CN204749893U - Non -maintaining ratchet compensation arrangement is sealed in tilting installation - Google Patents
Non -maintaining ratchet compensation arrangement is sealed in tilting installation Download PDFInfo
- Publication number
- CN204749893U CN204749893U CN201520431464.8U CN201520431464U CN204749893U CN 204749893 U CN204749893 U CN 204749893U CN 201520431464 U CN201520431464 U CN 201520431464U CN 204749893 U CN204749893 U CN 204749893U
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- CN
- China
- Prior art keywords
- ratchet
- holding tank
- hole
- ratchet shaft
- axle center
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- Expired - Fee Related
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Abstract
The utility model discloses a non -maintaining ratchet compensation arrangement is sealed in tilting installation, including ratchet body and ratchet shaft, this ratchet body axle center department has an axle center through -hole, and this ratchet shaft passes this axle center through -hole, the both ends of axle center through -hole are equipped with that the radius is greater than this axle center through -hole radially is annular holding tank, the both ends of this ratchet shaft have the radial spindle nose that outside extension and radius are less than this ratchet shaft, fixed cover is equipped with the retaining ring on these 2 spindle noses, the interior terminal surface of these 2 retaining rings is relative with the perpendicular side of this holding tank, the circumference surface of these 2 retaining rings and the circumferential inner wall clearance fit of this holding tank, and simultaneously, be equipped with from lubricating sliding bearings between the both ends of this axle center through -hole and the both ends of this ratchet shaft, the interior terminal surface and the erecting of this holding tank of these 2 retaining rings are equipped with self -lubricating terminal surface bearing between the side, and, this holding tank is embedded to have the sealing washer. The utility model has the advantages that: sealing performance is better, can prevent that outside impurity from getting into inside the bearing arrangement.
Description
Technical field
The present invention relates to track traffic component technology field, especially relate to a kind of tiltable and closed non-maintaining ratchet compensating device is installed.
Background technology
Ratchet compensating device is mainly used in electrification railway contact net and city rail traffic flexible suspension and casts anchor place's compensation adjustment thread tension force.Along with the development of high speed railway, the deployment area of ratchet compensating device is more extensive, and its environment for use, installing condition be more variation also.
The non-maintaining ratchet compensating device of tradition self-lubricating is Open architecture, its under the harsies environment such as many dirt, dust storm during Long-Time Service the impurity such as dust and sand and dust in the external world be easy to enter in ratchet compensating device bearing arrangement, thus destruction bearing arrangement, reduce ratchet and compensate driving efficiency, line stress is declined, affects traffic safety.Simultaneously, need to adopt inclination installation form to ratchet compensating device in tunnel, and the non-maintaining ratchet compensating device of traditional self-lubricating is owing to adopting flange self-lubricating bearing, when tilting to install, the friction coefficient of flange bearing breach is large and easily damage bearing self-lubricating layer, cause that device driving efficiency is low, fatigue performance is poor, the performance requriements of TB/T2075 cannot be met, therefore have to replace with rolling bearing structure, but antifriction-bearing box needs regular oiling to safeguard, routine amount is large.
Summary of the invention
The object of this invention is to provide a kind of tiltable and install closed non-maintaining ratchet compensating device, it is better that it has sealing property, can prevent foreign matter from entering the feature of bearing arrangement inside.
The technical solution adopted in the present invention is: tiltable is installed and closed non-maintaining ratchet compensating device, comprise ratchet body and ratchet shaft, this ratchet body axle center place has axis through-hole, this ratchet shaft is through this axis through-hole, the two ends of described axis through-hole are provided with the ringwise holding tank that radius is greater than the radius of this axis through-hole, the both ends of this ratchet shaft have and to stretch out and radius is less than the spindle nose of the radius of this ratchet shaft, on these 2 spindle noses, fixed cover is provided with back-up ring, the inner end surface of these 2 back-up rings is relative with the perpendicular side of this holding tank, the circumferential surface of these 2 back-up rings and the circumferential inner wall free-running fit of this holding tank, simultaneously, self-lubricating plain bearing is provided with between the both ends of this axis through-hole and the both ends of this ratchet shaft, self-lubricating end face bearing is provided with between the inner end surface of these 2 back-up rings and the perpendicular side of this holding tank, and, this holding tank is embedded with seal ring.
Described 2 back-up rings are corresponding to be between two screwed onto on these 2 spindle noses.
The outside described spindle nose being positioned at this back-up ring is provided with yoke plate and locating dowel pin from the inside to the outside successively.
The present invention is advantageously: sealing property is better, can prevent foreign matter from entering bearing arrangement inside.Tiltable of the present invention is installed and is closed non-maintaining ratchet compensating device by adopting back-up ring design, and introducing self-lubricating plain bearing and self-lubricating end face bearing coordinate, make ratchet shaft and ratchet body can have comparatively stable structure and lubricating comparatively smoothly, the requirement of tilting to install can be met, and there is seal approach can prevent dust or sand and dust from entering bearing arrangement inside.After tested, this tiltable is installed closed non-maintaining ratchet compensating device driving efficiency and is greater than 97%, and times of fatigue is greater than 20000 times.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is that the front sectional view closing non-maintaining ratchet compensating device is installed in the tiltable of embodiments of the invention;
Fig. 2 is the front sectional view of ratchet body of the present invention;
Fig. 3 is the front sectional view of ratchet shaft of the present invention.
In figure:
10, ratchet body, 11, axis through-hole, 12, holding tank;
20, ratchet shaft, 21, spindle nose;
30, back-up ring;
40, self-lubricating plain bearing;
50, self-lubricating end face bearing;
60, seal ring;
71, yoke plate, 72, locating dowel pin.
Detailed description of the invention
Embodiment, is shown in shown in Fig. 1 to Fig. 3: tiltable is installed and closed non-maintaining ratchet compensating device, comprises ratchet body 10 and ratchet shaft 20.This ratchet body 10 axle center place has axis through-hole 11, and this ratchet shaft 20 is through this axis through-hole 11.The two ends of this axis through-hole 11 are provided with the ringwise holding tank 12 that radius is greater than the radius of this axis through-hole 11.The both ends of this ratchet shaft 20 have and to stretch out and radius is less than the spindle nose 21 of the radius of this ratchet shaft 20.These 2 spindle noses 21 are provided with back-up ring 30 by the mode fixed cover such as to be spirally connected.The inner end surface of these 2 back-up rings 30 is relative with the perpendicular side of this holding tank 12.Relatively so-called, refer in the middle of the two and can be abutted together both during any parts.Obviously, the internal diameter that the internal diameter of this back-up ring 30 is approximately equal to the external diameter of this stopper 21, the external diameter of this back-up ring 30 is roughly equivalent to this holding tank 12.Such as, the circumferential surface of these 2 back-up rings 30 and the circumferential inner wall free-running fit of this holding tank 12.Meanwhile, be provided with between the both ends of this axis through-hole 11 and the both ends of this ratchet shaft 20 between self-lubricating plain bearing 40, the inner end surface of these 2 back-up rings 30 and the perpendicular side of this holding tank 12 and be provided with self-lubricating end face bearing 50.And this holding tank 12 is embedded with seal ring 60.Certainly, the inner ring of sealing circle 60 and the outer ring of this back-up ring 30 are formed and are sealed and matched.Like this, this tiltable is installed and is closed non-maintaining ratchet compensating device by adopting back-up ring design, and introducing self-lubricating plain bearing and self-lubricating end face bearing coordinate, make ratchet shaft and ratchet body can have comparatively stable structure and lubricating comparatively smoothly, the requirement of tilting to install can be met, and there is seal approach can prevent dust or sand and dust from entering bearing arrangement inside.
Further say, the outside this spindle nose 21 being positioned at this back-up ring 30 is provided with yoke plate 71 and locating dowel pin 72 from the inside to the outside successively.Like this, make the structure of the closed non-maintaining ratchet compensating device of this tiltable installation more compact.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. tiltable is installed and is closed non-maintaining ratchet compensating device, comprise ratchet body (10) and ratchet shaft (20), this ratchet body (10) axle center place has axis through-hole (11), this ratchet shaft (20) is through this axis through-hole (11), it is characterized in that: the two ends of described axis through-hole (11) are provided with the ringwise holding tank (12) that radius is greater than the radius of this axis through-hole (11), the both ends of this ratchet shaft (20) have and to stretch out and radius is less than the spindle nose (21) of the radius of this ratchet shaft (20), the upper fixed cover of these 2 spindle noses (21) is provided with back-up ring (30), the inner end surface of these 2 back-up rings (30) is relative with the perpendicular side of this holding tank (12), the circumferential surface of these 2 back-up rings (30) and the circumferential inner wall free-running fit of this holding tank (12), simultaneously, self-lubricating plain bearing (40) is provided with between the both ends of this axis through-hole (11) and the both ends of this ratchet shaft (20), self-lubricating end face bearing (50) is provided with between the inner end surface of these 2 back-up rings (30) and the perpendicular side of this holding tank (12), and, this holding tank (12) is embedded with seal ring (60).
2. tiltable according to claim 1 is installed and is closed non-maintaining ratchet compensating device, it is characterized in that: described 2 back-up rings (30) are corresponding to be between two screwed onto on these 2 spindle noses (21).
3. tiltable according to claim 1 and 2 is installed and is closed non-maintaining ratchet compensating device, it is characterized in that: the outside described spindle nose (21) being positioned at this back-up ring (30) is provided with yoke plate (71) and locating dowel pin (72) from the inside to the outside successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431464.8U CN204749893U (en) | 2015-06-19 | 2015-06-19 | Non -maintaining ratchet compensation arrangement is sealed in tilting installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431464.8U CN204749893U (en) | 2015-06-19 | 2015-06-19 | Non -maintaining ratchet compensation arrangement is sealed in tilting installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204749893U true CN204749893U (en) | 2015-11-11 |
Family
ID=54464638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520431464.8U Expired - Fee Related CN204749893U (en) | 2015-06-19 | 2015-06-19 | Non -maintaining ratchet compensation arrangement is sealed in tilting installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204749893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943563A (en) * | 2015-06-19 | 2015-09-30 | 中铁电气化局集团有限公司 | Close maintenance-free ratchet compensation device which can be arranged in inclined mode |
-
2015
- 2015-06-19 CN CN201520431464.8U patent/CN204749893U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943563A (en) * | 2015-06-19 | 2015-09-30 | 中铁电气化局集团有限公司 | Close maintenance-free ratchet compensation device which can be arranged in inclined mode |
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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: 20151111 Termination date: 20180619 |