Coal drop pipe structure

Abstract

The utility model relates to a coal drop pipe structure which comprises a coal drop channel, a flow guide assembly and a vibration dredging assembly, the coal drop channel comprises a coal outlet section, and the cross section of the coal outlet section is gradually reduced in the length direction of the coal outlet section; the flow guide assembly comprises a flow guide plate, a connecting shaft and an actuating shaft, the flow guide plate is connected to the coal falling channel in a reciprocating rotation mode through the connecting shaft so as to open and close the coal falling channel, and the actuating shaft is connected to the outer end, located outside the coal falling channel, of the connecting shaft and eccentrically arranged with the connecting shaft so as to swing along with rotation of the connecting shaft; the vibration dredging assembly is arranged outside the coal falling channel and comprises a connecting arm and a vibration hammer connected with the connecting arm, and the connecting arm is provided with a strip-shaped hole allowing the actuating shaft to penetrate through so that the connecting arm and the vibration hammer can move in a reciprocating mode in the length direction of the coal outlet section along with swinging of the connecting shaft, and the vibration hammer can beat the outer wall of the coal outlet section repeatedly. Therefore, the coal drop pipe can avoid coal blockage, so that the coal drop point of the coal drop pipe is stable and does not deviate, and the stability and the operation efficiency of a coal conveying system are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coal transportation, and in particular, to a coal drop pipe structure. Background Art

[0002] The coal transportation system of thermal power enterprises is usually composed of a support frame, a conveyor belt and a coal drop pipe. The coal drop pipe is a general term for coal pipelines in coal mines, ports, thermal power plants, coal transfer stations, coal washing plants, coal-fired boilers and other industries, generally including coal drop hoppers, downpipes, guide troughs and other components. Longer coal drop pipes also need to add air locks to reduce dust, and diversion flap doors and other components when diverting.

[0003] When the coal transportation system is in operation, especially when the load is large during material reclaiming operation, the inner wall of the coal drop pipe is easily blocked by coal, causing the coal drop point of the coal drop pipe to shift. The drop point has a large impact force on the side belts on both sides of the belt, causing the belt to deviate during operation, resulting in coal spillage, reducing the load and operating efficiency of the coal transportation system. Utility Model Content

[0004] The purpose of the present disclosure is to provide a coal dropping pipe structure which can be unblocked without coal blockage so that the coal dropping point of the coal dropping pipe is stable and does not deviate, so as to at least partially solve the problems in the related art.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a coal dropping pipe structure, including: a coal dropping channel for receiving intermittently transported coal, the coal dropping channel including a coal discharge section, the cross-section of the coal discharge section gradually shrinks along the length direction of the coal discharge section; a guide assembly, arranged in the coal dropping channel, the guide assembly including a guide plate, a connecting shaft and an actuating shaft, the guide plate being reciprocatingly connected to the coal dropping channel through the connecting shaft to open and close the coal dropping channel, the actuating shaft being connected to the outer end of the connecting shaft located outside the coal dropping channel and being eccentrically arranged with the connecting shaft to swing with the rotation of the connecting shaft; and a vibration dredging assembly, arranged outside the coal dropping channel, including a connecting arm and a vibration hammer connected to the connecting arm, the connecting arm having a strip hole for the actuating shaft to pass through, so that the connecting arm and the vibration hammer reciprocate along the length direction of the coal discharge section with the swing of the connecting shaft, so that the vibration hammer repeatedly strikes the outer wall of the coal discharge section.

[0006] Optionally, the guide assembly includes a reset member connected to the connecting shaft for resetting the guide plate.

[0007] Optionally, the reset member includes a sleeve, a connecting plate and a spring, the sleeve is sleeved on the outer end of the connecting shaft and fixedly connected to the outer wall of the coal dropping channel, the actuating shaft is connected to the connecting shaft through the connecting plate, and the spring is arranged in the sleeve and abuts against the connecting plate to provide a reset elastic force to the guide plate through the connecting plate.

[0008] Optionally, the reset member also includes a guide rod, which is an arc-shaped rod extending around the central axis of the connecting shaft, the spring is sleeved on the guide rod, the sleeve is provided with an L-shaped mounting plate, the two ends of the guide rod are respectively fixedly connected to the two mounting surfaces of the mounting plate, the connecting plate has a through hole sleeved on the guide rod, and the spring abuts between one of the mounting surfaces and the connecting plate.

[0009] Optionally, the connecting arm includes a first connecting arm and a second connecting arm, the first end of the first connecting arm is provided with the strip hole, so that the first connecting arm can reciprocate as the connecting shaft rotates, the second end of the first connecting arm is hingedly connected to the first end of the second connecting arm, the vibrating hammer is arranged at the second end of the second connecting arm, a guide structure is provided on the outer wall of the coal dropping channel, and a guide matching structure is provided on the second connecting arm, and the guide structure is slidably matched with the guide matching structure to guide the second connecting arm and the vibrating hammer to reciprocate with the first connecting arm.

[0010] Optionally, there are two second connecting arms and two vibrating hammers, the second ends of the first connecting arms are hinged to two third connecting arms respectively, and the two third connecting arms are hingedly connected to the first ends of the two second connecting arms respectively.

[0011] Optionally, the vibration dredging assembly further includes a guide sleeve, which is arranged on the outer wall of the coal dropping channel and sleeved on the outer periphery of the first connecting arm to limit the moving stroke of the first connecting arm.

[0012] Optionally, a rubber pad is provided in the guide sleeve.

[0013] Optionally, one of the guide structure and the guide matching structure includes a slide groove, and the other includes a slide block.

[0014] Optionally, there are two coal dropping channels, and the two coal dropping channels are connected and arranged in a V shape, and a feed hopper is provided at the connection point of the two coal dropping channels.

[0015] Through the above technical scheme, the intermittently transported coal is received through the coal falling channel, and the guide plate in the guide assembly reciprocates with the connecting shaft to open and close the coal falling channel. The connecting arm in the vibration dredging assembly is connected to the actuating shaft, and a vibrating hammer is provided on the connecting arm. When the coal passes through the coal falling channel, the guide plate in the guide assembly can be pushed to rotate around the connecting shaft, thereby opening the coal falling channel so that the coal can be discharged through the coal outlet section after passing through the guide plate. At the same time, the rotation of the connecting shaft will drive the actuating shaft to swing, thereby driving the connecting arm to swing and driving the vibrating hammer to move along the coal outlet section. The guide plate will intermittently open or close the coal dropping channel, thus driving the vibrating hammer to move back and forth along the length direction of the coal discharge section as the connecting shaft rotates, so that the vibrating hammer can repeatedly hit the outer wall of the coal discharge section to avoid coal accumulation in the coal discharge section, thereby making the coal dropping point of the coal dropping channel stable and not shifted, thus solving the problem of the belt running off track and coal spilling caused by the large impact force on the belts on both sides due to the shift of the dropping point, thereby improving the stability and operation efficiency of the coal transportation system.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 is a first angle schematic diagram of a coal drop pipe structure provided in an exemplary embodiment of the present disclosure;

[0019] Figure 2 is a cross-sectional schematic diagram provided in an exemplary embodiment of the present disclosure;

[0020] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0021] Figure 4 is a second angle schematic diagram of a coal drop pipe structure provided in an exemplary embodiment of the present disclosure;

[0022] Figure 5 A schematic diagram of a partial structure of a restoring member provided in an exemplary embodiment of the present disclosure.

[0023] Description of Reference Numerals

[0024] 1-coal falling channel; 11-coal discharge section; 12-feed hopper; 2-guide assembly; 21-guide plate; 22-connecting shaft; 23-reset member; 231-sleeve; 232-connecting plate; 233-spring; 234-guide rod; 235-mounting plate; 24-actuating shaft; 3-vibration dredging assembly; 31-connecting arm; 311-first connecting arm; 312-second connecting arm; 313-third connecting arm; 314-first connecting section; 315-first corner section; 316-second corner section; 317-second connecting section; 32-vibration hammer; 33-guide sleeve; 34-guide structure. DETAILED DESCRIPTION

[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0026] In the present disclosure, unless otherwise stated, the directional words used, such as "upper, lower, left, right", generally refer to the use state of the coal drop pipe structure, and "inside, outside" refer to the contour of the part itself. In addition, it should be noted that the terms used, such as "first, second", etc., are used to distinguish one element from another, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0027] like Figures 1 to 5 As shown, the utility model provides a coal dropping pipe structure, comprising: a coal dropping channel 1, a guide assembly 2 and a vibration dredging assembly 3, wherein the coal dropping channel 1 is used to receive intermittently transported coal, and the coal dropping channel 1 comprises a coal outlet section 11, and the cross section of the coal outlet section 11 gradually decreases along the length direction of the coal outlet section 11; the guide assembly 2 is arranged in the coal dropping channel 1, and the guide assembly 2 comprises a guide plate 21, a connecting shaft 22 and an actuating shaft 24, the guide plate 21 is reciprocatingly connected to the coal dropping channel 1 through the connecting shaft 22 to open and close the coal dropping channel 1, and the actuating shaft 24 is connected to the outer end of the connecting shaft 22 located outside the coal dropping channel 1 and is eccentrically arranged with the connecting shaft 22, that is, the actuating shaft 24 The central axis is parallel to the central axis of the connecting shaft 22 and does not overlap. The actuating shaft 24 swings with the rotation of the connecting shaft 22, so that when the connecting shaft 22 rotates, it can drive the actuating shaft 24 to move synchronously eccentrically; the vibration dredging assembly 3 is arranged outside the coal dropping channel 1, and the vibration dredging assembly 3 includes a connecting arm 31 and a vibration hammer 32 connected to the connecting arm 31. The connecting arm 31 has a strip hole for the actuating shaft 24 to pass through. The eccentric setting of the actuating shaft 24 can facilitate the reciprocating movement of the connecting arm 31 with the rotation of the connecting shaft 22, and at the same time drive the vibration hammer 32 to move back and forth along the length direction of the coal outlet section 11, so that the vibration hammer 32 repeatedly hits the outer wall of the coal outlet section 11.

[0028] Through the above technical solution, the intermittently transported coal is received through the coal-dropping channel 1, and the guide plate 21 in the guide assembly 2 reciprocates along with the connecting shaft 22 to open and close the coal-dropping channel 1. The connecting arm 31 in the vibration dredging assembly 3 is connected to the actuating shaft 24, and a vibrating hammer 32 is provided on the connecting arm 31. When the coal passes through the coal-dropping channel 1, the guide plate 21 in the guide assembly 2 can be pushed to rotate around the connecting shaft 22, thereby opening the coal-dropping channel 1 so that the coal can be discharged through the coal outlet section 11 after passing through the guide plate 21. At the same time, the rotation of the connecting shaft 22 will drive the actuating shaft 24 to swing, thereby driving the connecting arm 31 to swing and driving The vibrating hammer 32 moves along the length direction of the coal outlet section 11. Since the incoming coal is intermittent, the guide plate 21 will intermittently open or close the coal dropping channel 1, thereby driving the vibrating hammer 32 to move back and forth along the length direction of the coal outlet section 11 as the connecting shaft 22 rotates, so that the vibrating hammer 32 repeatedly strikes the outer wall of the coal outlet section 11 to avoid coal accumulation in the coal outlet section 11, thereby ensuring that the coal dropping point of the coal dropping channel 1 is stable and does not shift, thereby solving the problem of the belt running off track and coal spilling caused by the large impact force on the belts on both sides due to the shift of the dropping point, thereby improving the stability and operation efficiency of the coal transportation system.

[0029] In some practicable embodiments, the guide plate 21 can be arranged according to the cross section of the coal dropping channel 1. For example, when the cross section of the coal dropping channel 1 is rectangular, the guide plate 21 is also rectangular and can cover the cross section installed at the position of the coal dropping channel 1. Of course, in order to facilitate the guide plate 21 to block the coal dropping channel 1, a sealing ring can be arranged on the outer contour edge of the guide plate 21 so that when the guide plate 21 rotates, the guide plate 21 can abut against the inner side wall of the coal dropping channel 1. Of course, a sealing ring can also be arranged in the coal dropping channel 1 along the inner side wall of the coal dropping channel 1. The annular plate extending inward is used to stop the guide plate 21, so that the guide plate 21 can cooperate with the annular plate to block the coal-dropping channel 1 when the coal-dropping channel 1 does not transport coal. The connecting shaft 22 is arranged at one end of the guide plate 21 and is hingedly connected to the inner side wall of the coal-dropping channel 1. The inner side wall of the coal-dropping channel 1 can be provided with a receiving groove. The connecting shaft 22 is arranged in the receiving groove and the connecting shaft 22 can rotate around its own axis relative to the receiving groove. The guide plate 21 opens and closes the coal-dropping channel 1 as the connecting shaft 22 rotates. In addition, when coal transportation is interrupted, the guide assembly 2 is in a normally closed state. At this time, the guide plate 21 abuts against the inner side wall of the coal-dropping channel 1 to block the coal-dropping channel 1. When coal is transported, the guide plate 21 in the guide assembly 2 is impacted by the coal and rotates around the connecting shaft 22, thereby opening the coal-dropping channel 1 so that the coal is guided through the guide plate 21 and discharged through the coal outlet section 11.

[0030] In some practicable embodiments, in order to facilitate the repeated opening and closing of the guide assembly 2 with intermittent coal supply, the guide assembly 2 includes a reset member 23, which is connected to the connecting shaft 22 to reset the guide plate 21. Specifically, Figure 5 As shown, the reset member 23 includes a sleeve 231, a connecting plate 232 and a spring 233. The sleeve 231 is sleeved on the outer end of the connecting shaft 22 and fixedly connected to the outer side wall of the coal-dropping channel 1. The actuating shaft 24 is connected to the connecting shaft 22 through the connecting plate 232. The spring 233 is arranged in the sleeve 231 and abuts against the connecting plate 232 to provide a reset elastic force to the guide plate 21 through the connecting plate 232. Therefore, when coal enters the coal-dropping channel 1, it contacts the guide plate 21 so that the guide plate 21 is tilted as the connecting shaft 22 rotates. At this time, the spring 233 is in a compressed state. When no coal passes through the coal-dropping channel 1, the spring 233 rebounds and stretches to apply a reverse elastic force to the connecting shaft 22, so that the connecting shaft 22 rotates in the reverse direction, driving the guide plate 21 to return to the initial position. Of course, it can be understood that in the process of the reverse rotation and reset of the connecting shaft 22, the vibrating hammer 32 also returns to the initial position as the connecting shaft 22 rotates in the reverse direction and separates from the coal-dropping channel 1.

[0031] In order to facilitate the installation of the spring 233 and guide the release of the elastic force, in some feasible methods, the reset member 23 also includes a guide rod 234, which is an arc-shaped rod extending around the central axis of the connecting shaft 22. The spring 233 is sleeved on the guide rod 234, and the sleeve 231 is provided with an L-shaped mounting plate 235. The two ends of the mounting plate 235 can be welded and fixed to the inner wall of the sleeve 231, and the two ends of the guide rod 234 are respectively fixedly connected to the two mounting surfaces of the mounting plate 235. The connecting plate 232 has a through hole sleeved on the guide rod 234, and the spring 233 abuts between one of the mounting surfaces and the connecting plate 232, so that the elastic force of the spring 233 can be released in an arc shape, driving the connecting shaft 22 to rotate in the opposite direction, thereby resetting the guide plate 21 and the vibrating hammer 32.

[0032] In some practicable embodiments, the connecting arm 31 includes a first connecting arm 311 and a second connecting arm 312. The first end of the first connecting arm 311 is provided with a strip hole matched with the actuating shaft 24, so that the first connecting arm 311 can reciprocate as the connecting shaft 22 rotates. The second end of the first connecting arm 311 is hingedly connected to the first end of the second connecting arm 312. The vibrating hammer 32 is provided at the second end of the second connecting arm 312, so that the guide plate 21 in the guide assembly 2 is impacted by the coal and rotates around the connecting shaft 22, thereby opening the coal falling channel 1 so that the coal passes through the guide plate 21 and passes through the coal outlet section 1. 1 is discharged. At this time, the connecting shaft 22 drives the actuating shaft 24 to swing and drives the first connecting arm 311 to move back and forth during the rotation process, thereby driving the second connecting arm 312 hinged to the first connecting arm 311 to drive the vibrating hammer 32 to move back and forth along the length direction of the coal discharge section 11, thereby repeatedly hitting the outer wall of the coal discharge section 11 to avoid coal accumulation, so that the coal dropping point of the coal dropping channel 1 can be stable and not deviated, which solves the problem that the belt deviates and coal is scattered due to the large impact force on the belts on both sides of the belt caused by the deviation of the dropping point, thereby improving the stability and operation efficiency of the coal transportation system.

[0033] In addition, in order to facilitate the movement of the second connecting arm 312, in some practicable ways, a guide structure 34 is provided on the outer wall of the coal-dropping channel 1, and a guide matching structure is provided on the second connecting arm 312. The guide structure 34 and the guide matching structure are slidably matched to guide the second connecting arm 312 and the vibrating hammer 32 to reciprocate with the first connecting arm 311. Specifically, one of the guide structure 34 and the guide matching structure includes a slide groove, and the other includes a slider. For example, the guide structure 34 is configured as a slide groove, and the guide matching structure is configured as a slider matched with the slide groove. The slider is fixedly connected to the second connecting arm 312, and the slide groove is provided on the outer wall of the coal-dropping channel 1, so that the movement trajectory of the second connecting arm 312 can be limited by the cooperation of the slide groove and the slider, so as to avoid the second connecting arm 312 from being damaged due to excessive movement, so that the second connecting arm 312 is within a reasonable range of movement, and the service life of the second connecting arm 312 is improved. Of course, it can be understood that the above-mentioned guide structure 34 can also be configured as a slider, and the guide matching structure can also be a slide groove.

[0034] In order to improve the efficiency of the vibrating hammer 32 in striking the coal outlet section 11, in some practicable methods, the number of the second connecting arm 312 and the vibrating hammer 32 are both two, and the second end of the first connecting arm 311 is respectively hinged to two third connecting arms 313, and the two third connecting arms 313 are respectively hinged to the first ends of the two second connecting arms 312. Thus, by swinging with the rotation of the connecting shaft 22, the two second connecting arms 312 can be driven to move back and forth along the length direction of the coal outlet section 11 at the same time, thereby driving the two vibrating hammers 32 to repeatedly strike the coal outlet section 11 to avoid coal accumulation in the coal outlet section 11, so that the coal dropping point of the coal outlet of the coal dropping channel 1 can be stable and not deviated, which solves the problem that the belt deviates and causes coal to be scattered due to the large impact force on the belts on both sides of the belt caused by the deviation of the dropping point, thereby improving the stability and operation efficiency of the coal transportation system.

[0035] Specifically, Figure 4As shown, the connecting arm 31 may include a first connecting arm 311, two second connecting arms 312 and two third connecting arms 313. The first connecting arm 311, the second connecting arm 312 and the third connecting arm 313 may all be steel plates. The first connecting arm 311 may include a first connecting segment 314 and a first corner segment 315. The cross-section of the coal falling channel 1 is a rectangle, and the rectangle includes a first side wall, a second side wall, a third side wall and a fourth side wall connected end to end in sequence. The two ends of the connecting shaft 22 may be rotatably connected to the first side wall and the third side wall respectively. The corner of the first corner segment 315 is a right angle. The first corner segment 315 extends from the first side wall toward the second side wall. The first end of the first corner segment 315 is connected to the connecting shaft 22. The outer end is hingedly connected, the first connecting section 314 is located on the second side wall and extends along the length direction of the coal outlet section 11, and the first corner section 315 and the first connecting section 314 are integrally formed, so that when the connecting shaft 22 rotates, the first corner section 315 can drive the first connecting section 314 to move along the length direction of the coal outlet section 11, and the rotational movement mode is converted into an approximately linear movement. In addition, it is also convenient to set the two third connecting arms 313 on both sides of the first connecting section 314, and two hinge positions are set on the first connecting section 314. The two third connecting arms 313 are hingedly set at the hinge positions through the hinge shaft. Of course, the second connecting arm 312 can include a second corner section 316 and a second connecting section 317, and the second corner section 316 is composed of The second side wall extends toward the first side wall, and the first ends of the two second corner sections 316 are respectively hingedly connected to the corresponding third connecting arms 313, and the second connecting section 317 is integrally formed with the second corner section 316. The second connecting section 317 extends along the length direction of the coal outlet section 11, and the vibrating hammer 32 is arranged on the second connecting section 317 and is spaced apart from the coal outlet section 11. In this way, the two vibrating hammers 32 can be arranged on the first side wall and the third side wall through the two second connecting arms 312, so that the coal outlet section 11 can be struck by the two vibrating hammers 32 to avoid coal accumulation during coal transportation. Specifically, when coal passes through, the connecting shaft 22 is driven to rotate, and the rotation of the connecting shaft 22 drives the first connecting arm 311 The first connecting section 314 moves in a square shape along the length of the coal outlet section 11 in the coal dropping channel 1, and drives the second corner section 316 and the second connecting section 317 to move synchronously through the two third connecting arms 313. At this time, the vibrating hammer 32 provided in the second connecting section 317 can move along the length direction of the coal outlet section 11 with the second connecting section 317 and knock the coal outlet section 11, so that through the linkage of the first connecting arm 311, the second connecting arm 312 and the third connecting arm 313, the vibrating hammer 32 is driven to intermittently rotate along with the intermittent coal driving the connecting shaft 22, so that the vibrating hammer 32 can repeatedly knock the coal dropping channel 1, thereby improving the vibration efficiency to avoid coal accumulation in the coal dropping channel 1, and improving the stability and operation efficiency of the coal transportation system.

[0036] In order to limit the movement stroke of the first connecting arm 311, in some practicable ways, the vibration dredging assembly 3 further includes a guide sleeve 33, which can be an arc-shaped steel plate. The two ends of the guide sleeve 33 can be fixedly connected to the outer wall of the coal-dropping channel 1 by welding. The guide sleeve 33 is arranged on the outer wall of the coal-dropping channel 1 and sleeved on the outer periphery of the first connecting arm 311 to limit the movement stroke of the first connecting arm 311. Therefore, when coal enters the coal-dropping channel 1, the connecting shaft 22 starts to rotate, thereby driving the first connecting arm 311 to move back and forth. The setting of the guide sleeve 33 can limit the movement stroke of the first connecting arm 311, avoid the first connecting arm 311 from being damaged due to excessive movement, and improve the service life of the first connecting arm 311. In addition, in some practicable ways, a rubber pad is arranged in the guide sleeve 33, so that the setting of the rubber pad can avoid the first connecting arm 311 from directly contacting and colliding with the inner wall of the guide sleeve 33, thereby improving the service life of the first connecting arm 311.

[0037] In order to improve the conveying efficiency, in some practicable ways, there are two coal dropping channels 1 and the two coal dropping channels 1 are connected and arranged in a V shape, and a feed hopper 12 is provided at the connecting point of the two coal dropping channels 1, wherein the connecting point of the two coal dropping channels 1 is provided with a feed hopper 12, and the feed hopper 12 may include a feed section and a reduced diameter section, so as to guide the intermittently conveyed coal through the feed hopper 12 into the two coal dropping channels 1. It can be understood that when there are two coal dropping channels 1, a corresponding guide assembly 2 and a vibration dredging assembly 3 are provided on each coal dropping channel 1.

[0038] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0040] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A coal drop pipe structure, characterized in that: include: A coal-dropping channel, used for receiving intermittently transported coal, the coal-dropping channel comprising a coal-discharging section, the cross section of which gradually decreases along the length direction of the coal-discharging section; a guide assembly, arranged in the coal-dropping channel, comprising a guide plate, a connecting shaft and an actuating shaft, wherein the guide plate is reciprocatingly connected to the coal-dropping channel via the connecting shaft to open and close the coal-dropping channel, and the actuating shaft is connected to an outer end of the connecting shaft located outside the coal-dropping channel and is eccentrically arranged with the connecting shaft to swing with the rotation of the connecting shaft; and A vibration dredging assembly is arranged outside the coal dropping channel, and includes a connecting arm and a vibration hammer connected to the connecting arm. The connecting arm has a strip hole for the actuating shaft to pass through, so that the connecting arm and the vibration hammer can reciprocate along the length direction of the coal outlet section as the connecting shaft rotates, so that the vibration hammer repeatedly strikes the outer wall of the coal outlet section.

2. The coal drop pipe structure according to claim 1, characterized in that: The guide assembly includes a reset member, which is connected to the connecting shaft and is used for resetting the guide plate.

3. The coal drop pipe structure according to claim 2, characterized in that: The reset member includes a sleeve, a connecting plate and a spring. The sleeve is sleeved on the outer end of the connecting shaft and fixedly connected to the outer wall of the coal dropping channel. The actuating shaft is connected to the connecting shaft through the connecting plate. The spring is arranged in the sleeve and abuts against the connecting plate to provide a reset elastic force to the guide plate through the connecting plate.

4. The coal drop pipe structure according to claim 3, characterized in that: The reset member also includes a guide rod, which is an arc-shaped rod extending around the central axis of the connecting shaft. The spring is sleeved on the guide rod. The sleeve is provided with an L-shaped mounting plate. The two ends of the guide rod are respectively fixedly connected to the two mounting surfaces of the mounting plate. The connecting plate has a through hole sleeved on the guide rod, and the spring abuts between one of the mounting surfaces and the connecting plate.

5. The coal drop pipe structure according to claim 1, characterized in that: The connecting arm includes a first connecting arm and a second connecting arm. The first end of the first connecting arm is provided with the strip hole so that the first connecting arm can reciprocate as the connecting shaft rotates. The second end of the first connecting arm is hingedly connected to the first end of the second connecting arm. The vibrating hammer is arranged at the second end of the second connecting arm. A guiding structure is arranged on the outer wall of the coal dropping channel. A guiding matching structure is arranged on the second connecting arm. The guiding structure is slidably matched with the guiding matching structure to guide the second connecting arm and the vibrating hammer to reciprocate with the first connecting arm.

6. The coal drop pipe structure according to claim 5, characterized in that: The number of the second connecting arms and the number of the vibrating hammers are both two, the second ends of the first connecting arms are respectively hinged to two third connecting arms, and the two third connecting arms are respectively hinged to the first ends of the two second connecting arms.

7. The coal drop pipe structure according to claim 5, characterized in that: The vibration dredging assembly also includes a guide sleeve, which is arranged on the outer side wall of the coal falling channel and sleeved on the outer periphery of the first connecting arm to limit the moving stroke of the first connecting arm.

8. The coal drop pipe structure according to claim 7, characterized in that: A rubber pad is arranged in the guide sleeve.

9. The coal drop pipe structure according to claim 5, characterized in that: One of the guide structure and the guide matching structure includes a slide groove, and the other includes a slide block.

10. The coal drop pipe structure according to claim 1, characterized in that: There are two coal dropping channels, and the two coal dropping channels are connected and arranged in a V shape. A feeding hopper is provided at the connection point of the two coal dropping channels.

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