CN214831479U - Steel wire rope post-deformation device with multiple layers and multiple rows of arrangement and spatial dislocation - Google Patents
Steel wire rope post-deformation device with multiple layers and multiple rows of arrangement and spatial dislocation Download PDFInfo
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- CN214831479U CN214831479U CN202022266493.7U CN202022266493U CN214831479U CN 214831479 U CN214831479 U CN 214831479U CN 202022266493 U CN202022266493 U CN 202022266493U CN 214831479 U CN214831479 U CN 214831479U
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Abstract
The utility model relates to a belong to the flexible technical field of wire rope, refer in particular to a multilayer multiseriate is arranged, space dislocation's wire rope after warp device. The device comprises a winding drum array arranged in multiple rows and multiple columns, each layer of each column in the winding drum array is composed of a group of winding drums, each group of winding drums in the device comprises a driving parallel winding drum and a driven inclined winding drum, and the dislocation angle of the axes of the two winding drums in the space is theta. Due to the existence of the dislocation angle theta, the folded part of the steel wire rope on each rope groove rotates by the angle theta, the purpose of folding the whole circumference of the steel wire rope is finally achieved, and the flexibility of the steel wire rope is comprehensively improved.
Description
Technical Field
The utility model belongs to the technical field of wire rope is pliable and tough, stress relief and pliability hoisting device after mainly relating to wire rope manufacturing and wire rope closes the rope. Wire rope often is used for drawing and bears, and the wide application is in fields such as coal, metallurgy, petroleum, chemical industry, transportation, high-rise building, draw bridge, the utility model relates to a multilayer multiseriate is arranged, the wire rope rear deformation device of space dislocation for eliminate or reduce the stress after wire rope manufacturing and wire rope closes the rope, thereby promote wire rope's pliability.
Background
Steel wire ropes are usually strands formed by twisting one or more layers of a certain shape and number of wires into a helix, and then combining the strands into a rope. The steel wire rope manufacturing process usually comprises three basic procedures of coiling, stranding and stranding, after the steel wire rope stranding is finished, the steel wire rope is required to be coiled into a steel wire rope coil, and the steel wire are extruded mutually to have larger plastic deformation, so that the steel wire rope has certain stress inside the steel wire rope after the stranding, the flexibility of the steel wire rope is poor, and the steel wire rope is difficult to bend and curl on a winding drum; in addition, the steel cord often needs to be bent during use, and the stress present inside the steel cord also affects the fatigue strength of the steel cord. Generally, the post-deformation method of the steel cord can well eliminate or reduce the stress in the steel cord and can also effectively improve the flexibility of the steel cord. At present, a common steel wire rope flexibility method is realized by locally and repeatedly folding a steel wire rope, but the method cannot realize flexibility of the whole circumference of the steel wire rope due to the limitation of local folding.
In the chinese utility model "a steel wire rope flexibility hoisting device" (patent No. ZL 201520085105.1; granted No. CN 204455690U), a steel wire rope flexibility hoisting device is proposed, which is provided with a transverse fixing plate and a longitudinal fixing plate, wherein a steel wire rope passes through a row of transverse fixing plates and a row of longitudinal fixing plates, so that the steel wire rope is folded up and down, left and right, and the steel wire rope is folded up section by section, thereby hoisting the flexibility of the steel wire rope. But this utility model in can only carry out the bending to wire rope section by section, so its pliable and tough method influences great to wire rope's outside steel wire, and the effect is not obvious to the pliable and tough effect of wire rope's inside strand, and can not realize the pliability to the whole circumference of wire rope.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an eliminate or reduce the stress in the wire rope, improve wire rope's stretch-proofing, fatigue resistance, impact toughness, promote wire rope's pliability comprehensively, the realization is to the pliable and tough effect of the whole circumference of wire rope, a multilayer multiseriate array is arranged, the wire rope back deformation device of space dislocation is proposed, every group reel in the device comprises a initiative parallel reel and a driven slope reel, the dislocation angle of the axis of two reels in the space is theta. Due to the existence of the dislocation angle theta, the folded part of the steel wire rope on each rope groove rotates by the angle theta, and finally the purpose of folding the whole circumference of the steel wire rope is achieved.
A multi-layer and multi-column arranged and spatially staggered steel wire rope post-deformation device is characterized by comprising a winding drum array arranged in multiple rows and multiple columns, each layer of each column in the winding drum array consists of a group of winding drums, each group of winding drums consists of a parallel assembly and an inclined assembly, the parallel assembly is positioned on the left side, the inclined assembly is positioned on the right side, the parallel assembly and the inclined assembly are different in that the axis of the parallel assembly is parallel to the central line of the long side of a box body, the inclined assembly and the central line of the long side of the box body have an inclination angle theta, theta is arctan h/d, h is the width of each rope groove on each winding drum, d is the diameter of each winding drum, the width h and the diameter d of the rope grooves of the two winding drums in each group are equal, the parallel assembly comprises a driving parallel winding drum, the inclined assembly comprises a driven inclined winding drum, and the driving parallel winding drum and the driven inclined winding drum are respectively driven by a driving motor and a driven motor to realize relative rotation, therefore, winding in one direction is realized, in addition, the number of the rope grooves of the driving parallel winding drum is N, and the number of the rope grooves of the driven inclined winding drum is N-1. Because the direction of the steel wire rope in the sealed box body is different, the inclination angle of the driven inclined winding drum in each group of winding drums is changed and can be divided into an upward inclined angle theta and a downward inclined angle theta, when the steel wire rope is wound from outside to inside in one group of winding drums, the driven inclined winding drum is inclined upwards, otherwise, the driven inclined winding drum is inclined downwards; arranging a plurality of layers in a first row from bottom to top through the steel wire rope after rope combination; then arranging a plurality of layers in the second row from top to bottom; and arranging a plurality of layers in the third row from bottom to top, and then arranging all the rows in sequence by analogy, and winding the finished product by a subsequent winding device.
The winding drum array arranged in multiple rows and multiple columns is arranged in a sealed box body, the box body seals the whole device through an end cover, the driving parallel winding drums and the driven inclined winding drums are supported on the sealed box body through bearings, the left side and the right side of the sealed box body are respectively provided with an inlet end and an outlet end of a steel wire rope, and the left side of the sealed box body is provided with a guide wire wheel for guiding the trend of the steel wire rope.
After entering the sealing device from the inlet end on the left side of the box body, the steel wire rope enters the first group of winding drums at the lower end of the box body under the action of the wire guide wheel. And the steel wire rope enters from the first rope groove of the driving parallel winding drum and then is transmitted to the first rope groove on the driven inclined winding drum with the axis inclined upwards by an angle theta, and then is transmitted to the second rope groove of the driving parallel winding drum through pressing and folding, and the steps are repeated from outside to inside until the Nth-1 th rope groove of the driven inclined winding drum is wound. The wire rope is then transferred from the rope groove N-1 of the first set of driven tilting drums to the N-1 st rope groove of the second set of driven tilting drums, which are tilted downward by an angle theta. Then the rope is transmitted to the (N-1) th rope groove of the second group of driving parallel winding drums, and then the rope is transmitted to the (N-2) th rope groove of the driven inclined winding drum, and the steps are repeated from inside to outside until the first rope groove of the driven inclined winding drum is wound. Then, the wire rope is transferred from the first rope groove of the driven tilting reel of the second group to the first rope groove of the driven tilting reel of the third group, and the reel is tilted upward by an angle θ. Then the steel wire rope is transferred to a second rope groove of a third group of driving parallel winding drums, and the process is repeated from outside to inside until the N-1 th rope groove of the driven inclined winding drum is wound. After the first row of steel wire ropes are wound, the steel wire ropes are transmitted from the (N-1) th rope groove of the driven inclined winding drum of the third group to the (N-1) th rope groove of the driving parallel winding drum of the fourth group, then the steel wire ropes are transmitted to the driven inclined winding drum of the fourth group, and so on until nine groups of winding drums are wound, and finally the steel wire ropes are transmitted out of the box body from the outlet end of the box body. The driven inclined reels of the first group incline upwards by an angle theta, the driven inclined reels of the second group incline downwards by an angle theta, the driven inclined reels of the third group incline upwards by an angle theta, the driven inclined reels of the fourth group incline downwards by an angle theta, the driven inclined reels of the fifth group incline upwards by an angle theta, the driven inclined reels of the sixth group incline downwards by an angle theta, the driven inclined reels of the seventh group incline upwards by an angle theta, the driven inclined reels of the eighth group incline downwards by an angle theta, and the driven inclined reels of the ninth group incline upwards by an angle theta.
Because the dislocation angle theta exists between the driving parallel winding drum and the driven inclined winding drum, after the steel wire rope enters the first rope groove transmitted to the driven inclined winding drum from the first rope groove of the driving parallel winding drum, the steel wire rope directly enters the second rope groove of the driving parallel winding drum after being folded by the driven inclined winding drum. Meanwhile, the steel wire rope turns through the angle theta at the folded part on each rope groove, so that the whole circumference of the steel wire rope is folded, and the flexibility of the steel wire rope is comprehensively improved.
The parallel assembly comprises a driving motor, a coupler, a sleeve, a parallel shaft, a flat key and a driving parallel winding drum, wherein the driving motor is connected with the rear end of the parallel shaft through the coupler, the parallel shaft is connected with the driving parallel winding drum through the flat key, and the sleeve is used for fixing the driving parallel winding drum at one end of the parallel shaft; the tilting assembly comprises a driven motor, a coupler, a sleeve, a tilting shaft, a flat key and a driven tilting drum, wherein the driven motor is connected with the rear end of the tilting shaft through the coupler, the tilting shaft is connected with the driven tilting drum through the flat key, and the sleeve is used for fixing the driven tilting drum at one end of the tilting shaft.
The winding of the steel wire rope on the winding drum needs to lubricate the steel wire rope, so that the friction between the steel wire rope and the rope groove of the winding drum is reduced, and the abrasion is reduced. The utility model discloses a lubricated mode for the oil bath is lubricated, pours into a certain amount of lubricating oil into among the box promptly, and the one third of the lower extreme reel height of lubricating oil submergence, other each group pass through oil mist lubrication, and the oil temperature is no longer than 300 ℃, brings lubricating oil into among the whole device through wire rope's motion. Since the lubricant is at the bottom of the tank, the wire rope should be wound from the lowermost drum, guided by the guide wheels, and introduced from the inlet end to the lowermost drum. In addition, in order to replace the lubricating liquid conveniently, an oil outlet is arranged at the bottom of the box body.
The motor is controlled by the same switch to reach the purpose that motor synchronous start and synchronous stopped.
The utility model has the advantages that: the utility model discloses a space dislocation mode of arranging between parallel reel of initiative and the driven slope reel has reached the purpose of carrying out the fold to the whole circumference of wire rope to comprehensive improvement wire rope's local stress and pliability. The box body adopts a sealing mode, so that external interference can be avoided during working, and the whole device is lubricated by adopting an oil bath method.
Drawings
Fig. 1 is an exploded view of a spatially misaligned steel cord flexibility enhancing device.
Fig. 2 shows the run of the steel cord of example 1 on nine groups of reels.
Fig. 3 is a left side view of the tilt reel.
Fig. 4 is a schematic diagram of the winding of a set of spools.
Fig. 5 is a cross-sectional view of a set of rolls.
Fig. 6 shows the run of the steel cord of example 2 over nine groups of reels.
In the figure: 1: a reel array; 2: an end cap; 3: a wire guide wheel; 4: sealing the box body; 5. 16: a flat bond; 6: an active parallel drum; 7. 14: a sleeve; 8: a parallel axis; 13: an inclined shaft; 9. 12: a coupling; 10: the active motor 11: a driven motor; 15: a driven tilt reel; 17: a bearing; a, parallel assembly; b, a tilting assembly.
Detailed Description
The structure of the present invention will be further described by way of examples with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a multi-layer multi-column arrangement and spatially staggered steel wire rope post-deformation device is composed of a plurality of groups of winding drums which are spatially arranged in multiple rows and multiple columns, in the figure, nine groups of winding drums which are spatially arranged in three rows and three columns are arranged in a sealed box body 4, the winding drums are supported on the sealed box body 4 through bearings 17, the left side and the right side of the sealed box body 4 are respectively provided with an inlet end and an outlet end of a steel wire rope, the left side of the sealed box body 4 is provided with a wire guide wheel 3 for guiding the trend of the steel wire rope, and the sealed box body 4 seals the whole device through an end cover 2; each group of winding drums is composed of a parallel assembly and an inclined assembly, wherein the parallel assembly is positioned on the left side, the inclined assembly is positioned on the right side, the parallel assembly and the inclined assembly are different in that the axis of the parallel assembly is parallel to the central line of the long side of the sealed box body 4, an inclination angle theta exists between the inclined assembly and the central line of the long side of the sealed box body 4, theta is arctangeh/d, h is the width of each rope groove on each winding drum, d is the diameter of the winding drum, the width h of the rope grooves on the two winding drums is equal to the diameter d, in addition, the number of the rope grooves of the driving parallel winding drum 6 is 25, and the number of the rope grooves of the driven inclined winding drum 15 is 24. Because the direction of the steel wire rope in the sealed box body 4 is different, the inclination angle of the driven inclined winding drum 15 in each group of winding drums is changed and can be divided into an upward inclined angle theta and a downward inclined angle theta.
As shown in fig. 2, after entering the sealed box 4 from the inlet end at the left side of the sealed box 4, the steel wire rope enters the first group of winding drums at the lower end of the sealed box 4 under the action of the wire guide wheel 3. After entering from the first rope groove of the driving parallel winding drum 6, the steel wire rope is transmitted to the first rope groove on the driven inclined winding drum 15 with the axis inclined upwards by an angle theta, and then is transmitted to the second rope groove of the driving parallel winding drum 6 through pressing and folding, and the steps are repeated until the steel wire rope winds to the twenty-fourth rope groove of the driven inclined winding drum 15 from outside to inside; then the steel wire rope is transmitted from the twenty-four rope grooves of the first group of driven inclined winding drums 15 to the twenty-fourth rope groove of the second group of driven inclined winding drums 15, the driven inclined winding drums incline downwards by an angle theta, then the steel wire rope is transmitted to the twenty-fourth rope groove of the second group of driving parallel winding drums 6 and then transmitted to the twenty-third rope groove of the driven inclined winding drums 15, and the steps are repeated from inside to outside until the first rope groove of the driven inclined winding drum 15 is wound; then, the wire rope will be transferred from the first rope groove of the driven inclined winding drum 15 of the second group to the first rope groove of the driven inclined winding drum 15 of the third group, the driven inclined winding drum 15 is inclined upwards by the angle θ, and then the wire rope will be transferred to the second rope groove of the driving parallel winding drum 6 of the third group, and so on, from outside to inside until the twenty-fourth rope groove of the driven inclined winding drum 15 is wound. After the first row of steel wire ropes is wound, the steel wire ropes are transmitted from twenty-fourth rope grooves of the driven inclined winding drums 15 of the third group to twenty-fourth rope grooves of the driving parallel winding drums 6 of the fourth group, then the steel wire ropes are transmitted to the driven inclined winding drums 15 of the fourth group, and the like until nine groups of winding drums are wound, and finally the steel wire ropes are transmitted out of the box body from the outlet end of the box body. The driven inclined reels of the first group incline upwards by an angle theta, the driven inclined reels of the second group incline downwards by an angle theta, the driven inclined reels of the third group incline upwards by an angle theta, the driven inclined reels of the fourth group incline downwards by an angle theta, the driven inclined reels of the fifth group incline upwards by an angle theta, the driven inclined reels of the sixth group incline downwards by an angle theta, the driven inclined reels of the seventh group incline upwards by an angle theta, the driven inclined reels of the eighth group incline downwards by an angle theta, and the driven inclined reels of the ninth group incline upwards by an angle theta. The driven tilt drum tilt angle is shown in fig. 3.
As shown in fig. 4, the steel cable enters from the first rope groove of the driving horizontal winding drum 6 and is transferred to the first rope groove of the driven inclined winding drum 15, and due to the existence of the offset angle θ between the two winding drums, the steel cable directly enters the second rope groove of the driving horizontal winding drum 6 after being folded by the driven inclined winding drum 15. Meanwhile, the steel wire rope turns through the angle theta at the folded part on each rope groove, so that the whole circumference of the steel wire rope is folded, and the flexibility of the steel wire rope is comprehensively improved.
As shown in fig. 5, a set of drums is composed of a parallel assembly a and a tilt assembly b, wherein the parallel assembly is located at the left side and the tilt assembly is located at the right side. The parallel assembly a comprises a driving motor 10, a coupler 9, a sleeve 7, a parallel shaft 8, a flat key 5 and a driving parallel winding drum 6, wherein the driving motor 10 is connected with the rear end of the parallel shaft 8 through the coupler 9, the parallel shaft 8 is connected with the driving parallel winding drum 6 through the flat key 5, and one end of the sleeve 7 on the parallel shaft 8 is used for fixing the driving parallel winding drum 6; the tilting assembly b comprises a driven motor 11, a coupling 12, a sleeve 14, a tilting shaft 13, a flat key 16 and a driven tilting drum 15, the driven motor 11 is connected with the rear end of the tilting shaft 13 through the coupling 12, the tilting shaft 13 and the driven tilting drum 15 are connected through the flat key 16, the sleeve 14 is used for fixing the driven tilting drum 15 at one end of the tilting shaft 13, and the parallel assembly a and the tilting assembly b are supported on the sealed box 4 through a bearing 17. During operation, the parallel assembly and the inclined assembly of the nine groups of winding drums rotate synchronously. And lubricating liquid with the height of one third of that of the lowest winding drum is immersed in the sealed box body 4, and the steel wire rope is guided into the first group of winding drums at the lower end of the sealed box body 4 through the wire guide wheel 3 on the sealed box body 4, so that the steel wire rope can be fully lubricated in the post-treatment process on the winding drums. When the lubricating liquid in the box body needs to be replaced, the original lubricating liquid in the box body can be discharged from the oil outlet.
Example 2
The winding principle of the embodiment is basically the same as that of the embodiment 1, and the difference is that a plurality of layers in a first row are arranged from top to bottom with the steel wire rope; arranging a plurality of layers in a second row from bottom to top; then, a plurality of layers in the third row are arranged from top to bottom, after the steel wire rope enters the sealing box body 4 from the inlet end on the left side of the sealing box body 4, the steel wire rope enters from the first rope groove of the driving parallel winding drum 6 and is transmitted to the first rope groove on the driven inclined winding drum 15 with the axis inclined upwards by an angle theta, and then the steel wire rope is transmitted to the second rope groove of the driving parallel winding drum through pressing and folding, and the steps are repeated from outside to inside until the steel wire rope winds to the twenty-fourth rope groove of the driven inclined winding drum; then the steel wire rope is transmitted from the twenty-four rope grooves of the first group of driven inclined winding drums 15 to the twenty-fourth rope groove of the second group of driven inclined winding drums 15, the driven inclined winding drums incline downwards by an angle theta, then the steel wire rope is transmitted to the twenty-fourth rope groove of the second group of driving parallel winding drums 6 and then transmitted to the twenty-third rope groove of the driven inclined winding drums 15, and the steps are repeated from inside to outside until the first rope groove of the driven inclined winding drum 15 is wound; then, the wire rope will be transferred from the first rope groove of the driven inclined winding drum 15 of the second group to the first rope groove of the driven inclined winding drum 15 of the third group, the driven inclined winding drum 15 is inclined upwards by the angle θ, and then the wire rope will be transferred to the second rope groove of the driving parallel winding drum 6 of the third group, and so on, from outside to inside until the twenty-fourth rope groove of the driven inclined winding drum 15 is wound. After the first row of steel wire ropes are wound, the steel wire ropes are transmitted from twenty-fourth rope grooves of the driven inclined winding drums 15 of the third group to twenty-fourth rope grooves of the driving parallel winding drums 6 of the fourth group, then the steel wire ropes are transmitted to the driven inclined winding drums 15 of the fourth group, and the like until nine groups of winding drums are wound, and finally the steel wire ropes are transmitted out of the sealed box body 4 from the outlet end of the box body through the guide wheels. The driven inclined reels of the first group incline upwards by an angle theta, the driven inclined reels of the second group incline downwards by an angle theta, the driven inclined reels of the third group incline upwards by an angle theta, the driven inclined reels of the fourth group incline downwards by an angle theta, the driven inclined reels of the fifth group incline upwards by an angle theta, the driven inclined reels of the sixth group incline downwards by an angle theta, the driven inclined reels of the seventh group incline upwards by an angle theta, the driven inclined reels of the eighth group incline downwards by an angle theta, and the driven inclined reels of the ninth group incline upwards by an angle theta.
Claims (5)
1. A multi-layer and multi-column arranged and spatially staggered steel wire rope post-deformation device is characterized by comprising a winding drum array arranged in multiple rows and multiple columns, each layer of each column in the winding drum array is composed of a group of winding drums, each group of winding drums is composed of a parallel assembly and an inclined assembly, the parallel assembly is positioned on the left side, the inclined assembly is positioned on the right side, the parallel assembly comprises a driving parallel winding drum, the inclined assembly comprises a driven inclined winding drum, the driving parallel winding drum and the driven inclined winding drum are respectively driven by a driving motor and a driven motor to rotate relatively, so that one-direction winding is realized, in addition, the number of rope grooves of the driving parallel winding drum is N, and the number of rope grooves of the driven inclined winding drum is N-1; because the trend of the steel wire rope in the sealed box body is different, the inclination angle of the driven inclined winding drum in each group of winding drums can be changed into an upward inclined angle theta and a downward inclined angle theta, when the steel wire rope is wound from outside to inside in one group of winding drums, the driven inclined winding drum is inclined upwards, otherwise, the driven inclined winding drum is inclined downwards.
2. The multi-layer multi-column arranged and spatially offset steel wire rope post-deformation device according to claim 1, wherein the axes of the parallel assemblies are parallel to the center line of the long side of the box body, the tilt assemblies and the center line of the long side of the box body have a tilt angle θ, θ is arctangeh/d, h is the width of each rope groove on the winding drum, d is the diameter of the winding drum, and the width h of the rope grooves of two winding drums in each group is equal to the diameter d.
3. The device for post-deformation of steel wire ropes arranged in multiple layers and multiple columns and staggered in space according to claim 1, wherein the winding drum arrays arranged in multiple rows and multiple columns are arranged in a sealed box body, the box body seals the whole device through an end cover, the driving parallel winding drum and the driven inclined winding drum are supported on the sealed box body through bearings, the left side and the right side of the sealed box body are respectively provided with the inlet end and the outlet end of the steel wire rope, and the left side of the sealed box body is provided with a wire guide wheel for guiding the trend of the steel wire rope.
4. The device for post-deformation of steel wire ropes arranged in multiple layers and multiple columns and staggered in space according to claim 1, wherein the parallel assembly comprises an active motor, a coupler, a sleeve, a parallel shaft, a flat key and an active parallel winding drum, the active motor is connected with the rear end of the parallel shaft through the coupler, the parallel shaft is connected with the active parallel winding drum through the flat key, and the sleeve is used for fixing the active parallel winding drum at one end of the parallel shaft; the tilting assembly comprises a driven motor, a coupler, a sleeve, a tilting shaft, a flat key and a driven tilting drum, wherein the driven motor is connected with the rear end of the tilting shaft through the coupler, the tilting shaft is connected with the driven tilting drum through the flat key, and the sleeve is used for fixing the driven tilting drum at one end of the tilting shaft.
5. The post-deformation device for the steel wire ropes arranged in multiple layers and multiple columns and staggered in space according to claim 1, wherein the driving motor and the driven motor are controlled by the same switch, so that the purpose of synchronous starting and synchronous stopping of the motors is achieved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022266493.7U CN214831479U (en) | 2020-10-13 | 2020-10-13 | Steel wire rope post-deformation device with multiple layers and multiple rows of arrangement and spatial dislocation |
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| CN202022266493.7U CN214831479U (en) | 2020-10-13 | 2020-10-13 | Steel wire rope post-deformation device with multiple layers and multiple rows of arrangement and spatial dislocation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227097A (en) * | 2020-10-13 | 2021-01-15 | 江苏大学 | Steel wire rope post-deformation device with multiple layers and multiple rows of arrangement and spatial dislocation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227097A (en) * | 2020-10-13 | 2021-01-15 | 江苏大学 | Steel wire rope post-deformation device with multiple layers and multiple rows of arrangement and spatial dislocation |
| CN112227097B (en) * | 2020-10-13 | 2024-03-19 | 江苏大学 | Steel wire rope post-deformation device with multilayer, multi-row arrangement and space dislocation |
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