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CN-224214664-U - Vibration cleaning mechanism and coal slide speed reducer bleeder protection casing

CN224214664UCN 224214664 UCN224214664 UCN 224214664UCN-224214664-U

Abstract

The utility model relates to the field of exhaust cleaning, in particular to a vibration cleaning mechanism and a gas release plug protective cover of a coal slide speed reducer, which comprises a switching part, wherein the switching part comprises a shell with a cavity, an air inlet, a first air outlet and a second air outlet are arranged on the shell, a rotatable switching valve body is arranged in the cavity, the switching valve body can rotate under the action of air flow so as to enable an internal channel to be alternately communicated with the first air outlet and the second air outlet, and a filter screen is arranged at the air outlet tail ends of the first air outlet and the second air outlet and is used for generating periodic vibration under the action of alternate exhaust of the two air outlets, so that the filter screen is cleaned. The traditional air release plug single-hole structure is easy to be blocked by coal dust, and the utility model utilizes the air flow to drive the elastic pressure head to periodically impact the filter screen through the cooperative design of the vibration cleaning mechanism and the filter screen, thereby realizing automatic cleaning, remarkably reducing the risk of blocking the filter screen and avoiding the problems of internal pressure rising, sealing damage and oil leakage caused by blocking.

Inventors

  • ZHANG HAIBO
  • LIU JUAN
  • ZHANG LONG
  • ZHANG WENWEI
  • CHENG DONG

Assignees

  • 山西潞安矿业集团慈林山煤业有限公司李村煤矿

Dates

Publication Date
20260508
Application Date
20250616

Claims (10)

  1. 1. A vibration cleaning mechanism is characterized by comprising, A switching member (100) comprising a housing (101) having a cavity (102), an air inlet (103) and a first air outlet (104) and a second air outlet (105) being provided on the housing (101), a rotatable switching valve body (106) being provided within the cavity (102), the switching valve body (106) being rotatable under the influence of an air flow to cause an internal passage to alternately communicate with the first air outlet (104) and the second air outlet (105); The filter screen (200) is positioned at the air outlet tail ends of the first air outlet (104) and the second air outlet (105) and is used for generating periodic vibration under the action of alternate air exhaust of the two air outlets so as to clean the filter screen (200).
  2. 2. The vibration cleaning mechanism according to claim 1, wherein the switching valve body (106) is of a cylindrical structure and is axially divided into an upper valve body (106 a) and a lower valve body (106 b), a plurality of chambers (107) are circumferentially and uniformly distributed in each valve body, the chambers (107) of the upper valve body (106 a) and the chambers (107) of the lower valve body (106 b) at the same position are alternately arranged, adjacent chambers (107) are arranged at intervals, the first air outlet (104) is correspondingly communicated with the chambers (107) of the upper valve body (106 a), and the second air outlet (105) is correspondingly communicated with the chambers (107) of the lower valve body (106 b).
  3. 3. The vibration cleaning mechanism according to claim 2, wherein a plurality of vertically extending air guide grooves (108) are formed in the outer peripheral surface of the switching valve body (106) and are used for guiding the entering air flow to drive the switching valve body (106) to rotate in the cavity, so that the chamber cavities (107) in the upper-layer valve body (106 a) and the lower-layer valve body (106 b) are communicated with the first air outlet (104) and the second air outlet (105) in sequence, and alternate air discharge of the two air outlets is realized.
  4. 4. A protective cover for a gas release plug of a coal slide speed reducer is characterized by comprising the vibration cleaning mechanism as set forth in any one of claims 1-3, and The air release plug component (300) comprises a bolt (301) and a cover body (302) arranged on the bolt (301), a channel (303) is arranged in the bolt (301), a main cavity (304) is formed between the bolt (301) and the cover body (302), a plurality of side cavities (305) are arranged around the main cavity (304), every two adjacent side cavities (305) form a group, the switching component (100) of the vibration cleaning mechanism is arranged between the two side cavities (305) in the same group, an air inlet (103) of the switching component is communicated with the main cavity (304), and two air outlets are respectively communicated with the left side cavity and the right side cavity (305) of the group; An exhaust pipe (306) is arranged on the lower surface of each side chamber (305), and an elastic pressure head (307) which can extend outwards is arranged in the exhaust pipe (306); A filter screen (200) is detachably connected to the lower end of the bolt (301), and the filter screen (200) is positioned in a lower area of the outlet of each exhaust pipe (306) and is used for intercepting impurities discharged from the exhaust pipe (306).
  5. 5. The gas release plug protective cover of the coal slide speed reducer according to claim 4, wherein the bolt (301) comprises a screw rod (301 a) and a head (301 b), and the cover body (302) is arranged on a convex ring (301 c) on the upper surface of the head (301 b) in a threaded connection mode; The main chamber (304) is arranged at the central part of the convex ring (301 c), and each side chamber (305) is circumferentially arranged in the convex ring (301 c) along the main chamber (304).
  6. 6. The gas plug protection cover of the coal slide speed reducer is characterized in that the channel (303) is axially formed in the screw rod (301 a), the lower end of the channel (303) is opened on the bottom surface of the screw rod (301 a), and the upper end of the channel is communicated with the main cavity (304).
  7. 7. The coal chute decelerator air release plug protection cover according to claim 5 or 6, wherein a gasket (308) and a nut (309) are sleeved outside the screw rod (301 a) for fixedly mounting the whole air release plug component (300) at the air release hole of the coal chute head decelerator.
  8. 8. The protective cover for the gas release plug of the coal slide speed reducer according to any one of claims 4 to 6, wherein the filter screen (200) is of an annular structure, a plurality of mounting holes (301 d) are formed in the lower surface of the head of the bolt (301), and the filter screen (200) is fixedly mounted through plug-in fit of a plurality of clamps (201) and the mounting holes (301 d).
  9. 9. The protective cover for the gas plug of the coal slide speed reducer according to claim 8, wherein the hoops (201) are distributed at equal intervals along the annular direction, and at least two hoops (201) are correspondingly arranged at two end positions of each group of two side chambers (305).
  10. 10. The protective cover for a gas release plug of a coal slide speed reducer according to claim 4 or 5, wherein the filter screen (200) is made of elastic materials.

Description

Vibration cleaning mechanism and coal slide speed reducer bleeder protection casing Technical Field The utility model relates to the field of exhaust cleaning, in particular to a vibration cleaning mechanism and a gas plug protective cover of a coal slide speed reducer. Background Currently, in underground coal mine conveying systems, coal slivers are used as one of key equipment and are widely applied to continuous conveying of coal. The coal chute head speed reducer is taken as one of the core components thereof and plays an important role in transmitting power and reducing rotation speed. In order to ensure the internal pressure balance of the speed reducer during operation, a vent hole is usually arranged on the speed reducer shell in the conventional structure, and the speed reducer is plugged by a vent plug screw. However, since the coal chute head speed reducer is usually low in installation position, and the coal chute cannot be stopped in time after the front coal outlet equipment is stopped, a large amount of coal powder is accumulated on the head, and the gas release screw is easily covered and blocked, so that the normal exhaust function of the gas release screw is affected. The main problems in the prior art include that firstly, the traditional air release screw is provided with only one air release hole and is exposed outside, so that the air release screw is easy to be blocked by accumulated coal, the temperature and the pressure in the speed reducer are increased, a sealing element is damaged, oil leakage is caused, the standardized management level of a coal slide nose is reduced, grease waste is caused, even the speed reducer is damaged and needs to be replaced integrally in serious cases, and secondly, coal dust particles easily enter the speed reducer through the air release hole, so that gear oil is polluted, the oil quality and the transmission efficiency of the speed reducer are influenced, and the service life of the gear oil and the integral reliability of equipment are shortened. Although the prior improvement scheme tries to add a filter screen at the position of the air release plug to block coal dust particles, the filter screen has the risk of easy blockage, thereby affecting the air release effect and being difficult to realize the technical requirement of long-term stable operation. Disclosure of Invention Therefore, the technical problem to be solved by the utility model is that although the prior improved scheme tries to add the filter screen at the position of the air release plug to block the coal dust particles, the filter screen is easy to block, so that the air release effect is affected, and the technical requirement of long-term stable operation is difficult to realize. The technical problem is solved by the following technical scheme that the utility model provides a vibration cleaning mechanism, which comprises a switching component, a first air outlet and a second air outlet, wherein the switching component comprises a shell with a cavity, an air inlet, a first air outlet and a second air outlet are arranged on the shell, a rotatable switching valve body is arranged in the cavity, and the switching valve body can rotate under the action of air flow so that an internal channel is alternately communicated with the first air outlet and the second air outlet; The filter screen is positioned at the air outlet tail ends of the first air outlet and the second air outlet and is used for generating periodic vibration under the action of alternate air exhaust of the two air outlets, so that the filter screen is cleaned. In a preferred embodiment of the vibration cleaning mechanism, the switching valve body is of a cylindrical structure and is axially divided into an upper valve body and a lower valve body, a plurality of chambers are circumferentially and uniformly distributed in each valve body, the chambers of the upper valve body and the chambers of the lower valve body at the same position are alternately arranged, adjacent chambers are arranged at intervals, a first air outlet is correspondingly communicated with the chambers of the upper valve body, and a second air outlet is correspondingly communicated with the chambers of the lower valve body. In a preferred embodiment of the vibration cleaning mechanism, a plurality of vertically extending air guide grooves are formed in the peripheral surface of the switching valve body and used for guiding the entering air flow to drive the switching valve body to rotate in the cavity, so that the chamber cavities in the upper-layer valve body and the lower-layer valve body are communicated with the first air outlet and the second air outlet in sequence, and alternate exhaust of the two air outlets is realized. The utility model further provides a gas release plug protective cover of the coal slide speed reducer, which comprises a vibration cleaning mechanism and a gas release plug component, wherein the gas release plug protec