CN201908840U - Slide valve regulation mechanism and screw compressor with same - Google Patents
Slide valve regulation mechanism and screw compressor with same Download PDFInfo
- Publication number
- CN201908840U CN201908840U CN2011200228715U CN201120022871U CN201908840U CN 201908840 U CN201908840 U CN 201908840U CN 2011200228715 U CN2011200228715 U CN 2011200228715U CN 201120022871 U CN201120022871 U CN 201120022871U CN 201908840 U CN201908840 U CN 201908840U
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- China
- Prior art keywords
- guiding valve
- connecting rod
- controlling mechanism
- piston
- slide valve
- 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 - Lifetime
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- 230000008844 regulatory mechanism Effects 0.000 title abstract 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 22
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a slide valve regulation mechanism and a screw compressor with the same. The slide valve regulation mechanism comprises a slide valve, a connecting rod, a piston, a guide part and a locking part; one end surface of the slide valve is provided with a threaded hole; the connecting rod is provided with a first end and a second end, which are provided with screw threads, and moreover, the first end is mounted in the threaded hole; the piston is sleeved on the second end of the connecting rod; the guide part is sleeved on the connecting rod between the slide valve and the piston; and the locking part is mounted on the second end of the connecting rod, and clings to the piston. The slide valve regulation mechanism can effectively prevent the slide valve from being disconnected from the connecting rod due to vibration, and thereby the reliability of the slide valve regulation mechanism is enhanced; and the screw compressor with the slide valve regulation mechanism can be stably and steplessly regulated during operation.
Description
Technical field
The utility model relates to refrigerating field, in particular to a kind of guiding valve controlling mechanism and have the helical-lobe compressor of this guiding valve controlling mechanism.
Background technique
The unit of helical-lobe compressor will be realized step-less adjustment in the process of operation, this guiding valve controlling mechanism that just needs helical-lobe compressor is the to-and-fro motion refrigerating capacity of regulating unit continually, the to-and-fro motion of guiding valve controlling mechanism drives guiding valve by piston by connecting rod and realizes, and slide-valve gear is not taked any anti-loosening measure as yet in the prior art, the vibration that slide-valve gear is produced in frequent to-and-fro motion process can cause connecting rod to fluff with being threaded of guiding valve, to be difficult to guarantee the perpendicularity of connecting rod and guiding valve like this even cause connecting rod and the disengagement of guiding valve is connected, cause guiding valve controlling mechanism failure phenomenon.
The model utility content
The utility model aims to provide a kind of guiding valve controlling mechanism and has the helical-lobe compressor of this guiding valve controlling mechanism, is connected the problem that causes the guiding valve controlling mechanism to lose efficacy to solve guiding valve in the prior art because vibrations are thrown off with connecting rod.
To achieve these goals,, provide a kind of guiding valve controlling mechanism, having comprised according to an aspect of the present utility model: guiding valve, an end face of guiding valve is provided with tapped hole; Connecting rod has first end and the second end on this connecting rod, first end and the second end are provided with screw thread, and first end is screwed onto in the tapped hole on the guiding valve; Piston is sleeved on the second end of connecting rod; Also comprise: guiding element is sleeved on the connecting rod between guiding valve and the piston; Locking element is installed on the second end of connecting rod, and fits with piston.
Further, guiding element and connecting rod are Spielpassung.
Further, guiding element fits near the end face of guiding valve one side and the end face that guiding valve is provided with tapped hole.
Further, piston is provided with the installation groove, and guiding element is installed in to be installed in the groove.
Further, the installation groove of guiding element and piston is a Spielpassung.
Further, guiding element is a sleeve.
Further, locking element is a nut.
Further, between locking element and piston, be provided with the locking auxiliary member.
Further, the locking auxiliary member is pressing plate or compression spring.
According on the other hand of the present utility model, a kind of helical-lobe compressor is provided, comprise above-mentioned guiding valve controlling mechanism.
According to guiding valve controlling mechanism of the present utility model, adopt guiding element that the sphere of activities of connecting rod is limited, by locking element guiding element and piston are compressed simultaneously, cause connecting rod to produce tensile deformation, dwindled the thread pitch between connecting rod first end and the guiding valve tapped hole, increase the frictional force between the screw thread, prevented guiding valve effectively, improved the reliability of guiding valve controlling mechanism because vibrations are connected with the connecting rod disengagement.
The helical-lobe compressor with above-mentioned guiding valve controlling mechanism that the utility model provides can be in operation and realize stable step-less adjustment.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the sectional view of the utility model guiding valve controlling mechanism.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figure 1, the utility model embodiment's guiding valve controlling mechanism comprises: guiding valve 60, one side end face of guiding valve 60 is provided with tapped hole, the threaded first end 51 of processing is screwed onto in the tapped hole of guiding valve 60 on the connecting rod 50, the sphere of activities for limiting rod 50, outer cover at connecting rod 50 is equipped with the sleeve 40 that uses as guiding element, is Spielpassung between sleeve 40 and the connecting rod 50, to guarantee that sleeve 40 can move along the axial direction of connecting rod 50; The installation groove 31 that matches with sleeve 40 is set on piston 30, piston 30 is sleeved on the second end 52 outsides of connecting rod 50, sleeve 40 is placed groove 31 is installed, and between the two Spielpassung, so just sleeve 40 is fixed between piston 30 and the guiding valve 60, is sleeved on connecting rod 50 outsides; Subsequently locking element nut 10 is screwed onto on the second end 52 of connecting rod 50, and fastening nut 10, nut 10 is pressed on the piston 30, in order to obtain better to compress effect, can also between nut 10 and piston 30, the locking auxiliary member be set, what the locking auxiliary member of present embodiment adopted is pressing plate 20, equally also can use compression spring.
In use, nut 10 is tightened, because sleeve 40, piston 30, pressing plate 20 and connecting rod 50 are Spielpassung, in the process that nut 10 is tightened, can compress sleeve 40, piston 30 and pressing plate 20 gradually, after compressing, make connecting rod 50 produce tensile buckling, eliminated the Screw Thread Fit Clearance between connecting rod 50 and the guiding valve 60, increased the frictional force between both screw threads, thereby prevented guiding valve 60 effectively because vibrations are connected with connecting rod 50 disengagements, improved guiding valve controlling mechanism reliability of operation.
The utility model also provides a kind of helical-lobe compressor with above-mentioned guiding valve controlling mechanism.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to guiding valve controlling mechanism of the present utility model, adopt the sphere of activities of 40 pairs of connecting rods 50 of sleeve to limit, by nut 10 sleeve 40, piston 30 and pressing plate 20 are compressed simultaneously, cause connecting rod 50 to produce tensile deformation, dwindled the thread pitch between the tapped hole of the first end 51 of connecting rod 50 and guiding valve 60, increase the frictional force between the two screw thread, prevented guiding valve 60 effectively, improved the reliability of guiding valve controlling mechanism because vibrations are connected with connecting rod 50 disengagements.
The helical-lobe compressor with above-mentioned guiding valve controlling mechanism that the utility model provides can be in operation and realize stable step-less adjustment.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. guiding valve controlling mechanism comprises:
Guiding valve (60), an end face of described guiding valve (60) is provided with tapped hole;
Connecting rod (50) has first end (51) and the second end (52) on the described connecting rod (50), described first end (51) and described the second end (52) are provided with screw thread, and described first end (51) is screwed onto in the tapped hole on the described guiding valve (60);
Piston (30) is sleeved on the second end (52) of described connecting rod (50);
It is characterized in that, also comprise:
Guiding element (40) is sleeved on the described connecting rod (50) between described guiding valve (60) and the described piston (30);
Locking element (10) is installed on the second end (52) of described connecting rod (50), and fits with described piston (30).
2. guiding valve controlling mechanism according to claim 1 is characterized in that, described guiding element (40) is a Spielpassung with described connecting rod (50).
3. guiding valve controlling mechanism according to claim 1 is characterized in that, described guiding element (40) fits near the end face of described guiding valve (60) one sides and the end face that described guiding valve (60) is provided with described tapped hole.
4. guiding valve controlling mechanism according to claim 1 is characterized in that, described piston (30) is provided with installs groove (31), and described guiding element (40) is installed in the described installation groove (31).
5. guiding valve controlling mechanism according to claim 4 is characterized in that, described guiding element (40) is a Spielpassung with the installation groove (31) of described piston (30).
6. according to each described guiding valve controlling mechanism in the claim 1 to 5, it is characterized in that described guiding element (40) is a sleeve.
7. guiding valve controlling mechanism according to claim 1 is characterized in that, described locking element (10) is a nut.
8. guiding valve controlling mechanism according to claim 1 is characterized in that, is provided with locking auxiliary member (20) between described locking element (10) and described piston (30).
9. guiding valve controlling mechanism according to claim 8 is characterized in that, described locking auxiliary member (20) is pressing plate or compression spring.
10. a helical-lobe compressor is characterized in that, comprises each described guiding valve controlling mechanism in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200228715U CN201908840U (en) | 2011-01-24 | 2011-01-24 | Slide valve regulation mechanism and screw compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200228715U CN201908840U (en) | 2011-01-24 | 2011-01-24 | Slide valve regulation mechanism and screw compressor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908840U true CN201908840U (en) | 2011-07-27 |
Family
ID=44301043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200228715U Expired - Lifetime CN201908840U (en) | 2011-01-24 | 2011-01-24 | Slide valve regulation mechanism and screw compressor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486037A (en) * | 2012-06-12 | 2014-01-01 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjusting mechanism, screw compressor and capacity adjusting method thereof |
| CN114198308A (en) * | 2021-12-06 | 2022-03-18 | 中国船舶重工集团公司第七0四研究所 | Marine adjustable-speed screw compressor function adjusting structure |
-
2011
- 2011-01-24 CN CN2011200228715U patent/CN201908840U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486037A (en) * | 2012-06-12 | 2014-01-01 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjusting mechanism, screw compressor and capacity adjusting method thereof |
| CN103486037B (en) * | 2012-06-12 | 2016-07-20 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjusting mechanism, screw compressor and capacity adjusting method thereof |
| CN114198308A (en) * | 2021-12-06 | 2022-03-18 | 中国船舶重工集团公司第七0四研究所 | Marine adjustable-speed screw compressor function adjusting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |
|
| CX01 | Expiry of patent term |