Mining belt conveyor

Abstract

The utility model discloses a mining belt conveyor, and belongs to the field of material conveying equipment. The mining belt conveyor comprises a conveyor support, a transmission device, supporting plates arranged at intervals, a lead screw moving assembly and a connecting plate installed on the lead screw moving assembly in a sliding mode. One end of the non-return belt is fixedly arranged on the connecting plate; the free end of the non-return belt is arranged between the rotating roller and the lower belt of the conveying belt; the position sensor comprises a first position sensor and a second position sensor and is fixed on the supporting plate by arranging a supporting rod; the controller is electrically connected with the conveying device and the lead screw moving assembly. The device has the beneficial effects that the position of the connecting plate is driven by the lead screw moving assembly, and then the position of the non-return belt is adjusted; and the baffle and the guide roller are combined, so that the free end of the non-return belt is limited to be close to the rotating roller, and the non-return belt can play a non-return role in time.

Description

Technical Field

[0001] The utility model relates to the field of material transportation equipment, in particular to a mine belt conveyor. Background Technique

[0002] The belt conveyor, also known as the belt-type conveyor, has the advantages of large conveying capacity, simple structure, convenient maintenance, and standardized components. It is used to convey rock materials or coal materials in the coal mine field. However, since it does not adopt the speed reducer drive mode, but directly uses the electric roller as the power matching system, when parking under load, due to gravity, it will reverse, causing the materials on the conveyor belt to fall, which is likely to cause dangerous accidents. Moreover, the instantaneous current is too large when starting again, shortening the service life of the electric roller.

[0003] In order to prevent the inclined belt conveyor from reversing or slipping when parking with load, a reverse stop or braking device is added according to specific conditions. The braking device is generally installed on the high-speed shaft of the speed reducer. When the belt conveyor is working normally, the brake drum is released. When the motor stops working, the brake drum is tightened (braked) to stop the belt. The existing reverse stops mainly include roller reverse stops and pawl reverse stops, which are generally installed on the driving wheel shaft of the conveyor belt and only allow the belt to rotate in one direction. The existing reverse stops are all complex in structure and high in price.

[0004] In addition, there is also a structure of adding a reverse stop belt in the belt conveyor. The lower end of the reverse stop belt is brought between the conveyor belt and the driving wheel. The reverse stop belt is tensioned so that the conveyor belt stops reversing, and the purpose of stopping the conveyor belt can be effectively achieved, such as a belt conveyor reverse stop disclosed in CN205274460U. However, when the belt conveyor needs to reverse during maintenance, the reverse stop belt affects the normal reverse rotation of the conveyor belt, bringing obstacles to the maintenance work. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a mine belt conveyor, which drives the position of the reverse stop belt to move by setting a screw rod moving component, avoiding the influence of the reverse stop belt on the reverse rotation of the conveyor belt during maintenance.

[0006] The technical solution provided by the utility model is as follows:

[0007] A mine belt conveyor, comprising:

[0008] A conveyor support;

[0009] A transmission device, including a driving motor, a gearbox and a rotating roller fixed on the conveyor support. The rotating roller is connected to both ends of the conveyor support. A conveyor belt is sleeved on the rotating roller. The driving motor operates to drive the conveyor belt to rotate. Bearing seats are arranged at both ends of the rotating roller;

[0010] Also included are:

[0011] The support plates arranged at intervals are fixedly arranged on the upper surface of the end of the conveyor support near the rotating roller and are located inside the conveyor belt;

[0012] The screw rod moving assembly is fixedly installed on the upper surface of the support plate;

[0013] The connecting plate is slidably installed on the screw rod moving assembly; the screw rod moving assembly pushes the connecting plate to move;

[0014] The reverse stop belt has one end fixedly arranged on the connecting plate; the other end is a free end, and the free end of the reverse stop belt is arranged between the rotating roller and the lower belt of the conveyor belt;

[0015] The position sensors, including the first position sensor and the second position sensor, are fixed on the support plate by arranging support rods;

[0016] The controller is electrically connected to the conveying device and the screw rod moving assembly respectively.

[0017] Furthermore, a rotating roller support is fixedly arranged on the conveyor support.

[0018] Furthermore, the output end of the driving motor is connected to the first runner, the gearbox is connected to the second runner, and a power conveyor belt is sleeved on the first runner and the second runner; the rotating roller includes a driving roller and a driven roller, and a conveyor belt is sleeved on the driving roller and the driven roller; the power of the driving motor is transmitted to the driving roller, thereby driving the conveyor belt to move.

[0019] Furthermore, the screw rod moving assembly includes a servo motor, a reducer, a first bearing bracket, a second bearing bracket, a screw rod and a screw rod sleeve; the servo motor, the first bearing bracket and the second bearing bracket are respectively fixedly arranged on the top of the support plate, the reducer is fixedly connected to one end of the screw rod, the screw rod is rotatably connected between the first bearing bracket and the second bearing bracket, the screw rod sleeve is threadedly connected to the circumferential surface of the screw rod, and the screw rod sleeve is connected to the connecting plate by screws; a coupling is arranged on the reducer; slide rails are symmetrically arranged on both sides between the first bearing bracket and the second bearing bracket, and sliders matched with the slide rails are fixedly arranged on the connecting plate.

[0020] Furthermore, the support plate includes a first support plate, a second support plate and a third support plate. The first support plate is used to support the servo motor, the second support plate is used to support the first bearing bracket, and the third support plate is used to support the second bearing bracket.

[0021] Furthermore, a baffle is arranged between the conveyor support and the rotating roller near the screw rod moving assembly, and the front and rear sides of the baffle are fixedly connected to the conveyor support; when the rotating roller rotates clockwise, the bending allowance left in the middle of the reverse stop belt is arranged in an S-shaped bend and the middle of the reverse stop belt abuts against the baffle.

[0022] Further, a guiding roller is fixedly arranged at the end of the conveyor support near the lead screw moving assembly; when the rotating roller rotates counterclockwise, the bottom surface of the middle part of the backstop belt abuts against the guiding roller.

[0023] Further, a pressing plate is arranged at the fixed end of the backstop belt, and the fixed end of the backstop belt is fixedly arranged between the pressing plate and the connecting plate by screws.

[0024] Further, it further includes: a plurality of idler supports fixedly arranged on the conveyor support, with idlers installed on the idler supports, and the idlers are in contact with the conveyor belt.

[0025] Further, it further includes: a receiving hopper fixedly arranged above one end of the conveyor support far from the lead screw moving assembly, with the bottom close to the conveyor belt, and the side surface of the receiving hopper is inclined to buffer the impact of the falling material on the belt; a receiving hopper support, with the bottom fixedly connected to both sides of the conveyor support and the upper part fixedly connected to the receiving hopper;

[0026] The utility model has the following beneficial effects:

[0027] (1). The position of the connecting plate is driven by the lead screw moving assembly, thereby adjusting the position of the backstop belt to ensure the operation of the three states of the mine belt conveyor in normal operation, emergency backstop and maintenance states;

[0028] (2). The combined setting of the baffle and the guiding roller limits the position of the free end of the backstop belt close to the rotating roller, ensuring that the backstop belt can play the backstop role in time during emergency braking. Description of the Drawings

[0029] Figure 1 is a three-dimensional view of the mine belt conveyor;

[0030] Figure 2 is Figure 1 the partial enlarged view at A in

[0031] Figure 3 is the partial enlarged view of the rear end of the mine belt conveyor;

[0032] Figure 4 is the side view of the rear end of the mine belt conveyor;

[0033] Figure 5 is the three-dimensional view of the driven roller and its supporting structure at the front end of the mine belt conveyor;

[0034] Figure 6 is the partial enlarged view of the rear end of the mine belt conveyor in the backstop state;

[0035] Figure 7 is Figure 6 the partial enlarged view at E in

[0036] Figure 8 Top view of the rear end of a mine belt conveyor in the check valve state;

[0037] Figure 9 Is Figure 8 Cross-sectional view taken along line B-B in

[0038] Figure 10 Cross-sectional view of the rear end of a mine belt conveyor in normal operation;

[0039] Figure 11 Partial enlarged view of the rear end of a mine belt conveyor in reverse during maintenance;

[0040] Figure 12 Is Figure 11 Partial enlarged view at position C in

[0041] Figure 13 Cross-sectional view of the rear end of a mine belt conveyor in reverse during maintenance;

[0042] Figure 14 Stereogram of the combined state of the idler support and the idler;

[0043] Figure 15 Front view of the combined state of the idler support and the idler;

[0044] Figure 16 Stereogram of the baffle;

[0045] Figure 17 Stereogram of the combined state of the receiving hopper support and the receiving hopper;

[0046] Figure 18 Stereogram of the combined state of the screw moving assembly, the connecting plate, the pressing plate and the check belt;

[0047] Figure 19 Stereogram of the screw moving assembly;

[0048] Figure 20 Top view of the screw moving assembly;

[0049] Figure 21 Is Figure 20 Cross-sectional view taken along line D-D in

[0050] Figure 22 Stereogram of the combined state of the connecting plate and the slider;

[0051] Figure 23 Front view of the combined state of the connecting plate and the slider.

[0052] Among them, 100 is the conveyor support; 200 is the driving motor; 300 is the gearbox; 400 is the rotating roller; 401 is the driving roller; 402 is the driven roller; 500 is the conveyor belt; 600 is the bearing seat; 700 is the support plate; 701 is the first support plate; 702 is the second support plate; 703 is the third support plate; 800 is the connecting plate; 900 is the backstop belt; 1000 is the position sensor; 1001 is the first position sensor; 1002 is the second position sensor; 1100 is the support rod; 1200 is the rotating roller support; 1300 is the first runner; 1400 is the second runner; 1500 is the power conveyor belt; 1600 is the servo motor; 1700 is the reducer; 1800 is the first bearing bracket; 1900 is the second bearing bracket; 2000 is the lead screw; 2100 is the lead screw sleeve; 2200 is the coupling; 2300 is the slide rail; 2400 is the slide rail seat; 2500 is the slider; 2600 is the baffle; 2700 is the guide roller; 2800 is the pressing plate; 2900 is the idler support; 3000 is the idler; 3100 is the receiving hopper; 3200 is the receiving hopper support; 3300 is the protective housing. Detailed implementation manners

[0053] To make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will combine the Figures 1 to 4 accompanying drawings and specific embodiments to clearly and completely describe the technical solutions of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0054] An embodiment of the present utility model provides a mine belt conveyor, as Figures 1 to 8 shown, including a conveyor support 100, a transmission device, support plates 700 arranged at intervals, a lead screw moving assembly, a connecting plate 800, a backstop belt 900, a position sensor 1000 and a controller.

[0055] The conveyor support 100 is used to support the upper structure of the mine belt conveyor, specifically a steel structure frame.

[0056] The transmission device includes a driving motor 200, a gearbox 300 and a rotating roller 400 fixed on the conveyor support 100. The rotating roller 400 is connected to both ends of the conveyor support 100. A conveyor belt 500 is sleeved on the rotating roller 400. The operation of the driving motor 200 drives the conveyor belt 500 to rotate. Bearing seats 600 are arranged at both ends of the rotating roller 400.

[0057] The spaced support plates 700 are fixedly arranged on the upper surface of the end of the conveyor support 100 close to the rotating roller 400 and are located inside the conveyor belt 500.

[0058] The screw rod moving assembly is fixedly installed on the upper surface of the support plate 700, and the screw rod moving assembly drives the connecting plate 800 to move.

[0059] The connecting plate 800 is slidably installed on the screw rod moving assembly, and the screw rod moving assembly pushes the connecting plate 800 to move.

[0060] One end of the backstop belt 900 is fixedly arranged on the connecting plate 800, and the other end is a free end. The free end of the backstop belt 900 is arranged between the rotating roller 400 and the lower belt of the conveyor belt 500.

[0061] The position sensor 1000, including a first position sensor 1001 and a second position sensor 1002, is fixed on the support plate 700 by arranging a support rod 1100. After the connecting plate 800 touches the position sensor 1000, the controller controls to stop the movement of the connecting plate 800, realizing the automatic control of the position of the connecting plate 800.

[0062] The controller is electrically connected to the conveying device and the screw rod moving assembly respectively.

[0063] During the working process of the mine belt conveyor according to the embodiment of the present utility model, there are the following three states:

[0064] State 1: The mine belt conveyor operates normally. As Figure 10 shown, the rotating roller 400 and the conveyor belt 500 rotate clockwise. The free end of the backstop belt 900 is located on one side of the bottom end of the rotating roller 400, and there is a bending allowance left in the middle of the backstop belt 900. The end of the free end of the backstop belt 900 contacts the lower belt of the conveyor belt 500, and the middle of the backstop belt 900 abuts against the inside of the baffle 2600, preventing the bent part in the middle of the backstop belt 900 from touching the rotating roller 400 and affecting the normal operation of the mine belt conveyor.

[0065] State 2: When the mine belt conveyor is powered off or fails, backstopping is required. As Figure 9As shown, the free end of the check belt 900 is wound around the outside of the bottom end of the rotating roller 400 and the check belt 900 is located between the rotating roller 400 and the conveyor belt 500. Through the action of friction, the reverse rotation of the rotating roller 400 and the conveyor belt 500 is stopped, playing the role of braking and stopping.

[0066] State 3: During the maintenance of the mining belt conveyor, the conveyor belt 500 rotates counterclockwise. Figures 11 to 13 As shown, in order to prevent the check belt 900 from being drawn into the rotating roller 400, the connecting plate 800 is moved backward before the conveyor belt 500 rotates counterclockwise, thereby driving the check belt 900 to move backward, and then the transmission device is turned on. Since the free end of the check belt 900 is away from the rotating roller 400 at this time, the check belt 900 does not affect the counterclockwise rotation of the conveyor belt 500, thereby ensuring the smooth progress of the maintenance process.

[0067] The position of the connecting plate 800 is driven by the screw moving assembly, and then the position of the check belt 900 is adjusted to ensure the operation of the mining belt conveyor in three states: normal operation, emergency check and maintenance. After the maintenance is completed, the connecting plate 800 moves and drives the free end of the check belt 900 close to the rotating roller 400, and the conveyor belt 500 rotates clockwise and is in a normal working state. When the mining belt conveyor is powered off or fails, the free end of the check belt 900 is rolled between the rotating roller 400 and the conveyor belt 500, and the rotating roller 400 is forced to stop running through friction.

[0068] Specifically, a rotating roller bracket 1200 is fixed on the conveyor bracket 100 by bolts to support the bearing seat 600 .

[0069] Specifically, the output end of the driving motor 200 is connected to the first rotating wheel 1300, the gearbox 300 is connected to the second rotating wheel 1400, and the first rotating wheel 1300 and the second rotating wheel 1400 are sleeved with a power transmission belt 1500; the rotating roller 400 includes an active roller 401 and a driven roller 402, and the active roller 401 and the driven roller 402 are sleeved with a conveyor belt 500; the power of the driving motor 200 is transmitted to the active roller 401, thereby driving the conveyor belt 500 to move. A protective shell 3300 is set outside the first rotating wheel 1300, the second rotating wheel 1400 and the power transmission belt 1500 to prevent foreign objects from affecting the normal operation of the transmission device.

[0070] Specifically, Figures 19 to 21As shown in the figure, the lead screw moving assembly includes a servo motor 1600, a speed reducer 1700, a first bearing bracket 1800, a second bearing bracket 1900, a lead screw 2000 and a lead screw sleeve 2100. A coupling 2200 is provided on the speed reducer 1700. The coupling 2200 is used to connect the output shafts of the speed reducer 1700 and the servo motor 1600, and transmit the power of the servo motor 1600 to the lead screw 2000. The servo motor 1600, the first bearing bracket 1800 and the second bearing bracket 1900 are respectively fixedly arranged on the top of the support plate 700. The speed reducer 1700 is fixedly connected to one end of the lead screw 2000. The lead screw 2000 is rotatably connected between the first bearing bracket 1800 and the second bearing bracket 1900. The lead screw sleeve 2100 is threadedly connected to the circumferential surface of the lead screw 2000. The lead screw sleeve 2100 is connected to the connecting plate 800 by screws. Slide rail seats 2400 are symmetrically arranged on both sides between the first bearing bracket 1800 and the second bearing bracket 1900. Slide rails 2300 are fixedly arranged on the slide rail seats 2400. Sliders 2500 that are matched with the slide rails 2300 are fixedly arranged on the connecting plate 800. Specifically, the sliders 2500 are fixedly connected to the connecting plate 800 by screws, as Figure 22 and Figure 23 shown. In this embodiment, two sliders 2500 are respectively arranged on the left and right of the connecting plate 800. The sliders 2500 move on the slide rails 2300 to realize the guiding of the connecting plate 800 in the lead screw moving assembly.

[0071] Specifically, as Figure 6 shown, the support plate 700 includes a first support plate 701, a second support plate 702 and a third support plate 703. The first support plate 701 is used to support the servo motor 1600. The second support plate 702 is used to support the first bearing bracket 1800. The third support plate 703 is used to support the second bearing bracket 1900. The first position sensor 1001 is fixed on the third support plate 703 through a support rod 1100. The second position sensor 1002 is fixed on the second support plate 702 through a support rod 1100.

[0072] A baffle 2600 is arranged between the conveyor support 100 and the rotating roller 400 close to the lead screw moving assembly. The structure of the baffle is as Figure 16 shown. The front and rear sides of the baffle 2600 are fixedly connected to the conveyor support 100. When the rotating roller 400 rotates clockwise, the bending allowance left in the middle of the backstop belt 900 is arranged in an S-shaped bend, and the middle of the backstop belt 900 abuts against the inner side of the baffle 2600, as Figure 10 shown, to prevent the middle bent part of the backstop belt 900 from touching the rotating roller 400 and affecting the normal operation of the mine belt conveyor.

[0073] Specifically, there is an open space between the third support plate 703 and the baffle 2600, providing a bending space for the bending allowance left in the middle of the non-return belt 900, as Figure 10 shown.

[0074] At the end of the conveyor support 100 near the lead screw moving assembly, a guide roller 2700 is fixedly arranged. Threads are provided at both ends of the guide roller 2700, and the guide roller 2700 is fixed on the conveyor support 100 by setting nuts. When the rotating roller 400 rotates counterclockwise, the bottom surface of the middle part of the non-return belt 900 abuts against the guide roller 2700. When the rotating roller 400 rotates clockwise, the setting of the guide roller 2700 can prevent the free end of the non-return belt 900 from moving away from the rotating roller 400, enabling the non-return belt 900 to play a non-return role in a timely manner.

[0075] The combined setting of the baffle 2600 and the guide roller 2700 limits the position of the free end of the non-return belt 900 to be close to the rotating roller 400, ensuring that the non-return belt 900 can play a non-return role in a timely manner during an emergency brake.

[0076] To enhance the fixed connection between the non-return belt 900 and the connecting plate 800, a pressing plate 2800 is provided at the fixed end of the non-return belt 900, and the fixed end of the non-return belt 900 is fixedly arranged between the pressing plate 2800 and the connecting plate 800 by screws, as Figure 18 shown. The detachable structural design of the non-return belt 900 facilitates the regular replacement of the non-return belt 900, ensuring the emergency braking effect.

[0077] A number of idler supports 2900 are fixedly arranged on the conveyor support 100, and idlers 3000 are installed on the idler supports 2900, as Figure 14 and Figure 15 shown. The idlers 3000 are in contact with the conveyor belt 500, and the idlers 3000 are used to support the conveyor belt 500.

[0078] It also includes a receiving hopper 3100 and a receiving hopper support 3200 fixedly arranged above one end of the conveyor support 100 away from the lead screw moving assembly, as Figure 17 shown. The bottom of the receiving hopper support 3200 is fixedly connected to both sides of the conveyor support 100, the upper part of the receiving hopper support 3200 is fixedly connected to the receiving hopper 3100, and the bottom of the receiving hopper 3100 is close to the conveyor belt 500. Further, the side surface of the receiving hopper 3100 is inclined to buffer the impact of the falling material on the belt.

[0079] Working principle: The controller controls the operation of the screw moving assembly to realize the movement of the connection plate 800, thereby controlling the movement of the fixed end of the check belt 900. The connection plate 800 slides between the first position sensor 1001 and the second position sensor 1002 to ensure that the free end of the check belt 900 is in the space between the baffle 2600 and the guide roller 2700, so that the check belt 900 can play a check role. During use, when the front end surface of the connecting plate 800 touches the first position sensor 1001, the controller controls the screw moving assembly to stop running, and the free end of the check belt 900 approaches the rotating roller 400; when the mining belt conveyor is operating normally, the rotating roller 400 and the conveyor belt 500 rotate clockwise, the free end of the check belt 900 is located on one side of the bottom end of the rotating roller 400, and there is a bending margin in the middle of the check belt 900, the free end of the check belt 900 contacts the lower belt of the conveyor belt 500, and the middle of the check belt 900 abuts against the baffle 2600. On the inside, the middle curved part of the check belt 900 is prevented from touching the rotating roller 400 and affecting the normal operation of the mining belt conveyor; when the mining belt conveyor is powered off or fails, the rotating roller 400 and the conveyor belt 500 rotate counterclockwise under the gravity of the material on the conveyor belt 500, and the free end of the check belt 900 is wrapped around the outside of the bottom end of the rotating roller 400 and the check belt 900 is located between the rotating roller 400 and the conveyor belt 500. Through the action of friction, the reverse rotation of the rotating roller 400 and the conveyor belt 500 is stopped, which plays a role of braking and stopping. When the conveyor belt 500 needs to be rotated counterclockwise during the maintenance of the mining belt conveyor, in order to prevent the check belt 900 from being drawn into the rotating roller 400, the following procedure is performed during maintenance: the controller controls the operation of the screw moving assembly, and when the rear end face of the connecting plate 800 touches the second position sensor 1002, the controller controls the screw moving assembly to stop operating. At this time, the connecting plate 800 moves backward, thereby driving the check belt 900 to move backward, preventing the free end of the check belt 900 from being drawn into the rotating roller 400.

[0080] According to actual conditions, the support plate 700, the check belt 900 and the corresponding screw moving assembly are installed on the end of the conveyor support 100 close to the active roller 401, or on the end of the conveyor support 100 close to the driven roller 402. The drawings in the specification illustrate the installation on the end of the conveyor support 100 close to the driven roller 402.

[0081] Finally, it should be noted that the above-described embodiments are only specific implementation manners of the present utility model, used to illustrate the technical solutions of the present utility model, rather than limiting it. The protection scope of the present utility model is not limited thereto. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present utility model can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model. All should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A mining belt conveyor, comprising: Conveyor support (100); The transmission device comprises a driving motor (200) fixed on a conveyor support (100), a gearbox (300) and a rotating roller (400), wherein the rotating roller (400) is connected to both ends of the conveyor support (100), a conveyor belt (500) is sleeved on the rotating roller (400), and the driving motor (200) drives the conveyor belt (500) to rotate; It is characterized by further comprising: Support plates (700) are arranged at intervals and fixedly arranged on the upper surface of the end of the conveyor support (100) close to the rotating roller (400) and located inside the conveyor belt (500); A screw rod moving assembly is fixedly mounted on the upper surface of the support plate (700); The connecting plate (800) is slidably mounted on the screw moving assembly; the screw moving assembly pushes the connecting plate (800) to move; A check belt (900) has one end fixedly disposed on the connecting plate (800) and the other end being a free end, wherein the free end of the check belt (900) is disposed between the rotating roller (400) and the lower belt of the conveyor belt (500); The position sensor (1000) comprises a first position sensor (1001) and a second position sensor (1002), which are fixed on the support plate (700) by arranging a support rod (1100); A baffle (2600) is provided between the conveyor support (100) and the rotating roller (400) close to the screw moving assembly, and the front and rear sides of the baffle (2600) are fixedly connected to the conveyor support (100); When the rotating roller (400) rotates clockwise, the bending margin left in the middle of the check belt (900) is arranged in an S-shaped bending shape, and the middle of the check belt (900) abuts against the baffle (2600), and the free end of the check belt (900) contacts the lower belt of the conveyor belt (500); A guide roller (2700) is fixedly provided at the end of the conveyor support (100) close to the screw moving assembly; When the rotating roller (400) rotates counterclockwise, the bottom surface of the middle portion of the backstop belt (900) abuts against the guide roller (2700); The controller is electrically connected to the transmission device and the lead screw moving assembly respectively.

2. The mining belt conveyor according to claim 1, characterized in that: A rotating roller bracket (1200) is fixedly arranged on the conveyor bracket (100).

3. The mining belt conveyor according to claim 1, characterized in that: Bearing seats (600) are provided at both ends of the rotating roller (400); The output end of the driving motor (200) is connected to the first rotating wheel (1300), the gearbox (300) is connected to the second rotating wheel (1400), and a power transmission belt (1500) is sleeved on the first rotating wheel (1300) and the second rotating wheel (1400); The rotating roller (400) comprises a driving roller (401) and a driven roller (402), and a conveyor belt (500) is sleeved on the driving roller (401) and the driven roller (402); The power of the driving motor (200) is transmitted to the active roller (401), thereby driving the conveyor belt (500) to move.

4. The mining belt conveyor according to claim 1, characterized in that: The screw moving assembly comprises a servo motor (1600), a reducer (1700), a first bearing frame (1800), a second bearing frame (1900), a screw (2000) and a screw sleeve (2100); The servo motor (1600), the first bearing frame (1800) and the second bearing frame (1900) are respectively fixedly arranged on the top of the support plate (700), the reducer (1700) is fixedly connected to one end of the screw rod (2000), the screw rod (2000) is rotatably connected between the first bearing frame (1800) and the second bearing frame (1900), the screw rod sleeve (2100) is threadedly connected to the circumferential surface of the screw rod (2000), and the screw rod sleeve (2100) is connected to the connecting plate (800) by screws; The reducer (1700) is provided with a coupling (2200); A slide rail seat (2400) is symmetrically arranged on both sides between the first bearing frame (1800) and the second bearing frame (1900), a slide rail (2300) is fixedly arranged on the slide rail seat (2400), and a slider (2500) matched with the slide rail (2300) is fixedly arranged on the connecting plate (800).

5. The mining belt conveyor according to claim 4, characterized in that: Specifically, the support plate (700) includes a first support plate (701), a second support plate (702) and a third support plate (703), the first support plate (701) is used to support the servo motor (1600), the second support plate (702) is used to support the first bearing frame (1800), and the third support plate (703) is used to support the second bearing frame (1900).

6. The mining belt conveyor according to claim 1, characterized in that: A pressing plate (2800) is provided at the fixed end of the check belt (900), and the fixed end of the check belt (900) is fixed between the pressing plate (2800) and the connecting plate (800) by means of screws.

7. The mining belt conveyor according to claim 1, characterized in that: Also includes: A plurality of roller supports (2900) are fixedly arranged on a conveyor support (100), rollers (3000) are installed on the roller supports (2900), and the rollers (3000) are in contact with a conveyor belt (500).

8. The mining belt conveyor according to claim 1, characterized in that: Also includes: The receiving hopper (3100) is fixedly arranged above the end of the conveyor support (100) away from the screw rod moving assembly, and the bottom is close to the conveyor belt (500).

9. The mining belt conveyor according to claim 8, characterized in that: The side of the receiving hopper (3100) is inclined.

10. The mining belt conveyor according to claim 9, characterized in that: Also includes: The receiving hopper support (3200) has its bottom fixedly connected to both sides of the conveyor support (100) and its top fixedly connected to the receiving hopper (3100).

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