CN202648974U - Fatigue test device for step frame - Google Patents
Fatigue test device for step frame Download PDFInfo
- Publication number
- CN202648974U CN202648974U CN 201220254717 CN201220254717U CN202648974U CN 202648974 U CN202648974 U CN 202648974U CN 201220254717 CN201220254717 CN 201220254717 CN 201220254717 U CN201220254717 U CN 201220254717U CN 202648974 U CN202648974 U CN 202648974U
- Authority
- CN
- China
- Prior art keywords
- base
- fatigue test
- rope
- mount pad
- marking time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a fatigue test device for a step frame. The device comprises a base, a tested means, a power means and a transmission means, wherein the tested means comprises a step plate, a step frame sequentially connected and a first mounting seat connected to the base; the power means is connected with the base; a telescopic rod is arranged on the power means; the transmission means comprises a supporting body, a pulley assembly, a loading rope and a loading component; the supporting body is connected to the base; the pulley assembly comprises a second fixed pulley mounted on the supporting body; the loading rope is wound around the second fixed pulley; a first end of the loading rope is connected with the loading component; a second end of the loading rope is connected with the telescopic rod; and the loading component is located above the step plate. The fatigue test is carried out on the step frame in a way of applying pressure on the step plate by the loading component; and during the whole test process, the pressure the step frame bears is comparatively stable.
Description
Technical field
The utility model relates to a kind of test unit, particularly a kind of stent fatigue test unit of marking time.
Background technology
For heavy truck, because pilothouse is higher, two to three grades of step plates can be set usually, step plate supports by the support that extends out from vehicle frame.The process that the staff gets on or off the bus certainly will be exerted pressure to step plate, and then the support of marking time is produced the bending stress of alternation, and the stent fatigue that causes marking time lost efficacy.
At present, usually adopt test apparatus of endurance of pedal shown in Figure 1 to carry out torture test to marking time.As can be seen from the figure, this test unit mainly comprises twin shaft double action type cylinder 2 ', cylinder mount pad 81 ', pedal 4 ' and pedal support 6 '.Wherein, twin shaft double action type cylinder 2 ' is installed on the cylinder mount pad 81 ', and pedal 4 ' is installed on the pedal support 6 ', and pedal 4 ' and pedal support 6 ' are two covers, are arranged in the both sides of twin shaft double action type cylinder 2 '.The push rod to-and-fro movement of twin shaft double action type cylinder 2 ' is constantly exerted pressure to the pedal 4 ' of its both sides, carries out torture test.
But there is following defective in this test unit: during test, this device changes cylinder to the acting force of pedal by regulating compressed-air actuated pressure, and compressed-air actuated air pressure is usually unstable, causes easily the fluctuation of acting force.
The utility model content
In view of this, the utility model proposes a kind of stent fatigue test unit of marking time, to solve in the existing test unit the larger problem of acting force fluctuation that cylinder applies step plate.
The utility model provides a kind of stent fatigue test unit of marking time, and comprising: base; Tested device comprises the step plate, mark time support and the first mount pad that connect successively, and wherein, the first mount pad is connected in base; Be connected in the propulsion system of base, propulsion system are provided with expansion link; Gearing comprises: pulley assembly, load rope, loading component and be connected in the supporter of base; Wherein, pulley assembly comprises the second fixed pulley that is connected in supporter; Load rope and walk around the second fixed pulley, the first end that loads rope is connected with loading component, and the second end that loads rope is connected with expansion link, and loading component is positioned at the top of step plate.
Further, pulley assembly also comprises the first fixed pulley that is connected in base, loads rope and walks around the first fixed pulley and the second fixed pulley, and the first end that loads rope is connected with loading component, and the second end that loads rope is connected with expansion link.
Further, load rope and be wire rope.
Further, supporter comprises two root posts that are connected in base and is connected to crossbeam between two root posts; And the second fixed pulley is connected on the crossbeam.
Further, be provided with connecting hole on column and the crossbeam, crossbeam is connected by the bolt that passes connecting hole with column.
Further, the stent fatigue of marking time test unit also comprises the second mount pad, and propulsion system are connected with base by the second mount pad.
Further, base is provided with T-shaped groove, and the T-shaped bolt on the first mount pad, column and the second mount pad is connected with T-shaped groove.
Further, base is provided with T-shaped groove, and the T-shaped bolt on the first mount pad, column or the second mount pad is connected with T-shaped groove.
Further, propulsion system are cylinder, hydraulic cylinder or servomotor.
Further, loading component is counterweight.
In the utility model, propulsion system are exerted pressure to step plate by being connected to the loading component that loads on the rope, and the suffered pressure of step plate is only relevant with the weight of loading component.During test, regulate the suffered pressure of step plate by the weight of regulating loading component, compare with the compressed-air actuated mode of existing adjusting, have preferably stability.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of existing test apparatus of endurance of pedal;
Fig. 2 is the mark time structural representation of stent fatigue test unit embodiment of the utility model.
Description of reference numerals:
1-base 11-T type groove 2-the second mount pad
41-support 42-step plate 43-the first mount pad of marking time
51-the first fixed pulley 52-the second fixed pulley 53-loads rope
54-supporter 55-the first fixed pulley mount pad 56-the second fixed pulley mount pad
57-loading component 541-column 542-crossbeam
7-propulsion system 71-expansion link
Embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment in the utility model can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Referring to Fig. 2, there is shown the mark time preferred embodiment of stent fatigue test unit of the utility model.As shown in the figure, the present embodiment tested device, propulsion system and the gearing that comprise at least base and be connected in base.
Wherein, tested device comprise step plate 42, mark time support 41 and the first mount pad 43.Wherein, the first mount pad 43 is fixedly connected on the base 1, and an end of the support 41 of marking time is fixedly connected with the first mount pad 43, the other end is fixedly connected with step plate 42, and, do not contact between step plate 42 and the base 1, make step plate 42 and the support 41 of marking time forms cantilever beam structures.During test, by the step plate 42 in this cantilever beam structure being exerted pressure to measure the anti-fatigue performance of support 41 of marking time.
Propulsion system 7 are the power source of this test unit, are connected on the base 1.Be provided with expansion link 71 on the propulsion system 7, expansion link 71 can stretch out propulsion system 7 or retraction propulsion system 7 under the effect of propulsion system.Expansion link 71 is connected with gearing, and the push-pull effort of propulsion system 7 acts on the step plate 42 by gearing.
During implementation, propulsion system 7 can be selected cylinder, hydraulic cylinder or servomotor etc.When selecting cylinder, the push rod on the cylinder is above-mentioned expansion link 71.In addition, propulsion system 7 can be installed on the base 1 by the second mount pad 2.
Continuation can find out that referring to Fig. 2 gearing further comprises supporter 54, pulley assembly, loading rope 53 and loading component 57.Wherein, supporter 54 is connected on the base 1.Pulley assembly comprises the second fixed pulley 52; And the second fixed pulley 52 is installed on the supporter 54 by the second pulley mount pad 56.Load rope 53 and walk around the second fixed pulley 52, its first end is connected with loading component 57, and the second end is connected with expansion link 71.Wherein, load rope 53 and can select wire rope.
In the present embodiment, propulsion system are mentioned the mode of putting down loading component step plate are exerted pressure by loading rope, and the suffered pressure of step plate is relevant with the weight of loading component.During test, can regulate the suffered pressure of step plate by the weight that changes loading component, compare with the compressed-air actuated mode of existing adjusting, have preferably stability.
In the present embodiment, pulley assembly in the gearing can further include the first fixed pulley 51, the first fixed pulley 51 is installed on the base 1 by the first pulley mount pad 55, load rope 53 and walk around the first fixed pulley 51 and the second fixed pulley 52, the first end that loads rope 53 is connected with loading component 57, and the second end that loads rope 53 is connected with expansion link 71.
The first fixed pulley and the second fixed pulley make the flexible direction of expansion link in the propulsion system and step plate be subjected to force direction in vertical state, and expansion link links to each other with the loading rope, and the suffered side force of expansion link greatly reduces, and has improved the serviceable life of propulsion system.
Referring to Fig. 2, in the present embodiment, supporter 54 may further include two root posts 541 that are connected in base 1 and crossbeam 542, the second fixed pulleys 52 that are connected between two root posts 541 are connected on the crossbeam 542.As can be seen from the figure, be provided with connecting hole on column 541 and the crossbeam 542, crossbeam 542 is connected by the bolt that passes connecting hole with column 541.And the connecting hole on the column 541 is a plurality of, and crossbeam 542 is by selecting different connecting holes to regulate distance between itself and the base 1.
For for convenience detach, the first mount pad 43, column 541 and the second mount pad 2 can be connected on the base 1 by T-shaped bolt.Particularly, be furnished with a plurality of T-slots that are parallel to each other 11 on the base 1, be provided with T-shaped bolt (not shown) in the bottom surface of the first mount pad 43, column 541 and the second mount pad 2, T-shaped bolt and T-shaped groove 11 clearance fit.
Need to prove: during implementation, the first mount pad 43, column 541 and the second mount pad 2 can select T-shaped bolt to be connected with base 1 simultaneously, also can one of them or two select T-shaped bolts to connect.
During implementation, loading component 57 can be selected weight, counterweight, sandbox etc.When the varying in weight of loading component 57, different to step plate 42 applied pressures, concrete weight can be selected according to the test needs.
The process of the test of present embodiment: expansion link 71 is retracted, and correspondingly, loads on the rope 53 and draws, and carries on the loading component 57, and at this moment, loading component 57 separates with step plate 42, and step plate 42 does not stress; Expansion link 71 stretches out, and correspondingly, loads rope 53 and transfers, and loading component 57 puts down, and at this moment, loading component 57 bump step plates 42 are exerted pressure to step plate 42; And so forth, the support 41 of marking time is carried out torture test.
In sum, the mode that the utility model is exerted pressure to step plate by loading component is carried out torture test to the support of marking time, and in whole experimentation, the pressure that the support of marking time bears is more stable.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. the stent fatigue test unit of marking time is characterized in that, comprising:
Base (1);
Tested device comprises the step plate (42), the support of marking time (41) and the first mount pad (43) that connect successively, and wherein, described the first mount pad (43) is connected in described base (1);
Be connected in the propulsion system (7) of described base (1), described propulsion system (7) are provided with expansion link (71);
Gearing comprises: pulley assembly, load rope (53), loading component (57) and be connected in the supporter (54) of described base (1); Wherein, described pulley assembly comprises the second fixed pulley (52) that is connected in described supporter (54); Described loading rope (53) is walked around described the second fixed pulley (52), the first end of described loading rope (53) is connected with described loading component (57), the second end of described loading rope (53) is connected with described expansion link (71), and described loading component (57) is positioned at the top of described step plate (42).
2. the stent fatigue test unit of marking time according to claim 1, it is characterized in that, described pulley assembly also comprises the first fixed pulley (51) that is connected in described base (1), described loading rope (53) is walked around described the first fixed pulley (51) and described the second fixed pulley (52), the first end of described loading rope (53) is connected with described loading component (57), and the second end of described loading rope (53) is connected with described expansion link (71).
3. the stent fatigue test unit of marking time according to claim 1 is characterized in that, described loading rope (53) is wire rope.
4. the stent fatigue test unit of marking time according to claim 1 is characterized in that, described supporter (54) comprises two root posts (541) that are connected in described base (1) and is connected to crossbeam (542) between two root posts (541); And described the second fixed pulley (52) is connected on the described crossbeam (542).
5. the stent fatigue test unit of marking time according to claim 4, it is characterized in that, be provided with connecting hole on described column (541) and the described crossbeam (542), described crossbeam (542) is connected by the bolt that passes described connecting hole with described column (541).
6. the stent fatigue test unit of marking time of stating according to claim 1 is characterized in that, also comprises the second mount pad (2), and described propulsion system (7) are connected with described base (1) by described the second mount pad (2).
7. the stent fatigue test unit of marking time according to claim 6, it is characterized in that, described base (1) is provided with T-shaped groove (11), and the T-shaped bolt on described the first mount pad (43), column (541) and the second mount pad (2) is connected with described T-shaped groove (11).
8. the stent fatigue test unit of marking time according to claim 6, it is characterized in that, described base (1) is provided with T-shaped groove (11), and the T-shaped bolt on described the first mount pad (43), described column (541) or described the second mount pad (2) is connected with described T-shaped groove (11).
9. each described stent fatigue test unit of marking time in 8 according to claim 1 is characterized in that described propulsion system (7) are cylinder, hydraulic cylinder or servomotor.
10. each described stent fatigue test unit of marking time in 8 according to claim 1 is characterized in that described loading component (57) is counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254717 CN202648974U (en) | 2012-05-31 | 2012-05-31 | Fatigue test device for step frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254717 CN202648974U (en) | 2012-05-31 | 2012-05-31 | Fatigue test device for step frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648974U true CN202648974U (en) | 2013-01-02 |
Family
ID=47418066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254717 Expired - Fee Related CN202648974U (en) | 2012-05-31 | 2012-05-31 | Fatigue test device for step frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202648974U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698110A (en) * | 2013-11-15 | 2014-04-02 | 芜湖普威技研有限公司 | Static strength test rack for pedal gear |
| CN106680083A (en) * | 2016-12-26 | 2017-05-17 | 中国电力科学研究院 | Testing device for treading fatigue of tension composite insulator |
| CN112362324A (en) * | 2020-10-30 | 2021-02-12 | 东风商用车有限公司 | Stepping durability test device for stepping shield and test method thereof |
-
2012
- 2012-05-31 CN CN 201220254717 patent/CN202648974U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698110A (en) * | 2013-11-15 | 2014-04-02 | 芜湖普威技研有限公司 | Static strength test rack for pedal gear |
| CN106680083A (en) * | 2016-12-26 | 2017-05-17 | 中国电力科学研究院 | Testing device for treading fatigue of tension composite insulator |
| CN112362324A (en) * | 2020-10-30 | 2021-02-12 | 东风商用车有限公司 | Stepping durability test device for stepping shield and test method thereof |
| CN112362324B (en) * | 2020-10-30 | 2023-01-24 | 东风商用车有限公司 | Stepping durability test device for stepping shield and test method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101708809B (en) | Reel frame system used for crane | |
| CN201574358U (en) | Walking type translation thruster | |
| CN103105303B (en) | End wall loading device for vehicle body strength test stand and method thereof | |
| CN202648974U (en) | Fatigue test device for step frame | |
| CN104163250B (en) | A kind of reliability test for undercarriage cabin door lock system | |
| CN103616294B (en) | Steel wheel rail force loading platform and steel wheel rail force loading method | |
| CN110205940A (en) | 0# block construction bracket and its reverse drawing preloading method | |
| CN113483978A (en) | Aircraft modal test free boundary simulation unit and simulation system | |
| CN204679286U (en) | A kind of automotive check drum apparatus and arrestment mechanism, brake mount | |
| CN102901647B (en) | Loader test platform | |
| CN102923100A (en) | Crane landing leg provided with caterpillar track traveling mechanism and wheel suspension traveling mechanism | |
| CN102826447B (en) | Truss jib crane as well as getting-off structure and position transferring method thereof | |
| CN101633464A (en) | Drag rope balancer for hanger | |
| CN215052151U (en) | Temporary supporting device for bridge construction | |
| CN202710333U (en) | Loading device of vehicle body strength test traction pin | |
| CN103523684A (en) | Hoisting coupling device with cooperation of multiple cranes and detection method | |
| CN204718821U (en) | Bogie of car test complex | |
| CN201010458Y (en) | Supporting leg bearing structure of locomotive crane | |
| CN111855427A (en) | Three-way loading test device for rail vehicle hinging device | |
| CN103551829A (en) | Crane jib assembling platform | |
| CN204752101U (en) | Elbow joint arm lifting devices of no power lock knock pin point | |
| CN104897422A (en) | Comprehensive car bogie test bed | |
| CN215893944U (en) | Aircraft modal test free boundary simulation unit and simulation system | |
| CN109629450A (en) | The assembled laterally linear Matching and modification device of steel box girder cantilever, system and method | |
| CN102874694B (en) | Hoisting crane and super lifting device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130502 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130502 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20140531 |