CN107344582A

CN107344582A - All-terrain vehicle rear suspension system

Info

Publication number: CN107344582A
Application number: CN201710352802.2A
Authority: CN
Inventors: 陈向阳; 范戈; 李想; 闫世印; 陈官平
Original assignee: Zhejiang Feishen Vehicle Co Ltd
Current assignee: Zhejiang Feishen Vehicle Co Ltd
Priority date: 2017-05-18
Filing date: 2017-05-18
Publication date: 2017-11-14

Abstract

The present invention relates to a kind of all-terrain vehicle rear suspension system, it includes：It is in substantially parallel relationship to the damper of longitudinal direction of car plane；It is placed in two secondary rear trailing arms of the engine back lower place, including the trailing arm sleeve pipe being connected with vehicle frame, trailing arm sleeve pipe both ends set the first bend pipe and the second bend pipe respectively, and the first bend pipe end connects with the second bend pipe, reinforcing plate is set in the space of three pipes wrapping, reinforcing plate side wall connects with the body of place side；Support tube is set on second bend pipe, support tube connects the lower end of the damper, axle support is set in the end of support tube and the second bend pipe；And torque arm, the horizontal lower section of trailing arm in the rear, end set torque arm connecting rod, torque arm connecting rod are upward through the reinforcing plate and are connected to the rear trailing arm.Rear trailing arm structural strength is big, and bearing capacity is strong, has higher impact resistance；Compact overall structure, suspension movement stroke is big, lifts damping effect, improves comfortableness, reduces tire because being worn caused by motion lateral shift.

Description

All-terrain vehicle rear suspension system

Technical field

The present invention relates to a kind of all-terrain vehicle, more particularly, to a kind of all-terrain vehicle rear suspension system.

Background technology

All-terrain vehicle is more using double transverse arm rear suspension systems, such as entitled " a kind of beach buggy " in the prior art（Bulletin Number：CN206141707U）Public technology employed in post-suspension structure；But prior art comes with some shortcomings：Take empty Between it is big, damper movement travel is short, and comfortableness is poor, vehicle tire generation side-to-side movement offset distance when bump course travel, Tire produces abrasion.

The content of the invention

Present invention is primarily intended to provide a kind of all-terrain vehicle rear-mounted system compact-sized, damper movement travel is larger System.

The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：All-terrain vehicle rear-mounted system System, it includes：

It is in substantially parallel relationship to the damper of longitudinal direction of car plane；

Two secondary rear trailing arms of the engine back lower place are placed in, including the trailing arm sleeve pipe being connected with vehicle frame, trailing arm sleeve pipe both ends are set respectively The first bend pipe and the second bend pipe are put, the first bend pipe end connects with the second bend pipe, sets reinforcing plate in the space of three pipes wrapping, strengthens Plate side wall connects with the body of place side；Support tube is set on second bend pipe, support tube connects the lower end of the damper, supported The end of pipe and the second bend pipe sets axle support；

And torque arm, the horizontal lower section of trailing arm in the rear, end set torque arm connecting rod, torque arm connecting rod is upward through described Reinforcing plate is simultaneously connected to the rear trailing arm.

Pass through above-mentioned technical proposal, after the present invention is formed using trailing arm sleeve pipe, the first bend pipe, the second bend pipe and reinforcing plate Trailing arm structure, structural strength is big, and bearing capacity is strong, has higher impact resistance；The compact overall structure of the present invention, suspension Movement travel is big, improves damping effect, reduces all-terrain vehicle jolting and shake under steam, improves all-terrain vehicle Comfortableness, reduce tire because being worn caused by motion lateral shift.

Brief description of the drawings

Accompanying drawing 1 is a kind of structural representation of the present invention.

Accompanying drawing 2 is enlarged drawing at the A of accompanying drawing 1.

Accompanying drawing 3 is a kind of structural representation of rear trailing arm.

Accompanying drawing 4 is a kind of assembling structure schematic diagram of trailing arm sleeve pipe.

Wherein：1st, brake；2nd, wheel rim terminal pad；3rd, brake disc；4th, damper；5th, rear trailing arm；6th, installation bolt；7、T Type bushing；8th, oil sealing；9th, double row ball bearing；10th, interstage bushing；11st, torque arm；12nd, torque arm connecting rod；13rd, trailing arm sleeve pipe； 14th, the first bend pipe；15th, the second bend pipe；16th, upper reinforcing plate；17th, lower reinforcing plate；18th, side reinforcing plate；19th, support tube；20th, wheel shaft Bearing；21st, vehicle frame；41st, shock absorber support；42nd, rack side plate；43rd, side plate hook part；121st, torque arm support；141st, first Pipe；142nd, the second branch pipe；151st, horizontal section；191st, support member.

Embodiment

Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.

Embodiment：All-terrain vehicle rear suspension system of the present invention, as shown in Figure 1, it includes：It is in substantially parallel relationship to longitudinal direction of car The damper 4 of plane, the two secondary rear trailing arms 5 for being placed in the engine back lower place, and torque arm 11.

As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, rear trailing arm 5 is pipe frame structure, including the trailing arm sleeve pipe being connected with vehicle frame 21 13, the both ends of trailing arm sleeve pipe 13 set the first bend pipe 14 and the second bend pipe 15, the end of the first bend pipe 14 and the phase of the second bend pipe 15 respectively Connect, reinforcing plate, reinforcing plate side wall and institute are set in the space that the bend pipe 14 of trailing arm sleeve pipe 13 first and the pipe of the second bend pipe 15 3 wrap Body in side connects；Support tube 19 is set on the body of second bend pipe 15, support tube 19 connects the lower end of damper 4, supported The end of the bend pipe 15 of pipe 19 and second sets axle support 20.This pipe frame structure of rear trailing arm 5, and this pipe support and reinforcing plate Integral solder（Reinforcing plate side wall connects with the body of place side, and bonding strength is high）Integrative-structure, greatly improved overall strong Degree, is unlikely to deform, is not easy to break, rear trailing arm 5 is had higher bulk strength, large carrying capacity, improve impact resistance； Based on this post-suspension structure, when all-terrain vehicle travels on complicated landform, the anti-ability of jolting is strengthened.

Torque arm 11 is horizontal below rear trailing arm 5, end set torque arm connecting rod 12, and torque arm connecting rod 12, which is upward through, to be added Strong plate is simultaneously connected to the body of rear trailing arm 5, is preferably fixed on the body of the second bend pipe 15.Torque arm 11 improves all-terrain vehicle Stationarity, using the technical program, reduce the position of the main body of torque arm 11, it is lower slightly compared to torque arm in conventional art 11 Or the organization plan higher than rear trailing arm, the technical program fully release suspension upper space, make suspension movement travel big.

The connection end that axle support is connected to for the intensity of further raising rear trailing arm 5, especially raising rear trailing arm 5 is strong Degree, is that the endpiece of the first bend pipe 14 is the first branch pipe 141 and the end phase of the second branch pipe 142 as a preferable technical scheme The bifurcation structure for connecing and forming, i.e. the first bend pipe 14, the first branch pipe 141 and the three of the second branch pipe 142 are connected with one end；Second The endpiece bending of bend pipe 15 is in horizontal, horizontal section 151 of tail end connection axle support 20, head end the first branch pipe 141 of connection；Second Branch pipe 142 is fixedly connected on support tube 19.Support member 191, support member are set in the side wall of support tube 19 away from the side of the second branch pipe 142 Axle support 20 is fixed in 191 ends；The branch pipe 141 of support member 191 and first is split in the both sides of support tube 19, can improve support tube 19 Support strength.In the technical program, have the following advantages that：First, the endpiece bending of the second bend pipe 15 is in horizontal, horizontal section 151 connection axle supports 20, bigger space is provided for attended operation, is easy to attended operation, particularly horizontal structure conduct Connecting portion, compared to incline structure, deformation is not easy, and stress equalization is more preferably, makes the stability of connecting portion higher；Second, the One branch pipe 141 is connected to horizontal section 151 of tail end, and support is provided for horizontal section 151；Third, the second branch pipe 142 is fixedly connected In support tube 19, the both ends of support tube 19 are made to have supporting construction（I.e.：Both ends are carried by the second branch pipe 142 and the second bend pipe 15 respectively For support）, intensity is higher；Fourth, the endpiece bifurcated of the first bend pipe 14 is the first branch pipe 141 and the second branch pipe 142, improving While bulk strength, also with space hold it is small the advantages of.

For the structure of the endpiece bifurcated of above-mentioned first bend pipe 14, the first branch pipe 141 and the second branch pipe 142 can be single Individual, then end connect；It is that in the first branch pipe 141 and the second branch pipe 142, one is first as a preferable scheme Bend pipe 14 extends the body formed, and another is the body for being fixed on the sidepiece of the first bend pipe 14, and this mode, structural strength is more It is high；Further preferred mode is that the first branch pipe 141 is formed by the bending of the body of the first bend pipe 14, welding is in the first bend pipe 14 Outside, it is easy to operation.

Support tube 19 is erected at the top of the first branch pipe 141, and the connecting portion of support tube 19 and the second bend pipe 15 is in and closed on On the body of horizontal section 151 of the second bend pipe 15.Under vertical view, the second bend pipe 15, the first branch pipe 141, the three of support tube 19 are in The framework of triangle intersection, further increases bulk strength.

The outside of second branch pipe 142 is provided with side reinforcing plate 18, and the first bend pipe 14 is fixed in the one end of side reinforcing plate 18, the other end Upper support is in support tube 19, lower support in horizontal section 151 of the second bend pipe 15.The setting of side reinforcing plate 18, strengthens simultaneously Horizontal section 151 of support strength of the bend pipe 15 of support tube 19 and second.

The middle part of side reinforcing plate 18 sets through hole, upper and lower two side edgefold；Through hole loss of weight, and it is provided with the plate body of side reinforcing plate 18 Certain elasticity, is suitable for the unbalanced situation of lateral force；In the end of connection support tube 19, arc is set close to the end face of upper hem Shape groove and with the deep-slotted chip breaker holding on support tube 19, set deep-slotted chip breaker and with the deep-slotted chip breaker holding in horizontal stroke close to the end face of lower hem Put in section 151；It is easy to connect, and deep-slotted chip breaker improves contact area, beneficial to dissipation of ferees, avoids contact with face because of by-local forces Excessively concentrate and be damaged.

Shock absorber support 41 is set on support tube 19, and the main body of shock absorber support 41 is plate body, and plate body both sides are relative to be bent Into rack side plate 42, main body plate body forms U-shaped frame with two stands side plate 42；Two stands side plate 42 is vertically arranged, and lower wall is resisted against branch On the body of stay tube 19, the horizontal rotating shaft in middle part, rotating shaft is connected to the lower end of damper 4.Structural strength is big, easy to connect, is easy to Make and install.

The lateral bending extension in front portion of the rack side plate 42 of second bend pipe 15 forms side plate hook part 43；The head of side plate hook part 43 Lower wall be resisted against the second bend pipe 15, the lower wall of root is resisted against on the body of support tube 19., can by side plate hook part 43 Part longitudinal force is passed into the second bend pipe 15, mitigates the load of support tube 19, makes the wheel shaft branch being connected with support tube 19 Seat 20 is more steady.

The structure that reinforcing plate overlaps for two plates, including the upper reinforcing plate 16 and lower reinforcing plate 17 overlapped up and down；Away from trailing arm The corner excision of the upper reinforcing plate 16 of sleeve pipe 13（Cut relative to the integrity profile of lower reinforcing plate 17, upper reinforcing plate 16 in corner The profile removed）, torque arm support 121 is set in the space of cutout unit, torque arm support 121 is fixed on the second bend pipe 15, and with Torque arm connecting rod 12 connects.Space hold is reduced, makes overall structure more compact.

As shown in Figure 4, interstage bushing 10 is set in trailing arm sleeve pipe 13, the both ends of interstage bushing 10 are all provided with the limit convex of annular Platform, positive stop lug boss outside are arranged double row ball bearing 9；Trailing arm sleeve pipe 13 is placed between the side wall of two parallel vehicle frames 21, vehicle frame T-shaped bushing 7 and oil sealing 8 are set between 21 side wall and the outer end of double row ball bearing 9；The side wall of vehicle frame 21 sets fixed trailing arm sleeve pipe 13 Installation bolt 6, installation bolt 6 passes through interstage bushing 10.The T-shaped section of bushing 7 is L-shaped, including transverse part and vertical portion, founds portion's side wall Abut in the side wall of vehicle frame 21, transverse part be enclosed on interstage bushing 10 and with the bearing inner race of double row ball bearing 9 against；8 sets of oil sealing In transverse part periphery.This structure, it is fixed, flexible, large carrying capacity is rotated, lubrication is good.

The present invention uses rear trailing arm pattern, and mounting arrangements are located at the engine back lower place, inter-axle shaft both sides, and installation bolt is hung down Directly in longitudinal direction of car plane, damper is parallel to longitudinal direction of car plane, and horizontal torque arm is located at below rear trailing arm, torque arm connecting rod Passed from rear trailing arm centre position；Wherein, rear trailing arm and both ends double-row bearing, interstage bushing, two outsides are oil sealing and T-shaped bushing It is press fit together, trailing arm is connected with vehicle frame by bolt；The overall structure that rear trailing arm is welded using body with plate body, is dragged Arm sleeve pipe, the first bend pipe, the second bend pipe, support tube, axle support form several space triangulars and form three-dimensional support structure, and Strengthened with lower reinforcing plate, upper reinforcing plate, side reinforcing plate.

It should be noted that in the present invention, the first bend pipe 14, the second bend pipe 15, support tube 19, the first branch pipe 141, The grade component of two branch pipe 142, is illustrated with pipe fitting；In fact, the part or all of component in above-mentioned component can be used beyond pipe fitting Entity component, such as rod member, plate；Therefore, it is this only in a manner of the part or all of pipe fitting of the replacement such as rod member or plate, no Depart from the inventive principle of the present invention, thereby still belong within protection scope of the present invention.

It is presently believed to be most practical and preferred embodiment although combined invention has been described, can With understanding, the invention is not limited in disclosed embodiment and element, on the contrary, it is intended to cover being included in appended power Combination, equivalent device and the equivalent element of various remodeling, feature within the spirit and scope of sharp claim.Therefore, The present invention be used for cover to the present invention remodeling and deformation, as long as they appended claims and they wait efficacious prescriptions Within the scope of case.

Claims

A kind of 1. all-terrain vehicle rear suspension system, it is characterised in that including：

It is in substantially parallel relationship to the damper of longitudinal direction of car plane（4）；

It is placed in two secondary rear trailing arms of the engine back lower place（5）, including with vehicle frame（21）The trailing arm sleeve pipe of connection（13）, trailing arm sleeve pipe （13）Both ends set the first bend pipe respectively（14）With the second bend pipe（15）, the first bend pipe（14）End and the second bend pipe（15）Phase Connect, set reinforcing plate in the space of three pipes wrapping, reinforcing plate side wall connects with the body of place side；Second bend pipe（15）On set support Pipe（19）, support tube（19）Connect the damper（4）Lower end, in support tube（19）With the second bend pipe（15）End set wheel Shaft stool（20）；

And torque arm（11）, horizontal trailing arm in the rear（5）Lower section, end set torque arm connecting rod（12）, torque arm connecting rod （12）It is upward through the reinforcing plate and is connected to the rear trailing arm（5）.
2. all-terrain vehicle rear suspension system according to claim 1, it is characterised in that：First bend pipe（14）Endpiece For the first branch pipe（141）With the second branch pipe（142）The bifurcation structure that end connects and formed, the second branch pipe（142）It is fixedly connected In the support tube（19）；Second bend pipe（15）Endpiece bending in horizontal, horizontal section（151）Tail end connect the wheel Shaft stool（20）, head end connection first branch pipe（141）.
3. all-terrain vehicle rear suspension system according to claim 2, it is characterised in that：First branch pipe（141）With second Pipe（142）In, one is the first bend pipe（14）Extend the body formed, another is to be fixed on the first bend pipe（14）The pipe of sidepiece Body.
4. all-terrain vehicle rear suspension system according to claim 2, it is characterised in that：The support tube（19）It is erected at One branch pipe（141）Top, and the support tube（19）With second bend pipe（15）Connecting portion be in close on described horizontal section （151）The second bend pipe（15）Body on.
5. all-terrain vehicle rear suspension system according to claim 2, it is characterised in that：Second branch pipe（142）Outside Provided with side reinforcing plate（18）, side reinforcing plate（18）First bend pipe is fixed in one end（14）, the upper support of the other end is in institute State support tube（19）, lower support is in second bend pipe（15）Horizontal section（151）.
6. all-terrain vehicle rear suspension system according to claim 5, it is characterised in that：The side reinforcing plate（18）Middle part If through hole, upper and lower two side edgefold；Connecting the support tube（19）End, set deep-slotted chip breaker and close to the end face of upper hem with this Deep-slotted chip breaker holding is in the support tube（19）On, set deep-slotted chip breaker and with the deep-slotted chip breaker holding in the horizontal stroke close to the end face of lower hem Put section（151）On.
7. according to the all-terrain vehicle rear suspension system described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterised in that：The branch Stay tube（19）Upper setting shock absorber support（41）, shock absorber support（41）Main body be plate body, plate body both sides are relative to be bent into branch Frame side plate（42）, main body plate body and two stands side plate（42）Form U-shaped frame；Two stands side plate（42）It is vertically arranged, lower wall is resisted against The support tube（19）Body on, the horizontal rotating shaft in middle part, rotating shaft is connected to the damper（4）Lower end.
8. all-terrain vehicle rear suspension system according to claim 7, it is characterised in that：Neighbouring second bend pipe（15）'s Rack side plate（42）The lateral bending extension in front portion form side plate hook part（43）；Side plate hook part（43）The lower wall on head is resisted against Second bend pipe（15）, the lower wall of root is resisted against the support tube（19）Body on.
9. according to the all-terrain vehicle rear suspension system described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterised in that：It is described to add The structure that strong plate overlaps for two plates, including the upper reinforcing plate overlapped up and down（16）And lower reinforcing plate（17）；Away from trailing arm sleeve pipe （13）Upper reinforcing plate（16）Corner excision, torque arm support is set in cutout unit（121）, torque arm support（121）It is fixed In second bend pipe（15）, and with the torque arm connecting rod（12）Connect.
10. according to the all-terrain vehicle rear suspension system described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterised in that：It is described to drag Arm sleeve pipe（13）Inside set interstage bushing（10）, interstage bushing（10）Both ends are all provided with positive stop lug boss, and biserial is arranged on the outside of positive stop lug boss Ball bearing（9）；The trailing arm sleeve pipe（13）It is placed in the two parallel vehicle frames（21）Side wall between, the vehicle frame（21）'s Side wall and double row ball bearing（9）T-shaped bushing is set between outer end（7）And oil sealing（8）；The vehicle frame（21）Side wall set fixation drag Arm sleeve pipe（13）Installation bolt（6）, installation bolt（6）Through interstage bushing（10）.