CN219302175U - Wire rope testing arrangement - Google Patents
Wire rope testing arrangement Download PDFInfo
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- CN219302175U CN219302175U CN202223367374.6U CN202223367374U CN219302175U CN 219302175 U CN219302175 U CN 219302175U CN 202223367374 U CN202223367374 U CN 202223367374U CN 219302175 U CN219302175 U CN 219302175U
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- steel wire
- wire rope
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 238000004804 winding Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 13
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a steel wire rope testing device which comprises a fixed block, a fixed component for fixing the end part of a steel wire rope and a height indicating plate, wherein a fixed rod is arranged on the fixed block; the end part of the steel wire wheel, which is away from the fixed block, is provided with a load rod for providing torque for the steel wire wheel, the end part of the load rod is connected with the steel wire wheel, and the side wall of the load rod is provided with a load object; the end of the load rod, which is away from the wire wheel, is provided with a laser indicating device for measuring the height through a height indicating plate. The utility model solves the problem of inaccurate measurement caused by the difficulty in introducing the influence of the pulley on the steel wire when the traditional tension tester measures the tension, and has low cost and wide application range.
Description
Technical Field
The utility model belongs to the technical field of steel wire rope testing, and relates to a steel wire rope testing device.
Background
The wire rope transmission can carry out long-distance direction-changing transmission, and compared with the traditional transmission mechanism, such as a gear rack, a synchronous belt and the like, the wire rope transmission has the advantages of direction changing, small occupied space, flexible arrangement, low cost and the like; however, the wire rope transmission has some disadvantages, such as obvious elastic deformation after the wire is loaded, creep after long-time loading, and the like. Therefore, in the occasion of using the steel wire rope transmission, the tensile strength and the ductility of the steel wire rope need to be correspondingly tested.
The wire rope in the wire rope transmission is wound on the pulley generally, the pulley enables the wire rope to be released or contracted through forward and reverse rotation, when the wire rope is subjected to tension, the released wire rope can be prolonged under the action of the tension, the wound part of the wire rope on the pulley can also be influenced by the tension, but the tension applied to the wire rope is not equal to the tension applied to the released wire rope, and the prolonged wire rope is not only from the elastic deformation or plastic expansion of the wire rope, but also can be influenced by the winding mode of the wire rope on the pulley.
The conventional tension test uses a special tensile machine to measure the tension and length curve of a straight-line section steel wire rope, so as to obtain the elastic deformation and plastic expansion of one end of the steel wire rope under a specific tension, but the test mode needs special equipment, has higher cost and cannot test the influence of the tension on the steel wire rope wound on a pulley.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a steel wire rope testing device which solves the problem of inaccurate measurement caused by the fact that a traditional tension testing machine is difficult to introduce the influence of a pulley on a steel wire when measuring tension.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the steel wire rope testing device comprises a fixed block, a fixed assembly and a height indicating plate, wherein the fixed assembly is used for fixing the end part of a steel wire rope, a fixed rod is arranged on the fixed block, the end part of the fixed rod is connected with the fixed block, a steel wire wheel used for winding the steel wire rope is sleeved on the fixed rod, and the inner wall of the steel wire wheel is rotationally connected with the side wall of the fixed rod; the end part of the steel wire wheel, which is away from the fixed block, is provided with a load rod for providing torque for the steel wire wheel, the end part of the load rod is connected with the steel wire wheel, and the side wall of the load rod is provided with a load object; the end of the load rod, which is away from the wire wheel, is provided with a laser indicating device for measuring the height through a height indicating plate.
Optionally, the fixed subassembly includes fixed plate and bolt, and the bolt runs through the fixed plate, with fixed plate threaded connection, and the head of bolt meets with wire rope's tip.
Optionally, the bolt is the loose joint bolt, fixed subassembly still includes the nut, and the nut is located the fixed plate and is kept away from wire rope's lateral part, nut and loose joint bolt threaded connection.
Optionally, a bearing is arranged between the fixing rod and the steel wire wheel, and the steel wire wheel is rotationally connected with the fixing rod through the bearing.
Optionally, the load rod is provided with a plurality of mounting holes for mounting the load.
Optionally, the tip of dead lever runs through the fixed block, the fixed block deviates from the lateral part of load pole and is equipped with lock nut, lock nut and the tip threaded connection of dead lever.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a steel wire rope testing device, wherein a fixing assembly is used for fixing the end part of a steel wire rope, and a fixing block and a fixing rod are convenient for the stable rotation of a steel wire wheel; the length of the arm of force of the steel wire wheel is adjusted by adjusting the position of the load object on the load rod, so that the torque received by the steel wire wheel is adjusted; the height indicating plate is convenient for displaying the height change of the laser indicating equipment, so that the change of the rotation angle of the load rod is obtained, the elongation of the steel wire rope can be obtained by combining the diameter of the steel wire wheel, and the elongation of the steel wire rope can be obtained by combining the total length of the steel wire rope;
the utility model designs a measuring device with simple structure, low cost and adjustable load, the winding part of the steel wire rope on the pulley is also added into the test, and the relation between the pulling force and the extension amount of the steel wire rope in a real rope transmission structure can be measured, wherein the relation comprises a straight line section, a winding section, a guide section and a fixed end of the steel wire rope; the measurement result can be used for accurately analyzing the transmission effect of the steel wire rope transmission in the structure, and has important significance for the pre-grinding of the rope transmission mechanism and the model selection design of the transmission mechanism.
Drawings
FIG. 1 is a schematic diagram of a wire rope testing device according to the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a cross-sectional view of the fixing block of fig. 1.
In the figure: 1. a winding assembly; 11. a fixed block; 12. a wire wheel; 13. a wire rope; 141. a fixed rod; 142. a bearing; 15. a lock nut; 2. a fixing assembly; 21. a fixing plate; 22. a loose joint bolt; 23. a nut; 3. a load bar; 31. a mounting hole; 4. a laser pointing device; 5. a height indicating plate.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
Example 1
As shown in fig. 1 to 3, a wire rope testing device comprises a winding assembly 1, a fixing assembly 2 for fixing the end part of a wire rope 13 and a height indicating plate 5, wherein the winding assembly 1 comprises a fixed block 11 and a fixed rod 141, the end part of the fixed rod 141 is connected with the fixed block 11, the fixed rod 141 is sleeved with a wire wheel 12 for winding the wire rope 13, and the inner wall of the wire wheel 12 is rotatably connected with the side wall of the fixed rod 141;
the end part of the steel wire wheel 12, which is away from the fixed block 11, is provided with a load rod 3 for providing torque for the steel wire wheel 12, the end part of the load rod 3 is connected with the end part of the steel wire wheel 12, and the side wall of the load rod 3 is provided with a load; the end of the load bar 3 facing away from the wire wheel 12 is provided with a laser pointer device 4 for measuring the height by means of a height indicator plate 5, which laser pointer device 4 can be replaced by other visible line light sources.
The fixing assembly 2 comprises a fixing plate 21, a nut 23 and a loose joint bolt 22, wherein the loose joint bolt 22 penetrates through the fixing plate 21, the head of the loose joint bolt 22 is connected with the end part of the steel wire rope, the nut 23 is arranged on the side part, away from the steel wire rope 13, of the fixing plate 21, and the nut 23 is in threaded connection with the loose joint bolt 22; by screwing the nut 23 on the union bolt 22, the length of the union bolt 22 on the side of the wire rope 13 can be adjusted, thereby adjusting the position of the wire rope 13 and the inclination of the load bar 3.
Example two
As shown in fig. 1 to 3, unlike the first embodiment, a bearing 142 is provided between the fixing rod 141 and the wire wheel 12, an outer ring of the bearing 142 is fixedly connected with an inner hole of the wire wheel 12, the bearing 142 is fixedly connected with a rod wall of the fixing rod 141, and the wire wheel 12 is rotatably connected with the fixing rod 141 through the bearing 142;
the end of the fixing rod 141 penetrates through the fixing block 11, a locking nut 15 is arranged on the side part, away from the load rod 3, of the fixing block 11, and the locking nut 15 is in threaded connection with the end of the fixing rod 141.
The load rod 3 is provided with a plurality of mounting holes 31 for mounting the load, and the mounting holes 31 are convenient for mounting the load, and apply adjustable load torque, such as by mounting weights on different hole sites.
If desired, a guide pulley may be incorporated between the wire wheel 12 and the loose-joint bolt 22 to take into account the extension of the guide portion in the actual wire rope drive.
In the application of the embodiment, after the load bar 3 is mounted on the wire wheel 12, the adjusting nut 23 enables the wire rope to be contracted or released so that the load bar 3 reaches the level; then, a laser pointer device 4 is fixed to the end of the load bar 3, and the position of the laser pointer device 4 irradiated on the height indicator plate 5 is checked and marked x1.
The hooked weight with the weight of m is hung on a load rod mounting hole 31 on a load rod 3, the load rod is hung on the hole 31 to the steel wire wheel 12, the position x2 of the laser indicating device 4 irradiated on the height indicating plate 5 is marked, the load torque ml generated by the hooked weight on the steel wire wheel 12 is calculated, the distance L between the height indicating plate 5 and the steel wire wheel 12 and the distance (x 2-x 1) between the two laser indicating positions are measured, and the tangent value of the loaded load rod relative to the horizontal plane dip angle can be calculated through a trigonometric function
) Further, the load lever is obtainedThe rotation angle alpha (unit deg.) with respect to the wire wheel 12; the product of the rotation angle alpha and the winding radius R of the steel wire wheel 12 is the elongation of the steel wire rope after the weight is mounted: 2 pi alpha R/360.
The hooked weight is removed, the position x3 of the laser indicating device 4 irradiated on the height indicating plate 5 is marked, and the tangent value of the inclination angle of the load rod relative to the horizontal plane after the unloading can be calculated through a trigonometric function
) Further, the rotation angle β (unit °) of the load lever relative to the wire wheel 12 is obtained, and the product of the rotation angle β and the winding radius R of the wire wheel 12 is the plastic deformation of the wire rope after the weight is mounted: 2 pi beta R/360.
This part of the plastic deformation is partly the plastic deformation of the wire rope itself and partly originates from the winding clearance of the wire rope on the wire wheel 12, so that it is difficult to measure the actual elongation in the wire rope transmission using a conventional linear tensioner.
The creep characteristics of the steel wire rope can also be measured by means of long-term suspension of the load of the weight.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (6)
1. The utility model provides a wire rope testing arrangement which characterized in that: the fixing device comprises a fixing block, a fixing assembly and a height indicating plate, wherein the fixing assembly is used for fixing the end part of a steel wire rope, a fixing rod is arranged on the fixing block, the end part of the fixing rod is connected with the fixing block, a steel wire wheel used for winding the steel wire rope is sleeved on the fixing rod, and the inner wall of the steel wire wheel is rotationally connected with the side wall of the fixing rod; the end part of the steel wire wheel, which is away from the fixed block, is provided with a load rod for providing torque for the steel wire wheel, the end part of the load rod is connected with the steel wire wheel, and the side wall of the load rod is provided with a load object; the end of the load rod, which is away from the wire wheel, is provided with a laser indicating device for measuring the height through a height indicating plate.
2. A wire rope testing device according to claim 1, wherein: the fixing assembly comprises a fixing plate and a bolt, the bolt penetrates through the fixing plate, and the head of the bolt is connected with the end part of the steel wire rope.
3. A wire rope testing device according to claim 2, wherein: the bolt is the loose joint bolt, fixed subassembly still includes the nut, and the nut is located the lateral part that the fixed plate deviates from wire rope, nut and loose joint bolt threaded connection.
4. A wire rope testing device according to claim 1, wherein: and a bearing is arranged between the fixed rod and the steel wire wheel, and the steel wire wheel is rotationally connected with the fixed rod through the bearing.
5. A wire rope testing device according to claim 1, wherein: the load rod is provided with a plurality of mounting holes for mounting the load.
6. A wire rope testing device according to claim 1, wherein: the end of the fixed rod penetrates through the fixed block, a locking nut is arranged on the side part, away from the load rod, of the fixed block, and the locking nut is in threaded connection with the end of the fixed rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367374.6U CN219302175U (en) | 2022-12-15 | 2022-12-15 | Wire rope testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223367374.6U CN219302175U (en) | 2022-12-15 | 2022-12-15 | Wire rope testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219302175U true CN219302175U (en) | 2023-07-04 |
Family
ID=86983381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223367374.6U Active CN219302175U (en) | 2022-12-15 | 2022-12-15 | Wire rope testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219302175U (en) |
-
2022
- 2022-12-15 CN CN202223367374.6U patent/CN219302175U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20240320 Address after: Room 520, Building 1, Artificial Intelligence Industrial Park, No. 266 Chuangyan Road, Qilin Technology Innovation Park, Nanjing, Jiangsu Province, 210000 Patentee after: Zhongke Yitong Technology (Nanjing) Co.,Ltd. Country or region after: Zhong Guo Address before: Floor 8, Building 8, Qilin Artificial Intelligence Industrial Park, 266 Chuangyan Road, Jiangning District, Nanjing, Jiangsu Province, 211135 Patentee before: Zhongke Nanjing Intelligent Technology Research Institute Country or region before: Zhong Guo |