CN209485699U - Adapt to the roller of winter tire braking forces measuring - Google Patents
Adapt to the roller of winter tire braking forces measuring Download PDFInfo
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- CN209485699U CN209485699U CN201821969438.0U CN201821969438U CN209485699U CN 209485699 U CN209485699 U CN 209485699U CN 201821969438 U CN201821969438 U CN 201821969438U CN 209485699 U CN209485699 U CN 209485699U
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- barrel
- salient point
- winter tire
- convex block
- height
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Abstract
The utility model discloses the rollers for adapting to winter tire braking forces measuring, and including having cylindrical barrel, the left side and right side of the barrel are fixed with roller shaft, and the central axis of roller shaft is overlapped with the central axis of barrel；The outer peripheral surface annular of the barrel be laid with it is multiple there is wavy convex block, the convex block extends to the right side of barrel from the left side of barrel；Salient point space is equipped between convex block described in every two, each salient point is spatially equipped with the consistent salient point of multiple height, and all salient points are each provided on the outer peripheral surface of the barrel, and the height of the salient point is higher than the height of the convex block.The convex block is primarily to increase the coefficient of friction of barrel, the salient point is other than increasing the coefficient of friction of barrel, it can also be embedded into the groove of winter tire, better contact with winter tire with barrel, reduce the number that winter tire skids on barrel.
Description
Technical field
The utility model relates to automobile detection fields, in particular to adapt to the roller of winter tire braking forces measuring.
Background technique
Winter tire is used exclusively for a kind of tire under winter conditions or under the conditions of temperature is lower than 7 DEG C.Winter tire with it is general
The difference of logical tire is: structurally, the ratio as shared by surface of tyre groove is higher, drainage performance is better, because
The groove number of this winter tire wants much more relative to the groove number of conventional tyre, and the trench depth of winter tire also compares ordinary wheel
The trench depth of tire is deep；From material, the material of winter tire is softer than the material of conventional tyre, this is because winter tire is adopted
With some special formulas, to generate the frictional force bigger than conventional tyre, winter tire can still be protected under cryogenic
Softer quality is held, and conventional tyre can then be hardened with the reduction of temperature.So in low cold area, before winter approached,
Many car owners can help the automobile of oneself to replace with winter tire.
Existing detection line is generally roller counter-force type automobile brake inspection bench to the equipment of Automobile Braking Force Detecting, the inspection
The roller overwhelming majority tested on platform is to be stained with sand roller, and the common coefficient of friction for being stained with sand roller is 0.7 hereinafter, if being rolled using sand is stained with
Cylinder goes detection to be assembled with brake force of the automobile of winter tire at sleet ground, since remaining has sleet on the winter tire of automobile,
The surface for being stained with sand roller is bedewed by winter tire at this time, and coefficient of friction can be down to 0.5 hereinafter, therefore in the detection process
It will appear the situation of winter tire skidding.There is above-mentioned condition, is because the groove number and trench depth of winter tire are than general
Lead to the mostly and deep of tire, being stained with sand roller cannot be contacted with winter tire well, and be stained with the friction of sand roller at this time
Coefficient is lower, the situation skidded so as to cause winter tire.For above-mentioned condition, using the drum reaction type automobile system for being stained with sand roller
Dynamic check-out console is difficult to detect brake force of the automobile winter tire at sleet ground.
Utility model content
Technical problem to be solved by the utility model is: providing the roller for adapting to winter tire braking forces measuring, which can
To be well adapted for wet and slippery winter tire, the number that winter tire skids on roller is reduced.
The solution that the utility model solves its technical problem is:
The roller for adapting to winter tire braking forces measuring, including having cylindrical barrel, the left side of the barrel
It is fixed with roller shaft with right side, the central axis of roller shaft is overlapped with the central axis of barrel；The roller
The outer peripheral surface annular of body be laid with it is multiple there is wavy convex block, the convex block extends to barrel from the left side of barrel
Right side；Salient point space is equipped between convex block described in every two, each salient point is spatially equipped with multiple height one
The salient point of cause, all salient points are each provided on the outer peripheral surface of the barrel, and the height of the salient point is higher than the height of the convex block
Degree.
As a further improvement of the above technical scheme, the height of the convex block is 3mm~6mm.
As a further improvement of the above technical scheme, the height of the salient point is 5mm~10mm.
As a further improvement of the above technical scheme, the salient point is cylinder, the diameter of the salient point be 6mm~
10mm。
As a further improvement of the above technical scheme, the multiple salient points of each salient point spatially are arranged in square
Battle array, the matrix are equipped at least two rows.
Further improvement as above-mentioned technical proposal, the length of the matrix be the length of barrel 95%~
98%.
The spacing distance of further improvement as above-mentioned technical proposal, two salient points adjacent positioned at same a line is
20mm~30mm.
The spacing distance of further improvement as above-mentioned technical proposal, two salient points adjacent positioned at same row is
15mm~25mm.
As a further improvement of the above technical scheme, the convex block and salient point are made of iron or steel.
The beneficial effects of the utility model are: due to barrel be equipped with multiple wavy convex blocks, every two convex block it
Between be additionally provided with multiple salient points, the convex block primarily to increase barrel coefficient of friction, the salient point in addition to increase roller
It outside the coefficient of friction of body, can also be embedded into the groove of winter tire, better contact with winter tire with barrel, reduce winter
The number that tire skids on barrel.The utility model is used for the Vehicles Brake Test Bench of winter tire.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the stereoscopic schematic diagram of the utility model embodiment；
Fig. 2 is the right view of the utility model embodiment.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific implementation feelings
Condition, by adding or reducing connection auxiliary, Lai Zucheng more preferably connection structure.Each technical characteristic in the utility model,
It can be with combination of interactions under the premise of not conflicting conflict.Finally, it should be noted that as term in text " center, it is upper and lower, left,
It is right, vertical, horizontal, inside and outside " etc. the orientation or positional relationships of instructions be then to be based on the orientation or positional relationship shown in the drawings, only
It is the utility model and simplified description for ease of description, rather than the device or element of indication or suggestion meaning must have spy
Fixed orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Figures 1 and 2, this is the embodiments of the present invention, specifically:
The roller for adapting to winter tire braking forces measuring, including having cylindrical barrel 100, the left side of the barrel
Face and right side are fixed with roller shaft 110, and the central axis of roller shaft is overlapped with the central axis of barrel, described
Roller shaft is fixed on the bearing of brake platform rack, and the utility model is rotated in brake platform rack.Institute
State barrel outer peripheral surface annular be laid with it is multiple there is wavy convex block 120, the convex block prolongs from the left side of barrel
The right side of barrel is extended to, it is the coefficient of friction in order to increase barrel that the convex block, which is set as waveform,；The convex block
Quantity is 8~20, and the quantity of the convex block is arranged more, and the coefficient of friction of barrel is also higher, but manufacturing cost is also got over
Height, the number of slugs of the utility model are preferably 12.Salient point space 130, Mei Gesuo is equipped between convex block described in every two
It states salient point and is spatially equipped with the consistent salient point 140 of multiple height, the salient point is cylinder, and all salient points are each provided at described
On the outer peripheral surface of barrel；In the groove for needing to be embedded into winter tire due to the salient point, the height of the salient point is higher than
The height of the convex block.The convex block and salient point are made of iron or steel, and the convex block and salient point are by welding
It is fixed on the outer peripheral surface of the barrel；It is large number of due to convex block in the utility model and salient point, in order to guarantee to weld
Quality improves welding efficiency, and the convex block and salient point pass through manipulator and be welded on the outer peripheral surface of the barrel.
Using the above structure, the utility model has the beneficial effects that the convex block is primarily to increase the friction of barrel
Coefficient, the salient point in addition to increase barrel coefficient of friction other than, can also be embedded into the groove of winter tire, make winter tire with
Barrel better contacts with, and reduces the number that winter tire skids on barrel.The utility model is used for the vapour of winter tire
Vehicle brake test bench.
As shown in Fig. 2, the height of the convex block is 3mm~6mm, the height of the salient point is 5mm~10mm.Smooth
Multiple convex blocks that height is 3mm, 4mm, 6mm are respectively equipped on barrel, mutually level multiple convex blocks are mutual
Every setting, market price is used to be tested respectively for 500 yuan or so of bridgestone 195/65R15 91S XG02 winter tire using not
The average friction coefficient of barrel when level convex block, obtains table 1.
Table 1:
As shown in Table 1, the average friction coefficient highest of barrel when the height of convex block is 6mm, when the height of convex block is 3mm
The average friction coefficient of barrel is minimum, and the average friction coefficient of barrel falls between when the height of convex block is 4mm, but
Since the height of the salient point needs the height than the convex block high, and the height of the salient point is 5mm~10mm, except this it
Outside, the convex block is arranged higher, and the weight of barrel is heavier, and the torque of driving barrel rotation is also bigger, therefore this is practical
The highly preferred of novel convex block is 4mm.
Multiple salient points that height is 5mm, 6mm, 8mm, 10mm, different height are respectively equipped on smooth barrel
Multiple salient points respectively occupy the outer peripheral surface part of the barrel, tested respectively using above-mentioned winter tire using different height
The average friction coefficient of barrel when the salient point of degree, obtains table 2.
Table 2:
As shown in Table 2, the average friction coefficient highest of barrel when the height of salient point is 10mm, the height of salient point are 5mm
When barrel average friction coefficient it is minimum, average friction coefficient time low, the height of salient point of barrel when the height of salient point is 6mm
The average friction coefficient time of barrel is high when degree is 8mm, the numerical value both when due to the height of salient point being respectively 10mm and 8mm
It is closer to, and the excessive height of salient point can cause certain damage, therefore the height of the utility model salient point to winter tire
Preferably 8mm.
As shown in Figure 1, the multiple salient points of each salient point spatially are arranged in matrix, the matrix is equipped at least two
Row, the length of the matrix are the 95%~98% of the length of barrel.The line number of the matrix depends on the salient point space
Width, that is, depend on the quantity of the convex block, since the number of slugs of the utility model is preferably 12, this is practical new
The matrix line number of type is preferably three rows.Since the left and right ends of the barrel do not contact generally with winter tire, the square
The length of battle array does not need isometric with the length of the barrel, and the matrix length of the utility model is preferably the length of barrel
95%.
Be further used as preferred embodiment, the spacing distance of two salient point adjacent positioned at same a line be 20mm~
30mm, the spacing distance of two salient point adjacent positioned at same row are 15mm~25mm.The diameter of the salient point be 6mm~
10mm, the groove width of winter tire is typically between 6mm~20mm on the market, but the diameter for working as the salient point is smaller, this reality
Higher with novel manufacturing cost, by comprehensively considering, the diameter of the salient point of the utility model is preferably 8mm.With the square of 3X10
Based on the salient point that battle array and diameter are 8mm, scheme 1 are as follows: the spacing distance of two salient point adjacent positioned at same a line is 20mm, position
It is 15mm in the spacing distance of two adjacent salient points of same row, the averag density of salient point is at this timeA/cm2；Scheme 2 are as follows:
The spacing distance of two salient point adjacent positioned at same a line is 30mm, and the spacing distance of two salient points adjacent positioned at same row is
25mm, at this time the averag density of salient point beA/cm2；Scheme 3 are as follows: the spacing distance of two salient point adjacent positioned at same a line
For 25mm, the spacing distance of two salient point adjacent positioned at same row is 20mm, and the averag density of salient point is at this timeA/cm2。
The averag density of above scheme 1, scheme 2,3 bumps of scheme is separately on three barrels, three rollings
The height of cylinder upper protruding block and the height of salient point choose the preferred value of Tables 1 and 2, are tested respectively using above-mentioned winter tire wet
Skidding number of the sliding winter tire on each barrel, obtains table 3.
Table 3:
As shown in Table 1, the anti-slip effect of scheme 1 is best, and the anti-slip effect of scheme 2 is worst, the anti-slip effect of scheme 3
Its cost is far longer than using scheme 3 or scheme fruit between scheme 1 and scheme 2, but using the barrel of the manufacture of scheme 1
2 manufacture barrels, due to winter tire in scheme 3 skidding number still within the acceptable range, the utility model is excellent
Barrel is first manufactured using scheme 3.
It is further used as preferred embodiment, continues test using above-mentioned winter tire and uses above-mentioned all preferred value systems
The barrel made, the average friction coefficient of barrel is 0.82 when tire is dry in winter, and barrel is flat when tire is wet and slippery in winter
Equal coefficient of friction is 0.64.Although wet and slippery winter tire is there are still skidding, relative to existing after the utility model
There is technology, automobile winter tire also can relatively accurately be measured using the roller counter-force type automobile brake inspection bench of the utility model and existed
Brake force when sleet ground can be promoted in industry.
The better embodiment of the utility model is illustrated above, but the utility model be not limited to it is described
Embodiment, those skilled in the art can also make a variety of equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (9)
1. adapting to the roller of winter tire braking forces measuring, it is characterised in that: described including having cylindrical barrel (100)
The left side and right side of barrel (100) are fixed with roller shaft (110), the central axis of roller shaft (110) with
The central axis of barrel (100) is overlapped；The outer peripheral surface annular of the barrel (100) is laid with multiple with wavy convex
Block (120), the convex block (120) extend to the right side of barrel (100) from the left side of barrel (100)；Every two institute
It states and is equipped between convex block (120) salient point space (130), it is consistent to be equipped with multiple height on each salient point space (130)
Salient point (140), all salient points (140) are each provided on the outer peripheral surface of the barrel (100), the height of the salient point (140)
Degree is higher than the height of the convex block (120).
2. the roller according to claim 1 for adapting to winter tire braking forces measuring, it is characterised in that: the convex block (120)
Height be 3mm~6mm.
3. the roller according to claim 1 for adapting to winter tire braking forces measuring, it is characterised in that: the salient point (140)
Height be 5mm~10mm.
4. the roller according to claim 1 for adapting to winter tire braking forces measuring, it is characterised in that: the salient point (140)
For cylinder, the diameter of the salient point (140) is 6mm~10mm.
5. the roller according to claim 1 for adapting to winter tire braking forces measuring, it is characterised in that: each salient point is empty
Between multiple salient points (140) on (130) be arranged in matrix, the matrix is equipped at least two rows.
6. the roller according to claim 5 for adapting to winter tire braking forces measuring, it is characterised in that: the length of the matrix
It is the 95%~98% of the length of barrel (100).
7. the roller according to claim 2 for adapting to winter tire braking forces measuring, it is characterised in that: be located at adjacent with a line
Two salient points (140) spacing distance be 20mm~30mm.
8. the roller according to claim 2 for adapting to winter tire braking forces measuring, it is characterised in that: it is adjacent to be located at same row
Two salient points (140) spacing distance be 15mm~25mm.
9. the roller according to claim 1 for adapting to winter tire braking forces measuring, it is characterised in that: the convex block (120)
It is made with salient point (140) of iron or steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821969438.0U CN209485699U (en) | 2018-11-27 | 2018-11-27 | Adapt to the roller of winter tire braking forces measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821969438.0U CN209485699U (en) | 2018-11-27 | 2018-11-27 | Adapt to the roller of winter tire braking forces measuring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209485699U true CN209485699U (en) | 2019-10-11 |
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ID=68117227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821969438.0U Active CN209485699U (en) | 2018-11-27 | 2018-11-27 | Adapt to the roller of winter tire braking forces measuring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209485699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4202399A1 (en) * | 2021-12-21 | 2023-06-28 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Method for surface processing of a component of a motor vehicle test stand and component of a motor vehicle test stand |
-
2018
- 2018-11-27 CN CN201821969438.0U patent/CN209485699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4202399A1 (en) * | 2021-12-21 | 2023-06-28 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Method for surface processing of a component of a motor vehicle test stand and component of a motor vehicle test stand |
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Address after: 528216 floor 8, building a, No. 28, Dongyang Third Road, Danzao Town, Nanhai District, Foshan City, Guangdong Province (residence declaration) Patentee after: Guangdong kangshibai Technology Co.,Ltd. Address before: 518000 Shenzhen, Guangdong, Nanshan District Xili street, Zhongshan Garden Road 1001, TCL international E city F1 building 100210031004 room. Patentee before: SHENZHEN COSBER INDUSTRIAL Co.,Ltd. |