CN210566090U - Precision gap eliminating nut - Google Patents
Precision gap eliminating nut Download PDFInfo
- Publication number
- CN210566090U CN210566090U CN201921410392.3U CN201921410392U CN210566090U CN 210566090 U CN210566090 U CN 210566090U CN 201921410392 U CN201921410392 U CN 201921410392U CN 210566090 U CN210566090 U CN 210566090U
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- gap adjusting
- nut
- gap
- adjusting nut
- groove
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Abstract
A precision gap eliminating nut comprises a main nut, a wave spring, a gap adjusting nut and a limiting mechanism, wherein the main nut is provided with a gap adjusting groove, the gap adjusting groove is internally provided with a gap adjusting nut, the wave spring is arranged between the bottom of the gap adjusting groove and the gap adjusting nut, the gap adjusting nut is of a flange structure, one end of the gap adjusting nut is provided with a gear disc, the other end of the gap adjusting nut is embedded into the gap adjusting groove, the thread of the gap adjusting nut is consistent with the thread of the main nut, the outer edge of the gap adjusting groove is provided with the limiting mechanism, the limiting mechanism comprises a limiting block and a screw, at least one part of the limiting block is embedded into the tooth socket of the gear disc, the limiting block in the limiting mechanism is engaged with the tooth socket of the gear disc to limit through the matching of the limiting mechanism and the gear disc, the gap adjusting nut can be tightly adjusted, the wave spring is adopted, and is suitable for the transmission of, can be used in a compact space.
Description
Technical Field
The utility model relates to a screw drive field, concretely relates to accurate crack nut that disappears.
Background
In precision machinery, a screw-nut pair is a frequently used transmission and positioning mechanism, and a gap between a nut and a screw rod is often required to be eliminated to realize high-precision transmission and positioning. The common gap eliminating nut adopts a spiral spring or a torsion spring between two nuts, and the structure enables the axial size of the nut to be larger, so that the nut cannot be used in a compact space.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a precision gap eliminating nut, which comprises a main nut, a wave spring, a gap adjusting nut and a limiting mechanism, the main nut is provided with a gap adjusting groove, a gap adjusting nut is arranged in the gap adjusting groove, a wave spring is arranged between the bottom of the gap adjusting groove and the gap adjusting nut, the gap adjusting nut is of a flange structure, one end of the gap adjusting nut is provided with a gear disc, the other end of the gap adjusting nut is embedded into the gap adjusting groove, the thread of the gap adjusting nut is consistent with the thread of the main nut, the outer edge of the gap adjusting groove is provided with a limiting mechanism, the limiting mechanism comprises a limiting block and a screw, the limiting block is provided with a mounting seat, the mounting seat is provided with a mounting hole, the limiting block is arranged on the outer edge of the gap adjusting groove through a mounting hole in the mounting seat by the screw, and at least one part of the limiting block is embedded into the tooth groove of the gear disc.
Furthermore, at least one limiting mechanism is arranged, and the limiting mechanisms are uniformly distributed on the outer edge of the gap adjusting groove.
Furthermore, the part of the limiting block embedded into the tooth grooves of the gear disc is matched with the tooth grooves of the gear disc in shape.
Furthermore, the outer surface of the gear plate is provided with an adjusting handle.
Further, the number of the mounting holes on the mounting seat is set to be two.
Further, the number of the screws is matched with the number of the mounting holes, and the number of the screws is two.
The beneficial effects of the utility model reside in that: through stop gear and toothed disc cooperation will stop gear in the stop gear with the tooth's socket meshing of toothed disc carries out spacingly, can realize closely adjusting transfer the clearance nut eliminates the clearance between lead screw shaft screw thread and the clearance nut screw that disappears, has adopted wave spring wherein, is applicable to the transmission of little screw pitch lead screw nut, can use in compact space.
Drawings
FIG. 1 is a side sectional view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the structure of the position limiting block of the present invention;
description of reference numerals: the adjustable gap device comprises a main nut 1, a gap adjusting groove 11, a wave spring 2, a gap adjusting nut 3, a gear disc 31, an adjusting handle 32, a limiting block 4, an installation seat 41, an installation hole 42 and a screw 43.
Detailed Description
The utility model provides a precision gap eliminating nut, which will be further explained with reference to the accompanying drawings, and comprises a main nut 1, a wave spring 2, a gap adjusting nut 3 and a limiting mechanism, wherein the main nut 1 is provided with a gap adjusting groove 11, the gap adjusting nut 3 is arranged in the gap adjusting groove 11, the wave spring 2 is arranged between the bottom of the gap adjusting groove 11 and the gap adjusting nut 3, the gap adjusting nut 3 is of a flange structure, one end of the gap adjusting nut 3 is provided with a gear plate 31, the other end of the gap adjusting nut is embedded in the gap adjusting groove 11, the thread of the gap adjusting nut 3 is consistent with the thread of the main nut 1, the outer edge of the gap adjusting groove 11 is provided with the limiting mechanism, the limiting mechanism comprises a limiting block 4 and a screw 43, the limiting block 4 is provided with a mounting seat 41, the mounting hole 42 is arranged on the mounting seat 41, the screw 43 installs the limiting block 4 on the outer edge of the gap adjusting groove 11 through the mounting hole 42 on the mounting seat 41, at least a part of the limiting block 4 is embedded into the tooth grooves of the gear disc 31.
Furthermore, at least one limiting mechanism is arranged, and the limiting mechanisms are uniformly distributed on the outer edge of the gap adjusting groove 11 and can more stably limit the gap adjusting nut 3.
Further, the part of the limiting block 4 embedded in the tooth groove of the gear disc 31 is matched with the tooth groove of the gear disc 31 in shape, so that the looseness of the gap adjusting nut 3 caused by the gap between the tooth groove and the limiting block 4 is prevented.
Furthermore, the outer surface of the gear plate 31 is provided with an adjusting handle 32, which plays a role of borrowing force when adjusting the gap adjusting nut 3, so as to adjust the gap adjusting nut 3 conveniently.
Further, the number of the mounting holes 42 on the mounting seat 41 is two, and the number of the screws 43 is matched with the number of the mounting holes 42 and is two, so that the rotation of the limiting block 4 is prevented, and the use effect is prevented from being influenced.
In particular use: the wave spring 2 is placed at the bottom of the clearance adjusting groove 11, the clearance adjusting nut 3 is embedded into the clearance adjusting groove 11, then the screw shaft is screwed in, the clearance adjusting nut 3 is adjusted to a proper position through the adjusting handle 32, the embedded part of the limiting block 4 is embedded into the tooth groove of the gear disc 31 when no clearance exists between the clearance adjusting nut and the screw shaft thread, and then the screw 43 is screwed into the mounting hole 42 of the mounting seat 41 on the limiting block 4, so that the purposes of fixing the limiting mechanism and limiting the clearance eliminating nut are achieved.
Claims (6)
1. The precision gap eliminating nut is characterized by comprising a main nut (1), a wave spring (2), a gap adjusting nut (3) and a limiting mechanism, wherein the main nut (1) is provided with a gap adjusting groove (11), the gap adjusting nut (3) is arranged in the gap adjusting groove (11), the wave spring (2) is arranged between the bottom of the gap adjusting groove (11) and the gap adjusting nut (3), the gap adjusting nut (3) is of a flange structure, one end of the gap adjusting nut (3) is provided with a gear disc (31), the other end of the gap adjusting nut is embedded into the gap adjusting groove (11), the thread of the gap adjusting nut (3) is consistent with the thread of the main nut (1), the limiting mechanism is arranged on the outer edge of the gap adjusting groove (11) and comprises a limiting block (4) and a screw (43), the limiting block (4) is provided with a mounting seat (41), and the mounting seat (41) is provided with a mounting hole (42), the limiting block (4) is installed on the outer edge of the gap adjusting groove (11) through an installation hole (42) in the installation seat (41) by the screw (43), and at least one part of the limiting block (4) is embedded into a tooth groove of the gear disc (31).
2. The precision gap eliminating nut as claimed in claim 1, wherein there is at least one limiting mechanism, and the limiting mechanisms are uniformly distributed on the outer edge of the gap adjusting groove (11).
3. The precision anti-backlash nut as claimed in claim 1, wherein the portion of said stop block (4) embedded in the tooth grooves of said gear plate (31) matches the shape of the tooth grooves of said gear plate (31).
4. A precision anti-backlash nut according to claim 1, wherein said gear disc (31) is provided with an adjusting knob (32) on its outer surface.
5. A precision anti-backlash nut according to claim 1, wherein the number of said mounting holes (42) in said mounting seat (41) is two.
6. A precision anti-backlash nut according to claim 4, wherein said number of screws (43) is matched to the number of said mounting holes (42) and is provided in two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921410392.3U CN210566090U (en) | 2019-08-28 | 2019-08-28 | Precision gap eliminating nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921410392.3U CN210566090U (en) | 2019-08-28 | 2019-08-28 | Precision gap eliminating nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566090U true CN210566090U (en) | 2020-05-19 |
Family
ID=70641984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921410392.3U Active CN210566090U (en) | 2019-08-28 | 2019-08-28 | Precision gap eliminating nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310866A (en) * | 2022-03-10 | 2022-04-12 | 珞石（北京）科技有限公司 | Robot joint and method for adjusting gear backlash between joints |
-
2019
- 2019-08-28 CN CN201921410392.3U patent/CN210566090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310866A (en) * | 2022-03-10 | 2022-04-12 | 珞石（北京）科技有限公司 | Robot joint and method for adjusting gear backlash between joints |
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