High-fatigue-resistance elastic sling clamp device

Abstract

The utility model relates to the technical field of elastic sling clamps, in particular to a high-fatigue-resistance elastic sling clamp device which comprises an upper clamping plate, a middle clamping plate, a lower clamping plate and connecting pieces, and the upper clamping plate, the middle clamping plate and the lower clamping plate are installed together through the connecting pieces. A third groove used for containing the elastic sling is formed in the side, close to the lower clamping plate, of the middle clamping plate, a fourth groove used for containing the elastic sling is formed in the side, close to the middle clamping plate, of the lower clamping plate, the third groove and the fourth groove are matched to clamp the elastic sling, and the third groove and the fourth groove are both obliquely arranged. The inclination direction of the third groove is the same as that of the fourth groove, and the middle clamping plate and the lower clamping plate are designed to be slopes with the angles of 3 degrees, so that the transition of the elastic sling clamp is smoother, the situation that the elastic sling is locally bent is avoided, the fatigue resistance of the elastic sling is further improved, and the stability and reliability of a contact network system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic sling clamps, in particular to a high fatigue-resistant elastic sling clamp device. Background Art

[0002] The working principle of the elastic sling clamp device is to tightly connect the upper splint, the lower splint with ears and the catenary conductor through a fastening bolt assembly, and at the same time anchor the end of the elastic sling to the catenary conductor by using a terminal anchor clamp. The traditional elastic sling clamp device bears dynamic loads for a long time during operation, and due to the large rigidity of the carrier cable, the elastic sling may be locally bent at the clamp part, which may not only reduce the fatigue life of the elastic sling, but also cause potential safety hazards such as poor contact or wire breakage. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is: in order to overcome the problems that in the prior art, the elastic sling clamp device bears dynamic loads for a long time during operation, and due to the large rigidity of the carrier cable, the elastic sling may be locally bent at the clamp part, which may not only reduce the fatigue life of the elastic sling, but also cause potential safety hazards such as poor contact or wire breakage, a high fatigue-resistant elastic sling clamp device is provided.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a high fatigue-resistant elastic sling clamp device, including an upper splint, a middle splint, a lower splint and a connecting piece, the upper splint, the middle splint and the lower splint are installed together through the connecting piece, a first fixing area for placing the carrier cable is formed between the upper splint and the middle splint, and a second fixing area for placing the elastic sling is formed between the middle splint and the lower splint;

[0005] A first groove for placing the carrier cable is opened on one side of the upper splint close to the middle splint, a second groove for placing the carrier cable is opened on one side of the middle splint close to the upper splint, the first groove and the second groove are matched, and the first groove and the second groove cooperate to clamp the carrier cable;

[0006] A third groove for placing the elastic sling is opened on one side of the middle splint close to the lower splint, a fourth groove for placing the elastic sling is opened on one side of the lower splint close to the middle splint, the third groove and the fourth groove cooperate to clamp the elastic sling, both the third groove and the fourth groove are arranged obliquely, and the inclination directions of the third groove and the fourth groove are the same. When anti-slip teeth are arranged to improve the sliding load performance of the elastic sling clamp device and a transition groove is designed on the lower splint to improve the fatigue resistance of the elastic sling, slopes with an angle of 3° are respectively designed for the middle splint and the lower splint to make the transition of the elastic sling clamp smoother, avoid the situation of local bending of the elastic sling, and further improve the fatigue resistance of the elastic sling, so as to improve the stability and reliability of the catenary system.

[0007] Further includes a third groove sloping downward from left to right and a fourth groove sloping downward from left to right.

[0008] Further includes that the inclination angles of both the third groove and the fourth groove are 3°.

[0009] Further includes that anti-slip teeth are arranged in both the third groove and the fourth groove.

[0010] Further includes that transition bevels are provided at both ends of the fourth groove.

[0011] Further includes that a positioning portion protrudes on the middle clamping plate, and a notch matching the connecting member is provided on the positioning portion, and the connecting member is fitted in the notch.

[0012] The beneficial effects of the present utility model are as follows: A high fatigue-resistant elastic sling clamp device provided by the present utility model, when anti-slip teeth are arranged to improve the sliding load performance of the elastic sling clamp device and transition bevels are designed on the lower clamping plate to improve the fatigue resistance of the elastic sling, slopes with an angle of 3° are respectively designed for the middle clamping plate and the lower clamping plate, so that the transition of the elastic sling clamp is smoother, avoiding the situation of local bending of the elastic sling, further improving the fatigue resistance of the elastic sling, and improving the stability and reliability of the catenary system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a top view structural schematic diagram of the present utility model;

[0016] Figure 3 is the present utility model Figure 2 is a cross-sectional structural schematic diagram at A-A in the present utility model;

[0017] Figure 4 is a front view structural schematic diagram of the present utility model;

[0018] Figure 5 is a three-dimensional structural schematic diagram of the lower clamping plate of the present utility model;

[0019] Figure 6 is a bottom view structural schematic diagram of the middle clamping plate of the present utility model.

[0020] In the figure: 1. Upper clamping plate, 11. First groove, 2. Middle clamping plate, 21. Second groove, 22. Third groove, 23. Positioning part, 231. Notch, 3. Lower clamping plate, 31. Fourth groove, 311. Transition bevel groove, 4. Connecting piece, 5. First fixing area, 6. Second fixing area, 7. Carrier cable, 8. Elastic suspension cable, 9. Anti-slip teeth. Specific embodiments

[0021] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only schematically showing the basic structure of the present utility model, so they only show the components related to the present utility model.

[0022] As Figure 1 is a schematic structural diagram of the present utility model. A high fatigue-resistant elastic suspension cable clamp device includes an upper clamping plate 1, a middle clamping plate 2, a lower clamping plate 3 and a connecting piece 4. The upper clamping plate 1, the middle clamping plate 2 and the lower clamping plate 3 are installed together through the connecting piece 4. A first fixing area 5 for placing the carrier cable 7 is formed between the upper clamping plate 1 and the middle clamping plate 2, and a second fixing area 6 for placing the elastic suspension cable 8 is formed between the middle clamping plate 2 and the lower clamping plate 3. The connecting piece 4 is a threaded connecting piece, such as a bolt, etc.;

[0023] As Figure 1 、 Figure 3 、 Figure 4 As shown, a first groove 11 for placing the carrier cable 7 is formed on the side of the upper clamping plate 1 close to the middle clamping plate 2, and a second groove 21 for placing the carrier cable 7 is formed on the side of the middle clamping plate 2 close to the upper clamping plate 1. The first groove 11 and the second groove 21 are matched. The first groove 11 and the second groove 21 cooperate to clamp the carrier cable 7. The first groove 11 and the second groove 21 are arc-shaped grooves. After the first groove 11 and the second groove 21 cooperate to clamp the carrier cable 7, the first groove 11 and the second groove 21 can be arranged coaxially or approximately coaxially;

[0024] As Figure 1 、 Figure 3 、 Figure 4 、 Figure 5As shown in the figure, a third groove 22 for placing the elastic sling 8 is formed on one side of the middle splint 2 close to the lower splint 3, and a fourth groove 31 for placing the elastic sling 8 is formed on one side of the lower splint 3 close to the middle splint 2. The third groove 22 and the fourth groove 31 cooperate to clamp the elastic sling 8. Both the third groove 22 and the fourth groove 31 are inclined, and the inclination directions of the third groove 22 and the fourth groove 31 are the same. The third groove 22 and the fourth groove 31 are arc-shaped grooves; the third groove 22 slopes downward from left to right, and the fourth groove 31 slopes downward from left to right; the inclination angles of both the third groove 22 and the fourth groove 31 are 3°. Ramps with an angle of 3° are designed for the middle splint 2 and the lower splint 3, so that the transition of the elastic sling clamp is smoother, avoiding local bending of the elastic sling 8, further improving the fatigue resistance of the elastic sling 8, and improving the stability and reliability of the catenary system.

[0025] As Figure 4 , Figure 5 , Figure 6 shown, anti-slip teeth 9 are arranged in both the third groove 22 and the fourth groove 31; transition bevels 311 are formed at both ends of the fourth groove 31. Arranging the anti-slip teeth 9 improves the sliding load performance of the elastic sling clamp device, and designing the transition bevel 311 on the lower splint 3 improves the fatigue resistance of the elastic sling.

[0026] As Figure 1 , Figure 3 , Figure 4 , Figure 6 shown, a positioning portion 23 protrudes from the middle splint 2, and a notch 231 matching the connecting member 4 is formed on the positioning portion 23. The connecting member 4 is fitted in the notch 231 to ensure accurate positioning of the connecting member 4.

[0027] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A highly fatigue-resistant elastic sling wire clamp device, characterized in that: The invention comprises an upper splint (1), a middle splint (2), a lower splint (3) and a connecting piece (4); the upper splint (1), the middle splint (2) and the lower splint (3) are mounted together via the connecting piece (4); a first fixing area (5) for placing a load-bearing cable (7) is formed between the upper splint (1) and the middle splint (2); and a second fixing area (6) for placing an elastic sling (8) is formed between the middle splint (2) and the lower splint (3); A first groove (11) for placing a load-bearing cable (7) is provided on the side of the upper clamping plate (1) close to the middle clamping plate (2), and a second groove (21) for placing a load-bearing cable (7) is provided on the side of the middle clamping plate (2) close to the upper clamping plate (1), wherein the first groove (11) and the second groove (21) match each other, and the first groove (11) and the second groove (21) cooperate to clamp the load-bearing cable (7); A third groove (22) for placing an elastic sling (8) is provided on a side of the middle clamping plate (2) close to the lower clamping plate (3), and a fourth groove (31) for placing an elastic sling (8) is provided on a side of the lower clamping plate (3) close to the middle clamping plate (2). The third groove (22) and the fourth groove (31) cooperate to clamp the elastic sling (8). The third groove (22) and the fourth groove (31) are both arranged in an inclined manner, and the inclination direction of the third groove (22) is the same as the inclination direction of the fourth groove (31).

2. A highly fatigue-resistant elastic sling wire clamp device as claimed in claim 1, characterized in that: The third groove (22) is inclined downward from left to right, and the fourth groove (31) is inclined downward from left to right.

3. A highly fatigue-resistant elastic sling wire clamp device as claimed in claim 2, characterized in that: The inclination angle of the third groove (22) and the inclination angle of the fourth groove (31) are both 3°.

4. A highly fatigue-resistant elastic sling wire clamp device as claimed in claim 1, characterized in that: Anti-slip teeth (9) are arranged in the third groove (22) and the fourth groove (31).

5. The highly fatigue-resistant elastic sling wire clamp device according to claim 1, characterized in that: Transition grooves (311) are formed at both ends of the fourth groove (31).

6. A highly fatigue-resistant elastic sling wire clamp device as claimed in claim 1, characterized in that: A positioning portion (23) is protruded from the middle clamping plate (2), a notch (231) matching the connecting member (4) is formed on the positioning portion (23), and the connecting member (4) is embedded in the notch (231).

Images