CN215398282U - Adjustable cantilever device for rigid contact net suspension system - Google Patents
Adjustable cantilever device for rigid contact net suspension system Download PDFInfo
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- CN215398282U CN215398282U CN202121787855.5U CN202121787855U CN215398282U CN 215398282 U CN215398282 U CN 215398282U CN 202121787855 U CN202121787855 U CN 202121787855U CN 215398282 U CN215398282 U CN 215398282U
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Abstract
The utility model relates to an adjustable cantilever device for a rigid contact net suspension system, which comprises a cantilever mechanism, an insulating part and a positioning wire clamp connecting plate which are connected in sequence; wherein cantilever mechanism includes: the base and the hinged support are connected through the hinge of the rotating shaft, and the top surface of the base is provided with an adjusting plate; the shape of the adjusting plate is designed such that: the distance from the outer side surface to the fourth through hole is gradually increased or decreased, and a plurality of constant-diameter round holes are distributed along the edge of the outer side surface so as to be in butt joint fit with the limiting holes on the top surface of the base; the top surface of the base is provided with a stop plate which forms a mutually abutting matching state with the adjusting plate; the top surface of the base is provided with a through hole for the rotating shaft to pass through, and the through hole is configured to allow the rotating shaft to correspondingly move in the through hole during the reciprocating motion of the adjusting plate from the first state to the second state. The adjustable cantilever device provided by the utility model is easy to adjust the parallelism of the whole cantilever and the plane of the track, is convenient and fast to operate, has high adjustment precision, and effectively improves the operation efficiency.
Description
Technical Field
The utility model belongs to the technical field of electrified railway contact net systems, and relates to an adjustable cantilever device for a rigid contact net suspension system.
Background
The rigid contact net traction locomotive of the electrified railway realizes current taking through the contact of a pantograph and a contact wire clamped by a busbar, and the basic guarantee of realizing stable current taking of the pantograph is to keep the pantograph-net continuously and reliably contacted. The installation precision and the smoothness of the steel rail directly influence the stability of the pantograph-catenary current collection in the construction and installation process of the rigid catenary. In the existing suspension system of the railway rigid contact network, when a tunnel suspension post and a cantilever are installed, the situation that a positioning wire clamp connecting plate cannot be completely parallel to a rail plane due to construction errors (or the situation that the positioning wire clamp connecting plate cannot be completely parallel to the rail plane due to the fact that the rail is not smooth in the later operation process) often occurs, and therefore the angle of the suspension post or the cantilever needs to be adjusted in time to meet the design requirements. In the conventional cantilever device in the technical field of the existing rigid catenary system, when the positioning wire clamp connecting plate is not parallel to the plane of the rail, the verticality of the suspension post needs to be changed by adjusting the foundation of the suspension post, so that the levelness of the cantilever device meets the design requirement. The adjustment of the cantilever device is possibly limited by field conditions and equipment, so that the adjustment work is difficult to operate and even cannot be adjusted, and therefore the adjustable cantilever device which is flexible, reliable and convenient to operate is needed, and the defects of the traditional cantilever device in the aspect of angle adjustment are overcome.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an adjustable cantilever device for a rigid contact net suspension system, which is flexible, reliable and convenient to operate, so as to improve the operation efficiency.
The technical means adopted by the utility model are as follows.
The adjustable cantilever device for the suspension system of the rigid contact network comprises a cantilever mechanism, an insulating part and a positioning wire clamp connecting plate which are sequentially connected, wherein the cantilever mechanism comprises a base and a hinged support which are hinged through a rotating shaft, the insulating part is connected to one side of the hinged support, which is opposite to the base, the top surface of the hinged support is positioned below the top surface of the base at the position where the base is hinged to the top surface of the hinged support, and meanwhile, a raised stop plate is arranged at the tail end of the top surface of the base; an adjusting plate is arranged on the top surface of the base and sleeved on the rotating shaft through a fourth through hole; the adjusting plate has an outer side surface in contact with the stopper plate, and is shaped such that: the distance from the outer side surface to the fourth through hole is gradually increased or decreased; the top surface of the base is provided with a second through hole for the rotating shaft to pass through, and the second through hole is configured in such a way that the rotating shaft can correspondingly move in the second through hole when the adjusting plate moves from the first state to the second state or from the second state to the first state, so that in the first state, the adjusting plate is abutted against the stop plate by the outer edge from the outer side surface to the shortest distance of the fourth through hole, and in the second state, the adjusting plate is abutted against the stop plate by the outer edge from the outer side surface to the longest distance of the fourth through hole; and in the moving process of the adjusting plate, the adjusting plate is limited in a relatively fixed state which is abutted against the stop plate through a limiting mechanism.
Optionally, the edge of the outer side surface is arc-shaped, and the center of the arc does not coincide with the center point of the fourth through hole.
Optionally, the edge of the outer side surface is linear.
Preferably, the limiting mechanism comprises a first through hole on the surface of the adjusting plate, a fixed round sleeve inserted into the first through hole, a fastener matched with the fixed round sleeve and a limiting hole on the top surface of the base; the first through hole is formed by overlapping a plurality of continuous equal-diameter circular hole parts and is distributed along the edge of the outer side face; the diameter of the upper part of the fixed round sleeve is larger than that of the lower part of the fixed round sleeve, the lower part of the fixed round sleeve is inserted into the first through hole, the upper part of the fixed round sleeve is clamped on the hole edge of the first through hole, and a third through hole for the fastener to penetrate through is formed in the center of the fixed round sleeve; the shape of the limiting hole is matched with that of the fastener, and the position of the limiting hole is matched with that of the first through hole.
Preferably, a gasket is clamped between the contact surfaces of the fixed round sleeve and the fastener, or a gasket is clamped between the contact surfaces of the base and the bottom surface of the hinged support.
Optionally, the top surface and the bottom surface of the free bearing are both formed by combining an inclined surface and a horizontal surface, wherein the inclined direction of the inclined surface is parallel to the axial direction of the insulating member.
Preferably, a supporting plate is arranged between the top surface and the bottom surface of the hinged support.
In addition, both ends of the second through hole can be semicircular, the middle of the second through hole is rectangular, and the width of the second through hole is matched with the diameter of the rotating shaft so as to further limit the rotating range of the rotating shaft in the second through hole.
Wherein, the rotating shaft can also be made of stainless steel.
The utility model achieves the following beneficial effects: the utility model skillfully adds a new adjusting plate structure on the basis of the existing cantilever device and correspondingly changes the through hole structure for the rotating shaft to pass through on the base, so that the angle of the hinged support can be correspondingly adjusted only by adjusting the relative position of the adjusting plate on the base, and then the angle of the insulating part and the positioning wire clamp connecting plate is adjusted, thereby realizing the adjustment of the parallelism of the whole cantilever and the rail plane, saving the original procedure for adjusting the angle of the tunnel suspension column or the hinged support, having simple, convenient and quick operation, high adjusting precision, convenient installation and construction, and convenient adjustment requirement after installation, and improving the construction quality and efficiency to a great extent.
Drawings
Fig. 1-2 are schematic structural views of a first embodiment of an adjustable cantilever device for a suspension system of a rigid catenary according to the present invention after installation.
Fig. 3A-3C are schematic structural views of the top surface, the side surfaces and the bottom surface of the rotating base in the first embodiment.
Fig. 4A to 4C are schematic structural views of the adjustment plate in the first embodiment.
Fig. 5A to 5B are schematic structural views of the fixed round sleeve in the first embodiment.
Fig. 6 is a main structural schematic diagram of the limiting mechanism in the first embodiment.
Fig. 7A to 7C are schematic structural views of an adjustment plate in a second embodiment.
Detailed Description
The utility model relates to an adjustable cantilever device for a rigid contact net suspension system, which mainly comprises a cantilever mechanism, an insulating part and a positioning wire clamp connecting plate which are sequentially connected, wherein the cantilever mechanism also comprises a base and a hinged support which are connected through a hinge.
As shown in fig. 1-2, the first embodiment of the adjustable suspension arm device of the present invention is a schematic structural diagram after installation and application, and the suspension posts 10, the adjustable suspension arm device, the bus positioning clips 31, and the buses 32 are shown in sequence from left to right in the figure. The adjustable cantilever device is characterized in that a base 11 of the adjustable cantilever device is fixed on a suspension post 10 through a U-shaped bolt and is fixedly connected with a busbar positioning wire clamp 31 through the bottom of a positioning wire clamp connecting plate 3.
As shown in the drawings, the cantilever mechanism in this embodiment mainly includes a base 11 and a hinged support 12 hinged via a (stainless steel) rotating shaft 14, and an insulating member 2 (e.g., an insulator) is obliquely connected to a side of the hinged support 12 opposite to the base 11. The hinged support 12 can drive the insulating part 2 to rotate in the horizontal direction while rotating around the rotating shaft 14 relative to the base 11, and the requirements of expansion with heat and contraction with cold of the lead can be met.
In addition, in the present embodiment, the top surface and the bottom surface of the hinged support 12 are both formed by an inclined surface and a horizontal surface (as shown in fig. 2), and the inclined direction of the inclined surface is parallel to the axial direction of the insulating member 2, and the horizontal surface is located at one end of the rotating shaft 1. And 2 support plates 21 are provided between the top and bottom surfaces of the hinge base 12 to enhance the supporting strength thereof.
Meanwhile, in the present embodiment, where the base 11 is hinged to the top surface of the hinge base 12, the top surface of the hinge base 12 needs to be located below the top surface of the base 11 (as shown in fig. 2), and an upwardly protruding stopper plate 15 (as shown in fig. 3A to 3C) may be provided at the end of the top surface of the base 11.
As shown in fig. 1, an adjusting plate 13 is further disposed on the top surface of the base 11, the adjusting plate 13 is sleeved on the rotating shaft 14 through a fourth through hole D, and the adjusting plate 13 further has an outer side surface 16 contacting with the stop plate 15. Referring to fig. 4A-4C, in the first embodiment, the adjusting plate 13 is defined by two straight sides and an arc to form an arc plate, the edge of the outer side surface 16 is defined by the arc, and the included angle between the two straight sides is set to 120 ° in this embodiment. The circle center of the arc of the adjusting plate is located on the adjusting plate 13, but not coinciding with the center point of the fourth through hole D, i.e. the structure of the adjusting plate can be regarded as formed by cutting off part of the plate surface from a complete regular circular plate, so that the distance from the outer side surface 16 to the fourth through hole D is gradually increased or decreased.
And the adjusting plate 13 can be limited in a relatively fixed state by the limiting mechanism 4, which can abut against the stop plate 15 at a certain position of the outer side surface 16 thereof, so as to adjust and fix the position of the adjusting plate 13 relative to the top surface of the base 11 (and the stop plate 15).
As shown in fig. 6, the limiting mechanism 4 of the present embodiment is mainly composed of a first through hole a on the surface of the adjusting plate 13, a fixing circular sleeve 41 inserted into the first through hole, and a fastening member 42 matched with the fixing circular sleeve 41. The first through holes a are formed by overlapping a plurality of continuous equal-diameter circular hole portions, and are uniformly arranged along the circular arc of the adjusting plate 13. Referring to fig. 5A-5B, the fixing circular sleeve 41 of the present embodiment is divided into an upper circular sleeve and a lower circular sleeve, wherein the diameter of the upper circular sleeve is larger than the diameter of the circular hole with the same diameter forming the first through hole a, and the diameter of the lower circular sleeve is larger than the diameter of the first through hole a, so that the lower portion of the fixing circular sleeve 41 can be inserted into the first through hole a, and the upper portion thereof can be stuck to the edge of the first through hole a. And a third through hole C for a fastening member 42 (e.g., a bolt) to pass through is formed at the center of the fixing circular sleeve 41, so that the adjusting plate 13 can be fixed to abut against the stopper plate 15 at a certain position of the outer side surface thereof.
Meanwhile, in order to further enhance the stability of the limiting mechanism 4, as shown in fig. 3A, in this embodiment, a limiting hole E matching with the shape of the fastening member 42 and the position of the first through hole a is further provided on the top surface of the base 11 for the fastening member 42 to penetrate through so that the whole device is more stable and reliable in use.
In addition, in the present invention, the second through hole B of the base 11 is further configured such that the rotating shaft 14 can rotate around the bottom of the rotating shaft 14 in the second through hole B when the adjusting plate 13 moves from the first state to the second state, or the first state to the second state, and the adjusting plate 13 can abut against the stop plate 15 with the outer side surface 16 thereof, such that in the first state, the adjusting plate 13 abuts against the stop plate 15 with the outer edge from the outer side surface to the position where the distance from the rotating shaft is shortest, and in the second state, the adjusting plate 13 abuts against the stop plate 15 with the outer edge from the outer side surface to the position where the distance from the rotating shaft is longest. Therefore, in order to realize that the adjusting plate 13 can always abut against the stop plate 15 at the outer side surface 16 thereof during the movement, the shape of the second through hole B on the top surface of the base 11 through which the rotating shaft 14 passes needs to be modified.
In the present embodiment, as shown in fig. 3A, the second through hole B has a semicircular shape at both ends and a rectangular shape in the middle, and has a width matching the diameter of the rotating shaft 14, so as to limit the rotating direction of the rotating shaft 14 in the second through hole B to only be the up-down direction on the paper. In this way, it is achieved that when the adjusting plate 13 is rotated about the rotation axis 14 relative to the base 11, it is ensured that its outer side 16 can abut against the stop plate 15, and the adjusting plate 13 is then limited by the above-mentioned limiting mechanism 4 in a relatively fixed state in which its outer side 16 abuts against the stop plate 15 at one location.
In addition, in order to increase the rotation performance and prolong the service life of each component, a gasket can be clamped between contact surfaces of the components which can rub against each other, such as: a flat washer and a composite washer are provided between the contact surfaces of the base 11 and the bottom surface of the hinge base 12. Meanwhile, a composite washer and a double-layer washer can be arranged between the contact surfaces of the fixing circular sleeve 41 and the fastening piece 42 to prevent the bolt from loosening and increase the connection stability between the components.
According to the above embodiment, when the adjusting plate 13 rotates around the rotating shaft 14 relative to the base 11, the upper portion of the rotating shaft 14 rotates in the second through hole B of the base (in the horizontal direction of the paper as shown in fig. 2), and then the top surface of the hinge base 12 is correspondingly driven to move away from or close to the base 11, so as to adjust the angle of the hinge base 12, and thus adjust the parallelism of the cantilever device as a whole with the track plane. More specifically, when the adjusting plate 13 abuts against the stop plate 15 with the outer edge of the short distance from the outer side surface 16 to the fourth through hole D, and rotates a certain angle in the counterclockwise direction as shown in fig. 4C, and is adjusted to abut against the stop plate 15 with the outer edge of the long distance from the outer side surface 16 to the fourth through hole D, the upper portion of the rotating shaft 14 rotates in the direction of the hanging post 10 in the second through hole B, and accordingly the top surface of the hinge base 12 is brought close to the base 11, so that the hinge base 12 relatively rotates a certain angle, and vice versa. As shown in the figure, the adjustable angle range of the adjusting plate 13 in this embodiment is ± 3.5 °, and the adjusting precision can meet the design requirement of site construction.
Further, it should be understood that the structure of the adjusting plate 13 in the present invention is not limited to the arc plate-like structure in the above-described embodiment, and the shape design of the adjusting plate need only satisfy: the distance from the outer side surface 16 to the fourth through hole D is increased or decreased, for example, the adjusting plate structure of the second embodiment shown in fig. 7A-7C. Wherein the adjusting plate 13 is formed by combining a trapezoidal plate 51 and a rectangular plate 52, the fourth through hole D is provided on the rectangular plate 52, and the outer edge of the outer side surface 16 is defined by a right-angle side of the trapezoidal plate 51, and the first through hole a is arranged along the right-angle side of the trapezoidal plate 51. Referring to fig. 7C, in use, one surface of the rectangular plate 52 abuts against the inclined surface of the trapezoidal plate 51, and the outer side surface 16 of the trapezoidal plate 51 abuts directly against the stop plate 15, so that the trapezoidal plate 51 can be moved in the direction of the outer side surface 16 (or the stop plate 15) when adjustment is required. The remaining structure in this embodiment is similar to that in the first embodiment, and is not described in detail herein.
Claims (10)
1. An adjustable cantilever device for a rigid contact net suspension system comprises a cantilever mechanism (1), an insulating part (2) and a positioning wire clamp connecting plate (3) which are sequentially connected, wherein the cantilever mechanism (1) comprises a base (11) and a hinged support (12) which are hinged through a rotating shaft (14), the insulating part (2) is connected on one side of the hinged support (12) back to the base (11), the adjustable cantilever device is characterized in that,
at the hinged position of the base (11) and the top surface of the hinged support (12), the top surface of the hinged support (12) is positioned below the top surface of the base (11), and meanwhile, the tail end of the top surface of the base (11) is provided with a raised stop plate (15);
an adjusting plate (13) is arranged on the top surface of the base (11), and the adjusting plate (13) is sleeved on the rotating shaft (14) through a fourth through hole (D); the adjusting plate (13) has an outer side (16) which is in contact with the stop plate (15), the adjusting plate (13) being shaped such that: the distance from the outer side surface (16) to the fourth through hole (D) is gradually increased or decreased;
the top surface of the base (11) is provided with a second through hole (B) for a rotating shaft (14) to pass through, and the second through hole (B) is configured to enable the rotating shaft (14) to correspondingly move in the second through hole (B) in the process that the adjusting plate (13) moves from a first state to a second state or from the second state to the first state, so that in the first state, the adjusting plate (13) abuts against the stop plate (15) through the outer edge of the shortest distance from the outer side surface (16) to the fourth through hole (D), and in the second state, the adjusting plate (13) abuts against the stop plate (15) through the outer edge of the longest distance from the outer side surface (16) to the fourth through hole (D);
and in the moving process of the adjusting plate (13), the adjusting plate (13) is limited in a relatively fixed state which is in contact with the stop plate (15) through a limiting mechanism (4).
2. The adjustable cantilever device according to claim 1, wherein the edge of the outer side surface (16) is circular arc, and the center of the circular arc is not coincident with the center point of the fourth through hole (D).
3. The adjustable cantilever device according to claim 1, wherein the edge of the outer side surface (16) is linear.
4. The adjustable cantilever device according to any one of claims 1 to 3, wherein the limiting mechanism (4) comprises a first through hole (A) on the surface of the adjusting plate (13), a fixed round sleeve (41) inserted into the first through hole, a fastener (42) matched with the fixed round sleeve, and a limiting hole (E) on the top surface of the base (11);
the first through hole (A) is formed by overlapping a plurality of continuous equal-diameter circular hole parts and is distributed along the edge of the outer side surface (16);
the diameter of the upper part of the fixed round sleeve (41) is larger than that of the lower part of the fixed round sleeve, the lower part of the fixed round sleeve is inserted into the first through hole (A), the upper part of the fixed round sleeve is clamped on the hole edge of the first through hole (A), and a third through hole (C) for the fastener (42) to penetrate through is formed in the center of the fixed round sleeve (41);
the shape of the limiting hole (E) is matched with that of the fastening piece (42), and the position of the limiting hole (E) is matched with that of the first through hole (A).
5. The adjustable cantilever device according to claim 4, wherein a washer is interposed between the contact surfaces of the fixed round sleeve (41) and the fastener (42).
6. Adjustable cantilever device according to claim 1, wherein the top and bottom surfaces of the hinged support (12) are composed of a combination of an inclined surface and a horizontal surface, wherein the inclined direction of the inclined surface is parallel to the axial direction of the insulating member (2).
7. Adjustable cantilever device according to claim 1 or 6, wherein a support plate (21) is provided between the top and bottom surfaces of the hinge support (12).
8. The adjustable cantilever device according to claim 1, wherein the second through hole (B) has two semicircular ends and a rectangular middle, and the width thereof matches with the diameter of the rotating shaft (14).
9. The adjustable cantilever device according to claim 1 or 6, wherein a gasket is interposed between the contact surfaces of the base (11) and the bottom surface of the hinge seat (12).
10. Adjustable cantilever device according to claim 1, wherein the rotation shaft (14) is made of stainless steel material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356954 | 2021-02-08 | ||
| CN2021203569541 | 2021-02-08 |
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| CN215398282U true CN215398282U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121787855.5U Active CN215398282U (en) | 2021-02-08 | 2021-08-02 | Adjustable cantilever device for rigid contact net suspension system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475367A (en) * | 2022-01-13 | 2022-05-13 | 重庆建筑工程职业学院 | Rail transit contact net support column device |
-
2021
- 2021-08-02 CN CN202121787855.5U patent/CN215398282U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475367A (en) * | 2022-01-13 | 2022-05-13 | 重庆建筑工程职业学院 | Rail transit contact net support column device |
| CN114475367B (en) * | 2022-01-13 | 2023-05-23 | 重庆建筑工程职业学院 | Rail transit contact net support column device |
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