CN204371576U - A kind of axial variable displacement plunger pump - Google Patents
A kind of axial variable displacement plunger pump Download PDFInfo
- Publication number
- CN204371576U CN204371576U CN201420762595.XU CN201420762595U CN204371576U CN 204371576 U CN204371576 U CN 204371576U CN 201420762595 U CN201420762595 U CN 201420762595U CN 204371576 U CN204371576 U CN 204371576U
- Authority
- CN
- China
- Prior art keywords
- variable
- transmission shaft
- pump
- plunger
- oil
- 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.)
- Active
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a kind of axial variable displacement plunger pump and comprises plunger pump body and be applied in the intrinsic transmission shaft of plunger pump, this plunger pump body is by anterior variable portion, the middle part pump housing and rear portion pump cover composition, the front end of described transmission shaft is stretched out variable portion and also one is supported in this variable portion by bearing unit A, rear end to extend in pump cover and is supported in this pump cover by a bearing unit B described pump cover has a filler opening and an oil outlet, oil distribution casing is provided with between pump cover and the pump housing, this oil distribution casing has two suction oil pockets be communicated with oil outlet with filler opening respectively.The utility model has the advantage of: plunger pump structure of the present utility model is compact, output flow pulsation is little, stable output, and friction under high rotating speed, noise are low.
Description
Technical field
The utility model relates to a kind of plunger pump, particularly a kind of axial variable displacement plunger pump.
Background technique
Plunger pump is an important device of hydraulic system.It relies on plunger to-and-fro motion in cylinder body, makes the volume of seal operation cavity volume change to realize oil suction, force feed.Plunger pump has that rated pressure is high, compact structure, efficiency are high and the advantage such as Flow-rate adjustment is convenient, is widely used in the occasion that high pressure, large discharge and flow need to regulate, in such as hydraulic press, engineering machinery and boats and ships.
Axial piston pump (English name: Piston pump) is the vibration-direction of piston or the plunger plunger pump parallel with cylinder body central shaft.Axial piston pump utilizes plunger plunger hole in the to-and-fro motion parallel with the transmission shaft volume-variation that produces to carry out work.Because plunger and plunger hole are all circular pieces, add the class fit that can reach very high man-hour, therefore volumetric efficiency is high.
Axial piston pump used at present, its agent structure is complicated, and volume is large, and main body operationally, unstable properties, can produce vibration and noise after running up.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of axial variable displacement plunger pump of stable performance.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of axial variable displacement plunger pump, its innovative point is: comprise plunger pump body and be applied in the intrinsic transmission shaft of plunger pump, this plunger pump body is made up of anterior variable portion, the middle part pump housing and rear portion pump cover, the front end of described transmission shaft is stretched out variable portion and one is supported in this variable portion by bearing unit A, and rear end to extend in pump cover and is supported in this pump cover by a bearing unit B; Described pump cover has a filler opening and an oil outlet, between pump cover and the pump housing, be provided with oil distribution casing, this oil distribution casing has two suction oil pockets be communicated with oil outlet with filler opening respectively; Described variable portion comprises variable shell, variable controlling mechanism and is adjacently sleeved on adjustable variables head on transmission shaft and bearing shell, the outer arcuate face of described variable head coordinates with the inner side arc shaped surface of bearing shell and is slidably connected, and drive it to slide on the inner side arc shaped surface of bearing shell by variable controlling mechanism, and then change the inclination angle of variable head and transmission shaft; The built-in ear end face of the described pump housing is the cylinder body of concave spherical surface, and this cylinder body is sleeved on transmission shaft, and rear end sphere is against the front side of oil distribution casing, and cylinder inner bore is connected with transmission shaft bond and drives it to pivot by transmission shaft; The end face of described cylinder body is evenly distributed with ringwise the plunger hole of nine axis and Boring mill line parallel, and has one and be communicated with oil inlet and outlet with suction oil pocket on oil distribution casing; All install a plunger be slidably matched with it in described each plunger hole, this plunger front end is stretched out plunger hole and connects piston shoes, described transmission shaft is also provided with return mechanism piston shoes being pressed on variable head surface; Described return mechanism comprises return plate, ball pivot and is successively set on pad A, retracting spring and the axle sleeve between cylinder inner bore and transmission shaft in cavity, described ball pivot is sleeved on cylinder inner bore front-end port, described retracting spring is spacing between pad A and axle sleeve, the anterior end surface of pad A is distributed with several thimble ringwise, and the front end of this thimble props up ball pivot; The center of described return plate has a center hole, and surrounding has several piston shoes mounting hole corresponding with piston shoes, and described ball pivot and piston shoes stretch into respectively in the center hole and piston shoes mounting hole of return plate, and are pressed in the plane of variable head by retracting spring by thimble; Described axle sleeve has a little spring, its front end has an annular boss, rear end is against the front side of oil distribution casing, and rear end is connected with the endoporus of cylinder body by a jump ring, there is on front side of described jump ring a pad B, axle sleeve has a little spring, and this little spring is spacing between axle sleeve front end annular boss and pad B, and then is pressed on the sphere of oil distribution casing by cylinder body.
Further, described variable controlling mechanism comprises variable flow valve and shifting block, this variable flow valve is arranged perpendicular to transmission shaft direction, the variable piston of variable flow valve has a reversed column extended internally, described shifting block is fixed on the outside of variable head, and shifting block has the through hole of an accommodation reversed column, described reversed column one end is vertically fixed on the inner side of variable piston, the other end inwardly stretches in the through hole of shifting block, and drives shifting block to drive variable head to slide on the inner side arc shaped surface of bearing shell.
The utility model has the advantage of: plunger pump of the present utility model is made up of anterior variable portion, the middle part pump housing and rear portion pump cover, compact structure, output flow pulsation is little, stable output; The built-in cylinder body of the middle part pump housing, revolution cylinder body remains on variable head by return plate, and this return plate makes several plunger high-speed synchronous in revolution cylinder body rotate, and friction when rotating, noise are low; Revolution cylinder body is pressed on ball pivot and variable head by the thimble of retracting spring and annular spread, and is pressed on oil distribution casing with little spring, strengthens the structure of revolution cylinder body, makes plunger pump performance more stable.
The variable controlling mechanism of plunger pump variable head of the present utility model is slided on the inner side arc shaped surface of bearing shell by the variable piston actuated variable head of variable flow valve, and then the inclination angle changing variable head and transmission shaft realizes the adjustment of variable head, this controlling mechanism is simple, and easy to adjust.
Accompanying drawing explanation
Fig. 1 is the transverse sectional view of a kind of axial variable displacement plunger pump of the utility model.
Fig. 2 is the longitudinal sectional view of a kind of axial variable displacement plunger pump of the utility model.
Fig. 3 is the sectional view of Figure 1A-A line.
Embodiment
As shown in Figure 1 to Figure 3, the utility model discloses a kind of axial variable displacement plunger pump, comprise plunger pump body and be applied in the intrinsic transmission shaft 1 of plunger pump, this plunger pump body is made up of anterior variable portion 2, the middle part pump housing 3 and rear portion pump cover 4, the front end of transmission shaft 1 is stretched out variable portion 2 and one is supported in this variable portion 2 by bearing unit A, and rear end to extend in pump cover 4 and is supported in this pump cover 4 by a bearing unit B; The present embodiment middle (center) bearing assembly A is a roller bearing 5, and bearing unit B is made up of two groups of roller bearings 6.
Pump cover 4 has filler opening 7 and an oil outlet 8, between pump cover 4 and the pump housing, be provided with oil distribution casing 10, this oil distribution casing 10 has two suction oil pockets 9 be communicated with oil outlet 8 with filler opening 7 respectively.
Variable portion 2 comprises variable shell, variable controlling mechanism and is adjacently sleeved on adjustable variables on transmission shaft 1 11 and bearing shell 12, the outer arcuate face of variable head 11 coordinates with the inner side arc shaped surface of bearing shell 12 and is slidably connected, and drive it to slide on the inner side arc shaped surface of bearing shell 12 by variable controlling mechanism, and then change the inclination angle of variable head 11 and transmission shaft 1; This variable controlling mechanism comprises variable flow valve 13 and shifting block 14, this variable flow valve 13 is arranged perpendicular to transmission shaft 1 direction, the variable piston 15 of variable flow valve 13 has a reversed column extended internally 16, shifting block 14 is fixed on the outside of variable head 11 by bolt 32, shifting block 14 has the through hole 17 of an accommodation reversed column 16, reversed column 16 one end is vertically fixed on the inner side of variable piston 15, the other end inwardly stretches in the through hole 17 of shifting block 14, and drives shifting block 14 to drive variable head 11 to slide on the inner side arc shaped surface of bearing shell 12.
The built-in ear end face of the pump housing 3 is the cylinder body 18 of concave spherical surface, and this cylinder body 18 is sleeved on transmission shaft 1, and rear end sphere is against the front side of oil distribution casing 10, and cylinder inner bore 25 is connected with transmission shaft 1 key and drives it to pivot by transmission shaft 1.
The end face of cylinder body 18 is evenly distributed with ringwise the plunger hole 19 of nine axis and cylinder body 18 axis being parallel, and has one and be communicated with oil inlet and outlet 21 with suction oil pocket 9 on oil distribution casing 10; All install a plunger be slidably matched with it 20 in each plunger hole 19, this plunger 20 front end is stretched out plunger hole 19 and connects piston shoes 22, transmission shaft 1 is also provided with return mechanism piston shoes 22 being pressed on variable head 11 surface.
Return mechanism comprises return plate 23, ball pivot 24 and is successively set on pad A26, retracting spring 27 and the axle sleeve 28 between cylinder inner bore 25 and transmission shaft 1 in cavity, ball pivot 24 is sleeved on cylinder inner bore 25 front-end port, retracting spring 27 is spacing between pad A26 and axle sleeve 28, the anterior end surface of pad A26 is distributed with several thimble 28 ringwise, and the front end of this thimble 28 props up ball pivot 24; The center of return plate 23 has a center hole, surrounding has several piston shoes mounting hole corresponding with piston shoes 22, ball pivot 24 and piston shoes 22 stretch into respectively in the center hole and piston shoes mounting hole of return plate 23, and are pressed in the plane of variable head 11 by retracting spring 27 by thimble 28; Axle sleeve 28 has a little spring 29, its front end has an annular boss, rear end is against the front side of oil distribution casing 10, and rear end is connected by the hole endoporus of jump ring 30 with cylinder body 18, there is on front side of hole jump ring 30 a pad B31, axle sleeve 28 has a little spring 29, and this little spring 29 is spacing between axle sleeve 28 front end annular boss and pad B31, and then is pressed on by cylinder body 18 on the sphere of oil distribution casing 10.
Working principle:
Regulate: Moderator Variable valve, variable piston driving reversed column moves, thus drives variable head to slide on the inner side arc shaped surface of bearing shell, and then changes the inclination angle of variable head and transmission shaft, realizes Flow-rate adjustment;
Work: transmission shaft driven drives cylinder body to rotate, thus drive the plunger in cylinder body rotate on the end face of variable head and move axially under the effect of variable head, thus complete oil suction and oil extraction smoothly.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. an axial variable displacement plunger pump, it is characterized in that: comprise plunger pump body and be applied in the intrinsic transmission shaft of plunger pump, this plunger pump body is made up of anterior variable portion, the middle part pump housing and rear portion pump cover, the front end of described transmission shaft is stretched out variable portion and one is supported in this variable portion by bearing unit A, and rear end to extend in pump cover and is supported in this pump cover by a bearing unit B;
Described pump cover has a filler opening and an oil outlet, between pump cover and the pump housing, be provided with oil distribution casing, this oil distribution casing has two suction oil pockets be communicated with oil outlet with filler opening respectively;
Described variable portion comprises variable shell, variable controlling mechanism and is adjacently sleeved on adjustable variables head on transmission shaft and bearing shell, the outer arcuate face of described variable head coordinates with the inner side arc shaped surface of bearing shell and is slidably connected, and drive it to slide on the inner side arc shaped surface of bearing shell by variable controlling mechanism, and then change the inclination angle of variable head and transmission shaft;
The built-in ear end face of the described pump housing is the cylinder body of concave spherical surface, and this cylinder body is sleeved on transmission shaft, and rear end sphere is against the front side of oil distribution casing, and cylinder inner bore is connected with transmission shaft bond and drives it to pivot by transmission shaft;
The end face of described cylinder body is evenly distributed with ringwise the plunger hole of nine axis and Boring mill line parallel, and has one and be communicated with oil inlet and outlet with suction oil pocket on oil distribution casing; All install a plunger be slidably matched with it in described each plunger hole, this plunger front end is stretched out plunger hole and connects piston shoes, described transmission shaft is also provided with return mechanism piston shoes being pressed on variable head surface;
Described return mechanism comprises return plate, ball pivot and is successively set on pad A, retracting spring and the axle sleeve between cylinder inner bore and transmission shaft in cavity, described ball pivot is sleeved on cylinder inner bore front-end port, described retracting spring is spacing between pad A and axle sleeve, the anterior end surface of pad A is distributed with several thimble ringwise, and the front end of this thimble props up ball pivot;
The center of described return plate has a center hole, and surrounding has several piston shoes mounting hole corresponding with piston shoes, and described ball pivot and piston shoes stretch into respectively in the center hole and piston shoes mounting hole of return plate, and are pressed in the plane of variable head by retracting spring by thimble;
Described axle sleeve has a little spring, its front end has an annular boss, rear end is against the front side of oil distribution casing, and rear end is connected with the endoporus of cylinder body by a jump ring, there is on front side of described jump ring a pad B, axle sleeve has a little spring, and this little spring is spacing between axle sleeve front end annular boss and pad B, and then is pressed on the sphere of oil distribution casing by cylinder body.
2. axial variable displacement plunger pump according to claim 1, it is characterized in that: described variable controlling mechanism comprises variable flow valve and shifting block, this variable flow valve is arranged perpendicular to transmission shaft direction, the variable piston of variable flow valve has a reversed column extended internally, described shifting block is fixed on the outside of variable head, shifting block has the through hole of an accommodation reversed column, described reversed column one end is vertically fixed on the inner side of variable piston, the other end inwardly stretches in the through hole of shifting block, and drives shifting block to drive variable head to slide on the inner side arc shaped surface of bearing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762595.XU CN204371576U (en) | 2014-12-08 | 2014-12-08 | A kind of axial variable displacement plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762595.XU CN204371576U (en) | 2014-12-08 | 2014-12-08 | A kind of axial variable displacement plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371576U true CN204371576U (en) | 2015-06-03 |
Family
ID=53327802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420762595.XU Active CN204371576U (en) | 2014-12-08 | 2014-12-08 | A kind of axial variable displacement plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371576U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801733A (en) * | 2015-11-26 | 2017-06-06 | 熵零股份有限公司 | A kind of hydraulic mechanism |
| CN106801732A (en) * | 2015-11-26 | 2017-06-06 | 熵零股份有限公司 | A kind of hydraulic mechanism |
| CN113323832A (en) * | 2021-08-03 | 2021-08-31 | 江苏恒立液压科技有限公司 | Cylinder body gasket assembly structure, plunger machine and gasket adjusting method |
| CN115045829A (en) * | 2022-06-27 | 2022-09-13 | 重庆工业职业技术学院 | Novel axial plunger pump and pump column structure thereof |
-
2014
- 2014-12-08 CN CN201420762595.XU patent/CN204371576U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801733A (en) * | 2015-11-26 | 2017-06-06 | 熵零股份有限公司 | A kind of hydraulic mechanism |
| CN106801732A (en) * | 2015-11-26 | 2017-06-06 | 熵零股份有限公司 | A kind of hydraulic mechanism |
| CN113323832A (en) * | 2021-08-03 | 2021-08-31 | 江苏恒立液压科技有限公司 | Cylinder body gasket assembly structure, plunger machine and gasket adjusting method |
| CN113323832B (en) * | 2021-08-03 | 2021-11-09 | 江苏恒立液压科技有限公司 | Cylinder body gasket assembly structure, plunger machine and gasket adjusting method |
| CN115045829A (en) * | 2022-06-27 | 2022-09-13 | 重庆工业职业技术学院 | Novel axial plunger pump and pump column structure thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204371576U (en) | A kind of axial variable displacement plunger pump | |
| CN106837725B (en) | two-dimensional axial plunger pump | |
| CN101418784A (en) | Positive and negative rotating axial plunger pump | |
| CN103203502A (en) | Rotary cutting machine | |
| CN202560499U (en) | Connecting rod piston shoes type wagon-flow allocation radial plunger pump | |
| CN101539130B (en) | Hydraulic clino-axial piston pump or motor | |
| CN103883493B (en) | The axial piston pump that a kind of cylinder body is static | |
| CN201100515Y (en) | Pole piston lubrication pump | |
| CN104500358A (en) | Low-noise high-speed axial plunger pump | |
| CN201739111U (en) | Inclined disc connecting rod type axial water pressure plunger pump | |
| CN206770147U (en) | Light-weight electric hydraulic planger pump | |
| CN107288872B (en) | A kind of pump and the hydraulic power assembly using the pump | |
| CN104500327A (en) | Axial plunger motor | |
| CN106968910A (en) | Light-weight electric hydraulic planger pump | |
| CN103334926A (en) | Rotating stator type double-acting variable vane pump | |
| CN107448381B (en) | Power device | |
| CN201292923Y (en) | Positive and negative rotating axial plunger pump | |
| CN105114278A (en) | Novel axial plunger pump | |
| CN108425820A (en) | A kind of cam-type axial piston pump of included slippage pump | |
| CN201874805U (en) | Piston-shoe for swashplate axial piston pumps | |
| CN201055956Y (en) | Spindle carrier lubricating arrangement | |
| CN101539131B (en) | Hydraulic clino-axial piston pump or motor | |
| CN209196065U (en) | A kind of hydrostatic stepless speed change device | |
| TWI553228B (en) | Liquid pressurized pump output shaft lubrication structure | |
| CN202673598U (en) | Novel eight-piston axial piston pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Oscen Hydraulic Technology Co., Ltd. Assignor: Qidong High-Pressure Oil Pump Co.,Ltd. Contract record no.: 2015320000540 Denomination of utility model: Variable axial plunger pump Granted publication date: 20150603 License type: Exclusive License Record date: 20150709 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |