CN219715113U - Steel wire rope fatigue test device - Google Patents
Steel wire rope fatigue test device Download PDFInfo
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- CN219715113U CN219715113U CN202320427986.5U CN202320427986U CN219715113U CN 219715113 U CN219715113 U CN 219715113U CN 202320427986 U CN202320427986 U CN 202320427986U CN 219715113 U CN219715113 U CN 219715113U
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- wire rope
- fatigue test
- screw rod
- steel wire
- wheel
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 61
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 238000005452 bending Methods 0.000 claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a steel wire rope fatigue test device which comprises a frame, wherein a moving guide rail is arranged on the frame, a moving platform is arranged on the moving guide rail in a sliding manner, and two fixed wire passing wheels are symmetrically arranged on the moving platform in a left-right manner; two fatigue test wheels are symmetrically arranged on two sides of the frame, a mounting shaft is arranged in the center of each fatigue test wheel, and the two fatigue test wheels are fixed on a fixing frame on one side through a fixing piece; the front and rear of the mounting shaft are respectively sleeved with a front bending wheel and a rear bending wheel, and the fatigue test wheel is provided with a front and rear two rows of steel wire rope fixing bayonets; each fixed wire passing wheel is wound with a steel wire rope, and each fatigue test wheel is connected with a balancing weight through the steel wire rope. According to the utility model, fatigue tests of two railway ropes are simultaneously carried out, so that the test efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of steel wire rope performance testing equipment, in particular to a steel wire rope fatigue testing device.
Background
The fatigue life of 2 ten thousand times is a very important index of a wire rope for a high-speed railway (hereinafter referred to as a railway rope). The steel wire rope for the high-speed railway is required to be free of strand breakage after 2 ten thousands of times of fatigue detection, the whole rope breakage is more than or equal to 67.86KN, and the large-size steel wire rope is used together with pulleys in the use process, so that the direction change, the strength increase, the speed increase or the speed reduction and the like are realized.
At present, all the fatigue testing machines are used for testing the bending performance of railway ropes, and at present, the fatigue testing machines are used for carrying out fatigue tests on a group of steel wire ropes at a time in the market, and the fatigue testing machines mainly comprise a main body frame, an oil source, a counterweight, cooling and the like. Because parameters such as transmission efficiency and the like need to be measured, the existing fatigue testing machine is driven by an oil pump, and the oil source is driven: a grade lubricating oil is needed, oil leakage occurs in the running process due to sealing and other reasons, and the working cannot be performed when the temperature exceeds 50 ℃; in addition, the electromagnetic valve adopted is mostly an inlet piece and is easy to dirty, so that the electromagnetic valve does not work and needs to be cleaned frequently; and secondly, the oil source power mode has great environmental protection hidden trouble, and the equipment cost and the subsequent maintenance cost are very high.
Disclosure of Invention
The utility model aims to overcome the defects, and provides a steel wire rope fatigue test device which can realize the fatigue test of two railway ropes at a time and improve the test efficiency.
The purpose of the utility model is realized in the following way:
the steel wire rope fatigue test device comprises a frame, wherein a moving guide rail is arranged on the frame, a moving platform is arranged on the moving guide rail in a sliding manner, and two fixed wire passing wheels are symmetrically arranged on the moving platform in a left-right direction; two fatigue test wheels are symmetrically arranged on two sides of the frame, a mounting shaft is arranged in the center of each fatigue test wheel, and the two fatigue test wheels are fixed on a fixing frame on one side through a fixing piece; the front and rear of the mounting shaft are respectively sleeved with a front bending wheel and a rear bending wheel, and the fatigue test wheel is provided with a front and rear two rows of steel wire rope fixing bayonets; each fixed wire passing wheel is wound with a steel wire rope, one end of the steel wire rope is wound on the front bending wheel and then fixed on a steel wire rope fixing bayonet of the front row, and the other end of the steel wire rope is wound on the rear bending wheel and then fixed on a steel wire rope fixing bayonet of the rear row; each fatigue test wheel is connected with a balancing weight through a steel wire rope; and a ball screw is arranged below the moving guide rail, the moving platform is driven to slide on the moving guide rail through the ball screw, and the ball screw is connected with a motor.
Further, ball includes base, stiff end, supporting end, lead screw and screw nut, stiff end, screw nut and supporting end loop through the lead screw series arrangement, the end that the lead screw is close to the stiff end passes through the hold-in range and connects the motor.
Further, the screw rod is arranged below the moving guide rail, a nut seat is arranged on the screw rod nut, the nut seat is arranged on the moving guide rail in a sliding mode, and a moving platform is arranged on the nut seat.
Further, the fixed end and the support end are fixedly arranged at two ends of the upper surface of the base, the fixed end is sleeved on one end of the screw rod, which is positioned at the other end of the screw rod, the support end is sleeved on the screw rod, and the screw rod nut is screwed at the middle end of the screw rod.
Further, an encoder is connected to the end of the screw rod close to the supporting end and used for recording bending test times.
Further, a burr detection probe is arranged on the fixing piece at one side of the fatigue test wheel.
Further, a speed reducing probe and a reversing probe are respectively arranged on the left side and the right side of the moving guide rail.
Compared with the prior art, the utility model has the beneficial effects that:
the test platform adopts the design of the transmission screw rod and adopts an electric control mechanical transmission mode, overcomes the defect of oil source transmission, is symmetrically designed at two sides and is balanced in stress, reduces extra impact, can simultaneously perform fatigue tests of two railway ropes, and improves test efficiency; and the stability of the production process of the steel wire rope is improved, and the delivery yield of the steel wire rope is improved.
The fatigue test system has the online detection function of broken wires of the steel wire rope, and the broken wires are found to stop in time during the fatigue test, so that equipment damage caused by sudden breakage of the steel wire rope is avoided, and equipment or part damage caused by unexpected broken wires is reduced.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a top view of the present utility model.
Fig. 3 is a schematic structural view of the fatigue test wheel of the present utility model.
Wherein:
the device comprises a motion platform 1, a fixed wire passing wheel 2, a fatigue test wheel 3, a mounting shaft 31, a front bending wheel 32, a rear bending wheel 33, a balancing weight 4, a ball screw 5, a base 51, a fixed end 52, a supporting end 53, a screw rod 54, a screw rod nut 55, a motion guide rail 6, a motor 7, a synchronous belt 8, a burr detection probe 9, a speed reduction probe 10, a reversing probe 11, an encoder 12, a frame 13, an electric control cabinet 14, a steel wire rope fixing bayonet 15 and a steel wire rope 16.
Description of the embodiments
In order to better understand the technical solution of the present utility model, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present utility model, but are merely examples of embodiments that may be employed by the present utility model. It should be noted that, the description herein of the positional relationship of the components, such as the component a being located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Examples
Referring to fig. 1-3, fig. 1 depicts a schematic structural diagram of a wire rope fatigue test apparatus. As shown in the figure, the steel wire rope fatigue test device comprises a frame 13, wherein a ball screw 5 is arranged on the frame 13, and fatigue test wheels 3 are symmetrically arranged on two sides of the ball screw 5.
The ball screw 5 comprises a base 51, a fixed end 52, a supporting end 53, a screw rod 54 and a screw rod nut 55, wherein the fixed end 52, the screw rod nut 55 and the supporting end 53 are sequentially connected in series through the screw rod 54, the fixed end 52 and the supporting end 53 are fixedly arranged at two ends of the upper surface of the base 51, the fixed end 52 is sleeved on the screw rod 54 and positioned at one end of the screw rod 54, the supporting end 53 is sleeved on the screw rod 54 and positioned at the other end of the screw rod 54, and the screw rod nut 55 is screwed at the middle end of the screw rod 54;
the fixed end 52 comprises a bearing, a rear spacer bush and a bearing seat, the bearing seat is sleeved on the screw rod 54, the bearing and the rear spacer bush are arranged between the bearing seat and the screw rod 54, the rear spacer bush is positioned at one end close to the screw rod nut 55, and the bearing is positioned at one end far away from the screw rod nut 55;
the support end 53 comprises a bearing, a front spacer bush and a bearing seat, the bearing seat is sleeved on the screw rod 54, the bearing and the front spacer bush are arranged between the bearing seat and the screw rod 54, the front spacer bush is positioned at one end close to the screw rod nut 55, and the bearing is positioned at one end far away from the screw rod nut 55.
The end of the screw rod 54 close to the fixed end 52 is connected with a motor 7 through a synchronous belt 8, and the motor 7 is fixed on a motor support seat; the end of the screw rod 54 near the supporting end 53 is connected with an encoder 12 for recording the bending test times.
The upper part of the screw rod 54 is provided with two moving guide rails 6, the screw rod nut 55 is provided with a nut seat which is arranged on the moving guide rails 6 in a sliding manner, the nut seat is provided with a moving platform 1, and two fixed wire passing wheels 2 are symmetrically arranged on the moving platform 1.
The center of the fatigue test wheel 3 is provided with a mounting shaft 31 which is fixed on a fixing frame at one side through a fixing piece; the front bending wheel 32 and the rear bending wheel 33 are respectively sleeved on the front and the rear of the mounting shaft 31, and the front and the rear rows of steel wire rope fixing bayonets 15 are arranged on the fatigue test wheel 3.
Each fixed wire passing wheel 2 is wound with a steel wire rope 16, one end of the steel wire rope 16 is wound with n circles on the front bending wheel 32 and then is fixed on the steel wire rope fixing bayonet 15 of the front row, and the other end of the steel wire rope 16 is wound with n circles on the rear bending wheel 33 and then is fixed on the steel wire rope fixing bayonet 15 of the rear row.
Each fatigue test wheel 3 is connected with a balancing weight 4 through a steel wire rope 16, and the balancing weights 4 on the left side and the right side are the same and are used for balancing the two ends of the ball screw 5.
The fixing piece on one side of the fatigue test wheel 3 is provided with a burr detection probe 9 for detecting whether the steel wire rope 16 on the fatigue test wheel 3 has burrs or not.
The left side and the right side of the nut seat on the moving guide rail 6 are respectively provided with a speed reducing probe 10 and a reversing probe 11.
The burr detection probe 9, the deceleration probe 10 and the reversing probe 11 are all connected to an electronic control cabinet 14.
The utility model relates to a test method of a steel wire rope fatigue test device, which comprises the following steps:
based on the steel wire rope fatigue test device, a steel wire rope is wound on a left fixed wire passing wheel, and two ends of the steel wire rope are respectively clamped on steel wire rope fixing bayonets of the left fatigue test wheel; winding the other wire rope on a right fixed wire passing wheel, and respectively clamping two ends of the wire rope on a wire rope fixing bayonet of a right fatigue test wheel;
the fatigue test wheels on the left side and the right side are respectively wound with a steel wire rope, the bottom ends of the steel wire ropes are connected with a balancing weight, the weights of the left balancing weight and the right balancing weight are the same, and balancing weights with different weights are selected according to detection requirements and are generally 1-3 tons;
starting a motor, running a ball screw, driving a motion platform, setting the running speed of a steel wire rope to 8-9 m/min (or 3 times/min), and ensuring stable running in fatigue;
the motion platform drives the fixed wire passing wheels to move back and forth, the two fixed wire passing wheels respectively drive the steel wire ropes of the fixed wire passing wheels to move in a bending mode, when the motion platform moves rightwards, the steel wire ropes on the right fatigue test wheels are unfolded, the balancing weights of the fixed wire passing wheels fall down, due to the left-right stress balance principle, the balancing weights connected with the left fatigue test wheels naturally fall down due to gravity, the steel wire ropes on the left fatigue test wheels are unfolded, the steel wire ropes on the right fatigue test wheels are bent and wound, and the balancing weights of the fixed wire passing wheels rise to achieve stress balance;
the number of times of bending test is carried out by an encoder connected with the ball screw;
a burr detection probe on one side of the fatigue test wheel detects the steel wire rope, and the wire breakage is found to stop in time during the fatigue test.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (7)
1. A wire rope fatigue test device, its characterized in that: the device comprises a frame (13), wherein a moving guide rail (6) is arranged on the frame (13), a moving platform (1) is arranged on the moving guide rail (6) in a sliding manner, and two fixed wire passing wheels (2) are symmetrically arranged on the moving platform (1) left and right; two fatigue test wheels (3) are symmetrically arranged on two sides of the frame (13), a mounting shaft (31) is arranged in the center of each fatigue test wheel (3), and the two fatigue test wheels are fixed on a fixing frame on one side through a fixing piece; front bending wheels (32) and rear bending wheels (33) are respectively sleeved on the front and rear sides of the mounting shaft (31), and front and rear rows of steel wire rope fixing bayonets (15) are arranged on the fatigue test wheel (3); each fixed wire passing wheel (2) is wound with a steel wire rope (16), one end of the steel wire rope (16) is wound on a front bending wheel (32) and then fixed on a front row of steel wire rope fixing bayonets (15), and the other end of the steel wire rope (16) is wound on a rear bending wheel (33) and then fixed on a rear row of steel wire rope fixing bayonets (15); each fatigue test wheel (3) is connected with a balancing weight (4) through a steel wire rope (16); and a ball screw (5) is arranged below the moving guide rail (6), the moving platform (1) is driven to slide on the moving guide rail (6) through the ball screw (5), and the ball screw (5) is connected with a motor (7).
2. The wire rope fatigue test device according to claim 1, wherein: the ball screw (5) comprises a base (51), a fixed end (52), a supporting end (53), a screw rod (54) and a screw rod nut (55), wherein the fixed end (52), the screw rod nut (55) and the supporting end (53) are sequentially connected in series through the screw rod (54), and the end, close to the fixed end (52), of the screw rod (54) is connected with a motor (7) through a synchronous belt (8).
3. A wire rope fatigue test apparatus according to claim 2, wherein: the screw rod (54) is arranged below the moving guide rail (6), a nut seat is arranged on the screw rod nut (55), the nut seat is arranged on the moving guide rail (6) in a sliding mode, and a moving platform (1) is arranged on the nut seat.
4. A wire rope fatigue test apparatus according to claim 3, wherein: the fixed end (52) and the supporting end (53) are fixedly arranged at two ends of the upper surface of the base (51), the fixed end (52) is sleeved on the screw rod (54) and is positioned at one end of the screw rod (54), the supporting end (53) is sleeved on the screw rod (54) and is positioned at the other end of the screw rod (54), and the screw rod nut (55) is screwed at the middle end of the screw rod (54).
5. A wire rope fatigue test apparatus according to claim 2, wherein: the end of the screw rod (54) close to the supporting end (53) is connected with an encoder (12) for recording bending test times.
6. The wire rope fatigue test device according to claim 1, wherein: a burr detection probe (9) is arranged on the fixing piece on one side of the fatigue test wheel (3).
7. The wire rope fatigue test device according to claim 1, wherein: the left and right sides of the motion guide rail (6) are respectively provided with a deceleration probe (10) and a reversing probe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320427986.5U CN219715113U (en) | 2023-03-09 | 2023-03-09 | Steel wire rope fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320427986.5U CN219715113U (en) | 2023-03-09 | 2023-03-09 | Steel wire rope fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219715113U true CN219715113U (en) | 2023-09-19 |
Family
ID=87977860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320427986.5U Active CN219715113U (en) | 2023-03-09 | 2023-03-09 | Steel wire rope fatigue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219715113U (en) |
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2023
- 2023-03-09 CN CN202320427986.5U patent/CN219715113U/en active Active
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