CN111114218B - Traffic machinery traction device with automatic adjusting function and operation method - Google Patents
Traffic machinery traction device with automatic adjusting function and operation method Download PDFInfo
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- CN111114218B CN111114218B CN202010038282.XA CN202010038282A CN111114218B CN 111114218 B CN111114218 B CN 111114218B CN 202010038282 A CN202010038282 A CN 202010038282A CN 111114218 B CN111114218 B CN 111114218B
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- spring
- fixedly connected
- hook
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/04—Hook or hook-and-hasp couplings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/14—Draw-gear or towing devices characterised by their type
- B60D1/18—Tow ropes, chains or the like
- B60D1/185—Tow ropes, chains or the like comprising a cable or chain winding device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
Abstract
The invention provides a traffic machinery traction device with an automatic adjusting function and an operation method thereof. According to the invention, through the mutual cooperation of the supporting device, the first spring, the sliding block, the sliding groove, the reel, the motor, the electromagnet, the rear seat, the microprocessor, the alarm module and the ranging sensor, the tension between the hauling machine and the fault machine can be automatically adjusted, so that the steel strand can be protected to a certain extent.
Description
Technical Field
The invention belongs to the technical field of transportation machinery, and particularly relates to a transportation machinery traction device with an automatic adjusting function and a method.
Background
The towing hook traction of the transportation machinery is one of auxiliary vehicle-assisted tools of the transportation machinery, and is used for connecting a front vehicle with a rear vehicle so that the front vehicle can tow the rear vehicle away through the towing under the condition of failure of the rear vehicle.
The transportation machine sometimes has faults in the running process, and at the moment, the fault vehicle needs to be pulled away through a traction device, however, the existing traction device for the transportation machine is as follows: for example, in CN201810998820, the traction device of a transportation machine with an automatic adjustment function is often a steel wire rope with two traction hooks, because the connection of the traction rope is too soft, in the process of towing, because the speed of the rear vehicle is difficult to keep synchronous with that of the front vehicle, accidents such as rear-end collision or collision and the like are easily caused between the hauling machine and the fault machine due to flexible traction, moreover, because the elastic deformation capability of the hauling rope is poor, the hauling rope is stressed unevenly in the hauling process, the condition of sudden stress change is easy to occur, so that the hauling rope is easy to break, the rest adjustable traction devices of the transportation machines are designed by a pure mechanical structure, adopt a double-shell structure, have complex, large and heavy structures, are not easy to carry and are easy to break down, do not have an automatic adjustment control system, and cannot automatically adjust the traction force according to scenes, so that the traction devices of the transportation machines with automatic adjustment functions are urgently needed to solve the problems.
Disclosure of Invention
The invention aims to solve the problems that the conventional traction device for the transportation machinery is usually a steel wire rope with two traction hooks, the traction rope is connected too soft, in the process of towing, the rear vehicle is difficult to keep synchronous with the front vehicle in speed, accidents such as rear-end collision or collision and the like are easily caused between the consignment machinery and the fault machinery due to flexible traction, and the traction rope is easy to break due to uneven stress and sudden change of the traction rope in the traction process because the elastic deformation capacity of the traction rope is poor.
In order to achieve the technical features, the invention is realized as follows: the traffic machinery traction device with the automatic adjusting function comprises a wire collecting box and an intelligent control system arranged on one side of the wire collecting box, wherein a reinforcing seat is fixedly connected to one side face of the wire collecting box, a first hanging device is arranged on one side, away from the wire collecting box, of the reinforcing seat, the end part of the first hanging device is fixedly connected with the side face inside a sliding groove formed in the side face of the reinforcing seat through a supporting device, a sliding block is connected in the sliding groove in a sliding mode, the surface of the sliding block is fixedly connected with the side face inside the sliding groove through a first spring, the side face of the sliding block is fixedly connected with the surface of the first hanging device through a connecting device, an electromagnet is fixedly connected to the other side face of the wire collecting box, the electromagnet and the side face of the wire collecting box are connected with a same wire sleeve in a clamping mode, a steel strand is sleeved in, reel fixed connection has cup jointed the bearing on the surface of pivot, the bearing joint is in the inside side of receipts line box to the other end of pivot and the tip fixed connection of motor output shaft to the side of motor fuselage and the medial surface fixed connection who receives the line box, the other end fixedly connected with back seat of steel strand wires to fixedly connected with second hooking device on the side of steel strand wires is kept away from to the back seat.
The intelligent distance measuring sensor is characterized by further comprising an intelligent control system, wherein the intelligent control system comprises a microprocessor, the input end of the microprocessor is electrically connected with the output end of the distance measuring sensor, and the output end of the microprocessor is electrically connected with the input end of the alarm module.
The input end of the microprocessor is electrically connected with the output end of the switch module, the input end of the switch module is electrically connected with the output end of the power supply module, the output end of the power supply module is electrically connected with the input ends of the first switch and the second switch respectively, the output end of the first switch is electrically connected with the input end of the motor, and the output end of the second switch is electrically connected with the input end of the electromagnet.
The first hanging device comprises a first hook, the end part of the first hook is fixedly connected with one end of the supporting device, a first limiting spring bolt is movably connected to the inner side of the first hook, and a first torsion spring is arranged between the first limiting spring bolt and the first hook.
The supporting device comprises a telescopic rod and a second spring sleeved on the surface of the telescopic rod, one end of the second spring and one end of the telescopic rod are fixedly connected to the end portion of the first hook, and the other end of the telescopic rod and the other end of the second spring are fixedly connected to the side face inside the sliding groove.
The second hanging device comprises a second hook, the end part of the second hook is fixedly connected with the end part of the steel strand, a second limiting spring bolt is movably connected to the inner side of the second hook, and a second torsion spring is arranged between the second limiting spring bolt and the second hook.
The connecting device comprises two fixing seats, the end faces of the two fixing seats are fixedly connected with the side face of the sliding block and the surface of the first hook respectively, and the front faces of the two fixing seats are hinged to the back faces of the two end portions of the connecting rod respectively through two pin shafts.
The cross-sectional shape of spout is the T font, the cross-sectional shape of slider is the T font.
Method for operating a traction device of a transport machine with automatic adjustment, characterized in that:
step 1: respectively hooking a first hooking device and a second hooking device of a traction device between a tractor and a fault vehicle;
step 2: when the tractor pulls the fault car to normally walk, the running speed of the fault car is difficult to keep consistent with that of the tractor under the slight influence of external factors, and the first hanging device can drive the telescopic rod and the second spring in the supporting device to perform telescopic action on one hand, and can automatically adjust the tension between the hauling machine and the fault machine under the action of the elastic force of the second spring to protect the steel strand to a certain degree;
step 3: at the moment, the first hanging device drives the sliding block to slide in the sliding chute through the connecting device, the sliding block drives the first spring to stretch and retract in the sliding process, the deformation direction of the first spring is synchronous with that of the second spring, and a good buffering effect is achieved in a narrow space range;
step 4: when meetting the slope in the traction process, detect the interval between tractor and the trouble car often through the range finding inductor, and make the motor operation through first switch, its output shaft of motor in the in-process of operation can drive the reel through the pivot and carry out the rotation action, therefore just can be connected the steel strand wires that are located outside on the reel again by the winding, make the back seat be close to the direction of electro-magnet, the operation second switch makes the electro-magnet circular telegram, therefore just can adsorb the back seat steadily on the electro-magnet, make and transport machinery and trouble machinery between convert rigid connection into by flexible connection, effectively prevented to collide between the two.
The invention has the following beneficial effects:
1. according to the invention, through the mutual cooperation of the supporting device, the first spring, the sliding block, the sliding chute, the winding wheel, the motor, the electromagnet, the rear seat, the microprocessor, the alarm module and the ranging sensor, the tension between the hauling machine and the fault machine can be automatically adjusted, so that the steel strand can be protected to a certain extent, and the flexible connection between the hauling machine and the fault machine is converted into rigid connection, so that the rear-end collision or collision accident of flexible traction between the hauling machine and the fault machine is avoided.
2. According to the invention, the slide block and the sliding groove are arranged, and the cross sections of the slide block and the sliding groove are in T-shaped shapes, so that the first hanging device can be smoother in the process of utilizing the elasticity of the first spring, and the stability of the first hanging device can be improved.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic cross-sectional view of the front view of the present invention.
FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A.
Fig. 3 is an enlarged schematic structural view of the invention at B in fig. 2.
FIG. 4 is a schematic cross-sectional view of the wire-rewinding box according to the present invention.
FIG. 5 is a schematic sectional view of the chute of the present invention viewed from above.
FIG. 6 is a schematic diagram of the intelligent control system of the present invention.
In the figure: the wire winding device comprises a wire winding box 1, a reinforcing seat 2, a sliding groove 3, a sliding block 4, a first spring 5, a connecting device 6, a fixed seat 61, a pin shaft 62, a connecting rod 63, a first hooking device 7, a first hook 71, a first limit bolt 72, a first torsion spring 73, a supporting device 8, a telescopic rod 81, a second spring 82, a reel 9, a rotating shaft 10, a bearing 11, a motor 12, a steel strand 13, a wire sleeve 14, a backseat 15, a second hooking device 16, a second hook 161, a second limit bolt 162, a second torsion spring 163, an electromagnet 17, a microprocessor 18, a distance measuring sensor 19, an alarm module 20, a switch module 21, a power supply module 22, a second switch 23, a first switch 24 and an intelligent control system 25.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-6, the present invention provides a technical solution: the traffic machinery traction device with the automatic adjusting function comprises a wire-collecting box 1 and an intelligent control system 25 arranged on one side of the wire-collecting box 1, wherein a reinforcing seat 2 is fixedly connected on one side surface of the wire-collecting box 1, a first hanging device 7 is arranged on one side, far away from the wire-collecting box 1, of the reinforcing seat 2, through arranging the first hanging device 7 and a second hanging device 16, a first limiting bolt 72 and a second limiting bolt 162 are respectively arranged on a first hook 71 and a second hook 161, so that the phenomenon that the first hanging device 7 and the second hanging device 16 are separated from the connected traffic machinery can be prevented, the end part of the first hanging device 7 is fixedly connected with the side surface inside a sliding groove 3 formed in the side surface of the reinforcing seat 2 through a supporting device 8, through arranging the supporting device 8, on one hand, the first hanging device 7 can drive a telescopic rod 81 and a second spring 82 in the supporting device 8 to perform telescopic action, under the action of the elastic force of the second spring 82, the tension between the hauling machine and the fault machine can be automatically adjusted, so that the steel strand 13 can be protected to a certain extent, the sliding block 4 is connected in the sliding groove 3 in a sliding manner, the sliding block 4 and the sliding groove 3 are arranged, the cross sections of the sliding block 4 and the sliding groove 3 are both T-shaped, the first hanging device 7 can be more smooth in the process of utilizing the elasticity of the first spring 5, the stability of the first hanging device 7 can be improved, the surface of the sliding block 4 is fixedly connected with the side surface inside the sliding groove 3 through the first spring 5, the sliding block 4 can drive the first spring 5 to perform telescopic action in the sliding process through the arrangement of the first spring 5, the deformation direction of the first spring 5 is synchronous with the deformation direction of the second spring 82, and therefore, a good buffering effect can be achieved in a narrow space range, the side surface of the sliding block 4 is fixedly connected with the surface of the first hanging device 7 through the connecting device 6, the other side surface of the take-up box 1 is fixedly connected with an electromagnet 17, the electromagnet 17 is electrified through the arrangement of the electromagnet 17, so that the rear seat 15 can be stably adsorbed on the electromagnet 17, the flexible connection between the hauling machine and the fault machine is converted into rigid connection, the rear-end collision or collision accident of flexible traction between the hauling machine and the fault machine is avoided, the same wire sleeve 14 is clamped on the side surfaces of the electromagnet 17 and the take-up box 1, the steel stranded wire 13 is sheathed in the wire sleeve 14, the wire sleeve 14 can remove impurities adhered to the surface of the steel stranded wire 13 through the arrangement of the wire sleeve 14, so that the steel stranded wire 13 can be protected to a certain extent, one end of the steel stranded wire 13 is wound and connected on the surface of the reel 9, and the reel 9 is fixedly connected on the surface of the rotating, bearing 11 has been cup jointed to the one end of pivot 10, and bearing 11 joint is in the inside side of receiving line box 1, the other end of pivot 10 and the tip fixed connection of motor 12 output shaft, through setting up motor 12, its output shaft of motor 12 in the in-process of operation can drive reel 9 through pivot 10 and carry out the rotation action, therefore just can be connected the steel strand wires 13 that are located the outside on reel 9 again, make backseat 15 be close to the direction of electro-magnet 17, and the side of motor 12 fuselage and the medial surface fixed connection who receives line box 1, the other end fixedly connected with backseat 15 of steel strand wires 13, and backseat 15 keeps away from fixedly connected with second hooking device 16 on the side of steel strand wires 13.
Further, the intelligent control system 25 comprises a microprocessor 18, an input end of the microprocessor 18 is electrically connected with an output end of the distance measuring sensor 19, and an output end of the microprocessor 18 is electrically connected with an input end of the alarm module 20.
Specifically, as shown in fig. 6, an input end of the microprocessor 18 is electrically connected to an output end of the switch module 21, an input end of the switch module 21 is electrically connected to an output end of the power supply module 22, an output end of the power supply module 22 is electrically connected to input ends of the first switch 24 and the second switch 23, an output end of the first switch 24 is electrically connected to an input end of the motor 12, and an output end of the second switch 23 is electrically connected to an input end of the electromagnet 17.
Specifically, as shown in fig. 2, the first hooking device 7 includes a first hook 71, an end of the first hook 71 is fixedly connected to one end of the supporting device 8, a first limit latch 72 is movably connected to an inner side of the first hook 71, and a first torsion spring 73 is disposed between the first limit latch 72 and the first hook 71.
Specifically, as shown in fig. 2, the supporting device 8 includes an expansion link 81 and a second spring 82 sleeved on the surface of the expansion link 81, one end of the second spring 82 and one end of the expansion link 81 are both fixedly connected to the end of the first hook 71, and the other end of the expansion link 81 and the other end of the second spring 82 are both fixedly connected to the side surface inside the chute 3.
Specifically, as shown in fig. 1, the second hooking device 16 includes a second hook 161, an end of the second hook 161 is fixedly connected to an end of the steel strand 13, a second limit latch 162 is movably connected to an inner side of the second hook 161, and a second torsion spring 163 is disposed between the second limit latch 162 and the second hook 161.
Specifically, as shown in fig. 2, the connecting device 6 includes two fixing bases 61, end surfaces of the two fixing bases 61 are respectively and fixedly connected to a side surface of the slider 4 and a surface of the first hook 71, and front surfaces of the two fixing bases 61 are respectively hinged to back surfaces of two end portions of the connecting rod 63 through two pins 62.
Specifically, as shown in fig. 5, the chute 3 has a T-shaped cross section, and the slider 4 has a T-shaped cross section.
Example 2:
method for operating a traction device of a transport machine with automatic adjustment, characterized in that:
step 1: hooking a first hitching device 7 and a second hitching device 16 of a traction device between a towing vehicle and a fault vehicle respectively;
step 2: when the tractor pulls the fault car to normally walk, the running speed of the fault car is difficult to keep consistent with that of the tractor under the slight influence of external factors, and the first hanging device 7 can drive the telescopic rod 81 and the second spring 82 in the supporting device 8 to perform telescopic action on one hand, and can automatically adjust the tension between the hauling machine and the fault machine under the action of the elastic force of the second spring 82, so that the steel strand 13 is protected to a certain extent;
step 3: at the moment, the first hanging device 7 drives the sliding block 4 to slide in the sliding chute 3 through the connecting device 6, the sliding block 4 drives the first spring 5 to perform telescopic action in the sliding process, and the deformation direction of the first spring 5 is synchronous with that of the second spring 82, so that a good buffering effect is achieved in a narrow space range;
step 4: when encountering a slope in the traction process, the distance between the tractor and a fault vehicle is detected through the ranging sensor 19, the motor 12 is enabled to run through the first switch 24, the output shaft of the motor 12 can drive the reel 9 to rotate through the rotating shaft 10 in the running process, so that the steel strand 13 positioned outside can be wound on the reel 9 again, the rear seat 15 is enabled to approach to the electromagnet 17, the second switch 23 is operated to enable the electromagnet 17 to be electrified, the rear seat 15 can be stably adsorbed on the electromagnet 17, the flexible connection between the hauling machine and the fault machine is enabled to be converted into rigid connection, and collision between the hauling machine and the fault machine is effectively prevented.
The working principle is as follows: when in use, in the process that the hauling machine drives the fault machine to move through the traction device, the running speed of the fault machine is difficult to keep consistent with that of the hauling machine under the influence of various factors, at the moment, the first hanging device 7 can drive the telescopic rod 81 and the second spring 82 in the supporting device 8 to perform telescopic action on one hand, and under the action of the elastic force of the second spring 82, the pulling force between the hauling machine and the fault machine can be automatically adjusted, so that the steel strand 13 can be protected to a certain extent, in the process, the first hanging device 7 can drive the sliding block 4 to slide in the sliding groove 3 through the connecting device 6, the sliding block 4 can drive the first spring 5 to perform telescopic action in the sliding process, and the deformation direction of the first spring 5 is synchronous with that of the second spring 82, so that a good buffering effect can be achieved in a narrow space range, therefore, the space occupation ratio of the traction device can be reduced to a certain extent, the traction device is convenient to store, when the hauling machine and the fault machine meet a slope, the first switch 24 is operated to enable the motor 12 to operate, the output shaft of the motor 12 can drive the reel 9 to rotate through the rotating shaft 10 in the operation process, the steel strand 13 positioned outside can be wound on the reel 9 again, the rear seat 15 is enabled to be close to the electromagnet 17, the second switch 23 is operated to enable the electromagnet 17 to be electrified, the rear seat 15 can be stably adsorbed on the electromagnet 17, the flexible connection between the hauling machine and the fault machine is enabled to be converted into rigid connection, and the rear-end collision or collision accident of flexible traction between the hauling machine and the fault machine is avoided.
Claims (7)
1. The traffic machinery traction device with the automatic adjusting function comprises a wire collecting box (1) and an intelligent control system (25) arranged on one side of the wire collecting box (1), and is characterized in that a reinforcing seat (2) is fixedly connected to one side face of the wire collecting box (1), a first hanging device (7) is arranged on one side, away from the wire collecting box (1), of the reinforcing seat (2), the end portion of the first hanging device (7) is fixedly connected with the side face inside a sliding groove (3) formed in the side face of the reinforcing seat (2) through a supporting device (8), a sliding block (4) is connected in the sliding groove (3), the surface of the sliding block (4) is fixedly connected with the side face inside the sliding groove (3) through a first spring (5), the side face of the sliding block (4) is fixedly connected with the surface of the first hanging device (7) through a connecting device (6), and an electromagnet (17) is fixedly connected to the other side face of the wire collecting box (1), the side surfaces of the electromagnet (17) and the take-up box (1) are clamped with the same wire sleeve (14), a steel strand (13) is sleeved in the wire sleeve (14), one end of the steel strand (13) is wound and connected to the surface of the reel (9), the reel (9) is fixedly connected to the surface of the rotating shaft (10), one end of the rotating shaft (10) is sleeved with the bearing (11), the bearing (11) is clamped and connected to the side surface inside the take-up box (1), the other end of the rotating shaft (10) is fixedly connected with the end part of an output shaft of the motor (12), the side surface of the body of the motor (12) is fixedly connected with the inner side surface of the take-up box (1), the other end of the steel strand (13) is fixedly connected with the rear seat (15), and a second hanging device (16) is fixedly connected to one side surface, far away from the steel strand (;
the intelligent distance measuring system is characterized by further comprising an intelligent control system (25), wherein the intelligent control system (25) comprises a microprocessor (18), the input end of the microprocessor (18) is electrically connected with the output end of the distance measuring sensor (19), and the output end of the microprocessor (18) is electrically connected with the input end of the alarm module (20);
the input end of the microprocessor (18) is electrically connected with the output end of the switch module (21), the input end of the switch module (21) is electrically connected with the output end of the power supply module (22), the output end of the power supply module (22) is electrically connected with the input ends of the first switch (24) and the second switch (23), the output end of the first switch (24) is electrically connected with the input end of the motor (12), and the output end of the second switch (23) is electrically connected with the input end of the electromagnet (17).
2. The traction device with automatic adjustment function for a transportation machine according to claim 1, wherein: the first hanging device (7) comprises a first hook (71), the end of the first hook (71) is fixedly connected with one end of the supporting device (8), a first limiting bolt (72) is movably connected to the inner side of the first hook (71), and a first torsion spring (73) is arranged between the first limiting bolt (72) and the first hook (71).
3. The traction device with automatic adjustment function for a transportation machine according to claim 1, wherein: strutting arrangement (8) include telescopic link (81) and cup joint second spring (82) on telescopic link (81) surface, the equal fixed connection of one end of second spring (82) and telescopic link (81) is at the tip of first couple (71), the equal fixed connection of the other end of telescopic link (81) and second spring (82) is in the inside side of spout (3).
4. The traction device with automatic adjustment function for a transportation machine according to claim 1, wherein: the second hanging device (16) comprises a second hook (161), the end of the second hook (161) is fixedly connected with the end of the steel strand (13), a second limit bolt (162) is movably connected to the inner side of the second hook (161), and a second torsion spring (163) is arranged between the second limit bolt (162) and the second hook (161).
5. The traction device with automatic adjustment function for a transportation machine according to claim 1, wherein: the connecting device (6) comprises two fixing seats (61), the end faces of the two fixing seats (61) are fixedly connected with the side face of the sliding block (4) and the surface of the first hook (71) respectively, and the front faces of the two fixing seats (61) are hinged to the back faces of the two end portions of the connecting rod (63) through two pin shafts (62).
6. The traction device with automatic adjustment function for a transportation machine according to claim 1, wherein: the cross-sectional shape of spout (3) is the T font, the cross-sectional shape of slider (4) is the T font.
7. The method of operating a traction device for a vehicle with automatic adjustment function according to any one of claims 1 to 6, characterized in that:
step 1: respectively hooking a first hooking device (7) and a second hooking device (16) of a traction device between a tractor and a fault vehicle;
step 2: when the tractor pulls the fault car to normally walk, the running speed of the fault car is difficult to keep consistent with that of the tractor under the slight influence of external factors, and the first hanging device (7) can drive the telescopic rod (81) and the second spring (82) in the supporting device (8) to perform telescopic action on one hand, and can automatically adjust the tension between the hauling machine and the fault machine under the action of the elastic force of the second spring (82), so that the steel strand (13) is protected to a certain extent;
step 3: at the moment, the first hanging device (7) drives the sliding block (4) to slide in the sliding groove (3) through the connecting device (6), the sliding block (4) drives the first spring (5) to stretch and retract in the sliding process, the deformation direction of the first spring (5) is synchronous with that of the second spring (82), and a good buffering effect is achieved in a narrow space range;
step 4: when the towing machine runs on a slope, the distance between the towing machine and a fault vehicle is detected in real time through the distance measuring sensor (19), the motor (12) is driven to run through the first switch (24), the output shaft of the motor (12) can drive the reel (9) to rotate through the rotating shaft (10) in the running process, so that the steel strand (13) located outside can be wound on the reel (9) again, the rear seat (15) is close to the electromagnet (17), the electromagnet (17) is electrified by operating the second switch (23), the rear seat (15) can be stably adsorbed on the electromagnet (17), the flexible connection between the towing machine and the fault machine is converted into the rigid connection, and collision between the towing machine and the fault machine is effectively prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038282.XA CN111114218B (en) | 2020-01-14 | 2020-01-14 | Traffic machinery traction device with automatic adjusting function and operation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038282.XA CN111114218B (en) | 2020-01-14 | 2020-01-14 | Traffic machinery traction device with automatic adjusting function and operation method |
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| CN111114218A CN111114218A (en) | 2020-05-08 |
| CN111114218B true CN111114218B (en) | 2021-05-14 |
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| CN113183692A (en) * | 2021-04-30 | 2021-07-30 | 陶勇 | Device for trailer |
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| CN108068564A (en) * | 2016-11-10 | 2018-05-25 | 法乐第(北京)网络科技有限公司 | The control method and device of a kind of traction rope |
| CN110031844A (en) * | 2017-12-01 | 2019-07-19 | 德尔福技术有限责任公司 | Detection system |
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| CN108909379A (en) * | 2018-07-18 | 2018-11-30 | 李珂 | A kind of Trailer equipment with bidirectional buffering function |
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| CN209786946U (en) * | 2019-06-25 | 2019-12-13 | 山东众泰防爆电机有限公司 | Novel explosion-proof motor shock attenuation device |
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