CN112706033B - Grinding device for production and processing of steam turbine blades - Google Patents
Grinding device for production and processing of steam turbine blades Download PDFInfo
- Publication number
- CN112706033B CN112706033B CN202011607476.3A CN202011607476A CN112706033B CN 112706033 B CN112706033 B CN 112706033B CN 202011607476 A CN202011607476 A CN 202011607476A CN 112706033 B CN112706033 B CN 112706033B
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- Prior art keywords
- pressing
- turbine blade
- gear
- clamping
- sliding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/006—Machines or devices using grinding or polishing belts; Accessories therefor for special purposes, e.g. for television tubes, car bumpers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
Abstract
The invention relates to the field of steam turbines, in particular to a grinding device for producing and processing a steam turbine blade, which comprises a bracket; the clamping mechanism is rotatably connected to the bracket and used for clamping the turbine blade; the turnover mechanism is arranged on the bracket and used for driving the clamping mechanism to rotate so as to drive the turbine blade clamped by the clamping mechanism to turn over; the grinding mechanism is arranged beside the bracket, is positioned at the top of the clamping mechanism and is used for grinding and processing the turbine blade clamped by the clamping mechanism; the displacement mechanism is arranged beside the support, and an output shaft of the displacement mechanism is in transmission connection with the molded line determining mechanism.
Description
Technical Field
The invention relates to the field of steam turbines, in particular to a grinding device for production and processing of a steam turbine blade.
Background
The blade is one of the most critical parts of the steam turbine, and steam does work through the through-flow parts of the movable and static blades. In the operation process of the steam turbine unit, the working condition of the blades is relatively responsible for continuously being eroded and excited by steam flow, when the natural vibration frequency of the blades in the assembly constraint state is integral multiples of the external excitation frequency, the blades can resonate to generate large alternating stress, the blades are easily broken, and safety accidents are caused. In view of the importance of the blades, much research has been carried out on the dynamic and static characteristics of the blades at present, and the dynamic frequency of the whole-stage blades is generally directly influenced on a steam turbine unit, but in practice, the static frequency of a single blade must be strictly controlled in the manufacturing process of the blades, and the static frequency directly influences the dynamic frequency, wherein the main influencing parameters are the rotating speed of the blades and the dynamic frequency coefficient of the blades, and the dynamic frequency coefficient has a direct relation with the average diameter of the blades, the included angle between the maximum inertia main shaft of the blade profile and the plane of the impeller and the blade height. The geometric dimension of the blade is mainly controlled in blade processing, so that the static frequency is indirectly guaranteed, and in practice, more specific analysis should be performed on blades with different structures.
With the rapid development of the steam turbine industry, the workload of repairing, polishing and milling the steam turbine blade after surfacing is more and more large. The polishing and milling field is repaired after the existing turbine blade is built-up welded, the most common polishing and milling mode is manual polishing and manual milling, and the polishing and milling mode is not only poor in precision, large in workload and extremely low in working efficiency due to the fact that the whole process is directly controlled manually, but also has the condition of indirectly harming human health.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a grinding device for production and processing of steam turbine blades, the technical scheme solves the problems of low efficiency and low safety of manual grinding, a grinding driver of the grinding device can drive a grinding belt to rotate when in work, the grinding belt grinds the blades, and a tensioning assembly and a position adjusting assembly arranged on a grinding mechanism can enable a transmission belt to be always kept in a tensioning state so as to facilitate grinding.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a grinding device for production and processing of a turbine blade, which comprises:
a support;
the clamping mechanism is rotatably connected to the bracket and used for clamping the turbine blade;
the turnover mechanism is arranged on the bracket and used for driving the clamping mechanism to rotate so as to drive the turbine blade clamped by the clamping mechanism to turn over;
the grinding mechanism is arranged beside the bracket, is positioned at the top of the clamping mechanism and is used for grinding and processing the turbine blade clamped by the clamping mechanism;
and the displacement mechanism is arranged at the side of the bracket, the output shaft of the displacement mechanism is in transmission connection with the molded line determining mechanism, and the displacement mechanism is used for driving the molded line determining mechanism to move to the side of the turbine blade when the turbine blade is turned over so as to avoid the turbine blade in the turning process.
Optionally, tilting mechanism includes motor mount pad, upset driving motor, first gear, second gear, pivot, drive assembly and pinch roller, the motor mount pad is installed on the support, install on the motor mount pad upset driving motor, upset driving motor's output shaft transmission is connected with first gear, first gear are connected with the support rotation, and the side of first gear is equipped with the second gear, second gear endotheca are equipped with the pivot, the pivot is connected with the support rotation, second gear and first gear engagement, and the pivot is passed through the drive assembly transmission is connected with fixture rotates on the support and is connected with the pinch roller, and the pinch roller offsets with drive assembly.
Optionally, the transmission assembly comprises a transmission belt and a turntable, the transmission belt is sleeved on the rotating shaft and the turntable, and when the rotating shaft rotates, the rotating shaft drives the turntable to rotate synchronously through the transmission belt.
Optionally, the transmission belt sets up to many, and is provided with the determining deviation between the mutual parallel arrangement of many transmission belt, and one side cover of transmission belt is established on the carousel, is equipped with the protruding dish that the radial outside extension of a plurality of spinning shafts that the interval equals sets up in the pivot, be equipped with the draw-in groove that supplies transmission belt opposite side card to go into between the protruding dish, pinch roller and all transmission belt's same position department looks butt.
Optionally, the clamping mechanism comprises a connecting shaft, a gear disc, a tooth pattern, a third gear, a driven rotating shaft, a supporting assembly, a pressing assembly, a blade root pressing sleeve and a pressing driving piece, the connecting axle is coaxial to be fixed on the carousel, and coaxial connection has on the connecting axle the toothed disc, and the edge of one of them terminal surface of toothed disc is equipped with the round insection, the lateral part of insection is equipped with the supporting component rotates on the supporting component and is connected with driven spindle, the coaxial fixedly connected with of one of them end of driven spindle third gear, third gear and insection meshing, driven spindle's the other end is fixed with the blade root that is used for centre gripping steam turbine blade the blade root compresses tightly the cover, fixedly connected with on the driven spindle compress tightly the subassembly, the output shaft transmission that compresses tightly the subassembly is connected with compress tightly the driving piece, compress tightly the driving piece and be used for adjusting the blade root and compress tightly the centre gripping degree of cover.
Optionally, the compressing assembly comprises a mounting base and a compressing driving cylinder, the compressing driving part comprises a linkage rod, a pressing plate, a sliding groove and a second hinged shaft, the mounting base is fixed on a driven rotating shaft and is provided with the compressing driving cylinder, an output shaft of the compressing driving cylinder is connected with the pressing plate in a transmission manner, the pressing plate is arranged on the end faces of two ends, which are arranged relatively, of the sliding groove, two second hinged shafts are symmetrically arranged in the sliding groove, one of the second hinged shafts is hinged to one of the linkage rod, one end of the linkage rod is hinged to the second hinged shaft, the other end of the linkage rod is hinged to a first hinged shaft arranged on a blade root compressing sleeve, and the two first hinged shafts are symmetrically arranged on the end faces of two ends, which are arranged relatively, of the compressing sleeve.
Optionally, the blade root pressing sleeve is flat, a notch is formed in the blade root pressing sleeve, and first hinge shafts are arranged at positions close to two sides of the notch.
Optionally, the supporting component includes two-way lead screw slip table, pedestal, bracing piece, centre gripping cover and rotatory endotheca, and the side of support is equipped with two-way lead screw slip table, sliding connection has two on the two-way lead screw slip table pedestal, pedestal symmetry set up on two-way lead screw slip table, all are equipped with one on every pedestal the bracing piece, the one end and the pedestal of bracing piece are connected, and the other end of bracing piece is equipped with the centre gripping cover is equipped with the cross-section and is the semicircular centre gripping arc mouth on the centre gripping cover, be equipped with on the inner wall of centre gripping arc mouth rotatory endotheca, two rotatory endotheca cooperate with centre gripping driven rotating shaft.
Optionally, the polishing mechanism includes a first mounting frame, a second mounting frame, a sliding plate, a sliding rail, a first guide wheel, a position adjusting cylinder, a tensioning assembly, a polishing belt and a polishing driver, the first mounting frame is erected on the output shaft of the displacement mechanism, the second mounting frame is fixed on the first mounting frame, the sliding plate is connected to the second mounting frame in a sliding manner, the position adjusting cylinder is arranged on the second mounting frame and used for driving the sliding plate to slide on the second mounting frame, the sliding plate is arranged on the second mounting frame and used for sliding on the sliding rail, the first guide wheel is arranged on the sliding rail, the polishing driver is arranged on the first mounting frame, the polishing belt is wound between the first guide wheel and the polishing driver, the tensioning assembly is arranged on the second mounting frame, and the tensioning assembly is used for tensioning the polishing belt.
Optionally, the tensioning assembly comprises a tensioning driving cylinder and a tensioning wheel, the tensioning driving cylinder is fixed on the second mounting frame, an output shaft of the tensioning driving cylinder is connected with the tensioning wheel, the sliding plate is provided with a first mounting seat, the first mounting seat is rotatably connected with an auxiliary guide wheel, a second mounting seat is arranged on the side portion of the first mounting seat, the second mounting seat is rotatably connected with a first guide wheel, and the auxiliary guide wheel, the first guide wheel and the tensioning wheel all abut against the polishing belt.
Compared with the prior art, the invention has the beneficial effects that:
through fixture centre gripping steam turbine blade to order about steam turbine blade and carry out the turn-over, start the driver of polishing, just can begin to carry out the work of polishing, the driver of polishing at the during operation, can drive the area of polishing and rotate, the area of polishing is polished the processing to the blade, and tensioning subassembly and the position control subassembly that sets up on the grinding mechanism can be so that the drive belt remains throughout at the tensioning state, are convenient for polish.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a first schematic structural diagram of a turnover mechanism according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is a schematic structural diagram of a turning mechanism according to an embodiment of the present invention;
FIG. 5 is a third schematic structural view of a turnover mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic view of the structure of the clamping mechanism according to an embodiment of the present invention;
FIG. 7 is an enlarged schematic view at B of FIG. 6;
FIG. 8 is a first schematic diagram of a grinding mechanism according to an embodiment of the present invention;
FIG. 9 is a second schematic structural view of a grinding mechanism according to an embodiment of the present invention;
FIG. 10 is a third schematic view of a grinding mechanism according to an embodiment of the present invention;
fig. 11 is a fourth schematic structural view of a grinding mechanism according to an embodiment of the present invention.
The reference numbers in the figures are:
1-a scaffold;
2-turning over mechanism; 21-a motor mounting seat; 22-a tumble drive motor; 23-a first gear; 24-a second gear; 25-a rotating shaft; 251-a convex disc; 252-a card slot; 26-a transmission assembly; 261-a drive belt; 262-a turntable; 27-a tensioning wheel; 271-electric push rod 271; 272-a tensioning mount;
3-a clamping mechanism; 31-a connecting shaft; 32-gear plate; 33-insection; 34-a third gear; 35-driven rotating shaft; 36-a support assembly; 361-bidirectional screw rod sliding table; 362-slide stage base; 363-support bar; 364-a clamping sleeve; 365-rotating the inner liner; 37-a hold down assembly; 371-mounting base; 372-pressing a driving cylinder; 38-root sleeve; 381-gap; 382-a first articulated shaft; 39-a compression drive; 391-linkage bar; 392-a platen; 393-a chute; 394-a second hinge axis;
4-a displacement mechanism;
5-a polishing mechanism; 51-a first mounting frame; 52-a second mounting frame; 521-a slide hole; 53-sliding plate; 531-first mount; 532-auxiliary guide wheel; 533-second mount; 54-a slide rail; 55-a first guide wheel; 56-position adjusting cylinder; 57-a tensioning assembly; 571-tensioning driving cylinder; 572-tensioning wheel; 58-grinding band; 59-grinding drive.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like 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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As a preferred embodiment of the present invention, there is provided a grinding device for a turbine blade production process, comprising:
a support;
the clamping mechanism is rotatably connected to the bracket and used for clamping the turbine blade;
the turnover mechanism is arranged on the bracket and used for driving the clamping mechanism to rotate so as to drive the turbine blade clamped by the clamping mechanism to turn over;
the grinding mechanism is arranged beside the bracket, is positioned at the top of the clamping mechanism and is used for grinding and processing the turbine blade clamped by the clamping mechanism;
and the displacement mechanism is arranged at the side of the bracket, the output shaft of the displacement mechanism is in transmission connection with the molded line determining mechanism, and the displacement mechanism is used for driving the molded line determining mechanism to move to the side of the turbine blade when the turbine blade is turned over so as to avoid the turbine blade in the turning process.
This grinding device's design through fixture centre gripping steam turbine blade to order about the steam turbine blade and carry out the turn-over, start the driver of polishing, just can begin to carry out the work of polishing, the driver of polishing at the during operation, can drive the area of polishing and rotate, the area of polishing is polished the processing to the blade, the last tensioning subassembly and the position control subassembly that sets up of polishing mechanism can be so that the drive belt remains throughout at the tensioning state, are convenient for polish.
The following description will discuss a preferred embodiment of the polishing apparatus according to the present invention with reference to the accompanying drawings.
Referring to fig. 1, the clamping apparatus includes:
the support 1 is erected or erected on a plane, and a reinforcing plate can be arranged on the support 1, so that the support 1 can be stably positioned on the plane.
And the clamping mechanism 3 is rotatably connected to the support 1 and used for clamping the turbine blade.
And the turnover mechanism 2 is arranged on the support 1 and used for driving the clamping mechanism 3 to rotate so as to drive the turbine blade clamped by the clamping mechanism 3 to turn over.
And the grinding mechanism 5 is arranged beside the support 1, is positioned at the top of the clamping mechanism 3 and is used for grinding and processing the turbine blade clamped by the clamping mechanism 3.
The displacement mechanism 4 is arranged at the side of the bracket 1, the output shaft of the displacement mechanism 4 is in transmission connection with the molded line determining mechanism, the displacement mechanism 4 is used for driving the molded line determining mechanism to move to the side of the turbine blade when the turbine blade is turned over so as to avoid the turbine blade in the turning process, and in the embodiment, the displacement mechanism 4 can be a screw rod sliding seat.
Referring to fig. 2, 3, 4 and 5, the turnover mechanism 2 includes a motor mounting base 21, a turnover driving motor 22, a first gear 23, a second gear 24, a rotating shaft 25 and a transmission assembly 26, the motor mounting base 21 is mounted on the support 1, the turnover driving motor 22 is mounted on the motor mounting base 21, an output shaft of the turnover driving motor 22 is in transmission connection with the first gear 23, the first gear 23 is in rotational connection with the support 1, the second gear 24 is disposed beside the first gear 23, the rotating shaft 25 is sleeved in the second gear 24, the rotating shaft 25 is in rotational connection with the support 1, the second gear 24 is engaged with the first gear 23, and the rotating shaft 25 is in transmission connection with the clamping mechanism 3 through the transmission assembly 26.
When the overturning driving motor 22 installed on the motor installation seat 21 works, the overturning driving motor 22 can drive the first gear 23 to rotate, the second gear 24 and the rotating shaft 25 sleeved in the second gear 24 can be driven to rotate in the rotating process of the first gear 23, then the rotating shaft 25 can drive the clamping mechanism 3 to rotate through the transmission assembly 26 in the rotating process, the overturning of the steam turbine blade clamped by the clamping mechanism 3 is realized, and in the grinding device, the grinding treatment can be carried out on each position of the blade.
Referring to fig. 3 and 4, the transmission assembly 26 includes a transmission belt 261 and a turntable 262, the transmission belt 261 is sleeved on the rotation shaft 25 and the turntable 262, when the rotation shaft 25 rotates, the rotation shaft 25 drives the turntable 262 to rotate synchronously through the transmission belt 261, in this embodiment, the transmission belt 261 is provided in a plurality of pieces, the plurality of pieces of transmission belt 261 are arranged in parallel and have a certain distance, one side of the transmission belt 261 is sleeved on the turntable 262, the rotation shaft 25 is provided with a plurality of protruding discs 251 which are arranged in an extending manner radially outward from the rotation shaft 25 and have the same distance, and a slot 252 for the other side of the transmission belt 261 to be inserted is formed between the protruding discs 251.
Referring to fig. 3 and 4, the turnover mechanism 2 further includes a pressing wheel 27, the pressing wheel 27 includes a tension driving electric push rod 271 and a tension seat 272, the tension driving electric push rod 271 is fixed on the support 1, an output shaft of the tension driving electric push rod 271 is in transmission connection with the tension seat 272, the tension seat 272 is in transmission connection with a tension wheel, and the tension wheel abuts against the same position of all the driving belts 261.
In order to ensure that the rotating shaft 25 can drive the rotating disc 262 to rotate synchronously with the rotation of the rotating shaft 25 through the driving belt 261, a pressing wheel 27 is arranged in the grinding device to maintain the tension of the driving belt 261.
Referring to fig. 4, 5, 6 and 7, the clamping mechanism 3 includes a connecting shaft 31, a gear plate 32, a tooth pattern 33, a third gear 34, a driven rotating shaft 35, a supporting component 36, a pressing component 37, a blade root pressing sleeve 38 and a pressing driving component 39, the connecting shaft 31 is coaxially fixed on the rotary plate 262, the connecting shaft 31 is coaxially connected with the gear plate 32, the edge of one end surface of the gear plate 32 is provided with a circle of tooth pattern 33, the side of the tooth pattern 33 is provided with the supporting component 36, the supporting component 36 is rotatably connected with the driven rotating shaft 35, one end of the driven rotating shaft 35 is coaxially and fixedly connected with the third gear 34, the third gear 34 is meshed with the tooth pattern 33, the other end of the driven rotating shaft 35 is fixedly provided with the blade root pressing sleeve 38 for clamping the blade root of the turbine blade, the driven rotating shaft 35 is fixedly connected with the pressing component 37, an output shaft of the pressing component 37 is in transmission connection with the pressing driving component 39, the compression drive 39 is used to adjust the degree of grip of the blade root compression sleeve 38.
The supporting component 36 includes a bidirectional screw rod sliding table 361, a sliding table base 362, a supporting rod 363, a clamping sleeve 364 and a rotary inner bushing 365, the side of the bracket 1 is provided with the bidirectional screw rod sliding table 361, the bidirectional screw rod sliding table 361 is connected with the two sliding table bases 362 in a sliding manner, the sliding table bases 362 are symmetrically arranged on the bidirectional screw rod sliding table 361, each sliding table base 362 is provided with one supporting rod 363, one end of each supporting rod 363 is connected with the corresponding sliding table base 362, the other end of each supporting rod 363 is provided with the clamping sleeve 364, each clamping sleeve 364 is provided with a clamping arc with a semicircular section, the inner wall of each clamping arc is provided with the rotary inner bushing 365, and the two rotary inner bushings 365 are matched with the clamping driven rotating shaft 35.
When the rotary plate 262 rotates, the rotary plate 262 can drive the connecting shaft 31 and the gear plate 32 installed on the connecting shaft 31 to synchronously rotate, when the gear plate 32 rotates, the insections 33 on the gear plate 32 can drive the third gear 34 and the driven rotating shaft 35 used for assembling the third gear 34 to rotate, because the other end of the driven rotating shaft 35 is fixed with the blade root pressing sleeve 38 used for clamping the blade root of the turbine blade, when the blade root of the turbine blade is installed on the blade root pressing sleeve 38, and after the blade root is clamped through the pressing component 37, the blade root pressing sleeve 38 rotates along with the rotation of the driven rotating shaft 35, and then the blade on the blade root pressing sleeve 38 can be driven to turn over.
Please refer to fig. 7, the pressing assembly 37 includes a mounting base 371 and a pressing driving cylinder 372, the pressing driving member 39 includes a linkage rod 391, a pressing plate 392, a sliding groove 393 and a second hinge shaft 394, the mounting base 371 is fixed on the driven rotating shaft 35, the pressing driving cylinder 372 is mounted on the mounting base 371, an output shaft of the pressing driving cylinder 372 is in transmission connection with the pressing plate 392, the sliding grooves 393 are respectively disposed on two end faces of the pressing plate 392, two second hinge shafts 394 symmetrically disposed are slidably connected in the sliding grooves 393, the linkage rod 391 is hinged on each of the second hinge shafts 394, one end of the linkage rod 391 is hinged to the second hinge shaft 394, the other end of the linkage rod 391 is hinged to a first hinge shaft 382 disposed on the blade root pressing sleeve 38, and two first hinge shafts 382 are symmetrically disposed on two end faces of the blade root pressing sleeve 38. The blade root pressing sleeve 38 is flat, a notch 381 is formed in the blade root pressing sleeve 38, and first hinge shafts 382 are arranged at positions close to two sides of the notch 381.
The mounting base 371 can be rotatory along with the rotation of driven rotating shaft 35 in step, and the pressure that installs on mounting base 371 drives actuating cylinder 372 and can orders about clamp plate 392 and press or lift up downwards, and at this in-process, second articulated shaft 394 can slide in spout 393 to drive the breach 381 that the blade root compressed tightly the cover 38 through the gangbar 391 and enlarge or reduce, and then adjust the blade root and compress tightly the degree of centre gripping of cover 38 to the blade root.
Referring to fig. 8 to 11, the grinding mechanism 5 includes a first mounting frame 51, a second mounting frame 52, a sliding plate 53, a sliding rail 54, first leading wheel 55, position control cylinder 56, tensioning component 57, polishing area 58 and polishing driver 59, first mounting bracket 51 sets up on the output shaft of displacement mechanism 4, be fixed with second mounting bracket 52 on first mounting bracket 51, sliding connection has sliding plate 53 on second mounting bracket 52, be equipped with on the second mounting bracket 52 and be used for driving sliding plate 53 gliding position control cylinder 56 on second mounting bracket 52, set up on the second mounting bracket 52 and supply sliding plate 53 gliding slide rail 54, be equipped with first leading wheel 55 on the slide rail 54, be equipped with polishing driver 59 on first mounting bracket 51, twine polishing area 58 between first leading wheel 55 and the polishing driver 529, be equipped with tensioning component 57 on the second mounting bracket 52, tensioning component 57 is used for tensioning polishing area 58.
The tensioning assembly 57 comprises a tensioning driving cylinder 571 and a pressing wheel 572, the tensioning driving cylinder 571 is fixed on the second mounting frame 52, an output shaft of the tensioning driving cylinder 571 is connected with the pressing wheel 572, the sliding plate 53 is provided with a first mounting seat 531, the first mounting seat 531 is rotatably connected with an auxiliary guide wheel 532, the side part of the first mounting seat 531 is provided with a second mounting seat 533, the second mounting seat 533 is rotatably connected with a first guide wheel 55, and the auxiliary guide wheel 532, the first guide wheel 55 and the pressing wheel 572 are all abutted to the polishing belt 58.
The polishing driver 59 is started to start polishing work, the polishing driver 59 drives the polishing belt 58 to rotate when working, and the polishing belt 58 polishes the blades. The sliding plate 53 is adjusted relative to the second mounting frame 52 by the position adjusting cylinder 56, so that the sliding plate 53 slides in a lifting manner relative to the sliding hole 521, the sliding rail 54 guides the sliding plate 23 in the process, the sliding plate 53 is rotatably connected with the auxiliary guide wheel 532 and the first guide wheel 55 by the first mounting seat 531 and the second mounting seat 533, respectively, and the sanding belt 58 is wound on the output shaft of the sanding driver 59, the auxiliary guide wheel 532 and the first guide wheel 55. Since the position of the sliding plate 53 relative to the second mounting bracket 52 is adjustable and changeable, in order to ensure the tension of the sanding belt 58, and to enable the sanding driver 59 to simultaneously drive the sanding belt 58 to rotate during operation, a tension assembly 57 capable of ensuring the tension of the sanding belt 58 in any state is disposed on the second mounting bracket 52, and the tension driving cylinder 571 drives the pressing wheel 572 to always abut against the sanding belt 58 during operation.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a steam turbine blade production processing grinding device which characterized in that includes:
a support (1);
the clamping mechanism (3) is rotationally connected to the bracket (1) and is used for clamping the turbine blade;
the turnover mechanism (2) is arranged on the bracket (1) and used for driving the clamping mechanism (3) to rotate so as to drive the turbine blade clamped by the clamping mechanism (3) to turn over;
the grinding mechanism (5) is arranged beside the bracket (1), is positioned at the top of the clamping mechanism (3) and is used for grinding and processing the turbine blade clamped by the clamping mechanism (3);
the displacement mechanism (4) is arranged at the side of the bracket (1), an output shaft of the displacement mechanism (4) is in transmission connection with a molded line determining mechanism, and the displacement mechanism (4) is used for driving the molded line determining mechanism to move to the side of the turbine blade when the turbine blade is turned so as to avoid the turbine blade in the turning process;
the clamping mechanism (3) comprises a driven rotating shaft (35), a pressing assembly (37), a blade root pressing sleeve (38) and a pressing driving piece (39), the tail end of the driven rotating shaft (35) is fixedly provided with the blade root pressing sleeve (38) and the pressing assembly (37) which are used for clamping the blade root of the turbine blade, an output shaft of the pressing assembly (37) is in transmission connection with the pressing driving piece (39), and the pressing driving piece (39) is used for adjusting the clamping degree of the blade root pressing sleeve (38);
the blade root pressing sleeve (38) is provided with a notch (381), and the pressing driving piece (39) drives the notch (381) to be opened and closed to clamp the blade root of the turbine blade.
2. The steam turbine blade production processing grinding device according to claim 1, wherein the turning mechanism (2) comprises a motor mounting seat (21), a turning driving motor (22), a first gear (23), a second gear (24), a rotating shaft (25), a transmission assembly (26) and a pressing wheel (27), the motor mounting seat (21) is mounted on the support (1), the turning driving motor (22) is mounted on the motor mounting seat (21), an output shaft of the turning driving motor (22) is in transmission connection with the first gear (23), the first gear (23) is in rotational connection with the support (1), the second gear (24) is arranged beside the first gear (23), the rotating shaft (25) is sleeved in the second gear (24), the rotating shaft (25) is in rotational connection with the support (1), and the second gear (24) is meshed with the first gear (23), the rotating shaft (25) is connected with the clamping mechanism (3) through the transmission component (26), the support (1) is connected with the pressing wheel (27) in a rotating mode, and the pressing wheel (27) is abutted to the transmission component (26).
3. The grinding device for the steam turbine blade production and processing according to claim 2, wherein the transmission assembly (26) comprises a transmission belt (261) and a rotating disc (262), the transmission belt (261) is sleeved on the rotating shaft (25) and the rotating disc (262), and when the rotating shaft (25) rotates, the rotating shaft (25) drives the rotating disc (262) to rotate synchronously through the transmission belt (261).
4. The grinding device for the turbine blade production and processing according to claim 3, wherein the plurality of transmission belts (261) are arranged, the plurality of transmission belts (261) are arranged in parallel and are provided with a certain distance, one side of each transmission belt (261) is sleeved on the corresponding rotary table (262), the rotary shaft (25) is provided with a plurality of convex discs (251) which are arranged in an extending mode from the rotary shaft (25) radially outwards and have the same distance, a clamping groove (252) for clamping the other side of each transmission belt (261) is formed between the convex discs (251), and the pressing wheel (27) abuts against the same position of all the transmission belts (261).
5. The steam turbine blade production processing grinding device as claimed in claim 4, wherein the clamping mechanism (3) comprises a connecting shaft (31), a gear disc (32), insections (33), a third gear (34) and a supporting component (36), the connecting shaft (31) is coaxially fixed on the rotary disc (262), the gear disc (32) is coaxially connected to the connecting shaft (31), a circle of insections (33) is arranged at the edge of one end face of the gear disc (32), the supporting component (36) is arranged at the side portion of the insections (33), the driven rotating shaft (35) is rotatably connected to the supporting component (36), the third gear (34) is coaxially and fixedly connected to one end of the driven rotating shaft (35), and the third gear (34) is meshed with the insections (33).
6. The steam turbine blade production processing grinding device according to claim 5, wherein the pressing assembly (37) comprises a mounting base (371) and a pressing driving cylinder (372), the pressing driving member (39) comprises a linkage rod (391), a pressing plate (392), a sliding groove (393) and second hinge shafts (394), the mounting base (371) is fixed on the driven rotating shaft (35), the pressing driving cylinder (372) is mounted on the mounting base (371), an output shaft of the pressing driving cylinder (372) is in transmission connection with the pressing plate (392), the sliding grooves (393) are respectively formed in the end faces of the two opposite ends of the pressing plate (392), the two second hinge shafts (394) which are symmetrically arranged are in sliding connection in the sliding groove (393), the linkage rod (391) is respectively hinged on each second hinge shaft (394), one end of each linkage rod (391) is hinged to each second hinge shaft (394), the other end of the linkage rod (391) is hinged to a first hinged shaft (382) arranged on the blade root pressing sleeve (38), and two first hinged shafts (382) are symmetrically arranged on the end faces of two opposite ends of the blade root pressing sleeve (38).
7. The grinding device for producing turbine blades according to claim 6, wherein the blade root pressing sleeve (38) is provided in a flat shape.
8. The grinding device for the production and processing of the steam turbine blade as claimed in claim 7, wherein the supporting assembly (36) comprises a bidirectional screw rod sliding table (361), a sliding table base (362), supporting rods (363), a clamping sleeve (364) and a rotary inner bushing (365), the bidirectional screw rod sliding table (361) is arranged beside the support (1), the two sliding table bases (362) are connected to the bidirectional screw rod sliding table (361) in a sliding manner, the sliding table bases (362) are symmetrically arranged on the bidirectional screw rod sliding table (361), each sliding table base (362) is provided with one supporting rod (363), one end of each supporting rod (363) is connected with the corresponding sliding table base (362), the other end of each supporting rod (363) is provided with the corresponding clamping sleeve (364), each clamping sleeve (364) is provided with a clamping arc opening with a semicircular cross section, and the rotary sleeve (365) is arranged on the inner wall of each clamping arc opening, the two rotating inner bushings (365) cooperate to hold the driven shaft (35).
9. The grinding device for the steam turbine blade production and processing according to claim 8, characterized in that the grinding mechanism (5) comprises a first mounting frame (51), a second mounting frame (52), a sliding plate (53), a sliding rail (54), a first guide wheel (55), a position adjusting cylinder (56), a tensioning assembly (57), a grinding belt (58) and a grinding driver (59), the first mounting frame (51) is erected on the output shaft of the displacement mechanism (4), the second mounting frame (52) is fixed on the first mounting frame (51), the sliding plate (53) is connected on the second mounting frame (52) in a sliding manner, the position adjusting cylinder (56) for driving the sliding plate (53) to slide on the second mounting frame (52) is arranged on the second mounting frame (52), the sliding rail (54) for the sliding plate (53) to slide is arranged on the second mounting frame (52), be equipped with on slide rail (54) first leading wheel (55), be equipped with on first mounting bracket (51) polish driver (59), it has to twine between first leading wheel (55) and the driver of polishing (59) polish area (58), be equipped with on second mounting bracket (52) tensioning subassembly (57), tensioning subassembly (57) are used for tensioning to polish area (58).
10. The steam turbine blade production processing grinding device as claimed in claim 9, wherein the tensioning assembly (57) comprises a tensioning driving cylinder (571) and a tensioning wheel (572), the tensioning driving cylinder (571) is fixed on the second mounting frame (52), the tensioning wheel (572) is connected to an output shaft of the tensioning driving cylinder (571), a first mounting seat (531) is arranged on the sliding plate (53), an auxiliary guide wheel (532) is rotatably connected to the first mounting seat (531), a second mounting seat (533) is arranged on a side portion of the first mounting seat (531), a first guide wheel (55) is rotatably connected to the second mounting seat (533), and the auxiliary guide wheel (532), the first guide wheel (55) and the tensioning wheel (572) are all abutted against the grinding belt (58).
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| CN202011607476.3A CN112706033B (en) | 2020-12-30 | 2020-12-30 | Grinding device for production and processing of steam turbine blades |
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| CN202011607476.3A CN112706033B (en) | 2020-12-30 | 2020-12-30 | Grinding device for production and processing of steam turbine blades |
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| CN112706033A CN112706033A (en) | 2021-04-27 |
| CN112706033B true CN112706033B (en) | 2022-04-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114193290A (en) * | 2021-12-20 | 2022-03-18 | 安徽中腾汽车零部件有限公司 | Brush motor disc polishing device |
| CN115338745B (en) * | 2022-08-08 | 2023-11-17 | 国网浙江省电力有限公司江山市供电公司 | Grinding device and grinding method for equipment for hydroelectric power generation |
| CN117564889B (en) * | 2024-01-15 | 2024-03-12 | 莱州润昇石油设备有限公司 | Submersible electric pump impeller polishing device |
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| CN112706033A (en) | 2021-04-27 |
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