CN220787137U - Ladder stand device for dredging and loading belt bottom - Google Patents

Abstract

The utility model discloses a ladder stand device for dredging and loading a belt bottom, which comprises: the device comprises a travelling mechanism, a feeding mechanism, a transferring mechanism and a dredging mechanism. In this scheme, collect feed mechanism through the buggy granule of desilting mechanism with the belt below to transfer to transport mechanism through feed mechanism, transport mechanism transfers buggy granule to fourth position and handles, and running gear can transfer the aforesaid part to belt conveyor's different positions, and then cleans comprehensively belt conveyor's below.

Description

Ladder stand device for dredging and loading belt bottom

Technical Field

The utility model relates to the technical field of mining equipment, in particular to a ladder stand device for dredging and loading a belt bottom.

Background

The belt conveyor is the main transportation equipment of the coal mine, and the coal dust falls on the top surface of the conveyor belt and is transferred along with the rotation of the conveyor belt. Belt sweepers for cleaning pulverized coal residues are usually arranged on the conveyor belt, but part of pulverized coal particles return together with the belt because the abrasion of the belt sweepers is not compensated correspondingly. Under the interference of factors such as conveyor belt vibration, coal dust particles can be separated from the belt and scattered below the belt conveyor. Along with the continuous operation time of the belt conveyor, a large amount of coal dust particles are accumulated below the belt conveyor, and the normal operation of the equipment is affected.

Disclosure of Invention

In view of the above, the utility model provides a ladder stand device for dredging and loading a belt bottom, wherein pulverized coal particles below the belt can be collected in a centralized manner by a dredging mechanism and transferred to a transfer mechanism by the feeding mechanism, the transfer mechanism transfers the pulverized coal particles to a fourth position for treatment, and the travelling mechanism can transfer the components to different positions of a belt conveyor so as to comprehensively clean the lower part of the belt conveyor.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a ladder stand device for dredging and loading a belt bottom, comprising:

the travelling mechanism comprises a frame and a crawler belt used for bearing and driving the frame to move;

the feeding mechanism comprises a feeding belt which is fixed with the frame and used for lifting materials at a first position to a third position, and a lifting assembly which is used for conveying one end of the feeding belt from a second position to the first position, wherein the first position is positioned outside the frame, the second position is positioned in the frame, and the third position is positioned in the frame;

the transfer mechanism comprises a transfer belt which is fixed with the frame and used for transferring the material from the third position to the fourth position, and an extension assembly which is used for extending one end of the transfer belt to the fourth position;

the dredging mechanism comprises a cleaning component for scraping and brushing materials and a dredging adjusting component which is fixed with the frame and used for transferring the cleaning component to the first position.

Preferably, the feeding mechanism comprises feeding rollers respectively rotatably connected to the second position and the third position, the lifting assembly comprises a transition roller rotatably connected between the two feeding rollers, and a lifter for transferring one feeding roller from the second position to the first position, and the transition roller always tightens the feeding belt.

Preferably, the transfer mechanism comprises a transfer roller rotatably connected to the end of the transfer belt, and the extension assembly comprises a transfer telescopic device for transferring a transfer roller from the third position to the fourth position, a tensioning roller abutted against the transfer belt between the two transfer rollers, and a tensioner for transferring the tensioning roller to a position capable of abutting the transfer belt.

Preferably, the transfer mechanism further comprises a support assembly laid below the transfer belt, the support assembly comprises a plurality of support plates distributed along the length direction of the transfer belt and a connecting rod fixed between two adjacent support plates, and the connecting rod is connected with the support plates in a sliding manner along the length direction of the transfer belt and always keeps connection with the support plates.

Preferably, the transfer mechanism further comprises a support bar fixed to the transfer roller and adapted to support the transfer roller in the fourth position.

Preferably, the dredging adjusting assembly comprises an end rotary table for driving the cleaning assembly to rotate along a first axis, a middle lifting arm for driving the end rotary table to lift, and a bottom rotary table for driving the middle lifting arm to rotate along a second axis, wherein an included angle between a rotation axis of the cleaning assembly and the first axis is set when the cleaning assembly works.

Preferably, the cleaning assembly comprises a roller brush and a drive for driving the roller brush in rotation about a third axis, the third axis being perpendicular to the second axis and to the first axis, the first axis being perpendicular to the second axis.

Preferably, a flow guiding structure is arranged on the frame and is positioned below the feeding belt and the transferring belt, and the flow guiding structure is used for guiding materials falling from the feeding belt and/or the transferring belt to the outside of the frame.

Preferably, the feeding belt extends from the middle part of one end of the frame, and the frame is provided with an avoidance opening for the feeding belt to extend.

Preferably, the track comprises a rubber track.

According to the technical scheme, the ladder stand device for dredging and loading the belt bottom provided by the utility model has the advantages that the coal dust particles below the belt are collected in the feeding mechanism through the dredging mechanism, lifted through the feeding mechanism and transferred to the transfer mechanism above the frame, the transfer mechanism further transfers the coal dust particles to the fourth position far away from the belt conveyor for treatment, and the travelling mechanism can transfer the components to different positions of the belt conveyor, so that the lower part of the belt conveyor is comprehensively cleaned.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a ladder stand apparatus for dredging and loading a belt bottom according to an exemplary embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1, shown in accordance with an exemplary embodiment;

FIG. 3 is an enlarged view of portion B of FIG. 1, shown in accordance with an exemplary embodiment;

FIG. 4 is a schematic diagram illustrating a structure representing a support assembly, according to an exemplary embodiment;

fig. 5 is a schematic view showing a connection structure of a driver and a roll brush according to an exemplary embodiment.

Reference numerals:

1. a walking mechanism; 11. a track; 12. a frame; 13. a flow guiding structure; 14. a diversion inclined plane; 15. a support frame; 2. a feeding mechanism; 21. a lifting assembly; 211. a transition roller; 212. a lifter; 22. a feeding belt; 23. a feeding roller; 3. a dredging mechanism; 31. a dredging adjusting component; 311. an end turn table; 312. a middle lifting arm; 313. a bottom turntable; 32. cleaning the assembly; 321. a driver; 322. a rolling brush; 323. a nut; 324. a connecting shaft; 325. a spline; 4. a transfer mechanism; 41. a transfer belt; 42. a transfer roller; 43. a support rod; 44. an extension assembly; 441. a transfer expansion device; 442. a tensioner; 443. a tension roller; 45. a support assembly; 451. a connecting rod; 452. and a support plate.

Detailed Description

The utility model discloses a ladder stand device for dredging and loading a belt bottom, wherein coal dust particles below the belt can be collected in a centralized manner by a dredging mechanism and transferred to a transfer mechanism by the feeding mechanism, the transfer mechanism transfers the coal dust particles to a fourth position for treatment, and the travelling mechanism can transfer the components to different positions of a belt conveyor so as to comprehensively clean the lower part of the belt conveyor.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In an exemplary embodiment of the present disclosure, a ladder stand device for dredging and loading a belt bottom is provided, as shown in fig. 1, fig. 1 is a schematic structural diagram of a ladder stand device for dredging and loading a belt bottom according to an exemplary embodiment; FIG. 2 is an enlarged view of portion A of FIG. 1, shown in accordance with an exemplary embodiment; FIG. 3 is an enlarged view of portion B of FIG. 1, shown in accordance with an exemplary embodiment; FIG. 4 is a schematic diagram illustrating a structure representing a support assembly, according to an exemplary embodiment; fig. 5 is a schematic view showing a connection structure of a driver and a roll brush according to an exemplary embodiment. The following is explained in connection with fig. 1 to 5.

The following description is given for the purpose of facilitating understanding of the present embodiment by those skilled in the art, and is not intended to limit the scope of the present utility model to the particular embodiments described below.

Referring to fig. 1, a ladder stand device for dredging and loading a belt bottom according to an exemplary embodiment of the present disclosure includes:

the travelling mechanism 1 comprises a frame 12 and a crawler belt 11 for carrying and driving the frame 12 to move.

The feeding mechanism 2 comprises a feeding belt 22 fixed with the frame 12 and used for lifting materials at a first position to a third position, and a lifting assembly 21 used for conveying one end of the feeding belt 22 from a second position to the first position, wherein the first position is located outside the frame 12, the second position is located inside the frame 12, and the third position is located inside the frame 12.

The transfer mechanism 4 comprises a transfer belt 41 fixed with the frame 12 and used for transferring the material from the third position to the fourth position, and an extension assembly 44 used for extending one end of the transfer belt 41 to the fourth position.

The dredging mechanism 3 comprises a cleaning assembly 32 for scraping and brushing materials and a dredging adjusting assembly 31 which is fixed with the frame 12 and used for transferring the cleaning assembly 32 to a first position.

For example, referring to fig. 1 and 2, the crawler belt 11 is connected to the lower portion of the frame 12 and supports the frame 12, so that the frame 12 forms a horizontally disposed carrying platform, for example, a rubber crawler belt and a related driving structure are selected to move the frame 12. The frame 12 is fixedly connected with a plurality of vertically arranged supporting frames 15, and a plurality of connecting positions for fixedly connecting with other components are arranged. The length of the supporting frames 15 is different, such as the feeding belt 22 is fixed on the frame 12 through four supporting frames 15, two groups of four supporting frames 15 are distributed along the length direction of the frame 12, wherein the height of one group of supporting frames 15 is higher than that of the other group of frame 12, the feeding belt 22 supported and fixed on the frame 12 by the two groups of supporting frames 15 is in an inclined posture, one end of the feeding belt 22 extends to the upper side inside the frame 12, and the other end extends to the lower side outside the head of the frame 12.

Referring to fig. 1 and 2, the lifting assembly 21 is fixedly connected to a connection position on the head end side of the frame 12 and is connected to the feeding belt 22. The higher end of the feeding belt 22 is fixed and positioned at a third position; when the lifting assembly 21 is stopped, the lower end of the feeding belt 22 is positioned at the head of the frame 12 and within the outline range of the frame 12; when the lifting assembly 21 works and drives the lower end of the feeding belt 22 to move downwards to the maximum stroke, the lower end of the feeding belt 22 is located below the outer side of the head of the frame 12, the feeding belt 22 extends out of the middle of one end of the head of the frame 12, an avoidance opening for the feeding belt 22 to extend out is formed in the frame 12, the bottom edge of the feeding belt 22 is flush with the bottom edge of the crawler belt 11, and at the moment, the lower end of the feeding belt 22 is located at the first position.

Referring to fig. 1 and 3, the transfer belt 41 is fixed on the frame 12 through the supporting frame 15, two ends of the transfer belt 41 are respectively located at two sides of the third position, that is, a part of conveying entities on the transfer belt 41 passes below the third position, and materials lifted to the third position on the feeding belt 22 can directly fall onto the transfer belt 41 and are transferred to the fourth position under the conveying of the transfer belt 41. The extension assembly 44 is fixed on the support frame 15 connected with the transfer belt 41, the extension assembly 44 comprises a power output end, the power output end is connected with one end of the transfer belt 41 and drives the one end of the transfer belt 41 to extend to the outside of the side edge of the frame 12, and the fourth position is located on the outer side of the frame 12.

Referring to fig. 1 and 2, the dredging adjusting assembly 31 is fixed at the head of the frame 12 and is separately arranged at two sides of the lifting assembly 21 opposite to the head of the frame 12, one end of the dredging adjusting assembly 31 is fixed with the frame 12, the other end forms a power output end, the cleaning assembly 32 is fixedly connected with the power output end of the dredging adjusting assembly 31, and the cleaning assembly 32 can move from the second position to the first position under the driving of the dredging adjusting assembly 31.

In this embodiment, collect feed mechanism 2 is concentrated to the buggy granule below the belt through desilting mechanism 3 to through feed mechanism 2 lifting and transfer to the transport mechanism 4 of frame 12 top, transport mechanism 4 then further transfers the buggy granule to the fourth position of keeping away from belt conveyor and handle, running gear 1 can transfer the aforesaid part to belt conveyor's different positions, and then clean comprehensively to belt conveyor's below.

In an exemplary embodiment of the present disclosure, referring to fig. 1 and 2, the feeding mechanism 2 includes feeding rollers 23 rotatably connected to a second position and a third position, respectively, and the lifting assembly 21 includes a transition roller 211 rotatably connected between the two feeding rollers 23, and a lifter 212 for transferring one feeding roller 23 from the second position to the first position, the transition roller 211 always tensioning the feeding belt 22.

For example, referring to fig. 1, two feeding rollers 23 are rotatably connected to the second position and the third position, the rotation axes of the two feeding rollers 23 are all horizontally arranged, the feeding roller 23 located at the third position is fixed above the frame 12 through the supporting frame 15, the feeding roller 23 located at the second position is fixed on the lifter 212, and the transition roller 211 is rotatably connected between the two feeding rollers 23 and is fixed on the frame 12 through the supporting frame 15.

In this embodiment, referring to fig. 2, the lifter 212 includes a low-speed torque motor fixedly connected to the headstock of the frame 12 and a rotating rod fixedly connected to the power output end of the low-speed torque motor, one end of the rotating rod is fixedly connected to the low-speed torque motor, the other end of the rotating rod is rotatably connected to a feeding roller 23, and the rotation axis of the feeding roller 23 is parallel to the rotation axis of the power output end of the low-speed torque motor.

When one end of the feeding belt 22 is required to move from the second position to the first position through the lifting assembly 21, so that the material at the first position is transferred to the third position through the feeding belt 22, the rotating rod is driven to rotate through the low-speed torque motor, and then the feeding roller 23 at the second position is driven to rotate by taking the output shaft of the low-speed torque motor as an axis, and the feeding roller is lowered in height in the rotating process, and moves from the second position to the first position. During the movement of the feeding roller 23, the transition roller 211 always abuts against the feeding belt 22, so that the feeding belt 22 can displace relative to the feeding roller 23 and the transition roller 211, and the feeding belt 22 is still tensioned after the feeding roller 23 moves from the second position to the first position.

In an exemplary embodiment of the present disclosure, referring to fig. 1 and 3, the transfer mechanism 4 includes a transfer roller 42 rotatably connected to an end of a transfer belt 41, and the extension assembly 44 includes a transfer retractor 441 for transferring one transfer roller 42 from a third position to a fourth position, a tension roller 443 abutted on the transfer belt 41 between the two transfer rollers 42, and a tensioner 442 for transferring the tension roller 443 to a position capable of abutting the transfer belt 41.

For example, referring to fig. 1 and 3, the transfer jack 441 is fixed above the frame 12 by the support frame 15, and the power output end of the transfer jack 441 is disposed toward the fourth position. The two transfer rollers 42 are arranged, one transfer roller 42 is rotatably connected above the frame 12 through the support frame 15, the other transfer roller 42 is rotatably connected to the power output end of the transfer telescopic device 441, and the rotation axes of the two transfer rollers 42 are parallel to each other and are horizontally arranged. The tensioner 442 is fixed above the frame 12 by the support frame 15, the power output end of the tensioner 442 is vertically arranged downwards towards the frame 12, the tensioning roller 443 is rotatably connected to the power output end of the tensioner 442, and the tensioning roller 443 and the two transfer rollers 42 simultaneously tension the transfer belt 41.

In this embodiment, when the material is required to be transferred from the third position to the fourth position by the transferring mechanism 4, the power output end of the transferring telescopic device 441 drives one transferring roller 42 to move toward the fourth position, and the power output end of the tensioner 442 drives the tensioning roller 443 to move vertically upward, so that the end of the transferring belt 41 facing the fourth position can approach the fourth position along with the transferring roller 42 and extend to the fourth position, and then the material is transferred from the third position to the fourth position. Because of the non-stationarity of the fourth position, in actual operation, the travel of the extension assembly 44 and the tensioner 442 can be adjusted according to the distance between the fourth position and the frame 12, so as to meet the transfer of materials under different conditions, and the transfer belt 41 can be reduced by contracting the transfer telescopic device 441 to the minimum travel and reducing the length of the transfer belt 41 extending out of the frame 12 in combination with the extension of the tensioner 442 to the maximum travel, so as to meet the purpose of advancing the frame 12 in a narrow roadway.

In this embodiment, the transferring telescopic device 441 and the tensioner 442 are all hydraulic cylinders fixedly connected to the supporting frame 15, and the piston rods of the hydraulic cylinders drive the tensioning roller 443 and the transferring roller 42 to move, so as to realize the change of the conveying length of the transferring belt 41.

In an exemplary embodiment of the present disclosure, referring to fig. 3 and 4, the transfer mechanism 4 further includes a support assembly 45 laid under the transfer belt 41, the support assembly 45 includes a plurality of support plates 452 distributed along the length direction of the transfer belt 41, and a connecting rod 451 fixed between two adjacent support plates 452, and the connecting rod 451 is slidably connected with the support plates 452 along the length direction of the transfer belt 41 and always keeps being connected with the support plates 452.

For example, referring to fig. 3 and 4, the support plates 452 are plural and extend along the conveying direction of the transfer belt 41, and the support plates 452 are located inside the space formed by the transfer belt 41 in a surrounding manner and support the conveyor belt with a higher position, so that the possibility of deformation of the conveyor belt due to the pressure of the material is reduced. The support plate 452 that is located third position department passes through support frame 15 and frame 12 fixed connection, connecting rod 451 fixed connection is in the lateral wall of support plate 452 towards the fourth position, and all be fixed with two connecting rods 451 on the lateral wall of each support plate 452, the one end and the support plate 452 fixed connection of connecting rod 451, the other end is the expanded footpath form setting, the spout (not shown in the figure) with connecting rod 451 adaptation has been seted up to inside the support plate 452, and the opening of this spout is the reducing setting with the expanded footpath end adaptation of connecting rod 451, the nearest support plate 452 of fourth position is with extension subassembly 44 fixed connection, and the synchronous motion is done in the extension or the shortening of the power take off of extension subassembly 44.

In this embodiment, when the conveying length of the transfer belt 41 is changed by the extension assembly 44 and the tensioner 442, the support plates 452 can move synchronously with the end of the transfer belt 41 towards the fourth position, and the other support plates 452 are driven to move one by the movement of the support plate 452 nearest to the fourth position under the action of the connecting rod 451, that is, when the conveying length of the transfer belt 41 is extended to the maximum extent, the support plates 452 can be distributed under the top transfer portion of the transfer belt 41 at equal intervals, so as to provide effective support for the portion of the transfer belt 41.

In an exemplary embodiment of the present disclosure, referring to fig. 3 and 4, the transfer mechanism 4 further includes a support bar 43 fixed to the transfer roller 42 and for supporting the transfer roller 42 in the fourth position.

For example, referring to fig. 3 and 4, one end of the supporting rod 43 is rotatably connected to the feeding roller 23, and the supporting rod 43 is driven by the extension assembly 44 to approach or separate from the fourth position along with the feeding roller 23. When the feeding roller 23 is close to the fourth position, the movable end of the supporting rod 43 is supported on the external platform by rotating the supporting rod 43, so that effective support can be provided for the transfer belt 41 through the supporting rod 43, and the possibility that the transfer belt 41 is deformed or the frame 12 is laterally turned over due to the influence of material conveying is reduced.

In an exemplary embodiment of the present disclosure, referring to fig. 1 and 2, the dredging adjustment assembly 31 includes an end turntable 311 for driving the cleaning assembly 32 to rotate on a first axis, a middle lifting arm 312 for driving the end turntable 311 to lift, and a bottom turntable 313 for driving the middle lifting arm 312 to rotate on a second axis, and the rotation axis of the cleaning assembly 32 is set at an angle with the first axis during operation.

Illustratively, referring to fig. 1 and 2, the bottom turntable 313 is secured to the frame 12, the middle lift arm 312 is secured to the power output end of the bottom turntable 313, the end turntable 311 is secured to the power output end of the middle lift arm 312, and the cleaning assembly 32 is secured to the power output end of the end turntable 311.

In this embodiment, referring to fig. 2 and 5, the cleaning assembly 32 includes a roller brush 322 and a driver 321 for driving the roller brush 322 to rotate along a third axis, the driver 321 has a connecting shaft 324, a spline 325 is fixed on the connecting shaft 324, the roller brush 322 is sleeved on the connecting shaft 324 and rotates synchronously with the connecting shaft 324 through the spline 325, and a nut 323 is screwed on an end portion of the connecting shaft 324 for fixing the roller brush 322 and limiting the circumferential movement of the roller brush 322 on the connecting shaft 324.

Wherein the rotation axis of the power output end of the bottom turntable 313 is vertically disposed, the rotation axis of the power output end of the middle lifting arm 312 is horizontally disposed, and the rotation axis of the end state is horizontally disposed and perpendicular to the rotation axis of the power output end of the middle lifting arm 312. The axis of rotation of the power take-off of the drive 321 is parallel to the axis of rotation of the power take-off of the intermediate lifting arm 312.

In an exemplary embodiment of the present disclosure, referring to fig. 1, a guiding structure 13 is disposed on a frame 12, the guiding structure 13 is located below a feeding belt 22 and a transferring belt 41, and the guiding structure 13 is used for guiding materials falling from the feeding belt 22 and/or the transferring belt 41 to outside the frame 12.

For example, referring to fig. 1, the top surface of the frame 12 protrudes upward to form a diversion slope 14 disposed on two sides below the third position, the bottom edge of the diversion slope 14 extends to the edge of the frame 12, the top edge of the diversion slope 14 meets below the transfer belt 41, and the two diversion slopes 14 together drive the diversion structure 13.

The material falls into the transfer belt 41 under the action of dead weight after being transferred from the feeding belt 22 to the third position, the material possibly leaks from the end part of the feeding belt 22 or the side edge of the transfer belt 41 in the process of transferring the material from the feeding belt 22 to the transfer belt 41, the fallen material can be received by the diversion inclined plane 14 and slides out of the frame 12 along the extending direction of the diversion inclined plane 14 under the action of dead weight, and the load of the frame 12 is reduced.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a cat ladder device of belt end desilting and loading which characterized in that includes:

the walking mechanism (1) comprises a frame (12) and a crawler belt (11) for carrying and driving the frame (12) to move;

the feeding mechanism (2) comprises a feeding belt (22) which is fixed with the frame (12) and used for lifting materials at a first position to a third position, and a lifting assembly (21) which is used for conveying one end of the feeding belt (22) from a second position to the first position, wherein the first position is positioned outside the frame (12), the second position is positioned in the frame (12), and the third position is positioned in the frame (12);

a transfer mechanism (4) comprising a transfer belt (41) fixed with the frame (12) and used for transferring the material from the third position to a fourth position, and an extension assembly (44) used for extending one end of the transfer belt (41) to the fourth position;

the dredging mechanism (3) comprises a cleaning assembly (32) for scraping and brushing materials and a dredging adjusting assembly (31) which is fixed with the frame (12) and used for moving the cleaning assembly (32) to the first position.

2. The belt bottom dredging and loading ladder device according to claim 1, characterized in that the feeding mechanism (2) comprises feeding rollers (23) rotatably connected to the second position and the third position, respectively, the lifting assembly (21) comprises a transition roller (211) rotatably connected between the two feeding rollers (23), and a lifter (212) for transferring one feeding roller (23) from the second position to the first position, the transition roller (211) always tensioning the feeding belt (22).

3. The belt bottom dredging and loading ladder device according to claim 1, characterized in that the transfer mechanism (4) comprises a transfer roller (42) rotatably connected to an end of the transfer belt (41), the extension assembly (44) comprising a transfer telescopic (441) for transferring a transfer roller (42) from the third position to the fourth position, a tensioning roller (443) abutting on the transfer belt (41) between two transfer rollers (42), and a tensioner (442) for transferring the tensioning roller (443) to a position abutting on the transfer belt (41).

4. A belt bottom dredging and loading ladder stand device according to claim 3, characterized in that the transfer mechanism (4) further comprises a support assembly (45) laid below the transfer belt (41), the support assembly (45) comprises a plurality of support plates (452) distributed along the length direction of the transfer belt (41) and connecting rods (451) fixed between two adjacent support plates (452), and the connecting rods (451) are slidingly connected with the support plates (452) along the length direction of the transfer belt (41) and always keep connection with the two support plates (452).

5. The belt bottom dredging and loading ladder stand device according to claim 4, characterized in that the transfer mechanism (4) further comprises a support bar (43) fixed to the transfer roller (42) and adapted to support the transfer roller (42) in the fourth position.

6. The belt bottom dredging and loading ladder stand device according to claim 1, characterized in that the dredging adjustment assembly (31) comprises an end turntable (311) for driving the cleaning assembly (32) to rotate on a first axis, a middle lifting arm (312) for driving the end turntable (311) to lift, and a bottom turntable (313) for driving the middle lifting arm (312) to rotate on a second axis, wherein the rotation axis of the cleaning assembly (32) is arranged at an included angle with the first axis during operation.

7. The belt bottom dredging and loading ladder assembly of claim 6, wherein the cleaning assembly (32) comprises a roller brush (322) and a drive (321) for driving the roller brush (322) to rotate about a third axis, the third axis being perpendicular to the second axis and to the first axis, the first axis being perpendicular to the second axis.

8. The belt bottom dredging and loading ladder stand device according to claim 1, characterized in that a flow guiding structure (13) is arranged on the frame (12), the flow guiding structure (13) is located below the feeding belt (22) and the transferring belt (41), and the flow guiding structure (13) is used for guiding materials falling from the feeding belt (22) and/or the transferring belt (41) to the outside of the frame (12).

9. The belt bottom dredging and loading ladder stand device according to claim 1, wherein the feeding belt (22) extends out from the middle of one end of the frame (12), and the frame (12) is provided with an avoidance opening for the feeding belt (22) to extend out.

10. The belt bottom dredging and loading ladder stand device according to claim 1, characterized in that the track (11) comprises a rubber track.