CN204371570U - A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump - Google Patents
A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump Download PDFInfo
- Publication number
- CN204371570U CN204371570U CN201420800332.3U CN201420800332U CN204371570U CN 204371570 U CN204371570 U CN 204371570U CN 201420800332 U CN201420800332 U CN 201420800332U CN 204371570 U CN204371570 U CN 204371570U
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- plunger
- rotor
- intercommunicating pore
- oil
- oil groove
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Abstract
A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump, the sphere that plunger head coordinates with piston shoes has the first oil groove and the second oil groove, and be connected with the runner in plunger with the second intercommunicating pore respectively by the first intercommunicating pore, when plunger is in force feed state, high pressure oil, by runner, the first intercommunicating pore and the second intercommunicating pore, makes the first oil groove and the second oil groove be full of high pressure oil.Due to the mating spherical surfaces of sphere and piston shoes, high pressure liquid force feed has certain leakage, the reaction force revealing oil can make plunger produce moment of torsion around its rotation axes of symmetry, thus make plunger produce rotation, the utility model makes plunger in the course of the work, not only has revolution, and has rotation, the point of contact of plunger and rotor is ceaselessly being changed, and the lubrication and the plunger face that are conducive to plunger are wear leveling.
Description
Technical field
The utility model belongs to radial plunger hydraulic pump technical field, particularly a kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump.
Background technique
Hydraulics, as an importance of modern industrial technology, various industry equipment, running mechanism and boats and ships, aircraft is obtained for extensive use.In hydraulic system, the function of oil hydraulic pump is the pressure energy mechanical energy of motor or internal combustion engine prime movers being converted to liquid, provides pressure oil and drives executive component work, belong to Hydraulic power units to system.
Its structural type of radial plunger pump has multiple, but its common trait is each plunger is arranged on the radial direction of transmission shaft, that is the center line of each plunger is all perpendicular to the center line of transmission shaft.Have stators and rotators in radial plunger pump, both arranged off-centre, rotor is contained on pintle, and the circumferencial direction along rotor has multiple uniform plunger hole, and plunger can flexible motion wherein.When transmission shaft rotor driven rotates, due to the effect of return ring and connecting rod, make plunger reciprocating in rotor plunger hole, realize the change of sealed volume.Rotor often circles, and each piston reciprocation once, completes an oil suction and oil extraction process.Hydraulic oil through pintle inner passage, enters plunger cavity when rotor forwards lower half to by pump housing inlet port, after rotor forwards upper half boosting to, discharges from the zone of high pressure of the pintle first half through oil drain out, supply actuator.At present the plunger of such pump is only along with the revolution of rotor, and do not have rotation, owing to not having rotation, plunger is relative with the face of rotor contact constant, and long term wear comparatively seriously, finally there will be and causes stuck seize and the problem damaged.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump, and the lubrication and the plunger face that are conducive to plunger are wear leveling.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump, comprise stator 6 and the rotor 2 of axle flow distribution radial plunger pump, stator 6 is adjustable with the offset of rotor 2, rotor 2 is contained on pintle 1, circumferencial direction along rotor 2 has more than three uniform plunger holes 3, plunger 4 is configured in plunger hole 3, plunger 4 and piston shoes 5 mating spherical surfaces, piston shoes 5 lean the internal surface at stator 6, stator 6 and swing frame 7 are connected, swing frame crossbeam 8 is connected with swing frame 7, stator 6, swing frame 7 outside is provided with radial plunger pump casing 9, the sphere 4-6 that plunger 4 top coordinates with piston shoes 5 has the first oil groove 4-3 and the second oil groove 4-4, and be connected with the high pressure oil runner 4-1 in plunger 4 with the second intercommunicating pore 4-5 respectively by the first intercommunicating pore 4-2.
Advantage of the present utility model is: the utility model makes plunger in the course of the work, not only has revolution, and has rotation, and the point of contact of plunger and rotor is ceaselessly being changed, and the lubrication and the plunger face that are conducive to plunger are wear leveling.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is plunger 4 and the erection drawing of piston shoes 5, stator 6.
Fig. 3 is the structural representation of plunger 4, the plan view that figure (a) is plunger 4, the plan view that figure (b) is plunger 4.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
With reference to Fig. 1, a kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump, comprise stator 6 and the rotor 2 of axle flow distribution radial plunger pump, stator 6 is adjustable with the offset of rotor 2, rotor 2 is contained on pintle 1, circumferencial direction along rotor 2 has 11 uniform plunger holes 3, plunger 4 is configured in plunger hole 3, plunger 4 to-and-fro motion in plunger hole 3, plunger 4 and piston shoes 5 mating spherical surfaces, piston shoes 5 lean the internal surface at stator 6, stator 6 and swing frame 7 are connected, swing frame crossbeam 8 is connected with swing frame 7, stator 6, swing frame 7 outside is provided with radial plunger pump casing 9.Have the first oil groove 4-3 and the second oil groove 4-4 with reference on Fig. 2 and Fig. 3, the sphere 4-6 that plunger 4 top coordinates with piston shoes 5, and be connected with the runner 4-1 in plunger 4 with the second intercommunicating pore 4-5 respectively by the first intercommunicating pore 4-2.
Working principle of the present utility model is:
When hydraulic pump works, plunger 4 is reciprocating in the plunger hole 3 of rotor 2, realizes the change of sealed volume.Rotor 2 often circles, and each plunger 4 makes a round trip, and completes an oil suction and oil extraction process.Hydraulic oil is entered when rotor 2 forwards lower half in plunger hole 3 through pintle 1 inner passage by pump housing inlet port, after rotor 2 forwards upper half boosting to, discharges from the zone of high pressure of pintle 1 first half through oil drain out, supply actuator.
When plunger 4 is in force feed state, high pressure oil, by runner 4-1, the first intercommunicating pore 4-2 and the second intercommunicating pore 4-5, makes the first oil groove 4-3 and the second oil groove 4-4 be full of high pressure oil.Due to the mating spherical surfaces of sphere 4-6 and piston shoes 5, high pressure liquid force feed has certain leakage, and the reaction force revealing oil can make plunger 4 produce moment of torsion around its rotation axes of symmetry, thus makes plunger 4 produce rotation.
Claims (1)
1. one kind is applicable to the Self-rotation structure of the plunger uniform wear of radial plunger hydraulic pump, comprise stator (6) and the rotor (2) of axle flow distribution radial plunger pump, stator (6) is adjustable with the offset of rotor (2), rotor (2) is contained on pintle (1), circumferencial direction along rotor (2) has more than three uniform plunger holes (3), plunger (4) is configured in plunger hole (3), plunger (4) to-and-fro motion in plunger hole (3), plunger (4) and piston shoes (5) mating spherical surfaces, piston shoes (5) lean the internal surface in stator (6), stator (6) and swing frame (7) are connected, swing frame crossbeam (8) is connected with swing frame (7), stator (6), swing frame (7) outside is provided with radial plunger pump casing (9), it is characterized in that: the sphere (4-6) that plunger (4) top coordinates with piston shoes (5) has the first oil groove (4-3) and the second oil groove (4-4), and be connected with the runner (4-1) in plunger 4 with the second intercommunicating pore (4-5) respectively by the first intercommunicating pore (4-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800332.3U CN204371570U (en) | 2014-12-16 | 2014-12-16 | A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800332.3U CN204371570U (en) | 2014-12-16 | 2014-12-16 | A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371570U true CN204371570U (en) | 2015-06-03 |
Family
ID=53327796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420800332.3U Expired - Fee Related CN204371570U (en) | 2014-12-16 | 2014-12-16 | A kind of Self-rotation structure being applicable to the plunger uniform wear of radial plunger hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371570U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240237A (en) * | 2015-10-29 | 2016-01-13 | 华中科技大学 | Water lubrication plunger pump |
| CN106555748A (en) * | 2015-09-29 | 2017-04-05 | 宝山钢铁股份有限公司 | The method ground is burnt in prevention plunger pump skid shoe deformation |
| CN109046888A (en) * | 2018-09-04 | 2018-12-21 | 关军 | A kind of preparation of metal anti-corrosive paint and its smearing method |
-
2014
- 2014-12-16 CN CN201420800332.3U patent/CN204371570U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555748A (en) * | 2015-09-29 | 2017-04-05 | 宝山钢铁股份有限公司 | The method ground is burnt in prevention plunger pump skid shoe deformation |
| CN105240237A (en) * | 2015-10-29 | 2016-01-13 | 华中科技大学 | Water lubrication plunger pump |
| CN105240237B (en) * | 2015-10-29 | 2017-04-26 | 华中科技大学 | Water lubrication plunger pump |
| CN109046888A (en) * | 2018-09-04 | 2018-12-21 | 关军 | A kind of preparation of metal anti-corrosive paint and its smearing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161216 |