CN101559788A - Buffer-induced independent combined-type roll-over protection structure - Google Patents

Buffer-induced independent combined-type roll-over protection structure Download PDF

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Publication number
CN101559788A
CN101559788A CNA2009100670337A CN200910067033A CN101559788A CN 101559788 A CN101559788 A CN 101559788A CN A2009100670337 A CNA2009100670337 A CN A2009100670337A CN 200910067033 A CN200910067033 A CN 200910067033A CN 101559788 A CN101559788 A CN 101559788A
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CN
China
Prior art keywords
buffer
induced
main
column
steel pipe
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Application number
CNA2009100670337A
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Chinese (zh)
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CN101559788B (en
Inventor
于向军
王继新
王国强
胡季
唐小波
杨永海
Original Assignee
吉林大学
昆明学院
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Application filed by 吉林大学, 昆明学院 filed Critical 吉林大学
Priority to CN 200910067033 priority Critical patent/CN101559788B/en
Publication of CN101559788A publication Critical patent/CN101559788A/en
Application granted granted Critical
Publication of CN101559788B publication Critical patent/CN101559788B/en

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Abstract

The invention discloses a buffer-induced independent combined-type roll-over protection structure, which consists of a main-body bearing structure and a buffer-induced structure, wherein the main-body bearing structure is formed by connecting four upright columns with an upper beam and a lower beam through flanges; the main-body bearing structure is in a curved-edge trapezoidal shape in the left-right, front-back and upper-lower surfaces; the buffer-induced structure is in a trapezoidal shape; the buffer-induced structure is in the curved-edge trapezoidal shape in the left-right, front-back and upper surfaces; the upright column of the buffer-induced structure and the upright column of the main-body bearing structure are connected with bolts though transition fit; the lower end of the upright column of the buffer-induced structure is welded with a curved pipe; the curved pipe is inserted into the upright column of the main-body bearing structure and is fixed through the bolt throughout the two; and the main-body bearing structure and the buffer-induced structure are arranged outside a cab and are connected with a vehicle frame through the flanges. The protection structure has the advantages of taking the flanges for connection to ensure convenient replacement and maintenance, short maintenance cycle and lower maintenance cost, along with strong capability of resisting deformation and absorbing the kinetic energy of roll-over.

Description

Buffer-induced independent combined-type roll-over protection structure

Technical field

The present invention relates to a kind of Roll-Over Protective Structure, particularly a kind of buffer-induced independent combined-type roll-over protection structure.

Background technology

When existing engineering truck with Roll-Over Protective Structure took place to overturn, operator's compartment very easily deformed, and causes the space of operator's compartment to diminish greatly, makes navigating mate not have living space.For this reason, the dealer has designed Roll-Over Protective Structure, the existing safe driving cell-type Roll-Over Protective Structure design and manufacture cost height that is made of one with operator's compartment, and on full size vehicle, can't realize; In addition, the external Roll-Over Protective Structure generally is fixing non-dismountable formula, and maintenance and the cost changed and have contradiction between the load-carrying capacity of existing Roll-Over Protective Structure and its energy absorbing than higher after damage, the load-carrying capacity that is Roll-Over Protective Structure is strong, and then energy absorbing is poor; If the Roll-Over Protective Structure energy absorbing is strong, then load-carrying capacity is low.

Summary of the invention

The objective of the invention is for the load-carrying capacity that solves Roll-Over Protective Structure and the contradiction between its energy absorption capacity; impulsive force peak value when reducing the Roll-Over Protective Structure colliding surface, prolongation Roll-Over Protective Structure and ground-surface in-service time; the existing Roll-Over Protective Structure of solution keeps in repair after damage and replacement cost is inscribed than problem of higher, and a kind of buffer-induced independent combined-type roll-over protection structure that overcomes above-mentioned shortcoming is provided.

The present invention is made up of main body carrying structure and buffer-induced structure, the main body carrying structure is to be connected by flange with lower and upper cross-member by four root posts to form, face, front-back and top and bottom all are bent limit trapezoidal shape about the main body carrying structure, four root posts are the equal strength column, its axis is a curve, and the member in the main body carrying structure is welded after adopting high-strength cast steel spare or sheet bending moulding; Face about buffer-induced structure, front-back and the top bent limit trapezoidal shape that all is, its left and right sides crossbeam, front cross rail and two rear columns are to be one by a round steel pipe brake forming, the intersection that two A-pillars are welded on left and right sides crossbeam and front cross rail respectively forms the framework of buffer-induced structure, several longitudinal bending moulding round steel pipe are in the same place with several horizontal round steel pipe weld crosswises in the ladder-shaped frame, and severally constituted buffer-induced structure with the framework weld together respectively to the outer end of round steel pipe and several longitudinal bending moulding round steel pipe in length and breadth, the column of the column of buffer-induced structure and main body carrying structure adopts transition fit and Bolt Connection, the lower end of the column of buffer-induced structure is welded with one section curved tube, the column dead in line of the axis of this curved tube and main body carrying structure, its external diameter is identical with the nominal dimension of the column upper end endoporus of main body carrying structure, this section curved tube is inserted in the column of main body carrying structure, and by the bolt through both; Main body carrying structure and buffer-induced structure are installed in outside the operator's compartment, connect with vehicle frame by flange.

Working process of the present invention and principle:

Engineering truck of the present invention is installed on domatic in the overturning process, one of drift angle at first lands after two of Roll-Over Protective Structure (ROPS), arches upward in buffer-induced structure rear portion, and the distortion that allows to produce increases, and can absorb more overturning kinetic energy; The main body carrying structure has big stiffness characteristics; can bear huge overturning impact load; guaranteed the integraty of cab structure; driver's living space can not be subjected to the intrusion of surrounding structure spare because of overturning; efficiently solve the contradiction between common Roll-Over Protective Structure (ROPS) load-carrying capacity and its energy absorbing, thus better protection driver's life security.

The invention has the beneficial effects as follows:

1, face, front-back and top and bottom all are bent limit trapezoidal shape about the main body carrying structure of Roll-Over Protective Structure, have improved the ability of Roll-Over Protective Structure resistance to deformation; Four root posts are designed to constant strength beam, and its axis is curve, the deadweight of Roll-Over Protective Structure is lightened, and the outward appearance visuality are good.

2, Roll-Over Protective Structure and collision on the ground are instantaneous; because the column abrupt change of cross-section of buffer-induced structure and main body carrying structure junction; produce stress concentration; buffer-induced structure at first deforms; obviously reduced the impulsive force peak value, prolonged Roll-Over Protective Structure and ground-surface in-service time, realized that plastic hinge produces the position and produces control constantly; can form plasticity mechanism thereupon, realize improving the ability that absorbs overturning kinetic energy by METHOD FOR LARGE DEFORMATION ELASTOPLASTIC.

3, in the engineering truck roll-over accident, minimum if the main body carrying structure of Roll-Over Protective Structure is not out of shape or is out of shape, only need to change buffer-induced structure; If permanent plastic deformation has also taken place in the local member (crossbeam, longeron, column) of the main body carrying structure of Roll-Over Protective Structure in the overturning process, can change local member fast by the butt flange between member, avoided the integral replacing Roll-Over Protective Structure, significantly reduce the maintenance cost of Roll-over Protective Structures for Engineering Vehicles, shortened maintenance cycle; If plastic deformation has taken place in the main body carrying structure integral body of Roll-Over Protective Structure in the serious roll-over accident; can change Roll-Over Protective Structure by four flanges that connect to ground of bottom easily; maintenance cost than safe driving cell-type Roll-Over Protective Structure is much lower, and maintenance cycle is short.

Description of drawings

Fig. 1 is the perspective view of the embodiment of the invention.

Fig. 2 is the front view of the embodiment of the invention.

Fig. 3 is the birds-eye view of the embodiment of the invention.

Fig. 4 is the right elevation of the embodiment of the invention.

Fig. 5 is the perspective view of the buffer-induced structure of the embodiment of the invention.

Fig. 6 is the front view of the buffer-induced structure of the embodiment of the invention.

Fig. 7 is the right elevation of the buffer-induced structure of the embodiment of the invention.

Fig. 8 is the birds-eye view of the buffer-induced structure of the embodiment of the invention.

The specific embodiment

See also Fig. 1 to shown in Figure 8, present embodiment is made up of main body carrying structure 1 and buffer-induced structure 2, main body carrying structure 1 is to be connected by flange 14 by four root posts 11 and upper and lower crossbeam 12,13 to form, face, front-back and top and bottom all are bent limit trapezoidal shape about main body carrying structure 1, four root posts 11 are the equal strength column, its axis is a curve, and the member in the main body carrying structure 1 is welded after adopting high-strength cast steel spare or sheet bending moulding; Face about buffer-induced structure 2, front-back and the top bent limit trapezoidal shape that all is, its left and right sides crossbeam 21,27, front cross rail 28 and two rear columns 22 are to be one by a round steel pipe brake forming, two A-pillars 25 are welded on left and right sides crossbeam 21 respectively, 27 form the framework of buffer-induced structure with the intersection of front cross rail 28, several longitudinal bending moulding round steel pipe 24 are in the same place with several horizontal round steel pipe 23 weld crosswises in the ladder-shaped frame, and severally constituted buffer-induced structure with the framework weld together respectively to the outer end of round steel pipe 23 and several longitudinal bending moulding round steel pipe 24 in length and breadth, the column 22 of buffer-induced structure 2,25 adopt transition fit to connect with bolt 3 with the column 11 of main body carrying structure 1,22 of the column of buffer-induced structure 2,25 lower ends are welded with one section curved tube 29, column 11 deads in line of the axis of this curved tube 29 and main body carrying structure 1, its external diameter is identical with the nominal dimension of the column 11 upper end endoporus of main body carrying structure 1, this section curved tube 29 is inserted in the column 11 of main body carrying structure 1, and by through boring a hole 26 between the two, 111 bolt 3 is fixing; Main body carrying structure 1 and buffer-induced structure 2 are installed in outside the operator's compartment, connect with vehicle frame by flange 4.

Claims (1)

1, a kind of buffer-induced independent combined-type roll-over protection structure, it is characterized in that: form by main body carrying structure and buffer-induced structure, the main body carrying structure is to be connected by flange with lower and upper cross-member by four root posts to form, face, front-back and top and bottom all are bent limit trapezoidal shape about the main body carrying structure, four root posts are the equal strength column, its axis is a curve, and the member in the main body carrying structure is welded after adopting high-strength cast steel spare or sheet bending moulding; Face about buffer-induced structure, front-back and the top bent limit trapezoidal shape that all is, its left and right sides crossbeam, front cross rail and two rear columns are to be one by a round steel pipe brake forming, the intersection that two A-pillars are welded on left and right sides crossbeam and front cross rail respectively forms the framework of buffer-induced structure, several longitudinal bending moulding round steel pipe are in the same place with several horizontal round steel pipe weld crosswises in the ladder-shaped frame, and severally constituted buffer-induced structure with the framework weld together respectively to the outer end of round steel pipe and several longitudinal bending moulding round steel pipe in length and breadth, the column of the column of buffer-induced structure and main body carrying structure adopts transition fit and Bolt Connection, the lower end of the column of buffer-induced structure is welded with one section curved tube, the column dead in line of the axis of this curved tube and main body carrying structure, its external diameter is identical with the nominal dimension of the column upper end endoporus of main body carrying structure, this section curved tube is inserted in the column of main body carrying structure, and by the bolt through both; Main body carrying structure and buffer-induced structure are installed in outside the operator's compartment, connect with vehicle frame by flange.
CN 200910067033 2009-06-02 2009-06-02 Buffer-induced independent combined-type roll-over protection structure CN101559788B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910067033 CN101559788B (en) 2009-06-02 2009-06-02 Buffer-induced independent combined-type roll-over protection structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910067033 CN101559788B (en) 2009-06-02 2009-06-02 Buffer-induced independent combined-type roll-over protection structure

Publications (2)

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CN101559788A true CN101559788A (en) 2009-10-21
CN101559788B CN101559788B (en) 2010-10-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899851A (en) * 2010-08-17 2010-12-01 广西柳工机械股份有限公司 Protective structure for preventing ROPS (Roll Over Protection Structure) separating from vehicle frame
CN104401284A (en) * 2014-11-14 2015-03-11 内蒙古北方重型汽车股份有限公司 Cab type rollover protection structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572155A (en) * 1975-12-12 1980-07-23 Massey Ferguson Services Nv Roll-over protective structure for vehicles and method of construction therefor
US6325449B1 (en) * 2000-06-08 2001-12-04 Deere & Company ROPS structure for work vehicle
CN100497070C (en) * 2005-12-07 2009-06-10 广西柳工机械股份有限公司 Machineshop truck driver's cab with reinforced turnover protection device
CN201169792Y (en) * 2007-12-29 2008-12-24 厦门工程机械股份有限公司 Construction machinery driver's cab framework
CN201405941Y (en) * 2009-06-03 2010-02-17 吉林大学 Induction buffer independent combined-type turnover protection structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899851A (en) * 2010-08-17 2010-12-01 广西柳工机械股份有限公司 Protective structure for preventing ROPS (Roll Over Protection Structure) separating from vehicle frame
CN101899851B (en) * 2010-08-17 2012-08-22 广西柳工机械股份有限公司 Protective structure for preventing ROPS (Roll Over Protection Structure) separating from vehicle frame
CN104401284A (en) * 2014-11-14 2015-03-11 内蒙古北方重型汽车股份有限公司 Cab type rollover protection structure
CN104401284B (en) * 2014-11-14 2017-01-25 内蒙古北方重型汽车股份有限公司 Cab type rollover protection structure

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