CN203570996U - Mechanism for fine adjustment of axial clearances - Google Patents
Mechanism for fine adjustment of axial clearances Download PDFInfo
- Publication number
- CN203570996U CN203570996U CN201320600488.2U CN201320600488U CN203570996U CN 203570996 U CN203570996 U CN 203570996U CN 201320600488 U CN201320600488 U CN 201320600488U CN 203570996 U CN203570996 U CN 203570996U
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- rotating
- wide radial
- rotation stopping
- rotating disc
- axial clearance
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Abstract
A mechanism for fine adjustment of axial clearances comprises a fixed disc, a rotating disc, an elastic gasket and rotating stop screws, wherein the fixed disc, the rotating disc, the elastic gasket and the rotating stop screws are connected with a machine body. The rotating disc and the fixed disc are in screw thread fit, rotating stop screw holes which are evenly distributed in the circumferential direction are formed in the fixed disc, wide radial grooves which are evenly distributed are formed in the flange edge of the rotating disc, the center of a circle of the circumference defined by the rotating stop screw holes and the center of a circle of the circumference defined by the wide radial grooves are located in the same point, the diameter of the circumference defined by the rotating stop screw holes is the same as the diameter of the circumference defined by the wide radial grooves, and the number of the wide radial grooves is one more than the number of the rotating stop screw holes. The mechanism for fine adjustment of the axial clearances can solve the problem of the contradiction between high positional precision, the axial position adjustable function and the assembly process needed in an existing mechanical structure, and high-precision axial clearance adjustment is achieved while concentricity and parallelism of parts are guaranteed without repeatedly demounting and mounting the parts and massively repeatedly manufacturing spare parts.
Description
Technical field
The utility model relates to a kind of structure for axial clearance fine setting, and its axial clearance that belongs to axial workpiece is adjusted field.
Background technique
The adjusting method of existing axial clearance mainly contains following several: (1) is changed and manufactured part: according to certain size series, manufacture identical part, then according to the suitable part of required gap length preferred dimension, install; (2) change pad: according to certain size series, manufacture the pad (metal or other materials) of different-thickness, then according to required gap length, select suitable pad or use a plurality of pads simultaneously; (3) gap adjustment screws: the screw parallel with axis is installed in the fitting surface with axially vertical, and another fitting surface is atresia, adjusting screw is stretched out the length of fitting surface and is adjusted the gap of fitting surface, and then changes axial clearance; (4) with chock, regulate: in the matching gap of vertical axial, squeeze into chock, by the degree of depth of squeezing into, change gap.
Yet all there are various defects in the adjusting method of above-mentioned mentioned axial clearance: (1) is changed and manufactured part: same part need to be manufactured several, finally only have one can install, and during adjusting play, part need to be disassembled to replacing, time-consuming, cost is higher; (2) change pad: pad is than the low cost of manufacture of part, but the thinner difficulty of processing of pad is higher, and the thickness size precision of pad is also relatively difficult to ensure card, changing in addition pad still needs part to disassemble completely; (3) gap adjustment screws: screw is easy to adjust fast, do not need to dismantle part, but cannot guarantee to be conditioned the concentricity of part and the parallelism of axis, and there is loosening problem in screw self, and therefore can only be in the mechanically use lower to required precision; (4) with chock, regulate---without dismounting part, but the extruding force of chock can cause part crooked, mobile, so ratio of precision screw regulates lower.
Therefore, the necessary deficiency of prior art being improved to solve prior art.
Summary of the invention
The utility model provides a kind of mechanism for axial clearance fine setting, and the impeller of the fluid machineries such as its axial clearance adjustment for axial workpiece and blower, ventilator and pump and the gap between housing are adjusted.
The utility model adopts following technological scheme: a kind of mechanism for axial clearance fine setting, it comprises the fixed tray being connected with body, rotating disc, resilient pad and rotation stopping screw, it between described rotating disc and fixed tray, is screw-thread fit, described fixed tray is provided with along the circumferential direction equally distributed rotation stopping screw hole, described rotating disc flange edge is provided with equally distributed wide radial groove, the center of circle of described rotation stopping screw circumference that hole surrounds and the center of circle of circumference that described wide radial groove surrounds are same point, the diameter of described rotation stopping screw circumference that hole surrounds is identical with the diameter of circumference that described wide radial groove surrounds, the number in the number of described wide radial groove and described rotation stopping screw hole differs one.
Described rotation stopping screw is installed in the rotation stopping screw hole and wide radial groove after rotation overlaps.
Described resilient pad is arranged between described fixed tray and the flange edge of rotating disc.
Described resilient pad is tetrafluoro, rubber or metallic material.
The utlity model has following beneficial effect: the utility model for the mechanism of axial clearance fine setting, can solve that existing machinery structure needs higher position precision, axial position is adjustable and assembly technology between contradiction, when guaranteeing part concentricity, parallelism, provide high-precision axial clearance adjustment, and do not needed repeated disassembled and assembled part, do not need to repeat in a large number to manufacture spare part.
Accompanying drawing explanation
Fig. 1 is that the utility model is for the generalized section of the mechanism of axial clearance fine setting.
Fig. 2 is that the utility model is for the generalized section of the fixed tray of the mechanism of axial clearance fine setting.
Fig. 3 is another schematic diagram of fixed tray shown in Fig. 2.
Fig. 4 is that the utility model is for the generalized section of the rotating disc of the mechanism of axial clearance fine setting.
Fig. 5 is another schematic diagram of rotating disc shown in Fig. 4.
Fig. 6 is that the utility model is for the generalized section of the resilient pad of the mechanism of axial clearance fine setting.
Embodiment
Please refer to shown in Fig. 1 to Fig. 6, the utility model comprises fixed tray 1, rotating disc 2, resilient pad 3 and rotation stopping screw 4 for the mechanism of axial clearance fine setting.
Fixed tray 1 is connected with body (not shown), between rotating disc 2 and fixed tray 1, is the screw-thread fit of the pitch of specific range length.On fixed tray 1, have along the circumferential direction equally distributed 8 M3 rotation stopping screw holes 10, on rotating disc 2 flange edges, there is the wide radial groove 20 of 9 equally distributed wide 3mm at same diameter place.The center of circle of rotation stopping screw hole 10 circumference that surrounds and the center of circle of described wide radial groove 20 circumference that surrounds are same point, the diameter of rotation stopping screw hole 10 circumference that surrounds is identical with the diameter of wide radial groove 20 circumference that surrounds, as needs, other regulate stride, can obtain by changing the quantity of hole and groove.
For guaranteeing that gap can not change, we screw in rotation stopping screw 4 in the rotation stopping screw hole overlapping, can guarantee that part there will not be relative rotation, simultaneously between part flange edge with resilient pad 3(as Tetrafluoro spacer or rubber sheet gasket) make screw thread in pure stress, can eliminate the impact of thread pitch.
The utility model is identical with the principle of measurement of micrometer for the working principle of mechanism of axial clearance fine setting, is all to utilize screw thread that axial micro-displacement is zoomed into circumferential larger displacement, utilizes scale that this displacement is accurately measured simultaneously.
On two parts of screw-thread fit, be all designed with flange edge, and be evenly equipped with respectively rotation stopping screw hole and radial groove on the position of same diameter, uniform hole, groove quantity on two parts are respectively N and N+1.Only may there be pair of holes (groove) in this mechanism at one time in coincidence status, and by part clockwise or be rotated counterclockwise
during circle, former coincidence hole (groove) no longer overlaps, and adjacent hole (groove) is in coincidence status.Now the location variation to axial of two parts is pitch
doubly.As adopt the screw-thread fit of 1mm pitch, and the quantity of hole (groove) is respectively 8 and 9, and regulating stride is 0.014mm; As adopting the screw-thread fit of 0.5mm pitch, the quantity of hole (groove) is respectively 21 and 22, regulates stride can reach 0.0011mm.
Therefore, the utility model is compared to clearance adjustment method with plain shaft for the mechanism of axial clearance fine setting, and the adjusting stride of this mechanism is less, and without repeated disassembled and assembled renewal part, spare part quantity and the man-hour of adjusting play have all reduced greatly.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, under the prerequisite that does not depart from the utility model principle, can also make some improvement, these improvement also should be considered as protection domain of the present utility model.
Claims (4)
1. the mechanism for axial clearance fine setting, it comprises the fixed tray (1) being connected with body, rotating disc (2), resilient pad (3) and rotation stopping screw (4), it is characterized in that: between described rotating disc (2) and fixed tray (1), be screw-thread fit, described fixed tray (1) is provided with along the circumferential direction equally distributed rotation stopping screw hole (10), described rotating disc (2) flange edge is provided with equally distributed wide radial groove (20), the center of circle of described rotation stopping screw hole (10) circumference that surrounds and the center of circle of described wide radial groove (20) circumference that surrounds are same point, the diameter of described rotation stopping screw hole (10) circumference that surrounds is identical with the diameter of described wide radial groove (20) circumference that surrounds, the number in the number of described wide radial groove (20) and described rotation stopping screw hole (10) differs one.
2. a kind of mechanism for axial clearance fine setting as claimed in claim 1, is characterized in that: described rotation stopping screw (4) is installed in the rotation stopping screw hole (10) and wide radial groove (20) after rotation overlaps.
3. a kind of mechanism for axial clearance fine setting as claimed in claim 2, is characterized in that: described resilient pad (3) is arranged between described fixed tray (1) and the flange edge of rotating disc (2).
4. a kind of mechanism for axial clearance fine setting as claimed in claim 3, is characterized in that: described resilient pad (3) is tetrafluoro, rubber or metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600488.2U CN203570996U (en) | 2013-09-27 | 2013-09-27 | Mechanism for fine adjustment of axial clearances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600488.2U CN203570996U (en) | 2013-09-27 | 2013-09-27 | Mechanism for fine adjustment of axial clearances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570996U true CN203570996U (en) | 2014-04-30 |
Family
ID=50538728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600488.2U Withdrawn - After Issue CN203570996U (en) | 2013-09-27 | 2013-09-27 | Mechanism for fine adjustment of axial clearances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570996U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486230A (en) * | 2013-09-27 | 2014-01-01 | 南京磁谷科技有限公司 | Mechanism for fine adjustment of axial clearance |
| CN109530594A (en) * | 2018-12-29 | 2019-03-29 | 武汉新威奇科技有限公司 | The driving screw axial clearance adjusting mechanism of fly press |
-
2013
- 2013-09-27 CN CN201320600488.2U patent/CN203570996U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486230A (en) * | 2013-09-27 | 2014-01-01 | 南京磁谷科技有限公司 | Mechanism for fine adjustment of axial clearance |
| CN103486230B (en) * | 2013-09-27 | 2015-12-09 | 南京磁谷科技有限公司 | A kind of mechanism for fine adjustment of axial clearance |
| CN109530594A (en) * | 2018-12-29 | 2019-03-29 | 武汉新威奇科技有限公司 | The driving screw axial clearance adjusting mechanism of fly press |
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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: 20140430 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |