CN109520454A - A kind of special fixture for the measurement of blood pump rotor displacement - Google Patents
A kind of special fixture for the measurement of blood pump rotor displacement Download PDFInfo
- Publication number
- CN109520454A CN109520454A CN201811356845.9A CN201811356845A CN109520454A CN 109520454 A CN109520454 A CN 109520454A CN 201811356845 A CN201811356845 A CN 201811356845A CN 109520454 A CN109520454 A CN 109520454A
- Authority
- CN
- China
- Prior art keywords
- blood pump
- measurement
- pressing plate
- special fixture
- rotor displacement
- 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.)
- Pending
Links
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, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
Abstract
The present invention relates to a kind of special fixtures for the measurement of blood pump rotor displacement, including bottom plate, lead screw, handle, fixed bracket, positioning stud, mobile pressing plate, compressed spring and support column；The special fixture of the blood pump rotor displacement measurement positions blood pump by bottom plate circular trough, compresses blood pump with mobile pressing plate, to realize its clamping positioning.Blood pump realizes that the change in location of blood pump rotor is measured by the mobile searching position sensor of lead screw horizontal direction；The device has the advantages that simple structure, convenient loading and unloading and operation are convenient.
Description
Technical field
The present invention relates to mechanical clamp field, in particular to a kind of special fixture for the measurement of blood pump rotor displacement.
Background technique
Blood pump can generate vibration when being tested, and the form of common fixture is varied at present, using more
To be used as power source with compressed air or hydraulic oil, but due to structure, technical, have clamping effect is bad, adjustment not
The disadvantages of facilitating, so inventing a kind of blood pump special fixture；Again since it is desired that measurement rotor-position changes, so devising dedicated
Measuring device.
Summary of the invention
The present invention include bottom plate, lead screw, handle, fixed bracket, positioning stud, mobile pressing plate, compressed spring, support column and
Circular trough.Circular trough is equipped in substrate to be used to position blood pump, by nut make mobile pressing plate compress support column and blood pump into
Row is fixed, and swing handle drives fixed bracket by lead screw, and position sensor is fixed on fixed bracket and measures.Turning handle
Hand drives fixed bracket by lead screw, and position sensor is fixed on fixed bracket and is measured.
There are the circular trough of one with blood pump pedestal transition fit in the centre of circular bottom plate, for positioning blood pump and adjustment blood pump
The relative position of upper measured hole and position sensor；It is used to that lead screw is installed there are two rectangular channel on bottom plate, and the side of circular trough
It is used to that positioning stud and support column are installed there are two threaded hole.
Blood pump is placed in circular trough during installation, mobile pressing plate is inserted into along the direction of support column to blood pump, is then twisted
Tight nut makes mobile pressing plate compress blood pump；Nut is unclamped in disassembly, mobile pressing plate is pulled out in the opposite direction then, is taken
Blood pump out.
Support column plays the role of support and balanced sequence pressing plate, and upper end of support column is designed to spherical shape so that installation or
Friction is reduced when disassembly, it is easy to operate；Lower end is screw thread, adjusts its height by adjusting the depth for screwing in threaded hole, makes
Mobile pressing plate keeps horizontal.
Mobile pressing plate be it is demountable, according to the shape of different blood pump entrances come what is designed, may be implemented to blood pump
Clamping and pressuring action, limit five freedom degrees of blood pump, can only carry out rotary fine adjustment.
Have circular hole on fixed bracket, be used to clamp position sensor, wherein the axis of the circular hole of clamp position sensor with
Circular trough is vertically intersected on inner wall axis.
Lead screw and handle are installed in two rectangular channels of bottom plate, drive the fixation bracket on lead screw to exist by swing handle
The micro movement of horizontal direction, is measured with the position sensor above bracket.
Detailed description of the invention
The main view of Fig. 1 structure of the invention；
The left view of Fig. 2 structure of the invention；
The top view of Fig. 3 structure of the invention；
The schematic diagram of Fig. 4 bottom plate；
The schematic diagram that Fig. 5 support column is connect with mobile pressing plate；
The schematic diagram of the mobile pressing plate of Fig. 6.
Specific embodiment
The present invention includes bottom plate (1), lead screw (2), handle (3), fixed bracket (4), positioning stud (5), mobile pressing plate
(6), compressed spring (7), support column (8) and circular trough (9).Circular trough (9) are equipped with above in bottom plate (1) to be used to position blood pump,
So that mobile pressing plate (6) is compressed support column (8) by nut and blood pump is fixed, swing handle (3) is driven solid by lead screw (2)
Position sensor is fixed on fixed bracket (4) and measures by fixed rack (4).
There is the circular trough (9) with blood pump pedestal same size among circular bottom plate (1), for positioning blood pump and adjustment
Blood pump is put into circular trough (9), so that round by the relative position of measured hole and position sensor on blood pump when installation
The movement of slot (9) limitation blood pump；It is used to that lead screw is installed there are two rectangular channel on circular bottom plate (1)；Circular trough (9) side has
Two threaded holes are used to install positioning stud (5) and support column (8).
Blood pump is placed in circular trough during installation, mobile pressing plate (6) are inserted into along the direction of support column (8) to blood pump,
Then tightening nut makes mobile pressing plate (6) to compress blood pump；Nut is unclamped in disassembly, then by mobile pressing plate (6) along phase
Opposite direction pulls out, and takes out blood pump.
Support column (8) plays the role of support and balanced sequence pressing plate (6), and support column (8) one end is designed to the shape of round end
Shape, so that friction is reduced when installation or removal, it is easy to operate；Lower end is screw thread, by adjusting the depth for screwing in threaded hole
Its height is adjusted, mobile pressing plate (6) is made to keep horizontal.
The groove profile of mobile pressing plate (6) is designed according to the shape of blood pump entrance, may be implemented clamping to blood pump and
Pressuring action limits five freedom degrees of blood pump, can only carry out rotary fine adjustment.
There is circular hole on fixed bracket (4), is used to clamp position sensor, wherein the axis of the circular hole of clamp position sensor
Inner wall axis is intersected at circular trough (9), two position sensors can simultaneously measure the rotor of blood pump, the number made
According to more accurate.
Installation lead screw (2) and handle (3) in two rectangular channels of bottom plate (1) drive lead screw by swing handle (3)
(2) fixation bracket (4) the micro movement in the horizontal direction on, is measured with the position sensor above bracket.
Claims (7)
1. a kind of special fixture for the measurement of blood pump rotor displacement, including bottom plate (1), lead screw (2), handle (3), fixed bracket
(4), positioning stud (5), mobile pressing plate (6), compressed spring (7) and support column (8) are equipped with circular trough (9) above in bottom plate (1)
For positioning blood pump, so that mobile pressing plate (6) is compressed support column (8) by nut and blood pump is fixed, swing handle (3) passes through
Lead screw (2) drives fixed bracket (4), and position sensor is fixed on fixed bracket (4) and measures.
2. a kind of special fixture for the measurement of blood pump rotor displacement according to claim 1, wherein circular bottom plate (1),
It is characterized by: having the circular trough (9) with blood pump pedestal transition fit in centre, for positioning blood pump and adjustable blood
The position of measured hole and position sensor on pump；Can be used to that lead screw (2) are installed there are two rectangular channel on circular trough (9).
3. a kind of special fixture for the measurement of blood pump rotor displacement according to claim 1, has circle on fixed bracket (4)
Hole is used to clamp position sensor, it is characterised in that: the axis and circular trough of the circular hole of clamp position sensor intersect at inner wall
Axis.
4. a kind of special fixture for the measurement of blood pump rotor displacement according to claim 1, mobile pressing plate (6) are special
Sign is: can dismantle, for clamping the blood pump of different entrance opening dimensions.
5. a kind of special fixture for the measurement of blood pump rotor displacement according to claim 1, mobile pressing plate (6) and round
Slot (9) collective effect, it is characterised in that: limit five freedom degrees of blood pump, rotary fine adjustment can be carried out.
6. a kind of special fixture for the measurement of blood pump rotor displacement according to claim 1, support column (8) are used to support
Mobile pressing plate (6), it is characterised in that: support column (8) upper end is designed to round end, so that reducing friction resistance when installation and removal
Power, it is easy to operate；Lower end has screw thread, and the depth by changing screw-in threaded hole adjusts its height, keeps mobile pressing plate (6)
It is horizontal.
7. a kind of special fixture for the measurement of blood pump rotor displacement according to claim 1, is surveyed by position sensor
Measure the change in location of blood pump internal rotor, it is characterised in that: swing handle (3) drives the fixation bracket (4) on lead screw (2) in level
The micro movement in direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811356845.9A CN109520454A (en) | 2018-11-15 | 2018-11-15 | A kind of special fixture for the measurement of blood pump rotor displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811356845.9A CN109520454A (en) | 2018-11-15 | 2018-11-15 | A kind of special fixture for the measurement of blood pump rotor displacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109520454A true CN109520454A (en) | 2019-03-26 |
Family
ID=65777702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811356845.9A Pending CN109520454A (en) | 2018-11-15 | 2018-11-15 | A kind of special fixture for the measurement of blood pump rotor displacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109520454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775538A (en) * | 2021-02-18 | 2021-05-11 | 苏州大学 | Welding fixture for measuring and controlling pressing force |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202350766U (en) * | 2011-11-22 | 2012-07-25 | 宜宾天瑞达汽车零部件有限公司 | Negative pressure type exhaust gas recirculation (EGR) valve starting pressure and position feedback detection tool |
| CN203210033U (en) * | 2013-04-27 | 2013-09-25 | 上海菱重增压器有限公司 | Cutting inspection jig for pressurizer rotor assembly |
| CN204771626U (en) * | 2015-06-08 | 2015-11-18 | 宝鸡法士特齿轮有限责任公司 | Pair processing semicircle orifice anchor clamps |
| CN106860929A (en) * | 2017-01-16 | 2017-06-20 | 哈尔滨理工大学 | A kind of blood pump that suspension type impeller displacement measurement is coupled for magnetic liquid |
| CN208091359U (en) * | 2018-05-11 | 2018-11-13 | 常州市武滚轴承有限公司 | The full-automatic longhole survey instrument of steering wheel lower axle |
| CN209062924U (en) * | 2018-11-15 | 2019-07-05 | 哈尔滨理工大学 | A kind of blood pump special fixture |
-
2018
- 2018-11-15 CN CN201811356845.9A patent/CN109520454A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202350766U (en) * | 2011-11-22 | 2012-07-25 | 宜宾天瑞达汽车零部件有限公司 | Negative pressure type exhaust gas recirculation (EGR) valve starting pressure and position feedback detection tool |
| CN203210033U (en) * | 2013-04-27 | 2013-09-25 | 上海菱重增压器有限公司 | Cutting inspection jig for pressurizer rotor assembly |
| CN204771626U (en) * | 2015-06-08 | 2015-11-18 | 宝鸡法士特齿轮有限责任公司 | Pair processing semicircle orifice anchor clamps |
| CN106860929A (en) * | 2017-01-16 | 2017-06-20 | 哈尔滨理工大学 | A kind of blood pump that suspension type impeller displacement measurement is coupled for magnetic liquid |
| CN208091359U (en) * | 2018-05-11 | 2018-11-13 | 常州市武滚轴承有限公司 | The full-automatic longhole survey instrument of steering wheel lower axle |
| CN209062924U (en) * | 2018-11-15 | 2019-07-05 | 哈尔滨理工大学 | A kind of blood pump special fixture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775538A (en) * | 2021-02-18 | 2021-05-11 | 苏州大学 | Welding fixture for measuring and controlling pressing force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |
|
| RJ01 | Rejection of invention patent application after publication |