CN2702283Y - Optical fiber level gauge transmission case - Google Patents
Optical fiber level gauge transmission case Download PDFInfo
- Publication number
- CN2702283Y CN2702283Y CN 200420066041 CN200420066041U CN2702283Y CN 2702283 Y CN2702283 Y CN 2702283Y CN 200420066041 CN200420066041 CN 200420066041 CN 200420066041 U CN200420066041 U CN 200420066041U CN 2702283 Y CN2702283 Y CN 2702283Y
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- CN
- China
- Prior art keywords
- steel wire
- transmission case
- master rotor
- auxiliary cylinder
- drive shaft
- 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
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- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses an optical fiber level gauge transmission case, principally comprising a case body, a drive shaft arranged in the case body, a home roll and an auxiliary roll; the home roll and the auxiliary roll are arranged on both ends of a drive shaft. The outer-diameter surfaces of the home roll and the auxiliary roll are provided with screw grooves; measuring steel wire winds in the groove on the outer-diameter surface of the home roll; one end of the measuring steel wire is fixed on the home roll, and the other end is connected with a float; a balance weight steel wire winds in the plow groove of the outer-diameter surface of the auxiliary roll; one end of the balance weight steel wire is fixed on the auxiliary roll; the other end is connected with a weight tup. A magnetic coupling device connected with the drive shaft is arranged outside of the case body. The function of the utility model is that the linear shift generated by the change of the measured level is converted into the angular shift and transmitted to the metering system of the optical fiber liquid level gauge through the magnet coupling device. The utility model used as the transmission part of the optical fiber liquid level gauge is suitable for all kinds of oil basins.
Description
Technical field
The utility model relates to a kind of transmission case that is applied to the expression liquid level change in the fiber optic liquid height meter.
Background technology
Common fiber optic liquid height meter is to realize the measurement of the liquid level change of liquid level vertical direction by two engaged wheels, driving wheel and metering steel wire, promptly when liquid level changes, liquid level can drive the float that swims on the liquid level and with the metering steel wire motion of float Joint, the metering steel wire forms cornerite by the changed course of engaged wheel to driving wheel, drive the driving wheel rotation by friction force during motion, and utilize the coaxial optical code disk of magnetic coupling drive and driving wheel to rotate synchronously.Because the rotation of optical code disk, the tooth bar on the optical code disk are cut off, connected light path, the make-and-break signal of this light path passes to data acquisition unit by optical cable, by opto-electronic conversion, changes digital quantity into, thereby realizes the measurement to the liquid level position variation.This frame mode realize that key that metering steel wire and driving wheel are synchronized with the movement is to measure the friction force between steel wire and the driving wheel, and friction force is direct more relevant than big or small with the counterweight between weight and float, with the material of driving wheel much relations is arranged also.There is following shortcoming in this structure: under the unsettled situation of condition of work, as medium in the storage tank purging is arranged, the medium face has stronger fluctuation, and tank body produces stronger vibrations etc., irregular skidding can occur between metering wire rope and the driving wheel, produce measuring error; In addition, the variation of operating ambient temperature also can cause the mechanical parts size to change, long-time running, and equipment error is big; Because float and weight stroke ratio are 1: 1, in jar, can't realize also that to the pillar of weight installation protection usefulness more can not adapt to for high viscosity medium and tempering tank, then because pillar is long, installation difficulty is also very big as if jar outer installation again.
Summary of the invention
In view of the foregoing, the purpose of this utility model provide a kind of be applied in the fiber optic liquid height meter, be used to prevent to measure produce between steel wire and master rotor and slide, avoid difference variation influence measuring accuracy relatively, be applicable to multiple medium and jar transmission case type, that be used to represent tested liquid level liquid level change.
For achieving the above object, the utility model by the following technical solutions: a kind of fiber optic liquid height meter transmission case is characterized in that: master rotor, auxiliary cylinder that it comprises casing, be installed in the main drive shaft in the casing and be installed in both ends of main drive shaft constitute;
Be processed with the screw-type groove at described master rotor and auxiliary cylinder external diameter surface; Be wound with the metering steel wire in the groove of master rotor external diameter surface, an end of metering steel wire is fixed on the master rotor, and the other end is connected with a float; Be wound with the counterweight steel wire in the groove of auxiliary cylinder external diameter surface, an end of counterweight steel wire is fixed on the auxiliary cylinder, and the other end is connected with a weight;
Outside described casing, be provided with a magnetic coupler mutually with main drive shaft.
Above described master rotor, also be equipped with one and prevent that described metering steel wire from deviating from pinch roller in the groove of primary drum surface.
In described casing, the below of auxiliary cylinder is provided with two counterweight steel wire angle sheaves in the counterweight steel wire mobile route, and described counterweight steel wire passes in the middle of described two counterweight steel wire angle sheaves.
The diameter ratio of described master rotor and auxiliary cylinder is 4: 1, adds the pillar of protection usefulness on described counter-balanced heavy hammer.
Also be provided with the ring flange of a static housing in the bottom of described casing.
Because the utility model is used to represent that metering steel wire one end of tested liquid level liquid level change is fixed on master rotor, the other end links to each other with float.This metering steel wire one end is fixed, and the other end twines or throw off the structure of master rotor with level change, can be the pass to master rotor of liquid level variation by float and metering steel wire 1: 1, and be converted into angular displacement, pass to the fiber optic liquid height meter metering system, measure accurately, error is little.In addition, because the utility model transmission case is a passive type, there is not power source, essential safety.
Description of drawings
Fig. 1 is a cut-open view of the present utility model
Fig. 2 is a principle of work sketch of the present utility model
Fig. 3 is the side view of Fig. 2
Embodiment
As shown in Figure 1 and Figure 2, the disclosed fiber optic liquid height meter transmission case of the utility model mainly is made of casing 1, the master rotor 3, the auxiliary cylinder 4 that are installed in the main drive shaft 2 in the casing and are installed in both ends of main drive shaft.
Be processed with the screw-type groove at master rotor 3 and auxiliary cylinder 4 external diameter surfaces.Be wound with metering steel wire 5 in the groove of master rotor 3 external diameter surfaces, an end of metering steel wire 5 is fixed on the master rotor 3, and the other end is connected with a float 6.Be wound with counterweight steel wire 7 in the groove of auxiliary cylinder 4 external diameter surfaces, an end of counterweight steel wire 7 is fixed on the auxiliary cylinder 4, and the other end is connected with a weight 8.Outside casing, be provided with a magnetic coupler 9 mutually with main drive shaft 2.
As shown in Figure 3, principle of work of the present utility model is: when tested constantization of liquid level, the moment equal and opposite in direction that resultant moment that float 6 gravity and suffered buoyancy thereof produce and weight 8 gravity produce, direction is opposite, transmission case is in equilibrium state, and the master rotor 3, auxiliary cylinder 4 and the main drive shaft 2 that are installed in main drive shaft 2 two ends do not rotate.When liquid level rises, float 6 suffered buoyancy increase, the moment that the resultant moment that float gravity and suffered buoyancy thereof produce produces less than weight gravity, main drive shaft 2 rotates under the effect of this torque difference in the transmission case, liquid level variation is converted into the angular displacement of transmission case main drive shaft, passes to the metering system of fiber optic liquid height meter by the magnetic coupler 9 that is fixed on transmission case casing outside, link to each other with main drive shaft.When liquid level descends, opposite with said process.
As shown in Figure 1, the utility model also is equipped with a pinch roller 10 above master rotor 3, prevents to measure steel wire 5 and deviates from the groove on master rotor 3 surfaces.In addition, in casing 1, the below of auxiliary cylinder 4 is provided with two counterweight steel wire angle sheaves 11 in counterweight steel wire 7 mobile routes, and counterweight steel wire 7 passes in the middle of two counterweight steel wire angle sheaves 11.
The diameter ratio of master rotor 3 and auxiliary cylinder 4 can be 1: 1; in specific embodiment of the utility model; the diameter ratio of master rotor 3 and auxiliary cylinder 4 is 4: 1, is 1/4th of level change thereby make the stroke of counter-balanced heavy hammer 8, and this also becomes possibility for installing protection additional to counter-balanced heavy hammer 8 with pillar.
For the utility model is fixed in the fiber optic liquid height meter, the bottom of the utility model casing 1 also is provided with one and is used for ring flange 12 in the fiber optic liquid height meter is fixed, is connected to the utility model casing.
The utility model is as the fiber optic liquid height meter running part, applicable to all kinds of oil tanks.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model is not limited thereto.Anyly all belong within the utility model protection domain based on the equivalent transformation on the technical solutions of the utility model.
Claims (5)
1, a kind of fiber optic liquid height meter transmission case is characterized in that: master rotor, auxiliary cylinder that it comprises casing, be installed in the main drive shaft in the casing and be installed in both ends of main drive shaft constitute;
Be processed with the screw-type groove at described master rotor and auxiliary cylinder external diameter surface; Be wound with the metering steel wire in the groove of master rotor external diameter surface, an end of metering steel wire is fixed on the master rotor, and the other end is connected with a float; Be wound with the counterweight steel wire in the groove of auxiliary cylinder external diameter surface, an end of counterweight steel wire is fixed on the auxiliary cylinder, and the other end is connected with a weight;
Outside described casing, be provided with a magnetic coupler mutually with main drive shaft.
2, a kind of fiber optic liquid height meter transmission case according to claim 1 is characterized in that: also be equipped with one and prevent that described metering steel wire from deviating from pinch roller in the groove of primary drum surface above described master rotor.
3, a kind of fiber optic liquid height meter transmission case according to claim 2, it is characterized in that: in described casing, the below of auxiliary cylinder is provided with two counterweight steel wire angle sheaves in the counterweight steel wire mobile route, described counterweight steel wire passes in the middle of described two counterweight steel wire angle sheaves.
4, a kind of fiber optic liquid height meter transmission case according to claim 3 is characterized in that: the diameter ratio of described master rotor and auxiliary cylinder is 4: 1, adds the pillar of protection usefulness on described counter-balanced heavy hammer.
5, a kind of fiber optic liquid height meter transmission case according to claim 4 is characterized in that: the ring flange that also is provided with a static housing in the bottom of described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066041 CN2702283Y (en) | 2004-06-16 | 2004-06-16 | Optical fiber level gauge transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066041 CN2702283Y (en) | 2004-06-16 | 2004-06-16 | Optical fiber level gauge transmission case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2702283Y true CN2702283Y (en) | 2005-05-25 |
Family
ID=34777751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420066041 Expired - Lifetime CN2702283Y (en) | 2004-06-16 | 2004-06-16 | Optical fiber level gauge transmission case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2702283Y (en) |
-
2004
- 2004-06-16 CN CN 200420066041 patent/CN2702283Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of registration: 20070228 Pledge (preservation): Pledge |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20070228 Pledge (preservation): Pledge |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20080526 Pledge (preservation): Pledge registration |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20080526 Pledge (preservation): Pledge |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20110429 Granted publication date: 20050525 Pledgee: Chaoyang City city credit cooperative Limited by Share Ltd Pledgor: Liu Wangeng Registration number: 2008210000437 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Optical fiber level gauge transmission case Effective date of registration: 20110429 Granted publication date: 20050525 Pledgee: Chaoyang bank Limited by Share Ltd Pledgor: Liu Wangeng Registration number: 2011990000159 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120409 Granted publication date: 20050525 Pledgee: Chaoyang bank Limited by Share Ltd Pledgor: Liu Wangeng Registration number: 2011990000159 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Optical fiber level gauge transmission case Effective date of registration: 20120409 Granted publication date: 20050525 Pledgee: Chaoyang bank Limited by Share Ltd Pledgor: Liu Wangeng Registration number: 2012990000132 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20121129 Granted publication date: 20050525 Pledgee: Chaoyang bank Limited by Share Ltd Pledgor: Liu Wangeng Registration number: 2012990000132 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140616 Granted publication date: 20050525 |