CN113085669A - Fixing structure of upper-span bridge steel column carrier cable lower anchor device - Google Patents
Fixing structure of upper-span bridge steel column carrier cable lower anchor device Download PDFInfo
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- CN113085669A CN113085669A CN202110358936.1A CN202110358936A CN113085669A CN 113085669 A CN113085669 A CN 113085669A CN 202110358936 A CN202110358936 A CN 202110358936A CN 113085669 A CN113085669 A CN 113085669A
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- transmission chamber
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 46
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 10
- 239000012212 insulator Substances 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Classifications
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a fixing structure of a fixing device of a carrier cable lower anchor device of an upper span bridge steel column, and relates to the technical field of power supply of electrified railways. The invention can limit the falling weight rod and prevent the falling weight rod from swinging obliquely, ensures that the falling weight rod can only be limited in the up-and-down type moving range as far as possible when the compensation rope and the falling weight rod are connected, shortens the breakpoint distance of the contact network when the contact network is disconnected, and prevents the falling weight from falling to injure pedestrians under a bridge, thereby ensuring the relative stability of the hanging falling weight rod and the falling weight, improving the operation safety and ensuring the continuous and normal work of the compensation rope.
Description
Technical Field
The invention relates to the technical field of electrified railway power supply, in particular to a fixing structure of an upper span bridge steel column carrier cable lower anchoring device.
Background
The power supply system of the electrified railway is characterized in that electric energy is provided by a power plant in a centralized way, and the electric energy is transmitted to a traction substation through a high-voltage transmission line (110kV) through a transformer substation, is converted into a voltage of 27.5kV and is transmitted to a contact network to be supplied to an electric locomotive running along the line. The traction power supply means power supply from a railway traction substation to a traction catenary in a power system. The power supply section is one of important business departments of a railway system and is mainly responsible for traction power supply of an electrified railway, railway transportation signal power supply, power supply of a railway area, overhaul and maintenance of power equipment and the like. In popular terms, it is the unit responsible for the traffic light. The electric service section has the functions of maintaining signal equipment to normally display signals, maintaining point switches and turnouts to normally move and ensuring normal operation of trains.
At present, a compensating rope, a mounting frame, a compensating pulley and a suspension insulator are the prior art, a balance weight rod and a balance weight are usually additionally arranged for tensioning a catenary contact wire for adaptive counterweight, so that the catenary contact wire connected with the compensating rope through the suspension insulator can be kept in a tightened state when the influence of wind power and the like is met. However, through analysis on the prior art, it is found that the weight rod with the weight in the prior art is prone to generate deflection or even shaking motion along with up-and-down motion under the pulling action of the compensation rope, so that the weight rod and the weight can be greatly unstable after being hung, certain limitations exist, once a carrier cable on an upper span bridge is broken, a breakpoint can fly out under the action of the weight, the accident influence range is expanded, and the weight can fall under the bridge and also has the risk of crushing pedestrians under the bridge.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: in the prior art, a balance weight rod provided with a balance weight is easy to generate deflection or even shaking motion along with up-and-down motion under the pulling action of a compensation rope, so that the balance weight rod and the balance weight are extremely unstable after being hung, and meanwhile, when a broken line fault occurs, the accident range is expanded, and further the fixing structure for the upper-span bridge steel column messenger wire anchoring device is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fixing structure of a fixing device of a carrier cable of an upper span bridge steel column comprises a mounting frame, two compensation pulleys, two compensation ropes, two suspension insulators, two upright post assemblies and a cross beam assembly, wherein the mounting frame is vertically arranged, the two compensation pulleys are arranged corresponding to the two compensation pulleys respectively, the cross beam assembly is arranged at the tops of the two upright post assemblies, the beam assembly is fixedly arranged on the mounting frame, the tail ends of the two compensating ropes are hung with a plurality of balance weights through balance weight rods, the rear parts of the two upright post assemblies are respectively provided with a driving seat, the transverse straight ends of the two driving seats are respectively provided with an installation clamping groove matched with the balance weight rods, each installation clamping groove is internally provided with a swing limiting mechanism matched with the balance weight rods, and each driving seat is provided with an electric transmission mechanism matched with the swing limiting mechanism, and a retraction mechanism matched with the two driving seats is arranged above the beam assembly.
Preferably, limit pendulum mechanism is including setting gradually two cams in installation slot, two it is fixed mutually through the bolt between the cam, and two run through jointly between the cam and inserted pivot c, the bottom of driving the seat is fixed with supporting seat b, bearing b is installed to the straight end violently of supporting seat b, the lower extreme rotation of pivot c is installed in bearing b, pivot c overcoat is equipped with powerful torsional spring, the upper end of powerful torsional spring is fixed mutually with the cam that is located the bottom, the lower extreme of powerful torsional spring is fixed mutually with bearing b's terminal surface, the fixed rope running roller that has connect of upper end of pivot c.
Preferably, the electric transmission mechanism comprises a transmission cavity, a mounting opening for mounting the transmission cavity is formed in the driving seat, a piston block b and a piston block a are slidably mounted at the head end and the tail end of the transmission cavity respectively, hydraulic oil is filled in the part, located between the piston block a and the piston block b, in the transmission cavity, one end, close to the rotating shaft c, of the piston block b is connected with a steel wire pull rope, one end, far away from the piston block b, of the steel wire pull rope is connected to the outside of the rope rolling roller in a rolling mode, and an electric pushing component matched with the piston block a is mounted at the tail part of the vertical end of the transmission cavity.
Preferably, the electric pushing part comprises a motor b fixed at the tail part of the vertical end of the transmission cavity, an output shaft of the motor b is fixed with a threaded rod through a coupler, the threaded rod is sleeved with an internal thread sleeve in threaded connection, and the top end of the internal thread sleeve is fixedly connected with the bottom of the piston block a.
Preferably, the horizontal straight end of transmission cavity is embedded to be equipped with and supplies the sealing washer b of steel wire stay cord interlude, the vertical end of transmission cavity is embedded to be equipped with and supplies the sealing washer a of threaded rod interlude.
Preferably, the jack includes that the symmetry is installed at two supporting seat an of two stand subassemblies mutually opposite one side, two all install bearing a, two in the supporting seat a all rotate in the bearing a and install pivot a, and the round hole that supplies two fixed ann of pivot a to insert is seted up respectively to the tip of two drive seats, two the drive sprocket a has all been fixed to have cup jointed in the upper end of pivot a, crossbeam subassembly's top symmetry is provided with two bearing c, two all rotate in the bearing c and install pivot b, two pivot b all has fixed cover outward in proper order to have connect drive sprocket b and gear, two gear engagement connects, and connects through the drive chain belt transmission between every adjacent every drive sprocket b, drive sprocket a.
Preferably, a motor a is fixedly installed at the bottom of the cross beam assembly, and an output shaft of the motor a is fixedly connected with the lower end of one rotating shaft b through a coupler.
Preferably, the motor a and the motor b are both servo motors.
The invention has the beneficial effects that: 1. the limiting and the oblique swinging prevention of the down weight rod can be realized through a series of matching, and the weight rod can only be limited in the up-down type moving range as far as possible when the compensation rope and the weight rod are connected, so that the relative stability of the hung weight rod and the hung weight is ensured, and the continuous and normal work of the compensation rope is further ensured;
2. the limit of the weight rod stretching into the mounting clamping groove in the driving seat can be supported by the cooperation of the hydraulic transmission part and the electric pushing part in the transmission cavity, so that the manual labor is saved, and the device is stable and reliable.
Drawings
Fig. 1 is a schematic view of an installation of a fixing structure of a catenary steel column catenary lower anchoring device on an existing installation frame, which is provided by the invention;
FIG. 2 is a side view of the mounting of the mast assembly and the cross-beam assembly to a prior art mounting bracket;
FIG. 3 is a side partial structural cross-sectional view of a fixing structure of an anchor device under a carrier cable of an upper span bridge steel column according to the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 1;
FIG. 5 is an enlarged view of the main structure of FIG. 3;
FIG. 6 is an enlarged view at B in FIG. 5;
FIG. 7 is a schematic cross-sectional view of the actuator base according to the present invention;
FIG. 8 is a perspective view of the cam and latch of the present invention;
fig. 9 is a top view of the connection between the driving sprockets a and b and the gears according to the present invention.
In the figure: the device comprises a vertical column assembly 1, a beam assembly 2, a compensation rope 3, a right-angle support 4, a weight rod 5, a transmission chamber 6, a 601 mounting port, a driving seat 7, a supporting seat 8, a bearing a9, a rotating shaft a10, a round hole 1001, a transmission chain wheel a11, a transmission chain belt 12, a motor a13, a rotating shaft b14, a transmission chain wheel b15, a gear 16, a bearing c17, an installation clamping groove 18, a supporting seat b19, a bearing b20, a rotating shaft c21, a powerful torsion spring 22, a rope rolling roller 23, a steel wire pull rope 24, a cam 25, a bolt 26, a piston block a27, a piston block b28, hydraulic oil 29, a motor b30, a sealing ring a31, a threaded rod 32, an internal threaded sleeve 33, a sealing ring b34, a weight 35, a 36 mounting rack, a compensation pulley.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-9, a fixing structure of a catenary mooring device for an upper-span bridge steel column comprises a vertically arranged mounting frame 36, two compensating pulleys 37, two compensating ropes 3 which are respectively arranged corresponding to the two compensating pulleys 37 and are connected with catenary contact wires, two suspension insulators 38, two upright post assemblies 1 and a beam assembly 2 arranged at the top of the two upright post assemblies 1, wherein the beam assembly 2 is fixedly arranged on the mounting frame 36, the tail ends of the two compensating ropes 3 are respectively provided with a plurality of balance weights 35 through balance weights 5, the rear parts of the two upright post assemblies 1 are respectively provided with a driving seat 7, the transverse straight ends of the two driving seats 7 are respectively provided with a mounting clamping groove 18 matched with the balance weights 5, each mounting clamping groove 18 is internally provided with a swing limiting mechanism matched with the balance weights 5, and each driving seat 7 is provided with an electric driving mechanism matched with the swing limiting mechanism, the retracting mechanism matched with the two driving seats 7 is installed above the beam assembly 2, the balance weight 35 drives the balance weight rod 5 to be pulled down after being put down, the starting motor a13 drives one of the rotating shafts b14 to rotate, two gears 16 are meshed with the belt to rotate to realize reverse belt rotation of two driving chain wheels b15, reverse belt rotation of two driving chain wheels a11 can be realized through the transmission utility of the two driving chain belts 12, and the fastening of the two driving seats 7 to the two balance weight rods 5 can be realized through the belt rotation of the two driving seats 7 through the two rotating shafts a 10.
The suspension insulator 38 serves to connect the compensating rope 3 to the catenary contact wire, and the insulation structure is realized by the suspension insulator 38, separating the lower anchoring device from the live part of the catenary contact wire, thereby realizing electrical insulation.
The swing limiting mechanism comprises two cams 25 which are sequentially arranged in the mounting clamping groove 18, the two cams 25 are fixed through a bolt 26, a rotating shaft c21 is jointly inserted between the two cams 25 in a penetrating mode, a supporting seat b19 is fixed to the bottom of the driving seat 7, a bearing b20 is installed at the transverse straight end of the supporting seat b19, the lower end of the rotating shaft c21 is rotatably installed in a bearing b20, a strong torsion spring 22 is sleeved outside the rotating shaft c21, the upper end of the strong torsion spring 22 is fixed to the cam 25 located at the bottom, the lower end of the strong torsion spring 22 is fixed to the end face of the bearing b20, and a rope rolling wheel 23 is fixedly sleeved at the upper end of the rotating shaft c 21; the electric transmission mechanism comprises a transmission chamber 6, a mounting port 601 for mounting the transmission chamber 6 is formed in a driving seat 7, a piston block b28 and a piston block a27 are respectively mounted at the head end and the tail end of the transmission chamber 6 in a sliding mode, hydraulic oil 29 is filled in the part, located between the piston block a27 and the piston block b28, of the transmission chamber 6, one end, close to a rotating shaft c21, of the piston block b28 is connected with a steel wire pull rope 24, one end, far away from the piston block b28, of the steel wire pull rope 24 is connected to the outer portion of the rope rolling roller 23 in a rolling mode, and an electric pushing and moving part matched with the piston block a27 is mounted at the vertical; the electric pushing component comprises a motor b30 fixed at the tail of the vertical end of the transmission chamber 6, a threaded rod 32 is fixed on an output shaft of the motor b30 through a coupler, an internal threaded sleeve 33 is sleeved outside the threaded rod 32 and connected with the threaded rod through threads, the top end of the internal threaded sleeve 33 is fixedly connected with the bottom of the piston block a27, two motors b30 are started to drive the two threaded rods 32 to rotate to realize the upward pushing of the two internal threaded sleeves 33, so that the two piston blocks a27 move upwards to drive the two piston blocks b28 to approach each other, so that the two steel wire pull ropes 24 are retracted outside the two rope rolling rollers 23, and the two rotating shafts c21 drive the two groups of cams 25 to deflect relatively under the elastic action force of the two powerful torsion springs 22 and press against the outer edges of the two weight rods.
The horizontal straight end of the transmission chamber 6 is internally embedded with a sealing ring b34 for the steel wire pull rope 24 to penetrate, the vertical end of the transmission chamber 6 is internally embedded with a sealing ring a31 for the threaded rod 32 to penetrate, and the sealing ring a31 and the sealing ring b34 have the sealing and protecting performance for the transmission chamber 6.
The folding and unfolding mechanism comprises two supporting seats a8 symmetrically arranged on opposite sides of two upright post assemblies 1, bearings a9 are arranged in the two supporting seats a8, rotating shafts a10 are rotatably arranged in the two bearings a9, round holes 1001 for fixing and inserting two rotating shafts a10 are formed in the end parts of two driving seats 7 respectively, transmission chain wheels a11 are fixedly sleeved at the upper ends of the two rotating shafts a10, two bearings c17 are symmetrically arranged at the top of the cross beam assembly 2, rotating shafts b14 are rotatably arranged in the two bearings c17, transmission chain wheels b15 and gears 16 are fixedly sleeved outside the two rotating shafts b14 in sequence, the two gears 16 are meshed and connected, and each adjacent transmission chain wheel b15 and each transmission chain wheel a11 are in transmission connection through a transmission chain belt 12; the bottom of the beam assembly 2 is fixedly provided with a motor a13, an output shaft of the motor a13 is fixedly connected with the lower end of one rotating shaft b14 through a coupler, and when a contact net is disconnected, the motor a13 and the gear 16 can be locked under the action of suddenly increased force to prevent a weight from further falling.
The motor a13 and the motor b30 are both servo motors, and the servo motors can be controlled to perform relatively flexible forward and reverse rotation.
In the invention, the balance weight 35 drives the balance weight rod 5 to be pulled down, the starting motor a13 drives one of the rotating shafts b14 to rotate, so that the two gears 16 engage the belt to realize reverse belt rotation of the two driving sprockets b15, the reverse belt rotation of the two driving sprockets a11 can be realized by the driving effect of the two driving chain belts 12, thus, the two driving seats 7 can be buckled on the two balance weight rods 5 by rotating the two driving seats 7 through the two rotating shafts a10, then the two motors b30 are started to drive the two threaded rods 32 to rotate so as to push up the two internal threaded sleeves 33, the two piston blocks a27 move upwards to drive the two piston blocks b28 to approach each other, so that the two wire ropes 24 are retracted outside the two rope-rolling rollers 23, and the two rotating shafts c21 drive the two sets of cams 25 to deflect relatively under the elastic action of the two strong torsion springs 22 and press against the outer edges of the two weight levers 5.
Therefore, the falling weight rod 5 can be limited and prevented from swinging obliquely through a series of matching, and the falling weight rod 5 can only be limited in the up-down type moving range as far as possible when the compensation rope 3 and the falling weight rod 5 are connected, so that the relative stability of the hanging falling weight rod 5 and the falling weight 35 is ensured, and the continuous and normal work of the compensation rope 3 is further ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A fixing structure of an anchor device under a carrier cable of an upper-span bridge steel column comprises a vertically arranged mounting frame (36), two compensating pulleys (37), two compensating ropes (3) respectively arranged corresponding to the two compensating pulleys (37), two suspension insulators (38), two upright post assemblies (1) and a beam assembly (2) arranged at the tops of the two upright post assemblies (1), wherein the beam assembly (2) is fixedly arranged on the mounting frame (36), the tail ends of the two compensating ropes (3) are respectively provided with a plurality of balance weights (35) in a hanging manner through balance weight rods (5), the fixing structure is characterized in that a driving seat (7) is arranged behind the two upright post assemblies (1), mounting clamping grooves (18) matched with the balance weight rods (5) are respectively formed in the transverse straight ends of the two driving seats (7), and a balance limiting mechanism matched with the balance weight rods (5) is respectively arranged in each mounting clamping groove (18), and each driving seat (7) is provided with an electric transmission mechanism matched with the swing limiting mechanism, and a retraction mechanism matched with the two driving seats (7) is arranged above the beam assembly (2).
2. The fixing structure of the anchorage device for the messenger wire of the overpass steel column according to claim 1, wherein the swing limiting mechanism comprises two cams (25) sequentially disposed in the mounting slot (18), the two cams (25) are fixed by a bolt (26), a rotating shaft c (21) is commonly inserted between the two cams (25), a supporting seat b (19) is fixed at the bottom of the driving seat (7), a bearing b (20) is installed at the horizontal straight end of the supporting seat b (19), the lower end of the rotating shaft c (21) is rotatably mounted in the bearing b (20), a strong torsion spring (22) is sleeved outside the rotating shaft c (21), the upper end of the strong torsion spring (22) is fixed with the cam (25) at the bottom, and the lower end of the strong torsion spring (22) is fixed with the end face of the bearing b (20), and a rope rolling roller (23) is fixedly sleeved at the upper end of the rotating shaft c (21).
3. The fixing structure of the anchorage device for the catenary of the overpass steel column and the catenary of claim 2, it is characterized in that the electric transmission mechanism comprises a transmission chamber (6), the driving seat (7) is provided with a mounting hole (601) for mounting the transmission chamber (6), the head end and the tail end of the transmission chamber (6) are respectively provided with a piston block b (28) and a piston block a (27) in a sliding way, the part of the transmission chamber (6) between the piston block a (27) and the piston block b (28) is filled with hydraulic oil (29), one end of the piston block b (28) close to the rotating shaft c (21) is connected with a steel wire pull rope (24), one end of the steel wire pull rope (24) far away from the piston block b (28) is rolled and connected outside the rope rolling roller (23), and an electric pushing component matched with the piston block a (27) is arranged at the tail part of the vertical end of the transmission chamber (6).
4. The fixing structure of the anchorage device of the messenger wire of the upper-span bridge steel column according to claim 3, wherein the electric pushing component comprises a motor b (30) fixed at the tail of the vertical end of the transmission chamber (6), the output shaft of the motor b (30) is fixed with a threaded rod (32) through a coupler, the threaded rod (32) is sleeved and connected with an internally threaded sleeve (33) in a threaded manner, and the top end of the internally threaded sleeve (33) is fixedly connected with the bottom of the piston block a (27).
5. The fixing structure for the anchorage device of the catenary and the catenary of the bridge steel column as claimed in claim 4, wherein a sealing ring b (34) for inserting the steel wire rope (24) is embedded in the horizontal straight end of the transmission chamber (6), and a sealing ring a (31) for inserting the threaded rod (32) is embedded in the vertical end of the transmission chamber (6).
6. The fixing structure of the lower anchoring device of the carrier cable of the upper span bridge steel column according to claim 4, wherein the retracting mechanism comprises two supporting seats a (8) symmetrically installed on opposite sides of two upright post assemblies (1), bearings a (9) are installed in the two supporting seats a (8), rotating shafts a (10) are installed in the two bearings a (9) in a rotating manner, circular holes (1001) for the two rotating shafts a (10) to be fixedly inserted are respectively formed in the end portions of two driving seats (7), transmission chain wheels a (11) are fixedly sleeved at the upper ends of the two rotating shafts a (10), two bearings c (17) are symmetrically arranged at the top of the cross beam assembly (2), rotating shafts b (14) are installed in the two bearings c (17) in a rotating manner, and transmission chain wheels b (15) and gears (16) are sequentially fixedly sleeved outside the two rotating shafts b (14), the two gears (16) are meshed and connected, and each adjacent driving chain wheel b (15) and each adjacent driving chain wheel a (11) are in driving connection through a driving chain belt (12).
7. The fixing structure for the lower anchoring device of the catenary steel column messenger wire of the overpass bridge according to claim 6, wherein a motor a (13) is fixedly installed at the bottom of the cross beam assembly (2), and an output shaft of the motor a (13) is fixedly connected with the lower end of one rotating shaft b (14) through a coupler.
8. The fixing structure for the anchorage device of the messenger wire of the upper span bridge steel column according to claim 7, wherein the motor a (13) and the motor b (30) are both servo motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110358936.1A CN113085669A (en) | 2021-04-02 | 2021-04-02 | Fixing structure of upper-span bridge steel column carrier cable lower anchor device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110358936.1A CN113085669A (en) | 2021-04-02 | 2021-04-02 | Fixing structure of upper-span bridge steel column carrier cable lower anchor device |
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| CN202110358936.1A Pending CN113085669A (en) | 2021-04-02 | 2021-04-02 | Fixing structure of upper-span bridge steel column carrier cable lower anchor device |
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| CN202608587U (en) * | 2012-06-18 | 2012-12-19 | 陕西飞轮高铁装备股份有限公司 | Oil-free lubrication wind-resisting type weight limit frame |
| CN204136802U (en) * | 2014-10-23 | 2015-02-04 | 中铁第一勘察设计院集团有限公司 | On trough girder, contact net anchorage rectangle plummet is cut or polish jade with an emery wheel windproof anticreep and is stolen limit frame device |
| CN206211063U (en) * | 2016-12-01 | 2017-05-31 | 新疆维吾尔自治区送变电工程公司 | Smart grounding wire clamp |
| CN206589723U (en) * | 2017-03-30 | 2017-10-27 | 中铁建大桥工程局集团第五工程有限公司 | A kind of modern tram contact net falls the built-in compensation device of top |
| CN207556468U (en) * | 2017-11-09 | 2018-06-29 | 太原市鸿迅科贸有限公司 | For the on-line measurement system of electrification railway contact net A/B values |
| CN209719315U (en) * | 2019-04-16 | 2019-12-03 | 成都轨道建设管理有限公司 | A kind of contact net Dan Chengdan leads parallel connection and casts anchor collocation structure |
| CN111559280A (en) * | 2020-04-23 | 2020-08-21 | 石家庄京铁供电器材有限公司 | Railway contact net pulley block anchoring compensation device |
| CN112448191A (en) * | 2020-12-09 | 2021-03-05 | 国网山东省电力公司泰安供电公司 | Anti-drop ground thread end |
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