CN104422586A - Opening-closing member rigidity test loading device - Google Patents
Opening-closing member rigidity test loading device Download PDFInfo
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- CN104422586A CN104422586A CN201310380392.4A CN201310380392A CN104422586A CN 104422586 A CN104422586 A CN 104422586A CN 201310380392 A CN201310380392 A CN 201310380392A CN 104422586 A CN104422586 A CN 104422586A
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Abstract
The invention discloses an opening-closing member rigidity test loading device comprising a base (1), a sliding seat (2) slidably arranged on the base (1), a sliding block (3) slidably arranged on the sliding seat (2), a first worm and gear set (4) fixedly connected to the sliding block (3), a fixing support (5) fixedly connected to the first worm and gear set (4), a second worm and gear set (6) fixedly connected to the fixing support (5), a scissor-like jack (7) fixedly connected with the second worm and gear set (6), and a force sensor (8) and a loading head (9) which are arranged on the scissor-like jack (7). By employing the two worm and gear sets in the invention, the loading direction can be adjusted in multiple degrees of freedom, the loading position can be adjusted via the screw transmission of adjusting screw rods, and both the two transmission mechanisms can be self-locked. The loading device has a compact structure, is convenient to adjust and install, and occupies a small space.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to a kind of shutter member stiffness test charger.
Background technology
Shutter member is the key components and parts of vehicle body, and its dirigibility, soundness, sealing etc. have a significant impact the use of automobile product, and these performances are all relevant with its rigidity.Each stage shutter member rigidity data in accurate test vehicle body performance history, to guidance, checking design and manufacture process important in inhibiting.Shutter member shape is quite complicated, and more difficult adjustment charger loads at assigned direction and position; In addition, the point that need measure is many, and workload is large.
What current application was more has the loading equipemtns such as hydraulic cylinder, cylinder, lifting jack, all not easily installs and is difficult to regulate loading position and angle.Such as, existingly to carry out in the charger that passenger car shutter member stiffness test adopts, loading head carries out load operation by scissor-like jack, but can only rotate in wraparound rotating shaft direction, and can not self-locking after adjustment, also need to tighten clamping screw, thus install regulate also inconvenient.
Summary of the invention
Technical matters to be solved by this invention is, providing a kind of can regulate loading direction, installs the easy shutter member stiffness test charger of adjustment by multiple degrees of freedom.
In order to solve the problems of the technologies described above, the invention provides a kind of shutter member stiffness test charger, comprising: base; Be slidably mounted in the slide on described base; Be slidably mounted in the slide block on described slide; Be fixedly connected on the first worm and gear group on described slide block, described first worm and gear group comprises the first worm gear, first worm screw that can be meshed with described first worm gear and is arranged on described first worm gear central authorities and the first vertical with it worm-wheel shaft; Be fixedly connected on the fixed support in described first worm and gear group; Be fixedly connected on the second worm and gear group on described fixed support, described second worm and gear group comprises the second worm gear, second worm screw that can be meshed with described second worm gear and is arranged on described second worm gear central authorities and the second vertical with it worm-wheel shaft; The scissor-like jack be fixedly connected with described second worm and gear group; Be arranged on the force snesor on described scissor-like jack and loading head; Described first worm and gear group drives described loading head to rotate around described first worm-wheel shaft, and described second worm and gear group drives described loading head to rotate around described second worm-wheel shaft.
Wherein, described first worm screw and described first worm-wheel shaft perpendicular, described second worm screw and described second worm-wheel shaft perpendicular, described first worm screw and described second worm screw perpendicular.
Wherein, described base is rectangular, respectively be provided with the first boss for assembling with described slide up and down, described slide is respectively provided with the first dovetail groove that a shape and described first boss match at two ends along its length, between described first dovetail groove, being provided with the first threaded hole, being provided with a pair that extend along described slide length direction, for assembling with described slide block the second boss at the back side of described first dovetail groove and the first threaded hole.
Wherein, first adjusting screw(rod) one end is arranged on described base, and through described first threaded hole, formed with it and be threaded, described first adjusting screw(rod) is parallel with described first boss.
Wherein, described slide block comprises riser and the top board extended to homonymy from the upper and lower two ends of described riser respectively and base plate, and described top board and base plate are parallel to each other, and all vertical with described riser; Described top board and base plate near described riser place, form the second dovetail groove for assembling with the second boss on described slide respectively.
Wherein, described top board and base plate are respectively provided with one for fixedly mounting the mounting hole of described first worm-wheel shaft; The second threaded hole is provided with between two the second dovetail grooves of described top board, through hole is provided with between two the second dovetail grooves of described base plate, described second threaded hole and described through hole coaxial, for installing the second adjusting screw(rod), described second adjusting screw(rod) is formed with described second threaded hole and is threaded.
Wherein, described second adjusting screw(rod) is positioned at outside described second boss, and is parallel to described second boss.
Wherein, described top board surface is also provided with a pair for installing the lug of described first worm screw.
Wherein, between the top board that described fixed support is arranged on described slide block and base plate, the sleeve of axis hole and the upper flange extended to homonymy from described sleeve end face and bottom surface respectively and lower flange is established in comprising, described upper flange and lower flange are parallel to each other, and establish the projection of side mounting hole in described cartridges sides is convexly equipped with.
Wherein, described mounting hole and axis hole coaxial, described first worm-wheel shaft to be inserted in described mounting hole and axis hole and is fixed by lock-screw.
Wherein, described second worm screw is arranged on described upper flange and the lower flange other end away from described sleeve, and described second worm-wheel shaft is through described side mounting hole.
Wherein, the loading acme thread bar that described scissor-like jack comprises framework and installs on said frame, described framework is welded and fixed by mounting bracket and described second worm gear.
Wherein, described mounting bracket comprises and is provided with pin-and-hole a pair and the lug be parallel to each other, and described projection is between described two lugs, and described second worm-wheel shaft is through the pin-and-hole of described side mounting hole and described two lugs.
Wherein, described loading acme thread bar is assembled by pin and described framework, described loading acme thread bar also comprises two thrust bearings, and described thrust bearing is fixed on described pin both sides by the shaft shoulder on described loading acme thread bar and with the set nut that described loading acme thread bar welds together.
Shutter member stiffness test charger provided by the present invention, uses two groups of worm and gear multiple degrees of freedoms to regulate loading direction, all can realize self-locking, and compact conformation, make adjustment easy for installation, take up room little.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the perspective view of embodiment of the present invention shutter member stiffness test charger.
Fig. 2 is the perspective exploded view of embodiment of the present invention shutter member stiffness test charger.
Fig. 3 is the perspective view of slide in embodiment of the present invention shutter member stiffness test charger.
Fig. 4 is the perspective view of slide block in embodiment of the present invention shutter member stiffness test charger.
Fig. 5 is the assembling schematic diagram of base, slide, slide block and first, second adjusting screw(rod) in embodiment of the present invention shutter member stiffness test charger.
Fig. 6 is the partial schematic sectional view loading acme thread bar in embodiment of the present invention shutter member stiffness test charger.
Embodiment
Below with reference to the accompanying drawings the preferred embodiments of the present invention are described.
Shown in Fig. 1-2, the embodiment of the present invention provides a kind of shutter member stiffness test charger, comprise: base 1, be slidably mounted in the slide 2 on base 1, be slidably mounted in the slide block 3 on slide 2, be fixedly connected on the first worm and gear group 4 on slide block 3, be fixedly connected on the fixed support 5 in the first worm and gear group 4, be fixedly connected on the second worm and gear group 6 on fixed support 5, the scissor-like jack 7 be fixedly connected with the second worm and gear group 6, is arranged on the force snesor 8 on scissor-like jack 7 and loading head 9.
Wherein, base 1 is rectangular, and be respectively provided with the first boss 10 for assembling with slide 2 up and down, left and right is respectively provided with one for mounting hole 11 hard-wired with worktable, and middle hollow out is with weight reduction.The equal length of both sides up and down of the first boss 10 and base 1.
Again incorporated by reference to shown in Fig. 3, in the embodiment of the present invention, slide 2 is roughly elongated, the first dovetail groove 20 that the first boss 10 that two ends along its length are respectively provided with a shape and base 1 matches, when slide 2 is installed on base 1, first boss 10 is held in the first dovetail groove 20, and slide 2 can be slided along the first boss 10 length direction respect thereto 1.Between first dovetail groove 20 at two ends, slide 2 is also provided with first threaded hole 21, first adjusting screw(rod) 101 one end and is arranged on base 1, and through the first threaded hole 21, is formed with it and be threaded.First adjusting screw(rod) 101 is parallel with the first boss 10.When rotating the first adjusting screw(rod) 101, the first adjusting screw(rod) 101 can drive slide 2 along the first adjusting screw(rod) 101 translation.First dovetail groove 20 and the first threaded hole 21 are all arranged on the same face of slide 2, are provided with the second boss 22 extended along its length for a pair at its back side slide 2, for assembling with slide block 3.
When slide 2 is installed on base 1, slide 2 is perpendicular with the first boss 10 of base 1.On the end face of first dovetail groove 20 wherein, fixed head 23 is fixedly connected with slide 2, which is provided with a bulge loop 230, inside establishes screw thread, and the second adjusting screw(rod) 102 is through this bulge loop 230 and formed and be threaded.Second adjusting screw(rod) 102 is positioned at outside the second boss 22 of slide 2, and is parallel to the second boss 22.
Please refer to shown in Fig. 4, slide block 3 comprises riser 30 and the top board 31 extended to homonymy from riser about 30 two ends respectively and base plate 32.Top board 31 and base plate 32 are parallel to each other, and all vertical with riser 30.Top board 31 and base plate 32 are at close riser 30 place, form the second dovetail groove 300 respectively, wherein, top board 31 and base plate 32 opposite side respectively form two the second dovetail grooves 300, for assembling with the second boss 22 on slide 2, when slide block 3 is installed on slide 2, the second boss 22 is held in the second dovetail groove 300, and slide block 3 can be slided along the relative slide 2 of the second boss 22 length direction.The setting of the first dovetail groove 20 and the second dovetail groove 300, also can alleviate the weight of respective place parts.Top board 31 and base plate 32 are respectively provided with a mounting hole 310, for fixedly mounting the first worm and gear group 4.The second threaded hole 320 is provided with between two the second dovetail grooves 300 of top board 31, through hole 330 is provided with between two the second dovetail grooves 300 of base plate 32, second threaded hole 320 is coaxial with through hole 330, to be formed with the second threaded hole 320 be threaded for installing the second adjusting screw(rod) 102, second adjusting screw(rod) 102.Top board 31 surface is also provided with one to the interior lug 311 establishing pilot hole, for installing the first worm screw 41 of the first worm and gear group 4.
The assembling of base 1, slide 2, slide block 3 and the first adjusting screw(rod) 101, second adjusting screw(rod) 102 please refer to shown in Fig. 5.In the present embodiment, the screw thread that the first adjusting screw(rod) 101, second adjusting screw(rod) 102, first threaded hole 21, second threaded hole 320 adopts is common coarse thread M12.
First worm and gear group 4 comprises the first worm gear 40, first worm screw 41 and the first worm-wheel shaft 401.First worm gear 40 is disc, can be meshed with the first worm screw 41.First worm-wheel shaft 401 is arranged on the first worm gear 40 central authorities, and vertical with the first worm gear 40.First worm screw 41 and the first worm-wheel shaft 401 perpendicular.
Establish the sleeve 50 of axis hole 501 and the upper flange 51 extended to homonymy from sleeve 50 end face and bottom surface respectively and lower flange 52 in fixed support 5 comprises, upper flange 51 and lower flange 52 are parallel to each other.The other end of upper flange 51 and lower flange 52 fixedly mounts the second worm screw 62 of the second worm and gear group 6.The height of sleeve 50 is slightly less than the height of the riser 30 of slide block 3, therefore makes fixed support 5 can be arranged between the top board 31 of slide block 3 and base plate 32, and the top board 31 of slide block 3 and the mounting hole 310 on base plate 32, coaxial with the axis hole 501 of fixed support 5.First worm-wheel shaft 401 of the first worm and gear group 4 to be inserted in the axis hole 501 of mounting hole 310 and fixed support 5 and is fixed by lock-screw, and the first worm gear 40 is meshed with the first worm screw 41 be arranged on slide block 3.The projection 53 of side mounting hole 530 is established, for installing the second worm and gear group 6 in sleeve 50 side of fixed support 5 is convexly equipped with.
Second worm and gear group 6 comprises the second worm gear 60, second worm screw 62 and the second worm-wheel shaft 602.Second worm gear 60 is disc, can be meshed with the second worm screw 62.Second worm-wheel shaft 602 is arranged on the second worm gear 60 central authorities, and vertical with the second worm gear 60.Second worm screw 62 and the second worm-wheel shaft 602 perpendicular.Second worm screw 62 and the first worm screw 41 perpendicular.
The first worm and gear group 4 of the present embodiment and the second worm and gear group 6 all need to possess auto-lock function after adjustment, therefore lead angle should not be too large; In addition, in process of the test, need slow adjusting angle, therefore ratio of gear should be larger; Consider structural compactness and install light etc., under the prerequisite meeting requirement of strength, modulus and centre distance should be as far as possible little.For this reason, two groups of worm and gears of the present embodiment have selected the identical common involute cylindrical worm of parameter and corresponding worm gear, and major parameter is as follows:
| Centre distance a | 40 | Ratio of gear i | 49 |
| Number of threads z 1 | 1 | Modulus m | 1.25 |
| Worm gear number of teeth z 2 | 49 | Reference diameter of worm d 1 | 20 |
| Lead-angle r | 3°34′35″ | Modification coefficient x 2 | -0.5 |
Scissor-like jack 7 is with common similar with car jack structure, and comprise framework 70 and be arranged on the loading acme thread bar 71 on framework 70, one of difference is that framework 70 is welded and fixed by the second worm gear 60 of mounting bracket 72 and the second worm and gear group 6.Mounting bracket 72 comprises lug 720, two lug 720 being provided with pin-and-hole for a pair and is parallel to each other, and its spacing just in time can hold the projection 53 of fixed support 5.When second worm and gear group 6 is assembled with fixed support 5 and mounting bracket 72, projection 53 is between two lugs 720, second worm-wheel shaft 602 is through the side mounting hole 530 of projection 53 and the pin-and-hole of two lugs 720, second worm gear 60 is welded and fixed with mounting bracket 72, and is meshed with the second worm screw 62 be arranged on fixed support 5.Mounting bracket 72 is fixedly installed on framework 70.
Although it should be noted that the embodiment of the present invention have employed the structure similar with car scissor-like jack used to general car, only there is a thrust bearing with on the loading trapezoidal screw of car lifting jack, only can bear unidirectional load, only can pressurized, can not tension.In order to make the scissor-like jack 7 in the embodiment of the present invention to load by tension compression bidirectional, the present embodiment design improves loading acme thread bar 71, as shown in Figure 6.By load the shaft shoulder on acme thread bar 71 and with load the set nut 711 that acme thread bar 71 welds together two thrust bearings 712 be fixed on pin 710 both sides, and then realize scissor-like jack 7 and undertaken drawing, pressing biaxial loadings by the rotation loading acme thread bar 71.
Introduce the course of work of embodiment of the present invention shutter member stiffness test charger below.First, as shown in Figure 1, the present embodiment definition X, Y, Z tri-axis, wherein, the first boss 22, first adjusting screw(rod) 101, second worm-wheel shaft 602 is X axis; First worm screw 41, force snesor 8, loading head 9 are all positioned at Y-axis; Second boss 22, second adjusting screw(rod) 102, first worm-wheel shaft 401, second worm screw 62, loading acme thread bar 71 are all positioned at Z-axis direction.On the table base 1 is fixed, position and the direction adjustment of loading head 9 can be realized by worm screw:
(1) X axis rotates: the second worm screw 62 rotating the second worm and gear group 6, because the second worm screw 62 is meshed with the second worm gear 60, drive second worm gear 60 rotates around X-axis (now concrete turning axle is the second worm-wheel shaft 602) by the rotation of the second worm screw 62, and scissor-like jack 7 is fixedly connected with the second worm gear 60, therefore scissor-like jack 7 and the loading head 9 be connected on scissor-like jack 7 also rotate around X-axis thereupon, achieve loading head 9 rotation in the X-axis and regulate.
(2) Z-axis direction is rotated: the first worm screw 41 rotating the first worm and gear group 4, and because the first worm screw 41 is meshed with the first worm gear 40, drive first worm gear 40 rotates around Z axis (now concrete turning axle is the first worm-wheel shaft 401) by the rotation of the first worm screw 41; Second worm and gear group 6 is arranged in the first worm and gear group 4 by fixed support 5, scissor-like jack 7 is fixedly connected with the second worm gear 60 again, therefore the second worm and gear group 6, scissor-like jack 7 and the loading head 9 be connected on scissor-like jack 7 also rotate around Z axis thereupon, achieve the rotation of loading head 9 in Z-axis direction and regulate.
(3) Y-axis is rotated: directly rotate loading head 9, but in the present embodiment without practical significance, repeat no more.
(4) X axis translation: rotate the first adjusting screw(rod) 101, be threaded because the first adjusting screw(rod) 101 is formed with the first threaded hole 21 of slide 2, the rotation of the first adjusting screw(rod) 101 will drive slide 2 on base 1 along X axis translation (the first boss 10 namely on base 1 and the slip between the first dovetail groove 20 on slide 2).Slide block 3 is arranged on slide 2, and the first worm and gear group 4, second worm and gear group 6 and scissor-like jack 7 are directly or indirectly arranged on slide block 3, therefore scissor-like jack 7 and be connected to loading head 9 on scissor-like jack 7 also with slide 2 along X axis translation, realize loading head 9 translation in the X-axis and regulate.
(5) Z-axis direction translation: rotate the second adjusting screw(rod) 102, be threaded because the second adjusting screw(rod) 102 is formed with the second threaded hole 320 on slide block 3, the rotation of the second adjusting screw(rod) 102 will with movable slider 3 on slide 2 along Z-axis direction translation (the second boss 22 namely on slide 2 and the slip between the second dovetail groove 300 on slide block 3).Slide block 3 is arranged on slide 2, and the first worm and gear group 4, second worm and gear group 6 and scissor-like jack 7 are directly or indirectly arranged on slide block 3, therefore scissor-like jack 7 and be connected to loading head 9 on scissor-like jack 7 also with slide block 3 along Z-axis direction translation, realize the translation of loading head 9 in Z-axis direction and regulate.
(6) Y-axis translation: rotate and load acme thread bar 71, loading head 6 is along Y-axis translation, identical with load operation.
As from the foregoing, shutter member stiffness test charger provided by the invention, two groups of worm and gear multiple degrees of freedoms are used to regulate loading direction, loading position is regulated by the worm drive of adjusting screw(rod), these two kinds of gear trains all can realize self-locking, and compact conformation, make adjustment easy for installation, take up room little.
The present invention is mainly used in vehicle body shutter member stiffness test, but also can be used for the occasion that other needs frequently adjust loading position and loading direction, can effectively save the charger Installation and Debugging time, improve test efficiency.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (14)
1. a shutter member stiffness test charger, is characterized in that, comprising: base (1);
Be slidably mounted in the slide (2) on described base (1);
Be slidably mounted in the slide block (3) on described slide (2);
Be fixedly connected on the first worm and gear group (4) on described slide block (3), described first worm and gear group (4) comprises the first worm gear (40), first worm screw (41) that can be meshed with described first worm gear (40) and is arranged on described first worm gear (40) central authorities and the first worm-wheel shaft (401) vertical with it;
Be fixedly connected on the fixed support (5) in described first worm and gear group (4);
Be fixedly connected on the second worm and gear group (6) on described fixed support (5), described second worm and gear group (6) comprises the second worm gear (60), second worm screw (62) that can be meshed with described second worm gear (60) and is arranged on described second worm gear (60) central authorities and the second worm-wheel shaft (602) vertical with it;
The scissor-like jack (7) be fixedly connected with described second worm and gear group (6);
Be arranged on the force snesor (8) on described scissor-like jack (7) and loading head (9);
Described first worm and gear group (4) drives described loading head (9) to rotate around described first worm-wheel shaft (401), and described second worm and gear group (6) drives described loading head (9) to rotate around described second worm-wheel shaft (602).
2. shutter member stiffness test charger according to claim 1, it is characterized in that, described first worm screw (41) is perpendicular with described first worm-wheel shaft (401), described second worm screw (62) is perpendicular with described second worm-wheel shaft (602), and described first worm screw (41) is perpendicular with described second worm screw (62).
3. shutter member stiffness test charger according to claim 2, it is characterized in that, described base (1) is rectangular, respectively be provided with the first boss (10) for assembling with described slide (2) up and down, described slide (2) is respectively provided with the first dovetail groove (20) that a shape and described first boss (10) match at two ends along its length, the first threaded hole (21) is provided with between described first dovetail groove (20), be provided with at the back side of described first dovetail groove (20) and the first threaded hole (21) and extend along described slide (2) length direction for a pair, for the second boss (22) assembled with described slide block (3).
4. shutter member stiffness test charger according to claim 3, it is characterized in that, first adjusting screw(rod) (101) one end is arranged on described base (1), and through described first threaded hole (21), formed with it and be threaded, described first adjusting screw(rod) (101) is parallel with described first boss (10).
5. shutter member stiffness test charger according to claim 3, it is characterized in that, described slide block (3) comprises riser (30) and respectively from described riser (30) the up and down top board (31) that extends to homonymy of two ends and base plate (32), described top board (31) and base plate (32) are parallel to each other, and all vertical with described riser (30); Described top board (31) and base plate (32), near described riser (30) place, form the second dovetail groove (300) being used for assembling with the second boss (22) on described slide (2) respectively.
6. shutter member stiffness test charger according to claim 5, is characterized in that, described top board (31) and base plate (32) are respectively provided with one for fixedly mounting the mounting hole (310) of described first worm-wheel shaft (401); The second threaded hole (320) is provided with between two the second dovetail grooves (300) of described top board (31), through hole (330) is provided with between two the second dovetail grooves (300) of described base plate (32), described second threaded hole (320) is coaxial with described through hole (330), for installing the second adjusting screw(rod) (102), described second adjusting screw(rod) (102) is formed with described second threaded hole (320) and is threaded.
7. shutter member stiffness test charger according to claim 6, is characterized in that, described second adjusting screw(rod) (102) is positioned at described second boss (22) outside, and is parallel to described second boss (22).
8. shutter member stiffness test charger according to claim 5, is characterized in that, described top board (31) surface is also provided with a pair for installing the lug (311) of described first worm screw (41).
9. shutter member stiffness test charger according to claim 5, it is characterized in that, described fixed support (5) is arranged between the top board (31) of described slide block (3) and base plate (32), the sleeve of axis hole (501) (50) and the upper flange (51) extended to homonymy from described sleeve (50) end face and bottom surface respectively and lower flange (52) is established in comprising, described upper flange (51) and lower flange (52) are parallel to each other, and establish the projection (53) of side mounting hole (530) in described sleeve (50) side is convexly equipped with.
10. shutter member stiffness test charger according to claim 9, it is characterized in that, described mounting hole (310) and axis hole (501) are coaxial, and described first worm-wheel shaft (401) to be inserted in described mounting hole (310) and axis hole (501) and fixed by lock-screw.
11. shutter member stiffness test chargers according to claim 9, it is characterized in that, described second worm screw (62) is arranged on described upper flange (51) and lower flange (52) other end away from described sleeve (50), and described second worm-wheel shaft (602) is through described side mounting hole (530).
12. shutter member stiffness test chargers according to claim 9, it is characterized in that, described scissor-like jack (7) comprises framework (70) and is arranged on the loading acme thread bar (71) on described framework (70), and described framework (70) is welded and fixed by mounting bracket (72) and described second worm gear (60).
13. shutter member stiffness test chargers according to claim 12, it is characterized in that, described mounting bracket (72) comprises and is provided with pin-and-hole a pair and the lug be parallel to each other (720), described projection (53) is positioned between described two lugs (720), and described second worm-wheel shaft (62) is through the pin-and-hole of described side mounting hole (530) and described two lugs (720).
14. shutter member stiffness test chargers according to claim 12, it is characterized in that, described loading acme thread bar (71) is assembled by pin (710) and described framework (70), described loading acme thread bar (71) also comprises two thrust bearings (712), and described thrust bearing (712) is fixed on described pin (710) both sides by the shaft shoulder on described loading acme thread bar (71) and with the set nut (711) that described loading acme thread bar (71) welds together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310380392.4A CN104422586B (en) | 2013-08-27 | 2013-08-27 | A kind of shutter member stiffness test loading device |
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| CN201310380392.4A CN104422586B (en) | 2013-08-27 | 2013-08-27 | A kind of shutter member stiffness test loading device |
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| CN104422586A true CN104422586A (en) | 2015-03-18 |
| CN104422586B CN104422586B (en) | 2017-08-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043753A (en) * | 2015-09-07 | 2015-11-11 | 河北工程大学 | Vehicle body installation fixing point static rigidity test bench and test method thereof |
| CN106908234A (en) * | 2017-03-21 | 2017-06-30 | 西北工业大学 | Load loading system and its system of selection of disk spring group for cabin door lock reliability test |
| CN110426224A (en) * | 2019-07-29 | 2019-11-08 | 山东科技大学 | Marine worker basis Multi-freedom model tests hydraulic servo actuator and loads attachment device |
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| CN105043753B (en) * | 2015-09-07 | 2018-02-06 | 河北工程大学 | Vehicle body installs fixing point Static stiffness testing stand and its test method |
| CN106908234A (en) * | 2017-03-21 | 2017-06-30 | 西北工业大学 | Load loading system and its system of selection of disk spring group for cabin door lock reliability test |
| CN106908234B (en) * | 2017-03-21 | 2018-11-16 | 西北工业大学 | For the load loading system of cabin door lock reliability test and its selection method of disk spring group |
| CN110426224A (en) * | 2019-07-29 | 2019-11-08 | 山东科技大学 | Marine worker basis Multi-freedom model tests hydraulic servo actuator and loads attachment device |
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