CN112622705B - A support cantilever device for low headroom contact net busbar - Google Patents
A support cantilever device for low headroom contact net busbar Download PDFInfo
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- CN112622705B CN112622705B CN202011597257.1A CN202011597257A CN112622705B CN 112622705 B CN112622705 B CN 112622705B CN 202011597257 A CN202011597257 A CN 202011597257A CN 112622705 B CN112622705 B CN 112622705B
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- base
- rotating arm
- swinging boom
- annular groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
- B60M1/24—Clamps; Splicers; Anchor tips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention provides a supporting cantilever device for a low-clearance contact net busbar, and belongs to the technical field of rail transit. It has solved the problem of current busbar can not be fine realization low headroom installation. This a support cantilever device for low headroom contact net busbar includes suspension clamp, the insulator, a base for linking firmly with tunnel arc top wall body, base and swinging boom, the top and the base of insulator link firmly mutually, the bottom and the base of insulator link firmly mutually, it is the annular ring channel of circle to have on the base, be equipped with the gliding connection retaining member of ring channel that a plurality of can be followed in the ring channel, the inner that makes the swinging boom through connecting the retaining member links to each other with the base and the swinging boom can rotate around the base, the locking connection retaining member enables the swinging boom and links firmly mutually with the base, suspension clamp sets up the outer end at the swinging boom. This support cantilever device of low headroom contact net busbar rationally utilizes the space at tunnel arc top, realizes the low headroom installation.
Description
Technical Field
The invention belongs to the technical field of rail transit, and relates to a supporting cantilever device for a low-clearance contact net busbar.
Background
A suspension system of an overhead rigid contact network of urban rail transit is characterized in that a cantilever supporting device is fixed on a tunnel wall and used for supporting a suspension wire clamp. And to the problem that the tunnel headroom constantly reduces, traditional cantilever supports are applicable to great headroom, can't satisfy the installation of overhead rigid contact net suspension under the low headroom.
In view of the above problems, various improvements have been made, and some patents have been applied, for example, chinese patent documents disclose a cantilever supporting device for overhead rigid overhead contact system of low clearance tunnel [ application number: 201910002401.3, respectively; application publication No.: CN109606206A ], which comprises a supporting base fixedly installed on the tunnel wall, wherein a supporting frame is movably connected to the supporting base, the supporting frame is obliquely arranged along the vault of the tunnel, the end part of the supporting frame is connected with an insulating part, an adjusting support is connected to the insulating part, and a suspension wire clamp capable of being movably adjusted on the adjusting support is arranged on the adjusting support.
According to the cantilever supporting device with the structure, the suspension wire clamp moves along the limiting groove and the guide groove of the adjusting support, namely, linear adjustment is carried out along the width direction of the tunnel. The top in tunnel is the arch, supports the base and links firmly the lateral part at the tunnel top, supports the central point that the base passes through support frame, insulator and regulation support extension straight tunnel top and puts, and cantilever strutting arrangement's overall structure is complicated, need occupy great horizontal space, and the headspace in tunnel is not fully utilized simultaneously, the realization low headroom installation that can not be fine.
Disclosure of Invention
The invention aims to provide a supporting cantilever device for a low-clearance contact net busbar aiming at the problems in the prior art, and solves the technical problem of how to reasonably utilize the space of the arc-shaped top of a tunnel to realize low-clearance installation.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a support cantilever device for low headroom contact net busbar, includes suspension clamp, insulator and is used for the base that links firmly with tunnel arc top wall body, its characterized in that still includes base and swinging boom, the top of insulator links firmly with the base mutually, the bottom of insulator links firmly with the base mutually, it is annular ring channel of circle to have on the base, be equipped with a plurality of in the ring channel and can follow the gliding connection retaining member of ring channel, through connect the retaining member make the inner of swinging boom link to each other just the swinging boom can rotate around the base, lock connect the retaining member and enable the swinging boom and link firmly mutually with the base, suspension clamp sets up the outer end at the swinging boom.
The base directly links firmly on the wall body at tunnel arc top, the space at abundant rational utilization tunnel arc top, hang the fastener centre gripping on the busbar, during the pull-out value adjustment of busbar, make the swinging boom link to each other but do not link firmly with the base through connecting the retaining member earlier, make the swinging boom rotate around the base through rotating the swinging boom, thereby it removes to drive the suspension fastener, make the displacement that suspension fastener pulling busbar skew was set for, after the busbar pulled out the position, the locking connection retaining member makes the swinging boom link firmly with the base mutually again, the adjustment of busbar pull-out value is accomplished. The rotating arm of the supporting cantilever device rotates to be adjusted in an arc-shaped surface, the space in the length direction of the tunnel is reasonably utilized, the central position of the top of the tunnel can be installed by the supporting cantilever device, the problem of touch does not exist, and low-clearance installation is realized. Meanwhile, the supporting arm device does not need to be provided with a supporting frame and an adjusting support, and is simple in structure and convenient to install.
In foretell a support cantilever device for low headroom contact net busbar, the outer end of swinging boom has and is the spacing hole of circular shape, hang the spacing post that has the protrusion to set up on the fastener, spacing post is worn to establish in spacing hole just hang the relative swinging boom rotation of fastener ability. The suspension wire clamp is connected with the busbar, and when the rotating arm is rotated, the suspension wire clamp rotates relative to the rotating arm, so that the suspension wire clamp and the busbar cannot be clamped.
In foretell a support cantilever device for low headroom contact net busbar, the insulator is vertical along vertical direction, the axial of insulator and the axial of spacing post are parallel. The arrangement of the structure makes full use of the space at the arc top of the tunnel, and low-clearance installation is realized.
In foretell a support cantilever device for low headroom contact net busbar, the base includes the bellying that base plate and base plate bottom downward protrusion set up, the ring channel is located the bellying, works as when the swinging boom links firmly with the base mutually, the inner of swinging boom pastes and leans on the bellying, just the opening that whole ring channel was sheltered from to the swinging boom. The arrangement of the convex part provides an arrangement space of the annular groove, and meanwhile, the arrangement of the convex part improves the strength of the base; the opening that the swinging boom sheltered from whole ring channel prevents that external impurity from entering into the ring channel, appears the swinging boom to block unable pivoted problem when preventing to pull out the value readjustment.
In foretell a support cantilever device for low headroom contact net busbar, the inner of swinging boom has first locating hole, the second locating hole has in the base, the second locating hole is located the center of ring channel, wears to establish through the fastener and makes in first locating hole and second locating hole base and swinging boom are fixed a position mutually. The fastener can be the bolt, and first locating hole, second locating hole and fastener play location and spacing effect, can not deviate the settlement position when making the swinging boom rotate around the base, makes the swinging boom be difficult for droing, squinting through setting up of fastener to the pull-out value of control busbar that can be accurate.
As another situation, in the above-mentioned supporting cantilever device for a low-clearance overhead line system busbar, the inner end of the rotating arm has a first positioning hole, the base has a protruding positioning pin therein, the positioning pin is located at the center of the annular groove, and the base and the rotating arm are positioned by the positioning pin penetrating through the first positioning hole. First locating hole and locating pin play location and spacing effect, can not deviate the settlement position when making the swinging boom rotate around the base to the pull-out value of control busbar that can be accurate.
In foretell a support cantilever device for low headroom contact net busbar, it includes bolt and nut to connect the retaining member, the transversal type of personally submitting of ring channel, the head of bolt makes bolt and base joint mutually in the embedding of ring channel, the pole portion of bolt passes ring channel and swinging boom and makes the swinging boom link to each other with the base, through the nut cover is in the pole portion of bolt and screws and make swinging boom and base link to each other mutually. The bolt and the nut are conventional structures, specially-made structures are not needed, the T-shaped structure of the bolt is matched with the annular groove with the cross section in the shape of the convex letter, the bolt and the base can be clamped, the bolt cannot fall off and can move along the annular groove, the rotating arm can rotate relative to the base, and the rotating arm and the base can be fixedly connected by screwing the nut, so that the rotating arm and the base are convenient to fixedly connect.
As another aspect, in the above-mentioned support cantilever device for low headroom contact net busbar, the connection retaining member is a rivet, the head of the rivet is embedded into the annular groove to make the rivet and the base clamped together, the rod portion of the rivet passes through the annular groove and the rotating arm to make the rotating arm and the base connected, and the rotating arm and the base are fixedly connected through rivet riveting. The bus bar is very long, the pull-out value of each position of the bus bar is set, the bus bar can be accurately adjusted only during assembly, and the position of the base cannot be changed during subsequent maintenance, so that the base and the rotating arm can be directly locked through the rivet.
In foretell a support cantilever device for low headroom contact net busbar, mounting hole and intercommunication groove have on the base, mounting hole and ring channel are linked together through the intercommunication groove, connect the retaining member and imbed into the mounting hole in can entering into the ring channel through the intercommunication groove. The setting up of mounting hole and intercommunication groove makes to connect the retaining member and can enter into in the ring channel and link to each other with the base joint, and the pulling-out value is at adjustment and fixed in-process, connects the retaining member and links to each other and remove together with the swinging boom, connects the retaining member and can not follow the intercommunication groove and remove once more and drop in the mounting hole.
In foretell a support cantilever device for low headroom contact net busbar, the transversal shape of personally submitting of intercommunication groove, the groove width of intercommunication groove notch is the same with the groove width of ring channel notch, the groove width of intercommunication groove tank bottom, the groove width of ring channel tank bottom and the internal diameter of mounting hole are the same. This kind of structure, furthest prevents to connect the retaining member skew and drops, improves stability.
Compared with the prior art, the supporting cantilever device for the low-headroom contact network busbar provided by the invention has the following advantages:
1. this support cantilever device is direct mount on the wall body at tunnel arc top, and the space at abundant rational utilization tunnel arc top, swinging boom rotate simultaneously and are curved face adjustment, and the space of rational utilization tunnel length direction realizes the low headroom installation.
2. The connecting locking piece of the supporting cantilever device has no obstruction of structures such as a suspension wire clamp and the like, the operation space is large, and the pull-out value is convenient to adjust and control; meanwhile, the supporting arm device does not need to be provided with a supporting frame and an adjusting support, and is simple in structure and convenient to mount.
Drawings
Fig. 1 is a schematic view of the overall structure of the present support cantilever apparatus.
Fig. 2 is a first rotation state diagram of the base and the rotating arm of the present supporting cantilever device.
FIG. 3 is a second view of the cantilever support apparatus showing the rotation of the base and the rotating arm.
FIG. 4 is a schematic view of the attachment of the annular groove and the attachment retaining member of the present support cantilever assembly.
Figure 5 is a cross-sectional view of the present support boom apparatus taken along the line of fig. 4A-a.
In the figure, 1, a wire clamp is hung; 11. a limiting column; 2. an insulator; 3. a base; 4. a base; 41. an annular groove; 42. a substrate; 43. a boss portion; 44. a second positioning hole; 45. mounting holes; 46. a communicating groove; 5. a rotating arm; 51. a limiting hole; 52. a first positioning hole; 6. connecting a locking piece; 7. a fastener.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in figure 1, the supporting cantilever device for the low-clearance contact network busbar comprises a suspension clamp 1, an insulator 2, a base 3, a base 4, a rotating arm 5 and a connecting locking piece 6. Base 3 links firmly through inflation screw etc. and tunnel arc top wall body, and the top of insulator 2 links firmly with base 3 mutually, and the bottom of insulator 2 links firmly with base 4 mutually, and the inner of swinging boom 5 links to each other with base 4, and suspension clamp 1 sets up the outer end at swinging boom 5.
As shown in fig. 2 and 3, the base 4 includes a base plate 42 and a protrusion 43 protruding downward from the bottom of the base plate 42, the protrusion 43 has a circular annular groove 41 therein, and the cross section of the annular groove 41 is convex, in this embodiment, four connecting locking members 6 capable of sliding along the annular groove 41 are provided in the annular groove 41, and in actual production, the number of the connecting locking members 6 may be three or six. Connect retaining member 6 including bolt and nut, the head of bolt makes bolt and base 4 joint mutually in embedding into ring channel 41, the pole portion of bolt passes ring channel 41 and swinging boom 5 and makes swinging boom 5 link to each other with base 4, cover the pole portion of bolt and screw through the nut and make swinging boom 5 and base 4 link firmly mutually, the inner of swinging boom 5 pastes and leans on bellying 43, and swinging boom 5 shelters from the opening of whole ring channel 41.
As shown in fig. 4 and 5, the base 4 is provided with a mounting hole 45 and a communication groove 46, the mounting hole 45 is communicated with the annular groove 41 through the communication groove 46, the cross section of the communication groove 46 is convex, the groove width of the groove opening of the communication groove 46 is the same as that of the groove opening of the annular groove 41, the groove width of the groove bottom of the communication groove 46, the groove width of the groove bottom of the annular groove 41 and the inner diameter of the mounting hole 45 are the same, and the connecting locking member 6 is embedded into the mounting hole 45 and can enter the annular groove 41 through the communication groove 46.
The inner end of the rotating arm 5 has a first positioning hole 52, the base 4 has a second positioning hole 44 therein, the second positioning hole 44 is located at the center of the annular groove 41, and the base 4 and the rotating arm 5 are positioned by a fastening member 7 such as a bolt or a rivet inserted through the first positioning hole 52 and the second positioning hole 44. The outer end of swinging boom 5 has and is the spacing hole 51 of circular shape, hangs and has the spacing post 11 that the protrusion set up on fastener 1, and spacing post 11 is worn to establish in spacing hole 51 and is established stop nut at 11 overcoat of spacing post, and stop nut is located swinging boom 5's upper and lower both sides, and the relative swinging boom 5 of hanging fastener 1 ability rotates. The insulator 2 is vertical along the vertical direction, and the axial direction of the insulator 2 is parallel to the axial direction of the limiting column 11.
During installation, fix base 3 on tunnel arc top wall body, connect insulator 2 and base 4, make the inner of swinging boom 5 link to each other and make and connect retaining member 6 and swinging boom 5 to link to each other with base 4 through fastener 7, hang the rotatable outer end of installing at swinging boom 5 of fastener 1 and centre gripping on the busbar, rotate swinging boom 5, the outer end pulling of swinging boom 5 hangs fastener 1 and makes the busbar deviate the settlement position, control the pulling value of busbar, after the pulling value adjusted the settlement position, the nut of screwing, make swinging boom 5 fixed with base 4 mutually.
Example two
The structure and principle of this embodiment are substantially the same as those of the first embodiment, except that in this embodiment, the inner end of the rotating arm 5 has a first positioning hole 52, the base 4 has a protruding positioning pin, the positioning pin is located at the center of the annular groove 41, and the base 4 and the rotating arm 5 are positioned by the positioning pin penetrating through the first positioning hole 52.
EXAMPLE III
The structure and principle of this embodiment are substantially the same as those of the first embodiment, except that in this embodiment, the connecting locking member 6 is a rivet, the head of the rivet is embedded into the annular groove 41 to enable the rivet to be clamped with the base 4, the rod of the rivet penetrates through the annular groove 41 and the rotating arm 5 to enable the rotating arm 5 to be connected with the base 4, and the rotating arm 5 is fixedly connected with the base 4 through rivet riveting.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the suspension clamp 1, the limiting post 11, the insulator 2, the base 3, the base 4, the annular groove 41, the base plate 42, the boss 43, the second positioning hole 44, the mounting hole 45, the communicating groove 46, the rotating arm 5, the limiting hole 51, the first positioning hole 52, the connecting locking member 6, the fastening member 7, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (9)
1. The utility model provides a support cantilever device for low headroom contact net busbar, includes suspension clamp (1), insulator (2) and is used for base (3) that links firmly with tunnel arc top wall body, its characterized in that still includes base (4) and swinging boom (5), the top of insulator (2) links firmly mutually with base (3), the bottom of insulator (2) links firmly with base (4) mutually, have on base (4) and be annular ring channel (41), be equipped with a plurality of in ring channel (41) and can follow gliding connection retaining member (6) of ring channel (41), make the inner of swinging boom (5) link to each other with base (4) and through connection retaining member (6) just swinging boom (5) can rotate around base (4), lock connection retaining member (6) can make swinging boom (5) link firmly with base (4) mutually, hang fastener (1) and set up the outer end at swinging boom (5), mounting hole (45) and intercommunication groove (46) have on base (4), mounting hole (45) and ring channel (41) are linked together through intercommunication groove (46), connect retaining member (6) and imbed in mounting hole (45) and can enter into ring channel (41) through intercommunication groove (46).
2. The supporting cantilever device for the low clearance overhead line system busbar of claim 1, wherein the outer end of the rotating arm (5) has a circular limiting hole (51), the suspension clamp (1) has a protruding limiting post (11), the limiting post (11) is inserted into the limiting hole (51) and the suspension clamp (1) can rotate relative to the rotating arm (5).
3. The supporting cantilever device for low-clearance overhead line system busbar of claim 2, wherein the insulator (2) is vertical in vertical direction, and the axial direction of the insulator (2) is parallel to the axial direction of the spacing column (11).
4. The supporting cantilever device for low-clearance overhead line system busbar according to claim 1, 2 or 3, wherein the base (4) comprises a base plate (42) and a convex portion (43) protruding downwards from the bottom of the base plate (42), the annular groove (41) is located in the convex portion (43), when the rotating arm (5) is fixedly connected with the base (4), the inner end of the rotating arm (5) abuts against the convex portion (43), and the rotating arm (5) covers the opening of the whole annular groove (41).
5. The supporting cantilever device for low-clearance overhead line system busbar according to claim 1, 2 or 3, wherein the inner end of the rotating arm (5) has a first positioning hole (52), the base (4) has a second positioning hole (44), the second positioning hole (44) is located at the center of the annular groove (41), and the base (4) and the rotating arm (5) are positioned by a fastener (7) passing through the first positioning hole (52) and the second positioning hole (44).
6. The supporting cantilever device for low-clearance overhead line system busbar of claim 1, 2 or 3, wherein the inner end of the rotating arm (5) has a first positioning hole (52), the base (4) has a protruding positioning pin, the positioning pin is located at the center of the annular groove (41), and the base (4) and the rotating arm (5) are positioned by the positioning pin penetrating the first positioning hole (52).
7. The supporting cantilever device for the low headroom contact network busbar according to claim 1, 2 or 3, wherein the connecting locking member (6) comprises a bolt and a nut, the cross section of the annular groove (41) is in a convex shape, the head of the bolt is embedded into the annular groove (41) to clamp the bolt with the base (4), the rod part of the bolt passes through the annular groove (41) and the rotating arm (5) to connect the rotating arm (5) with the base (4), and the nut is sleeved on the rod part of the bolt and screwed to fixedly connect the rotating arm (5) with the base (4).
8. The supporting cantilever device for the low headroom contact network busbar according to claim 1, 2 or 3, wherein the connecting locking member (6) is a rivet, the head of the rivet is embedded into the annular groove (41) to clamp the rivet with the base (4), the rod of the rivet passes through the annular groove (41) and the rotating arm (5) to connect the rotating arm (5) with the base (4), and the rotating arm (5) is fixedly connected with the base (4) by riveting.
9. The supporting cantilever device for low-clearance overhead line system busbar according to claim 1, 2 or 3, wherein the cross section of the communication groove (46) is in a convex shape, the width of the notch of the communication groove (46) is the same as that of the notch of the annular groove (41), and the width of the bottom of the communication groove (46), the width of the bottom of the annular groove (41) and the inner diameter of the mounting hole (45) are the same.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011597257.1A CN112622705B (en) | 2020-12-29 | 2020-12-29 | A support cantilever device for low headroom contact net busbar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011597257.1A CN112622705B (en) | 2020-12-29 | 2020-12-29 | A support cantilever device for low headroom contact net busbar |
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| CN112622705A CN112622705A (en) | 2021-04-09 |
| CN112622705B true CN112622705B (en) | 2022-04-19 |
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| CN112622705A (en) | 2021-04-09 |
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