A device for overhauling main beam of bridge crane

Abstract

The utility model discloses a device for the maintenance of the main beam of a bridge crane, which belongs to the technical field of mechanical maintenance, and solves the problem that the operator needs to use electric welding to build a temporary simple maintenance platform for maintenance work at a high place, which has potential safety hazards. The utility model includes a frame and a base, the frame includes two first channel steels connected with a second channel steel, slideways are arranged on both sides of the base, the two first channel steels are inserted into the base and slidably arranged on the slideways, a baffle is vertically arranged on the upper surface of one end of the base, and a first pedal is arranged on the upper surface of the frame; a plurality of jacks are respectively arranged on the first channel steel and the second channel steel, and vertical poles are detachably arranged in the jacks, a plurality of cross bars are arranged between the vertical poles on both sides along the width direction of the frame, and a plurality of telescopic railings are arranged between the vertical poles on both sides along the length direction of the frame. The utility model solves the problem that the safety measures for the operator's maintenance work at a high place are poor, improves the maintenance efficiency, and has the characteristics of safe and convenient use.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical maintenance, and in particular relates to a device for maintenance of a main beam of a bridge crane. Background Art

[0002] The main beam and end beam of a bridge crane are connected by pins to form a bridge frame. However, with the increase of working time, the waist-shaped bushings in the pin holes connecting the main beam and the end beam will wear out or even fall off the main beam, which causes the fit between the main beam and the end beam to loosen, seriously affecting the normal operation of the bridge crane. At this time, it is necessary to dismantle the pins connecting the main beam and the end beam and replace them with new waist-shaped bushings.

[0003] Usually, maintenance workers squat on the crane platform between the overhead crane trolley running wheel group and the main beam, and use electric welding to weld the brackets and tie the springboard to build a temporary simple platform, so as to complete the maintenance tasks of dismantling the connecting pin shaft between the main beam and the end beam and replacing the waist bushing. This operation method has the following disadvantages: In order to ensure safety, the construction of the temporary simple platform needs to wait until the maintenance procedures of the overhead crane are completed before the operation, which increases the maintenance operation time; the workers who make the temporary simple platform are in a high-altitude working environment for a long time, the stability effect is poor, there are safety hazards of people falling from heights and objects falling from heights, and the safety risk is relatively high; when using electric welding to weld and dismantle the temporary simple platform, the falling sparks of hot work are extremely difficult to protect, and they are easy to fall to the ground and ignite other objects, which poses a safety risk. Utility Model Content

[0004] The utility model aims to provide a device for the maintenance of the main beam of a bridge crane, so as to solve the problem of potential safety hazards when operators need to use electric welding to build a temporary simple maintenance platform for maintenance work at a high place.

[0005] The technical solution of the utility model is: a device for inspecting and repairing the main beam of a bridge crane, comprising a frame and a base, the frame comprising two first channel steels connected with a second channel steel to form a U-shaped frame, the base is a rectangular structure with openings at both ends, slideways are arranged on both sides of the base, two first channel steels are inserted into the base and are slidably arranged on the slideways, a baffle is vertically arranged on the upper surface of one end of the base, and a first pedal is arranged on the upper surface of the frame; a plurality of insertion holes are respectively arranged on the first channel steel and the second channel steel, vertical poles are detachably arranged in the insertion holes, a plurality of cross bars are arranged between the vertical poles on both sides along the width direction of the frame, and a plurality of telescopic railings are arranged between the vertical poles on both sides along the length direction of the frame.

[0006] As a further improvement of the utility model, a second pedal is provided between the base and the first pedal, and the second pedal is detachably provided on the upper surface of the frame.

[0007] As a further improvement of the utility model, the first channel steel and the slideway are connected and fixed by means of a latch.

[0008] The beneficial effects of the utility model are as follows: the base is inserted into the gap between the overhead crane wheel group and the track, the baffle is abutted against the surface of the wheel frame, and the frame is slid out of the base to be fixed. By utilizing the principle of lever, the base and the frame are firmly clamped between the wheel group and the track to ensure that the dedicated platform is firmly and reliably set without any shaking. The operator stands behind the first pedal and splices the vertical poles, horizontal poles and telescopic railings to form a protective frame for maintenance work.

[0009] The utility model solves the problems of time-consuming and labor-intensive use of electric welding to build a temporary maintenance platform during maintenance work at a height near an edge, and workers being in a dangerous working environment at a height near an edge for a long time with poor safety measures. It reduces the maintenance work time, improves the maintenance efficiency, and improves the availability of equipment.

[0010] The utility model is convenient and quick to use and has high safety performance, which can greatly improve the efficiency of maintenance work and ensure the safety of operators.

[0011] The utility model does not require on-site welding of a temporary platform, can reduce the frequency and time of workers' high-altitude edge maintenance work, greatly reduce the safety risks in the operation process, can also reduce the frequency of hot work, and eliminate the hidden dangers of sparks falling to the ground during hot work. It is safe and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural forward schematic diagram of the utility model;

[0013] Figure 2 It is a rear view schematic diagram of the structure of the utility model;

[0014] Figure 3 This is a forward schematic diagram of the utility model in use;

[0015] Figure 4 It is a rear view schematic diagram of the utility model in use state.

[0016] In the figure: 1-frame; 101-first channel steel; 102-second channel steel; 4-base; 5-slide; 6-latch; 7-baffle; 8-telescopic railing; 9-vertical pole; 10-first pedal; 11-wheel frame; 12-wheel; 13-track; 14-second pedal; 15-jack; 17-cross bar. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figure 1-Figure 2As shown, a device for inspecting the main beam of a bridge crane includes a frame 1 and a base 4, wherein the frame 1 includes two first channel steels 101 connected with a second channel steel 102 to form a U-shaped frame 1, and the base 4 is a rectangular structure with two ends open, and slideways 5 are provided on both sides of the base 4, and the two first channel steels 101 are inserted into the base 4 and slidably set on the slideways 5, and a baffle 7 is vertically provided on the upper surface of one end of the base 4, and a first pedal 10 is provided on the upper surface of the frame 1; a plurality of insertion holes 15 are respectively provided on the first channel steel 101 and the second channel steel 102, and vertical poles 9 are detachably provided in the insertion holes 15, a plurality of cross bars 17 are provided between the vertical poles 9 on both sides along the width direction of the frame 1, and a plurality of telescopic railings 8 are provided between the vertical poles 9 on both sides along the length direction of the frame 1.

[0019] A second pedal 14 is provided between the base 4 and the first pedal 10 , and the second pedal 14 is detachably provided on the upper surface of the frame 1 ; the first channel steel 101 and the slideway 5 are connected and fixed by a latch 6 .

[0020] The first pedal 10 and the second pedal are made of 14-patterned plates, which have durability and corrosion resistance, and can prevent slipping, strengthen performance, save steel and many other advantages, which can greatly improve the safety of people standing on the first pedal 10 and the second pedal 14 to work.

[0021] The slideway 5 is formed by welding a positioning steel plate inside the base 4 close to the inner surface of the first channel steel 101. The first channel steel 101 can be directly slidably connected to the slideway 5, with good adaptability, ensuring the effect while reducing the production cost.

[0022] Design the dimensions of the drawing according to the use environment and use gas welding to cut and cut the materials. Splice and weld two first channel steels 101 and one second channel steel 102 into a U-shaped frame 1, weld a rectangular base 4 with open ends that match the size of the frame 1, and ensure that the cross-sectional size of the base 4 is slightly larger than the cross-sectional size of the frame 1. Use an electric drill to drill holes at equal intervals on the side where the first channel steel 101 is slidably connected to the base 4, insert the first channel steel 101 into the slideway 5 of the base 4, align the pin shaft connecting hole, and insert four pins 6 on both sides respectively, install a welding baffle 7 on the top surface of the end of the base 4, and weld the first pedal 10 flatly on the upper surface of the frame 1 that has been firmly welded.

[0023] Since the width of the second channel steel 102 is fixed, a plurality of corresponding insertion holes 15 are opened on the two first channel steels 101 and the second channel steel 102 to ensure that the vertical pole 9 will not slip after being inserted. The vertical poles 9 are respectively inserted into the insertion holes 15 opened at both ends of the second channel steel 102, and the vertical poles 9 are respectively inserted into the insertion holes 15 opened at the first channel steels 101 on both sides. After the vertical poles 9 are inserted, they are connected with the cross bar 17 and the telescopic railing 8 in sequence to form a detachable safety fence, which further improves the safety of the operation. At the same time, it can also be adjusted according to the working conditions, and is flexible and convenient to use.

[0024] like Figure 3-Figure 4 As shown, during normal operation, the wheel 12 at the bottom of the wheel frame 11 walks on the track 13. When the main beam connecting pin shaft is overhauled or the waist-shaped hole sleeve is replaced for overhaul, after waiting for the parking and overhaul procedures to be completed, it is only necessary to insert the frame 1 and the base 4 that have been welded and assembled in advance into the gap between the bottom of the wheel frame 11 and the track 13, so that the baffle 7 is against the outer surface of the wheel frame 11. The height of the baffle 7 is half of the wheel frame 11. The larger the contact surface between the baffle 7 and the wheel frame 11, the better the abutment effect. Using the principle of leverage, the frame 1 is firmly clamped between the wheel frame 11 and the track 13 to ensure that the maintenance platform is firmly and reliably set up without any shaking. After the operator stands on the first pedal 10, the vertical pole 9 is installed in the socket 15, and then the cross bar 17 and the telescopic railing 8 form a safety fence. The maintenance work can be directly carried out on the temporary platform without the need for open flame welding.

[0025] When it is necessary to increase the working area of ​​the frame 1, slide the first channel steel 101 in the slideway 5 to the maximum length. At this time, the frame 1 is at the outermost side of the base 4, and four pins 6 are inserted on both sides for fixing. At this time, there is a gap between the upper surface of the base 4 and the first pedal 10. The second pedal 14 is placed between the gap, so that the entire frame 1 and the upper surface of the base 4 can be connected as a whole. The detachable setting of the second pedal 14 increases the safe use area of ​​the frame in the base, and the use is more flexible and convenient; then insert the vertical rod 9 into the socket 15 on the first channel steel 101 corresponding to the direction close to the base 4, and the vertical rod 9 and the cross bar 17 of the outermost side of the frame 1 inserted into the socket 15 on the second channel steel 102 do not need to be adjusted, and they can be extended and connected through the telescopic railing 8 to form a safety protection frame.

[0026] After the maintenance work is completed, it is only necessary to remove the safety fence formed by the vertical poles 9, the horizontal poles 17 and the telescopic railings 8, and then pull the frame 1 and the base 4 out of the installation position for storage.

[0027] The utility model has a simple structure and can carry out maintenance work without the need for a temporary platform for hot welding, has good safety effects, improves labor efficiency and reduces safety risks; it is easy to operate and use and can be learned immediately; it is widely applicable and can be used for the maintenance of connecting pin shafts of main beams of various bridge cranes; it has a low production cost and can be mass-produced.

Claims

1. A device for overhauling the main beam of a bridge crane, characterized in that: The invention comprises a frame (1) and a base (4), wherein the frame (1) comprises two first channel steels (101) connected to a second channel steel (102) to form a U-shaped frame (1); the base (4) is a rectangular structure with two ends open; slideways (5) are provided on both sides of the base (4); the two first channel steels (101) are inserted into the base (4) and slidably arranged on the slideways (5); a baffle (7) is vertically provided on the upper surface of one end of the base (4); and a first pedal (10) is provided on the upper surface of the frame (1); a plurality of insertion holes (15) are respectively provided on the first channel steel (101) and the second channel steel (102); vertical poles (9) are detachably provided in the insertion holes (15); a plurality of cross bars (17) are provided between the vertical poles (9) on both sides along the width direction of the frame (1); and a plurality of telescopic railings (8) are provided between the vertical poles (9) on both sides along the length direction of the frame (1).

2. The device for overhauling the main beam of a bridge crane according to claim 1, characterized in that: A second pedal (14) is provided between the base (4) and the first pedal (10), and the second pedal (14) is detachably provided on the upper surface of the frame (1).

3. A device for overhauling a main beam of a bridge crane according to claim 1 or 2, characterized in that: The first channel steel (101) and the slideway (5) are connected and fixed via a latch (6).

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