A highly adaptable and flexible belt transfer machine for coal mines

Abstract

The present invention relates to the field of transfer machines, and discloses a highly adaptable and bendable belt transfer machine for coal mines, comprising a receiving part, a plurality of flexible transport units, a transition unit and a discharge part, wherein the receiving part is hinged to the tail of a tunneling machine through a pin shaft, and the flexible transport unit comprises a curved frame, and a walking mechanism and a lifting mechanism are respectively fixed to the left and right sides of the curved frame by bolts, and a plurality of first groove rollers and a plurality of second flat rollers are respectively arranged inside the curved frame, and the lifting mechanism comprises an upper lifting group and a lower lifting group, and the lower lifting group is inserted inside the upper lifting group, and a sliding shoe plate is fixed to the bottom surface of the lower lifting group, and a fourth connecting ear is fixed to the top surface of the sliding shoe plate, and a lifting oil cylinder is hinged inside the fourth connecting ear, and a third connecting ear is fixed to the inner top surface of the upper lifting group. In the present invention, by adopting the lifting mechanism and the walking mechanism, arbitrary conversion can be performed according to the bottom plate conditions, so that the belt transfer machine for coal mines can move forward better.

Description

Technical Field

[0001] The invention relates to the technical field of transfer machines, in particular to a highly adaptable and bendable belt transfer machine for coal mines. Background Art

[0002] At present, the mining of coal resources in my country has gradually shifted from shallow to deep. Due to factors such as underground surrounding rock stress and water seepage in the tunnel, phenomena such as uneven bottom bulge, undulating tunnels and even mud have occurred. In addition, the traditional belt transfer machine cannot adapt to the requirements of material transfer at the excavation face due to frequent forward and backward operations, which brings many inconveniences to the material transfer at the excavation working face.

[0003] According to the Chinese patent with publication number CN210762694U, a belt transfer machine for coal mines belongs to the technical field of transfer machines. The key points of its technical solution are that it includes a main frame, a driven roller and an electric roller. The main frame includes a front frame, an intermediate frame and a tail frame. Conveyor belts are sleeved on the driven roller and the electric roller. The front frame, the intermediate frame and the tail frame are hinged to each other in sequence. A pair of eccentric wheels are respectively arranged on both sides of the front frame, and each pair of eccentric wheels is distributed along the height direction of the tail frame. The end of the driven roller is placed between the pair of eccentric wheels and is fitted with a pair of eccentric wheels on the same side. A limiting assembly is arranged between each pair of eccentric wheels and the front frame. The driven roller is arranged at the end of the front frame away from the intermediate frame, and the electric roller is arranged at the end of the tail frame away from the intermediate frame. An explosion-proof motor is connected to one end of the electric roller.

[0004] In the above scheme, rollers are used to support the transfer machine and it is in contact with the tunnel, which leads to the following disadvantages: it cannot adapt to the bottom plate conditions such as uneven bottom drum and undulating tunnel, which brings many inconveniences to the material transfer of the excavation working face. Summary of the invention

[0005] The purpose of the present invention is to provide a highly adaptable and flexible belt transfer machine for coal mines to solve the problem that the machine cannot adapt to the bottom plate conditions such as uneven bottom drum and undulating tunnels, which brings many inconveniences to the material transfer of the excavation working face.

[0006] In order to achieve the above-mentioned invention objectives, the present invention adopts the following technical solutions: a highly adaptable and flexible belt transfer machine for coal mines, comprising a receiving part, a plurality of flexible transport units, a transition unit and a discharge part, wherein the receiving part is hinged to the tail of the tunnel boring machine through a pin shaft, and the discharge part is located on the top surface of the tail of the self-moving machine, and high-strength nuts are used to connect the plurality of flexible transport units, the flexible transport unit and the receiving part, and the flexible transport unit and the transition unit, the transition unit and the discharge part are hinged through a pin shaft, the transition unit comprises a transition frame, the receiving part comprises a receiving frame, the flexible transport unit comprises a curved frame, and the front end of the curved frame is A second connecting ear is fixed at the center position, and a walking mechanism and a lifting mechanism are fixed to the left and right sides of the bending frame by bolts respectively, and an upper belt pressure pulley and a lower belt pressure pulley are fixed to the interior and bottom surface of the bending frame by U-shaped clips respectively, and a plurality of first groove rollers and a plurality of second flat rollers are respectively arranged inside the bending frame, and the lifting mechanism comprises an upper lifting mechanism, a lower lifting mechanism and a sliding shoe bottom plate, and the lifting cylinder on the lower lifting mechanism is welded to the lower lifting mechanism frame, one end of the lifting cylinder is fixed to the connecting ear of the upper lifting mechanism by a pin shaft, and the other end is fixed to the connecting ear of the sliding shoe bottom plate by a pin shaft, and there is a certain gap between the sliding shoe bottom plate and the lower lifting mechanism.

[0007] Preferably, first latch structures are fixed to the front end of the curved frame near the left and right sides, and second latch structures are fixed to the front end of the transition frame near the left and right sides, respectively.

[0008] Preferably, a power station is provided on the top surface of the tail of the self-moving machine, and the unloading part is connected to the power station through a connecting rod and a pin shaft.

[0009] Preferably, the lifting mechanisms in several of the flexible transport units are independently controlled.

[0010] Preferably, a front connecting ear is fixed at the center of the front end of the transition frame, and rear connecting ears are fixed to the rear end of the transition frame near the left and right sides respectively. A plurality of third flat rollers and a plurality of second grooved rollers are respectively arranged inside the transition frame, and a plurality of positioning pressure wheels, a plurality of upper pressure pulleys and a plurality of lower pressure pulleys are respectively fixed to the top surface of the transition frame through U-shaped clips.

[0011] Preferably, anti-runaway pressure belts are fixed respectively on the top surface of the receiving frame near the left and right sides through U-shaped clips.

[0012] Preferably, a first connecting ear is fixed at the front end center of the material receiving frame, a driving roller is fixed inside the material receiving frame by bolts, a plurality of buffer rollers and a plurality of first flat rollers are respectively arranged inside the material receiving frame, and a rubber is fixed to the top surface of the material receiving frame near the left and right sides by bolts.

[0013] Preferably, the rubber is installed at an angle of forty-five degrees to the top surface of the receiving frame.

[0014] Compared with the prior art, the highly adaptable and bendable belt transfer machine for coal mines using the above technical solution has the following beneficial effects:

[0015] 1. The flexible transport unit is equipped with a wheeled walking device and a lifting mechanism. The lifting mechanism has a built-in lifting cylinder, which can realize the switching of the belt conveyor's walking mode. It can be switched arbitrarily according to the bottom plate conditions, so that the coal mine belt conveyor can move forward better;

[0016] There is a certain gap between the sliding shoe bottom plate on the lifting mechanism and the lower lifting mechanism, and the sliding shoe bottom plate can rotate around the bottom end of the lifting cylinder to adapt to the harsh conditions of uneven tunnel bottom plate.

[0017] 2. The lifting cylinder of the lifting mechanism can be controlled in groups according to the needs of on-site use, and the lifting situation of the lifting mechanism can be handled in sections according to the road conditions of each section.

[0018] 3. The latch structure on the flexible transport unit has a certain limiting function, which reduces the swing angle of the flexible transport unit and prevents the conveyor belt from streamering or lateral tearing.

[0019] 4. The backward movement of the tunnel boring machine and the power station achieve speed matching, realizing the overall backward movement of the belt transfer machine for coal mines and solving the problem of retreating the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall supporting diagram of the embodiment.

[0021] Figure 2 It is a schematic structural diagram of the receiving part of the embodiment.

[0022] Figure 3 Schematic diagram of the flexible transport unit structure of an embodiment.

[0023] Figure 4 Schematic diagram of the lifting mechanism of the embodiment.

[0024] Figure 5 Schematic diagram of the transition unit structure of the embodiment.

[0025] In the figure: 1, boring machine; 2, receiving part; 21, first connecting ear; 22, receiving frame; 23, driving roller; 24, anti-runaway pressure belt; 25, buffer roller; 26, rubber; 27, first flat roller; 3, flexible transport unit; 31, bending frame; 311, second connecting ear; 312, first latch structure; 32, lifting mechanism; 321, upper lifting group; 3211, third connecting ear; 322, lower lifting group; 3221, fourth connecting ear; 3222, Slipper plate; 323, lifting cylinder; 33, upper belt pressure wheel; 34, first groove roller; 35, lower belt pressure wheel; 36, walking mechanism; 37, second flat roller; 4, transition unit; 41, transition frame; 411, front connecting ear; 412, second latch structure; 413, rear connecting ear; 42, third flat roller; 43, second groove roller; 44, positioning pressure wheel; 45, upper pressure pulley; 46, lower pressure pulley; 5, unloading section; 6, power station; 7, self-moving tail. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-Figure 5 As shown, a highly adaptable and flexible belt transfer machine for coal mines includes a receiving part 2, a plurality of flexible transport units 3, a transition unit 4 and a discharge part 5. The receiving part 2 is hinged to the tail of the tunneling machine 1 through a pin shaft, and the discharge part 5 is located on the top surface of the self-moving machine tail 7. High-strength nuts are used to connect the plurality of flexible transport units 3, the flexible transport unit 3 and the receiving part 2, and the flexible transport unit 3 and the transition unit 4. The transition unit 4 and the discharge part 5 are hinged through a pin shaft. The transition unit 4 includes a transition frame 41, the receiving part 2 includes a receiving frame 22, and the flexible transport unit 3 includes a curved frame 31. A second connecting ear 311 is fixed at the front center of the curved frame 31. The left and right sides of the curved frame 31 are respectively connected by The walking mechanism 36 and the lifting mechanism 32 are fixed by bolts, the upper belt pressure pulley 33 and the lower belt pressure pulley 35 are fixed to the interior and the bottom surface of the bending frame 31 by U-shaped clips respectively, a plurality of first groove rollers 34 and a plurality of second flat rollers 37 are respectively arranged inside the bending frame 31, the lifting mechanism 32 includes an upper lifting mechanism 321, a lower lifting mechanism 322 and a sliding shoe bottom plate 323, the lifting cylinder 3221 on the lower lifting mechanism is welded to the lower lifting mechanism frame 3222, one end of the lifting cylinder 3221 is fixed to the connecting ear of the upper lifting mechanism 321 by a pin shaft, and the other end is fixed to the connecting ear of the sliding shoe bottom plate 323 by a pin shaft, and there is a certain gap between the sliding shoe bottom plate 323 and the lower lifting mechanism 32.

[0028] In use, the belt conveyor for coal mines realizes the overall advancement of the equipment under the traction of the tunnel boring machine 1. When the bottom plate condition is seriously muddy, the belt conveyor for coal mines leaves the self-moving machine tail 7. At this time, the walking mechanism 36 on the flexible transport unit 3 is easy to sink into the mud, increasing the forward resistance, making the overall advancement of the equipment slow or even causing the connection to break, increasing the operation risk of the equipment. At this time, the lifting cylinder 323 on the lifting mechanism 32 is operated to make the sliding shoe plate 3222 of the lower lifting group 322 contact with the bottom plate of the tunnel, increase the contact area with the bottom plate of the tunnel, reduce the sinking area of ​​the equipment, and change the rolling friction to sliding friction, so as to better achieve better advancement. When the bottom plate hardness is strong, the lifting cylinder 323 on the lifting mechanism 32 is operated to make the walking wheel of the walking mechanism 36 completely contact with the bottom plate of the tunnel. The lifting mechanism 32 and the walking mechanism 36 can be arbitrarily converted according to the bottom plate conditions, so that the belt conveyor for coal mines can move forward better.

[0029] like Figure 2-Figure 5 As shown, the first latch structure 312 is fixed to the front end of the curved frame 31 near the left and right sides respectively, the second latch structure 412 is fixed to the front end of the transition frame 41 near the left and right sides respectively, the top surface of the self-moving machine tail 7 is provided with a power station 6, the unloading part 5 is connected to the power station 6 by a connecting rod and a pin shaft, and the lifting mechanisms 32 in the several flexible transport units 3 are independently controlled.

[0030] During use, by setting the first latch structure 312 and the second latch structure 412, the swing angle of the flexible transport unit 3 and the transition unit 4 can be effectively reduced to prevent the conveyor belt from streamering or lateral tearing. The speed is matched by the retreat of the tunnel boring machine 1 and the power station 6, and the overall retreat of the belt transfer machine for coal mines is realized, solving the problem of retreating the entire machine. The lifting mechanisms 32 of several flexible transport units 3 are independently controlled in groups, and the lifting situation of the lifting mechanism 32 can be handled in sections according to the road conditions of each section.

[0031] like Figure 2-Figure 5As shown, a front connecting ear 411 is fixed at the center of the front end of the transition frame 41, and a rear connecting ear 413 is fixed to the rear end of the transition frame 41 near the left and right sides respectively, and a plurality of third flat rollers 42 and a plurality of second grooved rollers 43 are respectively arranged inside the transition frame 41, and a plurality of positioning pressure wheels 44, a plurality of upper pressure pulleys 45 and a plurality of lower pressure pulleys 46 are respectively fixed to the top surface of the transition frame 41 through U-shaped clamps, and an anti-runaway pressure belt 24 is respectively fixed to the top surface of the receiving frame 22 near the left and right sides through U-shaped clamps, a first connecting ear 21 is fixed at the center of the front end of the receiving frame 22, a driving roller 23 is fixed to the inside of the receiving frame 22 by bolts, a plurality of buffer rollers 25 and a plurality of first flat rollers 27 are respectively arranged inside the receiving frame 22, and a rubber 26 is respectively fixed to the top surface of the receiving frame 22 near the left and right sides by bolts, and the rubber 26 is installed at a forty-five degree angle to the top surface of the receiving frame 22.

[0032] During use, the transition unit 4 can be used to slowly transition the coal transported by the flexible transport unit 3 to assist the unloading operation at the unloading part 5. By providing an anti-deviation pressure belt 24 on the top surface of the receiving frame 22, the coal can be prevented from deviating during transportation. The coal enters the interior of the receiving frame 22 and is transported to the flexible transport unit 3 through the driving roller 23, the buffer roller 25 and the first flat roller 27. The rubber 26 is installed on the top surface of the receiving frame 22 at an angle of forty-five degrees, so that the two rubbers 26 are in a V-shaped structure, so that the coal can fall into the interior of the receiving frame 22 better.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly adaptable and flexible belt transfer machine for coal mines, comprising a receiving part (2), a plurality of flexible transport units (3), a transition unit (4) and a discharge part (5), wherein the receiving part (2) is hinged to the tail of a tunnel boring machine (1) through a pin, and the discharge part (5) is located on the top surface of the tail of the tunnel boring machine (7), characterized in that: A plurality of the flexible transport units (3), the flexible transport unit (3) and the material receiving portion (2), and the flexible transport unit (3) and the transition unit (4) are connected by high-strength nuts. The transition unit (4) and the discharge portion (5) are hinged by a pin. The material receiving portion (2) includes a material receiving frame (22), the flexible transport unit (3) includes a curved frame (31), and the transition unit (4) includes a transition frame (41). A second connecting ear (311) is fixed at the front center of the curved frame (31). A walking mechanism (36) and a lifting mechanism (32) are fixed to the left and right sides of the curved frame (31) by bolts. The interior of the curved frame (31) and the bottom surface are respectively An upper belt pressure wheel (33) and a lower belt pressure wheel (35) are fixed by a U-shaped clamp, and a plurality of first grooved rollers (34) and a plurality of second flat rollers (37) are respectively arranged inside the curved frame (31). The lifting mechanism (32) comprises an upper lifting mechanism (321), a lower lifting mechanism (322) and a sliding shoe bottom plate (323). The lifting cylinder (3221) on the lower lifting mechanism is welded to the lower lifting mechanism frame (3222). One end of the lifting cylinder (3221) is fixed to the connecting ear of the upper lifting mechanism (321) by a pin shaft, and the other end is fixed to the connecting ear of the sliding shoe bottom plate (323) by a pin shaft. There is a certain gap between the sliding shoe bottom plate (323) and the lower lifting mechanism (32).

2. A highly adaptable and flexible belt transfer machine for coal mines according to claim 1, characterized in that: The front end of the curved frame (31) is respectively fixed with a first latch structure (312) near the left and right sides, and the front end of the transition frame (41) is respectively fixed with a second latch structure (412) near the left and right sides.

3. The highly adaptable and flexible belt transfer machine for coal mines according to claim 2, characterized in that: A power station (6) is arranged on the top surface of the self-moving machine tail (7), and the unloading part (5) is connected to the power station (6) via a connecting rod and a pin shaft.

4. The highly adaptable and flexible belt transfer machine for coal mines according to claim 3, characterized in that: The lifting mechanisms (32) in the plurality of flexible transport units (3) are independently controlled.

5. The highly adaptable and flexible belt transfer machine for coal mines according to claim 4, characterized in that: A front connecting ear (411) is fixed at the center of the front end of the transition frame (41), and rear connecting ears (413) are respectively fixed near the left and right sides of the rear end of the transition frame (41). A plurality of third flat rollers (42) and a plurality of second grooved rollers (43) are respectively arranged inside the transition frame (41), and a plurality of positioning pressure wheels (44), a plurality of upper pressure belt wheels (45) and a plurality of lower pressure belt wheels (46) are respectively fixed on the top surface of the transition frame (41) through U-shaped clips.

6. The highly adaptable and flexible belt transfer machine for coal mines according to claim 5, characterized in that: The top surface of the receiving frame (22) is respectively fixed with anti-runaway pressure belts (24) near the left and right sides through U-shaped clips.

7. A highly adaptable and flexible belt transfer machine for coal mines according to claim 6, characterized in that: A first connecting ear (21) is fixed at the front center of the receiving frame (22), a driving roller (23) is fixed inside the receiving frame (22) by bolts, a plurality of buffer rollers (25) and a plurality of first flat rollers (27) are respectively arranged inside the receiving frame (22), and a rubber sheet (26) is respectively fixed on the top surface of the receiving frame (22) near the left and right sides by bolts.

8. The highly adaptable and flexible belt transfer machine for coal mines according to claim 7, characterized in that: The rubber (26) is installed at an angle of 45 degrees to the top surface of the receiving frame (22).

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