CN107719472A - A kind of two-part underframe of coach and the car using the underframe of coach - Google Patents

A kind of two-part underframe of coach and the car using the underframe of coach Download PDF

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Publication number
CN107719472A
CN107719472A CN201711189516.5A CN201711189516A CN107719472A CN 107719472 A CN107719472 A CN 107719472A CN 201711189516 A CN201711189516 A CN 201711189516A CN 107719472 A CN107719472 A CN 107719472A
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CN
China
Prior art keywords
truss
chassis section
underframe
coach
right vertical
Prior art date
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Granted
Application number
CN201711189516.5A
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Chinese (zh)
Other versions
CN107719472B (en
Inventor
赵永军
刘磊磊
荆宝锋
张倩
李庆轩
赵双武
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Henan Shaolin Bus Co Ltd
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Henan Shaolin Bus Co Ltd
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Publication date
Application filed by Henan Shaolin Bus Co Ltd filed Critical Henan Shaolin Bus Co Ltd
Priority to CN201711189516.5A priority Critical patent/CN107719472B/en
Publication of CN107719472A publication Critical patent/CN107719472A/en
Application granted granted Critical
Publication of CN107719472B publication Critical patent/CN107719472B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/08Understructures, i.e. chassis frame on which a vehicle body may be mounted built up with interlaced cross members

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A kind of car the present invention relates to two-part underframe of coach and using the underframe of coach, the two-part underframe of coach is made up of the fall crossbeam type chassis section and truss-like chassis section of front and rear arrangement, fall crossbeam type chassis section includes being fixed on the left longeron, the right vertical beam that extend along the longitudinal direction of truss-like chassis section front end, and the bit space that allows for getting out of the way corresponding trailing wheel is provided with left and right sides of truss-like chassis section.Underframe of coach in the present invention only forms this two sections by fall crossbeam type chassis section and truss-like chassis section and formed, it is convenient that fall crossbeam type chassis provides for the installation of power assembly, ensure the overall structure rigidity of power assembly simultaneously, the rigidity of the counter-bending and antitorque degree of truss-like chassis section is big, quality is small, and stability is good.The structure is highly suitable for light bus, that is, while meeting overall structure rigidity and intensity, realizes lightweight, contributes to vehicle energy-conservation drop.

Description

A kind of two-part underframe of coach and the car using the underframe of coach
Technical field
A kind of car the present invention relates to two-part underframe of coach for light-duty front-mounted passenger car and using the underframe of coach.
Background technology
Under the guiding of national policy regulation, the energy-saving emphasis for having become enterprise's production work.Given birth to for car Enterprise is produced, makes great efforts to reduce chassis consumption, not only contributes to energy conservation, and directly affect the economic interests of product user.Visitor Car belongs to light bus according to Vehicle length, car of the length in 3.5m ~ 7m, current such car for my company leading production Product, for response national policy regulation and car cost is reduced, the design to such vehicle frame proposes higher requirement.
Chinese patent CN104843069A discloses a kind of " light bus Undercarriage structure and light bus structure ", and this is light-duty Underframe of coach is fall crossbeam type Integral frame structure, and it mainly includes two crossbeams for running through whole vehicle frame along the longitudinal direction.Such Body frame structure for automotive is more using crossbeam, and vehicle mass is big, and consumptive material is more, and center of gravity is higher, and High-speed running stability is poor.Often at present The vehicle frame classification seen also has three-stage vehicle frame and full-bearing type vehicle frame, but three-stage vehicle frame, which corresponds to motorbus, more to be adapted to, It is poorly suitable for light bus;When full-bearing type vehicle frame is used for light bus, the assembling of dynamical system is cumbersome, therefore enterprise It is badly in need of developing a kind of underframe of coach that can be applied to light bus.
The content of the invention
It is an object of the invention to provide a kind of two-part underframe of coach for light-duty front-mounted passenger car, to solve existing skill The problem of fall crossbeam type vehicle frame quality is big in art;It is a kind of using the light of the two-part underframe of coach the present invention also aims to provide Type car.
In order to solve the above technical problems, the technical scheme of two-part underframe of coach is as follows in the present invention:
Two-part underframe of coach, the two-part underframe of coach by front and rear arrangement fall crossbeam type chassis section and truss-like chassis section structure Into fall crossbeam type chassis section includes being fixed on the left longeron, the right vertical beam that extend along the longitudinal direction of truss-like chassis section front end, truss The bit space that allows for getting out of the way corresponding trailing wheel is provided with left and right sides of formula chassis section.
Left longeron, right vertical beam are fixed on the middle part of truss-like chassis section short transverse.
Left longeron, right vertical beam are channel-section steel structure, and left longeron, the notch of right vertical beam are relative, left longeron, the front end of right vertical beam Connected by connecting cross beam.
Left longeron, right vertical beam rear end waist wall on be provided with stress relief hole.
Diagonal brace and lower diagonal brace are respectively arranged between the both sides up and down of each longeron and truss-like chassis section.
Left and right longeron is located at the middle part upper position of truss-like chassis section, and the length of lower diagonal brace is longer than the length of diagonal brace.
Truss-like chassis section includes the first truss-like chassis part and the second truss-like chassis section part of front and rear arrangement, allows Bit space is arranged on the second truss-like chassis section part, and the first truss-like undercarriage portion point includes first to be welded by section bar Front baffle, the first afterframe and the first surrounding framework being connected between the first front baffle, the first afterframe, the first front baffle bag Left vertical wall and right vertical wall are included, left longitudinal beam welding is fixed on left vertical wall, and right vertical beam is fixedly welded on right vertical wall.
Second truss-like undercarriage portion point includes framework on second and the revolver cage being arranged on second at left and right sides of framework With right wheel cage, the front and back end of framework is respectively welded the second front baffle and the second afterframe being vertically arranged on second, and second Truss-like chassis part also includes the second left vertical frame and the second right vertical frame that are vertically arranged, the second left vertical frame, the second right vertical frame Upper end is connected with frame welding on second, allow bit space be respectively formed in the second right vertical frame and right wheel cage and the first left vertical frame with Between revolver cage, framework, the second left vertical frame, the second right vertical frame, the second front baffle and the second afterframe surround notch on second Trench structure directed downwardly.
The technical scheme of car is:Including power assembly, in addition to two-part underframe of coach, the two-part underframe of coach by The fall crossbeam type chassis section and truss-like chassis section of front and rear arrangement are formed, and fall crossbeam type chassis section is included before being fixed on truss-like chassis section The left longeron, the right vertical beam that extend along the longitudinal direction at end, be provided with left and right sides of truss-like chassis section for get out of the way it is corresponding after Wheel allows bit space.
Left longeron, right vertical beam are fixed on the middle part of truss-like chassis section short transverse.
Left longeron, right vertical beam are channel-section steel structure, and left longeron, the notch of right vertical beam are relative, left longeron, the front end of right vertical beam Connected by connecting cross beam.
Left longeron, right vertical beam rear end waist wall on be provided with stress relief hole.
Diagonal brace and lower diagonal brace are respectively arranged between the both sides up and down of each longeron and truss-like chassis section.
Left and right longeron is located at the middle part upper position of truss-like chassis section, and the length of lower diagonal brace is longer than the length of diagonal brace.
Truss-like chassis section includes the first truss-like chassis part and the second truss-like chassis section part of front and rear arrangement, allows Bit space is arranged on the second truss-like chassis section part, and the first truss-like undercarriage portion point includes first to be welded by section bar Front baffle, the first afterframe and the first surrounding framework being connected between the first front baffle, the first afterframe, the first front baffle bag Left vertical wall and right vertical wall are included, left longitudinal beam welding is fixed on left vertical wall, and right vertical beam is fixedly welded on right vertical wall.
Second truss-like undercarriage portion point includes framework on second and the revolver cage being arranged on second at left and right sides of framework With right wheel cage, the front and back end of framework is respectively welded the second front baffle and the second afterframe being vertically arranged on second, and second Truss-like chassis part also includes the second left vertical frame and the second right vertical frame that are vertically arranged, the second left vertical frame, the second right vertical frame Upper end is connected with frame welding on second, allow bit space be respectively formed in the second right vertical frame and right wheel cage and the first left vertical frame with Between revolver cage, framework, the second left vertical frame, the second right vertical frame, the second front baffle and the second afterframe surround notch on second Trench structure directed downwardly.
Beneficial effects of the present invention are:Underframe of coach in the present invention is only by fall crossbeam type chassis section and truss-like chassis section structure Into this two sections compositions, it is convenient that fall crossbeam type chassis provides for the installation of power assembly, while ensures that the overall structure of power assembly is firm Degree, the rigidity of the counter-bending and antitorque degree of truss-like chassis section is big, and quality is small, and stability is good.The structure is highly suitable for light-duty Car, that is, while meeting overall structure rigidity and intensity, lightweight is realized, contribute to vehicle energy-saving.
Further, left and right longeron is arranged at the middle part in the front height direction of truss-like chassis section, in left and right longeron Both sides up and down diagonal brace, lower diagonal brace are set respectively, that is, ensure that the bonding strength of left and right longeron and truss-like chassis section, again Contribute to the height of C.G. of reduction vehicle, be advantageous to improve the stability that vehicle is run at high speed.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of two-part underframe of coach in the present invention.
Embodiment
The embodiment of car is as shown in Figure 1:Car length in the present invention belongs to light bus for 6 meters, including power is total Into(Not shown in figure)With two-part underframe of coach, power assembly includes engine, and two-part underframe of coach is by front and rear arrangement Fall crossbeam type chassis section 2 and truss-like chassis section 6 are formed, the full bearing structure of the corresponding vehicle body frame of truss-like chassis section 6, truss-like Chassis section is located at the postmedian of whole underframe of coach, and truss-like chassis section includes the first truss-like chassis part 14 of front and rear arrangement With the second truss-like chassis section part 11, the first truss-like undercarriage portion point includes the first front baffle being welded by square tube section 16th, the first afterframe 13 and the first surrounding framework 15 being connected between the first front baffle 16, the first afterframe 13, the first front frame Frame 16, the first afterframe 13 and the first surrounding framework 15 surround rectangular box like structure.First front baffle includes left vertical arm 20 and the right side Vertical arm 5, fall crossbeam type chassis section include being fixedly welded on the left longeron 22 of upper position among left vertical arm and are fixedly welded on right perpendicular The right vertical beam 3 of upper position among arm, left and right longeron is the channel-section steel structure that length extends along the longitudinal direction, left and right longeron Notch is relative, and left longeron, the front end of right vertical beam are connected by preceding connecting cross beam 1, left longeron, right vertical beam rear end between be connected with Connecting cross beam 4 afterwards, left longeron, right vertical beam rear end waist arm on be provided with stress relief hole 21.The both sides up and down of each longeron with it is right Diagonal brace 18 and lower diagonal brace 19 are respectively arranged between Ying Shubi, the length of lower diagonal brace 19 is longer than the length of diagonal brace.
Second truss-like undercarriage portion point includes framework 8 on second and is arranged at revolver cover on second at left and right sides of framework 8 Frame 9 and right wheel cage 7, the front and back end of framework is respectively welded the second front baffle 12 and the second afterframe being vertically arranged on second 23, the second truss-like chassis part also includes the second left vertical frame and the second right vertical frame being vertically arranged, the second left vertical frame, second right side The upper end of vertical frame is connected with frame welding on second, between the second right vertical frame and right wheel cage and the second left vertical frame and revolver cage Between formed allow bit space 10 for corresponding trailing wheel of stepping down respectively, framework 8 on second, the second left vertical frame, the second right vertical frame, the Two front baffles 12 and the second afterframe 23 surround notch trench structure directed downwardly.Also set in the rear end of the second truss-like chassis part It is equipped with afterbody truss portion.Whole truss-like chassis section includes the left girder 24 of truss and the right girder of truss extended along the longitudinal direction 25, multiple truss crossbeams 26 extended in left-right direction, each truss crossbeam edge are provided with the left girder of truss, the right girder of truss Fore-and-aft direction arranged for interval, the left girder of truss, the right girder of truss, truss crossbeam and left longeron, right vertical beam are light-duty for undertaking The main load-carrying of car.
Specific assembled, the front-wheel of car are located at left longeron, the both sides of right vertical beam, and the trailing wheel of car is stepped down positioned at corresponding In space, the truss-like chassis section of posterior segment, counter-bending and anti-torsion rigidity is big, and quality is small, and stability is good, when left longeron, Right vertical beam is up and down when deforming, and stress focuses primarily upon the link position of left and right longeron and truss-like chassis section, and the of square box structure One truss-like chassis part can be very good to undertake the deformation load.In car actual travel, traveling road conditions are complex, no Only include above-mentioned underframe of coach to deform up and down, there is also the near front wheel and the hanging situation of off hind wheel, deformation takes place mostly in the right side The left end of longeron and afterbody truss portion, the stress relief hole on the waist wall of right vertical beam can realize stress release.Before in the present invention The beam type chassis section of section uses crossbeam structure, ensures the overall construction intensity of power assembly, ensures power assembly system and annex Assembling simplification, mitigate labor strength.The truss-like chassis section of the grid barrier formula of posterior segment, counter-bending and anti-torsion Rigidity it is big, quality is small, and stability is good.The junction of two kinds of structures meets intensity requirement by analyzing rationally connection.Whole car Frame realizes lightweight while the rigidity of structure and intensity is met, contributes to vehicle energy-saving.

Claims (9)

1. two-part underframe of coach, it is characterised in that:The two-part underframe of coach is by the fall crossbeam type chassis section of front and rear arrangement and purlin Posture chassis section is formed, and the left side extended along the longitudinal direction that fall crossbeam type chassis section includes being fixed on truss-like chassis section front end is indulged Beam, right vertical beam, the bit space that allows for getting out of the way corresponding trailing wheel is provided with left and right sides of truss-like chassis section.
2. two-part underframe of coach according to claim 1, it is characterised in that:Left longeron, right vertical beam are fixed on truss-like The middle part of chassis section short transverse.
3. two-part underframe of coach according to claim 1, it is characterised in that:Left longeron, right vertical beam are channel-section steel structure, Left longeron, the notch of right vertical beam are relative, and left longeron, the front end of right vertical beam are connected by connecting cross beam.
4. two-part underframe of coach according to claim 3, it is characterised in that:Left longeron, right vertical beam rear end waist wall on It is provided with stress relief hole.
5. two-part underframe of coach according to claim 2, it is characterised in that:The both sides up and down of each longeron and truss-like bottom Diagonal brace and lower diagonal brace are respectively arranged between frame section.
6. two-part underframe of coach according to claim 5, it is characterised in that:Left and right longeron is located at truss-like chassis section Middle part upper position, the length of lower diagonal brace is longer than the length of diagonal brace.
7. the two-part underframe of coach according to claim 1 ~ 6 any one, it is characterised in that:Truss-like chassis section includes First truss-like chassis part of front and rear arrangement and the second truss-like chassis section part, allow bit space to be arranged at the second truss-like bottom On frame section part, the first truss-like undercarriage portion point includes the first front baffle, the first afterframe and the connection being welded by section bar The first surrounding framework between the first front baffle, the first afterframe, the first front baffle include left vertical wall and right vertical wall, left longeron It is fixedly welded on left vertical wall, right vertical beam is fixedly welded on right vertical wall.
8. two-part underframe of coach according to claim 7, it is characterised in that:Second truss-like undercarriage portion point includes second Upper framework and the revolver cage and right wheel cage being arranged on second at left and right sides of framework, the front and back end of framework is welded respectively on second The second front baffle and the second afterframe being vertically arranged are connected to, the second truss-like chassis part also includes second left side being vertically arranged Vertical frame and the second right vertical frame, the second left vertical frame, upper end and the frame welding on second of the second right vertical frame are connected, and allow bit space to distinguish It is formed between the second right vertical frame and right wheel cage and the first left vertical frame and revolver cage, framework, the second left vertical frame, on second Two right vertical frames, the second front baffle and the second afterframe surround notch trench structure directed downwardly.
9. car, including power assembly, it is characterised in that:Also include the two-part visitor as described in claim 1 ~ 8 any one Body frame.
CN201711189516.5A 2017-11-24 2017-11-24 Two-section type passenger car underframe and passenger car using same Active CN107719472B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108639163A (en) * 2018-04-17 2018-10-12 东风特汽(十堰)客车有限公司 A kind of forward type car and its luggage compartment
CN113173207A (en) * 2021-04-21 2021-07-27 郑州宇通重工有限公司 Wheel-foot composite equipment and vehicle body thereof

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CN203920908U (en) * 2014-05-30 2014-11-05 驻马店大力天骏专用汽车制造有限公司 Light-duty trailer chassis side rail
CN204020994U (en) * 2014-07-30 2014-12-17 郑州宇通客车股份有限公司 A kind of chassis frame and use the vehicle of this chassis frame
CN204368293U (en) * 2014-12-09 2015-06-03 郑州宇通客车股份有限公司 Floor underframe for vehicle and use the pure electric coach of this floor underframe for vehicle
CN204688212U (en) * 2015-06-08 2015-10-07 成都雅骏新能源汽车科技股份有限公司 The pure electronic cargo vehicle frame of a kind of truss-like
CN205737703U (en) * 2016-06-29 2016-11-30 中国重汽集团济南动力有限公司 A kind of stagewise high strength frame formula structure frame
CN205819326U (en) * 2016-05-20 2016-12-21 三河市新宏昌专用车有限公司 A kind of Self-discharging vehicle sub car-frame crack resistence structure
CN106364561A (en) * 2016-10-12 2017-02-01 吉林大学 Vehicle body structure of bearing type highway passenger vehicle with biasing narrow keel, and left-right side rigidity matching method of vehicle body structure
CN107323529A (en) * 2017-08-18 2017-11-07 湖北神河汽车改装(集团)有限公司 Self-unloading semi vehicle frame main beam stress release pore structure
CN207773240U (en) * 2017-11-24 2018-08-28 河南少林客车股份有限公司 Two-part underframe of coach and the car for using the underframe of coach

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2402521Y (en) * 1999-11-26 2000-10-25 常州长江客车集团有限公司 Bus chassis
CN2625502Y (en) * 2003-07-20 2004-07-14 马大鸣 Front suspension type sunshade for parking lot
CN102410920A (en) * 2011-08-05 2012-04-11 上海交通大学 Vortex induced vibration rotation testing device of inclined vertical pipe with movable top part under step shear flow
CN203007333U (en) * 2013-01-14 2013-06-19 洛阳市海龙精铸有限公司 Heat treatment system
CN203920908U (en) * 2014-05-30 2014-11-05 驻马店大力天骏专用汽车制造有限公司 Light-duty trailer chassis side rail
CN204020994U (en) * 2014-07-30 2014-12-17 郑州宇通客车股份有限公司 A kind of chassis frame and use the vehicle of this chassis frame
CN204368293U (en) * 2014-12-09 2015-06-03 郑州宇通客车股份有限公司 Floor underframe for vehicle and use the pure electric coach of this floor underframe for vehicle
CN204688212U (en) * 2015-06-08 2015-10-07 成都雅骏新能源汽车科技股份有限公司 The pure electronic cargo vehicle frame of a kind of truss-like
CN205819326U (en) * 2016-05-20 2016-12-21 三河市新宏昌专用车有限公司 A kind of Self-discharging vehicle sub car-frame crack resistence structure
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CN106364561A (en) * 2016-10-12 2017-02-01 吉林大学 Vehicle body structure of bearing type highway passenger vehicle with biasing narrow keel, and left-right side rigidity matching method of vehicle body structure
CN107323529A (en) * 2017-08-18 2017-11-07 湖北神河汽车改装(集团)有限公司 Self-unloading semi vehicle frame main beam stress release pore structure
CN207773240U (en) * 2017-11-24 2018-08-28 河南少林客车股份有限公司 Two-part underframe of coach and the car for using the underframe of coach

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108639163A (en) * 2018-04-17 2018-10-12 东风特汽(十堰)客车有限公司 A kind of forward type car and its luggage compartment
CN113173207A (en) * 2021-04-21 2021-07-27 郑州宇通重工有限公司 Wheel-foot composite equipment and vehicle body thereof
CN113173207B (en) * 2021-04-21 2022-12-23 郑州宇通重工有限公司 Wheel-foot composite equipment and vehicle body thereof

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