Heavy monorail crane track for coal mine

Abstract

The invention provides a coal mine heavy monorail crane rail which comprises a straight rail, a horizontal bent rail used for horizontal turning, an upper connecting piece and a lower connecting piece used for connecting the upper end and the lower end of two adjacent monorails, and a mounting hanging assembly connected with the upper connecting piece and used for hanging the rail 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 structural improvements including arrangement of the vertical bent rail, the upper connecting piece and the lower connecting piece and the like, 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, the service life of the train train is prolonged, and the monorail crane rail is higher in mounting efficiency and better in safety during mounting.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine monorail crane systems, and in particular to a heavy-duty monorail crane track for coal mines. Background Art

[0002] The monorail crane system is one of the most important auxiliary transportation systems in coal mines. It is widely used in the transportation of materials, equipment and personnel in narrow spaces such as tunnels and mines. In the monorail crane auxiliary transportation system, the monorail crane track is the basis of the system. Figures 1 to 3 As shown, the track itself adopts Figure 3 The I140V type track of the structure shown, the existing upper connecting piece 102 and the existing lower connecting piece 103 used to connect two adjacent existing straight rails 101 adopt the structure disclosed in the patent document with the publication number CN101102950A. The existing I140V type track has many accessories when connected, and the manufacturing and installation costs are high, and the installation and disassembly are troublesome. More importantly, with the increasing tonnage of coal mining and support equipment, the load-bearing capacity of the existing I140V type track can no longer effectively meet the transportation requirements of coal mining equipment. In the transportation of large equipment projects, the track is often damaged, which seriously affects the transportation efficiency and transportation safety. The patent document with the authorization announcement number CN203006755U discloses a heavy-duty monorail hanging track, which has made structural improvements to the upper connecting piece and the hanging assembly, but its track and lower connecting piece still adopt the corresponding structure of the traditional I140V type track, and cannot achieve real heavy load; the patent document with the application publication number CN113562611A proposes a high-performance heavy-duty track and its matching connecting piece, the track adopts the I250 type track, and the upper connecting piece is improved, and the track includes an upper web, an upper flange, a lower web and a lower flange arranged in sequence from top to bottom. The one-piece formed part is composed of flanges, and the front and rear ends of the upper web are respectively provided with connection holes. The flexible connection between the front and rear tracks is realized by setting the inclined surface at the end of the track and the arc-shaped long hole. The invention is designed as a flexible connection, which leads to the weakening of the rigidity of the track joint. During heavy-load transportation, the moving locomotive suddenly brakes, which is easy to produce abnormal force here, resulting in damage to the bottom connector of the track; the purpose of designing the arc-shaped long hole is to achieve vertical bending of the straight track. This structure will inevitably cause gaps and height differences at the track joints, affecting the service life of the track and the operating efficiency and safety of the monorail crane. It is important that, as mentioned above, the various existing monorail crane track systems, their single tracks are all straight rails, and the two adjacent straight rails can be movably connected by upper and lower connectors. It is common that the rigidity of the entire track system is poor and cannot be effectively overloaded, there is misalignment in the track joints, and the angle affects the passability and stability of the monorail crane during operation; when the track is installed, due to the connector accessories and the need for welding technology, installation and maintenance and replacement of components are troublesome. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the prior art and provide an all-round innovative heavy-duty monorail hanging track for coal mines.

[0004] The technical solution of the present invention is: the heavy-duty monorail hanging track of the coal mine of the present invention includes a straight rail, a horizontal curved rail for horizontal bending, an upper connecting member and a lower connecting member for connecting the upper and lower ends of two adjacent monorails, and an installation and hanging assembly connected to the upper connecting member for hanging the track on the tunnel. Its structural characteristics are: it also includes a vertical curved rail for upward and downward bending, and a transition rail for transition connection between the straight rail and the horizontal curved rail and between the horizontal curved rail and the vertical curved rail; the above-mentioned upper connecting member and the lower connecting member are both fixedly connected by bolts to connect the two adjacent monorails.

[0005] A further solution is: the straight rail is a casting composed of an upper web, an upper flange, a lower web, a lower flange and a lower skirt plate provided on both sides below the lower flange; the lower end surface of the lower flange and the inner end surfaces of the two lower skirt plates form a groove; and at least one first connecting screw hole is provided on each side of the upper web.

[0006] A further solution is that the transition rail is a straight single rail and the cross-sectional shape of the transition rail is the same as that of 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.

[0007] A further solution is that the above-mentioned horizontal curved rail is arc-shaped as a whole, the cross-sectional shape of the horizontal curved rail is the same as that of the straight rail, and a second connecting flange is provided on each side of the upper web of the horizontal curved rail for connection.

[0008] A further solution is that the vertical curved rail is arc-shaped as a whole, the cross-sectional shape of the vertical curved rail is the same as that of the straight rail, and at least one third connecting screw hole is provided on both sides of the upper web of the vertical curved rail for connection.

[0009] A further solution is: the above-mentioned upper connecting part includes a clamping plate, a clamping fixing bolt, a swing frame, a connecting tongue, a pin shaft and a hanging shaft; the above-mentioned clamping plate is composed of a straight plate part and an arc-shaped plate part integrally arranged above the middle of the straight plate part, and two sides of the straight plate part of the clamping plate are respectively provided with more than one bolt hole for connection, and the middle of the arc-shaped plate part of the clamping plate is provided with an axial hole; the clamping plate is provided with two opposite pieces; the clamping fixing bolts are matched with the bolt holes of the clamping plate; the upper end of the connecting tongue is integrally connected with the swing frame, the middle of the lower end of the connecting tongue is provided with an axial hole and the lower end of the connecting tongue extends downward from the middle of the swing frame; a pin shaft is provided on each side of the upper part of the swing frame; a hanging shaft is provided, and the hanging shaft passes through the axial hole in the middle of the arc-shaped plate parts of the two clamping plates and the axial hole of the connecting tongue extending between the arc-shaped plate parts of the two clamping plates to movably connect the swing frame relative to the two clamping plates. When in use, the two clamping plates fix two adjacent monorails, each of which has a bolt hole at one end, with the clamping fixing bolt.

[0010] A further solution is: the above-mentioned lower connecting member includes a bolt sleeve, a bolt and a nut; the above-mentioned bolt sleeve is a hollow structural member, and a bolt sleeve is fixedly arranged at both ends of the lower side of each straight rail, transition rail, horizontal curved rail and vertical curved rail, and a set of bolts and nuts is arranged between each two adjacent monorails. When in use, the bolt is passed through a bolt sleeve of each of the two adjacent monorails and then locked with a nut, thereby achieving fixed connection of the lower ends of the two adjacent monorails.

[0011] A further solution is: the above-mentioned installation and hanging assembly includes two anchors and two hanging chains, the upper ends of the two hanging chains are each fixedly connected to an anchor, and the lower ends of the two hanging chains are each fixedly connected to a pin shaft of the above-mentioned upper connecting member, and the anchors are fixedly connected to the tunnel when in use.

[0012] The present invention has positive effects: (1) The present invention innovatively sets a vertical curved rail at the up-down curve in the lane and connects with other monorails including straight rails as needed. Compared with the structure of the prior art that generally adopts straight rails at the up-down curve, the present invention makes the connection between adjacent monorails at the up-down curve smoother, effectively solves the joint gap and misalignment phenomenon that is common between adjacent monorails at the up-down curve in the prior art, and improves the operation efficiency, service life and operation safety of the monorail crane train. (2) The present invention improves the structure of the upper and lower connecting parts, and the adjacent monorails are connected by bolts during installation. Compared with the structure and connection method of the existing upper and lower connecting parts, on the one hand, the rigidity of the track as a whole is better and the bearing capacity is stronger; on the other hand, it can effectively overcome the joint gap and height difference misalignment phenomenon that is common at the connection in the prior art, further making the vehicle pass more smoothly, improving the operation efficiency, service life and operation safety of the monorail crane train, and in addition, it can avoid the need to use electric welding technology during installation in the prior art, and improve the installation efficiency and safety. (3) The present invention improves the structural design of each monorail, so that its load-bearing and bending resistance are significantly improved compared with the existing I140V track, making it suitable for heavy loads; at the same time, compared with the existing I250 track, its bending resistance is better, thereby improving the bearing capacity of the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the existing I140V type monorail hanging track system installed in the laneway; Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle; Figure 3 for Figure 1 Schematic diagram of the end structure of a single I140V straight rail; Figure 4 It is a schematic diagram of an exemplary structure of a section of a coal mine heavy-duty monorail hanging track of the present invention; Figure 5 It is a structural schematic diagram of the connection and hanging installation between two adjacent rails of the present invention; Figure 6 for Figure 4 Schematic diagram of the structure of the middle straight rail; Figure 7 for Figure 4 Schematic diagram of the end structure of the middle straight rail; Figure 8 for Figure 4 A schematic diagram of the structure of the intermediate transition rail, which also shows the bolt passing sleeve of the lower connecting member arranged thereon; Fig. 9 for Figure 4 A schematic diagram of the structure of the middle horizontal curved rail, which also shows the bolt passing sleeve of the lower connecting member arranged thereon; Fig.10 for Figure 4 A schematic diagram of the structure of the middle vertical curved rail, which also shows the bolt passing sleeve of the lower connecting member arranged thereon; Fig.11 It is a schematic diagram of a section of the installation structure of the present invention passing through a vertical bend when installed in a lane.

[0014] The reference numerals in the above drawings are as follows: Lane 100, existing straight rail 101, existing upper connecting piece 102, existing lower connecting piece 103; Straight rail 1, upper web 11, first connecting screw hole 11-1, upper flange 12, lower web 13, lower flange 14, lower skirt 15, groove 16; Transition rail 2, second connection screw hole 21, first connection flange 22; Horizontal curved rail 3, rail body 31, second connecting flange 32; Vertical curved rail 4, convex surface 41, third connecting screw hole 42; Upper connecting member 5, clamping plate 51, clamping bolt 52, swing frame 53, connecting tongue 54, hanging shaft 55; Lower connecting member 6, bolt through sleeve 61, bolt 62, nut 63; Install the hook assembly 7, the anchor 71, and the hook chain 72. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] (Example 1) See Figures 3 to 11 The heavy-duty monorail hanging track for coal mines of this embodiment is mainly composed of a straight rail 1, a transition rail 2, a horizontal curved rail 3, a vertical curved rail 4, an upper connecting piece 5, a lower connecting piece 6 and an installation and hanging assembly 7.

[0017] See also Figure 6 and Figure 7The straight rail 1 is a casting composed of an upper web 11, an upper flange 12, a lower web 13, a lower flange 14, and a lower skirt 15 provided 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 skirts 15 form a groove 16; and at least one first connecting screw hole 11-1 is provided on both sides of the upper web 11 for connection. Compared with the existing I140V track, the straight rail 1 of this embodiment has a significantly different structure and a much larger cross-sectional size than the existing I140V track, so its load-bearing and bending resistance are significantly better than the existing I140V track and is suitable for heavy loads; at the same time, compared with the existing I250 track, the straight rail 1 of this embodiment has a structural improvement design by providing a lower skirt 15 on both sides of the lower end surface of the lower flange 14 and forming a groove 16 with the lower flange 14, so that the bending resistance of the straight rail 1 of this embodiment is better, and the bearing capacity of the track is improved.

[0018] See also 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 linear rail. The difference from the straight rail 1 is that one side of the upper web of the transition rail 2 is provided with one or more second connecting screw holes 21, and the other side is fixedly provided with a first connecting flange 22 for connection.

[0019] See also Fig. 9 The horizontal curved rail 3 is used for the horizontal bend of the monorail crane track. The cross-sectional shape of the horizontal curved rail 3 is the same as that of the straight rail 1. The difference from the straight rail 1 is that the rail body 31 of the horizontal curved rail 3 is arc-shaped, and a second connecting flange 32 is provided on each side of the upper web of the horizontal curved rail 3. When in use, the horizontal curved rails 3 can be cascaded with each other according to the length of the horizontal bend of the monorail crane track, or the horizontal curved rail 3 can be combined and cascaded with the straight rail 1 and the transition rail 2 as needed.

[0020] See also Fig.10 and Fig.11The vertical curved rail 4 is used for the up and down bends of the monorail crane track. The cross-sectional shape of the vertical curved rail 4 is the same as that of the straight rail 1. The difference from the straight rail 1 is that the rail body of the vertical curved rail 4 is arc-shaped. Accordingly, the vertical curved rail 4 has a convex surface 41 and a concave surface opposite to the convex surface 41. Both sides of the upper web of the vertical curved rail 4 are respectively provided with one or more third connecting screw holes 42 for connection. When in use, at the up and down bends of the monorail crane track, the vertical curved rail 4 is arranged with the convex surface 41 facing upward or the concave surface facing upward according to the curved shape of the lane 100, and is connected to the straight rail 1, or connected with other rail combinations through the transition rail 2. In this embodiment, the vertical curved rail 4 is innovatively arranged for passing the up and down bends. Compared with the method of passing the up and down bends with the straight rail commonly used in the prior art, there is no joint gap or misalignment at the rail connection, so that the vehicle passes more smoothly, and the operation efficiency, service life and operation safety of the monorail crane train are improved.

[0021] See also Figure 4 and Figure 5 The upper connecting member 5 is different from the common structure in the prior art. In this embodiment, the upper connecting member 5 is mainly composed of a clamping plate 51, a clamping bolt 52, a swing frame 53, a connecting tongue 54, a pin 55 and a hanging shaft 56; the clamping plate 51 is composed of a straight plate portion and an arc-shaped plate portion integrally arranged above the middle of the straight plate portion, and the two sides of the straight plate portion of the clamping plate 51 are respectively provided with more than one bolt hole for connection, and the middle of the arc-shaped plate portion of the clamping plate 51 is provided with an axial hole; the clamping plate 51 is provided with two opposite pieces. The clamping bolt 52 is matched with the bolt hole of the clamping plate 51, and the swing frame 53 is provided with one; the upper end of the connecting tongue 54 is integrally connected with the swing frame 53, and the middle of the lower end of the connecting tongue 54 is provided with an axial hole and the lower end of the connecting tongue 54 extends downward from the middle of the swing frame 53. A pin shaft 55 is provided on each side of the upper part of the swing frame 53; a hanging shaft 56 is provided, and the hanging shaft 56 passes through the shaft hole in the middle of the arc-shaped plate part of the two clamping plates 51 and the shaft hole of the connecting tongue 54 extending between the arc-shaped plate parts of the two clamping plates 51, so that the swing frame 53 is movably connected relative to the two clamping plates 51. When in use, the two clamping plates 51 are fixedly connected to the upper side of the two monorails each provided with a bolt hole by clamping the fixing bolts 52, for example, the upper parts of two adjacent straight rails 1 are fixedly connected, or a straight rail 1 is fixedly connected to the upper part of a transition rail 2, or a straight rail 1 is fixedly connected to the upper end of a vertical curved rail 4.

[0022] The lower connecting member 6 is used to fix the lower ends of two adjacent monorails. Different from the common structure in the prior art, in this embodiment, the lower connecting member 6 is mainly composed of a bolt sleeve 61, a bolt 62 and a nut 63; the bolt sleeve 61 is a hollow structural member, and a bolt sleeve 61 is fixedly arranged in the grooves on both sides of each straight rail 1, transition rail 2, horizontal curved rail 3 and vertical curved rail 4. A set of bolts 62 and nuts 63 is arranged between each two adjacent monorails. When in use, the bolt 62 passes through one bolt sleeve 61 of each of the two adjacent monorails and is then locked with the nut 63, thereby achieving fixed connection of the lower ends of the two adjacent monorails.

[0023] As can be seen from the foregoing, in this embodiment, the two adjacent monorails are fixedly connected by the upper connecting member 5 and the lower connecting member 6 by bolt connection, thereby avoiding the need to use electric welding technology during installation in the prior art, and the installation is convenient and quick. In addition, the upper and lower ends of the two adjacent monorails are fixedly connected by bolts. Compared with the existing connection method, on the one hand, the overall rigidity of the track is better and the bearing capacity is stronger; on the other hand, it can effectively overcome the joint gaps and height difference misalignment phenomena that are common in the connection of the prior art, further making the vehicle pass more smoothly, thereby improving the operating efficiency, service life and operating safety of the monorail crane train.

[0024] The installation hanging assembly 7 is used for the suspension installation of the monorail hanging track on the tunnel 100. The installation hanging assembly 7 is a prior art, which includes two anchors 71 and two hanging chains 72. The upper ends of the two hanging chains 72 are respectively fixedly connected to an anchor 71, and the lower ends of the two hanging chains 72 are respectively fixedly connected to a pin shaft 55 of the upper connecting member 5.

[0025] The above embodiments are descriptions of specific implementation methods of the present invention rather than limitations of the present invention. Technical personnel in the relevant technical field can make various changes and modifications to obtain corresponding equivalent technical solutions without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should be included in the patent protection scope of the present invention.

Claims

1. A heavy-duty monorail hanging track for coal mines, comprising a straight rail, a horizontal curved rail for horizontal bending, an upper connecting member and a lower connecting member for connecting the upper and lower ends of two adjacent monorails, and an installation and hanging assembly connected to the upper connecting member for hanging the track on the roadway, characterized in that: It also includes a vertical curved rail for turning up and down, and a transition rail for transition connection between the straight rail and the horizontal curved rail and between the horizontal curved rail and the vertical curved rail; the upper connecting member and the lower connecting member are both fixedly connected by bolts to connect two adjacent monorails.

2. The heavy-duty monorail hanging track for coal mines according to claim 1, characterized in that: The straight rail is a casting composed of an upper web, an upper flange, a lower web, a lower flange and a lower skirt plate arranged on both sides below the lower flange; the lower end surface of the lower flange and the inner end surfaces of the two lower skirt plates form a groove; and at least one first connecting screw hole is provided on each side of the upper web.

3. The heavy-duty monorail hanging track for coal mines according to claim 2, characterized in that: The transition rail is a straight single rail and the cross-sectional shape of the transition rail is the same as that of 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.

4. The heavy-duty monorail hanging track for coal mines according to claim 2, characterized in that: The horizontal curved rail is in an arc shape as a whole, and the cross-sectional shape of the horizontal curved rail is the same as that of the straight rail. A second connecting flange is provided on each side of the upper web of the horizontal curved rail for connection.

5. The heavy-duty monorail hanging track for coal mines according to claim 2, characterized in that: The vertical curved rail is in an arc shape as a whole, and the cross-sectional shape of the vertical curved rail is the same as that of the straight rail. Two sides of the upper web of the vertical curved rail are respectively provided with one or more third connecting screw holes for connection.

6. The heavy-duty monorail hanging track for coal mines according to claim 1, characterized in that: The upper connecting part includes a clamping plate, a clamping fixing bolt, a swing frame, a connecting tongue, a pin shaft and a hanging shaft; the clamping plate is composed of a straight plate portion and an arc plate portion integrally arranged above the middle of the straight plate portion, and two sides of the straight plate portion of the clamping plate are respectively provided with more than one bolt hole for connection, and the middle of the arc plate portion of the clamping plate is provided with an axial hole; the clamping plate is provided with two opposite pieces; the clamping fixing bolts are matched with the bolt holes of the clamping plates; the upper end of the connecting tongue is integrally connected with the swing frame, the middle of the lower end of the connecting tongue is provided with an axial hole and the lower end of the connecting tongue extends downward from the middle of the swing frame; a pin shaft is provided on each of the two sides of the upper part of the swing frame; a hanging shaft is provided, and the hanging shaft passes through the axial hole in the middle of the arc plate portions of the two clamping plates and the axial hole of the connecting tongue extending between the arc plate portions of the two clamping plates to movably connect the swing frame relative to the two clamping plates. When in use, the two clamping plates are fixedly connected with two adjacent monorails each having a bolt hole at one end of each upper end by the clamping fixing bolt.

7. The heavy-duty monorail hanging track for coal mines according to claim 1, characterized in that: The lower connecting member includes a bolt sleeve, a bolt and a nut; the bolt sleeve is a hollow structural member, and a bolt sleeve is fixedly arranged at both ends of the lower side of each straight rail, transition rail, horizontal curved rail and vertical curved rail, and a set of bolts and nuts is arranged between each two adjacent monorails. When in use, the bolt passes through a bolt sleeve of each of the two adjacent monorails and is then locked with a nut, thereby achieving fixed connection of the lower ends of the two adjacent monorails.

8. The heavy-duty monorail hanging track for coal mines according to claim 6, characterized in that: The installation and hanging assembly includes two anchors and two hanging chains. The upper ends of the two hanging chains are respectively fixedly connected to an anchor, and the lower ends of the two hanging chains are respectively fixedly connected to a pin shaft of the upper connecting member. When in use, the anchors are fixedly connected to the lane.

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