Closed-loop feedback tension control mechanism and hoisting device

Abstract

The present invention relates to the technical field of agriculture and animal husbandry, and provides a closed-loop feedback tension control mechanism and a hoisting device. The closed-loop feedback tension control mechanism includes a tension adjustment component, which is used to connect with the mechanism to be monitored; a tension detection component, which is connected with the tension adjustment component, and is used to monitor the tension value of the tension adjustment component in real time; the input end of the tension feedback component is connected with the tension detection component, and is used to receive the tension value monitored by the tension detection component in real time; the output end of the tension feedback component is connected with the tension adjustment component, and is used to send an adjustment instruction to the tension adjustment component. The present invention monitors the tension value of the tension adjustment component during the operation of the mechanism to be monitored in real time through the tension detection component, and transmits it to the tension feedback component. The tension feedback component sends a corresponding adjustment instruction based on the judgment result, thereby realizing the force adjustment of the mechanism to be monitored, preventing the mechanism to be monitored from being damaged due to uneven force, and improving the service life.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture and animal husbandry, and in particular to a closed-loop feedback tension control mechanism and a winding device. Background Art

[0002] At present, the lifting and lowering of covering materials used in agriculture and animal husbandry, such as rolled film, rolled blanket, rolled curtain and window opening, are mostly driven by the rolled film, thermal blanket or curtain. During the lifting and lowering process, since the driving device works at one end, the film, thermal blanket or curtain near the driving device side is dragged and deformed, which seriously affects the service life of the film, thermal blanket or curtain and the driving device.

[0003] For example, in the greenhouse blanket rolling mechanism, the blanket rolling machine weighs 100 kg. In order to prevent the quilt from being pulled and deformed, a large lever is usually used to connect the blanket rolling machine, which provides both the torque required by the blanket rolling machine and the lifting force of the blanket rolling machine. However, there is a deviation between the force provided by the lever and the actual required force, which makes the blanket rolling machine and the lifting shaft move out of sync, resulting in damage to the covering. Summary of the invention

[0004] The present invention provides a closed-loop feedback tension control mechanism and a winding device, which are used to solve the defects in the prior art that the movement of the blanket rolling machine and the winding shaft is not synchronous and the covering is easily damaged, and realizes the tension adjustment of the monitoring mechanism, ensures that the covering and the winding shaft move synchronously, and effectively protects the covering.

[0005] The present invention provides a closed-loop feedback tension control mechanism, comprising:

[0006] A tension adjustment component, the tension adjustment component comprises a winding motor, a tension wheel and a tension winding belt, the output end of the winding motor is connected to the first end of the tension winding belt, the tension winding belt is wound and connected to the tension wheel, and the second end of the tension winding belt is fixedly arranged;

[0007] A tension detection assembly, the tension detection assembly comprising a spring and a trigger member, the first end of the spring is fixedly arranged, the second end of the spring is connected to the tensioning wheel, and the first end of the trigger member is connected to the tensioning wheel;

[0008] A tension feedback component includes a controller and a travel switch group, the second end of the trigger member is triggered and adapted to the travel switch group, the travel switch group is connected to the input end of the controller, and the output end of the controller is electrically connected to the belt winding motor.

[0009] According to a closed-loop feedback tension control mechanism provided by the present invention, the tension adjustment assembly further includes a housing, a fixing column is disposed in the housing, and the first end of the spring is connected to the fixing column.

[0010] According to a closed-loop feedback tension control mechanism provided by the present invention, a tension plate is also provided in the shell, the tension plate is provided with a pin shaft and a connecting column, the tensioning wheel is rotatably provided on the pin shaft, the second end of the spring is connected to the connecting column, and the tension plate moves synchronously with the tensioning wheel.

[0011] According to a closed-loop feedback tension control mechanism provided by the present invention, a protective plate is provided at one end of the tension plate close to the spring, and the protective plates are provided on both sides of the spring.

[0012] According to a closed-loop feedback tension control mechanism provided by the present invention, the first end of the trigger member is connected to the tension plate and moves synchronously with the tension plate.

[0013] According to a closed-loop feedback tension control mechanism provided by the present invention, a plurality of rotating shafts and a plurality of guide wheels are further provided in the shell, the guide wheels correspond to the rotating shafts one by one, the guide wheels are rotatably provided on the rotating shafts, and guide the winding of the tension tape.

[0014] According to a closed-loop feedback tension control mechanism provided by the present invention, the travel switch group includes a forward travel switch and a reverse travel switch, the second end of the trigger member is respectively triggered and adapted to the forward travel switch and the reverse travel switch, and the forward travel switch and the reverse travel switch are respectively connected to the input end of the controller.

[0015] The present invention further provides a hoisting device, comprising a climbing tube, a mechanism to be monitored and a closed-loop feedback tension control mechanism as described in any one of the above items, wherein the mechanism to be monitored comprises a climber and a hoist, the climber is slidably mounted on the climbing tube, the hoist is connected to the climber, and the output end of the hoist is connected to a covering;

[0016] The tension adjustment assembly is connected to the reel.

[0017] According to a hoisting device provided by the present invention, the climbing tube is provided with a connecting piece, and the connecting piece is connected to the second end of the tension belt through an elastic piece.

[0018] According to a hoisting device provided by the present invention, the hoist is electrically connected to the controller.

[0019] The closed-loop feedback tension control mechanism and the hoisting device provided by the present invention include a tension adjustment component, which is used to be connected to the mechanism to be monitored; a tension detection component, which is connected to the tension adjustment component and is used to monitor the tension value of the tension adjustment component in real time; a tension feedback component, the input end of the tension feedback component is connected to the tension detection component and is used to receive the tension value monitored by the tension detection component in real time, and the output end of the tension feedback component is connected to the tension adjustment component and is used to send an adjustment instruction to the tension adjustment component. The tension detection component monitors the tension value of the tension adjustment component during the operation of the mechanism to be monitored in real time and transmits it to the tension feedback component. The tension feedback component sends a corresponding adjustment instruction based on the judgment result, thereby realizing the force adjustment of the mechanism to be monitored, preventing the mechanism to be monitored from being damaged due to uneven force, and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a closed-loop feedback tension control mechanism provided by the present invention;

[0022] Figure 2 is a side view of the closed-loop feedback tension control mechanism provided by the present invention;

[0023] Figure 3 It is a structural schematic diagram of the hoisting device provided by the present invention;

[0024] Figure 4 is a side view of the hoisting device provided by the present invention;

[0025] Reference numerals:

[0026] 100, climbing tube; 110, connecting piece; 210, climber; 220, hoist; 230, hoisting shaft; 310, tension tape; 320, tape motor; 321, tape pulley; 330, tension plate; 340, tensioning pulley; 350, spring; 360, trigger member; 361, elastic member; 370, travel switch group; 371, forward travel switch; 372, reverse travel switch; 380, fixing column; 390, housing; 391, rotating shaft; 392, guide wheel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Combine the following Figures 1 to 4 The invention describes a closed-loop feedback tension control mechanism and a hoisting device. The closed-loop feedback tension control mechanism and the hoisting device include:

[0029] A tension adjustment component, the tension adjustment component is used to connect with the mechanism to be monitored;

[0030] A tension detection component, which is connected to the tension adjustment component and is used to monitor the tension value of the tension adjustment component in real time;

[0031] The tension feedback component has an input end connected to the tension detection component to receive the tension value monitored by the tension detection component in real time, and an output end of the tension feedback component is connected to the tension adjustment component to send an adjustment instruction to the tension adjustment component.

[0032] The present invention also provides a winding device, including a climbing pipe 100, a mechanism to be monitored and the closed-loop feedback tension control mechanism as described above, the mechanism to be monitored includes a climber 210 and a reel 220, the climber 210 is slidably mounted on the climbing pipe 100, the reel 220 is connected to the climber 210, and the output end of the reel 220 is connected to the covering; the tension adjustment assembly is connected to the climbing pipe 100.

[0033] Specifically, the mechanism to be monitored can be slidably mounted on the climbing tube 100, and the output end of the mechanism to be monitored is connected to the covering;

[0034] The tension adjustment component is connected to the climbing tube 100. The output end of the tension adjustment component is provided with a tension belt 310. The tension belt 310 is connected to the mechanism to be monitored and is used to lift or lower the mechanism to be monitored. It can be understood that the climbing tube 100 is arranged in the vertical direction, the mechanism to be monitored is used to roll up or roll down the covering, and is slidably mounted on the climbing tube 100 along the length direction of the climbing tube 100, that is, the vertical direction.

[0035] Furthermore, the tension adjustment component is connected to the climbing tube 100, and a tension belt 310 is provided at the output end of the tension adjustment component. The tension belt 310 is connected to the mechanism to be monitored, and the tensioning force of the tension belt 310 is sensed to determine whether to retract or lower the tension belt 310, thereby lifting or lowering the mechanism to be monitored, so that the mechanism to be monitored moves synchronously with the covering, preventing the covering from being damaged by being pulled, thereby increasing the service life of the covering.

[0036] The mechanism to be monitored includes a climber 210 and a reel 220. The climber 210 can be slidably mounted on the climbing tube 100. The reel 220 is connected to the climber 210. The output end of the reel 220 is connected to the covering. It can be understood that the climber 210 is fixedly connected to the reel 220. The climber 210 can be slidably mounted on the climbing tube 100, thereby realizing the up and down movement of the reel 220 relative to the climbing tube 100. The output end of the reel 220 is provided with a reel shaft 230. The reel tube is detachably mounted on the reel shaft 230. One end of the covering is fixedly connected to the reel tube, so that the reel 220 drives the reel shaft 230 to drive the reel tube to rotate, thereby realizing the reeling or unreeling of the covering. By replacing the reel tube, the installation of different coverings can be realized, thereby improving the applicability of the reel 220.

[0037] See also Figure 1 and Figure 3 The tension adjustment component includes a winding motor 320, a tensioning wheel 340, a tension detection component and a tension feedback component. The output end of the winding motor 320 is provided with a winding wheel 321, the first end of the tension winding tape 310 is connected to the winding wheel 321, the tension winding tape 310 is wound on the tensioning wheel 340, and the second end of the tension winding tape 310 is connected to the monitored mechanism.

[0038] The detection end of the tension detection component is connected to the tension tape 310 to detect the tension of the tension tape 310, the tension detection component is connected to the input end of the tension feedback component, and the output end of the tension feedback component is connected to the tape motor 320. It can be understood that the tension adjustment component specifically includes a housing 390, a tape motor 320, a tape wheel 321, a tension wheel 340, a tension detection component and a tension feedback component. The tape motor 320 is used to provide output power for winding or unwinding the tension tape 310. The tape motor 320 is installed on the housing 390, the housing 390 is connected to the climbing tube 100, the output end of the tape motor 320 is inserted into the housing 390, and the tape wheel 321 is installed at the output end of the tape motor 320, and the tape motor 320 drives the tape wheel 321 to rotate.

[0039] Furthermore, one end of the tension tape 310 is connected to the winding wheel 321, so that when the winding wheel 321 rotates forward, the tension tape 310 is wound, and when the winding wheel rotates reversely, the tension tape 310 is unwound. The tension tape 310 is wound around the tension wheel 340 and the guide wheel 392, and then extends out of the shell 390. The second end of the tension tape 310 is connected to the mechanism to be monitored. At this point, the winding wheel 321 is driven forward by the winding motor 320 to wind up the tension tape 310, and then the mechanism to be monitored is driven upward by the tension tape 310; the winding wheel 321 is driven reversely by the winding motor 320 to wind up the tension tape 310, and then the mechanism to be monitored is moved downward by the tension tape 310.

[0040] Among them, the detection end of the tension detection component is connected to the tension tape 310 to detect the tension of the tension tape 310, the tension detection component is connected to the input end of the tension feedback component, and the output end of the tension feedback component is connected to the tape motor 320. Specifically, the tension detection component is used to monitor the tension value of the tension tape 310 wound around the tensioning wheel in real time, and transmit the monitored tension value to the tension feedback component, and the tension feedback component compares the tension value with the set value for judgment. According to the judgment result, the tension feedback component sends a forward speed, reverse speed or stop adjustment instruction to the tape motor 320, so as to achieve a balance between the traction force output by the tension tape 310 and the total force generated when the monitored mechanism reels in or unwinds the covering, so as to achieve synchronous movement of the winding shaft 230 of the monitored mechanism and the covering.

[0041] To further explain, during the winding process of the monitored mechanism, when the tension detection component measures a real-time tension value lower than the set value, the tension feedback component controls the winding motor 320 to accelerate the winding of the tension tape 310 to increase the tension; when the tension detection component measures a real-time tension value higher than the set value, the tension feedback component controls the winding motor 320 to decelerate or stop or reversely unwind the tension tape 310 to reduce the tension.

[0042] During the unwinding process, when the real-time tension value measured by the tension detection component is lower than the set value, the tension feedback component controls the winding motor 320 to slow down or stop or reversely rewind the tension winding tape 310 to increase the tension; when the real-time tension value measured by the tension detection component is higher than the set value, the tension feedback component controls the winding motor 320 to accelerate the unwinding of the tension winding tape 310 to reduce the tension.

[0043] Continue to see Figures 1 to 4 The tension detection component includes a spring 350 and a trigger member 360, the first end of the spring 350 is fixed, the second end of the spring 350 is connected to the tension wheel 340, the trigger member 360 is connected to the tension wheel 340, and the second end of the trigger member 360 is connected to the input end of the tension feedback component.

[0044] Furthermore, the tension feedback component includes a controller and a travel switch group 370, wherein the travel switch group 370 includes a forward travel switch 371 and a reverse travel switch 372, the second end of the trigger member 360 is triggered and adapted to the forward travel switch 371 and the reverse travel switch 372, the forward travel switch 371 and the reverse travel switch 372 are respectively connected to the input end of the controller, and the output end of the controller is electrically connected to the winding motor 320.

[0045] Specifically, the tension detection assembly includes a spring 350 and a trigger member 360 both disposed in a housing 390, wherein the first end of the spring 350 is fixed in the housing 390, and the second end of the spring 350 is connected to the tension wheel 340. In this embodiment, the trigger member 360 is L-shaped, and the trigger member 360 is connected to the tension wheel 340, so that the trigger member 360 can move synchronously with the tension wheel 340, thereby achieving compression or extension of the spring 350. The second end of the trigger member 360 is located on the triggering pressing plate of the forward travel switch 371 and the reverse travel switch 372 of the tension feedback assembly. In this embodiment, when the trigger member 360 moves upward as a whole, the forward travel switch 371 and the reverse travel switch 372 are triggered, and then the forward travel switch 371 or the reverse travel switch 372 sends a corresponding signal to the input end of the controller, and the controller sends an adjustment instruction to the winding motor 320 accordingly.

[0046] In some embodiments, the trigger member 360 can be an L-shaped pressure rod, an L-shaped pressure plate, or an L-shaped paddle.

[0047] The tension adjustment assembly includes a housing 390, a pin is provided in the housing 390, the tension wheel 340 is rotatably provided on the pin, the housing 390 is provided with a slide groove provided along the length direction of the climbing tube 100, and the pin is movably provided in the slide groove. It can be understood that the housing 390 is provided with a pin, so that the tension wheel 340 can be rotatably installed on the pin, ensuring that the tension belt 310 is wound around the tension wheel 340, and at the same time realizing the winding or unwinding of the tension belt 310. The housing 390 is also provided with a slide groove, and the slide groove realizes that the pin is installed in the slide groove, and when the tension wheel 340 receives a change in tension force, the pin can move up and down in the slide groove along the length direction of the climbing tube 100, that is, in the vertical direction, thereby driving the trigger member 360 to move up and down, compressing or decompressing the spring 350.

[0048] In one embodiment, a fixing column 380 is provided on the inner wall of the housing 390 , and the first end of the spring 350 is fixedly connected to the fixing column 380 to prevent the first end of the spring 350 from falling off and ensure firmness.

[0049] In one embodiment, the shell 390 is also provided with a tension plate 330, one end of the pin shaft is fixedly set on the tension plate 330, and a gap is provided between the other end of the pin shaft and the inner wall of the shell 390, and the size of the gap is smaller than the axial thickness of the tensioning wheel 340, so that the tensioning wheel 340 can rotate between the shell 390 and the tensioning plate 330, and at the same time effectively prevent the tensioning wheel 340 from falling off the pin shaft, and it can be ensured that when the tensioning wheel 340 is subjected to tensioning force, it drives the tensioning plate 330 to make corresponding movement.

[0050] Furthermore, the tension plate 330 is also provided with a connecting column, which is arranged between the inner wall of the housing 390 and the tension plate 330, and one end of the connecting column is fixedly connected to the tension plate 330, and the other end of the connecting column is not connected to the housing 390. The second end of the spring 350 is fixedly connected to the connecting column to realize the output of elastic tension for resetting the tension plate 330 and the tension wheel 340, that is, the force output by the spring 350 is opposite to the tension force of the tension wheel 340 received by the tension belt 310.

[0051] In one embodiment, a protective plate is provided at one end of the tension plate close to the spring, the protective plate extends away from the tension plate, and protective plates are provided on both sides of the spring to achieve guiding protection when the spring is stretched or contracted.

[0052] In one embodiment, the first end of the trigger member 360 is fixedly connected to the side of the tension plate 330 close to the travel switch group 370, and realizes the synchronous movement of the trigger member 360, the tension plate 330 and the tensioning wheel 340, driving the second end of the trigger member 360 to act on the travel switch group 370.

[0053] In some embodiments, a plurality of rotating shafts 391 and a plurality of guide wheels 392 are further provided in the housing 390, and the guide wheels 392 correspond to the rotating shafts 391 one by one, and the guide wheels 392 are rotatably provided on the rotating shafts 391. It can be understood that the rotating shafts 391 and the guide wheels 392 are provided in a one-to-one correspondence in the housing 390, so as to realize the guiding, winding and arrangement of the tension belt 310 in the housing 390.

[0054] In some embodiments, the climbing tube 100 is provided with a connecting member 110, and the connecting member 110 is connected to the second end of the tension belt through the elastic member 361. It can be understood that the first end of the elastic member 361 is fixedly connected to the climbing tube 100 through the connecting member 110, and the connecting member 110 is fixed to the climbing tube 100. The second end of the elastic member 361 is connected to the second end of the tension belt 310 to provide elastic tension to the tension belt 310.

[0055] It should be noted that the elastic member 361 can be an elastic rope or a telescopic spring.

[0056] In the embodiment of the present invention, the connecting member 110 can be a clamp or a welding plate.

[0057] The working process of the hoisting device provided in this embodiment is as follows:

[0058] Initial stopping phase

[0059] The electric hoist 220, the climber 210 and the tension adjustment assembly apply a pulling force F equal to the gravity of the tension belt 310 due to their own weight. 1 , the tension belt 310 is pulled, driving the tension wheel 340 and the trigger member 360 to compress the spring 350. The pressure value of the spring 350 at this time is 2F 1 By calculating in advance and selecting the spring 350, the elastic coefficient of the spring 350 is p, and the amount of compression of the spring 350 at this time can be calculated as D 1 =2F 1 / p.

[0060] Set the trigger to move upward 360 degrees D 1 After the distance, it just presses or approaches the triggering pressing piece of the forward travel switch 371 and the reverse travel switch 372, but this process does not cause the triggering member 360 to trigger the forward travel switch 371 and the reverse travel switch 372. From the above, it can be known that in the initial stop stage, the pulling force F 1 All of the load is borne by the climbing pipe 100 through the elastic member 361 and the connecting member 110. It can be seen that the equipment side cover can be completely protected from additional vertical tension during this stage.

[0061] Winding device 220 retracting upward stage

[0062] The reel is reeled up, the diode of the forward travel switch 371 is energized, and the diode of the reverse travel switch 372 is de-energized, driving the reel 220 and the climber 210 to move upward. Due to this change, the pulling force of the tension belt 310 on the reel 220 is reduced to F 2 , tension change δF 1 =F 1 -F 2 , the pressure on spring 350 is 2F 2 , it can be calculated that the spring 350 stretch amount D 2 =2F 2 / p. Due to F 2 <F 1 , we know that D 2 <D 1 , that is, the trigger member 360 is now separated from the triggering pressing piece of the forward travel switch 371 and the reverse travel switch 372. In response to this change, the forward travel switch 371 sends a detection signal to the controller, and the controller controls the winding motor 320 to drive the winding wheel 321 to rotate and rewind the tension winding belt 310 until the tension change δF 1The covering is transferred to the tension belt 310 again, so that the tension value of the tension belt 310 on the hoist 220 is restored to F 1 According to the above analysis, at this time, the trigger member 360 moves upward and presses again on the trigger pressure plate of the forward travel switch 371 and the reverse travel switch 372. Due to this change, the controller controls the belt motor 320 to stop winding, and this cycle completes the normal operation of the winder 220 in the upward stage of winding.

[0063] As can be seen from the above, during the reeling and ascending phase of the hoist 220, the gravity of the hoist 220 and the climber 210 is entirely borne by the tension adjustment assembly, with only a small portion of the gravity (the above δF 1 ) is borne by the covering. In actual operation, the influence of this part of force on the covering can be ignored. It can be seen that in this stage, the equipment side covering can be prevented from being subjected to additional vertical pulling force throughout the process.

[0064] Winding device 220 winding down stage

[0065] The reel is rolled down, the diode of the forward travel switch 371 is de-energized, and the diode of the reverse travel switch 372 is energized, driving the reel 220 and the climber 210 downward. Due to this change, the tension of the tension belt 310 on the reel 220 increases until it reaches F 1 According to the above analysis, at this time, the trigger member 360 just presses on the trigger pressing pieces of the forward travel switch 371 and the reverse travel switch 372, and the reverse travel switch 372 sends a detection signal to the controller, which controls the belt motor 320 to start unwinding. Due to this change, the tension of the tension belt 310 on the reel 220 is reduced to F 2 According to the above analysis, the trigger member 360 is now separated from the triggering pressing piece of the forward travel switch 371 and the reverse travel switch 372, and the controller controls the belt motor 320 to stop unwinding. The reel 220 still controls the reel tube to go down, and the tension of the tension belt 310 on the reel 220 increases and returns to F. 1 , the belt motor 320 starts unwinding. This cycle completes the normal operation of the winding device 220 during the winding and descending stage. As can be seen from the above, during the winding and descending stage of the winding device 220, the gravity of the winding device 220 and the climber 210 is all borne by the tension adjustment component, and only a small part of the gravity (the above δF 1 ) is borne by the covering. In actual operation, the influence of this part of force on the covering can be ignored. It can be seen that in this stage, the equipment side covering can be prevented from being subjected to additional vertical pulling force throughout the process.

[0066] Through the above description of the operation in the three stages of stopping, ascending and descending, it can be known that the hoist 220 can prevent the equipment side cover from being subjected to additional vertical tension during the entire operation process by connecting the tension adjustment component, thereby avoiding damage to the cover, the reel and the hoisting equipment, and effectively improving the service life.

[0067] It should be noted that the covering materials are all films, thermal insulation blankets or curtains.

[0068] The closed-loop feedback tension control mechanism and the winding device provided by the present invention include a tension adjustment component, which is used to be connected to the mechanism to be monitored; a tension detection component, which is connected to the tension adjustment component and is used to monitor the tension value of the tension adjustment component in real time; a tension feedback component, wherein the input end of the tension feedback component is connected to the tension detection component and is used to receive the tension value monitored by the tension detection component in real time, and the output end of the tension feedback component is connected to the tension adjustment component and is used to send an adjustment instruction to the tension adjustment component. The tension detection component monitors the tension value of the tension adjustment component during the operation of the mechanism to be monitored in real time and transmits it to the tension feedback component. The tension feedback component sends a corresponding adjustment instruction according to the judgment result, thereby realizing the force adjustment of the mechanism to be monitored, preventing the mechanism to be monitored from being damaged due to uneven force, and improving the service life.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hoisting device, characterized in that: It includes a climbing tube, a mechanism to be monitored and a closed-loop feedback tension control mechanism, the mechanism to be monitored includes a climber and a reel, the climber is slidably sleeved on the climbing tube, the reel is connected to the climber, and the output end of the reel is connected to the covering; The closed-loop feedback tension control mechanism comprises: A tension adjustment component, the tension adjustment component is connected to the reel, the tension adjustment component comprises a belt motor, a tension wheel and a tension belt, the output end of the belt motor is connected to the first end of the tension belt, the tension belt is wound and connected to the tension wheel, and the second end of the tension belt is fixedly arranged; A tension detection assembly, the tension detection assembly comprising a spring and a trigger member, the first end of the spring is fixedly arranged, the second end of the spring is connected to the tensioning wheel, and the first end of the trigger member is connected to the tensioning wheel; A tension feedback component, the tension feedback component includes a controller and a travel switch group, the second end of the trigger member is triggered and adapted to the travel switch group, the travel switch group is connected to the input end of the controller, and the output end of the controller is electrically connected to the belt winding motor; The travel switch group includes a forward travel switch and a reverse travel switch, the second end of the trigger member is respectively adapted to trigger the forward travel switch and the reverse travel switch, and the forward travel switch and the reverse travel switch are respectively connected to the input end of the controller; The tension adjustment assembly also includes a shell, a fixing column is arranged in the shell, and the first end of the spring is connected to the fixing column.

2. The hoisting device according to claim 1, characterized in that: The climbing tube is provided with a connecting piece, and the connecting piece is connected to the second end of the tension belt through an elastic piece.

3. The hoisting device according to claim 1 or 2, characterized in that: The hoist is electrically connected to the controller.

4. The hoisting device according to claim 1, characterized in that: A tension plate is also provided in the shell, and the tension plate is provided with a pin shaft and a connecting column. The tension wheel is rotatably provided on the pin shaft, and the second end of the spring is connected to the connecting column. The tension plate moves synchronously with the tension wheel.

5. The hoisting device according to claim 4, characterized in that: A protective plate is provided at one end of the tension plate close to the spring, and the protective plates are provided at both sides of the spring.

6. The hoisting device according to claim 4, characterized in that: The first end of the trigger member is connected to the tension plate and moves synchronously with the tension plate.

7. The hoisting device according to any one of claims 4 to 6, characterized in that: A plurality of rotating shafts and a plurality of guide wheels are also arranged in the shell, and the guide wheels correspond to the rotating shafts one by one. The guide wheels are rotatably arranged on the rotating shafts and guide the winding of the tension belt.

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