CN106441838B - Bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force - Google Patents
Bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force Download PDFInfo
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- CN106441838B CN106441838B CN201610807349.5A CN201610807349A CN106441838B CN 106441838 B CN106441838 B CN 106441838B CN 201610807349 A CN201610807349 A CN 201610807349A CN 106441838 B CN106441838 B CN 106441838B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
Bolt looseness tests vibration gauge under a kind of adjustable Dynamic High-accuracy tension and compression shearing force of present invention offer, it includes variable-frequency motor, variable-frequency motor is bolted on bottom plate, small pulley is mounted on the output shaft of variable-frequency motor, big belt wheel is mounted on the input shaft of retarder, is connected by band between small pulley and big belt wheel；High-accuracy adjustable eccentric wheel is mounted on the output shaft of retarder, the output end of high-accuracy adjustable eccentric wheel and No.1 connecting rod one end are hinged, the No.1 connecting rod other end and lateral device for measuring force one end are hinged, the lateral device for measuring force other end and No. two connecting rod one end are hinged, No. two connecting rod other ends and vibrating device one end are hinged, and test bolt, angular displacement sensor device and displacement of the lines sensing device are equipped on vibrating device；The present invention helps researcher to understand fully that plain bolt is connected to the mechanism and process of bolt looseness under dynamic tension and compression shearing force and prevents bolt looseness to instruct bolt to design.
Description
Technical field
The present invention relates to bolt looseness experimental technique fields, in particular to a kind of adjustable Dynamic High-accuracy tension and compression shearing force
The lower bolt looseness of effect tests vibration gauge.
Background technology
Under normal circumstances, the service life that fastener anti-vibration pine turns is more much lower than the fatigue life of its material and structure, i.e., tightly
Firmware has just occurred pine before fatigue rupture and has turned failure, therefore carries out locking analysis to thread connection to prevent from fastening
Part loose or dislocation in use, has great importance；Certain type emitter turns round transmission system spiral shell during test adjustment
It tethers fitting to occur loosening, when checking testing failure bolt, it is found that form of thread is intact, and can be continuing with after tightening.Spiral shell
One of the advantages of line connection couples compared with other is detachable, easy-maintaining, but this is also its weakness simultaneously, is especially transported in high speed
Turn, vibrate in the heavy mechanical equipments such as strong train, automobile, aircraft, tank, because of the loosening of thread connector, loosens, fatigue
It is broken and causes overturning, the malignant event of fatal crass innumerable.Therefore, it is badly in need of a kind of bolt looseness experiment vibration gauge energy
Researcher is helped to understand fully that plain bolt is connected to the mechanism and process of bolt looseness under dynamic tension and compression shearing force, to instruct spiral shell
Bolt designs, and prevents bolt looseness.
Invention content
The purpose of the present invention is to provide bolt loosenesses under a kind of adjustable Dynamic High-accuracy tension and compression shearing force to test
Vibration gauge helps researcher to understand fully that plain bolt is connected to the mechanism and process of bolt looseness under dynamic tension and compression shearing force,
To instruct bolt to design, bolt looseness is prevented.
The present invention is in order to solve the above technical problems, used technical solution is：A kind of adjustable Dynamic High-accuracy tension and compression
Bolt looseness tests vibration gauge under shearing force, it includes variable-frequency motor, and the variable-frequency motor is bolted on bottom plate
On, small pulley is mounted on the output shaft of variable-frequency motor, and big belt wheel is mounted on the input shaft of retarder, the small pulley and big
It is connected by band between belt wheel；
High-accuracy adjustable eccentric wheel be mounted on retarder output shaft on, the output end of high-accuracy adjustable eccentric wheel and
No.1 connecting rod one end is hinged, and the No.1 connecting rod other end and lateral device for measuring force one end are hinged, and the transverse direction device for measuring force is another
One end and No. two connecting rod one end are hinged, and No. two connecting rod other ends and vibrating device one end are hinged, pacify on the vibrating device
Equipped with test bolt, angular displacement sensor device, displacement of the lines sensing device and for measures test bolt suffered by axial force pressure
Force snesor.
Further, the retarder includes retarder pedestal, and retarder pedestal is bolted on bottom plate, input
Axis and output shaft are mounted on by bearing on retarder pedestal, and pinion gear and gear wheel are separately mounted on input shaft and output shaft
And axially position is carried out by axle sleeve and hubcap, retarder upper cover is bolted on retarder pedestal.
Further, the high-accuracy adjustable eccentric wheel includes adjustment bar, drive block and eccentric block, the drive block packet
Two pieces are included in the concave-board being oppositely arranged, end cap is fixedly mounted on the end of two pieces of concave-boards of drive block, the eccentric block peace
Between two pieces of concave-boards of drive block, adjustment bar is mounted on the inside of drive block and eccentric block, and adjustment bar and eccentric block
Between contact surface be inclined-plane；
Drive block side is equipped with adjusting screw rod, and adjusting screw rod is threadedly coupled with drive block, and drive is stretched into adjusting screw rod one end
Motion block and adjustment bar end thereof contacts, the adjustment bar other end are contacted across the drive block other side with the leaf spring being fixed on drive block；
Eccentric block one end is equipped with standing screw, and standing screw is threadedly coupled with eccentric block, and standing screw one end is stretched into partially
Heart block and one side contacts of adjustment bar；It is additionally provided with spring between the eccentric block other end and end cap；
The mounting hole of drive block is sleeved on the output shaft of retarder, and the axis pin of eccentric block and one end of No.1 connecting rod are hinged
Together.
Further, the end cap is fixed on by the first screw on drive block, and the leaf spring is solid by the second screw
It is scheduled on drive block.
Further, the lateral device for measuring force includes pedestal, and pedestal is bolted on bottom plate, and dovetail groove passes through
Bolt is fixed on the base, and No.1 sliding block and No. two sliding blocks are mounted in dovetail groove, can be free to slide along dovetail groove, tension and compression
The both ends of sensor are separately fixed at by bolt on No.1 sliding block and No. two sliding blocks, the other end of No.1 sliding block and No.1 connecting rod
Hinged, one end of No. two sliding blocks and No. two connecting rods is hinged.
Further, the vibrating device includes pedestal, and pedestal is bolted on bottom plate, at the top of basin shape connector
It is connected by ball between pedestal and by testing bolt presses, pressure sensor is sleeved on outside screw rod fixture, screw rod fixture peace
Its axial rotation is limited in the macropore of pedestal and by key, the screw rod for testing bolt is mounted in screw rod fixture, can not be around
Axial rotation, connecting shaft are fixed by a pin to basin shape connector bottom, and hinged with the other end of No. two connecting rods.
Further, the top of the basin shape connector is hollow rectangular plate-like structure, and hollow part lower section is solid
Surely it is connected with the cube groove for connecting shaft to be fixedly mounted.
Further, the quantity of the test bolt is four, is located at basin shape connector top rectangular plate knot
Four square positions of structure.
Further, the angular displacement sensor device includes column, and column is fixed by screws in the base of vibrating device
On seat, angular displacement sensor is fixed on by connection sheet on column.
Further, the displacement of the lines sensing device includes No.1 fixed block, and No.1 fixed block, which is fixed by screws in, to shake
On the basin shape connector of dynamic device, sheet metal is fixed by the connecting rod on No.1 fixed block, and No. two fixed blocks are pacified by screw
On the pedestal of vibrating device, two induction coils are fixed on by two link blocks on No. two fixed blocks.
Operation principle of the present invention is：
Variable-frequency motor can drive the rotation of high-accuracy adjustable eccentric wheel, high-accuracy adjustable eccentric wheel band by speed reducer
Dynamic No.1 connecting rod moves left and right, and to drive lateral device for measuring force and No. two connecting rods also to move left and right, No. two connecting rods drive vibration
Device side-to-side vibrations, and then provide the environment vibrated, in this process, the concrete operating principle of each component to test bolt
It is as follows：
1, the variation of vibration frequency is realized by variable-frequency motor.Change vibration dress by changing the rotating speed of variable-frequency motor
The frequency of side-to-side vibrations is set, and then realizes the frequency conversion of vibration.
2, the variation of the amplitude of vibration is realized by high-accuracy adjustable eccentric wheel.Eccentric stiffener is realized by adjusting screw rod
Adjusting, realize high-precision eccentric amplitude adjusted；The end face of adjustment bar is set to be close to adjusting screw rod by the elastic force of leaf spring, from
And it realizes adjustment bar and follows adjusting screw rod mobile and move；The adjusting and fixation of eccentric stiffener are realized by standing screw, it is fixed
Screw rod can realize the adjusting of eccentric stiffener when unclamping, the fixation of eccentric stiffener is realized after tightening；High-precision can be achieved in final adjust
The eccentric size for adjusting eccentric wheel, also can accurately adjust the amplitude of vibrating device side-to-side vibrations to realize accurate change in this way
Width.
3, the measurement of cross force is realized by lateral device for measuring force.It is measured by the tension-compression sensor of lateral device for measuring force high
Precision adjusts cross force caused by eccentric wheel.
4, the measurement of nut loosening displacement is realized by angular displacement sensor device.Pass through the angle of angular displacement sensor device
The angle of displacement sensor nut loosening, to further analyze the mechanism of bolt looseness.
5, the measurement to vibrating device oscillation crosswise amplitude and frequency is realized by displacement of the lines sensing device.Pass through displacement of the lines
The induction coil of sensing device measures vibrating device Oscillation Amplitude and frequency, is come out by oscilloscope display.
Advantageous effect of the present invention：Apparatus of the present invention can help researcher to understand fully that plain bolt is connected to dynamic tension and compression shearing
The mechanism and process of bolt looseness prevent bolt looseness to instruct bolt to design under force effect.
Description of the drawings
Fig. 1 is the overall structure that bolt looseness tests vibration gauge under a kind of adjustable Dynamic High-accuracy tension and compression shearing force
Schematic diagram；
Fig. 2 is the overall structure diagram at another visual angle of Fig. 1；
Fig. 3 is the overall structure diagram at another visual angle of Fig. 1；
Fig. 4 is the structural schematic diagram of the retarder removing case lid in Fig. 1；
Fig. 5 covers the structural schematic diagram of case lid for the retarder in Fig. 1；
Fig. 6 is the partial cutaway structural schematic diagram of the high-accuracy adjustable eccentric wheel in Fig. 1；
Fig. 7 is the partial cutaway structural schematic diagram at another visual angle of the high-accuracy adjustable eccentric wheel in Fig. 1；
Fig. 8 is the structural schematic diagram at another visual angle of the high-accuracy adjustable eccentric wheel in Fig. 1；
Fig. 9 is the structural schematic diagram at another visual angle of the high-accuracy adjustable eccentric wheel in Fig. 1；
Figure 10 is the structural schematic diagram of the lateral device for measuring force in Fig. 1；
Figure 11 is the structural schematic diagram at another visual angle of the lateral device for measuring force in Fig. 1；
Figure 12 is the partial cutaway structural schematic diagram of the vibrating device in Fig. 1；
Figure 13 is the partial cutaway structural schematic diagram at another visual angle of the vibrating device in Fig. 1；
Figure 14 is the schematic diagram at another visual angle of the vibrating device in Fig. 1；
Figure 15 is the schematic diagram at another visual angle of the vibrating device in Fig. 1；
Figure 16 is the partial structural diagram of Fig. 1 and the connection structure of angular displacement sensor device and displacement of the lines sensing device
Schematic diagram；
In figure：Variable-frequency motor 1, small pulley 2, band 3, big belt wheel 4, retarder 5, high-accuracy adjustable eccentric wheel 6, No.1 connect
Bar 7, vibrating device 10, angular displacement sensor device 11, displacement of the lines sensing device 12, subtracts 8, No. two connecting rods 9 of lateral device for measuring force
Fast device pedestal 501, input shaft 502, bearing 503, pinion gear 504, gear wheel 505, output shaft 506, hubcap 507, retarder
Upper cover 508, adjustment bar 601, drive block 602, the first screw 603, end cap 604, spring 605, adjusting nut 606, eccentric block
607, standing screw 608, the second screw 609, leaf spring 6010, mounting hole 6011, axis pin 6012, pedestal 801, dovetail groove 802, one
Number sliding block 803,804, No. two sliding blocks 805 of tension-compression sensor, pedestal 1001, basin shape connector 1002, ball 1003, test bolt
1004, pressure sensor 1005, screw rod fixture 1006, connecting shaft 1007, column 1101, connection sheet 1102, angular displacement sensor
1103,1205, No. two No.1 fixed block 1201, connecting rod 1202, sheet metal 1203, link block 1204, induction coil fixed blocks
1206。
Specific implementation mode
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figures 1 to 3, bolt looseness tests vibration gauge under a kind of adjustable Dynamic High-accuracy tension and compression shearing force,
It includes variable-frequency motor 1, and variable-frequency motor 1 is bolted on bottom plate 13, and small pulley 2 is mounted on the output of variable-frequency motor 1
On axis, big belt wheel 4 is mounted on the input shaft of retarder 5, is connected by band 3 between small pulley 2 and big belt wheel 4；Existing market
On the rotating speed of variable-frequency motor 1 be generally up to thousands of rpms, drop to reality so needing to control its rotating speed by retarder 5
Test required rotating speed.
High-accuracy adjustable eccentric wheel 6 is mounted on the output shaft of retarder 5, the output of high-accuracy adjustable eccentric wheel 6
End and 7 one end of No.1 connecting rod are hinged, and 7 other end of No.1 connecting rod and 8 one end of lateral device for measuring force are hinged, and lateral device for measuring force 8 is another
One end and No. two 9 one end of connecting rod are hinged, and No. two 9 other ends of connecting rod and 10 one end of vibrating device are hinged, are installed on vibrating device 10
There are test bolt 1004, angular displacement sensor device 11, displacement of the lines sensing device 12 and is tested suffered by bolt 1004 for measuring
The pressure sensor 1005 of axial force.Horizontal reciprocating movement can be provided by high-accuracy adjustable eccentric wheel 6 to No.1 connecting rod 7
Pulling force and thrust, and then 8, No. two connecting rods 9 of lateral device for measuring force can be driven, the final basin shape connection for driving vibrating device 10
Side-to-side vibrations occurs for part 1002.
As shown in Fig. 4 to 5, retarder 5 includes retarder pedestal 501, and retarder pedestal 501 is bolted on bottom plate
On 13, input shaft 502 and output shaft 506 are mounted on by bearing 503 on retarder pedestal 501, pinion gear 504 and gear wheel
505 are separately mounted on input shaft 502 and output shaft 506 and carry out axially position by axle sleeve and hubcap 507, on retarder
Lid 508 is bolted on retarder pedestal 501.
As shown in Fig. 6 to 9, high-accuracy adjustable eccentric wheel 6 includes adjustment bar 601, drive block 602 and eccentric block 607, is driven
It is in the concave-board being oppositely arranged that motion block 602, which includes two pieces, and end cap 604 is fixedly mounted on the end of two pieces of concave-boards of drive block 602
Portion, eccentric block 607 are mounted between two pieces of concave-boards of drive block 602, and adjustment bar 601 is mounted on drive block 602 and eccentric block
607 inside, and the contact surface between adjustment bar 601 and eccentric block 607 is inclined-plane；
602 side of drive block is equipped with adjusting screw rod 606, and adjusting screw rod 606 is threadedly coupled with drive block 602, and adjusts spiral shell
Drive block 602 and 601 end thereof contacts of adjustment bar are stretched into 606 one end of bar, and 601 other end of adjustment bar passes through 602 other side of drive block
It is contacted with the leaf spring 6010 being fixed on drive block 602；
607 one end of eccentric block is equipped with standing screw 608, and standing screw 608 is threadedly coupled with eccentric block 607, and fixed spiral shell
Eccentric block 607 and 601 1 side contacts of adjustment bar are stretched into 608 one end of bar；It is additionally provided between 607 other end of eccentric block and end cap 604
Spring 605；
The mounting hole 6011 of drive block 602 is sleeved on the output shaft 506 of retarder 5,6012 He of axis pin of eccentric block 607
One end of No.1 connecting rod 7 is hinged.
End cap 604 is fixed on by the first screw 603 on drive block 602, and leaf spring 6010 is fixed on by the second screw 609
On drive block 602.
In the above-mentioned technical solutions, high-precision bias is realized in the adjusting that eccentric stiffener can be realized by adjusting screw rod 606
Amplitude adjusted；The end face of adjustment bar 601 is set to be close to adjusting screw rod 606 by the elastic force of leaf spring 6010, to realize adjustment bar
601 follow adjusting screw rod 606 to move and move；The adjusting and fixation of eccentric stiffener, standing screw are realized by standing screw 608
608 can realize the adjusting of eccentric stiffener when unclamping, the fixation of eccentric stiffener is realized after tightening；High-precision tune can be achieved in final adjust
The eccentric size for saving eccentric wheel, also can accurately adjust the width of 1002 side-to-side vibrations of basin shape connector of vibrating device 10 in this way
It spends to realize accurate luffing.In practical applications, the every turn of scale of adjusting screw rod 606, adjustment bar 601 can move to the left or to the right
Dynamic a distance can push eccentric block 607 downward since the contact surface between adjustment bar 601 and eccentric block 607 is inclined-plane
Or the distance of very little is moved up, to realize the accurate adjusting of eccentric wheel bias size.
As shown in Figure 10 to 11, lateral device for measuring force 8 includes pedestal 801, and pedestal 801 is bolted on bottom plate 13
On, dovetail groove 802 is bolted on pedestal 801, and No.1 sliding block 803 and No. two sliding blocks 805 are mounted on dovetail groove 802
It is interior, can be free to slide along dovetail groove 802, the both ends of tension-compression sensor 804 are separately fixed at No.1 sliding block 803 by bolt
On No. two sliding blocks 805, the other end of No.1 sliding block 803 and No.1 connecting rod 7 is hinged, No. two sliding blocks 805 and No. two companies
One end of bar 9 is hinged.High-precision adjusting eccentric wheel 6 is measured by the tension-compression sensor 804 of lateral device for measuring force 8 to cause
Cross force.
As shown in figs. 12-15, vibrating device 10 includes pedestal 1001, and pedestal 1001 is bolted on bottom plate 13,
It is connected by ball 1003 between 1002 top of basin shape connector and pedestal 1001 and is compressed by testing bolt 1004, pressure passes
Sensor 1005 is sleeved on outside screw rod fixture 1006, and screw rod fixture 1006 is mounted in the macropore of pedestal 1001 and limits its axis by key
To rotation, the screw rod of test bolt 1004 is mounted in screw rod fixture 1006, can not pass through pin around axial rotation, connecting shaft 1007
Nail is fixed on 1002 bottom of basin shape connector, and hinged with the other end of No. two connecting rods 9.
The top of basin shape connector 1002 is hollow rectangular plate-like structure, is fixedly connected and is useful for below hollow part
The cube groove of connecting shaft 1007, preferably cuboid groove structure is fixedly mounted, connection is fixedly mounted in bottom centre position
Axis 1007.In addition as shown in figure 13, it is preferable that basin shape connector 1002 can also be designed to the boss structure of inner hollow, even
Spindle 1007 can be arranged in the bottom of basin shape connector 1002.The structure of these types of basin shape connector 1002 is all conducive to No. two
Connecting rod 9 realizes tension and compression active force to test bolt 1004.
The quantity for testing bolt 1004 is four, is located at four of 1002 top rectangular platy structure of basin shape connector
Square position.
In the above-mentioned technical solutions, the connecting shaft for 1002 bottom of basin shape connector that No. two connecting rods 9 can be pulled or be pushed
1007, so that the rectangular slab left and right ends at 1002 top of basin shape connector constantly vibrate, and then drive test bolt 1004
Vibrate, it made constantly to be tensioned or loosen, at the same pressure sensor 1005 detection test bolt 1004 change pressing force or
Axial force is arranged ball 1003 between 1002 top of basin shape connector and pedestal 1001, can reduce basin shape connector in this way
The frictional force occurred with pedestal 1001 when 1002 vibration.
As shown in figure 16, angular displacement sensor device 11 includes column 1101, and column 1101 is fixed by screws in vibration
On the pedestal 1001 of device 10, angular displacement sensor 1103 is fixed on by connection sheet 1102 on column 1101.
Displacement of the lines sensing device 12 includes No.1 fixed block 1201, and No.1 fixed block 1201 is fixed by screws in vibration dress
It sets on 10 basin shape connector 1002, sheet metal 1203 is fixed on by connecting rod 1202 on No.1 fixed block 1201, and No. two solid
Determine block 1206 to be mounted on by screw on the pedestal 1001 of vibrating device 10, two induction coils 1205 pass through two link blocks
1204 are fixed on No. two fixed blocks 1206.
The measurement of nut loosening displacement is realized by angular displacement sensor device 11.Pass through angular displacement sensor device 11
Angular displacement sensor 1103 measures the angle of nut loosening, to further analyze the mechanism of bolt looseness.It is passed by displacement of the lines
Induction device 12 is realized to the 1002 oscillation crosswise amplitude of basin shape connector of vibrating device 10 and the measurement of frequency.It is passed by displacement of the lines
The induction coil 1205 of induction device 12 measures 1002 Oscillation Amplitude of basin shape connector and frequency of vibrating device 10, passes through oscillograph
It shows.
Claims (9)
1. bolt looseness tests vibration gauge under a kind of adjustable Dynamic High-accuracy tension and compression shearing force, it is characterised in that：
It includes variable-frequency motor（1）, the variable-frequency motor（1）It is bolted on bottom plate（13）On, small pulley（2）It is mounted on
Variable-frequency motor（1）Output shaft on, big belt wheel（4）Mounted on retarder（5）Input shaft on, the small pulley（2）With big band
Wheel（4）Between pass through band（3）It is connected；
High-accuracy adjustable eccentric wheel（6）Mounted on retarder（5）Output shaft on, high-accuracy adjustable eccentric wheel（6）It is defeated
Outlet and No.1 connecting rod（7）One end is hinged, the No.1 connecting rod（7）The other end and lateral device for measuring force（8）One end is hinged, described
Lateral device for measuring force（8）The other end and No. two connecting rods（9）One end is hinged, No. two connecting rods（9）The other end and vibrating device
（10）One end is hinged, the vibrating device（10）On test bolt is installed（1004）, angular displacement sensor device（11）, line position
Move sensing device（12）Bolt is tested with for measuring（1004）The pressure sensor of suffered axial force（1005）；
The high-accuracy adjustable eccentric wheel（6）Including adjustment bar（601）, drive block（602）And eccentric block（607）, the drive
Motion block（602）Including two pieces in the concave-board being oppositely arranged, end cap（604）It is fixedly mounted on drive block（602）Two pieces of grooves
The end of plate, the eccentric block（607）Mounted on drive block（602）Two pieces of concave-boards between, adjustment bar（601）Mounted on drive
Motion block（602）And eccentric block（607）Inside, and adjustment bar（601）With eccentric block（607）Between contact surface be inclined-plane；
Drive block（602）Side is equipped with adjusting screw rod（606）, adjusting screw rod（606）With drive block（602）It is threadedly coupled, and adjusts
Save screw rod（606）Drive block is stretched into one end（602）With adjustment bar（601）End thereof contacts, adjustment bar（601）The other end passes through driving
Block（602）The other side and it is fixed on drive block（602）On leaf spring（6010）Contact；
Eccentric block（607）One end is equipped with standing screw（608）, standing screw（608）With eccentric block（607）It is threadedly coupled, and solid
Determine screw rod（608）Eccentric block is stretched into one end（607）With adjustment bar（601）One side contacts；Eccentric block（607）The other end and end cap
（604）Between be additionally provided with spring（605）；
Drive block（602）Mounting hole（6011）It is sleeved on retarder（5）Output shaft（506）On, eccentric block（607）Axis pin
（6012）With No.1 connecting rod（7）One end it is hinged.
2. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 1,
It is characterized in that：The retarder（5）Including retarder pedestal（501）, retarder pedestal（501）It is bolted on bottom plate
（13）On, input shaft（502）And output shaft（506）Pass through bearing（503）Mounted on retarder pedestal（501）On, pinion gear
（504）And gear wheel（505）It is separately mounted to input shaft（502）And output shaft（506）Above and pass through axle sleeve and hubcap（507）
Carry out axially position, retarder upper cover（508）It is bolted on retarder pedestal（501）On.
3. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 1,
It is characterized in that：The end cap（604）Pass through the first screw（603）It is fixed on drive block（602）On, the leaf spring（6010）It is logical
Cross the second screw（609）It is fixed on drive block（602）On.
4. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 1,
It is characterized in that：The transverse direction device for measuring force（8）Including pedestal（801）, pedestal（801）It is bolted on bottom plate（13）
On, dovetail groove（802）It is bolted on pedestal（801）On, No.1 sliding block（803）With No. two sliding blocks（805）Mounted on swallow
Stern notch（802）It is interior, it can be along dovetail groove（802）It is free to slide, tension-compression sensor（804）Both ends fixed respectively by bolt
In No.1 sliding block（803）With No. two sliding blocks（805）On, No.1 sliding block（803）With No.1 connecting rod（7）The other end be hinged on one
It rises, No. two sliding blocks（805）With No. two connecting rods（9）One end it is hinged.
5. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 1,
It is characterized in that：The vibrating device（10）Including pedestal（1001）, pedestal（1001）It is bolted on bottom plate（13）On,
Basin shape connector（1002）Top and pedestal（1001）Between pass through ball（1003）It is connected and by testing bolt（1004）Pressure
Tightly, pressure sensor（1005）It is sleeved on screw rod fixture（1006）Outside, screw rod fixture（1006）Mounted on pedestal（1001）Macropore
It is interior and its axial rotation is limited by key, test bolt（1004）Screw rod be mounted on screw rod fixture（1006）It is interior, it can not be around axis
To rotation, connecting shaft（1007）It is fixed by a pin to basin shape connector（1002）Bottom, and with No. two connecting rods（9）The other end
It is hinged.
6. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 5,
It is characterized in that：The basin shape connector（1002）Top be hollow rectangular plate-like structure, it is fixed below hollow part
It is connected with for connecting shaft to be fixedly mounted（1007）Cube groove.
7. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 6,
It is characterized in that：The test bolt（1004）Quantity be four, be located at basin shape connector（1002）Top rectangular plate
Four square positions of shape structure.
8. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 1,
It is characterized in that：The angular displacement sensor device（11）Including column（1101）, column（1101）It is fixed by screws in and shakes
Dynamic device（10）Pedestal（1001）On, angular displacement sensor（1103）Pass through connection sheet（1102）It is fixed on column（1101）
On.
9. bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force according to claim 1,
It is characterized in that：The displacement of the lines sensing device（12）Including No.1 fixed block（1201）, No.1 fixed block（1201）Pass through spiral shell
Nail is fixed on vibrating device（10）Basin shape connector（1002）On, sheet metal（1203）Pass through connecting rod（1202）It is fixed on one
Number fixed block（1201）On, No. two fixed blocks（1206）It is mounted on vibrating device by screw（10）Pedestal（1001）On, two
A induction coil（1205）Pass through two link blocks（1204）It is fixed on No. two fixed blocks（1206）On.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807349.5A CN106441838B (en) | 2016-09-07 | 2016-09-07 | Bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807349.5A CN106441838B (en) | 2016-09-07 | 2016-09-07 | Bolt looseness tests vibration gauge under adjustable Dynamic High-accuracy tension and compression shearing force |
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| CN106441838B true CN106441838B (en) | 2018-08-07 |
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|---|---|---|---|---|
| CN106950046A (en) * | 2017-03-09 | 2017-07-14 | 西南交通大学 | A kind of loosening test clamping device of the lower bolt-connection of lateral load effect |
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