CN205643127U - A way face friction coefficient test car testing wheel locking system - Google Patents
A way face friction coefficient test car testing wheel locking system Download PDFInfo
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- CN205643127U CN205643127U CN201620320814.8U CN201620320814U CN205643127U CN 205643127 U CN205643127 U CN 205643127U CN 201620320814 U CN201620320814 U CN 201620320814U CN 205643127 U CN205643127 U CN 205643127U
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- testing wheel
- friction coefficient
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- locking system
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Abstract
The utility model relates to a way face friction coefficient test car testing wheel locking system, including testing wheel, testing wheel installs at the output shaft end who measures the case, the hang piece of measurement case while with a perpendicular liftable links together, hang a fixed connection control hang the piston rod of the hydro -cylinder of piece lift, there is testing wheel self -lock device the one side of hanging the piece, testing wheel self -lock device is including being fixed in the bolt of hydro -cylinder tip, fixed mounting in hang on the piece can predetermine the elastic force and stop device will insert the clamping device that the bolt grasped. The utility model provides a hydraulic system break down and meet accident and lead to testing wheel mentioning the danger of dropping under the state.
Description
Technical field
This utility model belongs to face friction coefficient testing car technical field, is specifically related to a kind of face, road friction coefficient testing car testing wheel locking system.
Background technology
The main working parts of face, road friction coefficient testing car is PVvalue testing wheel.During duty, i.e. measuring arm during testing friction coefficient and PVvalue testing is taken turns the hydraulic cylinder being fixed on friction coefficient testing car chassis and compressed downwards, friction pulley produces the active force of 140kgf to ground.Measuring arm when at off position and friction pulley to be mentioned by hydraulic cylinder, friction pulley hoisting depth is 120mm.Measure wheel and keep constant on the height mentioned.When friction coefficient testing car off working state, when such as normally travelling on face, road, measure arm drive disk assembly not work, it is the most constant that PVvalue testing wheel mentions holding, mainly closed holding by the oil pocket of oil cylinder, namely by hydraulic control one-way valve closing oil path, the characteristic utilizing the compress variation of hydraulic oil the least realizes.Owing to being to realize testing wheel only by hydraulic pressure to mention holding the most constant, and when hydraulic system breaks down, then cannot ensure that testing wheel is mentioned.Therefore, occur unexpected (such as pipeline leakage) to cause testing wheel to drop under mentioning state to prevent hydraulic system from breaking down, even if hydraulic system occurs that situation also can guarantee that friction coefficient testing car measures arm when off position and friction testing takes turns the device that also will not fall down, tool is of great significance.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem and provides a kind of face, road friction coefficient testing car testing wheel locking system.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of face, road friction coefficient testing car testing wheel locking system, including testing wheel, described testing wheel is arranged on the output shaft end of measure case, described measure case liftable hanging block vertical with link together, described hanging block fixes the piston rod connecting the oil cylinder controlling the lifting of described hanging block, the side of described hanging block have testing wheel self-locking device, described testing wheel self-locking device include being fixed on described oil cylinder end latch, be fixedly installed in described hanging block can preset the clamping device that clamps of described latch that elastic force and stopping means will insert.
Described clamping device includes housing, the first elastic energy storage body, the second elastic energy storage body it is provided with in described housing, having between described first and second elastic energy storage body opposite face and be easy to the inverted trapezoidal mouth that described latch inserts, the relative wall of described inverted trapezoidal mouth has been sticked the first limiting plate, the second limiting plate.
Described first and second elastic energy storage body uses elastic energy storage silica gel, and described first limiting plate, the second limiting plate are installed by bearing pin respectively and be sticked on the wall of described inverted trapezoidal mouth.
What described stopping means included the groove being located at described lock bolt bar surface and described groove fit is located at described first limiting plate and the snap-fit engagement face on the second limiting plate surface.
The side of described housing has a lid.
Described latch is fixed on the cylinder ends of described oil cylinder by limiting plate and snap ring.
On the snap ring of the cylinder ends that described latch is welded on described oil cylinder.
Described clamping device is bolted fixing with described hanging block.
nullThis utility model by being arranged on the output shaft end of measure case at testing wheel，Described measure case also can the hanging block of vertical lift link together with one，Described hanging block fixes the piston rod connecting the oil cylinder controlling the lifting of described hanging block，There is testing wheel self-locking device the side of described hanging block，Described testing wheel self-locking device includes the latch being fixed on described oil cylinder end、Be fixedly installed in described hanging block can preset the clamping device that the described latch inserted is clamped by elastic force and stopping means，The clamping device that can utilize this self-locking device is coordinated by elastic force and stopping means with latch，Individually the most individually be fixedly clamped lifting heights residing in a non-operative state by described testing wheel and hanging block and measure case，Thus，Even if the oil circuit of hydraulic system breaks down，Also the height of testing wheel self-retaining will not be made to fall，Thus realize testing wheel and fix safer，Solve hydraulic system to break down and accident occurs and the danger that causes testing wheel to drop under mentioning state.
Accompanying drawing explanation
Face, the road friction coefficient testing car testing wheel locking system that Fig. 1 provides for this utility model embodiment schematic diagram in the locked state；
Face, the road friction coefficient testing car testing wheel locking system that Fig. 2 provides for this utility model embodiment schematic diagram in uncoupled condition；
Fig. 3 is connected schematic side view for the clamping device of face, the road friction coefficient testing car testing wheel locking system that this utility model embodiment provides with the installation of oil cylinder；
Fig. 4 is connected schematic front view for the clamping device of face, the road friction coefficient testing car testing wheel locking system that this utility model embodiment provides with the installation of oil cylinder.
Detailed description of the invention
Below, in conjunction with example, substantive distinguishing features of the present utility model and advantage are further described, but this utility model is not limited to listed embodiment.
See shown in Fig. 1～4, a kind of face, road friction coefficient testing car testing wheel locking system, including testing wheel 18, described testing wheel is arranged on the output shaft end of measure case 17, described measure case also can the hanging block 3 of vertical lift link together with one, the fixing piston rod 3 connecting the oil cylinder 1 controlling the lifting of described hanging block of described hanging block 3, there is testing wheel self-locking device the side of described hanging block 3, described testing wheel self-locking device includes the latch 9 being fixed on described oil cylinder end, be fixedly installed in described hanging block can preset the clamping device 2 that the described latch 9 being inserted is clamped by elastic force and stopping means.
See Fig. 3～4, implement, described clamping device includes housing 6, first elastic energy storage body the 7, second elastic energy storage body 11 it is provided with in described housing, having between described first and second elastic energy storage body opposite face and be easy to the inverted trapezoidal mouth 10 that described latch inserts, the relative wall of described inverted trapezoidal mouth has been sticked first limiting plate the 8, second limiting plate 12.
Wherein, described first and second elastic energy storage body can use elastic energy storage silica gel, and described first limiting plate, the second limiting plate are installed by corresponding bearing pin 13 respectively and be sticked on the wall of described inverted trapezoidal mouth 10.
In order to realize effective spacing clamping, wherein, described stopping means include the groove 14 being located at the pin rod surface of described latch 9 and coordinate with described groove 14 be located at described first limiting plate 8 and the snap-fit engagement face on the second limiting plate 12 surface.
nullImplement，Described groove can be the annular groove being opened on described lock bolt bar nearly plunger，Can also be the first groove and second groove in two snap-fit engagement faces that described first limiting plate and second are limited plate，The shape of cross section of described groove can be trapezoidal，Or other rectangle，Or it is semicircle，Preferably，Select dovetail groove，The snap-fit engagement mask on the first described limiting plate and the second limiting plate surface has consistent corresponding matching structure，As shown in Figure 4，Including a concave surface 15 coordinated with the conical head of latch 9 and coordinate with described groove 14 realize being connected the interior convex surface 16 of described concave surface 15 by transition arc，Described interior convex surface can head in described groove 14 under the effect of elastomer，Realize institute and described latch is compressed clamping，Therein，Described interior convex surface 16 has plane with the compression end that contacts of described groove 14.
Wherein, the side of described housing 6 has a lid 2.
Wherein, described latch 9 is fixed on the cylinder ends of described oil cylinder 1 by snap ring 4 and limiting plate 5, concrete, and described latch 9 is fixed on the end of oil cylinder by snap ring 4, limiting plate 5 position.
Wherein, on the snap ring of the cylinder ends that described latch is welded on described oil cylinder.
Described clamping device and described hanging block are bolted fixing shape all-in-one-piece structure, the piston rod of described hanging block and oil cylinder is fixing to be connected, the other end of described hanging block is hinged with measure case, the described measure case other end, with to be arranged on the support that rear overhang hangs up hinged, the output shaft end of described measurement arm installs described testing wheel.
When operating, cylinder piston rod is descending, and when oil cylinder is descending, power is 140kgf, and latch withdrawal force is 60kgf.Oil cylinder power be enough to latch to extract, and makes testing wheel enter duty under cylinder force.When work completes or during travel position, cylinder piston rod drives hanging block up, makes to move on the clamping device being arranged in hanging block.And the power that during upper shifting, latch inserts is 20kgf, the most easily latch is inserted under the active force of oil cylinder.In above work process, the insertion of latch and disengagement mainly rely on elastic energy storage body compressive deformation to realize.Owing to the weight of the measure case being connected with hanging block and PVvalue testing wheel is 20KG, and the power extracting latch is 60kgf.So can the guarantee testing wheel of machinery will not be fallen down in a non-operative state by testing wheel self-locking device, it is achieved that measure arm and the testing wheel double shield when off working state.
nullAbove technical scheme，Can be seen that，This utility model by being arranged on the output shaft end of measure case at testing wheel，Described measure case also can vertical liftable hanging block be connected together with one，Described hanging block fixes the piston rod connecting the oil cylinder controlling the lifting of described hanging block，There is testing wheel self-locking device the side of described hanging block，Described testing wheel self-locking device includes the latch being fixed on described oil cylinder end、Be fixedly installed in described hanging block can preset the clamping device that the described latch inserted is clamped by elastic force and stopping means，The clamping device that can utilize this self-locking device is coordinated by elastic force and stopping means with latch，Individually the most individually be fixedly clamped lifting heights residing in a non-operative state by described testing wheel and hanging block and measure case，Thus，Even if the oil circuit of hydraulic system breaks down，Also the height of testing wheel self-retaining will not be made to fall，Thus realize testing wheel and fix safer，Solve hydraulic system to break down and accident occurs and the danger that causes testing wheel to drop under mentioning state.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. face, road friction coefficient testing car testing wheel locking system, it is characterized in that, including testing wheel, described testing wheel is arranged on the output shaft end of measure case, described measure case liftable hanging block vertical with link together, described hanging block fixes the piston rod connecting the oil cylinder controlling the lifting of described hanging block, there is testing wheel self-locking device the side of described hanging block, described testing wheel self-locking device includes the latch being fixed on described oil cylinder end, be fixedly installed in described hanging block can preset the clamping device that the described latch inserted is clamped by elastic force and stopping means.
Face, road friction coefficient testing car testing wheel locking system the most according to claim 1, it is characterized in that, described clamping device includes housing, the first elastic energy storage body, the second elastic energy storage body it is provided with in described housing, having between described first and second elastic energy storage body opposite face and be easy to the inverted trapezoidal mouth that described latch inserts, the relative wall of described inverted trapezoidal mouth has been sticked the first limiting plate, the second limiting plate.
Face, road friction coefficient testing car testing wheel locking system the most according to claim 2, it is characterized in that, described first and second elastic energy storage body uses elastic energy storage silica gel, and described first limiting plate, the second limiting plate are installed by bearing pin respectively and be sticked on the wall of described inverted trapezoidal mouth.
4. according to friction coefficient testing car testing wheel locking system in face, road described in Claims 2 or 3, it is characterized in that, what described stopping means included the groove being located at described lock bolt bar surface and described groove fit is located at described first limiting plate and the snap-fit engagement face on the second limiting plate surface.
Face, road friction coefficient testing car testing wheel locking system the most according to claim 4, it is characterised in that the side of described housing has a lid.
Face, road friction coefficient testing car testing wheel locking system the most according to claim 5, it is characterised in that described latch is fixed on the cylinder ends of described oil cylinder by limiting plate and snap ring.
Face, road friction coefficient testing car testing wheel locking system the most according to claim 6, it is characterised in that on the snap ring of the cylinder ends that described latch is welded on described oil cylinder.
Face, road friction coefficient testing car testing wheel locking system the most according to claim 1, it is characterised in that described clamping device is bolted fixing with described hanging block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620320814.8U CN205643127U (en) | 2016-04-15 | 2016-04-15 | A way face friction coefficient test car testing wheel locking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620320814.8U CN205643127U (en) | 2016-04-15 | 2016-04-15 | A way face friction coefficient test car testing wheel locking system |
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| Publication Number | Publication Date |
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| CN205643127U true CN205643127U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620320814.8U Active CN205643127U (en) | 2016-04-15 | 2016-04-15 | A way face friction coefficient test car testing wheel locking system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229792A (en) * | 2020-10-15 | 2021-01-15 | 无锡柏鹏科技有限公司 | Rear axle assembly |
| CN112964632A (en) * | 2021-02-18 | 2021-06-15 | 无锡友鹏航空装备科技有限公司 | Device for improving ground clearance of road friction coefficient test vehicle |
-
2016
- 2016-04-15 CN CN201620320814.8U patent/CN205643127U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229792A (en) * | 2020-10-15 | 2021-01-15 | 无锡柏鹏科技有限公司 | Rear axle assembly |
| CN112229792B (en) * | 2020-10-15 | 2022-09-30 | 无锡柏鹏科技有限公司 | Rear axle assembly |
| CN112964632A (en) * | 2021-02-18 | 2021-06-15 | 无锡友鹏航空装备科技有限公司 | Device for improving ground clearance of road friction coefficient test vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180503 Address after: 300000 Tianjin Binhai New Area Airport Economic Zone two road 225, China Civil Aviation Science and technology industrialization base 1 workshop A2066 room Patentee after: TIANJIN XINLONG AIRPORT EQUIPMENT CO., LTD. Address before: 300300 Tianjin Binhai New Area Tianjin Free Trade Zone Airport Economic Zone West three road 166 A2-205 Patentee before: Tianjin Xinlong Airport Technology Co Ltd |
|
| TR01 | Transfer of patent right |