CN201560804U - Hydraulic motor with nanometer-graphite friction pair - Google Patents

Hydraulic motor with nanometer-graphite friction pair Download PDF

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Publication number
CN201560804U
CN201560804U CN2009202572739U CN200920257273U CN201560804U CN 201560804 U CN201560804 U CN 201560804U CN 2009202572739 U CN2009202572739 U CN 2009202572739U CN 200920257273 U CN200920257273 U CN 200920257273U CN 201560804 U CN201560804 U CN 201560804U
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CN
China
Prior art keywords
plunger
rod
cylinder
hydraulic motor
graphite layer
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.)
Expired - Lifetime
Application number
CN2009202572739U
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Chinese (zh)
Inventor
徐荣滨
徐祖悦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydraulic Machinery Co Ltd Kunshan Blond
Original Assignee
Hydraulic Machinery Co Ltd Kunshan Blond
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hydraulic Machinery Co Ltd Kunshan Blond filed Critical Hydraulic Machinery Co Ltd Kunshan Blond
Priority to CN2009202572739U priority Critical patent/CN201560804U/en
Application granted granted Critical
Publication of CN201560804U publication Critical patent/CN201560804U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a hydraulic motor with a nanometer-graphite friction pair. The hydraulic motor comprises a housing, and a plurality of cylinders distributed on the housing in the radial direction, wherein a plunger is arranged in each cylinder in the sliding connection way; the outer end of the cylinder is sealed by a cylinder cover; a bearing cover and a flow distribution body are respectively connected with one end face of the housing; a crank shaft is supported on the housing and the bearing cover through a bearing; the crank handle section of the crank shaft is uniformly hinged with connection rods with the same number of the cylinders along the radial direction; one end of each connection rod is hinged with the corresponding section of the crank handle, and the other end is hinged with the corresponding plunger; and a self-lubricating nanometer graphite layer is formed on at least one friction surface of a friction pair formed by the movable connection section between the crank shaft and the connection rod, the connection rod and the plunger, and the plunger and the cylinder. The hydraulic motor has the advantages that the nanometer graphite layer formed on the surface of the friction pair has high resistance to friction, abrasion and heat and self-lubrication property, thereby greatly improving the carrying capacity, the mechanical efficiency and the service life of the hydraulic motor.

Description

Oil hydraulic motor with friction pair with nanometer graphite layer
Technical field
The utility model relates to oil hydraulic motor and metal surface treating method, particularly has the oil hydraulic motor and the method for processing nanometer graphite layer of friction pair with nanometer graphite layer.
Background technique
The hydraulic pressure horse is general main to be made up of bent axle, plunger, connecting rod, housing, flow housing, pintle and bearing cap etc.From the 60 to 70's of eighties of last century so far, in the oil hydraulic motor of producing, its housing that has the hydraulic pressure runner is fixed with cylinder cap, bearing cap and flow housing respectively both at home and abroad.The plunger of this oil hydraulic motor is provided with an aperture, plunger is passed to mutually with connecting rod typed ball bearing pair and plunger case hole improve the Pulvis Emolliens heat condition, simultaneously be provided with aperture too on the connecting rod, in it and to be provided with the damping of band micro hole stifled, make the friction pair between connecting rod and bent axle form hydrostatic support.Though apply high-abrasive material such as Babbitt in the piston shoes bottom, because of specific pressure is big, fretting wear is still serious, mechanical efficiency is low, and the low-speed performance and the startability of motor are poor, even scuffing failure takes place, and has limited the further raising of motor pressure and speed.The Italian has changed this friction pair into rolling bearing, makes its structure become comparatively complicated, and causes that the volume of oil hydraulic motor and weight are big, manufacture cost is high, and when the discharge capacity of motor greatly the time, the reliability of its work and life problems are difficult to solution.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of transmission efficiency height, friction is little, noise is low, be convenient to manufacturing and lower oil hydraulic motor with friction pair with nanometer graphite layer and the method for processing nanometer graphite layer of manufacture cost.
The foregoing invention purpose is implemented by following technical proposals:
Described oil hydraulic motor has a housing, this housing is evenly equipped with several cylinder bodies diametrically, there is a plunger to slip with it in each cylinder body, there is a cylinder cap involution cylinder body outer end, bearing cap and dispense fluid are connected on the end face of housing, bent axle is bearing on housing and the bearing cap by bearing, the crank section of bent axle radially evenly is hinged with the connecting rod with described cylinder body equal number, each connecting rod one end and crank counterpart are hinged, the other end is hinged with a corresponding plunger, wherein said bent axle and connecting rod, connecting rod and plunger, plunger and at least one friction surface of the formed friction pair of cylinder body kinematic coupling portion are provided with the nanometer graphite layer of selflubricating.
Described connecting rod one end is provided with piston shoes, and the bent axle counterpart is provided with two connecting rod back-up rings, and connecting rod is realized flexibly connecting by described piston shoes and cooperating of connecting rod back-up ring with bent axle, and the surface of described piston shoes is provided with the nanometer graphite layer of selflubricating.
The described connecting rod the other end is provided with bulb, and the plunger counterpart is provided with hemispherical aperture, and the spherical bearing of bulb is realized the hinged of the two on the connecting rod in the hemispherical aperture of plunger end, and the surface of described bulb or hemispherical aperture is provided with the nanometer graphite layer of selflubricating.
Described outer plunger surface is provided with the nanometer graphite layer of selflubricating.
The utility model oil hydraulic motor is to wherein to-and-fro motion part---and there is the rubbing surface of relative movement that nanometer graphite layer is set on connecting rod, the plunger.Utilize the inventive method on the kinetic friction face, to deposit and generate 10~20 micron thickness and very firm nanometer graphite layer.This nanometer graphite layer has good wear-resisting, heat-resisting, anti-wear and wear-resistant performance, and have also that specific surface area is big, characteristic such as high diffusibility, easy-sintering, fusing point are low.Nanometer graphite layer of the present invention forms novel lubricating material in the friction pair, to replace traditional antifriction mode.Nanometer graphite layer not only can form the film that one deck is easily sheared at friction surface, reduce friction factor, and can carry out filling up and repairing to a certain degree to friction surface, play wear-resistant effect, thereby make oil hydraulic motor when running up, can keep long-term good lubricating property and wear-resisting property, produce such beneficial effect thus: have wear-resisting, heat-resisting and anti-wear and wear-resistant performance, and can keep long-term good lubricating property, thereby the bearing capacity and the mechanical efficiency of motor have been improved; Have higher functional reliability and life-span; The working pressure of motor can increase than originally, had got rid of simultaneously that Babbitt has reduced cost of production to the pollution of environment in the motor processing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 plunger structural representation.
Fig. 4 connecting rod structural representation.
Among the figure, 1 bent axle, 2 bearing caps, 4 cylinder caps, 5 plungers, 6 connecting rods, 6a bulb, 6b piston shoes, 10 connecting rod back-up rings, 11 housings, 13 dispense fluid, 14 pintles, 51 selflubricating friction pairs, 61,62 nano-lubricating materials, Ia, IIa, IIIa nanometer graphite layer.
Embodiment
Contrast Fig. 1, the utility model oil hydraulic motor mainly is made up of housing, cylinder cap, dispense fluid, plunger, bent axle and bearing.The both ends of the surface of housing 11 connect dispense fluid 13 and bearing cap 2 respectively, and the inner chamber of housing 11 is equipped with bent axle 1, and two ends of bent axle 1 are bearing on housing 11 and the bearing cap 2 by tapered roller bearing respectively.
Housing 11 is evenly equipped with 5 cylinder bodies diametrically, sees also Fig. 2.Each cylinder body outer end has a cylinder cap 4 to cover, and cylinder body is built-in with movingly a plunger 5 with it, and plunger 5 reciprocatingly slides in cylinder body, and plunger 5 forms sliding friction pair I with inner chamber of cylinder block.
The inner of plunger 5 is provided with hemispherical aperture, and an end of connecting rod 6 is established bulb, and bulb places the hemispherical aperture of plunger 5, and bulb can rotate connecting rod relative to plunger by its upper support face and the cooperation of hemispherical aperture like this, forms a secondary II of pivoting friction.
The other end of connecting rod 6 is connected with bent axle 1.5 connecting rods are distributed on bent axle 1 in the radial direction, are respectively arranged with the connecting rod back-up ring in the left and right sides of corresponding each connecting rod 6 position, and corresponding end is provided with piston shoes and this two back-up ring is hinged, and connecting rod 6 and bent axle 1 can be relatively rotated, and form a pivoting friction pair.
Be provided with the nanometer graphite layer Ia of selflubricating at the outer surface of the plunger 5 of one of friction surface that forms above-mentioned sliding friction pair, see also Fig. 3.The nanometer graphite layer IIa, the IIIa that are respectively arranged with selflubricating on the surface of the piston shoes 6b of the sphere of the bulb 6a of connecting rod 6 one ends of one of friction surface that forms above-mentioned secondary II of pivoting friction, secondary III of pivoting friction and the other end see also Fig. 4.Like this, between cylinder body and the plunger, between plunger and the connecting rod, form a selflubricating friction pair between connecting rod and the bent axle.
During the work of the utility model oil hydraulic motor, orderly five plunger 5 to-and-fro motion in cylinder body of promotion of hydraulic oil by the 14 control high pressure of the pintle in the dispense fluid 13, by secondary I of the pivoting friction drivening rod 6 of correspondence, this connecting rod promotes bent axle 1 by secondary II of pivoting friction and rotates output torque.Owing in above-mentioned friction pair, adopted the nanometer graphite layer of selflubricating, no longer need self lubricating system of the prior art, make the structure of oil hydraulic motor simpler.

Claims (4)

1. the oil hydraulic motor that has friction pair with nanometer graphite layer, one housing is arranged, this housing is evenly equipped with several cylinder bodies diametrically, there is a plunger to slip with it in each cylinder body, there is a cylinder cap involution cylinder body outer end, bearing cap and dispense fluid are connected on the end face of housing, bent axle is bearing on housing and the bearing cap by bearing, the crank section of bent axle radially evenly is hinged with the connecting rod with described cylinder body equal number, each connecting rod one end and crank counterpart are hinged, the other end is hinged with a corresponding plunger, it is characterized in that described bent axle and connecting rod, connecting rod and plunger, plunger and cylinder body two have at least one friction surface of the formed friction pair of kinematic coupling portion of relative movement part to be provided with the nanometer graphite layer of selflubricating.
2. the oil hydraulic motor with friction pair with nanometer graphite layer according to claim 1, it is characterized in that described connecting rod one end is provided with piston shoes, the bent axle counterpart is provided with two connecting rod back-up rings, connecting rod is realized flexibly connecting by described piston shoes and cooperating of connecting rod back-up ring with bent axle, and the surface of described piston shoes is provided with the nanometer graphite layer of selflubricating.
3. the oil hydraulic motor with friction pair with nanometer graphite layer according to claim 1, it is characterized in that the described connecting rod the other end is provided with bulb, the plunger counterpart is provided with hemispherical aperture, the spherical bearing of bulb is in the hemispherical aperture of plunger end on the connecting rod, realize the hinged of the two, the surface of described bulb or hemispherical aperture is provided with the nanometer graphite layer of selflubricating.
4. the oil hydraulic motor with friction pair with nanometer graphite layer according to claim 1 is characterized in that described outer plunger surface is provided with the nanometer graphite layer of selflubricating.
CN2009202572739U 2009-11-05 2009-11-05 Hydraulic motor with nanometer-graphite friction pair Expired - Lifetime CN201560804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202572739U CN201560804U (en) 2009-11-05 2009-11-05 Hydraulic motor with nanometer-graphite friction pair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202572739U CN201560804U (en) 2009-11-05 2009-11-05 Hydraulic motor with nanometer-graphite friction pair

Publications (1)

Publication Number Publication Date
CN201560804U true CN201560804U (en) 2010-08-25

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101713298B (en) * 2009-11-05 2012-03-07 昆山金发液压机械有限公司 Hydraulic motor provided with friction pair with nanometer graphite layer and method for processing nanometer graphite layer
CN102606379A (en) * 2011-06-16 2012-07-25 兰州理工大学 Offset type radial plunger motor of six-star single-action piston cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101713298B (en) * 2009-11-05 2012-03-07 昆山金发液压机械有限公司 Hydraulic motor provided with friction pair with nanometer graphite layer and method for processing nanometer graphite layer
CN102606379A (en) * 2011-06-16 2012-07-25 兰州理工大学 Offset type radial plunger motor of six-star single-action piston cylinder
CN102606379B (en) * 2011-06-16 2014-08-06 兰州理工大学 Offset type radial plunger motor of six-star single-action piston cylinder

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20100825

Effective date of abandoning: 20091105