CN113374847A - Novel roller screw rod transmission device and using method thereof - Google Patents
Novel roller screw rod transmission device and using method thereof Download PDFInfo
- Publication number
- CN113374847A CN113374847A CN202110673243.1A CN202110673243A CN113374847A CN 113374847 A CN113374847 A CN 113374847A CN 202110673243 A CN202110673243 A CN 202110673243A CN 113374847 A CN113374847 A CN 113374847A
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- CN
- China
- Prior art keywords
- screw
- commutator
- screw rod
- screw nut
- nut
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- 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.)
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Classifications
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- 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
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2266—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers arranged substantially in parallel to the screw shaft axis
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- 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
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
-
- 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
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H2025/2271—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers with means for guiding circulating rollers
Abstract
The invention provides a novel roller screw rod transmission device and a using method thereof, and relates to the technical field of mechanical transmission parts. The roller screw rod transmission device comprises a mounting seat, first thread grooves which are uniformly distributed are fixedly connected to the outer diameter of the periphery of a screw rod, second thread grooves which are uniformly distributed are fixedly connected to the inner wall of the periphery of a screw nut, a front commutator and a rear commutator are respectively arranged at the middle positions of the right rear end and the left front end of the screw nut, and tapered rollers which are uniformly distributed are slidably connected in the second thread grooves. The screw rod rotates to drive the screw nut to move forwards on the screw rod through the first thread groove and the second thread groove, and simultaneously, the tapered roller is driven to circulate in an internal circulation closed loop formed by the screw rod, the screw nut, the front commutator and the rear commutator, so that the screw nut makes relative motion with respect to the screw rod, the contact area between the screw nut and the screw rod is increased by taking the tapered roller as a transmission medium, the screw nut bears larger axial thrust, and the screw nut is worth of being widely popularized.
Description
Technical Field
The invention relates to the technical field of mechanical transmission parts, in particular to a novel roller screw rod transmission device and a using method thereof.
Background
The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, has the characteristics of high precision, reversibility and high efficiency, and is widely applied to various industrial equipment and precision instruments due to small friction resistance.
At present, in the existing ball screw transmission device, the contact area between a nut and a screw shaft is small, the axial thrust is weak, the transmission effect is not good, and the operation is inconvenient when the ball screw transmission device is detached for maintenance.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a novel roller screw transmission device and a using method thereof, and solves the problem that the traditional ball screw is weak in axial thrust.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a novel roller screw rod transmission device comprises a mounting seat, a screw rod is fixedly connected to the left side of the mounting seat, the outer diameter of the periphery of the screw rod is fixedly connected with first thread grooves which are uniformly distributed, the outer diameter of the screw rod is connected with a screw nut in a sliding way, the inner wall of the periphery of the screw nut is fixedly connected with second thread grooves which are uniformly distributed, the outer diameter of the middle position of the screw nut is fixedly connected with a mounting block, a front commutator is arranged in the middle of the rear end of the right side of the screw nut, a rear commutator is arranged in the middle of the front end of the left side of the screw nut, the tapered rollers are connected in the second thread grooves in an sliding mode and are evenly distributed, the middle positions of the right rear end and the left front end of the screw nut penetrate through the screw nut and are provided with second thread holes, the positions of the second thread holes correspond to the positions of the front commutator and the rear commutator respectively, and the middle positions of the front commutator and the rear commutator penetrate through the screw nut and are provided with through holes.
Preferably, the periphery of the mounting block penetrates through and is provided with first threaded holes which are uniformly distributed.
Preferably, the second thread groove is in threaded connection with the first thread groove.
Preferably, the adjacent sides of the front commutator and the rear commutator and the screw nut are fixedly connected with limiting blocks.
Preferably, all sliding connection has fixing bolt in the through-hole and fixing bolt respectively with two threaded hole between threaded connection.
Preferably, the screw rod, the screw nut, the tapered roller, the front commutator and the rear commutator form an internal circulation closed loop.
Preferably, the tapered roller is in sliding connection with the first thread groove.
Preferably, the use method of the novel roller screw transmission device comprises the following steps:
s1. assembling
Sliding a screw nut onto a screw rod, uniformly placing tapered rollers in grooves of a second thread groove in the screw nut, aligning the tapered rollers, then respectively placing a front commutator and a rear commutator in the grooves on the left side and the right side of the screw nut, enabling a limiting block on the commutator to face the screw nut, preventing the tapered rollers from falling off through the limiting blocks on the front commutator and the rear commutator, respectively penetrating through holes on the front commutator and the rear commutator through fixing bolts and connecting the fixing bolts with the second thread groove in a threaded manner, and fixing the front commutator and the rear commutator on the screw nut;
s2, mounting
Fixing a mounting seat at the right end of the screw rod with the output end of the driving mechanism, and fixing a transmission part on the mounting block through a screw and a first threaded hole;
s3. transmission
The screw rod is driven to rotate through the driving mechanism, the screw nut is driven to move forwards on the screw rod through the thread effect between the first thread groove and the second thread groove, the tapered roller is driven to circulate in an internal circulation closed loop formed by the screw rod, the screw nut, the front commutator and the rear commutator, the screw nut is driven to do relative motion relative to the screw rod, motion and torque are transmitted, and the contact area between the screw nut and the screw rod is increased by taking the tapered roller as a transmission medium;
s4, maintenance and disassembly
The fixing bolt penetrates through the through hole to be in threaded connection with the second threaded hole, the front commutator and the rear commutator can be taken down from the screw nut, the screw nut can be taken down from the screw rod, and maintenance is carried out on the inner portion of the screw nut.
The working principle is as follows: the screw rod rotates to drive the screw nut to move forwards on the screw rod through the action of threads between the first thread groove and the second thread groove, the tapered roller is driven to circulate in the screw rod, the screw nut, the front commutator and the rear commutator to form an internal circulation closed loop, the screw nut is driven to move relative to the screw rod, motion and torque are transmitted, the contact area between the screw nut and the screw rod is increased by taking the tapered roller as a transmission medium, the tapered roller is enabled to bear larger axial thrust, the tapered roller can be prevented from falling off through limiting blocks on the front commutator and the rear commutator, the front commutator and the rear commutator can be taken down through threaded connection of the fixing bolt penetrating through the through hole and the second thread hole, maintenance can be carried out on the inner part of the screw nut, disassembly is more convenient, the screw rod can be installed through the installation seat, and transmission parts can be installed on the screw nut through the first thread hole on the installation block.
(III) advantageous effects
The invention provides a novel roller screw rod transmission device and a using method thereof. The method has the following beneficial effects:
the screw rod rotates to drive the nut to move forwards on the screw rod through the screw action between the first thread groove and the second thread groove, the tapered roller is driven to circulate in the internal circulation closed loop formed by the screw rod, the nut, the front commutator and the rear commutator to drive the nut to move relative to the screw rod and transmit movement and torque, the contact area between the nut and the screw rod is increased by taking the tapered roller as a transmission medium, the tapered roller can bear larger axial thrust, the tapered roller can be prevented from falling off by limiting blocks on the front commutator and the rear commutator, the front commutator and the rear commutator can be taken down through the threaded connection of the fixing bolt penetrating through the through hole and the second thread hole, the interior of the nut is maintained and repaired more conveniently, and the screw rod is worthy of great popularization.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an exploded view of the present invention;
fig. 4 is a schematic structural diagram of the nut of the present invention.
Wherein, 1, mounting seat; 2. a screw rod; 3. a first thread groove; 4. a nut; 5. mounting blocks; 6. a first threaded hole; 7. a second thread groove; 8. a front commutator; 9. a tapered roller; 10. a rear commutator; 11. a limiting block; 12. a second threaded hole; 13. a through hole; 14. and (5) fixing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-4, the embodiment of the present invention provides a novel roller screw transmission device, which comprises a mounting base 1, a screw rod 2 is fixedly connected to the left side of the mounting base 1, first screw grooves 3 which are uniformly distributed are fixedly connected to the outer diameter of the periphery of the screw rod 2, a nut 4 is slidably connected to the outer diameter of the screw rod 2, second screw grooves 7 which are uniformly distributed are fixedly connected to the inner wall of the periphery of the nut 4, a mounting block 5 is fixedly connected to the outer diameter of the middle position of the nut 4, a front commutator 8 is arranged at the middle position of the rear end of the right side of the nut 4, a rear commutator 10 is arranged at the middle position of the front end of the left side of the nut 4, conical rollers 9 which are uniformly distributed are slidably connected to the second screw grooves 7, second screw holes 12 are respectively arranged at the middle positions of the rear end of the right side and the front end of the left side of the nut 4, and the positions of the second screw holes 12 respectively correspond to the front commutator 8 and the rear commutator 10, the middle positions of the front commutator 8 and the rear commutator 10 are both penetrated and provided with through holes 13.
The periphery of the mounting block 5 is penetrated with first threaded holes 6 which are uniformly distributed.
The second thread groove 7 is in threaded connection with the first thread groove 3.
The adjacent sides of the front commutator 8 and the rear commutator 10 and the screw nut 4 are fixedly connected with limit blocks 11.
All sliding connections have fixing bolt 14 in the through-hole 13 and fixing bolt 14 respectively with two threaded hole 12 between threaded connection.
The screw rod 2, the screw nut 4, the tapered roller 9, the front commutator 8 and the rear commutator 10 form an internal circulation closed loop.
The tapered roller 9 is connected with the first thread groove 3 in a sliding way.
The use method of the novel roller screw rod transmission device comprises the following steps:
s1. assembling
Sliding the screw nut 4 onto the screw rod 2, uniformly placing the tapered rollers 9 in grooves of a second thread groove 7 in the screw nut 4, aligning the tapered rollers 9, then respectively placing the front commutator 8 and the rear commutator 10 in the grooves on the left side and the right side of the screw nut 4, enabling the position of a limiting block 11 on the commutator to face the screw nut 4, preventing the tapered rollers 9 from falling off through the limiting blocks 11 on the front commutator 8 and the rear commutator 10, respectively penetrating through holes 13 on the front commutator 8 and the rear commutator 10 through fixing bolts 14 and in threaded connection with a second thread hole 12, and fixing the front commutator 8 and the rear commutator 10 on the screw nut 4;
s2, mounting
The mounting seat 1 at the right end of the screw rod 2 is fixed with the output end of the driving mechanism, and the transmission part can be fixed on the mounting block 5 through a screw and a first threaded hole 6, so that the purpose that the screw nut 4 drives the transmission part to transmit is achieved;
s3. transmission
The screw rod 2 is driven to rotate through the driving mechanism, the screw nut 4 is driven to move forwards on the screw rod 2 through the screw thread action between the first thread groove 3 and the second thread groove 7, meanwhile, the tapered roller 9 is driven to circulate in an internal circulation closed loop formed by the screw rod 2, the screw nut 4, the front commutator 8 and the rear commutator 10, the screw nut 4 is driven to do relative motion relative to the screw rod 2, motion and torque are transmitted, the contact area between the screw nut 4 and the screw rod 2 is increased through the tapered roller 9 serving as a transmission medium, and the screw nut 4 and the screw rod 2 bear larger axial thrust, so that the transmission effect is better;
s4, maintenance and disassembly
Pass through-hole 13 and second screw hole 12 threaded connection through fixing bolt 14, can take off preceding commutator 8 and back commutator 10 from screw 4, can take off screw 4 from lead screw 2, to the maintenance of screw 4 inside, it is more convenient to dismantle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a novel roller screw drive, includes mount pad (1), its characterized in that: the mounting seat is characterized in that a lead screw (2) is fixedly connected to the left side of the mounting seat (1), first thread grooves (3) which are uniformly distributed are fixedly connected to the peripheral outer diameter of the lead screw (2), a screw (4) is slidably connected to the outer diameter of the lead screw (2), second thread grooves (7) which are uniformly distributed are fixedly connected to the peripheral inner wall of the screw (4), a mounting block (5) is fixedly connected to the outer diameter of the middle position of the screw (4), a front commutator (8) is arranged at the middle position of the right rear end of the screw (4), a rear commutator (10) is arranged at the middle position of the left front end of the screw (4), conical rollers (9) which are uniformly distributed are slidably connected to the second thread grooves (7), second thread holes (12) are formed in the middle positions of the right rear end and the left front end of the screw (4) in a penetrating manner, and the positions of the second thread holes (12) are respectively corresponding to the front commutator (8) and the rear commutator (10), and through holes (13) penetrate through the middle positions of the front commutator (8) and the rear commutator (10).
2. The roller screw drive of claim 1, wherein: the periphery of the mounting block (5) penetrates through and is provided with first threaded holes (6) which are uniformly distributed.
3. The roller screw drive of claim 1, wherein: the second thread groove (7) is in threaded connection with the first thread groove (3).
4. The roller screw drive of claim 1, wherein: and the front commutator (8) and the rear commutator (10) are fixedly connected with a limiting block (11) at one side adjacent to the nut (4).
5. The roller screw drive of claim 1, wherein: and the through hole (13) is internally and slidably connected with a fixing bolt (14), and the fixing bolt (14) is respectively in threaded connection with the two second threaded holes (12).
6. The roller screw drive of claim 1, wherein: the lead screw (2), the screw nut (4), the tapered roller (9), the front commutator (8) and the rear commutator (10) form an internal circulation closed loop.
7. The roller screw drive of claim 1, wherein: the tapered roller (9) is connected with the first thread groove (3) in a sliding way.
8. The use method of a novel roller screw transmission according to claim 1, characterized in that: the method comprises the following steps:
s1. assembling
Sliding a screw nut (4) onto a screw rod (2), uniformly placing tapered rollers (9) in grooves of a second thread groove (7) in the screw nut (4), aligning the tapered rollers (9), then respectively placing a front commutator (8) and a rear commutator (10) in the grooves on the left side and the right side of the screw nut (4), enabling a limiting block (11) on the commutator to face the screw nut (4), preventing the tapered rollers (9) from falling off through the limiting blocks (11) on the front commutator (8) and the rear commutator (10), respectively penetrating through holes (13) in the front commutator (8) and the rear commutator (10) through fixing bolts (14) and connecting the fixing bolts with the second thread hole (12) in a threaded manner, and fixing the front commutator (8) and the rear commutator (10) on the screw nut (4);
s2, mounting
The mounting seat (1) at the right end of the screw rod (2) is fixed with the output end of the driving mechanism, and the transmission part can be fixed on the mounting block (5) through a screw and a first threaded hole (6);
s3. transmission
The screw rod (2) is driven to rotate through the driving mechanism, the screw nut (4) is driven to move forwards on the screw rod (2) through the screw thread action between the first thread groove (3) and the second thread groove (7), meanwhile, the tapered roller (9) is driven to circulate in an internal circulation closed loop formed by the screw rod (2), the screw nut (4), the front commutator (8) and the rear commutator (10), the screw nut (4) is driven to move relatively to the screw rod (2), movement and torque are transmitted, and the contact area between the screw nut (4) and the screw rod (2) is increased by taking the tapered roller (9) as a transmission medium;
s4, maintenance and disassembly
The fixing bolt (14) penetrates through the through hole (13) to be in threaded connection with the second threaded hole (12), the front commutator (8) and the rear commutator (10) can be taken down from the screw nut (4), the screw nut (4) can be taken down from the screw rod (2), and maintenance and repair are carried out on the interior of the screw nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110673243.1A CN113374847A (en) | 2021-06-17 | 2021-06-17 | Novel roller screw rod transmission device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110673243.1A CN113374847A (en) | 2021-06-17 | 2021-06-17 | Novel roller screw rod transmission device and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113374847A true CN113374847A (en) | 2021-09-10 |
Family
ID=77577391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110673243.1A Withdrawn CN113374847A (en) | 2021-06-17 | 2021-06-17 | Novel roller screw rod transmission device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113374847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275195A (en) * | 2023-05-17 | 2023-06-23 | 唐山曹妃甸工业区长白机电设备检修有限公司 | Drilling device for shaft roller |
-
2021
- 2021-06-17 CN CN202110673243.1A patent/CN113374847A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275195A (en) * | 2023-05-17 | 2023-06-23 | 唐山曹妃甸工业区长白机电设备检修有限公司 | Drilling device for shaft roller |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210910 |