CN208269989U - A kind of double waist wheel gas flowmeters of comprehensive lubrication - Google Patents
A kind of double waist wheel gas flowmeters of comprehensive lubrication Download PDFInfo
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- CN208269989U CN208269989U CN201820798086.0U CN201820798086U CN208269989U CN 208269989 U CN208269989 U CN 208269989U CN 201820798086 U CN201820798086 U CN 201820798086U CN 208269989 U CN208269989 U CN 208269989U
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Abstract
The utility model provides a kind of double waist wheel gas flowmeters of comprehensive lubrication, it includes shell, former and later two metering cavities are equipped in the shell, waist wheel group is set in the metering cavity, lubricating cavity in setting between two metering cavities, preceding lubricating cavity, middle lubricating cavity and rear lubricating cavity are connected to by oil line pipe, the front or rear end cap of the shell is equipped with display component, the waist wheel shaft composition for being located at the waist wheel of upper end in shell in two waist wheel groups is linked, the waist wheel shaft for being located at the waist wheel of lower end in shell in any one group of waist wheel group is equipped with first and gets rid of oily component, it is equipped with second in the preceding lubricating cavity and rear lubricating cavity and gets rid of oily component, using hydrostatics equilibrium principle will before, afterwards, middle lubricating cavity conducting, so that it is lubricated liquid level and keeps sustained height, in conjunction with each chamber it is indoor get rid of the comprehensive realization bearing lubrication of oily structure with Cleaning improves product service life.
Description
Technical field
The utility model relates to a kind of gas flowmeters, and in particular to a kind of double waist wheel gas flowmeters of comprehensive lubrication.
Background technique
Currently, the measurement chamber of the flowmeter of a pair of of the rotor used in the market mostly use greatly by shell and front and back end board group at
, when gas passes through the rotor assembly of flowmeter, it is peculiar volumetric flowmeter to be generated in gas Roots flow meter exit
Pulsating Flow, cause discharge capacity unbalanced, vibrate big in pipeline, influence entire flowmeter operation stability, make the metering of flowmeter
Precision reduces and shortens product service life.
Chinese patent CN202229792U discloses a kind of double waist wheel gas Roots flow meters, and which disclose set in it
There are two metering cavity 31/32, it is respectively equipped with one group of waist wheel 6,5 in described two metering cavities, two groups of waist wheels, which are staggered, to be set
It sets, two groups of waist wheels both ends are equipped with waist wheel shaft, and bearing, every waist wheel shaft and each bearing mistake are equipped on every waist wheel shaft
Cooperation is crossed, each bearing is fixedly mounted on shell, which realizes the cooperation of two groups of waist wheels by waist wheel shaft linkage, still
It has the following deficiencies, the structure can not the bearing to two pairs of waist wheel intermediate supports realize lubrication and cleaning.
Utility model content
For the technical deficiency more than overcoming, the utility model provides a kind of double waist wheel gas flowmeters of comprehensive lubrication.
A kind of double waist wheel gas flowmeters of comprehensive lubrication comprising shell, shell front and back is equipped with end plate and end cap, preceding
It is respectively formed preceding lubricating cavity and rear lubricating cavity between the end plate and end cap of rear end, is equipped with former and later two measurement chambers in the shell
Waist wheel group is arranged in body in the metering cavity, lubricating cavity, the preceding lubricating cavity, middle profit in setting between two metering cavities
Sliding chamber and rear lubricating cavity are connected to by oil line pipe, and the front or rear end cap of the shell is equipped with display component, described two
The waist wheel of waist wheel group is equipped with waist wheel shaft, and the waist wheel shaft is fixed in the metering cavity by bearing, two waist wheels
The waist wheel shaft composition for being located at the waist wheel of upper end in shell in group is linked, and lower end in shell is located in any one group of waist wheel group
The waist wheel shaft of waist wheel is equipped with first and gets rid of oily component.
Described first to get rid of oily component include the fixed disk being linked with waist wheel shaft, the oil return being symmetricly set in fixed disk
Piece, the oil return piece are rotatably arranged in the fixed disk, and the fixed disk is equipped with location hole, the side of the oil return piece
Equipped with locating piece, the locating piece constitutes limit cooperation with the location hole in the vertical waist wheel shaft setting of the oil return piece.
The oil return piece is in spindle, and the widest part is always positioned on the inside of bearing outside diameter in rotation.
It is equipped with second in the preceding lubricating cavity and rear lubricating cavity and gets rid of oily component.
Described second to get rid of oily component include the synchromesh gear being linked with waist wheel shaft, and two of any one group of waist wheel group
Synchromesh gear is engaged, and in any one group of waist wheel group be located at shell in lower end waist wheel waist wheel shaft be linked it is same
It walks gear and is equipped with oil return piece, the oil return piece is fixed on the synchromesh gear, and one end of the oil return piece is stretched out
The synchromesh gear, and can be immersed in the lubricating fluid of the preceding lubricating cavity or rear lubricating cavity.
Magnetic shaft coupling is equipped between the waist wheel shaft and front end end cap of the intracorporal waist wheel group of measurement chamber of front end.
The waist wheel group includes two waist wheels, and waist wheel is front/rear end mutually spiral shape at an acute angle and consecutive variations, and every
One cross sectional shape is identical cycloid shape.
The spiral angle of the waist wheel is not less than the scale division value of two pairs of waist wheels.
The section of the waist wheel is made of internal and external cycloids, is engaged between the two by left-and-right spiral.
The utility model has the beneficial effects that forward and backward, middle lubricating cavity is connected the equilibrium principle using hydrostatics, make
Its lubricate liquid level keep sustained height, in conjunction with each chamber it is indoor get rid of the comprehensive realization bearing lubrication of oily structure and cleaning, improve
Product service life.
Detailed description of the invention
Fig. 1 is the half-section diagram of the utility model.
Fig. 2 is the diagrammatic cross-section of the utility model.
Fig. 3 is the diagrammatic cross-section of another angle of the utility model.
Fig. 4 is the first cooperation schematic diagram for getting rid of oily component and magnetic coupling.
Fig. 5 is the first scheme of installation for getting rid of oily component.
Fig. 6 is the second structural schematic diagram for getting rid of oily component.
Fig. 7 is the cooperation schematic diagram of waist wheel group.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown, the utility model provides a kind of double waist wheel gas flowmeters of comprehensive lubrication comprising shell 2,
It is equipped with end plate 5 and end cap 6 before and after shell 2, is respectively formed preceding lubricating cavity between the end plate 5 and end cap 6 of front and back end
19 and rear lubricating cavity 21, former and later two metering cavities are equipped in the preceding shell 2, and the front side of front end-plate is preceding lubricating cavity, front end
The rear side of plate is preceding metering cavity, is then middle lubricating cavity between the rear wall of preceding metering cavity and the front side wall of rear metering cavity
20, then the rear wall of metering cavity is end plate, is then rear lubricating cavity between end plate and rear end cap.Forward and backward metering cavity
Oily component is got rid of in interior setting waist wheel group 1, the interior setting second of forward and backward lubricating cavity, and oily component, waist wheel group are got rid of in setting first in middle lubricating cavity
Waist wheel be equipped with waist wheel shaft, the both ends of the waist wheel shaft are then fixed by bearing, and measurement chamber intracorporal waist wheel group in front and back is handed over
Mistake setting, and setting display component 7 is covered in front and back ends, which is mechanical counter, by linking with waist wheel shaft
It realizes and counts, preceding lubricating cavity, rear lubricating cavity and middle lubricating cavity are independently arranged, and preceding lubricating cavity, rear lubricating cavity and middle profit
Sliding chamber is then connected to by oil line pipe, which can be built in shell, can also by external oil line pipe into
Row connection so that it is forward and backward, in the conducting of three independent lubricating chambers, while can realize unilateral oiling or function of draining the oil, and due to liquid
The static equilibrium principle of body can make the lubricating fluid liquid level 10 in three lubricating cavities flush.
Two waist wheel shafts being parallel to each other are respectively provided in metering cavity, two waist wheels of the waist wheel group are separately fixed at this
On two waist wheel shafts, and the setting angle of the two waist wheels is 90 degree, while two waist wheel shafts extend out to preceding lubrication
In chamber and middle lubricating cavity/middle lubricating cavity and rear lubricating cavity, and it is fixed with intermeshing synchromesh gear 9 in the end of waist wheel shaft,
The synchromesh gear 9 is located in preceding lubricating cavity and rear lubricating cavity, wherein inside housings positioned at upper end waist wheel shaft then with display group
Part connection, is wherein connected between the waist wheel shaft and display component by magnetic shaft coupling 8, and enclosure interior is located at the waist wheel of lower end
Oil return piece is set on the corresponding synchromesh gear of axis, which stretches out the extension of synchromesh gear, and can dip lubrication by a part
Oil level, in synchromesh gear rotation, which can be thrown to lubricating oil at bearing, be lubricated to bearing, synchronous gear
Wheel, oil return piece and waist wheel shaft constitute second and get rid of oily component, and also are provided with above-mentioned second in rear lubricating cavity and get rid of oily component, benefit
Oily component is got rid of with second to be lubricated bearing, part of the waist wheel shaft of front and back waist wheel group in middle lubricating cavity, be located at upper end
Waist wheel shaft then respectively by magnetic coupling 4 transmit torque, the magnetic coupling of any side is the ring for possessing eight pairs of magnetic poles
Shape magnet simultaneously because it uses eight pairs of magnetic poles, therefore front and back waist wheel group can be indexed with 45 degree of angles, and indexing accuracy
Height, and it is located at the waist wheel shaft of lower end, it can be positioned at the intracorporal waist wheel shaft of preceding measurement chamber, be also possible to be located in rear metering cavity
Waist wheel shaft, thereon be fixedly installed fixed disk 13, rotatable oil return piece 12 is set in fixed disk, using rotatable oil return
Piece design, can be loaded into during installation in the mounting hole to match with bearing diameter, and fixed disk and oil return is on chip
After entering in lubricating cavity, oil return piece is stirred by the mounting hole of the other end, and locating piece is arranged in one end of oil return piece,
And in fixed disk be equipped with location hole, oil return piece be in vertical waist wheel shaft be arranged when, the locating piece 15 just with location hole 18
Xiang Ka, to guarantee the phenomenon that oil return piece is not in skidding in rotation, while it operates more convenient, and installation is also just
Victory, fixed disk and oil return piece constitute first and get rid of oily component.
And waist wheel group is then made of two waist wheels 14, waist wheel is front/rear end mutually spiral shape at an acute angle and consecutive variations,
And each cross sectional shape is identical cycloid shape, and it is uniform when fluid is to the active force of waist wheel in the rotation of waist wheel, it drives
Kinetic moment will become steadily, and movement becomes stable, and greatly reduce fluctuating range, so that vibration and noise is effectively reduced,
I.e. waist wheel is helical structure, and spiral angle should be not less than two pairs of waist wheel scale division values.Waist wheel is greater than two pairs using spiral angle
45 ° of scale division value of spiral form design between waist wheel, is thoroughly eliminated because of Pulsating Flow caused by volumetric flowmeter.
And waist wheel is driven by synchromesh gear and is rotated, and the section of waist wheel is made of internal and external cycloids, is logical between two waist wheels
Left-and-right spiral engagement is crossed, realizes that any position only has at one and sealingly engages.
In order to which oily component is got rid of in installation first in middle lubricating cavity, need special installation method that it to be installed, therefore
The invention also discloses a kind of installation method of middle lubricant reservoir based on above-mentioned gas flowmeter,
Itself the following steps are included:
One, fixed disk is fixed on waist wheel shaft by screw/bolt, fixed disk is first fixedly connected with waist wheel shaft, is made solid
Price fixing can be rotated with waist wheel shaft and be rotated, simultaneously because waist wheel shaft needs to be mounted on by bearing on the side wall of metering cavity, therefore
The size of mounting hole on the side wall is adapted with the outer diameter of bearing；
Two, then oil return piece is fixed by screws in fixed disk, and makes the oil return piece that there is certain rotation
Angle；
Three, after installing in upper fixed disk, first by oil return piece rotational angle, so that the entirety of two oil return pieces is respectively positioned on
On the inside of the outer diameter of fixed disk, and the oil return piece is in fusiform, and when entire oil return piece is located in fixed disk, most wide section 17 most
Outside will enable on the inside of the outer diameter of fixed disk, or 16 on the inside of the outer diameter of bearing and install the fixed disk of oil return piece from peace
Lubricant reservoir in being fitted at dress hole；
Four, fixed disk is mounted in middle lubricating cavity by waist wheel shaft, and is fixed on the side of middle lubricant reservoir by bearing
On wall, the fixed disk is located in middle lubricating cavity at this time, and can rotate in middle lubricating cavity；
Five, by the mounting hole on another side wall of middle lubricant reservoir, oil return piece is stirred, and is dialed to vertical
Waist wheel shaft direction, so that fixed disk is stretched out in oil return piece one end, and makes locating piece and location hole constitute limit cooperation, i.e., from another
Oil return piece is operated at the mounting hole of side, script is collapsed into the oil return piece in entire fixed disk, is laterally rotated, and most
Make the setting of oil return piece vertical waist wheel shaft direction eventually, and at this point, the locating piece of oil return piece can be stuck in the positioning hole of fixed disk, make
Oil return piece and fixed disk constitute an entirety, in rotation, be able to drive lubricating oil, and intermediate bearing is lubricated and
Maintenance；
Six, the intracorporal waist wheel shaft of another measurement chamber is passed through into the installation on another side wall of bearing and middle lubricant reservoir
Hole is fixedly connected, and at this time seals two mounting holes of middle lubricant reservoir, so that middle lubricant reservoir becomes an independent cavity,
And finally magnetic coupling installation can be carried out to the waist wheel shaft for being located at upper end, torque is completed by magnetic coupling
Transmitting.
Embodiment is not construed as limitations of the present invention, any spiritual improvements introduced based on the utility model,
It should all be within the protection scope of the utility model.
Claims (9)
1. a kind of double waist wheel gas flowmeters of comprehensive lubrication, it is characterised in that: it includes shell, is equipped with end plate before and after shell
With end cap, it is respectively formed preceding lubricating cavity and rear lubricating cavity between the end plate and end cap of front and back end, is equipped with front and back two in the shell
Waist wheel group is arranged in a metering cavity in the metering cavity, and lubricating cavity in setting, lubricates before described between two metering cavities
Chamber, middle lubricating cavity and rear lubricating cavity are connected to by oil line pipe, and the front or rear end cap of the shell is equipped with display component, institute
The waist wheel for stating two waist wheel groups is equipped with waist wheel shaft, and the waist wheel shaft is fixed in the metering cavity by bearing, and two
The waist wheel shaft composition for being located at the waist wheel of upper end in shell in a waist wheel group is linked, and is located in shell in any one group of waist wheel group
The waist wheel shaft of the waist wheel of lower end is equipped with first and gets rid of oily component.
2. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 1, which is characterized in that described first gets rid of
Oily component includes the fixed disk being linked with waist wheel shaft, and the oil return piece being symmetricly set in fixed disk, the oil return piece can turn
In the dynamic setting fixed disk, and the fixed disk is equipped with location hole, and the side of the oil return piece is equipped with locating piece, described fixed
Position part constitutes limit cooperation with the location hole in the vertical waist wheel shaft setting of the oil return piece.
3. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 2, which is characterized in that the oil return piece
In spindle, and the widest part is always positioned on the inside of bearing outside diameter in rotation.
4. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 1, which is characterized in that in the preceding profit
It is equipped with second in sliding chamber and rear lubricating cavity and gets rid of oily component.
5. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 4, which is characterized in that described second gets rid of
Oily component includes the synchromesh gear being linked with waist wheel shaft, and two synchromesh gears of any one group of waist wheel group are engaged,
And the synchromesh gear being linked with the waist wheel shaft for being located at the waist wheel of lower end in shell in any one group of waist wheel group is equipped with oil return
Piece, the oil return piece are fixed on the synchromesh gear, and the synchromesh gear is stretched out in one end of the oil return piece, and can
It is immersed in the lubricating fluid of the preceding lubricating cavity or rear lubricating cavity.
6. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 1, which is characterized in that positioned at front end
Magnetic shaft coupling is equipped between the waist wheel shaft and front end end cap of the intracorporal waist wheel group of measurement chamber.
7. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 1, which is characterized in that the waist wheel group
Including two waist wheels, waist wheel is front/rear end mutually spiral shape at an acute angle and consecutive variations, and each cross sectional shape is phase
Same cycloid shape.
8. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 7, which is characterized in that the waist wheel
Spiral angle is not less than the scale division value of two pairs of waist wheels.
9. a kind of double waist wheel gas flowmeters of comprehensive lubrication according to claim 7 or 8, which is characterized in that the waist
The section of wheel is made of internal and external cycloids, is engaged between the two by left-and-right spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820798086.0U CN208269989U (en) | 2018-05-28 | 2018-05-28 | A kind of double waist wheel gas flowmeters of comprehensive lubrication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820798086.0U CN208269989U (en) | 2018-05-28 | 2018-05-28 | A kind of double waist wheel gas flowmeters of comprehensive lubrication |
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| CN208269989U true CN208269989U (en) | 2018-12-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759954A (en) * | 2018-05-28 | 2018-11-06 | 天信仪表集团有限公司 | A kind of double waist wheel gas flowmeters and installation method |
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2018
- 2018-05-28 CN CN201820798086.0U patent/CN208269989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759954A (en) * | 2018-05-28 | 2018-11-06 | 天信仪表集团有限公司 | A kind of double waist wheel gas flowmeters and installation method |
| CN108759954B (en) * | 2018-05-28 | 2024-03-22 | 天信仪表集团有限公司 | Double-waist-wheel gas flowmeter and mounting method thereof |
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