CN115123028A

CN115123028A - Cantilever structure for reverse positioning type contact net

Info

Publication number: CN115123028A
Application number: CN202210966031.7A
Authority: CN
Inventors: 陈永强; 皋金龙; 周玉杰; 梁勇; 张磊明; 陈永涛; 邵新亮; 陈冬杰; 孙立伟; 张�浩; 孙丹阳; 孙明岗
Original assignee: Hebei Xiong'an Chaoxiong New Material Technology Co ltd; Baoding Chaoxiong Electrification Electric Power Equipment Co ltd; China Railway Electrification Survey Design and Research Institute Co Ltd
Current assignee: Hebei Xiong'an Chaoxiong New Material Technology Co ltd; Baoding Chaoxiong Electrification Electric Power Equipment Co ltd; China Railway Electrification Survey Design and Research Institute Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-09-30

Abstract

The invention discloses a cantilever structure for an anti-positioning type contact net, which comprises a flat cantilever and an inclined cantilever which are positioned on a cantilever support, wherein one end of the inclined cantilever is connected to the flat cantilever through a cantilever connector, a first support connector in the middle of the inclined cantilever is connected to a second support connector of the flat cantilever through a cantilever support, the lower end of the first support connector is connected with a horizontal positioning pipe, the upper part of a positioning support at the other side of the positioning pipe is connected with the lower part of the cantilever connector through a positioning pipe support, and positioners at two sides below the positioning support are connected with the lower part of a third support connector in the middle of the positioning pipe. The cantilever structure for the reverse positioning type contact net is simple in structure, the number of the overall connecting structures is greatly reduced, and meanwhile stable support is guaranteed.

Description

Cantilever structure for reverse positioning type contact net

Technical Field

The invention relates to the technical field of contact networks, in particular to a cantilever structure for a reverse positioning type contact network.

Background

Safe and efficient operation of high-speed railways in electrified railways has a crucial meaning for development of the whole railway network, wherein a contact network system is one part which is most prone to problems. As one of the important components in the power supply system of the electrified railway, the performance of the contact network system and the state of the device will directly affect the safety and reliability of the train operation. The overhead contact system is a special power supply line in a railway system, is erected in the air along a railway line and mainly comprises a contact suspension, a supporting device, a positioning device, a cantilever support, an auxiliary component and the like.

The contact suspension comprises connecting parts such as contact wires, dropper, carrier cables and the like; the supporting device comprises a cantilever structure, an insulator and other necessary connecting parts and the like and is mainly used for supporting contact suspension; the positioning device comprises a positioning pipe, a positioner wire clamp and a connecting part, and is used for fixing the position of the contact wire so as to ensure that the contact wire is within the range of the operation track of the pantograph slide plate in the running process of the train and the contact wire is not separated from the pantograph. The orientation in which the contact wire is pulled toward the strut side by the positioning tube and the positioner is referred to as positive orientation, while the side away from the strut is negative orientation. In the prior art, the structure of the wrist arm is complex, and the rapid installation can not be realized while the bearing strength is ensured.

Disclosure of Invention

The invention aims to provide a cantilever structure for a reverse positioning type overhead contact system, which is simple in structure, greatly reduces the number of overall connecting structures, and ensures stable support.

In order to achieve the purpose, the invention provides a cantilever structure for an anti-positioning type contact network, which comprises a flat cantilever and an inclined cantilever which are positioned on a cantilever support, wherein one end of the inclined cantilever is connected to the flat cantilever through a cantilever connector, a first support connector in the middle of the inclined cantilever is connected to a second support connector of the flat cantilever through a cantilever support, the lower end of the first support connector is connected with a horizontal positioning pipe, the upper part of a positioning support at the other side of the positioning pipe is connected with the lower part of the cantilever connector through a positioning pipe support, and positioners at two sides below the positioning support are connected with the lower part of a third support connector in the middle of the positioning pipe;

an obtuse triangle is formed among the positioning tube support, the positioning tube and the inclined cantilever, a right triangle is formed among the cantilever support, the flat cantilever and the inclined cantilever, and the third support connector is located on the inner side of the positioning support in the vertical direction.

Preferably, the first support connector comprises a first connecting seat and a second connecting seat which are connected with each other in opposite sides, first lifting lugs connected with the cantilever support are arranged at the upper parts of the first connecting seat and the second connecting seat, an arc-shaped first connecting part is arranged at the middle part of each first connecting seat, and first fixing holes are arranged at the upper side and the lower side of each first connecting part;

the lower part of the first connecting seat is provided with a first clamping groove corresponding to the second connecting seat, and the upper part of the first connecting part is provided with an inward convex arc-shaped first convex block.

Preferably, a first hook body connected with the positioning pipe is arranged below the first connecting seat, and a first connecting ring connected with the closed end of the first hook body is arranged on one side of the positioning pipe.

Preferably, the second supporting connector and the third supporting connector both comprise a third connecting seat and a fourth connecting seat which are connected in opposite sides, a second fixing hole is formed in the upper portion and the lower portion of a second connecting portion of the third connecting seat and the fourth connecting seat, and a second lifting lug is arranged at the lower end of the second connecting portion.

Preferably, the positioning support comprises a fifth connecting seat and a sixth connecting seat, connecting legs which are arranged outwards and have symmetrical structures are arranged below third connecting parts of the fifth connecting seat and the sixth connecting seat respectively, third lifting lugs connected with the positioning pipe in a supporting mode are arranged above the connecting legs, third fixing holes are formed in the upper portion and the lower portion of each third connecting part, the sizes of the connecting legs from top to bottom are reduced in sequence, a second hook body connected with the positioner is arranged at the tail end of each connecting leg, and a second connecting ring connected with the closed end of the second hook body is arranged at one end of the positioner.

Preferably, the wrist arm connector comprises a seventh connecting seat and an eighth connecting seat, a heightening column connected with the messenger cable seat is arranged above the seventh connecting seat, a second clamping groove corresponding to the eighth connecting seat is arranged below the heightening column, and a strip-shaped through hole is formed in the inner side of the heightening column;

the double-screw bolt of messenger wire seat is penetrated through in the downthehole of increasing post top middle part, messenger wire seat's top is equipped with the briquetting, the both sides of briquetting are equipped with the arch that corresponds with messenger wire seat both sides recess, messenger wire seat's inboard is equipped with the double-fixing groove of being connected with messenger wire.

Preferably, double lugs connected with the positioning tube support and the inclined cantilever respectively are arranged below the seventh connecting seat and the eighth connecting seat, arc-shaped grooves are formed in the middle of the double lugs, and fourth fixing holes are formed in the upper side and the lower side of the fourth connecting portion of the seventh connecting seat and the eighth connecting seat.

Preferably, the middle part of the rod body of the positioner is of an upward convex smooth structure, and the other end of the rod body of the positioner is provided with a convex fourth lifting lug connected with a windproof wire.

Preferably, the reinforcing layers are arranged on the outer sides of the first fixing hole, the second fixing hole, the third fixing hole and the fourth fixing hole, the reinforcing ribs are arranged on the outer sides of the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion, and the reinforcing ribs are arranged in the middle of the inner side of the through hole.

Preferably, the upper and lower sides of the first and second connection rings are provided with notches, and the inner side of the second connection ring is provided with a hole for connecting an electrical connection wire.

Therefore, the cantilever structure for the anti-positioning type contact net is simple in structure, the number of the whole connecting structures is greatly reduced, and meanwhile, stable support is guaranteed.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

Fig. 1 is a schematic view of an embodiment of a cantilever structure for a reverse positioning type overhead line system of the present invention;

fig. 2 is a schematic view of a first support connector in a cantilever structure for a reverse positioning type overhead line system according to the present invention;

fig. 3 is a schematic view of a second support connector in a cantilever structure for a reverse positioning type overhead line system according to the present invention;

fig. 4 is a schematic view of a wrist connector in a wrist structure for a reverse positioning type overhead contact system according to the present invention;

FIG. 5 is a schematic view of a positioning support in a cantilever structure for a reverse positioning type overhead line system according to the present invention;

FIG. 6 is a schematic view of a positioner in a cantilever structure for a reverse positioning type overhead line system according to the present invention;

fig. 7 is a schematic view of a second embodiment of the wrist-arm connector in the wrist-arm structure for the anti-positioning type overhead contact system of the invention.

Reference numerals

1. A cantilever support; 2. a wrist-flattening arm; 3. an oblique wrist arm; 4. a wrist-arm support; 5. supporting the positioning pipe; 6. a reinforcing layer; 7. reinforcing ribs; 8. a notch;

10. a first support connector; 101. a first connecting seat; 102. a second connecting seat; 103. a first lifting lug; 104. a first connection portion; 105. a first fixing hole; 106. a first hook body; 107. a first bump; 108. a first card slot;

11. a second support connector; 111. a third connecting seat; 112. a fourth connecting seat; 113. a second connecting portion; 114. a second fixing hole; 115. a second lifting lug; 12. a third support connector;

13. a wrist-arm connector; 131. a seventh connecting seat; 132. an eighth connecting seat; 133. heightening columns; 134. a second card slot; 135. a through hole; 136. a fourth fixing hole; 137. two ears; 138. a fourth connecting portion;

14. a messenger wire seat; 141. briquetting; 142. a protrusion;

15. positioning a support; 151. a fifth connecting seat; 152. a sixth connecting seat; 153. a third connecting portion; 154. a connecting leg; 155. a third fixing hole; 156. a second hook body; 157. a third lifting lug;

16. a positioning tube; 161. a first connecting ring;

17. a positioner; 171. a second connection ring; 172. and a fourth lifting lug.

Detailed Description

The technical scheme of the invention is further explained by the attached drawings and the embodiment.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in the figure, the cantilever structure for the anti-positioning type overhead contact system comprises a flat cantilever 2 and an inclined cantilever 3 which are positioned on a cantilever support 1, wherein the cantilever support 1 provides support for the flat cantilever 2 and the inclined cantilever 3. One end of the inclined wrist arm 3 is connected to the flat wrist arm 2 through a wrist arm connector 13, and the wrist arm connector 13 realizes stable connection of one end of the inclined wrist arm 3. The first support connector 101 in the middle of the inclined cantilever 3 is connected to the second support connector 11 of the flat cantilever 2 through the cantilever support 4, and the inclined cantilever 3 and the flat cantilever 2 are stably connected through the cantilever support 4, so that the stable support of the inclined cantilever 3 and the flat cantilever 2 is guaranteed.

The lower end of the first support connector 101 is connected with the horizontal positioning tube 16, so as to fix one end of the positioning tube 16. The upper part of the positioning support 15 on the other side of the positioning tube 16 is connected with the lower part of the wrist arm connector 13 through the positioning tube support 5, and the positioning tube support 5 realizes the fixation of the other end of the positioning tube 16, thereby realizing the stability of the two sides of the positioning tube 16 and ensuring the stable connection of the double-bearing and double-guide.

The positioners 17 on two sides below the positioning support 15 are connected with the lower part of the third support connector 12 in the middle of the positioning tube 16, and the stable connection of the positioners 17 is realized through the positioning support 15 and the third support connector 12. The third support connector 12 is located inside the positioning seat 15 in the vertical direction, enabling an effective outward pulling of the contact line, thus equalizing the effects of train vibrations.

An obtuse triangle is formed among the positioning pipe support 5, the positioning pipe 16 and the inclined cantilever 3, so that the stability of the positioning pipe during high-frequency vibration caused by train passing is guaranteed. A right-angled triangle is formed among the cantilever support 4, the flat cantilever 2 and the inclined cantilever 3, so that the position of the inclined cantilever 3 is fixed, and the stability of the positioning tube 16 is realized.

The first support connector 10 includes a first connection seat 101 and a second connection seat 102 connected to opposite sides, the middle portions of the first connection seat 101 and the second connection seat 102 are both provided with an arc-shaped first connection portion 104, and the first connection portion 104 realizes a stable connection on the inclined wrist arm 3. The upper and lower sides of the first connection portions 104 are provided with first fixing holes 105, and the first connection portions 104 are stably connected through the first fixing holes 105. The upper parts of the first connecting seat 101 and the second connecting seat 102 are both provided with a first lifting lug 103 connected with the cantilever support 4, and the first lifting lug 103 realizes the connection of the cantilever support 4.

An arc-shaped first bump 107 protruding inwards is arranged above the first connecting parts 104, and the first bump 107 realizes tight connection between the first connecting parts 104. And provides space for the fixation of the wrist support 4. A first clamping groove 108 corresponding to the second connecting seat 102 is arranged below the first connecting seat 101, so that stable connection of the second connecting seat 102 is ensured, and the bearing strength of the connecting seat is further improved. A first hook 106 connected with the positioning tube 16 is arranged below the first connecting seat 104, and the first hook 106 is used for connecting with the positioning tube 16. One side of the positioning tube 16 is provided with a first connecting ring 161 connected with the closed end of the first hook 106, and the stable connection between the positioning tube 16 and the first connecting seat 104 is realized through the connection of the first connecting ring 161 and the first hook 106.

The second support connector 11 is identical in structure to the third support connector 12, the second support connector 11 is used for connecting the wrist support 4 to the flat cantilever 2, and the third support connector 12 is used for connecting the windproof wire at one end of the positioner 17 to the positioning pipe 16. The second supporting connector 11 and the third supporting connector 12 both include a third connecting seat 111 and a fourth connecting seat 112 connected to opposite sides, a second fixing hole 114 is formed in the upper and lower portions of the third connecting seat 111 and the fourth connecting seat 112, and the third connecting seat 111 and the fourth connecting seat 112 are stably connected through the second fixing hole 114. The lower ends of the second connecting parts 113 of the third connecting seat 111 and the fourth connecting seat 112 are provided with second lifting lugs 125 connected with the wrist support 4, and the stable connection of the wrist support 4 or the windproof wire is realized through the second lifting lugs 125.

The middle part of the rod body of the positioner 17 is of an upward convex smooth structure, so that the integral bearing strength and elasticity are improved. The other end of the locator 17 is provided with a convex fourth lifting lug 172 connected with the windproof wire, and the fourth lifting lug 172 realizes the fixation of the windproof wire.

The wrist arm connector 13 includes a seventh connecting seat 131 and an eighth connecting seat 132, the upper and lower sides of a fourth connecting part 138 of the seventh connecting seat 131 and the eighth connecting seat 132 are provided with fourth fixing holes 136, and the seventh connecting seat 131 and the eighth connecting seat 132 are stably connected through the fourth fixing holes 136. Two lugs 137 which are respectively connected with the positioning tube support 5 and the inclined cantilever 3 are arranged below the seventh connecting seat 131 and the eighth connecting seat 132, and the stable connection of the positioning tube support 5 and the inclined cantilever 3 is realized by the two lugs 137. The middle part of ears 137 is equipped with the arc wall, guarantees the free motion when the positioning tube supports 5, oblique cantilever 3 stable connection, and the quick installation of being convenient for, convenient operation.

In addition, the wrist arm connector can also be in the structure shown in fig. 7, wherein the heightening columns are not included, and other structures are the same.

The seventh connecting seat 131 is provided with a heightening column 133 connected with the carrier cable seat 14 above, so that the overall height is increased on the basis of the original structure according to the terrain, the height of the carrier cable is increased, and accidents caused by excessive pressing are prevented. A second slot 134 corresponding to the eighth connecting seat 132 is disposed below the heightening post 133, so that the eighth connecting seat 132 is stably connected to the seventh connecting seat 131. The inboard of increasing post 133 is equipped with bar through-hole 135, and the inboard middle part of through-hole 135 is equipped with strengthening rib 7, and strengthening rib 7 has improved holistic bearing strength.

A stud of the messenger wire seat 14 penetrates through a hole in the middle above the heightening column 133, and the messenger wire seat 14 and the pressing block 141 are fixed by the stud. A pressing block 141 is arranged above the messenger wire seat 14, protrusions 142 corresponding to grooves on two sides of the messenger wire seat 14 are arranged on two sides of the pressing block 141, and the position of the messenger wire is fixed by the pressing block 141 and the protrusions 142. The inner side of the carrier cable seat 14 is provided with a double fixing groove connected with the carrier cable, so that the stable connection of the carrier cable is ensured.

The positioning support 15 includes a fifth connecting seat 151 and a sixth connecting seat 152, connecting legs 154 which are arranged outwards and have symmetrical structures are respectively arranged below the third connecting portions 153 of the fifth connecting seat 151 and the sixth connecting seat 152, third fixing holes 155 are respectively arranged above and below the third connecting portions 153, and stable connection of the fifth connecting seat 151 and the sixth connecting seat 152 is realized through the third fixing holes 155. At the same time, the connecting legs 154 effect the connection of the retainer 17. The connecting legs 154 are sequentially reduced in size from top to bottom, so that the elasticity of the connecting legs is ensured, the rigidity is prevented from being too high, and the high-frequency vibration cannot be effectively buffered. The distal end of the connecting leg 154 is provided with a second hook 156 connected to the retainer 17, one end of the retainer 17 is provided with a second connecting ring 171 connected to the closed end of the second hook 156, and the retainer 17 is stably connected to the connecting leg 154 by the second hook 156 and the second connecting ring 171. A third lifting lug 157 connected with the positioning tube support 5 is arranged above the third connecting part 153, so that stable fixation of the positioner 17 is ensured.

Reinforcing layers 6 are arranged on the outer sides of the first fixing hole 105, the second fixing hole 114, the third fixing hole 124 and the fourth fixing hole 136, and accordingly bearing strength of the fixing holes is guaranteed. The outer sides of the first connecting portion 104, the second connecting portion 113, the third connecting portion 123 and the fourth connecting portion 138 are all provided with reinforcing ribs 7, and the bearing strength of the reinforcing ribs 7 is further improved.

The upper and lower sides of the first and second connection rings 161, 171 are provided with notches 8, and the notches 8 facilitate the first and second connection rings 161, 171 to be quickly clamped into the hook body. The inner side of the second connection ring 171 is provided with holes for connecting the electrical connection wires, achieving stable fixation of the electrical connection wires.

In the anti-positioning structure, the contact wire and the lead are dragged to the outer side of the cantilever support 1, so that the positioner bears larger force. The locator 17 also needs to be stable in a high frequency, high intensity vibration environment caused by train operation. In this process, the first hook 106 coupled to the first coupling ring 161 of the locator tube 16 damps part of the vibration, and the locator tube support 5 damps up and down vibration caused by part of the train operation by micro-screwing in the locator bracket 15, the wrist arm coupler 13.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a wrist arm structure for anti-locate mode contact net which characterized in that: the positioning device comprises a flat cantilever and an inclined cantilever which are positioned on a cantilever support, wherein one end of the inclined cantilever is connected to the flat cantilever through a cantilever connector, a first support connector in the middle of the inclined cantilever is connected to a second support connector of the flat cantilever through a cantilever support, the lower end of the first support connector is connected with a horizontal positioning pipe, the upper part of a positioning support at the other side of the positioning pipe is connected with the lower part of the cantilever connector through a positioning pipe support, and positioners at two sides below the positioning support are connected with the lower part of a third support connector in the middle of the positioning pipe;

an obtuse triangle is formed among the positioning tube support, the positioning tube and the inclined wrist arm, a right triangle is formed among the wrist arm support, the flat wrist arm and the inclined wrist arm, and the third support connector is located on the inner side of the positioning support in the vertical direction.

2. The cantilever structure for the anti-positioning type overhead line system of claim 1, wherein: the first support connector comprises a first connecting seat and a second connecting seat which are connected with each other in opposite sides, first lifting lugs connected with the cantilever support are arranged at the upper parts of the first connecting seat and the second connecting seat, arc-shaped first connecting parts are arranged at the middle parts of the first connecting seat and the second connecting seat, and first fixing holes are formed in the upper side and the lower side of each first connecting part;

3. The cantilever structure for the anti-positioning type overhead line system of claim 2, wherein: a first hook body connected with the positioning pipe is arranged below the first connecting seat, and a first connecting ring connected with the closed end of the first hook body is arranged on one side of the positioning pipe.

4. The cantilever structure for the reverse positioning type overhead line system of claim 3, wherein: the second supporting connector and the third supporting connector both comprise a third connecting seat and a fourth connecting seat which are connected in opposite sides, second fixing holes are formed in the upper portion and the lower portion of a second connecting portion of the third connecting seat and the lower portion of the second connecting portion of the fourth connecting seat, and second lifting lugs are arranged at the lower end of the second connecting portion.

5. The cantilever structure for the anti-positioning type overhead line system of claim 4, wherein: the positioning support comprises a fifth connecting seat and a sixth connecting seat, connecting legs which are arranged outwards and have symmetrical structures are arranged below third connecting parts of the fifth connecting seat and the sixth connecting seat respectively, third lifting lugs connected with the positioning pipe in a supporting mode are arranged above the connecting legs, third fixing holes are formed in the upper portion and the lower portion of each third connecting part, the sizes of the connecting legs from top to bottom are reduced in sequence, a second hook body connected with the positioner is arranged at the tail end of each connecting leg, and a second connecting ring connected with the closed end of the second hook body is arranged at one end of the positioner.

6. The cantilever structure for the anti-positioning type overhead line system of claim 5, wherein: the wrist arm connector comprises a seventh connecting seat and an eighth connecting seat, a heightening column connected with the carrier cable seat is arranged above the seventh connecting seat, a second clamping groove corresponding to the eighth connecting seat is arranged below the heightening column, and a strip-shaped through hole is formed in the inner side of the heightening column;

the double-screw bolt of messenger wire seat has been worn to run through in the downthehole of increasing post top middle part, messenger wire seat's top is equipped with the briquetting, the both sides of briquetting are equipped with the arch that corresponds with messenger wire seat both sides recess, messenger wire seat's inboard is equipped with the double-fixing groove of being connected with messenger wire.

7. The cantilever structure for the reverse positioning type overhead line system of claim 6, wherein: the lower part of the seventh connecting seat and the eighth connecting seat is provided with double lugs which are respectively connected with the positioning tube support and the inclined cantilever, the middle parts of the double lugs are provided with arc-shaped grooves, and the upper side and the lower side of the fourth connecting part of the seventh connecting seat and the eighth connecting seat are provided with fourth fixing holes.

8. The cantilever structure for the anti-positioning type overhead line system of claim 7, wherein: the middle part of the rod body of the positioner is of an upward convex smooth structure, and the other end of the rod body is provided with a convex fourth lifting lug connected with a windproof wire.

9. The cantilever structure for the anti-positioning type overhead line system of claim 8, wherein: the outside of first fixed orifices, second fixed orifices, third fixed orifices, fourth fixed orifices all is equipped with the enhancement layer, and the outside of first connecting portion, second connecting portion, third connecting portion, fourth connecting portion all is equipped with the strengthening rib, the inboard middle part of through-hole also is equipped with the strengthening rib.

10. The cantilever structure for the anti-positioning type overhead line system of claim 9, wherein: gaps are formed in the upper side and the lower side of the first connecting ring and the second connecting ring, and holes for connecting electric connecting wires are formed in the inner side of the second connecting ring.