阅读说明：本技术 一种用于检测皮带张紧力的检测装置及检测方法 (Detection device and detection method for detecting belt tension ) 是由 薛璐 于 2021-06-17 设计创作，主要内容包括：本发明公开了一种用于检测皮带张紧力的检测装置及检测方法,包括连杆、加载机构、定位机构和限位机构,所述限位机构和定位机构设于连杆的两端,所述加载机构设于连杆中部,所述定位机构包括设有滑槽的环形部和能够在滑槽内滑动的用于设于皮带顶部的定位部。本发明结构简单,操作方便,能够在狭窄的空间内完成对皮带张紧力的检测,其适用范围广,通用性强。(The invention discloses a detection device and a detection method for detecting the tension of a belt, and the detection device comprises a connecting rod, a loading mechanism, a positioning mechanism and a limiting mechanism, wherein the limiting mechanism and the positioning mechanism are arranged at two ends of the connecting rod, the loading mechanism is arranged in the middle of the connecting rod, and the positioning mechanism comprises an annular part provided with a sliding groove and a positioning part which can slide in the sliding groove and is arranged at the top of the belt. The belt tension detection device is simple in structure, convenient to operate, capable of detecting the belt tension in a narrow space, wide in application range and high in universality.)

1. The utility model provides a detection apparatus for be used for detecting belt tensile force, its characterized in that, includes connecting rod, loading mechanism, positioning mechanism and stop gear, the both ends of connecting rod are located to stop gear and positioning mechanism, the connecting rod middle part is located to loading mechanism, positioning mechanism is including the annular portion that is equipped with the spout and can be in the spout gliding location portion that is used for locating the belt top.

2. The detecting device for detecting the tension of a belt as claimed in claim 1, wherein the positioning portion comprises a positioning rod and a nut, the positioning rod comprises a threaded end and a smooth end, the threaded end penetrates through the sliding groove and extends outwards to be connected with the nut, and the smooth end is used for being arranged at the top of the belt.

3. The apparatus as claimed in claim 2, wherein the positioning portion further comprises a step pillar covering the smooth end, and the step pillar is fixedly connected to the smooth end.

4. The detecting device for detecting the tension of a belt as claimed in claim 3, wherein the annular portion is provided with scale marks, and the step post is provided with scale marks.

5. The apparatus of claim 1, wherein the loading mechanism comprises a square tenon joint and a torque wrench adapted to the square tenon joint, and the square tenon joint is fixedly connected to the connecting rod.

6. The device for detecting the tension of a belt according to claim 2, wherein the limiting mechanism comprises a limiting plate, the cross sections of two ends of the limiting plate are semi-cylindrical structures, and the limiting plate is detachably connected with the connecting rod.

7. The apparatus as claimed in claim 6, wherein the semi-cylindrical structure has a radius identical to a radius of the positioning rod.

8. The apparatus as claimed in claim 1, wherein the limiting mechanism and the loading mechanism are disposed on a transverse axis of the connecting rod.

9. The apparatus as claimed in claim 4, wherein the ring portion is arranged perpendicular to the link, and the zero scale on the scale line of the ring portion is located on the transverse axis of the link.

10. The method for detecting the belt tension according to claims 1 to 9, comprising the following steps:

placing the limiting mechanism at the bottom of the belt according to the thickness and the preset deflection value of the belt to be detected, placing the positioning part fixedly arranged relative to the annular part at the top of the belt, and placing the connecting rod close to the side surface of the belt;

loading the belt by using a loading mechanism until the limiting mechanism is completely attached to the bottom of the belt and the positioning part is completely attached to the top of the belt;

the torque displayed on the torque wrench is read and calculated.

Technical Field

The invention relates to a detection device and a detection method for detecting the tension of a belt, and belongs to the technical field of belt tension detection.

Background

As known by persons skilled in the art, the belt transmission can be stable and efficient only by applying proper tension to the belt, and if the tension is too large, the stress of the belt and a pulley bearing is intensified, and the service life is shortened; if the tension is too small, the belt and the pulley slip, the transmission power is reduced, and the belt wear is accelerated. Due to the lack of detection tools, assembly workers typically adjust and check belt tension via hand or force gauges, with large errors and low efficiency.

In the prior art, in order to solve the above problems, patent documents with patent application numbers CN201711319917.8 and published as 2018, 06, 26 disclose a device for measuring tension of a driving belt and a using method thereof, which comprises a moving reference plate, a measuring device body, a fixed reference plate and a scale type guide rail, the invention adopts the arrangement of three reference plates, can meet the requirements of belts with different lengths, simultaneously adopts a graduated scale type guide rail, and the moving reference plate, the measuring reference plate and the fixed reference plate are provided with observation windows for observing scales on the scale type guide rail, so that a user can conveniently adjust the distance between the moving reference plate, the measuring reference plate and the fixed reference plate, the measuring reference plate is always positioned at the midpoint position of the moving reference plate and the fixed reference plate, the mid point of two tangent points one-tenth straight lines avoids the measuring device body to appear measuring the problem that the dynamics is bigger than normal when measuring the belt.

However, the drawback of this patent is that: when the belts at different positions are detected, a straight plate with the length corresponding to the belts or an adjusting mechanism is required to be manufactured to abut against the two driving wheels, only the tension of the belts with two sections of approximately parallel parts can be measured, the tension of one section of the belts cannot be determined by measuring the tension, and a larger detection space is required, so that the application range of the technical scheme is greatly limited. For a mechanical product with a compact structure, the detection space of the belt tension is limited, so that a conventional detection tool is not convenient to detect.

In view of the above problems, the present invention provides a detection device and a detection method for detecting a belt tension.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides the detection device and the detection method for detecting the belt tension, can finish the detection of the belt tension in a narrow space, and has wide application range and strong universality.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

on one hand, the invention provides a detection device for detecting the tension of a belt, which comprises a connecting rod, a loading mechanism, a positioning mechanism and a limiting mechanism, wherein the limiting mechanism and the positioning mechanism are arranged at two ends of the connecting rod, the loading mechanism is arranged in the middle of the connecting rod, and the positioning mechanism comprises an annular part provided with a sliding groove and a positioning part capable of sliding in the sliding groove.

As a preferred embodiment, location portion includes locating lever and nut, the locating lever includes screw thread end and smooth end, the screw thread end runs through the spout and outwards extends and is connected with the nut, smooth end is used for locating the belt top.

As a preferred embodiment, the positioning portion further includes a step pillar sleeved on the smooth end, and the step pillar is fixedly connected with the smooth end.

In a preferred embodiment, the annular portion is provided with scale marks, and the step pillar is provided with scale marks.

In a preferred embodiment, the loading mechanism includes a square tenon joint and a torque wrench adapted to the square tenon joint, and the square tenon joint is fixedly connected to the connecting rod.

As a preferred embodiment, the limiting mechanism comprises a limiting plate, the cross sections of the two ends of the limiting plate are of semi-cylindrical structures, and the limiting plate is detachably connected with the connecting rod.

In a preferred embodiment, the radius of the semi-cylindrical structure is the same as the radius of the positioning rod.

In a preferred embodiment, the limiting mechanism and the loading mechanism are arranged on a transverse axis of the connecting rod.

In a preferred embodiment, the annular portion is arranged perpendicular to the connecting rod, and the zero scale on the scale mark of the annular portion is located on the transverse axis of the connecting rod.

In another aspect, the present invention provides a detection method, including the following detection steps:

placing the limiting mechanism at the bottom of the belt according to the thickness and the preset deflection value of the belt to be detected, placing the positioning part fixedly arranged relative to the annular part at the top of the belt, and placing the connecting rod close to the side surface of the belt;

loading the belt by using a loading mechanism until the limiting mechanism is completely attached to the bottom of the belt and the positioning part is completely attached to the top of the belt;

the torque displayed on the torque wrench is read and calculated.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a detection device for detecting the tension of a belt, which comprises a connecting rod, a loading mechanism, a positioning mechanism and a limiting mechanism, wherein the limiting mechanism and the positioning mechanism are arranged at two ends of the connecting rod, the loading mechanism is arranged in the middle of the connecting rod, and the positioning mechanism comprises an annular part provided with a sliding groove and a positioning part which can slide in the sliding groove and is arranged at the top of the belt. The belt tension detection device is simple in structure, convenient to operate, capable of detecting the belt tension in a narrow space, wide in application range and high in universality.

2. The invention also provides a detection method, the detection device is arranged on the belt to detect the tension of the belt, the detection of the tension of the belt can be completed under the condition of not needing larger space and force, the detection operation intensity can be reduced, the working efficiency is improved, and the detection method is suitable for detecting the tension of various types and specifications of belts.

Drawings

Fig. 1 is a schematic structural view of a detecting device for detecting a belt tension according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a detection device for detecting a belt tension according to an embodiment of the present invention in use on a belt;

FIG. 3 is a schematic structural diagram of a positioning portion of a detecting device for detecting a belt tension according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a square tenon joint of a detecting apparatus for detecting a tension of a belt according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an exemplary embodiment of a detecting device for detecting a belt tension;

in the figure: 1. a connecting rod; 2. a loading mechanism; 21. a square tenon joint; 22. a torque wrench; 3. a positioning mechanism; 31. an annular portion; 311. a chute; 312. scale lines; 32. a positioning part; 321. positioning a rod; 322. a nut; 323. a step post; 4. a limiting mechanism; 41. a limiting plate; 42. a semi-cylindrical structure; 5. a threaded end; 6. a smooth end; 7. scale marking; 8. a belt.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The first embodiment is as follows:

the invention provides a detection device for detecting the tension of a belt 8, please refer to fig. 1 and fig. 2, and the detection device comprises a connecting rod 1, a loading mechanism 2, a positioning mechanism 3 and a limiting mechanism 4, wherein the limiting mechanism 4 is arranged at the bottom of the belt 8, the limiting mechanism 4 and the positioning mechanism 3 are arranged at two ends of the connecting rod 1, the loading mechanism 2 is arranged in the middle of the connecting rod 1, the positioning mechanism 3 comprises an annular part 31 and a positioning part 32, and the annular part 31 is provided with scale marks 312.

The annular portion 31 is provided with a sliding groove 311, the positioning portion 32 can slide in the sliding groove 311, and the positioning portion 32 is arranged at the top of the belt 8.

In this embodiment, the positioning portion 32 includes a positioning rod 321 and a nut 322, and preferably, the nut 322 is a wing nut. The positioning rod 321 includes a threaded end 5 and a smooth end 6. referring to fig. 3, the threaded end 5 penetrates through the sliding slot 311 and extends outward to connect with the wing nut, and when the wing nut is loosened, the positioning rod 321 can move in the sliding slot 311. It should be understood that the wing nut may be replaced by a hexagonal nut, a ring nut, or other structures capable of locking the positioning rod 321.

The smooth end 6 is used for being arranged at the top of the belt 8, and in detail, the radius of the smooth end 6 of the positioning rod 321 is denoted as r, which can be used for loading the belt 8.

The positioning portion 32 further includes a step column 323 sleeved on the smooth end 6, the step column 323 is fixedly connected to the smooth end 6, and the step column 323 is used for enabling the positioning rod 321 to be stably connected with the annular portion 31 in a sliding manner. In a preferred embodiment, the step column 323 is provided with a scale mark 7, and the scale mark 7 is used for being matched and positioned with the scale mark 312 on the annular part 31 so as to preset the detection flexibility.

The loading mechanism 2 comprises a square tenon joint 21 and a torque wrench 22, the square tenon joint 21 is fixedly connected with the connecting rod 1, and the torque wrench 22 is matched with the square tenon joint 21. Optionally, the square tenon joint 21 is an octagonal or decagonal inner square tenon structure, please refer to fig. 4, the inner length of the square tenon joint 21 may be 6.3mm, 10mm or 12.5mm, or may be other sizes, and those skilled in the art may set the inner length of the square tenon joint 21 according to the size of the connecting rod 1, which is not limited herein. Connect moment spanner 22 through square tenon joint 21, can make belt 8 loading more convenient, simultaneously, when detecting belt 8 tensile force, required space is littleer.

The limiting mechanism 4 includes a limiting plate 41, the cross section at the two ends of the limiting plate 41 is a semi-cylindrical structure 42, preferably, the radius of the semi-cylindrical structure 42 is the same as the radius of the positioning rod 321, in other words, the radius of the semi-cylindrical structure 42 is also r, it should be understood that the whole thickness of the limiting plate 41 is 2r, and the semi-cylindrical structure 42 at the two ends of the limiting plate 41 is a semi-cylinder with the radius of r. It should be noted that the limiting plate 41 may be replaced by another structure fixedly connected to the connecting rod 1, such as a fixed rod or a fixed rod group.

In order to replace the limiting plate 41 conveniently, the limiting plate 41 can be detachably connected to the connecting rod 1, and a threaded hole can be formed at the joint of the limiting plate 41 and the connecting rod 1 by a technician in the field, so that the connecting rod 1 can be detachably connected to the limiting plate 41 by a screw. It should be noted that, those skilled in the art may connect the limit plate 41 and the connecting rod 1 in other ways within the scope of the present invention.

In this embodiment, the limiting mechanism 4 and the loading mechanism 2 are disposed on the transverse axis of the connecting rod 1. The annular part 31 is arranged perpendicular to the connecting rod 1, and the zero scale on the scale mark 312 of the annular part 31 is positioned on the transverse axis of the connecting rod 1.

For convenience of description, the axis of the semi-cylindrical structure 42 at one end of the limit plate 41 close to the square tenon joint 21 is denoted as axis a, and the axis of the positioning rod 321 is denoted as axis B. Since the positioning rod 321 can slide in the sliding groove 311, the distance between the axis a and the axis B is approximately equal to the distance between the axis a and the symmetry line of the sliding groove 311, and therefore, the distance between the axis a and the symmetry line of the sliding groove 311 is recorded as d, and the distance between the axis a and the axis B is approximately equal to d. The square tenon joint 21 is located at the midpoint of d, so that when the torque wrench 22 is loaded through the square tenon joint 21, the force applied to the axis a and the axis B can form a couple.

The invention can be used for detecting the tension of various types of belts 8 such as flat belts, V-ribbed belts and the like and the tension of flexible parts such as steel wire ropes, cables and the like, and has the characteristics of wide application range, strong universality and the like. It should be noted that the present invention may also be used for detecting the tension of flexible parts such as steel cables, etc., and the present invention is not limited thereto, and any alternative based on the essence of the present invention is within the protection scope of the present invention.

Example two:

the invention also provides a detection method, which is used for detecting the tension of the belt 8 by adopting the detection device for detecting the tension of the belt 8 in the first embodiment.

Specifically, the method comprises the following steps:

step 1: let the thickness of the belt 8 to be measured be t, let the preset flexibility value be s, move the positioning rod 321 in the sliding slot 311 to the s-t-2r position, and then tighten the nut 322 to counteract the structural size influence of the detection device and the belt 8, please refer to fig. 5 for the working principle, it should be noted that r is the radius of the positioning rod 321.

Step 2: the square tenon joint 21 is connected to the torque wrench 22, and the torque wrench 22 is made as perpendicular as possible to the connecting rod 1 to facilitate the application of pressure to the torque wrench 22.

And step 3: the connecting rod 1 is closely attached to the side of the belt 8, the axis A end of the limiting plate 41 is contacted with the bottom of the belt 8, and the locating rod 321 is contacted with the top of the belt 8. If the detection space is limited, a person skilled in the art can firstly place the connecting rod 1 at the belt detection position and then connect the connecting rod with the torque wrench 22;

and 4, step 4: through the slow loading moment of torque spanner 22, after limiting plate 41 and belt 8 bottom laminate completely, the moment value that shows on torque spanner 22 marks as M, belt 8 tensioning force F passes through the formulaTo solve the problem, it should be noted that, since the positioning rod 321 can slide in the sliding chute 311, the distance between the axis a and the axis B is approximately equal to the distance between the axis a and the symmetry line of the sliding chute 311, and the distance between the axis a and the symmetry line of the sliding chute 311 is denoted as d, so the distance between the axis a and the axis B is approximately equal to d.

If d/s >3, one skilled in the art can also use the formula F as M/s to simplify the approximate solution of the tension F of the belt 8, which is to be noted as the error of less than 5%.

It should be noted that, if the detection space of the belt is limited during the detection process, it cannot be observed whether the limiting plate 41 is completely attached to the bottom of the belt 8, and at this time, a person skilled in the art can rotate the torque wrench 22 slowly at a constant speed to continuously observe the torque value displayed on the torque wrench 22. When the torque wrench 22 is loaded at a constant speed, the displayed torque value should be correspondingly increased at a constant speed until the torque wrench 22 rotates to a certain angle, and the displayed torque value is increased at an accelerated speed, and at this time, the position of the torque wrench 22 before rotating to the angle is the position when the limiting plate 41 is completely attached to the bottom of the belt 8.

The belt tension detection device is simple in structure and convenient to operate, can detect the tension of the belt 8 in a narrow space by arranging the detection device on the belt 8, and has the advantages of wide application range, strong universality and the like. According to the detection method provided by the invention, the detection device is arranged on the belt 8 to detect the tension of the belt 8, the detection of the tension of the belt 8 can be completed under the condition that large space and force are not needed, the detection operation intensity can be reduced, the working efficiency is improved, and the detection method is suitable for detecting the tensions of various types and specifications of belts 8.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.