Detection device and system for telescopic joint connector of travelling crane sliding contact line

Abstract

The invention provides a detection device and system for a telescopic joint connector of a travelling crane sliding contact line. The device comprises a protective shell, a displacement sensor, a sensing piece, an indicating piece and a control part. The protective shell is arranged at the telescopic joint connector on the sliding contact line in a covering manner; sensing heads are arranged on the two sides of the displacement sensor; the sensing piece and the sensing head are correspondingly arranged; the indicating piece is used for emitting different light or sound signals; the control part is in communication connection with the displacement sensor and the indicating piece. The displacement sensor is used for obtaining the distance between the sensing head and the sensing piece and outputting the distance to the control part. The control part sends different signals to the indicating piece according to a preset range, and the indicating piece outputs different light or electric signals after receiving the different signals. According to the application, different working conditions of the expansion joint connector can be conveniently and quickly obtained, and the expansion joint connector has the characteristics of small size, simple structure, convenience in installation and the like, and has innovation and improvement values on the application of the expansion joint connector.

Description

Technical Field

[0001] The present application relates to the technical field of metallurgical production, and more specifically, to a detection device and system for a telescopic joint connector of an overhead traveling crane's sliding contact wire. Background Art

[0002] The sliding contact wire is one of the important devices for power supply to the movement of cranes, and conducts current through contact with the current collector. It is widely used in metallurgical manufacturing enterprises.

[0003] However, due to the thermal expansion and contraction characteristics of the metal of the sliding contact wire, seasonal temperature changes will cause the sliding contact wire to have an unfixed displacement. When the temperature rises and falls sharply, the stress generated by the sliding contact wire will suddenly increase. To offset this stress, a telescopic joint connector is installed at the joint of the sliding contact wire.

[0004] When the joint of the sliding contact wire cannot withstand the stress and disengages, the stroke of the telescopic joint connector will fail, resulting in a power supply failure. When the disengaged gap is small, the traveling crane current collector will get stuck and jump, and the voltage will be unstable, causing unexplained faults. When the disengaged gap is large, the traveling crane will quickly pass through the fault point, resulting in the current collector pulling and damaging the hanging seat of the sliding contact wire. When the weight of the fallen sliding contact wire exceeds the bearing limit of a single hanging seat, the entire sliding contact wire will fall and cause extensive equipment damage.

[0005] In summary, an improved technical solution is needed to address the deficiencies of the above-mentioned existing technologies. Summary of the Invention

[0006] The purpose of the embodiments of the present application is to provide a detection device and system for a telescopic joint connector of an overhead traveling crane's sliding contact wire, which can obtain the gap state of the telescopic joint connector in real time to guide maintenance, thereby extending the service life of the sliding contact wire, improving the inspection efficiency of the sliding contact wire, and ultimately achieving cost reduction and efficiency improvement.

[0007] In a first aspect, a detection device for a telescopic joint connector of an overhead traveling crane's sliding contact wire is provided, including:

[0008] A protective shell, which covers the telescopic joint connector on the sliding contact wire;

[0009] A displacement sensor, which is arranged on the protective shell, and induction heads are arranged on both sides of the displacement sensor;

[0010] Inductive members, which are correspondingly arranged with the induction heads and are respectively arranged at the two joints of the sliding contact wire and the telescopic joint connector;

[0011] An indicating member, which is arranged outside the protective shell and is used to emit different light or sound signals, and different light or sound signals are used to represent different working conditions of the telescopic joint connector;

[0012] A control unit, which is communicatively connected to the displacement sensor and the indicator respectively. The displacement sensor is used to obtain the distance between the sensing head and the sensing element and output it to the control unit; the control unit sends different signals to the indicator according to a predetermined range, and the indicator outputs different optical or electrical signals after receiving different signals.

[0013] In an implementable manner, the total stroke between the sensing head and the sensing element is determined based on the length of the expansion joint connector, and the predetermined range set in the control unit is determined according to the total stroke.

[0014] In an implementable manner, when the distance between any one of the sensing heads and the corresponding sensing element is a first distance, the control unit emits a first signal; when the distance between any one of the sensing heads and the corresponding sensing element is a second distance, the control unit emits a second signal; when the distance between any one of the sensing heads and the corresponding sensing element is a third distance, the control unit emits a third signal.

[0015] In an implementable manner, when the total stroke between the sensing head and the sensing element is 100 mm, the first distance is 0 - 5 mm; the second distance is 5 - 10 mm; the third distance is greater than 10 mm.

[0016] In an implementable manner, the indicator is a three-color display lamp, and the three-color display lamp can emit: a red optical signal, a green optical signal, and a yellow optical signal.

[0017] In an implementable manner, when the indicator receives the first signal, the indicator emits a green optical signal; when the indicator receives the second signal, the indicator emits a yellow optical signal; when the indicator receives the third signal, the indicator emits a red optical signal.

[0018] In an implementable manner, when the indicator receives the third signal, the indicator emits a red optical signal and simultaneously emits a sound signal.

[0019] In an implementable manner, the protective shell is an insulating cover.

[0020] In an implementable manner, the displacement sensor is a magnetostrictive displacement sensor.

[0021] According to the second aspect of the present application, a detection system for a traveling trolley wire expansion joint connector is further provided, including a data acquisition module, a data processing and control module, and an acoustic-optic output module.

[0022] The data acquisition module is used to obtain the distance between the sensing head and the sensing element in the detection device of the first aspect and output it.

[0023] A data processing and control module, configured to receive and process signals from the data acquisition component and output instructions according to the signals from the data acquisition component.

[0024] An acoustic-optic output module, configured to receive instructions from the data processing and control module and emit different acoustic-optic signals.

[0025] Compared with the prior art, the beneficial effects of the present application are as follows:

[0026] In the technical solution of the present application, the present application can conveniently and quickly obtain different working conditions of the expansion joint connector, has the characteristics of small volume, simple structure, and convenient installation, and has innovative and improved value for the application of the expansion joint connector. By providing an indicating member on the protective shell, different working conditions of the expansion joint connector can be judged through different sound or light signals, so that the inspection personnel can directly observe the device state and timely master the situation of the sliding contact line gap, thereby effectively controlling the disconnection fault of the sliding contact line. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the layout position of the detection device for the traveling crane sliding contact line expansion joint connector according to an embodiment of the present invention.

[0028] Figure 2 It is a schematic structural diagram of the detection device for the traveling crane sliding contact line expansion joint connector according to an embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of the principle of the detection system for the traveling crane sliding contact line expansion joint connector according to an embodiment of the present invention.

[0030] Among them, the descriptions of the reference numerals are as follows:

[0031] 1. Sliding contact line; 2. Detection device; 3. Protective shell; 4. Three-color display lamp; 5. Displacement sensor; 6. Expansion joint connector; 7. Sliding contact line joint; 8. First induction head; 9. Induction member; 10. Second induction head. Detailed Description of the Embodiments

[0032] The following further describes in detail the specific embodiments of the present invention with reference to the drawings. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" 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 of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] According to the first aspect of the present application, referring to Figure 1 and Figure 2 , first, a detection device for a traveling contact wire expansion joint connector is provided. It is arranged at the expansion joint connector of the contact wire, and the expansion joint connector is installed at the contact wire joint 7. It includes:

[0037] A protective shell 3, and the protective shell 3 covers the expansion joint connector 6 on the contact wire 1.

[0038] A displacement sensor 5 is arranged on the protective shell 3. Induction heads are arranged on both sides of the displacement sensor 5, namely a first induction head 8 and a second induction head 10.

[0039] An induction member 9 is arranged at the joint of the contact wire 1 and the expansion joint connector 6, and the induction member 9 is used in cooperation with the induction head.

[0040] It should be noted that one induction member 9 can be respectively arranged at two joints, or one induction member 9 can be arranged on one side of the joint. In this embodiment, only one induction member 9 is arranged on the left side of the joint.

[0041] An indicating member is used to emit different light or sound signals to indicate different working conditions of the expansion joint connector 6 of the contact wire 1.

[0042] A control unit, which is communicatively connected to the displacement sensor 5 and the indicator respectively. The displacement sensor 5 is used to obtain the distance between the sensing head and the sensing member 9 and output it to the control unit. The control unit sends different signals to the indicator according to a predetermined range, and the indicator outputs different optical or electrical signals after receiving different signals.

[0043] In an implementable manner, the total stroke between the sensing head and the sensing member 9 is determined according to the length of the expansion joint connector 6, and the predetermined range set in the control unit is determined according to the total stroke.

[0044] In an implementable manner, when the distance between any one of the sensing heads and the corresponding sensing member 9 is the first distance, the control unit emits a first signal; when the distance between any one of the sensing heads and the corresponding sensing member 9 is the second distance, the control unit emits a second signal; when the distance between any one of the sensing heads and the corresponding sensing member 9 is the third distance, the control unit emits a third signal.

[0045] In this embodiment, the total stroke between the sensing head and the sensing member 9 is 100 mm. When the distance between the first sensing head 8 and the sensing member 9 is less than 5 mm, or when the distance between the second sensing joint and the sensing member 9 is 95 - 100 mm, the control unit emits a first signal. When the distance between the first sensing head 8 and the sensing member 9 is 5 - 10 mm, or when the distance between the second sensing joint and the sensing member 9 is 90 - 95 mm, the control unit emits a second signal. When the distance between the first sensing head 8 and the sensing member 9 is greater than 10 mm, or when the distance between the second sensing joint and the sensing member 9 is less than 90 mm, the control unit emits a third signal.

[0046] In an implementable manner, the indicator is a three-color display lamp 4, and the three-color display lamp 4 can emit: a red light signal, a green light signal, and a yellow light signal.

[0047] Specifically, when the indicator receives the first signal, the indicator emits a green light signal. When the indicator receives the second signal, the indicator emits a yellow light signal. When the indicator receives the third signal, the indicator emits a red light signal. Through the setting of the indicator, the gap state of the sliding contact line 1 is visually displayed. Through different color identifications, different working conditions are represented respectively, so as to ensure that the inspection personnel can clearly identify the current working condition of the expansion joint connector 6 and make timely handling.

[0048] When the color of the three - color display light 4 changes, it indicates that the length of the expansion joint connector 6 of the sliding contact wire 1 exceeds the safe range, indicating an abnormality of the indicating device. The worker immediately reported the abnormal information and quickly confirmed the abnormal state of the expansion joint connector 6 through the intuitive display method of the present invention, and took timely treatment measures, successfully avoiding further failures and equipment damage.

[0049] In this practical application, by observing the color change of the external three - color display light 4, the inspection personnel can quickly determine the state of the expansion joint connector 6, including normal, deteriorated or faulty. This intuitive display method eliminates the problem that the state of the traditional sliding contact wire 1 expansion joint connector 6 cannot be observed, improving the work efficiency and safety of the inspection personnel.

[0050] It should be noted that the three - color display light 4 under normal working conditions will remain stable: when the expansion joint connector 6 is in a normal state, the length of each gap is within a reasonable range, and the corresponding three - color indicator light remains in a stable state without change. This design ensures that under normal operating conditions, the inspection personnel can accurately judge that the state of the device is normal.

[0051] In an implementable manner, when the indicating member receives the third signal, the indicating member emits a red light signal and simultaneously emits a sound signal to warn the staff to process it in time.

[0052] In an implementable manner, the protective shell 3 is an insulating cover shell to protect the sliding contact wire 1.

[0053] In an implementable manner, the displacement sensor 5 is a magnetostrictive displacement sensor 5.

[0054] In an implementable manner, the control unit further includes a wireless remote monitoring module. The wireless remote monitoring module can be installed in the control room, and the wireless transmission distance of the wireless remote monitoring module is 1000 meters. The signal is transmitted to the control room within the predetermined transmission range or the factory intelligent equipment management system through the wireless remote monitoring module to remotely monitor and alarm the state of the expansion joint connector 6, improving the intelligent level of the management system.

[0055] As shown in the figure, according to the second aspect of the present application, a detection system for the expansion joint connector 6 of the traveling crane sliding contact wire 1 is further provided, including a data acquisition module, a data processing and control module, and an acoustic - optical output module.

[0056] The data acquisition module is used to obtain the distance between the induction head and the induction member 9 in the detection device 2 of the first aspect and output it.

[0057] Specifically, a data acquisition module is provided at the telescopic joint connection of each sliding contact wire 1. The data acquisition module includes, but is not limited to, a displacement sensor 5. In this embodiment, there are 4 displacement sensors 5.

[0058] A data processing and control module, configured to receive and process the signals of the data acquisition components, and output instructions according to the signals of the data acquisition components.

[0059] An acoustic-optic output module, configured to receive the instructions of the data processing and control module and emit different acoustic-optic signals.

[0060] Specifically, the data processing and control module receives and identifies the signals of the displacement sensors 5, and outputs a first signal, a second signal or a third signal according to preset values. The acoustic-optic output module emits different optical signals or sound signals according to the signal type to remind the equipment management personnel to process the faults in time, eliminate potential safety hazards and ensure safe production.

[0061] In summary, the present application can conveniently and quickly obtain different working conditions of the telescopic joint connector 6, and has the characteristics of small volume, simple structure, convenient installation, etc. It has innovative and improved value for the application of the telescopic joint connector 6. By setting an indicating member on the protective shell 3, different working conditions of the telescopic joint connector 6 can be judged through different sound or optical signals, so that the inspection personnel can directly observe the device state and timely master the situation of the gap of the sliding contact wire 1, thereby effectively controlling the pulling-apart fault of the sliding contact wire 1.

[0062] The advantages of the present application also lie in that the volume has no significant change compared with the traditional type, the structure is simple, the installation is convenient, and there is no need for an external power supply. It is driven by the potential difference between the body and the ground, reducing the dependence on external equipment. At the same time, through the setting of the three-color display lamp 4, the device can quickly and intuitively display the gap state of the sliding contact wire 1, enabling the operator to timely discover abnormal situations and take appropriate measures, thereby ensuring the safe operation of the sliding contact wire 1, improving the maintenance efficiency and safety, and avoiding high-risk operations at the edge and waste of a large amount of sliding contact wire 1 spare parts costs.

[0063] The present application has been successfully applied in the sliding contact wire project of the tube blank bay on January 11, 2023. During the operation process, the sudden drop in temperature caused the telescopic joint connector of the sliding contact wire at the indoor-outdoor junction to be abnormally disconnected. Through the present application, the working conditions of the telescopic joint connector can be obtained in time to guide the staff to process the abnormal working conditions in a timely and effective manner.

[0064] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A detection device for a telescopic joint connector of an overhead trolley wire, characterized in that, it includes: A protective shell, which covers the telescopic joint connector on the overhead trolley wire; A displacement sensor, which is arranged on the protective shell, and induction heads are arranged on both sides of the displacement sensor; An induction member, which is arranged corresponding to the induction head, and is respectively arranged at two joints of the overhead trolley wire and the telescopic joint connector; An indicating member, which is used to emit different light or sound signals, and different light or sound signals are used to represent different working conditions of the telescopic joint connector; A control unit, the control unit is respectively communicatively connected to the displacement sensor and the indicating member, and the displacement sensor is used to obtain the distance between the induction head and the induction member and output it to the control unit; the control unit sends different signals to the indicating member according to a predetermined range, and the indicating member outputs different light or electrical signals after receiving different signals.

2. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 1, characterized in that, Based on the length of the telescopic joint connector, the total stroke between the induction head and the induction member is determined, and the predetermined range set in the control unit is determined according to the total stroke.

3. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 2, characterized in that, When the distance between any one of the induction heads and the corresponding induction member is a first distance, the control unit emits a first signal; when the distance between any one of the induction heads and the corresponding induction member is a second distance, the control unit emits a second signal; when the distance between any one of the induction heads and the corresponding induction member is a third distance, the control unit emits a third signal.

4. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 3, characterized in that, When the total stroke between the induction head and the induction member is 100 mm, the first distance is 0 - 5 mm; the second distance is 5 - 10 mm; the third distance is greater than 10 mm.

5. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 3, characterized in that, The indicating member is a three-color display lamp, and the three-color display lamp can emit: a red light signal, a green light signal, and a yellow light signal.

6. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 5, characterized in that, When the indicating member receives the first signal, the indicating member emits a green light signal; when the indicating member receives the second signal, the indicating member emits a yellow light signal; when the indicating member receives the third signal, the indicating member emits a red light signal.

7. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 6, characterized in that, When the indicating member receives the third signal, the indicating member emits a red light signal and simultaneously emits a sound signal.

8. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 1, characterized in that, The protective shell is an insulating cover shell.

9. The detection device for a telescopic joint connector of an overhead trolley wire according to claim 1, characterized in that, The displacement sensor is a magnetostrictive displacement sensor.

10. A detection system for a telescopic joint connector of an overhead contact line for a traveling crane, characterized in that, it includes: a data acquisition module, configured to obtain the distance between the induction head and the induction element in the detection device according to any one of claims 1-9 and output it; a data processing and control module, configured to receive and process the signal of the data acquisition component and output an instruction according to the signal of the data acquisition component; a sound and light output module, configured to receive the instruction of the data processing and control module and emit different sound and light signals.

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