CN204552593U - A kind of fast rotating car ladder foot of ladder stretching device - Google Patents
A kind of fast rotating car ladder foot of ladder stretching device Download PDFInfo
- Publication number
- CN204552593U CN204552593U CN201520047575.9U CN201520047575U CN204552593U CN 204552593 U CN204552593 U CN 204552593U CN 201520047575 U CN201520047575 U CN 201520047575U CN 204552593 U CN204552593 U CN 204552593U
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- ladder
- foot
- retractable support
- support
- socket
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Abstract
The utility model relates to a kind of fast rotating car ladder foot of ladder stretching device, compared with prior art solves the defect that car ladder there will be skew back in the process of moving.The foot of ladder of detachable ladder of the present utility model is fixedly mounted on above retractable support, and support is fixedly mounted in the transverse beam on tower wagon chassis, support is installed with lower retractable support; The bottom of upper retractable support is right-handed thread structure, the top of lower retractable support is left hand thread structure, the middle part of ut socket is run through and is provided with action bars, be positioned in ut socket above action bars is right-handed thread structure, be positioned in ut socket below action bars is left hand thread structure, the lower thread of upper retractable support is arranged on ut socket top, and the top screw thread of lower retractable support is arranged on ut socket bottom.The adjustment of the utility model by regulating the length of foot of ladder to realize the car ladder center of gravity at bend place, safety in utilization, reliability are higher.
Description
Technical field
The utility model relates to repairing car for overhead contact line equipment ladder technical field, specifically a kind of fast rotating car ladder foot of ladder stretching device.
Background technology
Along with developing rapidly of China Express Railway, the laying of electric railway gets more and more, and the maintenance of contact net important in electric railway also faces huge challenge, its requirement has higher operating efficiency and safety factor in daily contact net maintenance process., in use there is following problem in existing electrification railway contact net upkeep operation car ladder: 1, car ladder structure is mainly integrated connection, and ladder is non-dismountable; 2, ladder material is steel part, and its weight is large, not easily carries; 3, car ladder easily occurs in motion process toppling in left and right.As shown in Figure 6, because ladder is higher, at the bend place of railway, the side of rail is higher than opposite side, and the skew back of ladder is very serious, and in actual conditions, the difference in height of two rails is the highest reaches 150mm or higher sometimes.Now, the center of gravity of working platform will go out outside the track of side by skew back, and maintainer works extremely dangerous on working platform.How can overcome the difference in height of car ladder on rail, make center of gravity get back to the technical problem having become in the middle of rail and be badly in need of solving.
Utility model content
The purpose of this utility model there will be the defect of skew back in the process of moving to solve car ladder in prior art, provides a kind of fast rotating car ladder foot of ladder stretching device to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of fast rotating car ladder foot of ladder stretching device, comprise working platform, detachable ladder and tower wagon chassis, described working platform is arranged on the top of detachable ladder, detachable ladder is arranged on tower wagon chassis, tower wagon chassis comprises two longitudinal beams and two transverse beams, and two transverse beams are laterally arranged on two longitudinal beams, also comprise foot of ladder stretching device, the quantity of foot of ladder stretching device is 4, and the foot of ladder of described detachable ladder is all arranged on tower wagon chassis by foot of ladder stretching device;
Described foot of ladder stretching device comprises retractable support, ut socket and lower retractable support, and the foot of ladder of detachable ladder is fixedly mounted on above retractable support, and support is fixedly mounted in the transverse beam on tower wagon chassis, support is installed with lower retractable support;
The bottom of upper retractable support is right-handed thread structure, the top of lower retractable support is left hand thread structure, the middle part of ut socket is run through and is provided with action bars, be positioned in ut socket above action bars is right-handed thread structure, be positioned in ut socket below action bars is left hand thread structure, the lower thread of upper retractable support is arranged on ut socket top, and the top screw thread of lower retractable support is arranged on ut socket bottom.
Also comprise retaining thread bar and support threaded rod, lower retractable support and support run through fixing by retaining thread bar, and support and transverse beam run through fixing by support threaded rod.
Described detachable ladder comprises sub-ladder, and the quantity of sub-ladder is 2, is installed connect between two sub-ladders by threaded fasteners.
Described detachable ladder and the material on tower wagon chassis are industrial aluminum profile.
beneficial effect
The fast rotating car ladder foot of ladder stretching device of one of the present utility model, the adjustment compared with prior art by regulating the length of foot of ladder to realize the car ladder center of gravity at bend place, safety in utilization, reliability are higher.By the design of foot of ladder stretching device, make car ladder still can be in the center of two tracks in rail turning working platform center of gravity, ensure that the safety of maintainer.By the design of ut socket right-handed thread and left hand thread, retractable support and lower retractable support are synchronized with the movement, not only increase and regulate the speed, decrease the rotation number of turns, and adjustment process is more stable, have the advantages that structure is simple, with low cost, practical value is high.
Accompanying drawing explanation
Fig. 1 is the structure left view of car ladder;
Fig. 2 is the structure elevation of car ladder;
Fig. 3 be the utility model be in extended state structure left view;
Fig. 4 be the utility model be in extended state structure elevation;
Fig. 5 be the utility model be in contraction state structure left view;
Fig. 6 be the utility model be in contraction state structure elevation;
Fig. 7 is the structure upward view on tower wagon chassis in car ladder;
Fig. 8 is that in prior art, ladder travels the state diagram to rail bend place;
Fig. 9 is that car ladder travels to rail bend place using state figure of the present utility model;
Wherein, retractable support, 85-retaining thread bar, 86-support, 87-support threaded rod under 1-car ladder chassis, 11-longitudinal beam, the short longitudinal beam of 12-, 13-transverse beam, the detachable ladder of 2-, 21-ladder, 22-threaded fasteners, 23-oblique drawbar, 3-working platform, 4-rail, 6-road wheel, 8-foot of ladder stretching device, the upper retractable support of 81-, 82-ut socket, 83-action bars, 84-.
Detailed description of the invention
For making to have a better understanding and awareness architectural feature of the present utility model and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
As depicted in figs. 1 and 2, a kind of car ladder for electrification railway contact net maintenance described in the utility model, comprise working platform 3, detachable ladder 2 and tower wagon chassis 1, working platform 3 is arranged on the top of detachable ladder 2, four columns of working platform 3 are provided with four through holes from high to low, be connected with ladder 2 by through hole, the height of working platform 3 can be regulated by four through holes.Detachable ladder 2 is arranged on tower wagon chassis 1, and working platform 3, detachable ladder 2 and tower wagon chassis 1 three form car ladder jointly.Wherein, as shown in Figure 5, tower wagon chassis 1 is separately installed with four road wheels 6, installation can be combined by two longitudinal beams 11 and two transverse beams 13 in tower wagon chassis 1, but in order to increase its stability, preferably can be combined to install by a short longitudinal beam 12, two longitudinal beams 11 and three transverse beams 13 and formed, three transverse beams 13 are laterally arranged on two longitudinal beams 11, form " saying " font.Short longitudinal beam 12 to be vertically mounted in two adjacent transverse beams 13 and between two longitudinal beams 11, and short longitudinal beam 12 is for installation car ladder Power Component, and it can be arranged in any two adjacent transverse beams 13, for Power Component provides fixed support.In order to reduce the weight of car ladder own, the material on detachable ladder 2 and tower wagon chassis 1 all can adopt industrial aluminum profile.
Because ladder is higher, when driving to rail bend place, ladder skew back can be very serious.Now the center of gravity of working platform will go out outside the track of side by skew back, very dangerous.Can grow tall by regulating foot of ladder at this, center of gravity being got back in the middle of two rails, improves its safety in utilization.As shown in Figure 1, Figure 2 and Figure 7, four pin of detachable ladder 2 are arranged on tower wagon chassis 1 by foot of ladder stretching device 8, and the quantity of foot of ladder stretching device 8 is 4.As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, foot of ladder stretching device 8 comprises retractable support 81, ut socket 82 and lower retractable support 84.Upper retractable support 81 is for supporting detachable ladder 2, and the foot of ladder of detachable ladder 2 is fixedly mounted on above retractable support 81.Support 86 is fixedly mounted in the transverse beam 13 on tower wagon chassis 1, can run through fixing between support 86 and transverse beam 13 by support threaded rod 87.Support 86 top is installed with lower retractable support 84, can run through fixing between lower retractable support 84 and support 86 by retaining thread bar 85.
The bottom of upper retractable support 81 is right-handed thread structure, and the top of lower retractable support 84 is left hand thread structure.The middle part of ut socket 82 is run through and is provided with action bars 83, and being positioned in ut socket 82 above action bars 83 is right-handed thread structure, for coordinating the installation of upper retractable support 81; Being positioned in ut socket 82 below action bars 83 is left hand thread structure, for coordinating the installation of lower retractable support 84.The lower thread of upper retractable support 81 is arranged on ut socket 82 top, and the bottom of namely going up retractable support 81 is arranged on ut socket 82 top by right-handed thread cooperation; The top screw thread of lower retractable support 84 is arranged on ut socket 82 bottom, namely descends the top of retractable support 84 to be arranged on ut socket 82 bottom by left hand thread engagement.Like this, by the rotation of ut socket 82, the synchronous different of retractable support 81 and lower retractable support 84 just can be realized to motion.
As depicted in figs. 1 and 2, conveniently transport, detachable ladder 2 can be made up of two sub-ladders 21, and every sub-ladder 21 is reinforced by four oblique drawbars.Four pin between two sub-ladders 21 are installed by threaded fasteners 22 and are connected, and when transporting, are separated by two sub-ladders 21 from threaded fasteners 22.
When reality uses, as shown in Figure 9, when car ladder advance to run into rail bend place time, when rail both sides, bend place height is inconsistent, carry out the adjustment of foot of ladder stretching device 8 as required.Promote action bars 83 to rotate, by the rotation rotarily driving ut socket 82 of action bars 83.Because ut socket 82 top is right-handed thread structure, the bottom of the upper retractable support 81 installed is coordinated to be right-handed thread structure with ut socket 82 top; Ut socket 82 bottom is left hand thread structure, coordinate with ut socket 82 bottom that to pacify the top holding retractable support 84 be left hand thread structure, therefore when rotating nut sleeve 82, upper retractable support 81 and lower retractable support 84, on ut socket 82, carry out stretching (upper retractable support 81 is separated with lower retractable support 84) simultaneously or shrink (upper retractable support 81 and lower retractable support 84 close) motion.Thus realize the stretching or the contraction that adjust foot of ladder stretching device 8 as required, realize the Height Adjustment of foot of ladder, make working platform 3 keep stable.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and manual; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (4)
1. a fast rotating car ladder foot of ladder stretching device, comprise working platform (3), detachable ladder (2) and tower wagon chassis (1), described working platform (3) is arranged on the top of detachable ladder (2), detachable ladder (2) is arranged on tower wagon chassis (1), tower wagon chassis (1) comprises two longitudinal beams (11) and two transverse beams (13), two transverse beams (13) are laterally arranged on two longitudinal beams (11), it is characterized in that: also comprise foot of ladder stretching device (8), the quantity of foot of ladder stretching device (8) is 4, the foot of ladder of described detachable ladder (2) is all arranged on tower wagon chassis (1) by foot of ladder stretching device (8),
Described foot of ladder stretching device (8) comprises retractable support (81), ut socket (82) and lower retractable support (84), the foot of ladder of detachable ladder (2) is fixedly mounted on retractable support (81) top, support (86) is fixedly mounted in the transverse beam (13) of tower wagon chassis (1), support (86) is installed with lower retractable support (84);
The bottom of upper retractable support (81) is right-handed thread structure, the top of lower retractable support (84) is left hand thread structure, the middle part of ut socket (82) is run through and is provided with action bars (83), action bars (83) top is positioned at for right-handed thread structure in ut socket (82), action bars (83) below is positioned at for left hand thread structure in ut socket (82), the lower thread of upper retractable support (81) is arranged on ut socket (82) top, and the top screw thread of lower retractable support (84) is arranged on ut socket (82) bottom.
2. the fast rotating car ladder foot of ladder stretching device of one according to claim 1, it is characterized in that: also comprise retaining thread bar (85) and support threaded rod (87), lower retractable support (84) and support (86) run through fixing by retaining thread bar (85), and support (86) and transverse beam (13) run through fixing by support threaded rod (87).
3. the fast rotating car ladder foot of ladder stretching device of one according to claim 1, it is characterized in that: described detachable ladder (2) comprises sub-ladder (21), the quantity of sub-ladder (21) is 2, is installed connect between two sub-ladders (21) by threaded fasteners (22).
4. the fast rotating car ladder foot of ladder stretching device of one according to claim 1, is characterized in that: described detachable ladder (2) and the material of tower wagon chassis (1) are industrial aluminum profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047575.9U CN204552593U (en) | 2015-01-23 | 2015-01-23 | A kind of fast rotating car ladder foot of ladder stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047575.9U CN204552593U (en) | 2015-01-23 | 2015-01-23 | A kind of fast rotating car ladder foot of ladder stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204552593U true CN204552593U (en) | 2015-08-12 |
Family
ID=53827720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520047575.9U Expired - Fee Related CN204552593U (en) | 2015-01-23 | 2015-01-23 | A kind of fast rotating car ladder foot of ladder stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204552593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401453A (en) * | 2016-11-24 | 2017-02-15 | 东台市苏中电工机械有限公司 | Overhaul vehicle ladder for railway overhead line system |
-
2015
- 2015-01-23 CN CN201520047575.9U patent/CN204552593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401453A (en) * | 2016-11-24 | 2017-02-15 | 东台市苏中电工机械有限公司 | Overhaul vehicle ladder for railway overhead line system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20180123 |