CN102937087A - Plunger pump in double swash plate structure - Google Patents
Plunger pump in double swash plate structure Download PDFInfo
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- CN102937087A CN102937087A CN2012104236423A CN201210423642A CN102937087A CN 102937087 A CN102937087 A CN 102937087A CN 2012104236423 A CN2012104236423 A CN 2012104236423A CN 201210423642 A CN201210423642 A CN 201210423642A CN 102937087 A CN102937087 A CN 102937087A
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- plunger
- swash plate
- disk
- plunger valve
- pump
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- Details Of Reciprocating Pumps (AREA)
Abstract
The invention provides a plunger pump in a double swash plate structure. A major-diameter swash plate and a minor-diameter swash plate are fixedly arranged on a rotating shaft of a plunger pump body, the major-diameter swash plate is arranged on the upper portions of valve rods of a plunger valve group, and the minor-diameter swash plate is arranged on the lower portions of the valve rod heads of the plunger valve group; the major-diameter swash plate and the minor-diameter swash plate are provided with opposite slants but the same slope; and a disk is arranged on the minor-diameter swash plate, a plurality of holes are distributed around the disk in the same direction and matched with corresponding plunger valve rods, and the slant of the disk is the same with the slant and the slope of the minor-diameter swash plate. Springs outside the plunger valve rods of the plunger pump are replaced by the double swash plate structure for controlling reciprocation of the plunger valve rods, maintenance to the springs of the plunger valve rods is avoided thoroughly, not only potential risks can be eliminated, but also high-speed, low-noise and stable operation of the plunger pump can be maintained for a long time, and the service life of the pump body is prolonged.
Description
Technical field
The present invention relates to plunger pump, particularly a kind of two inclined plate structure plunger pump.
Background technique
Plunger pump is one of important device of engineering construction hydraulic equipment.Because the axial piston pump of prior art has lower column defects, as: oil suction and oil-releasing mechanism comprise that part is more, not only occupy larger volume, and installation difficulty is larger, and rate of fault is also higher.For this reason, the claimant has submitted respectively the patent application of " a kind of plunger pump of simple structure " and " combined simple plunger pump " to State Intellectual Property Office on November 08th, 2011, on March 20th, 2012; And all gone through to authorize.Above-mentioned patented technology is improved existing axial plunger pump structure, has removed part rapid wear assembly, has designs simplification, easy for installation, volume is little, cost of production is low, maintenance less, the advantage such as long service life.Particularly " combined simple plunger pump " obviously increased axial piston pump oil pump capacity, strengthened oil pressure, make plunger pump reaching under identical oil pump capacity, the oil pressure parameter prerequisite, reduced power consumption.Yet, the claimant is constantly finding in the practice, be arranged on the outer spring of each plunger valve rod, although the up and down operation to the plunger valve bar has key effect, but along with the operating time prolongs, hypodynamic defective will appear playing in spring inevitably, even the possibility of existence damage, this not only needs often to change maintaining, and as long as in case certain spring fracture all can cause the pressure transient of plunger pump, even the pressure release situation occurs, this is danger close for the hydraulic equipment under the former high pressure conditions operation, so there is potential safety hazard.
Summary of the invention
The present invention proposes a kind of two inclined plate structure plunger pump, purpose is by in the pump housing, the back and forth two inclined plate structure of operation of control plunger valve rod is set, replace the outer spring of each plunger valve rod of plunger pump, with the maintenance of thorough release to plunger valve bar spring, not only can eliminate safe hidden trouble, more can realize for a long time held stationary operation of plunger pump.
Technical solution of the present invention
The two inclined plate structure plunger pump that the present invention is alleged, with the something in common of patented technology " a kind of plunger pump of simple structure ", " combined simple plunger pump " structure be, in the pump housing, be provided with the plunger valve group, described plunger valve group is comprised of a plurality of plunger valves, each plunger valve mainly is made of valve rod and valve body again, valve body wall is provided with the oil extraction inclined hole, and the oil outlet of valve body connects pump housing oil pocket; The valve body bottom is provided with oil-sucking hole; Described plunger valve group or for single group or be two groups and two groups of many groups of above combinations.
Innovation of the present invention is, be fixedly installed large footpath swash plate and path swash plate on the described pump housing rotatingshaft, large footpath swash plate is positioned at the upper position of plunger valve group valve rod, the path swash plate is positioned at the lower position of plunger valve group valve rod valve head, described large footpath swash plate is oblique opposite with the path swash plate, and gradient is consistent; The top of described path swash plate is provided with disk, is laid with to the orientation such as the surrounding of disk a plurality of Durchgangshohle, each Durchgangshohle and the corresponding corresponding coupling of each plunger valve rod, and each plunger valve rod penetrates in each Durchgangshohle of disk; Described disk oblique oblique with the path swash plate and gradient is consistent.
Further technical solution of the present invention
Described pump housing rotatingshaft passes the core of large footpath swash plate and path swash plate, and fixing with two swash plates is connected.
The core of described disk is established the hole, and the free gap is arranged is enclosed within on the pump housing rotatingshaft.
Described each plunger valve rod penetrates respectively in each Durchgangshohle of disk, and is provided with the free gap, and disk is by the position of each Durchgangshohle between each plunger valve body upper end and plunger stem head.
Be provided with bearing between the described large footpath swash plate that rotates with pump housing rotatingshaft and each the plunger stem head; Be provided with bearing between the card of the described path swash plate that rotates with pump housing rotatingshaft and described disk.
Beneficial effect of the present invention
(1) the present invention has all advantages that " a kind of plunger pump of simple structure " compared with more traditional plunger pumps of patented technology such as " combined simple plunger pumps ", namely removed part rapid wear assembly, simplify the structure, make installation more convenient, also obviously increased axial piston pump oil pump capacity, strengthened oil pressure, make plunger pump reaching under identical oil pump capacity, the oil pressure parameter prerequisite, reduced power consumption.
(2) the present invention has replaced the structure of back and forth moving with easily damaged parts spring control plunger valve rod with the reciprocal operation of two inclined plate control plunger valve rod, has not only improved the Safety performance of plunger pump, and has made plunger pump can realize running up, and brings into play larger usefulness; Reduce simultaneously the noise of machine, prolonged working life.
Description of drawings
Accompanying drawing 1 is singly organized plunger valve group's longitudinal profile structural representation for the present invention;
Accompanying drawing 2 is organized plunger valve group's longitudinal profile structural representation more for the present invention.
Embodiment
As shown in Figure 1, 2,
The plunger valve group 1 that the present invention arranges in the pump housing, centered by the power input shaft 2 of pump housing power equipment (such as motor, diesel engine, petrol engine etc.), be provided with only represent corresponding a pair of two among the plunger valve 3(Fig. 1 that lays in the orientation such as a plurality of).Each plunger valve mainly is comprised of valve rod 31 and valve body 32.Valve body wall is provided with oil extraction inclined hole 33, and the oil extraction inclined hole connects the oil pocket 5 that oil drain passage leads to the pump housing, and oil pocket leads to the hydraulic equipment (not shown) by total oil exit pipe 4; The bottom of valve body is provided with oil-sucking hole 34.Oil extraction inclined hole lower end is provided with boss 331 with the place of communicating, valve body chamber, is placed with oil drainage hole steel ball 332 on the boss; Oil-sucking hole 34 is provided with concave station 341, is placed with oil-sucking hole steel ball 342 on the concave station.
The present invention and power input shaft 2 are connected with large footpath swash plate 7, path swash plate 8.The inclined-plane 71 of large footpath swash plate 7 is pressed in during rotation on the stem head of each plunger valve towards the below.The inclined-plane 81 of path swash plate 8 plays a supportive role to disk 9 during rotation towards the top, and disk 9 imposes on the different pressures of each plunger stem head during with large footpath swash plate 7 rotation, promote and each plunger valve rod that descends, with finish each plunger valve body into and out of oily operation.
Shown in Figure 2 again, for the present invention establishes the embodiments that organize the plunger valve groups more.Plunger valve group 1 among the figure is three groups, arranges centered by pump housing power input shaft 2 successively, is provided with connecting cylinder 6 between each group, will organize the plunger valve group more and connect into the whole pump housing.Connecting cylinder is provided with the filler opening 61 that is connected with the pump externally mounted fuel tank, and it is positioned at that the bottom of the one group of plunger valve group valve body in below has pump fuel tank 10, and communicates with pump externally mounted fuel tank (not shown) by the filler opening 61 of connecting cylinder.
Assembly bearing involved in the present invention is not in the drawings expression all.
Below in conjunction with accompanying drawing, brief description working procedure of the present invention:
The power input shaft 2 of two inclined plate structure plunger pump of the present invention drives the large footpath swash plate 7, the path swash plate 8 that are connected with axle and rotates.Such as Fig. 1, when the inclined-plane minimum point of large footpath swash plate 7 is pressed on a certain plunger stem head, this plunger valve rod is operation downwards then, and this position that drives disk 9 is in low level, and another plunger valve rod of the opposite location that claims with this plunger valve pole pair then is in uplink state; Simultaneously, because the effect of the peak on path swash plate inclined-plane 81, so that the plunger that disk 9 drives these places up moves, another plunger valve rod of the opposite location that claims with this plunger valve pole pair then is in downstream state.Oblique opposite because of path swash plate 8 and large footpath swash plate 7 is when so path swash plate 8 rotates with rotatingshaft, in support disk 9, dodge out the space of large footpath swash plate 7 rotations again.With in like manner upper, remaining each plunger valve rod will be between the linear up or decline of transmitting.When the plunger valve valve rod moved up, oil-sucking hole steel ball 342 was picked up, and oil-sucking hole sucks fluid; When plunger valve valve rod during to bottom offset, oil-sucking hole steel ball 342 is adjacent in the oil suction aperture, and the fluid in the valve pocket is the communications centre oily inclined hole steel ball 332 that begins to rehearse then, and the fluid in the valve pocket is discharged from oil extraction inclined hole 33, enters pump housing oil pocket and oil outlet tube.Because boss or concave station add and be provided with chamfering man-hour, thereby steel ball drops on oil drainage hole or the oil-sucking hole and all good sealability can be arranged.The present invention is by again and again to-and-fro motion of plunger valve rod of each group plunger valve group, and high pressure oil exports the engineering hydraulic equipment to from oil outlet tube to make the oil outlet of plunger pump have continuously, thereby reaches the goal of the invention of expection.
Claims (4)
1. a two inclined plate structure plunger pump is provided with the plunger valve group in the pump housing, and described plunger valve group is comprised of a plurality of plunger valves, and each plunger valve mainly is made of valve rod and valve body again, and valve body wall is provided with the oil extraction inclined hole, and the oil outlet of valve body connects pump housing oil pocket; The valve body bottom is provided with oil-sucking hole; Described plunger valve group or for single group or be two groups and two groups of many groups of above combinations, it is characterized in that: be fixedly installed large footpath swash plate and path swash plate on the described pump housing rotatingshaft, large footpath swash plate is positioned at the upper position of plunger valve group valve rod, the path swash plate is positioned at the lower position of plunger valve group valve rod valve head, described large footpath swash plate is oblique opposite with the path swash plate, and gradient is consistent; The top of described path swash plate is provided with disk, is laid with to the orientation such as the surrounding of disk a plurality of Durchgangshohle, each Durchgangshohle and the corresponding corresponding coupling of each plunger valve rod, and each plunger valve rod penetrates in each Durchgangshohle of disk; Described disk oblique oblique with the path swash plate and gradient is consistent.
2. a kind of two inclined plate structure plunger pump according to claim 1, it is characterized in that: described pump housing rotatingshaft passes the core of large footpath swash plate and path swash plate, and fixing with two swash plates is connected.
3. a kind of two inclined plate structure plunger pump according to claim 1, it is characterized in that: the core of described disk is established the hole, and the free gap is arranged is enclosed within on the pump housing rotatingshaft.
4. according to claim 1 or 3 described a kind of two inclined plate structure plunger pumps, it is characterized in that: described each plunger valve rod penetrates respectively in each Durchgangshohle of disk, and being provided with the free gap, disk is by the position of each Durchgangshohle between each plunger valve body upper end and plunger stem head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423642.3A CN102937087B (en) | 2012-10-30 | 2012-10-30 | Plunger pump in double swash plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423642.3A CN102937087B (en) | 2012-10-30 | 2012-10-30 | Plunger pump in double swash plate structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102937087A true CN102937087A (en) | 2013-02-20 |
| CN102937087B CN102937087B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210423642.3A Expired - Fee Related CN102937087B (en) | 2012-10-30 | 2012-10-30 | Plunger pump in double swash plate structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN102937087B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185006A (en) * | 2013-04-02 | 2013-07-03 | 王玉喜 | High-pressure plunger pump with automatic oil distributing system |
| CN105402101A (en) * | 2015-12-25 | 2016-03-16 | 重庆华渝电气集团有限公司 | Double-output axial plunger pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487542A (en) * | 1976-03-30 | 1977-10-05 | Vnii Pk I Promy Gidroprivodov | Axial-piston variable-delivery pump and hydraulic drive |
| CN2103025U (en) * | 1991-09-29 | 1992-04-29 | 周其宁 | Two inclined plate large flow plunger-type fuel pump |
| JP2003083239A (en) * | 2001-09-10 | 2003-03-19 | Nikki Co Ltd | Operation method for swash plate type axial plunger pump and driving device therefor |
| US20100143173A1 (en) * | 2007-02-20 | 2010-06-10 | Swashpump Technologies Limited | Dual-plate swash pump |
| CN202431468U (en) * | 2011-11-08 | 2012-09-12 | 王玉喜 | Plunger pump with simple structure |
| CN202937435U (en) * | 2012-10-30 | 2013-05-15 | 王玉喜 | Double-swash-plate-structure plunger pump |
-
2012
- 2012-10-30 CN CN201210423642.3A patent/CN102937087B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487542A (en) * | 1976-03-30 | 1977-10-05 | Vnii Pk I Promy Gidroprivodov | Axial-piston variable-delivery pump and hydraulic drive |
| CN2103025U (en) * | 1991-09-29 | 1992-04-29 | 周其宁 | Two inclined plate large flow plunger-type fuel pump |
| JP2003083239A (en) * | 2001-09-10 | 2003-03-19 | Nikki Co Ltd | Operation method for swash plate type axial plunger pump and driving device therefor |
| US20100143173A1 (en) * | 2007-02-20 | 2010-06-10 | Swashpump Technologies Limited | Dual-plate swash pump |
| CN202431468U (en) * | 2011-11-08 | 2012-09-12 | 王玉喜 | Plunger pump with simple structure |
| CN202937435U (en) * | 2012-10-30 | 2013-05-15 | 王玉喜 | Double-swash-plate-structure plunger pump |
Non-Patent Citations (3)
| Title |
|---|
| 缪建成等: "液压柱塞泵斜盘力矩分析", <<液压气动与密封>> * |
| 袁圆等: "双面斜盘式柱塞泵理论研究", <<煤矿机械>> * |
| 陈焕明等: "高压大流量柱塞泵建模与仿真研究", <<机床与液压>> * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185006A (en) * | 2013-04-02 | 2013-07-03 | 王玉喜 | High-pressure plunger pump with automatic oil distributing system |
| CN105402101A (en) * | 2015-12-25 | 2016-03-16 | 重庆华渝电气集团有限公司 | Double-output axial plunger pump |
| CN105402101B (en) * | 2015-12-25 | 2017-10-13 | 重庆华渝电气集团有限公司 | A kind of dual output axial plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102937087B (en) | 2014-12-10 |
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| CF01 | Termination of patent right due to non-payment of annual fee |