CN115593973A

CN115593973A - Unloader and silo

Info

Publication number: CN115593973A
Application number: CN202211322901.3A
Authority: CN
Inventors: 王新龙; 马煜; 朱宁
Original assignee: Beijing Newbuck Equipment Engineering Technology Co ltd
Current assignee: Beijing Newbuck Equipment Engineering Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-01-13

Abstract

The invention relates to the technical field of material transfer, and particularly discloses an unloader and a silo. The unloader includes power device, discharge hopper, gyration mounting structure and material transport structure, and power device includes revolution actuating mechanism and rotation actuating mechanism, and the gyration mounting structure passes through revolution actuating mechanism and rotatably installs on the discharge hopper, and material transport structure rotatably installs on the gyration mounting structure through rotation actuating mechanism, and material transport structure carries the material toward the direction of gyration mounting structure to make the material unload from the discharge hopper. The invention solves the problem that the materials in the silo can not be smoothly discharged.

Description

Unloader and silo

Technical Field

The application relates to the technical field of material transfer, particularly, relate to an unloader and silo.

Background

At present, in the transfer technology of industrial materials, the silo is difficult to unload and incomplete to unload when storing materials with poor flowability, the prior unloading equipment aiming at the materials with poor flowability is less, so that the materials in the small silo are difficult to smoothly unload, and the prior unloading equipment has poor integration level, complex installation and large maintenance amount and is not beneficial to popularization and use.

Disclosure of Invention

The application provides a main aim at provides an unloader and silo to solve the problem that the material in the silo that mentions among the prior art can not smoothly unload away.

According to a first aspect of embodiments of the present application, there is provided an unloader including:

the power device comprises a revolution driving mechanism and a rotation driving mechanism;

a discharge hopper;

a swivel mounting structure rotatably mounted on the discharge hopper by the revolution drive mechanism;

the material conveying structure is rotatably arranged on the rotary mounting structure through the autorotation driving mechanism, and conveys materials towards the direction of the rotary mounting structure so as to discharge the materials from the discharge hopper.

Further, the revolution driving mechanism includes:

the revolution driving module is fixed on the discharge hopper;

and the turntable bearing is rotatably connected with the revolution driving module, and the turntable bearing rotatably installs the rotary installation structure on the discharge hopper.

Further, the revolution driving mechanism includes:

the revolution driving module is fixed on the discharge hopper;

a turntable bearing including a first rotating portion and a second rotating portion, the first rotating portion rotatably connected with the second rotating portion;

one of the first rotating part and the second rotating part is fixedly arranged on the discharge hopper;

the other of the first rotating part and the second rotating part is rotatably connected with the revolution driving module, and the other of the first rotating part and the second rotating part is also fixedly connected with the revolution mounting structure.

Further, the revolution driving module includes:

a revolution driving motor;

the fixing piece is fixed on the revolution driving motor and used for fixing the revolution driving motor on the discharge hopper;

and the rotary connecting piece is fixedly connected with an output shaft of the revolution driving motor and rotatably connected with the turntable bearing.

Further, the unloader still includes:

and the revolution driving mechanism is fixed on the discharge hopper through the fixed mounting frame.

Further, the power plant still includes:

the driving source comprises a driving motor and a hydraulic module;

the hydraulic module comprises a hydraulic oil tank, a hydraulic pump, a coupler and an oil path connecting assembly, the hydraulic oil tank is connected with the hydraulic pump, the driving motor passes through the coupler and the hydraulic pump, and the revolution driving mechanism and the rotation driving mechanism all pass through the oil path connecting assembly and the hydraulic pump.

Further, the oil circuit coupling assembling includes the rotatory sealed joint of hydraulic pressure, rotation actuating mechanism includes:

the hydraulic motor is connected with the hydraulic pump through the hydraulic rotary sealing joint;

the hydraulic motor is fixed on the rotary mounting structure, an output shaft of the hydraulic motor is connected with the material conveying structure, and the hydraulic motor drives the material conveying structure to convey the material towards the rotary mounting structure.

Further, the swivel mounting structure includes:

a sealing gland;

the sealing gland is fixed at one end of the material recovery bin, and the other end of the material recovery bin is rotatably arranged on the discharge hopper through the revolution driving mechanism;

the hydraulic motor is fixed in the material recovery bin through the sealing gland, and a feeding port is formed in one side, opposite to an output shaft of the hydraulic motor, of the material recovery bin;

one end of the material conveying structure enters the material recovery bin along the feeding port and is fixedly connected with an output shaft of the hydraulic motor.

Further, the material conveying structure comprises:

the spiral conveying structure comprises a spiral shaft and an unloading spiral, the unloading spiral is spirally fixed around a convex strip on the spiral shaft, and one end of the spiral shaft is fixedly connected with an output shaft of the hydraulic motor.

According to a second aspect of embodiments of the present application, there is provided a silo provided with an unloader at a bottom thereof.

Compared with the prior art, the technical scheme of the application has at least the following technical effects:

the unloader provided by the invention can revolve and rotate at three hundred and sixty degrees, and meanwhile, the material conveying structure conveys materials to the direction of the rotary mounting structure under the action of the autorotation driving mechanism so as to discharge the materials from the unloading hopper, and the smooth discharge of the materials in the silo is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural view of a discharging machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of the unloader shown in FIG. 1 at a bottom view;

FIG. 3 is a schematic view of the unassembled material transport structure of FIG. 1;

fig. 4 is a schematic structural diagram of a revolution driving module according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a seal gland, a hydraulic motor and a hydraulic rotary seal joint according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a material recycling bin and a turntable bearing coupled together according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of the material recovery bin of FIG. 6 shown with the turntable bearing detached;

FIG. 8 is a schematic view of a first mounting frame plate;

FIG. 9 is a schematic view showing an assembled structure of the discharge hopper and the second mounting frame plate;

FIG. 10 is a schematic view of an assembly structure of a driving motor and a hydraulic module;

figure 11 is a schematic structural view of a silo according to an embodiment of the present invention;

figure 12 is a schematic view of the assembly of the unloader and silo.

Wherein the figures include the following reference numerals:

01. a discharging machine; 10. a power plant; 11. a revolution driving module; 111. a revolution driving motor; 112. a fixing member; 113. a rotating connector; 12. a turntable bearing; 121. a first rotating section; 122. a second rotating section; 123. a screw; 13. fixing the mounting rack; 131. a first mounting frame plate; 132. a second mounting frame plate; 1321. mounting holes; 133. enclosing plates; 14. a hydraulic rotary seal joint; 15. a joint mounting bracket; 16. a hydraulic motor; 17. a drive source; 171. a drive motor; 172. a hydraulic pump; 173. a coupling; 174. a hydraulic oil tank; 175. a hydraulic oil air cooler; 20. a discharge hopper; 21. an oil passage introduction hole; 30. a swivel mounting structure; 31. a sealing gland; 32. a material recovery bin; 321. a feeding port; 40. a material conveying structure; 41. a screw shaft; 42. discharging screw; 02. a silo; 021. a bin body bottom plate; 03. a first discharge pipe; 04. a second discharge pipe; 05. electric gate valve.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 to 3, a discharging machine 01 according to a first embodiment of the present invention includes a power unit 10, a discharging hopper 20, a pivotal mounting structure 30 and a material conveying structure 40. The power device 10 includes a revolution driving mechanism and a rotation driving mechanism, the rotation mounting structure 30 is rotatably mounted on the discharging hopper 20 through the revolution driving mechanism, the material conveying structure 40 is rotatably mounted on the rotation mounting structure 30 through the rotation driving mechanism, and the material conveying structure 40 conveys the material to the direction of the rotation mounting structure 30 so as to discharge the material from the discharging hopper 20. Wherein, the power device 10 is integrally fixed outside the discharge hopper 20 through a pre-buried bracket.

The power device 10 further comprises a driving source 17, the driving source 17 comprises a driving motor 171 and a hydraulic module, as shown in fig. 10, the hydraulic module comprises a hydraulic oil tank 174, a hydraulic pump 172, a coupler 173, a hydraulic oil air cooler 175 and an oil path connecting assembly, the hydraulic oil tank 174 is connected with the hydraulic pump 172, the driving motor 171 is an electrically driven motor, the driving motor 171 is connected with the hydraulic pump 172 through the coupler 173 to provide kinetic energy for the hydraulic pump 172, the oil path connecting assembly comprises a connecting pipeline for flowing hydraulic oil, a hydraulic control valve block and the like, the hydraulic control valve block controls the pressure, the flow rate and the flowing direction of hydraulic oil fluid in the hydraulic driving source 17 so as to meet the requirements of executing elements such as a revolution driving mechanism and a rotation driving mechanism to execute different rotating actions, and the revolution driving mechanism and the rotation driving mechanism are both connected with the hydraulic pump 172 through the oil path connecting assembly, so as to provide driving energy for the power system of the whole discharging machine 01. A hydraulic oil air cooler 175 is disposed in the hydraulic oil circuit between the hydraulic pump 172 and the hydraulic oil tank 174, and the high temperature oil in the hydraulic system flows through the hydraulic oil air cooler 175, and the temperature of the oil is reduced to the working temperature by the hydraulic oil air cooler 175 to ensure that the hydraulic pump 172 can continuously perform normal operation.

The revolution driving mechanism provided by the embodiment of the invention comprises a revolution driving module 11 and a turntable bearing 12, as shown in fig. 1 and fig. 2, the revolution driving module 11 is fixed on the discharging hopper 20, the turntable bearing 12 is rotatably connected with the revolution driving module 11, and the turntable bearing 12 rotatably mounts the rotary mounting structure 30 on the discharging hopper 20. As shown in fig. 7, the turntable bearing 12 includes a first rotating portion 121 and a second rotating portion 122, the first rotating portion 121 is rotatably connected to the second rotating portion 122, and one of the first rotating portion 121 and the second rotating portion 122 is fixedly mounted on the discharge hopper 20. The other of the first rotating portion 121 and the second rotating portion 122 is rotatably connected to the revolution driving module 11, and the other of the first rotating portion 121 and the second rotating portion 122 is also fixedly connected to the revolution mounting structure 30 by screws 123. In some embodiments of the present invention, as shown in fig. 4, the revolution driving module 11 includes a revolution driving motor 111, a fixing member 112 and a rotation connecting member 113, the revolution driving motor 111 may be specifically selected as a hydraulic motor, the hydraulic motor is connected to the hydraulic pump 172 through a corresponding oil connecting assembly, the rotation connecting member 113 is driven by the hydraulic pump 172 to rotate, the fixing member 112 is fixed on the revolution driving motor 111 for fixing the revolution driving motor 111 on the discharging hopper 20, the rotation connecting member 113 is fixedly connected to an output shaft of the revolution driving motor 111, and the rotation connecting member 113 is rotatably connected to the turntable bearing 12. When the rotary connecting member 113 is a gear, the slewing bearing 12 can be an outer-toothed slewing bearing 12 or an inner-toothed slewing bearing 12, for example, the rotary connecting member 113 with a gear structure is meshed with an outer ring (i.e., a second rotating part 122 shown in fig. 7) with a gear of the outer-toothed slewing bearing 12, the outer-toothed slewing bearing 12 is fixed on the discharge hopper 20 as a first rotating part 121 of the inner ring, the slewing mounting structure 30 is fixed on the second rotating part 122, the second rotating part 122 of the slewing bearing 12 is driven to rotate when the rotary connecting member 113 with the gear structure rotates, and the second rotating part 122 is fixedly connected with the slewing mounting structure 30 to rotatably mount the slewing mounting structure 30 on the discharge hopper 20, so that the slewing bearing 12 can drive the slewing mounting structure 30 to perform revolution rotation, and the slewing mounting structure 30 drives the material conveying structure 40 to uniformly discharge materials in different directions in the silo 02 from the discharge hopper 20, and the materials in the silo 02 cannot be discharged incompletely or even accumulated in a large amount on one side.

In the embodiment of the present invention, the oil path connection assembly further includes a hydraulic rotary seal joint 14, the rotation driving mechanism includes a hydraulic motor 16, the hydraulic motor 16 is connected to the hydraulic pump 172 through the hydraulic rotary seal joint 14, one end of the hydraulic rotary seal joint 14 may be fixed in the discharge hopper 20 through a joint mounting bracket 15 pre-installed in the discharge hopper 20, one end side of the discharge hopper is provided with an oil path introduction hole 21, a connection pipeline led out from the hydraulic control valve block passes through the oil path introduction hole 21 to be connected to one end of the hydraulic rotary seal joint 14 fixed on the joint mounting bracket 15, the hydraulic rotary seal joint 14 is connected to the hydraulic motor 16, so that the hydraulic motor 16 is connected to the hydraulic pump 172 through the hydraulic rotary seal joint 14, and this connection manner can ensure that the oil path connection assembly does not wind when the hydraulic motor 16 rotates along with the rotation mounting structure 30, and ensure that the entire structure can perform revolution rotation without hindrance. The hydraulic motor 16 is fixed on the rotary mounting structure 30, an output shaft of the hydraulic motor 16 is connected with the material conveying structure 40, the hydraulic motor 16 drives the material conveying structure 40 to convey materials towards the rotary mounting structure 30, and the rotary mounting structure 30 can rotate in a revolution manner under the action of the revolution driving mechanism, so that the rotary mounting structure 30 can drive the material conveying structure 40 to rotate in a revolution manner, and the material conveying structure 40 can convey materials in different directions towards the rotary mounting structure 30.

In some embodiments of the present invention, the pivotal mounting structure 30 includes a gland 31 and a material recovery bin 32, the gland 31 is fixed at one end of the material recovery bin 32, and the other end of the material recovery bin 32 is rotatably mounted on the discharge hopper 20 through an orbiting driving mechanism, as shown in fig. 6 and 7, when the turntable bearing 12 is an outer-toothed bearing, the lower end of the material recovery bin 32 can be fixedly connected to the second rotating portion 122 of the outer-toothed turntable bearing 12. Hydraulic motor 16 is fixed in material recovery storehouse 32 internally through gland 31, and hydraulic motor 16 fixes the terminal surface at gland 31 inside towards material recovery storehouse 32 promptly, and one side of the relative hydraulic motor 16's of material recovery storehouse 32 output shaft is provided with pan feeding mouth 321, and the one end of material conveying structure 40 gets into material recovery storehouse 32 along pan feeding mouth 321 to with hydraulic motor 16's output shaft fixed connection. Wherein, material conveying structure 40 includes the screw transport structure, and the screw transport structure includes screw axis 41 and the spiral 42 of unloading, and the spiral 42 of unloading is for being the heliciform around fixing the sand grip on screw axis 41, and screw axis 41 one end and hydraulic motor 16's output shaft fixed connection, for the transportation assembly, still can set up the screw transport structure by stage, assembles each section as an organic whole again during the use.

Specifically, the discharging machine 01 further includes a fixed mounting frame 13, as shown in fig. 8 and 9, the fixed mounting frame 13 includes a first mounting frame plate 131 and a second mounting frame plate 132, through holes are respectively formed in the middle portions of the first mounting frame plate 131 and the second mounting frame plate 132, the first mounting frame plate 131 is movably sleeved on the lower end of the material recycling bin 32 of the revolving mounting structure 30 to ensure that the material recycling bin 32 does not interfere with the material recycling bin when rotating, the second mounting frame plate 132 is fixed on the discharging hopper 20, a connection space (as shown in fig. 1) for the turntable bearing 12 and the revolving drive module 11 is reserved between the first mounting frame plate 131 and the second mounting frame plate 132, specifically, a mounting hole 1321 is formed in the second mounting frame plate 132, and when the rotary connector 113 is configured as a pinion as shown in fig. 4, and in the revolving drive module 11, the rotary connector 113 connected to the revolving drive motor 111 passes through the mounting hole 1321 and is engaged with the second mounting frame plate 122 of the outer gear bearing 12, and the revolving drive motor 111 is fixed to the second mounting frame plate 132 through the fixing member 112 arranged thereon. In practical use, in order to avoid interference and even damage of external environmental factors to the rotation power between the turntable bearing 12 and the rotary connecting member 113, a surrounding plate 133 may be provided to surround and fix the edge between the first mounting frame plate 131 and the second mounting frame plate 132 as a whole (as shown in fig. 12).

In a second embodiment of the present invention, there is provided a silo 02, as shown in fig. 11 and 12, the bottom of the silo 02 is provided with the unloader 01 according to the first embodiment of the present invention. This unloader 01 has adopted the modularized design, and convenient transportation, easily equipment and maintenance volume are minimum, and main module includes power device 10, discharge hopper 20, gyration mounting structure 30 and material transport structure 40.

The power device 10 comprises a revolution driving mechanism, a rotation driving mechanism and a hydraulic station as a driving source 17, wherein the hydraulic station comprises a driving motor 171 and a hydraulic module, the hydraulic module comprises a hydraulic oil tank 174, a hydraulic pump 172, a coupler 173, a hydraulic oil air cooler 175 and an oil circuit connecting assembly, the hydraulic oil tank 174 is connected with the hydraulic pump 172, the driving motor 171 is an electric driving motor, the driving motor 171 is connected with the hydraulic pump 172 through the coupler 173 to provide kinetic energy for the hydraulic pump 172, the oil circuit connecting assembly comprises a connecting pipeline for the circulation of hydraulic oil, a hydraulic control valve block and the like, the hydraulic control valve block controls the pressure, the flow rate and the flow direction of hydraulic oil fluid in the hydraulic driving source 17, so that the requirements of executing components such as the revolution driving mechanism and the rotation driving mechanism for executing different rotation actions are met, and the revolution driving mechanism and the rotation driving mechanism are both connected with the hydraulic pump 172 through the oil circuit connecting assembly, so as to provide driving energy for a power system of the whole discharging machine 01. A hydraulic oil air cooler 175 is disposed in the hydraulic oil circuit between the hydraulic pump 172 and the hydraulic oil tank 174, and the high temperature oil in the hydraulic system flows through the hydraulic oil air cooler 175, and the temperature of the oil is reduced to the working temperature by the hydraulic oil air cooler 175 to ensure that the hydraulic pump 172 can continuously perform normal operation. The hydraulic station provides hydraulic driving force for the revolution driving mechanism and the rotation driving mechanism.

When the unloader 01 is installed in the silo 02, the unloader 01 is fixed on the bottom plate 021 of the silo 02 through the fixed mounting frame 13, and the part of the unloader 01 above the first mounting frame plate 131 of the fixed mounting frame 13 is positioned in the silo 02, namely, the rotary mounting structure 30 provided with the material conveying structure 40 can rotate in the silo 02 without obstacles, and the part below the first mounting frame plate 131 is positioned in the unloading space below the bottom plate 021. In the embodiment of the invention, a plurality of first discharge pipes 03 are arranged on a bottom plate 021 of a silo 02, a second discharge pipe 04 is fixedly arranged below a discharge hopper 20 of a discharger 01, electric gate valves 05 are arranged on the first discharge pipe 03 and the second discharge pipe 04, materials can be ensured to fall from the first discharge pipe 03 and the second discharge pipe 04 to enter a designated area or a transport vehicle and the like by opening the electric gate valves 05, and the first discharge pipe 03 is used as a pipe for assisting in discharging in special and emergency situations.

The material conveying structure 40 is a screw conveying structure including a screw shaft 41 and a discharge screw 42. The unloader 01, after being actuated at the hydraulic station, provides high pressure to the hydraulic motor 16 of the material conveying structure 40, which then drives the screw conveying structure to rotate. While providing pressure to the revolution driving motor 111 to drive the entire revolution mounting structure 30 to rotate around the center, the screw conveying structure conveys the material to the material recovery bin 32 of the revolution mounting structure 30 and then falls from the second discharge pipe 04.

It can be seen that the unloader 01 provided by the embodiment of the present invention can rotate in a revolution of three hundred and sixty degrees, and simultaneously, the material conveying structure 40 conveys the material toward the direction of the rotary mounting structure 30 under the action of the rotation driving mechanism so as to discharge the material from the discharge hopper 20, thereby ensuring that the material in the silo 02 can be smoothly discharged, and the unloader 01 adopts a modular design and a modular assembly mode, and has the advantages of easy installation, convenient use, extremely small maintenance amount, and simple maintenance.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An unloader, characterized by comprising:

the power device (10), the said power device (10) includes the revolution driving mechanism and rotation driving mechanism;

a discharge hopper (20);

a swivel mounting structure (30), said swivel mounting structure (30) rotatably mounted on said discharge hopper (20) by said orbital drive mechanism;

the material conveying structure (40) is rotatably arranged on the rotary mounting structure (30) through the autorotation driving mechanism, and the material conveying structure (40) conveys materials towards the rotary mounting structure (30) so as to discharge the materials from the discharge hopper (20).

2. The unloader of claim 1, wherein the revolving drive mechanism comprises:

the revolution driving module (11), the said revolution driving module (11) is fixed on the said discharge hopper (20);

the turntable bearing (12), the turntable bearing (12) is rotatably connected with the revolution driving module (11), and the turntable bearing (12) rotatably installs the rotary installation structure (30) on the discharging hopper (20).

3. The unloader of claim 1, wherein the orbital drive mechanism comprises:

the revolution driving module (11), the revolution driving module (11) is fixed on the discharge hopper (20);

a slewing bearing (12), the slewing bearing (12) comprising a first rotating part (121) and a second rotating part (122), the first rotating part (121) being rotatably connected with the second rotating part (122);

one of the first rotary part (121) and the second rotary part (122) is fixedly mounted on the discharge hopper (20);

the other of the first rotating part (121) and the second rotating part (122) is rotatably connected with the revolution driving module (11), and the other of the first rotating part and the second rotating part is also fixedly connected with the revolution mounting structure (30).

4. Unloader according to claim 2 or 3, wherein the revolving drive module (11) comprises:

a revolution driving motor (111);

the fixing piece (112) is fixed on the revolution driving motor (111) and used for fixing the revolution driving motor (111) on the discharging hopper (20);

and the rotary connecting piece (113), the rotary connecting piece (113) is fixedly connected with an output shaft of the revolution driving motor (111), and the rotary connecting piece (113) is rotatably connected with the turntable bearing (12).

5. Unloader according to claim 1, further comprising:

the revolution driving mechanism is fixed on the discharge hopper (20) through the fixed mounting frame (13).

6. Unloader according to claim 1, wherein the power unit (10) further comprises:

a drive source (17), the drive source (17) comprising a drive motor (171) and a hydraulic module;

the hydraulic module comprises a hydraulic oil tank (174), a hydraulic pump (172), a coupler (173) and an oil way connecting assembly, the hydraulic oil tank (174) is connected with the hydraulic pump (172), a driving motor (171) is connected with the hydraulic pump (172), a revolution driving mechanism and a rotation driving mechanism are connected with the hydraulic pump (172).

7. Unloader according to claim 6, wherein the oil connection assembly comprises a hydraulic rotary sealing joint (14), the rotation drive mechanism comprising:

the hydraulic motor (16), the hydraulic motor (16) is connected with the hydraulic pump (172) through the hydraulic rotary sealing joint (14);

the hydraulic motor (16) is fixed on the rotary mounting structure (30), an output shaft of the hydraulic motor (16) is connected with the material conveying structure (40), and the hydraulic motor (16) drives the material conveying structure (40) to convey the material to the rotary mounting structure (30).

8. Unloader according to claim 7, wherein the swivel mounting structure (30) comprises:

a seal gland (31);

the material recovery bin (32), the sealing gland (31) is fixed at one end of the material recovery bin (32), and the other end of the material recovery bin (32) is rotatably arranged on the discharge hopper (20) through the revolution driving mechanism;

the hydraulic motor (16) is fixed in the material recovery bin (32) through the sealing gland (31), and a feeding port (321) is formed in one side, opposite to an output shaft of the hydraulic motor (16), of the material recovery bin (32);

one end of the material conveying structure (40) enters the material recovery bin (32) along the feeding port (321) and is fixedly connected with an output shaft of the hydraulic motor (16).

9. Unloader according to claim 7 or 8, wherein the material conveying structure (40) comprises:

the spiral conveying structure comprises a spiral shaft (41) and a discharging spiral (42), the discharging spiral (42) is spirally fixed on a convex strip on the spiral shaft (41) in a surrounding mode, and one end of the spiral shaft (41) is fixedly connected with an output shaft of the hydraulic motor (16).

10. A silo characterized in that the bottom of the silo is provided with an unloader as claimed in any one of claims 1 to 9.