CN201190771Y - High speed heavy-load ball screw - Google Patents
High speed heavy-load ball screw Download PDFInfo
- Publication number
- CN201190771Y CN201190771Y CNU200820021804XU CN200820021804U CN201190771Y CN 201190771 Y CN201190771 Y CN 201190771Y CN U200820021804X U CNU200820021804X U CN U200820021804XU CN 200820021804 U CN200820021804 U CN 200820021804U CN 201190771 Y CN201190771 Y CN 201190771Y
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- CN
- China
- Prior art keywords
- ball
- nut
- lead screw
- screw pair
- ball screw
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- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A high speed heavy load ball screw pair is composed of a lead screw, balls, a ball guide tube and a nut, wherein the nut and the lead screw are main body components, the lead screw is a core component, the nut is sheathed on the lead screw, the inner surface of the nut is provided with a ball guide tube equal with the ball channel on the outer surface of the lead screw, and the ball is arranged in the ball guide tube in the nut. The utility model particularly relates to a screw transmission device composed of a lead screw, a ball, a ball guide tube, a nut, a return device and a seal ring, wherein the lead screw pair can convert rotating motion into linear motion or convert linear motion into rotating motion. When a servomotor drives the ball screw pair to rotate, the ball transmission can move the nut to drive a work table. The high speed heavy load ball screw pair has simple structure, simple installment and use, stability and reliability, is characterized in high load, high speed and high accuracy, and can satisfy the rapid development of injection machines, casting machines and forging machines.
Description
Technical field:
The utility model relates to ball screw pair, relates in particular to the high-speed overload ball screw pair.
Background technique:
Owing to the electrification of electric injection molding machine, stamping press, die casting lathe, also just the bearing capacity of ball screw pair has been proposed the requirements at the higher level of high load, and the ball screw pair of prior art can not satisfy the requirement of this high load.
The model utility content:
The purpose of this utility model is, overcomes the deficiencies in the prior art part, and a kind of high-speed overload ball screw pair is provided, and can satisfy high speed and heavily loaded technical requirementss such as full electric injection molding machine, stamping press and electrified die casting lathe.
High-speed overload ball screw pair described in the utility model, include leading screw, ball, lead pearl pipe and nut composition, said nut and leading screw are the main components of high-speed overload ball screw pair described in the utility model, and leading screw is a core members, and nut then is nested with on leading screw.On the inner side surface of nut, be provided with the ball that equates with ball channel on the leading screw outer surface and lead the pearl pipe.Leading in the pearl pipe in the nut is provided with ball.Specifically, high-speed overload ball screw pair described in the utility model, include the helicoidal gear that leading screw, nut, back device, seal ring and ball are formed, this lead screw pair both can be converted into straight line motion with rotatablely moving, and also straight line motion can be converted into to rotatablely move.So-called high-speed overload ball screw pair is exactly the rated load ball screw pair bigger than common ball screw pair, and ball screw pair is nothing but that load is added on the nut body, and leading screw and nut move by the ball drive load of rolling in track separately.Clearly, the size of ball and quantity are the keys of the decision load size of bearing, by selecting big helical pitch for use, improved the speed of leading screw, again by selecting for use double thread screw to increase nut body internal loading ball, select the big steel ball of Φ 15.081 for use, improved the rigidity and the load capacity of ball screw pair.From a structural point, big lead screw pair is not suitable for using inner circulation structure, because back device hole is too big on the nut body, and poor processability, nut quenching easy-rupturing is firm inadequately after the assembling.So the utility model adopts leads pearl tubular type nut structure; Adopt the 20CrMno material, advanced carburizing and quenching heat treatment process makes product have higher resistance to flexure and wear resistance; The pearl pipe is led in the processing of the utility model employing metal injection moulding technology, has designed a kind of brand-new pearl pipe of leading simultaneously and has managed tongue structure, is equipped with a block bead device at the pipe back of tongue, has improved the impact resistance of pipe tongue greatly.The pipe tongue fits like a glove according to Gothicism curve plotting and leading screw flute profile fully, and joint is seamlessly transitted, and guarantees the smoothness of reversing device, and its intensity can reach designing requirement.When actuating motor drives the ball screw rotation, drive nut by the ball transmission and move, thereby drive working table movement.
High-speed overload ball screw pair described in the utility model, overall structure is simple, and is easy to install, reliable and stable, have following three characteristics: A) high load characteristics: load rating is compared high more than 2 times with the ball screw that prior art is used always, CT8040/2 specification dynamic load rating reaches 30t.B) high speed characteristics: can move neatly, realize high-speed driving and quick location, fast 1.8 times of the feed speed of the ball screw pair more commonly used, and transmission efficiency height than prior art, energy-saving effect is remarkable.C) highi degree of accuracy: the P4 level among the GB/T17587.3-1998 that can be up to state standards, and constantly perfect along with production technology, progressively extend to other specification, can satisfy the demand of level fast developments such as injection machine, casting lathe, forging machine tool.
Description of drawings:
Accompanying drawing is the structural representation of high-speed overload ball screw pair described in the utility model.Accompanying drawing 1 is the structural representation of broken section state; Accompanying drawing 2 is outward appearance and inner broken section structure combining schematic representation; Accompanying drawing 3 is structural representations of cross section state.1-leading screw 2-ball 3-leads pearl pipe 4-nut
Embodiment:
Referring now to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, be described as follows in conjunction with the embodiments: high-speed overload ball screw pair described in the utility model, include leading screw 1, ball 2, lead pearl pipe 3 and nut 4 compositions, said nut 4 and leading screw 1 are the main components of high-speed overload ball screw pair described in the utility model, leading screw 1 is a core members, and 4 on nut is nested with on leading screw 1.On the inner side surface of nut 4, be provided with the ball that equates with ball channel on leading screw 1 outer surface and lead pearl pipe 3.Leading in the pearl pipe 3 in the nut 4 is provided with ball 2.Specifically, high-speed overload ball screw pair described in the utility model, be a kind ofly to include leading screw 1, ball 2, lead the helicoidal gear that pearl pipe 3, nut 4, back device and seal ring are formed, this lead screw pair both can be converted into straight line motion with rotatablely moving, and also straight line motion can be converted into to rotatablely move.So-called high-speed overload ball screw pair is exactly the rated load ball screw pair bigger than common ball screw pair, and ball screw pair is nothing but that load is added on the nut body, and leading screw 1 and nut 4 move by the ball 2 drive load of rolling in track separately.Clearly, the size of ball 2 and quantity are the keys of the decision load size of bearing, by selecting big helical pitch for use, improved the speed of leading screw 1, again by selecting for use double thread screw to increase nut body internal loading ball 2, select the big steel ball of Φ 15.081 for use, improved the rigidity and the load capacity of ball screw pair.From a structural point, big lead screw pair is not suitable for using inner circulation structure, because back device hole is too big on the nut body, and poor processability, nut quenching easy-rupturing is firm inadequately after the assembling.So the utility model adopts leads pearl tubular type nut structure; Adopt the 20CrMno material, advanced carburizing and quenching heat treatment process makes product have higher resistance to flexure and wear resistance; Pearl pipe 3 is led in the processing of the utility model employing metal injection moulding technology, has designed a kind of brand-new pearl pipe of leading simultaneously and has managed tongue structure, is equipped with a block bead device at the pipe back of tongue, has improved the impact resistance of pipe tongue greatly.The pipe tongue fits like a glove according to Gothicism curve plotting and leading screw flute profile fully, and joint is seamlessly transitted, and guarantees the smoothness of reversing device, and its intensity can reach designing requirement.When actuating motor drives the ball screw rotation, drive nut 4 by ball 2 transmission and move, thereby drive working table movement.High-speed overload ball screw pair described in the utility model, overall structure is simple, and is easy to install, reliable and stable, have following three characteristics: A) high load characteristics: load rating is compared high more than 2 times with the ball screw that prior art is used always, CT8040/2 specification dynamic load rating reaches 30t.B) high speed characteristics: can move neatly, realize high-speed driving and quick location, fast 1.8 times of the feed speed of the ball screw pair more commonly used, and transmission efficiency height than prior art, energy-saving effect is remarkable.C) highi degree of accuracy: the P4 level among the GB/T17587.3-1998 that can be up to state standards, and constantly perfect along with production technology, progressively extend to other specification, can satisfy the demand of level fast developments such as injection machine, casting lathe, forging machine tool.
Claims (1)
1, high-speed overload ball screw pair, it is characterized in that nut (4) and leading screw (1) are main components, leading screw (1) is a core members, nut (4) then is nested with on leading screw (1), on the inner side surface of nut (4), be provided with the ball that equates with ball channel on leading screw (1) outer surface and lead pearl pipe (3); Leading in the pearl pipe (3) in the nut (4) is provided with ball (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820021804XU CN201190771Y (en) | 2008-05-01 | 2008-05-01 | High speed heavy-load ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820021804XU CN201190771Y (en) | 2008-05-01 | 2008-05-01 | High speed heavy-load ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190771Y true CN201190771Y (en) | 2009-02-04 |
Family
ID=40334933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820021804XU Expired - Fee Related CN201190771Y (en) | 2008-05-01 | 2008-05-01 | High speed heavy-load ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190771Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984272A (en) * | 2010-10-26 | 2011-03-09 | 浙江大学 | Heavy-duty ball screw assembly of continuous lubrication |
| CN103867674A (en) * | 2012-12-17 | 2014-06-18 | 江苏品德机电科技有限公司 | Ball screw |
-
2008
- 2008-05-01 CN CNU200820021804XU patent/CN201190771Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984272A (en) * | 2010-10-26 | 2011-03-09 | 浙江大学 | Heavy-duty ball screw assembly of continuous lubrication |
| CN103867674A (en) * | 2012-12-17 | 2014-06-18 | 江苏品德机电科技有限公司 | Ball screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20120501 |