Movable telescopic conveyor and silo top conveying device

Abstract

The utility model belongs to the technical field of silos. The movable telescopic conveyor is characterized in that the movable telescopic conveyor comprises a telescopic material conveying mechanism and a multi-point discharging conveyor used for being movably connected with the top of a silo, the movable telescopic conveyor comprises a telescopic truss assembly, the telescopic truss assembly comprises a fixed truss and a telescopic truss, and the fixed truss and the telescopic truss are provided with a feeding assembly and a discharging assembly respectively; the telescopic driving assembly is connected with the telescopic truss through a transmission assembly; the material conveying assembly is arranged on the telescopic material conveying mechanism and used for conveying the materials from the feeding assembly to the discharging assembly; the pitching mechanism is arranged at the discharging end of the fixed truss and used for lifting the telescopic conveying mechanism; and the moving mechanism is arranged on the telescopic conveying mechanism and used for moving the telescopic conveyor on the top of the silo. The silo top conveying system is used for solving the technical problems that an existing silo top conveying system is high in equipment vacancy rate, high in construction cost and low in silo capacity. The utility model further discloses a silo top conveying device which comprises the movable telescopic conveyor.

Description

Technical Field

[0001] This utility model belongs to the field of silo technology, specifically relating to a mobile telescopic conveyor and a silo top conveying device including the above-mentioned conveyor. Background Technology

[0002] Silos are the main equipment for storing grain in grain depots. They are highly automated and widely used. On the grain entering the silo, each row of silos in the silo group needs to be equipped with a multi-point unloading conveyor, and star-shaped silos use chute side feeding.

[0003] like Figure 1 As shown, the existing silo top requires three multi-point unloading conveyors as the main conveying equipment for the silo, and each star-shaped silo needs to be equipped with a dedicated chute, resulting in high engineering costs. The general grain loading process is to load only one silo at a time, and only move to the next silo after the current silo is full. As a result, two multi-point unloading conveyors are always idle.

[0004] In addition, since lateral feeding not only affects the capacity of the star silo, but also because the multi-point unloading conveyor causes the feed inlet of the vertical silo to deviate from the center of the silo in order to accommodate the star silo feeding, it also affects the capacity to some extent. Utility Model Content

[0005] The first objective of this invention is to provide a mobile telescopic conveyor to solve the technical problems of high equipment idle rate, high engineering cost, and low silo capacity in existing silo top conveying systems.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a mobile telescopic conveyor, characterized in that it includes:

[0007] A telescopic conveying mechanism is used to movably connect to a multi-point unloading conveyor on the top of a silo. The telescopic conveying mechanism includes:

[0008] A telescopic truss assembly includes a fixed truss and a telescopic truss, wherein the telescopic truss is mounted on the fixed truss via a track assembly, a feeding assembly is mounted on the fixed truss, and a discharging assembly is mounted on the telescopic truss;

[0009] A telescopic drive assembly is mounted on a fixed truss and is connected to the telescopic truss via a transmission assembly;

[0010] A material conveying assembly, mounted on a telescopic conveying mechanism, is used to convey materials from the feeding assembly to the discharging assembly;

[0011] A pitching mechanism is installed at the discharge end of the fixed truss and is used to raise and lower the telescopic conveying mechanism.

[0012] A moving mechanism is provided on the telescopic conveying mechanism to enable the telescopic conveyor to move on the top of the silo.

[0013] This invention uses a moving mechanism to achieve precise positioning of the telescopic conveyor; it uses a telescopic conveying mechanism to ensure the accuracy of the telescopic position; and it uses a pitching mechanism to raise and lower the discharge end of the telescopic conveying mechanism, which can adapt to feeding from the center of a silo or a star-shaped silo, thereby increasing the silo capacity.

[0014] To solve the technical problems of the track assembly, this utility model adopts the following technical solution: the track assembly includes an upper track, a lower track, a front track wheel, and a rear track wheel. The upper track and the lower track are mounted on a fixed truss, and the front track wheel and the rear track wheel are mounted on a telescopic truss. The front track wheel and the rear track wheel perform linear reciprocating motion between the upper track and the lower track. The rear track wheel and the front track wheel are suspended between the lower track and the upper track, ensuring that the telescopic truss can move linearly along the track.

[0015] To address the technical problem of conveyor belt slack during the telescopic movement of a truss, this invention adopts the following technical solution: the material conveying assembly includes a drive roller, a fixed redirecting roller, a telescopic redirecting roller, and a conveyor belt. The drive roller and the fixed redirecting roller are both mounted on the fixed truss; the telescopic redirecting roller is mounted on the telescopic truss, and the conveyor belt is fitted onto the drive roller, the fixed redirecting roller, and the telescopic redirecting roller. The telescopic redirecting roller moves together with the telescopic truss, and the conveyor belt wraps around the telescopic redirecting roller and the fixed redirecting roller to ensure that the conveyor belt does not slack during the telescopic movement of the truss.

[0016] To solve the technical problem of how to implement the pitch mechanism, the present invention adopts the following technical solution: the pitch mechanism includes an electric push rod, a fixed arm is provided on the electric push rod, and a telescopic arm is provided on the fixed arm;

[0017] The electric push rod is hinged to the fixed truss; the fixed arm is hinged to the fixed bracket, and the end of the telescopic arm is provided with a rolling element.

[0018] To solve the technical problem of how the pitch mechanism achieves pitch motion, this utility model adopts the following technical solution: a servo motor is installed on the electric push rod.

[0019] To solve the technical problem of how to implement the telescopic drive component and the transmission component, the present invention adopts the following technical solution: the telescopic drive component is a geared motor, and an encoder is installed on the geared motor;

[0020] The transmission assembly includes a drive shaft and a meshing gear and rack; the gear is mounted on the drive shaft, which is connected to the telescopic drive assembly, and the rack is mounted on the telescopic truss. The rotation of the gear is converted into the linear motion of the rack, thereby driving the telescopic truss to perform linear telescopic motion.

[0021] To address the technical problem of how the moving mechanism is implemented, this invention adopts the following technical solution: the moving mechanism is an AGV (Automated Guided Vehicle) trolley, and there are two AGV trolleys, respectively located at both ends of the fixed truss. The movement of this mobile telescopic conveyor relies on two AGV trolleys. The AGV trolleys can achieve precise positioning via positioning tags, enabling the mobile telescopic conveyor to accurately reach each working position.

[0022] To solve the technical problem of how to implement the feeding and discharging components, the present invention adopts the following technical solution: the feeding component includes a feeding shoe, a circular feeding port is provided on the feeding shoe, and an adjusting baffle is provided inside the feeding shoe;

[0023] The feeding assembly is provided with a first sealing and dust suppression mechanism, including:

[0024] Side baffles are provided on both sides of the feed shoe, and the side baffles penetrate the fixed truss;

[0025] A rear baffle is located on the side of the feed shoe;

[0026] An upper cover plate is respectively disposed on the side plate of the feed shoe and the side baffle, and the upper cover plate passes through the fixed truss.

[0027] The discharge assembly includes a conical discharge hopper with a circular discharge port on it. The diameter of the circular discharge port is smaller than the diameter of the circular inlet. A flexible connection is provided on the circular discharge port for cooperating with the circular inlet.

[0028] The discharge assembly is provided with a second sealing and dust suppression mechanism, including:

[0029] A dust curtain is installed between the upper surface of the conveyor and the conical discharge hopper;

[0030] The middle baffle is located between the carrying conveyor belt and the return conveyor belt;

[0031] The lower baffle is located between the lower surface of the return conveyor belt and the conical discharge hopper.

[0032] This utility model of mobile telescopic conveyor adopts good sealing and dust suppression measures. The tail receiving section is formed by side baffles, upper cover, rear baffle and dust curtain to form a closed space to lock the dust inside the receiving section. Except for the part of the conical discharge hopper at the head which uses a dust curtain to enter the material, the rest of the parts are tightly sealed.

[0033] The second objective of this utility model is to provide a silo top conveying device, including a multi-point unloading conveyor, characterized in that the multi-point unloading conveyor is installed on the top of the middle row silo and is used to feed material into the central inlet of the middle row silo.

[0034] The multi-point unloading conveyor is movably connected to any of the above-mentioned mobile telescopic conveyors for feeding materials into the central inlet of other silos and star-shaped silos.

[0035] This invention requires only one multi-point unloading conveyor on the top of the silo. The discharge port of the conveyor can be located in the center of the silo, while the silos on both sides and the star-shaped silo are operated by a mobile telescopic conveyor. This invention saves two multi-point unloading conveyors, which not only reduces the construction cost of the grain depot but also improves the volume utilization rate of the silos (all inlets are located in the center of the silo).

[0036] To address the technical challenge of feeding materials from the central inlet of a distant silo, this invention employs the following solution: a number of mobile telescopic conveyors feed materials to other silos, with the outlets and inlets of adjacent conveyors overlapping. This precise overlap of two mobile telescopic conveyors allows for feeding materials from a distance far from the central inlet of the silo, thereby increasing silo capacity. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of an existing silo top conveyor system;

[0038] Figure 2 This is a schematic diagram of the retracted state of the mobile telescopic conveyor of this utility model;

[0039] Figure 3 This is a schematic diagram of the extended state of the mobile telescopic conveyor of this utility model;

[0040] Figure 4 This is a schematic diagram of the track assembly and material conveying assembly of the mobile telescopic conveyor of this utility model;

[0041] Figure 5 This is a schematic diagram of the pitching mechanism of the mobile telescopic conveyor of this utility model;

[0042] Figure 6 This is a schematic diagram of the structure of two mobile telescopic conveyors overlapping in this utility model;

[0043] Figure 7This is a schematic diagram of the feeding assembly structure of the mobile telescopic conveyor of this utility model;

[0044] Figure 8 This is a schematic diagram of the material discharge component of the mobile telescopic conveyor of this utility model;

[0045] Figure 9 This is a schematic diagram of the structure of the silo top conveying device of this utility model;

[0046] In the picture:

[0047] 10. Mobile telescopic conveyors;

[0048] 100 Telescopic conveying mechanism; 110 Fixed truss; 111 First hinge seat; 112 Second hinge seat; 113 Third hinge seat; 114 AGV trolley interface;

[0049] 120 telescopic truss;

[0050] 130 Feed assembly; 131 Feed shoe; 1310 Circular feed inlet; 131 Inside the feed shoe; 132 Adjusting baffle; 133 Side baffle; 134 Rear baffle; 135 Upper cover plate;

[0051] 140 Discharge assembly; 141 Conical discharge hopper; 1410 Circular discharge port; 142 Flexible connection; 1421 Large circular plate; 143 Dust curtain; 144 Middle baffle; 145 Lower baffle;

[0052] 150 Conveying assembly; 151 Drive roller; 152 Fixed redirecting roller; 153 Telescopic redirecting roller; 154 Conveyor belt;

[0053] 160 Track assembly; 161 Upper track; 162 Lower track; 163 Front track wheel; 164 Rear track wheel;

[0054] 170 Telescopic drive assembly; 180 Transmission assembly; 181 Drive shaft; 182 Rack and pinion;

[0055] 200 Pitch mechanism; 210 Electric actuator; 220 Fixed arm; 230 Telescopic arm;

[0056] 300 mobile mechanism;

[0057] More than 20 unloading conveyors; 30 silos; 40 star-shaped silos. Detailed Implementation

[0058] The present invention will be further described below with reference to the accompanying drawings.

[0059] Example 1

[0060] like Figure 2-8As shown, the mobile telescopic conveyor 10 includes a telescopic conveying mechanism 100, a pitching mechanism 200, and a moving mechanism 300.

[0061] The telescopic conveying mechanism 100 is used to movably connect to the multi-point unloading conveyor on the top of the silo. The telescopic conveying mechanism 100 includes a telescopic truss assembly, a feeding assembly 130, a discharging assembly 140, a conveying assembly 150, and a telescopic drive assembly 170.

[0062] The telescopic truss assembly includes a fixed truss 110 and a telescopic truss 120.

[0063] A first hinge seat 111, a second hinge seat 112, and a third hinge seat 113 are respectively installed on the fixed truss 110. The first hinge seat 111 is located at the bottom of the feed end of the fixed truss 110. The second hinge seat 112 and the third hinge seat 113 are located at the ends of the discharge end of the fixed truss 110.

[0064] An AGV trolley interface 114 is installed at the bottom of the fixed truss 110 for mounting the AGV trolley.

[0065] A feeding assembly 130 is mounted on the fixed truss 110. In one embodiment, the feeding assembly 130 includes a feeding shoe 131, which has a circular feed inlet 1310 and an adjusting baffle 132 inside. The feeding shoe is used to guide and concentrate the material at the tail receiving section to prevent the conveyor belt from running off-center due to uneven material loading.

[0066] A first sealing and dust suppression mechanism is provided on the feeding assembly 130, including a side baffle 133, a rear baffle 134, and an upper cover 135. Side baffles 133 are installed on both sides of the feeding shoe 131, and the side baffles 133 penetrate the fixed truss 110. A rear baffle 134 is installed on the rear side of the feeding shoe 131. An upper cover 135 is installed on the side plates and side baffles 133 of the feeding shoe 131. The upper cover 135 penetrates the fixed truss 110.

[0067] The feeding assembly uses a feeding shoe with adjustable baffles, which can effectively prevent material from impacting the conveyor belt and causing it to run off-track. Side baffles and a rear baffle are respectively installed on both sides and the rear of the feeding shoe, and an upper cover is installed on the top. The length of the baffles and the upper cover extends from the rear of the feeding shoe to the entire fixed section of the mobile telescopic conveyor, forming a closed space with the conveyor belt to prevent dust from overflowing.

[0068] The telescopic truss 120 is mounted on the fixed truss 110 via a track assembly 160. In one embodiment, the track assembly 160 includes an upper track 161, a lower track 162, a front track wheel 163, and a rear track wheel 164.

[0069] The fixed truss 110 is equipped with an upper rail 161 and a lower rail 162, while the telescopic truss 120 is equipped with a front rail wheel 163 and a rear rail wheel 164. The front rail wheel 163 and the rear rail wheel 164 reciprocate linearly between the upper rail 161 and the lower rail 162. The rear rail wheel and the front rail wheel are suspended between the lower rail and the upper rail, ensuring that the telescopic truss can move linearly along the rails.

[0070] A discharge assembly 140 is provided on the telescopic truss 129. In one embodiment, the discharge assembly 140 includes a conical discharge hopper 141 with a circular discharge port 1410. The diameter of the circular discharge port 1410 is smaller than the diameter of the circular inlet port 1310. A flexible connector 142 is provided on the circular discharge port for cooperating with the circular inlet port 1310. A large annular plate 1421 is provided at the outlet of the flexible connector 142.

[0071] When two mobile telescopic conveyors are working together, their projections may not be on the same straight line (generally within ±45°). To achieve precise docking, circular inlets and outlets are used. To compensate for misalignment of the inlets and outlets caused by positioning errors of the AGV trolley, a combination of a small-diameter circular outlet and a large circular plate is used in conjunction with a large-diameter circular inlet. The circular inlets and outlets of the mobile telescopic conveyors and the flexible docking connection allow for a sealed overlap of the two mobile telescopic conveyors at any angle and in any pitch position.

[0072] The telescopic drive assembly 170 is mounted on the fixed truss 110. In one embodiment, the telescopic drive assembly 170 is a geared motor with an encoder mounted on it.

[0073] The telescopic drive assembly 170 is connected to the telescopic truss 120 via the transmission assembly 180. The transmission assembly 180 includes a drive shaft 181 and a meshing gear and rack 182. The drive shaft 181 is connected to the telescopic drive assembly 170. A gear is mounted on the drive shaft 181, and a rack 182 is mounted on the telescopic truss 110. The rotation of the gear is converted into the linear motion of the rack, thereby driving the telescopic truss to perform linear telescopic motion.

[0074] A material conveying assembly 150 is mounted on a telescopic conveying mechanism for conveying materials from the feeding assembly 130 to the discharging assembly 140. In one embodiment, the material conveying assembly 150 includes a drive roller 151, a fixed redirecting roller 152, a telescopic redirecting roller 153, and a conveyor belt 154. The drive roller 151 and the fixed redirecting roller 152 are mounted on a fixed truss 110. The telescopic redirecting roller 153 is mounted on a telescopic truss. The conveyor belt 154 is fitted onto the drive roller 151, the fixed redirecting roller 152, and the telescopic redirecting roller 153.

[0075] The telescopic redirecting roller 153 moves together with the telescopic truss 120, and the conveyor belt 154 is wrapped around the telescopic redirecting roller 153 and the fixed redirecting roller 152 to ensure that the conveyor belt does not loosen when the telescopic truss moves.

[0076] In one embodiment, a second sealing and dust suppression mechanism is provided on the discharge assembly 140, including a dust curtain 143, a middle baffle 144, and a lower baffle 145. The dust curtain 143 is installed between the upper surface of the carrying conveyor belt and the conical discharge hopper. The middle baffle 144 is installed between the carrying conveyor belt and the return conveyor belt. The lower baffle 145 is installed between the lower surface of the return conveyor belt and the conical discharge hopper. The middle baffle is positioned between the return conveyor belt and the carrying conveyor belt, and the lower baffle is positioned from the lower surface of the return conveyor belt to the bottom of the hopper. The baffles are tightly fitted to the conveyor belts, providing a tight seal. The dust curtain, positioned from the upper surface of the conveyor belt to the top of the hopper, does not obstruct material passage and reduces the exchange of dust-laden gas within the hopper with the outside environment, thus achieving dust suppression.

[0077] This utility model of mobile telescopic conveyor adopts good sealing and dust suppression measures. The tail receiving section is formed by side baffles, upper cover, rear baffle and dust curtain to form a closed space to lock the dust inside the receiving section. Except for the part of the conical discharge hopper at the head which uses a dust curtain to enter the material, the rest of the parts are tightly sealed.

[0078] A pitch mechanism 200 is installed at the discharge end of the fixed truss 110 for raising and lowering the telescopic conveying mechanism. In one embodiment, the pitch mechanism includes an electric push rod 210. Preferably, a servo motor is mounted on the electric push rod 210. The electric push rod 210 is hinged to the fixed truss 110. Specifically, the electric push rod 210 is connected to a second hinge seat 112 on the fixed truss 110. A fixed arm 220 is mounted on the electric push rod 210. A telescopic arm 230 is mounted on the fixed arm 220. The fixed arm 220 is hinged to a fixed bracket 120. Specifically, the fixed arm 220 is connected to a third hinge seat 113 on the fixed truss 110.

[0079] The electric actuator, fixed arm, and fixed truss form a stable fixed structure. The pitch of the fixed truss relative to the ground is achieved through the relative extension and retraction of the electric actuator telescopic arm and the electric actuator fixed arm.

[0080] In one embodiment, to address the relative motion between the end of the electric actuator telescopic arm and the ground during pitching, a rolling element 240 is installed at the end of the telescopic arm 230. Specifically, a roller is installed at the end of the electric actuator telescopic arm.

[0081] A moving mechanism 300 is installed on the telescopic conveying mechanism to enable the telescopic conveyor to move on the top of the silo. In one embodiment, the moving mechanism 300 is an AGV (Automated Guided Vehicle) trolley, and there are two AGV trolleys, one at each end of the fixed 110. The movement of the telescopic conveyor of this invention relies on two AGV trolleys. The AGV trolleys can be precisely positioned using positioning tags, allowing the telescopic conveyor to accurately reach each working position. Example

[0082] like Figure 9 As shown, the silo top conveying device includes a multi-point unloading conveyor 20, which is installed on the top of the middle silo and is used to feed material into the central inlet of the middle silo. A movable telescopic conveyor 10, as described in Embodiment 1, is movably connected to the multi-point unloading conveyor for feeding material into the central inlets of other silos 30 and star-shaped silos 40.

[0083] In one embodiment, there are several mobile telescopic conveyors feeding other silos 30, and the discharge ports and inlets of adjacent mobile telescopic conveyors are connected in an overlapping manner.

[0084] This invention relies on the positioning data of the AGV trolley and the data calculation of the central control system to determine the accurate position of each mobile telescopic conveyor. At the same time, the telescopic conveying mechanism is positioned by the encoder of the telescopic drive component and the pitch mechanism is synchronized by the servo motor, so as to achieve accurate overlap of two mobile telescopic conveyors.

[0085] Brief description of the working process of the silo top conveying device: According to the positioning requirements of the AGV, positioning tags are placed on the ground of the silo top. The AGVs achieve positioning by scanning the positioning tags and transmit the positioning data to the central control system. The central control system calculates the precise position and direction of the mobile telescopic conveyor based on the positions of the two AGVs, and then issues instructions to the AGVs to move to the target position. When the mobile telescopic conveyor moves, it is lowered to the lowest position and retracted to the shortest state, creating a new type of intelligent and unmanned storage and transportation method.

[0086] After the mobile telescopic conveyor reaches the target position, it tilts and extends to the required working state according to the central control command. After aligning and pressing the inlet with the upstream outlet, and aligning and pressing the outlet with the inlet (or the inlet of the downstream mobile telescopic conveyor), the material can be conveyed.

[0087] Only one multi-point unloading conveyor needs to be installed on the top of the silo. The discharge port of the conveyor can be arranged in the center of the silo, and the silos on both sides and the star-shaped silo are operated by a mobile telescopic conveyor. This utility model saves two multi-point unloading conveyors, which not only reduces the construction cost of the grain depot, but also improves the volume utilization rate of the silos (all feed inlets are located in the center of the silo).

[0088] This invention utilizes an AGV (Automated Guided Vehicle) for movement, enabling precise positioning. The telescopic conveying mechanism employs a rack and pinion system with an encoder to ensure accurate telescopic positioning. The pitching mechanism uses two custom-designed electric push rods, with rolling wheels installed at their ends, ensuring free movement between the push rods and the ground as the telescopic conveyor's projected length changes during pitching.

[0089] The above embodiments are only for illustrating the technical features and concept of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made according to the spirit and implementation of this utility model should be covered within the protection scope of this utility model.

Claims

1. A mobile telescopic conveyor, characterized in that, include: A telescopic conveying mechanism is used to movably connect to a multi-point unloading conveyor on the top of a silo. The telescopic conveying mechanism includes: A telescopic truss assembly includes a fixed truss and a telescopic truss, wherein the telescopic truss is mounted on the fixed truss via a track assembly, a feeding assembly is mounted on the fixed truss, and a discharging assembly is mounted on the telescopic truss; A telescopic drive assembly is mounted on a fixed truss and is connected to the telescopic truss via a transmission assembly; A material conveying assembly, mounted on a telescopic conveying mechanism, is used to convey materials from the feeding assembly to the discharging assembly; A pitching mechanism is installed at the discharge end of the fixed truss and is used to raise and lower the telescopic conveying mechanism. A moving mechanism is provided on the telescopic conveying mechanism to enable the telescopic conveyor to move on the top of the silo.

2. The mobile telescopic conveyor according to claim 1, characterized in that, The track assembly includes an upper track, a lower track, a front track wheel, and a rear track wheel. The upper track and the lower track are mounted on the fixed truss, and the front track wheel and the rear track wheel are mounted on the telescopic truss. The front track wheel and the rear track wheel perform linear reciprocating motion between the upper track and the lower track.

3. The mobile telescopic conveyor according to claim 1, characterized in that, The material conveying assembly includes a drive roller, a fixed redirecting roller, a telescopic redirecting roller, and a conveyor belt. The drive roller and the fixed redirecting roller are both mounted on the fixed truss; the telescopic redirecting roller is mounted on the telescopic truss; and the conveyor belt is fitted onto the drive roller, the fixed redirecting roller, and the telescopic redirecting roller.

4. The mobile telescopic conveyor according to claim 1, characterized in that, The pitch mechanism includes an electric push rod, a fixed arm is provided on the electric push rod, and a telescopic arm is provided on the fixed arm; The electric push rod is hinged to the fixed truss; the fixed arm is hinged to the fixed bracket, and the end of the telescopic arm is provided with a rolling element.

5. The mobile telescopic conveyor according to claim 4, characterized in that, A servo motor is installed on the electric push rod.

6. The mobile telescopic conveyor according to claim 1, characterized in that, The telescopic drive assembly is a geared motor, and an encoder is installed on the geared motor; The transmission assembly includes a transmission shaft and meshing gears and racks; the gears are mounted on the transmission shaft, which is connected to the telescopic drive assembly, and the racks are mounted on the telescopic truss.

7. The mobile telescopic conveyor according to claim 1, characterized in that, The moving mechanism is an AGV (Automated Guided Vehicle), and there are two AGVs, which are respectively set at both ends of the fixed truss.

8. The mobile telescopic conveyor according to claim 1, characterized in that, The feeding assembly includes a feeding shoe, a circular feeding port on the feeding shoe, and an adjusting baffle inside the feeding shoe; The feeding assembly is provided with a first sealing and dust suppression mechanism, including: Side baffles are provided on both sides of the feed shoe, and the side baffles penetrate the fixed truss; A rear baffle is located on the side of the feed shoe; An upper cover plate is respectively disposed on the side plate of the feed shoe and the side baffle, and the upper cover plate passes through the fixed truss. The discharge assembly includes a conical discharge hopper with a circular discharge port on it. The diameter of the circular discharge port is smaller than the diameter of the circular inlet. A flexible connection is provided on the circular discharge port for cooperating with the circular inlet. The discharge assembly is provided with a second sealing and dust suppression mechanism, including: A dust curtain is installed between the upper surface of the conveyor and the conical discharge hopper; The middle baffle is located between the carrying conveyor belt and the return conveyor belt; The lower baffle is located between the lower surface of the return conveyor belt and the conical discharge hopper.

9. A silo top conveying device, including a multi-point unloading conveyor, characterized in that, The multi-point unloading conveyor is installed on the top of the middle discharge silo and is used to feed material into the central feed inlet of the middle discharge silo. The multi-point unloading conveyor is movably connected to the mobile telescopic conveyor according to any one of claims 1-8, for feeding materials to the central inlet of other silos and star-shaped silos.

10. The silo top conveying device according to claim 9, characterized in that, There are several mobile telescopic conveyors feeding other silos, and the discharge ports and inlets of adjacent mobile telescopic conveyors are connected in an overlapping manner.

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