CN203756942U - High-sealing screw rod lift - Google Patents
High-sealing screw rod lift Download PDFInfo
- Publication number
- CN203756942U CN203756942U CN201420154447.XU CN201420154447U CN203756942U CN 203756942 U CN203756942 U CN 203756942U CN 201420154447 U CN201420154447 U CN 201420154447U CN 203756942 U CN203756942 U CN 203756942U
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- CN
- China
- Prior art keywords
- sealing
- screw rod
- seal ring
- large end
- box body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of screw rod lifts and aims to provide a high-sealing screw rod lift. According to the technical scheme, the high-sealing screw rod lift comprises a box body, a worm and gear assembly, a lifting screw rod, an oil seal and a large end cover, wherein the worm and gear assembly and the lifting screw rod are installed in the box body through bearings, the oil seal is arranged at the bottom of the box body, the large end cover is fixed on the top surface of the box body through bolts, and a sealing structure is disposed between the large end cover and the top surface of the box body. The high-sealing screw rod lift is characterized in that the sealing structure comprises at least one seal ring installing groove, a seal ring and at least one oil collecting groove, the at least one seal ring installing groove is formed in the top surface of the box body, the seal ring is arranged in the seal ring installing groove, the at least one oil collecting groove is formed in the top surface of the box body, and at least one sealing rib which is matched with the oil collecting groove is designed on the bottom surface of the large end cover. The oil collecting groove is arranged by surrounding the axis of the screw rod, the oil collecting groove is in a non-sealed arc shape or a sealed annular shape, and the cross section of the oil collecting groove is in a circular arc shape or a V shape or a rectangle shape. The high-sealing screw rod lift has the advantages of good sealing and simple structure.
Description
Technical field
The utility model relates to screw lift technical field, especially a kind of high leak tightness screw lift.
Background technique
Screw lift has compact structure, little, the lightweight advantage of volume, is widely used in the industry-by-industries such as machinery, metallurgy, building, chemical industry, medical treatment, cultural health.Screw lift is made up of worm reduction gear and elevating screw, and its deceleration component is Worm and Worm Gear Driving, slows down thereby utilize worm screw to drive worm gear to realize; And the center of worm gear is exactly the structure of internal thread, can mate with elevating screw, drive elevating screw to carry out elevating movement.Because reasons in structure, this screw lift all uses lubricating grease/lubricant oil to be lubricated conventionally, for avoiding lubricating grease/lubricant oil to spill, elevating screw outlet port at bottom half seals by oil sealing, and large end cap is installed in the elevating screw outlet port at casing top, the sealability of this large end cap is poor, sometimes has a small amount of lubricating grease/lubricant oil and spills, and waits to improve.
Model utility content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, and a kind of high leak tightness screw lift is provided, and this screw lift should have good airproof performance, feature simple in structure.
For realizing above object, the utility model has adopted following technological scheme:
A kind of high leak tightness screw lift, comprise casing, be arranged on worm and gear assembly and the elevating screw in casing by bearing, be arranged on the oil sealing of bottom half and be bolted on the large end cap of box top, between large end cap and box top, be provided with sealing configuration, it is characterized in that: described sealing configuration comprises at least one the seal ring mounting groove that is opened in box top, be arranged on the seal ring in seal ring mounting groove and be opened at least one oil trap of box top, the bottom surface of large end cap is shaped with the sealing fin that at least one coordinates with described oil trap.
Described oil trap is around the axis arranged of screw mandrel, the arc that oil trap is open-ended or be the ring-type of sealing.
The cross section of described oil trap is circular arc or V-arrangement or rectangle.
Described seal ring and oil trap are all positioned at the inner side of the bolt hole of large end cap.
The beneficial effects of the utility model are: the utility model is provided with seal ring and oil trap at the end face of casing, simple and practical, oil trap is wherein in playing preliminary seal action, can also hold in a certain amount of lubricant oil/lubricating grease, flow to seal ring lubricant oil/lubricating grease thereby reduce, realize good seal action.
Brief description of the drawings
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the enlarged diagram of A portion in Fig. 1.
Fig. 3 is the bottom surface enlarged diagram of large end cap.
Fig. 4 is the enlarged diagram of box top.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 1, a kind of high leak tightness screw lift described in the utility model, comprise casing 2, be arranged on worm gear 4, worm screw 1 and elevating screw 6 in casing, be arranged on the oil sealing of bottom half and be bolted on the large end cap 5 of box top by bearing 3, bottom surface and the box top close contact of large end cap, play the effect of sealing.Said structure and existing screw lift are similar, do not describe in detail at this.
In the utility model large end cap and the sealing configuration of box top comprise be opened in box top at least one seal ring mounting groove 2-2 (degree of depth is determined as required), be arranged on the seal ring 7 in seal ring mounting groove and be opened at least one oil trap 2-1 of box top, the bottom surface of end cap is shaped with the sealing fin 5-1 that at least one coordinates with described oil trap greatly.
Described oil trap is around the axis arranged of screw mandrel, the arc that oil trap is open-ended or be the ring-type of sealing, and shape and the oil trap of sealing fin adapt.Described oil trap is towards upper shed, and its cross section is circular arc or V-arrangement or rectangle, and sealing fin protrudes downwards, extend into and in oil trap, plays seal action; And sealing sealing fin.For realizing seal action, described seal ring and oil trap are generally all positioned at the inner side of the bolt hole of large end cap.
Claims (4)
1. a high leak tightness screw lift, comprise casing (2), be arranged on the worm and gear assembly (1 in casing by bearing (3), 4) and elevating screw (6), be arranged on the oil sealing of bottom half and be bolted on the large end cap (5) of box top, between large end cap and box top, be provided with sealing configuration, it is characterized in that: described sealing configuration comprises at least one the seal ring mounting groove (2-2) that is opened in box top, be arranged on the seal ring (7) in seal ring mounting groove and be opened at least one oil trap (2-1) of box top, the bottom surface of large end cap is shaped with the sealing fin (5-1) that at least one coordinates with described oil trap.
2. a kind of high leak tightness screw lift according to claim 1, is characterized in that: described oil trap is around the axis arranged of screw mandrel, the arc that oil trap is open-ended or be the ring-type of sealing.
3. a kind of high leak tightness screw lift according to claim 1 and 2, is characterized in that: the cross section of described oil trap is circular arc or V-arrangement or rectangle.
4. a kind of high leak tightness screw lift according to claim 3, is characterized in that: described seal ring and oil trap are all positioned at the inner side of the bolt hole of large end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154447.XU CN203756942U (en) | 2014-03-28 | 2014-03-28 | High-sealing screw rod lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154447.XU CN203756942U (en) | 2014-03-28 | 2014-03-28 | High-sealing screw rod lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756942U true CN203756942U (en) | 2014-08-06 |
Family
ID=51252221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420154447.XU Expired - Fee Related CN203756942U (en) | 2014-03-28 | 2014-03-28 | High-sealing screw rod lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982272A (en) * | 2018-07-31 | 2018-12-11 | 农业部南京农业机械化研究所 | A kind of peanut picking collision friction wear tester |
| WO2019137496A1 (en) * | 2018-01-12 | 2019-07-18 | 上海微电子装备（集团）股份有限公司 | Lifting mechanism, lifting platform device, lithography machine and lithography method |
-
2014
- 2014-03-28 CN CN201420154447.XU patent/CN203756942U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137496A1 (en) * | 2018-01-12 | 2019-07-18 | 上海微电子装备（集团）股份有限公司 | Lifting mechanism, lifting platform device, lithography machine and lithography method |
| CN108982272A (en) * | 2018-07-31 | 2018-12-11 | 农业部南京农业机械化研究所 | A kind of peanut picking collision friction wear tester |
| CN108982272B (en) * | 2018-07-31 | 2021-08-13 | 农业部南京农业机械化研究所 | Peanut picking collision friction wear testing machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20170328 |