CN112032267A - Planetary roller screw and assembling method thereof - Google Patents
Planetary roller screw and assembling method thereof Download PDFInfo
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- CN112032267A CN112032267A CN202010857818.0A CN202010857818A CN112032267A CN 112032267 A CN112032267 A CN 112032267A CN 202010857818 A CN202010857818 A CN 202010857818A CN 112032267 A CN112032267 A CN 112032267A
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- nut
- sleeve
- axial
- planetary roller
- roller screw
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000036316 preload Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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
- F16H25/2252—Planetary rollers between nut and screw
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The application relates to a planetary roller screw comprising: the split nut assembly comprises a sleeve, a first nut, a second nut and an axial positioning piece, wherein one end of the sleeve is provided with an opening for the first nut and the second nut to be arranged in, the first nut and the second nut are respectively arranged at two ends of the sleeve, and a limiting structure is arranged between the first nut and the sleeve and between the second nut and the sleeve so as to limit the rotation of the first nut and the second nut; the axial positioning piece is arranged at the opening of the sleeve and used for sealing the first nut and the second nut in the sleeve; the lead screw is arranged inside the split nut component and is coaxial with the split nut component; the roller is installed between the outer wall of the screw rod and the inner wall of the split type nut assembly, and the screw rod, the roller and the split type nut assembly are connected in a threaded fit mode. The invention has the beneficial effects that: by adopting the split nut assembly, the nut can be independently processed outside the sleeve, and the precision requirement on the process requirement is greatly reduced.
Description
Technical Field
The application belongs to the technical field of planetary roller screws, and particularly relates to a planetary roller screw and an assembly method thereof.
Background
A planetary roller screw is a new type of transmission that can convert rotary motion into linear motion. The planet roller screw has higher shock resistance than the traditional ball screw, the static load of the planet roller screw is about 3 times of that of the traditional ball screw, and the service life of the planet roller screw is about 15 times of that of the traditional ball screw. And the planetary roller screw can have higher rotating speed and rotating acceleration, so that the planetary roller screw is widely applied to the fields of precision instruments, weaponry, industrial robots, aerospace and the like.
One existing standard planetary roller screw includes a lead screw, a bushing, and rollers. The nut, the lead screw and the roller are in interference fit through the pitch to realize radial pre-tightening, or in interference fit through the pitch to realize axial pre-tightening. Through pretension, realize the friction torque of pretension when planet roller lead screw is worked, reduce and skid. During the use of the part, the pre-tightening torque is gradually reduced along with the abrasion of the part, so that the performance of the screw assembly is influenced. As shown in fig. 7 and 8, in nut processing in the prior art, a roller fitting part 111, a roller fitting part 112, and a roller avoiding part 113 generally need to be clamped and processed for many times, so that processing difficulty is high to ensure concentricity.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the planetary roller screw and the assembling method thereof are provided for solving the problem that the concentricity of the nut of the planetary roller screw is difficult to guarantee in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a planetary roller screw comprising:
the split nut assembly comprises a sleeve, a first nut, a second nut and an axial positioning piece, wherein one end of the sleeve is provided with an opening for the first nut and the second nut to be installed in, the first nut and the second nut are respectively installed at two ends of the sleeve, and a limiting structure is arranged between the first nut and the sleeve and between the second nut and the sleeve so as to limit the rotation of the first nut and the second nut; the axial positioning piece is arranged at the opening of the sleeve and used for sealing the first nut and the second nut inside the sleeve;
the lead screw is arranged inside the split nut component and is coaxial with the split nut component;
the roller is installed between the outer wall of the screw rod and the inner wall of the split type nut assembly, and the screw rod, the roller and the split type nut assembly are connected in a threaded fit mode.
Preferably, in the planetary roller screw according to the present invention, the diameter of the middle section of the roller is larger than the diameters of both ends, and the middle section of the roller is caught in the gap between the first nut and the second nut.
Preferably, according to the planetary roller screw disclosed by the invention, an elastic part is arranged between the end part of the first nut and/or the second nut and the inner walls of the two ends of the split nut assembly, and the elastic part is used for providing axial pre-tightening force for the first nut and/or the second nut.
Preferably, the elastic member of the planetary roller screw of the present invention is a coil spring, a wave spring or a disc spring.
Preferably, in the planetary roller screw, the elastic part is a disk spring, the disk springs are two in total, and the two disk springs are arranged back to back.
Preferably, in the planetary roller screw according to the present invention, the outer walls of the first nut and the second nut have a cut surface or a groove, and the inner wall of the sleeve has a fitting structure corresponding to the cut surface or the groove, so that the first nut and the second nut do not rotate relative to the sleeve.
Preferably, in the planetary roller screw of the present invention, one end of the sleeve is open, and the other end of the sleeve is provided with a baffle plate, and the baffle plate is provided with a through hole for the screw to pass through; the opening part edge has the bayonet socket, the opening part edge still is equipped with the flange that can plastic deformation along the inner wall, the edge of axial positioning element is equipped with the lug, the outer wall of axial positioning element still is equipped with the constant head tank, the flange card is gone into in the constant head tank, the lug card is gone into in the bayonet socket.
Preferably, in the planetary roller screw of the present invention, the sidewall of the sleeve is further provided with a limit groove along the axial direction, and the limit groove is used for limiting the rotation of the sleeve.
The assembling method of the planetary roller screw, which uses the planetary roller screw, comprises the following steps:
s1, taking the sleeve, placing the elastic part from one end of the opening of the sleeve, then placing the first nut, the roller and the second nut into the opening, and screwing the screw rod into the roller along the threads;
s2, taking an axial positioning piece, pushing the axial positioning piece to the opening of the sleeve along the lead screw, applying a target pretightening force to the axial positioning piece through the tool, and after an expected axial force is achieved, riveting the tool to move axially to enable the sleeve to generate radial deformation to be attached to the axial positioning piece, so that the axial positioning is sufficient; the tool and the riveting tool are fixed in an axial positioning mode, and the fact that the axial force of the elastic part does not change when the riveting tool moves axially is guaranteed.
Preferably, according to the assembling method of the planetary roller screw, the elastic part adopts two disc springs which are arranged back to back; the method further comprises S3, and the change curve of the axial pretightening force and the displacement of the elastic part is debugged: before the elastic part is put into use, the elastic part displaces L1, the axial pretightening force F1 is generated, after the elastic part is worn in use, the elastic part deforms to the displacement L2, at the moment, the axial pretightening force F2 enables the difference between the axial pretightening force F1 and the axial pretightening force F2 to be reduced as much as possible through optimizing the characteristics of the elastic part.
The invention has the beneficial effects that: by adopting the split nut assembly, the nut can be independently processed outside the sleeve, and the precision requirement on the process requirement is greatly reduced;
the elastic part can provide axial pretightening force, and the assembly can be stable in the using process by optimizing the pretightening force.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
FIG. 1 is a schematic cross-sectional view of the overall structure of a planetary roller screw according to an embodiment of the present application;
FIG. 2 is a schematic view of the internal structure of a planetary roller screw according to an embodiment of the present application;
FIG. 3 is a schematic view of the connection of the elastic part and the axial positioning member of the planetary roller screw according to the embodiment of the present application;
FIG. 4 is a schematic view of a method of assembling a planetary roller screw according to an embodiment of the present application;
FIG. 5 is a schematic view of the sleeve and axial positioning member configuration of the planetary roller screw of an embodiment of the present application;
FIG. 6 is a schematic structural diagram of an outer wall of a nut of the planetary roller screw according to the embodiment of the present application;
FIG. 7 is a schematic diagram of a prior art planetary roller screw configuration;
FIG. 8 is a schematic cross-sectional view of a prior art nut arrangement for a planetary roller screw;
FIG. 9 is a graphical representation of the performance parameters of an embodiment of the present application for an unoptimized elastomeric part characteristic;
FIG. 10 is a schematic diagram of performance parameters of an embodiment of an elastic component according to the present application after optimization of characteristics.
The reference numbers in the figures are:
11A first nut
11B second nut
12 lead screw
13 roller
14 elastic parts
15 axial positioning piece
16 sleeve
17 riveting tool
18 tooling
111 roller fitting part
112 roller mating section
113 roller avoiding part
151 locating slot
153 projection
161 baffle
162 limiting groove
163 bayonet.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Examples
The present embodiment provides a planetary roller screw, as shown in fig. 1 to 5, comprising:
the split nut assembly comprises a sleeve 16, a first nut 11A, a second nut 11B and an axial positioning piece 15, wherein one end of the sleeve 16 is provided with an opening for the first nut 11A and the second nut 11B to be installed in, the first nut 11A and the second nut 11B are respectively installed at two ends of the sleeve 16, and a limiting structure is arranged between the first nut 11A and the sleeve 16 and between the second nut 11B and the sleeve 16 so as to limit the rotation of the first nut 11A and the second nut 11B; the axial positioning piece 15 is installed at an opening of the sleeve 16 and used for sealing the first nut 11A and the second nut 11B inside the sleeve 16;
the screw rod 12 is installed inside the split nut assembly and is coaxial with the split nut assembly;
and the roller 13 is arranged between the outer wall of the screw rod 12 and the inner wall of the split nut assembly, and the screw rod 12, the roller 13 and the split nut assembly are connected in a threaded fit manner.
The planet roller screw of this embodiment adopts split type nut subassembly, and the nut can be processed alone in the sleeve outside, and required precision greatly reduced on technological requirement.
Preferably, in the planetary roller screw of the present embodiment, as shown in fig. 1, the diameter of the middle section of the roller 13 is larger than the diameters of both ends, and the middle section of the roller 13 is caught in the gap between the first nut 11A and the second nut 11B. Radial pre-tightening is achieved through the interference fit of the middle diameter between the rollers 13, or axial pre-tightening is achieved through the interference fit of the pitch. Through pretension, realize the friction torque of pretension when planet roller lead screw is worked, reduce and skid. In addition, because of adopting the split type structure, the lead screw 12 in this embodiment can be set to the structure that the diameter of the middle section diameter is smaller than the diameters of the two ends, so that the diameter of the middle section of the lead screw 12 and the diameter of the roller 13 are larger than the diameters of the two ends to form the fit, because the nut in the prior art is not split type, the installation of the lead screw 12 cannot be completed, in this embodiment, the lead screw and the roller can be installed in the first nut 11A and the second nut 11B first, and then the sleeve 16 is sleeved outside.
Preferably, in the planetary roller screw according to the embodiment, as shown in fig. 3 and 4, an elastic part 14 is disposed between an end of the first nut 11A and/or the second nut 11B and inner walls of two ends of the split nut assembly, and the elastic part 14 is used for providing a pre-tightening force to the first nut 11A and/or the second nut 11B in an axial direction. When the pre-tightening force generated by the interference fit of the roller 13 is reduced due to the abrasion of the roller, the elastic part 14 can increase the elastic force and compensate the pre-tightening force, so that the assembly is stable in the using process.
Preferably, in the planetary roller screw of the present embodiment, the elastic member 14 is a coil spring, a wave spring or a disc spring.
Preferably, in the planetary roller screw according to the embodiment, the elastic part 14 is a disc spring, the disc spring may be provided in one piece, and preferably provided in two pieces in order to fully utilize radial space, and the two pieces of the disc spring are installed back to back.
Preferably, in the planetary roller screw of the present embodiment, as shown in fig. 6, the outer walls of the first nut 11A and the second nut 11B have a cut surface or a groove, and the inner wall of the sleeve 16 has a matching structure corresponding to the cut surface or the groove, so that the first nut 11A and the second nut 11B do not rotate relative to the sleeve 16.
Preferably, in the planetary roller screw according to the present embodiment, as shown in fig. 5, one end of the sleeve 16 is open, and the other end of the sleeve has a baffle 161, and the baffle 161 has a through hole for the screw 12 to pass through; the opening part edge has bayonet socket 163, the opening part edge still is equipped with the flange that can plastic deformation along the inner wall, axial positioning element 15's edge is equipped with lug 153, axial positioning element 15's outer wall still is equipped with constant head tank 151, the flange card is gone into in the constant head tank 151, lug 153 card is gone into in the bayonet socket 163. The structure limits the radial and axial movement of the axial positioning piece 15, and indirectly limits the axial movement of the first nut 11A and the second nut 11B.
Preferably, in the planetary roller screw according to this embodiment, the sidewall of the sleeve 16 is further provided with an axial limiting groove 162, and the limiting groove 162 is used for limiting the rotation of the sleeve 16.
The embodiment provides an assembling method of a planetary roller screw, as shown in fig. 4, using the planetary roller screw, comprising the following steps:
s1, taking the sleeve 16, placing the elastic part 14 from one end of the opening of the sleeve 16, then placing the first nut 11A, the roller 13 and the second nut 11B into the opening, and screwing the screw rod 12 into the roller 13 along the threads;
s2, taking an axial positioning piece 15, pushing the axial positioning piece 15 to the opening of the sleeve 16 along the lead screw 12, applying a target pretightening force (0-1000N) to the axial positioning piece 15 through a tool 18, and after the expected axial force is achieved, axially moving a riveting tool 17 to enable the sleeve 16 to generate radial deformation to be attached to the axial positioning piece 15, so that the axial positioning is sufficient; the tool 18 and the riveting tool 17 are axially positioned and fixed, so that the axial force of the elastic part 14 is unchanged when the riveting tool 17 moves axially.
Preferably, in the assembly method of the planetary roller screw according to the embodiment, as shown in fig. 1 and 4, the elastic part 14 adopts two disc springs and is arranged back to back; as shown in fig. 9 and 10, the method further includes S3, adjusting the variation curve of the axial preload and the displacement of the elastic element 14: before being put into use, the elastic part 14 is displaced L1Axial pre-tightening force F1After wear of use, the elastic element 14 is deformed to a displacement L2At this time, axial preload force F2The axial pretightening force F is optimized by the characteristics of the elastic part1With axial pre-tightening force F2The difference is minimized.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A planetary roller screw, comprising:
the split nut assembly comprises a sleeve (16), a first nut (11A), a second nut (11B) and an axial positioning piece (15), wherein one end of the sleeve (16) is provided with an opening for the first nut (11A) and the second nut (11B) to be installed in, the first nut (11A) and the second nut (11B) are respectively installed at two ends of the sleeve (16), and a limiting structure is arranged between the first nut (11A) and the sleeve (16) and between the second nut (11B) and the sleeve (16) so as to limit the rotation of the first nut (11A) and the second nut (11B); the axial positioning piece (15) is arranged at the opening of the sleeve (16) and is used for sealing the first nut (11A) and the second nut (11B) inside the sleeve (16);
the lead screw (12) is installed inside the split nut assembly and is coaxial with the split nut assembly;
the roller (13) is installed between the outer wall of the screw rod (12) and the inner wall of the split nut assembly, and the screw rod (12), the roller (13) and the split nut assembly are connected in a threaded fit mode.
2. A planetary roller screw according to claim 1, characterized in that the diameter of the middle section of the rollers (13) is larger than the diameter of both ends, the middle section of the rollers (13) snapping into the gap between the first nut (11A) and the second nut (11B).
3. A planetary roller screw according to claim 2, characterized in that an elastic part (14) is provided between the end of the first nut (11A) and/or the second nut (11B) and the inner wall of both ends of the split nut assembly, said elastic part (14) being adapted to provide an axial pretension to the first nut (11A) and/or the second nut (11B).
4. A planetary roller screw according to claim 3, characterized in that the elastic part (14) is a helical spring, a wave spring or a disc spring.
5. A planetary roller screw according to claim 4, characterized in that the elastic part (14) is a disc spring, which has two pieces, the two pieces of the disc spring being mounted back-to-back.
6. A planetary roller screw according to any of claims 1 to 5, characterized in that the outer wall of the first nut (11A) and the second nut (11B) has a cut or groove and the inner wall of the sleeve (16) has a mating structure corresponding to the cut or groove so that the first nut (11A) and the second nut (11B) do not rotate relative to the sleeve (16).
7. A planetary roller screw according to any of claims 1 to 5, wherein the sleeve (16) is open at one end and has a blind (161) at the other end, the blind (161) having a through hole for the screw (12) to pass through; opening part edge has bayonet socket (163), opening part edge still is equipped with the flange that can plastic deformation along the inner wall, the edge of axial positioning piece (15) is equipped with lug (153), the outer wall of axial positioning piece (15) still is equipped with constant head tank (151), the flange card is gone into in constant head tank (151), lug (153) card is gone into in bayonet socket (163).
8. A planetary roller screw according to claim 7, characterized in that the side wall of the sleeve (16) is further provided with an axial limiting groove (162), and the limiting groove (162) is used for limiting the rotation of the sleeve (16).
9. A method of assembling a planetary roller screw, using a planetary roller screw according to any of claims 1-8, comprising the steps of:
s1, taking the sleeve (16), placing the elastic part (14) from one end of the opening of the sleeve (16), then placing the first nut (11A), the roller (13) and the second nut (11B) into the opening, and screwing the screw rod (12) into the roller (13) along the threads;
s2, taking an axial positioning piece (15), pushing the axial positioning piece (15) to an opening of the sleeve (16) along the lead screw (12), applying a target pretightening force to the axial positioning piece (15) through a tool (18), and after an expected axial force is achieved, axially moving a riveting tool (17) to enable the sleeve (16) to generate radial deformation to be attached to the axial positioning piece (15) so as to enable the axial positioning to be sufficient; the tool (18) and the riveting tool (17) are axially positioned and fixed, and the axial force of the elastic part (14) is unchanged when the riveting tool (17) axially moves.
10. A method of assembling a planetary roller screw according to claim 9, wherein the elastic member (14) is formed of two disc springs mounted back-to-back; also includes S3, debugging the axial directionVariation curves of the tension and the displacement of the elastic element (14): before being put into use, the elastic part (14) displaces L1Axial pre-tightening force F1After wear of the elastic element (14) during use, the elastic element deforms to a displacement L2At this time, axial preload force F2The axial pretightening force F is optimized by the characteristics of the elastic part1With axial pre-tightening force F2The difference is minimized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010857818.0A CN112032267A (en) | 2020-08-24 | 2020-08-24 | Planetary roller screw and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010857818.0A CN112032267A (en) | 2020-08-24 | 2020-08-24 | Planetary roller screw and assembling method thereof |
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| CN112032267A true CN112032267A (en) | 2020-12-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936146A (en) * | 2021-02-03 | 2021-06-11 | 内蒙古工业大学 | Integrated assembly fixture of reverse planetary roller screw pair |
| CN112945844A (en) * | 2021-02-20 | 2021-06-11 | 青岛科技大学 | Vacuum high-temperature reciprocating type friction and wear testing system |
| CN113251122A (en) * | 2020-10-10 | 2021-08-13 | 杭州新剑机器人技术股份有限公司 | Differential planetary roller screw |
| CN114321308A (en) * | 2021-12-07 | 2022-04-12 | 苏州微创畅行机器人有限公司 | Feeding mechanism and punching device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165384A (en) * | 2006-10-10 | 2008-04-23 | 诺玛德国有限责任公司 | Plug-type connection arrangement for a hose and a pipe |
| CN102628500A (en) * | 2012-04-19 | 2012-08-08 | 西北工业大学 | Planet roller screw mechanism capable of eliminating axial gaps |
| CN107208713A (en) * | 2015-02-17 | 2017-09-26 | 舍弗勒技术股份两合公司 | Actuator with planetary roller screw drive |
| CN108757865A (en) * | 2018-08-20 | 2018-11-06 | 北京因时机器人科技有限公司 | Transmission mechanism and transmission device |
| CN109210164A (en) * | 2017-07-03 | 2019-01-15 | 上海汽车集团股份有限公司 | Planet roller screw mechanism, automobile hydraulic separation system and automobile |
| DE102017128516A1 (en) * | 2017-12-01 | 2019-06-06 | Schaeffler Technologies AG & Co. KG | Planetenwälzgewindetrieb |
| CN213575395U (en) * | 2020-08-24 | 2021-06-29 | 上海迈道汽配有限公司 | Planetary roller screw |
-
2020
- 2020-08-24 CN CN202010857818.0A patent/CN112032267A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165384A (en) * | 2006-10-10 | 2008-04-23 | 诺玛德国有限责任公司 | Plug-type connection arrangement for a hose and a pipe |
| CN102628500A (en) * | 2012-04-19 | 2012-08-08 | 西北工业大学 | Planet roller screw mechanism capable of eliminating axial gaps |
| CN107208713A (en) * | 2015-02-17 | 2017-09-26 | 舍弗勒技术股份两合公司 | Actuator with planetary roller screw drive |
| CN109210164A (en) * | 2017-07-03 | 2019-01-15 | 上海汽车集团股份有限公司 | Planet roller screw mechanism, automobile hydraulic separation system and automobile |
| DE102017128516A1 (en) * | 2017-12-01 | 2019-06-06 | Schaeffler Technologies AG & Co. KG | Planetenwälzgewindetrieb |
| CN108757865A (en) * | 2018-08-20 | 2018-11-06 | 北京因时机器人科技有限公司 | Transmission mechanism and transmission device |
| CN213575395U (en) * | 2020-08-24 | 2021-06-29 | 上海迈道汽配有限公司 | Planetary roller screw |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251122A (en) * | 2020-10-10 | 2021-08-13 | 杭州新剑机器人技术股份有限公司 | Differential planetary roller screw |
| CN112936146A (en) * | 2021-02-03 | 2021-06-11 | 内蒙古工业大学 | Integrated assembly fixture of reverse planetary roller screw pair |
| CN112936146B (en) * | 2021-02-03 | 2022-07-05 | 内蒙古工业大学 | Integrated assembly fixture of reverse planetary roller screw pair |
| CN112945844A (en) * | 2021-02-20 | 2021-06-11 | 青岛科技大学 | Vacuum high-temperature reciprocating type friction and wear testing system |
| CN112945844B (en) * | 2021-02-20 | 2023-04-21 | 青岛科技大学 | Vacuum high-temperature reciprocating friction and wear testing system |
| CN114321308A (en) * | 2021-12-07 | 2022-04-12 | 苏州微创畅行机器人有限公司 | Feeding mechanism and punching device |
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Effective date of registration: 20230328 Address after: 335200 Glasses Industrial Park, Yujiang District, Yingtan City, Jiangxi Province Applicant after: Jiangxi Wudecheng Technology Co.,Ltd. Address before: 201900 Building 2, No.58, Lane 1000, panchuan Road, Baoshan District, Shanghai Applicant before: SHANGHAI MAIDAO AUTO PARTS Co.,Ltd. |
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Country or region after: China Address after: 335200 Glasses Industrial Park, Yujiang District, Yingtan City, Jiangxi Province Applicant after: Jiangxi Walder Precision Industry Co.,Ltd. Address before: 335200 Glasses Industrial Park, Yujiang District, Yingtan City, Jiangxi Province Applicant before: Jiangxi Wudecheng Technology Co.,Ltd. Country or region before: China |