Heavy monorail crane track for coal mine

Abstract

The utility model provides a heavy monorail crane track for a coal mine, which comprises a straight track, a horizontal bent track for horizontal turning, an upper connecting piece and a lower connecting piece for connecting the upper end and the lower end of two adjacent monorails, and a mounting and hooking assembly connected with the upper connecting piece and used for hoisting the track on a roadway, the vertical bent rail is used for turning in the vertical direction, and the transition rail is used for transition connection between the straight rail and the horizontal bent rail and between the horizontal bent rail and the vertical bent rail. The upper connecting piece and the lower connecting piece fixedly connect the two adjacent monorails in a bolt connection mode. Through the arrangement of the vertical bent rail, the structural improvement of each monorail and the structural improvement of the upper connecting piece and the lower connecting piece, compared with an existing monorail crane rail, the monorail crane rail is better in overall rigidity and higher in bearing capacity, a monorail crane train runs more smoothly and safely, the running efficiency of the train train is improved, and the service life of the train train is prolonged. And the installation efficiency is higher and the safety is better during installation.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mine monorail systems, specifically to a heavy-duty monorail track for coal mines. Background Technology

[0002] Monorail systems are one of the most important auxiliary transportation systems in coal mines, widely used for transporting materials, equipment, and personnel in confined spaces such as roadways and mine shafts. In a monorail auxiliary transportation system, the monorail track is the foundation of the system. Traditional monorail tracks, such as... Figures 1-3 As shown, its track itself adopts the following... Figure 3 The I140V type rail with the structure shown uses the existing upper connector 102 and existing lower connector 103 for connecting two adjacent existing straight rails 101, which adopt the structure disclosed in patent document CN101102950A. The existing I140V type rail has many components, resulting in high manufacturing and installation costs, and is relatively troublesome to install and disassemble. More importantly, as the tonnage of coal mining and support equipment increases, the load-bearing capacity of the existing I140V type rail can no longer effectively meet the transportation requirements of coal mining equipment. Rail damage frequently occurs during the transportation of large equipment, seriously affecting transportation efficiency and safety. Patent document CN203006755U discloses a heavy-duty monorail, which improves the structure of the upper connector and suspension assembly. However, its track and lower connector still adopt the corresponding structure of the traditional I140V type track, and cannot achieve true heavy load. Patent document CN113562611A proposes a high-performance heavy-duty track and its matching connectors. Its track adopts the I250 type track and improves the upper connector. Its track includes an upper web, an upper flange, a lower web, and a lower flange arranged sequentially from top to bottom. The monorail system is a one-piece molded component with connecting holes at the front and rear ends of the upper web plate. Flexible connection between the front and rear rails is achieved through the inclined surface at the rail end and the arc-shaped elongated hole. However, this flexible connection design weakens the rigidity at the rail joints. During heavy-load transport, sudden braking of the locomotive can easily cause abnormal stress at this point, leading to damage to the bottom connecting parts of the rail. The arc-shaped elongated hole is designed to allow straight rails to bend vertically, but this structure inevitably results in gaps and height differences at the rail joints, affecting the service life of the rails and the operating efficiency and safety of the monorail locomotive. Importantly, as mentioned above, existing monorail track systems typically consist of straight rails connected by upper and lower connecting parts. This generally results in poor overall system rigidity, inability to effectively handle heavy loads, misalignment at rail joints, and angles affecting the monorail locomotive's passability and stability. Furthermore, the installation of the rails requires welding for the connecting parts, making installation, maintenance, and component replacement cumbersome. Utility Model Content

[0003] The utility model discloses a kind of coal mine heavy monorail hoist tracks for solving the problems existing in prior art.

[0004] The technical scheme of the utility model is: the utility model discloses a kind of coal mine heavy monorail hoist tracks, including straight rail, horizontal curved rail for horizontal bending, upper connecting piece and lower connecting piece for connecting the upper and lower ends between two adjacent monorails, and installation hanging assembly for being connected with upper connecting piece and being used to hoist track on roadway, its structural features are: further include vertical curved rail for bending up and down, transition rail for transition connection between straight rail and horizontal curved rail and between horizontal curved rail and vertical curved rail;The above-mentioned upper connecting piece and lower connecting piece are fixedly connected using bolt connection mode to adjacent two monorails;The above-mentioned straight rail is the cast piece that is integrally composed of upper web, upper flange, lower web, lower flange and the lower skirt of one piece on the lower flange two sides below;The lower end surface of the above-mentioned lower flange and the inner end surface of two lower skirts form a groove portion;More than one first connecting screw hole is arranged on the two sides of upper web;Transition rail is linear monorail, and the cross-sectional shape of transition rail is same with straight rail, and more than one second connecting screw hole is arranged on one side of the upper web of transition rail, and the other side is fixedly provided with the first connecting flange for connection;Horizontal curved rail is arc-shaped as a whole, and the cross-sectional shape of horizontal curved rail is same with straight rail, and more than one second connecting flange for connection is arranged on the two sides of the upper web of horizontal curved rail;Vertical curved rail is arc-shaped as a whole, and the cross-sectional shape of vertical curved rail is same with straight rail, and more than one third connecting screw hole for connection is arranged on the two sides of the upper web of vertical curved rail.

[0005] Further scheme is: the above-mentioned upper connecting piece includes clamping plate, clamping fixed bolt, swing frame, connecting tongue, pin shaft and hanging shaft;The above-mentioned clamping plate is integrally composed of straight plate portion and arc plate portion integrally arranged in the middle upper portion of straight plate portion, and more than one bolt hole for connection is arranged on the two sides of the straight plate portion of clamping plate, and shaft hole is arranged at the middle of the arc plate portion of clamping plate;Clamping plate is provided with two opposite blocks;Clamping fixed bolt is matched with the bolt hole of clamping plate;The upper end of connecting tongue is integrally connected with swing frame, and shaft hole is arranged at the middle of the lower end of connecting tongue, and the lower end of connecting tongue extends downward from the middle of swing frame;Pin shaft is arranged in the upper portion of swing frame on both sides;Hanging shaft is provided with one, and swing frame is movably connected with respect to two clamping plates through the shaft hole of the middle of the arc plate portion of two clamping plates and the shaft hole of connecting tongue extending between the arc plate portion of two clamping plates, and when using, two clamping plates are fixedly connected with adjacent two monorails through clamping fixed bolt, and each upper end is provided with bolt hole.

[0006] A further solution is as follows: the aforementioned lower connecting component includes a bolt sleeve, a bolt, and a nut; the aforementioned bolt sleeve is a hollow structural component, and one bolt sleeve is fixedly installed at each of the lower ends of each straight rail, transition rail, horizontal curved rail, and vertical curved rail. A set of bolts and nuts is installed between each pair of adjacent single rails. In use, the bolt is passed through one bolt sleeve of each pair of adjacent single rails and then locked with a nut, thereby achieving a fixed connection between the lower ends of the two adjacent single rails.

[0007] A further solution is as follows: The above-mentioned installation and mounting assembly includes two anchors and two mounting chains. The upper end of each of the two mounting chains is fixedly connected to an anchor, and the lower end of each of the two mounting chains is fixedly connected to a pin of the above-mentioned upper connector. When in use, the anchors are fixedly connected to the tunnel.

[0008] This utility model has the following positive effects: (1) This utility model innovatively sets a vertical curved rail at the vertical curve in the roadway and connects it with other monorails, including straight rails, as needed. Compared with the existing technology, which generally uses straight rails to bend at vertical curves, this utility model makes the connection between adjacent monorails at vertical curves smoother. It effectively solves the common problem of gaps and misalignment between adjacent monorails at vertical curves in the existing technology, and improves the operating efficiency, service life and safety of monorail crane trains. (2) This utility model improves the structure of the upper and lower connecting parts. During installation, adjacent monorails are connected by bolts. Compared with the existing structure and connection method of the upper and lower connecting parts, on the one hand, it can make the overall rigidity of the track better and the load-bearing capacity stronger; on the other hand, it can effectively overcome the common problem of gaps and misalignment at the connection in the existing technology, and further make the vehicle pass more smoothly, improve the operating efficiency, service life and safety of monorail crane trains. In addition, it can avoid the need to use electric welding process during installation in the existing technology, and improve the installation efficiency and safety. (3) Through structural improvement design of each monorail, this utility model significantly improves the load-bearing and bending resistance of the existing I140V rail, making it suitable for heavy loads; at the same time, compared with the existing I250 rail, it has better bending resistance and improves the load-bearing capacity of the rail. Attached Figure Description

[0009] Figure 1 This is a structural schematic diagram of the existing I140V type monorail overhead crane track system installed in the tunnel;

[0010] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0011] Figure 3 for Figure 1 Schematic diagram of the end face structure of a single I140V straight rail;

[0012] Figure 4 It is a segmental structure schematic view of the track of the coal mine heavy single-track hoist of the utility model;

[0013] Figure 5 It is a structure schematic view of the connection and hanging installation between the two adjacent tracks of the utility model;

[0014] Figure 6 It is a structure schematic view of the straight track of the utility model; Figure 4

[0015] It is a structure schematic view of the end face of the straight track of the utility model; Figure 7 Figure 4 It is a structure schematic view of the transition track of the utility model, and the bolt passing sleeve of the lower connecting piece arranged thereon is also shown in the figure;

[0016] Figure 8 Figure 4 It is a structure schematic view of the horizontal bent track of the utility model, and the bolt passing sleeve of the lower connecting piece arranged thereon is also shown in the figure;

[0017] Figure 9 It is a structure schematic view of the vertical bent track of the utility model, and the bolt passing sleeve of the lower connecting piece arranged thereon is also shown in the figure; Figure 4

[0018] Figure 10 It is a structure schematic view of the vertical bent track of the utility model, and the bolt passing sleeve of the lower connecting piece arranged thereon is also shown in the figure; Figure 4

[0019] Figure 11 It is a structure schematic view of the vertical bent track of the utility model, and the bolt passing sleeve of the lower connecting piece arranged thereon is also shown in the figure;

[0020] The reference signs in the above-mentioned drawings are as follows:

[0021] Tunnel 100, existing straight track 101, existing upper connecting piece 102, existing lower connecting piece 103;

[0022] Straight track 1, upper web plate 11, first connecting screw hole 11-1, upper flange 12, lower web plate 13, lower flange 14, lower skirt plate 15, groove part 16;

[0023] Transition track 2, second connecting screw hole 21, first connecting flange 22;

[0024] Horizontal bent track 3, track body 31, second connecting flange 32;

[0025] Vertical bent track 4, convex surface 41, third connecting screw hole 42;

[0026] Upper connecting piece 5, clamping plate 51, clamping fixing bolt 52, swing rack 53, connecting tongue 54, hanging connection shaft 55;

[0027] ​​​​Lower connecting piece 6, bolt through sleeve 61, bolt 62, nut 63;

[0028] Mounting and hooking assembly 7, anchor 71, hooking chain 72. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.

[0030] (Embodiment 1)

[0031] See Figures 3-11 The coal mine heavy monorail track of the embodiment mainly comprises straight rails 1, transition rails 2, horizontal curved rails 3, vertical curved rails 4, upper connecting pieces 5, lower connecting pieces 6 and mounting and hooking assemblies 7.

[0032] See Figure 6 and Figure 7 The straight rail 1 is a casted piece composed of an upper web plate 11, an upper flange 12, a lower web plate 13, a lower flange 14 and two lower skirt plates 15 arranged on both sides below the lower flange 14; the lower end surface of the lower flange 14 and the inner end surfaces of the two lower skirt plates 15 form a groove part 16; and more than one first connecting screw hole 11-1 is arranged on each side of the upper web plate 11 for connection. The straight rail 1 of the embodiment is obviously different in structure and far larger in cross-sectional size than the existing I140V track, and thus its load bearing and bending resistance are both significantly better than those of the existing I140V track, which is suitable for heavy load; at the same time, compared with the existing I250 track, the straight rail 1 of the embodiment is improved in structure by arranging one lower skirt plate 15 on each side of the lower end surface of the lower flange 14 and forming a groove part 16 with the lower flange 14, so that the bending resistance of the straight rail 1 of the embodiment is better and the load bearing capacity of the track is improved.

[0033] See Figure 8 The transition rail 2 is used for transition connection between the straight rail 1 and the horizontal curved rail 3 and between the horizontal curved rail 3 and the vertical curved rail 4; the cross-sectional shape of the transition rail 2 is the same as that of the straight rail 1, and the rail body of the transition rail 2 is also a straight rail, and the difference from the straight rail 1 is that one side of the upper web plate of the transition rail 2 is provided with more than one second connecting screw hole 21, and the other side is fixedly provided with a first connecting flange 22 for connection.

[0034] See Figure 9 The horizontal curved rail 3 is used for horizontal curved sections of the monorail track, and the cross-sectional shape of the horizontal curved rail 3 is the same as that of the straight rail 1, and the difference from the straight rail 1 is that the rail body 31 of the horizontal curved rail 3 is in an arc shape, and each side of the upper web plate of the horizontal curved rail 3 is provided with a second connecting flange 32 for connection. In use, the horizontal curved rails 3 can be cascaded with each other according to the length of the curved section of the monorail track, or the horizontal curved rail 3 can be combined and cascaded with the straight rail 1 and the transition rail 2 as needed.

[0035] Referring to Figure 10 and Figure 11 , the vertical curved rail 4 is used for passing the upward and downward curve, the cross-sectional shape of the vertical curved rail 4 is the same as that of the straight rail 1, and the rail body of the vertical curved rail 4 is arc-shaped, and the vertical curved rail 4 has a convex surface 41 and a concave surface opposite to the convex surface 41, and each side of the upper web of the vertical curved rail 4 is provided with one or more third connecting screw holes 42 for connection, and in use, when passing the upward and downward curve, the vertical curved rail 4 is arranged in a way that the convex surface 41 faces upward or the concave surface faces upward according to the curved shape of the roadway 100, and is connected with the straight rail 1 or is connected with other rail in combination through the transition rail 2. In this embodiment, the vertical curved rail 4 is innovatively arranged for passing the upward and downward curve, compared with the way of passing the upward and downward curve by using the straight rail in the prior art, there is no gap and misalignment at the rail connection, so that the vehicle passes more smoothly, and the running efficiency, service life and running safety of the monorail hoist train are improved.

[0036] Referring to Figure 4 and Figure 5 , the upper connecting piece 5 is different from the structure commonly used in the prior art, and in this embodiment, the upper connecting piece 5 mainly consists of a clamping plate 51, a clamping fixing bolt 52, a swing bracket 53, a connecting tongue 54, a pin shaft 55 and a hanging shaft 56; the clamping plate 51 is integrally composed of a straight plate part and an arc plate part integrally provided above the middle of the straight plate part, each side of the straight plate part of the clamping plate 51 is provided with one or more bolt holes for connection, and the middle of the arc plate part of the clamping plate 51 is provided with a shaft hole; the clamping plate 51 is provided with two opposite clamping plates. The clamping fixing bolt 52 is arranged in the bolt hole of the clamping plate 51 in a matched manner, and the swing bracket 53 is provided with one; the upper end of the connecting tongue 54 is integrally connected with the swing bracket 53, and the lower end of the connecting tongue 54 is provided with a shaft hole in the middle and extends downward from the middle of the swing bracket 53. The pin shaft 55 is provided with one on each side of the upper part in the swing bracket 53; the hanging shaft 56 is provided with one, and the hanging shaft 56 passes through the shaft holes in the middle of the arc plate parts of the two clamping plates 51 and the shaft hole of the connecting tongue 54 extending between the two clamping plates 51 to movably connect the swing bracket 53 relative to the two clamping plates 51, and in use, the two clamping plates 51 are fixedly connected with the upper side of the two monorails each provided with a bolt hole through the clamping fixing bolt 52, for example, the upper sides of the adjacent two straight rails 1 are fixedly connected, or the upper sides of a straight rail 1 and a transition rail 2 are fixedly connected, or the upper end of a straight rail 1 and a vertical curved rail 4 are fixedly connected.

[0037] The lower connecting piece 6 is used for fixedly connecting the lower ends of two adjacent monorails, and is different from the common structure in the prior art. In the embodiment, the lower connecting piece 6 mainly comprises a bolt passing sleeve 61, a bolt 62 and a nut 63. The bolt passing sleeve 61 is a hollow structural member, and one bolt passing sleeve 61 is fixedly arranged in each of the two side groove portions of the straight rail 1, the transition rail 2, the horizontal bent rail 3 and the vertical bent rail 4. The bolt 62 and the nut 63 are arranged between each of two adjacent monorails. In use, the bolt 62 passes through the bolt passing sleeve 61 of each of the two adjacent monorails and is locked by the nut 63, so as to fixedly connect the lower ends of the two adjacent monorails.

[0038] As can be seen from the foregoing, in the embodiment, the upper connecting piece 5 and the lower connecting piece 6 are used for fixedly connecting the two adjacent monorails by means of bolt connection, so as to avoid the use of electric welding process in the prior art during installation, and the installation is convenient and fast. In addition, the upper ends and the lower ends of the two adjacent monorails are fixedly connected by bolts, and compared with the prior connection mode, on the one hand, the rigidity of the whole track is better, and the bearing capacity is stronger; on the other hand, the joint gap and the height error at the connection position in the prior art can be effectively overcome, so as to further make the vehicle pass more smoothly, and improve the operation efficiency, service life and operation safety of the monorail hoist train.

[0039] The installation and hanging assembly 7 is used for the suspension installation of the monorail track on the roadway 100. The installation and hanging assembly 7 is the prior art, which comprises two anchor pieces 71 and two hanging chains 72. The upper ends of the two hanging chains 72 are fixedly connected with the two anchor pieces 71 respectively, and the lower ends of the two hanging chains 72 are fixedly connected with the pin shaft 55 of the upper connecting piece 5 respectively.

[0040] The above embodiment is a description of the specific implementation manner of the utility model, rather than a limitation of the utility model. Those skilled in the art can make various transformations and changes without departing from the spirit and scope of the utility model, so as to obtain corresponding equivalent technical solutions. Therefore, all equivalent technical solutions should be included in the patent protection scope of the utility model.

Claims

1. A heavy-duty monorail for coal mines, comprising a straight rail, a horizontal curved rail for horizontal curves, an upper connector and a lower connector for connecting the upper and lower ends of two adjacent monorails, and an installation and mounting assembly connected to the upper connector for hoisting the rail onto the roadway, characterized in that: It also includes vertical curved rails for up and down curved, transition rails for transition connection between straight rails and horizontal curved rails and between horizontal curved rails and vertical curved rails; the upper and lower connectors are both fixedly connected with adjacent two monorails by bolt connection; the straight rail is a casted part integrally composed of an upper web, an upper flange, a lower web, a lower flange and two lower skirts each arranged on the lower flange; the lower end surface of the lower flange and the inner end surfaces of the two lower skirts form a groove; each side of the upper web is provided with one or more first connecting screw holes; the transition rail is a straight monorail and has the same cross-sectional shape as the straight rail, one side of the upper web of the transition rail is provided with one or more second connecting screw holes, and the other side is fixedly provided with a first connecting flange for connection; the horizontal curved rail has an overall arc shape and has the same cross-sectional shape as the straight rail, and the upper web of the horizontal curved rail is provided with two second connecting flanges for connection on both sides; the vertical curved rail has an overall arc shape and has the same cross-sectional shape as the straight rail, and the upper web of the vertical curved rail is provided with one or more third connecting screw holes for connection on both sides.

2. A heavy monorail track for coal mines according to claim 1, characterised in that: The upper connector includes a clamping plate, a clamping fixing bolt, a swing bracket, a connecting tongue, a pin shaft and a hanging shaft; the clamping plate is integrally composed of a straight plate part and an arc plate part integrally arranged above the middle of the straight plate part, each side of the straight plate part of the clamping plate is provided with one or more screw holes for connection, and the middle of the arc plate part of the clamping plate is provided with a shaft hole; the clamping plate is provided with two opposite clamping plates; the clamping fixing bolt is matched with the screw holes of the clamping plate; the upper end of the connecting tongue is integrally connected with the swing bracket, the lower end of the connecting tongue is provided with a shaft hole in the middle and the lower end of the connecting tongue extends downward from the middle of the swing bracket; the pin shaft is arranged on both sides of the upper part of the swing bracket; the hanging shaft is arranged with one, and the hanging shaft passes through the shaft holes in the middle of the arc plate parts of the two clamping plates and the shaft hole of the connecting tongue extending between the arc plate parts of the two clamping plates to movably connect the swing bracket relative to the two clamping plates; in use, the two clamping plates are fixedly connected with adjacent two monorails each having a screw hole at the upper end by the clamping fixing bolt.

3. The heavy monorail track for coal mines according to claim 1, characterized in that: The lower connector includes a bolt passing sleeve, a bolt and a nut; the bolt passing sleeve is a hollow structural part, one is fixedly arranged at the lower side of each straight rail, transition rail, horizontal curved rail and vertical curved rail, and one set of bolt and nut is arranged between each adjacent two monorails; in use, the bolt passes through one bolt passing sleeve of each adjacent two monorails and is locked by the nut, so as to fixedly connect the lower ends of the adjacent two monorails.

4. The heavy monorail track for coal mines according to claim 2, characterized in that: The mounting and hanging assembly includes two anchor pieces and two hanging chains, the upper ends of the two hanging chains are fixedly connected with one anchor piece respectively, the lower ends of the two hanging chains are fixedly connected with one pin shaft of the upper connector respectively, and in use, the anchor pieces are fixedly connected with the roadway.

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