CN210995222U - Aggregate fine screening machine - Google Patents
Aggregate fine screening machine Download PDFInfo
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- CN210995222U CN210995222U CN201921934725.2U CN201921934725U CN210995222U CN 210995222 U CN210995222 U CN 210995222U CN 201921934725 U CN201921934725 U CN 201921934725U CN 210995222 U CN210995222 U CN 210995222U
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- screening machine
- bevel gear
- rotating shaft
- aggregate
- aggregate fine
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Abstract
The utility model relates to the field of screening equipment, and discloses an aggregate fine screening machine.A second motor is utilized to drive a two-layer separation type screen to respectively rotate in the forward direction and the reverse direction relative to a shell, so that the torsion can be mutually offset, the aggregate fine screening machine keeps balance in operation, the problems of blockage and damage of the screen caused by the accumulation phenomenon at the lower end of the existing aggregate screening machine are avoided, and the aggregate can be screened efficiently and stably; the problems of material waste and workload increase caused by manual screen supplement due to the defects of the conventional screening machine are solved; the operation is flexible, the structure is simple, the maintenance and the repair are convenient, the stability and the applicability are good, and the popularization space is large.
Description
Technical Field
The utility model relates to a screening equipment field, concretely relates to fine screening machine gathers materials.
Background
At present, a known aggregate screening machine is cylindrical and is internally provided with a plurality of layers of screening trays, and the screening trays are internally provided with screens with gradually decreasing pore diameters from top to bottom. Aggregate such as sand, gravel and the like is placed on the sieve tray, the aggregate sieving machine simulates the action and the process of manual sieving of human beings, so that the sieve tray does circular motion on the plane, the aggregate with different particle sizes and the sieve screen generate relative motion, the aggregate smaller than the size of the sieve mesh passes through the sieve mesh, and the aggregate larger than the size of the sieve mesh can be remained on the sieve surface, thereby realizing the purpose of sieving the aggregate.
Aggregate screening is often performed in tests using an aggregate screening machine. Currently, the known aggregate screening machines have the following disadvantages in use: because the ground flatness is not good enough, the aggregate screening machine is in a non-completely horizontal placing state on the ground, and when the aggregate screening machine is used for aggregate screening under the state, aggregate can incline under the action of gravity and is accumulated to the lower end of the screen. Aggregate is accumulated on the screen at the lower end, so that on one hand, the screen at the lower end of the screen is blocked and damaged, and the service life of the device is influenced; on the other hand, the screen mesh at a higher end cannot be effectively utilized due to lack of aggregate in the screening process, and the screening efficiency of the aggregate is greatly reduced.
Based on the above problems, aggregate can not reach the expected screening purpose after being screened by the existing aggregate screening machine, and manual screen supplement is still needed in a manual screening mode, namely, a screening person holds a standard screen to shake so as to achieve the screening purpose. The manual screen supplement not only causes a great deal of waste of aggregate, leads to serious dust pollution and brings harm to the health of a screener, but also has the disadvantages of high working strength, time and labor waste and low efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an aggregate fine screening machine, which utilizes a second motor to drive a two-layer separating screen to respectively rotate in the forward direction and the reverse direction relative to a shell, can offset the torsion force mutually, keeps the balance of the aggregate fine screening machine in operation, avoids the problems of the blockage and the damage of the screen caused by the accumulation phenomenon at the lower end of the existing aggregate screening machine, and can efficiently and stably screen aggregates; the problems of material waste and workload increase caused by the fact that the existing screening machine needs to be manually supplemented due to self defects are solved, the operation is flexible, the structure is simple, the maintenance and the repair are convenient, the stability and the applicability are good, and the popularization space is large.
In order to achieve the above purpose, the present invention adopts the following technical solution.
An aggregate fine screening machine comprising: a base; the base is sequentially provided with a speed regulator, a vibration table, a screening chassis, a separating screen and a shell from bottom to top;
the vibration table comprises a base, a speed regulator, a first motor, a driving gear, three driven gears, an eccentric rotating shaft and a vibration table, wherein the base is internally provided with the first motor, an output shaft of the first motor is connected with the speed regulator, the output shaft of the speed regulator is provided with the driving gear, the driving gear is uniformly engaged with the three driven gears in the circumferential direction, and the eccentric rotating shaft is arranged in each driven gear and connected with the vibration table;
the vibrating table is connected with the screening chassis through a spring support, a second motor is arranged in the screening chassis, a driving bevel gear is arranged on an output shaft of the second motor, a first driven bevel gear and a second driven bevel gear which are vertically meshed with the driving bevel gear are arranged on the driving bevel gear, and the first driven bevel gear and the second driven bevel gear are arranged in parallel;
a forward rotating shaft is assembled in the first driven bevel gear, a reverse rotating shaft is assembled in the second driven bevel gear, the forward rotating shaft and the reverse rotating shaft are coaxial, and the upper ends of the forward rotating shaft and the reverse rotating shaft are respectively connected with a separating screen;
the screening chassis is fixed with multistage shell, the disconnect-type screen cloth sets up between adjacent two-stage shell, just the disconnect-type screen cloth with shell sliding connection is located and is provided with the feeding lid on the shell of upper level.
Preferably, the separating screen comprises four symmetrically arranged sectors, the inner end of each sector is fixedly connected with the forward rotating shaft and the reverse rotating shaft respectively, and the outer ends of the sectors are connected with the shell in a sliding manner.
Preferably, the upper end surface and the lower end surface of the outward side of the sector are respectively provided with a slide rail, the shells adjacent to the sector are respectively fixed with a bearing seat, and a bearing matched with the slide rail is assembled in the bearing seat.
Preferably, the fan surface is inclined upwards from inside to outside.
Further preferably, the angle of inclination of the sectors is 5 °.
Preferably, the bottom end of the side wall of the shell of each stage is provided with a discharge hole.
Preferably, a slot is arranged at the discharge port on the side wall of the shell, and an inserting plate is assembled in the slot.
Preferably, a discharge nozzle is arranged on the side wall of the shell at the discharge port.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic perspective view of the aggregate fine screening machine of the present invention;
FIG. 2 is an internal cross-sectional view of FIG. 1;
FIG. 3 is a schematic illustration of the housing of FIG. 1 coupled to a split screen;
FIG. 4 is a schematic illustration of a sector of the split screen of FIG. 3;
the structure of the discharge nozzle at the discharge opening is schematically shown in fig. 5 1.
In the above figures: 1, a base; 2, a speed regulator; 3, vibrating a table; 4, screening the base plate; 5 a separating screen; 510 sectors; 511 slide rails; 6, a shell; 601 a bearing; 602, a discharge hole; 7 a first motor; 701 an eccentric rotating shaft; 8, a spring bracket; 9 a second motor; 910 a drive bevel gear; 920 a first driven bevel gear; 921 forward rotation axis; 930 a second driven bevel gear; 931 reverse rotating shaft; 10 feeding cover; 11 a discharge nozzle; 1101 an arc frame; 1102 rectangular box.
Detailed Description
Referring to fig. 1-5, an aggregate fine screening machine according to an embodiment of the present disclosure includes: a base 1; the base 1 is sequentially provided with a speed regulator 2, a vibration table 3, a screening base plate 4, a separating screen 5 and a shell 6 from bottom to top; a first motor 7 is arranged in the base 1, an output shaft of the first motor 7 is connected with the speed regulator 2, an output shaft of the speed regulator 2 is provided with a driving gear, the driving gear is uniformly engaged with three driven gears in the circumferential direction, an eccentric rotating shaft 701 is arranged in each driven gear, and the eccentric rotating shaft 701 is connected with the vibrating table 3; the vibrating table 3 is connected with the screening chassis 4 through a spring support 8, a second motor 9 is arranged in the screening chassis 4, a driving bevel gear 910 is arranged on an output shaft of the second motor 9, a first driven bevel gear 920 and a second driven bevel gear 930 vertically meshed with the driving bevel gear 910 are arranged on the driving bevel gear 910, and the first driven bevel gear 920 and the second driven bevel gear 930 are arranged in parallel; a forward rotating shaft 921 is assembled in the first driven bevel gear 920, a reverse rotating shaft 931 is assembled in the second driven bevel gear 930, the forward rotating shaft 921 and the reverse rotating shaft 931 are coaxial, and the upper ends of the forward rotating shaft 921 and the reverse rotating shaft 931 are respectively connected with a separating screen 5; the screening chassis 4 is fixed with a multi-stage shell 6, the separating screen 5 is arranged between the two adjacent stages of shells 6, the separating screen 5 is connected with the shells 6 in a sliding mode, and a feeding cover 10 is arranged on the shell 6 on the uppermost stage.
In the above examples, the aggregate scalping machines were 400mm by 600mm (length by width by height). An output shaft of a first motor 7 in the base 1 is connected with the speed regulator 2 through a coupler, and a driving gear on the output shaft of the speed regulator 2 can drive the three driven gears to horizontally rotate so as to drive the eccentric rotating shafts 701 assembled on the three driven gears to rotate. The eccentric rotating shaft 701 circularly moves on the horizontal plane to drive the vibrating table 3 and the screening base plate 4 to horizontally rotate correspondingly, so that the screening process of human beings is simulated. The vibrating table 3 and the screening base plate 4 are connected through a spring support 8 to play a role in buffering and supporting.
A second motor 9 is arranged in the screening chassis 4, and a driving bevel gear 910 on an output shaft of the second motor 9 rotates in the vertical direction, so that a first driven bevel gear 920 meshed with the driving bevel gear can be driven to rotate forward in the horizontal direction and a second driven bevel gear 930 can be driven to rotate reversely in the horizontal direction; the first driven bevel gear 920 drives the separating screen 5 connected with the first driven bevel gear to rotate forwards through the forward rotating shaft 921, the second driven bevel gear 930 drives the other separating screen 5 connected with the second driven bevel gear to rotate reversely through the reverse rotating shaft 931, the reverse rotating shaft 931 is sleeved into the forward rotating shaft 921 in a sliding mode, the two separating screens 5 coaxially and respectively rotate in opposite directions, and the rotating speed of the separating screens 5 is 360 degrees per minute. The center of the separating screen 5 is connected to the forward rotation shaft 921 and the reverse rotation shaft 931, respectively, and the outer edge of the separating screen 5 is slidably disposed between the adjacent casings 6, so that the separating screen 5 can rotate relatively between the casings 6. The adjacent shells 6 are respectively provided with corresponding bolt holes, bolts are assembled in the bolt holes, the adjacent shells 6 are fixed through the bolts, and the disassembly and the assembly are convenient. And a feeding cover 10 is fixed on the shell 6 at the uppermost layer through bolts, so that aggregate can be conveniently filled.
The utility model discloses an in the fine screening machine gathers materials, disconnect-type screen cloth 5 can relative shell 6 slowly rotate, makes gather materials and screen cloth produce relative motion, makes to gather materials can not block and die at the sieve mesh and cause the screen cloth to block up and destroy, and four sifters of constituteing the screen cloth are under the rotation, and the change position is sieved gathering materials in turn, has avoided the current problem that local screening efficiency is low that the screening machine that gathers materials caused because of the local jam of screen cloth. And the second motor 9 drives the two layers of separating screens 5 to respectively rotate in the forward direction and the reverse direction, so that the torsion can be mutually offset, the aggregate fine screening machine keeps balance in operation, and the stability of the fine screening machine is improved.
Referring to fig. 1-4, according to an embodiment of the present invention, the separating screen 5 comprises four sectors 510 symmetrically disposed, an inner end of each sector 510 is fixedly connected to the forward rotation shaft 921 and the reverse rotation shaft 931, respectively, and an outer end of each sector 510 is slidably connected to the housing 6.
In the above embodiment, the separation screen 5 is composed of four sectors 510, and the central angle of each sector 510 is 90 °. The forward rotating shaft 921 and the reverse rotating shaft 931 are respectively sleeved with a screen sleeve and fixed through a clamp, the inside of each screen surface is fixedly connected with the screen sleeves through bolts, the edge of each sector 510 is slidably arranged between the adjacent shells 6, and lubricating grease is smeared on the outer edge of each sector 510 for lubrication. The detachable design of the separating screen 5 increases the applicability of the aggregate fine screening machine, and is convenient to detach, install, maintain, repair and the like. The screen cloth is stainless steel, and thickness is 4mm, and the sector interval is 100mm, can change corresponding aperture size's disconnect-type screen cloth 5 according to the screening demand of difference.
Referring to fig. 3-4, according to an embodiment of the present invention, the upper and lower end surfaces of the outward side of the sector 510 are respectively provided with a slide rail 511, and the housing 6 adjacent to the sector 510 is respectively fixed with a bearing 601 seat, and the bearing 601 seat is internally equipped with a bearing 601 matching with the slide rail 511.
In the above embodiment, the opposite end surfaces of the adjacent shells 6 are respectively provided with a clamping groove, a bearing 601 seat is assembled in the clamping groove, the bearing 601 is fixed in the bearing 601 seat through a bearing 601 pin, the outer edge of the separating screen 5 is provided with a circular slide rail 511 matched with the bearing 601, so that the sliding connection between the separating screen 5 and the shells 6 is realized, and the aggregate and the screen generate relative motion; and the upper and lower end surfaces of the separating screen 5 are connected by the bearing 601 and the slide rail 511, so that the friction force can be reduced remarkably.
Referring to fig. 1 to 3, according to an embodiment of the present invention, the sector 510 is disposed to be inclined upward from the inside to the outside, and the inclination angle of the sector 510 is 5 °.
In the above embodiment, the separation type screen 5 is inwardly recessed, that is, each sector 510 is inclined outward and upward from the center of the rotation shaft (the forward rotation shaft 921 or the reverse rotation shaft 931) by an angle of 5 °. The inside sunken effective screening area that can increase under same shell diameter of disconnect-type screen cloth 5 simultaneously also can make to gather materials homodisperse on pivoted disconnect-type screen cloth 5, avoids appearing the phenomenon of piling up of gathering materials.
Referring to fig. 1-3, according to an embodiment of the present invention, the bottom end of the sidewall of the housing 6 at each stage is provided with a discharge port 602.
In the above embodiment, the bottom end of the side wall of the housing 6 corresponding to each layer of the separation type screen 5 is provided with the discharge port 602, so that the screened material with the corresponding particle size can be conveniently taken out through the discharge port 602.
According to the utility model discloses an embodiment, lie in on the lateral wall of shell 6 discharge gate 602 department is provided with the slot, be equipped with the picture peg in the slot.
In the above embodiment, the closing of the discharge port 602 is achieved by inserting the insert plate into the slot, and the discharge port 602 can be closed in the case of a small amount of sieving.
Referring to fig. 5, according to an embodiment of the present invention, a discharge nozzle 11 is provided on the sidewall of the housing 6 at the discharge port 602.
In the above embodiment, the discharge nozzle 11 includes the arc frame 1101 and the rectangular frame 1102 which are integrally formed; the arc-shaped frame 1101 is matched with the outer wall of the shell 6 in shape, four screws are symmetrically arranged at the discharge port 602 of the shell 6, bolt holes corresponding to the positions of the screws are formed in the arc-shaped frame 1101, and the screws penetrate through the corresponding bolt holes and are fixed through nuts, so that the discharge nozzle 11 is fixed at the discharge port 602 of the shell 6. Under the condition that screening volume is great and need continuous screening, install discharge nozzle 11 in discharge gate 602 department, realized the purpose of continuous ejection of compact, the flexibility is good, and the practicality is strong.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims (8)
1. An aggregate fine screening machine, comprising: a base (1); the base (1) is sequentially provided with a speed regulator (2), a vibration table (3), a screening base plate (4), a separating screen (5) and a shell (6) from bottom to top;
a first motor (7) is arranged in the base (1), an output shaft of the first motor (7) is connected with the speed regulator (2), a driving gear is arranged on an output shaft of the speed regulator (2), three driven gears are uniformly meshed in the circumferential direction of the driving gear, an eccentric rotating shaft (701) is arranged in each driven gear, and the eccentric rotating shafts (701) are connected with the vibration table (3);
the vibrating table (3) is connected with the screening chassis (4) through a spring support (8), a second motor (9) is arranged in the screening chassis (4), a driving bevel gear (910) is arranged on an output shaft of the second motor (9), a first driven bevel gear (920) and a second driven bevel gear (930) which are vertically meshed with the driving bevel gear (910) are arranged on the driving bevel gear (910), and the first driven bevel gear (920) and the second driven bevel gear (930) are arranged in parallel;
a forward rotating shaft (921) is assembled in the first driven bevel gear (920), a reverse rotating shaft (931) is assembled in the second driven bevel gear (930), the forward rotating shaft (921) and the reverse rotating shaft (931) are coaxial, and the upper ends of the forward rotating shaft (921) and the reverse rotating shaft (931) are respectively connected with a separating screen (5);
the screening machine is characterized in that a multi-stage shell (6) is fixed on the screening base plate (4), the separating screen (5) is arranged between the adjacent two-stage shells (6), the separating screen (5) is connected with the shells (6) in a sliding mode, and a feeding cover (10) is arranged on the shell (6) on the uppermost stage.
2. The aggregate fine screening machine according to claim 1, characterized in that the separating screen (5) comprises four symmetrically arranged sectors (510), the inner end of each sector (510) is fixedly connected with the forward rotating shaft (921) and the reverse rotating shaft (931) respectively, and the outer end of each sector (510) is slidably connected with the housing (6).
3. The aggregate fine screening machine according to claim 2, characterized in that the upper and lower end surfaces of the outward side of the sector (510) are respectively provided with a slide rail (511), the housing (6) adjacent to the sector (510) is respectively fixed with a bearing (601) seat, and the bearing (601) seat is internally provided with a bearing (601) matched with the slide rail (511).
4. Aggregate fine screening machine according to claim 2, characterized in that said sectors (510) are inclined upwards from the inside to the outside.
5. Aggregate fine screening machine according to claim 4, characterized in that the angle of inclination of the sectors (510) is 5 °.
6. Aggregate fine screening machine according to claim 1, characterized in that the bottom end of the side wall of the casing (6) of each stage is provided with a discharge outlet (602).
7. Aggregate fine screening machine according to claim 6, characterized in that slots are provided in the side walls of the housing (6) at the outlet (602), inside which slots insert plates are fitted.
8. Aggregate fine screening machine according to claim 6, characterized in that a discharge nozzle (11) is provided on the side wall of the housing (6) at the discharge opening (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934725.2U CN210995222U (en) | 2019-11-11 | 2019-11-11 | Aggregate fine screening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934725.2U CN210995222U (en) | 2019-11-11 | 2019-11-11 | Aggregate fine screening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210995222U true CN210995222U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921934725.2U Expired - Fee Related CN210995222U (en) | 2019-11-11 | 2019-11-11 | Aggregate fine screening machine |
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| Country | Link |
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| CN (1) | CN210995222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139026A (en) * | 2020-08-19 | 2020-12-29 | 淮矿生态农业有限责任公司 | High-quality rice screening mechanism with dust removal function |
| CN112495751A (en) * | 2020-12-18 | 2021-03-16 | 中国矿业大学 | Conical multilayer rotary screen and rotary screen sample method thereof |
-
2019
- 2019-11-11 CN CN201921934725.2U patent/CN210995222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139026A (en) * | 2020-08-19 | 2020-12-29 | 淮矿生态农业有限责任公司 | High-quality rice screening mechanism with dust removal function |
| CN112495751A (en) * | 2020-12-18 | 2021-03-16 | 中国矿业大学 | Conical multilayer rotary screen and rotary screen sample method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20201111 |