CN112720356A - Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling - Google Patents
Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling Download PDFInfo
- Publication number
- CN112720356A CN112720356A CN202110027302.8A CN202110027302A CN112720356A CN 112720356 A CN112720356 A CN 112720356A CN 202110027302 A CN202110027302 A CN 202110027302A CN 112720356 A CN112720356 A CN 112720356A
- Authority
- CN
- China
- Prior art keywords
- bolt
- nut
- fastener
- rod
- turbine rotor
- Prior art date
- 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.)
- Granted
Links
Images
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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention provides a nondestructive dismounting tool for a connecting bolt of a steam turbine rotor coupling, which belongs to the technical field of steam turbine rotor maintenance and comprises a fixing mechanism, a rotating mechanism, a nut dismounting mechanism and a bolt dismounting mechanism. The nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the invention has the technical effects that the bolt is not damaged when the bolt of the steam turbine rotor coupling is dismounted, the bolt is easy to dismount, the bolts with different specifications can be dismounted, the operation is convenient, and the dismounting is smooth.
Description
Technical Field
The invention belongs to the technical field of steam turbine rotor maintenance, and particularly relates to a nondestructive dismounting tool for a steam turbine rotor coupling connecting bolt.
Background
At present, all the rotors of a main machine shaft system in all the steam turbine generator units are rigidly connected by adopting the shaft couplings to carry out bolts, the fit clearance between the bolts and the shaft coupling holes is only 0.04-0.08mm, and during the long-term operation of the unit: firstly, the very large shearing stress is borne, so that the gap disappears; secondly, as the unit runs at 3000 r/min, the blowing heat generated at the position of the coupler can atomize the peripheral lubricating oil, and further aggravate the disappearance of the fit clearance; finally, when the coupler bolt is disassembled in the unit maintenance, the disassembly is very difficult due to overlarge tightening force, and particularly, the connecting bolt of the coupler with the length of about 1000mm between the generator rotor and the low-voltage rotor is labor-consuming and time-consuming.
The traditional method for disassembling the steam turbine rotor coupling bolt at present has three types: the first method is that the bolt is knocked out by a red copper bar matched with a sledgehammer from one end to the other end, and the method is only suitable for individual bolts with larger gaps; secondly, a bearing block is welded between the original nuts and is ejected out by a jack; thirdly, under the condition that the former two methods have no effect, the drill bit is gradually drilled and disassembled from one end by the magnetic drill; both of the latter two methods described in the prior art cause damage to the original bolt, especially the last method.
Therefore, the need is urgently needed to research a dismounting tool which can quickly dismount the connecting bolt of the steam turbine rotor coupling and can not damage the bolt destructively in the dismounting process.
Disclosure of Invention
The invention aims to provide a nondestructive dismounting tool for a connecting bolt of a steam turbine rotor coupler, and aims to solve the technical problems that the bolt is damaged due to the dismounting type of the connecting bolt of the steam turbine rotor coupler and the bolt is not easy to dismount.
In order to achieve the purpose, the invention adopts the technical scheme that: the tool comprises a fixing mechanism, a rotating mechanism, a nut dismounting mechanism and a bolt dismounting mechanism, wherein the fixing mechanism is connected to the steam turbine rotor coupling and is positioned on one side to be dismounted of a bolt; the rotating mechanism is arranged on the fixing mechanism and can rotate in the circumferential direction in a plane perpendicular to the axial direction of the bolt; the nut dismounting mechanism is arranged at the rotating end of the rotating mechanism and can slide along the radial direction of the bolt, and the nut dismounting mechanism is used for dismounting the nut on the bolt to be dismounted by means of the rotation of the rotating mechanism; the bolt disassembling mechanism can be arranged on the nut disassembling mechanism in a sliding mode along the radial direction of the bolt, and the bolt disassembling mechanism is used for disassembling the bolt to be disassembled and taking out the nut by means of rotation of the rotating mechanism.
As another embodiment of the application, the fixing mechanism comprises a fixing seat and a connecting assembly, the fixing seat is annular and is arranged on the steam turbine rotor coupler and close to a side surface to be disassembled on the bolt, the fixing seat is circumferentially arranged around the bolt to be disassembled, and the bolt to be disassembled is positioned in the center of the fixing seat; the coupling assembling is a plurality of, all locates on the fixing base, be used for connecting on fixing base to the steam turbine rotor coupling side.
As another embodiment of the application, the rotating mechanism comprises a fixed disc, a rotating disc and a driver, wherein the fixed disc is in an annular disc-shaped structure, a plurality of balls are uniformly distributed in the circumferential direction, and the fixed disc is fixed on the fixing mechanism; the rotating disc is arranged on the fixed disc, is buckled with the fixed disc and is coaxially arranged, the balls are positioned between the fixed disc and the rotating disc, the rotating disc can rotate on the fixed disc, and the nut dismounting mechanism is arranged on the rotating disc; the driver is arranged on the fixed disk and used for driving the rotating disk to rotate circumferentially on the fixed disk, the nut detaching mechanism rotates by means of the rotating disk, the nut detaching mechanism is connected with the nut and then used for detaching the nut to be detached in rotation, and the driver can rotate forwards and backwards.
As another embodiment of the application, the nut dismounting mechanism comprises two first slide rails, a slide bar and a nut dismounting assembly, the two first slide rails are arranged on the rotating end of the rotating mechanism and are arranged along the radial direction of the bolt, and the two first slide rails are all positioned on the same straight line; the two sliding rods are respectively arranged on the two first sliding rails in a sliding manner, and the length direction of each sliding rod is axially parallel to the bolt; tear nut subassembly and locate two between the slide bar and both ends respectively with two the medial surface swivelling joint of slide bar, it can be rotatory around perpendicular to bolt axial direction to tear nut subassembly open, tear bolt mechanism and locate tear nut subassembly open and go up, tear rotatory back of nut subassembly open bolt mechanism together rotatory, it is used for dismantling the nut on the bolt to tear nut subassembly open, tear bolt mechanism open with the help of it is rotatory adjustable and the alignment position of waiting to dismantle the bolt to tear nut subassembly open, it aligns and is used for dismantling the bolt after connecting the bolt to tear bolt mechanism open.
As another embodiment of the application, the nut dismounting assembly comprises a first fastener, a second fastener and a locking member, wherein the first fastener is a semi-closed quadrilateral structure with a notch and is used for abutting against one side of a nut to be dismounted, and the shape of the first fastener is matched with the shape of the nut to be dismounted; the second fastener is a semi-closed quadrilateral structure with an opening and is used for being mutually butted with the first fastener and forming a closed inner hexagonal structure for surrounding the nut to be disassembled after being butted, and the nut can be disassembled by means of rotation of the rotating mechanism after the first fastener and the second fastener are butted and surround the nut; retaining member is a plurality of, all locates first fastener with on the same one side of second fastener, both ends are connected respectively first fastener side with the second fastener side, the retaining member is used for locking first fastener with second fastener and adjustable first fastener with interval between the second fastener.
As another embodiment of this application, the inside of first fastener or second fastener all is equipped with a plurality of elastic components, and is a plurality of the elastic component can to the inboard bounce of first fastener or second fastener, first fastener or second fastener encloses behind the nut the elastic component is used for the butt to wait to dismantle the lateral surface of nut.
As another embodiment of the application, the bolt dismounting mechanism comprises two telescopic columns, a bolt dismounting assembly and a second slide rail, one end of each telescopic column is arranged on the nut dismounting mechanism, the other end of each telescopic column is a free end, and the two telescopic columns are arranged in parallel and extend along the axial direction of the bolt; the bolt disassembling assembly is used for disassembling the bolt to be disassembled and taking out the nut, the bolt disassembling assembly is used for being sleeved on the bolt and detachably connected with the bolt, and the bolt disassembling assembly is rotated by means of the rotating mechanism and used for disassembling the bolt; the second slide rail is arranged on the inner side face of the bolt disassembling assembly and is radially arranged along a bolt, the free ends of the telescopic columns are connected with the second slide rail in a sliding mode, the bolt disassembling assembly can be opposite to the nut disassembling assembly and can translate along the radial direction of the bolt, and the connecting position of the bolt disassembling assembly and the bolt to be disassembled can be adjusted in a sliding mode through the second slide rail.
As another embodiment of the application, the bolt dismounting assembly comprises a ring and a pushing piece, the ring is annular, the second sliding rail is arranged on the end surface of the inner side of the ring, the ring is used for being sleeved on a bolt to be dismounted, and a plurality of through holes are formed in the circumference of the ring in the upward direction; the ejection piece is a plurality of, all follows lantern ring circumference equipartition all passes the through-hole reaches inside the lantern ring, the ejection piece can follow the lantern ring is radial to the lantern ring is inside waits to dismantle bolt outer wall and pushes up, can fix spacing bolt after the ejection piece pushes up, the lantern ring is used for dismantling with the help of rotary mechanism is rotatory to wait to dismantle the bolt.
As another embodiment of the application, the ejector comprises a sleeve and a screw, the sleeve penetrates through the through hole and is fixed in the through hole, and an internal thread is arranged in the sleeve; the screw rod spiro union is in inside the sleeve, can to after rotatory the screw rod the lantern ring is inside or outside to be removed, screw rod inner is equipped with the drill bit, the drill bit can bore wait to dismantle inside the bolt, wait to dismantle the bolt by a plurality of ejector member the screw rod is spacing fixed.
As another embodiment of the present application, the locking member includes a first rod, a second rod and an adjusting rod, one end of the first rod is connected to the outer side surface of the first fastener, the other end of the first rod is a free end, and the free end of the first rod is provided with an internal thread; one end of a second rod is connected to the outer side face of the second fastener, the other end of the second rod is a free end, the second rod is coaxially arranged with the first rod and is positioned on the extension line of the length direction of the first rod, and the free end of the second rod is provided with an internal thread and is opposite to the internal thread of the first rod in the rotating direction; the two ends of the adjusting rod are respectively provided with external threads and are opposite in rotating direction, the two ends of the adjusting rod are respectively in threaded connection with the first rod internal threads and the second rod internal threads, and the distance between the first rod and the second rod can be adjusted after the adjusting rod is screwed.
The nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the invention has the beneficial effects that: compared with the prior art, the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling is characterized in that the fixing mechanism is arranged on the steam turbine rotor coupling, the nut dismounting mechanism and the bolt dismounting mechanism are driven to rotate by the rotating mechanism, the nut and the bolt can be sequentially dismounted from the bolt to be dismounted, the nut dismounting mechanism can slide along the radial direction of the bolt, the nuts with different specifications can be dismounted, the bolt dismounting mechanism slides on the nut dismounting mechanism, the alignment position of the bolt with the bolt to be dismounted can be adjusted, the technical problems that the bolt is damaged when the connecting bolt of the steam turbine rotor coupling is dismounted in a dismounting mode, and the bolt is not easy to dismount are solved, and the nondestructive dismounting tool has the technical effects that the bolt is not damaged when the bolt of the steam turbine rotor coupling is dismounted, the bolt is easy to dismount, the bolts with different specifications can be.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a nondestructive removal tool for a steam turbine rotor coupling connection bolt provided in an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a connecting bolt of a steam turbine rotor coupling connection bolt nondestructive dismounting tool on a dismounted steam turbine rotor coupling according to an embodiment of the present invention;
FIG. 3 is a top view of a nut dismounting mechanism of a nondestructive dismounting tool for a steam turbine rotor coupling connecting bolt provided by an embodiment of the invention;
FIG. 4 is a top view of a bolt dismounting mechanism of a nondestructive dismounting tool for a steam turbine rotor coupling connecting bolt provided by an embodiment of the invention;
FIG. 5 is a side view of a bolt dismounting mechanism of a nondestructive dismounting tool for a steam turbine rotor coupling connecting bolt provided by an embodiment of the invention;
FIG. 6 is a side view of a bolt removing mechanism for a nondestructive removal tool for a steam turbine rotor coupling attachment bolt according to another embodiment of the present invention;
FIG. 7 is a schematic view of a fixing mechanism and a rotating mechanism of a nondestructive dismounting tool for a connecting bolt of a steam turbine rotor coupling provided by an embodiment of the invention;
fig. 8 is a schematic structural view of a bolt dismounting mechanism of a nondestructive dismounting tool for a steam turbine rotor coupling connecting bolt, which is provided by the embodiment of the invention, facing a bolt to be dismounted after rotating.
In the figure: 1. a fixing mechanism; 11. a fixed seat; 12. a connecting assembly;
2. a rotation mechanism; 21. fixing the disc; 22. rotating the disc; 23. a driver; 231. a reduction motor; 232. a gear shaft; 233. a gear; 234. a toothed ring; 24. a ball bearing; 25. unhooking prevention;
3. a nut dismounting mechanism; 31. a first slide rail; 32. a slide bar; 33. disassembling the nut assembly; 331. a first fastener; 332. a second fastener; 333. a locking member; 3331. a first lever; 3332. a second lever; 3333. adjusting a rod; 334. an elastic member; 3341. a spring; 3342. a spring plate;
4. a bolt detaching mechanism; 41. a telescopic column; 42. disassembling the bolt assembly; 421. a collar; 422. pushing the ejection piece; 4221. a sleeve; 4222. a screw; 4223. a drill bit; 43. a second slide rail;
5. a steam turbine rotor coupling.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 8, the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the invention will be described. The nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling comprises a fixing mechanism 1, a rotating mechanism 2, a nut dismounting mechanism 3 and a bolt dismounting mechanism 4, wherein the fixing mechanism 1 is used for being connected to the steam turbine rotor coupling 5 and is positioned on one side to be dismounted of the bolt; the rotating mechanism 2 is arranged on the fixing mechanism 1 and can rotate in the circumferential direction in a plane perpendicular to the axial direction of the bolt; the nut dismounting mechanism 3 is arranged at the rotating end of the rotating mechanism 2 and can slide along the radial direction of the bolt, and the nut dismounting mechanism 3 is used for dismounting the nut on the bolt to be dismounted by means of the rotation of the rotating mechanism 2; the bolt dismounting mechanism 4 can be arranged on the nut dismounting mechanism 3 in a sliding mode along the radial direction of the bolt, and the bolt dismounting mechanism 4 is used for dismounting the bolt to be dismounted and taking out the nut by means of rotation of the rotating mechanism 2.
Compared with the prior art, the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling, provided by the invention, has the advantages that the fixing mechanism 1 is arranged on the steam turbine rotor coupling 5, the nut dismounting mechanism 3 and the bolt dismounting mechanism 4 are driven to rotate by the rotating mechanism 2, the nut and the bolt can be sequentially dismounted from the bolt to be dismounted, the nut dismounting mechanism 3 can slide along the radial direction of the bolt, the nuts with different specifications can be dismounted, the aligning position with the bolt to be dismounted can be adjusted by sliding the bolt dismounting mechanism 4 on the nut dismounting mechanism 3, the technical problems that the bolt is damaged in a dismounting mode for the connecting bolt of the steam turbine rotor coupling 5 and the bolt is not easy to dismount are solved, the bolt is not damaged when the bolt of the steam turbine rotor coupling 5 is dismounted, and the bolt is easy to dismount, can dismantle different specification bolts, convenient operation dismantles smooth technological effect.
The 5 connecting bolts of steam turbine rotor shaft coupling generally set up to 6, respectively set up 3 in a side, set up on two sides altogether, when needs dismantle the bolt, fix this extracting tool on the shaft coupling earlier, rethread 2 drive of rotary mechanism tear nut mechanism 3 open and tear the rotation of bolt mechanism 4 open, and then can dismantle the nut and the bolt (the double-screw bolt) of bolt on the shaft coupling in proper order, accomplish the dismantlement operation. According to the invention, the operation sequence is that the nut is firstly disassembled and then the bolt is disassembled.
As a specific embodiment of the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the invention, please refer to fig. 1 to 8, the fixing mechanism 1 comprises a fixing seat 11 and a connecting assembly 12, the fixing seat 11 is annular and is arranged on the steam turbine rotor coupling 5 and close to a side surface to be dismounted on the bolt, the fixing seat 11 is circumferentially arranged around the bolt to be dismounted, and the bolt to be dismounted is positioned at the center of the fixing seat 11; coupling assembling 12 is a plurality of, all locates on fixing base 11 for connect on fixing base 11 to the 5 sides of steam turbine rotor coupling. Be equipped with the holding chamber that is used for holding coupling assembling 12 on the fixing base 11, the fixing base 11 bottom is equipped with a plurality of coupling assembling 12, is connected to the shaft coupling through coupling assembling 12 with fixing base 11.
In particular, the connecting assembly 12 comprises a screw, by which the fixing of the fixing base 11 to the coupling is obtained. A plurality of coupling assembling 12 equipartitions are the annular on fixing base 11, and are provided with the blind hole on the shaft coupling, and coupling assembling 12 can penetrate this blind hole after being connected to on the shaft coupling in, realizes connecting, when need not use this extracting tool, can dismantle coupling assembling 12 from the shaft coupling.
As a specific embodiment of the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the invention, please refer to fig. 1 to 8, the rotating mechanism 2 comprises a fixed disk 21, a rotating disk 22 and a driver 23, the fixed disk 21 is in an annular disk-shaped structure, a plurality of balls 24 are uniformly distributed on the circumference, and the fixed disk 21 is fixed on the fixing mechanism 1; the rotating disc 22 is arranged on the fixed disc 21, is buckled with the fixed disc 21 and is coaxially arranged, the plurality of balls 24 are positioned between the fixed disc 21 and the rotating disc 22, the rotating disc 22 can rotate on the fixed disc 21, and the nut dismounting mechanism 3 is arranged on the rotating disc 22; the driver 23 is arranged on the fixed disk 21 and used for driving the rotating disk 22 to rotate on the fixed disk 21 in the circumferential direction, the nut detaching mechanism 3 rotates by means of the rotating disk 22, the nut detaching mechanism 3 is connected with a nut and then used for detaching the nut to be detached in the rotating process, and the driver 23 can rotate forwards and backwards.
Specifically, an anti-slip hook 25 for preventing the rotating disk 22 from slipping off the fixed disk 21 is provided on the outer sides of the fixed disk 21 and the rotating disk 22, and a small ball is also provided inside the anti-slip hook 25, so that the rotating disk 22 and the fixed disk 21 are in rolling friction connection, rigid connection is prevented, and friction force is reduced.
In this embodiment, the driver 23 includes a speed reducing motor 231, a coupling connected to an output end of the speed reducing motor 231, and a gear shaft 232 connected through the coupling, a gear 233 is disposed on the gear shaft 232, another end of the gear shaft 232 is used for rotatably connecting with the inside of the fixed disk 21, an annular toothed ring 234 is disposed on an inner side surface of the rotating disk 22, the toothed ring 234 is in meshing transmission connection with the gear 233, the rotation of the gear 233 can drive the toothed ring 234 to rotate, and further drive the rotating disk 22 to rotate, so that the rotating connection relationship between the fixed disk 21 and the rotating disk 22 is realized. The gear ring 234 is a structure with teeth arranged in a circular ring shape and can be in transmission engagement with the gear 233.
As a specific embodiment of the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the invention, please refer to fig. 1 to 8, the nut dismounting mechanism 3 includes two first slide rails 31, two slide bars 32 and a nut dismounting component 33, the two first slide rails 31 are arranged on the rotating end of the rotating mechanism 2 and are arranged along the radial direction of the bolt, and the two first slide rails 31 are both positioned on the same straight line; the two slide bars 32 are respectively arranged on the two first slide rails 31 in a sliding manner, and the length direction of each slide bar 32 is parallel to the axial direction of the bolt; tear nut component 33 and locate between two slide bars 32 and both ends respectively with the medial surface swivelling joint of two slide bars 32, tear nut component 33 and can rotate around the perpendicular to bolt axial direction, tear bolt mechanism 4 and locate on tearing nut component 33 open, tear nut component 33 and rotate the back and tear bolt mechanism 4 together rotatory, tear nut component 33 and be used for dismantling the nut on the bolt of waiting to dismantle, tear bolt mechanism 4 with the help of tearing nut component 33 rotatory adjustable and waiting to dismantle the alignment position of bolt, tear bolt mechanism 4 and align and be used for dismantling the bolt after connecting the bolt. The distance between the two sliding rods 32 is adjustable, after the nut dismounting assembly 33 is adjusted, the two sliding rods 32 are adjusted on the first sliding rail 31, and finally the two sliding rods 32 are fixed on the first sliding rail 31, so that the nut dismounting assembly 33 can be driven to rotate through the rotating mechanism 2.
Specifically, the nut dismounting assembly 33 is rotatably connected with the two sliding rods 32 through a bearing, and a jackscrew is arranged on the bearing, so that the rotation angle of the nut dismounting assembly 33 can be limited, generally, the angle of one rotation of the nut dismounting assembly 33 is 180 degrees, even if the bolt dismounting mechanism 4 is close to or far away from the bolt or the nut to be dismounted.
As a specific embodiment of the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the present invention, please refer to fig. 1 to 8, the dismounting nut component 33 includes a first fastening member 331, a second fastening member 332 and a locking member 333, the first fastening member 331 is a semi-closed quadrilateral structure with a gap and is used for abutting against one side of the nut to be dismounted, and the shape of the first fastening member 331 is matched with the shape of the nut to be dismounted; the second fastener 332 is a semi-closed quadrilateral structure with an opening, and is used for being mutually butted with the first fastener 331 and forming a closed inner hexagonal structure for surrounding the nut to be disassembled after being butted, and the nut can be disassembled by means of rotation of the rotating mechanism 2 after the first fastener 331 and the second fastener 332 are butted and surround the nut; retaining member 333 is a plurality of, all locates first fastener 331 and second fastener 332 with the one side edge, and first fastener 331 side and second fastener 332 side are connected respectively to both ends, and retaining member 333 is used for locking first fastener 331 and second fastener 332 and adjustable interval between first fastener 331 and the second fastener 332. To tear nut component 33 and set up to interval adjustable structure, the advantage is convenient for dismantle the nut of different specifications or diameter, as long as can enclose the nut after combining first fastener 331 and second fastener 332, just can dismantle the operation to this nut. After the nut is encircled, the nut can be locked through the locking piece 333, so that the first fastener 331 and the second fastener 332 are firmly contacted with the nut, and the nut can be prevented from slipping when being screwed. The locking member 333 is telescopically adjustable, which is a manual adjustment.
Specifically, first fastener 331 and second fastener 332 are the structural style of half hexagon nut promptly, can enclose the nut of treating the dismantlement to with the mutual adaptation of nut shape, hold the nut tightly completely after, can easily dismantle.
Referring to fig. 1 to 8, a plurality of elastic members 334 are disposed inside the first fastening member 331 or the second fastening member 332, the elastic members 334 can be bounced to the inner side of the first fastening member 331 or the second fastening member 332, and the elastic members 334 are used for abutting against the outer side of the nut to be disassembled after the first fastening member 331 or the second fastening member 332 embraces the nut.
Specifically, the elastic member 334 includes a spring 3341 and a spring plate 3342, the spring 3341 is disposed on an inner side surface of the first fastening member 331 or the second fastening member 332, the spring plate 3342 is disposed at a free end of the spring 3341, the spring plates 3342 are plural, and planes of the plural spring plates 3342 are parallel to planes of an inner side of the first fastening member 331 or the second fastening member 332, respectively, after the first fastening member 331 or the second fastening member 332 embraces the nut, the elastic member 334 plays a role of preferential embracing, and also can play a role of embracing the nut with a smaller specification, at this time, the first fastening member 331 or the second fastening member 332 cannot embrace, and the plural elastic members 334 can play a role of abutting and driving the nut to rotate.
As a specific embodiment of the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling, please refer to fig. 1 to 8, the bolt dismounting mechanism 4 includes two telescopic columns 41, a bolt dismounting assembly 42 and a second slide rail 43, one end of each telescopic column 41 is arranged on the nut dismounting mechanism 3, the other end of each telescopic column is a free end, the two telescopic columns 41 are arranged in parallel, and the telescopic direction is along the axial direction of the bolt; the bolt disassembling assembly 42 is used for disassembling the bolt to be disassembled and taking out the nut, the bolt disassembling assembly 42 is used for being sleeved on the bolt and detachably connected with the bolt, and the bolt disassembling assembly 42 is rotated by the aid of the rotating mechanism 2 and used for disassembling the bolt; the second slide rail 43 is arranged on the inner side surface of the bolt disassembling assembly 42 and is radially arranged along a bolt, the free ends of the two telescopic columns 41 are slidably connected with the second slide rail 43, the bolt disassembling assembly 42 can relatively disassemble the nut assembly 33 and move along the radial direction of the bolt, and the connection position of the bolt disassembling assembly 42 and the bolt to be disassembled can be adjusted by sliding through the second slide rail 43.
Through the adjustable bolt subassembly 42 of tearing open of flexible post 41 and the bolt between the interval, can adjust through second slide rail 43 and tear bolt subassembly 42 and radially translate the position at the bolt, be convenient for adjust with the alignment position of bolt, make things convenient for the later stage fast and bolted connection, and then accomplish and dismantle the operation. When the bolt detaching mechanism 4 is used, the rotary nut detaching mechanism 3 is rotated by 180 degrees, so that the bolt detaching mechanism 4 is close to the bolt to be detached.
Specifically, the two ends of the first slide rail 31 and the second slide rail 43 are respectively provided with a limiting block, so that the sliding range can be limited, and the slipping can be prevented. The telescopic column 41 is an electric telescopic column 41, and the telescopic length of the electric telescopic column can be adjusted and controlled.
As a specific embodiment of the nondestructive dismounting tool for the connecting bolt of the steam turbine rotor coupling provided by the invention, please refer to fig. 1 to 8, the dismounting bolt assembly 42 includes a collar 421 and a pushing member 422, the collar 421 is ring-shaped, the second slide rail 43 is arranged on the end surface of the inner side of the collar 421, the collar 421 is used for being sleeved on the bolt to be dismounted, and a plurality of through holes are arranged in the circumferential direction of the collar 421; ejector 422 is a plurality of, all along lantern ring 421 circumference equipartition, all passes the through-hole and to lantern ring 421 inside, and ejector 422 can follow lantern ring 421 radially to the lantern ring 421 inside wait to dismantle bolt outer wall top jack, can fix the spacing bolt after ejector 422 pushes away, and lantern ring 421 is used for dismantling the bolt with the help of rotary mechanism 2 rotation. Through adjusting a plurality of ejector pieces 422 to on the butt bolt outer wall, and then fixable bolt, through rotary mechanism 2's rotation, the rotation of bolt subassembly 42 is torn open in the drive, and then can twist the bolt soon and dismantle.
Specifically, can set up a lantern ring 421, also can set up two lantern rings 421, fixed connection between two lantern rings 421, and coaxial setting, this condition is for bolt length is longer, is difficult to realize the dismantlement to the bolt through a lantern ring 421, and the dismantlement mode of two lantern rings 421 of adoption, can improve dismantlement efficiency like this fast.
As a specific embodiment of the tool for nondestructively disassembling a coupling bolt of a steam turbine rotor coupling provided by the present invention, please refer to fig. 1 to 8, a pushing member 422 includes a sleeve 4221 and a screw 4222, the sleeve 4221 passes through the through hole and is fixed in the through hole, and an internal thread is provided in the sleeve 4221; the screw 4222 is screwed in the sleeve 4221, the screw 4222 can move towards the inside or the outside of the lantern ring 421 after being rotated, a drill bit 4223 is arranged at the inner end of the screw 4222, the drill bit 4223 can drill into the bolt to be disassembled, and the bolt to be disassembled is limited and fixed by the screws 4222 of the plurality of ejection pieces 422. The bit 4223 may be drilled into the outer wall of the bolt or may be drilled to provide an opening which increases the connection between the collar 421 and the bolt and ensures sufficient stability. After the screw 4222 is turned in the reverse direction, the collar 421 is disengaged from the bolt.
As a specific embodiment of the tool for non-destructive dismounting of the connecting bolt of the steam turbine rotor coupling according to the present invention, referring to fig. 1 to 8, the locking member 333 includes a first rod 3331, a second rod 3332 and an adjusting rod 3333, wherein one end of the first rod 3331 is connected to the outer side of the first fastener 331, the other end is a free end, and the free end of the first rod 3331 is provided with an internal thread; one end of the second rod 3332 is connected to the outer side surface of the second fastener 332, the other end is a free end, the second rod 3332 and the first rod 3331 are coaxially arranged and are positioned on the extension line of the length direction of the first rod 3331, and the free end of the second rod 3332 is provided with an internal thread and has the opposite screwing direction with the internal thread of the first rod 3331; the two ends of the adjusting rod 3333 are respectively provided with external threads, the rotating directions of the two ends of the adjusting rod 3333 are opposite, the two ends of the adjusting rod 3333 are respectively in threaded connection with the internal threads of the first rod 3331 and the internal threads of the second rod 3332, and the distance between the first rod 3331 and the second rod 3332 can be adjusted after the adjusting rod 3333 is screwed. By screwing the adjusting rod 3333, the nut can be tightly held, the nut can be conveniently screwed and disassembled after being tightly held, the locking piece 333 is convenient to adjust, and the surrounding and disassembling operations of nuts with different specifications are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The harmless extracting tool of steam turbine rotor coupling connecting bolt, its characterized in that includes:
the fixing mechanism is used for being connected to the steam turbine rotor coupling and is positioned on one side to be detached on the bolt;
the rotating mechanism is arranged on the fixing mechanism and can rotate in the circumferential direction in a plane perpendicular to the axial direction of the bolt;
the nut dismounting mechanism is arranged at the rotating end of the rotating mechanism and can slide along the radial direction of the bolt, and the nut dismounting mechanism is used for dismounting the nut on the bolt to be dismounted by means of the rotation of the rotating mechanism; and
and the bolt disassembling mechanism can be arranged on the nut disassembling mechanism in a sliding manner along the radial direction of the bolt, and is used for disassembling the bolt to be disassembled and taking out the nut by means of the rotation of the rotating mechanism.
2. A nondestructive removal tool for a steam turbine rotor coupling tie bolt according to claim 1 wherein said securing mechanism comprises:
the fixing seat is annular and is arranged on the steam turbine rotor coupler and close to one side surface to be disassembled on the bolt, the fixing seat is circumferentially arranged around the bolt to be disassembled, and the bolt to be disassembled is positioned in the center of the fixing seat; and
the connecting components are multiple and are arranged on the fixing seat and used for connecting the fixing seat to the side face of the steam turbine rotor coupling.
3. A nondestructive removal tool for a steam turbine rotor coupling tie bolt according to claim 1 wherein said rotation mechanism comprises:
the fixed disc is of an annular disc-shaped structure, a plurality of balls are uniformly distributed in the circumferential direction, and the fixed disc is fixed on the fixing mechanism;
the rotating disc is arranged on the fixed disc, is buckled with the fixed disc and is coaxially arranged, the balls are positioned between the fixed disc and the rotating disc, the rotating disc can rotate on the fixed disc, and the nut dismounting mechanism is arranged on the rotating disc; and
the driver is arranged on the fixed disk and used for driving the rotating disk to rotate circumferentially on the fixed disk, the nut detaching mechanism rotates by means of the rotating disk, the nut detaching mechanism is connected with the nut and then used for detaching the nut to be detached in rotation, and the driver can rotate forwards and backwards.
4. A nondestructive removal tool for a steam turbine rotor coupling attachment bolt according to claim 1 wherein said nut removing mechanism comprises:
the two first sliding rails are arranged on the rotating end of the rotating mechanism and are arranged along the radial direction of the bolt, and the two first sliding rails are positioned on the same straight line;
the two sliding rods are respectively arranged on the two first sliding rails in a sliding manner, and the length direction of each sliding rod is parallel to the axial direction of the bolt; and
tear nut component open, locate two between the slide bar and both ends respectively with two the medial surface swivelling joint of slide bar, it can be rotatory around perpendicular to bolt axial direction to tear nut component open, tear bolt mechanism open and locate tear nut component open is last, tear rotatory back of nut component open bolt mechanism together rotatory, tear nut component open and be used for dismantling the nut on the bolt, tear bolt mechanism open with the help of tear the rotatory adjustable and alignment position of waiting to dismantle the bolt of nut component open, it aligns and is used for dismantling the bolt behind the connecting bolt to tear bolt mechanism open.
5. The turbine rotor coupling tie bolt nondestructive removal tool of claim 4 wherein said nut removal assembly comprises:
the first fastener is of a semi-closed quadrilateral structure with a notch and is used for abutting against one side of the nut to be disassembled, and the shape of the first fastener is matched with the shape of the nut to be disassembled;
the second fastener is a semi-closed quadrilateral structure with an opening and is used for being mutually butted with the first fastener and forming a closed inner hexagonal structure for surrounding the nut to be disassembled after being butted, and the nut can be disassembled by means of rotation of the rotating mechanism after the first fastener and the second fastener are butted and surround the nut; and
retaining member, it is a plurality of, all locate first fastener with on the same one side of second fastener, both ends are connected respectively first fastener side with the second fastener side, the retaining member is used for locking first fastener with second fastener and adjustable first fastener with interval between the second fastener.
6. A nondestructive removal tool for steam turbine rotor coupling joint stud according to claim 5 wherein said first fastener or said second fastener has a plurality of resilient members disposed therein, said plurality of resilient members being adapted to spring inwardly of said first fastener or said second fastener, said resilient members being adapted to abut against the outer surface of the nut to be removed after said first fastener or said second fastener has been received around the nut.
7. A nondestructive removal tool for a steam turbine rotor coupling tie bolt according to claim 1 wherein said bolt removal mechanism comprises:
the two telescopic columns are arranged in parallel, and the telescopic direction of the two telescopic columns is along the axial direction of the bolt;
the bolt disassembling assembly is used for disassembling the bolt to be disassembled and taking out the nut, the bolt disassembling assembly is sleeved on the bolt and detachably connected with the bolt, and the bolt disassembling assembly is rotated by the aid of the rotating mechanism and used for disassembling the bolt; and
the second slide rail is arranged on the inner side face of the bolt disassembling assembly and is radially arranged along a bolt, the free ends of the telescopic columns are connected with the second slide rail in a sliding mode, the bolt disassembling assembly can be opposite to the nut disassembling assembly and can translate along the radial direction of the bolt, and the connecting position of the bolt disassembling assembly and the bolt to be disassembled can be adjusted in a sliding mode through the second slide rail.
8. A nondestructive removal tool for a steam turbine rotor coupling tie bolt according to claim 7 wherein said bolt removal assembly comprises:
the second sliding rail is arranged on the end face of the inner side of the lantern ring, the lantern ring is used for being sleeved on a bolt to be disassembled, and a plurality of through holes are formed in the lantern ring in the circumferential direction; and
the ejection pieces are multiple and evenly distributed in the circumferential direction of the lantern ring and penetrate through the through holes and to the interior of the lantern ring, the ejection pieces can be pushed against the outer wall of the bolt to be disassembled in the lantern ring in the radial direction of the lantern ring, the ejection pieces can fix the limiting bolt after being pushed against, and the lantern ring is used for disassembling the bolt to be disassembled by means of rotation of the rotating mechanism.
9. A nondestructive removal tool for a steam turbine rotor coupling tie bolt according to claim 8 wherein said ejector member comprises:
the sleeve penetrates through the through hole and is fixed in the through hole, and internal threads are arranged in the sleeve; and
the screw rod is in threaded connection with the inside of the sleeve, the screw rod can move towards the inside or the outside of the lantern ring after being rotated, a drill bit is arranged at the inner end of the screw rod, the drill bit can drill into the inside of the bolt to be disassembled, and the bolt to be disassembled is limited and fixed by the screw rod of the ejection piece.
10. The tool for nondestructive removal of a steam turbine rotor coupling tie bolt of claim 5 wherein said retaining member comprises:
one end of the first rod is connected to the outer side face of the first fastener, the other end of the first rod is a free end, and the free end of the first rod is provided with an internal thread;
one end of the second rod is connected to the outer side face of the second fastener, the other end of the second rod is a free end, the second rod and the first rod are coaxially arranged and are positioned on the extension line of the length direction of the first rod, and the free end of the second rod is provided with an internal thread and is opposite to the internal thread of the first rod in the rotating direction; and
and the two ends of the adjusting rod are respectively provided with external threads and are opposite in rotating direction, and the two ends of the adjusting rod are respectively in threaded connection with the first rod internal threads and the second rod internal threads, and the distance between the first rod and the second rod can be adjusted after the adjusting rod is screwed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110027302.8A CN112720356B (en) | 2021-01-09 | 2021-01-09 | Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110027302.8A CN112720356B (en) | 2021-01-09 | 2021-01-09 | Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112720356A true CN112720356A (en) | 2021-04-30 |
| CN112720356B CN112720356B (en) | 2022-05-27 |
Family
ID=75590051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110027302.8A Active CN112720356B (en) | 2021-01-09 | 2021-01-09 | Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112720356B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279824A (en) * | 2021-05-25 | 2021-08-20 | 河北邯峰发电有限责任公司 | HMN steam turbine X-criterion fixed value real-time comparison system based on TSE stress estimation |
| CN114851131A (en) * | 2022-03-31 | 2022-08-05 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Tooth-shaped coupling rotates assembly and disassembly tools |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458991A (en) * | 2016-01-27 | 2016-04-06 | 中电投河南电力检修工程有限公司 | Non-destructive disassembling tool for connecting bolt of steam turbine rotor coupler |
| CN108215658A (en) * | 2018-01-31 | 2018-06-29 | 吴凡 | A kind of New-energy electric vehicle tire intelligently removes and installs equipment |
| CN108297616A (en) * | 2018-01-29 | 2018-07-20 | 西安航空学院 | A kind of multiple fixing bolt screwing devices of automobile tire dismounting |
| CN208496893U (en) * | 2018-07-06 | 2019-02-15 | 深圳市永顺五金制品有限公司 | Bolt and nut dismantling device |
| CN210500083U (en) * | 2019-06-11 | 2020-05-12 | 滁州市金路数控机械有限公司 | Special tool for disassembling manhole cover |
-
2021
- 2021-01-09 CN CN202110027302.8A patent/CN112720356B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458991A (en) * | 2016-01-27 | 2016-04-06 | 中电投河南电力检修工程有限公司 | Non-destructive disassembling tool for connecting bolt of steam turbine rotor coupler |
| CN108297616A (en) * | 2018-01-29 | 2018-07-20 | 西安航空学院 | A kind of multiple fixing bolt screwing devices of automobile tire dismounting |
| CN108215658A (en) * | 2018-01-31 | 2018-06-29 | 吴凡 | A kind of New-energy electric vehicle tire intelligently removes and installs equipment |
| CN208496893U (en) * | 2018-07-06 | 2019-02-15 | 深圳市永顺五金制品有限公司 | Bolt and nut dismantling device |
| CN210500083U (en) * | 2019-06-11 | 2020-05-12 | 滁州市金路数控机械有限公司 | Special tool for disassembling manhole cover |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279824A (en) * | 2021-05-25 | 2021-08-20 | 河北邯峰发电有限责任公司 | HMN steam turbine X-criterion fixed value real-time comparison system based on TSE stress estimation |
| CN114851131A (en) * | 2022-03-31 | 2022-08-05 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Tooth-shaped coupling rotates assembly and disassembly tools |
| CN114851131B (en) * | 2022-03-31 | 2024-02-23 | 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 | Tooth-shaped coupler rotating and disassembling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112720356B (en) | 2022-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112720356B (en) | Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling | |
| CN109551427B (en) | Dismounting device for threaded connection end cover | |
| RU2474671C1 (en) | Device for thread cutting on pipes at well head | |
| CN211565753U (en) | Dismounting device for toothed nut of engine | |
| KR101019567B1 (en) | Fastening bolt for nuclear power turbine coupling | |
| CN218695851U (en) | Nut tightening and disassembling device for aircraft assembly and maintenance | |
| US20040096271A1 (en) | Quill shaft tensioning coupling | |
| CN103352924A (en) | Heavy-load hub cone interference fitting structure and installing and dismantling method thereof | |
| CN101402191A (en) | Large-scale thin-wall wimble barrel disassembling clamper | |
| CN210757535U (en) | Disassembling and assembling device for drill rod locking nut | |
| CN210633598U (en) | Disassembling tool for steam turbine coupling bolt | |
| US8763224B2 (en) | Pinion disassembly tool and method | |
| CN212330918U (en) | Mechanical type injection pump gear nut screws up fixing device | |
| CN203384242U (en) | Conical interference fit structure for heavy-duty hub | |
| CN219599392U (en) | Dismounting device for blind hole bearing outer ring | |
| CN207868953U (en) | The installing and dismounting special machine of motor rotor component | |
| CN109079711B (en) | Novel multifunctional broken bolt extractor | |
| CN220179237U (en) | Flange connection bolt dismounting device | |
| CN113770710B (en) | Lock nut dismounting device and method | |
| TWI629143B (en) | Vehicle bearing removing tool | |
| CN201115942Y (en) | Shaft joint dissembling special purpose tools | |
| CN111660249B (en) | Device and method for disassembling bolt for reaming hole | |
| CN115805556A (en) | Tool for disassembling rotor disc of aircraft engine | |
| CN115228556B (en) | Split crusher roller and rapid disassembly and installation method thereof | |
| JP6534916B2 (en) | How to remove the reamer bolt and reamer bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |