CN102002913B - Prefabricated T beam transferring trolley - Google Patents

Abstract

The invention relates to building construction equipment, in particular to a prefabricated T-beam omnidirectional sprocket-type beam-moving trolley and a construction method thereof. The beam-moving trolley includes a traveling mechanism, a jacking mechanism installed on the traveling mechanism, and a T-beam clamping device connected to the jacking mechanism for clamping the prefabricated T-beam. The section of the T-beam clamping device is "concave". ", mainly including the joist bottom plate and two trolley brackets symmetrically arranged on both sides of the joist bottom plate. The prefabricated T beam is fixed in the groove of the T beam clamping device. It consists of a triangular bracket affixed to the outer side of the vertical support rod, and the triangular bracket is supported on the jacking mechanism. The advantages of the present invention are that the prefabricated T-beam can be reliably fixed by the special T-beam clamping device, avoiding its inclination or overturning during the transfer process, the beam lifting action is stable, the adaptability is strong, the requirements for foundation and foundation are low, and the Strong adaptability to site conditions.

Description

Prefabricated T beam moving trolley

technical field

The present invention relates to building construction equipment, and specifically refers to a prefabricated T-beam omnidirectional sprocket-type beam-moving trolley and a construction method thereof.

Background technique

Beam moving trolley is an important equipment for moving and transporting prefabricated reinforced concrete beams in the beam yard. At present, large-ton displacement beam trolleys are mostly developed for the movement and transportation of high-speed railway box girders. Two basic schemes are usually adopted. One is to use a traverse trolley to jack up the box girder from bottom to top and then move laterally. Sliding trolley plus special beam-moving slideway or wheel-rail type traversing trolley (divided into mechanical transmission and hydraulic push-push type) can be used; the second is to use a beam handling machine to lift from top to bottom, that is, the lifting beam According to the plan, the beam handling machine is divided into tire type and wheel rail type.

The slideway foundation and bearing capacity standards of the sliding beam scheme are relatively high, and the cost of the reinforced concrete foundation project is high. Since the box girders are moved forward in sequence according to the order of manufacture, the beams cannot be moved at any position to install the beams, and the later manufactured The box girder has to be moved several times. The purchase cost, use cost and maintenance cost of the beam moving equipment are relatively low, and the operation is simple and easy. The standard requirements for the walkway foundation and bearing capacity of tire-type beam-moving equipment are relatively lower; the standard requirements for the walkway foundation and bearing capacity of wheel-rail beam-moving equipment are equivalent to the standard requirements of the sliding beam scheme, and two longitudinal beams must be set for steering. Walk the track. The lifting and moving beam equipment can realize double-layer beam storage and beam moving and loading at any position. The walkway covers a large area, the processing cycle of the equipment is long, the purchase cost, use cost and maintenance cost are high, and the operation is more complicated.

In addition, due to the difference in cross-sectional shape between the box girder and the T girder, if the long and irregular T girder is placed directly on the trolley for transportation, the T girder will inevitably overturn, so the box girder beam moving trolley cannot be used. For moving the T-beam.

Contents of the invention

The purpose of the present invention is to propose a prefabricated T-beam moving beam trolley according to the above-mentioned deficiencies in the prior art, which adopts hydraulic jacking and wheeled travel, and designs a special T-beam clamping device to realize the prefabricated T-beam moving Stationary, jacking and omnidirectional transfer (longitudinal, lateral and steering).

The purpose of the present invention is realized by the following technical solutions:

A prefabricated T-beam moving trolley, used for moving prefabricated T-beams, including a traveling mechanism, a jacking mechanism installed on the traveling mechanism, and a T-beam connected with the jacking mechanism for clamping the prefabricated T-beams Clamping device, the section of the T-beam clamping device is "concave".

The above-mentioned T-beam clamping device mainly includes two halves of trolley brackets arranged symmetrically on both sides of the joist bottom plate and the joist bottom plate. The prefabricated T-beam is fixed in the groove of the T-beam clamping device. It consists of a triangular bracket affixed to the outside of the support rod and the vertical support rod, and the triangular bracket is supported on the jacking mechanism.

The trolley support is connected with the bottom plate of the joist through a bottom plate bolt.

The above-mentioned running mechanism mainly includes a heavy object transporter, and a pendulum shaft support and a pendulum shaft are connected and arranged above the heavy object transporter.

The above-mentioned swing shaft support is connected with the jacking mechanism through a steering pin. The jacking mechanism is a hydraulic jacking mechanism, which is composed of a hydraulic cylinder and its peripheral casing, and the upper part of the hydraulic jacking mechanism is connected with the triangular support through a cylinder pin. The heavy object transfer device is connected with the swing shaft support by a hexagonal bolt.

The top of the trolley bracket is provided with no less than two pairs of through holes. A pair of pull bolts are installed on the pull through holes, and the pull bolts connect and fix the trolley support and the prefabricated T beam, and the prefabricated T beam is provided with a corresponding reserved through hole.

A beam-moving construction method of a prefabricated T-beam moving trolley, which is used for moving a prefabricated T-beam. First, a flat steel plate is placed on a running road surface, and the beam-moving trolley walks on the flat steel plate, and then a T-beam is installed. The beam clamping device places the prefabricated T-beam to be transported in the groove of the trolley bracket, and fastens the prefabricated T-beam with pull bolts, and finally controls the beam-moving trolley to move and transport the prefabricated T-beam.

In order to ensure smooth running, the walking road foundation adopts enlarged concrete foundation.

In order to facilitate the installation of the beam-moving trolley, the bottom mold of the prefabricated T-beam is made of fine molded stones with an angle steel frame, and the beam end adopts a detachable bottom mold.

The advantage of the present invention is that the prefabricated T-beam can be reliably fixed by the special T-beam clamping device, and the prefabricated T-beam can be prevented from tilting or turning over during transportation. The hydraulic jacking mechanism can be reasonably selected according to the tonnage of the prefabricated T beam, and the beam lifting action is stable and adaptable. The jacking mechanism can be mechanical or hydraulic according to the needs. The traveling mechanism adopts a heavy object transfer device, which can realize lateral movement, longitudinal movement and turning. At the same time, the traveling mechanism has low requirements on the foundation and foundation, and has strong adaptability to site conditions.

Description of drawings

Fig. 1 is the front view of the beam moving trolley of the present invention;

Figure 2 is a schematic cross-sectional view of a prefabricated T-beam;

Fig. 3 is a front view of the trolley bracket;

Figure 4 is a top view of the trolley bracket;

Fig. 5 is the left view of trolley bracket;

Figure 6 is a front view of the joist floor;

Fig. 7 is A-A sectional view of Fig. 8;

Fig. 8 is a left view of the bottom plate of the joist;

Figure 9 is a front view of the balance shaft support;

Figure 10 is a top view of the pendulum support;

Figure 11 is a left side view of the balance shaft support.

The labels 1-18 in the accompanying drawings 1-11 indicate: prefabricated T beam 1, pull bolt 2, trolley bracket 3, cylinder pin 4, hydraulic cylinder 5, box 6, safety pin 7, pendulum shaft 8, pendulum Shaft support 9, hexagonal bolt 10, weight transporter 11, flat steel plate 12, steering pin 13, bottom plate pin 14, joist bottom plate 15, vertical support rod 16, triangular bracket cross bar 17, triangular bracket oblique bar 18.

Detailed ways

The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

Accompanying drawing 1 shows the front view of a kind of prefabricated T beam beam moving trolley of the present invention. It can be seen from the figure that in this embodiment, the functional structure of the beam-moving trolley is mainly divided into the traveling mechanism, the jacking mechanism installed on the traveling mechanism, and the T beam connected to the jacking mechanism for clamping the prefabricated T beam Clamping device: including joist bottom plate, heavy object transfer device, pendulum shaft, hydraulic cylinder and casing, trolley bracket pull bolts and other components.

It can be seen from Fig. 1 that the cross-section of the T-beam clamping device composed of two trolley brackets 3 and joist bottom plate 15 is in the shape of "concave", and the prefabricated T-beam 1 shown in Fig. 4 is placed in the groove.

Figure 3-Figure 5 shows three views of the trolley bracket, and Figure 6-Figure 8 shows a schematic diagram of the structure of the bottom plate of the joist. It can be seen from the figure that the two trolley brackets 3 are arranged symmetrically on both sides of the joist bottom plate 15, and the two are connected by the bottom plate bolt 14. Each trolley bracket 3 is composed of three vertical support rods 16 pinned to the joist bottom plate 15 and a triangular bracket fixed to the outside of the vertical support rods. The trolley bracket is supported on the jacking mechanism through the triangular brackets on both sides. , the two are connected through the cylinder pin 4. The triangular bracket expands the lateral dimension of the trolley and ensures the stability of the trolley. Triangular support is made up of cross bar 17 and inclined bar 18, and cross bar connects and fixes vertical support bar from horizontal and bears on the jacking mechanism, and inclined bar connects cross bar and vertical support bar top, forms fixed triangular support.

It can be seen from Figure 1 that the upper part of the groove, that is, the top of the trolley bracket, is provided with a pair of pull-through holes. The pull bolts 2 are installed on the through holes, and the pull bolts 2 pass through the reserved holes on the trolley bracket and the prefabricated T-beam to securely clamp the prefabricated T-beam 1, thus ensuring the prefabricated T-beam during lifting and transporting stability.

In this embodiment, the running mechanism includes a steering pin 13, a pendulum support 9 and a pendulum 8, a weight transporter 11, and the like. A swing shaft support 9 and a swing shaft 8 are installed above the heavy object transfer device 11. The heavy object transfer device 11 can be selected according to the tonnage of the prefabricated T-beam 1, and the beam moving trolley can be driven by pushing or pulling the transfer device Walk forward or backward; turn the transporter to change the walking direction arbitrarily.

The jacking mechanism adopts a hydraulic jacking mechanism, which is composed of a hydraulic cylinder 5 and its peripheral casing 6 . The prefabricated T-beam 1 is jacked up by the hydraulic cylinder 5, which is selected according to the tonnage of the prefabricated T-beam, and the casing 6 is added to the hydraulic cylinder. Four pieces of safety latches 7 are arranged on the casing 6 for locking the oil top.

A pendulum shaft support 9 is set between the hydraulic cylinder 5 and the heavy object transporter 11, and the heavy object transporter and the pendulum shaft support are connected by hexagonal bolts 10. Figures 9-11 show the pendulum shaft support 3 view. The weight of the T-beam is transmitted to the center of the transfer device through the pendulum shaft 8, and at the same time it plays a role of buffering and vibration reduction during the transfer process. The pendulum shaft support 9 is connected to the oil cylinder 5 through the steering pin 13, and a square washer is added between the two. When the weight transporter 11 and the pendulum 8 rotate, the steering pin 13 drives the oil cylinder 5 and the platform on it. Car support 3 and prefabricated T beam 1 turn together.

When using the prefabricated T-beam beam-moving trolley of this embodiment to carry out the beam-moving construction, first place a flat steel plate on the road surface to reduce friction and ensure smooth running, and the heavy object transporter walks on the steel plate. Then install the T-beam clamping device, and place the prefabricated T-beam to be transported in the groove of the trolley support. In order to ensure reliable fixation, the width of the bottom plate of the joist 15 corresponds to the width of the web of the T beam one by one, and the dimensional error between them is filled with thin wood boards or rubber pads to ensure that the two halves of the bracket after the tension bolts are fastened are vertical and close to the T beam. beam web. Finally, the beam-moving trolley is controlled to move and transport the prefabricated T-beam.

This embodiment specifically takes a 220t prefabricated T-beam as an example. The cross-section of the T-beam is shown in FIG. 2 , and the beam length is 55m. The total weight of the prefabricated T-beam is 220t, considering the safety factor of 1.2, it is designed as 260t. the

In this embodiment, the trolley bracket is composed of a vertical bar, a horizontal bar and an oblique bar. According to the shape, size and weight of the T-beam, a piece of trolley support adopts 3 vertical bars, 2 heel bars and 1 horizontal bar, as shown in Figure 3-Figure 5. The two trolley brackets are symmetrically arranged, and the bottom is connected by the bottom plate of the joist and the bolt. The prefabricated T beam is located in the groove formed between the two trolleys and the bottom plate of the joist, and the tension bolts are set on the top of the bracket to fasten the prefabricated T beam. The two halves of the trolley form a support point. The groove formed by the bottom plate of the joist and the bracket is used to bear the weight of the beam body. The components of the bracket and the transverse tension screw mainly bear the left and right swing of the beam body during the movement, preventing the beam body from tilt. Together, they support the beam body and ensure the safety of beam movement.

The selected hydraulic oil roof has a maximum lifting capacity of 160T/unit, and adopts hydraulic locks and mechanical latches for positioning. The ZWY-120 type of heavy object transfer device is selected, and its rolling friction coefficient is less than 0.05, and the traveling direction can be rotated by 90°. The traction force can choose hoist wire rope drag or hydraulic push, and the traction speed is required to be no more than 1m/min. In order to ensure smooth running, the foundation of the walking road adopts enlarged concrete foundation, and 20mm thick steel plates are laid on it.

In order to facilitate the installation of the beam-moving trolley, the bottom mold of the beam is made of fine stones with an angle steel frame, and the beam end is made of a detachable bottom mold with a space height of not less than 250mm to ensure that the bottom plate of the joist can be inserted.

Claims (8)

1. Prefabricated T beam transferring trolley, comprise the lifting body that arranges is installed on running mechanism and the running mechanism, it is characterized in that this moves the beam chassis and also comprises T beam clamping device, described T beam clamping device has U-shaped framework and is supported on the described lifting body, described U-shaped framework is propped up by the two halves chassis of joist base plate and the setting of joist base plate bilateral symmetry and is configured to, described chassis support comprises the affixed triangular supports of vertical supporting bar and the described vertical supporting bar outside, described triangular supports is supported on the described lifting body, described chassis props up top of the trellis and is provided with drawing through hole, and described cooperation is equipped with split bolt on the through hole to drawing.

2. a kind of Prefabricated T beam transferring trolley according to claim 1 is characterized in that being connected by the base plate latch between described chassis support and the joist base plate.

3. a kind of Prefabricated T beam transferring trolley according to claim 1, it is characterized in that described lifting body is hydraulic climbing mechanism, be comprised of hydraulic jack and peripheral hardware casing thereof, described hydraulic climbing mechanism top is connected with described triangular supports by the oil cylinder latch.

4. a kind of Prefabricated T beam transferring trolley according to claim 1 is characterized in that described running mechanism mainly comprises heavy body transporting unit, and described heavy body transporting unit top is connected with pendulum bearing and balance staff.

5. a kind of Prefabricated T beam transferring trolley according to claim 4 is characterized in that being connected by hex bolts between described heavy body transporting unit and the pendulum bearing.

6. a kind of Prefabricated T beam transferring trolley according to claim 4 is characterized in that described pendulum bearing is by turning to bearing pin to be connected with described lifting body.

7. a Prefabricated T beam transferring trolley moves beam construction method, be used for the movement Precast T-Beam, it is characterized in that at first placing plain plate at the traveling pavement of road, make this move the beam trolley traveling on described plain plate, T beam clamping device then is installed, the Precast T-Beam of required movement is positioned in the groove of chassis support, and with the fastening Precast T-Beam of split bolt, control at last and move the beam trolley running, the movement Precast T-Beam.

A kind of Prefabricated T beam transferring trolley according to claim 7 move beam construction method, it is characterized in that, bed die adopts the thin mould stone of angle steel frame when making described Precast T-Beam, beam-ends adopts detachable bed die.

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