Background technology:
With the quickening of China's economic development and infrastructure construction speed, China's auto output from 2002 325.12 ten thousand,
Be promoted to 2011 1841.89 ten thousand, increase nearly 6 times.In the end of the year 2002, China's motor vehicles for civilian use recoverable amount has just broken through 20,000,000
?;At the end of 2011, motor vehicles for civilian use recoverable amount reaches 1.06 hundred million.The output of automobile and the increase of recoverable amount, lead to tail gas band
The pollution coming is increasingly severe.With the pay attention to day by day to energy-saving and emission-reduction for the country, realizing energy-conservation, low-carbon (LC), environmental protection has become China
The core objective of " 12 ", this shifts the emission problem of automobile industry on the teeth of the storm of energy-saving and emission-reduction onto.
National environmental protection mechanism requires increasingly stringent to motor vehicle emission at present, has implemented integrally state four Abgasgesetz.Catalysis
Silencer as important spare part in the after-treatment system of motor vehicle exhaust emission, therefore, it is necessary to structural to catalytic muffler
Can require and method of testing makes higher requirement.But, at present, thermal vibration or thermal cycle are being carried out to catalytic muffler
During test, the catalytic muffler of each specification needs corresponding specially special test fixture, and this results in frock kind
Class specification is various, and each frock is from being designed into trial-production, then is required for certain cycle to practical application, needs to put into certain
Human and material resources, financial resources, affect test progress, increase experimentation cost, testing efficiency is relatively low.And, prior art exists
When catalytic muffler is carried out with thermal vibration test, typically by direct for catalytic muffler right angle setting on a vibration table, in test
High temperature can affect the service life of shake table.
Content of the invention:
In sum, in order to overcome the shortcomings of prior art problem, the invention provides a kind of catalytic muffler experimental test is used
Frock, the catalytic muffler of compatible all regular sizes and its exemplar, can reach the purpose of one-object-many-purposes, thus reaching shortening
In the experimental test cycle, reduce quantity and the species of frock making, improve the testing efficiency of catalytic muffler, reduce and test low one-tenth
This.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of catalytic muffler experimental test frock, wherein:Including shake table, frock chassis, interior fixing lug boss and top board,
The top surface of described shake table is connected with frock chassis by connecting post, and the top surface on frock chassis is provided with interior fixing lug boss, treats
The catalytic muffler of test is arranged on the top surface on frock chassis, and interior fixing lug boss is inserted in catalytic muffler to be tested,
It is provided with open-work, the bottom on frock chassis is provided with air inlet pipe, air inlet pipe is treated by open-work connection in the middle part of described frock chassis
The catalytic muffler inner chamber of test, air inlet pipe connects air-heater, and the top of described catalytic muffler to be tested is provided with
Pressing plate, is connected by long bolt between top board and frock chassis, and the middle part of described top board is provided with venthole.
Technical scheme it may also is that realize:The top surface of described shake table is fixed with multiple nuts,
Multiple nuts be in different-diameter circular arrangement, frock chassis by being connected with the stay bolt that nut cooperates, outside stay bolt
It is set with hollow connecting post, connecting post lower end is contacted with vibration countertop, connecting post upper end supporting tool undersurface of bottom disc.
Technical scheme it may also is that realize:It is provided with multiple different-diameters on described frock chassis
Lower annular groove, a kind of catalytic muffler to be tested of the corresponding specification of each lower annular groove, catalysis to be tested is eliminated the noise
In the lower annular groove of lower end insertion of device.
Technical scheme it may also is that realize:It is provided with multiple connection screw threads on described frock chassis
Hole, multiple connection screw thread holes are in the circular arrangement of different-diameter, and interior fixing lug boss is bolted the company on frock chassis
Connect on screwed hole.
Technical scheme it may also is that realize:The bottom surface of described top board is provided with multiple different straight
The upper annular groove in footpath, the catalytic muffler to be tested of the corresponding a kind of specification of annular groove on each, catalysis to be tested disappears
In the upper annular groove of upper end insertion of sound device.
Technical scheme it may also is that realize:It is provided with adpting flange in described air inlet pipe.
Technical scheme it may also is that realize:Described interior fixing lug boss is to be bolted to frock bottom
Annular boss on disk, its external diameter is corresponding with the internal diameter of catalytic muffler to be tested.
Technical scheme it may also is that realize:It is provided with described frock chassis and press-fit screwed hole,
It is provided with described top board and press-fits open-work, what long bolt lower end was threaded in frock chassis press-fits on screwed hole, long spiral shell
Bar upper end passes through and press-fits open-work on top board, and is locked by locking nut and top board.
Beneficial effects of the present invention are:
1st, the present invention can carry out experimental test to the catalytic muffler commonly using multiple regular sizes, need not redesign frock,
The purpose of one-object-many-purposes can be reached, thus reaching the shortening experimental test cycle, reducing quantity and the species of frock making, improving
The testing efficiency of catalytic muffler, reduction test low cost.
2nd, the shake table of the present invention and catalytic muffler be not directly contacted with, arranges empty between shake table and catalytic muffler
Heart connecting post, thus avoid enter into the impact to shake table of the hot blast of catalytic muffler it is ensured that the service life of shake table.
3rd, the top surface on frock chassis of the present invention and the bottom surface of top board be respectively arranged with multiple different-diameters annular recessed
Groove, catalytic muffler lower end to be tested is inserted in the annular groove of top surface on frock chassis, on catalytic muffler to be tested
In the annular groove of end insertion top board bottom surface, play the effect of positioning catalytic muffler to be tested, in test process,
Catalytic muffler to be tested and frock chassis rigid contact is made in the presence of top board, the annular groove of multiple different-diameters,
Frock chassis is facilitated to be connected with the catalytic muffler of different size.
4th, the top surface of the shake table of the present invention is fixed with multiple nuts, and multiple nuts are in the circular arrangement of different-diameter, no
Same diameter circular array, facilitates shake table to be connected with the frock chassis of different size, and it is in not that frock chassis is provided with multiple companies
With the connection screw thread hole of the circular arrangement of diameter, thus facilitating frock chassis to connect the interior fixing lug boss of different size, different straight
The annular groove of the nut of footpath circular arrangement, the connection screw thread hole of different-diameter circular arrangement and different-diameter it is achieved that this
Bright a set of frock is suitable for the experimental test of the catalytic muffler of multiple different sizes.
5th, present configuration is simple, esy to use, safe and reliable, make simple, the requirement of suitable mass production, can
Effectively improve catalytic muffler production efficiency, the actually used offer reliable thermal vibration loop-around data for catalytic muffler props up
Hold.
Specific embodiment:
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of catalytic muffler experimental test frock, including shake table 1, frock chassis 2,
Interior fixing lug boss 3 and top board 4, the top surface of described shake table 1 is connected with frock chassis 2 by connecting post 5, shake table 1
Top surface is fixed with multiple nuts 11, and multiple nuts 11 are in the circular arrangement of different-diameter, and frock chassis 2 is by mutual with nut 11
The stay bolt 12 of cooperation connects, and is set with hollow connecting post 5, connecting post 5 lower end is connect with shake table 1 top surface outside stay bolt 12
Touch, connecting post 5 upper end supporting tool chassis 2 bottom surface.The top surface on frock chassis 2 is provided with interior fixing lug boss 3, on frock chassis 2
It is provided with multiple connection screw thread holes 14, multiple connection screw thread holes 14 are in the circular arrangement of different-diameter, interior fixing lug boss 3 passes through spiral shell
Tether in the connection screw thread hole 14 being connected on frock chassis 2.Interior fixing lug boss 3 is the annular being bolted on frock chassis 2
Boss, its external diameter is corresponding with the internal diameter of catalytic muffler 6 to be tested, and catalytic muffler 6 to be tested is arranged on frock bottom
The top surface of disk 2, and interior fixing lug boss 3 is inserted in catalytic muffler 6 to be tested, and frock chassis 2 is provided with multiple differences
The lower annular groove 13 of diameter, each lower annular groove 13 corresponds to a kind of catalytic muffler 6 to be tested of specification, to be tested
In the lower annular groove 13 of lower end insertion of catalytic muffler 6.
It is provided with open-work 7, the bottom on frock chassis 2 is provided with air inlet pipe 8, in air inlet pipe 8 in the middle part of described frock chassis 2
It is provided with adpting flange 16, air inlet pipe 8 connects catalytic muffler 6 inner chamber to be tested by open-work 7, air inlet pipe 8 connects hot blast
Machine, the top of described catalytic muffler 6 to be tested is provided with top board 4, passes through length between top board 4 and frock chassis 2
Screw rod 9 connects, and the middle part of described top board 4 is provided with venthole 10.The bottom surface of top board 4 is provided with multiple different-diameters
Upper annular groove 15, the catalytic muffler 6 to be tested of the corresponding a kind of specification of annular groove 15 on each, catalysis to be tested disappears
In the upper annular groove 15 of upper end insertion of sound device 6.It is provided with frock chassis 2 and press-fits screwed hole 17, described top board 4 sets
It is equipped with and press-fits open-work 19, what long bolt 9 lower end was threaded in frock chassis 2 press-fits on screwed hole 17, and long bolt 9 upper end passes through
Press-fit open-work 19 on top board 4, and locked with top board 4 by locking nut 18.
During use, connecting post 5 is passed through on frock chassis 2 and stay bolt 12 is connected on the nut 11 of shake table 1 top surface, will
Interior fixing lug boss 3 is connected with the connection screw thread hole 14 on frock chassis 2 by bolt, will be vertical for catalytic muffler 6 to be tested
Setting, catalytic muffler 6 lower end to be tested is inserted in the lower annular groove 13 on frock chassis 2, now interior fixation is convex
Platform 3 supports catalytic muffler 6 lower end inner wall to be tested, then top board 4 is fitted on catalytic muffler 6 to be tested
End, catalytic muffler 6 upper end to be tested is inserted in the upper annular groove 15 of top board 4 bottom surface, finally tightens locking nut 18,
Top board 4 and frock chassis 2 are locked by long bolt 9, reaches the purpose of clamping catalytic muffler 6 to be tested.
Then, the air inlet pipe 8 of frock chassis 2 lower end is connected air-heater, air-heater passes through air inlet pipe 8 and frock chassis 2
On open-work 7 be passed through hot-air into catalytic muffler 6 to be tested, Vibration on Start-up platform 1, to catalytic muffler 6 to be tested
Carry out thermal vibration and thermal cycle test.Enter the hot-air in catalytic muffler 6 to be tested finally to arrange from top board 4 middle part
Venthole 10 discharge.
It is noted that above-described embodiment is illustrative and not limiting to technical solution of the present invention, art is general
The equivalent of logical technical staff or the other modifications made according to prior art, as long as do not exceed technical solution of the present invention
Thinking and scope, should be included within interest field of the presently claimed invention.