Enhanced sleeve positioning device for ballastless track bridge of high-speed railway

Abstract

The utility model discloses an enhanced sleeve positioning device for a ballastless track bridge of a high-speed railway, which relates to the technical field of railway bridge construction and comprises a bearing frame main beam and a transverse straining beam used for forming the bearing frame main beam into an integral frame, and positioning steel plates are arranged at the bottom of the bearing frame main beam and the bottom of the transverse straining beam. The positioning steel plate is vertically provided with a positioning screw rod used for installing the reinforced sleeve, and the position of the positioning screw rod on the positioning steel plate is adjustable; according to the actually-measured construction elevation of a construction site, the plane position and the vertical elevation of the reinforced sleeve are guaranteed by adjusting the horizontal position and the height position of the positioning screw rod on the positioning steel plate, the positioning screw rod can be fixed after the plane position and the vertical elevation of the reinforced sleeve are adjusted, and after beam body concrete pouring is completed, the reinforced sleeve can be fixed. The reinforced sleeve is separated from the device, so that the device can be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of railway bridge construction, in particular to a reinforced sleeve positioning device for a high-speed railway ballastless track bridge. Background Art

[0002] During the construction of high-speed railway ballastless track bridges, it is necessary to pre-embed reinforced sleeves within the range of the track plate on the beam surface to ensure the connection quality between the track base plate and the bridge. The specification requires extremely high installation accuracy for the pre-embedded sleeves, requiring a horizontal position error of ±2cm, an elevation error of 0 to -5mm, and a vertical error of ≤2mm. The pre-embedded accuracy of the reinforced sleeves is an important factor that directly determines the progress of the subsequent track base plate construction. Traditional construction processes usually use wire pulling for positioning. Due to the poor accuracy of wire pulling positioning and the large fluctuations in point positions after disturbance, during actual on-site operations, workers directly weld the reinforced sleeves to the beam reinforcement according to the points located by the wire pulling, making it difficult to ensure that the plane position and vertical elevation of the reinforced sleeve installation meet the specification requirements. The embedded accuracy of the horizontal position and vertical elevation of the enhanced sleeve directly affects the quality of the subsequent beam surface milling construction. When the installation deviation is large, the sleeve will conflict with the milling machine cutter head. First, the cutter head will be damaged and the replacement cost will be high; second, the milling machine cutter head will cut and damage the enhanced sleeve, causing the sleeve to fail; third, in order to avoid damage to the cutter head during operation, the cutter head position is manually raised, resulting in part of the beam surface being unable to be milled, so manual chiseling of the area is used to affect the construction progress. Summary of the Invention

[0003] In view of this, the purpose of the present utility model is to provide a high-speed railway ballastless track bridge enhanced sleeve positioning device.

[0004] The utility model provides a high-speed railway ballastless track bridge enhanced sleeve positioning device adopts the following technical solutions:

[0005] A reinforced sleeve positioning device for a high-speed railway ballastless track bridge includes a load-bearing frame main beam and a transverse tie beam used to form an integral frame with the load-bearing frame main beam. The bottoms of the load-bearing frame main beam and the transverse tie beam are both provided with positioning steel plates. Positioning screws for installing reinforced sleeves are vertically provided on the upper edges of the positioning steel plates, and the position of the positioning screws on the positioning steel plates is adjustable.

[0006] Furthermore, the positioning steel plate is provided with an elongated hole for installing the positioning screw, the top end of the positioning screw passes through the elongated hole, and the reinforced sleeve is installed at the bottom end of the positioning screw.

[0007] Furthermore, the enhanced sleeve is installed on the bottom end of the positioning screw through a threaded connection.

[0008] Furthermore, locking nuts are provided on the upper and lower sides of the positioning steel plate on the positioning screw.

[0009] Furthermore, the ends of the main beams of the load-bearing frame are provided with flange connection plates for mutual connection.

[0010] Furthermore, the main beam of the load-bearing frame is provided with lifting lugs.

[0011] To sum up, the present invention has at least one of the following beneficial effects: according to the actual construction elevation measured at the construction site, the horizontal position and height position of the positioning screw on the positioning steel plate are adjusted to ensure the plane position and vertical elevation of the reinforced sleeve. After the plane position and vertical elevation of the reinforced sleeve are adjusted, the positioning screw can be fixed. After the concrete pouring of the beam body is completed, the device can be circulated and reused by separating the reinforced sleeve from the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A longitudinal sectional view of an embodiment of the present utility model;

[0013] Figure 2 A plan view of an embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of the installation of the enhanced sleeve according to an embodiment of the utility model.

[0015] Description of reference numerals:

[0016] 1. Main beam of the load-bearing frame; 11. Lifting lug; 2. Transverse tie beam; 3. Positioning steel plate; 31. Long hole; 4. Positioning screw; 41. Locking nut; 5. Reinforced sleeve; 6. Flange connection plate. DETAILED DESCRIPTION

[0017] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0018] The following is combined with Figure 1-3 The utility model is described in further detail.

[0019] The embodiment of the utility model discloses a high-speed railway ballastless track bridge reinforced sleeve positioning device. Figure 1-Figure 3The reinforced sleeve positioning device of the ballastless track bridge of the high-speed railway includes a load-bearing frame main beam 1 and a transverse tie beam 2 for forming the load-bearing frame main beam 1 into an overall frame. The spacing of the transverse tie beams 2 is arranged according to the longitudinal spacing of the pre-embedded reinforced embedded sleeves 5. The transverse tie beams 2 and the load-bearing frame main beam 1 are welded to form an overall frame to ensure the overall stability of the device. The bottoms of the load-bearing frame main beam 1 and the transverse tie beam 2 are both provided with positioning steel plates 3. The positioning steel plates 3 are vertically provided with positioning screws 4 for installing the reinforced sleeves 5. The position of the positioning screws 4 on the positioning steel plates 3 is adjustable. According to the actual construction elevation measured at the construction site, the horizontal position and height position of the positioning screws 4 on the positioning steel plates 3 are adjusted to ensure the plane position and vertical elevation of the reinforced sleeve 5. After the plane position and vertical elevation of the reinforced sleeve 5 are adjusted, the positioning screws 4 can be fixed. After the concrete pouring of the beam body is completed, the device can be circulated and reused by disengaging the reinforced sleeve 5 from the positioning screws 4.

[0020] In this embodiment, the positioning steel plate 3 is provided with a long hole 31 for installing the positioning screw 4. The top end of the positioning screw 4 passes through the long hole 31, and the reinforced sleeve 5 is installed at the bottom end of the positioning screw 4. By moving the positioning screw 4 in the long hole 31, the horizontal position of the positioning screw 4 can be adjusted. After the position is appropriate, the positioning screw 4 is fixed on the positioning steel plate 3.

[0021] In this embodiment, the enhanced sleeve 5 is installed on the bottom end of the positioning screw 4 through a threaded connection, which makes it easy to fix the enhanced sleeve 5 on the positioning screw 4 and remove it from the positioning screw 4.

[0022] In this embodiment, locking nuts 41 are provided on the upper and lower sides of the positioning steel plate 3 on the positioning screw 4. Loosening the locking nuts 41 can adjust the vertical height position of the positioning screw 4, and the positioning screw 4 can be fixed on the positioning steel plate 3 through the locking nuts 41.

[0023] In this embodiment, the end of the load-bearing frame main beam 1 is provided with a flange connection plate 6 for mutual connection. The load-bearing frame main beam 1 can be determined according to the length of the track plate or the length of the steel. The flange connection plate 6 is welded with steel plates and connected at the four corners by bolts.

[0024] In this embodiment, a lifting lug 11 is provided on the main beam 1 of the load-bearing frame. After the plane position and vertical elevation of the reinforced sleeve 5 are adjusted into place, the positioning and installation work is completed. After the concrete pouring of the beam body is completed, the positioning screw 4 and the fixing nut 41 on the positioning screw 4 are screwed in reverse to separate the embedded reinforced sleeve 5 from the device, and the device is transported to the next construction area for recycling through the lifting lug 11.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A high-speed railway ballastless track bridge reinforced sleeve positioning device, characterized by: The invention comprises a load-bearing frame main beam (1) and a transverse tie beam (2) for forming the load-bearing frame main beam (1) into an integral frame. The bottoms of the load-bearing frame main beam (1) and the transverse tie beam (2) are both provided with positioning steel plates (3). Positioning screws (4) for installing reinforced sleeves (5) are vertically provided on the positioning steel plates (3). The position of the positioning screws (4) on the positioning steel plates (3) is adjustable.

2. The enhanced sleeve positioning device for high-speed railway ballastless track bridge according to claim 1 is characterized in that: The positioning steel plate (3) is provided with an elongated hole (31) for installing the positioning screw (4), the top end of the positioning screw (4) passes through the elongated hole (31), and the enhanced sleeve (5) is installed at the bottom end of the positioning screw (4).

3. The enhanced sleeve positioning device for high-speed railway ballastless track bridge according to claim 2 is characterized in that: The enhanced sleeve (5) is mounted on the bottom end of the positioning screw (4) through a threaded connection.

4. The enhanced sleeve positioning device for high-speed railway ballastless track bridge according to claim 1 is characterized in that: Locking nuts (41) are provided on the upper and lower sides of the positioning screw (4) and the positioning steel plate (3).

5. The enhanced sleeve positioning device for high-speed railway ballastless track bridge according to claim 1 is characterized in that: The ends of the load-bearing frame main beams (1) are provided with flange connection plates (6) for mutual connection.

6. The enhanced sleeve positioning device for high-speed railway ballastless track bridge according to claim 1 is characterized in that: The load-bearing frame main beam (1) is provided with a lifting lug (11).

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