CN204895175U - Contact net direction formula suspension pulley device - Google Patents
Contact net direction formula suspension pulley device Download PDFInfo
- Publication number
- CN204895175U CN204895175U CN201520632957.8U CN201520632957U CN204895175U CN 204895175 U CN204895175 U CN 204895175U CN 201520632957 U CN201520632957 U CN 201520632957U CN 204895175 U CN204895175 U CN 204895175U
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- guide roller
- roller frame
- ears
- track adjusting
- utility
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Abstract
The utility model relates to a contact net direction formula suspension pulley device. Use ordinary suspension pulley to adopt articulated connected mode at present, it is serious that wearing and tearing are put to long -term wind between spare part, and through 2 years spacing pins of back bolt of on -the -spot observation wearing and tearing 60%, spare part body through -hole is out of shape seriously. The utility model discloses including and being the U -shaped pulley frame that just open side down, the top surface upwards is provided with the connection ears of a pair of parallel, offers corresponding through -hole, interior embedding interference fit self -lubricating bearing on the connection ears, two axial horizontally leading wheels about being provided with in the pulley frame are installed in the pulley frame through the round pin axle, the leading wheel middle part is concave time, forms the dead slot that passes the wire between two upper and lower leading wheels. The utility model discloses can adjust by oneself according to the atress direction of wire, have the free drunkenness of with temperature changes, the effect of accurate direction, it can effectual reductions a spare part friction and wear to connect in the ears interference fit self -lubricating bearing, improves the life of this device.
Description
Technical field
The utility model belongs to electrification railway contact net technical field, is specifically related to a kind of contact system guide type suspension pulley device.
Background technology
Common electrical railway contact line suspension pulley adopts single-sheaved block to be fixed by bearing pin and guide roller frame, and wire is arranged in the groove of pulley, and upper end adopts position-limitting pin restriction wire to take off groove.Guide roller frame is installed on bracket or is suspended on the positioning rope of top, is and is articulated and connected.Common suspension pulley very easily deflects when the change of wire Impact direction or wind pendulum, and wire takes off groove, eccentric wear, even with phenomenons such as position-limitting pin frictions, the faults such as pin once occurred to be rubbed, wire strand breakage, have a strong impact on train operating safety, Long-Time Service forms potential safety hazard.
Summary of the invention
The purpose of this utility model is to provide a kind of contact system guide type suspension pulley device, the common suspension pulley of old-fashioned monocycly can be replaced completely, and can be used for additive wire (AF) suspension, solve the problem such as strong wind district and prior art middle pulley eccentric wear, clamping stagnation, de-groove.
The technical scheme that the utility model adopts is:
A kind of contact system guide type suspension pulley device, is characterized in that:
Include and take the shape of the letter U and the guide roller frame that Open Side Down, guide roller frame is made up of the connecting panel that the frame plate that two panels is parallel to each other is vertical with the two with two panels frame plate top;
The connecting panel end face of guide roller frame is upwards provided with pair of parallel connection ears, connects on ears and offers corresponding through hole, connects ears and is embedded in interference fit self-lubricating bearing;
Be provided with the track adjusting wheel of upper and lower two axial levels in guide roller frame, be installed on guide roller frame by bearing pin, the end that bearing pin is positioned at outside guide roller frame is tightened up by spring cotter, nut and bullet pad;
, between upper and lower two track adjusting wheels, form the dead slot through wire in the middle part of track adjusting wheel recessed time.
The bearing pin of track adjusting wheel embeds interference fit outward self-lubricating bearing.
Connect ears employing and be not less than 40Cr alloy steel material;
Guide roller frame adopts the carbon structural steels being not less than Q235B;
Track adjusting wheel adopts nylon 6 or casting copper alloy material;
Bearing pin adopts and is not less than 40Cr alloy steel material.
The utility model has the following advantages:
The utility model according to the Impact direction of wire from Row sum-equal matrix, can have and vary with temperature free play, accurately the effect of guiding, and connecting interference fit self-lubricating bearing in ears can reduce skimming wear between parts by actv., improves the service life of this device.Wire is placed between two track adjusting wheel, can according to direction change from the stressed friction wheel of Row sum-equal matrix, and between two-wheel, gap wire rationally can not occur and takes off wheel accident, and driving wheel and position-limited wheel are all interchangeable.
The utility model comprises the connection ears embedding interference fit self-lubricating bearing and welds with guide roller frame, and two leading sheave is fixed by double pin axle, can suspend catenary in midair, also can be used for additive wire system V-type hanging position, wind district and hangs AF line.
Accompanying drawing explanation
Bracket uses schematic diagram of the present utility model to Fig. 1.
Fig. 2 is that additive wire AF line hangs use schematic diagram of the present utility model.
Fig. 3 is the main TV structure figure of the utility model.
Fig. 4 is the utility model side-looking constructional drawing.
In figure, 1-connects ears, 2-guide roller frame, 3-track adjusting wheel, 4-bearing pin, 5-spring cotter, 6-nut, 7-bullet pad, 8-self-lubricating bearing.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
Electrified railway wind district contact system terminal adopts to prolong and casts anchor across branch, and catenary transition on adjacent bracket is hung, and transition is hung and adopted suspension pulley device, can vary with temperature free play, does not affect the deflection of another work supporting power rope bracket.When the utility model can solve that in wind district, AT power supply mode additive wire AF identical tension charging system is arranged, hitch point place hangs AF line.Headspan suspension place can replace former common suspension pulley to hang catenary.
The common suspension pulley of current use adopts the mode that is articulated and connected, and long-term wind pendulum serious wear between parts, through field observation bolt position-limitting pin wearing and tearing 60% after 2 years, the distortion of parts body through-holes seriously.Common pulley is used for suspension when prolonging across catenary, there occurs pulley body and rotates to bracket upper end, wire eccentric wear wheel body, and position-limitting pin to come off etc. and happens occasionally.
The contact system guide type suspension pulley device that the utility model relates to, adopts two restriction assembly pulley, has suspension, accessible play and the function such as anti-wear.Structure includes and takes the shape of the letter U and the guide roller frame 2 that Open Side Down, and guide roller frame 2 is made up of the connecting panel that the frame plate that two panels is parallel to each other is vertical with the two with two panels frame plate top.
The connecting panel end face of guide roller frame 2 is upwards provided with pair of parallel connection ears 1, connect on ears 1 and offer corresponding through hole, ears are embedded in interference fit self-lubricating bearing, be articulated and connected swingable in horizontal path with attaching parts, can effectively alleviate the friction relatively rotating generation between parts, avoid earhole, yoke plate earhole, bolt pin etc. to be rubbed to come off, eliminate operation security hidden danger.
Be provided with the track adjusting wheel 3 of upper and lower two axial levels in guide roller frame 2, be installed on guide roller frame 2 by bearing pin 4, the end that bearing pin 4 is positioned at outside guide roller frame 2 is tightened up by spring cotter 5, nut 6 and bullet pad 7.The outer interference fit that embeds of the bearing pin 4 of track adjusting wheel 3 has self-lubricating bearing 8.In the middle part of track adjusting wheel 3 recessed time, form the dead slot through wire between upper and lower two track adjusting wheels 3, wire is between upper and lower track adjusting wheel 3, and upper and lower track adjusting wheel 3 is driving wheel, wire retractable and play.
Connect ears 1 employing and be not less than 40Cr alloy steel material; Guide roller frame 2 adopts the carbon structural steels being not less than Q235B; Track adjusting wheel 3 adopts nylon 6 or casting copper alloy material; Bearing pin 4 adopts and is not less than 40Cr alloy steel material.
Above-mentioned all interference fit, running in bearings metapore gap shrinks is to 0.5mm, and after assembling, each connects between parts and connects bearing pin flexible rotating, without catching phenomenon.
Single hinge-point place after embedding self-lubricating bearing, the vibration number of manufacturer's trials is not less than 3,000,000 times, times of fatigue 750,000 times.After test, device rotates flexibly, can normally work, and abrasion loss (connecting the non-maintaining bearing of self-lubricating that bearing pin and ears type yoke plate are inlayed) is not more than that 0.3mm(is micro-sees polishing scratch).
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model specification sheets to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.
Claims (3)
1. a contact system guide type suspension pulley device, is characterized in that:
Include and take the shape of the letter U and the guide roller frame that Open Side Down (2), guide roller frame (2) is made up of the connecting panel that the frame plate that two panels is parallel to each other is vertical with the two with two panels frame plate top;
The connecting panel end face of guide roller frame (2) is upwards provided with pair of parallel connection ears (1), connects on ears (1) and offers corresponding through hole, connects ears (1) and is embedded in interference fit self-lubricating bearing;
The track adjusting wheel (3) of upper and lower two axial levels is provided with in guide roller frame (2), be installed on guide roller frame (2) by bearing pin (4), bearing pin (4) is positioned at guide roller frame (2) end outward and is tightened up by spring cotter (5), nut (6) and bullet pad (7);
Recessed time of track adjusting wheel (3) middle part, forms the dead slot through wire between upper and lower two track adjusting wheels (3).
2. a kind of contact system guide type suspension pulley device according to claim 1, is characterized in that:
The bearing pin (4) of track adjusting wheel (3) embeds interference fit outward self-lubricating bearing (8).
3. contact system guide type suspension pulley device according to claim 2, is characterized in that:
Track adjusting wheel (3) adopts nylon 6 or casting copper alloy material;
Bearing pin (4) adopts and is not less than 40Cr alloy steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632957.8U CN204895175U (en) | 2015-08-21 | 2015-08-21 | Contact net direction formula suspension pulley device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632957.8U CN204895175U (en) | 2015-08-21 | 2015-08-21 | Contact net direction formula suspension pulley device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204895175U true CN204895175U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520632957.8U Active CN204895175U (en) | 2015-08-21 | 2015-08-21 | Contact net direction formula suspension pulley device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204895175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059138A (en) * | 2015-08-21 | 2015-11-18 | 中铁第一勘察设计院集团有限公司 | Contact catenary guide type suspension pulley device |
-
2015
- 2015-08-21 CN CN201520632957.8U patent/CN204895175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059138A (en) * | 2015-08-21 | 2015-11-18 | 中铁第一勘察设计院集团有限公司 | Contact catenary guide type suspension pulley device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |