Crane rail suspension device for underground pump room chamber of mine

Abstract

The utility model discloses a mine underground pump room chamber crane rail suspension device which comprises a plurality of cross beams which are used for suspending a crane rail, the trend of the cross beams is perpendicular to the trend of the crane rail, and the cross beams are equal in height and are arranged in parallel. The left end and the right end of each cross beam are connected with the side wall on the side through a set of cross beam supporting mechanism. Each cross beam is connected with a crane track through two sets of same suspension mechanisms; and the crane track and the cross beam are I-shaped steel. According to the utility model, the cross beam is additionally arranged above the crane track to reinforce the crane track, so that the displacement of the crane track in the horizontal direction can be effectively limited, and the shaking phenomenon generated in the hoisting process is avoided. And the stability and the safety of the hoisting operation are further improved.

Description

Technical Field

[0001] This utility model relates to a crane track suspension device used in underground mines, and more particularly to a crane track suspension device used in underground pump room chambers in mines. Background Technology

[0002] Cranes in underground pump rooms of mines are mainly used to meet the needs of installing and maintaining large water pumps and motors. Their spans, lifting heights, and suspended weights are all large, thus requiring high stability and safety standards for the crane's suspension system. For example, the suspended electric single-girder gantry crane installed in the main drainage pump room of a gold mine under Shandong Gold Group is used to meet the needs of installing and maintaining large water pumps and motors in the pump room. It has a maximum lifting capacity of 16 tons, a span of 3.3 meters, a lifting height of 6 meters, and a maximum single-unit weight of nearly 14 tons. Because it is crucial to the safety and reliability of the underground pump room's lifting and transportation system, the stability and safety requirements for the suspension system of this electric single-girder gantry crane are extremely high.

[0003] According to existing technology, the typical method for suspending and installing crane rails is as follows: anchor holes are drilled in the top slab of the pump house chamber, multiple sets (four anchors per set) are installed, and the lower part is welded to the connecting steel plate welded to the upper part of the I-beam rail for fixation. Since the anchors can only fix and constrain the rail in the vertical direction, but cannot achieve fixation or constraint in the horizontal direction, when hoisting large water pumps (such as 14t pumps), even though the maximum lifting capacity of the crane (such as 16t) has not been reached, the horizontal sway, mainly in the left and right directions, is excessive, seriously exceeding the permissible values ​​of the specifications, posing a potential safety hazard to the hoisting operation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a suspension device for the crane track in the underground pump room chamber of a mine, which effectively constrains the crane track in the vertical and horizontal directions to prevent the crane from swaying and further improves the stability and safety of hoisting operations.

[0005] The technical solution of this utility model is as follows:

[0006] A crane rail suspension device for a mine underground pump room chamber includes a left and a right side wall of the pump room chamber and a left and a right crane rail installed inside the pump room chamber. The crane rail suspension device also includes several crossbeams for suspending the crane rails and whose direction is perpendicular to the direction of the crane rails. The crossbeams are of equal height and arranged in parallel. The left and right ends of each crossbeam are connected to the side wall of the side wall on the corresponding side through a set of crossbeam support mechanisms. Each crossbeam is connected to the crane rail through two identical sets of suspension mechanisms. The crane rails and crossbeams are all made of I-beams.

[0007] Preferably, the crossbeam supporting mechanism comprises an upper supporting plate fixed to the lower side of the crossbeam and a lower supporting plate below the upper supporting plate; a supporting vertical plate parallel to the side of the side slope is fixed between the upper supporting plate and the lower supporting plate; a supporting rib plate perpendicular to the supporting vertical plate is also fixed between the upper supporting plate and the lower supporting plate; the supporting vertical plate is provided with anchor rod fixing adjusting holes in the form of oval-shaped through holes, and the outer sides of the anchor rods passing through the four anchor rod fixing adjusting holes are inserted into and fixed in the anchor rod holes provided in the side slope.

[0008] Preferably, the crossbeam supporting mechanism further comprises a positioning rib plate; the upper supporting plate and the crossbeam are fixed to the positioning rib plate respectively.

[0009] Preferably, the outer side of the supporting vertical plate is further fixed with a supporting limiting plate which is perpendicular to the supporting vertical plate and has an outer side used for abutting against the side slope.

[0010] Preferably, a resin anchoring agent is poured between the anchor rod and the hole wall of the anchor rod hole; an anchoring agent blocking ring is installed on the anchor rod to prevent the outflow of the anchoring agent before it is shaped.

[0011] Preferably, two positioning angle steels crossing each other are arranged between two adjacent crossbeams, one end of the positioning angle steel is connected to the crossbeam, and the other end is connected to the crane track below the adjacent crossbeam.

[0012] Preferably, the suspension mechanism comprises a connecting plate abutting against the lower side of the crossbeam; the lower side of the connecting plate is fixed to the upper side of the crane track; the suspension mechanism further comprises a connecting bolt passing through the connecting plate and the lower flange plate of the crossbeam I-beam.

[0013] Preferably, two connecting nuts are connected to the connecting bolt; one of the connecting nuts is used as a connecting fixed nut and abuts against the upper side of the lower flange plate of the crossbeam I-beam through a horizontal adjusting block, and the other connecting nut is used as a locking nut and abuts against the upper side of the connecting fixed nut.

[0014] The beneficial effects of the utility model are as follows:

[0015] Firstly, the utility model adds a crossbeam above the crane track to reinforce the crane track, which can effectively limit the displacement of the crane track in the horizontal direction and avoid the shaking phenomenon in the lifting process, thereby further improving the stability and safety of the lifting operation.

[0016] Secondly, the two ends of the crossbeam used for lifting the crane track are firmly and reliably connected to the side slope of the pump house chamber by means of the crossbeam supporting mechanism of the utility model; the suspension mechanism of the utility model is used to realize the firm and reliable connection between the crane track and the crossbeam; and the truss cable-stayed mechanism of the utility model is used to further improve the connection stability between the crane track and the crossbeam. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 is a top view structural schematic diagram of an embodiment of the utility model;

[0019] Figure 3 is a front view structural schematic diagram of a beam support mechanism in an embodiment of the utility model;

[0020] Figure 4 is a side view structural schematic diagram of a beam support mechanism in an embodiment of the utility model;

[0021] Figure 5 is a front view structural schematic diagram of a suspension mechanism in an embodiment of the utility model;

[0022] Figure 6 is a side view structural schematic diagram of a suspension mechanism in an embodiment of the utility model.

[0023] Explanation of reference signs:

[0024] 1, side help; 2, beam support mechanism; 21, upper support plate; 22, support rib plate; 23, lower support plate; 24, support vertical plate; 241, anchor rod fixing adjusting hole; 25, support limiting plate; 26, resin anchoring agent; 27, anchor rod; 28, anchoring agent blocking ring; 29, anchor rod nut; 3, crane rail; 4, suspension mechanism; 41, connecting plate; 42, horizontal adjusting block; 43, connecting nut; 44, connecting bolt; 5, beam; 6, positioning rib plate; 7, positioning angle steel. DETAILED DESCRIPTION

[0025] The utility model is further explained below in combination with embodiments and drawings.

[0026] As Figure 1 and Figure 2 , the embodiment of the utility model crane rail suspension device comprises each one side help 1 of left and right of pump house chamber and each one crane rail 3 of left and right installed in the pump house chamber. This embodiment further comprises several beams 5 for suspending the crane rail 3 and the trend is perpendicular to the trend of the crane rail 3, each beam 5 is set in parallel and equal height. The left and right ends of each beam 5 are connected to the side help 1 of the side through a set of beam support mechanisms 2. Each beam 5 is connected to the crane rail 3 through the same two sets of suspension mechanisms 4. The crane rail 3 and the beam 5 are all I-steel.

[0027] As Figure 3 and Figure 4The beam support mechanism 2 includes an upper support plate 21 welded and fixed to the lower side of the beam 5 (i.e., the lower side of the lower flange of the I-beam of the beam 5) and a lower support plate 23 located below and parallel to the upper support plate 21. A support upright plate 24 parallel to the side arm 1 on the same side is welded and fixed between the upper support plate 21 and the lower support plate 23. Two support stiffeners 22 perpendicular to the support upright plate 24 are also welded and fixed between the upper support plate 21 and the lower support plate 23. The outer side of the support stiffeners 22 ( Figure 3 The left side (as shown) is also welded to the support plate 24. The support plate 24 has four elliptical through holes for anchor fixing and adjustment 241. Anchors 27 passing through these four holes are inserted and fixed into the anchor holes in the side wall 1. The beam support mechanism 2 also includes a positioning rib plate 6, and the upper support plate 21 and the beam 5 are fixed to the positioning rib plate 6 by welding.

[0028] Furthermore, a support limiting plate 25 perpendicular to the support plate 24 is welded and fixed to the outer side of the support plate 24. The outer side of the support limiting plate 25 is used to abut against the side arm 1 to ensure that the upper support plate 21 is in a horizontal state.

[0029] Furthermore, the anchor rod 27 is also threaded with two anchor rod nuts 29, one of which serves as the anchor rod fixing nut against the inner side of the support plate 24, and the other serves as the anchor rod anti-loosening nut against the inner side of the first one.

[0030] Furthermore, a resin anchoring agent 26 is poured between the anchor rod 27 and the wall of the anchor rod hole to improve the safety and reliability of the anchor rod fixation. After the agent solidifies for fifteen minutes, the anchor rod can bear the load.

[0031] Furthermore, an anchoring agent retaining ring 28 is installed on the anchor rod 27 to prevent the anchoring agent 9 from flowing out before it is formed.

[0032] Furthermore, a V-groove is machined on a section of the anchor rod 27 located in the anchor rod hole. The resin anchoring agent 26 enters the V-groove before molding, which can prevent the anchor rod from undergoing horizontal displacement in the hole after molding.

[0033] Furthermore, two intersecting positioning angle steels 7 are provided between two adjacent crossbeams 5, serving as a structural truss between the crossbeams 5 and the crane rail 3 for diagonal bracing and fixing, ensuring the stability and reliability of the structure. Specifically, one end of the positioning angle steel is connected to the crossbeam 5, and the other end is connected to the crane rail 3 below the adjacent crossbeam 5.

[0034] like Figure 5 and Figure 6The suspension mechanism 4 comprises a connecting plate 41 attached to the lower side of the cross beam 5 (i.e. the lower side of the lower flange plate of the I-beam of the cross beam 5). The lower side of the connecting plate 41 is welded to the upper side of the crane rail 3 (i.e. the upper side of the upper flange plate of the I-beam of the crane rail). Each suspension mechanism 4 further comprises four connecting bolts 44 passing through the connecting plate 41 from bottom to top and the lower flange plate of the I-beam of the cross beam 5. Two connecting nuts 43 are connected to the connecting bolts 44, one of which is a connecting fixing nut abutting against the upper side of the lower flange plate of the I-beam of the cross beam 5 through a horizontal adjusting block 42, and the other is a locking nut abutting against the upper side of the connecting fixing nut.

[0035] The horizontal adjusting block 42 is used to compensate for the slope of the upper side of the lower flange plate of the I-beam of the cross beam 5, so as to realize the horizontal pressing of the connecting fixing nut against the flange plate.

[0036] In the specific manufacturing process, all the metal structures are manually derusted, brushed with epoxy zinc-rich primer once and epoxy gray finish twice, and the paint film thickness is not less than 150 microns, so as to delay the corrosion of chloride ions in the downhole water spray on the metal structure and maximize the service life. All the metal components are welded by fillet welding and continuous welding, and the weld height is not less than the minimum thickness of the connecting member; after welding, the weld is checked for defects such as slag inclusion and porosity, so that the metal component has sufficient connecting strength.

Claims

1. A mine underground pump house chamber crane rail suspension device, comprising a left and right each side of a pump house chamber (1) and a left and right each pump house chamber installed in the crane rail (3), characterized in that: The crane rail suspension device further comprises several beams (5) for suspending the crane rail (3) and running perpendicular to the running direction of the crane rail (3); each beam (5) is arranged in parallel and at the same height; the left and right ends of each beam (5) are connected to the side slope (1) on the corresponding side through a set of beam support mechanisms (2); each beam (5) is connected to the crane rail (3) through two sets of suspension mechanisms (4); the crane rail (3) and the beam (5) are both I-beams.

2. A mine underground pump house chamber hoist rail suspension as claimed in claim 1 wherein: The beam support mechanism (2) comprises an upper support plate (21) fixed to the lower side of the beam (5) and a lower support plate (23) below the upper support plate (21); a support vertical plate (24) parallel to the side slope (1) on the corresponding side is fixed between the upper support plate (21) and the lower support plate (23); a support rib plate (22) perpendicular to the support vertical plate (24) is further fixed between the upper support plate (21) and the lower support plate (23); the support vertical plate (24) is provided with anchor rod fixing adjustment holes (241) in the form of oval through holes; the anchor rods (27) passing through the four anchor rod fixing adjustment holes (241) are inserted into and fixed in the anchor rod holes provided in the side slope (1) on the outside.

3. A mine- underground-pump-house-chamber-suspension-of- crane-rail device, according to claim 2, characterized in that: The beam support mechanism (2) further comprises a positioning rib plate (6); the upper support plate (21) and the beam (5) are fixed to the positioning rib plate (6) respectively.

4. A mine- underground-pump-house-chamber-suspension-of- crane-rail device, as claimed in claim 2, wherein: The outside of the support vertical plate (24) is further fixed with a support limiting plate (25) perpendicular to the support vertical plate (24) and used for abutting against the side slope (1).

5. A mine- in- pit pump house chamber hoist track suspension as claimed in claim 2, characterised in that: The anchor rod (27) and the hole wall of the anchor rod hole are filled with a resin anchoring agent (26); an anchoring agent blocking ring (28) is installed on the anchor rod (27) to prevent the outflow of the anchoring agent (26) before it is shaped.

6. A mine in-pit pump house chamber hoist rail suspension as claimed in claim 1 wherein: Two positioning angle steels (7) are arranged between the two adjacent beams (5) and cross each other; one end of the positioning angle steel (7) is connected to the beam (5) and the other end is connected to the crane rail (3) below the adjacent beam (5).

7. A mine shaft pump chamber cavern hoist rail suspension as claimed in any one of claims 1 to 6, characterised in that: The suspension mechanism (4) comprises a connecting plate (41) attached to the lower side of the beam (5); the lower side of the connecting plate (41) is fixed to the upper side of the crane rail (3); the suspension mechanism (4) further comprises a connecting bolt (44) passing through the connecting plate (41) and the lower flange plate of the I-beam of the beam (5).

8. A mine- underground-pump-house-chamber-suspension-of- crane-rail device, according to claim 7, characterised in that: Two connecting nuts (43) are connected to the connecting bolt (44); one of them is used as a connecting fixed nut and is pressed against the upper side of the lower flange plate of the I-beam of the beam (5) through a horizontal adjusting block (42); the other is used as a locking nut and is pressed against the upper side of the connecting fixed nut.

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