CN205192678U - Measure device of high -pressure syringe pressure - Google Patents
Measure device of high -pressure syringe pressure Download PDFInfo
- Publication number
- CN205192678U CN205192678U CN201520905604.0U CN201520905604U CN205192678U CN 205192678 U CN205192678 U CN 205192678U CN 201520905604 U CN201520905604 U CN 201520905604U CN 205192678 U CN205192678 U CN 205192678U
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- bearing
- elastic body
- ring
- jump ring
- jump
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Abstract
The utility model discloses a measure device of high -pressure syringe pressure, it includes: the sensor portion of holding of bearing, the elastomer of accommodating the bearing, fixed elastomer, laminating at the foil gage in the elastomer outside, place the elastomer in and be used for blocking the bearing first jump ring, place the sensor portion of holding in and block the elastomer in order to prevent its outside second jump ring and one end and bearing transmission coordination who moves and to pass the central ball module of elastomer. The utility model discloses compact structure adopts direct measurement, and the precision is high, and the reliability is high.
Description
Technical field
The utility model relates to a kind of device measuring high pressure injector pressure.
Background technology
Existing high pressure injector pressure measurement method, mainly measured by setting pressure sensor on injection putter front end or wall, but pressure sensor signal and electric power connection line can move along with injection putter motion, due to connecting line to-and-fro movement, very easily cause circuit to damage, reduce the security of high pressure injector.Certain methods is also had to be measured by fixation pressure sensor between syringe body and syringe deck, this kind of method increases the overall dimensions of syringe, and be the thrust being changed into push rod by the pulling force between syringe deck and syringe body, precision decreases, and it is CN2717454Y patent that similar structures refers to Chinese utility model notification number.
Utility model content
In view of the foregoing, the utility model object is to provide a kind of device measuring high pressure injector pressure.
For achieving the above object, the utility model adopts following technical scheme to be: a kind of device measuring high pressure injector pressure, and it comprises: the elastic body of bearing, collecting bearing, fixing elastomeric sensor accommodating portion, be fitted in foil gauge outside elastic body, be placed in elastic body and for block bearing the first jump ring, be placed in sensor accommodating portion and block elastic body outwards the second jump ring of movement and one end and bearing-transmission join the ball-screw module being combined through elastic body center to prevent it.
On the basis of technique scheme, comprise following technical scheme further:
Described sensor accommodating portion has the second jump-ring slot of accommodation second jump ring, protruding ring, for drawing the first wire casing of foil gauge wiring and coordinating with elastic body and prevent the trimming limited block that rotates of circumference.
Described bearing is double-row angular contact bal bearing, it comprises inner ring and outer shroud, wherein the height of inner ring is greater than the height of outer shroud, the upper surface of inner ring contacts with the E type jump ring in ball screw module and inner ring is rotated with the rotation of screw mandrel, and the upper surface of outer shroud coordinates with the first jump ring and the lower surface of outer shroud coordinates with elastomeric bottom.
Described elastomeric abutting end upper surface coordinates with the second jump ring, and lower surface then coordinates with protruding ring, and abutting end side is provided with trimming, coordinate with the trimming limited block in sensor accommodating portion, elastic body can be fixed, prevent its circumference from rotating, the opposite side of abutting end has the second wire casing; Elastic body inside has the first jump-ring slot, and the upper surface of bottom coordinates with the lower surface of outer shroud, and elastic body bottom has through hole simultaneously, and the end of inner ring and ball screw module is passed.
Described ball screw module front end is push rod, middle-end is feed screw nut, rear end is screw mandrel end, is wherein provided with the E type jump ring moved backward for stop nut between feed screw nut and screw mandrel end, and E type jump ring is resisted against the upper surface of the inner ring of bearing and applies the reacting force of push rod to bearing.
Due to the utilization of technique scheme, the utility model has following advantages:
Compact conformation, adopt the direct method of measurement, precision is high, and reliability is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is overall exploded view of the present utility model.
Fig. 2 is the cut-open view of sensor accommodating portion in the utility model.
Fig. 3 is the front view of the utility model centre bearer.
Fig. 4 is the cut-open view of the utility model elastomer.
Fig. 5 is the overall diagram of the utility model elastomer.
Fig. 6 is the structural drawing of ball-screw module in the utility model.
Embodiment
Embodiment: as shown in figures 1 to 6, the utility model provides a kind of specific embodiment measuring the device of high pressure injector pressure, it comprise bearing 1, the elastic body 2 of collecting bearing 1, fixing elastic body 2 sensor accommodating portion 3, be fitted in foil gauge 4 outside elastic body 2, be placed in elastic body 2 and for block bearing 1 the first jump ring 5, be placed in sensor accommodating portion 3 and block elastic body 2 outwards the ball-screw module 7 being combined through elastic body 2 center is joined in the second jump ring 6 of movement and one end and bearing 1 transmission to prevent it.
As shown in Figure 2, sensor accommodating portion 3 is positioned on the rear end panel 31 of high pressure injector.The upper surface 32 of sensor accommodating portion 3 is higher than rear end panel 31.Sensor accommodating portion 3 having the second jump-ring slot 33 of accommodation second jump ring 6, preventing its outwards movement for blocking elastic body 2.Be provided with protruding ring inside sensor accommodating portion 3, the upper surface 34 of protruding ring contacts with the lower surface of the abutting end 21 of elastic body 2, spacing for elastic body 2.Sensor accommodating portion 3 is provided with the first wire casing 35, for drawing signal wire and the power lead of foil gauge 4.Be provided with trimming limited block 36 in the middle part of sensor accommodating portion 3 simultaneously, coordinate the trimming on abutting end on elastic body 2, can prevent elastic body 2 circumference from rotating.
As shown in Figure 3, bearing 1 is preferably double-row angular contact bal bearing, can bear larger radial load.The height of the inner ring 11 of bearing 1 is greater than the height of outer shroud 12, and the upper surface of bearing inner ring 11 contacts with the E type jump ring in ball screw module 7, and inner ring 11 can be rotated with the rotation of screw mandrel.The upper surface 121 of outer shroud 12 coordinates with the first jump ring 5, for limiting the axially-movable of bearing 1.The lower surface 122 of outer shroud 12 coordinates with the bottom 24 of elastic body 2, for holding bearing 1, prevents its axially-movable.
As illustrated in figures 4-5, elastic body 2 external form is flowerpot shape.The upper surface of its abutting end 21 will coordinate with the second jump ring 6, and lower surface will coordinate with the upper surface 34 of protruding ring.Abutting end 21 side is provided with trimming 26, for coordinating the trimming limited block 36 that sensor accommodating portion 3 leaves, elastic body 2 can be fixed, and prevents its circumference from rotating.The opposite side of abutting end 21 has the second wire casing 27, for drawing signal wire and the power lead of foil gauge 4.Elastic body 2 inside has the first jump-ring slot 22, holds the first jump ring 5, for limiting bearing 1 in elastic body 2 inner chamber 23.The upper surface 24 of elastic body 2 bottom coordinates with the lower surface 122 of outer shroud 12, and elastic body 2 bottom has through hole 25 simultaneously, and inner ring 11 can be made to pass with the end 74 of ball screw module 7.First jump-ring slot 22, through hole 25 are all connected with inner chamber 23.
As shown in Figure 6, ball screw module 7 front end is push rod 71, and it is for the plunger in push-and-pull syringe, and middle-end is feed screw nut 72, is connected with push rod 71 by screw thread.Nut bottom is that E type jump ring 73 moves backward for stop nut, withstands the upper surface 111 of the inner ring 11 of bearing 1 simultaneously, applies the reacting force of push rod to bearing 1.Screw mandrel end 74 is rear end and passes whole device.
During installation, first bearing 1 being loaded in elastic body 2, and the first jump ring 5 is placed in the first jump-ring slot 22 of elastic body 2, for blocking bearing 1, preventing its axially-movable.Stick 4 foil gauges 4 on outside the bottom of elastic body 2, form an electric bridge, for the thrust of the deformation and screw mandrel of measuring elastic body 2.The signal wire of four foil gauges 4 and power lead are placed along the wire casing 27 of elastic body 2.Then the elastomer shell 2 containing bearing 1 assembled is positioned in sensor accommodating portion 3, in put procedure, the trimming 26 of the abutting end of elastic body 2 is coordinated with the trimming limited block 36 that sensor accommodating portion 3 leaves, and the second jump ring 6 is placed in the second jump-ring slot 33 of sensor accommodating portion 3, for blocking elastic body 2, prevent its axially-movable.Finally the end of ball screw module 7 is inserted in the inner ring 11 of bearing 1, until the E type jump ring on ball screw module 7 withstands the upper surface 111 of bearing 1 inner ring 11, so far whole device installation.
When high pressure injector works, ball screw module 7 will rotate, and the inner ring 11 of bearing 1 can together be rotated thereupon.If ball screw travels forward, i.e. push rod 71 driven forward plunger, a pressure can be produced in syringe, ball screw can be subject to a reacting force simultaneously, is withstood inner ring 11 projection of bearing 1, in axial direction by the E type jump ring on screw mandrel end, extruding elastic body 2, make it to produce deformation, namely by the thrust of the distortion measurement push rod of generation, thus obtain the pressure in high pressure injector syringe.
Thus on the basis of said apparatus, the utility model provides a kind of method measuring high pressure injector pressure further, and it comprises following number of assembling steps in earlier stage:
S1: first loaded in elastic body 2 by bearing 1, and the first jump-ring slot 22 the first jump ring 5 being placed in elastic body 2, for blocking bearing 1, prevent its axially-movable;
S2: stick 4 foil gauges 4 on then outside elastic body 2, forms an electric bridge, and for the thrust of the deformation and screw mandrel of measuring elastic body 2, the signal wire of four foil gauges 4 and power lead are placed along the wire casing 27 of elastic body 2;
S3: then the elastomer shell 2 containing bearing 1 assembled is positioned in sensor accommodating portion 3, in put procedure, the trimming 26 of the abutting end of elastic body 2 is coordinated with the trimming limited block 36 that sensor accommodating portion 3 leaves, and the second jump ring 6 is placed in the second jump-ring slot 33 of sensor accommodating portion 3, for blocking elastic body 2, prevent its axially-movable;
S4: again the end of ball screw module 7 is inserted in the inner ring 11 of bearing 1, until the E type jump ring on ball screw module 7 withstands the upper surface 111 of bearing 1 inner ring 11;
S5: when high pressure injector works, ball screw module 7 will rotate, the inner ring 11 of bearing 1 can together be rotated thereupon; If ball screw travels forward, i.e. push rod 71 driven forward plunger, a pressure can be produced in syringe, ball screw can be subject to a reacting force simultaneously, is withstood inner ring 11 projection of bearing 1, in axial direction by the E type jump ring on screw mandrel end, extruding elastic body 2, make it to produce deformation, namely by the thrust of the distortion measurement push rod of generation, thus obtain the pressure in high pressure injector syringe.
Certain above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the Spirit Essence of the utility model main technical schemes or modification, all should be encompassed within protection domain of the present utility model.
Claims (5)
1. measure a device for high pressure injector pressure, it is characterized in that it comprises: bearing, the elastic body of collecting bearing, fixing elastomeric sensor accommodating portion, be fitted in foil gauge outside elastic body, be placed in elastic body and for block bearing the first jump ring, be placed in sensor accommodating portion and block elastic body outwards the second jump ring of movement and one end and bearing-transmission join the ball-screw module being combined through elastic body center to prevent it.
2. a kind of device measuring high pressure injector pressure according to claim 1, is characterized in that: described sensor accommodating portion has the second jump-ring slot of accommodation second jump ring, protruding ring, for drawing the first wire casing of foil gauge wiring and coordinating with elastic body and prevent the trimming limited block that rotates of circumference.
3. a kind of device measuring high pressure injector pressure according to claim 2, it is characterized in that: described bearing is double-row angular contact bal bearing, it comprises inner ring and outer shroud, wherein the height of inner ring is greater than the height of outer shroud, the upper surface of inner ring contacts with the E type jump ring in ball screw module and inner ring is rotated with the rotation of screw mandrel, and the upper surface of outer shroud coordinates with the first jump ring and the lower surface of outer shroud coordinates with elastomeric bottom.
4. a kind of device measuring high pressure injector pressure according to claim 3, it is characterized in that: described elastomeric abutting end upper surface coordinates with the second jump ring, lower surface then coordinates with protruding ring, and abutting end side is provided with trimming, coordinate with the trimming limited block in sensor accommodating portion, elastic body can be fixed, prevent its circumference from rotating, the opposite side of abutting end has the second wire casing; Elastic body inside has the first jump-ring slot, and the upper surface of bottom coordinates with the lower surface of outer shroud, and elastic body bottom has through hole simultaneously, and the end of inner ring and ball screw module is passed.
5. a kind of device measuring high pressure injector pressure according to claim 4, it is characterized in that: described ball screw module front end is push rod, middle-end is feed screw nut, rear end is screw mandrel end, wherein be provided with the E type jump ring moved backward for stop nut between feed screw nut and screw mandrel end, E type jump ring is resisted against the upper surface of the inner ring of bearing and applies the reacting force of push rod to bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905604.0U CN205192678U (en) | 2015-11-13 | 2015-11-13 | Measure device of high -pressure syringe pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905604.0U CN205192678U (en) | 2015-11-13 | 2015-11-13 | Measure device of high -pressure syringe pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205192678U true CN205192678U (en) | 2016-04-27 |
Family
ID=55785657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520905604.0U Withdrawn - After Issue CN205192678U (en) | 2015-11-13 | 2015-11-13 | Measure device of high -pressure syringe pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205192678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319003A (en) * | 2015-11-13 | 2016-02-10 | 南京感控通化工产品经营部 | Device and method for measuring pressure of high pressure injector |
-
2015
- 2015-11-13 CN CN201520905604.0U patent/CN205192678U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319003A (en) * | 2015-11-13 | 2016-02-10 | 南京感控通化工产品经营部 | Device and method for measuring pressure of high pressure injector |
| CN105319003B (en) * | 2015-11-13 | 2019-06-28 | 南京感控通化工产品经营部 | Measure the device and method of high pressure injector pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20190628 |