CN203822987U - Mechanical arm lubricating device - Google Patents
Mechanical arm lubricating device Download PDFInfo
- Publication number
- CN203822987U CN203822987U CN201420231935.6U CN201420231935U CN203822987U CN 203822987 U CN203822987 U CN 203822987U CN 201420231935 U CN201420231935 U CN 201420231935U CN 203822987 U CN203822987 U CN 203822987U
- Authority
- CN
- China
- Prior art keywords
- scraping blade
- mechanical arm
- spiral wall
- groove
- arm lubricating
- 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.)
- Expired - Lifetime
Links
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000007790 scraping Methods 0.000 claims description 36
- 239000012528 membrane Substances 0.000 abstract 3
- 239000004519 grease Substances 0.000 description 16
- 239000010410 layer Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm lubricating device. The mechanical arm lubricating device comprises a rod shaft (1) and a nut (2) which are connected with each other in a sleeved mode. A sleeve piece (3) is arranged in the nut (2), a spiral flow channel (4) is formed in the sleeve piece (3), the sleeve piece (3) is provided with an oil filling port (5) and an oil outlet (6), and the oil filling port (5) and the oil outlet (6) are connected through the spiral flow channel (4). The mechanical arm lubricating device is characterized in that a plurality of elastic membranes (7) are arranged on the inner wall of the spiral flow channel (4), a scraper (9) is connected below each elastic membrane (7) through a connecting rod (8), the scrapers (9) are movably arranged on a spiral wall (10) between the portions of the flow channel (4), and a sealing membrane (11) is arranged between each scraper (9) and the spiral wall (10); the spiral wall (10) is further provided with a groove (11) parallel with the spiral flow channel (4), and the adjacent scrapers (9) are arranged on the two sides of the groove (11) in a staggered mode.
Description
Technical field
The utility model 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 is to use external force that lubricating grease is injected to screw rod, and this mode not only job step is loaded down with trivial details, and in the higher environment of cleanliness, also easily destroys the cleanliness of external environment condition.Chinese invention patent CN101737469B discloses a kind of ball screw and lubricating fitting thereof with lubricating fitting, and the automatic greasing of having realized ball screw is lubricated.But this result cannot thoroughly be cleared up used lubricating grease in self-lubricated process, causes the problem of screw rod partial lubrication deficiency.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of mechanical arm lubricating fitting, can solve the deficiencies in the prior art, has improved the cleaning ability to waste and old grease on self-lubricated basis, improves lubrication effect.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of mechanical arm lubricating fitting, comprise bar axle and the nut of mutual socket, in nut, be provided with external member, in external member, be provided with helical flow path, be provided with pouring orifice and oil outlet in external member, pouring orifice is connected by helical flow path with oil outlet, on the inwall of described helical flow path, be 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, between scraping blade and spiral wall, is provided with sealing film; On spiral wall, be also provided with the groove paralleling with helical flow path, adjacent scraping blade is crisscross arranged in the both sides of groove.
As preferably, described scraping blade comprises bottom, and bottom top is provided with sawtooth layer.
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 cross section of described groove comprises the choke at top and is positioned at the expansion mouth of choke below, and the ratio of the 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 ratio of the interface width of described spiral wall and the width of spiral wall.
The beneficial effect that adopts technique scheme to bring is: the utility model is by arranging scraping blade and groove, at grease in helical flow path in mobile process, by the pressure of grease self, extruding flexible sheet, flexible sheet drives scraping blade protruding by connecting rod, the grease remaining in screw rod is cleared up, and the grease under cleaning enters in groove, has reduced the mixing of new and old grease.Scraping blade is crisscross arranged, and can reduce " 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.
Brief description of the drawings
Fig. 1 is the schematic diagram of an embodiment of the utility model.
Fig. 2 is the schematic diagram that in embodiment of the utility model, scraping blade is connected with flexible sheet.
Fig. 3 is the sectional view of an embodiment further groove of the utility model.
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 using in the utility model all can be bought from the market, special-shaped part all can carry out customized according to specification with record accompanying drawing, the concrete Placement of each part all adopts the conventional meanses such as bolt ripe in prior art, rivet, welding, stickup, 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 mutual socket, in nut 2, be provided with external member 3, in external member 3, be provided with helical flow path 4, in external member 3, be provided with pouring orifice 5 and oil outlet 6, pouring orifice 5 is connected by helical flow path 4 with oil outlet 6, and in the patent documentation that said structure is quoted in background technique, existing fully detailed record, is not described in detail in this.On the inwall of described helical flow path 4, be 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, between scraping blade 9 and spiral wall 10, is provided with sealing film 11; On spiral wall 10, be also provided with the groove 11 paralleling 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, and bottom 12 tops are provided with sawtooth layer 13.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 is positioned at the expansion mouth 15 of choke 14 belows, the minimum diameter of choke 14 is preferably 1:4 with the ratio of the imperial palace warp of expansion mouth 15, can, in the suitable hole of the interior formation of groove 11, be convenient to waste and old grease and enter.Described groove 11 is 11:20 with the ratio of the interface width of described spiral wall 10 and the width of spiral wall 10, can ensure the uniformity that new grease is evenly smeared.The present embodiment is by arranging scraping blade 9 and groove 11, at grease in the interior mobile process of 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, the grease remaining in screw rod is cleared up, and the grease under cleaning enters in groove 11, has reduced the mixing of new and old grease.Scraping blade 9 is crisscross arranged, and can reduce " dead band " of scraping blade 9 scrapings.The sawtooth layer 13 at scraping blade 9 tops 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 described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model 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 mutual socket, in nut (2), be provided with external member (3), in external member (3), be provided with helical flow path (4), in external member (3), be 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: on the inwall of described helical flow path (4), be 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), between scraping blade (9) and spiral wall (10), be provided with sealing film (11), on spiral wall (10), be also provided with the groove (11) paralleling 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 2, 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 be positioned at the expansion mouth (15) of choke (14) below, the ratio of the 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 |
|---|---|---|---|
| CN201420231935.6U CN203822987U (en) | 2014-05-08 | 2014-05-08 | Mechanical arm lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231935.6U CN203822987U (en) | 2014-05-08 | 2014-05-08 | Mechanical arm lubricating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822987U true CN203822987U (en) | 2014-09-10 |
Family
ID=51478495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420231935.6U Expired - Lifetime CN203822987U (en) | 2014-05-08 | 2014-05-08 | Mechanical arm lubricating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090408A (en) * | 2014-05-08 | 2015-11-25 | 宁夏巨能机器人系统有限公司 | Manipulator lubricating device |
-
2014
- 2014-05-08 CN CN201420231935.6U patent/CN203822987U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090408A (en) * | 2014-05-08 | 2015-11-25 | 宁夏巨能机器人系统有限公司 | Manipulator lubricating device |
| CN105090408B (en) * | 2014-05-08 | 2017-11-07 | 宁夏巨能机器人系统有限公司 | A kind of mechanical arm lubricating arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| 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 JUNENG ROBOT Co.,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. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |