Intelligent locking device for steel wire rope

Abstract

The utility model provides a steel wire rope intelligence locking device, including fixed plate, motor, winding roll, ratchet wheel, shift fork, telescopic link, motor is fixed in the rear side of fixed plate, winding roll is fixed in the front side of fixed plate and is connected with the output end of motor, ratchet wheel is fixedly connected with winding roll, one side of ratchet wheel is equipped with the telescopic link, and the telescopic link is equipped with the shift fork. A movable block is arranged at the movable end of the telescopic rod, a roller rotationally connected with the movable block is arranged on the inner side of the movable block, a sliding groove is formed in one end of the shifting fork, a pawl part matched with the ratchet wheel is arranged at the other end of the shifting fork, the middle of the shifting fork is hinged to the fixing plate, and the roller is arranged in the sliding groove and slidably connected with the sliding groove. The motor monitors the rotating speed of the winding roll, and the movable end of the telescopic rod stretches out or retracts back according to the monitoring result. The intelligent locking device can intelligently lock the steel wire rope under the emergency conditions of overload, power failure and the like of the steel wire rope, has a safe locking function, effectively guarantees the safety of a user, and improves the operation safety.

Description

Technical Field

[0001] The utility model relates to the technical field of exoskeleton robot auxiliary equipment, in particular to an intelligent steel wire rope locking device applied to an exoskeleton robot. Background Art

[0002] With the rapid development of science and technology, robots are increasingly used in life. Exoskeleton robots currently play a very important role in the fields of industry, medical treatment, military, firefighting, etc. The working principle of exoskeleton robots is to provide power through a power source, match it with a transmission device, and finally convert the power into assistance for the human body to achieve the target action, thereby achieving the assistance effect. Rope drive, as a transmission method with a small size and high load-bearing capacity, is widely used in the field of exoskeleton robots.

[0003] The current wire rope locking mechanism on the rope drive can generally only ensure unidirectional movement of the wire rope, but requires manual mechanical adjustment to enable reverse movement. It is large in size, high in cost, low in efficiency, and has a relatively slow response speed. The wire rope in the exoskeleton robot needs to quickly switch between bidirectional movements according to the actual working conditions, while also ensuring the safety locking function in the event of overload, power failure, and other situations where the wire rope quickly slips. Therefore, when the load used is greater than the rated load of the robot or the robot suddenly loses power, the heavy object can easily fall quickly due to insufficient traction, posing a great hidden danger to user safety. Utility Model Content

[0004] The utility model aims to provide an intelligent locking device for a steel wire rope to overcome the deficiencies in the prior art.

[0005] To solve the above technical problems, the technical solution of the utility model is: a kind of intelligent locking device for wire rope, including a fixed plate, a motor, a cable drum, a ratchet, a fork, and a telescopic rod, the motor is fixed on the rear side of the fixed plate, the cable drum is arranged on the front side of the fixed plate and is connected to the output end of the motor, the ratchet is fixedly connected to the cable drum, a telescopic rod is arranged on one side of the ratchet, a movable end of the telescopic rod is provided with a movable block, a roller rotatably connected thereto is arranged on the inner side of the movable block, a slide groove is arranged at one end of the fork, and a ratchet claw part matching the ratchet is arranged at the other end, the middle part of the fork is hinged to the fixed plate, the roller is arranged in the slide groove and is slidably connected to the slide groove; the motor monitors the rotation speed of the cable drum, and the movable end of the telescopic rod is extended or retracted according to the monitoring result.

[0006] Furthermore, the above-mentioned intelligent locking device for wire rope also includes an electromagnet, and the telescopic rod is inserted into the electromagnet, and the movable end of the telescopic rod is driven to retract or extend by turning the electromagnet on and off.

[0007] Furthermore, in the above-mentioned intelligent locking device for wire rope, the roller is arranged on the connecting shaft, one end of the connecting shaft is inserted into the movable block and fixedly connected to the movable block by a locking screw, and the roller is arranged at the end of the connecting shaft extending out of the movable block.

[0008] Furthermore, in the above-mentioned intelligent locking device for steel wire rope, a sleeve is provided between the middle part of the pulling fork and the fixed plate, and the pulling fork is hinged to the fixed plate by means of screws passing through the sleeve.

[0009] Furthermore, in the above-mentioned intelligent locking device for wire rope, a wire protection sleeve is provided on the outer side of the wire reel, and the wire protection sleeve is fixed on the fixing plate and covers the groove on the outer side of the wire reel for winding the wire rope.

[0010] Furthermore, in the above-mentioned intelligent locking device for wire rope, a wire hole is also provided on one side of the wire sheath, and the wire hole is arranged in a one-to-one correspondence with the groove on the outer side of the winding drum for winding the wire rope.

[0011] Furthermore, in the above-mentioned intelligent locking device for steel wire rope, a cover plate is also provided at the outer end of the winding drum, and the cover plate closes the front opening of the wire sheath.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the utility model can not only quickly realize the switching of the two-way movement of the wire rope, but also can intelligently lock the wire rope in sudden situations such as wire rope overload and power failure. It has a safety locking function, effectively protects user safety, improves operational safety, and also has the advantages of compact structure, low cost, high efficiency, and fast response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the intelligent locking device for steel wire ropes of the utility model;

[0015] Figure 2 The local structure diagram of the intelligent locking device for steel wire rope of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 3 The local structure diagram of the intelligent locking device for steel wire rope of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 4This is a schematic diagram of the wire hole of the intelligent locking device for steel wire ropes of the utility model;

[0018] In the figure: 1. fixed plate; 2. motor; 3. winding drum; 4. ratchet; 5. pulling fork; 6. telescopic rod; 7. movable block; 8. roller; 9. slide groove; 10. electromagnet; 11. connecting shaft; 12. cushion sleeve; 13. wire protection sleeve; 14. wire hole; 15. cover plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] like Figure 1-4 As shown, a wire rope intelligent locking device comprises a fixed plate 1, a motor 2, a cable drum 3, a ratchet 4, a fork 5, and a telescopic rod 6. The motor 2 is fixed on the rear side of the fixed plate 1, the cable drum 3 is arranged on the front side of the fixed plate 1 and is connected to the output end of the motor 2, the ratchet 4 is fixedly connected to the cable drum 3, a telescopic rod 6 is arranged on one side of the ratchet 4, a movable end of the telescopic rod 6 is provided with a movable block 7, a roller 8 rotatably connected thereto is arranged on the inner side of the movable block 7, the fork 5 is V-shaped, one end of which is provided with a slide groove 9, and the other end is provided with a pawl part matched with the ratchet 4, the middle part of the fork 5 is hinged to the fixed plate 1, the roller 9 is arranged in the slide groove 9 and is slidably connected to the slide groove 9, in this embodiment, the roller 8 adopts a bearing; the motor 2 monitors the rotation speed of the cable drum 3, and the movable end of the telescopic rod 6 is extended or retracted according to the monitoring result; the telescopic rod 6 is inserted in the electromagnet 10, and the movable end of the telescopic rod 6 is retracted or extended by the on-off of the electromagnet 10. Specifically, when the electromagnet 10 is powered on, the movable end of the telescopic rod 6 is retracted, and when the electromagnet 10 is powered off, the movable end is extended.

[0022] The exoskeleton robot is provided with a controller. When the controller receives a signal to lift or lower a heavy object, the electromagnet 10 is energized, and the movable end of the telescopic rod 6 moves downward and retracts, driving the movable block 7 to move downward, thereby driving the pawl part of the fork 5 to rotate, so that the pawl part is disengaged from the ratchet 4, and then the motor 2 is started to drive the winding drum 3 to rotate clockwise or counterclockwise, thereby retracting and releasing the wire rope, and the switching of the two-way movement of the wire rope can be quickly realized, thereby achieving the purpose of lifting or lowering the heavy object. When the exoskeleton robot is overloaded, the wire rope falls rapidly due to external force, driving the winding drum 3 to rotate rapidly. The motor 2 detects that the descent speed is too fast and sends a signal to the controller. The controller controls the electromagnet 10 to lose power according to the sent signal, so that the movable end of the telescopic rod 6 moves upward and extends, driving the movable block to move upward, thereby driving the pawl part of the fork 5 to rotate, so that the pawl part is inserted into the slot of the ratchet 4, and cooperates with the ratchet 4 to lock the winding drum 3, thereby locking the wire rope, so that the heavy object no longer falls; when the exoskeleton robot suddenly loses power, the controller controls the electromagnet 10 to lose power. Similarly, the fork 5 cooperates with the ratchet 4 to lock the winding drum, thereby locking the wire rope, so that the heavy object no longer falls. In summary, the utility model can not only quickly realize the switching of the two-way movement of the wire rope, but also can intelligently lock the wire rope in sudden situations such as wire rope overload and power failure. It has a safety locking function, effectively protects user safety, improves operational safety, and also has the advantages of compact structure, low cost, high efficiency, and fast response speed.

[0023] Example 2

[0024] Based on the structure of Example 1, Figure 1-3 As shown, the roller 8 is arranged on the connecting shaft 11, one end of the connecting shaft 11 is inserted into the movable block 7 and fixedly connected to the movable block 7 by a locking screw, and the roller 8 is arranged at the end of the connecting shaft 11 extending out of the movable block. The structure is simple and the installation is easy.

[0025] like Figure 1-3 As shown, a cushion sleeve 12 is provided between the middle of the fork 5 and the fixing plate 1, and the fork 5 is hinged to the fixing plate 1 by screws passing through the cushion sleeve 12. The structure is simple and the installation is convenient.

[0026] like Figure 1 , 4 As shown, a wire sheath 13 is provided on the outer side of the winding drum 3, and the wire sheath 13 is fixed on the fixing plate 1 and covers the groove on the outer side of the winding drum 3 for winding the wire rope. A cover plate 15 is also provided on the outer end of the winding drum 3, and the cover plate 15 closes the front opening of the wire sheath 13. The wire sheath 13 and the cover plate 15 cooperate to protect the wire rope and prevent the wire rope from slipping out of the corresponding groove of the winding drum 3.

[0027] like Figure 4As shown, a wire hole 14 is also provided on one side of the wire sheath 13, and the wire hole 14 is arranged one-to-one with the groove for winding the wire rope on the outer side of the winding drum 3. In this embodiment, two wire holes 14 are provided to guide the wire rope, so that the lifting or lowering of the wire rope is more stable.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel wire rope intelligent locking device, characterized in that: It includes a fixed plate, a motor, a cable reel, a ratchet, a fork, and a telescopic rod, the motor is fixed on the rear side of the fixed plate, the cable reel is arranged on the front side of the fixed plate and is connected to the output end of the motor, the ratchet is fixedly connected to the cable reel, a telescopic rod is arranged on one side of the ratchet, a movable end of the telescopic rod is provided with a movable block, a roller rotatably connected thereto is arranged on the inner side of the movable block, a slide groove is arranged at one end of the fork, and a ratchet claw part matching with the ratchet is arranged at the other end, the middle part of the fork is hinged to the fixed plate, the roller is arranged in the slide groove and is slidably connected to the slide groove; the motor monitors the rotation speed of the cable reel, and the movable end of the telescopic rod extends or retracts according to the monitoring result.

2. The intelligent locking device for steel wire rope according to claim 1, characterized in that: It also includes an electromagnet, in which the telescopic rod is inserted, and the movable end of the telescopic rod is driven to retract or extend by turning the electromagnet on and off.

3. The intelligent locking device for steel wire rope according to claim 1, characterized in that: The roller is arranged on the connecting shaft, one end of which is inserted into the movable block and fixedly connected to the movable block by a locking screw, and the roller is arranged at the end of the connecting shaft extending out of the movable block.

4. The intelligent locking device for steel wire rope according to claim 1, characterized in that: A cushion sleeve is provided between the middle part of the shift fork and the fixing plate, and the shift fork is hinged to the fixing plate by means of screws passing through the cushion sleeve.

5. The intelligent locking device for steel wire rope according to any one of claims 1 to 4, characterized in that: The outer side of the winding drum is provided with a wire protection sleeve, which is fixed on the fixing plate and covers the groove on the outer side of the winding drum for winding the steel wire rope.

6. The intelligent locking device for steel wire rope according to claim 5, characterized in that: A wire hole is also provided on one side of the wire protection sleeve, and the wire hole is arranged in a one-to-one correspondence with the groove on the outer side of the winding drum for winding the wire rope.

7. The intelligent locking device for steel wire rope according to claim 5, characterized in that: A cover plate is also provided at the outer end of the cable reel, and the cover plate closes the front opening of the cable sheath.

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