CN223061453U - A temporary support device for erecting a steel structure bridge - Google Patents

Abstract

The utility model provides a temporary support device that steel construction bridge was erect, including the supporting seat, the top of supporting seat is equipped with the lower carriage, be equipped with elevating system between lower carriage and the supporting seat, be equipped with swing mechanism between last supporting bench and the lower carriage, the top of going up the supporting bench is fixed with braced frame, be equipped with the lead screw on the braced frame, braced frame's one end is fixed with the lead screw motor, the power take off shaft and the lead screw transmission of lead screw motor are connected, and threaded connection has two supporting shoe that symmetry set up on the lead screw, the internal screw thread of two supporting shoe is opposite, be fixed with the guide rail with lead screw parallel arrangement on the last supporting bench of lead screw below, the spout has been seted up on the guide rail, the bottom of two supporting shoe all is fixed with the slider, and the lower extreme slidable assembly of slider is in the spout, the spacing groove with lead screw parallel arrangement has been seted up on braced frame's top, the top of two supporting shoes all is fixed with the arm lock. The utility model has simple structure and convenient use.

Description

Temporary support device for steel structure bridge erection

Technical Field

The utility model belongs to the technical field of steel structure bridge erection, and particularly relates to a temporary support device for steel structure bridge erection.

Background

Steel bridge, i.e. steel bridge and steel bridge, is used widely in all parts of the world, and some supporting structures are used to prevent collapse of bridge during assembly and maintenance and replacement of parts, but because the traditional supporting structures are fixedly installed and connected by screws, the support structure is required to be removed when the bridge is maintained, so that the support structure is very inconvenient, the height of the existing support device is inconvenient to adjust when the existing support device supports the non-portion of the bridge, the support angle is inconvenient to adjust, and in addition, the situation that the bridge falls down obliquely easily occurs when the bridge is supported, so that the existing steel structure bridge is inconvenient to use when the existing steel structure bridge is assembled or parts are replaced.

Disclosure of utility model

The utility model provides a temporary support device for erecting a steel structure bridge, which aims to solve the technical problem that the prior steel structure bridge is inconvenient to use during installation and maintenance, including the supporting seat that the level set up, the supporting seat plays the fixed action of support, and the top of supporting seat is equipped with the lower brace table with supporting seat parallel arrangement, is equipped with elevating system between lower brace table and the supporting seat. The lifting mechanism comprises telescopic supporting legs fixed at four corners of the bottom end of the supporting seat, the top ends of the telescopic supporting legs are fixed at the bottom end of the lower supporting table, the lifting mechanism further comprises an electric push rod arranged in the middle of the top end of the supporting seat, the bottom end of the electric push rod is fixed at the top end of the supporting seat, the top end of the electric push rod is fixed at the bottom end of the lower supporting table, the free end of the electric push rod stretches, the electric push rod pushes the lower supporting table to move upwards, and therefore the height of the lower supporting table is improved. The telescopic supporting leg comprises a telescopic outer pipe which is vertically arranged, the bottom end of the telescopic outer pipe is fixed at the top end of the supporting seat, the upper end of the telescopic outer pipe is sleeved with a telescopic inner pipe, the top end of the telescopic inner pipe upwards extends out of the telescopic outer pipe, the top end of the telescopic inner pipe is fixed at the bottom end of the upper supporting table, the telescopic supporting leg plays a role in guiding, and the lower supporting table can be kept to move up and down in the vertical direction. An upper supporting table is arranged above the lower supporting table, a rotary mechanism is arranged between the upper supporting table and the lower supporting table, the upper supporting table is rotatably assembled on the lower supporting table through the rotary mechanism, the rotary mechanism comprises a rotary support, an inner ring of the rotary support is fixed on the lower supporting table through a supporting shaft, the upper supporting table is detachably fixed on the top end of an outer gear ring of the rotary support through a fixing bolt, a motor supporting frame is fixed on the lower supporting table, a rotary motor is fixed on the top end of the motor supporting frame, a power output shaft of the rotary motor is in transmission connection with the outer gear ring of the rotary support through a transmission gear, the rotary motor is started, and the rotary motor drives the upper supporting table to rotate through the transmission gear and the rotary support, so that the angle of a clamping arm at the top end of the upper supporting table is adjusted. The top of going up the brace table is fixed with braced frame, rotatable the being equipped with the lead screw that the level set up on the braced frame, braced frame's one end is fixed with the lead screw motor, the power take off shaft and the lead screw transmission of lead screw motor are connected, and threaded connection has two supporting shoe that the symmetry set up on the lead screw, the internal thread of two supporting shoe is opposite, be fixed with the guide rail with lead screw parallel arrangement on the last brace table of lead screw below, the spout has been seted up on the guide rail, the bottom of two supporting shoe all is fixed with the slider, and the lower extreme slidable assembly of slider is in the spout, the spacing groove with lead screw parallel arrangement has been seted up on braced frame's top, the top of two supporting shoe all is fixed with the arm-clamp, when needs arm-clamp centre gripping bridge, start the lead screw motor, the lead screw motor passes through lead screw drive two supporting shoe and moves in opposite directions, until two arm-clamp contact and press from each other and press from both sides the bridge, when the lead screw motor drives lead screw reverse rotation.

Preferably, the two clamping arms are symmetrically arranged and both clamping arms are inverted L-shaped.

Preferably, the lead screw motor, the rotary motor and the electric push rod are all connected to a power supply through cables, and the lead screw motor, the rotary motor and the electric push rod are all connected to the PLC through cables.

The adoption of the scheme has the following advantages:

The lifting mechanism is arranged, the free end of the electric push rod stretches, the electric push rod pushes the lower supporting table to move upwards, so that the height of the lower supporting table is improved, when the height of the lower supporting table needs to be reduced, the electric push rod is started, the free end of the electric push rod retracts to pull the lower supporting table to descend by a certain height, the height of the device is convenient to adjust, the rotary mechanism is arranged, the rotary motor drives the upper supporting table to rotate through the transmission gear and the rotary support, the angle of the clamping arm at the top end of the upper supporting table is adjusted, the clamping arm, the screw rod and the screw rod motor are arranged, the screw rod motor can drive the screw rod to rotate, then the two clamping arms are pushed to be close to each other, the bridge is clamped, the bridge is prevented from inclining or rolling in the construction process, and the construction safety is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic view of the usage state of the present utility model.

Reference numeral 1, a supporting seat; 2, a lifting mechanism, 3, a lower supporting table, 4, a slewing mechanism, 5, an upper supporting table, 6, a supporting frame, 7, a bridge, 21, a telescopic supporting leg, 22, an electric push rod, 23, a telescopic outer tube, 24, a telescopic inner tube, 41, a slewing support, 42, a motor supporting frame, 43, a slewing motor, 44, a transmission gear, 61, a lead screw, 62, a lead screw motor, 63, a supporting block, 64, a limiting groove, 65, a clamping arm, 66, a guide rail, 67, a sliding groove, 68 and a sliding block.

Detailed Description

As shown in fig. 1-2, a temporary support device for erecting a steel structure bridge comprises a support seat 1 horizontally arranged, wherein the support seat 1 plays a role in supporting and fixing, a lower support table 3 which is arranged in parallel with the support seat 1 is arranged above the support seat 1, and a lifting mechanism 2 is arranged between the lower support table 3 and the support seat 1. The lifting mechanism 2 comprises telescopic supporting legs 21 fixed at four corners of the bottom end of the supporting seat 1, the top ends of the telescopic supporting legs 21 are fixed at the bottom end of the lower supporting table 3, and the lifting mechanism further comprises an electric push rod 22 arranged in the middle of the top end of the supporting seat 1, the bottom end of the electric push rod 22 is fixed at the top end of the supporting seat 1, the top end of the electric push rod 22 is fixed at the bottom end of the lower supporting table 3, the free end of the electric push rod 22 stretches, the electric push rod 22 pushes the lower supporting table 3 to move upwards, so that the height of the lower supporting table 3 is lifted, when the height of the lower supporting table 3 needs to be reduced, the electric push rod 22 is started, and the free end of the electric push rod 22 retracts to pull the lower supporting table 3 to descend by a certain height. The telescopic support leg 21 comprises a telescopic outer tube 23 which is vertically arranged, the bottom end of the telescopic outer tube 23 is fixed at the top end of the supporting seat 1, a telescopic inner tube 24 is sleeved at the upper end of the telescopic outer tube 23, the top end of the telescopic inner tube 24 extends out of the telescopic outer tube 23 upwards, the top end of the telescopic inner tube 24 is fixed at the bottom end of the upper supporting table 5, the telescopic support leg 21 plays a role in guiding, and the lower supporting table 3 can be kept to move up and down in the vertical direction. An upper supporting table 5 is arranged above the lower supporting table 3, a rotary mechanism 4 is arranged between the upper supporting table 5 and the lower supporting table 3, the upper supporting table 5 is rotatably assembled on the lower supporting table 3 through the rotary mechanism 4, the rotary mechanism 4 comprises a rotary support 41, an inner ring of the rotary support 41 is fixed on the lower supporting table 3 through a supporting shaft, the upper supporting table 5 is detachably fixed on the top end of an outer gear ring of the rotary support 43 through a fixing bolt, a motor supporting frame 42 is fixed on the lower supporting table 3, a rotary motor 4 is fixed on the top end of the motor supporting frame 42, a power output shaft of the rotary motor 4 is in transmission connection with the outer gear ring of the rotary support 41 through a transmission gear 44, the rotary motor 43 is started, and the rotary motor 43 drives the upper supporting table 5 to rotate through the transmission gear 44 and the rotary support 41, so that the angle of a top end clamping arm 65 of the upper supporting table 5 is adjusted. The top of the upper supporting table 5 is fixedly provided with a supporting frame 6, the supporting frame 6 is rotatably provided with a horizontally arranged screw rod 61, one end of the supporting frame 6 is fixedly provided with a screw rod motor 62, a power output shaft of the screw rod motor 62 is in transmission connection with the screw rod 61, two symmetrically arranged supporting blocks 63 are in threaded connection with the screw rod 61, internal threads of the two supporting blocks 63 are opposite, the upper supporting table 5 below the screw rod 61 is fixedly provided with a guide rail 66 which is parallel to the screw rod 61, the guide rail 66 is provided with a sliding groove 67, the bottom ends of the two supporting blocks 63 are fixedly provided with sliding blocks 68, the lower ends of the sliding blocks 68 are slidably assembled in the sliding groove 67, the top ends of the supporting frame 6 are provided with limiting grooves 64 which are parallel to the screw rod 61, clamping arms 65 are fixedly arranged at the top ends of the two supporting blocks 63, when the clamping arms 65 are required to clamp a bridge 7, the screw rod motor 62 is started, the screw rod motor 62 drives the two supporting blocks 63 to move in opposite directions until the two clamping arms 65 contact and clamp the bridge 7, and the screw rod motor 62 drives the screw rod 61 to reversely rotate.

Preferably, the two clamp arms 65 are symmetrically disposed and both clamp arms 65 are inverted L-shaped.

Preferably, the lead screw motor 62, the rotary motor 43 and the electric push rod 22 are all connected to a power supply through cables, and the lead screw motor 62, the rotary motor 43 and the electric push rod 22 are all connected to a PLC controller through cables.

The using process comprises the following steps:

When the device is used, firstly, the device is squared on the ground, then, the electric push rod 22 is started to adjust the heights of the two clamping arms 65, the free end of the electric push rod 22 is extended, the electric push rod 22 pushes the lower supporting table 3 to move upwards, so that the height of the lower supporting table 3 is increased, when the height of the lower supporting table 3 needs to be reduced, the electric push rod 22 is started, and the free end of the electric push rod 22 is retracted to pull the lower supporting table 3 to descend by a certain height, so that the height of the device is convenient to adjust; when the bridge 7 is placed at the top end of the supporting frame 6, the lead screw motor 62 is started, the lead screw motor 62 drives the lead screw 61 to rotate, and then the two clamping arms 65 are pushed to be close to each other, so that the bridge 7 is clamped, the bridge 7 is prevented from tilting or rolling in the construction process, and the construction safety is improved.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims (6)

The top of the support frame is provided with a limit switch, and the bottom of the support frame is provided with a limit switch, and the bottom of the support frame is provided with a limit switch. 2. According to claim 1, a temporary support device for erecting a steel structure bridge is characterized in that: the lifting mechanism includes retractable legs fixed at the four corners of the bottom end of the support seat, and the top of the retractable legs is fixed to the bottom end of the lower support platform; it also includes an electric push rod arranged in the middle of the top end of the support seat, the bottom end of the electric push rod is fixed to the top end of the support seat, and the top end of the electric push rod is fixed to the bottom end of the lower support platform. 3. According to claim 2, a temporary support device for erecting a steel structure bridge is characterized in that: the retractable support leg includes a vertically arranged telescopic outer tube, the bottom end of the telescopic outer tube is fixed to the top of the support seat, the upper end of the telescopic outer tube is sleeved with a telescopic inner tube, the top end of the telescopic inner tube extends upward from the telescopic outer tube, and the top end of the telescopic inner tube is fixed to the bottom end of the upper support platform. 4. A temporary support device for erecting a steel structure bridge according to claim 1, characterized in that: the slewing mechanism includes a slewing support, the inner ring of the slewing support is fixed to the lower support platform through a support shaft, and the upper support platform is detachably fixed to the top of the outer gear ring of the slewing support by fixing bolts; and a motor support frame is fixed to the lower support platform, a slewing motor is fixed to the top of the motor support frame, and the power output shaft of the slewing motor is connected to the outer gear ring of the slewing support through a transmission gear. 5. A temporary support device for erecting a steel structure bridge according to claim 1, characterized in that the two clamping arms are symmetrically arranged and both clamping arms are in an inverted L shape. 6. A temporary support device for erecting a steel structure bridge according to claim 1, characterized in that: the screw motor, the rotary motor and the electric push rod are all connected to the power supply through cables; the screw motor, the rotary motor and the electric push rod are all connected to the PLC controller through cables.