CN108468708A - A kind of processing of automobile connecting rod spherical hinge structure and heat aging technique - Google Patents
A kind of processing of automobile connecting rod spherical hinge structure and heat aging technique Download PDFInfo
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- CN108468708A CN108468708A CN201810321943.2A CN201810321943A CN108468708A CN 108468708 A CN108468708 A CN 108468708A CN 201810321943 A CN201810321943 A CN 201810321943A CN 108468708 A CN108468708 A CN 108468708A
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- flexural pivot
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0657—Construction or details of the socket member the socket member being mainly made of plastics
-
- 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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/068—Special features relating to lubrication
-
- 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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0685—Manufacture of ball-joints and parts thereof, e.g. assembly of ball-joints
-
- 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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0695—Mounting of ball-joints, e.g. fixing them to a connecting rod
-
- 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
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/10—Hardening, e.g. carburizing, carbo-nitriding
-
- 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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/52—Positive connections with plastic deformation, e.g. caulking or staking
-
- 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
- F16C2326/00—Articles relating to transporting
- F16C2326/20—Land vehicles
- F16C2326/24—Steering systems, e.g. steering rods or columns
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The present invention relates to the manufacturing process of steering ball end,More particularly to a kind of processing of automobile connecting rod bulb part and heat aging technique,Wherein,The spherical hinge structure of bulb part is from inside to outside successively by ball pin,Ball pin seat,Ball pin covers and bottom plate composition,Lubricating grease uniform is coated between the spherical surface friction pair between ball pin and ball pin seat,And the first normalizing process is respectively adopted,Second normalizing process,Third normalizing process,First annealing process and the second annealing process,Heat aging processing is carried out to above-mentioned spherical hinge structure,The flexural pivot endurance test index obtained after heat aging is excellent,Processing relative to traditional spherical hinge structure and heat aging technique,The manufacturing process of the present invention can be such that flexural pivot properties of product stablize,Service life is long,It can especially make rotation/shaking moment value of flexural pivot in automobile connecting rod steadily in the long term within a certain range,The out-of-service time of flexural pivot in use is delayed significantly.
Description
Technical field
The present invention relates to the manufacturing process of steering ball end more particularly to a kind of processing of automobile connecting rod bulb part and heat
Aging technique.
Background technology
Flexural pivot is a kind of connecting hinge secondary with the friction of space spherical surface, mainly includes four components, respectively ball pin,
Ball seat, ball cover and bottom plate realize that flexural pivot is relatively rotated around the public centre of sphere by certain connection relation, limit their three directions
Relative movement.Flexural pivot is widely used in connecting rod, pull rod and swing arm under the rotational structure of component, such as automobile chassis,
The opposite of two rod pieces is realized by the rotation of spherical hinge structure spherical pair by the way that flexural pivot is arranged in the connecting pin of two rod pieces
Rotation.
However, existing either connecting rod, pull rod or swing arm, there is rotation/shaking moment mistake in spherical hinge structure
Low or excessively high problem, since the structures such as connecting rod for automobile have the durable requirement of certain time, and it uses ring
Border is complicated, such as high temperature, low temperature, paddles, dries, corrode environment, and rotation/shaking moment of spherical hinge structure is in above-mentioned complexity ring
Fatigue wear can occur with the extension of service life under border, and then lead to the irreversible damages such as torque loss, thus this
To spherical hinge structure and its manufacturing process, more stringent requirements are proposed.Meanwhile the endurance test of flexural pivot be it is a kind of simulation its in reality
Emulation test methods during the use of border, with the conditions such as true temperature and humidity, test index can be used as verification ball
The important parameter of hinge processing and heat aging technique.Existing processing is with automobile connecting rod flexural pivot made from heat aging technique in durable examination
Test that the decline of middle torque is big, stability is not high, while its every test index is unsatisfactory, such as the radial displacement under certain load
It is too small etc. with axial displacement.
It is as above that the present invention proposes that a kind of processing of automobile connecting rod spherical hinge structure is solved the problems, such as with heat aging technique.
Invention content
To solve drawbacks described above in the prior art, the present invention discloses a kind of processing of automobile connecting rod spherical hinge structure and heat
Aging technique, it is realized using following technical scheme.
A kind of processing of automobile connecting rod spherical hinge structure and heat aging technique, it is characterised in that：Spherical hinge structure is mainly by ball
Pin, ball pin seat, ball pin set, bottom plate and grease composition, the ball pin set is welded to connect with automobile connecting rod to be integrated, the ball
The mounting structure of hinge be followed successively by from inside to outside ball pin, ball pin seat, ball pin set and bottom plate, wherein the ball pin be one end be ball,
The other end carries externally threaded quarter butt, and ball one end of the ball pin is coated by the ball pin seat made of high molecular material,
Its mating surface is clearance fit, and the ball pin and ball pin seat are formed between the spherical outside surface of the ball pin, the Internal Spherical Surface of ball pin seat
Spherical surface friction is secondary, and is uniformly coated with the lubricating grease in spherical surface friction pair, in the ball pin by the ball pin seat packet
Before covering, which has been evenly applied on the ball pin spherical outside surface, and after the ball pin is coated by ball pin seat, institute
It states in the spherical surface friction pair that lubricating grease is just uniformly distributed between above-mentioned ball pin and ball pin seat；The ball pin seat of ball pin is coated with along ball
The central axes direction of key seat is pressure bonded in hollow column ball pin set, and the ball pin seat after being pressed is sleeved on radial direction with ball pin
Interference fit；Bottom plate is less than the internal diameter that the column ball pin covers for the diameter with certain thickness circular bottom plate, the bottom plate,
The bottom plate is flat on the ball pin seat bottom and is located at the bottom opening of the column ball pin set, by along described
The circumference rotation riveting of bottom plate realizes that the ball pin set and the riveting of the bottom plate are fixed, at this point, the ball pin seat is by the ball pin
Set and the bottom plate are coated and fixed, and the ball pin can be freely rotated and swing along its axis；Linear advancement speed is riveted by setting
Degree and propulsion stroke, can make flexural pivot rotating torque reach default moment values with shaking moment.
The heat aging technique of above-mentioned spherical hinge structure is as follows：
1）It sets the riveting linear advancement speed of flexural pivot and promotes stroke, the average wobble for making flexural pivot be measured before heat aging
Torque is higher by at least 15%-20% of the above-mentioned torque requirement value upper limit with average rotation torque；
2）Flexural pivot is put into box normalizing furnace and carries out the first normalizing process；Temperature is to the first pole in the internally heated oven of 10min
55-60 DEG C of temperature is limited, in-furnace temperature rises linearly over time, under the first limiting temperature, by flexural pivot in stove inside holding 3min, so
After take out flexural pivot, using flexural pivot ball pin cover central axes as rotary shaft, rotate and swing ball pin respectively using torque spanner, make ball pin with
Lubricating grease uniform between ball pin seat be distributed in the spherical surface between ball pin and ball pin seat friction pair on, wherein rotational angle be ±
720 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
2）Flexural pivot is put into box normalizing furnace and carries out the second normalizing process；Temperature is to the second pole in the internally heated oven of 15min
50-55 DEG C of temperature is limited, parabola rises in-furnace temperature at any time, under the second limiting temperature, by flexural pivot in stove inside holding 5min,
Flexural pivot is then taken out, central axes are covered as rotary shaft using flexural pivot ball pin, is rotated respectively using torque spanner and swings ball pin, wherein
Rotational angle be ± 1080 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
3）Flexural pivot is placed at ambient temperature about 24 hours；
4）Flexural pivot is put into progress third normalizing process in box normalizing furnace；Temperature is to third pole in the internally heated oven of 20min
45-50 DEG C of temperature is limited, parabola rises in-furnace temperature at any time, under third limiting temperature, by flexural pivot in stove inside holding
10min then takes out flexural pivot, covers central axes as rotary shaft using flexural pivot ball pin, rotates and swing ball pin respectively using torque spanner,
The spherical surface that the lubricating grease uniform between ball pin and ball pin seat is distributed between ball pin and ball pin seat is set to rub in pair, wherein rotation
Angle be ± 1440 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
5）Flexural pivot is put into box-annealing furnace and carries out the first annealing process；Temperature is to the 4th limit in the internally heated oven of 5min
60-65 DEG C of temperature, in-furnace temperature ramps at any time, then takes out flexural pivot, covers central axes as rotary shaft using flexural pivot ball pin, makes
It is rotated respectively with torque spanner and swings ball pin, wherein rotational angle is ± 1440 °, and swing angle is ± maximum pendulum angle, then
Room temperature is cooled to the furnace in stove by flexural pivot；
6）Flexural pivot is put into box-annealing furnace and carries out the second annealing process；Temperature is to the 5th pole in the internally heated oven of 10min
50-55 DEG C of temperature is limited, in-furnace temperature ramps at any time, then takes out flexural pivot, using flexural pivot ball pin set central axes as rotary shaft,
It being rotated respectively using torque spanner and swings ball pin, wherein rotational angle is ± 1440 °, and swing angle is ± maximum pendulum angle, and
Afterwards room temperature is cooled to the furnace in stove by flexural pivot.
As being further improved for this technology, the room temperature is 22 DEG C Celsius；First limiting temperature is 58-59 DEG C；
Second limiting temperature is 53-54 DEG C；The third limiting temperature is 48-49 DEG C；4th limiting temperature is 63-64
℃；5th limiting temperature is 53-54 DEG C.
As being further improved for this technology, above-mentioned spherical hinge structure is alternatively arranged as the ball head structure of automobile pull rod.
As being further improved for this technology, ball stud lubricating grease should meet claimed below：
1, product appearance cannot be black；
2, with good heat-resisting quantity, low evaporation loss and high-temperature oxidation stability, wherein maximum operation (service) temperature 130
Degree, minimum temperature in use are -40 degree；
3, there is extreme-pressure wear-resistant, water-resistance, rust-preventing characteristic；
4, there are certain consistency and Adhesion property, to ensure that ball stud works normally.
Processing and heat aging technique, manufacturing process of the invention relative to traditional spherical hinge structure can make flexural pivot product
Energy is stablized, service life is long, can especially make rotation/shaking moment value of flexural pivot in automobile connecting rod steadily in the long term in certain
Within the scope of, the out-of-service time of flexural pivot in use is delayed significantly.
Description of the drawings
Fig. 1 (a), Fig. 1 (b) are automobile connecting rod or so view respectively.
Fig. 2 is spherical hinge structure schematic diagram.
Fig. 3 is flexural pivot heat aging process flow chart.
Fig. 4 is the torque fluctuations curve in the flexural pivot endurance test after heat aging technique.
Figure label title：1, ball pin；2, ball pin seat；3, ball pin set；4, bottom plate.
Specific implementation mode
It is the left and right view of automobile connecting rod as shown in Figure 1, one section of above-mentioned connecting rod is the ball pin in spherical hinge structure
Set 3, above-mentioned ball pin set 3 is welded to connect with connecting rod to be integrated.It is illustrated in figure 2 the spherical hinge structure of one section of above-mentioned automobile connecting rod
Schematic diagram, the spherical hinge structure is mainly by ball pin 1, ball pin seat 2, ball pin set 3, bottom plate 4 and grease composition, the installation of the flexural pivot
Structure is followed successively by ball pin 1, ball pin seat 2, ball pin set 3 and bottom plate 4 from inside to outside, wherein the ball pin 1 be that one end is ball, separately
One end carries externally threaded quarter butt, and ball one end of the ball pin 1 is coated by the ball pin seat 2 made of high molecular material,
Its mating surface is clearance fit, the ball pin 1 and ball pin seat 2 between the spherical outside surface of the ball pin 1, the Internal Spherical Surface of ball pin seat 2
It is secondary to form spherical surface friction, and the lubricating grease is uniformly coated in spherical surface friction pair, in the ball pin 1 by the ball pin
Before 2 cladding of seat, which has been evenly applied on 1 spherical outside surface of the ball pin, and is wrapped by ball pin seat 2 in the ball pin 1
After covering, the lubricating grease is just uniformly distributed in the friction pair of the spherical surface between above-mentioned ball pin 1 and ball pin seat 2；It is coated with ball pin 1
Ball pin seat 2 be pressure bonded in hollow column ball pin set 3 along the central axes direction of ball pin seat 2, the ball pin seat 2 after being pressed with
Ball pin set 3 is interference fitted in radial direction；Bottom plate 4 is with certain thickness circular bottom plate, and the diameter of the bottom plate 4 is less than institute
The bottom plate 4 is flat on 2 bottom of the ball pin seat and is located at the column ball pin set 3 by the internal diameter for stating column ball pin set 3
Bottom opening at, realize that the riveting of ball pin set 3 and the bottom plate 4 is fixed by revolving riveting along the circumference of the bottom plate 4,
At this point, the ball pin seat 2 by the ball pin set 3 and the bottom plate 4 be coated and fixed, the ball pin can be freely rotated along its axis with
It swings；Linear advancement speed is riveted by setting and promotes stroke, and flexural pivot rotating torque can be made to reach pre set force with shaking moment
Square value.
The heat aging technique of above-mentioned spherical hinge structure is as follows：
1）It sets the riveting linear advancement speed of flexural pivot and promotes stroke, the average wobble for making flexural pivot be measured before heat aging
Torque is higher by at least 15%-20% of the above-mentioned torque requirement value upper limit with average rotation torque；
2）Flexural pivot is put into box normalizing furnace and carries out the first normalizing process；Temperature is to the first pole in the internally heated oven of 10min
55-60 DEG C of temperature is limited, in-furnace temperature rises linearly over time, under the first limiting temperature, by flexural pivot in stove inside holding 3min, so
After take out flexural pivot, using flexural pivot ball pin cover 3 central axes as rotary shaft, rotate and swing ball pin 1 respectively using torque spanner, make ball pin
Lubricating grease uniform between 1 and ball pin seat 2 is distributed in the friction pair of the spherical surface between ball pin 1 and ball pin seat 2, wherein angle of rotation
Degree be ± 720 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
2）Flexural pivot is put into box normalizing furnace and carries out the second normalizing process；Temperature is to the second pole in the internally heated oven of 15min
50-55 DEG C of temperature is limited, parabola rises in-furnace temperature at any time, under the second limiting temperature, by flexural pivot in stove inside holding 5min,
Flexural pivot is then taken out, 3 central axes are covered as rotary shaft using flexural pivot ball pin, rotate and swing ball pin 1 respectively using torque spanner,
In, rotational angle be ± 1080 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
3）Flexural pivot is placed at ambient temperature about 24 hours；
4）Flexural pivot is put into progress third normalizing process in box normalizing furnace；Temperature is to third pole in the internally heated oven of 20min
45-50 DEG C of temperature is limited, parabola rises in-furnace temperature at any time, under third limiting temperature, by flexural pivot in stove inside holding
10min then takes out flexural pivot, covers 3 central axes as rotary shaft using flexural pivot ball pin, is rotated respectively using torque spanner and swing ball pin
1, so that the spherical surface that the lubricating grease uniform between ball pin 1 and ball pin seat 2 is distributed between ball pin 1 and ball pin seat 2 is rubbed in pair,
In, rotational angle be ± 1440 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
5）Flexural pivot is put into box-annealing furnace and carries out the first annealing process；Temperature is to the 4th limit in the internally heated oven of 5min
60-65 DEG C of temperature, in-furnace temperature ramps at any time, then takes out flexural pivot, using 3 central axes of flexural pivot ball pin set as rotary shaft,
It being rotated respectively using torque spanner and swings ball pin 1, wherein rotational angle is ± 1440 °, and swing angle is ± maximum pendulum angle,
Then room temperature is cooled to the furnace in stove by flexural pivot.
6）Flexural pivot is put into box-annealing furnace and carries out the second annealing process；Temperature is in the internally heated oven of 10min
Five 50-55 DEG C of limiting temperatures, in-furnace temperature ramps at any time, then takes out flexural pivot, and it is rotation to cover 3 central axes with flexural pivot ball pin
Shaft is rotated using torque spanner and swings ball pin 1 respectively, wherein rotational angle is ± 1440 °, and swing angle is ± maximum
Pivot angle then cools to room temperature with the furnace by flexural pivot in stove.
As being further improved for this technology, the room temperature is 22 DEG C Celsius；First limiting temperature is 58-59 DEG C；
Second limiting temperature is 53-54 DEG C；The third limiting temperature is 48-49 DEG C；4th limiting temperature is 63-64
℃；5th limiting temperature is 53-54 DEG C.
As being further improved for this technology, above-mentioned spherical hinge structure is alternatively arranged as the ball head structure of automobile pull rod.
As being further improved for this technology, ball stud lubricating grease should meet claimed below：
1, product appearance cannot be black；
2, with good heat-resisting quantity, low evaporation loss and high-temperature oxidation stability, wherein maximum operation (service) temperature 130
Degree, minimum temperature in use are -40 degree；
3, there is extreme-pressure wear-resistant, water-resistance, rust-preventing characteristic；
4, there are certain consistency and Adhesion property, to ensure that ball stud works normally.
To verify the heat aging technological effect of above-mentioned flexural pivot, endurance test performance now is carried out to production line last batch flexural pivot
Test, test major parameter are rotating torque, shaking moment, radial load displacement and the axial load displacement of flexural pivot, specifically
Select 100 flexural pivot connecting rods as test specimen, the above-mentioned parameter average value for measuring 100 samples participates in Fig. 4, wherein to survey
Strip part is as follows：
1, experimental enviroment：20±2.5℃；
2, along ball pin axial direction（Draw direction）Apply permanent load 1KN；
3, radially apply reciprocal load ± 5KN, loading frequency 1Hz along ball pin；
4, swing angle is the 1/2 of full swing angle（I.e. ± 12.5 °）, hunting frequency 1Hz；
5, radial loaded and swing are consistent in direction, frequency；
6, rotation angle ± 40 °, 0.9 ± 0.1Hz of speed（Actually 0.9Hz）
7, number of revolutions 500000 times
Testing standard is as follows：
Durable preceding displacement：Axial direction≤0.2mm/ ± 1.5KN, radial direction≤0.25mm/ ± 3KN, radial direction≤0.5mm/ ± 6KN；It is durable
It rotates 200,000 times, rotates 400,000 times and resistance to long afterwards by GMW15768 standard testings assembly axial direction, radial displacement in the process.Axial position
Shifting≤1.5mm/ ± 1.5KN MAX；Radial displacement≤1.25mm/3.0KN MAX.
By every key parameter of flexural pivot in Fig. 4 it is found that flexural pivot of the present invention processing can make ball with heat aging technique
Hinge properties of product are stable, key index is excellent, can especially make rotation/shaking moment value of flexural pivot in automobile connecting rod long-term
It is stable within a certain range, delays the out-of-service time of flexural pivot in use significantly.The endurance test of flexural pivot is not
Its important indicator is set to reduce excessive, compared to index of the existing flexural pivot product after endurance test, through ball of the present invention
With after heat aging technique, every important indicator is excellent for hinge processing, and stablizes.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of processing technology of automobile connecting rod spherical hinge structure, it is characterised in that：Spherical hinge structure mainly by ball pin, ball pin seat,
Ball pin set, bottom plate and grease composition, the ball pin set is welded to connect with automobile connecting rod to be integrated, the installation knot of the flexural pivot
Structure is followed successively by ball pin, ball pin seat, ball pin set and bottom plate from inside to outside, wherein the ball pin is that one end is that ball, the other end carry
Ball one end of externally threaded quarter butt, the ball pin is coated by the ball pin seat made of high molecular material, and mating surface is
Clearance fit, the ball pin and ball pin seat form spherical surface friction pair between the spherical outside surface of the ball pin, the Internal Spherical Surface of ball pin seat,
And it is uniformly coated with the lubricating grease in spherical surface friction pair, before the ball pin is coated by the ball pin seat, the profit
Consistent lubricant has been evenly applied on the ball pin spherical outside surface, and after the ball pin is coated by ball pin seat, the lubricating grease is
It is uniformly distributed in the spherical surface friction pair between the ball pin and ball pin seat；The ball pin seat of the ball pin is coated with along ball pin seat
Central axes direction is pressure bonded in hollow column ball pin set, and the ball pin seat after being pressed is sleeved on radial direction interference with ball pin and matches
It closes；The bottom plate is slightly less than the internal diameter of the column ball pin set for the diameter with certain thickness circular bottom plate, the bottom plate,
The bottom plate is flat on the ball pin seat bottom and is located at the bottom opening of the column ball pin set, by along described
The circumference rotation riveting of bottom plate realizes that the ball pin set and the riveting of the bottom plate are fixed, at this point, the ball pin seat is by the ball pin
Set and the bottom plate are coated and fixed, and the ball pin can be freely rotated and swing along its axis；Linear advancement speed is riveted by setting
Degree and propulsion stroke, can make flexural pivot rotating torque reach default moment values with shaking moment.
2. a kind of automobile connecting rod flexural pivot heat aging technique using processing technology described in claim 1, it is characterised in that：
1）It sets the riveting linear advancement speed of flexural pivot and promotes stroke, the average wobble for making flexural pivot be measured before heat aging
Torque is higher by at least 15%-20% of the above-mentioned torque requirement value upper limit with average rotation torque；
2）Flexural pivot is put into box normalizing furnace and carries out the first normalizing process；Temperature is to the first pole in the internally heated oven of 10min
55-60 DEG C of temperature is limited, in-furnace temperature rises linearly over time, under the first limiting temperature, by flexural pivot in stove inside holding 3min, so
After take out flexural pivot, using flexural pivot ball pin cover central axes as rotary shaft, rotate and swing ball pin respectively using torque spanner, make ball pin with
Lubricating grease uniform between ball pin seat be distributed in the spherical surface between ball pin and ball pin seat friction pair on, wherein rotational angle be ±
720 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
3）Flexural pivot is put into box normalizing furnace and carries out the second normalizing process；Temperature is to the second pole in the internally heated oven of 15min
50-55 DEG C of temperature is limited, parabola rises in-furnace temperature at any time, under the second limiting temperature, by flexural pivot in stove inside holding 5min,
Flexural pivot is then taken out, central axes are covered as rotary shaft using flexural pivot ball pin, is rotated respectively using torque spanner and swings ball pin, wherein
Rotational angle be ± 1080 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
4）Flexural pivot is placed at ambient temperature about 24 hours；
5）Flexural pivot is put into progress third normalizing process in box normalizing furnace；Temperature is to third pole in the internally heated oven of 20min
45-50 DEG C of temperature is limited, parabola rises in-furnace temperature at any time, under third limiting temperature, by flexural pivot in stove inside holding
10min then takes out flexural pivot, covers central axes as rotary shaft using flexural pivot ball pin, rotates and swing ball pin respectively using torque spanner,
The spherical surface that the lubricating grease uniform between ball pin and ball pin seat is distributed between ball pin and ball pin seat is set to rub in pair, wherein rotation
Angle be ± 1440 °, swing angle be ± maximum pendulum angle, then by flexural pivot outside stove cooled to room temperature；
6）Flexural pivot is put into box-annealing furnace and carries out the first annealing process；Temperature is to the 4th limit in the internally heated oven of 5min
60-65 DEG C of temperature, in-furnace temperature ramps at any time, then takes out flexural pivot, covers central axes as rotary shaft using flexural pivot ball pin, makes
It is rotated respectively with torque spanner and swings ball pin, wherein rotational angle is ± 1440 °, and swing angle is ± maximum pendulum angle, then
Room temperature is cooled to the furnace in stove by flexural pivot；
7）Flexural pivot is put into box-annealing furnace and carries out the second annealing process；Temperature is to the 5th pole in the internally heated oven of 10min
50-55 DEG C of temperature is limited, in-furnace temperature ramps at any time, then takes out flexural pivot, using flexural pivot ball pin set central axes as rotary shaft,
It being rotated respectively using torque spanner and swings ball pin, wherein rotational angle is ± 1440 °, and swing angle is ± maximum pendulum angle, and
Afterwards room temperature is cooled to the furnace in stove by flexural pivot.
3. automobile connecting rod flexural pivot heat aging technique according to claim 2, it is characterised in that：The room temperature is Celsius 22
℃；First limiting temperature is preferably 58-59 DEG C；Second limiting temperature is preferably 53-54 DEG C；The third limit temperature
Preferably 48-49 DEG C of degree；4th limiting temperature is preferably 63-64 DEG C.
4. automobile connecting rod flexural pivot heat aging technique according to claim 2, it is characterised in that：Above-mentioned spherical hinge structure may be used also
Ball head structure as automobile pull rod.
5. according to claim 2-4 any one of them automobile connecting rod flexural pivot heat aging techniques, it is characterised in that：The lubrication
Fat should meet claimed below：Product appearance cannot be black；With good heat-resisting quantity, low evaporation loss and high-temperature oxydation
Stability, wherein the maximum operation (service) temperature of the lubricating grease is 130 degree, and minimum temperature in use is -40 degree；With extreme-pressure wear-resistant
Property, water-resistance, rust-preventing characteristic；There are certain consistency and Adhesion property, to ensure that flexural pivot works normally.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910826564.3A CN110396576B (en) | 2018-04-11 | 2018-04-11 | Machining and thermal aging process for spherical hinge structure of automobile connecting rod |
| CN201910826552.0A CN110396577B (en) | 2018-04-11 | 2018-04-11 | Machining and thermal aging process for spherical hinge structure of automobile connecting rod |
| CN201810321943.2A CN108468708B (en) | 2018-04-11 | 2018-04-11 | A kind of processing of automobile connecting rod spherical hinge structure and heat aging technique |
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| CN201810321943.2A CN108468708B (en) | 2018-04-11 | 2018-04-11 | A kind of processing of automobile connecting rod spherical hinge structure and heat aging technique |
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| CN201910826564.3A Division CN110396576B (en) | 2018-04-11 | 2018-04-11 | Machining and thermal aging process for spherical hinge structure of automobile connecting rod |
| CN201910826552.0A Division CN110396577B (en) | 2018-04-11 | 2018-04-11 | Machining and thermal aging process for spherical hinge structure of automobile connecting rod |
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| CN108468708B CN108468708B (en) | 2019-09-24 |
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| CN201910826552.0A Active CN110396577B (en) | 2018-04-11 | 2018-04-11 | Machining and thermal aging process for spherical hinge structure of automobile connecting rod |
| CN201810321943.2A Active CN108468708B (en) | 2018-04-11 | 2018-04-11 | A kind of processing of automobile connecting rod spherical hinge structure and heat aging technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU213044U1 (en) * | 2022-06-28 | 2022-08-22 | Общество С Ограниченной Ответственностью "Научно-Производственное Объединение "Ростар" | HINGE JOINT |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19546084C1 (en) * | 1995-12-11 | 1997-05-07 | Daimler Benz Ag | Wear testing method used for vehicle linkages e.g. spherical linkages |
| CN201218274Y (en) * | 2008-07-01 | 2009-04-08 | 万向集团公司 | Ball pin assembly |
| KR20110113025A (en) * | 2010-04-08 | 2011-10-14 | (주)제이.케이.에스 | Testing apparatus for ball joint |
-
2018
- 2018-04-11 CN CN201910826564.3A patent/CN110396576B/en active Active
- 2018-04-11 CN CN201910826552.0A patent/CN110396577B/en active Active
- 2018-04-11 CN CN201810321943.2A patent/CN108468708B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19546084C1 (en) * | 1995-12-11 | 1997-05-07 | Daimler Benz Ag | Wear testing method used for vehicle linkages e.g. spherical linkages |
| CN201218274Y (en) * | 2008-07-01 | 2009-04-08 | 万向集团公司 | Ball pin assembly |
| KR20110113025A (en) * | 2010-04-08 | 2011-10-14 | (주)제이.케이.에스 | Testing apparatus for ball joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU213044U1 (en) * | 2022-06-28 | 2022-08-22 | Общество С Ограниченной Ответственностью "Научно-Производственное Объединение "Ростар" | HINGE JOINT |
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| Publication number | Publication date |
|---|---|
| CN108468708B (en) | 2019-09-24 |
| CN110396576A (en) | 2019-11-01 |
| CN110396577B (en) | 2021-04-02 |
| CN110396577A (en) | 2019-11-01 |
| CN110396576B (en) | 2021-04-02 |
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Effective date of registration: 20201207 Address after: 221700 Fengxian County Economic Development Zone, Xuzhou City, the north side of the weft Road, two, Jiangsu Patentee after: JIANGSU JUJIE ELECTROMECHANICAL Co.,Ltd. Address before: Dayuan town Fuyang District Yan Kou village in Hangzhou City, Zhejiang province 311414 Patentee before: HANGZHOU FUYANG XINYUAN NEW ENERGY Co.,Ltd. |
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Application publication date: 20180831 Assignee: Fengxian wisdom automation equipment Research Institute Co., Ltd Assignor: JIANGSU JUJIE ELECTROMECHANICAL Co.,Ltd. Contract record no.: X2021980015758 Denomination of invention: Processing and thermal aging process of automobile connecting rod ball joint structure Granted publication date: 20190924 License type: Exclusive License Record date: 20211222 |