CN205895537U - A crank for air compressor machine - Google Patents
A crank for air compressor machine Download PDFInfo
- Publication number
- CN205895537U CN205895537U CN201620831785.1U CN201620831785U CN205895537U CN 205895537 U CN205895537 U CN 205895537U CN 201620831785 U CN201620831785 U CN 201620831785U CN 205895537 U CN205895537 U CN 205895537U
- Authority
- CN
- China
- Prior art keywords
- crank
- air compressor
- compressor machine
- trunnion
- circle
- 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 - Fee Related
Links
Abstract
The utility model provides a crank for air compressor machine belongs to mechanical technical field. It has solved the unmodifiable problem of crank equilibrium rate of current air compressor machine. Crank body that this a crank for air compressor machine includes the disc with set up the eccentric shaft on crank body terminal surface, the shaft hole has been offered at the middle part of crank body, is provided with balancing weight and trunnion on another terminal surface of crank body, balancing weight through mounting screw on the crank body, the trunnion lies in same axis for the centre of a circle of ring form and trunnion and the centre of a circle in shaft hole. The utility model discloses it is balanced adjustable to have the crank, range of application a crank for air compressor machine extensively.
Description
Technical field
This utility model belongs to field of mechanical technique, is related to a kind of crank, particularly to a kind of crank for air compressor machine.
Background technology
Air compressor machine crank is set on the main shaft of air compressor machine by eccentric pivot hole, and is lock onto on main shaft by holding screw
Fixing, the axle portion of crank is connected with piston rod by bearing, and main axis are thus drive crank to rotate, thus driving piston rod past
Compressed air function is realized in multiple motion.
But now cranked balanced ratio is immutable, in low cruise, excessive crank balance rate makes bearing load
Become big, cause insufficient lubrication, the journal wear aggravation of crank.When high rotating speed runs, crank balance rate deficiency makes air compressor machine
Vibration is big.Therefore, there is low speed bad, the big problem of vibration at high speed of lubrication in existing air compressor machine.
Content of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, there is provided a kind of crank balance is adjustable
The crank for air compressor machine.
The purpose of this utility model can be realized by following technical proposal: a kind of crank for air compressor machine, including circle
The crank body of dish type and the eccentric shaft that is arranged on crank body end face are it is characterised in that the middle part of described crank body
Offer axis hole, the described other end of crank body is provided with counterweight block and trunnion, described counterweight block leads to
Cross screw to be installed in crank body, described trunnion be circular and the center of circle of the center of circle of trunnion and axis hole be located at same
On axis.
Above-mentioned a kind of for, in the crank of air compressor machine, described counterweight block is fan shape, described counterweight block
Outer circle wall is concordant with the outer circle wall of crank body, stays before the inner peripheral wall of described counterweight block and the periphery wall of trunnion
There is gap.
Above-mentioned a kind of in the crank of air compressor machine, the described center of circle of counterweight block, the center of circle of trunnion and partially
The center of circle of heart axle is located along the same line.
Compared with prior art, the crank that this is used for air compressor machine is provided with dismountable counterweight block, when needs adjustment is bent
During the balanced ratio of handle, the counterweight block that only need to change corresponding weight size can be so that its range of application be wider.
Brief description
Fig. 1 is the front perspective view of this crank for air compressor machine.
Fig. 2 is the rear perspective view of this crank for air compressor machine.
In figure, 1, crank body；2nd, eccentric shaft；3rd, axis hole；4th, counterweight block；5th, trunnion；6th, screw.
Specific embodiment
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
As shown in Figure 1 and Figure 2, the crank that this is used for air compressor machine includes discoidal crank body 1 and is arranged at crank body
Eccentric shaft 2 on 1 end face, the middle part of crank body 1 offers axis hole 3, and the other end of crank body 1 is provided with balance weight
Block 4 and trunnion 5, counterweight block 4 is installed in crank body 1 by screw 6, and trunnion 5 is circular and trunnion 5 circle
The heart is located on same axis with the center of circle of axis hole 3.
When the balanced ratio needing to adjust crank, only need to back out the screw 6 between counterweight block 4 and crank body 1, change
The counterweight block 4 of corresponding weight size.
Describe in detail further, this counterweight block 4 being used in the crank of air compressor machine is fan shape, the excircle of counterweight block 4
Wall is concordant with the outer circle wall of crank body 1, leaves gap before the inner peripheral wall of counterweight block 4 and the periphery wall of trunnion 5.
Describe in detail further, this is for the center of circle of counterweight block 4 in the crank of air compressor machine, the center of circle of trunnion 5 and bias
The center of circle of axle 2 is located along the same line.
Specific embodiment described herein is only explanation for example to this utility model spirit.This utility model institute
Belong to those skilled in the art described specific embodiment can be made with various modifications or supplement or using similar
Mode substitute, but without departing from of the present utility model spirit or surmount scope defined in appended claims.
Although more employing crank body 1, eccentric shaft 2, axis hole 3, counterweight block 4, trunnion 5, screw 6 etc. herein
Term, but it is not precluded from the probability using other terms.It is used for the purpose of more easily describing and explaining using these terms
Essence of the present utility model；It is all contrary with this utility model spirit for being construed as any additional restriction.
Claims (3)
1. a kind of crank for air compressor machine, including discoidal crank body (1) be arranged on crank body (1) end face
Eccentric shaft (2) it is characterised in that the middle part of described crank body (1) offers axis hole (3), described crank body (1)
Counterweight block (4) and trunnion (5) are provided with other end, described counterweight block (4) is installed on crank by screw (6)
On body (1), described trunnion (5) is that the circular and center of circle of trunnion (5) is located at same axis with the center of circle of axis hole (3)
On.
2. a kind of crank for air compressor machine according to claim 1 is it is characterised in that described counterweight block (4) is
Fan shape, the outer circle wall of described counterweight block (4) is concordant with the outer circle wall of crank body (1), described counterweight block (4)
Gap is left before inner peripheral wall and the periphery wall of trunnion (5).
3. a kind of crank for air compressor machine according to claim 1 and 2 is it is characterised in that described counterweight block (4)
The center of circle in the center of circle, the center of circle of trunnion (5) and eccentric shaft (2) be located along the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620831785.1U CN205895537U (en) | 2016-08-03 | 2016-08-03 | A crank for air compressor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620831785.1U CN205895537U (en) | 2016-08-03 | 2016-08-03 | A crank for air compressor machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895537U true CN205895537U (en) | 2017-01-18 |
Family
ID=57782933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620831785.1U Expired - Fee Related CN205895537U (en) | 2016-08-03 | 2016-08-03 | A crank for air compressor machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205895537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682416A (en) * | 2020-11-26 | 2021-04-20 | 北京中清能发动机技术有限公司 | Round slide block group, balance bar, round slide block and compressor of crank round slide block mechanism |
-
2016
- 2016-08-03 CN CN201620831785.1U patent/CN205895537U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682416A (en) * | 2020-11-26 | 2021-04-20 | 北京中清能发动机技术有限公司 | Round slide block group, balance bar, round slide block and compressor of crank round slide block mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170118 Termination date: 20180803 |