CN219540941U - Coal mining screening device - Google Patents
Coal mining screening device Download PDFInfo
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- CN219540941U CN219540941U CN202320134643.XU CN202320134643U CN219540941U CN 219540941 U CN219540941 U CN 219540941U CN 202320134643 U CN202320134643 U CN 202320134643U CN 219540941 U CN219540941 U CN 219540941U
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- coal
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- screening box
- screening
- coal mine
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Abstract
The utility model provides a coal mining screening device, which relates to the technical field of coal mining and comprises the following components: the coal mine screening box is arranged in the middle of the outer frame, two fixing plates are symmetrically and fixedly arranged on one side, close to the bottom, of the outer frame, a round shaft is movably embedded into the opposite side of the two fixing plates, and a cam is sleeved on the outer surface of the round shaft. According to the utility model, the motor is started to rotate the cam to push the sliding plate upwards, the coal mine screening box is driven to rotate around the rotating rod, the L-shaped plate and the circular ring are pulled to move to one side along the convex groove, so that the inclination angle of the coal mine screening box is improved, and the coal mine screening box can be repeatedly lifted and lowered under the action of the cam, so that the coal on the first sieve plate, the second sieve plate and the bottom of the coal mine screening box vibrate, the blocking phenomenon is reduced through the speed of rolling the coal on the sieve plates, and the production efficiency of coal screening is improved.
Description
Technical Field
The utility model relates to the technical field of coal mining, in particular to a coal mining screening device.
Background
Coal mine is an area where human beings mine coal resources in a mining area rich in coal, coal is an important resource required by economic development of China, and plays an important role in the economic development of China, and in order to fully utilize the coal resources, the coal resources need to be screened in the coal mining process, so that coals with different sizes are distinguished.
But in current technique, when screening coal, set up the sieve to the slope form usually, rethread vibrating motor carries out whole vibration to screening equipment to screening coal, but this kind of screening mode, coal need slowly roll to one end along the screen cloth through the mode of vibration, lead to the time to the coal screening longer, make unloading department jam easily, influence the production efficiency of coal screening, and when the coal of accumulation on the sieve is too much, produce the impact to the sieve easily during the screening, make the phenomenon that the sieve damaged appear.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, when coal is screened, a screen plate is generally inclined, and then screening equipment is integrally vibrated by a vibrating motor, so that coal is screened, but in the screening mode, the coal needs to slowly roll towards one end along the screen plate in a vibrating mode, so that the coal screening time is long, a blanking position is easy to block, the production efficiency of coal screening is influenced, and when excessive coal accumulated on the screen plate is screened, the screen plate is easy to impact, and the screen plate is damaged.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: a coal mining screening device comprising: the coal mine screening box is arranged in the middle of the outer frame, two fixing plates are symmetrically and fixedly arranged on one side of the outer frame close to the bottom, round shafts are movably embedded on the opposite sides of the fixing plates, cams are arranged on outer surface fixing sleeves of the round shafts, one of the fixing plates is fixedly provided with a motor, the output end of the motor is fixedly arranged at one end of the round shafts, square holes are formed in one side of the outer frame close to the top, round rods are fixedly arranged on the opposite sides of the square holes close to one end, sliding plates are movably sleeved at one ends of the round rods, convex grooves are formed in one ends of the tops of the sliding plates, L-shaped plates are movably embedded in the bottoms of the convex grooves, round blocks are fixedly arranged at one ends of the L-shaped plates, and one side of each L-shaped plate is fixedly arranged on one side of the coal mine screening box close to the bottom.
As a preferred implementation mode, the outer frame is close to the opposite side of one end and all movably embedded and is equipped with rotatory handle, two rotatory one side of handle is fixed mounting respectively in colliery screening case and is close to the opposite side of one end, the outer frame is close to the opposite side of the other end and all movably embedded and is equipped with the bull stick, two the one end of bull stick is fixed mounting respectively in colliery screening case and is close to the opposite side of the other end.
The technical effect of adopting the further scheme is as follows: when the coal mine screening box is close to one end of the rotating handle and receives upward thrust, the coal mine screening box rotates around the rotating rod, and the rotating handle is synchronously rotated, so that the coal mine screening box can vibrate up and down around the rotating rod conveniently.
As a preferred implementation mode, the outer frame is close to the bottom symmetry fixed mounting of one end inner wall and has two U type framves, two the relative one side of two support arms of U type frame all activity is inlayed and is equipped with the movable rod, two the equal fixed cover of surface of movable rod is equipped with the telescopic link, two the equal movable cover of surface of telescopic link is equipped with reset spring, two reset spring's one end respectively fixed mounting is at the surface of two movable rods, two reset spring's the other end respectively symmetry fixed mounting is near the bottom of one end at the colliery screening box.
The technical effect of adopting the further scheme is as follows: when the coal mine screening box descends, the telescopic rod is contracted, the reset spring is synchronously compressed, and under the cooperation of the movable rod, the telescopic rod and the reset spring are enabled to follow the change of the angle of the coal mine screening box, so that the impact force on the first screen plate and the second screen plate is slowed down when the coal mine screening box vibrates up and down through the mutual cooperation of the telescopic rod and the reset spring, the first screen plate and the second screen plate are prevented from being damaged, and the service life of the first screen plate and the service life of the second screen plate are prolonged.
As a preferable implementation mode, the inner wall of the coal mine screening box close to the top is fixedly provided with a first screen plate, and the inner wall of the coal mine screening box close to the bottom is fixedly provided with a second screen plate.
The technical effect of adopting the further scheme is as follows: through the setting of first sieve and second sieve, play and realize multistage screening to coal.
As a preferred implementation mode, the one end fixed mounting at colliery screening box top has the feed inlet, the feed inlet is linked together with the colliery screening box, the other end of colliery screening box is provided with the discharge gate.
The technical effect of adopting the further scheme is as follows: through the setting of feed inlet, make things convenient for coal to pour into the colliery screening box to screen through first sieve and second sieve, the rethread is connected to the different screening layers of discharge gate with the conveyer belt, realizes shifting and collecting the coal after the screening.
As a preferable implementation mode, the inside of the convex groove is movably embedded with a circular ring, and the circular ring is fixedly sleeved on the outer surface of the circular block.
The technical effect of adopting the further scheme is as follows: friction between the circular ring and the inner wall of the sliding plate is reduced under the action of the circular ring and the circular block.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. according to the utility model, the output shaft of the coal mine screening box is driven to rotate by starting the motor to drive the circular shaft to rotate, so that the cam rotates, the sliding plate is pushed upwards to slide upwards along the circular rod through the rotation of the cam, the L-shaped plate and the circular ring are synchronously moved upwards to drive the coal mine screening box to rotate around the circular rod, at the moment, the L-shaped plate and the circular ring are pulled to move to one side along the convex groove due to the upward rotation of the coal mine screening box, the rotating handle is synchronously rotated, so that the inclination angle of the coal mine screening box is increased, the speed of rolling coal on the bottoms of the first sieve plate, the second sieve plate and the coal mine screening box to one side can be increased, the coal screening box can be repeatedly lifted and lowered through the action of the cam, so that the coal on the bottoms of the first sieve plate, the second sieve plate and the coal mine screening box can vibrate, the phenomenon of blocking is reduced, and the production efficiency of coal screening is improved.
2. According to the utility model, the telescopic rod is contracted, the reset spring is synchronously compressed, and the telescopic rod and the reset spring are enabled to follow the angle change of the coal mine screening box under the cooperation of the movable rod, so that the impact force on the first screen plate and the second screen plate is relieved when the coal mine screening box vibrates up and down under the cooperation of the telescopic rod and the reset spring, the first screen plate and the second screen plate are prevented from being damaged, and the service lives of the first screen plate and the second screen plate are prolonged.
Drawings
FIG. 1 is a schematic side view of a coal mining screening device according to the present utility model;
fig. 2 is a schematic diagram of a bottom view structure of a coal mining screening device provided by the utility model;
FIG. 3 is a schematic top view of a coal mining screening device according to the present utility model;
fig. 4 is a schematic cross-sectional structure of a coal mining screening device according to the present utility model.
Legend description:
1. an outer frame; 101. a rotating rod; 102. a rotating handle; 103. square holes; 2. a coal mine screening box; 201. a feed inlet; 202. a first screen plate; 203. a second screen plate; 204. a discharge port; 3. a motor; 301. a fixing plate; 302. a circular shaft; 303. a cam; 4. a round bar; 401. a slide plate; 402. an L-shaped plate; 403. a convex groove; 404. a circular ring; 5. a U-shaped frame; 501. a movable rod; 502. a telescopic rod; 503. and a return spring.
Detailed Description
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.
Referring to fig. 1-4, the present utility model provides a technical solution: a coal mining screening device comprising: the coal mine screening box 2 is arranged in the middle of the outer frame 1, two fixing plates 301 are symmetrically and fixedly arranged on one side, close to the bottom, of the outer frame 1, round shafts 302 are movably embedded on the opposite sides of the two fixing plates 301, cams 303 are sleeved on the outer surface of each round shaft 302, one side of each fixing plate 301 is fixedly provided with a motor 3, the output end of each motor 3 is fixedly arranged at one end of each round shaft 302, a square hole 103 is formed in one side, close to the top, of the outer frame 1, a round rod 4 is fixedly arranged on the opposite side, close to one end, of each square hole 103, of the outer frame 1, a sliding plate 401 is movably sleeved on one end, close to the bottom, of each sliding plate 401, of each protruding groove 403 is movably embedded with an L-shaped plate 402, one end of each L-shaped plate 402 is fixedly provided with a round block, and one side of each L-shaped plate 402 is fixedly arranged on one side, close to the bottom of the coal mine screening box 2.
As shown in fig. 1-4, the opposite sides of the outer frame 1, which are close to one end, are respectively movably embedded with a rotating handle 102, one sides of the two rotating handles 102 are respectively and fixedly installed on the opposite sides of the coal mine screening box 2, which are close to the other end, and the opposite sides of the outer frame 1, which are close to the other end, are respectively and movably embedded with a rotating rod 101, one ends of the two rotating rods 101 are respectively and fixedly installed on the opposite sides of the coal mine screening box 2, which are close to the other end, when the coal mine screening box 2 is close to one end of the rotating handle 102, the coal mine screening box 2 rotates around the rotating rod 101, and the rotating handle 102 is synchronously rotated, so that the coal mine screening box 2 can vibrate up and down around the rotating rod 101.
As shown in fig. 1-4, two U-shaped frames 5 are symmetrically and fixedly installed at the bottom of the outer frame 1 close to the inner wall of one end, movable rods 501 are movably embedded in opposite sides of two support arms of the two U-shaped frames 5, telescopic rods 502 are fixedly sleeved on the outer surfaces of the two movable rods 501, return springs 503 are movably sleeved on the outer surfaces of the two telescopic rods 502, one ends of the two return springs 503 are respectively and fixedly installed on the outer surfaces of the two movable rods 501, the other ends of the two return springs 503 are respectively and symmetrically and fixedly installed at the bottom of the coal mine screening box 2 close to one end, when the coal mine screening box 2 descends, the telescopic rods 502 are contracted, the return springs 503 are synchronously compressed, and under the cooperation of the movable rods 501, the telescopic rods 502 and the return springs 503 follow the coal mine screening box 2 to change angles, so that under the mutual cooperation of the telescopic rods 502 and the return springs 503, when the coal mine screening box 2 vibrates up and down, the impact force on the first screen plate 202 and the second screen plate 203 is slowed down, the damage to the first screen plate 202 and the second screen plate 203 is avoided, and the service life of the first screen plate 202 and the second screen plate 203 is prolonged.
As shown in fig. 1-4, the inner wall of the coal mine screening box 2 near the top is fixedly provided with a first screen plate 202, the inner wall of the coal mine screening box 2 near the bottom is fixedly provided with a second screen plate 203, and the arrangement of the first screen plate 202 and the second screen plate 203 realizes multistage screening of coal.
As shown in fig. 1-4, a feed inlet 201 is fixedly installed at one end of the top of a coal mine screening box 2, the feed inlet 201 is communicated with the coal mine screening box 2, a discharge outlet 204 is formed at the other end of the coal mine screening box 2, coal is conveniently poured into the coal mine screening box 2 through the arrangement of the feed inlet 201, screening is performed through a first screen plate 202 and a second screen plate 203, and a conveyor belt is connected to different screening layers of the discharge outlet 204, so that screened coal is transferred and collected.
As shown in fig. 1-4, a circular ring 404 is movably embedded in the convex groove 403, and the circular ring 404 is fixedly sleeved on the outer surface of the circular block, so that friction between the circular ring 404 and the inner wall of the sliding plate 401 is reduced under the action of the circular ring 404 and the circular block.
Working principle: when in use, coal to be screened is added into the coal mine screening box 2 through the feed inlet 201, the motor 3 is synchronously started, the output shaft of the motor drives the circular shaft 302 to rotate, so that the cam 303 rotates, the sliding plate 401 is pushed upwards through the rotation of the cam 303, the sliding plate 401 slides upwards along the round rod 4, the L-shaped plate 402 and the circular ring 404 synchronously move upwards, the coal mine screening box 2 is driven to rotate around the rotating rod 101, at the moment, the L-shaped plate 402 and the circular ring 404 are pulled to move to one side along the convex groove 403 due to the upwards rotation of the coal mine screening box 2, friction between the circular ring 404 and the inner wall of the sliding plate 401 is reduced under the action of the circular ring 404 and the circular block, the rotating handle 102 is synchronously rotated, and the rotating handle 102 is supported by a certain degree, so that the inclination angle of the coal mine screening box 2 is improved, and the speed of the coal on the bottoms of the first sieve plate 202, the second sieve plate 203 and the coal mine screening box 2 can be accelerated to one side, and through the action of the cam 303, the coal screening box 2 can be repeatedly lifted and lowered, so that the first screen plate 202, the second screen plate 203 and the coal on the bottom of the coal screening box 2 vibrate, the blocking phenomenon is reduced by the speed of the coal rolling on the screen plates, the production efficiency of coal screening is improved, when the coal screening box 2 descends downwards, the telescopic rod 502 is contracted, the return spring 503 is synchronously compressed, and under the cooperation of the movable rod 501, the telescopic rod 502 and the return spring 503 follow the change of the angle of the coal screening box 2, thus under the cooperation of the telescopic rod 502 and the return spring 503, the impact force on the first screen plate 202 and the second screen plate 203 is slowed down when the coal screening box 2 vibrates upwards and downwards, the first screen plate 202 and the second screen plate 203 are prevented from being damaged, the service lives of the first sieve plate 202 and the second sieve plate 203 are prolonged, and the screened coal is transferred and collected by connecting the conveyor belt to different screening layers of the discharge hole 204.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (6)
1. A coal mining screening device, comprising: outer frame (1) and colliery screening box (2), colliery screening box (2) set up in the centre of outer frame (1), one side symmetry fixed mounting that outer frame (1) is close to the bottom has two fixed plates (301), two the opposite side activity of fixed plate (301) is inlayed and is equipped with circle axle (302), the fixed cover of surface of circle axle (302) is equipped with cam (303), one of them one side fixed mounting of fixed plate (301) has motor (3), the one end at circle axle (302) is fixed to the output of motor (3), square hole (103) have been seted up to one side that outer frame (1) is close to the top, square hole (103) are close to one side fixed mounting round bar (4) of opposite side of one end, the one end movable sleeve of round bar (4) is equipped with slide (401), protruding type groove (403) have been seted up to one end activity at slide (401) top, the one end fixed mounting of one end of L template (402) bottom has circle piece, one side fixed mounting of L template (402) is close to one side of screening box (2) of colliery.
2. A coal mining screening apparatus according to claim 1, wherein: the utility model discloses a coal mine screening box, including outer frame (1), rotatory handle (102) are all inlayed to the activity of the opposite side that is close to one end, two one side of rotatory handle (102) is fixed mounting respectively in the opposite side that coal mine screening box (2) is close to one end, the opposite side that outer frame (1) is close to the other end is all movably inlayed and is equipped with bull stick (101), two the one end of bull stick (101) is fixed mounting respectively in the opposite side that coal mine screening box (2) is close to the other end.
3. A coal mining screening apparatus according to claim 2, wherein: the outer frame (1) is close to the bottom symmetry fixed mounting of one end inner wall and has two U type framves (5), two the relative one side of two support arms of U type frame (5) all moves about and inlays and be equipped with movable rod (501), two the equal fixed cover of surface of movable rod (501) is equipped with telescopic link (502), two the equal movable cover of surface of telescopic link (502) is equipped with reset spring (503), two the one end of reset spring (503) is fixed mounting respectively at the surface of two movable rods (501), two the other end of reset spring (503) is symmetrical fixed mounting respectively in the bottom that colliery screening case (2) is close to one end.
4. A coal mining screening apparatus according to claim 3, wherein: the coal mine screening box (2) is fixedly provided with a first screen plate (202) close to the inner wall of the top, and the coal mine screening box (2) is fixedly provided with a second screen plate (203) close to the inner wall of the bottom.
5. The coal mining screening device according to claim 4, wherein: one end fixed mounting at colliery screening case (2) top has feed inlet (201), feed inlet (201) are linked together with colliery screening case (2), the other end of colliery screening case (2) is provided with discharge gate (204).
6. A coal mining screening apparatus according to claim 1, wherein: the inside activity of protruding groove (403) is inlayed and is equipped with ring (404), ring (404) fixed cover is established at the surface of button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320134643.XU CN219540941U (en) | 2023-02-07 | 2023-02-07 | Coal mining screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320134643.XU CN219540941U (en) | 2023-02-07 | 2023-02-07 | Coal mining screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219540941U true CN219540941U (en) | 2023-08-18 |
Family
ID=87707870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320134643.XU Active CN219540941U (en) | 2023-02-07 | 2023-02-07 | Coal mining screening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219540941U (en) |
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2023
- 2023-02-07 CN CN202320134643.XU patent/CN219540941U/en active Active
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