CN208619337U - A kind of low noise high pressure three-screw pump - Google Patents
A kind of low noise high pressure three-screw pump Download PDFInfo
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- CN208619337U CN208619337U CN201821225140.9U CN201821225140U CN208619337U CN 208619337 U CN208619337 U CN 208619337U CN 201821225140 U CN201821225140 U CN 201821225140U CN 208619337 U CN208619337 U CN 208619337U
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- pump
- bar
- bearing
- pump housing
- mobile jib
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Abstract
The utility model discloses a kind of low noise high pressure three-screw pumps, including the pump housing, pump footing, safety valve is provided with above the pump housing, the pump footing is provided with below the pump housing, described pump housing one end is provided with front cover, the pump housing other end is provided with rear cover, bearing housing is provided on the outside of the front cover, the bearing housing is internally provided with bearing, it is provided with mechanical seal on the outside of the bearing, the Bearing inner is provided with mobile jib, is machined with keyway on the mobile jib outer end, the mobile jib side is provided with from bar, described that bar one end is provided with balance set.Beneficial effect is: 1 compares with existing gear pump, and great advantage is low, high-efficient, with small vibration energy consumption, low noise, output pulse free；2, it without departing from original position when rotating from bar, avoids colliding with mobile jib, to avoid mobile jib and damage from bar；3, vibration and the noise of generation when pump operating are significantly reduced, and then improves the efficiency of pump, extends the service life of pump.
Description
Technical field
The utility model relates to three screw pump manufacturing technology fields, more particularly to a kind of low noise high pressure three-screw pump.
Background technique
Cold rolling mill milling train matched lubricating oil pump, most of is gear pump, now just large area using screw pump come
Gear pump is substituted, steel rolling mill's noise is one of main public hazards in current environment pollution at present, and steel rolling mill requires screw pump in high speed
The noise pumped under high pressure reaches 82 decibels hereinafter, only in this way can just substantially improve the environmental pollution between pump work.
Existing gear pump, engagement rotation when pumping driving and driven working gear, pump pumped (conveying) medium function simultaneously as lubricant and are
The gear of rotation provides lubrication, and since the flank of tooth has extruding and friction when main driven gear, which engages, to be rotated, all gear pumps are to master
Flank of tooth molded line, machining accuracy and the tooth face hardness of driven gear have very high requirement.So gear pump exists in use
Low efficiency, the disadvantage that vibration is big, noise is big and easy to wear.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of low noise high pressure three-screw pump.
The utility model achieves the above object through the following technical schemes:
A kind of low noise high pressure three-screw pump, including the pump housing, pump footing, the pump housing top is provided with safety valve, described
It is provided with the pump footing below the pump housing, described pump housing one end is provided with front cover, and the pump housing other end is provided with rear cover, described
Bearing housing is provided on the outside of front cover, the bearing housing is internally provided with bearing, is provided with mechanical seal on the outside of the bearing, described
Bearing inner is provided with mobile jib, and keyway is machined on the mobile jib outer end, and the mobile jib side is provided with from bar, described from bar
One end is provided with balance set, described that the bar other end is provided with positioning thimble, described that bar inner end is provided with retaining ring, the pump
It is provided with sound-absorbing inner sleeve on internal wall, the sound-absorbing inner sleeve is internally provided with bushing.
In above structure, the mobile jib connecting power device and described is intermeshed the mobile jib between bar helicla flute
And the cooperation of screw rod and the bushing inner hole, to form multi-stage sealed chamber, when screw rod rotates sealed chamber just it is continuous not
It moves axially in the same direction disconnectedly, thus makes pumped medium continuance lifting, pressurization, due to the balance set and the positioning
The effect of thimble, it is described from bar rotate when will not vertically move, and the mobile jib and it is described between the bar field of conjugate action with
And will form one layer of oil film between the mobile jib outer circle and the bushing inner hole inner wall, so that frictional force is reduced, by low noise, institute
The noise that sound-absorbing inner sleeve can further be spread out of inside absorption pump is stated, noise when pump work is reduced.
In order to further increase the using effect of low noise high pressure three-screw pump, the sound-absorbing inner sleeve is fixed by screws in
On the pump housing inner wall, the sound-absorbing inner sleeve is made of porous sound absorbing material, the sound-absorbing inner sleeve with a thickness of ten millimeters.
In order to further increase the using effect of low noise high pressure three-screw pump, the safety valve is fixed by screws in institute
It states on the pump housing, two separate spaces of the safety valve are connected to the pump housing inner cavity.
In order to further increase the using effect of low noise high pressure three-screw pump, the mobile jib is fixed on by the bearing
The pump body, the bearing at least one, the bearing is nested in inside the bearing housing.
In order to further increase the using effect of low noise high pressure three-screw pump, the front cover and the rear cover pass through screw
The pump housing both ends are fixed on, are provided with sealing ring, the bearing housing on the front cover, the rear cover and the pump housing contact surface
It is fixed by screws on the front cover.
In order to further increase the using effect of low noise high pressure three-screw pump, the balance set is nested in outside the mobile jib
Portion, the edge card of the balance set is between the pump housing and the front cover, and there are two installations for symmetrical molding on the balance set
The circular hole from bar.
It is described to share two from bar in order to further increase the using effect of low noise high pressure three-screw pump, it is described from bar
One end is plugged on the balance set, is meshed together described in two from bar and the mobile jib.
In order to further increase the using effect of low noise high pressure three-screw pump, the retaining ring is threadedly secured to described
Mobile jib end is symmetrical arranged on the retaining ring edge lug boss inner wall there are two the positioning thimble, and the positioning thimble is plugged on
It is described from boom end.
Compared with prior art, the beneficial effects of the utility model are as follows:
1 compares with existing gear pump, and great advantage is low, high-efficient, with small vibration energy consumption, low noise, output acrotism
It is dynamic；
2, it without departing from original position when rotating from bar, avoids colliding with mobile jib, to avoid mobile jib and damage from bar
It is bad；
3, vibration and the noise of generation when pump operating are significantly reduced, and then improves the efficiency of pump, extends pump
Service life.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of sectional structure schematic diagram of low noise high pressure three-screw pump described in the utility model；
Fig. 2 is a kind of retaining ring structure diagram of low noise high pressure three-screw pump described in the utility model；
Fig. 3 is a kind of balance set structure diagram of low noise high pressure three-screw pump described in the utility model.
The reference numerals are as follows:
1, the pump housing；2, bushing；3, front cover；4, footing is pumped；5, bearing housing；6, rear cover；7, balance set；8, mobile jib；9, from bar；
10, retaining ring；11, bearing；12, keyway；13, mechanical seal；14, safety valve；15, sound-absorbing inner sleeve；16, positioning thimble.
Specific embodiment
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
Embodiment one:
As shown in Figure 1-Figure 3, a kind of low noise high pressure three-screw pump, including the pump housing 1, pump footing 4, are arranged above the pump housing 1
There is safety valve 14, pump footing 4 is provided with below the pump housing 1,1 one end of the pump housing is provided with front cover 3, and 1 other end of the pump housing is provided with rear cover
6, bearing housing 5 is provided on the outside of front cover 3, bearing housing 5 is internally provided with bearing 11, mechanical seal 13 is provided on the outside of bearing 11,
Bearing 11 is internally provided with mobile jib 8, keyway 12 is machined on 8 outer end of mobile jib, 8 side of mobile jib is provided with from bar 9, from bar 9 one
End is provided with balance set 7, and 9 other end of bar is provided with positioning thimble 16,9 inner end of bar is provided with retaining ring 10,1 inner wall of the pump housing
On be provided with sound-absorbing inner sleeve 15, sound-absorbing inner sleeve 15 is internally provided with bushing 2.
Embodiment two:
The difference between this embodiment and the first embodiment lies in:
In the present embodiment, retaining ring 10 is threadedly secured to 8 end of mobile jib, is symmetrical arranged on 10 edge lug boss inner wall of retaining ring
There are two positioning thimble 16, positioning thimble 16 is plugged on from 9 end of bar.
Specifically, setting can collide to avoid being subjected to displacement from bar 9 in rotation with mobile jib 8 in this way.
The working principle of the utility model are as follows: 8 connecting power device of mobile jib and is mutually nibbled mobile jib 8 between 9 helicla flute of bar
Conjunction and the cooperation of screw rod and 2 inner hole of bushing, to form multi-stage sealed chamber, sealed chamber is just successive when screw rod rotates
Ground moves axially in the same direction, thus makes pumped medium continuance lifting, pressurization, due to balance set 7 and positioning thimble 16
Effect, from bar 9 rotate when will not vertically move, and mobile jib 8 and between 9 field of conjugate action of bar and 8 outer circle of mobile jib and lining
It covers and will form one layer of oil film between 2 inner hole inner walls, to reduce frictional force, by low noise, sound-absorbing inner sleeve 15 can further inhale
The internal noise spread out of of pump is received, noise when pump work is reduced.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.
Claims (8)
1. a kind of low noise high pressure three-screw pump, it is characterised in that: including the pump housing (1), pump footing (4), the pump housing (1) top
It is provided with safety valve (14), is provided with the pump footing (4) below the pump housing (1), the described pump housing (1) one end is provided with front cover
(3), the pump housing (1) other end is provided with rear cover (6), is provided with bearing housing (5), the bearing housing on the outside of the front cover (3)
(5) it is internally provided with bearing (11), is provided with mechanical seal (13) on the outside of the bearing (11), setting inside the bearing (11)
Have mobile jib (8), be machined with keyway (12) on mobile jib (8) outer end, mobile jib (8) side is provided with from bar (9), described
It is provided with balance set (7) from bar (9) one end, it is described to be provided with positioning thimble (16) from bar (9) other end, it is described out of bar (9)
End is provided with retaining ring (10), is provided with sound-absorbing inner sleeve (15) on the pump housing (1) inner wall, is set inside the sound-absorbing inner sleeve (15)
It is equipped with bushing (2).
2. a kind of low noise high pressure three-screw pump according to claim 1, it is characterised in that: the sound-absorbing inner sleeve (15) is logical
It crosses screw to be fixed on the pump housing (1) inner wall, the sound-absorbing inner sleeve (15) is made of porous sound absorbing material, in the sound-absorbing
Cover (15) with a thickness of ten millimeters.
3. a kind of low noise high pressure three-screw pump according to claim 1, it is characterised in that: the safety valve (14) passes through
Screw is fixed on the pump housing (1), and two separate spaces of the safety valve (14) are connected to the pump housing (1) inner cavity.
4. a kind of low noise high pressure three-screw pump according to claim 1, it is characterised in that: the mobile jib (8) passes through institute
Stating bearing (11), to be fixed on the pump housing (1) internal, the bearing (11) at least one, the bearing (11) is nested in described
Bearing housing (5) is internal.
5. a kind of low noise high pressure three-screw pump according to claim 1, it is characterised in that: the front cover (3) and described
Rear cover (6) is fixed by screws in the pump housing (1) both ends, and the front cover (3), the rear cover (6) are contacted with the pump housing (1)
Sealing ring is provided on face, the bearing housing (5) is fixed by screws on the front cover (3).
6. a kind of low noise high pressure three-screw pump according to claim 1, it is characterised in that: the balance set (7) is nested
External in the mobile jib (8), the edge card of the balance set (7) is described flat between the pump housing (1) and the front cover (3)
There are two the installation circular holes from bar (9) for symmetrical molding on weighing apparatus set (7).
7. a kind of low noise high pressure three-screw pump according to claim 1, it is characterised in that: described to share two from bar (9)
Root, it is described to be plugged on the balance set (7) from bar (9) one end, one is engaged on from bar (9) and the mobile jib (8) described in two
It rises.
8. a kind of low noise high pressure three-screw pump according to claim 1, it is characterised in that: the retaining ring (10) passes through spiral shell
Line is fixed on the mobile jib (8) end, is symmetrical arranged that there are two the positioning thimbles on retaining ring (10) the edge lug boss inner wall
(16), the positioning thimble (16) is plugged on described from bar (9) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225140.9U CN208619337U (en) | 2018-08-01 | 2018-08-01 | A kind of low noise high pressure three-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821225140.9U CN208619337U (en) | 2018-08-01 | 2018-08-01 | A kind of low noise high pressure three-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619337U true CN208619337U (en) | 2019-03-19 |
Family
ID=65708213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821225140.9U Active CN208619337U (en) | 2018-08-01 | 2018-08-01 | A kind of low noise high pressure three-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619337U (en) |
-
2018
- 2018-08-01 CN CN201821225140.9U patent/CN208619337U/en active Active
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