CN105649911A - Hydraulic pushing reciprocating single-cylinder pump - Google Patents
Hydraulic pushing reciprocating single-cylinder pump Download PDFInfo
- Publication number
- CN105649911A CN105649911A CN201610132109.XA CN201610132109A CN105649911A CN 105649911 A CN105649911 A CN 105649911A CN 201610132109 A CN201610132109 A CN 201610132109A CN 105649911 A CN105649911 A CN 105649911A
- Authority
- CN
- China
- Prior art keywords
- oil
- piston rod
- way
- valve
- pump
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
- F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
- F04B9/1056—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor with fluid-actuated inlet or outlet valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1085—Valves; Arrangement of valves having means for limiting the opening height
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a hydraulic pushing reciprocating single-cylinder pump. The pump comprises a pump head and a two-way oil cylinder; and the inner end of a piston rod of the two-way oil cylinder extends into the pump head. The pump is characterized by further comprising a two-position four-way valve and a hydraulic control reversing valve communicated through an oil pipe; two oil outlets of the hydraulic control reversing valve are respectively connected with two oil inlets of the two-way oil cylinder; a valve rod of the two-position four-way valve extends out of a valve body, and is connected with a travel limiting section parallel to a piston rod of the two-way oil cylinder; the piston rod and the travel limiting section are connected through a pulling plate; and the pulling plate is limited at the two ends of the travel limiting section to reverse an oil outlet path of the two-position four-way valve and to reverse an oil outlet path of the hydraulic control reversing valve, so that the oil inlet reversing of the two-way oil cylinder is realized. The pump has the advantages of simple structure, few fault points, high energy conversion rate and good energy conservation. The two-position four-way valve and the hydraulic control reversing valve serve as control devices to reduce the requirement on the hydraulic oil grade so as to prevent influence of the hydraulic oil pollution on normal equipment operation.
Description
Technical field
The present invention relates to a kind of simplex pump, particularly relate to a kind of hydraulic thrust ejector half reciprocation single piston pump.
Background technology
Along with expanding economy, the mankind for natural every exploration continual development of each transformation, various main equipment popularization and applications, and oil cylinder suffers from the effect do not replaced in many equipment. some equipment need oil cylinder have the function of commutation, such as verifying sub-terrain mines material storage capacity, verify in the activities such as groundwater level and need to hole, injection hole sealing, needs apply to commutation oil cylinder, and existing oil cylinder is many realizes automatic reverse by electric-control system or electrohydraulic control system, the suitability bad when bad environments of this reversing control system, such as adopt worm and gear or gear crank as the power of commutation, there is structure complexity, the defect that trouble point is many, and the deadweight of this grouting pump is heavier, not readily transportable being also not easy to is safeguarded, the energy transformation ratio of mechanical pump is low, energy saving is bad, conventional grouting pump also has cylinder band ejector half, utilizes cylinder commutation often also to need configuration air compression plant due to compressed-air power deficiency when underground work, increases cost, increase trouble point and too increase volume, not readily transportable, some oil cylinder is also pure hydraulic control system, however it is necessary that at least two power source, and oil circuit is complex, and cost of manufacture is higher.
Summary of the invention
It is an object of the invention to provide a kind of auto reversive hydraulic thrust ejector half reciprocation single piston pump of piston rod.
The invention discloses a kind of hydraulic thrust ejector half reciprocation single piston pump, including pump head and two-way cylinder, piston rod the inner of two-way cylinder is stretched in pump head, it also includes two position four-way valves and the pilot operated directional control valve that are connected by oil pipe, two oil-outs of pilot operated directional control valve are connected with two oil-ins of two-way cylinder respectively, the valve rod of two position four-way valves stretches out valve body and is externally connected with the stroke limit section being arranged in parallel with described two-way cylinder piston rod, connected by swinging plate between piston rod and stroke limit section, swinging plate commutates in the spacing fuel-displaced path making two position four-way valves at stroke limit section two ends, commutate in the fuel-displaced path making pilot operated directional control valve, thus realizing the oil-feed commutation of two-way cylinder.
As preferably, described stroke limit section includes two spacing heads and cylindrical bar, and two spacing heads lay respectively at the two ends of cylindrical bar, and the lower end of described swinging plate is placed on cylindrical bar, and swinging plate can along cylindrical bar back and forth movement between two spacing heads.
As preferably, the outer end of described two-way cylinder piston rod is provided with the shaft shoulder, and the outermost end of piston rod is thread head.
As preferably, the shaft shoulder place of described two-way cylinder piston rod is fixed on by locking nut in the upper end of described swinging plate.
As preferably, being additionally provided with rectangular slab between described swinging plate and described locking nut, rectangular slab is provided with the lead parallel with piston rod, and the other end of lead is fixed on described pump head.
As preferably, described lead has two, is arranged symmetrically with about described piston rod.
Hydraulic oil is pumped in pilot operated directional control valve and two position four-way valves by oil pump by use procedure of the present invention simultaneously; Pumping into the hydraulic oil in pilot operated directional control valve makes the piston rod of two-way cylinder move (setting this direction as forward) along a direction, makes pump head pulp; When piston rod movement and drive the spacing head that swinging plate moves on swinging plate and spacing section of two position four-way valve valve rod up strokes to touch, now two position four-way valves switch out oil circuit path, the oil-feed path of switching pilot operated directional control valve, the vent line footpath in pilot operated directional control valve is made to switch, thus switching the oil-feed path of two-way cylinder, make the piston rod adverse movement of two-way cylinder, complete the automatic reverse of piston rod.
The present invention is by connecting the valve rod of the piston rod of two-way cylinder and two position four-way valves by swinging plate, and make swinging plate move back and forth in the stroke limit section of valve rod, control the fuel-displaced path of two position four-way valves, thus controlling the fuel-displaced path of pilot operated directional control valve, namely the oil-feed path of two-way cylinder is controlled, thus realizing the automatic reverse of piston rod. And there is simple in construction, trouble point is few, energy transformation ratio is high, the advantage of good energy saving property.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of one embodiment of the invention. (oil pipe is not drawn into).
Fig. 2 is the side-looking enlarged diagram (oil pipe is not drawn into) of the present embodiment.
Fig. 3 is the oil circuit schematic diagram of the present embodiment.
Diagram sequence number:
1 pump head, 2 liang of position four-way valves, 3 pilot operated directional control valves, 4 rectangular slabs, 5 leads,
6 swinging plates, 7 two-way cylinders, 71 piston rods, 21 stroke limit sections, 211 spacing heads, 212 cylindrical bars.
Detailed description of the invention
As Figure 1-3, present embodiment discloses a kind of hydraulic thrust ejector half reciprocation single piston pump, including pump head 1, two position four-way valve 2, pilot operated directional control valve 3 and two-way cylinder 7, two position four-way valves 2 are connected by oil pipe with pilot operated directional control valve 3; Wherein piston rod 71 the inner of two-way cylinder 7 is stretched in pump head 1, and outer end is provided with the shaft shoulder, and the outermost end of piston rod is thread head. Rectangular slab 4 and swinging plate 6 ecto-entad are sequentially arranged outside the shaft shoulder of piston rod 71, are locked by locking nut. Rectangular slab 4 is provided with two leads 5, and two leads 5 are arranged about rectangular slab 4 length direction centrosymmetry, parallel with piston rod 71.
The valve rod of two position four-way valves 2 stretches out valve body and is externally provided with the stroke limit section 21 being arranged in parallel with two-way cylinder 7 piston rod 71, stroke limit section includes two spacing 211 and cylindrical bar 212, two spacing 211 two ends laying respectively at cylindrical bar 212, the lower end of swinging plate 6 is placed on cylindrical bar 212, and swinging plate 6 can along cylindrical bar 212 back and forth movement between two spacing 211.Controlling the fuel-displaced path of two position four-way valves 2, thus controlling the fuel-displaced path of pilot operated directional control valve 3, namely controlling the oil-feed path of two-way cylinder 7, thus realizing the automatic reverse of piston rod 71.
Hydraulic oil is in use pumped in pilot operated directional control valve and two position four-way valves by oil pump by the present embodiment simultaneously; Pumping into the hydraulic oil in pilot operated directional control valve makes the piston rod of two-way cylinder move (setting this direction as forward) along a direction, makes pump head pulp; When piston rod movement and drive the spacing head that swinging plate moves on swinging plate and spacing section of two position four-way valve valve rod up strokes to touch, now two position four-way valves switch out oil circuit path, the oil-feed path of switching pilot operated directional control valve, the vent line footpath in pilot operated directional control valve is made to switch, thus switching the oil-feed path of two-way cylinder, make the piston rod adverse movement of two-way cylinder, complete the automatic reverse of piston rod. So there is simple in construction, trouble point is few, energy transformation ratio is high, the advantage of good energy saving property
Meanwhile, by two position four-way valves and pilot operated directional control valve as controlling device, reduce the equipment requirement for hydraulic oil grade, it is to avoid cause the situation of blocking due to hydraulic oil pollution, it is ensured that equipment properly functioning.
By connecting rectangular slab outside the piston rod of oil cylinder, rectangular slab arranges the lead parallel with piston rod, strengthens the kinetic stability of piston rod.
It is set to two by being directed to post, is arranged symmetrically with about piston rod, further enhance the kinetic stability of piston rod.
By the outer end at piston rod, the shaft shoulder is set, the outermost end of piston rod is designed as thread head, the thickness being smaller than rectangular slab and swinging plate between the shaft shoulder and described thread head and, rectangular slab and swinging plate ecto-entad are sequentially arranged outside the shaft shoulder, by corresponding nut check, convenient connection.
Claims (6)
1. a hydraulic thrust ejector half reciprocation single piston pump, including pump head and two-way cylinder, piston rod the inner of two-way cylinder is stretched in pump head, it is characterized in that: it also includes two position four-way valves and the pilot operated directional control valve that are connected by oil pipe, two oil-outs of pilot operated directional control valve are connected with two oil-ins of two-way cylinder respectively, the valve rod of two position four-way valves stretches out valve body and is externally connected with the stroke limit section being arranged in parallel with described two-way cylinder piston rod, connected by swinging plate between piston rod and stroke limit section, swinging plate commutates in the spacing fuel-displaced path making two position four-way valves at stroke limit section two ends, commutate in the fuel-displaced path making pilot operated directional control valve, thus realizing the oil-feed commutation of two-way cylinder.
2. hydraulic thrust ejector half reciprocation single piston pump according to claim 1, it is characterized in that: described stroke limit section includes two spacing heads and cylindrical bar, two spacing heads lay respectively at the two ends of cylindrical bar, the lower end of described swinging plate is placed on cylindrical bar, and swinging plate can along cylindrical bar back and forth movement between two spacing heads.
3. hydraulic thrust ejector half reciprocation single piston pump according to claim 1, it is characterised in that: the outer end of described two-way cylinder piston rod is provided with the shaft shoulder, and the outermost end of piston rod is thread head.
4. hydraulic thrust ejector half reciprocation single piston pump according to claim 3, it is characterised in that: the shaft shoulder place of described two-way cylinder piston rod is fixed on by locking nut in the upper end of described swinging plate.
5. hydraulic thrust ejector half reciprocation single piston pump according to claim 3, it is characterized in that: between described swinging plate and described locking nut, be additionally provided with rectangular slab, rectangular slab is provided with the lead parallel with piston rod, and the other end of lead is fixed on described pump head.
6. hydraulic thrust ejector half reciprocation single piston pump according to claim 5, it is characterised in that: described lead has two, is arranged symmetrically with about described piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132109.XA CN105649911A (en) | 2016-03-09 | 2016-03-09 | Hydraulic pushing reciprocating single-cylinder pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132109.XA CN105649911A (en) | 2016-03-09 | 2016-03-09 | Hydraulic pushing reciprocating single-cylinder pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105649911A true CN105649911A (en) | 2016-06-08 |
Family
ID=56492402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610132109.XA Pending CN105649911A (en) | 2016-03-09 | 2016-03-09 | Hydraulic pushing reciprocating single-cylinder pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105649911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019068244A1 (en) * | 2017-10-06 | 2019-04-11 | 李利 | Steady flow hydraulic pump and steady flow transmission system using same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1498614A2 (en) * | 2003-07-18 | 2005-01-19 | Young & Franklin, Inc. | Electro-hydrostatic actuator with a failsafe system |
| CN101185979A (en) * | 2006-11-17 | 2008-05-28 | 田立辉 | Horizontal broacher |
| CN101638980A (en) * | 2008-07-30 | 2010-02-03 | 徐洪德 | Full-balance hydraulic transmission oil sucking machine |
| CN202402236U (en) * | 2011-11-17 | 2012-08-29 | 李镇明 | Driving lever type reversing mechanism for hydraulic grouting pump |
| CN104712594A (en) * | 2015-03-06 | 2015-06-17 | 长沙伟诺机电有限公司 | Coating supercharging device |
| CN205478140U (en) * | 2016-03-09 | 2016-08-17 | 湖南景翔泵业有限公司 | Reciprocating type simplex pump of hydraulic pressure repulsive -type maglev |
-
2016
- 2016-03-09 CN CN201610132109.XA patent/CN105649911A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1498614A2 (en) * | 2003-07-18 | 2005-01-19 | Young & Franklin, Inc. | Electro-hydrostatic actuator with a failsafe system |
| CN101185979A (en) * | 2006-11-17 | 2008-05-28 | 田立辉 | Horizontal broacher |
| CN101638980A (en) * | 2008-07-30 | 2010-02-03 | 徐洪德 | Full-balance hydraulic transmission oil sucking machine |
| CN202402236U (en) * | 2011-11-17 | 2012-08-29 | 李镇明 | Driving lever type reversing mechanism for hydraulic grouting pump |
| CN104712594A (en) * | 2015-03-06 | 2015-06-17 | 长沙伟诺机电有限公司 | Coating supercharging device |
| CN205478140U (en) * | 2016-03-09 | 2016-08-17 | 湖南景翔泵业有限公司 | Reciprocating type simplex pump of hydraulic pressure repulsive -type maglev |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019068244A1 (en) * | 2017-10-06 | 2019-04-11 | 李利 | Steady flow hydraulic pump and steady flow transmission system using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |