Track plate displacement monitoring device

Abstract

A track plate displacement monitoring device comprises a vertical displacement monitoring device and a horizontal displacement monitoring device, the vertical displacement monitoring device and the horizontal displacement monitoring device each comprise a supporting and fixing unit separated from a track plate, and the supporting and fixing units are connected with a vertical displacement monitoring unit and a horizontal displacement monitoring unit. The vertical displacement monitoring unit is provided with a vertical displacement measuring head, the horizontal displacement monitoring unit is provided with a horizontal displacement measuring head, the vertical displacement measuring head is in vertical contact with the upper surface of a rail bearing table on a rail plate, and the horizontal displacement measuring head is in vertical contact with the side face of the rail plate. Contact type monitoring equipment is adopted to monitor the vertical displacement of a rail bearing table and the transverse displacement of a track plate, the monitoring precision can be guaranteed, the displacement offset of the whole construction operation process of the track plate can be continuously monitored in real time, and the position of a displacement monitoring point can be flexibly adjusted according to needs; and the application range of track plate displacement monitoring is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of ballastless track construction, in particular to a track plate displacement monitoring device. Background Art

[0002] When laying ballastless track, self-compacting concrete is used to cast the cavity between the track plate 1 and the base plate 101 ( Figure 1 shaded area), such as Figure 1 As shown, the track plate 1 is a prefabricated part as a whole, wherein the rail support 11 on the track plate 1 is cast in one piece. The rails are laid on the rail support 11. Since the ballastless track has strict control over the position deviation of the rails, when laying the track plate 1, the position deviation of the track plate 1 and the rail support 11 is required to be within the range of technical standards. The base plate 101 needs to be cast in advance under the track plate 1, and the track plate 1 is placed after the base plate 101 is cast. During the pouring, as the amount of self-compacting concrete grouting increases, a certain floating effect will be produced on the track plate 1, resulting in an upward vertical displacement of the track plate 1. After the pouring is completed, the floating effect weakens during the concrete solidification stage, and the track plate 1 will produce a downward vertical displacement. During the construction process, the disturbance of the grouting operation and the hydration heat during the solidification period will also cause the track plate 1 to have a vertical and lateral displacement as a whole, and ultimately cause the position of the rail support 11 to shift. There are generally multiple rail supports 11 on the track plate 1. Any deviation of the rail support 11 at any position will result in substandard rail laying. Therefore, the displacement of the rail support 11 needs to be monitored during the track plate construction. The displacement data obtained in this process can not only provide a reference for the control of the pouring speed of the self-compacting concrete, but also provide important data support for the subsequent design of the track plate deviation control device.

[0003] Through searching, technical documents on track plate displacement monitoring have been disclosed in the prior art. For example, the utility model patent with publication number "CN212925633U" and name "track plate displacement monitoring and control system for ballastless track construction" is disclosed. A track plate displacement monitoring and control system for ballastless track construction is disclosed, which includes a concrete overflow pressure regulating device, and the concrete overflow pressure regulating device includes a sleeve and a pressure regulating pipe; the pressure regulating pipe can be slidably sleeved on the sleeve, the upper end of the pressure regulating pipe is open, and an overflow port is opened on the side wall of the pressure regulating pipe. The comparative document can control the grouting amount according to the offset of the track plate during the pouring of self-compacting concrete, thereby controlling the floating deformation of the track plate. However, the prior art solution does not specifically monitor the vertical displacement of the rail support platform, so the solution cannot solve the vertical displacement monitoring of the rail support platform. At the same time, the above technical solution only monitors the displacement of the track plate during pouring. After the pouring is completed, the self-compacting concrete will have a certain displacement change under the action of hydration heat and in the solidification stage, which is not considered in the prior art solution.

[0004] For example, the utility model patent with the publication number "CN211522692U" and the name "High-speed Railway Track Plate Structural Displacement Correction Monitoring Device". A high-speed railway track plate structural displacement correction monitoring device is disclosed, including a target device, a laser energy ranging device and a computer acquisition and processing device; the target device includes a receiver, a downlink track, a display and a digital camera, the receiver is provided with a resolution unit and a CCD sensor, the receiver is installed on the side of the downlink track, and the receiver is connected to the display; the laser energy ranging device includes multiple groups of sensors, lasers and uplink tracks, the laser is installed on the side of the uplink track and the laser and the receiver are arranged correspondingly. This prior art solution uses laser ranging to monitor the displacement of the track plate, which is feasible, but it cannot obtain data from multiple displacement monitoring points of the track plate in real time. In addition, the laser ranging cannot be blocked, and due to the complex construction site environment, it cannot be guaranteed that the monitoring environment meets the requirements.

[0005] For example, the utility model patent with the publication number "CN207597175U" and the name "A dynamic displacement monitoring device for ballastless track slabs". It relates to a dynamic displacement monitoring device for ballastless track slabs, belonging to the field of displacement monitoring technology. A dynamic displacement monitoring device for ballastless track slabs, including a fixed base, with bolt holes on the fixed base, fixed to the track support layer or base plate by bolts; the fixed bracket is stepped and installed on the fixed base, a triangular vertical support platform is installed on the side of the top of the fixed bracket, and a flat horizontal support platform is installed on the middle level of the fixed bracket; the vertical support platform and the horizontal support platform are both provided with bolt holes, and tie rod displacement sensors are respectively fixed by bolts; the end of the tie rod of the tie rod displacement sensor is connected to a magnetic base, and the two tie rod displacement sensors are respectively obtained by adsorbing two magnetic bases in different directions on the iron contact plates on the top and side surfaces of the track slab. The comparative document also cannot perform vertical displacement monitoring for the track support platform, and the setting of its fixed base cannot flexibly adjust the position of the displacement monitoring point. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a track plate displacement monitoring device, comprising a vertical displacement monitoring device and a horizontal displacement monitoring device, wherein the vertical displacement monitoring device and the horizontal displacement monitoring device both comprise a supporting and fixing unit separated from the track plate, the vertical displacement monitoring unit and the horizontal displacement monitoring unit being connected to the supporting and fixing unit, the vertical displacement monitoring unit comprising a vertical displacement probe, the horizontal displacement monitoring unit comprising a horizontal displacement probe, the vertical displacement probe being in vertical contact with the upper surface of a rail support platform on the track plate, and the horizontal displacement probe being in vertical contact with the side surface of the track plate; when the rail support platform generates a vertical displacement, the vertical displacement probe is driven to extend and retract to obtain the vertical displacement of the rail support platform, and when the side surface of the track plate generates a horizontal displacement, the horizontal displacement probe is driven to extend and retract to obtain the horizontal displacement of the track plate.

[0007] Furthermore, the vertical displacement monitoring unit is a vertical micrometer, and the horizontal displacement monitoring unit is a horizontal micrometer, and both the horizontal micrometer and the vertical micrometer are connected to the supporting and fixing unit.

[0008] Furthermore, the vertical displacement monitoring device and the horizontal displacement monitoring device share a supporting and fixing unit, which includes a supporting and fixing base and a supporting arm. The supporting arm and the supporting and fixing base are fixedly connected and extend horizontally above the rail support platform. The supporting arm is connected to the horizontal micrometer and the vertical micrometer.

[0009] Furthermore, the vertical displacement monitoring device and the horizontal displacement monitoring device have independent supporting and fixing units, and each group of supporting and fixing units includes a supporting and fixing base and a supporting arm. The supporting arm and the supporting and fixing base are fixedly connected and extend horizontally above the rail support platform, and the supporting arm is connected to a horizontal micrometer or a vertical micrometer.

[0010] Alternatively, two movable arms are connected to the supporting arm, one end of movable arm one clamps a vertical micrometer, and one end of movable arm two clamps a horizontal micrometer. Movable arm one can be universally rotated and locked to hold the vertical micrometer in vertical contact with the upper surface of the rail support platform on the track plate, and movable arm two can be universally rotated and locked to hold the horizontal micrometer in vertical contact with the side of the track plate.

[0011] Furthermore, each set of support arms is connected to a movable arm, wherein movable arm one clamps a vertical micrometer at one end, movable arm two clamps a horizontal micrometer at one end, movable arm one can be universally rotated and locked to hold the vertical micrometer in vertical contact with the upper surface of the rail support platform on the track plate, and movable arm two can be universally rotated and locked to hold the horizontal micrometer in vertical contact with the side of the track plate.

[0012] Furthermore, movable arm one and movable arm two both include an extension section and a clamping section; one end of the extension section is connected to the support arm, and the other end is connected to the clamping section via a universal ball head; one end of the clamping section clamps and fixes a vertical micrometer or a horizontal micrometer.

[0013] Furthermore, the support arm is connected to the support fixing base through two vertical support columns fixedly connected thereto.

[0014] Furthermore, the supporting and fixing base is a cement pier arranged on the outer side of the track plate.

[0015] Furthermore, the supporting fixed base is a supporting base fixedly connected to the side mold of the track plate.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects: the present invention uses contact monitoring equipment to monitor the vertical displacement of the rail support platform and the lateral displacement of the track plate. The use of contact monitoring equipment to monitor the vertical displacement of the rail support platform and the lateral displacement of the track plate can not only ensure the monitoring accuracy, but also can conduct real-time and continuous monitoring of the displacement offset of the entire process of track plate construction, and can also flexibly adjust the position of the displacement monitoring point as needed, expanding the scope of application of track plate displacement monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : Schematic diagram of track slab pouring construction;

[0018] Figure 2 : Side view of the displacement monitoring device and the schematic diagram of the track plate structure;

[0019] Figure 3 : Front view of the displacement monitoring device and the schematic diagram of the track plate structure;

[0020] Figure 4 : Side view of the structural schematic diagram of the displacement monitoring device. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 2~Figure 4 As shown, this embodiment takes the P5600 type CRTSⅢ type track plate as an example to illustrate the displacement monitoring device. A track plate displacement monitoring device includes a vertical displacement monitoring device and a horizontal displacement monitoring device, wherein the vertical displacement monitoring device and the horizontal displacement monitoring device both include a support and fixing unit separated from the track plate 1, and the vertical displacement monitoring unit and the horizontal displacement monitoring unit are connected to the support and fixing unit, wherein the vertical displacement monitoring unit has a vertical displacement probe, and the horizontal displacement monitoring unit has a horizontal displacement probe, wherein the vertical displacement probe is in vertical contact with the upper surface of the rail support platform 11 on the track plate 1, and the horizontal displacement probe is in vertical contact with the side surface 12 of the track plate; when the rail support platform 11 generates vertical displacement, the vertical displacement probe is driven to extend and retract to obtain the vertical displacement of the rail support platform 11, and when the side surface 12 of the track plate generates horizontal displacement, the horizontal displacement probe is driven to extend and retract to obtain the horizontal displacement of the track plate 1.

[0023] In this embodiment, a contact-type horizontal displacement monitoring unit and a vertical displacement monitoring unit are used to sense the vertical displacement of the rail support platform and the horizontal displacement of the track plate in real time with high accuracy. Because the rails are laid on the track plate 1, that is, on the rail support platform, any vertical displacement exceeding the standard of the rail support platform 11 at any part will have an adverse effect on the subsequent construction. Therefore, the vertical displacement monitoring is directly performed on the rail support platform 11. The lateral displacement collects the overall horizontal displacement of the track plate 1. Since the effect of the self-compacting concrete pouring process on the side of the track plate can be offset, and the horizontal displacement of the track plate is relatively large due to the constraints of the fine-tuning device, the horizontal displacement deviation of the track plate is small, thereby simplifying the number of horizontal monitoring points of the track plate.

[0024] The vertical displacement monitoring unit is a vertical micrometer 2, and the horizontal displacement monitoring unit is a horizontal micrometer 3. Both the horizontal micrometer 3 and the vertical micrometer 2 are connected to the support fixing unit. The probe of the micrometer 2 can contact the surface of the rail support platform 11 or the track plate 1 to sense and monitor its displacement deviation in real time.

[0025] A typical method is to share a supporting and fixing unit, wherein the vertical displacement monitoring device and the horizontal displacement monitoring device share a supporting and fixing unit, and the supporting and fixing unit includes a supporting and fixing base 4 and a supporting arm 5. The supporting arm 5 is fixedly connected to the supporting and fixing base 4 and extends horizontally to above the rail support platform 11, and the supporting arm 5 is connected to the horizontal micrometer 3 and the vertical micrometer 2.

[0026] The other adopts independent monitoring. The vertical displacement monitoring device and the horizontal displacement monitoring device have independent supporting and fixing units. Each group of supporting and fixing units includes a supporting and fixing base 4 and a supporting arm 5. The supporting arm 5 and the supporting and fixing base 4 are fixedly connected and extend horizontally to the top of the rail support platform 11. The supporting arm 5 is connected to the horizontal micrometer 3 or the vertical micrometer 2.

[0027] When the supporting and fixing unit is shared, two movable arms are connected to the supporting arm 5, one end of the movable arm 16 clamps the vertical micrometer 2, and one end of the movable arm 27 clamps the horizontal micrometer 3. The movable arm 16 can be universally rotated and locked to hold the vertical micrometer 2 and the upper surface of the rail support platform 11 on the track plate 1 vertically in contact, and the movable arm 27 can be universally rotated and locked to hold the horizontal micrometer 3 and the side surface 12 of the track plate vertically in contact. The movable arm 16 and the movable arm 27 can be universally rotated and locked, which not only ensures the stable clamping of the micrometer, but also allows the flexible adjustment of the monitoring position point without moving the entire monitoring device.

[0028] When monitoring independently, the vertical and horizontal monitoring units have similar structures. Each set of support arms 5 is connected to a movable arm, wherein one end of the movable arm 1 6 clamps the vertical micrometer 2, and one end of the movable arm 2 7 clamps the horizontal micrometer 3. The movable arm 1 6 can be universally rotated and locked to hold the vertical micrometer 2 in vertical contact with the upper surface of the rail support platform 11 on the track plate 1, and the movable arm 2 7 can be universally rotated and locked to hold the horizontal micrometer 3 in vertical contact with the side surface 12 of the track plate.

[0029] The movable arm 1 6 and the movable arm 2 7 both include an extension section 61 and a clamping section 62; one end of the extension section 61 is connected to the support arm 5, and the other end is connected to the clamping section 62 through a universal ball head, and one end of the clamping section 62 clamps and fixes the vertical micrometer 2 or the horizontal micrometer 3. The movable arm 1 6 and the movable arm 2 7 adopt a two-section design, wherein the extension section 61 and the support arm 5 are preferably hinged, and their horizontal extension distance can be adjusted, and the extension section 61 and the clamping section 62 can be universally rotated and locked, and the matching design of this structure can flexibly adjust the position of the final micrometer contact point.

[0030] The support arm 5 is connected to the support fixing base 4 through two vertical support columns 51 fixedly connected thereto. The support column 51 has better supporting strength for components such as the micrometer at the far end of the support arm 5, and the micrometer can be adjusted to a larger distance.

[0031] The support and fixed base 4 needs to be separated from the base plate 101, and its position setting method can be adopted in the following manner: the support and fixed base 4 is a cement pier set on the outside of the track plate 1. Or the support and fixed base 4 is a support seat fixedly connected to the side mold of the track plate, or a single square steel is directly set on the ground with expansion bolts and connected by bolts to prevent the entire monitoring device from shaking due to uneven ground or external force.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A track plate displacement monitoring device, characterized in that: The invention comprises a vertical displacement monitoring device and a horizontal displacement monitoring device, wherein the vertical displacement monitoring device and the horizontal displacement monitoring device both comprise a support fixing unit separated from a track plate (1), the support fixing unit being connected to the vertical displacement monitoring unit and the horizontal displacement monitoring unit, the vertical displacement monitoring unit comprising a vertical displacement probe, and the horizontal displacement monitoring unit comprising a horizontal displacement probe, the vertical displacement probe being in vertical contact with the upper surface of a rail support platform (11) on the track plate (1), and the horizontal displacement probe being in vertical contact with the side surface (12) of the track plate; when the rail support platform (11) generates vertical displacement, the vertical displacement probe is driven to extend and retract to obtain the vertical displacement of the rail support platform (11), and when the side surface (12) of the track plate generates horizontal displacement, the horizontal displacement probe is driven to extend and retract to obtain the horizontal displacement of the track plate (1).

2. The track plate displacement monitoring device according to claim 1, characterized in that: The vertical displacement monitoring unit is a vertical micrometer (2), and the horizontal displacement monitoring unit is a horizontal micrometer (3). Both the horizontal micrometer (3) and the vertical micrometer (2) are connected to the supporting fixing unit.

3. The track plate displacement monitoring device according to claim 2, characterized in that: The vertical displacement monitoring device and the horizontal displacement monitoring device share a supporting and fixing unit, the supporting and fixing unit comprising a supporting and fixing base (4) and a supporting arm (5), the supporting arm (5) and the supporting and fixing base (4) are fixedly connected and extend horizontally above the rail support platform (11), and the supporting arm (5) is connected to the horizontal micrometer (3) and the vertical micrometer (2).

4. The track plate displacement monitoring device according to claim 3, characterized in that: The vertical displacement monitoring device and the horizontal displacement monitoring device have independent support and fixing units, each group of support and fixing units comprises a support and fixing base (4) and a support arm (5), the support arm (5) and the support and fixing base (4) are fixedly connected and extend horizontally above the rail support platform (11), and the support arm (5) is connected to a horizontal micrometer (3) or a vertical micrometer (2).

5. The track plate displacement monitoring device according to claim 3, characterized in that: Two movable arms are connected to the support arm (5), one end of the movable arm 1 (6) clamps the vertical micrometer (2), and one end of the movable arm 2 (7) clamps the horizontal micrometer (3). The movable arm 1 (6) can be universally rotated and locked to hold the vertical micrometer (2) in vertical contact with the upper surface of the rail support platform (11) on the track plate (1), and the movable arm 2 (7) can be universally rotated and locked to hold the horizontal micrometer (3) in vertical contact with the side surface (12) of the track plate.

6. The track plate displacement monitoring device according to claim 4, characterized in that: Each group of support arms (5) is connected to a movable arm, wherein one end of the movable arm 1 (6) clamps the vertical micrometer (2), and one end of the movable arm 2 (7) clamps the horizontal micrometer (3). The movable arm 1 (6) can be universally rotated and locked to hold the vertical micrometer (2) in vertical contact with the upper surface of the rail support platform (11) on the track plate (1), and the movable arm 2 (7) can be universally rotated and locked to hold the horizontal micrometer (3) in vertical contact with the side surface (12) of the track plate.

7. The track plate displacement monitoring device according to claim 5 or 6, characterized in that: The movable arm 1 (6) and the movable arm 2 (7) both comprise an extension section (61) and a clamping section (62); one end of the extension section (61) is connected to the support arm (5), and the other end is connected to the clamping section (62) via a universal ball head; one end of the clamping section (62) clamps and fixes a vertical micrometer (2) or a horizontal micrometer (3).

8. The track plate displacement monitoring device according to claim 7, characterized in that: The support arm (5) is connected to the support fixing base (4) via two vertical support columns (51) fixedly connected thereto.

9. The track plate displacement monitoring device according to claim 8, characterized in that: The supporting fixed base (4) is a cement pier arranged outside the track plate (1).

10. The track plate displacement monitoring device according to claim 8, characterized in that: The supporting fixed base (4) is a supporting base fixedly connected to the side mold of the track plate.

Images