CN212123116U - Special tool for disassembling mechanical seal shaft sleeve - Google Patents
Special tool for disassembling mechanical seal shaft sleeve Download PDFInfo
- Publication number
- CN212123116U CN212123116U CN202020394762.5U CN202020394762U CN212123116U CN 212123116 U CN212123116 U CN 212123116U CN 202020394762 U CN202020394762 U CN 202020394762U CN 212123116 U CN212123116 U CN 212123116U
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- pull rod
- chassis
- mechanical seal
- threaded pull
- shaft sleeve
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Abstract
The utility model discloses a special tool for disassembling a mechanical seal shaft sleeve, which comprises a chassis, an adjustable chuck, a threaded pull rod, a cross beam and a pressing nut; the middle part of the chassis is provided with a hollow structure, the adjustable chuck is composed of a group of symmetrical semi-open chucks, the semi-open chucks can be combined into a hollow disc-shaped structure, and the middle part of the semi-open chucks is provided with an annular clamping mouth; the adjustable chuck can be fixed on the chassis through a connecting piece; the bottom of the threaded pull rod is connected with the chassis and the adjustable chuck, and the top of the threaded pull rod penetrates through the cross beam and is connected with the pressing nut; the cross beam is provided with a threaded pull rod through hole; the pressing nut is sleeved on the threaded pull rod and abuts against the cross beam. The utility model can safely and conveniently realize the separation of the mechanical seal shaft sleeve and the shaft, and eliminate the potential safety hazard generated by the modes of on-site live fire hot discharge or destructive strong disassembly by using an inappropriate tool; the maintenance operation safety factor is promoted, the maintenance period is shortened, and the maintenance quality is guaranteed.
Description
Technical Field
The utility model belongs to a chemical machinery overhauls the field, relates to a rotating equipment's maintenance instrument, concretely relates to rotary fluid machinery is changing mechanical seal when overhauing the operation for the specialized tool that mechanical seal axle sleeve was dismantled.
Background
A mechanical seal is a device used to solve the problem of sealing between a rotating shaft and a machine body. The device is a device which is used for preventing fluid from leaking and is formed by the combined action of at least one pair of fluid pressure vertical to the end face of a rotating axis and the elastic force (or magnetic force) of a compensation mechanism, and the fluid pressure and the elastic force (or magnetic force) are kept in fit and relatively slide under the matching of auxiliary sealing, and is commonly used for shaft end sealing of rotating fluid machines such as pumps, compressors, reaction stirring kettles and the like. Therefore, the mechanical seal is a universal shaft seal device in the petrochemical industry.
The shaft sleeve is a part of a mechanical sealing structure and mainly used for protecting the main shaft from being abraded and corroded, and the mechanical seal is arranged on the main shaft of the equipment through the shaft sleeve. Usually, the position of a shaft sleeve is fixed, the shaft sleeve and the shaft are fixedly arranged on the shaft through a key connection or a set screw, and a sealing O-shaped ring is arranged between the shaft sleeve and the shaft, so that a static sealing point is formed, and the condition that a conveying medium does not leak from a fit gap between the shaft and the shaft sleeve is ensured.
The mechanical seal is often leaked due to failure or service life reaching in the use process, so that the replacement of the mechanical seal is a common and important content in the troubleshooting of the mobile equipment. Mechanical seal passes through the axle sleeve and installs epaxial, adopts little clearance fit usually between axle sleeve and the axle, and after equipment operation certain period, the clearance between axle sleeve and the axle often causes the card stifled because of medium, the long-term gathering of impurity, or makes axle and axle sleeve cohere together because of producing the corrosion, when leading to changing mechanical seal, axle and axle sleeve take place to block up. Usually, the shaft sleeve and the shaft are separated by means of dynamic fire thermal discharge or shaft sleeve damage, which causes great difficulty in equipment maintenance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, can be quick, safe convenient mechanical seal axle sleeve dismantles specialized tool with the mechanical seal axle sleeve of the separation of axle.
In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a mechanical seal axle sleeve dismantles specialized tool, includes:
the middle part of the chassis is provided with a hollow structure;
the adjustable chuck is composed of a group of symmetrical semi-open chucks, the semi-open chucks can be combined into a hollow disc-shaped structure, and the middle part of the semi-open chucks is provided with an annular clamping mouth; the adjustable chuck can be fixed on the chassis through a connecting piece;
the bottom of the threaded pull rod is connected with the chassis, and the top of the threaded pull rod penetrates through the cross beam and is connected with the pressing nut;
the cross beam is provided with a threaded pull rod through hole;
pressing the nut; and the pressing nut is sleeved on the threaded pull rod and abuts against the cross beam.
Preferably, a threaded pull rod through hole is formed in the chassis, an internal thread is formed in the threaded pull rod through hole, and the threaded pull rod is in threaded connection with the chassis.
Preferably, a plurality of strip-shaped bolt holes are formed in the adjustable chuck and are arranged along the annular direction of the adjustable chuck.
Preferably, a plurality of bolt holes are formed in the base plate, the bolt holes in the base plate are matched with the strip-shaped bolt holes in the adjustable chuck in position, and the adjustable chuck can be fixed on the base plate through fastening bolts.
Preferably, the connecting member is a fastening bolt.
Preferably, the thickness of the annular clamping mouth is matched with the width of the annular groove in the shaft sleeve, and the two half-and-half split chucks can be adjusted according to the diameter size of the shaft sleeve, so that the annular clamping mouths of the two half-and-half split chucks are clamped in the annular groove in the shaft sleeve.
Preferably, the bottom of the threaded pull rod is provided with a pull rod locking nut, and the threaded pull rod is ensured to be tightly connected with the chassis under the action of the pull rod locking nut by utilizing a double-nut anti-loosening mechanical principle.
The utility model discloses specialized tool is dismantled to mechanical seal axle sleeve has following beneficial effect:
1. the mechanical seal shaft sleeve and the shaft are safely and conveniently separated, and potential safety hazards caused by the modes of field dynamic fire hot discharge or destructive strong removal by using an inappropriate tool and the like are eliminated;
2. the safety coefficient of maintenance operation is improved, the maintenance period is shortened, and the maintenance quality is ensured;
3. the special tool is simple in structure, the adjustable chuck is adopted in design, the mounting size can be adjusted at will to meet the size requirements of main shaft journals of different equipment, the application range of the journals is wide, the special tool has strong practical use significance, and the special tool has popularization value in the industry.
Drawings
FIG. 1 is a schematic structural view of the special tool for detaching a mechanical seal shaft sleeve of the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic diagram of the adjustable chuck of FIG. 1;
in the figure: 1. a chassis; 2. an adjustable chuck; 2A, a semi-open chuck; 2B, a semi-open chuck; 2C, annular clamping mouths; 3. a cross beam; 4. pressing the nut; 5. a threaded pull rod; 6. fastening a bolt; 7. a draw bar lock nut; 8. a strip bolt hole.
Detailed Description
In order to explain technical contents and structural features of the special tool for detaching a mechanical seal shaft sleeve of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
As shown in fig. 1, 2 and 3, the utility model discloses specialized tool is dismantled to mechanical seal axle sleeve, including chassis 1, adjustable chuck 2, screw pull rod 5, crossbeam 3, gland nut 4, fastening bolt 6 and pull rod lock nut 7.
The middle of the chassis 1 is provided with a hollow structure, the chassis 1 is provided with a threaded pull rod through hole, the threaded pull rod through hole is provided with an internal thread, and the threaded pull rod 5 extends into the threaded pull rod through hole to be connected with the chassis 1 through the thread.
The adjustable chuck 2 is composed of a group of symmetrical semi-open chucks 2A and 2B, the semi-open chucks 2A and 2B can be combined into a hollow disc-shaped structure, and the middle part of the semi-open chuck 2A is provided with an annular clamping mouth 2C; the thickness of annular card mouth 2C matches with the width of the annular groove on the axle sleeve, and two half-and-half open chucks can be adjusted according to the diameter size of the axle sleeve, so that the annular card mouths of the two half-and-half open chucks are clamped into the annular groove on the axle sleeve. The adjustable chuck 2 can be fixed on the chassis 1 through a fastening bolt 6;
the bottom of the threaded pull rod 5 penetrates into the chassis 1 and is in threaded connection with the chassis, and the top of the threaded pull rod 5 penetrates through the cross beam 3 and is connected with the pressing nut 4; and the pressing nut 4 is sleeved on the threaded pull rod 5 and is propped against the cross beam 3.
The cross beam 3 is provided with a threaded pull rod through hole.
Set up a plurality of bar shape bolt hole 8 on adjustable chuck 2, bar shape bolt hole 8 sets up along adjustable chuck hoop. A plurality of bolt holes are formed in the chassis 1, and the bolt holes in the chassis are matched with 8 positions of strip-shaped bolt holes in the adjustable chuck. The strip-shaped bolt holes 8 ensure that the adjustable chuck can be fixed on the chassis through the fastening bolts 6 as usual when the position of the adjustable chuck is adjusted.
The bottom of the threaded pull rod 5 is provided with a pull rod locking nut 7, the pull rod locking nut 7 is sleeved on the threaded pull rod 5, and the threaded pull rod 5 is ensured to be tightly connected with the chassis 1 under the action of the pull rod locking nut 7.
The utility model discloses mechanical seal axle sleeve dismantles specialized tool's application method is: firstly, a chassis 1 is sleeved on a main shaft of equipment, an adjustable chuck 2 is adjusted to a proper size according to the actual size of a mechanical seal shaft sleeve to be disassembled, then an annular clamping mouth 2C is clamped into a position, corresponding to an annular clamping groove, of the mechanical seal shaft sleeve, the adjustable chuck 2 is fixed on the chassis 1 through a fastening bolt 6, one end of a threaded pull rod 5 is installed in two corresponding threaded holes of the chassis, and the threaded pull rod 5 is locked through a pull rod locking nut 7 to prevent rotation. Then the beam 3 is sleeved into the other end of the threaded pull rod and is attached to the end part of the main shaft head of the equipment, the end part serves as a supporting point, and finally the pressing nut 4 is installed on the threaded pull rod to finish the assembly of the special tool. In the use process, the pressing nut 4 is screwed, the acting force of the pressing nut 4 is applied to the cross beam 3, the torque applied to the pressing nut 4 is converted into the tensile stress applied to the adjustable chuck by the threaded pull rod 5, and the adjustable chuck is connected with the mechanical seal shaft sleeve, so that the mechanical seal shaft sleeve can be smoothly pulled out.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the present invention is not limited by the appended claims.
Claims (7)
1. The utility model provides a specialized tool is dismantled to mechanical seal axle sleeve which characterized in that includes:
the middle part of the chassis is provided with a hollow structure;
the adjustable chuck is composed of a group of symmetrical semi-open chucks, the semi-open chucks can be combined into a hollow disc-shaped structure, and the middle part of the semi-open chucks is provided with an annular clamping mouth; the adjustable chuck can be fixed on the chassis through a connecting piece;
the bottom of the threaded pull rod is connected with the chassis, and the top of the threaded pull rod penetrates through the cross beam and is connected with the pressing nut;
the cross beam is provided with a threaded pull rod through hole;
pressing the nut; and the pressing nut is sleeved on the threaded pull rod and abuts against the cross beam.
2. The special tool for disassembling the mechanical seal shaft sleeve as claimed in claim 1, wherein: the chassis is provided with a threaded pull rod through hole.
3. The special tool for disassembling the mechanical seal shaft sleeve as claimed in claim 1, wherein: a plurality of strip-shaped bolt holes are formed in the adjustable chuck.
4. The special tool for disassembling the mechanical seal shaft sleeve as claimed in claim 1, wherein: the chassis is provided with a plurality of bolt holes.
5. The special tool for disassembling the mechanical seal shaft sleeve as claimed in claim 1, wherein: the connecting piece is a fastening bolt.
6. The special tool for disassembling the mechanical seal shaft sleeve as claimed in claim 1, wherein: the thickness of the annular clamping mouth is matched with the width of the annular groove on the shaft sleeve.
7. The special tool for disassembling the mechanical seal shaft sleeve as claimed in claim 1, wherein: and a pull rod locking nut is arranged at the bottom of the threaded pull rod, and is sleeved on the threaded pull rod and propped against the chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020394762.5U CN212123116U (en) | 2020-03-25 | 2020-03-25 | Special tool for disassembling mechanical seal shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020394762.5U CN212123116U (en) | 2020-03-25 | 2020-03-25 | Special tool for disassembling mechanical seal shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212123116U true CN212123116U (en) | 2020-12-11 |
Family
ID=73671313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020394762.5U Active CN212123116U (en) | 2020-03-25 | 2020-03-25 | Special tool for disassembling mechanical seal shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212123116U (en) |
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2020
- 2020-03-25 CN CN202020394762.5U patent/CN212123116U/en active Active
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