Intelligent downhole belt conveyor

Abstract

The application discloses an intelligent underground rubber belt conveyor and relates to the technical field of underground coal mine transportation.The application supports a plurality of circumferentially arranged supporting rods on the left side of the inside of an adjustable cylinder skin and supports a plurality of circumferentially arranged hydraulic rods on the right side of the inside of the adjustable cylinder skin.Under the hydraulic drive, the plurality of hydraulic rods are synchronously adjusted to extend and retract, so that the outer diameter of the right side of the roller can be adjusted when the conveying belt deviates, the driving force of the left and right sides of the roller is adjusted by changing the size ratio of the outer diameters of the left and right sides of the roller, automatic correction of the conveying belt after deviation is realized, response is timely, manual correction is not needed, and the stability and high efficiency of the rubber belt conveyor in the intelligent underground transportation of coal mines can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground coal mine transportation, and particularly relates to an intelligent underground belt conveyor. BACKGROUND

[0002] The belt conveyor is a core conveying device in underground coal mining operations, which undertakes the key task of efficiently transferring the mined coal from the working face to the storage or hoisting system. The running stability of the belt conveyor directly determines the efficiency and production continuity of underground mining transportation.

[0003] Currently, the underground coal mining environment is complex, and the coal loading process is easily affected by factors such as coal quantity fluctuation of the mining working face, deviation of the material dropping point positioning, and uneven coal particle size, which breaks the force balance and gravity center balance of the conveyor belt during the loading process. During continuous high-speed operation, it is easy to cause the conveyor belt to deviate to one side, which will cause abnormal friction between the conveyor belt edge and the surrounding structures such as the conveyor rack, carrier roller, and coal baffle. If the deviation problem is not corrected in time, as the deviation amount increases, it may further cause the conveyor belt to derail, jam, and tear, etc. Therefore, the deviation of the conveyor belt in the belt conveyor needs to be adjusted in time. The existing belt conveyor relies on manual inspection to find the deviation problem, and then manually adjusts it, which has the defects of response lag, low adjustment accuracy, high labor cost, etc. It is difficult to meet the needs of stability and intelligence of transportation equipment under complex underground conditions, which affects the progress and transportation efficiency of underground mining operations. SUMMARY

[0004] The purpose of the present application is to solve the problem in the prior art that the belt conveyor for underground mining needs to be manually adjusted after artificial inspection when the belt deviates due to loading deviation, which has the defects of response lag, low adjustment accuracy, high labor cost, etc. Therefore, an intelligent underground belt conveyor is proposed.

[0005] In order to solve the problems in the prior art, the present application adopts the following technical solutions:

[0006] The utility model provides an intelligent downhole adhesive tape conveyor, which comprises a rack, transversely arranged rollers rotatably installed at the front and rear ends of the rack, a conveying belt transmissionally sleeved between the front and rear rollers, a servo motor fixedly installed on the rack for driving the rollers to rotate, a plurality of uniformly distributed carrier roller assemblies installed on the rack and supported below the load-carrying section of the conveying belt, and the rollers each comprising a rotating shaft rotatably connected with the rack, first and second supports fixedly installed on the left and right sides of the rotating shaft respectively, a plurality of support rods fixedly installed on the first support and circumjacent to the rotating shaft, first shaft seats hingedly connected to the ends of the support rods away from the rotating shaft, a plurality of hydraulic rods fixedly installed on the second support and circumjacent to the rotating shaft, second shaft seats hingedly connected to the ends of the hydraulic rods away from the rotating shaft, the plurality of hydraulic rods corresponding to the plurality of support rods, an adjustable cylinder skin sleeved outside the first and second supports and connected with the plurality of first and second shaft seats, and the conveying belt transmissionally sleeved outside the adjustable cylinder skin.

[0007] Preferably, the carrier roller assembly comprises a roller holder fixedly connected with the rack, a first roller rotatably installed at the middle position of the roller holder and arranged transversely, second rollers rotatably installed on the roller holder and symmetrically arranged on the left and right sides of the first roller, the end of each second roller away from the first roller being upwardly inclined, the first and second rollers being rollingly supported below the load-carrying section of the conveying belt, and a pressure sensor fixedly installed on the roller holder and acting on the second rollers on the left and right sides.

[0008] Preferably, an oil channel is formed at the position of the central axis of the rotating shaft, a rotating joint is fixedly installed on the rack and rotatably connected with the end of the rotating shaft, the oil channel is communicated into the rotating joint, and a pipe joint is fixedly installed on the cylindrical surface of the rotating shaft and communicated with the inside of the oil channel.

[0009] Preferably, an auxiliary support mechanism is installed between the first and second supports, the auxiliary support mechanism comprises a plurality of crossbars fixedly connected between the first and second supports, the plurality of crossbars are uniformly distributed around the rotating shaft, one support rod and one hydraulic rod are respectively arranged at the left and right ends of one crossbar, an axle sleeve is hingedly connected in the crossbar, an auxiliary rod is slidably inserted into the axle sleeve, a third shaft seat is hingedly connected to the end of the auxiliary rod away from the rotating shaft, the third shaft seat is connected with the adjustable cylinder skin, and a locking mechanism is installed in the axle sleeve.

[0010] Preferably, the locking mechanism comprises a cavity formed in the axle sleeve and sleeved outside the auxiliary rod, an elastic ring is fixedly installed in the cavity and circumjacent to the auxiliary rod, the elastic ring is tightly clamped outside the auxiliary rod, an oil inlet is fixedly installed on the axle sleeve, an oil inlet channel is formed in the axle sleeve and communicated into the cavity, an oil outlet is fixedly installed on the axle sleeve, an oil outlet channel is formed in the axle sleeve and communicated into the cavity, and the oil inlet channel and the oil outlet channel are respectively located on the two sides of the elastic ring.

[0011] Preferably, the oil inlet channel is provided with multiple oil inlet channels, the multiple oil inlet channels are distributed around the shaft sleeve, a first ring channel is provided around the shaft sleeve and is in communication with the multiple oil inlet channels, and the first ring channel is in communication with the oil inlet interface; the oil outlet channel is provided with multiple oil outlet channels, the multiple oil outlet channels are distributed around the shaft sleeve, a second ring channel is provided around the shaft sleeve and is in communication with the multiple oil outlet channels, and the second ring channel is in communication with the oil outlet interface.

[0012] Preferably, the oil inlet interface and the oil outlet interface on the multiple shaft sleeves are sequentially connected in series, the oil inlet interface on the first shaft sleeve is connected with the pipe joint through a first electric control valve, and the pipe joint is connected with the multiple hydraulic rods through a second electric control valve.

[0013] Preferably, the oil outlet interface on the last shaft sleeve is connected with a hydraulic sensor.

[0014] Preferably, the adjustable drum skin comprises a drum body in a C-shaped structure, one side of the drum body is fixedly connected with a first arc plate, the other side of the drum body is fixedly connected with a second arc plate which slides and covers the outside of the first arc plate, the drum body, the first arc plate and the second arc plate form a cylindrical structure, a through slot is formed in the first arc plate, and a tension spring is installed in the through slot and elastically connected between the drum body and the second arc plate.

[0015] Preferably, the first shaft seat, the second shaft seat and the third shaft seat located on the same straight line are connected with straight rails, the multiple straight rails are correspondingly provided with the multiple cross rods, the first shaft seat is firmly connected with the straight rail through a rivet, the second shaft seat and the third shaft seat are slidingly connected with the straight rail, one of the straight rails is fixedly connected with the first arc plate, multiple arc-shaped rails are fixedly installed on the inner end wall of the drum body and the first arc plate, and a clamping block is fixedly installed on the straight rail and slidingly connected with the arc-shaped rail.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. In the present application, multiple support rods are supported in the left side of the adjustable drum skin, and multiple hydraulic rods are supported in the right side of the adjustable drum skin, under the action of hydraulic drive, the multiple hydraulic rods are controlled to synchronously extend and retract, so that the outer diameter of the right side of the drum can be adjusted when the conveyor belt deviates, the driving force of the left and right sides of the drum is adjusted by changing the size ratio of the outer diameters of the left and right sides of the drum, automatic correction of the deviated conveyor belt is realized, the response is timely, and manual correction is not required, which can be beneficial to guarantee the stability and efficiency of the rubber belt conveyor in underground coal transportation.

[0018] 2. In this invention, by setting the auxiliary support mechanism in the middle position inside the drum, the middle position inside the adjustable cylinder can be supported, so that the adjustable cylinder remains stable after the outer diameter is adjusted. At the same time, by setting the locking mechanism inside the bushing, the elastic ring tightens the auxiliary rod under normal conditions, and the sliding restriction of the auxiliary rod is released after oil injection, so that stepless locking of the auxiliary rod can be easily realized, which is beneficial to improving the flexibility and stability of the auxiliary support mechanism in supporting the inside of the adjustable cylinder. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a perspective view of the adjustable drum skin after removal by the roller according to the present invention;

[0022] Figure 3 This is a perspective view of the auxiliary support mechanism of the present invention;

[0023] Figure 4 This is a perspective view of the adjustable tube skin of the present invention;

[0024] Figure 5 For the present invention Figure 1 Top view of the structure;

[0025] Figure 6 For the present invention Figure 5 Sectional view at point AA;

[0026] Figure 7 For the present invention Figure 5 Sectional view at point BB;

[0027] Figure 8 This is a top view of the roller of the present invention;

[0028] Figure 9 For the present invention Figure 8 Sectional view at CC;

[0029] Figure 10 For the present invention Figure 9 Enlarged view at point F;

[0030] Figure 11 For the present invention Figure 9 Enlarged view of point G in the middle;

[0031] Figure 12 For the present invention Figure 8 Sectional view at point DD;

[0032] Figure 13 for the present invention Figure 8 a sectional view at E-E in the present invention;

[0033] Figure 14 for the present invention

[0034] in the figure:

[0035] 1, frame; 11, roller; 12, conveyor belt; 13, servo motor;

[0036] 2, idler assembly; 21, roller bracket; 22, first roller; 23, second roller;

[0037] 3, rotating shaft; 31, first support; 32, second support; 33, support rod; 34, first shaft seat; 35, hydraulic rod; 36, second shaft seat; 37, adjustable cylinder skin;

[0038] 4, oil channel; 41, adapter; 42, pipe joint;

[0039] 5, cross rod; 51, shaft sleeve; 52, auxiliary rod; 53, third shaft seat;

[0040] 600, locking mechanism; 6, chamber; 61, elastic ring; 62, oil inlet interface; 63, oil inlet channel; 64, first ring channel; 65, oil outlet interface; 66, oil outlet channel; 67, second ring channel;

[0041] 7, cylinder body; 71, first arc plate; 72, second arc plate; 73, through slot; 74, tension spring;

[0042] 8, straight rail; 81, arc rail; 82, clamping block;

[0043] 9, hydraulic pump; 91, first electric control valve; 92, second electric control valve; 93, hydraulic sensor. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0045] Embodiment: The present embodiment provides an intelligent downhole rubber belt conveyor, referring to Figure 1 - Figure 14Specifically, it comprises a rack 1, transversely arranged rollers 11 rotatably installed at both ends of the rack 1, a conveying belt 12 drivingly sleeved between the two rollers 11, a servo motor 13 fixedly installed on the rack 1 for driving the rollers 11 to rotate, a plurality of evenly distributed roller assemblies 2 installed on the rack 1 and supported below a load-carrying section of the conveying belt 12, each roller assembly 2 comprising a roller bracket 21 fixedly connected with the rack 1, a first roller 22 transversely and rotatably installed at a middle position of the roller bracket 21, and second rollers 23 symmetrically and rotatably installed on the roller bracket 21 at left and right sides of the first roller 22, each second roller 23 being upwardly inclined at an end away from the first roller 22, the first roller 22 and the second rollers 23 being rotatably supported below the load-carrying section of the conveying belt 12, and a pressure sensor fixedly installed on the roller bracket 21 and acting on the second rollers 23.

[0046] The roller 11 comprises a rotating shaft 3 rotatably connected with the rack 1, first and second brackets 31 and 32 fixedly installed at left and right sides of the rotating shaft 3, a plurality of support rods 33 fixedly installed on the first bracket 31 and circumjacent to the rotating shaft 3, first shaft seats 34 hingedly connected at one ends of the support rods 33 away from the rotating shaft 3, a plurality of hydraulic rods 35 fixedly installed on the second bracket 32 and circumjacent to the rotating shaft 3, second shaft seats 36 hingedly connected at one ends of piston rods of the hydraulic rods 35 away from the rotating shaft 3, the plurality of hydraulic rods 35 being correspondingly arranged with the plurality of support rods 33, an adjustable cylinder skin 37 sleeved outside the first and second brackets 31 and 32 and connected with the first and second shaft seats 34 and 36, and the conveying belt 12 drivingly sleeved outside the adjustable cylinder skin 37.

[0047] When the device is in use, a plurality of probes are installed on the rack 1 and evenly distributed above the load-carrying section of the conveying belt 12, and each probe is obliquely directed to the top of the conveying belt 12, so that the running picture of the device can be monitored in real time, the running state of the device can be remotely patrolled by the staff, the range of shooting and collection of each probe can be effectively increased by obliquely arranging the probes, the use amount of the probes can be reduced, and the remote patrol cost can be saved.

[0048] The device, the roller assembly 2 is supported below the carrying section of the conveying belt 12, by means of the support of the first roller 22 and the second roller 23 on the left and right sides, so that the carrying section of the conveying belt 12 presents a V-shaped structure on the left and right sides, and the loading position of the coal mine is arranged in the V-shaped section area of the carrying section of the conveying belt 12 during the underground mining and transportation process. Through the guidance of the left and right inclined surfaces, the coal mine is located in the middle position of the top of the conveying belt 12 during the loading process, which can effectively reduce the probability of deviation of the conveying belt 12 caused by the deviation of the loading position. When the coal mine is transported, the servo motor 13 is powered on to start, driving the drum 11 connected with the driving shaft to rotate, and driving the conveying belt 12 to rotate continuously by means of the rotation of the drum 11, realizing the underground transportation operation of the coal mine. During this process, the pressure sensor acting on the second roller 23 on the left and right sides in the roller frame 21 of each roller assembly 2 can monitor the stress of the coal mine on the carrying section of the conveying belt 12 in real time, which is convenient for the staff to remotely monitor the running state of the device.

[0049] During operation, when the conveying belt 12 deviates, the data detected by the pressure sensor acting on the second roller 23 on the left and right sides installed on the roller frame 21 in the corresponding position of the roller assembly 2 changes instantaneously. Under normal circumstances, the pressure received by the second roller 23 on the left and right sides is basically consistent, and the fluctuation change is in the stable area. When the conveying belt 12 deviates to one side, the pressure received by the corresponding second roller 23 will suddenly increase, and the pressure received by the second roller 23 on the other side will decrease significantly. By detecting the change of the pressure received by the pressure sensor on the left and right sides, the deviation direction of the conveying belt 12 is automatically determined, and according to the deviation condition, the multiple hydraulic rods 35 are flexibly controlled to realize the automatic correction operation of the deviation of the conveying belt 12.

[0050] The plurality of hydraulic rods 35 are connected with the hydraulic pump 9, and the extension and retraction state of the piston rod of the plurality of hydraulic rods 35 can be controlled through the hydraulic pump 9. Since the plurality of hydraulic rods 35 are arranged around the right position in the roller 11, when the conveying belt 12 deviates to the left, it is only necessary to control the piston rod of the plurality of hydraulic rods 35 to extend outward, so as to slightly increase the outer diameter of the right side of the roller 11, so that the outer diameter of the right side of the roller 11 is greater than the outer diameter of the left side of the roller 11. According to the principle of circular motion, the increase of the outer diameter of the right side of the roller 11 causes the linear speed of this side to increase, thereby generating greater driving force to force the conveying belt 12 to deviate to the right under the guidance of the roller 11. During the continuous rotation process, the deviation of the left side of the conveying belt 12 is corrected. After the conveying belt 12 is corrected, the roller 11 returns to the condition that the outer diameters of the left and right sides are consistent. Similarly, when the conveying belt 12 deviates to the right, it is only necessary to control the piston rod of the plurality of hydraulic rods 35 to retract, so as to slightly reduce the outer diameter of the right side of the roller 11, so that the outer diameter of the left side of the roller 11 is greater than the outer diameter of the right end of the roller 11. During the continuous rotation process, the conveying belt 12 deviates to the left under the guidance of the roller 11, thereby correcting the deviation of the right side of the conveying belt 12. After the conveying belt 12 is corrected, the roller 11 returns to the condition that the outer diameters of the left and right ends are consistent.

[0051] The above structure enables the device to timely detect the deviation of the conveying belt 12 and accurately obtain the deviation position and direction of the conveying belt 12 through the feedback of the pressure sensor in the plurality of roller assemblies 2. The extension and retraction control of the piston rod of the plurality of hydraulic rods 35 in the roller 11 adjusts the size ratio of the outer diameters of the left and right sides of the roller 11, thereby automatically correcting the deviation of the conveying belt 12 without manual correction, which is beneficial to the stability and efficiency of the belt conveyor in the underground coal mine transportation.

[0052] In the specific implementation process, as shown in Figure 6 An oil channel 4 is arranged at the central axis position in the rotating shaft 3, a rotating joint 41 is fixedly installed on the rack 1 and rotationally connected with the end of the rotating shaft 3, the oil channel 4 is communicated to the rotating joint 41, and a pipe joint 42 is fixedly installed on the cylindrical surface of the rotating shaft 3 and communicated with the inside of the oil channel 4. When the device is used, the hydraulic oil interface of the plurality of hydraulic rods 35 is connected with the pipe joint 42, the pump oil interface and the oil extraction interface of the hydraulic oil pump are connected with the rotating joint 41, and the pump oil interface of the hydraulic oil pump is communicated with the rotating joint 41 or the oil extraction interface of the hydraulic oil pump is communicated with the rotating joint 41 through the oil path switching structure of the electric control valve.

[0053] Through the oil passage communication among the adapter 41, the oil channel 4 and the pipe joint 42, the pumping or pumping away operation of the hydraulic oil in the plurality of hydraulic rods 35 can be performed. When the hydraulic oil is pumped into the hydraulic rod 35, the piston rod of the hydraulic rod 35 extends outward, driving the outer diameter of the right side of the drum 11 to increase. When the pumping away operation of the hydraulic oil is performed in the hydraulic rod 35, the piston rod of the hydraulic rod 35 retracts, driving the outer diameter of the right side of the drum 11 to decrease. By controlling the pumping or pumping away amount of the hydraulic oil, the extension length of the hydraulic rod 35 is controlled. During the oil passage connection process, the rotation of the drum 11 does not affect the pumping or pumping away of the hydraulic oil by means of the rotation communication of the adapter 41 and the oil channel 4, which is beneficial to ensure the stability of the device during operation.

[0054] In the specific implementation process, as shown in Figure 2 - Figure 3 and Figure 9 - Figure 10 As shown, the auxiliary support mechanism is installed between the first support 31 and the second support 32, and the auxiliary support mechanism comprises a plurality of cross bars 5 fixedly connected between the first support 31 and the second support 32. The plurality of cross bars 5 are uniformly distributed around the rotating shaft 3. One support rod 33 and one hydraulic rod 35 are respectively arranged at the left and right ends of one cross bar 5. The cross bar 5 is hingedly connected with a shaft sleeve 51, and the shaft sleeve 51 is slidably inserted with an auxiliary rod 52. The end of the auxiliary rod 52 away from the rotating shaft 3 is hingedly connected with a third shaft seat 53, and the third shaft seat 53 is connected with the adjustable drum skin 37. The shaft sleeve 51 is provided with a locking mechanism 600.

[0055] The locking mechanism 600 comprises a cavity 6 formed in the shaft sleeve 51 and sleeved outside the auxiliary rod 52. The cavity 6 is fixedly installed with a plurality of elastic rings 61 arranged around. The elastic rings 61 are tightly clamped outside the auxiliary rod 52. The shaft sleeve 51 is fixedly installed with an oil inlet 62. The shaft sleeve 51 is provided with an oil inlet channel 63 communicated with the cavity 6. The shaft sleeve 51 is fixedly installed with an oil outlet 65. The shaft sleeve 51 is provided with an oil outlet channel 66 communicated with the cavity 6. The oil inlet channel 63 and the oil outlet channel 66 are respectively arranged at the two sides of the elastic ring 61. The oil inlet channel 63 is provided with a plurality of oil inlet channels 63. The plurality of oil inlet channels 63 are arranged around the shaft sleeve 51. The shaft sleeve 51 is provided with a first ring channel 64 communicated with the plurality of oil inlet channels 63. The first ring channel 64 is communicated with the oil inlet 62. The oil outlet channel 66 is provided with a plurality of oil outlet channels 66. The plurality of oil outlet channels 66 are arranged around the shaft sleeve 51. The shaft sleeve 51 is provided with a second ring channel 67 communicated with the plurality of oil outlet channels 66. The second ring channel 67 is communicated with the oil outlet 65.

[0056] When the device is in use, the left side of the adjustable drum skin 37 in the roller 11 is supported by a plurality of circumferentially distributed support rods 33, and the right side of the adjustable drum skin 37 is supported by a plurality of circumferentially distributed hydraulic rods 35. When the hydraulic rod 35 is used to adjust the outer diameter of the right side of the roller 11, in order to ensure the structural stability of the adjustable drum skin 37, an auxiliary support structure is arranged in the middle of the roller 11 to support the adjustable drum skin 37. When not adjusted, the elastic ring 61 in the locking mechanism 600 tightly binds the auxiliary rod 52, so that the auxiliary rod 52 is firmly retained in the shaft sleeve 51. In this state, a plurality of auxiliary rods 52 can support the middle position of the adjustable drum skin 37 inside, ensuring the structural stability of the roller 11 during rotation and driving of the conveyor belt 12.

[0057] When the hydraulic rod 35 is used to adjust the outer diameter of the right side of the roller 11, the locking of the auxiliary rod 52 by the locking mechanism 600 needs to be released in advance. In this process, the oil inlet port 62 is in communication with the pipe joint 42, the hydraulic oil is pumped into the oil inlet port 62 through the pipe joint 42, and under the circumferential communication of the first ring channel 64, the hydraulic oil enters the chamber 6 through a plurality of circumferentially distributed oil inlet channels 63. With the pressurized injection of hydraulic oil, the elastic ring 61 is pushed and deformed. The hydraulic oil passes between the elastic ring 61 and the auxiliary rod 52, and is discharged from the oil outlet port 65 through the communication of the oil outlet channel 66 and the second ring channel 67. When the hydraulic oil passes between the elastic ring 61 and the auxiliary rod 52, the tight binding of the elastic ring 61 to the auxiliary rod 52 is released. In this state, the auxiliary rod 52 can slide freely in the shaft sleeve 51.

[0058] Subsequently, when the piston rod of the hydraulic rod 35 extends and retracts, the inner and outer diameters of the adjustable drum skin 37 will change synchronously under the support or pulling of the hydraulic rod 35. Through the connection of the third shaft seat 53 and the adjustable drum skin 37, the auxiliary rod 52 is driven to be adjusted synchronously, and adjusts in the shaft sleeve 51. After the extension and retraction of the piston rod of the hydraulic rod 35 is adjusted, the pressurized injection of hydraulic oil into the chamber 6 is stopped. After losing the support of the hydraulic oil, under the elastic reset of the elastic ring 61, the elastic ring 61 is tightly wrapped around the outside of the auxiliary rod 52 again, limiting the position of the auxiliary rod 52, so that the auxiliary rod 52 and the shaft sleeve 51 restore the state of firm connection. In this state, a plurality of auxiliary rods 52 stably support the adjustable drum skin 37 from the inside middle position, and adaptively ensure the structural stability of the roller 11 after adjustment.

[0059] In the device, when the hydraulic oil is pressurized and injected into the chamber 6 through the oil inlet channel 63, the first ring channel 64 is connected by being circumferentially arranged, and the oil inlet channel 63 is uniformly circumferentially distributed, so that the hydraulic oil can be more uniform when pressurized and injected into the chamber 6, which is beneficial to ensure the stability of the elastic ring 61 being pushed open by the hydraulic oil.

[0060] In the specific implementation process, as shown in Figure 2 , Figure 9 and Figure 14 , the oil inlet interface 62 and the oil outlet interface 65 on the plurality of shaft sleeves 51 are sequentially connected in series, the oil inlet interface 62 on the first shaft sleeve 51 is connected with the pipe joint 42 through the first electric control valve 91, the pipe joint 42 is jointly connected with the plurality of hydraulic rods 35 through the second electric control valve 92, and the oil outlet interface 65 on the last shaft sleeve 51 is connected with the hydraulic sensor 93. When the device is used, the oil paths of the locking mechanisms 600 in the plurality of shaft sleeves 51 are connected in series. When the locking mechanisms 600 are released, the first electric control valve 91 is opened, the second electric control valve 92 is closed, so that the pressurized injected hydraulic oil acts on the oil paths of the locking mechanisms 600. With the continuous injection of hydraulic oil, the pressurized injected hydraulic oil in the first locking mechanism 600 is sequentially delivered to the other chambers 6 connected in series. By connecting the hydraulic sensor 93 to the oil outlet interface 65 of the last locking mechanism 600, the pressure at the end of the oil path can be monitored. When the pressure at the end of the oil path of the locking mechanism 600 is monitored to increase, it indicates that the pressurized injected hydraulic oil acts on all the chambers 6 in sequence, ensuring that the plurality of locking mechanisms 600 have completed the unlocking operation.

[0061] In the unlocking state, the first electric control valve 91 is closed, so that the oil path in the locking mechanism 600 is in a pressure maintaining state, ensuring that the locking mechanism 600 is in the unlocking state for a long time. Then, the second electric control valve 92 is opened, so that the oil path leading to the hydraulic rod 35 is connected with the hydraulic oil pump. By pumping and removing the hydraulic oil in the hydraulic rod 35, the deviation of the conveying belt 12 is corrected. After the adjustment of the hydraulic rod 35 is completed, the second electric control valve 92 is closed, and the first electric control valve 91 is opened, so that the pressurized injection of the hydraulic oil in the chamber 6 is released. With the elastic reset of the elastic ring 61, the auxiliary rod 52 is locked by the locking mechanism 600 again.

[0062] In the specific implementation process, as shown in Figure 4 , Figure 8 and Figure 12As shown, the adjustable cylinder skin 37 includes a cylinder body 7 in a C-shaped cross-section structure, and one side of the cylinder body 7 is fixedly connected with a first arc plate 71, and the other side of the cylinder body 7 is fixedly connected with a second arc plate 72 which is slidably covered outside the first arc plate 71, and the cylinder body 7, the first arc plate 71 and the second arc plate 72 form a cylindrical structure, a through slot 73 is formed in the first arc plate 71, and a tension spring 74 is installed in the through slot 73 and elastically connected between the cylinder body 7 and the second arc plate 72. When the device is used, the cylinder body 7, the first arc plate 71 and the second arc plate 72 form the main body of the adjustable cylinder skin 37, the cylinder body 7, the first arc plate 71 and the second arc plate 72 have a certain degree of elastic deformation ability, and the first arc plate 71 and the second arc plate 72 can slide relative to each other. When the hydraulic rod 35 is used to support the adjustable cylinder skin 37 from the right side of the inside of the roller 11, the right side of the cylinder body 7, the first arc plate 71 and the second arc plate 72 is supported outward, and the right side of the adjustable cylinder skin 37 can be smoothly and smoothly expanded outward by uniformly dispersed support force. When the hydraulic rod 35 is used to apply contraction and pulling to the adjustable cylinder skin 37 from the right side of the inside of the roller 11, the right side of the cylinder body 7, the first arc plate 71 and the second arc plate 72 is pulled inward, and the right side of the adjustable cylinder skin 37 can be stably and smoothly contracted inward by the uniformly dispersed pulling force of the plurality of hydraulic rods 35.

[0063] The variable structure formed by the cylinder body 7, the first arc plate 71 and the second arc plate 72 makes the left and right sides of the roller 11 stable and smooth when the outer diameter is adjusted, and the elastic pulling between the second arc plate 72 and the cylinder body 7 by the tension spring 74 can effectively ensure the stability of the cylindrical structure formed by the cylinder body 7, the first arc plate 71 and the second arc plate 72 in the device, so that the roller 11 can be stably and smoothly rotated. Figure 13 In the direction, during the use of the roller 11 to rotate and drive the conveyor belt 12 to convey, the roller 11 needs to be kept counterclockwise in the conventional state, which makes the second arc plate 72 not abnormally separated from the first arc plate 71 when it contacts and drives the conveyor belt 12 to rotate and convey, but makes the second arc plate 72 and the first arc plate 71 fit more closely, ensuring the stability of the equipment during operation.

[0064] In the specific implementation process, as Figure 9 , Figure 11 - Figure 13As shown, the first shaft seat 34, the second shaft seat 36 and the third shaft seat 53 located on the same straight line are connected with the straight rail 8, a plurality of straight rails 8 are correspondingly arranged with a plurality of cross bars 5, the first shaft seat 34 is firmly connected with the straight rail 8 through a rivet, the second shaft seat 36 and the third shaft seat 53 are slidingly connected with the straight rail 8, one of the straight rails 8 is fixedly connected with the first arc plate 71, a plurality of arc-shaped rails 81 are fixedly installed on the inner end wall of the cylinder body 7 and the first arc plate 71, a clamping block 82 slidingly connected with the arc-shaped rail 81 is fixedly installed on the straight rail 8, when the device is used, through the cooperation of the plurality of arc-shaped rails 81 and the clamping block 82, the cylinder body 7, the first arc plate 71 and the plurality of straight rails 8 are slidingly connected in the radial direction, and the plurality of second shaft seats 36 and the third shaft seats 53 are slidingly connected with the corresponding straight rails 8, which makes the device flexible and smooth when adjusting the outer diameter of the right end of the roller 11 by the extension and contraction of the plurality of hydraulic rods 35, and at the same time, through the firm connection of one of the straight rails 8 and the first arc plate 71, the axial connection of the adjustable cylinder skin 37 is stable during the rotation of the roller 11, through the firm connection of the first shaft seat 34 hinged on the circumferentially distributed support rod 33 and the corresponding straight rail 8, the axial connection of the adjustable cylinder skin 37 is stable during the rotation of the roller 11, avoiding the idling or deflection of the adjustable cylinder skin 37 during the rotation of the roller 11, which can effectively guarantee the stability of the device during operation.

[0065] Specifically, the working principle of the present application is as follows:

[0066] The pressure sensors acting on the second rollers 23 on the left and right sides of each idler roller assembly 2 are used to monitor the stress of the coal conveying belt 12 in real time when the coal is transported, when the conveying belt 12 deviates to one side, the pressure on the corresponding second roller 23 will suddenly increase, and the pressure on the second roller 23 on the other side will greatly decrease, through the detection of the pressure change by the left and right pressure sensors, the deviation direction of the conveying belt 12 is automatically determined, when the conveying belt 12 deviates to the left, the piston rods of the plurality of hydraulic rods 35 are controlled to extend outward, driving the outer diameter of the right side of the roller 11 to slightly increase, forcing the conveying belt 12 to deviate to the right for correction, when the conveying belt 12 deviates to the right, the piston rods of the plurality of hydraulic rods 35 are controlled to retract, driving the outer diameter of the right side of the roller 11 to slightly decrease, so that the outer diameter of the left side of the roller 11 is greater than that of the right end of the roller 11, forcing the conveying belt 12 to deviate to the left for correction, after the conveying belt 12 is corrected, the roller 11 returns to the state that the outer diameters of the left and right ends are consistent, the auxiliary support mechanism is arranged at the middle position of the roller 11, when the hydraulic rod 35 is used to adjust the outer diameter of the right side of the roller 11, the locking of the auxiliary rod 52 by the locking mechanism 600 needs to be released in advance, after the adjustment is completed, the locking of the auxiliary rod 52 by the locking mechanism 600 is restored, and the adjustable cylinder skin 37 is kept in a stable state after the outer diameter adjustment by the support of the auxiliary rod 52.

[0067] The above merely illustrates the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the technical scope disclosed by the present application and according to the technical solutions and the inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. An intelligent downhole belt conveyor comprising a frame (1), characterized in that: The front and rear ends of the rack (1) are rotatably installed with transversely arranged rollers (11), transmission sleeves are connected with the conveying belt (12) between the front and rear rollers (11), the rack (1) is fixedly installed with a servo motor (13) for driving the rotation of the roller (11), the rack (1) is installed with a plurality of uniformly distributed roller assemblies (2), and the roller assemblies (2) are supported below the load-carrying section of the conveying belt (12), the roller (11) comprises a rotating shaft (3) rotatably connected with the rack (1), and the rotating shaft (3) is fixedly installed with a first support (31) and a second support (32) on the left and right sides, respectively, a plurality of circumferentially distributed support rods (33) are fixedly installed on the first support (31), and a first shaft seat (34) is hinged to one end of the support rod (33) away from the rotating shaft (3), a plurality of circumferentially distributed hydraulic rods (35) are fixedly installed on the second support (32), and a second shaft seat (36) is hinged to one end of the piston rod of the hydraulic rod (35) away from the rotating shaft (3), a plurality of the hydraulic rods (35) are correspondingly arranged with a plurality of the support rods (33), an adjustable cylinder skin (37) is sleeved on the outer side of the first support (31) and the second support (32), and the adjustable cylinder skin (37) is connected with a plurality of the first shaft seats (34) and the second shaft seats (36), the conveying belt (12) is drivingly sleeved on the outer side of the adjustable cylinder skin (37), under the hydraulic drive, a plurality of the hydraulic rods (35) are synchronously adjusted by extension and contraction, so that the outer diameter of the right side of the roller (11) is adjusted when the conveying belt (12) is deflected, by changing the size ratio of the outer diameters of the left and right sides of the roller (11), the driving force of the left and right sides of the roller (11) is adjusted, and the automatic correction of the deflected conveying belt (12) is realized; The adjustable cylinder skin (37) comprises a cylinder body (7) with a C-shaped cross-section structure, one side of the cylinder body (7) is fixedly connected with a first arc plate (71), the other side of the cylinder body (7) is fixedly connected with a second arc plate (72) slidingly covering the outer side of the first arc plate (71), the cylinder body (7), the first arc plate (71) and the second arc plate (72) form a cylindrical structure, a through slot (73) is formed in the first arc plate (71), and a tension spring (74) is installed in the through slot (73) and elastically connected between the cylinder body (7) and the second arc plate (72), the cylinder body (7), the first arc plate (71) and the second arc plate (72) have elastic deformation ability; The first support (31) and the second support (32) are provided with an auxiliary support mechanism, and the auxiliary support mechanism comprises a plurality of horizontal rods (5) fixedly connected between the first support (31) and the second support (32), the plurality of horizontal rods (5) are uniformly distributed around the rotating shaft (3), one supporting rod (33) and one hydraulic rod (35) are arranged at the left and right ends of one horizontal rod (5) respectively, the horizontal rod (5) is hingedly provided with a shaft sleeve (51), an auxiliary rod (52) is slidably inserted into the shaft sleeve (51), one end of the auxiliary rod (52) away from the rotating shaft (3) is hingedly provided with a third shaft seat (53), the third shaft seat (53) is connected with an adjustable cylinder skin (37), and a locking mechanism is arranged in the shaft sleeve (51). The locking mechanism comprises a cavity (6) formed in the shaft sleeve (51) and sleeved outside the auxiliary rod (52), and a plurality of elastic rings (61) are fixedly arranged in the cavity (6), the elastic rings (61) are tightly clamped outside the auxiliary rod (52), an oil inlet (62) is fixedly arranged on the shaft sleeve (51), an oil inlet channel (63) is formed in the shaft sleeve (51) and communicated with the cavity (6), an oil outlet (65) is fixedly arranged on the shaft sleeve (51), and an oil outlet channel (66) is formed in the shaft sleeve (51) and communicated with the cavity (6), the oil inlet channel (63) and the oil outlet channel (66) are arranged at the two sides of the elastic ring (61) respectively, and when the hydraulic rod (35) is used to adjust the outer diameter of the right side of the roller (11), the locking of the auxiliary rod (52) by the locking mechanism needs to be released in advance.

2. An intelligent underground belt conveyor as claimed in claim 1, characterized in that: The roller assembly (2) comprises a roller frame (21) fixedly connected with the rack (1), a first roller (22) horizontally arranged is rotatably arranged at the middle position of the roller frame (21), second rollers (23) symmetrically arranged at the left and right sides of the first roller (22) are rotatably arranged on the roller frame (21), one end of the second roller (23) away from the first roller (22) is upwardly inclined, the first roller (22) and the second roller (23) are rotatably supported below the bearing section of the conveying belt (12), and a pressure sensor acting on the second rollers (23) on the left and right sides is fixedly arranged on the roller frame (21).

3. An intelligent underground belt conveyor as claimed in claim 1, wherein: An oil channel (4) is formed at the central axis position of the rotating shaft (3), a rotating connector (41) rotatably connected with the end of the rotating shaft (3) is fixedly arranged on the rack (1), the oil channel (4) is communicated with the rotating connector (41), and a pipe connector (42) in communication with the inside of the oil channel (4) is fixedly arranged on the cylindrical surface of the rotating shaft (3).

4. An intelligent underground belt conveyor as claimed in claim 1, wherein: The oil inlet channel (63) is provided in plurality, and the plurality of oil inlet channels (63) are distributed around the shaft sleeve (51), the first annular channel (64) is arranged around the shaft sleeve (51) and is in common communication with the plurality of oil inlet channels (63), the first annular channel (64) is in communication with the oil inlet interface (62), the oil outlet channel (66) is provided in plurality, and the plurality of oil outlet channels (66) are distributed around the shaft sleeve (51), the second annular channel (67) is arranged around the shaft sleeve (51) and is in common communication with the plurality of oil outlet channels (66), and the second annular channel (67) is in communication with the oil outlet interface (65).

5. An intelligent underground belt conveyor as claimed in claim 1, wherein: The oil inlet interface (62) and the oil outlet interface (65) on the plurality of shaft sleeves (51) are in series communication, the first shaft sleeve (51) is connected with the pipe joint (42) through the first electric control valve, and the pipe joint (42) is connected with the plurality of hydraulic rods (35) through the second electric control valve.

6. An intelligent underground belt conveyor as claimed in claim 5, characterized in that: The last shaft sleeve (51) is connected with the hydraulic sensor through the oil outlet interface (65).

7. An intelligent underground belt conveyor as claimed in claim 1, wherein: The first shaft seat (34), the second shaft seat (36) and the third shaft seat (53) on the same straight line are connected with the straight rail (8), the plurality of straight rails (8) are arranged corresponding to the plurality of cross rods (5), the first shaft seat (34) is firmly connected with the straight rail (8) through the rivet, the second shaft seat (36) and the third shaft seat (53) are slidingly connected with the straight rail (8), one of the straight rails (8) is fixedly connected with the first arc plate (71), the inner end wall of the cylinder (7) and the first arc plate (71) is fixedly installed with the plurality of arc-shaped rails (81) arranged around, and the straight rail (8) is fixedly installed with the clamping block (82) slidingly connected with the arc-shaped rail (81).

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