CN212844110U - Railway contact net unwrapping wire tension detection device - Google Patents
Railway contact net unwrapping wire tension detection device Download PDFInfo
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- CN212844110U CN212844110U CN202021957446.0U CN202021957446U CN212844110U CN 212844110 U CN212844110 U CN 212844110U CN 202021957446 U CN202021957446 U CN 202021957446U CN 212844110 U CN212844110 U CN 212844110U
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Abstract
The invention discloses a railway contact net pay-off tension detection device, which relates to the technical field of railway contact net stringing detection.A device is arranged at a certain height position at the tail part of a pay-off operation vehicle, a pulley support is in rolling contact with a paid-off contact net lead, the tension of the paid-off lead can be reflected through a tension value on a tension meter, the retest of the paid-off contact net lead is realized, and once the tension in the pay-off process has a problem, the retest can be corrected in time; along the railway, the heights of contact net wires at different positions may be different, and the height of the hydraulic lifting platform can be properly adjusted according to different height requirements, so that the relative position between the pulley and the arranged standard contact net wires is kept unchanged; because the anti-rotation and elastic supporting mechanism is designed, the pulley cannot deflect when in rolling contact with the contact net wire, and the gravity of the pulley and the supporting shaft is not required to be completely applied to the contact net wire, so that the contact net wire is prevented from being damaged.
Description
Technical Field
The invention relates to the technical field of railway contact net stringing detection, in particular to a railway contact net pay-off tension detection device.
Background
The overhead contact system for high-speed railway is a special power transmission line for supplying power to electric locomotive, and is composed of contact suspension, supporting device, positioning device, supporting column and foundation. The contact suspension comprises a contact net lead wire, a dropper, a carrier cable and a fastening and connecting assembly. The contact net pay-off operation vehicle is widely applied to operations such as erection, daily maintenance and accident emergency rescue of contact net wires on an electrified railway, and in the pay-off process, the tension of the wires needs to be detected so as to ensure that the tension of the erected wires meets the requirements. At present, in the paying-off process, the tension of a lead is detected to ensure constant-force paying-off, but in the paying-off process, the paid-off lead is not detected again, once a tension detection system in the paying-off process breaks down, the tension detection precision is possibly reduced a lot, at the moment, the paying-off can be kept continuously, reworking can be caused, time and labor are consumed, and the wiring cost is increased.
Disclosure of Invention
The invention aims to provide a railway contact net pay-off tension detection device which can alleviate the problems.
In order to alleviate the above problems, the technical scheme adopted by the invention is as follows:
the utility model provides a railway contact net unwrapping wire tension detection device, includes:
the hydraulic lifting platform is used for being installed at the tail part of the pay-off operation vehicle;
the bracket is fixed on the hydraulic lifting platform;
the linear guide cylinder is vertically fixed on the bracket;
the anti-rotation and elastic supporting mechanism is arranged on the bracket, is positioned right below the linear guide cylinder, and is used for preventing the supporting shaft from rotating and providing elastic supporting force for the supporting shaft;
the support shaft is sleeved in the linear guide cylinder and can move up and down along the linear guide cylinder;
the pulley is used for rolling and contacting with a contact net lead, is arranged at the upper end of the supporting shaft, is horizontally arranged with a wheel shaft, and is vertical to the advancing direction of the pay-off operation vehicle;
and the tension meter is vertically fixed on the hydraulic lifting platform and is positioned right below the supporting shaft, and the tension detection part at the upper end of the tension meter is connected with the lower end of the supporting shaft.
In a preferred embodiment of the present invention, the anti-rotation and elastic support mechanism includes a vertically arranged support cylinder, an annular protrusion formed on the support shaft, and a spring vertically arranged in the support cylinder;
the supporting shaft penetrates through the upper and lower cylinder ports of the supporting cylinder, the annular bulge is positioned in the supporting cylinder, the outer diameter of the annular bulge is smaller than the inner diameter of the supporting cylinder and larger than the diameter of the cylinder port, the outer diameter of the spring is larger than the diameter of the cylinder port and smaller than the inner diameter of the supporting cylinder, and the inner diameter of the spring is larger than the diameter of the supporting shaft;
the spring is sleeved on the supporting shaft, the upper end of the spring is supported on the bottom surface of the annular bulge, and the lower end of the spring is supported on the bottom of the supporting cylinder;
the anti-rotation clamping device is characterized in that an anti-rotation clamping block is fixedly connected to the outer annular surface of the annular protrusion, an anti-rotation clamping groove is formed in the inner wall of the supporting cylinder and is a strip-shaped groove arranged in the vertical direction, the anti-rotation clamping block is clamped in the anti-rotation clamping groove and can move up and down, and the supporting cylinder is fixed with the support.
The utility model discloses an in a preferred embodiment, hydraulic elevating platform is provided with scale I perpendicularly, the back shaft is provided with vertical direction to the pointer of scale I.
The utility model discloses an in a preferred embodiment, hydraulic lift includes the base, vertical install in a plurality of pneumatic cylinders of base, connect in the platform of pneumatic cylinder piston end, the support mounting is in this platform.
The utility model discloses an in a preferred embodiment, hydraulic elevating platform's base is provided with scale II perpendicularly, the top of scale II is higher than hydraulic elevating platform's platform.
The utility model discloses an in a preferred embodiment, the lower extreme of back shaft is provided with the pull ring, the detection portion of tensiometer for hang in the couple structure of pull ring.
Compared with the prior art, the beneficial effects of the utility model are that: the device is arranged at a certain height position at the tail of the pay-off operation vehicle, the pulley support is in rolling contact with the paid-off contact net lead, the tension of the paid-off lead can be reflected through the tension value on the tension meter, the redetection of the paid-off contact net lead is realized, and once the tension in the pay-off process is in a problem, the correction can be carried out in time; along the railway, the heights of contact net wires at different positions may be different, and the height of the hydraulic lifting platform can be properly adjusted according to different height requirements, so that the relative position between the pulley and the arranged standard contact net wires is kept unchanged; because the anti-rotation and elastic supporting mechanism is designed, the pulley cannot deflect when in rolling contact with the contact net wire, and the gravity of the pulley and the supporting shaft is not required to be completely applied to the contact net wire, so that the contact net wire is prevented from being damaged.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of an application structure of the device for detecting the pay-off tension of the railway contact system of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic side view of the assembly of the pulley and the support shaft of the present invention;
in the figure: 1-hydraulic lifting platform, 2-tension meter, 3-graduated scale I, 4-graduated scale II, 5-pointer, 6-contact net lead, 7-bracket, 8-linear guide cylinder, 9-pulley, 10-support shaft, 11-pull ring, 12-annular bulge, 13-support cylinder, 14-cylinder port, 15-spring, 16-anti-rotation clamping groove and 17-anti-rotation clamping block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific 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 in specific cases to those skilled in the art.
Please refer to fig. 1-3, the utility model relates to a railway contact net unwrapping wire tension detection device, include:
the hydraulic lifting platform 1 is used for being mounted at the tail part of the pay-off operation vehicle;
the bracket 7 is fixed on the hydraulic lifting platform 1;
the linear guide cylinder 8 is vertically fixed on the bracket 7;
the anti-rotation and elastic supporting mechanism is arranged on the bracket 7 and is positioned right below the linear guide cylinder 8, and is used for preventing the supporting shaft 10 from rotating and providing elastic supporting force for the supporting shaft 10;
the support shaft 10 is sleeved in the linear guide cylinder 8 and can move up and down along the linear guide cylinder 8;
the pulley 9 is used for rolling contact with the contact net lead 6, is arranged at the upper end of the supporting shaft 10, is horizontally arranged, and is vertical to the advancing direction of the pay-off operation vehicle;
and the tension meter 2 is vertically fixed on the hydraulic lifting platform 1 and is positioned right below the supporting shaft 10, and the tension detection part at the upper end of the tension meter is connected with the lower end of the supporting shaft 10.
The utility model discloses in, accessible bolt can be dismantled fixedly between support 7 and the hydraulic lifting platform 1, and support 7 can adopt a plurality of tubular product welding to form. The anti-rotation and elastic supporting mechanism and the linear guide cylinder 8 can be detachably fixed with the bracket 7.
The utility model discloses in, can regularly add lubricating oil between back shaft 10 and sharp guide cylinder 8 to make back shaft 10 when 8 linear motion of sharp guide cylinder, the resistance that receives is littleer.
The installation and the application method of the railway contact net pay-off tension detection device are as follows:
the position right above the tail of the paying-off operation vehicle is the contact net lead 6 with determined paid-off height, so that the device is arranged at the tail of the paying-off operation vehicle. An installation platform is built at the tail part of the pay-off operation vehicle, and the installation of the device on the pay-off operation vehicle is realized by fixing the base of the hydraulic lifting platform 1 and the installation platform through a plurality of bolts.
The specification indicates that the heights of contact networks at different sections along the railway are possibly different, for example, the height from the contact network lead 6 to the top surface of the steel rail is not more than 6500 mm; in intervals and intermediate stations, not less than 5700mm (old line reconstruction not less than 5330 mm); at marshalling stations, section stations and individual larger intermediate station yards, no less than 6200 mm; the line for transporting the double-layer containers is not less than 6330 mm. Therefore, the device can be matched with contact net wires 6 with different heights through the hydraulic lifting platform 1, and the height requirement of the mounting platform is that the fixed pulley 9 can be supported and contacted on the contact net wires 6 when the hydraulic lifting platform 1 is lifted to the highest position. The device is arranged in the middle of the tail of the pay-off operation vehicle, so that the pulley 9 and the contact net lead 6 are in the same vertical plane.
When the device is used, the pulley 9 is supported on the contact net lead 6, and if the height of the pulley 9 is not consistent with the position of the contact net lead 6, the height position of the pulley can be properly adjusted through the hydraulic lifting platform 1. Then, a tension value F of a contact net lead 6 where a pulley 9 is located is read on the tension meter 2 when the tension is normal0。
Then the paying-off operation vehicle starts to run and continues paying off, and if the tension values F and F displayed on the tension meter 2 are in the running process, the tension meter continues to display the tension values F and F0If the absolute value of the difference is too large, the tension of the released contact net lead 6 is abnormal, and the correction is needed.
In an optional embodiment of the present invention, the anti-rotation and elastic support mechanism includes a support cylinder 13 vertically disposed, an annular protrusion 12 formed on the support shaft 10, and a spring 15 vertically disposed in the support cylinder 13; the supporting shaft 10 penetrates through an upper barrel port 14 and a lower barrel port 14 of the supporting barrel 13, the annular bulge 12 is positioned in the supporting barrel 13, the outer diameter of the annular bulge is smaller than the inner diameter of the supporting barrel 13 and larger than the diameter of the barrel port 14, the outer diameter of the spring 15 is larger than the diameter of the barrel port 14 and smaller than the inner diameter of the supporting barrel 13, and the inner diameter of the spring 15 is larger than the diameter of the supporting shaft 10; the spring 15 is sleeved on the supporting shaft 10, the upper end of the spring is supported on the bottom surface of the annular bulge 12, and the lower end of the spring is supported on the bottom of the supporting cylinder 13; the outer annular surface of the annular protrusion 12 is fixedly connected with an anti-rotation clamping block 17, the inner wall of the supporting cylinder 13 is provided with an anti-rotation clamping groove 16, the anti-rotation clamping groove 16 is a strip-shaped groove arranged along the vertical direction, the anti-rotation clamping block 17 is clamped in the anti-rotation clamping groove 16 and can move up and down, and the supporting cylinder 13 is fixed with the support 7.
In the present embodiment, the specific specification of the spring 15 depends on the sum of the gravity of the pulley 9 and the support shaft 10, and the spring 15 is used to support the pulley 9 and the support shaft 10 to a certain extent, so that they only need to apply a small portion of the gravity to the catenary wire 6.
In this embodiment, the engagement between the anti-rotation locking block 17 and the anti-rotation locking groove 16 functions to prevent the support shaft 10 from rotating in the linear guide cylinder 8.
In an optional embodiment of the present invention, the hydraulic lifting platform 1 is vertically provided with the scale i 3, and the supporting shaft 10 is provided with the pointer 5 pointing to the scale i 3 vertically.
Staff on the unwrapping wire operation car, after walking to the rear of a vehicle, the accessible is watched pointer 5 and is in the instruction position on scale I3, and whether the tension of contact net wire 6 is normal according to experience preliminary judgement.
In an optional embodiment of the present invention, the hydraulic lifting platform 1 comprises a base, a plurality of hydraulic cylinders vertically installed on the base, and a platform connected to the piston end of the hydraulic cylinder, and the support 7 is installed on the platform.
In this embodiment, the base of hydraulic elevating platform 1 is provided with scale II 4 perpendicularly, and the top of scale II 4 is higher than the platform of hydraulic elevating platform 1.
Staff on the unwrapping wire operation car can judge hydraulic elevating platform 1's height according to II 4 graduated scales, then can the efficient according to the normal height of current section contact net wire 6, adjust hydraulic elevating platform 1's lifting height.
In an optional embodiment of the present invention, the lower end of the supporting shaft 10 is provided with a pull ring 11, and the detecting portion of the tension meter 2 is a hook structure hanging on the pull ring 11.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a railway contact net unwrapping wire tension detection device which characterized in that includes:
the hydraulic lifting platform is used for being installed at the tail part of the pay-off operation vehicle;
the bracket is fixed on the hydraulic lifting platform;
the linear guide cylinder is vertically fixed on the bracket;
the support shaft is sleeved in the linear guide cylinder and can move up and down along the linear guide cylinder;
the anti-rotation and elastic supporting mechanism is arranged on the bracket, is positioned right below the linear guide cylinder, and is used for preventing the supporting shaft from rotating and providing elastic supporting force for the supporting shaft;
the pulley is used for rolling and contacting with a contact net lead, is arranged at the upper end of the supporting shaft, is horizontally arranged with a wheel shaft, and is vertical to the advancing direction of the pay-off operation vehicle;
and the tension meter is vertically fixed on the hydraulic lifting platform and is positioned right below the supporting shaft, and the tension detection part at the upper end of the tension meter is connected with the lower end of the supporting shaft.
2. The device for detecting the pay-off tension of the railway contact net according to claim 1, wherein the anti-rotation and elastic supporting mechanism comprises a supporting cylinder which is vertically arranged, an annular bulge which is processed on the supporting shaft and a spring which is vertically arranged in the supporting cylinder;
the supporting shaft penetrates through the upper and lower cylinder ports of the supporting cylinder, the annular bulge is positioned in the supporting cylinder, the outer diameter of the annular bulge is smaller than the inner diameter of the supporting cylinder and larger than the diameter of the cylinder port, the outer diameter of the spring is larger than the diameter of the cylinder port and smaller than the inner diameter of the supporting cylinder, and the inner diameter of the spring is larger than the diameter of the supporting shaft;
the spring is sleeved on the supporting shaft, the upper end of the spring is supported on the bottom surface of the annular bulge, and the lower end of the spring is supported on the bottom of the supporting cylinder;
the anti-rotation clamping device is characterized in that an anti-rotation clamping block is fixedly connected to the outer annular surface of the annular protrusion, an anti-rotation clamping groove is formed in the inner wall of the supporting cylinder and is a strip-shaped groove arranged in the vertical direction, the anti-rotation clamping block is clamped in the anti-rotation clamping groove and can move up and down, and the supporting cylinder is fixed with the support.
3. The railway contact line pay-off tension detection device as claimed in claim 2, wherein the hydraulic lifting platform is vertically provided with a graduated scale I, and the support shaft is provided with a pointer which points to the graduated scale I vertically.
4. The device for detecting the pay-off tension of the railway contact line as claimed in claim 2, wherein the hydraulic lifting platform comprises a base, a plurality of hydraulic cylinders vertically mounted on the base, and a platform connected to the piston ends of the hydraulic cylinders, and the support is mounted on the platform.
5. The railway contact line pay-off tension detection device as claimed in claim 4, wherein a graduated scale II is vertically arranged on the base of the hydraulic lifting platform, and the top end of the graduated scale II is higher than the platform of the hydraulic lifting platform.
6. The railway contact line pay-off tension detection device as claimed in claim 1, wherein a pull ring is arranged at the lower end of the support shaft, and the detection part of the tension meter is of a hook structure hung on the pull ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021957446.0U CN212844110U (en) | 2020-09-09 | 2020-09-09 | Railway contact net unwrapping wire tension detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021957446.0U CN212844110U (en) | 2020-09-09 | 2020-09-09 | Railway contact net unwrapping wire tension detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212844110U true CN212844110U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021957446.0U Active CN212844110U (en) | 2020-09-09 | 2020-09-09 | Railway contact net unwrapping wire tension detection device |
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|---|---|
| CN (1) | CN212844110U (en) |
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- 2020-09-09 CN CN202021957446.0U patent/CN212844110U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230802 Address after: C315, Building F8, Shenyang International Software Park, No. 860-1, Shangshengou Village, Hunnan District, Shenyang City, Liaoning Province, 110000 Patentee after: Shenyang Jianshi Technology Co.,Ltd. Address before: Room 502, unit 12, building 2, 115 Kashi West Road, Xinshi District, Urumqi, Xinjiang 830000 Patentee before: Gao Jinshan |
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| TR01 | Transfer of patent right |