A kind of automotive seat jolts wriggling durability-testing machines
The present invention relates to a kind of automotive seat testing machine, particularly a kind of automotive seat jolts wriggling durability-testing machines, and it belongs to a kind of testing equipment, the long duration test jolted for automotive seat and wriggle.
Automotive seat jolts and the standard of test of wriggling is: under the frequency of 100 times/min, carry out the vibration test of seat cushion 100000 times, and the sample after test should situation without exception occur, chair framework free from flaw, foam without deformation, fabric and liner without breakage.
Automotive seat jolts and the requirement of test of wriggling is: test specimen is fixed on testing machine platform, adjusts sample and makes the false buttocks of sample H dot center line and simulation align, adjusts the high and low position of simulation vacation buttocks. When seat load 68kg load, amplitude of jolting and peak to peak are 30mm, and wriggling angle is 21 ��.
In prior art, circular motion, when making, is converted to rectilinear motion with crank mechanism by testing equipment; Its cost of manufacture is high, and maintenance cost is also high; Meanwhile, the lubricating oil addition of existing testing equipment is all manually injected into, and the workload of operator is very big, and it cannot be guaranteed that the injection rate of lubricating oil, relatively costly.
Chinese Patent Application No. 2011146325x discloses a kind of name and is called the application for a patent for invention of " jolting peristaltic test machine for automotive seat ", but in actual use, it there is also following shortcoming:
1, it is that triple seat is tested at the trial simultaneously, or needs three individual seats to test simultaneously, or an individual seat and a twin bench-type seat are tested simultaneously. If only tested with seat such as a driver seat or assistant driver seat, other power source cannot be closed by process of the test, occurring as soon as test seat is one, and the three of testing machine positions are all starting, greatly waste the energy (because institute's gas-distributing motor power is very big), also increase the loss of machine.
2, jolt after motor output kinetic energy, be three seats because of what drive, so considering process of the test there will be the deficiency of kinetic energy when design, need to increase energy steady device, both having increased a flying wheel and carried out the stability of stationary vibration, structure is complicated, and cost is high.
3, because considering triple seat, the H point of three seats cannot align with the false buttocks center of gravity of testing equipment wriggling simultaneously, and the two groups of horizontal mobile mechanisms that can only increase X and Y-direction in a device ensure, structure is complicated, and cost is high.
4, in bump test, wriggling actuating unit is because being fixed on support, and for ensureing the steady of support, be just designed to jolt guide pillar sleeve, slide block, slide rail etc. meet up and down motion, in long-play process, easily cause this assembly plucking clamping stagnation.
5, wriggling test is that design of electrical motor becomes level, and a pair bevel gear of driven by motor will horizontally rotate and be converted into vertical rotary; Its shortcoming is: by the rotation of a pair bevel gear, cost of manufacture is high, and easy to wear, and noise is also bigger.
6, each motive position all needs manually to add lubricating oil and is lubricated, and adds the workload of laboratory technician and it cannot be guaranteed that the accuracy of lubricating oil injection rate.
7, it is not provided with the platen that jolts, fixing for seat plate is directly used as the platen that jolts, inconvenience is installed during use.
Summary of the invention
The technical problem to be solved is to overcome in prior art existing above-mentioned deficiency, and provides a kind of structural design advantages of simple, tests automotive seat accurately and reliably and jolt wriggling durability-testing machines.
This invention address that above-mentioned technical problem be the technical scheme is that, this automotive seat wriggling durability-testing machines that jolts includes frame, bump device and creeping device, bump device includes buncher, reduction box, eccentric, connecting rod of jolting and the connection pole socket that jolts, creeping device includes false buttocks and servomotor, bump device is positioned at the middle and lower part of testing machine, creeping device is positioned at the topmost of testing machine, and its architectural feature is:
Described bump device also include jolting guide pillar, sliding bearing, jolt platen and panel, sliding bearing is arranged on panel, jolt guide pillar and be connected with the platen that jolts and coordinate with sliding bearing, described connecting rod of jolting is connected to the bottom surface of the platen that jolts by connecting pin and the connection pole socket that jolts, the lower end of the described guide pillar that jolts is unsettled, connecting rod of jolting is a continuous straight-bar, and panel is positioned at the middle part of the guide pillar length direction that jolts; The bump device making the present invention can be tested by a seat, and it is simple and reasonable, and the process of the test energy is low, and kinetic energy foot, motor operates steadily, and cost is low.
Described creeping device also includes wriggling connecting rod, cantilever, support bar, the fixing seat of cantilever and cantilever platen, wriggling connecting rod is connected with servomotor, cantilever is connected with the fixing seat of cantilever and servomotor respectively by connecting pin, support bar and the fixing seat of cantilever are each attached on cantilever platen, and support bar is between the lower section of cantilever and wriggling connecting rod and the fixing seat of cantilever; The bump device and the creeping device that make the present invention can operate steadily for a long time, and assembly is hardly damaged; And support bar is not when working, can play and cantilever is withstood, it is to avoid false buttocks weight pressure, on the seat thus being relayed to and jolting on platform, increases the effect in service life.
Described buncher, reduction box, eccentric, connecting rod of jolting are joined directly together successively; Make the structural design more advantages of simple of bump device, it is not necessary to increase other parts, just can by the carrying out of the conveying and bump test that have specified power, lower in cost.
Described servomotor is positioned at the vertical direction of false buttocks and along Y-axis right angle setting, and this servomotor is directly connected with one end of wriggling connecting rod and cantilever, and wriggling connecting rod and cantilever are continuous straight-bar; Make the structural design more advantages of simple of creeping device, the up and down motion of vibration can be converted into the low-angle circular motion of cantilever easily, it is not necessary to considering that the mechanism that the mechanism such as sleeve, slide rail can produce is complicated, cost is high, the defect that noise is big, and motor can be directly realized by the purpose of vertical rotary.
Described panel, jolt platen and cantilever platen upwards arranges successively, and they are parallel to each other;The overall operation making bump device and creeping device is more reliable, installs more convenient.
The present invention is additionally provided with lubricating oil and is automatically injected machine, and it is fixed in described frame, can automatically motive position each in equipment be timed, quantitative oil filling, and alleviates workload.
Connecting rod of jolting of the present invention is connected with eccentric by connecting pin, and servomotor is connected with cantilever by connecting pin, in order to completes the connection of related components by structure the simplest, reliable, and completes test of jolting and wriggle.
Support bar of the present invention includes supporting rod seat, and support bar is flexibly connected with supporting rod seat, and supporting rod seat is fixed on cantilever platen, in order to when test does not carry out, with support bar by cantilever jack-up, makes false buttocks to fall.
Wriggling connecting rod of the present invention and cantilever are continuous straight-bar, and the angle between them is 70 ��-90 ��, in order to when test does not carry out, support bar by cantilever jack-up, and can support the weight of creeping device.
Of the present invention jolt guide pillar and sliding bearing has four groups, in order to make the operation of bump test more steadily, reliable, accurately.
The present invention compared with prior art, has the following advantages and effect: structural design is simple, reasonable, compact, and test is convenient, accurate, reliable, long service life; The present invention directly installs an eccentric on reduction box, lower in cost.
Compared with Chinese Patent Application No. 2011146325x, it also have the advantage that 1, testing equipment be designed as run a seat test, reduce the cost of manufacture of equipment, in process of the test, also saved the energy; And this test is all by single seat test in most cases; 2, because being run a seat, motor is entirely capable of the steady of guarantee test, avoids the need for increasing a flying wheel, reduces cost of manufacture; 3, only one of which seat is tested, and the adjustment for H point only needs moved seat just can reach requirement; 4, inchworm motor is arranged on cantilever, the up and down motion of vibration is converted into the low-angle circular motion of cantilever, it is not necessary to consider the defect that the mechanism such as sleeve, slide rail can produce; 5, wriggling experiment electric motor being designed directly to plumbness, motor without just directly reaching the purpose of vertical rotary by the conversion of bevel gear; 6, add a lubricating oil and be automatically injected machine, can automatically motive position each in equipment be timed, quantitative oil filling.
Accompanying drawing explanation
Fig. 1 is the structural representation front view that the present invention tests device.
Fig. 2 is the structural representation top view that the present invention tests device.
Fig. 3 is the structural representation left view that the present invention tests device.
Fig. 4 is the structural representation front view after the present invention installs seat assembly.
Fig. 5 is the structural representation top view after the present invention installs seat assembly.
Fig. 6 is the structural representation left view after the present invention installs seat assembly.
In figure: 1 buncher, 2 reduction boxes, 3 eccentrics, 4 jolt connecting rod, and 6 lubricating oil are automatically injected machine, 7 frames, 8 jolt guide pillar, 9 sliding bearings, and 10 jolt platen, 11 seat installing plates, 12 seat mounting seats, 13 seat slides, 14 seat assemblies, 15 false buttockss, 16 wriggling connecting rods, 17 servomotors, 19 cantilevers, 20 support bars, 22 cantilevers fix seat, 23 cantilever platens, and 25 jolt connection pole socket, 26 panels, 27 slide rail installing holes, I bump device, II creeping device.
Detailed description of the invention
Referring to Fig. 1 Fig. 6, embodiments of the invention are mainly automatically injected machine 6, bump device I and creeping device II by frame 7, lubricating oil and form;Wherein: bump device I includes buncher 1, reduction box 2, eccentric 3, connecting rod of jolting 4, jolt connection pole socket 25, the guide pillar 8 that jolts, sliding bearing 9, jolt platen 10 and panel 26; Creeping device II includes false buttocks 15, servomotor 17, wriggling connecting rod 16, cantilever 19, support bar 20, the fixing seat 22 of cantilever and cantilever platen 23; Lubricating oil is automatically injected machine 6 and is fixed in frame 7, and bump device I is connected with panel, and creeping device II is connected with cantilever platen 23, and panel 26 and cantilever platen 23 are then fixed in frame 7.
Buncher 1 in bump device I of the present invention is connected with reduction box 2, and eccentric 3 is contained on reduction box 2, and connecting rod of jolting 4 is connected with eccentric 3 by connecting pin 5; Sliding bearing 9 is arranged on panel 26, jolts guide pillar 8 and is connected with the platen 10 that jolts, and coordinates with sliding bearing 9. Connecting rod of jolting 4 is connected to is jolted on platen 10 by connecting pin and the connection pole socket 25 that jolts.
The buncher 1 of the present invention, reduction box 2, eccentric 3, connecting rod of jolting 4 are joined directly together successively, and connecting rod of jolting 4 is connected with eccentric 3 by connecting pin; In the present embodiment, jolt guide pillar 8 and sliding bearing 9 have four groups, the upper end of four guide pillars 8 that jolt all with the platen 10 that jolts, and coordinate with four sliding bearings 9.
The fixing seat 22 of cantilever in creeping device II of the present invention is fixed on above cantilever platen 23, and cantilever 19 is connected by the fixing seat 22 of connecting pin and cantilever, and servomotor 17 is connected with cantilever 19 by connecting pin; Wriggling connecting rod 16 rotates with servomotor 17, and false buttocks 15 also rotates together with wriggling connecting rod 16. When test does not carry out, with support bar 20 by cantilever 19 jack-up, false buttocks 15 will not fall.
The servomotor 17 of the present invention is positioned at the vertical direction of false buttocks 15 and along Y-axis right angle setting, and this servomotor 17 is directly connected with one end of wriggling connecting rod 16 and cantilever 19, and wriggling connecting rod 16 and cantilever 19 are continuous straight-bar; Servomotor 17 is connected with cantilever 19 by connecting pin; In the present embodiment, support bar 20 includes supporting rod seat 201, support bar 20 is flexibly connected with supporting rod seat 201, supporting rod seat 201 is fixed on cantilever platen 23, angle between wriggling connecting rod 16 and cantilever 19 is 70 ��-90 ��, in the present embodiment, the angle �� between wriggling connecting rod 16 and cantilever 19 is 80 ��.
In the present embodiment, jolt guide pillar 8 and sliding bearing 9 cooperation place, eccentric 3, connecting rod of jolting 4 and associated pin cooperation place, jolting is connected pole socket 25 and coordinates with associated pin the motion junction lubricating oil such as place to be automatically injected machine 6 to be automatically timed quantitative oiling, this lubricating oil is automatically injected machine 6 and is fixed in frame 7, and namely pouring orifice is a port on automatic oiling machine 6.
During test, seat installing plate 11 is contained in and jolts on platen 10, seat assembly 14 utilizes slide rail installing hole 27 to be connected with seat mounting seat 12 by the leg of seat slide 13, and seat mounting seat 12 is directly installed on seat installing plate 11, then is fixed to and jolts on platen 10.
In the present embodiment, seat assembly 14 is containing slide rail assembly, and the weight of false buttocks 15 makes on request.
Bump test is as follows:
Buncher 1 energising rotates, and slows down with reduction box 2, is delivered to eccentric 3, then drives connecting rod 4 of jolting to move, and connecting rod of jolting 4 utilizes the eccentric distance e of eccentric 3 to make circular motion be converted to rectilinear motion; Jolt platen 10 from four jolt guide pillar 8 together with four sliding bearings 9 with and move, the amplitude jolted adjusts also by offset.At this, as long as adjusting eccentric distance e, just changing the amplitude of rectilinear motion, thereby through jolting, connection pole socket 25 drives the platen 10 that jolts to make seat assembly 14 carry out bump test.
Test of wriggling is as follows:
Servomotor 17 is arranged on cantilever platen 23 by the fixing seat 22 of cantilever 19 and cantilever, the rotational angle that servomotor 17 sets by PLC program rotates clockwise and anticlockwise, drive wriggling connecting rod 16 and false buttocks 15 to rotate, just can carry out test of wriggling. Seat assembly 14 is in the process of jolting, and wriggling connecting rod 16 is moved up and down on the basis being flexibly connected with the fixing seat 22 of cantilever again by cantilever 19, and effect is on seat assembly 14 all the time.
Buncher 1 and servomotor 17 are automatically controlled by control system, work simultaneously, and test; It is automatically stopped when test is to the number of times specified.
By foregoing description, those skilled in the art can implement.
Although the present invention is with embodiment openly as above, but it is not limited to protection scope of the present invention, all equivalences done according to the structure described in present inventive concept, feature and principle or simple change, is all included in the protection domain of patent of the present invention.