CN105090408A - Manipulator lubricating device - Google Patents
Manipulator lubricating device Download PDFInfo
- Publication number
- CN105090408A CN105090408A CN201410191723.4A CN201410191723A CN105090408A CN 105090408 A CN105090408 A CN 105090408A CN 201410191723 A CN201410191723 A CN 201410191723A CN 105090408 A CN105090408 A CN 105090408A
- Authority
- CN
- China
- Prior art keywords
- scraping blade
- spiral wall
- mechanical arm
- flow path
- groove
- 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.)
- Granted
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Pivots And Pivotal Connections (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a manipulator lubricating device. The manipulator lubricating device comprises a rod shaft and a nut which are mutually sleeved, wherein a sleeve piece is arranged in the nut; spiral flow passages are arranged on the sleeve piece; an oil filling port and an oil outlet are formed in the sleeve piece; the oil filling port and the oil outlet are connected through the spiral flow passages; a plurality of elastic diaphragms are arranged on the inner walls of the spiral flow passages; scrapers are connected below the elastic diaphragms through connecting rods; the scrapers are movably arranged on a spiral wall among the flow passages, and sealing films are arranged between the scrapers and the spiral wall; grooves in parallel with the spiral flow passages are further formed in the spiral wall, and adjacent scrapers are arranged on the two sides of the grooves in a staggered manner. The manipulator lubricating device can improve the defects of the prior art, improve the waste oil and grease cleaning ability on the basis of automatic lubrication, and improve the lubricating effect.
Description
Technical field
The present invention relates to mechanical arm technical field, especially a kind of mechanical arm lubricating fitting.
Background technique
Mechanical arm is in movement process, and its main transmission part is ball screw.The traditional lubricating system of ball screw uses external force that lubricating grease is injected screw rod, and this mode not only job step is loaded down with trivial details, and also easily destroys the cleanliness of external environment condition in the environment that cleanliness is higher.Chinese invention patent CN101737469B discloses a kind of ball screw and the lubricating fitting thereof with lubricating fitting, achieves the automatic greasing lubrication of ball screw.But this result thoroughly cannot be cleared up used lubricating grease in self-lubricated process, causes the problem of screw rod partial lubrication deficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of mechanical arm lubricating fitting, can solve the deficiencies in the prior art, and self-lubricated basis improves the cleaning ability to waste and old grease, improves lubrication effect.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
A kind of mechanical arm lubricating fitting, comprise bar axle and the nut of socket mutually, external member is provided with in nut, external member is provided with helical flow path, and external member is provided with pouring orifice and oil outlet, pouring orifice is connected by helical flow path with oil outlet, the inwall of described helical flow path is provided with several flexible sheets, the below of flexible sheet is connected with scraping blade by connecting rod, and scraping blade is movably arranged on the spiral wall between runner, is provided with sealing film between scraping blade and spiral wall; Spiral wall is also provided with the groove paralleled with helical flow path, adjacent scraping blade is crisscross arranged in the both sides of groove.
As preferably, described scraping blade comprises bottom, is provided with sawtooth layer above bottom.
As preferably, the sawtooth end on described sawtooth layer is obliquely installed, and the true dip direction of the sawtooth end on adjacent scraping blade is contrary.
As preferably, the choke that the cross section of described groove comprises top and the expansion mouth be positioned at below choke, the ratio of the most imperial palace warp of the minimum diameter of choke and expansion mouth is 1:3 ~ 1:5.
As preferably, described groove is 1:2 ~ 5:7 with the interface width of described spiral wall and the ratio of the width of spiral wall.
The beneficial effect adopting technique scheme to bring is: the present invention is by arranging scraping blade and groove, in the process that grease flows in helical flow path, by the pressure of grease self, extruding flexible sheet, flexible sheet drives scraping blade protruding by connecting rod, clear up the grease remained in screw rod, the grease under cleaning enters in groove, decreases the mixing of new and old grease.Scraping blade is crisscross arranged, and can reduce in " dead band " of scraping blade scraping.The sawtooth layer at scraping blade top can improve the frictional force between scraping blade and screw rod, improves scraping effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention's embodiment.
Fig. 2 is the schematic diagram that in the present invention's embodiment, scraping blade is connected with flexible sheet.
Fig. 3 is the sectional view of the present invention's embodiment further groove.
In figure: 1, bar axle; 2, nut; 3, external member; 4, helical flow path; 5, pouring orifice; 6, oil outlet; 7, flexible sheet; 8, connecting rod; 9, scraping blade; 10, spiral wall; 11, groove; 12, bottom; 13, sawtooth layer; 14, choke; 15, expansion mouth.
Embodiment
The standardized element used in the present invention all can be commercially, special-shaped part all can carry out customized according to specification with the record of accompanying drawing, the concrete Placement of each part all adopts the conventional means such as bolt, rivet, welding, stickup ripe in prior art, is not described in detail in this.
With reference to Fig. 1-3, the present embodiment comprises bar axle 1 and the nut 2 of socket mutually, external member 3 is provided with in nut 2, external member 3 is provided with helical flow path 4, external member 3 is provided with pouring orifice 5 and oil outlet 6, pouring orifice 5 is connected by helical flow path 4 with oil outlet 6, and record existing fully detailed in the patent documentation that said structure is quoted in the introduction, is not described in detail in this.The inwall of described helical flow path 4 is provided with several flexible sheets 7, the below of flexible sheet 7 is connected with scraping blade 9 by connecting rod 8, and scraping blade 9 is movably arranged on the spiral wall 10 between runner 4, is provided with sealing film 11 between scraping blade 9 and spiral wall 10; Spiral wall 10 is also provided with the groove 11 paralleled with helical flow path 4, adjacent scraping blade 9 is crisscross arranged in the both sides of groove 11.Described scraping blade 9 comprises bottom 12, is provided with sawtooth layer 13 above bottom 12.Sawtooth end on described sawtooth layer 13 is obliquely installed, and the true dip direction of the sawtooth end on adjacent scraping blade 9 is contrary.The cross section of described groove 11 comprises the choke 14 at top and the expansion mouth 15 be positioned at below choke 14, the minimum diameter of choke 14 is preferably 1:4 with the ratio of the most imperial palace warp of expansion mouth 15, suitable hole can be formed in groove 11, be convenient to waste and old grease and enter.Described groove 11 is 11:20 with the interface width of described spiral wall 10 and the ratio of the width of spiral wall 10, can ensure the uniformity of new grease uniform application.The present embodiment is by arranging scraping blade 9 and groove 11, in the process that grease flows in helical flow path 4, by the pressure of grease self, extruding flexible sheet 7, flexible sheet 7 drives scraping blade 9 protruding by connecting rod 8, clear up the grease remained in screw rod, the grease under cleaning enters in groove 11, decreases the mixing of new and old grease.Scraping blade 9 is crisscross arranged, and can reduce in " dead band " of scraping blade 9 scraping.The sawtooth layer 13 at scraping blade 9 top can improve the frictional force between scraping blade 9 and screw rod, improves scraping effect.
Wherein, flexible sheet 7 and sealing film 11 all adopt high elasticity silica gel to make.
Sawtooth layer 13 is made up of nitrile butadiene rubber, and arranged outside has teflon protective layer, and the length L of sawtooth end and the pass of its inclined angle alpha are
L＝k/cotα
Wherein k is proportionality constant, determines according to grease model and lubricating requirement, generally can be decided to be 3.5.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. a mechanical arm lubricating fitting, comprise bar axle (1) and the nut (2) of socket mutually, external member (3) is provided with in nut (2), external member (3) is provided with helical flow path (4), external member (3) is provided with pouring orifice (5) and oil outlet (6), pouring orifice (5) is connected by helical flow path (4) with oil outlet (6), it is characterized in that: the inwall of described helical flow path (4) is provided with several flexible sheets (7), the below of flexible sheet (7) is connected with scraping blade (9) by connecting rod (8), scraping blade (9) is movably arranged on the spiral wall (10) between runner (4), sealing film (11) is provided with between scraping blade (9) and spiral wall (10), spiral wall (10) is also provided with the groove (11) paralleled with helical flow path (4), adjacent scraping blade (9) is crisscross arranged in the both sides of groove (11).
2. mechanical arm lubricating fitting according to claim 1, is characterized in that: described scraping blade (9) comprises bottom (12), and bottom (12) top is provided with sawtooth layer (13).
3. mechanical arm lubricating fitting according to claim 1, is characterized in that: the sawtooth end on described sawtooth layer (13) is obliquely installed, and the true dip direction of the sawtooth end on adjacent scraping blade (9) is contrary.
4. mechanical arm lubricating fitting according to claim 1, it is characterized in that: the cross section of described groove (11) comprises the choke (14) at top and is positioned at the expansion mouth (15) of choke (14) below, the ratio of the most imperial palace warp of the minimum diameter of choke (14) and expansion mouth (15) is 1:3 ~ 1:5.
5. mechanical arm lubricating fitting according to claim 1, is characterized in that: described groove (11) is 1:2 ~ 5:7 with the ratio of the interface width of described spiral wall (10) and the width of spiral wall (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191723.4A CN105090408B (en) | 2014-05-08 | 2014-05-08 | A kind of mechanical arm lubricating arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191723.4A CN105090408B (en) | 2014-05-08 | 2014-05-08 | A kind of mechanical arm lubricating arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090408A true CN105090408A (en) | 2015-11-25 |
| CN105090408B CN105090408B (en) | 2017-11-07 |
Family
ID=54571472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410191723.4A Active CN105090408B (en) | 2014-05-08 | 2014-05-08 | A kind of mechanical arm lubricating arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090408B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1678845A (en) * | 2002-08-28 | 2005-10-05 | Thk株式会社 | Ball screw |
| JP2006038004A (en) * | 2004-07-23 | 2006-02-09 | Nsk Ltd | Ball screw device |
| CN101230903A (en) * | 2007-01-23 | 2008-07-30 | 上银科技股份有限公司 | Ball screw anti-dust device |
| CN101737469A (en) * | 2008-11-11 | 2010-06-16 | 上银科技股份有限公司 | Ball screw with lubricating device and lubricating device thereof |
| US20120266703A1 (en) * | 2005-03-28 | 2012-10-25 | Yung-Tsai Chuo | Ball screw with an oil-storage unit |
| CN203822987U (en) * | 2014-05-08 | 2014-09-10 | 宁夏巨能机器人系统有限公司 | Mechanical arm lubricating device |
-
2014
- 2014-05-08 CN CN201410191723.4A patent/CN105090408B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1678845A (en) * | 2002-08-28 | 2005-10-05 | Thk株式会社 | Ball screw |
| JP2006038004A (en) * | 2004-07-23 | 2006-02-09 | Nsk Ltd | Ball screw device |
| US20120266703A1 (en) * | 2005-03-28 | 2012-10-25 | Yung-Tsai Chuo | Ball screw with an oil-storage unit |
| CN101230903A (en) * | 2007-01-23 | 2008-07-30 | 上银科技股份有限公司 | Ball screw anti-dust device |
| CN101737469A (en) * | 2008-11-11 | 2010-06-16 | 上银科技股份有限公司 | Ball screw with lubricating device and lubricating device thereof |
| CN203822987U (en) * | 2014-05-08 | 2014-09-10 | 宁夏巨能机器人系统有限公司 | Mechanical arm lubricating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105090408B (en) | 2017-11-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 750021 the Ningxia Hui Autonomous Region concentric Yinchuan City Development Zone, No. 296 South Street Patentee after: Ningxia giant robot Limited by Share Ltd Address before: 750021 the Ningxia Hui Autonomous Region concentric Yinchuan City Development Zone, No. 296 South Street Patentee before: Ningxia Juneng Robot System Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |