CN203131040U - Draw bar shaft sealing device - Google Patents
Draw bar shaft sealing device Download PDFInfo
- Publication number
- CN203131040U CN203131040U CN 201320156334 CN201320156334U CN203131040U CN 203131040 U CN203131040 U CN 203131040U CN 201320156334 CN201320156334 CN 201320156334 CN 201320156334 U CN201320156334 U CN 201320156334U CN 203131040 U CN203131040 U CN 203131040U
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- CN
- China
- Prior art keywords
- box body
- body wall
- pull rod
- rod shaft
- pressure cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a draw bar shaft sealing device, which comprises a box body wall and a draw bar shaft penetrating the box body wall, wherein a step-structure sliding copper bush of which the big end is positioned on the outer side of the box body wall is arranged between the box body wall and the draw bar shaft; the draw bar shaft on the outer side of the box body wall is sheathed with a pressing cap fixedly connected with the box body wall; a plurality of oil scraping rings made of polytetrafluoroethylene and surrounding the draw bar shaft are arranged in the pressing cap; a spacer bush is arranged between adjacent oil scraping rings; a pressing bush is respectively arranged between the sliding copper bush and the adjacent oil scraping ring as well as between one end of the pressing cap, which is far away from the box body wall, and the adjacent oil scraping ring; one end of the pressing cap, which is far away from the box body wall, is provided with a regulation threaded sleeve which is in threaded connection with the pressing cap and is sheathed on the draw bar shaft; and the box body wall is provided with a current return hole communicated into the pressing cap. According to the draw bar shaft sealing device disclosed by the utility model, the problem of lubricating oil leakage when the draw bar shaft on a GD packing machine carries out reciprocating motion is solved, the normal operation of the GD packing machine is guaranteed, the lubricating oil waste is avoided, and the tidiness of the operation environment is maintained.
Description
Technical field
The utility model relates to a kind of seal arrangement, and is specifically a kind of for GD wrapping machine pull bar shaft seal.
Background technique
The GD wrapping machine is China's cigarette packaging equipment that the eighties is introduced from Italy last century, and this equipment has application in each tobacco productive corporation of China.The GD wrapping machine passes the pull rod shaft of wrapping machine box body wall and does axially reciprocating always in the course of the work, and the general motion frequency is about 400 times/minute, and stroke is 100mm.Be the to-and-fro motion of the avoiding pull rod shaft wearing and tearing to GD wrapping machine box body wall, the sliding sleeve of a ladder structure is set between GD wrapping machine box body wall endoporus and pull rod shaft, as shown in Figure 1, pull rod shaft is located in the endoporus of sliding sleeve, and the big end of sliding sleeve is positioned at the box body wall outside.Be to guarantee the normal to-and-fro motion of pull rod shaft, reduce the friction with the sliding sleeve endoporus, need be lubricated pull rod shaft, for avoiding oil leak, at the big end of sliding sleeve seal groove is set, seal ring is set in the seal groove.At present, the lubricating system of pull rod shaft is by being splashed to the oil lubrication on pull rod shaft surface in the cabinet, and namely pull rod shaft is taken the lubricant oil that is splashed to the pull rod shaft surface in the sliding sleeve to and to be lubricated in the high speed to-and-fro motion.Because the motion mode of pull rod shaft is axially reciprocating, lubricant oil is when taking seal ring to by pull rod shaft, there is certain pressure to exist, so as long as pull rod shaft or seal ring have wearing and tearing will cause oil leak, the leakage of lubricant oil not only can influence the normal operation of GD wrapping machine, stained operating environment, and cause the unnecessary waste of lubricant oil.
The model utility content
The utility model technical issues that need to address provide a kind of pull rod shaft seal arrangement that can avoid oil leak, to guarantee the normal operation of GD wrapping machine, avoid the waste of lubricant oil.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is:
A kind of pull rod shaft seal arrangement, comprise box body wall and the pull rod shaft that is located in the box body wall, the slip copper sheathing that big end is positioned at the hierarchic structure in the box body wall outside is set between described box body wall and the pull rod shaft, be with the pressure cap of fixedlying connected with box body wall on the pull rod shaft in the described box body wall outside, described pressure cap inside arranges and somely is looped around scraper ring on the pull rod shaft by what teflon was made, between the adjacent scraper ring spacer is set, between slip copper sheathing and the adjacent scraper ring, pressure cap is away between an end of box body wall and the adjacent scraper ring gland being set; Described pressure cap is provided with the adjustment swivel nut on the pull rod shaft of being sleeved on that is threaded with pressure cap away from an end of box body wall; Described box body wall is provided with the return port that is communicated to pressure cap inside.
Further improvement of the utility model is: it is trapezoidal that the cross section of described scraper ring and spacer is arranged to work in coordination, and the big end of scraper ring contacts with pull rod shaft, and a plurality of oilholes of scraping are set on the scraper ring, and a plurality of oil leaking holes are set on the spacer.
Further improvement of the utility model is: an end of described gland is for cooperating the conical surface of scraper ring, and the other end is the plane.
Further improvement of the utility model is: described scraper ring is provided with two.
Further improvement of the utility model is: the diameter of described pressure cap endoporus is greater than the diameter of the big end of slip copper sheathing, on the box body wall in the slip copper sheathing outside return port II that is communicated with pressure cap is set, on the box body wall in the pressure cap outside return port I that is communicated to pressure cap inside by reflow pipe is set.
Further improvement of the utility model is: described pressure cap is connected on the box body wall by screw.
Further improvement of the utility model is: the annular groove around pull rod shaft is offered in the exterior edge face of described adjustment swivel nut, and the outside framework oil seal that is sleeved on the pull rod shaft is set in the annular groove.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The problem of oil leak had guaranteed the normal operation of GD wrapping machine when the utility model had solved the to-and-fro motion of GD wrapping machine upper connecting rod axle, had avoided the waste of lubricant oil, had safeguarded the clean and tidy of operating environment.
Be equipped with some scraper rings of being made by teflon on the pull rod shaft in the pressure cap, the endoporus of scraper ring contacts with pull rod shaft, and the lubricant oil that the pull rod shaft to-and-fro motion can be taken out of scrapes.
It is trapezoidal that the cross section of scraper ring and spacer is arranged to work in coordination, and an end of gland is the conical surface, and an end is the plane, and the conical surface of gland is corresponding with adjacent scraper ring, is convenient to scraper ring and is out of shape because of extruding.
A plurality of oilholes of scraping are set on the scraper ring, a plurality of oil leaking holes are set on the spacer, can make lubricant oil that pull rod shaft takes out of by scraping oilhole or oil leaking hole is fallen in the pressure cap.
Box body wall is provided with the return port that is communicated to pressure cap inside, and the lubricant oil that pull rod shaft is taken out of is back to box house, has avoided oil leak, has reached the reusable purpose of lubricant oil, has saved cost.
The box body wall in the slip copper sheathing outside is provided with the return port II, on the box body wall in the pressure cap outside return port I that is communicated to pressure cap inside by reflow pipe is set, the return port I is communicated to pressure cap away from an end of box body wall by reflow pipe, make the lubricant oil at pressure cap two ends can both in time pass back into casing, can improve back-flow velocity.
The adjustment swivel nut that pressure cap is threaded with pressure cap away from an end setting of box body wall, can make scraper ring by polytetrafluoroethylmaterial material by turning the extruding of adjustment swivel nut, with the radial clearance that reduces to cause because of friction between scraper ring and the pull rod shaft, recover the functional oil of scraping of scraper ring.
Pressure cap is connected on the box body wall by screw, can be when scraper ring be changed convenient disassembly.
In the annular groove of adjustment swivel nut exterior edge face outside framework oil seal is set, both can have prevented extraneous dust, impurity etc. enter machine intimate, can also play the effect of sealing, avoid lubricant oil to flow out the GD wrapping machine.
Description of drawings
Fig. 1 is the structural representation of background technique;
Fig. 2 is structural representation of the present utility model.
Wherein, 1, pull rod shaft, 2, the slip copper sheathing, 3, screw, 4, pressure cap, 5, scraper ring, 6, spacer, 7, gland, 8, adjust swivel nut, 9, the return port I, 10, reflow pipe, 11, box body wall, 12, the return port II, 13, outside framework oil seal, 14, seal ring, 15, sliding sleeve.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further details:
The pull rod shaft seal arrangement as shown in Figure 2, comprises box body wall 11, slip copper sheathing 2 and pull rod shaft 1.Pull rod shaft 1 is located in the box body wall 11, between box body wall 11 and the pull rod shaft 1 slip copper sheathing 2 is set, and slip copper sheathing 2 is hierarchic structure, and the big end of slip copper sheathing 2 is positioned at the outside of box body wall 11, and slip copper sheathing 2 is installed in the box body wall 11 by the platform circle of small end.Be with pressure cap 4 on the pull rod shaft 1 in box body wall 11 outsides.
Pressure cap 4 comprises flange and cap body two-part, flange end is connected with box body wall 11 by screw 3, the cap body arranges the through hole of suit pull rod shaft 1 away from the end face of box body wall 11, cap body inside arranges diameter greater than the endoporus of pull rod shaft 1, some scraper rings 5 that are sleeved on the pull rod shaft 1 are set in the endoporus, scraper ring 5 is made by teflon, between the adjacent scraper ring 5 spacer 6 is set, and spacer 6 is made by nylon.It is trapezoidal that the cross section of scraper ring 5 and spacer 6 is arranged to work in coordination, and namely the both is the ring structure of similar taper.The big end of scraper ring 5 contacts with pull rod shaft 1, and a plurality of oilholes of scraping are set on the scraper ring 5, is distributed on the excircle of scraper ring 5; A plurality of oil leaking holes are set on the spacer 6, are distributed on the excircle of spacer 6.
Between slip copper sheathing 2 and the adjacent scraper ring 5, pressure cap 4 is away between an end of box body wall 11 and the scraper ring 5 gland 7 being set, gland 7 is made by nylon, one end of gland 7 is the conical surface, corresponding with adjacent scraper ring 5, be used for jam-packed scraper ring 5 and spacer 6, the other end is the plane, respectively the large end face of corresponding slip copper sheathing 2 and the interior hole end surface of pressure cap 4.
Arrange between the through hole of pressure cap 4 suit pull rod shaft 1 and the pull rod shaft 1 and adjust swivel nut 8, adjust swivel nut 8 and pressure cap 4 by being threaded, adjust swivel nut 8 with gland 7, scraper ring 5 and spacer 6 jam-packeds on slip copper sheathing 2, adjustment swivel nut 8 is made by nylon.Offer the annular groove around pull rod shaft 1 on the exterior edge face of adjustment swivel nut 8, outside framework oil seal 13 is set in the annular groove, outside framework oil seal 13 is sleeved on the pull rod shaft 1.
The diameter of pressure cap 4 endoporus is greater than the diameter of slip copper sheathing 2 big ends, and the box body wall 11 between pressure cap 4 endoporus and slip copper sheathing 2 Outside diameters is provided with return port II 12, return port II 12 and pressure cap 4 internal communication.On the box body wall 11 in pressure cap 4 outsides return port I 9 is set, return port I 9 is communicated to the inside of pressure cap 4 by reflow pipe 10.
In the present embodiment, scraper ring 5 is provided with two.
Working procedure of the present utility model is:
Be pulled through in the journey outside pull rod shaft 1, the lubricant oil that box house is splashed on pull rod shaft 1 excircle is taken out of, and the lubricant oil of outflow drips on scraper ring 5 or the spacer 6, drains in the pressure cap 4 through the oil leaking hole of scraping oilhole or spacer 6 of scraper ring 5.Simultaneously, the lubricant oil that is attached on the pull rod shaft 1 is scraped by a plurality of scraper rings 5, flows back to box house with the lubricant oil that flows out through return port, recycles.
When the endoporus of scraper ring 5 and pull rod shaft 1 cylindrical cause excesssive gap because of wearing and tearing, turn and adjust swivel nut 8 extruding glands 7, gland 7 extruding are made scraper ring 5 by polytetrafluoroethylmaterial material, make scraper ring 5 be out of shape to reduce the radial clearance between scraper ring 5 and the pull rod shaft 1, recover the functional oil of scraping of scraper ring 5.
Claims (7)
1. pull rod shaft seal arrangement, comprise box body wall (11) and be located in pull rod shaft (1) in the box body wall (11), the slip copper sheathing (2) that big end is positioned at the hierarchic structure in box body wall (11) outside is set between described box body wall (11) and the pull rod shaft (1), it is characterized in that: be with the pressure cap (4) of fixedlying connected with box body wall (11) on the pull rod shaft (1) in described box body wall (11) outside, described pressure cap (4) inside arranges and somely is looped around scraper ring (5) on the pull rod shaft (1) by what teflon was made, spacer (6) is set, between slip copper sheathing (2) and the adjacent scraper ring (5) between the adjacent scraper ring (5), pressure cap (4) is away between an end of box body wall (11) and the adjacent scraper ring (5) gland (7) being set; Described pressure cap (4) is provided with the adjustment swivel nut (8) on the pull rod shaft (1) of being sleeved on that is threaded with pressure cap (4) away from an end of box body wall (11); Described box body wall (11) is provided with and is communicated to the inner return port of pressure cap (4).
2. pull rod shaft seal arrangement according to claim 1, it is characterized in that: it is trapezoidal that the cross section of described scraper ring (5) and spacer (6) is arranged to work in coordination, the big end of scraper ring (5) contacts with pull rod shaft (1), a plurality of oilholes of scraping are set on the scraper ring (5), and spacer arranges a plurality of oil leaking holes on (6).
3. pull rod shaft seal arrangement according to claim 1 and 2 is characterized in that: an end of described gland (7) is for cooperating the conical surface of scraper ring (5), and the other end is the plane.
4. pull rod shaft seal arrangement according to claim 3, it is characterized in that: described scraper ring (5) is provided with two.
5. pull rod shaft seal arrangement according to claim 1 and 2, it is characterized in that: the diameter of described pressure cap (4) endoporus is greater than the diameter of the big end of slip copper sheathing (2), the box body wall (11) in slip copper sheathing (2) outside is gone up the return port II (12) that is communicated with pressure cap (4) is set, and the box body wall (11) in pressure cap (4) outside is gone up to arrange by reflow pipe (10) and is communicated to the inner return port I (9) of pressure cap (4).
6. pull rod shaft seal arrangement according to claim 5, it is characterized in that: described pressure cap (4) is connected on the box body wall (11) by screw (3).
7. pull rod shaft seal arrangement according to claim 1, it is characterized in that: the annular groove around pull rod shaft (1) is offered in the exterior edge face of described adjustment swivel nut (8), and the outside framework oil seal (13) that is sleeved on the pull rod shaft (1) is set in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156334 CN203131040U (en) | 2013-04-01 | 2013-04-01 | Draw bar shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156334 CN203131040U (en) | 2013-04-01 | 2013-04-01 | Draw bar shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131040U true CN203131040U (en) | 2013-08-14 |
Family
ID=48939020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320156334 Expired - Lifetime CN203131040U (en) | 2013-04-01 | 2013-04-01 | Draw bar shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131040U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990002A (en) * | 2017-12-25 | 2018-05-04 | 中钢集团西安重机有限公司 | A kind of short stress rolling mill pull rod from scale removal sealing device |
| CN109462174A (en) * | 2017-09-06 | 2019-03-12 | 许继集团有限公司 | Translation seal device and breaker, the gas-filling cabinet for using the device |
| CN114776625A (en) * | 2022-06-20 | 2022-07-22 | 中建环能科技股份有限公司 | Sludge pump |
-
2013
- 2013-04-01 CN CN 201320156334 patent/CN203131040U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462174A (en) * | 2017-09-06 | 2019-03-12 | 许继集团有限公司 | Translation seal device and breaker, the gas-filling cabinet for using the device |
| CN109462174B (en) * | 2017-09-06 | 2020-07-28 | 许继集团有限公司 | Direct-acting sealing device and breaker and gas-filled cabinet using same |
| CN107990002A (en) * | 2017-12-25 | 2018-05-04 | 中钢集团西安重机有限公司 | A kind of short stress rolling mill pull rod from scale removal sealing device |
| CN114776625A (en) * | 2022-06-20 | 2022-07-22 | 中建环能科技股份有限公司 | Sludge pump |
| CN114776625B (en) * | 2022-06-20 | 2022-09-06 | 中建环能科技股份有限公司 | Sludge pump |
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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: 20130814 |
|
| CX01 | Expiry of patent term |