CN213298729U - Adjustable anti-fracture screw nut structure - Google Patents
Adjustable anti-fracture screw nut structure Download PDFInfo
- Publication number
- CN213298729U CN213298729U CN202021902789.7U CN202021902789U CN213298729U CN 213298729 U CN213298729 U CN 213298729U CN 202021902789 U CN202021902789 U CN 202021902789U CN 213298729 U CN213298729 U CN 213298729U
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- Prior art keywords
- nut
- screw
- fixed
- fixing
- circumferential side
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- Expired - Fee Related
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- 230000002968 anti-fracture Effects 0.000 title claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 5
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical field of the feed screw nut technique and specifically relates to an adjustable anti-fracture feed screw nut structure, including first nut and second nut, common screw thread just runs through on first nut and the second nut and installs the lead screw, equal coaxial fixed cover on the circumference side of the one end that first nut and second nut are close to each other is equipped with nut seat, two the equidistance just runs through the screw thread and installs the bolt on the nut seat, all fixed being equipped with and the corresponding fixed plate of bolt on first nut and the second nut, the bolt runs through and the screw thread is installed on the fixed plate, threaded installation has third nut and fourth nut respectively on the bolt, the third nut sets up between two nut seats, and the nut seat side on third nut side and the first nut contacts. The utility model discloses can reduce the screw to the rotation moment of torsion of first nut and second nut, and then avoid rotation moment of torsion to make the axial terminal surface of first nut or second nut the condition that crackle appears.
Description
Technical Field
The utility model relates to a screw-nut technical field especially relates to an adjustable screw-nut structure of preventing splitting.
Background
Ball screw comprises lead screw and nut jointly, is common transmission structure, is used for turning into linear motion's occasion with rotary motion more, and ball screw is when using, and lead screw drive nut moves on the lead screw, and the nut on the current ball screw does not have the function of preventing splitting, and ball screw uses the back for a long time, and the lead screw rotates the whole effects of the rotatory moment of torsion that produces on the nut, and the rotatory moment of torsion makes the axial terminal surface of nut crackle easily appear.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that the nut on the ball screw that exists among the prior art does not have the function of preventing splitting, and the adjustable screw-nut structure of preventing splitting that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
designing an adjustable anti-fracture feed screw nut structure, which comprises a first nut and a second nut, wherein a feed screw is arranged on the first nut and the second nut in a threaded manner, nut seats are fixedly sleeved with the same axle center on the circumferential side surface of one end, close to each other, of the first nut and the second nut, bolts are arranged on the two nut seats in an equidistant manner in a threaded manner, fixing plates corresponding to the bolts are fixedly arranged on the first nut and the second nut, the bolts are arranged on the fixing plates in a threaded manner in a penetrating manner, a third nut and a fourth nut are respectively arranged on the bolts in a threaded manner, the third nut is arranged between the two nut seats, the side surface of the third nut is contacted with the side surface of the nut seat on the first nut, the side surface of the fourth nut is contacted with the side surface of the fixing plate on the second nut, and fixing rings are fixedly arranged on the two opposite side surfaces of the nut seats in a coaxial manner, and one end of the fixing plate, which is far away from the screw rod, is fixed on the inner circumferential side wall of the fixing ring.
Preferably, the first nut and the second nut are both fixedly provided with reinforcing blocks corresponding to the fixing plate, and the reinforcing blocks are fixed on the fixing plate.
Preferably, the nut seats on the inner side and the outer side of the fixing ring are respectively and coaxially and fixedly provided with a first reinforcing ring and a second reinforcing ring, the inner circumferential side wall of the first reinforcing ring is fixed on the outer circumferential side wall of the fixing ring, and the outer circumferential side wall of the second reinforcing ring is fixed on the inner circumferential side wall of the fixing ring.
Preferably, the lead screw is fixed on the surface and is equipped with the inoxidizing coating, the inoxidizing coating includes interior basic unit, metal level and wearing layer, the metal level is fixed between interior basic unit and the wearing layer, and interior basic unit fixes on the surface of lead screw.
The utility model provides an adjustable screw-nut structure of preventing splitting, beneficial effect lies in: this adjustable prevent feed screw nut structure that splits is when using, through mutually supporting of bolt and third nut and fourth nut, conveniently adjust the distance between first nut and the second nut, and the nut seat, solid fixed ring, the fixed plate, the bolt, the rotational torque that the lead screw produced can all be shared to first nut and second nut, and then can reduce the rotational torque of lead screw to first nut and second nut, and then avoid the rotational torque to make the axial terminal surface of first nut or second nut the condition that crackle appears.
Drawings
Fig. 1 is a schematic structural view of an adjustable anti-fracture screw nut structure provided by the present invention;
fig. 2 is an enlarged view of a position a in fig. 1 of an adjustable anti-fracture screw nut structure according to the present invention;
fig. 3 is a right side view of the adjustable anti-fracture screw nut structure provided by the utility model.
In the figure: the nut fixing device comprises a first nut 1, a second nut 2, a nut seat 3, a fixing ring 4, a fixing plate 5, a first reinforcing ring 6, a second reinforcing ring 7, a bolt 8, a third nut 9, a fourth nut 10, a reinforcing block 11, a lead screw 12, an inner base layer 13, a metal layer 14 and a wear-resistant layer 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
Referring to fig. 1-3, an adjustable anti-fracture feed screw nut structure comprises a first nut 1 and a second nut 2, a feed screw 12 is installed on the first nut 1 and the second nut 2 in a common threaded manner in a penetrating manner, nut seats 3 are fixedly sleeved on the circumferential side face of one end, close to each other, of the first nut 1 and the second nut 2 coaxially, bolts 8 are installed on the two nut seats 3 in an equidistant manner in a penetrating manner, fixing plates 5 corresponding to the bolts 8 are fixedly arranged on the first nut 1 and the second nut 2, reinforcing blocks 11 corresponding to the fixing plates 5 are fixedly arranged on the first nut 1 and the second nut 2, the reinforcing blocks 11 are fixed on the fixing plates 5, the fixing area between the fixing plates 5 and the first nut 1 or the second nut 2 can be effectively increased through the reinforcing blocks 11, and the firmness of the fixed connection between the fixing plates 5 and the first nut 1 or the second nut 2 is increased.
A bolt 8 penetrates through and is arranged on the fixing plate 5 in a threaded manner, a third nut 9 and a fourth nut 10 are respectively arranged on the bolt 8 in a threaded manner, the third nut 9 is arranged between the two nut seats 3, the side surface of the third nut 9 is contacted with the side surface of the nut seat 3 on the first nut 1, the side surface of the fourth nut 10 is contacted with the side surface of the fixing plate 5 on the second nut 2, the opposite side surfaces of the two nut seats 3 are fixedly provided with fixing rings 4 with the same axle center, and one end of the fixing plate 5 far away from the screw rod 12 is fixed on the inner circumferential side wall of the fixing ring 4, the nut seats 3 on the inner side and the outer side of the fixing ring 4 are respectively and coaxially and fixedly provided with a first reinforcing ring 6 and a second reinforcing ring 7, and the inner circumferential side wall of the first reinforcing ring 6 is fixed to the outer circumferential side wall of the fixing ring 4, and the outer circumferential side wall of the second reinforcing ring 7 is fixed to the inner circumferential side wall of the fixing ring 4. The second reinforcing ring 7 and the first reinforcing ring 6 can effectively increase the fixing area between the fixing ring 4 and the nut seat 3 and increase the firmness of the fixed connection between the fixing ring 4 and the nut seat 3.
This adjustable prevent feed screw nut structure that splits when using, through mutually supporting of bolt 8 and third nut 9 and fourth nut 10, conveniently adjust the distance between first nut 1 and the second nut 2, and nut seat 3, solid fixed ring 4, fixed plate 5, bolt 8, the rotational torque that lead screw 12 produced can all be shared to first nut 1 and second nut 2, and then can reduce the rotational torque of lead screw 12 to first nut 1 and second nut 2, and then avoid the rotational torque to make the condition that crackle appears in the axial terminal surface of first nut 1 or second nut 2.
Example 2
In embodiment 1, the surface of the lead screw 12 is not provided with a protective layer, the first nut 1 and the second nut 2 easily wear the surface of the lead screw 12 when rotating on the lead screw 12, and damage to the surface of the lead screw 12 is easily caused, referring to fig. 1 and 2, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the lead screw 12 is fixedly provided with the protective layer on the surface, the protective layer comprises an inner base layer 13, a metal layer 14 and a wear layer 15, the lead screw 12 is placed in a high temperature argon environment for ion-doped nitrogen treatment, so that a nitrided layer is attached to the outer surface of the lead screw 12, the inner base layer 13 is the nitrided layer, the nitrided layer can make the surface of the lead screw 12 have excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance, the metal layer 14 is fixed between the inner base layer 13 and the wear layer 15, and the inner base layer 13 is fixed on the surface of the lead, the metal layer 14 is made of a chromium metal material, and the wear-resistant layer 15 is made of a mixed material of chromium nitride and carbon nitride. The metal layer 14 and the wear-resistant layer 15 can effectively improve the wear-resistant and corrosion-resistant properties of the lead screw 12 and prolong the service life of the lead screw 12.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The adjustable anti-fracture feed screw nut structure is characterized by comprising a first nut (1) and a second nut (2), wherein a common thread is arranged on the first nut (1) and the second nut (2) and a feed screw (12) is installed in a penetrating manner, nut seats (3) are fixedly sleeved on the circumferential side face of one end, close to each other, of the first nut (1) and the second nut (2) coaxially, bolts (8) are installed on the two nut seats (3) equidistantly and in a penetrating manner through the threads, fixing plates (5) corresponding to the bolts (8) are fixedly arranged on the first nut (1) and the second nut (2), the bolts (8) are installed on the fixing plates (5) in a penetrating manner and in a threaded manner, a third nut (9) and a fourth nut (10) are installed on the bolts (8) in a threaded manner respectively, the third nut (9) is arranged between the two nut seats (3), and the side of the third nut (9) contacts with the side of the nut seat (3) on the first nut (1), the side of the fourth nut (10) contacts with the side of the fixing plate (5) on the second nut (2), two fixing rings (4) are fixedly arranged on the side of the nut seat (3) opposite to each other with the same axle center, and one end of the fixing plate (5) far away from the screw rod (12) is fixed on the inner circumferential side wall of the fixing ring (4).
2. The adjustable anti-breakage screw nut structure according to claim 1, wherein a reinforcing block (11) corresponding to the fixing plate (5) is fixedly arranged on each of the first nut (1) and the second nut (2), and the reinforcing block (11) is fixed on the fixing plate (5).
3. The adjustable anti-breakage feed screw nut structure according to claim 1, characterized in that a first reinforcing ring (6) and a second reinforcing ring (7) are coaxially fixed on the nut seats (3) on the inner side and the outer side of the fixing ring (4), respectively, and the inner circumferential side wall of the first reinforcing ring (6) is fixed on the outer circumferential side wall of the fixing ring (4), and the outer circumferential side wall of the second reinforcing ring (7) is fixed on the inner circumferential side wall of the fixing ring (4).
4. The adjustable anti-breakage screw nut structure according to claim 1, wherein the screw (12) is fixedly provided with a protective layer on the surface, the protective layer comprises an inner base layer (13), a metal layer (14) and a wear-resistant layer (15), the metal layer (14) is fixed between the inner base layer (13) and the wear-resistant layer (15), and the inner base layer (13) is fixed on the surface of the screw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021902789.7U CN213298729U (en) | 2020-09-03 | 2020-09-03 | Adjustable anti-fracture screw nut structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021902789.7U CN213298729U (en) | 2020-09-03 | 2020-09-03 | Adjustable anti-fracture screw nut structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213298729U true CN213298729U (en) | 2021-05-28 |
Family
ID=76028856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021902789.7U Expired - Fee Related CN213298729U (en) | 2020-09-03 | 2020-09-03 | Adjustable anti-fracture screw nut structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213298729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236729A (en) * | 2021-06-02 | 2021-08-10 | 丽水市鑫地轴承有限公司 | High-strength ball screw |
-
2020
- 2020-09-03 CN CN202021902789.7U patent/CN213298729U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236729A (en) * | 2021-06-02 | 2021-08-10 | 丽水市鑫地轴承有限公司 | High-strength ball screw |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210528 |
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| CF01 | Termination of patent right due to non-payment of annual fee |