CN220334560U - Rope loosening device for electrically controlling rotation of steel wire rope and completely releasing rotation stress by braking - Google Patents
Rope loosening device for electrically controlling rotation of steel wire rope and completely releasing rotation stress by braking Download PDFInfo
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- CN220334560U CN220334560U CN202321490402.5U CN202321490402U CN220334560U CN 220334560 U CN220334560 U CN 220334560U CN 202321490402 U CN202321490402 U CN 202321490402U CN 220334560 U CN220334560 U CN 220334560U
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- 238000004804 winding Methods 0.000 abstract description 20
- 238000005299 abrasion Methods 0.000 description 5
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Abstract
The utility model discloses a rope loosening device for electrically controlling rotation of a steel wire rope and completely releasing rotation stress by braking, and relates to the field of hoisting. The rope loosening device comprises an upper hinge seat and a lower cylindrical shell which are fixedly welded together, a servo motor with a brake is arranged in an inner cavity of the upper hinge seat, a connecting shaft is arranged in an inner cavity of the lower cylindrical shell, one end of the connecting shaft is connected with an output shaft of the servo motor, the other end of the connecting shaft is connected with a coupler of the connecting shaft through a flat key, and the coupler is sleeved on the middle upper part of the connecting shaft from top to bottom, and is embedded in an upper gland, an inner nut, a bearing and an outer wire plug in the inner cavity of the lower cylindrical shell. The utility model can be used for electrically controlling the rotation and braking of the steel wire rope, can accurately control the inversion number of turns of the steel wire rope, and can completely release the rotation stress of the steel wire rope after being matched with the lifting hook to lift, thereby thoroughly solving the technical problems of loaded rotation, turning and twisting of the steel wire rope, avoiding the winding phenomenon of the steel wire rope of the multi-multiplying power pulley block caused by the loaded rotation of the steel wire rope and saving troublesome manual high-altitude dangerous operation.
Description
Technical Field
The utility model relates to the technical field of hoisting equipment, in particular to a rope loosening device for electrically controlling rotation of a steel wire rope and completely releasing rotation stress by braking.
Background
In hoisting equipment with a large hoisting height (such as a tower crane, particularly a luffing tower crane), in order to prevent the steel wire rope from rotating and winding, a hoisting mechanism adopts a non-rotating steel wire rope. As is known, steel cords are constructed from strands of steel twisted together in a spiral, and this construction causes twisting of the cord in the opposite direction to the spiral when loaded. In order to reduce the loaded rotation phenomenon of the steel wire rope, a non-rotating steel wire rope is specially designed, and the non-rotating steel wire rope is formed by twisting two or more layers of steel strands in opposite directions; the rotation directions of the inner layer and the outer layer of steel strands around the rope shaft are opposite and mostly offset when the steel strands are loaded, so that the situation of loaded torsion of the steel wire rope is greatly weakened; however, because the positions of the opposite steel strands are different (there are differences between the inner layer and the outer layer, such as the left-handed outer layer and the right-handed outer layer), the loaded rotation angles of the steel strands cannot be completely equal, so that the phenomenon of loaded rotation of the steel strands cannot be thoroughly eliminated even if the steel strands are not rotated, the steel strands are wound together due to the loaded rotation of the steel strands, the operation is difficult or even the normal lifting load is not realized when the steel strands are lifted, and the steel strands are seriously worn and unexpected damage occurs.
The rope loosening device is also called as a stress releaser, and can rotate under a stress state to counteract torsion of the lifting hook steel wire rope under a load state, and can only be matched with a non-rotating steel wire rope to be used, so that the steel wire rope is loosened when the rope loosening device is matched with a common steel wire rope, and the steel wire rope is damaged to cause accidents.
The rope loosening device is generally arranged at the fixed end of the steel wire rope, and the rope loosening device rotates under the torsion action of the steel wire rope to release the stress of the steel wire rope when the steel wire rope rotates under load, so that the steel wire ropes cannot be wound together due to the rotation stress. For the multi-multiplying-power steel wire ropes, the rotation stress can be generated when each steel wire rope on two sides of each pulley is loaded, the rotation stress is also large when the lifting load is larger, and part of the rotation stress of each steel wire rope which goes up and down along with the lifting load bypasses the pulley and enters the steel wire rope wound on the winding drum, so that the winding stress of the part of the steel wire rope can cause the winding drum to be disordered; the rotating stress of the steel wire ropes connected with the rotator in the plurality of steel wire ropes can be completely released, a part of the rotating stress of other steel wire ropes can not bypass the pulley to be transited to the next steel wire rope, and as a result, the rotating stress of each steel wire rope can not completely bypass the pulley and finally reach the rope fixing end of the steel wire rope to be released by the rope loosening device, and part of the rotating stress of the steel wire ropes remains in the steel wire ropes, so that the pulley block with the rope loosening device can have the winding phenomenon of the plurality of steel wire ropes. The existing rope loosening device is required to solve the problem that the winding phenomenon of the steel wire rope is often required to climb to the rope loosening device manually, the rope loosening device is forced to reversely rotate by the human body and simultaneously is matched with the lifting hook to lift to release the rotation stress of the steel wire rope, the winding condition of the steel wire rope can occur after each lifting heavy load, the rope loosening device is required to be manually climbed to the rope loosening device to be in high-altitude operation, and the rope loosening device has certain danger and is troublesome to operate. Therefore, a rope loosening device capable of automatically controlling rotation and braking of a steel wire rope, completely releasing rotation stress, thoroughly solving the technical problems of loaded rotation, turning and twisting of the steel wire rope and avoiding winding of the steel wire rope of a multi-multiplying-power pulley block needs to be designed.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides the rope loosening device for electrically controlling the rotation of the steel wire rope and completely releasing the rotation stress by braking. The utility model can be used for electrically controlling the rotation and braking of the steel wire rope, can accurately control the inversion number of turns of the steel wire rope, can completely release the rotation stress of the steel wire rope after being matched with the lifting hook to lift, thoroughly solves the technical problems of loaded rotation, turning and twisting of the steel wire rope, avoids the winding phenomenon of the steel wire rope caused by loaded rotation of the steel wire rope, ensures the normal lifting load, reduces the abrasion and damage of the steel wire rope, saves troublesome manual high-altitude dangerous operation, and is time-saving, labor-saving, safe and reliable.
The aim of the utility model can be achieved by the following technical measures:
the utility model relates to an electric control steel wire rope rotation and braking fully-releasing rotation stress rope loosening device, which comprises an upper hinge seat and a lower cylindrical shell which are fixedly welded and combined (an installation base and an installation space are provided for other parts of the utility model), and a servo motor (a connecting shaft is designed in the utility model, one end of the connecting shaft is connected with a steel wire rope, and the other end of the connecting shaft is connected with an output shaft of the servo motor through a coupling), wherein when the steel wire rope tied on a rope fixing hole of the connecting shaft has rotation torque, the brake in the servo motor is opened through electric control, the connecting shaft is in a free rotation state, and the connecting shaft rotates under the torsion action of the steel wire rope and simultaneously releases the stress of the steel wire rope, so that the steel wire ropes cannot be wound together due to the rotation stress; when a plurality of steel wires of the multi-multiplying power pulley block are wound, the electric control servo motor drives the connecting shaft to rotate reversely, namely, the direction opposite to the winding direction of the steel wires is changed, the brake inside the servo motor is closed after a plurality of turns are reversed to fix the connecting shaft, the rotation stress of each steel wire is released by lifting the lifting hook for 2-3 times, if the rotation stress of the steel wire is not completely released, the operation is repeated, the brake is closed again after the turns are changed reversely by the electric control servo motor to fix the connecting shaft again, and the lifting hook is matched for 2-3 times to release the rotation stress of each steel wire until each steel wire is not wound any more, therefore, the utility model can electrically control the rotation and the braking of the steel wire, can also accurately control the reverse turn number of the steel wire, and completely release the rotation stress of the steel wire after being matched with the lifting hook, the phenomenon of winding of the steel wire rope of the multi-multiplying power pulley block caused by the loaded rotation of the steel wire rope is avoided, the normal lifting load is ensured, the abrasion and damage of the steel wire rope are reduced, the troublesome manual high-altitude dangerous operation is omitted, time and labor are saved, safety and reliability are realized, a connecting shaft is arranged in the inner cavity of the lower cylindrical shell, one end of the connecting shaft is connected with the output shaft of the servo motor, and the other end of the connecting shaft is connected with a coupler of the connecting shaft through a flat key (in this way, when a brake in the servo motor is opened and the servo motor is not started, the connecting shaft is in a state capable of freely rotating, the connecting shaft can rotate under the torsion action of the steel wire rope, and meanwhile, the stress of the steel wire rope is released, so that the steel wire ropes cannot be wound together due to the rotation stress; the connecting shaft can be fixed when the brake inside the servo motor is closed. When a plurality of steel wires of the multi-multiplying power pulley block are wound, the electric control servo motor drives the connecting shaft to rotate reversely, namely, the direction opposite to the winding direction of the steel wires is rotated, after a plurality of turns of the electric control servo motor are reversed, a brake in the servo motor is closed to fix the connecting shaft, the lifting hook is lifted for 2-3 times to release the rotation stress of each steel wire), an upper gland, an inner nut, a bearing and an outer wire plug are sleeved on the middle upper part of the connecting shaft from top to bottom and are embedded in the inner cavity of the lower cylindrical shell (the inner nut and the upper gland synchronously rotate along with the connecting shaft and press the bearing); the connecting shaft is composed of a concentric three-step column and a lifting ring section, wherein the diameter of the concentric three-step column is gradually increased, a key slot matched with a flat key (used for embedding the flat key) is processed on the stepped column I, an external thread matched with an internal nut is processed at the upper end part of the stepped column III (the internal nut and the stepped column III are ensured to be smoothly combined through the thread), and a rope fixing hole (used for tying and hanging a fixedly connected end of a steel wire rope) is processed on the lifting ring section.
The upper gland is arranged on the top end surface of the inner nut in a bolt combination mode; the bearing is clamped between the inner screw nut and the outer plug head, and the inner diameter of the bearing is matched with the diameter of the optical path section of the stepped column III; the inner diameter of the outer wire plug is in clearance fit with the optical path section of the stepped column III (ensuring that the rotation of the connecting shaft is not interfered), an embedded groove for embedding a bearing is processed on the top surface of the outer wire plug, and threads are processed on the outer surface of the outer wire plug (facilitating the rapid threaded connection between the outer wire plug and the stepped cavity III of the lower cylindrical shell).
The inner cavity of the lower cylindrical shell is a concentric three-step column formed by a step cavity I, a step cavity II and a step cavity III with gradually enlarged diameters; the clearance fit is formed between the step cavity I and the largest peripheral dimension of the inner screw nut (enough proper clearance is reserved between the step cavity I and the largest peripheral dimension of the inner screw nut, the rotation of the inner screw nut is guaranteed not to be interfered), the clearance fit is formed between the step cavity II and the outer diameter of the bearing, and threads matched with the outer screw plugs are machined on the inner cavity surface of the step cavity III (the step cavity III of the lower cylindrical shell is convenient to quickly realize threaded connection with the outer screw plug).
The upper hinge seat is composed of a bottom plate and two identical hinge plates which are vertically welded on the same side of the bottom plate and are parallel to each other; pin holes are arranged at the same positions of the tops of the two hinge plates (the pin shaft can be quickly fixed after the pin shaft is penetrated); the servo motor is fixed on the bottom plate (used for fixing and supporting the servo motor) through bolts.
The design principle of the utility model is as follows:
the utility model adopts the servo motor with the brake to control the rotation and self-braking of the connecting shaft, can accurately control the reverse turn number of the steel wire rope by means of the servo motor, can completely release the rotation stress of the steel wire rope after being matched with the lifting hook to lift, thoroughly solves the technical problems of the steel wire rope such as loaded rotation, turning and twisting, avoids the winding phenomenon of the steel wire rope of the multi-multiplying-power pulley block caused by the loaded rotation of the steel wire rope, ensures the normal lifting load, reduces the abrasion and damage of the steel wire rope, saves the troublesome manual high-altitude dangerous operation, and is time-saving, labor-saving, safe and reliable. More specifically, the utility model is provided with a connecting shaft, one end of the connecting shaft is connected with the steel wire rope, and the other end of the connecting shaft is connected with the output shaft of the servo motor through a coupler. When the steel wire rope tied on the rope fixing hole of the connecting shaft has rotation torque, the brake inside the servo motor is opened through electric control, the connecting shaft is in a freely rotatable state, and the connecting shaft rotates under the action of the torsion of the steel wire rope and simultaneously releases the stress of the steel wire rope, so that the steel wire ropes cannot be wound together due to the rotation stress; when a plurality of steel wire ropes of the multi-multiplying power pulley block are wound, the electric control servo motor drives the connecting shaft to rotate reversely, namely, the connecting shaft rotates in the direction opposite to the winding direction of the steel wire ropes, after a plurality of turns of the connecting shaft are reversed, a brake in the servo motor is closed to fix the connecting shaft, and the lifting hook is lifted for 2-3 times to release the rotation stress of each steel wire rope; if the rotation stress of the steel wire rope is not completely released, repeating the operation, turning off the brake after the servo motor rotates reversely to fix the connecting shaft again, and lifting the connecting shaft for 2-3 times to release the rotation stress of each steel wire rope until each steel wire rope is not wound.
The beneficial technical effects of the utility model are as follows:
the utility model can be used for electrically controlling the rotation and braking of the steel wire rope, can accurately control the inversion number of turns of the steel wire rope, can completely release the rotation stress of the steel wire rope after being matched with the lifting hook to lift, thoroughly solves the technical problems of loaded rotation, turning and twisting of the steel wire rope, avoids the winding phenomenon of the steel wire rope caused by loaded rotation of the steel wire rope, ensures the normal lifting load, reduces the abrasion and damage of the steel wire rope, saves troublesome manual high-altitude dangerous operation, and is time-saving, labor-saving, safe and reliable.
Drawings
FIG. 1 is a longitudinal cross-sectional view of the structure of the present utility model.
Fig. 2 is a left side view in half cross-section of fig. 1.
Description of the number in the figure: 1. 1-1 parts of upper hinge seat, 1-2 parts of bottom plate, 1-2 parts of hinge plate and 1-2-1 parts of pin hole; 2. a servo motor; 3. a lower cylindrical shell, 3-1, a step cavity I, 3-2, a step cavity II, 3-3 and a step cavity III; 4. a coupling; 5. the connecting shaft, 5-1, the ladder columns I, 5-2, the ladder columns II, 5-3, the ladder columns III, 5-4, the hanging ring section, 5-4-1 and the rope fixing hole; 6. a flat key; 7. a gland is arranged; 8. an inner nut; 9. a bearing; 10. an external wire plug, 10-1 and an embedded groove.
Description of the embodiments
The utility model will be further described with reference to the accompanying drawings:
as shown in figures 1 and 2, the electric control wire rope rotation and braking fully release rotation stress of the rope loosening device comprises an upper hinge seat 1 and a lower cylindrical shell 3 which are fixedly welded together (an installation foundation and an installation space are provided for other parts of the utility model), a servo motor 2 which is installed in an inner cavity of the upper hinge seat and is provided with a brake (the utility model is provided with a connecting shaft 5, one end of the connecting shaft 5 is connected with a wire rope, the other end of the connecting shaft is connected with an output shaft of the servo motor 2 through a coupling 4. When the wire rope tied on a rope fixing hole 5-4-1 of the connecting shaft 5 has rotation torque, the brake inside the servo motor 2 is opened through electric control, the connecting shaft 5 is in a freely rotatable state, the connecting shaft 5 rotates under the torsion action of the wire rope, and simultaneously releases the stress of the wire rope, when the plurality of wire ropes of a plurality of electric control pulley blocks are wound, the connecting shaft 5 is driven to rotate reversely through the electric control servo motor 2 through the electric control pulley block, namely, the wire rope lifting hook 2 is turned in the opposite winding direction, the rotating direction is closed after the rotating of the wire rope is turned reversely, the inner part of the electric control pulley block is turned over the wire rope is turned over, the wire rope lifting hook 2 is turned over again, and the rotation stress is released again, and the electric control hook is not rotated again, and the wire rope rotation is completely is controlled by the electric control hook 2, if the electric control hook is turned over the rotation and the rotation stress is not completely, and the wire rope rotation is released again, and the rotation stress is completely is released again by the electric control hook, and the wire rope is not turned over the wire rope is completely and the wire rope is rotated, the lifting hook is matched with the lifting hook to lift, so that the technical problems of steel wire rope rotation under load, turning and twisting are thoroughly solved, the phenomenon of multi-multiplying power pulley block steel wire rope winding caused by steel wire rope rotation under load is avoided, normal lifting load is guaranteed, abrasion and damage of the steel wire rope are reduced, troublesome manual high-altitude dangerous operation is omitted, time and labor are saved, safety and reliability are realized, a connecting shaft 5 is arranged in an inner cavity of a lower cylindrical shell, one end of the connecting shaft is connected with an output shaft of a servo motor, and the other end of the connecting shaft is connected with a shaft coupler 4 of the connecting shaft through a flat key 6 (in this way, when a brake in the servo motor 2 is opened and the servo motor 2 is not started, the connecting shaft 5 can be in a freely rotating state, and the connecting shaft 5 can rotate under the torque action of the steel wire rope and simultaneously release the steel wire rope stress, so that the steel wire ropes cannot be wound together due to the rotation stress; the connecting shaft 5 can be fixed when the brake inside the servomotor 2 is closed. When a plurality of steel wires of the multi-multiplying power pulley block are wound, the electric control servo motor 2 drives the connecting shaft 5 to rotate reversely, namely, the direction opposite to the winding direction of the steel wires is rotated, after a plurality of turns of the electric control servo motor are reversed, a brake in the servo motor 2 is closed to fix the connecting shaft 5, the lifting hook is lifted for 2-3 times to release the rotation stress of each steel wire rope), an upper gland 7, an inner screw 8, a bearing 9 and an outer screw plug 10 are sleeved on the middle upper part of the connecting shaft from top to bottom and are embedded in the inner cavity of the lower cylindrical shell (the inner screw 8 and the upper gland 7 synchronously rotate along with the connecting shaft 5 and press the bearing 9); the connecting shaft 5 is composed of a concentric three-step column consisting of a step column I5-1, a step column II 5-2 and a step column III 5-3 with gradually increased diameters and a lifting ring section 5-4, a key slot matched with a flat key 6 (used for embedding the flat key 6) is processed on the step column I5-1, an external thread matched with an internal screw nut 8 is processed at the upper end part of the step column III 5-3 (ensuring that the internal screw nut 8 and the step column III 5-3 are smoothly combined through the threads), and a rope fixing hole 5-4-1 (used for tying the fixedly connected end of a steel wire rope) is processed on the lifting ring section 5-4.
In the utility model, an upper gland 7 is arranged on the top end surface of an inner screw nut 8 in a bolt combination mode; the bearing 9 is clamped between the inner screw nut 8 and the outer screw plug 10, and the inner diameter of the bearing 9 is matched with the diameter of the optical path section of the stepped column III 5-3; the inner diameter of the outer wire plug 10 is in clearance fit with the optical path section of the stepped column III 5-3 (ensuring that the rotation of the connecting shaft 5 is not interfered), an embedded groove 10-1 for embedding a bearing 9 is processed on the top surface of the outer wire plug 10, and threads are processed on the outer surface of the outer wire plug 10 (facilitating the rapid threaded connection between the outer wire plug 10 and the stepped cavity III 3-3 of the lower cylindrical shell 3).
The inner cavity of the lower cylindrical shell 3 is a concentric three-step column formed by a step cavity I3-1, a step cavity II 3-2 and a step cavity III 3-3 with gradually increased diameters; the step cavity I3-1 is in clearance fit with the largest peripheral dimension of the inner screw nut 8 (enough proper clearance is reserved between the step cavity I3-1 and the largest peripheral dimension of the inner screw nut, rotation of the inner screw nut 8 is not interfered), the step cavity II 3-2 is in clearance fit with the outer diameter of the bearing 9, and threads matched with the outer screw plug 10 are machined on the inner cavity surface of the step cavity III 3-3 (so that the step cavity III 3-3 of the lower cylindrical shell 3 is in threaded connection with the outer screw plug 10 quickly).
The upper hinge seat 1 in the utility model is composed of a bottom plate 1-1 and two identical hinge plates 1-2 which are vertically welded on the same side of the bottom plate and are parallel to each other; pin holes 1-2-1 are arranged at the same positions on the tops of the two hinge plates 1-2 (the pin shaft can be quickly fixed after the pin shaft is penetrated); the servo motor 2 is fixed to the base plate 1-1 (for fixing and supporting the servo motor 2) by bolts.
The specific use cases of the utility model are as follows:
before using the present utility model, the present utility model is assembled according to the drawings and the above description of the structure, and it is checked whether the connection shaft 5 can freely rotate when the brake inside the servo motor 2 is opened, and whether the connection shaft 5 can be braked in time when the brake is closed. After the assembly is finished, the utility model can be put into normal work, namely when the steel wire rope tied on the rope fixing hole 5-4-1 of the connecting shaft 5 has rotating torque, the brake in the servo motor 2 is opened through electric control, the connecting shaft 5 is in a freely rotatable state, and the connecting shaft 5 rotates under the action of the torsion of the steel wire rope and simultaneously releases the stress of the steel wire rope, so that the steel wire ropes cannot be wound together due to the rotating stress; when a plurality of steel wire ropes of the multi-multiplying power pulley block are wound, the electric control servo motor 2 drives the connecting shaft 5 to rotate reversely, namely, the connecting shaft rotates in the direction opposite to the winding direction of the steel wire ropes, after a plurality of turns of the connecting shaft are reversed, a brake in the servo motor 2 is closed to fix the connecting shaft 5, and the lifting hook is lifted for 2-3 times to release the rotation stress of each steel wire rope; if the rotation stress of the steel wire rope is not completely released, repeating the operation, turning off the brake after the servo motor 2 turns back again to fix the connecting shaft 5 again, and releasing the rotation stress of each steel wire rope by cooperating with the lifting hook to lift for 2-3 times until each steel wire rope is not wound.
Claims (4)
1. An electric control wire rope rotation and braking release rope ware of rotation stress entirely, its characterized in that: the rope loosening device comprises an upper hinge seat (1) and a lower cylindrical shell (3) which are fixedly welded and combined, a servo motor (2) which is arranged in an inner cavity of the upper hinge seat and is provided with a brake, a connecting shaft (5) which is arranged in an inner cavity of the lower cylindrical shell, a coupler (4) with one end connected with an output shaft of the servo motor and the other end connected with the connecting shaft through a flat key (6), an upper gland (7), an inner nut (8), a bearing (9) and an outer wire plug (10) which are sleeved on the middle upper part of the connecting shaft from top to bottom and are embedded in the inner cavity of the lower cylindrical shell; the connecting shaft (5) is composed of a concentric three-step column and a lifting ring section (5-4), wherein the diameter of the concentric three-step column is formed by a step column I (5-1), a step column II (5-2) and a step column III (5-3) which are gradually increased, a key slot matched with a flat key (6) is processed on the step column I (5-1), an external thread matched with an internal screw nut (8) is processed at the upper end part of the step column III (5-3), and a rope fixing hole (5-4-1) is processed on the lifting ring section (5-4).
2. The rope unwinder for electrically controlling rotation of a wire rope and braking to completely release rotational stress according to claim 1, wherein: the upper gland (7) is arranged on the top end surface of the inner nut (8) in a bolt combination mode; the bearing (9) is clamped between the inner screw nut (8) and the outer screw plug (10), and the inner diameter of the bearing (9) is matched with the diameter of the optical path section of the stepped column III (5-3); the inner diameter of the outer wire plug (10) is in clearance fit with the optical path section of the stepped column III (5-3), an embedded groove (10-1) for embedding the bearing (9) is processed on the top surface of the outer wire plug (10), and threads are processed on the outer surface of the outer wire plug (10).
3. The rope unwinder for electrically controlling rotation of a wire rope and braking to completely release rotational stress according to claim 1, wherein: the inner cavity of the lower cylindrical shell (3) is a concentric three-step column formed by a step cavity I (3-1), a step cavity II (3-2) and a step cavity III (3-3) with gradually enlarged diameters; the step cavity I (3-1) is in clearance fit with the largest peripheral dimension of the inner screw nut (8), the step cavity II (3-2) is in clearance fit with the outer diameter of the bearing (9), and threads matched with the outer screw plug (10) are machined on the inner cavity surface of the step cavity III (3-3).
4. The rope unwinder for electrically controlling rotation of a wire rope and braking to completely release rotational stress according to claim 1, wherein: the upper hinge seat (1) is composed of a bottom plate (1-1) and two identical hinge plates (1-2) which are vertically welded on the same side of the bottom plate and are parallel to each other; pin holes (1-2-1) are arranged at the same positions on the tops of the two hinge plates (1-2); the servo motor (2) is fixed on the bottom plate (1-1) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321490402.5U CN220334560U (en) | 2023-06-13 | 2023-06-13 | Rope loosening device for electrically controlling rotation of steel wire rope and completely releasing rotation stress by braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321490402.5U CN220334560U (en) | 2023-06-13 | 2023-06-13 | Rope loosening device for electrically controlling rotation of steel wire rope and completely releasing rotation stress by braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220334560U true CN220334560U (en) | 2024-01-12 |
Family
ID=89461390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321490402.5U Active CN220334560U (en) | 2023-06-13 | 2023-06-13 | Rope loosening device for electrically controlling rotation of steel wire rope and completely releasing rotation stress by braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220334560U (en) |
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2023
- 2023-06-13 CN CN202321490402.5U patent/CN220334560U/en active Active
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