CN206132286U - Friction force measuring device of linear guide coaster - Google Patents
Friction force measuring device of linear guide coaster Download PDFInfo
- Publication number
- CN206132286U CN206132286U CN201620877904.7U CN201620877904U CN206132286U CN 206132286 U CN206132286 U CN 206132286U CN 201620877904 U CN201620877904 U CN 201620877904U CN 206132286 U CN206132286 U CN 206132286U
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- CN
- China
- Prior art keywords
- pulley
- rope
- hanging
- linear guide
- slider
- 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
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Abstract
The utility model discloses a friction force measuring device of linear guide coaster utilizes the pulley to compress tightly hanging the rope and driving and hang the rope and remove together, hanging the rope and receiving the pressure that comes from the pulley, hangs the rope and can form contained angle theta with the plumb line, hanging size that the rope received the horizontal component of the pressure that comes from the pulley for gsin theta, the control pulley moves along horizontal linear guide direction always, and when reach certain numerical value, the offset direction that the pouring weight will be followed to the slider is following motion, the clean offset of pouring weight when noting the slider and beginning to slide, obtain from this this moment hang the rope can with plumb line formation contained angle theta / to calculate hanging this moment the rope receive the horizontal component gsin theta of the pressure of pulley /, this power value matches with the frictional force value of slider. The utility model discloses the method is simple, can the rapid survey goes out the frictional force of slider between rather than the contact surface, and the measuring result precision is high, and measurement of efficiency is fast, is applicable to in the high accuracy field of hanging the frictional force of slider and measures.
Description
Technical field
The present invention relates to the fields of measurement of frictional force, in particular, more particularly to a kind of friction of line slideway coaster
Force measuring device.
Background technology
Frictional force refers to the power for hindering relative motion of object, the direction of frictional force and relative motion of object (or relative transport
Dynamic trend) it is in opposite direction；Frictional force is divided into three kinds of stiction, rolling friction and sliding friction, and an object is at another
When body surface occurs to slide, the friction for hindering their relative motioies, referred to as sliding friction between contact surface, are produced.Sliding friction
The size of power is relevant with the size and pressure size of the degree of roughness of contact surface, and pressure is bigger, and object contact surface is more coarse, produces
Force of sliding friction it is bigger.
Field is hung in ultraprecise, especially sun wing plate hanging field, the size of frictional force to the impact hung very
Big, the hanging of sun wing plate is typically with the mode of barycenter hanging, therefore, when its expansion motion is carried out, its suspension centre
Movement locus are not linear motions, but the circular arc track in a quarter is being moved, therefore, we are necessary
Sun wing plate is hung using two-dimentional erecting by overhang.Current suspending way is straight by hanging rope for the slide block of line slideway
Hanging is connect, but in the hanging of high-precision sun wing plate, the frictional force between line slideway and slide block can be to sun wing plate
Locus and motion produce the impact of additional forces.In order to eliminate the impact, we are firstly the need of the frictional force to slide block
Measure, only measure accurate friction value, it will largely facilitate and frictional force is eliminated using other means
Impact.
Existing friction measurement method is following several nothing more than：
The first, being dragged using weight beam needs the object for determining to do linear uniform motion, then show on ergometer
Numerical value, the as size of frictional force, but for slide block, traction measurement just can not easily be carried out to slide block, and
The friction value so measured is simultaneously unstable.
Second, the object for measuring is needed to do uniformly accelrated rectilinear motion in tow with the weight of constant gravity, using getting meter ready
When device measure acceleration, can solve the size for obtaining frictional force, such process needs measurement very accurate, and needs thing
Body has larger stroke, and this method is not suitable for the friction measurement of the slide block on line slideway.
The content of the invention
It is an object of the invention to it is not suitable for high-precision hanging field to solve existing friction measurement method
A kind of problem of the measurement of slide block frictional force, there is provided friction measurement device of line slideway coaster is straight for measuring level
The frictional force of line guide rail top shoe, and certainty of measurement is very high, it is adaptable to the friction measurement of slide block in high accuracy hanging field.
The present invention is achieved through the following technical solutions above-mentioned purpose：A kind of friction measurement side of line slideway coaster
Method, comprises the steps, will be fixed at the top of hanging rope first can along the slide block of horizontal linear slide, hanging rope
Bottom connection known load is the pouring weight of G, arranges pulley in the lower section of horizontal linear guide rail, with hanging rope under pulley original state
Press close to but do not compress hanging rope under hanging rope, i.e. original state to overlap with plumb line；Promote along horizontal linear guide rail direction again
One segment distance of pulley, pulley compress hanging rope and drive hanging rope to move together, and hanging rope receives the pressure from pulley, hanging
Rope can form angle theta with plumb line, and hanging rope is Gsin θ by the size of the horizontal component of the pressure from pulley；Control is slided
Wheel is moved always along horizontal linear guide rail direction, and when certain numerical value is reached, slide block will be followed along the offset direction of pouring weight
Motion, record sliding block start the net side-play amount of pouring weight during sliding, and the hanging rope thus obtained now can be formed with plumb line and be pressed from both sides
Angle θ ', so as to calculate the frictional force of the horizontal component Gsin θ ' that now hanging rope is subject to the pressure of pulley, the force value and slide block
Value is suitable, and the value of θ ' is calculated by the radiuscope of the length of hanging rope, the horizontal offset of pulley and pulley.
A kind of friction measurement device of line slideway coaster, including horizontal linear guide rail, slide block, hanging rope, pouring weight, cunning
Wheel, pulley drive device, slide block be arranged on the horizontal linear guide rail and can along horizontal linear slide, hanging rope
Upper end is fixed on the slide block, and the lower end connection pouring weight of hanging rope, the pulley are arranged on the underface of horizontal linear guide rail
And pulley is fitted with hanging rope in initial position, the pulley drive device is used for driving pulley along horizontal linear guide rail direction
Linear motion.
The beneficial effects of the present invention is：The inventive method is simple, can quickly measure slide block and be in contact with it between face
Frictional force, measurement result high precision, measurement efficiency are fast, it is adaptable to the friction measurement of slide block in high accuracy hanging field.
Description of the drawings
Fig. 1 is a kind of original state schematic diagram of the friction measurement device of line slideway coaster of the invention.
Fig. 2 is a kind of friction measurement device end-state schematic diagram of line slideway coaster of the invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1～2, a kind of friction measurement device of line slideway coaster, including horizontal linear guide rail 1, slide block
2nd, hanging rope 3, pouring weight 4, pulley 5, pulley drive device, slide block 2 are arranged on the horizontal linear guide rail 1 and can be straight along level
Line guide rail 1 slides, and the upper end of hanging rope 3 is fixed on the slide block 2, the lower end connection pouring weight 4 of hanging rope 3, the pulley 5
The underface and pulley 5 for being arranged on horizontal linear guide rail 1 is fitted with hanging rope 3 in initial position, the pulley drive device
Move along a straight line along 1 direction of horizontal linear guide rail for driving pulley 5.
Comprised the steps using the method for the measurement device frictional force, being fixed on the top of hanging rope 3 first can edge
On the slide block 2 that horizontal linear guide rail 1 slides, the bottom connection known load of hanging rope 3 is the pouring weight 4 of G, in horizontal linear guide rail
1 lower section arranges pulley 5, presses close to hanging rope 3 but does not compress and hang under hanging rope 3, i.e. original state under 5 original state of pulley
Lanyard 3 is overlapped with plumb line；Again along 1 direction propelling sheave of horizontal linear guide rail, 5 one segment distance, pulley 5 compresses hanging rope 3 band
Dynamic hanging rope 3 is moved together, and hanging rope 3 receives the pressure from pulley 5, and hanging rope 3 can form angle theta, hanging with plumb line
Rope 3 is Gsin θ by the size of the horizontal component of the pressure from pulley 5；Control pulley 5 is along 1 direction one of horizontal linear guide rail
Straight to move, when certain numerical value is reached, slide block 2 will do pursuit movement along the offset direction of pouring weight 4, and record sliding block 2 starts
4 net side-play amount of pouring weight during sliding, the hanging rope 3 thus obtained now can form angle theta ' with plumb line, so as to calculate this
When hanging rope 3 be subject to pulley 5 pressure horizontal component Gsin θ ', the force value is suitable with the friction force value of slide block 2, and the value of θ ' can
Calculated with the radiuscope by the length of hanging rope 3, the horizontal offset of pulley 5 and pulley 5.
Above-described embodiment is presently preferred embodiments of the present invention, is not the restriction to technical solution of the present invention, as long as
Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (1)
1. a kind of friction measurement device of line slideway coaster, it is characterised in that：Including horizontal linear guide rail (1), slide block
(2), hanging rope (3), pouring weight (4), pulley (5), pulley drive device, slide block (2) are arranged on the horizontal linear guide rail (1)
And can slide along horizontal linear guide rail (1), the upper end of hanging rope (3) is fixed on the slide block (2), the lower end of hanging rope (3)
Connection pouring weight (4), the pulley (5) be arranged on the underface of horizontal linear guide rail (1) and pulley (5) in initial position with hang
Lanyard (3) is fitted, and the pulley drive device is used for driving pulley (5) and moves along a straight line along horizontal linear guide rail (1) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620877904.7U CN206132286U (en) | 2016-08-12 | 2016-08-12 | Friction force measuring device of linear guide coaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620877904.7U CN206132286U (en) | 2016-08-12 | 2016-08-12 | Friction force measuring device of linear guide coaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206132286U true CN206132286U (en) | 2017-04-26 |
Family
ID=58563725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620877904.7U Expired - Fee Related CN206132286U (en) | 2016-08-12 | 2016-08-12 | Friction force measuring device of linear guide coaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206132286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441666A (en) * | 2016-08-12 | 2017-02-22 | 浙江工业大学 | Frictional force measuring method and frictional force measuring device for sliding block on horizontal linear guide rail |
-
2016
- 2016-08-12 CN CN201620877904.7U patent/CN206132286U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441666A (en) * | 2016-08-12 | 2017-02-22 | 浙江工业大学 | Frictional force measuring method and frictional force measuring device for sliding block on horizontal linear guide rail |
| CN106441666B (en) * | 2016-08-12 | 2022-05-13 | 浙江工业大学 | Method for measuring friction force of sliding block on horizontal linear guide rail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20190812 |