Bridge tensioning self-walking equipment

Abstract

The utility model provides bridge tensioning self-walking equipment which comprises a movable chassis, a plurality of vertically arranged stand columns are fixed to the top of a cargo compartment bottom plate of the movable chassis, the stand columns are fixedly connected through a plurality of longitudinally arranged longitudinal rods, and a plurality of transversely arranged transverse rods are fixed to the tops of the stand columns. The stand columns, the longitudinal rods and the transverse rods jointly form an integral support structure. A pulley assembly is arranged in the integral support structure, a traction cable is wound around the pulley assembly, one end of the traction cable is connected with a tensioning jack, and the other end of the traction cable is connected with a chain block. The tensioning jack is connected with the tensioning machine through a hydraulic pipeline and used for providing tension power and monitoring tensioning data in real time. The device is suitable for bridge superstructure prestress tensioning construction, and the bridge prestress tensioning efficiency can be improved on the premise that safety and quality are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction equipment, in particular to a self-propelled bridge tensioning equipment. Background Art

[0002] Traditional bridge tensioning construction requires manual or crane movement of through-hole jacks, a complex process that poses significant safety risks and impacts construction progress. Because the tensioning equipment lacks its own power, it requires frequent disassembly and assembly or external force assistance. This leads to complex procedures, difficulty in positioning, high construction costs, and low efficiency. Utility Model Content

[0003] The purpose of the present utility model is to provide a self-propelled bridge tensioning device in response to the above-mentioned problems. This device is suitable for the prestressed tensioning construction of the bridge superstructure, and can improve the efficiency of the prestressed tensioning of the bridge under the premise of ensuring safety and quality. This device makes full use of its mobility, and moves the tensioning device to the vicinity of the prefabricated beam on a crawler vehicle, moves the tensioning jack to the vicinity of the steel bundle to be tensioned, connects the steel bundle to the tensioning jack placed on the L-shaped hanger, controls the L-shaped hanger, and completes the tensioning of the steel bundle. This device reduces the need for manual or crane-based movement of the tensioning jack, thereby reducing construction safety risks.

[0004] In order to achieve the above technical features, the purpose of the utility model is achieved as follows: a bridge tensioning self-propelled device, including a mobile chassis, a plurality of vertically arranged columns are fixed on the top of the cargo compartment floor of the mobile chassis, the columns are fixedly connected by a plurality of longitudinally arranged longitudinal rods, a plurality of transversely arranged cross rods are fixed on the top of the columns, and the columns, longitudinal rods and cross rods together constitute an integral support structure;

[0005] A pulley assembly is provided inside the integral support structure, a traction rope is wound around the pulley assembly, one end of the traction rope is connected to the tensioning jack, and the other end of the traction rope is connected to the hand chain hoist;

[0006] The tensioning jack is connected to the tensioning machine through a hydraulic pipeline to provide tension power and monitor tensioning data in real time.

[0007] The mobile chassis adopts a small track agricultural vehicle or engineering vehicle chassis.

[0008] The pulley assembly includes a first pulley shaft, which is rotatably mounted on the lower portion of the integral support structure, and a bottom pulley is mounted on the first pulley shaft;

[0009] Also included is a second pulley shaft, the second pulley shaft being rotatably mounted on the upper portion of the integral support structure, the second pulley shaft being mounted with a top pulley;

[0010] The traction rope is passed around the bottom of the bottom pulley and then around the top of the top pulley in sequence.

[0011] The hand chain hoist is hung on the integral support structure through a hook.

[0012] The traction rope is fixedly connected to the tensioning jack through an L-shaped connecting rod.

[0013] An engine for providing walking power is installed on the mobile chassis.

[0014] The tensioning machine is an intelligent tensioning machine and can accurately display the tensioning force.

[0015] The tensioning jack adopts a through-type tensioning jack.

[0016] The utility model has the following beneficial effects:

[0017] 1. The equipment of this utility model is suitable for the prestressing tensioning construction of bridge superstructures, and can improve the efficiency of prestressing tensioning of bridges under the premise of ensuring safety and quality. This equipment makes full use of its mobility. By moving the tensioning equipment to the vicinity of the prefabricated beam on a crawler vehicle, the tensioning jack is moved to the vicinity of the steel bundle to be tensioned, and the steel bundle is connected to the tensioning jack placed on the L-shaped hanger, the L-shaped hanger is controlled to complete the tensioning of the steel bundle. This equipment reduces the need for manual or crane-based movement of the tensioning jack, thereby reducing construction safety risks.

[0018] 2. The utility model adopts the self-propelled bridge tensioning equipment to ensure the construction efficiency, speed up the construction progress, improve the safety of bridge tensioning construction, and reduce the cost of manpower and equipment use.

[0019] 3. The utility model uses a tensioning machine at the same time, which greatly improves the tensioning efficiency and data accuracy, realizes automation and monitoring, and effectively ensures the safety and stability of the subsequent bridge when it is put into use.

[0020] 4. The utility model ensures its structural strength and stability by adopting an integral bracket structure, thereby being able to stably support the pulley assembly and the traction system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 It is the main view of the utility model.

[0023] Figure 2 It is a side view of the present utility model.

[0024] In the figure: mobile chassis 1, cargo compartment floor 2, hydraulic pipeline 3, tensioning jack 4, L-shaped connecting rod 5, first pulley shaft 6, bottom pulley 7, column 8, traction rope 9, top pulley 10, second pulley shaft 11, longitudinal rod 12, cross bar 13, hook 14, hand hoist 15, reinforcement column 16, tensioning machine 17. DETAILED DESCRIPTION

[0025] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0026] See also Figure 1-2 A self-propelled bridge tensioning device includes a mobile chassis 1, a plurality of vertically arranged columns 8 are fixed on the top of the cargo compartment floor 2 of the mobile chassis 1, and the columns 8 are fixedly connected by a plurality of longitudinally arranged longitudinal rods 12. A plurality of transversely arranged cross rods 13 are fixed on the top of the columns 8, and the columns 8, longitudinal rods 12 and cross rods 13 together constitute an integral support structure; a pulley assembly is provided inside the integral support structure, and a traction rope 9 is wound around the pulley assembly, one end of the traction rope 9 is connected to the tensioning jack 4, and the other end of the traction rope 9 is connected to the hand winch 15; the tensioning jack 4 is connected to the tensioning machine 17 through a hydraulic pipeline 3, which is used to provide tension power and monitor the tensioning data in real time. The present utility model is suitable for prestressing and tensioning bridge superstructures, and can improve the efficiency of prestressing bridges while ensuring safety and quality. This equipment fully utilizes its mobility, moving the tensioning equipment near the precast beam using a tracked vehicle, moving the tensioning jack near the steel bundle to be tensioned, connecting the steel bundle with the tensioning jack placed on the L-shaped hanger, and controlling the L-shaped hanger to complete the tensioning of the steel bundle. This equipment reduces the need for manual or crane movement of the tensioning jack, thereby reducing construction safety risks. During specific use, the mobile chassis 1 carrying the tensioning jack 4 and the tensioning machine 17 are moved to the position where tensioning is required, and the position of the tensioning jack 4 is adjusted using the hand winch 15 and the traction rope 9 to facilitate the installation of the steel bundle to be tensioned.

[0027] Furthermore, the mobile chassis 1 is a small crawler agricultural vehicle or engineering vehicle chassis. By adopting the mobile chassis 1, it is convenient to carry and move the equipment required in the entire tensioning process, replacing the traditional human handling operation process and improving work efficiency.

[0028] Furthermore, the pulley assembly includes a first pulley shaft 6, which is rotatably mounted on the lower portion of the integral support structure and on which a bottom pulley 7 is mounted; and a second pulley shaft 11, which is rotatably mounted on the upper portion of the integral support structure and on which a top pulley 10 is mounted. The traction cable 9 passes sequentially around the bottom of the bottom pulley 7 and then around the top of the top pulley 10. The pulley assembly enables smooth guidance of the traction cable 9, facilitating the lifting of the tensioning jack 4 via the traction cable 9 and thereby adjusting the position of the tensioning jack 4. During operation, the traction cable 9 is driven by a hand winch 15, which in turn drives the corresponding L-shaped connecting rod 5, which in turn drives the tensioning jack 4.

[0029] Furthermore, the chain hoist 15 is hooked on the integral support structure via a hook 14. The chain hoist 15 can be used to provide power for the lifting and lowering adjustment of the tensioning jack 4. The hook 14 facilitates the arrangement and installation of the chain hoist 15.

[0030] Furthermore, the traction rope 9 is fixedly connected to the tensioning jack 4 via an L-shaped connecting rod 5. The L-shaped connecting rod 5 can realize reliable connection and installation of the tensioning jack 4.

[0031] Furthermore, an engine for providing walking power is installed on the mobile chassis 1.

[0032] Furthermore, the bottom of the crossbar 13 is supported by a reinforcement column 16. The reinforcement column 16 enhances the support structure strength and stability of the crossbar 13.

[0033] The working principle of this utility model is as follows:

[0034] Step 1: Move the mobile chassis 1 to the working position when performing bridge tensioning operation;

[0035] Step 2: Operate the hand chain hoist 15 to drive the traction rope 9, which drives the corresponding L-shaped connecting rod 5, and then the L-shaped connecting rod 5 drives the tensioning jack 4 to move up and down, and adjust the left and right positions of the tensioning jack 4, move the jack clamp to the vicinity of the steel bundle to be tensioned, and pass the anchor through the through-jack to connect it to the steel bundle to be tensioned;

[0036] Step 3: Connect the steel bundle to the tensioning jack 4 set in the jack fixture, start the tensioning machine 17, and complete the tensioning of the steel bundle;

[0037] Step 4. After completing the tensioning of this section, record the display data of the tensioning machine 17, disconnect the anchor, retract the tensioning jack 4 and the L-shaped connecting rod 5, turn off the tensioning machine 17, retreat the mobile chassis 1 to a safe position, and move the mobile chassis 1 to another tensioning working surface for the next working cycle.

Claims

1. A self-propelled bridge tensioning device, characterized in that: The mobile chassis (1) comprises a plurality of vertically arranged upright posts (8) fixed on the top of a cargo compartment floor (2) of the mobile chassis (1), the upright posts (8) being fixedly connected by a plurality of longitudinally arranged longitudinal rods (12), the upright posts (8) being fixedly connected to each other by a plurality of transversely arranged transverse rods (13) fixed on the top of the upright posts (8), and the upright posts (8), the longitudinal rods (12) and the transverse rods (13) together forming an integral support structure; A pulley assembly is provided inside the integral support structure, a traction rope (9) is wound around the pulley assembly, one end of the traction rope (9) is connected to the tensioning jack (4), and the other end of the traction rope (9) is connected to the hand chain hoist (15); The tensioning jack (4) is connected to the tensioning machine (17) via a hydraulic pipeline (3) and is used to provide tensioning power and monitor tensioning data in real time.

2. The self-propelled bridge tensioning device according to claim 1, characterized in that: The mobile chassis (1) is a small tracked agricultural vehicle or an engineering vehicle chassis.

3. The self-propelled bridge tensioning device according to claim 1, characterized in that: The pulley assembly comprises a first pulley shaft (6), the first pulley shaft (6) is rotatably mounted on the lower part of the integral support structure, and a bottom pulley (7) is mounted on the first pulley shaft (6); It also includes a second pulley shaft (11), the second pulley shaft (11) is rotatably mounted on the upper part of the integral support structure, and a top pulley (10) is mounted on the second pulley shaft (11); The traction rope (9) is passed around the bottom of the bottom pulley (7) and then passed around the top of the top pulley (10).

4. The self-propelled bridge tensioning device according to claim 1, characterized in that: The hand chain hoist (15) is hooked on the integral support structure via a hook (14).

5. The self-propelled bridge tensioning device according to claim 1, characterized in that: The traction rope (9) is fixedly connected to the tensioning jack (4) via an L-shaped connecting rod (5).

6. The self-propelled bridge tensioning device according to claim 1, characterized in that: An engine for providing driving power is installed on the mobile chassis (1).

7. The self-propelled bridge tensioning device according to claim 1, characterized in that: The tensioning machine (17) is an intelligent tensioning machine and can accurately display the tensioning force.

8. The self-propelled bridge tensioning device according to claim 1, characterized in that: The tensioning jack (4) is a through-type tensioning jack.

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