CN217707573U - Improved supporting device for connecting shaft of spiral conveyor - Google Patents
Improved supporting device for connecting shaft of spiral conveyor Download PDFInfo
- Publication number
- CN217707573U CN217707573U CN202221366686.2U CN202221366686U CN217707573U CN 217707573 U CN217707573 U CN 217707573U CN 202221366686 U CN202221366686 U CN 202221366686U CN 217707573 U CN217707573 U CN 217707573U
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- China
- Prior art keywords
- circular
- connecting shaft
- nylon
- support frame
- retainer
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- 239000004677 Nylon Substances 0.000 claims abstract description 46
- 229920001778 nylon Polymers 0.000 claims abstract description 46
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims abstract description 5
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Screw Conveyors (AREA)
Abstract
The utility model discloses a supporting device of modified screw conveyer connecting axle, it includes connecting axle, bolt, round pin axle, support frame and holder, the support frame is the T font, is equipped with the cylinder hole on the vertical center line, the cylinder is downthehole to be equipped with circular magnetic column, the upper end of circular magnetic column is equipped with the gland that is used for fixed circular magnetic column, the support frame lower extreme is equipped with the circle thru hole, the both sides terminal surface of circle thru hole is coaxial to be equipped with the nylon ring, the nylon ring outside is equipped with the holder to link together it through bolt, nut, plain washer; and a pin shaft is arranged between the two retainers, a nylon sleeve is sleeved in the middle of the pin shaft, and the nylon sleeve and the connecting shaft form rolling contact. The steel-nylon friction pair is adopted, so that the stress state is improved, the buffering and vibration reduction are realized, the noise is low, the service life of the connecting shaft is greatly prolonged, and the maintenance cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of conveyor, especially, relate to a strutting arrangement of modified screw conveyer connecting axle.
Background
The spiral conveyer is suitable for conveying powder materials with small granularity and is not suitable for conveying materials which are easy to deteriorate, viscosity and agglomerate. The working principle of the screw conveyer is that a rotating screw blade pushes materials to convey the materials. The spiral shaft of the spiral conveyor is welded with spiral blades, and the surface type of the blades has solid surface type, belt surface type and other types according to different conveyed materials. When the conveying distance exceeds 5m, an intermediate suspension bearing is added to prevent the screw shaft from being excessively deflected. Most of bearing bush materials of a middle suspension bearing of the existing screw conveyor are powder metallurgy, and a connecting shaft is 45 steel, so that due sealing effect cannot be achieved only by using felt as a sealing material. Materials are squeezed between the bearing bush and the connecting shaft, so that the bearing bush is extremely easy to wear, and the materials are conveyed due to the fact that the lubricant overflows to pollute the conveyed materials. Chinese patent ZL200920001846.1 "support device for connecting shaft of screw conveyor" discloses a support device for connecting shaft of screw conveyor, which can replace the suspension bearing of screw conveyor and has the same support function. The roller comprises a carrier roller, a press roller, an eyelet bolt, a bearing plate, a bracket and corresponding accessories, wherein an inner hole of a cylindrical spiral spring on the carrier roller is in clearance fit with a pin shaft, and an outer ring is in rolling contact with a connecting shaft. The structure has the advantages of high temperature resistance, no need of lubrication, automatic centering and the like. However, the trial shows that the elastic vibration generated in the rolling contact of the cylindrical spiral spring and the connecting shaft can generate larger noise, which is not beneficial to the indoor environment. In addition, the connecting shaft is made of 45 steel, the spring is made of 65Mn, and a friction pair formed by the connecting shaft and the spring is made of steel-steel. The hardness and wear resistance of the 65Mn material are higher than those of 45 steel, which causes the connecting shaft to be worn first, and the connecting shaft has much higher cost than a spring and is inconvenient to replace, thereby causing an increase in maintenance costs.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the utility model provides an improved supporting device for a connecting shaft of a screw conveyer, which uses a steel-nylon friction pair to replace a steel-steel friction pair, and solves the problems of high noise and high maintenance cost.
The technical scheme is as follows: in order to achieve the purpose, the utility model discloses an improved supporting device of a connecting shaft of a screw conveyor, which comprises the connecting shaft, a bolt, a pin shaft, a supporting frame and a retainer, wherein three circular through holes are uniformly distributed on the circumference of the retainer taking the axis of the connecting shaft as the center; the support frame is T-shaped, a cylindrical hole is formed in the vertical center line, a circular magnetic column is arranged in the cylindrical hole, a gland for fixing the circular magnetic column is arranged at the upper end of the circular magnetic column, a circular through hole is formed in the lower end of the support frame, nylon rings are coaxially arranged on the end surfaces of two sides of the circular through hole, the retainer is arranged on the outer side of each nylon ring, one circular through hole of the retainer is also coaxial with the circular through hole in the lower end of the support frame, and the circular through holes are connected together through bolts, nuts and flat washers; the other two circular through holes of the retainer are arranged on the lower side of the connecting shaft in a bilateral symmetry mode, a pin shaft is arranged between the two retainers, two ends of the pin shaft are matched with the circular through holes of the retainer, a nylon sleeve is sleeved in the middle of the pin shaft, and the nylon sleeve and the connecting shaft form rolling contact.
Furthermore, annular grooves are uniformly distributed on the outer cylindrical surface of the nylon sleeve, the width of each annular groove is changed between 5 mm and 7mm, and the depth of each annular groove is changed between 6 mm and 8 mm.
Further, the number of the annular grooves is 6-12.
Has the beneficial effects that: the utility model discloses a strutting arrangement of modified screw conveyer connecting axle compares with prior art, and beneficial effect is: (1) The utility model discloses in, form steel-nylon friction pair through nylon cover and connecting axle, improved the stress state, the buffering damping, the noise is low, has greatly improved the life of connecting axle, has reduced the maintenance cost. (2) The round magnetic column is arranged inside the support frame, and part of iron particles mixed in the material can be sucked up, so that the nylon sleeve and the connecting shaft are prevented from being extruded into a friction pair, and abrasion is reduced. (3) In addition, the outer cylindrical surface of the nylon sleeve is provided with an annular groove, hard particles mixed in materials can fall down from the groove, the materials can be prevented from being adhered to the connecting shaft, and the damage to the nylon sleeve and the connecting shaft is reduced. (4) The utility model also has the advantages of no need of lubrication, no pollution to materials, convenient maintenance, etc.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 isbase:Sub>A sectional view taken along line A-A of the present invention;
FIG. 3 is a schematic perspective view of the present invention;
figure 4 is the structure schematic diagram of the nylon sleeve of the utility model.
In the figure: 1. the bearing comprises a gland, 2 parts of a support frame, 3 parts of a circular magnetic column, 4 parts of a nylon ring, 5 parts of a retainer, 6 parts of a bolt, 7 parts of a nut, 8 parts of a flat washer, 9 parts of a connecting shaft, 10 parts of a nylon sleeve and 11 parts of a pin shaft.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, an improved supporting device for a connecting shaft of a screw conveyor comprises a connecting shaft 9, a bolt 6, a pin shaft 11, a supporting frame 2 and a retainer 5, wherein three circular through holes are uniformly distributed on the circumference of the retainer 5 taking the axis of the connecting shaft 9 as the center; the support frame 2 is T-shaped, a cylindrical hole is arranged on the vertical center line, a circular magnetic column 3 is arranged in the cylindrical hole, a gland 1 for fixing the circular magnetic column 3 is arranged at the upper end of the circular magnetic column 3, a circular through hole is arranged at the lower end of the support frame 2, nylon rings 4 are coaxially arranged on the end surfaces of the two sides of the circular through hole, the outer side of each nylon ring 4 is provided with the retainer 5, one circular through hole of the retainer 5 is also coaxial with the circular through hole at the lower end of the support frame 2, and the circular through holes are connected together through a bolt 6, a nut 7 and a flat washer 8; for better locking, a double nut connection may be used. The other two circular through holes of the retainer 5 are arranged on the lower side of the connecting shaft 9 in a bilateral symmetry mode, a pin shaft 11 is arranged between the two retainers 5, two ends of the pin shaft 11 are matched with the circular through holes of the retainer 5, a nylon sleeve 10 is sleeved in the middle of the pin shaft 11, and the nylon sleeve 10 is in rolling contact with the connecting shaft 9.
As shown in figure 4, annular grooves are uniformly distributed on the outer cylindrical surface of the nylon sleeve 10, the width of each annular groove is changed between 5 mm and 7mm, and the depth of each annular groove is changed between 6 mm and 8 mm. The number of the annular grooves is 6-12. The design parameters and the number of the annular grooves can be reasonably selected according to the specification of the screw conveyer.
The utility model discloses the connected mode with the casing is the same with prior art, and bolted connection is passed through on being fixed in the casing at the both ends of support frame 2. When the nylon sleeve 10 is worn, the nut 7 is unscrewed, the retainers 5 on the two sides of the support frame 2 are loosened, the pin shaft 11 sleeved with the nylon sleeve 10 is taken down, a new nylon sleeve 10 is replaced, and then the nylon sleeve 10 is installed.
The utility model discloses a dry friction that steel and nylon formed, the event need not use lubricating oil, and nylon materials low price, and the change of being convenient for has reduced cost of maintenance, and fundamentally has avoidd the possibility that lubricating grease pollutes the material yet.
The nylon sleeve 10 is in rolling contact with the connecting shaft 9, so that the stress state is improved, the buffer and vibration reduction are realized, and the noise is low; in addition, the outer cylindrical surface of the nylon sleeve 10 is provided with an annular groove, hard particles mixed in materials can fall from the groove, the materials can not be adhered to the shaft, and the damage to the nylon sleeve 10 and the connecting shaft 9 is reduced; the nylon ring 4 sleeved on the bolt 6 has a pressing effect on the radial runout of the connecting shaft 9, and the contact between the connecting shaft 9 and the nylon sleeve 10 is ensured. The nylon sleeve 10 itself can rotate on the pin 11 in a proper amount, so that the abrasion is more uniform.
Nylon is a widely used engineering plastic variety at present, and the nylon composite material has the advantages of light weight, easy processing, strong self-lubricating property and the like, and is applied to friction components such as gears, cams, bearings and the like and injection molding components.
Nylon PA66 is a wide variety of PA series with high mechanical strength. Its crystallinity is high, so that its rigidity, hardness and heat-resisting property are good, and the yield strength of PA66 is greater than that of PA6, friction coefficient is small and its cracking resistance is good. The nylon PA66 can also be reinforced, mainly takes glass fiber as a reinforcing material, and obviously improves the hardness, the creep property, the dimensional stability and the heat resistance after the content of the glass fiber is more than 30 percent.
Materials such as cement and the like crushed by the crusher are mixed with iron particles, and the iron particles are extruded into the friction pair to aggravate the abrasion of the nylon sleeve 10 and the connecting shaft 9. For conveying the materials, the magnetic cylinder 3 can be placed in the support frame 2 to adsorb iron particles in partial materials, so that the abrasion is reduced.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (3)
1. The utility model provides a strutting arrangement of modified screw conveyer connecting axle, includes connecting axle (9), bolt (6), round pin axle (11), support frame (2) and holder (5), its characterized in that: three circular through holes are uniformly distributed on the circumference of the retainer (5) by taking the axis of the connecting shaft (9) as the center; the support frame (2) is T-shaped, a cylindrical hole is formed in the vertical center line, a circular magnetic column (3) is arranged in the cylindrical hole, a gland (1) for fixing the circular magnetic column (3) is arranged at the upper end of the circular magnetic column (3), a circular through hole is formed in the lower end of the support frame (2), nylon rings (4) are coaxially arranged on the end surfaces of two sides of the circular through hole, the retainer (5) is arranged on the outer side of each nylon ring (4), one circular through hole of the retainer (5) is also coaxial with the circular through hole in the lower end of the support frame (2), and the circular through holes are connected together through bolts (6), nuts (7) and flat washers (8); the retainer is characterized in that the other two circular through holes of the retainer (5) are arranged on the lower side of the connecting shaft (9) in a bilateral symmetry mode, a pin shaft (11) is arranged between the two retainers (5), two ends of the pin shaft (11) are matched with the circular through holes of the retainer (5), a nylon sleeve (10) is sleeved in the middle of the pin shaft (11), and the nylon sleeve (10) is in rolling contact with the connecting shaft (9).
2. An improved supporting device of a connecting shaft of a spiral conveyor as claimed in claim 1, wherein: annular grooves are uniformly distributed on the outer cylindrical surface of the nylon sleeve (10), the width of each annular groove is changed between 5 mm and 7mm, and the depth of each annular groove is changed between 6 mm and 8 mm.
3. An improved supporting device of a connecting shaft of a spiral conveyor as claimed in claim 2, wherein: the number of the annular grooves is 6-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221366686.2U CN217707573U (en) | 2022-06-02 | 2022-06-02 | Improved supporting device for connecting shaft of spiral conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221366686.2U CN217707573U (en) | 2022-06-02 | 2022-06-02 | Improved supporting device for connecting shaft of spiral conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217707573U true CN217707573U (en) | 2022-11-01 |
Family
ID=83797235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221366686.2U Active CN217707573U (en) | 2022-06-02 | 2022-06-02 | Improved supporting device for connecting shaft of spiral conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217707573U (en) |
-
2022
- 2022-06-02 CN CN202221366686.2U patent/CN217707573U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |