CN110893602A - Dismounting device and dismounting structure of compressed air impeller - Google Patents
Dismounting device and dismounting structure of compressed air impeller Download PDFInfo
- Publication number
- CN110893602A CN110893602A CN201911297887.4A CN201911297887A CN110893602A CN 110893602 A CN110893602 A CN 110893602A CN 201911297887 A CN201911297887 A CN 201911297887A CN 110893602 A CN110893602 A CN 110893602A
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- CN
- China
- Prior art keywords
- impeller
- lifting appliance
- connecting axle
- limiting
- positioning
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a dismounting device and a dismounting structure of a compressed air impeller, which have the advantages of labor saving, convenience and easy operation. The dismounting device comprises a connecting shaft and a hoisting tool, wherein the axial end of the connecting shaft is an impeller positioning portion, the axial other end of the connecting shaft is a lifting appliance positioning portion, a connecting flange is arranged at the middle of the connecting shaft, an impeller limiting step is formed between the connecting flange and the impeller positioning portion, a lifting appliance limiting step is formed between the lifting appliance positioning portion and the middle of the connecting shaft, a plurality of impeller fastening screws are arranged on the connecting flange along the circumferential direction, a positioning block is arranged at the lower end of the hoisting tool, the positioning block is sleeved on the lifting appliance positioning portion in a clearance fit mode to form rotatable connection, and the lifting appliance positioning portion is provided with. The disassembly and assembly structure comprises a disassembly and assembly device and an air compression impeller, wherein the end part of the air compression impeller is provided with a positioning hole and a plurality of threaded holes which are respectively matched with the impeller positioning part and the impeller fastening screw.
Description
Technical Field
The invention relates to the technical field of turbochargers, in particular to a dismounting device and a dismounting structure of a compressed air impeller.
Background
The turbocharger is a matching part of a typical diesel engine, and can work together with the diesel engine, so that the output power of the diesel engine can be effectively improved.
When the turbocharger carries out dismounting work on a ship, only one or two persons can be allowed to carry out dismounting work due to small operable space on the ship, and the dismounting tool is designed with the labor saving, convenience, operability and practicability of the dismounting tool fully taken into consideration.
In the scheme of dismouting turbo charger before, dismouting impeller mainly relies on the both hands of assembler to carry out the manual work to impeller and align the turbine shaft and rotatory impeller, reaches the purpose of dismouting impeller. When the heavy compressor impeller is disassembled and assembled, the disassembling and assembling mode has the following problems:
a. the air compressing impeller falls off, the air compressing impeller is a high-precision and easily-damaged part, and the falling of the air compressing impeller can damage the structure of the air compressing impeller so that the air compressing impeller cannot be used;
b. in the process of matching and assembling the compressed air impeller and the turbine shaft by threads, the compressed air impeller and the turbine shaft are not easy to align, the threads are installed in a staggered mode, the threads of the compressed air impeller are easy to damage, and the structure of the compressed air impeller is damaged.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a dismounting device and a dismounting structure of a compressed air impeller, which have the advantages of labor saving, convenience and easy operation.
The purpose of the invention is realized as follows:
the utility model provides a dismouting device of impeller of calming anger, includes connecting axle, lifting device, the axial one end of connecting axle is impeller location portion, the axial other end of connecting axle is hoist location portion, and the middle part of connecting axle is equipped with flange, form the spacing step of impeller between flange, the impeller location portion, form the spacing step of hoist between the middle part of hoist location portion and connecting axle, flange is last to be equipped with a plurality of impeller fastening screws along circumference, lifting device's lower extreme is equipped with the locating piece, the locating piece cover is clearance fit in hoist location portion, forms rotatable coupling, hoist location portion is equipped with limit structure and is spacing to the locating piece.
Preferably, the limiting structure comprises a lifting appliance limiting bolt axially arranged on the lifting appliance positioning portion, a limiting washer is arranged between a nut of the lifting appliance limiting bolt and the lifting appliance positioning portion, an installation space of the positioning block is formed between the limiting washer and a lifting appliance limiting step, and the axial length of the installation space is greater than the width of the positioning block.
Preferably, the impeller fastening screw is a hexagon socket head cap screw, and the hanger limiting screw is a hexagon head bolt.
Preferably, the hoisting tool is in the shape of ┍, the positioning block is fixed at the lower end of the vertical rod of the hoisting tool, and the end part of the transverse rod of the hoisting tool is provided with a shackle.
The utility model provides a dismouting structure of impeller of calming anger, includes the dismouting device of impeller of calming anger, the tip of impeller of calming anger is equipped with locating hole and a plurality of screw hole, and the impeller location portion of connecting axle inserts in the locating hole of impeller of calming anger, forms radial positioning, and each impeller fastening screw on the flange cooperates with the screw hole on the impeller of calming anger respectively, makes the connecting axle, impeller fixed connection of calming anger, the shackle is located directly over the impeller of calming anger.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
a. the device has the characteristics of labor saving, convenience, operability, practicability and the like;
b. compared with the conventional manual operation, the required operation space is reduced, and the disassembly and assembly operation of the air compressing impeller can be completed even if the manual operation is carried out by one person;
c. the air compressing impeller is hoisted by adopting a rotatable structure, so that the assembly and the disassembly of the air compressing impeller and the turbine shaft are facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a connecting shaft;
FIG. 3 is a left side view of FIG. 2;
fig. 4 is a right-side schematic view of fig. 2.
Reference numerals
In the attached drawing, 1-compressed air impeller, 2-impeller fastening screw, 3-connecting flange, 4-hanger limiting bolt, 5-limiting washer, 6-hoisting tool, 7-shackle, 8-connecting shaft and 9-positioning block.
Detailed Description
Referring to fig. 1-4, the disassembly and assembly device for the compressed air impeller comprises a connecting shaft and a hoisting tool, wherein one axial end (a large cylindrical end) of the connecting shaft is an impeller positioning portion, the other axial end (a small cylindrical end) of the connecting shaft is a hanger positioning portion, a connecting flange is arranged in the middle of the connecting shaft, an impeller limiting step is formed between the connecting flange and the impeller positioning portion, a hanger limiting step is formed between the hanger positioning portion and the middle of the connecting shaft, a plurality of impeller fastening screws are arranged on the connecting flange along the circumferential direction and are hexagon socket head cap screws, a positioning block is arranged at the lower end of the hoisting tool, the positioning block is sleeved on the hanger positioning portion in a clearance fit mode to form a rotatable connection, and the hanger positioning portion is provided with a limiting structure to limit.
The limiting structure comprises a lifting appliance limiting bolt arranged on the lifting appliance positioning portion along the axial direction, a limiting washer is arranged between a nut of the lifting appliance limiting bolt and the lifting appliance positioning portion, an installation space of a positioning block is formed between the limiting washer and a lifting appliance limiting step, and the axial length of the installation space is greater than the width of the positioning block. The hoisting tool can axially move on the connecting flange within a small range, so that the clamping is prevented, and the radial rotation of the compressed air impeller in the hoisting process can be ensured. The purpose that the compressed air impeller can rotate radially while being hoisted is achieved. The lifting appliance limiting screw is a hexagon head bolt. The lifting device is '┍' in shape, the locating block is fixed at the lower end of the vertical rod of the lifting device, and the end part of the transverse rod of the lifting device is provided with a shackle.
The utility model provides a dismouting structure of impeller of calming anger, includes the dismouting device of impeller of calming anger, the tip of impeller of calming anger is equipped with locating hole and a plurality of screw hole, and the impeller location portion of connecting axle inserts in the locating hole of impeller of calming anger, forms radial positioning, and each impeller fastening screw on the flange cooperates with the screw hole on the impeller of calming anger respectively, makes the connecting axle, impeller fixed connection of calming anger, the shackle is located directly over the impeller of calming anger.
The installation method comprises the following steps:
1) the large cylindrical end of the connecting shaft 8 is arranged on the air compressing impeller 1 through the connecting flange 3, the air compressing impeller fastening screw 2 penetrates through the connecting flange hole to be connected and fastened with the air compressing impeller screw hole, and the connecting flange 3 is fixed on the air compressing impeller.
2) Installing a hoisting tool 6 on the small cylindrical end of the connecting shaft;
3) install hoist limit bolt 4 and limit washer 5 on the connecting axle, screw up hoist limit bolt 4, hoist tool 6 has less axial displacement distance on flange this moment, and hoist tool can radially rotate simultaneously.
4) The air compressing impeller is fixed by the aid of the dismounting structure of the air compressing impeller, the impeller is lifted to the turbine shaft by the aid of the lifting tool, and the air compressing impeller is mounted on the turbine shaft by rotating the air compressing impeller.
The disassembling method comprises the following steps:
1) after the impeller is connected according to the disassembly and assembly structure of the air compression impeller, the turbine shaft is fixed, the air compression impeller is disassembled by rotating the air compression impeller, and then the impeller is hoisted and transported away by the hoisting tool.
2) Screwing the hanger limiting bolt 4, and detaching the hanger limiting bolt 4 and the limiting washer 5;
3) taking out the hoisting tool 6;
4) and screwing and taking out the compressed air impeller fastening screw 2, taking out the connecting shaft, and finishing the disassembly of the compressed air impeller.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a dismouting device of impeller that calms air which characterized in that: including connecting axle, lifting device, the axial one end of connecting axle is impeller location portion, the axial other end of connecting axle is hoist location portion, and the middle part of connecting axle is equipped with flange, form the spacing step of impeller between flange, the impeller location portion, form the spacing step of hoist between the middle part of hoist location portion and connecting axle, flange is last to be equipped with a plurality of impeller fastening screws along circumference, lifting device's lower extreme is equipped with the locating piece, the locating piece cover is clearance fit in hoist location portion, forms rotatable coupling, hoist location portion is equipped with limit structure and is spacing to the locating piece.
2. The assembly and disassembly device of a puffer wheel of claim 1, wherein: the limiting structure comprises a lifting appliance limiting bolt arranged on the lifting appliance positioning portion along the axial direction, a limiting washer is arranged between a nut of the lifting appliance limiting bolt and the lifting appliance positioning portion, an installation space of a positioning block is formed between the limiting washer and a lifting appliance limiting step, and the axial length of the installation space is greater than the width of the positioning block.
3. The assembly and disassembly device of a puffer wheel of claim 2, wherein: the impeller fastening screw is a hexagon socket head cap screw, and the lifting appliance limiting screw is a hexagon head bolt.
4. The assembly and disassembly device of a puffer wheel of claim 1, wherein: the lifting device is '┍' in shape, the locating block is fixed at the lower end of the vertical rod of the lifting device, and the end part of the transverse rod of the lifting device is provided with a shackle.
5. The utility model provides a dismouting structure of impeller that calms air which characterized in that: including the dismouting device of impeller of calming anger, the tip of impeller of calming anger is equipped with locating hole and a plurality of screw hole, and the impeller location portion of connecting axle inserts in the locating hole of impeller of calming anger, forms radial positioning, and each impeller fastening screw on the flange cooperates with the screw hole on the impeller of calming anger respectively, makes the connecting axle, impeller fixed connection of calming anger, the shackle is located the impeller of calming anger directly over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297887.4A CN110893602A (en) | 2019-12-17 | 2019-12-17 | Dismounting device and dismounting structure of compressed air impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297887.4A CN110893602A (en) | 2019-12-17 | 2019-12-17 | Dismounting device and dismounting structure of compressed air impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110893602A true CN110893602A (en) | 2020-03-20 |
Family
ID=69789038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911297887.4A Pending CN110893602A (en) | 2019-12-17 | 2019-12-17 | Dismounting device and dismounting structure of compressed air impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110893602A (en) |
-
2019
- 2019-12-17 CN CN201911297887.4A patent/CN110893602A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Peng Zhengjun Inventor after: Liu Yang Inventor after: He Fenglin Inventor after: Zhou Li Inventor after: Chen Shifan Inventor after: Shen Hua Inventor after: Wang Zhengchuan Inventor after: He Xiaojun Inventor before: Peng Zhengjun Inventor before: Liu Yang Inventor before: He Fenglin Inventor before: Zhou Li Inventor before: Chen Shifan Inventor before: Shen Hua Inventor before: Wang Zhengchuan Inventor before: He Xiaojun |