A sliding contact line temperature expansion compensation device

Abstract

The utility model discloses a kind of sliding contact line temperature expansion compensation devices, it is related to overhead travelling crane technical field, including oppositely arranged connecting seat, copper sheet is equipped between the connecting seat, ground wire is equipped between the connecting seat, moving seat is equipped on the connecting seat, the moving seat is connected with ground wire, detection assembly for detecting the pressure between moving seat and connecting seat is equipped on the connecting seat.Compensation device when working, when two connecting seats are relatively displaced to ground wire is stretched by external force, detection is carried out by detection assembly, it is convenient for staff to carry out maintenance work to ground wire, to prevent ground wire from being damaged by external force for a long time, to further increase the service life of entire compensation device, more practical.

Description

Technical Field

[0001] This utility model relates to the field of overhead crane technology, and in particular to a temperature expansion compensation device for a sliding contact line. Background Technology

[0002] In industrial workshops, overhead cranes are widely used, and the overhead crane conductor rail, as the main power supply device for the crane, plays a vital role. The relatively long conductor rail is significantly affected by temperature; therefore, a temperature compensator is installed to compensate for the thermal expansion and contraction of the conductor rail caused by temperature changes.

[0003] For example, CN110176703B, published on April 26, 2024, discloses a sliding contact line compensation device, including a main guide rail, a sliding contact strip, and an insulating shell. It also includes sliding blocks and conductive sheets. The sliding block is divided into two parts, with its two ends fixedly connected to the sliding contact line using clamps. Internally, it includes several conductive sheets that can slide relative to each other, fixedly connected by screws and series bolts. Its two sides are slidably connected by limiting grooves and limiting bolts. Wires are bolted between the sliding blocks. In use, the grounding wire on the compensation device is subjected to tension due to the relative movement of the fixed blocks. When the fixed blocks move to their extreme positions, the grounding wire is easily damaged, resulting in a short service life and poor practicality for the entire compensation device. Summary of the Invention

[0004] The purpose of this invention is to provide a more practical temperature expansion compensation device for sliding contact lines. This invention uses a detection component mounted on the connecting seat to detect the tension received by the moving seat and the grounding wire, thereby preventing damage to the grounding wire from long-term use, facilitating maintenance of the grounding wire, and thus improving its practicality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is: a sliding contact line temperature expansion compensation device, including connecting seats arranged opposite each other, copper sheets provided between the connecting seats, a grounding wire provided between the opposite connecting seats, a movable seat provided on the connecting seat, the movable seat being connected to the grounding wire, and a detection component provided on the connecting seat for detecting the pressure between the movable seat and the connecting seat.

[0006] The connecting seat is provided with a movable groove, and the movable seat is disposed in the movable groove.

[0007] The movable seat is provided with guide plates on both sides, and the two guide plates are in contact with the two sides of the connecting seat respectively.

[0008] The detection component includes a control panel mounted on a connecting base, an indicator light on the control panel, and a pressure sensor on the control panel. The detection rod of the pressure sensor extends between the movable base and the wall of the movable groove.

[0009] The movable seat is provided with a first elastic seat, and the groove wall of the movable slot is provided with a second elastic seat. The detection rod of the pressure sensor extends between the first elastic seat and the second elastic seat.

[0010] The connector is equipped with an insulating base, which is connected to the control panel.

[0011] The movable base is connected to the grounding wire via bolts and nuts.

[0012] A washer is provided between the bolt head and the movable seat, and a washer is provided between the nut and the movable seat.

[0013] The corners of the connector are rounded.

[0014] The copper sheet has a chamfered end.

[0015] The beneficial effects of this utility model are:

[0016] When the compensation device is working, the two connecting seats are relatively displaced, causing the grounding wire to be stretched by external force. This is detected by the detection component, which makes it easier for staff to inspect and maintain the grounding wire. This prevents the grounding wire from being damaged by external force for a long time, thereby increasing the service life of the entire compensation device and making it more practical.

[0017] The pressure sensor on the control panel detects the pressure of the moving seat pressing against the groove wall of the connecting seat, thereby detecting the force on the grounding wire. The indicator light on the control panel prompts the staff to perform the grounding wire test, making the detection of the tensile force on the grounding wire convenient and quick. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the sliding contact line temperature expansion compensation device of this utility model.

[0019] Figure 2 for Figure 1 A partially enlarged structural diagram.

[0020] Figure 3 for Figure 1 Side view.

[0021] In the attached diagram: 1-connecting seat, 2-moving seat, 3-moving groove, 4-guide plate, 5-bolt, 6-nut, 7-pad, 8-grounding wire, 9-first elastic seat, 10-second elastic seat, 11-control panel, 12-pressure sensor, 13-indicator light, 14-insulating seat, 15-chamfer, 16-rounded corner, 17-copper sheet. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figure 1-3 As shown, the sliding contact line temperature expansion compensation device includes a connecting seat 1 arranged opposite each other, a copper sheet 17 between the connecting seats 1, a grounding wire 8 between the opposite connecting seats 1, a movable seat 2 on the connecting seat 1, the movable seat 2 being connected to the grounding wire 8, and a detection component on the connecting seat 1 for detecting the pressure between the movable seat 2 and the connecting seat 1. The movable seat 2 moves laterally on the connecting seat 1, thereby ensuring that the movable seat 2, the connecting seat 1, and the grounding wire 8 can conduct electricity. The detection component detects the tension received by the grounding wire 8.

[0025] In use, the overhead crane cable passes under the copper plate 17 to install the entire compensation device on the overhead crane sliding contact line. When the compensation device is working, the two connecting seats 1 are relatively displaced, causing the grounding wire 8 to be stretched by external force. This is detected by the detection component, which facilitates the maintenance of the grounding wire 8 by the staff, thereby preventing the grounding wire 8 from being damaged by external force for a long time, thus increasing the service life of the entire compensation device and making it more practical.

[0026] The connecting seat 1 is provided with a movable groove 3, and the movable seat 2 is set in the movable groove 3. The movable seat 2 can move stably on the connecting seat 1 through the movable groove 3. Specifically, the movable seat 2 has a rectangular cross section, and the movable groove 3 is a rectangular groove. The movable seat 2 slides in the movable groove 3, thereby ensuring that the movable seat 2 and the connecting seat 1 can conduct electricity.

[0027] Guide plates 4 are provided on both sides of the movable seat 2. The two guide plates 4 contact the two sides of the connecting seat 1 respectively. Through the limiting work of the guide plates 4, the movable seat 2 is ensured to slide stably in the moving groove 3 of the connecting seat 1. Specifically, there are two guide plates 4, which are welded to both sides of the movable seat 2 to ensure the stable movement of the movable seat 2. In another embodiment, the guide plates 4 are connected to the movable seat 2 by bolts, thereby realizing the convenient assembly and disassembly of the movable seat 2 on the connecting seat 1.

[0028] The detection assembly includes a control panel 11 mounted on the connecting seat 1. The control panel 11 has an indicator light 13 and a pressure sensor 12. The detection rod of the pressure sensor 12 extends between the moving seat 2 and the groove wall of the moving slot 3. When the compensation device is working, the relative movement of the connecting seat 1 causes the grounding wire 8 to be stretched. The moving seat 2, connected to the grounding wire 8, moves within the moving slot 3, pressing against the detection rod of the pressure sensor 12. This allows the pressure sensor 12 to detect the tension received by the grounding wire 8. When the pressure received by the grounding wire 8 reaches a specified pressure, the control... The indicator light 13 on the panel 11 illuminates to alert the staff and prompt them to perform maintenance on the compensation device. When the two connecting seats 1 move to their maximum relative positions, the moving seat 2 presses the detection rod of the pressure sensor 12 in the moving groove 3. The pressure signal detected by the pressure sensor 12 is transmitted to the control panel 11, which controls the indicator light 13 to illuminate for prompting. In this embodiment, the pressure sensor 12 is a piezoelectric pressure sensor, specifically model SK-Z012, while the control panel 11 uses a microcontroller of model MC6801.

[0029] The movable seat 2 is provided with a first elastic seat 9, and the movable groove 3 is provided with a second elastic seat 10 in the groove wall. The detection rod of the pressure sensor 12 extends between the first elastic seat 9 and the second elastic seat 10. The first elastic seat 9 and the second elastic seat 10 are provided to protect the pressure sensor 12 and prevent the pressure sensor 12 from being damaged due to excessive pressure. Specifically, the first elastic seat 9 is connected to the movable seat 2 by screws, and the second elastic seat 10 is connected to the groove wall of the movable groove 3 by screws. In this embodiment, the first elastic seat 9 and the second elastic seat 10 are rubber seats.

[0030] The connector 1 is provided with an insulating seat 14, which is connected to the control panel 11. The insulating seat 14 protects the control panel 11 from damage caused by high voltage current. In this embodiment, the insulating seat 14 is a ceramic seat. The insulating seat 14 is connected to the connector 1 by screws, and the control panel 11 is connected to the insulating seat 14 by screws.

[0031] The movable base 2 is connected to the grounding wire 8 by bolts 5 and nuts 6, thereby ensuring a stable connection between the grounding wire 8 and the movable base 2. In this embodiment, the end of the grounding wire 8 is provided with a copper connecting plate. The bolts 5 pass through the movable base 2 and the copper connecting plate and are connected to the nuts 6, thereby realizing the connection between the movable base 2 and the grounding wire 8. In this embodiment, the movable base 2 is provided with two bolts 5.

[0032] A washer 7 is provided between the bolt head of bolt 5 and the movable seat 2, and a washer 7 is provided between nut 6 and movable seat 2. The two washers 7 are used to protect the movable seat 2, thereby ensuring a stable connection between the grounding wire 8 and the movable seat 2.

[0033] The corner of the connector 1 is provided with a rounded corner 16. The rounded corner 16 is used to blunt the acute angle of the connector 1, thereby protecting the user and preventing the user from being cut when installing the compensation device.

[0034] The end of the copper sheet 17 is provided with a chamfer 15. The chamfer 15 facilitates the stable connection between the copper sheet 17 of the compensation device and the overhead crane cable, and prevents the copper sheet 17 from sliding off the sliding contact line after receiving external force. Specifically, the angle of the chamfer 15 is 15-30°. In this embodiment, the angle of the chamfer 15 is 25°.

[0035] In summary, when the compensation device is in use, the connecting seat 1 is placed on the sliding contact line of the overhead crane. When the overhead crane is working, the two connecting seats 1 are in relative positions and are always connected by the copper sheet 17. When the connecting seat 1 moves to the grounding wire 8 and is subjected to external force, the movable seat 2 connected to the grounding wire 8 moves in the movable groove 3. When the first elastic seat 9 on the movable seat 2 moves toward the second elastic seat 10, the first elastic seat 9 and the second elastic seat 10 squeeze the detection rod of the pressure sensor 12, thereby detecting the tension received by the grounding wire 8 through the pressure sensor 12. When the pressure received by the grounding wire 8 reaches the specified pressure, the indicator light 13 on the control panel 11 lights up, thereby prompting the staff to carry out maintenance work on the compensation device.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sliding contact line temperature expansion compensation device, comprising connecting seats (1) arranged opposite each other, a copper sheet (17) provided between the connecting seats (1), and a grounding wire (8) provided between the connecting seats (1), characterized in that, The connecting seat (1) is provided with a movable seat (2), the movable seat (2) is connected to the grounding wire (8), and the connecting seat (1) is provided with a detection component for detecting the pressure between the movable seat (2) and the connecting seat (1).

2. The temperature expansion compensation device for the sliding contact line according to claim 1, characterized in that, The connecting seat (1) is provided with a movable groove (3), and the movable seat (2) is disposed in the movable groove (3).

3. The temperature expansion compensation device for the sliding contact line according to claim 2, characterized in that, The movable seat (2) is provided with guide plates (4) on both sides, and the two guide plates (4) respectively contact the two sides of the connecting seat (1).

4. The temperature expansion compensation device for the sliding contact line according to claim 3, characterized in that, The detection component includes a control panel (11) mounted on the connecting seat (1), an indicator light (13) on the control panel (11), and a pressure sensor (12) on the control panel (11). The detection rod of the pressure sensor (12) extends between the moving seat (2) and the groove wall of the moving groove (3).

5. The temperature expansion compensation device for the sliding contact line according to claim 4, characterized in that, The movable seat (2) is provided with a first elastic seat (9), and the movable groove (3) is provided with a second elastic seat (10) in the groove wall. The detection rod of the pressure sensor (12) extends between the first elastic seat (9) and the second elastic seat (10).

6. The temperature expansion compensation device for the sliding contact line according to claim 4, characterized in that, The connector (1) is provided with an insulating seat (14), which is connected to the control panel (11).

7. The temperature expansion compensation device for the sliding contact line according to any one of claims 1-6, characterized in that, The movable base (2) is connected to the grounding wire (8) by bolts (5) and nuts (6).

8. The temperature expansion compensation device for the sliding contact line according to claim 7, characterized in that, A washer (7) is provided between the bolt head (5) and the movable seat (2), and a washer (7) is provided between the nut (6) and the movable seat (2).

9. The temperature expansion compensation device for the sliding contact line according to claim 8, characterized in that, The corner of the connecting seat (1) is provided with a rounded corner (16).

10. The temperature expansion compensation device for the sliding contact line according to claim 9, characterized in that, The copper sheet (17) has a chamfer (15) at its end.

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