Novel electric drive winding drum

Abstract

A novel electric drive winding drum comprises an electric drive winding drum body, a wireless remote control mechanism, a force measuring mechanism, a wireless receiving mechanism and a control mechanism. The force measuring mechanism comprises a pressure resistor, a guide shell, a movable block, a spring and a guide rod, the upper end of the guide rod is mounted at the inner upper end of the guide shell, the spring movably sleeves the outer upper part of the guide rod, and the guide rod is sleeved in a through hole of the movable block; a top plate is installed at the upper end of the movable block, a pressure resistor is installed at the upper end in a guide shell, and the two sides of the guide shell are externally installed on the two sides of an electric guide mechanism rack. And the electric wireless receiving mechanism and the control mechanism are arranged in the electric control box and are electrically connected. According to the utility model, the winding drum steering of the electrically driven winding drum body can be conveniently controlled in a wireless mode, convenience is brought to workers, the power supply of the motor can be automatically turned off when the winding drum finishes winding a cable and the workers do not turn off a main power supply in time due to various reasons, the front part of the cable is effectively prevented from being snapped, and a good protection effect is achieved; and stable and reliable work of the whole equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cable reel equipment, in particular to a novel electric drive reel. Background Art

[0002] The cable reel is a widely used mechanism, which mainly provides winding functions of power supply, control power supply or control signal cable for electric equipment, and is widely used in port cranes, container cranes, ship loaders, tower cranes, mobile electric equipment (such as welding machines), etc. The cable reel is generally driven by machine drive, human drive and scroll spring as the power (the cable reel shaft is installed with an electric slip ring. According to the different positions of the electric slip ring installed on the frame, the head end of the cable wound on the outer end of the reel is connected to the outer ring or inner ring of the electric slip ring rotating at the side end of the reel shaft, and the power supply or signal, control power cable end is connected to the inner ring or outer ring of the fixed electric slip ring, so that the reel can supply power to the corresponding equipment or output signals, control power, etc. when winding the cable). Among them, the machine drive is divided into motor reduction mechanism drive, hydraulic motor drive, etc. according to the power; the cable reel driven by the motor reduction mechanism is widely used due to its convenient control and compact structure (the motor reduction mechanism of the electric drive reel body drives the reel body to rotate to reel or unreel the cable). In the actual application of the cable reel driven by the motor reduction mechanism (hereinafter referred to as the electric drive reel), in order to realize the orderly sending and receiving of the cable on the reel, an electric guide mechanism is generally installed on the front end thereof. The electric guide mechanism moves back and forth left and right under the control of the supporting control system of the electric drive reel, so that the cable can move horizontally from left to right and from right to left and be evenly wound on the reel, or be unwound from the reel.

[0003] Although the existing electric drive reels have met the actual production needs to a certain extent, they are limited by the structure and still have the following technical disadvantages. First, the staff can only manually operate the power switch to control the motor rotation direction of the motor reduction mechanism, and then reel in or unreel the cable through the reel body, which will bring inconvenience to the staff. Second, it does not have a cable reeling detection function. In this way, when the reel body reels the cable too tightly and the staff does not turn off the power switch of the motor reduction mechanism of the electric drive reel in time, there is a probability of breaking the front end of the cable. In summary, it is particularly important to provide a cable reel that can wirelessly control the working mode of the equipment and prevent the cable from being broken. Utility Model Content

[0004] In order to overcome the drawbacks of existing electric drive reels as described in the background technology due to structural limitations, the utility model provides a new electric drive reel based on an electric drive reel body. Under the joint action of relevant mechanisms during application, the staff can conveniently control the reel steering of the electric drive reel body in a wireless manner, which brings convenience to the staff. In addition, when the power switch is not turned off manually after the cable is wound up, the power supply of the motor can be automatically turned off, thereby effectively preventing the cable from being broken.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel electric-driven reel comprises an electric-driven reel body and a wireless remote control mechanism, and is characterized in that it also has a force measuring mechanism, a wireless receiving mechanism and a control mechanism; the force measuring mechanism comprises a pressure resistor, a guide shell, a movable block, a spring and a guide rod, the lower end of the guide shell is an open structure, the side end of the movable block has a guide hole, the upper end of the guide rod is installed at the inner upper end of the guide shell, the spring is movably sleeved on the outer upper part of the guide rod, and the guide rod is led downward through the guide hole of the movable block, and a limit plate is installed at the lower end of the guide rod; a top plate is installed at the upper end of the movable block, and the pressure resistor is installed at the inner upper end of the guide shell; the two sides of the guide shell are respectively installed on the two sides of the electric guide mechanism frame of the electric-driven reel body; the wireless receiving mechanism and the control mechanism are installed in an electric control box, the power output end of the control mechanism is electrically connected to the control signal end of the wireless receiving mechanism, and the power output end of the wireless receiving mechanism is electrically connected to the power input end of the motor reduction mechanism of the electric-driven reel body; the two trigger ends of the control mechanism are electrically connected to the two ends of the pressure resistor.

[0007] Furthermore, a buffer pad is installed on the force-bearing surface of the pressure resistor, and the lower end of the buffer rubber pad is in contact with the upper end of the top plate.

[0008] Furthermore, the lower end of the movable block is lower than the height of the wire groove between the inner sides of the two guide wheels of the electric guide mechanism.

[0009] Furthermore, the inner diameter of the guide shell is larger than the outer diameter of the movable block, and the inner diameters of the guide hole and the spring are larger than the outer diameter of the guide rod.

[0010] Furthermore, the wireless receiving mechanism includes an electrically connected relay and a wireless receiving circuit module, the two power output ends of the wireless receiving circuit module are respectively connected to the positive power input ends of the two relays, and the negative power input end of the wireless receiving circuit module is connected to the negative power input ends of the two relays.

[0011] Furthermore, the control mechanism includes an electrically connected adjustable resistor, a diode, a resistor, a thyristor, a relay, and a three-terminal voltage detector, wherein the positive power supply input terminal of the three-terminal voltage detector is connected to the negative electrode of the diode, the positive electrode of the diode is connected to one end of the adjustable resistor and the anode of the thyristor, the output terminal of the three-terminal voltage detector is connected to one end of the resistor, the other end of the resistor is connected to the control electrode of the thyristor, the cathode of the thyristor is connected to the positive power supply input terminal of the relay, and the other end of the adjustable resistor is connected to the negative power supply input terminal of the three-terminal voltage detector.

[0012] Compared with the prior art, the utility model has the following beneficial effects: (1) The utility model is based on an electric drive reel body. During application, the staff can conveniently control the reel steering of the electric drive reel body wirelessly, which brings convenience to the staff because the staff does not need to manually touch and operate. (2) When the reel has finished winding the cable and the staff fails to turn off the main power in time due to various reasons, the utility model can automatically turn off the power of the motor under the joint action of the control mechanism and the force measuring mechanism, effectively preventing the front part of the cable from being pulled off, playing a good protective role, and ensuring the stable and reliable operation of the equipment as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model and a partially enlarged structure.

[0015] Figure 2 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0016] Figure 1 , 2As shown in the figure, a new type of electric cable reel includes an electric drive reel body 1, a power module W1, a wireless remote control mechanism W5, a battery G1, and also has a force measuring mechanism 2, a wireless receiving mechanism 3, and a control mechanism 4; the force measuring mechanism includes a pressure resistor RT, a guide shell 21, a movable block 22, a spring 23, and a guide rod 24. The lower end of the rectangular hollow guide shell 21 is an open structure, and the two sides of the movable block 22 have a guide hole 221 that runs from top to bottom. The upper ends of the two guide rods 24 are respectively welded to the two sides of the upper end of the guide shell 21, and the two springs 23 are respectively movably sleeved on the outer sides of the upper parts of the two guide rods 24. , and the two guide rods 24 are respectively led downward through the guide holes 221 on both sides of the movable block, and the two guide rods 24 are located at the lower end of the movable block and are respectively welded with a limit plate 25 with an outer diameter larger than the outer diameter of the guide hole; a top plate 222 is welded to the middle part of the upper end of the movable block, and the pressure resistor RT is installed in the middle part of the upper end of the guide shell 21 with its force-bearing surface facing the lower end; the outer sides of the rear end of the guide shell 21 are respectively welded to the left and right sides of the front end of the electric guide mechanism frame 101 of the electric drive reel body; the power module W1, the wireless receiving mechanism 3, the control mechanism 4, and the battery G1 are installed on the circuit board in the electric control box 5.

[0017] Figure 1 , 2 As shown in , a buffer rubber pad 26 is glued under the force-bearing surface of the pressure resistor RT, and the lower end of the buffer rubber pad 26 (which protects the force-bearing surface of the pressure resistor RT) is in contact with the upper end of the top plate 222. The lower end of the movable block 22 is slightly lower than the height of the wire groove between the inner sides of the two guide wheels 102 of the electric guide mechanism (through which the cable passes forward). The inner diameter of the guide shell 21 is larger than the outer diameter of the movable block 22, and the inner diameters of the guide hole 221 and the spring 23 are larger than the outer diameter of the guide rod 24. The wireless receiving mechanism includes relays K1 and K2 and a wireless receiving circuit module W2 connected via circuit board wiring. The two power output terminals 3 and 4 of the wireless receiving circuit module W2 are respectively connected to the positive power input terminals of the two relays K1 and K2, and the negative power input terminal 2 of the wireless receiving circuit module W2 is connected to the negative power input terminals of the two relays K1 and K2. The control mechanism includes an adjustable resistor RP2, a diode VD2, a resistor R2, a thyristor VS, a relay K3, and a three-terminal voltage detector W4 connected via circuit board wiring. The positive power input terminal 2 of the three-terminal voltage detector W4 is connected to the negative electrode of the diode VD2, the positive electrode of the diode VD2 is connected to one end of the adjustable resistor RP2 and the anode of the thyristor VS, the output terminal 1 of the three-terminal voltage detector W4 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the control electrode of the thyristor VS, the cathode of the thyristor VS is connected to the positive power input terminal of the relay K3, and the other end of the adjustable resistor RP2 is connected to the negative power input terminal 3 of the three-terminal voltage detector W4.

[0018] Figure 1 ,2 As shown in the figure, the power input terminals 1 and 2 of the power module W1, the two control power input terminals of the relay K3 of the control mechanism and the two poles of the AC 220V power supply are connected by wires respectively, and the power output terminals 3 and 4 of the power module W1 are connected in series through the power switch D1 (the handle is located outside the front end of the electric control box) and the power input terminals of the wireless receiving mechanism, the wireless receiving circuit module W2, the anode of the thyristor VS of the power input terminal of the control mechanism and the negative power input terminal of the relay K3, and the two ends of the power input of the battery G1 are connected by wires respectively (the battery G1 is usually float charged, and the relevant circuits can still be powered after the 220V power supply is cut off). The two normally closed contact terminals of the power output terminal relay K3 of the control mechanism and the control power input terminals of the control signal terminal relays K1 and K2 of the wireless receiving mechanism, and the main power input terminal of the motor reduction mechanism M of the electric drive reel body are connected by wires respectively, and the two normally open contact terminals of the power output terminal relays K1 and K2 of the wireless receiving mechanism and the two ends of the running capacitor C1 of the motor reduction mechanism M of the electric drive reel body are connected by wires respectively. The two triggering ends of the control mechanism, the anode of the thyristor VS and the positive electrode of the diode VD2 and the two ends of the pressure resistor RT (the connected wires are led upward through the outer opening at the upper end of the guide shell) are connected respectively through wires.

[0019] Figure 1 , 2As shown in , after the AC power is input to the power input terminal of the power module W1, the power output terminals 3 and 4 of the power module W1 output a stable DC 12V power supply which enters the power input terminals of the control mechanism and the wireless receiving mechanism, and the above mechanisms are powered on and work. The present invention is based on the electric drive reel body 1. In the application, the reel body 103 driven by the motor reduction mechanism of the electric drive reel body 1 rotates clockwise or counterclockwise to reel in the cable or unwind the cable 6. The electric guide mechanism 104 of the electric drive reel body 1 moves back and forth left and right under the control of the matching control system of the electric drive reel, so that the cable can move horizontally from left to right and from right to left to be evenly wound on the reel body 103, or unwind from the reel body 103 (the above is an existing mature technology, and the present invention does not provide any protection). The staff member presses (and then releases) the first transmitting button S1 of the wireless remote control mechanism W5 carried by him, and the wireless remote control mechanism W5 will emit the first wireless closing signal. After the wireless receiving circuit module W2 receives the signal, its 3-pin output high-level signal enters the positive power input terminal of the relay K1, and the relay K1 is energized to close its control power input terminal and the normally open contact terminal. In this way, one pole of the 220V AC power supply enters the main power input terminal of the motor reduction mechanism M of the electric drive reel body through one of the normally closed contact terminals of the relay K3, and the other pole of the 220V AC power supply enters the operating capacitor C1 of the motor reduction mechanism M of the electric drive reel body through the control power input terminal and the normally open contact terminal of the relay K1. The motor of the motor reduction mechanism M rotates clockwise, and under the joint action of the reduction gear in the motor reduction mechanism M, the motor reduction mechanism M of the electric drive reel body drives the reel body 103 to reel the cable 6 counterclockwise. The staff member presses (and then releases) the second transmitting button S2 of the wireless remote control mechanism W5 carried with him, and the wireless remote control mechanism W5 will emit a second wireless closing signal. After the wireless receiving circuit module W2 receives it, its 4-pin output high-level signal enters the positive power input terminal of the relay K2, and the relay K2 is energized to close its control power input terminal and the normally open contact terminal. In this way, one pole of the 220V AC power supply enters the main power input terminal of the motor reduction mechanism M of the electric drive reel body through one of the normally closed contact terminals of the relay K3, and the other pole of the 220V AC power supply enters the other end of the operating capacitor C1 (withstand voltage 400V, capacity 10μF) of the motor reduction mechanism M of the electric drive reel body (the motor is a capacitor-operated motor with a power of 3KW) through the control power input terminal and the normally open contact terminal of the relay K2. The motor of the motor reduction mechanism M rotates counterclockwise, and under the joint action of the reduction gear in the motor reduction mechanism M, the motor reduction mechanism M of the electric drive reel body drives the reel body 103 to unwind the cable 6 clockwise.When the reeled or unreeled cable 6 is in place, the staff member presses the first transmitting button S1 or the second transmitting button S2 of the portable wireless remote control mechanism W5 with his finger again, and the wireless remote control mechanism W5 will emit the first or second wireless open-circuit signal. After the wireless receiving circuit module W2 receives it, its 3rd or 4th pin stops outputting power, and the relay K1 or K2 loses power and its control power input terminal and the normally open contact terminal are open. In this way, one end or the other end of the operating capacitor C1 of the motor reduction mechanism M of the electric drive reel body loses power, and the motor reduction mechanism M of the electric drive reel body stops rotating clockwise or counterclockwise (when both relays K1 and K2 lose power, the motor reduction mechanism M loses power and no longer drives the reel body 103 to rotate).

[0020] Figure 1 , 2As shown in, when the reel body 103 reels the cable, the cable 6 is located at the lower end of the movable block 22. When the reel body 103 reels the cable without straightening it (the cable of the electrical equipment is relatively drooping), under the elastic force of the spring 23, the movable block 22 moves downward to the stop point along the guide rod 24 through the guide hole 221, and the force of the top plate 222 on the force surface of the pressure resistor RT is relatively low, the resistance value of the pressure resistor RT is relatively large, and the voltage divided between the top plate 222 and the adjustable resistor RP2 is large. In this way, the 12V power supply enters the 2nd foot signal voltage of the three-terminal voltage detector W4 through the pressure resistor RT and the adjustable resistor RP2 is lower than the 4.75V threshold voltage of the three-terminal voltage detector W4, and the 1st foot of the three-terminal voltage detector W4 outputs a low level, then the thyristor VS will not be turned on, the relay K3 continues to lose power, and the motor reduction mechanism M continues to be powered on; when the reel body 103 reels the cable and straightens it (the length between the cable of the electrical equipment and the electric reel body is large), the reel 222 moves downward to the stop point along the guide rod 24 through the guide hole 221, and the top plate 222 acts on the force surface of the pressure resistor RT. The resistance value of the pressure resistor RT is relatively large, and the voltage divided between the top plate 222 and the adjustable resistor RP2 is large. In this way, the 12V power supply enters the 2nd foot signal voltage of the three-terminal voltage detector W4 through the pressure resistor RT and the adjustable resistor RP2 is lower than the 4.75V threshold voltage of the three-terminal voltage detector W4, and the 1st foot of the three-terminal voltage detector W4 outputs a low level. Then, the thyristor VS will not be turned on The straightened cable 6 will overcome the elastic force of the spring 23, and the movable block 22 will move upward along the guide rod 24 through the guide hole 221. The top plate 222 will exert a relatively large force on the pressure resistor RT (the rubber pad only has a shock-absorbing protection function and does not affect the force of the top plate on the pressure resistor RT), and the resistance value of the pressure resistor RT is relatively small, and the voltage divided between the pressure resistor RT and the adjustable resistor RP2 is small. In this way, the 12V power supply enters the 2nd foot of the three-terminal voltage detector W4 through the pressure resistor RT and the adjustable resistor RP2, and the signal voltage is higher than the 4.75V threshold voltage of the three-terminal voltage detector W4. The 1st foot of the three-terminal voltage detector W4 outputs a high level, and the high level is triggered by the resistor R2 to limit the current and reduce the voltage, and the thyristor VS is turned on, and then the relay K3 is energized to attract its control power input terminal and the normally closed contact terminal to open the circuit. Then, the control power input terminals of the relays K1 and K2 no longer have power input, and the motor reduction mechanism M no longer drives the reel body to rotate. Through the above, the staff of the new base can conveniently control the reel steering of the electric drive reel body wirelessly, which brings convenience to the staff because the staff does not need to manually touch the operation; when the reel has completed winding the cable and the staff fails to turn off the main power in time due to various reasons, the power supply of the motor reduction mechanism M motor can be automatically turned off under the joint action of the control mechanism and the force measuring mechanism, which effectively prevents the cable from being broken, plays a good protective role, and ensures the overall stable and reliable operation of the equipment. Figure 2As shown, the power supply mechanism W1 is a finished product of an AC 220V to DC 12V switching power supply module; the resistance value of the resistor R2 is 2KK; the thyristor VS is a single-phase thyristor of model MCR100-1; the model of the three-terminal voltage detector W4 is AN051A; the models of the relays K1, K2, and K3 are DC12V; the model of the diode VD2 is 1N4007 (unidirectional conduction); the resistance value of the adjustable resistor RP2 is 470K (the technician adjusts the resistance value to a relatively large value, so that the pressure is large when the top plate acts on the force surface of the pressure resistor RT. When the force is small, the signal power entering the three-terminal voltage detector W4 will be greater than 4.7 5V, that is, the degree of straightening of the new detection cable is relatively small; the technicians adjust the resistance value to be relatively small and the voltage division is small, so that when the force exerted by the top plate on the force-bearing surface of the pressure resistor RT is large, the signal power entering the three-terminal voltage detector W4 will be greater than 4.75V, that is, the degree of straightening of the new detection cable is relatively large); the pressure resistor RT is a resistance value pressure resistor of model FSR402; the wireless remote control mechanism W4 and the wireless receiving circuit module A2 are finished products of the wireless transmitting and receiving module components of model FM200 (the wireless signal receiving and sending distance is 200 meters, which is consistent with the function of the automotive wireless transmitting and receiving components).

[0021] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the utility model.

[0022] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel electric drive reel, comprising an electric drive reel body and a wireless remote control mechanism, characterized in that: It also has a force measuring mechanism, a wireless receiving mechanism, and a control mechanism; the force measuring mechanism includes a pressure resistor, a guide shell, a movable block, a spring, and a guide rod, the lower end of the guide shell is an open structure, the side end of the movable block is provided with a guide hole, the upper end of the guide rod is installed at the inner upper end of the guide shell, the spring is movably sleeved on the outer upper part of the guide rod, and the guide rod is led downward through the guide hole of the movable block, and a limit plate is installed at the lower end of the guide rod; a top plate is installed at the upper end of the movable block, and the pressure resistor is installed at the inner upper end of the guide shell; the two sides of the guide shell are respectively installed on the two sides of the electric guide mechanism frame of the electric drive reel body; the wireless receiving mechanism and the control mechanism are installed in an electric control box, the power output end of the control mechanism is electrically connected to the control signal end of the wireless receiving mechanism, and the power output end of the wireless receiving mechanism is electrically connected to the power input end of the motor reduction mechanism of the electric drive reel body; the two trigger ends of the control mechanism are electrically connected to the two ends of the pressure resistor.

2. The new electric drive reel according to claim 1 is characterized in that: A buffer pad is installed on the force-bearing surface of the pressure resistor, and the lower end of the buffer rubber pad is in contact with the upper end of the top plate.

3. The new electric drive reel according to claim 1 is characterized in that: The lower end of the movable block is lower than the height of the wire groove between the inner sides of the two guide wheels of the electric guide mechanism.

4. The new electric drive reel according to claim 1 is characterized in that: The inner diameter of the guide shell is larger than the outer diameter of the movable block, and the inner diameters of the guide hole and the spring are larger than the outer diameter of the guide rod.

5. The new electric drive reel according to claim 1 is characterized in that: The wireless receiving mechanism includes an electrically connected relay and a wireless receiving circuit module. The two power output ends of the wireless receiving circuit module are respectively connected to the positive power input ends of the two relays, and the negative power input end of the wireless receiving circuit module is connected to the negative power input ends of the two relays.

6. The new electric drive reel according to claim 1 is characterized in that: The control mechanism includes an electrically connected adjustable resistor, a diode, a resistor, a thyristor, a relay, and a three-terminal voltage detector. The positive power supply input terminal of the three-terminal voltage detector is connected to the negative electrode of the diode, the positive electrode of the diode is connected to one end of the adjustable resistor and the anode of the thyristor, the output end of the three-terminal voltage detector is connected to one end of the resistor, the other end of the resistor is connected to the control electrode of the thyristor, the cathode of the thyristor is connected to the positive power supply input terminal of the relay, and the other end of the adjustable resistor is connected to the negative power supply input terminal of the three-terminal voltage detector.

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