Traveling system

By designing safety devices including leakage protectors, relays and emergency stop components in the driving system, the problem of safety accidents that are prone to occur during operation of the driving system is solved, and emergency braking is achieved in the event of a failure, ensuring the safety of equipment and personnel.

CN120157029APending Publication Date: 2025-06-17GOERTEK INC
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Patent Information

Application Number
CN202510386169.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-06-17

AI Technical Summary

Technical Problem

Existing driving systems are prone to safety accidents during operation, including heavy objects falling off, line failures leading to control difficulties and inaccurate areas caused by inconspicuous operation status of the equipment.

Method used

A driving system including a support device, a moving device and a safety device is designed. The safety device consists of a leakage protector, a relay, a transformer and an emergency stop assembly. The electrical control of the mobile device is realized through the circuit connection of the leakage protector and the relay, and the emergency stop assembly is quickly powered off in case of a fault to brake urgently.

Benefits of technology

It effectively avoids damage to personnel in the event of failure of the driving system, ensures the safe operation of the equipment, and achieves the convenience and reliability of operation through simple circuit structure and low-cost design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The travelling crane system comprises a supporting device, a moving device and a safety device, the safety device comprises a leakage protector, a first relay, a second relay, a first transformer and an emergency stop assembly, the first relay is electrically connected with the moving device, and a normally open contact of the second relay is connected with a coil of the first relay in series and then connected with the first transformer. The primary side of the first transformer is connected in parallel; the emergency stop assembly comprises an emergency stop relay and an emergency stop switch. During use, the leakage protector is turned on, the moving device and the safety device are powered on to operate, the moving device hooks an object to move within a limited range, and the emergency stop switch is pressed when a fault occurs, so that the moving device is powered off and stopped, and other irrelevant personnel are prevented from entering a driving area by mistake to be injured; the safety device has the advantages of being simple in circuit structure, convenient to operate and low in cost.
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Description

Technical Field

[0001] The present invention relates to the technical field of special equipment, and particularly to a traveling crane system. Background Art

[0002] A traveling crane is a device that can carry large heavy objects for movement, but it is extremely prone to safety accidents, and such injuries are often irreversible and fatal. Common traveling crane accidents include, but are not limited to: when an operator operates the traveling crane below the crane, the heavy object falls off and injures people; the traveling crane line fails, resulting in the operator being unable to control the running trajectory of the traveling crane in real time and unable to brake emergently to injure people; there is no obvious equipment operation indication status, resulting in other irrelevant personnel entering the traveling crane area by mistake and getting injured. Summary of the Invention

[0003] In view of the above deficiencies, the technical problem to be solved by the present invention is: to provide a traveling crane system, which can hook an object through a moving device and move it within a limited range, and can brake emergently when a safety accident occurs through a safety device.

[0004] To solve the above technical problem, the technical solution of the present invention is:

[0005] A traveling crane system includes a support device and a moving device installed on the support device, and further includes a safety device. The safety device includes a leakage protector, a first relay, a second relay, a first transformer, and at least one set of emergency stop components; one end of the leakage protector is electrically connected to a power supply, and the other end of the leakage protector is respectively electrically connected to the primary side of the first transformer and one end of the normally open contact of the first relay. The other end of the normally open contact of the first relay is electrically connected to the moving device; after the normally open contact of the second relay and the coil of the first relay are connected in series, they are connected in parallel with the primary side of the first transformer, and the secondary side of the first transformer outputs a working voltage; each set of the emergency stop components includes an emergency stop relay and an emergency stop switch. The emergency stop switch includes an emergency stop normally open contact and an emergency stop normally closed contact; the emergency stop normally closed contacts of all the emergency stop switches are connected in series with the coil of the second relay, and then connected in parallel with the secondary side of the first transformer; the emergency stop normally open contacts of each set of the emergency stop components are connected in series with the coil of the emergency stop relay, and then connected in parallel with the secondary side of the first transformer.

[0006] Preferably, the safety device further includes a second transformer. The primary side of the second transformer is externally connected to a power supply, and the secondary side of the second transformer outputs a working voltage; each set of the emergency stop components further includes a warning light. The warning light includes a red light and a green light; the green light of each set of the emergency stop components is connected in series with the normally closed contact of the emergency stop relay, and then connected in parallel with the secondary side of the second transformer; the red light of each set of the emergency stop components is connected in series with the normally open contact of the emergency stop relay, and then connected in parallel with the secondary side of the second transformer.

[0007] Preferably, the mobile device includes a horizontal moving mechanism and a lifting mechanism. The horizontal moving mechanism is installed on the supporting device, and the lifting mechanism is installed on the horizontal moving mechanism. The horizontal moving mechanism includes two spaced rails, and each rail is provided with a first traveling wheel. An adaptation slot is provided on the first traveling wheel, and the assembly position of the adaptation slot is adapted to that of the rail.

[0008] Preferably, the horizontal moving mechanism includes a load-bearing beam disposed between the two rails. Load-bearing arms are respectively fixed at both ends of the load-bearing beam. A first wheel support is fixed at the bottom end of the load-bearing arm, and the first wheel support is rotatably connected to the corresponding first traveling wheel. The horizontal moving mechanism further includes a moving power component for driving the first traveling wheel to rotate on the rail. The moving power component is electrically connected to the normally open contact of the first relay. The lifting mechanism includes a load-bearing wheel rotatably disposed on the load-bearing beam, a lifting motor drivingly connected to the load-bearing wheel, a load-bearing chain wound around the load-bearing wheel, and a load-bearing hook disposed at the end of the load-bearing chain. The lifting motor is electrically connected to the normally open contact of the first relay, and the lifting motor is used to drive the load-bearing wheel to rotate.

[0009] Preferably, the horizontal moving mechanism includes a moving power component provided in one-to-one correspondence with the first traveling wheel. The moving power assembly includes a second wheel support fixed on the load-bearing arm, a second traveling wheel rotatably disposed on the second wheel support, and a traveling motor drivingly connected to the second traveling wheel. The second traveling wheel and the first traveling wheel are arranged front and back on the rail. The traveling motor is used to drive the second traveling wheel to rotate, and the traveling motor is electrically connected to the normally open contact of the first relay.

[0010] Preferably, the adaptation slot is an inverted V-shaped slot.

[0011] Preferably, the supporting device includes a plurality of vertically arranged brackets, and each bracket is provided with the emergency stop assembly.

[0012] Preferably, each bracket includes a horizontal plate and two vertical plates. The two vertical plates are respectively arranged on both sides of the horizontal plate, and both the horizontal plate and the vertical plates are made of plates with uniform thickness.

[0013] Preferably, the supporting device further includes two spaced cross beams. Each cross beam is installed at the top end of the bracket, and a rail is installed on the top surface of each cross beam.

[0014] Preferably, each of the cross beams is in the shape of an I-beam; a plurality of reinforcing ribs are respectively arranged on both sides of each of the cross beams; and / or; all the reinforcing ribs on each side of the cross beam are divided into two rows and arranged oppositely up and down.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0016] Since the traveling system of the present invention includes a supporting device, a moving device and a safety device, the safety device includes a leakage protector, a first relay, a second relay, a first transformer and at least one set of emergency stop components; the leakage protector is electrically connected to the power supply, the first transformer and the first relay respectively, and the first relay is electrically connected to the moving device; after the normally open contact of the second relay and the coil of the first relay are connected in series, they are connected in parallel with the primary side of the first transformer, and the secondary side of the first transformer outputs a working voltage; each set of emergency stop components includes an emergency stop relay and an emergency stop switch, and each set of emergency stop switches is electrically connected to the second relay and the first transformer respectively. During actual use, after the leakage protector is turned on, the moving device and the safety device are powered on and operate. The moving device can hook up an object and move within a limited range. When a fault occurs, the emergency stop switch can be conveniently and quickly pressed to cut off the power supply of the moving device and stop it, thereby avoiding other irrelevant personnel from entering the traveling area and getting injured; moreover, the safety device of the present invention has the advantages of simple circuit structure, convenient operation and low cost. Description of the Drawings

[0017] Figures 1 to 3 is a schematic structural diagram of the traveling system in the present invention;

[0018] Figure 4 is a schematic structural diagram when one side load-bearing arm in the present invention is removed;

[0019] Figure 5 is Figure 4 a partial enlarged schematic diagram of part A in

[0020] Figure 6 is a front view of the traveling system in the present invention;

[0021] Figure 7 is a circuit diagram of the safety device in the present invention;

[0022] In the figure: 1 - support device, 11 - bracket, 110 - cross plate, 111 - vertical plate, 12 - cross beam, 13 - reinforcing rib, 2 - moving device, 20 - load-bearing hook, 21 - guide rail, 220 - first walking wheel, 2200 - mating groove, 221 - second walking wheel, 230 - first wheel bracket, 231 - second wheel bracket, 24 - walking motor, 25 - load-bearing arm, 26 - load-bearing beam, 27 - lifting motor, 28 - load-bearing wheel, 29 - load-bearing chain, 3 - safety device, 31 - warning light, 310 - green light, 311 - red light, 32 - emergency stop switch, 33 - power supply, 35 - emergency stop relay, KM - first relay, KO - second relay, T1 - first transformer, T2 - second transformer. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0025] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] As Figures 1 to 7 As commonly shown, a traveling system includes a support device 1 and a moving device 2 installed on the support device 1, and also includes a safety device 3.

[0027] The safety device 3 includes a leakage protector, a first relay KM, a second relay KO, a first transformer T1 and at least one set of emergency stop components; one end of the leakage protector is electrically connected to the power supply 33, and the other end of the leakage protector is electrically connected to the primary side of the first transformer T1 and one end of the normally open contact KM1 of the first relay respectively, and the other end of the normally open contact KM1 of the first relay is electrically connected to the mobile device 2; the normally open contact KO1 of the second relay and the first relay coil KM0 are connected in series and then connected in parallel with the primary side of the first transformer T1, and the secondary side of the first transformer T1 outputs the working voltage.

[0028] Each group of emergency stop components includes an emergency stop relay 35 and an emergency stop switch 32, and the emergency stop switch 32 includes an emergency stop normally open contact and an emergency stop normally closed contact; the emergency stop normally closed contacts of all emergency stop switches 32 are connected in series with the second relay coil KO0, and then connected in parallel with the secondary side of the first transformer T1; the emergency stop normally open contacts of each group of emergency stop components are connected in series with the emergency stop relay coil, and then connected in parallel with the secondary side of the first transformer T1.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the support device 1 includes a bracket 11, a crossbeam 12 and a reinforcing rib 13, wherein the bracket 11 includes a cross plate 110 and two vertical plates 111. In a preferred embodiment, the cross plate 110 and the vertical plates 111 are both plates of uniform thickness, the crossbeam 12 is in an I-shaped shape, and a plurality of reinforcing ribs 13 are respectively arranged on both sides of the crossbeam 12, each reinforcing rib 13 is in a triangular shape, each reinforcing rib 13 is connected to the top and side of the crossbeam 12, or, each reinforcing rib 13 is connected to the bottom and side of the crossbeam 12; in a preferred embodiment, all the reinforcing ribs 13 on each side of the crossbeam 12 are divided into two rows, upper and lower, and each row of reinforcing ribs 13 is evenly arranged. The structure of the two rows of reinforcing ribs 13 arranged relatively up and down makes the upper and lower reinforcing ribs 13 abut against each other, further enhancing the structural strength. In this embodiment, the support device 1 includes but is not limited to four brackets 11 and two crossbeams 12, the four brackets 11 are arranged in four directions, the two crossbeams 12 are arranged at the top of the four brackets 11, and the two crossbeams 12 are arranged in parallel.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the moving device 2 includes a horizontal moving mechanism and a lifting mechanism. The horizontal moving mechanism is installed on the supporting device 1, and the lifting mechanism is installed on the horizontal moving mechanism.

[0031] The horizontal movement mechanism includes two guide rails 21 arranged at intervals, and the two guide rails 21 are respectively arranged on the top surfaces of the two cross beams 12; each guide rail 21 is provided with a first running wheel 220, and the first running wheel 220 is provided with an adapting groove 2200, and the adapting groove 2200 is adapted to the assembly position of the guide rail 21; in a preferred embodiment, the adapting groove 2200 is an inverted V-shaped groove, and the corresponding assembly position cross section is an inverted V-shaped, see Figure 4 and Figure 5 When moving, the two surfaces of the inverted V-shaped groove of the first walking wheel 220 contact the two surfaces of the guide rail 21, thereby ensuring the reliability of movement. In addition, the adapting groove 2200 is not limited to the structure listed above, and can also be a T-shaped groove, and the cross section of the guide rail 21 is T-shaped.

[0032] The horizontal moving mechanism also includes a load-bearing beam 26 arranged between the two guide rails 21, and load-bearing arms 25 are respectively fixed at both ends of the load-bearing beam 26. The bottom end of the load-bearing arm 25 is fixed with a first wheel bracket 230, and the first wheel bracket 230 is rotatably connected to the corresponding first running wheel 220; at the same time, the horizontal moving mechanism also includes a moving power component, which is used to drive the first running wheel 220 to rotate on the guide rail 21, and the moving power component is electrically connected to the normally open contact KM1 of the first relay.

[0033] Specifically, the horizontal moving mechanism includes a moving power component arranged one-to-one with the first walking wheel 220; the moving power component includes a second wheel bracket 231 fixed on the load-bearing arm 25, a second walking wheel 221 rotatably arranged on the second wheel bracket 231, and a walking motor 24 transmission-connected to the second walking wheel 221, the second walking wheel 221 and the first walking wheel 220 are arranged on the guide rail 21 front and back, the walking motor 24 is used to drive the second walking wheel 221 to rotate, and the walking motor 24 is electrically connected to the normally open contact KM1 of the first relay.

[0034] In a preferred solution, the second travel wheel 221 has the same structure as the first travel wheel 220, which further ensures the reliability of movement. After the travel motors 24 at both ends of the load-bearing beam 26 are started, they drive the corresponding second travel wheels 221 to rotate on the guide rail 21, and then drive the first travel wheels 220 arranged in front and behind to rotate, and finally realize the horizontal movement of the load-bearing beam 26, so that the lifting mechanism hooks the object and moves horizontally within the moving range.

[0035] The lifting mechanism includes a load-bearing wheel 28 rotatably arranged on the load-bearing beam 26, a lifting motor 27 drivingly connected to the load-bearing wheel 28, a load-bearing chain 29 wound around the load-bearing wheel 28, and a load-bearing hook 20 arranged at the end of the load-bearing chain 29. The lifting motor 27 is electrically connected to the normally open contact KM1 of the first relay. The lifting motor 27 is used to drive the load-bearing wheel 28 to rotate. When the lifting motor 27 is started, it drives the load-bearing wheel 28 to rotate, and the load-bearing wheel 28 winds or releases the load-bearing chain 29, so that the load-bearing hook 20 at the end of the load-bearing chain 29 is lifted or lowered to hook or lower an object.

[0036] As Figure 7 shown, in this embodiment, the safety device 3 further includes a second transformer T2. The primary side of the second transformer T2 is externally connected to a power source, and the secondary side of the second transformer T2 outputs a working voltage. Each emergency stop component further includes a warning light 31. The warning light 31 includes a red light 311 and a green light 310. After the green light 310 of each emergency stop component is connected in series with the normally closed contact of the emergency stop relay, it is then connected in parallel with the secondary side of the second transformer T2. The red light 311 of each emergency stop component is connected in series with the normally open contact of the emergency stop relay and then connected in parallel with the secondary side of the second transformer T2. The emergency stop components are arranged one-to-one with the brackets 11. For details, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 . The emergency stop components are installed on the vertical plate 111 of the bracket 11 for convenient operation of the emergency stop switch 32.

[0037] As Figure 7 shown, the specific connection relationship of the safety device 3 in this embodiment is as follows:

[0038] One end of the residual current device RCD is electrically connected to the power source 33. The other end of the residual current device RCD is respectively electrically connected to the primary side of the first transformer T1 and one end of the normally open contact KM1 of the first relay. The other end of the normally open contact KM1 of the first relay is electrically connected to the mobile device, specifically, it can be electrically connected to the power sources of the traveling motor 24 and the lifting motor 27. See Figure 1 . In addition, the residual current device RCD refers to a residual current operated protective device in electrical codes. In the present invention, one normally open contact and one normally closed contact of the first relay KM and the second relay KO are used, and the first relay KM and the second relay KO can include multiple normally open contacts and multiple normally closed contacts. Similarly, the emergency stop relay 35 described below can have multiple normally open contacts and multiple normally closed contacts.

[0039] The normally open contact KO1 of the second relay and the coil KM0 of the first relay are connected in series and then connected in parallel with the primary side of the first transformer T1. The secondary side of the first transformer T1 outputs a working voltage. That is, the first transformer T1 provides a working voltage for the first relay KM and the second relay KO.

[0040] The primary side of the second transformer T2 is externally connected to a power supply, and the secondary side of the second transformer T2 outputs a working voltage; specifically, the second transformer T2 converts 380V alternating current into 24V to supply power to the warning lamp 31 and the emergency stop relay 35. In addition, in the present invention, to provide a working voltage for relays, warning lamps, etc., it is not limited to the transformers listed above, and any voltage conversion circuit can be used.

[0041] Each group of emergency stop components includes an emergency stop relay 35, an emergency stop switch 32, and a warning lamp 31. The emergency stop switch 32 includes an emergency stop normally open contact and an emergency stop normally closed contact, and only one of the emergency stop normally open contact and the emergency stop normally closed contact of the emergency stop switch 32 can be satisfied; the warning lamp 31 includes a red lamp 311 and a green lamp 310.

[0042] As Figure 7 shown, after the emergency stop normally closed contacts of all the emergency stop switches 32 are connected in series with the second relay coil KO0, they are then connected in parallel with the secondary side of the first transformer T1; the emergency stop normally open contacts of each group of emergency stop components are connected in series with the emergency stop relay coil and then connected in parallel with the secondary side of the first transformer T1; the green lamps 310 of each group of emergency stop components are connected in series with the emergency stop relay normally closed contacts and then connected in parallel with the secondary side of the second transformer T2; the red lamps 311 of each group of emergency stop components are connected in series with the emergency stop relay normally open contacts and then connected in parallel with the secondary side of the second transformer T2.

[0043] As Figure 7 shown, the safety device 3 of this embodiment includes four groups of emergency stop components, specifically including four emergency stop relays 35, four emergency stop switches 32, and four warning lamps 31. The connection relationship is as follows:

[0044] The emergency stop normally closed contacts of the four emergency stop switches 32 are respectively defined as SB1, SB2, SB3, and SB4. The four emergency stop normally closed contacts SB1, SB2, SB3, SB4 and the second relay coil KO0 are connected in series, and after being connected in series, they are then connected in parallel with the secondary side of the first transformer T1, that is, the first transformer T1 provides the working voltage.

[0045] The emergency stop normally open contacts of the four emergency stop switches 32 are respectively defined as SB5, SB6, SB7, and SB8. Among them, SB5 is connected in series with the emergency stop relay coil K10 of the same group, SB6 is connected in series with the emergency stop relay coil K20 of the same group, SB7 is connected in series with the emergency stop relay coil K30 of the same group, and SB8 is connected in series with the emergency stop relay coil K40 of the same group. After being connected in series, they are all connected in parallel with the secondary side of the first transformer T1, that is, the first transformer T1 provides the working voltage.

[0046] The red lights 311 of the four warning lights 31 are respectively defined as E1, E2, E3, and E4. Among them, E1 is connected in series with the normally open contact K11 of the emergency stop relay in the same group, E2 is connected in series with the normally open contact K21 of the emergency stop relay in the same group, E3 is connected in series with the normally open contact K31 of the emergency stop relay in the same group, and E4 is connected in series with the normally open contact K41 of the emergency stop relay in the same group. After being connected in series, they are all connected in parallel with the secondary side of the second transformer T2, that is, the working voltage is provided by the second transformer T2.

[0047] The green lights 310 of the four warning lights 31 are respectively defined as E5, E6, E7, and E8. Among them, E5 is connected in series with the normally closed contact K12 of the emergency stop relay in the same group, E6 is connected in series with the normally closed contact K22 of the emergency stop relay in the same group, E7 is connected in series with the normally closed contact K32 of the emergency stop relay in the same group, and E8 is connected in series with the normally closed contact K42 of the emergency stop relay in the same group. After being connected in series, they are all connected in parallel with the secondary side of the second transformer T2, that is, the working voltage is provided by the second transformer T2.

[0048] As Figures 1 to 7 As shown together, when the present invention is actually used, first, the power supply 33 is turned on, the leakage protector RCD is turned on, the coil KO0 of the second relay is energized, and the normally open contact KO1 of the second relay changes from the normally open state to the normally closed state. At this time, the coil KM0 of the first relay is energized, and the normally open contact KM1 of the first relay changes from the normally open state to the normally closed state, realizing the power-on of the mobile device 2.

[0049] By rotating the traveling motor 24, the traveling crane is operated to move in the horizontal direction. By rotating the lifting motor 27, the load-bearing wheels 28 of the traveling crane are operated to move in the vertical direction. By controlling the rotation of the load-bearing wheels 28, the load-bearing hook 20 is operated to move in the plumb direction, and all four warning lights 31 display green, indicating that the equipment is in the operating state.

[0050] When a fault occurs, any one of the emergency stop switches 32 is pressed to cut off the power supply of the traveling crane and perform an emergency brake. The principle of the emergency brake is that when the traveling motor 24 and the lifting motor 27 are powered off, the internal servo will also be powered off, which will form a brake, causing the traveling motor 24 and the lifting motor 27 to stop rotating immediately, thereby performing an emergency brake on the equipment.

[0051] The following takes pressing one of the emergency stop switches 32 as an example for explanation:

[0052] As Figure 7 As shown, when the first emergency stop switch 32 is pressed, the normally closed contact SB1 of the emergency stop switch 32 changes from the normally closed state to the normally open state, causing the coil KO0 of the second relay to be powered off, and the normally open contact K01 of the second relay returns to the normally open state. At this time, the coil KM0 of the first relay is powered off, and the normally open contact KM1 of the first relay returns to the normally open state, realizing the power-off of the mobile device 2.

[0053] The normally open emergency stop contact SB5 of the first emergency stop switch 32 changes from a normally open point to a normally closed point. The emergency stop relay coil K10 in the same group is energized, and the normally open contact K11 of the emergency stop relay changes from a normally open point to a normally closed point. The red light E1 circuit of the warning light 31 in the same group is connected, and the red light E1 of the warning light 31 lights up. The normally closed contact K12 of the emergency stop relay in the same group changes from a normally closed point to a normally open point, and the green light E5 circuit of the warning light 31 is disconnected. Therefore, the green light E5 of the warning light 31 goes out.

[0054] Operating any one of the emergency stop switches 32, the working process is the same as that of the first emergency stop switch 32 and will not be described again.

[0055] In summary, the traveling crane system of the present invention can hook an object and move it within a limited range, and can perform an emergency brake when a safety accident occurs. By setting the warning light 31, the operating state of the equipment is indicated. When the warning light 31 is not on, it means that the traveling crane is not operating. When the warning light 31 lights green, it means that the traveling crane is operating normally. When the warning light 31 lights red, it means that the traveling crane is in an emergency brake. Moreover, the safety device 3 of the present invention has a simple circuit structure, low cost, is easy to implement, and can be widely applied.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent improvements to a traveling crane system, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A driving system, comprising a supporting device and a moving device mounted on the supporting device, characterized in that: Also included is a safety device, the safety device comprising a leakage protector, a first relay, a second relay, a first transformer and at least one set of emergency stop components; One end of the leakage protector is electrically connected to a power source, the other end of the leakage protector is electrically connected to the primary side of the first transformer and one end of the normally open contact of the first relay respectively, and the other end of the normally open contact of the first relay is electrically connected to the mobile device; The normally open contact of the second relay is connected in series with the first relay coil and then connected in parallel with the primary side of the first transformer, and the secondary side of the first transformer outputs a working voltage; Each group of the emergency stop components includes an emergency stop relay and an emergency stop switch, and the emergency stop switch includes an emergency stop normally open contact and an emergency stop normally closed contact; The emergency stop normally closed contacts of all the emergency stop switches are connected in series with the second relay coil and then connected in parallel with the secondary side of the first transformer; The emergency stop normally open contacts of each group of the emergency stop components are connected in series with the emergency stop relay coil and then connected in parallel with the secondary side of the first transformer.

2. The driving system according to claim 1, characterized in that: The safety device further comprises a second transformer, a primary side of the second transformer is externally connected to a power supply, and a secondary side of the second transformer outputs a working voltage; Each group of the emergency stop components also includes a warning light, and the warning light includes a red light and a green light; The green light of each group of the emergency stop components is connected in series with the normally closed contact of the emergency stop relay, and then connected in parallel with the secondary side of the second transformer; The red light of each group of the emergency stop components is connected in series with the normally open contact of the emergency stop relay and then connected in parallel with the secondary side of the second transformer.

3. The driving system according to claim 1, characterized in that: The moving device comprises a horizontal moving mechanism and a lifting mechanism, wherein the horizontal moving mechanism is mounted on the supporting device, and the lifting mechanism is mounted on the horizontal moving mechanism; The horizontal moving mechanism comprises two guide rails arranged at intervals, each of the guide rails is provided with a first running wheel, and the first running wheel is provided with an adapting groove, and the adapting groove is adapted to the assembly position of the guide rails.

4. The driving system according to claim 3, characterized in that: The horizontal moving mechanism comprises a load-bearing beam disposed between the two guide rails, load-bearing arms are fixed to both ends of the load-bearing beam, a first wheel bracket is fixed to the bottom end of the load-bearing arm, and the first wheel bracket is rotatably connected to the corresponding first traveling wheel; The horizontal moving mechanism further includes a moving power component, the moving power component is used to drive the first walking wheel to rotate on the guide rail, and the moving power component is electrically connected to the normally open contact of the first relay; The lifting mechanism includes a load-bearing wheel rotatably arranged on the load-bearing beam, a lifting motor transmission-connected to the load-bearing wheel, a load-bearing chain wound around the load-bearing wheel, and a load-bearing hook arranged at the end of the load-bearing chain. The lifting motor is electrically connected to the normally open contact of the first relay, and the lifting motor is used to drive the load-bearing wheel to rotate.

5. The driving system according to claim 4, characterized in that: The horizontal movement mechanism includes a moving power component arranged one-to-one with the first walking wheel; The mobile power assembly includes a second wheel bracket fixed on the load-bearing arm, a second walking wheel rotatably arranged on the second wheel bracket, and a walking motor transmission-connected to the second walking wheel, the second walking wheel and the first walking wheel are arranged on the guide rail in front and behind, the walking motor is used to drive the second walking wheel to rotate, and the walking motor is electrically connected to the normally open contact of the first relay.

6. The driving system according to claim 3, characterized in that: The adapting groove is an inverted V-shaped groove.

7. The driving system according to claim 3, characterized in that: The supporting device comprises a plurality of vertically arranged brackets, and the emergency stop assembly is installed on each of the brackets.

8. The driving system according to claim 7, characterized in that: Each of the brackets comprises a horizontal plate and two vertical plates. The two vertical plates are arranged on both sides of the horizontal plate. The horizontal plate and the vertical plates are both made of plates with uniform thickness.

9. The driving system according to claim 7, characterized in that: The supporting device also includes two cross beams arranged at intervals, each of which is installed on the top of the bracket, and a guide rail is installed on the top surface of each cross beam.

10. The driving system according to claim 9, characterized in that: Each of the crossbeams is in an I-shape; a plurality of reinforcing ribs are arranged on both sides of each of the crossbeams; and / or all of the reinforcing ribs on each side of the crossbeams are arranged in two upper and lower rows.