Remote control device for double-beam bridge crane
Patent Information
- Application Number
- CN202421362406.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The traditional driver cab control method of double-beam bridge cranes causes operators to be unable to choose their sight, perspective and distance freely, resulting in unclear gestures, unclear speech, and errors in information transmission, increasing safety hazards, and lifting when operating in complex environments Too long time leads to fatigue of operators, and ground commanders cannot avoid toxic and harmful gases.
Design a remote control control device for double-beam bridge crane, including a large truck operating mechanism, a small truck operating mechanism, a hook lift mechanism, an electrical control cabinet, a receiver, a cab and a sky truck lighting, transmit command signals through the remote control and receive The device analyzes and processes signals, controls the operation of each motor, and realizes the wireless operation of the crane.
It reduces the labor intensity of operators, improves the equipment operation efficiency and overall safety factor, eliminates misoperation and safety hazards caused by fatigue driving and information transmission errors, and solves the problem that ground personnel cannot avoid toxic and harmful gases.
Smart Images
Figure CN222512754U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lifting equipment, and in particular relates to a remote control device for a double-beam bridge crane. Background Art
[0002] The double-beam bridge crane in the zinc powder workshop is one of the main lifting equipment commonly used. The control method of this crane adopts the traditional driver's cab control method, that is, a cab is set on the crane, and the operator must climb the stairs to the cab to operate. Although this operation method overcomes the operation risk caused by the operator being too close to the hoisted object and avoids the phenomenon of control cable being entangled with hooks and locks. However, this operation method has the defects that the operator cannot freely choose the operation line of sight, viewing angle, and distance due to the fixed position when working. Especially when the distance between the operator and the hoisting personnel is sometimes far, there is a serious problem of misoperation caused by unclear gestures, unclear words, and information transmission errors, which will cause a lot of safety hazards to the personnel. At the same time, when operating in a complex environment, sometimes the hoisting time is too long and the operator cannot leave the cab, which will cause fatigue driving, and personnel on the ground must be arranged to personally direct the hoisting, so the commander cannot avoid the toxic and harmful operating environment.
[0003] In view of the above problems, if a double-beam bridge crane remote control device is designed, it can not only solve the above problems in crane operation, but also greatly reduce the labor intensity of operators and improve the automation degree of the equipment electrical control system, while continuously improving equipment production efficiency and enterprise benefits. The following takes the zinc powder workshop double-beam bridge crane as an example to design a double-beam bridge crane remote control device. Utility Model Content
[0004] The technical problem to be solved by the utility model is to address the problem raised in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A remote control device for a double-beam bridge crane comprises a trolley operating mechanism 1, a trolley operating mechanism 2, a hook lifting mechanism 3, an electrical control cabinet 4, a receiver 5, a cab 6 and an overhead crane lighting lamp 7. The trolley operating mechanism 1 is provided with the trolley operating mechanism 2, the electrical control cabinet 4 and the overhead crane lighting lamp 7. The cab 6 is provided below the trolley operating mechanism 1, the trolley operating mechanism 2 is slidably connected to the top of the trolley operating mechanism 1, the top of the trolley operating mechanism 2 is provided with the hook lifting mechanism 3, the overhead crane lighting lamp 7 is provided on the bottom cross beam of the trolley operating mechanism 1, the electrical control cabinet 4 is provided on the vertical beam at one end of the trolley operating mechanism 1, and the receiver 5 is provided on the top of the cross beam of the trolley operating mechanism 1.
[0007] The motor of the trolley operating mechanism 1 is electrically connected to the trolley forward contactor KM1 and the trolley reverse contactor KM2, the motor of the trolley operating mechanism 2 is electrically connected to the trolley left movement contactor KM3 and the trolley right movement contactor KM4, the motor of the hook lifting mechanism 3 is electrically connected to the hook rising contactor KM5 and the hook lowering contactor KM6, and thermal relays are connected in front of the trolley operating mechanism 1, the trolley operating mechanism 2 and the hook lifting mechanism 3.
[0008] The motors of the trolley running mechanism 1, the small trolley running mechanism 2 and the hook lifting mechanism 3 are all connected in parallel in a circuit, a fuse and a circuit breaker are connected in the circuit, and a brake motor is connected in the circuit of the hook lifting mechanism 3.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] It greatly reduces the labor of operators and greatly improves the operating efficiency and overall safety factor of the equipment. In particular, the device allows operators to operate and hoist the equipment alone instead of collaborating with multiple people. The operator's sight, viewing angle and distance can be freely selected during the operation, and the control information can be accurately conveyed, thus eliminating various misoperations and safety hazards caused by fatigue driving and errors in verbal information transmission by the original operators. At the same time, it also solves the problems of the original ground hoisting and command personnel being unable to avoid toxic and harmful gas places during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.
[0012] Figure 2 It is a control circuit diagram of a remote control device according to an embodiment of the utility model.
[0013] Figure 3 It is an electrical schematic diagram of a remote control device according to an embodiment of the utility model.
[0014] Serial numbers and names of the accompanying drawings: trolley operating mechanism 1, car operating mechanism 2, hook lifting mechanism 3, electrical control cabinet 4, receiver 5, cab 6, overhead crane lighting 7. DETAILED DESCRIPTION
[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0016] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0017] Example 1
[0018] like Figure 1-3 As shown, a remote control device for a double-beam bridge crane described in the utility model comprises a trolley operating mechanism 1, a trolley operating mechanism 2, a hook lifting mechanism 3, an electrical control cabinet 4, a receiver 5, a cab 6 and an overhead crane lighting lamp 7. The trolley operating mechanism 1 is provided with the trolley operating mechanism 2, the electrical control cabinet 4 and the overhead crane lighting lamp 7. A cab 6 is provided below the trolley operating mechanism 1, the trolley operating mechanism 2 is slidably connected to the top of the trolley operating mechanism 1, the top of the trolley operating mechanism 2 is provided with the hook lifting mechanism 3, the overhead crane lighting lamp 7 is provided on the bottom cross beam of the trolley operating mechanism 1, the electrical control cabinet 4 is provided on the vertical beam at one end of the trolley operating mechanism 1, and the receiver 5 is provided on the top of the cross beam of the trolley operating mechanism 1.
[0019] The motor of the trolley operating mechanism 1 is electrically connected to the trolley forward contactor KM1 and the trolley reverse contactor KM2, the motor of the trolley operating mechanism 2 is electrically connected to the trolley left movement contactor KM3 and the trolley right movement contactor KM4, the motor of the hook lifting mechanism 3 is electrically connected to the hook rising contactor KM5 and the hook lowering contactor KM6, and thermal relays are connected in front of the trolley operating mechanism 1, the trolley operating mechanism 2 and the hook lifting mechanism 3.
[0020] The motors of the trolley running mechanism 1, the small trolley running mechanism 2 and the hook lifting mechanism 3 are all connected in parallel in a circuit, a fuse and a circuit breaker are connected in the circuit, and a brake motor is connected in the circuit of the hook lifting mechanism 3.
[0021] like Figure 1As shown, the control circuit is connected to 220V two-phase AC power supply U, N, and the output circuit of the newly designed remote control system device is manually connected to the control circuit of the original control system of the overhead crane. The connection circuit is divided into nine routes, of which the first route is connected to the input common terminal (COM) 39. The second route is connected to the main contactor 13 coil of the total start-stop circuit 40, and this circuit controls the "start and stop" of the overhead crane. The third route is connected to the contactor 21 coil of the trolley forward circuit 41 and is connected in series with the normally closed contact 28 of the contactor 22 and the trolley forward limit 34. This circuit controls the trolley to "advance". The fourth route is connected to the contactor 22 coil of the trolley backward circuit 42 and is connected in series with the normally closed contact 29 of the contactor 21 and the trolley backward limit 35. This circuit controls the trolley to "backward". The fifth route is connected to the contactor 23 coil of the trolley left shift circuit 43 and is connected in series with the normally closed contact 30 of the contactor 24 and the trolley left shift limit 36. This circuit controls the trolley to "move left". The sixth line is connected to the coil of contactor 24 of the trolley right movement circuit 44 and is connected in series with the normally closed contact 31 of contactor 23 and the trolley right movement limit 37. This circuit controls the trolley to "move right". The seventh line is connected to the coil of contactor 25 of the hook lifting circuit 45 and is connected in series with the normally closed contact 32 of contactor 26 and the hook rising limit 38. This circuit controls the hook to "rise". The eighth line is connected to the coil of contactor 26 of the hook lowering circuit 46 and is connected in series with the normally closed contact 33 of contactor 25. This circuit controls the hook to "fall". The ninth line is connected to the alarm (electric bell) 27. This circuit controls the "alarm" of the overhead crane failure.
[0022] Figure 2 Including 1-fuse, 2-circuit breaker, 3-trolley forward contactor KM1, 4-trolley reverse contactor KM2, 5-trolley left contactor KM3, 6-trolley right contactor KM4, 7-hook up contactor KM5, 8-hook down contactor KM6, 9-thermal relay 1, 10-thermal relay 2, 11-thermal relay 3, 12-thermal relay 4, 13-trolley motor 1, 14-trolley motor 2, 15-trolley motor, 16-hook lifting motor, 17-brake motor
[0023] like Figure 2As shown, the main circuit is connected to a 380V three-phase AC power supply U, V, W, and is divided into three routes. The first route is connected to the main circuits of AC contactors 3 and 4, and then connected to the trolley motors 13 and 14. The second route is connected to the main circuits of AC contactors 5 and 6, and then connected to the trolley motor 15. The third route is connected to the main circuits of AC contactors 7 and 8, and then connected to the lifting motor 16 and the brake motor 17. When the coil of contactor 3 is energized, because contactor 3 is interlocked with contactor 4, that is, the coil of contactor 4 is immediately de-energized, and the trolley motors 13 and 14 move forward. When the coil of contactor 4 is energized, because contactor 3 is interlocked with contactor 4, that is, the coil of contactor 3 is immediately de-energized, and the trolley motors 13 and 14 move backward. When the coil of contactor 5 is energized, because contactor 5 is interlocked with contactor 6, that is, the coil of contactor 6 is immediately de-energized, and the trolley motor 15 moves left. When the coil of contactor 6 is energized, because contactor 5 is interlocked with contactor 6, that is, the coil of contactor 5 is immediately de-energized, and the trolley motor 15 moves to the right. When the coil of contactor 7 is energized, because contactor 7 is interlocked with contactor 8, that is, the coil of contactor 8 is immediately de-energized, and the hook lifting motor 16 rises. When the coil of contactor 8 is energized, because contactor 7 is interlocked with contactor 8, that is, the coil of contactor 7 is immediately de-energized, and the hook lifting motor 16 descends. In particular, when the hook lifting mechanism stops running, the brake motor 17 will immediately lose power, and the brake system will immediately lock the main shaft of the lifting motor to prevent the hook from falling freely due to gravity.
[0024] Figure 31-the manual wiring part of the designer (indicated by the thick line in the figure, used to connect the remote control system line with the original equipment control system line), 2-the receiver main relay, 3~9-the receiver internal output relay, 10-the start button SB1, 11-the main contactor KM normally open point, 12-the stop button SB2, 13-the main contactor KM coil, 14-the trolley forward button SB3, 15-the trolley reverse button SB4, 16-the trolley left button SB5, 17-the trolley right button SB6, 18-the hook up button SB7, 19-the hook down button SB8, 20-the crane alarm (electric bell) button SB9, 21-the trolley forward contactor KM1 coil, 22-the trolley reverse contactor KM2 coil, 23-the trolley left contactor KM3 coil, 24-the trolley right contactor KM4 coil, 25-the hook up contactor KM5 coil, 26-the hook down contactor KM6 coil, 2 7-alarm (electric bell), 28-truck reverse contactor KM2 normally closed point, 29-truck forward contactor KM1 normally closed point, 30-trolley right shift contactor KM4 normally closed point, 31-trolley left shift contactor KM3 normally closed point, 32-hook lowering contactor KM6 normally closed point, 33-hook rising contactor KM5 normally closed point, 34-truck forward limit SQ1, 35-truck reverse limit SQ2, 36-trolley left shift limit SQ3, 37-trolley Car right shift limit SQ4, 38-hook up limit (weight limiter) SQ5, 39-input common terminal (COM), 40-general start and stop circuit, 41-trolley forward circuit, 42-trolley backward circuit, 43-trolley left shift circuit, 44-trolley right shift circuit, 45-hook up circuit, 46-hook down circuit, 47-fault alarm circuit, 48-newly designed remote control system device wiring circuit, 49-original equipment control system wiring circuit.
[0025] like Figure 3As shown, the control circuit is connected to 220V two-phase AC power supply U, N, and the output circuit of the newly designed remote control system device is manually connected to the control circuit of the original control system of the overhead crane. The connection circuit is divided into nine routes, of which the first route is connected to the input common terminal (COM) 39. The second route is connected to the main contactor 13 coil of the total start-stop circuit 40, and this circuit controls the "start and stop" of the overhead crane. The third route is connected to the contactor 21 coil of the trolley forward circuit 41 and is connected in series with the normally closed contact 28 of the contactor 22 and the trolley forward limit 34. This circuit controls the trolley to "advance". The fourth route is connected to the contactor 22 coil of the trolley backward circuit 42 and is connected in series with the normally closed contact 29 of the contactor 21 and the trolley backward limit 35. This circuit controls the trolley to "backward". The fifth route is connected to the contactor 23 coil of the trolley left shift circuit 43 and is connected in series with the normally closed contact 30 of the contactor 24 and the trolley left shift limit 36. This circuit controls the trolley to "move left". The sixth line is connected to the coil of contactor 24 of the trolley right movement circuit 44 and is connected in series with the normally closed contact 31 of contactor 23 and the trolley right movement limit 37. This circuit controls the trolley to "move right". The seventh line is connected to the coil of contactor 25 of the hook lifting circuit 45 and is connected in series with the normally closed contact 32 of contactor 26 and the hook rising limit 38. This circuit controls the hook to "rise". The eighth line is connected to the coil of contactor 26 of the hook lowering circuit 46 and is connected in series with the normally closed contact 33 of contactor 25. This circuit controls the hook to "fall". The ninth line is connected to the alarm (electric bell) 27. This circuit controls the "alarm" of the overhead crane failure.
[0026] A remote control device for a double-beam bridge crane, wherein the lifting equipment modified by the device is: a bridge-type double-beam overhead crane (10T), specifically including: a trolley running mechanism, a car running mechanism, a hook lifting mechanism, and a brake system mechanism.
[0027] The electrical part of the device includes: 1 set of remote control (power supply: DC 3V, 2 No. 5 alkaline batteries), 1 set of receiver (power supply: AC 220V), 7 sets of AC contactors, 4 sets of limit switches, 1 set of heavy hammer limiter, 1 alarm, 2 trolley motors (power: 7.5KW), 1 trolley motor (power: 11KW), 1 hook lifting motor (power: 18KW), 1 brake motor (power: 0.4KW), and a control cable of about 1 meter.
[0028] The remote control settings include external settings and internal settings. The external settings include upper settings and lower settings.
[0029] The top of the remote controller is equipped with an operation panel, which is equipped with an emergency stop button, a start button, a stop button, and an alarm indicator light. In addition, there are six action buttons, namely "forward", "backward", "left", "right", "up", and "down", which specifically control the crane's trolley to move forward, the trolley to move backward, the trolley to move left, the trolley to move right, the hook to rise, and the hook to fall.
[0030] The lower part of the remote control is equipped with a telescopic handle, a boom handle, a lifting handle and a slewing handle. This design is mainly for the operator to operate the remote control directly with his hands when in use.
[0031] The internal configuration of the remote control mainly includes power input circuit, keyboard input circuit, electronic circuit, oscillating circuit, output circuit, wireless transmitting module and wireless receiving module, etc. The wireless transmitting module inside the remote control sends the signal to the wireless receiving module, and the wireless receiving module receives the signal and transmits it to the receiver.
[0032] The receiver is used to receive the commands sent by the remote control in real time and various command signals sent by the wireless transmission module, analyze and process the received command signals, and send the results to each control electrical appliance to control the operation of the trolley motor, car motor, and lifting motor.
[0033] Limit switches are used to collect and limit the travel of the trolley and carriage operating mechanisms, and control and protect the trolley and carriage motors by changing the open and closed states of the switch contacts.
[0034] The weight limiter is used to receive the command of the remote control, and to limit the maximum lifting height of the lifting mechanism of the overhead crane hook and to provide full protection for the lifting motor.
[0035] The motor is used to execute the command results transmitted by the receiver to each control electrical appliance and execute the forward, backward, left, right, upward and downward actions of each operating mechanism of the overhead crane.
[0036] Through the design of the above technical solution, the core part of its technical transformation is to use the remote control, the core component of the device, in which the remote control is operated by the operator and transmits various command signals, and then the receiver analyzes and processes the received various command signals, and finally sends the results to various control electrical components in a timely manner. The control electrical components drive various motors to operate according to the command results to perform various actions that the operator wants to operate. The signal emitted by the remote control is transmitted through radio waves. The characteristic of radio wave transmission is that the wavelength is long. Whether it is an open environment or a closed environment, as long as there is a little gap, it can bypass obstacles, that is, obstacles have no effect on its transmission, thus ensuring the stability of signal transmission.
[0037] Through the operation effect of the above-designed technical solution after the transformation, it can be seen that after the transformation, the remote control device completely realizes the wireless operation of the crane, greatly reducing the labor of the operator, and greatly improving the equipment operation efficiency and overall safety factor. In particular, the device allows the operation and hoisting personnel to be completed by one person alone instead of the original collaboration of multiple people. The operator's line of sight, perspective and distance during the operation can be freely selected, and the control information can be accurately conveyed, thus eliminating various misoperations and safety hazards caused by fatigue driving and errors in verbal information transmission of the original operator. At the same time, it also solves the problems of the original ground hoisting and command personnel being unable to avoid toxic and harmful gas places during operation.
[0038] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the embodiments above is only applicable to help understand the principles of the embodiments of the present invention.
Claims
1. A remote control device for a double-beam bridge crane, comprising a trolley operating mechanism (1), a trolley operating mechanism (2), a hook lifting mechanism (3), an electrical control cabinet (4), a receiver (5), a cab (6) and an overhead crane lighting lamp (7), characterized in that: The trolley operating mechanism (1) is provided with a trolley operating mechanism (2), an electrical control cabinet (4) and an overhead crane lighting lamp (7); a cab (6) is provided below the trolley operating mechanism (1); the trolley operating mechanism (2) is slidably connected to the top of the trolley operating mechanism (1); a hook lifting mechanism (3) is provided on the top of the trolley operating mechanism (2); the overhead crane lighting lamp (7) is provided on the bottom cross beam of the trolley operating mechanism (1); the electrical control cabinet (4) is provided on the vertical beam at one end of the trolley operating mechanism (1); and the receiver (5) is provided on the top of the cross beam of the trolley operating mechanism (1).
2. A double-beam bridge crane remote control device according to claim 1, characterized in that: The motor of the trolley operating mechanism (1) is electrically connected to the trolley forward contactor KM1 and the trolley reverse contactor KM2, the motor of the trolley operating mechanism (2) is electrically connected to the trolley left movement contactor KM3 and the trolley right movement contactor KM4, the motor of the hook lifting mechanism (3) is electrically connected to the hook rising contactor KM5 and the hook lowering contactor KM6, and thermal relays are connected in front of the trolley operating mechanism (1), the trolley operating mechanism (2) and the hook lifting mechanism (3).
3. A double-beam bridge crane remote control device according to claim 2, characterized in that: The motors of the trolley running mechanism (1), the trolley running mechanism (2) and the hook lifting mechanism (3) are all connected in parallel in a circuit, a fuse and a circuit breaker are connected in the circuit, and a brake motor is connected in the circuit of the hook lifting mechanism (3).