CN215521590U - Thermal-insulated shape ceramic positioning axle of preapring for an unfavorable turn of events - Google Patents
Thermal-insulated shape ceramic positioning axle of preapring for an unfavorable turn of events Download PDFInfo
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- CN215521590U CN215521590U CN202121745901.5U CN202121745901U CN215521590U CN 215521590 U CN215521590 U CN 215521590U CN 202121745901 U CN202121745901 U CN 202121745901U CN 215521590 U CN215521590 U CN 215521590U
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- tip
- small end
- positioning shaft
- heat
- driving wheel
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Abstract
The utility model discloses a heat-insulation anti-deformation ceramic positioning shaft which comprises a positioning shaft main body, wherein the positioning shaft comprises a middle part, a first small end and a second small end, the diameter of the positioning shaft main body is uniformly reduced from the middle part to the first small end and the second small end, the diameter of the first small end is larger than that of the second small end, a ceramic material layer is arranged on the outer surface of the middle part, heat-insulation rings are arranged on two sides of the ceramic material layer, an external thread part and an internal thread part are respectively arranged on the first small end and the second small end, and a key groove is arranged between the first small end and the middle part; the utility model has the advantages that: has ceramic anti-corrosion layer to prevent overheat deformation.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a heat-insulating anti-deformation ceramic positioning shaft.
Background
The shaft is a cylindrical object penetrating through the middle of a bearing or the middle of a wheel or the middle of a gear, is a mechanical part for supporting a rotating part and rotating together with the rotating part to transfer motion, torque or bending moment, is generally in a metal round rod shape, each section can have different diameters, and the part which does rotary motion in the machine is arranged on the shaft; in the existing processing, as the shafts are mostly made of metal materials and the surfaces of the shafts are easy to corrode, ceramic shafts are applied to the processing in the market and are formed by static pressure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the limitations and provide a heat-insulating deformation-preventing ceramic positioning shaft which is provided with a ceramic anti-corrosion layer and prevents overheating deformation.
The purpose of the utility model is realized by the following technical scheme: the utility model provides a thermal-insulated shape pottery location axle of preapring for an unfavorable turn of events, includes location axle main part, the location axle includes the intermediate part, first tip and second tip, location axle main part diameter is evenly reduced to first tip and second tip by the intermediate part, the diameter of first tip is greater than the second tip, the intermediate part surface is equipped with the ceramic material layer, the ceramic material layer both sides are equipped with thermal-insulated circle, first tip and second tip are equipped with external screw thread portion and internal thread portion respectively, be equipped with the keyway between first tip and the intermediate part.
Preferably, the second small end is connected with a driving wheel through an internal thread portion, the driving wheel is provided with a center shaft, the center shaft is of a hollow structure, a circular groove is formed in the surface of the driving wheel, a plurality of oval through holes are uniformly distributed in the circular groove, one half of the oval through holes are arranged in the circular groove, a circular through hole is formed between every two adjacent oval through holes, and a protrusion is arranged on the surface of the driving wheel outside the center shaft.
Preferably, the first small end is connected with a sleeve, the edge of the sleeve is provided with a plurality of rotary connecting pieces, and the rotary connecting pieces are connected with buckles.
Preferably, the periphery of the transmission wheel is provided with a working groove, and the inner surface of the working groove is provided with an anti-corrosion layer.
Preferably, the sleeve surface is provided with a plurality of fixing grooves.
In summary, the utility model has the following advantages: because the ceramic material is almost not afraid of corrosion, the ceramic material shaft is suitable for operation under the severe condition that corrosive media are fully distributed; because the density of the ceramic material is lower than that of steel and the weight is much lighter, the centrifugal effect is reduced during rotation, and the service life is greatly prolonged; the ceramic material is less affected by thermal expansion and cold contraction than steel, so that the shaft can be allowed to work in an environment with severe temperature difference change when the gap of the shaft is fixed; the elastic modulus of the ceramic is higher than that of steel, so that the ceramic is not easy to deform under stress, the working speed is favorably improved, and higher precision is achieved; the performance and the price ratio of the ceramic material shaft are far better than those of a full steel shaft, so that a large amount of shutdown maintenance time can be saved, the rejection rate is reduced, and spare parts of the stored shaft are reduced; the mode buckle of key-type connection can make axle monolithic stationary, improves work efficiency.
Drawings
FIG. 1 is a block diagram of a positioning shaft body according to the present invention;
FIG. 2 is a structural view of a driving wheel portion of the present invention;
FIG. 3 is a block diagram of the sleeve portion of the present invention;
reference numbers in the figures: 1-middle part, 2-first small end, 3-second small end, 4-ceramic material layer, 5-heat insulation ring, 6-external thread part, 7-internal thread part, 8-key groove, 9-driving wheel, 10-middle shaft, 11-circular groove, 12-elliptical through hole, 13-circular through hole, 14-protrusion, 15-sleeve, 16-rotary connecting piece, 17-buckle, 18-working groove and 19-fixing groove.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in figure 1, the utility model provides a heat-insulating deformation-preventing ceramic positioning shaft, which comprises a positioning shaft main body, wherein the positioning shaft main body comprises a middle part 1, a first small end 2 and a second small end 3, the diameter of the positioning shaft main body is uniformly reduced from the middle part 1 to the first small end 2 and the second small end 3, the diameter of the first small end 2 is larger than that of the second small end 3, the length of the first small end 2 is also larger than that of the second small end 3, the outer surface of the middle part 1 is provided with a ceramic material layer 4 which can improve the corrosion resistance of the positioning shaft, heat-insulating rings 5 are arranged on two sides of the ceramic material layer 4 which can effectively protect the ceramic material layer 4 from being damaged in work and can simultaneously cut off the heat transfer of a metal shaft so as to prevent the damage of the internal structure and performance caused by the nonuniform heat of the metal shaft, the first small end 2 and the second small end 3 are respectively provided with an external thread part 6 and an internal thread part 7 which are used for connecting other different parts, a key groove 8 is arranged between the first small end 2 and the middle part 1, and is used for forming key connection with other components and clamping and positioning the components.
As shown in fig. 2, the second small end 3 is connected with a middle shaft 10 of the driving wheel 9 through the internal thread portion 7, the middle shaft 10 is a hollow structure and can be connected with the internal thread portion 7, a circular groove 11 is formed in the surface of the driving wheel 9, a plurality of oval through holes 12 are uniformly distributed in the circular groove 11, one half of the oval through holes 12 are arranged in the circular groove 11, a circular through hole 13 is formed between two adjacent oval through holes 12, the oval through holes 12 and the circular through holes 13 can reduce the weight of the driving wheel 9, meanwhile, other components can be matched, and a protrusion 14 is formed in the surface of the driving wheel 9 outside the middle shaft 10.
As shown in fig. 3, the first small end 2 is connected with a sleeve 15, the edge of the sleeve 15 is provided with a plurality of rotary connectors 16, the rotary connectors 16 are connected with buckles 17, the sleeve 15 can be inserted into a required component, the sleeve 15 extends out from one end of the component, and the buckles 17 are opened after the rotary connectors 16 are rotated, so that the buckles 17 are connected with the component to position the shaft.
The periphery of the driving wheel 9 is provided with a working groove 18 for the transmission belt or the steel wire rope to pass through, and the inner surface of the working groove 18 is provided with an anti-corrosion layer for preventing oil stains on the steel wire rope and acid and alkaline substances from polluting the driving wheel 9.
The sleeve 15 is provided with a plurality of fixing grooves 19 on the surface, and can be connected with other required connecting pieces through a plurality of fixing grooves 19 in a key mode.
Claims (5)
1. The utility model provides a thermal-insulated shape ceramic positioning axle of preapring for an unfavorable turn of events which characterized in that: including the location axle main part, the location axle main part includes intermediate part (1), first tip (2) and second tip (3), location axle main part diameter is evenly reduced to first tip (2) and second tip (3) by intermediate part (1), the diameter of first tip (2) is greater than second tip (3), intermediate part (1) surface is equipped with ceramic material layer (4), ceramic material layer (4) both sides are equipped with thermal-insulated circle (5), first tip (2) and second tip (3) are equipped with external screw thread portion (6) and internal thread portion (7) respectively, be equipped with keyway (8) between first tip (2) and intermediate part (1).
2. The heat-insulating and deformation-preventing ceramic positioning shaft as claimed in claim 1, wherein: the second small end (3) is connected with a driving wheel (9) through an internal thread portion (7), the driving wheel (9) is provided with a center shaft (10), the center shaft (10) is of a hollow structure, a circular groove (11) is formed in the surface of the driving wheel (9), a plurality of oval through holes (12) are uniformly distributed in the circular groove (11), one half of the oval through holes (12) are arranged in the circular groove (11), a circular through hole (13) is formed between every two adjacent oval through holes (12), and a protrusion (14) is arranged on the surface of the driving wheel (9) outside the center shaft (10).
3. The heat-insulating and deformation-preventing ceramic positioning shaft as claimed in claim 1, wherein: first tip (2) are connected with sleeve (15), sleeve (15) edge is equipped with a plurality of swivel connected coupler (16), be connected with buckle (17) on swivel connected coupler (16).
4. The heat-insulating and deformation-preventing ceramic positioning shaft as claimed in claim 2, wherein: the periphery of the transmission wheel (9) is provided with a working groove (18), and the inner surface of the working groove (18) is provided with an anti-corrosion layer.
5. The heat-insulating and deformation-preventing ceramic positioning shaft according to claim 3, characterized in that: the surface of the sleeve (15) is provided with a plurality of fixing grooves (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745901.5U CN215521590U (en) | 2021-07-29 | 2021-07-29 | Thermal-insulated shape ceramic positioning axle of preapring for an unfavorable turn of events |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745901.5U CN215521590U (en) | 2021-07-29 | 2021-07-29 | Thermal-insulated shape ceramic positioning axle of preapring for an unfavorable turn of events |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215521590U true CN215521590U (en) | 2022-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121745901.5U Active CN215521590U (en) | 2021-07-29 | 2021-07-29 | Thermal-insulated shape ceramic positioning axle of preapring for an unfavorable turn of events |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215521590U (en) |
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2021
- 2021-07-29 CN CN202121745901.5U patent/CN215521590U/en active Active
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