CN215292814U - Crankshaft of oil-free compressor - Google Patents
Crankshaft of oil-free compressor Download PDFInfo
- Publication number
- CN215292814U CN215292814U CN202121687268.9U CN202121687268U CN215292814U CN 215292814 U CN215292814 U CN 215292814U CN 202121687268 U CN202121687268 U CN 202121687268U CN 215292814 U CN215292814 U CN 215292814U
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- China
- Prior art keywords
- crank
- grease
- oil
- rod
- free compressor
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- 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 - Fee Related
Links
- 239000004519 grease Substances 0.000 claims abstract description 88
- 230000001050 lubricating effect Effects 0.000 claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000005461 lubrication Methods 0.000 claims description 6
- 244000309464 bull Species 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 5
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
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- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses an oil-free compressor bent axle, include: one end of the connecting rod is fixedly connected with a transmission gear, and the middle part of the connecting rod is fixedly provided with a first crank; the oil rotating shaft bin is connected to one end of the first crank, and the other end of the oil rotating shaft bin is connected with a second crank; the slow release hole is formed in the outer surface of the grease rotating shaft bin; the connecting ring is sleeved outside the grease rotating shaft bin, and a rotating rod is fixed at one end of the connecting ring; and the connecting seat is fixed on the top end surface of the rotating rod. This oil-free compressor bent axle is provided with grease pivot storehouse, and its intussuseption is filled with lubricating grease, and the go-between when the outside rotation in grease pivot storehouse, the laminating department in the internal surface of the lubricated go-between that lubricating grease can be better and grease pivot storehouse, and grease pivot storehouse can accomplish through dismantling first crank and change or add, and is simple and convenient, saves manual work and material cost, extension equipment life.
Description
Technical Field
The utility model relates to an oil free compressor technical field specifically is an oil free compressor bent axle.
Background
An oil-free compressor refers to a compressor that does not use lubricating oil in the compressor cylinder. The crankcase of the oil-free compressor is of a dry structure, and the large and small holes of the connecting rod and the front and rear main bearings of the crankshaft of the oil-free compressor generally adopt grease-containing ball bearings with double-port seals. Since no lubricating oil is in contact with the compressed air source during operation, the discharged gas is absolutely free of oil gas, and is very popular with users. However, the grease sealed in the bearing is vaporized and oxidatively decomposed by a temperature rise during a long-term operation, and a thickener in the grease is also deteriorated to lose its thickening effect. Due to the change of the grease performance, the use effect is reduced sharply, and if new oil is not added in time, the bearing and even the machine can be damaged directly.
Lubricating grease passes through spherical bearing release in use for the oil-free compressor bent axle on the market, but spherical bearing release lubricating grease back because spherical bearing turned angle is unset, and the two-way fixed knot of spherical bearing structure leads to lubricating grease's release comparatively unstable, and is difficult for changing lubricating grease, adds lubricating grease and need dismantle overall structure, and the operation is comparatively inconvenient, and the cost is higher, for this reason, we propose an oil-free compressor bent axle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil-free compressor bent axle to the oil-free compressor bent axle in use lubricating grease on the market that proposes in solving above-mentioned background art passes through spherical bearing release, but behind the spherical bearing release lubricating grease, because spherical bearing turned angle is unset, and the two-way fixed knot of spherical bearing structure leads to the release of lubricating grease comparatively unstable, and is difficult for changing lubricating grease, add lubricating grease and need dismantle overall structure, it is comparatively inconvenient to operate, the higher problem of cost.
In order to achieve the above object, the utility model provides a following technical scheme: an oil-free compressor crankshaft comprising:
one end of the connecting rod is fixedly connected with a transmission gear, and the middle part of the connecting rod is fixedly provided with a first crank;
the oil rotating shaft bin is connected to one end of the first crank, and the other end of the oil rotating shaft bin is connected with a second crank;
the slow release hole is formed in the outer surface of the grease rotating shaft bin;
the connecting ring is sleeved outside the grease rotating shaft bin, and a rotating rod is fixed at one end of the connecting ring;
the connecting seat is fixed on the top end surface of the rotating rod, and a connecting hole is formed in the connecting seat;
the piston cap is connected to one end of the rotating rod, and a piston groove is formed in the piston cap;
the piston hole is formed in the outer surface of the piston cap, and a fixing rod penetrates through the piston hole.
Preferably, a rotating structure is formed between the connecting rod and the transmission gear, and the central axis positions of the transmission gear and the connecting rod are overlapped.
Preferably, the first crank and the second crank are parallel to each other, the external dimensions of the first crank and the second crank are matched, and the first crank and the second crank are uniformly distributed along the outer part of the connecting rod at equal intervals.
Preferably, first crank passes through to constitute revolution mechanic between grease pivot storehouse and the second crank, and the structure in grease pivot storehouse is hollow structure to be connected for dismantling between grease pivot storehouse and the first crank.
Preferably, a rotating structure is formed between the connecting ring and the grease rotating shaft bin, the slow release hole penetrates through the outer surface of the grease rotating shaft bin, and the grease rotating shaft bin is tightly attached to the connecting ring.
Preferably, the piston cap passes through the connecting seat and constitutes revolution mechanic between dead lever and the bull stick, and the connecting hole runs through in the inside of connecting seat to the aperture size of connecting hole is identical with the aperture size in piston hole, and the diameter size in dead lever is identical with the diameter size in piston hole simultaneously.
Preferably, the fixing rod is further provided with:
and the auxiliary lubricating groove is arranged on the outer surface of the fixing rod.
Preferably, the auxiliary lubricating groove penetrates through the outer surface of the fixing rod, the structure of the auxiliary lubricating groove is a groove-shaped structure, and the length of the auxiliary lubricating groove is matched with the diameter of the piston cap.
Compared with the prior art, the beneficial effects of the utility model are that: this oil-free compressor bent axle is provided with grease pivot storehouse, and its intussuseption is filled with lubricating grease, and the go-between when the outside rotation in grease pivot storehouse, the laminating department in the internal surface of the lubricated go-between that lubricating grease can be better and grease pivot storehouse, and grease pivot storehouse can accomplish through dismantling first crank and change or add, and is simple and convenient, saves manual work and material cost, extension equipment life.
The slow release hole is used for releasing lubricating grease inside the grease rotating shaft bin, the grease is released more stably due to the hole structure, excessive or insufficient one-time release of the lubricating grease is avoided, and material loss is reduced; the auxiliary lubrication groove that sets up can make some lubricating grease of evaporation condense in the grease pivot storehouse in auxiliary lubrication groove, and the dead lever is lower with the bull stick temperature of continuous rotational friction in the piston cap that outside and high-pressure gas contacted, and the lubricating grease of evaporation can condense more in the lower auxiliary lubrication groove of temperature to reduce the lubricating grease that escapes to the outside because of the evaporation.
The piston cap is connected with a connecting hole on a connecting seat at the upper end of the rotating rod through a fixed rod and a piston hole, and the rotating rod rotates in the piston groove, so that the piston cap rotates through a first crank and a second crank of the rotating rod when moving up and down, the connecting rod rotates, and power is output; the arranged transmission gear is meshed and connected with the compressor transmission structure through rigid connection, and compared with a transmission belt type transmission connection mode, the transmission gear is tighter, the power transmission loss is smaller, and the power output is more stable; the first crank and the second crank that set up on the connecting rod according to the quantity of pneumatic cylinder, make first crank and second crank according to actual power demand and compressor molding and set up, and the design of first crank and the two flywheels of second crank makes can not take place to rock when rotating for the compressor can not send abnormal sound or vibrations at the during operation, avoids equipment to damage.
Drawings
FIG. 1 is a schematic view of the working state of the present invention showing a front perspective structure;
fig. 2 is a schematic perspective view of the first crank and the second crank portion of the present invention;
FIG. 3 is a schematic perspective view of the connection ring of the present invention;
fig. 4 is a schematic view of a sectional three-dimensional structure of the piston cap of the present invention.
In the figure: 1. a connecting rod; 2. a first crank; 3. a second crank; 4. a transmission gear; 5. a grease rotating shaft bin; 6. a connecting ring; 7. a rotating rod; 8. a piston cap; 9. fixing the rod; 10. a slow release hole; 11. a connecting seat; 12. connecting holes; 13. a piston groove; 14. a piston bore; 15. an auxiliary lubrication groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: an oil-free compressor crankshaft comprising: the method comprises the following steps: one end of the connecting rod 1 is fixedly connected with a transmission gear 4, and the middle part of the connecting rod 1 is fixedly provided with a first crank 2; a rotating structure is formed between the connecting rod 1 and the transmission gear 4, and the transmission gear 4 is superposed with the central axis of the connecting rod 1; the transmission gear 4 is meshed and connected with the compressor transmission structure through rigid connection, and compared with a transmission belt type transmission connection mode, the transmission gear is tighter, the power transmission loss is smaller, and the power output is more stable; the first crank 2 and the second crank 3 are parallel to each other, the external dimensions of the first crank 2 and the second crank 3 are matched, and the first crank 2 and the second crank 3 are uniformly distributed along the outer part of the connecting rod 1 at equal intervals; the arranged first crank 2 and the second crank 3 are arranged on the connecting rod 1 according to the number of the pneumatic cylinders, so that the first crank 2 and the second crank 3 are arranged according to the actual power requirement and the shape of the compressor, and the double flywheel design of the first crank 2 and the second crank 3 ensures that the compressor does not shake during rotation, so that the compressor does not make abnormal sound or shake during working, and equipment damage is avoided; the grease rotating shaft bin 5 is connected to one end of the first crank 2, and the other end of the grease rotating shaft bin 5 is connected with the second crank 3; the slow release hole 10 is formed in the outer surface of the grease rotating shaft bin 5; the first crank 2 and the second crank 3 form a rotating structure through the grease rotating shaft bin 5, the grease rotating shaft bin 5 is of a hollow structure, and the grease rotating shaft bin 5 is detachably connected with the first crank 2; the packing of the grease pivot storehouse 5 that sets up is filled with lubricating grease, and go-between 6 is when 5 outside rotations in grease pivot storehouse, and the laminating department of the internal surface of the lubricated go-between 6 that lubricating grease can be better and grease pivot storehouse 5, and grease pivot storehouse 5 can accomplish through dismantling first crank 2 and change or add, and is simple and convenient, saves manual work and material cost, extension equipment life.
Referring to fig. 3, the present invention provides a technical solution: an oil-free compressor crankshaft comprising: the connecting ring 6 is sleeved outside the grease rotating shaft bin 5 in a sleeved mode, and a rotating rod 7 is fixed at one end of the connecting ring 6; a rotating structure is formed between the connecting ring 6 and the grease rotating shaft bin 5, the slow release hole 10 penetrates through the outer surface of the grease rotating shaft bin 5, and the grease rotating shaft bin 5 is tightly attached to the connecting ring 6; the slow release hole 10 is used for releasing lubricating grease inside the grease rotating shaft bin 5, the grease is released more stably due to the hole structure, excessive or insufficient once-releasing of the lubricating grease is avoided, and material loss is reduced; and a connecting seat 11 fixed on the top end surface of the rotating rod 7, wherein a connecting hole 12 is formed inside the connecting seat 11.
Referring to fig. 4, the present invention provides a technical solution: an oil-free compressor crankshaft comprising: a piston cap 8 connected to one end of the rotating rod 7, wherein a piston groove 13 is formed in the piston cap 8; a piston hole 14 formed on the outer surface of the piston cap 8, wherein a fixing rod 9 penetrates through the piston hole 14; the piston cap 8 forms a rotating structure through the connecting seat 11 and the fixed rod 9 and the rotating rod 7, the connecting hole 12 penetrates through the connecting seat 11, the aperture size of the connecting hole 12 is matched with that of the piston hole 14, and the diameter size of the fixed rod 9 is matched with that of the piston hole 14; the arranged piston cap 8 is connected with a connecting hole 12 on a connecting seat 11 at the upper end of the rotating rod 7 through a fixed rod 9 and a piston hole 14, and the rotating rod 7 rotates in a piston groove 13, so that the piston cap 8 rotates through a first crank 2 and a second crank 3 of the rotating rod 7 when moving up and down, and the connecting rod 1 rotates to output power; an auxiliary lubrication groove 15 provided on an outer surface of the fixing lever 9; the auxiliary lubricating groove 15 penetrates through the outer surface of the fixing rod 9, the structure of the auxiliary lubricating groove 15 is a groove-shaped structure, and the length of the auxiliary lubricating groove 15 is matched with the diameter of the piston cap 8; the auxiliary lubricating groove 15 that sets up can make some lubricating grease that evaporates in the grease pivot storehouse 5 condense in auxiliary lubricating groove 15, and the dead lever 9 is lower than the piston cap 8 that outside and high-pressure gas contacted and the bull stick 7 temperature of lasting rotational friction, and the lubricating grease of evaporation can condense more in the auxiliary lubricating groove 15 that the temperature is lower to reduce the lubricating grease that escapes to the outside because of the evaporation.
The working principle is as follows: for the oil-free compressor crankshaft, firstly, the connecting rod 1 is connected with a compressor transmission structure through the transmission gear 4, so that kinetic energy generated by rotation of the crankshaft is transmitted, the first crank 2 is connected with the second crank 3 through the grease rotating shaft bin 5, lubricating grease is stored in the grease rotating shaft bin 5 and is released through the slow release hole 10 along with the rotation of the connecting ring 6 outside the grease rotating shaft bin 5, the connecting ring 6 is tightly connected with the grease rotating shaft bin 5, the self-evaporation and the oxidative decomposition of the lubricating grease are reduced, the service time of the internal lubricating grease is prolonged, the adding frequency of the lubricating grease is reduced, then, the connecting ring 6 is connected with the piston cap 8 through the fixing rod 9 through the rotating rod 7 fixed at one end, the fixing rod 9 penetrates through the piston hole 14 formed in the piston cap 8 and the connecting hole 12 on the connecting seat 11 at the top end of the fixing rod 9, so that the piston cap 8 and the rotating rod 7 can rotate, and the connecting seat 11 on the top end of the fixing rod 9 can not touch the inner wall of the piston groove 13 when rotating, and the auxiliary lubricating groove 15 formed in the surface of the fixing rod 9 can condense evaporated lubricating grease, so that the addition of the lubricating grease is reduced, and the evaporated lubricating grease and compressed gas are prevented from being doped.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An oil-free compressor crankshaft, comprising:
the device comprises a connecting rod (1), wherein one end of the connecting rod (1) is fixedly connected with a transmission gear (4), and the middle part of the connecting rod (1) is fixedly provided with a first crank (2);
the oil rotating shaft bin (5) is connected to one end of the first crank (2), and the other end of the oil rotating shaft bin (5) is connected with the second crank (3);
the slow release hole (10) is formed in the outer surface of the grease rotating shaft bin (5);
the connecting ring (6) is sleeved outside the grease rotating shaft bin (5) in a sleeved mode, and a rotating rod (7) is fixed at one end of the connecting ring (6);
the connecting seat (11) is fixed on the top end surface of the rotating rod (7), and a connecting hole (12) is formed in the connecting seat (11);
the piston cap (8) is connected to one end of the rotating rod (7), and a piston groove (13) is formed in the piston cap (8);
and the piston hole (14) is formed in the outer surface of the piston cap (8), and a fixing rod (9) penetrates through the piston hole (14).
2. An oil-free compressor crankshaft as claimed in claim 1, wherein: a rotating structure is formed between the connecting rod (1) and the transmission gear (4), and the positions of the central axes of the transmission gear (4) and the connecting rod (1) are overlapped.
3. An oil-free compressor crankshaft as claimed in claim 1, wherein: the first crank (2) and the second crank (3) are parallel to each other, the external dimensions of the first crank (2) and the second crank (3) are identical, and the first crank (2) and the second crank (3) are uniformly distributed along the outer part of the connecting rod (1) at equal intervals.
4. An oil-free compressor crankshaft as claimed in claim 1, wherein: first crank (2) pass through to constitute rotating-structure between grease pivot storehouse (5) and second crank (3), and the structure in grease pivot storehouse (5) is hollow structure to be connected for dismantling between grease pivot storehouse (5) and first crank (2).
5. An oil-free compressor crankshaft as claimed in claim 1, wherein: constitute revolution mechanic between go-between (6) and grease pivot storehouse (5), and slowly-releasing hole (10) run through in the surface in grease pivot storehouse (5) to closely laminate between grease pivot storehouse (5) and go-between (6).
6. An oil-free compressor crankshaft as claimed in claim 1, wherein: piston cap (8) pass through and constitute rotating-structure between connecting seat (11) and dead lever (9) and bull stick (7), and connecting hole (12) run through in the inside of connecting seat (11), and the aperture size of connecting hole (12) is identical with the aperture size of piston hole (14), and the diameter size of dead lever (9) is identical with the diameter size of piston hole (14) simultaneously.
7. An oil-free compressor crankshaft as claimed in claim 1, wherein: the fixing rod (9) is further provided with:
an auxiliary lubrication groove (15) provided on an outer surface of the fixing rod (9).
8. An oil-free compressor crankshaft as claimed in claim 7, wherein: the auxiliary lubricating groove (15) penetrates through the outer surface of the fixing rod (9), the structure of the auxiliary lubricating groove (15) is a groove-shaped structure, and the length of the auxiliary lubricating groove (15) is matched with the diameter of the piston cap (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121687268.9U CN215292814U (en) | 2021-07-23 | 2021-07-23 | Crankshaft of oil-free compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121687268.9U CN215292814U (en) | 2021-07-23 | 2021-07-23 | Crankshaft of oil-free compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215292814U true CN215292814U (en) | 2021-12-24 |
Family
ID=79524077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121687268.9U Expired - Fee Related CN215292814U (en) | 2021-07-23 | 2021-07-23 | Crankshaft of oil-free compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215292814U (en) |
-
2021
- 2021-07-23 CN CN202121687268.9U patent/CN215292814U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20211224 |