CN116296935A - Steel wire rope fatigue test system for high-speed railway and test method thereof - Google Patents
Steel wire rope fatigue test system for high-speed railway and test method thereof Download PDFInfo
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- CN116296935A CN116296935A CN202310219438.8A CN202310219438A CN116296935A CN 116296935 A CN116296935 A CN 116296935A CN 202310219438 A CN202310219438 A CN 202310219438A CN 116296935 A CN116296935 A CN 116296935A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 238000009661 fatigue test Methods 0.000 title claims abstract description 80
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000005452 bending Methods 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims description 24
- 125000006850 spacer group Chemical group 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral 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
- 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
- 230000009466 transformation Effects 0.000 description 1
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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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
- G01N3/02—Details
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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
- G01N3/02—Details
- G01N3/04—Chucks
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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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a steel wire rope fatigue test system for a high-speed railway and a test method thereof, and the system comprises a rack, wherein a ball screw is arranged on the rack, fatigue test wheels are symmetrically arranged on two sides of the ball screw, two moving guide rails are arranged above the ball screw, a moving platform is arranged on the moving guide rails, and two fixed wire passing wheels are symmetrically arranged on the moving platform left and right; 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. According to the invention, fatigue tests of two railway ropes are simultaneously carried out, so that the test efficiency is improved.
Description
Technical Field
The invention relates to the technical field of steel wire rope performance testing equipment, in particular to a steel wire rope fatigue testing system for a high-speed railway and a testing method thereof.
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 invention aims to overcome the defects and provide a steel wire rope fatigue test system for a high-speed railway and a test method thereof, which realize the fatigue test of two railway ropes at a time and improve the test efficiency.
The purpose of the invention is realized in the following way:
the steel wire rope fatigue test system for the high-speed railway comprises a rack, wherein a ball screw is arranged on the rack, and fatigue test wheels are symmetrically arranged on two sides of the ball screw; the ball screw comprises a base, a fixed end, a supporting end, a screw rod and a screw rod nut, wherein the fixed end, the screw rod nut and the supporting end are sequentially connected in series through the screw rod, the end, close to the fixed end, of the screw rod is connected with a motor through a synchronous belt, and the ball screw is driven by the motor;
the upper part of the screw rod is provided with two moving guide rails, the screw rod nut is provided with a nut seat, the nut seat is arranged on the moving guide rails in a sliding way, the nut seat is provided with a moving platform, and the moving platform is provided with two fixed wire passing wheels in bilateral symmetry; the center of the fatigue test wheel is provided with a mounting shaft which is fixed on a fixing frame at 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 the balancing weights at the left side and the right side are the same and are used for balancing the two ends of the ball screw.
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, the fixed end comprises a bearing, a rear spacer bush and a bearing seat, the bearing seat is sleeved on the screw rod, the bearing and the rear spacer bush are arranged between the bearing seat and the screw rod, the rear spacer bush is positioned at one end close to the screw rod nut, and the bearing is positioned at one end far away from the screw rod nut.
Further, the support end comprises a bearing, a front spacer bush and a bearing seat, the bearing seat is sleeved on the screw rod, the bearing and the front spacer bush are arranged between the bearing seat and the screw rod, the front spacer bush is positioned at one end close to the screw rod nut, and the bearing is positioned at one end far away from the screw rod nut.
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 and used for detecting whether burrs exist on the steel wire rope on the fatigue test wheel or not.
Further, a speed reducing probe and a reversing probe are respectively arranged on the left side and the right side of the nut seat on the moving guide rail.
Further, the burr detection probe, the speed reduction probe and the reversing probe are all connected to the electric control cabinet.
A test method of a steel wire rope fatigue test system for a high-speed railway comprises the following steps:
winding a steel wire rope on a left fixed wire passing wheel, and respectively clamping two ends of the steel wire rope on a steel wire rope fixing bayonet of a 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 left and right fatigue test wheels are respectively wound with a steel wire rope, the bottom ends of the steel wire rope are connected with a balancing weight, the weights of the left and right balancing weights are the same, and balancing weights with different weights are selected according to detection requirements;
starting a motor, and driving a ball screw by a synchronous belt to drive a motion platform;
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 steel wire is detected to have the burr defect and is stopped in time during the fatigue test.
Further, the running speed of the steel wire rope is set to be 8-9 m/min, and the steel wire rope runs stably in fatigue.
Compared with the prior art, the invention 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 groups of 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 burrs 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 breakage of the steel wire rope is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic structural view of the fatigue test wheel of the present invention.
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 invention, 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 invention, but are merely examples of embodiments that may be employed by the present invention. 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 system for a high-speed railway. As shown in the figure, the steel wire rope fatigue test system for the high-speed railway 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 invention relates to a test method of a steel wire rope fatigue test system for a high-speed railway, which comprises the following steps:
based on the steel wire rope fatigue test system for the high-speed railway, a steel wire rope is wound on the 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, driving a ball screw by a synchronous belt, 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 invention, and the protection scope of the present invention is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the invention.
Claims (10)
1. A wire rope fatigue test system for a high-speed railway is characterized in that: the 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 end, close to the fixed end (52), of the screw rod (54) is connected with a motor (7) through a synchronous belt (8), and the motor (7) drives the ball screw (5);
two moving guide rails (6) are arranged above the screw rod (54), a nut seat is arranged on the screw rod nut (55), the nut seat is arranged on the moving guide rails (6) in a sliding mode, a moving platform (1) is arranged on the nut seat, and two fixed wire passing wheels (2) are symmetrically arranged on the moving platform (1) in a left-right mode; 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; 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 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).
2. The steel wire rope fatigue test system for high-speed railway according to claim 1, 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).
3. The steel wire rope fatigue test system for high-speed railway according to claim 1, wherein: 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 located at one end close to the screw rod nut (55), and the bearing is located at one end far away from the screw rod nut (55).
4. The steel wire rope fatigue test system for high-speed railway according to claim 1, wherein: 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 located at one end close to the screw rod nut (55), and the bearing is located at one end far away from the screw rod nut (55).
5. The steel wire rope fatigue test system for high-speed railway according to claim 1, 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 steel wire rope fatigue test system for high-speed railway according to claim 1, wherein: a burr detection probe (9) is arranged on a fixing piece on one side of the fatigue test wheel (3) and used for detecting whether a steel wire rope (16) on the fatigue test wheel (3) has burrs or not.
7. The steel wire rope fatigue test system for high-speed railway according to claim 1, wherein: 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).
8. The steel wire rope fatigue test system for the high-speed railway according to claim 7, wherein: the burr detection probe (9), the speed reduction probe (10) and the reversing probe (11) are all connected to the electric control cabinet (14).
9. A test method of a wire rope fatigue test system for a high-speed railway according to claim 1, characterized in that it comprises the following steps:
winding a steel wire rope on a left fixed wire passing wheel, and respectively clamping two ends of the steel wire rope on a steel wire rope fixing bayonet of a 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 left and right fatigue test wheels are respectively wound with a steel wire rope, the bottom ends of the steel wire rope are connected with a balancing weight, the weights of the left and right balancing weights are the same, and balancing weights with different weights are selected according to detection requirements;
starting a motor, and driving a ball screw by a synchronous belt to drive a motion platform;
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.
10. The test method of the steel wire rope fatigue test system for the high-speed railway according to claim 9, wherein the test method comprises the following steps of: the running speed of the steel wire rope is set to 8-9 m/min, and the steel wire rope runs stably in fatigue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310219438.8A CN116296935A (en) | 2023-03-09 | 2023-03-09 | Steel wire rope fatigue test system for high-speed railway and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310219438.8A CN116296935A (en) | 2023-03-09 | 2023-03-09 | Steel wire rope fatigue test system for high-speed railway and test method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116296935A true CN116296935A (en) | 2023-06-23 |
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ID=86831963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310219438.8A Pending CN116296935A (en) | 2023-03-09 | 2023-03-09 | Steel wire rope fatigue test system for high-speed railway and test method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116296935A (en) |
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2023
- 2023-03-09 CN CN202310219438.8A patent/CN116296935A/en active Pending
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