CN217321973U - Device for preventing bucket elevator off tracking - Google Patents
Device for preventing bucket elevator off tracking Download PDFInfo
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- CN217321973U CN217321973U CN202221180781.3U CN202221180781U CN217321973U CN 217321973 U CN217321973 U CN 217321973U CN 202221180781 U CN202221180781 U CN 202221180781U CN 217321973 U CN217321973 U CN 217321973U
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Abstract
The utility model discloses a device for preventing the deviation of a bucket elevator, which is characterized in that a pair of limiting wheels are additionally arranged on the shaft of a direction-changing chain wheel of the bucket elevator, and the limiting wheels are additionally arranged outside the shaft of the direction-changing chain wheel; because of the influence of the bolt protrusion of the direction-changing chain wheel, the centers of the limiting wheels are provided with through holes, the periphery of the central through hole is provided with a groove structure, and the annular parts of the two limiting wheel shafts, which exceed the diameter of the direction-changing chain wheel, are provided with slopes with the gradient of 5-8 degrees. The technical method for completely controlling the left and right swing of the chain is realized by additionally arranging the limiting wheels for limiting the moving range of the chain at the outer sides of the two bend sprockets, the phenomena of groove separation and blockage caused by the fact that the chain and the bend sprockets are not on the same vertical plane at the main operation part are completely eliminated, and the moving track of the chain is completely controlled.
Description
Technical Field
The utility model relates to a device for preventing bucket elevator off tracking belongs to lifting machine auxiliary assembly field.
Background
The bucket elevator is a mechanical equipment for lifting material and continuously conveying, which is widely applied in multiple fields, and the upper part and the lower part of the bucket elevator are respectively provided with a pair of transmission chain wheels and a redirection chain wheel. The novel lifting device has the advantages of large conveying capacity, high lifting height, wide lifting range, low requirements on the types and properties of materials, stable and reliable operation, good sealing property, low environmental pollution and the like. However, due to the reasons of manufacturing materials, manufacturing process, mounting accuracy, material unbalance loading and the like, a chain (bucket chain) of a moving part often deviates, gnaws a wheel, even breaks away from a groove and is blocked, if the chain of a main operation part and a bend chain wheel are not on the same vertical plane, the bucket elevator cannot normally operate, bucket elevator materials overflow to pollute the environment, meanwhile, boiler slag cannot be discharged in time, the situation that the furnace slag level is too high due to long-time recovery causes the normal operation of a boiler to be influenced, unplanned furnace shutdown occurs, and even a slag well collapses due to the fact that the slag accumulation in the boiler exceeds the design load, so that serious production safety accidents and environmental protection accidents are caused. Meanwhile, equipment is damaged due to frequent groove separation and blockage, and the labor intensity of workers, the maintenance cost of personnel and the maintenance cost of the equipment are increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for preventing bucket elevator off tracking aims at solving because of the not enough problem that leads to the off tracking of bucket elevator in service of existing equipment design, installation accuracy.
The utility model discloses an at bucket elevator change to sprocket wheel epaxial increase a pair of spacing wheel to the restriction changes to sprocket department chain and moves at the certain limit, realizes by spacing round complete control chain operation orbit, effectively avoids the chain frequently to take place to take off the groove, block and hinder, makes equipment can last high-efficient steady operation.
The utility model adopts the technical proposal that: a device for preventing a bucket elevator from deviating is characterized in that a pair of limiting wheels are additionally arranged on a direction-changing chain wheel shaft of the bucket elevator and are additionally arranged outside a pair of direction-changing chain wheel shafts; because of the influence of the bolt protrusion of the redirection chain wheel, the limiting wheel is designed to be concave.
In order to prevent the chain of the redirection chain wheel from contacting with the limiting wheel, the linear speed of the limiting wheel exceeding the far end part of the diameter of the redirection chain wheel is higher than the running speed of the conveying chain driving the redirection chain wheel to rotate, so that relative displacement is generated to cause mutual abrasion, and the slope surface with the gradient of 5-8 degrees is formed on the annular part of the two limiting wheel shafts exceeding the diameter of the redirection chain wheel towards the inner edge through practical verification, so that the side shift and groove shedding of the chain are avoided, and the possibility of large-area contact between the chain and the limiting wheel and mutual abrasion are reduced.
Furthermore, when the limiting wheel is connected with the wheel shaft of the direction-changing chain wheel, the bearing is adopted for connection, so that the rotating speed of the limiting wheel can be automatically adjusted along with the running speed of the chain when the limiting wheel is in contact with the chain of the direction-changing chain wheel, and the relative displacement and mutual abrasion caused by the speed difference between the telecentric lateral line speed of the limiting wheel and the running speed of the chain are further eliminated.
In order to reduce the abrasion degree of the limiting wheel, the hardness of the limiting wheel needs to be improved, and the limiting wheel is made of 16M or cast iron. Meanwhile, in order to ensure the strength of the limiting wheel, the thickness d of the bottom of the concave part of the limiting wheel is required to be more than or equal to 30 mm.
Further, the diameter of the central groove of the limiting wheel is the axial direction 3 The diameter of the inner edge of the slope surface of the limiting wheel is in 4 The most outer edge of the limiting wheel has a diameter in the middle 5 (ii) a In the diameter of the limit wheel 3 = Ø 2 + 2X 20mm, the diameter of the limit wheel is in 4 = Ø 1 + 2X 10mm, the diameter of the limit wheel is in 5 = Ø 4 + 2X 50 mm; in which the middle rail 2 For changing the diameter of the circle where the center of the fixing bolt on the chain wheel is located 1 To redirect the diameter of the sprocket outer edge.
Further, the depth of the inner groove of the limiting wheel is e = h + b-c +5 mm; wherein, b is the thickness of the redirection chain wheel, h is the projection height of the bolt on the side surface of the redirection chain wheel, and c is the width of the chain driving the redirection chain wheel to rotate.
The utility model provides a prevent device of bucket elevator off tracking, the beneficial effect who brings:
(1) the technical method for completely controlling the left and right swing of the chain is realized by adding the limiting wheels for limiting the moving range of the chain at the outer sides of the two turnabout sprockets, the phenomena of groove separation and blockage caused by the fact that the chain and the turnabout sprockets are not on the same vertical plane at the main operation part are completely eliminated, and the moving track of the chain is completely controlled.
(2) The abnormal operation of the bucket elevator can also cause the overflow of slag, pollute the environment and generate environmental protection events and adverse social effects. The technical means of additionally arranging the limiting wheels can effectively avoid the occurrence of the events.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram (partially cut away) of the present invention.
FIG. 2 is a schematic view of a construction of a direction-changing sprocket.
Fig. 3 is a side view of fig. 2.
Fig. 4 is a schematic structural view of the limiting wheel.
Fig. 5 is a left side view of fig. 4.
Fig. 6 is an assembly view of the direction-changing sprocket, the limiting wheel and the chain.
In the figure: 1 is the chain, 2 is the bolt, 3 is the redirection sprocket, 4 is spacing wheel, 5 is domatic, 6 is the through-hole, 7 is the recess.
Detailed Description
Example (b):
as shown in figures 1-6, the device for preventing the deviation of the bucket elevator is characterized in that a pair of limiting wheels 4 are additionally arranged on a wheel shaft of a direction-changing chain wheel 3 of the bucket elevator and are additionally arranged on the axial outer sides of the direction-changing chain wheel 3, and the structural schematic diagram is shown in figure 1.
Because of the influence of the bolt protrusion of the direction-changing chain wheel, the center of the limiting wheel 4 is provided with a through hole 6, a groove 7 is arranged around the central through hole 6, and the annular part of the two limiting wheel shafts, which exceeds the diameter of the direction-changing chain wheel, is provided with a slope 5 with the gradient of 5-8 degrees.
The axial center distance of the bend chain wheel is a, the diameter of the outer edge is in the middle 1 The thickness is b, the original design of the turnabout chain wheel considers the problem of abrasion, the outer side of the turnabout chain wheel is additionally provided with a wear-resistant sleeve and fixed by bolts, the protruding height of the bolts on the side surface of the turnabout chain wheel is h, and the centers of all the bolts are positioned in the diameter of the middle of the turnabout chain wheel 2 The schematic diagrams of which are shown in fig. 2 and 3. The width of the chain driving the redirection chain wheel to rotate is c. The design structure diagram of the limiting wheel is shown in figures 4 and 5. In the limit wheel 3 In the central section 4 The distance between the formed annular surface and the outer side surface of the redirection chain wheel is c-b. Because of the influence of the bolt protrusion of the direction-changing chain wheel, the limiting wheel is designed to be concave, and the gap between the protruding end part of the bolt and the concave part of the limiting wheel is 5mm, so that the depth of the concave part is e = h + b-c +5 mm. The thickness of the bottom of the concave part of the limiting wheel is d. In the diameter of the limit wheel 3 The selection of the direction changing chain wheel takes into account that the bolts on the direction changing chain wheel can not contact the limiting wheel to cause unnecessary abrasion, so that the direction changing chain wheel can move in the same direction 3 = Ø 2 + 2X 20 mm. The diameter of the central groove of the limiting wheel is in the center 3 The diameter of the inner edge of the slope surface of the limiting wheel is in 4 The most outer edge of the limiting wheel has a diameter in the middle 5 。
In order to prevent the chain part from contacting with the limiting wheel, the linear speed of the limiting wheel exceeding the diameter telecentric end part of the redirection chain wheel is higher than the speed of the conveying chain driving the redirection chain wheel to rotate, so that relative displacement is generated to cause mutual abrasion, and the practical verification shows that the chain part is in the middle of the diameter of the limiting wheel 4 = Ø 1 The center of the + 2X 10mm to the diameter 5 The annular part (the outermost edge) is made into a slope surface with the gradient of 5-8 degrees, so that the chain is prevented from moving laterally, and the possibility of large-area contact between the chain and the limiting wheel and mutual abrasion are reduced.
Furthermore, when the limiting wheel is connected with the wheel shaft of the direction-changing chain wheel, the bearing is adopted for connection, so that the rotating speed of the limiting wheel can be automatically adjusted along with the running speed of the chain when the limiting wheel is in contact with the chain of the direction-changing chain wheel, and the relative displacement and mutual abrasion caused by the speed difference between the telecentric lateral line speed of the limiting wheel and the running speed of the chain are further eliminated.
In the diameter 5 The size is selected, considering that the rotation diameter of the chain is increased due to overlarge change of the tightness degree, the rotation diameter is defined according to the maximum rotation diameter 5 = Ø 4 + 2X 50 mm. Therefore, the problem that the swinging is not controlled due to the fact that the chain is too loose is avoided, and the chain is prevented from being separated from the disc surface of the redirection chain wheel to cause blocking.
In order to reduce the abrasion degree of the limiting wheel, the hardness of the limiting wheel needs to be improved, and the limiting wheel is made of 16M or cast iron. Meanwhile, in order to ensure the strength of the limiting wheel, the thickness d of the bottom of the concave part of the limiting wheel is required to be more than or equal to 30 mm.
Claims (6)
1. The utility model provides a prevent device of bucket elevator off tracking which characterized in that: a pair of limiting wheels are additionally arranged on a direction-changing chain wheel shaft of the bucket elevator, and the limiting wheels are additionally arranged on the axial outer sides of the direction-changing chain wheels; because of the influence of the bolt protrusion of the direction-changing chain wheel, the centers of the limiting wheels are provided with through holes, the periphery of the central through hole is provided with a groove structure, and the annular parts of the two limiting wheel shafts, which exceed the diameter of the direction-changing chain wheel, are provided with slopes with the gradient of 5-8 degrees.
2. The device for preventing the bucket elevator from deviating as claimed in claim 1, wherein: when the limiting wheel is connected with the wheel shaft of the direction-changing chain wheel, the bearing is adopted for connection, so that the rotating speed of the limiting wheel can be automatically adjusted along with the running speed of the chain when the limiting wheel is in contact with the chain of the direction-changing chain wheel.
3. The device for preventing the bucket elevator from deviating as claimed in claim 1, wherein: the limiting wheel is made of 16M steel or cast iron.
4. The device for preventing the bucket elevator from deviating as claimed in claim 1, wherein: the bottom thickness d of the groove part at the center of the limiting wheel is more than or equal to 30 mm.
5. The device of claim 1 for preventing the bucket elevator from runningThe device that inclines, its characterized in that: the diameter of the groove at the center of the limiting wheel is in the same direction 3 The diameter of the inner edge of the slope surface of the limiting wheel is in 4 The most outer edge of the limiting wheel has a diameter in the middle 5 (ii) a In the diameter of the limit wheel 3 = Ø 2 + 2X 20mm, the diameter of the limiting wheel in the same direction 4 = Ø 1 + 2X 10mm, the diameter of the limiting wheel in the same direction 5 = Ø 4 + 2X 50 mm; in which the middle 2 For changing the diameter of the circle where the center of the fixing bolt on the chain wheel is located 1 To redirect the diameter of the sprocket outer edge.
6. The device for preventing the bucket elevator from deviating as claimed in claim 1, wherein: the depth of the groove in the limiting wheel is e = h + b-c +5 mm; wherein, b is the thickness of the redirection chain wheel, h is the protruding height of the bolt on the side surface of the redirection chain wheel, and c is the width of the chain driving the redirection chain wheel to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221180781.3U CN217321973U (en) | 2022-05-17 | 2022-05-17 | Device for preventing bucket elevator off tracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221180781.3U CN217321973U (en) | 2022-05-17 | 2022-05-17 | Device for preventing bucket elevator off tracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217321973U true CN217321973U (en) | 2022-08-30 |
Family
ID=82953527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221180781.3U Active CN217321973U (en) | 2022-05-17 | 2022-05-17 | Device for preventing bucket elevator off tracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217321973U (en) |
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2022
- 2022-05-17 CN CN202221180781.3U patent/CN217321973U/en active Active
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