An automatic protection mechanism for cable winch

Abstract

The present invention relates to an automatic protection mechanism for a cable winch, comprising a handle frame connected to the winch, a motor synchronous moving assembly arranged on the upper part of the handle frame and a wire-receiving motor arranged on the motor synchronous moving assembly, a reciprocating translation transmission assembly arranged on the lower part of the handle frame for controlling the lateral reciprocating movement of the wire-receiving motor, a wire-receiving transmission mechanism connected to the output shaft of the wire-receiving motor, and an automatic disconnection mechanism triggered by the increase of traction resistance reaching a limit value during the wire-receiving process. The device of the present invention is installed in an existing winch, and the wire-receiving of the cable line is changed from the original direct winch winding to first winding through the automatic protection mechanism and then winding by the winch. The difference from the prior art is that the automatic disconnection mechanism of a mechanical structure is arranged in the device, and the reliability is significantly enhanced. When a foreign object is entangled in the wire and generates resistance, the automatic disconnection mechanism is actuated to make the wire-receiving invalid, thereby protecting the cable from being damaged.

Description

Technical Field

[0001] The invention belongs to the technical field of winch accessories, and in particular relates to an automatic protection mechanism for a cable winch. Background Art

[0002] Some outdoor temporary electrical equipment requires a considerable length of cable. When storing the electrical equipment, a winch is needed to collect the cable. The traction force required for collecting the cable is not high, so the winches on the market can basically meet the use requirements. However, unlike other traction ropes, the cable needs to be stopped immediately when it is entangled during collection, otherwise the cable is easily damaged. This requires the user to always pay attention to the winch's reeling dynamics, so as to shut down the winch in time when the cable is tangled or foreign objects are dragged.

[0003] The Chinese invention patent application document with application publication number CN105923467A discloses an intelligent cable winch device, including: a winch reel, which is used to reel in and out the cable; a motor, which is provided with a motor driver, the motor is electrically connected to the winch reel, and controls the rotation of the winch reel; a tension sensor, which is electrically connected to the winch reel, collects the tension information of the cable, and realizes automatic reeling in and out under a constant cable tension state. This technical solution uses a tension sensor to detect the cable tension and control the stop of the winch, but the reliability of electronic components in outdoor use will be seriously reduced, and failure is very likely to occur. Summary of the invention

[0004] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide an automatic protection mechanism for a cable winch, which can be installed in the winch to provide a cable guide rope for the winch while providing blockage protection.

[0005] The inventive object of the present invention is achieved through the following technical solutions: an automatic protection mechanism for a cable winch, comprising a handle frame connected to the winch, a motor synchronous moving component arranged on the upper part of the handle frame and a wire-receiving motor arranged on the motor synchronous moving component, a reciprocating translation transmission component arranged at the lower part of the handle frame for controlling the lateral reciprocating movement of the wire-receiving motor, a wire-receiving transmission mechanism connected to the output shaft of the wire-receiving motor, and an automatic disconnection mechanism triggered when the traction resistance increases and reaches a limit value during the wire-receiving process.

[0006] Preferably, a cable winder is provided below the take-up transmission mechanism, and the cable winder also includes a cable winder seat plate connected to the capstan; the cable winder seat plate is in the shape of a plate as a whole, and has an obtuse folded edge, which forms two relatively upper and lower areas after folding, and a group of track sliding balance components are provided in the upper plane installation area, and a long reciprocating guide groove is provided in the lower plane installation area, and the cross-section of the edge of the reciprocating guide groove is an arc, and a sliding guide member matching the arc and capable of sliding tightly is provided in the arc edge;

[0007] The sliding guide is fixedly connected to the slider of the track sliding balance assembly by setting a plate body connector. The center of the sliding guide is a cylinder, and a through hole is provided in the center of the cylinder for the cable to pass through. The edges of both ends of the hole have arc chamfers, and a number of flexible support members are provided on the circumference of the cylinder. When the cable flows in the through hole, the cylinder can have a certain swing amplitude under the support of the flexible support member to reduce the vibration caused by the cable flowing up and down.

[0008] Preferably, the wire-reeling transmission mechanism includes a continuous wire-reeling component and an intermittent wire-reeling component and a switching component for switching between the two, and also includes a wire-reeling execution component.

[0009] The continuous wire take-up assembly includes a wire take-up assembly mounting frame which is substantially in the shape of a wire take-up assembly fixedly connected to a slider in a track sliding balance assembly, a movable shaft installed in the wire take-up assembly mounting frame, a first synchronous wheel installed in the movable shaft, a second synchronous wheel fixedly connected to an output shaft of a wire take-up motor, and a first synchronous belt which connects the first synchronous wheel and the second synchronous wheel by belt transmission; the lower part of the lead screw nut in the reciprocating translation transmission assembly is fixedly connected to the wire take-up assembly mounting frame by setting a frame connecting piece;

[0010] The intermittent take-up assembly includes a single-stage flywheel installed in a movable shaft, a cam fixedly connected to the output shaft of the take-up motor, and a reciprocating chain belt that connects the single-stage flywheel and the cam in a one-way chain transmission; the single-stage flywheel is set to rotate clockwise for effectiveness and counterclockwise for idle rotation; the reciprocating chain belt is in the shape of a long strip as a whole, with a single-sided slat at one end and a rectangular cross-section and three-sided frame at the other end. A chain belt matching the tooth shape of the single-stage flywheel is fixed in the frame body, and the frame body has a long waist-shaped hole on the side relative to the slat. Designing two take-up modes to share multiple components has many advantages in terms of space, material cost, and ease of use.

[0011] Preferably, the switching assembly includes a limit lifting rod with one end slidably connected to the waist-shaped hole, a slider seat arranged in the wire-receiving assembly mounting frame, a switching slider installed in the slider seat, and a switching knob arranged above the slider seat and threadedly connected to the two; the threaded end of the switching knob is connected to the switching slider, and the other end of the limit lifting rod is connected to the switching slider;

[0012] The switching assembly also includes a synchronous belt tensioning mechanism arranged in the wire-receiving assembly mounting frame, which includes a first tensioning wheel pressed against the first synchronous belt, a transfer arm rotatably connected to the first tensioning wheel at one end and provided with a roller at the other end, and a lifting elastic part having a certain clearance with the roller of the transfer arm; the middle part of the transfer arm is hinged to the wire-receiving assembly mounting frame, and an elastic part pressed against the transfer arm is arranged on the side of the hinge point close to the first tensioning wheel; the elastic part makes the first tensioning wheel always pressed against the first synchronous belt and makes the roller of the transfer arm contact the upper part of the lifting elastic part with a gap at the lower part. The gap provides elastic space for the first tensioning wheel, so that the tension degree can also change when the force on the belt changes; here, the first synchronous belt is in a relaxed state when the first tensioning wheel is not sufficiently pressed;

[0013] Preferably, the wire take-up assembly mounting frame is provided with a back support seat on one side thereof facing the frame body connecting member, and the movable shaft is arranged in front of the back support seat;

[0014] The automatic disconnection mechanism includes a movable through hole arranged in the two side walls of the wire take-up assembly mounting frame, and an elastic shaft seat hinged in the back support seat; the movable through hole is used to install the movable shaft, and the hinge point of the elastic shaft seat is higher than the axis of the movable shaft;

[0015] The automatic disconnection mechanism also includes a reset component in front of the movable shaft; the reset component includes a reset waist hole arranged on a side wall of the take-up component mounting frame and located obliquely below the movable through hole, a reset push block abutting against the inner wall of the take-up component mounting frame, a guide movable shaft with one end passing through the reset push block and partially exposed and the other end movably installed in the reset waist hole and partially exposed, a reset rotary switch installed in front of the take-up component mounting frame, a fixed mounting block for installing the reset rotary switch, two tension springs arranged at both ends of the guide movable shaft, and a guide plate arranged at the lower part of the reset push block and fixed on the inner wall of the take-up component mounting frame. The purpose of this setting is that when the automatic disconnection mechanism is in the disconnected state, that is, the movable shaft falls on the lower part of the movable through hole, the reset rotary switch is turned to reset, and the reset rotary switch pushes the reset push block to overcome the tension of the two tension springs and move forward until its inclined movable shaft contacts, and the reset push block continues to be turned to push the movable shaft forward. At this time, the guide movable shaft is guided by the guide plate and the reset waist hole, and the reset push block as a whole is tilted upward, thereby moving the movable shaft upward until the movable shaft re-enters the upper part of the movable through hole to complete the reset. Then the reset rotary switch is turned in the opposite direction to return the reset push block to the initial position. It should be pointed out that when the elastic shaft seat used has a large elastic force, the reset component needs to be further set on the outer wall of the other side of the take-up component mounting frame, so that both sides can be operated simultaneously during the reset action to complete the reset more easily.

[0016] Preferably, the front of the reset push block has an inclined surface, and two rollers are provided at the lower part, the two rollers are installed on the upper surface of the guide plate, one end of the two tension springs are respectively connected to the two ends of the guide movable shaft, and the other ends of the two tension springs are connected to the two ends of the fixed mounting block; the reset rotary switch and the reset push block are hinged; the reset waist hole and the guide plate are horizontally set at one end close to the reset rotary switch, and the other end is inclined upward at the same angle.

[0017] As preferred, the handle frame comprises handles on both sides and a flat plate in the middle. The handles on both sides are respectively connected to the winch to form a good whole.

[0018] Preferably, the device further comprises a movable connecting member having one end fixedly connected to a slider in the motor synchronous moving assembly and the other end fixedly connected to a screw nut in the reciprocating translation transmission assembly; the movable connecting member passes through the flat plate, and a long strip opening for the movable connecting member to move is provided at a corresponding position of the flat plate. The upper and lower spaces of the flat plate are used to make the overall structure as compact as possible.

[0019] In summary, the present invention has the following advantages compared with the prior art:

[0020] The device of the present invention is installed in the existing winch, and the cable winding is changed from the original direct winch winding to first winding through the automatic protection mechanism and then winding by the winch. Different from the prior art, the device is provided with an automatic disconnection mechanism of a mechanical structure, and the reliability is significantly enhanced. When the foreign body is entangled in the wire and resistance is generated, the automatic disconnection mechanism is activated to make the winding ineffective, thereby protecting the cable from damage. In addition, a cable winding device is provided, and the cable winding device and the winding transmission mechanism move synchronously, which can better realize the winding of the winding drum. The overall structure is connected to the existing winch by the provided handle frame, which is convenient to install and has good integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention after the handle frame is hidden;

[0023] Figure 3 It is a structural schematic diagram of another viewing angle of the present invention after the flat joint plate is hidden;

[0024] Figure 4 It is a schematic diagram of the structure after the continuous wire-receiving assembly, the intermittent wire-receiving assembly, the switching assembly and the conducting wheel kit are combined;

[0025] Figure 5 It is a structural schematic diagram of the wire-receiving transmission mechanism;

[0026] Figure 6 is a schematic diagram of the structure of the switching component;

[0027] Figure 7 It is a schematic diagram of the structure after the reset component and the switching component are combined;

[0028] Figure 8 It is a schematic diagram of the state of the reset component when it is in action;

[0029] Fig. 9 It is a schematic diagram of the structure of the present invention installed in a winch.

[0030] Markings in the figure:

[0031] Upper plane mounting area 02; lower plane mounting area 03; plate connecting member 004; frame connecting member 005; reciprocating translation transmission assembly 340; cable winding device 400; cable winding device seat plate 430; track sliding balance assembly 431; reciprocating guide groove 432; sliding guide member 433; motor synchronous moving assembly 510; take-up motor 520; moving connecting member 530; take-up transmission mechanism 540; continuous take-up assembly 541 0; wire take-up assembly mounting frame 5411; movable shaft 5412; first synchronous wheel 5413; second synchronous wheel 5414; first synchronous belt 5415; back support seat 5416; intermittent wire take-up assembly 5420; single-stage flywheel 5421; cam 5422; reciprocating chain belt 5423; waist-shaped hole 5424; switching assembly 5430; limited lifting rod 5431; slider seat 5432; switching slider 5433; switching knob 54 34; synchronous belt tensioning mechanism 5400; first tensioning wheel 5401; transfer arm 5402; lifting and tensioning part 5403; wire taking-up actuator 5440; third synchronous wheel 5441; transfer shaft 5442; fourth synchronous wheel 5443; second synchronous belt 5444; tensioning wheel 5445; extension mounting plate 5446; synchronous transmission kit 5447; automatic disconnection mechanism 550; movable through hole 551; elastic shaft seat 552; complex Positioning assembly 553; reset waist hole 554; reset push block 555; guide movable shaft 556; reset rotation switch 557; fixed installation block 558; tension spring 559; main body bracket 100; flat plate 610; conduction wheel kit 700; universal joint 701; conduction wheel 702; wire diameter matching piece 703; locking rotation switch 704; wire groove 705; air blowing assembly 800; drying box 801; strong fan 802. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0033] Example 1

[0034] like Figure 1-Figure 9As shown, an automatic protection mechanism for a cable winch, the device can be installed in a winch on the market after size adaptation. After installation, the winch adds a function of removing water attached to the outer surface of the cable, and adds two take-up modes, namely a continuous take-up mode and an intermittent take-up mode. The two take-up modes mainly cooperate to remove water attached to the outer surface of the cable. The continuous take-up mode is used when there is not much water attached to the outer surface of the cable, and the intermittent take-up mode is used when there is more water attached to the outer surface of the cable. The protection function of disconnecting the cable after encountering an obstacle in the mechanical structure is added, including a main support 100 connected to the winch, a motor synchronous moving component 510 arranged on the upper part of the main support 100 and a take-up motor 520 arranged on the motor synchronous moving component 510, a reciprocating translation transmission component 340 arranged at the lower part of the main support 100 for controlling the lateral reciprocating movement of the take-up motor 520, a take-up transmission mechanism 540 connected to the output shaft of the take-up motor 520, and an automatic disconnection mechanism 550 triggered by the increase of traction resistance reaching a limit value during the take-up process.

[0035] A cable winding device 400 is provided below the take-up transmission mechanism 540. An air blowing assembly 800 for removing water attached to the outer surface of the cable is provided in front of the cable winding device 400. The air blowing assembly 800 is composed of a drying box 801 and a plurality of powerful fans 802 installed on the upper part of the drying box 801.

[0036] The cable winder 400 also includes a cable winder seat plate 430 connected to the winch; the cable winder seat plate 430 is in the shape of a plate as a whole, and has an obtuse folded edge, which forms two relatively upper and lower plane installation areas after the folded edge, and a group of track sliding balance components 431 are provided in the upper plane installation area 02, and a long strip reciprocating guide groove 432 is provided in the lower plane installation area 03, and the cross section of the edge of the reciprocating guide groove 432 is an arc, and a sliding guide member 433 matching the arc and capable of sliding tightly is provided in the arc edge; when the cable flows in the perforation, the cylinder can have a certain swing amplitude under the support of the flexible support member to reduce the vibration caused by the flow of the cable;

[0037] The sliding guide 433 is fixedly connected to the slider of the track sliding balance assembly 431 by setting a plate connecting member 004. The center of the sliding guide 433 is a cylinder, and a through hole is provided in the center of the cylinder for the cable to pass through. The edges at both ends of the hole have arc chamfers, and a plurality of flexible support members are provided on the circumference of the cylinder.

[0038] The top of the drying box 801 is provided with a long strip opening for the plate connecting member 004 to move, and the bottom of the drying box 801 is provided with a plurality of drainage holes.

[0039] The automatic protection mechanism also includes a movable connecting member 530 whose one end is fixedly connected to the slider in the motor synchronous moving assembly 510 and the other end is fixedly connected to the screw nut in the reciprocating translation transmission assembly 340; the movable connecting member 530 passes through the flat connecting plate 610, and a long strip opening is set at the corresponding position of the flat connecting plate 610 for the movable connecting member 530 to move.

[0040] The wire-receiving transmission mechanism 540 includes a continuous wire-receiving assembly 5410 and an intermittent wire-receiving assembly 5420 and a switching assembly 5430 for switching between the two, and also includes a wire-receiving execution assembly 5440;

[0041] The continuous wire take-up assembly 5410 includes a substantially H-shaped wire take-up assembly mounting frame 5411 fixedly connected to the slider in the track sliding balance assembly 431, a movable shaft 5412 installed in the wire take-up assembly mounting frame 5411, a first synchronous wheel 5413 installed in the movable shaft 5412, a second synchronous wheel 5414 fixedly connected to the output shaft of the wire take-up motor 520, and a first synchronous belt 5415 connecting the first synchronous wheel 5413 and the second synchronous wheel 5414 by belt transmission; the second synchronous wheel 5414 is driven to rotate by starting the wire take-up motor 520, and the first synchronous belt 5415 drives the first synchronous wheel 5413 to rotate, and the first synchronous wheel 5413 drives the movable shaft 5412 to rotate, thereby realizing continuous transmission; the lower part of the screw nut is fixedly connected to the wire take-up assembly mounting frame 5411 by setting a frame connecting piece 005;

[0042] The intermittent wire-taking assembly 5420 includes a single-stage flywheel 5421 installed in a movable shaft 5412, a cam 5422 fixedly connected to the output shaft of the wire-taking motor 520, and a reciprocating chain belt 5423 that connects the single-stage flywheel 5421 and the cam 5422 in a one-way chain transmission; the single-stage flywheel 5421 is set to rotate clockwise to be effective and rotate counterclockwise to be idle; the reciprocating chain belt 5423 is in the shape of a long strip as a whole, with a single-sided slat at one end and a rectangular cross-section with three sides at the other end. A chain belt matching the tooth shape of the single-stage flywheel 5421 is fixedly arranged in the frame body, and the frame body is The side of the slat is provided with a long waist-shaped hole 5424, and the waist-shaped hole 5424 is used to set a limit so that after the cam 5422 rotates, the hinge point between the reciprocating chain belt 5423 and the cam 5422 changes cyclically with the rotation position of the cam 5422, that is, under the limit of the waist-shaped hole 5424, the reciprocating chain belt 5423 pushes and pulls forward and backward while rotating slightly, thereby realizing intermittent transmission of the single-stage flywheel 5421, that is, when the reciprocating chain belt 5423 pushes forward, the single-stage flywheel 5421 rotates idly, and when the reciprocating chain belt 5423 pulls backward, the movable shaft 5412 is driven to rotate effectively;

[0043] like Figure 6~Figure 8As shown, the switching assembly 5430 includes a limit lifting rod 5431 with one end slidably connected to the waist-shaped hole 5424, a slider seat 5432 set in the wire-receiving assembly mounting frame 5411, a switching slider 5433 installed in the slider seat 5432, and a switching knob 5434 set above the slider seat 5432 and threadedly connected to the two; the threaded end of the switching knob 5434 is connected to the switching slider 5433, and the other end of the limit lifting rod 5431 is connected to the switching slider 5433 Connection, rotating the switching knob 5434 can make the switching slider 5433 slide up and down along the slider seat 5432, the limit lifting rod 5431 moves synchronously, and then the limit lifting rod 5431 drives the reciprocating chain 5423 to move up and down, thereby realizing the engagement or separation between the reciprocating chain 5423 and the single-stage flywheel 5421; the limit lifting rod 5431 is provided with spacers on the inner and outer sides of the waist-shaped hole 5424 to make the reciprocating chain 5423 relatively stable during pushing and pulling.

[0044] The switching assembly 5430 also includes a synchronous belt tensioning mechanism 5400 disposed in the take-up assembly mounting frame 5411, and the synchronous belt tensioning mechanism 5400 includes a first tensioning wheel 5401 pressed against the first synchronous belt 5415, a transfer arm 5402 with one end rotatably connected to the first tensioning wheel 5401 and the other end provided with a roller, and a lifting and tightening portion 5403 with a certain clearance fit with the roller of the transfer arm 5402; the middle part of the transfer arm 5402 is hinged to the take-up assembly mounting frame 5411, and is close to the first tensioning wheel 5401 at the hinge point. An elastic member 5404 is provided on one side of the belt 401, which is pressed against the transfer arm 5402. The elastic member 5404 makes the first tensioning wheel 5401 always press against the first synchronous belt 5415, and makes the roller of the transfer arm 5402 contact the upper part of the lifting elastic part 5403, leaving a gap at the lower part. The gap provides an elastic space for the first tensioning wheel 5401, so that the tension degree can also change when the force on the belt changes. Here, the first synchronous belt 5415 is in a relaxed state when the first tensioning wheel 5401 is not sufficiently pressed.

[0045] Switching assembly 5430 in use:

[0046] The overall function of the switching assembly 5430 is to switch between the continuous transmission of the continuous take-up assembly 5410 and the intermittent transmission of the intermittent take-up assembly 5420. Specifically, the switching knob 5434 is turned clockwise, the switching slider 5433 moves upward, the lifting and tightening part 5403 contacts the roller of the transfer arm 5402, and as the switching slider 5433 continues to move upward, the roller moves to the inside of the lifting and tightening part 5403. At the same time, the first tensioning wheel 5401 on the transfer arm 5402 begins to compress the first synchronous belt 5415 until the first synchronous belt 5415 is compressed, that is, the first synchronous wheel 5413 and The second synchronous wheel 5414 forms an effective transmission. During the upward movement of the switching slider 5433, the reciprocating chain belt 5423 is driven by the limited lifting rod 5431 to continuously lift upward, and when the first tensioning wheel 5401 is fully tightened, the reciprocating chain belt 5423 and the single-stage flywheel 5421 are also completely separated. At this time, it is a continuous transmission mode. Conversely, rotating the switching knob 5434 in the opposite direction can realize the engagement of the reciprocating chain belt 5423 and the single-stage flywheel 5421 and switch back to the intermittent transmission mode. The corresponding first synchronous belt 5415 returns to a loose state, and the first synchronous wheel 5413 and the second synchronous wheel 5414 return to an invalid state.

[0047] The side of the wire take-up assembly mounting frame 5411 facing the frame connecting piece 005 is provided with a back support seat 5416, and the movable shaft 5412 is arranged in front of the back support seat 5416;

[0048] The automatic disconnection mechanism 550 includes a movable through hole 551 arranged in the two side walls of the take-up assembly mounting frame 5411, and an elastic shaft seat 552 hinged in the back support seat 5416; the movable through hole 551 is used to install the movable shaft 5412, and the movable through hole 551 is generally in the shape of an inclined heart, and the angle of inclination is a transition downward extension. Its purpose is to guide the movable shaft 5412 to move downward under the action of tension, and the hinge point position of the elastic shaft seat 552 must be higher than the axis of the movable shaft 5412, that is, under normal conditions, the elastic shaft seat 552 presses the movable shaft 5412 from top to bottom with an inclination on the upper part of the inclined heart shape of the movable through hole 551, and further the elastic shaft seat 552 is arranged Between the first synchronous wheel 5413 and the single-stage flywheel 5421, the imbalance generated by the two when overcoming the elastic shaft seat 552 is relatively small; in this embodiment, since the thrust of the elastic shaft seat 552 on the movable shaft 5412 and the pulling force of the first synchronous belt 5415 and the reciprocating chain belt 5423 are not in a straight line, when the pulling force is greater than the supporting force, the movable shaft 5412 will fall with an inclination when the interaction, and the card point at the connection between the upper and lower parts of the movable through hole 551 is designed to be relatively small, one end of the movable shaft 5412 will be driven by the pulling force to fall into the lower part of the movable through hole 551 first, and the other end will also fall into the lower part of the movable through hole 551 due to the small pulling force of the card point.

[0049] The automatic disconnection mechanism 550 also includes a reset assembly 553 in front of the movable shaft 5412; the reset assembly 553 includes a reset waist hole 554 arranged on a side wall of the take-up assembly mounting frame 5411 and located obliquely below the movable through hole 551, a reset push block 555 abutting against the inner side wall of the take-up assembly mounting frame 5411, a guide movable shaft 556 with one end passing through the reset push block 555 and partially exposed and the other end movably installed in the reset waist hole 554 and partially exposed, a reset rotary switch 557 installed in front of the take-up assembly mounting frame 5411, a fixed mounting block 558 for installing the reset rotary switch 557, two tension springs 559 arranged at both ends of the guide movable shaft 556, and a guide plate 555a arranged at the lower part of the reset push block 555 and fixed on the inner side wall of the take-up assembly mounting frame 5411;

[0050] The front of the reset push block 555 has an inclined surface, and two rollers are provided at the bottom. The two rollers are installed on the upper surface of the guide plate 555a. One end of the two tension springs 559 is respectively connected to the two ends of the guide movable shaft 556, and the other end of the two tension springs 559 is connected to the two ends of the fixed mounting block 558; the reset rotary switch 557 and the reset push block 555 are hinged; the reset waist hole 554 and the guide plate 555a are horizontally arranged at one end close to the reset rotary switch 557, and the other end is inclined at the same angle upward. The purpose of this arrangement is that when the automatic disconnection mechanism 550 is in the disconnected state, that is, the movable shaft 5412 falls on the lower part of the movable through hole 551, the reset rotary switch 557 is rotated to reset. Figure 8 The reset rotary switch 557 pushes the reset push block 555 to overcome the tension of the two tension springs 559 and move forward to the position where the inclined surface and the reset push block 555 meet. Figure 8 The movable shaft 5412 indicated by the middle dotted line is in conflict, and the reset push block 555 continues to rotate to push the movable shaft 5412 forward. At this time, the guide movable shaft 556 is guided by the guide plate 555a and the reset waist hole 554, and the reset push block 555 is tilted upward as a whole, thereby moving the movable shaft 5412 upward until the movable shaft 5412 re-enters the upper part of the movable through hole 551 to complete the reset. Then reversely rotate the reset rotary switch 557 to return the reset push block 555 to the initial position. It should be pointed out that when the elastic shaft seat 552 used has a large elastic force, the reset assembly 553 needs to be further provided on the other side wall of the take-up assembly mounting frame 5411 as shown in FIG. Figure 3 As shown, when performing the reset action, both sides are operated at the same time to complete the reset more easily.

[0051] Automatic disconnect mechanism 550 in use:

[0052] When winding the cable, when the cable is restrained by foreign objects, the force of the first synchronous belt 5415 or the reciprocating chain belt 5423 will increase, thereby overcoming the pressure of the elastic shaft seat 552 and causing the movable shaft 5412 to move upward along the movable through hole 551, that is, the movable shaft 5412 breaks away from the original stable position and under the guidance of the movable through hole 551 and the self-weight of the movable shaft 5412 together with the upper mounted components, the movable shaft 5412 enters the lower position of the movable through hole 551. In this process, the elastically pressed cooperation relationship between the tensioning wheel 5445 and the second synchronous belt 5444 provides a movable space for this action. After the movable shaft 5412 enters the lower position of the movable through hole 551, the position of the third synchronous wheel 5441 moves downward, and the second synchronous belt 5444 is in an invalid state. At this time, the wire winding stops to protect the cable.

[0053] The wire-receiving actuator assembly 5440 includes a third synchronous wheel 5441 installed in the movable shaft 5412, a transfer shaft 5442 arranged at the bottom of the wire-receiving assembly mounting frame 5411, a fourth synchronous wheel 5443 installed in the transfer shaft 5442, a second synchronous belt 5444 connecting the third synchronous wheel 5441 and the fourth synchronous wheel 5443 by belt transmission, a tensioning wheel 5445 arranged for the second synchronous belt 5444, an extended mounting plate 5446 arranged at the bottom of the wire-receiving assembly mounting frame 5411, a synchronous transmission kit 5447 arranged between the end of the extended mounting plate 5446 and the transfer shaft 5442, and two sets of transmission wheel kits 700 arranged at both sides of the end of the extended mounting plate 5446;

[0054] The transmission wheel set 700 includes a universal joint 701 with one end coaxially connected to the synchronous wheel of the synchronous transmission set 5447, a transmission wheel 702 rotatably mounted on the extended mounting plate 5446, the other end of the universal joint 701 connected to the transmission wheel 702, a wire diameter matching piece 703 arranged on the side of the transmission wheel 702 facing the frame connecting piece 005, a locking rotary switch 704 for locking the wire diameter matching piece 703, and an arc-shaped wire groove 705 arranged below the corresponding wire diameter matching piece 703 on the extended mounting plate 5446; the front part of the wire diameter matching piece 703 has a rotatable pressure shaft, and the center has a longitudinal waist hole, the waist hole is used to adjust the distance between the pressure shaft and the transmission wheel 702 to control the tightness of the cable, and then locked by the locking rotary switch 704. The setting of the universal joint 701 allows the transmission wheel 702 to have a certain range of rotation when the cable winding device 400 moves, so as to transmit the cable more smoothly.

[0055] The overall installation process steps of the winch are as follows: Fig. 9 As shown in:

[0056] 1. The upper part of the screw nut in the reciprocating translation transmission assembly 340 is fixedly connected to the movable connecting piece 530, and the lower part of the screw nut is fixedly connected to the take-up assembly mounting frame 5411 by setting the frame connecting piece 005. After the driving motor in the reciprocating translation transmission assembly 340 drives the screw to rotate, the screw nut drives the movable connecting piece 530 and the take-up assembly mounting frame 5411 to move horizontally accordingly, that is, the cable winding device 400 is synchronously controlled to move by the take-up motor 520, the take-up transmission mechanism 540, and the automatic disconnection mechanism 550, that is, when it is used for releasing the wire, the wire diameter matching piece 703 is loosened so that the conductive wheel 702 only plays a transition transmission role, and the cable winding device 400 moves horizontally back and forth in sequence according to the corresponding release speed;

[0057] 2. When winding the cable, tighten the two wire diameter matching parts 703, and then select the intermittent winding mode or the continuous winding mode according to the water attached to the cable surface. The collected cable is air-dried by the air blowing assembly 800, and then the cable winding device 400 moves back and forth in sequence at the corresponding pay-off speed to cooperate with the winch to complete the winding;

[0058] 3. When the cable is restrained during reeling, the automatic disconnection mechanism 550 disconnects the reel according to the aforementioned operating principle, and after processing, it is reset through the aforementioned operating steps of the reset component 553.

[0059] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic protection mechanism for a cable winch, It is characterized in that The invention comprises a main frame (100) connected to a winch, a motor synchronous movement assembly (510) arranged on the upper part of the main frame (100) and a wire-receiving motor (520) arranged on the motor synchronous movement assembly (510), a reciprocating translation transmission assembly (340) arranged on the lower part of the main frame (100) for controlling the lateral reciprocating movement of the wire-receiving motor (520), a wire-receiving transmission mechanism (540) connected to the output shaft of the wire-receiving motor (520), and an automatic disconnection mechanism (550) triggered when the traction resistance increases to a limit value during the wire-receiving process; The wire-receiving transmission mechanism (540) comprises a continuous wire-receiving component (5410) and an intermittent wire-receiving component (5420), and a switching component (5430) for switching between the two, and also comprises a wire-receiving execution component (5440); The continuous wire take-up assembly (5410) comprises a generally H-shaped wire take-up assembly mounting frame (5411) fixedly connected to a slider in a track sliding balance assembly (431), a movable shaft (5412) mounted in the wire take-up assembly mounting frame (5411), a first synchronous wheel (5413) mounted in the movable shaft (5412), a second synchronous wheel (5414) fixedly connected to an output shaft of a wire take-up motor (520), and a first synchronous belt (5415) connecting the first synchronous wheel (5413) and the second synchronous wheel (5414) by belt transmission; the lower part of the lead screw nut in the reciprocating translation transmission assembly (340) is fixedly connected to the wire take-up assembly mounting frame (5411) by providing a frame connecting piece (005); The intermittent wire-retrieving assembly (5420) comprises a single-stage flywheel (5421) installed in a movable shaft (5412), a cam (5422) fixedly connected to the output shaft of the wire-retrieving motor (520), and a reciprocating chain belt (5423) that connects the single-stage flywheel (5421) and the cam (5422) in a one-way chain transmission; the single-stage flywheel (5421) is set to rotate clockwise to be effective, and rotate counterclockwise to be idle; the reciprocating chain belt (5423) is in the shape of a long strip as a whole, with a single-sided slat at one end and a frame body with a rectangular cross-section and three sides at the other end, a chain belt matching the tooth shape of the single-stage flywheel (5421) is fixedly arranged in the frame body, and the frame body has a long waist-shaped hole (5424) on the side opposite to the slat; The wire take-up assembly mounting frame (5411) is provided with a back support seat (5416) on one side facing the frame connecting piece (005), and the movable shaft (5412) is arranged in front of the back support seat (5416); The automatic disconnection mechanism (550) comprises movable through holes (551) arranged in the two side walls of the wire take-up assembly mounting frame (5411), and an elastic shaft seat (552) hinged in the back support seat (5416); the movable through hole (551) is used to install the movable shaft (5412), and the hinge point of the elastic shaft seat (552) is higher than the axis of the movable shaft (5412); The automatic disconnection mechanism (550) further comprises a reset assembly (553) in front of the movable shaft (5412); the reset assembly (553) comprises a reset waist hole (554) arranged on a side wall of the take-up assembly mounting frame (5411) and located obliquely below the movable through hole (551), a reset push block (555) abutting against the inner side wall of the take-up assembly mounting frame (5411), a guide movable shaft (556) having one end passing through the reset push block (555) and partially exposed and the other end movably mounted in the reset waist hole (554) and partially exposed, a reset rotary switch (557) mounted in front of the take-up assembly mounting frame (5411), a fixed mounting block (558) for mounting the reset rotary switch (557), two tension springs (559) arranged at both ends of the guide movable shaft (556), and a guide plate (555a) arranged at the lower part of the reset push block (555) and fixed on the inner side wall of the take-up assembly mounting frame (5411).

2. The automatic protection mechanism for a cable winch according to claim 1, It is characterized in that A cable winding device (400) is provided below the wire-reeling transmission mechanism (540), and the cable winding device (400) further comprises a cable winding device seat plate (430) connected to the winch; the cable winding device seat plate (430) is in the shape of a plate as a whole, and has an obtuse folded edge, which forms two relatively upper and lower areas after the folding, and the upper plane installation area (02) is provided with a group of track sliding balance components (431), and the lower plane installation area (03) is provided with a long strip reciprocating guide groove (432), the cross section of the edge of the reciprocating guide groove (432) is arc-shaped, and a sliding guide member (433) matching the arc and capable of sliding tightly is provided in the arc-shaped edge; The sliding guide member (433) is fixedly connected to the slider of the track sliding balance assembly (431) by arranging a plate body connecting member (004). The center of the sliding guide member (433) is a cylinder. A through hole is arranged at the center of the cylinder for the cable to pass through. The edges at both ends of the hole have arc chamfers. A plurality of flexible support members are arranged on the circumference of the cylinder.

3. The automatic protection mechanism for a cable winch according to claim 1, It is characterized in that The switching assembly (5430) comprises a limit lifting rod (5431) with one end slidably connected to the waist-shaped hole (5424), a slider seat (5432) arranged in the wire take-up assembly mounting frame (5411), a switching slider (5433) installed in the slider seat (5432), and a switching knob (5434) arranged above the slider seat (5432) and the two are threadedly connected; the threaded end of the switching knob (5434) is connected to the switching slider (5433), and the other end of the limit lifting rod (5431) is connected to the switching slider (5433); The switching assembly (5430) further comprises a synchronous belt tensioning mechanism (5400) arranged in the take-up assembly mounting frame (5411), the synchronous belt tensioning mechanism (5400) comprising a first tensioning wheel (5401) pressed against the first synchronous belt (5415), a transfer arm (5402) having one end rotatably connected to the first tensioning wheel (5401) and the other end of which is provided with a roller, and a lifting and tightening portion (5401) having a certain clearance fit with the roller of the transfer arm (5402). 03); the middle part of the transfer arm (5402) is hinged on the wire take-up assembly mounting frame (5411), and an elastic member (5404) is provided on the side of the hinge point close to the first tensioning wheel (5401) to press against the transfer arm (5402); the elastic member (5404) makes the first tensioning wheel (5401) always press against the first synchronous belt (5415) and makes the roller of the transfer arm (5402) contact the upper part of the lifting elastic part (5403) to leave a gap at the lower part.

4. The automatic protection mechanism for a cable winch according to claim 1, It is characterized in that The reset push block (555) has an inclined surface in front and two rollers at the bottom. The two rollers are mounted on the upper surface of the guide plate (555a). One end of two tension springs (559) are respectively connected to the two ends of the guide movable shaft (556), and the other ends of the two tension springs (559) are connected to the two ends of the fixed mounting block (558). The reset rotary switch (557) and the reset push block (555) are hinged. The reset waist hole (554) and the guide plate (555a) are horizontally arranged at one end close to the reset rotary switch (557) and the other end are inclined upward at the same angle.

5. The automatic protection mechanism for a cable winch according to claim 1, It is characterized in that The main frame (100) comprises handles on two sides and a flat connecting plate (610) in the middle.

6. The automatic protection mechanism for a cable winch according to claim 5, It is characterized in that It also includes a movable connecting member (530) having one end fixedly connected to a slider in the motor synchronous moving assembly (510) and the other end fixedly connected to a lead screw nut in the reciprocating translation transmission assembly (340); the movable connecting member (530) passes through the flat connecting plate (610), and a long strip opening for the movable connecting member (530) to move is provided at a corresponding position of the flat connecting plate (610).

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