CN211684761U - Cantilever type suspension fixing structure - Google Patents
Cantilever type suspension fixing structure Download PDFInfo
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- CN211684761U CN211684761U CN202020122010.3U CN202020122010U CN211684761U CN 211684761 U CN211684761 U CN 211684761U CN 202020122010 U CN202020122010 U CN 202020122010U CN 211684761 U CN211684761 U CN 211684761U
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- cantilever
- suspension
- fixedly connected
- anchor bolt
- insulator
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Abstract
A cantilever type suspension fixing structure comprises an anchor bolt, wherein a flat washer is fixed at a rigid suspension part by the anchor bolt, a cantilever is suspended and fixed on the flat washer, the cantilever is connected with a rod type insulator through a fixedly connected suspension column cantilever base, the rear end of the rod type insulator is connected with the cantilever, the tail part of the cantilever is fixedly connected with a busbar positioning wire clamp, and the tail end of the cantilever is sleeved with a pipe cap; the cantilever is hung and fixedly connected with a ground wire mounting base, and the mounting base is connected with a ground wire clamp. The cantilever davit passes through 4 sets of M16 chemical crab-bolts and is connected with the tunnel top, adjusts through adjusting nut during the installation, ensures to hoist perpendicular rail surface, and the gradient error generally should not be greater than 1 to ensure horizontal cantilever and rail surface at ordinary times, reach the even wearing and tearing of contact wire and pantograph, horizontal cantilever length generally guarantees that pull-out value adjustment targets in place the back, exposes 30~100mm and is suitable (not contain pipe cap thickness), and the insulator installation is just right. The fastener is complete, and the installation is firm reliable.
Description
Technical Field
The utility model belongs to the technical field of hang the contact net in the tunnel, concretely relates to cantilever type hangs fixed knot and constructs.
Background
The overhead line system is an important component of an urban rail transit power supply system, is a special form power transmission line which is arranged along a rail transit line and supplies power to an electric locomotive, is a special power supply device for supplying power to the electric locomotive or an electric locomotive group for rail transit and has no standby power supply equipment. The contact net can always keep normal and stable contact current collection in the high-speed running of the locomotive, has enough wear resistance and good conductivity, has the service life as long as possible, strives for simple structure, and stable performance is easy to construct and maintain.
And a rigid-flexible transition system is arranged at the tunnel portal where the flexible suspension and the rigid suspension are connected. The pantograph suspension device is a key part for realizing seamless connection between the rigid suspension and the flexible suspension, and ensures stable transition of the pantograph between the two suspensions. The main components comprise a chemical anchor bolt, a wrist support device, a positioning device, a contact line, an overhead ground wire, a rigid-flexible transition element and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a cantilever type suspension fixing structure which is stable and reliable in installation.
In order to realize the purpose, the utility model discloses a technical scheme is:
a cantilever type suspension fixing structure comprises an anchor bolt (1) and is characterized in that the anchor bolt (1) fixes a flat washer (2) at a rigid suspension position, a cantilever crane (3) is fixed on the flat washer (2), the cantilever crane (3) is connected with a rod type insulator (5) through a fixedly connected suspension column cantilever base (4), the rear end of the rod type insulator (5) is connected with a cantilever (6), the tail part of the cantilever (6) is fixedly connected with a busbar positioning wire clamp (7), and the tail end of the cantilever (6) is sleeved with a pipe cap (8); the cantilever crane (3) is fixedly connected with a ground wire mounting base (10), and the mounting base (10) is connected with a ground wire clamp (9).
The inclination of the cantilever crane (3) is less than 1 degree.
And after the pulling value of the cantilever (6) is adjusted in place, the cantilever is exposed for 30-100 mm.
The anchor bolt (1) is a 4-sleeve M16 chemical anchor bolt.
The connection is in a bolt, pin and welding mode.
The utility model has the advantages that:
the cantilever type suspension mode has the advantages that the structure is stable after fixation, the insulator is installed correctly, and the contact line and the pantograph are uniformly worn at ordinary times by the aid of the horizontal cantilever and the rail surface.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is an anchor bolt; 2 is a flat washer; 3 is a cantilever hanging post; 4 is a hanging column cantilever base; 5 is a rod insulator; 6 is a wrist arm; 7 is a busbar positioning wire clamp; 8 is a pipe cap; 9 is a ground wire clamp; and 10 is a ground wire mounting base.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a cantilever type suspension fixing structure comprises an anchor bolt (1), and is characterized in that the anchor bolt (1) fixes a flat washer (2) at a rigid suspension position, a cantilever crane (3) is fixed on the flat washer (2), the cantilever crane (3) is connected with a rod type insulator (5) through a fixedly connected suspension column cantilever base (4), the rear end of the rod type insulator (5) is connected with a cantilever (6), the tail part of the cantilever (6) is fixedly connected with a busbar positioning wire clamp (7), and the tail end of the cantilever (6) is sleeved with a pipe cap (8); the cantilever crane (3) is fixedly connected with a ground wire mounting base (10), and the mounting base (10) is connected with a ground wire clamp (9).
The inclination of the cantilever crane (3) is less than 1 degree.
And after the pulling value of the cantilever (6) is adjusted in place, the cantilever is exposed for 30-100 mm.
The anchor bolt (1) is a 4-sleeve M16 chemical anchor bolt.
The utility model discloses an use:
considering the problem that the insulation distance between a rigid suspension point spanned by a flexible lower anchor and a flexible suspension is not enough, most of domestic supporting suspension devices at the rigid-flexible transition position mostly adopt a cantilever type structure, a cantilever suspension post is connected with a tunnel top through 4 sets of M16 chemical anchor bolts, and the vertical rail surface is ensured to be hoisted through adjusting a nut during installation, the inclination error is generally not more than 1 degree, so that the contact line and a pantograph are uniformly worn when the horizontal cantilever and the rail surface are normal, the length of the horizontal cantilever generally ensures that after a pull-out value is adjusted in place, the exposed part is 30-100 mm (the thickness of a pipe cap is not contained), the insulator insulation resistance test is qualified, and a cement pouring part cannot be loosened and has no radiation cracks. The insulator is installed correctly, the surface of the insulator glaze is smooth and clean, the defects of cracks, glaze shortage, spots, bubbles and the like are avoided, and the total area of the stripped insulator glaze is not more than 30mm2. The fastener is complete, and the installation is firm reliable.
Claims (4)
1. A cantilever type suspension fixing structure comprises an anchor bolt (1) and is characterized in that the anchor bolt (1) fixes a flat washer (2) at a rigid suspension position, a cantilever crane (3) is fixed on the flat washer (2), the cantilever crane (3) is connected with a rod type insulator (5) through a fixedly connected suspension column cantilever base (4), the rear end of the rod type insulator (5) is connected with a cantilever (6), the tail part of the cantilever (6) is fixedly connected with a busbar positioning wire clamp (7), and the tail end of the cantilever (6) is sleeved with a pipe cap (8); the cantilever crane (3) is fixedly connected with a ground wire mounting base (10), and the mounting base (10) is connected with a ground wire clamp (9).
2. A cantilever suspension fixation structure according to claim 1, wherein the cantilever crane (3) inclination is less than 1 °.
3. The cantilever type suspension fixing structure as claimed in claim 1, wherein the pull-out value of the cantilever (6) is adjusted to be in place and then exposed for 30-100 mm.
4. A cantilever suspension fixation structure according to claim 1, wherein said anchor (1) is a 4-way M16 chemical anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122010.3U CN211684761U (en) | 2020-01-19 | 2020-01-19 | Cantilever type suspension fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122010.3U CN211684761U (en) | 2020-01-19 | 2020-01-19 | Cantilever type suspension fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211684761U true CN211684761U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020122010.3U Active CN211684761U (en) | 2020-01-19 | 2020-01-19 | Cantilever type suspension fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211684761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112874387A (en) * | 2021-03-18 | 2021-06-01 | 浙江旺隆轨道交通设备有限公司 | Adjustable insulation suspension positioning device for rigid contact network in low-clearance tunnel |
| CN114655081A (en) * | 2022-03-28 | 2022-06-24 | 中铁十二局集团电气化工程有限公司 | Articulated electric split-phase construction method for overhead rigid contact network with speed of 160km per hour |
-
2020
- 2020-01-19 CN CN202020122010.3U patent/CN211684761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112874387A (en) * | 2021-03-18 | 2021-06-01 | 浙江旺隆轨道交通设备有限公司 | Adjustable insulation suspension positioning device for rigid contact network in low-clearance tunnel |
| CN114655081A (en) * | 2022-03-28 | 2022-06-24 | 中铁十二局集团电气化工程有限公司 | Articulated electric split-phase construction method for overhead rigid contact network with speed of 160km per hour |
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