Movable platform for high-altitude maintenance single-beam bridge crane

Abstract

The utility model discloses a kind of movable platform for high-altitude maintenance single-beam bridge crane, belong to mining machinery field, including bottom support frame, bottom support frame is supported with round bracket, steel plate is connected on round bracket through height adjusting component, slide is equipped on the both sides of steel plate top, walking trolley top is also provided with, walking trolley bottom wheel pair is arranged in slide.This utility model structure design is reasonable, by height adjusting component adjustment up and down distance, make reduction gear shaft outer spline smoothly align sleeve inner spline, under the premise of guaranteeing hoisting equipment reduction gear safe disassembly, avoid the drawback that cannot be moved in parallel after being pulled up by manual reversing chain, through actual use in field, hoist reduction gear is conveniently and quickly when disassembling, improve work efficiency, safety performance is reliable, to overhaul, repair time is saved.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery, specifically a mobile platform for high-altitude maintenance of single-girder bridge cranes. Background Technology

[0002] During the maintenance of cranes in metal and non-metal mines, due to the large number of single-girder bridge cranes, the workload of maintenance and repair is heavy. Each time the reducer is disassembled and assembled, the chain hoist needs to be pulled by hand. After the chain hoist is pulled up, it is inconvenient to move in parallel, and the spline connection is difficult to align, often resulting in improper assembly. Utility Model Content

[0003] In response to the safety hazards and operational risks present in the original maintenance process, this invention provides a mobile platform device for high-altitude maintenance of single-girder bridge cranes.

[0004] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0005] A movable platform for high-altitude maintenance of a single-girder bridge crane includes a bottom support frame, on which a circular bracket is supported. A steel plate is connected to the circular bracket via a height adjustment component. Slide tracks are provided on both sides above the steel plate. A traveling trolley is also provided above the steel plate, and the bottom wheels of the traveling trolley are set in the slide tracks.

[0006] Further technology of this utility model:

[0007] Preferably, the bottom support frame is supported diagonally by four brackets at the bottom of the circular bracket, and the four brackets are connected by intersecting connecting plates.

[0008] Preferably, the height adjustment component includes a sleeve welded to the underside of the steel plate and a screw fixed to a circular bracket. A rotating handle is screwed onto the screw, the diameter of which is larger than the diameter of the sleeve. The top of the screw is inserted into the sleeve, and the bottom of the sleeve rests on the rotating handle.

[0009] Preferably, the openings of the slides on both sides face each other, and the bottom wheel set of the traveling trolley uses at least 3 pairs of rollers to move back and forth within the slides.

[0010] Preferably, the main body of the traveling trolley platform is a flat plate, with anti-roll baffles on both sides of the flat plate. The height of the anti-roll baffles is higher than that of the slide rail, and a handle is provided at the front end of the flat plate.

[0011] The beneficial effects of this utility model are:

[0012] This utility model has a reasonable structural design. By adjusting the vertical distance through the height adjustment component, the external spline of the reducer shaft can be smoothly aligned with the internal spline of the sleeve. Under the premise of ensuring the safe disassembly and assembly of the reducer of the lifting equipment, it avoids the drawback of not being able to move parallel after being pulled up by a manual chain hoist. According to actual field use, it is convenient and quick to disassemble and assemble the crane reducer, improves work efficiency, has reliable safety performance, and saves time for maintenance and emergency repair. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a movable platform structure for a single-girder bridge crane used for high-altitude maintenance according to this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the walking trolley of this utility model;

[0016] Figure 3 This is a schematic diagram of the height adjustment component of this utility model. Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the height adjustment component of this utility model. Figure 2 ;

[0018] In the diagram, 1: slide rail, 2: traveling trolley, 3: circular bracket, 4: height adjustment component, 41: sleeve, 42: screw, 43: rotating handle; 44: limit nut; 5: bracket, 6: connecting plate, 7: steel plate, 8: roller, 9: anti-roll baffle, 10: handle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] like Figure 1-2The movable platform for high-altitude maintenance of a single-girder bridge crane provided in this embodiment consists of five parts. In use, the circular bracket 3 is placed on the four-leg support 5, the steel plate 7 serves as the support platform for the two side slides 1, and a traveling trolley 2 is also provided above the steel plate 7. The bottom wheels of the traveling trolley 2 are set in the slides 1. The steel plate 7, together with the height adjustment component 4, is placed at the position of the circular bracket 3 to ensure good contact area and stability.

[0021] The openings of the slides 1 on both sides face each other, and the bottom wheelset of the traveling trolley 2 uses 3 pairs of rollers 8 to move back and forth within the slides 1. During movement, at least 2 pairs of rollers 8 are kept within the slides 1 to stably support the traveling trolley 2.

[0022] The main body of the traveling trolley 2 platform is a flat plate, with anti-roll baffles 9 on both sides. The height of the anti-roll baffles 9 is higher than that of the slide rail 1. On the one hand, the anti-roll baffles 9 can prevent debris from getting stuck in the slide rail 1 and affecting the forward and backward movement of the traveling trolley 2. On the other hand, the anti-roll baffles 9 can also limit the left and right movement. At the same time, a handle 10 is provided at the front end of the flat plate for easy pushing and pulling.

[0023] The height adjustment component 4 can be a pneumatic cylinder or a hydraulic cylinder. When using a pneumatic or hydraulic cylinder, an external air source or hydraulic mechanism needs to be connected. In this embodiment, to simplify the equipment and reduce external piping, specifically:

[0024] like Figure 3-4 The height adjustment component 4 includes a sleeve 41 welded to the bottom of the steel plate 7 and a screw 42 fixed on the circular bracket 3. A rotating handle 43 is screwed on the screw 42. The diameter of the rotating handle 43 is larger than the diameter of the sleeve 41. The top of the screw 42 is inserted into the sleeve 41, and the bottom of the sleeve 41 sits on the rotating handle 43.

[0025] It should be noted that the length of the sleeve 41 is greater than the length of the screw 42. When the rotating handle 43 is at the lowest point of the screw 42, the screw 42 is still located inside the sleeve 41 at the top.

[0026] Meanwhile, to prevent the screw 42 from being too short within the sleeve 41 when the rotating handle 43 is at its highest point, thus affecting the stability of the sleeve 41, a limiting nut 44 is added to the screw 42 to control the rotation height of the rotating handle 43. The diameter of the nut is smaller than the inner diameter of the sleeve 41 and is placed inside the sleeve 41.

[0027] Rotating the handle 43 causes it to move up and down on the screw 42, which in turn moves the sleeve 41, which sits on the handle 43, up and down.

[0028] Meanwhile, for structural stability, this embodiment uses 3 sets of height adjustment components 4, arranged in a triangular layout.

[0029] In this embodiment, in order to enhance the stability of the bottom support frame structure, the bottom support frame is supported diagonally by four brackets 5 at the bottom of the circular bracket 3, and the four brackets 5 are connected by intersecting connecting plates 6.

[0030] This high-altitude maintenance single-girder bridge crane operating platform device requires that during maintenance operations, it must be placed stably on the lifting vehicle to prevent the risk of tilting and falling. During use, the stopping position and distance of the lifting vehicle should be within the fine adjustment range, the clearance of the screw and nut should meet the requirements, and the tightness should be appropriate. During adjustment, the platform surface of the traveling trolley should be kept parallel.

[0031] When starting the maintenance and dismantling of the speed reducer, first place the traveling trolley 2 under the speed reducer, and use the lead screw to make the trolley platform contact the bottom surface of the speed reducer. Then, loosen all the connecting bolts of the speed reducer, and finally move the traveling trolley 2 backward to completely disengage the old speed reducer, completing the dismantling. When installing the new speed reducer, use the same method, moving the traveling trolley 2 forward to complete the installation. This device has been verified in field use to be convenient and quick for speed reducer maintenance and dismantling, enabling rapid alignment of internal and external splines, improving work efficiency, saving time and labor, and ensuring the safety of equipment and personnel.

[0032] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A movable platform for high-altitude maintenance of a single-girder bridge crane, characterized in that, It includes a bottom support frame, on which a circular bracket is supported. A steel plate is connected to the circular bracket via a height adjustment component. Slide tracks are provided on both sides above the steel plate. A traveling trolley is also provided above the steel plate, and the wheels of the traveling trolley are set in the slide tracks.

2. The movable platform for high-altitude maintenance of a single-girder bridge crane as described in claim 1, characterized in that, The bottom support frame consists of four brackets that are diagonally supported at the bottom of the circular bracket, and the four brackets are connected by intersecting connecting plates.

3. The movable platform for high-altitude maintenance of a single-girder bridge crane as described in claim 1, characterized in that, The height adjustment component includes a sleeve welded to the underside of a steel plate and a screw fixed to a circular bracket. A rotating handle is screwed onto the screw, the diameter of which is larger than the diameter of the sleeve. The top of the screw is inserted into the sleeve, and the bottom of the sleeve rests on the rotating handle.

4. A movable platform for high-altitude maintenance of a single-girder bridge crane as described in claim 1, characterized in that, The openings of the slides on both sides face each other, and the bottom wheels of the traveling trolley use at least 3 pairs of rollers to move back and forth within the slides.

5. A movable platform for high-altitude maintenance of a single-girder bridge crane as described in claim 4, characterized in that, The main body of the traveling trolley platform is a flat plate, with anti-roll baffles on both sides of the flat plate. The height of the anti-roll baffles is higher than that of the slide rail, and a handle is provided at the front end of the flat plate.

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