Adjustable slide wire device

Abstract

The utility model relates to the technical field of sliding contact lines, and discloses an adjustable sliding contact line device which comprises a bottom plate, a transmission assembly is installed at the upper end of the bottom plate, the transmission assembly comprises a first worm and a second worm which are oppositely arranged on the bottom plate, the first worm and the second worm are arranged in the same straight line direction and parallel to each other, and the rotation directions of the first worm and the second worm are opposite. A worm wheel is arranged between the first worm and the second worm and meshed with the first worm and the second worm, a gear is perpendicularly arranged upwards in the axial direction of the worm wheel and coaxially connected with the worm wheel, the periphery of the gear is in meshed connection with a rack frame in the direction perpendicular to the plane where the worms are located, the rack frame is fixed to a mounting frame, and the mounting frame is perpendicular to the bottom plate. The slide wire is movably connected to the upper end of the rack frame.

Description

Technical Field

[0001] This application belongs to the field of sliding contact line technology, specifically relating to an adjustable sliding contact line device. Background Technology

[0002] Several conductors are laid parallel to the running track of the mobile device and connected to the power supply. On the moving device, current collectors that can draw power from the conductors are installed. In this way, when the device moves, the current collectors move synchronously with the device and draw power from the conductors at any time to supply the device so that the device can continue to move. The device composed of these conductors and current collectors is called a sliding contact line.

[0003] In the prior art, the sliding contact line can only slide in the left and right direction during use, and cannot be quickly adjusted in the front and back position. As a result, it cannot better adapt to the sliding power supply environment of different mobile devices, which greatly increases the limitation of the use of the sliding contact line and reduces the overall performance of the sliding contact line. Therefore, those skilled in the art have provided an adjustable sliding contact line device to solve the problems mentioned in the background art. Utility Model Content

[0004] This application provides an adjustable sliding contact line device to solve the technical problem that the aforementioned sliding contact line cannot be quickly adjusted in front and back positions.

[0005] The technical solution adopted in this application is as follows:

[0006] An adjustable sliding contact line device includes a base plate, a transmission assembly mounted on the upper end of the base plate, and the transmission assembly including a first worm and a second worm disposed opposite to each other on the base plate. The first worm and the second worm are respectively arranged along the same straight line direction and are parallel to each other, with opposite rotation directions. A turbine is disposed between the first worm and the second worm and meshes with the first worm and the second worm. A gear is disposed vertically upward from the axial direction of the turbine and is coaxially connected to the turbine. The outer circumference of the gear meshes with a rack frame in a direction perpendicular to the plane where the worm is located. The rack frame is fixed to a mounting frame, which is perpendicular to the base plate. The sliding contact line is movably connected to the upper end of the rack frame.

[0007] Optionally, the first worm and the second worm are fixed to the base plate by support seats, which are respectively located at both ends of the base plate.

[0008] Optionally, the number of teeth on the turbine is greater than the number of teeth on the worm to ensure that the turbine only rotates on its own axis and does not produce axial displacement when the worm rotates in the opposite direction.

[0009] Optionally, the mounting bracket is provided with a guide groove in a direction perpendicular to the base plate, and the rack bracket is slidably fitted into the guide groove.

[0010] Optionally, a limiting block is provided between the base plate and the mounting bracket, and a stop is provided at the end of the mounting bracket away from the limiting block, so that the limiting block contacts the stop to limit its range of movement.

[0011] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0012] 1. It achieves bidirectional adjustment of the sliding contact line without the need for a gear planetary mechanism or an additional eccentric device, thus simplifying the structure;

[0013] 2. By utilizing the principle of horizontal force balance caused by the counter-rotation of the two worm gears, axial displacement of the gears and worm is avoided, thus improving the stability of the adjustment process;

[0014] 3. The overall transmission process is free from severe torque shocks, ensuring smooth transmission and making it suitable for long-term operating conditions;

[0015] 4. The sliding contact line positioning process does not require loosening or locking the mechanism, reducing operation steps and improving adjustment efficiency. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of an adjustable sliding contact line device according to this application;

[0018] Figure 2 This is a three-dimensional schematic diagram of the transmission component in an adjustable sliding contact line device according to this application;

[0019] Figure 3 This is a three-dimensional schematic diagram of the gear, rack frame, and mounting frame in an adjustable sliding contact line device according to this application;

[0020] Figure 4 This is a schematic diagram showing the engagement of the limit stop and the stop part.

[0021] 1. Base plate; 2. Transmission assembly; 21. First worm gear; 22. Second worm gear; 23. Turbine; 3. Gear; 4. Rack and pinion frame; 5. Mounting bracket; 6. Sliding contact line; 7. Support base; 8. Guide groove; 9. Limiting block; 10. Stop. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0024] An adjustable sliding contact line device includes a base plate 1. A transmission assembly 2 is mounted on the upper end of the base plate 1. The transmission assembly 2 includes a first worm 21 and a second worm 22 disposed opposite to each other on the base plate 1. The first worm 21 and the second worm 22 are respectively arranged along the same straight line direction and are parallel to each other, with opposite rotation directions. A turbine 23 is disposed between the first worm 21 and the second worm 22 and meshes with the first worm 21 and the second worm 22. A gear 3 is arranged vertically upward from the axial direction of the turbine 23 and is coaxially connected to the turbine 23. The outer periphery of the gear 3 meshes with a rack frame 4 in a direction perpendicular to the plane of the worm. The rack frame 4 is fixed to a mounting frame 5, which is perpendicular to the base plate 1. The sliding contact line 6 is movably connected to the upper end of the rack frame 4.

[0025] Example 1:

[0026] refer to Figure 1 , Figure 2 as well as Figure 3 When the device is put into use, the first worm 21 and the second worm 22 are driven by an external drive to rotate synchronously in opposite directions. That is, the first worm 21 rotates clockwise and the second worm 22 rotates counterclockwise, or the first worm 21 rotates counterclockwise and the second worm 22 rotates counterclockwise and clockwise. Since the two worms rotate in opposite directions, their meshing forces on the turbine 23 cancel each other out in the horizontal direction, causing the turbine 23 and the coaxially connected gear 3 to not rotate on their own axis, but to move as a whole in the horizontal direction coaxial with the worms.

[0027] Example 2:

[0028] refer to Figure 1 , Figure 2 as well as Figure 3 This embodiment is still based on the basic structure in Embodiment 1. When the first worm 21 rotates clockwise and the second worm 22 also rotates clockwise, or when the first worm 21 rotates counterclockwise and the second worm 22 also rotates counterclockwise, the forces exerted by the two worms on the turbine 23 cancel each other out in the horizontal direction, so that the turbine 23 does not undergo overall translation, but only rotates freely around its own axis. Since the turbine 23 is coaxially connected with the gear 3, the rotation of the turbine 23 drives the gear 3 to rotate synchronously. When the gear 3 rotates, it meshes with the rack frame 4 along its outer circumference, and pushes the rack frame 4 to move in the guide groove 8 on the mounting frame 5. The displacement direction is perpendicular to the plane where the worm is located, so as to realize the precise vertical adjustment of the sliding contact line 6.

[0029] Furthermore, the first worm 21 and the second worm 22 are fixed to the base plate 1 by support seats 7, which are respectively located at both ends of the base plate 1.

[0030] By adopting the above technical solution, and referring to Figure 1 as well as Figure 2 Support seats 7 are provided at both ends of the base plate 1. The first worm 21 and the second worm 22 are respectively fixed on their respective support seats 7 to improve the rigidity and coaxiality of the worm installation. The support seats 7 support the worm so that the worm is not prone to bending deformation when subjected to reverse driving force, ensuring the smooth movement of the turbine 23 and gear 3, and making the adjustment of the sliding contact line 6 smoother.

[0031] Furthermore, the number of teeth on the turbine 23 is greater than the number of teeth on the worm, to ensure that the turbine 23 only rotates on its own axis and does not produce axial displacement when the worm rotates in the opposite direction.

[0032] By adopting the above technical solution, and referring to Figure 1 The number of teeth on the turbine 23 is greater than that on the worm, to ensure that when the worm rotates in the opposite direction, the turbine 23 only rotates on its own axis without generating axial displacement. When the worm rotates in the opposite direction, causing a meshing force, the turbine 23 rotates on its own axis due to the difference in the number of teeth. However, due to the tooth ratio, its axial component force is canceled out, and the turbine 23 maintains its axial position, ensuring the translational accuracy of the rack carrier 4.

[0033] Furthermore, the mounting bracket 5 is provided with a guide groove 8 in a direction perpendicular to the base plate 1, and the rack bracket 4 is slidably fitted into the guide groove 8.

[0034] By adopting the above technical solution, and referring to Figure 4 The mounting bracket 5 is provided with a guide groove 8 in a direction perpendicular to the base plate 1, and the rack frame 4 is slidably fitted into the guide groove 8. Under the constraint of the guide groove 8, the rack frame 4 can only slide within a predetermined plane, preventing displacement or jamming caused by lateral forces.

[0035] Furthermore, a limiting block 9 is provided between the base plate 1 and the mounting bracket 5. A stop part 10 is provided at the end of the mounting bracket 5 away from the limiting block 9. The limiting block 9 contacts the stop part 10 to limit its range of movement.

[0036] By adopting the above technical solution, and referring to Figure 1 as well as Figure 4 A limiting block 9 is provided between the base plate 1 and the mounting bracket 5. A stop part 10 is provided at the end of the mounting bracket 5 away from the limiting block 9. The limiting block 9 contacts the stop part 10 to limit the movement range of the mounting bracket 5. When the rack frame 4 drives the mounting bracket 5 to move to the limit position, the stop part 10 collides with the limiting block 9 to achieve mechanical limiting and prevent overtravel damage.

[0037] Working principle:

[0038] A first worm 21 and a second worm 22 are arranged in opposite directions on the base plate 1, with the first worm 21 and the second worm 22 rotating in opposite directions. A turbine 23 meshes between the first worm 21 and the second worm 22. A gear 3 is connected coaxially above the turbine 23, and the gear 3 meshes with a rack 4 arranged perpendicular to the worm. When the first worm 21 and the second worm 22 rotate synchronously in opposite directions, their horizontal forces on the turbine 23 cancel each other out, causing the turbine 23 and the coaxial gear 3 to move horizontally without rotating. After the displacement reaches the designated position, the rotation direction of the first worm 21 and the second worm 22 is adjusted, and the first worm 21 and the second worm 22 rotate synchronously in the same direction. The first worm 21 and the second worm 22 rotate freely only around their own axes. Since the turbine 23 is coaxially connected to the gear 3, the rotation of the turbine 23 drives the gear 3 to rotate synchronously. When the gear 3 rotates, it meshes with the rack frame 4 along its outer circumference, pushing the rack frame 4 to move in the guide groove 8 on the mounting bracket 5. The displacement direction is perpendicular to the plane where the worm is located, thereby achieving precise vertical adjustment of the sliding contact line 6.

[0039] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0040] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0041] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An adjustable sliding contact line device, comprising a base plate (1), characterized in that: A transmission assembly (2) is installed on the upper end of the base plate (1). The transmission assembly (2) includes a first worm (21) and a second worm (22) arranged opposite to each other on the base plate (1). The first worm (21) and the second worm (22) are arranged along the same straight line direction and are parallel to each other. Their rotation directions are opposite. A turbine (23) is arranged between the first worm (21) and the second worm (22). The turbine (23) meshes with the first worm (21) and the second worm (22). A gear (3) is arranged vertically upward from the axial direction of the turbine (23). The gear (3) is coaxially connected to the turbine (23). The outer periphery of the gear (3) meshes with the rack frame (4) in a direction perpendicular to the plane where the worm is located. The rack frame (4) is fixed to the mounting frame (5). The mounting frame (5) is arranged perpendicular to the base plate (1). The sliding contact line (6) is movably connected to the upper end of the rack frame (4).

2. The adjustable sliding contact line device according to claim 1, characterized in that: The first worm (21) and the second worm (22) are fixed to the base plate (1) by support seats (7), which are respectively located at both ends of the base plate (1).

3. The adjustable sliding contact line device according to claim 1, characterized in that: The number of teeth of the turbine (23) is greater than the number of teeth of the worm, so as to ensure that the turbine (23) only rotates on its own and does not generate axial displacement when the worm rotates in the opposite direction.

4. The adjustable sliding contact line device according to claim 1, characterized in that: The mounting bracket (5) is provided with a guide groove (8) in a direction perpendicular to the base plate (1), and the rack bracket (4) is slidably fitted into the guide groove (8).

5. The adjustable sliding contact line device according to claim 1, characterized in that: A limiting block (9) is provided between the base plate (1) and the mounting frame (5). A stop part (10) is provided at one end of the mounting frame (5) away from the limiting block (9). The limiting block (9) contacts the stop part (10) to limit its range of movement.

Images