CN113321142A - High-precision planet roller screw leveling supporting leg - Google Patents
High-precision planet roller screw leveling supporting leg Download PDFInfo
- Publication number
- CN113321142A CN113321142A CN202110693668.9A CN202110693668A CN113321142A CN 113321142 A CN113321142 A CN 113321142A CN 202110693668 A CN202110693668 A CN 202110693668A CN 113321142 A CN113321142 A CN 113321142A
- Authority
- CN
- China
- Prior art keywords
- roller screw
- supporting leg
- servo motor
- leg
- screw rod
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/04—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- 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
Abstract
The invention provides a high-precision planet roller screw leveling supporting leg which comprises a ball head supporting leg; the ball head support leg is rotatably arranged at the front end of the telescopic rod, the rear end of the telescopic rod is fixedly arranged on the roller screw rod group, the roller screw rod group is driven by a servo motor, and the telescopic rod is arranged in the supporting leg shell in a matched mode and moves along the supporting leg shell. The invention realizes large-stroke accurate control by utilizing the integrated servo motor, and can effectively meet the integral high-precision requirement; the installation space is saved, the weight is integrally reduced, and the installation process is simplified; the pure electric control is utilized, the operation is simplified, the integrated operation of the whole vehicle is convenient, and great assistance is provided for the equipment needing electric control.
Description
Technical Field
The invention relates to a high-precision planet roller screw leveling support leg.
Background
The crane, the overhead working truck, the elevating fire truck and other equipment are generally provided with supporting legs so as to ensure that the equipment has enough safety and stability in work and improve the safety factor of the tipping of the whole truck. The support legs are usually arranged on two sides of the bottom of the equipment chassis, and the number of the support legs is usually four. During operation, the supporting legs are extended, the whole equipment is lifted by each supporting leg, the tires are separated from the ground, the whole equipment is completely supported by the supporting legs, and the ground level of the equipment is kept, so that the anti-overturning capacity of the equipment during operation can be improved. Modern leveling landing leg adopts the pneumatic cylinder form more, can not realize accurate control, and the pneumatic cylinder needs cooperation such as subsidiary hydraulic tank, pump station to use simultaneously, can not realize effectively utilizing the space, and the pneumatic cylinder has sealed relevant problem such as simultaneously.
Disclosure of Invention
In order to solve the technical problems, the invention provides the high-precision planet roller screw leveling support leg which realizes large-stroke accurate control by utilizing an integrated servo motor and can effectively meet the integral high-precision requirement.
The invention is realized by the following technical scheme.
The invention provides a high-precision planet roller screw leveling supporting leg which comprises a ball head supporting leg; the ball head support leg is rotatably arranged at the front end of the telescopic rod, the rear end of the telescopic rod is fixedly arranged on the roller screw rod group, the roller screw rod group is driven by a servo motor, and the telescopic rod is arranged in the supporting leg shell in a matched mode and moves along the supporting leg shell.
The servo motor drives the roller screw rod group to be driven by the transmission gear.
And a planetary reducer is arranged at the output front stage of the servo motor.
The rear end of the roller screw rod group passes through the transmission gear and is arranged in a bearing, and the bearing is arranged in the supporting leg shell close to the transmission gear.
And the rear end of the roller screw rod group is provided with a disc spring which is positioned at the rear end of the bearing.
And the rear end of the supporting leg shell is provided with a proximity switch which is arranged right opposite to the disc spring.
The roller screw rod group is a planetary roller screw rod group, and the planetary teeth of the roller screw rod group drive the telescopic rod to rotate and stretch.
The servo motor and the telescopic rod are parallel and opposite to each other.
The invention has the beneficial effects that: the integrated servo motor is utilized to realize large-stroke accurate control, and the integral high-precision requirement can be effectively met; the installation space is saved, the weight is integrally reduced, and the installation process is simplified; the pure electric control is utilized, the operation is simplified, the integrated operation of the whole vehicle is convenient, and great assistance is provided for the equipment needing electric control.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: the device comprises a proximity switch 1, a disc spring 2, a bearing 3, a transmission gear 4, a roller screw rod group 5, a telescopic rod 6, a supporting leg shell 7, a ball head supporting leg 8, a planetary reducer 9 and a servo motor 10.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example 1
The high-precision planetary roller screw leveling support leg shown in the figure 1 comprises a ball head support leg 8; the rotatable front end of installing at telescopic link 6 of bulb stabilizer blade 8, 6 rear end fixed mounting of telescopic link 5 in roller lead screw group, roller lead screw group 5 is driven by servo motor 10, and telescopic link 6 cooperation is installed in landing leg shell 7 and is removed along landing leg shell 7.
Example 2
Based on embodiment 1, the servo motor 10 drives the roller screw rod group 5 to be driven by the transmission gear 4.
Example 3
In embodiment 1, a planetary reducer 9 is provided at the output front stage of the servo motor 10.
Example 4
Based on embodiment 2, the rear end of the roller screw rod group 5 passes through the transmission gear 4 and is arranged in the bearing 3, and the bearing 3 is arranged in the leg shell 7 next to the transmission gear 4.
Example 5
Based on embodiment 4, the rear end of the roller screw rod group 5 is provided with the disc spring 2, and the disc spring 2 is positioned at the rear end of the bearing 3.
Example 6
Based on embodiment 5, the rear end of the leg shell 7 is provided with a proximity switch 1 which is arranged opposite to the disc spring 2.
Example 7
Based on embodiment 1, the roller screw set 5 is a planetary roller screw set, and the planetary teeth thereof drive the telescopic rod 6 to rotate and extend.
Example 8
Based on embodiment 1, the servo motor 10 and the telescopic rod 6 are parallel and opposite to each other.
Example 9
Based on the above embodiment, specifically, include proximity switch 1, dish spring 2, bearing 3, drive gear 4, roller lead screw group 5, telescopic link 6, landing leg shell 7, bulb stabilizer blade 8, planetary reducer 9 and servo motor 10. The disc spring 2 provides a compression stroke after being stressed so as to confirm the stretching in place of the proximity switch 1; the bearing 3 and the transmission gear 4 realize the transmission of the whole stress and simultaneously compress the length space; the ball screw group 5 drives the telescopic rod 6 to provide the whole body for large-stroke expansion; the supporting leg shell 7 provides a track which is integrally installed and extends and retracts with the inner telescopic rod 6; the ball head support leg 8 realizes integral self-adaptive leveling; the planetary reducer 9 reduces the rotation speed of the motor and increases the torque; the servo motor 10 realizes the accurate control of the leveling support leg and provides initial rotating speed and torque.
The main working principle is as follows: after the power is switched on, the servo motor is controlled to output the rotating speed and the torque; the torque is increased through a planetary reducer, and the rotating speed is reduced; driving the transmission gear and the bearing to rotate, and transmitting torque and rotating speed to the planetary roller screw; then the planet roller screw nut is driven to stretch forwards, and the stretching is realized because the planet roller screw nut and the stretching rod are connected into a whole; after the telescopic type ground surface is stretched to the ground, the ball head support is self-adaptive to the gradient of the ground surface, the whole body is compacted on the ground surface, and the ground surface generates a reaction force; the planetary roller screw generates pressure on the disc spring to compress the disc spring, and the planetary roller screw integrally slides upwards to a set stroke; the proximity switch senses the end of the planetary roller screw rod and feeds back an electric signal; after the stretching is confirmed to be in place, the motor can stop outputting the rotating speed and the torque, the self-locking is realized, and the whole stretching process is finished; the servo motor can accurately control the whole large stroke, and high precision requirements are met.
Claims (8)
1. The utility model provides a high accuracy planet roller lead screw leveling landing leg, includes bulb stabilizer blade (8), its characterized in that: bulb stabilizer blade (8) rotatable the front end of installing in telescopic link (6), and telescopic link (6) rear end fixed mounting is in roller lead screw group (5), and roller lead screw group (5) are driven by servo motor (10), and telescopic link (6) cooperation is installed in landing leg shell (7) and is removed along landing leg shell (7).
2. The high precision planetary roller screw leveling leg of claim 1 wherein: the servo motor (10) drives the roller screw rod group (5) to be driven by the transmission gear (4).
3. The high precision planetary roller screw leveling leg of claim 1 wherein: and a planetary reducer (9) is arranged at the output front stage of the servo motor (10).
4. The high precision planetary roller screw leveling leg of claim 2 wherein: the rear end of the roller screw rod group (5) penetrates through the transmission gear (4) and is arranged in the bearing (3), and the bearing (3) is arranged in the supporting leg shell (7) by abutting against the transmission gear (4).
5. The high precision planetary roller screw leveling leg of claim 4 wherein: and the rear end of the roller screw rod group (5) is provided with a disc spring (2), and the disc spring (2) is positioned at the rear end of the bearing (3).
6. The high precision planetary roller screw leveling leg of claim 5 wherein: the rear end of the supporting leg shell (7) is provided with a proximity switch (1) which is arranged right opposite to the disc spring (2).
7. The high precision planetary roller screw leveling leg of claim 1 wherein: the roller screw rod group (5) is a planetary roller screw rod group, and the planetary teeth of the roller screw rod group drive the telescopic rod (6) to rotate and stretch.
8. The high precision planetary roller screw leveling leg of claim 1 wherein: the servo motor (10) and the telescopic rod (6) are parallel and opposite to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110693668.9A CN113321142A (en) | 2021-06-22 | 2021-06-22 | High-precision planet roller screw leveling supporting leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110693668.9A CN113321142A (en) | 2021-06-22 | 2021-06-22 | High-precision planet roller screw leveling supporting leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113321142A true CN113321142A (en) | 2021-08-31 |
Family
ID=77424358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110693668.9A Pending CN113321142A (en) | 2021-06-22 | 2021-06-22 | High-precision planet roller screw leveling supporting leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113321142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892820A (en) * | 2022-04-25 | 2022-08-12 | 西安左右成智能装备有限公司 | High-precision intelligent leveling supporting leg with internal limiting function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203490536U (en) * | 2013-10-22 | 2014-03-19 | 安徽恒诺机电科技有限公司 | Four link type expansion leveling control system |
| CN204150020U (en) * | 2014-08-13 | 2015-02-11 | 曾坤富 | A kind of empty leg detecting device of leveling supporting legs |
| CN204775177U (en) * | 2015-07-24 | 2015-11-18 | 南京晨光集团有限责任公司 | Big load leveling landing leg based on ball |
| CN106949346A (en) * | 2017-04-10 | 2017-07-14 | 哈尔滨工业大学 | A kind of leveling support leg based on planetary roller screw |
| CN106979445A (en) * | 2017-05-17 | 2017-07-25 | 贵州航天天马机电科技有限公司 | A kind of highly reliable holding leveling supporting legs of precision |
| CN110467119A (en) * | 2019-07-11 | 2019-11-19 | 中联重科股份有限公司 | Control method, system and crane for vertical leg expansion, supporting leg expansion |
| CN110871841A (en) * | 2019-12-16 | 2020-03-10 | 北京理工大学 | Push-down electric power steering device for commercial vehicle |
| CN111923874A (en) * | 2020-08-12 | 2020-11-13 | 北京航天发射技术研究所 | Electric cylinder supporting leg, vehicle and quick leveling method |
-
2021
- 2021-06-22 CN CN202110693668.9A patent/CN113321142A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203490536U (en) * | 2013-10-22 | 2014-03-19 | 安徽恒诺机电科技有限公司 | Four link type expansion leveling control system |
| CN204150020U (en) * | 2014-08-13 | 2015-02-11 | 曾坤富 | A kind of empty leg detecting device of leveling supporting legs |
| CN204775177U (en) * | 2015-07-24 | 2015-11-18 | 南京晨光集团有限责任公司 | Big load leveling landing leg based on ball |
| CN106949346A (en) * | 2017-04-10 | 2017-07-14 | 哈尔滨工业大学 | A kind of leveling support leg based on planetary roller screw |
| CN106979445A (en) * | 2017-05-17 | 2017-07-25 | 贵州航天天马机电科技有限公司 | A kind of highly reliable holding leveling supporting legs of precision |
| CN110467119A (en) * | 2019-07-11 | 2019-11-19 | 中联重科股份有限公司 | Control method, system and crane for vertical leg expansion, supporting leg expansion |
| CN110871841A (en) * | 2019-12-16 | 2020-03-10 | 北京理工大学 | Push-down electric power steering device for commercial vehicle |
| CN111923874A (en) * | 2020-08-12 | 2020-11-13 | 北京航天发射技术研究所 | Electric cylinder supporting leg, vehicle and quick leveling method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892820A (en) * | 2022-04-25 | 2022-08-12 | 西安左右成智能装备有限公司 | High-precision intelligent leveling supporting leg with internal limiting function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210831 |
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| RJ01 | Rejection of invention patent application after publication |