CN108489840B - Assembled rope wear dynamic testing machine - Google Patents
Assembled rope wear dynamic testing machine Download PDFInfo
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- CN108489840B CN108489840B CN201810554968.7A CN201810554968A CN108489840B CN 108489840 B CN108489840 B CN 108489840B CN 201810554968 A CN201810554968 A CN 201810554968A CN 108489840 B CN108489840 B CN 108489840B
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- 238000012360 testing method Methods 0.000 title claims abstract description 108
- 238000005299 abrasion Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009661 fatigue test Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
An assembled rope wear dynamic testing machine comprises a base and a bracket, wherein the bracket is provided with one or more rope wear testing devices for testing and a test data monitoring system; the abrasion test device comprises a pulley block and a heavy hammer on a bracket, and a driving control mechanism of the pulley block and the heavy hammer; the pulley block comprises a first pulley and a fourth pulley; the first pulley, the third pulley and the fourth pulley are arranged on the same horizontal line in parallel at intervals, the second pulley is arranged right below the central connecting line of the first pulley and the third pulley, and the heavy hammer is arranged below the outer side of the fourth pulley and vertically reciprocates on the base panel; the driving control mechanism of the pulley block and the heavy hammer comprises a motor, a reversing mechanism and a rope traction wheel, wherein the rope traction wheel is connected with the reversing mechanism through a wheel shaft; the test data monitoring system comprises a computer and a camera; the rope head end is fixed on the plug connected with the rope traction wheel, and the tail end of the rope is fixedly connected with the upper end of the heavy hammer. The purpose of simple and convenient high-efficiency abrasion test on the rope is achieved, test data are accurate, and the rope is detachable and monitored in the whole process.
Description
Technical Field
The invention belongs to the technical field of textiles, and relates to a rope for braiding, in particular to an assembled rope wear dynamic testing machine.
Background
The rope abrasion tester is mainly used for testing abrasion conditions caused by mutual friction between ropes under the environments of different materials, different friction amplitudes and the like.
In practice, ropes can experience various frays in different environments, such as wear between ropes, wear of ropes on a vessel, and wear of ropes and machinery. In the long-term use process, the abrasion degree of the rope can be gradually severe, so that a certain hidden danger is brought to the safety performance of the rope, and in order to avoid the unnecessary loss, the rope is subjected to an abrasion fatigue performance test. In the fatigue test process of the rope, simplicity and high efficiency are required, and the test data are accurate in detail.
The existing rope abrasion test device cannot meet the standard requirement of abrasion test due to the fact that the structure of the existing rope abrasion test device is too simple, or is complex in structure and high in cost, and cannot be popularized.
In addition, a typical rope fatigue tester can only perform one set of tests at a time, which makes the efficiency of the whole test too low. On the other hand, many rope abrasion test devices cannot monitor the test process of the rope in real time, and the obtained test result data is often inaccurate.
For example, a rope ultra-high speed friction test machine mainly focuses on the friction and abrasion condition of a rope under an ultra-high speed state, but the rope ultra-high speed friction test machine cannot change the movement amplitude of the rope in a friction test, and can only perform one group of tests at a time. Therefore, the abrasion condition of the rope under different friction amplitudes cannot be obtained, and meanwhile, only one group of tests can be carried out at a time, so that the test efficiency is low.
Therefore, designing a rope abrasion tester with simple structure, low cost, high efficiency and accuracy is a necessary trend of rope manufacturing enterprises.
Disclosure of Invention
The invention aims to overcome the defects or the defects of the prior art, and provides an assembled rope abrasion tester, so that the purpose of carrying out simple and efficient abrasion test on a rope is realized, the efficiency is high, the test data is accurate, and the whole process can be monitored.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an assembled rope wear dynamic testing machine comprises a rope for testing; the rope abrasion testing machine is characterized by comprising a base and a bracket which is connected to a panel of the base in a positioning way, wherein one set of abrasion testing device and a testing data monitoring system of the rope for testing are positioned on the bracket;
The abrasion test device comprises a pulley block and a heavy hammer which are positioned and connected on the bracket, and a driving control mechanism of the pulley block and the heavy hammer;
The pulley block comprises first to fourth pulleys; the first pulley, the third pulley and the fourth pulley are arranged on the same horizontal line in parallel at intervals, the second pulley is arranged right below the central connecting line of the first pulley and the third pulley in the middle, and the heavy hammer is movably arranged below the outer side of the fourth pulley and can reciprocate up and down along the direction vertical to the base panel.
Above-mentioned assembled rope wearing and tearing dynamic testing machine, wherein:
the driving control mechanism of the pulley block and the heavy hammer comprises a motor, a reversing mechanism and a rope traction wheel, wherein the motor is connected to the bracket in a positioning way, and the rope traction wheel is movably arranged above the base and driven by the motor;
The rope traction wheel is movably connected with the reversing mechanism through an axle of the rope traction wheel, an included angle of 90 degrees is formed between the axis of an output shaft of the motor and the axis of the axle of the rope traction wheel, the rope traction wheel is movably arranged above the base in a suspended state, and the axis of the rope traction wheel is parallel to the top surface of the base.
The test data monitoring system comprises a computer positioned and connected to the bracket and a camera electrically connected with the computer; the camera is positioned and arranged on the bracket below the first pulley or the third pulley.
The rope traction wheel is a metal disc, a plurality of pin holes which are uniformly distributed along the radial direction of the disc surface of the rope traction wheel are formed in the disc surface of the rope traction wheel, the pin holes of the rope traction wheel are sequentially or alternately positioned and inserted with the same bolt, and the bolt is integrally provided with a first rope fixing ring;
The head end of the test rope is positioned and connected to the first rope fixing ring and sequentially wound on the outer edges of the first pulley, and the tail end of the test rope is positioned and connected to the second rope fixing ring positioned at the top end of the heavy hammer;
The motor drives the rope traction wheel to rotate through the reversing mechanism, and simultaneously drives the bolt to rotate on the disc surface of the rope traction wheel, one end of the bolt is connected to the first rope fixing ring in a positioning way, and the other end of the bolt is connected to the second rope fixing ring in a positioning way, and the test rope drives the heavy hammer to reciprocate up and down.
The test rope is wound from the outer edge outer side of the first pulley to the outer edge outer side of the second pulley, and then wound from the outer edge inner side of the second pulley to the outer edge inner side of the third pulley, so that the test rope section between the first pulley, the second pulley and the second pulley is in a movable cross fit state;
The rope traction wheel drives the bolt to rotate around the circle centers of a plurality of pin holes uniformly distributed along the radial direction of the bolt in sequence or at intervals, and then drives the heavy hammer to vertically ascend or descend relative to the top surface of the base, so that the wear test of different friction amplitudes of the movable cross-fit section of the rope is completed.
A slide way parallel to the axis of the heavy hammer is arranged on a bracket corresponding to the axial inner face of the heavy hammer, a connecting rod vertically and movably connected with the slide way is horizontally and fixedly arranged on the outer wall of the heavy hammer, and the inner end of the connecting rod is movably embedded on a guide rail longitudinally outside the slide way;
the lower end of the slideway is horizontally provided with a spring seat connected with the bracket, a compression spring is arranged between the lower end of the heavy hammer and the top surface of the spring seat, and the heavy hammer is driven by the rope traction wheel to elastically move up and down along the longitudinal direction of the slideway.
The support is of a left-right centering symmetrical structure, and comprises two upright posts, a cross beam, hanging arms and supporting plates, wherein the two upright posts are symmetrically distributed relative to the left side and the right side of the middle of the base panel, the cross beam is connected to the back of each upright post, the hanging arms are respectively connected to the two ends of the cross beam, and the supporting plates are horizontally connected between the two upright posts.
Two sets of wear test devices are symmetrically arranged on the left side and the right side of the front face of the bracket in the middle; the two sets of abrasion test devices are as follows:
the motor and the reversing mechanism are positioned and arranged on the top surface of the supporting plate in an axial vertical direction;
the wheel shaft of the rope traction wheel vertically penetrates through the axis of the rope traction wheel, and the end part of the wheel shaft is fixedly arranged on the center of the rope traction wheel;
the first pulley, the second pulley, the third pulley and the heavy hammer are movably arranged on the upright post of the bracket; the computer is positioned and connected to the cross beam of the bracket through the mounting seat; the camera is positioned and mounted on the upright below the first or third pulley.
Four sets of wear test devices are symmetrically arranged on the right and left sides of the front surface and the back surface of the bracket; among the four sets of wear test devices:
The left side or the right side of the front surface and the back surface of the wear test device are powered by the same motor, the wear test device is commutated by the same reversing mechanism, and the motor synchronously drives the wheel shafts coaxially connected with the front surface and the back surface of the reversing mechanism, so that the front rope traction wheel and the rear rope traction wheel are driven to synchronously rotate.
The reversing mechanism comprises a steering box.
Compared with the prior art, the invention has the following beneficial effects:
1. the whole abrasion testing machine can be disassembled, so that the equipment is convenient to transfer and transport;
2. the abrasion tester can simultaneously carry out abrasion tests of four groups of test ropes, so that the working efficiency is greatly improved;
3. Three pin holes are formed on the rope traction wheel, so that the rope friction can be changed in different magnitudes, the design conception is ingenious, and the test data are accurate;
4. the four pulleys in the pulley block are orderly arranged, so that different mutual friction is generated between the rope and the cross joint section of the rope along with the change of different amplitudes;
5. the dual functions of restraining the heavy hammer and guiding the heavy hammer are realized by arranging the sliding way of the up-and-down movement of the heavy hammer;
6. the monitoring system can record and analyze the abrasion condition of the cross joint section of the rope for the test along with the change of different amplitudes in real time, so that the test result is more accurate and reliable;
7. the whole assembled rope wear dynamic testing machine is simple in structure, low in cost and beneficial to popularization.
Drawings
FIG. 1 is a schematic perspective view of one embodiment of an assembled rope wear dynamic tester in accordance with the present invention;
FIG. 2 is a schematic view of the mirrored projection architecture of FIG. 1;
FIG. 3 is a schematic diagram of a front view of another embodiment of an assembled rope wear dynamic testing machine in accordance with the present invention;
FIG. 4 is a schematic diagram showing the assembly structure of the pulley block and the driving control mechanism of the pulley block and the weight shown in FIG. 3;
FIG. 5 is a schematic perspective view of the rope pulling wheel and latch assembly of FIG. 4;
FIG. 6 is a schematic diagram of the front view of FIG. 5;
FIG. 7 is a schematic diagram showing the assembly structure of the weight and the bracket shown in FIG. 3;
FIG. 8 is a schematic view of the assembly structure between the test data monitoring system and the bracket and pulley block of FIG. 3;
fig. 9 is a schematic top view of fig. 1-2.
Detailed Description
The technical scheme and beneficial effects of the present invention are further described and illustrated below with reference to the accompanying drawings.
Referring to FIGS. 1 and 2, in conjunction with FIGS. 3-9, an assembled rope wear tester in accordance with the present invention is shown, comprising a test rope; the key technical scheme is as follows:
As shown in fig. 1-3, the assembled rope wear dynamic testing machine comprises a base 1, a bracket 2 positioned and connected on a base panel 1A, a wear testing device 3 positioned and provided with one or more than one set of test ropes and a test data monitoring system 5;
the abrasion test device 3 comprises a pulley block 3A and a heavy hammer 3B which are positioned and connected on the bracket 2, and a driving control mechanism 4 of the pulley block 3A and the heavy hammer 3B.
As shown in fig. 2 to 6, the pulley block 3A includes first to fourth pulleys 3Aa, 3Ab, 3Ac, 3Ad; the first, third and fourth pulleys 3Aa, 3Ac and 3Ad are arranged on the same horizontal line in parallel at intervals, the second pulley 3Ab is arranged right below the central connecting line of the first and third pulleys 3Aa and 3Ac in the middle, and the heavy hammer 3B is movably arranged below the outer side of the fourth pulley 3Ad and can reciprocate up and down along the direction vertical to the base panel 1A.
As shown in fig. 4, the pulley block 3A and the weight 3B drive control mechanism 4 comprise a motor 4A positioned and connected on the bracket 2, a reversing mechanism 4B and a rope traction wheel 4C movably arranged above the base 1 and driven by the motor 4A;
the rope traction wheel 4C is movably connected with the reversing mechanism 4B through the wheel shaft 4Cb of the rope traction wheel 4C, the axis of the output shaft of the motor 4A and the axis of the wheel shaft 4Cb of the rope traction wheel 4C are arranged at an included angle of 90 degrees, the rope traction wheel 4C is movably arranged above the base 1 in a suspended state, and the axis of the rope traction wheel 4C is parallel to the top surface of the base 1.
As shown in fig. 8, the test data monitoring system 5 includes a computer 5A positioned and connected to the stand 2 and a camera 5B electrically connected to the computer 5A; the camera 5B is positioned on a bracket located below the first pulley 3Aa or the third pulley 3 Ac.
As shown in fig. 3-7, the rope traction wheel 4C is a metal disc, a plurality of pin holes 4Ca which are uniformly distributed along the radial direction of the rope traction wheel are formed in the disc surface of the rope traction wheel 4C, the pin holes 4Ca of the rope traction wheel are sequentially or alternately positioned and inserted with the same bolt 4D, and the bolt 4D is integrally provided with a first rope fixing ring 4Da;
the head end 6A of the rope for test is positioned and connected on the first rope fixing ring 4Da and sequentially wound on the outer edges of the first pulley 3Aa, the fourth pulley 3Ab, the pulley 3Ac and the pulley 3Ad, and the tail end 6B of the rope for test is positioned and connected on the second rope fixing ring 3Ba positioned at the top end of the heavy hammer 3B;
The motor 4A drives the rope traction wheel 4C to rotate through the reversing mechanism, meanwhile, the bolt 4D is driven to rotate on the disc surface of the rope traction wheel 4C, the bolt is connected to the first rope fixing ring 4Da through the head end 6A in a positioning mode, and the test rope 6 on the second rope fixing ring 3Ba is connected to the tail end 6B in a positioning mode to drive the heavy hammer 3B to reciprocate up and down.
The test rope 6 is wound from the outer edge outer side of the first pulley 3Aa to the outer edge outer side of the second pulley 3Ab, and then wound from the outer edge inner side of the second pulley 3Ab to the outer edge inner side of the third pulley 3Ac, so that the test rope positioned between the first pulley 3Aa, the second pulley 3Ab and the third pulley 3Ac is in a movable cross bonding state;
the rope traction wheel 4C drives the bolt 4D to rotate around the circle centers of a plurality of pin holes 4Ca which are uniformly distributed along the radial direction of the bolt in sequence or at intervals, and further drives the heavy hammer 3B to vertically ascend or descend relative to the top surface of the base 1, so that the abrasion tests of different friction amplitudes of the movable cross-fit section of the rope 6 for the test are completed.
A slide way 7 parallel to the axis of the heavy hammer 3B is arranged on the bracket 2 corresponding to the axial inner surface of the heavy hammer 3B, a connecting rod 3Bb vertically and movably connected with the slide way 7 is horizontally and fixedly arranged on the outer wall of the heavy hammer 3B, and the inner end of the connecting rod 3Bb is movably embedded on a guide rail 7a longitudinally outside the slide way 7;
The lower extreme level of slide 7 is equipped with the spring holder 8 that links to each other with support 2, is equipped with compression spring 9 between the lower extreme of weight 3B and the top surface of spring holder 8, and weight 3B is along the vertical elastic motion of slide 7 under the traction of the drive of rope traction wheel 4C.
As shown in fig. 3, the bracket 2 according to the present invention has a symmetrical structure in the middle, and includes two upright posts 2A symmetrically arranged on the left and right sides of the middle of the base panel 1A, a cross beam 2B connected to the back of the two upright posts 2A, hanging arms 2C respectively connected to both ends of the cross beam 2B, and a supporting plate 2D horizontally connected between the two upright posts 2A.
The support 2 is of a left-right centering symmetrical structure and comprises two upright posts 2A symmetrically distributed relative to the left side and the right side of the middle of the base panel 1A, a cross beam 2B connected to the back of the two upright posts, hanging arms 2C respectively connected to the two ends of the cross beam 2B and supporting plates 2D horizontally connected between the two upright posts 2A.
The reversing mechanism 4B according to the present invention includes a steering box.
Best mode for carrying out the invention 1
As shown in fig. 3, two sets of wear test devices are symmetrically arranged on the left side and the right side of the front surface of the bracket 2 in the middle; two sets of abrasion test devices:
the motor 4A and the reversing mechanism 4B are positioned and arranged on the top surface of the supporting plate 2D according to the axial vertical direction, so that the output shaft of the motor 4A is vertically arranged with the wheel shaft 4Cb of the rope traction wheel 4C;
The wheel axle 4Cb of the rope traction wheel is vertically penetrated along the axis of the rope traction wheel 4C, and the end part of the wheel axle 4Ca of the rope traction wheel is fixedly arranged on the center of the rope traction wheel 4C;
the first to third pulleys 3Aa, 3Ab, 3Ac are movably arranged on the upright post 2A of the bracket 2, the fourth pulley 3Ad and the heavy hammer 3B are movably arranged on the vertical arm 2C of the bracket 2, and the computer 4A is positioned and connected on the cross beam 2B of the bracket through a mounting seat; the camera 5B is positioned and mounted on the upright 2A below the first or third pulley 3Aa or 3 Ab. The mounting position of the camera 5B can just shoot the abrasion condition of the cross joint section of the rope 6 for test along with the change of different amplitudes.
Best mode for carrying out the invention 2
As shown in fig. 1, 2 and 9, four sets of wear test devices are symmetrically arranged on the left side and the right side of the front surface and the back surface of the bracket 2 in the middle; four sets of abrasion test devices:
The left or right abrasion test devices on the front and back sides are powered by the same motor 4A and are commutated by the same commutation mechanism 4B, and the same motor 4A drives a wheel shaft 4Cb coaxially connected with the front and back sides of the commutation mechanism 4B, so that the front rope traction wheel 4C and the rear rope traction wheel 4C are driven to synchronously rotate.
The main innovation point of the invention
1. Rope traction wheel
The rope traction wheel is a driving wheel of the whole pulley system, and the motor provides power to rotate the wheel. One circle of rope traction wheel rotates to complete one reciprocating motion of the rope. As shown in fig. 1-6, the rope traction wheel is a metal disc, three pin holes are uniformly distributed on the disc surface along the radius of the disc, the rope is fixed on the bolt, and the bolt is placed on the pin holes to draw the rope to move.
The three pin holes at different positions are designed because different environments of the rope are simulated, and different degrees of friction amplitude are needed. In order to achieve the purpose that the friction amplitude of the rope is different in different tests, three pin holes in different positions are designed on different radiuses, the bolts are respectively placed in the three different pin holes, and when the traction wheel rotates, the traction wheel can provide different motion amplitudes for the rope, so that the friction amplitude of the rope in a fatigue test is controlled.
2. Pulley combination
The pulley assembly as shown in fig. 4 is the main part of the whole wear testing machine, which allows the ropes to rub in the assembly. The rope is fixed on the rope traction wheel, the motor provides power, and then the rope winds around the pulley downwards and anticlockwise from the pulley, and winds on the pulley to transition to the pulley. Through pulley to pulley and then to pulley, the rope can carry out cross contact, and the rope can be rubbed with a certain amplitude of motion under the drive of the traction wheel, so that the abrasion test can be carried out. The structure has the advantages of simple structure and convenient operation. The abrasion condition of the rope can be clearly shown by a simple structure.
3. Heavy hammer
The heavy hammer is a tail structure of the abrasion testing machine and is used for tightening a rope for abrasion testing, so that the rope can have enough force in the friction process. The rope is connected to a second rope fixing ring on the heavy hammer by a pulley, and the slideway of the heavy hammer realizes the double functions of restraining and guiding the heavy hammer. In order to prevent serious collision in the falling process of the heavy hammer, a spring is arranged at the bottom of the heavy hammer and is used for buffering the impact in the falling process of the heavy hammer.
4. Monitoring system
The monitoring system is an intelligent part of the wear testing machine, as shown in fig. 8, the computer is directly fixed on a cross beam of the fatigue testing machine through a computer bracket, and the camera is fixed on a stand column of the fatigue testing machine and is aligned with a cross friction part of the rope. The monitoring system records the abrasion process of the rope in real time in the test process, records the data, and then the computer system detects and analyzes according to the recorded condition of the camera.
The above embodiments are provided for illustrating the present invention and not for limiting the present invention, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present invention, and thus all equivalent technical solutions should be defined by the claims.
Claims (4)
1. An assembled rope wear dynamic testing machine comprises a rope for testing; the dynamic rope wear testing machine is characterized by comprising a base and a bracket which is connected to a panel of the base in a positioning way, wherein more than one set of wear testing device and test data monitoring system for testing ropes are positioned on the bracket;
The abrasion test device comprises a pulley block and a heavy hammer which are positioned and connected on the bracket, and a driving control mechanism of the pulley block and the heavy hammer;
the pulley block comprises first to fourth pulleys; the first pulley, the third pulley and the fourth pulley are arranged on the same horizontal line in parallel at intervals, the second pulley is arranged right below the central connecting line of the first pulley and the third pulley in the middle, and the heavy hammer is movably arranged below the outer side of the fourth pulley and can reciprocate up and down along the direction vertical to the top surface of the base;
the driving control mechanism of the pulley block and the heavy hammer comprises a motor, a reversing mechanism and a rope traction wheel, wherein the motor is connected to the bracket in a positioning way, and the rope traction wheel is movably arranged above the base and driven by the motor;
The rope traction wheel is movably connected with the reversing mechanism through a wheel shaft of the rope traction wheel, the axis of an output shaft of the motor and the axis of the wheel shaft of the rope traction wheel are arranged at an included angle of 90 degrees, the rope traction wheel is movably arranged above the base in a suspended state, and the axis of the rope traction wheel is arranged in parallel with the top surface of the base;
The test data monitoring system comprises a computer positioned and connected to the bracket and a camera electrically connected with the computer; the camera is positioned and arranged on the bracket below the first pulley or the third pulley;
The rope traction wheel is a metal disc, a plurality of pin holes which are uniformly distributed along the radial direction of the disc surface of the rope traction wheel are formed in the disc surface of the rope traction wheel, the pin holes of the rope traction wheel are sequentially or alternately positioned and inserted with the same bolt, and the bolt is integrally provided with a first rope fixing ring;
The head end of the test rope is connected to the first rope fixing ring in a positioning way and sequentially wound on the outer edges of the first pulley, the tail end of the test rope is connected to the second rope fixing ring positioned at the top end of the heavy hammer in a positioning way;
The motor drives the rope traction wheel to rotate through the reversing mechanism, and simultaneously drives the bolt to rotate on the disc surface of the rope traction wheel, the bolt is connected to the first rope fixing ring through the head end positioning, and the test rope with the tail end positioned and connected to the second rope fixing ring drives the heavy hammer to reciprocate up and down;
The test rope is wound from the outer edge outer side of the first pulley to the outer edge outer side of the second pulley, and then wound from the outer edge inner side of the second pulley to the outer edge inner side of the third pulley, so that the test rope section between the first pulley, the second pulley and the second pulley is in a movable cross fit state;
The rope traction wheel drives the bolt to rotate around the circle centers of a plurality of pin holes uniformly distributed along the radial direction of the bolt in sequence or at intervals, and further drives the heavy hammer to vertically ascend or descend relative to the top surface of the base, so that the abrasion test of the movable cross-fit section of the rope with different friction amplitudes is completed;
a slide way parallel to the axis of the heavy hammer is arranged on a bracket corresponding to the axial inner face of the heavy hammer, a connecting rod vertically and movably connected with the slide way is horizontally and fixedly arranged on the outer wall of the heavy hammer, and the inner end of the connecting rod is movably embedded on a guide rail longitudinally outside the slide way;
The lower end of the slideway is horizontally provided with a spring seat connected with the bracket, a compression spring is arranged between the lower end of the heavy hammer and the top surface of the spring seat, and the heavy hammer is driven by the rope traction wheel to elastically move up and down along the longitudinal direction of the slideway;
The support is of a left-right centering symmetrical structure, and comprises two upright posts, a cross beam, hanging arms and supporting plates, wherein the two upright posts are symmetrically distributed relative to the left side and the right side of the middle of the base panel, the cross beam is connected to the back of each upright post, the hanging arms are respectively connected to the two ends of the cross beam, and the supporting plates are horizontally connected between the two upright posts.
2. The assembled rope wear dynamic testing machine according to claim 1, wherein two sets of wear testing devices are symmetrically arranged on the left side and the right side of the front face of the bracket in a centering manner; the two sets of abrasion test devices are as follows:
the motor and the reversing mechanism are positioned and arranged on the top surface of the supporting plate in an axial vertical direction;
the wheel shaft of the rope traction wheel vertically penetrates through the axis of the rope traction wheel, and the end part of the wheel shaft is fixedly arranged on the center of the rope traction wheel;
the first pulley, the second pulley, the third pulley and the heavy hammer are movably arranged on the upright post of the bracket; the computer is positioned and connected to the cross beam of the bracket through the mounting seat; the camera is positioned and mounted on the upright below the first or third pulley.
3. The assembled rope wear dynamic testing machine according to claim 1, wherein four sets of wear testing devices are symmetrically arranged on the right and left centers of the front surface and the back surface of the bracket; among the four sets of wear test devices:
The left side or the right side of the front surface and the back surface of the wear test device are powered by the same motor, the wear test device is commutated by the same reversing mechanism, and the motor synchronously drives the wheel shafts coaxially connected with the front surface and the back surface of the reversing mechanism, so that the front rope traction wheel and the rear rope traction wheel are driven to synchronously rotate.
4. A modular rope wear dynamic tester as claimed in claim 3 in which the reversing mechanism comprises a steering box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554968.7A CN108489840B (en) | 2018-06-01 | 2018-06-01 | Assembled rope wear dynamic testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554968.7A CN108489840B (en) | 2018-06-01 | 2018-06-01 | Assembled rope wear dynamic testing machine |
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| Publication Number | Publication Date |
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| CN108489840A CN108489840A (en) | 2018-09-04 |
| CN108489840B true CN108489840B (en) | 2024-05-24 |
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| CN201810554968.7A Active CN108489840B (en) | 2018-06-01 | 2018-06-01 | Assembled rope wear dynamic testing machine |
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