CN102620940B - Rear wall strength test device for driving cabs of commercial vehicles - Google Patents
Rear wall strength test device for driving cabs of commercial vehicles Download PDFInfo
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- CN102620940B CN102620940B CN201210087657.7A CN201210087657A CN102620940B CN 102620940 B CN102620940 B CN 102620940B CN 201210087657 A CN201210087657 A CN 201210087657A CN 102620940 B CN102620940 B CN 102620940B
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- calliper rule
- slide calliper
- guide rail
- strength test
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Abstract
The invention discloses a rear wall strength test device for driving cabs of commercial vehicles, which comprises a mounting frame assembly, a flexible driving device, a rigid loading mechanism, a displacement measuring device and a force measuring device, wherein the mounting frame assembly is provided with a pair of guide rails arranged in parallel, the pair of guide rails is arranged along the longitudinal direction of the vehicle, the rigid loading mechanism is arranged on the pair of guide rails in a sliding mode, the flexible driving device is fixed on the mounting frame assembly, an output end of the flexible driving device is connected with the rigid loading mechanism through the force measuring device, and the displacement measuring device is arranged on the guide rails. The rear wall strength test device for driving cabs of commercial vehicles has the advantages that the structure is simple, the loading direction and the loading speed are stable, the data measurement is accurate, and test results can fully reflect the real condition of the real facts of the rear wall strength of driving cabs.
Description
Technical field
The present invention relates to commercial car strength test device, relate in particular to a kind of commercial-vehicle cab back wall strength test device.
Background technology
Along with the development of commercial vehicle rapid globalization, its safety problem comes into one's own day by day.The safety feature test of commercial-vehicle cab is the important channel of evaluating commercial vehicle collision safety, and wherein the strength test of commercial-vehicle cab back wall is an important indicator that judges commercial-vehicle cab security.
Conventionally position, commercial-vehicle cab dead astern is used for placing container, and its quality is larger.Once the fixed sturcture of container lost efficacy, will bump with cabin rear wall, make it bear larger load.Meanwhile, will there is larger distortion in cabin rear wall structure, thereby extruding occupant's living space even causes occupant's injury.Commercial-vehicle cab structural member is to be welded after the steel plate punched between 0.8 ~ 2.0mm with thickness, and container is the box-structure that the steel plate between 5.0 ~ 8.0mm is directly welded with thickness, and its rigidity is far above the rigidity of pilothouse.Therefore testing requirements is carried out static load extruding by rigidity obstacle to cabin rear wall, simulate this crash mode.In process of the test, rigidity obstacle should keep under stable loading velocity, perpendicular to longitudinal center's axis of vehicle, and is parallel to central axis and moves.Loading direction, loading velocity and loading position determine after, the accuracy of test findings DATA REASONING and the applicability of test unit are all the technical matterss that commercial car back wall strength test device will solve.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide that a kind of simple in structure, loading direction and loading velocity are stable, DATA REASONING accurately, test findings can fully reflect the commercial-vehicle cab back wall strength test device of cabin rear wall intensity truth.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of commercial-vehicle cab back wall strength test device, comprise mounting bracket assembly, retractable driving device, rigidity load maintainer, displacement measuring device and device for measuring force, described mounting bracket assembly is provided with the guide rail that pair of parallel is arranged, described pair of guide rails is along longitudinal direction of car setting, described rigidity load maintainer is slidedly arranged in pair of guide rails, described retractable driving device is fixed on mounting bracket assembly, the output terminal of retractable driving device is connected with described rigidity load maintainer by device for measuring force, and described displacement measuring device is installed on described guide rail.
Described mounting bracket assembly comprises bracket base, drives bearing and a pair of installing plate, described a pair of installing plate is installed in described bracket base below, described driving bearing is installed on bracket base, described retractable driving device is installed in and drives on bearing, described bracket base both sides are equipped with guide supporting bar, described guide supporting bar lower end is connected with bracket base, and upper end is connected with the guide rail of homonymy.
Described installing plate is provided with many row's securing member mounting holes, and described a pair of installing plate inner side is provided with the steel plate pad for adjusting assemblage gap, between described guide rail and described driving bearing, is connected with stiffener.
Described rigidity load maintainer comprises loading rigid plate, Connection Block, sliding sleeve and many stable connection bars, described loading rigid plate front is the plane perpendicular to longitudinal direction of car, load the rigid plate back side and be provided with reinforcement, described Connection Block one end is connected with the back side of described loading rigid plate, the other end is connected with described device for measuring force, described sliding sleeve is sheathed on described guide rail, sliding sleeve and load between rigid plate, load between rigid plate and Connection Block and be all connected by described stable connection bar between sliding sleeve and Connection Block.
Described displacement measuring device comprises slide calliper rule orienting sleeve, slide calliper rule guide pole, slide calliper rule and clamping screw, described slide calliper rule guide pole and slide calliper rule are parallel to guide rail setting, described slide calliper rule guide pole is fixed on by guide rail, described slide calliper rule orienting sleeve is slidedly arranged on slide calliper rule guide pole, and by described clamping screw locking positioning, described slide calliper rule are slidedly arranged in the draw-in groove on described slide calliper rule orienting sleeve.
One end that described device for measuring force and described retractable driving device are joined is provided with cone tank, one end that described retractable driving device and device for measuring force join is provided with taper projection, described cone tank and taper projection concentric arrange, and central axis and guide rail parallel, the tapering of described taper projection is greater than the tapering of cone tank.
The flexible loading axis of described retractable driving device and the axis of described guide rail are on same surface level.
Compared with prior art, the invention has the advantages that:
1, commercial-vehicle cab back wall strength test device of the present invention, lead to loading by the pair of guide rails arranging along longitudinal direction of car, guarantee that loading direction is accurate, stable, retractable driving device is fixed on mounting bracket assembly can keep stable loading velocity, for the fidelity that improves impact test has been created advantage, can guarantee that data experimental measurement is accurate, make test findings can fully reflect cabin rear wall intensity truth; Meanwhile, mounting bracket assembly can be fixed on the vehicle frame of test vehicle, and test unit is reduced the dependence of test site, has improved test efficiency.
2, the mounting bracket assembly in the present invention is simple in structure, and has enough intensity, for retractable driving device and guide rail provide reliable, stable support.
3, the installing plate in the mounting bracket assembly in the present invention is provided with many row's securing member mounting holes, in the time that mounting bracket assembly is fixedly connected with the vehicle frame of test vehicle, the mounting hole of suitable height can be selected, the height of the collision surface of contact between rigidity load maintainer and cabin rear wall can be controlled with this; Installing plate inner side is provided with the steel plate pad for adjusting assemblage gap, is fastenedly connected, thereby makes the strength test of test unit of the present invention applicable to the cabin rear wall of different automobile types for the longitudinal beam of Matching installation plate and different in width.
4, loading rigid plate front be the plane perpendicular to longitudinal direction of car, and sliding sleeve is connected by stable connection bar with loading between rigid plate, make in loading is moved rigid plate plane all the time with the vertical plane parallel of longitudinal direction of car, further guarantee the accuracy of testing.
5, the slide calliper rule guide pole of displacement measuring device is parallel to guide rail and is fixed on by guide rail, by slide calliper rule orienting sleeve and slide calliper rule, can read intuitively mobile displacement, and guarantees the accuracy of measured value.
6, device for measuring force, by the coordinating of cone tank and taper projection, can prevent device for measuring force diameter run-out, makes device for measuring force moving direction consistent with loading direction, and its acting force bearing is all along test vehicle longitudinal direction, the accuracy that guarantee effect power is measured.
7, the flexible loading axis of retractable driving device and the axis of guide rail, on same surface level, can guarantee that drive unit stably applies static load.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The present invention is installed in the structural representation while testing in commercial car by Fig. 2.
Fig. 3 is the partial enlarged drawing at the displacement measuring device place in the present invention.
Fig. 4 is device for measuring force in the present invention and the partial enlarged drawing of retractable driving device junction.
In figure, each label represents:
1, mounting bracket assembly; 2, retractable driving device; 3, rigidity load maintainer; 4, displacement measuring device; 5, device for measuring force; 6, guide rail; 7, test vehicle; 11, installing plate; 12, bracket base; 13, drive bearing; 14, guide supporting bar; 15, pad; 16, stiffener; 21, taper projection; 31, load rigid plate; 32, Connection Block; 33, stable connection bar; 34, reinforcement; 35, sliding sleeve; 41, slide calliper rule orienting sleeve; 42, slide calliper rule guide pole; 43, slide calliper rule; 44, clamping screw; 51, cone tank.
Embodiment
Fig. 1 to Fig. 4 shows a kind of commercial-vehicle cab back wall strength test device embodiment of the present invention, this test unit comprises mounting bracket assembly 1, retractable driving device 2, rigidity load maintainer 3, displacement measuring device 4 and device for measuring force 5, mounting bracket assembly 1 is provided with the guide rail 6 that pair of parallel is arranged, pair of guide rails 6 is along longitudinal direction of car setting, rigidity load maintainer 3 is slidedly arranged in pair of guide rails 6, when loading, by guide rail 6, loading direction is led, guarantee that loading direction is accurate, stable, retractable driving device 2 is fixed on mounting bracket assembly 1, can keep stable loading velocity, for the fidelity that improves impact test has been created advantage, the output terminal of retractable driving device 2 is connected with rigidity load maintainer 3 by device for measuring force 5, displacement measuring device 4 is installed on guide rail 6, the flexible loading axis of retractable driving device 2 and the axis of guide rail 6 are on same surface level, can guarantee that retractable driving device 2 stably applies static load, guarantee that data experimental measurement is accurate, make test findings can fully reflect cabin rear wall intensity truth, meanwhile, mounting bracket assembly 1 can be fixed on the vehicle frame of test vehicle 7, and test unit is reduced the dependence of test site, has improved test efficiency.
In the present embodiment, mounting bracket assembly 1 comprises bracket base 12, drive bearing 13 and a pair of installing plate 11, a pair of installing plate 11 is installed in bracket base 12 belows, drive bearing 13 to be installed on bracket base 12, retractable driving device 2 is installed in and drives on bearing 13, bracket base 12 both sides are equipped with guide supporting bar 14, guide supporting bar 14 lower ends are connected with bracket base 12, upper end is connected with the guide rail 6 of homonymy, the mounting bracket assembly 1 of this structure is simple in structure, and there is enough intensity, for retractable driving device 2 and guide rail 6 provide reliable, stable support.
In the present embodiment, installing plate 11 is provided with many row's securing member mounting holes, in the time that mounting bracket assembly 1 is fixedly connected with the vehicle frame of test vehicle, can select the mounting hole of suitable height, can control the height of the collision surface of contact between rigidity load maintainer 3 and cabin rear wall with this; A pair of installing plate 11 inner sides are provided with the steel plate pad 15 for adjusting assemblage gap, be used for adjusting assemblage gap, installing plate 11 can be fastenedly connected with the longitudinal beam of different in width, thereby make the strength test of test unit of the present invention applicable to the cabin rear wall of different automobile types.Between guide rail 6 and driving bearing 13, be connected with stiffener 16, for strengthening the support strength to guide rail 6, guarantee the stable of guide rail 6.
In the present embodiment, rigidity load maintainer 3 comprises loading rigid plate 31, Connection Block 32, sliding sleeve 35 and many stable connection bars 33, loading rigid plate 31 fronts is the plane perpendicular to longitudinal direction of car, load rigid plate 31 back sides and be provided with reinforcement 34, Connection Block 32 one end are connected with the back side that loads rigid plate 31, the other end is connected with device for measuring force 5, sliding sleeve 35 is sheathed on guide rail 6, between sliding sleeve 35 and loading rigid plate 31, load between rigid plate 31 and Connection Block 32 and be all connected by stable connection bar 33 between sliding sleeve 35 and Connection Block 32, load in motion, load rigid plate 31 plane all the time with the vertical plane parallel of longitudinal direction of car, can further guarantee the accuracy of test.
In the present embodiment, displacement measuring device 4 comprises slide calliper rule orienting sleeve 41, slide calliper rule guide pole 42, slide calliper rule 43 and clamping screw 44, slide calliper rule guide pole 42 and slide calliper rule 43 are parallel to guide rail 6 and arrange, it is other that slide calliper rule guide pole 42 is fixed on guide rail 6, slide calliper rule orienting sleeve 41 is slidedly arranged on slide calliper rule guide pole 42, and by clamping screw 44 locking positionings, slide calliper rule 43 are slidedly arranged in the draw-in groove on slide calliper rule orienting sleeve 41, by slide calliper rule orienting sleeve 41 and slide calliper rule 43, can measure intuitively mobile displacement, and guarantee the accuracy of measured value.
In the present embodiment, device for measuring force 5 is provided with cone tank 51 with one end that retractable driving device 2 is joined, retractable driving device 2 is provided with taper projection 21 with one end that device for measuring force 5 joins, cone tank 51 and the 21 concentric settings of taper projection, and central axis is parallel with guide rail 6, the tapering of taper projection 21 is greater than the tapering of cone tank 51, by coordinating of cone tank 51 and taper projection 21, can prevent device for measuring force 5 diameter run-outs, make device for measuring force 5 moving directions consistent with loading direction, its acting force bearing is all along test vehicle longitudinal direction, the accuracy that guarantee effect power is measured.
Below in conjunction with commercial-vehicle cab back wall strength test process, principle of work of the present invention is elaborated.
Test vehicle 7 is parked in to the test site of level ground.Before test, the car door of test vehicle 7 pilothouses should be closed but locking not.Test vehicle 7 should be pulled on hand braking, gearing in, and with voussoir wedging front-wheel, to guarantee that test vehicle 7 is without significantly mobile in test.Test unit of the present invention is placed on the vehicle frame of test vehicle 7, at the installing plate 11 of mounting bracket assembly 1 and the link position place of longitudinal beam, if steel plate pad 15, according to the width of test vehicle 7 vehicle frames, adopt the steel plate pad 15 of suitable thickness, simultaneously, select the mounting hole of suitable height on installing plate 11, control the loading rigid plate 31 of rigidity load maintainer 3 and the height of the collision surface of contact of cabin rear wall with this, guaranteeing to load rigid plate 31 is applied at least on cabin rear wall more than vehicle frame, and be not less than whole cabin rear wall size, load the contact position of rigid plate 31 and cabin rear wall along test vehicle 7 longitudinal direction adjustment, whole loading rigid plate 31 is just in time come in contact with cabin rear wall.
After installation, start whole testing ground to make a video recording, use high-speed camera instrument to carry out comprehensive photography to loading rigid plate 31 with cabin rear wall, to record whole collision process.Adjustment sensor, collecting device and high-speed camera instrument enter and record standby condition, and record initial position by displacement measuring device 4, and safety inspection is carried out in testing ground.Pilot command countdown, each acquisition system starts collecting work, and simultaneous retractable drive unit 2 starts, and under the effect of two guide rails 6, rigidity load maintainer 3 pushes cabin rear wall with stable loading velocity along the longitudinal direction of test vehicle 7.In this test, cabin rear wall is set the static load of bearing dead weight 2000N per ton, when the amount of force that device for measuring force 5 is measured reaches assumed (specified) load (2000N is multiplied by dead weight), retractable driving device 2 quits work, rigidity load maintainer 3 stops loading, measure displacement now with displacement measuring device 4 simultaneously, the data that gather according to device for measuring force 5 and displacement measuring device 4 and the record of high-speed camera instrument, the curve of the deformation of test vehicle pilothouse and pilothouse carrying acting force and conquassation displacement when analytical test, test findings is evaluated, complete test report, off-test.
Above-mentioned is preferred embodiment of the present invention, not the present invention is done to any pro forma restriction.Although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention.Any those of ordinary skill in the art, in the situation that not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (10)
1. a commercial-vehicle cab back wall strength test device, it is characterized in that: comprise mounting bracket assembly (1), retractable driving device (2), rigidity load maintainer (3), displacement measuring device (4) and device for measuring force (5), described mounting bracket assembly (1) is provided with the guide rail (6) that pair of parallel is arranged, described pair of guide rails (6) is along longitudinal direction of car setting, described rigidity load maintainer (3) is slidedly arranged in pair of guide rails (6), described retractable driving device (2) is fixed on mounting bracket assembly (1), the output terminal of retractable driving device (2) is connected with described rigidity load maintainer (3) by device for measuring force (5), described displacement measuring device (4) is installed on described guide rail (6).
2. commercial-vehicle cab back wall strength test device according to claim 1, it is characterized in that: described mounting bracket assembly (1) comprises bracket base (12), drive bearing (13) and a pair of installing plate (11), described a pair of installing plate (11) is installed in described bracket base (12) below, described driving bearing (13) is installed on bracket base (12), described retractable driving device (2) is installed in and drives on bearing (13), described bracket base (12) both sides are equipped with guide supporting bar (14), described guide supporting bar (14) lower end is connected with bracket base (12), upper end is connected with the guide rail (6) of homonymy.
3. commercial-vehicle cab back wall strength test device according to claim 2, it is characterized in that: described installing plate (11) is provided with many row's securing member mounting holes, described a pair of installing plate (11) inner side is provided with the steel plate pad (15) for adjusting assemblage gap, between described guide rail (6) and described driving bearing (13), is connected with stiffener (16).
4. according to the commercial-vehicle cab back wall strength test device described in any one in claims 1 to 3, it is characterized in that: described rigidity load maintainer (3) comprises loading rigid plate (31), Connection Block (32), sliding sleeve (35) and many stable connection bars (33), described loading rigid plate (31) front is the plane perpendicular to longitudinal direction of car, load rigid plate (31) back side and be provided with reinforcement (34), described Connection Block (32) one end is connected with the back side of described loading rigid plate (31), the other end is connected with described device for measuring force (5), described sliding sleeve (35) is sheathed on described guide rail (6), between sliding sleeve (35) and loading rigid plate (31), load between rigid plate (31) and Connection Block (32) and be all connected by described stable connection bar (33) between sliding sleeve (35) and Connection Block (32).
5. according to the commercial-vehicle cab back wall strength test device described in any one in claims 1 to 3, it is characterized in that: described displacement measuring device (4) comprises slide calliper rule orienting sleeve (41), slide calliper rule guide pole (42), slide calliper rule (43) and clamping screw (44), described slide calliper rule guide pole (42) and slide calliper rule (43) are parallel to guide rail (6) setting, it is other that described slide calliper rule guide pole (42) is fixed on guide rail (6), described slide calliper rule orienting sleeve (41) is slidedly arranged on slide calliper rule guide pole (42), and by described clamping screw (44) locking positioning, described slide calliper rule (43) are slidedly arranged in the draw-in groove on described slide calliper rule orienting sleeve (41).
6. commercial-vehicle cab back wall strength test device according to claim 4, it is characterized in that: described displacement measuring device (4) comprises slide calliper rule orienting sleeve (41), slide calliper rule guide pole (42), slide calliper rule (43) and clamping screw (44), described slide calliper rule guide pole (42) and slide calliper rule (43) are parallel to guide rail (6) setting, it is other that described slide calliper rule guide pole (42) is fixed on guide rail (6), described slide calliper rule orienting sleeve (41) is slidedly arranged on slide calliper rule guide pole (42), and by described clamping screw (44) locking positioning, described slide calliper rule (43) are slidedly arranged in the draw-in groove on described slide calliper rule orienting sleeve (41).
7. according to the commercial-vehicle cab back wall strength test device described in any one in claims 1 to 3, it is characterized in that: described device for measuring force (5) is provided with cone tank (51) with one end that described retractable driving device (2) is joined, described retractable driving device (2) is provided with taper projection (21) with one end that device for measuring force (5) joins, described cone tank (51) and taper projection (21) concentric setting, and central axis is parallel with guide rail (6), the tapering of described taper projection (21) is greater than the tapering of cone tank (51).
8. commercial-vehicle cab back wall strength test device according to claim 6, it is characterized in that: described device for measuring force (5) is provided with cone tank (51) with one end that described retractable driving device (2) is joined, described retractable driving device (2) is provided with taper projection (21) with one end that device for measuring force (5) joins, described cone tank (51) and taper projection (21) concentric setting, and central axis is parallel with guide rail (6), the tapering of described taper projection (21) is greater than the tapering of cone tank (51).
9. according to the commercial-vehicle cab back wall strength test device described in any one in claims 1 to 3, it is characterized in that: the flexible loading axis of described retractable driving device (2) and the axis of described guide rail (6) are on same surface level.
10. commercial-vehicle cab back wall strength test device according to claim 8, is characterized in that: the flexible loading axis of described retractable driving device (2) and the axis of described guide rail (6) are on same surface level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210087657.7A CN102620940B (en) | 2012-03-29 | 2012-03-29 | Rear wall strength test device for driving cabs of commercial vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210087657.7A CN102620940B (en) | 2012-03-29 | 2012-03-29 | Rear wall strength test device for driving cabs of commercial vehicles |
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| Publication Number | Publication Date |
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| CN102620940A CN102620940A (en) | 2012-08-01 |
| CN102620940B true CN102620940B (en) | 2014-05-14 |
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| CN201210087657.7A Expired - Fee Related CN102620940B (en) | 2012-03-29 | 2012-03-29 | Rear wall strength test device for driving cabs of commercial vehicles |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103406851A (en) * | 2013-08-06 | 2013-11-27 | 无锡新宏泰电器科技股份有限公司 | Fixing device for motor torsion tests |
| CN107727386A (en) * | 2017-11-17 | 2018-02-23 | 洛阳西苑车辆与动力检验所有限公司 | Safety unit of tractor testing stand and its test method |
| CN109632329A (en) * | 2018-12-07 | 2019-04-16 | 中国汽车技术研究中心有限公司 | A kind of real vehicle platform rollover test method based on 23 degree of angles |
| CN113432891B (en) * | 2021-06-29 | 2023-03-21 | 江铃汽车股份有限公司 | Device and method for testing static bending rigidity of cab of flat-head truck |
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