CN114523156A - Thermocouple sleeve cutting machine for boiler temperature measurement - Google Patents
Thermocouple sleeve cutting machine for boiler temperature measurement Download PDFInfo
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- CN114523156A CN114523156A CN202210422177.5A CN202210422177A CN114523156A CN 114523156 A CN114523156 A CN 114523156A CN 202210422177 A CN202210422177 A CN 202210422177A CN 114523156 A CN114523156 A CN 114523156A
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- telescopic rod
- sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
- B23D57/0007—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 using saw wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention relates to the field of cutting machine tools, in particular to a thermocouple sleeve cutting machine for measuring the temperature of a boiler, which is used for cutting a sleeve and comprises a rack, a cutting assembly, a clamping assembly and a control assembly, wherein the clamping assembly is movably arranged on the rack along a first direction; the sleeve is arranged on the clamping assembly, the control assembly controls the clamping assembly to enable the sleeve to be located on one side of the cutting assembly in an initial state, the control assembly controls the clamping assembly to move along the first direction in a starting state, the sleeve and the cutting assembly interact to complete cutting, in the cutting process, the control assembly controls the moving speed of the clamping assembly to be firstly reduced and then increased, so that the contact area between the sleeve and the cutting assembly is firstly increased and then reduced, and then the contact area between the scroll saw and the sleeve is increased and then reduced, the moving speed of the sleeve is reduced when the contact area between the scroll saw and the sleeve is increased, and the cutting assembly is prevented from being damaged or the sleeve is prevented from being deformed; when the contact area of the wire saw and the sleeve is reduced, the moving speed of the sleeve is increased, and the cutting efficiency is improved.
Description
Technical Field
The invention relates to the field of cutting machine tools, in particular to a thermocouple sleeve cutting machine for measuring the temperature of a boiler.
Background
During the production and use of the thermocouple protection sleeve, a longer sleeve needs to be cut into a plurality of shorter sleeves, a cutting machine is needed in the process, and the feeding speed of most cutting machines in the prior art is constant. If chinese patent CN103752935A discloses a steel tube cutting machine, cutting machine includes the board, be provided with the clamping device who is used for the centre gripping steel pipe on the board, the cutting device who is used for cutting the steel pipe, the trimming device who is used for finishing the cutter, the cutting length adjusting device who is used for adjusting steel pipe cutting length and be arranged in removing the unloader to containing in the material frame with the steel pipe, during the use, can place the steel pipe on the board earlier, adjust the cutting length of steel pipe through measuring stick and footstock, then fix the steel pipe through clamp splice one, clamp splice two and layering, rethread cutter cuts the steel pipe, steel pipe accessible unloader that the cutting was accomplished carries to containing on the material frame, when the cutter appeared wearing and tearing, the cutter was repaired to the accessible dish emery wheel.
For another example, the chinese patent CN208178556U discloses a circular steel tube cutting machine, in which a piston rod drives a steel tube bracket to move up and down to interact with a saw blade, so as to cut the steel tube. However, when these two cutting machines cut a steel pipe, local deformation still occurs.
Disclosure of Invention
The inventor finds that the contact area between the thermowell and the saw blade is changed during the cutting process due to the fact that the thermowell is hollow and has a certain thickness, the cutting is carried out at a constant feeding speed, the thermowell is easily deformed due to the fact that the pressure of the saw blade on the thermowell is large when the contact area is large, and the cutting efficiency is reduced due to the fact that the feeding speed is slow when the contact area is small.
Therefore, the invention provides a thermocouple sleeve cutting machine for measuring the temperature of a boiler, which aims to solve the problem that the existing cutting machine tool is single in speed when cutting a sleeve, so that the local deformation or the efficiency is low.
The invention relates to a thermocouple sleeve cutting machine for measuring boiler temperature, which adopts the following technical scheme:
a thermocouple sleeve cutting machine for measuring the temperature of a boiler is used for cutting a sleeve and comprises a rack, a cutting assembly, a clamping assembly and a control assembly, wherein the clamping assembly is movably arranged on the rack along a first direction; the sleeve pipe is installed in the centre gripping subassembly, and control assembly controls centre gripping subassembly under initial condition and makes the sleeve pipe be located one side of cutting assembly, and control assembly controls centre gripping subassembly and moves along first direction under the starting condition for the cutting is accomplished in sleeve pipe and cutting assembly interact, and in cutting process, area of contact between cutting assembly and the sleeve pipe is S, and centre gripping subassembly' S translation rate is V, and control assembly makes and is the negative correlation between S and the V.
Furthermore, the clamping assembly comprises a plurality of clamping jaws, a retaining piece and a clamping seat, the clamping jaws are arranged on the clamping seat in a sliding mode along the radial direction of the sleeve, and each clamping jaw is connected with the clamping seat through a first elastic piece; the holding piece enables the plurality of clamping jaws to synchronously move inwards or outwards along the radial direction of the sleeve; the control assembly comprises a driving wheel, a first driving plate, a second driving plate, a push plate, a first telescopic rod and a second telescopic rod, the first driving plate, the second driving plate and the push plate are movably arranged on the rack along a second direction, and the driving wheel is matched with the first driving plate and the second driving plate; the first transmission plate is connected with one clamping jaw, moves towards the direction far away from the sleeve when the clamping jaw moves outwards along the radial direction of the sleeve, and drives the second transmission plate to move towards the direction close to the sleeve through the transmission wheel; the second transmission plate is connected with the push plate; the first telescopic rod and the second telescopic rod are positioned on one side, close to the clamping component, of the push plate, the two ends of the first telescopic rod are respectively a first end and a second end, and the two ends of the second telescopic rod are respectively a third end and a fourth end; the first end of the first telescopic rod is hinged with the third end of the second telescopic rod, the first end of the first telescopic rod and the third end of the second telescopic rod are both slidably mounted on the push plate along a first direction, the fourth end of the second telescopic rod is connected with the clamping seat, the first end of the first telescopic rod is positioned on one side, far away from the cutting assembly, of the second end of the first telescopic rod, a second elastic piece is arranged in the first telescopic rod, the second elastic piece limits the first telescopic rod to further contract when the control assembly is in an initial state, and the stiffness coefficient of the second elastic piece is greater than that of the first elastic piece; the sleeve pipe inserts between a plurality of clamping jaws and pushes away the clamping jaw and remove to keeping away from the sleeve pipe direction, first drive plate drives the push pedal through drive wheel and second drive plate under the drive of clamping jaw and removes to the mounted position to being close to the sleeve pipe direction, the push pedal promotes the first end of first telescopic link to rotate to keeping away from cutting assembly one side around the second end of first telescopic link when being close to the sleeve pipe direction removal, and then makes the second telescopic link drive the centre gripping subassembly and install in the sleeve pipe of centre gripping subassembly and remove to keeping away from cutting assembly direction.
The cutting assembly further comprises a wire saw which is arranged along a second direction and can move along the second direction to cut the sleeve, wherein the first direction is the radial direction of the sleeve, and the first direction is perpendicular to the second direction; the scroll saw cuts the sleeve when the sleeve moves along the clamping assembly in the first direction, the contact area of the scroll saw and the sleeve is increased firstly and then reduced when the scroll saw enters the sleeve to the collinear process of the diameters of the scroll saw and the sleeve, and the contact area of the scroll saw and the sleeve is increased firstly and then reduced when the scroll saw leaves the sleeve from the collinear position of the diameters of the sleeve.
Further, the control assembly further comprises a first driving piece, and the second end of the first telescopic rod is collinear with the wire saw; the second transmission plate is connected with the push plate through a third elastic piece, and the stiffness coefficient of the third elastic piece is larger than that of the second elastic piece; the first telescopic rod is driven by the first driving piece to swing around the second end of the first telescopic rod in a reciprocating mode within a preset range, the preset range is symmetrical about the wire saw, two limit positions of the first telescopic rod in the swing mode within the preset range are an initial position and a final position respectively, and the position of the first telescopic rod in the swing mode to be collinear with the wire saw is a middle position; in the process that the first driving piece drives the first telescopic rod to swing from the initial position to the middle position, the first telescopic rod is compressed to the limit length firstly, and then overcomes the elastic force of the third elastic piece under the driving of the first driving piece to further push the push plate to move towards the direction far away from the sleeve, so that the moving speed of the first end of the first telescopic rod along the first direction is reduced firstly and then increased; the first driving piece drives the first telescopic rod to swing from the middle position to the end position, the push plate returns to the installation position in the direction close to the sleeve pipe under the action of the third elastic piece, and the first telescopic rod extends under the action of the second elastic piece, so that the moving speed of the first end of the first telescopic rod in the first direction is firstly reduced and then increased.
Furthermore, the first driving part is a motor capable of rotating forward and backward, the second end of the first telescopic rod is connected with an output shaft of the motor, the second end of the first telescopic rod can freely rotate relative to the output shaft of the motor in the motor stop state, and the second end of the first telescopic rod and the output shaft of the motor synchronously rotate in the motor starting state.
Furthermore, the retaining piece comprises a retaining ring, a third telescopic rod and a linkage rod, the third telescopic rod is arranged along the third direction, the axis of the retaining ring is arranged along the third direction, the retaining ring is connected with the clamping seat through the third telescopic rod, and the third telescopic rod limits the inclination of the axis of the retaining ring; each clamping jaw is hinged with the retaining ring through one linkage rod, so that when one clamping jaw moves, the retaining ring is driven to move along the third direction through the linkage rod, and then other clamping jaws are driven to move synchronously.
Further, the transmission wheel is a gear, and the first transmission plate and the second transmission plate are toothed plates.
Furthermore, the cutting assembly also comprises a second driving part and two supporting wheels, wherein one supporting wheel is driven by the second driving part to rotate; the coping saw is the annular, and the coping saw twines in two supporting wheels, and the tight limit of coping saw all sets up along the second direction with the loose limit, and the tight limit of coping saw is located the sleeve pipe one side that is close to of the loose limit of coping saw, and the second end of first telescopic link and the tight limit collineation of coping saw.
Further, the second driving member is a motor.
Further, the first elastic part and the second elastic part are both compression springs, and the third elastic part is a tension spring.
The invention has the beneficial effects that: the thermocouple sleeve cutting machine for measuring the boiler temperature utilizes the clamping component to drive the sleeve to move so as to interact with the cutting component to complete the cutting of the sleeve, and utilizes the control component to enable the moving speed of the clamping component to be in a negative correlation relation with the moving speed of the contact area between the cutting component and the sleeve, so that the moving speed of the sleeve is matched with the contact area between a wire saw and the sleeve as much as possible, the moving speed of the sleeve is reduced when the contact area between the wire saw and the sleeve is increased, and the damage of the cutting component or the deformation of the sleeve are avoided; when the contact area of the wire saw and the sleeve is reduced, the moving speed of the sleeve is increased, and the cutting efficiency is improved.
Further, utilize the sleeve pipe top to push away the clamping jaw and remove and drive the push pedal and remove, and then drive centre gripping subassembly and sleeve pipe through the second telescopic link and remove along the first direction, and the sleeve pipe diameter is big more, and the push pedal is big more to the displacement that is close to sleeve pipe direction and removes, and the centre gripping subassembly is big more to the displacement of keeping away from cutting assembly direction removal with installing the sleeve pipe in centre gripping subassembly for the sleeve pipe is located one side of coping saw, avoids the sleeve pipe to influence the cutting of coping saw.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view showing the overall structure of an embodiment of a thermowell cutting machine for boiler temperature measurement according to the present invention;
FIG. 2 is a front view showing the overall structure of an embodiment of a thermowell cutting machine for boiler temperature measurement according to the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a sectional view taken along line B-B of FIG. 2;
FIG. 5 is a schematic view taken along line B-B of FIG. 2;
FIG. 6 is a schematic view showing the connection of a control assembly and a jaw in an embodiment of the thermowell cutting machine for boiler temperature measurement according to the present invention;
FIG. 7 is a schematic view showing the installation of a holder and a holder in an embodiment of the thermowell cutting machine for boiler temperature measurement according to the present invention;
FIG. 8 is a schematic view showing the structure of a frame in an embodiment of a thermowell cutting machine for boiler temperature measurement according to the present invention;
FIG. 9 is a schematic view of a first end path of a first telescoping rod in an activated state of a control assembly in an embodiment of the thermowell cutting machine for boiler temperature measurement according to the present invention;
in the figure: 100. a frame; 200. a cutting assembly; 210. a second driving member; 220. wire sawing; 230. a support wheel; 300. a control component; 310. a driving wheel; 320. a first driving member; 330. a second telescopic rod; 340. a first telescopic rod; 350. a second drive plate; 360. pushing the plate; 361. a first chute; 370. a first drive plate; 380. a second elastic member; 390. a third elastic member; 400. a clamping assembly; 410. a clamping jaw; 420. a clamping seat; 421. mounting grooves; 430. a holder; 431. a retaining ring; 432. a third telescopic rod; 433. a linkage rod; 440. a first elastic member; 500. a sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of a thermowell cutting machine for boiler temperature measurement according to the present invention, as shown in fig. 1 to 4, is used for cutting a thermowell 500, comprising a frame 100, a cutting assembly 200, a clamping assembly 400 and a control assembly 300,
the clamping assembly 400 is movably mounted to the frame 100 in a first direction;
the sleeve 500 is installed on the clamping assembly 400, the control assembly 300 controls the clamping assembly 400 in an initial state to enable the sleeve 500 to be located on one side of the cutting assembly 200, the control assembly 300 controls the clamping assembly 400 to move along a first direction in a starting state to enable the sleeve 500 to interact with the cutting assembly 200 to complete cutting, in a cutting process, the contact area between the cutting assembly 200 and the sleeve 500 is S, the moving speed of the clamping assembly 400 is V, the control assembly 300 enables the S and the V to be in a negative correlation relationship, specifically, the moving speed of the control assembly 300 controlling the clamping assembly 400 is firstly reduced and then increased and then decreased to adapt to the situation that the contact area between the sleeve 500 and the cutting assembly 200 is firstly increased and then decreased. Thereby, the moving speed of the sleeve 500 is matched with the contact area of the wire saw 220 and the sleeve 500 as much as possible, the moving speed of the sleeve 500 is reduced when the contact area of the wire saw 220 and the sleeve 500 is increased, the damage of the cutting assembly 200 or the deformation of the sleeve 500 is avoided, the moving speed of the sleeve 500 is increased when the contact area of the wire saw 220 and the sleeve 500 is reduced, and the cutting efficiency is improved. Wherein the first direction is the up-down direction in fig. 3.
In the present embodiment, as shown in fig. 1 to 8, the clamping assembly 400 includes a clamping jaw 410, a holder 430, and a clamping seat 420, and the clamping seat 420 is slidably mounted to the frame 100 along a first direction; a plurality of mounting grooves 421 arranged along the radial direction of the sleeve 500 are arranged in the clamping seat 420; the clamping jaw 410 is provided with a plurality of clamping jaws, each clamping jaw 410 is arranged in one mounting groove 421 in a sliding mode along the radial direction of the sleeve 500, and each clamping jaw 410 is connected with the clamping seat 420 through one first elastic piece 440; holder 430 causes plurality of jaws 410 to move radially inward or outward simultaneously along sleeve 500; the control assembly 300 comprises a driving wheel 310, a first driving plate 370, a second driving plate 350, a push plate 360, a first telescopic rod 340 and a second telescopic rod 330, wherein the first driving plate 370, the second driving plate 350 and the push plate 360 are movably mounted on the frame 100 along a second direction, and the driving wheel 310 is matched with the first driving plate 370 and the second driving plate 350; the first driving plate 370 is connected to one of the clamping jaws 410, and the first driving plate 370 moves away from the sleeve 500 when the clamping jaw 410 moves radially outward along the sleeve 500, and drives the second driving plate 350 to move close to the sleeve 500 through the driving wheel 310; the second driving plate 350 is connected with the push plate 360; a first sliding groove 361 arranged along a first direction is arranged on the push plate 360, the first telescopic rod 340 and the second telescopic rod 330 are positioned on one side of the push plate 360 close to the clamping assembly 400, two ends of the first telescopic rod 340 are respectively a first end and a second end, and two ends of the second telescopic rod 330 are respectively a third end and a fourth end; the first end of the first telescopic rod 340 is hinged to the third end of the second telescopic rod 330, the first end of the first telescopic rod 340 and the third end of the second telescopic rod 330 are both slidably mounted in the first sliding groove 361 along the first direction, the fourth end of the second telescopic rod 330 is connected with the clamping seat 420, the first end of the first telescopic rod 340 is located on the side, away from the cutting assembly 200, of the second end of the first telescopic rod 340, the second elastic member 380 is arranged in the first telescopic rod 340, the second elastic member 380 limits the first telescopic rod 340 to further contract when the control assembly 300 is in an initial state, and the stiffness coefficient of the second elastic member 380 is greater than the stiffness coefficient of the first elastic member 440; the sleeve 500 is inserted between the plurality of clamping jaws 410 and pushes the clamping jaws 410 to move in a direction away from the sleeve 500, the first driving plate 370 is driven by the clamping jaws 410 to drive the push plate 360 to move to a mounting position in a direction close to the sleeve 500 through the driving wheel 310 and the second driving plate 350, the push plate 360 pushes the first end of the first telescopic rod 340 to rotate around the second end of the first telescopic rod 340 in a direction close to the sleeve 500, and then the second telescopic rod 330 drives the clamping assembly 400 and the sleeve 500 mounted on the clamping assembly 400 to move in a direction away from the cutting assembly 200, so that the sleeve 500 is located on one side of the jigsaw 220, and the sleeve 500 is prevented from affecting cutting of the jigsaw 220. Wherein the second direction is a left-right direction in fig. 3.
In the present embodiment, as shown in fig. 1 to 3, the cutting assembly 200 includes a wire saw 220, the wire saw 220 is disposed along a second direction, and the wire saw 220 can move along the second direction to cut the sleeve 500, wherein the first direction is a radial direction of the sleeve 500, and the first direction is perpendicular to the second direction; wire saw 220 cuts sleeve 500 as sleeve 500 moves with clamp assembly 400 in a first direction, and wire saw 220 increases and then decreases in contact area with sleeve 500 from the point of entry into sleeve 500 to the point of wire saw 220 being collinear with the diameter of sleeve 500, and wire saw 220 increases and then decreases in contact area with sleeve 500 from the point of being collinear with the diameter of sleeve 500 to the point of exit from sleeve 500.
In this embodiment, as shown in fig. 4-6 and 9, the control assembly 300 further comprises a first driving member 320, a second end of the first extension rod 340 being collinear with the jigsaw 220; the second driving plate 350 is connected with the push plate 360 through a third elastic member 390, and the stiffness coefficient of the third elastic member 390 is greater than that of the second elastic member 380; the first telescopic rod 340 is driven by the first driving member 320 to swing around the second end of the first telescopic rod 340 in a reciprocating manner within a predetermined range, so as to drive the third end of the second telescopic rod 330 to move along the first direction, thereby driving the clamping assembly 400 and the cannula 500 to move along the first direction. The preset range is symmetrical about the wire saw 220, two limit positions of the first telescopic rod 340 swinging in the preset range are respectively a starting position and an ending position, and the position of the first telescopic rod 340 swinging to be collinear with the wire saw 220 is a middle position; in the process that the first driving member 320 drives the first telescopic rod 340 to swing from the initial position to the middle position, the first telescopic rod 340 is compressed to the limit length first, and then the first driving member 320 overcomes the elastic force of the third elastic member 390 to push the push plate 360 to move in the direction away from the sleeve 500, so that the moving speed of the first end of the first telescopic rod 340 in the first direction is increased after being reduced first; in the process that the first driving element 320 drives the first telescopic rod 340 to swing from the intermediate position to the end position, the push plate 360 returns to the installation position in the direction approaching the sleeve 500 under the action of the third elastic element 390, and then the first telescopic rod 340 extends under the action of the second elastic element 380, so that the moving speed of the first end of the first telescopic rod 340 along the first direction is firstly reduced and then increased.
In the present embodiment, the first driving member 320 is a motor capable of rotating in forward and reverse directions, and a time interval is set when the forward rotation and the reverse rotation are switched. The second end of the first telescopic rod 340 is connected to the output shaft of the first driving member 320, and the second end of the first telescopic rod 340 can rotate freely relative to the output shaft of the first driving member 320 when the first driving member 320 is in a shutdown state, and the second end of the first telescopic rod 340 and the output shaft of the first driving member 320 rotate synchronously when the first driving member 320 is in an startup state.
In the present embodiment, as shown in fig. 1, 6, and 7, the holder 430 includes a holding ring 431, a third telescopic rod 432, and a linkage rod 433, the third telescopic rod 432 is disposed along a third direction, an axis of the holding ring 431 is along the third direction, the holding ring 431 is connected with the holder 420 through the third telescopic rod 432, and the third telescopic rod 432 limits an axis of the holding ring 431 from tilting; each clamping jaw 410 is hinged with the retaining ring 431 through a linkage rod 433, so that when one clamping jaw 410 moves, the linkage rod 433 drives the retaining ring 431 to move in the third direction, and further drives other clamping jaws 410 to move synchronously. Wherein the third direction is the front-rear direction in fig. 3.
In this embodiment, the transmission wheel 310 is a gear, and the first transmission plate 370 and the second transmission plate 350 are both toothed plates.
In this embodiment, the cutting assembly 200 further includes a second driving member 210 and two supporting wheels 230, the second driving member 210 is fixedly mounted to the frame 100, the two supporting wheels 230 are rotatably mounted to the frame 100, and one of the supporting wheels 230 is driven by the second driving member 210 to rotate; wire saw 220 is the annular, and wire saw 220 twines in two supporting wheels 230, and the tight limit of wire saw 220 all sets up along the second direction with the loose limit, and the tight limit of wire saw 220 is located the sleeve pipe 500 one side that is close to of the loose limit of wire saw 220, and the second end of first telescopic link 340 and the tight limit collineation of wire saw 220.
In this embodiment, the second driving member 210 is a motor.
In this embodiment, the first elastic member 440 and the second elastic member 380 are both compression springs, and the third elastic member 390 is a tension spring.
When the cutting machine for the thermowell for measuring the boiler temperature is used, a sleeve 500 is inserted into a space defined by a plurality of clamping jaws 410, the clamping jaws 410 move in the direction far away from the circle center of the sleeve 500 under the pushing action of the sleeve 500, a first transmission plate 370 connected with the clamping jaws 410 moves in the direction far away from the sleeve 500 along with the clamping jaws 410, and drives a push plate 360 to move to the installation position in the direction close to the sleeve 500 through a transmission wheel 310 and a second transmission plate 350, the push plate 360 moves in the direction close to the sleeve 500 and simultaneously pushes a first end of a first telescopic rod 340 to rotate around a second end of the first telescopic rod 340 to the side far away from a cutting assembly 200, so that the second telescopic rod 330 drives a clamping assembly 400 and the sleeve 500 installed on the clamping assembly 400 to move in the direction far away from the cutting assembly 200; and the larger the diameter of the sleeve 500 is, the larger the displacement of the push plate 360 moving towards the direction close to the sleeve 500 is, and the larger the displacement of the clamping assembly 400 and the sleeve 500 mounted on the clamping assembly 400 moving away from the cutting assembly 200 is, so that the sleeve 500 is positioned at one side of the wire saw 220, and the sleeve 500 is prevented from influencing the cutting of the wire saw 220.
The first driving member 320 and the second driving member 210 are activated, and the second driving member 210 drives the supporting wheel 230 to rotate, so that the tight edge of the wire saw 220 wound on the supporting wheel 230 moves along the second direction. The first driving member 320 drives the first telescopic rod 340 to swing around the second end of the first telescopic rod 340 in a reciprocating manner within a preset range, and when the first telescopic rod 340 swings from the starting position to the ending position, the first end of the first telescopic rod 340 drives the third end of the second telescopic rod 330 to move downwards along the first direction, so as to drive the clamping assembly 400 and the sleeve 500 to move downwards along the first direction, so that the wire saw 220 passes through the sleeve 500 from bottom to top to complete cutting; when the first telescopic rod 340 swings from the ending position to the starting position, the first end of the first telescopic rod 340 drives the third end of the second telescopic rod 330 to move upwards along the first direction, so as to drive the clamping assembly 400 and the casing 500 to move upwards along the first direction, so that the jigsaw 220 passes through the casing 500 from top to bottom to complete the cutting. And the contact area of wire saw 220 and sleeve 500 increases and then decreases from the point where wire saw 220 enters sleeve 500 to the point where wire saw 220 is collinear with the diameter of sleeve 500, and the contact area of wire saw 220 and sleeve 500 increases and then decreases from the point where wire saw 220 is collinear with the diameter of sleeve 500 to the point where wire saw 220 exits sleeve 500.
In the process that the first telescopic rod 340 swings from the initial position to the intermediate position, as the clamping jaw 410 tightly supports the sleeve 500 and cannot further move towards the direction close to the center of the sleeve 500, the push plate 360 cannot further move towards the direction far away from the sleeve 500 through the transmission of the first transmission plate 370, the transmission wheel 310 and the second transmission plate 350, so that the first telescopic rod 340 is firstly compressed to the limit length, in the process, as the second elastic member 380 is compressed, and the larger the compression amount of the second elastic member 380 is, the larger the resistance of the first telescopic rod 340 is, and the speed of the first end of the first telescopic rod 340 moving downwards is gradually reduced; after the first telescopic rod 340 is compressed to the limit length, the first telescopic rod 340 overcomes the elastic force of the third elastic member 390 under the driving of the first driving member 320 to push the push plate 360 to move in the direction away from the sleeve 500, in this process, because the length of the first telescopic rod 340 does not change any more, the rotation path of the first end of the first telescopic rod 340 around the second end of the first telescopic rod 340 is an arc line, the component speed of the first end of the first telescopic rod 340 moving downwards is gradually increased, and further in the process of swinging the first telescopic rod 340 from the initial position to the intermediate position, the speed of the first end of the first telescopic rod 340 moving downwards in the first direction is firstly decreased and then increased, and the speed of the clamping assembly 400 and the sleeve 500 moving downwards in the first direction is firstly decreased and then increased through the second telescopic rod 330. In the process that the first driving member 320 drives the first telescopic rod 340 to swing from the intermediate position to the end position, the push plate 360 returns to the installation position in a direction approaching the cannula 500 under the action of the third elastic member 390, in the process, the first end of the first telescopic rod 340 rotates around the second end of the first telescopic rod 340 in an arc, and the component speed of the first end of the first telescopic rod 340 moving downwards is gradually reduced; the rear first telescopic rod 340 is extended by the second elastic member 380, in the process, the first end of the first telescopic rod 340 is accelerated to move downwards by the second elastic member 380, so that in the process of swinging the first telescopic rod 340 from the middle position to the end position, the downward moving speed of the first end of the first telescopic rod 340 along the first direction is firstly reduced and then increased, and the speed of the downward movement of the clamping assembly 400 and the sleeve 500 in the first direction is first decreased and then increased by the second telescopic rod 330, so that the speed of movement of sleeve 500 matches the contact area of wire saw 220 and sleeve 500 as closely as possible, the moving speed of the sleeve 500 is reduced when the contact area of the wire saw 220 and the sleeve 500 is increased, damage to the cutting assembly 200 or deformation of the sleeve 500 is prevented, the moving speed of the sleeve 500 is increased when the contact area of the wire saw 220 and the sleeve 500 is reduced, and the cutting efficiency is improved. Conversely, in the process that the first telescopic rod 340 swings back to the middle position from the end position, the first telescopic rod 340 is compressed to the limit length, and then the first telescopic rod is driven by the first driving member 320 to overcome the elastic force of the third elastic member 390 to push the push plate 360 to move in the direction away from the sleeve 500, so that the moving speed of the first end of the first telescopic rod 340 along the first direction is reduced and then increased, and further the moving speed of the clamping assembly 400 and the sleeve 500 along the first direction is reduced and then increased through the second telescopic rod 330; in the process that the first telescopic rod 340 swings from the middle position to the initial position, the push plate 360 returns to the installation position in the direction close to the sleeve 500 under the action of the third elastic member 390, and then the first telescopic rod 340 extends under the action of the second elastic member 380, so that the speed of the first end of the first telescopic rod 340 moving upwards along the first direction first decreases and then increases, and then the speed of the clamping assembly 400 and the sleeve 500 moving upwards along the first direction through the second telescopic rod 330 first decreases and then increases. The path of the first extension rod 340 swinging from the starting position to the ending position is shown in fig. 9.
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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a boiler temperature is thermowell cutting machine for measurement for cutting the sleeve pipe, its characterized in that: the cutting machine comprises a rack, a cutting assembly, a clamping assembly and a control assembly, wherein the clamping assembly is movably arranged on the rack along a first direction; the sleeve pipe is installed in the centre gripping subassembly, and control assembly controls the centre gripping subassembly under initial condition and makes the sleeve pipe be located one side of cutting assembly, and control assembly controls the centre gripping subassembly and moves along first direction under the start-up state for the cutting is accomplished in sleeve pipe and cutting assembly interact, and in cutting process, area of contact between cutting assembly and the sleeve pipe is S, and the translation rate of centre gripping subassembly is V, and control assembly makes and is the negative correlation between S and the V.
2. The thermowell cutting machine for boiler temperature measurement according to claim 1, characterized in that: the clamping assembly comprises a plurality of clamping jaws, a retaining piece and a clamping seat, the clamping jaws are arranged on the clamping seat in a sliding mode along the radial direction of the sleeve, and each clamping jaw is connected with the clamping seat through a first elastic piece; the holding piece enables the plurality of clamping jaws to synchronously move inwards or outwards along the radial direction of the sleeve; the control assembly comprises a driving wheel, a first driving plate, a second driving plate, a push plate, a first telescopic rod and a second telescopic rod, the first driving plate, the second driving plate and the push plate are movably arranged on the rack along a second direction, and the driving wheel is matched with the first driving plate and the second driving plate; the first transmission plate is connected with one clamping jaw, moves towards the direction far away from the sleeve when the clamping jaw moves outwards along the radial direction of the sleeve, and drives the second transmission plate to move towards the direction close to the sleeve through the transmission wheel; the second transmission plate is connected with the push plate; the first telescopic rod and the second telescopic rod are positioned on one side, close to the clamping component, of the push plate, the two ends of the first telescopic rod are respectively a first end and a second end, and the two ends of the second telescopic rod are respectively a third end and a fourth end; the first end of the first telescopic rod is hinged with the third end of the second telescopic rod, the first end of the first telescopic rod and the third end of the second telescopic rod are both slidably mounted on the push plate along a first direction, the fourth end of the second telescopic rod is connected with the clamping seat, the first end of the first telescopic rod is positioned on one side, far away from the cutting assembly, of the second end of the first telescopic rod, a second elastic piece is arranged in the first telescopic rod, the second elastic piece limits the first telescopic rod to further contract when the control assembly is in an initial state, and the stiffness coefficient of the second elastic piece is greater than that of the first elastic piece; the sleeve pipe inserts between a plurality of clamping jaws and pushes away the clamping jaw and remove to keeping away from the sleeve pipe direction, and first transmission plate drives the push pedal through drive wheel and second driving plate under the drive of clamping jaw and removes to the mounted position to being close to the sleeve pipe direction, and the push pedal promotes the first end of first telescopic link to rotate to keeping away from cutting assembly one side around the second end of first telescopic link when moving to being close to the sleeve pipe direction, and then makes the second telescopic link drive the centre gripping subassembly and install the sleeve pipe of centre gripping subassembly and remove to keeping away from cutting assembly direction.
3. The thermowell cutting machine for boiler temperature measurement according to claim 2, wherein: the cutting assembly comprises a wire saw which is arranged along a second direction and can move along the second direction to cut the sleeve, wherein the first direction is the radial direction of the sleeve, and the first direction is perpendicular to the second direction; the scroll saw cuts the sleeve when the sleeve moves along the clamping assembly in the first direction, the contact area of the scroll saw and the sleeve is increased firstly and then reduced when the scroll saw enters the sleeve to the collinear process of the diameters of the scroll saw and the sleeve, and the contact area of the scroll saw and the sleeve is increased firstly and then reduced when the scroll saw leaves the sleeve from the collinear position of the diameters of the sleeve.
4. The thermowell cutting machine for boiler temperature measurement according to claim 3, wherein: the control assembly further comprises a first driving piece, and the second end of the first telescopic rod is collinear with the wire saw; the second transmission plate is connected with the push plate through a third elastic piece, and the stiffness coefficient of the third elastic piece is larger than that of the second elastic piece; the first telescopic rod is driven by the first driving piece to swing around the second end of the first telescopic rod in a reciprocating mode within a preset range, the preset range is symmetrical about the wire saw, two limit positions of the first telescopic rod in the swing mode within the preset range are an initial position and a final position respectively, and the position of the first telescopic rod in the swing mode to be collinear with the wire saw is a middle position; in the process that the first driving piece drives the first telescopic rod to swing from the initial position to the middle position, the first telescopic rod is compressed to the limit length firstly, and then overcomes the elastic force of the third elastic piece under the driving of the first driving piece to further push the push plate to move towards the direction far away from the sleeve, so that the moving speed of the first end of the first telescopic rod along the first direction is reduced firstly and then increased; the first driving piece drives the first telescopic rod to swing from the middle position to the end position, the push plate returns to the installation position in the direction close to the sleeve pipe under the action of the third elastic piece, and the first telescopic rod extends under the action of the second elastic piece, so that the moving speed of the first end of the first telescopic rod in the first direction is firstly reduced and then increased.
5. The thermowell cutting machine for boiler temperature measurement according to claim 4, wherein: the first driving piece is a motor capable of rotating forward and backward, the second end of the first telescopic rod is connected with an output shaft of the motor, the second end of the first telescopic rod can freely rotate relative to the output shaft of the motor in the motor stop state, and the second end of the first telescopic rod and the output shaft of the motor synchronously rotate in the motor starting state.
6. The thermowell cutting machine for boiler temperature measurement according to claim 2, characterized in that: the retaining piece comprises a retaining ring, a third telescopic rod and a linkage rod, the third telescopic rod is arranged along the third direction, the axis of the retaining ring is arranged along the third direction, the retaining ring is connected with the clamping seat through the third telescopic rod, and the third telescopic rod limits the inclination of the axis of the retaining ring; each clamping jaw is hinged with the retaining ring through one linkage rod, so that when one clamping jaw moves, the retaining ring is driven to move along the third direction through the linkage rod, and then other clamping jaws are driven to move synchronously.
7. The thermowell cutting machine for boiler temperature measurement according to claim 2, characterized in that: the drive wheel is a gear, and the first drive plate and the second drive plate are toothed plates.
8. The thermowell cutting machine for boiler temperature measurement according to claim 4, wherein: the cutting assembly also comprises a second driving part and two supporting wheels, wherein one supporting wheel is driven by the second driving part to rotate; the coping saw is the annular, and the coping saw twines in two supporting wheels, and the tight limit of coping saw all sets up along the second direction with the loose limit, and the tight limit of coping saw is located the sleeve pipe one side that is close to of the loose limit of coping saw, and the second end of first telescopic link and the tight limit collineation of coping saw.
9. The thermowell cutting machine for boiler temperature measurement according to claim 8, wherein: the second driving member is a motor.
10. The thermowell cutting machine for boiler temperature measurement according to claim 4, wherein: the first elastic piece and the second elastic piece are both compression springs, and the third elastic piece is a tension spring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210422177.5A CN114523156B (en) | 2022-04-21 | 2022-04-21 | Thermocouple sleeve cutting machine for boiler temperature measurement |
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| CN202210422177.5A CN114523156B (en) | 2022-04-21 | 2022-04-21 | Thermocouple sleeve cutting machine for boiler temperature measurement |
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| CN114523156B (en) | 2022-07-22 |
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