CN110186529A - Gas meter knuckle drive device - Google Patents
Gas meter knuckle drive device Download PDFInfo
- Publication number
- CN110186529A CN110186529A CN201910528343.8A CN201910528343A CN110186529A CN 110186529 A CN110186529 A CN 110186529A CN 201910528343 A CN201910528343 A CN 201910528343A CN 110186529 A CN110186529 A CN 110186529A
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- Prior art keywords
- intermediate gear
- gas meter
- connecting column
- drive device
- column
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- 230000008878 coupling Effects 0.000 claims abstract description 26
- 238000010168 coupling process Methods 0.000 claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 claims abstract description 26
- 230000008859 change Effects 0.000 claims abstract description 18
- 230000003044 adaptive effect Effects 0.000 claims abstract description 4
- 230000021615 conjugation Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 3
- 230000036413 temperature sense Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 22
- 229920003266 Leaf® Polymers 0.000 description 30
- 239000003034 coal gas Substances 0.000 description 19
- 230000007246 mechanism Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 210000000981 epithelium Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 201000009482 yaws Diseases 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
- G01F15/043—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means
- G01F15/046—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means involving digital counting
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of gas meter knuckle drive devices, solve the problems, such as to be provided with that transmission is easily led to after temperature compensation means is unsmooth and can generate new error on existing gas meter, a kind of technical measures taken: gas meter knuckle drive device, including intermediate gear, intermediate gear is rotatably arranged on the core body of gas meter, intermediate gear and counting device driving coupling, connecting column is prejudicially provided on intermediate gear, connecting column passes through the upper end side driving coupling of connecting rod and toggle, it is characterized in that, connecting column is movably arranged as on intermediate gear, temperature sensing device is used to incude environment temperature and carries out adaptive change to radial position of the connecting column on intermediate gear, so that axis of the high temperature lower link column far from intermediate gear, axis of the low temperature lower link column close to intermediate gear.
Description
Technical field
The present invention relates to a kind of gas meters that the flow for coal gas is measured, more particularly to the reality on gas meter
The device being driven between existing toggle and intermediate gear.
Background technique
For gas meter for measuring to the flow of coal gas, the main structure of gas meter is core body, is set in core body
There are two spaced-apart distributor chambers, valve is provided in distributor chamber, valve is connected with the indoor toggle of distribution is extend into
It connects.Gas meter is when to gas measurement, and after coal gas enters in core body from air inlet, coal gas pushes valve towards emptying distribution
The direction of room moves, and coal gas exits into user pipe from the gas outlet communicated with distributor chamber.Coal gas is entering distributor chamber
When interior, valve movement will push, valve can be transferred in another distributor chamber by the associated toggle connect and transmission mechanism
Valve on, so that another is distributed the movement that indoor valve captures distributor chamber, two valves act respectively, and complete two
The alternating inlet, outlet of distributor chamber.Counting device and transmission mechanism driving coupling, under the promotion of transmission mechanism, counting device energy
It is enough that the flow of coal gas is measured.Since coal gas is to be flowed with gas form, and the volume of gas is by the shadow of environment temperature
It rings big.In the application region to make a clear distinction between the four seasons, in actual application, and can not in order to adapt to the variation of environment temperature and to coal
Gas meter is replaced, and therefore, existing gas meter is inaccurate to the metering of gas flow.
To compensate to above-mentioned this error, a kind of temperature is disclosed in Chinese patent (publication number: CN2748876Y)
Degree compensation gas meter, it is intended to it is mutually unified to solve the problems, such as that existing gas meter can not be such that actual metered measures with standard environment.The temperature
Degree compensation gas meter includes big pull rod, lower link bar, vertical shaft, epithelium, and big pull rod is connect with vertical shaft, and vertical shaft connects through folded plate and epithelium
Connect, the big pull rod bracket made of attachment screw connection thrermostatic bimetal-plate on big pull rod, the big pull rod bracket through adjusting rod with it is small
Pull rod pin connection.The present invention solves gas meter big due to the use of temperature compensation means, that is, big pull rod bracket and adjusting rod
Measurement error problem in compression ring border guarantees the interests of coal gas both sides of supply and demand.
In the gas meter, directly bimetal leaf is arranged on lever-type transmission mechanism, to change transmission mechanism
It is driven track, carrys out influence of the adaptive temperature variation to coal gas volume.And this lever-type transmission mechanism is to the position of transmission parts
It sets and requires relatively high, otherwise can cause the clamping stagnation of transmission, and then influence whether the accuracy that gas meter measures medium gas.Due to
The variation of temperature can cause the variation of bimetal leaf radian, and bimetal leaf can change the spatial position of big pull rod bracket, this makes
The transmission smoothness that transmission device is measured on this gas meter is poor, on the one hand influences whether the smoothness of gas meter air inlet, another
Aspect also can make gas meter generate new measurement error.
Summary of the invention
The technical problem to be solved in the invention is: providing a kind of gas meter knuckle drive device, the transmission structures
Simply, convenient for gas meter can adapt to variation of ambient temperature and accurately be measured to gas flow.
To solve the technical problem, the technical solution used in the present invention: a kind of gas meter knuckle drive device, including
Intermediate gear, intermediate gear are rotatably arranged on the core body of gas meter, intermediate gear and counting device driving coupling, in
Between connecting column is prejudicially provided on gear, connecting column passes through the upper end side driving coupling of connecting rod and toggle, which is characterized in that connection
It connects column to be movably arranged as on intermediate gear, temperature sensing device is for incuding environment temperature and to connecting column in centre
Radial position on gear carries out adaptive change, so that axis of the high temperature lower link column far from intermediate gear, low temperature lower link
Axis of the column close to intermediate gear.
The temperature sensing device can be following bimetal leafs, be also possible to the temperature sensor of electronic type.Temperature
Degree sensor can feed back to the environment temperature sensed controller, controller meeting instruction step motor work, and stepper motor leads to
Driving coupling driving structure is crossed to promote connecting column to make corresponding movement.Only inconvenient, work is arranged in the temperature sensor of electronic type
The component to match therewith when making is relatively more, and inconvenience is also evident from actual application.And double-metal sheet type
After environment temperature changes, the spatial form of itself can change temperature sensing device, so that power source pair can be used as
Radial position of the connecting column on intermediate gear is changed.In the case where same charge volume, intermediate gear can be changed
It is driven angular speed.The gear teeth and counting device driving coupling on intermediate gear are embodied when intermediate gear angular speed changes
Can also change in the speed being driven to counting device, so as to because caused by temperature change measurement error repair
Positive compensation.
Further, intermediate gear is split type structure, including being coaxially disposed pallet and shrouding disc together, connecting column
Outer end reaches the upside of shrouding disc, and the interior end side of connecting column is extend into the cavity between pallet and shrouding disc, in connection on shrouding disc
The sliding slot for connecting column sliding is provided at the position of column.This makes connection stability of the connecting column on intermediate gear good, just
It changes in position of the connecting column on intermediate gear, connecting column can steadily receive the motive force of toggle.
Further, pallet is equipped with pit and to be formed the cavity between pallet and shrouding disc, sliding slot setting
On shrouding disc.The inner end of connecting column can be steadily plugged into the cavity, and pallet can provide stable support for connecting column
Effect.
Further, coupling structure is equipped on the bottom surface of pit, the inner end of fixed body is connected and fixed in coupling structure,
The outer end of fixed body reaches the upside of shrouding disc, and temperature sensing device is connected in fixed column.Fixed column is on intermediate gear
Positional stability is good, provides good position supporting role convenient for fixed column for temperature sensing device.
Further, temperature sensing device includes bimetal leaf, and one end of bimetal leaf is fixed on intermediate gear, another
End and connecting column driving coupling.By setting bimetallic sheet structure as temperature sensing device, structure is simple, compact, convenient for setting
It sets and assembles, the position change that Convenient antithetical couplet connects column is driven.
Further, fork plate is rotatably arranged on intermediate gear, and connecting column is plugged on gap in the prong in fork plate,
The other end driving coupling of fork plate and bimetal leaf.The biography between temperature sensing device and connecting column is realized by the way that fork plate is arranged
Dynamic connection, structure is simple, and convenient for bimetal leaf, to connecting column, the position on intermediate gear is changed.
Further, bimetal leaf is socketed in the periphery of bimetal leaf in winding arrangement, the circle portion of pulling sleeve, bimetal leaf
The other end is connected on pulling sleeve, the conjugation handle on pulling sleeve and fork plate driving coupling.By setting pulling sleeve come realize bimetal leaf with
Transmission between connecting column, so that structural compactness is good, the transmission convenient for bimetal leaf to connecting column.
Further, connection holes being equipped in the outer end of conjugation handle, the reversed column in fork plate is plugged in connection holes with gap,
From the driving coupling realized between fork plate and pulling sleeve well.
Further, the connection holes are kidney-shaped, are equipped in the one side wall of connection holes width direction towards in connection holes
Protruding portion outstanding, the protruding parts are at the medium position of connection holes length direction.By setting protruding portion connection holes point
At two parts for matching with reversed column, position of the reversed column in connection holes in transmission process is become
Change, in completing transmission process, and the angle requirement of corresponding transmission parts can be adapted to very well, is conducive to the smoothness of transmission.
Further, the one end of fork plate is arranged in prong and reversed column, and the one end of fork plate is close to bimetal leaf, in
Between gear be equipped with limit body, limit body is equipped with the limited mouth towards fork plate, and the other end of fork plate is plugged on limit with gap
In mouthful.The medium position of fork plate is articulated on intermediate gear, and fork plate can be well adapted for bimetal leaf because of variation of ambient temperature
And bring change in shape, and fork plate can be such that connecting column is stably maintained on intermediate gear at corresponding position.
Therefore, beneficial effects of the present invention: this knuckle drive device on intermediate gear by being actively provided with connection
Column, the connecting column can be well adapted for the change that variation of ambient temperature occurs for temperature sensing device, be existed by connecting column
Therefore the position change of intermediate gear radially changes the transmission speed to counting device to adapt to the variation of environment temperature
Degree accurately reacts the actual amount of coal gas so that counting device can be well adapted for the variation of environment temperature.Pass through
Connecting column is movably arranged as on intermediate gear, and connecting column can receive the driving of temperature sensing device and in intermediate gear
On radial position change, the structure of this knuckle drive device is simple, and compactedness is good, guarantee gas meter it is accurate
On the basis of, it can satisfy the transmission demand of knuckle drive device itself, do not interfere with the normal work demand of gas meter.
Detailed description of the invention
Fig. 1 is the structure chart of the gas meter with this knuckle drive device.
Fig. 2 is the dispersed structure figure of this knuckle drive device.
Fig. 3 is the structure chart that this knuckle drive device is linked together.
Fig. 4 is the amplification assumption diagram of pulling sleeve.
Fig. 5 is the amplification assumption diagram of shrouding disc.
Fig. 6 is the amplification assumption diagram of fork plate.
In figure, 1, core body；2, counting device；3, intermediate gear；31, shrouding disc；311, sliding slot；312, limit body；313,
Limited mouth；32, pallet；321, pit；322, coupling structure；4, connecting rod；5, yaw；6, distributor chamber；7, toggle；8, pulling sleeve；81,
Circle portion；82, conjugation handle；821, connection holes；822, protruding portion；9, bimetal leaf；10, fixed body；11, connecting column；12, fork plate；
121, reversed column；122, prong.
Specific embodiment
In conjunction with attached drawing, the structure of gas meter includes core body 1, and there are two the distributor chambers separated for setting in core body 1
6, a piece of valve is provided in each distributor chamber 6.Two are respectively equipped in the upper end of core body 1 to communicate respectively with distributor chamber 6
Air inlet, the upper end of core body 1 is provided with rotary valve or two slip lids, rotary valve or slip lid are for alternately covering or disengaging two
A air inlet.
The structure of this gas meter knuckle drive device includes intermediate gear 3, and intermediate gear 3 is rotatably arranged at gas meter
On core body 1, intermediate gear 3 is mutually driven with rotary valve or slip lid, and rotary valve or slip lid are acted.Two toggles 7 are respectively protruding into
Into two distributor chambers 6, inner end and the valve in distributor chamber 6 of toggle 7 are connected, and the outer end of toggle 7 is equipped with yaw 5.
Connecting column 11 is prejudicially provided on intermediate gear 3, two yaws 5 pass through two connecting rods 4 and 11 movable drive of connecting column
Connection.
When coal gas is entered in distributor chamber 6 from air inlet, coal gas will push valve movement, and valve can pass through toggle 7, yaw
5 and connecting rod 4 and drive rotary valve or slip lid to act, when so that coal gas being entered in escape pipe from gas meter distributor chamber 6, rotary valve or
Slip lid covers in air inlet corresponding with the distributor chamber 6, and the enterprising port of another distributor chamber 6 is opened.Gas meter is made with coal gas
For power source, the metering to gas flow is completed during realizing flow of gas.The dress that gas flow is measured
It is set to counting device 2, counting device 2 and 3 driving coupling of intermediate gear, dynamic receiver member specifically is set in counting device 2,
Power receiver member is equipped with several dentation convex bodys, which engages with gear teeth transmission set on intermediate gear 3, and makes
Intermediate gear 3 will drive counting device 2 at work and measure to the flow of coal gas.
Intermediate gear 3 is split type structure, including pallet 32 and shrouding disc 31, the two through hole, rod structure coaxially couple
Together.Pallet 32 is located at the downside of shrouding disc 31, and the gear teeth on intermediate gear 3 are formed on pallet 32.The axis position of pallet 32
Place is set integrally formed with rotation axis, rotation axis is rotationally connected on core body 1.Pallet 32 is towards shape on an end face of shrouding disc 31
At there is pit 321, the end face of pallet 32 and the back side of shrouding disc 31 fit, which makes in pallet 32 and shrouding disc 31
Between be formed with cavity.
The sliding slot 311 communicated with aforementioned cavity is equipped on shrouding disc 31, connecting column 11 is movably arranged as in sliding slot 311,
It is equipped with the card slot of circular ring shape on the outer peripheral surface of connecting column 11, is plugged in the card slot to the slit space of sliding slot 311.Connecting column
11 outer end reaches the upside of shrouding disc 31, and the inner end of connecting column 11 is extend into the cavity between pallet 32 and shrouding disc 31.
Shrouding disc 31 is arranged in radially in sliding slot 311, connecting column 11 can it is free to slide in sliding slot 311 and change on shrouding disc 31
Radial position.
On the bottom surface of pit 321 integrally formed with longitudinal section be "convex" shaped coupling structure 322, fixed body 10 it is interior
End is equipped with the concave structure to match with the coupling structure 322, and the inner end of fixed body 10 is joined by way of welding or being bonded
It connects and is fixed in coupling structure 322.Bimetal leaf 9 is equipped on the upper surface of shrouding disc 31, bimetal leaf 9 is that winding is arranged to disk
Shape.The outer end of fixed body 10 reaches the upside of shrouding disc 31, and the outer end of fixed body 10 is equipped with socket, and bimetal leaf 9 is socketed in
The inner end of the periphery of fixed body 10, bimetal leaf 9 is plugged in socket, and fixed body 10 is stably coupled to bimetal leaf 9
On shrouding disc 31.The outer end of bimetal leaf 9 and 11 driving coupling of connecting column, when the ambient temperature changes, bimetal leaf 9 itself
It can be deformed because of the variation of temperature, so that bimetal leaf 9 generates driving force, to drive connecting column 11 in shrouding disc 31
Sliding in upper hopper chute 311, and then radial position of the connecting column 11 on shrouding disc 31 can be changed.As environment temperature becomes from high to low
Change, shrouding disc 31 radially, bimetal leaf 9 can drive 11 ecto-entad of connecting column to slide in sliding slot 311 by deformation.
For connecting column 11 after radial position changes on shrouding disc 31, valve same stroke in distributor chamber 6 can make intermediate gear 3
Angular speed change, and the stroke of valve has reacted the charge volume of coal gas, and the change of this angular speed can bring centre
The variation of 3 linear velocity of gear, so that the operating rate of counting device 2 brings corresponding variation.Under high temperature environment, equally
When the coal gas of volume flows through gas meter, the counting of gas meter can be more small in size than actual；At low ambient temperatures, the coal of same volume
When gas flows through gas meter, the counting of gas meter is big.The setting of this structure enables the metering of gas meter truly to react very much
The practical gas consumption of user, can effectively compensate for the measurement error of bring gas flow due to variation of ambient temperature.
Driving coupling is realized by pulling sleeve 8 and fork plate 12 between the outer end and connecting column 11 of bimetal leaf 9, in fork plate 12
By being pivotally arranged on shrouding disc 31, pulling sleeve 8 and the outer end of bimetal leaf 9 are connected for portion position.In fork plate 12
One end is formed with prong 122 and reversed column 121, and annular groove, 122 activity of prong are formed on the outer peripheral surface of the outer end of connecting column 11
Ground is plugged in the annular groove, and connecting column 11 is slidably disposed in prong 122.Pulling sleeve 8 has the circle portion 81 being linked together and connection
Connect handle 82, wherein circle portion 81 is socketed in the periphery of bimetal leaf 9, and socket is formed in circle portion 81, and the outer end of bimetal leaf 9 is inserted
It connects in socket.Connection holes 821 are equipped in the outer end of conjugation handle 82, the reversed column 121 in fork plate 12 is plugged on connection with gap
In hole 821.
To guarantee positional stability of the bimetal leaf 9 on shrouding disc 31, formed on the outer peripheral surface in circle portion 81 outstanding
Export-oriented bulge loop, the outside on shrouding disc 31 in circle portion 81 are equipped with three card columns, and card column and shrouding disc 31 are integrally formed, export-oriented bulge loop card
It connects in the bayonet in card column.Integrally formed with limit body 312 on shrouding disc 31, limit body 312 is located at the other end of fork plate 12
At position, limit body 312 is equipped with the limited mouth 313 towards fork plate 12, and the other end of fork plate 12 is plugged on limited mouth with gap
In 313.Under the restriction effect of limit body 312, good operating stability of the fork plate 12 on shrouding disc 31.
Connection holes 821 on conjugation handle 82 are kidney-shaped, are equipped in the one side wall of 821 width direction of connection holes towards connection
Protruding portion 822 outstanding in hole 821, which is located at the medium position of 821 length direction of connection holes, thus joining
Two end sides for connecing hole 821 form two cooperation positions for matching with reversed column 121, to adapt to 82 He of conjugation handle in transmission
The status requirement of fork plate 12 between the two.
Claims (10)
1. a kind of gas meter knuckle drive device, including intermediate gear, intermediate gear are rotatably arranged at the core body of gas meter
On, intermediate gear and counting device driving coupling are prejudicially provided with connecting column on intermediate gear, connecting column by connecting rod with
The upper end side driving coupling of toggle, which is characterized in that connecting column is movably arranged as on intermediate gear, and temperature sensing device is used for
Environment temperature is incuded and adaptive change is carried out to radial position of the connecting column on intermediate gear, so that the high temperature second line of a couplet
Connect axis of the column far from intermediate gear, axis of the low temperature lower link column close to intermediate gear.
2. gas meter knuckle drive device according to claim 1, which is characterized in that intermediate gear is split type structure,
Including being coaxially disposed pallet and shrouding disc together, the outer end of connecting column reaches the upside of shrouding disc, and the interior end side of connecting column is stretched
Enter into the cavity between pallet and shrouding disc, is provided with the sliding slot for connecting column sliding on shrouding disc at the position of connecting column.
3. gas meter knuckle drive device according to claim 2, which is characterized in that pallet is equipped with pit and makes
The cavity is formed between pallet and shrouding disc, sliding slot is arranged on shrouding disc.
4. gas meter knuckle drive device according to claim 3, which is characterized in that be equipped with connection on the bottom surface of pit
The inner end of structure, fixed body is connected and fixed in coupling structure, and the outer end of fixed body reaches the upside of shrouding disc, temperature sense dress
It sets and is connected in fixed column.
5. gas meter knuckle drive device according to claim 1, which is characterized in that temperature sensing device includes bimetallic
One end of piece, bimetal leaf is fixed on intermediate gear, the other end and connecting column driving coupling.
6. gas meter knuckle drive device according to claim 5, which is characterized in that fork plate is rotatably arranged at center tooth
On wheel, connecting column is plugged on gap in the prong in fork plate, the other end driving coupling of fork plate and bimetal leaf.
7. gas meter knuckle drive device according to claim 6, which is characterized in that bimetal leaf is dialled in winding arrangement
The circle portion of set is socketed in the periphery of bimetal leaf, and the other end of bimetal leaf is connected on pulling sleeve, conjugation handle and fork on pulling sleeve
Plate driving coupling.
8. gas meter knuckle drive device according to claim 7, which is characterized in that be equipped with connection in the outer end of conjugation handle
Hole is connect, the reversed column in fork plate is plugged in connection holes with gap.
9. gas meter knuckle drive device according to claim 8, which is characterized in that the connection holes are kidney-shaped, are being joined
The one side wall for connecing hole width direction is equipped with towards protruding portion outstanding in connection holes, and the protruding parts are in connection holes length direction
Medium position at.
10. gas meter knuckle drive device according to claim 8, which is characterized in that prong and reversed column are arranged in fork plate
One end, the one end of fork plate close to bimetal leaf, on intermediate gear be equipped with limit body, limit body be equipped with towards fork
The other end of the limited mouth of plate, fork plate is plugged in limited mouth with gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528343.8A CN110186529A (en) | 2019-06-18 | 2019-06-18 | Gas meter knuckle drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910528343.8A CN110186529A (en) | 2019-06-18 | 2019-06-18 | Gas meter knuckle drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110186529A true CN110186529A (en) | 2019-08-30 |
Family
ID=67722306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910528343.8A Pending CN110186529A (en) | 2019-06-18 | 2019-06-18 | Gas meter knuckle drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110186529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174149A (en) * | 2019-06-18 | 2019-08-27 | 台州杜瑞仪表有限公司 | Gas meter temperature compensation means |
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| CN110174149A (en) * | 2019-06-18 | 2019-08-27 | 台州杜瑞仪表有限公司 | Gas meter temperature compensation means |
| CN110174149B (en) * | 2019-06-18 | 2024-07-09 | 台州杜瑞仪表有限公司 | Metering temperature compensating device for gas meter |
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