CN102767601A - Threaded shaft pillar lead screw - Google Patents
Threaded shaft pillar lead screw Download PDFInfo
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- CN102767601A CN102767601A CN2011101153782A CN201110115378A CN102767601A CN 102767601 A CN102767601 A CN 102767601A CN 2011101153782 A CN2011101153782 A CN 2011101153782A CN 201110115378 A CN201110115378 A CN 201110115378A CN 102767601 A CN102767601 A CN 102767601A
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- screw
- leading screw
- lead screw
- thread
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Abstract
The invention relates to a threaded shaft pillar lead screw which is characterized by comprising a lead screw, studs, a jacket, inner gear rings, circular ring end covers and elastic inner retainer rings. The lead screw penetrates through the inside of the jacket, the studs with external screw thread are located between the lead screw and the jacket, the inner gear rings are installed in the interior of two ends of the jacket respectively, the circular ring end covers which play a role in fixing the studs axially are installed at the outer ends of the interior of the inner gear rings respectively, and the elastic inner retainer rings are inserted into the inner gear ring to retain the circular ring end covers. The threaded shaft pillar lead screw has the advantages of long service life, strong loading capacity and high precision. The corresponding thread angle and form are selected based on requirements, so as to correspondingly satisfy the requirements of axial direction, radial direction and lead screw rotating force. Driving transmission or driven transmission of the jacket or the lead screw can be selected arbitrarily according to the specific application. The threaded shaft pillar lead screw replaces an ordinary lead screw which refers to a ball screw. Therefore, the threaded shaft pillar lead screw is widely applied in machine tool industry, especially large-size machine tools, and in aerospace, aviation, military industry, arms, oil equipment, chemical equipment, automation equipment, automobile industry, metallurgical industry, special-purpose equipment and the like.
Description
Technical field
The present invention relates to mechanical structure field, a kind of screw thread jack-post leading screw is provided especially.
Background technique
Existing ball screw, intensity is low, and load is little, and external ball screw structure is single, and leading screw tooth-shape structure constrained is not easy to make and use.In order to improve the intensity of leading screw, increase load-carrying ability, need rational structure.
Summary of the invention
The objective of the invention is to improve intensity in order to strengthen leading screw load, the spy provides a kind of screw thread jack-post leading screw.
The invention provides a kind of screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw 1, double-screw bolt 2, overcoat 3, ring gear 4, annulus end cap 5, elasticity inner shield ring 6;
Wherein: leading screw 1 passes the inside of overcoat 3; Have externally threaded double-screw bolt 2 between leading screw 1 and overcoat 3; The inside, two ends of overcoat 3 is equipped with ring gear 4; The annulus end cap 5 that plays 2 effects of axial restraint double-screw bolt is installed in the outer end, inside of ring gear 4, and elasticity inner shield ring 6 embeds ring gear 4 and blocks annulus end cap 5.
The screw thread of described leading screw 1, double-screw bolt 2 and overcoat 3 is square threaded form, v thread, trapezoidal thread, involute screw thread or arc screw thread.
When the screw thread of described leading screw 1, double-screw bolt 2 and overcoat 3 was v thread or trapezoidal thread, the angle of screw thread was 20 ~ 120 °.
The two ends of described double-screw bolt 2 have tooth axle 201 and spindle nose 202;
Wherein: tooth axle 201 is an outside thread, and spindle nose 202 is littler than the diameter of tooth axle 201.
The parameter of the tooth of described ring gear 4 is consistent with the parameter of the tooth of double-screw bolt 2.
Have on the described annulus end cap 5 quantity and arrangement and double-screw bolt 2 position consistency and greater than the hole of spindle nose 202 diameters; Annulus end cap 5 centers have the hole greater than leading screw 1 external diameter.
Screw thread jack-post leading screw of the present invention has the compages and the characteristic of screw thread, roller bearing, gear and worm and gear transmission:
Structure: the similar roller bearing of general structure.
Leading screw is similar to bearing inner ring, and is the outside thread leading screw, can select the screw thread of single head or bull, different pitch, helical pitch, the angle of thread and thread forms.Require selected suitable connection or fixed form according to transmission.
Double-screw bolt is similar to bearing roller, and is that outside thread, pitch are identical with leading screw, form is identical with angle, can change as requested.Distolateral at its diaxon is that tooth axle, outermost end are thin spindle noses, and its quantity is not interfered selected according to payload and arrangement.
Overcoat is similar to outer race, and is internal thread, and the pitch of screw thread, helical pitch, a number, form and angle are identical with leading screw.Its external sleeve two ends are respectively equipped with ring gear, and the ring gear outer end is provided with the annulus end cap, and are spacing by interior circlip.
Principle:
Leading screw is to roll to cooperate with the screw thread of double-screw bolt and overcoat, is again mutual worm gear, the gear motion of worm screw between leading screw and double-screw bolt simultaneously.As requested, selected quality of fit state can not have the gap.The screw-thread fit of overcoat and double-screw bolt is the gear motion of interior external tooth axle, does not have relative axial displacement.The cooperation of overcoat and double-screw bolt is equivalent to the nut that can roll, and the nut and the leading screw of this rolling rotate relatively, has therefore formed the axial relative displacement of leading screw with outer inner room, has realized the transmission agency of leading screw.
According to concrete applicable cases, can select the active of overcoat or lead screw transmission and passive arbitrarily.
Advantage of the present invention:
Screw thread jack-post leading screw of the present invention, the life-span is long, the load ability is strong, precision is high.Selected as requested respective threads angle and form, can correspondingly satisfy axially, radially, the requirement of leading screw rotating force.According to concrete applicable cases, can select the active of overcoat or lead screw transmission and passive arbitrarily.Replace common leading screw, ball screw.Machine tool industry, machine tool and numerical control machine tool especially are large size machine tool, space flight, aviation, military project, weapon, oil equipment, chemical industry equipment, automation equipment; Extensive uses such as automotive industry, metallurgical industry, special device.
Description of drawings
Below in conjunction with accompanying drawing and mode of execution the present invention is done further detailed explanation:
Fig. 1 cuts structural representation open for screw thread jack-post leading screw integral body;
Fig. 2 is a screw thread jack-post leading screw end cut-away diagram;
Fig. 3 is a screw thread jack-post leading screw end view.
Embodiment
Present embodiment provides a kind of screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw 1, double-screw bolt 2, overcoat 3, ring gear 4, annulus end cap 5, elasticity inner shield ring 6;
Wherein: leading screw 1 passes the inside of overcoat 3; Have externally threaded double-screw bolt 2 between leading screw 1 and overcoat 3; The inside, two ends of overcoat 3 is equipped with ring gear 4; The annulus end cap 5 that plays 2 effects of axial restraint double-screw bolt is installed in the outer end, inside of ring gear 4, and elasticity inner shield ring 6 embeds ring gear 4 and blocks annulus end cap 5.
The screw thread of described leading screw 1 is a square threaded form.
The two ends of described double-screw bolt 2 have tooth axle 201 and spindle nose 202;
Wherein: tooth axle 201 is an outside thread, and spindle nose 202 is littler than the diameter of tooth axle 201.
The parameter of the tooth of described ring gear 4 is consistent with the parameter of the tooth of double-screw bolt 2.
The center of described annulus end cap 5 has the hole greater than leading screw 1 external diameter.
Present embodiment advantage: axially receive loading capability strong.
Present embodiment provides a kind of screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw 1, double-screw bolt 2, overcoat 3, ring gear 4, annulus end cap 5, elasticity inner shield ring 6;
Wherein: leading screw 1 passes the inside of overcoat 3; Have externally threaded double-screw bolt 2 between leading screw 1 and overcoat 3; The inside, two ends of overcoat 3 is equipped with ring gear 4; The annulus end cap 5 that plays 2 effects of axial restraint double-screw bolt is installed in the outer end, inside of ring gear 4, and elasticity inner shield ring 6 embeds ring gear 4 and blocks annulus end cap 5.
The screw thread of described leading screw 1 is a v thread, and the angle of screw thread is 20 °.
The two ends of described double-screw bolt 2 have tooth axle 201 and spindle nose 202;
Wherein: tooth axle 201 is an outside thread, and spindle nose 202 is littler than the diameter of tooth axle 201.
The parameter of the tooth of described ring gear 4 is consistent with the parameter of the tooth of double-screw bolt 2.
The center of described annulus end cap 5 has the hole greater than leading screw 1 external diameter.
The present embodiment advantage: machining accuracy is high, and axial carrying capacity is strong.
Present embodiment provides a kind of screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw 1, double-screw bolt 2, overcoat 3, ring gear 4, annulus end cap 5, elasticity inner shield ring 6;
Wherein: leading screw 1 passes the inside of overcoat 3; Have externally threaded double-screw bolt 2 between leading screw 1 and overcoat 3; The inside, two ends of overcoat 3 is equipped with ring gear 4; The annulus end cap 5 that plays 2 effects of axial restraint double-screw bolt is installed in the outer end, inside of ring gear 4, and elasticity inner shield ring 6 embeds ring gear 4 and blocks annulus end cap 5.
The screw thread of described leading screw 1 is a V thread screw, and the angle of screw thread is 60 °.
The two ends of described double-screw bolt 2 have tooth axle 201 and spindle nose 202;
Wherein: tooth axle 201 is an outside thread, and spindle nose 202 is littler than the diameter of tooth axle 201.
The parameter of the tooth of described ring gear 4 is consistent with the parameter of the tooth of double-screw bolt 2.
The center of described annulus end cap 5 has the hole greater than leading screw 1 external diameter.
The present embodiment advantage: axially and radially receive loading capability strong, precision is high.
Present embodiment provides a kind of screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw 1, double-screw bolt 2, overcoat 3, ring gear 4, annulus end cap 5, elasticity inner shield ring 6;
Wherein: leading screw 1 passes the inside of overcoat 3; Have externally threaded double-screw bolt 2 between leading screw 1 and overcoat 3; The inside, two ends of overcoat 3 is equipped with ring gear 4; The annulus end cap 5 that plays 2 effects of axial restraint double-screw bolt is installed in the outer end, inside of ring gear 4, and elasticity inner shield ring 6 embeds ring gear 4 and blocks annulus end cap 5.
The screw thread of described leading screw 1 is a trapezoidal thread, and the angle of screw thread is 60 °.
The two ends of described double-screw bolt 2 have tooth axle 201 and spindle nose 202;
Wherein: tooth axle 201 is an outside thread, and spindle nose 202 is littler than the diameter of tooth axle 201.
The parameter of the tooth of described ring gear 4 is consistent with the parameter of the tooth of double-screw bolt 2.
The center of described annulus end cap 5 has the hole greater than leading screw 1 external diameter.
Present embodiment advantage: axially and radially receive loading capability strong.
Present embodiment provides a kind of screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw 1, double-screw bolt 2, overcoat 3, ring gear 4, annulus end cap 5, elasticity inner shield ring 6;
Wherein: leading screw 1 passes the inside of overcoat 3; Have externally threaded double-screw bolt 2 between leading screw 1 and overcoat 3; The inside, two ends of overcoat 3 is equipped with ring gear 4; The annulus end cap 5 that plays 2 effects of axial restraint double-screw bolt is installed in the outer end, inside of ring gear 4, and elasticity inner shield ring 6 embeds ring gear 4 and blocks annulus end cap 5.
The screw thread of described leading screw 1 is a trapezoidal thread, and the angle of screw thread is 100 °.
The two ends of described double-screw bolt 2 have tooth axle 201 and spindle nose 202;
Wherein: tooth axle 201 is an outside thread, and spindle nose 202 is littler than the diameter of tooth axle 201.
The parameter of the tooth of described ring gear 4 is consistent with the parameter of the tooth of double-screw bolt 2.
The center of described annulus end cap 5 has the hole greater than leading screw 1 external diameter.
Present embodiment advantage: radially receive loading capability strong.
Present embodiment provides a kind of screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw 1, double-screw bolt 2, overcoat 3, ring gear 4, annulus end cap 5, elasticity inner shield ring 6;
Wherein: leading screw 1 passes the inside of overcoat 3; Have externally threaded double-screw bolt 2 between leading screw 1 and overcoat 3; The inside, two ends of overcoat 3 is equipped with ring gear 4; The annulus end cap 5 that plays 2 effects of axial restraint double-screw bolt is installed in the outer end, inside of ring gear 4, and elasticity inner shield ring 6 embeds ring gear 4 and blocks annulus end cap 5.
The screw thread of described leading screw 1 is a v thread, and the angle of screw thread is 120 °.
The two ends of described double-screw bolt 2 have tooth axle 201 and spindle nose 202;
Wherein: tooth axle 201 is an outside thread, and spindle nose 202 is littler than the diameter of tooth axle 201.
The parameter of the tooth of described ring gear 4 is consistent with the parameter of the tooth of double-screw bolt 2.
The center of described annulus end cap 5 has the hole greater than leading screw 1 external diameter.
Present embodiment advantage: radially receive loading capability strong.
Claims (6)
1. screw thread jack-post leading screw, it is characterized in that: described screw thread jack-post leading screw comprises leading screw (1), double-screw bolt (2), overcoat (3), ring gear (4), annulus end cap (5), elasticity inner shield ring (6);
Wherein: leading screw (1) passes the inside of overcoat (3); Having externally threaded double-screw bolt (2) is positioned between leading screw (1) and the overcoat (3); The inside, two ends of overcoat (3) is equipped with ring gear (4); The annulus end cap (5) that plays axial restraint double-screw bolt (2) effect is installed in the outer end, inside of ring gear (4), and elasticity inner shield ring (6) embeds ring gear (4) and blocks annulus end cap (5).
2. according to the described screw thread jack-post of claim 1 leading screw, it is characterized in that: the screw thread of described leading screw (1), double-screw bolt (2) and overcoat (3) is square threaded form, v thread, trapezoidal thread, involute screw thread or arc screw thread.
3. according to the described screw thread jack-post of claim 1 leading screw, it is characterized in that: when the screw thread of described leading screw (1), double-screw bolt (2) and overcoat (3) was v thread or trapezoidal thread, the angle of screw thread was 20 ~ 120 °.
4. according to the described screw thread jack-post of claim 1 leading screw, it is characterized in that: the two ends of described double-screw bolt (2) have tooth axle (201) and spindle nose (202);
Wherein: tooth axle (201) is an outside thread, and spindle nose (202) is littler than the diameter of tooth axle (201).
5. according to the described screw thread jack-post of claim 1 leading screw, it is characterized in that: the parameter of the tooth of described ring gear (4) is consistent with the parameter of the tooth of double-screw bolt (2).
6. according to the described screw thread jack-post of claim 1 leading screw, it is characterized in that: have on the described annulus end cap (5) quantity and arrangement and double-screw bolt (2) position consistency and greater than the hole of spindle nose (202) diameter; Annulus end cap (5) center has the hole greater than leading screw (1) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101153782A CN102767601A (en) | 2011-05-05 | 2011-05-05 | Threaded shaft pillar lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101153782A CN102767601A (en) | 2011-05-05 | 2011-05-05 | Threaded shaft pillar lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102767601A true CN102767601A (en) | 2012-11-07 |
Family
ID=47095114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101153782A Pending CN102767601A (en) | 2011-05-05 | 2011-05-05 | Threaded shaft pillar lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767601A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105452724A (en) * | 2013-07-16 | 2016-03-30 | 斯凯孚公司 | Non back-driveable screw mechanism |
| CN108317222A (en) * | 2018-04-16 | 2018-07-24 | 暨伟 | A kind of screw rod cylinder wheel decelerator and its screw machining method |
Citations (9)
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|---|---|---|---|---|
| JP2001304313A (en) * | 2000-04-19 | 2001-10-31 | Asmo Co Ltd | Pressurizing motor-driven actuator |
| CN2628807Y (en) * | 2003-07-29 | 2004-07-28 | 西南交通大学 | Planetary roller screw auxiliary |
| CN2662008Y (en) * | 2003-11-27 | 2004-12-08 | 于宙 | Planetary type roller screw rod pair with sharp V-thread |
| JP2005344888A (en) * | 2004-06-04 | 2005-12-15 | Nsk Ltd | Planetary roller screw device |
| JP2007127241A (en) * | 2005-11-07 | 2007-05-24 | Nsk Ltd | Planetary roller screw |
| CN101059165A (en) * | 2006-12-19 | 2007-10-24 | 兰州理工大学 | Lead screw nut pair transmission control device and method, nut subassembly processing method |
| CN201230156Y (en) * | 2008-07-14 | 2009-04-29 | 河南森源电气股份有限公司 | Screw nut pushing mechanism for hand cart |
| CN101749392A (en) * | 2008-12-16 | 2010-06-23 | 徐众 | Screw rod with rollers |
| CN202065431U (en) * | 2011-05-05 | 2011-12-07 | 郭杰 | Threaded-axostyle lead screw |
-
2011
- 2011-05-05 CN CN2011101153782A patent/CN102767601A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001304313A (en) * | 2000-04-19 | 2001-10-31 | Asmo Co Ltd | Pressurizing motor-driven actuator |
| CN2628807Y (en) * | 2003-07-29 | 2004-07-28 | 西南交通大学 | Planetary roller screw auxiliary |
| CN2662008Y (en) * | 2003-11-27 | 2004-12-08 | 于宙 | Planetary type roller screw rod pair with sharp V-thread |
| JP2005344888A (en) * | 2004-06-04 | 2005-12-15 | Nsk Ltd | Planetary roller screw device |
| JP2007127241A (en) * | 2005-11-07 | 2007-05-24 | Nsk Ltd | Planetary roller screw |
| CN101059165A (en) * | 2006-12-19 | 2007-10-24 | 兰州理工大学 | Lead screw nut pair transmission control device and method, nut subassembly processing method |
| CN201230156Y (en) * | 2008-07-14 | 2009-04-29 | 河南森源电气股份有限公司 | Screw nut pushing mechanism for hand cart |
| CN101749392A (en) * | 2008-12-16 | 2010-06-23 | 徐众 | Screw rod with rollers |
| CN202065431U (en) * | 2011-05-05 | 2011-12-07 | 郭杰 | Threaded-axostyle lead screw |
Non-Patent Citations (1)
| Title |
|---|
| 闻邦椿: "《机械设计手册》", 30 January 2010, 机械工业出版社, article "机械零部件设计（连接、紧固与传动）" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105452724A (en) * | 2013-07-16 | 2016-03-30 | 斯凯孚公司 | Non back-driveable screw mechanism |
| CN108317222A (en) * | 2018-04-16 | 2018-07-24 | 暨伟 | A kind of screw rod cylinder wheel decelerator and its screw machining method |
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Application publication date: 20121107 |