CN203130498U - Screw sleeve of horizontal screw pump - Google Patents
Screw sleeve of horizontal screw pump Download PDFInfo
- Publication number
- CN203130498U CN203130498U CN 201320100058 CN201320100058U CN203130498U CN 203130498 U CN203130498 U CN 203130498U CN 201320100058 CN201320100058 CN 201320100058 CN 201320100058 U CN201320100058 U CN 201320100058U CN 203130498 U CN203130498 U CN 203130498U
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- China
- Prior art keywords
- screw rod
- cover
- pump
- screw
- overcoat
- 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 - Fee Related
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Abstract
The utility model provides a screw sleeve of a horizontal screw pump, belongs to the technical field of water pumps, and solves the problem that when the horizontal screw pump is in work, the noise and the vibration are large in the prior art. The screw sleeve of the horizontal screw pump comprises a sleeve body, wherein the center of the sleeve body is provided with a spiral-shaped cavity body which can be matched with a screw, the sleeve body comprises an inner sleeve and an outer sleeve which are connected into a whole, a vibration reducing groove is formed between the inner sleeve and the outer sleeve, the groove port of the vibration reducing groove is located on the bottom of the sleeve body, and the groove bottom of the vibration reducing groove is located on the upper part of the sleeve body. The screw sleeve of the horizontal screw pump can reduce the noise and the vibration when the horizontal screw pump is in work, and has the advantage of prolonging the service life of the screw sleeve.
Description
Technical field
The utility model has related to a kind of screw pump, has been specifically related to a kind of screw rod cover of horizontal screw pump.
Background technique
Screw pump is a kind of change positive displacement pump that the nineties grows up, and its principle is to allow the Volume Changes of liquid produce pressure, and its advantage is that volume is little, simple in structure, the lift height.
For example Chinese patent discloses a kind of screw rod submersible pump [application number has been: 201020544812.X; Notice of authorization number: CN 201818496U], comprise pump head, pump barrel and motor, the output shaft of motor passes the motor shaft bearing and is connected with the screw rod core by shaft joint, the screw rod cover that cooperates with screw rod core spiral is bolted on the lower end surface of pump head by first, link has a cylindrical body, the lower end of this cylindrical body is provided with adpting flange, adpting flange is bolted on the motor shaft bearing by second, on the pump barrel, the underpart is sleeved on the lower end of pump head and the upper end of cylindrical body respectively, and is respectively equipped with seal ring between the inwall of pump head and cylindrical body and pump barrel.The utility model is provided with link between motor and pump barrel, unclamp the bolt that is connected between link and the motor shaft bearing and motor can be taken off, and greatly facilitates the replacing of screw rod core and screw rod cover.
Above-mentioned screw rod submersible pump is direct sliding friction between screw rod and the screw rod cover in work, because the wobbler action meeting produces very big swing, and the more big amplitude of fluctuation of centripetal moment is just more big when rotating for screw rod, and the more high hunting frequency of rotating speed is more high.Therefore screw rod will drive screw rod cover a large amount of vibration and the noises of swing generation together, the wearing and tearing of screw rod and screw rod cover have not only been increased, reduced the working life of screw rod cover, and the noise that produces has also limited the screw rod submersible pump on land and the use of occasion such as indoor.
Summary of the invention
There are the problems referred to above in the utility model at existing technology, has proposed a kind of screw rod cover of horizontal screw pump, the noise that this screw rod cover produces in the time of can effectively reducing the horizontal screw pump work and vibration.
The utility model is realized by following technical proposal: a kind of screw rod cover of horizontal screw pump, the horizontal screw pump comprises the pump housing and is located at the pump housing interior screw rod and screw rod cover, described screw rod cover comprises body, described body center has the spiral cavity that is that can cooperate with screw rod, it is characterized in that, described body comprises interior cover and is enclosed within the outer overcoat of interior cover, cover is connected one with described overcoat in described, has the vibration damping groove between cover and the described overcoat in described, the notch of described vibration damping groove is positioned at the bottom of described body, and the bottom land of described vibration damping groove is positioned at the top of described body.
When mounted, the overcoat of screw rod cover is positioned in the pump housing, and cover swings in will driving during the screw rod eccentric rotary, and the hunting frequency of the more high interior cover of screw speed is just more high.And interior cover is connected one with overcoat, and overcoat also will swing when interior cover swings.The vibration damping groove can improve the space of buffering for the high frequency wobbles of interior cover, thereby internally efficient buffer is carried out in the swing of cover, the hunting frequency that passes to overcoat through cover in the vibration damping groove buffering back will reduce greatly, thereby wearing and tearing, vibration and the noise of cover and screw rod in reducing, the working life of having improved the screw rod cover.When the swinging of interior cover; the bottom that the bottom of body is overlapped is just had the greatest impact by the rotation of screw rod cover; therefore the hunting frequency of the bottom of cover is bigger in; the notch of vibration damping groove is positioned at the bottom of body can play the purpose that reduces noise and protection screw rod cover better for swinging of cover provides buffering.
In the screw rod cover of above-mentioned a kind of horizontal screw pump, the radial width of described vibration damping groove is slightly larger than described screw rod with respect to the throw of eccentric of the central axis of described body.When the screw rod eccentric rotary, interior cover can swing with the screw rod eccentric rotary, and the amplitude that interior cover swings is approximately equal to screw rod with respect to the throw of eccentric of the central axis of body.Therefore, when the radial width of vibration damping groove is slightly larger than the throw of eccentric of screw rod, when interior cover swings, interior cover will can not run into overcoat, wearing and tearing and noise in setting can better reduce like this between cover and the screw rod.
In the screw rod cover of above-mentioned a kind of horizontal screw pump, the bottom of described overcoat has the clubfoot of annular, and the outer side wall of described clubfoot and described overcoat is perpendicular.Clubfoot is set to be conducive to the screw rod cover is positioned in the screw pump.
In the screw rod cover of above-mentioned a kind of horizontal screw pump, described body adopts rubber material to make.Rubber material has elasticity and damping property preferably, the noise and the vibration that produce in the time of can reducing the cover body running.
Compared with prior art, the screw rod cover of this horizontal screw pump has the following advantages:
1, cover and overcoat in the screw rod cover comprises be the vibration damping groove between interior cover and the overcoat, when the screw rod high speed rotating in cover can high frequency wobbles, the wearing and tearing in the buffering by the vibration damping groove can reduce between cover and the screw rod, the while is also reduced the hunting frequency of overcoat.Therefore this screw rod cover has long service life, advantage that noise is low.
2, the radial width of vibration damping groove is slightly larger than the throw of eccentric of screw rod, when the screw rod high speed rotating, interior cover is with high frequency wobbles, and the high frequency wobbles of interior cover can only be by the joint transmitting vibrations of interior cover and overcoat, reduce the hunting frequency of overcoat, also reduced the wearing and tearing between interior cover and the screw rod simultaneously.So this screw rod cover has, and noise is low, the advantage of long service life.
3, the bottom of overcoat has clubfoot, therefore can easily overcoat be positioned in the pump housing.Therefore this screw rod cover has and locatees advantage easily.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is embodiment's of the present utility model structural representation.
Among the figure, 1, body; 1a, interior cover; 1b, overcoat; 2, vibration damping groove; 3, notch; 4, bottom land; 5, cavity; 6, screw rod; 7, the pump housing; 8, clubfoot; 9, motor; 10, output shaft.
Embodiment
Below be specific embodiment of the utility model, and by reference to the accompanying drawings the technical solution of the utility model be further described, but the utility model is not limited to these embodiments.
The screw rod cover of a kind of horizontal screw pump as shown in Figure 1 comprises body 1, and body 1 adopts rubber material to make, and rubber material has elasticity and damping property preferably, the noise and the vibration that produce in the time of can reducing body 1 work; Described body 1 center has the spiral cavity 5 that is that can cooperate with screw rod 6, overlap 1a in described body 1 comprises and be enclosed within the outer overcoat 1b of interior cover 1a, cover 1a is connected one with described overcoat 1b in described, has vibration damping groove 2 between cover 1a and the described overcoat 1b in described, the notch 3 of described vibration damping groove 2 is positioned at the bottom of described body 1, and the bottom land 4 of described vibration damping groove 2 is positioned at the top of described body 1.
Cover 1a swings in will driving during screw rod 6 eccentric rotary, and the hunting frequency of the more high interior cover 1a of screw rod 6 rotating speeds is just more high.And interior cover 1a is connected one with overcoat 1b, and overcoat 1b also will swing when interior cover 1a swings.The space that vibration damping groove 2 can improve buffering for the high frequency wobbles of interior cover 1a, thereby efficient buffer is carried out in the swing of internally overlapping 1a, the hunting frequency that passes to overcoat 1b through cover 1a in the vibration damping groove 2 buffering backs will reduce greatly, thereby wearing and tearing, vibration and the noise of cover 1a and screw rod 6 in reducing, the working life of having improved the screw rod cover.When the swinging of interior cover 1a; 1a is overlapped in the bottom of body 1 just bottom is had the greatest impact by the rotation of screw rod cover; therefore the hunting frequency of the bottom of cover 1a is bigger in; the notch 3 of vibration damping groove 2 is positioned at the bottom of body 1 can play the purpose that reduces noise and protection screw rod cover better for swinging of 1a of cover provides buffering.
The radial width of vibration damping groove 2 is slightly larger than described screw rod 6 with respect to the throw of eccentric of the central axis of body 1.When screw rod 6 eccentric rotary, interior cover 1a can swing with screw rod 6 eccentric rotary, and the amplitude that interior cover 1a swings is approximately equal to screw rod 6 with respect to the throw of eccentric of the central axis of body 1.Therefore, when the radial width of vibration damping groove 2 is slightly larger than the throw of eccentric of screw rod 6, when interior cover 1a swings, interior cover 1a will can not meet overcoat 1b, wearing and tearing and noise in setting can better reduce like this between cover 1a and the screw rod 6.
As shown in Figure 2, the horizontal screw pump comprises the pump housing 7 and screw rod 6 and the screw rod cover be located in the pump housing 7, and the output shaft 10 of motor 9 is connected with screw rod 6 and drive screw 6 rotates; The overcoat 1b of screw rod cover is positioned in the pump housing 7, and the bottom of overcoat 1b has the clubfoot 8 of annular, and described clubfoot 8 is perpendicular with the outer side wall of described overcoat 1b, is conducive to the screw rod cover is positioned in the screw pump after being provided with clubfoot 8.When motor 9 work, motor shaft 10 drive screws 6 high speed rotating, the high frequency wobbles of cover 1a in the high speed rotating of screw rod 6 will drive, and vibration damping groove 2 can internally overlap the high frequency of 1a and rotates and to carry out vibration damping and noise reduction, thereby the vibration that passes to overcoat 1b will reduce greatly, the wearing and tearing of interior cover 1a and screw rod 6 have not only been reduced, improved the working life of body 1, and vibration and the noise of body 1 have been reduced, enlarged the using scope of horizontal screw pump, such as the horizontal screw pump is used for land or, even indoor scenarios.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as body 1, interior cover 1a, overcoat 1b, vibration damping groove 2, notch 3, bottom land 4, cavity 5, screw rod 6, the pump housing 7, clubfoot 8, motor 9, output shaft 10 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (4)
1. the screw rod cover of a horizontal screw pump, the horizontal screw pump comprises the pump housing (7) and is located at the pump housing (7) interior screw rod (6) and screw rod cover, described screw rod cover comprises body (1), described body (1) center have can cooperate with screw rod (6) be spiral cavity (5), it is characterized in that, described body (1) comprises interior cover (1a) and is enclosed within the outer overcoat (1b) of interior cover (1a), cover (1a) is connected one with described overcoat (1b) in described, has vibration damping groove (2) between cover (1a) and the described overcoat (1b) in described, the notch (3) of described vibration damping groove (2) is positioned at the bottom of described body (1), and the bottom land (4) of described vibration damping groove (2) is positioned at the top of described body (1).
2. the screw rod cover of a kind of horizontal screw pump as claimed in claim 1 is characterized in that, the radial width of described vibration damping groove (2) is slightly larger than described screw rod (6) with respect to the center of described body (1) throw of eccentric by line.
3. the screw rod cover of a kind of horizontal screw pump as claimed in claim 1 or 2 is characterized in that, the bottom of described overcoat (1b) has the clubfoot (8) of annular, and described clubfoot (8) is perpendicular with the outer side wall of described overcoat (1b).
4. the screw rod cover of a kind of horizontal screw pump as claimed in claim 3 is characterized in that, described body (1) adopts rubber material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100058 CN203130498U (en) | 2013-03-04 | 2013-03-04 | Screw sleeve of horizontal screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100058 CN203130498U (en) | 2013-03-04 | 2013-03-04 | Screw sleeve of horizontal screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130498U true CN203130498U (en) | 2013-08-14 |
Family
ID=48938480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320100058 Expired - Fee Related CN203130498U (en) | 2013-03-04 | 2013-03-04 | Screw sleeve of horizontal screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130498U (en) |
-
2013
- 2013-03-04 CN CN 201320100058 patent/CN203130498U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20170304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |