CN204900170U - Sloping cam plate leads to axle variable piston pump - Google Patents
Sloping cam plate leads to axle variable piston pump Download PDFInfo
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- CN204900170U CN204900170U CN201520593781.XU CN201520593781U CN204900170U CN 204900170 U CN204900170 U CN 204900170U CN 201520593781 U CN201520593781 U CN 201520593781U CN 204900170 U CN204900170 U CN 204900170U
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Abstract
The utility model relates to a plunger pump equipment technical field, in particular to sloping cam plate leads to axle variable piston pump, it includes main part and variable structure division, the main part includes and sets up a spindle unit in this main part casing by a main part casing, and this spindle unit's right -hand member setting is in the center bore of ball pivot pressure disk subassembly, and the center is provided with the rotor subassembly in this ball pivot pressure disk subassembly, and rotor subassembly outside end is connected with the plunger subassembly, and the bulb of the left side end of this plunger subassembly is articulated with the ball hole of sloping cam plate subassembly right side end, sloping cam plate subassembly middle part is provided with the shaft hole, shaft hole that this spindle unit alternated the sloping cam plate subassembly, it is through the infinitely variable control of adjustment sloping cam plate angle realization flow for flow and driving velocity and discharge capacity, be directly proportional, good oil absorption, noise is low, longe -lived, the main shaft can bear axial and radial load simultaneously, the power -weight ratio is high, control range is wide, the response soon, can be used to the advantages such as logical spindle drive of many pumping systems.
Description
Technical field
The utility model relates to plunger pump equipment technical field, particularly a kind of swash plate axis Variable plunger pump.
Background technique
These features of variable displacement pump are widely used in the hydraulic transmission fields such as metallurgical machinery, mine, engineering machinery, boats and ships, civil aviaton's ground installation, especially rotational speed and the large running mechanism field of acceleration transformation range.One of shortcoming of non-shaft type axial piston pump to adopt large-scale ball bearing to bear swash plate to the radial component of rotor, causes bearing life low, and rotating speed is not high and noise large, high in cost of production problem.In order to address this problem, the cam-type axial piston pump of a kind of coaxial pump of this department design, key technology adopts two end supports, eliminates the large bearing of rotor periphery, the rotating speed of coaxial pump is improved; The counter-force of swash plate to piston shoes is acted on rotor by plunger, and passes to main shaft by spline, and rotor can do small swing by lap-ups key, keeps the sealability with oil distribution casing end face, makes rotor have certain micro-performance of automatic tune; The piston of stroking mechanism and main axis parallel are arranged, and act on swash plate outer rim, namely reduce the radial dimension of pump, can reduce again the steering force of stroking mechanism.
Model utility content
The purpose of this utility model is defect for prior art and deficiency, there is provided a kind of structure simple, reasonable in design, a kind of swash plate axis Variable plunger pump easy to use, it solve the shortcoming of non-shaft type axial piston pump: large-scale ball bearings passes to the radial component just carried to swash plate, bearing life is lower, rotating speed is not high, noise is large, the shortcoming that cost is high, it realizes the step-less adjustment of flow by adjustment swash plate angle, make flow and actuating speed and discharge capacity, be directly proportional, good oil absorption, noise is low, life-span is long, main shaft can bear axis and radial load simultaneously, power-weight ratio is high, control range is wide, response is fast, can be used for the advantages such as the axis driving of multiple pump.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of swash plate axis Variable plunger pump described in the utility model, it comprises main body and variant structural part, described main body comprises a body shell, one spindle part is set in this body shell, the right-hand member of this spindle part is arranged in the central shaft hole of ball pivot platen assembly, in this ball pivot platen assembly, center is provided with rotor assembly, rotor assembly outboard end is connected with plunger assembly, the bulb of the left-hand end of this plunger assembly and the ball of swash plate assembly right-hand end hinged, be provided with axis hole in the middle part of described swash plate assembly, this spindle part is inserted through the axis hole of swash plate assembly, described body shell right-hand end is provided with end-cap assembly, described variant structural part is arranged on the right side of housing upper surface, described variant structural part comprises a variable shell, is provided with modulating valve parts on the left of this variable shell internal upper part, and this modulating valve parts left-hand end is provided with sealing screw plug, sealing screw plug is provided with combination seal packing ring, described modulating valve parts valve rod connect a sleeve A, left side is provided with spring seat A in this sleeve A, and the boss of this spring seat A is provided with spring A, and the nose bar of this spring seat A right-hand member is provided with spring B, and in this sleeve A, right-hand end is provided with spring E, described modulating valve parts valve rod on the right side of be provided with pad A, seal ring A and plastic ring, the right end of its valve rod is provided with swivel nut A, and this swivel nut A is outside equipped with protection blind nut, is fixed by adjusting screw, in described variant structural part, left lower is provided with governor assembly, the adjustment axle of this governor assembly, seal ring B is provided with on the left of this adjustment axle, this adjustment axle left lower arranges a throttling plug, this throttling plug is provided with seal ring C, this adjustment axle right-hand member arranges an axle sleeve B, in this axle sleeve B, left side is provided with spring seat B, the boss of this spring seat B is provided with spring C, connection axostylus axostyle is provided with on the right side of this spring seat B, this connection axostylus axostyle is provided with spring D, in this axle sleeve B, right-hand end is provided with spring E, this connection axostylus axostyle is provided with pad B, this connection axostylus axostyle right-hand member is provided with swivel nut B, this swivel nut B is provided with I type hexagon nut, be provided with montant between described variable shell inner valve stem and adjustment axle, this montant is provided with spring seat, this spring seat is connected with sleeve A bottom left.
After adopting said structure, the utility model beneficial effect is: the coaxial Variable plunger pump of a kind of swash plate described in the utility model, it solve the shortcoming of non-shaft type axial piston pump: large-scale ball bearings passes to the radial component just carried to swash plate, bearing life is lower, rotating speed is not high, noise is large, the shortcoming that cost is high, it realizes the step-less adjustment of flow by adjustment swash plate angle, make flow and actuating speed and discharge capacity, be directly proportional, good oil absorption, noise is low, life-span is long, main shaft can bear axis and radial load simultaneously, power-weight ratio is high, control range is wide, response is fast, can be used for the advantages such as the axis driving of multiple pump.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of variant structural part of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1 and Figure 2, a kind of swash plate axis Variable plunger pump described in the utility model, it comprises main body and variant structural part;
Described main body comprises a body shell 2, one spindle part 1 is set in this body shell 2, the right-hand member of this spindle part is arranged in the central shaft hole of ball pivot platen assembly 4, in this ball pivot platen assembly 4, center is provided with rotor assembly 6, rotor assembly 6 outboard end is connected with plunger assembly 5, the bulb of the left-hand end of this plunger assembly 5 and the ball of swash plate assembly 3 right-hand end hinged; Be provided with axis hole in the middle part of described swash plate assembly 3, this spindle part 1 is inserted through the axis hole of swash plate assembly 3; Described body shell 2 right-hand end is provided with end-cap assembly 8;
Described variant structural part 7 is arranged on the right side of housing 2 upper surface; Described variant structural part 7 comprises a variable shell, is provided with modulating valve parts 703 on the left of this variable shell internal upper part, and this modulating valve parts 703 left-hand end is provided with sealing screw plug 701, sealing screw plug 701 is provided with combination seal packing ring 702; Described modulating valve parts 703 valve rod connect a sleeve A, in this sleeve A, left side is provided with spring seat A704, the boss of this spring seat A704 is provided with spring A705, and the nose bar of this spring seat A704 right-hand member is provided with spring B 706, and in this sleeve A, right-hand end is provided with spring E707; Described modulating valve parts 703 valve rod on the right side of be provided with pad A708, seal ring A709 and plastic ring 710, the right end of its valve rod is provided with swivel nut A711, and this swivel nut A711 is outside equipped with protection blind nut 713, is fixed by adjusting screw 712;
In described variant structural part 7, left lower is provided with governor assembly, the adjustment axle of this governor assembly, seal ring B724 is provided with on the left of this adjustment axle, this adjustment axle left lower arranges a throttling plug 722, this throttling plug 722 is provided with seal ring C723, this adjustment axle right-hand member arranges an axle sleeve B, in this axle sleeve B, left side is provided with spring seat B720, the boss of this spring seat B720 is provided with spring C718, connection axostylus axostyle is provided with on the right side of this spring seat B720, this connection axostylus axostyle is provided with spring D719, in this axle sleeve B, right-hand end is provided with spring E717, this connection axostylus axostyle is provided with pad B716, this connection axostylus axostyle right-hand member is provided with swivel nut B715, this swivel nut B715 is provided with I type hexagon nut 714, be provided with montant between described variable shell inner valve stem and adjustment axle, this montant be provided with spring seat 721, this spring seat 721 is connected with sleeve A bottom left.
The function of each assembly of the utility model:
1) spindle part: for oil pump provides the parts of power;
2) body shell: the external member that all component for plunger pump provide assembling and support;
3) swash plate assembly: swash plate and rotor assembly form a tilt angle, changes the size that tilt angle realizes plunger seal volume, reaches the object changing flow;
4) ball pivot platen assembly: the assembly parts of attachment post plunger member and rotor part;
5) plunger assembly: by the to-and-fro motion of plunger part at rotor part, is formed sealed volume at rotor part, is realized the action of oil suction and force feed by the change of sealed volume;
6) rotor assembly: for plunger pump provides the executive component of pressure oil;
7) end-cap assembly: provide support for plunger pump and seal;
8) variant structural part: realize variable by adjustment constant voltage/constant current amount valve and regulate.
A kind of swash plate axis Variable plunger pump described in the utility model, it solve the shortcoming of non-shaft type axial piston pump: large-scale ball bearings passes to the radial component just carried to swash plate, bearing life is lower, rotating speed is not high, noise is large, the shortcoming that cost is high, it realizes the step-less adjustment of flow by adjustment swash plate angle, make flow and actuating speed and discharge capacity, be directly proportional, good oil absorption, noise is low, life-span is long, main shaft can bear axis and radial load simultaneously, power-weight ratio is high, control range is wide, response is fast, can be used for the advantages such as the axis driving of multiple pump.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (1)
1. a swash plate axis Variable plunger pump, is characterized in that: it comprises main body and variant structural part, described main body comprises a body shell, one spindle part is set in this body shell, the right-hand member of this spindle part is arranged in the central shaft hole of ball pivot platen assembly, in this ball pivot platen assembly, center is provided with rotor assembly, rotor assembly outboard end is connected with plunger assembly, the bulb of the left-hand end of this plunger assembly and the ball of swash plate assembly right-hand end hinged, be provided with axis hole in the middle part of described swash plate assembly, this spindle part is inserted through the axis hole of swash plate assembly, described body shell right-hand end is provided with end-cap assembly, described variant structural part is arranged on the right side of housing upper surface, described variant structural part comprises a variable shell, is provided with modulating valve parts on the left of this variable shell internal upper part, and this modulating valve parts left-hand end is provided with sealing screw plug, sealing screw plug is provided with combination seal packing ring, described modulating valve parts valve rod connect a sleeve A, left side is provided with spring seat A in this sleeve A, and the boss of this spring seat A is provided with spring A, and the nose bar of this spring seat A right-hand member is provided with spring B, and in this sleeve A, right-hand end is provided with spring E, described modulating valve parts valve rod on the right side of be provided with pad A, seal ring A and plastic ring, the right end of its valve rod is provided with swivel nut A, and this swivel nut A is outside equipped with protection blind nut, is fixed by adjusting screw, in described variant structural part, left lower is provided with governor assembly, the adjustment axle of this governor assembly, seal ring B is provided with on the left of this adjustment axle, this adjustment axle left lower arranges a throttling plug, this throttling plug is provided with seal ring C, this adjustment axle right-hand member arranges an axle sleeve B, in this axle sleeve B, left side is provided with spring seat B, the boss of this spring seat B is provided with spring C, connection axostylus axostyle is provided with on the right side of this spring seat B, this connection axostylus axostyle is provided with spring D, in this axle sleeve B, right-hand end is provided with spring E, this connection axostylus axostyle is provided with pad B, this connection axostylus axostyle right-hand member is provided with swivel nut B, this swivel nut B is provided with I type hexagon nut, be provided with montant between described variable shell inner valve stem and adjustment axle, this montant is provided with spring seat, this spring seat is connected with sleeve A bottom left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520593781.XU CN204900170U (en) | 2015-08-07 | 2015-08-07 | Sloping cam plate leads to axle variable piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520593781.XU CN204900170U (en) | 2015-08-07 | 2015-08-07 | Sloping cam plate leads to axle variable piston pump |
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| Publication Number | Publication Date |
|---|---|
| CN204900170U true CN204900170U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520593781.XU Active CN204900170U (en) | 2015-08-07 | 2015-08-07 | Sloping cam plate leads to axle variable piston pump |
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| CN (1) | CN204900170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965449A (en) * | 2017-12-28 | 2018-04-27 | 赛克思液压科技股份有限公司 | A kind of structure for plunger pump anticreep cylinder |
| CN112628101A (en) * | 2020-12-07 | 2021-04-09 | 宁波恒力液压股份有限公司 | Flow control valve for plunger pump |
-
2015
- 2015-08-07 CN CN201520593781.XU patent/CN204900170U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965449A (en) * | 2017-12-28 | 2018-04-27 | 赛克思液压科技股份有限公司 | A kind of structure for plunger pump anticreep cylinder |
| CN107965449B (en) * | 2017-12-28 | 2019-03-29 | 赛克思液压科技股份有限公司 | A kind of structure for plunger pump anticreep cylinder |
| CN112628101A (en) * | 2020-12-07 | 2021-04-09 | 宁波恒力液压股份有限公司 | Flow control valve for plunger pump |
| CN112628101B (en) * | 2020-12-07 | 2022-09-16 | 宁波恒力液压股份有限公司 | Flow control valve for plunger pump |
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