CN209012250U - Control arm ball pin assembly and vehicle configured with the control arm ball pin assembly - Google Patents

Control arm ball pin assembly and vehicle configured with the control arm ball pin assembly Download PDF

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Publication number
CN209012250U
CN209012250U CN201821272487.9U CN201821272487U CN209012250U CN 209012250 U CN209012250 U CN 209012250U CN 201821272487 U CN201821272487 U CN 201821272487U CN 209012250 U CN209012250 U CN 209012250U
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China
Prior art keywords
ball pin
control arm
pin assembly
rod segment
bulb
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Active
Application number
CN201821272487.9U
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Chinese (zh)
Inventor
宁强
吴震强
罗健
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NIO Holding Co Ltd
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NIO Nextev Ltd
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Priority to CN201821272487.9U priority Critical patent/CN209012250U/en
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Abstract

The utility model belongs to Automotive Steering Technology field, it is intended to solve the problems, such as that existing knuckle steel bushing installation cost is high, maintenance cost is high.For this purpose, the utility model provides a kind of control arm ball pin assembly and the vehicle configured with the control arm ball pin assembly, which includes: control arm, which is provided with ball pin seat;Ball bowl, is mounted in ball pin seat;Ball pin comprising bulb and the ball pin bar connecting with bulb, bulb are movably disposed in ball bowl, and ball pin bar includes straight bar section and cone rod segment;Dust cover is fixed on control arm by clip;Control arm ball pin assembly further includes the taper sheath for being socketed in cone rod segment periphery, and the limit component being folded between taper sheath and ball pin bar, and limit component is arranged to that taper sheath is stopped to fall off from cone rod segment.The installation cost and replacement cost of steel bushing can be greatly reduced in the control arm ball pin assembly of the utility model, can be shortened the production cycle, improve production efficiency, promote user experience.

Description

Control arm ball pin assembly and vehicle configured with the control arm ball pin assembly
Technical field
The utility model relates to Automotive Steering Technology fields, and in particular to a kind of control arm ball pin assembly and be configured with the control The vehicle of arm ball pin assembly processed.
Background technique
Currently, most of electric vehicle all uses aluminum knuckle and aluminum control arm to be cooperatively connected to mitigate complete vehicle weight. Since the ball pin of connection control arm and knuckle is still steel material, steel ball pin damages aluminum knuckle by pressure in order to prevent, leads to Often a steel bushing can be pressed into aluminum knuckle and the matching part of steel ball pin.
Fig. 1 is knuckle in the prior art and control arm assembly diagram, and the installation site of steel bushing is shown.Such as Shown in Fig. 1, aluminum knuckle 1 is connect by ball pin 4 with aluminum control arm 3, is pressed in the matching part of ball pin 4 and knuckle 1 There is steel bushing 2.The press fitting of steel bushing 2 is usually completed in the suppliers of aluminum knuckle 1, is supplied with aluminum knuckle 1 as assembly. The press fitting of steel bushing 2 needs to be equipped with dedicated automatically controlled servo press, and needs to customize dedicated frock clamp, presses by steel bushing 2 It needs to adjust pressing-in force, indentation rate before entering aluminum knuckle 1, and needs to monitor the technological parameters such as force-displacement curve, this work The time that skill verification process usually requires to expend 2-3 weeks can be only achieved optimum Working to debug.In addition, steel bushing in order to prevent 2 get rusty, it will usually carry out plating zinc-nickel processing to steel bushing 2.During press fitting, due to rubbing between steel bushing 2 and knuckle ontology It wipes, coating has the possibility peeled off.After vehicle driving certain mileage, muddy water, impurity in external environment can cause coating It further corrodes, steel bushing is made gradually to get rusty.The steel bushing to get rusty with aluminum knuckle when contacting, according to the original of electrochemical corrosion Reason, aluminium are corroded because of lower corruption current potential.The steel bushing hole of aluminum knuckle pass through certain time corrosion, aperture and Circularity can change, and steel bushing has the risk loosened, increase the security risk of vehicle.User has found that steel bushing is corroded and required When replacement, entire knuckle assembly can only be replaced, supplies expenses and working hour expense are high.
Correspondingly, this field needs a kind of new control arm ball pin assembly to solve the above problems.
Utility model content
In order to solve the above problem in the prior art, in order to solve, existing knuckle steel bushing installation cost is high, repairs Problem at high cost, the first aspect of the utility model provide a kind of control arm ball pin assembly, the control arm ball pin assembly packet Include: control arm which is provided with ball pin seat;Ball bowl is mounted in the ball pin seat;Ball pin comprising bulb and with the ball The ball pin bar of head connection, the bulb is movably disposed in the ball bowl, and the ball pin bar includes straight bar section and is located at institute State the cone rod segment between straight bar section and the bulb;Dust cover is fixed on the control arm by clip;The control arm Ball pin assembly further includes the taper sheath for being socketed in the cone rod segment periphery, and be folded in the taper sheath and the ball pin bar it Between limit component, the limit component is arranged to that the taper sheath is stopped to fall off from the cone rod segment.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the taper sheath is matched with the cone rod segment using interference Close connection.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the cone rod segment and/or the cone rod segment with it is described The junction of straight bar section is radially retracted to form the limiting slot for accommodating the limit component.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the limit component is to be socketed in the limiting slot Circlip.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the limiting slot includes being formed in the straight bar section top The confined planes in portion, correspondingly the circlip includes the bearing surface that can be abutted with the confined planes.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the bearing surface in the circlip deviate from institute State the end face of bulb;Or the inner wall of the circlip is recessed inwardly to form hang down approximate with the axis of the circlip Straight step surface, the step surface constitute the bearing surface.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the bottom of the top surface of the taper sheath and the dust cover Face abuts.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the material of the control arm is aluminium alloy, the cone Shape set is steel bushing.
In the optimal technical scheme of above-mentioned control arm ball pin assembly, the control arm ball pin assembly further includes being arranged in institute The end cap of ball bowl one end is stated, the end cap is embedded in the ball pin seat to stop the ball bowl to be deviate from out of described ball pin seat.
It will be appreciated to those of skill in the art that in the optimal technical scheme of the utility model, by by steel bushing collection At the equipment cost and process costs in control arm ball pin, eliminating the press fitting steel bushing needed to configure in original technique, substantially The installation cost for reducing steel bushing eliminates complicated press fitting debugging process, shortens the production cycle, improve production efficiency; In addition, the steel bushing and control arm in the utility model are set as Demountable, when user's discovery steel bushing gets rusty and there is electricity When the risk of chemical attack, it is only necessary to the steel bushing to get rusty is removed from ball pin bar in the shop 4S, is individually replaced new steel bushing, Without the aluminum knuckle and control arm more renewed simultaneously, to significantly reduce maintenance cost.
The second aspect of the utility model additionally provides a kind of vehicle, which includes institute in any of the above-described technical solution The control arm ball pin assembly stated.
It is understood that above-mentioned vehicle has all technical effects of aforementioned control arm ball pin assembly, it is no longer superfluous herein It states.
Detailed description of the invention
Preferred embodiments of the present invention are described with reference to the accompanying drawings.In attached drawing:
Fig. 1 is knuckle in the prior art and control arm assembly diagram, and the installation site of steel bushing is shown;
The control arm and the structural schematic diagram after ball pin assembly that Fig. 2 is the utility model, are shown the knot of ball pin bar Structure;
Fig. 3 is the partial enlarged view in Fig. 2 at A;
Fig. 4 is the half section structure diagram of the circlip of the utility model;
Fig. 5 is the top view of the control arm ball pin assembly of the utility model;
Fig. 6 is the B-B direction diagrammatic cross-section in Fig. 5;
Fig. 7 is the perspective view of the explosion of Fig. 5;
Reference signs list:
1, knuckle;2, steel bushing;3, control arm;31, ball pin seat;4, ball pin bar;41, bulb;42, rod segment is bored;43, straight-bar Section;44, limiting slot;441, confined planes;5, circlip;51, step surface;52, inner wall;53, side wall surface;54, end face;6, prevent Dust hood;61, seal groove;7, clip;8, ball bowl;9, end cap.
Specific embodiment
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model Range.
It should be noted that although the present embodiment is described with steel bushing and aluminum knuckle and aluminum control arm, But it is only intended to illustrate the principles of the present invention, it is not intended that in the limitation protection scope of the utility model, without departing from this The change done under the premise of utility model is each fallen among the protection scope of the utility model.
The problem that the existing knuckle steel bushing installation cost pointed out based on background technique is high, maintenance cost is high, this is practical new Type provides a kind of control arm ball pin assembly, it is intended to reduce the installation cost and maintenance cost of steel bushing, be user and manufacturer It cuts down expenses.
Structural schematic diagram after being assembled referring to the control arm and ball pin that Fig. 2-Fig. 7, Fig. 2 are the utility model, there is shown with The structure of ball pin bar;Fig. 3 is the partial enlarged view in Fig. 2 at A;Fig. 4 is the half-sectional structure of the circlip of the utility model Schematic diagram;Fig. 5 is the top view of the control arm ball pin assembly of the utility model;Fig. 6 is the B-B direction diagrammatic cross-section in Fig. 5;Figure 7 be the perspective view of the explosion of Fig. 5.
Referring to Fig. 5-Fig. 7, the control arm ball pin assembly in the present embodiment includes:
Control arm 3 which is provided with ball pin seat 31.Guiding and force transfer element of the control arm 3 as automobile suspension system can incite somebody to action The various power acted on wheel pass to vehicle body, while guaranteeing that wheel is moved by certain track.Control arm 3 should have enough rigid Degree, intensity and service life, the control arm 3 in the present embodiment is aluminum control arm.The end of control arm 3 is arranged in ball pin seat 31 Portion is formed with to perforation lower openings in 3 end of control arm than the through-hole that upper opening is slightly shunk, and structure is referring to Fig. 5 institute Show.
Ball bowl 8 is mounted in ball pin seat 31 referring to Fig. 6.Ball bowl 8 enables ball pin to be freely rotated in ball pin seat 31. The shape of the inner wall of ball bowl 8 is adapted with the peripheral shape of the bulb 41 of ball pin, so that ball pin will not when rotating in ball bowl 8 It is shaken because of gap.
Ball pin, referring to Fig. 3 and Fig. 6 comprising bulb 41 and the ball pin bar 4 connecting with bulb 41, bulb 41 is movably It is arranged in ball bowl 8, ball pin bar 4 includes straight bar section 43 and cone rod segment 42, bores rod segment 42 between straight bar section 43 and bulb 41. Along bulb 41 to the direction of straight bar section 43, the cross-sectional diameter for boring rod segment 42 is gradually reduced.The top of bulb 41 and cone rod segment 42 Undergauge connection, and joint face is smoothly transitted by the lower end of bulb 41 to the upper end of cone rod segment 42.
Dust cover 6, structure be up and down, periphery similar to bowl-shape structure, for preventing dust from entering bulb 41 Between ball bowl 8, the relative motion between bulb 41 and control arm 3 is hindered.The upper, open end of dust cover 6 is solid by clip 7 Determine onto control arm 3.Specifically, referring to figure 6 and figure 7, in 31 part of ball pin seat of control arm 3, it is provided with the recessed of circumferential opening The upper, open end of dust cover 6 is fixed on control arm 3 by clip 7, gos deep into clip 7 just into the groove, prevent by slot Only clip 7 shifts and influences its fastening performance.Dust cover 6 generallys use the production of rubber flexible material.It will be dust-proof by clip 7 The edge of cover 6 is crimped in the groove, can guarantee the anti-dust performance of dust cover 6.
Control arm ball pin assembly further includes the taper sheath for being socketed in cone 42 periphery of rod segment, and is folded in taper sheath and ball pin Limit component between bar 4.
Taper sheath is for preventing ball pin from causing to damage to aluminum knuckle 1, for aluminum knuckle 1, taper sheath, that is, existing Steel bushing 2 in technology.
Limit component is mobile relative to ball pin bar 4 for limiting steel bushing 2.After steel bushing 2 is assemblied on ball pin bar 4, steel bushing 2 The periphery of inner circumferential and the cone rod segment 42 of ball pin bar 4 fit closely, limit component is arranged to stop steel bushing 2 from cone rod segment 42 On fall off.
In this way, eliminating the press fitting steel bushing needed to configure in original technique by the way that steel bushing to be integrated in control arm ball pin Equipment cost and process costs, significantly reduce the installation cost of steel bushing, eliminate complicated press fitting debugging process, shorten Production cycle improves production efficiency;In addition, the steel bushing and control arm in the utility model are set as Demountable, when User has found that steel bushing gets rusty and there are when the risk of electrochemical corrosion, it is only necessary to take the steel bushing to get rusty from ball pin bar in the shop 4S Under, it is individually replaced new steel bushing, without the aluminum knuckle and control arm more renewed simultaneously, to significantly reduce dimension Accomplish this.
Specifically, the setting of taper sheath is to be used to cooperate with ball pin to reduce ball pin and be arranged on knuckle 1 Damage between through-hole, therefore, the material of taper sheath should be higher than the intensity of the material of knuckle 1.When knuckle 1 and control arm When 3 material changes, the material of taper sheath should be correspondingly adjusted.
More specifically, steel bushing 2 and cone rod segment 42 are connected using interference fit, to prevent steel bushing 2 from taking off from cone rod segment 42. Since ball pin volume itself is much smaller with respect to for knuckle 1, the interference fit of steel bushing 2 and cone rod segment 42 is not necessarily to large-sized folder The press mounting tool for holding tool and profession, realizes that the operation of interference fit is simpler.
Further, cone rod segment 42 can be by radial retraction to form the limiting slot 44 for accommodating limit component.Specifically Ground can open up a groove (not shown) close to the position of cone 42 taper end of rod segment, as the limiting slot for accommodating limit component 44。
Alternatively, it can use cone rod segment 42 and bore rod segment 42 with original connect for transition in the junction of straight bar section 43 Linkage section with straight bar section 43 is as the limiting slot 44 for accommodating limit component.Or further add on the basis of original changeover portion Work is to deepen its undergauge degree, to expose the outer ring of the top surface of straight bar section 43, using the slot as the limit for accommodating limit component Slot 44, referring to shown in Fig. 3.
Alternatively, above two limiting slot can be existed simultaneously to reinforce limit function.
Specifically, limit component is mainly used for increasing taper sheath and bores the friction between rod segment 42, prevents taper sheath from gliding. Such as muti-piece rubber block can be filled in limiting slot 44 after steel bushing 2 is installed on ball pin bar 4, steel bushing 2 squeezes rubber Block is contained in limiting slot 44 after deforming rubber block, reverse extrusion is formed to steel bushing 2 using its restoring force, to realize resistance Keep off the effect that steel bushing 2 glides.
Preferably, limit component is the circlip 5 being socketed in limiting slot 44.The structure of circlip 5 can be circle Ring-type, edge is equipped with chamfering, to enhance the lear energy of circlip 5.Circlip 5 can be using rubber, silica gel etc. Have the material of elastic deformation ability, the installation of circlip 5 can be facilitated in this way, and can preferably increase taper sheath and ball pin bar Between friction, play better blocking effect.
Further, limiting slot 44 includes the confined planes 441 for being formed in 43 top of straight bar section, correspondingly circlip 5 Including the bearing surface that can be abutted with confined planes 441.
Prevent circlip 5 from moving in use to enhance the limit function of circlip 5 referring to Fig. 3 and Fig. 4 Position presets a confined planes 441 in the limiting slot 44 of installation circlip 5, one is preset on circlip 5 The bearing surface that can be abutted with the confined planes 441 enables limiting slot 44 to the circlip 5 after installation in the axis side of ball pin axis It is upwardly formed constraint, to prevent circlip 5 from falling off from limiting slot 44.Specifically, using the top plane of straight bar section 43 Outer perimeter section is as confined planes 441, referring to shown in Fig. 3.
Further, above-mentioned bearing surface can be the end face 54 in circlip 5 away from bulb 41, which is flat Face.Alternatively, as shown in Figure 4, the inner wall 52 of circlip 5 is recessed inwardly, i.e., it is recessed to 5 body interior of circlip, shape At with the side wall surface 53 axis of circlip 5 approximately perpendicular step surface 51 and can be bonded with the periphery of straight bar section 43, step Face 51 constitutes aforementioned bearing surface.
The height of the lower surface of circlip 5 and taper sheath after installation is lower than the height of the upper surface of straight bar section 43, with Guarantee to form the gap for placing limit component between taper sheath and ball pin bar 4.
The top surface of taper sheath is abutted with the bottom surface of dust cover 6 for the anti-dust performance for enhancing dust cover 6 referring to Fig. 6.This Outside, seal groove 61 is set in the position that dust cover 6 and ball pin bar 4 are engaged, and fills seal oil rouge in seal groove 61.
With continued reference to Fig. 6,3 ball pin assembly of control arm further includes the end cap 9 that 8 one end of ball bowl is arranged in, and end cap 9 is embedded in ball Deviate from key seat 31 with hindering ball-blocking bowl 8 out of ball pin seat 31.Specifically, before ball pin is not packed into ball pin seat 31, ball pin seat The bore on 31 tops is identical as end cap 9, after end cap 9 is packed into from top to bottom, using cold-drawing technology, makes opening for 31 top of ball pin seat Bore is to bending after retraction, to cover the edge of end cap 9, is formed and is stopped to end cap 9, can prevent end cap 9 from deviating from.End cap 9 is set The installation of ball bowl 8 can be facilitated, and can prevent the ball bowl 8 after installation from deviating from.
The second aspect of the utility model also provides a kind of vehicle, and the steeraxle of this kind of vehicle uses 1 He of aluminum knuckle Aluminum control arm 3, wherein control arm 3 is supplied in the form of aforementioned control arm ball pin assembly.
It is understood that the vehicle has all technical effects of aforementioned control arm ball pin assembly, details are not described herein.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the utility model, still, this Field technical staff is it is easily understood that the protection scope of the utility model is expressly not limited to these specific embodiments.? Under the premise of the principles of the present invention, those skilled in the art can make equivalent change to the relevant technologies feature Or replacement, the technical solution after these changes or replacement are fallen within the protection scope of the utility model.

Claims (10)

1. a kind of control arm ball pin assembly, comprising:
Control arm which is provided with ball pin seat;
Ball bowl is mounted in the ball pin seat;
Ball pin comprising bulb and the ball pin bar connecting with the bulb, the bulb are movably disposed in the ball bowl, The ball pin bar includes straight bar section and the cone rod segment between the straight bar section and the bulb;
Dust cover is fixed on the control arm by clip;
It is characterized in that, the control arm ball pin assembly further includes the taper sheath and sandwiched for being socketed in the cone rod segment periphery Limit component between the taper sheath and the ball pin bar, the limit component be arranged to stop the taper sheath from It falls off in the cone rod segment.
2. control arm ball pin assembly according to claim 1, which is characterized in that the taper sheath and the cone rod segment use Interference fit connection.
3. control arm ball pin assembly according to claim 1, which is characterized in that the cone rod segment and/or the cone rod segment It is radially retracted with the junction of the straight bar section to form the limiting slot for accommodating the limit component.
4. control arm ball pin assembly according to claim 3, which is characterized in that the limit component is to be socketed in the limit Circlip in the slot of position.
5. control arm ball pin assembly according to claim 4, which is characterized in that the limiting slot is described straight including being formed in Confined planes at the top of rod segment, correspondingly the circlip includes the bearing surface that can be abutted with the confined planes.
6. control arm ball pin assembly according to claim 5, which is characterized in that the bearing surface is in the circlip Away from the end face of the bulb;Or
The inner wall of the circlip is recessed inwardly to form the approximately perpendicular step surface of axis with the circlip, institute It states step surface and constitutes the bearing surface.
7. control arm ball pin assembly according to claim 1 to 6, which is characterized in that the top surface of the taper sheath It is abutted with the bottom surface of the dust cover.
8. control arm ball pin assembly according to claim 7, which is characterized in that the material of the control arm is aluminium alloy, The taper sheath is steel bushing.
9. control arm ball pin assembly according to claim 1, which is characterized in that the control arm ball pin assembly further includes setting The end cap in ball bowl one end is set, the end cap is embedded in the ball pin seat to stop the ball bowl out of described ball pin seat Abjection.
10. a kind of vehicle, which is characterized in that the vehicle includes that control arm ball pin of any of claims 1-9 is total At.
CN201821272487.9U 2018-08-08 2018-08-08 Control arm ball pin assembly and vehicle configured with the control arm ball pin assembly Active CN209012250U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821272487.9U CN209012250U (en) 2018-08-08 2018-08-08 Control arm ball pin assembly and vehicle configured with the control arm ball pin assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821272487.9U CN209012250U (en) 2018-08-08 2018-08-08 Control arm ball pin assembly and vehicle configured with the control arm ball pin assembly

Publications (1)

Publication Number Publication Date
CN209012250U true CN209012250U (en) 2019-06-21

Family

ID=66829587

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821272487.9U Active CN209012250U (en) 2018-08-08 2018-08-08 Control arm ball pin assembly and vehicle configured with the control arm ball pin assembly

Country Status (1)

Country Link
CN (1) CN209012250U (en)

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200927

Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province

Patentee after: Weilai (Anhui) Holding Co., Ltd

Address before: 30 Floor of Yihe Building, No. 1 Kangle Plaza, Central, Hong Kong, China

Patentee before: NIO NEXTEV Ltd.