 and the laminating of the left side of valve pocket 1.
Zeroing pad 6 can be manufactured in advance, and thickness, from 0.01mm～2mm, creates series product.The step-length of zeroing pad 6 thickness is 0.01mm.
Zeroing pad 6 can be manufactured by stainless steel, aluminium, copper or pure iron material.
Zero-bit adjustment method of the present utility model is: the external thread section 3a place at sensor iron core 3 splashes into screw thread glue, sensor iron core 3 is screwed into the tapped blind hole 5 of spool 4, then the adpting flange of pickup wire coil assembly 2 is fixed on the left side of valve pocket 1 with screw, again electrohydraulic control is arranged on hydraulic test bench, pressure is risen to working pressure, the output voltage of test bit displacement sensor, to judge that displacement transducer is whether within the scope of zero-bit.If displacement transducer output voltage not within the scope of zero-bit, is unscrewed the adpting flange of pickup wire coil assembly 2 and the attachment screw of valve pocket 1, change the zeroing pad 6 between pickup wire coil assembly 2 and valve pocket 1.Owing to needing thickening or attenuate according to the concrete condition judgement zeroing pad 6 of sensor output voltage, and while changing zeroing pad 6, do not need closure sensor testing apparatus, hydraulic test bed etc., so conventionally just can complete zero-bit debugging about 2 minutes, debugging efficiency is high.Screw thread glue needs the curing time of 24 hours, after screw thread adhesive curing, the external thread section 3a of sensor iron core 3 and tapped blind hole 5 is locked.
Claims (2)
1. the linkage structure of electrohydraulic control displacement transducer iron core and spool, comprise valve pocket (1), pickup wire coil assembly (2), sensor iron core (3) and spool (4), spool (4) is arranged in the endoporus of valve pocket (1) and keeps Spielpassung, sensor iron core (3) is arranged in the endoporus of pickup wire coil assembly (2), there is external thread section (3a) at the right-hand member of sensor iron core (3), there is a tapped blind hole (5) in the left side of spool (4), the external thread section (3a) of sensor iron core (3) is screwed in tapped blind hole (5), external thread section (3a) and the tapped blind hole (5) of sensor iron core (3) are locked by screw thread glue, it is coaxial that sensor iron core (3) and spool (4) keep, at the right-hand member of pickup wire coil assembly (2) with adpting flange, adpting flange is fixed on the left side of valve pocket (1) by screw, it is characterized in that: between the right side of pickup wire coil assembly (2) and the left side of valve pocket (1), have a zeroing pad (6), zeroing pad (6) is a disk, on zeroing pad (6), there is a U-groove bevel (6a), the center line of U-groove bevel (6a) width direction is the symmetry axis of zeroing pad (6), the degree of depth of U-groove bevel (6a) is greater than the radius of zeroing pad (6), the width of U-groove bevel (6a) is not less than the diameter of sensor iron core (3), and the thickness of zeroing pad (6) is 0.01mm～2mm, the left surface of zeroing pad (6) and the laminating of the right side of pickup wire coil assembly (2), the right surface of zeroing pad (6) and the laminating of the left side of valve pocket (1).
2. the linkage structure of electrohydraulic control displacement transducer iron core according to claim 1 and spool, is characterized in that: said zeroing pad (6) is manufactured by stainless steel, aluminium, copper or pure iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797388.3U CN203614901U (en) | 2013-12-04 | 2013-12-04 | Connecting structure of iron core and valve element of electro-hydraulic servo valve displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320797388.3U CN203614901U (en) | 2013-12-04 | 2013-12-04 | Connecting structure of iron core and valve element of electro-hydraulic servo valve displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614901U true CN203614901U (en) | 2014-05-28 |
Family
ID=50767546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320797388.3U Expired - Lifetime CN203614901U (en) | 2013-12-04 | 2013-12-04 | Connecting structure of iron core and valve element of electro-hydraulic servo valve displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614901U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546175A (en) * | 2015-12-21 | 2016-05-04 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Connection structure of four-redundancy sensor and servo valve body, and zero position adjustment method |
| CN106321954A (en) * | 2016-08-17 | 2017-01-11 | 中国航空工业集团公司西安飞行自动控制研究所 | Displacement sensor positioning structure used for hydraulic sliding valve element |
| CN106871834A (en) * | 2015-12-11 | 2017-06-20 | 中国航空工业第六八研究所 | A kind of attachment structure of displacement transducer iron core and valve element |
| CN109916288A (en) * | 2019-04-10 | 2019-06-21 | 西安西灵传感技术有限公司 | A kind of differential transformer type linear movement pick-up |
| CN113358550A (en) * | 2021-06-30 | 2021-09-07 | 天津大学 | High-pressure corrosion fatigue test method for metal material |
| CN113358551A (en) * | 2021-06-30 | 2021-09-07 | 天津大学 | Metal material high-pressure corrosion fatigue experimental device |
-
2013
- 2013-12-04 CN CN201320797388.3U patent/CN203614901U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871834A (en) * | 2015-12-11 | 2017-06-20 | 中国航空工业第六八研究所 | A kind of attachment structure of displacement transducer iron core and valve element |
| CN105546175A (en) * | 2015-12-21 | 2016-05-04 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Connection structure of four-redundancy sensor and servo valve body, and zero position adjustment method |
| CN106321954A (en) * | 2016-08-17 | 2017-01-11 | 中国航空工业集团公司西安飞行自动控制研究所 | Displacement sensor positioning structure used for hydraulic sliding valve element |
| CN109916288A (en) * | 2019-04-10 | 2019-06-21 | 西安西灵传感技术有限公司 | A kind of differential transformer type linear movement pick-up |
| CN109916288B (en) * | 2019-04-10 | 2024-03-19 | 西安西灵传感技术有限公司 | Differential transformer type linear displacement sensor |
| CN113358550A (en) * | 2021-06-30 | 2021-09-07 | 天津大学 | High-pressure corrosion fatigue test method for metal material |
| CN113358551A (en) * | 2021-06-30 | 2021-09-07 | 天津大学 | Metal material high-pressure corrosion fatigue experimental device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203614901U (en) | Connecting structure of iron core and valve element of electro-hydraulic servo valve displacement sensor | |
| CN203979007U (en) | A kind of proportional electromagnetic valve Flow characteristics testing apparatus | |
| CN204059597U (en) | A kind of bolt sleeve device realizing combining structure shear connector stiffness variation | |
| CN107775320A (en) | Output shaft pressing mounting tool | |
| CN104458120A (en) | Verification system of pressure measuring instrument | |
| CN204177523U (en) | Pressure transducer load limit protective device | |
| CN203396352U (en) | Hand-held control pipe external diameter expanding clamp | |
| CN202607358U (en) | Disc spring group clamp force device capable of quickly adjusting broaching tool mechanism | |
| CN103056680B (en) | Shaft coupling end-tooth processing method | |
| CN201344171Y (en) | Servo hydraulic system for tracking steel tube | |
| CN204461719U (en) | Safety valve on-line testing clamping measurement mechanism | |
| CN205064737U (en) | Fix a position lead screw fast | |
| CN204392002U (en) | A kind of servo motor rotor press-fitting tool | |
| CN203249767U (en) | A chain tensile parameter testing apparatus | |
| CN201596757U (en) | Pressurization control mechanism of die casting machine | |
| CN202319058U (en) | Stroke detecting and controlling device of oil press | |
| CN204458624U (en) | A kind of overlapping sequence valve | |
| CN202403869U (en) | Standard transducer replacing device for build-up force standard machine | |
| CN100574971C (en) | The processing method on a kind of crossover valve core control pod and control limit | |
| CN203548423U (en) | Performance detection device for function valves in automatic transmission box oil pump | |
| CN202922047U (en) | Tool changing mechanism of gear shaper | |
| CN103921153A (en) | Preassembling device of spindle broach disk spring of heavy numerical control boring and milling machine | |
| CN204228075U (en) | A kind of internal orifice dimension verifying attachment | |
| CN202571754U (en) | Valve block and rubber sleeve assembling system for butterfly valve assembling machine | |
| CN103801572A (en) | Wire holder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |