CN113770710B - Lock nut dismounting device and method - Google Patents
Lock nut dismounting device and method Download PDFInfo
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- CN113770710B CN113770710B CN202111020476.8A CN202111020476A CN113770710B CN 113770710 B CN113770710 B CN 113770710B CN 202111020476 A CN202111020476 A CN 202111020476A CN 113770710 B CN113770710 B CN 113770710B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- 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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a locking nut dismounting device and a locking nut dismounting method in the technical field of locking nut dismounting, and the locking nut dismounting device comprises a positioning plate, wherein two ends of the positioning plate are detachably connected with the end part of a main shaft, and the middle part of the positioning plate is provided with a positioning column; the torque plate is provided with a prism matched with the screwing tool, and the prism is of a hollow structure and is sleeved outside the positioning column; the bearing column is arranged along the axial direction of the main shaft and is detachably connected with the locking nut; the end of the moment plate is abutted against the bearing column so that the circumferential acting force of the moment plate is applied to the bearing column. The invention can improve the disassembly and assembly speed of the locknut, further improve the operation efficiency, reduce the labor load of operators and has simple disassembly and assembly process.
Description
Technical Field
The invention relates to the technical field of lock nut dismounting, in particular to a lock nut dismounting device and a lock nut dismounting method.
Background
The radial forging machine is a large bar radial forging press, the manipulator mainly comprises a machine body, a main shaft, a turbine shaft, a rotation compensation system and other equipment, and a bearing of the manipulator needs to be checked every time of annual repair. As shown in fig. 9, the bearings 90 of the manipulator are tapered bearings, and are installed between the turbine main shaft 60 and the outer sleeve 80, and a disc spring 100 is provided between inner rings of the two sets of bearings 90. After the two sets of bearings 90 are installed, the outer rings of the two sets of bearings 90 need to overcome the elastic force of the disc spring 100, so that a lock nut 70 is provided at the end of the main shaft 60 for fixing the position of the bearings 90. Because the radial dimension of the bearing 90 is larger, and the diameter of the bearing is phi 800mm, the radial dimension of the lock nut 70 for press mounting is larger, and the outer diameter of the lock nut reaches phi 720mm, so that the requirement on the fastening torque of the lock nut 70 is larger; when the lock nut 70 is installed outside the bearing 90, the outer ring part of each set of bearing 90 is provided with the disc spring piece 100, and when the lock nut 70 is used for press-mounting the bearing 90, the elastic action of the disc spring piece 100 needs to be overcome to install the bearing 90 at a fixed position, so that the fastening difficulty of the lock nut 70 is high; in addition, after the lock nut 70 presses the bearing 90 in place, the lock nut 70 is located inside the outer shaft sleeve 80, and the space between the lock nut 70 and the outer shaft sleeve 80 is narrow, which is not favorable for fastening the lock nut 70. Therefore, the lock nut 70 can only be assembled and disassembled by manual striking, which results in time and labor consumption for each maintenance.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a lock nut mounting and dismounting device, so as to solve the technical problem of low efficiency in mounting and dismounting the lock nut at the conventional shaft end.
The technical scheme adopted by the invention is as follows: a cage nut attaching and detaching device comprising:
the positioning plate is used for being detachably connected with the end part of the main shaft, and a positioning column coaxial with the main shaft is arranged in the middle of the positioning plate;
the torque plate is provided with a prism matched with the screwing tool, and the prism is of a hollow structure and is sleeved outside the positioning column;
the bearing column is axially arranged along the main shaft and is detachably connected with the locking nut;
the end of the moment plate is abutted against the bearing column so that the circumferential acting force of the moment plate is applied to the bearing column.
Preferably, both ends of the positioning plate are provided with positioning keys matched with the key grooves at the shaft end of the main shaft.
Preferably, a positioning surface for enabling the positioning column to be coaxial with the spindle is formed between the positioning key and the positioning plate.
Preferably, the lower surfaces of the two ends of the positioning plate are provided with positioning blocks, the positioning blocks are provided with connecting threaded holes, and the threads in the connecting threaded holes are provided with jacking screws.
Preferably, be equipped with on the locating plate and prevent changeing the post, prevent changeing the post and set up in the upper surface of locating plate with the reference column, prevent changeing the post and be used for forming backstop cooperation with revolving the instrument and prevent to revolve to twist the instrument and rotate.
Preferably, the bearing columns are multiple, and the multiple bearing columns are uniformly distributed around the circumference of the axis of the main shaft.
Preferably, the end part of the bearing column is connected with a connecting ring, and a connecting through hole coaxial with the blind threaded hole in the lock nut is arranged on the connecting ring.
Preferably, the length of the moment plate is at least twice the distance between the bearing column and the spindle shaft.
Another object of the present invention is to provide a method for disassembling and assembling a lock nut, which comprises the steps of:
s10: the positioning plate is detachably connected to the end face of the main shaft;
s20: detachably connecting the bearing column to the end face of the lock nut;
s30: sleeving a screwing tool on a positioning column of the positioning plate;
s40: sleeving the prism of the moment plate on the positioning column of the positioning plate;
s50: the torque plate is driven to rotate by the screwing tool so as to disassemble and assemble the lock nut.
Preferably, the S10 includes: firstly, placing a positioning plate on the end face of a main shaft, and inserting positioning keys at two ends of the positioning plate into key grooves on the end face of the main shaft to enable positioning columns on the positioning plate to be coaxial with the main shaft; and then the jacking screws at the two ends of the positioning plate are rotated so that the positioning plate and the main shaft are connected into a whole.
The S20 includes: the connecting ring at one end of the bearing column is detachably connected to the end face of the locking nut through the connecting bolt.
The S30 includes: the hollow part of the hydraulic wrench is sleeved on the positioning column of the positioning plate, and one end of the hydraulic wrench is abutted against the anti-rotation column.
The S40 includes: the moment plate penetrates through the space between two adjacent bearing columns, and the prism of the moment plate is inserted into the hollow part of the hydraulic wrench and sleeved on the positioning column of the positioning plate.
The S50 includes: the hydraulic wrench is started to drive the torque plate to rotate, and the bearing column and the locking nut are driven to rotate through the torque plate so as to carry out the dismounting operation of the locking nut.
The invention has the beneficial effects that:
1. the positioning keys are arranged at the two ends of the positioning plate, and the positioning plate is connected with the main shaft by inserting the positioning keys into the shaft end key grooves; then, the axial size of the lock nut is indirectly prolonged through the bearing column detachably connected with the lock nut, so that the lock nut is conveniently fastened; then the prism of the moment plate is sleeved on the positioning column of the positioning plate to realize the relative rotation of the moment plate and the positioning plate; and finally, driving the torque plate to rotate by a hydraulic wrench sleeved on the prism of the torque plate, and driving the locking nut to rotate by the abutting of the torque plate and the bearing column to realize the quick assembly and disassembly of the locking nut.
2. The invention can improve the disassembly and assembly speed of the lock nut, further improve the operation efficiency, reduce the labor load of operators and has simple disassembly and assembly process.
3. According to the invention, the two ends of the bearing column are fixedly connected with the connecting rings, the connecting rings are provided with the connecting through holes which are coaxial with the threaded blind holes of the locking nuts, and the bearing column can be quickly connected with the locking nuts through the connecting bolts; meanwhile, the connecting rings are fixedly arranged at the two ends of the bearing column, so that the acting force of the moment plate applied on the bearing column can be stably transferred to the lock nut, and the lock nut can be disassembled and assembled.
4. According to the invention, the arc-shaped positioning surface is formed between the positioning plate and the positioning key, and the positioning column of the positioning plate is coaxial with the spindle through the matching of the positioning surface and the inner wall surface of the spindle, so that the acting force of the torque plate acting on the bearing column is along the circumferential direction of the lock nut, and the lock nut is convenient to rapidly disassemble and assemble.
Drawings
FIG. 1 is a schematic structural view of a lock nut mounting and dismounting device according to the present invention in a use state;
FIG. 2 is a front view of the alignment plate;
FIG. 3 is a top view of the alignment plate;
FIG. 4 is a bottom view of the positioning plate;
FIG. 5 is a front view of the torque plate;
FIG. 6 is a bottom view of the torque plate;
FIG. 7 is a schematic view of the connection of the support post to the connection ring;
FIG. 8 is a top view of the attachment ring;
FIG. 9 is a schematic view of a bearing press-fitting structure;
fig. 10 is a view taken along direction a of fig. 9.
The reference numbers in the figures illustrate:
10-positioning a plate; 11-a positioning post; 12-a positioning key; 13-positioning blocks; 14-connecting threaded holes; 15-tightening the screw; 16-anti-rotation column;
17-a positioning surface; 18-a body section; 19-an end section;
20-a moment plate; 21-prism;
30-a support column;
40-connecting rings; 41-connecting through holes; 42-connecting bolts;
50-a screwing tool;
60-a main shaft; 61-key slot;
70-a lock nut; 71-threaded blind holes;
80-outer sleeve;
90-a bearing;
100-spring leaf.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 10, the main shaft 60 of the manipulator is a hollow shaft, and two key grooves 61 are provided at the end of the main shaft 60; a plurality of threaded blind holes 71 are evenly distributed on the circumference of the lock nut 70 at the end part of the main shaft 60.
An embodiment, as shown in fig. 1 to 8, a cage nut removing and mounting device for quick removal and mounting of a cage nut 70 at an axial end thereof, comprising:
the positioning device comprises a positioning plate 10, a positioning plate and a positioning device, wherein two ends of the positioning plate 10 are detachably connected with the end part of a main shaft 60, and the middle part of the positioning plate 10 is provided with a positioning column 11 which is coaxial with the main shaft 60;
the moment plate 20 is provided with a prism 21 matched with the screwing tool 50, and the prism 21 is of a hollow structure and is sleeved outside the positioning column 11;
at least two support columns 30, each support column 30 being axially arranged along the main shaft 60 and being adapted to be detachably connected to a lock nut 70;
the ends of the moment plate 20 abut the load post 30 such that the circumferential force of the moment plate 20 is applied to the load post 30.
The fixing of the positioning plate 10 is realized by the detachable connection of the end part of the positioning plate 10 and the main shaft 60; then, the axial size of the lock nut 70 is indirectly extended through the bearing column 30 detachably connected with the lock nut 70, so that the lock nut 70 can be conveniently fastened; then the prism 21 of the moment plate 20 is sleeved on the positioning column 11 of the positioning plate 10, so that the moment plate 20 and the positioning plate 10 rotate relatively; finally, the torque plate 20 is driven to rotate by the screwing tool 50 sleeved on the prism 21 of the torque plate 20, and the lock nut 70 is driven to rotate by the abutment of the torque plate 20 and the bearing column 30, so that the lock nut 70 can be quickly disassembled and assembled.
In a specific embodiment, as shown in fig. 1, 2, 3 and 4, the positioning plate 10 is provided with positioning keys 12 at both ends thereof for matching with the key slots 61 at the shaft ends of the main shaft 60, and the width of the positioning keys 12 is 0.5mm smaller than the width of the key slots 61 at the end parts of the main shaft 60. With such an arrangement, the positioning keys 12 at the two ends of the positioning plate 10 can be inserted into the key slots 61 at the ends of the main shaft 60, so as to connect the positioning plate 10 and the main shaft 60, and further position and fix the positioning plate 10.
Preferably, the location plate 10 includes a body section 18 and end sections 19, the end sections 19 are integrally formed at two ends of the body section 18 along the length direction of the body section 18, and the thickness of the end sections 19 is smaller than that of the body section 18; a positioning key 12 is integrally formed below each end section 19, the width of the positioning key 12 is smaller than that of the body section 18, so that a positioning surface 17 is formed between the positioning key 12 and the body section 18, and the positioning surface 17 is an arc surface with the same radius as the inner hole of the main shaft 60. So set up, insert main shaft 60 tip keyway 61 with the navigation key 12 of the two shaft ends of locating plate 10 after, not only can realize being connected of locating plate 10 and main shaft 60, also realize that the circumference of locating plate 10 is fixed promptly, still through the laminating of locating surface 17 and main shaft 60 internal face for reference column 11 on the locating plate 10 is coaxial with main shaft 60, also realizes the radial fixation of locating plate 10 promptly.
In an embodiment, as shown in fig. 1, 2 and 4, a positioning block 13 is vertically connected to the lower surface of each of the two ends of the positioning plate 10, a connection threaded hole 14 is formed in the positioning block 13, and a tightening screw 15 is connected to the connection threaded hole 14 through a female screw. So set up, insert the positioning key 12 of locating plate 10 both ends axle behind the tip keyway 61 of main shaft 60, the accessible rotates the top tight screw 15, realizes the axial fixity of locating plate 10 and main shaft 60 and is connected, the emergence of locating plate 10 not hard up phenomenon when preventing dismouting lock nut 70.
Preferably, the outer wall surface of positioning block 13 is an arc surface having the same radius as the inner hole of main shaft 60. By such arrangement, the positioning column 11 on the positioning plate 10 is coaxial with the main shaft 60 by the attachment of the outer surface of the positioning block 13 and the inner wall surface of the main shaft 60.
In one embodiment, as shown in fig. 1, 3, 5 and 6, the positioning plate 10 is provided with an anti-rotation post 16, the anti-rotation post 16 and the positioning post 11 are vertically disposed on the upper surface of the positioning plate 10, and the anti-rotation post 16 is used for forming a stop cooperation with the screwing tool 50 to prevent the screwing tool 50 from rotating. With this arrangement, circumferential fixing of the screwing tool 50 can be achieved by the screwing tool 50 cooperating with the stopper of the rotation prevention post 16, and the screwing tool 50 drives the torque plate 20 to rotate.
Preferably, the screwing tool 50 is a hydraulic wrench. When the lock nut 70 is disassembled and assembled, the hexagonal prism-shaped hollow portion of the hydraulic wrench is firstly sleeved outside the positioning column 11 of the positioning plate 10, and then the hydraulic wrench is placed on the positioning plate 10, and the end portion of the hydraulic wrench is abutted to the rotation-preventing column 16.
Preferably, the positioning column 11 of the positioning plate 10 is a cylinder, and the prism 21 of the moment plate 20 has a cylindrical inner cavity. With such an arrangement, after the prism 21 is coaxially sleeved outside the positioning column 11, not only is the moment plate 20 coaxial with the main shaft 60, but also the free rotation of the moment plate 20 is realized. The prism body 21 is a hexagonal prism. So configured, the torque plate 20 may be driven to rotate circumferentially by a conventional wrench or a hydraulic wrench.
In one embodiment, as shown in fig. 1, the plurality of load-bearing columns 30 are uniformly distributed around the circumference of the main shaft 60, the number of the load-bearing columns 30 is equal to the number of the blind threaded holes 71 of the lock nut 70, and one end of each load-bearing column 30 is screwed into the blind threaded hole 71 of the lock nut 70. With such an arrangement, the bearing columns 30 are circumferentially arranged around the main shaft 60, so that two ends of the torque plate 20 are abutted against different bearing columns 30, and the circumferential acting force applied by the torque plate 20 is conveniently transferred to the lock nut 70.
Preferably, the number of support columns is 6-12.
In an embodiment, as shown in fig. 1, 7 and 8, both ends of the load-bearing column 30 are fixedly connected to the connection ring 40, the connection ring 40 is provided with a connection through hole 41 coaxial with the threaded blind hole 71 of the lock nut 70, and the connection through hole 41 is provided with a connection bolt 42 for integrally connecting the connection ring 40 and the lock nut 70. By such an arrangement, not only the connection between the load-bearing column 30 and the lock nut 70 is facilitated, but also the number of the load-bearing columns 30 can be increased, and simultaneously, the circumferential acting force applied to the load-bearing column 30 by the moment plate 20 can be completely transferred to the lock nut 70.
Preferably, the length of the moment plate 20 is at least twice the axial distance between the load post 30 and the spindle 60. With the arrangement, two ends of the torque plate 20 can be abutted against different load-bearing columns 30, so that the circumferential acting force applied on the load-bearing columns 30 by the torque plate 20 can be smoothly transferred to the lock nuts 70.
A lock nut dismounting method uses the device to dismount the lock nut, and comprises the following steps:
s10: the positioning plate 10 is detachably attached to the end surface of the main shaft 60.
The method specifically comprises the following steps: firstly, placing a positioning plate 10 on the end face of a main shaft 60, and inserting positioning keys 12 at two ends of the positioning plate 10 into key grooves 61 on the end face of the main shaft 60, so that positioning columns 11 on the positioning plate 10 are coaxial with the main shaft 60, and circumferential and radial fixing of the positioning plate 10 is realized; and then, the jacking screws 15 at the two ends of the positioning plate 10 are rotated to connect the positioning plate 10 and the main shaft 60 into a whole, so that the positioning plate 10 is axially fixed.
S20: the adapter ring 40 at one end of the load-bearing column 30 is detachably connected to the end face of the lock nut 70 through the connecting bolt 42, so as to fixedly connect the load-bearing column 30 and the lock nut 70.
S30: the screwing tool 50 is sleeved on the positioning column 11 of the positioning plate 10.
The method specifically comprises the following steps: the hollow part of the hydraulic wrench is sleeved on the positioning column 11 of the positioning plate 10, and one end of the hydraulic wrench is abutted against the rotation preventing column 16, so that the circumferential and axial fixing of the hydraulic wrench is realized.
S40: the prism 21 of the moment plate 20 is sleeved on the positioning column 11 of the positioning plate 10.
The method specifically comprises the following steps: firstly, the moment plate 20 penetrates through the space between two adjacent bearing columns 30, and then the prism 21 of the moment plate 20 is inserted into the hollow part of the hydraulic wrench and sleeved on the positioning column 11 of the positioning plate 10, so that the radial fixation of the hydraulic wrench is realized;
s50: the hydraulic wrench is started to drive the torque plate 20 to rotate, and the load-bearing column 30 and the lock nut 70 are driven to rotate through the torque plate 20, so that the lock nut 70 is disassembled and assembled.
Compared with the prior art, the application has at least the following beneficial technical effects:
1. in this application, locating piece 13 and the tight screw 15 in top of locating plate 10 accessible bottom are fixed at main shaft 60 inboardly to through the cooperation of both ends positioning key 12 and main shaft 60 tip keyway 61, realize the axial and radial fixed of locating plate 10 and main shaft 60, prevent the backstop cooperation of changeing post 16 and hydraulic wrench on the locating plate 10 at last, can avoid the hydraulic wrench body to produce the rotation and cause spanner oil pipe to damage. According to the torque plate locking device, the torque plate 20 is coaxially sleeved on the positioning column 11, the torque plate 20 is driven to rotate around the axis of the main shaft 60 through the hydraulic wrench, the torque plate 20 is connected with the bearing column 30 in a butting mode, the circumferential acting force applied to the torque plate 20 by the hydraulic wrench can be transferred to the locking nut 70, and the locking nut 70 can be quickly disassembled and assembled.
2. By using the device in the application, the dismounting speed and the operation efficiency of the lock nut 70 can be improved, the labor load of operators is reduced, and the operation is simple.
3. The dismounting method is applied to the turbine shaft/main cylinder bearing replacement project of the 16MN diameter forging machine manipulator in the heavy-metal special steel forging plant, the dismounting time of the lock nut 70 can be shortened to 2 hours from 6 hours, the construction efficiency is improved, and considerable economic benefits are created.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a lock nut dismouting device for install in the dismouting of the lock nut (70) of main shaft (60) tip, wherein, main shaft (60) tip is equipped with two keyway (61), and lock nut (70) go up the circumference equipartition and have a plurality of screw thread blind holes (71), its characterized in that includes:
the positioning device comprises a positioning plate (10), wherein positioning keys (12) matched with key grooves (61) are arranged at two ends of the positioning plate (10), the positioning keys (12) are used for detachably connecting the positioning plate (10) with the end part of a main shaft (60), and a positioning column (11) coaxial with the main shaft (60) is arranged on the positioning plate (10);
the torque plate (20) is provided with a prism body (21) matched with the screwing tool (50), and the prism body (21) is of a hollow structure and is sleeved on the outer side of the positioning column (11);
the bearing column (30), the bearing column (30) is axially arranged along the main shaft (60) and is detachably connected with the lock nut (70) through the threaded blind hole (71);
the end of the moment plate (20) is abutted with the bearing column (30) so that the circumferential acting force of the moment plate (20) is exerted on the bearing column (30).
2. The lock nut attaching and detaching device according to claim 1, wherein a positioning surface (17) for making the positioning post (11) coaxial with the spindle (60) is formed between the positioning key (12) and the positioning plate (10).
3. The lock nut dismounting device according to claim 1, wherein the positioning plate (10) is provided with positioning blocks (13) on the lower surfaces of both ends thereof, the positioning blocks (13) are provided with connecting threaded holes (14), and the connecting threaded holes (14) are internally threaded with tightening screws (15).
4. The lock nut dismounting device according to any one of claims 1-3, wherein the positioning plate (10) is provided with a rotation prevention post (16), the rotation prevention post (16) and the positioning post (11) are arranged on the upper surface of the positioning plate (10), and the rotation prevention post (16) is used for forming a stop fit with the screwing tool (50) to prevent the screwing tool (50) from rotating.
5. A cage nut removal assembly as claimed in claim 1, wherein said carrier posts (30) are plural, and wherein a plurality of said carrier posts (30) are circumferentially spaced about the axis of the spindle (60).
6. A cage nut removal device as claimed in claim 5, characterized in that the end of the support post (30) is connected to a coupling ring (40), and the coupling ring (40) is provided with a connecting through-hole (41) coaxial with the blind threaded hole (71) in the cage nut (70).
7. A cage nut assembly and disassembly apparatus as claimed in claim 1, wherein said torque plate (20) has a length at least twice as long as the distance between the load post (30) and the spindle (60).
8. A lock nut attaching and detaching method, characterized in that the method uses the attaching and detaching device according to any one of claims 1 to 7; the method comprises the following steps:
s10: the positioning plate (10) is detachably connected to the end face of the main shaft (60);
s20: detachably connecting the bearing column (30) to the end face of the lock nut (70);
s30: sleeving a screwing tool (50) on a positioning column (11) of the positioning plate (10);
s40: sleeving a prism (21) of the moment plate (20) on a positioning column (11) of the positioning plate (10);
s50: the torque plate (20) is rotated by a screwing tool (50) to perform the operation of attaching and detaching the lock nut (70).
9. The lock nut attaching and detaching method according to claim 8, wherein said S30 includes: sleeving a hollow part of a hydraulic wrench on a positioning column (11) of a positioning plate (10), and abutting one end of the hydraulic wrench on a rotation prevention column (16);
the S40 includes: the moment plate (20) penetrates through the space between two adjacent bearing columns (30), and then the prism (21) of the moment plate (20) is inserted into the hollow part of the hydraulic wrench and sleeved on the positioning column (11) of the positioning plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020476.8A CN113770710B (en) | 2021-09-01 | 2021-09-01 | Lock nut dismounting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020476.8A CN113770710B (en) | 2021-09-01 | 2021-09-01 | Lock nut dismounting device and method |
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| Publication Number | Publication Date |
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| CN113770710A CN113770710A (en) | 2021-12-10 |
| CN113770710B true CN113770710B (en) | 2022-09-20 |
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| US6105471A (en) * | 1998-01-12 | 2000-08-22 | Mitsubishi Heavy Industries, Ltd. | Bolt attaching and detaching device |
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| CN102357797A (en) * | 2011-10-19 | 2012-02-22 | 中国二十二冶集团有限公司 | Elasticity-type rotary tray and method for installing nut on large oil press |
| CN103817517A (en) * | 2014-02-21 | 2014-05-28 | 中信重工机械股份有限公司 | Device and method for mounting heavy nuts in low space |
| CN103934801A (en) * | 2014-05-10 | 2014-07-23 | 蚌埠玻璃工业设计研究院 | Nut fastening tool applied to narrow space |
| CN106964971A (en) * | 2017-03-27 | 2017-07-21 | 哈尔滨工业大学 | A kind of mechanical arm tool mechanism assembled for small space inner nut |
| CN107984418A (en) * | 2017-10-24 | 2018-05-04 | 武汉船用机械有限责任公司 | A kind of frock for being used to dismount nut |
| CN110039296A (en) * | 2018-01-15 | 2019-07-23 | 中国航发商用航空发动机有限责任公司 | Stud setter and remover |
| CN111660085A (en) * | 2020-06-16 | 2020-09-15 | 中国航发航空科技股份有限公司 | Assembling device for connecting nut in narrow space of high-pressure rotor of engine and operation method |
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