A crane current collector sliding block wear detection device

Abstract

The utility model relates to a crane current collection sliding block wear detection device belongs to crane current collection sliding block wear detection technical field. This crane current collection sliding block wear detection device, include: slide contact line, the surface of slide contact line is equipped with current collector, the surface mounting of current collector has conductive sliding block, still include detection part, the fixed block of detection part includes fixed connection in current collector end, the inner wall of fixed block is hinged with support, through support, wireless transmitter and inductive proximity sensor mutual cooperation, realized to conductive sliding block and to the information of detection non -contact type wear contact and wireless transmission, further realized real -time monitoring the wear condition of conductive sliding block, avoided because conductive sliding block wear excessive and produced the safety hidden danger of related part damage of hooking, compared with the existing adoption contact type wear detection easy to lead to the detection precision is lower, and this method has improved the precision of conductive sliding block wear detection.

Description

Technical Field

[0001] This utility model relates to the field of crane current collector slider wear detection technology, and in particular to a crane current collector slider wear detection device. Background Technology Bridge cranes are lifting equipment that spans across workshops, warehouses, and material yards to lift and transport materials. The power collection system of a bridge crane is a key part that provides power for the operation of the bridge crane. It is usually powered by the current collector sliding contacting a fixed sliding contact line on the steel structure of the factory building. The copper ink slider on the current collector wears down due to long-term sliding contact. In order to ensure stable power supply and safe operation of the crane, a contact wear detection device is usually installed on the slider.

[0002] A search revealed that the Chinese patent "A Steel Body Conductive Slider Wear Monitoring Device" (authorization announcement number "CN220467359U") describes a device that, when the conductive slider wears down to the side of the pressure plate, the sliding line presses the pressure plate and the pressure column inward, squeezing the spring and pressing it against the pressure sensor. At this time, the signal received by the pressure sensor is transmitted to the crane terminal, reminding the staff that the conductive slider has worn down to the point where it needs to be replaced. This device can monitor the usage of the conductive slider in real time to ensure the stable operation of the crane as a whole.

[0003] In the aforementioned application, because the pressure plate and pressure column slide within the conductive slider, the vibration force generated by the conductive slider during operation is easily transmitted to the spring, which in turn can easily cause the pressure plate and pressure column to slide within the conductive slider and accidentally touch the pressure sensor, thereby affecting the accuracy of the wear detection of the conductive slider. Utility Model Content

[0004] Therefore, it is necessary to provide a crane current collector slider wear detection device to address the problem of low accuracy in conductive slider wear detection.

[0005] It includes: a sliding contact line, the surface of which is provided with a current collector, and the surface of which is provided with a conductive slider; it also includes a detection component, the detection component including a fixing block fixedly connected to the end of the current collector, the inner wall of which is hinged with a bracket, the surface of which is provided with an inductive proximity sensor and a wireless transmitter, and the surface of which is threaded with a first nut.

[0006] In one embodiment, a positioning frame is slidably connected to the inner wall of the bracket, and the surface of the positioning frame contacts the surfaces of the inductive proximity sensor, the first nut, and the wireless transmitter, respectively.

[0007] In one embodiment, a guide block is fixedly connected to the surface of the bracket, and the inner wall of the positioning frame is slidably connected to the surface of the guide block.

[0008] In one embodiment, a positioning rod and a rubber block are slidably connected to the inner wall of the positioning frame. The surface of the positioning rod is engaged with the inner wall of the guide block, and the surface of the rubber block is slidably connected to the inner wall of the positioning rod. Through the cooperation of the positioning rod and the rubber block, the positioning frame is locked onto the guide block, thereby ensuring the stable mounting of the inductive proximity sensor and the wireless transmitter on the bracket. This guarantees stable wear detection of the conductive slider by the inductive proximity sensor and the wireless transmitter, improving the accuracy of wear detection of the conductive slider.

[0009] In one embodiment, a spring is fixedly connected to one end of the positioning rod, and the other end of the spring is fixedly connected to the inner wall of the positioning frame.

[0010] In one embodiment, a plurality of limiting blocks are fixedly connected to the end of the bracket, and the surface of the wireless transmitter contacts the surface of the limiting blocks. The limiting blocks restrict the wireless transmitter placed on the bracket, ensuring that the positioning frame accurately positions the wireless transmitter.

[0011] In one embodiment, screws are fixedly connected to both the front and rear ends of the bracket.

[0012] In one embodiment, a second nut is threaded onto the surface of the screw, with one end of the second nut contacting the end of the fixing block. The screw and the second nut cooperate to lock the bracket after angle adjustment within the fixing block, ensuring stable wear detection of the conductive slider by the inductive proximity sensor and the wireless transmitter. Beneficial effects

[0013] 1. By using a bracket, a wireless transmitter, and an inductive proximity sensor in combination, non-contact wear contact with the conductive slider and wireless transmission of the detection information are achieved, thereby enabling real-time monitoring of the wear condition of the conductive slider. This avoids the safety hazards of hook slippage and damage to related components due to excessive wear of the conductive slider. Compared with the existing contact wear detection method, which is prone to low detection accuracy, this method improves the accuracy of conductive slider wear detection. 2. By cooperating with the positioning rod and the rubber block, the positioning frame is locked on the guide block, thereby enabling the inductive proximity sensor and the wireless transmitter to be stably installed on the bracket. This ensures that the inductive proximity sensor and the wireless transmitter can stably detect wear on the conductive slider, improving the accuracy of wear detection on the conductive slider. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the detection component structure of this utility model; Figure 3 This is a schematic diagram of the support structure of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is an exploded view of the positioning frame, positioning rod, and rubber block of this utility model.

[0016] Figure label: 100. Sliding contact line; 200. Current collector; 300. Conductive slider; 400. Detection component; 401. Fixing block; 402. Bracket; 403. Wireless transmitter; 404. Inductive proximity sensor; 405. First nut; 406. Positioning frame; 407. Guide block; 408. Screw; 409. Second nut; 410. Positioning rod; 411. Rubber block; 412. Spring; 413. Limiting block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figures 1-5 This invention describes a crane current collector slider wear detection device.

[0019] In one embodiment, a crane current collector slider wear detection device includes: a sliding contact line 100, a current collector 200 disposed on the surface of the sliding contact line 100, and a conductive slider 300 mounted on the surface of the current collector 200; it also includes a detection component 400, which includes a fixing block 401 fixedly connected to the end of the current collector 200, a bracket 402 hinged to the inner wall of the fixing block 401, an inductive proximity sensor 404 and a wireless transmitter 403 disposed on the surface of the bracket 402, and a first nut 405 threadedly connected to the surface of the inductive proximity sensor 404.

[0020] It should be noted that the copper wire is installed on the current collector 200 using bolts and limit nuts.

[0021] In this embodiment, when the bridge crane needs to move goods, the power distribution box of the bridge crane is operated and the bridge crane is turned on. When the bridge crane is running, the conductive slider 300 moves with the bridge crane and always maintains close contact with the sliding contact line 100. The sliding contact line 100 is a fixed conductive track that is powered by the power supply system. During the contact process between the conductive slider 300 and the sliding contact line 100, the electrical energy is conducted from the sliding contact line 100 to the current collector 200, and then the current collector 200 transmits the electrical energy to the electrical system of the crane, thereby providing power for the lifting, running and other mechanisms of the bridge crane.

[0022] During operation, the conductive slider 300 is manually controlled by the control switches of the inductive proximity sensor 404 and the wireless transmitter 403. This allows the inductive proximity sensor 404 to perform non-contact detection of the conductive slider 300 through the eddy current effect. The alternating magnetic field induces eddy currents inside the metal, and the reverse magnetic field generated by the eddy currents weakens the original magnetic field, causing changes in the inductance, impedance, or oscillation frequency of the conductive slider 300. After detecting these changes, the signal processing circuit amplifies, filters, and converts them into a switching signal. The detected signal is then wirelessly transmitted to the control system on the PLC controller via the wireless transmitter 403. The control system outputs a wear setting signal for the conductive slider 300 thickness and issues an alarm, thereby dynamically monitoring the wear status of the conductive slider 300 in real time and preventing safety hazards such as hook slippage and damage to related components due to excessive wear of the conductive slider 300.

[0023] like Figure 2-4As shown, a positioning frame 406 is slidably connected to the inner wall of the bracket 402. The surface of the positioning frame 406 contacts the surfaces of the inductive proximity sensor 404, the first nut 405, and the wireless transmitter 403, respectively. A guide block 407 is fixedly connected to the surface of the bracket 402. The inner wall of the positioning frame 406 is slidably connected to the surface of the guide block 407. A positioning rod 410 and a rubber block 411 are slidably connected to the inner wall of the positioning frame 406. The surface of the positioning rod 410 is engaged with the inner wall of the guide block 407. The surface of the rubber block 411 is slidably connected to the inner wall of the positioning rod 410. A spring 412 is fixedly connected to the end of the positioning rod 410. The other end of the spring 412 is fixedly connected to the inner wall of the positioning frame 406. Several limiting blocks 413 are fixedly connected to the end of the bracket 402. The surface of the wireless transmitter 403 contacts the surface of the limiting block 413.

[0024] In this embodiment, the inductive proximity sensor 404 is slid into the bracket 402 and abuts against one side of the bracket 402. The first nut 405 is threaded onto the surface of the inductive proximity sensor 404 and abuts against the other side of the bracket 402. The wireless transmitter 403 is placed on the opposite side of the four limiting blocks 413. The positioning frame 406 is pushed to move laterally on the surface of the guide block 407, so that the surface of the positioning frame 406 abuts against the surfaces of the wireless transmitter 403, the inductive proximity sensor 404, and the first nut 405 respectively, loosening the restriction on the positioning rod 410. The elastic force of the spring 412 pushes the positioning rod 410 to move laterally in the positioning frame 406 and lock it in the guide block 407. The rubber block 411 is pushed down in the positioning frame 406 and slides into the positioning rod 410, so that the positioning frame 406 is locked on the surface of the guide block 407, thereby allowing the wireless transmitter 403 and the inductive proximity sensor 404 to be installed on the bracket 402.

[0025] like Figure 3 As shown, screws 408 are fixedly connected to both the front and rear ends of the bracket 402. A second nut 409 is threaded onto the surface of the screw 408. One end of the second nut 409 contacts the end of the fixing block 401.

[0026] In this embodiment, after the support 402 is rotated at a suitable angle within the fixing block 401, the second nut 409 is threaded onto the surface of the screw 408 and pressed against the surface of the fixing block 401, so that the support 402 is locked onto the fixing block 401.

[0027] Working principle: The inductive proximity sensor 404 performs non-contact detection of the conductive slider 300 through the eddy current effect. The detected signal is wirelessly transmitted to the control system on the PLC controller through the wireless transmitter 403. The control system outputs a signal that the thickness wear of the conductive slider 300 has reached the set value and alarms, reminding the worker to replace the conductive slider 300 on the current collector 200 in time, thereby dynamically monitoring the wear change status of the conductive slider 300 in real time.

[0028] It should be noted that the sliding contact line 100, current collector 200, conductive slider 300, wireless transmitter 403, inductive proximity sensor 404, and spring 412 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the sliding contact line 100, current collector 200, conductive slider 300, wireless transmitter 403, and inductive proximity sensor 404 can be powered by the built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A crane current collector slider wear detection device, characterized in that, include: A sliding contact line (100) is provided with a current collector (200) on its surface, and a conductive slider (300) is mounted on the surface of the current collector (200). It also includes a detection component (400), which includes a fixing block (401) fixedly connected to the end of the current collector (200). A bracket (402) is hinged to the inner wall of the fixing block (401). An inductive proximity sensor (404) and a wireless transmitter (403) are provided on the surface of the bracket (402). A first nut (405) is threaded onto the surface of the inductive proximity sensor (404).

2. The crane current collector slider wear detection device according to claim 1, characterized in that, The inner wall of the bracket (402) is slidably connected to a positioning frame (406), the surface of which contacts the surface of the inductive proximity sensor (404), the first nut (405) and the wireless transmitter (403).

3. The crane current collector slider wear detection device according to claim 2, characterized in that, The surface of the bracket (402) is fixedly connected to the guide block (407), and the inner wall of the positioning frame (406) is slidably connected to the surface of the guide block (407).

4. The crane current collector slider wear detection device according to claim 3, characterized in that, The inner wall of the positioning frame (406) is slidably connected to a positioning rod (410) and a rubber block (411). The surface of the positioning rod (410) is engaged with the inner wall of the guide block (407), and the surface of the rubber block (411) is slidably connected to the inner wall of the positioning rod (410).

5. The crane current collector slider wear detection device according to claim 4, characterized in that, A spring (412) is fixedly connected to the end of the positioning rod (410), and the other end of the spring (412) is fixedly connected to the inner wall of the positioning frame (406).

6. The crane current collector slider wear detection device according to claim 1, characterized in that, The end of the bracket (402) is fixedly connected to several limiting blocks (413), and the surface of the wireless transmitter (403) contacts the surface of the limiting blocks (413).

7. The crane current collector slider wear detection device according to claim 1, characterized in that, Both ends of the bracket (402) are fixedly connected with screws (408).

8. The crane current collector slider wear detection device according to claim 7, characterized in that, The screw (408) is threaded with a second nut (409), one end of which contacts the end of the fixing block (401).

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