Double-control single-beam crane control device

Abstract

The utility model discloses a double-control single-beam crane control device, which relates to the automatic control technology and comprises a manual remote controller, three function button groups are arranged on the manual remote controller, two buttons are arranged in each function button group, each button is electrically connected with a contactor coil, a mounting box is mounted on the back surface of the manual remote controller, and the contactor coil is electrically connected with the mounting box. A wireless receiver and relays of which the number is consistent with that of the buttons are mounted in the mounting box; the wireless receiver is wirelessly connected with a wireless remote controller, a plurality of output terminals of the wireless receiver are connected with a plurality of relay coils in a one-to-one correspondence manner, and a normally open contact of the nth relay is electrically connected to the nth button; and in each function button group, the normally closed contact of the nth relay is electrically connected to the (n + 1) th button, and the normally closed contact of the (n + 1) th relay is electrically connected to the nth button. According to the utility model, the problem that a worker can only control the single-beam crane at a short distance is solved, the personal and equipment safety is reduced to the greatest extent, and the production stability is facilitated.

Description

Technical Field

[0001] The utility model relates to automatic control technology, and more specifically to a double-controlled single-beam crane control device. Background Art

[0002] The traditional single-beam crane control system consists of a handle-type button control system with a long control cable. It can still meet the lifting requirements in large and open production sites, but in complex and narrow environments, only the handle-type control method cannot fully meet the site requirements. Due to the limited length of the cable of the single-beam crane remote control handle, the operator must move with the movement of the single-beam crane during the use of the single-beam crane. Especially in a small space, the operator's line of sight is blocked and cannot accurately judge the lifting situation. In addition, when lifting large objects, the operator cannot maintain a sufficient safe distance from the lifting object because the cable of the single-beam crane operating handle is not long enough, which poses a great safety hazard. Therefore, in order to better remotely control the single-beam crane and enable the operator to have a sufficient safe distance to ensure the safety of personnel and equipment, it is necessary for us to study a dual-control single-beam crane control device to solve this problem. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a dual-controllable single-beam crane control device in view of the deficiencies in the prior art, thereby solving the problem that the staff can only control the single-beam crane at a close distance.

[0004] A dual-controllable single-beam crane control device described in the utility model includes a manual remote controller, three function button groups are provided on the manual remote controller, two buttons are provided in each function button group, each button is electrically connected to a contactor coil, an installation box is installed on the back of the manual remote controller, a wireless receiver and relays whose number is the same as the number of buttons are installed in the installation box; the wireless receiver is wirelessly connected to the wireless remote controller, a plurality of output terminals of the wireless receiver are connected to a plurality of relay coils in a one-to-one correspondence, and the normally open contact of the nth relay is electrically connected to the nth button; in each of the function button groups, the normally closed contact of the nth relay is electrically connected to the n+1th button, and the normally closed contact of the n+1th relay is electrically connected to the nth button.

[0005] As a further improvement, a connection block is fixedly provided on the back of the manual remote control, a slot is provided in the connection block, and an L-shaped plug-in block is fixedly provided on the back of the wireless remote control, and the L-shaped plug-in block is plugged into the slot.

[0006] Furthermore, a proximity switch 1 is installed at the bottom of the slot, an indicator light 1 is installed above the manual remote control, one end of the proximity switch 1 is connected to a power supply 1, the other end of the proximity switch 1 is connected to one end of the indicator light 1, and the other end of the indicator light 1 is connected to a power supply 1.

[0007] Furthermore, a proximity switch 2 is installed at the bottom of the L-shaped plug, an indicator light 2 is installed above the wireless remote control, one end of the proximity switch 2 is connected to a power supply 2, the other end of the proximity switch 2 is connected to one end of the indicator light 2, and the other end of the indicator light 2 is connected to a power supply 2.

[0008] Beneficial Effects

[0009] The advantages of the utility model are: through the setting of the wireless remote control, the wireless receiver and the relay, the wireless remote control and the manual remote control are interconnected, and the control of the single-beam crane can be manually controlled or remotely wirelessly controlled, thus realizing the dual control of the single-beam crane. The wireless control solves the problem that the staff can only control the single-beam crane at a close distance, minimizes the personal and equipment safety, and is conducive to the stability of production. In addition, the normally closed contacts of the two relays in each function button group are cross-connected, so that an anti-false triggering protection mechanism is formed in the function button group, avoiding the problem of manually triggering the manual remote control by mistake while using the wireless operation of the single-beam crane, and greatly improving the safety of the single-beam crane control. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the circuit structure of the single-beam crane control device of the utility model;

[0011] Figure 2 It is a schematic diagram of the internal structure of the single-beam crane control device of the utility model. DETAILED DESCRIPTION

[0012] The utility model is further described below in conjunction with the embodiments, but does not constitute any limitation to the utility model. Any limited modifications made by anyone within the scope of the claims of the utility model are still within the scope of the claims of the utility model.

[0013] See also Figure 1-Figure 2The utility model is a dual-controllable single-beam crane control device, comprising a manual remote controller 1, on which three function button groups are arranged, corresponding to the three functions of the hook lifting and lowering of the single-beam crane and the forward, backward, left and right movement of the single-beam crane. Each function button group is provided with two buttons, corresponding to the six actions of lifting, lowering, forward, backward, left and right. Among them, the six actions of lifting, lowering, forward, backward, left and right correspond to the first button SB1, the second button SB2, the third button SB3, the fourth button SB4, the fifth button SB5, and the sixth button SB6 respectively. Each button is electrically connected to a contactor coil, such as Figure 1 In KM1 to KM6, the contactors are connected to the corresponding motors, and the six actions of the single beam crane, namely, lifting, lowering, forward, backward, left and right, are realized by controlling the contactors. The contactors are installed in the control box. The above are the original control structures of the existing single beam crane, and the utility model does not improve them.

[0014] The back of the manual remote controller 1 is provided with an installation box 7, in which a wireless receiver and relays having the same number as the number of buttons are installed. The wireless receiver is wirelessly connected to the wireless remote controller 4. The wireless receiver and the wireless remote controller 4 are implemented by products based on WIFI, zigbee or infrared technology currently available on the market, and technicians in this field can make reasonable choices. The multiple output terminals of the wireless receiver are respectively connected to the multiple relay coils one by one through the relay control circuit, thereby realizing the control of the controller.

[0015] In the present utility model, the normally open contact of the nth relay is electrically connected to the nth button. In each function button group, the normally closed contact of the nth relay is electrically connected to the n+1th button, and the normally closed contact of the n+1th relay is electrically connected to the nth button. Taking the lifting function button group as an example, one end of the first button SB1 is connected to the neutral line through the first contactor coil KM1, and the other end of the first button SB1 is connected to the live line through the second relay normally closed contact KT2-2; one end of the second button SB2 is connected to the neutral line through the second contactor coil KM2, and the other end of the second button SB2 is connected to the live line through the first relay normally closed contact KT1-2. In this way, when the wireless remote control 4 is operated to activate the first relay, the normally open contact KT1-1 of the first relay is closed, and the normally closed contact KT1-2 of the first relay is disconnected, so that the first contactor coil KM1 is activated, and the hook of the single-beam crane rises. In this process, due to the disconnection of the normally closed contact KT1-2 of the first relay, even if the second button SB2 is pressed, the second contactor coil KM2 will not be energized, thereby forming an anti-false triggering protection mechanism, avoiding the problem of manually triggering the manual remote control 1 while using the wireless operation of the single-beam crane.

[0016] Since the operation site is large, in order to prevent the manual remote control 1 from being placed randomly and difficult to find, a connection block 2 is fixedly provided on the back of the manual remote control 1 of the utility model, a slot is provided in the connection block 2, and an L-shaped plug block 3 is fixedly provided on the back of the wireless remote control 4, and the L-shaped plug block 3 is plugged into the slot. After use, the L-shaped plug block 3 is inserted into the slot, so that the wireless remote control 4 is installed on the back of the manual remote control 1, which is convenient for the next use.

[0017] In the utility model, a proximity switch 15 is installed at the bottom of the slot, an indicator light 19 is installed above the manual remote control 1, one end of the proximity switch 15 is connected to a power supply 1, the other end of the proximity switch 15 is connected to one end of the indicator light 19, and the other end of the indicator light 19 is connected to a power supply 1. In addition, a proximity switch 26 is installed at the bottom of the L-shaped plug 3, an indicator light 28 is installed above the wireless remote control 4, one end of the proximity switch 26 is connected to a power supply 2, the other end of the proximity switch 26 is connected to one end of the indicator light 28, and the other end of the indicator light 28 is connected to a power supply 2. Among them, both proximity switches are of normally closed type, that is, when the sensing part of the proximity switch is not blocked, the proximity switch is closed. The power supply can be a power adapter or a battery.

[0018] When the wireless remote controller 4 is installed on the back of the manual remote controller 1, the two proximity switches are in close contact with each other, so that both are in the disconnected state and the indicator light is not powered. When the wireless remote controller 4 is taken out, the sensing ends of the two proximity switches are not blocked, and both are reset and turned on, so that the indicator light is powered and lit, which serves to remind the staff and effectively reduces the risk of misplacing the wireless remote controller 4.

[0019] The working principle of the utility model is: when the single-beam crane needs to be controlled, if it is manually controlled, just press the corresponding button directly. If wireless control is required, first remove the wireless remote controller 4, and the indicator lights on the wireless remote controller 4 and the manual remote controller 1 are all on. Then press the corresponding button on the wireless remote controller 4, and when the wireless receiver receives the wireless signal, it outputs an electrical signal to the corresponding relay according to the signal to trigger it. For example, the first relay is triggered, and the live wire forms a loop through the normally closed contact KT2-2 of the second relay, the normally open contact KT1-1 of the first relay, the first contactor coil KM1 and the neutral wire, so that the first contactor coil KM1 is energized and actuated, and the hook of the single-beam crane performs a lifting action.

[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A dual-controllable single-beam crane control device, comprising a manual remote controller, wherein the manual remote controller is provided with three function button groups, each function button group is provided with two buttons, each of the buttons is electrically connected to a contactor coil, It is characterized in that An installation box is installed on the back of the manual remote control, and a wireless receiver and relays whose number is the same as the number of buttons are installed in the installation box; the wireless receiver is wirelessly connected to the wireless remote control, and multiple output terminals of the wireless receiver are connected to multiple relay coils in a one-to-one correspondence, and the normally open contact of the nth relay is electrically connected to the nth button; in each of the function button groups, the normally closed contact of the nth relay is electrically connected to the n+1th button, and the normally closed contact of the n+1th relay is electrically connected to the nth button.

2. A dual-controllable single-beam crane control device according to claim 1, It is characterized in that A connecting block is fixedly provided on the back of the manual remote controller, a slot is provided in the connecting block, and an L-shaped plug-in block is fixedly provided on the back of the wireless remote controller, and the L-shaped plug-in block is plugged into the slot.

3. A dual-controllable single-beam crane control device according to claim 2, It is characterized in that A proximity switch 1 is installed at the bottom of the slot, an indicator light 1 is installed above the manual remote control, one end of the proximity switch 1 is connected to a power supply 1, the other end of the proximity switch 1 is connected to one end of the indicator light 1, and the other end of the indicator light 1 is connected to a power supply 1.

4. A dual-controllable single beam crane control device according to claim 2, It is characterized in that A proximity switch 2 is installed at the bottom of the L-shaped plug block, an indicator light 2 is installed above the wireless remote control, one end of the proximity switch 2 is connected to a power supply 2, the other end of the proximity switch 2 is connected to one end of the indicator light 2, and the other end of the indicator light 2 is connected to the power supply 2.

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