CN204752083U - Lead screw elevating system - Google Patents
Lead screw elevating system Download PDFInfo
- Publication number
- CN204752083U CN204752083U CN201520350738.0U CN201520350738U CN204752083U CN 204752083 U CN204752083 U CN 204752083U CN 201520350738 U CN201520350738 U CN 201520350738U CN 204752083 U CN204752083 U CN 204752083U
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- CN
- China
- Prior art keywords
- screw
- leading screw
- base plate
- threaded shaft
- elevator structure
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Abstract
The utility model provides a lead screw elevating system, includes: lead screw lift, the hookup that is located above the lift nut are overlapped and are passed the adapter sleeve and divide two guide bars that are listed as the lead screw both sides, wherein: two guide bar both ends and lead screw top are passed through the bearing frame and are fixed on the frame, and the hookup cover is for the fusiformis and fix on the frame, the utility model discloses a manufacture error is eliminated to the guide bar to transfer hookup cover and goods surface to surface contact, the radial force dispersion that produces the goods in the transportation, protects the lead screw.
Description
Technical field
The utility model relates to the technology of mechanical manufacturing field, specifically a kind of screw-threaded shaft elevator structure.
Background technology
Along with the fast development of over-the-road transportation Vehicle Industry, some high precision, large-tonnage goods transport are also gradually at past over-the-road transportation future development.In actual handling process, be certainly elevated demand, vehicle-mounted lifting system of having arisen at the historic moment for this kind of goods, comprise hydraulic lifting system and mechanical leading screw jacking system.
In large parts transport during application machine leading screw jacking system, need multi-point support, often cause the parallelism between several strong point and distance to have error owing to manufacturing error (parallelism, squareness etc.), can cause damage to leading screw in lifting process; Due to the many restriction of large parts transport to vehicle dimension, goods can not directly be connected with elevator nut, reduces the reliability of leading screw.
Through finding the retrieval of prior art, Chinese patent literature CN103411823A, date of publication 2013.11.27, disclose a kind of leading screw guide piece, comprise entablatrance and leading screw, described leading screw comprises threads of lead screw part and fix shaft part, described entablatrance is provided with a guide-localization hole coordinated with fix shaft part, fix shaft part is arranged in guide-localization hole, the inner upper end in described guide-localization hole arranges a bearing hole, in described bearing hole, self-lubricating bearing is installed, the upper end of self-lubricating bearing is provided with a roller bearing end cap, described roller bearing end cap is fixedly connected with entablatrance by screw.But this technology leading screw adjustable height limit by fix shaft part, and cannot eliminate manufacturing errors in lifting process, makes leading screw be subject to pullling power.
Utility model content
The utility model is for prior art above shortcomings; a kind of screw-threaded shaft elevator structure is proposed; radial force is absorbed by the pilot bar of leading screw both sides; coupling mechanism between leading screw and pilot bar makes goods self-control vibration surplus in lifting process; eliminate manufacturing errors, protect leading screw better.
The utility model is achieved through the following technical solutions:
The utility model comprises: leading screw, with the lifting nut that leading screw matches, be horizontally placed on coupling sleeve above the lifting nut pilot bar identical with two that are symmetricly set in leading screw both sides, wherein: two ends and the leading screw two ends of coupling sleeve, two pilot bars are fixed respectively, and two pilot bars are each passed through with leading screw the coupling sleeve be connected with lifting nut.
Be free-running fit between described coupling sleeve and two pilot bars.
Described coupling sleeve comprises: base plate, support sleeve and top board, wherein: top board and base plate central authorities are provided with the lift span of the same inner diameter matched with leading screw, and base plate two ends are coaxially provided with the pilot hole of the same inner diameter matched with two pilot bars; Support sleeve two ends are fixedly connected with base plate with top board respectively.
Technique effect
Compared with prior art, the utility model is by transfer coupling sleeve and cargo contacts, and can solve some large cargos cannot problem direct coupled with lifting nut, makes connection convenient; The simultaneously connecting mode of plane-plane contact between coupling sleeve and goods; goods is made to have certain vibration surplus; manufacturing errors can be eliminated, and the diametral load of goods effect is delivered on pilot bar by the free-running fit of coupling sleeve and pilot bar, thus the radial direction that protection leading screw does not bring by goods pulls power.
Accompanying drawing explanation
Fig. 1 is the utility model scheme of installation;
Fig. 2 is the utility model structural representation;
Fig. 3 is the first coupling sleeve schematic diagram;
Fig. 4 is the second coupling sleeve schematic diagram;
Fig. 5 is the second coupling sleeve section-drawing;
In figure: 1 is leading screw, 2 is lifting nut, and 3 is coupling sleeve, and 4 is pilot bar, and 5 is bearing seat, 6 is driver train, and 7,13 is top board, and 8,15 is support sleeve, and 9,14 is base plate, 10,16 is copper sheathing, and 11,19 is pilot hole, and 12 is vehicle frame, and 17,18 is globe thrust bearing.
Detailed description of the invention
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under premised on technical solutions of the utility model; give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment comprises: leading screw 1, with the lifting nut 2 that leading screw 1 matches, be horizontally placed on coupling sleeve 3 above lifting nut 2 pilot bar 4 identical with two that are symmetricly set in leading screw 1 both sides, wherein: the two ends of coupling sleeve 3, two pilot bars 4 are fixedly connected with vehicle frame 12 respectively by bearing seat 5 with one end of leading screw 1, the other end of leading screw 1 is fixedly connected with driver train 6, and two pilot bars 4 and leading screw 1 are each passed through the bolted coupling sleeve 3 with lifting nut 2.
Be free-running fit between described coupling sleeve 3 and two pilot bars 4.
As shown in Figure 3, described coupling sleeve 3 comprises: base plate 9, support sleeve 8 and top board 7, wherein: top board 7 and base plate 9 central authorities are provided with the lift span of the same inner diameter matched with leading screw 1, and base plate 9 two ends are coaxially provided with the pilot hole 11 of the same inner diameter matched with two pilot bars 4; Support sleeve 8 two ends are fixedly connected with base plate 9 with top board 7 respectively.
Described support sleeve 8 internal diameter is greater than the external diameter of described leading screw 1.
As shown in Figure 3, described base plate 9 is fusiformis, and base plate 9 is provided with bolt hole, for being bolted with the lifting nut 2 of leading screw.
Described pilot hole 11 and copper sheathing 10 interference fit.
The end margin that described support sleeve 8 is connected with base plate 9 is profile of tooth, and because coupling sleeve 3 and lifting nut 2 are bolted, this profile of tooth can be avoided bolt and improve space availability ratio.
Embodiment 2
As shown in Figure 4 and Figure 5, described coupling sleeve 3 comprises: base plate 14, support sleeve 15 and top board 13, wherein: top board 13 and base plate 14 central authorities are provided with the lift span of the same inner diameter matched with leading screw 1, and base plate 14 two ends are coaxially provided with the pilot hole 19 of the same inner diameter matched with two pilot bars 4; Support sleeve 15 two ends are fixedly connected with base plate 14 with top board 13 respectively.
Described support sleeve 15 internal diameter is greater than the external diameter of described leading screw 1.
Described base plate 14 is fusiformis.
Described pilot hole 19 and copper sheathing 10 interference fit.
The end margin that described support sleeve 15 is connected with base plate 14 is profile of tooth.
Described support sleeve 15 is connected by globe thrust bearing with top board 13.
The lower surface interference fit of sphere 17 and top board 13 on described globe thrust bearing, interference fit inside globe thrust bearing lower peripheral surface 18 and support sleeve 15.
Described top board 7 and 13 in lifting process with goods plane-plane contact, leave and take certain vibration surplus, eliminate the position dimension deviation of the different strong points that manufacturing process and vehicle self-deformation cause, to protect leading screw 1.
The fixing leading screw 1 in described top makes lifting nut 2 can not spinning thus realize moving axially, and makes goods be distributed on two pilot bars 4 to the radial forces that leading screw 1 produces in lifting process, to reach the object of protection leading screw 1.
The pilot bar that described Symmetrical vertical is fixedly installed reduces the infringement because distance and the error of perpendicularity cause leading screw 1 in many elevator systems.
Claims (8)
1. a screw-threaded shaft elevator structure, it is characterized in that, comprise: leading screw, with the lifting nut that leading screw matches, be horizontally placed on coupling sleeve above the lifting nut pilot bar identical with two that are symmetricly set in leading screw both sides, wherein: two ends and the leading screw two ends of coupling sleeve, two pilot bars are fixed respectively, and two pilot bars are each passed through with leading screw the coupling sleeve be connected with lifting nut.
2. screw-threaded shaft elevator structure according to claim 1, is characterized in that, is free-running fit between described coupling sleeve and two pilot bars.
3. screw-threaded shaft elevator structure according to claim 1 and 2, it is characterized in that, described coupling sleeve comprises: base plate, support sleeve and top board, wherein: top board and base plate central authorities are provided with the lift span of the same inner diameter matched with described leading screw, base plate two ends are coaxially provided with the pilot hole with described two same inner diameter that pilot bar matches, and support sleeve two ends are fixedly connected with base plate with top board respectively.
4. screw-threaded shaft elevator structure according to claim 3, is characterized in that, described pilot hole and copper sheathing interference fit.
5. screw-threaded shaft elevator structure according to claim 4, is characterized in that, the end margin that described support sleeve is connected with described base plate is profile of tooth.
6. screw-threaded shaft elevator structure according to claim 5, is characterized in that, described support sleeve is fixedly connected with by globe thrust bearing with top board.
7. the screw-threaded shaft elevator structure according to claim 5 or 6, is characterized in that, described base plate is fusiformis.
8. screw-threaded shaft elevator structure according to claim 3, is characterized in that, described base plate is provided with bolt hole, for being bolted with the lifting nut of leading screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350738.0U CN204752083U (en) | 2015-05-27 | 2015-05-27 | Lead screw elevating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350738.0U CN204752083U (en) | 2015-05-27 | 2015-05-27 | Lead screw elevating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204752083U true CN204752083U (en) | 2015-11-11 |
Family
ID=54466812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520350738.0U Expired - Fee Related CN204752083U (en) | 2015-05-27 | 2015-05-27 | Lead screw elevating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204752083U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763605A (en) * | 2016-12-31 | 2017-05-31 | 常州机电职业技术学院 | A kind of captive nut mechanism |
| CN107327552A (en) * | 2017-08-02 | 2017-11-07 | 南京理工大学 | A kind of vertical Feed System With Ball Screw of big stroke |
| CN108640003A (en) * | 2018-07-25 | 2018-10-12 | 宁夏国励汽车动力科技有限公司 | Screw rod lifting top rod |
-
2015
- 2015-05-27 CN CN201520350738.0U patent/CN204752083U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763605A (en) * | 2016-12-31 | 2017-05-31 | 常州机电职业技术学院 | A kind of captive nut mechanism |
| CN106763605B (en) * | 2016-12-31 | 2018-01-30 | 常州机电职业技术学院 | A kind of captive nut mechanism |
| CN107327552A (en) * | 2017-08-02 | 2017-11-07 | 南京理工大学 | A kind of vertical Feed System With Ball Screw of big stroke |
| CN107327552B (en) * | 2017-08-02 | 2024-04-05 | 南京理工大学 | Large-stroke vertical screw feed system |
| CN108640003A (en) * | 2018-07-25 | 2018-10-12 | 宁夏国励汽车动力科技有限公司 | Screw rod lifting top rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160520 Address after: 201906 Baoshan District, Gu village, an industrial park, No. 1 Fu Road, No. 758, Shanghai Patentee after: Special/Aviation Vehicles Co., Ltd., Shanghai Address before: 200092, room 32, 1106-9 Tieling Road, Shanghai, Yangpu District Patentee before: AVIC (Shanghai) Automotive Technology Co., Ltd. |
|
| 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: 20151111 Termination date: 20210527 |