CN215510334U - Steel box girder polishing equipment - Google Patents

Abstract

The utility model discloses steel box girder polishing equipment which comprises a walking support and a polishing support, wherein a magnetic suction device is arranged on the walking support, the polishing support is arranged in the walking support in a sliding mode, and the polishing support is used for lifting and installing a polishing machine. Before the polishing work of the bottom of the steel box girder begins, a polishing machine is installed on a polishing support, a power supply is switched on, the equipment is placed on a lifting truck, the lifting is stopped after the lifting truck is lifted to a preset distance below the bottom of the girder, a single person lifts the equipment to the bottom of the steel box girder on the lifting truck, a welding line to be polished is aligned with the center of the polishing machine, a magnetic suction device is tightly attached to the bottom of the steel box girder, a power switch of the magnetic suction device is turned on at the same time, the magnetic suction device is simultaneously adsorbed to the bottom of the steel box girder, and a walking support is fixed; then adjusting the angle of the polishing sheet, and starting polishing the convex welding line by a polishing machine until the polishing work is finished; the problems of low polishing efficiency and unsafe polishing process caused by manual polishing of the welding seam at the bottom of the steel box girder are solved.

Description

Steel box girder polishing equipment

Technical Field

The utility model relates to the technical field of mechanical tools, in particular to a steel box girder polishing device.

Background

With the rapid development of the design and construction of urban expressway bridge foundations, the design of steel box girders is increasingly adopted in the process of crossing the existing road overpass. The steel box girder segments can leave welding seams in the process of assembling the bridge on site, the welding seams at the bottom of the box girder spliced on site need to be polished, and the engineering quantity is huge.

Because the steel box girder is all strideed across existing road, bridge or river course top, the clearance distance on the road surface under the steel box girder beam bottom welding seam distance bridge all is greater than 5m, the shape of variable cross section is designed into to some steel box girder cross-sections, can't adopt the high support equipment of uniform height to polish the beam bottom welding seam on ground, current polishing method mainly is that artifical handheld angle mill polishes, because the workman stands and polishes on the lift truck handheld angle mill and has several following difficult problems: firstly, the arm strength is not enough to support durably when the angle grinder is held for a long time; secondly, iron filings splash in the upward polishing process, so that the iron filings are easy to be sucked into the mouth and nose, enter eyes and other hazards exist; thirdly, the hand-held angle grinder has great potential safety hazard when working aloft, and the angle grinder pieces can cause harm to people if broken.

Therefore, how to solve the problems of low polishing efficiency and unsafe polishing process caused by manually polishing the welding seam at the bottom of the steel box girder is a technical problem to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide steel box girder polishing equipment which can automatically polish without a bracket device of a polishing machine held by a worker, and solves the problems of low polishing efficiency and unsafe polishing process caused by manual polishing of a welding seam at the bottom of a steel box girder.

In order to solve the technical problem, the utility model provides steel box girder polishing equipment which comprises a walking support and a polishing support, wherein a magnetic attraction device is arranged on the walking support, the polishing support is arranged in the walking support in a sliding mode, and the polishing support is used for lifting and installing a polishing machine.

Preferably, the walking bracket comprises a first gear track, a second gear track, a first gear fixing device and a second gear fixing device, wherein the first gear fixing device is used for fixing the first gear track, and the second gear fixing device is used for fixing the second gear track.

Preferably, two motors are arranged on the polishing support, driving gears are arranged on the motors, and the driving gears are respectively correspondingly engaged with the first gear track and the second gear track.

Preferably, the grinding support is further provided with a driven gear, and the driven gear is correspondingly engaged with the first gear track and the second gear track respectively.

Preferably, a storage battery and a storage battery electric quantity display which are connected with the motor are arranged on the side edge of the walking bracket.

Preferably, the end of the polishing bracket is hinged to a front bracket, and a polisher fixing device and a fixture fixing device matched with the polisher fixing device are arranged at the top of the front bracket.

Preferably, an elastic device is arranged between the front end bracket and the grinding bracket.

Preferably, a leveling device is arranged on the grinding machine fixing device.

Preferably, the sander fixing device is further provided with an adjusting bolt connected with the leveling device.

Preferably, the magnetic attraction device is an electromagnet, and the magnetic attraction device is respectively arranged at four corners of the walking support.

The steel box girder polishing equipment provided by the utility model comprises a walking support and a polishing support, wherein the walking support is provided with a magnetic attraction device, the polishing support is arranged in the walking support in a sliding manner, and the polishing support is used for lifting and installing a polishing machine. Before the polishing work of the bottom of the steel box girder begins, a polishing machine is installed on a polishing support, a power supply is switched on, the equipment is placed on a lifting truck, when the lifting truck rises to about 1.8 meters below the bottom of the girder, the lifting is stopped, a single person lifts the device to the bottom of the steel box girder on the lifting truck, a welding line to be polished is aligned with the center of the polishing machine, a magnetic suction device is attached to the bottom of the steel box girder, another person simultaneously turns on a power switch of the magnetic suction device, the magnetic suction device is simultaneously adsorbed to the bottom of the steel box girder, and a walking support is firmly fixed; after the walking support is fixed, adjusting the angle of the polishing sheet, and starting polishing the raised welding line by a polishing machine until the polishing work is finished; the problems of low polishing efficiency and unsafe polishing process caused by manual polishing of the welding seam at the bottom of the steel box girder are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of the walking frame shown in FIG. 1;

figure 3 is a schematic view of the sanding stand of figure 1.

Wherein, in fig. 1-3:

a traveling bracket-1, a polishing bracket-2, a magnetic attraction device-3, a first gear rail-4, a second gear rail-5, a first gear fixing device-6, a second gear fixing device-7, a motor-8, a driving gear-9, a driven gear-10, a storage battery-11, a storage battery power display-12, a front end bracket-13, a polisher fixing device-14, a jig fixing device-15, an elastic device-16, a leveling device-17, an adjusting bolt-18, a first gear rail fixing device connecting rod-19, a second gear rail fixing device connecting rod-20, a bracket longitudinal rod-21, a first transverse rod-22, a diagonal rod-23, a vertical rod-24, a second transverse rod-25, a first bearing-26, a second bearing-27, a top cross rod-28, a third bearing-29, a fourth bearing-30, a bolt-31, a first pull rod fixing device-32, a second pull rod fixing device-33, a pull rod-34 and a hand-push support-35.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention; FIG. 2 is a schematic structural view of the walking frame shown in FIG. 1; figure 3 is a schematic view of the sanding stand of figure 1.

In a specific embodiment provided by the utility model, the magnetic suction type polishing machine mainly comprises a walking bracket 1 and a polishing bracket 2, wherein the walking bracket 1 is provided with a magnetic suction device 3, the polishing bracket 2 is arranged in the walking bracket 1 in a sliding manner, and the polishing bracket 2 is used for lifting and installing a polishing machine.

Wherein, magnetism is inhaled device 3 and is used for adsorbing walking support 1 in steel box girder bottom surface, and the support of polishing 2 is used for walking and lifting the polisher and polish steel box girder bottom surface welding seam in walking support 1.

Specifically, in the practical application process, before the polishing work of the bottom of the steel box girder begins, a polishing machine is installed on a polishing support 2, a power supply is switched on, the equipment is placed on a lifting truck, the lifting is stopped when the lifting truck is lifted to about 1.8 meters below the bottom of the girder, a single person lifts the device to the bottom of the steel box girder on the lifting truck, a welding line to be polished is aligned with the center of the polishing machine, a magnetic suction device 3 is tightly attached to the bottom of the steel box girder, another person simultaneously turns on a power switch of the magnetic suction device 3, the magnetic suction device 3 is simultaneously adsorbed to the bottom of the steel box girder, and a walking support 1 is firmly fixed; after the walking support 1 is fixed, the angle of the polishing sheet is adjusted, and the polishing machine starts to polish the convex welding line until the polishing work is finished.

Based on the above embodiment, it is preferable that the traveling carriage 1 includes a first gear rail 4, a second gear rail 5, a first gear fixing device 6, and a second gear fixing device 7, wherein the first gear fixing device 6 is used for fixing the first gear rail 4, and the second gear fixing device 7 is used for fixing the second gear rail 5. The first gear track 4 and the second gear track 5 are respectively fixed at the bottoms of the first gear fixing device 6 and the second gear fixing device 7 in a welding mode; the first gear fixing device 6 and the second gear fixing device 7 are rectangular square steel pipes with the size of 30 x 70mm, and racks with the width of 25mm, the height of 25mm and the length of 1m are adopted for the first gear track 4 and the second gear track 5.

It should be noted that the first gear fixing device 6 and the second gear fixing device 7 are fixed at two ends by a first gear track fixing device connecting rod 19 and a second gear track fixing device connecting rod 20, and the center positions of the first gear track fixing device connecting rod 19 and the second gear track fixing device connecting rod 20 are provided with centering marks, so that the first gear track 4, the second gear track 5, the first gear fixing device 6 and the second gear fixing device 7 form a firm whole.

Based on the above embodiment, as an optimal selection, the polishing bracket 2 is provided with two motors 8, the motors 8 are respectively provided with a driving gear 9, and the driving gears 9 are respectively and correspondingly meshed with the first gear track 4 and the second gear track 5; the grinding support 2 is further provided with a driven gear 10, and the driven gear 10 is correspondingly meshed with the first gear track 4 and the second gear track 5 respectively. The motor 8 adopts a slow-speed motor with 2.5 revolutions per minute, can drive 320 jin and has a working voltage of 220V, and can realize the functions of forward rotation and reverse rotation by switching a switch, so that the polishing bracket 2 can be ensured to advance and retreat; the 2 motors 8 are respectively and fixedly connected with driving gears 9 corresponding to the motors, and bases of the motors 8 are fixed on the polishing support 2 through screws and fixing supports; the driven gear 10 is connected with a corresponding bearing, and the bearing is fixed on the polishing bracket 2; when motor 8 starts, motor 8 drives driving gear 9 and rotates, and driving gear 9 drives driven gear 10 with first gear track 4 and second gear track 5 respectively, and driven gear 10 is connected with the bearing of fixing on grinding support 2 again, and the messenger grinds support 2 and walks on first gear track 4 and second gear track 5.

It should be noted that, after the motor 8 is powered on, the polishing support 2 moves from one end of the traveling support 1 to the other end of the traveling support 1, and when the vehicle travels to the other end, if the polishing effect is not in place, the polishing can be continued by adopting a mode of reversing and retreating the motor 8 until the weld is polished to be qualified.

Based on the above embodiments, it is preferable that the side of the walking frame 1 is provided with a storage battery 11 and a storage battery power display 12 connected with the motor 8. The number of the magnetic suction devices 3 is 4, the magnetic suction devices are respectively fixed at four corners of the walking bracket 1, and 2 magnetic suction devices 3 at opposite corners are powered by the storage battery 11; in addition, the 2 magnetic suction devices 3 at opposite angles adopt 220V national grid power for power supply and are converted into 12V direct current power supply through the power adapter for power supply, and the advantage of adopting national grid power and the storage battery 11 for power supply respectively is that in the process of sudden power failure of the national grid power, the power of the storage battery 11 can continue to work, so that the whole walking bracket 1 system is ensured to be adsorbed at the bottom of a steel box girder, and the accident of the walking bracket 1 system caused by sudden power failure can not occur, thereby causing accidental injury; the battery 11 is installed in the side of first gear fixing device 6 or second gear fixing device 7, and battery power display 12 is installed outward to battery 11, and battery power display 12 can show the current electric quantity of battery 11, and when battery 11's electric quantity shows less than 15%, need charge, guarantees that battery 11 electric quantity is sufficient.

It should be noted that, in the course of the work, constantly pay attention to the electric quantity surplus of storage battery electric quantity display 12, will charge when the electric quantity of battery 11 is less than 15%, just can utilize national grid electric power to charge for battery 11 in the course of the work, guarantee that battery 11 electric power is sufficient constantly, and battery 11 is the safety auxiliary function, prevents to be in 2 magnetism of diagonal angle and inhale 3 outage suddenly of device, leads to walking support 1 to fall, causes the safety problem.

Based on the above embodiment, it is preferable that the end of the grinding support 2 is hinged with a front end support 13, and the top of the front end support 13 is provided with a grinding machine fixing device 14 and a clamp fixing device 15 matched with the grinding machine fixing device 14. The grinding support 2 is formed by welding 20 mm-20 mm square steel pipes, the grinding support 2 consists of 4 support longitudinal rod pieces 21, 2 first transverse rod pieces 22, 2 oblique rod pieces 23, 2 vertical rod pieces 24 and a second transverse rod piece 25, the vertical rod pieces 24 of the grinding support 2 are welded with a first bearing 26 and a second bearing 27, the front end support 13 is provided with a square frame, and the bottom of the square frame penetrates through the first bearing 26 and the second bearing 27, so that the square frame can freely rotate around the first bearing 26 and the second bearing 27; the side surface of the front end bracket 13 consists of a connecting rod, a top cross rod 28 can freely rotate in a third bearing 29 and a fourth bearing 30, and the third bearing 29 and the fourth bearing 30 are welded on the top of the connecting rod on the side surface; the fourth bearing 30 is provided with a screw hole, and the angle of the grinding machine is fixed through a bolt 31, so that the angle can be adjusted in the working state to keep the best grinding state.

It should be noted that, a first pull rod fixing device 32 and a second pull rod fixing device 33 are arranged at the rear end of the first transverse rod 22, holes are formed in the centers of the first pull rod fixing device 32 and the second pull rod fixing device 33, the pull rod 34 passes through the circular holes of the first pull rod fixing device 32 and the second pull rod fixing device 33, two ends of the pull rod are fixed, the pull rod 34 can freely rotate in the holes of the first pull rod fixing device 32 and the second pull rod fixing device 33, the hand-push support 35 is installed on two sides of the pull rod 34 and can freely rotate around the pull rod 34, and when the motor 8 is not used for power walking, the hand-push support 35 can be used for walking back and forth on the walking support 1 for polishing.

Based on the above embodiment, it is preferable that an elastic device 16 is provided between the front end bracket 13 and the grinding bracket 2. 2 elastic devices 16 are connected with the polishing bracket 2 and the front end bracket 13, and the elastic devices 16 can adjust the stress state of the front end bracket 13 and control the polishing axial force of the polishing device; the grinding axial force increases when the front end bracket 13 is in a tensioned state, and conversely, the grinding axial force decreases.

Based on the above embodiment, it is preferable that the sander fixing device 14 is provided with a leveling device 17. The grinding machine fixing device 14 is welded on the top cross bar 28 of the front end support 13, the clamp fixing device 15 is a movable device and is not welded on the top cross bar 28 of the front end support 13, and the two screws on the side face of the clamp fixing device 15 are screwed on the grinding machine fixing device 14 to enable the grinding machine to be clamped tightly.

Based on the above embodiment, it is preferable that the sander fixing device 14 further has an adjusting bolt 18 connected to the leveling device 17. A leveling device 17 and an adjusting bolt 18 are welded and fixed on the grinding machine fixing device 14, and the leveling device 17 comprises a bottom fixing sleeve, an upper rod frame and a pulley with a shaft for rotation; the top of the leveling device 17 is provided with a bolt opening, and the height of the upper rod frame is adjusted through the fastening function of an adjusting bolt 18.

In conclusion, the steel box girder equipment of polishing that this embodiment provided mainly includes the walking support and the support of polishing, is equipped with magnetism on the walking support and inhales the device, and the support of polishing slides and sets up in the walking support, and the support of polishing is used for lifting installation polisher. Before the polishing work of the bottom of the steel box girder begins, a polishing machine is installed on a polishing support, a power supply is switched on, the equipment is placed on a lifting truck, when the lifting truck rises to about 1.8 meters below the bottom of the girder, the lifting is stopped, a single person lifts the device to the bottom of the steel box girder on the lifting truck, a welding line to be polished is aligned with the center of the polishing machine, a magnetic suction device is attached to the bottom of the steel box girder, another person simultaneously turns on a power switch of the magnetic suction device, the magnetic suction device is simultaneously adsorbed to the bottom of the steel box girder, and a walking support is firmly fixed; after the walking support is fixed, the angle of the polishing sheet is adjusted, and the polishing machine starts to polish the convex welding line until the polishing work is finished.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a steel box girder equipment of polishing, its characterized in that, includes walking support (1) and the support (2) of polishing, be equipped with magnetism on walking support (1) and inhale device (3), the support (2) of polishing slide set up in walking support (1), just the support (2) of polishing are used for lifting installation polisher.

2. The steel box beam grinding apparatus according to claim 1, wherein the walking bracket (1) comprises a first gear rail (4), a second gear rail (5), a first gear fixing device (6) and a second gear fixing device (7), the first gear fixing device (6) is used for fixing the first gear rail (4), and the second gear fixing device (7) is used for fixing the second gear rail (5).

3. The steel box girder grinding device according to claim 2, wherein two motors (8) are arranged on the grinding support (2), driving gears (9) are arranged on the motors (8), and the driving gears (9) are respectively correspondingly meshed with the first gear track (4) and the second gear track (5).

4. The steel box girder grinding device according to claim 3, wherein the grinding support (2) is further provided with a driven gear (10), and the driven gear (10) is correspondingly engaged with the first gear track (4) and the second gear track (5) respectively.

5. The steel box girder grinding device according to claim 4, wherein a storage battery (11) and a storage battery power display (12) connected with the motor (8) are arranged on the side of the walking bracket (1).

6. The steel box beam grinding equipment according to any one of claims 1 to 5, wherein the grinding support (2) is provided with a front end support (13) at the end in an articulated manner, and a grinding machine fixing device (14) and a clamp fixing device (15) matched with the grinding machine fixing device (14) are arranged on the top of the front end support (13).

7. Steel box beam grinding apparatus according to claim 6, characterized in that an elastic means (16) is provided between the front end bracket (13) and the grinding bracket (2).

8. A steel box beam grinding apparatus according to claim 7, wherein the grinder fixing device (14) is provided with a leveling device (17).

9. The steel box beam grinding apparatus according to claim 8, wherein the grinding machine fixing device (14) is further provided with an adjusting bolt (18) connected with the leveling device (17).

10. The steel box girder grinding device according to claim 6, wherein the magnetic attraction device (3) is an electromagnet, and the magnetic attraction device (3) is respectively arranged at four corners of the walking bracket (1).

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