Belt conveyor for coal mine transportation

Abstract

The utility model discloses a belt conveyor for coal mine transportation, and relates to the technical field of coal mine transportation equipment, the belt conveyor comprises a rack, a discharging assembly and a deviation adjusting assembly, the rack is provided with a belt set, the belt set comprises a fixed roller and a belt, the two ends of the fixed roller and the two ends of the belt are rotationally connected; the bearing end and the return stroke end of the belt set are respectively provided with a deviation adjusting assembly, every two deviation adjusting assemblies are oppositely arranged, and one end of the machine frame is fixedly connected with a mounting frame. Due to the fact that swinging force is generated after the floating roller is pressed, the stress direction of the belt on the side is changed, a component force pointing to the center of the belt is generated, the belt is promoted to return automatically, compared with a traditional single deviation adjusting roller or a simple mechanical deviation adjusting device, the problem of belt deviation can be solved more sensitively and accurately, the belt deviation frequency is effectively reduced, and the production efficiency is improved. The belt wear rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine transportation equipment technical field, concretely is a belt conveyor for coal mine transportation. BACKGROUND

[0002] In coal mining operation, the belt conveyor is the key transportation equipment, which is used for conveying the mined coal from the underground working face to the ground or other designated place.

[0003] The conventional belt conveyor for coal mine transportation has many deficiencies, for example, the belt is prone to deviation under long-time heavy load operation, which not only reduces the transportation efficiency, but also accelerates the belt wear and shortens the service life; moreover, the existing belt conveyor unloading link is not flexible and efficient enough, which often leads to coal accumulation, cleaning difficulty and influence on the continuity of subsequent transportation process. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a belt conveyor for coal mine transportation, which solves the problems of the belt prone to deviation under long-time heavy load operation, and the existing belt conveyor unloading link not flexible and efficient enough, which often leads to coal accumulation, cleaning difficulty and influence on the continuity of subsequent transportation process.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a belt conveyor for coal mine transportation, comprising a rack, a discharging assembly and a deviation adjusting assembly, the rack is provided with a belt set, the belt set comprises fixed rollers rotatably connected at both ends and a belt, the load bearing end and the return end of the belt set are provided with the deviation adjusting assembly arranged opposite to each other in pairs, one end of the rack is fixedly connected with a mounting frame, the mounting frame is fixedly connected with a driving motor through bolts, the output end of the driving motor is provided with a driving box connected to a group of fixed rollers of the belt set, the bottom of the other end of the rack is fixedly installed with a supporting seat, the discharging assembly is rotatably installed on the outer wall of the supporting seat, the discharging assembly comprises a discharging hopper rotatably connected, the discharging hopper is funnel-shaped, the two sides of the discharging hopper are connected to the bearing seat on the supporting seat through a pair of concentric shafts, the concentric shafts and the bearing seat are in interference fit, the outer side of the discharging hopper is fixedly installed with a pin hole disc, the pin hole disc is provided with a positioning pin, the supporting seat is provided with an arc-shaped groove away from the bearing seat, the arc-shaped groove is provided with a plurality of positioning pin holes in the inside;

[0006] Each group of the deviation adjusting assembly comprises a group of floating rollers, the two ends of the floating rollers are rotatably installed on the mounting plate, the end of the mounting plate is elastically connected with an elastic joint, the bottom of the elastic joint is fixedly connected with a spherical hinge body, the spherical hinge body is rotatably installed in the spherical hinge seat at the bottom, the spherical hinge seat is fixedly connected with an ear seat through bolts, and the ear seat is welded and fixed on the rack.

[0007] Preferably, the bottom of the discharge hopper is connected with an adjusting baffle through a hinge, the adjusting baffle extends to the discharge opening of the discharge hopper, a screw rod is arranged in the extending part of the adjusting baffle, the top of the screw rod is provided with a hand wheel, the hand wheel and the screw rod are connected through a key, and the bottom of the screw rod is fixedly connected with a limiting disc.

[0008] Preferably, the number of the positioning pin holes is not less than five, and the included angles of adjacent positioning pin holes are equal, and the diameter of the positioning pin is matched with the positioning pin hole.

[0009] Preferably, the two ends of the floating roller are respectively fixedly provided with a set of limiting blocks, the limiting blocks are vertically fixed between the ear seats, and the middle part of the elastic joint is elastically connected with a set of buffer struts to the limiting blocks.

[0010] Preferably, a gap is arranged between the floating roller and the belt of the belt group.

[0011] Preferably, a plurality of auxiliary rollers are rotatably connected to the bottom of the belt group, and the bottom of the plurality of auxiliary rollers is fixedly connected between the rack.

[0012] Compared with the prior art, the coal mine conveying belt machine has the following beneficial effects:

[0013] 1. The coal mine conveying belt machine, when the belt deviates, the deviated side of the belt presses the floating roller, drives the elastic joint to swing, changes the stress direction of the belt on the side, generates a component force pointing to the center of the belt, and promotes the belt to automatically return to the normal position.

[0014] 2. The coal mine conveying belt machine, the discharge assembly is arranged at the discharge end of the belt machine, the operator can easily rotate the discharge hopper to the appropriate angle according to the position of the external discharge area, fix through the positioning pin, ensure accurate coal discharge, avoid material scattering and accumulation, the adjusting baffle can accurately control the discharge flow, adapt to different transportation rhythm requirements, improve the discharge efficiency, and reduce the cleaning workload of the discharge site. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a sectional structure schematic view of the discharge assembly of the utility model;

[0017] Figure 3 It is a top view structure schematic view of the utility model;

[0018] Figure 4 For the utility model Figure 3 A place of the adjusting deviation assembly amplification structure schematic view

[0019] Figure 5 For the utility model adjusting deviation assembly structure schematic view.

[0020] In the drawing: 1, frame;11, mounting frame;12, drive motor;13, drive box;14, bearing seat;2, unloading assembly;21, unloading hopper;22, hand wheel;23, pin hole disc;24, adjusting baffle;25, limiting disc;26, positioning pin;27, arc slot;28, positioning pin hole;3, adjusting deviation assembly;30, auxiliary roller;31, ear seat;32, ball hinge seat;33, floating roller;34, limiting block;35, elastic joint;36, buffer support;37, ball hinge body;38, mounting plate;4, support seat;5, belt group. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5The utility model provides a coal mine transportation is belt conveyor technical scheme: a coal mine transportation is belt conveyor, including frame 1, unloading subassembly 2 and bias adjusting subassembly 3, is equipped with belt group 5 on frame 1, and belt group 5 includes the fixed roller of two end rotation connection and belt, and the load end and the return end of belt group 5 are provided with bias adjusting subassembly 3 that is provided with two two opposite settings, and one end of frame 1 is fixedly connected with mounting bracket 11, and mounting bracket 11 is fixedly connected with drive motor 12 through bolt on, and the output of drive motor 12 is equipped with drive box 13 and is connected to a group of fixed rollers on belt group 5, and the bottom of the other end of frame 1 is fixedly installed with support seat 4, and unloading subassembly 2 is rotatably installed on the outer wall of support seat 4, and unloading subassembly 2 includes the unloading hopper 21 of rotation connection, and the unloading hopper 21 is funnel-shaped, and the both sides of unloading hopper 21 are connected on bearing seat 14 on support seat 4 through a pair of concentric shafts, and the concentric shaft and bearing seat 14 are interference fit, and the outside of unloading hopper 21 is fixedly installed with pin hole disc 23, and pin hole disc 23 is equipped with positioning pin 26, and the side of support seat 4 away from bearing seat 14 is provided with arc slot 27, and the inside of arc slot 27 is equipped with multiple positioning pin holes 28; through external power supply makes drive motor 12 work, to drive the belt pulley in drive box 13 drive fixed roller rotates, to make belt reciprocating motion, through the concentric shaft connects unloading hopper 21 on bearing seat 14 on support seat 4, according to the operation demand, rotates unloading hopper 21 to the angle of suitable, make positioning pin 26 pass through pin hole disc 23 and insert in positioning pin hole 28 angle fixation, to adapt to the demand of different transport rhythm, arc slot 27 can satisfy the direction and amplitude of unloading hopper 21 rotation;

[0023] Each bias adjusting subassembly 3 includes a group of floating rollers 33, both ends of the floating roller 33 are rotatably installed on the mounting plate 38 through the shaft, the end of the mounting plate 38 is elastically connected with the elastic joint 35, the bottom of the elastic joint 35 is fixedly connected with the spherical hinge body 37, the spherical hinge body 37 is rotatably installed in the spherical hinge seat 32 at the bottom, the spherical hinge seat 32 is fixedly connected with the lug seat 31 through the bolt, and the lug seat 31 is welded and fixed on the frame 1; the elastic joint 35 is made of rubber material, which can provide certain vertical elastic buffer and allow the floating roller 33 to swing freely within a certain range, cooperate with the spherical hinge body 37 to move in multiple directions in the spherical hinge seat 32, prevent damage caused by hard collision of the belt, and reduce the wear rate of the belt, the belt and the bias adjusting subassembly 3.

[0024] Further, the bottom of the unloading hopper 21 is connected with the adjusting baffle 24 through the hinge, the adjusting baffle 24 extends to the outside of the discharge port of the unloading hopper 21, a threaded hole is arranged in the extension part of the adjusting baffle 24, a lead screw is arranged in the threaded hole, a hand wheel 22 is arranged at the top of the lead screw, the hand wheel 22 and the lead screw are connected through a key, and a limiting disc 25 is fixedly connected to the bottom of the lead screw; rotating the hand wheel 22 in the forward and reverse directions to drive the lead screw to drive the adjusting baffle 24 to open and close at an angle, which is convenient for the operator to manually adjust the opening degree of the adjusting baffle 24 and control the unloading flow.

[0025] Further, the number of positioning pin holes 28 is not less than five, and the included angle of adjacent positioning pin holes 28 is equal, and the diameter of the positioning pin 26 is matched with the positioning pin hole 28; the discharge hopper 21 can be fixed at different rotation angles to realize multi-angle discharging.

[0026] Further, a set of limiting blocks 34 are fixedly installed outside both ends of the floating roller 33, the limiting blocks 34 are vertically fixed between the lug seats 31, and a set of buffer struts 36 are elastically connected to the limiting blocks 34 at both ends of the middle part of the elastic joint 35; the buffer struts 36 cooperating with the elastic joint 35 can reduce the transverse pressure received by the floating roller 33, thereby effectively returning the pressure to the belt.

[0027] Further, a certain gap is provided between the floating roller 33 and the belt of the belt set 5, which facilitates reserving space for normal swinging of the floating roller 33 and ensures that it can flexibly respond to the belt deviation.

[0028] Further, a plurality of auxiliary rollers 30 are rotatably connected to the bottom of the belt set 5, and the bottom of the plurality of auxiliary rollers 30 is fixedly connected between the rack 1; the plurality of auxiliary rollers 30 can assist the belt set 5 to stably run in reciprocating motion, and to a certain extent, can enable the belt to normally operate.

[0029] When working (or in use), the driving motor 12 is made to work by connecting an external power source, thereby driving the belt pulley in the driving box 13 to drive the fixed roller to rotate, so that the belt reciprocates. When the coal is transported to the end of the belt conveyor, the operator adjusts the discharge hopper 21 to the most appropriate discharging angle by rotating the concentric shafts on both sides of the discharge hopper 21 and the bearing seat 14 in interference fit connection, and then uses a plurality of positioning pin holes 28 to cooperate with the positioning pins 26 on the pin hole disc 23 to accurately fix the discharge hopper 21 in the selected positioning pin hole 28 in the arc-shaped groove 27, and to ensure that the coal can be accurately discharged, thereby effectively avoiding the scattering and accumulation of coal materials. In terms of discharge flow control, the operator manually rotates the hand wheel 22 at one end of the lead screw, and since the extension of the adjusting baffle 24 is provided with a threaded hole through which the lead screw passes, and the hand wheel 22 and the lead screw are connected by a key, the torque transmission is stable. When the hand wheel 22 is rotated in the forward and reverse directions, the lead screw drives the adjusting baffle 24 to move, thereby accurately controlling the discharge flow to adapt to different transportation rhythm requirements. When the coal is unevenly transferred and the belt deviates, the floating roller 33 on the deviated side is pressed, which drives the elastic joint 35 and the buffer strut 36 to swing. Since the floating roller 33 generates a swinging force after being pressed, the stress direction of the belt on that side is changed, a component force is generated which points to the center of the belt, and the belt is automatically corrected. Compared with the traditional single deviation adjusting roller or simple mechanical deviation adjusting device, the belt deviation problem can be more sensitively and accurately solved, the belt deviation frequency is effectively reduced, and the belt set 5 wear rate is reduced.

[0030] Meanwhile, the contents not described in detail in the present specification are all the prior art known to those skilled in the art.

[0031] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, such that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of further limitations, the statement "comprises a limited element" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the stated element.

[0032] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor for coal mine transportation, comprising a frame (1), a discharging assembly (2) and a deviation adjusting assembly (3), characterized in that: The rack (1) is provided with a belt set (5), the belt set (5) includes two ends of the fixed roller and the belt, the load end and the return end of the belt set (5) are provided with two-to-two opposite setting offset assembly (3), one end of the rack (1) is fixedly connected with the mounting frame (11), the mounting frame (11) is fixedly connected with the driving motor (12) through the bolt, the output end of the driving motor (12) is provided with the driving box (13) connected to a group of fixed rollers on the belt set (5), the bottom of the other end of the rack (1) is fixedly installed with the support seat (4), the discharge assembly (2) is rotatably installed on the outer wall of the support seat (4), the discharge assembly (2) includes a rotatably connected discharge hopper (21), the discharge hopper (21) is funnel-shaped, the two sides of the discharge hopper (21) are connected on the bearing seat (14) on the support seat (4) through a pair of concentric shafts, the concentric shafts and the bearing seat (14) are interference fit, the outside of the discharge hopper (21) is fixedly installed with the pin hole disc (23), the pin hole disc (23) is provided with the positioning pin (26), the support seat (4) is provided with the arc-shaped groove (27) away from the bearing seat (14), the inside of the arc-shaped groove (27) is provided with a plurality of positioning pin holes (28); Each group of the offset assembly (3) includes a group of floating rollers (33), both ends of the floating roller (33) are rotatably installed on the mounting plate (38), the end of the mounting plate (38) is elastically connected with the elastic joint (35), the bottom of the elastic joint (35) is fixedly connected with the spherical hinge body (37), the spherical hinge body (37) is rotatably installed in the spherical hinge seat (32) at the bottom, the spherical hinge seat (32) is fixedly connected with the lug seat (31) through the bolt, and the lug seat (31) is welded and fixed on the rack (1).

2. The belt conveyor for coal mine transportation according to claim 1, characterized in that: The bottom of the discharge hopper (21) is connected with the adjusting baffle (24) through the hinge, the adjusting baffle (24) extends to the discharge port of the discharge hopper (21), and a screw rod is arranged in the threaded hole of the extending part, the top of the screw rod is provided with a hand wheel (22), the hand wheel (22) and the screw rod are connected through a key, and the bottom of the screw rod is fixedly connected with a limiting disc (25).

3. The belt conveyor for coal mine transportation according to claim 1, characterized in that: The number of the positioning pin holes (28) is not less than five, and the included angles of adjacent positioning pin holes (28) are equal, and the diameter of the positioning pin (26) is matched with the positioning pin hole (28).

4. The belt conveyor for coal mine transportation according to claim 1, characterized in that: The two ends of the floating roller (33) are respectively fixedly installed with a group of limiting stoppers (34), the limiting stoppers (34) are vertically fixed between the lug seat (31), and a group of buffer struts (36) are elastically connected to the limiting stoppers (34) at both ends of the middle of the elastic joint (35).

5. The belt conveyor for coal mine transportation according to claim 1, characterized in that: A certain gap is arranged between the floating roller (33) and the belt of the belt set (5).

6. The belt conveyor for coal mine transportation according to claim 1, characterized in that: The bottom of the belt set (5) is rotatably connected with a plurality of auxiliary rollers (30), and the bottom of the plurality of auxiliary rollers (30) is fixedly connected with the rack (1).

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