CN117028511B - Nut screw pair - Google Patents
Nut screw pair Download PDFInfo
- Publication number
- CN117028511B CN117028511B CN202311298708.5A CN202311298708A CN117028511B CN 117028511 B CN117028511 B CN 117028511B CN 202311298708 A CN202311298708 A CN 202311298708A CN 117028511 B CN117028511 B CN 117028511B
- Authority
- CN
- China
- Prior art keywords
- thread
- nut
- elastic
- pushing
- adjusting
- 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.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
Abstract
The application belongs to the technical field of mechanical transmission devices, and particularly relates to a nut screw pair. The nut screw pair comprises a screw, a main nut, an auxiliary nut and a pre-tightening mechanism, wherein a first thread is arranged on the screw, a second thread matched with the main nut is arranged on the inner wall surface of the auxiliary nut, a third thread is arranged on the outer peripheral surface of the auxiliary nut, the rotation direction of the third thread is opposite to that of the second thread, the lead of the third thread is larger than that of the second thread, and the adjusting assembly comprises a first adjusting ring, a second adjusting ring and a pushing fixing ring. When the device is used, the pretightening force can be finely adjusted only by rotating corresponding parts, and the device can be suitable for occasions with high pretightening force adjusting precision requirements.
Description
Technical Field
The application belongs to the technical field of mechanical transmission devices, and particularly relates to a nut screw pair.
Background
The ball screw pair is also called as a ball screw pair and a ball screw pair, and consists of a screw and a nut in a matching way, and the ball screw pair is a transmission device with higher precision in transmission machinery and is more common.
For mechanical equipment with higher requirements on motion precision, a high-precision ball screw pair is needed, and in the related technology, for example, chinese patent CN103174811A discloses a pretightening force fine-tuning ball screw nut, but the pretightening force adjustment precision of the ball screw nut is lower, and the ball screw nut cannot be suitable for occasions with higher requirements on pretightening force adjustment precision.
Disclosure of Invention
Based on this, it is necessary to provide a nut screw pair to solve the problem of low accuracy of adjusting the pretightening force of the ball screw nut in the prior art.
The above purpose is achieved by the following technical scheme:
a nut screw assembly comprising:
the screw rod is provided with a first thread;
the main nut is rotationally arranged on the screw rod;
the auxiliary nut is rotationally arranged on the screw rod, a second thread matched with the main nut is arranged on the inner wall surface of the auxiliary nut, a third thread is arranged on the outer peripheral surface of the auxiliary nut, the rotation direction of the third thread is opposite to that of the second thread, and the lead of the third thread is larger than that of the second thread;
the pre-tightening mechanism comprises an adjusting assembly and an elastic pushing assembly, the adjusting assembly is provided with a fourth thread meshed with the third thread, the elastic pushing assembly can generate elastic deformation along the axial direction of a screw rod, a first end of the elastic pushing assembly is fixedly connected with a main nut, a second end of the elastic pushing assembly is fixedly connected with the adjusting assembly, the adjusting assembly comprises a first adjusting ring, the fourth thread is arranged on the inner wall surface of the first adjusting ring, the adjusting assembly further comprises a second adjusting ring and a pushing fixed ring, a fifth thread is arranged on the outer peripheral surface of the first adjusting ring, a sixth thread meshed with the fifth thread is arranged on the inner wall surface of the second adjusting ring, a seventh thread meshed with the seventh thread is arranged on the outer peripheral surface of the second adjusting ring, the pushing fixed ring is fixedly connected with the elastic pushing assembly, the rotation direction of the seventh thread is opposite to the rotation direction of the sixth thread, the lead of the seventh thread is larger than that of the sixth thread, and the difference between the leads of the seventh thread and the sixth thread is smaller than the difference between the leads of the third thread and the second thread;
the auxiliary nut can drive the adjusting component to compress or stretch the elastic pushing component when rotating.
Further, the rotation direction of the seventh thread is the same as the rotation direction of the third thread.
Further, the elastic pushing assembly comprises an elastic bolt and a pushing nut, an elastic hollowed section is arranged on the elastic bolt, a first end of the elastic bolt is fixedly connected with the main nut, and a second end of the elastic bolt is fixedly connected with the pushing fixing ring through the pushing nut.
Further, the screw rod is provided with a through groove for accommodating the auxiliary nut, and the screw rod is fixedly connected with the main nut.
Further, an annular groove is formed in the end face, facing the second adjusting ring, of the carrying sleeve, an annular protruding block is arranged at one end, facing the carrying sleeve, of the second adjusting ring, and the annular protruding block can rotate in the annular groove and move along the axial direction of the annular groove.
Further, the elastic pushing assembly is uniformly distributed with a plurality of groups around the circumference of the pushing fixing ring, a plurality of bolt through holes are uniformly distributed on the pushing fixing ring and the carrying sleeve in the circumference, threaded holes corresponding to the bolt through holes are formed in the main nuts, the elastic bolts are arranged in the bolt through holes in a penetrating mode, the pushing nuts fix the first ends of the elastic bolts on the pushing fixing ring, and the second ends of the elastic bolts penetrate through the bolt through holes in the carrying sleeve and enter the threaded holes in the main nuts.
Further, an elastic hollowed section is arranged on the elastic bolt.
Further, a ball is disposed between the first thread and the second thread.
Further, an anti-slip pattern is provided on the outer peripheral surface of the sub nut.
Further, the difference between the lead of the third thread and the lead of the second thread is 0.5mm; the difference between the lead of the seventh thread and the lead of the sixth thread is 0.1mm.
The beneficial effects of the application are as follows:
when the nut screw pair is used, the nut of the pair is rotated, and the rotation direction of the third thread is opposite to that of the second thread, so that the lead of the third thread is larger than that of the second thread, when the pair nut rotates, the adjusting component can drive the adjusting component to compress the elastic pushing component, the elastic pushing component can apply a reaction force to the adjusting component after elastic deformation, and pretightening force can be generated between the pair nut and the main nut, so that the first-stage coarse adjustment of pretightening force can be realized only by rotating without disassembling;
when the adjustment precision of the pretightening force is required to be higher, after the coarse adjustment of the first stage, the second adjusting ring is rotated clockwise, because the rotation direction of the seventh thread on the second adjusting ring is opposite to that of the sixth thread, and the lead of the seventh thread is larger than that of the second thread, when the second adjusting ring rotates, the pushing fixing ring is close to the main nut, the elastic pushing component can be further compressed, and because the difference between the lead of the seventh thread and the lead of the sixth thread is smaller than that between the lead of the third thread and the lead of the second thread, under the condition that the rotation angle is the same, compared with the coarse adjustment of the first stage, the compression amount of the elastic pushing component is smaller, and therefore the change of the pretightening force is smaller, thereby the fine adjustment of the second stage of the pretightening force can be realized, and the situation with higher requirement on the adjustment precision of the pretightening force can be applicable.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of a nut screw pair of the present application;
FIG. 2 is an exploded view of the part of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of FIG. 1;
FIG. 5 is a partial enlarged view at B of FIG. 4;
wherein:
100. a screw rod; 200. a main nut; 300. a secondary nut; 310. an anti-skid pattern; 400. a carrying sleeve; 410. an annular groove; 510. a first adjusting ring; 520. a second adjusting ring; 522. a screwing section; 524. a threaded section; 526. a guide section; 530. pushing the fixing ring; 540. an elastic bolt; 542. an elastic hollow section; 550. pushing the nut.
Detailed Description
The present application will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
The nut screw pair of the present application will be described below with reference to the drawings and the detailed description.
Example 1 of a nut screw pair of the present application:
as shown in fig. 1 to 5, the nut screw pair of the present embodiment includes a screw 100, a main nut 200, an auxiliary nut 300, a carrier sleeve 400, and a pretensioning mechanism. The main nut 200 includes a cylindrical section and a supporting section, the supporting section is in a cuboid shape, the shape of the carrying sleeve 400 is similar to that of the main nut 200, the bottoms of the cuboid parts of the carrying sleeve 400 and the main nut are abutted together, and the end faces of the carrying sleeve and the main nut can be fixedly connected with other parts so as to drive the other parts to move, and the carrying sleeve is structurally different from the main nut 200 in that a through slot penetrating through the cylindrical section is formed in the cylindrical section of the carrying sleeve 400 and used for accommodating the auxiliary nut 300. The screw 100 is provided with a first thread, the auxiliary nut 300 is cylindrical, the inner wall surfaces of the main nut 200, the object carrying sleeve 400 and the auxiliary nut 300 are provided with a second thread, balls are arranged between the first thread and the second thread, and the transmission mode is the same as that of a ball screw transmission mechanism in the prior art, and is not repeated here. In other embodiments, the first thread may be directly engaged with the second thread without the balls.
The pretensioning mechanism includes an adjusting member and an elastic pushing member, the adjusting member includes a first adjusting ring 510, a second adjusting ring 520 and a pushing fixing ring 530, a third thread is provided on an outer circumferential surface of the sub-nut 300, an anti-slip pattern 310 is provided on the outer circumferential surface of the sub-nut 300 for facilitating adjustment of the sub-nut 300, an operator can pinch a portion of the anti-slip pattern 310 exposed from the through groove to screw the sub-nut 300, a fourth thread engaged with the third thread is provided on an inner wall surface of the first adjusting ring 510, wherein a rotation direction of the third thread is opposite to a rotation direction of the second thread, and a lead of the third thread is larger than a lead of the second thread, in this embodiment, a lead difference of the both is 0.5mm.
The second adjusting ring 520 comprises a screwing section 522, a thread section 524 and a guiding section 526, wherein the thread section 524 is located between the screwing section 522 and the guiding section 526, a groove which is convenient for an operator to operate is formed in the screwing section 522, an annular groove 410 is formed in the end face of the carrying sleeve 400, which faces the second adjusting ring 520, the guiding section 526 is an annular protruding block, the annular protruding block can rotate in the annular groove 410 and can move along the axial direction of the annular groove 410, a fifth thread is formed in the outer peripheral surface of the first adjusting ring 510, a sixth thread meshed with the fifth thread is formed in the inner wall surface of the thread section 524, a seventh thread is formed in the outer peripheral surface of the thread section 524, and an eighth thread meshed with the seventh thread is formed in the inner wall surface of the pushing fixing ring 530. Wherein the rotation direction of the seventh thread is opposite to the rotation direction of the sixth thread, the lead of the seventh thread is larger than the lead of the sixth thread, the lead difference between the rotation direction of the seventh thread and the rotation direction of the third thread is 0.1mm, namely, the difference between the lead of the seventh thread and the lead of the sixth thread is smaller than the difference between the lead of the third thread and the lead of the second thread.
The elastic pushing assembly comprises an elastic bolt 540 and a pushing nut 550, wherein a plurality of groups of bolt through holes are uniformly arranged around the circumference of the pushing fixed ring 530, a plurality of bolt through holes are uniformly arranged on the pushing fixed ring 530 and the carrying sleeve 400 in the circumferential direction, the threaded through holes are unthreaded holes, threads are not formed on the inner wall surface, a threaded hole corresponding to the bolt through holes is formed on the main nut 200, the elastic bolt 540 is arranged in the bolt through holes in a penetrating manner, the pushing nut 550 fixes the first end of the elastic bolt 540 on the pushing fixed ring 530, the second end of the elastic bolt 540 penetrates through the bolt through holes on the carrying sleeve 400 and enters the threaded holes on the main nut 200, and then the main nut 200 and the pushing fixed ring 530 are connected together by the bolts. In this embodiment, when the pushing fixing ring 530 receives a force in a direction approaching to the carrying sleeve 400, the pushing fixing ring 530 applies a force to the pushing nut 550, the pushing nut 550 applies a force to the elastic bolt 540 through threads, and the elastic bolt 540 is fixedly connected with the main nut 200, and the elastic bolt 540 is provided with the elastic hollowed section 542, so that the elastic bolt 540 is elastically deformed, and an elastic force is applied to the pushing fixing ring 530 through the pushing nut 550, and when the elastic force is transferred to the auxiliary nut 300, a pretightening force is generated between the main nut 200 and the auxiliary nut 300, and the pretightening force is a pretightening force that separates the main nut 200 and the auxiliary nut 300 from each other, so that pretightening of the nut screw pair of this embodiment can be realized.
The use process of the nut screw pair of the embodiment is as follows:
the nut screw pair of the present embodiment can realize two-stage adjustment, wherein the nut screw pair of the present embodiment realizes coarse adjustment of the first stage due to the threaded connection relationship between the screw 100, the sub-nut 300 and the first adjustment, and realizes fine adjustment of the second stage based on the coarse adjustment of the first stage due to the threaded connection relationship between the first adjusting ring 510, the second adjusting ring 520 and the pushing fixing ring 530.
Specifically, when the adjustment of the pretightening force is required, the sub-nut 300 is rotated clockwise, and since the rotation direction of the third thread on the sub-nut 300 is opposite to the rotation direction of the second thread, and the lead of the third thread is greater than the lead of the second thread, when the sub-nut 300 is rotated, the first adjusting ring 510 drives the pushing fixing ring 530 to approach the main nut 200, and the elastic bolt 540 is compressed, and an elastic force is applied to the pushing fixing ring 530 through the pushing nut 550, and when the elastic force is transferred to the sub-nut 300, the pretightening force is generated between the main nut 200 and the sub-nut 300, and the pretightening force is the pretightening force which separates the main nut 200 and the sub-nut 300 from each other. Of course, by rotating the sub-nut 300 counterclockwise, the elastic bolt 540 is stretched, and thus a pretension force for bringing the main nut 200 and the sub-nut 300 closer to each other can be generated.
If the adjustment accuracy of the pretightening force is required to be higher, after the coarse adjustment of the first stage, the second adjustment ring 520 is rotated clockwise, because the rotation direction of the seventh thread on the second adjustment ring 520 is opposite to that of the sixth thread, and the lead of the seventh thread is larger than that of the second thread, when the second adjustment ring 520 rotates, the push fixing ring 530 approaches the main nut 200, the elastic bolt 540 is further compressed, and because the difference between the lead of the seventh thread and the lead of the sixth thread is smaller than that between the lead of the third thread and the lead of the second thread, the compression amount of the elastic bolt 540 is smaller than that of the coarse adjustment of the first stage under the same rotation angle, and thus the change of the pretightening force is smaller, thereby being capable of realizing fine adjustment of the pretightening force, and being suitable for the occasion with higher requirement on the adjustment accuracy of the pretightening force.
Because the adjusting process does not need to be disassembled and only needs to be rotated, the adjusting process is more convenient, and the working efficiency is higher.
In addition, the nut screw pair of the embodiment adjusts the pretightening force through the lead difference between different threads, so that a screw member with ultra-small pitch is not needed, the strength of the threads is ensured, the screw member is not easy to damage, and the number of times of maintenance in the future is reduced. Meanwhile, since the sub-nut 300 is protected in the carrier sleeve 400, it is not easily damaged by the external environment and unexpected loosening is not easily occurred.
In other embodiments, the direction of rotation of the seventh thread is opposite to the direction of rotation of the third thread, such that after clockwise rotation of the secondary nut to make the coarse adjustment, counterclockwise rotation of the second adjustment ring is required to make the fine adjustment.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (7)
1. A nut screw pair, comprising:
the screw rod is provided with a first thread;
the main nut is rotationally arranged on the screw rod;
the auxiliary nut is rotationally arranged on the screw rod, a second thread matched with the first thread is arranged on the inner wall surface of the auxiliary nut, a third thread is arranged on the outer peripheral surface of the auxiliary nut, the rotation direction of the third thread is opposite to that of the second thread, and the lead of the third thread is larger than that of the second thread;
the pre-tightening mechanism comprises an adjusting assembly and an elastic pushing assembly, the adjusting assembly is provided with a fourth thread meshed with the third thread, the elastic pushing assembly can generate elastic deformation along the axial direction of a screw rod, a first end of the elastic pushing assembly is fixedly connected with a main nut, a second end of the elastic pushing assembly is fixedly connected with the adjusting assembly, the adjusting assembly comprises a first adjusting ring, the fourth thread is arranged on the inner wall surface of the first adjusting ring, the adjusting assembly further comprises a second adjusting ring and a pushing fixed ring, a fifth thread is arranged on the outer peripheral surface of the first adjusting ring, a sixth thread meshed with the fifth thread is arranged on the inner wall surface of the second adjusting ring, a seventh thread meshed with the seventh thread is arranged on the outer peripheral surface of the second adjusting ring, the pushing fixed ring is fixedly connected with the elastic pushing assembly, the rotation direction of the seventh thread is opposite to the rotation direction of the sixth thread, the lead of the seventh thread is larger than that of the sixth thread, and the difference between the leads of the seventh thread and the sixth thread is smaller than the difference between the leads of the third thread and the second thread;
the auxiliary nut can drive the adjusting component to compress or stretch the elastic pushing component when rotating;
the elastic pushing component comprises an elastic bolt and a pushing nut, an elastic hollowed section is arranged on the elastic bolt, a first end of the elastic bolt is fixedly connected with the main nut, and a second end of the elastic bolt is fixedly connected with the pushing fixing ring through the pushing nut;
the screw rod is fixedly connected with the main nut, and the screw rod is provided with a through groove for accommodating the auxiliary nut;
an annular groove is formed in the end face, facing the second adjusting ring, of the carrying sleeve, an annular protruding block is arranged at one end, facing the carrying sleeve, of the second adjusting ring, and the annular protruding block can rotate in the annular groove and move along the axial direction of the annular groove;
the cylindrical section part of the object carrying sleeve is provided with a through slot penetrating through the cylindrical section, and the through slot is used for accommodating the auxiliary nut;
a fourth thread meshed with the third thread is arranged on the inner wall surface of the first adjusting ring;
the second adjusting ring comprises a screwing section, a thread section and a guide section, wherein the thread section is positioned between the screwing section and the guide section, an annular groove is formed in the end face of the object carrying sleeve, which faces the second adjusting ring, and the guide section can rotate in the annular groove and can axially move along the annular groove.
2. The nut screw assembly according to claim 1, wherein the rotation direction of the seventh thread is the same as the rotation direction of the third thread.
3. The nut screw pair according to claim 1, wherein the elastic pushing assembly is uniformly arranged with a plurality of groups around the circumference of the pushing fixing ring, a plurality of bolt through holes are uniformly arranged on the pushing fixing ring and the carrying sleeve in the circumference, threaded holes corresponding to the bolt through holes are formed in the main nut, the elastic bolts are inserted into the bolt through holes, the pushing nut fixes the first ends of the elastic bolts on the pushing fixing ring, and the second ends of the elastic bolts are inserted into the threaded holes in the main nut through the bolt through holes in the carrying sleeve.
4. A nut screw assembly according to claim 3, characterized in that the elastic bolt is provided with an elastic hollow section.
5. The nut screw assembly as defined in claim 1, wherein balls are disposed between the first thread and the second thread.
6. The nut screw assembly as defined in claim 1, wherein the outer circumferential surface of the sub nut is provided with an anti-slip pattern.
7. The nut screw assembly according to claim 1, wherein the difference between the lead of the third thread and the lead of the second thread is 0.5mm; the difference between the lead of the seventh thread and the lead of the sixth thread is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298708.5A CN117028511B (en) | 2023-10-09 | 2023-10-09 | Nut screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298708.5A CN117028511B (en) | 2023-10-09 | 2023-10-09 | Nut screw pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117028511A CN117028511A (en) | 2023-11-10 |
| CN117028511B true CN117028511B (en) | 2023-12-15 |
Family
ID=88637586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311298708.5A Active CN117028511B (en) | 2023-10-09 | 2023-10-09 | Nut screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117028511B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174811A (en) * | 2013-01-22 | 2013-06-26 | 北京工业大学 | Pretightening force fine adjusting type ball screw nut |
| JP3220132U (en) * | 2018-12-04 | 2019-02-14 | 上銀科技股▲分▼有限公司 | Double nut ball screw for adjustable preload measurement |
| CN210566086U (en) * | 2019-09-17 | 2020-05-19 | 山东华准机械有限公司 | Novel structure capable of realizing pre-tightening of double nuts of ball screw |
| JP6868134B1 (en) * | 2020-02-10 | 2021-05-12 | 上銀科技股▲分▼有限公司 | Ball screw for immediate measurement and adjustment of preload |
| KR20210115088A (en) * | 2020-03-11 | 2021-09-27 | 하이윈 테크놀로지스 코포레이션 | Ball screw capable of measuring and adjusting preload in real time |
-
2023
- 2023-10-09 CN CN202311298708.5A patent/CN117028511B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174811A (en) * | 2013-01-22 | 2013-06-26 | 北京工业大学 | Pretightening force fine adjusting type ball screw nut |
| JP3220132U (en) * | 2018-12-04 | 2019-02-14 | 上銀科技股▲分▼有限公司 | Double nut ball screw for adjustable preload measurement |
| CN210566086U (en) * | 2019-09-17 | 2020-05-19 | 山东华准机械有限公司 | Novel structure capable of realizing pre-tightening of double nuts of ball screw |
| JP6868134B1 (en) * | 2020-02-10 | 2021-05-12 | 上銀科技股▲分▼有限公司 | Ball screw for immediate measurement and adjustment of preload |
| KR20210115088A (en) * | 2020-03-11 | 2021-09-27 | 하이윈 테크놀로지스 코포레이션 | Ball screw capable of measuring and adjusting preload in real time |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117028511A (en) | 2023-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3638507A (en) | Preloaded ball-bearing screw and nut mechanism | |
| US6142032A (en) | Adjustable anti-backlash nut assembly | |
| US20240110590A1 (en) | ANTI-ROTATION and ANTI-LOOSENING WASHER, FASTENING CONNECTION MECHANISM and FASTENING METHOD Thereof | |
| US8007142B2 (en) | Lamp with fastening device | |
| US4338037A (en) | Multiple jackscrew rod to crosshead mounting | |
| US6468011B2 (en) | Precision fastener assembly having a pre-compressed captive spring | |
| CN108561690B (en) | Product assembling structure adopting wedge block type flexible auxiliary supporting device | |
| CN110821966A (en) | Axial clearance adjusting device | |
| US20220266426A1 (en) | Socket Structure | |
| TWM575370U (en) | Torque socket | |
| US4092080A (en) | Anti-rotation lock for threaded connection | |
| CN117028511B (en) | Nut screw pair | |
| US20090249910A1 (en) | Lead screw device | |
| US20140126958A1 (en) | Locking mechanism | |
| US11045930B2 (en) | Non-ferrous fastener retention socket | |
| GB2568565A (en) | Precision positioning device | |
| CN112145527B (en) | Opposite-pulling locking mechanism | |
| CN109108634B (en) | Universal rotation stopping mechanism for workpiece screwing and main reduction gear rotation stopping screwing mechanism | |
| CN111022441A (en) | Locking power adjustable rotary motion locking mechanism | |
| GB2192035A (en) | Screw coupled connectors | |
| CN218488255U (en) | Mechanical clamping tool for screw assembly | |
| US11698107B2 (en) | Self-clamping torque adapter | |
| CN216312251U (en) | Plug with a locking mechanism | |
| CN110849390B (en) | Precision aiming adjusting device for optical alignment telescope | |
| CN216768043U (en) | Close-fitting bolt system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |