CN108930703A - A kind of studs type suspension installation structure - Google Patents

A kind of studs type suspension installation structure Download PDF

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Publication number
CN108930703A
CN108930703A CN201811160446.5A CN201811160446A CN108930703A CN 108930703 A CN108930703 A CN 108930703A CN 201811160446 A CN201811160446 A CN 201811160446A CN 108930703 A CN108930703 A CN 108930703A
Authority
CN
China
Prior art keywords
studs
convex ring
limiting convex
counterbore
mounting bracket
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.)
Withdrawn
Application number
CN201811160446.5A
Other languages
Chinese (zh)
Inventor
熊晨曦
柏世川
柳欢欢
黄永旺
许春铁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Changan Automobile Co Ltd
Original Assignee
Chongqing Changan Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Changan Automobile Co Ltd filed Critical Chongqing Changan Automobile Co Ltd
Priority to CN201811160446.5A priority Critical patent/CN108930703A/en
Publication of CN108930703A publication Critical patent/CN108930703A/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041Specially-shaped shafts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12Arrangement of engine supports
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

Abstract

The present invention relates to automobile engines, more particularly to a kind of studs type suspension installation structure, the studs of mounting bracket, connection erection support and mounting bracket including erection support, for installing mounting structure, counterbore is offered on the upper surface of the erection support, the bottom surface of the counterbore offers threaded hole, and the middle part of the studs is equipped with position limiting convex ring;The height of the position limiting convex ring is less than the depth of the counterbore, and the bottom surface of the position limiting convex ring and the bottom surface of counterbore are involute surface;The lower end of the studs and threaded hole are cooperatively connected, and the bottom surface corresponding matching of the bottom surface of position limiting convex ring and counterbore;The mounting bracket is set on studs, the upper surface of the mounting bracket and erection support tight against;The upper end of the studs is connected with the fastening nut for compressing mounting bracket.The present invention can guarantee the consistency of installation, while can be improved the mechanical property of mounting structure, prolong the service life.

Description

A kind of studs type suspension installation structure
Technical field
The present invention relates to automobile engines, and in particular to a kind of studs type suspension installation structure.
Background technique
The mounting structure of automobile engine generally uses studs to be fixedly mounted at present, i.e. one end peace of studs On erection support, the other end and mounting bracket are cooperatively connected, and are fixed mounting bracket with nut.
A kind of right mounting assembly suitable for automobile engine of CN205059199U, as shown in figure 8, being hanged by right suspension and the right side Set bracket two parts composition.Right suspension is connected by rubber assembly, the first vehicle body connection frame, the second vehicle body connection frame with third vehicle body Four part of frame composition.Rubber assembly is mainly by shell 11, fuse 12, damping rubber block 13, the stud 15 with nut 14, rubber The composition such as glue buffer stopper 16.Damping rubber block 13 is wrapped by vulcanization in the lower part of fuse 12, and damping rubber block 13 is fixedly mounted In shell 11, the top of fuse 12 is reached outside shell 11, and the threaded hole protruded into for 15 lower end of stud is provided in fuse 12, The lower end of stud 15 is protruded into fuse 12 and is locked together by screw thread with fuse 12.Right mounting bracket is sleeved on double end On bolt 15, and locked by the nut 14.
The advantages of above-mentioned mounting means be installation easily, but due to there is no position limiting structure, double end on stud 15 The screw-in depth of stud is not definite value, is unfavorable for the consistency of product.Meanwhile in use for some time, portioned product is double Hook bolt will appear crackle, and life of product is shorter.
Summary of the invention
The object of the present invention is to provide a kind of studs type suspension installation structures, to guarantee the consistency of installation, simultaneously The mechanical property that can be improved mounting structure, prolongs the service life.
To realize the above-mentioned technical purpose, the scheme that the present invention uses is as follows:
A kind of studs type suspension installation structure, mounting bracket, company including erection support, for installing mounting structure Connect the studs of erection support and mounting bracket, it is characterised in that: counterbore, institute are offered on the upper surface of the erection support The bottom surface for stating counterbore offers threaded hole, and the middle part of the studs is equipped with position limiting convex ring;The height of the position limiting convex ring is small In the depth of the counterbore, the bottom surface of the position limiting convex ring and the bottom surface of counterbore are involute surface;The studs Lower end and threaded hole are cooperatively connected, and the bottom surface corresponding matching of the bottom surface of position limiting convex ring and counterbore;The mounting bracket is arranged On studs, the upper surface of the mounting bracket and erection support tight against;The upper end of the studs is connected with For compressing the fastening nut of mounting bracket.
The upper surface of the position limiting convex ring is involute surface and symmetrical with its bottom surface.
The height of the position limiting convex ring is 1/10th of studs major diameter of thread.
The beneficial effects of the present invention are: (1) since studs be equipped with position limiting convex ring, it ensure that the consistent of installation Property;(2) depth that the height of position limiting convex ring is less than counterbore can prevent from interfering;(3) since the supporting surface of studs is gradually to open Line curved surface, the characteristics of according to involute, the power being subject to can be vertical with contact surface, and in automobile vibration, studs is by towards each The power of the swing in a direction, can be uniformly applied on supporting surface, avoids local pressure and stress is concentrated, be able to extend double The service life of header stud;It (4) symmetrically and is involute surface with lower surface due to the upper surface of position limiting convex ring, so that its Intensity is reliable, and shape is smooth, and stress is avoided to concentrate;(5) due to the height of position limiting convex ring be studs major diameter of thread very One of, this ratio is suitable for the studs of various outer diameter;(6) present invention passes through studs and fastening nut for mounting bracket It is fixed on erection support, mounts and dismounts all very convenient.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is the partial schematic diagram of studs Yu erection support fitting part;
Fig. 3 is the structural schematic diagram of studs;
Fig. 4 is to calculate resulting involute curve;
Fig. 5 is the involute curve after coordinate system transformation;
Fig. 6 is that the cross section of position limiting convex ring generates schematic diagram;
Fig. 7 is the comparison of test results figure of the position limiting convex ring and common step using involute surface;
Fig. 8 is the partial structural diagram of prior art CN205059199U.
In figure: 11- shell, 12- fuse, 13- damping rubber block, 14- nut, 15- stud, 16- damping rubber block, 2- erection support, 3- studs, 4- fastening nut, 5- mounting bracket, 6- counterbore, 7- position limiting convex ring.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair Bright technical solution further illustrates.
A kind of studs type suspension installation structure, mounting bracket 5 including erection support 2, for installing mounting structure, Connect the studs 3 of erection support 2 and mounting bracket 5, it is characterised in that:
Counterbore 6 is offered on the upper surface of the erection support 2, the bottom surface of the counterbore 6 offers threaded hole, described double The middle part of header stud 3 is equipped with position limiting convex ring 7;The height of the position limiting convex ring 7 is less than the depth of the counterbore 6, the limit convex The bottom surface of ring 7 and the bottom surface of counterbore 6 are involute surface;The lower end of the studs 3 and threaded hole are cooperatively connected, and The bottom surface of position limiting convex ring 7 and the bottom surface corresponding matching of counterbore 6;The mounting bracket 5 is set on studs 3, the suspension The upper surface of bracket 5 and erection support 2 tight against;The upper end of the studs 3 is connected with for compressing mounting bracket 5 Fastening nut 4.
The upper surface of the position limiting convex ring 7 is involute surface and symmetrical with its bottom surface.
The height of the position limiting convex ring 7 is 1/10th of 3 major diameter of thread of studs.
Mounting bracket 5 is fixed on erection support 2 by the present invention by studs 3 and fastening nut 4, is mounted and dismounted All easily.Simultaneously as studs 3 is equipped with position limiting convex ring 7, studs 3 screws in erection support 2 until limit when installation The bottom surface of position bulge loop and counterbore 7 offsets, and ensure that the consistency of installation.
The depth that the height of position limiting convex ring 7 is less than counterbore 6 can prevent from interfering: sink if the height of position limiting convex ring 7 is greater than The depth in hole 6, the upper surface of position limiting convex ring 7 is higher than the upper surface of erection support 2, and after installation, what fastening nut 4 clamped is suspension Bracket 5 and studs 3, rather than mounting bracket 5 and erection support 2, and the lower half portion screw thread of studs 3 is easy pine It is dynamic;And the lower surface of mounting bracket 5 can be crushed by the upper surface of position limiting convex ring 7 during installation.
In addition, finding that the cracked reason of stud is in the prior art through test and analysis: being run in automobile It is constantly in vibrational state in the process, studs 3 will receive the power of the swing of one way or another, and it generates stress and concentrates, so that Studs 3 is gradually destroyed or even cracked.Invention increases position limiting convex rings 7, if the bottom surface of position limiting convex ring 7 is The phenomenon that plane, stress is concentrated, can become apparent from.The contact surface of position limiting convex ring 7 and counterbore 6 is involute surface, so that studs 3 when having swing trend, and the characteristics of according to involute, the power being subject to can be vertical with contact surface, i.e., by all directions load when, limit The variation of Impact direction is most smooth on the bulge loop 7 of position, and compared to other shapes, the stress of involute surface is most uniform, avoids and answers Power is concentrated, and the service life of studs 3 is able to extend.
In order to verify position limiting convex ring 7 of the invention using the improvement after involute surface to the mechanical property of mounting structure, It is compared when simulating working condition of the invention, and using common step structure with position limiting convex ring 7.In test, mould Quasi- screw rod clamping force 35000N, that is, down load 35000N is applied to studs 3, analog result is as shown in Figure 7: the present invention Position limiting convex ring 7 suffered by maximum stress be 855Mpa, and use common step structure when, the maximum that position limiting convex ring is subject to is answered Power is 1102Mpa.The mechanical property of mounting structure has been obviously improved using involute surface.In addition, can also be seen that in figure Stress publication situation on studs 3 and position limiting convex ring 7, which has, to be obviously improved.
The upper surface and lower surface of position limiting convex ring 7 are symmetrical and are involute surface, so that its intensity is reliable, shape is flat It is sliding, avoid stress from concentrating.
The height of position limiting convex ring 7 ensure that 3 structure of studs is well-balanced for 1/10th of 3 major diameter of thread of studs, This ratio is suitable for the studs of various outer diameter, is that position limiting convex ring 7 can reliably play a supporting role.
The involute is determined according to following algorithm:
Involute equation:
WhereinFor the angle of spread, the angle of spreadTake 0~90 °;
R is base radius, base radiusWhereinFor major diameter of thread.
Involute is calculated according to above-mentioned formula as shown in figure 4, being again as shown in Figure 5 by involute progress coordinate system transformation Direction, finally by involute carry out up and down mirror projection, obtain the cross-sectional profiles of position limiting convex ring 7, as shown in fig. 6, limit The height of bulge loop 7 is 2H.
Wherein A point is90 ° are taken, B point isTake 0 °.H=XA-XB, willIt substitutes into, calculates with rI.e. according to The height for the position limiting convex ring 7 that this algorithm determines just is equal to major diameter of thread1/10th.

Claims (3)

1. a kind of studs type suspension installation structure, including erection support (2), the mounting bracket for installing mounting structure (5), connect erection support (2) and mounting bracket (5) studs (3), it is characterised in that: the erection support (2) it is upper It is offered on surface counterbore (6), the bottom surface of the counterbore (6) offers threaded hole, and the middle part of the studs (3) is equipped with limit Position bulge loop (7);The height of the position limiting convex ring (7) be less than the counterbore (6) depth, the bottom surface of the position limiting convex ring (7) and The bottom surface of counterbore (6) is involute surface;The lower end of the studs (3) and threaded hole are cooperatively connected, and limit convex The bottom surface of ring (7) and the bottom surface corresponding matching of counterbore (6);The mounting bracket (5) is set on studs (3), described outstanding Set the upper surfaces of bracket (5) and erection support (2) tight against;The upper end of the studs (3) is connected with outstanding for compressing Set the fastening nut (4) of bracket (5).
2. studs type suspension installation structure according to claim 1, it is characterised in that: the position limiting convex ring (7) Upper surface is involute surface and symmetrical with its bottom surface.
3. studs type suspension installation structure according to claim 1 or 2, it is characterised in that: the position limiting convex ring (7) Height be studs (3) major diameter of thread 1/10th.
CN201811160446.5A 2018-09-30 2018-09-30 A kind of studs type suspension installation structure Withdrawn CN108930703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811160446.5A CN108930703A (en) 2018-09-30 2018-09-30 A kind of studs type suspension installation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811160446.5A CN108930703A (en) 2018-09-30 2018-09-30 A kind of studs type suspension installation structure

Publications (1)

Publication Number Publication Date
CN108930703A true CN108930703A (en) 2018-12-04

Family

ID=64444195

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811160446.5A Withdrawn CN108930703A (en) 2018-09-30 2018-09-30 A kind of studs type suspension installation structure

Country Status (1)

Country Link
CN (1) CN108930703A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080247841A1 (en) * 2006-11-03 2008-10-09 Mercer Larry D Low swage load fastening system and method
CN201209613Y (en) * 2008-06-14 2009-03-18 张平 Double-ended linking stud
US7588235B2 (en) * 2005-10-05 2009-09-15 Tokai Rubber Industries, Ltd. Fluid filled type vibration-damping device
CN205059199U (en) * 2015-09-22 2016-03-02 重庆凯特动力科技有限公司 Right side suspension assembly suitable for automobile engine
CN205780179U (en) * 2016-05-30 2016-12-07 成都市欣欣高强度紧固件制造有限公司 Easy-to-mount double end stud connecting piece

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7588235B2 (en) * 2005-10-05 2009-09-15 Tokai Rubber Industries, Ltd. Fluid filled type vibration-damping device
US20080247841A1 (en) * 2006-11-03 2008-10-09 Mercer Larry D Low swage load fastening system and method
CN201209613Y (en) * 2008-06-14 2009-03-18 张平 Double-ended linking stud
CN205059199U (en) * 2015-09-22 2016-03-02 重庆凯特动力科技有限公司 Right side suspension assembly suitable for automobile engine
CN205780179U (en) * 2016-05-30 2016-12-07 成都市欣欣高强度紧固件制造有限公司 Easy-to-mount double end stud connecting piece

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Application publication date: 20181204