CN109387382A - Framed intensity experimental rig based on centrepin loading mechanism - Google Patents
Framed intensity experimental rig based on centrepin loading mechanism Download PDFInfo
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- CN109387382A CN109387382A CN201811172959.8A CN201811172959A CN109387382A CN 109387382 A CN109387382 A CN 109387382A CN 201811172959 A CN201811172959 A CN 201811172959A CN 109387382 A CN109387382 A CN 109387382A
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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
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Framed intensity experimental rig based on centrepin loading mechanism belongs to the force loading device field of bogies for railway vehicles framed intensity test, it includes simulation centrepin loading mechanism, universal spherical support, lateral backstop spherical bearing, two stopping seat rubber pads, two force measurement type drawing pull bars, two cross force load actuation mechanisms and longitudinal counter-force bar, and the simulation centrepin loading mechanism includes tubular core bucket, dynamometry drawing pull bar seat, the symmetrical slope surface load seat of cross force, counter-force bar load hinged block and lateral backstop spherical bearing.Structure of the invention is exquisite, and compact layout is easily assembled operation and maintenance, can not only interfere and the larger problem of load cell time lag error to avoid member obstruction, moreover it is possible to substantially save manufacturing cost, increase test accuracy and improve productivity effect.
Description
Technical field
The invention belongs to the force loading device fields of bogies for railway vehicles framed intensity test, and in particular to Yi Zhongji
In the framed intensity experimental rig of centrepin loading mechanism.
Background technique
Since the bogie frame of rolling stock is bearing body weight, the core for transmitting tractive force and brake power
Part, therefore after the completion of its Theoretical Design, it usually also needs to carry out density of load test to the bogie frame of primiparity.To framework
When key structure carries out the load test of load load, it usually needs, X-axis transverse direction vertical along the Z axis of framework and Y-axis are three longitudinal
Direction exerts a force simultaneously, so as to the synthesis force environment born under continuous analog train in orbit environment, to examine steering
The reasonability of frame airframe dymanics structure, by obtaining the dynamic stress data of critical component and checking whether framework can generate fatigue
Crackle further identifies undiscovered tired risk point in structure design, and provides reference frame for Curve guide impeller.
Fig. 1 and it is shown in Fig. 2 be a kind of bogies for railway vehicles H-type framework A, main structure by header portion and
Two parallel curb girder Bs of the vertical welding in header portion both ends are constituted.Header portion is by the main cross of two parallel tubuloses
The structure of beam 1 and two groined types constituted perpendicular to the stringer 2 of main beam.The lower section of each main beam 1 is equipped with one
Group drawing pull bar seat 1-1, to be connected for the car body centrepin in the middle part of same insertion groined type structure.As shown in figure 3, in order to
Guarantee the balance of transmitting torque, two drawing pull bar seat 1-1 press the angle of circumference of 180 degree using the Z axis of framework A as rotary shaft each other
It is in a rotationally symmetrical arrangement.Transverse direction stopping seat 2-1 at one is respectively equipped on the opposing end surface of two stringers 2, in same car body
Lateral backstop docking on heart pin.In addition, being equipped with the gear-box mutually rotating being arranged symmetrically in each 2 opposite ends of stringer
It is in a rotationally symmetrical arrangement to be then equipped with this on the main beam 1 of the other opposite ends close position of each stringer 2 by flap seat 2-2
Motor hanger 1-2.
When carrying out density of load test for the framework A of above-mentioned H-type, need simultaneously to apply two drawing pull bar seat 1-1
Along the synchronous backward load force of Y-axis, and under the vibrating states such as jolt, reverse of framework A, simulate to lateral backstop
Position-limiting action of the seat 2-1 to the lateral backstop on car body centrepin.But due to the same motor hanger mutually rotating being arranged symmetrically
1-2 and gear box bracket 2-2 placement position are closer away from its neighbouring drawing pull bar seat 1-1, make to limit corresponding force
The arrangement space of dynamic device, and difficulty is increased with the design of force loading device to strength test.
To avoid stopping each other between multiple actuator interference, existing strength test is with force loading device using laterally
Loading mechanism design seperated with longitudinal loading mechanism, the mode being separately connected, X-axis transversely acting force loading device need to be using length
Tower structure could connect around the empty spring Plumb load cylinder at the center curb girder B with lateral stopping seat 2-1, but its is larger
Longitudinal span to will cause two lateral stopping seat 2-1 stresses asynchronous and bring asking for mechanical loading data inaccuracy
Topic.Existing Y-axis longitudinal force loading device also uses the biggish load attachment device of span from the X-axis two sides of framework A point
Not across corresponding motor hanger 1-2 and gear box bracket 2-2, this not only makes existing strength test force loading device
Whole occupied space is big, and manufacturing cost is high, and pressure sensor is only arranged in it on longitudinal counter-force bar, but two traction is drawn
Without pressure sensing on bar, therefore, whether two drawing pull bar seat 1-1 stress balance and are unable to monitor.
Summary of the invention
In order to which the X-axis transversely acting force loading device and the Y-axis that solve existing strength test force loading device are longitudinal
Effect force loading device be all made of seperated design, the mode being separately connected causes loading device entirety occupied space big, manufacture at
This height；It is asynchronous that longitudinal biggish X-axis transversely acting force loading device of span will cause two lateral stopping seat stresses, and
Bring the problem of mechanical loading data inaccuracy；And now there are two, without pressure sensing, therefore, two are led in drawing pull bar
Whether the pole socket stress that is pulled balances the technical issues of being unable to monitor, and the present invention provides a kind of framework based on centrepin loading mechanism
Strength test device.
The technical solution adopted for solving the technical problem of the present invention is as follows:
Framed intensity experimental rig based on centrepin loading mechanism comprising simulation centrepin loading mechanism, multi-directional ball
Shape support, lateral backstop spherical bearing, two stopping seat rubber pads, two force measurement type drawing pull bars, two cross force loads are made
Motivation structure and longitudinal counter-force bar, the simulation centrepin loading mechanism includes tubular core bucket, dynamometry drawing pull bar seat, cross force pair
Claim slope surface load seat, counter-force bar load hinged block and lateral backstop spherical bearing；Universal spherical support lower end and ground are connected, core
The lower end of bucket and universal spherical support are connected, and axis passes through the spherical pair mass center in universal spherical support；
The counter-force bar load hinged block includes that double hinged blocks and counter-force bar load end face, and counter-force bar loads end face radially
It is vertically fixed on the outer diameter side wall of double hinged blocks；End face is vertical is connected for the load of the rear end of longitudinal counter-force bar and counter-force bar；Double hinges
The coaxial nesting of axle bed and the top for being fixed on core bucket；
Lateral backstop spherical bearing includes that the lateral stopping seat axle sleeve cabinet of four prism type and two spherical pairs come directly towards, and two
Spherical pair top is connect with the left and right both ends of the surface center rotating of lateral stopping seat axle sleeve cabinet respectively: lateral stopping seat axle sleeve case
The upper and lower end face center of body is equipped with coaxial lateral stopping seat axle sleeve cabinet core axle hole；Lateral stopping seat axle sleeve cabinet mandrel
Hole is coaxial nested and is fixed on the outer diameter of core bucket；
Dynamometry drawing pull bar seat includes the drawing pull bar seat axle sleeve cabinet and two drawing pull bar attachment bases of four prism type, is led
The upper and lower end face center of pole socket axle sleeve cabinet of being pulled is equipped with drawing pull bar seat axle sleeve cabinet core axle hole；Two drawing pull bars connect
Joint chair is separately positioned on the forward and backward side wall of drawing pull bar seat axle sleeve cabinet, and the two is with drawing pull bar seat axle sleeve cabinet core
The axis of axis hole is rotary shaft, by the angle of circumference rotational symmetry of degree；Drawing pull bar seat axle sleeve cabinet core axle hole is coaxial nested and solid
It is connected on the outer diameter of core bucket；
Cross force symmetrical slope surface load seat is the axle sleeve cabinet that front and rear end is isosceles trapezoid, trapezoidal cabinet it is upper,
The center of lower end surface is equipped with slope surface load seat-box body core axle hole, presss from both sides as between left and right two stringcourse slope surfaces of trapezoidal stringcourse
Angle is 40 degree；Slope surface load seat-box body core axle hole is coaxial nested and is fixed on the outer diameter of core bucket；
The counter-force bar load hinged block, lateral backstop spherical bearing, dynamometry drawing pull bar seat and the symmetrical slope surface of cross force
Load seat is sequentially coaxial nested according to sequence from top to bottom and is fixed on the outer diameter side wall of core bucket；
Cross force load actuation mechanism includes cross force load cylinder and inclined-plane pedestal, the lower end and ground of inclined-plane pedestal
It is connected, the inclined end face of inclined-plane pedestal and ground are in 66 degree of angles；The lower end cylinder hinged block of each cross force load cylinder
It is connected with the inclined end face on an one-to-one inclined-plane pedestal；The upper end cylinder hinge of each cross force load cylinder
Axle bed is connected with an one-to-one stringcourse slope surface；
The cross force load actuation mechanism is symmetrically arranged at the arranged on left and right sides of simulation centrepin loading mechanism；It is longitudinal
Counter-force bar is arranged vertically within the front end of simulation centrepin loading mechanism in the horizontal direction.
The cross force load cylinder is in 66 degree of angles with level ground when stationary；Two spherical pair top difference
Longitudinal counter-force bar is each perpendicular to towards the axis of the arranged on left and right sides of simulation centrepin loading mechanism, and spherical pair top；Two are led
Be pulled bar attachment base axis each parallel to longitudinal counter-force bar.
The force measurement type drawing pull bar include two drawing pull bar attachment bases, two drawing pull bar connecting shafts, tension sensor,
Two long spiro nails and two short screws, one end of drawing pull bar attachment base are band internal thread connecting rods, and the other end, which is equipped with, to hang down
Directly in the drawing pull bar connecting shaft seat of connecting rod radial direction；The both ends of drawing pull bar connecting shaft are respectively equipped with screw hole, in drawing pull bar connecting shaft
Section connects with drawing pull bar connecting shaft seat axis；The screw rod at tension sensor both ends respectively on two drawing pull bar attachment bases have interior spiral shell
The connecting rod of line is threadedly coupled；Described two long spiro nails each along same direction respectively with the screw hole spiral shell on a drawing pull bar connecting shaft
Line connection, two short screws connect with the screw hole screw thread on another drawing pull bar connecting shaft along direction identical with long spiro nail respectively
It connects.
The beneficial effects of the present invention are: utilizing the framed intensity experimental rig pair of the invention based on centrepin loading mechanism
When the load test of the progress load load of framework, the X-axis horizontal force that actuation mechanisms are applied is loaded by two cross forces
Passed respectively through the symmetrical slope surface load seat of cross force, core bucket, dynamometry drawing pull bar seat and corresponding two tests with drawing pull bar
It is handed on two drawing pull bar seats on framework A, so as to avoid the intrinsic problem for stopping interference between multiple actuator each other.
Two drawing pull bar attachment bases on dynamometry drawing pull bar seat are arranged by the angle of circumference rotational symmetry of 180 degree, can be with
Two test drawing pull bars of corresponding installation are made to form the couple structure of a zigzag around the rotary shaft of core bucket, often
A drawing pull bar is simulated the work of its pulling force by true train traction pull rod to the tractive force operating distance and angle of framework A
With effect, and two equal synchronous acquisitions of tension sensor correspond to the Mechanical Data in test drawing pull bar, to avoid band
Carry out load cell time lag caused by the mechanotransduction approach and assembly precision deviation of original large span and error is larger
The problem of.
The lateral stopping seat of each stringer passes through corresponding stopping seat rubber pad spherical pair corresponding with one
Top contact, so that lateral backstop spherical bearing be enable to simulate lateral stopping seat in the vibrating states such as jolt, reverse of framework A
Under to the position-limiting action of the lateral backstop on true train body centrepin.
Simulate counter-force bar load hinged block on centrepin loading mechanism, lateral backstop spherical bearing, dynamometry drawing pull bar seat
With cross force symmetrical slope surface load seat according to the sequentially outer diameter side wall that is coaxial nested and being fixed on core bucket of sequence from top to bottom
On, delicate structure, compact layout are easily assembled operation and maintenance, not only can interfere and take up an area to avoid member obstruction
Larger problem, moreover it is possible to substantially save manufacturing cost, increase test accuracy and improve productivity effect.Machine should be loaded based on centrepin
Longitudinal counter-force bar of the framed intensity experimental rig of structure is loaded into the top of simulation centrepin loading mechanism along the y axis, thus
Realize the load of longitudinal force needed for testing, cooperation universal spherical support is used in conjunction with, so that simulation centrepin loads machine
Structure has the full freedom degree in XY two-dimensional space, to be more in line with the design requirement of strength test.
Furthermore being somebody's turn to do the framed intensity experimental rig based on centrepin loading mechanism also has simple and practical in structure, operation side
Just, low in cost, the advantages that convenient for popularizing.
Detailed description of the invention
Fig. 1 is the perspective view of existing framework A；
Fig. 2 is the top view of existing framework A；
Fig. 3 is perspective view of the existing framework A in the case where overturning visual angle；
Fig. 4 is the perspective view of the framed intensity experimental rig the present invention is based on centrepin loading mechanism；
Fig. 5 is the main body figure of the framed intensity experimental rig the present invention is based on centrepin loading mechanism；
Fig. 6 is the top view of the framed intensity experimental rig the present invention is based on centrepin loading mechanism；
Fig. 7 is the explosion assembling schematic diagram of Fig. 5；
Fig. 8 is the main view of cross force load actuation mechanism of the present invention:
Fig. 9 is present invention simulation centrepin loading mechanism and universal spherical support, two force measurement type drawing pull bars and not
The assembling schematic diagram of two force measurement type drawing pull bars comprising long spiro nail and short screw；
Figure 10 is the main view of present invention simulation centrepin loading mechanism:
Figure 11 is the explosion assembling schematic diagram of Figure 10；
Figure 12 is the perspective view of counter-force bar load hinged block of the present invention；
Figure 13 is the perspective view of lateral backstop spherical bearing of the invention；
Figure 14 is the perspective view of the symmetrical slope surface load seat of cross force of the present invention；
Figure 15 is the perspective view of dynamometry drawing pull bar seat of the present invention；
Figure 16 is the explosion assembling schematic diagram of force measurement type drawing pull bar of the present invention；
Figure 17 is that the present invention is based on the centrepin loading mechanisms of dynamometry drawing pull bar seat with schematic diagram；
Figure 18 is the assembling schematic diagram of Fig. 9；
Figure 19 is the solid in the case where overlooking visual angle of the framed intensity experimental rig the present invention is based on centrepin loading mechanism
Application schematic diagram；
Figure 20 is looking up under visual angle another for the framed intensity experimental rig the present invention is based on centrepin loading mechanism
Three-dimensional application schematic diagram.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing.
As shown in Fig. 4 to Figure 18, the framed intensity experimental rig of the invention based on centrepin loading mechanism includes simulation
Centrepin loading mechanism, universal spherical support 3, the lateral backstop force measurement type of stopping seat rubber pad 9, two of spherical bearing 8, two are led
10, the two cross force load actuation mechanisms 11 of bar that are pulled and longitudinal counter-force bar 12, the simulation centrepin loading mechanism include pipe
The symmetrical slope surface load seat 6 of shape core bucket 4, dynamometry drawing pull bar seat 5, cross force, counter-force bar load hinged block 7 and lateral backstop spherical surface
Support 8；3 lower end of universal spherical support and ground are connected, and the lower end of core bucket 4 and universal spherical support 3 are connected, and axis passes through ten thousand
Spherical pair mass center into spherical bearing 3.
The counter-force bar load hinged block 7 includes that double hinged block 7-1 and counter-force bar load end face 7-1, counter-force bar loading end
Face 7-1 is radially vertically fixed on the outer diameter side wall of double hinged block 7-1；The rear end of longitudinal counter-force bar 12 and counter-force bar loading end
Face 7-1 is vertically connected；The coaxial nesting of double hinged block 7-1 and the top for being fixed on core bucket 4.
Lateral backstop spherical bearing 8 includes that the lateral stopping seat axle sleeve cabinet 8-2 of four prism type and two spherical pairs come directly towards
8-1, two spherical pair top 8-1 are connect with the left and right both ends of the surface center rotating of lateral stopping seat axle sleeve cabinet 8-2 respectively: horizontal
Coaxial lateral stopping seat axle sleeve cabinet core axle hole 8-2-1 is equipped with to the upper and lower end face center of stopping seat axle sleeve cabinet 8-2；
Lateral stopping seat axle sleeve cabinet core axle hole 8-2-1 is coaxial nested and is fixed on the outer diameter of core bucket 4.
Dynamometry drawing pull bar seat 5 includes that the drawing pull bar seat axle sleeve cabinet 5-2 of four prism type and two drawing pull bars connect
Seat 5-1, the upper and lower end face center of drawing pull bar seat axle sleeve cabinet 5-2 are equipped with drawing pull bar seat axle sleeve cabinet core axle hole 5-2-
1；Two drawing pull bar attachment base 5-1 are separately positioned on the forward and backward side wall of drawing pull bar seat axle sleeve cabinet 5-2, and the two
Using the axis of drawing pull bar seat axle sleeve cabinet core axle hole 5-2-1 as rotary shaft, by the angle of circumference rotational symmetry of 180 degree；Traction is drawn
Pole socket axle sleeve cabinet core axle hole 5-2-1 is coaxial nested and is fixed on the outer diameter of core bucket 4.
The symmetrical slope surface load seat 6 of cross force is the axle sleeve cabinet that front and rear end is isosceles trapezoid, trapezoidal cabinet
The center of upper and lower end face is equipped with slope surface load seat-box body core axle hole 6-2, left and right two stringcourse slope surfaces as trapezoidal stringcourse
Angle is 40 degree between 6-1；Slope surface load seat-box body core axle hole 6-2 is coaxial nested and is fixed on the outer diameter of core bucket 4.
The counter-force bar load hinged block 7, lateral backstop spherical bearing 8, dynamometry drawing pull bar seat 5 and the symmetrical slope of cross force
Load seat 6 in face is sequentially coaxial nested according to sequence from top to bottom and is fixed on the outer diameter side wall of core bucket 4.
It includes that cross force loads cylinder 11-1 and inclined-plane pedestal 11-2, inclined-plane pedestal that cross force, which loads actuation mechanism 11,
The lower end and ground of 11-2 is connected, and the inclined end face of inclined-plane pedestal 11-2 and ground are in 66 degree of angles；Each cross force loads actuation
The lower end cylinder hinged block of cylinder 11-1 is connected with the inclined end face on an one-to-one inclined-plane pedestal 11-2；Each cross
It is connected to the upper end cylinder hinged block of power load cylinder 11-1 with an one-to-one stringcourse slope surface 6-1.
The cross force load actuation mechanism 11 is symmetrically arranged at the arranged on left and right sides of simulation centrepin loading mechanism；It is vertical
It is arranged vertically within the front end of simulation centrepin loading mechanism in the horizontal direction to counter-force bar 12.
The cross force load cylinder 11-1 is in 66 degree of angles with level ground when stationary；Two spherical pair tops
8-1 is respectively facing the arranged on left and right sides of simulation centrepin loading mechanism, and the axis of spherical pair top 8-1 is each perpendicular to longitudinal direction instead
Power bar 12；The axis of two drawing pull bar attachment base 5-1 is each parallel to longitudinal counter-force bar 12.
It is described test with drawing pull bar 10 include two drawing pull bar attachment base 10-1, two drawing pull bar connecting shaft 10-2,
Tension sensor 10-3, two long spiro nail 10-4 and two short screw 10-5, one end of drawing pull bar attachment base 10-1 is to have
Its other end of the connecting rod 10-1-1 of internal screw thread is equipped with the drawing pull bar connecting shaft seat 10-1-2 perpendicular to connecting rod radial direction；Drawing pull bar connects
The both ends of axis 10-2 are respectively equipped with screw hole, and the middle section of drawing pull bar connecting shaft 10-2 and drawing pull bar connecting shaft seat 10-1-2 axis connect；It draws
The screw rod at the both ends force snesor 10-3 respectively on two drawing pull bar attachment base 10-1 band internal thread connecting rod 10-1-1 spiral shell
Line connection；Described two long spiro nail 10-4 each along same direction respectively with the screw hole screw thread on a drawing pull bar connecting shaft 10-2
Connection, two short screw 10-5 are along direction identical with long spiro nail 10-4 respectively and on another drawing pull bar connecting shaft 10-2
Screw hole is threadedly coupled.
When the concrete application framed intensity experimental rig of the invention based on centrepin loading mechanism, by appearance shown in Figure 17
State is respectively tested two drawing pull bar attachment base 5-1 on dynamometry drawing pull bar seat 5 using short screw 10-5 with one respectively
It is connected with a drawing pull bar connecting shaft 10-2 corresponding in drawing pull bar 10, to be assembled into one based on dynamometry drawing pull bar
The centrepin loading mechanism of seat.Then, be connected on the lateral stopping seat 2-1 of each stringer 2 a stopping seat rubber respectively
Pad 9.Then, as shown in Figure 18 to Figure 20, simulation centrepin loading mechanism of the invention is simultaneously inserted into framework A's by lifting frame A
In the structure of groined type, and make lateral 8 two sides of backstop spherical bearing each spherical pair come directly towards 8-1 respectively with a stopping seat rubber
The corresponding contact of rubber mat 9, then benefit long spiro nail 10-4 is by each test another drawing pull bar connecting shaft corresponding in drawing pull bar 10
10-2 is connected with the drawing pull bar seat 1-1 on main beam 1 respectively.3 universal spherical support of universal spherical support is using in Changchun
The FA3-0001 type everything ball seat of vehicle commander visitor's mold Co., Ltd production.
Claims (3)
1. the framed intensity experimental rig based on centrepin loading mechanism, it is characterised in that: the device includes that simulation centrepin adds
Mounted mechanism, universal spherical support (3), lateral backstop spherical bearing (8), two stopping seat rubber pads (9), two force measurement type tractions
Pull rod (10), two cross force loads actuation mechanism (11) and longitudinal counter-force bar (12), the simulation centrepin loading mechanism packet
Include tubular core bucket (4), dynamometry drawing pull bar seat (5), cross force symmetrical slope surface load seat (6), counter-force bar load hinged block (7) and
Lateral backstop spherical bearing (8)；Universal spherical support (3) lower end and ground are connected, the lower end of core bucket (4) and universal spherical support
(3) it is connected, axis passes through the spherical pair mass center in universal spherical support (3)；
Counter-force bar load hinged block (7) includes double hinged blocks (7-1) and counter-force bar load end face (7-1), the load of counter-force bar
End face (7-1) is radially vertically fixed on the outer diameter side wall of double hinged blocks (7-1)；The rear end of longitudinal counter-force bar (12) and counter-force
Bar loads end face (7-1) and is vertically connected；The coaxial nesting of double hinged blocks (7-1) and the top for being fixed on core bucket (4)；
Lateral backstop spherical bearing (8) includes that the lateral stopping seat axle sleeve cabinet (8-2) of four prism type and two spherical pairs come directly towards
(8-1), two spherical pair tops (8-1) connect with the left and right both ends of the surface center rotating of lateral stopping seat axle sleeve cabinet (8-2) respectively
Connect: the upper and lower end face center of lateral stopping seat axle sleeve cabinet (8-2) is equipped with coaxial lateral stopping seat axle sleeve cabinet core axle hole
(8-2-1)；Lateral stopping seat axle sleeve cabinet core axle hole (8-2-1) is coaxial nested and is fixed on the outer diameter of core bucket (4)；
Dynamometry drawing pull bar seat (5) includes that the drawing pull bar seat axle sleeve cabinet (5-2) of four prism type is connected with two drawing pull bars
Seat (5-1), the upper and lower end face center of drawing pull bar seat axle sleeve cabinet (5-2) are equipped with drawing pull bar seat axle sleeve cabinet core axle hole
(5-2-1)；Two drawing pull bar attachment bases (5-1) are separately positioned on the forward and backward side wall of drawing pull bar seat axle sleeve cabinet (5-2)
On, and the two is revolved using the axis of drawing pull bar seat axle sleeve cabinet core axle hole (5-2-1) as rotary shaft by the angle of circumference of 180 degree
Turn symmetrical；Drawing pull bar seat axle sleeve cabinet core axle hole (5-2-1) is coaxial nested and is fixed on the outer diameter of core bucket (4)；
Cross force symmetrical slope surface load seat (6) is the axle sleeve cabinet that front and rear end is isosceles trapezoid, trapezoidal cabinet it is upper,
The center of lower end surface is equipped with slope surface load seat-box body core axle hole (6-2), left and right two stringcourse slope surfaces as trapezoidal stringcourse
Angle is 40 degree between (6-1)；Slope surface load seat-box body core axle hole (6-2) is coaxial nested and is fixed on the outer diameter of core bucket (4)；
Counter-force bar load hinged block (7), lateral backstop spherical bearing (8), dynamometry drawing pull bar seat (5) and cross force are symmetrical
Slope surface load seat (6) is sequentially coaxial nested according to sequence from top to bottom and is fixed on the outer diameter side wall of core bucket (4)；
Cross force load actuation mechanism (11) includes cross force load cylinder (11-1) and inclined-plane pedestal (11-2), inclined-plane pedestal
The lower end and ground of (11-2) are connected, and the inclined end face of inclined-plane pedestal (11-2) and ground are in 66 degree of angles；Each cross force load
The lower end cylinder hinged block of cylinder (11-1) is solid with the inclined end face on an one-to-one inclined-plane pedestal (11-2)
Even；The upper end cylinder hinged block of each cross force load cylinder (11-1) with an one-to-one stringcourse slope surface (6-
1) it is connected；
Cross force load actuation mechanism (11) is symmetrically arranged at the arranged on left and right sides of simulation centrepin loading mechanism；It is longitudinal
Counter-force bar (12) is arranged vertically within the front end of simulation centrepin loading mechanism in the horizontal direction.
2. as described in claim 1 based on the framed intensity experimental rig of centrepin loading mechanism, it is characterised in that: the cross
It is in 66 degree of angles with level ground when stationary to power load cylinder (11-1)；Two spherical pairs come directly towards (8-1) court respectively
Longitudinal counter-force bar is each perpendicular to the axis of the arranged on left and right sides of simulation centrepin loading mechanism, and spherical pair top (8-1)
(12)；The axis of two drawing pull bar attachment bases (5-1) is each parallel to longitudinal counter-force bar (12).
3. as described in claim 1 based on the framed intensity experimental rig of centrepin loading mechanism, it is characterised in that: the survey
Power type drawing pull bar (10) includes two drawing pull bar attachment bases (10-1), two drawing pull bar connecting shafts (10-2), pull sensing
Device (10-3), two long spiro nails (10-4) and two short screws (10-5), one end of drawing pull bar attachment base (10-1) is to have
The connecting rod (10-1-1) of internal screw thread, the other end are equipped with the drawing pull bar connecting shaft seat (10-1-2) perpendicular to connecting rod radial direction；Traction
The both ends of pull rod connecting shaft (10-2) are respectively equipped with screw hole, the middle section of drawing pull bar connecting shaft (10-2) and drawing pull bar connecting shaft seat (10-
1-2) axis connects；The screw rod at the both ends tension sensor (10-3) respectively on two drawing pull bar attachment bases (10-1) have internal screw thread
Connecting rod (10-1-1) be threadedly coupled；Described two long spiro nails (10-4) connect with a drawing pull bar respectively each along same direction
Screw hole on axis (10-2) is threadedly coupled, two short screws (10-5) along the identical direction with long spiro nail (10-4) respectively and separately
Screw hole on one drawing pull bar connecting shaft (10-2) is threadedly coupled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811172959.8A CN109387382A (en) | 2018-10-09 | 2018-10-09 | Framed intensity experimental rig based on centrepin loading mechanism |
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| CN201811172959.8A CN109387382A (en) | 2018-10-09 | 2018-10-09 | Framed intensity experimental rig based on centrepin loading mechanism |
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| CN109946102A (en) * | 2019-04-16 | 2019-06-28 | 北京华锴盛泽科技有限公司 | Push-pull effort testboard |
| CN112504705A (en) * | 2020-11-02 | 2021-03-16 | 中车唐山机车车辆有限公司 | Loading device and method for railway vehicle body and bogie connection consolidation strength test |
| CN113848109A (en) * | 2021-09-22 | 2021-12-28 | 中车唐山机车车辆有限公司 | Low-floor bogie frame strength testing device and system |
| CN113933078A (en) * | 2021-09-22 | 2022-01-14 | 中车唐山机车车辆有限公司 | Test system of suspension frame |
| CN113933077A (en) * | 2021-09-22 | 2022-01-14 | 中车唐山机车车辆有限公司 | Loading device for bogie frame test and bogie frame test system |
| CN114199155A (en) * | 2021-12-09 | 2022-03-18 | 湖北文理学院 | Locomotive frame pull rod seat deformation measurement platform and method based on machine vision |
| CN114704586A (en) * | 2022-03-18 | 2022-07-05 | 徐州徐工基础工程机械有限公司 | Universal coordinated mass damper |
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| CN109946102B (en) * | 2019-04-16 | 2024-06-04 | 北京芯金源测控技术有限公司 | Push-pull force test board |
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| CN113933078A (en) * | 2021-09-22 | 2022-01-14 | 中车唐山机车车辆有限公司 | Test system of suspension frame |
| CN113933077A (en) * | 2021-09-22 | 2022-01-14 | 中车唐山机车车辆有限公司 | Loading device for bogie frame test and bogie frame test system |
| CN113933077B (en) * | 2021-09-22 | 2024-01-23 | 中车唐山机车车辆有限公司 | Loading device for bogie frame test and bogie frame test system |
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| CN113848109A (en) * | 2021-09-22 | 2021-12-28 | 中车唐山机车车辆有限公司 | Low-floor bogie frame strength testing device and system |
| CN114199155A (en) * | 2021-12-09 | 2022-03-18 | 湖北文理学院 | Locomotive frame pull rod seat deformation measurement platform and method based on machine vision |
| CN114199155B (en) * | 2021-12-09 | 2023-11-14 | 湖北文理学院 | Locomotive framework pull rod seat deformation measurement platform and method based on machine vision |
| CN114704586A (en) * | 2022-03-18 | 2022-07-05 | 徐州徐工基础工程机械有限公司 | Universal coordinated mass damper |
| CN114704586B (en) * | 2022-03-18 | 2023-09-15 | 徐州徐工基础工程机械有限公司 | Universal coordination mass damper |
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Application publication date: 20190226 |