CN204113586U - A kind of single cylinder is without oily piston compression device - Google Patents
A kind of single cylinder is without oily piston compression device Download PDFInfo
- Publication number
- CN204113586U CN204113586U CN201420526965.XU CN201420526965U CN204113586U CN 204113586 U CN204113586 U CN 204113586U CN 201420526965 U CN201420526965 U CN 201420526965U CN 204113586 U CN204113586 U CN 204113586U
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- piston
- compression device
- crankcase
- single cylinder
- oily
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Abstract
The utility model discloses a kind of single cylinder without oily piston compression device, comprise crankcase, described crankcase is provided with a piston apparatus, described piston apparatus is made up of the piston assembly be connected, cylinder, valve plate and cylinder cap, it is characterized in that described piston outer periphery face is provided with 2 groups of guide rings coaxially arranged, 2 groups of described guide rings are separately positioned on the both sides of piston pin axis.This single cylinder is without in oily piston compression device, 2 groups of guide rings effectively ensure that piston can do fore and aft motion at axial direction, not easily produce and rock, life-span when substantially increasing the stability of piston and use, effectively alleviate the friction of piston cup simultaneously, improve the working life of piston cup; Also further enhancing the sealability of piston assembly.
Description
Technical field
The utility model relates to compression set, and more particularly, it relates to a kind of single cylinder without oily piston compression device.
Background technique
Oilless compressor, as the air-source that can provide clean air, has market widely at medical treatment, food, chemical industry etc. to air quality requirements high request industry.At present, without oily piston compressor many employings composite as piston ring.This structure with have oily piston structure similar, just the material of piston ring is made into without can the material of selflubricating under oil condition, motive position increase self oiling bearing between connecting rod and wrist pin; Although this structure can realize without oil pressure contracting, sealing effect is poor, efficiency is low, and after working long hours, due to the wearing and tearing of piston ring, efficiency reduces obviously.The fork oilless compressor of another structure, is made of one connecting rod and piston, adopts cup packing, eliminates bearing simultaneously, seal during work by the tension force of leather cup.Although this structure improves sealing effect, because leather cup is in oscillating traverse motion state for a long time, very easily weares and teares and break, the life-span is very short.Due to the existence of these problems, constrain applying of oilless compressor.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of single cylinder without oily piston compression device, and it is stable, reliable, long service life.
For achieving the above object, the utility model provides following technological scheme: a kind of single cylinder is without oily piston compression device, comprise crankcase, described crankcase is provided with a piston apparatus, described piston apparatus is by the piston assembly be connected, cylinder, valve plate and cylinder cap composition, crankcase substantially horizontal is fixed with bearing support, 2 bearings coaxially arranged are provided with in bearing support, bent axle is fixedly connected with bearing support by 2 bearings, described piston assembly comprises piston, connecting rod, wrist pin, piston cup, leather cup gland, described piston cup is fixed on piston by leather cup gland, described connecting rod one end is connected with piston by wrist pin, the other end is connected with the eccentric shaft turns on bent axle, described piston outer periphery face is provided with 2 groups of guide rings coaxially arranged, 2 groups of described guide rings are separately positioned on the both sides of piston pin axis.
As concrete scheme of the present utility model, described bent axle one end is provided with belt pulley.
Further, the other end of described bent axle opposed belts dish is fixed with fan blade, and described fan blade is positioned at crankcase, and crankcase is provided with some intake grills relative to the sidewall of fan blade.
Preferably, one end of described connecting rod is provided with needle bearing, is rotationally connected by needle bearing and wrist pin; The other end of connecting rod is provided with self oiling bearing, is connected with the eccentric rotary of bent axle by self oiling bearing.
Preferably, described guide ring is made up of self lubricating material.
Compared with prior art, the beneficial effects of the utility model are: this single cylinder is without in oily piston compression device, 2 groups of guide rings effectively ensure that piston can do fore and aft motion at axial direction, not easily produce and rock, life-span when substantially increasing the stability of piston and use, effectively alleviate the friction of piston cup simultaneously, improve the working life of piston cup; Also further enhancing the sealability of piston assembly.
Accompanying drawing explanation
Fig. 1 is the erection drawing of the utility model single cylinder without oily piston compression device embodiment;
Fig. 2 is the structural representation of the utility model piston assembly;
The sectional view of A-A in Fig. 3 Fig. 2.
Reference character: cylinder 1; Crankcase 2; Bearing support 3; Bearing 31; Bent axle 4; Belt pulley 5; Fan blade 6; Valve plate 7; Cylinder cap 8; Piston assembly 100; Connecting rod 101; Self oiling bearing 102; Needle bearing 103; Oil sealing 104; Piston 105; Wrist pin 106; Guide ring 107; Piston cup 108; Leather cup gland 109.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model single cylinder is described further without oily piston compression device embodiment.
A kind of single cylinder is without oily piston compression device, comprise crankcase 2, crankcase 2 top is provided with a set of piston apparatus, piston apparatus is made up of the piston assembly 100 be connected, cylinder 1, valve plate 7 and cylinder cap 8, and crankcase 2 substantially horizontal is fixedly equipped with bearing support 3, is provided with two bearings 31 in bearing support 3, bent axle 4 is constrained in bearing support 3, can only do the rotary motion of circumference, be connected with belt pulley 5 outside bent axle 4, inner side is connected with fan blade 6; When external force drives belt pulley 5 to rotate, bent axle 4 and fan blade 6 also can synchronously rotate with belt 5, and fan blade 6 is arranged in guided bend axle box 2, and crankcase 2 has intake grill near fan blade 6 side;
Piston assembly 100 comprises connecting rod 101, piston 105, wrist pin 106, piston cup 108, leather cup gland 109 and two groups of guide rings 107; Piston 105 top is provided with piston cup 108, piston cup 108 is made up of self lubricating material, piston cup 108 is by leather cup gland 109, be fixedly mounted on the top of piston 108,2 groups of guide rings 107 are provided with in the middle part of piston 105, guide ring 107 is made up of self lubricating material, can be polytetrafluoro material, and guide ring 107 can the to-and-fro motion of stable plunger 105 in cylinder 4; Install in piston 105 and arrange wrist pin 106, the outer socket of wrist pin 106 arranges needle bearing 103, and needle bearing 103 both sides arrange oil sealing 104 respectively, by grease sealing in needle bearing 103, and lubrication quill bearing 103 and wrist pin 106; Piston 105 bottom is connected with connecting rod 101 by wrist pin 106, needle bearing 103, connecting rod 101 in wrist pin 106 axis and circumferentially can move freely, connecting rod 101 major part is provided with on self oiling bearing 102, self oiling bearing 102 is arranged on the eccentric shaft 41 of bent axle 4, the eccentric shaft 41 of the stub end of piston assembly 100 and bent axle 4 is connected together, can moves in a circle with the eccentric shaft 41 of bent axle 4; Piston assembly 100 upper half part is arranged in cylinder 1, and piston 105 axially can only move reciprocatingly along cylinder 1.
When bent axle 4 rotary motion, eccentric shaft 41 drivening rod 101 driven plunger 105 moves reciprocatingly in cylinder 1, guide ring 107 plays effect of contraction, bent axle 4 is completed by self oiling bearing 102 with the relative movement of connecting rod 101, rolling pendulum motion between connecting rod 101 and wrist pin 106 is completed by needle bearing 103, reciprocating friction between piston 105 and cylinder 1 is lubricated by the piston cup 108 of selflubricating and guide ring 107, piston 105 does the to-and-fro motion not needing lubricant oil in cylinder 1, achieves the air-breathing needed for compression and exhaust process; Piston cup 108 operationally because gas pressure opens, is close to cylinder, effectively reduces leakage; Fan blade 6 rotates the air-flow formed and is directed to cylinder 1, forces cooling cylinder 1 and piston assembly 100, effectively reduces the operating temperature of cylinder 1 and piston assembly 100, improve compression efficiency.
The utility model is compared with oilless compressor of the same type, 2 groups of guide rings 107 effectively ensure that piston 105 can do fore and aft motion at axial direction, not easily produce and rock, life-span when substantially increasing the stability of piston 105 and use, effectively alleviate the friction of piston cup 108 simultaneously, improve the working life of piston cup 108; Also further enhancing the sealability of piston assembly 100; Its structure is simple, reliable, and cost is low, and leak low, stability is high, and can obtain higher delivery pressure, and service life of a machine and working efficiency also significantly improve; And using belt transmission by belt pulley 5, its operation is more stable, indirectly improves working life.
Claims (5)
1. a single cylinder is without oily piston compression device, comprise crankcase, described crankcase is provided with a piston apparatus, described piston apparatus is by the piston assembly be connected, cylinder, valve plate and cylinder cap composition, crankcase substantially horizontal is fixed with bearing support, 2 bearings coaxially arranged are provided with in bearing support, bent axle is fixedly connected with bearing support by 2 bearings, described piston assembly comprises piston, connecting rod, wrist pin, piston cup, leather cup gland, described piston cup is fixed on piston by leather cup gland, described connecting rod one end is connected with piston by wrist pin, the other end is connected with the eccentric shaft turns on bent axle, it is characterized in that: described piston outer periphery face is provided with 2 groups of guide rings coaxially arranged, 2 groups of described guide rings are separately positioned on the both sides of piston pin axis.
2. a kind of single cylinder according to claim 1 is without oily piston compression device, it is characterized in that: described bent axle one end is provided with belt pulley.
3. a kind of single cylinder according to claim 2 is without oily piston compression device, it is characterized in that: the other end of described bent axle opposed belts dish is fixed with fan blade, and described fan blade is positioned at crankcase, and crankcase is provided with some intake grills relative to the sidewall of fan blade.
4. a kind of single cylinder according to claim 1 is without oily piston compression device, it is characterized in that: one end of described connecting rod is provided with needle bearing, is rotationally connected by needle bearing and wrist pin; The other end of connecting rod is provided with self oiling bearing, is connected with the eccentric rotary of bent axle by self oiling bearing.
5. a kind of single cylinder according to claim 1 is without oily piston compression device, it is characterized in that: described guide ring is made up of self lubricating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526965.XU CN204113586U (en) | 2014-09-13 | 2014-09-13 | A kind of single cylinder is without oily piston compression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526965.XU CN204113586U (en) | 2014-09-13 | 2014-09-13 | A kind of single cylinder is without oily piston compression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113586U true CN204113586U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420526965.XU Active CN204113586U (en) | 2014-09-13 | 2014-09-13 | A kind of single cylinder is without oily piston compression device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204113586U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017140188A1 (en) * | 2016-02-16 | 2017-08-24 | 梁国富 | Oil-free high-pressure plunger pump |
| CN110500369A (en) * | 2019-06-21 | 2019-11-26 | 刘蕴星 | Reciprocating motion type is without sealing ring piston hydraulic pressure brake apparatus |
-
2014
- 2014-09-13 CN CN201420526965.XU patent/CN204113586U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017140188A1 (en) * | 2016-02-16 | 2017-08-24 | 梁国富 | Oil-free high-pressure plunger pump |
| CN110500369A (en) * | 2019-06-21 | 2019-11-26 | 刘蕴星 | Reciprocating motion type is without sealing ring piston hydraulic pressure brake apparatus |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |