CN212796426U

CN212796426U - Structure based on 12 meters bear formula city passenger train car trailer hook assembly entirely

Info

Publication number: CN212796426U
Application number: CN202021788225.5U
Authority: CN
Inventors: 朱前兵; 边东生; 王凯; 卢明军
Original assignee: Chery and Wanda Guizhou Bus Co Ltd
Current assignee: Chery and Wanda Guizhou Bus Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-03-26
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a structure based on 12 meters bear formula city passenger train car trailer hook assemblies entirely, include: tow hook, locking round pin axle, locating pin axle, tow hook axle sleeve and U type reinforcement, U type reinforcement is front end, rear end and top open-ended half box body structure, lies in front end and rear end in the U type reinforcement and is equipped with preceding reinforcing plate and back reinforcing plate respectively, the length of preceding reinforcing plate and back reinforcing plate and the interior width matching of U type reinforcing plate to the up end of preceding reinforcing plate and back reinforcing plate and the terminal surface parallel and level of U type reinforcement. The utility model discloses a change U type reinforcing plate into half box body structure, increase strength to reinforcing plate and back reinforcing plate before U type reinforcing plate front and back end sets up respectively, further increase the structural stability and the intensity of U type enhancement version, and the structure is more simplified, when guarantee function use up to standard, alleviate weight burden greatly, reduce material cost.

Description

Structure based on 12 meters bear formula city passenger train car trailer hook assembly entirely

Technical Field

The utility model belongs to the technical field of the city passenger train equipment, concretely relates to structure based on 12 meters bear formula city passenger train car trailer hook assemblies entirely.

Background

In recent years, pure electric city buses with full-bearing type vehicle body structures are more and more in various cities in China, and the good performance of the full-bearing type vehicle body structures is widely accepted; adopt full bearing structure, make the driving of passenger train have agility, stationarity, travelling comfort and security more, in addition its humanized configuration, low emission, environmental protection ization, passenger space advantage such as big, the theory that embodies "science and technology that modern society advocated leads, the people is the basis also has made the unique product advantage of full bearing passenger train, and the concrete performance is:

1. the whole body of the whole vehicle adopts a closed ring structure, the whole body participates in load, the upper part and the lower part of the body structure form a whole, and when the body bears the load, the shell of the whole body reaches a stable balance state;

2. the strength and the rigidity of the whole vehicle are increased, the vehicle body framework has enough strength due to severe running conditions of urban buses, such as serious overload and frequent starting and braking, so that numerous domestic bus manufacturers cannot solve the problem, the passenger door upright columns are cracked successively after the vehicle runs for one or two years, and the problem can be effectively avoided by the fully-loaded vehicle body structure;

3. the comfort is good, and the noise is low; because the full-bearing vehicle body is used, all the connecting parts of the vehicle body and the underframe are welded to form a whole, no relative movement exists, no noise is generated, and a plurality of noise sources are reduced compared with other vehicle bodies.

At present, a common structure of a 12-meter full-bearing type urban passenger car trailer hook assembly is shown in figure 1 and comprises a locking pin shaft, a trailer hook shaft sleeve and a U-shaped fixed reinforcing part; through stress analysis and structural type analysis of the trailer hook assembly in a vehicle body structure, a trailer hook shaft sleeve in the structure is made of 276 x 84 x 114 (length x width x height, unit: mm) steel parts, and a trailer hook is made of 400 x 80 (length x width x height, unit: mm) steel parts, so that the material volume and the weight are large, the design target of light weight of the whole vehicle is not met, and the purchase cost of the whole vehicle is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: based on the characteristics of the city bus with the full-bearing type vehicle body structure, the convenience and the light design target of the city bus with the full-bearing type vehicle body structure during maintenance and use are improved by adjusting the overall design structure and the combination type of the tow hook assembly.

The utility model adopts the technical proposal that: the utility model provides a structure based on 12 meters bear formula city passenger train car towing hook assemblies entirely, includes: tow hook, locking round pin axle, locating pin axle, tow hook axle sleeve and U type reinforcement, U type reinforcement is front end, rear end and top open-ended half box body structure, lies in front end and rear end in the U type reinforcement and is equipped with preceding reinforcing plate and back reinforcing plate respectively, the length of preceding reinforcing plate and back reinforcing plate and the interior width matching of U type reinforcing plate to the up end of preceding reinforcing plate and back reinforcing plate and the terminal surface parallel and level of U type reinforcement.

Through adopting above-mentioned technical scheme, U type reinforcing plate adopts half box body structure, and intensity increases to some extent to reinforcing plate and back reinforcing plate before U type reinforcing plate front and back end sets up respectively, the structural stability and the intensity of further increase U type reinforcing plate greatly increase the welding contact surface through the back reinforcing plate, make overall structure connect more firmly.

Furthermore, a plurality of mounting holes are uniformly formed in the rear reinforcing plate along the length direction and used for plug welding during welding.

Further, the number of the mounting holes is 3; and the welding strength is improved while the structural strength of the rear reinforcing plate is ensured.

Furthermore, the trailer hook shaft sleeve is of a cuboid structure, is arranged below the U-shaped reinforcing piece and is positioned on one side of the U-shaped reinforcing piece, the end face of the trailer hook shaft sleeve is flush with the end face of the U-shaped reinforcing piece, a circular through hole is formed in the center of the trailer hook shaft sleeve along the length direction, and the opening direction of the through hole faces forwards/backwards; the structure is optimized, and the structure weight is greatly reduced.

A positioning hole is radially formed in the side surface of the trailer hook shaft sleeve close to the front end, and a positioning shaft pin is connected with the trailer hook shaft sleeve through the positioning hole; a positioning shaft pin is arranged, so that the structure is simplified, and the weight is reduced.

Furthermore, the trailer hook is of a U-shaped structure, the bottom end of the trailer hook is fixedly connected with the front end of a trailer hook shaft sleeve, mounting holes are formed in the two ends of the trailer hook shaft sleeve and used for connecting a locking shaft pin, and the direction of the locking shaft pin is consistent with that of the positioning shaft pin.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a change U type reinforcing plate into half box body structure, increase intensity, and set up preceding reinforcing plate and back reinforcing plate respectively at U type reinforcing plate front and back end, further increase the structural stability and the intensity of U type reinforcing plate, through the atress analysis and the structural style analysis of towing hook assembly in the automobile body structure, the steel spare that the towing hook axle sleeve adopted 200X 70 (length X width X height, unit: mm) specification and the towing hook adopts 300X 80X 78 (length X width X height, unit: mm) specification to process and form, its material volume and weight all have great reduction, accord with the lightweight design objective of whole car, reduced the purchase cost of whole car;

2. the welding contact surface is greatly increased through the rear reinforcing plate, so that the whole structure is connected more firmly, 3 mounting holes are formed in the rear reinforcing plate and used for plug welding during welding, the welding quality is ensured, and meanwhile, the weight is reduced while the structural strength of the rear reinforcing plate is ensured;

3. the structure of the trailer hook shaft sleeve is simplified, the weight burden is greatly reduced and the material cost is reduced while the use of functions is ensured to reach the standard, the structural strength is higher due to the improvement of the U-shaped reinforcing piece, the front reinforcing plate and the rear reinforcing plate, the use reliability is improved, the number of the positioning holes on the trailer hook shaft sleeve is reduced to one, the use of a positioning shaft pin is reduced, and the effects of saving materials and reducing weight are achieved;

4. the utility model discloses compact structure, preparation are convenient, and original structure bulk strength improves greatly relatively, use the reliability high, have consequently guaranteed the various road conditions of the required reply of city passenger train when the break down with whole car can not lead to putting in order the condition emergence out of control of car because of road conditions relevant unfavorable factors such as abominable, tow hook assembly bulk strength and structural constraint at the in-process of trailer.

Drawings

FIG. 1 is a schematic overall structural view of a typical tow hook assembly;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a bottom view of the present invention;

FIG. 4 is a right side view of the present invention;

fig. 5 is a left side view of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings attached to the specification in order to facilitate better understanding by those skilled in the art.

Referring to fig. 1 to 5, a structure of a 12 m full-loading type passenger train coupler assembly for a passenger train includes: the trailer hook comprises a trailer hook 1, a locking pin shaft 2, a positioning shaft pin 3, a trailer hook shaft/4, a U-shaped reinforcing piece 5, a rear reinforcing plate 6 and a front reinforcing plate 7.

U type reinforcement 5 is front end, rear end and top open-ended half box structure, lies in that front end and rear end are equipped with preceding reinforcing plate 7 and back reinforcing plate 6 respectively in U type reinforcement 5 for increase U type reinforcement 5's structural stability and intensity, the length of preceding reinforcing plate 7 and back reinforcing plate 6 matches with U type reinforcing plate 5 internal width to preceding reinforcing plate 7 and back reinforcing plate 6's up end and U type reinforcement 5's terminal surface parallel and level. Evenly set up 3 mounting holes along length direction on the back reinforcing plate 6 for plug welding when welding, both guaranteed 6 structural strength of back reinforcing plate, improve welding quality again.

The trailer hook shaft sleeve 4 is of a cuboid structure, a circular through hole is formed in the center of the trailer hook shaft sleeve along the length direction, and specifically, the trailer hook shaft sleeve 4 is made of steel parts of 200 x 70 (length x width x height, unit: mm) specifications, so that the material consumption and the structural quality are greatly reduced; the tow hook shaft sleeve 4 is arranged below the U-shaped reinforcing part 5, the opening direction of the through hole faces forwards/backwards, the tow hook shaft sleeve 4 is positioned on one side of the U-shaped reinforcing part 5, and the end face of the tow hook shaft sleeve is flush with the end face of the U-shaped reinforcing part 5.

Furthermore, a positioning hole is radially formed in the position, close to the front end, of the side face of the trailer hook shaft sleeve 4, and the positioning shaft pin 3 is connected with the trailer hook shaft sleeve 4 through the positioning hole.

The trailer hook 1 is of a U-shaped structure and is processed by steel parts of the specification of 300 multiplied by 80 multiplied by 78 (length multiplied by width multiplied by height, unit: mm), and the bottom end of the trailer hook is fixedly connected with the front end of a trailer hook shaft sleeve 4; mounting holes are formed in two ends of the trailer hook 1 and used for being connected with a locking shaft pin 2, and the direction of the locking shaft pin 2 is consistent with that of the positioning shaft pin 3.

The trailer hook shaft sleeve 4, the U-shaped reinforcing piece 5, the rear reinforcing plate 6 and the front reinforcing plate 7 in the novel structure are welded together according to the specified size position by adopting carbon dioxide arc welding. This structure is through reinforcing plate 7 and back reinforcing plate 6 before 5 front ends of U type reinforcing plate and rear end set up, overall structure's steadiness and intensity have further been improved, back reinforcing plate 6 has both increased the welded connection area, set up the mounting hole again and be used for the plug welding when welding, improve welding quality, synthesize the intensity and the practical reliability that increase the coupling assembly structure, various road conditions of required reply of urban bus when the breakdown have been guaranteed, and whole car can not be because of the road conditions is abominable at the in-process of trailer, coupling assembly bulk strength and structural constraint etc. relevant adverse factor lead to whole car condition emergence out of control, and greatly improved the convenience of full formula body structure urban bus when maintaining the use and lightweight design objective.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a structure based on 12 meters bear formula city passenger train car towing hook assemblies entirely, includes: tow hook (1), locking round pin axle (2), locating pin axle (3), tow hook axle sleeve (4) and U type reinforcement (5), its characterized in that: u type reinforcement (5) are front end, rear end and top open-ended half box structure, lie in front end and rear end in U type reinforcement (5) and are equipped with preceding reinforcing plate (7) and back reinforcing plate (6) respectively, the length of preceding reinforcing plate (7) and back reinforcing plate (6) matches with the interior width of U type reinforcement (5) to the up end of preceding reinforcing plate (7) and back reinforcing plate (6) and the terminal surface parallel and level of U type reinforcement (5).

2. The structure of the 12-meter full-bearing type urban passenger train trailer hook assembly based on the claim 1, characterized in that: and a plurality of mounting holes are uniformly formed in the rear reinforcing plate (6) along the length direction.

3. The structure of the 12-meter full-bearing type urban passenger train trailer hook assembly based on the claim 2 is characterized in that: the number of the mounting holes is 3.

4. The structure of the 12-meter full-bearing type urban passenger train trailer hook assembly based on the claim 1, characterized in that: tow hook axle sleeve (4) are the cuboid structure, install in U type reinforcement (5) below to be located one side of U type reinforcement (5), terminal surface and U type reinforcement (5) terminal surface parallel and level, round through-hole is seted up along length direction to tow hook axle sleeve (4) central authorities, through-hole opening direction is towards the front/back.

5. The structure of the 12-meter full-bearing type urban passenger train trailer hook assembly based on the claim 1, characterized in that: the side surface of the trailer hook shaft sleeve (4) close to the front end is radially provided with a positioning hole, and the positioning shaft pin (3) is connected with the trailer hook shaft sleeve (4) through the positioning hole.

6. The structure of the 12-meter full-bearing type urban passenger train trailer hook assembly based on the claim 1, characterized in that: the trailer hook (1) is of a U-shaped structure, the bottom end of the trailer hook is fixedly connected with the front end of a trailer hook shaft sleeve, mounting holes are formed in the two ends of the trailer hook shaft sleeve and used for connecting a locking pin shaft (2), and the direction of the locking pin shaft (2) is consistent with that of a positioning shaft pin (3).