CN202349140U - Combination type sealing retainer ring - Google Patents
Combination type sealing retainer ring Download PDFInfo
- Publication number
- CN202349140U CN202349140U CN2011203649059U CN201120364905U CN202349140U CN 202349140 U CN202349140 U CN 202349140U CN 2011203649059 U CN2011203649059 U CN 2011203649059U CN 201120364905 U CN201120364905 U CN 201120364905U CN 202349140 U CN202349140 U CN 202349140U
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- CN
- China
- Prior art keywords
- ring
- retainer ring
- screw pair
- combination type
- ring body
- 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 - Fee Related
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Abstract
A combination type sealing retainer ring applied to a ball screw pair is mainly composed of a retainer ring, an annular body and a spiral spring. The retainer ring and the annular body are integrated in die casting mode, the spiral spring is closely sleeved in an annular groove of the annular body to enable the sealing ring to generate micro elastic deformation to ensure that the inner cavity face of the sealing ring annular body contains the ball screw pair in gapless mode integrally. The outer diameter of the combination type sealing retainer ring has certain interference magnitude. The sealing retainer ring is installed at two ends of a ball nut in disposable mode to locate a returning device and stop dust from entering the screw pair. The combination type sealing retainer ring has the functions of the retainer ring and dustproof performance, is capable of better preventing foreign matters and dust from entering a roll way, effectively gets rid of sundries and clean the screw pair, and can automatically compensate gaps generated by processing and abrasion of the dustproof ring brought by long-term working of the screw pair. The combination type sealing retainer ring greatly prolongs service life of the ball screw pair and reduces maintenance cost.
Description
Affiliated technical field
The utility model relates to the secondary a kind of Sealing shield ring of two back recirculating ball spindles, especially requires to have the Sealing shield ring of back-up ring and dustproof dual functions.
Background technique
At present, a kind of pair of back ball-recirculation lead screw pair, its feed screw nut two ends will be installed back-up ring and seal ring simultaneously, get into lead screw pair with location back device and prevention dust, guarantee effective work of ball screw pair.Existing seal ring is general a kind of nylon material, and dustproof face is processed the ring body identical with the threads of lead screw raceway, processes with turning or die casting.For guaranteeing the precision of product; Just leave the gap between ball nut inner cavity surface and the ball screw; Therefore seal ring can only prevent that bigger foreign material from getting into raceway, and some dusts and tiny foreign material have been accelerated the wearing and tearing of ball screw pair raceway along with the raceway that is moved into of ball screw pair; Shorten product working life, increased the maintenance cost.
Summary of the invention
In order to overcome the deficiency of existing two back ball-recirculation lead screw pair, the utility model provides a kind of combined labyrinth and carbon gland back-up ring, and the existing back-up ring effect of this combined labyrinth and carbon gland back-up ring has dustproof preferably effect again.The utility model solves the technological scheme that its technical problem adopted: the combined labyrinth and carbon gland back-up ring is made up of back-up ring, ring body and helical spring, and ring body is cast into an integral body, and helical spring tightly overlaps in the ring body circular groove.Back-up ring is the steel cirque body of processing through turning, and the circle middle part is shaped on the annular groove of radius 2mm outside cirque body, and flexuose is processed in side of cirque body; Ring body is by resinous material compression moulding, outside ring body, is shaped on 1.5 millimeters of radiuses on the circle, 2 dark 1.5 millimeters circular grooves; The ring body inner cavity surface is processed and the identical hemisphere raceway of ball screw screw thread raceway shape, and have vertical with the raceway symmetry plane, the section center line become 30 the degree; Wide 1.5 millimeters; Dark 5 millimeters 6-10 bar decontamination pit, decontamination pit one end passes to the dust-proof seal ring end face, and the other end passes to ring body roller surface center line.Helical spring is processed ring, and tight cuff makes seal ring produce the resiliently deformable of trace in the ring body circular groove, does not have the whole ball screw that contains in gap to guarantee seal ring ring body inner cavity surface.Combined labyrinth and carbon gland back-up ring external diameter is got certain magnitude of interference.
The beneficial effect of the utility model number is: the disposable ball nut two ends that are installed in of combined labyrinth and carbon gland back-up ring, have back-up ring and dust reduction capability simultaneously concurrently, and can prevent preferably that foreign matter and dust from getting into raceway, get rid of foreign material effectively, the cleaning leading screw.Can compensate automatically because of the gap of processing generation and the wearing and tearing of lead screw pair dust ring that long-term work causes, guarantee better seal.Therefore greatly prolong the working life of ball screw pair, reduced the maintenance cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
This figure is the structural drawing of the utility model
Among the figure, 1. back-up ring, 2. helical spring, 3, ring body.
Embodiment
In the drawings, back-up ring on request the processing excircles body and on groove, endoporus, side sawtooth.According to external diameter, the annular groove of ring body, inner chamber dignity and decontamination pit are opened one pair of combined mould of system together with back-up ring, and back-up ring is put into earlier wherein, the disposable combined labyrinth and carbon gland back-up ring that is pressed into.Two groups of tight cuffs of helical spring make ring body that micro-resiliently deformable arranged in the ring body circular groove.Combined labyrinth and carbon gland back-up ring integral body press-fits in the feed screw nut two ends, tightens the Cock screw on the feed screw nut, screws in ball screw, accomplishes the combined labyrinth and carbon gland back-up ring and installs.
Claims (4)
1. a combined labyrinth and carbon gland back-up ring is made up of back-up ring, ring body and helical spring, it is characterized in that back-up ring, ring body are cast into an integral body, and helical spring tightly overlaps in the ring body circular groove.
2. combined labyrinth and carbon gland back-up ring according to claim 1 is characterized in that: the steel cirque body that back-up ring is processed through turning, and the circle middle part is shaped on the annular groove of radius 2mm outside cirque body, and flexuose is processed in side of cirque body.
3. combined labyrinth and carbon gland back-up ring according to claim 1 is characterized in that: ring body is shaped on 1.5 millimeters of radiuses by resinous material compression moulding on the circle outside ring body; 2 dark 1.5 millimeters circular grooves; The ring body inner cavity surface is processed and the identical hemisphere raceway of ball screw screw thread raceway shape, and have vertical with the raceway symmetry plane, the section center line become 30 the degree; Wide 1.5 millimeters; Dark 5 millimeters 6-10 bar decontamination pit, decontamination pit one end passes to the dust-proof seal ring end face, and the other end passes to ring body roller surface center line.
4. according to the said combined labyrinth and carbon gland back-up ring of claim 1, it is characterized in that: helical spring is processed ring, tightly overlaps in the ring body circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203649059U CN202349140U (en) | 2011-09-16 | 2011-09-16 | Combination type sealing retainer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203649059U CN202349140U (en) | 2011-09-16 | 2011-09-16 | Combination type sealing retainer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349140U true CN202349140U (en) | 2012-07-25 |
Family
ID=46538147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203649059U Expired - Fee Related CN202349140U (en) | 2011-09-16 | 2011-09-16 | Combination type sealing retainer ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899473A (en) * | 2019-03-14 | 2019-06-18 | 赵洁 | Ball screw assembly, and sealing structure |
-
2011
- 2011-09-16 CN CN2011203649059U patent/CN202349140U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899473A (en) * | 2019-03-14 | 2019-06-18 | 赵洁 | Ball screw assembly, and sealing structure |
| CN109899473B (en) * | 2019-03-14 | 2022-06-03 | 赵洁 | Ball screw pair and sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20170916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |