CN114288741B - A fold dewatering screen that shakes for clearance of colliery sump - Google Patents
A fold dewatering screen that shakes for clearance of colliery sump Download PDFInfo
- Publication number
- CN114288741B CN114288741B CN202210087010.8A CN202210087010A CN114288741B CN 114288741 B CN114288741 B CN 114288741B CN 202210087010 A CN202210087010 A CN 202210087010A CN 114288741 B CN114288741 B CN 114288741B
- Authority
- CN
- China
- Prior art keywords
- screen
- transmission shaft
- connecting rod
- bar
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003245 coal Substances 0.000 claims abstract description 46
- 230000003068 static effect Effects 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 101
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 9
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 12
- 241000216843 Ursus arctos horribilis Species 0.000 description 4
- 239000003250 coal slurry Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a stacking vibration dewatering screen for cleaning a coal mine water sump, which comprises: the screen frame is provided with a static screen bar and a movable screen bar; a driving part installed on the screen frame; the four-bar mechanism is installed on the screen frame and used for being connected with the movable screen bars and the driving part respectively, so that the driving part can drive the movable screen bars to move relative to the static screen bars along a preset track, and the four-bar mechanism has the advantages of preventing screen pasting and avoiding unnecessary energy waste in the coal slime dehydration process.
Description
Technical Field
The invention relates to the technical field of dewatering screens, in particular to a stacked vibrating dewatering screen for cleaning a coal mine sump.
Background
In the coal slime vibration dehydration field, the vibration dewatering screen drives the coal slime to move through vibration of the vibration exciter, so that water flows through the screen mesh to achieve the purpose of coal slime dehydration, and the mode shows good dehydration performance. However, in the process of vibrating and dewatering the coal slime, the coal slime is wet and has certain viscosity, so that the phenomenon of screen pasting often occurs, and the dewatering efficiency of the coal slime is reduced. The traditional manual cleaning method has the problems of low cleaning efficiency, heavy work and high economic cost, and influences the normal coal slime cleaning work.
Chinese patent publication No. CN105381949A, "a process for removing dirt and preventing screen from being stuck on a vibrating screen," proposes a method and a device for preventing screen from being stuck by spraying a liquid medicine on a screen through a spray head. The method can be used for cleaning and descaling the screen after the vibrating screen stops working so as to prevent screen pasting, but the coal slime pasted on the screen cannot be cleaned in real time, the dewatering efficiency of the coal slime still can be affected, and meanwhile, the liquid medicine needs to be supplemented periodically, and the process is complicated.
Disclosure of Invention
Embodiments according to the present invention aim to solve or improve at least one of the above technical problems.
A first aspect according to embodiments of the present invention is to provide a stacked vibrating dewatering screen for coal mine sump cleaning.
Embodiments of a first aspect of the present invention provide a stacked vibrating dewatering screen for coal mine sump cleaning, comprising: the screen frame is provided with a static screen bar and a movable screen bar; a driving part installed on the screen frame; the four-bar linkage mechanism is arranged on the screen frame and is used for being connected with the movable screen bars and the driving part respectively so as to enable the driving part to drive the movable screen bars to move relative to the static screen bars along a preset track; the static sieve bars and the movable sieve bars are respectively arranged more than two and are arranged at intervals in a staggered mode.
According to the superposition vibration dewatering screen for cleaning the coal mine sump, the movable screen bars and the static screen bars move relatively in the coal slime dewatering process, and upward or downward friction force is applied to coal slime particles clamped in screen seams to drive the coal slime particles to come out of the screen seams, so that the condition of screen pasting in the coal slime dewatering process is prevented;
the superposition vibration effect of simultaneous movement of more than two movable sieve bars is adopted, and the adjacent movable sieve bars are arranged in a staggered manner at intervals by adopting static and different static sieve bars, so that coal particles are more orderly in repeated vibration, and the loss and downward screening of the coal particles in long-distance conveying and screening are further reduced;
through quiet grizzly and move the interval setting between the grizzly, not only can carry out decurrent shake-off by the adnexed moisture of many coal grains, can sieve out moreover and compare in the more tiny impurity granule of coal grain and the undersize coal grain that the size is unqualified, guaranteed that the coal grain that sieves out accords with the standard more.
In addition, the technical scheme provided by the embodiment of the invention can also have the following additional technical characteristics:
in any one of the above technical solutions, the driving part includes: a motor mounted on the screen frame; the transmission shaft is rotatably arranged on the screen frame; and the transmission mechanism is used for being respectively connected with the motor and the transmission shaft so as to enable the motor to drive the transmission shaft to rotate.
In the technical scheme, power is input through the motor, the movable sieve bars are finally moved longitudinally and repeatedly, and a single power source of the motor is uniformly dispersed to each movable sieve bar by means of the transmission shaft and the transmission mechanism, so that each movable sieve bar can vibrate at the same amplitude at the same time, the deviation of coal particles in repeated shaking is reduced, and overlarge friction among the coal particles is caused.
In any one of the above technical solutions, the transmission mechanism includes: the speed reducer is arranged on the screen frame, and one end of the speed reducer is fixedly connected with the output end of the motor; one end of the motor output shaft is fixedly connected with the other end of the speed reducer; and the other end of the output shaft of the motor is fixedly connected with the transmission shaft through the coupler.
In this technical scheme, can carry out the adaptation to the output rotational speed of motor and the required power of moving the grating through the reduction gear, avoid motor speed too big, cause breaking of coal grain, influence the processing and the shaping product quality in later stage, can carry out stable connection and transmission to motor output shaft and transmission shaft through the shaft coupling, guarantee that the power of transmission can not have too big loss.
In any one of the above technical solutions, the transmission shaft includes: one end of the first transmission shaft is fixedly connected with the coupler; a second transmission shaft; the two ends of the third transmission shaft are respectively connected with the first transmission shaft and the second transmission shaft; the first transmission shaft, the second transmission shaft and the third transmission shaft are respectively and rotatably installed on the screen frame, the first transmission shaft and the second transmission shaft are symmetrically arranged in the front-back direction of the screen frame, and two ends of the side wall of the first transmission shaft and two ends of the side wall of the second transmission shaft are respectively connected with the four-bar linkage mechanism.
In this technical scheme, set up along reel fore-and-aft direction symmetry through first transmission shaft and second transmission shaft, can carry out simultaneous drive to moving the front and back both ends of grating, avoid moving the polarization that the grating caused because of the power input inequality at both ends, lead to producing local piling up at carrying the coal grain in-process, influence holistic coal grain and carry, lateral wall both ends through first transmission shaft and the lateral wall both ends of second transmission shaft are connected with four-bar linkage respectively, make in the transmission of predetermineeing the orbit, the both ends of moving the grating are gone on simultaneously, adopt bilateral power drive promptly, the motion stability of moving the grating in the motion direction that is not single has further been promoted.
In any one of the above technical solutions, the four-bar linkage mechanism is symmetrically arranged along the front and rear direction of the screen frame, and is respectively provided with two, and the four-bar linkage mechanism includes: the two ends of the side wall of the first transmission shaft and the two ends of the side wall of the second transmission shaft are respectively connected with one end of the eccentric wheel; one end of the connecting rod is connected with the other end of the eccentric wheel, and the middle part of the connecting rod is connected with the movable screen bar; and one end of the rocker is rotatably connected with the other end of the connecting rod.
In this technical scheme, four-bar linkage follows the reel fore-and-aft direction symmetry sets up, and sets up two respectively for wholly having formed four points and enclosed into a planar power drive mode, having played fine stable driving effect to a plurality of folds that move the grating and constitute, having avoided a plurality of vibration deviations that move between the grating, guaranteed holistic stability and gone on simultaneously, through the effect of connecting rod, rocker and eccentric wheel, finally drive and move the grating and carry out long time's cyclic motion on predetermineeing the orbit.
In any of the above technical solutions, the four-bar linkage further includes: and the rack is respectively and rotatably connected with the other end of the rocker and the eccentric wheel.
In the technical scheme, the moving rocker and the moving eccentric wheel can be stably moved through the rack, deviation and unpredictable collision are avoided in the moving process, the service lives of the rocker and the eccentric wheel are protected, and power transmission loss and working noise in the working process are reduced.
In any of the above technical solutions, the movable grate bars are connected through movable grate bar connecting rods, and both ends of the movable grate bar connecting rods are connected with the connecting rods; and/or the static screen bars are connected through static screen bar connecting rods, and two ends of each static screen bar connecting rod are fixedly connected with the screen frame.
In the technical scheme, the movable sieve bars are connected through the movable sieve bar connecting rods, so that mutual offset limitation among the movable sieve bars is guaranteed, the overall movement is more orderly, and the loss of coal particles in transportation is reduced;
through being connected through quiet grizzly bar connecting rod between the quiet grizzly bar, then quiet grizzly bar connecting rod both ends and reel fixed connection for have mutual locking deprotection between a plurality of quiet grizzly bars, link to each other with the reel again, further guaranteed that quiet grizzly bar can not too early pine take off in long-term use, guaranteed the holistic steady operation of device, reduce local structure and drop the holistic device of influence and implement.
In any of the above technical solutions, the preset track is an elliptical track, the rotation center of the eccentric wheel is used as an origin, and the included angles between the frame, the eccentric wheel and the x-axis are θ 1 、θ 2 The locus coordinate of the point P moves according to the following formula:
wherein x is p Is the axial center transverse coordinate of the movable screen bar connecting rod, y p Is the axial center longitudinal coordinate, L, of the movable screen bar connecting rod 1 、L 2 、L 3 、L 4 The length of the frame, the eccentric length of the eccentric wheel, the length of the connecting rod and the length of the rocking rod are respectively, the motion track of a point P (namely the axial center transverse point of the movable screen bar connecting rod) is the elliptical track, and the distance between the point P and the connecting point of the crank and the connecting rod is L p 。
In the technical scheme, the preset track is limited to be the elliptic track, so that more stable and accurate movement of the movable screen bars is ensured.
In any of the above technical solutions, a proportional relationship between the length of the frame, the eccentric length of the eccentric wheel, the length of the connecting rod, the length of the rocker and the length of the P-point distance crank and the connecting hinge point of the connecting rod is L 1 ：L 2 ：L 3 ：L 4 ：L p ＝18:1:18:10:9。
In this solution, by setting the ratio between the lengths, it is facilitated that the respective structures can move more as intended.
Additional aspects and advantages of embodiments in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments in accordance with the invention.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic structural view of a moving screen bar and a static screen bar of the present invention;
FIG. 4 is a schematic structural view of a four-bar linkage mechanism of the present invention;
FIG. 5 is a schematic view of the eccentric wheel structure of the present invention;
fig. 6 is a diagram of the elliptical trajectory of the four bar linkage configuration of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
1: a first drive shaft; 2: a first circlip; 3: a first bevel gear; 4: a second circlip; 5: a second bevel gear; 6: a first bearing housing; 7: a first bolt; 8: a first nut; 9: a coupling; 10: a second bolt; 11: a second nut; 12: an output shaft of the motor; 13: a speed reducer; 14: a motor; 15: a four-bar linkage; 1501: a bearing; 1502: a bearing end cap; 1503: an eccentric wheel; 1504: a connecting rod; 1505: a rocker; 1506: a rocker supporting seat; 1507: a second bearing housing; 16: a gasket; 17: a cotter pin; 18: a movable sieve bar connecting rod; 19: a round nut; 20: a third bevel gear; 21: a third circlip; 22: a fourth bevel gear; 23: a screw; 24: a second drive shaft; 25: a fifth bevel gear; 26 a sixth bevel gear; 27: a third drive shaft; 28: moving the screen bar; 29: static screen bars; 30: a water outlet baffle; 31: a screen frame; 32: a motor bracket; 33: a transmission shaft support plate; 34: a bearing block support block; 35: a static screen bar connecting rod; 36: a four-bar linkage support plate; 37: an underframe support plate; 38: a blanking plate; 39: a chassis.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Referring to fig. 1-6, an embodiment of a first aspect of the present invention provides a stacked vibrating dewatering screen for coal mine sump cleaning, comprising: the screen frame 31, the screen frame 31 is provided with static screen bars 29 and movable screen bars 28; a driving part installed on the screen frame 31; the four-bar linkage mechanism 15 is installed on the screen frame 31, and the four-bar linkage mechanism 15 is used for being respectively connected with the movable screen bars 28 and the driving part so as to enable the driving part to drive the movable screen bars 28 to move relative to the static screen bars 29 along a preset track; wherein, the static screen bars 29 and the dynamic screen bars 28 are respectively arranged more than two and are arranged at intervals and in a staggered way.
The drive section includes: a motor 14 installed on the screen frame 31; the transmission shaft is rotatably arranged on the screen frame 31; and the transmission mechanism is used for being respectively connected with the motor 14 and the transmission shaft so that the motor 14 can drive the transmission shaft to rotate.
The transmission mechanism includes: the speed reducer 13 is installed on the screen frame 31, and one end of the speed reducer 13 is fixedly connected with the output end of the motor 14; one end of the motor output shaft 12 is fixedly connected with the other end of the speed reducer 13; the other end of the motor output shaft 12 is fixedly connected with the transmission shaft through a coupler 9.
The transmission shaft includes: one end of the first transmission shaft 1 is fixedly connected with the coupler 9; a second transmission shaft 24; a third transmission shaft 27, wherein two ends of the third transmission shaft 27 are respectively connected with the first transmission shaft 1 and the second transmission shaft 24; wherein, first transmission shaft 1, second transmission shaft 24 and third transmission shaft 27 rotate respectively and install on reel 31, and first transmission shaft 1 and second transmission shaft 24 set up along reel 31 fore-and-aft direction symmetry, and the lateral wall both ends of first transmission shaft 1 and the lateral wall both ends of second transmission shaft 24 are connected with four link mechanism 15 respectively.
Four-bar linkage 15 sets up along reel 31 fore-and-aft direction symmetry, and sets up two respectively, and four-bar linkage 15 includes: the two ends of the side wall of the first transmission shaft 1 and the two ends of the side wall of the second transmission shaft 24 are respectively connected with one end of the eccentric 1503; a connecting rod 1504, one end of the connecting rod 1504 is connected with the other end of the eccentric wheel 1503, and the middle part of the connecting rod 1504 is connected with the movable screen bar 28; rocker 1505, rocker 1505 rotates one end of connecting link 1504 the other end.
The four-bar linkage 15 further includes: and the frame is respectively connected with the other end of the rocker 1505 and the eccentric wheel 1503 in a rotating way.
The movable sieve bars 28 are connected through movable sieve bar connecting rods 18, and two ends of each movable sieve bar connecting rod 18 are connected with the connecting rods; and/or the static screen bars 29 are connected through static screen bar connecting rods 35, and two ends of each static screen bar connecting rod 35 are fixedly connected with the screen frame 31.
The preset track is an oval track, the rotation center of the eccentric wheel 1503 is taken as an original point, the included angles between the rack and the eccentric wheel 1503 and the x axis are respectively, and the track coordinate of a point P is moved according to the following formula:
wherein x is p Is the axial transverse coordinate, y, of the movable screen bar connecting rod 18 p Is the axial longitudinal coordinate, L, of the movable screen bar connecting rod 18 1 、L 2 、L 3 、L 4 The length of the frame, the eccentric length of the eccentric wheel 1503, the length of the connecting rod 1504 and the length of the rocker 1505 are respectively, the motion track of a point P (namely the axial center transverse point of the movable screen bar connecting rod 18) is an elliptical track, and the distance between the point P and the connecting point of the crank and the connecting rod is L p 。
The proportional relationship between the length of the frame, the eccentric length of the eccentric 1503, the length of the connecting rod 1504, the length of the rocker 1505 and the length of the point P from the point where the eccentric 1503 and the connecting rod 1504 are connected to a hinge is L 1 ：L 2 ：L 3 ：L 4 ：L p ＝18:1:18:10:9。
The first transmission shaft 1 is connected with a motor output shaft 12 through a coupler 9, the motor output shaft 12 is connected with a speed reducer 13, the speed reducer 13 is connected with a motor 14, the motor 14 is decelerated through the speed reducer 13, the motor output shaft 12 transmits power output by the motor 14 to the first transmission shaft 1 through the coupler 9, and therefore the power of the motor 14 is transmitted to the first transmission shaft 1.
First transmission shaft 1 and first bearing frame 6 cooperate, and first bearing frame 6 is fixed on transmission shaft backup pad 33 through first bolt 7 and first nut 8, and transmission shaft backup pad 33 passes through welded fastening on reel 31, and reduction gear 13 and motor 14 pass through second bolt 10 and second nut 11 and are fixed with motor support 32, and motor support 32 passes through the welding and fixes with chassis 39.
The sixth bevel gear 26 is connected with the third transmission shaft 27 through a common flat key, the fifth bevel gear 25 is connected with the second transmission shaft 24 through a common flat key, the second transmission shaft 24 is connected with the transmission shaft support plate 33 through a bearing seat, and the sixth bevel gear 26 and the fifth bevel gear 25 are matched in a gear meshing manner, so that the power of the third transmission shaft 27 is transmitted to the second transmission shaft 24.
The third bevel gear 20 is connected with the second transmission shaft 24 and realizes axial positioning through a shaft shoulder and a round nut 19, the third bevel gear 20 is matched with the fourth bevel gear 22 in a gear meshing mode, the fourth bevel gear 22 realizes axial positioning through the shaft shoulder and a third elastic retainer ring 21, and the fourth bevel gear 22 is connected with an eccentric 1503 through a common flat key, so that the power of the second transmission shaft 24 is transmitted to the four-bar mechanism 15.
The four-bar linkage 15 uses a second bearing seat 1507 and a rocker support seat 1506 as a frame, an eccentric 1503 as a crank, a connecting rod 1504 as a connecting rod, a rocker 1505 as a rocker, the eccentric 1503 connected with the second bearing seat 1507, the second bearing seat 1507 fixed with a bearing seat support block 34 through a screw 23, the bearing seat support block 34 fixed with the rocker support seat 1506 through welding on a four-bar linkage support plate 36.
The connecting rod 1504 is connected with the movable sieve bar connecting rod 18, axial positioning is realized through a shaft shoulder, a gasket 16 and a cotter pin 17, and the movable sieve bar connecting rod 18 is fixed with the movable sieve bar 28 through welding, so that the movable sieve bar 28 is driven by the four-bar mechanism 15 to move in an elliptic track.
The working principle is as follows:
firstly, the motor 14 is started, the motor 14 drives the first transmission shaft 1, the second transmission shaft 24 and the third transmission shaft 27 to rotate, the four-bar linkage 15 on the two sides is driven by the first transmission shaft 1 and the second transmission shaft 24 to move, the motion track of a specific position on the connecting rod 1504 is elliptical, the position drives the movable screen bars 28 to move with elliptical track by connecting the movable screen bar connecting rods 18, the starting point of the elliptical track is the point Q, the point Q is located at the leftmost side of the elliptical track, and the middle position of the elliptical track is located in the vertical direction.
Then, the coal slurry is continuously conveyed to the movable screen bars and the static screen bars through the conveying device, the static screen bars move in an elliptical track and drive the coal slurry to move, coal slurry filtrate leaks from screen gaps between the movable screen bars 28 and the static screen bars 29 and flows out through the water outlet baffle, and the coal slurry continuously moves forwards to the blanking plate 38 and is discharged. The coal slime is continuously conveyed to the movable sieve bars 28 and the static sieve bars 29, the coal slime filtrate continuously flows out from the water outlet baffle plate, and the process that the coal slime continuously moves forwards to the blanking plate 38 is continuously carried out, so that the dehydration of the coal slime is realized.
Anti-pasting sieve: when the size of the coal slime particles is close to that of the screen openings, the coal slime particles are easily clamped in the screen openings, the movable screen strips 28 move in an elliptical shape by doing tracks, when the movable screen strips 28 move upwards relative to the static screen strips 29, upward friction force is applied to the clamped coal slime particles, when the movable screen strips 28 move downwards relative to the static screen strips 29, downward friction force is applied to the coal slime particles, and under the action of the upward or downward friction force, the coal slime particles move upwards or downwards and cannot block the screen openings, so that the purpose of preventing the coal slime is achieved.
Claims (5)
1. The utility model provides a fold dewatering screen that shakes for clearance of colliery sump, its characterized in that includes:
the screen frame is provided with a static screen bar and a movable screen bar;
a driving part installed on the screen frame;
the four-bar linkage mechanism is arranged on the screen frame and is used for being connected with the movable screen bars and the driving part respectively so as to enable the driving part to drive the movable screen bars to move relative to the static screen bars along a preset track, and the preset track is an elliptical track;
the static sieve bars and the movable sieve bars are respectively arranged in more than two numbers, and are arranged at intervals and in a staggered manner; the driving part includes:
a motor mounted on the screen frame;
the transmission shaft is rotatably arranged on the screen frame;
the transmission mechanism is used for being respectively connected with the motor and the transmission shaft so as to enable the motor to drive the transmission shaft to rotate; the transmission mechanism includes:
the speed reducer is arranged on the screen frame, and one end of the speed reducer is fixedly connected with the output end of the motor;
one end of the motor output shaft is fixedly connected with the other end of the speed reducer;
the other end of the output shaft of the motor is fixedly connected with the transmission shaft through the coupler;
the transmission shaft includes:
one end of the first transmission shaft is fixedly connected with the coupler;
a second drive shaft;
the two ends of the third transmission shaft are respectively connected with the first transmission shaft and the second transmission shaft;
the first transmission shaft, the second transmission shaft and the third transmission shaft are respectively rotatably mounted on the screen frame, the first transmission shaft and the second transmission shaft are symmetrically arranged along the front and back directions of the screen frame, and two ends of the side wall of the first transmission shaft and two ends of the side wall of the second transmission shaft are respectively connected with the four-bar linkage; four-bar linkage follows the reel fore-and-aft direction symmetry sets up, and sets up two respectively, four-bar linkage includes:
the two ends of the side wall of the first transmission shaft and the two ends of the side wall of the second transmission shaft are respectively connected with one end of the eccentric wheel;
one end of the connecting rod is connected with the other end of the eccentric wheel, and the middle part of the connecting rod is connected with the movable sieve bar;
and one end of the rocker is rotatably connected with the other end of the connecting rod.
2. The stacked vibratory dewatering screen for coal mine sump cleaning according to claim 1, wherein the four bar linkage mechanism further comprises: and the rack is respectively and rotatably connected with the other end of the rocker and the eccentric wheel.
3. The stacked vibrating dewatering screen for coal mine water sump cleaning according to claim 2, wherein the movable screen bars are connected with each other through movable screen bar connecting rods, and two ends of each movable screen bar connecting rod are connected with the connecting rods; and/or the static screen bars are connected through static screen bar connecting rods, and two ends of each static screen bar connecting rod are fixedly connected with the screen frame.
4. The stacked vibrating dewatering screen for coal mine sump cleaning according to claim 3, wherein the rotation center of the eccentric wheel is used as the origin, and the included angles between the machine frame, the eccentric wheel and the x axis are theta and theta respectively 1 、θ 2 And (3) the track coordinate of the point P moves according to the following formula:
wherein x is p Is the axis transverse coordinate, y, of the movable screen bar connecting rod p Is the axial center longitudinal coordinate, L, of the movable screen bar connecting rod 1 、L 2 、L 3 、L 4 The length of the frame, the eccentric length of the eccentric wheel, the length of the connecting rod and the length of the rocker are respectively, a point P is a point where the axis of the movable sieve bar connecting rod is intersected with a rotating plane of the eccentric wheel, the motion track of the point P is the elliptical track, and the distance between the point P and a connecting point of the crank and the connecting rod is L p 。
5. The stacked vibrating dewatering screen for coal mine sump cleaning according to claim 4, wherein a proportional relationship between the length of the frame, the eccentric length of the eccentric, the length of the connecting rod, the length of the rocker and the length of the P point distance crank and connecting rod connecting hinge point is L 1 ：L 2 ：L 3 ：L 4 ：L p ＝18:1:18:10:9。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087010.8A CN114288741B (en) | 2022-01-25 | 2022-01-25 | A fold dewatering screen that shakes for clearance of colliery sump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087010.8A CN114288741B (en) | 2022-01-25 | 2022-01-25 | A fold dewatering screen that shakes for clearance of colliery sump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114288741A CN114288741A (en) | 2022-04-08 |
| CN114288741B true CN114288741B (en) | 2023-03-28 |
Family
ID=80977867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210087010.8A Active CN114288741B (en) | 2022-01-25 | 2022-01-25 | A fold dewatering screen that shakes for clearance of colliery sump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114288741B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259095B (en) * | 2014-10-23 | 2016-08-31 | 石家庄功倍重型机械有限公司 | A kind of dynamic sieve aperture sieve nest preventing material blocking |
| GB2570350B (en) * | 2018-01-23 | 2022-11-30 | Terex Gb Ltd | Screening bar assembly for a screen |
| CN108613519A (en) * | 2018-06-17 | 2018-10-02 | 江西金石宝矿山机械制造有限公司 | A kind of adjustable straight line dewatering screen of sieve pore |
-
2022
- 2022-01-25 CN CN202210087010.8A patent/CN114288741B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114288741A (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106269489B (en) | A kind of unilateral drive-type swinging screen | |
| CN110252644B (en) | Classification sand screening machine | |
| CN205926287U (en) | Jigging sieve | |
| CN114288741B (en) | A fold dewatering screen that shakes for clearance of colliery sump | |
| CN2460227Y (en) | Multiaxis self-synchronizing translation elliptic vibration screen | |
| CN201711282U (en) | High-frequency three-shaft elliptical vibrating fine screen | |
| CN102601042A (en) | Translational elliptical vibrating screen | |
| CN2454048Y (en) | Double-material independent-supported double-driven tension-relaxation sieve | |
| CN207357575U (en) | A kind of vibrating screen device | |
| CN202803575U (en) | Hydraulic high-frequency vibration sieve | |
| CN213700714U (en) | Anti-blocking vibration screening device for asphalt concrete | |
| CN213377737U (en) | Section flip-flow screen | |
| CN214515850U (en) | System sand is with reciprocating sieve material device | |
| CN2352270Y (en) | Conveying vibration sieves | |
| CN202447280U (en) | Tank-type size screening device | |
| CN219880570U (en) | Novel screen structure | |
| CN112827806A (en) | Novel sand screening machine | |
| CN2741673Y (en) | Multiple motor exciting vibration multiple vibration type self synchronous vibrative sieve | |
| CN202498023U (en) | Translation elliptical vibrating screen | |
| CN207746111U (en) | Roll the feeding device of sand sieving machine | |
| CN220617130U (en) | Material conveying device for concrete production | |
| CN212041497U (en) | Efficient circular rocking sieve | |
| CN205518566U (en) | A novel vibration screening machine for stone material screening | |
| CN111001462A (en) | Be used for broken mixing arrangement of coal slime | |
| CN209901482U (en) | Wheel bucket type sand washer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |