CN217836888U

CN217836888U - Conical bottom silo discharging device

Info

Publication number: CN217836888U
Application number: CN202221682597.9U
Authority: CN
Inventors: 雷军; 陈昭华; 张琰彬; 张�杰; 黄冰; 边新和; 杨健; 陈津洋; 王玉刚
Original assignee: Yichang Jiewei Machinery Equipment Co ltd
Current assignee: Yichang Jiewei Machinery Equipment Co ltd
Priority date: 2022-07-02
Filing date: 2022-07-02
Publication date: 2022-11-18
Anticipated expiration: 2032-07-02

Abstract

The utility model provides a silo discharging device at bottom of awl, which comprises a bod, the organism includes top charging tray and the braced frame of setting in top charging tray bottom, the top charging tray is connected bottom the silo with the awl, top charging tray bottom is equipped with out the feed cylinder, it is equipped with down flange to go out the feed cylinder bottom, top charging tray top is equipped with the decompression awl, the decompression awl sets up in the silo at the bottom of the awl, be equipped with a plurality of material mouths on the decompression awl, the decompression awl is connected with the main shaft, the main shaft lower extreme passes out the feed cylinder, slewing bearing's inner circle passes through bolted connection with the lower flange that goes out the feed cylinder, the main shaft lower extreme passes through coupling mechanism and slewing bearing's outer lane and is connected, slewing bearing drives through actuating mechanism. The device can force to break the arch, is favorable to the silo ejection of compact of awl bottom, can not gush in a large number and cause the discharge gate to block up, and the moving part resistance of equipment reduces by a wide margin.

Description

Conical bottom silo discharging device

Technical Field

The utility model relates to a grain delivery equipment field of feed bin, in particular to awl end silo discharging device.

Background

The cone bottom silo is widely applied to industries such as wineries, grain and oil, feeds, chemical engineering and the like, the cone bottom silo is mostly adopted when various bulk materials such as grains, rice husks and the like are stored, and materials in the silo flow out from a discharge hole at the bottom of the cone hopper under the action of self gravity when the materials are unloaded. The fluidity of materials in the silo mainly depends on the self-repose angle and the friction angle, and the self-flowing discharging can be realized only when the inclination angle of a conical hopper at the lower part of the silo is not less than 55 degrees, so that for the silo with larger volume (diameter), the conical hopper part needs enough height, the whole silo and the gravity center thereof are heightened, and the construction cost is obviously increased; even so, after the materials in the bin are stored for a period of time, under the action of various physical and chemical factors such as extrusion, heat dissipation, moisture removal and the like, the phenomena of hardening, arching and the like are easy to occur, so that the discharging is difficult or the materials cannot be taken out of the bin, and the production operation is seriously influenced; therefore, a discharging device is required to be arranged at the bottom of the conical hopper of the silo to forcibly break the arch, so that the material is restored to a flowing state and is discharged smoothly.

The arch-breaking discharging device of the current conical bottom silo generally adopts a spiral silo discharging machine, one end of a discharging spiral is supported by a rotating mechanism at the bottom, the other end of the discharging spiral obliquely extends into the conical hopper of the silo by adopting an overhanging structure, and the upper edge of the rotating mechanism is connected with the lower end of the conical hopper of the silo. When the discharging device works, the discharging screw revolves around the central axis of the silo in the conical hopper of the silo and rotates around the central axis of the discharging screw, namely, the screw body sweeps the inner wall of the side surface of the conical hopper of the silo to powerfully break the hardening and arching phenomena of materials in the silo, and meanwhile, the helical blades also rotate ceaselessly to push the contacted materials to move downwards to the discharging port. The discharge screw usually adopts the mode of encorbelmenting, only has one end to install on rotary mechanism, and the other end then hangs in the air and stretches into the silo inside, in order to cover great scanning area promotion broken arch effect, the discharge screw needs sufficient length, in order to guarantee sufficient rigidity and intensity this moment, the discharge screw needs thick main shaft diameter, the positive area of contact who faces the material when the discharge screw moves in the awl fill is very big, start and also produce very big resistance when moving.

When the discharge screw adopts a cantilever mode, if only one set of driving device is used for completing two motions of revolution and rotation, the transmission mechanism is complex and is positioned at the discharge port, the complex mechanism not only occupies space or a route to block material flow, but also is easy to break down and difficult to maintain, so that the rotation and the revolution are respectively completed by two sets of driving devices usually, and hydraulic driving is sometimes adopted for obtaining large torque.

When the discharging spiral revolves, the autorotation driving device also revolves in a large-range space, in order to prevent the cable from being twisted and broken, wiring is required to be led in from the inside of the central area of the rotating mechanism, a collecting ring is used, and according to the current relevant specification, a 20 area with high dust explosion danger level is involved, so that explosion-proof electrical equipment and a sealing installation mode with corresponding level are required to be adopted, even if the explosion-proof collecting ring is still required to be installed in the inside of the central area of the rotating mechanism, the motor of the discharging spiral is connected with the collecting ring through a cable, and the collecting ring is connected with an external cable to obtain driving electric energy and control signals.

When the discharging screw moves in the bin, the contact area of the front side facing the material is large, so that the resistance is large when the discharging screw is buried in the material and starts and runs, the torque and the power of a matched driving device are high, even a hydraulic device is required to be equipped for driving, and the rotation and the revolution of the discharging screw are respectively completed by two sets of driving devices; in addition, electrical wiring needs to be introduced into the rotating mechanism, explosion-proof electrical equipment of a corresponding level needs to be adopted for ensuring safety, but an explosion-proof collecting ring still needs to be installed in the rotating mechanism and is limited by a narrow space, and the maintenance is inconvenient when a fault occurs; couplings or couplings for the discharge screw also face this problem.

Disclosure of Invention

The utility model aims to solve the technical problem that a silo discharging device at bottom of awl is provided, can force broken the arch, is favorable to the silo ejection of compact at bottom of the awl, can not gush in a large number and cause the discharge gate to block up, and the moving part resistance of equipment reduces by a wide margin.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a silo discharging device at bottom of awl, which comprises a bod, the organism includes top charging tray and the braced frame who sets up in top charging tray bottom, the top charging tray is connected bottom the silo at the bottom of the awl, top charging tray bottom is equipped with out the feed cylinder, it is equipped with flange down to go out the feed cylinder bottom, top charging tray top is equipped with the decompression awl, the decompression awl sets up in the silo at the bottom of the awl, be equipped with a plurality of material mouths on the decompression awl, the decompression awl is connected with the main shaft, the main shaft lower extreme passes out the feed cylinder, slewing bearing's inner circle passes through bolted connection with the lower flange that goes out the feed cylinder, the main shaft lower extreme passes through coupling mechanism and slewing bearing's outer lane and is connected, slewing bearing drives through actuating mechanism.

In the preferred scheme, a plurality of scrapers are arranged on the upper side of the machine body and are connected with the main shaft.

In a preferred scheme, the scraper of the scraper is of a curved structure.

In the preferred scheme, the scraper is connected with the decompression cone through a connecting plate, the connecting plate is connected with the main shaft through a connecting rod, and a material blocking ring is arranged on the upper side of the machine body and connected with the end part of the scraper.

In a preferred scheme, a separation bar grid is arranged on the material opening.

In a preferred scheme, the connecting mechanism comprises a main shaft barrel, the main shaft barrel is connected with the connecting inner barrel through a connecting rib plate, the connecting inner barrel is connected with the main shaft through threads, an upper connecting flange is arranged at the upper end of the main shaft barrel, and the upper connecting flange is connected with the outer ring of the slewing bearing through a bolt.

In the preferred scheme, a discharge hopper is arranged at the bottom of the main shaft cylinder and is connected with the supporting frame through a supporting frame.

In a preferred scheme, the driving mechanism comprises a driving shaft arranged on the supporting frame, a driving gear matched with gear teeth on an outer ring of the slewing bearing is arranged on the driving shaft, a synchronizing gear is arranged at the other end of the driving shaft, and a driving gear matched with the synchronizing gear is arranged at the output end of the driving motor.

In the preferred scheme, the top of the main shaft is provided with a lifting lug plate.

The utility model provides a pair of silo discharging device at bottom of awl has following beneficial effect:

1. the energy consumption of the equipment is greatly reduced. Through setting up the decompression awl with the separation material, scrape the glassware and can not buried by the material that the top collapses, resistance and torque when reducing the start-up by a wide margin. The rotation of the pressure reducing cone makes the material flow into the lower part of the pressure reducing cone with limited flow rate and no sudden and great surging.

2. First-in first-out and stable material flow are realized.

When the decompression awl of adoption is rotatory, the material stream is also being cut in the incessant rotation of the material mouth of its side for the material velocity of flow that leaks into decompression awl below is limited, evenly leaks down from each angle direction moreover, realizes first-in first-out, and the velocity of flow of material is directly correlated with the rotational speed of decompression awl in addition, both even and controllable.

3. The apparatus operates using only one rotational movement.

The decompression awl with scrape the glassware and all install on same root main shaft, the rotation of main shaft drives the decompression awl and scrapes the glassware motion, accomplish disturbance material and scrape the material ejection of compact. The driving mechanism is fixed on the supporting frame, does not reciprocate or rotate in a large space range, and can be provided with a comprehensive enclosing device.

4. The driving device and the transmission assembly are all positioned outside the storage bin.

The driving mechanism is arranged outside the storage bin, and the explosion-proof grade requirement of the electrical equipment is low. The driving motor is fixed on the supporting frame and does not rotate along with the moving device, and a collecting ring assembly is not needed. The transmission assembly is completely positioned outside the stock bin and the material channel, and the lubricant can not pollute the material, thereby being convenient for maintenance and overhaul.

5. The scraper of the scraper adopts a spiral form, when the scraper rotates along with the main shaft, the scraper is easy to wedge into materials, can obtain better pushing effect, has smaller stress and is not easy to twist and bend.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a right side view of the present invention;

fig. 4 is a top view of the present invention;

fig. 5 is a cross-sectional view of the present invention;

FIG. 6 is a schematic view of the connection of the spindle to the connection mechanism;

FIG. 7 is a schematic perspective view of the scraper;

FIG. 8 is a top view of the scraper;

in the figure: the device comprises a machine body 1, a pressure reducing cone 2, a main shaft 3, a slewing bearing 4, a material scraping device 5, a connecting plate 6, a material blocking ring 7, a main shaft cylinder 8, a connecting ribbed plate 9, a connecting inner cylinder 10, a discharge hopper 11, a support frame 12, a driving gear 13, a synchronous gear 14, a driving motor 15, a driving gear 16, a hoisting lug plate 17, a driving shaft 18, a top material tray 101, a support frame 102, a discharge hopper 103, a lower connecting flange 104, a material port 201, a separation bar grid 202 and an upper connecting flange 801.

Detailed Description

As shown in figures 1 to 4, the conical bottom silo discharging device is arranged at the bottom of a conical hopper of a silo to be used as a silo discharging machine, is suitable for silos with the diameter less than or equal to 12m, and is generally transported within 3000m in a aspect of warehouse capacity.

The device comprises a machine body 1, wherein the machine body 1 comprises a top material tray 101 and a supporting frame 102 arranged at the bottom of the top material tray 101, the top material tray 101 is of a disc structure, the top material tray 101 is connected with the bottom of a conical-bottom silo, and the top material tray 101 is connected with a main material port of the conical-bottom silo through a flange structure.

Top charging tray 101 bottom is equipped with out feed cylinder 103, go out feed cylinder 103 and set up the central point at top charging tray 101 and put, go out feed cylinder 103 bottom and be equipped with down flange 104, top charging tray 101 top is equipped with decompression awl 2, decompression awl 2 can be conical or frustum shape, decompression awl 2 sets up in the silo of awl end, be equipped with a plurality of material mouths 201 on the decompression awl 2, decompression awl 2 is connected with main shaft 3, main shaft 3 supports decompression awl 2, the 2 outsides of decompression awl can set up disturbance line or disturbance part, the reinforcing is to reinforcing disturbance effect, make the arching position collapse. The decompression cone 2 separates the materials in the silo above the decompression cone, and the conical or frustum-shaped structure can disperse the huge pressure caused by the weight of a large amount of materials stacked above, so that the resistance and the torque during starting and running are reduced, and the power required by the device is reduced.

The lower end of the main shaft 3 penetrates through the discharging barrel 103 and extends to the lower part of the top material plate 101, the inner ring of the slewing bearing 4 is connected with the lower connecting flange 104 of the discharging barrel 103 through bolts, the lower end of the main shaft 3 is connected with the outer ring of the slewing bearing 4 through a connecting mechanism, gear teeth are arranged on the outer side of the slewing bearing 4, and the slewing bearing 4 is driven through a driving mechanism. The drive mechanisms may be arranged in one or more groups to cooperate.

Preferably, a plurality of scrapers 5 are arranged on the upper side of the machine body 1, and the scrapers 5 are connected with the main shaft 3. The scraper 5 rotates synchronously with the main shaft 3.

The slewing bearing 4 can realize that the main shaft 3 and the machine body 1 form relative motion, namely under the condition that the machine body 1 is only static after being fixed with the bottom of the silo cone, the main shaft 3 can rotate according to requirements, and meanwhile, the pressure reducing cone 2 and the scraper 5 which are arranged on the main shaft 3 are not contacted with the machine body 1, so that the pressure reducing cone 2 and the scraper 5 rotate together with the main shaft 3 and also form relative motion with the machine body 1.

When materials are loaded in the silo, the materials are stacked above the decompression cone 2, when the materials arch, the device is started to enable the decompression cone 2 to rotate, at the moment, the outer side surface of the decompression cone 2 and the static materials move relatively, and the materials are disturbed to damage the arch part. Because the rotary scanning motion of decompression awl 2, the velocity of flow that the material leaked into decompression awl 2 below from the material mouth 201 of its side is limited controllable, the arch forming position collapses the back material and can not gush in a large number decompression awl 2 below and bury scraper 5 and main shaft 3, along with scraping the material, 5 rotatory will leak the material propelling movement of decompression awl 2 below and go to the feed cylinder 103 of organism 1 central zone, pass through behind slewing bearing 4's passageway position and main shaft 3 and coupling mechanism's the gap position in proper order, realize the ejection of compact.

The velocity of flow under the interior material leaks into decompression awl 2 through the material mouth 201 of decompression awl 2 side is limited, can not gush into a large amount of materials suddenly and will scrape glassware 5 below the decompression awl and bury, guarantees that the glassware 5 of scraping of decompression awl 2 below can in time push the material that flows into decompression awl 2 below to the feed cylinder 103 of organism 1 central zone. Therefore, the resistance of the device during starting and running is greatly eliminated, the installed power and the required torque of the device are greatly reduced, energy can be saved, consumption can be reduced, and the requirements on materials and strength are reduced through a reasonable structural form.

Preferably, as shown in fig. 7 to 8, the scraper of the scraper 5 has a curved structure. Specifically, the scraper of the scraper 5 adopts a specially designed spiral form, the scraper of the scraper 5 expands from the central area to the periphery in a spiral form, and when the scraper 5 rotates along with the main shaft 3, the scraper is easy to wedge into a material, so that a better pushing effect can be obtained, and the scraper has small stress and is not easy to twist and bend. The arc-shaped scrapers of the scraper 5 can be two, three or more to form a group, so that the scrapers can be wedged into materials better in the advancing process, a better scraping effect is obtained, and the resistance and the energy consumption are reduced. The scraper 5 with a spiral structure has small stress and is not easy to bend and damage.

Through setting up scraper 5, when stirring the material, make it along scraping scraper 5 to go out feed cylinder 103 removal, realize the ejection of compact smoothly.

Preferably, scrape glassware 5 and be connected with decompression awl 2 through connecting plate 6, connecting plate 6 is connected with main shaft 3 through the connecting rod, 1 upside of organism is equipped with and keeps off material ring 7, keeps off material ring 7 and scrapes 5 end connection of glassware.

Scrape glassware 5 and be connected with decompression awl 2 through connecting plate 6, connecting plate 6 is connected with main shaft 3 through the connecting rod and supports the reinforcement, makes scrape glassware 5, decompression awl 2 and main shaft 3 and connect and constitute wholly with increase strength and stability. Through setting up connecting plate 6, can prevent when scraping the material, scrape glassware 5 and produce the deformation, improve its intensity, improve the stability and the torsional property of component, reduce the component specification of selecting materials.

Scrape 5 tip of glassware through setting up the material ring 7 on the one hand and connect each, improve the intensity of scraping glassware 5, on the other hand can block the material on the top charging tray 101, with scrape glassware 5 cooperation, can prevent that the material from removing to the tip gap of scraping glassware 5.

The material port 201 is provided with a separation bar grid 202. The dividing grid 202 can also be replaced by a grid, which can significantly enhance the turbulence effect on the material above the decompression cone 2.

Preferably, as shown in fig. 6, the connecting mechanism includes a main shaft cylinder 8, the main shaft cylinder 8 is connected with a connecting inner cylinder 10 through a connecting rib plate 9, the connecting inner cylinder 10 is connected with the main shaft 3 through a thread, an upper connecting flange 801 is arranged at the upper end of the main shaft cylinder 8, and the upper connecting flange 801 is connected with the outer ring of the slewing bearing 4 through a bolt. The space between the connecting inner cylinder 10 and the main shaft cylinder 8 can be blanked.

Further, a discharge hopper 11 is arranged at the bottom of the main shaft cylinder 8, and the discharge hopper 11 is connected with the support frame 102 through a support frame 12.

The upper end of the discharge hopper 11 is connected with the main shaft cylinder 8, and the lower end is connected with subsequent conveying equipment. The discharging hopper 11 is arranged to gather and guide the discharged materials.

Preferably, as shown in fig. 6, the driving mechanism includes a driving shaft 18 disposed on the supporting frame 102, a driving gear 13 engaged with gear teeth on the outer ring of the slewing bearing 4 is disposed on the driving shaft 18, a synchronizing gear 14 is disposed at the other end of the driving shaft 18, a driving gear 16 engaged with the synchronizing gear 14 is disposed at the output end of the driving motor 15, and the driving motor 14 is mounted on the supporting frame 102.

The driving mechanism can be provided with one group or a plurality of groups for cooperative work, and the driving mechanism drives the slewing bearing 4 to rotate so as to drive the main shaft 3 to rotate.

Preferably, the top of the main shaft 3 is provided with a lifting lug plate 17. The main shaft 3 and the decompression cone 2 are conveniently hoisted by arranging the hoisting lug plates 17, so that the equipment is convenient.

Claims

1. The utility model provides a bore silo discharging device of end, a serial communication port, including organism (1), organism (1) includes top charging tray (101) and sets up braced frame (102) in top charging tray (101) bottom, top charging tray (101) are connected with bore silo bottom, top charging tray (101) bottom is equipped with out feed cylinder (103), it is equipped with down flange (104) to go out feed cylinder (103) bottom, top charging tray (101) top is equipped with decompression awl (2), decompression awl (2) set up in bore silo of end, be equipped with a plurality of material mouths (201) on decompression awl (2), decompression awl (2) are connected with main shaft (3), main shaft (3) lower extreme passes out feed cylinder (103), the inner circle of slewing bearing (4) passes through bolted connection with the lower flange (104) of play feed cylinder (103), main shaft (3) lower extreme passes through coupling mechanism and is connected with the outer lane of slewing bearing (4), slewing bearing (4) drive through actuating mechanism.

2. The discharge device of the conical-bottom silo according to claim 1, characterized in that a plurality of scrapers (5) are arranged on the upper side of the machine body (1), and the scrapers (5) are connected with the main shaft (3).

3. The discharge device of a conical-bottom silo according to claim 2, characterized in that the scraper of the scraper (5) is of a curved structure.

4. The discharging device of the conical-bottom silo according to claim 2, characterized in that the material scraper (5) is connected with the pressure reducing cone (2) through a connecting plate (6), the connecting plate (6) is connected with the main shaft (3) through a connecting rod, a material blocking ring (7) is arranged on the upper side of the machine body (1), and the material blocking ring (7) is connected with the end part of the material scraper (5).

5. The discharge device of a conical-bottom silo according to claim 1, characterized in that the discharge opening (201) is provided with a separation bar grid (202).

6. The discharge device of the cone-bottom silo as claimed in claim 1, wherein the connection mechanism comprises a main shaft cylinder (8), the main shaft cylinder (8) is connected with a connection inner cylinder (10) through a connection rib plate (9), the connection inner cylinder (10) is in threaded connection with the main shaft (3), an upper connection flange (801) is arranged at the upper end of the main shaft cylinder (8), and the upper connection flange (801) is in bolted connection with the outer ring of the slewing bearing (4).

7. The discharge device of the cone-bottom silo according to claim 6, characterized in that the discharge hopper (11) is arranged at the bottom of the main shaft cylinder (8), and the discharge hopper (11) is connected with the support frame (102) through a support frame (12).

8. The discharge device of the cone-bottom silo as claimed in claim 1, characterized in that the drive mechanism comprises a drive shaft (18) arranged on the support frame (102), the drive shaft (18) is provided with a drive gear (13) engaged with the gear teeth on the outer ring of the slewing bearing (4), the other end of the drive shaft (18) is provided with a synchronizing gear (14), and the output end of the drive motor (15) is provided with a drive gear (16) engaged with the synchronizing gear (14).

9. The discharge device of the cone-bottom silo as claimed in claim 1, characterized in that the top of the main shaft (3) is provided with a lifting lug (17).