CN105004538B - A kind of impactor for foam shock experiment - Google Patents
A kind of impactor for foam shock experiment Download PDFInfo
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- CN105004538B CN105004538B CN201510544933.1A CN201510544933A CN105004538B CN 105004538 B CN105004538 B CN 105004538B CN 201510544933 A CN201510544933 A CN 201510544933A CN 105004538 B CN105004538 B CN 105004538B
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- coaster
- guide rails
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- impactor
- front plate
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Abstract
The present invention relates to a kind of impactor for foam shock experiment, including：Rail assembly, rail assembly includes fixed frame and two pieces of base plates, and two pieces of base plates are parallel and are oppositely arranged on the left side of fixed frame, and two pieces of base plates are respectively provided with a guide rail for extending in left-right direction on relative face；Coaster, coaster is located between two guide rails, and coaster is made up of one piece of front plate and two blocks of side plates being perpendicularly fixed in front plate, and assembly pulley is equipped with two blocks of side plates, and two assembly pulleys are clamped on two guide rails respectively, and coaster can move along a straight line along two guide rails；Pedestal, the two ends of pedestal are separately fixed at two pieces of left parts of base plate, and pedestal is provided with the mounting hole of left and right insertion；Impact head, to clash into flat board, its left end is fixedly connected in front plate the right-hand member of impact head.The present invention can carry out dynamic impact test to various foamed materials, can accurately measure the rigidity of foamed material, so that for automotive crash safety R ＆ D design provides support.
Description
Technical field
The present invention relates to automobile test device, and in particular to a kind of impactor for foam shock experiment.
Background technology
In today that automotive safety is increasingly taken seriously, how automobile is quickly improved using advanced research and development means
Collision safety seems particularly critical.Many parts all contain foaming composition on automobile, such as：Seat, steering wheel, instrument board, insurance
There is the foamed material for protecting driver and crew and pedestrains safety the positions such as thick stick.In collision scenario, foam on automobile
The quality of material energy absorption performance affects the weight of injury to personnel degree.Stiffness parameters just show really to obtain foamed material on automobile
Obtain increasingly important.There is a problem of now with the stiffness parameters of foamed material in CAE analysis car crass it is inaccurate, therefore,
It is necessary a kind of impactor dedicated for impacting foam of exploitation.
The content of the invention
The purpose of the present invention is to propose to a kind of impactor for foam shock experiment, action can be entered to various foamed materials
State impact test, to obtain the accurate stiffness parameters of foamed material.
A kind of impactor for foam shock experiment of the present invention, including：Rail assembly, the rail assembly bag
Fixed frame and two pieces of base plates being perpendicularly fixed on the fixed frame are included, two pieces of base plates are parallel and are oppositely arranged on the fixed frame
Left side, two pieces of base plates are respectively provided with a guide rail for extending in left-right direction on relative face, and two guide rails are parallel to each other, two
Sliding way and glide path directed downwardly upward is respectively provided with guide rail；Coaster, the coaster is located between two guide rails, described
Coaster is made up of one piece of front plate and two blocks of side plates being perpendicularly fixed in front plate, and two blocks of side plates are oppositely arranged and positioned at described
The left side of front plate, is equipped with assembly pulley on two blocks of side plates, two assembly pulleys are clamped on two guide rails respectively, each cunning
Wheel group include at least two with the sliding way coordinate and spaced pulley, at least two and the glide path coordinate and
Every the pulley for setting, the coaster can move along a straight line along two guide rails；Pedestal, the two ends of the pedestal are fixed respectively
In the left part of two pieces of base plates, the pedestal is provided with the mounting hole of left and right insertion, and the mounting hole is described for being fixed as
Coaster provides the power-equipment of power；Impact head, to clash into flat board, its left end is fixedly connected on described the right-hand member of the impact head
In front plate, perpendicular to two guide rails, the impact head and the coaster can pass through described solid the shock flat board
Determine frame.
Using above-mentioned technical proposal, coordinated using coaster and guide rail, and supratrochlear assembly pulley is clamped on guide rail, it is sliding
The operation that car can be stablized, it is ensured that be obtained in that accurate test data；Due to using tabular and hitting perpendicular to two guide rails
Flat board is hit as impact member, flat board is clashed into during experiment and is just clashed into foamed material to foamed material and under the drive of coaster, this
Foamed material uniform force during individual, the sinking degree of foamed material can really reflect the rigidity of foamed material, to obtain
Obtain the accurate stiffness parameters of foamed material.
Further, two guide rails are rectangular slab, and the upper edge of two guide rails is and raises up and section is in V
The sliding way of shape, the lower edge of two guide rails is the V-shaped glide path of downwardly convex and section, and the pulley is V-type pulley.Adopt
With said structure, the cooperation of pulley and guide rail is more stable, further ensures that the operation that coaster can be stablized.
Further, acceleration transducer is installed on the coaster or the impact head, is rushed for recording in impact process
Tap the head the acceleration signal for changing over time.
Further, the pedestal includes the base body and top cover that are removably joined together, the base body
Two ends are separately fixed at the left part of two pieces of base plates, and the top surface of the base body offers the first arc of left and right insertion
Groove, the bottom surface of the top cover offers the second deep-slotted chip breaker of left and right insertion at the position corresponding with the first deep-slotted chip breaker, described
First deep-slotted chip breaker and second deep-slotted chip breaker constitute the mounting hole.Using said structure, can very easily dismount power and set
It is standby.
Further, there is the space of installing two guide rails between the base body and two pieces of base plates and institute is allowed
State the space that two blocks of side plates pass through.Using said structure, base body will not interfere with coaster, coaster is had larger motion model
Enclose.
Further, the right flank of the front plate is provided with mounting seat, and the impact head includes the shock flat board and leads to
The installing plate that bolt is fixedly connected with the mounting seat is crossed, is fixed by reinforcement between the installing plate and the shock flat board
Connection.Using said structure, impact head installs firm, and can very easily change impact head.
Crash panel when in use, is directed at foamed material by above-mentioned impactor, and impactor is pacified by guide rail base with cover plate
The cylindrical hole for being formed is filled to be fixedly connected with power-equipment.Start power-equipment, the power transmitting bar of power-equipment stretches out and promotes
Impact head, coaster are moved forward along guide rail, and by impaction plates foamed material, acceleration transducer is obtained during this
The acceleration signal that impact head is changed over time, the sinking degree according to acceleration signal and foam exemplar is analyzed, to obtain
Obtain the stiffness parameters of foam exemplar.
The present invention can carry out dynamic impact test to various foamed materials, can accurately obtain the rigidity ginseng of foamed material
Number, solves the problems, such as that the stiffness parameters of foamed material in CAE analysis car crass are inaccurate, so that for automotive crash safety grinds
Hair design provides support.
Brief description of the drawings
Fig. 1 is axonometric drawing of the invention；
Fig. 2 is structural representation of the invention；
Fig. 3 is the right view of Fig. 2；
Fig. 4 is the structural representation of impact head；
Fig. 5 is the structural representation of coaster；
Fig. 6 is the connection diagram of the present invention and power-equipment.
In figure：1-impact head；2-coaster；3-fixed frame；4-clash into flat board；5-reinforcement；6-installing plate；7—
Mounting seat；8-front plate；9-side plate；10-base plate；11-pulley；12-base body；13-top cover；14-guide rail；
15-transmission cylinder；16-transmitting bar.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of impactor for foam shock experiment as shown in Figure 1, including rail assembly, coaster 2, pedestal and impact
First 1.
As depicted in figs. 1 and 2, rail assembly includes fixed frame 3 and two pieces of base plates 10 being perpendicularly fixed on fixed frame 3,
Two pieces of base plates 10 are parallel and are oppositely arranged on the left side of fixed frame 3, and fixed frame 3 is rectangular frame structure, and two pieces of base plates 10 pass through
Bolt is separately fixed on fixed frame 3 one group of relative frame along upper, and two pieces of base plates 10 are respectively provided with one along left and right on relative face
The guide rail 14 that direction extends, two guide rails 14 are parallel to each other, be respectively provided with two guide rails 14 sliding way upward and it is directed downwardly under
Slideway；Specifically, two guide rails 14 are the rectangular slab being bolted on base plate 10, as shown in figure 3, two guide rails
14 upper edge be raise up and section in inverted V-shaped sliding way, the lower edge of two guide rails 14 is downwardly convex and section
V-shaped glide path.
As shown in Figure 1 and Figure 5, coaster 2 is located between two guide rails 14, coaster 2 by one piece of front plate 8 and vertical welding in
Two blocks of side plates 9 in front plate 8 are constituted, and two blocks of side plates 9 are oppositely arranged and are all provided with the left side of front plate 8, two blocks of side plates 9
Have assembly pulley, two assembly pulleys are clamped on two guide rails 14 respectively, each assembly pulley include two with sliding way cooperation and
Every the pulley for setting, 11, two coordinate and spaced pulley 11 with glide path, and four pulleys 11 in each assembly pulley are equal
The mode being bolted is arranged on the corner of corresponding side plate 9, and pulley 11 is V-type pulley, and coaster 2 can be along two guide rails
14 move along a straight line.
As shown in figures 1 to 6, the two ends of pedestal are separately fixed at two pieces of left parts of base plate 10, and pedestal is provided with left and right and passes through
Logical mounting hole, mounting hole be used for be fixed as coaster 2 provide power power-equipment, specifically, pedestal include can by bolt
The base body 12 and top cover 13 for releasably linking together, the two ends of base body 12 are separately fixed at two pieces of left sides of base plate 10
Portion, the top surface of base body 12 offers the first deep-slotted chip breaker of left and right insertion, and the bottom surface of top cover 13 is relative with the first deep-slotted chip breaker
The second deep-slotted chip breaker of left and right insertion is offered at the position answered, the first deep-slotted chip breaker and the second deep-slotted chip breaker constitute above-mentioned mounting hole,
Power-equipment can be fixed in mounting hole, so as to realize being stably connected with for rail assembly and power-equipment.The He of base body 12
The space that there is the space of two guide rails 14 of installation between two pieces of base plates 10 and allow two blocks of side plates 9 to pass through.
As shown in Figure 1 and Figure 4, to clash into flat board 4, its left end is fixedly connected in front plate 8, hits the right-hand member of impact head 1
Hitting flat board 4 can pass through fixed frame 3 perpendicular to two guide rails 14, impact head 1 and coaster 2, specifically, the right side of front plate 8
Face is provided with mounting seat 7, and mounting seat 7 includes the cylinder being welded in front plate 8 and the fixed plate for being welded on cylinder right-hand member, fixed
Plate is provided with bolt hole.Impact head 1 includes the installing plate 6 for clashing into flat board 4 and being fixedly connected with fixed plate by bolt, installing plate
It is fixedly connected in criss-cross reinforcement 5 by section between 6 and shock flat board 4, the mode that is fixedly connected is welding.
Acceleration transducer is installed on coaster 2 or impact head 1, for recording in impact process the anaplasia at any time of impact head 1
The acceleration signal of change.
As shown in fig. 6, power-equipment include transmission cylinder 15 and transmitting bar 16, during experiment, transmission cylinder 15 by mounting hole with
Rail assembly is fixedly connected, the position of adjustment impactor or foamed material so that clash into flat board 4 just to foamed material.Power
Before equipment starts, coaster 2 is slided to the left, make front plate 8 with the transmitting intimate contact of bar 16.Then start power-equipment, launch
The moment of cylinder 15 stretches out transmitting bar 16, and transmitting bar 16 promotes front plate 8 to move right, i.e., impact head 1, coaster 2 are led along two together
Rail 14 is moved right, and directly impact test is carried out to foamed material by shock flat board 4, and impact head is obtained by acceleration transducer
1 acceleration signal for changing over time.By adjusting power-equipment, coaster 2 can be made to obtain different initial velocities, to obtain
Sinking degree and acceleration signal of the foamed material under different impacts, can accurately analyze according to the test data for obtaining
The stiffness parameters of the foamed material.
Claims (6)
1. it is a kind of for foam shock experiment impactor, it is characterised in that including：
Rail assembly, the rail assembly includes fixed frame（3）Be perpendicularly fixed at the fixed frame（3）On two pieces of base plates
（10）, two pieces of base plates（10）It is parallel and be oppositely arranged on the fixed frame（3）Left side, two pieces of base plates（10）It is each on relative face
It is provided with a guide rail for extending in left-right direction（14）, two guide rails（14）It is parallel to each other, two guide rails（14）On be respectively provided with court
On sliding way and glide path directed downwardly；
Coaster（2）, the coaster（2）Positioned at two guide rails（14）Between, the coaster（2）By one piece of front plate（8）With
It is perpendicularly fixed at front plate（8）On two blocks of side plates（9）Composition, two blocks of side plates（9）It is oppositely arranged and positioned at the front plate（8）
Left side, two blocks of side plates（9）On be equipped with assembly pulley, two assembly pulleys are clamped in two guide rails respectively（14）On, each
Assembly pulley includes that at least two coordinate and spaced pulley with the sliding way（11）, at least two match somebody with somebody with the glide path
Close and spaced pulley（11）, the coaster（2）Can be along two guide rails（14）Move along a straight line；
Pedestal, the two ends of the pedestal are separately fixed at two pieces of base plates（10）Left part, the pedestal be provided with left and right pass through
Logical mounting hole, the mounting hole is used to be fixed as the coaster（2）The power-equipment of power is provided；
Impact head（1）, the impact head（1）Right-hand member for clash into flat board（4）, its left end is fixedly connected on the front plate（8）
On, the shock flat board（4）Perpendicular to two guide rails（14）, the impact head（1）With the coaster（2）Can pass through
The fixed frame（3）.
2. it is according to claim 1 for foam shock experiment impactor, it is characterised in that：Two guide rails（14）
It is rectangular slab, two guide rails（14）Upper edge be raise up and section in inverted V-shaped sliding way, two guide rails（14）
Lower edge be the V-shaped glide path of downwardly convex and section, the pulley（11）It is V-type pulley.
3. it is according to claim 1 for foam shock experiment impactor, it is characterised in that：The coaster（2）Or institute
State impact head（1）On acceleration transducer is installed, for recording impact head in impact process（1）The acceleration for changing over time
Signal.
4. according to claim any one of 1-3 for foam shock experiment impactor, it is characterised in that：The pedestal
Including the base body being removably joined together（12）And top cover（13）, the base body（12）Two ends fix respectively
In two pieces of base plates（10）Left part, the base body（12）Top surface offer the first deep-slotted chip breaker of left and right insertion, institute
State top cover（13）Bottom surface the second deep-slotted chip breaker of left and right insertion, described are offered at the position corresponding with the first deep-slotted chip breaker
One deep-slotted chip breaker and second deep-slotted chip breaker constitute the mounting hole.
5. it is according to claim 4 for foam shock experiment impactor, it is characterised in that：The base body（12）
With two pieces of base plates（10）Between have two guide rails be installed（14）Space and allow two blocks of side plates（9）Pass through
Space.
6. according to claim any one of 1-3 for foam shock experiment impactor, it is characterised in that：The front
Plate（8）Right flank be provided with mounting seat（7）, the impact head（1）Including the shock flat board（4）With by bolt with it is described
Mounting seat（7）The installing plate being fixedly connected（6）, the installing plate（6）With the shock flat board（4）Between pass through reinforcement（5）
It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544933.1A CN105004538B (en) | 2015-08-31 | 2015-08-31 | A kind of impactor for foam shock experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544933.1A CN105004538B (en) | 2015-08-31 | 2015-08-31 | A kind of impactor for foam shock experiment |
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| Publication Number | Publication Date |
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| CN105004538A CN105004538A (en) | 2015-10-28 |
| CN105004538B true CN105004538B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510544933.1A Active CN105004538B (en) | 2015-08-31 | 2015-08-31 | A kind of impactor for foam shock experiment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014580B (en) * | 2017-05-05 | 2022-05-03 | 武汉理工大学 | Horizontal impact trolley |
| CN111157212B (en) * | 2020-01-06 | 2021-03-02 | 重庆长安汽车股份有限公司 | Thigh bone angle adjusting device and method of pedestrian protection thigh impactor |
| CN114061975A (en) * | 2021-11-12 | 2022-02-18 | 浙江夕尔科技有限公司 | Device and method for testing safety of baby carrier |
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| CN105004538A (en) | 2015-10-28 |
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