CN204572990U - A kind of ball screw precision auger transmission device - Google Patents
A kind of ball screw precision auger transmission device Download PDFInfo
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- CN204572990U CN204572990U CN201520238239.2U CN201520238239U CN204572990U CN 204572990 U CN204572990 U CN 204572990U CN 201520238239 U CN201520238239 U CN 201520238239U CN 204572990 U CN204572990 U CN 204572990U
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- retainer
- screw mandrel
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- nut overcoat
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Abstract
The utility model relates to a kind of ball screw precision auger transmission device, for field of mechanical technique.It comprises screw mandrel, nut overcoat and retainer, described nut overcoat internal surface is processed into smooth surface, described retainer is arranged to T-shaped, upper surface is processed with through hole, after retainer launches, corresponding through hole centre distance is the integral multiple of screw mandrel pitch, be provided with steel ball in through hole, the position of through hole and the raceway of screw mandrel circulate and are consistent, and the smooth surface of described nut overcoat and retainer upper surface connect into an assembly parts; Described screw mandrel is connected with steel ball by the raceway on screw mandrel through after symmetrically arranged two assembly parties; Be provided with gap spacer between described two assembly parties, then fixed by link.This device increases gap spacer and finely tunes gap, and can realize the transmission of screw mandrel precision auger, and it is little to rub, transmission efficiency is high, and noise is little, installation, convenient disassembly, and cost is low, and applicability is strong, has greatly liberated labour force, has improve manufacturing efficiency.
Description
Technical field
The utility model belongs to field of mechanical technique, particularly relates to a kind of ball screw precision auger transmission device.
Background technique
Ball screw is the transmission component that machine tool and precision optical machinery the most often use, and its major function converts rotary motion to linear motion, or torque axis is changed into axial repeated action power, has highi degree of accuracy, reversibility and high efficiency feature concurrently simultaneously.Owing to having very little surface friction drag, ball screw is widely used in various industry equipment and precision type instrument.Bearing is become scroll actions from sliding action by its significance exactly.Current high-end mechanical field substitutes the screw mandrel of the sliding frictions such as trapezoidal screw substantially.
Need rotary motion to be converted to linear movement components low-end product at present and still use trapezoidal screw, trapezoidal screw transmission efficiency is low, and friction is large, and easily generate heat, the life-span is low.And though higher-end Riveting Tool adopts ball screw.But the ball screw used at present is mostly nut rolling way and lead screw ball track carries, and does not arrange retainer.Seldom arranging in retainer ball wire bar pair, retainer is only as preventing the closely front and back contact friction of too much steel ball, retainer is not used as carrier, use as independently sliding bearing again while not assisting screw mandrel to complete scroll actions nut overcoat, and be difficult to realize the demand that precision drive adjusts gap.
Current ball screw has following deficiency and defect:
1, complex structure, can not realize the demand that precision drive adjusts gap;
2, in order to high-mechanic, adopt Inner eycle, manufacturing procedure is many, especially needs the reverse through hole processing steel ball circulating rolling to guarantee that steel ball realizes Infinite Cyclic, complex structure, also makes the size of nut become very large;
3, add upper part feed screw nut except self complexity, cylindrical also needs gear or coordinates the connection set of transmission with other, makes complicated processing itself become more difficult, and unstable;
4, because raceway is the transmission of ball continuous circulation, each ball of circulation is except needing to bear except the extruding of screw mandrel and nut, also contact with each other with front and back ball and extrude, hamper the circulating rolling that ball is round and smooth, and easy frictional heating, because needs ball quantity is many, when higher speed rotates, noise is large, this end to end steel ball carrying time gapless or few gap process in, need screw mandrel and nut to process and there is high concentricity, and the low meeting of concentricity causes stuck; The position of part decentraction can be worn and torn comparatively fast, service life reduction.This just greatly reduces the efficiency of ball leading screw driving, and transmission efficiency reduces greatly;
5, in order to ensure the Infinite Cyclic of ball, requisite space is large, and weight is high, does molehill;
6, in order to realize ball circulating rolling in raceway, need to increase reverser, assembling trouble, cost intensive; Inconvenient maintenance.
Model utility content
For solving the problems of the technologies described above, the utility model object is to provide a kind of ball screw precision auger transmission device.
Scheme of the present utility model is as follows:
A kind of ball screw precision auger transmission device, comprise screw mandrel, nut overcoat and retainer, described nut overcoat internal surface is processed into smooth surface, described retainer is arranged to T-shaped, upper surface is processed with through hole, and after retainer launches, corresponding through hole centre distance is the integral multiple of screw mandrel pitch, is provided with steel ball in through hole, the position of through hole and the raceway of screw mandrel circulate and are consistent, and the smooth surface of described nut overcoat and retainer upper surface connect into an assembly parts; Described screw mandrel is connected with steel ball by the raceway on screw mandrel through after symmetrically arranged two assembly parties; Be provided with gap spacer between described two assembly parties, then fixed by link.
Described link is screw, and screw is fixed through two retainers and the gap spacer be arranged on retainer.
Described link is gland, and gland is pressed in the projection upper end of two retainers; Screw is fixed on retainer through gland and nut overcoat in the vertical direction.
End face bearing is provided with between described retainer and nut overcoat.
This device tool has the following advantages and beneficial effect:
(1) nut overcoat inwall does not arrange raceway, and processing is simple, greatly reduces the requirement of process equipment;
(2) structure is simple, assembles simple and reliable;
(3) adjacent steel ball contacts before and after not needing, and rub little, transmission efficiency is high, and noise is little;
(4) concentricity easy processing reaches requirement, and in the deviation range allowed, owing to having certain intervals between steel ball and steel ball, this is interposed between automatic capturing in the circulating rolling of steel ball and makes up;
(5) can by carrying pulling force size steel ball number reasonable in design, such steel ball and raceway deposit lubricant grease with regard to there being enough spaces, make its life-span obtain guarantee;
(6) convenient disassembly, easy to maintenance, cost is low, and carrying is large;
(7) when only needing retainer to bear external force drive screw mandrel rotation, nut overcoat can assist screw mandrel to complete scroll actions, can can serve as again the effect of independent slide bearing under the effect of rolling steel balls, eliminate sliding bearing, greatly reduce the volume and weight of product.
This is a kind of ball leading screw driving device with superior function, and can arrange concrete parameter according to pulling force flexible in size completely, greatly can reduce volume and weight, transmission precision degree is high, and applicability is strong, has greatly liberated labour force, has improve manufacturing efficiency.
Accompanying drawing explanation
Fig. 1 to Fig. 3 is the utility model embodiment schematic diagram;
Fig. 4 is the utility model nut overcoat schematic diagram;
Fig. 5 is that the utility model nut overcoat launches schematic diagram;
Wherein: 1, screw mandrel; 2, attachment hole; 3, screw; 4, nut overcoat; 5, retainer; 6, steel ball; 7, end face bearing; 8, gap spacer; 9, gland; 41, smooth surface; 51, through hole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further;
embodiment 1
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, a kind of ball screw precision auger transmission device, comprise screw mandrel 1, nut overcoat 4 and retainer 5, described nut overcoat 4 internal surface is processed into smooth surface 41, nut overcoat 4 inwall does not arrange raceway, smooth inwall restriction steel ball 6 moves radially, and makes steel ball 6 between screw mandrel 1, retainer 5, nut overcoat 4, form a relatively airtight space and have certain interval generation circulating rolling; Nut overcoat 4 is processed simply, greatly reduces the requirement of process equipment; Described retainer 5 is arranged to T-shaped, upper surface is processed with through hole 51, the through hole 51 centre distance A that retainer 5 launches rear correspondence is the integral multiple of screw mandrel 1 pitch, centre distance A can adjust according to carrying pulling force, meet corresponding intensity and precision needs, be provided with steel ball 6 in through hole 51, the position of through hole 51 and the raceway of screw mandrel 1 circulate and are consistent, and smooth surface 41 and retainer 5 upper surface of described nut overcoat 4 connect into an assembly parts; Described screw mandrel 1 is connected with steel ball 6 by the raceway on screw mandrel 1 through after symmetrically arranged two assembly parties, and rub little, transmission efficiency is high, and noise is little; Be provided with gap spacer 8 between described two assembly parties, then fixed by link, the thickness of gap spacer 8 is adjustable, thus realizes precision auger transmission.Described link is screw 3, and screw 3 is fixed through two retainers 5 and the gap spacer 8 be arranged on retainer 5, and two retainers 5 and gap spacer 8 are provided with attachment hole 2, for the connection of screw 3.End face bearing 7 or copper packing or teflon pad can also be set between described retainer 5 and nut overcoat 4, reduce friction and heating.
Can by carrying pulling force size steel ball 6 quantity reasonable in design, such steel ball 6 deposits lubricant grease with raceway with regard to there being enough spaces, reduces friction, makes its life-span obtain guarantee.
embodiment 2
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of ball screw precision auger transmission device, comprise screw mandrel 1, nut overcoat 4 and retainer 5, described nut overcoat 4 internal surface is processed into smooth surface 41, nut overcoat 4 inwall does not arrange raceway, smooth inwall restriction steel ball 6 moves radially, and makes steel ball 6 between screw mandrel 1, retainer 5, nut overcoat 4, form a relatively airtight space and have certain interval generation circulating rolling; Nut overcoat 4 is processed simply, greatly reduces the requirement of process equipment; Described retainer 5 is arranged to T-shaped, upper surface is processed with through hole 51, the through hole 51 centre distance A that retainer 5 launches rear correspondence is the integral multiple of screw mandrel 1 pitch, centre distance A can adjust according to carrying pulling force, meet corresponding intensity and precision needs, be provided with steel ball 6 in through hole 51, the position of through hole 51 and the raceway of screw mandrel 1 circulate and are consistent, and smooth surface 41 and retainer 5 upper surface of described nut overcoat 4 connect into an assembly parts; Described screw mandrel 1 is connected with steel ball 6 by the raceway on screw mandrel 1 through after symmetrically arranged two assembly parties, and rub little, transmission efficiency is high, and noise is little; Be provided with gap spacer 8 between described two assembly parties, then fixed by link, the thickness of gap spacer 8 is adjustable, thus realizes precision auger transmission.
Described link is gland 9, and gland 9 is pressed in the projection upper end of two retainers 5; Be fixed on retainer 5 through gland 9 and nut overcoat 4 in the vertical direction by screw, realize the connection between two assembly parties and gap spacer 8, mount and dismount more convenient, owing to not having screw to pass gap spacer 8, because of the longer service life of this gap spacer 8, more difficult damage, and applicability is strong, improve the effect of gap adjustment, greatly liberated labour force, improve manufacturing efficiency.
Although give detailed description and explanation to embodiment of the present utility model above; but what should indicate is; we can carry out various equivalence according to conception of the present utility model to above-mentioned mode of execution and change and amendment; its function produced do not exceed that specification contains yet spiritual time, all should within protection domain of the present utility model.
Claims (4)
1. a ball screw precision auger transmission device, comprise screw mandrel, nut overcoat and retainer, it is characterized in that: described nut overcoat internal surface is processed into smooth surface, described retainer is arranged to T-shaped, upper surface is processed with through hole, and after retainer launches, corresponding through hole centre distance is the integral multiple of screw mandrel pitch, is provided with steel ball in through hole, the position of through hole and the raceway of screw mandrel circulate and are consistent, and the smooth surface of described nut overcoat and retainer upper surface connect into an assembly parts; Described screw mandrel is connected with steel ball by the raceway on screw mandrel through after symmetrically arranged two assembly parties; Be provided with gap spacer between described two assembly parties, then fixed by link.
2. a kind of ball screw precision auger transmission device according to claim 1, is characterized in that: described link is screw, and screw is fixed through two retainers and the gap spacer be arranged on retainer.
3. a kind of ball screw precision auger transmission device according to claim 1, it is characterized in that: described link is gland, gland is pressed in the projection upper end of two retainers; Screw is fixed on retainer through gland and nut overcoat in the vertical direction.
4. a kind of ball screw precision auger transmission device according to claim 2, is characterized in that: be provided with end face bearing between described retainer and nut overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520238239.2U CN204572990U (en) | 2015-04-20 | 2015-04-20 | A kind of ball screw precision auger transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520238239.2U CN204572990U (en) | 2015-04-20 | 2015-04-20 | A kind of ball screw precision auger transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN204572990U true CN204572990U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520238239.2U Active CN204572990U (en) | 2015-04-20 | 2015-04-20 | A kind of ball screw precision auger transmission device |
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| CN (1) | CN204572990U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385646A (en) * | 2018-03-23 | 2018-08-10 | 中交天津港湾工程研究院有限公司 | A kind of soil pressure cell inbuilt device and its method for embedding |
| CN109058407A (en) * | 2018-10-17 | 2018-12-21 | 深圳盛世电梯股份有限公司 | A kind of piecemeal time pearl bolt and nut transmission system |
| CN110526160A (en) * | 2019-08-20 | 2019-12-03 | 安徽信盟装备股份有限公司 | A kind of foam box tooling |
| WO2021139460A1 (en) * | 2020-01-07 | 2021-07-15 | 丽水市英特轴承有限公司 | Novel screw nut pair |
-
2015
- 2015-04-20 CN CN201520238239.2U patent/CN204572990U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385646A (en) * | 2018-03-23 | 2018-08-10 | 中交天津港湾工程研究院有限公司 | A kind of soil pressure cell inbuilt device and its method for embedding |
| CN109058407A (en) * | 2018-10-17 | 2018-12-21 | 深圳盛世电梯股份有限公司 | A kind of piecemeal time pearl bolt and nut transmission system |
| CN110526160A (en) * | 2019-08-20 | 2019-12-03 | 安徽信盟装备股份有限公司 | A kind of foam box tooling |
| WO2021139460A1 (en) * | 2020-01-07 | 2021-07-15 | 丽水市英特轴承有限公司 | Novel screw nut pair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201021 Address after: No.3 workshop West, No.269, Dingjing Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan riveting foot strength Tool Co., Ltd Address before: 236000, 5, 6, 99 east side, No. 2 Fu Ma Road, Yingdong District, Fuyang, Anhui Patentee before: Hong Jinsong |
|
| TR01 | Transfer of patent right |