CN210304550U - Automatic cleaning device for arc screen - Google Patents
Automatic cleaning device for arc screen Download PDFInfo
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- CN210304550U CN210304550U CN201920963771.9U CN201920963771U CN210304550U CN 210304550 U CN210304550 U CN 210304550U CN 201920963771 U CN201920963771 U CN 201920963771U CN 210304550 U CN210304550 U CN 210304550U
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Abstract
The utility model discloses an automatic cleaning device for a curved screen, which relates to the cleaning field of coal mine mechanical devices, and comprises a hydraulic rod support and a striking device, wherein a pair of connecting lugs arranged side by side are fixed on the hydraulic rod support, and two opposite through holes are arranged on the connecting lugs, the connecting lugs form a lever fulcrum, the lever fulcrum is connected with the hydraulic rod through a lead screw and a nut, the outer rod of the hydraulic rod is fixed with a connecting lug, and the lead screw connects the three connecting lugs into a whole through nuts; the beating device comprises a long connecting rod, two ends and the middle position of the long connecting rod are vertically and fixedly connected with short connecting rods respectively, and two ends and the middle position of each short connecting rod are connected with a beating head respectively; the head of the outer rod of the hydraulic rod is fixedly connected with the middle part of the long connecting rod through a connecting block, the tail of the inner rod of the hydraulic rod is eccentrically hinged with a driving wheel, and the center of the driving wheel is connected with the output shaft of a speed reducer and a motor. The utility model discloses an automatic clearance of sieve bend screen sieve face makes the sieve seam keep unobstructed.
Description
Technical Field
The utility model relates to a clearance field of some mechanical device in the colliery specifically is an automatic cleaning device of sieve bend, is applicable to the clearance of sieve bend.
Background
In a main washing system of a coal preparation plant, a screen seam of an original coarse slime sieve bend is often blocked by materials in a washing process, so that materials on a screen surface are extremely easy to accumulate, and the following effects can be caused: firstly, the normal dehydration of material on the sieve bend will be influenced to screen cut jam, and the material directly takes a large amount of moisture to get into the coal slime centrifuge of below, leads to the unable net moisture that takes off of centrifuge, seriously influences coarse coal slime dehydration effect, directly influences product coal quality. Secondly, the blockage of the screen seams easily causes the uneven speed of the material on the screen surface in the blanking process, thereby causing the accumulation of the local material on the screen surface, and the long-term result is that the abrasion degrees of the arc-shaped screen plates are different, and the service life of the arc-shaped screen is seriously influenced. Thirdly, screen slots are blocked, materials on the arc-shaped screen directly bring a large amount of moisture into a coal slurry centrifuge below the arc-shaped screen, two great damages are caused to the centrifuge, firstly, extra workload is brought to the centrifuge invisibly, the burden of the centrifuge is increased (the optimal feeding moisture requirement C of the centrifuge is less than 30%), and the service life of the centrifuge is influenced; secondly, the screen surface material is uneven, so that the material feeding of the centrifuge is uneven, the operation condition of the centrifuge is seriously influenced for a long time, and the service life of the centrifuge is influenced. For the reasons, the dewatering effect of the sieve bend is an important link influencing the moisture of the coal product. However, in practical conditions, once normal production operation is performed, the arc-shaped screen slot is inevitably blocked, and normal production is severely restricted. In the face of increasingly difficult production tasks and the more stringent quality requirements of the product coal imposed by customers, it is necessary to make extensive modifications to this. There is therefore a need for a device that can automatically clean the trommel during routine production to ameliorate the above-mentioned clogging.
Disclosure of Invention
The utility model discloses a solve the sieve bend because the screen cut blocks up the problem that causes a series of comparatively serious consequences, provide an automatic cleaning device of sieve bend.
The utility model discloses a realize through following technical scheme: an automatic cleaning device for a sieve bend comprises a hydraulic rod support and a striking device, wherein a pair of connecting lugs arranged side by side are fixed on the hydraulic rod support, two opposite through holes are formed in the connecting lugs, the connecting lugs form a lever fulcrum, the lever fulcrum is connected with the hydraulic rod through a lead screw and a nut, one connecting lug is fixed on an outer rod of the hydraulic rod, and the lead screw connects the three connecting lugs into a whole through the nut; the striking device comprises a long connecting rod, two ends and the middle position of the long connecting rod are respectively vertically and fixedly connected with a short connecting rod, and two ends and the middle position of each short connecting rod are respectively connected with a striking head; the head of the outer rod of the hydraulic rod is fixedly connected with the middle part of the long connecting rod through a connecting block, the tail of the inner rod of the hydraulic rod is eccentrically hinged with a driving wheel, and the center of the driving wheel is connected with the output shaft of a speed reducer and a motor.
The utility model discloses a solve sieve seam jam of sieve bend and invent, through crank link principle and lever principle, at first with the eccentric articulated with the drive wheel of pole afterbody in the hydraulic stem, the drive wheel is rotated by the motor drive, then drives the pole afterbody rotation in the hydraulic stem, makes the outer pole head of hydraulic stem reciprocate, thereby drives and hits the device and reciprocate and beat the sieve bend; the lever principle is that the outer rod of the hydraulic rod is connected to the hydraulic rod support through the lead screw, the nut and the connecting lug, and the connecting lug forms a lever fulcrum in the lever principle, so that the hydraulic rod can rotate around the fulcrum, and meanwhile, the position of the hydraulic rod is convenient to stabilize; hit and beat the device and include a connection stock and three connection quarter butts, connect the quarter butt and be connected the stock mutually perpendicular, every two and the intermediate position of connecting the quarter butt respectively are connected with one and hit the head, hit during the use and hit head and sieve bend concave surface contact, and the hydraulic stem drives and hits the head and hit the sieve bend, makes the automatic clean up of sieve bend. The utility model discloses the specific operation does: place the automatic cleaning device of sieve bend in sieve bend side or the reasonable position in dead ahead, then starter motor and speed reducer, the pole afterbody rotates in the drive wheel messenger hydraulic stem, the hydraulic stem up-and-down reciprocating motion that is supported by the lever fulcrum is driven, thereby drive and connect the stock and connect short-bar up-and-down reciprocating motion, make beat the continuous at the uniform velocity reciprocate beat the sieve bend of beating the head, and three are respectively had three beating heads on connecting the short-bar, consequently can carry out the multiple spot to the sieve bend and beat, the dynamics is even, beat the dynamics and all can be controlled by the rotational speed and adjust, and is nimble convenient, thereby realize the automatic clearance of sieve bend sieve sifter face, make the crack keep unobstructed, strengthen the dewatering effect, thereby reduce clean coal moisture.
Compared with the prior art the utility model discloses following beneficial effect has: the utility model provides an automatic cleaning device of sieve bend, which realizes the automatic cleaning of the sieve face of the sieve bend, keeps the sieve seam unobstructed, enhances the dehydration effect, thereby reduces the moisture of clean coal; the problem that screen seams of the sieve bend are frequently blocked, screen surface materials are accumulated, and feeding of the centrifuge is uneven is solved, remarkable contribution is made for saving expenditure and reducing consumption, good economic benefit is generated, manual beating is replaced by motor driving, and labor amount of workers is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figures are labeled as follows: 1-driving wheel, 2-striking head, 3-connecting short rod, 4-connecting long rod, 5-hydraulic rod, 6-hydraulic rod support, 7-arc sieve and 8-lever fulcrum.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
An automatic cleaning device for a sieve bend is shown in figure 1: the hydraulic rod impact device comprises a hydraulic rod support 6 and an impact device, wherein a pair of connecting lugs arranged side by side are fixed on the hydraulic rod support 6, two opposite through holes are formed in the connecting lugs, the connecting lugs form a lever fulcrum 8, the lever fulcrum 8 is connected with a hydraulic rod 5 through a lead screw and a nut, one connecting lug is fixed on an outer rod of the hydraulic rod 5, and the lead screw connects the three connecting lugs into a whole through nuts; the striking device comprises a long connecting rod 4, two ends and the middle position of the long connecting rod 4 are respectively vertically and fixedly connected with a short connecting rod 3, and two ends and the middle position of each short connecting rod 3 are respectively connected with a striking head 2; the head of the outer rod of the hydraulic rod 5 is fixedly connected with the middle part of the long connecting rod 4 through a connecting block, the tail of the inner rod of the hydraulic rod 5 is eccentrically hinged with the driving wheel 1, and the center of the driving wheel 1 is connected with the output shaft of the speed reducer and the motor.
In this embodiment: the striking head 2 is made of rubber or resin materials and is used for protecting the screen surface.
The embodiment specifically operates as follows: place the automatic cleaning device of sieve bend in 7 sides of sieve bend or the reasonable position in dead ahead, then starter motor and speed reducer, drive wheel 1 makes 5 pole tails of hydraulic stem rotate, drive the hydraulic stem up-and-down reciprocating motion that is supported by lever fulcrum 8, thereby drive connect stock 4 and connect short-bar 3 up-and-down reciprocating motion, make beat 2 continuous at the uniform velocity reciprocate beat sieve bend 7 of beating head, and three connect respectively to have three beating head on the short-bar 3, consequently can carry out the multiple spot to sieve bend 7 and beat, the dynamics of beating is even, beat the dynamics all can be controlled by the rotational speed and adjust, and is nimble convenient, thereby realize the automatic clearance of sieve bend sifter face, make the crack keep unobstructed, strengthen the dewatering effect, thereby reduce clean coal moisture.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. The utility model provides an automatic cleaning device of sieve bend which characterized in that: the hydraulic rod impact mechanism comprises a hydraulic rod support (6) and an impact device, wherein a pair of connecting lugs arranged side by side are fixed on the hydraulic rod support (6), two opposite through holes are formed in the connecting lugs, the connecting lugs form a lever fulcrum (8), the lever fulcrum (8) is connected with a hydraulic rod (5) through a lead screw and a nut, the outer rod of the hydraulic rod (5) is fixed with one connecting lug, and the lead screw connects the three connecting lugs into a whole through the nut; the beating device comprises a long connecting rod (4), two ends and the middle position of the long connecting rod (4) are respectively and vertically and fixedly connected with a short connecting rod (3), and two ends and the middle position of each short connecting rod (3) are respectively connected with a beating head (2); the hydraulic rod is characterized in that the head of an outer rod of the hydraulic rod (5) is fixedly connected with the middle of the long connecting rod (4) through a connecting block, the tail of an inner rod of the hydraulic rod (5) is eccentrically hinged with the driving wheel (1), and the center of the driving wheel (1) is connected with the output shaft of the speed reducer and the motor.
2. The automatic radial screen cleaning apparatus of claim 1, wherein: the striking head (2) is made of rubber or resin materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920963771.9U CN210304550U (en) | 2019-06-25 | 2019-06-25 | Automatic cleaning device for arc screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920963771.9U CN210304550U (en) | 2019-06-25 | 2019-06-25 | Automatic cleaning device for arc screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210304550U true CN210304550U (en) | 2020-04-14 |
Family
ID=70146283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920963771.9U Active CN210304550U (en) | 2019-06-25 | 2019-06-25 | Automatic cleaning device for arc screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210304550U (en) |
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2019
- 2019-06-25 CN CN201920963771.9U patent/CN210304550U/en active Active
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