CN206627277U - A kind of nuclear power station pipeline damping spring test device - Google Patents
A kind of nuclear power station pipeline damping spring test device Download PDFInfo
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- CN206627277U CN206627277U CN201720328469.7U CN201720328469U CN206627277U CN 206627277 U CN206627277 U CN 206627277U CN 201720328469 U CN201720328469 U CN 201720328469U CN 206627277 U CN206627277 U CN 206627277U
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- spring
- nuclear power
- power station
- test device
- station pipeline
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Abstract
The utility model discloses a kind of nuclear power station pipeline damping spring test device, the cam structure turn signal monitored is transferred to by control display device using counter, the number that control display device is compressed according to turn signal acquisition spring, strain signal when strain gauge is compressed spring is transferred to control display device, control display device can real-time display spring by compression number, the strain signal of spring, and analyze data, so as to obtain spring by the characteristic of abrupt release and stress variation situation；The utility model is simple in construction, manufacturing cost is low, and the spring that can be used nuclear power station pipeline carries out the spring force performance test of abrupt release.
Description
Technical field
The utility model belongs to mechanical measurement technique field, and in particular to a kind of nuclear power station pipeline damping spring test dress
Put.
Background technology
Nuclear power station carrys out the vibrations of control pipeline usually using damper, and the vibrations of pipeline generally include to be internally sourced stream
Basis vibrations, outside interference vibrations and the abnormal flowing of internal flow that body proper flow is brought, transient state caused by moment
Vibrations etc..
The safety problem of nuclear power station is particularly important, in order to ensure pipeline normal work, does not leak, damper is wanted
Ask very high, need to carry out damper strict test before coming into operation.Damper includes a damped part and spring
Part, common test is all to damper integrated testing, is pressurizeed using hydraulic jack, carries out durability test.It is and special
Normally only carried out for damping with the test of spring before spring dispatches from the factory.
Traditional spring method of testing, it is such as mechanical, to Dynamic Announce measurement parameter, output tested spring and stretching, pressure
Contracting characteristic curve, spring can not be tested by compressing the characteristic and durability of instantaneous relase completely.
Therefore, a kind of test device for the transient state release performance that can test used in nuclear power station damping spring has been researched and developed.
Utility model content
Technical problem to be solved in the utility model is：Existing spring method of testing can not test out the transient state of spring
Release performance and its relation that number is stretched and compressed with durability.A kind of nuclear power station pipeline damping spring test dress is now provided
Put, the technical problems such as characteristic and durability of the bullet by compressing instantaneous relase completely can not be tested by solving.
The utility model is achieved through the following technical solutions：
A kind of nuclear power station pipeline damping spring test device, including control display device, hydraulic pump, hydraulic motor, support,
Cam structure, spring, strain gauge, counter, hydraulic motor are fixed on support, are additionally provided with rotating shaft on hydraulic motor, in rotating shaft
Cam structure, the double wedge of cam structure and the upper-end contact of spring are installed；
Control display device is connected with strain gauge, counter, hydraulic pump, and hydraulic pump is connected with hydraulic motor；
Counter is rack-mount, and the turn signal of the cam structure of acquisition is transferred to control display dress by counter
Put, control turn signal of the display device according to the cam structure of reception and the quantity with reference to the double wedge calculates spring and compressed
Number；
Strain gauge is arranged on spring, and the spring strain signal data of acquisition are transferred to control display device by strain gauge.
Further, the lower end of the support, the lower end of spring are each attached in supporting plate.
Further, the lower end of the spring is fixed on the supporting plate by locking bolt.
Further, the supporting plate is iron floor, and the support is fixed on iron floor by T-bolt, the branch
The side of frame is provided with polylith stiffener plate.
Further, the nuclear power station pipeline damping spring test device also includes safety anti-releasing structure, safety anti-releasing knot
Structure includes middle anti-drop rod, anticreep pawl, and the bottom of middle anti-drop rod is fixed on the supporting plate, and multiple anticreep pawls are fixed on
In middle anti-drop rod, single anticreep pawl and middle anti-drop rod are mutually perpendicular to.
Further, the height of the middle anti-drop rod is less than height when spring is compressed, and the length of anticreep pawl is less than
The diameter of spring.
Further, the counter is infrared type counter or electromagnetic counter.
Further, the number of the double wedge of the cam structure is 1-4.
Further, two side camber lines of the double wedge of the cam structure are raised type camber line or a side camber line is outer
Male camber line, another side are concave camber line.
Further, the strain is calculated as 1 or 2 or 4.
The utility model compared with prior art, has the following advantages and advantages：
(1) turn signal of the cam structure monitored is transferred to control display dress by the utility model using counter
Put, the number that control display device is compressed according to turn signal acquisition spring, strain letter when strain gauge is compressed spring
Number be transferred to control display device, control display device can real-time display spring by compression number, the strain signal of spring, and point
Data are analysed, so as to obtain spring by characteristic during abrupt release and stress variation situation.
(2) the utility model is simple in construction, manufacturing cost is low, and the spring progress moment that can be used nuclear power station pipeline releases
The spring force test put.
Brief description of the drawings
Fig. 1 is the front view of the utility model structure；
Fig. 2 is the side view of the utility model structure convexity wheel construction；
Fig. 3 is the side view of the safety anti-releasing structure in the utility model structure；
In figure：1- supporting plates, 2- control display devices, 3- hydraulic pumps, 4- hydraulic motors, 5- counters, 6- cam structures,
7- stiffener plates, 8- supports, 9- rotating shafts, 10- springs, 11- safety anti-releasing structures, 12- locking bolts, 13- strain gauges, in 14-
Between anti-drop rod, 15- anticreep pawls, 16- double wedges.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment, to this reality
It is described in further detail with new, exemplary embodiment of the present utility model and its explanation are only used for explaining that this practicality is new
Type, it is not intended as to restriction of the present utility model.
Embodiment 1：
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of nuclear power station pipeline damping spring test device, including control display device 2, liquid
Press pump 3, hydraulic motor 4, support 8, cam structure 6, spring 10, strain gauge 13, counter 5, hydraulic motor 4 are fixed on support 8
On, rotating shaft 9 is additionally provided with hydraulic motor 4, cam structure 6, double wedge 16 and the spring 10 of cam structure 6 are installed in rotating shaft 9
Upper-end contact；
Control display device 2 is connected with strain gauge 13, counter 5, hydraulic pump 3, and hydraulic pump 3 is connected with hydraulic motor 4；
Counter 5 is arranged on support 8, and the turn signal of the cam structure 6 of acquisition is transferred to control display by counter 5
Device 2, turn signal of the control display device 2 according to the cam structure 6 of reception and the quantity with reference to the double wedge 16 calculate bullet
The number that spring 10 is compressed；
Strain gauge 13 is arranged on spring 10, and the strain signal data of spring 10 of acquisition are transferred to control and shown by strain gauge 13
Showing device 2.
Support 8 described in the present embodiment can be that structure, the lower ends of support 8 such as column, vertical bar are fixed in supporting plate 1,
The upper end of support 8 can be used for fixed hydraulic motor 4, and hydraulic motor 4 can be adjustably fixed on support 8 up and down, hydraulic motor 4 with
The specific annexation of support 8 is：The rotating shaft 9 of hydraulic motor 4 passes through the support 8, and cam structure 6 is provided with rotating shaft 9, convex
Wheel construction 6 rotates with the rotation of rotating shaft 9.
In the rotation process of rotating shaft 9, the double wedge 16 of the cam structure 6 set in rotating shaft 9 and the contact condition of spring 10 are not
Together, when spring 10 is compressed completely, the upper end of spring 10 and the top contact of the double wedge 16 of cam structure 6, spring 16 are certainly
During by state, the upper end of spring 10 contacts with the side camber line of the double wedge 16 of cam structure 6.
Wherein, the counter 5 being arranged on support 8 can monitor the turn signal of cam structure 6, and by the turn signal
It is transferred to control display device 2, the number that control display device 2 is compressed according to turn signal acquisition spring 10；Meanwhile control
The real-time display spring 10 of display device 1 is by compression number, the strain signal of spring 10, the pressure of hydraulic pump 3 and flow, hydraulic pressure horse
Up to 4 pressure and the corresponding relation of rotating speed.
Wherein, the strain gauge 13 being arranged on spring 10, can monitor spring 10 compressed or the strain of release conditions letter
Number, and transmit the signal to control display device 2, the stress value and bullet that control display device 2 is compressed spring for the first time
Spring is compared by the stress value after more second compressions, and within the specific limits, then it is qualified to judge for both differences, you can confirms nuclear power
The transient state release performance and durability stood with damping spring.
Concrete operation method is：Control display device 2, the power supply of hydraulic pump 3 are opened, spring 10 to be measured is fixed to
Position, start hydraulic motor 4, under automatic control mode, spring can be that instantaneous relase can also be constrained release, pass through control
The setting of display device 2 processed needs the number tested, such as 10000 times, then device is run always, in spring by compression 10000 times
Afterwards, it is automatically stopped, in by compression process, rotating shaft 9 starts to rotate, and spring 10, which is repeated several times, to be compressed, discharged, on support 8
Counter 5 records the number that spring 10 is compressed, and transmits the signal to control display device 2, on spring 10
Strain gauge 13 records the strain signal of spring 10 when compressed, and the strain signal is transferred into control display device 2, control
Display device 2 is handled according to the data-signal received, and test spring wink under complete compressive state is obtained so as to calculate
When the characteristic and durability that discharge.
Scram button is additionally provided with control display device 2, when there is fortuitous event, emergency braking device operation.
Counter 5 described in the present embodiment can be infrared type counter, be entered by the number for recording infrared external reflection pulse
Row counts, and its structure and its principle are well known to those skilled in the art, be no longer described in detail.
The main function of strain gauge 13 described in the present embodiment is that monitoring obtains the strain signal of spring, its concrete structure
And its principle is known to those skilled in the art, no longer it is described in detail.
Wherein, display device 2, hydraulic pump 3 is controlled to be both placed in supporting plate 1, supporting plate 1 can be quadrilateral structure
Flat board.Wherein, control display device 2 includes controller, display and input unit, and controller can use 51 single-chip microcomputers, its
According to default durability times or the signal enabling or closing hydraulic pump 3 of scram button.Display can be that LED or LCD are shown
Device, receives the control information and data message of controller, shows real-time pressure value and spring by compression number, further also
Can be with the running status of display system, such as the parameter of hydraulic pump and the parameter of hydraulic oil etc..
Hydraulic motor 4 described in the present embodiment is fixed on support 8, and can by up and down it is adjustable in a manner of be fixed on institute
State on support 8.This regulative mode is different mainly for the size of nuclear power station pipeline damping spring, in order to using different
Spring sizes, hydraulic motor 4 is arranged to adjustment height, specific implementation can by using screw type height adjustment mechanism or
Hydraulic pressure rod-type height adjustment mechanism etc..
The port of export of hydraulic pump 3 described in the present embodiment is also associated with overflow valve, and control display device 2 is by overflow
Valve is controlled so as to adjust the pressure of hydraulic pump 3 to adapt to the deformation quantity of different springs 10.
Embodiment 2：
The present embodiment further limits on the basis of the 1 of embodiment, and lower end, the lower end of spring 10 of the support 8 are equal
It is fixed in supporting plate 1, the lower end of the spring 10 is fixed in supporting plate 1 by locking bolt 12, will branch in the present embodiment
The lower end of frame 8 is fixed on supporting plate 1, is easy to support 8 to bear hydraulic motor 4, the gravity of support 8, and the rotating shaft of support rack 8
The relative motion that the double wedge of 9 drive cam structures 6 is compressed, recovered with spring 10.Lower end by spring 10 is to spring
10 one end is fixed, and the other end is compressed under the rotary action of rotating shaft 9 or abrupt release, realizes completion pair under automatic control
The test of the instantaneous relase characteristic of spring 10 and durability.Support 8, spring 10 described in the present embodiment, supporting plate 1 are isostructural
Structure well known in the art and its effect are act as, is the common knowledge described in this area, is no longer described in detail.
Embodiment 3：
The difference of the present embodiment and above-described embodiment is：The side of the support 8 is provided with stiffener plate described in polylith
7, the main function of stiffener plate 7 is to play a part of reinforced support 8, prevents that support 8 deforms upon under pressure, plays
Certain supporting role, the concrete structure of stiffener plate 7 and its effect are known to the skilled person, are no longer described in detail.
Embodiment 4：
The difference of the present embodiment and above-described embodiment is：It is described also to include safety anti-releasing structure 11, safety anti-releasing structure
11 include middle anti-drop rod 14, anticreep pawl 15, and the bottom of middle anti-drop rod 14 is fixed in supporting plate 1, multiple anticreep pawls
15 are fixed in middle anti-drop rod 14, and single anticreep pawl 15 is mutually perpendicular to middle anti-drop rod 14.
The height of the middle anti-drop rod 14 is less than height when spring 10 is compressed, and the length of anticreep pawl 15 is less than spring
10 diameter.
The main function of safety anti-releasing structure 11 is to prevent the locking spiral shell due to the lower end of spring 10 in the present embodiment
Bolt 12 loosens and come off, and the danger that spring is burst out occurs.Safety anti-releasing structure 11 is set, and its role is the side of spring 10
To when bursting out, the anticreep pawl 15 can catch on spring 10, prevent from damaging personnel or equipment.
Influenceed in the present embodiment in order to ensure that compression of the middle anti-drop rod 14 on spring 10 is formed, by the centre
The height of anti-drop rod 14 is set smaller than height when spring 10 is compressed.The length of anticreep pawl 15 is set to be less than the straight of spring 10
The main function in footpath is to prevent anticreep pawl 15 is formed with spring 10 in test process from interfering, and influences test result.Wherein, anticreep
Pawl 15 and middle anti-drop rod 14 using being fixedly connected with mode, it is specific it is solderable, be spirally connected.
Embodiment 5：
For the present embodiment on the basis of above-described embodiment, the counter 5 is infrared type counter or electromagnetic counter.
The effect of electromagnetic counter is counted by recording the number of magnetic field impulse, and the magnetic field impulse signal is sent into control and shown
Showing device 2.
In characteristic of the test spring by compression instantaneous relase, spring 10 is by instantaneous relase, can produce larger noise,
Therefore counter 5 can be also audio recorders, the number of acoustic impluse is recorded, can also directly obtain the number number that spring is compressed
According to.
Counter 5 in the present embodiment can also be other structures, and other have record spring by the part of compression number,
For the equivalent function structure of counter.
Embodiment 6：
The present embodiment limits the number of double wedge 16 of the cam structure 6 as 1-4 on the basis of above-described embodiment.
Two side camber lines of the double wedge 16 of the cam structure 6 are raised type camber line or a side camber line is raised type arc
Line, another side are concave camber line.
When cam structure 6 is as rotating shaft 9 is when turning to up to position with 10 nearest one end of spring, spring 10 is pressed completely
Contracting, the top contact of double wedge 16 of spring 10 and cam structure 6, when spring 10 is free state, upper end and the cam knot of spring 10
The side camber line contact of the double wedge 16 of structure 6.
On being configured to the double wedge 16 of cam structure 6 in the present embodiment, its number can be 1-4, preferably 1 or
2-4, when the number of double wedge 16 is 1,16 liang of side camber lines of double wedge are raised type camber line, and spring is constrained to be compressed,
It is then constrained and recover, or side is raised type camber line, opposite side is concave camber line, and in 16 turns of the cam structure
It is raised type camber line first with the side camber line of the upper-end contact of the spring 10, opposite side is concave camber line, at this when dynamic
Kind in the case of, the constrained compression of spring, and it is unfettered when resilience, realize instantaneous relase.Pass through the double wedge to cam structure 6
The setting of 16 numbers, when rotating shaft 9 rotates, contact situation of the double wedge 16 with spring is different, so as to test to obtain spring by about
In the case of two kinds of beam release and instantaneous relase, the transient state release performance of spring.
Embodiment 7：
The present embodiment is on the basis of above-described embodiment, and it is 1 or 2 or 4 to limit the strain gauge 13, strain gauge 13
For 1, the strain measurement circuit of a quarter bridge is formed；Strain gauge 13 is 2, forms the strain measurement circuit of half-bridge；Strain
Meter 13 is 4, forms the strain measurement circuit of full-bridge.
Support 8, locking bolt, control display device 2, counter 5, hydraulic pump 3 described in the present embodiment, any other
Complete the part of equal function described in the present embodiment, although its Terminology with inconsistent in the technical program, still in this skill
In the protection domain of art scheme.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. nuclear power station pipeline damping spring test device, it is characterised in that：Including control display device (2), hydraulic pump (3), hydraulic motor (4), support (8), cam structure (6), spring (10), strain gauge (13), counter (5), hydraulic motor (4) It is fixed on support (8), rotating shaft (9) is additionally provided with hydraulic motor (4), cam structure (6), cam knot are installed in rotating shaft (9) The double wedge (16) of structure (6) and the upper-end contact of spring (10)；Control display device (2) is connected with strain gauge (13), counter (5), hydraulic pump (3), hydraulic pump (3) and hydraulic motor (4) connect；Counter (5) is arranged on support (8), and the turn signal of the cam structure (6) of acquisition is transferred to control by counter (5) Display device (2), display device (2) is controlled according to the turn signal of the cam structure (6) of reception and with reference to the double wedge (16) Quantity calculate spring (10) number for being compressed；Strain gauge (13) is arranged on spring (10), and spring (10) strain signal data of acquisition are transferred to control by strain gauge (13) Display device (2) processed.
- A kind of 2. nuclear power station pipeline damping spring test device according to claim 1, it is characterised in that：The support (8) lower end, the lower end of spring (10) is each attached in supporting plate (1).
- A kind of 3. nuclear power station pipeline damping spring test device according to claim 2, it is characterised in that：The spring (10) lower end is fixed in supporting plate (1) by locking bolt (12).
- A kind of 4. nuclear power station pipeline damping spring test device according to claim 3, it is characterised in that：The supporting plate (1) it is iron floor, the support (8) is fixed on iron floor by T-bolt, and the side of the support (8) adds provided with polylith Strengthening tendons plate (7).
- A kind of 5. nuclear power station pipeline damping spring test device according to claim 1, it is characterised in that：Also include safety Disconnecting prevention structure (11), safety anti-releasing structure (11) include middle anti-drop rod (14), anticreep pawl (15), the bottom of middle anti-drop rod (14) Portion is fixed in supporting plate (1), and multiple anticreep pawls (15) are fixed in middle anti-drop rod (14), single anticreep pawl (15) with Middle anti-drop rod (14) is mutually perpendicular to.
- A kind of 6. nuclear power station pipeline damping spring test device according to claim 5, it is characterised in that：Prevent the centre The height of de- bar (14) is less than height when spring (10) is compressed, and the length of anticreep pawl (15) is less than the diameter of spring (10).
- A kind of 7. nuclear power station pipeline damping spring test device according to claim 1, it is characterised in that：The counter (5) it is infrared type counter or electromagnetic counter.
- A kind of 8. nuclear power station pipeline damping spring test device according to claim 1, it is characterised in that：The cam knot The number of the double wedge (16) of structure (6) is 1-4.
- A kind of 9. nuclear power station pipeline damping spring test device according to claim 1, it is characterised in that：The cam knot Two side camber lines of the double wedge (16) of structure (6) be raised type camber line or a side camber line be raised type camber line, another side be Concave camber line.
- A kind of 10. nuclear power station pipeline damping spring test device according to claim 1, it is characterised in that：The strain The number for counting (13) is 1 or 2 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328469.7U CN206627277U (en) | 2017-03-30 | 2017-03-30 | A kind of nuclear power station pipeline damping spring test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328469.7U CN206627277U (en) | 2017-03-30 | 2017-03-30 | A kind of nuclear power station pipeline damping spring test device |
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| Publication Number | Publication Date |
|---|---|
| CN206627277U true CN206627277U (en) | 2017-11-10 |
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ID=60206438
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| CN201720328469.7U Active CN206627277U (en) | 2017-03-30 | 2017-03-30 | A kind of nuclear power station pipeline damping spring test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254171A (en) * | 2018-01-16 | 2018-07-06 | 无锡科洛特轻工机械有限公司 | Automatic voltage measurement device |
| CN110186667A (en) * | 2019-07-12 | 2019-08-30 | 南京越博动力系统股份有限公司 | A kind of disc spring endurance testing system and method |
-
2017
- 2017-03-30 CN CN201720328469.7U patent/CN206627277U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254171A (en) * | 2018-01-16 | 2018-07-06 | 无锡科洛特轻工机械有限公司 | Automatic voltage measurement device |
| CN110186667A (en) * | 2019-07-12 | 2019-08-30 | 南京越博动力系统股份有限公司 | A kind of disc spring endurance testing system and method |
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