CN220727028U - Planetary roller screw convenient to maintain - Google Patents
Planetary roller screw convenient to maintain Download PDFInfo
- Publication number
- CN220727028U CN220727028U CN202322290934.0U CN202322290934U CN220727028U CN 220727028 U CN220727028 U CN 220727028U CN 202322290934 U CN202322290934 U CN 202322290934U CN 220727028 U CN220727028 U CN 220727028U
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- half shaft
- screw
- planetary roller
- clamping
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- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 15
- 239000010687 lubricating oil Substances 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a planetary roller screw rod convenient to maintain, which comprises a screw rod, wherein the periphery of the screw rod is provided with a shaft sleeve, the shaft sleeve consists of two half shaft sleeves, the cambered surface of the half shaft sleeve is provided with at least one group of oil holes, and the oil holes are arranged along the axial direction of the half shaft sleeve; the oil holes are convenient for adding lubricating oil in real time, and the two axle sleeves are detachable and convenient for cleaning and maintenance in later period; clamping grooves are uniformly arranged on one side of the vertical surface of the half shaft sleeve along the axial direction, and clamping keys are uniformly arranged on the other side of the vertical surface of the half shaft sleeve along the axial direction; the clamping key is connected with the clamping groove of the other half axle sleeve in a filtering fit manner.
Description
Technical Field
The utility model relates to the technical field of transmission equipment, in particular to a planetary roller screw rod convenient to maintain.
Background
The utility model and design of planetary roller screw mainly transfers the load on the nut to the shaft through the roller between the nut and the screw shaft so as to reliably operate.
When the existing planetary roller screw rod is cleaned and maintained, all the planetary roller screw rod needs to be disassembled, which is time-consuming and labor-consuming; and when lubrication maintenance is carried out at ordinary times, the roller is lubricated by lubricating the screw rod. Such roller lubrication is not comprehensive, and there is a large wear between the rollers and the lead screw.
Disclosure of Invention
The utility model aims to provide a planetary roller screw which is convenient to maintain and aims to solve the problems in the background technology.
In order to solve the technical problems, the utility model provides the following technical scheme: the planetary roller screw rod convenient to maintain comprises a screw rod, wherein a shaft sleeve is arranged on the periphery of the screw rod, the shaft sleeve consists of two half shaft sleeves, at least one group of oil holes are formed in the cambered surface of the half shaft sleeve, and the oil holes are arranged along the axial direction of the half shaft sleeves; the oil holes are convenient for adding lubricating oil in real time, and the two axle sleeves are detachable and convenient for cleaning and maintenance in later period;
clamping grooves are uniformly arranged on one side of the vertical surface of the half shaft sleeve along the axial direction, and clamping keys are uniformly arranged on the other side of the vertical surface of the half shaft sleeve along the axial direction; the clamping key is connected with the clamping groove of the other half axle sleeve in a filtering fit manner.
According to the technical scheme, the screw thread platform is fixedly arranged on the inner wall of the half shaft sleeve, two arc-shaped grooves are formed in the inner wall of the half shaft sleeve, the two arc-shaped grooves are located at two ends of the screw thread platform, and the oil holes are respectively located between the screw thread platform and the arc-shaped grooves.
According to the technical scheme, the periphery of the screw rod is rotationally provided with a plurality of rollers along the circumferential direction, and each roller can be screwed with the cavity arm of the threaded platform.
According to the technical scheme, the peripheries of the two ends of the roller are meshed with the inner gear ring, and the periphery of the inner gear ring is in sliding connection with the half axle sleeve; an end cover is fixedly arranged at the outer end of the inner gear ring, and the outer side of the end cover is connected with the arc-shaped groove in a clearance fit manner; the end face of the end cover is connected with the roller through a bearing.
According to the technical scheme, the through hole is formed in the outer peripheral wall of the inner gear ring, and the end face where the through hole is formed and the end face where the oil hole is formed are the same end face.
According to the technical scheme, dynamic sealing is adopted between the end cover and the arc-shaped groove, and sealing plates are adopted between the two half axle sleeves for sealing.
Compared with the prior art, the utility model has the following beneficial effects:
through the oil holes and the through holes, when lubricating oil is added at ordinary times, the lubricating oil is added to the front oil hole along the travelling direction of the planetary roller screw, and along with the travelling of the planetary roller screw, the lubricating oil enters the corresponding through holes after entering the inside of the half shaft sleeve, lubricates rollers of the planetary roller screw, and flows out of the corresponding oil holes after passing through the rear through holes along the travelling direction of the planetary roller screw;
through being provided with the semi-axis cover, adopt detachable semi-axis cover, when need carrying out clean maintenance, separate two semi-axis covers to two directions, make the joint key break away from the joint groove, later through carrying out lubricating oil cleaning to the middle section of roller, wash the sweeps on roller and the lead screw and take away.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a perspective view of the overall structure of the present utility model;
FIG. 2 is a schematic perspective view of the axle housing structure of the present utility model;
FIG. 3 is a perspective view of the overall internal structure of the present utility model;
in the figure: 1. a screw rod; 2. a shaft sleeve; 21. a half shaft sleeve; 22. an oil hole; 23. a clamping groove; 24. a clamping key; 25. an arc-shaped groove; 26. a threaded platform; 31. an end cap; 32. an inner gear ring; 321. a through hole; 4. and (3) a roller.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides the following technical solutions: the utility model provides a planetary roller screw convenient to maintain, includes lead screw 1, and lead screw 1's periphery is provided with axle sleeve 2, and axle sleeve 2 comprises two half axle sleeves 21 relative installation, and half axle sleeve 21's cambered surface has seted up at least one set of oilhole 22, and oilhole 22 is arranged along the axial direction of half axle sleeve 21; wherein the inner structure of the shaft sleeve 2 is as follows:
as shown in fig. 2, clamping grooves 23 are uniformly arranged on one side of the vertical surface of the half shaft sleeve 21 along the axial direction, and clamping keys 24 are uniformly arranged on the other side of the vertical surface of the half shaft sleeve 21 along the axial direction; the clamping key 24 is connected with the clamping groove 23 of the other half shaft sleeve 21 through filtration fit. The inner wall of half axle sleeve 21 is fixed mounting has screw thread platform 26, and two arc grooves 25 have been seted up to the inner wall of half axle sleeve 21, and two arc grooves 25 are located screw thread platform 26 both ends, and oilhole 22 is located between screw thread platform 26 and arc groove 25 respectively.
As shown in fig. 2 and 3, the outer periphery of the screw 1 is provided with a plurality of rollers 4 rotatably in the circumferential direction, and each roller 4 is screwed with the cavity arm of the screw table 26. The outer circumferences of the two ends of the roller 4 are meshed with an inner gear ring 32, and the outer circumferential wall of the inner gear ring 32 is in sliding connection with the half shaft sleeve 21; an end cover 31 is fixedly arranged at the outer end of the inner gear ring 32, and the outer side of the end cover 31 is connected with the arc-shaped groove 25 through clearance fit; the end face of the end cap 31 is connected to the roller 4 by a bearing. The outer peripheral wall of the ring gear 32 starts to have a through hole 321, and the end surface where the through hole 321 is located and the end surface where the oil hole 22 is located are the same end surface.
In addition, a dynamic seal is adopted between the end cover 31 and the arc-shaped groove 25, and a sealing plate is adopted between the two half shaft sleeves 21.
In summary, when lubricating oil is added at ordinary times, lubricating oil is added to the front end oil hole 22 along the travelling direction of the planetary roller screw, and as the planetary roller screw travels, the lubricating oil enters the inside of the half shaft sleeve 21 and then enters the corresponding through hole 321, lubricates the roller 4 thereof, and flows out from the corresponding oil hole 22 after passing through the rear end through hole 321 along the travelling direction of the planetary roller screw;
when cleaning maintenance is needed, the two half shaft sleeves 21 are separated in two directions, the clamping key 24 is separated from the clamping groove 23, and then the middle section of the roller 4 is cleaned by lubricating oil, so that the roller 4 and scraps on the screw rod 1 are cleaned and taken away.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. Planetary roller screw convenient to maintain, including lead screw (1), its characterized in that: the periphery of the screw rod (1) is provided with a shaft sleeve (2), the shaft sleeve (2) consists of two half shaft sleeves (21), at least one group of oil holes (22) are formed in the cambered surface of the half shaft sleeve (21), and the oil holes (22) are arranged along the axial direction of the half shaft sleeve (21);
clamping grooves (23) are uniformly formed in one side of the vertical surface of the half shaft sleeve (21) along the axial direction, and clamping keys (24) are uniformly formed in the other side of the vertical surface of the half shaft sleeve (21) along the axial direction; the clamping key (24) is connected with a clamping groove (23) of the other half axle sleeve (21) in a filtering and matching way.
2. A maintenance-friendly planetary roller screw as claimed in claim 1, wherein: the inner wall fixed mounting of semi-axis cover (21) has screw thread platform (26), two arc grooves (25) have been seted up to the inner wall of semi-axis cover (21), two arc grooves (25) are located screw thread platform (26) both ends, oilhole (22) are located between screw thread platform (26) and arc groove (25) respectively.
3. A maintenance-friendly planetary roller screw as claimed in claim 2, wherein: the periphery of the screw rod (1) is rotatably provided with a plurality of rollers (4) along the circumferential direction, and each roller (4) can be screwed with a cavity arm of the threaded platform (26).
4. A maintenance-friendly planetary roller screw as claimed in claim 3, wherein: the peripheries of the two ends of the roller (4) are meshed with inner gear rings (32), and the peripheral wall of each inner gear ring (32) is in sliding connection with the half shaft sleeve (21); an end cover (31) is fixedly arranged at the outer end of the inner gear ring (32), and the outer side of the end cover (31) is connected with the arc-shaped groove (25) through clearance fit; the end face of the end cover (31) is connected with the roller (4) through a bearing.
5. The maintenance-friendly planetary roller screw as claimed in claim 4, wherein: the outer peripheral wall of the inner gear ring (32) is provided with a through hole (321), and the end face of the through hole (321) and the end face of the oil hole (22) are the same.
6. The maintenance-friendly planetary roller screw as claimed in claim 5, wherein: dynamic sealing is adopted between the end cover (31) and the arc-shaped groove (25), and sealing plates are adopted between the two half shaft sleeves (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322290934.0U CN220727028U (en) | 2023-08-25 | 2023-08-25 | Planetary roller screw convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322290934.0U CN220727028U (en) | 2023-08-25 | 2023-08-25 | Planetary roller screw convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220727028U true CN220727028U (en) | 2024-04-05 |
Family
ID=90503167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322290934.0U Active CN220727028U (en) | 2023-08-25 | 2023-08-25 | Planetary roller screw convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220727028U (en) |
-
2023
- 2023-08-25 CN CN202322290934.0U patent/CN220727028U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |