Downhole modular compact type conveying device, method and system

Abstract

The underground modular compact conveying device comprises a machine body formed by a material receiving part, a transition part and a material unloading part which are sequentially connected, and the machine body is used for bearing an annular conveying belt; the device further comprises a driving mechanism, a tensioning mechanism, a reversing mechanism and a tensioning driving mechanism, the driving mechanism and the tensioning mechanism are sequentially arranged on the portion, close to the discharging part, of the machine body in the material conveying direction, and the reversing mechanism is used for changing the conveying direction of the annular conveying belt, so that the annular conveying belt sequentially bypasses the driving mechanism and the tensioning mechanism in the folded path; the driving mechanism, the reversing mechanism and the tensioning mechanism are arranged in a staggered mode in the height direction, and the driving mechanism is used for providing driving force for the conveying belt; a tensioning mechanism is arranged on the machine body, the tensioning mechanism is used for driving the tensioning mechanism to move in a reciprocating mode, and the belt conveying device has the beneficial effects that the conveying device module is compact, and meanwhile the good belt storing, releasing and tensioning effects can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of coal transportation, and in particular to an underground modular compact transportation device, method and system. Background Art

[0002] Belt conveyor is an important bulk material conveying equipment. It uses the conveyor belt as a traction mechanism and a load-bearing component. The entire conveyor belt is supported on rollers and drives the conveyor belt by friction around the driving roller to complete the task of material transportation. It has a simple structure, long conveying distance, high efficiency, and easy maintenance. Therefore, it is widely used in coal mining, electricity and other fields. Among them, telescopic belt conveyors are mostly used for chute transportation and tunnel excavation transportation in mechanized coal mining working faces in coal mines.

[0003] Patent application JP2000213288A discloses a continuous belt conveyor, comprising a belt storage device, a tail pulley, a head pulley, a driving pulley, a tensioning device and a conveyor belt, wherein the conveyor belt is tensioned and turned into a belt conveyor of standard length by the tensioning device, and the belt storage device is extended in a separated state.

[0004] Although the continuous conveying problem of belt conveyors has been solved, telescopic belt conveyors have requirements for the length of the storage belt. Many belt conveyors on the market still use this method. The storage and release of the belt are realized by a storage device. The storage device is generally composed of a storage bogie, a storage bin frame, a supporting trolley, a tensioning vehicle, a tensioning device frame and a tensioning device. The storage bin adopts a frame structure, and the storage part of the belt is designed to be folded into multiple layers back and forth. The traction wire rope in the hydraulic tensioning device is used to move, tension and change the length of the folded belt to achieve the purpose of storing or releasing the belt. However, in existing devices, the storage device is usually arranged after the belt conveyor, and the distance between the storage and release of the belt is long, which can easily cause the production line to be too long, affecting factors such as coal mining.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art known to a person skilled in the art. Summary of the invention

[0006] The technical problem to be solved by the present invention is: how to achieve compactness of the conveying device module while ensuring good belt storage, belt release and tensioning effects of the endless conveyor belt.

[0007] The present invention solves the above technical problems through the following technical means:

[0008] The present invention claims protection for an underground modular compact conveying device, comprising a body formed by a receiving portion, a transition portion and a discharge portion connected in sequence, wherein the body is used to carry an annular conveyor belt;

[0009] It also includes a driving mechanism, a tensioning mechanism, a reversing mechanism and a tensioning driving mechanism. The driving mechanism and the tensioning mechanism are sequentially arranged on the machine body near the discharge part along the material conveying direction. The reversing mechanism is used to change the conveying direction of the endless conveyor belt, so that the endless conveyor belt sequentially bypasses the driving mechanism and the tensioning mechanism along a folded path. The driving mechanism, the reversing mechanism and the tensioning mechanism are staggered with each other in the height direction. The driving mechanism is used to provide driving force for the conveyor belt.

[0010] A tensioning drive mechanism is installed on the machine body at both sides of the tensioning mechanism, and the tensioning drive mechanism is used to drive the tensioning mechanism to reciprocate along the material conveying direction and adjust the tensioning force of the ring conveyor belt.

[0011] Preferably, the tensioning mechanism is a tensioning car, a first roller is connected to the top of the tensioning car through a first bracket, the axis of the first roller is perpendicular to the material conveying direction, the annular conveyor belt is wound around the first roller, and a roller is arranged below the tensioning car;

[0012] A slide rail is arranged on the unloading part, the length direction of the slide rail is the same as the material conveying direction, and the slide rail and the roller form a slide rail guide match.

[0013] Preferably, the tensioning drive mechanism includes a second bracket, a traction member and a second drive assembly, and the body is provided with one end of the second drive assembly via the second bracket to form a fixed end, wherein the moving end of the second drive assembly generates a reciprocating motion along the material conveying direction, and the moving end of the second drive assembly is connected to the end of the tensioning mechanism via the traction member.

[0014] Preferably, the driving mechanism includes a third bracket, a third roller and a third driving source, the transition portion is connected to the third roller through the third bracket, the axis of the third roller is perpendicular to the material conveying direction, and the annular conveyor belt is wound around the third roller.

[0015] Preferably, the reversing mechanism includes a fourth bracket and a fourth roller, the fourth roller is connected to the machine body via the fourth bracket, the axis of the fourth roller is perpendicular to the material conveying direction, and the annular conveyor belt is wound around the fourth roller.

[0016] Preferably, the material receiving part includes a fifth base plate, a fifth roller, an idler and a fifth bracket. The fifth base plate is installed at the end of the transition part. The fifth roller is connected to the fifth base plate through the fifth bracket. The axis of the fifth roller is perpendicular to the material conveying direction. The endless conveyor belt is wound around the fifth roller. The endless conveyor belt below the fifth roller is provided with an idler, wherein the idler is used to support the endless conveyor belt.

[0017] Preferably, the unloading part includes a sixth bottom plate, an extension frame, a sixth bracket, a sixth roller and a support arm. The sixth bottom plate is installed at the end of the transition part, and the end of the transition part located above the sixth bottom plate is hinged to one end of the extension frame. The other end of the extension frame is connected to the sixth roller through the sixth bracket. One end of the support arm is installed in the middle of the bottom surface of the extension frame, and the other end of the support arm is installed on the sixth bottom plate. The axis of the sixth roller is perpendicular to the material conveying direction, and the annular conveyor belt is wound around the sixth roller.

[0018] Preferably, a plurality of bearing mechanisms are arranged on the transition portion along the length direction of the machine body, the bearing mechanisms include a seventh bracket and a seventh roller, the seventh roller is connected to the transition portion via the seventh bracket, the axis of the seventh roller is perpendicular to the material conveying direction, and the annular conveyor belt is wound around the seventh roller.

[0019] Preferably, the third roller is a permanent magnet synchronous electric roller, which is electrically connected to a power supply and a frequency converter in sequence, and the frequency converter and the power supply constitute a third driving source.

[0020] The present invention claims a method for conveying, using a downhole modular compact conveying device, comprising:

[0021] Monitor the tension value of the endless conveyor belt;

[0022] Comparing the tensioning force value with a predetermined range, wherein the predetermined range is a tensioning force threshold range under normal conveying conditions;

[0023] Based on the comparison result, the tensioning drive mechanism is started and the tensioning mechanism is driven to make corresponding adjustments until the tensioning force value is within a predetermined range.

[0024] The present invention claims a delivery system, using a delivery method, comprising:

[0025] A monitoring unit, used to monitor the tension value of the endless conveyor belt;

[0026] A comparison unit, used for comparing the tensioning force value with a predetermined range, wherein the predetermined range is a tensioning force threshold range under normal conveying conditions;

[0027] The adjustment unit is used to start the tensioning drive mechanism based on the comparison result, and drive the tensioning mechanism to make corresponding adjustments until the tensioning force value is within a predetermined range.

[0028] The advantages of the present invention are:

[0029] First, the conveying device arranges the tensioning mechanism before the driving mechanism, so that the length of the machine head, that is, the unloading part, can be shortened. In this way, the problem of long storage and unloading time, excessive production line stoppage and affected coal production caused by the arrangement of the belt storage device at the rear of the conveying device, that is, the receiving part, in the prior art is greatly reduced;

[0030] At the same time, in conjunction with the reversing mechanism, the endless conveyor belt is made to bypass the driving mechanism and the tensioning mechanism in sequence along a folded path, so that the tensioning force of the endless conveyor belt can be adjusted by driving the tensioning mechanism to move back and forth along the material conveying direction. Of course, this is not the only advantage of this design. It can be clearly seen that compared with the existing belt storage device arrangement, the device of the present invention replaces the original combination of the belt storage device and the tensioning device with the tensioning mechanism, making the overall arrangement more compact and modular, and is very suitable for installation in complex and narrow environments such as underground.

[0031] Second, by arranging the tensioning car and the slide rail, the roller at the bottom of the tensioning car and the slide rail form a slide rail guide, so that when the tensioning car slides, the tensioning car itself has a high guiding accuracy, and the rolling friction between the roller and the slide rail makes the tensioning car move lightly and smoothly, with small friction between each other and high durability. Not only that, the direction of the tensioning car can be well controlled, and the coordination between the first roller on the top of the tensioning car and the endless conveyor belt is also well controlled, preventing the endless conveyor belt from offsetting with the first roller, causing problems such as streamers and slipping.

[0032] 3. The tensioning drive mechanism is arranged on both sides of the machine body and is almost flush with the tensioning car. In this way, the moving path of the extended end of the tensioning drive mechanism is parallel to the moving direction of the tensioning car, which still means that, firstly, the deviation caused by uneven force is reduced, and secondly, the tensioning drive mechanism is arranged to fit the machine body almost well, making the entire device structure more compact.

[0033] Fourth, according to common sense, the reversing mechanism is generally located at the corner of the folded path. In fact, in order to separate the driving mechanism and the tensioning mechanism from each other, a fourth roller can also be arranged near the driving mechanism, the tensioning mechanism and the endless conveyor belt to support the fourth roller, so that the endless conveyor belt fits more closely to the driving mechanism and the tensioning mechanism, and avoids the endless conveyor belt sliding down due to gravity, resulting in loosening or interfering with the operation of other components;

[0034] Furthermore, the reversing mechanism is preferably the fourth roller. The rollers and pulleys that can achieve this effect on the market are also suitable for the present invention. In general, the reversing mechanism can: firstly, utilize the reversing characteristics of the fourth roller to achieve flexible layout, making the device more compact and modular; secondly, on this basis, the supporting effect of the roller can be utilized and added near other rollers that are in contact with the endless conveyor belt, which can reduce the bending stress and friction of the conveyor belt and avoid premature aging; thirdly, the supported endless conveyor belt has a stronger bearing capacity, which can not only improve the conveying efficiency, but also prevent loosening and causing danger to personnel, thereby improving safety.

[0035] 5. Install rollers at the material receiving part to reduce the impact of materials on the circular conveyor belt when the materials are dropped, which is beneficial to prolong the life of the circular conveyor belt.

[0036] 6. The extension frame is connected to the transition part by hinged connection, and the unloading height can be properly adjusted.

[0037] 7. By setting up permanent magnet synchronous electric roller, frequency converter and power supply, frequency conversion soft start is adopted to reduce the start impact of the device and extend the start time. It can realize heavy load start, not only has good speed regulation function, but also has constant torque speed regulation characteristics within the rated frequency range; it can also run at low speed for a long time; the temperature rise is lower than the temperature requirement of the running equipment; the advantage worth mentioning is that due to the use of vector control technology, the drive mechanism has twice the overload torque and 2.2 times the starting torque; not to mention, it also has the advantages of simple installation structure and basically maintenance-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of a downhole modular compact conveying device in Embodiment 1 of the present invention;

[0039] Figure 2 This is a schematic diagram of cutting and segmenting a modular and compact underground conveying device in the first embodiment of the present invention;

[0040] Figure 3 It is a schematic diagram of the unloading part in the first embodiment of the present invention;

[0041] Figure 4 is a schematic diagram of a transition portion in Embodiment 1 of the present invention;

[0042] Figure 5 It is a side view of the discharge part in the first embodiment of the present invention;

[0043] Figure 6 is a top view of the discharge portion in the first embodiment of the present invention;

[0044] Figure 7 is a schematic diagram of the trajectory of the endless conveyor belt in the first embodiment of the present invention;

[0045] Figure 8 is a schematic diagram of the conveying method in the second embodiment of the present invention;

[0046] Fig. 9 It is a schematic diagram of the conveying system in the third embodiment of the present invention.

[0047] 1. Material receiving part; 11. Fifth bottom plate; 12. Fifth roller; 13. Support roller; 14. Fifth bracket;

[0048] 2. Transition section;

[0049] 3. Discharging part; 30. Slide rail; 31. Sixth bottom plate; 32. Extension frame; 33. Sixth bracket; 34. Sixth roller; 35. Support arm;

[0050] 4. driving mechanism; 41. third bracket; 42. third roller; 43. third driving source;

[0051] 5. Tensioning mechanism; 51. First bracket rotates; 52. First roller;

[0052] 6. Reversing mechanism; 61. Fourth bracket; 62. Fourth roller;

[0053] 7. tensioning drive mechanism; 71. second bracket; 72. traction member; 73. second drive assembly;

[0054] 8. Carrying mechanism; 81. Seventh bracket; 82. Seventh roller. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Embodiment 1

[0057] See also Figure 1 and Figure 2 This embodiment claims protection for an underground modular compact conveying device, including a body formed by a receiving portion 1, a transition portion 2 and a discharge portion 3 connected in sequence, and the body adopts a mode of unloading at the head and receiving at the tail.

[0058] See also Figure 3Among them, according to the material conveying direction, the receiving part 1 is the tail of the machine body, and the receiving part 1 includes a fifth bottom plate 11, a fifth roller 12, a roller 13 and a fifth bracket 14. The fifth bottom plate 11 is installed at the end of the transition part 2. The fifth bottom plate 11 is a horizontal plate style. The fifth roller 12 is transferred to the fifth bottom plate 11 through the fifth bracket 14. In actual processing, the fifth bracket 14 is installed on the fifth bottom plate 11 by bolts, which is convenient for installation and disassembly, and also convenient for personnel to adjust the position. The fifth roller 12 is in the shape of a roller, and has a diameter of 500 mm. The axis of the fifth roller 12 is perpendicular to the material conveying direction. The endless conveyor belt is wound around the fifth roller 12. An idler roller 13 is arranged on the endless conveyor belt below the fifth roller 12. The idler roller 13 is arranged at the material receiving portion. The shape of the idler roller 13 is usually an inverted trapezoid, so that the surface of the idler roller 13 fits the surface of the endless conveyor belt, which plays a good supporting role. The idler roller 13 is fixed to the fifth bottom plate 11 by bolts. When the material is dropped, the impact of the material on the endless conveyor belt can be reduced, which is beneficial to improve the service life of the endless conveyor belt.

[0059] See also Figure 4 The transition part 2 is the middle part of the machine body. A plurality of bearing mechanisms 8 are arranged on the transition part 2 along the length direction of the machine body. The bearing mechanism 8 includes a seventh bracket 81 and a seventh roller 82. The seventh bracket 81 on the transition part 2 is connected to the seventh roller 82. The seventh bracket 81 is generally a square frame or a U-shaped frame. The seventh roller 82 is installed on the transition part 2 at the bottom of the seventh bracket 81 by bolts or welding. The seventh roller 82 is connected to the inside of the seventh roller 82 by a rotating shaft. The seventh roller 82 is cylindrical, and the axis of the seventh roller 82 is perpendicular to the material conveying direction. The annular conveyor belt is wound around the seventh roller 82.

[0060] See also Figure 5The unloading part 3 is the head of the machine body. The unloading part 3 includes a sixth bottom plate 31, an extension frame 32, a sixth bracket 33, a sixth roller 34 and a support arm 35. The sixth bottom plate 31 is installed at the end of the transition part 2. Usually, the fifth bottom plate 11, the transition part 2 and the sixth bottom plate 31 are welded in sequence to form a whole flat plate structure, which can ensure the overall stability and rigidity of the conveying device. The end of the transition part 2 located above the sixth bottom plate 31 is hinged to one end of the extension frame 32, and the other end of the extension frame 32 is transferred to the sixth roller 34 through the sixth bracket 33. One end of the support arm 35 is installed in the middle of the bottom surface of the extension frame 32, and the other end of the support arm 35 is installed on the sixth bottom plate 31, the extension frame 32 is connected to the transition portion 2 by a hinged manner. It is worth mentioning that the two ends of the support arm 35 are respectively connected to the extension frame 32 and the sixth base plate 31 by fixing bolts. Therefore, the support arm 35, the extension frame 32 and the sixth base plate 31 form a stable triangular support structure, which plays a stable supporting role for the sixth roller 34. At the same time, by removing the fixing bolts, the extension frame 32 can be rotated along the hinge point, and the sixth roller 34 can be lowered, and the unloading height can be appropriately adjusted. The axis of the sixth roller 34 is perpendicular to the material conveying direction, and the annular conveyor belt is wound around the sixth roller 34.

[0061] Among them, the machine body is used to carry the endless conveyor belt; Figure 5 An underground modular compact conveying device also includes a driving mechanism 4, a tensioning mechanism 5, a reversing mechanism 6 and a tensioning driving mechanism 7. Along the material conveying direction, the driving mechanism 4 and the tensioning mechanism 5 are arranged in sequence on the machine body near the discharge part 3.

[0062] Furthermore, the tensioning mechanism 5 is a tensioning car, which is a prior art in the field, similar to a tensioning winch. The first roller 52 is connected to the tensioning car through a first bracket 51. The diameter of the first roller 52 is usually 630 mm. The axis of the first roller 52 is perpendicular to the material conveying direction. The annular conveyor belt is wound around the first roller 52, and a roller is arranged under the tensioning car.

[0063] A slide rail 30 is installed on the discharge part 3. The length direction of the slide rail 30 is the same as the material conveying direction. The slide rail 30 and the roller form a guide for the slide rail 30.

[0064] By arranging the tensioning car and the slide rail 30, the roller at the bottom of the tensioning car and the slide rail 30 form a slide rail guide, so that when the tensioning car slides, the tensioning car itself has a high guiding accuracy, and the rolling friction between the roller and the slide rail 30 makes the tensioning car move lightly and smoothly, with small friction between each other and high durability. Not only that, the direction of the tensioning car can be well controlled, and the coordination between the first roller 52 on the top of the tensioning car and the endless conveyor belt is also well controlled, preventing the endless conveyor belt and the first roller 52 from offsetting, causing streamers and slipping problems.

[0065] The reversing mechanism 6 is used to change the conveying direction of the endless conveyor belt, so that the endless conveyor belt bypasses the driving mechanism 4 and the tensioning mechanism 5 in sequence along a folded path; further, the reversing mechanism 6 includes a fourth bracket 61 and a fourth roller 62, and the reversing mechanism 6 is partially distributed in the transition part 2 and partially distributed on the unloading part 3. The fourth roller 62 is connected to the machine body through the fourth bracket 61, and the fourth bracket 6 is installed at the corresponding position by bolts. The axis of the fourth roller 62 is perpendicular to the material conveying direction, and the endless conveyor belt is wound around the fourth roller 62.

[0066] According to common sense, the reversing mechanism 6 is generally located at the corner of the folded path. In fact, in order to separate the driving mechanism 4 and the tensioning mechanism 5 from each other, a fourth roller 62 can also be arranged near the driving mechanism 4 and the tensioning mechanism 5 and the endless conveyor belt to support the fourth roller 62, so that the endless conveyor belt fits more closely to the driving mechanism 4 and the tensioning mechanism 5, thereby preventing the endless conveyor belt from sliding down due to gravity, causing it to loosen or interfere with the operation of other components.

[0067] Furthermore, the reversing mechanism 6 is preferably a fourth roller 62. The rollers and pulleys that can achieve this effect on the market are also suitable for the present invention. Generally speaking, the setting of the reversing mechanism 6 can have the following advantages: First, the reversing characteristics of the fourth roller 62 can be utilized. The fourth roller with the reversing characteristics usually has a diameter of 250 mm. Flexible layout can be achieved through the reversing effect, making an underground modular and compact conveying device more compact and modular. Second, on this basis, the supporting effect of the roller can also be utilized. The diameter of the fourth roller with the supporting effect is 320 mm. It is added near other rollers that are in contact with the annular conveyor belt, which can reduce the bending stress and friction of the conveyor belt and avoid premature aging. Third, the supported annular conveyor belt has a stronger bearing capacity, which can not only improve the conveying efficiency, but also prevent loosening and causing personnel danger, thereby improving safety.

[0068] The driving mechanism 4, the reversing mechanism 6 and the tensioning mechanism 5 are staggered with each other in the height direction, wherein the driving mechanism 4 is used to provide driving force for the conveyor belt; the driving mechanism 4 includes a third bracket 41, a third roller 42 and a third driving source 43, the transition portion 2 is connected to the third roller 42 through the third bracket 41, the axis of the third roller 42 is perpendicular to the material conveying direction, and the annular conveyor belt is wound around the third roller 42.

[0069] Furthermore, the third roller 42 is a permanent magnet synchronous electric roller, which is electrically connected to a frequency converter and a power supply in sequence, and the frequency converter and the power supply constitute a third driving source 43 .

[0070] By setting up permanent magnet synchronous electric roller, frequency converter and power supply, the diameter of permanent magnet synchronous electric roller is usually 630 mm, and variable frequency soft start is adopted to reduce the start impact of the device and extend the start time. It can realize heavy load start, not only has good speed regulation function, but also has constant torque speed regulation characteristics within the rated frequency range; it can also run at low speed for a long time; the temperature rise is lower than the temperature requirement of the running equipment; the advantage worth mentioning is that due to the use of vector control technology, the drive mechanism 4 has twice the overload torque and two-point two times the starting torque; not to mention, it also has the advantages of simple installation structure and basically maintenance-free.

[0071] A tensioning drive mechanism 7 is installed on the machine body at both sides of the tensioning mechanism 5. The tensioning drive mechanism 7 is used to drive the tensioning mechanism 5 to move back and forth along the material conveying direction to adjust the tension of the endless conveyor belt; Figure 6 Furthermore, the tensioning drive mechanism 7 includes a second bracket 71, a traction member 72 and a second drive assembly 73. The body is provided with one end of the second drive assembly 73 through the second bracket 71 to form a fixed end, wherein the moving end of the second drive assembly 73 generates a reciprocating motion along the material conveying direction, and the moving end of the second drive assembly 73 is connected to the end of the tensioning mechanism 5 through the traction member 72.

[0072] It is worth noting that the second driving assembly 73 can be a hydraulic cylinder or a pneumatic cylinder, but is preferably a hydraulic cylinder with a greater bearing capacity. Secondly, the traction member 72 can be a traction rope, which can be buckled to the end of the tensioning mechanism 5 through a rope buckle.

[0073] The advantage of embodiment 1 is that the conveying device can shorten the length of the machine head, that is, the unloading part, by arranging the tensioning mechanism 5 before the driving mechanism 4. In this way, the problem in the prior art that the belt storage device is arranged at the rear part of the conveying device, that is, the receiving part 1, resulting in a long storage and unloading time, causing the production line to be too long and affecting the coal production is greatly reduced.

[0074] In the meantime, see Figure 7 , and then cooperate with the reversing mechanism 6 to make the annular conveyor belt bypass the fourth roller 62 on the reversing mechanism 6 in turn, then flow through the first roller 52 on the tensioning mechanism 5, and then bypass the third roller 42 on the driving mechanism 4 to form a folded path. It can be achieved by driving the tensioning mechanism 5 to produce reciprocating movement along the material conveying direction to adjust the tensioning force of the annular conveyor belt. Of course, this is not the only benefit of this design. It can be clearly seen that the tensioning mechanism of the present invention replaces the existing belt storage device arrangement and tensioning device, which can not only achieve the effects of tensioning, belt storage and belt release, but also make the arrangement more compact and modular, which is very suitable for installation in complex and narrow environments such as underground.

[0075] Embodiment 2

[0076] See also Figure 8 This embodiment protects a transportation method, using a downhole modular compact transportation device described in the first embodiment, including:

[0077] In step S1, a detection component for detecting the tension value, such as a belt tensioner, may be provided on any bracket, and the detection probe of the detection component may be arranged on the surface of the endless conveyor belt to monitor the tension value of the endless conveyor belt.

[0078] In step S2, the tension value is compared with a predetermined range, wherein the predetermined range is a tension threshold range under normal conveying conditions.

[0079] In step S3, based on the comparison result, the tensioning drive mechanism 7 is started, for example, the tensioning mechanism 5 is driven to make corresponding adjustments until the tensioning force value is within a predetermined range. For example, if the tensioning force is too large, the endless conveyor belt will be too tight, which will cause serious wear on the endless conveyor belt. Therefore, the tensioning force value needs to be reduced, and the tensioning mechanism 5 can be driven to move toward the direction close to the driving device. In any case, the same principle will not be repeated.

[0080] Embodiment 3

[0081] See also Fig. 9 This embodiment protects a conveying system, and applies a conveying method in the second embodiment, including:

[0082] A monitoring unit, used to monitor the tension value of the endless conveyor belt;

[0083] A comparison unit, used for comparing the tensioning force value with a predetermined range, wherein the predetermined range is a tensioning force threshold range under normal conveying conditions;

[0084] The adjustment unit is used to start the tensioning drive mechanism 7 based on the comparison result, and drive the tensioning mechanism 5 to perform corresponding adjustments until the tensioning force value is within a predetermined range.

[0085] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular and compact underground conveying device, characterized in that: The machine body comprises a receiving portion (1), a transition portion (2) and a discharge portion (3) connected in sequence, wherein the machine body is used to carry an endless conveyor belt; The machine also comprises a driving mechanism (4), a tensioning mechanism (5), a reversing mechanism (6) and a tensioning driving mechanism (7). The driving mechanism (4) and the tensioning mechanism (5) are arranged in sequence on the machine body near the discharge part (3) along the material conveying direction. The reversing mechanism (6) is used to change the conveying direction of the endless conveyor belt so that the endless conveyor belt passes around the driving mechanism (4) and the tensioning mechanism (5) in sequence along a folded path. The driving mechanism (4), the reversing mechanism (6) and the tensioning mechanism (5) are arranged staggered with each other in the height direction. The driving mechanism (4) is used to provide driving force for the conveyor belt. A tensioning drive mechanism (7) is installed on the machine body at both sides of the tensioning mechanism (5), and the tensioning drive mechanism (7) is used to drive the tensioning mechanism (5) to generate reciprocating movement along the material conveying direction, thereby adjusting the tensioning force of the ring conveyor belt.

2. A modular and compact underground conveying device according to claim 1, characterized in that: The tensioning mechanism (5) is a tensioning vehicle, a first roller (52) is connected to the tensioning vehicle via a first bracket (51), the axis of the first roller (52) and the material conveying direction are perpendicular to each other, an endless conveyor belt is wound around the first roller (52), and a roller is arranged below the tensioning vehicle; A slide rail (30) is arranged on the discharge part (3), the length direction of the slide rail (30) is the same as the material conveying direction, and the slide rail (30) and the roller form a guide fit for the slide rail (30).

3. The underground modular compact conveying device according to claim 1, characterized in that: The tensioning drive mechanism (7) comprises a second bracket (71), a traction member (72) and a second drive assembly (73); the machine body is provided with one end of the second drive assembly (73) via the second bracket (71) to form a fixed end; the movable end of the second drive assembly (73) generates a reciprocating motion along the material conveying direction; and the movable end of the second drive assembly (73) is connected to the end of the tensioning mechanism (5) via the traction member (72).

4. The underground modular compact conveying device according to claim 1, characterized in that: The driving mechanism (4) comprises a third bracket (41), a third roller (42) and a third driving source (43); the transition portion (2) is connected to the third roller (42) via the third bracket (41); the axis of the third roller (42) is perpendicular to the material conveying direction; and the annular conveyor belt is wound around the third roller (42).

5. The underground modular compact conveying device according to claim 1, characterized in that: The reversing mechanism (6) comprises a fourth bracket (61) and a fourth roller (62). The fourth roller (62) is connected to the machine body via the fourth bracket (61). The axis of the fourth roller (62) is perpendicular to the material conveying direction. The annular conveyor belt is wound around the fourth roller (62).

6. The underground modular compact conveying device according to claim 1, characterized in that: The material receiving part (1) comprises a fifth bottom plate (11), a fifth roller (12), a support roller (13) and a fifth bracket (14); the fifth bottom plate (11) is arranged at the end of the transition part (2); the fifth roller (12) is connected to the fifth bottom plate (11) via the fifth bracket (14); the axis of the fifth roller (12) is perpendicular to the material conveying direction; the endless conveyor belt is wound around the fifth roller (12); and the support roller (13) is arranged on the endless conveyor belt below the fifth roller (12); wherein the support roller (13) is used to support the endless conveyor belt.

7. The underground modular compact conveying device according to claim 1, characterized in that: The unloading part (3) comprises a sixth bottom plate (31), an extension frame (32), a sixth bracket (33), a sixth roller (34) and a support arm (35); the sixth bottom plate (31) is arranged at the end of the transition part (2); the end of the transition part (2) located above the sixth bottom plate (31) is hinged to one end of the extension frame (32); the other end of the extension frame (32) is connected to the sixth roller (34) through the sixth bracket (33); one end of the support arm (35) is arranged at the middle of the bottom surface of the extension frame (32); the other end of the support arm (35) is arranged on the sixth bottom plate (31); the axis of the sixth roller (34) is perpendicular to the material conveying direction; and an endless conveyor belt is wound around the sixth roller (34).

8. The underground modular compact conveying device according to claim 1, characterized in that: A plurality of bearing mechanisms (8) are arranged on the transition portion (2) along the length direction of the machine body, the bearing mechanisms (8) comprising a seventh bracket (81) and a seventh roller (82), the seventh bracket (81) is connected to the seventh roller (82) on the transition portion (2), the axis of the seventh roller (82) is perpendicular to the material conveying direction, and the annular conveyor belt is wound around the seventh roller (82).

9. The underground modular compact conveying device according to claim 1, characterized in that: The third roller (42) is a permanent magnet synchronous electric roller, which is electrically connected to a frequency converter and a power supply in sequence, and the frequency converter and the power supply constitute a third driving source (43).

10. A transportation method, using a downhole modular compact transportation device according to any one of claims 1 to 8, characterized in that: include: Monitor the tension value of the endless conveyor belt; Comparing the tensioning force value with a predetermined range, wherein the predetermined range is a tensioning force threshold range under normal conveying conditions; Based on the comparison result, the tensioning drive mechanism (7) is started to drive the tensioning mechanism (5) to make corresponding adjustments until the tensioning force value is within a predetermined range.

11. A conveying system, using a conveying method according to claim 9, characterized in that: include: A monitoring unit, used to monitor the tension value of the endless conveyor belt; A comparison unit, used for comparing the tensioning force value with a predetermined range, wherein the predetermined range is a tensioning force threshold range under normal conveying conditions; The adjustment unit is used to start the tensioning drive mechanism (7) based on the comparison result, and drive the tensioning mechanism (5) to perform corresponding adjustments until the tensioning force value is within a predetermined range.

Images