CN208296940U - A kind of liquid level measure of the change device - Google Patents
A kind of liquid level measure of the change device Download PDFInfo
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- CN208296940U CN208296940U CN201820862002.5U CN201820862002U CN208296940U CN 208296940 U CN208296940 U CN 208296940U CN 201820862002 U CN201820862002 U CN 201820862002U CN 208296940 U CN208296940 U CN 208296940U
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- liquid level
- float
- fixedly connected
- truckle
- ratio enlargement
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Abstract
The utility model relates to aero-engine experimental field, in particular to a kind of liquid level measure of the change device, it includes: float (1) that repacking, which is set, and position height changes with liquid level；Ratio enlargement device (2), to amplify the changing value of the float (1) position height；And observation display device (3), to observe the amplified height change value of the ratio enlargement device (2).Above-mentioned apparatus, float position height is amplified with liquid level changing value by ratio enlargement device, the actual change value of liquid level can be obtained by calculation according to the value of amplification afterwards, thus obtained liquid level changing value relative error is smaller, the accuracy that oil consumption calculates in oil tank can be improved, aero-engine performance is made more be bonded actual assessment accordingly.
Description
Technical field
The utility model relates to aero-engine experimental field, in particular to a kind of liquid level measure of the change device.
Background technique
The development of aero-engine be unable to do without aero-engine experiment, multiple parameters involved in aero-engine experimentation
Detection, wherein oil consumption is one of conventional detection amount.Currently, domestic mainly to observe to obtain lubricating oil by visual liquidometer
The variation of liquid level in case, so that oil consumption be calculated.
In the case where oil consumption is little, lubricating oil liquid level variation in oil tank is small, is observed by visual liquidometer
The obtained oil tank of method in liquid level variation relative error it is larger, to influence the accuracy of oil consumption calculated result,
And then assessment of the influence to aero-engine performance.
Summary of the invention
The purpose of the utility model is to provide a kind of liquid level measure of the change devices, to solve the above problems.
The technical solution of the utility model is:
A kind of liquid level measure of the change device, comprising:
Float, position height change with liquid level；
Ratio enlargement device, to amplify the changing value of float position height；And
Display device is observed, to observe the amplified height change value of ratio enlargement device.
Optionally, observation display device includes:
Scale；And
Pointer indicates the amplified height change value of ratio enlargement device on scale.
Preferably, ratio enlargement device includes:
Lever, the distance at both ends to fulcrum are respectively L1, L2 and L1 < L2；
Measuring rod, one end are fixedly connected with the float, and the other end and the lever are solid to one end that pivot distance is L1
Fixed connection；And
Indicating arm, one end are fixedly connected with the pointer, and the other end and the lever are solid to one end that pivot distance is L2
Fixed connection.
Ratio enlargement device uses the form of lever, and measurement sensitivity is high, and can pass through the ratio side of adjusting L1 and L2
Just amplification factor of the ratio enlargement device to float position height with liquid level changing value is controlled, to meet different detections
It is required that.
Preferably, ratio enlargement device can also use the design structure of large and small pulley coaxle comprising:
Truckle, radius R1；
Big pulley, radius R2, R2 > R1 and is coaxially fixed with truckle；
Measurement rope, one end are fixedly connected with float, and the other end is fixedly connected with truckle outer；
Observation rope, one end are fixedly connected with pointer, and the other end is fixedly connected with big pulley outer；And
Pulley aligning device applies twisting resistance to truckle, to drive the truckle to rotate, produces measurement rope to float
Raw pulling force straight up, the pulling force are less than the gravity of float.
Ratio enlargement device amplifying device is using the form of the design of large and small pulley coaxle, and structure is simple, and stability is good,
Ratio enlargement device can be easily controlled to float position height with liquid level changing value by adjusting the ratio of R1 and R2
Amplification factor, to meet different testing requirements.
Preferably, above-mentioned pulley aligning device includes:
Fixed block；And
Spring, one end are connect with fixed block, and the other end is fixedly connected with truckle, and deformation occurs applies torsion to truckle
Turn power.
Generating means using spring as the twisting resistance of pulley aligning device, simple, practical, acquisition and install convenient.
The utility model has the advantage of provide a kind of liquid level measure of the change device, which includes a ratio enlargement
Device can amplify float position height with liquid level changing value, obtain liquid by what is calculated according to the value of amplification
The actual change value of position height, thus obtained liquid level changing value relative error is smaller, and lubricating oil in oil tank can be improved and consume
The accuracy calculated is measured, aero-engine performance is made more be bonded actual assessment accordingly.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model liquid level measure of the change device.
Fig. 2 the utility model liquid level measure of the change device ratio enlargement device 2 uses the structural schematic diagram of lever design.
Fig. 3 the utility model liquid level measure of the change device ratio enlargement device 2 uses the signal of large and small pulley coaxle structure
Figure.
Specific embodiment
To keep the purposes, technical schemes and advantages of the utility model implementation clearer, below in conjunction with the utility model
Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.In the accompanying drawings, from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Described reality
Applying example is the utility model a part of the embodiment, instead of all the embodiments.Below with reference to the embodiment of attached drawing description
It is exemplary, it is intended to for explaining the utility model, and should not be understood as limiting the present invention.It is practical new based on this
Embodiment in type, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, fall within the protection scope of the utility model.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
The limitation of novel protected range.
1-3 is described in further details the utility model with reference to the accompanying drawing.
The utility model provides a kind of liquid level measure of the change device, comprising:
Float 1, position height changes with liquid level；
Ratio enlargement device 2, to amplify the changing value of 1 position height of float；And
Display device 3 is observed, to observe the amplified height change value of ratio enlargement device 2.
Further, observation display device 3 includes:
Scale；And
Pointer indicates the amplified height change value of ratio enlargement device 2 on scale.
As shown in Fig. 2, ratio enlargement device 2 may include:
Lever, the distance at both ends to fulcrum are respectively L1, L2 and L1 < L2；
Measuring rod, one end are fixedly connected with the float 1, and the other end and the lever are solid to one end that pivot distance is L1
Fixed connection；And
Indicating arm, one end are fixedly connected with the pointer, and the other end and the lever are solid to one end that pivot distance is L2
Fixed connection.
Form of the ratio enlargement device 2 using lever, the scale X that record pointer indicates on scale before experiment1, experiment
After the scale X that is indicated on scale of record pointer2, then the changing value of lubricating oil liquid level is in oil tank | X1- X2|/n1,
Middle n1=L2/L1.
As shown in figure 3, ratio enlargement device 2, can also use the design structure of large and small pulley coaxle comprising:
Truckle, radius R1；
Big pulley, radius R2, R2 > R1 and is coaxially fixed with truckle；
Measurement rope, one end are fixedly connected with float, and the other end is fixedly connected with truckle outer；
Observation rope, one end are fixedly connected with pointer, and the other end is fixedly connected with big pulley outer；And
Pulley aligning device applies twisting resistance to truckle, to drive the truckle to rotate, produces measurement rope to float
Raw pulling force straight up, the pulling force are less than the gravity of float.
Optional above-mentioned pulley aligning device includes:
Fixed block；And
Spring, one end are connect with fixed block, and the other end is fixedly connected with truckle, and deformation occurs applies torsion to truckle
Turn power.
Ratio enlargement device 2 is using the form of large and small pulley coaxle setting, and record pointer indicates on scale before experiment
Scale X3, the scale X4 that record pointer indicates on scale after experiment, then the changing value of lubricating oil liquid level is in oil tank |
X3-X4 |/n2, wherein n2=R2/R1.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, the change that can be readily occurred in
Change or replace, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with described
Subject to scope of protection of the claims.
Claims (5)
1. a kind of liquid level measure of the change device characterized by comprising
Float (1), position height changes with liquid level；
Ratio enlargement device (2), to amplify the changing value of the float (1) position height；And
It observes display device (3), to observe the amplified height change value of the ratio enlargement device (2).
2. liquid level measure of the change device according to claim 1, which is characterized in that the observation display device (3) includes:
Scale；And
Pointer indicates the amplified height change value of the ratio enlargement device (2) on the scale.
3. liquid level measure of the change device according to claim 2, which is characterized in that the ratio enlargement device (2) includes:
Lever, the distance at both ends to fulcrum are respectively L1, L2, and L1 < L2；
Measuring rod, one end are fixedly connected with the float (1), and the other end is fixed with one end that the lever to pivot distance is L1
Connection；And
Indicating arm, one end are fixedly connected with the pointer, and the other end and the lever connect to one end that pivot distance is L2 is fixed
It connects.
4. liquid level measure of the change device according to claim 2, which is characterized in that the ratio enlargement device (2) includes:
Truckle, radius R1；
Big pulley, radius R2, R2 > R1 and is coaxially fixed with the truckle；
Measurement rope, one end are fixedly connected with the float (1), and the other end is fixedly connected with the truckle outer；
Observation rope, one end are fixedly connected with the pointer, and the other end is fixedly connected with the big pulley outer；And
Pulley aligning device applies twisting resistance to the truckle, and the twisting resistance is able to drive the truckle rotation, makes institute
The pulling force of measurement rope straight up to the float (1) generation is stated, the pulling force is less than the gravity of the float (1).
5. liquid level measure of the change device according to claim 4, which is characterized in that the pulley aligning device includes:
Fixed block；And
Spring, one end are connect with the fixed block, and the other end is fixedly connected with the truckle, and deformation occurs to the small cunning
Wheel applies the twisting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820862002.5U CN208296940U (en) | 2018-06-05 | 2018-06-05 | A kind of liquid level measure of the change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820862002.5U CN208296940U (en) | 2018-06-05 | 2018-06-05 | A kind of liquid level measure of the change device |
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| Publication Number | Publication Date |
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| CN208296940U true CN208296940U (en) | 2018-12-28 |
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| CN201820862002.5U Active CN208296940U (en) | 2018-06-05 | 2018-06-05 | A kind of liquid level measure of the change device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781677A (en) * | 2020-12-30 | 2021-05-11 | 济南市第三人民医院 | Laboratory reagent dosage monitoring device for clinical laboratory of hospital |
-
2018
- 2018-06-05 CN CN201820862002.5U patent/CN208296940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781677A (en) * | 2020-12-30 | 2021-05-11 | 济南市第三人民医院 | Laboratory reagent dosage monitoring device for clinical laboratory of hospital |
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