Transition protection device for large-abrasion part of contact line of rigid contact net

Abstract

The utility model discloses a transition protection device for a heavily abraded part of a contact line of a rigid contact network, which is used in an abraded section of the heavily abraded part of the contact line of the contact network and is arranged on two sides of a busbar abraded section, and two groups of electric connecting wire clamps are arranged on two sides of the busbar abraded section. The outer sides of the two sets of electric connecting wire clamps are detachably connected with contact wire connector wire clamps which are arranged in an inclined mode respectively, the bottoms of the two sets of contact wire connector wire clamps are connected with the two ends of an auxiliary sliding way in a clamping mode, and the portion, between the two sets of contact wire connector wire clamps, of the auxiliary sliding way is lower than the bottom face of the busbar. The device is simple in structure, reasonable in design and novel and unique in thought, and two auxiliary slideways made of the same material as the contact line are introduced into the slightly lower position of the same plane of the contact line which is excessively abraded originally by installing the abrasion transition device to replace the function of the original contact line.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a transition protection device for areas of high wear on the contact wire of a rigid contact network. Background Technology

[0002] The existing method for addressing the issue of significant wear on the contact wires of rigid contact networks in urban rail transit involves partial or complete replacement of the worn contact wires in the busbars. This original approach is time-consuming, requires highly skilled personnel, is costly, and may disrupt the operation of urban rail transit the following day. The new approach significantly reduces the time required, requires less skilled personnel, and is less costly. Therefore, this application discloses a transition protection device for areas with significant wear on the contact wires of rigid contact networks. Utility Model Content

[0003] The purpose of this invention is to address existing problems by providing a transition protection device for areas of significant wear on the contact wire of a rigid contact network. This device solves the wear problem of the contact wire by modifying the original wear treatment methods.

[0004] This utility model is achieved through the following technical solution: a transition protection device for areas of significant wear on the contact wire of a rigid contact network, used in the wear section of the contact wire where wear is significant. The transition protection device is set on both sides of the wear section of the busbar. Two sets of electrical connection clamps are provided on both sides of the wear section of the busbar. The outer sides of the two sets of electrical connection clamps are detachably connected to inclined contact wire connector clamps. The two ends of the auxiliary slide are clamped at the bottom of the two sets of contact wire connector clamps. The auxiliary slide between the two sets of contact wire connector clamps is lower than the bottom surface of the busbar.

[0005] As a further improvement to the above solution, each set of electrical connection clamps includes two upper connectors and two lower connectors. The two upper connectors clamp the top of the busbar and the two lower connectors clamp the bottom of the busbar and are then fixed with horizontal screws. The upper and lower connectors on the same side are connected by vertical screws.

[0006] The upper connector includes two longitudinal connecting holes and two transverse connecting holes, and the lower connector includes a longitudinal through hole and two transverse connecting holes; the two sets of contact wire connector clamps are fixed by transverse screws in the transverse connecting holes on the outer side of the upper connector and transverse screws in the transverse connecting holes on the inner side of the lower connector, respectively.

[0007] The lower connector can be matched with upper connectors of different specifications by setting a longitudinal through hole; the two upper connectors and the two lower connectors are connected by horizontal and vertical screws to form an integral structure.

[0008] The end of the horizontal screw is sleeved with a contact wire connector clamp at intervals, and the end of the auxiliary slide is clamped between the contact wire connector clamps; the two contact wire connector clamps sleeved at intervals at the end of the horizontal screw clamp the end of the auxiliary slide, and the auxiliary slide is limited and fixed by clamping with the contact wire connector clamps.

[0009] As a further improvement to the above solution, the auxiliary slide includes an inclined portion clamped at the bottom of the contact wire connector clamp and a horizontal portion between the inclined portion, the angle between the inclined portion and the horizontal portion being determined by the length of the inclined portion and the vertical height of the inclined portion.

[0010] The inclined portion of the auxiliary slide is clamped between the contact wire connector clamps, and the horizontal portion of the auxiliary slide and the inclined portions at both ends are bent at a calculated angle.

[0011] As a further improvement to the above solution, the auxiliary slide is made of the same material as the contact line.

[0012] Compared with the prior art, this utility model has the following advantages: by setting up an auxiliary slide rail to replace the function of the original contact line, it completely replaces the original partial line replacement or whole anchor section line replacement technology, and is more economical, less time-consuming, and requires less technical skills from operators. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model installed on the busbar. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figures 1 to 2 As shown, a transition protection device for areas of significant wear on the contact wire of a rigid contact network is used in the worn section of the contact wire. The transition protection device is installed on both sides of the worn section of the busbar 7. Two sets of electrical connection clamps 1 are provided on both sides of the worn section of the busbar 7. The outer sides of the two sets of electrical connection clamps 1 are detachably connected to inclined contact wire connector clamps 5. The two ends of the auxiliary slide 6 are clamped at the bottom of the two sets of contact wire connector clamps 5. The auxiliary slide 6 between the two sets of contact wire connector clamps 5 is lower than the bottom surface of the busbar 7, thereby realizing the function of replacing the original contact wire.

[0017] Each set of electrical connection clamps includes two upper connectors and two lower connectors. The two upper connectors clamp the top of the busbar, and the two lower connectors clamp the bottom of the busbar and are fixed with horizontal screws 2. The upper connectors and lower connectors on the same side are connected by vertical screws 4.

[0018] The upper connector includes two longitudinal connecting holes or longitudinal through waist holes and two transverse connecting holes, and the lower connector includes a longitudinal through waist hole and two transverse connecting holes; the two sets of contact wire connector clamps 5 are fixed by transverse screws 2 in the transverse connecting holes on the outer side of the upper connector and transverse screws 2 in the transverse connecting holes on the inner side of the lower connector, respectively.

[0019] The lower connector can be matched with upper connectors of different specifications by setting a longitudinal through hole; the two upper connectors and the two lower connectors are connected by horizontal screw 2 and vertical screw 4 to form an integral structure.

[0020] The end of the horizontal screw 2 is sleeved with a contact wire connector clamp 5 at intervals, and the end of the auxiliary slide 6 is clamped between the contact wire connector clamps 5; the two contact wire connector clamps 5 sleeved at intervals at the end of the horizontal screw 2 clamp the end of the auxiliary slide 6, and the auxiliary slide 6 is limited and fixed by clamping with the contact wire connector clamps 5.

[0021] The auxiliary slide 6 includes an inclined portion clamped at the bottom of the contact wire connector clamp and a horizontal portion between the inclined portion. The angle between the inclined portion and the horizontal portion is determined by the length of the inclined portion and the vertical height of the inclined portion.

[0022] like Figure 1 As shown, the inclined portion of the auxiliary slide is clamped between the contact wire connector clamps, and the horizontal portion of the auxiliary slide and the inclined portions at both ends are bent at a calculated angle:

[0023] ∠CAD = ∠CAB + ∠BAD

[0024] cos∠CAB=AB / AC.

[0025] In this embodiment, the length AB is the measured value of 120mm, and the length of AC contact wire connector clamp 5 is 185mm.

[0026] We get: cos∠CAB = AB / AC

[0027] cos∠CAB=120 / 185

[0028] cos∠CAB=0.648468

[0029] ∠CAB=50°, ∠ACB=40°

[0030] By looking up the cosine function table, we can obtain the value of ∠CAB based on the cosine value. Finally, we get:

[0031] ∠CAD = ∠CAB + ∠BAD

[0032] ∠CAD = 50° + 90°

[0033] ∠CAD=140°

[0034] The bending angle of auxiliary slide 6 is calculated to be 140° using the law of cosines and the cosine function.

[0035] Calculations show that the original solution requires approximately 50,000 yuan per point, while the present invention requires approximately 5,000 yuan per point. The original solution takes 180-240 minutes per process, while the present invention takes less than 60 minutes per process. The original solution requires approximately 29 people per process, including at least 4 senior technicians, while the present invention only requires 5 people, including one intermediate technician. The technical requirements for operators are low, the time required is short, and the cost is greatly reduced.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rigid catenary contact line wear transition protection device, used in the wear section of the contact line where the wear is large, characterized in that, The transition protection device is arranged on both sides of the busbar wear section, and two groups of electric connection wire clamps are arranged on both sides of the busbar wear section.

2. The rigid catenary contact line wear transition protection device according to claim 1, characterized in that, Each group of the electric connection wire clamps comprises two upper connecting pieces and two lower connecting pieces, the two upper connecting pieces clamp the top of the busbar, the two lower connecting pieces clamp the lower part of the busbar, and the upper connecting pieces and the lower connecting pieces on the same side are connected through vertical screw rods.

3. The rigid catenary contact line wear transition protection device according to claim 2, characterized in that, The upper connecting piece comprises two longitudinal connecting holes and two transverse connecting holes, and the lower connecting piece comprises a longitudinal through waist hole and two transverse connecting holes; the two groups of contact wire joint wire clamps are fixed through the horizontal screw rods in the transverse connecting holes on the outer side of the upper connecting piece and the horizontal screw rods in the transverse connecting holes on the inner side of the lower connecting piece.

4. The rigid catenary contact line wear transition protection device according to claim 1, characterized in that, The auxiliary slide comprises an inclined part clamped at the bottom of the contact wire joint wire clamp and a horizontal part between the inclined parts, and the included angle between the inclined part and the horizontal part is determined by the length of the inclined part and the vertical height of the inclined part.

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