CN220364809U - Switch trolley locking device - Google Patents

Abstract

The embodiment of the disclosure relates to a turnout trolley locking device, comprising: the ground locking device is arranged on the ground; the connecting part is arranged on the trolley; the turnout locking device is arranged on a turnout, and comprises a mounting part and a moving part which are connected, wherein the mounting part is fixedly connected with the turnout, and the moving part is connected with the ground locking device through the connecting part so as to lock the turnout and the trolley; wherein, platform truck and switch fixed connection. In this embodiment, platform truck and switch locking device all fixed mounting can be realized being connected with connecting portion and ground locking device in proper order through control mobile part to lock platform truck and switch simultaneously, and force the platform truck to calibrate to original position of setting, eliminated the risk factor, reduced the stress concentration of platform truck and switch roof beam junction, reduced vibration, noise, improved the reliability and the stationarity of switch.

Description

Switch trolley locking device

Technical Field

The embodiment of the disclosure relates to the technical field of rail transit, in particular to a turnout trolley locking device.

Background

At present, the middle-low speed magnetic levitation turnout trolley and the locking device are arranged separately, and the disadvantage of the turnout trolley is that the turnout trolley occupies a lot of space under the beam, so that in order to ensure that a crank arm of the driving device has enough rotation space, the turnout trolley does not beat on the locking device during movement, and the turnout beam needs to be designed into a fish belly structure, so that the installation position of the locking device is higher than the movement range of the crank. However, when the beam structure is special, a notch is formed on the beam structure, and the beam structure is not suitable for redesigning the fish belly beam structure, and the locking and the trolley are required to be designed into a whole at the moment so as to ensure the installation space of equipment under the beam. The trolley and the locking device are designed into a whole, and the whole turnout is locked by the locking trolley, so that potential safety hazards caused by unrestricted freedom of the trolley can be eliminated; the trolley can be locked to further reduce vibration generated by the turnout when the vehicle passes.

In the related art, an electric push rod with a locking function in a turnout locking device is installed on the ground, a limiting groove is installed on a trolley, a locking shaft or a rotating wheel is pressed into the locking groove on the trolley through the electric push rod, and the purpose of limiting the movement of a turnout beam is achieved through limiting the freedom degree of the trolley. However, the above technique cannot be used for a magnetic levitation switch with a switch beam having a large aspect ratio. When the turnout beam receives transverse force, taking a long beam of 20m as an example, the transverse deformation of the beam meeting the design requirement is not more than L/2600 (L represents the length of the beam), and the transverse deformation of the beam can reach 7.69mm. The turnout is used in an open air environment, and when the sunlight temperature difference at two sides of the beam is 15 ℃, the temperature gradient deformation reaches 10mm.

The above technique can occur when the beam is laterally deformed in two cases: (1) Under the condition of uneven sunlight in the morning and evening and temperature gradient, the trolley rotates along with the deformation of the beam, and as the trolley is provided with a longer locking groove, a locking device arranged on the ground cannot adapt to the lateral corner of the turnout beam, and cannot enter the locking groove unless a gap is increased, but the excessive gap also causes the positioning accuracy of the locking device to be poor, so that the driving safety is affected. (2) When the locking is good, the deformation or temperature deformation of the trolley part occurs, the locking device is required to limit the deformation of the trolley part, so that the beam of the trolley part is not deformed, and great additional stress for controlling the deformation of the beam can be generated on the locking device.

The technology is only suitable for the straddle type monorail turnout, the length of the beam is about 6m, the length-width ratio is not more than 7.5, the beam is small in transverse deformation under stress, and the turning angle of the beam end can be ignored; the method is not suitable for the magnetic levitation turnout with a large turnout beam length-width ratio.

Accordingly, there is a need to improve one or more problems in the related art as described above.

It is noted that this section is intended to provide a background or context for the technical solutions of the present disclosure as set forth in the claims. The description herein is not admitted to be prior art by inclusion in this section.

Disclosure of Invention

It is an object of embodiments of the present disclosure to provide a railroad switch trolley locking apparatus that overcomes, at least in part, one or more of the problems due to the limitations and disadvantages of the related art.

The embodiment of the disclosure provides a turnout trolley locking device, comprising:

the ground locking device is arranged on the ground;

a connection part provided on the dolly;

the turnout locking device is arranged on a turnout, and comprises a mounting part and a moving part which are connected, wherein the mounting part is fixedly connected with the turnout, and the moving part is connected with the ground locking device through the connecting part so as to lock the turnout and the trolley;

wherein, the platform truck with switch fixed connection.

In one embodiment of the present disclosure, the ground locking device is a lockpin box.

In an embodiment of the disclosure, the moving part includes a moving part and a locking part that are fixedly connected, and the moving part drives the locking part to move and locks the locking part with the connecting part and the ground locking device.

In an embodiment of the disclosure, the moving member is an electric push rod, the locking member is a lock pin, and the mounting portion is a push rod seat.

In an embodiment of the disclosure, the connecting portion is a through hole, and the through hole is formed on the trolley.

In an embodiment of the disclosure, two lock pin guide seats are further arranged on the trolley, and the lock pin guide seats are arranged at two ends of the through hole and are matched with the through hole.

In an embodiment of the disclosure, the switch is a magnetic levitation switch with a switch beam aspect ratio greater than 7.5.

In an embodiment of the disclosure, the cross beam of the trolley is fixedly connected with the switch beam of the switch.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

according to the turnout trolley locking device, the trolley and the turnout locking device are fixedly arranged on the turnout, and the connection between the trolley and the turnout and the ground locking device can be realized by controlling the moving part to lock the trolley and the turnout simultaneously, and the trolley is forced to be calibrated to the originally set position, so that the risk factors are eliminated, the stress concentration of the junction of the trolley and the turnout beam is reduced, the vibration and the noise are reduced, and the reliability and the stability of the turnout are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 shows a schematic structural view of a railroad switch trolley locking device in an exemplary embodiment of the present disclosure;

fig. 2 shows a schematic structural view of a railroad switch car lock device in yet another exemplary embodiment of the present disclosure;

fig. 3 is a schematic view showing the construction of a railroad switch car locking apparatus in still another exemplary embodiment of the present disclosure;

fig. 4 is a schematic view showing the structure of a latch insertion carriage and a latch pull-out carriage in an exemplary embodiment of the present disclosure.

FIG. 5 illustrates a schematic diagram of the structure of a lockbox in an exemplary embodiment of the disclosure;

FIG. 6 illustrates a schematic view of the contact relationship of a locking pin with a roller after locking by a floor locking device in an exemplary embodiment of the present disclosure.

Reference numerals:

10. a trolley; 11. a lock pin guide seat; 20. a switch beam; 100. a ground locking device; 200. a connection part; 300. a switch locking device; 301. a mounting part; 302. a moving part; 3021. a moving member; 3022. a locking member.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

In this exemplary embodiment, a railroad switch trolley locking device is provided, as shown in fig. 1, which may include: ground locking device 100, connection 200 and switch locking device 300.

Specifically, the ground locking device 100 is disposed on the ground, and has good stability, and is not easy to displace when being stressed. Alternatively, the floor locking device 100 may be a lockpin box. The connection part 200 is provided on the cart 10, alternatively, in some embodiments, the connection part 200 may be a sleeve fixed on the cart 10 or a through hole formed on the cart 10, or the like, but is not limited thereto.

The switch locking device 300 is arranged on a switch, for example, fixedly below the switch beam 20. The switch locking device 300 comprises a mounting part 301 and a moving part 302 which are connected, the mounting part 301 is fixedly connected with the switch, and the moving part 302 is connected with the ground locking device 100 through the connecting part 200 so as to lock the switch and the trolley 10. The trolley 10 is fixedly connected with the turnout, specifically, the trolley 10 is mounted on the turnout beam 20 through bolts and the like, and a cross beam of the trolley 10 is fixedly connected with the turnout beam 20 of the turnout.

In this embodiment, the trolley 10 and the switch locking device 300 of the present application are fixedly installed on the switch, and the connection portion 200 and the ground locking device 100 may be sequentially connected through the control moving portion 302, so as to lock the trolley 10 and the switch at the same time, and force the trolley 10 to calibrate to the originally set position, thereby eliminating the risk factor, reducing the stress concentration at the junction of the trolley 10 and the switch beam 20, reducing the vibration and noise, and improving the reliability and stability of the switch.

Optionally, in some embodiments, the moving portion 302 includes a moving member 3021 and a locking member 3022 that are fixedly connected, where the moving member 3021 drives the locking member 3022 to move, and locks the locking member 3022 with the connecting portion 3021 and the ground locking apparatus 100. Specifically, the moving member 3021 may be an electric push rod, the mounting portion 301 may be a push rod seat, the locking member 3022 may be a lock pin, and the ground locking device 100 may be a lock pin box. When locking is required, the electric push rod drives the lock pin to move, passes through the connecting part 200 (which may be a through hole, for example) on the trolley 10, and then is inserted into the lock pin box to lock, thereby locking the trolley 10 and the turnout. The lock pin box can control whether the lock pin is free or not, and the lock pin can be carried out according to actual working requirements. As shown in fig. 3, when the switch beam 20 is deformed, the electric push rod and the trolley lock pin combination structure are changed in position along with the deformation of the beam body so as to adapt to the deformation of the beam. In addition, the trolley 10 is mounted on the beam, has a compact structure, is suitable for arrangement of other mechanisms under the turnout beam 20 and design of the turnout beam 20, and reduces the width of one trolley 10 and the safety distance and operation space required by the respective mounting of the two devices compared with the arrangement of the two devices.

On the basis of the above embodiment, as shown in fig. 2, two lock pin guide seats 11 are further provided on the trolley 10. The lock pin guide seats 11 are disposed at two ends of the through hole and are matched with the through hole, and the guide lock pin can move in the guide sleeve of the lock pin guide seat 11 and the through hole to realize linear movement of the lock pin, so that locking or unlocking work (as shown in fig. 4) is completed.

Note that the switch applicable to the present application is a magnetic levitation switch in which the aspect ratio of the switch beam 20 is greater than 7.5. In addition, the method can also be used for turnouts with aspect ratios smaller than 7.5.

Referring to fig. 5, when the floor locking device 100 employs a locking pin box, a roller 101 of the locking pin box is mounted on an eccentric shaft 102, the eccentric shaft 102 is mounted on a locking pin box bracket 103, the locking pin box bracket 103 is welded on the floor, and the roller 101 can rotate around the eccentric shaft 102.

Referring to fig. 6, two rollers 101 are disposed in the lock pin box, and after the cylindrical lock pin is inserted into the rollers 101, the cylindrical lock pin is in line contact with the two rollers 101, and a gap of 0.3-0.6mm is left between the lock pin and the rollers 101, so that the effect of limiting the degree of freedom of lateral movement (Y direction) of the lock pin only, but not limiting the degree of freedom of vertical rotation (Z direction) of the lock pin around the vertical axis is achieved. And this gap is the tolerance allowed by the switch positioning. Therefore, the turnout trolley locking device has good adaptability to beam deformation and beam end corner, and avoids the conditions of no locking and large additional stress.

In summary, when the aspect ratio of the turnout bridge 20 is large, the turnout trolley locking device of the present application may be used, when the bridge is laterally deformed under the condition of being stressed, and when the bridge end generates a certain angle, the gap reserved between the lock pin and the roller is precisely calculated, so that the gap is within the tolerance range of turnout positioning, the lateral position of the turnout can be limited, the vertical rotation degree of freedom is released, no additional stress caused by deformation is generated, and the device has good bridge deformation adaptability.

The traditional medium-low speed magnetic levitation turnout trolley is arranged separately from the locking device, when the whole group of turnouts are locked, the trolley is not directly locked, potential safety hazards of trolley wheel rolling possibly exist, and meanwhile, the problems of vibration, noise and the like of the trolley can be generated. The set of trolley locking device locks the turnout by directly locking the trolley, so that the safety is higher.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the above description are directional or positional relationships as indicated based on the drawings, merely to facilitate description of the embodiments of the present disclosure and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus are not to be construed as limiting the embodiments of the present disclosure.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the presently disclosed embodiments, the terms "mounted," "connected," "secured," and the like are to be construed broadly, as well as being either fixedly connected, detachably connected, or integrally formed, unless otherwise specifically indicated and defined; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In the presently disclosed embodiments, unless expressly stated and limited otherwise, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (8)

1. A railroad switch trolley locking apparatus, comprising:

the ground locking device is arranged on the ground;

a connection part provided on the dolly;

the turnout locking device is arranged on a turnout, and comprises a mounting part and a moving part which are connected, wherein the mounting part is fixedly connected with the turnout, and the moving part is connected with the ground locking device through the connecting part so as to lock the turnout and the trolley;

wherein, the platform truck with switch fixed connection.

2. The railroad switch trolley locking apparatus of claim 1 wherein the ground locking apparatus is a lock pin box.

3. The railroad switch trolley locking apparatus of claim 1 wherein the moving section includes a moving member and a locking member fixedly connected, the moving member driving the locking member to move and locking the locking member with the connecting section and the ground locking apparatus.

4. The railroad switch car lock of claim 3, wherein the moving member is an electric push rod, the locking member is a lock pin, and the mounting portion is a push rod seat.

5. The railroad switch car locking apparatus of claim 4, wherein said connection is a through hole, said through hole being formed in said car.

6. The railroad switch trolley locking apparatus of claim 5 wherein two lock pin guide seats are further provided on the trolley, the lock pin guide seats being disposed at both ends of the through hole and adapted to the through hole.

7. The switch car lock according to any one of claims 1-6, wherein the switch is a magnetic levitation switch having a switch beam aspect ratio greater than 7.5.

8. A switch trolley locking apparatus as claimed in any one of claims 1 to 6, wherein the cross beam of the trolley is fixedly connected to the switch beam of the switch.