CN209444657U - The automatic start-stop valve of servo-hydraulic pumping system - Google Patents
The automatic start-stop valve of servo-hydraulic pumping system Download PDFInfo
- Publication number
- CN209444657U CN209444657U CN201920049676.8U CN201920049676U CN209444657U CN 209444657 U CN209444657 U CN 209444657U CN 201920049676 U CN201920049676 U CN 201920049676U CN 209444657 U CN209444657 U CN 209444657U
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- China
- Prior art keywords
- valve
- oil
- stop valve
- spool
- pump
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- 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
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 11
- 239000002828 fuel tank Substances 0.000 claims abstract description 15
- 230000008676 import Effects 0.000 claims abstract description 12
- 241000009298 Trigla lyra Species 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- -1 start and stop valve Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model belongs to hydraulic drive and control field, a kind of automatic start-stop valve of servo-hydraulic pumping system, is made of filter, fuel tank, start and stop valve, oil inlet pipe, pump, pouring orifice, oil outlet pipe, control piper, motor, working machine, oil return opening, spool, horizontal spring, ball valve, uprighting spring, control mouth, valve chest, valve import and valve outlet.The automatic start-stop valve of the utility model realizes the automatic switch during hydraulic pump starts and stops, and prevents oil circuit oil return, and when secondary work is not necessarily to oiling；Time and labour are saved, has many advantages, such as that structure is simple and economical practical；Engineering practical value with higher.
Description
Technical field
The utility model belongs to hydraulic drive and control field, is related to a kind of automatic start-stop valve of servo-hydraulic pumping system,
For realizing in the shutdown process of hydraulic pump, energy automatic open-close prevents the oil suction road oil return of hydraulic pump and inflatable chamber occurs.
Background technique
Hydraulic pump is the important motivity element during hydraulic drive, its function is exactly to convert mechanical energy into liquid
Pressure energy.The working principle of hydraulic pump is that the variation of pump chamber is realized in the movement of rotor, so that compression fluid has fluid
Pressure energy.There are many common type hydraulic pump, are divided into gear pump, vane pump and plunger pump etc. by structure.
Hydraulic pump is all the oil suction in fuel tank by inlet line, then arrange through high pressure drain line in the process of work
Out, in order to keep the continuous work pumped, entrained gas is unable in inlet line.The inlet line of entrained gas pump difficult to realize
Normal oil suction, even the starting of the stronger pump of suction capacity and working performance can also be deteriorated.Fuel tank or fuel tank are in
The hydraulic pump system of low level, hydraulic pump shut down when inlet line oil return can occur, will appear in pump chamber and inlet line air or
Person's vacuum is difficult normal oil transportation in the secondary booting of hydraulic pump, especially for the poor hydraulic pump of suction capacity using hydraulic
Starting pump, or after more renewing hydraulic pump before activation into in(-)line oiling cumbersome work.
In order to realize hydraulic pump in orderly closedown, it is full of oil liquid in fluid pressure line, is again started up convenient for hydraulic pump, sends out
Opening during hydraulic pump starts and stops automatically may be implemented in a kind of automatic start-stop valve of bright servo-hydraulic pumping system, the valve
It closes, prevents oil circuit oil return, when secondary work is not necessarily to oiling.
Summary of the invention
The technical solution of the automatic start-stop valve of servo-hydraulic pumping system is as follows:
By filter 1, fuel tank 2, start and stop valve 3, oil inlet pipe 4, pump 5, oil outlet pipe 6, control piper 7, motor 8, work
Machine 9 forms；Motor 8 is operated by shaft coupling transfer tube 5；Pump 5 is connect by oil outlet pipe 6 with working machine 9；Filter 1 is installed
In the end of the separate pump 5 of the oil inlet pipe 4 of pump 5；Filter 1 and start and stop valve 3 are mounted in fuel tank 2, and are immersed in oil liquid always；
Start and stop valve 3 is mounted in the oil inlet pipe 4 between filter 1 and pump 5；Pass through control piper between oil outlet pipe 6 and start and stop valve 3
7 connections.
Start and stop valve 3 by oil return opening 3-1, spool 3-2, horizontal spring 3-3, ball valve 3-4, uprighting spring 3-5, control mouth 3-6,
Valve chest 3-7, valve import 3-8 and valve outlet 3-9 and composition；Oil return opening 3-1, control mouth 3-6, valve import 3-8, valve outlet 3-9
It is arranged on valve chest 3-7, valve import 3-8 and valve outlet 3-9 are arranged vertically on the two sides of valve chest 3-7, center line alignment；
Uprighting spring 3-5 carries ball valve 3-4 and is encapsulated in spool 3-2, and there is conducting in two outsides of uprighting spring 3-5 and ball valve 3-4
There is another through hole parallel with via hole in hole on spool 3-2；The left side of spool 3-2 is connected with horizontal spring 3-3, oil return opening
The left side of 3-1 face spool 3-2；The right side of spool 3-2 and the inner cavity of valve chest 3-7 form oil cylinder, control mouth 3-6 face
Spool 3-2.
The utility model is that the pressure difference generated when being worked by hydraulic pump itself realizes hydraulic pump startup by the valve
With the automatic switch in stopped process, oil circuit oil return is prevented, when secondary work is not necessarily to oiling, saves time and labour, has
Have the advantages that structure is simple and economical practical；Engineering practical value with higher.
Detailed description of the invention
The hydraulic pump system of Fig. 1 the utility model forms figure.
The closed state working drawing of Fig. 2 the utility model start and stop valve.
The on state working drawing of Fig. 3 the utility model start and stop valve.
Specific embodiment
The implementation process of the utility model is described with reference to the accompanying drawing.
Such as Fig. 1, the automatic start-stop valve of servo-hydraulic pumping system, by filter 1, fuel tank 2, start and stop valve 3, oil inlet pipe 4, pump
5, oil outlet pipe 6, control piper 7, motor 8, working machine 9 form；Motor 8 is operated by shaft coupling transfer tube 5；Pump 5 is by going out
Oil pipe line 6 is connect with working machine 9；Filter 1 is mounted on the oil inlet pipe 4 of pump 5 far from the end of pump 5；Filter 1 and start and stop valve
3 are mounted in fuel tank 2, and are immersed in oil liquid always；Start and stop valve 3 is mounted in the oil inlet pipe 4 between filter 1 and pump 5；Out
It is connected between oil pipe line 6 and start and stop valve 3 by control piper 7.
Such as Fig. 2, Fig. 3, start and stop valve 3 by oil return opening 3-1, spool 3-2, horizontal spring 3-3, ball valve 3-4, uprighting spring 3-5,
Control mouth 3-6, valve chest 3-7, valve import 3-8 and valve outlet 3-9 composition；Oil return opening 3-1, control mouth 3-6, valve import 3-8, valve
Outlet 3-9 is arranged on valve chest 3-7, and valve import 3-8 and valve outlet 3-9 are arranged vertically on the two sides of valve chest 3-7, center
Line alignment；Uprighting spring 3-5 carries ball valve 3-4 and is encapsulated in spool 3-2, and two outsides of uprighting spring 3-5 and ball valve 3-4 are
There is via hole, there is another through hole parallel with via hole on spool 3-2；The left side of spool 3-2 is connected with horizontal spring 3-3,
The left side of oil return opening 3-1 face spool 3-2；The right side of spool 3-2 and the inner cavity of valve chest 3-7 form oil cylinder, control mouth
3-6 face spool 3-2.
The course of work of the automatic start-stop valve of servo-hydraulic pumping system is as follows:
When hydraulic pump 5 does not work, spool 3-2 is maintained at the state being not turned on, internal uprighting spring in start and stop valve 3
3-5 carries ball valve 3-4 and blocks valve import 3-8；When carrying out oiling into hydraulic pump 5, motor 8 drives hydraulic pump 5 to start to work；
When pump 5 starts running, when entering start and stop valve 3 of valve import 3-8 is passed through in oil suction from fuel tank 2, since spool 3-2 is not led
Logical, oil liquid can not be reached in hydraulic pump 5 by start and stop valve 3；There is an oil return opening 3-1 in the left side of start and stop valve 3, in order in valve
Oil is discharged in fuel tank 2, prevents from generating buffer brake to horizontal spring 3-3 in inside, and oil circuit can not be connected；The oil of injection is logical
It crosses work operating generation pressure difference in pump and is transported to oil outlet pipe 6, pressure makes conveying oil in oil outlet pipe 6 by control pipeline
7 are supplied to working machine 9；When being supplied to working machine 9, some oil enters the control piper 7 that start and stop valve 3 is connected,
Pressure makes to convey oil into control mouth 3-6；It fast moves, is opening to the left when hydraulic drive spool 3-2 squeezes horizontal spring 3-3
Can also oil be expelled back into fuel tank 2 by stopping the oil return opening 3-1 in valve 3, and the via hole of the other side of spool 3-2 is connected to oil inlet pipe 4
When, so that entire oil circuit conducting；Hydraulic pump 5 operates, and after the oil of fuel tank 2 continues through filter 1, passes through the conducting of start and stop valve 3
It in oil circuit suction pump, and is delivered in working machine 9, realizes the work of working machine 9；When motor 8 stops, the operating in pump stops
Only, with the pressure difference ends of generation, horizontal spring 3-3 pushes spool 3-2 to be moved to limit on the right-right-hand limit position, the vertical bullet of spool 3-2
Spring 3-5 and ball valve 3-4 close oil circuit, prevent 5 oil liquid of pump from flowing back into fuel tank 2, realize the automatic switch to oil circuit.
Claims (3)
1. a kind of automatic start-stop valve of servo-hydraulic pumping system, by filter (1), fuel tank (2), start and stop valve (3), oil inlet pipe
(4), (5), oil outlet pipe (6), control piper (7), motor (8), working machine (9) composition are pumped；Motor (8) is driven by shaft coupling
Pump (5) operating；Pump (5) is connect by oil outlet pipe (6) with working machine (9)；Filter (1) is mounted on the oil inlet pipe of pump (5)
(4) end far from pump (5)；Filter (1) and start and stop valve (3) are mounted in fuel tank (2), and are immersed in oil liquid always；Start and stop
Valve (3) is mounted on filter (1) and pumps in the oil inlet pipe (4) between (5)；Pass through between oil outlet pipe (6) and start and stop valve (3)
Control piper (7) connection.
2. the automatic start-stop valve of servo-hydraulic pumping system according to claim 1, start and stop valve (3) is by oil return opening (3-1), valve
Core (3-2), horizontal spring (3-3), ball valve (3-4), uprighting spring (3-5), control mouth (3-6), valve chest (3-7), valve import
(3-8) and valve outlet (3-9) composition；Oil return opening (3-1), control mouth (3-6), valve import (3-8), valve outlet (3-9) are arranged in
On valve chest (3-7), valve import (3-8) and valve outlet (3-9) are arranged vertically on the two sides of valve chest (3-7), center line pair
Together；Uprighting spring (3-5) carries ball valve (3-4) and is encapsulated in spool (3-2), and the two of uprighting spring (3-5) and ball valve (3-4)
There is via hole in outside, there is another through hole parallel with via hole on spool (3-2)；The left side of spool (3-2) and horizontal bullet
Spring (3-3) connection, the left side of oil return opening (3-1) face spool (3-2)；The right side of spool (3-2) and valve chest (3-7)
Inner cavity forms oil cylinder, control mouth (3-6) face spool (3-2).
3. the automatic start-stop valve of servo-hydraulic pumping system according to claim 1, it is characterised in that: in start and stop valve (3)
The negative pressure automatic open-close that spool (3-2) can be generated by hydraulic pump itself work prevents the oil suction road oil return of hydraulic pump from occurring
Inflatable chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920049676.8U CN209444657U (en) | 2019-01-13 | 2019-01-13 | The automatic start-stop valve of servo-hydraulic pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920049676.8U CN209444657U (en) | 2019-01-13 | 2019-01-13 | The automatic start-stop valve of servo-hydraulic pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444657U true CN209444657U (en) | 2019-09-27 |
Family
ID=68017654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920049676.8U Expired - Fee Related CN209444657U (en) | 2019-01-13 | 2019-01-13 | The automatic start-stop valve of servo-hydraulic pumping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555752A (en) * | 2019-01-13 | 2019-04-02 | 陕西理工大学 | A kind of servo-hydraulic pumping system and automatic start-stop valve |
| CN113915528A (en) * | 2021-10-28 | 2022-01-11 | 广州文冲船厂有限责任公司 | Pressure distribution system |
-
2019
- 2019-01-13 CN CN201920049676.8U patent/CN209444657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555752A (en) * | 2019-01-13 | 2019-04-02 | 陕西理工大学 | A kind of servo-hydraulic pumping system and automatic start-stop valve |
| CN113915528A (en) * | 2021-10-28 | 2022-01-11 | 广州文冲船厂有限责任公司 | Pressure distribution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 |