Overhaul-free busbar device

Abstract

The utility model discloses a maintenance-free busbar device, which comprises a busbar body and an intermediate joint, the busbar body is of a symmetrical structure, and the intermediate joint is of an M-shaped integrated structure. A plurality of first connecting holes are formed in the clamping walls of the two ends of the busbar body, second connecting holes in one-to-one correspondence with the first connecting holes are formed in the side wall of the middle connector, and the busbar body penetrates through the first connecting holes and the second connecting holes through rivets to be fixedly connected with the middle connector. According to the bus-bar device without maintenance, a combined positioning structure of the first positioning bulge and the second positioning bulge is adopted, so that the stability is good; and moreover, the riveted integrated intermediate joint is adopted, so that the intermediate joint cannot be detached after being mounted, does not need to be overhauled and is high in mechanical strength.

Description

Technical Field

[0001] The utility model relates to the technical field of rigid contact network, in particular to a busbar device which does not require maintenance. Background Art

[0002] In recent years, with the rapid development of social economy, higher requirements have been put forward for rail transit. In order to adapt to the continuous speed increase of rail under the new situation, higher requirements have also been put forward for the technical requirements of rigid contact network components.

[0003] The busbar is located above the line and is a key component of the rigid contact network suspension. It is used to clamp the fixed contact wire and carry and transmit current. The contact wire is clamped by a segmented busbar. When the busbar connection part is affected by the pantograph, the middle joint is likely to cause the entire suspension system components to loosen, thus posing a great threat to the safety of the traction power supply system.

[0004] In the prior art, the middle joint is mostly a split design, and the middle joint is fastened to the busbar by 18 bolts. The traditional busbar is made of aluminum, which has poor mechanical strength. The screw holes of the busbar need to be inlaid with steel to meet industry requirements. In addition, when the busbar is used for a long time, there is also the problem of screw hole failure. There are problems such as cumbersome processing methods, poor stability, and the need for regular maintenance. Utility Model Content

[0005] The utility model aims to provide a busbar device which does not require maintenance, adopts a first positioning protrusion and a second positioning protrusion to jointly position the structure, and has good stability; and adopts a riveted one-piece intermediate joint, which cannot be disassembled after installation, does not require maintenance, and has high mechanical strength.

[0006] To achieve the above-mentioned purpose, the utility model provides a maintenance-free busbar device, comprising a busbar body and an intermediate joint, wherein the busbar body is a symmetrical structure, and the intermediate joint is an M-shaped integrated structure;

[0007] The two end walls of the bus body are each provided with a plurality of first connection holes, the side wall of the intermediate joint is provided with second connection holes corresponding to the first connection holes one by one, and the bus body is fixedly connected to the intermediate joint by rivets penetrating the first connection holes and the second connection holes.

[0008] Preferably, a first groove is provided at the top of the intermediate joint, and the cross-section of the first groove is an arc structure. The top surface of the inner wall of the bus body is provided with a first positioning protrusion corresponding to the first groove, and the first positioning protrusion is arranged at the center position of the bus body.

[0009] Preferably, the inner surface of the clamping wall of the busbar body is further provided with a plurality of second positioning protrusions, and the outer side wall of the intermediate joint is provided with second grooves corresponding to the second positioning protrusions, and the cross section of the second groove is a tooth-shaped structure.

[0010] Preferably, the rivet is made of stainless steel, and the diameter of the rivet is 12 mm.

[0011] Preferably, the busbar body is made of aluminum-containing metal.

[0012] Preferably, the first connection holes are arranged in a rectangular array.

[0013] Therefore, the utility model adopts the above-mentioned busbar device that does not require maintenance, and the beneficial effects are as follows:

[0014] (1) The utility model adopts a first positioning protrusion with an arc structure and a second positioning protrusion with a toothed structure for joint positioning. The intermediate joint is an integrated structure. Compared with the traditional split intermediate joint, the docking is precise, and the bus and the intermediate joint are connected by rivets, which has good stability.

[0015] (2) The utility model adopts a riveted one-piece middle joint, using stainless steel rivets, which cannot be disassembled after installation, does not require maintenance, and has high mechanical strength.

[0016] (3) The utility model adopts rivet connection. Compared with the traditional bolt connection method, it is only necessary to drill holes in the busbar wall. The busbar does not need to be inlaid with stainless steel screw holes, and the processing method is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a busbar device that does not require maintenance according to the utility model;

[0018] Figure 2 It is a cross-sectional view of an embodiment of a busbar device that does not require maintenance according to the utility model;

[0019] Figure 3 It is a structural schematic diagram of a busbar body of an embodiment of a busbar device that does not require maintenance according to the utility model;

[0020] Figure 4 The utility model is a schematic structural diagram of an intermediate joint of a maintenance-free busbar device embodiment.

[0021] Reference numerals

[0022] 1. Bus body; 2. Intermediate joint; 3. First connecting hole; 4. Second connecting hole; 5. Rivet; 6. First groove; 7. First positioning protrusion; 8. Second positioning protrusion; 9. Second groove. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] As shown in the figure, a maintenance-free busbar device includes a busbar body 1 and an intermediate joint 2. The busbar body 1 is a symmetrical structure, and the intermediate joint 2 is an M-shaped integrated structure. The two end walls of the busbar body 1 are provided with a plurality of first connection holes 3, and the side wall of the intermediate joint 2 is provided with second connection holes 4 corresponding to the first connection holes 3. The busbar body 1 is fixedly connected to the intermediate joint 2 after the rivets 5 penetrate the first connection holes 3 and the second connection holes 4.

[0026] The first connection holes 3 are arranged in a rectangular array. In this embodiment, the left side walls at both ends of the busbar body 1 are provided with four first connection holes 3, and the right side walls are symmetrically provided with four first connection holes 3; the two side walls of the middle joint 2 are correspondingly provided with eight second connection holes 4, and the arrangement is a 4×2 rectangular array.

[0027] In actual use, the middle joint 2 is inserted into the first busbar, and the rivet 5 is inserted into the first connection hole 3 on the left, the second connection hole 4 on the left, the second connection hole 4 on the right, and the first connection hole 3 on the right in sequence, and fixed by a riveting machine, and then the second busbar body 1 is inserted and fixed with the rivet 5. The rivet 5 is made of stainless steel, and the diameter of the rivet 5 is 12 mm. The busbar body 1 is made of aluminum-containing metal to ensure the mechanical strength of the rivet 5 connection.

[0028] The top of the intermediate joint 2 is provided with a first groove 6, the cross section of which is an arc structure, the top surface of the inner wall of the busbar body 1 is provided with a first positioning protrusion 7 corresponding to the first groove 6, and the first positioning protrusion 7 is arranged at the center of the busbar body 1. The inner surface of the clamping wall of the busbar body 1 is also provided with a plurality of second positioning protrusions 8, and the outer side wall of the intermediate joint 2 is provided with a second groove 9 corresponding to the second positioning protrusion 8, and the cross section of the second groove 9 is a tooth-shaped structure.

[0029] In this embodiment, three second positioning protrusions 8 are provided, which are respectively located at the upper, middle and lower positions of the clamping wall of the busbar body 1. In actual use, when the intermediate joint 2 is inserted into the busbar body 1, the first groove 6 fits with the first positioning protrusion 7, and the second groove 9 meshes with the second positioning protrusion 8. This avoids misalignment between the first connection hole 3 and the second connection hole 4, and ensures the accuracy of the connection.

[0030] Therefore, the utility model adopts the above-mentioned busbar device that does not require maintenance, adopts a joint positioning structure of the first positioning protrusion and the second positioning protrusion, and has good stability; and adopts a riveted one-piece intermediate joint, which cannot be disassembled after installation, does not require maintenance, and has high mechanical strength.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A maintenance-free busbar device, characterized in that: It includes a busbar body and an intermediate joint, wherein the busbar body is a symmetrical structure and the intermediate joint is an M-shaped integrated structure; The two end walls of the bus body are each provided with a plurality of first connection holes, the side wall of the intermediate joint is provided with second connection holes corresponding to the first connection holes one by one, and the bus body is fixedly connected to the intermediate joint by rivets penetrating the first connection holes and the second connection holes.

2. A maintenance-free busbar device according to claim 1, characterized in that: A first groove is arranged on the top of the middle joint, and the cross section of the first groove is an arc structure. A first positioning protrusion corresponding to the first groove is arranged on the top surface of the inner wall of the bus body, and the first positioning protrusion is arranged at the center position of the bus body.

3. A maintenance-free busbar device according to claim 2, characterized in that: The inner surface of the clamping wall of the busbar body is also provided with a plurality of second positioning protrusions, and the outer side wall of the intermediate joint is provided with second grooves corresponding to the second positioning protrusions, and the cross section of the second groove is a tooth-shaped structure.

4. A maintenance-free busbar device according to claim 3, characterized in that: The rivet is made of stainless steel, and the diameter of the rivet is 12 mm.

5. A maintenance-free busbar device according to claim 4, characterized in that: The busbar body is made of aluminum-containing metal material.

6. A maintenance-free busbar device according to claim 5, characterized in that: The first connection holes are arranged in a rectangular array.

Images