CN116667594A - Two-stage electric push rod - Google Patents
Two-stage electric push rod Download PDFInfo
- Publication number
- CN116667594A CN116667594A CN202310671250.7A CN202310671250A CN116667594A CN 116667594 A CN116667594 A CN 116667594A CN 202310671250 A CN202310671250 A CN 202310671250A CN 116667594 A CN116667594 A CN 116667594A
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- bearing
- guide
- key
- guide key
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a two-stage electric push rod, which aims to solve the problems that the existing electric push rod is limited in installation space and vehicle-mounted electric energy, and the existing single-stage electric push rod cannot meet the requirements because the existing single-stage electric push rod has small closing height and maximum unfolding height aiming at the use requirements; the lifting mechanical device comprises a motor, a speed reducer, a power transmission box, a driven gear, a key, a lock nut, a first bearing, a first ball nut, a first guide key, a ball screw, a first sliding sleeve, a first outer sleeve, a sealing ring, a connecting plate, a transmission shaft, a driving gear, a second bearing, a bearing seat, a second ball nut, a hollow ball screw, a second sliding sleeve, a third sliding sleeve, a second outer sleeve, an upper top plate and a second guide key.
Description
Technical Field
The invention belongs to the field of electric mechanical devices in lifting, and particularly relates to a secondary electric push rod.
Background
In the current industries of lifting equipment and the like, the lifted objects often need to be lifted to different heights for working according to the needs.
In some application fields, the electric push rod used in the prior art is limited by installation space and vehicle-mounted electric energy, and aiming at the use requirement, the starting electric push rod has small closing height and maximum unfolding height, so that the existing single-stage electric push rod cannot meet the requirement;
disclosure of Invention
In order to solve the limitations of the installation space and the vehicle-mounted electric energy of the electric push rod in the prior art, aiming at the use requirement, the starting electric push rod has small closing height and maximum unfolding height, and the existing single-stage electric push rod cannot meet the requirement.
The invention provides a two-stage electric push rod, which comprises a motor, a speed reducer, a power transmission box and a speed reducer arranged outside the power transmission box, wherein the speed reducer is connected with the motor and comprises three first-stage push rods which are arranged in parallel, and the first-stage push rods on two sides have the same structure;
the middle of the power transmission box is internally provided with a driving gear, and two sides of the driving gear are provided with driven gears which are meshed with each other; the output shaft of the speed reducer is connected with a transmission shaft, the transmission shaft is connected with a driving gear, a key is arranged between the driving gear and a driven gear, and the driving gear and the driven gear are matched with each other through the key;
the first-stage push rods on the two sides comprise ball screws, a first outer sleeve, a first guide key, a first ball nut, a first sliding sleeve and a first bearing;
the power transmission box is fixedly provided with a first outer sleeve, a ball screw is arranged in the first outer sleeve through a first bearing, the first sliding sleeve is connected with a first ball nut, a first guide key is arranged at the lower part of the first sliding sleeve, a guide groove on an inner hole of the first outer sleeve is connected with the first sliding sleeve through the first guide key and realizes sliding guide, and a connecting plate is arranged at the top of the first sliding sleeve;
the middle first-stage push rod comprises a second bearing, a second outer sleeve, a first guide key, a first bearing, a first guide key, a bearing seat, a third sliding sleeve, a hollow ball screw, a second guide key, a second ball nut and a second sliding sleeve;
the power transmission box is fixedly provided with a second outer sleeve, a third sliding sleeve is arranged in the second outer sleeve, a bearing seat is arranged below the third sliding sleeve, a second sliding sleeve is arranged above the third sliding sleeve, a hollow ball screw is arranged in the third sliding sleeve, the hollow ball screw is arranged on the bearing seat through a first bearing, the second sliding sleeve is connected with a second ball nut, a first guide key is arranged at the lower part of the second sliding sleeve, and the first guide key at the lower part of the second sliding sleeve is matched with a guide groove on an inner hole of the third sliding sleeve to realize sliding guide;
the bottom of the transmission shaft is provided with a second bearing, the upper part of the transmission shaft is provided with a second guide key, and the second guide key on the transmission shaft is matched with a wire groove on an inner hole of the hollow ball screw and realizes sliding guide;
an upper top plate is arranged above the second sliding sleeve.
The first ball nut is matched with the ball screw.
The second ball nut is matched with the hollow ball screw.
A locking nut is arranged to lock the first bearing and the second bearing.
And sealing rings are arranged at the bottoms of the first sliding sleeve and the second sliding sleeve.
The invention has the characteristics of simple structure, safety, reliability, high rotation efficiency, energy conservation, environmental protection, small closing height, maximum unfolding height, stable installation and the like, and is mainly applied to lifting mechanical equipment with too low installation space and high lifting height.
Drawings
Fig. 1 is a closed state intent of the present invention.
Fig. 2 is an invention deployment state intent.
Reference numerals illustrate: 1. a motor; 2. a speed reducer; 3. a power transmission case; 4. a driven gear; 5. a key; 6. a lock nut; 7. a first bearing; 8. a first ball nut; 9, a first guide key; 10, a ball screw; 11, a first sliding sleeve; 12, a first outer sleeve; 13, sealing rings; 14, connecting a plate; 15, a transmission shaft; 16, a driving gear; 17, a second bearing; 18, bearing seats, 19, second ball nuts; 20, a hollow ball screw; 21, a step of; the second sliding sleeve; 22, a third sliding sleeve; 23, a second outer sleeve; 24, upper top plate; 25, a second guide key;
Detailed Description
As shown in fig. 1 and 2, a secondary electric push rod comprises a motor 1, a speed reducer 2, a power transmission box 3, wherein the speed reducer 2 is arranged outside the power transmission box 3, the speed reducer 2 is connected with the motor 1, and comprises three primary push rods which are arranged in parallel, and the primary push rods on two sides have the same structure;
the middle of the power transmission box 3 is internally provided with a driving gear 16, and two sides of the driving gear 16 are provided with driven gears 4 which are meshed with each other; the output shaft of the speed reducer 2 is connected with a transmission shaft 15, the transmission shaft 15 is connected with a driving gear 16, a key 5 is arranged between the driving gear 16 and the driven gear 4, and the driving gear and the driven gear are matched with each other through the key 5;
the first-stage push rods on the two sides comprise a ball screw 10, a first outer sleeve 12, a first guide key 9, a first ball nut 8, a first sliding sleeve 11 and a first bearing 7;
the power transmission box 3 is fixedly provided with a first outer sleeve 12, the power transmission box 3 is internally provided with a ball screw 10 through a first bearing 7, the first sliding sleeve 11 is connected with a first ball nut 8, the lower part of the first sliding sleeve 11 is provided with a first guide key 9, a guide groove on an inner hole of the first outer sleeve 12 is connected with the first sliding sleeve 11 through the first guide key 9 and realizes sliding guide, and the top of the first sliding sleeve 11 is provided with a connecting plate 14;
the middle primary push rod comprises a second bearing 17, a second outer sleeve 23, a first guide key 9, a first bearing 7, a first guide key 9, a bearing seat 18, a third sliding sleeve 22, a hollow ball screw 20, a second guide key 25, a second ball nut 19 and a second sliding sleeve 21;
the power transmission case 3 is fixedly provided with a second outer sleeve 23, a third sliding sleeve 22 is arranged in the second outer sleeve 23, a bearing seat 18 is arranged below the third sliding sleeve 22, a second sliding sleeve 21 is arranged above the third sliding sleeve 22, a hollow ball screw 20 is arranged in the third sliding sleeve 22, the hollow ball screw 20 is arranged on the bearing seat 18 through a first bearing 7, the second sliding sleeve 21 is connected with a second ball nut 19, a first guide key 9 is arranged at the lower part of the second sliding sleeve 21, and the first guide key 9 at the lower part of the second sliding sleeve 21 is matched with a guide groove on an inner hole of the third sliding sleeve 22 to realize sliding guide;
the bottom of the transmission shaft 15 is provided with a second bearing 17, the upper part of the transmission shaft 15 is provided with a second guide key 25, and the second guide key 25 on the transmission shaft 15 is matched with a wire groove on an inner hole of the hollow ball screw 20 to realize sliding guide;
an upper top plate 24 is arranged above the second sliding sleeve 21.
The first ball nut 8 is matched with a ball screw 10.
The second ball nut 19 is matched with a hollow ball screw 20.
A locking nut 6 is arranged to lock the first bearing 7 and the second bearing 17.
And sealing rings are arranged at the bottoms of the first sliding sleeve 11 and the second sliding sleeve 21.
When in installation: the motor 1 is connected with the speed reducer 2, the speed reducer 2 is arranged on the power transmission box 3, an output shaft of the speed reducer 2 is connected with the transmission shaft 15, a driving gear 4 is arranged on the transmission shaft 15, a key 5 is arranged in the middle, a driven gear 4 is arranged at the lower ends of the ball screws 10 on two sides, the key 5 is arranged in the middle, a driving gear 16 is matched with the driven gears 4 on two sides through the key 5, the ball screws 10 on two sides are arranged on the power transmission box 3 through a first bearing 7, the first bearing 7 is locked by a locking nut 6, the first ball nut 8 is matched with the ball screws 10 on two sides, a first sliding sleeve 11 is connected with the first ball nut 8, a first guide key 9 is arranged at the lower part of the first sliding sleeve 11, the first sliding sleeve 12 is matched with a guide groove on an inner hole of the first outer sleeve 12 and realizes sliding guide, the first outer sleeve 12 is fixedly arranged on the power transmission box 3, and the upper end of the first sliding sleeve 11 is fixedly arranged on the connecting plate 14;
a middle push rod part, a transmission shaft 15 is arranged on the power transmission case 3 through a second bearing 17 and is locked by a locking nut 6; the upper part of the transmission shaft 15 is provided with a second guide key 25 which is matched with a guide groove on the inner hole of the hollow ball screw 20 and realizes sliding guide; the lower part of the hollow ball screw 20 is arranged on a bearing seat 18 through a first bearing 7, the bearing seat 18 is connected with a third sliding sleeve 22, and the upper end of the third sliding sleeve 22 is fixedly arranged on the connecting plate 14. The hollow ball screw 20 is provided with a second ball nut 19 matched with the second sliding sleeve 21, the lower part of the second sliding sleeve 21 is also provided with a guide key 9 which is matched with a guide groove on the inner hole of the third sliding sleeve 22 to realize sliding guide, and the upper part of the second sliding sleeve 21 is provided with an upper top plate 24 for installing a load; the third sliding sleeve 22 is provided with a second outer sleeve 23 outside, and the lower part of the second outer sleeve 23 is fixedly arranged on the power transmission case 3.
When in use, the utility model is characterized in that: the motor 1 drives the speed reducer 2 to rotate, the speed reducer 2 drives the transmission shaft 15 to rotate, the driving gear 16 drives the driven gears 4 on two sides to rotate, and the ball screws 10 on two sides are driven to rotate, and the first ball nuts 8 matched with the ball screws 10 on two sides and the first sliding sleeves 11 connected with the ball nuts 8 only move vertically in a straight line because the guide keys 9 on the lower parts of the first sliding sleeves 11 connected with the first ball nuts 8 are matched with the guide grooves on the inner holes of the first outer sleeves 12 and realize sliding guide; because the upper end of the third sliding sleeve 22 of the middle push rod is fixedly arranged on the connecting plate 14, the first sliding sleeve 11, two sides of which are connected with the first ball nut 8, drives the middle push rod to move up and down linearly while doing up and down linear motion; simultaneously, the transmission shaft 15 rotates, the hollow screw 20 is driven to rotate through a second guide key 25 on the transmission shaft and a guide groove on an inner hole of the hollow screw 20, and similarly, the second ball nut 19 matched with the hollow ball screw 20 and the second sliding sleeve 21 connected with the second ball nut can only move up and down in a straight line due to the fact that the guide key 9 at the lower part of the second sliding sleeve 21 connected with the second ball nut is matched with the guide groove on the inner hole of the third sliding sleeve 22 and realizes sliding guide; at this time, the pushing rods at two sides are unfolded to drive the middle pushing rod to ascend, and the middle pushing rod is unfolded at the same time, so that the function of the secondary pushing rod is realized.
Claims (5)
1. The utility model provides a second grade electric putter, includes motor (1), speed reducer (2), power transmission case (3) are equipped with speed reducer (2) outward, motor (1), its characterized in that are connected to speed reducer (2): the device comprises three first-stage push rods which are arranged in parallel, wherein the first-stage push rods on two sides have the same structure;
a driving gear (16) is arranged in the middle of the power transmission box (3), and driven gears (4) are arranged on two sides of the driving gear (16) and meshed with each other; the output shaft of the speed reducer (2) is connected with a transmission shaft (15), the transmission shaft (15) is connected with a driving gear (16), a key (5) is arranged between the driving gear (16) and the driven gear (4), and the driving gear and the driven gear are matched with each other through the key (5);
the first-stage push rods at two sides comprise ball screws (10), a first outer sleeve (12), a first guide key (9), a first ball nut (8), a first sliding sleeve (11) and a first bearing (7);
the power transmission box (3) is fixedly provided with a first outer sleeve (12), the power transmission box (3) is internally provided with a ball screw (10) through a first bearing (7) in the first outer sleeve (12), a first sliding sleeve (11) is connected with a first ball nut (8), the lower part of the first sliding sleeve (11) is provided with a first guide key (9), a guide groove on an inner hole of the first outer sleeve (12) is connected with the first sliding sleeve (11) through the first guide key (9) and realizes sliding guide, and the top of the first sliding sleeve (11) is provided with a connecting plate (14);
the middle first-stage push rod comprises a second bearing (17), a second outer sleeve (23), a first guide key (9), a first bearing (7), the first guide key (9), a bearing seat (18), a third sliding sleeve (22), a hollow ball screw (20), a second guide key (25), a second ball nut (19) and a second sliding sleeve (21);
the power transmission box (3) is fixedly provided with a second outer sleeve (23), a third sliding sleeve (22) is arranged in the second outer sleeve (23), a bearing seat (18) is arranged below the third sliding sleeve (22), a second sliding sleeve (21) is arranged above the third sliding sleeve, a hollow ball screw (20) is arranged in the third sliding sleeve (22), the hollow ball screw (20) is arranged on the bearing seat (18) through a first bearing (7), the second sliding sleeve (21) is connected with a second ball nut (19), a first guide key (9) is arranged at the lower part of the second sliding sleeve (21), and the first guide key (9) at the lower part of the second sliding sleeve (21) is matched with a guide groove on an inner hole of the third sliding sleeve (22) to realize sliding guide;
the bottom of the transmission shaft (15) is provided with a second bearing (17), the upper part of the transmission shaft (15) is provided with a second guide key (25), and the second guide key (25) on the transmission shaft (15) is matched with a wire groove on an inner hole of the hollow ball screw (20) to realize sliding guide;
an upper top plate (24) is arranged above the second sliding sleeve (21).
2. A two-stage electric putter as set forth in claim 1 wherein: the first ball nut (8) is matched with the ball screw (10).
3. A two-stage electric putter as set forth in claim 1 wherein: the second ball nut (19) is matched with the hollow ball screw (20).
4. A two-stage electric putter as set forth in claim 1 wherein: a locking nut (6) is arranged to lock the first bearing (7) and the second bearing (17).
5. A two-stage electric putter as set forth in claim 1 wherein: and sealing rings are arranged at the bottoms of the first sliding sleeve (11) and the second sliding sleeve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310671250.7A CN116667594A (en) | 2023-06-08 | 2023-06-08 | Two-stage electric push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310671250.7A CN116667594A (en) | 2023-06-08 | 2023-06-08 | Two-stage electric push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116667594A true CN116667594A (en) | 2023-08-29 |
Family
ID=87720397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310671250.7A Pending CN116667594A (en) | 2023-06-08 | 2023-06-08 | Two-stage electric push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116667594A (en) |
-
2023
- 2023-06-08 CN CN202310671250.7A patent/CN116667594A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109915567B (en) | Multistage synchronous lead screw push rod mechanism | |
| CN201656668U (en) | Electric push rod for overload protection of disk spring | |
| CN110255419B (en) | Ball screw electric cylinder | |
| CN113972784A (en) | Multistage electric cylinder structure with single lead screw pair driving multiple lead screw nuts | |
| CN116667594A (en) | Two-stage electric push rod | |
| CN110242718A (en) | A kind of 2 grades of electric jar for bearing ball silk bar | |
| CN109081258B (en) | Heavy-duty type multistage spiral lifting device | |
| CN213546050U (en) | Double-rod installation type transformer | |
| CN108670603B (en) | Transmission device and electric wheelchair | |
| CN102654183A (en) | Rotary-reciprocating linear converting device | |
| CN209041032U (en) | Impeller locking mechanism and wind power generating set for wind power generating set | |
| CN113719590A (en) | Manual and electric driven gearbox | |
| CN114017629B (en) | Lifting mast | |
| CN111432583B (en) | MPPT controller convenient to overhaul | |
| CN114604784A (en) | Arm cylinder and square box integrated structure of crane | |
| CN114086816B (en) | Multi-section lifting mast | |
| CN111180854A (en) | Self-rotating lifting rod | |
| CN101699750A (en) | Vertical foldable mounting device for solar receivers | |
| CN201129331Y (en) | Large magnification ratio mechanical self-locking rising upright mechanism | |
| CN115158009A (en) | Direct-drive electric cylinder structure of automobile power takeoff | |
| CN114195037B (en) | Double-layer ball screw electric cylinder | |
| CN218678700U (en) | Switching mechanism for electric cylinder and electric cylinder | |
| CN205026026U (en) | Latent oily electric screw bar pump reduction gear | |
| CN113676021B (en) | Assembly fixture of frequency converter power module | |
| CN219394595U (en) | External self-locking device of gear motor |
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 |