Automatic tension adjusting device for rail transit overhead line system

Abstract

The utility model relates to the technical field of overhead line system tension adjusting equipment, in particular to an automatic tension adjusting device for a rail transit overhead line system, which adjusts the tension of the overhead line system by arranging a power device and a winding and unwinding device to wind and unwind an overhead line system lead, widens the adjusting range and improves the usability of a machine. Comprising a body; the machine further comprises a power device, a retracting and releasing device, a shielding plate and a guiding device, the power device, the shielding plate and the guiding device are all installed on the machine body, and the retracting and releasing device is installed on the power device; the machine body provides support, the power device provides power for the retracting and releasing device, the retracting and releasing device adjusts the tension of the overhead line system, the shielding plate shields the power device, and the guiding device guides the overhead line system.

Description

Technical Field

[0001] This utility model relates to the technical field of contact wire tension adjustment equipment, and in particular to an automatic tension adjustment device for rail transit contact wires. Background Technology

[0002] The overhead contact line is a high-voltage transmission line that is erected in a zigzag pattern above the rails in electrified railways to supply current to the pantograph. The tension of the contact line is constantly changing due to the influence of temperature and airflow. In order to prevent the contact line from breaking, its tension needs to be adjusted.

[0003] Existing contact wire tension adjustment devices, such as the Chinese utility model patent CN221340305U (a tension adjustment device for railway power supply contact wire), represent a class of prior art whose main structure includes a protective shell, a spring, a floating block, and a grooved wheel. The protective shell protects the machine, the spring and the floating block work together to passively adjust the tension of the contact wire, and the grooved wheel is used to connect the contact wire.

[0004] However, the existing technology and equipment still have the following problems when in use: the tension of the contact wire is passively adjusted by the spring force, the adjustment range is small, and the machine is not easy to use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic tension adjustment device for rail transit contact wires, which adjusts the tension of the contact wires by setting up a power device and a winding and unwinding device to wind and unwind the contact wires, thereby increasing the adjustment range and improving the ease of use of the machine.

[0006] This utility model discloses an automatic tension adjustment device for rail transit contact wire, comprising a body; and further comprising a power unit, a take-up and extender device, a shielding plate, and a guide device. The power unit, shielding plate, and guide device are all mounted on the body, and the take-up and extender device is mounted on the power unit. The body provides support, the power unit provides power to the take-up and extender device, the take-up and extender device adjusts the tension of the contact wire, the shielding plate shields the power unit, and the guide device guides the contact wire.

[0007] Preferably, the fuselage includes a tower base, a tower body, and a mounting plate. The tower base is installed on the ground, the tower body is installed at the top of the tower base, and the mounting plate is installed at the top of the tower body. The line connecting the two ends of the extended portion of the mounting plate is parallel to the contact wire, providing support.

[0008] Preferably, the power unit includes a motor mount, a motor, and a reducer. The motor mount is mounted on a mounting plate, the motor is mounted on the side of the motor mount, and the reducer is fixedly mounted on the bottom of the motor. The motor provides power to the take-up and release device through the reducer. The motor provides power to drive the take-up and release device to rotate.

[0009] Preferably, the take-up and release device includes a turntable and multiple rotating shafts. The turntable is rotatably mounted at the bottom of the reducer, and the multiple rotating shafts are rotatably mounted at the bottom of the turntable at even intervals. The turntable rotates to take up and release the contact wire, thereby adjusting the tension of the contact wire. The rotating shafts rotate freely to reduce the friction between the rotating shafts and the contact wire, preventing the contact wire from getting stuck on the surface of the rotating shafts.

[0010] Preferably, the shielding plate is installed on the top of the mounting plate, and the outer edge of the shielding plate completely covers the power unit in the vertical direction; the shielding plate shields the motor to prevent water from entering and damaging the motor in bad weather.

[0011] Preferably, the guiding device includes two lead wire frames and a contact wire. The two lead wire frames are fixedly mounted on the mounting plate. Each of the two lead wire frames has a through hole. The contact wire is slidably mounted in the two through holes of the two lead wire frames and is wound around a rotating shaft. The lead wire frames guide the contact wire to prevent the angle change caused by the shaking of the contact wire from affecting the winding of the contact wire.

[0012] Preferably, the guiding device includes a contact wire lead, two lead frame 2, and two friction sleeves. The two lead frame 2 are mounted on a mounting plate, each with two mounting holes. The two friction sleeves are fixedly mounted in the two mounting holes of the two lead frame 2, and each friction sleeve has a through hole 2. The contact wire lead is slidably mounted in the two through holes 2 of the two friction sleeves, and there is significant friction between the contact wire lead and the friction sleeves. The contact wire lead is wound around a rotating shaft. The lead frame 2 guides the contact wire lead, preventing angle changes caused by contact wire swaying from affecting the winding of the contact wire lead. The sliding contact between the friction sleeves and the contact wire lead reduces the tension on the motor, preventing damage from continuous overload operation.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the tension of the contact wire by winding and unwinding the contact wire lead, the tension of the contact wire can be adjusted over a wide range, and the machine is easy to use. Attached Figure Description

[0014] Figure 1 This is an isometric structural schematic diagram of Embodiment 1 of this utility model;

[0015] Figure 2 This is an isometric structural schematic diagram of Embodiment 2 of this utility model;

[0016] Figure 3 This is an isometric structural diagram of the fuselage;

[0017] Figure 4 This is an isometric structural diagram of the power unit and the launching and retracting device;

[0018] Figure 5 This is an isometric structural diagram of the shielding plate;

[0019] Figure 6 It is an isometric structural diagram of the rotating shaft, lead frame 1, and contact wire lead, etc.

[0020] Figure 7 This is an isometric structural diagram of the contact wire, lead frame 2, and friction sleeve, etc.

[0021] The attached diagram is labeled as follows: 01, fuselage; 11, tower base; 12, tower body; 13, mounting plate; 02, power unit; 21, motor base; 22, motor; 23, reducer; 03, take-up and take-down device; 31, turntable; 32, rotating shaft; 04, shielding plate; 05, guide device; 51, lead wire frame one; 52, contact wire lead; 53, lead wire frame two; 54, friction sleeve. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0023] Example 1

[0024] like Figure 1 As shown, it includes a fuselage 01; it also includes a power unit 02, a take-up and extender device 03, a shielding plate 04, and a guide device 05. The power unit 02, the shielding plate 04, and the guide device 05 are all mounted on the fuselage 01, and the take-up and extender device 03 is mounted on the power unit 02. The fuselage 01 provides support, the power unit 02 provides power to the take-up and extender device 03, the take-up and extender device 03 adjusts the tension of the contact wire, the shielding plate 04 shields the power unit 02, and the guide device 05 guides the contact wire.

[0025] like Figure 3 As shown, the fuselage 01 includes a tower base 11, a tower body 12, and a mounting plate 13. The tower base 11 is installed on the ground, the tower body 12 is installed on the top of the tower base 11, and the mounting plate 13 is installed on the top of the tower body 12. The line connecting the two ends of the extended portion of the mounting plate 13 is parallel to the contact wire.

[0026] like Figure 4 As shown, the power unit 02 includes a motor base 21, a motor 22 and a reducer 23. The motor base 21 is mounted on the mounting plate 13, the motor 22 is mounted on the side of the motor base 21, and the reducer 23 is fixedly mounted on the bottom of the motor 22. The motor 22 provides power to the take-up and take-down device 03 through the reducer 23.

[0027] like Figure 4 As shown, the take-up and release device 03 includes a turntable 31 and a plurality of rotating shafts 32. The turntable 31 is rotatably mounted on the bottom end of the reducer 23, and the plurality of rotating shafts 32 are rotatably mounted on the bottom end of the turntable 31 at even intervals.

[0028] like Figure 5 As shown, the shielding plate 04 is installed on the top of the mounting plate 13, and the outer edge of the shielding plate 04 completely covers the power unit 02 in the vertical direction;

[0029] like Figure 6 As shown, the guiding device 05 includes two lead wire frames 51 and a contact wire 52. Both lead wire frames 51 are fixedly mounted on the mounting plate 13. Each of the two lead wire frames 51 is provided with a through hole. The contact wire 52 is slidably mounted in the two through holes of the two lead wire frames 51, and the contact wire 52 is mounted around a rotating shaft 32.

[0030] The motor 22 is switched on and off and rotated in the direction of rotation by using the tension sensor data on the contact wire. When the motor 22 is turned on, it provides power to drive the turntable 31 to rotate. The turntable 31 drives the rotating shaft 32 to rotate and retract the contact wire 52, thereby adjusting the tension of the contact wire. During retraction and retraction, the rotating shaft 32 rotates freely to reduce the friction between the rotating shaft 32 and the contact wire, preventing the contact wire from getting stuck on the surface of the rotating shaft 32. The lead wire frame 51 guides the contact wire 52 to prevent the angle change caused by the contact wire shaking from affecting the winding of the contact wire 52. When the contact wire encounters a sudden external force, the closed motor 22 creates a damping effect on the rotation of the turntable 31, thereby slowly and automatically releasing part of the contact wire 52, relieving the tension on the contact wire and preventing the contact wire from breaking.

[0031] Example 2

[0032] like Figure 2 As shown, it includes a fuselage 01; it also includes a power unit 02, a take-up and extender device 03, a shielding plate 04, and a guide device 05. The power unit 02, the shielding plate 04, and the guide device 05 are all mounted on the fuselage 01, and the take-up and extender device 03 is mounted on the power unit 02. The fuselage 01 provides support, the power unit 02 provides power to the take-up and extender device 03, the take-up and extender device 03 adjusts the tension of the contact wire, the shielding plate 04 shields the power unit 02, and the guide device 05 guides the contact wire.

[0033] like Figure 3 As shown, the fuselage 01 includes a tower base 11, a tower body 12, and a mounting plate 13. The tower base 11 is installed on the ground, the tower body 12 is installed on the top of the tower base 11, and the mounting plate 13 is installed on the top of the tower body 12. The line connecting the two ends of the extended portion of the mounting plate 13 is parallel to the contact wire.

[0034] like Figure 4 As shown, the power unit 02 includes a motor base 21, a motor 22 and a reducer 23. The motor base 21 is mounted on the mounting plate 13, the motor 22 is mounted on the side of the motor base 21, and the reducer 23 is fixedly mounted on the bottom of the motor 22. The motor 22 provides power to the take-up and take-down device 03 through the reducer 23.

[0035] like Figure 4 As shown, the take-up and release device 03 includes a turntable 31 and a plurality of rotating shafts 32. The turntable 31 is rotatably mounted on the bottom end of the reducer 23, and the plurality of rotating shafts 32 are rotatably mounted on the bottom end of the turntable 31 at even intervals.

[0036] like Figure 5 As shown, the shielding plate 04 is installed on the top of the mounting plate 13, and the outer edge of the shielding plate 04 completely covers the power unit 02 in the vertical direction;

[0037] like Figure 7 As shown, the guiding device 05 includes a contact wire 52, two wire guide frames 53, and two friction sleeves 54. The two wire guide frames 53 are mounted on the mounting plate 13, and each of the two wire guide frames 53 has two mounting holes. The two friction sleeves 54 are fixedly mounted in the two mounting holes of the two wire guide frames 53, and each of the two friction sleeves 54 has a through hole. The contact wire 52 is slidably mounted in the two through holes of the two friction sleeves 54, and there is a large friction between the contact wire 52 and the friction sleeves 54. The contact wire 52 is mounted around a rotating shaft 32.

[0038] The motor 22 is switched on and off and rotated in the direction of rotation by using the tension sensor data on the contact wire. When the motor 22 is on, it provides power to drive the turntable 31 to rotate. The turntable 31 drives the rotating shaft 32 to rotate and retract the contact wire 52, thereby adjusting the tension of the contact wire. During retraction, the rotating shaft 32 rotates freely, reducing the friction between the rotating shaft 32 and the contact wire and preventing the contact wire from getting stuck on the surface of the rotating shaft 32. The lead wire frame 53 guides the contact wire 52 and prevents the angle change caused by the contact wire shaking from affecting the winding of the contact wire 52. The friction sleeve 54 and the contact wire 52 make sliding contact, which can reduce the tension on the motor 22 and prevent the motor 22 from being damaged due to continuous overload operation. When the contact wire encounters a sudden external force, the closed motor 22 creates a damping effect on the rotation of the turntable 31, which can slowly and automatically release part of the contact wire 52, alleviate the tension on the contact wire and prevent the contact wire from breaking.

[0039] like Figures 1 to 6As shown, this utility model discloses an automatic tension adjustment device for rail transit contact wires. During operation, it controls the switching and rotation direction of motor 22 based on data from existing tension sensors on the contact wire. When motor 22 is on, it provides power to drive turntable 31 to rotate. Turntable 31 drives shaft 32 to rotate, thus retracting and extending the contact wire lead 52, thereby adjusting the contact wire tension. During retraction and extension, shaft 32 rotates freely, reducing friction between shaft 32 and the contact wire and preventing the contact wire from jamming on the surface of shaft 32. The second frame 53 guides the contact wire 52 to prevent the angle change caused by the contact wire shaking from affecting the winding of the contact wire 52. The friction sleeve 54 and the contact wire 52 make sliding contact, which can reduce the tension on the motor 22 and prevent the motor 22 from being damaged due to continuous overload operation. When the contact wire encounters a sudden external force, the closed motor 22 creates a damping effect on the rotation of the turntable 31, which can slowly and automatically release part of the contact wire 52, relieve the tension on the contact wire and prevent the contact wire from breaking.

[0040] The motor 22 of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0041] The main function achieved by this utility model is to adjust the tension of the contact wire by setting up a power device 02 and a winding and unwinding device 03 to wind and unwind the contact wire, thereby increasing the adjustment range and improving the ease of use of the machine; it solves the problem of the existing technology that passively adjusts the tension of the contact wire by spring force, resulting in a small adjustment range and poor machine ease of use.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic tension adjustment device for rail transit overhead contact lines, comprising a body (01); characterized in that, It also includes a power unit (02), a take-up and release device (03), a shielding plate (04), and a guide device (05). The power unit (02), the shielding plate (04), and the guide device (05) are all installed on the fuselage (01), and the take-up and release device (03) is installed on the power unit (02). The fuselage (01) provides support, the power unit (02) provides power to the take-up and release device (03), the take-up and release device (03) adjusts the tension of the contact wire, the shielding plate (04) shields the power unit (02), and the guide device (05) guides the contact wire.

2. The automatic tension adjustment device for rail transit contact network as described in claim 1, characterized in that, The fuselage (01) includes a tower base (11), a tower body (12), and a mounting plate (13). The tower base (11) is installed on the ground, the tower body (12) is installed on the top of the tower base (11), and the mounting plate (13) is installed on the top of the tower body (12). The line connecting the two ends of the extended mounting plate (13) is parallel to the contact wire.

3. The automatic tension adjustment device for rail transit contact network as described in claim 2, characterized in that, The power unit (02) includes a motor mount (21), a motor (22) and a reducer (23). The motor mount (21) is mounted on the mounting plate (13), the motor (22) is mounted on the side of the motor mount (21), and the reducer (23) is fixedly mounted on the bottom of the motor (22). The motor (22) provides power to the take-up and release device (03) through the reducer (23).

4. The automatic tension adjustment device for rail transit contact network as described in claim 3, characterized in that, The take-up and release device (03) includes a turntable (31) and multiple rotating shafts (32). The turntable (31) is rotatably mounted on the bottom end of the reducer (23), and the multiple rotating shafts (32) are rotatably mounted on the bottom end of the turntable (31) at even intervals.

5. The automatic tension adjustment device for rail transit contact network as described in claim 3, characterized in that, The shielding plate (04) is installed on the top of the mounting plate (13), and the outer edge of the shielding plate (04) completely covers the power unit (02) in the vertical direction.

6. The automatic tension adjustment device for rail transit contact network as described in claim 4, characterized in that, The guiding device (05) includes two lead frame 1 (51) and contact wire lead (52). The two lead frame 1 (51) are fixedly installed on the mounting plate (13). The two lead frame 1 (51) are respectively provided with through holes 1. The contact wire lead (52) is slidably installed in the two through holes 1 of the two lead frame 1 (51) and the contact wire lead (52) is mounted around a rotating shaft (32).

7. The automatic tension adjustment device for rail transit contact network as described in claim 4, characterized in that, The guiding device (05) includes a contact wire (52), two wire guide frames (53) and two friction sleeves (54). The two wire guide frames (53) are mounted on the mounting plate (13). Each of the two wire guide frames (53) has two mounting holes. The two friction sleeves (54) are fixedly mounted in the two mounting holes of the two wire guide frames (53). Each of the two friction sleeves (54) has a through hole. The contact wire (52) is slidably mounted in the two through holes of the two friction sleeves (54). There is a large friction force between the contact wire (52) and the friction sleeves (54). The contact wire (52) is mounted around a rotating shaft (32).

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