CN108533605A - Hydraulic motor crank connecting link and preparation method with complex abrasion-proof surface - Google Patents
Hydraulic motor crank connecting link and preparation method with complex abrasion-proof surface Download PDFInfo
- Publication number
- CN108533605A CN108533605A CN201810678786.0A CN201810678786A CN108533605A CN 108533605 A CN108533605 A CN 108533605A CN 201810678786 A CN201810678786 A CN 201810678786A CN 108533605 A CN108533605 A CN 108533605A
- Authority
- CN
- China
- Prior art keywords
- rod
- hydraulic motor
- type
- low power
- connecting rod
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/08—Tin or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C6/00—Coating by casting molten material on the substrate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a kind of hydraulic motor crank connecting links with complex abrasion-proof surface,Including con-rod only,Con-rod only surface is designed with several Z-type very low powers,Con-rod only surface and Z-type microgroove surface are all covered with tin layers,Babbit layer is covered with above tin layers,Several Z-type very low powers region forms band with con-rod only surface surrounding,Surface Texture is provided on band,Z-type very low power quantity is 4~8,Surface Texture is cylinder,Rectangle,Any one form structure in triangle,Babbit layer thickness is 1mm~2.5mm,Roughness is Ra0.8,The invention also discloses the preparation methods of the hydraulic motor crank connecting link with complex abrasion-proof surface,The present invention solves connecting rod of hydraulic motor Slipper coupling existing in the prior art and bears larger shock loading and leads to serious abrasion,Even cause hydraulic fluid leak,The problem of reducing the performance and working efficiency of hydraulic motor (pump).
Description
Technical field
The invention belongs to design, the processing technique fields on hydraulic motor (pump) friction secondary complex abrasion-proof surface, and in particular to
A kind of hydraulic motor crank connecting link with complex abrasion-proof surface, the invention further relates to the hydraulic motors with complex abrasion-proof surface
The preparation method of crank connecting link.
Background technology
As hydraulic motor (pump) constantly develops towards the direction of high speed, high pressure, big flow, rub secondary abrasion or different
Sound phenomenon is also more serious, this also directly limits the performance and used life of hydraulic motor, or even hinders widely to apply.Even
Bar Slipper coupling is the key that one of radial plunger low speed high torque hydraulic motor friction pair, for the bearing capacity and its machine of motor
Tool efficiency plays conclusive effect.At work, connecting rod Slipper coupling bears larger shock loading, leads to serious abrasion,
The serious performance and working efficiency that can cause hydraulic fluid leak, reduce hydraulic motor (pump).The hydraulic motor of reasonable design
Connecting rod Slipper coupling simultaneously improves its lubricating status, and key effect is played for high performance hydraulic motor (pump) development.Research is found
Sufacing can effectively improve wearability.Laser Cladding Treatment such as is carried out to piece surface, material can be improved with refiner material tissue
Expect strength and stiffness, significantly improves polishing machine.Or the combined processing of plasma nitriding and PVD coatings is carried out to surface,
Improve surface abrasion resistance.But under the conditions of high speed, high impact loads, wearing layer is easy to fall off.
So using advanced surface engineering technology, carried in conjunction with Babbitt Metal technology and Surface Texture treatment technology
The surface property for rising iron-based connecting rod, effectively avoids wearing, and extend its service life, is high parameter hydraulic motor military service safety
Key technology.Babbit is most popular bearing material, has anti-attrition characteristic and good embedding Tibetan property, compliance and resists
Occlusion property.It is distributed hard phase particle on the soft base body of babbit, it is recessed in soft base body to make to form minim gap between sliding surface, become
Store oil space and grease channel, are conducive to antifriction.Hard phase particle then play supporting role, and is conducive to carry and improve wearability.
Surface-texturing can get special surface property in the case where not changing material itself.In recent years, with rubbing
Wipe going deep into for theory and experimental study, Surface Texture as change mechanical friction performance controlling technology in recent years by the country
The extensive attention of outer scholar, design, processing, experiment and the numerical analysis of regular surfaces pattern geometric modeling on surface of friction pair
The hot spot for having become research, the research for tribological material surface-texturing are more and more.Surface Texture is secondary high in friction
Hydrldynamic pressure lubrication is advantageously formed when speed movement, improves bearing capacity.Lubricating oil can be stored in low-speed motion carries out secondary confession
Oil reduces abrasion.Surface Texture can inhibit the self-excited vibration of friction system, reduce frictional noise.
Develop towards the direction of the high parameters such as high speed, high pressure, big flow to adapt to hydraulic motor (pump), reduces key and rub
Wipe secondary abrasion, improve performance and the service life of hydraulic motor, the present invention by combining composite coating technology and Surface Texture technology,
Obtain a kind of NEW TYPE OF COMPOSITE surface preparing the soft coating with Surface Texture.
Invention content
The object of the present invention is to provide a kind of hydraulic motor crank connecting links with complex abrasion-proof surface, solve existing skill
Connecting rod of hydraulic motor Slipper coupling, which bears larger shock loading, present in art leads to serious abrasion, or even hydraulic oil is caused to be let out
Leakage reduces the problem of performance and working efficiency of hydraulic motor (pump).
It is a further object of the present invention to provide a kind of preparation sides of the hydraulic motor crank connecting link with complex abrasion-proof surface
Method.
First technical solution of the present invention is the hydraulic motor crank connecting link with complex abrasion-proof surface, including
Con-rod only, con-rod only surface are designed with several Z-type very low powers, and con-rod only surface and Z-type microgroove surface are all covered with
Tin layers, babbit layer is covered with above tin layers, and several Z-type very low powers region forms with con-rod only surface surrounding and seals
Band is provided with Surface Texture on band.
The characteristics of first technical solution of the invention, also resides in,
Z-type very low power quantity is 4~8.
Surface Texture is any one form structure in cylinder, rectangle, triangle.
Babbit layer thickness is 1mm~2.5mm, roughness Ra0.8.
Second technical solution of the present invention is the preparation of the hydraulic motor crank connecting link with complex abrasion-proof surface
Method, which is characterized in that be specifically implemented according to the following steps：
Step 1, the design and preparation of Z-type very low power：
Z-type very low power is symmetrical about rod surface center line, width B=0.5mm~3mm of Z-type very low power translot,
Translot depth h1=0.1mm~1mm, width A=0.5mm~2mm of Z-type very low power skewed slot, skewed slot depth h2=1mm~
1.5mm processes Z-type very low power by milling mode, and Z-type very low power region forms with con-rod only surface surrounding and seals
Band；
Step 2, connecting rod pretreatment：Connecting rod to being designed with Z-type very low power heats, heat preservation, to eliminate the processing of Z-type very low power
The burr generated when processing Z-type very low power is removed on the internal stress of generation, polishing connecting rod surface to be cast, then to be poured to connecting rod
Note surface carries out deoxidation compound.
Step 3, rod surface tining：Immersing saturation solder(ing)acid or saturation chlorine through step 2 treated connecting rod
Change zinc with ammonium chloride mixed aqueous solution, reduce surface tension, the connecting rod of dipped solvent is immersed in tining in the tin of melting immediately, hangs
The surface of good tin is silvery white and light.
Step 4, cast babbit：
The babbit cleaned up is heated to 380 DEG C~420 DEG C by step 4.1, and it is 1%~5% that mass fraction, which is added,
Ammonium chloride or mass fraction be 0.5%~3% carbon dust to prevent babbit from aoxidizing, wait for babbit fusing after, protect
It is warm for use；
Smart step 3 treated connecting rod is packed into cast fixture and clamped by step 4.2, and cast fixture is heated to 350 DEG C
~400 DEG C, the Babbitt Metal that step 4.1 is melted is in rod surface, and cast thickness is 2mm~3mm, 120 DEG C~160
It is cooled to room temperature in DEG C holding furnace, avoids generating excessive thermal stress, to improve binding force, casting complete takes out connecting rod；
Step 4.3 carries out Milling Process to the connecting rod casting surface after step 4.2 casting complete, removes extra Pasteur
Alloy, babbit thickness is 1mm~2.5mm, roughness Ra0.8 after ensureing processing, obtains babbit rod surface；
Step 5, Surface Texture design and processing：
Surface Texture is set on band, and Surface Texture is symmetrical about link centerline, makes the dynamic pressure of generation
It is evenly distributed, connecting rod is avoided to roll, the burr generated when then removing finished surface texture is clear with ultrasonic wave in alcoholic solution
Surface is washed, dries, that is, prepares the hydraulic motor crank connecting link with complex abrasion-proof surface.
The characteristics of second technical solution of the invention, also resides in,
Technological parameter is as follows when being processed to Z-type very low power by milling mode in step 1：Use 2 swords of a diameter of 0.5mm
Coating milling cutter, 0.1~0.15mm/s of feed speed when roughing, 0.2~0.3mm of back engagement of the cutting edge, electro spindle rotating speed 10000~
15000r/min, 0.25~0.05mm/s of feed speed when finishing, 0.05~0.1mm of back engagement of the cutting edge, electro spindle rotating speed 15000
~2000r/min.
850 DEG C~900 DEG C are heated to the connecting rod for being designed with Z-type very low power in step 2, keeps the temperature 2h, polishing connecting rod is to be poured
600~1200# abrasive paper for metallograph is used when noting surface, it is specifically to be with mass concentration to carry out deoxidation compound to connecting rod surface to be cast
5~10wt% hydrochloric acid cleans surface to be cast, reuses mass concentration and is cleaned for 5~10wt% sodium hydroxide solutions, most
5~10min is cleaned in supersonic wave cleaning machine using alcohol afterwards, and is dried.
It is 60~70 DEG C that solder(ing)acid or saturation zinc chloride are saturated in step 3 with ammonium chloride mixed aqueous solution temperature,
Fixture concrete structure is poured into a mould in step 4 is：It is fixed including the fixation panel A being fixed on the base and fixed panel B
Panel A and fixed panel B are mutually perpendicular to surround right angle, with fixed panel A and that fix that panel B is separately connected is drop front A
It surrounds jointly with drop front B, fixed panel A, fixed panel B, drop front A and drop front B and pours cavity, pass through bolt
Fastening, pours and is provided with heat insulation foam on cavity inner wall, wherein the bottoms drop front B are provided with integrally formed V-block, V-block
It is provided with matched V-groove on the pedestal of corresponding position, pull rod is additionally provided on drop front B, pull rod is pushed and pulled by level,
Drop front B can be made to do horizontal rectilinear motion along the V-groove on pedestal, ensure planar differential systems.
Surface Texture diameter d=300~1000 μm in step 5, Surface Texture surface density Sp=5~30%；Surface Texture
Depth hp=10~40 μm；
Using laser marking machine, fabrication design Surface Texture, machined parameters are as follows on band：Laser frequency 10~
30KHz, 20~50mm/s of laser scanning speed, 21~27.5A of electric current, processing times 1~10 time；When removing finished surface texture
The burr of generation is polished with 600~1200# sand paper, and ultrasonic cleaning surface time is 10~15min.
The invention has the advantages that the hydraulic motor crank connecting link with complex abrasion-proof surface, is being machined with Z-type slot
Rod surface pours into a mould babbit, improves the binding force of babbit and matrix, while introducing Surface Texture, in babbit table
Finished surface texture on face, this composite surface not only has the effect of hydrodynamic lubrication, but also has higher compliance and wearability,
To improve bearing capacity, and then reduce abrasion and leakage.
Description of the drawings
Fig. 1 is the hydraulic motor crank connecting link Z-type very low power design drawing that the present invention has complex abrasion-proof surface；
Fig. 2, which is clamping of the present invention, has the cast clamp structure of the hydraulic motor crank connecting link with complex abrasion-proof surface to illustrate
Figure；
Fig. 3 is the cast fixture vertical view that clamping of the present invention has the hydraulic motor crank connecting link with complex abrasion-proof surface；
Fig. 4 is knot when Surface Texture is cylindrical in hydraulic motor crank connecting link of the present invention with complex abrasion-proof surface
Structure schematic diagram；
Fig. 5 is structure when Surface Texture is rectangle in hydraulic motor crank connecting link of the present invention with complex abrasion-proof surface
Schematic diagram.
In figure, 1. con-rod onlies, 2. fix panel A, and 3. fix panel B, 4. heat insulation foams, 5.Z type very low powers, 6. active faces
Plate B, 7. pull rods, 8. pedestals, 9. bands, 10. Surface Textures, 11. drop front A.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention have complex abrasion-proof surface hydraulic motor crank connecting link, structure as shown in Figure 1, include con-rod only 1,
1 surface of con-rod only is designed with several Z-type very low powers 5, and 1 surface of con-rod only and 5 surface of Z-type very low power are all covered with tin layers,
Babbit layer is covered with above tin layers, several 5 regions of Z-type very low power form band with 1 surface surrounding of con-rod only
9, Surface Texture 10 is provided on band.
5 quantity of Z-type very low power is 4~8.
As shown in Fig. 4, Fig. 5 table, Surface Texture 10 is any one form structure in cylinder, rectangle, triangle.
Babbit layer thickness is 1mm~2.5mm, roughness Ra0.8.
The preparation method of hydraulic motor crank connecting link with complex abrasion-proof surface, is specifically implemented according to the following steps：
Step 1, the design and preparation of Z-type very low power 5：
Z-type very low power 5 is symmetrical about rod surface center line, and the width B=0.5mm of 5 translot of Z-type very low power~
3mm, translot depth h1=0.1mm~1mm, width A=0.5mm~2mm of 5 skewed slot of Z-type very low power, skewed slot depth h2=1mm
~1.5mm processes Z-type very low power by milling mode, and 5 region of Z-type very low power is formed with 1 surface surrounding of con-rod only
Band 9, technological parameter is as follows when being processed to Z-type very low power by milling mode：Use the 2 sword coating millings of a diameter of 0.5mm
Knife, 0.1~0.15mm/s of feed speed, 0.2~0.3mm of back engagement of the cutting edge, 10000~15000r/ of electro spindle rotating speed when roughing
Min, 0.25~0.05mm/s of feed speed when finishing, 0.05~0.1mm of back engagement of the cutting edge, electro spindle rotating speed 15000~
2000r/min；
Step 2, connecting rod pretreatment：Connecting rod to being designed with Z-type very low power 5 is heated to 850 DEG C~900 DEG C, keeps the temperature 2h, with
It eliminates Z-type very low power 5 and processes the internal stress generated, using 600~1200# abrasive paper for metallograph polishing connecting rod surface to be cast, remove
The burr generated when Z-type very low power 5 is processed, deoxidation compound then is carried out to connecting rod surface to be cast, to connecting rod surface to be cast
It is specifically to clean surface to be cast with mass concentration for 5~10wt% hydrochloric acid to carry out deoxidation compound, and it is 5 to reuse mass concentration
~10wt% sodium hydroxide solutions clean, and 5~10min are finally cleaned in supersonic wave cleaning machine using alcohol, and dry.
Step 3, rod surface tining：Immersing saturation solder(ing)acid or saturation chlorine through step 2 treated connecting rod
Change zinc with ammonium chloride mixed aqueous solution, saturation solder(ing)acid or saturation zinc chloride are with ammonium chloride mixed aqueous solution temperature
60~70 DEG C, surface tension is reduced, the connecting rod of dipped solvent is immersed in tining in the tin of melting immediately, and the surface for hanging up properly tin is silvery white
Color and light.
Step 4, cast babbit：
The babbit cleaned up is heated to 380 DEG C~420 DEG C by step 4.1, and it is 1%~5% that mass fraction, which is added,
Ammonium chloride or mass fraction be 0.5%~3% carbon dust to prevent babbit from aoxidizing, wait for babbit fusing after, protect
It is warm for use；
Smart step 3 treated connecting rod is packed into cast fixture and clamped by step 4.2, and cast fixture is heated to 350 DEG C
~400 DEG C, the Babbitt Metal that step 4.1 is melted is in rod surface, and cast thickness is 2mm~3mm, 120 DEG C~160
It is cooled to room temperature in DEG C holding furnace, avoids generating excessive thermal stress, to improve binding force, casting complete takes out connecting rod,
In, as shown in Figure 2 and Figure 3, cast fixture concrete structure is：Including the fixation panel A2 being fixed on pedestal 8 and fixed panel
B3, fixed panel A2 and fixed panel B3 are mutually perpendicular to surround right angle, are separately connected with fixed panel A2 and fixed panel B3
It is drop front A11 and drop front B6, fixed panel A2, fixed panel B3, drop front A11 and drop front B6 enclose jointly
It at cavity is poured, is fastened by bolts, pours and be provided with heat insulation foam 4 on cavity inner wall, wherein the bottoms drop front B6 are provided with
Integrally formed V-block is provided with matched V-groove on the pedestal 8 of V-block corresponding position, is also set up on drop front B6
There is pull rod 7, pull rod 7 is pushed and pulled by level, drop front B6 can be made to do horizontal rectilinear motion along the V-groove on pedestal 8, is protected
Demonstrate,prove planar differential systems；
Step 4.3 carries out Milling Process to the connecting rod casting surface after step 4.2 casting complete, removes extra Pasteur
Alloy, babbit thickness is 1mm~2.5mm, roughness Ra0.8 after ensureing processing, obtains babbit rod surface；
Step 5, Surface Texture design and processing：
Surface Texture 10 is set on band 9：Using laser marking machine on band fabrication design Surface Texture, add
Work parameter is as follows：10~30KHz of laser frequency, 20~50mm/s of laser scanning speed, 21~27.5A of electric current, processing times 1~
10 times；It removes the burr generated when finished surface texture to be polished with 600~1200# sand paper, ultrasonic cleaning surface time is 10
~15min, Surface Texture diameter d=300~1000 μm, Surface Texture surface density Sp=5~30%；Surface Texture depth hp=
10~40 μm；Surface Texture 10 is symmetrical about link centerline, and the dynamic pressure of generation is made to be evenly distributed, and avoids connecting rod side
Incline, the burr generated when then removing finished surface texture 10 uses ultrasonic cleaning surface, drying to make in alcoholic solution
The standby hydraulic motor crank connecting link for providing complex abrasion-proof surface.
The present invention has the hydraulic motor crank connecting link on complex abrasion-proof surface, is poured on the connecting rod of crank connecting link hydraulic motor
Simultaneously Surface Texture is prepared on its surface in note babbit, to improve the greasy property and wearability of hydraulic motor, reduces friction
Noise；The preparation method of hydraulic motor crank connecting link with complex abrasion-proof surface improves rod surface by the preparation method
It with the binding force of babbit, avoids at high loads, babbit falls off, and improves the secondary military service performance of connecting rod friction.
Claims (10)
1. the hydraulic motor crank connecting link with complex abrasion-proof surface, which is characterized in that including con-rod only (1), con-rod only
(1) surface is designed with several Z-type very low powers (5), and con-rod only (1) surface and Z-type very low power (5) surface are all covered with tin layers,
Babbit layer is covered with above tin layers, several Z-type very low power (5) regions form close with con-rod only (1) surface surrounding
Band (9) is sealed, Surface Texture (10) is provided on band.
2. the hydraulic motor crank connecting link according to claim 1 with complex abrasion-proof surface, which is characterized in that the Z
Type very low power (5) quantity is 4~8.
3. the hydraulic motor crank connecting link according to claim 1 with complex abrasion-proof surface, which is characterized in that the table
Plane texture (10) is any one form structure in cylinder, rectangle, triangle.
4. the hydraulic motor crank connecting link according to claim 1 with complex abrasion-proof surface, which is characterized in that described bar
Family name's alloy layer thickness is 1mm~2.5mm, roughness Ra0.8.
5. the preparation method of the hydraulic motor crank connecting link with complex abrasion-proof surface, which is characterized in that specifically according to following step
It is rapid to implement：
The design and preparation of step 1, Z-type very low power (5)：
Z-type very low power (5) is symmetrical about rod surface center line, and the width B=0.5mm of Z-type very low power (5) translot~
3mm, translot depth h1=0.1mm~1mm, the width A=0.5mm~2mm of Z-type very low power (5) skewed slot, skewed slot depth h2=
1mm~1.5mm processes Z-type very low power by milling mode, Z-type very low power (5) region and con-rod only (1) surface
Surrounding forms band (9)；
Step 2, connecting rod pretreatment：Connecting rod to being designed with Z-type very low power (5) heats, and heat preservation is added with eliminating Z-type very low power (5)
The burr generated when processing Z-type very low power (5) is removed, then to connecting rod in the internal stress that work generates, polishing connecting rod surface to be cast
Surface to be cast carries out deoxidation compound；
Step 3, rod surface tining：Immersing saturation solder(ing)acid or saturation zinc chloride through step 2 treated connecting rod
With ammonium chloride mixed aqueous solution, surface tension is reduced, the connecting rod of dipped solvent is immersed in tining in the tin of melting, hangs up properly tin immediately
Surface be silvery white and light；
Step 4, cast babbit：
The babbit cleaned up is heated to 380 DEG C~420 DEG C by step 4.1, and the chlorine that mass fraction is 1%~5% is added
The carbon dust that change ammonium or mass fraction are 0.5%~3% is to prevent babbit from aoxidizing, and after waiting for babbit fusing, heat preservation waits for
With；
Smart step 3 treated connecting rod is packed into cast fixture and clamped by step 4.2, will cast fixture be heated to 350 DEG C~
400 DEG C, the Babbitt Metal that step 4.1 is melted is in rod surface, and cast thickness is 2mm~3mm, at 120 DEG C~160 DEG C
It is cooled to room temperature in holding furnace, avoids generating excessive thermal stress, to improve binding force, casting complete takes out connecting rod；
Step 4.3 carries out Milling Process to the connecting rod casting surface after step 4.2 casting complete, removes extra babbit,
Babbit thickness is 1mm~2.5mm, roughness Ra0.8 after ensureing processing, obtains babbit rod surface；
Step 5, Surface Texture design and processing：
Surface Texture (10) is set on band (9), and Surface Texture (10) is symmetrical about link centerline, makes generation
Dynamic pressure is evenly distributed, and connecting rod is avoided to roll, the burr generated when then removing finished surface texture (10), in alcoholic solution
With ultrasonic cleaning surface, the hydraulic motor crank connecting link with complex abrasion-proof surface is prepared in drying.
6. the preparation method of the hydraulic motor crank connecting link according to claim 5 with complex abrasion-proof surface, feature
It is, technological parameter is as follows when being processed to Z-type very low power by milling mode in the step 1：Use the 2 of a diameter of 0.5mm
Sword coating milling cutter, 0.1~0.15mm/s of feed speed when roughing, 0.2~0.3mm of back engagement of the cutting edge, electro spindle rotating speed 10000~
15000r/min, 0.25~0.05mm/s of feed speed when finishing, 0.05~0.1mm of back engagement of the cutting edge, electro spindle rotating speed 15000
~2000r/min.
7. the preparation method of the hydraulic motor crank connecting link according to claim 5 with complex abrasion-proof surface, feature
It is, 850 DEG C~900 DEG C is heated to the connecting rod for being designed with Z-type very low power in the step 2, keep the temperature 2h, polishing connecting rod is to be poured
600~1200# abrasive paper for metallograph is used when noting surface, it is specifically to be with mass concentration to carry out deoxidation compound to connecting rod surface to be cast
5~10wt% hydrochloric acid cleans surface to be cast, reuses mass concentration and is cleaned for 5~10wt% sodium hydroxide solutions, most
5~10min is cleaned in supersonic wave cleaning machine using alcohol afterwards, and is dried.
8. the preparation method of the hydraulic motor crank connecting link according to claim 5 with complex abrasion-proof surface, feature
It is, it is 60~70 DEG C that solder(ing)acid or saturation zinc chloride are saturated in the step 3 with ammonium chloride mixed aqueous solution temperature.
9. the preparation method of the hydraulic motor crank connecting link according to claim 5 with complex abrasion-proof surface, feature
It is, fixture concrete structure is poured into a mould in the step 4 is：Including fixation panel A (2) and the stationary plane being fixed on pedestal (8)
Plate B (3), fixed panel A (2) and fixed panel B3 are mutually perpendicular to surround right angle, with fixed panel A (2) and fixed panel B (3)
That be separately connected is drop front A (11) and drop front B (6), fixed panel A (2), fixed panel B (3), drop front A
(11) it surrounds jointly with drop front B (6) and pours cavity, be fastened by bolts, pour and be provided with heat insulation foam on cavity inner wall
(4), wherein drop front B (6) bottom is provided with integrally formed V-block, is provided on the pedestal (8) of V-block corresponding position
Matched V-groove is additionally provided with pull rod (7) on drop front B (6), pushes and pulls pull rod (7) by level, can make active face
Plate B (6) does horizontal rectilinear motion along the V-groove on pedestal (8), ensures planar differential systems.
10. the preparation method of the hydraulic motor crank connecting link according to claim 5 with complex abrasion-proof surface, feature
It is, Surface Texture diameter d=300~1000 μm in the step 5, Surface Texture surface density Sp=5~30%；Surface Texture
Depth hp=10~40 μm；
Using laser marking machine, fabrication design Surface Texture, machined parameters are as follows on band：10~30KHz of laser frequency,
20~50mm/s of laser scanning speed, 21~27.5A of electric current, processing times 1~10 time；It is generated when removal finished surface texture
Burr is polished with 600~1200# sand paper, and ultrasonic cleaning surface time is 10~15min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810678786.0A CN108533605B (en) | 2018-06-27 | 2018-06-27 | Hydraulic motor crank connecting rod with composite wear-resistant surface and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810678786.0A CN108533605B (en) | 2018-06-27 | 2018-06-27 | Hydraulic motor crank connecting rod with composite wear-resistant surface and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533605A true CN108533605A (en) | 2018-09-14 |
| CN108533605B CN108533605B (en) | 2021-02-12 |
Family
ID=63487330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810678786.0A Active CN108533605B (en) | 2018-06-27 | 2018-06-27 | Hydraulic motor crank connecting rod with composite wear-resistant surface and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533605B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594232A (en) * | 2019-09-19 | 2019-12-20 | 陈春友 | Vane type anti-back flushing hydraulic motor with different transportation temperatures |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335088Y (en) * | 2009-01-20 | 2009-10-28 | 四机赛瓦石油钻采设备有限公司 | Crosshead |
| CN202572040U (en) * | 2012-03-30 | 2012-12-05 | 鞍钢股份有限公司 | Novel rear pad for roll grinder |
| DE102012014114A1 (en) * | 2012-07-17 | 2014-01-23 | Daimler Ag | Roughening of metal surfaces, comprises carrying out material-removing treatment of surface, and generating material-removing treatment structures having substantially orthogonal development for estimated loading direction and undercuts |
| CN205207436U (en) * | 2015-11-25 | 2016-05-04 | 湖南崇德工业科技有限公司 | Plain bearing bush insulation system and axle bush |
-
2018
- 2018-06-27 CN CN201810678786.0A patent/CN108533605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335088Y (en) * | 2009-01-20 | 2009-10-28 | 四机赛瓦石油钻采设备有限公司 | Crosshead |
| CN202572040U (en) * | 2012-03-30 | 2012-12-05 | 鞍钢股份有限公司 | Novel rear pad for roll grinder |
| DE102012014114A1 (en) * | 2012-07-17 | 2014-01-23 | Daimler Ag | Roughening of metal surfaces, comprises carrying out material-removing treatment of surface, and generating material-removing treatment structures having substantially orthogonal development for estimated loading direction and undercuts |
| CN205207436U (en) * | 2015-11-25 | 2016-05-04 | 湖南崇德工业科技有限公司 | Plain bearing bush insulation system and axle bush |
Non-Patent Citations (2)
| Title |
|---|
| 张东亚，张辉，秦立果，董光能: "表面织构对巴氏合金轴承材料摩擦学性能影响", 《华中科技大学学报（自然科学版）》 * |
| 王博: "表面织构技术对高水基液压马达滑靴副摩擦学性能影响研究", 《中国矿业大学硕士学位论文》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594232A (en) * | 2019-09-19 | 2019-12-20 | 陈春友 | Vane type anti-back flushing hydraulic motor with different transportation temperatures |
| CN110594232B (en) * | 2019-09-19 | 2020-12-01 | 墙煌新材料股份有限公司 | Vane type anti-back flushing hydraulic motor with different transportation temperatures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108533605B (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109623180A (en) | A kind of silk material electric arc increasing material manufacturing method of magnesium alloy | |
| CN109807558A (en) | A kind of silk material electric arc increasing material manufacturing method of titanium alloy | |
| CN101275606A (en) | Manufacturing process of high-power low-speed diesel shaft bushing | |
| CN100469529C (en) | Integrated magnetic rheological polishing method of mould and parts | |
| CN106736313B (en) | Go electroplating shaft bushing production technology | |
| CN101219512A (en) | Ultrasonic executing agency and processing method for plane ultrasonic surface rolling | |
| WO2019128210A1 (en) | Method for improving surface abrasion resistance of aluminum alloy under dry friction condition | |
| US20170122247A1 (en) | Method of forming a cylinder liner | |
| JP2005307857A (en) | Cylinder block and its manufacturing method | |
| CN102513913A (en) | Post treatment method for micro-arc oxidation of aluminum alloy | |
| CN110842749B (en) | Combined closed cavity vibration type barreling and polishing device and method for processing blade surface | |
| CN108533605A (en) | Hydraulic motor crank connecting link and preparation method with complex abrasion-proof surface | |
| CN113681233A (en) | Rapid and efficient local repair method for crystallizer copper plate | |
| CN109826786B (en) | Machining method of aluminum alloy shell for pump | |
| CN112893942A (en) | Precise micro-milling method for high-volume silicon carbide particle reinforced aluminum matrix composite | |
| CN117026336A (en) | Preparation method of cylinder liner with micro-texture surface nickel-chromium self-lubricating coating | |
| CN102672290A (en) | Electrochemistry-mechanical composite passivating method of cutting edge of hard alloy cutter | |
| CN110588228A (en) | Device and method for processing inner surface texture of sliding bearing of marine diesel engine | |
| CN212504990U (en) | Processing device for realizing surface nanocrystallization of crankshaft device | |
| CN111945158A (en) | Composite treatment method for improving wear resistance of metal surface | |
| CN106583845A (en) | Process for machining casting holes with diamond reamer | |
| JP2011017277A (en) | Metallic material sliding surface structure, cylinder for internal combustion engine, and metallic material sliding surface forming method | |
| CN114774831A (en) | Textured babbit metal coating antifriction surface and preparation method thereof | |
| CN206825234U (en) | One kind dipping extra hard material grinding wheel | |
| JP2006315127A (en) | Removing method and grinding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |