CN105510122A - Longitudinal loading mechanism for testing comprehensive performance of pedal stiffness - Google Patents

Longitudinal loading mechanism for testing comprehensive performance of pedal stiffness Download PDF

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Publication number
CN105510122A
CN105510122A CN201610077240.0A CN201610077240A CN105510122A CN 105510122 A CN105510122 A CN 105510122A CN 201610077240 A CN201610077240 A CN 201610077240A CN 105510122 A CN105510122 A CN 105510122A
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CN
China
Prior art keywords
screw
rotating disk
supporting plate
load maintainer
lifting
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Granted
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CN201610077240.0A
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Chinese (zh)
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CN105510122B (en
Inventor
胡睿
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Chongqing Feizhou Mechanical Automation Device Co Ltd
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Chongqing Feizhou Mechanical Automation Device Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

Abstract

The invention discloses a longitudinal loading mechanism for testing a comprehensive performance of pedal stiffness. The longitudinal loading mechanism can test the stiffness of a pedal in all directions, and can customize load applying positions and angles according to different standards, so that test methods are flexible, and test results are better. The longitudinal loading mechanism comprises a rotating disk I, wherein two columns I are arranged on the rotating disk I; linear lift guide rails I are respectively arranged on opposite sides of the two columns I; the linear lift guide rail I on each column I is respectively matched with a lift slide seat I, so that each lift slide seat I can slide up and down along the corresponding column I; rotating shafts are respectively arranged on the opposite sides of the two lift slide seats I; a servo cylinder mounting plate I is fixed between the two rotating shafts, so that the servo cylinder mounting plate I can rotate along axes of the two rotating shafts; an electric servo cylinder I for applying a longitudinal load to a test sample is mounted on the servo cylinder mounting plate I.

Description

For longitudinal load maintainer of pedal rigidity comprehensive performance test
Technical field
The present invention relates to pedal stiffness test technical field, particularly relate to a kind of longitudinal load maintainer for pedal rigidity comprehensive performance test.
Background technology
For ensureing the safe and reliable of critical piece in the use procedure of motor vehicles Life cycle, all need to carry out structural strength before all parts general assembly and durability degree uses test.The instruction of pedal direct manual control in using as vehicle operation sends parts, and its rigidity combination property directly has influence on throttle, can brake normally use, and then affects the security in motor-driven vehicle going process.Therefore rigidity comprehensive performance test to will be carried out to pedal before production.
When existing pedal stiffness test equipment applies longitudinal loading to pedal, position, angular setting can not be carried out, comprehensively can not carry out stiffness test to pedal, and, when using this pedal stiffness test equipment, can not be self-defined according to different standards, test method is fixed, even if the product of stand the test also can only meet national standard, foreign standard requirement can not be met.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of longitudinal load maintainer for pedal rigidity comprehensive performance test is provided, it comprehensively can carry out stiffness test to pedal, can according to different standards the position of self-defined applying longitudinal loading, angle, test method is flexible, and test effect is better.
The object of the present invention is achieved like this:
A kind of longitudinal load maintainer for pedal rigidity comprehensive performance test, comprise rotating disk I, described rotating disk I is provided with two columns I, the opposite sides of described two columns I arranges lifting line slideway I respectively, lifting line slideway I on each column I is equipped with lift slide I respectively, each lift slide I can be slided up and down along corresponding column I, the opposite sides of described two lift slides I arranges turning axle respectively, servoBcylinder installing plate I is fixed between described two turning axles, servoBcylinder installing plate I can be rotated along the axis of two turning axles, described servoBcylinder installing plate I is installed the electric servo cylinder I being used for test exemplar being applied to longitudinal loading.
Lead to rotate rotating disk I, and lock the position of rotating disk I, further, described longitudinal load maintainer also comprises supporting plate, and described rotating disk I is supported in supporting plate rotationally, and described supporting plate is provided with at least one lock-screw I, described rotating disk I arranges deep-slotted chip breaker coordinate with lock-screw I, form the guiding that rotating disk I is rotated, the lower end of described lock-screw I through the deep-slotted chip breaker on rotating disk I and with supporting plate threaded engagement, for locking the position of rotating disk I.
In order to realize the rotation of rotating disk I, further, described supporting plate is provided with the rotating shaft of vertical direction by bearing, described rotating disk I circumference is fixed in rotating shaft.
Lead to rotate electric servo cylinder I, and lock the position of electric servo cylinder I, further, the opposite sides of described two lift slides I fixes rotating disk II respectively, described rotating disk II is provided with axial bore, in this axial bore, bearing is set by bearing seat, described turning axle is supported in bearing, described electric servo cylinder I is provided with lock-screw II, described rotating disk II arranges deep-slotted chip breaker coordinate with lock-screw II, form the guiding that electric servo cylinder I is rotated, the deep-slotted chip breaker that the screw rod end of this lock-screw II is provided with through rotating disk II and with electric servo cylinder I threaded engagement, for locking the position of electric servo cylinder I.
In order to realize the accurate electric up-down of electric servo cylinder I, improve the precision of test, further, the upper end of the column I described in is provided with lifting motor plate, stepping motor I installed by described lifting motor plate, corresponding column I is provided with elevating screw seat I, rotatable supporting elevation ball screw I on described elevating screw seat I, the upper end of described lifting ball screw I connects stepping motor I, the lower end threaded engagement of described lifting ball screw I has lifting nut seat I, form leading screw and nut mechanism, lift slide I on corresponding column I is fixedly connected with lifting nut seat I, make stepping motor I lift slide I can be driven to slide up and down by leading screw and nut mechanism.
Adjustable along the position of base transverse direction in order to realize longitudinal load maintainer, make longitudinal load maintainer can apply longitudinal loading to the pedal of all size in multiple position, further, described longitudinal load maintainer also comprises first substrate, described first substrate is provided with translated linear guide rail I, the translation slide I that described supporting plate is arranged by below coordinates with translated linear guide rail I, described first substrate is provided with translation screw rodb base I, rotatable support translation ball screw I on described translation screw rodb base I, translational nut seat I is set below described supporting plate, described translational nut seat I and translation ball screw I threaded engagement, form feed screw nut's structure, one end of translation ball screw I arranges drive unit I, drive unit I can drive supporting plate to slide along translated linear guide rail I by feed screw nut's structure.
Further, described drive unit I adopts handwheel.
In order to planker location is gone up on the first substrate, further, described first substrate is provided with the locking strip being parallel to translation ball screw I, described locking strip is provided with T-slot, arrange T-shaped piece below described supporting plate to coordinate with the T-slot on locking strip, form the locking position on supporting plate vertical direction.
Further, swivel plate is fixed respectively in the two ends, left and right of described servoBcylinder installing plate I, and described swivel plate and turning axle circumference are fixed.
Owing to have employed technique scheme, the present invention has following beneficial effect:
When needs electric cylinder carries out tracking measurement due to part stress point, only lock-screw II need be unscrewed.Mounting means due to electric servo cylinder I is gantry structure, and stress point always passes through the rotation center of electric servo cylinder I, does not have additional moment.The bearings on both sides during the rotation of electric servo cylinder I, even if the lock-screw II that comes loose also can not cause large measurement clearance, tracking measurement precision is higher.
Longitudinal load maintainer in the horizontal direction, the adjustable angle of vertical direction, can also adjusting position up and down, realize longitudinal load maintainer in the horizontal direction, vertical direction multi-angle applies longitudinal loading to pedal, therefore, it comprehensively can carry out stiffness test to pedal, can according to different standards the position of self-defined imposed load, angle, test method is flexible, and test effect is better.
Accompanying drawing explanation
Fig. 1 is operating diagram of the present invention;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is that schematic diagram is looked on a left side of Fig. 1;
Fig. 4 is structural representation of the present invention;
Fig. 5 is the schematic top plan view of Fig. 4;
Fig. 6 is that schematic diagram is looked on a left side of Fig. 4;
Fig. 7 is the A-A cross-sectional schematic of Fig. 4;
Fig. 8 is the structural representation of horizontal load maintainer;
Fig. 9 is the schematic top plan view of Fig. 8;
Figure 10 is that schematic diagram is looked on the right side of Fig. 8;
Figure 11 is the structural representation of test exemplar installing mechanism;
Figure 12 is the schematic top plan view of Figure 11;
Figure 13 is that schematic diagram is looked on a left side of Figure 11;
Figure 14 is the B-B cross-sectional schematic of Figure 11.
Embodiment
See Fig. 4 to Fig. 7, for a kind of preferred embodiment of the longitudinal load maintainer for pedal rigidity comprehensive performance test, comprise rotating disk I 206, described rotating disk I 206 is provided with two columns I 207, the opposite sides of described two columns I 207 arranges lifting line slideway I 223 respectively, lifting line slideway I 223 on each column I 207 is equipped with lift slide I 224 respectively, each lift slide I 224 can be slided up and down along corresponding column I 207, the opposite sides of described two lift slides I 224 arranges turning axle 220 respectively, servoBcylinder installing plate I 209 is fixed between described two turning axles 220, swivel plate 222 is fixed at the two ends, left and right of described servoBcylinder installing plate I 209 respectively, described swivel plate 222 is fixing with turning axle 220 circumference, servoBcylinder installing plate I 209 can be rotated along the axis of two turning axles 220, described servoBcylinder installing plate I 209 is installed the electric servo cylinder I 210 being used for test exemplar 500 being applied to longitudinal loading.
Described longitudinal load maintainer 200 also comprises supporting plate 205, and described rotating disk I 206 is supported in supporting plate 205 rotationally, in the present embodiment, described supporting plate 205 is provided with the rotating shaft 217 of vertical direction by bearing, and described rotating disk I 206 circumference is fixed in rotating shaft 217.Described supporting plate 205 is provided with 4 lock-screws I, described rotating disk I 206 arranges deep-slotted chip breaker coordinate with lock-screw I, form the guiding that rotating disk I 206 is rotated, the lower end of described lock-screw I through the deep-slotted chip breaker on rotating disk I 206 and with supporting plate 205 threaded engagement, for locking the position of rotating disk I 206.In the present embodiment, the adjustment of rotating disk I 206 and lock portion are locked by 4 M12 lock-screws I.Due to contact area greatly and be again circumference uniform distribution, so do not have the generation of additional moment, connect good rigidly simultaneously.Adjustment, after only 4 lock-screws I need being relaxed, is rotated rotating disk I 206 to suitable position, again tighten lock-screw I.
The opposite sides of described two lift slides I fixes rotating disk II respectively, described rotating disk II is provided with axial bore, in this axial bore, bearing is set by bearing seat, described turning axle is supported in bearing, described electric servo cylinder I 210 is provided with lock-screw II, described rotating disk II 208 arranges deep-slotted chip breaker coordinate with lock-screw II, form the guiding that electric servo cylinder I 210 is rotated, the deep-slotted chip breaker that the screw rod end of this lock-screw II is provided with through rotating disk II 208 and with electric servo cylinder I 210 threaded engagement, for locking the position of electric servo cylinder I 210.
The upper end of the column I 207 described in is provided with lifting motor plate 212, stepping motor I 211 installed by described lifting motor plate 212, corresponding column I 207 is provided with elevating screw seat I 213, rotatable supporting elevation ball screw I 214 on described elevating screw seat I 213, the upper end of described lifting ball screw I 214 connects stepping motor I 211, the lower end threaded engagement of described lifting ball screw I 214 has lifting nut seat I 215, form leading screw and nut mechanism, lift slide I 224 on corresponding column I 207 is fixedly connected with lifting nut seat I 215, make stepping motor I 211 lift slide I 224 can be driven to slide up and down by leading screw and nut mechanism.Described two columns I 207 are respectively equipped with lock-screw, for locking the position of lift slide I 224.Electric cylinder lifting is controlled by lifting motor, adjustment very light.
Described longitudinal load maintainer 200 also comprises first substrate 201, described first substrate 201 is provided with translated linear guide rail I 203, the translation slide I 204 that described supporting plate 205 is arranged by below coordinates with translated linear guide rail I 203, described first substrate 201 is provided with translation screw rodb base I 226, rotatable support translation ball screw I 227 on described translation screw rodb base I 226, below described supporting plate 205, translational nut seat I 216 is set, described translational nut seat I 216 and translation ball screw I 227 threaded engagement, form feed screw nut's structure, one end of translation ball screw I 227 arranges drive unit I 225, in the present embodiment, described drive unit I 225 adopts handwheel.Drive unit I 225 can drive supporting plate 205 to slide along translated linear guide rail I 203 by feed screw nut's structure.Described first substrate 201 is provided with the locking strip 202 being parallel to translation ball screw I 227, described locking strip 202 is provided with T-slot, arrange T-shaped piece below described supporting plate 205 to coordinate with the T-slot on locking strip 202, form the locking position on supporting plate 205 vertical direction.
See Fig. 1 to Fig. 3, use schematic diagram of the present invention, comprise base 100, and the longitudinal load maintainer 200, horizontal load maintainer 300, the test exemplar installing mechanism 400 that are arranged on base, described test exemplar installing mechanism 400 is for installation test exemplar 500, described longitudinal load maintainer 200 is for applying longitudinal loading to test exemplar 500, and described horizontal load maintainer 300 is for applying transverse load to test exemplar 500.
See Fig. 1 to Fig. 3, described base 100 is T-slot platform, the upper surface of described base 100 is provided with T-slot 101, described longitudinal load maintainer 200, horizontal load maintainer 300, test exemplar installing mechanism 400 are engaged in the T-slot 101 of base respectively by T-shaped slide block, make longitudinal load maintainer 200, horizontal load maintainer 300, horizontal, the lengthwise position of test exemplar installing mechanism 400 all can adjust.Base 100 adopts Plate Welding to form.By screw, upper substrate and lower member are formed by connecting, make it obtain high rigidity.Only need 2 people can complete the adjustment of other mechanisms on base 100.
See Fig. 4 to Fig. 7, described longitudinal load maintainer 200 comprises rotating disk I 206, described rotating disk I 206 is provided with two columns I 207, the opposite sides of described two columns I 207 arranges lifting line slideway I 223 respectively, the lifting line slideway I 223 of each column I 207 is equipped with lift slide I 224 respectively, each lift slide I 224 can be slided up and down along corresponding column I 207, the opposite sides of described two lift slides I 224 arranges turning axle 220 respectively, between described two columns I 207, servoBcylinder installing plate I 209 is set, described servoBcylinder installing plate I 209 is installed the electric servo cylinder I 210 being used for test exemplar 500 being applied to longitudinal loading, swivel plate 222 is fixed at the two ends, left and right of described servoBcylinder installing plate I 209 respectively, described swivel plate 222 is fixing with turning axle 220 circumference.
The opposite sides of described two lift slides I 224 fixes rotating disk II 208 respectively, rotating disk II 208 and two lift slides I 224 arrange liner plate 218, described rotating disk II 208 is provided with axial bore, in axial bore, bearing 221 is set by bearing seat 219, described turning axle 220 is supported in bearing 221, described electric servo cylinder I 210 is provided with lock-screw II, described rotating disk II 208 arranges deep-slotted chip breaker coordinate with lock-screw II, form the guiding that electric servo cylinder I 210 is rotated, the deep-slotted chip breaker that the screw rod end of this lock-screw II is provided with through rotating disk II 208 and with electric servo cylinder I 210 threaded engagement, for locking the position of electric servo cylinder I 210.
Described longitudinal load maintainer 200 also comprises the first substrate 201 be arranged on base 100, described first substrate 201 is provided with the translated linear guide rail I 203 along base 100 horizontal expansion, described first substrate 201 is provided with supporting plate 205, the translation slide I 204 that described supporting plate 205 is arranged by below coordinates with translated linear guide rail I 203, supporting plate 205 can be slided along translated linear guide rail I 203, described rotating disk I 206 is supported in supporting plate 205 rotationally, in the present embodiment, described supporting plate 205 is provided with the rotating shaft 217 of vertical direction by bearing, described rotating disk I 206 circumference is fixed in rotating shaft 217, described supporting plate 205 is provided with at least one lock-screw I, described rotating disk I 206 arranges deep-slotted chip breaker coordinate with lock-screw I, form the guiding that rotating disk I 206 is rotated, the lower end of described lock-screw I through the deep-slotted chip breaker on rotating disk I 206 and with supporting plate 205 threaded engagement, for locking the position of rotating disk I 206, described first substrate 201 is provided with translation screw rodb base I 226, described translation screw rodb base I 226 rotatably supports translation ball screw I 227 by bearing, below described supporting plate 205, translational nut seat I 216 is set, described translational nut seat I 216 and translation ball screw I 227 threaded engagement, form feed screw nut's structure, one end of translation ball screw I 227 arranges drive unit I 225, in the present embodiment, described drive unit I 225 adopts handwheel.Described first substrate 201 is also provided with the locking strip 202 along base 100 horizontal expansion, described locking strip 202 is provided with T-slot, arrange T-shaped piece below described supporting plate 205 to coordinate with the T-slot on locking strip 202, form the locking position on supporting plate 205 vertical direction.
One root post I 207 is provided with lifting motor plate 212, stepping motor I 211 installed by described lifting motor plate 212, corresponding column I 207 is provided with elevating screw seat I 213, rotatable supporting elevation ball screw I 214 on described elevating screw seat I 213, the upper end of described lifting ball screw I 214 connects stepping motor I 211, the lower end threaded engagement of described lifting ball screw I 214 has lifting nut seat I 215, form leading screw and nut mechanism, lift slide I 224 on corresponding column I 207 is fixedly connected with lifting nut seat I 215, make stepping motor I 211 lift slide I 224 can be driven to slide up and down by leading screw and nut mechanism.In the present embodiment, described lift slide I 224 is fixedly connected with by web joint with corresponding rotating disk II 208.
See Fig. 8 to Figure 10, described horizontal load maintainer 300 comprises servoBcylinder installing plate II 302, this servoBcylinder installing plate II 302 is installed the second electric servo cylinder 301 being used for test exemplar 500 being applied to transverse load.Described horizontal load maintainer 300 also comprises the second substrate 304 be arranged on base 100, described second substrate 304 is provided with along base 100 translated linear guide rail II 307 extending longitudinally, the translation slide II 306 that described servoBcylinder installing plate II 302 is arranged by below coordinates with translated linear guide rail II 307, servoBcylinder installing plate II 302 can be slided along translated linear guide rail II 307, described second substrate 304 is provided with translation screw rodb base II, described translation screw rodb base II rotatably supports translation ball screw II 309 by bearing, the below of described servoBcylinder installing plate II 302 arranges translational nut seat II 308, described translational nut seat II 308 and translation ball screw II 309 threaded engagement, form feed screw nut's structure, one end of translation ball screw II 309 arranges drive unit II 305.In the present embodiment, described drive unit II 305 adopts handwheel.Certainly, described drive unit I 225, drive unit II 305 also can adopt motor or other propulsion system.
See Figure 11 to Figure 14, described test exemplar installing mechanism 400 comprises gantry base plate 410, gantry base plate 410 is installed two columns II 406, two installation gantry, column II 406 upper end upper substrates 411, described gantry upper substrate 411 installs stepping motor II 413, this stepping motor II 413 drives lifting ball screw II 417, gantry workpiece mounting plate 401 is provided with between two columns II 406, gantry workpiece mounting plate 401 is fixed lifting nut seat II, described lifting ball screw II 417 and lifting nut seat II threaded engagement, lift slide II 408 is fixed by slide installing plate 407 in the both sides of described gantry workpiece mounting plate 401, the lifting line slideway 402 that lift slide II 408 is provided with two column II 406 opposite sides coordinates, the fixture 422 of fixation test exemplar 500 on described gantry workpiece mounting plate 401.In the present embodiment, the both sides of described gantry workpiece mounting plate 401 are also fixed with gantry latch segment 403 respectively, described two columns II 406 are respectively equipped with T-shaped gantry locking slot 405, each gantry latch segment 403 is arranged respectively gantry to lock T-shaped piece 404 and coordinate with T-shaped gantry locking slot 405, form the guiding to gantry workpiece mounting plate 401 and locking, described gantry is locked T-shaped piece 404 and is fixed by screw 409.
Further, described gantry upper substrate 411 is installed lifting back up pad 412, described lifting back up pad 412 is installed lifting bearing mounting plate 415, stepping motor II 413 is installed in the below of described lifting bearing mounting plate 415, active synchronization belt wheel 414 is installed in the top of lifting bearing mounting plate 415, and passive and synchronous belt wheel 421, described stepping motor II 413 drives active synchronization belt wheel 414, active synchronization belt wheel 414 drives passive and synchronous belt wheel 421 by Timing Belt 416, passive and synchronous belt wheel 421 is fixed on lifting ball screw II 417, the rotating shaft of described stepping motor II 413 and lifting ball screw II 417 upper end are respectively by bearing seat 419, bearing 418 is supported in lifting bearing mounting plate 415, bearing seat 419 is sealed by end cap 420.
Described gantry workpiece mounting plate 401 is provided with crisscross T-slot, each longitudinal T-slot is perpendicular to each horizontal T-slot, described fixture 422 is engaged in the T-slot on gantry workpiece mounting plate 401 by T-shaped slide block, horizontal, the lengthwise position of fixture 422 all can be adjusted.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.

Claims (9)

1. the longitudinal load maintainer for pedal rigidity comprehensive performance test, it is characterized in that, comprise rotating disk I (206), described rotating disk I (206) is provided with two columns I (207), the opposite sides of described two columns I (207) arranges lifting line slideway I (223) respectively, lifting line slideway I (223) on each column I (207) is equipped with lift slide I (224) respectively, each lift slide I (224) can be slided up and down along corresponding column I (207), the opposite sides of described two lift slides I (224) arranges turning axle (220) respectively, servoBcylinder installing plate I (209) is fixed between described two turning axles (220), servoBcylinder installing plate I (209) can be rotated along the axis of two turning axles (220), described servoBcylinder installing plate I (209) is upper installs the electric servo cylinder I (210) being used for test exemplar (500) being applied to longitudinal loading.
2. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 1, it is characterized in that, described longitudinal load maintainer (200) also comprises supporting plate (205), described rotating disk I (206) is supported in supporting plate (205) rotationally, described supporting plate (205) is provided with at least one lock-screw I, described rotating disk I (206) arranges deep-slotted chip breaker coordinate with lock-screw I, form the guiding that rotating disk I (206) is rotated, the lower end of described lock-screw I through the deep-slotted chip breaker on rotating disk I (206) and with supporting plate (205) threaded engagement, for locking the position of rotating disk I (206).
3. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 2, it is characterized in that, described supporting plate (205) is provided with the rotating shaft (217) of vertical direction by bearing, described rotating disk I (206) circumference is fixed in rotating shaft (217).
4. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 2, it is characterized in that, the opposite sides of described two lift slides I (224) fixes rotating disk II (208) respectively, described rotating disk II (208) is provided with axial bore, in this axial bore, bearing (221) is set by bearing seat (219), described turning axle (220) is supported in bearing (221), described electric servo cylinder I (210) is provided with lock-screw II, described rotating disk II (208) arranges deep-slotted chip breaker coordinate with lock-screw II, form the guiding that electric servo cylinder I (210) is rotated, the deep-slotted chip breaker that the screw rod end of this lock-screw II is provided with through rotating disk II (208) and with electric servo cylinder I (210) threaded engagement, for locking the position of electric servo cylinder I (210).
5. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 2, it is characterized in that, the upper end of the column I (207) described in is provided with lifting motor plate (212), described lifting motor plate (212) is upper installs stepping motor I (211), corresponding column I (207) is provided with elevating screw seat I (213), the upper rotatable supporting elevation ball screw I (214) of described elevating screw seat I (213), the upper end of described lifting ball screw I (214) connects stepping motor I (211), the lower end threaded engagement of described lifting ball screw I (214) has lifting nut seat I (215), form leading screw and nut mechanism, lift slide I (224) on corresponding column I (207) is fixedly connected with lifting nut seat I (215), make stepping motor I (211) lift slide I (224) can be driven to slide up and down by leading screw and nut mechanism.
6. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 2, it is characterized in that, described longitudinal load maintainer (200) also comprises first substrate (201), described first substrate (201) is provided with translated linear guide rail I (203), the translation slide I (204) that described supporting plate (205) is arranged by below coordinates with translated linear guide rail I (203), described first substrate (201) is provided with translation screw rodb base I (226), the upper rotatable support translation ball screw I (227) of described translation screw rodb base I (226), described supporting plate (205) below arranges translational nut seat I (216), described translational nut seat I (216) and translation ball screw I (227) threaded engagement, form feed screw nut's structure, one end of translation ball screw I (227) arranges drive unit I (225), drive unit I (225) can drive supporting plate (205) to slide along translated linear guide rail I (203) by feed screw nut's structure.
7. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 6, is characterized in that, described drive unit I (225) adopts handwheel.
8. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 6, it is characterized in that, described first substrate (201) is provided with the locking strip (202) being parallel to translation ball screw I (227), described locking strip (202) is provided with T-slot, described supporting plate (205) below arranges T-shaped piece and coordinates with the T-slot on locking strip (202), forms the locking position on supporting plate (205) vertical direction.
9. the longitudinal load maintainer for pedal rigidity comprehensive performance test according to claim 1, it is characterized in that, swivel plate (222) is fixed at the two ends, left and right of described servoBcylinder installing plate I (209) respectively, and described swivel plate (222) is fixing with turning axle (220) circumference.
CN201610077240.0A 2016-02-03 2016-02-03 Longitudinal load maintainer for deck comprehensive performance test Active CN105510122B (en)

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