CN107327552B - Large-stroke vertical screw feed system - Google Patents
Large-stroke vertical screw feed system Download PDFInfo
- Publication number
- CN107327552B CN107327552B CN201710649140.5A CN201710649140A CN107327552B CN 107327552 B CN107327552 B CN 107327552B CN 201710649140 A CN201710649140 A CN 201710649140A CN 107327552 B CN107327552 B CN 107327552B
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- Prior art keywords
- screw
- lifting
- base
- servo motor
- linear guide
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- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 12
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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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
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a large-stroke vertical screw feed system which comprises a transmission assembly and a lifting assembly. The transmission assembly is fixedly connected to the base and is connected with the lifting assembly through a main transmission screw nut. The nut is driven to move through the rotation of the motor, the nut drives the lifting assembly to finish lifting movement, the lifting mechanism is provided with a guide rail sliding block, the guide rail sliding block is used in pairs with a guide rail fixedly connected to the base, and the guide function is achieved during lifting movement. The invention realizes a large-stroke vertical screw feed system with one-stage lifting, has high mute transmission, high transmission efficiency, high motion precision, simple structure and high bearing capacity, and can realize stable motion of the output end.
Description
Technical Field
The invention belongs to the technical field of mechanical transmission, and particularly relates to a large-stroke vertical screw feed system.
Background
The electric push rod mechanism is a driving device for converting the rotation motion of a motor into the linear reciprocating motion of a screw rod, and can be used as an actuating mechanism in various process flows to realize remote control, centralized control or automatic control. The electric push rod is widely applied to the fields of mechanical transmission, platform lifting, heavy object lifting and the like, and the push rod mechanism has various forms including pneumatic, hydraulic, manual, electric and the like.
Along with the development of science and technology, the development of an electric cylinder in an electric push rod is mature gradually, and the application range is expanded continuously from single-stage lifting to multi-stage lifting. However, the electric cylinder on the market generally has a weakness that the electric cylinder is too noisy and harsh when in motion, which is not suitable for being applied to occasions with high requirements on sound such as a studio; in addition, the system is used for realizing automation of shooting and video recording of the studio and a special working environment of the studio. At present, an electric push rod mechanism which is small in size, automatic in control and accurate in tail end position and speed and controllable is seldom achieved.
Disclosure of Invention
The invention aims to provide a primary lifting vertical screw feeding system which realizes high mute transmission, high bearing capacity, high motion precision and large stroke under a smaller external dimension.
The technical solution for realizing the purpose of the invention is as follows: the large-stroke vertical screw feed system comprises a transmission assembly and a lifting assembly, wherein the lifting assembly moves under the drive of the transmission assembly, and the transmission assembly comprises a servo motor, a base, a motor retainer ring, a screw sleeve, a type I bearing, a motor key, a bearing outer retainer ring, a bearing inner retainer ring, a screw retainer ring, a ball screw, an anti-collision block, a screw upper base, a type II bearing, a screw end cover, an inner support plate and a rolling linear guide rail; the lifting assembly comprises a ball screw nut, a lifting assembly end cover, an outer support plate, a rolling linear guide rail sliding block, a lifting base and a lifting support plate;
the cross section of the upper end surface of the base is of a hexagonal structure, a screw rod sleeve is fixedly connected inside the base, a motor check ring is arranged between the screw rod sleeve and the servo motor, and the servo motor is fixedly connected on the base; four coaxially arranged I-shaped bearings are arranged in the screw sleeve, one group of two bearings is arranged, an outer bearing retainer ring and an inner bearing retainer ring are arranged between the two groups of bearings, a screw retainer ring is arranged at the tail end of the bearing far away from the motor, and the screw retainer ring is matched with the ball screw; one end of the ball screw, which is close to the servo motor, is matched with the motor through a key and rotates under the driving of the motor, two coaxially arranged II-type bearings are arranged at the shaft end of the ball screw, which is far away from the servo motor, and are arranged in a screw upper base, the screw upper base is close to the servo motor Fang Gu and is connected with an anti-collision block, and one end of the screw upper base, which is far away from the servo motor, is fixedly connected with a screw end cover;
the cross section of lifting base is hexagonal structure, lifting base is close to servo motor side and links firmly the lift backup pad of three equipartitions, lift backup pad links firmly with ball screw nut, six rolling linear guide sliders have been linked firmly to the inboard trilateral of lifting base, two rolling linear guide sliders have been linked firmly to each face, two rolling linear guide sliders on each face cooperate with a rolling linear guide that corresponds, the whole device is three rolling linear guide altogether, rolling linear guide links firmly in the interior backup pad that corresponds, the direction of going up and down is realized to the rolling linear guide of three equipartitions, every interior backup pad one end all links firmly with the base, the other end all links firmly with the base on the lead screw, the inboard trilateral outer backup pad of lifting base links firmly with three outer backup pad in addition, the outer backup pad is kept away from servo motor side and links firmly with the lifting assembly end cover.
Compared with the prior art, the invention has the remarkable advantages that: 1) The invention can realize large-stroke transmission under smaller size by only using the primary lifting mechanism; 2) The invention adopts the ball screw and the servo motor to realize lifting movement by direct connection transmission, and has the characteristics of simple structure, small size and the like; 3) The invention realizes the lifting guide function by utilizing the three uniformly distributed rolling linear guide rails, has strong rigidity, and is sufficient for occasions such as machine tools, high-precision transmission control and the like; 4) The transmission part of the invention utilizes the ball screw pair with large lead for transmission, and can realize transmission control with high precision and high repeated positioning precision; 5) The invention adopts the electric push rod mechanism, and realizes the advantages of large stroke, accurate and controllable tail end position and the like through the structural design of electric driving, telescopic rod members and the like.
Drawings
FIG. 1 is a cross-sectional view of the general structure of a large stroke vertical screw feed system of the present invention.
FIG. 2 is a cross-sectional view of a drive assembly of a large stroke vertical screw feed system of the present invention.
FIG. 3 is a cross-sectional view of a lift assembly of a large stroke vertical screw feed system of the present invention.
Detailed Description
With reference to the attached drawings, the large-stroke vertical screw feed system comprises a transmission assembly and a lifting assembly, wherein the lifting assembly moves under the drive of the transmission assembly, and the transmission assembly comprises a servo motor 1, a base 2, a motor retainer ring 3, a screw sleeve 4, a type I bearing 5, a motor key 6, a bearing outer retainer ring 7, a bearing inner retainer ring 8, a screw retainer ring 9, a ball screw 11, an anti-collision block 12, a screw upper base 13, a type II bearing 14, a screw end cover 15, an inner support plate 18 and a rolling linear guide rail 19; the lifting assembly comprises a ball screw nut 10, a lifting assembly end cover 16, an outer support plate 17, a rolling linear guide rail slide block 20, a lifting base 21 and a lifting support plate 22;
the cross section of the upper end surface of the base 2 is of a hexagonal structure, a screw rod sleeve 4 is fixedly connected inside the base 2, a motor check ring 3 is arranged between the screw rod sleeve 4 and the servo motor 1, and the servo motor 1 is fixedly connected to the base 2; four coaxially arranged I-shaped bearings 5 are arranged in the screw sleeve 4, every two bearings are in a group, an outer bearing retainer ring 7 and an inner bearing retainer ring 8 are arranged between the two groups of bearings, a screw retainer ring 9 is arranged at the tail end of the bearing far away from the motor 1, and the screw retainer ring 9 is matched with a ball screw 11; one end of the ball screw 11, which is close to the servo motor 1, is matched with the motor 1 through a key 6, and rotates under the drive of the motor 1, two coaxially arranged II-type bearings 14 are arranged at the shaft end of the ball screw 11, which is far away from the servo motor 1, the two II-type bearings 14 are arranged in a screw upper base 13, the screw upper base 13 is fixedly connected with an anti-collision block 12, and one end of the screw upper base 13, which is far away from the servo motor 1, is fixedly connected with a screw end cover 15;
the cross section of the lifting base 21 is of a hexagonal structure, the lifting base 21 is close to the servo motor 1 and fixedly connected with three uniformly distributed lifting support plates 22, the lifting support plates 22 are fixedly connected with ball screw nuts 10, six rolling linear guide sliding blocks 20 are fixedly connected on three sides of the inner side of the lifting base 21, two rolling linear guide sliding blocks 20 are fixedly connected on each side, two rolling linear guide sliding blocks 20 on each side are matched with a corresponding rolling linear guide 19, the whole device is provided with three rolling linear guide 19 in total, the rolling linear guide 19 is fixedly connected on a corresponding inner support plate 18, lifting guide is realized by the three uniformly distributed rolling linear guide 19, one end of each inner support plate 18 is fixedly connected with the base 2, the other end of each inner support plate 18 is fixedly connected with the screw upper base 13, the other three sides of the inner side of the lifting base 21 are fixedly connected with three outer support plates 17, and the outer support plates 17 are far away from the servo motor 1 and fixedly connected with the lifting assembly end cover 16.
The ball screw 11 is directly connected with the servo motor 1, and is driven by the servo motor 1 to realize lifting.
The base 2, the lifting assembly end cover 16, the outer support plate 17 and the inner support plate 18 are all made of aluminum.
The ball screw 11 is a large-lead ball screw pair.
The invention adopts the ball screw and the servo motor to realize lifting movement by direct connection transmission, and has the characteristics of simple structure, small size and the like; the invention realizes the lifting guide function by using three uniformly distributed rolling linear guide rails, has strong rigidity, and is suitable for occasions such as machine tools, high-precision transmission control and the like.
The invention is described in further detail below with reference to the drawings and the specific embodiments.
Examples
Referring to fig. 1 to 3, the large-stroke vertical screw feed system of the present invention includes a servo motor 1, a base 2, a motor retainer 3, a screw sleeve 4, a type i bearing 5, a motor key 6, a bearing outer retainer 7, a bearing inner retainer 8, a screw retainer 9, a ball screw nut 10, a ball screw 11, an anti-collision block 12, a screw upper base 13, a type ii bearing 14, a screw end cover 15, a lifting assembly end cover 16, an outer support plate 17, an inner support plate 18, a rolling linear guide 19, a rolling linear guide slider 20, a lifting base 21, and a lifting support plate 22;
the cross section of the upper end surface of the base 2 is of a hexagonal structure, a screw rod sleeve 4 is fixedly connected inside the base 2, a motor check ring 3 is arranged between the screw rod sleeve 4 and the servo motor 1, and the servo motor 1 is fixedly connected to the base 2; four coaxially arranged I-shaped bearings 5 are arranged in the screw sleeve 4, every two bearings are in a group, an outer bearing retainer ring 7 and an inner bearing retainer ring 8 are arranged between the two groups of bearings, a screw retainer ring 9 is arranged at the tail end of the bearing far away from the motor 1, and the screw retainer ring 9 is matched with a ball screw 11; one end of the ball screw 11, which is close to the servo motor 1, is matched with the motor 1 through a key 6, and rotates under the drive of the motor 1, two coaxially arranged II-type bearings 14 are arranged at the shaft end of the ball screw 11, which is far away from the servo motor 1, the two II-type bearings 14 are arranged in a screw upper base 13, the screw upper base 13 is fixedly connected with an anti-collision block 12, and one end of the screw upper base 13, which is far away from the servo motor 1, is fixedly connected with a screw end cover 15;
the cross section of the lifting base 21 is of a hexagonal structure, three uniformly distributed lifting support plates 22 are fixedly connected to the lifting base 21 close to the servo motor 1, the lifting support plates 22 are fixedly connected with the ball screw nuts 10, six rolling linear guide rail sliding blocks 20 are fixedly connected to three sides of the inner side of the lifting base 21, two rolling linear guide rail sliding blocks 20 are fixedly connected to each side, the two rolling linear guide rail sliding blocks 20 on each side are matched with a corresponding rolling linear guide rail 19, the whole device comprises three rolling linear guide rails 19, the rolling linear guide rails 19 are fixedly connected to corresponding inner support plates 18, lifting guide is realized by the three uniformly distributed rolling linear guide rails 19, one end of each inner support plate 18 is fixedly connected with the base 2, the other end of each inner support plate 18 is fixedly connected with the screw upper base 13, the other three sides of the inner side of the lifting base 21 are fixedly connected with three outer support plates 17, and the outer support plates 17 are far from the servo motor 1 and fixedly connected with the lifting assembly end cover 16;
the ball screw 11 is directly connected with the servo motor 1, and the servo motor 1 is adopted to drive the ball screw 11 to realize lifting motion.
The base 2, the lifting assembly end cover 16, the outer support plate 17 and the inner support plate 18 are all made of aluminum.
The ball screw 11 is a large lead roller screw pair.
The servo motor 1 is started, the servo motor 1 drives the transmission ball screw 11 to rotate through the motor key 6, the ball screw 11 rotates to enable the ball screw nut 10 to be far away from or close to the servo motor, the ball screw nut 10 drives the lifting support plate 22, the lifting support plate 22 drives the lifting base 21 to move up and down, the rolling linear guide rail sliding block 20 fixedly connected with the lifting base 21 moves along the rolling linear guide rail 19 fixedly connected with the inner support plate 18, the guiding effect is achieved, and the outer support plate 17 plate fixedly connected with the lifting base 21 finally drives the tail end output device fixedly connected with the lifting assembly end cover 16 to finish the lifting motion.
The invention can realize large-stroke transmission under smaller size by only using the primary lifting mechanism.
Claims (4)
1. The large-stroke vertical screw feed system is characterized by comprising a transmission assembly and a lifting assembly, wherein the lifting assembly moves under the drive of the transmission assembly, and the transmission assembly comprises a servo motor (1), a base (2), a motor retainer ring (3), a screw sleeve (4), a type I bearing (5), a motor key (6), a bearing outer retainer ring (7), a bearing inner retainer ring (8), a screw retainer ring (9), a ball screw (11), an anti-collision block (12), a screw upper base (13), a type II bearing (14), a screw end cover (15), an inner support plate (18) and a rolling linear guide rail (19); the lifting assembly comprises a ball screw nut (10), a lifting assembly end cover (16), an outer support plate (17), a rolling linear guide rail sliding block (20), a lifting base (21) and a lifting support plate (22);
the cross section of the upper end surface of the base (2) is of a hexagonal structure, a screw rod sleeve (4) is fixedly connected inside the base (2), a motor check ring (3) is arranged between the screw rod sleeve (4) and the servo motor (1), and the servo motor (1) is fixedly connected to the base (2); four coaxially arranged I-shaped bearings (5) are arranged in the screw sleeve (4), each two bearings are in a group, an outer bearing retainer ring (7) and an inner bearing retainer ring (8) are arranged between the two groups of bearings, a screw retainer ring (9) is arranged at the tail end of the bearing far away from the motor (1), and the screw retainer ring (9) is matched with the ball screw (11); one end of the ball screw (11) close to the servo motor (1) is matched with the motor (1) through a motor key (6), the ball screw (11) rotates under the driving of the motor (1), two coaxially arranged II-type bearings (14) are arranged at the shaft ends of the ball screw (11) far away from the servo motor (1), the two II-type bearings (14) are arranged in a screw upper base (13), the screw upper base (13) is close to the servo motor (1) Fang Gu and is connected with an anti-collision block (12), and one end of the screw upper base (13) far away from the servo motor (1) is fixedly connected with a screw end cover (15);
the cross section of lifting base (21) is hexagonal structure, lifting base (21) is close to servo motor (1) Fang Gu and links three equipartition's lifting support board (22), lifting support board (22) link firmly with ball screw nut (10), six rolling linear guide slider (20) have been linked firmly to lifting base (21) inboard trilateral, two rolling linear guide slider (20) are linked firmly on every face, two rolling linear guide slider (20) on every face cooperate with a rolling linear guide (19) that corresponds, three rolling linear guide (19) altogether of whole device, rolling linear guide (19) link firmly on corresponding interior backup pad (18), the direction that goes up and down is realized to rolling linear guide (19) of three equipartition, every interior backup pad (18) one end all links firmly with base (2), the other end all links firmly with base (13) on the lead screw, lifting base (21) inboard trilateral and three outer backup pad (17) link firmly in addition, outer backup pad (17) keep away from servo motor (1) side and lift subassembly (16) link firmly.
2. The large-stroke vertical screw feed system according to claim 1, wherein the ball screw (11) is directly connected with the servo motor (1), and lifting is realized under the driving of the servo motor (1).
3. A large stroke vertical screw feed system as recited in claim 1 wherein the base (2), lift assembly end cap (16), outer support plate (17), inner support plate (18) are all aluminum.
4. A large stroke vertical screw feed system as claimed in claim 1 wherein the ball screw (11) is a large lead ball screw pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649140.5A CN107327552B (en) | 2017-08-02 | 2017-08-02 | Large-stroke vertical screw feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649140.5A CN107327552B (en) | 2017-08-02 | 2017-08-02 | Large-stroke vertical screw feed system |
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| Publication Number | Publication Date |
|---|---|
| CN107327552A CN107327552A (en) | 2017-11-07 |
| CN107327552B true CN107327552B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710649140.5A Active CN107327552B (en) | 2017-08-02 | 2017-08-02 | Large-stroke vertical screw feed system |
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| CN (1) | CN107327552B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994730B (en) * | 2018-08-10 | 2021-02-02 | 重庆市巨吉机电设备有限公司 | Super-large stroke cutter feeding mechanism |
| CN109138497A (en) * | 2018-10-21 | 2019-01-04 | 济宁市昊通工程机械有限公司 | A kind of safe ladder cage combination unit of engineering adjustable height |
| CN111665142B (en) * | 2020-07-28 | 2023-08-25 | 华北水利水电大学 | Arched beam pressure uniform distribution loading test equipment for building |
| CN213628745U (en) * | 2020-09-25 | 2021-07-06 | 浙江麦信智能装备有限公司 | Lifting assembly |
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| JPH116168A (en) * | 1997-06-16 | 1999-01-12 | Hinode Suido Kiki Kk | Lid for underground structure |
| JP2003021295A (en) * | 2001-07-09 | 2003-01-24 | Sukekawa Tekko Kk | Solid lubricant and device for applying solid lubricant |
| JP2009287584A (en) * | 2008-05-27 | 2009-12-10 | Yamaha Motor Co Ltd | Ball nut, single-axis robot, and electronic component transfer device |
| CN201529839U (en) * | 2009-05-27 | 2010-07-21 | 无锡华联精工机械有限公司 | Cutting torch hoisting mechanism of plasma cutting machine |
| CN104385260A (en) * | 2014-11-21 | 2015-03-04 | 华南理工大学 | Novel four-degree-of-freedom articulated robot structure |
| CN104578562A (en) * | 2014-12-26 | 2015-04-29 | 张家港斯克斯精密机械科技有限公司 | Large-stroke multi-section linear actuator mechanism |
| CN204752083U (en) * | 2015-05-27 | 2015-11-11 | 中航（上海）汽车技术有限公司 | Lead screw elevating system |
| CN207080571U (en) * | 2017-08-02 | 2018-03-09 | 南京理工大学 | A kind of vertical Feed System With Ball Screw of big stroke |
-
2017
- 2017-08-02 CN CN201710649140.5A patent/CN107327552B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116168A (en) * | 1997-06-16 | 1999-01-12 | Hinode Suido Kiki Kk | Lid for underground structure |
| JP2003021295A (en) * | 2001-07-09 | 2003-01-24 | Sukekawa Tekko Kk | Solid lubricant and device for applying solid lubricant |
| JP2009287584A (en) * | 2008-05-27 | 2009-12-10 | Yamaha Motor Co Ltd | Ball nut, single-axis robot, and electronic component transfer device |
| CN201529839U (en) * | 2009-05-27 | 2010-07-21 | 无锡华联精工机械有限公司 | Cutting torch hoisting mechanism of plasma cutting machine |
| CN104385260A (en) * | 2014-11-21 | 2015-03-04 | 华南理工大学 | Novel four-degree-of-freedom articulated robot structure |
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| CN207080571U (en) * | 2017-08-02 | 2018-03-09 | 南京理工大学 | A kind of vertical Feed System With Ball Screw of big stroke |
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| CN107327552A (en) | 2017-11-07 |
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