CN106323615B - A kind of scattered cable saddle swing test method of pivoted axle - Google Patents
A kind of scattered cable saddle swing test method of pivoted axle Download PDFInfo
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- CN106323615B CN106323615B CN201610712350.XA CN201610712350A CN106323615B CN 106323615 B CN106323615 B CN 106323615B CN 201610712350 A CN201610712350 A CN 201610712350A CN 106323615 B CN106323615 B CN 106323615B
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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
The invention discloses a kind of pivoted axles to dissipate cable saddle swing test method, and the test method includes：First, each building block that inspection participates in the scattered cable saddle of pivoted axle of swing test is to process qualification and without damage；Calculate the theoretical swing difference in height that the swinging axle both sides bottoms An Ti are actively coupled between the edge top surface corresponding with pedestal at position；Secondly, qualified scattered cable saddle will be examined to be assembled on test platform, carries out the swing inclining experiment of saddle body；In swinging inclining experiment, swinging axle both sides are measured respectively be actively coupled edge to the pedestal at position and correspond to vertical range between top surface, calculate the practical swing difference in height that swinging axle both sides are actively coupled between the edge top surface corresponding with pedestal at position；Then, theoretical difference in height and the practical difference in height that swings of swinging obtained is compared as the following formula, the manufactured swing requirement for dissipating cable saddle and whether meeting design of analysis is sentenced with this.Not only versatility is good by the present invention, but also the test result obtained is true, accurate, reliable.
Description
Technical field
The present invention relates to the detection test methods that pivoted axle dissipates cable saddle swing performance.
Background technology
Pivoted axle dissipates cable saddle and is usually applied in earth anchored suspension bridge engineering, the support being arranged between end bay and anchor span
On platform, support is provided for main push-towing rope, enable the change of main push-towing rope linear irregularity and is dissipated at anchor ingot.Cable saddle is dissipated based on pivoted axle
Role in earth anchored suspension bridge engineering exists, when bridge floor is by dynamic load, it is desirable that the pivoted axle of main push-towing rope is supported to dissipate rope
Small angle offset occurs for saddle, so that the stress of full-bridge reaches balance.
It can realize that the drift angle of design requirement is swung in order to ensure dissipating cable saddle applied to the pivoted axle in suspension bridge engineering, dissipate
Cable saddle manufacturer needs to be detected experiment in factory to the scattered cable saddle of manufactured molding pivoted axle after product manufacturing molding,
It carries out checking and accepting in factory, after product by that can dispatch from the factory, apply after being checked and accepted in factory, manufacture is ensured with this, is applied to suspension bridge work
Scattered cable saddle in journey is certified products, and then ensures the safety of suspension bridge engineering.
It is that steel pin oscillating axle type dissipates cable saddle that common pivoted axle, which dissipates cable saddle, is seen figure 1 and figure 2, mainly by saddle body, cloth
The top deck in board embedding slot that is placed on saddle body bottom plate bottom surface, pedestal, in the board embedding slot that is arranged on base top surface
Bottom deck and the tapered steel pin bank that is movably linked together bottom deck and top deck at；Its pedestal is small, saddle body is big and saddle
Weight is nearly hundred tons big.Cable saddle is dissipated for this structure, cable saddle manufacturer is dissipated and carries out checking and accepting taken technological means in factory being simulation
Swing test as shown in Figure 8 pacifies pedestal 5, bottom deck 4, taper steel pin 3 and top deck 2 specifically on test platform successively
Dress is combined, and top deck 2 on bottom deck 4 with the left and right swing that taper steel pin is 3 swinging axles, measure and remember
Swing difference in height of the top deck 2 on bottom deck 4 is recorded, is simulated with this and sentences the drift angle the pendulum whether manufactured scattered cable saddle of analysis meets design
It is dynamic to require.Aforementioned test methods are only capable of dissipating the swing test that cable saddle is simulated for steel pin oscillating axle type, can not be applied to it
The pivoted axle of its structure dissipates cable saddle, such as virtual oscillating axle type dissipates cable saddle, poor universality；Moreover, aforementioned test methods are obtained
Test result be only the reference data simulated, cannot effectively and reliably molding scattered cable saddle manufactured by actual response it is inclined
Whether angular oscillatory motion meets design requirement, and accuracy and reliability is poor.
Invention content
The goal of the invention of the present invention is：In view of the above shortcomings of the prior art, provide that a kind of versatility is good, is tried
Test real result, the accurately and reliably scattered cable saddle swing test method of pivoted axle.
The technical solution adopted in the present invention is a kind of scattered cable saddle swing test method of pivoted axle, the swing test side
Method includes：
First, it is to process qualification and without damage to examine each building block for the scattered cable saddle for participating in swing test；It counts as the following formula
Calculate the theoretical swing difference in height that the swinging axle both sides bottoms An Ti are actively coupled between the edge top surface corresponding with pedestal at position：△
h=X*sin a；
In formula, △ h are that the swinging axle both sides bottoms An Ti of design requirement are actively coupled the edge top corresponding with pedestal at position
Theoretical swing difference in height between face；X is that saddle body bottom is actively coupled the effective width that position is actively coupled face；A sets for bridge
Count desired swing angle；
Secondly, qualified scattered cable saddle will be examined to be assembled on test platform, carries out the swing inclining experiment of saddle body；It is swinging
In inclining experiment, measure respectively the swinging axle both sides bottoms An Ti be actively coupled position edge to pedestal corresponds to it is vertical between top surface
The reality that the swinging axle both sides bottoms An Ti are actively coupled between the edge top surface corresponding with pedestal at position is calculated as follows out in straight distance
Border swings difference in height：△H=|H1-H2|；
In formula, △ H are the edge top corresponding with pedestal that the swinging axle both sides bottoms An Ti actually measured are actively coupled position
Practical swing difference in height between face；Edge to the pedestal that H1 is actively coupled position for the swinging axle side bottoms An Ti corresponds to top surface
Between vertical range；H2 is that the swinging axle other side bottoms An Ti are actively coupled edge to the pedestal at position and correspond between top surface
Vertical range；
Then, theoretical difference in height and the practical difference in height that swings of swinging obtained is compared as the following formula：△H≥△h；
Show manufactured deflection swing angle >=a of the saddle body on pedestal if meeting, the drift angle for meeting design swings requirement.
Cable saddle is dissipated specifically, the scattered cable saddle is steel pin oscillating axle type, the steel pin oscillating axle type dissipates cable saddle mainly by saddle
Body, the top deck in the board embedding slot being arranged on saddle body bottom plate, pedestal, in the board embedding slot that is arranged on base top surface
Bottom deck and the tapered steel pin bank that is movably linked together bottom deck and top deck at；The steel pin oscillating axle type dissipates
The swing test method of cable saddle specifically includes the following steps：
It is to process qualification and without damage that step 1., which examines each building block for the scattered cable saddle for participating in swing test,；It calculates
Theoretical swing difference in height between the edge top surface corresponding with pedestal of board embedding slot on the saddle body bottom plate of swinging axle both sides；
Step 2. rests easily within pedestal on test platform；Base top surface and bottom deck embedding slot are cleaned out；
Bottom deck is inlaid in the embedding slot of base top surface, keeps the arc-shaped curved surface of bottom deck upward；
Step 3. clears up more taper steel pins, inserts more taper steel pins are corresponding into each pin hole on bottom deck,
Make the conical section of taper steel pin upwards, be raised in the arc-shaped curved surface of bottom deck, and ensure to hold under the cylindrical section of taper steel pin is less than
The arc-shaped curved surface of plate；
Step 4. installs the top deck cleaned out to the top of bottom deck, the bottom surface of top deck by taper steel pin
Linear contact is formed with the arc-shaped curved surface of bottom deck, and the two is with tapered steel pin-shaped at being actively coupled；Can top deck be tested under
Left and right swing is generated by swinging axle of taper steel pin on board, 5 are entered step if it can swing, if otherwise off-test；
Step 5. saddle body is lifted make to drop saddle body above pedestal, is delayed board embedding slot on saddle body bottom plate bottom surface with it is upper
Board is chimeric；It drawn on test platform respectively from swinging axle both ends with pulling equipment, support saddle body；It is set by the traction at both ends
Standby adjustment saddle body, makes the fit clearance phase between the edge of the board embedding slot on the bottom plate of swinging axle both sides top surface corresponding with pedestal
Deng；
Step 6. makes saddle body generate certain inclination to one end by the pulling equipment at both ends, measures heeling condition respectively
Edge to the pedestal of board embedding slot on the bottom plate of bottom moving axis both sides corresponds to the vertical range between top surface；By measured
Vertical range calculates the reality between the edge top surface corresponding with pedestal of the board embedding slot on the saddle body bottom plate of swinging axle both sides
Swing difference in height；
Theoretical difference in height and the practical difference in height that swings of swinging obtained is compared by step 7., if practical swing height
Degree is poor >=theoretical to swing difference in height, then shows that manufactured deflection swing angle of the saddle body on pedestal meets the drift angle of design requirement
It swings.Further, the taper steel pin in step 3 is coated with lubricating oil.In top deck rocking test operation in step 4, record
Swing difference in height of the top deck on bottom deck.
Alternatively, specifically, the scattered cable saddle, which is virtual oscillating axle type, dissipates cable saddle, it is main that the virtual oscillating axle type dissipates cable saddle
It is made of saddle body and pedestal, the bottom plate of saddle body bottom is equipped with lateral connection groove, and the top surface of the pedestal is equipped with top
Face is connection boss arc-shaped curved surface structure and corresponding with connection groove, and the saddle body is assemblied in bottom by connection groove
The top of seat, couples formation straight contact relationship between the arc-shaped curved surface of boss and the bottom surface of connection groove, which is saddle body
The virtual balance staff being actively coupled between pedestal；The swing test method of the scattered cable saddle of the virtual oscillating axle type specifically includes following
Step：
It is to process qualification and without damage that step 1., which examines each building block for the scattered cable saddle for participating in swing test,；It calculates
Theoretical swing difference in height between the edge top surface corresponding with pedestal of connection groove bottom surface on the saddle body bottom plate of swinging axle both sides；
Step 2. rests easily within pedestal on test platform；Base top surface and the top surface cleaning for coupling boss is dry
Only；
Step 3. cleans out the connection groove on saddle body bottom plate；Saddle body is hung to above pedestal, delays drop saddle body, makes
Connection groove on saddle body bottom plate is chimeric with the connection boss on base top surface；It is being tried respectively from swinging axle both ends with pulling equipment
It tests on platform and draws, supports saddle body；Saddle body is adjusted by the pulling equipment at both ends, makes the connection groove on the bottom plate of swinging axle both sides
Fit clearance between the edge of bottom surface top surface corresponding with pedestal is equal；
Step 4. makes saddle body generate certain inclination to one end by the pulling equipment at both ends, measures heeling condition respectively
Edge to the pedestal of connection groove bottom surface on the bottom plate of bottom moving axis both sides corresponds to the vertical range between top surface；By measured
Vertical range calculate between the edge top surface corresponding with pedestal of the connection groove bottom surface on the saddle body bottom plate of swinging axle both sides
It is practical to swing difference in height；
Theoretical difference in height and the practical difference in height that swings of swinging obtained is compared by step 5., if practical swing height
Degree is poor >=theoretical to swing difference in height, then shows that manufactured deflection swing angle of the saddle body on pedestal meets the drift angle of design requirement
It swings.Further, it is coated with lubricating oil on the contact surface of the connection groove and/or connection boss.
The saddle body is connect in swing test with lifting appliance, is prevented the saddle body in swing test by lifting appliance
The pre- protection of rollover.
The pulling equipment is bottle gouard moved by hands.
The saddle body is more than 1 ° to the inclined angle of inclination in side.
The beneficial effects of the invention are as follows：Above-mentioned test method can be applied not only to various pivoted axles and dissipate cable saddle, versatility
It is good；Moreover, the test result that it is obtained accurately and reliably can go out the scattered cable saddle of manufactured molding pivoted axle by actual response
Whether drift angle is swung meets design requirement, and accuracy and reliability is high, highly practical.
Description of the drawings
The present invention will be further described below with reference to the drawings.
Fig. 1 is the structural schematic diagram that steel pin oscillating axle type dissipates cable saddle.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural schematic diagram for dissipating cable saddle shown in Fig. 1 and Fig. 2 and carrying out the original state of swing test with the present invention.
Fig. 4 is the enlarged drawing of part D in Fig. 3.
Fig. 5 is the structural schematic diagram for dissipating cable saddle shown in Fig. 1 and Fig. 2 and carrying out the heeling condition of swing test with the present invention.
Fig. 6 is the enlarged drawing of part E in Fig. 5.
Fig. 7 is the structural schematic diagram that virtual oscillating axle type dissipates cable saddle.
Fig. 8 is the structural schematic diagram for dissipating cable saddle shown in Fig. 1 and Fig. 2 and carrying out swing test in existing swing test method.
Code name meaning in figure：1-saddle body；2-top decks；3-taper steel pins；4-bottom decks；5-pedestals；6-bottom plates；
7-pulling equipments；8-saddle body engaging lugs；9-test platforms；10-ground engaging lugs；11-connection grooves；12-connections are convex
Platform.
Specific implementation mode
Embodiment 1
The present invention is the swing test method that pivoted axle dissipates cable saddle.The scattered cable saddle is that steel pin oscillating axle type dissipates cable saddle,
Shown in referring to Fig. 1 and Fig. 2：The steel pin oscillating axle type dissipates cable saddle mainly by saddle body 1, top deck 2, taper steel pin 3,4 and of bottom deck
Pedestal 5 forms；The bottom of saddle body 1 is equipped with bottom plate 6, and transverse direction is offered in the bottom surface of bottom plate 6（With respect to the longitudinal direction that main push-towing rope extends
Speech）Board embedding slot；The top surface of pedestal 5 also offers lateral board embedding slot, and the embedding slot of the two corresponds；On hold
Plate 2 is inlaid in the board embedding slot in 1 bottom base panel 6 of saddle body, and the bottom surface of top deck 2 is plane, in the width of top deck 2
The circular hole equipped with multiple diameters about 50mm is spaced apart on line；The top surface of bottom deck 4 is arc-shaped curved surface, and bottom deck 4 is inlaid in pedestal 5
In board embedding slot on top surface, the arc-shaped curved surface of bottom deck 4 is upward, is spaced apart equipped with more in the width center line of bottom deck 4
The circular hole of a diameter about 50mm；Top deck 2 and bottom deck 4 are connected to one by the taper steel pin 3 assembled in corresponding aperture two-by-two
It rises, taper steel pin 3 is divided into cylindrical section and conical section in length, and cylindrical section is for being packed into bottom deck 4, conical section is used to be packed into
In top deck 2, so that the baseplane of top deck 2 and the arc top surface of bottom deck 4 is formed linear contact with this, realize saddle body 1 and bottom
Being actively coupled between seat 5, drift angle of the saddle body 1 on pedestal 5, which is swung with the taper steel pin 3 between top deck 2 and bottom deck 4, is
Swinging axle.
The test requirements document of the swing test is：Above-mentioned steel pin oscillating axle type dissipate the saddle body 1 of cable saddle, top deck 2, under hold
Plate 4, taper steel pin 3 and pedestal 5 combine integral carry out swing test, it is desirable that and deflection swing angle of the saddle body 1 on pedestal 5 >=
1 °, such as 1 °, 1.1 ° or 1.2 ° etc..Also that is, above-mentioned steel pin oscillating axle type, which dissipates cable saddle, participates in the building block of swing test at least
Including saddle body 1, top deck 2, bottom deck 4, taper steel pin 3 and pedestal 5.
Shown in Fig. 3 to Fig. 6, the swing test method that above-mentioned steel pin oscillating axle type dissipates cable saddle specifically includes following step
Suddenly：
Step 1. determines test platform 9, in the peripheral disposition safe-guard line of test platform 9, clears up in test area
Non-test article is forbidden irrelevant personnel to enter test area, irrelevant personnel is forbidden in test to walk about on test area periphery, is referred to
Determine special messenger and be responsible for entire experiment process, the lifting of each component must be commanded by professional to be operated, and all participants are necessary
Hard hat required at all times dresses labor protection articles for use；
Prepare test tool, the tooling for participating in experiment includes but not limited to：1. bottle gouard moved by hands（About 2 tons/6 meters）, quantity 2
Portion meets the requirement of JBT 7334-2007 standards；2. in the corresponding position difference anchoring ground engaging lug 10 of test platform 9, quantity
It is two；3.100 tons are driven a vehicle one；
Examine each building block for the scattered cable saddle for participating in swing test（I.e. include at least saddle body 1, top deck 2, bottom deck 4,
Taper steel pin 3 and pedestal 5）It is qualified for processing（Meet design requirement）And without damage（It collides with including nothing）；
Be calculated as follows out the board embedding slot on swinging axle both sides saddle body bottom plate 6 edge top surface corresponding with pedestal 1 it
Between theoretical swing difference in height：
△h=X*sin a；
In formula, △ h are that the edge of the board embedding slot on the swinging axle both sides saddle body bottom plate of design requirement is corresponding with pedestal
Theoretical swing difference in height between top surface, i.e., in the present embodiment, the board embedding slot on bottom plate is that saddle body bottom is actively coupled
Position；X is the effective width of 2 bottom surface of top deck, i.e., in the present embodiment, the bottom surface of top deck 2 is that saddle body bottom is actively coupled
Position is actively coupled face；A is the swing angle that Bridge Design requires（The swing angle of the design requirement of each bridge block is different）；
Pedestal 5 is hung to the designated position in 9 test area of test platform by step 2., is steadily put on test platform 9
It sets；
Using pneumatic plant and clean rag, the top surface of pedestal 5 and bottom deck embedding slot are cleaned out；
Bottom deck 4 is cleared up using pneumatic plant and clean rag；
The bottom deck 4 cleaned out is hung to the top of pedestal 5, it is slow to fall board 4, so that bottom deck 4 is inlaid in the top of pedestal 5
In the embedding slot in face, and keep top surface-arc-shaped curved surface of bottom deck upward；
Step 3. clears up more taper steel pins 3, in the surface smear lubricating oil for the taper steel pin 3 cleaned out；
Insert more taper steel pins 3 are corresponding into each pin hole on bottom deck 4, make the conical section of taper steel pin 3 to
Above, it is raised in the arc-shaped curved surface of bottom deck 4, and ensures that the cylindrical section of taper steel pin 3 is less than the arc-shaped curved surface of bottom deck 4, entirely
Notice that protection taper steel pin 3 is without damage in the process；
Step 4. clears up top deck 2 using pneumatic plant and clean rag；
The top deck 2 cleaned out is hung to the top of bottom deck 4, makes the pin hole on top deck 2 and the pin on bottom deck 4
Hole and taper steel pin 3 make 3 corresponding insertion top deck 2 of the taper steel pin inserted on bottom deck 4 to just, delaying drop top deck 2
In, top deck 2 is installed by taper steel pin 3 to the top of bottom deck 4 with this, checks and confirms upper and lower board and taper steel pin 3
The arc-shaped curved surface of the bottom surface and bottom deck 4 that are respectively mounted the top deck 2 in place, being installed in place forms linear contact, and the two is with taper
The formation of steel pin 3 is actively coupled；
The clamping tooling of clamping swing test on top deck 2 is clamped top deck 2 with the clamping tooling of swing test, surveys
Can try top deck 2 generate left and right swing with taper steel pin 3 on bottom deck 4 for swinging axle, if can swing, and record and hold
Swing difference in height of the plate 2 on bottom deck 4, is prepared to enter into step 5, if otherwise off-test；
Clamping tooling is removed from top deck 2, and top deck 2 is cleared up using pneumatic plant and clean rag again；
The both sides and both ends of step 5. saddle body 1 are respectively arranged with saddle body engaging lug 8, and the saddle body engaging lug of both sides is in saddle
On the opposite side of slot, the saddle body engaging lug 8 at both ends is on the end face of the longitudinal both ends of saddle body 1（It is typically located at below saddle slot）；
The saddle body engaging lug of 1 both sides of saddle body is connected by steel wire rope and driving, two bottle gouards moved by hands are connected to saddle body 1
On the saddle body engaging lug 8 at both ends；Aforementioned saddle body engaging lug unloads buckle structure to be U-shaped；
Saddle body 1 is lifted to the top of pedestal 5 using driving, makes the board embedding slot and pedestal in 1 bottom base panel 6 of saddle body
The top deck 2 of 5 top movables connection is corresponding；Slow drop saddle body 1, the position of random adjustment saddle body 1, finally makes during slow drop
Board embedding slot on 1 bottom base panel of saddle body, 6 bottom surface is chimeric with top deck 2, it is ensured that the bottom of the board embedding slot on 6 bottom surface of bottom plate
Face is contacted with the top surface forming face of top deck 2；
The pulling equipment 7- bottle gouards moved by hands that 1 both ends end face of saddle body is connected are respectively connected to corresponding on test platform 9
On ground engaging lug 10, the length of bottle gouard moved by hands steel wire rope is adjusted, to which saddle body 1 is flat in experiment respectively from swinging axle both ends
Traction, support are formed on platform 9；
The A points and B points on 6 bottom surface of swinging axle both sides bottom plate are measured respectively（It is in the board embedding slot on bottom plate 6 respectively
At the mouth rim of both sides）Top surface is corresponded to pedestal 5（The top surface of pedestal 5 is as reference plane C）Between vertical range, it is ensured that swing
The fit clearance H between A points and B points top surface C points corresponding with pedestal 5 on 6 bottom surface of axis both sides bottom plate is equal, if unequal,
Saddle body 1 is adjusted by the bottle gouard moved by hands at 1 both ends of saddle body；
Step 6. slowly declines the suspension hook of driving（It does not break off relations）, the bottle gouard moved by hands at 1 both ends of saddle body is adjusted, saddle body 1 to one is made
End（Exemplary in figure is the small head end of saddle slot）The inclination that drift angle is more than 1 ° is generated, as long as deflection angle of oscillation of the saddle body 1 on pedestal 5
Degree, which is more than 1 °, can stop wallowing motion；
In tilting procedure, measure under heeling condition repeatedly, respectively, the A points on 6 bottom surface of swinging axle both sides bottom plate and B points
The vertical range between top surface C points is corresponded to pedestal 5, by measured value complete documentation；Final obtain stops wallowing motion state
Under 6 bottom surface of swinging axle both sides bottom plate on A points and B points the vertical range between top surface C points, i.e. H1 and H2 are corresponded to pedestal 5；
It is calculated as follows out between the A points on 6 bottom surface of swinging axle both sides saddle body bottom plate and B points top surface C points corresponding with pedestal 5
Practical swing difference in height：
△H=|H1-H2|；
In formula, △ H are that the edge of the board embedding slot on the swinging axle both sides saddle body bottom plate actually measured is corresponding with pedestal
Practical swing difference in height between top surface, i.e., in the present embodiment, the board embedding slot on bottom plate are that saddle body bottom is actively coupled
Position；
H1 is the A points on the saddle body bottom plate bottom surface of swinging axle side（It is in the side oral area side of the board embedding slot on bottom plate
At edge）The vertical range between top surface C points is corresponded to pedestal；
H2 is the B points on the saddle body bottom plate bottom surface of the swinging axle other side（It is in another side port of the board embedding slot on bottom plate
Portion edge）The vertical range between top surface C points is corresponded to pedestal；
The theoretical difference in height △ h and practical difference in height △ H that swing that swing obtained are compared by step 7., are compared
Relational expression is：△H≥△h；If meeting this relational expression, show that manufactured deflection swing angle of the saddle body 1 on pedestal 5 meets
The drift angle of design requirement is swung, and can be dispatched from the factory, be applied；If this relational expression cannot be met, show manufactured saddle body 1 in pedestal 5
On deflection swing angle do not meet design requirement drift angle swing, can not be applied to suspension bridge engineering, cannot dispatch from the factory, need to return
Work processing；
Experiment finishes, and slowly promotes saddle body 1 by driving a vehicle, while discharging the bottle gouard moved by hands at 1 both ends of saddle body, splits combination and exists
Scattered cable saddle together.
Embodiment 2
The present invention is the swing test method that pivoted axle dissipates cable saddle.The scattered cable saddle is that virtual oscillating axle type dissipates cable saddle,
It is shown in Figure 7：The virtual oscillating axle type dissipates cable saddle and is mainly made of saddle body 1 and pedestal 5；6 bottom surface of bottom plate of 1 bottom of saddle body is set
There is lateral connection groove 11, the isosceles trapezoid slot structure which is narrow base, oral area is wide；The top surface of pedestal 5 is equipped with
Top surface is connection boss 12 arc-shaped curved surface structure and corresponding with connection groove 11, that is, couples boss 12 and be raised in pedestal 5
Top surface；Saddle body 1 is assemblied in the top of pedestal 5 by the connection groove 11 on bottom plate 6, couples the arc-shaped curved surface and connection of boss 12
It connects and forms straight contact relationship, the virtual pendulum which is actively coupled between saddle body 1 and pedestal 5 between the bottom surface of groove 11
It is swinging axle that axis-, which contacts straight line,（The concrete structure for dissipating cable saddle can be found in Publication No. CN 105220614, and publication date is：
The patent document on January 6th, 2016）.
The test requirements document of the swing test is：Above-mentioned virtual oscillating axle type dissipates the saddle body 1 of cable saddle and pedestal 5 is combined into
It is whole to carry out swing test, it is desirable that deflection swing angle >=1 ° of the saddle body 1 on pedestal 5, such as 1 °, 1.1 ° or 1.2 °.Also that is,
Above-mentioned virtual oscillating axle type dissipates cable saddle and participates in the building block of swing test including at least saddle body 1 and pedestal 5.
The swing test method that above-mentioned virtual oscillating axle type dissipates cable saddle is not drawn individually, be can refer to steel pin oscillating axle type and is dissipated rope
Shown in Fig. 3 to Fig. 6 of saddle swing test；The swing test method that above-mentioned virtual oscillating axle type dissipates cable saddle specifically includes following step
Suddenly：
Step 1. determines test platform, in the peripheral disposition safe-guard line of test platform, clears up non-in test area
Test article forbids irrelevant personnel to enter test area, irrelevant personnel is forbidden in test to walk about on test area periphery, specifies
Special messenger is responsible for entire experiment process, and the lifting of each component must be commanded by professional to be operated, and all participants must wear
Good safety cap dresses labor protection articles for use；
Prepare test tool, the tooling for participating in experiment includes but not limited to：1. bottle gouard moved by hands（About 2 tons/6 meters）, quantity 2
Portion meets the requirement of JBT 7334-2007 standards；2. the corresponding position in test platform distinguishes anchoring ground engaging lug, quantity is
Two；3. big machine adds 100 tons to drive a vehicle one；
Examine each building block for the scattered cable saddle for participating in swing test（Include at least saddle body and pedestal）It is qualified for processing
（Meet design requirement）And without damage（It collides with including nothing）；
Be calculated as follows out the connection groove bottom surface on the saddle body bottom plate of swinging axle both sides edge top surface corresponding with pedestal it
Between theoretical swing difference in height：
△h=X*sin a；
In formula, △ h are the edge and pedestal pair of the connection groove bottom surface on the swinging axle both sides saddle body bottom plate of design requirement
The theoretical swing difference in height between top surface is answered, i.e., in the present embodiment, the connection groove on bottom plate is that saddle body bottom is actively coupled
Position, it is isosceles trapezoid slot to be actively coupled groove based on this, thus the point for calculating or measuring is the both sides of connection groove bottom surface
The both sides of the edge at edge rather than notch；X is the effective width of the connection groove bottom surface on bottom plate, i.e., in the present embodiment, bottom plate
On connection groove bottom surface be saddle body bottom be actively coupled position be actively coupled face；A is the angle of oscillation that Bridge Design requires
Degree（The swing angle of the design requirement of each bridge block is different）；
Pedestal is hung to the designated position in test platform test area by step 2., is steadily placed on test platform；
Using pneumatic plant and clean rag, the top surface of pedestal and connection boss are cleaned out；
The surface smear lubricating oil for the connection boss cleaned out；
Step 3. uses pneumatic plant and clean rag, and the connection groove on saddle body bottom plate bottom surface is cleaned out；
The both sides and both ends of saddle body are respectively arranged with saddle body engaging lug, and the saddle body engaging lug of both sides is in the opposite side of saddle slot
On face, the saddle body engaging lug at both ends is on the both ends end face of saddle body longitudinal direction（It is typically located at below saddle slot）；
The saddle body engaging lug of saddle body both sides is connected by steel wire rope and driving, two bottle gouards moved by hands are connected to saddle body two
On the saddle body engaging lug at end；Aforementioned saddle body engaging lug unloads buckle structure to be U-shaped；
Saddle body is lifted to the top of pedestal using driving, makes the connection of the connection groove and base top surface of saddle body bottom base panel
It is corresponding to connect boss；Slow drop saddle body, the position of random adjustment saddle body, finally makes on saddle body bottom base panel bottom surface during slow drop
Connection groove it is chimeric with the connection boss of base top surface, it is ensured that the planar base surface and base top surface of the connection groove on bottom plate bottom surface
The arc-shaped curved surface of connection boss forms straight line-line contact, and the two is actively coupled using the straight line contacted as swinging axle formation；
Pulling equipment-bottle gouard moved by hands that saddle body both ends end face is connected is respectively connected to corresponding ground on test platform
On engaging lug, adjust the length of bottle gouard moved by hands steel wire rope, to by saddle body from the swinging axle both ends shape on test platform respectively
At traction, support；
The A points and B points on the connection groove bottom surface on the saddle body bottom plate of swinging axle both sides are measured respectively（It is recessed that it is in connection respectively
At both sides of the edge in groove bottom, i.e., at the inner corner trim of both sides）To pedestal correspond to top surface between vertical range, it is ensured that swinging axle both sides
Fit clearance H between A points on connection groove bottom surface and B points top surface corresponding with pedestal is equal, if unequal, passes through saddle body
The bottle gouard moved by hands at both ends adjusts saddle body；
Step 4. slowly declines the suspension hook of driving（It does not break off relations）, the bottle gouard moved by hands at saddle body both ends is adjusted, makes saddle body to one end
（Exemplary in figure is the small head end of saddle slot）The inclination that drift angle is more than 1 ° is generated, as long as deflection swing angle of the saddle body on pedestal is big
It can stop wallowing motion in 1 °；
In tilting procedure, measure under heeling condition repeatedly, respectively, the A points on the connection groove bottom surface of swinging axle both sides and B
Point to pedestal correspond to top surface between vertical range, by measured value complete documentation；Final obtain stops under wallowing motion state
Swinging axle both sides connection groove bottom surface on A points and B points to pedestal correspond to top surface between vertical range, i.e. H1 and H2；
The A points on the connection groove bottom surface on the saddle body bottom plate of swinging axle both sides are calculated as follows out and B points are corresponding with pedestal
Practical swing difference in height between top surface：
△H=|H1-H2|；
In formula, △ H are the edge and pedestal pair of the connection groove bottom surface on the swinging axle both sides saddle body bottom plate actually measured
The practical swing difference in height between top surface is answered, i.e., in the present embodiment, the connection groove on bottom plate is that saddle body bottom is actively coupled
Position；
H1 be swinging axle side bottom plate on connection groove bottom edge A points to pedestal correspond to top surface between it is vertical away from
From；
H2 be swinging axle other side bottom plate on connection groove bottom edge B points to pedestal correspond to top surface between it is vertical away from
From；
The theoretical difference in height △ h and practical difference in height △ H that swing that swing obtained are compared by step 5., are compared
Relational expression is：△H≥△h；If meeting this relational expression, shows that manufactured deflection swing angle of the saddle body on pedestal meets and set
The drift angle of meter, which is swung, to be required, and can be dispatched from the factory, be applied；If this relational expression cannot be met, show manufactured saddle body on pedestal
The drift angle that deflection swing angle does not meet design requirement is swung, and can not be applied to suspension bridge engineering, cannot be dispatched from the factory, need place of doing over again
Reason；
Experiment finishes, and slowly promotes saddle body by driving a vehicle, while discharging the bottle gouard moved by hands at saddle body both ends, splits combination one
The scattered cable saddle risen.
Lubricating oil in above-mentioned steps 2 can also be only applied in connection groove, alternatively, in connection groove and connection boss
Contact surface on common coating lubricating oil.
Calculating, measurement point position based on the present embodiment are on the bottom surface of connection groove（In groove）, thus saddle body with
When base combination, the end for being actively coupled position is not closed.
The above various embodiments is only to illustrate the present invention, rather than its limitations；Although with reference to the various embodiments described above to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：The present invention still can be to the various embodiments described above
In specific technical solution modify either equivalent replacement of some of the technical features and these modifications or replace
It changes, the spirit and scope of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of pivoted axle dissipates cable saddle swing test method, the swing test method includes：
First, it is to process qualification and without damage to examine each building block for the scattered cable saddle for participating in swing test；It is calculated as follows out
The swinging axle both sides bottoms An Ti are actively coupled the theoretical swing difference in height between the edge top surface corresponding with pedestal at position：△h=X*
sin a；
In formula, △ h be design requirement the swinging axle both sides bottoms An Ti be actively coupled position edge top surface corresponding with pedestal it
Between theoretical swing difference in height；X is that saddle body bottom is actively coupled the effective width that position is actively coupled face；A wants for Bridge Design
The swing angle asked；
Secondly, qualified scattered cable saddle will be examined to be assembled on test platform, carries out the swing inclining experiment of saddle body；It is tilted swinging
In experiment, measure respectively the swinging axle both sides bottoms An Ti be actively coupled position edge to pedestal correspond between top surface it is vertical away from
From the practical pendulum that the swinging axle both sides bottoms An Ti are actively coupled between the edge top surface corresponding with pedestal at position is calculated as follows out
Dynamic height is poor：△H=|H1-H2|；
In formula, △ H be the swinging axle both sides bottoms An Ti actually measured be actively coupled position edge top surface corresponding with pedestal it
Between practical swing difference in height；H1 is that the swinging axle side bottoms An Ti are actively coupled edge to the pedestal at position and correspond between top surface
Vertical range；H2 be the swinging axle other side bottoms An Ti be actively coupled position edge to pedestal correspond to it is vertical between top surface
Distance；
Then, theoretical difference in height and the practical difference in height that swings of swinging obtained is compared as the following formula：△H≥△h；If full
Sufficient then show manufactured deflection swing angle >=a of the saddle body on pedestal, the drift angle for meeting design swings and requires；
Cable saddle is dissipated it is characterized in that, the scattered cable saddle is steel pin oscillating axle type, the steel pin oscillating axle type dissipates cable saddle mainly by saddle
Body, the top deck in the board embedding slot being arranged on saddle body bottom plate, pedestal, in the board embedding slot that is arranged on base top surface
Bottom deck and the tapered steel pin bank that is movably linked together bottom deck and top deck at；The steel pin oscillating axle type dissipates
The swing test method of cable saddle specifically includes the following steps：
It is to process qualification and without damage that step 1., which examines each building block for the scattered cable saddle for participating in swing test,；Calculate swing
Theoretical swing difference in height between the edge top surface corresponding with pedestal of board embedding slot on the saddle body bottom plate of axis both sides；
Step 2. rests easily within pedestal on test platform；Base top surface and bottom deck embedding slot are cleaned out；Will under
Board is inlaid in the embedding slot of base top surface, keeps the arc-shaped curved surface of bottom deck upward；
Step 3. clears up more taper steel pins, inserts more taper steel pins are corresponding into each pin hole on bottom deck, makes cone
The conical section of shape steel pin is upward, is raised in the arc-shaped curved surface of bottom deck, and ensures the cylindrical section of taper steel pin less than bottom deck
Arc-shaped curved surface；
Step 4. installs the top deck cleaned out to the top of bottom deck by taper steel pin, and the bottom surface of top deck is under
The arc-shaped curved surface of board forms linear contact, and the two is with tapered steel pin-shaped at being actively coupled；Can top deck be tested in bottom deck
On by swinging axle of taper steel pin generate left and right swing, 5 are entered step if it can swing, if otherwise off-test；
Step 5. lifts saddle body to above pedestal, delays drop saddle body, makes the board embedding slot and top deck on saddle body bottom plate bottom surface
It is chimeric；It drawn on test platform respectively from swinging axle both ends with pulling equipment, support saddle body；Pass through the pulling equipment tune at both ends
Whole saddle body keeps the fit clearance between the edge and base top surface of the board embedding slot on the bottom plate of swinging axle both sides equal；
Step 6. makes saddle body generate certain inclination to one end by the pulling equipment at both ends, measures the heeling condition bottom respectively
Edge to the pedestal of board embedding slot on the bottom plate of moving axis both sides corresponds to the vertical range between top surface；By measured vertical
Distance calculates the practical swing between the edge top surface corresponding with pedestal of the board embedding slot on the saddle body bottom plate of swinging axle both sides
Difference in height；
Theoretical difference in height and the practical difference in height that swings of swinging obtained is compared by step 7., if practical swing difference in height
>=theory swings difference in height, then shows that manufactured deflection swing angle of the saddle body on pedestal meets the drift angle pendulum of design requirement
It is dynamic.
2. pivoted axle dissipates cable saddle swing test method according to claim 1, which is characterized in that the taper steel pin in step 3
It is coated with lubricating oil；In top deck rocking test operation in step 4, swing difference in height of the record top deck on bottom deck.
3. pivoted axle dissipates cable saddle swing test method according to claim 1, which is characterized in that the saddle body is in swing test
In connect with lifting appliance, by lifting appliance in swing test saddle body carry out anti-rollover pre- protection.
4. pivoted axle dissipates cable saddle swing test method according to claim 1, which is characterized in that the pulling equipment is manual
Cucurbit.
5. pivoted axle dissipates cable saddle swing test method according to claim 1, which is characterized in that the saddle body is tilted to side
Angle of inclination be more than 1 °.
6. a kind of pivoted axle dissipates cable saddle swing test method, the swing test method includes：
First, it is to process qualification and without damage to examine each building block for the scattered cable saddle for participating in swing test；It is calculated as follows out
The swinging axle both sides bottoms An Ti are actively coupled the theoretical swing difference in height between the edge top surface corresponding with pedestal at position：△h=X*
sin a；
In formula, △ h be design requirement the swinging axle both sides bottoms An Ti be actively coupled position edge top surface corresponding with pedestal it
Between theoretical swing difference in height；X is that saddle body bottom is actively coupled the effective width that position is actively coupled face；A wants for Bridge Design
The swing angle asked；
Secondly, qualified scattered cable saddle will be examined to be assembled on test platform, carries out the swing inclining experiment of saddle body；It is tilted swinging
In experiment, measure respectively the swinging axle both sides bottoms An Ti be actively coupled position edge to pedestal correspond between top surface it is vertical away from
From the practical pendulum that the swinging axle both sides bottoms An Ti are actively coupled between the edge top surface corresponding with pedestal at position is calculated as follows out
Dynamic height is poor：△H=|H1-H2|；
In formula, △ H be the swinging axle both sides bottoms An Ti actually measured be actively coupled position edge top surface corresponding with pedestal it
Between practical swing difference in height；H1 is that the swinging axle side bottoms An Ti are actively coupled edge to the pedestal at position and correspond between top surface
Vertical range；H2 be the swinging axle other side bottoms An Ti be actively coupled position edge to pedestal correspond to it is vertical between top surface
Distance；
Then, theoretical difference in height and the practical difference in height that swings of swinging obtained is compared as the following formula：△H≥△h；If full
Sufficient then show manufactured deflection swing angle >=a of the saddle body on pedestal, the drift angle for meeting design swings and requires；
Cable saddle is dissipated it is characterized in that, the scattered cable saddle is virtual oscillating axle type, the virtual oscillating axle type dissipates cable saddle mainly by saddle
Body and pedestal composition, the bottom plate of saddle body bottom are equipped with lateral connection groove, and the top surface of the pedestal is equipped with top surface
Connection boss arc-shaped curved surface structure and corresponding with connection groove, the saddle body are assemblied in pedestal by connection groove
Top, couples formation straight contact relationship between the arc-shaped curved surface of boss and the bottom surface of connection groove, which is saddle body and bottom
The virtual balance staff being actively coupled between seat；The swing test method that the virtual oscillating axle type dissipates cable saddle specifically includes following step
Suddenly：
It is to process qualification and without damage that step 1., which examines each building block for the scattered cable saddle for participating in swing test,；Calculate swing
Theoretical swing difference in height between the edge top surface corresponding with pedestal of connection groove bottom surface on the saddle body bottom plate of axis both sides；
Step 2. rests easily within pedestal on test platform；Base top surface and the top surface for coupling boss are cleaned out；
Step 3. cleans out the connection groove on saddle body bottom plate；Saddle body is hung to above pedestal, delays drop saddle body, makes saddle body
Connection groove on bottom plate is chimeric with the connection boss on base top surface；It is flat in experiment respectively from swinging axle both ends with pulling equipment
It drawn on platform, support saddle body；Saddle body is adjusted by the pulling equipment at both ends, makes the connection groove bottom surface on the bottom plate of swinging axle both sides
Edge top surface corresponding with pedestal between fit clearance it is equal；
Step 4. makes saddle body generate certain inclination to one end by the pulling equipment at both ends, measures the heeling condition bottom respectively
Edge to the pedestal of connection groove bottom surface on the bottom plate of moving axis both sides corresponds to the vertical range between top surface；It is hung down by measured
Straight distance calculates the reality between the edge top surface corresponding with pedestal of the connection groove bottom surface on the saddle body bottom plate of swinging axle both sides
Swing difference in height；
Theoretical difference in height and the practical difference in height that swings of swinging obtained is compared by step 5., if practical swing difference in height
>=theory swings difference in height, then shows that manufactured deflection swing angle of the saddle body on pedestal meets the drift angle pendulum of design requirement
It is dynamic.
7. pivoted axle dissipates cable saddle swing test method according to claim 6, which is characterized in that the connection groove and/or
Couple and is coated with lubricating oil on the contact surface of boss.
8. pivoted axle dissipates cable saddle swing test method according to claim 6, which is characterized in that the saddle body is in swing test
In connect with lifting appliance, by lifting appliance in swing test saddle body carry out anti-rollover pre- protection.
9. pivoted axle dissipates cable saddle swing test method according to claim 6, which is characterized in that the pulling equipment is manual
Cucurbit.
10. pivoted axle dissipates cable saddle swing test method according to claim 6, which is characterized in that the saddle body is rolled to one
Oblique angle of inclination is more than 1 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712350.XA CN106323615B (en) | 2016-08-24 | 2016-08-24 | A kind of scattered cable saddle swing test method of pivoted axle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712350.XA CN106323615B (en) | 2016-08-24 | 2016-08-24 | A kind of scattered cable saddle swing test method of pivoted axle |
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| Publication Number | Publication Date |
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| CN106323615B true CN106323615B (en) | 2018-09-07 |
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| CN111829945A (en) * | 2020-06-08 | 2020-10-27 | 德阳天元重工股份有限公司 | Anti-sliding behavior and mechanical characteristic test assembly and test method between main cable and saddle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220614A (en) * | 2014-12-23 | 2016-01-06 | 德阳天元重工股份有限公司 | A kind of pivoted axle falls apart cable saddle |
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2016
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220614A (en) * | 2014-12-23 | 2016-01-06 | 德阳天元重工股份有限公司 | A kind of pivoted axle falls apart cable saddle |
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| 《悬索桥索鞍设计制作主要问题及对策》;董小亮 等;《钢结构》;20150131(第1期);59-64 * |
| 吊头激励下的柔索摆系统建模与仿真;王立权 等;《上海交通大学学报》;20120930;第46卷(第9期);1416-1420 * |
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