CN204921302U - Reciprocating compressor crankcase stay bolt is with sealed nut - Google Patents
Reciprocating compressor crankcase stay bolt is with sealed nut Download PDFInfo
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- CN204921302U CN204921302U CN201520639799.9U CN201520639799U CN204921302U CN 204921302 U CN204921302 U CN 204921302U CN 201520639799 U CN201520639799 U CN 201520639799U CN 204921302 U CN204921302 U CN 204921302U
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- nut
- reciprocating compressor
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- pull bar
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Abstract
The utility model provides a reciprocating compressor crankcase stay bolt is with sealed nut, relates to a sealed nut, is equipped with internal thread B (8) on the inner edge face of cap nut (1) opening one end, is equipped with recess (4) respectively in two bottom surfaces of nut (5), is equipped with sealing washer (2) in two recesses (4) respectively, is equipped with internal thread A (3) on the inner edge face of nut (5), is equipped with external screw thread (6) respectively at the both ends of pull rod (7), nut (5) and cap nut (1) respectively are two, cup joint respectively at the both ends of pull rod (7) two nuts (5), has cup jointed on pull rod (7) of two nuts (5) outer end two cap nuts (1), the utility model discloses a set up the recess respectively in two bottom surfaces of nut, set up the sealing washer respectively in two recesses, played the purpose that the sealing washer that is equipped with with two bottom surfaces of nut and the stifled stay bolt two of dying of cap nut prevented the oil leak in the reciprocating compressor crankcase.
Description
[technical field]
The utility model relates to a kind of sealing nut, especially relates to a kind of reciprocating compressor crankshaft case stay-bolt sealing nut.
[background technique]
Reciprocal compressor belongs to positive displacement compressor, the gas of a constant volume is sequentially sucked and discharges the compressor that enclosed space improves static pressure, often this compressor will be used in petrochemical iy produced enterprise, reciprocal compressor is bent axle drivening rod in use, connecting rod drives piston, piston moves up and down, because piston can produce larger vibration when moving up and down, the vibration that piston produces can make the crankcase of reciprocal compressor vibrate, there is intermittent slight loosening phenomenon in the sealing nut that the vibration that reciprocating compressor crankshaft case produces easily makes reciprocating compressor crankshaft case upper connecting rod bolt two ends be provided with in long-term operation process, the loosening oil leak easily caused in reciprocating compressor crankshaft case of sealing nut, thus cause site environment to pollute.
[summary of the invention]
In order to overcome the deficiency in background technique, the utility model discloses a kind of reciprocating compressor crankshaft case stay-bolt sealing nut, by two bottom surfaces at nut, groove is set respectively, in two grooves, seal ring is set respectively, utilize the outer wall of each one side contact reciprocating compressor crankshaft case being socketed in two nuts at pull bar two ends, and screw at pull bar two ends with two cap nuts, two cap nuts are fitted the other one side of two nuts closely, the vibration produced when reciprocating compressor crankshaft case works like this is absorbed by seal ring, be not easy to make cap nut and nut produce displacement, serve the seal ring that is provided with two bottom surfaces of nut and cap nut blocks the object that stay-bolt two prevents the oil leak in reciprocating compressor crankshaft case.
In order to realize described goal of the invention, the utility model adopts following technological scheme:
A kind of reciprocating compressor crankshaft case stay-bolt sealing nut, comprise cap nut, seal ring, nut and pull bar, the inner edge surface of cap nut open at one end is provided with internal thread B, groove is respectively equipped with in two bottom surfaces of nut, seal ring is respectively equipped with in two grooves, the inner edge surface of nut is provided with internal thread A, outside thread is respectively equipped with at the two ends of pull bar, described nut and cap nut are respectively two, described two nuts are socketed in the two ends of pull bar respectively, and the pull bar of two nut outer ends is socketed with two cap nuts.
Described reciprocating compressor crankshaft case stay-bolt sealing nut, described internal thread A and outside thread are the structure that matches, and described internal thread B and outside thread are the structure that matches.
Owing to have employed technique scheme, the utility model has following beneficial effect:
Reciprocating compressor crankshaft case stay-bolt sealing nut described in the utility model, by two bottom surfaces at nut, groove is set respectively, in two grooves, seal ring is set respectively, utilize the outer wall of each one side contact reciprocating compressor crankshaft case being socketed in two nuts at pull bar two ends, and screw at pull bar two ends with two cap nuts, two cap nuts are fitted the other one side of two nuts closely, the vibration produced when reciprocating compressor crankshaft case works like this is absorbed by seal ring, be not easy to make cap nut and nut produce displacement, serve the seal ring that is provided with two bottom surfaces of nut and cap nut blocks the object that stay-bolt two prevents the oil leak in reciprocating compressor crankshaft case, the utility model has that structure is simple, practical, intention is unique, can extension device working life etc. feature.
[accompanying drawing explanation]
Fig. 1 is assembly structure schematic diagram of the present utility model.
In figure: 1, cap nut; 2, seal ring; 3, internal thread A; 4, groove; 5, nut; 6, outside thread; 7, pull bar; 8, internal thread B.
[embodiment]
Can explain the utility model in more detail by the following examples, the utility model is not limited to the following examples, and open the purpose of this utility model is intended to protect all changes and improvements within the scope of the utility model;
Reciprocating compressor crankshaft case stay-bolt sealing nut by reference to the accompanying drawings described in 1, comprise cap nut 1, seal ring 2, nut 5 and pull bar 7, the inner edge surface of cap nut 1 open at one end is provided with internal thread B8, groove 4 is respectively equipped with in two bottom surfaces of nut 5, seal ring 2 is respectively equipped with in two grooves 4, the inner edge surface of nut 5 is provided with internal thread A3, outside thread 6 is respectively equipped with at the two ends of pull bar 7, described nut 5 and cap nut 1 are respectively two, described two nuts 5 are socketed in the two ends of pull bar 7 respectively, the pull bar 7 of two nut 5 outer ends is socketed with two cap nuts 1, described internal thread A3 and outside thread 6 are the structure that matches, described internal thread B8 and outside thread 6 are the structure that matches.
Implement reciprocating compressor crankshaft case stay-bolt sealing nut described in the utility model, by pull bar 7 through after reciprocating compressor crankshaft case, the two ends of pull bar 7 are exposed at reciprocating compressor crankshaft case outside, four seal rings 2 are arranged on respectively in groove 4 that two nuts 5 arrange respectively, two nuts 5 installing seal ring 2 are screwed in respectively the two ends of pull bar 7, the each one side making two nuts 5 respectively with the outer wall close contact of reciprocating compressor crankshaft case, the pull bar 7 of two nut 5 outer ends is socketed two cap nuts 1, make each other one side respectively with two cap nut 1 close contact of two nuts 5, the displacement produced when reciprocating compressor crankshaft case works is unlikely to that cap nut 1 and nut 5 are produced and loosens, effectively prevent the leakage of the lubricant oil in reciprocating compressor crankshaft case.
The non-detailed portion of the utility model is prior art.
Claims (2)
1. a reciprocating compressor crankshaft case stay-bolt sealing nut, comprise cap nut (1), seal ring (2), nut (5) and pull bar (7), it is characterized in that: on the inner edge surface of cap nut (1) open at one end, be provided with internal thread B(8), groove (4) is respectively equipped with in two bottom surfaces of nut (5), seal ring (2) is respectively equipped with in two grooves (4), the inner edge surface of nut (5) is provided with internal thread A(3), outside thread (6) is respectively equipped with at the two ends of pull bar (7), described nut (5) and cap nut (1) are respectively two, described two nuts (5) are socketed in the two ends of pull bar (7) respectively, the pull bar (7) of two nuts (5) outer end is socketed with two cap nuts (1).
2. reciprocating compressor crankshaft case stay-bolt sealing nut according to claim 1, is characterized in that: described internal thread A(3) with outside thread (6) be the structure that matches, described internal thread B(8) with outside thread (6) be the structure that matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639799.9U CN204921302U (en) | 2015-08-24 | 2015-08-24 | Reciprocating compressor crankcase stay bolt is with sealed nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520639799.9U CN204921302U (en) | 2015-08-24 | 2015-08-24 | Reciprocating compressor crankcase stay bolt is with sealed nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921302U true CN204921302U (en) | 2015-12-30 |
Family
ID=54970436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520639799.9U Active CN204921302U (en) | 2015-08-24 | 2015-08-24 | Reciprocating compressor crankcase stay bolt is with sealed nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757096A (en) * | 2016-03-31 | 2016-07-13 | 南通康达鑫电子有限公司 | Lock nut |
-
2015
- 2015-08-24 CN CN201520639799.9U patent/CN204921302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757096A (en) * | 2016-03-31 | 2016-07-13 | 南通康达鑫电子有限公司 | Lock nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |