CN207675242U - A kind of gas roots flowmeter - Google Patents
A kind of gas roots flowmeter Download PDFInfo
- Publication number
- CN207675242U CN207675242U CN201721607910.1U CN201721607910U CN207675242U CN 207675242 U CN207675242 U CN 207675242U CN 201721607910 U CN201721607910 U CN 201721607910U CN 207675242 U CN207675242 U CN 207675242U
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- bearing
- shaft
- disk spring
- waist wheel
- spring washer
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Abstract
The utility model discloses a kind of gas roots flowmeter, a pair of of rotor including cavity and equipped with waist wheel, two opposite open ends of cavity are detachably provided with drive end bearing bracket and rear end cap respectively, waist wheel is within the cavity, and shaft wherein one end of two rotors stretches out drive end bearing bracket and is respectively equipped with intermeshing synchromesh gear in the external part of two shafts；Bearing is embedded in drive end bearing bracket and rear end cap respectively, the both ends of every shaft, which are each passed through after bearing, to be installed in rotation on respective end and covers, part of the shaft between waist wheel end face and the bearing face at the end is also cased with several disk spring washers to being extruded, disk spring washer is in cone tube shape, connect per two large end faces in a pair of disk spring washer, two small end faces in adjacent two pairs of disk spring washers connect, and bearing is equipped with the fastening nut being screwed in shaft away from one end of disk spring washer.The gas roots flowmeter efficiently solves existing gas roots flowmeter and is easy stuck technical problem.
Description
Technical field
The utility model belongs to flowmeter technology field more particularly to a kind of rotz flowmeter measuring gas flow.
Background technology
Gas roots flowmeter is based on the high-precision by accomplished continuously or intermittently being measured air in pipeline rate-of flow
Instrument is measured, it has the characteristics that precision height, good reliability, light-weight, long lifespan, easy to install and use, is volumetric flowmeter
Typical case, general configuration is that a pair of mutually matched waist wheel is equipped in the cavity of a measuring room.Existing gas waist wheel
In flowmeter waist wheel rotation when be easy it is stuck, to find out its cause, mainly due in fluid media (medium) impurity interference or waist wheel
With measuring room peripheral clearance or end clearance are overproof causes；And existing flowmeter measurement unit is difficult to later using permanent
The end cap up and down for removing its measuring room causes to safeguard and replaces difficulty.
Utility model content
The purpose of this utility model is to provide a kind of gas roots flowmeter, which efficiently solves
Existing gas roots flowmeter is easy stuck technical problem.
The technical solution of the utility model is as follows：
A kind of gas roots flowmeter, including cavity and a pair of of rotor equipped with waist wheel, the two opposite of the cavity open
Mouth end is detachably provided with drive end bearing bracket and rear end cap respectively, and the waist wheel is within the cavity, shaft wherein one end of two rotors
It stretches out the drive end bearing bracket and is respectively equipped with intermeshing synchromesh gear in the external part of two shafts；The drive end bearing bracket and rear end
Respectively embedded with bearing in lid, the both ends of every shaft, which are each passed through after the bearing, to be installed in rotation on respective end and covers,
Wherein, part of the shaft between waist wheel end face and the bearing face at the end is also cased with several to being extruded
Disk spring washer, the disk spring washer are in cone tube shape, are connected per two large end faces in a pair of disk spring washer,
Two small end faces in adjacent two pairs of disk spring washers connect, and the bearing is equipped with away from one end of disk spring washer and is screwed in
Fastening nut in shaft, the fastening nut connect with bearing inner race end face and can be by turning come so that bearing compression dish
Spring washer or release disk spring washer.
Further, it is located at the inner ring of the bearing of rear end cap equipped with the end ring in spherical shell shape, the end of the shaft
Portion is located at the groove center of end ring, and screw is along shaft axially across the end for being screwed into shaft after end ring.
Further, the edge by the maximum gauge both ends of the waist wheel is provided with twice groove；The groove along
The axial setting of waist wheel.
Further, opening screw hole is additionally provided on the drive end bearing bracket, the opening screw hole is through drive end bearing bracket and upright front
The covered cavity hatch end surface portion of lid.
Further, the first sealing ring, the cavity hatch end are equipped between the drive end bearing bracket and cavity hatch end surfaces
Surface is equipped with the seal groove for accommodating the second sealing ring.
Further, the shaft includes first rotating shaft and the second shaft, and first rotating shaft and the second shaft difference are coaxially
It is embedded in the central shaft hole of waist wheel.
The beneficial effects of the utility model：The utility model is front loaded several to butterfly spring gasket in waist wheel rotor,
The large end face of disc-shaped spring gasket splices dress, is then placed in glossy bearing, and nut is tightened, fills bearing plate, passes through nut
It is elastic adjust the decrement of butterfly spring gasket, adjust between the corresponding end cap end face on cavity and the axial direction of waist wheel end face
Gap reaches the flexible purpose of rotation.Gap between the edge and cavity inner wall at existing flowmeter waist wheel maximum gauge end
Minimum, impurity is stuck with being easiest to cause during air motion when waist wheel rotates, and the utility model is in gas flow
Impurity at minimum clearance can enter groove, flow out flowmeter by groove, it is stuck to flowmeter to significantly reduce impurity
It influences, while both having improved the stability of flowmeter metering.Also, waist wheel rotor rear end bearing is by bearing washer come adjustment axis
Dynamic flexibility is forwarded, opening screw hole can be smoothly rapidly so that drive end bearing bracket be detached with cavity end face in dismounting.
Description of the drawings
Fig. 1 is the utility model section view.
Fig. 2 is the explosive view of the utility model.
Fig. 3 is enlarged view at I in Fig. 1.
Fig. 4 is enlarged view at II in Fig. 1.
Fig. 5 is a pair of of disk spring washer setting structure schematic diagram.
Fig. 6 is that schematic diagram is arranged in waist wheel groove.
Fig. 7 is the end view at drive end bearing bracket.
Specific implementation mode
Illustrate that the embodiment of the utility model, those skilled in the art can be by these by particular specific embodiment below
Content disclosed by specification understands other advantages and effect of the utility model easily.
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in Fig. 1-5, a kind of gas roots flowmeter, including cavity 1 and a pair of of rotor equipped with waist wheel 2, the chamber
Two opposite open ends of body 1 are detachably provided with drive end bearing bracket 3 and rear end cap 14 respectively, and the waist wheel 2 is located in cavity 1,
Wherein one end of shaft 9 of two rotors is stretched out the drive end bearing bracket 3 and is respectively equipped in the external part of two shafts 9 intermeshing same
Gear 4 is walked, is pressed with by nut 16 on synchromesh gear 4 and gets rid of spindle 15, for getting rid of oil；In the drive end bearing bracket 3 and rear end cap 14 respectively
Embedded with bearing (being located at the first bearing 7 of front end, positioned at the second bearing 10 of rear end), the both ends of every shaft 9 are each passed through institute
It states and is installed in rotation on respective end after bearing and covers.
Wherein, part of the shaft 9 between 2 end face of waist wheel and 7 end face of first bearing at the end is also cased with several right
The disk spring washer 8 being extruded, the disk spring washer 8 are in cone tube shape, as shown in figure 5, per a pair of disk spring pad
Two large end faces in circle 8 connect, and two small end faces in adjacent two pairs of disk spring washers 8 connect, and are made for the ease of processing
Waist wheel and installation are made, these disk spring washers 8 are pressed on the collar position 903 of 2 end of waist wheel, and the first bearing 7 deviates from
One end of disk spring washer 8 is equipped with the fastening nut 6 being screwed in shaft 9, and the fastening nut 6 connects with bearing inner race end face
And it can be by turning come so that bearing compresses disk spring washer 8 or release disk spring washer 8.
Gear shift part and gauge outfit part in above-described embodiment in relation to gas roots flowmeter are that the prior art can
To realize, therefore, do not repeat herein.
Further, the inner ring positioned at the bearing of rear end cap 14 (second bearing 10 being mounted in axle sleeve 13), which is equipped with, is in
The end ring 11 of spherical shell shape, the end ring 11 directly cover on the inner ring end face of second bearing 10, the end of the shaft 9
Positioned at the groove center of end ring 11, screw 12 is along shaft 9 axially across the end for being screwed into shaft 9 after end ring 11
Portion.The structure design mainly avoids second bearing 10 stuck, and the spherical surface hill structure of end ring 11 can be prevented dexterously
Second bearing 10 is thoroughly killed, and can freely be relied on the elastic construction of end ring 11 to buffer when needed, be avoided stuck.
Further, as shown in fig. 6, being provided with twice groove by the edge at the maximum gauge both ends of the waist wheel 2
201；The groove 201 is arranged along the axial direction of waist wheel 2, can be used for deslagging.The side at existing flowmeter waist wheel maximum gauge end
Gap at edge between cavity inner wall is minimum, and impurity is stuck with being easiest to cause during air motion when waist wheel rotates, this
Impurity of the utility model in gas flow at minimum clearance can enter groove, flow out flowmeter by groove, effectively
The impurity influence stuck to flowmeter is reduced, while both having improved the stability of flowmeter metering.
Further, as shown in fig. 7, being additionally provided with opening screw hole 301 on the drive end bearing bracket 3, the opening screw hole 301 runs through
The opening end surface portion of cavity 1 that drive end bearing bracket 3 and upright front lid 3 are covered.When needing replacing or safeguarding, by corresponding spiral shell
Bolt is screwed into opening screw hole 301, when bolt touch cavity 1 be open end surfaces can be open-top by drive end bearing bracket 3, reach dismounting purpose.
Further, it is equipped with the first sealing ring 17 between end surfaces as shown in fig. 7, the drive end bearing bracket 3 and cavity 1 are open,
The cavity 1 is open end surfaces equipped with the seal groove for accommodating the second sealing ring 18, to realize that double containment, sealing effect are more preferable.
Further, as shown in Figure 1, the shaft 9 includes first rotating shaft 901 and the second shaft 902, first rotating shaft 901
It is coaxially embedded in the central shaft hole of waist wheel 2 respectively with the second shaft 902, in order to install rotor.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications completed under refreshing and technological thought or change, should be covered by the claim of the utility model.
Claims (6)
1. a kind of gas roots flowmeter, it is characterised in that：A pair of of rotor including cavity and equipped with waist wheel, the two of the cavity
Opposite open end is detachably provided with drive end bearing bracket and rear end cap respectively, and the waist wheel is within the cavity, the shaft of two rotors
Wherein one end stretches out the drive end bearing bracket and is respectively equipped with intermeshing synchromesh gear in the external part of two shafts；The front end
Bearing is embedded in lid and rear end cap respectively, the both ends of every shaft are installed in rotation on respective end after being each passed through the bearing
It covers,
Wherein, part of the shaft between waist wheel end face and the bearing face at the end is also cased with several dishes to being extruded
Spring washer, the disk spring washer are in cone tube shape, are connected per two large end faces in a pair of disk spring washer, adjacent
Two small end faces in two pairs of disk spring washers connect, and the bearing is equipped with away from one end of disk spring washer and is screwed in shaft
On fastening nut, the fastening nut connect with bearing inner race end face and can by turn come so that bearing compress disk spring
Washer or release disk spring washer.
2. gas roots flowmeter according to claim 1, it is characterised in that：Inner ring positioned at the bearing of rear end cap is equipped with
In the end ring of spherical shell shape, the end of the shaft is located at the groove center of end ring, screw along shaft axially across
The end of shaft is screwed into after end ring.
3. gas roots flowmeter according to claim 1 or claim 2, it is characterised in that：By the maximum gauge both ends of the waist wheel
Edge be provided with twice groove；The groove is arranged along the axial direction of waist wheel.
4. gas roots flowmeter according to claim 3, it is characterised in that：Opening screw hole is additionally provided on the drive end bearing bracket,
The cavity hatch end surface portion that the opening screw hole is covered through drive end bearing bracket and upright front lid.
5. gas roots flowmeter according to claim 4, it is characterised in that：The drive end bearing bracket and cavity hatch end surfaces it
Between be equipped with the first sealing ring, the cavity hatch end surfaces be equipped with accommodate the second sealing ring seal groove.
6. gas roots flowmeter according to claim 5, it is characterised in that：The Independent Observer Program includes first rotating shaft and second turn
Axis, first rotating shaft and the second shaft are coaxially embedded in the central shaft hole of waist wheel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607910.1U CN207675242U (en) | 2017-11-27 | 2017-11-27 | A kind of gas roots flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607910.1U CN207675242U (en) | 2017-11-27 | 2017-11-27 | A kind of gas roots flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675242U true CN207675242U (en) | 2018-07-31 |
Family
ID=62967244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721607910.1U Active CN207675242U (en) | 2017-11-27 | 2017-11-27 | A kind of gas roots flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830904A (en) * | 2017-11-27 | 2018-03-23 | 重庆前卫克罗姆表业有限责任公司 | Gas roots flowmeter |
-
2017
- 2017-11-27 CN CN201721607910.1U patent/CN207675242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830904A (en) * | 2017-11-27 | 2018-03-23 | 重庆前卫克罗姆表业有限责任公司 | Gas roots flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401121 No. 69, Mount Huangshan Avenue, Yubei District, Chongqing Patentee after: Chongqing Qianwei watch Co., Ltd Address before: 401121 No. 69, Mount Huangshan Avenue, Yubei District, Chongqing Patentee before: QIANWEI KROMSCHRODER METERS (CHONGQING) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |