CN104930149A - Lead screw mounting structure and mounting method thereof - Google Patents
Lead screw mounting structure and mounting method thereof Download PDFInfo
- Publication number
- CN104930149A CN104930149A CN201510334618.6A CN201510334618A CN104930149A CN 104930149 A CN104930149 A CN 104930149A CN 201510334618 A CN201510334618 A CN 201510334618A CN 104930149 A CN104930149 A CN 104930149A
- Authority
- CN
- China
- Prior art keywords
- leading screw
- bearing
- clasp
- lead screw
- screw
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H2025/2436—Intermediate screw supports for reducing unsupported length of screw shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a lead screw mounting structure and a mounting method thereof. The lead screw mounting structure comprises a lead screw and a bearing. The upper portion of the lead screw is inserted into and fixed to the center of the bearing, a load is arranged on the lower portion of the lead screw, the external diameter of the part, inserted into the center of the bearing, of the upper portion of the lead screw is smaller than the external diameter of the lower portion of the lead screw, and one or more stepped grooves are formed in the part, inserted into the center of the bearing, of the upper portion of the lead screw. The lead screw mounting structure further comprises a split type lead screw shoulder ring and a bearing fixing part, the split type lead screw shoulder ring is arranged on the upper portion, inserted into the center of the bearing, of the lead screw in a sleeving mode, and the bearing fixing part is mounted outside the split type lead screw shoulder ring. According to the lead screw mounting structure and the mounting method thereof, a lead screw retaining ring is divided into two half symmetrical parts, a plurality of stepped grooves can be selected according to the size of the load, the reliability is greatly improved compared with the mode that the lead screw is fixed through a nut, the lead screw shoulder ring is in a split type design, the external diameters of materials needed by lead screws of the same specification are small, the lead screw can be machined conveniently, materials are saved, and using is more flexible.
Description
Technical field
The present invention relates generally to a kind of leading screw mounting structure and installation method thereof.
Background technique
Lead screw transmission is that rotation motion is converted into straight line motion, or is the desirable product of rotation motion by transform linear motion.At present, in order to alleviate the complexity of screw mandrel processing, reduce the external diameter of screw mandrel material, save material, normally fixedly by machining screw on screw mandrel at screw mandrel and bearing, with two nuts, screw mandrel is fastened on bearing, it is unreliable that this structure also exists in use, poor stability and load little, screw mandrel is when high speed rotating, during long-time use, nut also exists the phenomenon of coming up, nut can rotate, once there is above-mentioned situation, screw mandrel can fall down under the drive of load, and accelerate the wearing and tearing of screw thread, cause and finally directly come off, cause serious accident, lose very large.Said structure is more obvious in the situation that load is larger.
Summary of the invention
For the problems referred to above, the invention provides a kind of leading screw mounting structure and installation method thereof, namely solve the problem of unreliable structurally, the poor stability used at present, and use better under the condition of heavy load, do not need again to increase any cost of material, and process easy for installation.
In order to complete the goal of the invention of the application, this reality is invented by the following technical solutions:
A kind of leading screw mounting structure of the present invention, comprise leading screw and bearing, leading screw top is inserted and is fixed to bearing centre, and leading screw bottom is provided with load, and the external diameter that bearing centre part is inserted on leading screw top is less than the external diameter of leading screw bottom, it is characterized in that:
Leading screw top is inserted bearing centre part and is provided with one or more stepped slot;
A kind of leading screw mounting structure also comprises split type leading screw shoulder ring and bearing retainer, and split type leading screw shoulder ring set is filled to leading screw top and inserts bearing centre part, and it is outside that bearing retainer is installed on split type leading screw shoulder ring.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, split type leading screw shoulder ring comprises leading screw clasp and clasp cover, and leading screw clasp and clasp cover are fixed by the first screw.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, leading screw clasp is split type, has two hemihedry parts, and is provided with one or more projection and one or more projection is corresponding with the one or more stepped slots on leading screw arranges.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, two hemihedry parts of leading screw clasp are combined by clasp cover.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, bearing retainer comprises bearing inner support circle, bearing outer support circle, bearing briquetting and screw mandrel fixed base, bearing inner support circle upper end is connected with bearing inner race, lower end is connected with screw mandrel, bearing outer support circle lower end is connected with bearing outer ring, upper end is connected with bearing briquetting, and bearing is fixed on screw mandrel fixed base by the second screw by bearing briquetting.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, between bearing outer support circle and clasp overlap, certain gap is set.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, bearing briquetting is shoulder shape.
A kind of leading screw installation method disclosed by the invention, comprising:
Step one: leading screw lower end arranges certain load, upper end is inserted by being diminished by its external diameter and is fixed to bearing by screw-thread fit and screw, then leading screw loads screw mandrel fixed base together with bearing, bearing inner support circle upper end is connected with bearing inner race simultaneously, lower end is connected with screw mandrel, and bearing outer support circle lower end is connected with bearing outer ring;
Step 2: leading screw top is inserted between bearing centre part and leading screw clasp and is assembled together with protruding the load sharing leading screw lower end by one or more stepped slot;
Step 3: leading screw clasp is split type and is combined by clasp cover, leading screw clasp and clasp overlap and are removably assembled to leading screw top and insert bearing centre part;
Step 4: bearing is fixed on screw mandrel fixed base by the second screw by bearing briquetting, simultaneously bearing outer support circle upper end is connected with bearing briquetting and bearing briquetting compresses leading screw clasp and clasp cover from top;
Step 5: bearing briquetting is that shoulder shape is to share the load of leading screw lower end.
Beneficial effect
A kind of leading screw mounting structure disclosed by the invention and installation method thereof, symmetrical halves form is divided into by screw mandrel clasp, can according to the size of load, select multiple step stepped slot, greatly improve than the reliability of being fixed screw mandrel by nut, have screw mandrel shoulder ring split-type design concurrently, the material requested external diameter of same size screw mandrel is little, be convenient to screw mandrel processing, and save material, use more flexible.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of leading screw mounting structure disclosed by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Fig. 1 is the sectional view of a kind of leading screw mounting structure disclosed by the invention, as shown in Figure 1, a kind of leading screw mounting structure of the present invention, comprise leading screw 01 and bearing 02, leading screw 01 top is inserted and is fixed to bearing 02 center, leading screw 01 bottom is provided with load 03, and the external diameter that bearing 02 core is inserted on leading screw 01 top is less than the external diameter of leading screw 01 bottom, it is characterized in that:
Leading screw 01 top is inserted bearing 02 core and is provided with one or more stepped slot 04;
A kind of leading screw mounting structure also comprises split type leading screw shoulder ring and bearing retainer, and split type leading screw shoulder ring set is filled to leading screw top and inserts bearing centre part, and it is outside that bearing retainer is installed on split type leading screw shoulder ring.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, split type leading screw shoulder ring comprises leading screw clasp 05 and clasp cover 06, and leading screw clasp 05 and clasp cover 06 are fixed by the first screw 07.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, leading screw clasp 05 is split type, there are two hemihedry part (not shown)s, and are provided with one or more projection 08 and one or more projection 08 is corresponding with the one or more stepped slots 04 on leading screw 01 arranges.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, two hemihedry parts of leading screw clasp 05 are combined by clasp cover 06.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, bearing retainer comprises bearing inner support circle 09, bearing outer support circle 10, bearing briquetting 11 and screw mandrel fixed base 12, bearing inner support circle 09 upper end is connected with bearing inner race, lower end is connected with screw mandrel 01, bearing outer support circle 10 lower end is connected with bearing outer ring, upper end is connected with bearing briquetting 11, and bearing is fixed on screw mandrel fixed base 12 by the second screw 13 by bearing briquetting 11.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, bearing outer support circle 10 and clasp arrange certain gap between overlapping 06.
In the embodiment of a kind of leading screw mounting structure disclosed by the invention, bearing briquetting 11 is shoulder shape.
A kind of leading screw installation method disclosed by the invention, comprising:
Step one: leading screw 01 lower end arranges certain load 03, upper end is inserted by being diminished by its external diameter and is fixed to bearing 02 by screw-thread fit and screw, then leading screw 01 loads screw mandrel fixed base 12 together with bearing 02, bearing inner support circle 09 upper end is connected with bearing inner race simultaneously, lower end is connected with screw mandrel 01, and bearing outer support circle 10 lower end is connected with bearing outer ring;
Step 2: leading screw 01 top is inserted between bearing centre part and leading screw clasp 05 and is assembled together with protruding 08 load 03 sharing leading screw 01 lower end by one or more stepped slot 04;
Step 3: leading screw clasp 05 is for split type and combined by clasp cover 06, and leading screw clasp 05 and clasp overlap 06 and be removably assembled to leading screw 01 top and insert bearing centre part;
Step 4: bearing 02 is fixed on screw mandrel fixed base 12 by the second screw 13 by bearing briquetting 11, simultaneously bearing outer support circle 10 upper end is connected with bearing briquetting 11 and bearing briquetting 11 compresses leading screw clasp 05 from top and clasp overlaps 06;
Step 5: bearing briquetting 11 is that shoulder shape is to share the load 03 of leading screw 01 lower end.
The above is only the present invention's preferably mode of execution, not does any pro forma restriction to technological scheme of the present invention.Everyly do any simple modification according to technical spirit of the present invention to above embodiment, variation and modification, all fall into protection scope of the present invention.
Claims (8)
1. a leading screw mounting structure, comprise leading screw and bearing, described leading screw top is inserted and is fixed to described bearing centre, and described leading screw bottom is provided with load, the external diameter that bearing centre part is inserted on described leading screw top is less than the external diameter of described leading screw bottom, it is characterized in that:
Described leading screw top is inserted bearing centre part and is provided with one or more stepped slot;
Described a kind of leading screw mounting structure also comprises split type leading screw shoulder ring and bearing retainer, and described split type leading screw shoulder ring set is filled to described leading screw top and inserts bearing centre part, and it is outside that described bearing retainer is installed on described split type leading screw shoulder ring.
2. a kind of leading screw mounting structure as claimed in claim 1, is characterized in that: described split type leading screw shoulder ring comprises leading screw clasp and clasp cover, and described leading screw clasp and clasp cover are fixed by the first screw.
3. a kind of leading screw mounting structure as claimed in claim 2, it is characterized in that: described leading screw clasp is split type, there are two hemihedry parts, and are provided with one or more projection and described one or more projection is corresponding with the one or more stepped slots on leading screw arranges.
4. a kind of leading screw mounting structure as claimed in claim 3, is characterized in that: two hemihedry parts of described leading screw clasp are combined by clasp cover.
5. a kind of leading screw mounting structure as claimed in claim 1, it is characterized in that: described bearing retainer comprises bearing inner support circle, bearing outer support circle, bearing briquetting and screw mandrel fixed base, described bearing inner support circle upper end is connected with bearing inner race, lower end is connected with screw mandrel, described bearing outer support circle lower end is connected with bearing outer ring, upper end is connected with bearing briquetting, and bearing is fixed on screw mandrel fixed base by the second screw by described bearing briquetting.
6. a kind of leading screw mounting structure as claimed in claim 5, is characterized in that: arrange certain gap between described bearing outer support circle and clasp overlap.
7. a kind of leading screw mounting structure as claimed in claim 5, is characterized in that: described bearing briquetting is shoulder shape.
8. a leading screw installation method, is characterized in that: described installation method comprises:
Step one: leading screw lower end arranges certain load, upper end is inserted by being diminished by its external diameter and is fixed to bearing by screw-thread fit and screw, then leading screw loads screw mandrel fixed base together with bearing, bearing inner support circle upper end is connected with bearing inner race simultaneously, lower end is connected with screw mandrel, and bearing outer support circle lower end is connected with bearing outer ring;
Step 2: leading screw top is inserted between bearing centre part and leading screw clasp and is assembled together with protruding the load sharing leading screw lower end by one or more stepped slot;
Step 3: leading screw clasp is split type and is combined by clasp cover, leading screw clasp and clasp overlap and are removably assembled to leading screw top and insert bearing centre part;
Step 4: bearing is fixed on screw mandrel fixed base by the second screw by bearing briquetting, simultaneously bearing outer support circle upper end is connected with bearing briquetting and bearing briquetting compresses leading screw clasp and clasp cover from top;
Step 5: bearing briquetting is that shoulder shape is to share the load of leading screw lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334618.6A CN104930149B (en) | 2015-06-17 | 2015-06-17 | A kind of leading screw mounting structure and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334618.6A CN104930149B (en) | 2015-06-17 | 2015-06-17 | A kind of leading screw mounting structure and its installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930149A true CN104930149A (en) | 2015-09-23 |
| CN104930149B CN104930149B (en) | 2018-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510334618.6A Active CN104930149B (en) | 2015-06-17 | 2015-06-17 | A kind of leading screw mounting structure and its installation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481765A (en) * | 2015-11-30 | 2017-03-08 | 衡阳双雁运输机械有限公司 | A kind of leading screw mounting structure |
| CN106584059A (en) * | 2016-12-29 | 2017-04-26 | 重庆仕兴鸿精密机械设备有限公司 | Ball screw installing technique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004347099A (en) * | 2003-05-26 | 2004-12-09 | Kss Kk | Backlash eliminated nut |
| CN201836321U (en) * | 2010-09-30 | 2011-05-18 | 浙江捷昌线性驱动科技股份有限公司 | Lead screw transmission system of electric push rod |
| CN103062351A (en) * | 2012-12-23 | 2013-04-24 | 浙江大学 | Light-load ball screw pair installing and supporting device |
| CN203477226U (en) * | 2013-10-10 | 2014-03-12 | 浙江荣晟环保纸业股份有限公司 | Lead screw fixing device |
-
2015
- 2015-06-17 CN CN201510334618.6A patent/CN104930149B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004347099A (en) * | 2003-05-26 | 2004-12-09 | Kss Kk | Backlash eliminated nut |
| CN201836321U (en) * | 2010-09-30 | 2011-05-18 | 浙江捷昌线性驱动科技股份有限公司 | Lead screw transmission system of electric push rod |
| CN103062351A (en) * | 2012-12-23 | 2013-04-24 | 浙江大学 | Light-load ball screw pair installing and supporting device |
| CN203477226U (en) * | 2013-10-10 | 2014-03-12 | 浙江荣晟环保纸业股份有限公司 | Lead screw fixing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481765A (en) * | 2015-11-30 | 2017-03-08 | 衡阳双雁运输机械有限公司 | A kind of leading screw mounting structure |
| CN106584059A (en) * | 2016-12-29 | 2017-04-26 | 重庆仕兴鸿精密机械设备有限公司 | Ball screw installing technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104930149B (en) | 2018-03-09 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Lead screw mounting structure and mounting method thereof Effective date of registration: 20190726 Granted publication date: 20180309 Pledgee: Sichuan Xichong rural commercial bank Limited by Share Ltd Pledgor: Chuanbei Vacuum Technology (Beijing) Co., Ltd.|Sichuan nine days Vacuum Technology Co., Ltd. Registration number: 2019510000085 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210324 Granted publication date: 20180309 Pledgee: Sichuan Xichong rural commercial bank Limited by Share Ltd. Pledgor: CHUANBEI VACUUM TECHNOLOGY (BEIJING) Co.,Ltd. Registration number: 2019510000085 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |