CN204496936U - Power hammer device - Google Patents

Power hammer device Download PDF

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Publication number
CN204496936U
CN204496936U CN201520223004.6U CN201520223004U CN204496936U CN 204496936 U CN204496936 U CN 204496936U CN 201520223004 U CN201520223004 U CN 201520223004U CN 204496936 U CN204496936 U CN 204496936U
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China
Prior art keywords
lance
sleeve
base
casing
cam
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Active
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CN201520223004.6U
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Chinese (zh)
Inventor
杨泰波
刘才学
胡建荣
李翔
罗婷
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Nuclear Power Institute of China
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Nuclear Power Institute of China
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Priority to CN201520223004.6U priority Critical patent/CN204496936U/en
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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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  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

The utility model discloses a kind of power hammer device, comprise base, sleeve, casing, lance, lance end in base is provided with tup, lance in casing is provided with a lance axle, lance axle is provided with lance bearing, stepper motor is provided with in described casing, the output terminal band moving cam of stepper motor, cam and lance bearing fit drive lance at its axial-movement, lance in sleeve is provided with a fixing spring base, a fixing boss is provided with in sleeve, lance is set with the spring between spring base and boss, lance does back and forth movement on its axis under the mating reaction of spring and cam.The utility model can realize long-range operation and control, and does not need manually to beat to produce to clash into signal, realizes the acquisition of the loose piece simulating signal under delivery condition at full capacity, does not affect normal production, non-detectable problem during solving Operation at full power.

Description

Power hammer device
Technical field
The utility model relates to debugging and the labour phase on-line checkingi instrument of nuclear power station system for monitoring loosening part, specifically power hammer device.
Background technology
Between nuclear power plant reactor installation, debugging or overhaul time, outer parcel received may be brought in reactor, reactor is under long-term ruuning situation continuously on the other hand, vibration or ageing equipment get loose because can make some part produce, these outer parcels received or loose piece are moved with runner at reactor main circuit, to clash into reactor vessel wall, tube wall or internal part, serious harm reactor inner structure and pressure boundary structural intergrity.Therefore domestic active service and add nuclear power station in two generations of building or two generations and all installed system for monitoring loosening part (be called for short LPMS), three generations AP1000 nuclear power technology is provided with digital type metal and clashes into monitoring system (being called for short DMIMS-DX), for on-line monitoring nuclear power plant reactor, with Timeliness coverage and orienting response heap in loose piece.LPMS and DMIMS-DX comprises detecting devices, secondary instrument and a monitoring of software, all requires to detect the software and hardware of system, to ensure the serviceability of monitoring system in Installation and Debugging process with in-service run duration.The method that current nuclear power station adopts is artificial manufacture loose piece signal on detecting devices end chamber wall or tube wall, by monitoring the soft hardware performance of this loose piece signal in rack end test monitoring system.When LPMS and DMIMS-DX Installation and Debugging, staff directly can enter nuclear island, utilizes jack board to knock on the tube wall or wall of reactor main circuit and produces simulation loose piece signal, observe this signal, thus the soft hardware performance of detection system at rack end.And at full reactor power run duration, above-mentioned detection method is infeasible.
Through new patent searching, do not retrieve any literature record about technical scheme.
Utility model content
The purpose of this utility model is to provide one to be applied to power hammer device, solves current loose piece signal and brings by manually beaing to produce, the problem that this mode detects during can not being used for Operation at full power.
The purpose of this utility model is achieved through the following technical solutions:
Power hammer device, comprise cylindric base, a sleeve coaxial with base is installed with in base top, above sleeve, a casing is installed, also comprise a lance through sleeve, lance end in base is provided with tup, lance in casing is provided with a lance axle, lance axle is provided with lance bearing, stepper motor is provided with in described casing, the output terminal band moving cam of stepper motor, cam and lance bearing fit drive lance at its axial-movement, lance in sleeve is provided with a fixing spring base, a fixing boss is provided with in sleeve, lance is set with the spring between spring base and boss, lance does back and forth movement on its axis under the mating reaction of spring and cam.The utility model adopts stepper motor as the power driven, by driving stepper motor cam, the rotation of cam drives lance to move up and down, when lance axle arrives top dead centre, along with being rotated further of cam, the elastic force of spring and the gravity of lance are as power, gravitional force and elastic potential energy are all converted into the kinetic energy of lance, promotion tup moves downward, impinge upon pipeline long, just can produce the shock signal of simulation, adopt the acquisition technique of existing step motor control technology and simulating signal, just can realize long-range operation to control, do not need manually to beat to produce and clash into signal, and, such power hammer device structure can realize Long-distance Control by the action of control step motor, realize the acquisition of the loose piece simulating signal under delivery condition at full capacity, do not affect normal production, non-detectable problem during solving Operation at full power.
By there being fixing motor cabinet, stepper motor is installed at described bottom half, one deck backing plate is provided with between casing and motor cabinet, drive bearing is fixed with by bearing seat at bottom half, transmission shaft is provided with in drive bearing, the output shaft of stepper motor is connected with transmission shaft by shaft coupling, and cam is fixed on transmission shaft.Specifically, the effect of casing is not only provides a space, and as the immobilizing foundation of stepper motor, at box house, one deck backing plate is set, the effect of fastening parts and buffering can be played, avoid the phenomenon occurring resonance, backing plate arranges the motor cabinet being fixed on bottom half, stepper motor is arranged on motor cabinet, the output shaft of stepper motor drives transmission shaft by shaft coupling, transmission shaft is arranged in drive bearing, drive bearing is fixed on bottom half by bearing seat, transmission is carried out by the mode of shaft coupling, under can nonserviceabling, available protecting stepper motor, avoid it that stall occurs, transmission shaft drives lance bearing, changes the direction of power, is convenient to the installation of equipment.
Be provided with coaxial flange in described base top, sleeve is connected on coaxial flange by set collar.By arranging set collar, can fixed muffle, avoid its run-off the straight, keep the coincidence of axis, avoid bias, and the direction of motion of lance can be limited.
Described base bottom is provided with the arc seat board matched with tested pipeline, is respectively arranged with steel band in the both sides of arc seat board, and the end of two steel bands is provided with the locking mechanism of coupling mutually.Applicant has done further improvement to the technical solution of the utility model, by base being arranged on the mode on arc seat board, go for the pipeline of different-diameter, during use, arc seat board and tested pipe surface are fitted, then steel band is utilized to enclose circle, article two, the end of steel band connects into entirety by fastening structure, and locking mechanism can adopt a variety of: the such as structure such as bolts and nuts, individual event bayonet socket can realize the fixing object of steel band.
The utility model compared with prior art, has following advantage and beneficial effect:
1 the utility model power hammer device, adopt stepper motor as the power driven, by driving stepper motor cam, the rotation of cam drives lance to move up and down, when lance axle arrives top dead centre, along with being rotated further of cam, the elastic force of spring and the gravity of lance are as power, gravitional force and elastic potential energy are all converted into the kinetic energy of lance, promotion tup moves downward, impinge upon on pipeline, just can produce the shock signal of simulation, adopt the acquisition technique of existing step motor control technology and simulating signal, just can realize long-range operation to control, do not need manually to beat to produce and clash into signal, and, such power hammer device structure can realize Long-distance Control by the action of control step motor, realize the acquisition of the loose piece simulating signal under delivery condition at full capacity, do not affect normal production, non-detectable problem during solving Operation at full power, tup clashes into main pipeline under the effect of spring force and lance assembly gravity, produce and clash into signal, the shock of simulation nuclear power station loose piece on main pipeline, Li Chui device topworks knock-on reaction shut-down system main pipeline can produce the Impact energy being greater than 1.9J, this simulation loosening part clash into signal reach to loosening part monitoring and fault diagnosis system or and digital type metal clash into the requirement of monitoring system Monitoring Performance periodic detection, make testing become simple and easy to do, avoid personnel's radiation hazard,
2 the utility model power hammer devices, at box house, one deck backing plate is set, the effect of fastening parts and buffering can be played, avoid the phenomenon occurring resonance, backing plate arranges the motor cabinet being fixed on bottom half, stepper motor is arranged on motor cabinet, the output shaft of stepper motor drives transmission shaft by shaft coupling, transmission shaft is arranged in drive bearing, drive bearing is fixed on bottom half by bearing seat, carries out transmission, under can nonserviceabling by the mode of shaft coupling, available protecting stepper motor, avoids it that stall occurs; Transmission shaft drives lance bearing, changes the direction of power, is convenient to the installation of equipment;
3 the utility model power hammer devices, by base being arranged on the mode on arc seat board, go for the pipeline of different-diameter, during use, arc seat board and tested pipe surface are fitted, then steel band is utilized to enclose circle, article two, the end of steel band connects into entirety by fastening structure, is convenient to overall installation and removal.
Accompanying drawing explanation
Fig. 1 is that the utility model partly cuts open structural principle schematic diagram;
Fig. 2 is the utility model steel band structural representation.
Mark and corresponding parts title in accompanying drawing:
1-base, 2-sleeve, 3-casing, 4-lance, 5-tup, 6-lance axle, 7-lance bearing, 8-stepper motor, 9-cam, 10-spring base, 11-spring, 12-backing plate, 13-motor cabinet, 14-bearing seat, 15-drive bearing, 16-transmission shaft, 17-shaft coupling, 18-set collar, 19-arc seat board, 20-steel band, 21-fixes buckle, the coaxial flange of 22-.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
Schematic diagram as shown in Fig. 1 to 2, power hammer device of the present utility model, comprise cylindric base 1, the arc seat board 19 matched with tested pipeline is provided with in base 1 bottom, steel band 20 is respectively arranged with in the both sides of arc seat board 19, article two, the fixing buckle 21 of steel band end is provided with bolt, the nut of coupling mutually, and steel band is fixed on tested pipeline after coordinating by bolt, nut, the base 1 of power hammer device welds with between arc seat board 19, the performance of wlding is not worse than ER316L, steel band 20 welds by after 4 rivet interlacement with arc seat board 19, steel band 20 welds by after 4 rivet interlacement with buckle, be banded on main pipeline by the steel band 20 of wide 80mm, the axis of power hammer device mount pad and main pipeline horizontal plane, at the heat-insulation layer opening square hole of main pipeline, be of a size of 250*250mm, utilize buckle fastener, capable hammer device mount pad is made to be fixed on main pipeline, at base 1 top, coaxial flange 22 is installed, coaxial flange 22 is installed with a set collar 18, set collar 18 is provided with a sleeve 2, the madial wall of sleeve 2 there is a boss structure, base 1, the boss of sleeve 2, set collar 20, be coaxial setting, a casing 3 is provided with at the top of sleeve 2, a backing plate 12 is provided with in casing 3, it is inner that lance 4 is arranged on sleeve 2, it is inner that its one end is positioned at base 1, and at its end, tup 5 is installed, cushion pad can be installed in position corresponding with tup 5 on tested pipeline, avoid damaging pipeline, the other end of lance 4 stretches out sleeve 2 and extends to casing 3 inside, lance 4 is provided with spring base 10, spring base 10 is positioned at sleeve 2, spring 11 is set with between spring base 10 and the boss of sleeve 2, a lance axle 6 perpendicular to lance 4 is provided with at lance 4 top, lance axle 6 is provided with a lance bearing 7, lance bearing 7 is zanjon ball bearing, in casing 3 inside, one deck backing plate 12 is set, the effect of fastening parts and buffering can be played, backing plate 12 arranges the motor cabinet 13 be fixed on bottom casing 3, stepper motor 8 is arranged on motor cabinet 13, the output shaft of stepper motor 8 drives transmission shaft 16 by shaft coupling 17, transmission shaft 16 is arranged in drive bearing 15, drive bearing 15 is fixed on bottom casing 3 by bearing seat 14, transmission shaft 15 is provided with a cam 9, cam is positioned at immediately below lance axle 6, after stepper motor 8 starts, its output terminal drives transmission shaft 16 by shaft coupling 17, transmission shaft 16 rotates in drive bearing 15, band moving cam 9 rotates, after cam 9 rotates, lance bearing 7 is driven to rotate, and under the diameter effect of cam 9 change, lance axle 6 upwards promotes, thus drive lance 4 upwards to promote, spring 11 compresses, when lance axle 6 arrives top dead centre, be rotated further cam 9, cam is to the support pop-off of lance axle 6, lance 4 is under the elastic reaction of the restorative change of spring 11, the elastic potential energy of spring 11 changes into the kinetic energy of lance 4, drive the downward rapid movement of the tup of its end, impinge upon simulating signal pipeline being formed shock, stepper motor 8 output torque driving cam 9, the cam 9 rise phase drives bearing hoisting tup 5, and Compress Spring 11, cam 9 flyback period, tup 5 clashes into main pipeline under the effect of spring 11 power and lance 4 gravity, produces and clashes into signal, simulates quantitative loose piece and clashes into signal, tup 5 Impact energy E is always the summation that the elastic potential energy E bullet of spring 11 and the gravitional force E of lance 4 weigh, and it exists following relation:
（1）
（2）
（3）
Wherein: the elasticity coefficient of k-Compress Spring, unit is the lifting height of N/m, h-bearing, and unit is the quality of m, m-lance assembly, and unit is kg.
For adapting to high temperature near main pipeline, strong radiation environment, the component materials directly contacted with main pipeline is 00Cr17Ni14Mo2, and integrated stepping motor 8 is special motor, can under strong radiation environment long-term stable operation, resistance to irradiation index is 1*10 8rad, working temperature-20 ~ 300 DEG C; Bearing is customization 61900 moldeed depth ditch bearing, and blowout patche, seat ring and ball material are 9Cr8, and the material of retainer is tygon, and spring 11 material is 0Cr18Ni9, and elasticity coefficient is respectively 3.5N/mm; Power hammer device controls its action by control enclosure, control enclosure be wall-hanging, be placed in reactor building, the physical dimension of control enclosure is not more than 240*200*140mm, uses the expansion bolt of 4 M8, be arranged on reactor ring corridor exterior wall respectively, each Li Chui device topworks is equipped with a control enclosure; The power supply of the control enclosure of Li Chui device topworks is DC voltage 24V, electric current is not more than 3A, thered is provided by the alert process equipment in system for monitoring loosening part instrument cabinet, and by penetration piece, by a pair twisted pair line connection to the motor control module in power hammer device actuating mechanism controls box; The control signal of power hammer device actuating mechanism controls box is one group of passive contact signal, permission voltage is 5V, and electric current is not more than 1A, is provided by the alert process equipment in LPMS rack, and by penetration piece, by a pair twisted pair line connection to the motor control module in power hammer device control enclosure; Motor control module exports A, B two groups of control signals to Li Chui device topworks, is connected by two pairs of twisted-pair feeders; The course of action of Li Chui device topworks is controlled by the FPGA in alert process equipment: by loose part monitoring of software interface function button manual mode, start the I/O module corresponding ports in LPMS loose part detecting devices, the FPGA being sent to alert process equipment performs control.When the device control signal conducting of power hammer, the persistent movement of A, B two groups of signal control motors, once clashes into action until produce; When power hammer device control signal disconnects, motor stop motion.The control of power hammer device is realized by operation system for monitoring loosening part LPMS monitoring of software, the exchanges data of controller and I/O module is realized based on PXI data bus, fill order is transferred to the fpga logic control module of alert process equipment in LPMS rack, 2 tunnel control signals and 1 tunnel DC voltage are delivered to the control module of local control box by alert process equipment by cable, thus realize the control to power hammer device; For reducing the decay of control signal and direct supply, the accurate control of realizable force hammer device, arranges a local control box for each power hammer device, is arranged in local control box by motor control module in reactor building.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model, every according in technical spirit of the present utility model to any simple modification, equivalent variations that above embodiment is done, all fall within protection domain of the present utility model.

Claims (4)

1. power hammer device, it is characterized in that: comprise cylindric base (1), a sleeve (2) coaxial with base (1) is installed with at base (1) top, in sleeve (2) top, a casing (3) is installed, also comprise a lance (4) through sleeve (2), lance (4) end in base (1) is provided with tup (5), lance (4) in casing (3) is provided with a lance axle (6), lance axle (6) is provided with lance bearing (7), stepper motor (8) is provided with in described casing (3), the output terminal band moving cam (9) of stepper motor (8), cam (9) coordinates with lance bearing (7) and drives lance (4) at its axial-movement, lance (4) in sleeve (2) is provided with a fixing spring base (10), sleeve has a boss structure in (2), lance (4) is set with the spring (11) be positioned between spring base (10) and sleeve boss, lance (4) does back and forth movement on its axis under the mating reaction of spring (11) with cam (9).
2. power hammer device according to claim 1, it is characterized in that: in described casing (3) bottom by there being fixing motor cabinet (13) to be provided with stepper motor (8), one deck backing plate (12) is provided with between casing (3) and motor cabinet (13), drive bearing (15) is fixed with by bearing seat (14) in casing (3) bottom, transmission shaft (16) is provided with in drive bearing (15), the output shaft of stepper motor (8) is connected with transmission shaft (17) by shaft coupling (17), and cam (9) is fixed on transmission shaft (16).
3. power hammer device according to claim 1, is characterized in that: be provided with coaxial flange (21) at described base (1) top, sleeve (2) is connected on coaxial flange (21) by set collar (18).
4. power hammer device as claimed in any of claims 1 to 3, it is characterized in that: described base (1) bottom is provided with the arc seat board (19) matched with tested pipeline, be respectively arranged with steel band (20) in the both sides of arc seat board (19), the fixing buckle (21) of two steel band ends is provided with the locking mechanism of coupling mutually.
CN201520223004.6U 2015-04-14 2015-04-14 Power hammer device Active CN204496936U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201520223004.6U CN204496936U (en) 2015-04-14 2015-04-14 Power hammer device

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CN204496936U true CN204496936U (en) 2015-07-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104778979A (en) * 2015-04-14 2015-07-15 中国核动力研究设计院 Force hammer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104778979A (en) * 2015-04-14 2015-07-15 中国核动力研究设计院 Force hammer
CN104778979B (en) * 2015-04-14 2017-10-24 中国核动力研究设计院 Power hammers device into shape

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