Ballastless track slab limiting device and construction method

Abstract

The invention provides a ballastless track slab limiting device and a construction method, relates to the field of ballastless track construction, and aims to solve the problem that a limiting structure adopted by a current ballastless track slab is difficult to meet different sections and limiting requirements. The supporting legs and the pressing screws are combined for use, the supporting pieces can laterally limit the track plate through the abutting pieces matched with the supporting pieces, and the cross beam on the upper portion is of an integral bridge structure, makes contact with the track plate and is associated with the supporting legs to resist floating of the track plate; the tail end of the pressing screw rod is connected with the pin shaft to be rotationally matched with the supporting leg to adjust the inclination angle of the pressing piece, the pressing piece is adaptive to track plates of different road sections, and the universality and applicability of the pressing piece are improved.

Description

Technical Field

[0001] The invention relates to the field of ballastless track construction, and in particular to a ballastless track track plate limiting device and a construction method. Background Art

[0002] Ballastless track has the advantages of good stability, long service life, good durability, and less maintenance, and is widely used in the construction of high-speed railways. When laying ballastless track, self-compacting concrete is poured into the cavity through the through holes on the track plate. During this process, the concrete will generate buoyancy on the track plate, causing the geometric dimensions of the track plate to change, affecting the laying accuracy of the ballastless track. Therefore, during the construction of ballastless track, it is necessary to set a limit device on the track plate to overcome the buoyancy of the self-compacting concrete, prevent the track plate from floating or shifting sideways, and ensure the high accuracy of ballastless track construction.

[0003] A Chinese patent (publication number CN 108004855 B, publication date 202180508) discloses a clamping and limiting device and method for a slab ballastless track structure, which adopts a "Z"-shaped clamping and limiting steel frame, first adjusts the horizontal limiting bolts, and clamps in a horizontal direction, so that the wear-resistant rubber of the inner spherical hinged clamping head is close to the side of the ballastless track plate, and the corresponding clamping and limiting devices on both sides of the ballastless track plate simultaneously and synchronously perform horizontal limiting clamping; then adjust the vertical limiting bolts, so that the wear-resistant rubber of the inner spherical hinged clamping head is close to the upper surface of the ballastless track plate, and the corresponding clamping and limiting devices on both sides of the ballastless track plate simultaneously and synchronously perform vertical clamping. However, this device cannot effectively distribute the buoyancy of the track plate, and can only limit the upward arch of the track plate but cannot prevent its lateral displacement, which has great limitations. In the process of resisting the floating of the track plate, the unbalanced force of the applied limiting structure can easily induce lateral displacement problems, and the left and right limiting structures share the same vertical fixings, which cannot adapt to the height changes of the track plate. They can only be used in straight sections and are difficult to apply to curved super-elevated sections, resulting in that they cannot be used universally in different sections. Summary of the invention

[0004] The purpose of the present invention is to provide a ballastless track track plate limiting device and construction method in view of the defects of the prior art. The support member is mounted on a crossbeam and fixed from one side of the track plate, and is used in combination with a support leg and a clamping screw. The support member can use its matching abutment member to achieve lateral limitation of the track plate. The upper crossbeam is an integral bridge structure, which contacts the track plate and is associated with the support leg to resist the floating of the track plate. The pin shaft at the end of the clamping screw is rotated to cooperate with the support leg to achieve adjustable inclination of the clamping screw, which is suitable for track plates of different sections and improves its versatility and applicability.

[0005] The first object of the present invention is to provide a ballastless track track plate limiting device, which adopts the following scheme:

[0006] include:

[0007] The crossbeam is provided with a limiting hole;

[0008] The support member is provided with a slot for the crossbeam to pass through, so that the support member is mounted on both ends of the crossbeam. The support member is connected to the crossbeam through a fixing pin. The support member is also provided with a track limit plate and a template limit plate. The track limit plate cooperates with the track abutment member, and the template limit plate cooperates with the template abutment member.

[0009] The leg has one end used for connecting to the base plate and the other end is rotatably matched with a pin shaft, the pin shaft is connected with a clamping screw, and the end of the clamping screw away from the pin shaft passes through a preset clamping hole on the beam and then matches a clamping nut.

[0010] Furthermore, the support member is equipped with a limiting bolt, and the end of the limiting bolt extends into the slot to abut against the crossbeam.

[0011] Furthermore, the side plates of the support members on both sides of the crossbeam are provided with restraint holes, and the restraint holes and the limit holes cooperate with the fixing pins to be connected.

[0012] Furthermore, a track limiting portion is formed between the track abutting members of the support members at both ends of the beam, and a template abutting portion is formed between the template abutting members of the support members at both ends of the beam. One end of the track abutting member abutting the track plate can move relative to the track limiting plate to maintain abutment against the track plate, and one end of the template abutting member abutting the template can move relative to the template limiting plate to maintain abutment against the template.

[0013] Furthermore, the track limiting plates and the template limiting plates are located outside the slotted range of the support member, the track limiting plates and the template limiting plates are staggered, and the track limiting plates and the template limiting plates are respectively provided on both sides of the support member.

[0014] Furthermore, the end of the leg is provided with an end head, and a plurality of pins are rotatably engaged on the end head, and at least one pin shaft on the end head of the same leg cooperates with the compression screw to connect the cross beam.

[0015] Furthermore, the support leg is inserted into the slot, one end of the tightening screw is connected to the pin, and the other end passes through the slot and is connected to the crossbeam.

[0016] Furthermore, the crossbeam is provided with a plurality of limiting holes and a plurality of pressing holes.

[0017] The second object of the present invention is to provide a construction method of the ballastless track track plate limiting device as described in the first object, comprising:

[0018] The crossbeam is placed on the top surface of the track plate through its entire length, with support members mounted on both ends of the crossbeam, the clamping screw is located on the side of the track plate, and the legs are connected to the base plate;

[0019] One end of the clamping screw is connected to the pin on the leg, and the other end passes through the preset clamping hole on the beam and fits the clamping nut, and the clamping nut abuts against the top surface of the beam; after the track abutment is installed on the track limit plate, one end abuts against the track plate; after the template abutment is installed on the template limit plate, one end abuts against the template;

[0020] Adjust the clamping nut, track abutment and template abutment to clamp the track plate and maintain the vertical position of the track plate, abut the track plate and the template to maintain the lateral position of the track plate and the template.

[0021] Furthermore, when the ballastless track is in a straight section, the crossbeam is arranged horizontally; when the ballastless track is in a curved superelevation section, the clamping screw is adjusted to make the crossbeam tilted and parallel to the top surface of the track plate, maintaining the clamping screw and the support member to constrain the track plate.

[0022] Compared with the prior art, the present invention has the following advantages and positive effects:

[0023] In view of the problem that the current limiting structure used in the track plate of ballastless track is difficult to meet the needs of different locations and limiting requirements, a crossbeam is used to mount the support member, which is fixed from one side of the track plate and used in combination with a support leg and a clamping screw. The support member can use its matching abutment member to achieve lateral limiting of the track plate. The upper crossbeam is an integral bridge structure, which contacts the track plate and is associated with the support leg to resist the floating of the track plate. The pin shaft at the end of the clamping screw is rotated to cooperate with the support leg to achieve adjustable inclination of the clamping member, which can adapt to track plates of different sections and improve its versatility and applicability.

[0024] The track plate and template are respectively abutted and limited, and can be adjusted independently. The independent adjustment feature allows the limit device to adapt to more different working conditions. Track plates and templates in different areas may have differences in specifications, installation requirements, etc. The device can meet the use requirements in various complex situations by independently adjusting the abutment limit of the track plate and template.

[0025] The legs and supports are separated, so that the vertical height control and the horizontal lateral position control are separated, which improves the operational flexibility. The vertical height control and the horizontal lateral position control are separated, so that the operator can operate more targetedly when installing and adjusting the limit device. In the actual construction process, the adjustment of the vertical height and the horizontal position often requires fine operation separately. After the separation of the two, mutual interference is avoided. The operator can complete the vertical and horizontal adjustments separately in a certain order, which improves the convenience and efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 It is a schematic diagram of a ballastless track slab limiting device in one or more embodiments of the present invention.

[0028] Figure 2 It is a schematic diagram of the adaptation of the ballastless track slab limiting device to an inclined section in one or more embodiments of the present invention.

[0029] Figure 3 Schematic diagram of a support member in one or more embodiments of the present invention.

[0030] Figure 4 It is a schematic side view of a support member in one or more embodiments of the present invention.

[0031] Figure 5 Schematic diagram of a support leg in one or more embodiments of the present invention.

[0032] Figure 6 It is a schematic side view of a support leg in one or more embodiments of the present invention.

[0033] Among them, 1. crossbeam; 2. first clamping screw; 3. support member; 4. support leg; 5. fixing bolt; 6. limiting hole; 7. limiting bolt; 8. second clamping screw; 9. track plate; 10. self-compacting concrete; 11. base plate; 12. track limiting plate; 13. template limiting plate; 14. fixing pin; 15. constraint hole; 16. track abutment; 17. template abutment; 18. end; 19. pin shaft; 20. screw hole; 21. slot. DETAILED DESCRIPTION

[0034] Example 1

[0035] In a typical embodiment of the present invention, Figure 1-Figure 6 As shown, a ballastless track track plate limiting device is provided.

[0036] At present, the limiting structure of the ballastless track is prone to lateral displacement due to the unbalanced force of the limiting structure in the process of resisting the floating of the track plate 9. The left and right limiting structures share the same vertical fixing parts, which cannot adapt to the height change of the track plate 9 and can only be used in straight sections. It is difficult to be applied to the super-elevated section of the curve. At the same time, it cannot adapt to the different widths of the base plates of the roadbed, bridges, and tunnels, which makes it incompatible with different sections. Based on this, this embodiment provides a ballastless track track plate limiting device, which is intended to effectively resist the floating of the track plate 9 by contacting the crossbeam 1 and associating the support leg 4, and reasonably distribute the buoyancy. The track limiting plate 12 and the template limiting plate 13 on the support member 3 cooperate with the corresponding abutment to achieve lateral limitation of the track plate 9 and solve the lateral displacement problem. Through the rotation cooperation of the support leg 4 with the clamping screw and the pin 19, the inclination angle of the clamping member can be adjusted, so as to adapt to track plates 9 of different heights and solve the height adaptation problem. The limiting width is adjusted by the limiting hole 6 of the support member 3 to solve the base plate width adaptation problem.

[0037] Next, combine Figure 1-Figure 6 The ballastless track slab limit device is analyzed and explained in detail. Figure 1 The ballastless track track plate limiting device mainly includes a crossbeam 1, a support member 3 and a leg 4. The crossbeam 1 is provided with a limiting hole 6, which cooperates with other components to provide an overall connection structure for the device. At the same time, it serves as an overall bridge structure above, contacts the track plate 9 and is associated with the leg 4 to resist the track plate 9 from floating up.

[0038] The support member 3 is provided with a slot 21 inside, through which the crossbeam 1 can pass, so that it can be mounted on both ends of the crossbeam 1 and connected to the crossbeam 1 through a fixing pin 14. The track limit plate 12 and the template limit plate 13 arranged thereon respectively cooperate with the track abutment 16 and the template abutment 17 to realize the lateral limitation of the track plate 9. One end of the leg 4 is connected to the base plate 11 to provide a foundation for the entire device, and the other end is rotatably matched with the pin 19, which is in turn connected to the clamping screw. The clamping screw passes through the clamping hole on the crossbeam 1 and cooperates with the clamping nut. By rotating the clamping nut, the position of the clamping screw can be adjusted, and then the end of the clamping screw is connected to the pin 19 to rotate and cooperate with the leg 4 to realize the adjustable inclination angle of the clamping screw, so as to adapt to track plates 9 of different heights and different inclination states.

[0039] like Figure 1 and Figure 2As shown, a limiting bolt 7 is provided on the support member 3, and its end is inserted into the slot 21 to abut against the cross beam 1. To adjust the relative position of the support member 3 and the cross beam 1, after the cross beam 1 is inserted into the slot 21 of the support member 3, the top plate at the top of the slot 21 of the support member 3 abuts against the cross beam 1, and a support plate for carrying the cross beam 1 is provided. Since the spacing between the top plate and the support plate may deviate from the height of the cross beam 1, a limiting bolt 7 is provided for abutment, so that the moment can be effectively transmitted between the cross beam 1 and the support member 3, and the support member 3 is prevented from sliding randomly on the cross beam 1, thereby enhancing the stability of the overall structure of the device. By tightening the limiting bolt 7, the support member 3 can be more firmly mounted on the cross beam 1, ensuring that the components of the device are tightly connected during use, and better playing the role of limiting the track plate 9.

[0040] like Figure 3 As shown, constraint holes 15 are provided on the side plates of the support members 3 on both sides of the beam 1, which are connected with the limiting holes 6 on the beam 1 in cooperation with the fixing pins 14, thereby increasing the reliability and stability of the connection between the support member 3 and the beam 1. Among them, the limiting bolt 7 is provided with a limiting nut in cooperation with the support member 3, and the limiting nut is fixed to the support member 3 to provide a reaction force for the limiting bolt 7 to abut against the beam 1. After the fixing pin 14 is inserted, it can constrain the position of the support member 3 and the beam 1 in the axial direction of the beam 1. The limiting bolt 7 and the fixing pin 14 are used to form multiple connection points, so that the connection between the support member 3 and the beam 1 is more stable, and can better withstand the force transmitted from the track plate 9, avoiding relative displacement between the support member 3 and the beam 1 when the track plate 9 is subjected to force, thereby ensuring the effective realization of the lateral limiting function.

[0041] like Figure 1 and Figure 4 As shown, a track limiting portion is formed between the track abutting members 16 of the supporting members 3 at both ends of the crossbeam 1, and a template abutting portion is formed between the template abutting members 17. The end of the track abutting member 16 abutting the track plate 9 can move relative to the track limiting plate 12, and the end of the template abutting member 17 abutting the template can move relative to the template limiting plate 13. This design has strong flexibility and adaptability. During use, the track plate 9 may produce slight displacement or deformation due to various factors (such as temperature changes, vibration of engineering vehicles and equipment, etc.). The movable characteristics of the track abutting member 16 and the template abutting member 17 enable them to always maintain close contact with the track plate 9 and the template, thereby continuously and effectively realizing the lateral limiting and positioning of the template.

[0042] The track abutment member 16 and the template abutment member 17 can both be bolts, which cooperate with the nuts preset on the track limiting plate 12 and the template limiting plate 13 to adjust the abutment position.

[0043] Specific, combined Figure 3 and Figure 4The track limit plate 12 and the template limit plate 13 are located outside the slot 21 of the support member 3 and are arranged in a staggered manner. The track limit plate 12 and the template limit plate 13 are respectively arranged on both sides of the support member 3. The limit structure can be arranged more reasonably in a limited space to avoid mutual interference between the components. At the same time, the limit plates are respectively arranged on both sides to limit the track plate 9 and the template from different directions, thereby improving the limit effect and stability.

[0044] The track abutment 16 and the template abutment 17 form a track limiting portion and a template abutment portion, respectively, and they can independently abut and limit with the track plate 9 and the template. The end of the track abutment 16 abutting the track plate 9 can move relative to the track limiting plate 12, and the end of the template abutment 17 abutting the template can move relative to the template limiting plate 13. In practical applications, the device can accurately abut and limit according to the different positions, sizes and states of the track plate 9 and the template. For example, when the track plate 9 and the template have position deviations during installation or produce slight displacements due to external factors (such as temperature changes, vibrations generated by engineering vehicles and equipment, etc.), the track abutment 16 and the template abutment 17 can independently adjust the abutment position, always maintain effective limiting of the track plate 9 and the template, and avoid affecting the stability and safety of the entire track system due to the displacement of the track plate 9 or the template.

[0045] The independent adjustment feature allows the limit device to adapt to more different working conditions. The track plates 9 and templates in different sections may differ in specifications, installation requirements, etc. The device can meet the use requirements in various complex situations by independently adjusting the abutment limit of the track plates 9 and the templates. It solves the lateral deviation problem of the track plate 9 caused by unbalanced force, abuts the template to constrain the position, avoids the problem of mold running during the pouring of concrete, and improves the construction accuracy during the ballastless track laying process. In the super-elevated section of the curve, the positional relationship between the track plate 9 and the template is different from that in the straight section. The independent adjustment function enables the device to be flexibly adjusted for this special situation, ensuring that the track plate 9 and the template can achieve a good limiting effect under different terrains and working conditions, thereby improving the versatility and applicability of the device.

[0046] When there is a problem with one of the track plate 9 or the template and adjustment is required, since the two are respectively abutted and limited and adjusted independently, only the corresponding abutment part needs to be operated, which will not affect the limit state of the other party, reducing the complexity of the operation during maintenance, and reducing maintenance time and workload. At the same time, it avoids the adverse effects of adjusting one party on the other party, reduces maintenance costs, and improves the maintenance efficiency of the entire track system.

[0047] like Figure 5 and Figure 6As shown, the end of the leg 4 is provided with an end 18, and the end 18 is rotatably matched with a plurality of pins 19, and at least one pin 19 on the end 18 of the same leg 4 cooperates with the clamping screw to connect the cross beam 1. The pin 19 is provided with a screw hole 20 in the radial direction, and the screw hole 20 cooperates with the clamping screw. The screw hole 20 can be a threaded hole, and a threaded section that cooperates with the threaded hole can be provided at the end of the clamping screw. The design of multiple pins 19 increases the flexibility and adjustability of the connection between the leg 4 and the cross beam 1. Different pins 19 can be selected to cooperate with the clamping screw according to actual needs to adapt to different heights and inclination angles of the track plate 9, further improving the adaptability of the device to track plates 9 of different sections.

[0048] When multiple pins 19 are provided on a single end 18, each pin 19 can be respectively matched with a corresponding clamping screw. In the present embodiment, two pins 19 are rotatably matched on each end 18, one pin 19 is matched with a first clamping screw 2, and the other pin 19 is matched with a second clamping screw 8.

[0049] The leg 4 is inserted into the slot 21, one end of the clamping screw is connected to the pin 19, and the other end passes through the slot 21 and is connected to the cross beam 1. This structure forms a compact and stable connection system between the leg 4, the pin 19, the clamping screw and the cross beam 1, and reduces the space occupied by the clamping screw and the support 3, so that the clamping screw and the support 3 can respectively establish a connection with the cross beam 1. The leg 4 is inserted into the slot 21 to enhance the overall structural strength of the device, and it is also convenient for the clamping screw to apply pressure to the cross beam 1, thereby better resisting the floating of the track plate 9.

[0050] like Figure 1 and Figure 2 As shown, the cross beam 1 is provided with a plurality of limiting holes 6 and a plurality of clamping holes. The plurality of limiting holes 6 provide more options for the installation of the support member 3, and the position of the support member 3 can be adjusted according to the size and installation requirements of different track plates 9, thereby improving the versatility of the device. The plurality of clamping holes allow the installation position of the clamping screw to be adjusted according to actual conditions, so as to better adapt to the height change and stress condition of the track plate 9, further enhancing the adaptability of the device to track plates 9 of different sections.

[0051] The adjustable structure enables the device to better adapt to various complex track conditions, and can effectively function in roadbeds, bridges, tunnels, straight and curved super-elevated sections; the enhanced connection structure and flexible limiting method improve the limiting effect of the device on the track plate 9, ensuring the safety and stability of the track plate 9 during use.

[0052] It should be pointed out that the support legs 4 and the support members 3 are separated so that the vertical height control and the horizontal balance position control are separated, thereby achieving the technical effect of improving the operational flexibility.

[0053] The first clamping screw 2 and the second clamping screw 8 are mainly responsible for controlling the vertical height. One end of the first clamping screw 2 and the second clamping screw passes through the reserved hole of the beam 1, and the other end is rotatably connected to the end 18 of the end of the leg 4 to cooperate with multiple pins 19. By selecting different pins 19 to cooperate with the clamping screw, the relative position between the leg 4 and the beam 1 can be easily adjusted, thereby achieving precise control of the vertical height of the track plate 9. When faced with track plates 9 with different height requirements, the operator can flexibly adjust the relative position between the leg 4 and the beam 1 according to actual conditions without large-scale disassembly and reinstallation of the entire device. For example, if the height of the track plate 9 is inconsistent during the installation process, the height change of the track plate 9 can be quickly adapted by simply adjusting the cooperation between the pin 19 on the leg 4 and the clamping screw, thereby improving the construction efficiency and the adaptability of the device.

[0054] The support member 3 is mainly used for controlling the horizontal balance position. The support member 3 is mounted on both ends of the beam 1 through the internal slots 21, and is connected to the beam 1 through the fixing pins 14, the limit bolts 7, etc. At the same time, its track limit plate 12 and the template limit plate 13 cooperate with the corresponding abutments to achieve lateral limitation of the track plate 9 and the template. The independent horizontal control structure ensures that the adjustment of the horizontal position of the track plate 9 and the template will not be affected by the vertical height adjustment of the support leg 4. The operator can adjust the support member 3 separately according to the actual horizontal position deviation of the track plate 9 and the template, so as to more accurately control the horizontal position of the track plate 9 and the template, and ensure the straightness and stability of the track system.

[0055] Separating the vertical height control from the horizontal balance position control allows operators to perform operations more specifically when installing and adjusting the limit device. In the actual construction process, the adjustment of the vertical height and horizontal position often requires separate and delicate operations. The separation of the two avoids mutual interference, and the operator can complete the vertical and horizontal adjustments in a certain order, improving the convenience and efficiency of the operation. At the same time, this separation design also reduces the difficulty of operation. Even under complex working conditions, the installation and adjustment of the device can be completed quickly and accurately, ensuring the construction quality and progress of the track system.

[0056] Example 2

[0057] In another typical embodiment of the present invention, Figure 1-Figure 6 As shown, a construction method of a ballastless track track plate limiting device is provided, using the ballastless track track plate limiting device as in Example 1.

[0058] A construction method for a ballastless track track plate limiting device, comprising:

[0059] The cross beam 1 is placed on the top surface of the track plate 9, and the two ends of the cross beam 1 are respectively mounted with support members 3, the tightening screw is located on the side of the track plate 9, and the legs 4 are connected to the base plate 11;

[0060] One end of the clamping screw is connected to the pin 19 on the leg 4, and the other end passes through the preset clamping hole on the beam 1 and cooperates with the clamping nut, and the clamping nut abuts against the top surface of the beam 1; after the track abutment member 16 is installed on the track limit plate 12, one end abuts against the track plate 9; after the template abutment member 17 is installed on the template limit plate 13, one end abuts against the template;

[0061] Adjust the clamping nut, the track abutment 16 and the template abutment 17 to clamp the track plate 9 and maintain the vertical position of the track plate 9, abut the track plate 9 and the template, and maintain the lateral position of the track plate 9 and the template.

[0062] Specific, combined Figure 1-Figure 6 , the construction method of the ballastless track track plate limiting device includes the following detailed steps.

[0063] 1. Initial installation of components

[0064] The crossbeam 1 is placed on the top surface of the track plate 9, the support members 3 are mounted on both ends, the tightening screws are placed on the sides of the track plate 9, and the legs 4 are connected to the base plate 11. The basic framework of the limit device is constructed to ensure that each component is in the correct initial position, creating conditions for subsequent installation and adjustment.

[0065] One end of the clamping screw is connected to the pin 19 of the leg 4, and the other end passes through the clamping hole of the beam 1 and cooperates with the clamping nut, which abuts the top surface of the beam 1. This connection method enables the leg 4, the clamping screw and the beam 1 to form a stable structure, providing support for resisting the floating of the track plate 9.

[0066] The track abutment member 16 is mounted on the track limit plate 12 and abuts against the track plate 9, and the template abutment member 17 is mounted on the template limit plate 13 and abuts against the template. By installing the abutment member, the lateral limit of the track plate 9 and the template is preliminarily achieved.

[0067] 2. Adjust components to achieve limit

[0068] Adjusting the clamping nut, the track abutment 16 and the template abutment 17 can compress the track plate 9 and maintain its vertical position, while abutting the track plate 9 and the template to maintain the horizontal position. Through fine adjustment of each component, the limit device can fully play its role, ensuring that the track plate 9 and the template are effectively fixed in both vertical and horizontal directions, thereby enhancing the stability of the track system.

[0069] 3. Adjustment under different working conditions

[0070] When the ballastless track is in a straight section, the crossbeam 1 is arranged horizontally. This arrangement conforms to the characteristics of the straight section track plate 9, can ensure that the limit device plays a normal role in the straight section, and provides a stable limit support for the track plate 9.

[0071] When in the superelevation section of the curve, adjust the clamping screw to make the crossbeam 1 tilted and parallel to the top surface of the track plate 9 to maintain the constraint on the track plate 9. Considering the special shape of the track plate 9 in the superelevation section of the curve, by adjusting the inclination of the crossbeam 1, the limit device can adapt to different track terrains, improve the versatility and adaptability of the device, and ensure that the track plate 9 can be effectively limited in the superelevation section of the curve.

[0072] When in the roadbed section, the second clamping screw 8 is used, and in the bridge and tunnel sections, the first clamping screw 2 is used. By adjusting the relative distance between the support members 3 at both ends of the beam 1, the limiting device can adapt to the width of the base plate 11 in different sections, thereby improving the versatility and adaptability of the device and ensuring that the roadbed, bridge, and tunnel can also effectively limit the track plate 9.

[0073] Through reasonable component installation and flexible adjustment methods, the ballastless track track plate limiting device can effectively limit the track plate 9 and the template under different working conditions such as the straight section and curved super-elevated section of the roadbed, bridge, and tunnel, thereby improving the stability and reliability of the track system. At the same time, it also reflects the good adaptability of the device under different terrain conditions.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ballastless track track plate limiting device, characterized in that: include: The crossbeam is provided with a limiting hole; The support member is provided with a slot for the crossbeam to pass through, so that the support member is mounted on both ends of the crossbeam. The support member is connected to the crossbeam through a fixing pin. The support member is also provided with a track limit plate and a template limit plate. The track limit plate cooperates with the track abutment member, and the template limit plate cooperates with the template abutment member. The leg has one end used for connecting to the base plate and the other end is rotatably matched with a pin shaft, the pin shaft is connected with a clamping screw, and the end of the clamping screw away from the pin shaft passes through a preset clamping hole on the beam and then matches a clamping nut.

2. The ballastless track slab limiting device according to claim 1, characterized in that: The support member is matched with a limiting bolt, and the end of the limiting bolt is inserted into the slot to abut against the crossbeam.

3. The ballastless track slab limiting device according to claim 1 or 2, characterized in that: Constraint holes are provided on the side plates of the support members on both sides of the cross beam, and the constraint holes and the limit holes cooperate with the fixing pins to be connected.

4. The ballastless track slab limiting device according to claim 1 or 2, characterized in that: A track limiting portion is formed between the track abutting members of the support members at both ends of the beam, and a template abutting portion is formed between the template abutting members of the support members at both ends of the beam. One end of the track abutting member abutting the track plate can move relative to the track limiting plate to maintain abutment against the track plate, and one end of the template abutting member abutting the template can move relative to the template limiting plate to maintain abutment against the template.

5. The ballastless track slab limiting device according to claim 4, characterized in that: The track limiting plate and the template limiting plate are located outside the slotted range of the support member, the track limiting plate and the template limiting plate are staggered, and the track limiting plate and the template limiting plate are respectively arranged on both sides of the support member.

6. The ballastless track slab limiting device according to claim 1, characterized in that: The end of the supporting leg is provided with an end head, and a plurality of pins are rotatably matched on the end head. At least one pin shaft on the end head of the same supporting leg is matched with a compression screw to connect the cross beam.

7. The ballastless track slab limiting device according to claim 1 or 6, characterized in that: The supporting leg is inserted into the slot, one end of the pressing screw is connected to the pin shaft, and the other end is connected to the crossbeam after passing through the slot.

8. The ballastless track slab limiting device according to claim 1, characterized in that: The crossbeam is provided with a plurality of limiting holes and a plurality of pressing holes.

9. A construction method for a ballastless track track plate limiting device, using the ballastless track track plate limiting device as claimed in any one of claims 1 to 8, characterized in that: include: The crossbeam is placed on the top surface of the track plate through its entire length, with support members mounted on both ends of the crossbeam, the clamping screw is located on the side of the track plate, and the legs are connected to the base plate; One end of the clamping screw is connected to the pin on the leg, and the other end passes through the preset clamping hole on the beam and fits the clamping nut, and the clamping nut abuts against the top surface of the beam; after the track abutment is installed on the track limit plate, one end abuts against the track plate; after the template abutment is installed on the template limit plate, one end abuts against the template; Adjust the clamping nut, track abutment and template abutment to clamp the track plate and maintain the vertical position of the track plate, abut the track plate and the template to maintain the lateral position of the track plate and the template.

10. The construction method of the ballastless track slab limiting device according to claim 9, characterized in that: When the ballastless track is in a straight section, the crossbeam is arranged horizontally; when the ballastless track is in a curved superelevation section, the clamping screw is adjusted to make the crossbeam tilted and parallel to the top surface of the track plate, maintaining the clamping screw and the support member's constraint on the track plate.

Images