CN203548114U - Oil-free compressor with tolerance type rotation limiting mechanism - Google Patents
Oil-free compressor with tolerance type rotation limiting mechanism Download PDFInfo
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- CN203548114U CN203548114U CN201320636123.5U CN201320636123U CN203548114U CN 203548114 U CN203548114 U CN 203548114U CN 201320636123 U CN201320636123 U CN 201320636123U CN 203548114 U CN203548114 U CN 203548114U
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- balance
- rocking arm
- compressor
- rotation mechanism
- limit rotation
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Abstract
The utility model belongs to the technical field of compressors, and relates to an oil-free compressor with a tolerance type rotation limiting mechanism. The oil-free compressor comprises a piston, a connecting rod, a shaft box, a driving shaft and a swing disc. The oil-free compressor is characterized in that the tolerance type rotation limiting mechanism is adopted and is used for controlling the rotation angle amplitude value of the swing disc around the axis of a driving shaft, the limiting mechanism comprises a swing arm, one end of the swing arm is directly matched and connected with the swing disc through a ball hinging structure or is indirectly matched and connected with the swing disc through a swing disc pin, and the other end of the swing arm is directly matched and connected with the shaft box through the ball hinging structure or is indirectly matched and connected with the shaft box through a shaft box pin. The two ends of the swing arm are respectively matched and connected with the swing disc and the shaft box through the ball hinging structures, and then the matching mode of the universal connection is formed, so the compressor can well adapt to or accommodate various errors and deformations, and the sensitivity to the errors and deformations is avoided, namely that the compressor and the limiting mechanism can reliably run under the conditions of larger manufacturing error, assembly error, stress deformation and temperature difference deformation.
Description
Technical field
The utility model belongs to Compressor Technology field, relates to oilless compressor, relates in particular to the swash plate class oilless compressor with limit rotation mechanism.
Background technique
Chinese patent application CN103291588A and CN103291581A have announced the some swash plate class compressors that can realize without oil output high-pressure working medium, comprise clino-axis type compressor and oblique tray type compressor, the compressor that above-mentioned patent provides includes piston, connecting rod, live axle and balance; For clino-axis type compressor, also include one with the inclined shaft of drive axis slanted arrangement, this inclined shaft and live axle be fastenedly connected or with the live axle making that is structure as a whole, described balance is sleeved on rotationally on inclined shaft and is subject to the driving of inclined shaft; For oblique tray type compressor, include a drive plate, this drive plate and live axle be fastenedly connected or with the live axle making that is structure as a whole, drive plate be provided with one with the driving plane of drive axis slanted arrangement, described balance is driven by the driving plane of this drive plate directly or indirectly; In order to limit balance, there is the significantly rotation around drive axis in above-mentioned compressor, be provided with a limit rotation mechanism, described limit rotation mechanism includes a balance pin, a rocking arm and an axle box pin, one end and the rocking arm of described balance pin connects, the other end and the balance of balance pin connect, one end and the rocking arm of described axle box pin connects, the other end and the axle box of axle box pin connect, and rocking arm can rotate around axle box pin axis, balance can rotate around balance pin axis.The casing of above-mentioned compressor is Open architecture, in its chamber, do not place liquid lubricant oil, therefore avoided having the phenomenon in liquid lubricating oil splash inlet casing in hydraulic shrinking machine, on the piston of compressor, dispose the seal ring that self-enrichment material is made in addition, therefore the high-pressure working medium that can guarantee compressor output is not substantially containing lubricant oil.
But, the limit rotation mechanism that the clino-axis type compressor that above-mentioned patent application is announced or oblique tray type compressor and they adopt, still there is the further improved place of being worth, be mainly manifested in them very responsive to various errors and distortion, to such an extent as to need to improve accuracy of manufacturing, assembly precision and strengthen rigidity and the material of selecting and treatment process the functional reliability that could ensure compressor, result causes the cost of production of compressor to rise.In fact, above-mentioned compressor and the limit rotation mechanism that adopts thereof position and the Gesture to each kinematic pair is very accurate, when there is slightly larger error and distortion, such as drive axis and axle box pin axis non-intersect, it is larger etc. that the fixed point of the working plane of balance pin axis or axle box pin axis and balance departs from, even all can greatly increase compressor main movement pair, especially limit the kinematic pair of rotation mechanism to occur clashing into the possibility that occurs interference, cause thus larger mechanical noise and reduce the ability that part resisting fatigue is destroyed, so that cause compressor cisco unity malfunction.
Summary of the invention
The utility model provides a kind of oilless compressor with tolerance formula limit rotation mechanism, and object is to adapt to greatly and to hold the various errors and the distortion that in the each mechanism of compressor and part, occur, thereby ensures compressor operating maintainability.
To achieve these goals, the utility model provides a kind of oilless compressor with tolerance formula limit rotation mechanism, comprise piston, connecting rod, axle box, live axle and balance, on described live axle, be provided with inclined shaft or drive plate, described balance is driven by inclined shaft or drive plate, it is characterized in that: be provided with and control the tolerance formula limit rotation mechanism of balance around drive axis rotation angle amplitude, this limit rotation mechanism includes a rocking arm, one end of rocking arm adopts ball-joint structure directly with balance connects or indirect and balance connects via a balance pin, the other end of rocking arm adopts ball-joint structure directly with axle box connects or indirect and axle box connects via an axle box pin.
The position that above-mentioned rocking arm and balance or rocking arm and balance pin connect is that the position that ball head structure, rocking arm and axle box or rocking arm and axle box pin connect is also ball head structure.
The shaft of above-mentioned rocking arm is shaft-like, and centre of sphere line and the balance of rocking arm two ends ball head structure are non-intersect.
The shaft of above-mentioned rocking arm is direct rod shape.
Above-mentioned rocking arm and balance connect the line of the centre of sphere of ball head structure to the line of balance working plane fixed point, the rocking arm two ends ball head structure centre of sphere, and the angular range of the working angle that above-mentioned two lines form is between 60 degree to 120 degree.
The centre of sphere of the ball head structure of above-mentioned rocking arm and the matched one end of balance drops on the working plane of balance.
The making that is fastenedly connected or is structure as a whole of above-mentioned piston and connecting rod, described connecting rod and balance adopt ball-joint to be connected.
Above-mentioned connecting rod is connected with the bulb of balance on the working plane that the centre of sphere drops on balance.
Above-mentioned compressor is clino-axis type compressor, and its inclined shaft axis, drive axis, balance working plane are intersected on a fixed point.
A kind of oilless compressor with tolerance formula limit rotation mechanism of the utility model, because swing arm two ends adopts the matched mode of structure of ball-joint structure and balance and axle box, in fact formed the matching model of universal connection, therefore can adapt to well or hold various errors and distortion, that is no longer responsive to error and distortion, even in other words also can guarantee under the situation of larger foozle, assembly error and stress deformation and temperature deformation that compressor and limit rotation mechanism thereof move work reliably.
Accompanying drawing explanation
Fig. 1 is that a kind of to have tolerance formula limit rotation mechanism oilless compressor be that the axle that clino-axis type compressor and its rocking arm are knee shape measures intention to the utility model;
Fig. 2 is that a kind of to have tolerance formula limit rotation mechanism oilless compressor be that the axle that clino-axis type compressor and its rocking arm are direct rod shape measures intention to the utility model;
Fig. 3 is a kind of limit rotation mechanism schematic diagram with tolerance formula limit rotation mechanism oilless compressor shown in Fig. 2.
Embodiment
With specific embodiment, the utility model is further described below, referring to Fig. 1-3:
A kind of oilless compressor with tolerance formula limit rotation mechanism, comprise piston 1, connecting rod 2, axle box 3, live axle 4 and balance 5, on described live axle 4, be provided with inclined shaft 4a(referring to Fig. 1 to Fig. 3) or drive plate (not shown), described balance 5 is driven by inclined shaft 4a or drive plate, characteristic of the present utility model is: be provided with and control the tolerance formula limit rotation mechanism of balance 5 around drive axis O1 rotation angle amplitude, this limit rotation mechanism includes a rocking arm 6, one end of rocking arm 6 adopts ball-joint structure 7 directly to connect (not shown) with balance 5 or indirect and balance 5 connects (as shown in Figure 1) via a balance pin 8, the other end of rocking arm 6 adopts ball-joint structure 7 directly to connect (as shown in Figure 1) with axle box 3 or indirect and axle box 3 connects (as shown in Figure 2) via an axle box pin 9, compared with prior art, swing arm 6 two ends of the present utility model adopt the matched mode of structure of ball-joint structure 7 and balance 5 and axle box 3, in fact formed the matching model of universal connection, therefore can adapt to well or hold various errors and distortion, that is no longer responsive to error and distortion, even in other words in larger foozle, under the situation of assembly error and stress deformation and temperature deformation, also can guarantee that compressor and limit rotation mechanism thereof move work reliably.It should be noted that, when compressor adopts inclined shaft form layout, making that the inclined shaft 4a of compressor and live axle 4 are fastenedly connected or inclined shaft 4a and live axle 4 are structure as a whole, now inclined shaft axes O 2 is inclined with drive axis O1, optimised form is that inclined shaft axes O 2 is the crossing layout (as shown in Figure 3) of inclination with drive axis O1, and its balance 5 of the compressor of clino-axis type is sleeved on rotationally inclined shaft 4a and goes up and be subject to the driving of inclined shaft 4a and move.No matter the utility model compressor is to adopt clino-axis type layout (as shown in Figure 1 to Figure 3) still to adopt inclined disc type layout (not shown), all can define the working plane P of balance 5, working plane P can pass through or also can pass through or pass through the entity of balance 5 imaginary space of balance 5, but working plane P follows all the time balance 5 and moves together and keep constant with respect to position and the attitude of balance 5, working plane P and drive axis O1 are non-perpendicular and nonparallel oblique layout, obviously, the plane that meets above-mentioned condition has infinitely multiple, therefore need the working plane P as balance 5 in conjunction with the selected optimum plane of concrete condition, in addition, the utility model is defined as the intersection point Q of working plane P and drive axis O1 the fixed point (as shown in Figure 3) of the working plane P of balance 5.It is to be noted, balance pin 8 in the utility model both can be with balance 5 integral productions, be fastenedly connected (as shown in Figure 1) on balance 5 after also can making separately, axle box pin 9 both can be with axle box 3 integral productions, be fastenedly connected (as shown in Figure 2) on axle box 3 after also can making separately, certainly balance pin 8 is connected with moving the connecting as being rotatably assorted of balance 5 after can also making separately, and axle box pin 9 is connected with moving the connecting as being rotatably assorted of axle box 3 after also can making separately.Also it is to be noted in addition, in the utility model, said ball-joint structure 7 had both comprised that globe joint structure also comprised bulb hinged structure, wherein a kind of preferred mode is: rocking arm 6 is ball head structure with balance 5 or rocking arm 6 with the position that balance pin 8 connects, rocking arm 6 is also ball head structure with axle box 3 or rocking arm 6 with the position that axle box pin 3 connects, here said ball head structure can be that the position, termination that rocking arm 6 is done to connect is made bulb (as depicted in figs. 1 and 2) and connects with balance 5 or balance pin 8, also can be the match around the boundary line of balance 5 or balance pin 8 is made to bulb (not shown) and connect with rocking arm 6, axle box 3 or axle box pin 9 can also be done to the position connecting makes bulb (as shown in Figure 2) and connects with rocking arm 6, certain said ball head structure of the utility model also comprises to be made bulb by balance pin 8 and connects with balance 5 or/and axle box pin 9 is made to bulb and connect with axle box 3.
The form of rocking arm 6 its shafts in the utility model can be mast shape, en plaque etc., wherein take shaft, be shaft-like as preferred construction form, comprise that various cylinders are shaft-like, rectangular rod, cone mast shape or special-shaped mast etc., that is the shaft transverse cross-sectional profile of rocking arm 6 of the present utility model can be circular, rectangle, square, I shape and other abnormity etc., along the length direction of shaft, can be that the bar that uniform section is constant can be also the bar that uniform section changes in addition, no matter which kind of is shaft-like, the centre of sphere line (referring to straight line line) of rocking arm 6 two ends ball head structures both can pass through the entity part that the entity part of shaft also can not passed through shaft, especially, when rocking arm 6 adopts knee form, (as shown in Figure 1) above-mentioned centre of sphere line can not pass through the entity of shaft, above-mentioned centre of sphere line is arranged to interfere with balance 5 with the non-intersect rocking arm 6 that helps avoid of balance 5.Obviously, for the stability of simplified manufacturing technique and motion, it is favourable (as shown in Figure 2) that the shaft of rocking arm 6 is designed to direct rod shape.Above-mentioned rocking arm 6 connects the line of the centre of sphere of ball head structure to the line of balance 5 working plane P fixed point Q, the rocking arm 6 two ends ball head structure centre ofs sphere with balance 5, that angle that is less than 180 degree that above-mentioned two lines form is the working angle δ (as shown in Figure 3) of rocking arm 6 to balance 5, when working angle δ equals or approach 90 rocking arms 6 while spending to limit efficiency the best that balance 5 rotates, while considering compressor operation, the position of rocking arm 6 and attitude change, and therefore the angular range of working angle δ being limited between 60 degree to 120 degree is that a General is preferably selected.The variation of waving in the course of the work fluctuating for rocking arm 6 is more even, and the centre of sphere of the one end that rocking arm 6 and balance 5 can be connected, the ball head structure of its rocking arm 6 drops on the working plane P of balance 5.
The utility model is in order to realize without oily output squeezing working medium, open axle box 3 structures will be adopted, now axle box 3 will not placed liquid lubricant oil, under this situation, if by the making that is fastenedly connected or is structure as a whole of piston 1 and connecting rod 2, piston 1 motion lubricated with there are not needs being connected of connecting rod 2 coordinates, the seal ring that self-enrichment material is made can be set in addition easily on piston 1, under this background, by adopting the ball-joint (not shown) that is connected coordinating of connecting rod 2 and balance 5, can in their cooperation place, place lubricant oil or lubricant grease easily, contribute to undoubtedly to realize exporting without oil of compressor.It is pointed out that, when adopting ball-joint to be connected with coordinating of balance 5 on connecting rod 2, the centre of sphere S of each ball-joint goes up as best (as shown in Figure 3) to be in the working plane P of balance 5.If during the utility model clino-axis type compressor, if the inclined shaft axes O 2 of inclined shaft 4a is arranged to be intersected in a bit with the working plane P of drive axis O1 and balance 5 (that is being intersected in fixed point Q), the layout of compressor, by will be more steady for the running of the best compressor, be this situation shown in Fig. 3.
A kind of oilless compressor with tolerance formula limit rotation mechanism of the utility model, because swing arm 6 two ends adopt the matched mode of structure of ball-joint structure 7 and balance 5 and axle box 3, in fact formed the matching model of universal connection, therefore can adapt to well or hold various errors and distortion, that is no longer responsive to error and distortion, even in other words also can guarantee under the situation of larger foozle, assembly error and stress deformation and temperature deformation that compressor and limit rotation mechanism thereof move work reliably.
Stating embodiment is only some preferred embodiments of the present utility model; not limit according to this protection domain of the present utility model; therefore: all various equivalences of doing according to structure of the present utility model, shape, principle change, within all should being encompassed in protection domain of the present utility model.
Claims (9)
1. one kind has the oilless compressor of tolerance formula limit rotation mechanism, comprise piston, connecting rod, axle box, live axle and balance, on described live axle, be provided with inclined shaft or drive plate, described balance is driven by inclined shaft or drive plate, it is characterized in that: be provided with and control the tolerance formula limit rotation mechanism of balance around drive axis rotation angle amplitude, this limit rotation mechanism includes a rocking arm, one end of rocking arm adopts ball-joint structure directly with balance connects or indirect and balance connects via a balance pin, the other end of rocking arm adopts ball-joint structure directly with axle box connects or indirect and axle box connects via an axle box pin.
2. a kind of oilless compressor with tolerance formula limit rotation mechanism according to claim 1, is characterized in that: the position that rocking arm and balance or rocking arm and balance pin connect is that the position that ball head structure, rocking arm and axle box or rocking arm and axle box pin connect is also ball head structure.
3. a kind of oilless compressor with tolerance formula limit rotation mechanism according to claim 2, is characterized in that: the shaft of described rocking arm is shaft-like, and centre of sphere line and the balance of rocking arm two ends ball head structure are non-intersect.
4. a kind of oilless compressor with tolerance formula limit rotation mechanism according to claim 3, is characterized in that: the shaft of described rocking arm is direct rod shape.
5. according to any one described in claim 1 to 4, there is the oilless compressor of tolerance formula limit rotation mechanism, it is characterized in that: rocking arm and balance connect the line of the centre of sphere of ball head structure to the line of balance working plane fixed point, the rocking arm two ends ball head structure centre of sphere, the angular range of the working angle that two above-mentioned lines form is between 60 degree to 120 degree.
6. the oilless compressor according to any one described in claim 1 to 4 with tolerance formula limit rotation mechanism, is characterized in that: the centre of sphere of the ball head structure of rocking arm and the matched one end of balance drops on the working plane of balance.
7. the oilless compressor according to any one described in claim 1 to 4 with tolerance formula limit rotation mechanism, is characterized in that: the making that is fastenedly connected or is structure as a whole of described piston and connecting rod, described connecting rod and balance employing ball-joint are connected.
8. a kind of oilless compressor with tolerance formula limit rotation mechanism according to claim 7, is characterized in that: described connecting rod is connected with the bulb of balance on the working plane that the centre of sphere drops on balance.
9. according to any one described in claim 1 to 4, there is the oilless compressor of tolerance formula limit rotation mechanism, it is characterized in that: when described compressor is clino-axis type compressor, its inclined shaft axis, drive axis, balance working plane are intersected on a fixed point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636123.5U CN203548114U (en) | 2013-10-15 | 2013-10-15 | Oil-free compressor with tolerance type rotation limiting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636123.5U CN203548114U (en) | 2013-10-15 | 2013-10-15 | Oil-free compressor with tolerance type rotation limiting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548114U true CN203548114U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320636123.5U Withdrawn - After Issue CN203548114U (en) | 2013-10-15 | 2013-10-15 | Oil-free compressor with tolerance type rotation limiting mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN203548114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557139A (en) * | 2013-10-15 | 2014-02-05 | 浙江鸿友压缩机制造有限公司 | Oilless compressor with capacity difference type rotation limiting mechanism |
-
2013
- 2013-10-15 CN CN201320636123.5U patent/CN203548114U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557139A (en) * | 2013-10-15 | 2014-02-05 | 浙江鸿友压缩机制造有限公司 | Oilless compressor with capacity difference type rotation limiting mechanism |
| CN103557139B (en) * | 2013-10-15 | 2016-05-04 | 浙江鸿友压缩机制造有限公司 | A kind of oilless (oil free) compressor with tolerance formula limit rotation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |