CN219280518U

CN219280518U - Prestress tensioning integrated trolley

Info

Publication number: CN219280518U
Application number: CN202320005365.8U
Authority: CN
Inventors: 邹宇; 刘超; 季申增; 向正松; 李金阳
Original assignee: Sichuan Road and Bridge (Group) Co Ltd
Current assignee: Sichuan Road and Bridge (Group) Co Ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-06-30
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a prestress tensioning integrated trolley, which relates to the technical field of prestress tensioning in engineering bridges and comprises the following components: the truss is formed by connecting a plurality of straight rods; the hoisting unit is arranged at the upper part of the truss, and the operating platform is arranged at the middle part of the truss; the walking mechanism is a crawler-type self-propelled vehicle and is arranged at the lower part of the truss; the power unit can provide energy for the tensioning integrated trolley; the detection mechanism is prestress tension detection equipment and is arranged on the outer side of the truss and above the travelling mechanism. The utility model solves the technical problems of complex and heavy tensioning process of the prestressed steel bundles, realizes the improvement of the tensioning efficiency of the prestressed steel bundles, and accelerates the technical effect of the bridge construction progress.

Description

Prestress tensioning integrated trolley

Technical Field

The utility model relates to the technical field of prestress tensioning in engineering bridges, in particular to a prestress tensioning integrated trolley.

Background

After pouring, the prestress bridge body needs to apply prestress to the steel strands in the bridge body so as to improve the bending resistance and rigidity of the bridge, prolong the service life of the bridge and improve the safety of the bridge.

When the bridge member is prestressed and tensioned at the present stage, devices such as a jack, a tensioning pump and stress detection are used. The devices are heavy, hoisting equipment such as a crane and a gantry crane is needed to be matched for auxiliary tensioning in the tensioning process, after one beam body is tensioned, equipment is required to be removed and transferred to the next beam for tensioning, the whole process is complex and heavy, more constructors are put into, the prestress tensioning efficiency of the beam body is low, and the bridge construction period is not facilitated to be accelerated.

Disclosure of Invention

In order to solve the above problems, the present utility model provides a prestress tensioning integrated trolley, comprising:

the truss is formed by connecting a plurality of straight rods;

hoist and mount unit, hoist and mount unit sets up on truss upper portion, include: the electric hoist comprises a fixed rail, a sliding part, an electric hoist, a hook and a sunshade, wherein the sliding rail is in sliding connection with the fixed rail;

the operation platform is arranged in the middle of the truss and comprises a first operation surface, a second operation surface, a telescopic bracket and a guardrail;

the first operation surface is in sliding connection with the second operation surface;

the walking mechanism is a crawler-type self-propelled vehicle and is arranged at the lower part of the truss;

the power unit can provide power for the tensioning integrated trolley;

the detection mechanism is prestress tension detection equipment and is arranged on the outer side of the truss and above the travelling mechanism.

Optionally, each straight rod of the truss is connected in a triangular shape.

Optionally, the truss is a three sided support structure open on one side.

Optionally, the truss is connected with the hoisting unit to form an inverted L-shaped structure.

Optionally, the first operation surface and the second operation surface are overlapped up and down, and the first operation surface can slide out away from the truss direction relative to the second operation surface.

Optionally, the telescopic bracket is arranged below the protruding end of the first operation surface.

Optionally, the guard rail is fixedly connected with the first operation surface and is arranged at two sides of the first operation surface.

By adopting the technical scheme, the utility model has the following technical effects:

according to the utility model, the hoisting device is arranged on the crawler-type self-propelled vehicle, so that the process of simplifying the prestress tensioning procedure is realized, the dismounting and transferring time of prestress tensioning equipment is reduced in the steel bundle prestress tensioning process, the bridge prestress tensioning efficiency is improved, the tensioning quality is ensured, and the tensioning stress can be detected and recorded at any time.

Drawings

FIG. 1 is a schematic structural view of a prestress tensioning integrated trolley of the utility model;

fig. 2 is a schematic structural diagram of a prestress tensioning integrated trolley (another view angle) according to the present utility model.

Wherein the reference numerals have the following meanings:

1. truss; 11. diagonal bracing;

2. a hoisting unit; 21. a fixed rail; 22. a sliding rail; 23. a slider; 24. an electric hoist; 25. a hook; 26. sunshade shed;

3. an operating platform; 31. a first operation surface; 32. a second operation surface; 33. a telescopic bracket; 34. guard bars;

4. a walking mechanism;

5. a power unit;

6. and a detection mechanism.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a detailed description of embodiments of the present utility model will be provided below, together with the accompanying drawings, wherein it is evident that the embodiments described are only some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1-2, the utility model provides a prestress tensioning integrated trolley, which can simplify the process steps of a prestress tensioning procedure, accelerate the equipment transferring speed and improve the prestress tensioning efficiency in practical application, and comprises a truss 1, a hoisting unit 2 arranged at the upper part of the truss 1, an operation platform 3 arranged in the middle of the truss 1, a traveling mechanism 4 arranged at the lower part of the truss 1, wherein the operation platform 3, the truss 1 and the traveling mechanism 4 jointly enclose a power unit 5 and a detection mechanism 6 arranged at the outer side of the truss 1.

Further, the truss 1 is a three-sided support structure formed by connecting a plurality of straight rods, the opening side of the truss 1 is used for facilitating operation of constructors, the truss 1 is arranged on the travelling mechanism 4, the truss 1 comprises inclined struts 11, one end of each inclined strut 11 is arranged on the truss 1, and the other end of each inclined strut 11 is arranged on the lifting unit 2 to form a triangular stable structure.

Preferably, the straight bars of the truss 1 are cross-connected for enhancing the overall stability of the truss 1.

Further, the hoisting unit 2 includes a fixed rail 21, a sliding rail 22 slidably connected to the fixed rail 21, a sliding member 23 slidably connected to the sliding rail 22, an electric hoist 24 fixedly connected to the sliding member 23, a hook 25 provided on the electric hoist 24, and a sunshade 26 provided on the fixed rail 21. The fixed track 21 sets up on truss 1 upper portion, fixed track 21 is by two track parallel arrangement, forms the structure of falling "L" shape with truss 1, bracing 11 consolidates the structure of falling "L" that forms, slip track 22 sliding connection is in fixed track 21 below, slip track 22 can follow fixed track 21 longitudinal direction and remove, slider 23 and slip track 22 sliding connection, slider 23 can be in on the slip track 22 along the lateral direction removal, electric hoist 24 is connected in slider 23 below, electric hoist 24 below is equipped with lifting hook 25, lifting hook 25 is used for hoisting the jack that uses when stretching.

Preferably, the sunshade 26 is made of a corrosion-resistant material, and can play a role in rain protection and sunshade.

Specifically, in the actual operation process, the tensioning jack is fixed on the lifting hook 25, the operation sliding rail 22 longitudinally moves to the beam end tensioning position on the fixed rail 21, then the sliding piece 23 which is in sliding connection with the sliding rail 22 is controlled to move in the transverse direction, and then the jack on the lifting hook 25 is adjusted to be at a proper height through the electric hoist 24 fixed on the sliding piece 23 for tensioning.

Further, the operation platform 3 is disposed in the middle of the truss 1, and includes a first operation surface 31, a second operation surface 32 vertically overlapped with the first operation surface 31, a telescopic bracket 33 disposed at the lower portion of the first operation surface 31, and guardrails 34 disposed at two sides of the first operation surface 31. The operation platform 3 is a platform capable of being used for operating by constructors, the first operation surface 31 is arranged above the second operation surface 32 in an overlapping mode, the first operation surface 31 is slidably connected with the second operation surface 32, specifically, the first operation surface 31 can slide out to the direction close to the beam end through sliding connection, the sliding first operation surface 31 and the second operation surface 32 jointly form the operation platform 3 with a larger operation area, a telescopic bracket 33 is arranged below the first operation surface 31, the telescopic bracket 33 can freely adjust the extension length, the telescopic bracket 33 plays a role in supporting the first operation surface 31 in an overhanging state on the ground when the first operation surface 31 slides out to the direction close to the beam end, the guardrails 34 are fixedly arranged on two sides of the first operation surface 31, and the guardrails 34 can be simultaneously pulled out along with the first operation surface 31 so as to protect the safety of the operators on the first operation surface 31.

Further, the traveling mechanism 4 is a crawler-type self-propelled vehicle, the traveling mechanism 4 is arranged below the truss 1, and the traveling mechanism 4 can freely travel through manual operation.

Further, the power unit 5 is surrounded by the operation platform 3, the truss 1 and the travelling mechanism 4, a power supply matched with the tensioning integrated trolley is arranged in the power unit 5, and the power supply is used for providing power for working of the travelling mechanism 4 and the hoisting unit 2.

Further, the detecting mechanism 6 is a tension pre-stress detecting device, and the detecting mechanism 6 is used for monitoring and recording the stress change condition in the pre-stress tension process. The detection mechanism 6 is arranged on one side of the truss 1 and above the travelling mechanism 4.

Specifically, in the use, operating personnel walk the stretch-draw integration platform truck to the roof beam end that needs the stretch-draw through controlling running gear 4, use electric hoist 24 and lifting hook 25 to lift the jack that needs the stretch-draw, control slip track 22 and slider 23 adjust in vertical, horizontal direction, again control electric hoist 24 adjust to suitable stretch-draw height with the jack on the lifting hook 25, after starting stretch-draw work, the stretch-draw process uses detection mechanism 6 to detect and record the stretch-draw stress, after accomplishing the prestressing force stretch-draw, withdraw the jack through hoist and mount unit 2 to operating platform 3, control running gear 4 walk to the next roof beam end that needs, continue to develop the roof beam end prestressing force stretch-draw work. Preferably, if the operation space is insufficient or the distance is insufficient, the first operation surface 31 may be slid out in a direction approaching the beam end for increasing the use area of the operation platform 3. The utility model can save the dismounting time of the tensioning equipment, can quickly walk to the beam end to be tensioned at the next section, and accelerates the prestress tensioning work of the beam body.

Finally, it should be noted that: the embodiment of the utility model is disclosed only as a preferred embodiment of the utility model, and is only used for illustrating the technical scheme of the utility model, but not limiting the technical scheme; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. The utility model provides a prestressing force tensioning integration platform truck which characterized in that includes:

the truss is formed by connecting a plurality of straight rods;

the power unit is used for providing power for the tensioning integrated trolley;

the detection mechanism is prestress tension detection equipment, is arranged on the outer side of the truss and is located above the travelling mechanism.

2. A prestressed tensioning integrated trolley according to claim 1, wherein the straight bars of the truss are cross-connected.

3. The prestress tensioning integrated trolley of claim 1, wherein the truss is a three-sided support structure open on one side.

4. The prestress tensioning integrated trolley according to claim 1, wherein the truss is connected with the hoisting unit to form an inverted-L-shaped structure.

5. The prestress tensioning integrated trolley according to claim 1, wherein the first operating surface and the second operating surface are vertically overlapped, and the first operating surface can slide out in a direction away from the truss relative to the second operating surface.

6. The prestress tensioning integrated trolley of claim 4, wherein the telescopic bracket is disposed below the extended end of the first operating surface.

7. The prestress tensioning integrated trolley of claim 4, wherein the guard rail is fixedly connected with the first operating surface and is arranged on two sides of the first operating surface.