专利摘要:
A doctor assembly for a paper making machine including a force fed lubricated bearing structure therefor with a doctor shaft having a journal axially oscillatable in an annular bearing housing with a bearing sleeve insert between the journal and the housing having axially extending grooves therein with annular outer end seals axially outwardly of the bearing insert and annular lip seals at the end of the bearing insert carried on the bearing and permitting flow of lubricant axially outwardly from the bearing to the annular pressure spaces between the lip seals and end seals and passages extending between the annular pressure chambers between the seals to the center of the bearing and having check valves in the passages preventing back flow but permitting lubricant to flow from the annular pressure chambers to the center of the bearing.
公开号:SU1281178A3
申请号:SU792777105
申请日:1979-06-13
公开日:1986-12-30
发明作者:Фрэнсиз Шмаенг Джон
申请人:Белойт Корпорейшн (Фирма);
IPC主号:
专利说明:

This invention relates to bearings with forced lubrication for paper machine scrapers.
The aim of the invention is to improve lubrication conditions.
FIG. 1 shows the proposed scraper bearing, the cross section j in FIG. 2 shows an embodiment of a sleeve with longitudinal grooves} in FIG. 3 is the same, with the chevron grooves J in FIG. A - the location of the bearing elements and the lubricant movement (along the arrows) when the pinol is moved to the right; FIG. 5 is the same when moving the quill left.
The bearing of the scraper of the paper machine contains pin pin 1 with a pin. enclosing the annular cage 2. Between them is placed the sleeve 3 with the supporting surface, mounted in the annular cage 2 stationary. In the annular casing 2 and the sleeve 3, the channels 4 are provided for supplying lubricant and the channels 5, 6 and 7 for the passage of lubricant. The sleeve 3 is provided with grooves 8 that connect the central channel 4 for supplying lubricant with the ends of the sleeve 3. The grooves 8 can be made long. on the outer and inner surfaces of the sleeve (Fig. 20 or Shevron and on its inner surface (Fig. 3).
In the annular cage 2 at the ends of the sleeve 3, seals 9 and 10 are fixedly mounted in the form of cuffs mounted to enable lubrication from the working cavity of the bearing. At the pin of the pintle 1, additional seals 11 and 12 are mounted, forming lubrication chambers 13 and 14 with said seals 9, 10.
In the annular cage 2, radial channels 15 and 16 are provided for draining lubricant from lubricant chambers 13 and 14 to channels 5 and 6.
In the radial channels 15 and 16, at the exit of the lubricant into the channels 5, 6, check valves 17, 18 are placed. In addition, radial channels 19 and 20 are made in the annular casing 2 for the initial supply of lubricant to the lubricating chambers 13 and 14. On the inner surface of the annular sleeves 2, sleeves 21 and 22 are mounted at its ends, which are made smooth for engagement with seals 11 and 12 sliding in an axial direction.
five
0
five
five
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The bearing scraper works as follows.
Before operating the scraper, the lubricant enters the lubrication chambers 13 and 14 through the channels 19 and 20 for the initial lubricant supply. During operation, these channels are closed with plugs to ensure that the pressure in the lubrication chambers 13 and 14 is applied. Further, the lubricant from the said lubrication chambers flows through the central channel 4 in the annular casing 2 and channels 7 in the sleeve 3 to the bearing surface of the sleeve to provide lubrication with a pin quill 1 when its reciprocating movement.
When the quill moves to the right (Fig. 4), the seal 11 moves to the right and the lubrication chamber 13 decreases. A permanently installed cage seal 9 in the form of a cuff prevents the passage of lubricant through it. As a result, the lubricant from the lubrication chamber 13 through the radial channel 15 and the check valve 17 enters the channel 5. The other seal 10 allows the lubricant to pass from the bearing surface of the sleeve 3 to the lubrication chamber 14, which expands to the right with the indicated movement of the quill 1 suction action - lubrication of the channel 15.
Thus, the lubricant is injected — by reducing the size of one chamber and by increasing the volume of the other chamber. I.
Similar processes occur when the quill moves to the left, when the lubrication chamber 14 decreases and the lubrication chamber 13 increases.
Formula images
et e and
权利要求:
Claims (4)
[1]
This invention relates to bearings with forced lubrication for paper machine scrapers. The aim of the invention is to improve lubrication conditions. FIG. 1 shows the proposed scraper bearing, the cross section j in FIG. 2 shows an embodiment of a sleeve with longitudinal grooves} in FIG. 3 is the same, with the chevron grooves J in FIG. A is the location of the bearing elements and the lubricant movement (along the arrows) when the quill is moved to the right; FIG. 5 the same, when moving the pintle to the left. The bearing of the scraper of the paper machine contains pin pin 1 with a pin. enclosing the annular cage 2. Between them is placed the sleeve 3 with the supporting surface, mounted in the annular cage 2 stationary. In the annular casing 2 and the sleeve 3, the channels 4 are provided for the supply of lubricant and the channels 5, 6 and 7 for the passage of lubricant. The sleeve 3 is provided with grooves 8 that communicate the central channel 4 for the supply of lubricant with the ends of the sleeve 3. The grooves 8 can be made longitudinal to the outer and the inner surface of the sleeve (Fig. 20 or a shevron and on its inner surface (Fig. 3). In the annular casing 2, the ends of the sleeve 3 are fixedly mounted seals 9 and 10 in the form of cuffs installed to ensure the passage of lubricant from the working cavity bearing. Pin on pin oli 1, additional seals 11 and 12 are mounted, forming lubrication chambers 13 and 14 with said seals 9, 10. Radial channels 15 and 16 are made in the annular casing 2 to drain grease from lubrication chambers 13 and 14 into channels 5 and 6. radial channels 15 and 16 at the lubrication output in channels 5, 6 are placed check valves 17, 18. In addition, radial channels 19 and 20 are provided in the annular casing 2 for the initial supply of lubricant to the lubrication chambers 13 and 14. On the inner surface of the annular sleeves 2 at its ends are installed sleeves 21 and 22, made smooth d l interaction with axially detachable seals 11 and 12. The scraper bearing operates as follows. Before operating the scraper, the lubricant enters the lubrication chambers 13 and 14 through the channels 19 and 20 for the initial lubricant supply. During operation, these channels are closed with plugs to ensure that the pressure in the lubrication chambers 13 and 14 is applied. Further, the lubricant from the said lubrication chambers flows through the central channel 4 in the annular casing 2 and channels 7 in the sleeve 3 to the bearing surface of the sleeve to provide lubrication with a pin quill 1 when its reciprocating movement. When the quill moves to the right (Fig. 4), the seal 11 moves to the right and the lubrication chamber 13 decreases. A permanently installed cage seal 9 in the form of a cuff prevents the passage of lubricant through it. As a result, the lubricant from the lubrication chamber 13 through the radial channel 15 and the check valve 17 enters the channel 5. Other sealing 10 and 10 ensures the lubricant passes from the bearing surface of the sleeve 3 to the lubricating chamber 14, which expands to the right with the indicated movement of the quill 1 the effect is on the lubricant from channel 15. Thus, the lubricant is injected by reducing the size of one chamber and increasing the volume of the other chamber. I. Similar processes also occur when the quill moves to the left, when the lubrication chamber 14 decreases and the lubrication chamber 13 increases. Formula Fig. 1, the scraper bearing of a paper machine with a forced lubricant supply containing a quill with a trunnion, covering its annular cage, a sleeve with a supporting surface, made in the annular cage and the bushing, channels for supplying and passing lubricant, and also fixedly mounted in the annular cage at the ends of the sleeve of the seal in the form of cuffs, characterized in that, in order to improve the lubrication conditions, it is equipped with additional quill pin mounted on the trunnion
On the other hand, forming lubrication chambers with said seals, communicating with lubrication supply channels through radial channels made in the annular casing for removing 5 lubricants from the lubricant chambers and placed in them directly at the exit of the radial channels and check valves in the annular casing radial channels for the initial supply of lubricant to the lubricant chambers, while the sleeves of the sleeve located in the annular casing at the ends are fitted with the possibility of providing lubrication passage from the working t5
84
bearing cavities, and at least one of the surfaces of the sleeve are made grooves j connecting the center of the channel for supplying lubrication to the ends of the sleeve.
[2]
2. A bearing according to Claim 1, characterized in that the grooves of the sleeve are longitudinal.
[3]
3. Bearing in accordance with claim 1, characterized in that the grooves of the sleeve are made chevron.
[4]
4. Bearing according to claim 1, characterized in that bushings are mounted on the inner surface of the annular cage at its ends.
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同族专利:
公开号 | 公开日
IN149674B|1982-03-06|
CA1104622A|1981-07-07|
JPS54163249A|1979-12-25|
ES481520A1|1980-06-16|
PL129659B1|1984-05-31|
GB2023239B|1982-10-20|
IT1121336B|1986-04-02|
BR7903443A|1980-01-15|
MX150149A|1984-03-22|
JPS59732B2|1984-01-09|
GB2023239A|1979-12-28|
US4181378A|1980-01-01|
PH14969A|1982-02-05|
IT7923385D0|1979-06-08|
PL216293A1|1980-03-10|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
US05/915,369|US4181378A|1978-06-14|1978-06-14|Doctor bearing integral pressure lubrication|
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