An automatic tension adjusting device for overhead line

Abstract

The utility model discloses a contact net wire tension automatic regulating device relates to electrified railway power supply technical field, the utility model discloses a plurality of bottom plate, the top outer wall of bottom plate is fixedly connected with a plurality of support column, and the outer wall fixed connection of left side support column has a plurality of fixed mount, the utility model discloses a mounting plate and spring, can rotate threaded rod when using, will make support plate move when threaded rod rotates, then will move with mounting plate when support plate moves, simultaneously mounting plate will slide with slider in the sliding slot, then will extrude spring when mounting plate moves, will release the spring force to sliding rod when spring is extruded, has realized the improvement flexibility, can according to the use environment flexible regulation tension threshold, avoid tension threshold too small or too big and lead to wire tension regulation, avoid tension threshold too big and lead to the problem that wire regulation appears simultaneously, can automatically regulate the tension of wire when wire relaxation.

Description

Technical Field

[0001] This utility model belongs to the field of electrified railway power supply technology, and in particular relates to an automatic tension adjustment device for contact wires. Background Technology

[0002] According to the published patent CN220562586U, a tension adjustment device for a contact wire includes a load-bearing base, a mounting plate fixedly connected to the upper outer wall of the load-bearing base, a movable plate movably connected to the middle of the mounting plate, and a contact wire fixedly connected to the upper outer wall of the movable plate. After the above equipment is completed, by changing the vertical position of the movable plate on the outer wall surface of the fixed rod, the contact wire can be pulled or relaxed as a whole. This allows the contact wire to be used in a normally taut state under different environments, avoiding internal problems caused by different environments. However, the following shortcomings still exist.

[0003] After the above equipment is completed, it only adjusts the tension of the contact wire. When the contact wire is in use, the tension of the contact wire will change due to temperature. The equipment is difficult to automatically adjust the tension of the contact wire according to the tension of the contact wire at that time, which will result in the contact wire being too tight and thus causing the contact wire to break. Therefore, we propose an automatic tension adjustment device for contact wire. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic tension adjustment device for contact wires. Through the adjustment mechanism and the fixing mechanism, it solves the problem that simply adjusting the tension of the contact wires can cause the tension of the contact wires to change due to temperature during use. The device cannot automatically adjust the tension of the contact wires according to the tension at that time, resulting in the wires becoming too tight and thus breaking.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an automatic tension adjustment device for contact wires, comprising several base plates, several support columns fixedly connected to the top outer wall of the base plates, several fixing frames fixedly connected to the outer wall of the support columns on the left side, several guide wheels rotatably connected to the inner wall of the fixing frames, and an adjustment mechanism provided on the outer wall of the support columns on the left side.

[0007] The adjustment mechanism includes a fixed plate, with the outer wall of the support column on the left side fixedly connected to the outer wall of the fixed plate. A support frame is fixedly connected to the bottom outer wall of the fixed plate. A threaded rod is rotatably connected to the inner wall of the support frame. A support plate is threadedly connected to the outer wall of the threaded rod. An mounting plate is fixedly connected to the top outer wall of the support plate. A sliding groove is formed on the inner wall of the fixed plate. A slider is slidably connected to the inner wall of the sliding groove. The outer wall of the slider is fixedly connected to the outer wall of the mounting plate. A circular groove is formed on the inner wall of the mounting plate. A sliding rod is slidably connected to the inner wall of the circular groove.

[0008] Furthermore, a spring is sleeved on the outer wall of the sliding rod, a wire is fixedly connected to the outer wall of the sliding rod near the fixed frame, the outer wall of the wire contacts the outer wall of the guide wheel, a slide rail is fixedly connected to the outer wall of the support column on the left, the inner wall of the slide rail is slidably connected to the outer wall of the wire, and a fixing mechanism is provided on the inner wall of the support column on the right.

[0009] Furthermore, the fixing mechanism includes a mounting frame, which is fixedly connected to the outer wall of the support column on the right side.

[0010] Furthermore, the inner wall of the mounting bracket is rotatably connected to a threaded rod two, and the outer wall of the threaded rod two is threadedly connected to a threaded block.

[0011] Furthermore, a joint shaft is fixedly connected to the outer wall of the threaded block, and a connecting rod is rotatably connected to the outer wall of the joint shaft.

[0012] Furthermore, a second joint shaft is rotatably connected to the inner wall of the end of the connecting rod away from the joint shaft, and a locking block is fixedly connected to the outer wall of the second joint shaft.

[0013] Furthermore, a guide groove is provided on the inner wall of the support column located on the right side, and a support block is slidably connected to the inner wall of the guide groove.

[0014] Furthermore, the bottom outer wall of the support block is fixedly connected to the top outer wall of the card block, and the outer wall of the support column on the right side is fixedly connected to the second card block.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates an mounting plate and a spring. During use, the threaded rod can be rotated, causing the support plate to move. This movement of the support plate carries the mounting plate along with it, while the mounting plate slides along a groove with a slider. The movement of the mounting plate compresses the spring, releasing its elasticity to the sliding rod. This enhances flexibility, allowing for flexible adjustment of the tension threshold according to the usage environment. It prevents issues caused by an excessively low or high tension threshold, and avoids problems during wire tension adjustment caused by an excessively high tension threshold. Furthermore, it automatically adjusts the wire tension when it becomes slack, keeping the wire straight and preventing excessive slack from affecting normal use.

[0017] 2. This utility model incorporates a connecting rod and a locking block. When the threaded block moves, it moves the joint shaft, which in turn moves the connecting rod in an arc motion. As the connecting rod moves, it moves the second joint shaft, which in turn moves the locking block. As the locking block moves, it causes the support block to slide in the guide groove. Simultaneously, as the locking block moves, it clamps the wire onto the second locking block, thereby improving stability. This effectively and quickly fixes the wire to the equipment, preventing it from falling off during use and ensuring stable operation.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the slide rail structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the support plate structure of this utility model;

[0023] Figure 4 This is a cross-sectional view of the sliding rod structure of this utility model;

[0024] Figure 5 This is a sectional view of the mounting frame structure of this utility model;

[0025] Figure 6 This is a cross-sectional view of the card block structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base plate; 101. Support column; 102. Fixing frame; 103. Guide wheel; 2. Adjustment mechanism; 201. Fixing plate; 202. Support frame; 203. Threaded rod; 204. Support plate; 205. Mounting plate; 206. Slide groove; 207. Slider; 208. Circular groove; 209. Sliding rod; 210. Spring; 211. Wire; 212. Slide rail; 3. Fixing mechanism; 301. Mounting frame; 302. Threaded rod II; 303. Threaded block; 304. Joint shaft; 305. Connecting rod; 306. Joint shaft II; 307. Locking block; 308. Guide groove; 309. Support block; 310. Locking block II. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 As shown, this utility model is an automatic tension adjustment device for contact wires, including several base plates 1. Several support columns 101 are fixedly connected to the top outer wall of the base plate 1. Several fixing frames 102 are fixedly connected to the outer wall of the left support column 101. Several guide wheels 103 are rotatably connected to the inner wall of the fixing frame 102. The guide wheels 103 limit the wire 211 to prevent the wire 211 from moving out of the predetermined position. An adjustment mechanism 2 is provided on the outer wall of the left support column 101.

[0030] The adjusting mechanism 2 includes a fixed plate 201, which is fixedly connected to the outer wall of the left support column 101. A support frame 202 is fixedly connected to the bottom outer wall of the fixed plate 201. A threaded rod 203 is rotatably connected to the inner wall of the support frame 202. When the threaded rod 203 rotates in the support frame 202, it will not swing, thus maintaining stable operation. A support plate 204 is threadedly connected to the outer wall of the threaded rod 203. A mounting plate 205 is fixedly connected to the top outer wall of the support plate 204. When the threaded rod 203 rotates, it will cause the support plate 204 to move, and when the support plate 204 moves, it will move the mounting plate 205 along with it. The movement enables the transfer of kinetic energy between parts. The inner wall of the fixed plate 201 is provided with a sliding groove 206, and a slider 207 is slidably connected to the inner wall of the sliding groove 206. The outer wall of the slider 207 is fixedly connected to the outer wall of the mounting plate 205. When the mounting plate 205 moves, it will carry the slider 207 to slide in the sliding groove 206. The sliding groove 206 limits the slider 207 to prevent it from swinging when it moves. The inner wall of the mounting plate 205 is provided with a circular groove 208, and a sliding rod 209 is slidably connected to the inner wall of the circular groove 208. When the sliding rod 209 slides in the circular groove 208, the sliding rod 209 will not wobble, so that the sliding rod 209 keeps moving horizontally.

[0031] A spring 210 is fitted onto the outer wall of the sliding rod 209. A wire 211 is fixedly connected to the outer wall of the sliding rod 209 near the fixing frame 102. The outer wall of the wire 211 contacts the outer wall of the guide wheel 103. When the spring 210 is compressed on the sliding rod 209, the spring 210 will not be misaligned, thus maintaining normal operation. A slide rail 212 is fixedly connected to the outer wall of the left support column 101. The inner wall of the slide rail 212 is slidably connected to the outer wall of the wire 211. A fixing mechanism 3 is provided on the inner wall of the right support column 101. When the wire 211 slides in the slide rail 212, the guide wheel 211 is fixedly connected to the guide wheel 103. The wire 211 will not wobble, keeping the wire 211 moving along a predetermined trajectory. The fixing mechanism 3 includes a mounting frame 301, with the inner wall of the right support column 101 fixedly connected to the outer wall of the mounting frame 301. The inner wall of the mounting frame 301 is rotatably connected to a threaded rod 302, and the outer wall of the threaded rod 302 is threadedly connected to a threaded block 303. When the threaded rod 302 rotates in the mounting frame 301, the threaded rod 302 will not wobble, keeping the threaded rod 302 rotating smoothly. At the same time, when the threaded rod 302 rotates, it will cause the threaded block 303 to move, completing the kinetic energy transfer between the parts.

[0032] A joint shaft 304 is fixedly connected to the outer wall of the threaded block 303. A connecting rod 305 is rotatably connected to the outer wall of the joint shaft 304. A second joint shaft 306 is rotatably connected to the inner wall of the end of the connecting rod 305 away from the joint shaft 304. When the threaded block 303 moves, it will move the joint shaft 304. Then, when the joint shaft 304 moves, it will move the connecting rod 305 in an arc. At the same time, the connecting rod 305 will move the second joint shaft 306, completing the kinetic energy transfer process between the parts. A locking block 307 is fixedly connected to the outer wall of the second joint shaft 306. A guide groove 308 is opened on the inner wall of the right support column 101. A support block 309 is slidably connected to the inner wall of the guide groove 308. When the joint shaft 306 moves, it will move the locking block 307. Then the locking block 307 will slide the support block 309 in the guide groove 308. The guide groove 308 limits the support block 309 to prevent it from swinging when it moves. The bottom outer wall of the support block 309 is fixedly connected to the top outer wall of the locking block 307. A locking block 310 is fixedly connected to the outer wall of the right support column 101. When the locking block 307 moves, it will clamp the wire 211 on the locking block 310 to prevent the wire 211 from becoming loose during use.

[0033] One specific application of this embodiment is:

[0034] When the operator needs to use the equipment, first, the wire 211 is passed through the middle of the multiple guide wheels 103, and then the wire 211 is passed through the slide rail 212. After the wire 211 is passed through, one end of the wire 211 is placed in the second locking block 310. After the wire 211 is placed, the operator rotates the second threaded rod 302. When the second threaded rod 302 rotates, the threaded block 303 moves. When the threaded block 303 moves, it moves the joint shaft 304. Then, the joint shaft 304 moves the connecting rod 305 in an arc. When the connecting rod 305 moves, it moves the second joint shaft 306. Shaft 2 306 moves along with locking block 307. As locking block 307 moves, it slides support block 309 in guide groove 308. Simultaneously, locking block 307 clamps wire 211 onto locking block 2 310, facilitating quick fixation of wire 211 by the operator and preventing it from loosening or falling off during use. Once wire 211 is fixed, it can be used. During use, the tension of wire 211 changes due to temperature. When the tension is low, wire 211 will slack off. When wire 211 slacks off, spring 210 will compress sliding rod 209. The sliding rod 209 slides in the circular groove 208. As the sliding rod 209 moves, it pulls the wire 211, causing the wire 211 to slide in the slide rail 212. Simultaneously, the wire 211 slides between multiple guide wheels 103, which rotate due to friction. As the wire 211 moves, its tension changes. When the tension of the wire 211 balances with the elastic force of the spring 210, the wire 211 is straightened, maintaining a suitable tension. This effectively and automatically adjusts the tension of the wire 211, preventing it from becoming too high or too low. During use, the threaded rod can be rotated. 203. When the threaded rod 203 rotates, the support plate 204 will move. When the support plate 204 moves, it will move the mounting plate 205. At the same time, the mounting plate 205 will slide the slider 207 in the slide groove 206. When the mounting plate 205 moves, it will compress the spring 210. When the spring 210 is compressed, it will release the elastic force to the sliding rod 209. Since the length of the wire 211 is fixed, the sliding rod 209 cannot move. This allows the mounting plate 205 to compress the spring 210 in advance, which makes it convenient for the operator to adjust the tension threshold according to the usage environment and improves the adaptability of the equipment.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic tension adjustment device for overhead contact wires, comprising several base plates (1), characterized in that: The top outer wall of the base plate (1) is fixedly connected to several support columns (101), and the outer wall of the support column (101) on the left side is fixedly connected to several fixing frames (102). The inner wall of the fixing frame (102) is rotatably connected to several guide wheels (103), and the outer wall of the support column (101) on the left side is provided with an adjustment mechanism (2). The adjustment mechanism (2) includes a fixed plate (201), the outer wall of the support column (101) on the left side is fixedly connected to the outer wall of the fixed plate (201), the bottom outer wall of the fixed plate (201) is fixedly connected to a support frame (202), the inner wall of the support frame (202) is rotatably connected to a threaded rod (203), the outer wall of the threaded rod (203) is threadedly connected to a support plate (204), the top outer wall of the support plate (204) is fixedly connected to an mounting plate (205), the inner wall of the fixed plate (201) is provided with a sliding groove (206), the inner wall of the sliding groove (206) is slidably connected to a slider (207), the outer wall of the slider (207) is fixedly connected to the outer wall of the mounting plate (205), the inner wall of the mounting plate (205) is provided with a circular groove (208), the inner wall of the circular groove (208) is slidably connected to a sliding rod (209).

2. The contact wire tension automatic adjustment device according to claim 1, characterized in that, A spring (210) is fitted on the outer wall of the sliding rod (209). A wire (211) is fixedly connected to the outer wall of the sliding rod (209) near the fixing frame (102). The outer wall of the wire (211) is in contact with the outer wall of the guide wheel (103). A slide rail (212) is fixedly connected to the outer wall of the support column (101) on the left side. The inner wall of the slide rail (212) is slidably connected to the outer wall of the wire (211). A fixing mechanism (3) is provided on the inner wall of the support column (101) on the right side.

3. The automatic tension adjustment device for contact wires according to claim 2, characterized in that, The fixing mechanism (3) includes a mounting frame (301), which is fixedly connected to the inner wall of the support column (101) on the right side and the outer wall of the mounting frame (301).

4. The contact wire tension automatic adjustment device according to claim 3, characterized in that, The inner wall of the mounting bracket (301) is rotatably connected to a threaded rod two (302), and the outer wall of the threaded rod two (302) is threadedly connected to a threaded block (303).

5. The contact wire tension automatic adjustment device according to claim 4, characterized in that, The outer wall of the threaded block (303) is fixedly connected to a joint shaft (304), and the outer wall of the joint shaft (304) is rotatably connected to a connecting rod (305).

6. The contact wire tension automatic adjustment device according to claim 5, characterized in that, The inner wall of the end of the connecting rod (305) away from the joint shaft (304) is rotatably connected to the second joint shaft (306), and the outer wall of the second joint shaft (306) is fixedly connected to the locking block (307).

7. The contact wire tension automatic adjustment device according to claim 6, characterized in that, A guide groove (308) is provided on the inner wall of the support column (101) located on the right side, and a support block (309) is slidably connected to the inner wall of the guide groove (308).

8. The contact wire tension automatic adjustment device according to claim 7, characterized in that, The bottom outer wall of the support block (309) is fixedly connected to the top outer wall of the card block (307), and the outer wall of the support column (101) on the right side is fixedly connected to the card block two (310).

Images