Inner wall cleaning device and method for coal bunker construction

Abstract

The invention relates to an inner wall cleaning device and method for coal bunker construction. The cleaning device comprises a base, a plurality of first telescopic cylinders, a plurality of traction machine assemblies, a rotating disc, a plurality of first arm rods fixed to the rotating disc and vertically extending downwards, and a lifting base matched with the first arm rods and oppositely arranged below the base. The two air pick assemblies are oppositely arranged in the radial direction and matched with the lifting base through sliding rail structures arranged in the radial direction, the second telescopic cylinder is fixedly arranged on the lifting base and can drive the two air pick assemblies to move, and the third telescopic cylinder is arranged on the base and can drive the lifting base to move. The free ends of the cables on the two traction machine assemblies are fixedly connected to the base and can lift the base to move in a lifting mode. The rotating disc is matched with the base in a pivoted mode, and a motor assembly capable of driving the rotating disc to rotate around the vertical axis is arranged on the base. The coal bunker cleaning device is beneficial to improving the working efficiency of coal bunker cleaning work and has good safety.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cleaning the inner wall of a coal bunker, and particularly relates to an inner wall cleaning device for coal bunker construction and a cleaning method. BACKGROUND

[0002] In a mine, an underground coal bunker is an important facility in production and transportation, which can ensure the normal operation between the transportation of a mining area and a main roadway, and plays a regulating role in the transportation process, which helps to improve the reliability of the underground coal transportation system. However, the raw coal stored in the coal bunker is easily adhered to the inner wall of the coal bunker, the discharge port of the coal bunker and other positions, which can reduce the volume of the coal bunker and even cause serious blockage in the coal bunker during use, due to the combined influence of various factors such as the moisture content, temperature fluctuation and storage time of the raw coal.

[0003] For the cleaning work of the coal blocks (also known as lumps) adhered to the inner wall of the underground coal bunker, for a long time, it has always been a complex and inefficient operation, and the main cleaning methods are manual cleaning and air cannon cleaning. Among them, the manual cleaning method obviously has defects such as long cleaning period, low cleaning efficiency, high labor intensity, high operation risk and the like; compared with manual cleaning, the air cannon cleaning method has significantly high efficiency, but it can only clean a few fixed positions, and there is a problem of improper installation, which may result in poor cleaning effect. SUMMARY

[0004] The present application provides an inner wall cleaning device for coal bunker construction and a cleaning method, which helps to improve the operation efficiency of coal bunker cleaning work and has good safety.

[0005] The technical solution adopted by the present application to solve the technical problem is: an inner wall cleaning device for coal bunker construction, comprising a base, a plurality of first telescopic cylinders arranged on the base at intervals around the circumference, a plurality of traction machine assemblies, a rotating disc, a plurality of arm rods one fixedly arranged on the rotating disc and vertically downwardly extending, a lifting seat oppositely arranged below the base and matched with the arm rods one through a vertically arranged slide rail structure, two wind pick assemblies oppositely arranged in the radial direction and respectively matched with the lifting seat through a radially arranged slide rail structure, a second telescopic cylinder fixedly arranged on the lifting seat and capable of driving the two wind pick assemblies to move along the radial direction relative to the lifting seat, and a third telescopic cylinder fixedly arranged on the base and capable of driving the lifting seat to move up and down.

[0006] A supporting leg is arranged at the end of the cylinder rod of the first telescopic cylinder. The supporting leg can be disc-shaped or long plate-shaped, and an elastic pad / layer is arranged on the end face of the free end of the supporting leg. The elastic pad can be a rubber pad. The supporting leg can reciprocate along the radial direction of the base with the telescopic movement of the cylinder rod of the first telescopic cylinder, thereby achieving the purpose of switching the base between the state of being fixed relative to the coal bunker and the state of being movable relative to the coal bunker in the vertical direction.

[0007] The free end of the cable of the traction machine assembly is fixedly connected to the base, and can lift and lower the base in the coal bunker. The main body of the traction machine assembly is arranged outside the upper port of the coal bunker, and can control the lifting and lowering of the base and the first telescopic cylinder, the turntable, the arm rod one, the lifting seat, the pick assembly, the second telescopic cylinder, the third telescopic cylinder and the like in the coal bunker.

[0008] The turntable is pivotally matched with the base, and a motor assembly for driving the turntable to rotate around the vertical axis is arranged on the base, thereby adjusting the positions of the two pick assemblies by driving the turntable to rotate.

[0009] Optionally, the base is annular. The outer circumferential surface of the turntable is formed as a gear surface, i.e. an external gear surface. The outer diameter of the turntable can be significantly smaller than the inner diameter of the base.

[0010] Two gantries are arranged on the upper part of the base in opposite radial directions, and a support cross plate is arranged between the upper parts of the two gantries. The turntable is pivotally matched with the support cross plate and is suspended at the upper port of the shaft hole of the base. The motor assembly is arranged on the gantry, and the gear at the output end of the motor assembly can engage with the gear surface on the turntable, thereby driving the turntable to rotate relative to the base around the vertical axis.

[0011] Optionally, a cylindrical seat one extending vertically downward is arranged on the lower end face of the support cross plate, and a pivot portion extending vertically upward is formed on the upper end face of the turntable. The upper part of the pivot portion extends into the cylindrical seat one, thereby establishing a pivot matching relationship with the support cross plate, so that the turntable can rotate relative to the support cross plate and is fixed at the upper port of the shaft hole of the base.

[0012] Optionally, the turntable is annular, and the pivot portion arranged thereon is a cylindrical portion coaxial with the turntable, and the inner diameters of the two can be the same. The third telescopic cylinder is fixedly arranged on the support cross plate. The push-pull cylinder rod of the third telescopic cylinder passes through the cylindrical seat one, the pivot portion, the turntable and the shaft hole of the base downward, and is pivotally matched with the lifting seat, so that the push-pull cylinder rod can rotate relative to the lifting seat and is fixed with the lifting seat.

[0013] Optionally, a cylindrical seat two vertically upwardly extending is formed on the upper portion of the lifting seat. The upper portion of the cylindrical seat two extends into the shaft hole of the base or upwardly beyond the shaft hole of the base and pivotally matches with the push-pull cylinder rod of the third telescopic cylinder, so that the push-pull cylinder rod can rotate relative to the cylindrical seat two and is fixed with the cylindrical seat two.

[0014] Optionally, a disc body is formed on the upper portion of the lifting seat and a plurality of arm rods two vertically upwardly extending are arranged on the disc body. The arm rod one and the arm rod two correspondingly match in pairs. A slide structure arranged along the vertical direction is formed on the arm rod one and a convex rail structure matching with the slide structure is formed on the outer wall of the arm rod two.

[0015] Optionally, the lifting seat is a U-shaped groove body, the second telescopic cylinder is fixed in the groove of the U-shaped groove body, and a convex rail is formed on the inner arms on both sides of the U-shaped groove body. Two wind pick assemblies are respectively fixed on one end of a long strip-shaped slide arm, and a groove structure corresponding to the convex rail is arranged on the slide arm. The other end of the slide arm extending into the U-shaped groove body is formed as a U-shaped structure, and the second telescopic cylinder is fixedly connected with the connecting plate of the U-shaped structure.

[0016] Optionally, a resilient pad is arranged on the free end face of the supporting leg, a plurality of grooves extending along the vertical direction are formed on the resilient pad, and the width of the grooves gradually decreases from top to bottom. Such design can better adapt the elastic deformation freedom of the resilient pad to the relatively rough surface of the inner wall of the coal bunker, so as to realize better pressure contact between the supporting leg and the inner wall of the coal bunker, and to make the fixing state of the base in the coal bunker more stable and safe. In addition, the groove structure can act with the protruding structure on the inner wall of the coal bunker when the base moves downward with a small amplitude in the coal bunker, to generate a large resistance to inhibit the downward sliding trend of the base, so as to ensure the stability, reliability and safety of the fixing of the base relative to the coal bunker.

[0017] Based on the above-mentioned cleaning method of the inner wall cleaning device for coal bunker construction, the following steps are included: 1) The base is hoisted above and into the coal bunker by the traction machine assembly; 2) The cylinder rod of the first telescopic cylinder is extended outward to make the supporting leg approach the inner wall of the coal bunker until the pressure contact is achieved, so that the base is fixed relative to the coal bunker; 3) The wind pick assembly is driven by the second telescopic cylinder to move relative to the lifting seat and gradually approach the inner wall of the coal bunker until the pick head of the wind pick assembly contacts the lump adhered to the coal bunker; 4) The wind pick assembly is started to make the pick head collide with the lump, and at the same time the lifting seat is moved along the vertical direction by the third telescopic cylinder to clean the lump on the inner wall of the coal bunker near the base; 5) after the lifting seat moves to the end of its stroke, the pick assembly is closed, and the pick assembly is moved back relative to the lifting seat by the second telescopic cylinder, and the lifting seat is moved back up by the third telescopic cylinder; 6) the rotating disc is driven to rotate to adjust the circumferential orientation of the pick assembly, and steps 3) to 5) are repeated until the entire circumferential surface of the coal bunker is cleaned; 7) the cylinder rod of the first telescopic cylinder is retracted to disengage the supporting leg from the inner wall of the coal bunker, and the base is lowered to a new height position by the traction machine assembly, and steps 2) to 6) are repeated until the entire inner wall of the coal bunker is cleaned.

[0018] The beneficial effects of the present application are: compared with the manual cleaning method, the present application can improve the work efficiency of the coal bunker cleaning work, reduce the labor intensity of workers, and has good operation safety; in addition, the present application can also realize comprehensive and sufficient cleaning of the agglomerates adhered to the wall, and improve the cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the overall structural state of the present application.

[0020] Figure 2 It is a schematic view of the overall structural state of the present application. Figure 1 It is a schematic view of the overall structural state of the present application.

[0021] Figure 3 It is a schematic view of the overall structural state of the present application.

[0022] Figure 4 It is a schematic view of the overall structural state of the present application.

[0023] Figure 5 It is a schematic view of the overall structural state of the present application.

[0024] In the figure: 10 base, 11 gantry, 12 supporting cross plate, 121 cylindrical seat one, 13 cable seat; 20 first telescopic cylinder, 21 supporting leg; 30 traction machine assembly, 31 cable; 40 rotating disc, 41 motor assembly, 42 pivot part; 50 arm one; 60 lifting seat, 61 arm two, 62 cylindrical seat two, 63 sliding arm, 64 radial arm; 70 pick assembly; 80 second telescopic cylinder; 90 third telescopic cylinder, 91 push-pull cylinder rod; 100 coal bunker, 101 agglomerate. DETAILED DESCRIPTION

[0025] The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical significance to limit the conditions that the application can be implemented. Any modification of the structure, change of the proportion relationship, or adjustment of the size, without affecting the effect and purpose that the application can produce, should still fall within the scope of the technology disclosed by the application. At the same time, the terms such as "upper", "lower", "front", "rear", "middle" and the like in the specification are only for the convenience of clear description, and are not used to limit the scope of the application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementation scope of the application.

[0026] As shown in Figures 1 to 5 A kind of inner wall cleaning device for coal bunker construction, including annular base 10, four first telescopic cylinders 20 being set on the base 10 around circumference, two traction machine assemblies 30, carousel 40, four arm rods one 50 being fixedly arranged on the carousel 40 and vertically extending downward, lifting seat 60 being oppositely arranged below the base 10 with the arm rod one 50 being matched by the slide rail structure being arranged in vertical direction, two wind pick total assembly 70 being oppositely arranged in radial direction (as shown in left and right oppositely arranged) and being matched with the lifting seat 60 by the slide rail structure being arranged in radial direction respectively, second telescopic cylinder 80 being fixedly arranged on the lifting seat 60 and can drive two wind pick total assembly 70 respectively moves along radial direction relative to the lifting seat 60, and third telescopic cylinder 90 being fixedly arranged on the base 10 and can drive the lifting seat 60 moves up and down.

[0027] Supporting leg 21 is arranged at the cylinder rod end of the first telescopic cylinder 20, and rubber pad / elastic pad is fixedly arranged on the free end face of the supporting leg 21, so that the free end face of the supporting leg 21 can be in contact with the inner wall of the coal bunker 100, so that the base 10 can be firmly and reliably fixed at a certain height position relative to the coal bunker 100.

[0028] The free end of the cable 31 of the traction machine assembly 30 is fixedly connected to the base 10, so that the two traction machine assemblies 30 can stably lift the base 10 together, and the base 10 (and the first telescopic cylinder 20, the rotating disc 40, the arm rod 50, the lifting seat 60, the ripper assembly 70, the second telescopic cylinder 80, the third telescopic cylinder 90, and all related accessories / components / structures, etc. fixedly arranged on the base 10, and simultaneously / synchronously) is hoisted into the coal bunker 100 and lifted in the coal bunker 100. Specifically, the upper part of the base 10 is provided with a cable seat 13 corresponding to the two cables 31 of the traction machine assembly 30, so that the free end of each cable 31 is fixedly connected to the two cable seats 13, as shown in Figure 1 , Figure 3 In addition, it should be noted that the specific structure of the traction machine assembly 30 can be achieved by referring to the prior art, such as the traction machine assembly for lifting the elevator car, so that the present application will not be described in detail.

[0029] The rotating disc 40 is pivotally matched with the base 10 and coaxially arranged relative to the base 10. The rotating disc 40 can be arranged at the upper end of the base 10 (shaft cavity), as shown in Figures 1 to 4 A motor assembly 41 is arranged on the base 10 and can drive the rotating disc 40 to rotate around the vertical axis. By the rotating action of the rotating disc 40, the lifting seat 60 fixedly arranged below the rotating disc 40 (specifically, arranged below the base 10) can be synchronously rotated, so that the two ripper assemblies 70 fixedly arranged on the lifting seat 60 can change the direction, and the clumps 101 adhered to different positions of the inner wall of the coal bunker 100 can be cleaned. At the same time, with the lifting movement of the lifting seat 60, the height position of the two ripper assemblies 70 can be changed, and the clumps 101 at different height positions of the coal bunker 100 can be cleaned.

[0030] The main body of the lifting seat 60 can be a rectangular frame structure or a rectangular seat plate structure. The second telescopic cylinder 80 fixedly arranged on the lifting seat 60 can be a single-rod telescopic cylinder structure or a double-rod telescopic cylinder structure, so that the second telescopic cylinder 80 can drive the ripper machine body part of the two ripper assemblies 70 to move relative to the lifting seat 60 along the left / right / radial direction, or can drive the ripper machine body part of the two ripper assemblies 70 to move relative to the lifting seat 60 along the left / right / radial direction at the same time. The ripper assembly 70 is a prior art device, and the specific structure thereof in the present application can be achieved by referring to the prior art, which will not be described in detail. However, it should be emphasized that the ripper machine body of the ripper assembly 70 is preferably arranged in an axial downward inclined manner, as shown inFigure 1 、 Figure 3 as shown.

[0031] Further emphasized: in the above-mentioned scheme, in addition to the main body of the two winch assemblies 30, the first telescopic cylinder 20, the rotating disc 40, the arm rod 50, the lifting seat 60, the pickaxe assembly 70, the second telescopic cylinder 80, the third telescopic cylinder 90, and the related accessories / components, mechanisms, etc. associated with each other are all arranged on the base 10 and can move synchronously with the base 10. Therefore, in the technical scheme of the present application, first, the base 10, etc. is hoisted to the upper side of the coal bunker 100 by means of the two winch assemblies 30, and then slowly lowered into the coal bunker 100; then the cylinder rod of the first telescopic cylinder 20 is driven to extend outward, so that the supporting leg 21 approaches the inner wall of the coal bunker 100 and can finally be in pressure contact with the inner wall of the coal bunker 100, thereby fixing the base 10 relative to the coal bunker 100, as shown in the state shown in Figure 3 During this period, the lump 101 on the inner wall of the coal bunker 100 near the relative height is cleaned by driving the lifting seat 60 to move in the vertical direction; after the lump 101 in the vertical stroke interval of the lifting seat 60 is cleaned, the (circumferential) orientation of the pickaxe assembly 70 is continuously adjusted by driving the rotating disc 40 to rotate, so that the entire circumferential interval in the vertical stroke interval of the lifting seat 60 is gradually cleaned; after the entire circumferential interval of the coal bunker 100 in the relative height interval is cleaned, the cylinder rod of the first telescopic cylinder 20 is driven to retract inward, so that the supporting leg 21 is separated from the inner wall of the coal bunker 100 (as shown in the state shown in Figure 1 After that, the base 10, etc. is lowered to a new height position by means of the winch assembly 30, and the supporting leg 21 is again pressed on the inner wall of the coal bunker 100 by the first telescopic cylinder 20 to fix the base 10 relative to the coal bunker 100, and then the above process is repeated to gradually complete the cleaning work of the entire inner wall of the coal bunker 100. It can be seen that, compared with the manual cleaning operation form, the inner wall cleaning device for coal bunker construction provided by the present application helps to improve the operation efficiency of the coal bunker cleaning work and can orderly clean the entire circumferential surface of the inner wall of the coal bunker 100. The double fixing mechanism composed of the first telescopic cylinder 20 and the winch assembly 30 can ensure that the base 10 is stably and reliably stopped at a certain height position relative to the coal bunker 100 for operation, and is not easily affected by the vibration / impact caused by the impact of the pickaxe machine (of the pickaxe) of the pickaxe assembly 70 on the lump 101 during operation, which can avoid the sudden falling of the base 10, i.e. the double protection mechanism can ensure the safety of the entire cleaning operation.

[0032] As Figures 1 to 4As shown, two gantries 11 are oppositely arranged on the upper part of the base 10 in the radial direction (in the left-right direction of the view shown), and a support cross plate 12 is arranged between the upper parts of the two gantries 11. The outer diameter of the rotating disc 40 is significantly smaller than the inner diameter of the base 10. The outer peripheral surface of the rotating disc 40 is formed as an external gear surface. Figure 1 , Figure 3 As shown, two gantries 11 are oppositely arranged on the upper part of the base 10 in the radial direction (in the left-right direction of the view shown), and a support cross plate 12 is arranged between the upper parts of the two gantries 11. The outer diameter of the rotating disc 40 is significantly smaller than the inner diameter of the base 10. The outer peripheral surface of the rotating disc 40 is formed as an external gear surface.

[0033] The rotating disc 40 is pivotally matched with a cylindrical seat 121 arranged on the lower end surface of the support cross plate 12. Specifically, a pivot part 42 in the shape of a cylinder is formed on the upper part of the rotating disc 40, the upper part of the pivot part 42 is inserted into the cylindrical seat 121, and the pivot part 42 is pivotally matched with the cylindrical seat 121, so that the rotating disc 40 can rotate relative to the support cross plate 12 (i.e. the base 10) and can be suspended and fixed at / near the upper end port of the shaft hole of the base 10. The pivot part 42 is coaxially arranged opposite the cylindrical seat 121.

[0034] The motor assembly 41 is arranged on the gantry 11, and the gear arranged at the output end of the motor assembly 41 can engage with the external gear surface on the rotating disc 40, so as to drive the rotating disc 40 to rotate relative to the base 10 around the vertical axis. In the scheme shown, Figures 1 to 4 two motor assemblies 41 are arranged, and the two motor assemblies 41 are oppositely arranged on the two gantries 11. The motor assembly 41 includes a driving motor and a gearbox matched with the driving motor. The driving motor can be fixed on the cross beam of the gantry 11, and the gearbox can be fixed between the two legs of the gantry 11, and the gears at the output ends of the two gearboxes can engage with the external gear surfaces on the rotating disc 40, so as to simultaneously drive the rotating disc 40 to rotate in the same direction.

[0035] The rotating disc 40 is in the shape of a ring, and the pivot part 42 arranged thereon is in the shape of a cylinder coaxial with the rotating disc 40, and the inner diameter of the rotating disc 40 is consistent with the inner diameter of the pivot part 42.

[0036] The third telescopic cylinder 90 is fixedly arranged on the support cross plate 12, and the axis extends downward in the vertical direction. The push-pull cylinder rod 91 of the third telescopic cylinder 90 can pass through the cylinder cavity of the cylindrical seat 121, the shaft cavity of the pivot part 42, the shaft hole of the rotating disc 40 and the shaft hole of the base 10 in sequence, and is pivotally matched with the lifting seat 60, so that the push-pull cylinder rod 91 can rotate relative to the lifting seat 60 and can be fixed with the lifting seat 60. In this way, the third telescopic cylinder 90 will not rotate with the rotating action of the lifting seat 60, and can also push and pull the lifting seat 60 to move up and down.

[0037] Specifically, a vertically upward extending cylindrical seat two 62 is formed on the upper portion of the lifting seat 60. The upper portion of the cylindrical seat two 62 extends into or upwardly out of the shaft hole of the base 10 (see, for example, Figure 2 ), and can be pivotally matched with the lower portion of the push-pull cylinder rod 91, so that the push-pull cylinder rod 91 can rotate relative to the cylindrical seat two 62 and also be fixed together with the cylindrical seat two 62, thereby achieving the action purpose that the third telescopic cylinder 90 does not rotate with the rotation of the lifting seat 60, while also achieving the action purpose of moving the lifting seat 60 in the vertical direction by the third telescopic cylinder 90. That is, the pivot matching structure formed between the lower portion of the push-pull cylinder rod 91 and the upper portion of the cylindrical seat two 62 not only achieves the purpose of relative rotation, but also achieves the purpose of pull connection (i.e., the lower portion of the push-pull cylinder rod 91 and the upper portion of the cylindrical seat two 62 are relatively fixedly connected in the vertical direction). Such design helps to reduce the overall axial size of the third telescopic cylinder 90, and helps to achieve the purpose of compacting and miniaturizing the overall shape of the device itself; at the same time, the lifting seat 60 can have a larger stroke in the vertical direction.

[0038] A disc body is formed on the upper portion of the lifting seat 60, and four arm rods two 61 vertically upwardly extending are provided on the disc body. See, for example, Figure 5 , the outer diameter of the disc body is greater than the width of the lifting seat 60 (which is rectangular), but less than the length of the lifting seat 60. The arm rod one 50 and the arm rod two 61 are correspondingly matched. A slide structure is formed on the arm rod one 50 in the vertical direction, and a convex rail structure is formed on the outer wall of the arm rod two 61, which matches the slide structure. The slide rail structure formed between the arm rod one 50 and the arm rod two 61 can make the lifting seat 60 move up and down relative to the base 10 under the drive of the third telescopic cylinder 90.

[0039] As shown in Figure 1 , Figure 3 , the lower end of the arm rod one 50 can be downwardly extended out of the shaft hole of the base 10. A counterweight can be fixedly provided on the traction machine assembly 30, so as to more reliably avoid the overturning of the base 10 and the like, and further improve the safety of the device. The first telescopic cylinder 20, the second telescopic cylinder 80 and the third telescopic cylinder 90 can be one or more of a hydraulic telescopic cylinder (referred to as a hydraulic telescopic cylinder for short), a pneumatic telescopic cylinder (referred to as a pneumatic telescopic cylinder for short), or an electric telescopic cylinder (referred to as an electric telescopic cylinder for short).

[0040] As shown in Figure 5As shown, the lifting seat 60 is a U-shaped groove body, the second telescopic cylinder 80 is fixed in the U-shaped groove body, and a convex rail is formed on the inner arm of the two sides of the U-shaped groove body. Two wind pick assembly 70 is respectively fixed in one end of a long strip-shaped slide arm 63, and a groove structure corresponding to the convex rail is arranged on the slide arm 63. The other end of the slide arm 63 extending into the U-shaped groove body is formed as a U-shaped structure, and the cylinder rod end of the second telescopic cylinder 80 is fixedly connected with the web plate of the U-shaped structure. During the telescopic action of the cylinder rod of the second telescopic cylinder 80, the slide arm 63 is pushed and pulled relative to the lifting seat 60 to adjust the radial position of the wind pick assembly 70, so that it is close to and away from the inner wall of the coal bunker 100. That is, between the wind pick assembly 70 and the lifting seat 60, the slide rail structure formed by matching the convex rail on the U-shaped groove body with the groove structure on the slide arm 63 can make the two wind pick assemblies 70 slide relative to the lifting seat 60 in the radial direction (left and right direction). The disc body is fixed on the upper part of the U-shaped groove body, which can cover part of the slot, as shown in Figure 5 As shown, the part of the lifting seat 60 exposed outside the disc body can be regarded as a radial arm 64, which can make the wind pick assembly 70 have a larger radial sliding stroke.

[0041] The cleaning method of any one of the above-mentioned coal bunker construction inner wall cleaning devices comprises the following steps: 1) The base 10 is lifted by the traction machine assembly 30 above the coal bunker 100 and into the coal bunker 100; 2) The cylinder rod of the first telescopic cylinder 20 is extended outward to make the supporting leg 21 close to the inner wall of the coal bunker 100 until it is in pressure contact with the inner wall of the coal bunker 100, so that the base 10 is fixed relative to the coal bunker 100; 3) The second telescopic cylinder 80 drives the wind pick assembly 70 to move relative to the lifting seat 60 and gradually close to the inner wall of the coal bunker 100 until the pick head of the wind pick assembly 70 contacts the lump 101 adhered to the coal bunker 100; 4) The wind pick assembly 70 is started to make the pick head collide with the lump 101, and at the same time, the lifting seat 60 is moved in the vertical direction by the third telescopic cylinder 90 to clean the lump 101 on the inner wall of the coal bunker 100 near the base 10; 5) After the lifting seat 60 moves downward to the end of the stroke, the wind pick assembly 70 is closed, and the second telescopic cylinder 80 drives the wind pick assembly 70 to move relative to the lifting seat 60 to reset, and the third telescopic cylinder 90 drives the lifting seat 60 to move upward to reset; 6) The rotating disc 40 is driven to rotate to adjust the circumferential direction of the wind pick assembly 70, and the above steps 3) to 5) are repeated until the cleaning of the entire circumferential surface of the coal bunker 100 is completed; 7) retract the cylinder rod of the first telescopic cylinder 20 to make the supporting leg 21 disengage from the inner wall of the coal bunker 100, and then lower the base 10 to a new height position by the traction machine assembly 30, and repeat the above steps 2) to 6) until the cleaning of the entire inner wall of the coal bunker 100 is completed.

[0042] The above embodiments only illustrate the principles and effects of the present application, and are not intended to limit the present application. The present application can be modified or changed in many aspects without departing from the general idea, and those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical idea of the present application should be covered by the claims of the present application.

Claims

1. A device for cleaning the inner wall of a coal bunker during construction, characterized in that: The system includes a base (10), a plurality of first telescopic cylinders (20) arranged alternately around the base (10), a plurality of traction machine assemblies (30), a turntable (40), a plurality of booms (50) fixed on the turntable (40) and extending vertically downward, a lifting seat (60) that matches the booms (50) via a slide rail structure arranged in the vertical direction and is located opposite to the base (10), two pneumatic pick assemblies (70) that are arranged opposite to each other in the radial direction and match the lifting seat (60) via a slide rail structure arranged in the radial direction, a second telescopic cylinder (80) fixed on the lifting seat (60) and capable of driving the two pneumatic pick assemblies (70) to move relative to the lifting seat (60), and a third telescopic cylinder (90) fixed on the base (10) and capable of driving the lifting seat (60) to move. A support foot (21) is provided at the end of the cylinder rod of the first telescopic cylinder (20). The free ends of the cables (31) on the two traction machine assemblies (30) are fixedly connected to the base (10) respectively, which can lift the base (10) to move up and down; The turntable (40) is pivotally matched with the base (10), and the base (10) is provided with a motor assembly (41) that can drive the turntable (40) to rotate about a vertical axis.

2. The inner wall cleaning device for coal bunker construction according to claim 1, characterized in that: The base (10) is annular; the outer circumferential surface of the turntable (40) is formed as a gear surface, and the outer diameter of the turntable (40) is smaller than the inner diameter of the base (10); On the upper part of the base (10), two gantry frames (11) are provided opposite each other in the radial direction, and a support plate (12) is provided between the upper parts of the two gantry frames (11); the turntable (40) is pivotally matched with the support plate (12) and can be fixedly suspended at the upper port of the shaft hole of the base (10); the motor assembly (41) is provided on the gantry frame (11), and the gear at the output end of the motor assembly (41) can mesh with the gear surface on the turntable (40).

3. The inner wall cleaning device for coal bunker construction according to claim 2, characterized in that: A cylindrical seat (121) is provided on the lower end face of the support plate (12); a pivot portion (42) is formed on the turntable (40); the upper part of the pivot portion (42) extends into the cylindrical seat (121) and establishes a pivot matching relationship with the support plate (12), so that the turntable (40) can rotate relative to the support plate (12) and can be fixed relative to the upper end of the shaft hole of the base (10).

4. The inner wall cleaning device for coal bunker construction according to claim 3, characterized in that: The turntable (40) is ring-shaped, and the pivot part (42) on it is cylindrical and coaxial with it; The third telescopic cylinder (90) is fixed on the support cross plate (12), and the push-pull cylinder rod (91) of the third telescopic cylinder (90) can pass through the shaft hole of the cylindrical seat (121), the pivot part (42), the turntable (40) and the base (10) and then pivotally connect and match with the lifting seat (60), so that the push-pull cylinder rod (91) can rotate relative to the lifting seat (60) and be fixed together with the lifting seat (60).

5. The inner wall cleaning device for coal bunker construction according to claim 4, characterized in that: A vertically upward extending cylindrical seat 2 (62) is formed on the upper part of the lifting seat (60); the upper part of the cylindrical seat 2 (62) extends into the shaft hole of the base (10) or extends upward to the outside of the shaft hole of the base (10), and can pivotally match the lower part of the push-pull cylinder rod (91), so that the push-pull cylinder rod (91) can rotate relative to the cylindrical seat 2 (62) and be fixed together with the cylindrical seat 2 (62).

6. A coal bunker construction inner wall cleaning device according to any one of claims 1 to 5, characterized in that: A disc is formed on the upper part of the lifting seat (60), and multiple arms (61) extending vertically upward are provided on the disc; the first arm (50) and the second arm (61) are matched one-to-one; a slide rail structure is formed on the first arm (50) and arranged in the vertical direction, and a convex rail structure matching the slide rail structure is formed on the outer wall of the second arm (61).

7. The inner wall cleaning device for coal bunker construction according to claim 6, characterized in that: The lifting seat (60) is a U-shaped groove, the second telescopic cylinder (80) is fixed in the groove of the U-shaped groove, and convex rails are formed on the inner arms on both sides of the U-shaped groove; the two pneumatic pick assemblies (70) are respectively fixed at one end of a long strip-shaped sliding arm (63), and each sliding arm (63) is provided with a groove structure corresponding to the convex rail; the other end of the sliding arm 63 extends into the U-shaped groove to form a U-shaped structure, and the second telescopic cylinder 80 is fixedly connected to the connecting plate of the U-shaped structure.

8. A coal bunker construction inner wall cleaning device according to any one of claims 1 to 5, characterized in that: The lifting seat (60) is a U-shaped groove, the second telescopic cylinder (80) is fixed in the groove of the U-shaped groove, and convex rails are formed on the inner arms on both sides of the U-shaped groove; the two pneumatic pick assemblies (70) are respectively fixed at one end of a long strip-shaped sliding arm (63), and the sliding arm (63) is provided with a groove structure that matches the convex rail; the other end of the sliding arm (63) extends into the U-shaped groove to form a U-shaped structure, and the second telescopic cylinder (80) is fixedly connected to the connecting plate of the U-shaped structure.

9. The inner wall cleaning device for coal bunker construction according to claim 1, characterized in that: An elastic pad is provided on the free end face of the support leg (21), and multiple grooves extending in the vertical direction are formed on the elastic pad, and the width of the grooves gradually decreases from top to bottom.

10. A cleaning method based on the coal bunker construction inner wall cleaning device according to any one of claims 1 to 9, characterized in that, Includes the following steps: 1) The traction machine assembly (30) lifts the base (10) above the coal bunker (100) and then lowers it into the coal bunker (100); 2) Extend the cylinder rod of the first telescopic cylinder (20) outward so that the support foot (21) approaches the inner wall of the coal bunker (100) until it presses against the inner wall of the coal bunker (100), thus fixing the base (10) relative to the coal bunker (100); 3) The second telescopic cylinder (80) drives the pneumatic pick assembly (70) to move relative to the lifting seat (60) and gradually approach the inner wall of the coal bunker (100) until the pick head of the pneumatic pick assembly (70) contacts the clump (101) adhering to the coal bunker (100); 4) Start the pneumatic pick assembly (70) so that its pick head hits the clump (101), and at the same time the third telescopic cylinder (90) drives the lifting seat (60) to move vertically to clean the clump (101) on the inner wall of the coal bunker (100) near the base (10); 5) After the lifting platform (60) moves downward to its travel end point, the pneumatic drill assembly (70) is closed, and the lifting platform (60) and the pneumatic drill assembly (70) are driven to reset respectively; 6) Drive the turntable (40) to rotate, adjust the circumferential position of the pneumatic pick assembly (70), and repeat steps 3) to 5) until the cleaning of the entire circumference of the coal bunker (100) is completed; 7) Retract the cylinder rod of the first telescopic cylinder (20) to separate the support foot (21) from the inner wall of the coal bunker (100), and then lower the base (10) to a new height position by the traction machine assembly (30). Repeat steps 2) to 6) until the cleaning of the entire inner wall of the coal bunker (100) is completed.

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