阅读说明：本技术 一种能有效防止振动筛堵塞的装置 (Device capable of effectively preventing vibrating screen from being blocked ) 是由 李晓娜 闫铁柱 王鹏斐 王晓乐 贺利娜 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种能有效防止振动筛堵塞的装置,包括振动筛本体,振动筛本体两侧竖直设置有固定杆,固定杆顶部通过水平设置的连杆连接,两个固定杆外壁还套设有套筒,两个套筒侧壁沿纵向开设有滑槽,两个滑槽之间设置有滑动板,滑动板上还固定有硬质刮板,滑动板顶部竖直设置有升降杆,升降杆侧壁上设置有直齿齿条；还包括支撑架,支撑架上设置有刮板电机,刮板电机连接有动齿轮,动齿轮与直齿齿条啮合；振动筛本体上还设置有往复式运动机构,用于驱动固定杆在振动筛本体上滑动。使用该振动筛机构,能有效降低振动筛的堵塞情况,自动化效果增强,降低人员工作强度,减少安全隐患,降低人工投资成本,经济节能,提高设备使用年限。(The invention discloses a device capable of effectively preventing a vibrating screen from being blocked, which comprises a vibrating screen body, wherein fixed rods are vertically arranged on two sides of the vibrating screen body, the tops of the fixed rods are connected through a horizontally arranged connecting rod, sleeves are further sleeved on the outer walls of the two fixed rods, sliding grooves are longitudinally formed in the side walls of the two sleeves, a sliding plate is arranged between the two sliding grooves, a hard scraper plate is further fixed on the sliding plate, a lifting rod is vertically arranged at the top of the sliding plate, and a straight rack is arranged on the side wall of the lifting rod; the support frame is provided with a scraper motor, the scraper motor is connected with a moving gear, and the moving gear is meshed with the straight tooth rack; the vibrating screen body is also provided with a reciprocating motion mechanism for driving the fixed rod to slide on the vibrating screen body. The vibrating screen mechanism can effectively reduce the blocking condition of the vibrating screen, enhances the automation effect, reduces the working strength of personnel, reduces potential safety hazards, reduces the labor investment cost, is economical and energy-saving, and prolongs the service life of equipment.)

1. The device capable of effectively preventing the vibrating screen from being blocked is characterized by comprising a vibrating screen body (1), fixing rods (3) are vertically arranged on two sides of the vibrating screen body (1), the tops of the fixing rods (3) are connected through a connecting rod (2) which is horizontally arranged, cylindrical sleeves (4) are further sleeved on the outer walls of the two fixing rods (3), sliding grooves (6) are longitudinally formed in the side walls of the two sleeves (4), a sliding plate (5) is arranged between the two sliding grooves (6), the sliding plate (5) can slide on the sliding grooves (6), a hard scraper (7) is further fixed on the sliding plate (21), a lifting rod (20) is vertically arranged at the top of the sliding plate (21), and a straight rack (11) is arranged on the side wall of the lifting rod (20); still include the support frame, be provided with scraper blade motor (10) on the support frame, be connected with on the motor shaft of scraper blade motor (10) and move gear (9), move gear (9) and straight-tooth rack (11) meshing, still be provided with reciprocating motion mechanism on shale shaker body (1), reciprocating motion mechanism is used for driving dead lever (3) and slides on shale shaker body (1).

2. The device for effectively preventing the vibrating screen from being blocked according to claim 1, wherein the reciprocating mechanism comprises guide rails (14) horizontally arranged along two sides of the vibrating screen body (1), and further comprises sliding blocks (15) arranged at the bottoms of the two fixing rods (3), the sliding blocks (15) can slide along the guide rails (14), a draw bar (16) is vertically arranged on one of the sliding blocks (15), the draw bar (16) faces the outer side of the vibrating screen body (1), gear shafts are further arranged at two ends of one side of the vibrating screen body (1), a master gear (13) and a slave gear (19) are respectively arranged on the gear shafts, the master gear (13) is connected with the slave gear (19) through a chain (12), the master gear (13) is concentrically connected with a reciprocating motor (18), and a chain cross bar (17) is vertically arranged on the chain (12), the end part of the chain cross rod (17) is vertically provided with a longitudinal rod, and the end part of the longitudinal rod is in contact with the traction rod (16).

3. An arrangement effective in preventing clogging of vibrating screens according to claim 2, characterised in that the length of the chain crossbar (17) does not exceed the length of the drawbar (16), the length of the drawbar being 0.67 times the diameter of the main gear (13).

4. An arrangement effective in preventing clogging of vibrating screens according to claim 2, characterised in that the master gear (13), the slave gears (19), the guide rails (14) are arranged coaxially.

5. An apparatus for effectively preventing the clogging of a vibrating screen according to claim 2, characterized in that the guide rail (14) is provided with a limiting plate on both sides.

6. An arrangement effective in preventing clogging of vibrating screens according to claim 1, characterised in that the bottom of the hard scraper (7) is provided with a scraper brush (8).

Technical Field

The invention belongs to the technical field of screening equipment, and particularly relates to a device capable of effectively preventing a vibrating screen from being blocked.

Background

The vibrating screen is a coal slurry screening device at the discharge port of the rod mill, can effectively screen off unqualified large-particle coal slurry, and plays a very important role in the whole production link of the pulping process. When more large particles or lower water content appear in the coal slurry blanking of slurrying system operation in-process, large particles and partial qualified coal slurry just can't in time get into next stage technology through the shale shaker to lead to the shale shaker upper portion to appear more coal slurry and pile up, influence the trafficability characteristic of follow-up qualified coal slurry, thereby influence the normal operating of whole slurrying equipment system. The existing solution is to arrange two workers to monitor the operation conditions on two sides of the vibrating screen in real time when the vibrating screen works, when the coal slurry accumulation phenomenon occurs, the upper part of the vibrating screen is manually cleaned by using a scraper, and a large amount of manpower is required to be input for calculation according to the requirement of two workers for each pulping system.

Disclosure of Invention

The invention aims to provide a device capable of effectively preventing a vibrating screen from being blocked, and solves the problem that the existing vibrating screen is easy to block.

The technical scheme adopted by the invention is that the device capable of effectively preventing the vibrating screen from being blocked comprises a vibrating screen body, wherein fixed rods are vertically arranged on two sides of the vibrating screen body, the tops of the fixed rods are connected through a horizontally arranged connecting rod, cylindrical sleeves are further sleeved on the outer walls of the two fixed rods, sliding grooves are longitudinally formed in the side walls of the two sleeves, a sliding plate is arranged between the two sliding grooves and can slide on the sliding grooves, a hard scraper plate is further fixed on the sliding plate, a lifting rod is vertically arranged at the top of the sliding plate, and a straight rack is arranged on the side wall of the lifting rod; the vibrating screen is characterized by further comprising a supporting frame, a scraper motor is arranged on the supporting frame, a motor shaft of the scraper motor is connected with a moving gear, the moving gear is meshed with a straight tooth rack, a reciprocating motion mechanism is further arranged on the vibrating screen body, and the reciprocating motion mechanism is used for driving the fixing rod to slide on the vibrating screen body.

The present invention is also characterized in that,

the reciprocating motion mechanism comprises guide rails horizontally arranged along two sides of a vibrating screen body, and further comprises sliding blocks arranged at the bottoms of the two fixing rods, the sliding blocks can slide along the guide rails, a traction rod is perpendicularly arranged on one of the sliding blocks, the traction rod faces the outer side of the vibrating screen body, gear shafts are further arranged at two ends of one side of the vibrating screen body, a main gear and a driven gear are respectively arranged on the gear shafts, the main gear is connected with the driven gear through a chain, the main gear is concentrically connected with a reciprocating motor, a chain cross rod is perpendicularly arranged on the chain, a longitudinal rod is vertically arranged at the end of the chain cross rod, and the end of the longitudinal.

The length of the chain cross rod is not more than that of the traction rod, and the length of the longitudinal rod is 0.67 times of the diameter of the main gear.

The main gear, the driven gear and the guide rail are coaxially arranged.

Limiting plates are arranged on two sides of the guide rail.

The bottom of the hard scraper is provided with a scraper brush.

The beneficial effect of the invention is that,

the vibrating screen mechanism can effectively reduce the blocking condition of the vibrating screen, enhances the automation effect, reduces the working strength of personnel, reduces potential safety hazards, reduces the labor investment cost, is economical and energy-saving, and prolongs the service life of equipment.

Drawings

FIG. 1 is a schematic structural view of an apparatus for effectively preventing clogging of a vibrating screen according to the present invention;

fig. 2 is a schematic structural view of a reciprocating mechanism in an apparatus for effectively preventing clogging of a vibrating screen according to the present invention.

In the figure: 1. the vibrating screen comprises a vibrating screen body, a connecting rod, a fixing rod, a sleeve, a sliding plate, a sliding groove, a hard scraper, a scraper brush, a moving gear, a scraper motor, a straight rack, a chain, a main gear, a guide rail, a sliding block, a traction rod, a chain cross rod, a reciprocating motor, a driven gear and a lifting rod, wherein the vibrating screen body comprises 2, the connecting rod, 3, the fixing rod, 4, the sleeve, 5, the sliding plate, 6, the sliding groove, 7, the hard scraper, 8, the moving gear, 10, the scraper motor, 11.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention relates to a device capable of effectively preventing a vibrating screen from being blocked, which comprises a vibrating screen body 1, wherein fixed rods 3 are vertically arranged on two sides of the vibrating screen body 1, the tops of the fixed rods 3 are connected through connecting rods 2 which are horizontally arranged, cylindrical sleeves 4 are further sleeved on the outer walls of the two fixed rods 3, sliding grooves 6 are longitudinally formed in the side walls of the two sleeves 4, a sliding plate 5 is arranged between the two sliding grooves 6, the sliding plate 5 can slide on the sliding grooves 6, a hard scraper 7 is further fixed on the sliding plate 21, the hard scraper 7 is positioned between the two fixed rods 3, a scraper brush 8 is arranged at the bottom of the hard scraper 7, a lifting rod 20 is vertically arranged at the top of the sliding plate 21, and a straight rack 11 is arranged on;

the scraper motor 10 is arranged on the supporting frame, a moving gear 9 is connected to a motor shaft of the scraper motor 10, and the moving gear 9 is meshed with a straight rack 11; under the action of the scraper motor 10, the straight rack 11 driven by the gear 9 pushes the lifting rod 20 to move up and down;

the vibrating screen body 1 is also provided with a reciprocating motion mechanism, and the reciprocating motion mechanism is used for driving the fixed rod 3 to slide on the vibrating screen body 1; as shown in fig. 2, the reciprocating mechanism includes guide rails 14 horizontally disposed along two sides of the vibrating screen body 1, sliders 15 are further disposed at bottoms of the two fixing rods 3, the sliders 15 can slide along the guide rails 14, limiting plates are disposed on two sides of the guide rails 14, a draw bar 16 is vertically disposed on one of the sliders 15, the draw bar 16 faces the outer side of the vibrating screen body 1, gear shafts are further disposed at two ends of one side of the vibrating screen body 1, a master gear 13 and a slave gear 19 are respectively disposed on the gear shafts, the master gear 13 is connected with the slave gear 19 through a chain 12, and the master gear 13, the slave gear 19 and the guide rails 14 are coaxially disposed; the main gear 13 is concentrically connected with a reciprocating motor 18, a chain cross bar 17 is vertically arranged on the chain 12, a longitudinal bar is vertically arranged at the end part of the chain cross bar 17, the length of the chain cross bar 17 is not more than that of the traction bar 16, and the length of the longitudinal bar is 0.67 times of the diameter of the main gear 13; the end of the longitudinal rod is in contact with the traction rod 16;

the gear shaft, the main gear 13, the secondary gear 19 and the traction rod 16 are positioned on the same side of the vibrating screen body 1;

the invention relates to a device capable of effectively preventing a vibrating screen from being blocked, which has the specific working principle that:

when the apparatus is in a non-operating state, the hard blade 7 is in an upper stop position. The scraper motor and the reciprocating motor do not act. The device is in a quiescent state.

When the equipment runs, the scraper motor 10 firstly acts (assuming that the scraper motor 10 rotates forwards to enable the straight teeth 11 to move downwards to a working position), and the working position limiting plate of the straight tooth rack touches the gear, and then the scraper motor stops working. Then the reciprocating motor 18 is started, the chain broken line rod 17 pushes the traction rod 16 to move in the horizontal direction under the driving of the chain 12, meanwhile, the traction rod 16 drives the sliding block 15 to slide horizontally on the guide rail 14, when the chain cross rod 17 and the longitudinal rod enter the meshing range of the main gear 13, 180 degrees rotation is carried out around the main gear 13, and after the rotation is completed, the chain cross rod 17 and the longitudinal rod push the traction rod 16 to move in the opposite direction of the horizontal position from the other side below. Similarly, when the chain crossbar 17 and the longitudinal bar enter the meshing range of the slave gear 19, the chain crossbar 17 and the longitudinal bar rotate 180 degrees around the slave gear 19, and the rotation is completed, so that the chain crossbar 17 and the longitudinal bar continue to push the traction rod 16 to move in the direction opposite to the previous movement, and the reciprocating is carried out, and the horizontal reciprocating movement of the equipment is realized to clear the blockage.