CN102192120B - Straight shaft plunger pump with limiting arc-shaped slide rail balance - Google Patents
Straight shaft plunger pump with limiting arc-shaped slide rail balance Download PDFInfo
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- CN102192120B CN102192120B CN 201010173716 CN201010173716A CN102192120B CN 102192120 B CN102192120 B CN 102192120B CN 201010173716 CN201010173716 CN 201010173716 CN 201010173716 A CN201010173716 A CN 201010173716A CN 102192120 B CN102192120 B CN 102192120B
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Abstract
The invention relates to a straight shaft plunger pump, in particular to a straight shaft plunger pump with a limiting arc-shaped slide rail balance. The straight shaft plunger pump comprises a pump body, a cylinder body, a plunger, a balance, two planar arc-shaped slide rails and a balance angle adjusting device, wherein the bottom of the balance is provided with two slide tracks; the two planer arc-shaped slide rails are arranged at the bottom of the pump body in a sliding mode with the slide tracks of the balance, and are used for supporting the balance; and the slide rails on at least one side are transverse limiting arc-shaped slide rails and the slide tracks on the balance are transverse limiting arc-shaped slide tracks. The transverse limiting arc-shaped slide rails and slide tracks increase the side force of a contact surface, reduce the transverse play of the balance, improve the stress state of the balance, improve the smoothness of a rotor, lighten vibration and fulfill the aim of reducing noises of the whole pump. Besides, the assembly of the whole pump is more simplified, and the assembly accuracy is also improved.
Description
Technical field
The present invention relates to a kind of straight-shaft plunger pump, particularly a kind of limit arc-shaped slide rail wobble plate straight shaft plunger pump.
Background technique
The structure of existing straight-shaft plunger pump mainly comprises the pump housing 1, drive main spindle 2, cylinder body 3, thrust plate 4, plunger 5, balance 6, slide rail 7, loam cake 8, balance angle regulator 9 and piston shoes 10 as shown in Figure 1.Wherein said cylinder body 3 is fixed with described drive main spindle 2, described cylinder body 3 is provided with the cylinder hole 11 on a plurality of circumference that are distributed in the certain radius centered by the axis of drive main spindle 2, described plunger 5 is slidedly arranged in the described cylinder hole 11, and passes through piston shoes 10 along balance 6 upper surface slide.Described cylinder hole 11 is communicated with two semi-circle oil distributing holes 13,14 on the described thrust plate 4 by the waist through hole 12 of being located at the bottom, and the high and low pressure oil pocket 15,16 that passes through on the described loam cake 8 is communicated with oil outlet 17 and oil inlet hole 18 on the loam cake 8 respectively.Described slide rail 7 is the flat circle arc-shaped slide rail, and the slide rail in the straight-shaft plunger pump shown in Figure 1 is the circular arc roller sliding rail, and the slip slide rail 7 ' (as shown in Fig. 2,3) that adopts the bearing shell form is also arranged.Described flat circle arc-shaped slide rail refers to that the length direction of slide rail is circular arc, and is rectangle perpendicular to the cross section of length direction, and described slide rail is two, is fixedly arranged in parallel to each other the both sides of the described pump housing 1 bottom centre's axis hole.The bottom surface of described balance 6 is provided with two cylndrical surface slideways 19 consistent with the circular arc slide rail of described slide rail 7, and described balance 6 is slidedly arranged on the described two circular arc slide rails 7 with cylndrical surface slideway 19.Described balance angle regulator comprises the variable regulating piston 20 and the balance rotating shaft 21 and the slide block 22 that are fixedly arranged on described balance one side by hydraulic oil control, described variable regulating piston 20 is provided with a chute, the described slide block 22 of being located at the balance side is slidedly arranged in the chute of described variable regulating piston 20, variable regulating piston 20 is along its axial motion under the driving of hydraulic oil, the described slide block that is fixedly arranged on balance one side 22 moves axially with chute, produce simultaneously the relative sliding of vertical axial with chute, make balance 6 rotate to regulate the size of balance 6 and described drive main spindle axis angle around balance rotating shaft 21, change the stroke of plunger, reach the purpose of control output oil mass size.
Existing straight-shaft plunger pump, the slideway of variable balance is the plane cambered way, during the pump variable, because balance places the slide block 21 of variable piston to be subject to the effect of lateral force, make balance produce displacement to the direction away from the variable piston, cause the balance horizontal looseness, easily produce mechanical vibration, cause the inordinate wear of balance slideway.Simultaneously, also change the motion state of plunger piston slippery boots at the balance surface of contact, increased the tilting moment of rotor and balance, affected the stationarity of rotor running, to having a negative impact the working life of reducing whole pump noise and whole pump.
When how to prevent the pump variable, balance produces horizontal looseness, and produces therefrom mechanical vibration, and the inordinate wear that causes the balance slideway is that current hydraulic element industry is needed one of difficult problem of solution badly, also becomes the actively improved target of innovation of current industry.
For solving the balance horizontal looseness, improve working life, reduce noise, the design people is based on being engaged in for many years abundant practical experience and professional knowledge of this type of product specification manufacturing, and the utilization of cooperation scientific principle, positive research and innovation in addition, to founding a kind of limit arc-shaped slide rail wobble plate straight shaft plunger pump of new structure, can improve general existing straight-shaft plunger pump, when making its operating variable, prevent the balance horizontal looseness, through constantly studying, designing, and after repeatedly studying sample and improvement, finally create the present invention who has practical value.
Summary of the invention
The object of the invention is to, when overcoming the pump variable of existing straight-shaft plunger pump existence, balance produces horizontal looseness, and produces therefrom mechanical vibration, cause the inordinate wear of balance slideway, and a kind of limit arc-shaped slide rail wobble plate straight shaft plunger pump of new structure is provided, technical problem to be solved provides a kind of slide rail with cross spacing function, to prevent the balance horizontal looseness, improve working life, reduce operational noise, thereby more be suitable for practicality, have more the market competitiveness.
The object of the invention to solve the technical problems is to adopt following technological scheme to realize.A kind of limit arc-shaped slide rail wobble plate straight shaft plunger pump according to the present invention's proposition, comprise that the pump housing, cylinder body, plunger, bottom are provided with the balance of two slideways, are located at that pump housing bottom and balance slideway cunning establish, two flat circle arc-shaped slide rails and the balance angle regulator of supported swinging disc, wherein the slide rail of at least one side and the slideway on the balance are cross spacing arc slide rail and cross spacing slideway.
Purpose of the present invention and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid limit arc-shaped slide rail wobble plate straight shaft plunger pump, the upper surface of wherein said cross spacing arc slide rail is provided with the arc groove along arc direction, and described cross spacing slideway is provided with the circular arc fin slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the circular arc fin along arc direction, and described cross spacing slideway is provided with and is the arc groove slippery with it.
Aforesaid limit arc-shaped slide rail wobble plate straight shaft plunger pump, the upper surface of wherein said cross spacing arc slide rail are provided with the V-type groove along arc direction, and described cross spacing slideway is provided with the V-type fin slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the V-type fin along arc direction, and described cross spacing slideway is provided with the V-type groove slippery with it.
Aforesaid limit arc-shaped slide rail wobble plate straight shaft plunger pump, the upper surface of wherein said cross spacing arc slide rail are provided with the T-shaped groove along arc direction, and described cross spacing slideway is provided with the T-shaped fin slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the T-shaped fin along arc direction, and described cross spacing slideway is provided with the T-shaped groove slippery with it.
Aforesaid limit arc-shaped slide rail wobble plate straight shaft plunger pump, wherein said slide rail are Cuprum alloy slide rail or power metallurgical oil-retaining slide rail.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, limit arc-shaped slide rail wobble plate straight shaft plunger pump of the present invention can reach suitable technological progress and practicability, and has the extensive value on the industry, and it has following advantages at least:
1, limit arc-shaped slide rail wobble plate straight shaft plunger pump of the present invention, the slip plane of the camber slideway of balance and the arc slide rail that is mated changed into have the circular arc that cooperatively interacts or the structure of V-type or T-shaped fin and groove, particularly circular arc and V-type has a lateral force that self-alignment characteristic and slide rail side produce, the horizontal looseness that stops balance may cause in the variable process reduces the possibility that balance and rotor increase tilting moment.Improved the stationarity of rotor running.Owing to having overcome the horizontal looseness of balance, also reduced accordingly the wearing and tearing on slideway surface, prolonged the working life of balance and slide rail.
2, limit arc-shaped slide rail wobble plate straight shaft plunger pump of the present invention, changing the slip plane of the camber slideway of balance and the arc slide rail that is mated into cross section is circular arc or V-type, increased the area of contact between balance slideway and the slide rail, pressure is reduced, alleviate wearing and tearing, further improve working life.
3, utilize the lateral force on arc surface or V-type inclined-plane to produce component upwards, stablized the power that is adjacent to of balance and piston shoes, make whole movement axially loaded obtain good improvement, effectively played the effect that reduces vibrating noise, reach the purpose of vibration and noise reducing.
4, balance slideway and arc-shaped slide rail adopt arc contact surface or V-type surface of contact, except reducing the balance horizontal looseness, can also simplify the linkage editor of balance, make structure simpler, and be easier for installation, improved assembly precision.
5, structure of the present invention really has more technological progress than existing straight-shaft plunger pump, and the structure characteristic that it is unique and function also are far from existing straight-shaft plunger pump and can compare, more existing straight-shaft plunger pump has better noise reduction effect, longer service life, easy for installation, and the structure versatility is good, can be widely used in the product of the same type.
In sum, limit arc-shaped slide rail wobble plate straight shaft plunger pump of the present invention, have above-mentioned advantage and use value, no matter it all has larger improvement on product structure or function, significant progress is arranged technically, and produced handy and practical effect, and more existing straight-shaft plunger pump has and promotes noise reduction, the effect that shockproof, the life-span is long, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of existing straight-shaft plunger pump.
Fig. 2 is the mounting structure schematic diagram of slide rail and balance in the existing straight-shaft plunger pump.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is the structural representation of limit arc-shaped slide rail wobble plate straight shaft plunger pump of the present invention.
Fig. 5 is the structural representation of the another kind of mode of execution of the slideway on spacing arc slide rail and the balance in the limit arc-shaped slide rail wobble plate straight shaft plunger pump of the present invention.
Fig. 6 is the structural representation of another mode of execution of the slideway on spacing arc slide rail and the balance in the limit arc-shaped slide rail wobble plate straight shaft plunger pump of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and the effect thereof of the limit arc-shaped slide rail wobble plate straight shaft plunger pump that foundation the present invention is proposed are described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic can clearly present in the detailed description of the preferred embodiment of following cooperation accompanying drawing.By the explanation of embodiment, can be to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet accompanying drawing only provide with reference to the usefulness of explanation, the present invention is limited.
See also shown in Figure 4, a kind of limit arc-shaped slide rail wobble plate straight shaft plunger pump provided by the invention, comprise that the pump housing 110, cylinder body 120, plunger 130, bottom are provided with two slideways 140,150 balance 160, are located at the pump housing 110 bottoms and balance slideway 140,150 sliding establishing, two flat circle arc-shaped slide rails 170 of supported swinging disc 160,180 and balance angle regulator 190, wherein the slide rail 170 of at least one side is cross spacing arc slide rail and cross spacing slideway with slideway 140 on the balance.One group of slide rail that described cross spacing arc slide rail and slideway refer to mutually to be slidingly matched and the slideway on the balance are the function with restriction balance transverse shifting.Certainly, also can be that two groups of slide rails that cooperatively interact and the slideway of being located at respectively the balance both sides all has the function of restriction balance transverse shifting.Realize that described cross spacing arc slide rail slideway has the various structures scheme, concrete structure and characteristics thereof are described in further detail by following specific embodiment.
Embodiment one
Shown in Figure 4 is most preferred embodiment of the present invention, and in the present embodiment, the upper surface of described cross spacing arc slide rail 170 is provided with the arc groove 171 along arc direction, and described cross spacing slideway 140 is provided with the circular arc fin 141 slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the circular arc fin along arc direction, and described cross spacing slideway is provided with the arc groove slippery with it.
Described circular arc fin along arc direction comprises three layers of implication, and one is a fin; Its two, describedly refer to that along camber line along the circular arc line of the length direction of arc-shaped slide rail, namely the length direction of fin is consistent with the length direction of arc-shaped slide rail, non-intersect between the two, and angle is zero; Its three, the top of described fin is circular arc, i.e. described circular arc fin.
The circular arc fin 171 of described cross spacing arc slide rail 170 upper surfaces is mutually slided with the arc groove 141 on the described cross spacing slideway 140 and is joined, because circular arc has the lateral force of self-alignment characteristic and the generation of slide rail side, the horizontal looseness that can stop balance in the variable process, may cause, thus the possibility that balance and rotor produce tilting moment reduced.Improved the stationarity of rotor running.Owing to having overcome the horizontal looseness of balance, also reduced accordingly the wearing and tearing on slideway surface, prolonged the working life of balance and slide rail.
Change the slip plane of arc slide rail into circular arc, increased the area of contact between balance slideway and the slide rail, pressure is reduced, alleviate wearing and tearing, further improve the working life of balance and slide rail.
Balance slideway and arc-shaped slide rail adopt arc contact surface, can also simplify the linkage editor of balance, make structure simpler, and be easier for installation, improved assembly precision.
Embodiment two
Shown in Figure 5 is the structural representation of the better embodiment of the slideway on the spacing arc slide rail of another kind of the present invention and the balance.In the present embodiment, the upper surface of described cross spacing arc slide rail 170 ' is provided with the V-type groove 171 ' along arc direction, and described cross spacing slideway 140 ' is provided with the V-type fin 141 ' slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the V-type fin along arc direction, and described cross spacing slideway is provided with the V-type groove slippery with it.
The present embodiment has various functional characteristics of the embodiment one equally, compare with embodiment one and to have better machinability, because arc groove or the circular arc fin of annular need to be processed with numerical control machine tool, and V-type groove or the V-type fin of annular can be finished with machine tool.Has advantage at machining with cost of equipment.
Embodiment three
Shown in Figure 6 is the mode of execution of another spacing arc slide rail of the present invention and spacing arc chute, in the present embodiment, described cross spacing arc slide rail 170 " upper surface be provided with T-shaped groove 171 along arc direction ", described cross spacing slideway 140 " be provided with the T-shaped fin 141 slippery with it "; Or the upper surface of described cross spacing arc slide rail is provided with the T-shaped fin along arc direction, and described cross spacing slideway is provided with the T-shaped groove slippery with it.
The advantage of the present embodiment is that lateral Displacement is strict, but without the automatic centering characteristics, the complexity of processing is between embodiment one and embodiment two.
In the various embodiments described above, described slide rail is Cuprum alloy slide rail or power metallurgical oil-retaining slide rail.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (5)
1. limit arc-shaped slide rail wobble plate straight shaft plunger pump, comprise that the pump housing, cylinder body, plunger, bottom are provided with the balance of two slideways, are located at that pump housing bottom and balance slideway cunning establish, two flat circle arc-shaped slide rails and the balance angle regulator of supported swinging disc is characterized in that the slide rail of at least one side and the slideway on the balance are cross spacing arc slide rail and cross spacing slideway.
2. limit arc-shaped slide rail wobble plate straight shaft plunger pump according to claim 1, the upper surface that it is characterized in that described cross spacing arc slide rail is provided with the arc groove along arc direction, and described cross spacing slideway is provided with the circular arc fin slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the circular arc fin along arc direction, and described cross spacing slideway is provided with and is the arc groove slippery with it.
3. limit arc-shaped slide rail wobble plate straight shaft plunger pump according to claim 1, the upper surface that it is characterized in that described cross spacing arc slide rail is provided with the V-type groove along arc direction, and described cross spacing slideway is provided with the V-type fin slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the V-type fin along arc direction, and described cross spacing slideway is provided with the V-type groove slippery with it.
4. limit arc-shaped slide rail wobble plate straight shaft plunger pump according to claim 1, the upper surface that it is characterized in that described cross spacing arc slide rail is provided with the T-shaped groove along arc direction, and described cross spacing slideway is provided with the T-shaped fin slippery with it; Or the upper surface of described cross spacing arc slide rail is provided with the T-shaped fin along arc direction, and described cross spacing slideway is provided with the T-shaped groove slippery with it.
5. limit arc-shaped slide rail wobble plate straight shaft plunger pump according to claim 1 is characterized in that described slide rail is Cuprum alloy slide rail or power metallurgical oil-retaining slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010173716 CN102192120B (en) | 2010-03-12 | 2010-05-07 | Straight shaft plunger pump with limiting arc-shaped slide rail balance |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010124638 | 2010-03-12 | ||
| CN201010124638.8 | 2010-03-12 | ||
| CN 201010173716 CN102192120B (en) | 2010-03-12 | 2010-05-07 | Straight shaft plunger pump with limiting arc-shaped slide rail balance |
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| CN102192120A CN102192120A (en) | 2011-09-21 |
| CN102192120B true CN102192120B (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010173716 Active CN102192120B (en) | 2010-03-12 | 2010-05-07 | Straight shaft plunger pump with limiting arc-shaped slide rail balance |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533739B (en) * | 2014-12-30 | 2017-06-20 | 苏州萨伯工业设计有限公司 | Hydraulic pump swash plate and its processing method |
| DE102020216394A1 (en) | 2020-12-21 | 2022-06-23 | Danfoss Power Solutions Gmbh & Co. Ohg | Cradle bearing and support of a cradle bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903577A (en) * | 1987-07-22 | 1990-02-27 | Linde Aktiengesellschaft | Adjustable axial piston machine with a swash plate design |
| US5706716A (en) * | 1995-04-13 | 1998-01-13 | Calsonic Corporation | Variable displacement swash plate type compressor |
| CN1696507A (en) * | 2004-05-10 | 2005-11-16 | 鲁广立 | Contracting and expanding plunger type oil pump of self-revolving integral drum |
| JP2008082235A (en) * | 2006-09-27 | 2008-04-10 | Ntn Corp | Cradle carrier for variable displacement type axial piston pump |
| CN201301801Y (en) * | 2008-11-21 | 2009-09-02 | 中国石油化工股份有限公司中原油田分公司采油一厂 | High-pressure plunger pump cross fitting |
| CN201679660U (en) * | 2010-03-12 | 2010-12-22 | 北京华德液压工业集团有限责任公司 | Limit arc-shaped slide rail wobble plate straight shaft plunger pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0366074A (en) * | 1989-08-03 | 1991-03-20 | Nec Corp | Servo track writer |
| JP3426431B2 (en) * | 1995-12-15 | 2003-07-14 | 東芝機械株式会社 | Swash plate lubrication structure of swash plate piston type variable displacement pump |
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2010
- 2010-05-07 CN CN 201010173716 patent/CN102192120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903577A (en) * | 1987-07-22 | 1990-02-27 | Linde Aktiengesellschaft | Adjustable axial piston machine with a swash plate design |
| US5706716A (en) * | 1995-04-13 | 1998-01-13 | Calsonic Corporation | Variable displacement swash plate type compressor |
| CN1696507A (en) * | 2004-05-10 | 2005-11-16 | 鲁广立 | Contracting and expanding plunger type oil pump of self-revolving integral drum |
| JP2008082235A (en) * | 2006-09-27 | 2008-04-10 | Ntn Corp | Cradle carrier for variable displacement type axial piston pump |
| CN201301801Y (en) * | 2008-11-21 | 2009-09-02 | 中国石油化工股份有限公司中原油田分公司采油一厂 | High-pressure plunger pump cross fitting |
| CN201679660U (en) * | 2010-03-12 | 2010-12-22 | 北京华德液压工业集团有限责任公司 | Limit arc-shaped slide rail wobble plate straight shaft plunger pump |
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