Self-moving tail for belt conveyor

Abstract

The utility model relates to the technical field of self-moving machine tails, in particular to a self-moving machine tail for a belt conveyor, which comprises a machine frame, two guide rails and an electric driving execution system, the electric driving execution system comprises a bottom lifting electric cylinder, a pushing electric cylinder, a leveling electric cylinder and an explosion-proof electric cabinet, and the explosion-proof electric cabinet controls the pushing electric cylinder to push the machine frame to advance or retreat; the explosion-proof electric cabinet controls the bottom lifting electric cylinder to enable the guide rail and the rack to lift relatively; the explosion-proof electric control box controls the leveling electric cylinder to adjust the transverse movement of the rack, so that the full-electric driving execution system is adopted to achieve lifting, front-back movement and transverse movement of the rack, the response speed of the rack is effectively increased, the levelness of the rack can be adjusted, and the problems of liquid leakage, oil seal replacement and the like caused by a hydraulic system do not need to be considered; and the low-cost maintenance effect of reducing maintenance or not needing maintenance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of self - moving machine tails, and particularly to a self - moving machine tail for a belt conveyor. Background Art

[0002] The self - moving machine tail for a belt conveyor is the main transportation equipment in the coal mine heading face, and is also a mobile equipment used in supporting the fully - mechanized coal mining and heading faces of coal mines with belt conveyors and transfer conveyors. It is installed between the head of the transfer conveyor and the tail of the belt conveyor, mainly to complete the coordination of the advancement of the transfer conveyor and the movement of the belt conveyor tail during the advancement of the working face, receive materials from the transfer conveyor, and transfer them into the belt system.

[0003] Among them, the existing self - moving machine tails for belt conveyors usually use high - pressure emulsion as power, with the hydraulic system pump station as the power unit, and control the front - back movement (forward or backward) and lifting of the frame of the self - moving machine tail through the hydraulic system. For example, a self - moving machine tail for a belt conveyor disclosed in the patent publication number CN215158116 U realizes the front - back movement and lifting of its frame through a hydraulic pushing device and a hydraulic supporting device respectively, and both the hydraulic pushing device and the hydraulic supporting device are controlled by the hydraulic system. However, controlling the front - back and lifting of the frame through the hydraulic system has the following defects:

[0004] 1. The distance from the oil circuit of the hydraulic pump station to the hydraulic pushing device and the hydraulic supporting device is far, the pressure drop of the high - pressure oil is large, the resistance of the hydraulic system is high, the efficiency is low, and the reliability is low;

[0005] 2. Components such as hydraulic pumps and valves are easily damaged and affected by aging, resulting in low reliability of the hydraulic system, frequent maintenance, and the need for regular maintenance and replacement, which affects the advancement efficiency of the working face;

[0006] 3. The hydraulic system has problems such as liquid leakage and seepage, causing environmental damage and affecting the geological environment;

[0007] 4. The hydraulic oil circuit is long, resulting in slow reaction speeds of the pushing device and the hydraulic supporting device, and slow response speed of the frame;

[0008] In addition, the above - mentioned existing self - moving machine tails for belt conveyors cannot realize the overall lateral movement of the frame, so the frame cannot be adjusted for deviation. Summary of the Utility Model

[0009] One of the purposes of the utility model is to provide a self - moving machine tail for a belt conveyor, which uses a fully - electric drive execution system to realize the lifting, front - back movement and lateral movement of the frame. It not only effectively improves the response speed of the frame, but also can adjust the levelness of the frame, and there is no need to consider problems such as liquid leakage and oil seal replacement caused by the hydraulic system, achieving the effect of low - cost maintenance with less or no maintenance.

[0010] To achieve the above object, the present utility model provides a self - moving tail for a belt conveyor, which includes a frame, a caster assembly, two guide rails, a mounting seat and an electric drive execution system. The electric drive execution system includes a bottom - lifting electric cylinder, a pushing electric cylinder, a leveling electric cylinder and an explosion - proof electric control box. The bottom - lifting electric cylinders are respectively fixed on the opposite sides of the frame. The telescopic end of the bottom - lifting electric cylinder is drivingly connected to the caster assembly. The caster assembly can move the frame along the guide rail, and the caster assembly can drive the guide rail and the frame to move relatively up and down under the drive of the bottom - lifting electric cylinder. The pushing electric cylinders are also respectively arranged on the opposite sides of the frame. The telescopic ends of the two pushing electric cylinders are respectively connected to the two guide rails, and are used to drive the frame to drive the caster assembly to move along the guide rail. The leveling electric cylinder is installed on the mounting seat. The mounting seat is located at the bottom of the frame. The telescopic end of the leveling electric cylinder is drivingly connected to a sliding seat. The sliding seat is fixedly connected to the frame. Two chutes are arranged along the longitudinal direction of the frame on the mounting seat. The two ends of the sliding seat are respectively slidably arranged in the chutes along the transverse direction of the frame, so that the frame can move in the transverse direction relative to the mounting seat, and the mounting seat can rise and fall synchronously with the frame. The explosion - proof electric control box is arranged on the frame. The explosion - proof electric control box is used to control the synchronous or independent lifting of the telescopic ends of the bottom - lifting electric cylinders. The explosion - proof electric control box is also used to control the synchronous pushing of the pushing electric cylinders to move the frame forward or backward. The explosion - proof electric control box is also used to control the leveling electric cylinder to adjust the transverse movement of the frame.

[0011] Further, the self - moving tail for a belt conveyor of the present utility model further includes a remote controller and a receiver. The receiver is arranged on the explosion - proof electric control box and is electrically connected to the explosion - proof electric control box. The remote controller is communicatively connected to the explosion - proof electric control box. The receiver is used to receive the remote control signal of the remote controller. The explosion - proof electric control box controls the working states of the bottom - lifting electric cylinder, the pushing electric cylinder and the leveling electric cylinder according to the remote control signal received by the receiver.

[0012] Further, the caster assembly includes two casters and two track clamping plates. One end of the two casters is rotatably connected to one track clamping plate, and the other end of the two casters is rotatably connected to the other track clamping plate. Guide grooves are respectively opened on the opposite sides of the guide rail. The guide grooves extend along the guide rail. The bottom parts of the two track clamping plates can be respectively clamped in the two guide grooves.

[0013] Further, the self - moving tail for belt conveyor of the present utility model further includes a first fixing block and a second fixing block. The first fixing block is fixedly connected to the frame. The pushing electric cylinder is hinged to the first fixing block, and the hinge axis between the pushing electric cylinder and the first fixing block is horizontally perpendicular to the guide rail. The second fixing block is fixedly connected to the guide rail, and the telescopic end of the pushing electric cylinder is hinged to the second fixing block. The hinge axis between the pushing electric cylinder and the second fixing block is horizontally perpendicular to the guide rail.

[0014] Further, a sound and light alarm controlled by the flame - proof electric control box is arranged on the frame. The sound and light alarm is used to detect whether the working states of the bottom - lifting electric cylinder, the pushing electric cylinder, and the leveling electric cylinder are normal.

[0015] Further, each of the guide rails corresponds to a plurality of the bottom - lifting electric cylinders.

[0016] Further, the frame is formed by connecting a plurality of frame bodies end to end.

[0017] Further, two connecting components are arranged on the mounting seat at intervals along the transverse direction of the frame. The leveling electric cylinder is arranged between the two connecting components. The connecting component includes two connecting blocks which are arranged at intervals along the longitudinal direction of the frame. Sliding grooves are formed on the mutually facing side surfaces of the two connecting blocks. The leveling electric cylinder is a two - way electric cylinder. Both telescopic ends of the two - way electric cylinder are connected with the sliding seats. The two ends of one sliding seat are respectively slidably connected with the sliding grooves of the two connecting blocks of one connecting component, and the two ends of the other sliding seat are respectively slidably connected with the sliding grooves of the two connecting blocks of the other connecting component.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. The present utility model adopts a fully electric - driven execution system to realize the lifting, forward - backward movement and lateral movement of the frame. Compared with the hydraulic system for controlling the lifting, forward - backward movement of the frame, the present utility model effectively improves the response speed of the frame, and there is no need to consider problems such as liquid leakage and oil seal replacement caused by the hydraulic system, achieving the effect of low - cost maintenance with less or no maintenance.

[0020] 2. During the use process, the telescopic ends of each bottom - lifting electric cylinder can be controlled to lift synchronously or independently through the flame - proof electric control box, so as to adjust the levelness of the frame. Specifically, when there is no height difference between the two guide rails supported on the ground, the telescopic ends of each bottom - lifting electric cylinder can be controlled to lift synchronously through the flame - proof electric control box. When there is a height difference between the two guide rails supported on the ground due to uneven ground, the lifting stroke of the telescopic ends of each bottom - lifting electric cylinder can be independently controlled. In this way, the levelness of the frame can be adjusted to a certain extent, and the adaptability effect of the frame can be improved.

[0021] 3. The self - moving tail of the belt conveyor of the present utility model can not only control the front - back and lifting of the frame, but also control the lateral movement of the frame, so as to realize the deviation - adjusting action of the frame and improve the adaptive effect of the frame.

[0022] 4. By using the flame - proof electric control box to control the bottom - lifting electric cylinder, the pushing electric cylinder and the leveling electric cylinder, the self - moving tail of the belt conveyor of the present utility model can operate safely and reliably in industrial sites full of explosive gases or dust, improving the safety performance of the self - moving tail of the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural view of the self - moving tail of the belt conveyor of the present utility model;

[0024] Figure 2 is Figure 1 an enlarged structural view of part A in

[0025] Figure 3 is Figure 1 an enlarged structural view of part B in

[0026] Figure 4 is a top view of the self - moving tail of the belt conveyor of the present utility model;

[0027] Figure 5 is Figure 4 an enlarged structural view of part C in

[0028] Figure 6 is a left view of the self - moving tail of the belt conveyor of the present utility model;

[0029] Figure 7 is a schematic structural view of the installation seat, the leveling electric cylinder and the sliding seat connection involved in the embodiment;

[0030] Figure 8 is a schematic structural view of the installation seat, the sliding seat and the frame connection involved in the embodiment;

[0031] Figure 9 is a schematic structural view of the pushing electric cylinder involved in the embodiment;

[0032] Figure 10 is a schematic structural view of the bottom - lifting electric cylinder involved in the embodiment;

[0033] Figure 11 is a schematic structural view of the leveling electric cylinder involved in the embodiment;

[0034] Figure 12 is a schematic structural view of the flame - proof electric control box involved in the embodiment.

[0035] Reference numerals in each drawing:

[0036] 1. Frame; 2. Mounting base; 20. Connecting block; 201. Chute; 3. Guide rail; 30. Guide groove; 4. Bottom-lifting electric cylinder; 40. Caster assembly; 401. Caster; 402. Rail clamping plate; 5. Pushing electric cylinder; 50. First fixing block; 51. Second fixing block; 52. Hinge shaft; 6. Leveling electric cylinder; 60. Sliding seat; 7. Flameproof electric control box; 8. Receiver. Detailed implementation manners

[0037] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "width", "upper", "lower", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0041] Please refer to Figure 1 - Figure 12, the present utility model provides a self - moving tail for a belt conveyor, which includes a frame 1, a caster assembly 40, two guide rails 3 and an electric drive execution system. The electric drive execution system includes a bottom - lifting electric cylinder 4, a pushing electric cylinder 5, a leveling electric cylinder 6 and an explosion - proof electric control box 7. The bottom - lifting electric cylinders 4 are respectively fixed on the opposite sides of the frame 1. The telescopic end of the bottom - lifting electric cylinder 4 is drivingly connected to the caster assembly 40. The caster assembly 40 can move the frame 1 along the guide rail 3, and the caster assembly 40 can relatively lift the guide rail 3 and the frame 1 under the drive of the bottom - lifting electric cylinder 4. The projection of the frame 1 on the ground is located between the two guide rails 3. Each guide rail 3 corresponds to multiple bottom - lifting electric cylinders 4. Exemplarily, there are six bottom - lifting electric cylinders 4, and each guide rail 3 corresponds to 3 bottom - lifting electric cylinders 4. Specifically, the caster assembly 40 includes two casters 401 and two track clamping plates 402. One end of the two casters 401 is rotatably connected to one track clamping plate 402, and the other end of the two casters 401 is rotatably connected to the other track clamping plate 402. Guide grooves 30 are respectively formed on the opposite sides of the guide rail 3, and the guide grooves 30 extend along the guide rail 3. The bottoms of the two track clamping plates 402 can respectively be stuck in the two guide grooves 30.

[0042] Referring to Figure 1 - Figure 6 , the pushing electric cylinders 5 are also respectively arranged on the opposite sides of the frame 1. The telescopic ends of the two pushing electric cylinders 5 are respectively connected to the two guide rails 3. The pushing electric cylinder 5 is used to drive the frame 1 to drive the caster assembly 40 to move along the guide rail 3. Specifically, referring to Figure 2 , the first fixing block 50 is fixedly connected to the frame 1. The pushing electric cylinder 5 is hinged to the first fixing block 50, and the hinge shaft 52 between the pushing electric cylinder 5 and the first fixing block 50 is horizontally perpendicular to the guide rail 3; the second fixing block 51 is fixedly connected to the guide rail 3. The telescopic end of the pushing electric cylinder 5 is hinged to the second fixing block 51, and the hinge shaft 52 between the pushing electric cylinder 5 and the second fixing block 51 is horizontally perpendicular to the guide rail 3.

[0043] Referring to Figure 4 , Figure 5 , Figure 7 and Figure 8, a leveling electric cylinder 6 is arranged on the mounting base 2. A sliding seat 60 is drivingly connected to the telescopic end of the leveling electric cylinder 6. The sliding seat 60 is fixedly connected to the frame 1. The mounting base 2 is located at the bottom of the frame 1. Two sliding grooves are arranged on the mounting base 2 along the longitudinal direction (the direction of forward or backward movement) of the frame 1. Two ends of the sliding seat 60 are respectively arranged to slide in the sliding grooves along the transverse direction (the width direction of the frame 1) of the frame 1, so that the frame 1 can move transversely relative to the mounting base 2, and the mounting base 2 can lift and lower synchronously with the frame 1. Specifically, two connecting components are arranged on the mounting base 2 at intervals along the transverse direction of the frame 1. The leveling electric cylinder 6 is arranged between the two connecting components. The connecting component includes two connecting blocks 20. The two connecting blocks 20 are arranged at intervals along the longitudinal direction of the frame 1. The sliding grooves 201 are formed on the side faces of the two connecting blocks 20 facing each other. The leveling electric cylinder 6 is a two-way electric cylinder. Both telescopic ends of the two-way electric cylinder are connected with the sliding seat 60. Two ends of one sliding seat 60 are respectively slidably connected with the sliding grooves 201 of the two connecting blocks 20 of one connecting component, and two ends of the other sliding seat 60 are respectively slidably connected with the sliding grooves 201 of the two connecting blocks 20 of the other connecting component.

[0044] The explosion-proof electric control box 7 is arranged on the frame 1. The explosion-proof electric control box 7 is used to control the synchronous or independent lifting of the telescopic ends of the bottom-lifting electric cylinders 4; the explosion-proof electric control box 7 is also used to control the synchronous pushing of the frame 1 forward or backward by the pushing electric cylinders 5; the explosion-proof electric control box 7 is also used to control the leveling electric cylinder 6 to adjust the transverse movement of the frame 1.

[0045] The working principle of the utility model:

[0046] 1. Initial state:

[0047] The whole frame 1 lands on the ground, supported by the mounting base 2. The piston rods of the bottom-lifting electric cylinders 4 are in the retracted state. The track splint 402 lifts the guide rail 3 and separates it from the ground. The piston rods of the pushing electric cylinders 5 are in the retracted state.

[0048] 2. The forward process of the self-propelled tail of the belt conveyor:

[0049] (1) The forward movement process of the frame 1:

[0050] The piston rod of the bottom-lifting electric cylinder 4 extends, and the caster assembly 40 drives the guide rail 3 to move downward. When the guide rail 3 touches the ground, the piston rod of the bottom-lifting electric cylinder 4 continues to extend, causing the track clamping plate 402 to disengage from the guide rail 3. After the piston rod of the bottom-lifting electric cylinder 4 continues to extend, the caster 401 presses against and fits the upper surface of the guide rail 3. The piston rod of the bottom-lifting electric cylinder 4 continues to extend until the frame 1 is lifted off the ground and is converted to be supported by the guide rail 3. At this time, the piston rod of the pushing electric cylinder 5 extends, pushing the connected frame 1 to move forward along the guide rail 3. Since the guide rail 3 and the ground are relatively stationary due to the frictional force, when the piston rod of the pushing electric cylinder 5 extends, the whole frame 1 is pushed forward by one stroke.

[0051] (2) The guide rail 3 moves forward

[0052] The piston rod of the bottom-lifting electric cylinder 4 retracts, causing the whole frame 1 to land on the ground and be supported by the mounting seat 2. The piston rod of the bottom-lifting electric cylinder 4 continues to retract, causing the caster 401 to move above the guide rail 3 and disengage from the guide rail 3. Then, the piston rod of the bottom-lifting electric cylinder 4 continues to retract, and the track clamping plate 402 moves upward and contacts the guide rail 3 (the two track clamping plates 402 clamp the guide rail 3), lifting the guide rail 3 off the ground. At this time, the piston rod of the pushing electric cylinder 5 contracts, driving the guide rail 3 to move forward by one stroke, and the forward movement action ends.

[0053] This process repeats in a cycle to achieve the forward movement of the self-propelled tail of the belt conveyor.

[0054] 3. The backward movement process of the self-propelled tail of the belt conveyor:

[0055] (1) The guide rail 3 moves backward:

[0056] The piston rod of the pushing electric cylinder 5 extends, and the guide rail 3 moves backward by one stroke between the track clamping plate 402 and the caster 401 along the running direction of the conveyor.

[0057] (2) The frame 1 moves backward:

[0058] The piston rod of the bottom-lifting electric cylinder 4 extends out, and the track clamp 402 drives the guide rail 3 to the ground. The piston rod of the bottom-lifting electric cylinder 4 continues to extend, and the track clamp 402 is separated from the guide rail 3. After the piston rod of the bottom-lifting electric cylinder 4 continues to extend, the caster 401 is pressed against the upper surface of the guide rail 3, and the piston rod of the bottom-lifting electric cylinder 4 continues to extend until the frame 1 is lifted up as a whole and leaves the ground, and is converted to be supported by the guide rail 3; at this time, the piston rod of the push electric cylinder 5 retracts, pulling the frame 1 connected to it along the guide rail 3 to When the frame 1 is moved backward, the guide rail 3 and the ground are relatively still due to the friction force. Therefore, when the piston rod of the push electric cylinder 5 is retracted, the frame 1 is pulled backward as a whole for a stroke. The piston rod of the bottom lifting electric cylinder 4 is retracted, so that the frame 1 falls to the ground as a whole, and the piston rod of the bottom lifting electric cylinder 4 continues to retract, so that the caster 401 moves to the top of the guide rail 3 and separates from the guide rail 3, and then the piston rod of the bottom lifting electric cylinder 4 continues to retract, the track clamp 402 moves up and contacts with the guide rail 3, lifts the guide rail 3, and separates the guide rail 3 from the ground, and the backward movement is completed.

[0059] This cycle is repeated to achieve the retreat of the belt conveyor's self-moving tail.

[0060] In summary, the effective effects of the utility model are as follows:

[0061] 1. The utility model adopts a fully electric drive execution system to realize the lifting, forward and backward movement and lateral movement of the frame 1. Compared with the lifting, forward and backward movement of the frame 1 controlled by the hydraulic system, the utility model effectively improves the response speed of the frame 1, and there is no need to consider the problems of leakage and oil seal replacement caused by the hydraulic system, thereby achieving the effect of low-cost maintenance with reduced maintenance or no maintenance.

[0062] 2. During use, the telescopic ends of each bottom-lifting electric cylinder 4 can be controlled to rise and fall synchronously or independently through the flameproof electric control box 7 to adjust the horizontality of the frame 1; specifically, when there is no height difference between the two guide rails 3 supported on the ground, the telescopic ends of each bottom-lifting electric cylinder 4 can be controlled to rise and fall synchronously through the flameproof electric control box 7; when the two guide rails 3 supported on the ground have a height difference between the two guide rails 3 due to the uneven ground, the lifting stroke of the telescopic ends of each bottom-lifting electric cylinder 4 can be independently controlled. In this way, the horizontality of the frame 1 can be adjusted to a certain extent, thereby improving the adaptive effect of the frame 1.

[0063] 3. The self-moving tail of the belt conveyor of the utility model can not only control the frame 1 forward and backward and lifting and lowering, but also control the lateral movement of the frame 1, thereby realizing the deviation adjustment action of the frame 1 and improving the adaptive effect of the frame 1.

[0064] 4. By using the flameproof electric control box 7 to control the lifting electric cylinder 4, the pushing electric cylinder 5, and the leveling electric cylinder 6, the self-propelled tail of the belt conveyor of the present utility model can operate safely and reliably in industrial sites filled with explosive gases or dust, improving the safety performance of the self-propelled tail of the belt conveyor.

[0065] 5. The self-propelled tail of the belt conveyor of the present utility model uses a fully electric drive execution system to achieve the lifting, forward and backward movement, and lateral movement of the frame 1. Compared with the hydraulic system for controlling the lifting, forward and backward movement, and lateral movement of the frame 1, the electric drive system has high-precision position control capabilities, can accurately achieve the synchronization consistency of various action mechanisms such as pushing, height adjustment, and leveling, and has an improved response speed, meeting the requirements of high efficiency, high speed, and high precision.

[0066] 6. Since the electric cylinder is not easily affected by the ambient temperature, the self-propelled tail of the belt conveyor of the present utility model can operate normally in harsh environments such as low and high temperatures, with high reliability and safety.

[0067] Based on the above structure, the self-propelled tail of the belt conveyor of the present utility model further includes a remote control and a receiver 8. The receiver 8 is arranged on the flameproof electric control box 7 and is electrically connected to the flameproof electric control box 7. The remote control is communicatively connected to the flameproof electric control box 7. The receiver 8 is used to receive the remote control signal of the remote control. The flameproof electric control box 7 controls the working states of the lifting electric cylinder 4, the pushing electric cylinder 5, and the leveling electric cylinder 6 according to the remote control signal received by the receiver 8. Thus, it can be seen that the operator can remotely control the adjustment of the overall posture of the self-propelled tail of the belt conveyor through the remote control, avoiding the operator working underground in the mine, thereby improving the safety performance of the operation.

[0068] In addition, an audible and visual alarm controlled by the flameproof electric control box 7 is also arranged on the frame 1. The audible and visual alarm is used to detect whether the working states of the lifting electric cylinder 4, the pushing electric cylinder 5, and the leveling electric cylinder 6 are normal. When any one of the lifting electric cylinder 4, the pushing electric cylinder 5, and the leveling electric cylinder 6 has an abnormal operation, the flameproof electric control box 7 controls the audible and visual alarm to give an alarm and stop the operation to prevent the occurrence of safety accidents.

[0069] The frame 1 of this embodiment is formed by connecting multiple frame bodies end to end, which can facilitate the segmented transportation of the frame 1 to the site, thus facilitating the operation.

[0070] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A self - moving tail for a belt conveyor, comprising a frame, a caster assembly and two guide rails, characterized in that, It further includes a mounting base and an electric drive execution system. The electric drive execution system includes a bottom-lifting electric cylinder, a pushing electric cylinder, a leveling electric cylinder, and an explosion-proof electric control box. The bottom-lifting electric cylinders are respectively fixed on the opposite sides of the frame. The telescopic end of the bottom-lifting electric cylinder is drivingly connected to the caster assembly. The caster assembly can move the frame along the guide rail, and the caster assembly can drive the guide rail and the frame to move up and down relative to each other under the drive of the bottom-lifting electric cylinder. The pushing electric cylinders are also respectively arranged on the opposite sides of the frame. The telescopic ends of the two pushing electric cylinders are respectively connected to the two guide rails, and are used to drive the frame to drive the caster assembly to move along the guide rail. The leveling electric cylinder is installed on the mounting base. The mounting base is located at the bottom of the frame. The telescopic end of the leveling electric cylinder is drivingly connected to a sliding seat. The sliding seat is fixedly connected to the frame. Two sliding grooves are arranged along the longitudinal direction of the frame on the mounting base. The two ends of the sliding seat are respectively slidably arranged in the sliding grooves along the transverse direction of the frame, so that the frame can move in the transverse direction relative to the mounting base, and the mounting base can move up and down synchronously with the frame. The explosion-proof electric control box is arranged on the frame. The explosion-proof electric control box is used to control the telescopic ends of the bottom-lifting electric cylinders to lift up and down synchronously or independently. The explosion-proof electric control box is also used to control the two pushing electric cylinders to synchronously push the frame forward or backward. The explosion-proof electric control box is also used to control the leveling electric cylinder to adjust the transverse movement of the frame.

2. The self - shifting tail for belt conveyor according to claim 1, characterized in that, It further includes a remote controller and a receiver. The receiver is arranged on the explosion-proof electric control box and is electrically connected to the explosion-proof electric control box. The remote controller is communicatively connected to the explosion-proof electric control box. The receiver is used to receive the remote control signal of the remote controller. The explosion-proof electric control box controls the working states of the bottom-lifting electric cylinder, the pushing electric cylinder, and the leveling electric cylinder according to the remote control signal received by the receiver.

3. The self - shifting tail for belt conveyor according to claim 1, characterized in that, The caster assembly includes two casters and two track clamping plates. One ends of the two casters are rotatably connected to one track clamping plate, and the other ends of the two casters are rotatably connected to the other track clamping plate. Guide grooves are respectively formed on the opposite sides of the guide rail. The guide grooves extend along the guide rail. The bottoms of the two track clamping plates can respectively be stuck in the two guide grooves.

4. The self - moving tail for belt conveyor according to claim 1, characterized in that, It further includes a first fixing block and a second fixing block. The first fixing block is fixedly connected to the frame. The pushing electric cylinder is hinged to the first fixing block. The hinge shaft between the pushing electric cylinder and the first fixing block is horizontally perpendicular to the guide rail. The second fixing block is fixedly connected to the guide rail. The telescopic end of the pushing electric cylinder is hinged to the second fixing block. The hinge shaft between the pushing electric cylinder and the second fixing block is horizontally perpendicular to the guide rail.

5. The self - moving tail for belt conveyor according to claim 1, characterized in that, An audible and visual alarm controlled by the explosion-proof electric control box is arranged on the frame. The audible and visual alarm is used to detect whether the working states of the bottom-lifting electric cylinder, the pushing electric cylinder, and the leveling electric cylinder are normal.

6. The self - shifting tail for belt conveyor according to claim 1, wherein, Each guide rail corresponds to multiple bottom-lifting electric cylinders.

7. The self - shifting tail for belt conveyor according to claim 1, characterized in that, The frame is formed by connecting multiple frame bodies end to end.

8. The self - shifting tail for belt conveyor according to claim 1, wherein, Two connecting components are arranged on the mounting base at intervals along the transverse direction of the frame. The leveling electric cylinder is arranged between the two connecting components. The connecting component includes two connecting blocks. The two connecting blocks are arranged at intervals along the longitudinal direction of the frame. The sliding grooves are formed on the mutually facing sides of the two connecting blocks. The leveling electric cylinder is a two-way electric cylinder. Both telescopic ends of the two-way electric cylinder are connected with the sliding seats. The two ends of one sliding seat are respectively slidably connected with the sliding grooves of the two connecting blocks of one connecting component, and the two ends of the other sliding seat are respectively slidably connected with the sliding grooves of the two connecting blocks of the other connecting component.

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