CN112922954B - Special alloy pre-reactor plate spring transmission shaft structure - Google Patents
Special alloy pre-reactor plate spring transmission shaft structure Download PDFInfo
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- CN112922954B CN112922954B CN202110148495.2A CN202110148495A CN112922954B CN 112922954 B CN112922954 B CN 112922954B CN 202110148495 A CN202110148495 A CN 202110148495A CN 112922954 B CN112922954 B CN 112922954B
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- Prior art keywords
- transmission shaft
- oil
- spring seat
- spring
- adjusting nut
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Springs (AREA)
Abstract
The invention discloses a plate spring transmission shaft structure of a special alloy pre-reactor, which comprises a transmission shaft, wherein the transmission shaft is provided with a shaft shoulder, a threaded retaining ring is in threaded connection with an adjusting nut, a spring seat is arranged below the adjusting nut, the spring seat is buckled with the adjusting nut, a disc spring group is arranged between the threaded retaining ring and the spring seat, and the disc spring group is abutted against the threaded retaining ring and the spring seat; the base seat is also abutted against the spring seat and is connected with an oil cylinder with an oil filling hole, an oil piston is arranged in the oil cylinder, and the oil piston is abutted against the spring seat; the foundation base is abutted to the sectional type shaft sleeves, the sealing rings are arranged between the sectional type shaft sleeves, the transmission shaft is provided with a thread section, and the sealing rings are arranged between the locking nut and the sectional type shaft sleeves, so that the invention has the advantages that: the convenience of change has been guaranteed to the segmental axle sleeve, and the leakproofness that can continuously be the axle sleeve provides the guarantee through warping after the dish spring group pressurized, prolongs the working property of transmission shaft, and the size of adjusting the deflection and then changing the size of effort between the segmental axle sleeve through the dish spring group.
Description
Technical Field
The invention relates to the field of fluorine chemical industry, in particular to a sealed transmission structure of a pre-reactor.
Background
The transmission shaft is a core part of the pre-reactor, and is driven by the motor to rotate coaxially and reciprocate axially with the upper paddle to stir, mix and transmit materials to the tail end.
The reaction section of the pre-reactor is formed by reaction of strong acid and materials, and the corrosion degree is large, so that a shaft contacting with a corrosion medium is made of nickel-based alloy. The shaft diameter of the pre-reactor is generally more than 200mm due to the requirements of production indexes and transmission torque, the length of the pre-reactor is related to the material conveying position and the reaction time and is generally more than 5 meters, and generally, in consideration of manufacturing and investment cost, a transmission shaft is internally made of carbon steel, and the outside of the transmission shaft is sleeved with a nickel-based shaft sleeve with spiral blades.
Due to the factors of different internal reaction degrees of media, randomness of material flow, different acidity degrees and the like, the corrosion degrees of different positions of the shaft sleeve are different. In order to facilitate replacement of the shaft sleeve and reduce maintenance cost and time, the shaft sleeve is made into a sectional type. Therefore, the sealing between the segmented bushings becomes an important link.
The shaft sleeve is generally provided with an O-shaped ring, and axial pretightening force is applied to seal. As the reaction temperature increases and the service life increases, the elasticity of the O-ring becomes gradually less and there is a possibility of leakage. The axial force must therefore be kept sufficiently high, while the force is adjusted over time as the O-ring seal is required.
Disclosure of Invention
In order to solve the problems, the invention discloses a plate spring transmission shaft structure of a special alloy pre-reactor.
The specific technical scheme is as follows:
a plate spring transmission shaft structure of a special alloy pre-reactor comprises a transmission shaft, wherein a shaft shoulder is arranged at the end part of the transmission shaft, the thread section of a thread retaining ring abutted against the shaft shoulder is in threaded connection with an adjusting nut, a spring seat is arranged on the inner side of the end part of the adjusting nut, a boss is arranged on the spring seat, the boss and the end part of the adjusting nut are complementary in shape and are buckled together, a disc spring group sleeved on the transmission shaft is arranged between the thread retaining ring and the spring seat, and two ends of the disc spring group are respectively abutted against the thread retaining ring and the spring seat; the base seat sleeved on the transmission shaft is also abutted against the other side of the spring seat, an oil cylinder with an oil filling hole is further arranged on the outer side of the base seat, an oil piston is arranged in the oil cylinder, an oil circuit of the oil filling hole is formed by a gap between the oil piston and the inner part of the oil cylinder, and the oil piston is also abutted against the spring seat; the foundation base is further abutted against the sectional type shaft sleeves, sealing rings are arranged between the sectional type shaft sleeves, a thread section is arranged at the tail end of the transmission shaft, and the sealing rings are arranged between a locking nut in threaded connection with the thread section of the transmission shaft and the sectional type shaft sleeves.
The cross section of the oil piston is arranged in a right angle.
The disc spring group is formed by oppositely placing disc spring sheets.
The length of the internal thread of the adjusting nut is larger than the length of the thread section of the thread baffle ring.
The working principle of the invention is as follows: the oil way is connected with the oil injection hole, and injects oil into the oil cylinder and pressurizes the oil; the compressed oil piston pushes the spring seat to move under the action of pressure so as to enable the disc spring group to be in a compressed state, and the position of the adjusting nut is not changed, so that a certain gap is generated between the spring seat and the adjusting nut, the adjusting nut is rotated at the moment and is screwed and retracted with the thread between the thread retaining rings, the adjusting nut is enabled to move until the gap between the adjusting nut and the spring seat is eliminated, after the oil pressure is removed, the locking nut at the right end of the shaft is simultaneously screwed, and the base seat and all shaft sleeves are enabled to move towards the compressed state; and repeating the steps until the deformation of the disc spring group meets the requirement, screwing the locking nut to lock, finally reversely rotating the left-end adjusting nut to enable the adjusting nut to move rightwards, generating displacement and leaving a gap between the adjusting nut and the boss of the spring seat, sealing between the shaft sleeves to form self-tightening sealing with axial load generated by the disc spring group, and providing the sealing requirement on the sectional shaft sleeve by the deformation resilience of the disc spring group when the sealing ring is poor in elasticity of a working environment.
The invention has the advantages that: adopt the convenience that the change has been guaranteed to the sectional type axle sleeve, reduce the cost of maintenance of axle sleeve simultaneously, accessible deformation can last provide the guarantee for the leakproofness of axle sleeve after the dish spring group pressurized, has prolonged the working property of transmission shaft to can adjust the size of deflection and then change the size of effort between the sectional type axle sleeve through the dish spring group.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a partially enlarged view of fig. 1 at a.
Detailed Description
The invention is specifically explained below with reference to the accompanying drawings, as shown in the drawings, a special alloy pre-reactor plate spring transmission shaft structure comprises a transmission shaft 7, wherein a shaft shoulder 71 is arranged at the end part of the transmission shaft, the thread section of a thread retaining ring 1 abutted against the shaft shoulder is in threaded connection with an adjusting nut 2, a spring seat 4 is arranged on the inner side of the end part of the adjusting nut, a boss 41 is arranged on the spring seat, the boss and the end part of the adjusting nut are complementary in shape and are buckled together, a disc spring group 3 sleeved on the transmission shaft is arranged between the thread retaining ring 1 and the spring seat 4, and two ends of the disc spring group are respectively abutted against the thread retaining ring and the spring seat; a base 8 sleeved on the transmission shaft is also abutted against the other side of the spring seat, an oil cylinder 6 with an oil filling hole 9 is also arranged on the outer side of the base, an oil piston 5 is arranged in the oil cylinder, an oil circuit of the oil filling hole is formed by the oil piston and an inner clearance of the oil cylinder, and the oil piston is also abutted against the spring seat; the foundation base is further abutted against the sectional type shaft sleeves 10, sealing rings 11 are arranged between the sectional type shaft sleeves, a threaded section 72 is arranged at the tail end of the transmission shaft, and the sealing rings 11 are arranged between a locking nut 12 in threaded connection with the threaded section of the transmission shaft and the sectional type shaft sleeves.
The section B of the oil piston is arranged in a right angle.
The disc spring group is formed by oppositely placing disc spring sheets.
The length of the internal thread of the adjusting nut is greater than that of the thread section of the thread baffle ring.
The working principle of the invention is as follows: the oil way is connected with the oil injection hole, and injects oil into the oil cylinder and pressurizes the oil; the oil piston after being pressed pushes the spring seat to move under the action of pressure so as to enable the disc spring group to be in a compressed state, and the position of the adjusting nut is not changed, so that a certain gap is generated between the spring seat and the right inside of the adjusting nut, the adjusting nut is rotated at the moment, the thread between the adjusting nut and the thread retaining ring is screwed and retracted, the adjusting nut is enabled to move until the gap between the adjusting nut and the spring seat is eliminated, after oil pressure is removed, the locking nut at the right end of the shaft is simultaneously screwed, and the base and all shaft sleeves are enabled to move towards the compressed state; and repeating the steps until the deformation of the disc spring group meets the requirement, screwing the locking nut to lock, finally reversely rotating the left end adjusting nut to move the adjusting nut rightwards, generating displacement and leaving a gap between the adjusting nut and the boss of the spring seat, forming self-tightening sealing of the axial load generated by the disc spring group by sealing between the shaft sleeves at the moment, and providing the sealing requirement of the sectional shaft sleeve by the deformation and resilience of the disc spring group when the sealing ring is degraded due to environmental elasticity of a working environment.
Claims (5)
1. The utility model provides a special alloy is reactor leaf spring transmission shaft structure in advance, includes the transmission shaft, its characterized in that: the end part of the transmission shaft is provided with a shaft shoulder, the thread section of a thread retaining ring abutted against the shaft shoulder is in threaded connection with an adjusting nut, the inner side of the end part of the adjusting nut is provided with a spring seat, the spring seat is provided with a boss, the boss and the end part of the adjusting nut are complementary in shape and are buckled together, a disc spring group sleeved on the transmission shaft is arranged between the thread retaining ring and the spring seat, and two ends of the disc spring group are respectively abutted against the thread retaining ring and the spring seat; the base seat sleeved on the transmission shaft is also abutted against the other side of the spring seat, an oil cylinder with an oil filling hole is further arranged on the outer side of the base seat, an oil piston is arranged in the oil cylinder, an oil circuit of the oil filling hole is formed by a gap between the oil piston and the inner part of the oil cylinder, and the oil piston is also abutted against the spring seat; the foundation base is further abutted against the sectional type shaft sleeves, sealing rings are arranged between the sectional type shaft sleeves, a thread section is arranged at the tail end of the transmission shaft, and the sealing rings are arranged between a locking nut in threaded connection with the thread section of the transmission shaft and the sectional type shaft sleeves.
2. The special alloy pre-reactor leaf spring drive shaft structure of claim 1, wherein: the section of the oil piston is arranged in a right angle.
3. The special alloy pre-reactor leaf spring drive shaft structure of claim 1, wherein: the disc spring group is formed by oppositely placing disc springs.
4. The special alloy pre-reactor leaf spring drive shaft structure of claim 1, wherein: the length of the internal thread of the adjusting nut is larger than the length of the thread section of the thread baffle ring.
5. The special alloy pre-reactor plate spring transmission shaft structure according to claim 1, wherein: the oil piston and the oil cylinder are arranged in a sealing state at other places except the oil path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148495.2A CN112922954B (en) | 2021-02-03 | 2021-02-03 | Special alloy pre-reactor plate spring transmission shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110148495.2A CN112922954B (en) | 2021-02-03 | 2021-02-03 | Special alloy pre-reactor plate spring transmission shaft structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112922954A CN112922954A (en) | 2021-06-08 |
| CN112922954B true CN112922954B (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110148495.2A Active CN112922954B (en) | 2021-02-03 | 2021-02-03 | Special alloy pre-reactor plate spring transmission shaft structure |
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| Country | Link |
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| CN (1) | CN112922954B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206386270U (en) * | 2016-09-14 | 2017-08-08 | 江阴爱尔姆真空设备有限公司 | A kind of vacuum pump full floating sealing structure |
| CN108620184A (en) * | 2018-04-23 | 2018-10-09 | 吴江市和信机械制造厂 | It is a kind of to realize the grinding device that segmentation crushes |
| CN109099049A (en) * | 2018-09-13 | 2018-12-28 | 安徽精科检测技术有限公司 | The long transmission shaft of rigidity |
-
2021
- 2021-02-03 CN CN202110148495.2A patent/CN112922954B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206386270U (en) * | 2016-09-14 | 2017-08-08 | 江阴爱尔姆真空设备有限公司 | A kind of vacuum pump full floating sealing structure |
| CN108620184A (en) * | 2018-04-23 | 2018-10-09 | 吴江市和信机械制造厂 | It is a kind of to realize the grinding device that segmentation crushes |
| CN109099049A (en) * | 2018-09-13 | 2018-12-28 | 安徽精科检测技术有限公司 | The long transmission shaft of rigidity |
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| Publication number | Publication date |
|---|---|
| CN112922954A (en) | 2021-06-08 |
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