CN209662302U - Test device - Google Patents
Test device Download PDFInfo
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- CN209662302U CN209662302U CN201821382255.9U CN201821382255U CN209662302U CN 209662302 U CN209662302 U CN 209662302U CN 201821382255 U CN201821382255 U CN 201821382255U CN 209662302 U CN209662302 U CN 209662302U
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- magnet ring
- support
- test device
- levelling mechanism
- distance pieces
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Abstract
This application involves medical instruments field, a kind of test device of the magnetic force for testing between two magnet rings.The test device includes the first support being fixedly connected on pedestal and the second support that is slidably connected on pedestal, and the first magnet ring and the second magnet ring are individually fixed in the first support and the second support.The test device further includes levelling mechanism, and the levelling mechanism is used to adjust the depth of parallelism between first magnet ring and second magnet ring.Magnetic force between the two is tested again after guaranteeing the depth of parallelism between first magnet ring and second magnet ring, can help improve the accuracy of test result.
Description
Technical field
This application involves the test dresses of magnetic force between two magnet rings of medical instruments field more particularly to a kind of ventricular-assist
It sets.
Background technique
Current artificial heart technology brings haemolysis and thrombus etc. in order to avoid impeller is directly contacted with other mechanical parts
Problem, the suspended pattern generally by impeller in cavity is set as the mode of full magnetic suspension.In order to guarantee that impeller can be stablized
Be suspended in cavity, impeller up and down two sides magnetic force need mutually balance.Wherein side passes through the magnetic force of two sides above and below impeller
A pair of of magnet ring attracts each other to generate magnetic force, the offers support such as liquid stream that the other side is evoked by impeller rotation.In order to guarantee leaf
The full magnetic suspension of wheel needs accurately to test out the size of the magnetic force under fixed range between a pair of of magnet ring, could preferably carry out
The design of magnetic force configuration and magnet ring size.During the test, the magnetic force size between two magnet rings is by the depth of parallelism between magnet ring
Influence is very big, if two magnet ring end faces are not parallel, magnetic force can generate very big error.So in magnetic force test, for test
The depth of parallelism ability of device proposes higher requirement.
Utility model content
The application propose it is a kind of can multiple degrees of freedom adjustment be tested the test device of the depth of parallelism between magnet ring, the application test device
Including following technical solution:
A kind of test device, the magnetic force for testing between two magnet rings, including the first support being fixedly connected on pedestal
And it is slidably connected to the second support on pedestal, for fixing the first magnet ring, the second support is used for the first support
The second magnet ring is fixed, the test device further includes levelling mechanism, and the levelling mechanism is set to the first support or described
In second support, the levelling mechanism is used to adjust the depth of parallelism between first magnet ring and second magnet ring.
Wherein, the second support includes opposite sliding end and turning end, and the sliding end is slidingly attached to the base
Seat, the turning end and second magnet ring are connected, and the turning end is connect with the sliding end by the levelling mechanism.
Wherein, the levelling mechanism includes flexural pivot and locking member, and the flexural pivot rotatably connects relative to the second support
It connects, the locking member is movably connected in the second support, and the locking member is for compressing the flexural pivot.
Wherein, the levelling mechanism includes at least three along the movable telescopic rod in second magnet ring axis direction and institute
State locking member.
Wherein, the axis collinear both when first magnet ring and second magnet ring are fixed in the test device.
Wherein, the levelling mechanism includes three axis slide units, and the three axis slide unit is for adjusting first magnet ring and described
Concentricity between second magnet ring.
Wherein, when the second support is slided towards the first support, it may make second magnet ring and described first
Magnet ring is bonded to each other.
Wherein, the test device further includes retaining piece, and the retaining piece is in first magnet ring and second magnet ring
The distance between the first support and the second support are held when fitting.
Wherein, the test device includes distance pieces, and described distance pieces one end is bonded first magnet ring, the distance pieces
The other end is bonded second magnet ring, the distance pieces be used to determine between first magnet ring and second magnet ring away from
From.
Wherein, the distance pieces is multiple, and multiple distance pieces are different along the axis direction length of first magnet ring.
Herein described test device by the first support being fixed on the pedestal and is slidably connected to described
The second support on pedestal positions first magnet ring and second magnet ring respectively, reaches positioning and tests described first
The basis of magnetic force between magnet ring and second magnet ring.Simultaneously by the levelling mechanism to the first support or described second
The adjustment of bracket guarantees the depth of parallelism between first magnet ring and second magnet ring.Parallel first magnet ring and institute
The magnetic force test result stated between the second magnet ring is more accurate, is conducive to the full suspension Working mould for guaranteeing impeller according to magnetic data
Formula.
Detailed description of the invention
Fig. 1 is the schematic diagram of herein described test device；
Fig. 2 is the schematic diagram of another embodiment of herein described test device；
Fig. 3 is the schematic diagram of herein described test device another embodiment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.Base
Embodiment in the application, those of ordinary skill in the art are obtained all without making creative work
Other embodiments shall fall in the protection scope of this application.
Please refer to test device 100 shown in FIG. 1.Including pedestal 30, first support 10 and second support 20.First support
10 are fixed on pedestal 30, and second support 20 is slidably connected on pedestal 30 along first direction 001.The sliding of second support 20 connects
It connects and second support 20 is slided along first direction 001 towards first support 10.The application test device 100 is for testing
The magnetic force of a pair of of magnet ring.It is fixed with the first magnet ring 201 in first support 10, the second magnet ring 202 is fixed in second support 20.It can
With understanding, when test it needs to be determined that the axis of the first magnet ring 201 in the second magnet ring 202 axis towards consistent, i.e. the first magnetic
Ring 201 is parallel with the second magnet ring 202, could obtain accurate magnetic force test result.It will be seen from figure 1 that second support
Levelling mechanism 40 is additionally provided on 20, levelling mechanism 40 can make the second magnet ring 202 rotate relative to the first magnet ring 201, in turn
Guarantee parallel between the first magnet ring 201 and the second magnet ring 202.Specifically, levelling mechanism 40 provide the second magnet ring 202 relative to
The freedom degree of first magnet ring 201 rotation, tester can actively rotate the second magnetic according to the installation condition of the first magnet ring 201
Ring 202 rotates it relative to the first magnet ring 201.After second magnet ring 202 to be determined is parallel with the first magnet ring 201, solidification leveling
The posture of mechanism 40, then the magnetic force between the first magnet ring 201 and the second magnet ring 202 is detected, it can obtain more true
Detection effect.
In the embodiment in figure 1, levelling mechanism 40 is set in second support 20, in remaining some embodiment, leveling
Mechanism 40 also can be set in first support 10.Have no effect on the implementation of application scheme.
Continuing with reference to Fig. 1, second support 20 includes opposite sliding end 21 and turning end 22.Sliding end 21 is slidably connected
To pedestal 30, turning end 22 and the second magnet ring 202 are connected, and turning end 22 is connect with sliding end 21 by levelling mechanism 40.In
In the embodiment of Fig. 1, levelling mechanism 40 includes flexural pivot 41 and locking member 42.Specifically, sliding end 21 is equipped with receiving flexural pivot 41
Container 43, container 43 are preferably taper or triangle.Flexural pivot 41 is fixed on turning end 22, and flexural pivot 41 has relative to container
43 along any axial-rotation function, therefore flexural pivot 41 can drive rotational segment 22 relative to sliding end 21 arbitrarily rotate, in turn
It drives the second magnet ring 202 relative to the first arbitrarily rotation of magnet ring 201, and makes the second magnet ring 202 and the first magnet ring 201 relatively flat
Row.The locking that locking member 42 shows as penetrating in the embodiment in figure 1 the bolt 421 of second support 20 and contacts with flexural pivot 41
Block 422.It should be understood that turning bolt 421 makes latch segment 422 after the second magnet ring 202 is parallel relative to the first magnet ring 201
It is compressed with flexural pivot 41, the posture of turning end 22 can be fixed, guarantee the second magnet ring 202 relative to the parallel of the first magnet ring 201.
It should be understood that flexural pivot 41 can also be fixedly arranged on sliding end 21, container 43 is set in turning end 22, so that
Turning end 22 is rotated relative to sliding end 21；Levelling mechanism 40 can also be set in first support 10, by rotating the first magnetic
Ring 201 realizes that these mapping modes do not affect the implementation of application scheme in parallel to match the second magnet ring 202.
Referring to Fig. 2, levelling mechanism 40 includes the movable telescopic rod 44 of three axis directions along the second magnet ring 202 and lock
Tight part 42.Three telescopic rods 44 form three fulcrums of the turning end 22 relative to sliding end 21, and three fulcrums are triangular in shape.Together
When, second support 20 is equipped with the via hole 21 cooperated with telescopic rod 44, and via hole 21 and telescopic rod 44 are clearance fit.Fig. 2 is to cut open
Face figure merely illustrates the structure of two telescopic rods 44 in Fig. 2.It should be understood that because three telescopic rods 44 can be respectively independent
It is flexible, it is aided with the via hole 21 of clearance fit, turning end 22 forms three telescopic fulcrum connections relative to sliding end 21
Structure.Turning end 22 equally may be implemented relative to sliding end 21 in multiaxis in the independent telescope and clearance fit of three telescopic rods 44
Upward spinning movement, and be locked respectively by locking member 42.In Fig. 2, locking member 42 shows as bolt.Certainly, it stretches
The rotation angle range of contracting rod structure is smaller, but works as the second magnet ring 202 not parallel angle relative to the first magnet ring 201 after mounting
On the basis of degree is little, three equally can satisfy the use needs of leveling with the scheme of telescopic rod 44.Further, it can also set
Four or more telescopic rods 44 are set to be leveled, improve accuracy.
First magnet ring 201 and second magnet ring 202 are separately fixed at appropriate to the occasion same in first support 10 and second support 20
Axis is fixed, i.e. the axis collinear of the axis of the first magnet ring 201 and the second magnet ring 202.The magnetic force measured in this way is not easy to occur inclined
Difference.On the other hand, can also be as shown in Fig. 2, levelling mechanism 40 further includes having three axis slide units 45.Three axis slide units 45 are the prior art
In a kind of relatively conventional adjusting slide unit, can make turning end 22 relative to sliding end 21 orthogonal three along space
Axis direction arbitrarily slides.The embodiment of three axis slide units 45 is more, can be used for being further ensured that the first magnet ring 201 and second
Concentricity between magnet ring 202.
It, can be directly by the second magnet ring 202 and the first magnetic using second support 20 towards the sliding function of first support 10
Ring 201 is bonded to each other to guarantee the depth of parallelism, then again by the sliding of second support 20 by the second magnet ring 202 and the first magnet ring
201 distances for being placed into demand carry out magnetic force test.Another embodiment is shown in Fig. 3, and test device 100 can also include distance pieces
50.Opposite two end faces of distance pieces 50 are parallel to each other, and the distance between opposite two end faces of distance pieces 50 are also the first magnetic
Dynamometry distance between ring 201 and the second magnet ring 202.Distance pieces 50 is placed on first support 10 and second support 20 as a result,
Between, and the first magnet ring 201 and the second magnet ring 202 two end faces opposite with distance pieces 50 are bonded, then using locking
Part 42 locks levelling mechanism 40, can disposably determine parallel between the first magnet ring 201 and the second magnet ring 202, makes simultaneously
The distance between first magnet ring 201 and the second magnet ring 202 are ranging distance.
Further, for different size of first magnet ring 201 and the second magnet ring 202, the distance for detecting magnetic force may
Difference, therefore distance pieces 50 can be set to multiple, distance is different between the respective opposing sides of multiple distance pieces 50, i.e., multiple
Distance pieces 50 is different along the axis direction length of the first magnet ring 201.It can be needed for different measuring distances, selection is suitable
Distance pieces 50 levels work to carry out auxiliary.
In the fig. 3 embodiment, test device 100 further includes retaining piece 60.During the locking of locking member 42, because
The sliding attribute of second support 20 may cause second support 20 and slide relative to pedestal 30, second support 20 is caused to exist
Offset on pedestal 30, and then influence actual test result.Retaining piece 60 can be in the first magnet ring 201 and the second magnet ring 202
When fitting, including the first magnet ring 201 by distance pieces 50 be bonded with the second magnet ring 202 when, retaining piece 60 locking first support 10
The distance between second support 20.In the fig. 3 embodiment, retaining piece 60 show as first support 10 and second support 20 it
Between pull rod, in remaining some embodiment, the embodiments such as lock-screw, elastic pressuring plate can also be shown as.Further, it is
The different ranging distance of cooperation, the retaining piece 60 of pull rod form can also show as the form (not shown) of elastic draw bar.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (10)
1. a kind of test device, the magnetic force for testing between two magnet rings, which is characterized in that including being fixedly connected on pedestal
First support and the second support being slidably connected on pedestal, the first support is for fixing the first magnet ring, and described second
Bracket is for fixing the second magnet ring, and the test device further includes levelling mechanism, and the levelling mechanism is set to described first
On frame or the second support, the levelling mechanism is parallel between first magnet ring and second magnet ring for adjusting
Degree.
2. test device as described in claim 1, which is characterized in that the second support includes opposite sliding end and rotation
End, the sliding end are slidingly attached to the pedestal, and the turning end and second magnet ring are connected, the turning end with it is described
Sliding end is connected by the levelling mechanism.
3. test device as claimed in claim 2, which is characterized in that the levelling mechanism includes flexural pivot and locking member, the ball
Hinge is rotatably connected relative to the second support, and the locking member is movably connected in the second support, the locking member
For compressing the flexural pivot.
4. test device as claimed in claim 3, which is characterized in that the levelling mechanism includes at least three along second magnetic
The movable telescopic rod in ring axis direction and the locking member.
5. the test device as described in claim any one of 1-4, which is characterized in that first magnet ring and second magnet ring are solid
Axis collinear both when being scheduled in the test device.
6. test device as claimed in claim 5, which is characterized in that the levelling mechanism includes three axis slide units, and three axis is sliding
Platform is used to adjust the concentricity between first magnet ring and second magnet ring.
7. the test device as described in claim any one of 1-4, which is characterized in that the second support is towards the first support
When sliding, second magnet ring can be made to be bonded to each other with first magnet ring.
8. test device as claimed in claim 7, which is characterized in that the test device further includes retaining piece, the retaining piece
The distance between the first support and the second support is held when first magnet ring and second magnet ring are bonded.
9. the test device as described in claim any one of 1-4, which is characterized in that the test device includes distance pieces, described
Distance pieces one end is bonded first magnet ring, and the distance pieces other end is bonded second magnet ring, and the distance pieces is for true
Fixed the distance between first magnet ring and second magnet ring.
10. test device as claimed in claim 9, which is characterized in that the distance pieces be it is multiple, multiple distance pieces are along institute
The axis direction length for stating the first magnet ring is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382255.9U CN209662302U (en) | 2018-08-23 | 2018-08-23 | Test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382255.9U CN209662302U (en) | 2018-08-23 | 2018-08-23 | Test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209662302U true CN209662302U (en) | 2019-11-22 |
Family
ID=68560093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821382255.9U Active CN209662302U (en) | 2018-08-23 | 2018-08-23 | Test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209662302U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922822A (en) * | 2021-01-22 | 2021-06-08 | 深圳核心医疗科技有限公司 | Testing device |
| CN114344703A (en) * | 2021-12-13 | 2022-04-15 | 深圳核心医疗科技有限公司 | Magnetic force test tool |
-
2018
- 2018-08-23 CN CN201821382255.9U patent/CN209662302U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922822A (en) * | 2021-01-22 | 2021-06-08 | 深圳核心医疗科技有限公司 | Testing device |
| CN112922822B (en) * | 2021-01-22 | 2022-09-06 | 深圳核心医疗科技有限公司 | Testing device |
| CN114344703A (en) * | 2021-12-13 | 2022-04-15 | 深圳核心医疗科技有限公司 | Magnetic force test tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 1601, building D3, Nanshan Zhiyuan, No. 1001, Xueyuan Avenue, Changyuan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: Shenzhen Core Medical Technology Co.,Ltd. Address before: 518000 room 1106, Pioneer Park, Lishan road University Town, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN CORE MEDICAL TECHNOLOGY Co.,Ltd. |