CN208153313U - A kind of high pressure maintaining air-driven hydraulic pump - Google Patents
A kind of high pressure maintaining air-driven hydraulic pump Download PDFInfo
- Publication number
- CN208153313U CN208153313U CN201820405073.2U CN201820405073U CN208153313U CN 208153313 U CN208153313 U CN 208153313U CN 201820405073 U CN201820405073 U CN 201820405073U CN 208153313 U CN208153313 U CN 208153313U
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- China
- Prior art keywords
- hydraulic pump
- pressure maintaining
- oil
- cabinet
- air
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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
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000003584 silencer Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 85
- 239000007788 liquid Substances 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 7
- 244000144985 peep Species 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010572 single replacement reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model relates to hydraulic pump technical fields, a kind of high pressure maintaining air-driven hydraulic pump is disclosed, including cabinet, Box Cover, hydraulic seat and foot pedal composition, the cabinet and Box Cover are tightly connected, the cabinet is set as three sections, is separated by two sections of ladder walls of box house；The hydraulic seat is located on Box Cover, is provided with spring clip, oil inlet and outlet and silencer；The foot pedal is located at air-driven hydraulic pump topmost；The box house is made of cylinder portion and pump valve part.The utility model is distinguished by rationalizing to body structure, is simplified cylinder portion and pump valve part installation procedure, is improved cabinet space utilization rate；Meanwhile the pressure maintaining steel ball big using diameter, pressure maintaining performance is promoted, has the characteristics that pressure maintaining performance is good, pressure output is big, Portable durable.
Description
Technical field
The utility model relates to hydraulic pump technical fields, are a kind of high pressure maintaining air-driven hydraulic pumps specifically.
Background technique
Air-driven hydraulic pump forms pump by the reciprocating motion of the pistons in air-driven hydraulic pump and inhales pressure difference, by hydraulic oil by hydraulic
Case is pumped to hydraulic cylinder, to realize the lift process of hydraulic cylinder.Compared to traditional electric hydraulic pump, air-driven hydraulic pump has clear
The clean energy, without the features such as electric spark and flame, use cost are cheap, small in size and product is light and handy, be widely used in metallurgy, machine
The fields such as tool, petrochemical industry, auto repair, particularly suitable underground coal mine have the occasion of requirement of explosion proof to use.
Currently, the use of air-driven hydraulic pump starts slowly to popularize, the relevant technologies have also obtained very fast, preferable development.
If the patent No. " 201710766096.6 " describes a kind of air-driven hydraulic pump, action sensitivity is high, pump oil effect is good；The patent No.
" 201510140499.0 " describe a kind of liquid self-feeding air-driven hydraulic pump with time liquid function, by air pressure ontology, gas piston, squeeze
Press piston rod, oil pressure ontology and oil outlet one-way valve design in oil storage box, with the functional unification of both hydraulic pump and oil storage box
Feature；The patent No. " 201610495517.1 " describes a kind of air-driven hydraulic pump, replaces leaf using gear type structure air motor
Slice structure greatly improves the airtight performance of equipment, extends service life of equipment.Although about air-driven hydraulic pump patent compared with
It is more, but there is no relevant report for the improved technology in terms of air-driven hydraulic pump pressure maintaining.In fact, currently on the market pneumatic
It is bad mostly to there is pressure maintaining performance in hydraulic pump, provides that hydraulic pressure is inadequate, greatly limits the application of air-driven hydraulic pump.
Utility model content
The purpose of the utility model is to overcome deficiencies in the prior art, provide a kind of high pressure maintaining air-driven hydraulic pump, tool
There is the features such as pressure maintaining performance is good, pressure output is big, Portable durable, it, can maximum journey in the hydraulic pump of equal volume size
Degree provides hydraulic power.It is proved by production practices, the high pressure maintaining air-driven hydraulic pump of the utility model is in existing production technology item
Under part, overall volume maximum can accomplish to be greater than 1.0m3, can reach maximum output pressure greater than 70Mpa, it is existing about to compare market
The maximum output pressure of 50Mpa improves at least 50%, has expanded the application field of air-driven hydraulic pump significantly.
To achieve the goals above, the utility model takes technical solution below to be achieved：A kind of high pressure maintaining is pneumatic
Hydraulic pump, including cabinet, Box Cover, hydraulic seat and foot pedal composition, the cabinet and Box Cover are tightly connected, are included in all
Cabinet cover gab junction is provided with sealing ring, and the inner surface that Box Cover is contacted with cabinet inlays sealing rubber pad；The case
Body is set as three sections, is separated by two sections of ladder walls of box house, and box house is provided with bolt column, the bolt capital
Portion is provided with bolt hole, and Box Cover is fixed on cabinet by bolt；The hydraulic seat is arranged on Box Cover, sets on hydraulic seat
It is equipped with spring clip；The foot pedal is located at air-driven hydraulic pump topmost；Air inlet valve block is provided with above the Box Cover, it is described
Air inlet valve block includes air inlet, pressure spring and valve rod；The box house is made of cylinder portion and pump valve part, the cylinder part
Dividing includes cylinder barrel, piston system, spool and reset spring, and the piston system is provided with independent gas piston, the piston system
System is integrally located in the cylinder barrel, and the reseting spring sleeve is on the spool；The pump valve part includes oil pressure valve block, inhales
Oil system and defuelling system composition, oil pressure valve block connection oil absorption system and defuelling system, the oil absorption system and drain the oil and are
System passes through lateral oil circuit hole connection, the stifled oily steel ball closing in lateral oil circuit hole right side；The oil absorption system includes oil sucting one-way valve
With pressure maintaining steel ball, the oil sucting one-way valve bottom is immersed in hydraulic oil, using being detachably connected and fixed in the oil pressure valve block
Bottom, and be connected to by oil discharge passage with pressure maintaining steel ball；The defuelling system includes fuel outlet valve and bar of draining the oil, the bar top of draining the oil
Portion is contacted with foot pedal gearing, cooperates the valve rod of air inlet valve block, is completed the feed flow of air-driven hydraulic pump and is returned liquid work.
As an improvement the ladder wall of the cabinet of the high pressure maintaining air-driven hydraulic pump is U-shaped structure.
As an improvement the bolt column quantity of the cabinet of the high pressure maintaining air-driven hydraulic pump is 4 ~ 12.
As an improvement the cabinet of the high pressure maintaining air-driven hydraulic pump is provided with liquid level peep hole, liquid level observes hole location
At the 1/3 ~ 2/3 of cabinet total height.
As an improvement being provided with silencer on the hydraulic seat of the high pressure maintaining air-driven hydraulic pump, silencer is connected to
Hydraulic pump vibration sounding position.
As an improvement the spring clip on the hydraulic seat of the high pressure maintaining air-driven hydraulic pump is solid by hexagon socket head cap screw
It is scheduled on hydraulic seat.
As an improvement being provided with symmetrical grooves inside the cylinder barrel of the high pressure maintaining air-driven hydraulic pump.
As an improvement the pressure maintaining steel ball size of the high pressure maintaining air-driven hydraulic pump is 8 ~ 15mm.
As an improvement the oil pressure valve block of the high pressure maintaining air-driven hydraulic pump uses high-strength aluminum alloy material, through squeezing
Molded technique is prepared.
As an improvement the foot pedal and cabinet of the high pressure maintaining air-driven hydraulic pump are aluminum alloy material.
A kind of high pressure maintaining air-driven hydraulic pump described in the utility model, structure is simple, and air-tightness is good, can be realized high pressure
The output of value；Sealing rubber pad is inlayed in cabinet interior surface, increases the air-tightness of hydraulic pump entirety, effectively prevent air, powder
The impurity such as dirt and liquid enter cabinet；Core component of the oil pressure valve block as air-driven hydraulic pump, subjects the fast reciprocating of valve rod
Impact, although common steel or stainless steel material hardness are high, processing and material cost are high, and under the action of compressed air
It is oxidizable to get rusty, oil circuit is polluted, causes hydraulic pump whole service life not grown, using high-strength aluminum alloy material, and through squeezing
Moulding process is prepared, and reduces oil pressure valve block difficulty of processing, and clean oil circuit, greatly improves air-driven hydraulic pump use
Service life also mitigates the overall weight of hydraulic pump；Cylinder barrel uses internal recessing structure, improves the air-tightness of cylinder barrel,
It ensure that the patency that piston moves in cylinder, while largely simplifying the structure of cylinder barrel.
Compared to existing air-driven hydraulic pump, characteristic possessed by the high pressure maintaining air-driven hydraulic pump of the utility model is exactly pressure maintaining
Performance is good, and by the way that the rationalization of hydraulic pump cabinet is divided into three sections, cylinder portion and pump valve part are pressed height, structure not same district
It does not place, simplifies installation procedure, while improving cabinet space utilization rate, reduce box volume, for improving pressure maintaining performance
Also play key effect；Oil sucting one-way valve in oil absorption system is provided separately within body base, solves since oil suction is unidirectional
The problem of defective valve causes entire pump valve part to be replaced, and only need simply to replace oil sucting one-way valve；Pressure maintaining steel ball passes through fuel-displaced
Channel is connected to oil sucting one-way valve, and after hydraulic oil output, the pressure maintaining steel ball high using hardness, diameter is big effectively prevents oil
The reduction of pressure improves the pressure maintaining performance of hydraulic pump；Using the design of liquid level peep hole, liquid inside hydraulic pump can be observed at any time
Pressure oil oil mass situation, increases and decreases oil mass in time, while also whether observable oil is pure.Utilize the rationalization of body structure and corresponding
The improvement of component, the high pressure maintaining air-driven hydraulic pump of the utility model can convert the compressed air of minimum to maximized hydraulic
Output pressure, through client using proof, admission pressure requirement can be down to 0.6Mpa, and output pressure is up to 70MPa or more；Separately
Outside, product uses full-aluminum alloy, and oil circuit cleaning is attractive and durable, and light is easy to carry about with one.
Detailed description of the invention
Fig. 1 is the structure sectional view of the high pressure maintaining air-driven hydraulic pump of the utility model；
Fig. 2 is the main view of the high pressure maintaining air-driven hydraulic pump of the utility model；
Fig. 3 is the top view of the high pressure maintaining air-driven hydraulic pump of the utility model；
Fig. 4 is the cabinet main view of the high pressure maintaining air-driven hydraulic pump of the utility model；
Fig. 5 is the cabinet top view of the high pressure maintaining air-driven hydraulic pump of the utility model.
In Fig. 1-5：1- hexagon socket head cap screw；2- spring clip；3- foot pedal；4- silencer；5- air inlet valve block；6- valve rod；
7- pressure spring；8- air inlet；9- Box Cover；10- gas piston；11- cabinet；12- liquid level peep hole；13- piston system；14- cylinder
Cylinder；15- reset spring；16- spool；17- oil pressure valve block；18- oil sucting one-way valve；19- oil discharge passage；20- pressure maintaining steel ball；21-
Lateral oil circuit hole；The stifled oily steel ball of 22-；23- fuel outlet valve；24- drains the oil bar；25- rubber pad；26- hydraulic seat；27- oil inlet and outlet；
28- bolt；29- bolt column；30- ladder wall；31- bolt hole.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing：One kind as shown in Fig. 1 ~ 5
High pressure maintaining air-driven hydraulic pump, including cabinet 11, Box Cover 9, hydraulic seat 26 and foot pedal 3 form, the cabinet 11 and Box Cover 9
It is tightly connected, is included in all openings of Box Covers 9 junction and is provided with sealing ring, the interior table that Box Cover 9 is contacted with cabinet 11
Inlay sealing rubber pad 25 in face；The cabinet 11 is set as three sections, is separated by two sections of ladder walls 30 of box house, described
Ladder wall 30 is U-shaped structure, and cabinet 11 is internally provided with bolt column 29, and 29 quantity of bolt column is 6, and top is provided with bolt
Box Cover 9 is fixed on cabinet 11 by hole 31 by bolt 28, and the cabinet 11 is provided with liquid level peep hole 12, liquid level observation
Hole 12 is located at the 3/5 of cabinet total height；The hydraulic seat 26 is arranged on Box Cover 9, is provided with springlock on hydraulic seat 26
Piece 2, the spring clip 2 are fixed on hydraulic seat by hexagon socket head cap screw 1；It is provided with silencer 4 on the hydraulic seat 26, is disappeared
Sound device 4 is connected to hydraulic pump vibration sounding position；The foot pedal 3 is located at air-driven hydraulic pump topmost, and material is aluminium alloy；Institute
It states Box Cover 9 and is provided with air inlet valve block 5 above, the air inlet valve block 5 includes air inlet 8, pressure spring 7 and valve rod 6；The cabinet 11
Inside is made of cylinder portion and pump valve part, and the cylinder portion includes cylinder barrel 14, piston system 13, spool 16 and resets
Spring 15 is provided with symmetrical grooves inside the cylinder barrel 14, and the piston system 13 is provided with independent gas piston 10, the piston
System 13 is integrally located in the cylinder barrel 14, and 15 sets of the reset spring on the spool 16；The pump valve part includes
Oil pressure valve block 17, oil absorption system and defuelling system composition, the oil pressure valve block 17 uses high-strength aluminum alloy material, through being squeezed into
Type technique is prepared, and the oil pressure valve block 17 connects oil absorption system and defuelling system, and the oil absorption system and defuelling system are logical
It crosses lateral oil circuit hole 21 to connect, be closed on the right side of lateral oil circuit hole 21 with stifled oily steel ball 22；The oil absorption system includes that oil suction is unidirectional
Valve 18 and pressure maintaining steel ball 20,20 diameter of pressure maintaining steel ball are 12mm, and 18 bottom of oil sucting one-way valve is immersed in hydraulic oil,
It is connected to using being detachably connected and fixed in 17 bottom of oil pressure valve block, and by oil discharge passage 19 with pressure maintaining steel ball 20；It is described
Defuelling system includes fuel outlet valve 23 and bar 24 of draining the oil, and 24 top of bar of draining the oil is contacted with the gearing of foot pedal 3, cooperates air inlet valve block
Valve rod 6, complete air-driven hydraulic pump feed flow and return liquid work.
In the present embodiment, further, the diameter of the pressure maintaining steel ball 20 is 14mm.
In the present embodiment, further, the silencer 4 is mounted on hydraulic seat 2, and is connected to pump valve portion by connecting rod
Valve block in point, since the shock of reciprocating motion of the pistons issues loud noise, silencer is directly connected to noise and issues position valve block,
The good effect except flat of making an uproar can be played.
In the present embodiment, further, the spring clip 2 is connected with the support of foot pedal 3, and spring clip 2 is in foot pedal 3
When off-load, foot pedal 3 can be lockked, automatic deloading is realized, reduces handling time.
The high pressure maintaining air-driven hydraulic pump working principle of the utility model：When gently trampling sole 3, through gs-oil separator（Subtract
Few gas moisture content）Compressed gas be passed through air inlet valve block 5 from air inlet 8, by the downward effect compression press spring 7 of valve rod 6, beat
It drives the sealing ring junction in air valve block 5 into, so that gas can smoothly enter into piston system 13, and gas piston 10 is pushed to transport forward
Dynamic, when piston system 13 moves to the symmetrical grooves of cylinder barrel 14,13 end pressure of piston system is reduced rapidly, until and pump valve
End pressure is identical, and at this time under the action of reset spring 15, piston system 13 moves rapidly backward, and the gas entered at this time
High pressure can be formed in piston end again, push piston system 13 to travel forward, loop back and forth like this, the air of pump valve part is continuous
Compression, oil pressure increase, and form vacuum, so that oil sucting one-way valve 18 is opened, hydraulic oil is up inhaled through oil discharge passage 19 in cabinet, inhale
To oil inlet and outlet 27, hydraulic cylinder is then entered by oil pipe, completes the lift of hydraulic cylinder；When foot pedal 3 is floored, spring clip
2 lock foot pedal 3, and foot pedal 3 presses bar 24 of draining the oil, so that fuel outlet valve 23 is opened, hydraulic oil is flowed to by lateral oil circuit hole 21
Fuel outlet valve 23 is finally back to cabinet 11, and that completes hydraulic pump returns liquid unloading process.
Obviously, in practice it has proved that, for air-driven hydraulic pump other than making hydraulic cylinder lift and backhaul, more production applications are complete
After lift, stops feed flow and carry out pressure maintaining, to complete the work such as corresponding machine maintenance or production task.Therefore, work as completion
After the lift of predetermined distance, foot pedal 3 is unclamped, in order to make hydraulic cylinder not backhaul, need to continue to keep output pressure constant, need at this time
It wants air-driven hydraulic pump that there is good pressure maintaining performance, by the way that pressure maintaining steel ball 20 is arranged, increases pressure maintaining steel ball size to 8 ~ 15mm（It passes
Blanket insurance pressing steel balls only have 6 ~ 9mm）, effectively prevent hydraulic oil and flow back downwards, with 22 envelope of stifled oily steel ball on the right side of lateral oil circuit hole 21
It closes, hydraulic oil is also blocked in the closing of fuel outlet valve 23 in left side, to play good pressure holding effect.
The core component air inlet valve block 5 and oil pressure valve block 17 of the utility model are all made of high-strength aluminum alloy material, instead of
Traditional stainless steel or common aluminum alloy material replaces aluminium moldings formed therefrom technique, pole using the extrusion molding process of high temperature and pressure
The big quality for improving air-driven hydraulic pump, extends service life；Meanwhile phase has also been made in oil pressure valve block 17 in structure
It should improve, oil absorption system and defuelling system independent mutually can be arranged in oil pressure valve block, convenient for single replacement；Cabinet 11 is adopted
It is provided with ladder segmentation with full-aluminum alloy, while according to installation component structural, effectively increases cabinet space utilization rate,
Hydraulic pump pressure maintaining performance is improved, production cost is also correspondingly reduced.
The utility model can be summarized with others without prejudice to the concrete form of the spirit or central characteristics of the utility model.
Therefore, in all respects, the embodiment above of the utility model can only be considered the explanation to the utility model and
The utility model cannot be limited, with the comparable meaning and scope of claims of the utility model in any variation, all
It is considered as being included within the scope of the claims.
Claims (10)
1. a kind of high pressure maintaining air-driven hydraulic pump, including cabinet（11）, Box Cover（9）, hydraulic seat（26）And foot pedal（3）Composition,
It is characterized in that：The cabinet（11）With Box Cover（9）It is tightly connected, is included in all Box Covers（9）Opening junction is all provided with
It is equipped with sealing ring, Box Cover（9）With cabinet（11）The inner surface of contact inlays sealing rubber pad（25）；The cabinet（11）Setting
It is three sections, passes through two sections of ladder walls of box house（30）It is separated, cabinet（11）It is internally provided with bolt column（29）, bolt column
（29）Top is provided with bolt hole（31）, pass through bolt（28）By Box Cover（9）It is fixed on cabinet（11）On；The hydraulic seat（26）
It is arranged in Box Cover（9）On, hydraulic seat（26）On be provided with spring clip（2）；The foot pedal（3）Most positioned at air-driven hydraulic pump
Above；The Box Cover（9）It is provided with air inlet valve block above（5）, the air inlet valve block（5）Including air inlet（8）, pressure spring（7）
And valve rod（6）；The cabinet（11）Inside is made of cylinder portion and pump valve part, and the cylinder portion includes cylinder barrel
（14）, piston system（13）, spool（16）And reset spring（15）, the piston system（13）It is provided with independent gas piston
（10）, the piston system（13）It is integrally located at the cylinder barrel（14）It is interior, the reset spring（15）It covers in the spool
（16）On；The pump valve part includes oil pressure valve block（17）, oil absorption system and defuelling system composition, the oil pressure valve block（17）Even
Oil absorption system and defuelling system are connect, the oil absorption system and defuelling system pass through lateral oil circuit hole（21）Connection, lateral oil circuit hole
（21）The stifled oily steel ball in right side（22）Closing；The oil absorption system includes oil sucting one-way valve（18）With pressure maintaining steel ball（20）, described
Oil sucting one-way valve（18）Bottom is immersed in hydraulic oil, using being detachably connected and fixed in the oil pressure valve block（17）Bottom, and
Pass through oil discharge passage（19）With pressure maintaining steel ball（20）Connection；The defuelling system includes fuel outlet valve（23）With bar of draining the oil（24）, institute
State bar of draining the oil（24）Top and foot pedal（3）Contact is interlocked, the valve rod of air inlet valve block is cooperated（6）, complete the confession of air-driven hydraulic pump
Liquid and time liquid work.
2. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the ladder wall of the cabinet（30）For U
Type structure.
3. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the bolt column of the cabinet（29）Quantity
It is 4 ~ 12.
4. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the cabinet（11）It is provided with liquid level sight
Examine hole（12）, liquid level peep hole（12）At the 1/3 ~ 2/3 of cabinet total height.
5. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the hydraulic seat（26）On be provided with and disappear
Sound device（4）, silencer（4）It is connected to hydraulic pump vibration sounding position.
6. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the spring clip on the hydraulic seat
（2）Pass through hexagon socket head cap screw（1）It is fixed on hydraulic seat（26）On.
7. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the cylinder barrel（14）Inside is provided with pair
Claim groove.
8. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the pressure maintaining steel ball（20）Diameter be 8 ~
15mm。
9. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the oil pressure valve block（17）Using high-strength
Aluminum alloy material is spent, is prepared through extrusion forming process.
10. high pressure maintaining air-driven hydraulic pump according to claim 1, which is characterized in that the foot pedal（3）And cabinet（11）
For aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820405073.2U CN208153313U (en) | 2018-03-25 | 2018-03-25 | A kind of high pressure maintaining air-driven hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820405073.2U CN208153313U (en) | 2018-03-25 | 2018-03-25 | A kind of high pressure maintaining air-driven hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153313U true CN208153313U (en) | 2018-11-27 |
Family
ID=64393021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820405073.2U Expired - Fee Related CN208153313U (en) | 2018-03-25 | 2018-03-25 | A kind of high pressure maintaining air-driven hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208153313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555737A (en) * | 2019-01-23 | 2019-04-02 | 华茂机械(肇庆)有限公司 | A kind of locking pump for quick slider of punch oil cylinder locking |
| CN113653618A (en) * | 2021-10-20 | 2021-11-16 | 南通远威自动化设备有限公司 | Hydraulic pump assembly of medium-frequency quenching machine tool |
-
2018
- 2018-03-25 CN CN201820405073.2U patent/CN208153313U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555737A (en) * | 2019-01-23 | 2019-04-02 | 华茂机械(肇庆)有限公司 | A kind of locking pump for quick slider of punch oil cylinder locking |
| CN109555737B (en) * | 2019-01-23 | 2024-02-20 | 广东华茂精密制造股份有限公司 | Locking pump for locking slide block oil cylinder of quick punching machine |
| CN113653618A (en) * | 2021-10-20 | 2021-11-16 | 南通远威自动化设备有限公司 | Hydraulic pump assembly of medium-frequency quenching machine tool |
| CN113653618B (en) * | 2021-10-20 | 2022-03-18 | 南通远威自动化设备有限公司 | Hydraulic pump assembly of medium-frequency quenching machine tool |
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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: 20181127 |