CN204080651U - A kind of Diamond-Shape Form Traveler main couple walking system for road and bridge construction - Google Patents

Abstract

The utility model discloses a rhombus hanging basket main truss running system for road and bridge construction, which is mainly composed of a jack (1), a hydraulic oil cylinder (2), a running track (3) and a limit switch (4). (1), the hydraulic cylinder (2) is horizontally fixed on the running track (3), the bottom of the jack (1) is fixed on the support (5) by bolts, and one end of the hydraulic cylinder (2) is fixed on the top of the jack (1). The bit switch (4) is located at the end of the running track (3). The system uses a jack as the power device of the traveling system, which reduces the workload generated by using the guide chain to drive, and installs a limit switch, which can limit the traveling displacement of the traveling system and improve the safety of the system operation.

Description

A main truss running system of rhombus hanging basket used in road and bridge construction

technical field

The utility model relates to the field of road and bridge construction, in particular to a rhombus-shaped hanging basket main truss running system for road and bridge construction. the

Background technique

Prestressed concrete continuous girder bridges and continuous steel bridges generally have large spans and cross rivers and valleys, and are mainly constructed by cantilever casting method. The traditional hanging basket uses the longitudinal prestressed finish-rolled threaded steel bar of the beam body as the anchor system. When the length of the 0# block is short, the hanging basket should be installed in a dislocation. , and the running of the hanging basket adopts the anchoring form of the anti-buckle track. During the position conversion and running process, it is often easy to cause safety accidents such as overturning due to improper operation and defects of the hanging basket system itself. the

Utility model content

The purpose of the utility model is to provide a rhombus hanging basket main truss running system for road and bridge construction. The system uses a jack as the power device of the traveling system, which reduces the workload caused by the use of the guide chain, and installs a limit switch, which can limit the traveling displacement of the traveling system and improve the safety of the system operation. the

The utility model is realized through the following technical solutions:

A main truss traveling system of a rhombus hanging basket used for road and bridge construction, mainly composed of a jack, a hydraulic cylinder, a traveling track and a limit switch, the jack and the hydraulic cylinder are horizontally fixed on the traveling track, and the bottom of the jack is fixed on the support by bolts On the seat, after the hanging basket is in place, the rear node of the truss is anchored on the track steel sleeper with Ф32 fine-rolled rebar, and the force borne by the rear end of the hanging basket is transmitted to the beam body, so that the buckle wheel of the support does not bear the force, and one end of the hydraulic cylinder It is fixed on the top of the jack, and the limit switch is located at the end of the running track. A switch handle is installed on the limit switch. The tail of the walking track is fixed on the main truss through an anchoring device. A rear anchor wheel is arranged at the tail of the running track, and the rear anchor wheel forms a sliding surface with the lower edge of the top plate of the sliding track. After the tensioning of the prestressed tendons in the 0# section is completed, the hanging basket is released to run the axis of the track, the track pad beam is installed, and the track pad beam is leveled with cement mortar. The spacing of the main trusses shall be leveled and padded. Strictly control the center distance between the tracks to be consistent with the drawings. The track installation should be straight, the top surface of the track should be kept horizontal, and the height difference of the track should not be greater than 5mm. During the construction process, the truss runs on the running track, and the track is welded with two I-beams to form a type II section, which is laid symmetrically under the two trusses on the top surface of the box girder. Connection, the front support is padded with a PTFE slide plate, so that it can slide along the stainless steel plate on the track; the rear support is buckled on the upper edge of the track, and the function is to roll along the lower edge of the track with the reverse buckle wheel, and walk on the bottom plate of the track Anchored with vertical prestressed tendons.

Further, in order to better realize the utility model, the jack is a YC75-100 long-stroke jack. the

Compared with the prior art, the utility model has the beneficial effects that: the system uses a jack as the power device of the traveling system, which reduces the workload driven by the guide chain, and is equipped with a limit switch, which can control the traveling displacement of the traveling system. Limits to improve the security of system operation. the

Description of drawings

Figure 1 is a schematic diagram of the system structure. the

Among them: 1—jack; 2—hydraulic cylinder; 3—traveling track; 4—limit switch; 5—support; 6—switch handle; 7—anchor device; 8—rear anchor wheel. the

Detailed ways

The utility model will be further described in detail below in conjunction with the examples, but the implementation of the utility model is not limited thereto. the

Example 1:

As shown in Figure 1, a diamond-shaped hanging basket main truss running system for road and bridge construction is mainly composed of a jack 1, a hydraulic cylinder 2, a running track 3 and a limit switch 4, and the jack 1 and the hydraulic cylinder 2 are horizontally fixed on the running On the track 3, the bottom of the jack 1 is fixed on the support 5 by bolts. After the hanging basket is in place, the rear node of the truss is anchored on the track steel sleeper with Ф32 fine-rolled rebar, and the force borne by the rear end of the hanging basket is transmitted to the beam body. Do not allow the bearing 5 to be stressed, one end of the hydraulic cylinder 2 is fixed on the top of the jack 1, and the limit switch 4 is located at the tail of the running track 3 . A switch handle 5 is installed on the limit switch 4 . The tail part of the walking track 3 is fixed on the main truss through the anchoring device 6 . The trailing track 3 tail is provided with a rear anchor wheel, and the rear anchor wheel forms a sliding surface with the lower edge of the top plate of the sliding track. Jack 1 selects YC75-100 long stroke jack.

Before construction, after the tensioning of the prestressed tendons in the 0# section is completed, release the axis of the running track of the hanging basket, install the track pad beam, level it with cement mortar under the track pad beam, and accurately set the distance between the two tracks in one set and the two sets of tracks for the running track Spacing, ensure the spacing of the main trusses, and make sure that they are leveled and padded. Strictly control the center distance between the tracks to be consistent with the drawings. The track installation should be straight, the top surface of the track should be kept horizontal, and the height difference of the track should not be greater than 5mm. During the construction process, the truss runs on the running track, and the track is welded with two I-beams to form a type II section, which is laid symmetrically under the two trusses on the top surface of the box girder. Connection, the front support is padded with a PTFE slide plate, so that it can slide along the stainless steel plate on the track; the rear support is buckled on the upper edge of the track, and the function is to roll along the lower edge of the track with the reverse buckle wheel, and walk on the bottom plate of the track Anchored with vertical prestressed tendons. the

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model. the

Claims (5)

1. the Diamond-Shape Form Traveler main couple walking system for road and bridge construction, it is characterized in that: form primarily of jack (1), hydraulic jack (2), walking rails (3) and limit switch (4), described jack (1), hydraulic jack (2) are horizontally fixed on walking rails (3), jack (1) bottom is bolted on bearing (5), hydraulic jack (2) one end is fixed on jack (1) top, and limit switch (4) is positioned at walking rails (3) afterbody.

2. a kind of Diamond-Shape Form Traveler main couple walking system for road and bridge construction according to claim 1, is characterized in that: described limit switch (4) is provided with switch handle (6).

3. a kind of Diamond-Shape Form Traveler main couple walking system for road and bridge construction according to claim 1, is characterized in that: described walking rails (3) afterbody is fixed on main couple by anchor device (7).

4. a kind of Diamond-Shape Form Traveler main couple walking system for road and bridge construction according to claim 1, is characterized in that: described walking rails (3) afterbody is provided with rear anchor wheel (8), and rear anchor wheel (8) forms slide surface with walking rails (3) top board lower edge.

5. a kind of Diamond-Shape Form Traveler main couple walking system for road and bridge construction according to claim 1, is characterized in that: YC75-100 Long travel jack selected by described jack (1).