CN217963467U - Automatic change screening plant that gathers materials of ejection of compact - Google Patents

Abstract

An aggregate screening device for automatic discharge, which solves the problems in the prior art that the screening operation process is cumbersome, the degree of automation is low, the screen is often stuck, accumulation and screening are incomplete, the discharge is inconvenient, and the efficiency is low. . Including the bottom base on which the screening vibration mechanism is set, the upper part of the lower bin set on the screening vibration mechanism is equipped with a fixed sleeve screen, and the middle part of the fixed sleeve screen is equipped with a multi-level lifting telescopic rod, and a multi-level lifting telescopic rod There are several lifting sieves on the top, the dust-proof bin at the upper end of the multi-stage lifting telescopic rod is provided with a material inlet, and the bottom base is provided with a discharge port; the lower hopper, the fixed sieve and the lifting sieve are arranged The inner wall of the outer cover shell is provided with a spiral discharge slideway. Its reasonable design and compact structure can effectively avoid the accumulation of aggregates and sieve jamming, and can realize the automatic discharge of aggregates in a certain particle size range. The screening effect is good, the discharge is convenient, the screening process is coherent, and the work efficiency is high. It is safe and reliable to use.

Description

A collection and screening device for automatic discharge

technical field

The utility model belongs to the technical field of material screening, and in particular relates to a device that can effectively avoid the accumulation and jamming of aggregates in the screening process, and can realize the automatic discharge of aggregates in a certain particle size range, and has good screening effect. The discharge is convenient, the screening process is coherent, the work efficiency is high, and the safe and reliable automatic discharge aggregate screening device is used.

Background technique

Aggregate is the most widely used granular raw material in the field of civil engineering, including crushed stone, gravel, machine-made sand, stone chips, sand, etc. A certain grade of aggregate and asphalt or cement and other binders can be used to build various buildings (such as houses) and structures (such as roads, bridges, dam). Aggregate gradation is a key factor affecting the performance of this type of mixed material. Whether it is the aggregate gradation design in the early stage or the on-site construction in the later stage, the first step is to screen the aggregate, namely: Sorting aggregates with uneven particle size through a set of sieves with specified sieve size, so as to understand the distribution of aggregate particle size, or obtain aggregates with a single particle size or a certain particle size range that meet the size specification requirements .

At present, there are mainly two ways to sieve aggregates in the laboratory: one is manual sieving, and the other is electric sieving machine sieving. The working efficiency of manual screening is low, and the dust pollution is serious. Long-term work not only consumes a lot of physical strength of the operator, but is also not conducive to health. The electric sieving machine drives the standard sieve to vibrate through the up and down vibration generated by the electric vibrating device to achieve the purpose of sieving the aggregate; compared with the manual sieving, the electric sieving machine with the existing structure effectively improves the screening efficiency. And reduce the physical exertion of the operator, but in the screening process, it is necessary to manually take out the sieve frequently, pour out the aggregate, and then put in new aggregate to continue screening. The operation process is cumbersome and the degree of automation is low; except for the screening process Except for the need for manual operation, the rest of the links still have to rely on manual cooperation to complete. In addition, the existing flat screen structure and simple vibrating screening in one-dimensional space often lead to the phenomena of aggregates stuck in the sieve, accumulation and incomplete screening of aggregates. The aggregates are poured out from the sieves at all levels and classified again; and the aggregates with different particle sizes cannot be automatically poured out, which is extremely inconvenient, time-consuming and laborious, and has poor practicability. Therefore, it is necessary to improve the aggregate screening method and device of the prior art.

Utility model content

The utility model is aimed at the above problems, and provides a method that can effectively avoid the accumulation and jamming of aggregates in the screening process, and can realize automatic discharge of aggregates in a certain particle size range, with good screening effect and convenient discharge. , The screening process is coherent, the work efficiency is high, and the safe and reliable automatic discharge aggregate screening device is used.

The technical scheme adopted by the utility model is: the aggregate screening device for automatic discharge includes a bottom base, and is characterized in that: the bottom base is provided with a screening vibration mechanism, and the upper part of the screening vibration mechanism is provided with The upper part of the lower silo is provided with a fixed sleeve screen; the middle part of the fixed sleeve screen is provided with a multi-level lifting telescopic rod, and the upper part of the fixed sleeve screen and the telescopic rods of each level of the multi-level lifting telescopic rod are respectively set There are several lifting sieves with different sieve hole sizes, the upper end of the multi-stage lifting telescopic rod is also provided with a dust-proof bin, the dust-proof bin is provided with a material inlet, and the bottom base is provided with a material outlet and, the outer side of the lower hopper, the fixed sieve and the lifting sieve are provided with an outer cover shell, and the inner wall of the outer cover shell is provided with a spiral discharge slideway.

The inner wall of the outer cover shell is provided with several groups of vertically arranged slideway installation grooves, and the spiral discharge slideway is fixedly connected with the slideway installation grooves at corresponding positions through several slideway connection protrusions . To stabilize the connection of the spiral discharge chute on the inner wall of the housing shell, the sieved aggregate discharged from the lifting sieve and the fixed sieve is discharged to the discharge port on the bottom base through the spiral discharge chute .

The upper side of the bottom base and the position corresponding to the end of the spiral discharge chute are provided with a discharge inlet, and a discharge slide chamber arranged obliquely is arranged in the bottom base, and the upper end of the discharge slide chamber is connected with the discharge slide chamber. The material inlet is connected, and the lower end of the discharge sliding chamber is connected with the discharge port, and the discharge port is provided with a discharge sliding door; the bottom base is also provided with a shell connecting groove. To fix the lower end of the outer cover shell in the shell connection groove on the bottom base, and make the sieved aggregate discharged from the spiral discharge chute enter into the discharge slide cavity through the discharge inlet, and then from the pull Open the discharge port of the discharge sliding door to discharge.

The screening vibration mechanism includes a vibrating table connecting seat, which is connected to the upper side of the bottom base, a T-shaped vibrating table is arranged on the vibrating table connecting seat, and a vibrating motor is arranged inside the T-shaped vibrating table, and, Several groups of buffer springs are also arranged between the vibrating table surface of the T-shaped vibrating table and the connecting seat of the vibrating table. The T-shaped vibrating table is driven to vibrate reciprocatingly on the connecting seat of the vibrating table through the vibrating motor, so that the lower bin, fixed sieve and lifting sieve arranged in sequence on the upper part of the screening vibrating mechanism vibrate synchronously, and achieve different particle sizes. Screening of range aggregates.

The inside of the feeding bin is provided with a horizontally arranged cutting ramp, and the lower end of the cutting ramp is connected to the cutting outlet provided on the side wall of the cutting bin; and, the lower feeding outlet is also provided with a lower For the material gate, a gate motor is provided on the outside of the discharge gate, and the output end of the gate motor is provided with a gate drive gear, and the gate drive gear meshes with the gate arc rack provided on the outer wall of the discharge gate. So that the aggregates in the smaller particle size range after being screened by each layer of lifting sieves and fixed sieves fall into the discharge bin, and slide down through the discharge slant to the discharge inlet corresponding to the discharge inlet. At the exit; at the same time, use the gate motor to drive the intermeshing gate drive gear and gate arc rack drive, and then flexibly drive the opening or closing of the discharge gate according to the specific screening needs.

The lower end of the multi-stage lifting telescopic rod is arranged at the bottom of the feeding bin, and the multi-stage lifting telescopic rod runs through the middle of the blanking ramp; In the control cavity of the lower material bin, the upper part of the lower material slant plate is the lower material cavity; the side wall of the control cavity of the lower material bin is also provided with several groups of cooling holes. The expansion and retraction of the telescopic rods at all levels of the multi-level lifting telescopic rods is driven by the telescopic rod drive mechanism located in the lower material bin and below the slant plate, so that the lifting sleeves respectively arranged on the telescopic rods at all levels The corresponding lifting of the sieve facilitates the separate discharge of the screened aggregates in the lifting sleeves of each layer along the spiral discharge chute.

The structure of the fixed sieve and the lifting sieve are the same. Both the fixed sieve and the lifting sieve include a conical screen surface. The rods are fixedly connected; above the conical screen surface, there is a sleeve sieve cylinder movable, and a cylinder lifting mechanism is provided between the sleeve sieve cylinder and the conical screen surface to separate the two from each other; and, the sleeve A ring-shaped collection trough is arranged under the screen cylinder body and outside the conical screen surface; the ring-shaped collection trough is also provided with a discharge gate of the ring groove, and the discharge gate of the ring groove is connected with the guide hopper of the slideway. The aggregates of different particle size ranges are screened layer by layer by lifting the sieves and fixed sieves with the sieve hole size decreasing from top to bottom; and the cylinder body is driven by the cylinder lifting mechanism Lift up and down to separate the casing and the conical screen surface from each other, so that the aggregates with larger particle sizes retained on the upper side of the conical screen surface enter the ring-shaped collection tank; after that, the aggregates pass through the The chute guide hopper connected with the ring groove discharge gate is discharged into the spiral discharge chute.

The connecting sleeve of the telescopic rod is provided with several groups of horizontal support connecting rods arranged radially along the cylinder body of the casing, the inner end of the horizontal supporting connecting rod is fixedly connected with the connecting sleeve of the telescopic rod, and the outer end of the horizontal supporting connecting rod is movable It is clamped in the cylinder lifting gap correspondingly provided on the side wall of the casing of the screen; and, the cylinder lifting mechanism includes a vertically arranged cylinder lifting rack, and the cylinder lifting rack is fixedly arranged on the horizontal support connecting rod The outer end of the casing, the inner wall of the casing is also fixed with a cylinder lifting motor, the output end of the cylinder lifting motor is provided with a cylinder lifting gear, the cylinder lifting gear and the cylinder lifting rack Mesh. The cylinder lifting motor is used to drive the cylinder lifting gear to engage with the cylinder lifting rack, and then drive the casing casing to move up and down along the end of the horizontal support connecting rod matched with the casing lifting gap to realize the casing casing The separation and closure of the cylinder and the conical screen surface below it.

A collecting brush is arranged in the annular collection tank, and a vertically arranged telescopic connecting column is arranged on the brush plate of the collecting brush, and a material brush rotary motor is fixedly installed on the upper end of the telescopic connecting column, and the output end of the material brush rotary motor is set There is a material brush rotary gear, and the material brush rotary gear meshes with the outer edge teeth of the cylinder set on the outer wall of the casing; The material brush rotary track slides and connects. The material brush rotary gear is driven to rotate through the material brush rotary motor, so that the material brush rotary motor, the telescopic connecting column and the collecting brush at the lower part go around the cylinder outer edge teeth on the outer wall of the sleeve screen cylinder (and along the material brush rotary track), and make circular motion in the ring collecting tank.

The dust-proof bin includes a conical bin body, and a material guide cavity is arranged inside the conical bin body. The silo cover, the feed inlet is arranged on the hopper cover; the inside of the conical silo body is provided with several groups of horizontal support connecting rods arranged radially along the silo body, and the outer sides of the horizontal support connecting rods The end is fixedly connected with the side wall of the conical warehouse body, and the inner end of the horizontal support connecting rod is fixedly connected with the telescopic rod connecting sleeve provided on the upper end of the multi-stage lifting telescopic rod. The conical bin body is fixedly connected to the upper end of the multi-stage lifting telescopic rod by utilizing the telescopic rod connecting sleeve connected with the horizontal support connecting rod, so as to facilitate the lifting of the dust-proof bin during the vibration and screening process.

Beneficial effects of the utility model: Since the utility model adopts the bottom base on which a screening vibration mechanism is arranged, the upper part of the screening vibration mechanism is provided with a lower material bin, and the upper part of the lower material bin is provided with a fixed sleeve screen; the fixed sleeve The middle part of the sieve is equipped with a multi-level lifting telescopic rod. The upper part of the fixed sleeve screen and the telescopic rods of the multi-level lifting telescopic rods are respectively equipped with a lifting sleeve screen. There is a material inlet on the upper side, and a material outlet on the bottom base; an outer cover shell is set on the outer side of the lower material bin, the fixed sleeve screen and the lifting sleeve screen, and the structure of the spiral discharge slideway is set on the inner wall of the outer cover shell form, so its design is reasonable, the structure is compact, and the screening effect is good. The sieves of each layer adopt conical screens, which can effectively avoid the phenomenon of concentrated accumulation and jamming of aggregates during the screening process, and can realize the automation of aggregates. Discharge, high accuracy. At the same time, the sieve sets of each layer are exquisitely designed, and the combined design is adopted, so that during the screening process, the aggregate screening can be completed, and the aggregate can be temporarily stored through the ring-shaped collection tank, so as to avoid the need for screening during the screening process. Pause caused by material discharge significantly improves work efficiency. Moreover, the screening efficiency of the device is high, and the discharge is convenient. It can realize one-time automatic discharge of aggregates in a certain particle size range, and can also specify a certain particle size for automatic discharge alone, and the selected aggregates can be Automatically slide down along the spiral discharge chute to the lower discharge port to complete the discharge. The whole process does not require the assistance of the operator. The degree of automation is high, which greatly saves labor costs and is safe.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is a schematic diagram of an internal structure after removing the outer cover shell and the spiral discharge chute in Fig. 1 .

Fig. 3 is a schematic diagram of a connection structure between the housing shell and the spiral discharge chute in Fig. 1 .

Fig. 4 is a schematic diagram of a use state in which the lifting sleeve screen and the dustproof bin in Fig. 1 are raised step by step along with the multi-stage lifting and telescopic rods.

Fig. 5 is a sectional view of an internal structure of Fig. 4 .

Fig. 6 is a schematic diagram of a connection structure of the bottom base, the screening vibration mechanism, the lower material bin and the fixed sleeve screen in Fig. 4 .

Fig. 7 is a cross-sectional view of an internal structure in Fig. 6 after the fixed sleeve screen is removed.

Fig. 8 is a view from the direction A of Fig. 7 .

Fig. 9 is a schematic diagram of the structure of the lifting sieve (fixed sieve) in Fig. 4 .

Fig. 10 is a view taken along direction B of Fig. 9 .

FIG. 11 is an enlarged view of the local structure at point C in FIG. 10 .

FIG. 12 is a sectional view of an internal structure of FIG. 9 .

Fig. 13 is a schematic diagram of a discharge state in which the cylinder lifting motor in Fig. 12 drives the jacket cylinder to rise and separate from the conical screen surface.

Fig. 14 is a structural schematic diagram of the dustproof bin in Fig. 4 .

Fig. 15 is a sectional view of an internal structure of Fig. 14 .

Description of serial numbers in the figure: 1. Bottom base, 2. Cover shell, 3. Spiral discharge slideway, 4. Screening vibration mechanism, 5. Lower material bin, 6. Fixed sieve, 7. Lifting sieve, 8. Dustproof bin, 9. Material inlet, 10 Material outlet, 11 Slideway installation groove, 12 Slideway connection bump, 13 Multi-level lifting telescopic rod, 14 Blanking outlet, 15 Cushion spring, 16 Discharging inlet, 17 Blanking plate, 18 blanking gate, 19 telescopic rod drive mechanism, 20 T-shape vibrating table, 21 vibrating table connecting seat, 22 vibrating motor, 23 discharging slide chamber, 24 discharging sliding door, 25 shell connecting groove, 26 gate motor, 27 Gate drive gear, 28 gate arc racks, 29 sets of screen cylinders, 30 conical screen surfaces, 31 telescopic rod connecting sleeves, 32 horizontal support connecting rods, 33 ring collecting trough, 34 ring groove discharge gate, 35 sliding Road guide hopper, 36 barrel lifting mechanism, 37 barrel lifting gap, 38 collection brush, 39 brush plate, 40 telescopic connecting column, 41 material brush rotary motor, 42 material brush rotary gear, 43 cylinder outer edge teeth, 44 material Brush rotary track, 45 barrel lifting rack, 46 barrel lifting motor, 47 barrel lifting gear, 48 conical bin body, 49 feeding bin cover, 50 material guide cavity.

detailed description

The specific structure of the utility model is explained in detail according to Fig. 1-15. The aggregate screening device for automatic discharge includes a bottom base 1, on which a housing connecting groove 25 is arranged, and a housing housing 2 arranged vertically upward is arranged in the housing connecting groove 25, and the housing housing 2 The lower end of 2 is connected to the shell connection groove 25 through threads, and the inner wall of the outer cover shell 2 is provided with a spiral discharge slideway 3 . Moreover, the inner wall of the outer cover shell 2 is provided with several groups of vertically arranged slideway installation grooves 11, and the spiral discharge slideway 3 connects the projections 12 and the slideway installation grooves at corresponding positions through several slideways respectively. 11 is fixedly connected; the outer cover shell 2 and the spiral discharge slideway 3 are all located on the outside of the screening vibration mechanism 4, the lower material bin 5, the fixed sleeve screen 6 and the lifting sleeve screen 7. Thus, the connection of the spiral discharge chute 3 on the inner wall of the outer cover shell 2 is stabilized, and the sieved aggregate discharged from the lifting sleeve 7 and the fixed sleeve 6 is discharged to the bottom base 1 through the spiral discharge chute 3 There are 10 outlets on the top.

A discharge inlet 16 is provided on the upper side of the bottom base 1 at a position corresponding to the end of the spiral discharge slideway 3 , and an obliquely arranged discharge slide chamber 23 is also provided inside the bottom base 1 . The upper end of the discharge slide chamber 23 is connected to the discharge inlet 16, and the lower end of the discharge slide chamber 23 is connected to the discharge port 10 provided on the bottom base 1; the discharge port 10 is provided with a discharge sliding door 24. Furthermore, the sieved aggregate discharged from the spiral discharge slideway 3 enters the discharge slide cavity 23 through the discharge inlet 16 and is discharged from the discharge port 10 where the discharge sliding door 24 is pulled open.

The bottom base 1 is provided with a screening vibration mechanism 4, the screening vibration mechanism 4 includes a vibrating table connecting seat 21, the vibrating table connecting seat 21 is connected with the upper side of the bottom base 1, and the vibrating table connecting seat 21 is provided with a T-shaped Vibrating table 20, the inside of T-shaped vibrating table 20 is provided with vibrating motor 22; Buffer spring 15. And then drive the T-shape vibrating table 20 to reciprocate and vibrate on the vibrating table connecting seat 21 through the vibrating motor 22, so that the lower bin 5, the fixed sleeve sieve 6 and the lifting sleeve sieve 7 which are arranged successively on the top of the screening vibration mechanism 4 produce synchronous vibration , so as to realize the screening of aggregates in different particle size ranges.

The T-shaped vibrating table 20 of the screening vibration mechanism 4 is provided with a lower material bin 5, and the inside of the lower material bin 5 is provided with a horizontally arranged lower material slant plate 17, and the lower end of the lower material slant plate 17 is connected to the side of the lower material silo 5. The blanking outlet 14 that is provided with on the wall is connected. Simultaneously, blanking outlet 14 places are also provided with blanking gate 18 movablely, and the outside of blanking gate 18 is provided with vertically arranged gate motor 26, and the output end of gate motor 26 top is provided with gate drive gear 27, and gate drive gear 27 Engage with the gate arc rack 28 provided on the outer wall of the blanking gate 18 . Then the aggregates in the range of smaller particle sizes after being sieved by each layer of lifting sieves 7 and fixed sieves 6 fall into the lower silo 5 layer by layer, and slide down through the internal slant plate 17 to the same level as the sieve. The material discharge outlet 14 corresponding to the discharge inlet 16 position. Moreover, the gate motor 26 is used to drive the mutually meshing gate drive gear 27 and the gate arc rack 28 to drive, so as to flexibly drive the opening or closing of the blanking gate 18 according to specific screening needs.

The top of the lower feed bin 5 is provided with a fixed cover screen 6, and the middle part of the fixed cover screen 6 is provided with a multi-stage lifting telescopic link 13, and the multi-stage lifting telescopic link 13 can adopt the structural form of a multi-stage hydraulic telescopic link. The lower end of the multi-stage lifting telescopic link 13 is arranged on the bottom of the lower silo 5, and the multi-stage lifting telescopic link 13 runs through the middle part of the blanking ramp 17. And, the telescoping rod driving mechanism 19 that is used to drive the lifting of the multi-stage lifting telescopic rod 13 is located in the control cavity below the blanking ramp 17, and the inside of the blanking bin 5 and the top of the blanking ramp 17 are the blanking cavity. On the side wall of the control chamber below the lower material bin 5, several groups of heat dissipation holes are also provided for dissipating heat for the telescopic rod driving mechanism 19. And then utilize the telescopic rod drive mechanism 19 that is positioned at the lower hopper 5 and the lower slant plate 17 to drive the stretching and retracting of the telescopic rods at all levels of the multi-stage lifting telescopic rod 13, so that the telescopic rods at all levels are respectively The set lifting sieves 7 are raised and lowered accordingly, so that the sieved aggregates in the lifting sieves 7 of each layer are discharged along the spiral discharge chute 3 (as shown in Figure 4 and Figure 5).

Above the fixed sleeve screen 6 and on the telescopic rods of the multi-stage lifting telescopic rod 13, there are several lifting sleeves with different sieve hole sizes (from top to bottom, the sieve hole diameters of each set of sieves decrease in turn). screen 7; and the structure of the fixed sleeve screen 6 and the lifting sleeve screen 7 is the same. Both the fixed sleeve screen 6 and the lifting sleeve screen 7 are composed of a conical screen surface 30 with a high middle part and a low outer side. The telescopic rod is fixedly connected. A casing sieve cylinder 29 is movable above the conical screen surface 30 , and a cylinder lifting mechanism 36 is provided between the casing sieve cylinder 29 and the conical screen surface 30 to separate the two from each other. In addition, an annular collecting tank 33 is arranged under the casing 29 and outside the conical screen surface 30 , and the annular collecting tank 33 is fixedly connected with the conical screen surface 30 . Ring groove discharge gate 34 is also provided with ring groove discharge gate 33 on the annular collection tank 33, and ring groove discharge gate 34 links to each other with slideway guide hopper 35, when lifting cover screen 7 rises with multistage lifting telescopic rod 13, the The discharge end of the slide guide hopper 35 can be matched with the spiral discharge slide 3 (as shown in Figure 12 and Figure 13 ). Thus, aggregates with different particle size ranges are sieved layer by layer through the lifting sieves 7 and the fixed sieves 6 whose sieve size decreases sequentially from top to bottom. At the same time, use the cylinder lifting mechanism 36 to drive the sleeve cylinder 29 up and down, so that the sleeve cylinder 29 and the conical screen surface 30 are separated from each other, and then the larger particle size retained on the upper side of the conical screen surface 30 The collected material enters in the ring-shaped collection tank 33, and then the collected material is discharged into the spiral discharge chute 3 through the slideway guide hopper 35 connected with the discharge door 34 of the ring groove.

On the telescopic rod connecting sleeves 31 in the middle of the fixed sleeve screen 6 and the lifting sleeve screen 7, four groups of horizontal support connecting rods 32 arranged in a cross shape along the radial direction of the sleeve screen cylinder body 29 are respectively provided (as shown in Figures 9 and 10). As shown), the inner end of the horizontal support connecting rod 32 is fixedly connected with the telescopic rod connecting sleeve 31, and the outer end of the horizontal supporting connecting rod 32 is movably connected to the cylinder lifting gap 37 correspondingly provided on the side wall of the casing 29 Inside. According to specific usage requirements, the horizontal support link 32 can adopt a multi-segment thread connection structure, so as to facilitate the flexible adjustment of the length of the link.

The cylinder elevating mechanism 36 provided between the sleeve sieve cylinder 29 and the conical screen surface 30 includes a cylinder elevating rack 45 arranged vertically, and the cylinder elevating rack 45 is fixedly arranged on the outer end of the horizontal support connecting rod 32 and, on the inner side wall of the cover screen cylinder 29, on the side of the cylinder lifting gap 37, a cylinder lifting motor 46 arranged horizontally is also fixedly arranged, and the output end of the cylinder lifting motor 46 is provided with a cylinder lifting gear 47 , The cylinder elevating gear 47 is meshed with the cylinder elevating rack 45 (as shown in Figure 11). Furthermore, the cylinder lifting motor 46 is used to drive the cylinder lifting gear 47 to mesh with the cylinder lifting rack 45, so as to drive the sleeve sieve cylinder 29 along the relatively fixed horizontal support connecting rod that is matched with the cylinder lifting gap 37. The end of 32 lifts up and down to realize the separation and closure of the casing sieve cylinder 29 and the conical screen surface 30 below it.

In the ring-shaped collection tank 33 fixedly arranged on the outside of the conical screen surface 30, a collection brush 38 for collecting aggregates in the cleaning tank is also provided; The thickness of the bristles of the collecting brush 38 and the distribution density thereof on the brush plate 39 are matched with the sieve size of each layer of sieves. The brush plate 39 of the collecting brush 38 is provided with a vertically arranged telescopic connecting column 40, the upper end of the telescopic connecting column 40 is fixedly provided with a material brush rotary motor 41, and the output end of the material brush rotary motor 41 top is provided with a material brush rotary gear 42, And the rotary gear 42 of the material brush meshes with the cylinder outer edge teeth 43 provided on the outer wall of the sleeve sieve cylinder 29 . Simultaneously, the housing of the material brush rotary motor 41 is also slidably connected to the material brush rotary track 44 provided on the outer wall of the casing 29 through a slider. Thereby, the material brush rotary gear 42 is driven to rotate by the material brush rotary motor 41, and then the material brush rotary motor 41, the telescopic connecting column 40 and the collecting brush 38 at its lower part, together surround the fixed outer sidewall of the casing 29 The outer cylinder on the top moves circularly in the annular collecting tank 33 along the teeth 43 and along the brush revolving track 44.

The upper end of the multi-stage lifting telescopic rod 13 is provided with a dust-proof bin 8, and the dust-proof bin 8 is provided with a material inlet 9. Dust-proof bin 8 is made of conical bin body 48, and the interior of conical bin body 48 is provided with material guide chamber 50, and material guide chamber 50 adopts the structural form of upper end opening small, lower end opening; And the upper end of conical bin body 48 Also be provided with feeding bin cover 49, feed port 9 is arranged on feeding bin cover 49, to facilitate the conveying of sieving aggregate. The inside of the conical warehouse body 48 is also provided with four groups of horizontal support connecting rods 32 arranged in a cross shape along the radial direction of the warehouse body. The inner end of the support link 32 is fixedly connected with the telescopic link sleeve 31 provided on the upper end of the multi-stage lifting telescopic link 13; 48 is fixedly connected to the upper end of the multi-stage lifting telescopic rod 13, so that the lifting of the dustproof bin 8 in the vibration and screening process.

When the aggregate screening device for automatic discharging is in use, the multi-stage lifting telescopic rod 13 is in the initial state of retraction, that is, the dustproof bin 8 and the lifting sleeve screens 7 of each layer are stacked on the top of the fixed sleeve screen 6 in sequence. (As shown in Figure 1 and Figure 2). When the aggregate needs to be screened, first, the aggregate to be screened is added to the screening module composed of the lifting sleeve 7 and the fixed sleeve 6 through the feed port 9 on the dustproof bin 8, and then Close feed inlet 9. Then, utilize the vibrating motor 22 of the screening vibration mechanism 4 to drive the T-shaped vibrating table 20 to reciprocate and vibrate on the vibrating table connection seat 21, and then make the lower bin 5, the fixed cover sieve 6 and the fixed sleeve sieve 6 arranged in sequence on the top of the screening vibration mechanism 4 The lifting sieve 7 generates synchronous vibrations to sieve the aggregates of different particle size ranges layer by layer through the lifting sieve 7 and the fixed sieve 6 whose sieve size decreases from top to bottom. The aggregates in the smaller particle size range after being sieved layer by layer by each layer of lifting sieve 7 and fixed sieve 6 will finally fall into the lower hopper 5 at the bottom, and slide down through the inner sloping plate 17 Go to the discharge outlet 14 corresponding to the position of the discharge inlet 16; after that, use the gate motor 26 to drive the discharge gate 18 to open, and discharge aggregates with smaller particle sizes from the discharge port 10. Simultaneously, the materials meeting the sieve diameters of the sieve sieves 7 and the fixed sieves 6 of each layer are temporarily stored in the casing 29 of the sieve (as shown in FIG. 12 ).

After the vibratory screening is completed, the telescopic rods at all levels of the multi-stage lifting telescopic rod 13 are driven by the telescopic rod drive mechanism 19 to stretch out, and then the lifting sleeve screens 7 of each layer that are respectively arranged on the telescopic rods at all levels are correspondingly raised (as shown in Figure 4 And as shown in Figure 5), enter the state of stratification and discharge. When it is necessary to select aggregates of a certain particle size or a certain range of particle sizes for automatic discharge, start the cylinder lifting mechanism 36 of a layer of lifting sieve 7 or a fixed sieve 6 of the corresponding sieve aperture to drive The sleeve sieve cylinder 29 rises, and then the sleeve sieve cylinder 29 and the conical screen surface 30 are separated from each other, so that the aggregates with the corresponding required particle size retained on the upper side of the conical screen surface 30 are discharged into the annular collection trough 33 (as shown in Figure 13). After the discharge is completed, the cylinder lifting mechanism 36 drives the casing sieve cylinder 29 to fall back to the initial position closed to the conical screen surface 30, and the ring groove discharge door 34 is opened; then, the material brush is driven by the material brush rotary motor 41 The rotary gear 42 rotates so that the material brush rotary motor 41 and the telescopic connecting column 40 and the collecting brush 38 at its lower part go around the cylinder outer edge teeth 43 and the material brush rotary track 44 on the outer wall of the sleeve sieve cylinder 29 together, Make a uniform circular motion in the annular collecting tank 33, and then push the aggregate with a specific particle size in the collecting tank to the discharge gate 34 of the circular tank, and then the aggregate is connected to the discharge gate 34 of the circular tank The slide guide hopper 35 is discharged into the spiral discharge chute 3, and is discharged from the discharge port 10 connected with the discharge inlet 16 at the end of the slide.

Claims (10)

1. An aggregate screening device for automatic discharge, comprising a bottom base (1), characterized in that: the bottom base (1) is provided with a screening vibration mechanism (4), and the screening vibration mechanism ( The upper part of 4) is provided with a lower hopper (5), and the upper part of the lower hopper (5) is provided with a fixed sleeve screen (6); the middle part of the fixed sleeve screen (6) is provided with a multi-stage lifting telescopic rod (13) , above the fixed sleeve screen (6) and on the telescopic rods at all levels of the multi-stage lifting telescopic rod (13), there are respectively provided with several lifting sleeve screens (7) with different sieve hole sizes, the multi-stage lifting telescopic rod The upper end of (13) is also provided with a dust-proof bin (8), the dust-proof bin (8) is provided with a material inlet (9), and the bottom base (1) is provided with a material outlet (10); and , the outer side of the lower silo (5), the fixed sieve (6) and the lifting sieve (7) are provided with a cover shell (2), and the inner wall of the cover shell (2) is provided with a spiral discharge slide Road (3). 2. The aggregate screening device for automatic discharge according to claim 1, characterized in that: several groups of vertically arranged slideway installation grooves (11) are provided on the inner wall of the outer cover shell (2) , the spiral discharge slideway (3) is fixedly connected with the slideway installation groove (11) at the corresponding position through several slideway connection protrusions (12). 3. The aggregate screening device for automatic discharge according to claim 1, characterized in that: the upper side of the bottom base (1) corresponds to the end of the spiral discharge chute (3) A discharge inlet (16) is provided, and a discharge slide chamber (23) arranged obliquely is arranged in the bottom base (1). The upper end of the discharge slide chamber (23) is connected with the discharge inlet (16). The lower end of the sliding chamber (23) is connected to the discharge port (10), and the discharge port (10) is provided with a discharge sliding door (24); the bottom base (1) is also provided with a shell connecting groove ( 25). 4. The aggregate screening device for automatic discharge according to claim 1, characterized in that: the screening vibration mechanism (4) includes a vibrating table connecting seat (21), and the vibrating table connecting seat (21) is connected to the bottom The upper side of the base (1) is connected, a T-shaped vibrating table (20) is arranged on the vibrating table connecting seat (21), and a vibrating motor (22) is arranged inside the T-shaped vibrating table (20), and the T-shaped vibrating table (20) is provided with a vibration motor (22). Several groups of buffer springs (15) are also arranged between the vibrating table surface of the type vibrating table (20) and the vibrating table connecting seat (21). 5. The aggregate screening device for automatic discharge according to claim 1, characterized in that: the inside of the lower silo (5) is provided with a horizontally arranged sloping plate (17), and the sloping plate is The lower end of (17) is connected to the discharge outlet (14) provided on the side wall of the discharge bin (5); and, the discharge outlet (14) is also provided with a discharge gate (18), the discharge gate The outer side of (18) is provided with a gate motor (26), and the output end of the gate motor (26) is provided with a gate drive gear (27). Gate arc rack (28) is engaged. 6. The aggregate screening device for automatic discharge according to claim 5, characterized in that: the lower end of the multi-stage lifting telescopic rod (13) is set at the bottom of the lower bin (5), and the multi-stage lifting telescopic rod (13) runs through the middle of the blanking ramp (17); and the telescopic rod drive mechanism (19) used to drive the multi-stage lifting telescopic rod (13) is located in the control chamber below the blanking ramp (17). Inside the silo (5) and above the sloping plate (17) is a feeding chamber; the side wall of the control chamber of the feeding bin (5) is also provided with several groups of cooling holes. 7. The aggregate screening device for automatic discharge according to claim 1, characterized in that: the structure of the fixed sieve (6) and the lifting sieve (7) are the same, and the fixed sieve (6) and the lifting sieve The sets of screens (7) all include a conical screen surface (30), and the conical screen surface (30) is fixedly connected to the telescopic rods of the multi-stage lifting telescopic rods (13) through the telescopic rod connection sleeve (31) provided in the middle. ; Above the conical sieve surface (30) there is a sleeve sieve cylinder (29), between which there is a cylinder for separating the two body lifting mechanism (36); and, the bottom of the casing (29) and the outside of the conical screen surface (30) are provided with a ring-shaped collection tank (33); the ring-shaped collection tank (33) Also be provided with ring groove discharge door (34) on the top, ring groove discharge door (34) links to each other with slideway guide hopper (35). 8. The aggregate and screening device for automatic discharge according to claim 7, characterized in that: the telescopic rod connecting sleeve (31) is provided with several groups arranged radially along the casing (29) The horizontal support connecting rod (32), the inner end of the horizontal supporting connecting rod (32) is fixedly connected with the telescopic rod connecting sleeve (31), and the outer end of the horizontal supporting connecting rod (32) is movably clamped on the cover screen cylinder (29 ) inside the cylinder lifting gap (37) correspondingly provided on the side wall; and, the cylinder lifting mechanism (36) includes a cylinder lifting rack (45) arranged vertically, and the cylinder lifting rack (45) is fixed It is arranged on the outer end of the horizontal support connecting rod (32), and the inner wall of the casing (29) is also fixed with a cylinder lifting motor (46), and the output end of the cylinder lifting motor (46) is set There is a cylinder elevating gear (47), and the cylinder elevating gear (47) is meshed with the cylinder elevating rack (45). 9. The aggregate screening device for automatic discharge according to claim 7, characterized in that: a collecting brush (38) is arranged in the annular collecting tank (33), and the brush of the collecting brush (38) The plate (39) is provided with a vertically arranged telescopic connecting column (40), the upper end of the telescopic connecting column (40) is fixedly provided with a material brush rotary motor (41), and the output end of the material brush rotary motor (41) is provided with a material brush rotary motor (41). gear (42), and the material brush rotary gear (42) meshes with the cylinder outer edge teeth (43) provided on the outer wall of the jacket cylinder (29); the shell of the material brush rotary motor (41) also passes through The slide block is slidably connected with the material brush rotary track (44) provided on the outer wall of the casing (29). 10. The aggregate screening device for automatic discharge according to claim 1, characterized in that: the dust-proof bin (8) includes a conical bin (48), and the interior of the conical bin (48) is set There is a material guide chamber (50), the upper end opening of the material guide chamber (50) is small, and the lower end opening is large, and the upper end of the conical bin body (48) is also provided with a feeding bin cover (49), the The feed inlet (9) is set on the feed bin cover (49); inside the conical bin body (48) there are several groups of horizontal support connecting rods (32) arranged radially along the bin body, the The outer end of the horizontal support connecting rod (32) is fixedly connected with the side wall of the conical warehouse body (48), and the inner end of the horizontal support connecting rod (32) is connected with the telescopic rod provided on the upper end of the multi-stage lifting telescopic rod (13). The connection sleeve (31) is fixedly connected.

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