CN201013543Y - Ball hinged radial direction plunger piston adjustable-discharge pump - Google Patents
Ball hinged radial direction plunger piston adjustable-discharge pump Download PDFInfo
- Publication number
- CN201013543Y CN201013543Y CNU2007200315628U CN200720031562U CN201013543Y CN 201013543 Y CN201013543 Y CN 201013543Y CN U2007200315628 U CNU2007200315628 U CN U2007200315628U CN 200720031562 U CN200720031562 U CN 200720031562U CN 201013543 Y CN201013543 Y CN 201013543Y
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- plunger
- variable
- piston
- rotor
- bulb
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Abstract
The utility model discloses a spherical hinge type radial plunger piston variable pump, which comprises a shell, a pump body, a pump cover, a flow distributing shaft, a driving shaft, a rotor, a stator, a plunger, a plunger, skid shoe, a limit valve and a variable pump. The shell is provided with a flow-distributing shaft in the middle; the flow-distributing shaft is provided with a rotor; the rotor the plunger and a skid shoe connected with 7-unit spherical hinges in radial direction. The skid shoe is provided with a retaining ring and a stator outside; a variable plunger bulb connected with the spherical hinge and variable plunger as well as limit plunger bulb and limit plunger are provided outside of the stator symmetrically. The two ends of the static balance groove are communicated through hole punching. The radial force balance of the friction pair of the rotor and the flow distribution shaft of the utility model is quite good, and lower noise, which is not easy to heat and occur journal sticking and is a radial plunger variable pump urgently needed for the development of various sectors of national economy with a wide range in application.
Description
Technical field
The utility model relates to the high-pressure large-displacement radial piston variable displacement pump technology in the machinery such as Petro-Chemical Machinery, mining machinery, ship machinery, steel rolling forging machinery and equipment, war industry, injection moulding and extruded aluminium section, particularly a kind of ball pivot radial piston variable displacement pump.
Background technique
The beginning of the eighties, Germany BOSCH company released a kind of high-pressure large-displacement radial piston variable displacement pump, its every technical performance index is all relatively good, pressure 32Mpa, discharge capacity 250ml/r, rotating speed 1500r.p.m, total efficiency 86%, noise 85dB, life-span, dynamic response time was (50-80,80-120) ms more than 5000 hours, was more advanced in the world a kind of radial plunger pump at that time.Its shortcoming is, rotor and pintle fastness balanced radial force are bad, and noise ratio is bigger, easily generates heat and problems such as seize take place.The beginning of the nineties at the end of the eighties, China researchs and develops out in Gansu a kind of high pressure low noise radial piston variable displacement pump, be that second family produces this type high-pressure service pump in the world, its technical performance index and structural type and above-mentioned close, rotor and pintle fastness have adopted the static balance theory, substantially solved the seize problem, not only the noise of pump has been dropped to 84dB, and its life-span was brought up to more than 6000 hours.But the heating problem of pump, problems such as stator outer ring wearing and tearing are not solved fully, and above two types of high-pressure service pumps all can not two-way rotation and bidirectional variable, is subjected to certain limitation for various industrial application.
The model utility content
The purpose of this utility model provides a kind of ball pivot radial piston variable displacement pump, and rotor and pintle fastness balanced radial force are good, and low noise is difficult for problems such as heating and generation seize.
The purpose of this utility model is achieved through the following technical solutions:
A kind of ball pivot radial piston variable displacement pump, form by housing, pump cover, pintle, transmission shaft, rotor, stator, plunger, piston shoes, limited valve and variable control valve, described housing middle part is provided with pintle, rotor is housed on the pintle, rotor radially is equipped with plunger and the piston shoes that 7 groups of ball pivots connect, in the piston shoes outside retaining ring and stator are housed, the stator outside is arranged with variable piston bulb and variable piston and stop plunger bulb and the stop plunger that ball pivot connects; Described rotor is connected with live axle by ear type key, cross key, and live axle is contained on the pump cover; Described housing both sides are provided with variable control valve and limited valve.Symmetric arrangement has the flow window on the described pintle, adds buffering in triangular groove tip, flow window two ends and hits small sircle hole, is provided with the static balance groove in flow window both sides, and the two ends of static balance groove are communicated with by punching.
Described piston shoes are integral, and are provided with plenum chamber at the piston shoes head, at plenum chamber the adjustable damping controller are housed.
Described variable control valve adopts the plug-in type integrated valve.
The head of described variable piston bulb and stop plunger bulb is established a plenum chamber respectively, and a regulated variable damper is established in variable piston and variable piston bulb joint, and a limit damping device is established in the joint of stop plunger and stop plunger bulb.
The utility model is to adapt to national economic development every profession and trade to be badly in need of and the wider a kind of radial piston variable displacement pump of application area, its technical performance index is pressure 32Mpa, maximum pressure 40Mpa, discharge capacity 250ml/r, rotating speed 1500r.p.m, total efficiency 87%, noise 82dB, life-span is more than 8000 hours, dynamic response time (80-120,50-80) ms, variable format have the servocontrol variable, electric-hydraulic proportion control, constant voltage control, various control forms such as composite sensing control and permanent power control are the higher a kind of hydraulic power supplies of world today's technical performance index of the same type.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the piston shoes structural representation;
Fig. 3 is the pintle structural representation;
Fig. 4 is variable piston and variable piston header structure schematic representation;
Fig. 5 is stop plunger and stop plunger header structure schematic representation;
Fig. 6 is housing and trapezoidal slide block structure schematic representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
The utility model has designed a kind of ball pivot radial piston variable displacement pump, pintle 2 is equipped with at housing 1 middle part, rotor 3 is housed on the pintle 2, rotor 3 radially is equipped with plunger 16 and the piston shoes 17 that 7 groups of ball pivots connect, in piston shoes 17 outsides retaining ring 4 and stator 5 are housed, stator 5 outsides are arranged with variable piston bulb 6 and variable piston 7 and stop plunger bulb 18 and the stop plunger 19 that ball pivot connects; Described rotor 3 is connected with live axle 14 by ear type key 10, cross key 11, and live axle 14 is contained on the pump cover 15; Described housing 1 both sides are provided with variable control valve 9 and limited valve 21.
As shown in Figure 1, hydraulic oil enters pintle 2 from housing 1, enter plunger 16 bottoms again from pintle window 2.1, because rotor 3 has an eccentric e with stator 5, live axle 14 drives rotor 3 rotations when motor rotates, when plunger 16 is protruding, the plunger base volume increases to oil suction, when rotor 3 turns over 180 °, and plunger 16 inside retractions, the plunger base volume is reduced to oil extraction, discharges from the housing oil drain out by the pintle window.
As shown in Figure 1, piston shoes 17 bulbs and plunger 16 are hinged, and are provided with damper regulator 17.3 on piston shoes 17, and plunger 16 piston shoes 17 slide on stator 5 internal surfaces when rotor 3 rotations, and piston shoes are adjustable in the impacting force of stator inner surface.As shown in Figure 2, piston shoes 17 are integral, be provided with plenum chamber 17.2 at piston shoes head 17.1, at plenum chamber adjustable damping controller 17.3 is housed, after fluid enters piston shoes plenum chamber 17.2 by damping controller 17.3, the reaction thrust of 5 pairs of plunger 16 piston shoes 17 of stator is with regard to may command, and can adjust optimal compression power and impacting force coefficient, thereby reduces the noise and the heating of pump.
In order to make rotor 3 positive and negative rotation on pintle 2, as shown in Figure 3, flow window 2.1 is symmetric arrangement on the pintle, be respectively equipped with symmetrical triangle at pintle 2 oil inlet and outlet flow windows 2.1 two ends and add small sircle hole 2.2, solve the dead volume entrap phenomenon that changes, the suffered hydraulic shock of plunger 16 piston shoes 17 when reducing rotor 3 rotation high low pressures and switching, thus reduce the impact of pump and reduce the noise of pump.Be provided with static balance groove 2.3 in pintle flow window both sides, and the two ends of groove are communicated with by punching 2.4, this compensating groove is the radial load of balance varying load fast, can reduce hydraulic shock, guarantee rotor and pintle this has film lubrication all the time to fastness in operation process, thereby improves the working life of pump.
As shown in Figure 1, stator 5 is under the 17 impacting force effects of plunger 16 piston shoes, stator will rotate when rotor 3 rotations, stator outer ring and variable piston bulb 6 and stop plunger bulb 18 will wear and tear simultaneously, shown in Figure 5 as Fig. 4, add regulated variable damper 22 and limit damping device 23 respectively in variable piston 7 and variable piston bulb 6 and stop plunger 19 stop plunger bulbs 18 joints respectively, and establish a plenum chamber 6.1 and 18.1 two plunger head, controlled variable plunger ball and stop plunger bulb are to the impacting force of stator outer ring, in case stator has film lubrication when rotating, plunger head adopts high-abrasive material simultaneously, has solved the similar products at home and abroad stator and has often damaged problem.
As shown in Figure 6, the circle both sides are provided with replaceable trapezoidal slide block 24 in housing 1, trapezoidal slide block adopts high-abrasive material, the one, rotate or variable reduces wearing and tearing when moving at stator, replaceable in case wear and tear, solve housing and damage problem, the 2nd, reduce its friction factor when stator moves in the variable process, improve the control accuracy of pump.
The utility model stroking mechanism is identical with other type radial plunger pump stroking mechanism, makes stator move the change offset by cartridge valve control, thereby realizes the variable of pump.
Claims (5)
1. ball pivot radial piston variable displacement pump, by housing, pump cover, pintle, transmission shaft, rotor, stator, plunger, piston shoes, limited valve and variable control valve are formed, described housing (1) middle part is provided with pintle (2), rotor (3) is housed on the pintle (2), rotor (3) radially is equipped with plunger (16) and the piston shoes (17) that 7 groups of ball pivots connect, in piston shoes (17) outside retaining ring (4) and stator (5) are housed, stator (5) outside is arranged with variable piston bulb (6) and variable piston (7) and stop plunger bulb (18) and the stop plunger (19) that ball pivot connects; Described rotor (3) is connected with live axle (14) by ear type key (10), cross key (11), and live axle (14) is contained on the pump cover (15); Described housing (1) both sides are provided with variable control valve (9) and limited valve (21), it is characterized in that the last symmetric arrangement of described pintle (2) has flow window (2.1), add buffering in triangular groove tip, flow window (2.1) two ends and hit small sircle hole (2.2), be provided with static balance groove (2.3) in flow window both sides, the two ends of static balance groove are communicated with by punching (2.4).
2. a kind of ball pivot radial piston variable displacement pump according to claim 1 is characterized in that described piston shoes (17) are integral, and is provided with plenum chamber (17.2) at piston shoes head (17.1), at plenum chamber adjustable damping controller (17.3) is housed.
3. a kind of ball pivot radial piston variable displacement pump according to claim 1 is characterized in that described variable control valve (9) adopts the plug-in type integrated valve.
4. a kind of ball pivot radial piston variable displacement pump according to claim 1, the head that it is characterized in that described variable piston bulb (6) and stop plunger bulb (18) is established a plenum chamber (6.1) and (18.1) respectively, variable piston (7) is established a regulated variable damper (22) with variable piston bulb (6) joint, and stop plunger (19) is established a limit damping device (23) with the joint of stop plunger bulb (18).
5. a kind of ball pivot radial piston variable displacement pump according to claim 1 is characterized in that the circle both sides are provided with removable trapezoidal slide block (24) in the described housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200315628U CN201013543Y (en) | 2007-04-06 | 2007-04-06 | Ball hinged radial direction plunger piston adjustable-discharge pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200315628U CN201013543Y (en) | 2007-04-06 | 2007-04-06 | Ball hinged radial direction plunger piston adjustable-discharge pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013543Y true CN201013543Y (en) | 2008-01-30 |
Family
ID=39025329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200315628U Expired - Fee Related CN201013543Y (en) | 2007-04-06 | 2007-04-06 | Ball hinged radial direction plunger piston adjustable-discharge pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013543Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112476881A (en) * | 2020-09-30 | 2021-03-12 | 成都飞机工业（集团）有限责任公司 | Retractable combined material barrel lays frock |
-
2007
- 2007-04-06 CN CNU2007200315628U patent/CN201013543Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112476881A (en) * | 2020-09-30 | 2021-03-12 | 成都飞机工业（集团）有限责任公司 | Retractable combined material barrel lays frock |
| CN112476881B (en) * | 2020-09-30 | 2022-06-14 | 成都飞机工业（集团）有限责任公司 | Retractable combined material barrel lays frock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LU ; PATENTEE Free format text: FORMER NAME OR ADDRESS: LU |
|
| CP03 | Change of name, title or address |
Address after: Gansu province Lanzhou City Anning District Fuxing Road 5, zip code: 730070 Co-patentee after: Dong Xiao Patentee after: Lu Zhi Address before: Gansu province Lanzhou City Anning District Fuxing Road 5, zip code: 730070 Patentee before: Lu Kun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20150406 |
|
| EXPY | Termination of patent right or utility model |