CN205059735U - Partly bear middle part purlin rack structure on passenger train chassis - Google Patents
Partly bear middle part purlin rack structure on passenger train chassis Download PDFInfo
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- CN205059735U CN205059735U CN201520744672.3U CN201520744672U CN205059735U CN 205059735 U CN205059735 U CN 205059735U CN 201520744672 U CN201520744672 U CN 201520744672U CN 205059735 U CN205059735 U CN 205059735U
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- Prior art keywords
- cross beam
- rectangular tube
- diagonal brace
- pillar
- truss structure
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Abstract
The utility model relates to a partly bear middle part purlin rack structure on passenger train chassis, rear column on the preceding rectangular pipe that sets up including the interval and back rectangular pipe, the cross member that sets up in the front rectangular pipe and back rectangular pipe below, the front column on being connected to the cross member with the rear end of preceding rectangular pipe, front end that will the back rectangular pipe are connected to the cross member and setting sink to being connected the crossbeam between the upper portion in middle and upper of front column and rear column. The utility model discloses can solve exist among the prior art not enough, can effectively reduce every grade of riser height, improve the travelling comfort and the convenience of getting on or off the bus.
Description
Technical field
The utility model relates to Bus Technology field, is specifically related to a kind of middle part truss structure of half loading coach chassis.
Background technology
Passenger-carrying chassis comprises overall fall crossbeam type chassis, truss-like chassis and three kinds, half bearing-type chassis, and wherein half bearing-type chassis is the compound type underframe of front and back fall crossbeam type intermediate truss formula.At present, half bearing-type chassis is subject to the favor of increasing passenger vehicle producer day by day because of advantages such as it are with low cost, remodeling convenient, production assembling is simple.
In the middle part of the chassis of half loading coach, truss structure connects front and back fall crossbeam type structure, and it mainly ensures the Joint strenght of integrated bottom frame by truss structure top, middle part large rectangle pipe.Based on the structure function that truss structure top, middle part large rectangle pipe this kind is special, it is opened grade size and must keep always with grade size of opening of front and back crossbeam, generally at about 860mm (rear crossbeam open grade size by the restriction of front and rear suspension, can not be little again).Bus body lower width is generally at about 2260mm, therefore for arranging that the width of marking time is at about 700mm, and standard specifies that every grade of projection width of marking time need mark time at more than 200mm, Gu Zhongmen can only be divided at most three grades and mark time.But on large-scale half loading coach of part, it is in order to ensure passenger vehicle capacity, it is higher that its underframe all does, sunk type has been made in middle aisle by a lot of passenger vehicle, but wherein still there is more than 900mm even more than a meter in aisle from the height of underframe lower plane, if be divided into three grades like this to mark time, every grade of height of marking time all is greater than 300mm(standard GB13094 and specifies that every grade of height of marking time can not more than 350mm), upper and lower convenience is so highly caused to be deteriorated, particularly for old man and child.
Utility model content
The purpose of this utility model is the middle part truss structure providing a kind of half loading coach chassis, and this structure can solve the deficiencies in the prior art, can effectively reduce every grade of step height, improves the traveling comfort and convenience of getting on or off the bus.
For achieving the above object, the utility model have employed following technical scheme:
The middle part truss structure on half loading coach chassis, comprises spaced front rectangular tube and rear rectangular tube, is arranged on bottom cross beam below front rectangular tube and rear rectangular tube, the A-pillar be connected to the rear end of front rectangular tube on bottom cross beam, the sinking connecting cross beam that the front end of rear rectangular tube is connected to the rear column on bottom cross beam and is arranged between A-pillar middle and upper part and rear column middle and upper part.
Further, in the middle part of this, truss structure also comprises step plate; Described step plate comprises the one-level step plate, secondary step plate, three grades of step plates and the level Four step plate that are connected successively; Described level Four step plate is overlapped on the top of sinking connecting cross beam.Reinforcement is equipped with between the horizontal surface of described secondary step plate and three grades of step plates and vertical plane.
Further, strengthen diagonal brace before being provided with first between described front rectangular tube and A-pillar, after being provided with first between rear rectangular tube and rear column, strengthen diagonal brace; Strengthen diagonal brace before described first, its upper end is connected to the rear end of front rectangular tube, and its lower end is connected on the junction of A-pillar and sinking connecting cross beam; Strengthen diagonal brace after described first, its upper end is connected to the front end of rear rectangular tube, and its lower end is connected on the junction of rear column and sinking connecting cross beam.
Further, diagonal brace is strengthened after strengthening diagonal brace and second before being provided with arranged in a crossed manner second between described sinking connecting cross beam and bottom cross beam; Strengthen diagonal brace before described second, its upper end is connected on the junction of A-pillar and sinking connecting cross beam, and its lower end is connected to the middle part of sinking connecting cross beam; Strengthen diagonal brace after described second, its upper end is connected on the junction of rear column and sinking connecting cross beam, and its lower end is connected to the middle part of sinking connecting cross beam.
Further, the below of the bottom cross beam between described A-pillar and rear column is provided with deep beam; The rear and front end of described deep beam is connected to the bottom of bottom cross beam respectively by attaching parts.
Further, be also provided with some between described front rectangular tube and bottom cross beam and strengthen A-pillar; Reinforcement rear column is also provided with between described rear rectangular tube and bottom cross beam.
Further, the front and back end of described deep beam is respectively equipped with diagonal plane; Described attaching parts comprises the first connected connecting portion of bending and the second connecting portion, and the bottom of the first connecting portion and bottom cross beam closely cooperates, and the second connecting portion and diagonal plane closely cooperate.
Further, the angle of described first connecting portion and the second connecting portion is obtuse angle.
From above technical scheme, sunk type setting is carried out in the utility model place's of marking time disconnection in the middle of the upper end of middle part truss structure, make to mark time and can extend in car further, thus will mark time when ensureing that every grade of tread run is greater than 200mm and be divided into driver and mark time, effectively reduce every grade of height of marking time, improve the traveling comfort and convenience of getting on or off the bus.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of step plate;
Fig. 4 is the structural representation of attaching parts;
Fig. 5 is the schematic diagram that the utility model is assemblied on passenger vehicle.
Wherein:
1, front fall crossbeam type structure, 2, middle part truss structure, 200, attaching parts, 201, first connecting portion, 202, second connecting portion, 203, front rectangular tube, 204, rear rectangular tube, 205, sinking connecting cross beam, 206, bottom cross beam, 207, diagonal brace is strengthened before first, 208, diagonal brace is strengthened after first, 209, diagonal brace is strengthened before second, 210, diagonal brace is strengthened after second, 211, deep beam, 212, A-pillar, 213, rear column, 214, strengthen A-pillar, 215, strengthen rear column, 3, rear fall crossbeam type structure, 4, step plate, 41, one-level step plate, 42, secondary step plate, 43, three grades of step plates, 44, level Four step plate, 45, reinforcement.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
The assembling schematic diagram of middle part described in the utility model truss structure as shown in Figure 1, the half loading coach chassis represented in the figure.The leading portion on half loading coach chassis is fall crossbeam type structure (1 in Fig. 1), and stage casing is middle part truss structure 2, and back segment is fall crossbeam type structure (3 in Fig. 1).The rectangular tube of truss structure upper end, described middle part disconnects at Zhong Menchu, and adopt sinking connecting cross beam 205 to carry out sunk type connection at this gap, before strengthening diagonal brace 208, second after adopting the first front reinforcement diagonal brace 207, first, reinforcement diagonal brace 209 and the second rear diagonal brace of strengthening carry out structural strength reinforcement at this gap.Thus make coach middle door enough horizontal spaces of marking time be arranged to level Four and mark time, effectively reduce every grade of step height, improve the traveling comfort and convenience of getting on or off the bus.
The middle part truss structure on a kind of half loading coach chassis as Figure 2-Figure 5, comprises spaced front rectangular tube 203 and rear rectangular tube 204, is set in parallel in bottom cross beam 206 below front rectangular tube 203 and rear rectangular tube 204, the A-pillar 212 be connected to the rear end of front rectangular tube 203 on bottom cross beam 206, sinking connecting cross beam 205 that the front end of rear rectangular tube 204 is connected to the rear column 213 on bottom cross beam 206 and is vertically set between A-pillar 212 middle and upper part and rear column 213 middle and upper part.
Further, in the middle part of this, truss structure also comprises step plate 4, and what the width of step plate 4 equaled A-pillar and rear column opens a grade size, thus step plate just in time can be stuck between A-pillar and rear column.Described step plate 4 comprises the one-level step plate 41, secondary step plate 42, three grades of step plates 43 and the level Four step plate 44 that are connected successively.Described level Four step plate 44 is overlapped on the top (bottom surface of described level Four step plate 44 and the end face of sinking connecting cross beam 205 are positioned at sustained height) of sinking connecting cross beam 205, sinking connecting cross beam supports level Four step plate, so just without the need to arranging reinforcement at level Four step plate place, save productive costs.Reinforcement 45 is equipped with between the horizontal surface of described secondary step plate 42 and three grades of step plates 43 and vertical plane.
Further, before being provided with first between described front rectangular tube 203 and A-pillar 212, strengthen diagonal brace 207, after being provided with first between rear rectangular tube 204 and rear column 213, strengthen diagonal brace 208; Strengthen diagonal brace 207 before described first, its upper end is connected to the rear end of front rectangular tube 203, and its lower end is connected to A-pillar 212 with on the junction of sinking connecting cross beam 205; Strengthen diagonal brace 208 after described first, its upper end is connected to the front end of rear rectangular tube 204, and its lower end is connected to rear column 213 with on the junction of sinking connecting cross beam 205.It is stressed that the utility model carries out entirety by front rectangular tube, rear rectangular tube and bottom cross beam, and by A-pillar, rear column, reinforcement A-pillar, strengthen rear column, strengthen diagonal brace, first before first after strengthen diagonal brace, second before strengthen diagonal brace and second after strengthen diagonal brace and form complete, a coherent power ring structure, enable to transmit before and after capable stream to link up, and wherein comprise multiple triangular structure, the structural stability of truss structure in the middle part of this can be strengthened.
Further, be provided with the second front diagonal brace 207 and second of strengthening arranged in a crossed manner between described sinking connecting cross beam 205 and bottom cross beam 206 and strengthen diagonal brace 208 afterwards.Strengthen diagonal brace 207 before described second, its upper end is connected to A-pillar 212 with on the junction of sinking connecting cross beam 206, and its lower end is connected to the middle part of sinking connecting cross beam 206.Strengthen diagonal brace 208 after described second, its upper end is connected to rear column 213 with on the junction of sinking connecting cross beam 205, and its lower end is connected to the middle part of sinking connecting cross beam 205.
Further, the below of the bottom cross beam 206 between described A-pillar 212 and rear column 213 is provided with deep beam 211; The rear and front end of described deep beam 211 is connected to the bottom of bottom cross beam 206 respectively by attaching parts 200.The length of described deep beam 211 is greater than the length of sinking connecting cross beam 205.The front and back end of described deep beam 211 is respectively equipped with diagonal plane; Described attaching parts 200 comprises the first connecting portion 201 and the second connecting portion 202 that bending is connected, and the first connecting portion 201 closely cooperates with the bottom of bottom cross beam 206, and the second connecting portion 202 closely cooperates with diagonal plane.The angle of described first connecting portion 201 and the second connecting portion 202 is obtuse angle.By arranging deep beam below bottom cross beam, and making the length of deep beam be greater than the length of sinking connecting cross beam, the structural strength of middle part truss structure at middle door pedal place can be improved.By the rear and front end at deep beam, diagonal plane is set respectively, the two ends being connected to deep beam because of this deep beam and bottom cross beam can be avoided to undergo mutation form stress concentrating and making the continuous damage between deep beam and bottom cross beam.By adopting attaching parts to be fixedly connected on bottom cross beam by the two ends of deep beam, the Joint strenght of deep beam and bottom cross beam can be improved.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (8)
1. the middle part truss structure on half loading coach chassis, is characterized in that: comprise spaced front rectangular tube and rear rectangular tube, be arranged on bottom cross beam below front rectangular tube and rear rectangular tube, the A-pillar be connected to the rear end of front rectangular tube on bottom cross beam, the sinking connecting cross beam that the front end of rear rectangular tube is connected to the rear column on bottom cross beam and is arranged between A-pillar middle and upper part and rear column middle and upper part.
2. the middle part truss structure on a kind of half loading coach chassis according to claim 1, is characterized in that: also comprise step plate; Described step plate comprises the one-level step plate, secondary step plate, three grades of step plates and the level Four step plate that are connected successively; Described level Four step plate is overlapped on the top of sinking connecting cross beam;
Reinforcement is equipped with between the horizontal surface of described secondary step plate and three grades of step plates and vertical plane.
3. the middle part truss structure on a kind of half loading coach chassis according to claim 1, is characterized in that: strengthen diagonal brace before being provided with first between described front rectangular tube and A-pillar, strengthen diagonal brace after being provided with first between rear rectangular tube and rear column; Strengthen diagonal brace before described first, its upper end is connected to the rear end of front rectangular tube, and its lower end is connected on the junction of A-pillar and sinking connecting cross beam; Strengthen diagonal brace after described first, its upper end is connected to the front end of rear rectangular tube, and its lower end is connected on the junction of rear column and sinking connecting cross beam.
4. the middle part truss structure on a kind of half loading coach chassis according to claim 1, is characterized in that: strengthen diagonal brace after strengthening diagonal brace and second before being provided with arranged in a crossed manner second between described sinking connecting cross beam and bottom cross beam; Strengthen diagonal brace before described second, its upper end is connected on the junction of A-pillar and sinking connecting cross beam, and its lower end is connected to the middle part of sinking connecting cross beam; Strengthen diagonal brace after described second, its upper end is connected on the junction of rear column and sinking connecting cross beam, and its lower end is connected to the middle part of sinking connecting cross beam.
5. the middle part truss structure on a kind of half loading coach chassis according to claim 1, is characterized in that: the below of the bottom cross beam between described A-pillar and rear column is provided with deep beam; The rear and front end of described deep beam is connected to the bottom of bottom cross beam respectively by attaching parts.
6. the middle part truss structure on a kind of half loading coach chassis according to claim 1, is characterized in that: be also provided with some between described front rectangular tube and bottom cross beam and strengthen A-pillar; Reinforcement rear column is also provided with between described rear rectangular tube and bottom cross beam.
7. the middle part truss structure on a kind of half loading coach chassis according to claim 5, is characterized in that: the front and back end of described deep beam is respectively equipped with diagonal plane; Described attaching parts comprises the first connected connecting portion of bending and the second connecting portion, and the bottom of the first connecting portion and bottom cross beam closely cooperates, and the second connecting portion and diagonal plane closely cooperate.
8. the middle part truss structure on a kind of half loading coach chassis according to claim 7, is characterized in that: the angle of described first connecting portion and the second connecting portion is obtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520744672.3U CN205059735U (en) | 2015-09-24 | 2015-09-24 | Partly bear middle part purlin rack structure on passenger train chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520744672.3U CN205059735U (en) | 2015-09-24 | 2015-09-24 | Partly bear middle part purlin rack structure on passenger train chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205059735U true CN205059735U (en) | 2016-03-02 |
Family
ID=55386325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520744672.3U Expired - Fee Related CN205059735U (en) | 2015-09-24 | 2015-09-24 | Partly bear middle part purlin rack structure on passenger train chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205059735U (en) |
-
2015
- 2015-09-24 CN CN201520744672.3U patent/CN205059735U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20190924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |