CN104875551A - Anti-torsion automobile axle and method for machining same - Google Patents

Anti-torsion automobile axle and method for machining same Download PDF

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Publication number
CN104875551A
CN104875551A CN201510156416.7A CN201510156416A CN104875551A CN 104875551 A CN104875551 A CN 104875551A CN 201510156416 A CN201510156416 A CN 201510156416A CN 104875551 A CN104875551 A CN 104875551A
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China
Prior art keywords
shape body
friction layer
bar
blank
torsion
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CN201510156416.7A
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CN104875551B (en
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刘富豪
于学华
夏基胜
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Guangdong Gaohang Intellectual Property Operation Co ltd
Yangzhou Dongsheng Automobile Parts Ltd By Share Ltd
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Yangcheng Institute of Technology
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Abstract

The invention relates to automobiles, and discloses an anti-torsion automobile axle which comprises a rod-shaped body. The rod-shaped body is of a circular pipe structure, a circular inner rod is rotatably penetratingly arranged in the rod-shaped body, a first friction layer is arranged on the outer peripheral surface of the inner rod, a second friction layer is arranged on the inner surface of the rod-shaped body, the inner rod and the rod-shaped body are butted to each other by the first friction layer and the second friction layer, and a space between the rod-shaped body and the inner rod is filled with friction agents. The anti-torsion automobile axle and a method for machining the anti-torsion automobile axle have the advantages that torsion energy can be absorbed by the anti-torsion automobile axle, and accordingly the problem of poor anti-torsion ability of existing axle bodies can be solved.

Description

Torsion proof automotive axle and job operation thereof
Technical field
The present invention relates to automobile, particularly relate to a kind of torsion proof automotive axle and job operation thereof.
Background technology
Automotive axle (also known as axletree) is connected with vehicle frame (or self-supporting body) by suspension, its two ends installing wheel.It act as and transmit wind tunnel between vehicle frame and vehicle bridge (wheel).Vehicle bridge can be all-in-one-piece, the barbell huge just like, and two ends support vehicle body by suspension, and therefore rigid axle coordinates with dependent suspension usually; Vehicle bridge also can be breakaway-element, is inserted in vehicle body both sides as two umbrellas, then each via suspension system supports vehicle body, so broken bridge of car and independent suspension adapted.Chinese Patent Application No. be 2013105617910, the day for announcing be March 19 in 2014 day, be called the vehicle bridge disclosing a kind of existing structure in the patent documentation of " a kind of electronlmobil driving ".Vehicle bridge comprises shape body.Existing electronlmobil propons has the following disadvantages: the Heavy Weight of shape body, easily produces torsional deflection when being collided; Energy-absorbing effect is poor.
Summary of the invention
The invention provides a kind of torsion proof automotive axle and the job operation thereof that can absorb distortion energy, solve the problem of existing vehicle bridge main body distortion resistance difference.
Above technical matters is solved by following technical proposal: a kind of torsion proof automotive axle, comprise shape body, described shape body is round tube structure, circular interior bar is equipped with rotationally in described shape body, the outer peripheral face of described interior bar is provided with the first friction layer, the inside face of described shape body is provided with the second friction layer, and described interior bar and shape body are filled with rubbing agent between described shape body and interior bar together with being connected to the second friction layer by described first friction layer.When collide or wheel forward to be obstructed and cause shape body produce distortion time, shape body can produce relative to interior bar and rotate, during rotation, external friction layer and the second friction layer produce friction energy-absorbing and eliminate torsional forces, thus play the effect of the distortion resistance improving shape body.Shape body is designed to tubular structure, makes shape body lightweight and collision resistance is good.Fill rubbing agent, when the first friction layer in use procedure and the second friction layer produce wearing and tearing and cause friction energy-absorbing effect to decline, rubbing agent can be filled between the first friction layer and the second friction layer and make the friction energy-absorbing effect that the first friction layer and the second friction layer still keep good, thus solve friction force and decline and the abutting power that can not adjust easily between the first friction layer and the second friction layer and adjust problem (the existing solution wearing and tearing and the method that causes friction force to decline is all realized by change pressure of friction force, existing method can not be applicable to structure of the present invention).
As preferably, described interior bar comprises left bar and right bar, the left end of described left bar is linked together with described shape body by left energy-absorbing spring, the right side of described left bar is provided with some the first commutating tooths along the distribution of left bar circumference, the right-hand member of described right bar is linked together with described shape body by right energy-absorbing spring, the left side of described right bar is provided with some the second commutating tooths along the distribution of right bar circumference, and described first commutating tooth and the second commutating tooth mesh together.When driving interior bar also to produce distortion when shape body distortion, right bar and left bar can be driven circumferentially to separate under the effect of the first commutating tooth and the second commutating tooth, energy-absorbing deflection of spring and energy-absorbing time separately, can be caused.Further by distortion resistance.
The circulation pump that the present invention also comprises calorstat and described rubbing agent is circulated between described calorstat and shape body, described rubbing agent is liquid.In use procedure, by calorstat, rubbing agent insulation is made the temperature of bar and shape body in this remain on setting range, avoids temperature traverse and causes the decline of friction energy-absorbing effect and intensity produce change or produce phenomenon of rupture.
As preferably, one end of described shape body is provided with rubbing agent import, the other end is provided with rubbing agent outlet, and described interior bar is provided with the flow passage being communicated with described rubbing agent import and rubbing agent outlet.Can more effectively internal being incubated everywhere of bar and shape body, avoiding producing local can not the problem of insulation.
A job operation for torsion proof automotive axle, is characterized in that, comprises following processing step:
The first step, intercept out two cylindrical plugs with steel pole, produce circular interior bar blank, produce the second friction layer of circular tube structure and produce the first friction layer of circular tube structure, be less than the shape body blank of the two ends open of the second friction layer overall diameter with the interior diameter that circumferential closure produced by steel plate;
Second step, by sheathed for the first friction layer and be fixed on interior bar blank formed in bar;
3rd step, shape body blank is heated to the material making shape body blank Ac3 temperature more than and be heated to shape body blank microstructure and be converted into austenite and form hot shape body blank;
4th step, shape body blank is heated to the material making shape body blank Ac3 temperature more than and be heated to shape body blank microstructure and be converted into austenite and form hot shape body blank;
5th step, interior bar to be worn in shape body.
The shape body blank first made directly through being less than the second friction layer then makes the interior diameter of hot shape body blank identical with the diameter of the second friction layer by the mode extended out, also the circularity of shape body inner peripheral surface can be made to meet the requirements without the need to being undertaken shaping by mould in shape body blank in the course of processing, thus the comfort feature that adds man-hour can be improved and be fixed together with the second friction layer easily.By expanding in directly, shape body internal diameter is met the requirements, in needing to increase in shape body blank, pattern is to ensure the circularity of shape body inner circumferential, not only makes trouble but also easily causes shape body inner peripheral surface circularity poor.Shape body heating temperatures is extended out more than the Ac3 temperature of corresponding Steel material, not only expansion time laborsaving, shape body surface evenness can be improved, and the dimensional accuracy of shape body, and workpiece material becomes martensite by austenite transforms completely after cooling, its hardness reaches about HRC52, and its tensile strength can be greater than 1500MPa; The thickness that can reduce shape body like this under the prerequisite ensureing shape body intensity is also weight.
As preferably, make shape body blank in the first step and comprise the following steps:
A1, processed the substrate of bar shaped schistose texture by steel plate;
A2, substrate is rolled into the band gap pipe with butt seam;
A3, by the two ends of substrate by arcuate structure complanation structure, make band gap pipe become the band gap flat tube that butt seam place is planar structure;
A4, the two ends weld together of substrate is formed weld seam at butt seam place, make to be with gap flat tube to become the closed flat tube of circumferential closure;
A5, the commissure of closed flat tube is become arcuate structure by planar structure, thus the conglobate shape body blank of shape.The shape body produced is not easy to produce commissure cracking phenomena, if adopt solid drawn pipe, cost is high.
As preferably, between steps A 4 and steps A 5, also comprise the welding slag of step a2, removing commissure.Welding slag can be avoided to be isolated in the circularity affecting shape body between shape body and forming mould, simultaneously welding slag can be avoided to be shed in the process of shaping shape body collision degree that shape body affects die surface between mould.
As preferably, step a2 comprises the following steps:
A2-1, by the welding slag removing of weld seam along the radial both sides of closed flat tube;
A2-2, by the welding slag removing of weld seam along the axial both sides of closed flat tube.The order of this kind of removal welding slag can reduce the impact except welding slag operation butt welded seam place intensity.The method causes the slippage of solder design intensity to be 5/1000ths, if remove welding slag conversely, the slippage of the solder design intensity caused is millesimal 15.
The present invention has following advantage: distortion resistance is good, lightweight, can keep good friction energy-absorbing effect for a long time.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the schematic diagram of shape body substrate.
Fig. 3 is the schematic diagram of band gap pipe.
Fig. 4 is the schematic diagram of band gap flat tube.
Fig. 5 is the schematic diagram of closed flat tube.
Fig. 6 is the schematic diagram of closed flat tube when removing radial welding slag.
Fig. 7 is the schematic diagram of closed flat tube when removing axial welding slag.
Fig. 8 is the schematic diagram of the shape body blank that the present invention produces.
In figure: shape body 1, substrate 1-1, the two ends 1-11 of substrate, butt seam 1-21, band gap pipe 1-2, band gap flat tube 1-3, closed flat tube 1-4, weld seam 1-41, the welding slag 1-411 of radial both sides, the welding slag 1-412 of axial both sides, shape body blank 1-5, left plug 11, rubbing agent import 12, right plug 13, rubbing agent outlet 14, second friction layer 15, interior bar 2, left bar 21, right bar 22, first friction layer 23, flow passage 24, first commutating tooth 25, second commutating tooth 26, calorstat 3, circulation pump 4, left energy-absorbing spring 5, right energy-absorbing spring 6, .
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
See Fig. 1, a kind of torsion proof automotive axle, comprises shape body 1, interior bar 2, calorstat 3 and circulation pump 4.
Shape body 1 is round tube structure.The left end of shape body 1 is sealedly connected with left plug 11.Left plug 11 is provided with rubbing agent import 12.The right-hand member of shape body 1 is sealedly connected with right plug 13.Right plug 13 is provided with rubbing agent outlet 14.The inside face of shape body 1 is provided with the second friction layer 15.Second friction layer 15 is circular tube structure.
Interior bar 2 is provided with flow passage 24.Interior bar 2 comprises left bar 21 and right bar 22.The outer peripheral face of left bar 21 and right bar 22 is all provided with the first friction layer 23.First friction layer 23 is circular tube structure.The left end of left bar 21 is linked together with shape body 1 by left energy-absorbing spring 5.The right side of left bar 21 is provided with some the first commutating tooths 25 along the distribution of left bar circumference.The right-hand member of right bar 22 is linked together with shape body 1 by right energy-absorbing spring 6.The left side of right bar 22 is provided with some the second commutating tooths 26 along the distribution of right bar circumference.First commutating tooth 25 and the second commutating tooth 26 mesh together.Be rotatably connected together with shape body 1 together with left bar 21 and right bar 22 are also all connected to by same second friction layer 15 of the first friction layer 23.
The exit end of calorstat 3 is docking together with friction liquid import 12, and the entrance point of calorstat 3 is docking together with the exit end of circulation pump 4, and the entrance point of circulation pump 4 is docking together with rubbing agent outlet 14.Liquid rubbing agent is filled with in shape body 1.
During use, by circulation pump 4, rubbing agent is circulated between calorstat 3 and shape body 1, calorstat 3 makes the temperature of rubbing agent remain on setting value thus makes shape body 1 and interior pipe 2 remain on the temperature of setting.
When being collided or the stressed reason such as inconsistent in two ends causes shape body 1 to produce distortion, shape body 1 can produce relative rotation relative to interior bar 2, and in motion process, the first friction layer 23 and the second friction layer 15 rub and consume energy and play the effect stoping twisting.If the moment of torsion of shape body 1 and result in interior bar 2 also together produce twisting time, now left bar 21 and right bar 22 can separate vertically under the directional tagging of the first commutating tooth 25 and the second commutating tooth 26, separation process not only can make the first friction layer 23 produce friction with the second friction layer 15 and energy-absorbing, left energy-absorbing spring 5 and right energy-absorbing spring 6 can also be impelled to be out of shape and energy-absorbing, play energy-absorbing and prevent from reversing the effect produced, thus realizing the impact resistant torque capability by shape body.And right energy-absorbing spring 6 and left energy-absorbing spring 5 can also play the effect of repairing shape body 1.
Basic manufacturing process of the present invention is;
The first step, intercept out two cylindrical plugs with steel pole, produce circular interior bar blank, produce the second friction layer of circular tube structure and produce the first friction layer of circular tube structure, be less than the shape body blank of the two ends open of the second friction layer overall diameter with the interior diameter that circumferential closure produced by steel plate;
The detailed process making shape body counterfeit is:
A1, processed the substrate 1-1(of bar shaped schistose texture by steel plate see Fig. 2).
A2, substrate 1 is rolled into there is butt seam 1-21 band gap pipe 1-2(see Fig. 3).A3, by the two ends 1-11 of substrate by arcuate structure complanation structure, making band gap pipe become butt seam 1-21 place is that the band gap flat tube 1-3(of planar structure is see Fig. 4);
A4, the two ends 1-11 weld together of substrate is formed weld seam 1-41 at butt seam place, make band gap flat tube become the closed flat tube 1-4(of circumferential closure see Fig. 5).Steel plate in steps A 1 is dead annealed steel plate, when steps A 4 can be made to weld with the adjacent heat affected zone hardness in weld zone higher than the hardness making shape body, thus comfort feature when can improve subsequent job.The detailed process of welding is: butt seam 1-21 place is heated to applicable plastic deformation and temperature lower than the Ac3 temperature of material, then carry out upset and realize linking together, the two ends of upset and blank are pressed together suddenly and end are merged and ejecting outside the plane of mother metal to the part material material of welding zone, then weld seam 1-41 is incubated, to reduce the rate of cooling of weld seam 1-41.This welding manner can be avoided weld seam 1-41 much higher hard and affect follow-up fourth contact.
The welding slag of a2, removing commissure.Specifically comprise
A2-1, weld seam 1-41 is removed (see Fig. 6) along the welding slag 1-411 of the radial both sides of closed flat tube 1-4.
A2-2, weld seam 1-41 is removed (see Fig. 7) along the welding slag 1-412 of the axial both sides of closed flat tube 1-4.
A5, the weld seam 1-41 place of closed flat tube is become arcuate structure by planar structure, thus shape conglobate shape body blank 1-5(is see Fig. 8).Weld seam slag be weld seam temperature or higher than room temperature namely or heat time remove, be convenient to removing like this and planeness is good
See Fig. 1, second step, by sheathed for the first friction layer 23 and be fixed on interior bar 2;
See Fig. 8, the 3rd step, shape body blank 1-5 is heated to the material making shape body blank Ac3 temperature more than and be heated to shape body blank microstructure and be converted into austenite and form hot shape body blank;
4th step, hot shape body blank is radially expanded to interior diameter with the second friction layer 15(see Fig. 1) overall diameter equal, second friction layer is worn in hot shape body blank, then cools and make shape body blank form shape body 1(see Fig. 1) and be fixed together with the second friction layer;
See Fig. 1, the 5th step, interior bar 2 to be worn in shape body 1.Together with interior bar 2 and shape body 1 to be connected to the second friction layer 15 by the first friction layer 23.
6th step, left energy-absorbing spring 5 and right energy-absorbing spring 6 are assembled between interior bar 2 and shape body 1, left plug 11 and right plug 13 are welded and is enclosed in the two ends of shape body 1.
7th step, links together calorstat 3 and circulation pump 4 with shape body 1, and rubbing agent adds in shape body 1 by the liquid filling hole improved in calorstat 3.

Claims (8)

1. a torsion proof automotive axle, comprise shape body, it is characterized in that, described shape body is round tube structure, be equipped with circular interior bar in described shape body rotationally, the outer peripheral face of described interior bar is provided with the first friction layer, and the inside face of described shape body is provided with the second friction layer, described interior bar and shape body are filled with rubbing agent between described shape body and interior bar together with being connected to the second friction layer by described first friction layer.
2. torsion proof automotive axle according to claim 1, it is characterized in that, described interior bar comprises left bar and right bar, the left end of described left bar is linked together with described shape body by left energy-absorbing spring, the right side of described left bar is provided with some the first commutating tooths along the distribution of left bar circumference, the right-hand member of described right bar is linked together with described shape body by right energy-absorbing spring, the left side of described right bar is provided with some the second commutating tooths along the distribution of right bar circumference, and described first commutating tooth and the second commutating tooth mesh together.
3. torsion proof automotive axle according to claim 1 and 2, is characterized in that, the circulation pump also comprising calorstat and described rubbing agent is circulated between described calorstat and shape body, and described rubbing agent is liquid.
4. torsion proof automotive axle according to claim 3, is characterized in that, one end of described shape body is provided with rubbing agent import, the other end is provided with rubbing agent outlet, and described interior bar is provided with the flow passage being communicated with described rubbing agent import and rubbing agent outlet.
5. be applicable to a job operation for torsion proof automotive axle according to claim 1, it is characterized in that, comprise following processing step:
The first step, intercept out two cylindrical plugs with steel pole, produce circular interior bar, produce the second friction layer of circular tube structure and produce the first friction layer of circular tube structure, be less than the shape body blank of the two ends open of the second friction layer overall diameter with the interior diameter that circumferential closure produced by steel plate;
Second step, by sheathed for the first friction layer and be fixed on interior bar blank formed in bar;
3rd step, shape body blank is heated to the material making shape body blank Ac3 temperature more than and be heated to shape body blank microstructure and be converted into austenite and form hot shape body blank;
4th step, hot shape body blank to be radially expanded to interior diameter equal with the overall diameter of the second friction layer, second friction layer is worn in hot shape body blank, then cools and make shape body blank form shape body and be fixed together with the second friction layer;
5th step, interior bar to be worn in shape body.
6. the job operation of torsion proof automotive axle according to claim 5, is characterized in that, makes shape body blank and comprise the following steps in the first step:
A1, processed the substrate of bar shaped schistose texture by steel plate;
A2, substrate is rolled into the band gap pipe with butt seam;
A3, by the two ends of substrate by arcuate structure complanation structure, make band gap pipe become the band gap flat tube that butt seam place is planar structure;
A4, the two ends weld together of substrate is formed weld seam at butt seam place, make to be with gap flat tube to become the closed flat tube of circumferential closure;
A5, the commissure of closed flat tube is become arcuate structure by planar structure, thus the conglobate shape body blank of shape.
7. the job operation of torsion proof automotive axle according to claim 6, is characterized in that, also comprises the welding slag of step a2, removing commissure between steps A 4 and steps A 5.
8. the job operation of torsion proof automotive axle according to claim 7, it is characterized in that, step a2 comprises the following steps:
A2-1, by the welding slag removing of weld seam along the radial both sides of closed flat tube;
A2-2, by the welding slag removing of weld seam along the axial both sides of closed flat tube.
CN201510156416.7A 2015-04-03 2015-04-03 The automotive axle and its processing method of anti-torsion Active CN104875551B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954026A (en) * 1974-12-06 1976-05-04 Clark Equipment Company Wheel drive mechanism
DE2526573A1 (en) * 1975-06-13 1976-12-16 Bergische Achsen Kotz Soehne DRIVE AXLE FOR CONSTRUCTION VEHICLES
CN101503045A (en) * 2008-02-06 2009-08-12 通用汽车环球科技运作公司 Damped axle shaft
CN101618734A (en) * 2009-06-23 2010-01-06 广东富华重工制造有限公司 Steering axle of automobile
CN201405677Y (en) * 2009-05-31 2010-02-17 晋江市连盛液压机械有限公司 Automobile overhead front driving axle
CN103640434A (en) * 2013-11-13 2014-03-19 安徽费洛卡重工传动有限公司 Electric automobile rear axle drive
CN204031848U (en) * 2014-08-28 2014-12-24 重庆航天巴山摩托车制造有限公司 Grain header transmission case steering mechanism
CN204526648U (en) * 2015-04-03 2015-08-05 盐城工学院 A kind of torsion proof automotive axle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954026A (en) * 1974-12-06 1976-05-04 Clark Equipment Company Wheel drive mechanism
DE2526573A1 (en) * 1975-06-13 1976-12-16 Bergische Achsen Kotz Soehne DRIVE AXLE FOR CONSTRUCTION VEHICLES
CN101503045A (en) * 2008-02-06 2009-08-12 通用汽车环球科技运作公司 Damped axle shaft
CN201405677Y (en) * 2009-05-31 2010-02-17 晋江市连盛液压机械有限公司 Automobile overhead front driving axle
CN101618734A (en) * 2009-06-23 2010-01-06 广东富华重工制造有限公司 Steering axle of automobile
CN103640434A (en) * 2013-11-13 2014-03-19 安徽费洛卡重工传动有限公司 Electric automobile rear axle drive
CN204031848U (en) * 2014-08-28 2014-12-24 重庆航天巴山摩托车制造有限公司 Grain header transmission case steering mechanism
CN204526648U (en) * 2015-04-03 2015-08-05 盐城工学院 A kind of torsion proof automotive axle

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