CN203972700U - A kind of improve spring initial tension around spring arrangement - Google Patents
A kind of improve spring initial tension around spring arrangement Download PDFInfo
- Publication number
- CN203972700U CN203972700U CN201420097090.6U CN201420097090U CN203972700U CN 203972700 U CN203972700 U CN 203972700U CN 201420097090 U CN201420097090 U CN 201420097090U CN 203972700 U CN203972700 U CN 203972700U
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- Prior art keywords
- spring
- mandrel
- initial tension
- paw
- pantograph
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- Expired - Lifetime
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- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229910000639 Spring steel Inorganic materials 0.000 abstract description 3
- 230000003137 locomotive effect Effects 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Springs (AREA)
Abstract
The utility model discloses a kind of improve spring initial tension around spring arrangement.This improve spring initial tension around spring arrangement, comprise mandrel, in the end of mandrel, be provided with paw and for locating the alignment pin of paw, next-door neighbour paw place is provided with type conical bench, at the other end of mandrel, be provided with annular groove and along the keyway of axial setting.Origin or beginning makes pantograph spring in manufacturing process, obtain more stable initial tension with type conical bench, and the axiality of pantograph is effectively guaranteed; The paw of mandrel front end guarantees not play of spring steel wire in manufacturing process; Alignment pin guarantees that manufacturing process medi-spring origin or beginning length is consistent; The restricted mandrel of annular groove inserts the degree of depth of torsion machine, thereby guarantees that the length of pantograph spring is unified.
Description
Technical field
The utility model patent relates to spring technical field, particularly a kind of improve spring initial tension around spring arrangement.
Background technology
Pantograph spring is a kind of spring that has higher initial tension, and it is an important electric component in electric locomotive, by it, directly contacts with contact net, electric current is introduced to locomotive from contact net, for the electrical equipment in car.It is arranged on roof, and the used time, in folding situation, is not raised up to during utilization with contact net and contacts.
Pantograph spring is mainly used on high-speed electrified locomotive, and electric locomotive utilizes the pantograph of roof to obtain electric energy from contact net, tractor-trailer train operation.Therefore, to be electric locomotive be subject to a kind of current collection device of obtaining current from contact net contact wire to pantograph.It is arranged on the roof of electric locomotive by insulator, is a kind of mechanical component of radial type.In several large parts, rising bow spring is an important key component.When pantograph rises, its slide plate directly contacts with contact line conducting wire, from contact line conducting wire, is subject to obtaining current, and it is sent to locomotive inside by roof bus, for locomotive.Rising bow process is the process that bow spring falls in compressed air compression, and the size of throttle orifice, is directly controlling the speed that compressed air enters transmission cylinder.After throttle orifice mixes up, rising bow is initial, and the pressure that falls bow spring is minimum, overcomes the needed air pressure of this power less, and the turnover draught head of throttle orifice is maximum, and now in transmission cylinder, the movement of piston is very fast, and rising bow is rapid; Along with the rising gradually of bow, the pressure that falls bow spring increases gradually, overcomes the needed air pressure of this power and also increases gradually.Pantograph, when work, can change with the height change of contact net, and maintenance contacts with contact net.Require pantograph spring to there is higher initial tension.
Summary of the invention
The purpose of this utility model is the deficiency existing for prior art, provide a kind of improve spring initial tension around spring arrangement, guarantee that the pantograph spring winding up has higher initial tension.
For achieving the above object, the technical scheme adopting around spring arrangement of the utility model raising spring initial tension is:
Improve spring initial tension around a spring arrangement, comprise mandrel, in the end of mandrel, be provided with paw and for locating the alignment pin of paw, next-door neighbour paw place is provided with type conical bench, at the other end of mandrel, is provided with annular groove and along the keyway of axial setting.
Described mandrel material is 52CrMnMo.
The utility model compared with prior art, has the following advantages:
1, origin or beginning makes pantograph spring in manufacturing process, obtain more stable initial tension with type conical bench, and the axiality of pantograph is effectively guaranteed;
2, the paw that mandrel front end arranges guarantees not play of spring steel wire in manufacturing process;
3, the alignment pin of mandrel front end, guarantees that manufacturing process medi-spring origin or beginning length is consistent;
4, annular groove is provided with the degree of depth that restriction mandrel inserts torsion machine, thereby guarantees that the length of pantograph spring is unified.
Accompanying drawing explanation
Fig. 1 is for improving the structural representation around spring arrangement of spring initial tension.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiments and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
As shown in Figure 1 a kind of improve spring initial tension around spring arrangement, comprise and adopt the mandrel 1 that material is 52CrMnMo, in the end of mandrel, be provided with paw 2 and for locating the alignment pin 3 of paw, next-door neighbour paw place is provided with type conical bench 11, at the other end of mandrel, is provided with annular groove 12 and along the keyway 13 of axial setting.
Type conical bench makes pantograph spring in manufacturing process, obtain more stable initial tension, and the axiality of pantograph spring is effectively guaranteed, and mandrel front end has paw, guarantees not play of spring steel wire in manufacturing process; Mandrel front end has alignment pin and guarantees that manufacturing process medi-spring origin or beginning length is consistent.
Claims (2)
- One kind improve spring initial tension around spring arrangement, comprise mandrel, it is characterized in that: in the end of mandrel, be provided with paw and for locating the alignment pin of paw, next-door neighbour paw place is provided with type conical bench, at the other end of mandrel, be provided with annular groove and along the keyway of axial setting.
- Raising spring initial tension according to claim 1 around spring arrangement, it is characterized in that: described mandrel material is 52CrMnMo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097090.6U CN203972700U (en) | 2014-03-05 | 2014-03-05 | A kind of improve spring initial tension around spring arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097090.6U CN203972700U (en) | 2014-03-05 | 2014-03-05 | A kind of improve spring initial tension around spring arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203972700U true CN203972700U (en) | 2014-12-03 |
Family
ID=51970186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420097090.6U Expired - Lifetime CN203972700U (en) | 2014-03-05 | 2014-03-05 | A kind of improve spring initial tension around spring arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203972700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782303A (en) * | 2016-05-06 | 2016-07-20 | 江西昌河航空工业有限公司 | Temperature difference adjustment method capable of adjusting initial tension of spring |
-
2014
- 2014-03-05 CN CN201420097090.6U patent/CN203972700U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782303A (en) * | 2016-05-06 | 2016-07-20 | 江西昌河航空工业有限公司 | Temperature difference adjustment method capable of adjusting initial tension of spring |
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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: 20141203 |
|
| CX01 | Expiry of patent term |