Underground coal mine self-moving type equipment train

Abstract

The utility model belongs to the technical field of underground coal mine equipment, and particularly relates to an underground coal mine self-moving type equipment train which comprises a mining moving train set, a prop top anchoring device and a propelling device. The mining mobile train set comprises a plurality of train units, and each train unit comprises a train body and a self-moving mechanism; the prop top anchoring device comprises a prop top base and a lifting assembly. The propelling device comprises a group of propelling oil cylinders and a rail guide assembly; according to the complete self-moving type equipment train under the coal mine, the whole train runs through the self-moving mechanism, on the basis that the structural strength and the bearing capacity are not changed, the weight of each train unit is reduced, the arrangement of the prop top anchoring device is combined, the running stability of the equipment train on the slope is improved, and the service life of the equipment train is prolonged. And meanwhile, a rail in the self-moving mechanism is improved, and the balance supporting capacity of the equipment train is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground equipment in coal mines, and in particular relates to a self-moving equipment train in underground coal mines. Background Art

[0002] The self-moving equipment train for coal mines is a vehicle used to transport coal, cables or other materials underground in coal mines. The equipment train is generally composed of several train units connected end to end. Among them, the train units are divided into short, medium and long types according to the length of their bodies. However, no matter which model, the train unit uses the self-moving mechanism of its body to realize the overall movement of the equipment train, and distributes the power required for the movement of the equipment train body to each train unit, which can reflect that the equipment train has a strong load-bearing performance.

[0003] However, since the equipment trains are often loaded with heavy cargo in the coal mines, when the equipment trains travel in the tunnels to the slopes, the equipment trains will slip due to the heavy cargo, which will bring safety hazards to the workers in the coal mines; in addition, the reason why the equipment trains are heavier as a whole is that the cargo they carry is heavier, and the train unit itself is heavier. In addition, when the existing equipment trains move by themselves, since there is no connection between the two tracks, the lifting force of the lifting hydraulic cylinder acts on each track separately, which easily leads to uneven force on the tracks, and thus cannot balance and support the heavier equipment trains.

[0004] Therefore, how to effectively reduce the deadweight of the train unit and avoid the equipment train slipping to the greatest extent while ensuring that the structural strength and bearing capacity of the train unit remain unchanged is a difficulty in current research. Utility Model Content

[0005] In view of this, the utility model provides a self-moving equipment train in a coal mine. On the basis of unchanged structural strength and bearing capacity, by reducing the dead weight of each train unit and combining the setting of a top anchoring device, the stability of the equipment train running on slopes is improved. At the same time, improvements are made to the track in the self-moving mechanism to improve the balance and support capacity of the equipment train.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] Self-propelled equipment train for coal mines, including:

[0008] The mining mobile train group is composed of a plurality of train units connected end to end, wherein each of the train units comprises a train body, a group of supporting feet are arranged in parallel on both sides of the bottom of the train body through a plurality of supporting plates, and a self-moving mechanism is arranged between the supporting feet, and the self-moving mechanism comprises:

[0009] A set of rails is arranged in parallel between the supporting legs, and in the mining mobile train set, the corresponding rails between two adjacent train units are connected by a first hinge, and on this basis, a set of rails is also provided between a plurality of connecting beams;

[0010] A group of telescopic hydraulic cylinders are arranged in parallel, corresponding to a group of the tracks, and the telescopic hydraulic cylinders are rotatably arranged between the tracks and the train body, on this basis, when a group of the telescopic hydraulic cylinders is in a retracted state, the bottom of the track and the bottom of the supporting foot are in the same horizontal plane;

[0011] A group of parallel lifting hydraulic cylinders are symmetrically arranged at the front side of the train body in the forward moving direction and are fixedly connected to the train body. The piston end of each lifting hydraulic cylinder is connected to a rolling assembly, and each group of rolling assemblies is matched with the track.

[0012] In addition, the self-propelled equipment train further comprises: a top anchoring device connected to the front side of the train body in the forward moving direction through a propulsion device, wherein the top anchoring device at least comprises:

[0013] A top base, the top base comprising a fixing surface and a contact surface which are arranged parallel to each other in the upper and lower parts, the contact surface of the top base being in contact with the ground and a side surface connecting the fixing surface and the contact surface being an inclined surface, the inclined surface having a notch portion, the notch portion being connected to a sliding groove provided on the contact surface, and a fixed limiting portion being installed in the sliding groove;

[0014] A lifting assembly, comprising a lifting arm hinged on the fixed surface, the lifting arm as a whole is a hollow cuboid, a lifting arm is slidably sleeved inside the lifting arm, and the lifting arm always extends out of the top of the lifting arm, the top of the lifting arm is hinged with a top plate, and a plurality of convex nails are provided on the upper surface of the top plate;

[0015] In addition, a group of second hinges and a group of third hinges are symmetrically arranged on the left and right sides of the lifting arm, and a group of second hinges are located above a group of third hinges. On this basis, the lifting assembly also includes a group of symmetrically arranged lifting cylinders, a group of cylinder bodies of the lifting cylinders are connected to the second hinges or the third hinges, and a group of piston ends of the lifting cylinders are hinged to the top sides of the lifting arm;

[0016] The lifting assembly also includes a supporting oil cylinder disposed between the top base and the lifting arm, the cylinder body of the supporting oil cylinder is hinged on the fixed surface, and the piston end of the supporting oil cylinder is hinged on the outer wall of the lifting arm, which is used for the rear side flipping of the lifting arm along the forward moving direction of the train body;

[0017] Based on the above structure, the propulsion device includes:

[0018] A group of propulsion cylinders are arranged in parallel, the cylinder bodies of one group of the propulsion cylinders are arranged on the fixed surface of the top base through a fourth hinge, and the piston rods of one group of the propulsion cylinders are arranged on the front side of the forward moving direction of the train body through a fifth hinge, wherein the fourth hinge is a one-way hinge that rotates only in the vertical direction, and the fifth hinge is a two-way hinge that rotates in the vertical and horizontal directions. In addition, a first rotating shaft is also arranged at the bottom of the fourth hinge, and the first rotating shaft vertically penetrates the fixed surface and is rotatably arranged inside the top base;

[0019] A track guide assembly, comprising a guide head, the shape of the guide head matches the notch portion, and in addition, the track guide assembly also comprises two guide posts arranged in parallel, one end of each guide post is connected to the guide head, and the other end is connected through a limit block, and the distance between the two guide posts is the width of the limit portion, thereby, the two guide posts, the limit block and the guide head jointly form a limit cavity that limits the limit portion to move only along the extension direction of the guide posts, and the maximum movement range of the limit portion allowed by the limit cavity is the same as the maximum movement range of the propulsion cylinder and the telescopic hydraulic cylinder;

[0020] On this basis, the track guide assembly is connected to the track through a track connection assembly to provide direction limitation for the self-movement of the track.

[0021] Preferably, in the mining mobile train group, a cable rack is also provided on the train body of each train unit, and the cable rack includes a plurality of columns symmetrically arranged on both sides of the train body, wherein the top ends of the plurality of columns located on the same side of the train body are commonly connected to a long strip-shaped mounting plate, and a plurality of mounting beams are arranged between the two mounting plates.

[0022] More preferably, in each train unit, two rolling rods are provided between the two mounting plates, and the two rolling rods are respectively located at two ends of the mounting plates.

[0023] Furthermore, in each of the train units, a plurality of support beams are provided at the bottom of the train body, and the support beams are crisscrossed to form a grid structure.

[0024] Furthermore, in the self-moving mechanism of each train unit, a group of the telescopic hydraulic cylinders have cylinder bodies rotatably connected to the support beam, and piston ends rotatably connected to the connecting beam between the rails.

[0025] Preferably, in the self-moving mechanism, the rolling assembly includes a roller bracket rotatably connected to the piston end of the lifting hydraulic cylinder, and the roller bracket is surrounded by four baffles. In addition, a group of rollers that cooperate with the upper end surface of the track are also provided inside the roller bracket, and the group of rollers are arranged in a front-to-back order along the forward moving direction of the train body.

[0026] Preferably, in the top anchoring device, the lifting assembly also includes a first positioning hole opened on the lifting arm, and a second positioning hole opened on the lifting arm, wherein the number and size of the first positioning hole and the second positioning hole are the same, and when the cylinder body of a group of the lifting cylinders is connected to the second hinge and the stroke of the group of lifting cylinders is the largest, the positions of the first positioning hole and the second positioning hole correspond to each other, and at this time, the first positioning hole and the second positioning hole are jointly provided with a positioning pin.

[0027] Preferably, in the roof anchoring device, an operating hole is further provided on the side wall of the roof base at a position corresponding to the fourth hinged member.

[0028] More preferably, the track connection assembly includes a connecting portion provided at a group of the track ends, and a connecting seat, a sixth hinge is provided on one side of the connecting seat, and the sixth hinge is rotatably connected to the connecting portion via a second rotating shaft in a vertical direction; the other side of the connecting seat is connected to the ends of two guide columns in the track guide assembly near the limit block via a first hinge.

[0029] The beneficial effects of the utility model are:

[0030] Generally speaking, the utility model is provided with a top anchoring device, and a lifting assembly is used to anchor the top anchoring device between the top and the bottom of the tunnel, so as to provide strong anchoring support for the self-movement of several subsequent train units, prevent the train from slipping, and provide guarantee for safe production in coal mines; in addition, the utility model also redesigns the train body of the train unit, which is lighter than the existing train body, and provides strong conditions for the self-movement of the equipment train; on this basis, the utility model also connects the two tracks of the self-moving mechanism of the train unit into one, so that it is evenly stressed as a whole during the self-movement process, and prevents the two tracks from tilting the equipment train due to uneven stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a schematic diagram of the overall structure of the utility model of a self-moving equipment train for underground coal mines;

[0033] Figure 2 It is a schematic diagram of the specific structure of the train unit in the mining mobile train set;

[0034] Figure 3 It is a schematic diagram of the bottom structure and self-moving mechanism of the train unit;

[0035] Figure 4 It is a partial bottom view schematic diagram of the bottom structure of the train unit;

[0036] Figure 5 It is a schematic diagram of the train unit end structure and rolling assembly;

[0037] Figure 6 It is a schematic diagram of the specific structure of the propulsion device and the top anchoring device;

[0038] Figure 7 It is a schematic diagram of the bottom structure of the top anchoring device;

[0039] Figure 8 It is a schematic diagram of the structure of the top anchoring device viewed from above;

[0040] Fig. 9 It is a schematic diagram of the specific structure of the track guide assembly in the propulsion device;

[0041] Fig.10 It is a schematic diagram of the specific structure of the propulsion device and the top anchoring device in coordination and connection;

[0042] In the figure: a mining mobile train set 1, a train body 101, a support plate 102, a support foot 103, a column 104, a mounting plate 105, a mounting beam 106, a rolling rod 107, and a support beam 108; a top anchoring device 2, a top base 201, a fixing surface 202, a contact surface 203, a slope 204, a notch 205, a sliding groove 206, a limiter 207, a lifting assembly 208, a lifting arm 209, a lifting arm 210, a top plate 211, a second hinge 212, a third hinge 213, and a lifting cylinder 21 4. Support cylinder 215; propulsion device 3, propulsion cylinder 301, fourth hinge 302, fifth hinge 303, guide head 304, guide column 305, limit block 306, track connection assembly 307, first rotating shaft 308, connecting part 309, connecting seat 310, sixth hinge 311, second rotating shaft 312; self-moving mechanism 4, track 401, first hinge 402, connecting beam 403, telescopic hydraulic cylinder 404, lifting hydraulic cylinder 405, rolling assembly 406, roller bracket 407, roller 408. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] The solution provided by the utility model will be described in detail below with reference to the accompanying drawings.

[0046] In this technical solution, if Figure 1 As shown, the coal mine underground self-moving equipment train includes: a mining mobile train set 1, a roof anchoring device 2, and a propulsion device 3.

[0047] like Figure 1-4 As shown, the mining mobile train group 1 is composed of several train units connected end to end, wherein each train unit includes a train body 101, and a group of support feet 103 are parallelly arranged on both sides of the bottom of the train body 101 through several support plates 102, and a self-moving mechanism 4 is arranged between the group of support feet 103. In addition, a cable rack is also provided on the train body 101 of each train unit, and the cable rack includes a plurality of columns 104 symmetrically arranged on both sides of the train body 101, wherein the top ends of the plurality of columns 104 located on the same side of the train body 101 are commonly connected to a long strip-shaped mounting plate 105, and a plurality of mounting beams 106 are arranged between the two mounting plates 105. On this basis, two rolling rods 107 are also arranged between the two mounting plates 105, and the two rolling rods 107 are respectively located at both ends of the mounting plate 105, so as to provide convenient rolling support when loading and unloading cables.

[0048] Based on the above embodiments, the train body 101 provided by the present invention has a simple structure as a whole and is lighter than the train body 101 in the prior art; in each train unit, Figure 3-4 As shown, a plurality of support beams 108 are provided at the bottom of the train body 101, and the support beams 108 are crisscrossed to form a grid structure, thereby ensuring the structural strength and bearing capacity of the entire train body 101, and the specific structure of the cable rack also saves the loading space of the train body 101, reflecting the practicality of the present utility model.

[0049] Based on the above structure, Figure 3 , Figure 5 As shown, the self-moving mechanism 4 includes: a group of rails 401, a group of telescopic hydraulic cylinders 404 arranged in parallel, and a group of lifting hydraulic cylinders 405 arranged in parallel.

[0050] A set of rails 401 are arranged in parallel between the supporting legs 103 , and in the mining mobile train set 1 , the corresponding rails 401 between two adjacent train units are connected by a first hinge 402 , and on this basis, a plurality of connecting beams 403 are also arranged between the set of rails 401 .

[0051] A group of telescopic hydraulic cylinders 404 are arranged in parallel, corresponding to a group of rails 401, and the telescopic hydraulic cylinders 404 are rotatably arranged between the rails 401 and the train body 101. Specifically, the cylinder body of each telescopic hydraulic cylinder 404 is rotatably connected to the support beam 108, and the piston end is rotatably connected to the connecting beam 403 between the rails 401. On this basis, when a group of telescopic hydraulic cylinders 404 is in a retracted state, the bottom of the rail 401 and the bottom of the supporting foot 103 are in the same horizontal plane.

[0052] A group of parallel lifting hydraulic cylinders 405 are symmetrically arranged on the front side of the forward moving direction of the train body 101 and are fixedly connected to the train body 101. The piston end of each lifting hydraulic cylinder 405 is connected to a rolling assembly 406. Each group of rolling assemblies 406 cooperates with the track 401 and is used to walk on the track 401. The rolling assembly 406 includes a roller bracket 407 rotatably connected to the piston end of the lifting hydraulic cylinder 405. The roller bracket 407 is surrounded by four baffles. In addition, a group of rollers 408 that cooperate with the upper end surface of the track 401 are also provided inside the roller bracket 407. The group of rollers 408 are arranged in a front-to-back order along the forward moving direction of the train body 101.

[0053] At this point, the train unit can complete the first part of the self-moving process through the self-moving mechanism 4, that is: in the initial stage of the self-moving process, the telescopic hydraulic cylinder 404 is in an extended state. At this time, the train unit supports the entire train body 101 on the ground through a set of supporting feet 103 and a set of rails 401; the lifting hydraulic cylinder 405 is started, and the rolling component 406 at the piston end of the lifting hydraulic cylinder 405 begins to move toward the rail 401. Since the rail 401 is in contact with the ground at this time, the extending action of the piston end of the lifting hydraulic cylinder 405 is converted into the rising action of the cylinder body of the lifting hydraulic cylinder 405. Taking the forward direction of the train body 101 as a reference, the front side of the train body 101 is lifted by the supporting action of the lifting hydraulic cylinder 405. At this time, the train body 101 is close to the train. Part of the supporting legs 103 on the front side of the body 101 moves with the train body 101 and leaves the ground, while the rear side of the train body 101 is supported on the ground by the supporting legs 103; then, the telescopic hydraulic cylinder 404 begins to contract, and the lifting hydraulic cylinder 405 is also slowly retracted. The track 401 begins to move forward due to the contraction power of the telescopic hydraulic cylinder 404. At this time, the rolling assembly 406 rolls on the track 401. After the telescopic hydraulic cylinder 404 is completely contracted, the lifting hydraulic cylinder 405 is also completely contracted. At this time, the distance that the track 401 moves forward is the entire contraction stroke of the telescopic hydraulic cylinder 404. At this time, the first part of the self-movement process of the train body 101 is completed, which is configured as the track 401 laying process in this embodiment.

[0054] After the track 401 is laid, the forward movement of the train body 101 needs to be completed through the cooperation of the propulsion device 3 and the top anchoring device 2.

[0055] In the present technical solution, the top anchoring device 2 is connected to the front side of the train body 101 in the forward moving direction through the propulsion device 3, such as Figure 6-8 As shown, the top anchoring device 2 includes: a top base 201 and a lifting assembly 208.

[0056] A top base 201, the top base 201 includes a fixing surface 202 and a contact surface 203 which are arranged parallel to each other in the upper and lower directions. The contact surface 203 of the top base 201 is in contact with the ground, and a side surface connecting the fixing surface 202 and the contact surface 203 is an inclined surface 204. The inclined surface 204 has a notch 205, which is connected to a sliding groove 206 provided on the contact surface 203, and a limited position portion 207 is fixedly installed in the sliding groove 206.

[0057] A lifting assembly 208 includes a lifting arm 209 hinged on the fixed surface 202. The lifting arm 209 is a hollow rectangular block as a whole, and a lifting arm 210 is slidably sleeved inside the lifting arm 209. The lifting arm 210 always extends out of the top of the lifting arm 209. The top of the lifting arm 210 is hinged with a top plate 211. The upper surface of the top plate 211 is provided with a plurality of protruding nails. The protruding nails abut against the top surface of the tunnel to prevent the top anchoring device 2 from sliding during the anchoring process in the tunnel.

[0058] In addition, a group of second hinges 212 and a group of third hinges 213 are symmetrically provided on the left and right sides of the lifting arm 209, and a group of second hinges 212 are located above a group of third hinges 213. On this basis, the lifting assembly 208 also includes a group of symmetrically arranged lifting cylinders 214, and the cylinder bodies of a group of lifting cylinders 214 are connected to the second hinges 212 or the third hinges 213, and the piston ends of a group of lifting cylinders 214 are hinged to the two sides of the top of the lifting arm 210.

[0059] Based on the above embodiment, whether the lifting arm 210 is extended or not is controlled by a group of lifting cylinders 214. When the piston rod of the lifting cylinder 214 is extended, the lifting arm 210 is extended from the inside of the lifting arm 209, and the extension distance is the extension stroke of the lifting cylinder 214; the cylinder body of the lifting cylinder 214 can be connected to the second hinge 212 or the third hinge 213, thereby meeting the needs of lanes with different top surface heights, reflecting the practicality of the utility model.

[0060] In addition, the lifting assembly 208 also includes a supporting cylinder 215 arranged between the top support base 201 and the lifting arm 209. The cylinder body of the supporting cylinder 215 is hinged on the fixed surface 202, and the piston end of the supporting cylinder 215 is hinged on the outer wall of the lifting arm 209. It is used to flip the lifting arm 209 to the rear side along the forward moving direction of the train body 101. In the overall top support anchoring device 2, it is used to adapt to the situation of lower top surface height of the tunnel and provide strong support for the top support anchoring action.

[0061] It should be noted that the utility model also provides protection measures for the top anchoring device 2 when it is at the maximum top distance, that is, the lifting assembly 208 also includes a first positioning hole opened on the lifting arm 209, and a second positioning hole opened on the lifting arm 210, wherein the number and size of the first positioning hole and the second positioning hole are the same, when a group of lifting cylinders 214 The cylinder body is connected to the second hinge 212, and the stroke of the group of lifting cylinders 214 is the largest, the position of the first positioning hole corresponds to the position of the second positioning hole. At this time, the first positioning hole and the second positioning hole are jointly provided with a positioning pin.

[0062] In this technical solution, if Figure 6 , Figure 8-10As shown, the propulsion device 3 includes: a group of propulsion cylinders 301 arranged in parallel and a track guide assembly.

[0063] A group of propulsion cylinders 301 are arranged in parallel, and the cylinder bodies of the group of propulsion cylinders 301 are arranged on the fixed surface 202 of the top base 201 through the fourth hinge 302, and the piston rods of the group of propulsion cylinders 301 are arranged on the front side of the forward moving direction of the train body 101 through the fifth hinge 303.

[0064] A track guide assembly includes a guide head 304, the shape of which matches the notch portion 205. In addition, the track guide assembly also includes two parallel guide columns 305, one end of each guide column 305 is connected to the guide head 304, and the other end is connected through a limit block 306. The distance between the two guide columns 305 is the width of the limit portion 207. Therefore, the two guide columns 305, the limit block 306 and the guide head 304 jointly form a limit cavity that limits the limit portion 207 to move only along the extension direction of the guide column 305, and the maximum range of the limit cavity allowing the limit portion 207 to operate is the same as the maximum range of the thrust cylinder 301 and the telescopic hydraulic cylinder 404.

[0065] On this basis, the track guide assembly is connected to the track 401 through the track connection assembly 307 to provide direction limitation for the self-movement of the track 401.

[0066] At this point, the equipment train can complete the second part of the self-movement process through the cooperation of the top anchor device 2 and the propulsion device 3, that is: after the track 401 laying process is completed, since the track guide assembly is connected to the track 401 through the track connecting assembly 307, the track guide assembly follows the track 401 and is also laid along the forward direction of the equipment train; at this time, a group of propulsion cylinders 301 of the propulsion device 3 begin to extend. Since the supporting feet 103 in each train unit in the equipment train are in contact with the ground, the sum of the friction forces between several train units and the ground is much greater than the friction forces between the top anchor device 2 and the ground. Therefore, the extension movement effect of the propulsion cylinder 301 is: based on several train units, the top anchor device 2 is pushed to overcome the friction with the ground and move in the forward direction of the equipment train until the guide head 304 in the track guide assembly cooperates with the notch 205.

[0067] On this basis, the top anchoring device 2 starts to operate, and the cooperation of the lifting cylinder 214 and the supporting cylinder 215 makes the top plate 211 supported on the top surface of the tunnel, and the contact surface 203 of the top base 201 is supported on the ground of the tunnel, forming an anchoring structure supported between the top surface of the tunnel and the ground; then a group of propulsion cylinders 301 begin to shrink. At the same time, in each train unit, the telescopic hydraulic cylinder 404 in the self-moving mechanism 4 begins to extend. Due to the anchoring effect of the top anchoring device 2 and the cooperation of the guide head 304 and the notch 205, the extension of the telescopic hydraulic cylinder 404 cannot make the track 401 Move backward, so in order to balance the extension power of the telescopic hydraulic cylinder 404, the train body 101 starts to move forward, that is: the direction is provided by the guiding function of the track guide assembly and the track 401; under the premise that the contraction effect of the propulsion cylinder 301 and the extension effect of the telescopic hydraulic cylinder 404 provide a power basis, each train body 101 is moved forward by the rolling of the rolling assembly 406 on the track 401, and the second part of the self-movement process of the train body 101 is completed at this time. This part is configured as the equipment train movement process in this embodiment, and finally the purpose of the equipment train moving forward is achieved.

[0068] In addition, in the present technical solution, the top anchoring device 2 also takes into account the overall turning action of the equipment train, and is specifically achieved by the cooperation of the fourth hinge 302 and the fifth hinge 303. Specifically, Fig.10 As shown, the fourth hinge 302 is a one-way hinge that rotates only in the vertical direction, and the fifth hinge 303 is a two-way hinge that rotates in the vertical and horizontal directions. In the second part of the self-movement process of the train body 101, when a group of propulsion cylinders 301 begin to extend and push the top anchor device 2 forward, it is only necessary to make the extension amount of a group of propulsion cylinders 301 different to make the top anchor device 2 rotate to the side where the propulsion cylinder 301 extends less, and the cooperation of the fourth hinge 302 and the fifth hinge 303 The thrust cylinder 301 does not interfere with the top base 201 and the train body 101; in addition, a first rotating shaft 308 is provided at the bottom of the fourth hinge 302, and the first rotating shaft 308 vertically passes through the fixed surface 202, and is rotatably arranged inside the top base 201, so as to improve the strength of the fourth hinge 302 and prevent it from being broken due to excessive tensile force. An operating hole is also opened at a position corresponding to the fourth hinge 302 on the side wall of the top base 201, which is used for welding, fixing and maintenance of the first rotating shaft 308.

[0069] In this technical solution, if Figure 8-9As shown, the track connection assembly 307 includes a connection portion 309 arranged at the end of a group of tracks 401, and a connection seat 310, a sixth hinge 311 is provided on one side of the connection seat 310, and the sixth hinge 311 is rotatably connected to the connection portion 309 through a second rotating shaft 312 in a vertical direction; the other side of the connection seat 310 is connected to the two guide columns 305 in the track guide assembly through the first hinge 402.

[0070] Based on the above embodiment, one side of the connecting seat 310 is rotatably connected to the connecting part 309 through the second rotating shaft 312, and the other side is connected to the guide column 305 through the first hinge 402, thereby realizing the universal movement ability of the track connecting component 307 at the end of the track 401. When the top anchoring device 2 turns by the thrust cylinder 301, the track guide assembly will follow the top base 201 to move, and at this time, the track connecting component 307 realizes the ability of the track 401 to turn.

[0071] Specifically, the utility model provides a complete self-moving equipment train in a coal mine. The equipment train uses a self-moving mechanism 4 to complete the overall operation of the train. A top anchoring device 2 is also provided. On the one hand, it plays a guiding role for the front of the train. On the other hand, the top anchoring device 2 is used to provide an anchoring effect for the equipment train, so that the equipment train can move forward effectively and avoid the phenomenon of the train slipping on slopes. On this basis, the utility model also redesigns the train body 101, which is lighter than the existing train body, providing a strong condition for the self-movement of the equipment train.

[0072] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-moving equipment train for underground coal mines, characterized in that: include: The mining mobile train group is composed of a plurality of train units connected end to end, wherein each of the train units comprises a train body, a group of supporting feet are arranged in parallel on both sides of the bottom of the train body through a plurality of supporting plates, and a self-moving mechanism is arranged between the supporting feet, and the self-moving mechanism comprises: A set of rails is arranged in parallel between the supporting legs, and in the mining mobile train set, the corresponding rails between two adjacent train units are connected by a first hinge, and on this basis, a set of rails is further provided between a plurality of connecting beams; A group of telescopic hydraulic cylinders are arranged in parallel, corresponding to a group of the tracks, and the telescopic hydraulic cylinders are rotatably arranged between the tracks and the train body, on this basis, when a group of the telescopic hydraulic cylinders is in a retracted state, the bottom of the track and the bottom of the supporting foot are in the same horizontal plane; A group of parallel lifting hydraulic cylinders are symmetrically arranged at the front side of the train body in the forward moving direction and are fixedly connected to the train body. The piston end of each lifting hydraulic cylinder is connected to a rolling assembly, and each group of rolling assemblies is matched with the track. In addition, the self-propelled equipment train further comprises: a top anchoring device connected to the front side of the train body in the forward moving direction through a propulsion device, wherein the top anchoring device at least comprises: A top base, the top base comprising a fixing surface and a contact surface which are arranged parallel to each other in the upper and lower parts, the contact surface of the top base being in contact with the ground and a side surface connecting the fixing surface and the contact surface being an inclined surface, the inclined surface having a notch portion, the notch portion being connected to a sliding groove provided on the contact surface, and a fixed limiting portion being installed in the sliding groove; A lifting assembly, comprising a lifting arm hinged on the fixed surface, the lifting arm as a whole is a hollow cuboid, a lifting arm is slidably sleeved inside the lifting arm, and the lifting arm always extends out of the top of the lifting arm, the top of the lifting arm is hinged with a top plate, and a plurality of convex nails are provided on the upper surface of the top plate; In addition, a group of second hinges and a group of third hinges are symmetrically arranged on the left and right sides of the lifting arm, and a group of second hinges are located above a group of third hinges. On this basis, the lifting assembly also includes a group of symmetrically arranged lifting cylinders, a group of cylinder bodies of the lifting cylinders are connected to the second hinges or the third hinges, and a group of piston ends of the lifting cylinders are hinged to the top sides of the lifting arm; The lifting assembly also includes a supporting oil cylinder disposed between the top base and the lifting arm, the cylinder body of the supporting oil cylinder is hinged on the fixed surface, and the piston end of the supporting oil cylinder is hinged on the outer wall of the lifting arm, which is used for the rear side flipping of the lifting arm along the forward moving direction of the train body; Based on the above structure, the propulsion device includes: A group of propulsion cylinders are arranged in parallel, the cylinder bodies of one group of the propulsion cylinders are arranged on the fixed surface of the top base through a fourth hinge, and the piston rods of one group of the propulsion cylinders are arranged on the front side of the forward moving direction of the train body through a fifth hinge, wherein the fourth hinge is a one-way hinge that rotates only in the vertical direction, and the fifth hinge is a two-way hinge that rotates in the vertical and horizontal directions. In addition, a first rotating shaft is also arranged at the bottom of the fourth hinge, and the first rotating shaft vertically penetrates the fixed surface and is rotatably arranged inside the top base; A track guide assembly, comprising a guide head, the shape of the guide head matches the notch portion, and in addition, the track guide assembly also comprises two guide posts arranged in parallel, one end of each guide post is connected to the guide head, and the other end is connected through a limit block, and the distance between the two guide posts is the width of the limit portion, thereby, the two guide posts, the limit block and the guide head jointly form a limit cavity that limits the limit portion to move only along the extension direction of the guide posts, and the maximum movement range of the limit portion allowed by the limit cavity is the same as the maximum movement range of the propulsion cylinder and the telescopic hydraulic cylinder; On this basis, the track guide assembly is connected to the track through a track connection assembly to provide direction limitation for the self-movement of the track.

2. The self-propelled equipment train for coal mines according to claim 1, characterized in that: In the mining mobile train group, a cable rack is also provided on the train body of each train unit, and the cable rack includes a plurality of columns symmetrically arranged on both sides of the train body, wherein the top ends of the plurality of columns located on the same side of the train body are commonly connected to a long strip-shaped mounting plate, and a plurality of mounting beams are arranged between the two mounting plates.

3. The self-propelled equipment train for coal mines according to claim 2, characterized in that: In each train unit, two rolling rods are arranged between the two mounting plates, and the two rolling rods are respectively located at two ends of the mounting plates.

4. The self-propelled equipment train for coal mines according to claim 3, characterized in that: In each of the train units, a plurality of support beams are provided at the bottom of the train body, and the support beams are crisscrossed to form a grid structure.

5. The self-propelled equipment train for coal mines according to claim 4, characterized in that: In the self-moving mechanism of each train unit, a group of telescopic hydraulic cylinders have cylinder bodies rotatably connected to the support beam, and piston ends rotatably connected to the connecting beam between the rails.

6. The self-propelled equipment train for coal mines according to claim 1, characterized in that: In the self-moving mechanism, the rolling assembly includes a roller bracket rotatably connected to the piston end of the lifting hydraulic cylinder, and the roller bracket is surrounded by four baffles. In addition, a group of rollers that cooperate with the upper end surface of the track are provided inside the roller bracket, and the group of rollers are arranged in a front-to-back order along the forward moving direction of the train body.

7. The self-propelled equipment train for coal mines according to claim 1, characterized in that: In the top anchoring device, the lifting assembly also includes a first positioning hole opened on the lifting arm, and a second positioning hole opened on the lifting arm, wherein the number and size of the first positioning hole and the second positioning hole are the same, when the cylinder body of a group of the lifting cylinders is connected to the second hinge and the stroke of the group of lifting cylinders is the largest, the positions of the first positioning hole and the second positioning hole correspond to each other, and at this time, the first positioning hole and the second positioning hole are jointly provided with a positioning pin.

8. The self-propelled equipment train for coal mines according to claim 1, characterized in that: In the roof anchoring device, an operating hole is further provided on the side wall of the roof base at a position corresponding to the fourth hinged member.

9. The self-propelled equipment train for coal mines according to claim 1, characterized in that: The track connection assembly includes a connection portion provided at a group of the track ends, and a connection seat, a sixth hinge is provided on one side of the connection seat, and the sixth hinge is rotatably connected to the connection portion via a second rotating shaft in a vertical direction; the other side of the connection seat is connected to two guide columns in the track guide assembly via a first hinge.

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