阅读说明：本技术 一种轨道车辆地板支撑座 (Rail vehicle floor supporting seat ) 是由 张玉祥 董磊 曾先会 陈俊辉 罗俊 黄涛 陈璋 周娟 于 2021-09-30 设计创作，主要内容包括：本发明属于轨道交通车辆设备地板结构领域,公开一种轨道车辆地板支撑座,包括贴合地板的顶面,及安装于地板底架的安装槽内的座体；安装槽由安装底板和对称设置凸出安装底板上的两个卡合部围合而成；所述座体上设置有容置腔体；容置腔体包括与顶面的下端贴合的连接翼及与连接翼连接向内预弯曲的侧面区段,安装后,地板底架的卡合部顶端与连接翼呈间隙设置；间隙的宽度大于支撑座竖直方向的变形量,支撑座竖直方向的变形量为竖直方向的工作载荷与支撑座的线性刚度的比值。本发明通过对支撑座的结构改变,实现了地板支撑座与地板底架的有效安装。将地板底架的卡合部顶端与连接翼呈间隙设置,有效地保护了地板支撑座的承载安全性及使用寿命。(The invention belongs to the field of a floor structure of rail transit vehicle equipment, and discloses a floor supporting seat for a rail vehicle, which comprises a top surface attached to a floor and a seat body arranged in an installation groove of a floor underframe; the mounting groove is formed by enclosing a mounting bottom plate and two clamping parts symmetrically arranged on the protruding mounting bottom plate; the seat body is provided with an accommodating cavity; the accommodating cavity comprises a connecting wing attached to the lower end of the top surface and a side surface section which is connected with the connecting wing and is pre-bent inwards, and after the accommodating cavity is installed, the top end of the clamping part of the floor underframe and the connecting wing are arranged in a clearance mode; the width in clearance is greater than the deflection of supporting seat vertical direction, and the deflection of supporting seat vertical direction is the ratio of vertical direction's work load and the linear rigidity of supporting seat. The invention realizes the effective installation of the floor supporting seat and the floor underframe by changing the structure of the supporting seat. The top end of the clamping part of the floor underframe and the connecting wing are arranged in a clearance manner, so that the bearing safety and the service life of the floor supporting seat are effectively protected.)

1. A rail vehicle floor supporting seat comprises a top surface attached to a floor, wherein a seat body is arranged at the lower part of the top surface and is installed in an installation groove of a floor underframe; the mounting groove is formed by enclosing a mounting bottom plate and two clamping parts which are symmetrically arranged; the seat body is characterized in that the seat body is provided with an accommodating cavity;

the accommodating cavity comprises a connecting wing attached to the lower end of the top surface and a side surface section which is connected with the connecting wing and is pre-bent inwards, and after the accommodating cavity is installed, two sides of the floor underframe are clamped in the accommodating cavity, so that the top end of a clamping part of the floor underframe and the connecting wing are arranged in a clearance mode; the width D of the gap is larger than the deformation S of the supporting seat in the vertical direction, and the deformation S of the supporting seat in the vertical direction is the ratio of the working load F in the vertical direction to the linear rigidity K of the supporting seat.

2. The railway vehicle floor support stand of claim 1, wherein the support stand is a symmetrical body of rubber material throughout.

3. The railway vehicle floor support stand of claim 2, wherein the top surface has a cross-sectional length greater than the relative distance of the two engaging portions.

4. The railway vehicle floor support stand of claim 1, wherein the engaging portion includes a vertical stop portion and a lateral stop portion disposed at an angle to the vertical stop portion.

5. The railway vehicle floor support stand of claim 4, wherein the vertical limiting portion and the lateral limiting portion are integrally formed in a vertical arrangement.

6. The railway vehicle floor support stand of claim 5, wherein the vertical limiting portion has a thickness less than a vertical width of the receiving cavity.

7. The railway vehicle floor support stand of claim 6, wherein the height of the vertical limiting portion is greater than the height of the cross section of the seat body to which the vertical limiting portion is attached.

8. The railway vehicle floor support stand of any one of claims 1 to 7, wherein the receiving cavity is connected to the bottom surface of the stand body through a guide section; the guide section and the bottom surface of the seat body enclose to form the seat body, and the maximum value of the width of the cross section of the seat body is equal to the minimum distance between the inner walls of the two clamping parts.

Technical Field

The invention belongs to the field of floor structures of rail transit vehicle equipment, and particularly relates to a floor supporting seat for a rail vehicle.

Background

With the rapid development of rail transit, the requirement for the lightweight of the carriage is higher and higher, and among them, the light high-strength floor becomes the main development trend of the rail transit floor. At present, domestic rail transit floors mainly adopt sandwich structures, for example, high-speed train floors mostly adopt foam sandwich structure floors, and subway floors with higher bearing requirements adopt aluminum honeycomb sandwich structure floors. But the mechanical property of the foam sandwich structure floor is limited, and the later repair difficulty is large; and aluminium honeycomb sandwich structure floor is overweight relatively, and when the heavy object falls from higher department, when exceeding the ability bearing pressure of aluminium honeycomb, causes easily and collapses, hardly restores, does not also possess good sound insulation, the performance of making an uproar simultaneously. In addition, the skin and the middle core layer of the traditional foam and honeycomb sandwich structure floor are formed by a glue joint process, so that the traditional foam and honeycomb sandwich structure floor is easy to delaminate in the using process, the mechanical property is greatly reduced, and finally the material is failed, so that the delamination resistance is poor.

Current floor supporting seat is installed between floor and floor chassis, bonds the aluminum plate of floor supporting seat at aluminium honeycomb floor through the double faced adhesive tape, installs the lower part rubber of floor supporting seat in the middle of the floor chassis simultaneously, plays the vertical load of transmission, and the effect of buffering vibration improves the train and takes the travelling comfort. However, since the installation between the floor support base and the floor underframe is not scientific enough, when the applied load is greater than the working load of the support base, the rigid contact is formed between the support base and the bottom plate installation frame, if the applied load is continuously increased, the floor support base can be damaged, and the buffer and vibration reduction of the support base can be seriously damaged.

Therefore, a structure which can effectively enable the floor supporting seat and the floor underframe to be matched and installed is needed to be invented, and the structure has great economic benefits and market values in production and use.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the railway vehicle floor supporting seat, and the effective installation of the floor supporting seat and a floor underframe is realized through the reasonable structural configuration of the supporting seat.

According to the invention, through scientific setting of the gap between the top end of the clamping part of the floor underframe and the connecting wing, the width D of the gap is larger than the deformation S of the supporting seat in the vertical direction, so that the floor supporting seat has a nonlinear rigidity characteristic after vertical displacement exceeds the gap size. The bearing safety and the service life of the floor supporting seat are effectively protected.

The invention is realized by the following technical scheme:

the disclosed rail vehicle floor supporting seat comprises a top surface attached to a floor, wherein a seat body is arranged at the lower part of the top surface and is installed in an installation groove of a floor underframe; the mounting groove is formed by enclosing a mounting bottom plate and two clamping parts symmetrically arranged on the protruding mounting bottom plate; the seat body is provided with an accommodating cavity;

the accommodating cavity comprises a connecting wing attached to the lower end of the top surface and a side surface section which is connected with the connecting wing and is pre-bent inwards, and after the accommodating cavity is installed, two sides of the floor underframe are clamped in the accommodating cavity, so that the top end of a clamping part of the floor underframe and the connecting wing are arranged in a clearance mode; the width D of the gap is larger than the deformation S of the supporting seat in the vertical direction, and the deformation S of the supporting seat in the vertical direction is the ratio of the working load F in the vertical direction to the linear rigidity K of the supporting seat.

Furthermore, the whole supporting seat is a symmetrical body made of rubber.

Further, the length of the cross section of the top surface is larger than the relative distance of the two clamping parts. The length of top surface is greater than the relative distance of two block portions, and this setting makes the floor supporting seat receive vertical load when exceeding the operating load of supporting seat, and the rubber body warp the distance that makes top surface and block portion diminishes, and the top laminating of final top surface and block portion, the two laminating produces rigid contact, and the pedestal of effective protection installation in the mounting groove of floor chassis improves the life of supporting seat.

Further, the block portion includes the spacing portion of vertical direction and the horizontal spacing portion that is the angle setting with the spacing portion of vertical direction. The vertical direction and the horizontal direction displacement of the supporting seat can be effectively limited by the vertical direction limiting part and the horizontal limiting part of the clamping part, so that the whole supporting seat is stably installed in the installation bottom plate.

Furthermore, the vertical limiting part and the horizontal limiting part are integrally formed and are arranged vertically.

Further, the thickness of the vertical direction limiting part is smaller than the width of the accommodating cavity in the vertical direction.

Furthermore, the height of the vertical limiting part is larger than the thickness of the cross section of the seat body attached to the vertical limiting part.

Furthermore, the accommodating cavity is connected with the bottom surface of the seat body through the guide section; the guide section and the bottom surface of the seat body enclose to form the seat body, and the maximum value of the width of the cross section of the seat body is equal to the minimum distance between the inner walls of the two clamping parts.

Compared with the prior art, the invention has the beneficial effects that:

according to the railway vehicle floor support seat, the size of the gap between the floor support seat and the floor underframe is controlled, so that the floor support seat is in a nonlinear rigidity characteristic after vertical displacement exceeds the size of the gap. When clearance size is greater than the vertical deflection of floor supporting seat, all vertical loads are born by the supporting seat is whole, can effectively play the effect of buffering and damping, improve the travelling comfort and the practicality of whole rail vehicle floor supporting seat. When the vertical deflection of clearance size less than or equal to floor supporting seat, during the use, the top of floor chassis contacts with the top surface on floor, and this contact is the rigidity contact, can effectively protect the floor supporting seat of installing in floor chassis, increases the life of floor supporting seat.

According to the railway vehicle floor support seat, due to the design of the guide arc section and the straight line section which protrude outwards of the guide section, the floor support seat can be vertically pressed into a floor underframe after bottom rubber deforms in the vertical pressing process. Meanwhile, after the floor underframe is completely pressed in, the rubber deformation is recovered, and the displacement limitation in the horizontal direction and the vertical direction can be realized.

Drawings

Fig. 1 is a schematic view of the overall structure of the railway vehicle floor support seat of the present invention.

Fig. 2 is a schematic view of an installation structure of the railway vehicle floor support base.

The structure comprises a base, a floor, a top surface, a base body, a connecting wing, a side section, a bottom surface, a guide section, a receiving cavity, a hollow part, a floor underframe, a mounting bottom plate, a clamping part, a vertical limiting part and a transverse limiting part, wherein the base comprises 1-the floor, 10-the top surface, 20-the base body, 21-the connecting wing, 22-the side section, 23-the bottom surface of the base body, 24-the guiding section, 30-the receiving cavity, 40-the hollow part, 50-the floor underframe, 51-the mounting bottom plate, 52-the clamping part, 501-the vertical limiting part and 502-the transverse limiting part.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1-2, the railway vehicle floor support base in the present embodiment includes a top surface 10 attached to a floor 1, and a base body 20 installed in an installation groove of a floor underframe 50; the mounting groove is formed by enclosing a mounting bottom plate 51 and two clamping parts 52 symmetrically arranged on the protruding mounting bottom plate 51; the base body 20 is further provided with an accommodating cavity 30. The supporting seat of the embodiment is a symmetrical body made of rubber.

Specifically, the receiving cavity 30 includes a connecting wing 21 attached to the lower end of the top surface 10 and a side section 22 connected to the connecting wing 21 and pre-bent inward, and the connecting wing 21 of the present embodiment is vulcanized and coated on the outer wall of the floor 1.

The accommodating cavity 30 is connected with the bottom surface 23 of the seat body through the guide section 24; the guide section 24 and the base bottom surface 23 enclose to form a base 20; after installation, the two sides of the floor underframe 50 are clamped in the accommodating cavity 30, so that the top end of the clamping part 52 of the floor underframe 50 and the connecting wing 21 are arranged in a gap; the width D of the gap is larger than the deformation S of the supporting seat in the vertical direction, and the deformation S of the supporting seat in the vertical direction is the ratio of the working load F in the vertical direction to the linear rigidity K of the supporting seat. I.e., the magnitude relationship between the clearance D and the deformation amount S of the support seat in fig. 2 needs to be defined. Wherein the deformation S = F/K, i.e. the working load to which the support seat is subjected/the linear stiffness of the support seat. When D is less than or equal to S, the actual value of K is nonlinear rigidity K', and when the gap size is less than or equal to the vertical deformation of the floor supporting seat, the top end of the floor underframe 50 is in contact with the top surface 10 of the floor, the contact is rigid contact, the floor supporting seat arranged in the floor underframe 50 can be effectively protected, and the service life of the floor supporting seat is prolonged.

When the clearance size is greater than the vertical deflection of floor supporting seat, D > S promptly, all vertical loads are born by the supporting seat is whole, can effectively play the effect of buffering and damping, improve the travelling comfort and the practicality of whole rail vehicle floor supporting seat.

In order to make the floor support seat receive the vertical load and exceed the operating load of the support seat, the rubber body deforms to make the distance between the connecting wing 21 and the clamping part 52 of the top surface 10 become smaller, and finally the connecting wing 21 and the clamping part 52 of the top surface 10 are attached to each other, and the connecting wing 21 and the clamping part 52 are attached to each other to generate rigid contact, so that the seat body 20 installed in the installation groove of the floor underframe 50 is effectively protected, and the service life of the support seat is prolonged. The present embodiment provides the top surface 10 with a cross-section having a length greater than the relative distance between the two engaging portions 52.

The engaging portion 52 includes a vertical position-limiting portion 501 and a horizontal position-limiting portion 502, which are integrally formed and vertically disposed, and are angularly disposed with respect to the vertical position-limiting portion 501. The vertical direction limiting portion 501 and the horizontal direction limiting portion 502 of the engaging portion 52 can effectively limit the displacement of the support seat in the vertical direction and the horizontal direction, so that the entire support seat is stably installed in the installation base plate 50.

More specifically, the thickness of the vertical direction limiting portion 501 is smaller than the width of the accommodating cavity 30 in the vertical direction. And the height of the vertical direction limiting portion 501 is greater than the thickness of the cross section of the seat body 20 attached thereto.

This design ensures that the vertical direction stopper 501 can be smoothly engaged with the receiving cavity 30 during installation.

The accommodating cavity 30 is connected with the bottom surface 23 of the seat body through the guide section 24; the guide section 24 and the bottom surface 23 of the base body form the base body 20, and the maximum cross-sectional width of the base body 20 is equal to the minimum distance between the inner walls of the two engaging portions 52.

For the sake of installation convenience, the guide section 24 is provided to include a straight line segment abutting against the inner wall of the engaging portion 52 of the floor chassis 50; one end of the straight line segment is connected with the side section 22; the other end is connected with the bottom of the supporting seat through a guide arc section which protrudes outwards. That is, in fig. 1, through the design of the round corner and the straight line segment at the position III, the floor support seat can be vertically pressed into the floor underframe 50 after the bottom rubber deforms in the vertical pressing process. Meanwhile, after the floor chassis 50 is completely pressed in, the rubber deformation is recovered, and the displacement limitation in the horizontal direction and the vertical direction can be realized.

As can be seen from fig. 2, the bottom surface 23 of the support base is provided with an empty space 40 recessed in the direction of the top surface 10. The provision of the void 40 allows the vertical stiffness carried by the entire support seat to be adjusted. Meanwhile, symmetrical hollow phases are arranged on two sides of the supporting seat 20 close to the clamping portion 52, so that a certain space can be reserved for deformation of the supporting seat, and the use performance of the whole floor supporting seat is improved.

It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.