Coal cleaning equipment with vibration function

Abstract

This invention relates to the field of vibratory coal preparation, and more particularly to a coal preparation device with a vibration function. In existing coal vibratory screening machines, the screens are mostly fixed inside the device using screws and bolts. During vibration, these screws may loosen, causing the screen to loosen. Once the screen loosens, it not only affects the screening effect but may also lead to equipment malfunction. The invention includes an outer shell with self-locking devices on both sides of the rear end. The self-locking devices include two main protective shells symmetrically fixed to the outside of the outer shell. The outer shell has through holes relative to the main protective shells. Two fixing sleeves are symmetrically fixed inside the main protective shells, and sliding columns are slidably connected inside the fixing sleeves. The screening screen pushes a trigger block, causing the support slider to move into the fixing shell, releasing the support of the linkage block. Under the action of a third return spring, the locking column penetrates the screening screen downwards.

Description

Technical Field

[0001] This invention relates to the field of vibration coal preparation, and more particularly to a coal preparation device with vibration function. Background Technology

[0002] Coal vibrating screens are widely used in industries that require processing large quantities of coal, such as thermal power plants and steel mills. In thermal power plants, this equipment effectively removes non-combustible materials such as stones and metal fragments from coal piles, ensuring the stability and safety of subsequent combustion processes. Coal vibrating screens offer highly efficient screening capabilities, effectively reducing labor intensity and improving coal utilization, playing a vital role in the coal processing industry.

[0003] In existing coal vibrating screens, the screens are mostly fixed inside the device by screws and bolts. During vibration, the screws may loosen, causing the screen to loosen. Once the screen loosens, it will not only affect the screening effect, but may also cause equipment failure or even safety accidents. Moreover, replacing the screen requires removing a large number of screws before removing the screen, which is a cumbersome process. Similarly, installing a new screen also requires a cumbersome operation. This series of operations increases the time required to replace the screen and affects the overall work efficiency. Summary of the Invention

[0004] (1) Technical problems to be solved In order to overcome the shortcomings of loose screens and cumbersome replacement procedures, the present invention aims to provide a coal preparation equipment with vibration function.

[0005] (2) Technical solution To solve the above-mentioned technical problems, the present invention provides a coal preparation equipment with vibration function, including an outer shell, the outer shell having self-locking devices on both sides of its rear end, the self-locking devices including two main protective shells, the two main protective shells being symmetrically fixedly connected to the outside of the outer shell, the outer shell having through holes relative to the main protective shells, two fixing sleeves being symmetrically fixedly connected inside the main protective shells, and a sliding column being slidably connected inside the fixing sleeves, one end of the sliding column being fixedly connected to a trigger spring, the other end of the trigger spring being fixedly connected to the side wall of the main protective shell, and the side of the sliding column being fixedly connected to... An L-shaped rod is attached. A square through hole is opened on the side of the fixed sleeve relative to the position of the L-shaped rod. The L-shaped rod is slidably connected in the square through hole on the side of the fixed sleeve. Two limiting blocks are symmetrically fixedly connected inside the main protective shell and located inside the through hole of the outer shell. Two square sliding grooves are symmetrically opened in the middle of the limiting blocks. The L-shaped rod is slidably connected in the square sliding groove of the limiting block. A sliding plate is fixedly connected to the other end of the L-shaped rod. A movable baffle is fixedly connected to the upper side of the sliding plate. The sliding plate and the movable baffle are slidably connected to the side of the limiting block. Two locking pins are symmetrically fixedly connected to the other side of the sliding plate.

[0006] Preferably, two guide blocks are symmetrically fixedly connected to the inner side of the main protective shell, and a trigger shell is slidably connected to the outer side of the guide blocks. A push spring is fixedly connected between the end face of the guide blocks and the inner side of the trigger shell. Two square through holes are opened on the upper and lower sides of the trigger shell at the relative positions of the sliding column. The sliding column is slidably connected in the square through holes of the trigger shell. The trigger shell is slidably connected between the two limiting blocks. An upper clamping plate is fixedly connected to the side of the upper limiting block, and a lower clamping plate is fixedly connected to the side of the lower limiting block. The upper clamping plate and the lower clamping plate are fixedly connected to the inner side of the outer shell, and a screening screen is slidably connected between the upper clamping plate and the lower clamping plate.

[0007] Preferably, a side protective shell is fixedly connected to the side of the main protective shell, and a push-pull shell is fixedly connected to the side of the side protective shell. A through hole is provided on the side of the push-pull shell, and a push-pull handle is slidably connected to the inside of the through hole. A push-pull slider is fixedly connected to the end of the push-pull handle, and the push-pull slider is slidably connected inside the push-pull shell. A through hole is provided on the upper side of the push-pull shell, and a locking rod is slidably connected to the inside of the through hole. A second return spring is fixedly connected to the end of the locking rod. A protruding sleeve is fixedly connected to the outer side of the side protective shell, and the other end of the second return spring is fixedly connected to the inside of the protruding sleeve on the outer side of the side protective shell. A first return spring is fixedly connected to the middle of the push-pull slider, and a fixing plate is fixedly connected to the other end of the first return spring. The fixing plate is fixedly connected inside the side protective shell. A square through hole is provided on the side protective shell relative to the position of the push-pull slider, and the push-pull slider is slidably connected inside the square through hole of the side protective shell. The push-pull slider passes through the side protective shell and is slidably connected to the fixing plate.

[0008] Preferably, two connecting plates are symmetrically slidably connected inside the side protective shell. A connecting rod is fixedly connected to the side of the connecting plate. A square groove is opened on the side of the connecting rod. The connecting rod is slidably connected to the square groove of the fixed sleeve. The connecting rod is also fixedly connected to the side of the sliding column inside the fixed sleeve. A push-pull rod is fixedly connected to the side of the connecting plate. The push-pull rod is slidably connected to the pushing slider.

[0009] Preferably, locking devices are provided on both sides of the front end of the outer shell. The locking devices include two fixed shells, which are symmetrically fixedly connected to the two sides of the outer shell. A locking link is slidably connected to the side of the fixed shell. A square through hole is opened on the side of the fixed shell and on the side of the locking link. A sliding handle is slidably connected in the square through hole of the fixed shell. A linkage block is fixedly connected to one end of the sliding handle inside the fixed shell. The linkage block is slidably connected to the fixed shell. A linkage plate is fixedly connected to the side of the linkage block. Two locking pins are symmetrically fixedly connected to the lower side of the linkage plate. A third return spring is fixedly connected to the lower side of the linkage plate and between the two locking pins. The lower end of the third return spring is fixedly connected to the lower side of the upper clamping plate. A through hole is opened on the upper clamping plate at the position opposite to the locking pin. The locking pin is slidably connected to the inside of the through hole of the upper clamping plate.

[0010] Preferably, a trigger block is slidably connected inside the fixed shell, and two fourth return springs are symmetrically fixedly connected to the side of the trigger block. The other end of the fourth return spring is fixedly connected inside the fixed shell, and a support slider is fixedly connected to the upper side of the trigger block.

[0011] Preferably, a locking shell is fixedly connected to the lower side of the fixed shell and inside the outer shell. The side of the locking shell has a through hole, and a push-pull connecting rod is slidably connected inside the through hole of the locking shell. A linkage rod is fixedly connected to the side of the push-pull connecting rod inside the locking shell. A groove is formed on the locking shell relative to the linkage rod. The side of the linkage rod is slidably connected to the groove inside the locking shell by a slider. A limit post is fixedly connected to the other end of the linkage rod. A circular blind hole is formed on the locking post relative to the position of the limit post and the push-pull connecting rod. The limit post and the push-pull connecting rod are slidably connected inside the blind hole of the locking post.

[0012] Preferably, a feed inlet is fixedly connected to the upper side of the outer shell, and a support device is provided on the lower side of the outer shell. The support device includes a base plate, and four fixed support frames are symmetrically fixedly connected to the upper side of the base plate and on both sides of the outer shell. A vibration device is provided on the fixed support frame, and the vibration device includes a motor. The motor is fixedly connected to the two fixed support frames located on the right side of the outer shell through a bracket. A rotating connecting rod is fixedly connected to the output end of the motor. A rotating cam is fixedly connected to the outer side of the rotating connecting rod. A mating plate is slidably connected to the side of the rotating cam, and the mating plate is fixedly connected to the outer side of the outer shell.

[0013] Preferably, a fixed cover is fixedly connected to the outer side of the housing at a position opposite to the rotating cam. Fixed blocks are fixedly connected to both sides of the fixed cover, and the fixed blocks are fixedly connected to the outer side of the housing. A vibration plate is fixedly connected to the lower end of the fixed block. The vibration plate is fixedly connected to the outer side of the housing. Two support springs are symmetrically fixedly connected to the lower side of the vibration plate. A vibration support frame is fixedly connected to the lower end of the support springs. The lower end of the vibration support frame is fixedly connected to the base plate.

[0014] Preferably, two protective sleeves are symmetrically fixedly connected to the inner side of the housing. The rotating connecting rod passes through the housing and the protective sleeve and is also fixedly connected to the rotating cam on the outer side of the left side of the housing. The end of the rotating connecting rod located on the outer left side of the housing is rotatably connected to a support block. The lower side of the support block is fixedly connected to the fixed support frame located on the left side of the housing.

[0015] (3) Beneficial effects 1. The screening screen pushes the trigger block and drives the support slider to move into the fixed shell, releasing the support of the linkage block. Under the action of the third reset spring, the locking pin penetrates the screening screen downwards, locking one end of the screening screen. At the same time, the screening screen pushes the trigger shell, so the sliding pin can drive the locking pin to move into the screening screen, locking the other end of the screening screen. This can quickly lock the screening screen inside the device, reducing the installation time of the screening screen. 2. By pushing the push-pull handle, the slider is pushed to push the push-pull rods on both sides and move the connecting plate away from the fixed plate. At the same time, the sliding column in the fixed sleeve is moved to both sides, and the locking column is moved away from the screen, thereby releasing the restriction on the rear end of the screen. Simultaneously, pushing the sliding handle upward will move the locking link away from the screen, thereby releasing the restriction on the front end of the screen. This can quickly release the restriction on the screen, thereby achieving rapid removal of the screen and speeding up the removal efficiency. 3. The screening screen is quickly locked by the locking column and the locking post, thus quickly fixing the screening screen inside the device, reducing the probability of the screening screen loosening during device vibration, and making the screening process more stable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the vibration device structure of the present invention. Figure 3 This is a schematic diagram of the rotating cam structure of the present invention; Figure 4 This is a cross-sectional view of the upper clamping plate of the present invention; Figure 5 This is a cross-sectional view of the main protective shell of the present invention; Figure 6 This is a cross-sectional view of the trigger shell of the present invention; Figure 7 This is a cross-sectional view of the locking shell of the present invention; Figure 8 This is a cross-sectional view of the fixed shell of the present invention; Figure 9 This is a schematic diagram of the rotating connecting rod structure of the present invention.

[0017] The labels in the attached diagram are as follows: 1-Outer shell, 101-Screening screen, 102-Fixing block, 103-Vibrating plate, 104-Upper clamping plate, 105-Lower clamping plate, 106-Protective sleeve, 107-Feed inlet, 2-Vibrating device, 201-Motor, 202-Rotating connecting rod, 203-Fixing cover, 204-Rotating cam, 205-Matching plate, 206-Support block, 3-Self-locking device, 301-Main protective shell, 302-Side protective shell, 303-Push-pull handle, 304-Moving baffle, 305-Sliding plate, 306-Locking pin, 307-Fixing sleeve, 308-Trigger spring, 309-Sliding pin, 310-L-shaped rod, 311-Connecting plate, 312-Push-pull rod, 313-Fixing plate, 314-Trigger shell, 315-Limiting block, 31 6-Push slider, 317-First return spring, 318-Locking link, 319-Second return spring, 320-Guide block, 321-Push-pull shell, 322-Protruding sleeve, 323-Connecting rod, 324-Push spring, 4-Locking device, 401-Fixed shell, 402-Locking link, 403-Sliding handle, 404-Connecting plate, 405-Locking post, 406-Locking shell, 407-Trigger block, 408-Push-pull link, 409-Connecting rod, 410-Limiting post, 411-Third return spring, 412-Sliding baffle, 413-Connecting block, 414-Support slider, 415-Fourth return spring, 5-Support device, 501-Fixed support frame, 502-Vibration support frame, 503-Support spring, 504-Base plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0019] A coal preparation device with vibration function, such as Figures 1-6As shown, the device includes an outer shell 1. Self-locking devices 3 are provided on both sides of the rear end of the outer shell 1. Each self-locking device 3 includes two main protective shells 301, which are symmetrically fixedly connected to the outside of the outer shell 1. The outer shell 1 has through holes relative to the positions of the main protective shells 301. Two fixing sleeves 307 are symmetrically fixedly connected inside the main protective shells 301. A sliding post 309 is slidably connected inside the fixing sleeve 307. A trigger spring 308 is fixedly connected to one end of the sliding post 309, and the other end of the trigger spring 308 is fixedly connected to the side wall of the main protective shell 301. An L-shaped rod 310 is fixedly connected to the side of the sliding post 309. A square through hole is provided on the side of the fixing sleeve 307 relative to the position of the L-shaped rod 310. The L-shaped rod 310 is slidably connected to the square through hole on the side of the fixing sleeve 307. Inside the through hole, two limiting blocks 315 are symmetrically fixedly connected inside the main protective shell 301 and inside the through hole of the outer shell 1. Two square sliding grooves are symmetrically opened in the middle of the limiting blocks 315. An L-shaped rod 310 is slidably connected in the square sliding groove of the limiting block 315. A sliding plate 305 is fixedly connected to the other end of the L-shaped rod 310. A movable baffle 304 is fixedly connected to the upper side of the sliding plate 305. When the movable baffle 304 moves closer to the middle of the main protective shell 301, it will completely cover the side of the limiting block 315 facing the inside of the outer shell, thereby preventing material fragments generated during vibration from entering the interior of the limiting block 315. The sliding plate 305 and the movable baffle 304 are slidably connected to the side of the limiting block 315. Two locking pins 306 are symmetrically fixedly connected to the other side of the sliding plate 305.

[0020] like Figures 4-6 As shown, two guide blocks 320 are symmetrically fixedly connected to the inner side of the main protective shell 301. A trigger shell 314 is slidably connected to the outer side of the guide blocks 320. The trigger shell 314 is inclined relative to the side of the screening screen 101. When the screening screen 101 contacts the trigger shell 314, the screening screen 101 can push the trigger shell 314 into the main protective shell 301 through the trigger shell 314. A push spring 324 is fixedly connected between the end face of the guide block 320 and the inner side of the trigger shell 314. Two square through holes are opened on the upper and lower sides of the trigger shell 314 at the relative positions of the sliding column 309. The sliding column 309 is slidably connected to... The trigger housing 314 is connected to the square through hole in the trigger housing 314. The trigger housing 314 is slidably connected between two limiting blocks 315. The upper limiting block 315 is fixedly connected to the side of the upper clamping plate 104, and the lower limiting block 315 is fixedly connected to the side of the lower clamping plate 105. The upper clamping plate 104 and the lower clamping plate 105 are fixedly connected to the inside of the outer shell 1, and a screening screen 101 is slidably connected between the upper clamping plate 104 and the lower clamping plate 105. The upper clamping plate 104 and the lower clamping plate 105 are provided with circular through holes at the opposite positions of the locking pin 306. The locking pin 306 is slidably connected in the circular through holes of the upper clamping plate 104 and the lower clamping plate 105.

[0021] like Figure 5 , Figure 6 As shown, a side protective shell 302 is fixedly connected to the side of the main protective shell 301. A push-pull shell 321 is fixedly connected to the side of the side protective shell 302. A through hole is provided on the side of the push-pull shell 321. A push-pull handle 303 is slidably connected to the inside of the through hole. A push slider 316 is fixedly connected to the end of the push-pull handle 303. The push slider 316 is slidably connected inside the push-pull shell 321. A through hole is provided on the upper side of the push-pull shell 321. A through hole is also provided on the upper side of the push slider 316. A locking link 318 is slidably connected to the inside of the through hole of the push-pull shell 321. A second return spring 319 is fixedly connected to the end of the locking link 318. A protruding sleeve 322 is fixedly connected to the outer side of the side protective shell 302. The other end of the second return spring 319 is fixedly connected to the outer side of the side protective shell 302. Inside the protruding sleeve 322 on the side, the part of the push slider 316 located inside the side protective shell 302 is divided into upper and lower sides with a certain distance between them. The middle part of the push slider 316 is fixedly connected to a first return spring 317. The other end of the first return spring 317 is fixedly connected to a fixing plate 313. The fixing plate 313 is fixedly connected inside the side protective shell 302. The side protective shell 302 has a square through hole relative to the position of the push slider 316. The push slider 316 is slidably connected inside the square through hole of the side protective shell 302. The middle part of the push slider 316 has a square groove relative to the position of the fixing plate 313. The push slider 316 has inclined surfaces in both the upper and lower parts of the square groove. The push slider 316 passes through the side protective shell 302 and is slidably connected to the fixing plate 313.

[0022] like Figure 6 As shown, two connecting plates 311 are symmetrically slidably connected inside the side protective shell 302. A connecting rod 323 is fixedly connected to the side of the connecting plate 311. A square groove is opened on the side of the fixing sleeve 307 relative to the position of the connecting rod 323. The connecting rod 323 is slidably connected to the square groove of the fixing sleeve 307. The connecting rod 323 is also fixedly connected to the side of the sliding column 309 inside the fixing sleeve 307. A push-pull rod 312 is fixedly connected to the opposite side of the connecting plate 311. The push-pull rod 312 is slidably connected to the push slider 316. The end of the push-pull rod 312 is hemispherical. An arc-shaped groove is opened in the middle of the inclined surface of the push slider 316. The end of the push-pull rod 312 cooperates with the arc-shaped groove of the inclined surface of the push slider 316, thereby reducing the friction between the push-pull rod 312 and the push slider 316.

[0023] like Figure 7 , Figure 8As shown, locking devices 4 are provided on both sides of the front end of the outer casing 1. Each locking device 4 includes two fixed housings 401, which are symmetrically fixedly connected to the two sides of the outer casing 1. A locking link 402 is slidably connected to the side of each fixed housing 401. A square through hole is provided on the side of each fixed housing 401, located on one side of the locking link 402. A sliding handle 403 is slidably connected within the square through hole of each fixed housing 401. A blind hole is provided on the opposite side of the sliding handle 403, located on one side of the locking link 402. When the locking link 402 is in the corresponding position, it is slidably connected within the blind hole of the sliding handle 403. A linkage block 413 is fixedly connected to one end of the sliding handle 403 inside the fixed housing 401. The linkage block 413 and the fixed housing 401 are... 1. A sliding connection is provided. A connecting plate 404 is fixedly connected to the side of the connecting block 413. A sliding baffle 412 is fixedly connected to the upper side of the connecting plate 404. Two locking pins 405 are symmetrically fixedly connected to the lower side of the connecting plate 404. A third return spring 411 is fixedly connected to the lower side of the connecting plate 404 and between the two locking pins 405. The lower end of the third return spring 411 is fixedly connected to the lower side of the upper clamping plate 104. The upper clamping plate 104 and the lower clamping plate 105 have through holes at the opposite positions of the locking pins 405. The locking pins 405 are slidably connected to the inside of the through holes of the upper clamping plate 104. The screening screen 101 has through holes at the opposite positions of the locking pins 405. The locking pins 405 are slidably connected to the inside of the through holes of the screening screen 101.

[0024] like Figure 8 As shown, a trigger block 407 is slidably connected inside the fixed shell 401. One side of the trigger block 407 is an inclined surface, and two fourth reset springs 415 are symmetrically fixedly connected to the other side of the trigger block 407. The other end of the fourth reset spring 415 is fixedly connected inside the fixed shell 401. A support slider 414 is fixedly connected to the upper side of the trigger block 407. The linkage block 413 is slidably connected to the upper side of the support slider 414 when in a relative position.

[0025] like Figure 7 As shown, a locking shell 406 is fixedly connected to the lower side of the fixed shell 401 and inside the outer shell 1. One end of the locking shell 406 is fixedly connected to the lower clamping plate 105. A through hole is opened on the side of the locking shell 406. A push-pull connecting rod 408 is slidably connected inside the through hole of the locking shell 406. A connecting rod 409 is fixedly connected to the side of the push-pull connecting rod 408 inside the locking shell 406. A sliding groove is opened in the locking shell 406 relative to the position of the connecting rod 409. The side of the connecting rod 409 is slidably connected to the sliding groove inside the locking shell 406 by a slider. A limit post 410 is fixedly connected to the other end of the connecting rod 409. A circular blind hole is opened in the locking post 405 relative to the position of the limit post 410 and the push-pull connecting rod 408. The limit post 410 and the push-pull connecting rod 408 are slidably connected inside the blind hole of the locking post 405.

[0026] like Figure 1 , Figure 2 As shown, a feed inlet 107 is fixedly connected to the upper side of the outer shell 1, and a support device 5 is provided on the lower side of the outer shell 1. The support device 5 includes a base plate 504. Four fixed support frames 501 are symmetrically fixedly connected to the upper side of the base plate 504 and located on both sides of the outer shell 1. A vibration device 2 is provided on the fixed support frame 501. The vibration device 2 includes a motor 201. The motor 201 is fixedly connected to the two fixed support frames 501 located on the right side of the outer shell 1 through a bracket. A rotating connecting rod 202 is fixedly connected to the output end of the motor 201. A rotating cam 204 is fixedly connected to the outer side of the rotating connecting rod 202. A mating plate 205 is slidably connected to the side of the rotating cam 204. The mating plate 205 reciprocates under the rotation of the rotating cam 204. The mating plate 205 is fixedly connected to the outer side of the outer shell 1.

[0027] like Figure 3 As shown, a fixed cover 203 is fixedly connected to the outer side of the outer shell 1 at a position opposite to the rotating cam 204. Fixed blocks 102 are fixedly connected to both sides of the fixed cover 203, and the fixed blocks 102 are fixedly connected to the outer side of the outer shell 1. A vibration plate 103 is fixedly connected to the lower end of the fixed block 102. The vibration plate 103 is fixedly connected to the outer side of the outer shell 1. Two support springs 503 are symmetrically fixedly connected to the lower side of the vibration plate 103. A vibration support frame 502 is fixedly connected to the lower end of the support springs 503. The lower end of the vibration support frame 502 is fixedly connected to the bottom plate 504.

[0028] like Figure 9 As shown, two protective sleeves 106 are symmetrically fixedly connected to the inner side of the outer shell 1. A rotating cam 204 is also fixedly connected to the outer side of the outer shell 1, which passes through the outer shell 1 and the protective sleeves 106 and is located on the left side of the outer shell 1. A support block 206 is rotatably connected to the end of the rotating cam 202 located on the left side of the outer shell 1. The lower side of the support block 206 is fixedly connected to the fixed support frame 501 located on the left side of the outer shell 1.

[0029] Working principle: When screening is required, coal is fed into the outer shell 1 through the feed inlet 107 and the motor 201 on the right side of the outer shell 1 is started. At this time, the output end of the motor 201 drives the rotating connecting rod 202 to rotate, and drives the rotating cam 204 to rotate. The rotating cam 204 squeezes the mating plate 205 to drive the outer shell 1 to reciprocate. At this time, the outer shell 1 drives the side vibrating plate 103 to reciprocate. Under the action of the vibrating plate 103, the outer shell 1 vibrates and drives the screening screen 101 inside the outer shell 1 to vibrate, thereby achieving the vibration screening of coal.

[0030] During use, the screening screen 101 can be replaced according to actual needs to meet different coal screening standards. When the screening screen 101 needs to be removed and replaced, the push-pull handle 303 is pushed into the side protective shell 302. The push-pull handle 303 drives the push slider 316 to move into the side protective shell 302. The push slider 316 is pushed up and down by the push-pull rods 312 on both sides of the inclined plane. The movement of the push-pull rods 312 causes the connecting plate 311 to move away from the fixed plate 313. At this time, the connecting plate 311 drives the connecting rods 323 to move in the same square direction. The two connecting rods 323 drive the sliding columns 309 in the two fixed sleeves 307 to move up and down and squeeze the trigger spring 308. At this time, the sliding columns 309 drive the L-shaped rods 310 on both sides to slide out from the square through holes of the trigger shell 314 and move away from the trigger shell 314. L-shaped rod 310 drives sliding plate 305 to move in the same direction. Sliding plate 305 drives locking pin 306 to move away from screening screen 101. At this time, locking pin 306 slides out from the circular through hole of upper clamping plate 104, lower clamping plate 105 and screening screen 101. Second reset spring 319 pushes locking link 318 downward, so that locking link 318 slides into the through hole opened on the upper side of push slider 316, limiting push slider 316, thereby releasing the restriction on screening screen 101.

[0031] At this point, pull the push-pull linkage 408 outwards, causing the linkage 409 and the limiting post 410 to move away from the locking post 405, thereby releasing the restriction on the locking post 405. Then, push the sliding handle 403 upwards, causing the linkage block 413 to move upwards and the linkage plate 404 to move in the same direction. The linkage plate 404 and the locking post 405 move upwards under the action of the linkage plate 404. The locking post 405 slides out from the through holes of the upper clamping plate 104, the lower clamping plate 105, and the screening screen 101, thereby releasing the restriction of the locking post 405 on the screening screen 101. During the upward sliding process of the linkage block 413… The linkage block 413 slides along the side of the support slider 414. When the linkage block 413 slides to the top of the support slider 414 and the screening screen 101 is completely pulled out from the upper clamping plate 104 and the lower clamping plate 105, the fourth reset spring 415 releases its elastic force to push the trigger block 407 to move to the outside of the fixed shell 401, so that the support slider 414 moves to the bottom of the linkage block 413. The support slider 414 supports and limits the linkage block 413. When the sliding handle 403 moves up to the corresponding position, the locking link 402 is pushed towards the sliding handle 403 to limit the sliding handle 403 to the corresponding position, thereby releasing the restriction on the screening screen 101.

[0032] Once the restriction is lifted, the screening screen 101 is removed. At this time, under the action of the spring 324 between the guide block 320 and the trigger shell 314, the trigger shell 314 is moved away from the main protective shell 301, thus resetting the trigger shell 314. Simultaneously, under the action of the fourth reset spring 415, the trigger block 407 is pushed away from the fixed shell 401. At this time, the trigger block 407 drives the support slider 414 to move in the same direction, thus resetting the trigger block 407.

[0033] When the screening screen 101 needs to be installed, first push the screening screen 101 into the housing 1 along the gap between the upper clamping plate 104 and the lower clamping plate 105. The screening screen 101 pushes the trigger blocks 407 to both sides of the housing 1. The trigger blocks 407 drive the support slider 414 to move into the fixed housing 401 and compress the fourth return spring 415, thereby releasing the support slider 414 from supporting the linkage block 413. When the screening screen 101 is completely inside the housing 1, move the locking linkage 402 away from the housing 1. When the sliding handle 403 is in position, the third reset spring 411 will pull the connecting plate 404 downward, and at the same time drive the locking pin 405 to move downward. At this time, the locking pin 405 moves downward along the through hole of the upper clamping plate 104, the lower clamping plate 105 and the screening screen 101 and penetrates the limiting hole of the screening screen 101 to insert into the locking shell 406. At this time, push the push-pull connecting rod 408 to insert the connecting rod 409 and the limiting pin 410 into the blind hole at the lower end of the locking pin 405 to lock the screening screen 101.

[0034] Simultaneously, the locking linkage 318 is pushed upwards and the second return spring 319 is squeezed, releasing the restriction on the push slider 316. The push slider 316 will move away from the side protective shell 302 under the action of the first return spring 317, releasing the support on the push-pull rod 312. At this time, under the push of the screening screen 101, the trigger shell 314 moves along the guide block 320 into the main protective shell 301, while squeezing the push spring 324. When the square through holes on the upper and lower sides of the trigger shell 314 are aligned with the sliding column... When positions 309 correspond, the sliding column 309 moves into the trigger housing 314 under the action of the trigger spring 308, and at the same time drives the L-shaped rods 310 on both sides to move closer to the trigger housing 314 along the square through hole of the limiting block 315. The L-shaped rods 310 drive the sliding plate 305 and the locking column 306 to move in the same direction. The locking column 306 is inserted into the through hole of the upper clamping plate 104, the lower clamping plate 105 and the screening screen 101, thereby realizing the locking of the screening screen 101 by the locking column 306.

[0035] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A coal preparation equipment with vibration function, characterized in that, The enclosure includes an outer shell (1). Self-locking devices (3) are provided on both sides of the rear end of the outer shell (1). Each self-locking device (3) includes two main protective shells (301). The two main protective shells (301) are symmetrically fixedly connected to the outside of the outer shell (1). The outer shell (1) has a through hole relative to the position of the main protective shell (301). Two fixing sleeves (307) are symmetrically fixedly connected inside the main protective shell (301). A sliding column (309) is slidably connected inside the fixing sleeve (307). A trigger spring (308) is fixedly connected to one end of the sliding column (309), and the other end of the trigger spring (308) is fixedly connected to the side wall of the main protective shell (301). An L-shaped rod (310) is fixedly connected to the side of the sliding column (309). The side of the fixing sleeve (307) is relative to the L-shaped rod. A square through hole is provided at position (310). The L-shaped rod (310) is slidably connected to the square through hole on the side of the fixed sleeve (307). Two limiting blocks (315) are symmetrically fixedly connected inside the main protective shell (301) and located inside the through hole of the outer shell (1). Two square sliding grooves are symmetrically provided in the middle of the limiting block (315). The L-shaped rod (310) is slidably connected to the square sliding groove of the limiting block (315). A sliding plate (305) is fixedly connected to the other end of the L-shaped rod (310). A movable baffle (304) is fixedly connected to the upper side of the sliding plate (305). The sliding plate (305) and the movable baffle (304) are slidably connected to the side of the limiting block (315). Two locking pins (306) are symmetrically fixedly connected to the other side of the sliding plate (305). Two guide blocks (320) are symmetrically fixedly connected to the inner side of the main protective shell (301). A trigger shell (314) is slidably connected to the outer side of the guide blocks (320). A push spring (324) is fixedly connected between the end face of the guide blocks (320) and the inner side of the trigger shell (314). Two square through holes are opened on the upper and lower sides of the trigger shell (314) at the relative positions of the sliding column (309). The sliding column (309) is slidably connected to the trigger shell (314). Inside the square through hole, the trigger shell (314) is slidably connected between the two limiting blocks (315), wherein the upper limiting block (315) is fixedly connected to the side of the upper clamping plate (104), and the lower limiting block (315) is fixedly connected to the side of the lower clamping plate (105). The upper clamping plate (104) and the lower clamping plate (105) are fixedly connected to the inside of the outer shell (1), and a screening screen (101) is slidably connected between the upper clamping plate (104) and the lower clamping plate (105). A side protective shell (302) is fixedly connected to the side of the main protective shell (301). A push-pull shell (321) is fixedly connected to the side of the side protective shell (302). A through hole is provided on the side of the push-pull shell (321). A push-pull handle (303) is slidably connected to the inside of the through hole. A push slider (316) is fixedly connected to the end of the push-pull handle (303). The push slider (316) is slidably connected to the inside of the push-pull shell (321). A through hole is provided on the upper side of the push-pull shell (321). A locking link (318) is slidably connected to the inside of the through hole of the push-pull shell (321). A second return spring (319) is fixedly connected to the end of the locking link (318). A protruding sleeve (319) is fixedly connected to the outside of the side protective shell (302). 22), the other end of the second return spring (319) is fixedly connected to the inside of the protruding sleeve (322) provided on the outside of the side protective shell (302), the middle part of the push slider (316) is fixedly connected to the first return spring (317), the other end of the first return spring (317) is fixedly connected to the fixing plate (313), the fixing plate (313) is fixedly connected to the inside of the side protective shell (302), the side protective shell (302) has a square through hole relative to the position of the push slider (316), the push slider (316) is slidably connected to the inside of the square through hole of the side protective shell (302), the push slider (316) passes through the side protective shell (302) and is slidably connected to the fixing plate (313); The side protective shell (302) has two symmetrical sliding connecting plates (311) inside. The side of the connecting plate (311) is fixedly connected to a connecting rod (323). The side of the fixed sleeve (307) is provided with a square sliding groove. The connecting rod (323) is slidably connected to the square sliding groove of the fixed sleeve (307). The connecting rod (323) is fixedly connected to the side of the sliding column (309) inside the fixed sleeve (307). The opposite side of the connecting plate (311) is fixedly connected to a push-pull rod (312). The push-pull rod (312) is slidably connected to the push slider (316).

2. A coal preparation equipment with vibration function according to claim 1, characterized in that, Locking devices (4) are provided on both sides of the front end of the outer shell (1). The locking device (4) includes two fixed shells (401). The fixed shells (401) are symmetrically fixedly connected to the two sides of the outer shell (1). A locking rod (402) is slidably connected to the side of the fixed shell (401). A square through hole is opened on the side of the fixed shell (401) and on the side of the locking rod (402). A sliding handle (403) is slidably connected in the square through hole of the fixed shell (401). A linkage block (413) is fixedly connected to one end of the sliding handle (403) inside the fixed shell (401). 413) is slidably connected to the fixed shell (401). A connecting plate (404) is fixedly connected to the side of the connecting block (413). Two locking pins (405) are symmetrically fixedly connected to the lower side of the connecting plate (404). A third return spring (411) is fixedly connected to the lower side of the connecting plate (404) and between the two locking pins (405). The lower end of the third return spring (411) is fixedly connected to the lower side of the upper clamping plate (104). The upper clamping plate (104) has a through hole at the position opposite to the locking pins (405). The locking pins (405) are slidably connected to the inside of the through hole of the upper clamping plate (104).

3. A coal preparation equipment with vibration function according to claim 2, characterized in that, The fixed shell (401) has a trigger block (407) slidably connected inside. Two fourth reset springs (415) are symmetrically fixedly connected to the side of the trigger block (407). The other end of the fourth reset spring (415) is fixedly connected inside the fixed shell (401). A support slider (414) is fixedly connected to the upper side of the trigger block (407).

4. A coal preparation equipment with vibration function according to claim 3, characterized in that, A locking shell (406) is fixedly connected to the lower side of the fixed shell (401) and inside the outer shell (1). A through hole is provided on the side of the locking shell (406). A push-pull linkage (408) is slidably connected inside the through hole of the locking shell (406). A connecting rod (409) is fixedly connected to the side of the push-pull linkage (408) inside the locking shell (406). The locking shell (406) is positioned relative to the connecting rod (409). The linkage rod (409) has a sliding groove, and its side is slidably connected to the sliding groove inside the locking housing (406) via a slider. The other end of the linkage rod (409) is fixedly connected to a limiting post (410). The locking post (405) has a circular blind hole relative to the position of the limiting post (410) and the push-pull linkage (408). The limiting post (410) and the push-pull linkage (408) are slidably connected inside the blind hole of the locking post (405).

5. A coal preparation equipment with vibration function according to claim 4, characterized in that, A feed inlet (107) is fixedly connected to the upper side of the outer shell (1). A support device (5) is provided on the lower side of the outer shell (1). The support device (5) includes a base plate (504). Four fixed support frames (501) are symmetrically fixedly connected to the upper side of the base plate (504) and located on both sides of the outer shell (1). A vibration device (2) is provided on the fixed support frame (501). The vibration device (2) includes a motor (201). The motor (201) is fixedly connected to the two fixed support frames (501) located on the right side of the outer shell (1) by a bracket. A rotating connecting rod (202) is fixedly connected to the output end of the motor (201). A rotating cam (204) is fixedly connected to the outer side of the rotating connecting rod (202). A mating plate (205) is slidably connected to the side of the rotating cam (204). The mating plate (205) is fixedly connected to the outside of the outer shell (1).

6. A coal preparation equipment with vibration function according to claim 5, characterized in that, A fixed cover (203) is fixedly connected to the outer side of the outer shell (1) at a position opposite to the rotating cam (204). Fixed blocks (102) are fixedly connected to both sides of the fixed cover (203), and the fixed blocks (102) are fixedly connected to the outer side of the outer shell (1). A vibration plate (103) is fixedly connected to the lower end of the fixed block (102). The vibration plate (103) is fixedly connected to the outer side of the outer shell (1). Two support springs (503) are symmetrically fixedly connected to the lower side of the vibration plate (103). A vibration support frame (502) is fixedly connected to the lower end of the support springs (503). The lower end of the vibration support frame (502) is fixedly connected to the bottom plate (504).

7. A coal preparation equipment with vibration function according to claim 6, characterized in that, Two protective sleeves (106) are symmetrically fixedly connected to the inner side of the outer shell (1). The rotating connecting rod (202) passes through the outer shell (1) and the protective sleeve (106) and is also fixedly connected to the rotating cam (204) on the outer side of the left side of the outer shell (1). The end of the rotating connecting rod (202) located on the outer side of the left side of the outer shell (1) is rotatably connected to the support block (206). The lower side of the support block (206) is fixedly connected to the fixed support frame (501) located on the left side of the outer shell (1).

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