CN115352804B

CN115352804B - Bucket elevator

Info

Publication number: CN115352804B
Application number: CN202211277372.XA
Authority: CN
Inventors: 高西善
Original assignee: Jiangsu Longlai Construction Engineering Co ltd
Current assignee: Jiangsu Longlai Construction Engineering Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-04-14
Anticipated expiration: 2042-10-19
Also published as: CN115352804A

Abstract

The invention relates to a bucket elevator, which comprises a material box and a machine shell arranged on the material box, wherein the machine shell comprises an outer shell and an inner shell which both extend along the vertical direction, at least three groups of lifting devices are arranged in a shape space between the outer shell and the inner shell, an arc-shaped material guide plate is arranged above the lifting devices, and a discharge hole is formed in the outer shell; hoisting device includes the motor, the sprocket, the chain and install a plurality of hoppers on the chain along chain extending direction interval, the hopper articulates on the chain, be equipped with the supporting shoe that supports the hopper when the hopper rises on the chain, the hopper receives the supporting role of supporting shoe and is in the horizontality when ascending along with the chain, keep away from the one end downswing of chain and make the hopper be in the tilt state when descending along with the chain, the hopper is equipped with the arc deflector dorsad open-ended one side, the arc deflector is arranged in will being guided to adjacent hoisting device's hopper by the material of landing in the top hopper. The invention achieves the effect of material return prevention, improves the conveying efficiency and reduces the load of the motor and the chain.

Description

Bucket elevator

Technical Field

The invention relates to the field of bucket elevators, in particular to a bucket elevator capable of preventing material return.

Background

When needs are from the low to eminence transported substance material, often can use bucket elevator, bucket elevator is a common material conveying equipment, be used for carrying the material to the eminence from the low, its major structure is by upper and lower two pairs of sprocket, chain and hopper are constituteed, the hopper is fixed in the chain outside, take the hopper to pass through chassis bottom when the chain, the hopper digs the material of storing in chassis bottom, the hopper that is equipped with the material rises along with the chain is quick, after the hopper reachs the chassis top, the material in the hopper is thrown away, and discharge gate from one side discharges.

The problem that current bucket elevator exists is: hopper fixed mounting is on the chain, and the hopper is in the vertically state all the time with the chain all the time, and when the hopper dug the material downwards, the hopper got into the material with horizontal gesture, and the material is digging in the downward back-off, and this kind of mode makes the hopper whole journey all be in the high resistance state, causes the motor to continuously receive higher load, increases the consumption of motor, and is unfavorable for the normal use of chain, because the bearing capacity of chain is too big, leads to the broken chain easily. In addition, when the hopper reaches the top of the machine shell, the material in the hopper close to the chain cannot be thrown out, but falls down along the chain and returns to the bottom of the machine shell, so that the conveying rate of the material is reduced.

Disclosure of Invention

The invention provides a bucket elevator, which aims to solve the technical problems of low conveying efficiency and large motor load of the bucket elevator in the prior art.

The bucket elevator adopts the following technical scheme:

a bucket elevator comprises a material box with a feeding port, wherein a machine shell is arranged on the material box and comprises an outer shell and an inner shell which both extend along the vertical direction, an annular space is formed between the outer shell and the inner shell, at least three groups of lifting devices are arranged in the annular space at intervals along the circumferential direction, arc-shaped material guide plates are respectively arranged above the lifting devices between the outer shell and the inner shell, and discharge ports which are in one-to-one correspondence with the lifting devices are arranged on the outer shell; every hoisting device of group all includes motor, sprocket, chain and along a plurality of hoppers of chain extending direction interval installation on the chain, the hopper articulates on the chain, be equipped with the supporting shoe that supports the hopper when the hopper rises on the chain, the hopper receives the supporting role of supporting shoe and is in the horizontality when rising along with the chain, keeps away from the one end downswing of chain when descending along with the chain and makes the hopper be in the tilt state, the hopper is equipped with the arc deflector to open-ended one side dorsad, the arc deflector is arranged in will being guided to the hopper of adjacent hoisting device by the material of landing in the top hopper.

Furthermore, the cross sections of the inner shell and the outer shell are square, the cross section of the annular space is square, the lifting devices are four groups and are respectively arranged on four sides of the annular space, and the four discharge ports are respectively positioned at four corners of the outer shell.

Furthermore, discharge barrels extending towards the outer side of the shell are respectively fixed at four corners of the shell, and openings of the discharge barrels form the discharge port.

Furtherly, the height inequality of four discharge gates, four discharge gates are the heliciform along the circumference of shell and distribute, be equipped with the collecting vat that extends along the circumference spiral of shell on the lateral wall of shell, the collecting vat is arranged in collecting the material of follow four discharge gates exhaust, the end of collecting vat is equipped with the material export.

Further, the arc-shaped guide plates on the hoppers of the four groups of lifting devices are consistent in orientation in the circumferential direction of the shell, so that the four groups of lifting devices are connected end to end.

Furthermore, motor support frames are respectively fixed on the side walls of four sides of the shell, motor rotating shaft holes are respectively formed in the shell above each motor support frame, the motors of the lifting devices are respectively and fixedly installed on the corresponding motor support frames, and rotating shafts of the motors respectively penetrate through the motor rotating shaft holes to be in transmission connection with the corresponding chain wheels.

Furthermore, articulated blocks which correspond to the hoppers one to one are fixed on the chain at intervals along the length extending direction, the supporting blocks are fixedly arranged on the articulated blocks, articulated grooves are formed in the articulated blocks, articulated shafts are fixed on the hoppers and are rotatably installed in the articulated grooves to realize the articulation of the hoppers and the chain.

Furthermore, mounting holes are formed in the chain at intervals along the length extending direction, fixing holes are correspondingly formed in the hinging blocks, and the hinging blocks are fixed on the chain through fasteners installed in the fixing holes and the mounting holes.

The invention has the beneficial effects that: through set up at least three hoisting device of group along circumference interval arrangement in the casing inside to set up the arc deflector at the back of hopper, the arc deflector can be with in the material guide to adjacent hoisting device's that falls down from the top hopper, and can not return to the chassis bottom, reach the purpose of preventing the feed back, improve conveying efficiency. Meanwhile, the hopper of each lifting device is hinged to the chain, when the hopper is at the highest point, materials begin to be thrown out, after the hopper crosses the highest point, one end of the hopper swings downwards by a certain angle under the action of gravity, so that the tail end of the hopper is in a state of being inclined downwards. Meanwhile, the hopper is folded and retracted to a certain angle in the descending process of the hopper, so that the space occupied by each lifting device can be reduced as much as possible, and the structure is more compact.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of a bucket elevator of the present invention;

fig. 2 is an exploded view of an embodiment of a bucket elevator of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic top view of a bucket elevator embodiment of the present invention;

FIG. 5 is a schematic view of the internal structure of FIG. 4;

FIG. 6 is a schematic view of the installation of the bucket and the chain of the bucket elevator according to the embodiment of the present invention;

in the figure: 100. a housing; 110. a motor; 120. a discharge port; 130. collecting tank; 140. a material outlet; 150. a motor rotating shaft hole; 160. an arc-shaped material guide plate; 170. a motor support frame; 200. a material box; 210. a feed inlet; 220. a material storage cavity; 300. an inner shell; 400. a lifting device; 410. a first chain; 411. mounting holes; 420. a sprocket; 430. a second chain; 440. a first hopper; 441. hinging shafts; 442. an arc-shaped guide plate; 443. a hopper cavity; 450. a second hopper; 460. a hinged block; 461. a fixing hole; 462. a hinge slot; 463. and (7) a supporting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In an embodiment of the bucket elevator of the present invention, as shown in fig. 1 to 6, the bucket elevator includes a bin 200 located at the bottom, the bin 200 has a loading opening 210 and a material storage cavity 220, a casing extending in an up-down direction is installed on the bin 200 above the material storage cavity 220, the casing includes an outer casing 100 and an inner casing 300 both extending in the up-down direction, and a top cover is installed on the top of the outer casing 100. In this embodiment, the outer casing 100 and the inner casing 300 are both of a regular quadrangular prism structure, the cross sections of the outer casing 100 and the inner casing 300 are both square, an annular space with a square cross section is formed between the outer casing 100 and the inner casing 300, four sets of lifting devices 400 are circumferentially arranged in the annular space at intervals, and the four sets of lifting devices 400 are respectively installed at four sides of the annular space. In other embodiments, three or five or more sets of lifting devices may be provided, while the shape of the outer and inner shells is adapted to the number of lifting devices.

Each set of lifting devices 400 includes a motor 110, a sprocket 420, a chain, and a plurality of buckets mounted on the chain at intervals along the direction of chain extension. The four side walls of the housing 100 are respectively fixed with motor supporting frames 170, motor rotating shaft holes 150 are respectively arranged above the motor supporting frames 170 on the housing 100, the motors 110 of the lifting devices are respectively fixedly arranged on the corresponding motor supporting frames 170, and the rotating shafts of the motors respectively penetrate through the motor rotating shaft holes 150 to be in transmission connection with the corresponding chain wheels 420. Arc-shaped material guide plates 160 are respectively arranged above the lifting devices between the outer shell 100 and the inner shell 300, the outer shell 100 is provided with discharge ports 120 corresponding to the lifting devices 400 one by one, and the four discharge ports 120 are respectively positioned at the positions close to the four corners of the outer shell 100. When the material discharging device is used, the motor 110 drives the chain wheel 420 to rotate, the chain wheel 420 drives the chain to rotate, the annular chain drives the hopper on the chain wheel to rotate around the chain wheel, the hopper picks up bottom materials and then lifts the materials upwards, and the materials are discharged from the upper discharging hole 120.

In the present invention, the hoppers are hinged on the chain, in this embodiment, the chain is fixed with hinge blocks 460 corresponding to the hoppers one by one at intervals along the length extending direction, the chain is provided with mounting holes 411 at intervals along the length extending direction, the hinge blocks 460 are correspondingly provided with fixing holes 461, and the hinge blocks 460 are fixed on the chain through fasteners installed in the fixing holes 411 and the mounting holes 461. The hinge block 460 is provided with a hinge groove 462, a hinge shaft 441 is fixed on the hopper, and the hinge shaft 441 is rotatably installed in the hinge groove 462 to realize the hinge of the hopper and the chain, so that one end of the hopper can swing relative to the chain. In order to ensure that the hopper can lift with materials, the chain is provided with a supporting block 463 for supporting the hopper when the hopper lifts, the supporting block 463 is fixedly arranged on the hinge block 460, the hopper is in a horizontal state under the supporting action of the supporting block 463 when the chain lifts, and one end of the hopper far away from the chain swings downwards to enable the hopper to be in an inclined state when the chain descends, and the supporting block 463 has no supporting action on the hopper in the process that the hopper descends to the front of digging. Here, it should be noted that: the size of the opening of the hinge groove 462 according to the present invention limits the downward swinging angle of the hopper, and as can be seen from fig. 6, the circular inner wall of the hinge groove 462 according to the present invention is a major arc, so that the lower groove edge of the hinge groove 462 can be stopped with the hopper when the hopper swings downward, so that the hopper is not in a completely vertical state, but stays in an inclined posture as shown in fig. 5. In addition, in order to ensure a better digging effect, the included angle between the hopper and the vertical direction is within the range of 20-40 degrees.

Each hopper one side that faces away from the opening all is equipped with arc deflector 442, and the ascending orientation of arc deflector 442 in shell circumference on four group's hoisting device 400's hopper for four group's hoisting device end to end, arc deflector 442 are arranged in will by the material guide of landing in the hopper of top to the hopper of adjacent hoisting device, and then play the purpose that reduces the feed back. Here, it should be noted that: not all the materials falling from the hopper can be guided into the hopper of the adjacent lifting device, but the arc-shaped guide plate 442 only can guide the materials falling into the inner side of the arc-shaped guide plate 442, and the arc-shaped guide plate 442 can guide most of the falling materials into the hopper of the adjacent lifting device, so that the effect of reducing material return is achieved.

In this embodiment, discharge barrels extending to the outside of the housing are respectively fixed to four corners of the housing 100, and openings of the discharge barrels constitute the discharge ports. The heights of the four discharge ports 120 are different, the four discharge ports 120 are spirally distributed along the circumferential direction of the housing 100, a collecting groove 130 spirally extending along the circumferential direction of the housing is arranged on the side wall of the housing 100, the collecting groove 130 is used for collecting materials discharged from the four discharge ports, a material outlet 140 is arranged at the tail end of the collecting groove 130, and the materials discharged from the four discharge ports are gathered together through the collecting groove 130 and finally discharged from the material outlet 140.

The working process of the bucket elevator is as follows: the material is fed from the feed inlet 210 of the material box 200, and the motor 110 drives the chain wheel 420 to rotate. Taking one of the lifting devices as an example, the first chain 410 rotates clockwise, and the left hopper in the first chain 410 picks up the material, and the material is lifted up. When the material is transported to the top of the lifting device 400, most of the material is thrown onto the arc-shaped material guiding plate 160 by the centrifugal force at the turning point of the first chain 410, and then goes out from the corresponding discharging hole 120 and falls into the collecting groove 130. A small amount of material falls to the back of bin one 440 and along the curved guide 442, where it is guided by the curved guide to the bin cavity 443 of the next set of lifters, i.e. bin two 450 on chain two 430, where it is lifted up again and out the corresponding outlet 120 of the lifter. Because the heights of the four groups of chains are different, the heights of the four groups of discharge ports 120 are also different, but the materials discharged from the four groups of discharge ports 120 all fall into the collecting trough 130 and are collected along the collecting trough 130 and discharged to a set collecting device through the material outlet 140. During the process of lifting the material, the hopper 440 on the left side is always in an open upward and horizontal state due to the supporting block 463. After the materials are thrown out, the materials can deflect downwards due to gravity to form a certain inclination angle, so that the materials which are not thrown out can slide into the hopper cavity 443 of the next group of lifting devices along the arc-shaped guide plate 442 at the bottom, and meanwhile, the space of the device for not conveying the materials is saved. The lower port of the hopper is firstly contacted with the material because the hopper inclines downwards; and in the process that the chain continues to rotate, because the hopper inclines and is close to the vertical state, the lower port of the hopper can be obliquely inserted into the material downwards, and meanwhile, because the back of the hopper is not supported, the hopper rotates upwards due to the resistance of the material until the hopper is supported and matched with the supporting block. Compared with the mode that the hopper is pressed into the material downwards from a horizontal posture for digging the material, the mode that the hopper is obliquely inserted into the material and then digs the material firstly reduces the process of horizontally pressing the hopper into the material, so that the chain only needs to bear the resistance of the dug material without bearing the resistance of horizontally pressing the material downwards, and the process that the material is most laboursome for digging the material is adopted, therefore, the resistance of the hopper entering the material is reduced, and meanwhile, after the hopper is in the material after being supported and matched with the supporting block, the chain only needs to drive the hopper to continue to dig the material downwards and lift the material, and the resistance of the chain is smaller than the resistance of the hopper which is pressed into the material horizontally in the prior art, so that the resistance of the hopper during digging at the lower part is reduced, and the device is protected.

In the invention, the hopper is connected to the chain in a swinging way, and can incline downwards after being unloaded, namely, the hopper is folded and folded for a certain angle, so that the hopper can be matched with the arc-shaped guide plate 442 to guide the materials falling from the hopper above into the hopper of the adjacent lifting device, and simultaneously, the space occupied by each lifting device can be reduced as much as possible, and the plurality of lifting devices are arranged more compactly. Meanwhile, the hopper is obliquely inserted into the material and digs the material downwards, so that the resistance of the hopper during digging the material is reduced, the load of a motor is reduced, the load of a chain is reduced, and the service life of equipment is prolonged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A bucket elevator comprises a material box with a feeding port, wherein a machine shell is arranged on the material box, and the bucket elevator is characterized in that the machine shell comprises an outer shell and an inner shell which both extend along the vertical direction, an annular space is formed between the outer shell and the inner shell, at least three groups of lifting devices are arranged in the annular space at intervals along the circumferential direction, arc-shaped material guide plates are respectively arranged above the lifting devices between the outer shell and the inner shell, and discharge ports which are in one-to-one correspondence with the lifting devices are arranged on the outer shell; every hoisting device of group all includes motor, sprocket, chain and installs a plurality of hoppers on the chain along chain extending direction interval, the hopper articulates on the chain, be equipped with the supporting shoe that supports the hopper when the hopper rises on the chain, the hopper receives the supporting role of supporting shoe and is in the horizontality when rising along with the chain, keeps away from the one end downswing of chain and makes the hopper be in the tilt state when the chain descends, the hopper is equipped with the arc deflector in one side of open-ended dorsad, the arc deflector is arranged in will being guided to the hopper of adjacent hoisting device by the material of landing in the top hopper.

2. The bucket elevator as set forth in claim 1, wherein the inner and outer shells have a square cross section, and the elevator has four sets of four outlets respectively disposed at four corners of the outer shell.

3. The bucket elevator as set forth in claim 2, wherein discharge cylinders extending outward of the casing are attached to four corners of the casing, and the openings of the discharge cylinders constitute the discharge ports.

4. The bucket elevator as set forth in claim 3, wherein the four discharge ports have different heights, the four discharge ports are spirally distributed along the circumferential direction of the housing, a collecting groove spirally extending along the circumferential direction of the housing is provided on the side wall of the housing, the collecting groove is used for collecting the materials discharged from the four discharge ports, and a material outlet is provided at the end of the collecting groove.

5. The bucket elevator as set forth in claim 2, wherein the arcuate guide plates on the buckets of the four sets of lifting devices are oriented in a uniform manner in the circumferential direction of the housing such that the four sets of lifting devices are connected end to end.

6. The bucket elevator as set forth in claim 2, wherein the four side walls of the housing are respectively fixed with motor support frames, the housing is provided with motor rotation shaft holes above the motor support frames, the motors of the respective elevator devices are respectively fixed on the corresponding motor support frames, and the rotation shafts of the respective motors are respectively connected with the corresponding chain wheels through the motor rotation shaft holes.

7. The bucket elevator as set forth in claim 1, wherein the chain is provided with hinge blocks at intervals in a lengthwise extending direction, the hinge blocks being in one-to-one correspondence with the buckets, the support blocks being fixed to the hinge blocks, the hinge blocks being provided with hinge grooves, the buckets being provided with hinge shafts rotatably mounted in the hinge grooves to hinge the buckets to the chain.

8. The bucket elevator as set forth in claim 7, wherein the chain has mounting holes spaced apart along the length direction, the hinge block has fixing holes corresponding thereto, and the hinge block is fixed to the chain by fasteners installed in the fixing holes and the mounting holes.