阅读说明：本技术 一种轨枕 (Sleeper ) 是由 冯青松 廖春明 周豪 张凌 于 2020-12-25 设计创作，主要内容包括：本发明涉及一种轨枕,其包括支撑板、螺杆固定板、轨枕本体、导向装置和螺纹调高装置,螺杆固定板设置在轨枕本体与支撑板之间,导向装置和螺纹调高装置分别设置在轨枕本体对应内轨轨面中心正下方和对应外轨轨面中心正下方；所述导向装置包括导向圆柱和支撑块,所述导向圆柱和支撑块固定连接或者一体形成；所述支撑块设置在螺杆固定板上,所述导向圆柱上设置有通孔,螺栓穿过所述通孔与所述轨枕本体固定连接。采用这样的方案,通过驱动装置动作即可实现螺杆将轨枕本体向上顶起,并且轨枕本体会围绕所述导向圆柱的轴心发生转动结构简单,安装方便,实现了方便快捷调高,并且解决了轨枕本体抬升过程中水平方向轻微偏移导致的对螺杆的干涉或损坏。(The invention relates to a sleeper, which comprises a supporting plate, a screw fixing plate, a sleeper body, a guiding device and a thread heightening device, wherein the screw fixing plate is arranged between the sleeper body and the supporting plate, and the guiding device and the thread heightening device are respectively arranged under the center of the inner rail surface corresponding to the sleeper body and under the center of the outer rail surface corresponding to the sleeper body; the guide device comprises a guide cylinder and a supporting block, and the guide cylinder and the supporting block are fixedly connected or integrally formed; the supporting block is arranged on the screw fixing plate, a through hole is formed in the guide cylinder, and a bolt penetrates through the through hole and is fixedly connected with the sleeper body. By adopting the scheme, the screw rod can jack the sleeper body upwards through the action of the driving device, the sleeper body can rotate around the axis of the guide cylinder, the structure is simple, the installation is convenient, the convenient and fast height adjustment is realized, and the interference or damage to the screw rod caused by the slight deviation of the horizontal direction in the lifting process of the sleeper body is solved.)

1. A sleeper, its characterized in that: the sleeper comprises a supporting plate, a screw fixing plate, a sleeper body, a guiding device and a thread heightening device, wherein the screw fixing plate is arranged between the sleeper body and the supporting plate, and the guiding device and the thread heightening device are respectively arranged under the center of the rail surface of the inner rail corresponding to the sleeper body and under the center of the rail surface of the outer rail corresponding to the sleeper body; the guide device comprises a guide cylinder and a supporting block, and the guide cylinder and the supporting block are fixedly connected or integrally formed; the supporting block is arranged on the screw fixing plate, a through hole is formed in the guide cylinder, and a bolt penetrates through the through hole and is fixedly connected with the sleeper body.

2. The tie as claimed in claim 1, wherein: the sleeper body is provided with a guide groove used for being matched with the guide cylinder.

3. The tie as claimed in claim 1, wherein: the thread heightening device comprises a screw rod driving device, a screw rod and a force bearing metal nut, wherein the driving device is arranged in a groove of the supporting plate. The bearing metal nut is arranged between the screw fixing plate and the sleeper body. The screw rod is in threaded fit with the bearing metal nut and abuts against the lower surface of the sleeper body, and the screw rod can be driven by the screw rod driving device to rotate in a lifting mode, so that the sleeper body can be driven to lift.

4. The tie as claimed in claim 3, wherein: the supporting shoe is four pyramid frustum structures, the direction cylinder sets up the top surface at four pyramid frustum.

5. The tie as claimed in claim 3, wherein: the screw rod top is provided with the screw rod cap, the top of screw rod cap is the arc structure.

6. The tie as claimed in claim 3, wherein: the sleeper body with the screw cap corresponds the position and is provided with the support recess.

7. The tie as claimed in claim 3, wherein: the screw fixing plate is provided with a positioning groove, and the force bearing metal nut is arranged in the positioning groove.

8. The tie as claimed in claim 3, wherein: the driving device comprises a power source, a dowel bar and a screw lifting device, wherein the power provided by the power source reaches the screw lifting device through the transmission of the dowel bar, so that the screw lifting device rotates to drive the screw to rotate and lift.

9. The tie as claimed in claim 3, wherein: and the thread between the screw rod and the force bearing metal nut is a self-locking thread.

Technical Field

The invention belongs to the technical field of rail transit, and particularly relates to a spiral strut type sleeper suitable for a small-radius curve section.

Background

With the rapid development of railways in China, the total course of the lines is increased year by year, the lines are increased continuously, the development of railways in the future is to increase the speed continuously, however, curve sections can be generated inevitably when the railways are built, the curve radius of the curves restricts the speed increase of trains in the future, the speeds of different types of trains passing through the curve sections are different, when the curves pass through the curve sections because the outer rail is too high and is not proper, the riding comfort and driving stability of passengers are seriously influenced, the limit driving speed is limited, and even the danger of line damage is generated. In order to meet the requirements of accelerating high-speed trains and pursuing beautiful life of people in the future, how to increase the passing speed of the trains in the curve section with the small radius becomes one of the bottlenecks of rapid development of the current railways.

In order to improve the passing condition of the train on a small-radius curve and improve the running speed of the train, two methods which are widely adopted in China at present are mainly adopted. One is engineering reconstruction, i.e. the small radius curve section is reconstructed into a large radius curve section. The principle of ultrahigh setting h is 11.8v2/R, and the radius value R of the curve section is increased under the same ultrahigh value h, so that the method is a mode for effectively increasing the train passing speed. However, the number of small-radius curve sections in China is large, the distribution is wide, the method firstly consumes long time and can influence the operation of a normal railway line, and secondly needs to consume a lot of manpower, financial resources and material resources. The other method is to adopt a pendulum type train, namely, the influence of centrifugal force is reduced through automatic tilting of a train body, so that the passing speed of the train and the comfort of passengers are improved. The method can improve the passing speed of the train to a certain extent, but the additional arrangement of the tilting device on the pendulum type train suspension system can increase the dead weight of the train body, increase the traction force required by the train, greatly increase the energy consumption, increase the abrasion of the steel rail and have higher economic cost.

Disclosure of Invention

Aiming at the problem of speed increase of the train in the small-radius curve section of the railway and the defects of the existing solution, the invention designs the spiral strut type ultrahigh sleeper suitable for the small-radius curve section. By laying the ultrahigh sleeper on the small-radius curve section of the existing line, the ultrahigh value of the outer rail of the small-radius curve section can be adjusted in real time by means of an external speed measuring system and a feedback system to assist an internal device of the ultrahigh sleeper and the actual running speed of a train on the curve section. The invention effectively avoids the phenomenon of over-high and under-high caused by centrifugal force, thereby reducing the wheel-rail abrasion rate of the small-radius curve segment and improving the train passing speed. The invention can directly replace the sleeper with the existing small-radius curve section in the laying process, has simple construction, less time consumption and convenient part replacement. The train body of the original train is not changed, so that more energy consumption of the train is used for carrying passengers and goods, the energy consumption of the device is low, the utilization efficiency of energy is effectively improved, and the running stability and the passenger comfort level of the train can be improved to a certain extent.

Specifically, the present invention provides a sleeper, characterized in that: the sleeper comprises a supporting plate, a screw fixing plate, a sleeper body, a guiding device and a thread heightening device, wherein the screw fixing plate is arranged between the sleeper body and the supporting plate, and the guiding device and the thread heightening device are respectively arranged under the center of the rail surface of the inner rail corresponding to the sleeper body and under the center of the rail surface of the outer rail corresponding to the sleeper body;

the guide device comprises a guide cylinder and a supporting block, and the guide cylinder and the supporting block are fixedly connected or integrally formed; the supporting block is arranged on the screw fixing plate, the guide cylinder is provided with a through hole, and a bolt penetrates through the through hole to be fixedly connected with the sleeper body

Further, it is characterized in that: the sleeper body is provided with a guide groove used for being matched with the guide cylinder.

Further, it is characterized in that: the thread heightening device comprises a screw rod driving device, a screw rod and a force bearing metal nut, wherein the driving device is arranged in a groove of the supporting plate. The bearing metal nut is arranged between the screw fixing plate and the sleeper body. The screw rod is in threaded fit with the bearing metal nut and abuts against the lower surface of the sleeper body, and the screw rod can be driven by the screw rod driving device to rotate in a lifting mode, so that the sleeper body can be driven to lift.

Further, it is characterized in that: the supporting shoe is four pyramid frustum structures, the direction cylinder sets up the top surface at four pyramid frustum.

Further, it is characterized in that: the screw rod top is provided with the screw rod cap, the top of screw rod cap is the arc structure.

Further, it is characterized in that: the sleeper body with the screw cap corresponds the position and is provided with the support recess.

Further, it is characterized in that: the screw fixing plate is provided with a positioning groove, and the force bearing metal nut is arranged in the positioning groove.

Further, it is characterized in that: the driving device comprises a power source, a dowel bar and a screw lifting device, wherein the power provided by the power source reaches the screw lifting device through the transmission of the dowel bar, so that the screw lifting device rotates to drive the screw to rotate and lift.

Further, it is characterized in that: and the thread between the screw rod and the force bearing metal nut is a self-locking thread.

The invention has the advantages that: by adopting the scheme, when the outer rail at the corner of the track is required to be lifted, the screw rod can jack the sleeper body upwards through the action of the driving device, and the sleeper body rotates around the axis of the guide cylinder. The scheme is simple in structure and convenient to install, convenient and fast height adjustment is achieved, and interference or damage to the screw rod caused by slight deviation of the horizontal direction in the lifting process of the sleeper body is avoided.

Drawings

FIG. 1 is a front view of the tie of the present application;

FIG. 2 is a top plan view of the tie of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 5 is a view of the spacer nut;

fig. 6 is a guide cylinder and a fixing plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-6, the sleeper of the present invention includes supporting plates 1, screw fixing plates 2, a sleeper body 3, a guiding device 4 and a thread heightening device 5, wherein the screw fixing plates 2 are disposed between the supporting plates 1 of the sleeper body 3, and the guiding device 4 and the thread heightening device 5 are respectively disposed under the center of the sleeper body corresponding to the inner rail surface and under the center of the sleeper body corresponding to the outer rail surface.

The guiding device comprises a guiding cylinder 41 and a supporting block 42, and the guiding cylinder 41 and the supporting block 42 are fixedly connected or integrally formed; the supporting block 42 is arranged on the screw fixing plate 2 or is integrally formed with the screw fixing plate 2; the guiding cylinder 41 is provided with a through hole, and a bolt 43 penetrates through the through hole to be fixedly connected with the sleeper body 3.

The sleeper body 3 is provided with a guide groove 31 for cooperating with the guide cylinder 41.

The sleeper 3 is thus checked and positioned by means of the guide cylinders 41 and the support blocks 42. And after the positioning is completed, the guide cylinder 41 is mounted on the sleeper and positioned right below the rail 6 by means of the bolt 43 and the guide cylinder groove 31, and the assembly of the guide portion is completed

The thread heightening device 5 comprises a screw driving device, a screw 51 and a force bearing metal nut 52, wherein the driving device 51 is arranged in a groove of the support plate 1. The bearing metal nut 52 is arranged between the screw rod fixing plate 2 and the sleeper body 3. The screw rod 51 is in threaded fit with the bearing metal nut 52 and is pressed against the lower surface of the sleeper body 3. Under the driving of the screw driving device, the screw 51 can be lifted and lowered to rotate, and further, the lifting of the sleeper body 3 can be driven.

By adopting the scheme, when the outer rail at the corner of the rail is required to be lifted, the screw rod 51 can jack the sleeper body 3 upwards through the action of the driving device, and the sleeper body 3 rotates around the axis of the guide cylinder 1, so that the height adjustment is realized. And such guider simple structure, simple to operate, the adjustment is swift.

In one embodiment, the supporting block 42 is a quadrangular frustum structure, and the guiding cylinder 41 is disposed on the top surface of the quadrangular frustum. The force bearing effect is better.

In one scheme, a screw cap 53 is arranged at the top end of the screw 51, and the top end of the screw cap is of an arc-shaped structure. The screw cap 53 is detachably connected with the top end of the screw 51 through a thread structure.

In one embodiment, the sleeper body 3 is provided with a support groove 32 at a position corresponding to the screw cap 53.

In a preferred embodiment, in order to solve the problem of interference or damage to the screw 51 caused by slight horizontal displacement during the lifting process of the sleeper body 3, it is found through research that the cross-sectional curves of the supporting grooves 32 in the length direction of the sleeper block satisfy the following relationship,wherein k is equal to the strut nut radius; x is the horizontal distance between a certain point of a groove curve under the outer sleeper and the starting end of the bottom of the groove of the sleeper, and y is the height between the certain point of the groove curve and the bottom of the sleeper; y', y "are the first and second derivatives of the function y over x, respectively. By the scheme, the sleeper body 3 can be continuously and stably lifted, and the damage of the heightening device caused by slight horizontal deviation in the lifting process of the sleeper body 3 is avoided.

In one scheme, a positioning groove is arranged on the screw fixing plate 2, and the force bearing metal nut 52 is arranged in the positioning groove.

In one aspect, the groove has a trapezoidal cross-section, preferably an isosceles trapezoid. The cross-sectional shape of the force bearing metal nut 52 is adapted to the groove, for example, at least the lower half of the cross-section of the force bearing metal nut 52 is trapezoidal. The force bearing capacity of the force bearing metal nut 52 adopting the structure is stronger.

In one scheme, the thread between the screw rod 51 and the bearing metal nut 52 is a self-locking thread, so that no matter how much force is applied to the screw rod 51 by the sleeper body 3, the relative rotation between the screw rod 51 and the bearing metal nut 52 can not occur.

In one aspect, the driving device includes a power source 54 (e.g., an electric motor), a force transmission rod 55 and a screw lifting device 56, wherein the power provided by the power source 54 is transmitted to the screw lifting device 56 through the force transmission rod 55, so that the screw lifting device 56 rotates to rotate and lift the screw 51. Wherein the screw lifting device 56 is a right-angle transmission mechanism, such as a worm gear, a bevel gear and the like

In one embodiment, the drive is arranged in a concrete frame 11 arranged on the support plate 1, and the power source is fixed to the bottom surface of the concrete frame 11, for example, by means of bolts 7. This can better protect the normal operation of the drive.

In one aspect, the sleeper is further provided with a protective housing 12, and when the sleeper is disposed in a foundation, the protective housing 12 can protect the sleeper structure from moisture and impurities.

In one scheme, each driving device drives two screw rods 51, for example, a dowel bar 55 is connected in series with two screw rod lifting devices 56, each screw rod lifting device 56 drives one screw rod 51 to rotate and lift, so that the sleeper body 3 is stably lifted, and the condition that the sleeper is unnecessarily deflected due to lifting of one fulcrum is avoided.

The working process of the scheme of the invention is described in the following with the attached drawings:

after the sleeper is arranged at a specified position, when the height of the outer rail needs to be increased to a preset position, a control system which is not shown in the figure sends an action command to the power source 54, the power source outputs power and drives the force transmission rod 55 to act, and then the power is transmitted to the screw lifting device 56, so that the screw lifting device 56 rotates, the screw 51 is driven to rotate and lift, the screw 51 and the bearing metal nut 52 rotate relatively, and the bearing metal nut 52 provides enough force support for the screw 51. The screw cap 53 moves upward with the screw 51, thereby pushing one side of the sleeper body 3 to displace upward.

At this time, the other side of the sleeper body 3 rotates about the axis of the guide cylinder 41. So that the sleeper body 3 is inclined as a whole.

In the process, the sleeper body 3 rotates, so that the right side rail sleeper body 3 slightly deviates leftwards in the drawing, at the moment, the contact position of the screw cap 53 and the sleeper body 3 is changed due to the existence of the curvature of the supporting groove 32, the horizontal acting force of the sleeper body 3 on the screw cap 53 is avoided, and the interference or damage of the system is also avoided.

Similarly, when the outer rail is required to be lowered to the horizontal height, the power source 54 may perform the reverse operation of the above-described process.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.