CN203214262U - Backpressure-adjustable booster pump - Google Patents
Backpressure-adjustable booster pump Download PDFInfo
- Publication number
- CN203214262U CN203214262U CN 201320141229 CN201320141229U CN203214262U CN 203214262 U CN203214262 U CN 203214262U CN 201320141229 CN201320141229 CN 201320141229 CN 201320141229 U CN201320141229 U CN 201320141229U CN 203214262 U CN203214262 U CN 203214262U
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- assembly
- end cap
- piston
- pump
- connecting plate
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Abstract
The utility model discloses a backpressure-adjustable booster pump, which belongs to a device for carrying out precise adjustment on the output pressure of a gas-liquid booster pump. According to the gas-liquid booster pump, a piston assembly is inserted into a central hole of a left end cover assembly, a cylinder barrel is sleeved on the outer side of the piston assembly, then the piston assembly is inserted in a central hole of a right end cover assembly, the left and right end cover assemblies are connected together through a screw and a nut, a connecting plate assembly is arranged on the left and right end cover assemblies through screws, and finally, a pressure limiting device assembly is arranged on the connecting plate assembly through screws. According to the gas-liquid booster pump, the gas discharge of the pump is controlled through the output pressure, and then the starting and the stopping of the pump are controlled, so as to enable the control on the output pressure to be realized, thereby realizing the precise control on the output pressure of the pump; the function of closed loop control on the output pressure without human intervention can be realized; the pump always can be running under the atmospheric pressure, thereby improving the working efficiency of the pump.
Description
Technical field
The utility model relates to a kind of backpressure regulation formula suction booster, belongs to the device that gas-liquid pressure-boosting pump delivery pressure is accurately regulated.
Background technique
The working principle of currently marketed gas-liquid pressure-boosting pump is based on the difference in areas principle, acts on the bigger piston of cylinder area by pressurized air, acts on the liquid that needs supercharging by the less piston rod of area, reaches the purpose of supercharging.
The fastest in gas-liquid pressure-boosting pump work initial stage speed of circulation, output liquid flow maximum.Along with the rising gradually of delivery pressure, the resistance that piston rod bears is also increasing, and the speed of circulation of pump is also more and more slower, and the output liquid flow is also more and more littler.When output fluid pressure acts on power on the piston rod and pressurized air the power on the piston of acting on when reaching balance, pump can stop automatically.
When because of leak or other reasons when causing that delivery pressure descends or the bleed pressure that provides raises pump can start immediately.
From the description of above principle to the gas-liquid pressure-boosting pump, it is following with shortcoming to find that currently marketed gas-liquid pressure-boosting pump exists.
1. though when the gas-liquid pressure-boosting pump work, delivery pressure finally can reach predetermined pressure.But when delivery pressure was more and more higher, pump can be worked more and more slowlyer, and the output liquid flow is also more and more littler.When some hydraulic systems are had relatively high expectations to output flow, the application area of pump just there has been certain limitation.
Traditional solution is the output flow that increase cylinder bore and diameter of piston rod increase each stroke, has so just increased cost.And also can't avoid pump when delivery pressure is more and more higher, pump can work more and more slower intrinsic defect.
2. the working principle of gas-liquid pressure-boosting pump is to act on the bigger piston of cylinder area by pressurized air, acts on the liquid that needs supercharging by the less piston rod of area, reaches the purpose of supercharging.This regulates by bleed pressure with regard to the delivery pressure of saying pump, and bleed pressure much doubly acts on the bleed pressure amplification on the pressurized liquid by the difference in areas principle, and when bleed pressure produced very little fluctuation, delivery pressure can produce very big fluctuation.In the occasion that delivery pressure is had relatively high expectations, can only realize by the strict guarantee bleed pressure.This just has relatively high expectations to the supply pressure fluctation of factory.And general plant source pressure can't guarantee.
Above shortcoming is the intrinsic shortcoming of pump itself, also is the shortcoming that the gas-liquid pressure-boosting pump in present market all exists.Do not solve top shortcoming and just the application area of pump is had very big restriction.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of performance higher two liquid suction boosters of taking offence.
The technical solution adopted in the utility model is: a kind of backpressure regulation formula suction booster, comprise left and right end-cap assembly, pressure limiting device assembly, piston assembly and connecting plate assembly, it is characterized in that: piston assembly is inserted in the left end cap assembly center hole, cylinder barrel is enclosed within the piston assembly outside, again piston assembly is inserted in the right end cap assembly center hole, then left and right end-cap assembly is linked together by screw mandrel, nut, the connecting plate assembly is installed on the left and right end-cap assembly by screw, at last the pressure limiting device assembly is installed on the connecting plate assembly by screw.
Described left end cap assembly is packed Y RunddichtringO, wear-resisting band, gland into and is screwed in the left end cap center hole, seal ring, the cover left end cap inboard of packing into are screwed, with O type circle and commutation pin sulfuration back by the outside left end cap of packing into, pack into then spring, screw plug, the left end cap of at last inlet one-way valve, outlet one-way valve being packed into from ground and side respectively, the right end cap assembly is identical with the left end cap assembly.
Described pressure limiting device assembly is packed pneumatic pull bar envelope, baffle ring, internal circlip, rectangular coil spring, swivel nut, O type circle in the valve body hole; O type circle is installed on the valve rod, and in the valve body hole of packing into together; Then U-shaped envelope, baffle ring, internal circlip are installed in the valve body hole of also packing into together in the end cap and fix with internal circlip, at last hexagon nut is screwed into the swivel nut outside, baffler is screwed into the valve body upper end.
Described piston assembly is installed in the piston outside with y-type seal ring, packs into piston rod in the piston center hole and has round nut to fix.
Described connecting plate assembly is installed in the connecting plate upper surface with Pneumatic reversal valve, and the pressure limiting device assembly is installed in the connecting plate upper surface with screw.
The beneficial effects of the utility model are: this backpressure regulation formula suction booster inserts piston assembly in the left end cap assembly center hole, cylinder barrel is enclosed within the piston assembly outside, again piston assembly is inserted in the right end cap assembly center hole, then left and right end-cap assembly is linked together by screw mandrel, nut, the connecting plate assembly is installed on the left and right end-cap assembly by screw, at last the pressure limiting device assembly is installed on the connecting plate assembly by screw.This gas-liquid pressure-boosting pump comes the exhaust of control pump by delivery pressure, and then the startup of control pump and stopping, and has realized the control to delivery pressure conversely, has realized the delivery pressure of pump is accurately controlled.This function is the closed loop control to delivery pressure, does not need human intervention.Simultaneously pump can be worked all the time under maximum gas pressure, improve the working efficiency of pump.
Description of drawings
Fig. 1 is a kind of structural drawing of backpressure regulation formula suction booster.
Fig. 2 is a kind of right elevation of backpressure regulation formula suction booster.
Fig. 3 is prominent open type reversing arrangement structural drawing.
Fig. 4 is the pressure limiting device structural drawing.
Among the figure: 1, Pneumatic reversal valve, 2, screw, 3, connecting plate, 4, cylinder barrel, 5, screw, 6, screw, 7, cover, 8, seal ring, 9, O type circle, 10, screw plug, 11, spring, 12, the commutation pin, 13, piston rod, 14, gland, 15, left end cap, 16, inlet one-way valve, 17, y-type seal ring, 18, wear-resisting band, 19, piston, 20, y-type seal ring, 21, round nut, 22, screw mandrel, 23, nut, 24, the outlet one-way valve, 25, right end cap, 26, screw, 27, swivel nut, 28, hexagon nut, 29, the rectangular coil spring, 30, valve body, 31, valve rod, 32, O type circle, 33, baffler, 34 internal circlips, 35, baffle ring, 36, U-shaped envelope, 37, internal circlip, 38, end cap, 39, O type circle, 40, pneumatic pull bar envelope, 41, baffle ring, 42, internal circlip.
Embodiment
Followingly with reference to accompanying drawing structure of the present invention is described further.
Fig. 1,2 shows backpressure regulation formula supercharging pump structure.Comprise left and right end-cap assembly, pressure limiting device assembly, piston assembly and connecting plate assembly, this product adopts modular construction, and dismounting is easy to maintenance.
The left end cap assembly with Y RunddichtringO 17, wear-resistingly be with 18, gland 14 packs into fixing with spiral shell 5 in left end cap 15 center holes.Seal ring 8 cover left end cap 15 usefulness the screws 6 of packing in 7 of packing into are fixing, the left end cap 15 of packing into after O type circle 9 and commutation pin 12 are vulcanized, the spring 11 of packing into afterwards, screw plug 10.At last with inlet one-way valve 16, outlet one-way valve 24 left end cap 15 of packing into.The right end cap assembly is identical with the left end cap assembly.
The pressure limiting device assembly is installed in pneumatic pull bar envelope 40, baffle ring 41, internal circlip 42 in the valve body 30 according to sequencing; O type circle 32 is installed in the mounting groove of valve rod 31, and in packing valve body 30 into from right-hand member together; O type circle 39 is installed in the valve body 30, afterwards U-shaped envelope 36, baffle ring 35, internal circlip 34 is installed in sequentially in the end cap 38 together and adds from right-hand member, fixing with internal circlip 37 again; Rectangular coil spring 29 is packed into from left end, and swivel nut 27 is screwed in the valve body 30 left end screw threads afterwards, at last hexagon nut 28 is screwed into swivel nut 27 and tightens; At last baffler 33 is screwed into valve body 30 upper ends.
Piston assembly is installed in y-type seal ring 20 on the piston 19, with pack into piston 19 and have round nut 21 fixing of piston rod 13.
The connecting plate assembly is installed in Pneumatic reversal valve 1 on the connecting plate 3, and the pressure limiting device assembly is installed on the connecting plate 3 with screw 2.
Final assembly: piston assembly is inserted in the left end cap assembly, and the cylinder barrel 4 of packing into links together by screw mandrel 22, nut 23 the right end cap assembly again with the left end cap assembly.The connecting plate assembly is installed on the end cap of the left and right sides by screw 26.
Fig. 3 shows prominent open type reversing arrangement structural drawing.When piston bumped against commutation pin 12, commutation pin 12 can move moment, and these two ends, structure left and right sides are communicated, and gas enters into right-hand member and then the commutation of control Pneumatic reversal valve by left end.
Fig. 4 shows the pressure limiting device structural drawing.This structure is that the output medium pressure of pump is drawn one road lower right to this device, can promote valve rod and be moved to the left when output medium pressure raises, and the relief opening of pump is shut, after the relief opening of pump is shut, because the piston pressure at both sides equates that pump can stop automatically.The control of delivery pressure screws blind nut compression spring by the spring in pressure limiting device left side, and the delivery pressure of pump raises, and the delivery pressure of pump reduces during trip spring.
Claims (5)
1. backpressure regulation formula suction booster, comprise left and right end-cap assembly, pressure limiting device assembly, piston assembly and connecting plate assembly, it is characterized in that: piston assembly is inserted in the left end cap assembly center hole, cylinder barrel (4) is enclosed within the piston assembly outside, again piston assembly is inserted in the right end cap assembly center hole, then left and right end-cap assembly is linked together by screw mandrel (22), nut (23), the connecting plate assembly is installed on the left and right end-cap assembly by screw (26), at last the pressure limiting device assembly is installed on the connecting plate assembly by screw (2).
2. backpressure regulation formula suction booster according to claim 1, it is characterized in that: described left end cap assembly is with Y RunddichtringO (17), wear-resisting band (18), gland (14) is packed into, and left end cap (15) center hole is interior to be fixed with screw (5), seal ring (8), cover (7) is packed into, and left end cap (15) is inboard to be fixed with screw (6), with O type circle (9) and commutation pin (12) sulfuration back by the outside left end cap (15) of packing into, the spring (11) of packing into then, screw plug (10), at last with inlet one-way valve (16), outlet one-way valve (24) left end cap (15) of packing into from ground and side respectively, the right end cap assembly is identical with the left end cap assembly.
3. backpressure regulation formula suction booster according to claim 1 is characterized in that: described pressure limiting device assembly seals (40), baffle ring (41), internal circlip (42), rectangular coil spring (29), swivel nut (27), O type circle (39) with pneumatic pull bar and packs in valve body (30) hole; O type circle (32) is installed on the valve rod (31), and in valve body (30) hole of packing into together; Then U-shaped envelope (36), baffle ring (35), internal circlip (34) are installed in the end cap (38) and in valve body (30) hole of packing into together and fix with internal circlip (37), at last hexagon nut (28) is screwed into swivel nut (27) outside, baffler (33) is screwed into valve body (30) upper end.
4. backpressure regulation formula suction booster according to claim 1 is characterized in that: described piston assembly is installed in piston (19) outside with y-type seal ring (20), packs into piston rod (13) in piston (19) center hole and has round nut (21) fixing.
5. backpressure regulation formula suction booster according to claim 1, it is characterized in that: described connecting plate assembly is installed in connecting plate (3) upper surface with Pneumatic reversal valve (1), and the pressure limiting device assembly is installed in connecting plate (3) upper surface with screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141229 CN203214262U (en) | 2013-03-26 | 2013-03-26 | Backpressure-adjustable booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141229 CN203214262U (en) | 2013-03-26 | 2013-03-26 | Backpressure-adjustable booster pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214262U true CN203214262U (en) | 2013-09-25 |
Family
ID=49203806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320141229 Expired - Fee Related CN203214262U (en) | 2013-03-26 | 2013-03-26 | Backpressure-adjustable booster pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268226A (en) * | 2018-10-27 | 2019-01-25 | 上海国液压气动有限公司 | A kind of cold air one-level booster pump |
-
2013
- 2013-03-26 CN CN 201320141229 patent/CN203214262U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268226A (en) * | 2018-10-27 | 2019-01-25 | 上海国液压气动有限公司 | A kind of cold air one-level booster pump |
| CN109268226B (en) * | 2018-10-27 | 2024-04-26 | 上海国一液压气动有限公司 | Primary booster pump for cold air |
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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: 20130925 Termination date: 20180326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |