CN201546922U - Guiding shaft type linear reciprocating-piston compressor - Google Patents
Guiding shaft type linear reciprocating-piston compressor Download PDFInfo
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- CN201546922U CN201546922U CN2009202414646U CN200920241464U CN201546922U CN 201546922 U CN201546922 U CN 201546922U CN 2009202414646 U CN2009202414646 U CN 2009202414646U CN 200920241464 U CN200920241464 U CN 200920241464U CN 201546922 U CN201546922 U CN 201546922U
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- guide
- axis
- piston
- axle sleeve
- guiding shaft
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Abstract
This utility model provides a guiding shaft type linear reciprocating-piston compressor comprising a crankshaft, a cylinder, a piston, a piston rod, a guiding shaft, a connecting member and a shaft sleeve. The piston is slidably configured inside the cylinder. One end of the piston rod is fixedly connected or integrated with the piston rod, and the other end of the piston rod is connected with the connecting member on which a guide hole is arranged. The shaft sleeve is directly and rotatably sheathed or indirectly and rotatably sheathed by a bearing on the crankshaft. A shaft sleeve hole is arranged on the shaft sleeve in a manner of deflection from an axis of the crankshaft. Two ends of the guiding shaft are cooperatively connected with the guide hole on the connecting component. The middle part of the guiding shaft is cooperatively connected with the shaft sleeve hole on the shaft sleeve. The guiding shaft utilizes a structure, i.e. the guiding shaft is deflected from the axis of the crankshaft, thereby avoiding the intersection between the guiding shaft and the crankshaft. Therefore, the guiding shaft can be integrally manufactured for the sake of easy manufacture and detection. In addition, the acting force point at which the crankshaft acts onto the connecting member can be conveniently arranged on a stressed surface of the guiding shaft, therefore, the stress status of the crankshaft, the shaft sleeve and the connecting member can be improved.
Description
Technical field
The utility model belongs to the Compressor Technology field, relates to a kind of guiding shaft type linear reciprocating piston compressor especially.
Background technique
The piston of tradition crankshaft connecting rod type compressor produces cylinder bigger lateral force, this is because connecting rod has due to the oscillating motion with respect to cylinder, for overcoming these drawbacks, Chinese patent application CN200910115490.9 has proposed a kind of linear reciprocating piston type compressor, Fig. 1 to Fig. 5 has provided the specific embodiment of this compressor, it includes motor 10, main shaft 11, bent axle 12, crankcase 13, cylinder 14, piston 15 and piston rod 16, the main shaft 11 of motor 10 is connected with bent axle 12, piston 15 is configured in the cylinder 14 slidably, piston 15 and cylinder 14 all adopt a pair of and divide and be located at by the both sides of bent axle 12, piston 15 is fastenedly connected with piston rod 16 and is one, also be provided with axle sleeve 22 in addition, the connector element 20 and the axis of guide 30, described axle sleeve 22 is sleeved on the bent axle 12 rotationally, wherein the layout of the axis of guide 30 has two kinds of forms: 1) middle part of the axis of guide 30 is connected with described axle sleeve 22, and the axis of guide 30 is middle interposed structure with respect to axle sleeve 22, the axis and the bent axle 12 that are the axis of guide 30 intersect, the axis of guide 30 is made two sections minor axises and is separated on both sides by axle sleeve 22 for this reason, connector element 20 is made the framework of an annular in addition, one end of described two piston rods 16 is separately fixed at the relative two ends of this connector element 20, the sidewall of connector element 20 is provided with two pilot holes 21 perpendicular to piston rod 16, and two sections minor axises that constitute the axis of guide 30 are located in respectively in these two pilot holes 21 and also are slidingly matched with it; 2) middle part of the axis of guide 30 is vertical cross handing-over structure with piston rod 16 and is fastenedly connected, axle sleeve 22 is made a yoke structure with two forks arms simultaneously, described two yokes are provided with pilot hole 21, and the axis of guide 30 is located in this pilot hole 21 and is slidingly matched with it.Obviously, be straight reciprocating motion at the constraint lower piston 15 of two cylinders 14 and the motion mode of piston rod 16, slowed down the side pressure that piston 15 acts on cylinder 14 thus.But, above-mentioned patent application still has needs improvements: at first, if the axis of guide 30 is mid-distribution (referring to Fig. 1-2) with respect to axle sleeve 22, then the force position of bent axle 12 propeller shaft sleeves 22 can be arranged on the stress surface of the axis of guide 30, though the force-bearing situation of the bent axle 12 of compressor, axle sleeve 22 and the axis of guide 30 etc. is preferable, this moment, the axis of guide 30 but was not easy to make and detection because of being made into the two-part structure and being separated by axle sleeve 22; Secondly, if the middle part and the piston rod 16 of the axis of guide 30 are made cross fastening structure (referring to Fig. 3-5), then the axis of guide 30 can be made the bearing structure and be convenient to make and detect, but this moment bent axle 12 propeller shaft sleeves 22 force position and the stress surface of the axis of guide 30 not on same, the result causes the force-bearing situation of bent axle 12, axle sleeve 22 and the axis of guide 30 of compressor not good.
Summary of the invention
The utility model provides a kind of guiding shaft type linear reciprocating piston compressor, purpose is both to be convenient to that the axis of guide is made overall structure and makes and detect with convenient, is convenient to again simultaneously on the stress surface that force position with the crank-driven axle sleeve is arranged in the axis of guide to improve the force-bearing situation of bent axle, axle sleeve and the axis of guide.
The purpose of this utility model is achieved in that
Guiding shaft type linear reciprocating piston compressor, include: bent axle, cylinder, piston and piston rod and the axis of guide, axle sleeve and connector element, described piston is configured in the cylinder slidably, one end of described piston rod is fastenedly connected with piston or makes with piston is whole, the other end and the connector element of piston rod are fastenedly connected, connector element is provided with pilot hole, described axle sleeve directly rotates suit or is contained on the bent axle by the indirect rotating sleeve of bearing, it is characterized in that axle sleeve is provided with axle sleeve hole, described axle sleeve hole is bias structure with respect to bent axle, the two ends of the described axis of guide and the pilot hole on the connector element are connected, and the central region of the axis of guide is passed through described axle sleeve hole and is connected with axle sleeve hole.
The section of the fitting surface of the section of the above-mentioned axis of guide and the fitting surface of axle sleeve hole, the axis of guide and pilot hole be shaped as circle, square, rectangle or triangle.
The above-mentioned axis of guide is that drive fit, the axis of guide cooperate for movingly with axle sleeve hole with cooperating of pilot hole; Perhaps the axis of guide is that drive fit, the axis of guide cooperate for movingly with pilot hole with cooperating of axle sleeve hole.
Dispose rolling element or bearing between the above-mentioned axis of guide and the axle sleeve hole or between the axis of guide and pilot hole.
The number of above-mentioned cylinder, piston and piston rod is two, and adopt straight line to interposed structure or dislocation to interposed structure.
The number of above-mentioned cylinder, piston and piston rod is one, and is provided with a guide rod and guide pin bushing, described guide rod and guide pin bushing and cylinder linearly opposed or the dislocation to interposed structure.
Dispose rolling element or bearing between above-mentioned guide rod and the guide pin bushing.
The utility model guiding shaft type linear reciprocating piston compressor adopts the axis of guide with respect to the mode of structure of crankshaft center line for biasing, has avoided intersecting of the axis of guide and bent axle, so the axis of guide can wholely make, and helps making and detection; The force position that affacts on the axle sleeve of bent axle can be arranged on the stress surface of the axis of guide easily in addition, therefore can improve the force-bearing situation of bent axle and the axle sleeve and the axis of guide.
Description of drawings
What Fig. 1 provided is the embodiment's of Chinese patent application CN200910115490.9 axonometric drawing;
Fig. 2 is a schematic cross section embodiment illustrated in fig. 1;
What Fig. 3 provided is another embodiment's of Chinese patent application CN200910115490.9 axonometric drawing;
Fig. 4 is a schematic cross section embodiment illustrated in fig. 3;
Fig. 5 is a longitudinal section schematic representation embodiment illustrated in fig. 3;
Fig. 6 is the drawing in side sectional elevation of drive fit structure for the utility model adopts pair cylinder list axis of guides and the axis of guide and axle sleeve hole;
Fig. 7 is the longitudinal section schematic representation of Fig. 6;
Fig. 8 is the main parts size partial isometric of Fig. 6;
It is the sectional drawing of drive fit structure that Fig. 9 leads the two axis of guides of the two cylinders of employing and the axis of guide and axle sleeve hole for the utility model;
Figure 10 is the sectional drawing of drive fit structure for the utility model adopts pair cylinder list axis of guides and the axis of guide and pilot hole;
Figure 11 is the sectional drawing of drive fit structure for the utility model adopts the two axis of guides of pair cylinders and the axis of guide and pilot hole;
The sectional drawing of Figure 12 single cylinder and single axis of guide structure for the utility model adopts;
The sectional drawing of Figure 13 single cylinder and two axis of guide structures for the utility model adopts.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described, referring to Fig. 6 to Figure 13:
The figure number of part, title and function are inherited Fig. 1-5 among the figure.Guiding shaft type linear reciprocating piston compressor, include main shaft 11, bent axle 12, crankcase 13, cylinder 14, piston 15 and piston rod 16 and the axis of guide 30, connector element 20 and axle sleeve 22, wherein motor 10 both can directly be connected with main shaft 11, also can be connected with main shaft 11 indirectly by belt etc., described main shaft 11 is connected with bent axle 12, piston 15 is configured in the cylinder 14 slidably, described piston 15 and piston rod 16 are for being fastenedly connected or being integrally manufactured, the other end of piston rod 16 is connected with described connector element 20, connector element 20 is provided with pilot hole 21, described axle sleeve 22 is suit or be sleeved on the bent axle 12 indirectly rotationally by bearing rotationally directly, axes O 1 biasing with respect to bent axle 12 on described axle sleeve 22 is provided with axle sleeve hole 23, pilot hole 21 on the two ends of the described axis of guide 30 and the connector element 20 is connected, the central region of the axis of guide 30 is passed through described axle sleeve hole 23 and is connected with axle sleeve hole 23, in other words the axis of guide 30 is the bias structure state with respect to bent axle 12, it is to be noted, the two kinds of forms that are connected with of the axis of guide 30 and axle sleeve hole 23 and pilot hole 21: first kind of form that is connected is that the axis of guide 30 adopts drive fits with pilot hole 21, the axis of guide 30 adopts movingly with axle sleeve hole 23 simultaneously, between the axis of guide 30 and axle sleeve hole 23, can dispose rolling element or the bearing 34 that to reduce friction this moment, wherein rolling element can be roller, needle roller, ball or roll sleeve, bearing 34 can be linear bearing or sliding bearing; Second kind of form that is connected is that the axis of guide 30 adopts movingly with pilot hole 21, the axis of guide 30 adopts drive fit with axle sleeve hole 23 simultaneously, similarly also can dispose rolling element or bearing 34 between the axis of guide 30 and pilot hole 21; Because axle sleeve hole 23 is with respect to bent axle 12 biasings, therefore the axis of guide 30 also is bias structure with respect to bent axle 12, for fear of interference, above-mentioned Offset is preferably non-intersect for good with bent axle 12 to guarantee the axis of guide 30, in addition, the quantity of the axis of guide 30 can adopt one, two or several, and the axle sleeve hole 23 of respective numbers is set on axle sleeve 22, and the while is provided with the pilot hole 21 of the quantity that matches with it on connector element 20, it should be noted that the above-mentioned axis of guide 30, the section configuration of the fitting surface of axle sleeve hole 23 and pilot hole 21 can be circle, square, rectangle or triangle; It must be noted that axes O a, the Ob of the axis of guide 30 and cylinder 14 both can intersect also can be non-intersect, is the best with the structure that intersects vertically wherein; Need to prove, cylinder 14, the number of piston 15 and piston rod 16 can also can be one for two, when adopting two cylinder dual-piston structure, two groups of cylinders 14 can be straight lines to interposed structure or dislocation to interposed structure, and be arranged in the both sides of bent axle 12, the opposed axes O a that is meant two cylinders 14 of so-called straight line, Ob is coaxial setting (allowing to exist certain foozle and alignment error), the opposed axes O a that is meant two cylinders 14 of so-called dislocation, Ob parallel but non-intersect (allowing to exist certain foozle and alignment error), when it adopts single cylinder list piston structure, for the determinacy that guarantees to move, the connector element 20 of cylinder opposite side is provided with a guide rod 32 and guide pin bushing 33, wherein guide pin bushing 33 is sleeved on the guide rod 32 and with guide rod 32 and is slidingly matched, guide pin bushing 33 is fixed on the crankcase 13, similarly described guide rod 32 and guide pin bushing 33 with cylinder 14 linearly opposed or dislocation to interposed structure; It is to be noted, in order to reduce friction, except that being provided with rolling element or the bearing 34 between the above-mentioned axis of guide 30 and the axle sleeve hole 23 or between the axis of guide 30 and the pilot hole 21, also rolling element or sliding bearing (not drawing among Figure 12) can be set between guide rod 32 and guide pin bushing 33.
The utility model guiding shaft type linear reciprocating piston compressor adopts the axis of guide 30 with respect to the mode of structure of bent axle 12 for biasing, has avoided intersecting of the axis of guide 30 and bent axle 12, so the axis of guide 30 can wholely make, and helps making and detect; The force position that affacts on the connector element 20 of bent axle 12 can be arranged on the stress surface of the axis of guide 30 easily in addition, therefore can improve the force-bearing situation of bent axle 12, axle sleeve 22 and the axis of guide 30.
The foregoing description only is one of preferred embodiment of the present utility model; be not to limit protection domain of the present utility model according to this; so: all various equivalences of doing according to structure of the present utility model, shape and principle change, and all should be covered by within the protection domain of the present utility model.
Claims (7)
1. guiding shaft type linear reciprocating piston compressor, include bent axle, cylinder, piston, the piston rod and the axis of guide, axle sleeve and connector element, described piston is configured in the cylinder slidably, one end of described piston rod is fastenedly connected with piston or makes with piston is whole, the other end and the connector element of piston rod are fastenedly connected, connector element is provided with pilot hole, described axle sleeve directly rotates suit or is contained on the bent axle by the indirect rotating sleeve of bearing, it is characterized in that axle sleeve is provided with axle sleeve hole, described axle sleeve hole is bias structure with respect to bent axle, the two ends of the described axis of guide and the pilot hole on the connector element are connected, and the central region of the axis of guide is passed through described axle sleeve hole and is connected with axle sleeve hole.
2. guiding shaft type linear reciprocating piston compressor according to claim 1, it is characterized in that the fitting surface of the axis of guide and axle sleeve hole section, the axis of guide and pilot hole fitting surface section be shaped as circle, square, rectangle or triangle.
3. guiding shaft type linear reciprocating piston compressor according to claim 1 and 2 is characterized in that the axis of guide and cooperating of pilot hole are that drive fit, the axis of guide cooperate for movingly with axle sleeve hole; Perhaps the axis of guide is that drive fit, the axis of guide cooperate for movingly with pilot hole with cooperating of axle sleeve hole.
4. guiding shaft type linear reciprocating piston compressor according to claim 3 is characterized in that disposing rolling element or bearing between the axis of guide and the axle sleeve hole or between the axis of guide and pilot hole.
5. guiding shaft type linear reciprocating piston compressor according to claim 4, the number that it is characterized in that described cylinder, piston and piston rod is two, and adopt straight line to interposed structure or dislocation to interposed structure.
6. guiding shaft type linear reciprocating piston compressor according to claim 4, the number that it is characterized in that cylinder, piston and piston rod is one, and being provided with a guide rod and guide pin bushing, the linearly opposed or dislocation of described guide rod and guide pin bushing and cylinder is to interposed structure.
7. guiding shaft type linear reciprocating piston compressor according to claim 6 is characterized in that disposing rolling element or bearing between guide rod and guide pin bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202414646U CN201546922U (en) | 2009-11-19 | 2009-11-19 | Guiding shaft type linear reciprocating-piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202414646U CN201546922U (en) | 2009-11-19 | 2009-11-19 | Guiding shaft type linear reciprocating-piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546922U true CN201546922U (en) | 2010-08-11 |
Family
ID=42602092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202414646U Expired - Fee Related CN201546922U (en) | 2009-11-19 | 2009-11-19 | Guiding shaft type linear reciprocating-piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787998A (en) * | 2012-05-07 | 2012-11-21 | 平阳县金利机具有限公司 | Variable frequency oilless air compressor |
-
2009
- 2009-11-19 CN CN2009202414646U patent/CN201546922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787998A (en) * | 2012-05-07 | 2012-11-21 | 平阳县金利机具有限公司 | Variable frequency oilless air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20121119 |