CN109269437A - A kind of detection method of band brake brake band - Google Patents
A kind of detection method of band brake brake band Download PDFInfo
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- CN109269437A CN109269437A CN201810791539.1A CN201810791539A CN109269437A CN 109269437 A CN109269437 A CN 109269437A CN 201810791539 A CN201810791539 A CN 201810791539A CN 109269437 A CN109269437 A CN 109269437A
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- brake band
- brake
- band
- platform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a kind of detection methods of band brake brake band, belong to marine machinery technical field.The detection method includes: to provide a platform, draws the profile for having the effective object of brake band on platform；Brake band is placed on platform, the contour convergence of the effective object of at least one projection and brake band of the point on platform on the acting surface of brake band, outside the profile for the effective object that projection of other points on platform is located at brake band on the acting surface of brake band；Brake band is divided into multistage, the arc length of every section of brake band is less than or equal to setting length；Measure maximum distance of the both ends of each section of brake band between the profile of the effective object of projection and brake band on platform；When each section of brake band measurement maximum distance maximum value within the set range when, determine brake band qualification；When at least one of maximum value of maximum distance of each section of brake band measurement is outside setting range, determine that brake band is unqualified.The detection to brake band can be achieved in the present invention.
Description
Technical field
The present invention relates to marine machinery technical field, in particular to a kind of detection method of band brake brake band.
Background technique
Windlass (English: windlass) be for naval vessel anchor, cast anchor heaving pile when the mechanical device that uses, be typically mounted on
On the main deck of ship initial and tail sections, it is used to retractable anchor and anchor chain (or hawser).Band brake is the important composition of windlass
Part is shunk using the brake band being centered around around the braked wheel of windlass and generates braking effect.Band brake design
Reasonability and the accuracy of manufacture will have a direct impact on the reliability that windlass uses.
Band brake is mainly made of brake drum, brake band, hydraulic cylinder and piston etc..If the manufacture of brake band does not conform to
Lattice, then the theoretical radian of the practical radian meeting substantial deviation design of brake band, causes between brake band and the braked wheel of windlass
There are biggish gap or contacts unevenly, and when in turn resulting in windlass brake operating, brake band can not be by the system of windlass
Driving wheel is held tightly, and band brake cannot stop windlass rotation in time, and there are anchor chains to shake off, the security risk of driving.Therefore, if
Counting out the suitable brake band of radian is the basis of windlass safety operation, and produce radian accurately brake band be windlass peace
The key of full operation.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
Brake band can be optimized by way of theoretical calculation or using finite element simulation at present, completely may be used
To design the suitable brake band of radian.But lacks at present according to the brake band of design and manufacture and generally acknowledge that feasible method is examined
It surveys, can not determine whether to produce radian accurately brake band.
Summary of the invention
The embodiment of the invention provides a kind of detection methods of band brake brake band, are able to solve prior art shortage
The problem of generally acknowledging feasible method detection band brake brake band, can not determining the accuracy of brake band manufacture.The technology
Scheme is as follows:
The embodiment of the invention provides a kind of detection method of band brake brake band, the detection method includes:
One platform is provided, draws the profile for having the effective object of brake band on the platform；
The brake band is placed on the platform, at least one point is in the platform on the acting surface of the brake band
On projection and the contour convergence of the effective object of the brake band, other points are in the platform on the acting surface of the brake band
On projection be located at the brake band effective object profile outside；
The brake band is divided into multistage, the arc length of every section of brake band is less than or equal to setting length；
Measure the wheel projected with the effective object of the brake band of the both ends of each section of brake band on the platform
Maximum distance between exterior feature；
When the maximum value of the maximum distance of each section of brake band measurement within the set range when, determine the brake band
It is qualified；
When at least one of maximum value of maximum distance of each section of brake band measurement is outside setting range, determine
The brake band is unqualified.
It is optionally, described that the brake band is divided into multistage, comprising:
It is segmented in the middle part of from the both ends of the brake band to the brake band.
Optionally, the work projected with the brake band of the both ends of each section of brake band of the measurement on the platform
With the maximum distance between the profile of object, comprising:
The center of the profile of the end of the brake band and the effective object of the brake band is drawn on the platform
Line obtains the intersection point of the profile of the effective object of the line and the brake band；
The corner for having rectangular ruler is arranged on the intersection point；
Maximal clearance between the brake band and the rectangular ruler of tool is measured using the ruler of measurement length, and
Using the maximal clearance as the projection on the platform of the end of the brake band and the effective object of the brake band
Maximum distance between profile.
Optionally, when one end of one section of brake band is the endpoint of the entire brake band, the detection method is also
Include:
At least one is selected to measure line in the acting surface of the brake band, each point and institute on measurement line described in same
The line at the center of the profile of the effective object of brake band is stated in the same plane with horizontal plane；
Measure the wheel projected with the effective object of the brake band of point on the platform on measurement line described in each item
Maximum distance between exterior feature.
Optionally, the effective object projected with the brake band when the middle part of one section of brake band on the platform
Profile between maximum distance be greater than the projection and the effect of the brake band of the both ends of the brake band on the platform
When maximum distance between the profile of object, the detection method further include:
At least one is selected to measure line in the acting surface of the brake band, each point and institute on measurement line described in same
The line at the center of the profile of the effective object of brake band is stated in the same plane with horizontal plane；
Measure the wheel projected with the effective object of the brake band of point on the platform on measurement line described in each item
Maximum distance between exterior feature.
Optionally, the effective object projected with the brake band when the both ends of one section of brake band on the platform
Profile between maximum distance outside the setting range when, the detection method further include:
At least one is selected to measure line in the acting surface of the brake band, each point and institute on measurement line described in same
The line at the center of the profile of the effective object of brake band is stated in the same plane with horizontal plane；
Measure the wheel projected with the effective object of the brake band of point on the platform on measurement line described in each item
Maximum distance between exterior feature.
Optionally, when one end of one section of brake band is the endpoint of the entire brake band, the detection method is also
Include:
When at least one of minimum value of maximum distance of each section of brake band measurement is outside the setting range,
Determine that the brake band is unqualified.
Optionally, the detection method further include:
Measure the depth of height or recess raised on the acting surface of the brake band；
When the depth of height or recess raised on the acting surface of the brake band is less than or equal to given threshold, really
The fixed brake band is qualified；
When the depth of height or recess raised on the acting surface of the brake band is greater than given threshold, described in determination
Brake band is unqualified.
Optionally, after determining that the brake band is unqualified, the detection method further include:
Using the outside of brake band described in flame baking, the brake band is corrected.
Optionally, after determining that the brake band is unqualified, the detection method further include:
The outside that the brake band is acted on using decompression jack, is corrected the brake band.
Technical solution provided in an embodiment of the present invention has the benefit that
The platform for having the profile of effective object of brake band is drawn by providing one, brake band is placed on platform, is made
The contour convergence of the effective object of at least one projection and brake band of the point on platform, the work of brake band on the acting surface of dynamic band
With projection of the points other on face on platform outside the profile of the effective object of brake band, brake band is divided into arc length and is less than
Or the multistage equal to setting length, measure the wheel of the effective object of projection and brake band of the both ends of each section of brake band on platform
Maximum distance between exterior feature, and whether within the set range according to the maximum distance of measurement, determine whether brake band is qualified, realizes
Detection to brake band manufacture accuracy on the brake wheel, can guarantee anchor mechanism to avoid by the installation of underproof brake band
Dynamic validity.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of band brake brake band provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the detection method of band brake brake band provided in an embodiment of the present invention；
Fig. 3 is the side view provided in an embodiment of the present invention drawn and have the platform of the profile of effective object of brake band；
Fig. 4 is the top view provided in an embodiment of the present invention drawn and have the platform of the profile of effective object of brake band；
Fig. 5 is the side view of the platform provided in an embodiment of the present invention for being placed with brake band；
Fig. 6 is the top view of the platform provided in an embodiment of the present invention for being placed with brake band；
Fig. 7 is the schematic diagram that the both ends of brake ribbon provided in an embodiment of the present invention are segmented；
Fig. 8 is the schematic diagram that the both ends of brake ribbon provided in an embodiment of the present invention are segmented；
Fig. 9 is maximal clearance between the brake band and square provided in an embodiment of the present invention ruler in different location
Instrumentation plan；
Figure 10 is maximal clearance between the brake band and square provided in an embodiment of the present invention ruler in different location
Instrumentation plan；
Figure 11 is the instrumentation plan of ruler when having recess on brake band provided in an embodiment of the present invention；
Figure 12 is the instrumentation plan of ruler when having protrusion on brake band provided in an embodiment of the present invention；
Figure 13 is the structural schematic diagram of arrestment mechanism control brake band provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The detection method for first Fig. 1 being combined to introduce band brake brake band provided in an embodiment of the present invention below is answered
The structure of band brake brake band.
Fig. 1 is a kind of structural schematic diagram of band brake brake band provided in an embodiment of the present invention.Referring to Fig. 1, braking
Band 10 includes at least one section of brake ribbon 11, and brake ribbon 11 is in arc-shaped, to be set in outside the braked wheel 20 of windlass, thus rising
By 20 locking of braked wheel when windlass brake operating, reach braking effect.It, can when brake band 10 includes at least two sections of brake ribbons 11
Will at least two sections of brake ribbons 11 be sequentially connected, and the center of circle of each section of brake ribbon 11 is overlapped, to reach and one whole section of brake ribbon
11 identical effects (the sum of the arc length that the arc length of one whole section of brake ribbon 11 is equal at least about two section of 11 brake ribbon).
Specifically, the both ends of each section of brake ribbon 11 are equipped with connection otic placode 12, and connection otic placode 12 is equipped with pin hole 13.By one
In a connection otic placode 12 on the pin hole 13 and another section of brake ribbon 11 in a connection otic placode 12 on section brake ribbon 11
Pin hole 13 is aligned, and is inserted into pin shaft in two pin holes 13 after alignment, can be hinged by two sections of brake ribbons 11.Example
Such as, brake band shown in FIG. 1 includes two sections of brake ribbons 11, is referred to as first brake band and the second brake ribbon；Both ends brake ribbon
11 both ends are equipped with connection otic placode 12, are referred to as the first connection otic placode and the second connection otic placode；Connection otic placode 12 is equipped with
Pin hole 13.It the pin hole 13 opened up in second connection otic placode of first brake band and is opened up in the first connection otic placode of the second brake ribbon
Pin hole 13 be aligned, in two pin holes 13 of alignment be inserted into pin shaft can be hinged by first brake band and the second brake ribbon.
In practical applications, as shown in Figure 1, pin hole 13 is usually provided with connection otic placode 12 close to the end of brake ribbon 11
On region, the direction that the width W of connection otic placode 12 can extend from the end of brake ribbon 11 to the middle part of brake ribbon 11 gradually subtracts
It is small, so that the intensity of connection otic placode reaches best.
In addition, the ends A of brake band 10, the connection otic placode of B 12 are used to connect with arrestment mechanism, and in the work of arrestment mechanism
The distance between ends A, the B of brake band 10 D is decreased or increased under.If the distance between the ends A of brake band 10, B D subtracts
Small, then brake band 10 is tightened, and by 20 locking of braked wheel, plays braking action；If the distance between the ends A of brake band 10, B
D increases, then brake band 10 unclamps, and braked wheel 20 can be with normal rotation.
In the concrete realization, when brake band 10 includes one section of brake ribbon 11, the engaging lug of the both ends setting of brake ribbon 11
Plate 12 is ends A, the connection otic placode of B 12 of brake band 10.When brake band 10 includes at least two sections of brake ribbons 11, two brakes
The connection otic placode 12 for one end setting that vehicle band 11 is not connect with other brake ribbons 11 is respectively the company of the ends A of brake band 10, B
Ear connecting plate 12.Or by taking brake band shown in FIG. 1 as an example, the second of the first connection otic placode of first brake band and the second brake ribbon
Connection otic placode is respectively the ends A of brake band 10, the connection otic placode of B 12.
In practical applications, suspender can also be arranged in the middle part of brake ribbon 11, be such as provided with the otic placode of through-hole, with convenient
Travelling brake band.
The embodiment of the invention provides a kind of detection methods of band brake brake band, are suitable for band shown in FIG. 1
Formula brake band is detected.Fig. 2 is a kind of detection method of band brake brake band provided in an embodiment of the present invention
Flow chart, referring to fig. 2, which includes:
Step 101: a platform is provided.
In the present embodiment, the profile for having the effective object of brake band is drawn on platform.Specifically, drawing on platform has had
The profile of the braked wheel of windlass.It is to utilize the tightening of brake band and will brake when being braked due to band brake to windlass
Locking is taken turns, therefore brake band is detected on drawing the platform for having the profile of braked wheel, is conducive to determine brake band
Braking effect, and then determine the accuracy of brake band manufacture.
Fig. 3 is the side view provided in an embodiment of the present invention drawn and have the platform of the profile of effective object of brake band.Ginseng
See Fig. 3, the upper surface of platform 30 is the plane for being parallel to horizontal plane, in order to which the effective object of brake band is plotted in platform
On, while the accuracy of detection can be improved to avoid the appearance of detection error.Fig. 4 is that drafting provided in an embodiment of the present invention has
The top view of the platform of the profile of the effective object of brake band, referring to fig. 4, drawing on the upper surface of platform 30 has braked wheel 20
Profile.
Optionally, before the step 101, which can also include:
The profile of the effective object of brake band is drawn on platform.
When first time detecting band brake brake band, usually not ready-made drafting has the braking object of brake band
The platform of profile, it is therefore desirable to first find a platform, and on platform draw brake band effective object profile, drawn
It is formed with the platform of the profile of the braking object of brake band, band brake brake band is detected.Belt is detected in first time
When brake band and then secondary detection band brake brake band, detection band brake for the first time can be directly used
The drafting obtained when brake band has the platform of the profile of the braking object of brake band, detects to band brake brake band.
In specific implementation, since brake band is in arc-shaped, the profile for braking the effective object of conduction band is specially certain
The circle of a radius or diameter.When drawing the profile of effective object of brake band on platform, the work of brake band can be first obtained
With the size (diameter or radius) of object, circle is drawn on platform according still further to the size of acquisition, forms the effect of brake band
The profile of object.
For example, choosing measurement point at the edge of the effective object of brake band, the starting point of dimensional measuring instrument is fixed on
In measurement point；Movable length measuring tool, find out on the edge of the effective object of measurement point and brake band between each point away from
Maximum value from, and using the maximum value found out as the diameter of the effective object of brake band；According to circular diameter and radius
Between reduction formula, the radius of the effective object of brake band is obtained by the diameter of the effective object of brake band, to be made
The size of the effective object of dynamic band.
Then fixed point is chosen on platform, and one end of rope is fixed in fixed point；Rope is straightened, is chosen on rope
Dynamic point, the length of the rope between dynamic point and fixed point are equal to the radius of the effective object of brake band；Centered on fixed point, by dynamic point
Rotation round a fixed point one encloses, and the rope between dynamic point and fixed point keeps straight condition during dynamic point rotation, and turns in dynamic point
In dynamic process, the motion profile set out a little is drawn on platform using drawing tool, thus according to the size of acquisition in platform
The profile of the upper effective object for forming brake band.
Step 102: brake band is placed on platform.
In the present embodiment, the effect pair that at least one puts the projection and brake band on platform on the acting surface of brake band
The contour convergence of elephant, projection of other points on platform is located at the profile of the effective object of brake band on the acting surface of brake band
Outside.Other points are in the work surface of brake band in each point on the acting surface of brake band, except on platform projection and brake band
Effective object contour convergence point except point.
In practical applications, when brake band includes at least two sections of brake ribbons, once only one section of brake ribbon can be placed
It is detected on platform.When one section of brake ribbon is placed on platform, the midpoint of brake ribbon can be made flat with travelling brake band
The contour convergence of the effective object of projection and brake band on platform, projection of the both ends of brake ribbon on platform are located at brake band
Outside the profile of effective object, so that quickly brake ribbon is placed on the suitable position of platform.Can also with travelling brake band, make by
The both ends of brake ribbon are positioned as close to the profile of the effective object of brake band, and the effect at the both ends of brake ribbon and brake band
The distance between center of profile of object is equal, and brake ribbon is placed on the suitable position of platform.
Fig. 5 is the side view of the platform provided in an embodiment of the present invention for being placed with brake band, and referring to Fig. 5, brake band 10 is put
It sets on the upper surface of platform 30.Fig. 6 is the top view of the platform provided in an embodiment of the present invention for being placed with brake band, referring to figure
6, the contour convergence of projection and braked wheel 20 of the point at 10 middle part of brake band on platform 30, the point at 10 both ends of brake band is in platform
Projection on 30 is located at outside the profile of braked wheel 20.
Since brake band is acted on effective object outside effective object, brake band is located at effect under normal circumstances
Outside object.If projection of at least one point on platform is located at the profile of the effective object of brake band on the acting surface of brake band
It is interior, then it is inconsistent with actual conditions, need to adjust the placement location of brake band, until at least one point on the acting surface of brake band
The contour convergence of the effective object of projection and brake band on platform, throwing of other points on platform on the acting surface of brake band
Shadow is located at outside the profile of the effective object of brake band.
If brake band, in all placement locations on platform, at least one point is in platform on the acting surface of brake band
On projection and brake band effective object contour convergence in the case where, at least one in other points on the acting surface of brake band
In the profile for the effective object that projection of the point on platform is located at brake band, then illustrating the manufacture of brake band, there are problem or systems
There are problems for the drafting of the profile of the effective object of dynamic band.It can further be detected at this time, be the system of brake band with determination
Making the drafting of the profile of the effective object there are problem or brake band, there are problems.
It, can be using the effective object of dimensional measuring instrument detection brake band in a kind of implementation of the present embodiment
Whether the distance between the center (pinpointing) of profile and each point on the profile of the effective object of brake band are equal to brake band
The radius of effective object；If on the profile of the effective object at the center and brake band of the profile of the effective object of brake band at least
Radius of the distance between one point not equal to the effective object of brake band, it is determined that the profile of the effective object of brake band is drawn
System needs the profile to the effective object for the brake band drawn on platform to modify or draw again on platform there are problem
The profile of the effective object of brake band processed；Otherwise, if the effect at the center of the profile of the effective object of brake band and brake band
The distance between all the points are equal to the radius of the effective object of brake band on the profile of object, it is determined that the effect pair of brake band
There is no problem for the drafting of the profile of elephant, is that there are problems for the manufacture of brake band.This implementation determine the accuracy of result compared with
It is high.
In practical applications, it after the profile for the effective object that brake band can be drawn on platform, directlys adopt above-mentioned
Implementation determines the drafting of the profile of the effective object of brake band with the presence or absence of problem.If it is determined that the effective object of brake band
The drafting of profile there is no problem, then brake band is placed on platform again.In this way if all on platform of brake band are put
In seated position, the profile weight of the effective object of at least one projection and brake band of the point on platform on the acting surface of brake band
In the case where conjunction, projection of at least one point on platform is located at the effect pair of brake band in other points on the acting surface of brake band
In the profile of elephant, then the drafting situation of problems of the profile of the effective object of brake band can be excluded, directly determining is system
There are problems for the manufacture of dynamic band.
For another example, braking can also be located at using the projection on the acting surface of dimensional measuring instrument detection brake band on platform
Whether the distance between center (pinpointing) of the profile of the effective object of point and brake band in the profile of the effective object of band
Less than the radius of the effective object of brake band；If the projection on the acting surface of brake band on platform is located at the effect of brake band
The distance between center of profile of effective object of point and brake band in the profile of object is less than the effective object of brake band
Radius, it is determined that be that there are problems for the manufacture of brake band；, whereas if the projection position on the acting surface of brake band on platform
Be greater than in the distance between the center of profile of effective object of point and brake band in the profile of the effective object of brake band or
Equal to the radius of the effective object of brake band, it is determined that be that there are problems for the drafting of the profile of the effective object of brake band.It is this
Implementation is operationally more simple and convenient.
Optionally, which can also include:
Measure both ends and the system of the distance between the both ends of brake band and the axis of symmetry of brake band a, b and brake band
The distance between the vertical line of the axis of symmetry of dynamic band c, d, the vertical line of the axis of symmetry of the axis of symmetry and brake band of brake band exist
Intersect at the center of the profile of the effective object of brake band；
The distance between the both ends of brake band and axis of symmetry of brake band and the first theoretical value are compared, will be braked
The distance between the both ends of band and vertical line of the axis of symmetry of brake band and the second theoretical value are compared.
If difference of the distance between the axis of symmetry of one end of brake band and brake band between the first theoretical value exists
The distance between vertical line of the axis of symmetry of outside setting range or one end of brake band and brake band is between the second theoretical value
Difference outside setting range, then can primarily determining the manufacture of brake ribbon, there are problems., whereas if the both ends of brake band with
Difference between the distance between axis of symmetry of brake band and the first theoretical value within the set range, and both ends of brake band
The distance between vertical line of the axis of symmetry of brake band and the second theoretical value within the set range, then can primarily determine brake
Band is made without problem.
In practical applications, the vertical line that the axis of symmetry and the axis of symmetry can be drawn on platform in advance, further according to symmetrical
Brake band is placed on platform by the vertical line of axis and the axis of symmetry, measure brake band both ends and brake band the axis of symmetry it
Between distance a, b and brake band both ends and brake band the distance between the vertical line of the axis of symmetry c, d.
When brake band includes at least two sections of brake ribbons, once only one section of brake ribbon can be placed on to measure on platform and stopped
The axis of symmetry at the both ends and brake ribbon of the distance between the axis of symmetry of the both ends of vehicle band and brake ribbon a, b and brake ribbon
The distance between vertical line c, d (as shown in Figure 6).
Step 103: brake band is divided into multistage.
In the present embodiment, the arc length of every section of brake band is less than or equal to setting length.By the way that brake band is divided into arc
Degree is no more than the multistage of setting length, can be detected respectively to position different on brake band, improve the standard of testing result
True property.
Specifically, setting length can be 40mm~60mm, preferably 50mm.It on the one hand will not be too short due to setting length
And cause that the number of segment divided is excessive, workload is too big；On the other hand portion will not be caused since setting length is too long
It omits, testing result inaccuracy.
In practical applications, can from the both ends of brake band to brake band in the middle part of be segmented, i.e. both ends of brake band
Arc length after segmentation is equal to setting length.When brake band includes at least two sections of brake ribbons, then from the both ends of brake ribbon to brake
It is segmented in the middle part of band, the arc length after the both ends segmentation of brake ribbon is equal to setting length.
Fig. 7 and Fig. 8 is respectively the schematic diagram that the both ends of brake ribbon provided in an embodiment of the present invention are segmented.Referring to Fig. 7
With shown in Fig. 8, the arc length after the both ends segmentation of brake ribbon 11 is equal to setting length L.
Step 104: the profile of the effective object of projection and brake band of the both ends on platform of each section of brake band of measurement it
Between maximum distance S (as shown in Figure 7 and Figure 8).
In the present embodiment, the end of brake band is between the profile of the effective object of projection and brake band on platform
Maximum distance is the line at the center of the profile of the effective object of the end and brake band of brake band and the effective object of brake band
Profile intersection point, with the maximum distance of the end of brake band between the projection on platform.
In practical applications, the profile of the end of brake band and the effective object of brake band can be first drawn on platform
The line at center, to obtain the line and brake band at the center of the profile of the end of brake band and the effective object of brake band
The intersection point of the profile of effective object；The corner of square (or right angle triangle) is arranged in end and the braking of brake band again
On the intersection point of the profile of the effective object of the line and brake band at the center of the profile of the effective object of band；Finally use ruler
(or vernier caliper) measures the maximal clearance between brake band and square, as projection of the end of brake band on platform
Maximum distance between the profile of the effective object of brake band.
Maximal clearance of the Fig. 9 and Figure 10 between brake band provided in an embodiment of the present invention and square is in different location
The instrumentation plan of ruler.Referring to shown in Fig. 9 and Figure 10, the corner of square 40 is arranged on the profile of braked wheel 20, and straight
Angle square 40 is parallel to one end of horizontal plane and extends to the direction far from brake band 10, square 40 perpendicular to horizontal plane one end to
Direction far from platform 30 extends.It is moved up and down, can be obtained by the acting surface that the starting point of ruler 50 is against brake band 10
To the maximal clearance between brake band and square.
Optionally, when one end of one section of brake band is the endpoint of entire brake band, which can also include:
At least one is selected to measure line in the acting surface of this section of brake band, same measures each point and brake band on line
Effective object profile center plane of the line same with horizontal plane on；
Measure maximum of the point on each item measurement line between the profile of the effective object of projection and brake band on platform
Distance.
Due to maximum of the endpoint between the profile of the effective object of projection and brake band on platform of entire brake band
Distance is usually larger, therefore additional increase measures line, is conducive to the accuracy for improving detection.
Wherein, maximum distance of the point between the profile of the effective object of projection and brake band on platform on line is measured
To measure the effect of the plane and brake band on line where the line at the center of the profile of the effective object of each point and brake band
Maximum distance of each point between the projection on platform on the intersection point of the profile of object, with measurement line.
It in practical applications, can be with the profile of the effective object of the end of brake band projection and brake band on platform
Between maximum distance it is similar, the wheel of the effective object of point and brake band intersected on measurement line with platform is first drawn on platform
The line at wide center, to obtain on measurement line where the line at the center of the profile of the effective object of each point and brake band
Plane and brake band effective object profile intersection point；The corner setting of square (or right angle triangle) is being surveyed again
Measure the effective object of the plane and brake band on line where the line at the center of the profile of the effective object of each point and brake band
Profile intersection point on；Finally using the maximal clearance between ruler (or vernier caliper) measurement brake band and square, i.e.,
For maximum distance of the point on measurement line between the profile of the effective object of projection and brake band on platform.
Optionally, when the middle part of one section of brake band is between the profile of the effective object of projection and brake band on platform
Maximum distance is greater than maximum of the both ends of this section of brake band between the profile of the effective object of projection and brake band on platform
Apart from when, which can also include:
At least one is selected to measure line in the acting surface of this section of brake band, same measures each point and brake band on line
Effective object profile center plane of the line same with horizontal plane on；
Measure maximum of the point on each item measurement line between the profile of the effective object of projection and brake band on platform
Distance.
Since the distance between the profile of effective object of middle part and brake band is larger, it increase accordingly the survey at middle part
Amount is conducive to the accuracy for improving detection.
Optionally, when the both ends of one section of brake band are between the profile of the effective object of projection and brake band on platform
When maximum distance is outside setting range, which can also include:
At least one is selected to measure line in the acting surface of this section of brake band, same measures each point and brake band on line
Effective object profile center plane of the line same with horizontal plane on；
Measure maximum of the point on each item measurement line between the profile of the effective object of projection and brake band on platform
Distance.
If maximum of the both ends of one section of brake band between the profile of the effective object of projection and brake band on platform
Distance is outside setting range, then this section of whole section of brake band possibility is all problematic, it is also possible to just be that end is problematic.By
When being corrected to underproof brake band, usually underproof section in brake band is corrected, therefore increase accordingly
The measurement at middle part is conducive to the accuracy for improving correction.
Step 105: when each section of brake band measurement maximum distance maximum value within the set range when, determine brake band
It is qualified.
Step 106: when at least one of maximum value of maximum distance of each section of brake band measurement is outside setting range,
Determine that brake band is unqualified.
The embodiment of the present invention draws the platform for having the profile of effective object of brake band by providing one, and brake band is placed
On platform, the profile weight of the effective object of at least one projection and brake band of the point on platform on the acting surface of brake band
It closes, outside the profile for the effective object that projection of other points on platform is located at brake band on the acting surface of brake band, by brake band
It is divided into the multistage that arc length is less than or equal to setting length, measures projection and brake band of the both ends of each section of brake band on platform
Effective object profile between maximum distance and whether within the set range according to the maximum distance of measurement determine braking
Whether band is qualified, realizes to the detection of brake band manufacture accuracy, can be mounted on braked wheel to avoid by underproof brake band
On, guarantee the validity of windlass braking.
Optionally, when one end of one section of brake band is the endpoint of entire brake band, which can also include:
When at least one of minimum value of maximum distance of each section of brake band measurement is outside setting range, braking is determined
With unqualified.
Due to maximum of the endpoint between the profile of the effective object of projection and brake band on platform of entire brake band
Distance usually it is larger, if each section of brake band measurement maximum distance minimum value outside setting range, although not interfering with
Braking effect, but the normal operation of braked wheel can be influenced since braking effect is very good.
Specifically, when one end of one section of brake band be entire brake band endpoint when, setting range can for 1.5mm~
2.5mm；When the both ends of one section of brake band are not the endpoint of entire brake band, setting range can be for less than or equal to 1mm.
Optionally, which can also include:
Measure the depth of height or recess raised on the acting surface of brake band；
When the depth of height or recess raised on the acting surface of brake band is less than or equal to given threshold, system is determined
Dynamic band is qualified；
When the depth of height or recess raised on the acting surface of brake band is greater than given threshold, determine brake band not
It is qualified.
Specifically, given threshold can be 0.5mm.
Since the protrusion or recess of brake band acting surface can all influence the braking effect of brake band, increase to convex
The measurement for playing height or cup depth, can be improved the accuracy of detection.
In practical applications, first square (or right angle triangle) can be offseted with brake band；If square with
There are gaps between brake band, then illustrate there is protrusion or recess on brake band；It is measured again using ruler (or vernier caliper)
Maximal clearance between brake band and square, the as depth of raised height or recess.
Figure 11 and Figure 12 is respectively that the measurement of ruler when having recess and protrusion on brake band provided in an embodiment of the present invention is shown
It is intended to.Referring to Figure 11 and Figure 12, square 40 offsets with brake band 10, and square 40 is parallel to one end of horizontal plane to separate
The direction of brake band 10 extends, and square 40 extends perpendicular to one end of horizontal plane to the direction far from platform 30.By will be straight
The acting surface that the starting point of ruler 50 againsts brake band 10 moves up and down, and can be obtained between the maximum between brake band and square
Gap.
In practical applications, above-mentioned detection method can carry out when brake band is in releasing orientation, can also be
Brake band carries out when being in tightening state, needs to tighten brake band using arrestment mechanism at this time.Figure 13 is that the present invention is real
The structural schematic diagram of the arrestment mechanism control brake band of example offer is provided.Referring to Figure 13, arrestment mechanism 60 include the first connector 61,
Second connector 62 and two-way lead screw 63.The first end of first connector 61 is set in the first end of two-way lead screw 63, and first
The second end of connector 61 and the first end of brake band 10 are hinged；The first end of second connector 62 is set in two-way lead screw 63
In second end, the second end of the second connector 62 and the second end of brake band 10 are hinged.By rotating two-way lead screw 63, Ji Kezeng
Big or reduction the distance between first connecting rod 61 and the second connecting rod 62, and then increase or reduce the first end of brake band 10
The distance between second end realizes the tightening and release of brake band.
In a kind of implementation of the present embodiment, after determining that brake band is unqualified, which can also be wrapped
It includes:
Using the outside of flame baking brake band, brake band is corrected.
In another implementation of the present embodiment, after determining that brake band is unqualified, which can be with
Include:
The outside that brake band is acted on using decompression jack, is corrected brake band.
Above two implementation can be corrected underproof brake band, so that brake band is qualified.Namely
It says, after being corrected to underproof brake band, brake band can be detected using the above method again.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of detection method of band brake brake band, which is characterized in that the detection method includes:
One platform is provided, draws the profile for having the effective object of brake band on the platform；
The brake band is placed on the platform, at least one is put on the platform on the acting surface of the brake band
The contour convergence of projection and the effective object of the brake band, other points are on the platform on the acting surface of the brake band
Projection is located at outside the profile of the effective object of the brake band；
The brake band is divided into multistage, the arc length of every section of brake band is less than or equal to setting length；
Measure the projection of the both ends of each section of brake band on the platform and the effective object of the brake band profile it
Between maximum distance；
When the maximum value of the maximum distance of each section of brake band measurement within the set range when, determine that the brake band closes
Lattice；
When at least one of maximum value of maximum distance of each section of brake band measurement is outside setting range, described in determination
Brake band is unqualified.
2. detection method according to claim 1, which is characterized in that described that the brake band is divided into multistage, comprising:
It is segmented in the middle part of from the both ends of the brake band to the brake band.
3. detection method according to claim 1 or 2, which is characterized in that the both ends of each section of brake band of the measurement
Maximum distance between the profile of the effective object of projection and the brake band on the platform, comprising:
The line at the center of the profile of the end of the brake band and the effective object of the brake band is drawn on the platform,
Obtain the intersection point of the profile of the effective object of the line and the brake band；
The corner for having rectangular ruler is arranged on the intersection point；
Maximal clearance between the brake band and the rectangular ruler of the tool is measured using the ruler of measurement length, and by institute
State end projection on the platform and the profile of the effective object of the brake band of the maximal clearance as the brake band
Between maximum distance.
4. detection method according to claim 1 or 2, which is characterized in that when one end of one section of brake band is entire
When the endpoint of the brake band, the detection method further include:
At least one is selected to measure line in the acting surface of the brake band, each point and the system on measurement line described in same
The line at the center of the profile of the effective object of dynamic band is in the same plane with horizontal plane；
Measure described in each item the projection of point on the platform on measurement line and the effective object of the brake band profile it
Between maximum distance.
5. detection method according to claim 1 or 2, which is characterized in that when the middle part of one section of brake band is described
The both ends that maximum distance between the profile of the effective object of projection on platform and the brake band is greater than the brake band exist
When maximum distance between the projection and the profile of the effective object of the brake band on the platform, the detection method is also wrapped
It includes:
At least one is selected to measure line in the acting surface of the brake band, each point and the system on measurement line described in same
The line at the center of the profile of the effective object of dynamic band is in the same plane with horizontal plane；
Measure described in each item the projection of point on the platform on measurement line and the effective object of the brake band profile it
Between maximum distance.
6. detection method according to claim 1 or 2, which is characterized in that when the both ends of one section of brake band are described
When the maximum distance between projection and the profile of the effective object of the brake band on platform is outside the setting range, institute
State detection method further include:
At least one is selected to measure line in the acting surface of the brake band, each point and the system on measurement line described in same
The line at the center of the profile of the effective object of dynamic band is in the same plane with horizontal plane；
Measure described in each item the projection of point on the platform on measurement line and the effective object of the brake band profile it
Between maximum distance.
7. detection method according to claim 1 or 2, which is characterized in that when one end of one section of brake band is entire
When the endpoint of the brake band, the detection method further include:
When at least one of minimum value of maximum distance of each section of brake band measurement is outside the setting range, determine
The brake band is unqualified.
8. detection method according to claim 1 or 2, which is characterized in that the detection method further include:
Measure the depth of height or recess raised on the acting surface of the brake band；
When the depth of height or recess raised on the acting surface of the brake band is less than or equal to given threshold, institute is determined
State brake band qualification；
When the depth of height or recess raised on the acting surface of the brake band is greater than given threshold, the braking is determined
With unqualified.
9. detection method according to claim 1 or 2, which is characterized in that after determining that the brake band is unqualified, institute
State detection method further include:
Using the outside of brake band described in flame baking, the brake band is corrected.
10. detection method according to claim 1 or 2, which is characterized in that after determining that the brake band is unqualified,
The detection method further include:
The outside that the brake band is acted on using decompression jack, is corrected the brake band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791539.1A CN109269437B (en) | 2018-07-18 | 2018-07-18 | Detection method for braking belt of belt brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791539.1A CN109269437B (en) | 2018-07-18 | 2018-07-18 | Detection method for braking belt of belt brake |
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| Publication Number | Publication Date |
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| CN109269437A true CN109269437A (en) | 2019-01-25 |
| CN109269437B CN109269437B (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810791539.1A Active CN109269437B (en) | 2018-07-18 | 2018-07-18 | Detection method for braking belt of belt brake |
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| CN (1) | CN109269437B (en) |
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| CN109269437B (en) | 2020-08-07 |
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