CN202623969U - Tension compensator - Google Patents
Tension compensator Download PDFInfo
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- CN202623969U CN202623969U CN 201220130378 CN201220130378U CN202623969U CN 202623969 U CN202623969 U CN 202623969U CN 201220130378 CN201220130378 CN 201220130378 CN 201220130378 U CN201220130378 U CN 201220130378U CN 202623969 U CN202623969 U CN 202623969U
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Abstract
The utility model relates to a tension compensator capable of preventing cylindrical components from rotating along with the rotation of an overhead wire. The tension compensator is provided with the cylindrical components, elastic components, an end plate, a wire connecting part and a wire connecting part sidewise rotation stop unit, wherein the cylindrical component with different radiuses are arranged coaxially in a nesting manner and can move relatively in the axis direction respectively; the elastic components are coaxial; each elastic component is clamped between two corresponding cylindrical components which are adjacent in the radial direction; the end plate is arranged at the end parts on the second sides of the cylindrical components and used for sealing the end parts on the second sides of the cylindrical components; the wire connecting part is arranged on the first sides of the cylindrical components and used for connecting the overhead wire; the wire connecting part sidewise rotation stop unit is arranged between the wire connecting part and the end part on the first side of the innermost cylindrical component and used for preventing the wire connecting part from rotating relative to the cylindrical components; the wire connecting part sidewise rotation stop unit comprises a first component and a second component; the first component is provided with a through hole with a non-circular cross section; the through hole is coaxial to the cylindrical components; the second component is provided with a non-circular cross section part which is consistent with the through hole in shape; and the non-circular cross section part is in embedded connection with the through hole.
Description
Technical field
The utility model relates to the tension compensator that can better the tension variation of railway power supply fare automatically be adjusted into the tension force of regulation, relates in particular to the tension compensator that prevents that cartridge from rotating along with the rotation of stringing.
Background technology
The air wire that railway is used, particularly contact line (stringing, auxiliary stringing etc.) can stretch, creep because of the variation of meteorologies such as temperature, wind, snow, thereby cause the tension force of stringing to change; When the tension variation of stringing is big; Can make a very bad impression to current collection, and when electric car was run at high speed, pantograph acutely shook; Thereby have the collision of pantograph and strain clamp, or pantograph off-line and be difficult to keep the danger of safety traffic.
In order to prevent the problems referred to above, need to use tension compensator that the tension variation of stringing is automatically adjusted within the specific limits, so that stringing tension force keeps constant.Usually, tension compensator has: bar, inner core, urceolus and shell, and their coaxial settings, and make bar, inner core, urceolus respectively being contained in shell along the mode that axis direction relatively moves according to order from inside to outside; A plurality of elastomeric elements; They are installed between the inner and outer circumferential surfaces of shell and urceolus, urceolus and inner core and inner core and bar coaxially; To the direction application of force that makes their retraction shells, the two ends of each elastomeric element are ended by inward flange portion and export-oriented flange part card respectively to urceolus, inner core and bar; End plate, the opposing party's side that it is arranged on above-mentioned shell is used for the end of the opposing party's side of above-mentioned shell is sealed; The line connecting part, side's side that it is arranged on above-mentioned bar is used to connect stringing.
Yet; Because above-mentioned in the past tension compensator is the structure that merely each cartridge and coil spring is made up; Two spiral ends produce relative circumferential displacement when coil spring is flexible; Thereby can between outermost cylindrical shell and the most inboard cylindrical shell, produce and reverse, and, can continue to exist trend to a direction rotation because stringing is a twisted wire; When the inner cylinder portion of tension compensator is rotated along with the rotation of stringing,, the position of scaleplate influences the identity of scaleplate thereby being changed.In addition, if inner core rotates along with the rotation of stringing, under serious situation, can destroy the structure of twisted wire and cause danger such as broken string.
The utility model content
The utility model is to make in view of above situation; Its purpose is to provide a kind of tension compensator that can prevent that inner core from rotating; Through line connecting part side spline unit is set; Therefore thereby air wire is linked parts with respect to the cartridge spline, can prevent that air wire from linking parts because of the reversing or situation that external force is rotated of air wire side, thereby can prevent that inner cylinder portion from rotating.
In addition, lead to spline unit through being provided with to insert, thereby prevent that inner core from rotating along with the rotation of stringing in inner core.
In order to solve above-mentioned problem, first technical scheme of the utility model provides a kind of tension compensator, and this tension compensator has: a plurality of cartridges, and they are provided with so that different radiuses is coaxial nestedly, and can relatively move along axis direction respectively; A plurality of elastomeric elements, they clamp between two above-mentioned cartridges of adjacent setting diametrically coaxially; End plate, the end that it is arranged on the opposing party's side of above-mentioned cartridge is used for the end of the opposing party's side of above-mentioned cartridge is sealed; The line connecting part; It is arranged on side's side of above-mentioned cartridge; Be used to connect stringing, this tension compensator is characterised in that also have line connecting part side spline unit; This line connecting part side spline unit is arranged between the end of above-mentioned line connecting part and above-mentioned side's side of inboard cartridge; Be used to prevent above-mentioned line connecting part with respect to the relatively rotating of above-mentioned cartridge, above-mentioned line connecting part side spline unit comprises: first parts, and it is non-circular through hole that itself and above-mentioned cartridge are provided with the cross section coaxially; Second parts, it is provided with the non-circular cross-section consistent with the shape of above-mentioned through hole, and this non-circular cross-section and above-mentioned through hole are chimeric.
Second technical scheme of the utility model is on the basis of first technical scheme; It is characterized in that; Also has end plate side spline unit; This end plate side spline unit is with the coaxial setting of above-mentioned cartridge and be fixed in above-mentioned end plate, is used to prevent the rotation of the most inboard cartridge, and above-mentioned end plate side spline unit is the bar-like member with non-circular cross section; Via the end face central authorities and the shape bullport consistent of the opposing party's side that is arranged on the most inboard cartridge, insert and lead in the most inboard cartridge with non-circular cross section.
The 3rd technical scheme of the utility model is on the basis of first or second technical scheme, it is characterized in that, the cross-section of the through hole of above-mentioned first parts and above-mentioned second parts is equilateral polygon.
The 4th technical scheme of the utility model is on the basis of first technical scheme, it is characterized in that, above-mentioned elastomeric element is a coil spring.
Use the tension compensator of the utility model; The inner core that can prevent tension compensator rotates along with the rotation of stringing; Thereby can better the tension variation of railway power supply fare automatically be adjusted into the tension force of regulation, thereby and the position of scaleplate do not change and be convenient to discern the scale of scaleplate.
Description of drawings
Fig. 1 is the constructional drawing of tension compensator of an embodiment of the utility model.
Fig. 2 is the scheme drawing of annexation of representing line connecting part and the bar of tension compensator in the past.
Fig. 3 is the cutaway view of connecting pin axial region of the line connecting part of tension compensator in the past.
Fig. 4 is the cutaway view of connecting pin axial region of line connecting part of the tension compensator of the utility model.
Fig. 5 is the decomposing schematic representation of the line connecting part side spline unit of the utility model.
Description of reference numerals:
1... shell; 2... urceolus; 3... inner core; 4... bar; 5... coil spring; 6... end plate; 7... pillar side connecting part; 8... line connecting part; 9... perforate support; 2a, 3a, the export-oriented flange part of 4a...; 1b, 2b, 3b... inward flange portion; 10a... through hole; 20... long slab; 21... connecting pin; 21a... axial region; 21b... cross-section; 21c... anti-delinking part.
The specific embodiment
Below describe based on the embodiment of accompanying drawing the utility model.
Fig. 1 is the constructional drawing of tension compensator of an embodiment of the utility model; Fig. 2 is the scheme drawing of annexation of representing line connecting part and the bar of tension compensator in the past; Fig. 3 is the cutaway view of connecting pin axial region of the line connecting part of tension compensator in the past; Fig. 4 is the cutaway view of connecting pin axial region of line connecting part of the tension compensator of the utility model, and Fig. 5 is the decomposing schematic representation of the line connecting part side spline unit of the utility model.
As shown in Figure 1, the urceolus 2 of tension compensator, inner core 3 and bar 4 are accommodated in the shell 1 when assembling, and can be outstanding to the right side of figure.Shell 1 is fixed in pillar (omit diagram) via the pillar side connecting part 7 that is installed in its rear end, and via the rope that combines with the perforate support 9 of the upper surface that is installed in shell 1 by pillar supporting.And the end of stringing combines with the line connecting part 8 of the jag that is installed on bar 4, spurs contact line via electric wire.
The assembled state of having represented tension compensator among Fig. 1; The tension compensator of present embodiment; Be with bar 4, inner core 3, urceolus 2 and shell 1 coaxial setting; And make bar 4, inner core 2 and urceolus 1 respectively can being contained in along the mode that axis direction moves in the shell 1 cylindraceous according to from inside to outside order, and begin successively coil spring 5 to be installed between the inner and outer circumferential surfaces of bar 4, inner core 3, urceolus 2 and shell 1 coaxially from the inboard.
Coil spring 5 respectively to urceolus 2, inner core 3 and bar 4 to the direction application of force that makes their retraction shells 1, the two ends of coil spring 5 are ended by export-oriented flange 2a, 3a, 4a and inward flange 1b, 2b, 3b card respectively.
In addition; Because stringing is a twisted wire; Always have the tendency of rotating to direction, for anti-principal vertical line connecting part spare with respect to the relatively rotating of cartridge, and wired connecting part side spline unit is set; This line connecting part side spline unit is provided with between the end of side's side of online connecting part 8 and bar 4, comprises as the rod end plate 10 of first parts with as the connecting pin 21 of second parts.Be fixed with the line connecting part 8 of U word shape in the leading section utilization welding of the axial region 21a of this connecting pin 21.Axial region 21a be provided with the cross-section 21b of rectangular cross sectional shape coaxially with line connecting part 8 opposite sides, be provided with anti-delinking part 21c in the side opposite of this cross-section 21b with axial region 21a.
Center at rod end plate 10 is formed with the through hole 10a consistent with the shape of above-mentioned cross-section 21b along axis direction with connecting.The axial region 21a of above-mentioned connecting pin 21 can insert through hole 10a, and diameter forms under the situation that is positioned at through hole 10a and can rotate.
Line connecting part 8 is linked via connecting pin 21 and rod end plate 10; After axial region 21a is inserted into through hole 10a; Make cross-section 21b and through hole 10a coupling and insert, the leading section of base end part and the axial region 10a of an opposite side with discharging end of line connecting part 8 is welded, both are become one.
Through line connecting part side spline unit being set, anti-principal vertical line connecting part relatively rotating with respect to cartridge.
In addition, end plate 6 is arranged on the end of the opposing party's side of bar 4, inner core 3, urceolus 2 and shell, is used for the end of the opposing party's side of the cartridge of tension compensator is sealed.The central portion of the end face of an opposite side at end plate 6 with being provided with pillar side connecting part 7 one sides; Through welding fixing and coaxial and being provided with long slab 20 highlightedly; The cross sectional shape of this long slab 20 forms consistent with bullport 23; When assembling, make long slab 20 shown in the arrow of Fig. 3, be inserted into above-mentioned bullport 23.In addition, the long slab under the assembled state 20 can move back and forth with respect to bullport 23 along axis (insertion) direction.
Thus, even wind, snow or the external force effect of freezing etc. because long slab 20 engages with bullport 23, can prevent that thus inner core from being bar 4 rotations.Equally, though electric car through the time or produce vibration during high wind, also can prevent consequent reversing.In addition, the length setting of long slab 20 gets final product for not breaking away from from bullport.
Owing to insert state group long slab 20 is housed in the bar 4; Thereby can stably operate and can not rotate; Therefore scaleplate always is positioned at the below of tension compensator, thereby can always confirm scaleplate in certain position, can easily safeguard and check operation.
According to the utility model; Can prevent that air wire from linking the rotation of parts with respect to cartridge; And then the inner core that prevents tension compensator rotates along with the rotation of stringing; Thereby can better the tension variation of railway power supply fare automatically be adjusted into the tension force of regulation, thereby and keep the affirmation position stability of scaleplate to be convenient to discern the scale of scaleplate.
More than the embodiment of explanation is not limited thereto nothing but an example certainly.For example; Though be that shape with the cross-section 21b of through hole and connecting pin forms rectangle in this embodiment; But being not limited to the rectangle of illustrated example, also can be equilateral polygon such as triangle or hexagon, or non-circular; As long as can bring into play the effect that prevents that inner cylinder portion from rotating, then its shape not done particular determination.
More than; Though the tension compensator to the utility model is illustrated; But the utility model is not limited to the embodiment of above-mentioned explanation; In the scope of the purport that does not break away from the utility model, can carry out various distortion and combination, and these distortion and combination are also included within the protection domain of the utility model.
Claims (4)
1. tension compensator has:
A plurality of cartridges, they are provided with so that different radiuses is coaxial nestedly, and can relatively move along axis direction respectively;
A plurality of elastomeric elements, they clamp between two above-mentioned cartridges of adjacent setting diametrically coaxially;
End plate, the end that it is arranged on the opposing party's side of above-mentioned cartridge is used for the end of the opposing party's side of above-mentioned cartridge is sealed;
The line connecting part, side's side that it is arranged on above-mentioned cartridge is used to connect stringing,
This tension compensator is characterised in that,
Also have line connecting part side spline unit, this line connecting part side spline unit is arranged between the end of above-mentioned line connecting part and above-mentioned side's side of inboard cartridge, is used to prevent above-mentioned line connecting part with respect to the relatively rotating of above-mentioned cartridge,
Above-mentioned line connecting part side spline unit comprises: first parts, and it is non-circular through hole that itself and above-mentioned cartridge are provided with the cross section coaxially; Second parts, it is provided with the non-circular cross-section consistent with the shape of above-mentioned through hole, and this non-circular cross-section and above-mentioned through hole are chimeric.
2. tension compensator according to claim 1 is characterized in that,
Also have end plate side spline unit, this end plate side spline unit is with the coaxial setting of above-mentioned cartridge and be fixed in above-mentioned end plate, is used to prevent the rotation of the most inboard cartridge,
Above-mentioned end plate side spline unit is the bar-like member with non-circular cross section, via the end face central authorities and the shape bullport consistent with non-circular cross section of the opposing party's side that is arranged on the most inboard cartridge, inserts and leads in the most inboard cartridge.
3. tension compensator according to claim 1 and 2 is characterized in that,
The cross-section of the through hole of above-mentioned first parts and above-mentioned second parts is equilateral polygon.
4. tension compensator according to claim 1 is characterized in that,
Above-mentioned elastomeric element is a coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130378 CN202623969U (en) | 2012-03-30 | 2012-03-30 | Tension compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130378 CN202623969U (en) | 2012-03-30 | 2012-03-30 | Tension compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202623969U true CN202623969U (en) | 2012-12-26 |
Family
ID=47377198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220130378 Expired - Lifetime CN202623969U (en) | 2012-03-30 | 2012-03-30 | Tension compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202623969U (en) |
-
2012
- 2012-03-30 CN CN 201220130378 patent/CN202623969U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |