CN219078673U - Closed loop feedback type tension control mechanism with switch function and winding device - Google Patents
Closed loop feedback type tension control mechanism with switch function and winding device Download PDFInfo
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- CN219078673U CN219078673U CN202223447338.0U CN202223447338U CN219078673U CN 219078673 U CN219078673 U CN 219078673U CN 202223447338 U CN202223447338 U CN 202223447338U CN 219078673 U CN219078673 U CN 219078673U
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Abstract
The utility model relates to the technical field of agriculture and animal husbandry, and provides a closed-loop feedback tension control mechanism with a switching function and a winding device. It comprises the following steps: the device comprises a tape coiling motor, a tensioning wheel, a tension tape coiling, a spring, a trigger piece, a controller, a travel switch group and a switch assembly. The output end of the winding motor is connected with the first end of the tension winding, the tension winding is wound and connected with the tensioning wheel, and the second end of the tension winding is fixedly arranged; the first end of the spring is fixedly arranged, the second end of the spring is connected with the tensioning wheel, and the first end of the trigger piece is connected with the tensioning wheel; the second end of the trigger piece is in trigger fit with a travel switch group, the travel switch group is connected with the input end of the controller, and the output end of the controller is electrically connected with the tape coiling motor; the switch assembly is connected with the winding motor, and the operating state of the winding motor is adjusted by using the switch assembly to control the starting, stopping and forward rotation and reverse rotation of the winding motor so as to facilitate the installation of the tension winding and meet the different installation modes of the winding device.
Description
Technical Field
The utility model relates to the technical field of agriculture and animal husbandry, in particular to a closed-loop feedback tension control mechanism with a switching function and a winding device.
Background
The closed loop feedback type tension control mechanism (application number is 202221007692.9) is used for transferring the dead weights of the lifting device and the climbing device from the cover to the winding belt by means of the cooperation of the lifting device, realizing the tension adjustment of the mechanism to be monitored, ensuring the synchronous movement of the cover and the lifting shaft, and effectively protecting the cover.
In the field installation process, the first step is to pay out the coiled tape, and the top end is fixed on the application field; when the winding wheel is used for fully paying out the winding, the winding wheel can be changed into a tightening winding, and the function error and damage of the whole structure are caused. In addition, in the actual use process, the arrangement of the winding wheel and the winding belt is fixed, so the rotating direction of the winding wheel winding belt and the unwinding belt is fixed, and when the winding device winds the covering, the rotating direction of the winding device winding the covering upwards is not fixed due to the different installation modes. The above-mentioned phenomenon that the rotation direction of the winding wheel is not matched with the upward rotation direction of the winding cover of the winding device causes that the installation mode of the winding device is greatly limited, and cannot meet various installation occasions.
Disclosure of Invention
The utility model provides a closed loop feedback type tension control mechanism with a switching function and a winding device, which are used for solving the defects that in the prior art, a winding motor is not powered off in time in the installation process of a winding, structural damage is easy to cause, or the specific rotation direction of the winding motor cannot meet different installation modes of the winding device.
The utility model provides a closed loop feedback tension control mechanism with a switching function, which comprises:
the tension adjusting assembly comprises a winding motor, a tensioning wheel and a tension winding, wherein the output end of the winding motor is connected with the first end of the tension winding, the tension winding is wound and connected with the tensioning wheel, and the second end of the tension winding is used for being fixedly arranged;
the tension detection assembly comprises a spring and a trigger piece, wherein the first end of the spring is fixedly arranged, the second end of the spring is connected with the tensioning wheel, and the first end of the trigger piece is connected with the tensioning wheel;
the tension feedback assembly comprises a controller and a travel switch group, the second end of the trigger piece is in trigger fit with the travel switch group, the travel switch group is connected with the input end of the controller, and the output end of the controller is electrically connected with the tape coiling motor;
the switch assembly is connected with the winding motor and used for controlling the working state of the winding motor.
According to the present utility model, there is provided a closed loop feedback tension control mechanism having a switching function, the switching assembly comprising: the first switch is positioned on the opposite side of the trigger piece relative to the travel switch group, and the second end of the trigger piece is in trigger fit with the first switch and is used for controlling the connection and disconnection of a power supply circuit of the tape motor, and specifically comprises the following components:
when the second end of the trigger piece is combined with the first switch, the first switch cuts off a power supply circuit of the tape motor;
when the second end of the trigger piece is disconnected from the first switch, a power supply circuit of the tape motor is conducted.
According to the closed-loop feedback tension control mechanism with the switching function, the winding motor is a bidirectional output shaft motor;
the switch assembly includes: the second switch is selectively connected with the bidirectional output shaft motor and is used for controlling the output direction of the bidirectional output shaft motor, and specifically comprises the following components:
the second switch is selectively connected with the first trigger point and the second trigger point in the second switch to enable the bidirectional output shaft motor to rotate in the forward direction or in the reverse direction.
According to the closed loop feedback tension control mechanism with the switching function, the tension adjusting assembly further comprises a shell, a fixed column is arranged in the shell, and the first end of the spring is connected with the fixed column.
According to the closed loop feedback type tension control mechanism with the switching function, the tension plate is further arranged in the shell, the tension plate is provided with the pin shaft and the connecting column, the tension wheel is rotatably arranged on the pin shaft, the second end of the spring is connected with the connecting column, and the tension plate and the tension wheel synchronously move; a protection plate is arranged at one end, close to the spring, of the tension plate, and the protection plates are arranged at two sides of the spring; the first end of the trigger piece is connected with the tension plate and moves synchronously with the tension plate.
According to the closed-loop feedback type tension control mechanism with the switching function, the shell is internally provided with the plurality of rotating shafts and the plurality of guide wheels, the guide wheels are in one-to-one correspondence with the rotating shafts, and the guide wheels are rotatably arranged on the rotating shafts and guide and wind the tension winding tape.
According to the closed loop feedback type tension control mechanism with the switching function, the travel switch group comprises a forward travel switch and a reverse travel switch, the second end of the trigger piece is respectively matched with the forward travel switch and the reverse travel switch in a triggering manner, and the forward travel switch and the reverse travel switch are respectively connected with the input end of the controller.
The utility model also provides a rolling device, which comprises a climbing pipe, a mechanism to be monitored and the closed loop feedback type tension control mechanism provided by the embodiment of the utility model, wherein the mechanism to be monitored comprises a climbing device and a rolling device, the climbing device is slidably sleeved on the climbing pipe, the rolling device is connected with the climbing device, and the output end of the rolling device is connected with a covering; the tension adjusting component is connected with the winding lifter.
According to the lifting device provided by the utility model, the climbing pipe is provided with the connecting piece, and the connecting piece is connected with the second end of the tension winding belt through the elastic piece.
According to the lifting device provided by the utility model, the lifting device is electrically connected with the controller.
The utility model provides a closed loop feedback tension control mechanism with a switch function and a winding device, comprising: the tension adjusting assembly is used for being connected with the mechanism to be monitored; the tension detection component is connected with the tension adjustment component and used for monitoring 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 used for receiving 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 used for sending an adjustment command to the tension adjustment component, the tension value of the tension adjustment component in the operation process of the mechanism to be monitored is monitored in real time through the tension detection component and is transmitted to the tension feedback component, and the tension feedback component sends a corresponding adjustment command according to the judgment result, so that the stress adjustment of the mechanism to be monitored is realized, the mechanism to be monitored is prevented from being damaged due to unbalanced stress, and the service life is prolonged; the switch assembly is connected with the winding motor and used for controlling the working state of the winding motor, and the switch assembly is used for adjusting the working state of the winding motor and controlling the starting, stopping, forward rotation and reverse rotation of the winding motor so as to facilitate the installation of the tension winding and meet the different installation modes of the winding device.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a closed loop feedback tension control mechanism with switch function provided in the present utility model, with a first switch installed in embodiment 1;
FIG. 2 is a side view of the first switch mounted in embodiment 1 of the closed loop feedback tension control mechanism with switch function provided by the present utility model;
fig. 3 is a front view of the first switch mounted in embodiment 1 of the lifting device provided by the present utility model;
FIG. 4 is a side view of the lift device of example 1 with a first switch installed;
fig. 5 is a schematic structural view of embodiment 2 of the lifting device according to the present utility model, in which a second switch is installed;
FIG. 6 is an enlarged view of a portion of FIG. 5A;
fig. 7 is a schematic circuit diagram of embodiment 3 of the present utility model for controlling a tape motor using a first switch and a second switch.
Reference numerals:
100. climbing the pipe; 110. a connecting piece; 210. a climbing device; 220. a lifter; 230. a winding shaft; 310. tension winding; 320. a tape coiling motor; 321. a reel; 330. a tension plate; 340. a tensioning wheel; 350. a spring; 360. a trigger; 361. an elastic member; 370. a travel switch group; 371. a forward travel switch; 372. a reverse travel switch; 380. fixing the column; 390. a housing; 391. a rotating shaft; 392. a guide wheel; 400: a first switch; 500: and a second switch.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A closed loop feedback tension control mechanism with switching function according to the present utility model is described below with reference to fig. 1-6. The closed loop feedback tension control mechanism with the switching function comprises:
the tension adjusting assembly is used for being connected with the mechanism to be monitored;
the tension detection component is connected with the tension adjustment component and used for monitoring 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 used for receiving the tension value monitored by the tension detection component in real time, and the output end of the tension feedback component is connected with the tension adjustment component and used for sending an adjustment instruction to the tension adjustment component;
the switch assembly is connected with the winding motor and used for controlling the working state of the winding motor.
Specifically, the switch component is specifically used for controlling the starting and stopping of the winding motor, the forward rotation and the reverse rotation, and the output shaft of the winding motor has the functions of forward rotation and reverse rotation and is specifically controlled according to the switch component.
The utility model also provides a rolling device, which comprises a climbing pipe 100, a mechanism to be monitored and the closed loop feedback tension control mechanism, wherein the mechanism to be monitored comprises a climbing device 210 and a rolling device 220, the climbing device 210 is slidably sleeved on the climbing pipe 100, the rolling device 220 is connected with the climbing device 210, and the output end of the rolling device 220 is connected with a covering; the tensioning assembly is connected to the climbing tube 100.
Specifically, the mechanism to be monitored is slidably sleeved on the climbing pipe 100, and the output end of the mechanism to be monitored is connected with the covering;
the tension adjusting assembly is connected with the climbing pipe 100, the output end of the tension adjusting assembly is provided with a tension winding belt 310, and the tension winding belt 310 is connected with the mechanism to be monitored and used for lifting or lowering the mechanism to be monitored. It will be appreciated that the climbing tube 100 is disposed in a vertical direction, and the mechanism to be monitored is configured to reel or unwind the covering and is slidably disposed over the climbing tube 100 along the length of the climbing tube 100, i.e., in the vertical direction.
Further, the tension adjusting assembly is connected with the climbing pipe 100, the output end of the tension adjusting assembly is provided with a tension winding belt 310, the tension winding belt 310 is connected with a mechanism to be monitored, the tension winding belt 310 is induced to tension, the winding or the unwinding of the tension winding belt 310 is judged, the mechanism to be monitored is lifted or lowered, the mechanism to be monitored and the covering are synchronously moved, the covering is prevented from being pulled to be damaged, and the service life of the covering is prolonged.
The mechanism to be monitored comprises a climbing device 210 and a winding device 220, wherein the climbing device 210 is slidably sleeved on the climbing pipe 100, the winding device 220 is connected with the climbing device 210, and the output end of the winding device 220 is connected with the covering. It can be appreciated that the climbing device 210 is fixedly connected with the climbing device 220, and the climbing device 210 is slidably sleeved on the climbing tube 100, so as to realize up-and-down movement of the climbing device 220 relative to the climbing tube 100. The output end of the winding device 220 is provided with a winding shaft 230, a winding pipe is detachably arranged on the winding shaft 230, one end of the covering is fixedly connected with the winding pipe, and the winding device 220 drives the winding shaft 230 to roll or unwind the covering when driving the winding pipe to rotate. By replacing the coil, installation of different covers is achieved, improving the applicability of the lifter 220.
Referring to fig. 1 and 3, the tension adjusting assembly includes a winding motor 320, a tension pulley 340, a tension detecting assembly and a tension feedback assembly, wherein an output end of the winding motor 320 is provided with a winding wheel 321, a first end of a tension winding 310 is connected with the winding wheel 321, the tension winding 310 is wound on the tension pulley 340, and a second end of the tension winding 310 is connected with a mechanism to be monitored.
The detection end of the tension detection component is connected with the tension winding belt 310 and is used for detecting the tension of the tension winding belt 310, the tension detection component is connected with the input end of the tension feedback component, and the output end of the tension feedback component is connected with the winding belt motor 320. It will be appreciated that the tensioning assembly specifically includes a housing 390, a web motor 320, a web wheel 321, a tensioning wheel 340, a tension sensing assembly, and a tension feedback assembly. Wherein the tape motor 320 is used to provide output power for winding or unwinding the tension tape 310. The winding motor 320 is installed on the housing 390, the housing 390 is connected with the climbing pipe 100, the output end of the winding motor 320 is arranged in the housing 390 in a penetrating way, and the winding wheel 321 is installed at the output end of the winding motor 320, and the winding motor 320 drives the winding wheel 321 to rotate.
Further, one end of the tension coil 310 is wound and connected with the coil wheel 321, when the coil wheel 321 rotates forward, the tension coil 310 is wound and unwound, and when the coil wheel rotates backward, the tension coil 310 is wound and unwound. The tension roller 310 is wound around the tension roller 340 and the guide roller 392, and further extends out of the housing 390. Such that a second end of the tension web 310 is connected to the mechanism to be monitored. So far, the winding wheel 321 is driven to rotate forwards by the winding motor 320 to realize the winding of the tension winding tape 310, and then the mechanism to be monitored is driven to move upwards by the tension winding tape 310; the winding wheel 321 is driven to rotate reversely through the winding motor 320, so that the tension winding tape 310 is wound and unwound, and then the mechanism to be monitored is lowered through the tension winding tape 310, so that the mechanism to be monitored moves downwards.
The detection end of the tension detection component is connected with the tension winding belt 310 and is used for detecting the tension of the tension winding belt 310, the tension detection component is connected with the input end of the tension feedback component, and the output end of the tension feedback component is connected with the winding belt motor 320. Specifically, the tension detecting component is configured to monitor the tension value of the tension winding 310 wound at the tension pulley in real time, and transmit the monitored tension value to the tension feedback component, where the tension feedback component compares the tension value with a set value, and sends a forward rotation speed, a reverse rotation speed or a stop adjustment command to the winding motor 320 according to the result of the determination, so as to achieve balance between the traction force output by the tension winding 310 and the total force generated when the covering is wound or unwound by the mechanism to be monitored, and realize synchronous action of the winding shaft 230 of the mechanism to be monitored and the covering.
Further explaining, in the winding process of the mechanism to be monitored, when the real-time tension value measured by the tension detection assembly is lower than the set value, the tension feedback assembly controls the winding motor 320 to accelerate winding of the tension winding 310 so as to improve the tension; when the real-time tension value measured by the tension detection assembly is higher than the set value, the tension feedback assembly controls the tape motor 320 to slow down or stop or reversely unwind the tension tape 310 to reduce the tension.
During unreeling, when the real-time tension value measured by the tension detection component is lower than the set value, the tension feedback component controls the tape motor 320 to slow down or stop or reversely reel the tension tape 310 to improve the tension; when the real-time tension value measured by the tension detection assembly is higher than the set value, the tension feedback assembly controls the tape motor 320 to accelerate the unwinding of the tension tape 310 to reduce the tension.
With continued reference to fig. 1-6, the tension detection assembly includes a spring 350 and a trigger 360, a first end of the spring 350 is fixed, a second end of the spring 350 is connected to the tensioning wheel 340, the trigger 360 is connected to the tensioning wheel 340, and a second end of the trigger 360 is connected to an input of the tension feedback assembly.
Further, the tension feedback assembly 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 in trigger fit with 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 with the input end of the controller, and the output end of the controller is electrically connected with the tape motor 320.
Specifically, the tension detecting assembly includes a spring 350 and a trigger 360 both disposed within a housing 390, a first end of the spring 350 being secured within the housing 390 and a second end of the spring 350 being coupled to the tensioner 340. In this embodiment, the trigger piece 360 is in an L-shaped configuration, and the trigger piece 360 is connected with the tensioning wheel 340, so that the trigger piece 360 can move synchronously with the tensioning wheel 340, thereby compressing or stretching the spring 350. The second end of the trigger piece 360 is located on the trigger piece of the forward travel switch 371 and the reverse travel switch 372 of the tension feedback assembly, in this embodiment, when the trigger piece 360 moves wholly upwards, 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 corresponding signals to the input end of the controller, and the controller correspondingly sends adjustment instructions to the tape motor 320.
Example 1:
as shown in fig. 1 to 4, the switch assembly of the closed loop feedback tension control mechanism with switch function and the lifting device provided in the present embodiment includes a first switch 400. The first switch 400 is located on the opposite side of the trigger 360 with respect to the travel switch group 370, and the second end of the trigger 360 is trigger-fitted with the first switch 400 for controlling the on and off of the power supply circuit of the tape motor 320. The specific triggering process of the triggering piece 360 is as follows: when the second end of the trigger 360 is combined with the first switch 400, the first switch 400 cuts off the power supply circuit of the tape motor 320; when the second end of the trigger 360 is disconnected from the first switch 400, the power supply circuit of the tape motor 320 is turned on.
In this embodiment, the initial position of the trigger piece 360 is a pressed state and combined with the first switch 400, and the setting of the circuit makes the tape releasing circuit in the tape motor 320 be in a conducting state when the first switch 400 is not triggered; the unwind circuit in the tape motor 320 is in an off state when the first switch 400 is activated. It will be appreciated that when the trigger 360 is in the initial position, i.e., in combination with the first switch 400, it is not in combination with the set of travel switches 370, i.e., does not trigger the set of travel switches 370; when the trigger 360 is disconnected from the first switch 400, it can move upward and engage the set of travel switches 370, i.e., trigger the set of travel switches 370. The first switch 400 is used in this embodiment to control the on-off of the discharging circuit in the tape motor 320, so as to control the start and stop of the tape motor 320.
Through the above arrangement, when the tension reel 310 is installed on site, the power is turned on, the trigger member 360 triggers the first switch 400 at the initial position, and at this time, the discharging circuit of the reel motor 320 is in an off state, the reel motor 320 does not rotate, and the tension reel 310 does not discharge outwards. When the tension coil 310 is pulled outwards, the tension pulley 340 moves upwards to drive the trigger piece 360 to leave the trigger position of the first switch 400 according to the arrangement structure shown in the figure, and at this time, the discharging direction circuit of the coil motor 320 is in a conducting state, and the discharging belt starts to discharge outwards. When the tape is stopped to be pulled outwards, as the tape motor 320 discharges the tape outwards, the tension wheel 340 is moved downwards under the force of the spring 350, and drives the trigger piece 360 to return to the initial position to trigger the first switch 400, at this time, the tape discharging circuit of the tape motor 320 is in an off state, and the tape motor 320 stops discharging the tape outwards. Through the control of the first switch 400 to the tape motor 320, the situation that the tape motor 320 is not timely powered off in the process of installing the tension tape 310, so that the whole mechanism is tensed or even damaged is avoided.
Example 2:
as shown in fig. 5 and 6, the closed loop feedback tension control mechanism with switch function and the winding device provided in the present embodiment, the switch assembly includes a second switch 500, and the winding motor 320 is a bi-directional output shaft motor; the second switch 500 is selectively connected to the bi-directional output shaft motor, and is used for controlling the output direction of the bi-directional output shaft motor. The process of the second switch 500 specifically controlling the bi-directional output shaft motor is: the second switch 500 selectively connects with the first trigger point and the second trigger point in the second switch to make the bi-directional output shaft motor rotate forward or reverse.
By adding a second switch 500, the present embodiment is configured such that if the second switch 500 is pressed to the left, the winding device is wound up clockwise as shown in the figure, and if the second switch 500 is pressed to the right, the winding device is wound up counterclockwise as shown in the figure. The second switch 500 is toggled to control the forward rotation output or the reverse rotation output of the tape motor 320, so that the fact that the winding device can be correctly matched with the tape motor 320 in any installation mode is satisfied.
Example 3:
as shown in fig. 7, the switch assembly in this embodiment includes a first switch 400 and a second switch 500, where the first switch 400 and the second switch 500 are respectively disposed on the front side and the back side of the winding device (i.e., fig. 3 shows the front side of the winding device, fig. 5 and fig. 6 show the back side of the winding device), the first switch 400 controls the start and stop of the winding motor 320, and the second switch 500 controls the forward rotation and reverse rotation of the winding motor 320.
The tension adjusting assembly comprises a shell 390, a pin shaft is arranged in the shell 390, the tension wheel 340 is rotatably arranged on the pin shaft, the shell 390 is provided with a sliding groove arranged along the length direction of the climbing pipe 100, and the pin shaft is movably arranged in the sliding groove. It can be appreciated that the housing 390 is provided with a pin thereon, so that the tension pulley 340 is rotatably mounted on the pin, thereby ensuring that the tension roll 310 is wound on the tension pulley 340, and simultaneously realizing winding or unwinding of the tension roll 310. The housing 390 is further provided with a chute, in which the sliding pin is mounted, and when the tensioning wheel 340 receives a tension change, the pin can move up and down in the chute along the length direction of the climbing pipe 100, that is, in the vertical direction, so as to drive the trigger piece 360 to move up and down, compressing or decompressing the spring 350.
In one embodiment, the inner wall of the housing 390 is provided with a fixing post 380, and the first end of the spring 350 is fixedly connected with the fixing post 380, so as to prevent the first end of the spring 350 from falling off, and ensure firmness.
In one embodiment, the housing 390 is further provided with a tension plate 330, one end of the pin is fixedly arranged on the tension plate 330, a gap is formed between the other end of the pin and the inner wall of the housing 390, the size of the gap is smaller than the axial thickness of the tensioning wheel 340, the tensioning wheel 340 can rotate between the housing 390 and the tension plate 330, the tensioning wheel 340 is effectively prevented from falling off from the pin, and the tensioning wheel 340 can be guaranteed to be driven to make corresponding movement when the tensioning wheel 340 receives tensioning force.
Further, the tension plate 330 is further provided with a connection post, the connection post is disposed between the inner wall of the housing 390 and the tension plate 330, one end of the connection post is fixedly connected with the tension plate 330, and the other end of the connection post is not connected with the housing 390. The second end of the spring 350 is fixedly connected with the connecting column, so that the tension plate 330 and the tension pulley 340 are reset to output elastic tension, that is, the force output by the spring 350 is opposite to the tension of the tension pulley 340 received by the tension coil 310.
In one embodiment, the tension plate is equipped with the guard plate near the one end of spring, and the guard plate extends to the direction that deviates from tension plate, and the both sides of spring all are equipped with the guard plate, realize the direction protection when stretching or shrink to the spring.
In one embodiment, the first end of the trigger piece 360 is fixedly connected to the side of the tension plate 330 near the travel switch group 370, and the synchronous movement of the trigger piece 360, the tension plate 330 and the tension wheel 340 is realized, so that the second end of the trigger piece 360 acts on the travel switch group 370.
In some embodiments, a plurality of rotating shafts 391 and a plurality of guiding wheels 392 are further disposed in the housing 390, the guiding wheels 392 are in one-to-one correspondence with the rotating shafts 391, and the guiding wheels 392 are rotatably disposed on the rotating shafts 391. It can be understood that the rotary shafts 391 and the guide wheels 392 are arranged in the housing 390 in a one-to-one correspondence manner, so as to realize the guiding and winding arrangement of the tension bands 310 in the housing 390.
In some embodiments, the climbing tube 100 is provided with a connector 110, the connector 110 being connected to the second end of the tension band by an elastic member 361. It will be appreciated that the first end of the elastic member 361 is fixedly connected to the climbing tube 100 by the connection member 110, and the connection 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 band 310, so as to provide elastic tension to the tension band 310.
It should be noted that, the elastic member 361 may be an elastic cord or a telescopic spring.
The connector 110 of the present embodiment may be a clip or a welded plate.
The working process of the lifting device provided by the embodiment is as follows:
initial stop phase
The motorized jack 220, the climbing device 210 and the tensioning assembly exert a pulling force F on the tensioning web 310 equivalent to its weight due to its own weight 1 The tension belt 310 is pulled to drive the tension wheel 340 and the trigger piece 360 to compress the spring 350, and the pressure value of the spring 350 is 2F 1 By calculating in advance and selecting the shape of the spring 350, the spring coefficient of the spring 350 is p, and the rolling reduction D of the spring 350 at the moment can be obtained by calculation 1 ＝2F 1 /p。
Setting trigger 360 to move upward D 1 After the distance, the trigger piece is just pressed to or close to the trigger pieces of the forward travel switch 371 and the reverse travel switch 372, but the process does not cause the trigger piece 360 to trigger the forward travel switch 371 and the reverse travel switch 372, and the pulling force F is at the initial stop stage 1 All are carried by the climbing tube 100 via the elastic element 361 and the connecting element 110, so that the device-side cover can be protected from additional sagging during this phaseAnd (5) pulling directly.
The winding up stage of the winding up device 220
The winding tube is wound up, the diode of the forward travel switch 371 is electrified, and the diode of the reverse travel switch 372 is powered off, so that the winding up device 220 and the climbing device 210 are driven to ascend. By this change, the tension of the tension web 310 on the lifter 220 is reduced to F 2 Tension change δF 1 ＝F 1 -F 2 The spring 350 is now stressed by a pressure of 2F 2 Calculated, the amount D of the spring 350 is obtained 2 ＝2F 2 And/p. Due to F 2 <F 1 It can be seen that D 2 <D 1 That is, the trigger piece 360 is separated from the trigger pressing pieces of the forward travel switch 371 and the reverse travel switch 372 at the moment, and the forward travel switch 371 sends a detection signal to the controller, and the controller controls the tape winding motor 320 to drive the tape winding wheel 321 to rotate and wind up the tension tape 310 until the tension change amount delta F is reached 1 Re-transfer of the cover to the tension band 310 to restore the tension band 310 to F 1 From the above analysis, the trigger piece 360 moves upward to press against the trigger pressing pieces of the forward travel switch 371 and the reverse travel switch 372 again, and the controller controls the tape winding motor 320 to stop winding, so that the normal operation of the winding-up section of the lifter 220 is completed.
From the above, it can be seen that the lifter 220 rolls up the ascending stage, and the weights of the lifter 220 and the climbing device 210 are all borne by the tensioning assembly, only for a small portion of the weight (δf described above 1 ) The cover bears that part of the force has negligible influence on the cover in the actual running process, so that the device side cover can be prevented from being subjected to additional vertical pulling force in the whole process at the stage.
Stage of rolling-down of rolling-up device 220
The winding tube rolls down, the diode of the forward travel switch 371 is powered off, and the diode of the reverse travel switch 372 is powered on, so that the winding up device 220 and the climbing device 210 are driven down. By this change, the tension of the tension web 310 increases with respect to the lifter 220 until F is reached 1 As can be seen from the foregoing analysis, the trigger 360 is nowIs well pressed to the trigger pressing sheets of the forward travel switch 371 and the reverse travel switch 372, the reverse travel switch 372 sends a detection signal to the controller, the controller controls the tape motor 320 to start unreeling, and the tension of the tension tape 310 on the lifter 220 is reduced to F due to the change 2 From the foregoing analysis, the trigger piece 360 is separated from the trigger pads of the forward travel switch 371 and the reverse travel switch 372, and the controller controls the tape motor 320 to stop unwinding. The reeler 220 still controls the reeled tube to descend at the moment, and the tension of the tension tape 310 on the reeler 220 is increased to recover F 1 The tape winding motor 320 starts unwinding. The normal operation of the winding-down stage of the lifter 220 is completed in this cycle, and it is understood from the above that the gravity of the lifter 220 and the climber 210 is all borne by the tension adjusting assembly, and only a small part of the gravity (δf 1 ) The cover bears that part of the force has negligible influence on the cover in the actual running process, so that the device side cover can be prevented from being subjected to additional vertical pulling force in the whole process at the stage.
Through the above description of the operation in the stop, up and down stages, it can be known that the lifter 220 is connected with the tension adjusting component, so as to prevent the device side cover from being subjected to additional vertical tension in the whole operation process, thereby preventing the cover, the winding pipe and the winding device from being damaged, and effectively prolonging the service life.
The covering is a film or a heat preservation quilt or curtain.
The utility model provides a closed loop feedback type tension control mechanism and a rolling device, which comprise a tension adjusting component, wherein the tension adjusting component is used for being connected with a mechanism to be monitored; the tension detection component is connected with the tension adjustment component and used for monitoring the tension value of the tension adjustment component in real time; the tension feedback assembly is connected with the tension detection assembly at the input end, is used for receiving the tension value monitored by the tension detection assembly in real time, is connected with the tension adjustment assembly at the output end, is used for sending an adjustment command to the tension adjustment assembly, is used for monitoring the tension value of the tension adjustment assembly in the operation process of the mechanism to be monitored in real time through the tension detection assembly and transmitting the tension value to the tension feedback assembly, and the tension feedback assembly sends a corresponding adjustment command according to the judgment result, so that the stress adjustment of the mechanism to be monitored is realized, the mechanism to be monitored is prevented from being damaged due to unbalanced stress, and the service life is prolonged.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A closed loop feedback tension control mechanism with switching function, comprising:
the tension adjusting assembly comprises a winding motor, a tensioning wheel and a tension winding, wherein the output end of the winding motor is connected with the first end of the tension winding, the tension winding is wound and connected with the tensioning wheel, and the second end of the tension winding is used for being fixedly arranged;
the tension detection assembly comprises a spring and a trigger piece, wherein the first end of the spring is fixedly arranged, the second end of the spring is connected with the tensioning wheel, and the first end of the trigger piece is connected with the tensioning wheel;
the tension feedback assembly comprises a controller and a travel switch group, the second end of the trigger piece is in trigger fit with the travel switch group, the travel switch group is connected with the input end of the controller, and the output end of the controller is electrically connected with the tape coiling motor;
the switch assembly is connected with the winding motor and used for controlling the working state of the winding motor.
2. The closed loop feedback tension control mechanism with switching function of claim 1, wherein the switching assembly comprises: the first switch is positioned on the opposite side of the trigger piece relative to the travel switch group, and the second end of the trigger piece is in trigger fit with the first switch and is used for controlling the connection and disconnection of a power supply circuit of the tape motor, and specifically comprises the following components:
when the second end of the trigger piece is combined with the first switch, the first switch cuts off a power supply circuit of the tape motor;
when the second end of the trigger piece is disconnected from the first switch, a power supply circuit of the tape motor is conducted.
3. The closed loop feedback tension control mechanism with switching function of claim 1, wherein the tape motor is a bi-directional output shaft motor;
the switch assembly includes: the second switch is selectively connected with the bidirectional output shaft motor and is used for controlling the output direction of the bidirectional output shaft motor, and specifically comprises the following components:
the second switch is selectively connected with the first trigger point and the second trigger point in the second switch to enable the bidirectional output shaft motor to rotate in the forward direction or in the reverse direction.
4. The closed loop feedback tension control mechanism with switching function of claim 1, wherein the tension adjustment assembly further comprises a housing having a fixed post disposed therein, the first end of the spring being connected to the fixed post.
5. The closed loop feedback tension control mechanism of claim 4, wherein a tension plate is further arranged in the housing, the tension plate is provided with a pin shaft and a connecting column, the tension wheel is rotatably arranged on the pin shaft, the second end of the spring is connected with the connecting column, and the tension plate moves synchronously with the tension wheel; a protection plate is arranged at one end, close to the spring, of the tension plate, and the protection plates are arranged at two sides of the spring; the first end of the trigger piece is connected with the tension plate and moves synchronously with the tension plate.
6. The closed loop feedback tension control mechanism according to claim 4 or 5, wherein a plurality of rotating shafts and a plurality of guide wheels are further arranged in the shell, the guide wheels are in one-to-one correspondence with the rotating shafts, and the guide wheels are rotatably arranged on the rotating shafts and guide and wind the tension winding tape.
7. The closed loop feedback tension control mechanism of claim 1, wherein the travel switch set comprises a forward travel switch and a reverse travel switch, the second end of the trigger member is trigger-adapted to the forward travel switch and the reverse travel switch, respectively, and the forward travel switch and the reverse travel switch are connected to the input of the controller, respectively.
8. A jacking device, characterized by comprising a climbing pipe, a mechanism to be monitored and the closed loop feedback tension control mechanism as claimed in any one of claims 1 to 7, wherein the mechanism to be monitored comprises a climbing device and a jacking device, the climbing device is slidably sleeved on the climbing pipe, the jacking device is connected with the climbing device, and the output end of the jacking device is connected with a covering; the tension adjusting component is connected with the winding lifter.
9. The lifting device of claim 8, wherein the climbing tube is provided with a connector connected to the second end of the tension web by an elastic member.
10. The lift device of claim 8 or 9, wherein the lift is electrically connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223447338.0U CN219078673U (en) | 2022-12-22 | 2022-12-22 | Closed loop feedback type tension control mechanism with switch function and winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223447338.0U CN219078673U (en) | 2022-12-22 | 2022-12-22 | Closed loop feedback type tension control mechanism with switch function and winding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219078673U true CN219078673U (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223447338.0U Active CN219078673U (en) | 2022-12-22 | 2022-12-22 | Closed loop feedback type tension control mechanism with switch function and winding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219078673U (en) |
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2022
- 2022-12-22 CN CN202223447338.0U patent/CN219078673U/en active Active
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