CN114572064A - Construction method and construction device for rigid suspension expansion joint of 27.5KV contact network - Google Patents
Construction method and construction device for rigid suspension expansion joint of 27.5KV contact network Download PDFInfo
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- CN114572064A CN114572064A CN202210207929.6A CN202210207929A CN114572064A CN 114572064 A CN114572064 A CN 114572064A CN 202210207929 A CN202210207929 A CN 202210207929A CN 114572064 A CN114572064 A CN 114572064A
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 239000000428 dust Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 25
- 238000001914 filtration Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect 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
- B60M1/24—Clamps; Splicers; Anchor tips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- 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
- B60M1/26—Compensation means for variation in length
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a construction method and a construction device for a rigid suspension expansion joint of a 27.5KV contact network, which comprises a first guide plate and a second guide plate, wherein a sliding groove is formed in the first guide plate, a guide sliding block is fixedly connected to the second guide plate, the guide sliding block is in sliding fit with the sliding groove, a first air duct is arranged on one side, away from the guide sliding block, of the sliding groove, one end, away from the guide sliding block, of the first air duct is communicated with a first air guide pipe, a negative pressure pump is arranged on one side, away from the sliding groove, of the first guide plate, and the air inlet end of the negative pressure pump is communicated with the first air guide pipe; one side of the guide sliding block close to the first air duct is fixedly connected with a second air duct, a booster pump is installed on the second guide plate, an air outlet of the booster pump is communicated with a third air duct, and the third air duct is communicated with the second air duct. The invention can reduce the sliding resistance of the guide sliding block in the sliding groove.
Description
Technical Field
The invention relates to the technical field of rail transit traction power supply contact networks, in particular to a construction method and a construction device for a rigid suspension expansion joint of a 27.5KV contact network.
Background
At present, in a rigid suspension power supply system for rail transit, a busbar expansion joint is connected in series between two anchor section busbars and used as a mechanical compensation and electrical continuous connection device for the busbars to generate length change due to thermal expansion and cold contraction, the compensation and adjustment are carried out on the change of the clearance between the busbars at two ends caused by temperature change, and the electrical and mechanical properties of the device need to ensure the seamless smooth and stable passing of a pantograph and meet the overall index of the system.
In the prior art, reference can be made to a Chinese patent with an authorization publication number of CN212219971U, and the Chinese patent discloses a construction method and a construction device for a rigid suspension expansion joint of a 27.5KV contact network, wherein the construction method and the construction device comprise two sections of busbars arranged in a rigid contact network system; the inner side surface of each guide plate is provided with a sliding chute extending towards the two ends, the inner side surfaces of the two guide plates are opposite and arranged side by side at intervals, and a clamping structure capable of sliding relatively is formed between the two guide plates through a guide sliding block embedded in the sliding chute; the two sections of busbars are respectively positioned at two ends of the clamping structure and are respectively and fixedly connected to different guide plates; the electric connecting device is arranged on the top or the side of the clamping structure and electrically connects the two guide plates.
However, since the slide groove is exposed to the air for a long time, dust in the air is likely to enter the slide groove, and thus there is a possibility that the resistance to the sliding of the guide slider in the slide groove increases.
Disclosure of Invention
In order to reduce the gliding resistance of guide slide block in the spout, on the one hand, this application provides a 27.5KV contact net rigid suspension expansion joint construction equipment, adopts following technical scheme:
a construction device for a rigid suspension expansion joint of a 27.5KV contact network comprises a first guide plate and a second guide plate, wherein a sliding groove is formed in the first guide plate, a guide sliding block is fixedly connected to the second guide plate, the guide sliding block is in sliding fit with the sliding groove, a first air duct is installed on one side, away from the guide sliding block, of the sliding groove, one end, away from the guide sliding block, of the first air duct is communicated with a first air guide pipe, a negative pressure pump is installed on one side, away from the sliding groove, of the first guide plate, and the air inlet end of the negative pressure pump is communicated with the first air guide pipe; the air outlet end of the negative pressure pump is communicated with a second air guide pipe, one side of the first guide plate is fixedly connected with a collection box, one side of the collection box is provided with an air inlet, the air inlet is communicated with the second air guide pipe, one side of the collection box, which is far away from the second air guide pipe, is provided with an air outlet, and a collection mechanism for collecting dust is arranged in the collection box; one side of the guide sliding block, which is close to the first air duct, is fixedly connected with a second air duct, a booster pump is installed on the second guide plate, and an air outlet of the booster pump is communicated with a third air guide pipe which is communicated with the second air duct.
Through adopting above-mentioned technical scheme, when needs clear away the dust in the spout, start negative pressure pump and booster pump to form the wind channel, and then in the dust entering collecting box in the spout of being convenient for, the setting of mechanism is collected to the rethread, and the operating personnel of being convenient for collects the dust and handles, and then clears away the dust in the spout, and then is convenient for reduce and leads the gliding resistance of slider in the spout.
Preferably, the collecting mechanism comprises a collecting frame, the collecting frame can be in sliding fit with the inner side wall of the collecting box, the opening of the collecting frame faces towards the air inlet, the collecting frame is far away from one side of the air inlet, a plurality of filtering holes are formed in the one side of the air inlet, a first rotating shaft is arranged at the opening of the collecting box in a rotating mode, a sealing cover is fixedly arranged on the first rotating shaft in a sleeved mode, a first torsion spring is arranged on the first rotating shaft in a sleeved mode, the two ends of the first torsion spring are fixedly connected to the sealing cover and the inner side of the collecting box relatively, the collecting box is provided with a limiting assembly used for limiting the sealing cover, and a driving assembly used for driving the collecting frame to move is arranged on the collecting box.
By adopting the technical scheme, when the dust is conveyed into the collection box from the second air guide pipe, the dust can be conveniently concentrated in the collection frame through the arrangement of the collection frame and the filter holes, so that the dust can be conveniently collected; the sealing cover is arranged, so that the possibility that the collecting frame falls off from the collecting box can be reduced conveniently; the sealing cover can be conveniently fixed by arranging the limiting component; through drive assembly's setting, can be convenient for drive and collect the frame and remove to be convenient for operating personnel gets and takes and collect the frame.
Preferably, the limiting assembly comprises a limiting pin, one side, away from the first rotating shaft, of the collecting box is provided with a first through hole, the limiting pin is in sliding fit with the inner side wall of the first through hole, one side, close to the first through hole, of the sealing cover is provided with a limiting groove, the limiting pin can be inserted into the inner side wall of the limiting groove, one end, away from the limiting groove, of the limiting pin is fixedly connected with a handle, a limiting spring is sleeved on the limiting pin, and two ends of the limiting spring are respectively and fixedly connected with the handle and the inner side, relative to the collecting box, of the handle.
Through adopting above-mentioned technical scheme, when needs are fixed sealed lid, manual drive handle removes earlier, and handle drive spacer pin removes, and spacing spring is in tensile state this moment, when the spacer pin aims at the spacing groove, loosens the handle, and the spacer pin is pegged graft in the spacing groove under spacing spring's elasticity effect this moment to be convenient for fix sealed lid.
Preferably, the driving assembly comprises a driving plate, the driving plate is in sliding fit with the inner side wall of the collecting box, the driving plate can abut against one side, away from the sealing cover, of the collecting frame, a driving spring is fixedly connected to one side, away from the collecting frame, of the driving plate, and one side, away from the driving plate, of the driving spring is fixedly connected to the inner side wall of the collecting box.
Through adopting above-mentioned technical scheme, when needs drive collection frame and remove, manual drive collection frame removes earlier, collects frame drive plate and removes, and drive spring is in compressed state this moment, loosens again and collects the frame, and the drive plate removes under drive spring's elasticity effect this moment to be convenient for drive collection frame and remove.
Preferably, a protection groove is formed in the inner side wall of the sliding groove, an elastic protection plate is arranged in the protection groove in a sliding mode, the second air duct can abut against the elastic protection plate, a lead screw is arranged in the protection groove in a rotating mode, the lead screw is in threaded fit with the elastic protection plate, and a rotating mechanism used for driving the lead screw to rotate is arranged in the protection groove.
Through adopting above-mentioned technical scheme, through the setting of elastic protection board and lead screw, when leading the slider and removing to first dryer, through rotary mechanism's setting, the drive lead screw that can be convenient for is rotatory, and lead screw drive elastic protection board removes to between first dryer and the second dryer to be convenient for play the cushioning effect to the second dryer.
Preferably, the rotating mechanism comprises a second rotating shaft, one side of the protection groove is provided with a second through hole, the second rotating shaft is rotatably arranged on the inner side wall of the second through hole, a second torsion spring is sleeved on the second rotating shaft, one end of the second torsion spring is fixedly connected with the second rotating shaft, the other end of the second torsion spring is fixedly connected with the inner side wall of the protection groove, one end of the second rotating shaft close to the screw rod is fixedly connected with a first bevel gear, a second bevel gear is sleeved and fixed on the screw rod, the first bevel gear is meshed with the second bevel gear, a flat gear is fixedly sleeved on the second rotating shaft, one side of the protection groove is provided with an installation groove, an elastic sheet is arranged in the installation groove and can be inserted into the tooth groove of the flat gear, and a separation component for driving the elastic sheet to be separated from the tooth grooves of the flat gear is arranged in the mounting groove.
Through adopting above-mentioned technical scheme, when needs drive lead screw is rotatory, earlier through the tooth's socket separation of separation subassembly drive flexure strip and spur gear, the spur gear rotates under the elasticity effect of torsional spring this moment, and spur gear drive second pivot rotates, and the first bevel gear of second pivot drive rotates, and first bevel gear drive second bevel gear rotates to be convenient for drive lead screw rotates.
Preferably, the separation assembly comprises a first inclined block, a horizontal groove is formed in one side, away from the elastic protection plate, of the mounting groove, the first inclined block is in sliding fit with the inner side wall of the horizontal groove, the first inclined block can abut against the elastic sheet, a vertical groove is formed in one side, away from the elastic sheet, of the horizontal groove, the vertical groove is communicated with the sliding groove, a second inclined block is arranged in the vertical groove in a sliding manner, a first inclined plane is arranged on one side, close to the sliding groove, of the second inclined block, and the first inclined plane can be matched with the outer side wall of the second air duct; the opposite inner sides of the first inclined block and the second inclined block are respectively provided with a second inclined surface and a third inclined surface, and the second inclined surface is matched with the third inclined surface; a first reset groove is formed in one side of the vertical groove, the second inclined block is close to a reset plate fixedly connected with one side of the first reset groove, the reset plate is in sliding fit with the inner side wall of the first reset groove, a reset spring is fixedly connected with one side of the reset plate, and the reset spring is far away from one side of the reset plate fixedly connected with the inner side wall of the first reset groove.
Through adopting above-mentioned technical scheme, when the second dryer removed to the second sloping block, under the effect on first inclined plane, the second dryer drive second sloping block removed, when the second sloping block butt in first sloping block, the first sloping block of second sloping block drive removed, when first sloping block butt to flexure strip to can be convenient for drive the tooth's socket separation of flexure strip and spur gear.
Preferably, a third through hole is formed in one side of the first guide plate, a second reset groove is formed in one side, away from the first bevel gear, of the second through hole, the second reset groove is communicated with the third through hole, a motor is installed on one side, close to the third through hole, of the first guide plate, an output shaft of the motor is fixedly connected with a third bevel gear, one end, away from the first bevel gear, of the second rotating shaft is fixedly connected with a fourth bevel gear, and the third bevel gear is meshed with the fourth bevel gear.
By adopting the technical scheme, when the elastic protection plate needs to be reset, the motor is started to drive the output shaft to rotate, the output shaft drives the third bevel gear to rotate, the third bevel gear drives the fourth bevel gear to rotate, the fourth bevel gear drives the second rotating shaft to rotate, the torsion spring is in a compression state at the moment, the second rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the screw rod to rotate, so that the elastic protection plate is convenient to reset; and then the second air duct is driven to be separated from the second inclined block, and the second inclined block moves under the elastic force action of the return spring, so that the first inclined block can move conveniently, and the elastic sheet can be conveniently inserted into the tooth grooves of the flat gear.
The application provides a construction method for a rigid suspension expansion joint of a 27.5KV contact network, which adopts the following technical scheme:
s1: pulling the first guide plate and the second guide plate of the expansion joint in opposite directions, placing the first guide plate and the second guide plate into a reserved space between the busbars at two ends, if the compensation amount of the anchor section is large, measuring the gap value of the busbars at two ends of the installation position of the expansion joint by using a tape measure tool, and adjusting the length of the expansion joint to the gap value size;
s2: butting the expansion joint with the bus bars at two ends, and fixing the expansion joint through an outer wrapping joint;
s3: and respectively fixing the reserved contact lines at the end parts of the bus bars between the expansion joint wire grooves and the pressing wire clamping plates.
To sum up, the application has the following beneficial effects:
1. when dust in the sliding chute needs to be removed, the negative pressure pump and the booster pump are started, so that an air channel is formed, the dust in the sliding chute can conveniently enter the collecting box, and then an operator can conveniently collect and process the dust through the arrangement of the collecting mechanism, so that the dust in the sliding chute can be removed, and the resistance of the guide sliding block in the sliding chute can be conveniently reduced;
2. when the dust is conveyed into the collection box from the second air guide pipe, the dust can be conveniently concentrated in the collection frame through the arrangement of the collection frame and the filter holes, so that the dust can be conveniently collected; the sealing cover is arranged, so that the possibility that the collecting frame falls off from the collecting box can be reduced conveniently; the sealing cover can be conveniently fixed by arranging the limiting component; through the arrangement of the driving assembly, the collection frame can be conveniently driven to move, so that an operator can conveniently take the collection frame;
3. when the elastic protection plate needs to be reset, the motor is started to drive the output shaft to rotate, the output shaft drives the third bevel gear to rotate, the third bevel gear drives the fourth bevel gear to rotate, the fourth bevel gear drives the second rotating shaft to rotate, the torsion spring is in a compression state at the moment, the second rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the screw to rotate, so that the elastic protection plate is reset conveniently; and then the second air duct is driven to be separated from the second inclined block, and the second inclined block moves under the elastic force action of the return spring, so that the first inclined block can move conveniently, and the elastic sheet can be conveniently inserted into the tooth grooves of the flat gear.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a sectional view showing the collecting mechanism in the present embodiment;
fig. 3 is a schematic structural diagram illustrating a second air duct in the present embodiment;
fig. 4 is a sectional view showing the rotating mechanism in the present embodiment.
Description of the reference numerals: 1. a first baffle; 11. a chute; 111. a protective slot; 112. an elastic protection plate; 113. a lead screw; 121. a first air duct; 122. a first air duct; 123. a negative pressure pump; 124. a second air duct; 131. a third through hole; 132. a second reset groove; 133. a motor; 134. a third bevel gear; 135. a fourth bevel gear; 2. a second baffle; 211. a guide slider; 212. a second air duct; 213. a booster pump; 214. a third air duct; 3. a collection mechanism; 31. a collection box; 311. an air inlet; 312. an air outlet; 321. a collection frame; 322. a filtration pore; 323. a first rotating shaft; 324. a sealing cover; 325. a first torsion spring; 33. a limiting component; 331. a spacing pin; 332. a first through hole; 333. a limiting groove; 334. a handle; 335. a limiting spring; 34. a drive assembly; 341. a drive plate; 342. a drive spring; 4. a rotation mechanism; 411. a second rotating shaft; 412. a second through hole; 413. a second torsion spring; 414. a first bevel gear; 415. a second bevel gear; 416. a flat gear; 417. mounting grooves; 418. an elastic sheet; 42. a separation assembly; 421. a first swash block; 422. a horizontal groove; 423. a vertical slot; 424. a second swash block; 425. a first inclined plane; 426. a second inclined plane; 427. a third inclined plane; 431. a first reset groove; 432. a reset plate; 433. a return spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that, as used in the following description, the terms "front," "rear," "left," "right," "upper," "lower," "bottom" and "top" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The invention discloses a construction device for a rigid suspension expansion joint of a 27.5KV contact network, which comprises a first guide plate 1 and a second guide plate 2, wherein the first guide plate 1 is provided with a sliding groove 11, the sliding groove 11 extends along the horizontal direction, as shown in a combined figure 3, one side, close to the sliding groove 11, of the second guide plate 2 is fixedly connected with a guide sliding block 211, the cross section of the guide sliding block 211 is circular and is arranged along the axial direction of the sliding groove 11, and the guide sliding block 211 is in sliding fit with the inner side wall of the sliding groove 11 along the axial direction of the sliding groove 11.
As shown in fig. 1 and fig. 2, a first air duct 121 is installed on one side of the chute 11, which is far away from the guide slider 211, by a bolt, the cross section of the first air duct 121 is circular, a first air guide pipe 122 is communicated with one end of the first air duct 121, which is far away from the guide slider 211, the cross section of the first air guide pipe 122 is circular, a negative pressure pump 123 is installed on one side of the first guide plate 1, which is far away from the chute 11, by a bolt, and an air inlet end of the negative pressure pump 123 is communicated with one end of the first air guide pipe 122, which is far away from the first air duct 121; the air outlet end of the negative pressure pump 123 is communicated with a second air guide pipe 124, the cross section of the second air guide pipe 124 is in a circular ring shape and is arranged along the vertical direction, one side, close to the negative pressure pump 123, of the first guide plate 1 is fixedly connected with a collection box 31, the collection box 31 is square, the opening direction of the collection box 31 faces the direction away from the chute 11, an air inlet 311 is formed in the top of the collection box 31, the cross section of the air inlet 311 is circular and extends along the vertical direction, the air inlet 311 is communicated with one end, away from the negative pressure pump 123, of the second air guide pipe 124, of the collection box 31, an air outlet 312 is formed in one side, away from the second air guide pipe 124, of the collection box 31, the cross section of the air outlet 312 is circular and extends along the vertical direction, and a collection mechanism 3 for collecting dust is arranged in the collection box 31.
As shown in fig. 1 and 3, a second air duct 212 is fixedly connected to one side of the guide slider 211 close to the first air duct 121, the cross section of the second air duct 212 is circular and is arranged along the axial direction of the chute 11, a booster pump 213 is mounted on one side of the second guide plate 2 away from the guide slider 211 through a bolt, an air outlet end of the booster pump 213 is communicated with a third air guide pipe 214, the cross section of the third air guide pipe 214 is circular, and one end of the third air guide pipe 214 away from the booster pump 213 is communicated with the second air duct 212.
When the dust in the spout 11 needs to be cleared away, the negative pressure pump 123 and the booster pump 213 are started to form an air duct, so that the dust in the spout 11 can enter the collecting box 31 conveniently, the dust can be collected and processed by the operator conveniently through the arrangement of the collecting mechanism 3, so that the dust in the spout 11 can be cleared away, and the sliding resistance of the guide sliding block 211 in the spout 11 can be reduced conveniently.
As shown in fig. 1 and 2, the collecting mechanism 3 includes a collecting frame 321, the collecting frame 321 is square and has an opening facing a direction close to the air inlet 311, the collecting frame 321 can be slidably fitted with an inner sidewall of the collecting box 31 along a length direction of the collecting box 31, one side of the collecting frame 321 close to the air outlet 312 is provided with a plurality of filtering holes 322, the collecting frame 321 is communicated with the air outlet 312 through the filtering holes 322, the filtering holes 322 are sequentially arranged in a matrix shape at equal intervals, a cross section of each filtering hole 322 is circular and extends along a vertical direction, an opening of the collecting box 31 is rotatably provided with a first rotating shaft 323 through a bearing, a cross section of the first rotating shaft 323 is circular and is arranged along the length direction of the collecting box 31, a sealing cover 324 is fixedly sleeved on an outer sidewall of the first rotating shaft 323, a cross section of the sealing cover 324 is square, a first torsion spring 325 is sleeved on the first rotating shaft 323, the first torsion spring 325 is arranged along an axial direction of the first rotating shaft 323, one end of the first torsion spring 325 is fixedly connected to the sealing cover 324, the other end is fixedly connected to the collection box 31, a limiting component 33 for limiting the sealing cover 324 is arranged in the collection box 31, and a driving component 34 for driving the collection frame 321 to move is arranged in the collection box 31.
When the dust is conveyed from the second air guiding pipe 124 into the collection box 31, the dust can be conveniently collected in the collection frame 321 by the arrangement of the collection frame 321 and the filtering holes 322, so that the dust can be conveniently collected; the sealing cover 324 is arranged, so that the possibility that the collecting frame 321 falls off from the collecting box 31 can be reduced; the sealing cover 324 can be conveniently fixed by the arrangement of the limiting assembly 33; through the arrangement of the driving assembly 34, the collection frame 321 can be conveniently driven to move, so that the collection frame 321 can be conveniently taken and placed by an operator.
As shown in fig. 1 and 2, the limiting component 33 includes a limiting pin 331, the cross section of the limiting pin 331 is circular and is arranged along the vertical direction, a first through hole 332 is formed in one side of the collecting box 31 far away from the first rotating shaft 323, the cross section of the first through hole 332 is circular and extends along the vertical direction, the limiting pin 331 is in sliding fit with the inner side wall of the first through hole 332 along the vertical direction, a limiting groove 333 is formed in one side of the sealing cover 324 near the first through hole 332, the cross section of the limiting groove 333 is circular and extends along the vertical direction, the limiting pin 331 can be inserted into the inner side wall of the limiting groove 333, a handle 334 is fixedly connected to one end of the limiting pin 331 far away from the limiting groove 333, the handle 334 is in a round cake shape and is arranged along the vertical direction, a limiting spring 335 is sleeved on the limiting pin 331, and two ends of the limiting spring 335 are respectively and fixedly connected to the inner sides of the handle 334 and the collecting box 31.
When the sealing cover 324 needs to be fixed, the handle 334 is manually driven to move, the handle 334 drives the limit pin 331 to move, the limit spring 335 is in a stretching state at the moment, when the limit pin 331 aligns to the limit groove 333, the handle 334 is loosened, and at the moment, the limit pin 331 is inserted into the limit groove 333 under the elastic force action of the limit spring 335, so that the sealing cover 324 is fixed conveniently.
As shown in fig. 1 and 2, the driving assembly 34 includes a driving plate 341, the driving plate 341 is square and is disposed along the vertical direction, the driving plate 341 is in sliding fit with the inner sidewall of the collecting box 31 along the width direction of the collecting box 31, the driving plate 341 can abut against one side of the collecting frame 321 away from the sealing cover 324, one side of the driving plate 341 away from the collecting frame 321 is fixedly connected with a driving spring 342, the driving spring 342 is disposed along the length direction of the collecting box 31, and one side of the driving spring 342 away from the driving plate 341 is fixedly connected with the sidewall of the collecting box 31.
When the collecting frame 321 needs to be driven to move, the collecting frame 321 is manually driven to move, the collecting frame 321 drives the driving plate 341 to move, the driving spring 342 is in a compressed state at the moment, and then the collecting frame 321 is released, and the driving plate 341 moves under the elastic force of the driving spring 342 at the moment, so that the collecting frame 321 is driven to move conveniently.
As shown in fig. 1 and 4, a protection groove 111 has been seted up to the inside wall of spout 11, the cross section of protection groove 111 is square and extends along the vertical direction, it is provided with elasticity protection shield 112 to slide along the vertical direction in protection groove 111, elasticity protection shield 112 is square and sets up along the vertical direction, one side that second dryer 212 is close to first dryer 121 can butt in the one side that elasticity protection shield 112 kept away from first dryer 121, the inside wall of protection groove 111 is provided with lead screw 113 through bearing rotation, lead screw 113 sets up along the vertical direction, lead screw 113 runs through elasticity protection shield 112 setting and lead screw 113 and elasticity protection shield 112 screw-thread fit, be provided with in the protection groove 111 and be used for driving the rotatory rotary mechanism 4 of lead screw 113.
Through the setting of elasticity protection shield 112 and lead screw 113, when guide slider 211 removed to first dryer 121, through the setting of rotary mechanism 4, can be convenient for drive lead screw 113 rotatory, lead screw 113 drive elasticity protection shield 112 removes to between first dryer 121 and the second dryer 212 to be convenient for play the cushioning effect to second dryer 212.
As shown in fig. 1 and 4, the rotating mechanism 4 includes a second rotating shaft 411, a cross section of the second rotating shaft 411 is circular and is disposed along a length direction of the protection slot 111, a second through hole 412 is disposed on a right side of the protection slot 111, the cross section of the second through hole 412 is circular and extends along a width direction of the elastic protection plate 112, the second rotating shaft 411 is rotatably disposed on an inner side wall of the second through hole 412 through a bearing, an outer side wall of the second rotating shaft 411 is sleeved with a second torsion spring 413, the second torsion spring 413 is in a compressed state in an initial state, one end of the second torsion spring 413 is fixedly connected to the second rotating shaft 411, the other end of the second torsion spring 413 is fixedly connected to a side wall of the protection slot 111 close to the second through hole 412, one end of the second rotating shaft 411 close to the lead screw 113 is fixedly connected to a first bevel gear 414, an outer side wall of the lead screw 113 is sleeved with a second bevel gear 415, and the first bevel gear 414 is engaged with the second bevel gear 415.
As shown in fig. 1 and 4, a flat gear 416 is fixedly sleeved on the second rotating shaft 411, a mounting groove 417 is formed in one side of the protection groove 111 close to the sliding groove 11, the cross section of the mounting groove 417 is square and extends in the vertical direction, an elastic sheet 418 is fixedly connected to the inner side wall of the mounting groove 417, the elastic sheet 418 can only bend in the axial direction of the second rotating shaft 411, the elastic sheet 418 is arranged in the vertical direction, the elastic sheet 418 can be inserted into the tooth grooves of the flat gear 416, and a separating assembly 42 for driving the elastic sheet 418 to be separated from the tooth grooves of the flat gear 416 is arranged in the mounting groove 417.
When the screw 113 needs to be driven to rotate, the elastic piece 418 is driven to be separated from the tooth grooves of the flat gear 416 through the separating assembly 42, at this time, the flat gear 416 rotates under the elastic force of the torsion spring, the flat gear 416 drives the second rotating shaft 411 to rotate, the second rotating shaft 411 drives the first bevel gear 414 to rotate, and the first bevel gear 414 drives the second bevel gear 415 to rotate, so that the screw 113 is driven to rotate conveniently.
As shown in fig. 1 and 4, the separating assembly 42 includes a first inclined block 421, the cross section of the first inclined block 421 is square and is disposed along the axial direction of the second rotating shaft 411, a horizontal groove 422 is disposed on a side of the mounting groove 417 away from the elastic protection plate 112, the cross section of the horizontal groove 422 is square and extends along the axial direction of the second rotating shaft 411, the first inclined block 421 is in sliding fit with the inner side wall of the horizontal groove 422 along the axial direction of the second rotating shaft 411, a side of the first inclined block 421 close to the mounting groove 417 can be abutted against the elastic sheet 418, a side of the horizontal groove 422 away from the elastic sheet 418 is disposed with a vertical groove 423, the cross section of the vertical groove 423 is square and extends along the vertical direction, the vertical groove 423 is communicated with the sliding groove 11, the second inclined block 424 is slidably disposed in the vertical direction in the vertical groove 423, the cross section of the second inclined block 424 is square and is disposed along the vertical direction, a side of the second inclined block 424 close to the sliding groove 11 is disposed with a first inclined surface 425, the first inclined surface 425 can be matched with the outer side wall of the second air duct 212.
As shown in fig. 1 and 4, the opposite inner sides of the first incline block 421 and the second incline block 424 are respectively provided with a second incline 426 and a third incline 427, and the second incline 426 cooperates with the third incline 427; first groove 431 that resets has been seted up to one side of vertical groove 423, first groove 431 that resets cross-section personally submits squarely and extends along vertical direction, one side fixedly connected with that second sloping block 424 is close to first groove 431 that resets 432, it sets up along the horizontal direction to reset plate 432, reset plate 432 and the inside wall of first groove 431 that resets are along vertical direction sliding fit, the top fixedly connected with reset spring 433 that resets 432, reset spring 433 sets up along vertical direction, one side fixed connection in the inside wall of first groove 431 that resets is kept away from to reset spring 433 that resets.
When the second air duct 212 moves to the second inclined block 424, the second air duct 212 drives the second inclined block 424 to move under the action of the first inclined surface 425, when the second inclined block 424 abuts against the first inclined block 421, the second inclined block 424 drives the first inclined block 421 to move, and when the first inclined block 421 abuts against the elastic piece 418, the elastic piece 418 and the tooth grooves of the flat gear 416 can be conveniently driven to be separated.
As shown in fig. 1 and 4, the top of the first deflector 1 is provided with a third through hole 131, the cross section of the third through hole 131 is circular and extends in the vertical direction, one side of the second through hole 412, which is away from the first bevel gear 414, is provided with a second reset groove 132, the cross section of the second reset groove 132 is square and extends in the vertical direction, the second reset groove 132 is communicated with the third through hole 131, one side of the first deflector 1, which is close to the third through hole 131, is provided with a motor 133 through a bolt, an output shaft of the motor 133 is fixedly connected with a third bevel gear 134, one end of the second rotating shaft 411, which is away from the first bevel gear 414, is fixedly connected with a fourth bevel gear 135, and the third bevel gear 134 is meshed with the fourth bevel gear 135.
When the elastic protection plate 112 needs to be reset, the motor 133 is started to drive the output shaft to rotate, the output shaft drives the third bevel gear 134 to rotate, the third bevel gear 134 drives the fourth bevel gear 135 to rotate, the fourth bevel gear 135 drives the second rotating shaft 411 to rotate, at this time, the torsion spring is in a compression state, the second rotating shaft 411 drives the first bevel gear 414 to rotate, the first bevel gear 414 drives the second bevel gear 415 to rotate, and the second bevel gear 415 drives the screw 113 to rotate, so that the elastic protection plate 112 is convenient to reset; and then the second air duct 212 is driven to separate from the second swash block 424, and the second swash block 424 moves under the elastic force of the return spring 433, so that the first swash block 421 moves conveniently, and the elastic piece 418 is conveniently inserted into the tooth slot of the flat gear 416.
The working principle is as follows:
when the dust in the spout 11 needs to be cleared away, the negative pressure pump 123 and the booster pump 213 are started to form an air duct, so that the dust in the spout 11 can enter the collecting box 31 conveniently, the dust can be collected and processed by the operator conveniently through the arrangement of the collecting mechanism 3, so that the dust in the spout 11 can be cleared away, and the sliding resistance of the guide sliding block 211 in the spout 11 can be reduced conveniently.
The embodiment of the application also discloses a construction method of the rigid suspension expansion joint of the 27.5KV contact network, which comprises the following steps:
s1: if the compensation amount of the anchor section is less than 500mm, pulling the first guide plate and the second guide plate of the expansion joint to positions with the distance of 3000mm between the two end parts in opposite directions, and then placing the two end parts in a reserved 3-meter position between the bus bars at the two ends, if the compensation amount of the anchor section is large, measuring the gap value of the bus bars at the two ends of the installation part of the expansion joint by adopting a tape measure tool, and adjusting the length of the expansion joint to the gap value size;
s2: butting the expansion joint with busbars at two ends, fixing the expansion joint with the busbars at two ends through an outer-wrapping joint and an M12 bolt, ensuring that the expansion joint is butted and tightly attached with the busbars at two ends, and fastening a torque 56 N.m by using an M12 bolt;
s3: and respectively fixing the reserved contact lines at the end parts of the bus bars between the expansion joint wire grooves and the wire pressing clamping plates through M8 bolts, and fastening the M8 bolts with the torque of 13 N.m.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a 27.5KV contact net rigid suspension expansion joint construction equipment, includes first guide plate (1) and second guide plate (2), spout (11) have been seted up on first guide plate (1), slider (211) is led to second guide plate (2) fixedly connected with, slider (211) with spout (11) sliding fit, its characterized in that lead: a first air duct (121) is installed on one side, away from the guide sliding block (211), of the sliding chute (11), a first air guide pipe (122) is communicated with one end, away from the guide sliding block (211), of the first air duct (121), a negative pressure pump (123) is installed on one side, away from the sliding chute (11), of the first guide plate (1), and an air inlet end of the negative pressure pump (123) is communicated with the first air guide pipe (122); the air outlet end of the negative pressure pump (123) is communicated with a second air guide pipe (124), one side of the first guide plate (1) is fixedly connected with a collection box (31), one side of the collection box (31) is provided with an air inlet (311), the air inlet (311) is communicated with the second air guide pipe (124), one side of the collection box (31) far away from the second air guide pipe (124) is provided with an air outlet (312), and a collection mechanism (3) for collecting dust is arranged in the collection box (31); one side, close to the first air duct (121), of the guide slider (211) is fixedly connected with a second air duct (212), a booster pump (213) is mounted on the second guide plate (2), an air outlet (312) of the booster pump (213) is communicated with a third air guide pipe (214), and the third air guide pipe (214) is communicated with the second air duct (212).
2. The construction device for the rigid suspension expansion joint of the 27.5KV contact network according to claim 1, is characterized in that: the collecting mechanism (3) comprises a collecting frame (321), the collecting frame (321) can be in sliding fit with the inner side wall of the collecting box (31), the opening of the collecting frame (321) is arranged towards the air inlet (311), one side of the collecting frame (321) far away from the air inlet (311) is provided with a plurality of filtering holes (322), a first rotating shaft (323) is rotatably arranged at the opening of the collecting box (31), a sealing cover (324) is sleeved and fixed on the first rotating shaft (323), a first torsion spring (325) is sleeved on the first rotating shaft (323), two ends of the first torsion spring (325) are respectively and fixedly connected with the relative inner sides of the sealing cover (324) and the collecting box (31), the collecting box (31) is provided with a limiting component (33) used for limiting the sealing cover (324), the collecting box (31) is provided with a driving component (34) for driving the collecting frame (321) to move.
3. The construction device for the rigid suspension expansion joint of the 27.5KV contact network according to claim 2, is characterized in that: the limiting assembly (33) comprises a limiting pin (331), a first through hole (332) is formed in one side, away from the first rotating shaft (323), of the collecting box (31), the limiting pin (331) is in sliding fit with the inner side wall of the first through hole (332), a limiting groove (333) is formed in one side, close to the first through hole (332), of the sealing cover (324), the limiting pin (331) can be inserted into the inner side wall of the limiting groove (333), one end, away from the limiting groove (333), of the limiting pin (331) is fixedly connected with a handle (334), a limiting spring (335) is sleeved on the limiting pin (331), and two ends of the limiting spring (335) are fixedly connected with the handle (334) and the inner side, relative to the collecting box (31), of the limiting spring respectively.
4. The construction device for the rigid suspension expansion joint of the 27.5KV contact network according to claim 2, is characterized in that: the driving assembly (34) comprises a driving plate (341), the driving plate (341) is in sliding fit with the inner side wall of the collecting box (31), the driving plate (341) can abut against one side, away from the sealing cover (324), of the collecting frame (321), one side, away from the collecting frame (321), of the driving plate (341) is fixedly connected with a driving spring (342), and one side, away from the driving plate (341), of the driving spring (342) is fixedly connected with the inner side wall of the collecting box (31).
5. The construction device for the rigid suspension expansion joint of the 27.5KV overhead line system according to claim 1 is characterized in that: protection groove (111) have been seted up to the inside wall of spout (11), it is provided with elasticity protection shield (112) to slide in protection groove (111), second dryer (212) can the butt in elasticity protection shield (112), protection groove (111) internal rotation is provided with lead screw (113), lead screw (113) with elasticity protection shield (112) screw-thread fit, be provided with in protection groove (111) and be used for the drive rotary mechanism (4) that lead screw (113) are rotatory.
6. The construction device for the rigid suspension expansion joint of the 27.5KV contact network according to claim 5, is characterized in that: the rotating mechanism (4) comprises a second rotating shaft (411), a second through hole (412) is formed in one side of the protection groove (111), the second rotating shaft (411) is rotatably arranged on the inner side wall of the second through hole (412), a second torsion spring (413) is sleeved on the second rotating shaft (411), one end of the second torsion spring (413) is fixedly connected to the second rotating shaft (411), the other end of the second torsion spring is fixedly connected to the inner side wall of the protection groove (111), one end, close to the lead screw (113), of the second rotating shaft (411) is fixedly connected with a first bevel gear (414), a second bevel gear (415) is fixedly sleeved on the lead screw (113), the first bevel gear (414) is meshed with the second bevel gear (415), a flat gear (416) is fixedly sleeved on the second rotating shaft (411), a mounting groove (417) is formed in one side of the protection groove (111), an elastic sheet (418) is arranged in the mounting groove (417), the elastic sheet (418) can be inserted into a tooth groove of the flat gear (416), and a separation component (42) used for driving the elastic sheet (418) to be separated from the tooth groove of the flat gear (416) is arranged in the mounting groove (417).
7. The construction device for the rigid suspension expansion joint of the 27.5KV contact network of claim 6, wherein the construction device comprises: the separating assembly (42) comprises a first inclined block (421), a horizontal groove (422) is formed in one side, away from the elastic protection plate (112), of the mounting groove (417), the first inclined block (421) is in sliding fit with the inner side wall of the horizontal groove (422), the first inclined block (421) can abut against the elastic sheet (418), a vertical groove (423) is formed in one side, away from the elastic sheet (418), of the horizontal groove (422), the vertical groove (423) is communicated with the sliding groove (11), a second inclined block (424) is arranged in the vertical groove (423) in a sliding mode, a first inclined surface (425) is arranged on one side, close to the sliding groove (11), of the second inclined block (424), and the first inclined surface (425) can be matched with the outer side wall of the second air duct (212); a second inclined surface (426) and a third inclined surface (427) are respectively arranged on the opposite inner sides of the first inclined block (421) and the second inclined block (424), and the second inclined surface (426) is matched with the third inclined surface (427); first groove (431) that resets has been seted up to one side of vertical groove (423), second sloping block (424) are close to one side fixedly connected with that first resets groove (431) resets and reset board (432), reset board (432) with the inside wall sliding fit that first resets groove (431), reset one side fixedly connected with reset spring (433) of board (432), reset spring (433) are kept away from one side fixed connection that resets board (432) in the inside wall that first resets groove (431).
8. The construction device for the rigid suspension expansion joint of the 27.5KV contact network of claim 6, wherein the construction device comprises: third through-hole (131) have been seted up to one side of first guide plate (1), second reset groove (132) have been seted up to one side that first bevel gear (414) was kept away from in second through-hole (412), second reset groove (132) with third through-hole (131) are linked together, motor (133) are installed to one side that first guide plate (1) is close to third through-hole (131), the output shaft fixedly connected with third bevel gear (134) of motor (133), one end fixedly connected with fourth bevel gear (135) of first bevel gear (414) are kept away from in second pivot (411), third bevel gear (134) with fourth bevel gear (135) mesh mutually.
9. A construction method for a rigid suspension expansion joint of a 27.5KV contact network is characterized by comprising the following steps: the method comprises the following construction steps:
s1: pulling a first guide plate (1) and a second guide plate (2) of the expansion joint in opposite directions, placing the first guide plate and the second guide plate into a reserved space between busbars at two ends, if the compensation amount of an anchor section is large, measuring the gap value of the busbars at two ends of the installation position of the expansion joint by using a tape measure tool, and adjusting the length of the expansion joint to the gap value;
s2: butting the expansion joint with the bus bars at two ends, and fixing the expansion joint through an outer wrapping joint;
s3: and respectively fixing the reserved contact lines at the end parts of the bus bars between the expansion joint wire grooves and the pressing wire clamping plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207929.6A CN114572064B (en) | 2022-03-03 | 2022-03-03 | Construction method and construction device for rigid suspension expansion joint of 27.5KV overhead line system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207929.6A CN114572064B (en) | 2022-03-03 | 2022-03-03 | Construction method and construction device for rigid suspension expansion joint of 27.5KV overhead line system |
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| CN114572064A true CN114572064A (en) | 2022-06-03 |
| CN114572064B CN114572064B (en) | 2024-02-06 |
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| CN114572064B (en) | 2024-02-06 |
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