CN102305717A - Test bench for automobile climbing capacity and differential lock performance - Google Patents
Test bench for automobile climbing capacity and differential lock performance Download PDFInfo
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- CN102305717A CN102305717A CN201110144549A CN201110144549A CN102305717A CN 102305717 A CN102305717 A CN 102305717A CN 201110144549 A CN201110144549 A CN 201110144549A CN 201110144549 A CN201110144549 A CN 201110144549A CN 102305717 A CN102305717 A CN 102305717A
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Abstract
The invention relates to a test bench for automobile climbing capacity and differential lock performance. The test bench consists of an upslope bridge body, a middle bridge body and a downslope bridge body, wherein the upslope bridge body comprises a fixed part and an adjustable part; the adjustable part consists of a left approach bridge, a right approach bridge, a connecting sleeve and a lengthened board assembly; the left approach bridge comprises an approach bridge frame, a lengthened board hinged shaft, an approach bridge surface, an upright strut, an inclined strut, an outer guardrail, an inner guardrail and a connecting base; the right approach bridge and the left approach bridge are symmetrical, and a roller group mechanism is arranged between the right approach bridge and the left approach bridge; the connecting sleeve consists of two rectangular tubes with different models; and the two rectangular tubes are tightly connected through a bolt assembly piece. The test bench can test the performance of automobiles with different models by different types of connection of split type and adjustable truss structures, and prevents detection equipment from being repeatedly set.
Description
Technical field
The present invention relates to a kind of automotive test platform, be particularly useful for checking, belong to the automotive inspection equipment technical field the climbing capacity and the differential lock performance of automobile.
Background technology
Test to cross-country vehicle climbing capacity and differential lock performance is the essential items for inspection that the automaker car load dispatches from the factory, also at the row of the strong inspection project of national regulation.Because automobile is in the process of moving, receive the influence of abominable road surface situation through regular meeting, its climbing capacity be the decision automobile passability can key factor; In addition, the cross-country vehicle of four-wheel drive is when rugged travels down, and the intersecting axle phenomenon of going happens occasionally; At this moment, the adhesion that four tires receive is diverse, is that the wheel at a pair of diagonal angle is stuck under the ultimate limit state; And another wheel to the diagonal angle is unsettled fully, and in this case, can the performance of preceding/back axle differential lock be exactly the deciding factor that pass through; Through differential lock preceding/rear axle differential is locked; It is as a whole that two semiaxis rigidity are connected into, and the both sides wheel can obtain identical power like this, and just can make vehicle extricate oneself from a predicament this moment under the power effect of powerful driving.
At present; Being applied to the climbing capacity of cross-country vehicle and the equipment of differential lock performance test is integrally-built roller bridge Display Rack; Its defective is: 1, symmetrical pontic two parts are welded into as a wholely, only are applicable to that test is used to the vehicle of a certain particular wheel distance; 2, the upward slope angle is a certain value, only is applicable to the vehicle test of a certain specific approach angle is used; 3, roller set is fixedly mounted on the Display Rack, is unfavorable for maintenance, maintenance and the replacing in time of roller.
Summary of the invention
The object of the present invention is to provide a kind of automobile climbing capacity and differential lock performance test bed; It can be to the disadvantage of present cross-country vehicle climbing capacity and the existence of differential lock performance test apparatus; Through the connection of split type, adjustable truss-frame structure different types, realize test to different automobile types automobile climbing capacity and differential lock performance.
Problem according to the invention realizes with following technical proposals:
A kind of automobile climbing capacity and differential lock are performance test bed, comprise upward slope pontic, middle pontic and descending pontic in the formation; Said upward slope pontic comprises fixed part and variable partition; Said variable partition is made up of left side access bridge, right side access bridge, joint sleeve and lengthened plate assembly; Said left side access bridge comprises access bridge framework, lengthened plate jointed shaft, access bridge bridge floor, upright support, first diagonal brace, second diagonal brace, outer side rail, interior side rail and Connection Block; Said access bridge framework is fixedly connected to form by square type pipe, in its bottom surface, lower end the lengthened plate jointed shaft is installed; Said lengthened plate jointed shaft is a pipe; Said access bridge bridge floor is a checkered plate, and the upper end bending forms has contact with structure; Said upright support is a square type pipe, and two ends are provided with mounting hole respectively, through strengthening lining the mounting hole on the opposite flank is coupled together; Said first diagonal brace, second diagonal brace are the angle bar structure, and its upper end connects with the access bridge frame fixation, and the lower end is provided with connecting hole, is fixedly connected through bolt combination part and Connection Block; Side rail is that circular tube structure directly is fixedly connected with the interior side girder of access bridge framework in said; Said outer side rail is installed in the access bridge framework outside after being fixedly connected by square type pipe; Said Connection Block is the T-shape plate structure, arranges five connecting holes above; Said right side access bridge and left side access bridge symmetry; It is except that the element that comprises the left side access bridge; The position is provided with roller set mechanism therebetween; Said roller set mechanism comprises roller set and roller set framework, and said roller set framework is installed on the access bridge framework, and said roller set is installed in roller set framework the inside; Said joint sleeve is made up of the rectangular tube of two different models, on its sidewall, requires connecting hole is set according to test vehicle wheelspan, through the bolt combination part two rectangular tubes is fastenedly connected; Said lengthened plate assembly is the left-right symmetric structure; Form by lengthened plate, lengthened plate diagonal brace and lengthened plate Connection Block; Said lengthened plate upper end is provided with has contact with; Lengthened plate is equipped through having contact with the lengthened plate jointed shaft that is installed in access bridge framework lower end, is connected with the fixed part of lengthened plate Connection Block with the upward slope pontic through the lengthened plate diagonal brace.
Above-mentioned automobile climbing capacity and differential lock are performance test bed, and the fixed part of said upward slope pontic comprises the fixedly fixing access bridge in access bridge and right side of left side; Said left side fixedly access bridge and right side fixedly access bridge be symmetrical structure, form by firm banking, gusset support, roller set mechanism and access bridge jointed shaft respectively; Said firm banking is made up of two parallel longerons and some stulls; Said longeron is the rectangular tube structure; In its relative two sides six circular holes are set respectively, through strengthening lining the corresponding circular hole in both sides are coupled together, said stull is that rectangular tube is arranged between two longerons; Said gusset support is made up of two long upright supports of rectangular tube structure, two upright supports of weak point and two diagonal braces, and their lower ends are fixedly connected with firm banking, and the upper end is connected with the roller set frame fixation; The said roller set mechanism lower surface access bridge jointed shaft that is fixedly connected, said access bridge jointed shaft and upward slope pontic variable partition have contact with that structure is equipped to link together upward slope pontic fixed part and variable partition.
Above-mentioned automobile climbing capacity and differential lock are performance test bed, and said middle pontic is a truss-frame structure, are made up of pontic framework, middle pontic bridge floor and guardrail in the middle of said symmetric part includes symmetrical two parts and joint sleeve; The pontic framework is fixedly connected to form support body such as framework such as height such as grade by quarter bend and angle bar in the middle of said; Checkered plate that said middle pontic bridge floor is a specific thicknesses and frame fixation are together; Said guardrail and upward slope pontic guard bar structure same fixed are installed in the framework top, and joint sleeve partly links together left-right symmetric.
Above-mentioned automobile climbing capacity and differential lock are performance test bed, and said descending pontic is a truss-frame structure, are made up of symmetrical two parts and joint sleeve, and said symmetric part includes descending pontic framework, descending pontic bridge floor and guardrail; Said descending pontic framework is fixedly connected to form the slope frame support body by quarter bend and angle bar; Checkered plate that said descending pontic bridge floor is a specific thicknesses and frame fixation are together; Said guardrail and upward slope pontic guard bar structure same fixed are installed in the framework top, and joint sleeve partly links together left-right symmetric.
Above-mentioned automobile climbing capacity and differential lock are performance test bed, also comprise gusset in the formation; Said gusset comprises the outside plate of " U " type groove structure inner panel and " one " font structure, and gusset is combined into an integral body through the bolt combination part with upward slope pontic, middle pontic and descending pontic.
Above-mentioned automobile climbing capacity and differential lock are performance test bed, also comprise the idler wheel mechanism cover plate in the formation; Said idler wheel mechanism cover plate is a detachable block, and is equipped with the idler wheel mechanism framework.
The present invention improves existing integrally-built automobile climbing capacity and differential lock performance test apparatus, and the various regulatory functions realizations through upward slope pontic variable partition are to the checking apart from the vehicle climbing capacity of different approach angles and disalignment; Realize different wheelspan vehicles are passed through performance detection through the different link position of joint sleeve; Through gusset and bolt combination part together, be convenient to the transportation and the installation of equipment with the split textural association; Dismountable idler wheel mechanism is convenient to maintenance, maintenance and the replacing of each roller.In sum, structural design of the present invention, avoided checkout equipment repeat be provided with in, reduced the maintaining difficulty of equipment, thereby reduced the manufacturing cost of automobile product indirectly.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the front view of the utility model;
Fig. 3 is the vertical view of the utility model;
Fig. 4 is an I place enlarged drawing among Fig. 2;
Fig. 5 is a J place enlarged drawing among Fig. 2;
Fig. 6 is a upward slope pontic fixed part structural drawing;
Fig. 7 is a upward slope pontic variable partition structural drawing;
Fig. 8 is a K place structure enlarged drawing among Fig. 7;
Fig. 9 is the lengthened plate structural drawing of test board.
Each label is among the figure: 1, upward slope pontic, 1-1, access bridge framework, 1-2, access bridge bridge floor, 1-3, lengthened plate assembly, 1-4, idler wheel mechanism; 1-5, access bridge jointed shaft, 1-6, upright support, 1-7, first diagonal brace, 1-8, second diagonal brace, 1-9, Connection Block; 1-10, lengthened plate have contact with, 1-11, lengthened plate jointed shaft, 1-12, firm banking, 1-13, gusset support, 2, middle pontic; 2-1, middle pontic framework, 2-2, middle pontic bridge floor, 3, the descending pontic, 3-1, descending pontic framework, 3-2, descending pontic bridge floor; 4, joint sleeve, 5, outer side rail, 6, interior side rail, 7, gusset, 8, the idler wheel mechanism cover plate.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 7, the present invention comprises upward slope pontic 1, middle pontic 2 and descending pontic 3 in constituting.Said upward slope pontic comprises fixed part and variable partition.Said variable partition is made up of left side access bridge, right side access bridge, joint sleeve and lengthened plate assembly; Said left side access bridge comprises access bridge framework 1-1, lengthened plate jointed shaft 1-11, access bridge bridge floor 1-2, upright support 1-6, the first diagonal brace 1-7, the second diagonal brace 1-8, outer side rail 5, interior side rail 6 and Connection Block 1-9; Said access bridge framework 1-1 is fixedly connected to form by square type pipe, and lengthened plate jointed shaft 1-11 is installed in its bottom surface, lower end, and said lengthened plate jointed shaft 1-11 is a pipe; Said access bridge bridge floor 1-2 is the checkered plate of specific thicknesses, and the upper end bending forms has contact with structure; Said upright support 1-6 is a square type pipe, and two ends are provided with mounting hole respectively, through strengthening lining the mounting hole on the opposite flank is coupled together; The said first diagonal brace 1-7, the second diagonal brace 1-8 are angle bar, and its upper end is fixedly connected with access bridge framework 1-1, and the lower end is provided with connecting hole and is fixedly connected through bolt combination part and Connection Block 1-9; Side rail 6 directly is fixedly connected with the interior side girder of access bridge framework 1-1 for pipe in said; Said outer side rail 5 is installed in the access bridge framework 1-1 outside after being fixedly connected by square type pipe; Said Connection Block 1-9 is the T-shape plate structure, arranges five connecting holes above.Said right side access bridge and left side access bridge symmetry; It is except that the element that comprises the left side access bridge; The position is provided with the 1-4 of roller set mechanism therebetween; The said roller set 1-4 of mechanism comprises roller set and roller set framework, and said roller set framework is installed on the access bridge framework 1-1, and said roller set is installed in roller set framework the inside.Said joint sleeve 4 is made up of the rectangular tube of two different models, on its sidewall, requires connecting hole is set according to test vehicle wheelspan, through the bolt combination part two kinds of rectangular tubes is fastenedly connected.Said lengthened plate assembly 1-3 is the left-right symmetric structure; Form by lengthened plate, lengthened plate diagonal brace, interior outside guard rail and lengthened plate Connection Block; Said lengthened plate upper end is provided with has contact with 1-10; Lengthened plate is equipped with the lengthened plate jointed shaft 1-5 that is installed in access bridge framework 1-1 lower end through having contact with 1-10, is connected with the fixed part of lengthened plate Connection Block with the upward slope pontic through the lengthened plate diagonal brace.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6,, the fixed part of upward slope pontic of the present invention comprises the fixedly fixing access bridge in access bridge and right side of left side.Said left side fixedly access bridge and right side fixedly access bridge be symmetrical structure, form by firm banking 1-12, gusset support 1-13, the 1-4 of roller set mechanism and access bridge jointed shaft 1-5 respectively; Said firm banking 1-12 is made up of two parallel longerons and some stulls; Said longeron is a rectangular tube; In its relative two sides six circular holes are set respectively, through strengthening lining the corresponding circular hole in both sides are coupled together, said stull is that rectangular tube is arranged between two longerons; Said gusset support 1-13 is made up of two long upright supports of rectangular tube structure, two upright supports of weak point and two diagonal braces, and their lower ends are fixedly connected with firm banking 1-12, and the upper end is fixedly connected with roller set framework 1-4; The said roller set mechanism lower surface access bridge jointed shaft 1-5 that is fixedly connected, said access bridge jointed shaft 1-5 and upward slope pontic variable partition have contact with that structure is equipped to link together upward slope pontic fixed part and variable partition.
Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9, three kinds of vehicles that with the approach angle are 21o, 19o, 16o below respectively are that specific embodiment is explained a kind of automobile climbing capacity and the performance test bed course of work of differential lock:
Embodiment 1: the approach angle of automobile to be tested is 21o.
Regulate the link position of joint sleeve 4; Left and right sides pontic distance between center line is conformed to vehicle wheelspan to be tested; Making upward slope pontic 1 variable partition angle of inclination through the access bridge linkwork is 21o; Select the 6th (by order from left to right) connecting hole of firm banking 1-12; To found support 1-6 through the bolt combination part, Connection Block 1-9 and firm banking 1-12 couple together, and couple together through the 3rd connecting hole of bolt combination part with upward slope pontic 1 variable partition lower end and firm banking 1-12 again.Installation process finishes, and covers idler wheel mechanism cover plate 8, can begin to have detected the climbing capacity of tested test run; Unload the idler wheel mechanism cover plate, can carry out the test of differential lock performance.
Embodiment 2: the approach angle of automobile to be tested is 19o.
Regulate the link position of joint sleeve 4; Left and right sides pontic distance between center line is conformed to vehicle wheelspan to be tested; Making upward slope pontic 1 variable partition angle of inclination through the access bridge linkwork is 19o; The upright support 1-6 of choosing dress lengthening, the 5th (by order from left to right) connecting hole of selection firm banking 1-12 will found support 1-6 through the bolt combination part; Connection Block 1-9 and firm banking 1-12 couple together; It is equipped with the lengthened plate jointed shaft 1-11 that is installed in access bridge framework lower end to have contact with 1-10 through lengthened plate again, is connected through the 3rd connecting hole on the firm banking 1-12 of lengthened plate diagonal brace and upward slope pontic, is connected through second connecting hole on the firm banking 1-12 of lengthened plate Connection Block and upward slope pontic.Installation process finishes, and covers idler wheel mechanism cover plate 8, can begin to have detected the climbing capacity of tested test run; Unload the idler wheel mechanism cover plate, can carry out the test of differential lock performance.
Embodiment 3: the approach angle of automobile to be tested is 16o.
Regulate the link position of joint sleeve 4; Left and right sides pontic distance between center line is conformed to vehicle wheelspan to be tested; Making upward slope pontic 1 variable partition angle of inclination through the access bridge linkwork is 16o; The upright support 1-6 of choosing dress lengthening, the 4th (by order from left to right) connecting hole of selection firm banking 1-12 will found support 1-6 through the bolt combination part; Connection Block 1-9 and firm banking 1-12 couple together; It is equipped with the lengthened plate jointed shaft 1-11 that is installed in access bridge framework lower end to have contact with 1-10 through lengthened plate again, is connected through second connecting hole on the firm banking 1-12 of lengthened plate diagonal brace and upward slope pontic, is connected through first connecting hole on the firm banking 1-12 of lengthened plate Connection Block and upward slope pontic.Installation process finishes, and covers idler wheel mechanism cover plate 8, can begin to have detected the climbing capacity of tested test run; Unload the idler wheel mechanism cover plate, can carry out the test of differential lock performance.
The present invention is not only applicable to the test through performance of the cross-country vehicle of four-wheel drive, also be applicable to the automobile passability of two-wheel drive can test.
Claims (6)
1. automobile climbing capacity and differential lock are performance test bed, it is characterized in that, comprise upward slope pontic (1), middle pontic (2) and descending pontic (3) in the formation; Said upward slope pontic comprises fixed part and variable partition; Said variable partition is made up of left side access bridge, right side access bridge, joint sleeve and lengthened plate assembly; Said left side access bridge comprises access bridge framework (1-1), lengthened plate jointed shaft (1-11), access bridge bridge floor (1-2), upright support (1-6), first diagonal brace (1-7), second diagonal brace (1-8), outer side rail (5), interior side rail (6) and Connection Block (1-9); Said access bridge framework (1-1) is fixedly connected to form by square type pipe, in its bottom surface, lower end lengthened plate jointed shaft (1-11) is installed, and said lengthened plate jointed shaft (1-11) is a pipe; Said access bridge bridge floor (1-2) is a checkered plate, and the upper end bending forms has contact with structure; Said upright support (1-6) two ends are provided with mounting hole respectively, through lining the mounting hole on the opposite flank are coupled together; Said first diagonal brace (1-7), second diagonal brace (1-8) are angle bar, and its upper end is fixedly connected with access bridge framework (1-1), and the lower end is provided with connecting hole and is fixedly connected through bolt combination part and Connection Block (1-9); Said outer side rail (5) is installed in access bridge framework (1-1) outside after being fixedly connected by square type pipe; In said side rail (6) directly and the interior side girder of access bridge framework (1-1) be fixedly connected; Said Connection Block (1-9) is the T-shape plate structure, arranges connecting hole above; Said right side access bridge and left side access bridge symmetry, it is except that the element that comprises the left side access bridge, and the position is provided with roller set mechanism (1-4) therebetween; Said roller set mechanism (1-4) comprises roller set and roller set framework; Said roller set framework is installed on the access bridge framework (1-1), and said roller set is installed in roller set framework the inside; Said joint sleeve (4) requires connecting hole is set according to test vehicle wheelspan on its sidewall, through the bolt combination part two rectangular tubes is fastenedly connected; Said lengthened plate assembly (1-3) is the left-right symmetric structure; Form by lengthened plate, lengthened plate diagonal brace, interior outside guard rail and lengthened plate Connection Block; Said lengthened plate upper end is provided with has contact with (1-10); Lengthened plate is equipped with the lengthened plate jointed shaft (1-5) that is installed in access bridge framework (1-1) lower end through having contact with (1-10), is connected with the fixed part of lengthened plate Connection Block with the upward slope pontic through the lengthened plate diagonal brace.
2. automobile climbing capacity according to claim 1 and differential lock are performance test bed, it is characterized in that, the fixed part of said upward slope pontic comprises the fixedly fixing access bridge in access bridge and right side of left side; Said left side fixedly access bridge and right side fixedly access bridge be symmetrical structure, form by firm banking (1-12), gusset support (1-13), roller set mechanism (1-4) and access bridge jointed shaft (1-5) respectively; Said firm banking (1-12) is made up of two parallel longerons and some stulls; Said longeron is a rectangular tube; In its relative two sides six circular holes are set respectively, through strengthening lining the corresponding circular hole in both sides are coupled together, said stull is that rectangular tube is arranged between two longerons; Said gusset support (1-13) is made up of two long upright supports of rectangular tube structure, two upright supports of weak point and two diagonal braces, and their lower ends are fixedly connected with firm banking (1-12), and the upper end is fixedly connected with roller set framework (1-4); The said roller set mechanism lower surface access bridge jointed shaft (1-5) that is fixedly connected, said access bridge jointed shaft (1-5) and upward slope pontic variable partition to have contact with structure equipped.
3. automobile climbing capacity according to claim 2 and differential lock are performance test bed; It is characterized in that; Pontic (2) is a truss-frame structure in the middle of said; Form pontic framework (2-1), middle pontic bridge floor (2-2) and guardrail in the middle of said symmetric part includes by symmetrical two parts and joint sleeve (4); Pontic framework (2-1) is fixedly connected to form support body such as framework such as height such as grade by quarter bend and angle bar in the middle of said; Pontic bridge floor (2-2) is the checkered plate of specific thicknesses in the middle of said, and it and middle pontic framework (2-1) are fixed together; Pontic framework (2-1) top in the middle of said guardrail and upward slope pontic guard bar structure same fixed are installed in, joint sleeve (4) partly links together left-right symmetric.
4. performance test bed according to described automobile climbing capacity of claim 3 and differential lock; It is characterized in that; Said descending pontic (3) is a truss-frame structure; Be made up of symmetrical two parts and joint sleeve (4), said symmetric part includes descending pontic framework (3-1), descending pontic bridge floor (3-2) and guardrail; Said descending pontic framework (3-1) is fixedly connected to form the slope frame support body by quarter bend and angle bar; Said descending pontic bridge floor (3-2) is fixed together for the checkered plate of specific thicknesses and descending pontic framework (3-1); Said guardrail and upward slope pontic guard bar structure same fixed are installed in descending pontic framework (3-1) top, and joint sleeve (4) partly links together left-right symmetric.
5. automobile climbing capacity according to claim 4 and differential lock are performance test bed, it is characterized in that, also comprise gusset (7) in the formation; Said gusset (7) comprises the outside plate of " U " type groove structure inner panel and " one " font structure, and gusset (7) is combined into upward slope pontic (1), middle pontic (2) and descending pontic (3) as a whole through the bolt combination part.
6. automobile climbing capacity according to claim 5 and differential lock are performance test bed, it is characterized in that, also comprise idler wheel mechanism cover plate (8) in the formation; Said idler wheel mechanism cover plate (8) is a detachable block, and is equipped with the idler wheel mechanism framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144549 CN102305717B (en) | 2011-05-31 | 2011-05-31 | Test bench for automobile climbing capacity and differential lock performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144549 CN102305717B (en) | 2011-05-31 | 2011-05-31 | Test bench for automobile climbing capacity and differential lock performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102305717A true CN102305717A (en) | 2012-01-04 |
| CN102305717B CN102305717B (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110144549 Expired - Fee Related CN102305717B (en) | 2011-05-31 | 2011-05-31 | Test bench for automobile climbing capacity and differential lock performance |
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| Country | Link |
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| CN (1) | CN102305717B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592137A (en) * | 2013-11-25 | 2014-02-19 | 李腾飞 | Automobile climbing testing device |
| CN104019995A (en) * | 2014-05-19 | 2014-09-03 | 华南农业大学 | Miniature wheel-type transporter climbing testboard |
| CN104568456A (en) * | 2013-10-10 | 2015-04-29 | 北汽福田汽车股份有限公司 | Method and system for testing traction of limited slip differential |
| CN106441919A (en) * | 2015-08-05 | 2017-02-22 | 盐城朝煦机械设备有限公司 | Multifunctional vehicle performance testing device |
| CN110346275A (en) * | 2019-07-12 | 2019-10-18 | 成都中科大旗软件有限公司 | A kind of tourist attraction safety monitoring system |
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| CN201795926U (en) * | 2010-09-02 | 2011-04-13 | 上海三一科技有限公司 | Climbing testboard for heavy crawler crane |
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| CN2096061U (en) * | 1991-05-13 | 1992-02-12 | 河北省武安市交通安全设备厂 | Back force type shaft distance changing automobile brake test platform |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568456A (en) * | 2013-10-10 | 2015-04-29 | 北汽福田汽车股份有限公司 | Method and system for testing traction of limited slip differential |
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| CN106441919A (en) * | 2015-08-05 | 2017-02-22 | 盐城朝煦机械设备有限公司 | Multifunctional vehicle performance testing device |
| CN106441919B (en) * | 2015-08-05 | 2020-06-12 | 盐城朝煦机械设备有限公司 | Multifunctional vehicle performance testing device |
| CN110346275A (en) * | 2019-07-12 | 2019-10-18 | 成都中科大旗软件有限公司 | A kind of tourist attraction safety monitoring system |
| CN110346275B (en) * | 2019-07-12 | 2020-03-20 | 成都中科大旗软件有限公司 | Tourist attraction safety monitoring system |
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| Publication number | Publication date |
|---|---|
| CN102305717B (en) | 2013-06-12 |
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