CN202703322U - Tension compensator - Google Patents
Tension compensator Download PDFInfo
- Publication number
- CN202703322U CN202703322U CN 201220130832 CN201220130832U CN202703322U CN 202703322 U CN202703322 U CN 202703322U CN 201220130832 CN201220130832 CN 201220130832 CN 201220130832 U CN201220130832 U CN 201220130832U CN 202703322 U CN202703322 U CN 202703322U
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- China
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- mentioned
- end plate
- barrel
- cartridge
- line connecting
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- Expired - Lifetime
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Abstract
The utility model provides a tension compensator which prevents barrel-shaped parts from rotating along with rotation of a stringing. The tension compensator comprises a plurality of the barrel-shaped parts, a plurality of elastic parts, end plates, line connecting parts and end plate side rotation blocking unit. The barrel-shaped parts are coaxially arranged in an embedded and sleeved mode according to different radius, and can respectively and relatively move along the axis direction. The elastic parts are coaxially clamped between two adjacent barrel-shaped parts which are arranged along the radial direction. Each end plate is arranged on the end portion on the other square side of each barrel-shaped part and used for closing the end portion of the other square side of each barrel-shaped part. Each line connecting part is arranged on one square side of each barrel-shaped part and used for connecting with the stringing. Each end plate side rotation blocking unit and the barrel-shaped parts are coaxially arranged, and each end plate side rotation blocking unit is fixed on the end plates and used for preventing the barrel-shaped part of the innermost layer from rotating. Each end plate side rotation blocking unit comprises a bar-shaped part with a non-circular section, and each bar-shaped part is inserted into the barrel-shaped part of the innermost layer in a communicating mode through a leading hole arranged in the center of the end portion of the other square side of the barrel-shaped part of the innermost layer. The shape of the leading hole is same as that of the non-circular section.
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 the meteorologies such as temperature, wind, snow, thereby cause the tension force of stringing to change, when the tension variation of stringing is large, 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.Proposed to have tension compensator as shown in Figure 1 in the past, this tension compensator has: bar, inner core, urceolus and shell, 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 locked by inward flange section and export-oriented flange part respectively to urceolus, inner core and bar; End plate, it is arranged on the opposing party's side of shell, is used for the end of the opposing party's side of shell is sealed; The line connecting part, it is arranged on side's side of bar, is used for connecting 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 because stringing is twisted wire, the trend that the meeting sustainable existence rotates to a direction, when the inner cylinder portion of tension compensator is rotated along with the rotation of stringing, thereby being changed, the position of scaleplate affects the identity of scaleplate.In addition, if inner core rotates along with the rotation of stringing,, serious meeting causes the danger such as broken string in the situation that destroying the structure of twisted wire.
The utility model content
The utility model is to make in view of above situation, and its purpose is to provide a kind of tension compensator that can prevent that inner core from rotating, and is inserted through the spline unit of inner core by setting, thereby prevents that inner core from rotating along with the rotation of stringing.
In addition, by line connecting part side spline unit is set, thereby with the air wire connecting member with respect to the cartridge spline, therefore can prevent the air wire connecting member 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 order to solve above-mentioned problem, the first technical scheme of the present utility model provides a kind of tension compensator, and this tension compensator has: a plurality of cartridges, and they nestedly arrange so that different radiuses is coaxial, and can relatively move along axis direction respectively; A plurality of elastomeric elements, they clamp between two above-mentioned cartridges of diametrically adjacent setting coaxially; End plate, it is arranged on the end of 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, is used for connecting stringing; This tension compensator is characterised 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, be used for preventing 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 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, insert and lead in the most inboard cartridge.
The second technical scheme of the present utility model is on the basis of the first technical scheme, it is characterized in that, also has line connecting part side spline unit, this line connecting part side spline unit is arranged between the end of side's side of above-mentioned line connecting part and the most inboard above-mentioned cartridge, be used for preventing above-mentioned line connecting part relatively rotating with respect to above-mentioned cartridge, above-mentioned line connecting part side spline unit comprises: first component, and it is non-circular through hole that itself and above-mentioned cartridge are provided with the cross section coaxially; Second component, 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.
The 3rd technical scheme of the present utility model is on the basis of the first or second technical scheme, it is characterized in that, above-mentioned end plate side spline unit is long slab.
The 4th technical scheme of the present utility model is on the basis of the first or second technical scheme, it is characterized in that, the cross section of above-mentioned end plate side spline unit is equilateral polygon.
The 5th technical scheme of the present utility model is on the basis of the first technical scheme, it is characterized in that, above-mentioned elastomeric element is coil spring.
Use tension compensator of the present 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 identify the scale of scaleplate.
Description of drawings
Fig. 1 is the figure of tension compensator in the past.
Fig. 2 is the constructional drawing of the tension compensator of an embodiment of the present utility model.
Fig. 3 is that the A arrow of Fig. 2 is to view.
Fig. 4 is that the B arrow of Fig. 2 is to view.
Fig. 5 is the decomposing schematic representation of end plate side spline of the present utility model unit.
Fig. 6 is the decomposing schematic representation of line connecting part side spline of the present utility model unit.
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 ... the line connecting part; 9 ... the perforate support; 2a, 3a, 4a ... export-oriented flange part; 1b, 2b, 3b ... inward flange section; 10a ... through hole; 20 ... long slab; 21 ... connecting pin; 21a ... axial region; 21b ... cross-section; 21c ... the anti-delinking part.
The specific embodiment
Below based on accompanying drawing an embodiment of the present utility model is described.
Fig. 1 is the figure of tension compensator in the past, and Fig. 2 is the constructional drawing of the tension compensator of an embodiment of the present utility model.Fig. 3 is that the A arrow of Fig. 2 is to view.Fig. 4 is that the B arrow of Fig. 2 is to view.Fig. 5 is the decomposing schematic representation of end plate side spline of the present utility model unit, and Fig. 6 is the decomposing schematic representation of line connecting part side spline of the present utility model unit.
As shown in Figure 2, 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 with the rope of perforate support 9 combinations of the upper surface that is installed in shell 1 by pillar supporting.And the end of stringing and line connecting part 8 combinations that are installed on the jag of bar 4 spur contact line via electric wire.Fig. 3 is that the A arrow of Fig. 2 is to view.Fig. 4 is that the B arrow of Fig. 2 is to view.
The assembled state that has represented tension compensator among Fig. 2, the tension compensator of the present embodiment, 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 in coaxially between the inner and outer circumferential surfaces of bar 4, inner core 3, urceolus 2 and shell 1 from the inboard.
Thus, even wind, snow or the External Force Acting that freezes etc. because long slab 20 engages with bullport 23, can prevent that thus inner core from being bar 4 rotations.Equally, though electric car by 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 being 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 Inspection.
In addition, because stringing is twisted wire, always there is the tendency of rotating to a direction, for anti-principal vertical line connecting member relatively rotating with respect to cartridge, and wired connecting part side spline unit is set, this line connecting part side spline unit arranges between the end of side's side of online connecting part 8 and bar 4, comprises as the rod end plate 10 of first component with as the connecting pin 21 of second component.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.Be provided with coaxially the cross-section 21b of rectangular cross sectional shape in the side opposite with line connecting part 8 of axial region 21a, be provided with anti-delinking part 21c in the side opposite with axial region 21a of this cross-section 21b.
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 in the situation that be 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 base end part of the side opposite with discharging end of line connecting part 8 leading section with axial region 10a is welded, both are become one.
By line connecting part side spline unit being set, anti-principal vertical line connecting part relatively rotating with respect to cartridge.
According to 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 identify the scale of scaleplate.
Embodiment described above is an example only, certainly is not limited to this.For example, although be that end plate side spline unit is made as long slab in the present embodiment, it also can be equilateral polygon that end plate side spline unit gets shape, as long as can bring into play the effect that prevents that inner cylinder portion from rotating, then its shape is not done particular determination.
Above; although tension compensator of the present utility model is illustrated; but the utility model is not limited to the embodiment of above-mentioned explanation; in the scope that does not break away from purport of the present utility model, can carry out various distortion and combination, and these distortion and combination are also included within the protection domain of the present utility model.
Claims (5)
1. tension compensator has:
A plurality of cartridges, they nestedly arrange so that different radiuses is coaxial, and can relatively move along axis direction respectively;
A plurality of elastomeric elements, they clamp between two above-mentioned cartridges of diametrically adjacent setting coaxially;
End plate, it is arranged on the end of 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, is used for connecting stringing;
This tension compensator is characterised 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 for preventing 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 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.
2. tension compensator according to claim 1 is characterized in that,
Also have line connecting part side spline unit, this line connecting part side spline unit is arranged between the end of side's side of above-mentioned line connecting part and the most inboard above-mentioned cartridge, is used for preventing 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 component, and it is non-circular through hole that itself and above-mentioned cartridge are provided with the cross section coaxially; Second component, 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.
3. tension compensator according to claim 1 and 2 is characterized in that,
Above-mentioned end plate side spline unit is long slab.
4. tension compensator according to claim 1 and 2 is characterized in that,
The cross section of above-mentioned end plate side spline unit is equilateral polygon.
5. tension compensator according to claim 1 is characterized in that,
Above-mentioned elastomeric element is coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130832 CN202703322U (en) | 2012-03-30 | 2012-03-30 | Tension compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130832 CN202703322U (en) | 2012-03-30 | 2012-03-30 | Tension compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202703322U true CN202703322U (en) | 2013-01-30 |
Family
ID=47583653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220130832 Expired - Lifetime CN202703322U (en) | 2012-03-30 | 2012-03-30 | Tension compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202703322U (en) |
-
2012
- 2012-03-30 CN CN 201220130832 patent/CN202703322U/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 |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |